CN210193409U - Polyimide film fixing mold for producing graphite heat-conducting film - Google Patents
Polyimide film fixing mold for producing graphite heat-conducting film Download PDFInfo
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- CN210193409U CN210193409U CN201920858428.8U CN201920858428U CN210193409U CN 210193409 U CN210193409 U CN 210193409U CN 201920858428 U CN201920858428 U CN 201920858428U CN 210193409 U CN210193409 U CN 210193409U
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Abstract
The utility model belongs to the technical field of the mould structure, especially, relate to a fixed mould of polyimide film for producing graphite heat conduction membrane. The utility model discloses a set up curb plate, fastening hole, spiro union pipe, trompil, centre gripping groove, rectangular channel and the block on the end plate and press from both sides the mode of tight unit, reach the effect that fixed mould conveniently opened and shut the dismouting and use. The utility model has the advantages of fixed mould dismouting convenient operation is swift, and multiple package assembly stability is high, and magnet attraction position is automatic became invalid after the high temperature carbonization among the package assembly, makes things convenient for the polyimide film to take out the operation, and carbonization in-process tar discharges easily and volatilizes to and be applicable to the polyimide film and carry out the sodium chloride solution and soak and the carbonization operation.
Description
Technical Field
The utility model belongs to the technical field of the mould structure, especially, relate to a fixed mould of polyimide film for producing graphite heat conduction membrane.
Background
The production process of the graphite heat-conducting film mainly comprises five steps of polyimide film slitting and overlapping in a fixed mould, sodium chloride solution soaking, carbonization, graphitization and calendering, wherein the polyimide film is placed in the fixed mould and is used for moving in the steps of soaking and carbonization, and the polyimide film is taken out after the carbonization is finished, but the existing fixed mould has the following two problems:
firstly, tar generated during the carbonization of the polyimide film is not easy to flow out of the fixed mould and volatilize;
secondly, the fixed mould is not enough in structural strength and inconvenient to disassemble and assemble.
The patent publication No. CN106273093A, Chinese patent application No. 2017.01.04, discloses a high-efficiency heat exchange forming die and an application method thereof, and the high-efficiency heat exchange forming die comprises a die base body with a forming cavity, wherein the outer surface layer of the cavity in the die base body is a super heat conduction film layer which has high heat conductivity coefficient and enables the temperature difference between a forming material and the film layer to be reduced, and a heat insulation film layer with a heat insulation function is arranged between the super heat conduction film layer and the die base body.
However, the forming die disclosed in the patent of the invention has the problem of low structural strength.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fixed mould of polyimide film for producing graphite heat conduction membrane, it can be through setting up curb plate, fastening hole, spiral shell connecting pipe, trompil, centre gripping groove, rectangular channel and the block on the end plate and press from both sides the mode of tight unit, reaches the effect that fixed mould conveniently opened and shut the dismouting and use. The utility model has the advantages of fixed mould dismouting convenient operation is swift, and multiple package assembly stability is high, and magnet attraction position is automatic became invalid after the high temperature carbonization among the package assembly, makes things convenient for the polyimide film to take out the operation, and carbonization in-process tar discharges easily and volatilizes to and be applicable to the polyimide film and carry out the sodium chloride solution and soak and the carbonization operation.
The utility model provides a technical scheme that above-mentioned problem adopted is: the utility model provides a fixed mould of polyimide film for producing graphite heat conduction membrane, includes two end plates, and both ends are supported respectively two on the end plate and end to end enclose into four curb plates of rectangle framework, both ends dock two respectively the spiro union pipe in the fastening hole on the end plate, and set up and be in tar outflow volatile trompil when being used for the carbonization on end plate and the curb plate.
The further preferred technical scheme is as follows: the inner ring surfaces at two ends of the screwed pipe are provided with threaded sections, a bolt penetrates through the fastening hole and is arranged on the threaded sections in a screwed mode, and at least one screwed pipe is arranged on the outer side of the side plate.
The further preferred technical scheme is as follows: and a clamping groove for clamping and carrying is arranged at the side edge of the outer side surface of the end plate.
The further preferred technical scheme is as follows: and rectangular grooves for clamping and fixing the four side plates are formed in the opposite inner side surfaces of the end plates.
The further preferred technical scheme is as follows: and the side plate is provided with a clamping unit which penetrates through the opening and is used for tensioning and fixing the screwed pipe on the side plate.
The further preferred technical scheme is as follows: the clamping and clamping unit comprises a clamping ring clamped and arranged on the outer ring surface of the bolt connection pipe, a screw rod penetrating through the opening and with the outer side end in bolt connection with the ring body groove, and a fastening nut in bolt connection with the inner side end of the screw rod.
The further preferred technical scheme is as follows: the clamping and clamping unit further comprises a nut groove arranged on the inner side face of the side plate.
The further preferred technical scheme is as follows: the clamping and clamping unit further comprises an arc permanent magnet block which is adhered to the inner ring surface of the clamping ring and demagnetized by heating in the high-temperature carbonization process of the polyimide film so as to open the side plate and take out the polyimide film for subsequent graphitization operation, and a permanent magnet ring which is adhered to the inner ring surface of the threaded pipe and is used for installing the side plate in a magnetic attraction and fixing mode with the arc permanent magnet block when the polyimide film is soaked in a sodium chloride solution.
The further preferred technical scheme is as follows: the clamping and clamping unit further comprises support rings which are arranged on the inner ring surface of the threaded connection pipe in a bonding mode and located on two sides of the permanent magnet ring, and the support rings are provided with the threaded sections close to the openings on two sides of the threaded connection pipe.
The further preferred technical scheme is as follows: and 1-2 clamping and clamping units are arranged on the screwed pipe.
The utility model discloses a set up curb plate, fastening hole, spiro union pipe, trompil, centre gripping groove, rectangular channel and the block on the end plate and press from both sides the mode of tight unit, reach the effect that fixed mould conveniently opened and shut the dismouting and use. The utility model has the advantages of fixed mould dismouting convenient operation is swift, and multiple package assembly stability is high, and magnet attraction position is automatic became invalid after the high temperature carbonization among the package assembly, makes things convenient for the polyimide film to take out the operation, and carbonization in-process tar discharges easily and volatilizes to and be applicable to the polyimide film and carry out the sodium chloride solution and soak and the carbonization operation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the middle side plate and the rectangular groove of the present invention.
Fig. 3 is a schematic diagram of the position structure of the middle clamping unit of the present invention.
Fig. 4 is a schematic view of the position structure of the middle permanent magnet ring and the support ring of the present invention.
Detailed Description
The following description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Example (b): as shown in attached figures 1, 2, 3 and 4, the polyimide film fixing mold for producing the graphite heat-conducting film comprises two end plates 1, wherein two ends of the two end plates respectively abut against the end plates 1 and four side plates 2 which are connected end to form a rectangular frame body, two ends of the two end plates are respectively abutted against two screwed pipes 4 of fastening holes 3 on the end plates 1, and openings 5 are formed in the end plates 1 and the side plates 2 and used for tar outflow volatilization during carbonization.
In this embodiment, before the polyimide film needs to be soaked in a sodium chloride solution to form sodium chloride powder for separation between films, the fixed mold is assembled, and is immersed in the sodium chloride solution after being clamped, and after carbonization, the fixed mold is opened and the semi-finished graphite heat-conducting film is taken out to perform the following graphitization operation.
In addition, two end plate 1 and four curb plate 2 are used for enclosing and lay polyimide film's fixed cavity, and 4 both ends of spiro union pipe are in the spiro union is fixed on the fastening hole 3, be used for 2 both ends of curb plate press from both sides tightly end plate 1, and tar outflow when trompil 5 is used for the carbonization volatilizees, avoids tar to adhere to on polyimide film in order to reduce final graphite heat conduction membrane purity.
Threaded sections 9 are arranged on inner ring surfaces at two ends of the screwed pipe 4, a bolt penetrates through the fastening hole 3 and is arranged on the threaded sections in a screwed mode, and at least one screwed pipe 4 is arranged on the outer side of the side plate 2.
In this embodiment, the bolt is screwed on the threaded section 9, so that the end plate 1 is fixed on the screwed pipe 4 and clamps the side plate 2, so that the side plate 2 has a preliminary separation preventing effect.
And a clamping groove 6 for clamping and carrying is arranged at the side edge of the outer side surface of the end plate 1. And rectangular grooves 7 for clamping and fixing the four side plates 2 are formed in the opposite inner side surfaces of the end plates 1.
In this embodiment, four side plates 2 are connected end to form a frame with a rectangular ring-shaped cross section, and the frame is clamped in the rectangular grooves 7 on two sides, so that the installation stability of the four side plates 2 is further improved, and the clamping grooves 6 are used for clamping and carrying the whole fixed mold.
In addition, in this embodiment, a rectangular frame is surrounded by four side plates 2, rather than a direct complete frame, so that the polyimide films can be stacked conveniently, the polyimide films can be prevented from being placed deep into the frame, and the polyimide films can be prevented from colliding when the polyimide films are placed deep by directly stacking the four side plates 2 and then inserting the four side plates onto the rectangular groove 7 to surround the polyimide film stack.
The side plate 2 is provided with a clamping unit 8 which penetrates through the opening 5 and is used for tensioning and fixing the screwed pipe 4 on the side plate 2.
In this embodiment, the nipple 4 is used for four axial fixity curb plate 2, rectangular channel 7 is used for four preliminary hoop fixed curb plate 2, and block clamping unit 8 is used for the cooperation rectangular channel 7 improves the hoop shock resistance of curb plate 2 avoids 2 hoops of curb plate break inwards after colliding with easily.
The clamping and clamping unit 8 comprises a clamping ring 801 clamped on the outer annular surface of the screwed pipe 4, a screw 803 passing through the opening 5 and screwed on the annular groove 802 at the outer end, and a fastening nut 804 screwed on the inner end of the screw 803. The snap-in clamping unit 8 further comprises a nut groove 805 provided on the inner side surface of the side plate 2.
In this embodiment, the central angle of the snap ring 801 is greater than 180 °, and the snap ring is sleeved on the nipple 4, and then the ring groove 802 is aligned to the opening 5, and then the outer side is screwed with the screw 803, and the inner side is screwed with the fastening nut 804, so that the side plate 2 is ensured to have a circumferential support connection effect on the nipple 4, and the stability of the whole structure is ensured.
On the other hand, the nut groove 805 is used for accommodating the fastening nut 804, so as to prevent the fastening nut 804 from protruding inwards to collide with the polyimide film, one end of the screwed pipe 4 is screwed on the end plate 1 and then the clamping unit 8 is installed, and finally the end plate 1 at the other end is installed, so that the screwed pipe 4 and the clamping unit 8 are both stable and effective.
The clamping and clamping unit 8 further comprises an arc permanent magnet block 806 which is arranged on the inner annular surface of the clamping ring 801 in an adhering mode, is heated and demagnetized in the high-temperature carbonization process of the polyimide film so as to open the side plate 2 and take out the polyimide film for subsequent graphitization operation, and a permanent magnet ring 807 which is arranged on the inner annular surface of the screwed pipe 4 in an adhering mode and is used for installing the side plate 2 in a magnetic attraction and fixing mode with the arc permanent magnet block 806 when the polyimide film is soaked in a sodium chloride solution. The clamping and clamping unit 8 further comprises a support ring 808 which is arranged on the inner annular surface of the screwed pipe 4 in an adhering manner and is located at two sides of the permanent magnet ring 807, and the threaded section 9 is arranged at the position, close to the opening at two sides of the screwed pipe 4, of the support ring 808. And 1-2 clamping and clamping units 8 are arranged on the screwed pipe 4.
In this embodiment, according to the carbonization back fixed mould need be opened in order to take out as graphite heat conduction membrane semi-manufactured goods the process of polyimide film stack sets for, introduces above-mentioned permanent magnet material for it is fixed in order to strengthen to handle to attract the effect and effectively inhale when sodium chloride soaks easily, and is heated the demagnetization when the carbonization, will fixed mould's fixed knot constructs by preceding block adds the magnetic attraction, reduces to single block structure, in order to make things convenient for the mould to unpack apart, has improved greatly fixed mould's dismouting convenience of use.
The arc permanent magnet blocks 806 and the magnetic poles of the arc surfaces of the permanent magnet rings 807 are opposite in attraction, the ring surfaces of the support rings 808 are bonded on the inner ring surfaces of the screwed pipe 4, and the ring end planes are bonded with the ring planes of the permanent magnet rings 807, so that the good installation stability of the permanent magnet rings 807 is ensured, and further, the support rings 808 made of rubber are deformed and failed after high-temperature carbonization, so that the failure of the magnetic attraction structure when the fixed mold needs to be opened is further ensured, the step of opening the mold is greatly reduced, and finally the fixed mold has the advantages of simplicity and convenience in disassembly and assembly.
More importantly, if the opening speed of the fixed mold is too slow after the carbonization is completed, the polyimide film inside the fixed mold is easy to be excessively carbonized, so that the reasonable loss of the permanent magnet is also worth.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. These are non-inventive modifications, which are intended to be protected by patent laws within the scope of the appended claims.
Claims (10)
1. The utility model provides a fixed mould of polyimide film for producing graphite heat conduction membrane which characterized in that: including two end plates (1), both ends are supported respectively two on end plate (1) and end to end enclose into four curb plates (2) of rectangle framework, both ends dock two respectively the spiro union pipe (4) of fastening hole (3) on end plate (1) and set up and be in volatile trompil (5) of tar outflow when being used for the carbonization on end plate (1) and curb plate (2).
2. The mold for fixing polyimide film used for producing graphite heat conductive film according to claim 1, wherein: threaded sections (9) are arranged on inner ring surfaces at two ends of the screwed pipe (4), a bolt penetrates through the fastening hole (3) and is arranged on the threaded sections in a screwed mode, and at least one screwed pipe (4) is arranged on the outer side of the side plate (2).
3. The mold for fixing polyimide film used for producing graphite heat conductive film according to claim 1, wherein: and a clamping groove (6) for clamping and carrying is arranged at the side edge of the outer side surface of the end plate (1).
4. The mold for fixing polyimide film used for producing graphite heat conductive film according to claim 1, wherein: and rectangular grooves (7) used for clamping and fixing the four side plates (2) are formed in the opposite inner side surfaces of the end plates (1).
5. The polyimide film fixing mold for producing a graphite heat conductive film according to claim 2, wherein: and the side plate (2) is provided with a clamping unit (8) which penetrates through the open hole (5) and is used for tensioning and fixing the screwed pipe (4) on the side plate (2).
6. The polyimide film fixing mold for producing a graphite heat conductive film according to claim 5, wherein: the clamping and clamping unit (8) comprises a clamping ring (801) clamped and arranged on the outer ring surface of the screwed pipe (4), a screw rod (803) penetrating through the opening (5) and screwed and arranged on the ring body groove (802) at the outer side end, and a fastening nut (804) screwed and arranged on the inner side end of the screw rod (803).
7. The mold for fixing polyimide film used for producing graphite heat conductive film according to claim 6, wherein: the clamping and clamping unit (8) further comprises a nut groove (805) arranged on the inner side surface of the side plate (2).
8. The mold for fixing polyimide film used for producing graphite heat conductive film according to claim 7, wherein: the clamping and clamping unit (8) further comprises an arc permanent magnet block (806) which is arranged on the inner annular surface of the clamping ring (801) in an adhering mode, is heated and demagnetized in the high-temperature carbonization process of the polyimide film so as to open the side plate (2), takes out the polyimide film to perform subsequent graphitization operation, and a permanent magnet ring (807) which is arranged on the inner annular surface of the screwed pipe (4) in an adhering mode and is used for installing the side plate (2) in a magnetic attraction fixing mode through the arc permanent magnet block (806) when the polyimide film is soaked in a sodium chloride solution.
9. The mold for fixing polyimide film used for producing graphite heat conductive film according to claim 8, wherein: the clamping and clamping unit (8) further comprises support rings (808) which are arranged on the inner annular surface of the screwed pipe (4) in an adhering mode and located at the positions of two sides of the permanent magnet ring (807), and the threaded sections (9) are arranged at the positions, close to the openings of the two sides of the screwed pipe (4), of the support rings (808).
10. The polyimide film fixing mold for producing a graphite heat conductive film according to claim 5, wherein: and 1-2 clamping and clamping units (8) are arranged on the screwed pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858428.8U CN210193409U (en) | 2019-06-10 | 2019-06-10 | Polyimide film fixing mold for producing graphite heat-conducting film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858428.8U CN210193409U (en) | 2019-06-10 | 2019-06-10 | Polyimide film fixing mold for producing graphite heat-conducting film |
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| Publication Number | Publication Date |
|---|---|
| CN210193409U true CN210193409U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920858428.8U Active CN210193409U (en) | 2019-06-10 | 2019-06-10 | Polyimide film fixing mold for producing graphite heat-conducting film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117010A (en) * | 2019-06-10 | 2019-08-13 | 浙江华炜新材料有限公司 | It is a kind of for producing the Kapton fixing mould of graphite guide hotting mask |
-
2019
- 2019-06-10 CN CN201920858428.8U patent/CN210193409U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110117010A (en) * | 2019-06-10 | 2019-08-13 | 浙江华炜新材料有限公司 | It is a kind of for producing the Kapton fixing mould of graphite guide hotting mask |
| CN110117010B (en) * | 2019-06-10 | 2024-04-05 | 浙江华炜新材料有限公司 | Polyimide film fixing die for producing graphite heat conducting film |
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