CN110526242B - Two-step graphite calendaring device and calendaring method - Google Patents
Two-step graphite calendaring device and calendaring method Download PDFInfo
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- CN110526242B CN110526242B CN201910887186.XA CN201910887186A CN110526242B CN 110526242 B CN110526242 B CN 110526242B CN 201910887186 A CN201910887186 A CN 201910887186A CN 110526242 B CN110526242 B CN 110526242B
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- graphite
- rolling
- calendaring
- release film
- laminating
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- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 99
- 239000010439 graphite Substances 0.000 title claims abstract description 99
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000003490 calendering Methods 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000010408 film Substances 0.000 claims abstract description 80
- 238000005096 rolling process Methods 0.000 claims abstract description 49
- 238000010030 laminating Methods 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000013039 cover film Substances 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims description 14
- 239000006260 foam Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000003475 lamination Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 5
- 229920002545 silicone oil Polymers 0.000 description 4
- 238000005187 foaming Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910021383 artificial graphite Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/205—Preparation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of material preparation, and particularly relates to a two-step graphite calendaring device and a calendaring method. The invention comprises a main rolling structure, wherein the main rolling structure comprises a graphite unreeling shaft, a cover film unreeling shaft, a main rolling upper roller, a cover film unreeling shaft, a first release film unreeling shaft and a main rolling lower roller, and further comprises an additionally arranged secondary rolling laminating mechanism, the secondary laminating rolling structure comprises a secondary laminating rolling upper roller, a graphite unreeling shaft, a first release film reeling, a secondary laminating rolling lower roller, a second release film unreeling shaft and a second servo motor, the secondary laminating rolling upper roller is arranged at a discharge end of the main rolling structure, the main rolling structure is arranged on a mounting frame, a gap between the secondary laminating rolling upper roller and the secondary laminating rolling lower roller is controlled by a roller passing through the secondary laminating upper roller and the second servo motor, and the second release film unreeling shaft and the first release film reeling are fixedly arranged at a material collecting end. The invention solves the problems that graphite is easy to remain on the release film, insufficient in calendaring and the thickness of the graphite does not reach the standard, and has simple structure and convenient use.
Description
Technical Field
The invention belongs to the technical field of material preparation, and particularly relates to a two-step graphite calendaring device and a calendaring method.
Background
With the rapid development of the industry of artificially synthesized graphite, the graphite is continuously derived from the types of the used graphite. The requirements for synthetic graphite are also increasing. However, there are many uncontrollable unknowns during the graphite firing process, resulting in many appearance or thickness defects in the fired graphite. These disadvantages are directly reflected in the graphite calendaring process. The color difference and the super-thick foaming thickness of the fired graphite can directly influence the rolling of the graphite, and the traditional rolling mode of matching the release film with the cover film can not completely solve the problems, so that the irreversible influence is caused on the downstream die cutting industry of the graphite.
The release film for graphite calendaring is a main auxiliary material of heat dissipation graphite, and has the functions of reinforcing the rolled graphite film so as to strengthen the strength of the calendared graphite film, prevent the breakage of graphite during downstream customer-die cutting engineering use, and provide the following requirements for the graphite calendaring release film: a. after calendaring, forming a target thickness, and ensuring that the graphite is bubble-free; b. after the foam graphite is rolled, the peeling force of the graphite to the release film is controlled to be 6.0gf/in; c. after the die-cutting, the stripping force of graphite on the release film is stable in the die-cutting and stripping process of the release film.
In the actual production process of the heat dissipation graphite film, the fluctuation of the thickness and the fluctuation of the surface quality of the expanded graphite can cause the exceeding of the stripping force of graphite on the release film (such as more than 6.0 gf/in), and the problems that graphite scraps remain on the release film when the graphite film is stripped off the release film are caused when serious, and the like, so that the yield of a graphite calendaring product is reduced and the production of downstream customers is puzzled.
Disclosure of Invention
The invention aims to solve the technical problem of providing a two-step graphite calendaring device and a calendaring method aiming at the defects of the prior art. According to the invention, a two-step graphite calendaring method is adopted, the first step of calendaring is adopted to form the target thickness of calendaring, the second step of the release film in the first step is peeled off, and meanwhile, a new specific release film is attached to achieve the aims of light peeling force and good appearance, so that the reject ratio of graphite firing can be effectively reduced, the calendared graphite is ensured not to influence die cutting use, and the yield and the utilization ratio of artificial synthetic graphite are effectively improved.
In order to solve the technical problems, the invention adopts the following technical scheme: the two-step graphite rolling device and the rolling method are characterized by comprising the following steps:
the utility model provides a two-step method graphite calendering device, includes main calendering structure, and main calendering structure includes graphite unreel axle, lid membrane unreel axle, main calendering upper roller, lid membrane roll-up axle, first from type membrane unreel axle and main calendering lower roll, still including the secondary laminating mechanism that adds, secondary laminating calendering structure includes that secondary laminating is rolled up and is rolled up, graphite unreel the axle, first from type membrane rolling, secondary laminating is rolled down, second is rolled up from type membrane unreel axle and second servo motor, secondary laminating is rolled up the roller and is installed the discharge end at main calendering structure, and main calendering structure installs on the mounting bracket, and the clearance that secondary laminating is rolled up and is rolled down with secondary laminating is passed through roller and second servo motor control, and second is rolled up from type membrane and first from type membrane rolling fixed mounting at the receipts material end.
The primary calendaring structure is provided with a first servo motor, and the secondary calendaring laminating mechanism is synchronous with the first servo motor under the drive of a second servo motor.
The main calendaring structure and the secondary calendaring laminating mechanism are both provided with a hydraulic structure and a gap automatic adjusting device.
The rolling method of the two-step graphite rolling device comprises the following steps of:
(a) First calendaring: fixing a foam graphite raw material on a graphite unreeling shaft, fixing a first specific release film on a cover film unreeling shaft, fixing a PET raw film on the first release film unreeling shaft, enabling the first specific release film, the foam graphite raw material and the PET raw film to pass through a gap between a main calendaring upper roller and a main calendaring lower roller at the same time, and enabling the foam graphite to be pressed to a set thickness between the upper roller and the lower roller by adjusting the gap between the upper roller and the lower roller and the calendaring pressure;
(b) And (3) rolling for the second time: passing the graphite after the first time of rolling in the step (a) through a roller, then stripping the PET raw film from the raw graphite, and collecting PET raw film waste on the first release film rolling; and after the lamination is completed, the first specific release film is peeled off from the foam graphite, so that the foam graphite is smoothly laminated on the second specific release film and rolled by the graphite rolling shaft.
The first specific release film in the step (a) is positioned on the upper surface of the graphite after the first time of calendering.
In the step (a), the rolling pressure is 1-10 MPa, and the thickness of the product of the expanded graphite is controlled to be 10-100 mu m.
Compared with the prior art, the invention has the following advantages:
the invention aims at the current situation that the existing one-step calendaring device is required to meet the requirements of the thickness, the appearance and the peeling force of the rolled graphite and has very strict requirements on the release film, and therefore, a two-step graphite calendaring method is provided to reduce the peeling force and achieve the appearance standard, namely, the first step of calendaring is performed to form the rolled target thickness, and the second step is performed to peel off the release film in the first step and attach a specific release film at the same time to achieve the aims of light peeling force and good appearance.
(1) Firstly, selecting a silicone oil release film insensitive to foaming thickness and chromatic aberration of the foaming graphite (release force is 300-500 gf/in), so that the graphite forms a target thickness under the pressure action of a main calendaring mechanism compression roller, the release film is easy to peel, and even if slight bubbles exist on the release film, the appearance flatness of a final product is not affected;
(2) Secondly, rolling and attaching a specific silicone oil release film (release force is 300-500 gf/in) by adopting a secondary attaching rolling mechanism to achieve the required stripping force (less than 6.0gf/in or even less than 3.5 gf/in) and the appearance standard;
the two-step calendaring device solves the problems that graphite is easy to remain on a release film, the calendaring is insufficient, and the thickness of the graphite does not reach the standard; avoiding release dust and dirt of release film, and has simple structure and convenient use.
Drawings
FIG. 1 is a schematic structural view of a two-step graphite calendaring apparatus according to the invention.
FIG. 2 is a schematic diagram of the material run of a two-step graphite calendaring apparatus of the invention.
Reference numerals illustrate: 1-a primary calendaring structure; 1-1-graphite unreeling shaft; 1-2-cover film unreeling shaft; 1-3-main calendaring upper rolls; 1-4-cover film take-up reel; 1-5-a first release film unreeling shaft; 1-6-main calendaring lower roll; 1-7-a first servo motor; 2-a secondary casting and laminating mechanism; 2-1-laminating and calendaring the upper roller for the second time; 2-2-graphite take-up reel; 2-3-winding the first release film; 2-4-secondary laminating and calendaring lower rollers; 2-5-a second release film unreeling shaft; 2-6-second servo motor; 3-mounting rack; 4-passing through a roller.
The technical scheme of the invention is further described below with reference to specific embodiments.
Detailed Description
As shown in fig. 1, a two-step method graphite calendering device comprises a main calendering structure 1, wherein the main calendering structure comprises a graphite unwinding shaft 1-1, a cover film unwinding shaft 1-2, a main calendering upper roller 1-3, a cover film unwinding shaft 1-4, a first release film unwinding shaft 1-5 and a main calendering lower roller 1-6, and is characterized by further comprising an additionally arranged secondary calendering laminating mechanism 2, the secondary laminating calendering structure comprises a secondary laminating calendering upper roller 2-1, a graphite unwinding shaft 2-2, a first release film winding shaft 2-3, a secondary laminating calendering lower roller 2-4, a second release film unwinding shaft 2-5 and a second servo motor 2-6, the secondary laminating calendering upper roller 2-1 is arranged at the discharge end of the main calendering structure 1, the main calendering structure 1 is arranged on a mounting frame 3, a gap between the secondary laminating calendering upper roller 2-1 and the secondary laminating calendering lower roller 2-4 is controlled by a roller 4 and a second servo motor 2-6, and the second release film unwinding shaft 2-5 and the first release film winding shaft 2-3 are fixedly arranged at the discharge end of the main calendering structure.
The primary calendaring structure 1 is provided with a first servo motor 1-7, and the secondary calendaring attaching mechanism 2 is synchronous with the first servo motor 1-7 under the drive of a second servo motor 2-6.
The main calendaring structure 1 and the secondary calendaring laminating mechanism 2 are both provided with a hydraulic structure and a gap automatic adjusting device.
Fig. 2 is a schematic diagram of the material trend of a two-step graphite calendaring apparatus, where the dashed line portion is the material trend.
The rolling method of the two-step graphite rolling device comprises the following steps of:
(a) First calendaring: the method comprises the steps of fixing a raw material of the expanded graphite with the thickness of 65 mu m on a graphite unreeling shaft 1-1, fixing a first specific release film (silicone oil release film, release force of 480 gf/in) on a cover film unreeling shaft 1-2, fixing a PET raw film on a first release film unreeling shaft 1-5, enabling the first specific release film, the expanded graphite raw material and the PET raw film to pass through a gap between a main calendaring upper roller 1-3 and a main calendaring lower roller 1-6 at the same time, and enabling the expanded graphite to be pressed to a set thickness of 32 mu m between the upper roller and the lower roller by adjusting the gap between the upper roller and the lower roller and the calendaring pressure;
(b) And (3) rolling for the second time: passing the graphite after the first time of the rolling in the step (a) through a roller 4, stripping the PET raw film from the raw graphite, and collecting PET raw film waste on a first release film rolling 2-3; the first specific release film and the graphite after the first rolling continuously pass through a secondary rolling laminating mechanism 2, and simultaneously pass through a secondary laminating upper roller 2-1 and a secondary laminating lower roller 2-4 for laminating and calendering together with a second specific release film (silicone oil release film, release force of 350 gf/in) on a second release film unreeling shaft 2-5, after lamination, the first specific release film is peeled off from the expanded graphite, so that the expanded graphite is smoothly laminated on the second specific release film, and is reeled by a graphite reeling shaft 2-2, the thickness of finished graphite is 32 mu m, and the peeling force of the finished graphite on the second specific release film is 4.2gf/in.
The first specific release film in the step (a) is positioned on the upper surface of the graphite after the first time of calendering.
The calendering pressure in step (a) is 4MPa.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention. Any simple modification, variation and equivalent variation of the above embodiments according to the present invention still fall within the scope of the technical solution of the present invention.
Claims (6)
1. The utility model provides a two-step method graphite calendering device, including main calendering structure (1), main calendering structure includes graphite unwinding spool (1-1), lid membrane unwinding spool (1-2), main calendering upper roller (1-3), lid membrane winding spool (1-4), first from type membrane unwinding spool (1-5) and main calendering lower roll (1-6), a serial communication port, still including secondary laminating mechanism (2) add, secondary laminating calendering structure includes secondary laminating calendering upper roll (2-1), graphite winding spool (2-2), first from type membrane winding (2-3), secondary laminating calendering lower roll (2-4), second is from type membrane unwinding spool (2-5) and second servo motor (2-6), secondary laminating calendering upper roll (2-1) are installed at the discharge end of main calendering structure (1), main calendering structure (1) are installed on mounting bracket (3), gap between secondary laminating upper roll (2-1) and secondary laminating lower roll (2-4) passes through secondary laminating lower roll (2-4) and passes through second laminating lower roll (2-6) and is from type membrane unwinding spool (2-5) and second servo motor, the second laminating upper roll is installed at type membrane (2-5).
2. The two-step graphite calendaring device according to claim 1, characterized in that the primary calendaring structure (1) is provided with a first servo motor (1-7), and the secondary calendaring attaching mechanism (2) is synchronous with the first servo motor (1-7) under the driving of a second servo motor (2-6).
3. The two-step graphite calendaring device according to claim 1, characterized in that the primary calendaring structure (1) and the secondary calendaring laminating mechanism (2) are both provided with a hydraulic structure and an automatic gap adjusting device.
4. The rolling method of the two-step graphite rolling device as claimed in claim 1, comprising the steps of:
(a) First calendaring: fixing a foam graphite raw material on a graphite unreeling shaft (1-1), fixing a first release film on a cover film unreeling shaft (1-2), fixing a PET raw film on a first release film unreeling shaft (1-5), enabling the first release film, the foam graphite raw material and the PET raw film to pass through a gap between a main calendaring upper roller (1-3) and a main calendaring lower roller (1-6) at the same time, and enabling the foam graphite to be pressed to a set thickness between the upper roller and the lower roller by adjusting the gap between the upper roller and the lower roller and the calendaring pressure;
(b) And (3) rolling for the second time: passing the graphite after the first time of calendering in the step (a) through a roller (4), then stripping the PET raw film from the raw graphite, and collecting PET raw film waste on a first release film rolling (2-3); the first release film and the graphite after the first rolling continuously pass through a secondary rolling laminating mechanism (2) and are simultaneously laminated and rolled again with a second release film on a second release film rolling shaft (2-5) through a secondary laminating and rolling upper roller (2-1) and a secondary laminating and rolling lower roller (2-4), and after lamination is finished, the first release film is peeled off from the expanded graphite, so that the expanded graphite is smoothly laminated on the second release film and is rolled through a graphite rolling shaft (2-2).
5. The method according to claim 4, wherein the first release film in the step (a) is located on the upper surface of the graphite after the first rolling.
6. The method for rolling a two-step graphite rolling apparatus according to claim 4, wherein the rolling pressure in the step (a) is 1 to 10mpa, and the product thickness of the expanded graphite is controlled to 10 to 100 μm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887186.XA CN110526242B (en) | 2019-09-19 | 2019-09-19 | Two-step graphite calendaring device and calendaring method |
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| CN201910887186.XA CN110526242B (en) | 2019-09-19 | 2019-09-19 | Two-step graphite calendaring device and calendaring method |
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| CN110526242A CN110526242A (en) | 2019-12-03 |
| CN110526242B true CN110526242B (en) | 2024-02-06 |
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| CN111674076A (en) * | 2020-06-19 | 2020-09-18 | 江苏格优碳素新材料有限公司 | Preparation method of graphite bare die calendering |
| CN111716617A (en) * | 2020-06-29 | 2020-09-29 | 安徽普瑞康医药包装科技有限公司 | A extend pressure forming device for capsule packaging polyvinyl chloride resin |
| CN112720993B (en) * | 2020-12-02 | 2022-06-17 | 界首市天鸿新材料股份有限公司 | Adjusting mechanism of lithium battery diaphragm calender |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000016808A (en) * | 1998-04-28 | 2000-01-18 | Matsushita Electric Ind Co Ltd | Method and apparatus for producing graphite sheet having flexibility |
| CN106079825A (en) * | 2016-06-22 | 2016-11-09 | 苏州格优碳素新材料有限公司 | A kind of graphite film production method and graphite membrane production equipment |
| JP2017056613A (en) * | 2015-09-16 | 2017-03-23 | 株式会社サンパック | Method for manufacturing graphite sheet with protective layer |
| CN106739072A (en) * | 2016-12-28 | 2017-05-31 | 镇江博昊科技有限公司 | A kind of novel graphite film calender |
| CN206561669U (en) * | 2016-12-28 | 2017-10-17 | 镇江博昊科技有限公司 | A kind of calender system of graphite film calender |
| CN107792851A (en) * | 2017-10-18 | 2018-03-13 | 复旦大学 | A kind of simple method for preparing of native graphite heat dissipation film |
| CN108437511A (en) * | 2018-04-18 | 2018-08-24 | 苏州格优碳素新材料有限公司 | A kind of rolling equipment of graphite film, method and graphite film |
| CN208359656U (en) * | 2018-01-24 | 2019-01-11 | 苏州格优碳素新材料有限公司 | A kind of package artificial graphite membrane pressure rolling equipment |
| CN210764343U (en) * | 2019-09-19 | 2020-06-16 | 北京中石伟业科技无锡有限公司 | Two-step graphite calendering device |
-
2019
- 2019-09-19 CN CN201910887186.XA patent/CN110526242B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000016808A (en) * | 1998-04-28 | 2000-01-18 | Matsushita Electric Ind Co Ltd | Method and apparatus for producing graphite sheet having flexibility |
| JP2017056613A (en) * | 2015-09-16 | 2017-03-23 | 株式会社サンパック | Method for manufacturing graphite sheet with protective layer |
| CN106079825A (en) * | 2016-06-22 | 2016-11-09 | 苏州格优碳素新材料有限公司 | A kind of graphite film production method and graphite membrane production equipment |
| CN106739072A (en) * | 2016-12-28 | 2017-05-31 | 镇江博昊科技有限公司 | A kind of novel graphite film calender |
| CN206561669U (en) * | 2016-12-28 | 2017-10-17 | 镇江博昊科技有限公司 | A kind of calender system of graphite film calender |
| CN107792851A (en) * | 2017-10-18 | 2018-03-13 | 复旦大学 | A kind of simple method for preparing of native graphite heat dissipation film |
| CN208359656U (en) * | 2018-01-24 | 2019-01-11 | 苏州格优碳素新材料有限公司 | A kind of package artificial graphite membrane pressure rolling equipment |
| CN108437511A (en) * | 2018-04-18 | 2018-08-24 | 苏州格优碳素新材料有限公司 | A kind of rolling equipment of graphite film, method and graphite film |
| CN210764343U (en) * | 2019-09-19 | 2020-06-16 | 北京中石伟业科技无锡有限公司 | Two-step graphite calendering device |
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