CN114714434A - Flat-cutter die cutting process for double-sided local back glue - Google Patents
Flat-cutter die cutting process for double-sided local back glue Download PDFInfo
- Publication number
- CN114714434A CN114714434A CN202210543452.9A CN202210543452A CN114714434A CN 114714434 A CN114714434 A CN 114714434A CN 202210543452 A CN202210543452 A CN 202210543452A CN 114714434 A CN114714434 A CN 114714434A
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- Prior art keywords
- film
- cutting
- flat
- adhesive
- double
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- 238000005520 cutting process Methods 0.000 title claims abstract description 89
- 239000003292 glue Substances 0.000 title claims abstract description 24
- 239000000853 adhesive Substances 0.000 claims abstract description 63
- 230000001070 adhesive effect Effects 0.000 claims abstract description 59
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000002699 waste material Substances 0.000 claims abstract description 26
- 239000012467 final product Substances 0.000 claims abstract description 5
- 238000002955 isolation Methods 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229920006351 engineering plastic Polymers 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 238000012805 post-processing Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002313 adhesive film Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 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
- B26D7/18—Means for removing cut-out material or waste
-
- 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
-
- 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
- B26D7/18—Means for removing cut-out material or waste
- B26D2007/189—Mounting blanking, stripping and break-out tools
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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)
Abstract
The invention discloses a flat knife die cutting process for double-sided local gum, which comprises the following steps of: laying and cutting a first blue film and a first back adhesive on the bottom supporting film; laying and cutting a support material on the first gum; adhering an isolating film on the supporting material, cutting the isolating film and removing waste materials of the isolating film to obtain a reserved area on the supporting material; laying a second back adhesive on the reserved area and the isolating film, cutting the reserved area and the isolating film into a required shape, and removing waste materials of the second back adhesive and the isolating film; laying a second blue film on the second back glue, cutting the second back glue into a required shape, and performing post-treatment to obtain a final product; wherein the adhesive strength of the release film is not more than 35gf/25 mm. The flat-cutter die-cutting process with the double-sided local gum can improve the efficiency and the precision of the die-cutting process and reduce the production cost of the die-cutting process.
Description
Technical Field
The invention relates to a flat knife die cutting process, in particular to a flat knife die cutting process with double-sided local gum.
Background
The double-sided local back glue type die-cutting product is widely applied to products such as 3C and new energy, has the functions of bonding/connecting conduction/shielding and the like, and the product with the structure has the advantages that the effect of one-time lamination is achieved by the superposition of multiple layers of back glue, and the assembly efficiency is improved. For such products, currently, a common processing method uses circular knives for processing or uses a plurality of groups of jigs for arrangement and assembly, but both the two modes have certain defects, such as circular knife process processing, and the realization of local gum by using a circular knife superposition process, the efficiency is high, but the cost of a die/equipment is high, and for products with large specification (the size is more than 250mm and 250 mm), the production is not easy, and the common tolerance needs to be more than +/-0.15 mm. The tool multiunit is arranged manual equipment and is laminated, and the gum shape about the cross cutting goes out adopts the mode of tool laminating, realizes the function of local gum, and this type of technology is suitable for the proof, minimum batch processing to the assembly tolerance needs 0.3 mm.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a flat-cutter die-cutting process with double-sided local gum, which can improve the efficiency and precision of the die-cutting process and reduce the production cost of the die-cutting process.
In order to achieve the above object, an embodiment of the present invention provides a flat-blade die cutting process with double-sided local back glue, which includes the following steps: laying and cutting a first blue film and a first back adhesive on the bottom supporting film; laying and cutting a support material on the first back glue; an isolation film is adhered to the supporting material, the isolation film is cut, waste materials of the isolation film are removed, and a reserved area is obtained on the supporting material; laying a second back adhesive on the reserved area and the isolating film, cutting the reserved area and the isolating film into a required shape, and removing waste materials of the second back adhesive and the isolating film; laying a second blue film on the second back glue, cutting the second back glue into a required shape, and carrying out post-treatment to obtain a final product; wherein the adhesive strength of the release film is not more than 35gf/25 mm.
In one or more embodiments of the present invention, the step of laying and cutting the first blue film and the first back adhesive on the base film includes: laying the first blue film on the carrier film and cutting the first blue film into a required shape, and laying a first back adhesive on the first blue film and cutting the first blue film into a required shape.
In one or more embodiments of the present invention, the step of laying and cutting the first blue film and the first back adhesive on the base film includes: and sequentially paving the first blue film and the first back glue on the carrier film, and cutting the first blue film and the first back glue into required shapes.
In one or more embodiments of the invention, the support material is a metal material or an engineering plastic material.
In one or more embodiments of the present invention, the metal material is a copper foil or an aluminum foil; and the engineering plastic material is PET/PC/PP.
In one or more embodiments of the present invention, the reserved area includes an avoiding area and an adhering area for adhering the second back adhesive.
In one or more embodiments of the present invention, the release film is a release film with adhesive on one side.
In one or more embodiments of the present invention, the thickness of the support material is 0.05 to 0.75 mm.
In one or more embodiments of the invention, the post-processing step comprises: and removing the waste material of the second blue film.
In one or more embodiments of the present invention, the thickness of the isolation film is 0.03 to 0.08mm
Compared with the prior art, according to the flat-knife die-cutting process for the double-sided local gum, the isolation film is added in the step of the process for sticking the second gum on the support material, the sticking strength of the isolation film is not more than 35gf/25mm, and the redundant waste material of the second gum on the support material can be removed, so that the problems that the waste material of the second gum on the support material is not well removed or part of the waste material of the second gum is remained on the support material are solved. The flat-cutter die-cutting process with the double-sided local gum has the advantages of high die-cutting precision and high die-cutting efficiency.
Drawings
FIG. 1 is a flow diagram of a double-sided partially adhesive backed flatknife die cutting process according to one embodiment of the present invention;
FIG. 2 is a schematic illustration of a support material, a second adhesive film, and a release film during implementation of a double-sided partially adhesive backed flatknife die cutting process according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of a backing material and an adhesive during an implementation of a double-sided partial-adhesive flat-knife die-cutting process according to an embodiment of the present invention;
fig. 4 is an exploded view of a double-sided partially adhesive-backed die-cut product according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1, the flat knife die cutting process of the double-sided partial back adhesive according to the preferred embodiment of the present invention comprises the following steps:
and S1, laying and cutting the first blue film and the first back adhesive on the bottom supporting film.
S2, laying and cutting the supporting material on the first back glue.
And S3, adhering an isolating film on the supporting material, cutting the isolating film and removing the waste material of the isolating film to obtain a reserved area on the supporting material.
And S4, laying a second back adhesive on the reserved area and the isolating film, cutting to obtain a required shape, and removing the waste material of the second back adhesive and the isolating film.
And S5, laying a second blue film on the second back glue, cutting into a required shape, and carrying out post-treatment to obtain a final product.
Wherein the adhesive strength of the release film is not more than 35gf/25 mm.
In the above steps, before the second adhesive is laid on the supporting material, a layer of adhesive isolating film is laid, the isolating film is cut, then the waste material of the isolating film is removed, so that a reserved area is obtained on the supporting material, the main part of the reserved area can be understood as a position for providing the second adhesive on the supporting material, and the part of the reserved area, which is adhered to the second adhesive, is in a required shape, namely, the second adhesive of the part is not required to be separated from the supporting material at a later stage. Because the redundant second gum is adhered to the isolation film, after the second gum is cut, the waste material of the second gum is removed along with the isolation film. The sticking strength of the release film does not exceed 35gf/25mm, so that the release film is easily separated from the support material, and no residual glue is left on the support material.
In the flat-knife die-cutting process, the adopted cutting processes can be all flat-knife die-cutting processes, and the flat-knife die-cutting process not only solves the limitation of circular knife production, but also solves the problems of low efficiency and high cost of manual assembly.
In one embodiment, the step of laying and cutting the first blue film and the first back adhesive on the backing film in S1 may include: a first blue film is laid on a carrier film and cut into a required shape, and then a first back adhesive is laid on the first blue film and cut into a required shape.
In another specific embodiment, in S1, the step of laying and cutting the first blue film and the first back adhesive on the backing film may further include: and sequentially paving a first blue film and a first back adhesive on the carrier film, and cutting the first blue film and the first back adhesive into a required shape. The embodiment can improve the cutting efficiency of the process. The cutting depth of different flat cutters is controlled.
The supporting material is a metal material or an engineering plastic material. The specific metal material may be copper foil or aluminum foil. The engineering plastic material can be PET/PC/PP.
In a specific embodiment, as shown in fig. 2, in S3, the reserved area 11 may include an avoiding area 111 and an attaching area 112 for attaching the second adhesive. When the second back glue 3 is laid on the reserved area 11 and the isolation film 2, one part of the second back glue 3 can be adhered to the adhering area 112, one part of the second back glue 3 can be adhered to the isolation film 2, and the isolation film 2 has thickness, so that the part between the two parts, namely the part of the second back glue 3 above the avoiding area 11, is in a suspended state. When the isolation film 2 is cut, the size of the avoiding area 11 can be adjusted according to the material and thickness of the second back adhesive 3 and the thickness of the isolation film 2.
The isolation film can be a single-sided adhesive isolation film. The thickness of the isolation film can be 0.03-0.08 mm. The adhesive strength of the release film is not more than 35gf/25 mm. The adhesive strength is too high, which may cause the situation of adhesive residue when the isolating film is separated from the supporting material. When the surface of the support material is flat, a separator having a bonding strength of 6 to 12gf/25mm may be selected. When the surface of the support material is rough, a separator having a bonding strength of 12 to 35gf/25mm may be selected.
The thickness of the supporting material is 0.05-0.75 mm. The thickness of the support film needs to be sufficient to allow die cutting.
In S5, the post-processing step may include: and removing the waste material of the second blue film. In S5, the post-processing step may further include: and removing the waste material of the second blue film, and carrying out die cutting on the whole product to obtain the final product.
The flat cutter die cutting process can be realized in a mode of small hole nesting.
When the back glue is laid on the two opposite surfaces of the supporting material 1 according to the requirement and the size of the back glue is not consistent with that of the supporting material, the processing process can be realized by the flat-knife die cutting process. The size of the back adhesive is different from the size of the supporting material, and it can be understood that the back adhesive is only partially laid on the surface of the supporting material, and a specific embodiment can be shown in fig. 3, in which the back adhesive is partially laid on both the upper surface and the lower surface of the supporting material 1 in fig. 3.
Compared with manual assembly, the manual assembly of 200 holes/h can achieve 6000 holes/h by the flat-cutter die-cutting process, and the efficiency can be improved by 30 times.
The tolerance of the circular knife processing technology is at least +/-0.15 mm, the tolerance of manual assembly is at least +/-0.3 mm, and the tolerance of the flat knife die cutting technology can reach +/-0.1 mm, so that the precision of the product is greatly improved.
The flat-knife die-cutting process of the double-sided partial-back adhesive of the present invention will be described in detail with reference to specific embodiments.
Example 1
As shown in FIG. 4, the double-sided local-gum die-cut product in the drawing is produced by sequentially arranging a blue coating, an upper gum, an aluminum foil, a lower gum and a lower blue coating from top to bottom.
Firstly, setting typesetting/spacing according to a conventional design, and designing the hole position of the auxiliary pilot pin for trepanning (small hole trepanning process). Then, the auxiliary material (namely the carrier film), the lower blue film and the lower back adhesive are attached to the die, laminated and attached in sequence, then cut by a flat knife die cutting process, and part of waste materials are removed.
Then, aluminum foil is laid and cut by a flat knife die cutting process, and partial waste materials are removed. And then laying an isolating film, and cutting by using a flat-cutter die cutting process to remove part of waste materials. And then spreading the back adhesive on the aluminum foil and the isolating film, cutting by using a flat knife die cutting process, and removing the residual isolating film and the waste material coated with the back adhesive in a mode of removing the residual isolating film. Laying blue film, cutting by flat-knife die-cutting process, and removing part of waste material.
Because the die can die-cut multiple rows of products at the last time, the die-cut appearance of the whole product can remove the waste materials which are not cut and removed among the multiple rows of products in the process, thereby obtaining a plurality of final products.
In conclusion, the flat-knife die cutting process for the double-sided local back glue has the beneficial effects that: through in the step of the technology of pasting the second gum on the supporting material, increased the barrier film, the adhesion strength of barrier film does not exceed 35gf/25mm, can realize getting rid of the waste material of unnecessary second gum on the supporting material to solved the waste material of second gum on the supporting material and well got rid of or the waste material of second gum has some to remain the problem on the supporting material. The flat-cutter die-cutting process with the double-sided local gum has the advantages of high die-cutting precision and high die-cutting efficiency.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. A flat-cutter die-cutting process for double-sided local gum is characterized by comprising the following steps:
laying and cutting a first blue film and a first back adhesive on the bottom supporting film;
laying and cutting a support material on the first gum;
adhering an isolating film on the supporting material, cutting the isolating film and removing waste materials of the isolating film to obtain a reserved area on the supporting material;
laying a second back adhesive on the reserved area and the isolating film, cutting the reserved area and the isolating film into a required shape, and removing waste materials of the second back adhesive and the isolating film; and
laying a second blue film on the second back glue, cutting the second back glue into a required shape, and carrying out post-treatment to obtain a final product;
wherein the sticking strength of the release film is not more than 35gf/25 mm.
2. The flat-knife die-cutting process for double-sided partial-back adhesive according to claim 1, wherein the step of laying and cutting the first blue film and the first back adhesive on the backing film comprises: laying the first blue film on the carrier film and cutting the first blue film into a required shape, and laying a first back adhesive on the first blue film and cutting the first blue film into a required shape.
3. The double-sided partial-adhesive flat-knife die-cutting process according to claim 1, wherein the step of laying and cutting the first blue film and the first adhesive on the backing film comprises: and sequentially laying the first blue film and the first back adhesive on the bottom supporting film, and cutting the first blue film and the first back adhesive into required shapes.
4. The flat-knife die-cutting process of double-sided partial-back adhesive according to claim 3, wherein the supporting material is a metal material or an engineering plastic material.
5. The flat-knife die-cutting process for double-sided partial-back adhesive according to claim 4, wherein the metal material is copper foil or aluminum foil; and the engineering plastic material is PET/PC/PP.
6. The flat-knife die-cutting process for double-sided partial-adhesive application according to claim 1, wherein the reserved area comprises an escape area and an adhesion area for adhesion of the second adhesive.
7. The flat-knife die-cutting process for double-sided partial-backsize as recited in claim 1, wherein the release film is a single-sided adhesive release film.
8. The flat-knife die-cutting process for double-sided partial-back adhesive according to claim 1, wherein the thickness of the supporting material is 0.05-0.75 mm.
9. The double-sided partial-adhesive flat-knife die-cutting process of claim 1, wherein the post-processing step comprises: and removing the waste material of the second blue film.
10. The flat-knife die-cutting process for the double-sided partial-back adhesive according to claim 1, wherein the thickness of the isolation film is 0.03-0.08 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210543452.9A CN114714434A (en) | 2022-05-18 | 2022-05-18 | Flat-cutter die cutting process for double-sided local back glue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210543452.9A CN114714434A (en) | 2022-05-18 | 2022-05-18 | Flat-cutter die cutting process for double-sided local back glue |
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| Publication Number | Publication Date |
|---|---|
| CN114714434A true CN114714434A (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210543452.9A Pending CN114714434A (en) | 2022-05-18 | 2022-05-18 | Flat-cutter die cutting process for double-sided local back glue |
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| CN112895667A (en) * | 2021-01-19 | 2021-06-04 | 合肥美凯电子有限公司 | Double-sided back local adhesive punching process |
| CN113308199A (en) * | 2021-06-09 | 2021-08-27 | 苏州高泰电子技术股份有限公司 | Adhesive tape lapping process |
| CN113733206A (en) * | 2020-05-30 | 2021-12-03 | 昊佰电子科技（上海）有限公司 | Method for manufacturing copper foil die-cut piece |
| CN113830609A (en) * | 2021-09-15 | 2021-12-24 | 深圳市腾鑫精密电子芯材科技有限公司 | Precise mesh pasting process for electronic audio equipment |
| CN114311145A (en) * | 2020-09-29 | 2022-04-12 | 昊佰电子科技（上海）有限公司 | Method for manufacturing foam die-cutting piece for preventing handle film from being stuck on material belt |
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2022
- 2022-05-18 CN CN202210543452.9A patent/CN114714434A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104087195A (en) * | 2014-07-11 | 2014-10-08 | 隆扬电子（昆山）有限公司 | Two-sided conductive fabric adhesive tape and production technology thereof |
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