CN114571532A - Die cutting device for manufacturing bending-proof folded copper foil die cutting piece and manufacturing method - Google Patents
Die cutting device for manufacturing bending-proof folded copper foil die cutting piece and manufacturing method Download PDFInfo
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- CN114571532A CN114571532A CN202011372137.1A CN202011372137A CN114571532A CN 114571532 A CN114571532 A CN 114571532A CN 202011372137 A CN202011372137 A CN 202011372137A CN 114571532 A CN114571532 A CN 114571532A
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- Prior art keywords
- die
- copper foil
- sided adhesive
- cutting
- fold
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 239000011889 copper foil Substances 0.000 title claims abstract description 92
- 238000005520 cutting process Methods 0.000 title claims abstract description 87
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 55
- 239000002390 adhesive tape Substances 0.000 claims abstract description 24
- 238000005452 bending Methods 0.000 claims abstract description 15
- 239000002699 waste material Substances 0.000 claims abstract description 15
- 238000010030 laminating Methods 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 13
- 238000002360 preparation method Methods 0.000 claims abstract description 3
- 239000000853 adhesive Substances 0.000 claims description 72
- 230000001070 adhesive effect Effects 0.000 claims description 72
- 238000007599 discharging Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 6
- 229920006267 polyester film Polymers 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000037303 wrinkles Effects 0.000 abstract description 5
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 8
- 229920002799 BoPET Polymers 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 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 3
- 239000005041 Mylar™ Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 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
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical group 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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 fold-preventing copper foil die cutting piece, which sequentially comprises the following components in the material belt transmission direction: the die cutting device comprises a gluing unit (1), a die cutting unit (2) and a material receiving unit (3); the preparation method comprises the following steps: (1) laminating is taken to the one-level material: sequentially attaching a copper foil double-sided adhesive tape (121) and a black single-sided adhesive tape (131) above a first release film (111) by using an attaching unit (1) to form a primary material tape; (2) die cutting and waste discharge of the primary material belt: utilizing a die cutting unit (2) to die cut and discharge the primary material belt to form a finished product of the bending-resistant folded copper foil die-cut piece; (3) and (3) rolling a product: and rolling the finished product of the fold-preventing copper foil die-cut piece by using the material receiving unit (3). Compared with the prior art, after the bending test verifies that the anti-bending wrinkle copper foil die-cut piece prepared by the invention does not have wrinkling and displacement, the product reject ratio is 0%, and the performance of the whole finished product is not influenced.
Description
Technical Field
The invention relates to the field of die cutting piece processing, in particular to a die cutting device and a die cutting method for manufacturing a fold-preventing copper foil die cutting piece.
Background
The copper foil mylar tape is widely applied to the assembly of FPC and PCB circuit boards in the fields of communication, computers and radio. The coating has low surface oxygen characteristic and anti-electromagnetic interference shielding function, and can be attached to various substrates such as metal, insulating tapes and the like; the polyester film plays a role in enhancing the tensile strength of the copper foil. The material has the characteristics of high strength, high flexibility, ductility, good electric conductivity, good heat dissipation, better surface gloss and the like, and is an irreplaceable raw material for certain products. In the prior art, the product is designed by covering black PET on a copper foil double-sided adhesive, and mainly plays a role in shielding, so that the copper foil adhesive cannot be conducted.
However, after the product is finished, the finished copper foil mylar is attached to the PCB for bending, and the mylar surface on the double-sided tape of the bent copper foil has wrinkles, and when the product is laminated with other components, the copper foil will be cracked, and copper exposure conduction will occur, which seriously affects the shielding function, and the defect rate is as high as 20%, 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 die cutting method for manufacturing the bending-fold-preventing copper foil die cutting piece, which have no wrinkling and displacement phenomena after the bending test of a product is verified.
The purpose of the invention can be realized by the following technical scheme:
after research and thinking, the inventor finds that the PET has no adhesive component on both sides, namely, the two sides have no adhesive, the viscosity is 0, and the viscosity of the copper foil double-sided adhesive is about 6.5N/25mm, so that the PET can be not firm after being attached on the copper foil; because the adhesiveness is too low and the PET film is too thin, wrinkles and displacement can occur after bending as shown in figure 10, and the wrinkles can be higher, so that the PET can be damaged and fall off, and the shielding effect of the product is seriously influenced; in order to avoid the phenomenon, the invention replaces the black PET without adhesive component with the black single-sided adhesive (polyester film + adhesive), namely, a layer of adhesive component is added on the basis of the PET film, the viscosity of the single-sided adhesive is more than or equal to 7.5N/25mm, the viscosity of the copper foil double-sided adhesive is about 6.5N/25mm, namely, the viscosity of the whole product is increased by at least 7.5N/25mm on the original basis, so that the black single-sided adhesive with the adhesive is very firm on the copper foil adhesive surface, and the specific scheme is as follows:
the utility model provides a prevent that fold copper foil cross cutting spare of buckling preparation uses cutting device, the device includes in proper order along material area direction of transfer:
the laminating unit is used for sequentially laminating the first release film, the copper foil double-sided adhesive and the black single-sided adhesive to form a primary material belt;
the die cutting unit is used for die cutting the double-sided adhesive and the black single-sided adhesive of the copper foil in the primary material belt into patterns in a die-cut product and forming a finished product of the fold-preventing copper foil die-cut product;
and the material receiving unit is used for rolling the finished product of the fold-preventing copper foil die-cut piece.
Further, the laminating unit comprises a first release film discharging roller for discharging the first release film, a copper foil double-sided adhesive discharging roller for discharging the copper foil double-sided adhesive, and a black single-sided adhesive discharging roller for discharging the black single-sided adhesive;
after passing through the laminating unit, the black single-sided adhesive is laminated above the copper foil double-sided adhesive, and the first release film is laminated below the copper foil double-sided adhesive to form a first-level material belt.
Further, the black single-sided adhesive comprises a polyester film and an adhesive.
Further, the viscosity of the black single-sided adhesive is at least 7.5N/25 mm.
Furthermore, a copper foil double-sided adhesive tape pressing roller for pressing a copper foil double-sided adhesive tape onto the first release film is further arranged above the material belt.
Furthermore, a black single-sided adhesive material pressing roller used for pressing the black single-sided adhesive roller on the copper foil double-sided adhesive tape is further arranged above the material belt.
Further, the die cutting unit comprises a die cutting machine for cutting the primary material belt and a waste discharging roller for discharging the cutting waste. The punching waste only comprises frame waste after the black single-sided adhesive is punched.
Further, a cutting die a is arranged on the die cutting machine, and the cutting layers of the cutting die a sequentially comprise black single-sided adhesive and copper foil double-sided adhesive from top to bottom.
Furthermore, a pattern A cut by the cutting die a is matched with a pattern of a die-cut piece formed by die-cutting the copper foil double-sided adhesive tape, and the blade 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 folded copper foil die-cut piece finished product.
A method for manufacturing a bending-fold-preventing copper foil die-cut piece by using the die-cutting device comprises the following steps:
(1) laminating is taken to the one-level material: sequentially attaching the double-sided adhesive of the copper foil and the black single-sided adhesive above the first release film by using an attaching unit to form a primary material belt;
(2) die cutting and waste discharge of the primary material belt: utilizing a die cutting unit to die cut and discharge the primary material belt to form a finished product of the bending-resistant folded copper foil die-cut piece;
(3) and (3) rolling a product: and winding the finished product of the bending-preventing and wrinkling copper foil die-cutting piece by using the material receiving unit.
Compared with the prior art, the invention has the following advantages:
(1) by adopting the scheme of the invention, the prepared bending-proof folded copper foil die-cutting piece is verified by bending tests, so that the phenomena of wrinkling and displacement are avoided, the product reject ratio is 0%, and the performance of the whole finished product is not influenced;
(2) by adopting the scheme of the invention, the adverse phenomena are improved, and a large amount of working hours and manpower are not consumed due to later reworking, so that the cost of a company is saved.
Drawings
FIG. 1 is a schematic view of an embodiment of a die cutting apparatus;
FIG. 2 is a schematic view of an embodiment of a die cutting die;
FIG. 3 is a schematic view of an embodiment of die cut levels;
FIG. 4 is a schematic view of an embodiment of a die cutting die;
FIG. 5 is a schematic view of a die cut product of the present invention as it is being tested;
FIG. 6 is a diagram of a die cut product testing apparatus;
FIG. 7 is a schematic view of a die-cut product of the present invention at a level to be tested;
FIG. 8 is a schematic view of a prior art die cut piece product being tested for stratification;
FIG. 9 is a schematic diagram of the test results of the die-cut product of the present invention;
FIG. 10 is a schematic illustration of the test results of a prior art die cut product;
the reference numbers in the figures indicate: the device comprises a gluing unit 1, a first release film discharging roller 11, a first release film 111, a double-sided adhesive discharging roller 12, a copper foil double-sided adhesive pressing roller 120, a copper foil double-sided adhesive 121, a copper foil black single-sided adhesive discharging roller 13, a black single-sided adhesive pressing roller 130, a black single-sided adhesive 131, a black PET132, a PCB 140, a die cutting unit 2, a die cutting machine 21, a waste discharging roller 22, a material collecting unit 3, a material collecting roller 31 and a bending die 4.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
The utility model provides a prevent that fold copper foil cross cutting piece of buckling makes and uses cutting device, as figure 1, the device includes in proper order along material area direction of transfer:
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-level material tape; 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 attaching unit 1, the black single-sided adhesive 131 is attached above the copper foil double-sided adhesive 121, and the first release film 111 is attached below the copper foil double-sided adhesive 121 to form a first-level material tape. The material of the black single-sided adhesive 131 includes a polyester film and an adhesive. The black single-sided adhesive 131 has a tack of at least 7.5N/25 mm. A copper foil double-sided adhesive tape pressing roller 120 for rolling the copper foil double-sided adhesive tape 121 on the first release film 111 is further arranged above the material tape. A black single-sided adhesive material pressing roller 130 for rolling the black single-sided adhesive 131 on the copper foil double-sided adhesive 121 is further arranged above the material belt.
The die cutting unit 2 is used for die cutting the copper foil double-sided adhesive tape 121 and the black single-sided adhesive tape 131 in the primary material tape into patterns in a die-cut product and forming a finished product of the fold-preventing copper foil die-cut product; the die cutting unit 2 includes a die cutter 21 for cutting the primary tape and a waste discharge roller 22 for discharging the cutting waste. The die-cut waste at this time includes only the frame waste after the black single-sided adhesive 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 cut by the cutting die a is matched with the pattern of the die-cut piece formed by die-cutting the double-sided adhesive tape 121 of the copper foil, and the blade angle of the cutting die a is 15-20 degrees, as shown in figure 4.
And the material receiving unit 3 is used for rolling the finished product of the fold-preventing copper foil die-cut piece. The material receiving unit 3 comprises a material receiving roller 31 for winding the finished product of the fold-preventing copper foil die-cutting piece.
A method for manufacturing a bending-fold-preventing copper foil die-cut piece by using the die-cutting device comprises the following steps:
(1) laminating is taken to the one-level material: sequentially attaching the copper foil double-sided adhesive 121 and the black single-sided adhesive 131 above the first release film 111 by using the attaching unit 1 to form a primary tape;
(2) die cutting and waste discharge of the primary material belt: utilizing the die cutting unit 2 to die cut and discharge the primary material belt to form a finished product of the bending-resistant folded copper foil die-cut piece;
(3) and (3) rolling a product: and winding the finished product of the bending-preventing and wrinkling copper foil die-cutting piece by using the material receiving unit 3.
After removing the first release film 111 of the manufactured fold-preventing copper foil die-cut piece, as shown in fig. 5-7, attaching the fold-preventing copper foil die-cut piece to a PCB 140, and then performing a bending test in a bending die 4, after the test, it is found that the fold-preventing copper foil die-cut piece does not have the phenomena of wrinkling and displacement after being bent, the product reject ratio is 0%, and the performance of the whole finished product is not affected, as shown in fig. 9.
Similarly, the existing die-cut product is attached to the PCB 140, and then the bending test is performed in the bending die 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 will have wrinkles, if the black PET132 is cracked by being laminated with other components, copper exposure conduction will occur, the shielding function will be seriously affected, and the defective rate is as high as 20%, as shown in fig. 10.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a prevent fold copper foil cross cutting piece preparation and use cutting device that bends, its characterized in that, the device includes in proper order along material area direction of transfer:
the laminating unit (1) is used for sequentially laminating the first release film (111), the copper foil double-sided adhesive tape (121) and the black single-sided adhesive tape (131) to form a first-level material tape;
the die cutting unit (2) is used for die cutting the copper foil double-sided adhesive tape (121) and the black single-sided adhesive tape (131) in the primary material tape into patterns in a die-cut product and forming a finished product of the fold-preventing copper foil die-cut product;
and the material receiving unit (3) is used for rolling the finished product of the fold-preventing copper foil die-cut piece.
2. The die cutting device for manufacturing the fold-preventing copper foil die-cut piece as claimed in claim 1, wherein the attaching unit (1) comprises a first release film unwinding roller (11) unwinding a first release film (111), a copper foil double-sided adhesive unwinding roller (12) unwinding a copper foil double-sided adhesive (121), and a black single-sided adhesive unwinding roller (13) unwinding a black single-sided adhesive (131);
after passing through the attaching unit (1), the black single-sided adhesive (131) is attached above the copper foil double-sided adhesive (121), and the first release film (111) is attached below the copper foil double-sided adhesive (121) to form a first-grade material belt.
3. The die-cutting device for manufacturing the fold-preventing copper foil die-cut piece as claimed in claim 2, wherein the material of the black single-sided adhesive (131) comprises a polyester film and an adhesive.
4. The die-cutting device for making the fold-preventing copper foil die-cut piece as claimed in claim 2, wherein the black single-sided adhesive (131) has a viscosity of at least 7.5N/25 mm.
5. The die cutting device for manufacturing the fold-preventing copper foil die-cut piece as claimed in claim 2, wherein a copper foil double-sided adhesive tape pressure roller (120) for rolling the copper foil double-sided adhesive tape (121) on the first release film (111) is further arranged above the material tape.
6. The die-cutting device for manufacturing the fold-preventing copper foil die-cut piece as claimed in claim 2, wherein a black single-sided adhesive nip roller (130) for rolling the black single-sided adhesive (131) on the copper foil double-sided adhesive (121) is further disposed above the material tape.
7. The die cutting device for manufacturing the fold-resistant copper foil die-cut piece according to claim 1, wherein the die cutting unit (2) comprises a die cutting machine (21) for cutting a primary material belt and a waste discharging roller (22) for discharging cutting waste.
8. The die cutting device for manufacturing the fold-proof copper foil die-cut piece according to claim 7, wherein a cutting die a is arranged on the die cutting machine (21), and the cutting level of the cutting die a sequentially comprises a black single-sided adhesive tape (131) and a copper foil double-sided adhesive tape (121) from top to bottom.
9. The die-cutting device for making the fold-preventing copper foil die-cut piece as claimed in claim 8, wherein the pattern A cut by the cutting die a is matched with the pattern of the die-cut piece formed by die-cutting the double-sided adhesive tape (121) of the copper foil, and the blade angle of the cutting die a is 15-20 °.
10. A method for manufacturing a crease-resistant copper foil die-cut piece by using the die-cutting device of claim 1, wherein the method comprises the following steps:
(1) laminating is taken to the one-level material: sequentially attaching a copper foil double-sided adhesive tape (121) and a black single-sided adhesive tape (131) above a first release film (111) by using an attaching unit (1) to form a primary material tape;
(2) die cutting and waste discharge of the primary material belt: utilizing a die cutting unit (2) to die cut and discharge the primary material belt to form a finished product of the bending-resistant folded copper foil die-cut piece;
(3) and (3) rolling a product: and winding the finished product of the bending-proof and wrinkling-proof copper foil die-cut piece by using the material receiving unit (3).
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
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| CN114571532A true CN114571532A (en) | 2022-06-03 |
| CN114571532B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115260937A (en) * | 2022-07-21 | 2022-11-01 | 苏州伟铂瑞信电子科技有限公司 | Copper foil die-cutting processing method with anti-wrinkle function |
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