CN214604803U

CN214604803U - Graphite film extraction knife and graphite film processing device

Info

Publication number: CN214604803U
Application number: CN202120639302.9U
Authority: CN
Inventors: 颜庄蔚
Original assignee: Shenzhen Leishi Thermal Management Technology Co ltd
Current assignee: Shenzhen Leishi Thermal Management Technology Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-11-05
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses a graphite membrane draws sword and graphite membrane processingequipment, the graphite membrane draws the sword and includes: the cutter body, the cutter body is equipped with the die cavity that is used for holding the graphite product of concave, and around draw the piece in the die cavity, it has the face of drawing that is used for pressing the transparent adhesive tape in graphite frame waste material district to draw the piece, the die cavity has the opening of avoiding transparent adhesive tape and product graphite district contact, it sets up with the opening homonymy to draw the face. The technical scheme of the utility model can pressfitting scotch tape and graphite frame waste material district through drawing the piece, make scotch tape only adhere graphite frame waste material district to separate product graphite district and graphite frame waste material district.

Description

Graphite film extraction knife and graphite film processing device

Technical Field

The utility model relates to a graphite cross cutting technical field especially relates to a graphite membrane draws sword and graphite membrane processingequipment.

Background

At present, artificially synthesized graphite film products need to be punched according to a set shape in the die cutting production process, frame waste materials can be left after the graphite films are punched, and the frame waste materials need to be removed in order to realize continuous production. Because the graphite film is soft and does not resist tensile rise, the monolayer graphite material is easy to be broken when being discharged. In the prior art, a second protective film is additionally added to serve as a reinforcing material, and the second protective film is used for pulling away frame waste. However, the above method requires an additional protective film in the existing process, which results in high cost and reduced die cutting production efficiency; the waste is more, and the probability that the waste finally enters a product is high; in addition, when the graphite film is subjected to die cutting, the graphite film and the first layer of protective film are punched together, and waste materials after the first layer of protective film is punched cannot be completely taken away by the second layer of protective film, so that the waste materials enter an interlayer structure of a graphite film product, and the product performance is invalid. In the related technology, the frame waste can be bonded by using the transparent adhesive tape, but the transparent adhesive tape can only bond the whole graphite film when being bonded, and cannot effectively separate the graphite product from the waste.

In view of the above, it is necessary to design a graphite film extracting tool.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one technical problem, the main object of the present invention is to provide a graphite film extraction knife.

In order to achieve the above object, the utility model discloses a technical scheme do: the utility model provides a graphite film draws sword includes the cutter body, the cutter body is concave to be equipped with the die cavity that is used for holding the graphite product, and centers on the piece of drawing of die cavity, it has the face of drawing that is used for pressing the transparent adhesive tape in graphite frame waste material district to draw the piece, the die cavity has the opening of avoiding transparent adhesive tape and product graphite district contact, it sets up with the opening homonymy to draw the face.

Wherein, the number of the die cavities is a plurality, and the die cavities are divided into at least two rows or two rows.

Wherein, the number of the die cavities in each row or line is at least two.

Wherein, graphite membrane extraction sword still includes: the mold cavity connecting structure comprises a first connecting block and a second connecting block, wherein the first connecting block is used for connecting two adjacent rows or two adjacent rows of mold cavities, the second connecting block is used for connecting adjacent mold cavities in the same row or the same row, and the first connecting block and the second connecting block are mutually connected.

The inner wall of the die cavity expands outwards in the direction away from the graphite product, and a space is formed between the inner wall of the die cavity and the graphite product.

The first connecting block and the second connecting block are provided with pressing surfaces, and the pressing surfaces and the extracting surfaces are arranged in a plane.

The extracting block, the first connecting block and the second connecting block are made of metal alloy which can be bent into a ring shape.

Wherein, the thickness of the extraction block is 1-20mm, and the depth of the mold cavity is more than or equal to 6 mm.

In order to achieve the above object, the utility model discloses a another technical scheme does: provides a graphite film processing device, which comprises the graphite film extracting knife.

The technical scheme of the utility model mainly include the cutter body, wherein the cutter body divide into the die cavity and around the piece that draws of die cavity, when the cutter pressfitting scotch tape of this scheme of utilization, draw the face of drawing of piece and directly contact with the scotch tape, with scotch tape pressfitting to graphite frame waste material district, and the die cavity corresponds product graphite district to keep apart scotch tape and product graphite district, so, when tearing from the scotch tape, only take away graphite frame waste material district, remain product graphite district. Therefore, this scheme has simple structure, and through drawing the region that piece pressfitting scotch tape corresponds graphite frame waste material district, the die cavity keeps apart the region that scotch tape corresponds product graphite district, can improve the separation effect in graphite frame waste material district and product graphite district.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a graphite film extraction knife according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

fig. 3 is a flowchart illustrating a method for removing waste materials from a graphite film die-cutting frame according to an embodiment of the present invention;

fig. 4 is a schematic diagram of stacking of PET regions and product graphite according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the description of the invention referring to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Utilize the scotch tape bonding frame waste material in being different from the correlation technique, but can only carry out the adhesion to the whole of graphite membrane when the scotch tape bonds, can not effectively separate the problem of product graphite and waste material, the utility model provides a graphite membrane draws sword. The specific structure of the graphite film extraction knife is described in the following examples.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a graphite film extraction knife according to an embodiment of the present invention; fig. 2 is a cross-sectional view taken along line a-a of fig. 1 according to the present invention. The embodiment of the utility model provides an in, this graphite membrane draws sword, include: the cutting tool comprises a cutting tool body 100, wherein a mold cavity 120 for accommodating a graphite product and an extracting block 110 surrounding the mold cavity 120 are concavely arranged on the cutting tool body 100, the extracting block 110 is provided with an extracting surface 111 for pressing a transparent adhesive tape on a graphite frame waste material area, the mold cavity 120 is provided with an opening 121 for preventing the transparent adhesive tape from contacting with a product graphite area, and the extracting surface 111 and the opening 121 are arranged on the same side.

In this embodiment, the specific shape of the extraction block 110 may be set according to actual requirements. The number and size of the mold cavities 120 can be designed according to the actual requirements. When the extraction block 110 presses the transparent adhesive tape, the opening 121 of the mold cavity 120 separates the transparent adhesive tape from the graphite frame waste area to prevent the transparent adhesive tape and the graphite frame waste area from being bonded, so that the transparent adhesive tape is torn away to remove the graphite frame waste by the torn transparent adhesive tape, and the graphite frame waste area is left, thereby improving the separation effect of the graphite frame waste area and the graphite frame waste area.

In one embodiment, the number of mold cavities 120 is multiple, and the multiple mold cavities 120 are divided into at least two rows or two columns. In this embodiment, since the mold cavities 120 are disposed corresponding to the graphite regions of the product, the mold cavities 120 are disposed in a row or a column, and the waste regions of the graphite frames in the same row or the same column can be pressed simultaneously during processing, thereby improving the die cutting efficiency. Further, there are at least two mold cavities 120 in each row. In view of the die cutting efficiency, in the embodiment, the number of the die cavities 120 in the same row or the same column can be flexibly set according to the requirement, so as to ensure the continuity of the process and improve the die cutting efficiency. In a preferred embodiment, the number of the mold cavities 120 may be distributed in a matrix, so that a plurality of graphite products can be die-cut at one time, and the continuity of the die-cutting process can be ensured, thereby improving the die-cutting efficiency of the graphite film.

Further, the graphite film extraction knife further comprises: a first connecting block 131 connecting two adjacent rows or columns of the mold cavities 120 and a second connecting block 132 connecting adjacent mold cavities 120 in the same row or column, the first connecting block 131 and the second connecting block 132 being connected to each other.

In this embodiment, each mold cavity 120 can be divided into individual areas by the first connecting block 131, the second connecting block 132 and the extracting block 110, so as to avoid the connection of the graphite areas of adjacent products and improve the quality of graphite products. In addition, the first connecting block 131 and the second connecting block 132 are connected with each other, so that the structure is more compact, and the intervals of the mold cavities 120 are uniform. It is understood that the first connecting block 131 and the second connecting block 132 may be connected in a perpendicular or intersecting manner, and the specific structure may be more practical. Further, the first connecting block 131 and the second connecting block 132 both have a pressing surface 133, and the pressing surface 133 and the extracting surface 111 are arranged in a plane. The laminating face is the plane setting with extraction face 111, can guarantee in the laminating face with extract the area that face 111 fully pressfitting scotch tape corresponds graphite frame waste material district, make scotch tape correspond graphite frame waste material district fully contact, be convenient for improve the separation effect in graphite frame waste material district and product graphite district. Further, the inner wall of the mold cavity 120 expands outward away from the graphite product, and a gap is formed between the inner wall of the mold cavity and the graphite product. The distance of the distance in the scheme is 0.5-1mm, and the integrity of the graphite product can be ensured through the distance.

Further, the thickness of the extraction block 110 is 1-20mm, and the depth of the mold cavity 120 is greater than or equal to 6 mm. In this embodiment, the thickness of the extraction block 110 may be 1mm, 5mm, 10mm, 15mm, or 20 mm. The depth of the cavity 120 may be 6mm, 8mm, 10 mm.

The embodiment of the utility model provides an in, this graphite membrane processingequipment, draw the sword including the graphite membrane. For the specific structure of the graphite film extraction knife, please refer to the above embodiments, which are not described herein again. Because the graphite film extracting knife is applied to the graphite film processing device, the graphite film processing device has all the advantages and effects of the graphite film extracting knife.

Referring to fig. 3, fig. 3 is a flowchart illustrating a method for removing waste of a graphite film die-cutting frame according to an embodiment of the present invention. The embodiment of the utility model provides an in, this graphite film cross cutting frame waste material method of getting rid of, including the following step: s110, preparing an artificial graphite film to be die-cut; s120, attaching a first layer of low-viscosity protective film to one side of the artificial graphite film; s130, punching one side, away from the first layer of low-viscosity protective film, of the artificial graphite film to divide the artificial graphite film into a product graphite area and a graphite frame waste area; s140, arranging a transparent adhesive tape on one punched side of the artificial graphite film, and adhering the transparent adhesive tape to the graphite frame waste area; s150, tearing off the transparent adhesive tape so as to remove the graphite frame waste by utilizing the torn transparent adhesive tape and leave a product graphite area.

When the graphite film is subjected to die cutting, an artificial graphite film to be die-cut is selected in advance, then a first layer of low-viscosity protective film is attached to one side of the artificial graphite film, the artificial graphite film is die-cut and divided into a graphite frame waste area and a graphite frame waste area, and then the graphite frame waste area is bonded to the graphite frame waste area through a transparent adhesive tape, and the transparent adhesive tape separates the graphite frame waste area. Specifically, after the product graphite area is obtained, the scheme further comprises laminating a double-sided adhesive tape, adhering and separating the first layer of protective film body waste material by removing the second layer of low-viscosity protective film, laminating the single-sided adhesive tape, die-cutting the graphite film outer frame, discharging the frame waste material, and collecting the final finished product.

In a specific embodiment, the adhering the scotch tape to the graphite frame waste region specifically includes:

presetting an extracting knife capable of being rolled into a ring shape, wherein the extracting knife capable of being rolled into the ring shape comprises an extracting block and a die cavity concavely arranged in the middle of the extracting block, the extracting block corresponds to a graphite frame waste material area, and the die cavity corresponds to a product graphite area;

and pressing the extraction block of the extraction knife to the graphite frame waste material, and aligning the mold cavity to the product graphite area, so that the transparent adhesive tape is bonded to the graphite frame waste material area and the product graphite area is isolated.

In this embodiment, the above-mentioned extracting knife includes an extracting block and a mold cavity, the extracting block corresponds to the graphite frame waste region, and the mold cavity corresponds to the product graphite region. During pressing, the extraction block directly presses the graphite frame waste area, and directly adheres the transparent adhesive tape to the graphite frame waste area; the mold cavity isolates the region of the transparent adhesive tape and the graphite product, the transparent adhesive tape can not be bonded with the graphite area of the product, and thus, the transparent adhesive tape is torn away, so that the torn transparent adhesive tape is utilized to remove the graphite frame waste, and the graphite area of the product is left.

Further, the thickness of the extraction block is 1-20mm, and the depth of the mold cavity is greater than or equal to 6 mm. In this embodiment, the thickness of the extraction block may be 1mm, 5mm, 10mm, 15mm, 20 mm. The depth of the die cavity can be 6mm, 8mm and 10 mm.

Furthermore, the number of the die cavities is multiple, the die cavities are divided into at least two rows or two rows, and the number of the die cavities in each row is at least two. In consideration of the die cutting efficiency, in the embodiment, the number of the die cavities can be flexibly set according to the requirement. The quantity of die cavity can be the matrix distribution, so, can once cross cutting a plurality of product graphite, can also guarantee the continuity of cross cutting technology, and then promote the cross cutting efficiency of graphite film.

In a specific embodiment, the artificial graphite film includes a graphite film and a PET layer disposed on the graphite film, and the die-cutting is performed on a side of the artificial graphite film away from the first low-viscosity protective film to divide the artificial graphite film into a product graphite region and a graphite frame waste region, and specifically includes:

presetting an inner frame cutter, wherein the inner frame cutter is arranged corresponding to a product graphite area;

and punching a PET layer by utilizing the inner frame cutter to form a PET area and a product graphite area on a boundary between the product graphite area and the graphite frame waste area, wherein the product graphite area is positioned in the middle of the PET area.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating stacking of a PET region and graphite product according to an embodiment of the present invention. In this embodiment, an inner frame cutter is used to punch the PET area 220 and the graphite area 230, the graphite area 230 is located in the middle 220 of the PET area, that is, the area in the middle of the PET area 220 is larger than the graphite area 230, and then the PET area 220 and the graphite frame waste area are bonded by using a transparent adhesive tape, so that the transparent adhesive tape is torn off to remove the graphite frame waste by using the torn transparent adhesive tape, and the graphite area is left.

In a specific embodiment, the edge of the PET area exceeds the edge of the product graphite area by 0.3-1.0 mm. In this embodiment, the distance from the edge of the PET area to the edge of the graphite area of the product may be 0.3, 0.6, or 1.0mm, so as to ensure that the PET area completely blocks the graphite area of the product, so as to separate the graphite area from the graphite frame waste area.

The above only is the preferred embodiment of the present invention, not therefore the limitation of the patent scope of the present invention, all the technical solutions of the present invention are conceived to utilize the equivalent structure transformation made by the contents of the specification and the drawings, or directly/indirectly applied to other related technical fields all included in the patent protection scope of the present invention.

Claims

1. A graphite film extraction knife, comprising: the cutter body, the cutter body is equipped with the die cavity that is used for holding the graphite product of concave, and around draw the piece in the die cavity, it has the face of drawing that is used for pressing the transparent adhesive tape in graphite frame waste material district to draw the piece, the die cavity has the opening of avoiding transparent adhesive tape and product graphite district contact, it sets up with the opening homonymy to draw the face.

2. The graphite film extraction blade of claim 1, wherein the number of the mold cavities is plural, and the plural mold cavities are divided into at least two rows or two columns.

3. The graphite film extraction blade of claim 2, wherein the number of cavities in each row or column is at least two.

4. The graphite film extraction blade of claim 3, further comprising: the mold cavity connecting structure comprises a first connecting block and a second connecting block, wherein the first connecting block is used for connecting two adjacent rows or two adjacent rows of mold cavities, the second connecting block is used for connecting adjacent mold cavities in the same row or the same row, and the first connecting block and the second connecting block are mutually connected.

5. The graphite film extraction blade of claim 3, wherein the inner wall of the die cavity flares away from the graphite product and is spaced from the graphite product.

6. The graphite film extraction knife of claim 4, wherein the first and second connecting blocks each have a press face that is planar with the extraction surface.

7. The graphite film extraction knife of claim 2, wherein the extraction block, the first connecting block and the second connecting block are made of a metal alloy capable of being bent into a ring shape.

8. The graphite film extraction knife of claim 1, wherein the extraction block has a thickness of 1-20mm and the cavity has a depth of 6mm or greater.

9. A graphite film processing apparatus, characterized in that it comprises a graphite film extraction blade according to any one of claims 1 to 8.