CN115431344A - Die cutting process for side-edge-wrapped graphite - Google Patents
Die cutting process for side-edge-wrapped graphite Download PDFInfo
- Publication number
- CN115431344A CN115431344A CN202210945439.6A CN202210945439A CN115431344A CN 115431344 A CN115431344 A CN 115431344A CN 202210945439 A CN202210945439 A CN 202210945439A CN 115431344 A CN115431344 A CN 115431344A
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- Prior art keywords
- adhesive tape
- graphite
- die
- pressing
- cutting process
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Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 78
- 239000010439 graphite Substances 0.000 title claims abstract description 78
- 238000005520 cutting process Methods 0.000 title claims abstract description 39
- 239000002390 adhesive tape Substances 0.000 claims abstract description 97
- 238000003825 pressing Methods 0.000 claims abstract description 48
- 238000010030 laminating Methods 0.000 claims abstract description 35
- 239000002699 waste material Substances 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000007493 shaping process Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 14
- 238000004080 punching Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000002372 labelling Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000009998 heat setting Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- B26D7/27—Means for performing other operations combined with cutting
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses a die cutting process of side-wrapped graphite.A laminating machine laminates a lower adhesive tape and a release film; cutting the adhesive tape shape by the small hole sleeve position flat plate die; waste material is discharged from the laminating machine; pressing the edge of the lower adhesive tape by using a pressing jig; the laminating machine is used for laminating the adhesive tape; the small hole nesting flat plate is die-cut to form the shape of the adhesive tape; waste material is discharged from the laminating machine; pressing the edge of the upper adhesive tape by using a pressing jig; and heating and shaping by a heating jig to form a finished product. Through the process, on one hand, a hollow-out area is avoided from being generated on the side edge of the graphite, and the appearance problem and the layering problem are effectively improved; on the other hand, in a limited size range, the use area of graphite is fully utilized, the graphite can be manufactured without the appearance reduction, and the heat dissipation efficiency can be improved by about 10%; on the other hand, the scheme can be reasonably used according to the requirement of the product structure, and can replace part of metal heat dissipation parts.
Description
Technical Field
The invention relates to a die cutting process, in particular to a die cutting process of side-wrapped graphite.
Background
With the development of the industry, the requirement of electronic equipment on heat dissipation is higher and higher, and when the conventional thick graphite in the prior art is manufactured, the problem that the graphite side cannot be completely wrapped by using upper and lower adhesive tapes exists, so that a hollow area is generated; in addition, in a limited size range, the graphite appearance needs to be reduced for manufacturing the product edge, so that the effective area cannot be fully utilized for heat dissipation.
Therefore, those skilled in the art have endeavored to provide a die-cutting process of side-wrapped graphite that can effectively solve the above technical problems.
Disclosure of Invention
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a die-cutting process for side-wrapped graphite, which can effectively solve the above-mentioned technical problems.
In order to realize the purpose, the invention provides a die cutting process of side-wrapped graphite, which comprises the following steps:
s1: the adhesive tape and the release film are attached by an attaching machine;
s2: cutting the adhesive tape shape by the small hole sleeve position flat plate die;
s3: waste material is discharged from the laminating machine;
s4: pressing the edge of the lower adhesive tape by using a pressing jig;
s5: the laminating machine is used for laminating the adhesive tape;
s6: the small hole nesting flat plate is die-cut to form the shape of an adhesive tape;
s7: waste material is discharged from the laminating machine;
s8: pressing the edge of the upper adhesive tape by using a pressing jig;
s9: heating and shaping through a heating jig to form a finished product;
preferably, after S9, the method further comprises slicing or rolling the heated finished product.
Preferably, the cut or rolled product is inspected to determine whether the product is qualified, and the qualified product is packaged.
Preferably, the label-printing process is performed on the packaged product.
Preferably, in S2 and S6, both the tape-out profile on the die and the tape-on-die profile are larger than the graphite profile.
Preferably, before S1, the method further comprises the following steps:
and (4) SS1: cutting the raw materials;
and (4) SS2: laminating graphite by using a laminating machine;
and (4) SS3: punching graphite by using a small-hole nesting flat-plate die-cutting machine;
wherein, after the SS3 step is completed, the S1 step can be performed.
Preferably, when the raw material is slit or stripped, a proper raw material specification can be designed according to the size of a product, wherein one side of the raw material specification is 3-5mm larger than the product, and the raw material is slit/stripped according to the specification.
Preferably, thick graphite is attached to the auxiliary material, and the auxiliary material is used as the carrier tape for assisting, so that the graphite is convenient to die cut.
Preferably, the auxiliary material is a release film or a silica gel protective film.
The beneficial effects of the invention are: through the process, on one hand, a hollow-out area is prevented from being generated on the side edge of the graphite, and the appearance problem and the layering problem are effectively improved; on the other hand, in a limited size range, the use area of graphite is fully utilized, the graphite can be manufactured without the appearance reduction, and the heat dissipation efficiency can be improved by about 10%; on the other hand, the scheme is flexible, can be reasonably used according to the requirements of product structures, and even can replace partial metal heat dissipation parts, thereby being a great breakthrough in the field of heat dissipation.
Drawings
Fig. 1 is a schematic structural diagram of a prior art graphite production.
Fig. 2 is a schematic structural level diagram of components such as an upper adhesive tape and a lower adhesive tape.
FIG. 3 is a schematic cross-sectional view of an upper adhesive tape used in conjunction with a lower adhesive tape.
Fig. 4 is a schematic view of a press-fit structure of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
in the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the figure: the device comprises an upper template 1, a jig 2, graphite 6, a hard material 7, a lower template 8, an upper adhesive tape 11, a lower adhesive tape 12, a release film 13 and a hollowed-out area 16. In the invention, the upper adhesive tape is a single-sided back adhesive, and the lower adhesive tape is a double-sided back adhesive.
As shown in fig. 1 to 4, a die cutting process of side-wrapped graphite includes the following embodiments:
example 1 comprises the following steps:
s1: the laminating machine laminates a lower adhesive tape and a release film (A die); in this embodiment, the adhesive tape needs to be attached first, i.e. the double-sided adhesive tape, so that the side of the adhesive tape can be prevented from being exposed.
S2: cutting the adhesive tape shape (B die) by the small hole sleeve position flat die; in this embodiment, the die cutting sticky tape appearance needs to be bigger than the graphite appearance, and specific scope is according to graphite thickness for the standard, and if graphite thickness is 0.5mm, sticky tape overall dimension needs to be bigger than the unilateral 0.5mm of graphite so, can make sticky tape and graphite side can better bonding like this.
S3: discharging waste materials by using a laminating machine; specifically, waste materials of the outer frame of the adhesive tape need to be discharged firstly when the waste materials of the outer frame of the adhesive tape are discharged, so that the waste discharge is prevented from being influenced by the fact that the adhesive tape is damaged after the adhesive tape is pressed in the next process;
s4: pressing the edge of the lower adhesive tape by using a pressing jig (C die); as a pressing schematic diagram, the mode of pressing the upper part and the lower part is used to ensure that the side edges of the adhesive tape can be completely pressed, and the size of the pressing jig is about 0.05mm larger than that of the single side of the graphite appearance.
S5: the laminating machine is used for laminating the adhesive tape; the upper adhesive tape is a single-sided adhesive, so that the adhesive can cover the surface of the lower adhesive tape after being pressed, and the side edge of the adhesive tape can be prevented from being exposed.
S6: punching the adhesive tape shape on the small hole sleeve position flat plate die (D die); the appearance of the die-cutting adhesive tape needs to be larger than that of graphite, the specific range is based on the thickness of the graphite, if the thickness of the graphite is 0.5mm, the appearance size of the adhesive tape needs to be larger than that of a single side of the graphite by 0.5mm, and therefore the adhesive tape can be better bonded with the side edge of the graphite.
S7: waste material is discharged from the laminating machine; waste materials of the outer frame of the adhesive tape are discharged, and the waste materials need to be discharged firstly, so that the waste discharge is avoided being influenced by the damage of the adhesive tape after the next process of pressing.
S8: pressing the edge of the upper adhesive tape by using a pressing jig (E die); as a pressing schematic diagram, the mode of pressing the upper part and the lower part is used to ensure that the side edges of the adhesive tape can be completely pressed, and the size of the pressing jig is about 0.05mm larger than that of the single side of the graphite appearance.
S9: heating and shaping through a heating jig to form a finished product; the concrete mode does, uses the heating tool, adds the heat setting to the product side, because the sticky tape can produce deformation after being heated, can make the pressfitting effect of side sticky tape perfect more stereotype like this, difficult bounce-back.
Example 2
S1: the laminating machine laminates a lower adhesive tape and a release film (A die); in this embodiment, the adhesive tape needs to be attached first, i.e. the double-sided adhesive tape, so that the side of the adhesive tape can be prevented from being exposed.
S2: cutting the adhesive tape shape (B die) by the small hole sleeve position flat die; in this embodiment, the die cutting sticky tape appearance needs to be bigger than the graphite appearance, and specific scope is according to graphite thickness for the standard, and if graphite thickness is 0.5mm, sticky tape overall dimension needs to be bigger than the unilateral 0.5mm of graphite so, can make sticky tape and graphite side can better bonding like this.
S3: waste material is discharged from the laminating machine; specifically, waste materials of the outer frame of the adhesive tape are discharged, and the waste materials need to be discharged firstly, so that the waste discharge is prevented from being influenced by the damage of the adhesive tape after the next process is carried out;
s4: pressing the edge of the lower adhesive tape by using a pressing jig (C die); as a pressing schematic diagram, the mode of pressing the upper part and the lower part is used to ensure that the side edges of the adhesive tape can be completely pressed, and the size of the pressing jig is about 0.05mm larger than that of the single side of the graphite appearance.
S5: the laminating machine is used for laminating the adhesive tape; the upper adhesive tape is a single-sided adhesive, so that the adhesive can cover the surface of the lower adhesive tape after being pressed, and the side edge of the adhesive tape can be prevented from being exposed.
S6: punching the adhesive tape shape on the small hole sleeve position flat plate die (D die); the appearance of the die-cutting adhesive tape needs to be larger than that of graphite, the specific range is based on the thickness of the graphite, if the thickness of the graphite is 0.5mm, the appearance size of the adhesive tape needs to be larger than that of a single side of the graphite by 0.5mm, and therefore the adhesive tape can be better bonded with the side edge of the graphite.
S7: discharging waste materials by using a laminating machine; waste materials of the outer frame of the adhesive tape are discharged, and waste needs to be discharged firstly, so that waste discharge caused by damage of the adhesive tape after the next process of pressing is avoided.
S8: pressing the edge of the upper adhesive tape by using a pressing jig (E die); as the pressing schematic diagram, the mode of upper pressing and lower pressing is used to ensure that the side edge of the adhesive tape can be completely pressed, and the size of the pressing jig is about 0.05mm larger than the size of the single edge of the graphite appearance.
S9: heating and shaping through a heating jig to form a finished product; the concrete mode does, uses the heating tool, adds the heat setting to the product side, because the sticky tape can produce deformation after being heated, can make the pressfitting effect of side sticky tape perfect more stereotype like this, difficult bounce-back.
S10: and slicing or rolling the heated finished product. Specifically, according to the requirement, the material is made into a coil material or a sheet material, the sheet material is cut by a cutting machine, and the coil material is directly rolled;
s11: and inspecting the product which is sliced or rolled to check whether the product is qualified or not, and packaging the qualified product.
S12: and (5) performing a labeling process on the packaged product.
Example 3
And (4) SS1: cutting the raw materials; when the raw material is cut or stripped, the proper raw material specification can be designed according to the product size, the single side of the raw material specification is 3-5mm larger than the product, and the cutting/stripping is carried out according to the specification.
And (4) SS2: laminating graphite by using a laminating machine; the thick graphite is attached to the auxiliary material, and the auxiliary material is used as the carrier tape for assistance, so that the graphite is convenient to die cut. The auxiliary material is a release film or a silica gel protective film and the like.
And SS3: punching graphite by using a small-hole nesting flat die-cutting machine;
wherein, after the SS3 step is completed, the S1 step can be carried out;
s1: the laminating machine laminates a lower adhesive tape and a release film (A die); in this embodiment, the adhesive tape needs to be attached first, i.e. the double-sided adhesive tape, so that the side of the adhesive tape can be prevented from being exposed.
S2: cutting the adhesive tape shape (B die) by a small hole sleeve position flat plate die; in this embodiment, the die-cut adhesive tape needs to be larger than the graphite in shape, the specific range is based on the graphite thickness, if the graphite thickness is 0.5mm, the adhesive tape shape needs to be larger than the graphite single side by 0.5mm, so that the adhesive tape and the graphite side edge can be bonded better.
S3: waste material is discharged from the laminating machine; specifically, waste materials of the outer frame of the adhesive tape need to be discharged firstly when the waste materials of the outer frame of the adhesive tape are discharged, so that the waste discharge is prevented from being influenced by the fact that the adhesive tape is damaged after the adhesive tape is pressed in the next process;
s4: pressing the edge of the lower adhesive tape by using a pressing jig (C die); as the pressing schematic diagram, the mode of upper pressing and lower pressing is used to ensure that the side edge of the adhesive tape can be completely pressed, and the size of the pressing jig is about 0.05mm larger than the size of the single edge of the graphite appearance.
S5: the laminating machine is used for laminating the adhesive tape; the upper adhesive tape is a single-sided adhesive, so that the lower adhesive tape can be covered after being pressed, and the side edge of the adhesive tape can be prevented from being exposed.
S6: punching the adhesive tape shape on the small hole sleeve position flat plate die (D die); the shape of the die-cutting adhesive tape needs to be larger than that of graphite, the specific range is based on the thickness of the graphite, if the thickness of the graphite is 0.5mm, the shape and the size of the adhesive tape need to be larger than that of a single side of the graphite by 0.5mm, and therefore the adhesive tape can be better bonded with the side edge of the graphite.
S7: waste material is discharged from the laminating machine; waste materials of the outer frame of the adhesive tape are discharged, and the waste materials need to be discharged firstly, so that the waste discharge is avoided being influenced by the damage of the adhesive tape after the next process of pressing.
S8: pressing the edge of the upper adhesive tape by using a pressing jig (E die); as a pressing schematic diagram, the mode of pressing the upper part and the lower part is used to ensure that the side edges of the adhesive tape can be completely pressed, and the size of the pressing jig is about 0.05mm larger than that of the single side of the graphite appearance.
S9: heating and shaping by a heating jig to form a finished product; the concrete mode does, uses the heating tool, adds the heat setting to the product side, because the sticky tape can produce deformation after being heated, can make the pressfitting effect of side sticky tape perfect more stereotype like this, difficult bounce-back.
S10: and slicing or rolling the heated finished product. Specifically, according to the requirement, the material is made into a coil material or a sheet material, the sheet material is cut into sheets by a cutting machine, and the coil material is directly rolled;
s11: and inspecting the product which is sliced or rolled to check whether the product is qualified or not, and packaging the qualified product. The inspection mode in this embodiment is manual full inspection operation, and is mainly used for inspecting whether the product appearance and the side pressing effect are qualified.
S12: and (5) labeling and delivering the packaged product.
In the present invention, example 3 is the most preferred example.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the above teachings. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.
Claims (9)
1. A die cutting process for side-wrapped graphite is characterized by comprising the following steps:
s1: the laminating machine laminates the lower adhesive tape and the release film;
s2: cutting the adhesive tape shape by a small hole sleeve position flat plate die;
s3: waste material is discharged from the laminating machine;
s4: pressing the edge of the lower adhesive tape by using a pressing jig;
s5: the laminating machine is used for laminating the adhesive tape;
s6: the small hole nesting flat plate is die-cut to form the shape of the adhesive tape;
s7: waste material is discharged from the laminating machine;
s8: pressing the edge of the upper adhesive tape by using a pressing jig;
s9: and heating and shaping through a heating jig to form a finished product.
2. The die cutting process of side-wrapped graphite according to claim 1, further comprising, after the step S9, slicing or rolling the heated product.
3. The die cutting process of side-seamed graphite as claimed in claim 2, wherein the product after being cut or rolled is inspected for acceptability and the qualified product is packaged.
4. A die cutting process for side-wrapped graphite according to claim 3, wherein the finished packaged product is subjected to a labeling process.
5. The die-cutting process for side-wrapped graphite according to claim 1, wherein in S2 and S6, both the tape-out profile on die-cut and the tape-on-die profile on die-cut are larger than the graphite profile.
6. The die cutting process of side-wrapped graphite according to any one of claims 1 to 5, further comprising, before S1, the steps of:
SS1: cutting the raw materials;
and (4) SS2: laminating graphite by using a laminating machine;
and (4) SS3: punching graphite by using a small-hole nesting flat-plate die-cutting machine;
wherein, after the SS3 step is completed, the S1 step can be performed.
7. The die cutting process of side-wrapped graphite according to claim 6, wherein in the SS1, when the raw material is cut or stripped, a proper raw material specification can be designed according to the product size, one side of the raw material specification is 3-5mm larger than the product, and the raw material is cut/stripped according to the specification.
8. The die cutting process of side-wrapped graphite according to claim 6, wherein in SS2, the thick graphite is attached to the auxiliary material, and the auxiliary material is used as a carrier tape for assisting in die cutting of the graphite.
9. The die cutting process of side-wrapped graphite according to claim 8, wherein the auxiliary material is a release film or a silicone protective film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210945439.6A CN115431344A (en) | 2022-08-08 | 2022-08-08 | Die cutting process for side-edge-wrapped graphite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210945439.6A CN115431344A (en) | 2022-08-08 | 2022-08-08 | Die cutting process for side-edge-wrapped graphite |
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| Publication Number | Publication Date |
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| CN115431344A true CN115431344A (en) | 2022-12-06 |
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| CN202210945439.6A Pending CN115431344A (en) | 2022-08-08 | 2022-08-08 | Die cutting process for side-edge-wrapped graphite |
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| CN214561507U (en) * | 2021-02-04 | 2021-11-02 | 苏州鸿凌达电子科技有限公司 | High-power graphite wrapping edge and wrapping equipment based on die cutting machining process |
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2022
- 2022-08-08 CN CN202210945439.6A patent/CN115431344A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101321063B1 (en) * | 2013-07-09 | 2013-10-29 | (주)세경하이테크 | Transfer method for composite graphite film |
| CN109795179A (en) * | 2019-02-14 | 2019-05-24 | 昆山尚为新材料有限公司 | Material-saving graphite asynchronous double-wrapping process |
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