CN116353036B - Shaping device of thermal polyimide film stretching machine - Google Patents
Shaping device of thermal polyimide film stretching machine Download PDFInfo
- Publication number
- CN116353036B CN116353036B CN202310411966.3A CN202310411966A CN116353036B CN 116353036 B CN116353036 B CN 116353036B CN 202310411966 A CN202310411966 A CN 202310411966A CN 116353036 B CN116353036 B CN 116353036B
- Authority
- CN
- China
- Prior art keywords
- oven
- temperature zone
- stretcher
- heating pipes
- polyimide film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229920001721 polyimide Polymers 0.000 title claims abstract description 49
- 238000007493 shaping process Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 95
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/002—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2079/00—Use of polymers having nitrogen, with or without oxygen or carbon only, in the main chain, not provided for in groups B29K2061/00 - B29K2077/00, as moulding material
- B29K2079/08—PI, i.e. polyimides or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/008—Wide strips, e.g. films, webs
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention discloses a shaping device of a thermal polyimide film stretcher, which belongs to the field of new material production equipment and comprises the following components: the stretching machine comprises a stretching machine oven, a chain wheel device and a heating device, and is characterized in that the interior of the stretching machine oven is divided into a head temperature zone, a middle temperature zone and a tail temperature zone, and the chain wheel device horizontally penetrates through the stretching machine oven and is used for conveying polyimide films into the stretching machine oven; the heating device comprises a lower heating pipe, an upper heating pipe and side heating pipes, wherein a plurality of lower heating pipes are arranged at the bottom of the stretcher oven in a head temperature zone and a tail temperature zone. In the middle temperature zone, a plurality of lower heating pipes are arranged at the bottom of the stretcher oven, a plurality of upper heating pipes are arranged at the top end of the stretcher oven, and a plurality of side heating pipes are arranged at the bottom of the stretcher oven and are positioned at two sides of the lower heating pipes. The invention realizes the independent control of the temperature in the temperature zone, reduces the temperature difference of each position of the polyimide film and improves the quality of the polyimide film.
Description
Technical Field
The invention belongs to the field of new material production equipment, and particularly relates to a shaping device of a thermal polyimide film stretching machine.
Background
The flatness of the polyimide film, the uniformity of performance indexes in the TD/MD direction is influenced by various factors, the flatness is an important index for producing the flexible copper clad laminate FCCL like the dimensional stability, the glue coating is uneven due to poor flatness, the flexible copper clad laminate FCCL is warped due to the difference of the performance indexes in the TD/MD direction, the position alignment is incorrect due to serious occurrence, and the board is scrapped.
Long-term practice shows that the temperature uniformity in the TD direction of a stretcher oven has a great influence on the flatness of the polyimide film and the consistent performance index in the TD/MD direction.
At present, the design of a domestic stretcher oven is that rotary chains are arranged on two sides of the oven, U-shaped infrared heating pipes are transversely arranged in the middle of the chains, and wiring ends extend out of the bottom (or the top) of the stretcher. The structure has the problems that the temperature of two sides of the stretching machine is obviously inconsistent due to the poor consistency of the surface temperature of the infrared heating pipe and the influence of the facilities and the heat preservation effect of the two sides of the stretching machine, meanwhile, the temperature of the two sides is obviously lower than the middle temperature, the individual temperature difference is as high as 10-25 ℃, and no adjusting means exists.
The equipment structure determines that the temperature uniformity in the TD direction of the polyamide acid film is difficult to realize in the drying and shaping process in the stretcher, the imidization degree of the polyimide film in the TD direction is inconsistent, and the flatness of the film and the performance index consistency in the TD/MD direction are affected. Finally, uneven gluing is caused, the flexible copper-clad plate FCCL warps, and even the plate is scrapped. (MD is the traveling direction of the polyimide film in the oven, and TD is the direction perpendicular to the MD)
Disclosure of Invention
In view of the above, the invention provides a shaping device of a thermal polyimide film stretcher, which can reduce the temperature difference between two sides and the middle of the polyimide film in the TD direction and improve the quality of the polyimide film.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a shaping device of a thermal polyimide film stretcher, comprising: the stretching machine comprises a stretching machine oven, a chain wheel device and a heating device, and is characterized in that the interior of the stretching machine oven is divided into a head temperature zone, a middle temperature zone and a tail temperature zone, and the chain wheel device horizontally penetrates through the stretching machine oven and is used for conveying polyimide films into the stretching machine oven; the heating device comprises a lower heating pipe, an upper heating pipe and side heating pipes, wherein a plurality of lower heating pipes are arranged at the bottom of a stretcher oven in a head temperature zone and a tail temperature zone, a plurality of lower heating pipes are arranged at the bottom of the stretcher oven in a middle temperature zone, a plurality of upper heating pipes are arranged at the top end of the stretcher oven, and a plurality of side heating pipes are arranged at the bottom of the stretcher oven and are positioned at two sides of the lower heating pipes.
Further, a plurality of temperature areas are arranged in the head temperature area, the middle temperature area and the tail temperature area.
Further, the temperature sensor is mounted at the top of the stretcher oven in a plurality of temperature zones of the middle temperature zone, and can independently control the temperatures of the lower heating pipe, the upper heating pipe and the side heating pipes in the plurality of temperature zones of the middle temperature zone.
Further, the upper heating pipe and the lower heating pipe are transversely arranged in the stretcher oven, and the side heating pipes are perpendicular to the arrangement direction of the lower heating pipe.
The invention has the beneficial effects that:
the lower heating pipe, the upper heating pipe and the side heating pipes in the middle temperature zone can uniformly heat the middle and two sides of the polyimide film, so that the temperature difference between two sides and the middle of the polyimide film in the TD direction is reduced, and the quality of the polyimide film is improved; the head temperature zone, the middle temperature zone and the tail temperature zone are respectively provided with a plurality of temperature zones, so that the heating of the polyimide film in the oven of the stretcher is refined, and the heating and stretching efficiency is improved; the temperature sensor can independently control the temperatures of the lower heating pipe, the upper heating pipe and the side heating pipes in a plurality of temperature areas in the middle temperature area, so that the temperature sensor can finely control the local position of the polyimide film, further reduce the temperature difference of the polyimide film in the TD direction or the MD direction, and improve the quality of the polyimide film.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front cross-sectional view of a shaping apparatus of a thermal polyimide film stretching machine.
Fig. 2 is a top cross-sectional view of a shaping apparatus of a thermal polyimide film stretcher.
Fig. 3 is a cross-sectional view A-A of fig. 1.
Fig. 4 is a schematic view of the heating device without the upper heating tube.
Wherein, in the figure:
10-stretcher oven, 11-head temperature zone, 12-middle temperature zone, 13-tail temperature zone, 101-first temperature zone, 102-second temperature zone, 103-third temperature zone, 104-fourth temperature zone, 105-fifth temperature zone, 106-sixth temperature zone, 107-seventh temperature zone, 108-eighth temperature zone, 109-ninth temperature zone, 110-tenth temperature zone, 111-eleventh temperature zone, 112-twelfth temperature zone, 20-sprocket device, 31-lower heating tube, 32-upper heating tube, 33-side heating tube, 40-temperature sensor, 50-imide film.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 4, the present invention provides a shaping device of a thermal polyimide film stretching machine, comprising: the stretching machine comprises a stretching machine oven 10, a chain wheel device 20 and a heating device, wherein the interior of the stretching machine oven 10 is divided into a head temperature zone 11, a middle temperature zone 12 and a tail temperature zone 13, the chain wheel device 20 horizontally penetrates through the stretching machine oven 10, and the chain wheel device 20 clamps the polyimide film 50 into the stretching machine oven 10 at two sides of the polyimide film 50 (the chain wheel device 20 belongs to the prior art of the stretching machine oven and is not repeated herein); the heating device comprises a lower heating pipe 31, an upper heating pipe 32 and side heating pipes 33, wherein a plurality of lower heating pipes 31 are arranged at the bottom of a stretcher oven 10 in a head temperature zone 11 and a tail temperature zone 13, a plurality of lower heating pipes 31 are arranged at the bottom of the stretcher oven 10 in a middle temperature zone 12, a plurality of upper heating pipes 32 are arranged at the top end of the stretcher oven 10, a plurality of side heating pipes 33 are arranged at the bottom of the stretcher oven 10 and are positioned at two sides of the lower heating pipes 31, and a plurality of lower heating pipes 31 of the head temperature zone 11 are used for preheating an advanced polyimide film 50; the lower heating pipe 31, the upper heating pipe 32 and the side heating pipes 33 of the middle temperature zone 12 heat the two sides and the middle of the polyimide film 50, so that the temperature difference between the two sides and the middle of the polyimide film 50 is minimized, and the quality of the polyimide film 50 is improved; the plurality of lower heating pipes 31 of the tail temperature zone 13 are used for transition between the temperature of the polyimide film 50 and the workshop temperature when the polyimide film 50 comes out of the stretcher oven 10, so that shrinkage of the polyimide film 50 in the TD direction and the MD direction caused by rapid cooling after the polyimide film comes out of the stretcher oven 10 is prevented, and the product quality is prevented from being influenced.
In a preferred embodiment, a plurality of temperature zones are respectively arranged in the head temperature zone 11, the middle temperature zone 12 and the tail temperature zone 13, wherein the head temperature zone 11 comprises a first temperature zone 101 and a second temperature zone 102, the middle temperature zone 12 comprises a third temperature zone 103, a fourth temperature zone 104, a fifth temperature zone 105, a sixth temperature zone 106, a seventh temperature zone 107, an eighth temperature zone 108, a ninth temperature zone 109 and a tenth temperature zone 110, the tail temperature zone 13 comprises an eleventh temperature zone 111 and a twelfth temperature zone 112, and the plurality of temperature zones subdivided in the head temperature zone 11, the middle temperature zone 12 and the tail temperature zone 13 refine the heating of the polyimide film 50 in the stretcher oven 10, so that the heating and stretching efficiency is improved.
In a preferred embodiment, the shaping device of the thermal polyimide film stretching machine further comprises a temperature sensor 40, wherein the temperature sensors 40 are arranged at the top of the stretching machine oven 10 in the temperature areas of the middle temperature area 12, three temperature sensors 40 are arranged at the top in each temperature area of the middle temperature area 12, the temperature sensor 40 in the middle can independently control the main heating of the lower heating pipe 31 and the upper heating pipe 32 in each temperature area of the middle temperature area 12, and the temperature sensors 40 on two sides can independently control the heating of the side heating pipes 33 in each temperature area of the middle temperature area 12, so that the invention can finely control the temperature of the local position of the polyimide film 50, further reduce the temperature difference of the polyimide film 50 in the TD direction or the MD direction, and improve the quality of the polyimide film 50.
In a preferred embodiment, the upper heating tube 32 and the lower heating tube 31 are transversely arranged in the stretcher oven 10, and the transverse arrangement of the upper heating tube 32 and the lower heating tube 31 is perpendicular to the MD direction of the polyimide film 50 in the stretcher oven 10, so as to facilitate stretching of the polyimide film 50 in the MD direction; the side heating pipes 33 are perpendicular to the arrangement direction of the lower heating pipes 31, and the side heating pipes 33 are perpendicular to the TD direction, which helps to reduce shrinkage of the polyimide film 50 in the TD direction.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A shaping device of a thermal polyimide film stretcher, comprising: the stretching machine comprises a stretching machine oven, a chain wheel device and a heating device, and is characterized in that the interior of the stretching machine oven is divided into a head temperature zone, a middle temperature zone and a tail temperature zone, and the chain wheel device horizontally penetrates through the stretching machine oven and is used for conveying polyimide films into the stretching machine oven; the heating device comprises a lower heating pipe, an upper heating pipe and side heating pipes, wherein a plurality of lower heating pipes are arranged at the bottom of a stretcher oven in the head temperature zone and the tail temperature zone, a plurality of lower heating pipes are arranged at the bottom of the stretcher oven in the middle temperature zone, a plurality of upper heating pipes are arranged at the top end of the stretcher oven, and a plurality of side heating pipes are arranged at the bottom of the stretcher oven and are positioned at two sides of the lower heating pipes;
the upper heating pipes and the lower heating pipes are transversely arranged in a stretcher oven, and the arrangement direction of the side heating pipes is perpendicular to the arrangement direction of the lower heating pipes;
the upper heating pipe and the lower heating pipe are transversely arranged in the stretcher oven, and the transverse arrangement of the upper heating pipe and the lower heating pipe is perpendicular to the MD direction of the stretcher oven, so that the stretching of the polyimide film in the MD direction is facilitated; the arrangement direction of the side heating pipes is perpendicular to the arrangement direction of the lower heating pipes, and the side heating pipes are perpendicular to the TD direction, so that shrinkage of the polyimide film in the TD direction can be reduced.
2. The shaping device of the thermal polyimide film stretching machine according to claim 1, wherein a plurality of temperature areas are respectively arranged in the head temperature area, the middle temperature area and the tail temperature area.
3. The apparatus of claim 2, further comprising a temperature sensor mounted on top of the stretcher oven in a plurality of temperature zones of the middle temperature zone, wherein the temperature sensor is capable of individually controlling the temperatures of the lower heating tube, the upper heating tube, and the side heating tube in the plurality of temperature zones of the middle temperature zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310411966.3A CN116353036B (en) | 2023-04-12 | 2023-04-12 | Shaping device of thermal polyimide film stretching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310411966.3A CN116353036B (en) | 2023-04-12 | 2023-04-12 | Shaping device of thermal polyimide film stretching machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116353036A CN116353036A (en) | 2023-06-30 |
| CN116353036B true CN116353036B (en) | 2023-11-17 |
Family
ID=86922101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310411966.3A Active CN116353036B (en) | 2023-04-12 | 2023-04-12 | Shaping device of thermal polyimide film stretching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116353036B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005313364A (en) * | 2004-04-27 | 2005-11-10 | Kaneka Corp | Isotropic polyimide film and its manufacturing method |
| JP2007093654A (en) * | 2005-09-27 | 2007-04-12 | Kaneka Corp | Retardation film, manufacturing method thereof and optical compensation polarizing plate |
| JP2008207509A (en) * | 2007-02-28 | 2008-09-11 | Hitachi Plant Technologies Ltd | Drawing machine for sheet material |
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| JP2013158928A (en) * | 2012-02-01 | 2013-08-19 | Nippon Shokubai Co Ltd | Method of manufacturing stretched film |
| CN103434128A (en) * | 2013-09-10 | 2013-12-11 | 青岛同飞管业有限公司 | Bidirectional heatcycle production process of high-quality sheet material |
| JP2014208462A (en) * | 2013-03-29 | 2014-11-06 | 東レ株式会社 | Tenter oven and method for producing thermoplastic resin film |
| CN204184980U (en) * | 2014-10-21 | 2015-03-04 | 安徽鑫柏格电子股份有限公司 | Kapton produces the film feeding device with imidization stove |
| JP2020044837A (en) * | 2018-09-18 | 2020-03-26 | 東レ株式会社 | Manufacturing method of film |
| CN115534190A (en) * | 2022-11-30 | 2022-12-30 | 山东欧亚高分子材料有限公司 | Uniform polyimide film drying device and using method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10259177B2 (en) * | 2013-03-29 | 2019-04-16 | Ube Industries, Ltd. | Film manufacturing method and manufacturing apparatus |
-
2023
- 2023-04-12 CN CN202310411966.3A patent/CN116353036B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005313364A (en) * | 2004-04-27 | 2005-11-10 | Kaneka Corp | Isotropic polyimide film and its manufacturing method |
| JP2007093654A (en) * | 2005-09-27 | 2007-04-12 | Kaneka Corp | Retardation film, manufacturing method thereof and optical compensation polarizing plate |
| JP2008207509A (en) * | 2007-02-28 | 2008-09-11 | Hitachi Plant Technologies Ltd | Drawing machine for sheet material |
| CN202088473U (en) * | 2011-05-27 | 2011-12-28 | 常州市华星新材料科技有限公司 | Hot melting oven |
| JP2013158928A (en) * | 2012-02-01 | 2013-08-19 | Nippon Shokubai Co Ltd | Method of manufacturing stretched film |
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| JP2014208462A (en) * | 2013-03-29 | 2014-11-06 | 東レ株式会社 | Tenter oven and method for producing thermoplastic resin film |
| CN103434128A (en) * | 2013-09-10 | 2013-12-11 | 青岛同飞管业有限公司 | Bidirectional heatcycle production process of high-quality sheet material |
| CN204184980U (en) * | 2014-10-21 | 2015-03-04 | 安徽鑫柏格电子股份有限公司 | Kapton produces the film feeding device with imidization stove |
| JP2020044837A (en) * | 2018-09-18 | 2020-03-26 | 東レ株式会社 | Manufacturing method of film |
| CN115534190A (en) * | 2022-11-30 | 2022-12-30 | 山东欧亚高分子材料有限公司 | Uniform polyimide film drying device and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116353036A (en) | 2023-06-30 |
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