CN108950475B - Net-stretching structure, net-stretching device and net-stretching method - Google Patents

Abstract

The invention relates to a net-stretching structure, a net-stretching device and a net-stretching method, and belongs to the field of display panel manufacturing. The net-stretching device includes: two sets of net-stretching structure groups are arranged oppositely, each set of net-stretching structure groups includes at least one net-stretching structure, each net-stretching structure includes a fixed frame, and a rotatable roller arranged on the fixed frame , the side faces of the rollers of the two sets of net structure groups are configured to be snap-connected to the target sides of the frames formed with the fine metal mask FMM strips, and the target sides are the sides on which the FMM strips are arranged; The fixed frame of each netting structure corresponds to the connected sliding structure, and each sliding structure is configured to drive the corresponding roller to slide on the side of the target; when the sides of the rollers of the two sets of netting structures slide relative to the side of the target, the The side faces of the rollers of the stretched net structure group exert opposing forces for different positions on the target side. The present invention improves the accuracy of the formed FMM. The present invention is used for the web-stretching process in the manufacture of display panels.

Description

Net-stretching structure, net-stretching device and net-stretching method

technical field

The present invention relates to the field of display panel manufacturing, in particular to a net-stretching structure, a net-stretching device and a net-stretching method.

Background technique

Organic Light Emitting Diode (English: Organic Light Emitting Diode, abbreviated: OLED) display panel has gradually become a very promising display field due to its all-solid-state, active light-emitting, high contrast, ultra-thin, low power consumption, fast response speed and many other advantages. of display products. In the production of OLED display panels, a fine metal mask (English: Fine Metal Mask, FMM for short) used for evaporating organic light-emitting materials on a display substrate is an important device in the production process of OLED display panels.

Usually, a set of FMM includes: a frame, a support mask and a plurality of FMM strips. The FMM is generally made by the meshing technology. The meshing process is the process of welding the support mask and the FMM strips to the frame. When a FMM strip is welded, the FMM strip will produce a certain tensile force on the frame (English: Stretch Force, abbreviated as: SF), which will cause the frame to deform, resulting in the final deformation of the entire FMM. In order to balance this tensile force, a certain counterforce (English: Counter Force, referred to as: CF) is usually applied to the frame during the welding process. Currently, a netting device is used to apply CF to the frame during the welding process. The netting device includes a plurality of clips for clamping the frame and applying CF to the frame at the clamping position.

However, due to the fact that each time a FMM strip is welded, the tensile force on the frame changes during the process of opening the net, and the position of the CF applied to the frame by the plurality of clips is fixed, and the SF can only be balanced by adjusting the CF. , the SF cannot be effectively balanced, resulting in lower accuracy of the final FMM.

SUMMARY OF THE INVENTION

In order to achieve this, the embodiments of the present invention provide a net-stretching structure, a net-stretching device, and a net-stretching method, which can solve the problem that the position of the opposing force exerted by the clips of the net-stretching device on the frame during the net-stretching process is fixed and cannot be effectively Balance the tensile force generated by the welded FMM strip on the frame, resulting in the problem of low precision of the final formed FMM. The technical solution is as follows:

According to a first aspect of the embodiments of the present invention, a net stretching device is provided, comprising:

There are two sets of netting structure groups oppositely arranged, each set of said netting structure group includes at least one netting structure, each said netting structure includes a fixed frame, and a rotatable roller arranged on said fixed frame, The side surfaces of the rollers of the two sets of netting structure groups are configured to be snap-connected to the target side surfaces of the frame formed with the fine metal mask FMM strips, and the target side surfaces are the side surfaces on which the FMM strips are arranged;

a sliding structure correspondingly connected with the fixing frame of each of the two stretched net structures in the two sets of stretched net structures, each of the sliding structures is configured to drive a corresponding roller to slide on the side of the target;

When the side surfaces of the rollers of the two sets of web-stretching structures slide relative to the target side surfaces, the side surfaces of the rollers of the two sets of web-stretching structures apply opposing forces to different positions of the target side surfaces.

Optionally, the fixing frame includes a U-shaped structure, the U-shaped structure includes a first strip-shaped structure, and two second strip-shaped structures located at both ends of the first strip-shaped structure and arranged in parallel, the Two ends of the roller are respectively movably connected with the inner sides of the two second strip structures.

Optionally, the fixing frame includes a U-shaped structure, the U-shaped structure includes a first strip-shaped structure, and two second strip-shaped structures located at both ends of the first strip-shaped structure and arranged in parallel, the The roller includes a fixed shaft and a moving ring, two ends of the fixed shaft are respectively fixedly connected with the inner sides of the two second strip structures, and the moving ring is sleeved outside the fixed shaft and can be relative to the Fixed axis rotation.

Optionally, in each of the netting structures, the fixing frame further includes a support frame, the support frame is fixedly connected to the outer side of at least one strip-shaped structure of the U-shaped structure, and each of the fixing frame The supporting frame is connected with the corresponding sliding structure.

Optionally, each group of the stretched net structure group includes at least two stretched net structures arranged in an array along the length direction of the side surface of the target.

Optionally, each of the sliding structures is an integral structure with the corresponding fixing frame, or each of the sliding structures is detachably connected to the corresponding fixing frame.

Optionally, the netting device further includes:

A moving assembly correspondingly connected to the fixing frame of each of the two netting structure groups, each of the moving assemblies is configured to drive the roller to move in a direction perpendicular to the side surface of the target.

According to a second aspect of the embodiments of the present invention, there is provided a netting structure, including:

A fixing frame, and a rotatable roller provided on the fixing frame, the side surface of the roller is configured to be snap-fitted to the target side surface of the frame on which the FMM strip is formed, and the target side surface is the side surface on which the FMM strip is arranged.

Optionally, the net structure also includes:

A sliding structure connected with the fixing frame, the sliding structure is configured to drive a corresponding roller to slide on the side of the target.

According to a third aspect of the embodiments of the present invention, there is provided a method for stretching a net, and the method is applied to any one of the net stretching devices described in the first aspect, and the method includes:

The frame formed with the supporting reticle is clamped in the two sets of web-stretching structure groups that are oppositely arranged on the web-stretching device, so that the sides of the rollers of the two sets of web-stretching structure groups are the targets to be formed into the frames of the FMM strips The opposing force is applied on the side, and the target side is the side on which the FMM strip is to be arranged;

After welding one FMM strip each time, control the sliding structure of the target tensioning structure to drive the corresponding roller to slide to the specified position on the side of the target, so that the side of the corresponding roller exerts a resisting force for the specified position .

The technical solutions provided by the embodiments of the present invention may include the following beneficial effects:

The net-stretching structure, the net-stretching device and the net-stretching method provided by the embodiments of the present invention can control the moving component of the net-stretching device to drive the rollers to move in the direction perpendicular to the target side of the frame before the net is stretched to exert a certain resistive force on the frame , to ensure that the frame does not deform before the net is stretched. At the same time, during the net stretch, the sliding structure in the net structure can be controlled to drive the roller to move on the target side where the FMM strips are welded through the fixed frame connected to it. The different positions of the FMM exert a resistive force on the frame, which effectively balances the tensile force generated by the FMM strip on the frame when the FMM strip is welded, and improves the final formed FMM accuracy.

It is to be understood that the foregoing general description and the following detailed description are exemplary only and do not limit the invention.

Description of drawings

In order to illustrate the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, which are of great significance to the art For those of ordinary skill, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the structural representation of a kind of traditional net-stretching device shown according to the related art;

2 is a schematic structural diagram of a net stretching device according to an exemplary embodiment;

FIG. 3 is a schematic structural diagram of a stretched net structure according to an exemplary embodiment;

Fig. 4 is a partial structural schematic diagram of a net stretching device according to an exemplary embodiment;

Fig. 5 is a partial structural schematic diagram of still another net stretching device according to an exemplary embodiment;

6 is a schematic structural diagram of yet another net stretching device according to an exemplary embodiment;

FIG. 7 is a schematic structural diagram of yet another stretched net structure according to an exemplary embodiment;

FIG. 8 is a flow chart of a method for spreading a net according to an exemplary embodiment;

FIG. 9 is a flow chart of yet another method for spreading a net according to an exemplary embodiment;

Fig. 10 is a partial top-view structural schematic diagram of a frame according to an exemplary embodiment;

FIG. 11 is a deformation heat map of a frame according to an exemplary embodiment;

FIG. 12 is a partial top-view structural schematic diagram of still another frame according to an exemplary embodiment;

FIG. 13 is a deformation heat map of yet another frame according to an exemplary embodiment;

FIG. 14 is a deformation curve diagram of a frame according to an exemplary embodiment;

FIG. 15 is a difference diagram of a deformation curve of a frame according to an exemplary embodiment;

Fig. 16 is a partial top-view structural schematic diagram of another frame according to an exemplary embodiment;

FIG. 17 is a deformation heat map of another frame according to an exemplary embodiment;

FIG. 18 is a deformation curve diagram of yet another frame according to an exemplary embodiment;

Fig. 19 is a difference diagram of a deformation curve of a frame according to an exemplary embodiment.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. . Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 , FIG. 1 is a schematic structural diagram of a traditional net stretching device 0 . The net stretching device 0 includes a plurality of clips 01 . During the FMM netting process, the plurality of clips are the CF applied by the frame 2 . The position of the frame is fixed, and each time a FMM strip is welded, the tensile force on the frame 2 changes. Therefore, the net tensioning device cannot effectively balance the tensile force generated by the welded FMM strip on the frame, resulting in the final FMM accuracy. lower.

An embodiment of the present invention provides a net stretching device 1. As shown in FIG. 2, the net stretching device 1 includes:

There are two sets of stretched net structure groups 11 opposite to each other, and each set of stretched net structure groups 11 includes at least one stretched net structure 111 . For example, each set of web structure groups may include at least two web structures arranged in an array along the length direction L1 of the target side face w. FIG. 2 takes an example in which each set of stretched net structures includes 3 stretched net structures. As shown in FIG. 3 , each netting structure 111 includes a fixing frame 111a and a rotatable roller 111b arranged on the fixing frame 111a. The target side W of the frame 2 with the FMM strips, as shown in FIG. 2 , the target side W is the side on which the FMM strips are arranged.

The sliding structures 12 are correspondingly connected to the fixing frame 111a of each of the two netting structure groups 11. Each sliding structure 12 is configured to drive the corresponding roller 111b to slide on the target side W. Optionally, each sliding structure can be an integral structure with the corresponding fixing frame, that is, the two are produced in an integral form during the preparation and production process; each sliding structure can also be detachably connected with the corresponding fixing frame. , that is, the two are produced separately during the preparation and production process, and are connected by a detachable structure. When the sliding structure is detachably connected with the corresponding fixing frame, the flexibility of using the device of the net stretching device can be improved. Optionally, each sliding structure is further provided with a braking structure for controlling the sliding structure to stop sliding when the sliding structure slides to the target position.

When the side surfaces of the rollers 111b of the two sets of web structures 11 slide relative to the target side W, the sides of the rollers 111b of the two sets of web structures 11 apply opposing forces to different positions of the target side W.

To sum up, in the net-stretching device provided by the present invention, during the net-stretching process, since the device includes two sets of net-stretching structure groups arranged oppositely, the sliding structure of each net-stretching structure can drive the rollers through the fixed frame connected to it. The shaft slides on the target side of the frame, thereby exerting opposing force on the frame at different positions on the target side. Since the position where the opposing force is applied is flexible and variable, the tensile force generated by the FMM strip on the frame when the FMM strip is welded is effectively balanced. , which improves the accuracy of the final formed FMM.

In the embodiment of the present invention, the shape of the main body of the fixing frame can be various. For example, the main body of the fixing frame can be an L-shaped structure, a U-shaped structure or a ring structure, as long as it is ensured that the side surface of the roller can protrude from the fixing frame. The main body of the frame can be in contact with the side of the target and slide relative to the side of the target.

Illustratively, the embodiment of the present invention takes the main body of the fixing frame as a U-shaped structure as an example, and the connection manner of structures of other shapes may refer to the U-shaped structure, which will not be repeated in the embodiment of the present invention. When the main body of the fixing frame is a U-shaped structure, please refer to FIG. 4 , the fixing frame includes the U-shaped structure X, the U-shaped structure X includes a first strip-shaped structure x1, and the two ends of the first strip-shaped structure x1 are arranged in parallel The two second bar structures x2. At this time, there can be various connection modes between the roller and the U-shaped structure. The embodiment of the present invention takes the following two connection modes as examples to illustrate:

For the first connection method, please refer to FIG. 4 . FIG. 4 is a schematic diagram of a part of the structure of the web stretching device provided by the embodiment of the present invention. During the web-stretching process, when the roller 111b in the web-stretching structure slides on the target side W of the frame, the second bar-shaped structure x2 and the two ends of the roller 111b move relative to each other, which is shown as the lateral edge of the roller 111b The target side W of the frame slides.

For the first connection method, please refer to FIG. 5 . FIG. 5 is a schematic diagram of a partial structure of the web stretching device provided by the embodiment of the present invention. The roller 111b includes a fixed axis y1 and a movable ring y2. The inner sides of the two strip-shaped structures x2 are respectively fixedly connected, and the moving ring y2 is sleeved outside the fixed axis y1 and can rotate relative to the fixed axis y1. During the web-stretching process, when the roller 111b in the web-stretching structure slides on the target side W of the frame, the fixed axis y1 and the moving ring y2 move relative to each other, and the side of the roller 111b is the side of the moving ring y2. Swipe along the target side W of the frame

Optionally, please refer to FIG. 4 and FIG. 5 , in each netting structure, the fixing frame 111a further includes a supporting frame Z, and the supporting frame Z is fixedly connected to the outer side of at least one strip-shaped structure of the U-shaped structure X, each The fixed frame 111a is connected with the corresponding sliding structure 12 through the support frame Z. It should be noted that, in the embodiment of the present invention, the support frame Z is fixedly connected to the outer side of the first bar-shaped structure x1 of the U-shaped structure X as an example for description, and the support frame Z can also be fixedly connected to the outer side of the second bar-shaped structure x2. , which is not limited in the present invention.

Further, as shown in FIG. 6 , the netting device 1 may also include:

A moving assembly 13 correspondingly connected to the fixed frame 111a of each of the two netting structure groups 11, each moving assembly 13 is configured to drive the corresponding roller 111b in the direction L2 perpendicular to the target side surface W move. By driving the corresponding roller 111b to move in the direction L2 perpendicular to the target side surface W, the moving component 13 can change the opposing force exerted by the side surface of the roller on the target side surface. Optionally, each moving assembly is further provided with a braking structure for controlling the moving assembly to stop sliding when the moving assembly moves to the target position.

It should be noted that the sliding structure 12 and the moving assembly 13 corresponding to each netting structure 111 may be an integral structure, and the two in the example may be realized by a universal wheel. Further, when the two are universal wheels, a braking structure can be set on the universal wheel. When the universal wheel moves to the target position, the braking structure works to control the universal wheel to stop moving, so that the universal wheel can be stopped. It is precisely fixed at the target position to avoid the movement of the mesh structure connected to it.

To sum up, in the net-stretching device provided by the present invention, during the net-stretching process, since the device includes two sets of net-stretching structure groups arranged oppositely, the sliding structure of each net-stretching structure can drive the rollers through the fixed frame connected to it. The shaft slides on the target side of the frame, thereby exerting opposing force on the frame at different positions on the target side. Since the position where the opposing force is applied is flexible and variable, the tensile force generated by the FMM strip on the frame when the FMM strip is welded is effectively balanced. , which improves the accuracy of the final formed FMM.

An embodiment of the present invention provides a net structure 111. As shown in FIG. 3, the net structure 111 includes:

The fixing frame 111a, and the rotatable roller 111b provided on the fixing frame 111a, the side surface of the roller 111b is configured to snap to the target side of the frame formed with the FMM strip, and the target side is the side on which the FMM strip is arranged. Each sliding structure is integrally formed with the corresponding fixing frame, or each sliding structure is detachably connected to the corresponding fixing frame.

For the structure of the fixing frame, reference may be made to the structure of the fixing frame in the above-mentioned net stretching device, which is not repeated in this embodiment of the present invention.

Further, as shown in FIG. 7 , the net structure 111 may further include:

A sliding structure 111c connected to the fixing frame 111a, the sliding structure 111c is configured so that the roller 111b slides on the side of the target.

Optionally, as shown in Figure 7, the net-stretching device further includes:

A moving assembly 111d connected to the fixing frame 111a, the moving assembly 111d is configured to drive the roller 111b to move in a direction perpendicular to the side surface of the target.

Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of each component of the above-described net-stretching structure can be referred to the corresponding processes in the foregoing net-stretching device embodiments, which will not be repeated here. .

To sum up, in the net-stretching structure provided by the present invention, during the net-stretching process, since the sliding structure of each net-stretching structure can drive the roller to slide on the target side of the frame through the fixed frame connected to it, so that the sliding structure on the target side can slide. Different positions exert opposing force on the frame. Since the position where the opposing force is exerted is flexible and variable, the tensile force generated by the FMM strip on the frame when the FMM strip is welded is effectively balanced, and the accuracy of the final formed FMM is improved.

An embodiment of the present invention provides a method for stretching a net, and the method can be applied to the net stretching device provided in the above-mentioned embodiment. As shown in FIG. 8 , the method includes:

Step 301, the frame that is formed with the support mask is clamped in the two sets of web-stretching structure groups that are arranged oppositely of the web-stretching device, so that the sides of the rollers of the two sets of web-stretching structure groups are the sides of the frame to be formed of the FMM strip. The opposing force is applied to the target side, which is the side on which the FMM strip is to be arranged.

Step 302: After welding one FMM strip each time, control the sliding structure of the target mesh structure to drive the corresponding roller to slide to the specified position on the side of the target, so that the side of the corresponding roller exerts a resisting force for the specified position.

To sum up, in the net-stretching method provided by the present invention, during the net-stretching process, the sliding structure of each net-stretching structure can drive the roller to slide on the target side of the frame through the fixed frame connected to it, so that the different sides of the target can be slid. The position exerts an opposing force on the frame. Since the position where the opposing force is applied is flexible and variable, the tensile force generated by the FMM strip on the frame when the FMM strip is welded is effectively balanced, and the accuracy of the final formed FMM is improved.

An embodiment of the present invention provides a method for stretching a net, and the method can be applied to the net stretching device provided in the above-mentioned embodiment. As shown in FIG. 9 , the method includes:

Step 401: Perform simulation of the network opening process to obtain simulation results.

Before executing the web-stretching process, the web-stretching process is generally simulated by a control device, and a simulation result is obtained, so as to guide the subsequent web-stretching process based on the simulation result. Since the meshing process is a welding process for multiple FMM strips, the simulation process is also a simulation of the welding process for multiple FMM strips. For example, the simulation result may include: after welding one FMM strip, the The number n of target web structures to be moved in the web tensioning device, the specified position t to which each target web structure needs to be moved, and the target opposing force f exerted by each target web structure on the target side at its specified position. Optionally, the control device may be a data processing device such as a computer. Different FMM strips can be distinguished by their welding positions. In this simulation result, each FMM strip can be identified by a coordinate value representing its welding position, and the coordinate value can be in the plane coordinate system established in the plane where the frame is located. Coordinate value.

Based on the simulation results, the mesh can be directly moved to the specified position after each FMM strip is welded, and the target mesh can be controlled to apply the target resistance to the side of the target without manual debugging. On the basis of the tensile force generated by the strip to the frame, the efficiency of the net is improved.

In step 402, the frame formed with the supporting mask is clamped in the two sets of web-stretching structure groups that are oppositely arranged on the web-stretching device, so that the sides of the rollers of the two sets of web-stretching structure groups are the sides of the frame to be formed of the FMM strip. The opposing force is applied to the target side, which is the side on which the FMM strip is to be arranged.

After the support mask is welded on the frame, the frame on which the support mask is formed can be clamped into two sets of screen-stretching structure groups arranged oppositely of the screen-stretching device. At this time, referring to FIG. The moving component 13 in the net structure group 11 can drive the roller to move in the direction L2 perpendicular to the target side surface, so that the side surface of the roller roller exerts a certain resistance force for the frame, wherein the target side surface is the side surface of the FMM strip to be arranged .

In the embodiment of the present invention, the net-stretching device has two states, one is an initial state, and the other is a moving state. For the net-stretching device in the initial state, each net-stretching structure is located at a pre-specified initial position, and this At the same time, the multiple net structures of each group of net structure groups are arranged at equal intervals; the position of at least one net structure of the net stretch device in the moving state is no longer the initial position, but moved to the target side according to the specific situation. Specify the location.

During the time period from the welding of the support mask on the frame to the completion of the welding of the first FMM strip, the screen opening device can be in the initial state, which can ensure that the frame formed with the support mask is not welded before the first FMM strip is welded. Deformation occurs; after the first FMM strip is welded, the netting device is in a moving state to provide different resistance to the frame for different periods of time.

Step 403: Based on the simulation results, after each welding of an FMM strip, control the sliding structure of the target mesh structure to drive the corresponding roller to slide to the specified position on the side of the target, so that the side of the corresponding roller acts as a countermeasure for the specified position. force.

After the frame formed with the supporting mask is clamped in the netting device, the welding of the FMM strips can be started. As described in step 401, different FMM strips can be distinguished by their welding positions, then after each welding FMM strip, the control device can detect the welding position of the FMM strip on the frame through the detection device (for example, obtain the welding position in The coordinate value in the plane coordinate system established in the plane where the frame is located), query the pre-acquired simulation result based on the welding position, and obtain the query result, the query result includes: after welding the FMM strip, the netting device needs to move The number n of target net structures, the specified position t to which each target net structure needs to be moved, and the target confrontation force f that each target net structure exerts on the side of the target at its specified position. The control device can control the target web-stretching structure in the web-stretching device to adjust its sliding structure to move according to the query result, so that it drives the corresponding roller to slide to the specified position on the side of the target, so that the side of the corresponding roller acts against the specified position. force.

Step 404: Adjust the opposing force exerted by the side of the corresponding roller on the specified position.

After the target mesh structure slides to the designated position, the control device adjusts the opposing force exerted by the target mesh structure at the designated position on the target side of the frame according to the query result, so that the adjusted opposing force is the target opposing force f, which can ensure After welding the FMM strip, the tensile force generated by the FMM strip on the frame is equal to the opposing force exerted by the tension mesh structure on the target side of the frame, which effectively reduces the deformation of the frame and ensures the accuracy of the final FMM.

Optionally, the control device can control the movement of the moving component of the target netting structure to adjust the opposing force applied by the target netting structure to the target side of the frame, for example, control the moving component to move close to the target side (that is, along the vertical target). side, and move in the direction of the target side), the roller of the target tensioning structure presses the target side, which can increase the resistance applied by the target tensioning structure to the target side of the frame; control the moving component to move away from the target side (that is, along the Vertical to the target side and moving away from the target side), the contact between the rollers of the target web structure and the target side is reduced, which can reduce the opposing force exerted by the target web structure on the target side of the frame.

Step 405 , when all the FMM strips are welded, remove the netting device.

For example, as shown in FIG. 10 , which is a schematic top view of a frame, it is assumed that two FMM strips are welded at positions J and K of the frame. At this time, the two FMM strips produce asymmetrical effects on the frame. The distributed SF causes the deformation of the frame. The deformation heat map of the frame is shown in Figure 11. The deformation heat map is used to reflect the frame deformation amount caused by the SF after welding the FMM strip through the thermal effect. In this deformation heat map, the larger the deformation of the frame, the darker the color corresponding to the thermal effect; the smaller the deformation of the frame, the lighter the color corresponding to the thermal effect. It can be seen from Figure 11 that the colors on the frame are distributed asymmetrically. Therefore, the frame deformation caused by SF is distributed asymmetrically, and the SF received by the frame is also distributed asymmetrically. 10 and 11 use the same plane coordinate system, wherein X represents the horizontal axis direction of the plane coordinate system, and Y represents the vertical axis direction of the plane coordinate system.

If the existing net-stretching device is used to balance the SF, as shown in Figure 12, Figure 12 is a schematic top view of a frame. CF can only be applied at the 1/4, 2/4 and 3/4 positions on the side of the frame target, that is, apply CF at M1, M2 and M3 as shown in Figure 12, please refer to Figure 13, Figure 13 reflects the CF Deformation heatmap of the resulting frame deformation. It can be seen from Figure 13 that the colors on the frame are distributed symmetrically, then the frame deformation caused by CF is symmetrically distributed, so the CF received by the frame is also symmetrically distributed. 12 and 13 use the same plane coordinate system, wherein X represents the horizontal axis direction of the plane coordinate system, and Y represents the vertical axis direction of the plane coordinate system.

Fig. 14 shows the deformation curve corresponding to Fig. 12, which reflects the deformation caused by SF and CF to the frame. Among them, the horizontal axis represents the deformation position of the frame, and the vertical axis represents the deformation amount of the corresponding position of the frame. It can be seen from Figure 14 that using the existing net stretching device, the deformation curves of SF and CF on the frame caused by the deformation do not completely overlap. Fig. 15 shows the difference diagram of the deformation curve of SF and the deformation curve of CF in Fig. 14, wherein the horizontal axis represents the deformation position of the frame, and the vertical axis represents the deformation amount difference caused by the corresponding position of the frame CF and SF to the frame, The highest peak position in Fig. 15 represents the maximum difference between the frame deformation caused by the CF applied by the existing net stretching device and the SF generated by the FMM strip to the target position of the frame. It can be seen from this that the existing net stretching device still It can cause a deformation of 8.00×10 ^-4 mm to the frame.

Continue to take the example shown in FIG. 10 where two FMM strips are welded at the J and K positions of the frame. If the net stretching device provided by the embodiment of the present invention is used to balance the SF, the control device of the net stretching device will According to the position J and position K of the two welded FMM strips, the target net structure is controlled to adjust the position and the applied CF. As shown in Figure 16, the control device determines a set of stretch net structures based on the simulation results as the target stretch Net structure, move multiple target net structures at the same time, and move to the specified positions N1, N2 and N3, instead of 1/4, 2/4, 3/4 on the side of the frame target. Please refer to Figure 17 for the corresponding deformation heat map. It can be seen from Figure 17 that the color of the frame is distributed asymmetrically. Therefore, the deformation of the frame caused by CF is distributed asymmetrically. At this time, the CF received by the frame is distributed asymmetrically. 16 and 17 use the same plane coordinate system, wherein X represents the horizontal axis direction of the plane coordinate system, and Y represents the vertical axis direction of the plane coordinate system.

Fig. 18 shows the deformation curve corresponding to Fig. 16, which reflects the deformation caused by SF and CF to the frame, wherein the horizontal axis represents the deformation position of the frame, and the vertical axis represents the deformation amount of the corresponding position of the frame. 18 It can be seen that, using the net stretching device provided by the embodiment of the present invention, the deformation curves of the frame caused by SF and CF almost completely overlap. Fig. 19 shows the difference diagram of the deformation curve of SF and the deformation curve of CF in Fig. 18, wherein the horizontal axis represents the deformation position of the frame, and the vertical axis represents the deformation difference of the frame caused by the corresponding positions CF and SF of the frame. The highest peak position in 19 represents the maximum difference between the frame deformation caused by the CF applied by the web tensioning device provided by the embodiment of the present invention and the SF generated by the FMM strip to the target position of the frame. At this time, it can be seen from this that the present invention implements The deformation device provided in the example only deforms the frame by 2.00×10 ^-4 mm.

It can be seen from FIGS. 10 to 19 that after welding the same number of FMM strips to the frame, the CF applied by the net tensioning device provided by the embodiment of the present invention and the SF generated by the FMM strips to the target position of the frame are offset (also called equivalent) Then, the resulting frame deformation is 2.00×10 ^-4 mm. After the CF applied by the existing net tensioning device and the SF generated by the FMM strip on the target position of the frame are cancelled, the resulting frame deformation is 8.00×10 ^-4 mm. The deformation of 2.00×10 ^-4 mm is obviously smaller than 8.00×10 ^-4 mm. It can be seen that the deformation of the frame caused by the CF application method of the net tensioning device provided in the embodiment of the present invention can be almost completely equivalent to that caused by the SF generated by the FMM strip. The deformation of the frame improves the accuracy of the final formed FMM.

To sum up, the method for stretching the net provided by the embodiment of the present invention can control the moving component to drive the roller to move in the direction perpendicular to the target side of the frame before the net is stretched to apply a certain resistance force to the frame to ensure that the frame is before the net is stretched. No deformation occurs, and at the same time, in the process of stretching the net, the sliding structure in the netting structure can be controlled to drive the roller to move on the target side where the FMM strips are welded through the fixed frame connected to it, and confront the frame at different positions on the target side. It effectively balances the tensile force generated by the FMM strip on the frame when the FMM strip is welded, and improves the final formed FMM precision.

It should be noted that in the embodiment of the present invention, the frames in FIGS. 1 , 2 and 6 are all provided with at least a support mask, and may also be provided with at least one FMM strip, but they are not drawn, which does not mean that the frame There is no reticle in .

Other embodiments of the invention will readily suggest themselves to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or conventional techniques in the art not disclosed by the invention . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the invention being indicated by the claims.

It should be understood that the present invention is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims (9)

1. a netting device, is characterized in that, comprises: There are two sets of netting structure groups oppositely arranged, each set of said netting structure group includes at least one netting structure, each said netting structure includes a fixed frame, and a rotatable roller arranged on said fixed frame, The side surfaces of the rollers of the two sets of netting structure groups are configured to be snap-connected to the target side surfaces of the frame formed with the fine metal mask FMM strips, and the target side surfaces are the side surfaces on which the FMM strips are arranged; a sliding structure correspondingly connected with the fixing frame of each of the two stretched net structures in the two sets of stretched net structures, each of the sliding structures is configured to drive a corresponding roller to slide on the side of the target; When the side surfaces of the rollers of the two groups of web-stretching structures slide relative to the target side surfaces, the side surfaces of the rollers of the two groups of web-stretching structure groups exert opposing forces for different positions of the target side surfaces; The netting device also includes: A moving assembly correspondingly connected to the fixing frame of each of the two netting structure groups, each of the moving assemblies is configured to drive the roller to move in a direction perpendicular to the side surface of the target. 2. The netting device according to claim 1, characterized in that, The fixing frame includes a U-shaped structure, the U-shaped structure includes a first strip-shaped structure, and two second strip-shaped structures located at both ends of the first strip-shaped structure and arranged in parallel, two of the rollers. The ends are respectively movably connected with the inner sides of the two second strip structures. 3. The net-stretching device according to claim 1, characterized in that, The fixing frame includes a U-shaped structure, the U-shaped structure includes a first strip-shaped structure, and two second strip-shaped structures are located at both ends of the first strip-shaped structure and are arranged in parallel, and the roller includes a fixed structure. A shaft and a moving ring, both ends of the fixed shaft are fixedly connected to the inner sides of the two second strip structures respectively, and the moving ring is sleeved outside the fixed shaft and can rotate relative to the fixed shaft. 4. The netting device according to claim 2 or 3, characterized in that, In each of the netting structures, the fixing frame further includes a supporting frame, the supporting frame is fixedly connected with the outer side of at least one strip-shaped structure of the U-shaped structure, and each fixing frame passes through the supporting frame The frame is connected with the corresponding sliding structure. 5. The net stretching device according to claim 1, characterized in that, Each group of the stretched net structure group includes at least two stretched net structures arranged in an array along the length direction of the target side surface. 6. The net stretching device according to claim 1, characterized in that, Each of the sliding structures is an integral structure with the corresponding fixing frame, or, Each of the sliding structures is detachably connected to the corresponding fixing frame. 7. A netting structure, wherein the netting structure is applied in the netting device according to any one of claims 1 to 6, and the netting structure comprises: A fixing frame, and a rotatable roller provided on the fixing frame, the side surface of the roller is configured to be snap-fitted to the target side surface of the frame on which the FMM strip is formed, and the target side surface is the side surface on which the FMM strip is arranged. 8. The stretched net structure according to claim 7, wherein the stretched net structure further comprises: A sliding structure connected with the fixing frame, the sliding structure is configured to drive a corresponding roller to slide on the side of the target. 9. A method for stretching a net, wherein the method is applied to the net stretching device according to any one of claims 1 to 6, and the method comprises: The frame formed with the supporting reticle is clamped in the two sets of web-stretching structure groups that are oppositely arranged on the web-stretching device, so that the sides of the rollers of the two sets of web-stretching structure groups are the targets to be formed into the frames of the FMM strips The opposing force is applied on the side, and the target side is the side on which the FMM strip is to be arranged; After welding one FMM strip each time, control the sliding structure of the target web structure to drive the corresponding roller to slide to the specified position on the side of the target, and adjust the corresponding roller by controlling the movement of the moving component of the target web structure The side of the roller exerts a resistive force for the specified position.

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