CN110884097B - Plastic package anti-warping device and method - Google Patents
Plastic package anti-warping device and method Download PDFInfo
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- CN110884097B CN110884097B CN201911206903.4A CN201911206903A CN110884097B CN 110884097 B CN110884097 B CN 110884097B CN 201911206903 A CN201911206903 A CN 201911206903A CN 110884097 B CN110884097 B CN 110884097B
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- plastic package
- air
- warping
- package part
- temperature value
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- 239000004033 plastic Substances 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007664 blowing Methods 0.000 claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/16—Straightening or flattening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/84—Heating or cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to the technical field of electronic machinery, in particular to anti-warping equipment and method for a plastic package part. The invention mainly solves the technical problem that the conventional anti-warping equipment for the plastic package part cannot prevent the plastic package part from warping by blowing gas with proper temperature to the plastic package part. To this end, the invention provides a plastic package anti-warping device, which comprises: the pressing machine is used for placing the plastic package piece; the air outlet of the air blowing device corresponds to the plastic package piece; and the temperature display is arranged on the material pressing machine and used for displaying the temperature value of the plastic package, and the blowing device blows air to the plastic package according to the temperature value of the plastic package. The anti-warping equipment for the plastic package part can blow air to the plastic package part through the air blowing device, adjust the working condition of the air blowing device through the temperature value of the plastic package part, and reduce the warping phenomenon of the plastic package part by adjusting the temperature value of air blown to the plastic package part.
Description
Technical Field
The invention relates to the technical field of electronic machinery, in particular to anti-warping equipment and method for a plastic package part.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
At present, the condition that the mould reports to the police often can take place for our plastic packaging machine, at this moment, need manually take out the product from the mould, then put the product on the workstation and push down with the briquetting, prevent that the product from taking place the warpage, at this in-process, though the briquetting pushes down the product, but the cooling process to the product is uncontrollable, is difficult to control the angularity of product, even the waste material stripper on the machine also only controls air flow and blows the cold gas time, does not have the device of control air current temperature, and cooling temperature has very big influence to the warpage of product.
Disclosure of Invention
The object of the present invention is to solve at least one of the problems of the prior art mentioned above, and the object is achieved by the following technical solutions:
the first aspect of the present invention provides a plastic-sealed part warpage preventing apparatus, including: the pressing machine is used for placing the plastic package piece; the air outlet of the air blowing device corresponds to the plastic package piece; the temperature display is arranged on the pressing machine and used for displaying the temperature value of the plastic package, and the blowing device blows air to the plastic package according to the temperature value of the plastic package.
Preferably, blast apparatus includes the air cooling gun, and the air outlet of air cooling gun passes through the air intake intercommunication on tuber pipe and the swager, and is provided with the governing valve of adjusting the air-out temperature on the air cooling gun.
Preferably, the anti-warping device for the plastic package further comprises a pressure regulating valve arranged on the air pipe, and the pressure regulating valve is used for regulating the air pressure value in the air pipe.
Preferably, the anti-warping device for the plastic package further comprises a flow display arranged at the air inlet of the material pressing machine, and the flow display is used for displaying the flow of the gas flowing into the air inlet.
Preferably, the anti-warping device for the plastic package further comprises a delay air valve arranged on the air pipe, and the delay air valve is used for controlling the air blowing time of the air blowing device to the plastic package.
Preferably, the blowing device comprises a fan, the blowing side of the fan is close to the plastic package, and the fan has a plurality of different working gears.
Preferably, the anti-warping device for the plastic package further comprises a controller, the controller is electrically connected with the temperature display and the fan respectively, and the controller controls the working gear of the fan according to the temperature value displayed by the temperature display.
Preferably, the anti-warping device for the plastic package further comprises a touch screen, and the touch screen is electrically connected with the controller.
A second aspect of the present invention provides a method for preventing warpage of a plastic package, where the method is performed by the apparatus for preventing warpage of a plastic package according to the first aspect of the present invention, and the method includes: the temperature display displays the temperature value of the plastic package part, and the flow display displays the gas flow flowing into the plastic package part; adjusting an adjusting valve on the cold air gun according to the temperature value and the air flow; adjusting a pressure adjusting valve on the air pipe according to the temperature value and the gas flow; and adjusting the delay time of the delay air valve according to the temperature value and the gas flow.
A third aspect of the present invention provides a plastic package warpage prevention method, which is performed by the plastic package warpage prevention apparatus according to the first aspect of the present invention, and includes: the controller receives a temperature control instruction sent by the touch screen; the controller receives the temperature value of the plastic package monitored by the temperature display; and the controller controls the working gear of the fan according to the temperature control instruction and the temperature value.
The technical personnel can understand that the anti-warping device for the plastic package can blow air to the plastic package through the air blowing device, adjust the working condition of the air blowing device through the temperature value of the plastic package, and reduce the warping phenomenon of the plastic package by adjusting the temperature value of air blown to the plastic package.
Furthermore, the plastic package piece taken out of the mold is placed in a pressing machine to be fixed, the blowing device blows air to the plastic package piece, the cold air blowing time, the cold air blowing temperature and the cold air blowing flow (namely the cold air flow rate and the degree of urgency) of the blowing device are controlled, and the cold air blowing time, the cold air blowing temperature and the cold air blowing flow are closely related to the warping degree of the plastic package piece, so that the warping phenomenon of the plastic package piece in the pressing machine is reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a block diagram of a warp prevention apparatus for a plastic package according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a material pressing machine in the anti-warping device for plastic-sealed parts shown in fig. 1.
Fig. 3 is a schematic flow chart of a method for preventing warpage of a plastic package according to a first embodiment of the present invention.
Fig. 4 is a block diagram of a warpage preventing apparatus for a plastic package according to a second embodiment of the present invention.
Fig. 5 is a schematic structural view of a material pressing machine in the anti-warping device for plastic-sealed parts shown in fig. 4.
Fig. 6 is a flowchart illustrating a method for preventing warpage of a plastic package according to a second embodiment of the present invention.
Wherein the reference numbers are as follows:
100. anti-warping equipment for the plastic package part;
11. an upper pressure plate; 12. a lower pressing plate;
20. a fan; 21. a cold air pipe; 22. a hot air pipe.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the application of the anti-warping device for plastic package in the invention is only a preferred embodiment, and is not a limitation to the application range of the anti-warping device for plastic package, for example, the anti-warping device for plastic package in the invention can also be used in other products, and such adjustment does not depart from the application range of the anti-warping device for plastic package in the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.
Although the terms first, second, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. In addition, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be construed broadly, e.g., as a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
For convenience of description, spatially relative terms, such as "upper", "lower", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. This spatially relative relationship is intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The mechanism may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Fig. 1 is a block diagram of a plastic-package anti-warp apparatus according to a first embodiment of the present invention, and fig. 2 is a schematic structural diagram of a material pressing machine in the plastic-package anti-warp apparatus shown in fig. 1.
As shown in fig. 1 and fig. 2, according to an embodiment of the present invention, a first aspect of the present invention provides a plastic package warpage preventing apparatus 100, the plastic package warpage preventing apparatus 100 includes a pressing machine, an air blowing device, and a temperature display, the pressing machine is used for placing a plastic package, the pressing machine includes an upper pressing plate 11 and a lower pressing plate 12, the plastic package is placed between the upper pressing plate 11 and the lower pressing plate 12, an air outlet of the air blowing device corresponds to the plastic package, the temperature display is disposed on the pressing machine and is used for displaying a temperature value of the plastic package, and the air blowing device blows air to the plastic package according to the temperature value of the plastic package. The anti-warping device 100 for the plastic package part can blow air to the plastic package part through the air blowing device, adjust the working condition of the air blowing device through the temperature value of the plastic package part, and reduce the warping phenomenon of the plastic package part by adjusting the temperature value of air blown to the plastic package part.
With reference to fig. 1, according to the first embodiment of the present invention, the blowing device includes a cold air gun, an air inlet of the cold air gun is communicated with the air source device, an air outlet of the cold air gun is communicated with an air inlet of the material pressing machine through an air pipe, and the cold air gun is provided with an adjusting valve for adjusting an air outlet temperature. The anti-warping equipment 100 for the plastic package piece further comprises a pressure regulating valve arranged on the air pipe, a pressure gauge is arranged on the pressure regulating valve, the pressure regulating valve is used for regulating an air pressure value in the air pipe, the anti-warping equipment 100 for the plastic package piece further comprises a flow display arranged at an air inlet of a material pressing machine, the flow display is used for displaying the air flow flowing into the air inlet, the anti-warping equipment 100 for the plastic package piece further comprises a time delay air valve arranged on the air pipe, and the time delay air valve is used for controlling the air blowing time of an air blowing device to the plastic package piece.
As will be understood by those skilled in the art, the cooling air blowing time, the cooling air blowing temperature and the cooling air blowing flow rate are closely related to the warpage of the mold package, and the time, temperature and flow of the cooling air required by different plastic package parts are different, such as different thermal expansion rates of the wafer, the PCB and the epoxy resin, and different times, temperatures and flows of the cooling air are required, the embodiment can control the time of the cooling air of the blowing device to the plastic package part through the delay air valve, and display the temperature value of the plastic package part according to the temperature display, the flow display is used for displaying the gas flow (namely the flow speed and the degree of urgency) flowing into the air inlet, the pressure gauge is used for displaying the air pressure value in the air pipe, thereby enabling a user to reasonably adjust the adjusting valve on the cold air gun, enabling various parameters of the air blown to the plastic package part to reach preset parameter values, the warping phenomenon of the plastic package in the material pressing machine is reduced by introducing gas with proper parameters into the plastic package.
It should be noted that the cold air gun is a device which is made according to the eddy current principle and can reduce and raise the temperature of the compressed gas, the temperature adjusting range is wide, one air outlet of the cold air gun discharges cold air and is communicated with a cold air pipe 21 on the upper pressure plate 11, the other air outlet of the cold air gun discharges hot air and is communicated with a hot air pipe 22 on the upper pressure plate 11, an adjusting valve for adjusting the cold air quantity and the hot air quantity is arranged on the cold air gun, and a user can adjust the cold air quantity and the hot air quantity of the cold air gun through the adjusting valve, so that the temperature value of the gas blown to the plastic package reaches a preset temperature value.
As shown in fig. 3, a second aspect of the present invention provides a mold part warpage preventing method, which is performed by the mold part warpage preventing apparatus 100 according to the first aspect of the present invention, and includes: s10, displaying the temperature value of the plastic package part by the temperature display, and displaying the gas flow flowing into the material pressing cavity by the flow display; s12, adjusting an adjusting valve on the cold air gun according to the temperature value and the air flow; s14, adjusting a pressure adjusting valve on the air pipe according to the temperature value and the gas flow; and S16, adjusting the delay time of the delay gas valve according to the temperature value, the pressure value and the gas flow.
It should be noted that the method for preventing the plastic package from warping in the above embodiment is open loop control, that is, a user adjusts the air output and the air output temperature of the cold air gun according to the gas parameter value displayed on the instrument panel, so that the temperature value of the gas blown to the plastic package reaches a preset temperature value, and the flow rate of the gas blown to the plastic package reaches a preset flow value.
Fig. 4 is a block diagram of a plastic package anti-warp apparatus according to a second embodiment of the present invention, and fig. 5 is a schematic structural diagram of a material pressing machine in the plastic package anti-warp apparatus shown in fig. 4.
As shown in fig. 4 and 5, according to the second embodiment of the present invention, the blowing device includes a fan 20, a blowing side of the fan 20 is close to the plastic package, the fan 20 has a plurality of different operating positions, the plastic package warpage preventing apparatus 100 further includes a controller, the controller is electrically connected to the temperature display and the fan 20, the controller controls the operating positions of the fan 20 according to the temperature value displayed by the temperature display, and the plastic package warpage preventing apparatus 100 further includes a touch screen, and the touch screen is electrically connected to the controller.
In the above embodiment, the user can select the temperature value of the gas blown to the plastic package through the touch screen according to the type of the plastic package, for example, the plastic package is a wafer, a PCB or an epoxy resin, the user selects the wafer, the PCB or the epoxy resin through the touch screen, and the controller controls the rotation speed and the power of the fan 20 according to the type of the plastic package selected by the user until the temperature value of the gas blown to the plastic package reaches the preset temperature value.
It should be noted that the touch screen in the present invention may be one of a vector pressure sensing technology touch screen, a resistance technology touch screen, a capacitance technology touch screen, an infrared technology touch screen, and a surface acoustic wave technology touch screen.
It should be noted that the controller may be one of a PLC or a single chip, and the plastic package warpage preventing apparatus 100 further includes a computer readable storage medium, where a computer program capable of being read by the touch screen is stored in the computer readable storage medium, and the computer program includes gas parameter values required by different plastic packages. It will be appreciated by those skilled in the art that the computer-readable storage medium can include various media capable of storing program code, such as a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, etc.
As shown in fig. 6, a third aspect of the present invention provides a mold component warpage preventing method, which is performed by the mold component warpage preventing apparatus 100 according to the first aspect of the present invention, and includes: s20, the controller receives a temperature control instruction sent by the touch screen; s22, the controller receives the temperature value of the plastic package monitored by the temperature display; and S24, the controller controls the working gear of the fan 20 according to the temperature control command and the temperature value.
It should be noted that the method for preventing the plastic package from warping in the above embodiment is closed-loop control, that is, the controller automatically adjusts the rotation speed and the power of the fan 20 according to the gas temperature value displayed by the temperature display, so that the gas temperature value displayed on the temperature display reaches the preset temperature value of the plastic package, and the phenomenon that the plastic package warps in the material pressing machine is reduced.
It should be understood by those skilled in the art that it is relatively easy for the controller to automatically adjust the rotation speed and power of the fan 20 according to the gas parameters displayed on the dashboard, and only the difference between the gas temperature value displayed by the temperature display and the preset temperature value of the plastic package needs to be converted into a pulse increment and then output to the stepping motor, so that the fan 20 is driven by the stepping motor, and the specific process of controlling the stepping motor by the controller is not described in detail herein.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
While the invention has been described with reference to specific preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (1)
1. A method for preventing warping of a plastic package is characterized in that the method is executed according to plastic package warping prevention equipment, and the plastic package warping prevention equipment comprises the following steps: the pressing machine is used for placing the plastic package piece; the air outlet of the air blowing device corresponds to the plastic package part; the temperature display is arranged on the pressing machine and used for displaying the temperature value of the plastic package part, and the blowing device blows air to the plastic package part according to the temperature value of the plastic package part; the blowing device comprises a cold air gun, an air outlet of the cold air gun is communicated with an air inlet on the material pressing machine through an air pipe, and an adjusting valve for adjusting the air outlet temperature is arranged on the cold air gun; the anti-warping equipment for the plastic package part further comprises a pressure regulating valve arranged on the air pipe, and the pressure regulating valve is used for regulating the air pressure value in the air pipe; the plastic package anti-warping equipment further comprises a flow display arranged at an air inlet of the pressing machine, and the flow display is used for displaying the flow of gas flowing into the air inlet; the anti-warping equipment for the plastic package part further comprises a delay air valve arranged on the air pipe, and the delay air valve is used for controlling the air blowing time of the air blowing device to the plastic package part; the anti-warping method of the plastic package part comprises the following steps:
the temperature display displays the temperature value of the plastic package part, and the flow display displays the gas flow flowing into the plastic package part;
adjusting an adjusting valve on the cold air gun according to the temperature value and the gas flow;
adjusting a pressure adjusting valve on an air pipe according to the temperature value and the gas flow;
and adjusting the delay time of the delay gas valve according to the temperature value and the gas flow.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206903.4A CN110884097B (en) | 2019-11-29 | 2019-11-29 | Plastic package anti-warping device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911206903.4A CN110884097B (en) | 2019-11-29 | 2019-11-29 | Plastic package anti-warping device and method |
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| Publication Number | Publication Date |
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| CN110884097A CN110884097A (en) | 2020-03-17 |
| CN110884097B true CN110884097B (en) | 2022-06-21 |
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| CN103042696A (en) * | 2013-01-04 | 2013-04-17 | 常熟市三恒建材有限责任公司 | Production technology for improving physical property of plastic waterproof board |
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| CN106425677A (en) * | 2016-08-29 | 2017-02-22 | 广东工业大学 | Low-temperature cold air device |
| CN107234805A (en) * | 2017-06-27 | 2017-10-10 | 宁夏共享模具有限公司 | A kind of FDM printers control wind system automatically |
| CN207731908U (en) * | 2018-01-29 | 2018-08-14 | 上海泰睿思微电子有限公司 | Lead frame plastic packaging tablet warpage bumps means for correcting and its baking correction system |
| CN108863033A (en) * | 2018-06-25 | 2018-11-23 | 本溪鹤腾科技发展有限公司 | A kind of box-annealing furnace |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624909B (en) * | 2012-08-24 | 2016-09-07 | 无锡华润安盛科技有限公司 | For reducing fixture and the method thereof of plastic-sealed body bending |
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2019
- 2019-11-29 CN CN201911206903.4A patent/CN110884097B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042696A (en) * | 2013-01-04 | 2013-04-17 | 常熟市三恒建材有限责任公司 | Production technology for improving physical property of plastic waterproof board |
| CN205243743U (en) * | 2015-12-21 | 2016-05-18 | 江苏金风科技有限公司 | Cooling device , wind generating set for wind generating set |
| CN106425677A (en) * | 2016-08-29 | 2017-02-22 | 广东工业大学 | Low-temperature cold air device |
| CN107234805A (en) * | 2017-06-27 | 2017-10-10 | 宁夏共享模具有限公司 | A kind of FDM printers control wind system automatically |
| CN207731908U (en) * | 2018-01-29 | 2018-08-14 | 上海泰睿思微电子有限公司 | Lead frame plastic packaging tablet warpage bumps means for correcting and its baking correction system |
| CN108863033A (en) * | 2018-06-25 | 2018-11-23 | 本溪鹤腾科技发展有限公司 | A kind of box-annealing furnace |
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| CN110884097A (en) | 2020-03-17 |
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