CN109291616B - Screen pasting and film tearing device and film tearing method - Google Patents
Screen pasting and film tearing device and film tearing method Download PDFInfo
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- CN109291616B CN109291616B CN201811231325.5A CN201811231325A CN109291616B CN 109291616 B CN109291616 B CN 109291616B CN 201811231325 A CN201811231325 A CN 201811231325A CN 109291616 B CN109291616 B CN 109291616B
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- film layer
- lower template
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- shielding film
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/10—Removing layers, or parts of layers, mechanically or chemically
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a shielding and laminating technology and discloses a shielding and film tearing device and a film tearing method, wherein the shielding and film tearing device comprises an air injection device, a lower template and an upper template capable of being laminated with the lower template, a positioning area for fixing a plurality of FPCs is arranged on the lower template, the positioning area comprises at least one waste area, at least one positioning piece is arranged in the waste area, after the upper template and the lower template are laminated, a stress difference generated at a stress concentration position enables a release film layer and a shielding film layer to be separated in a staggered mode, and after air is injected by the air injection device, the release film layer on each FPC can be blown away from the shielding film layer, so that the working efficiency can be improved, and the damage to products possibly caused by manual operation can be effectively avoided.
Description
Technical Field
The invention relates to a shielding and laminating technology, in particular to a shielding and film tearing device and a film tearing method.
Background
The FPC is used as a patch cord among all components in an electronic product, the main function of the FPC is to conduct current and transmit signals, and in order to prevent the signals from being interfered by external electromagnetic interference during signal transmission, an electromagnetic shielding film is required to be attached to the surface of the FPC to ensure that the signals can be stably transmitted. However, since the release film is attached to the surface of the electromagnetic shielding film, the release film is torn off after the electromagnetic shielding film is attached to the FPC.
In the FPC production process, when each typesetting comprises a plurality of discrete FPCs, the electromagnetic shielding films attached to the FPCs are generally small, and a certain distance exists between the FPCs, so that a plurality of repeated actions of removing the release films need to be added, the operation time is prolonged, and the working period is prolonged; and the operator tears the membrane from the non-waste area when tearing the membrane by hand, destroys the product very easily, may make the surface of product fish tail, crush injury, fold and pollute the surface of product, has increased the product disability rate.
Disclosure of Invention
The invention provides a device for pasting a shielding film, which overcomes and solves the problems of low working efficiency caused by repeated film tearing manually and damage to a product possibly caused by manual contact with the product in the prior art by arranging a positioning piece in a waste material area of a positioning area and separating a release film layer from the shielding film layer after an upper template and a lower template are combined.
The invention also provides a film tearing method.
The invention provides a technical scheme for solving the technical problem, which comprises the following steps:
a shielding and film tearing device comprises an air injection device, a lower template and an upper template capable of being combined with the lower template, wherein a positioning area for fixing a plurality of FPCs is arranged on the lower template, the positioning area comprises at least one waste material area, at least one positioning piece is arranged in the waste material area, the positioning piece is used for jacking the edge of a shielding film in the waste material area, and after the upper template and the lower template are combined, air can be injected through the air injection device to realize separation of a release film layer from the shielding film layer; the upper template and the lower template are rotatably connected, the upper template and the lower template can be combined to enable the release film layer and the shielding film layer to be separated in a staggered mode, and the upper template and the lower template can be combined to enable the release film layer and the shielding film layer to be separated in a staggered mode.
As an improvement of the above technical solution, a plurality of positioning members for fixing the FPC to the lower template are provided in a region of the positioning region different from the waste region.
As a further improvement of the above technical solution, the positioning member is a positioning pin.
As a further improvement of the technical scheme, a handle is arranged on one side, back to the lower template, of the upper template.
As an improvement of the technical scheme, the device also comprises a support arranged on one side of the lower template, and the upper template is combined with the lower template through a lifting assembly.
The film tearing method of the shielding film tearing device comprises the following steps:
s1, fixing the FPC product adhered with the shielding film on a lower template, and enabling the shielding film layer of the waste material area to cover a partial area at the top end of the positioning piece;
s2, combining the upper template and the lower template;
and S3, separating the upper template from the lower template, and blowing the release film layer away from the shielding film layer by the air injection device injecting air towards the positioning piece.
As an improvement of the technical scheme, the waste material area is provided with at least one positioning piece.
As an improvement of the technical scheme, the shielding film layer of the waste material area covers a half area of the top end of the positioning piece.
The beneficial technical effects of the invention are as follows: because the adhesive force between the shielding film layer and the FPC board body is stronger than the adhesive force between the release film layer and the shielding film layer, the positioning piece jacks up the edge of the shielding film in the waste material area, after the upper template and the lower template are combined, the release film layer and the shielding film layer are separated in a dislocation way due to the stress difference generated at the stress concentration position, and after air is injected by the air injection device, the release film layer on each FPC can be blown away from the shielding film layer; not only improves the working efficiency, but also can effectively avoid the damage to the product possibly caused by manual operation, and improves the yield of the product.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram of a mask stripping device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a skin shielding device according to one embodiment of the present invention.
Fig. 3 is a schematic view of the pin lifting the edge of the electromagnetic shielding film according to one embodiment of the present invention.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. Furthermore, the descriptions of the upper, lower, left, right, etc. used in the present invention are only relative to the positional relationship of the components of the present invention with respect to each other in the drawings.
In the production process of the FPC, the release film layer is also adhered on the adhered shielding film layer, so that the release film layer needs to be torn off after the shielding film is adhered on the FPC. A plurality of FPCs are arranged on each typesetting in a row, the electromagnetic shielding film attached to the FPCs is small, and the workload of repeated operation is undoubtedly increased by singly tearing off the release film layer on each FPC. The invention aims to provide a method for tearing off release film layers on a plurality of FPC shielding films at one time, and save working time.
The shielding film comprises a shielding film layer and a release film layer, and the shielding film layer is attached to the release film layer and then punched, so that the shielding film layer attached to the FPC is the same as the release film layer in size. Fig. 1 shows a paste and shield tear film device, including air jet system, lower bolster 10 and can with the cope match-plate pattern 20 of lower bolster 10 laminating, be equipped with the location area that supplies fixed a plurality of FPCs on the lower bolster 10, as shown in fig. 1, be equipped with the product including a plurality of FPCs 30 on the lower bolster 10, and the laminating has shielding film 31 on the subregion of FPC 30. The positioning area comprises a waste material area, and at least one positioning piece is arranged in the waste material area. As shown in fig. 2, the positioning member 11 is disposed outside the FPC 30 and is used for jacking up the edge of the shielding film 31 in the waste, the shielding film 31 includes a shielding film layer 311 and a release film layer 312 attached to the shielding film layer 311, and after the upper template and the lower template 10 are laminated, the release film layer 312 can be separated from the shielding film layer 311 by air injection through an air injection device.
As shown in fig. 3, a waste material region is provided in the positioning region, the shielding film 31 includes a region 313 attached to the FPC and a region 314 extending beyond the FPC, and the region 314 extending beyond the FPC of the shielding film is located in the waste material region.
The positioning piece is arranged in the waste material area and jacks up the edge of the shielding film in the waste material area, and the upper template and the lower template are laminated to enable the release film layer and the shielding film layer to be separated in a staggered mode. The reason is that after the shielding film and the FPC are hot-pressed, the difference between the adhesive force of the shielding film layer attached to the FPC board body and the adhesive force of the release film layer attached to the shielding film layer is large, the adhesive force of the shielding film layer is strong, the adhesive force of the release film layer is weak, after the positioning piece jacks up the edge of the shielding film layer in the waste material area, the release film layer and the shielding film layer are separated in a staggered mode through the stress difference generated at the stress concentration position, and then the release film layer is separated from the shielding film layer after air is sprayed towards the positioning piece through the air spraying device.
As shown in fig. 3, the FPC board is positioned on the lower mold plate, a plurality of positioning members 12 for positioning and fixing the FPC are also provided in the positioning region for fixing the FPC, and the positioning members are preferably point-like positioning structures such as positioning pins.
In this embodiment, the upper template 20 and the lower template 10 are rotatably connected, for example, connected by a hinge, or can be lifted and folded with the lower template along a support disposed at one side of the lower template, and the support is provided with a corresponding lifting assembly; when the upper template is hinged with the lower template, a handle can be arranged on one side of the upper template, which is back to the lower template, so as to turn over the upper template.
The embodiment of the invention also provides a film tearing method using the shielding film tearing device, which comprises the following steps:
s1, fixing the FPC product adhered with the shielding film on a lower template, and enabling the shielding film in the waste material area to cover partial area of the top end of the positioning piece;
s2, combining the upper template and the lower template;
and S3, separating the upper template from the lower template, and blowing the release film layer away from the shielding film layer by the air injection device by supplying air towards the positioning piece.
In the method, the positioning area is provided with at least one positioning piece, and the shielding film of the waste material area covers a half area of the top end of the positioning piece.
Compared with manual film tearing, the film tearing method shortens the film tearing time of each FPC product from 1 ' 02 ' to 10 ', shortens the time by 80% on the basis of the original time, greatly reduces the workload of operators, improves the working efficiency and saves the labor cost.
In addition, the air injection device is adopted in the embodiment of the invention, the release film layer on each plate can be blown away at one time, an operator does not need to manually tear off the release film layer, direct operation and product application are not needed, the damage of pressure injury, scratch, wrinkle and the like to the product caused by manual operation can be effectively avoided, the product yield is improved, and meanwhile, the production cost is also saved.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The shielding film tearing device is characterized by comprising an air injection device, a lower template and an upper template capable of being covered with the lower template, wherein a positioning area for positioning and fixing a plurality of FPCs is arranged on the lower template, the positioning area comprises at least one waste material area, at least one positioning piece is arranged in the waste material area, the positioning piece is arranged on the outer side of the FPCs, and the positioning piece is used for jacking up the edge of a shielding film in the waste material area; the shielding film comprises an area attached to the FPC and an area exceeding the FPC, the area where the shielding film exceeds the FPC is located in the waste material area, and the shielding film layer of the waste material area covers a partial area of the top end of the positioning piece of the waste material area;
the upper template and the lower template are rotatably connected, the upper template and the lower template can be combined to enable the release film layer and the shielding film layer to be separated in a staggered mode, and after the upper template and the lower template are combined, air can be sprayed by the air spraying device to achieve separation of the release film layer from the shielding film layer.
2. The shielding and film tearing device according to claim 1, wherein a plurality of positioning members for fixing the FPC to the lower template are provided in a region of the positioning region different from the waste region.
3. The screen-masking film stripping apparatus of claim 1 or claim 2, wherein the locating member is a locating pin.
4. The shielding and film tearing device according to claim 1, wherein a handle is provided on a side of the upper template facing away from the lower template.
5. The shielding and film tearing device according to claim 1, further comprising a support arranged on one side of the lower template, wherein the upper template is combined with the lower template through a lifting assembly.
6. A method for using the shielding and tearing film device of any one of claims 1-5, which comprises the following steps:
s1, fixing the FPC product adhered with the shielding film on a lower template, and enabling the shielding film layer of the waste material area to cover a partial area of the top end of the positioning piece of the waste material area;
s2, combining the upper template and the lower template;
and S3, separating the upper template from the lower template, and blowing the release film layer away from the shielding film layer by the air injection device injecting air towards the positioning piece in the waste material area.
7. The film tearing method according to claim 6, wherein the shielding film layer of the waste region covers a half area of the top end of the positioning member of the waste region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231325.5A CN109291616B (en) | 2018-10-22 | 2018-10-22 | Screen pasting and film tearing device and film tearing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811231325.5A CN109291616B (en) | 2018-10-22 | 2018-10-22 | Screen pasting and film tearing device and film tearing method |
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| Publication Number | Publication Date |
|---|---|
| CN109291616A CN109291616A (en) | 2019-02-01 |
| CN109291616B true CN109291616B (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811231325.5A Active CN109291616B (en) | 2018-10-22 | 2018-10-22 | Screen pasting and film tearing device and film tearing method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113260152A (en) * | 2021-04-15 | 2021-08-13 | 大连吉星电子股份有限公司 | Waste material removing method for effectively protecting FPC product body |
| CN113260246A (en) * | 2021-07-05 | 2021-08-13 | 福莱盈电子股份有限公司 | Shielding mechanism with silver film structure, forming jig and forming method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379034A (en) * | 2016-10-31 | 2017-02-08 | 东莞市五株电子科技有限公司 | Device for stripping protective film layer of electromagnetic film |
| CN206674323U (en) * | 2017-04-13 | 2017-11-24 | 厦门弘信电子科技股份有限公司 | The EMI thimble tools of FPC |
-
2018
- 2018-10-22 CN CN201811231325.5A patent/CN109291616B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379034A (en) * | 2016-10-31 | 2017-02-08 | 东莞市五株电子科技有限公司 | Device for stripping protective film layer of electromagnetic film |
| CN206674323U (en) * | 2017-04-13 | 2017-11-24 | 厦门弘信电子科技股份有限公司 | The EMI thimble tools of FPC |
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| CN109291616A (en) | 2019-02-01 |
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Effective date of registration: 20210917 Address after: 435000 No.91 Sike Avenue East, Jinshan street, Huangshi economic and Technological Development Zone, Hubei Province Patentee after: LEADER-TECH (HUANGSHI) Inc. Address before: 518104 floors 1-4, 2-3, building a, Huangpu Runhe Industrial Park, South Ring Road, Huangpu Community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: LEADER-TECH ELECTRONICS (SHENZHEN) Inc. |