CN114571532B - Die cutting device and method for manufacturing bending-prevention fold copper foil die cutting piece - Google Patents
Die cutting device and method for manufacturing bending-prevention fold copper foil die cutting piece Download PDFInfo
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- CN114571532B CN114571532B CN202011372137.1A CN202011372137A CN114571532B CN 114571532 B CN114571532 B CN 114571532B CN 202011372137 A CN202011372137 A CN 202011372137A CN 114571532 B CN114571532 B CN 114571532B
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- Prior art keywords
- die
- copper foil
- cutting
- sided adhesive
- bending
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 239000011889 copper foil Substances 0.000 title claims abstract description 83
- 238000005520 cutting process Methods 0.000 title claims abstract description 68
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims abstract description 56
- 239000002390 adhesive tape Substances 0.000 claims abstract description 42
- 239000002699 waste material Substances 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 238000010030 laminating Methods 0.000 claims abstract description 13
- 238000003475 lamination Methods 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 41
- 230000001070 adhesive effect Effects 0.000 claims description 41
- 238000007599 discharging Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 8
- 229920006267 polyester film Polymers 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 16
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XBBRGUHRZBZMPP-UHFFFAOYSA-N 1,2,3-trichloro-4-(2,4,6-trichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=CC=C(Cl)C(Cl)=C1Cl XBBRGUHRZBZMPP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000003071 polychlorinated biphenyls Chemical group 0.000 description 2
- 239000005041 Mylar™ Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010096 film blowing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/27—Means for performing other operations combined with cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a die cutting device for manufacturing a bending-prevention fold copper foil die cutting piece, which sequentially comprises the following components along the conveying direction of a material belt: the device comprises a laminating unit (1), a die cutting unit (2) and a material receiving unit (3); the preparation method comprises the following steps: (1) first-stage material tape lamination: sequentially attaching a copper foil double-sided adhesive tape (121) and a black single-sided adhesive tape (131) above the first release film (111) by using an attaching unit (1) to form a first-stage material belt; (2) primary material belt die cutting and waste discharge: the primary material belt is subjected to die cutting and waste discharge by utilizing a die cutting unit (2) to form a bending-preventing and folding-preventing copper foil die-cut piece finished product; and (3) rolling a product: and rolling the bending-prevention fold copper foil die-cut piece finished product by using a material collecting unit (3). Compared with the prior art, after the bending test is performed on the bending-prevention fold copper foil die-cut piece, the phenomenon of wrinkling and displacement does not exist, the reject ratio of the product is 0%, and the performance of the whole finished product is not affected.
Description
Technical Field
The invention relates to the field of die-cutting piece processing, in particular to a die-cutting device and a manufacturing method for manufacturing a bending-prevention fold copper foil die-cutting piece.
Background
The copper foil Mylar is widely applied to the assembly of FPC and PCB circuit boards in the fields of communication, computers and radio. The shielding material has low surface oxygen characteristic and electromagnetic interference resistance, and can be attached to various base materials such as metal, insulating adhesive tape and the like; the polyester film plays a role in reinforcing the tensile strength of the copper foil. The material has the characteristics of high strength, high flexibility, ductility, good conductivity, good heat dissipation, better surface gloss and the like, and becomes an irreplaceable raw material for certain products. In the prior art, the black PET is covered on the copper foil double-sided adhesive tape, and the shielding effect is mainly achieved, so that the copper foil adhesive is not conducted.
However, after the product is processed, the finished copper foil is attached to the PCB for bending, and the surface of the copper foil on the double-sided adhesive tape after bending is wrinkled, and the copper foil is broken when laminated with other parts, so that the copper exposure conduction occurs, the shielding function is seriously affected, and the reject ratio is as high as 20 percent, as shown in fig. 10.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the die cutting device and the manufacturing method for manufacturing the bending-prevention fold copper foil die cutting piece, wherein the bending-prevention fold copper foil die cutting piece is free from wrinkling and displacement after a product is verified by a bending test.
The aim of the invention can be achieved by the following technical scheme:
the inventor finds that the PET has no adhesive component on both sides, namely, the two sides are not glued, the adhesiveness is 0, and the adhesiveness of the double-sided adhesive of the copper foil is about 6.5N/25mm, so that the PET is not firm after being stuck on the copper foil; because the colloid is too low and the PET film is too thin, the phenomenon of wrinkling and displacement can occur after bending, as shown in figure 10, the wrinkled part can be raised, so that PET is damaged and falls off, and the shielding effect of the product is seriously affected; in order to avoid the occurrence of the phenomenon, the invention changes black PET without adhesive components into black single-sided adhesive (polyester film plus adhesive), namely, the component of a layer of adhesive is added on the basis of PET film, the viscosity of the single-sided adhesive is more than or equal to 7.5N/25mm, the viscosity of the double-sided adhesive of copper foil is about 6.5N/25mm, namely, the viscosity of the whole product is increased by at least 7.5N/25mm on the basis of the original, the adhesive-carrying black single-sided adhesive is very firm on the adhesive surface of the copper foil, and the specific scheme is as follows:
die cutting device is used in copper foil die cutting piece preparation of fold of preventing bending, the device includes along material area direction of transmission in proper order:
the laminating unit is used for laminating the first release film, the copper foil double-sided adhesive tape and the black single-sided adhesive tape in sequence to form a first-stage material belt;
the die cutting unit is used for die-cutting the copper foil double faced adhesive tape and the black single faced adhesive tape in the primary material belt into patterns in a die-cut piece product, and forming a bending-prevention fold copper foil die-cut piece finished product;
and the material receiving unit is used for rolling the bending-preventing fold copper foil die-cut piece finished product.
Further, the attaching unit comprises a first release film discharging roller for discharging a first release film, a copper foil double-sided adhesive discharging roller for discharging a copper foil double-sided adhesive and a black single-sided adhesive discharging roller for discharging a black single-sided adhesive;
after passing through the laminating unit, the black single-sided adhesive tape is laminated above the copper foil double-sided adhesive tape, and the first release film is laminated below the copper foil double-sided adhesive tape to form a first-stage material belt.
Further, the black single-sided tape material comprises a polyester film and an adhesive.
Further, the black single-sided adhesive has a tack of at least 7.5N/25mm.
Further, a copper foil double-sided adhesive roll for pressing the copper foil double-sided adhesive roll on the first release film is further arranged above the material belt.
Further, a black single-sided adhesive roll used for rolling the black single-sided adhesive roll on the copper foil double-sided adhesive tape is arranged above the material belt.
Further, the die-cutting unit comprises a die-cutting machine for die-cutting the primary material belt and a waste discharging roller for discharging the die-cut waste. The die-cut waste material only comprises frame waste material after the black single-sided adhesive is die-cut.
Further, a cutting die a is arranged on the die cutting machine, and the punching layer of the cutting die a sequentially comprises black single-sided adhesive tape and copper foil double-sided adhesive tape from top to bottom.
Further, the pattern A die-cut by the cutting die a is matched with the pattern formed by die-cutting the copper foil double faced adhesive tape to form a die-cut piece, and the knife point angle of the cutting die a is 15-20 degrees.
Further, the material receiving unit comprises a material receiving roller for rolling the bending-prevention fold copper foil die-cut piece finished product.
A method for manufacturing a bending-resistant fold copper foil die-cut piece by using the die-cutting device comprises the following steps:
(1) First-stage material belt lamination: sequentially attaching the copper foil double-sided adhesive tape and the black single-sided adhesive tape above the first release film by using an attaching unit to form a first-stage material tape;
(2) First-stage material belt die cutting and waste discharge: the die cutting unit is utilized to form a bending-preventing fold copper foil die-cut piece finished product after the primary material belt is die-cut and waste-discharged;
(3) And (3) rolling a product: and rolling the bending-prevention fold copper foil die-cut part finished product by using a material collecting unit.
Compared with the prior art, the invention has the following advantages:
(1) After the bending test is performed on the prepared bending-prevention fold copper foil die-cut piece, the phenomenon of wrinkling and displacement does not exist, the product reject ratio is 0%, and the performance of the whole finished product is not affected;
(2) By adopting the scheme of the invention, the adverse phenomenon is improved, and a great deal of labor hour and labor are not consumed due to later reworking, so that the cost of a company is saved.
Drawings
FIG. 1 is a schematic view of a die cutting apparatus in an embodiment;
FIG. 2 is a schematic diagram of a die cutter in an embodiment;
FIG. 3 is a schematic diagram of a molding hierarchy in an embodiment;
FIG. 4 is a schematic diagram of a die cutter in an embodiment;
FIG. 5 is a schematic illustration of a die cut piece product of the present invention to be tested;
FIG. 6 is a diagram of a die cut piece product testing apparatus;
FIG. 7 is a schematic view of the layers of the die cut piece product of the present invention to be tested;
FIG. 8 is a schematic view of the prior art die cut piece product in a layered manner to be tested;
FIG. 9 is a schematic diagram of the test results of the die cut piece product of the present invention;
FIG. 10 is a schematic diagram of a prior art die cut piece product test effect;
the reference numerals in the figures indicate: laminating unit 1, first release film blowing roller 11, first release film 111, double faced adhesive tape blowing roller 12, copper foil double faced adhesive tape pressing roller 120, copper foil double faced adhesive tape 121, copper foil black single faced adhesive tape blowing roller 13, black single faced adhesive tape pressing roller 130, black single faced adhesive tape 131, black PET132, PCB 140, die cutting unit 2, die cutting machine 21, waste discharging roller 22, material collecting unit 3, material collecting roller 31 and bending die 4.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples.
Examples
The utility model provides a prevent bending fold copper foil die-cutting piece preparation and use die-cutting device, as in FIG. 1, the device includes along material area direction of transmission in proper order:
the laminating unit 1 is used for laminating the first release film 111, the copper foil double-sided adhesive tape 121 and the black single-sided adhesive tape 131 in sequence to form a first-stage material belt; the laminating unit 1 comprises a first release film discharging roller 11 for discharging the first release film 111, a copper foil double-sided adhesive discharging roller 12 for discharging the copper foil double-sided adhesive 121 and a black single-sided adhesive discharging roller 13 for discharging the black single-sided adhesive 131; after passing through the laminating unit 1, the black single-sided tape 131 is laminated above the copper foil double-sided tape 121, and the first release film 111 is laminated below the copper foil double-sided tape 121 to form a first-stage material tape. The black single-sided tape 131 includes a polyester film and an adhesive. The black single-sided tape 131 has a tack of at least 7.5N/25mm. A copper foil double sided tape pressing roller 120 for rolling the copper foil double sided tape 121 on the first release film 111 is also provided above the tape. A black single-sided tape pressing roller 130 for rolling the black single-sided tape 131 on the copper foil double-sided tape 121 is also arranged above the material belt.
The die cutting unit 2 is used for die-cutting the copper foil double-sided adhesive 121 and the black single-sided adhesive 131 in the primary material belt into patterns in a die-cut piece product and forming a bending-prevention fold copper foil die-cut piece finished product; the die cutting unit 2 includes a die cutter 21 for die-cutting the primary material tape and a waste discharge roller 22 for discharging die-cut waste. The die-cut waste material of this time includes only the frame waste material after the black single-sided tape 131 is die-cut. The die cutting machine 21 is provided with a cutting die a, as shown in fig. 2, and the cutting layer of the cutting die a sequentially comprises a black single-sided adhesive 131 and a copper foil double-sided adhesive 121 from top to bottom, as shown in fig. 3. The pattern A die-cut by the cutter die a is matched with the pattern formed by die-cutting the copper foil double faced adhesive tape 121 to form a die-cut piece, and the cutter angle of the cutter die a is 15-20 degrees, as shown in fig. 4.
And the material receiving unit 3 is used for rolling the bending-preventing fold copper foil die-cut piece finished product. The material receiving unit 3 comprises a material receiving roller 31 for rolling the bending-prevention fold copper foil die-cut piece finished product.
A method for manufacturing a bending-resistant fold copper foil die-cut piece by using the die-cutting device comprises the following steps:
(1) First-stage material belt lamination: sequentially attaching the copper foil double-sided adhesive tape 121 and the black single-sided adhesive tape 131 above the first release film 111 by using an attaching unit 1 to form a first-stage material tape;
(2) First-stage material belt die cutting and waste discharge: the die cutting unit 2 is utilized to form a bending-prevention fold copper foil die-cut piece finished product after the primary material belt is die-cut and waste-discharged;
(3) And (3) rolling a product: and rolling the bending-prevention fold copper foil die-cut piece finished product by using a material collecting unit 3.
After the first release film 111 of the manufactured bending-prevention fold copper foil die-cut piece is removed, as shown in fig. 5-7, the first release film is attached to the PCB board 140, then a bending test is performed in the bending die 4, after the bending test, the phenomenon of wrinkling and displacement is found to be avoided, the reject ratio of the product is 0%, and the performance of the whole finished product is not affected, as shown in fig. 9.
Also, the conventional die-cut product is attached to the PCB 140, and then a bending test is performed in the bending mold 4, as shown in fig. 6 and 8, after the test, the surface of the black PET132 on the copper foil double-sided tape 121 is wrinkled, if the surface is broken when laminated with other components, the copper is exposed to conduct, so that the shielding function is seriously affected, and the reject ratio is as high as 20%, as shown in fig. 10.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims (1)
1. The method for manufacturing the bending-prevention fold copper foil die-cutting piece is implemented by using a die-cutting device based on the bending-prevention fold copper foil die-cutting piece, and is characterized in that the device sequentially comprises the following steps along the conveying direction of a material belt:
the laminating unit (1) is used for laminating the first release film (111), the copper foil double faced adhesive tape (121) and the black single faced adhesive tape (131) in sequence to form a first-stage material belt;
the die-cutting unit (2) is used for die-cutting the copper foil double faced adhesive tape (121) and the black single faced adhesive tape (131) in the primary material tape into patterns in a die-cutting piece product and forming a bending-preventing fold copper foil die-cutting piece finished product;
the material collecting unit (3) is used for collecting the bending-preventing fold copper foil die-cut piece finished product;
the method comprises the following steps:
(1) First-stage material belt lamination: sequentially attaching a copper foil double-sided adhesive tape (121) and a black single-sided adhesive tape (131) above the first release film (111) by using an attaching unit (1) to form a first-stage material belt;
(2) First-stage material belt die cutting and waste discharge: the primary material belt is subjected to die cutting and waste discharge by utilizing a die cutting unit (2) to form a bending-preventing and folding-preventing copper foil die-cut piece finished product;
(3) And (3) rolling a product: winding the bending-prevention fold copper foil die-cut piece finished product by using a material collecting unit (3);
the laminating unit (1) comprises a first release film discharging roller (11) for discharging a first release film (111), a copper foil double-sided adhesive discharging roller (12) for discharging a copper foil double-sided adhesive (121) and a black single-sided adhesive discharging roller (13) for discharging a black single-sided adhesive (131);
after passing through the laminating unit (1), the black single-sided adhesive tape (131) is laminated above the copper foil double-sided adhesive tape (121), and the first release film (111) is laminated below the copper foil double-sided adhesive tape (121) to form a first-stage material tape;
the viscosity of the black single-sided adhesive tape (131) is at least 7.5N/25 mm;
a copper foil double-sided adhesive material pressing roller (120) for pressing the copper foil double-sided adhesive (121) on the first release film (111) in a rolling manner is further arranged above the material belt;
a black single-sided adhesive pressing roller (130) for rolling the black single-sided adhesive (131) on the copper foil double-sided adhesive (121) is also arranged above the material belt;
the die-cutting unit (2) comprises a die-cutting machine (21) for punching the primary material belt and a waste discharge roller (22) for discharging punching waste;
the die cutting machine (21) is provided with a cutting die a, and the cutting layer of the cutting die a sequentially comprises black single-sided adhesive tape (131) and copper foil double-sided adhesive tape (121) from top to bottom;
the pattern A die-cut by the cutting die a is matched with the pattern of a die-cut piece formed by die-cutting the copper foil double faced adhesive tape (121), and the knife point angle of the cutting die a is 15-20 degrees;
the black single-sided tape (131) comprises a polyester film and an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372137.1A CN114571532B (en) | 2020-11-30 | 2020-11-30 | Die cutting device and method for manufacturing bending-prevention fold copper foil die cutting piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372137.1A CN114571532B (en) | 2020-11-30 | 2020-11-30 | Die cutting device and method for manufacturing bending-prevention fold copper foil die cutting piece |
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| Publication Number | Publication Date |
|---|---|
| CN114571532A CN114571532A (en) | 2022-06-03 |
| CN114571532B true CN114571532B (en) | 2024-04-02 |
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| CN202011372137.1A Active CN114571532B (en) | 2020-11-30 | 2020-11-30 | Die cutting device and method for manufacturing bending-prevention fold copper foil die cutting piece |
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| CN (1) | CN114571532B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115260937B (en) * | 2022-07-21 | 2023-12-05 | 苏州伟铂瑞信电子科技有限公司 | Copper foil die cutting processing method with anti-wrinkling function |
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| CN207927017U (en) * | 2018-03-20 | 2018-09-28 | 深圳市鑫盈通达电子科技有限公司 | single-layer flexible circuit board structure |
| CN109955311A (en) * | 2019-04-22 | 2019-07-02 | 四川恒诚信电子科技有限公司 | A kind of copper foil cutter |
| CN110103526A (en) * | 2019-05-07 | 2019-08-09 | 安徽润辉高分子材料科技有限公司 | A kind of polymer moisture-proof compound material and preparation method thereof |
| CN211195264U (en) * | 2019-08-29 | 2020-08-07 | 昊佰电子科技（上海）有限公司 | A electrically conductive cloth coiled material tool of laminating for automation equipment |
| CN211763596U (en) * | 2019-11-25 | 2020-10-27 | 昊佰电子科技（上海）有限公司 | Die cutting piece processing system of accurate laminating is taken to shipment |
| CN211806567U (en) * | 2019-11-29 | 2020-10-30 | 昊佰电子科技（上海）有限公司 | Die cutting system of standard double faced adhesive tape die cutting test piece |
| CN211240297U (en) * | 2019-12-26 | 2020-08-11 | 珠海宏正科技有限公司 | Single-sided copper-clad plate with anti-etching wrinkling micro-adhesive protective film |
| CN111740209A (en) * | 2020-06-17 | 2020-10-02 | 深圳市信维通信股份有限公司 | Preparation method of FPC die-cutting antenna |
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