CN112355663B - Efficient polishing-free automatic pipe making machine and pipe making method - Google Patents
Efficient polishing-free automatic pipe making machine and pipe making method Download PDFInfo
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- CN112355663B CN112355663B CN202110044627.7A CN202110044627A CN112355663B CN 112355663 B CN112355663 B CN 112355663B CN 202110044627 A CN202110044627 A CN 202110044627A CN 112355663 B CN112355663 B CN 112355663B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
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Abstract
The invention discloses a high-efficiency polishing-free automatic pipe making machine and a pipe making method, wherein the pipe making machine comprises a steel belt unreeling device, a steel belt flattening device, a steel belt folding device, a folding welding device, a steel pipe shaping device and a shaping sizing device which are sequentially arranged, the two side edges of a flattened steel belt are pressed into right-angle secondary bent edges by the steel belt folding device, the steel belt folding device presses the steel belt to enable the two side edges of the steel belt to be gradually bent upwards and then folded, and the two side edges of the steel belt of the folding welding device are welded to form a steel pipe. The invention adopts the pipe making process to gradually press the two edges of the steel belt into the groove shape, then the steel belt is folded, the two edges are positioned in the groove body after folding, when in use, the welding line can be shielded in the groove, and the use appearance is not influenced. Therefore, the welding line does not need to be polished, and the production efficiency and the problems caused by polishing the welding line can be greatly improved. The surface of the pipe has no welding seam and no polishing trace, the surface state can be smooth and flat easily, and the product quality is improved.
Description
Technical Field
The invention relates to the field of special-shaped pipe production and processing, in particular to an efficient polishing-free automatic pipe making machine and a pipe making method.
Background
When a traditional stainless steel groove pipe is used for manufacturing the pipe, a groove shape is formed in the center of a steel belt firstly, then the steel belt is curled, the groove-shaped steel pipe is manufactured after welding, a welding seam of the pipe is arranged on the outer surface of a pipe body, the welding seam is uneven, the color of the welding seam is different from that of the original steel material, and therefore the welding seam must be ground and polished. However, the pipe welding process is accompanied by a plurality of uncertain factors, the welding seam is uneven, and some parts cannot be ground during grinding, so that the local part has obvious concave-convex feeling and obvious grinding traces, the quality of the product is extremely influenced, and secondary grinding is required. However, the secondary grinding only can grind the redundant part and the scratched part on the surface, and the state of the unevenness of the surface of the pipe cannot be repaired, so that the groove-shaped pipe produced by the traditional pipe making machine is low in quality and low in production efficiency.
Disclosure of Invention
The invention aims to provide a high-efficiency grinding-free automatic pipe making machine and a pipe making method which do not need grinding, have high quality of a formed pipe and high production efficiency.
According to one aspect of the invention, the efficient polishing-free automatic pipe making machine comprises a steel belt unreeling device, a steel belt flattening device, a steel belt flanging device, a steel belt folding device, a folding welding device, a steel pipe shaping device and a shaping sizing device which are sequentially arranged, wherein the steel belt unreeling device unreels a steel belt and flattens the steel belt through the steel belt flattening device, the steel belt flanging device gradually presses two side edges of the flattened steel belt into right-angle secondary bending edges, the steel belt folding device presses the steel belt to enable two side edges of the steel belt to be gradually bent upwards and then folded, the folding welding device welds the two side edges of the folded steel belt to form a steel pipe with a welding seam, and the steel pipe shaping device and the shaping sizing device press the steel pipe into a required section shape.
In some embodiments, the secondary bending edges on both sides of the steel strip form a groove on one side of the steel tube after welding, and the weld is located in the groove.
In some embodiments, a weld flattening device is further included, the weld flattening device being located between the fold welding device and the steel pipe shaping device.
In some embodiments, the steel strip edge folding device comprises a support, an edge folding upper roller, an edge folding lower roller, an edge folding upper roller shaft and an edge folding lower roller shaft, wherein the edge folding upper roller shaft and the edge folding lower roller shaft are both mounted on the support, the edge folding upper roller is sleeved outside the edge folding upper roller shaft and fixedly connected with the edge folding upper roller shaft, the edge folding lower roller is sleeved outside the edge folding lower roller shaft and fixedly connected with the edge folding lower roller shaft, the edge folding upper roller is opposite to the edge folding lower roller, concave portions which are bent inwards are arranged at two ends of the edge folding upper roller, and convex portions which are bent outwards are arranged at two ends of.
In some embodiments, the steel strip folding device comprises a horizontal roller press and a vertical roller press, the vertical roller press is located at the output end of the horizontal roller press, the horizontal roller press is provided with a horizontal upper roller and a horizontal lower roller, the horizontal upper roller is matched with the horizontal lower roller, the middle of the horizontal upper roller is outwards protruded in an arc shape, the middle of the horizontal lower roller is inwards protruded in an arc shape, the vertical roller press is provided with two parallel vertical rollers, and the middle of the vertical roller is inwards protruded in an arc shape.
In some embodiments, the steel strip folding device further comprises a first integration device, a second integration device and a third integration device which are sequentially arranged, the first integration device comprises a first upper integration roller and a first lower integration roller, both ends of the first upper integration roller are provided with groove edge integration flanges, and the middle part of the first lower integration roller is provided with a square concave ring.
In some embodiments, the second integration device comprises a second integration upper roller and a second integration lower roller, the second integration upper roller is provided with a first step, a second step and a third step, the diameters of which are sequentially increased from the end part to the center, the first step and the second step are respectively arranged at two sides of the third step and are symmetrically distributed at the two sides of the third step, the middle part of the second integration lower roller is provided with a square inner concave ring, the third integration device comprises a third integration upper roller and a third integration lower roller, the third integration upper roller is provided with a seam aligning flange and a blank pressing step, the seam aligning flange is arranged at the middle part of the third integration upper roller, the blank pressing step is arranged at two sides of the seam aligning flange and is symmetrically distributed at the two sides of the seam aligning flange, and the middle part of the third integration lower roller is provided with a square inner concave ring.
In some embodiments, the steel pipe shaping device is provided with an upper shaping roller and a lower shaping roller, two first square flanges are respectively arranged at two ends of the upper shaping roller, a second square flange is arranged in the middle of the upper shaping roller, two square concave rings are formed between the first square flanges and the second square flanges, and a square concave ring is arranged in the middle of the lower shaping roller.
According to one aspect of the invention, an efficient grinding-free automatic pipe manufacturing method is provided, which comprises the following steps:
s1, after the steel strip is unreeled by the steel strip unreeling device, the steel strip is flattened by the steel strip flattening device;
s2, pressing two side edges of the flattened steel strip into right-angle secondary folding edges through a steel strip folding device;
s3, pressing the middle part of the steel belt by a horizontal rolling machine of the steel belt folding device to enable the middle part of the steel belt to be concave and the edges of the two sides to be turned upwards, and pressing the edges of the two sides of the steel belt by a vertical rolling machine of the steel belt folding device to be folded relatively;
s4, welding the two folded side edges of the steel strip by a folding welding device to form a steel pipe;
and S5, the steel pipe shaping device performs primary shaping on the shape of the steel pipe, and the shaping and sizing device further shapes the shape of the steel pipe to reach a preset shape.
In some embodiments, the step S3 further includes the following steps: the first integration device of the steel strip folding device presses the corner part of the secondary folding edge to reduce the corner radian of the secondary folding edge, the second integration device of the steel strip folding device presses the secondary folding edge of the steel strip to enable the two side edges of the steel strip to be positioned on the same plane, and the third integration device of the steel strip folding device further arranges the two side edges of the steel strip and enables the two side edges to be folded relatively so as to facilitate welding.
The invention has the beneficial effects that: the adopted pipe making process comprises the steps of gradually pressing two edges of a steel belt into a bent secondary folded edge shape, and then folding the steel belt. After the folding, the two side edges are positioned in the groove body, and after welding, the welding seam is also positioned in the groove body. When the glass handrail is installed or installed for other purposes at the later stage, the welding seam can be shielded in the groove, and the use appearance of the product is not influenced. Therefore, the welding line does not need to be polished, the appearance of a product is not influenced, the production efficiency can be greatly improved, and various bad problems caused by polishing the welding line are solved. Meanwhile, the surface of the pipe has no welding seam or polishing trace, and the surface state of the finished steel pipe can be easily smooth and flat through later shaping, so that the product quality is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of an efficient sanding-free automatic pipe making machine according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a portion of a high efficiency, sanding-free automatic pipe making machine;
FIG. 3 is a schematic structural view of a steel strip edge folding device of the efficient grinding-free automatic pipe making machine;
FIG. 4 is a schematic structural diagram of an upper folding roll shaft and a lower folding roll shaft of the steel strip folding device;
FIG. 5 is a schematic cross-sectional view of upper and lower horizontal rolls of a horizontal roll press of the steel strip folding apparatus;
FIG. 6 is a schematic structural view of a vertical roller press of a high-efficiency sanding-free automatic pipe making machine;
FIG. 7 is a schematic cross-sectional view of the first, second and third integration devices of the steel strip folding device;
FIG. 8 is a schematic view of a die fit cross section of a weld flattening apparatus;
FIG. 9 is a schematic cross-sectional view of the mold assembly of the steel pipe shaping apparatus;
FIG. 10 is a schematic cross-sectional view of the finished steel pipe;
FIG. 11 is a front view of the sizing device;
fig. 12 is a right side view of the sizing device.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Example 1
FIGS. 1-12 schematically illustrate a high efficiency, sanding-free, automatic pipe making machine according to one embodiment of the present invention.
Referring to fig. 1-12, the efficient polishing-free automatic pipe making machine comprises a steel belt unreeling device 1, a steel belt flattening device 2, a steel belt folding device 3, a steel belt folding device 4, a folding welding device 5, a welding seam flattening device 8, a steel pipe shaping device 6, a shaping sizing device 7 and a power transmission device 9 which are sequentially arranged. The steel belt unreeling device 1 is used for installing a steel belt coil and unreeling the steel belt coil, and unreeling is flattened by the steel belt flattening device 2 and then conveyed to the steel belt edge folding device 3. The steel strip edge folding device 3 presses two side edges of the flattened steel strip into right-angle secondary bending edges gradually, the steel strip folding device 4 presses the steel strip to enable the two side edges of the steel strip to be bent upwards gradually and then folded, the folding welding device 5 welds the two side edges of the folded steel strip to form a steel pipe with a welding seam, and the steel pipe shaping device 6 and the shaping sizing device 7 press the steel pipe into a required cross section shape. The output end of the sizing device 7 can also be provided with a synchronous automatic cutting device to cut the steel pipe into required length. The whole system can be automatically controlled by adopting a PLC.
The edges of the two sides of the steel strip are welded to form a square steel tube, the secondary bending edges of the two sides of the steel strip form a groove 101 on one side of the steel tube 10, and referring to fig. 10, the welded seam is located in the center of the bottom in the groove 101. When the later stage is used for the installation of glass handrail, the welding seam can be sheltered from in recess 101, does not influence and uses the outward appearance, therefore the welding seam need not to polish and also can not influence the outward appearance of product. Compared with the prior art, the two systems omit a grinding process and a grinding mechanism, reduce the production cost and improve the production efficiency and the product quality.
The steel strip flattening device 2 is provided with two horizontal rollers which are arranged oppositely up and down, and flattening is carried out between the two horizontal rollers of the steel strip.
Referring to fig. 3, the steel strip hemming device 3 includes a bracket 31, an upper hemming roller 32, a lower hemming roller 33, an upper hemming roller 34, a lower hemming roller 35, a lifting screw 36, and a lifting mount 37. The two brackets 31 are provided, and both ends of the hemming upper roller shaft 34 and the hemming lower roller shaft 35 are mounted to the brackets 31 and supported by the brackets 31. The lifting screw 36 penetrates through the upper end of the bracket 31 and is in threaded fit with the bracket, and the lifting mounting seat 37 is mounted in the bracket 31 and is in sliding connection with the bracket 31. The lower end of the lifting screw 36 is rotatably connected with the lifting mounting seat 37, and the end of the hemming upper roller 34 is rotatably connected with the lifting mounting seat 37 through a bearing. Therefore, the lifting mounting seat 37 can be driven to move up and down by rotating the lifting screw 36, and the upper hemming roller shaft 34 and the upper hemming roller 32 can be driven to move up and down to adjust the distance between the upper hemming roller 32 and the lower hemming roller 33. One end of the hemming lower roller shaft 35 is rotatably connected to one of the brackets 31 through a bearing, and the other end of the hemming lower roller shaft 35 penetrates the other bracket 31 and is connected to the power transmission device 9.
The upper edge folding roller 32 is sleeved outside the upper edge folding roller shaft 34 and is fixedly connected with the upper edge folding roller shaft 34, and the lower edge folding roller 33 is sleeved outside the lower edge folding roller shaft 35 and is fixedly connected with the lower edge folding roller shaft 35. Referring to fig. 4, the upper hemming roller 32 is opposite to the lower hemming roller 33, both ends of the upper hemming roller 32 are provided with inward-bent recesses 321, both ends of the lower hemming roller 33 are provided with outward-bent protrusions 331, and the recesses 321 are opposite to the protrusions 331. The steel strip flanging device 3 is provided with five groups, and the bending angles of the concave parts 321 and the convex parts 331 at the two ends of the upper flanging roller 32 and the lower flanging roller 33 of the five groups of steel strip flanging device 3 are gradually transited from 45 degrees to 90 degrees. Thus, the upper hemming roller 32 and the lower hemming roller 33 can press the steel strip into a secondary bent edge which is bent twice at a right angle of 90 degrees upward.
The steel strip folding device 4 comprises three horizontal roller presses 41 arranged in sequence and three vertical roller presses 42 arranged in sequence, and the vertical roller presses 42 are positioned at the output end of the horizontal roller presses 41. The horizontal roller press 41 is provided with an upper horizontal roller 411 and a lower horizontal roller 412, the upper horizontal roller 411 being engaged with the lower horizontal roller 412. The middle part of the upper horizontal roller 411 is convex outwards in a circular arc shape, and the middle part of the lower horizontal roller 412 is concave inwards in a circular arc shape. Accordingly, the arc-shaped bending radians of the middle portions of the upper and lower horizontal rollers 411 and 412 of the three horizontal roller presses 41 are gradually increased, and referring to fig. 5, the middle portion of the pressed steel strip is bent downward, and the secondary bending edges of the two side edges are tilted upward. Each vertical roller press 42 is provided with two parallel vertical rollers 421, the middle parts of the vertical rollers 421 are arc-shaped and concave, an arc-shaped channel for lateral extrusion is formed between the two vertical rollers 421, and the two side edges of the steel strip are folded towards the middle by lateral extrusion between the two vertical rollers 421. The distance between two parallel vertical rollers 421 of three vertical roller presses 42 arranged in sequence is gradually reduced, so that the steel strip is gradually pressed.
The horizontal roller press 41 further includes a bracket, an upper roller shaft, and a lower roller shaft, which are similar in structure and connection to the corresponding structure of the steel strip hemming device 3. Referring to fig. 6, the vertical roller press 42 further includes a screw 422, a slide 423, a shaft 424, and a mount 425. The mounting seat 425 is provided with a mounting groove 426 with one closed end, two sides of the mounting groove 426 are provided with sliding grooves 427, the screw 422 penetrates through the closed end of the mounting seat 425 and is rotatably connected with the mounting seat 425, one end of the screw 422 is positioned in the mounting groove 426, the other end of the screw 422 extends out of the mounting seat 425, and the other end of the screw 422 can be provided with a handle 428. The sliding block 423 is sleeved outside the screw 422 and is in threaded fit with the screw 422, and two sides of the sliding block 423 are positioned in the sliding grooves 427. The vertical roller 421 is sleeved outside the shaft 424 and is rotatably connected with the shaft 424. The two sliding blocks 423 and the two shaft rods 424 are arranged, two sections of threads in opposite directions are arranged on the screw 422, and the two sections of threads are respectively matched with the two sliding blocks 423. The screw 422 is rotated to drive the sliding blocks 423 to move along the screw 422, and the two sliding blocks 423 can move towards each other or move oppositely through the thread matching in opposite directions to adjust the distance between the two vertical rollers 421.
Referring to fig. 7, the steel strip folding apparatus 4 further includes a first integrating device 43, a second integrating device 44, and a third integrating device 45 arranged in sequence, and the first integrating device 43 includes a first upper integrating roller 431 and a first lower integrating roller 432. Both ends of the first upper integration roller 431 are provided with groove edge integration flanges 433, the groove edge integration flanges 433 are of a sharp-angled annular structure, and the middle part of the first upper integration roller 431 is concave. The first lower integral roller 432 is provided at a middle portion thereof with a square-shaped concave ring 434. Thus, the first upper integrating roller 431 shapes the bent portion of the secondary folded edge, and the bent corner portion is more clearly separated. The first lower integral roller 432 shapes the periphery of the folded steel strip to extrude the round periphery into a square shape.
The second integrating device 44 includes a second integrated upper roller 441 and a second integrated lower roller 442, and the second integrated upper roller 441 is provided with a first step 443, a second step 444 and a third step 445 of annular steps having diameters sequentially increasing from an end portion to a center. The first step 443 and the second step 444 are arranged in two and symmetrically distributed at two sides of the third step 445, when in use, the third step 445 is located between two edges of the steel strip, and the second step 444 presses the side surfaces of the two edges of the steel strip to enable the two side surfaces to be located on the same plane. The second lower integral roller 442 has a square-shaped concave ring at the middle portion thereof, and the second lower integral roller 442 presses the circumferential surface of the steel strip to be more square-shaped.
The third integration device 45 comprises a third integrated upper roller 451 and a third integrated lower roller 452, the third integrated upper roller 451 being provided with a seam aligning flange 453 and a blank-holding step 454. The tacking flange 453 is located at the middle of the third integrated upper roller 451. The edge pressing steps 454 are arranged in two and symmetrically distributed at two sides of the whole seam flange 453, and the width of the whole seam flange 453 is smaller than that of the third step 445. The function of the seaming flanges 453 and the binder step 454 is the same as the second step 444 and the third step 445. The middle part of the third integrated lower roller 452 is provided with a square concave ring.
The other structures of the first integration device 43, the second integration device 44, and the third integration device 45 are similar to those of the horizontal roller press 41. Vertical roller presses are arranged between the first integration device 43 and the second integration device 44 and between the second integration device 44 and the third integration device 45.
The folding welding device 5 is provided with a vertical roller press and a welding device, and the two side edges of the steel strip output from the third steel integration device 45 are folded by the vertical roller press and then welded by the welding device to form a steel pipe. The secondary bending edges on the two sides of the steel strip form a groove 101 on one side of the steel pipe, and the formed steel pipe is conveyed to a welding line flattening device 8 for flattening the welding line.
Referring to fig. 8, the weld flattening device 8 includes an upper weld flattening roller 81 and a lower weld flattening roller 82, a square weld flattening flange 811 is provided in the middle of the upper weld flattening roller 81, and the weld flattening flange 811 extends into the groove 101 to flatten the weld when the weld is not yet cooled. Therefore, the welding seam does not need to be ground.
Referring to fig. 9, the steel pipe shaping device 6 includes an upper shaping roller 61 and a lower shaping roller 62, two first square flanges 611 are respectively provided at both ends of the upper shaping roller 61, and a second square flange 612 is provided at the middle of the upper shaping roller 61. Two square concave rings 613 are formed between the first square flange 611 and the second square flange 612, the second square flange 612 corresponds to the groove 101, and the concave rings 613 correspond to the convex parts on the two sides of the steel pipe groove 101. The middle part of the shaping lower roller 62 is provided with a square concave ring, and the shaping upper roller 61 and the shaping lower roller 62 are matched to form the shape required by the finished steel pipe. The steel pipe shaping device 6 thus shapes the welded steel pipe so that the steel pipe approaches the shape required for the finished steel pipe.
The sizing device 7 may be arranged in two parallel, and referring to fig. 11 and 12, the sizing device 7 includes a sizing die 71, an adjusting and positioning device 72, a sizing die holder 73, a lifting and lowering adjusting device 74, a transverse adjusting device 75, and a mounting seat 76. The sizing die 71 is rotatably connected with the adjusting and positioning device 72, and the adjusting and positioning device 72 is mounted on the sizing die holder 73 and can adjust the position of the sizing die 71. The shaping die holder 73 is connected with a transverse adjusting device 75, the transverse adjusting device 75 is connected with a lifting adjusting device 74, and the lifting adjusting device 74 is installed on an installation seat 76. The adjusting and positioning devices 72 and the sizing dies 71 are arranged in a one-to-one correspondence mode, and the adjusting and positioning devices 72 and the sizing dies 71 are arranged into 4 groups and are arranged in an annular mode.
The reforming die holder 73 includes an annular entrance 732 and a mounting seat 733. The annular inlet 732 is located at one end of the mounting seat 733. The mounting seats 733 are provided in 4 numbers and correspond one-to-one to the adjusting and positioning device 72 and the sizing die 71.
The sizing and shaping mold 71 comprises an upper mold 711, a lower mold 712 and two side molds 713 which are annularly distributed, wherein the middle part of the upper mold 711 is provided with a square flange matched with the groove 101, and the peripheral surfaces of the lower mold 712 and the two side molds 713 are flat surfaces.
The adjusting and positioning device 72 is mounted on the mounting support 733, and the adjusting and positioning device 72 includes a mold mounting shaft 721, an adjusting slider 722, an adjusting screw 723 and a fixing block 724. One end of the die attachment shaft 721 is rotatably connected to the sizing die 71, and the sizing die 71 rotates along with the movement of the steel pipe as the steel pipe passes through. One end of the die mounting shaft 721 penetrates through the adjusting slider 722 and is screw-fitted to the adjusting slider 722, and the axial position of the sizing die 71 can be adjusted by rotating the die mounting shaft 721. The adjusting slide block 722 is slidably connected with the shaping die holder 73, and the fixed block 724 is fixedly connected with the shaping die holder 73. One end of the adjusting screw rod 723 is movably sleeved with the adjusting slider 722, and the other end of the adjusting screw rod 723 penetrates through the fixed block 724 and is in threaded fit with the fixed block 724. The radial position of the sizing die 1 can be adjusted by rotating the adjusting screw 723.
The elevation adjusting device 74 includes an elevation adjusting screw 741, an elevation adjusting plate 743, and an elevation positioning nut 742. The lifting adjusting plate 743 is provided with a first through hole through which the steel pipe can pass, and the lifting adjusting plate 743 is in sliding fit with the mounting seat 76. The lifting adjusting screw rod 741 is vertically arranged, one end of the lifting adjusting screw rod 741 is movably sleeved with the lifting adjusting plate 743, and the other end of the lifting adjusting screw rod 741 penetrates through the mounting seat 76 and is in threaded fit with the mounting seat 76. And a lifting positioning nut 742 is sleeved outside the lifting adjusting screw rod 741 and is in threaded fit with the lifting adjusting screw rod 741. The rotation of the elevation adjusting screw 741 enables the rotation of the elevation adjusting screw 741 to move up and down along the axial direction thereof and drives the elevation adjusting plate 743 to move up and down. Rotation of the lift set nut 742 locks the lift adjustment screw 74 to the mounting block 76.
The transverse adjusting device 75 comprises a transverse carriage 751, a transverse screw 752, a transverse screw seat 753 and a worm gear clamping ring 754. The transverse carriage 751 is in sliding fit with the lifting adjusting plate 743, and the transverse screw rod seat 753 is fixedly connected with the mounting seat 76. One end of a transverse moving screw rod 752 is movably sleeved with the transverse moving planker 751, and one end of the transverse moving screw rod 752 penetrates through the transverse moving screw rod seat 753 and is in threaded fit with the transverse moving screw rod seat 753. The horizontal position of the transverse carriage 751 and the shaping die holder 73 connected with the transverse carriage can be adjusted by rotating the transverse lead screw 752.
The transverse carriage 751 is provided with a second through hole for the steel pipe to pass through, and the worm wheel pressing ring 754 is fixedly connected with one side of the worm wheel 731 by a screw and clamps the edge of the second through hole. Therefore, the traverse carriage 751 can support the shaping die holder 73, and the shaping die holder 73 can rotate around the axis of the second through hole.
The power transmission device 9 includes a power motor 91, a longitudinal power transmission shaft 92, a transverse power transmission case 93, and a dowel bar 94. The power motor 91 is connected with the longitudinal power transmission shaft 92 and can drive the longitudinal power transmission shaft 92 to rotate, and the plurality of transverse power transmission boxes 93 are sequentially connected in a transmission manner. The transverse power transmission boxes 93 can also be connected by a longitudinal power transmission shaft 92. The dowel bars 94 are arranged in multiple groups and are connected with the transverse power transmission boxes 93 in a one-to-one correspondence. The dowel bars 94 and the power transmission case 93 are arranged into a plurality of groups and are respectively connected with the lower roll shafts of the steel strip flattening device 2, the steel strip edge folding device 3, the steel strip folding device 4, the folding welding device 5, the welding seam flattening device 8 and the steel pipe shaping device 6 in a one-to-one correspondence manner, so that all the devices can be synchronously linked. The number of the motors 91 is two, one of the motors 91 drives the horizontal roller press 41 of the steel strip flattening device 2, the steel strip edge folding device 3 and the steel strip folding device 4, and the other motor 91 drives the first integrating device 43, the second integrating device 44 and the third integrating device 45 of the steel strip folding device 4, the folding welding device 5 and the weld flattening device 8.
Example 2
The embodiment provides a high-efficiency grinding-free automatic pipe making method suitable for the high-efficiency grinding-free automatic pipe making machine of the embodiment 1, and the method comprises the following steps:
s1, the steel strip unreeling device 1 unreels the steel strip, and the unreeled steel strip enters the position between two horizontal rollers of the steel strip flattening device 2 to be flattened;
s2, pressing the two side edges of the flattened steel strip into right-angle secondary folding edges through a steel strip folding device 3; the secondary folds have two 90 degree bend angles and two connected planes that are bent substantially at 90 degrees. The secondary folded edge is bent upwards by 90 degrees from the center outwards and then is bent outwards by 90 degrees in the horizontal direction.
S3, pressing the middle part of the steel strip by the horizontal roller press 41 of the steel strip folding device 4 to enable the middle part of the steel strip to be concave and the edges of the two sides to be turned upwards, and pressing the two sides of the bent steel strip by the vertical roller press 42 of the steel strip folding device 4 to enable the edges of the two sides to be folded towards the middle;
s4, welding the two folded side edges of the steel strip by the folding welding device 5 to form a steel pipe;
s5, the steel pipe shaping device 6 primarily shapes the steel pipe, and the shaping and sizing device 7 further shapes the steel pipe to a predetermined shape.
Step S3 further includes the steps of: the first integration device 43 of the steel strip folding device 4 presses the corner part of the secondary folding edge to reduce the radian of the corner of the secondary folding edge, so that the corners of two connected and bent surfaces are more clear rather than arc-shaped, and the handrail can be more conveniently installed on a finished product. The second integrating device 44 of the planar steel strip folding device 4 presses the secondary folding edge of the steel strip so that the two side edges of the steel strip are located on the same plane, and the third integrating device 45 of the steel strip folding device 4 further sorts and folds the two side edges of the steel strip relatively for welding.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept herein, and it is intended to cover all such modifications and variations as fall within the scope of the invention.
Claims (9)
1. High-efficient automatic tuber of exempting from to polish, its characterized in that, including steel band unwinding device (1), steel band flattening device (2), steel band hem device (3), the steel band fold device (4), fold welding set (5), steel pipe integer device (6) and integer sizing device (7) that arrange in proper order, steel band unwinding device (1) flattens through steel band flattening device (2) after unreeling the steel band roll, steel band hem device (3) progressively suppresses the both sides edge of the steel band after flattening into the secondary limit of buckling of right angle type, steel band fold device (4) suppress the steel band and make the both sides edge of steel band fold after progressively bending up, fold welding set (5) and will fold the steel pipe of steel band both sides edge weld formation banding after, steel band fold device (4) still including first integration device (43) that arrange in proper order, A second integration device (44) and a third integration device (45).
2. The high-efficiency grinding-free automatic pipe making machine according to claim 1, wherein the secondary bending edges on both sides of the steel strip form a groove (101) on one side of the steel pipe (10) after welding, and the welding seam is positioned in the groove (101).
3. The high efficiency, sanding-free, automatic pipe making machine according to claim 1, further comprising a weld flattening apparatus (8), the weld flattening apparatus (8) being located between the fold welding apparatus (5) and the steel pipe shaping apparatus (6).
4. The efficient grinding-free automatic pipe making machine according to any one of claims 1-3, wherein: steel band hem device (3) are including roller (32) under support (31), the hem, hem lower roll (33), hem roller (34) and hem roller (35) down, roller (34) and hem roller (35) are all installed in support (31) under hem, roller (32) suit is outside roller (34) on the hem and with hem roller (34) fixed connection, hem lower roll (33) suit is outside roller (35) under the hem and with hem roller (35) fixed connection down, roller (32) are relative with hem lower roll (33) on the hem, the both ends of roller (32) are equipped with the concave part of inside buckling on the hem, the both ends of hem lower roll (33) are equipped with the convex part of outside buckling.
5. The efficient grinding-free automatic pipe making machine according to any one of claims 1-3, wherein the steel belt folding device (4) comprises a horizontal roller press (41) and a vertical roller press (42), the vertical roller press (42) is located at an output end of the horizontal roller press (41), the horizontal roller press (41) is provided with a horizontal upper roller (411) and a horizontal lower roller (412), the horizontal upper roller (411) is matched with the horizontal lower roller (412), the middle portion of the horizontal upper roller (411) is in an arc shape and protrudes outwards, the middle portion of the horizontal lower roller (412) is in an arc shape and is concave inwards, the vertical roller press (42) is provided with two parallel vertical rollers (421), and the middle portion of the vertical roller (421) is in an arc shape and concave inwards.
6. The high-efficiency grinding-free automatic pipe making machine according to any one of claims 1-3, wherein the first integration device (43) comprises a first integration upper roller (431) and a first integration lower roller (432), both ends of the first integration upper roller (431) are provided with groove edge integration flanges (433), and the middle part of the first integration lower roller (432) is provided with a square-shaped concave ring.
7. The high-efficiency grinding-free automatic pipe making machine according to any one of claims 1-3, wherein the second integration device (44) comprises a second integration upper roller (441) and a second integration lower roller (442), the second integration upper roller (441) is provided with a first step (443), a second step (444) and a third step (445) with diameters increasing in sequence from the end to the center, the first step (443) and the second step (444) are respectively arranged in two and symmetrically distributed at two sides of the third step (445), the middle part of the second integration lower roller (442) is provided with a square concave-shaped inner ring, the third integration device (45) comprises a third integration upper roller (451) and a third integration lower roller (452), the third integration upper roller (451) is provided with a whole-seam flange (453) and a blank-pressing step (454), and the whole-seam flange (453) is positioned at the middle part of the third upper roller integration (451), the two edge pressing steps (454) are symmetrically distributed on two sides of the whole seam flange (453), and the middle of the third integrated lower roller (452) is provided with a square concave ring.
8. The high-efficiency grinding-free automatic pipe making machine according to any one of claims 1-3, wherein the steel pipe shaping device (6) is provided with an upper shaping roller (61) and a lower shaping roller (62), two first square flanges (611) are respectively arranged at two ends of the upper shaping roller (61), a second square flange (612) is arranged in the middle of the upper shaping roller (61), two square concave rings (613) are formed between the first square flanges (611) and the second square flanges (612), and a square concave ring is arranged in the middle of the lower shaping roller (62).
9. The efficient polishing-free automatic pipe manufacturing method is characterized by comprising the following steps of:
s1, after the steel strip is unreeled by the steel strip unreeling device (1), the steel strip is flattened by the steel strip flattening device (2);
s2, pressing the two side edges of the flattened steel strip into right-angle secondary folded edges through a steel strip folding device (3);
s3, pressing the middle part of the steel strip by a horizontal roller press (41) of the steel strip folding device (4) to enable the middle part of the steel strip to be concave and the edges of the two sides to be turned upwards, and pressing the edges of the two sides of the steel strip by a vertical roller press (42) of the steel strip folding device (4) to enable the edges to be folded relatively;
s4, welding the two folded side edges of the steel strip by a folding welding device (5) to form a steel tube;
s5, carrying out primary shaping on the shape of the steel pipe by the steel pipe shaping device (6), and further shaping the shape of the steel pipe by the shaping sizing device (7) to reach a preset shape;
the step S3 further includes the steps of: the first integration device (43) of the steel strip folding device (4) presses the corner position of the secondary folding edge to reduce the corner radian of the secondary folding edge, the second integration device (44) of the steel strip folding device (4) presses the secondary folding edge of the steel strip to enable the two side edges of the steel strip to be located on the same plane, and the third integration device (45) of the steel strip folding device (4) further sorts and enables the two side edges of the steel strip to be relatively folded for welding.
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| CN115106788B (en) * | 2022-06-28 | 2024-05-03 | 航天晨光股份有限公司 | Double-layer dislocation sleeving device for ultrathin-wall steel strip |
| CN115847097B (en) * | 2022-12-23 | 2025-09-30 | 石家庄中泰制管技术开发有限公司 | A multifunctional production line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048705A (en) * | 1974-05-22 | 1977-09-20 | Acieries Reunies De Burbach-Eich-Dudelange S.A. Arbed | Method of making soldering wire constituted by a core of powder and a metallic tube enclosing the core |
| US4796798A (en) * | 1986-06-11 | 1989-01-10 | Kawasaki Jukogyo Kabushiki Kaisha | Method of and apparatus for continuous production of seam-welded metal tubing |
| CN1788873A (en) * | 2005-11-23 | 2006-06-21 | 何甜灶 | Method and apparatus for producing heterotype tubing using steel plate |
| CN108906904A (en) * | 2018-09-13 | 2018-11-30 | 宿迁学院 | A kind of radially continuous extruding preparation facilities and method of special pipe |
| CN210588120U (en) * | 2019-05-28 | 2020-05-22 | 佛山市龙翀金属制品有限公司 | Automatic production system for large-diameter steel pipe |
-
2021
- 2021-01-13 CN CN202110044627.7A patent/CN112355663B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048705A (en) * | 1974-05-22 | 1977-09-20 | Acieries Reunies De Burbach-Eich-Dudelange S.A. Arbed | Method of making soldering wire constituted by a core of powder and a metallic tube enclosing the core |
| US4796798A (en) * | 1986-06-11 | 1989-01-10 | Kawasaki Jukogyo Kabushiki Kaisha | Method of and apparatus for continuous production of seam-welded metal tubing |
| CN1788873A (en) * | 2005-11-23 | 2006-06-21 | 何甜灶 | Method and apparatus for producing heterotype tubing using steel plate |
| CN108906904A (en) * | 2018-09-13 | 2018-11-30 | 宿迁学院 | A kind of radially continuous extruding preparation facilities and method of special pipe |
| CN210588120U (en) * | 2019-05-28 | 2020-05-22 | 佛山市龙翀金属制品有限公司 | Automatic production system for large-diameter steel pipe |
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