CN114714607B - Fastening movable film stretching mechanism - Google Patents
Fastening movable film stretching mechanism Download PDFInfo
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- CN114714607B CN114714607B CN202210155446.6A CN202210155446A CN114714607B CN 114714607 B CN114714607 B CN 114714607B CN 202210155446 A CN202210155446 A CN 202210155446A CN 114714607 B CN114714607 B CN 114714607B
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- film
- movable
- stretching
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- 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
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- 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
- B29C55/20—Edge clamps
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- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- 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 fastening movable film stretching mechanism, which comprises two movable bottom plates which are arranged in parallel, wherein the lower ends of the two movable bottom plates are correspondingly provided with movable assemblies, a fixed rail is arranged below the two movable bottom plates, the fixed rail is perpendicular to the arrangement direction of the movable bottom plates, the two movable bottom plates are respectively arranged on the fixed rail through the movable assemblies, and the two movable bottom plates can correspondingly move on the fixed rail under the drive of the movable assemblies. According to the invention, continuous operation of film stretching can be realized through the structural form of the transmission chain wheel and the transmission chain, the structural form of the transmission chain wheel and the transmission chain is convenient to install and drive, the vertical plate, the pressing device and the like can be cooperatively installed, and the structure is reasonable.
Description
Technical Field
The invention relates to the technical field of film stretching equipment, in particular to a fastening movable film stretching mechanism.
Background
In the prior art, in the film production process, the thickness of the film is adjusted by depending on the size of a casting opening of casting equipment, and the film is required to be stretched by stretching equipment in the later period of the film, so that the thickness of the film is adjusted; in the prior art, stretching is performed by clamping both sides of the edge of the film by a clamping jaw device or the like.
For example: application publication number: the patent document of CN 111037899A discloses a greenhouse film stretching device, and the technical scheme is provided with a film conveying mechanism, a support frame assembly, a stretching adjusting mechanism, a grabbing mechanism and an edge cutting mechanism, and particularly, the grabbing mechanism is used for clamping the film, and the stretching adjusting mechanism is used for moving and adjusting the film to two sides to stretch the film.
In the technical scheme, when the film is stretched, the grabbing of the edge of the film is difficult, and the feeding before the film is stretched and the discharging process of the film after the film is stretched are troublesome, so that the setting of the film conveying mechanism is unreasonable.
For example: application publication number: the patent document of CN 108544744A also discloses a "plastic film stretching device", in which the technical scheme specifically implements thin clamping and fixing through the set chain clip guide rail and chain clip array, but in this technical scheme, uneven stress is easily caused, the film is damaged during stretching, and the use is not very convenient during material receiving and feeding and continuous working.
Therefore, in order to solve the above problems, a film stretching mechanism is needed, which is convenient to use, convenient to feed and discharge, reasonable in clamping mechanism and uniform in stretching stress.
Disclosure of Invention
The invention aims at overcoming the defects in the prior art and provides a fastening movable film stretching mechanism; the technical scheme is as follows:
the utility model provides a fastening movable film stretching mechanism, includes two parallel arrangement's movable bottom plate, and the corresponding removal subassembly of installing of lower extreme of two movable bottom plates to the below of two movable bottom plates still is provided with fixed track, and fixed track is perpendicular with movable bottom plate's setting direction, and two movable bottom plates are installed on fixed track through the removal subassembly respectively, and two movable bottom plates can be corresponding to remove on fixed track under the drive of movable component.
The length of two movable bottom plates is the same, and the drive arrangement is still all installed at the both ends of every movable bottom plate, drive arrangement vertical setting, the actuating lever upwards stretches out, and correspondingly installs drive sprocket on the actuating lever, drive sprocket keep flat to correspondingly install drive chain between the drive sprocket of both sides, just the outside of drive chain still install the riser of a plurality of vertical setting, the bottom of this riser transversely is provided with the tensile bottom plate that is used for placing the film edge to the outside, and the upper end of riser then correspondingly is provided with the mounting panel that stretches out to both sides, the closing device is correspondingly installed to the outside upper end of this mounting panel, the closing lever of this closing device stretches out downwards and is provided with the clamp plate, the position of this clamp plate corresponds with the position of the tensile bottom plate of below, when the edge of film is placed on tensile bottom plate, closing device can drive the clamp plate and compress tightly down the film edge fixedly.
Further, a controller and a power supply device for providing power supply are correspondingly arranged on the inner side of the upper end of the mounting plate; and the stretching bottom plate is also provided with an inductor, and after the inductor senses that the film is placed on the stretching bottom plate, the pressing plate can be correspondingly driven to press down by controlling the pressing device through the controller.
Further, the drying room is also included, and the driving chain wheel is integrally arranged in the drying room.
Further, the area between the transmission chains at two sides is set as a film stretching area, the inlet end of the film stretching area is correspondingly provided with a feeding roller, the setting height of the feeding roller corresponds to the height of the stretching bottom plate, the film on the feeding roller can be correspondingly placed on the stretching bottom plate, and a film cutting device is further installed above the feeding roller.
Further, the outlet end of the film stretching area is correspondingly provided with a receiving roller, the setting height of the receiving roller corresponds to the setting height of the stretching bottom plate, the length of the receiving roller is larger than that of the feeding roller, and the film coming out of the outlet end of the film stretching area can be correspondingly wound on the receiving roller.
Further, two fixed rails below the movable bottom plate are arranged in total, the two fixed rails are perpendicular to the movable bottom plate, and two movable components are correspondingly arranged on each movable bottom plate.
Further, the driving chain wheels at the two sides of each movable bottom plate are respectively provided with an upper driving chain wheel and a lower driving chain wheel, and the two driving chain wheels are respectively provided with a driving chain; the vertical plates on the transmission chain are evenly arranged at intervals.
The beneficial effects are that: the invention has the following beneficial effects:
(1) According to the invention, continuous operation of film stretching can be realized through the structural form of the transmission chain wheel and the transmission chain, the structural form of the transmission chain wheel and the transmission chain is convenient to install and drive, the vertical plate, the pressing device and the like can be cooperatively installed, and the structure is reasonable;
(2) According to the invention, the fixing of the edges of the two sides of the film is realized by the arranged compressing device, the stretching bottom plate is provided with the inductor in a matched manner, and after the inductor senses that the film is placed on the stretching bottom plate, the film can be compressed by the compressing device, so that the film is convenient to fix and compress.
(3) After the film is conveyed onto the stretching bottom plate by the feeding roller, the film can be fixed by the pressing device and then can move forwards by the transmission chain, in the moving process, the pressing device can sequentially fix the film, and when the film moves to the outlet end of the film stretching area, the film is cut by the film cutting device, so that the film can be conveyed, pressed and fixed in a whole piece, the cutting position of the film can be selected, and the size and the dimension of the film can be controlled;
(4) After the film is fixed, the moving assembly controls the moving bottom plates at two sides to move outwards in an expanding way, the middle film is gradually stretched, the film is pressed by a plurality of pressing plates, and when the film is stretched outwards, the stress is more uniform, and the film cannot be broken and broken.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view B-B of FIG. 1;
fig. 4 is a view in the direction C of fig. 3.
Detailed Description
The invention will be further illustrated by the following drawings and specific examples, which are carried out on the basis of the technical solutions of the invention, it being understood that these examples are only intended to illustrate the invention and are not intended to limit the scope of the invention.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, a fastening movable film stretching mechanism comprises two movable bottom plates 1 which are placed in parallel, wherein the lower ends of the two movable bottom plates 1 are correspondingly provided with movable components 2, a fixed rail 3 is further arranged below the two movable bottom plates 1, the fixed rail 3 is perpendicular to the arrangement direction of the movable bottom plates 1, the two movable bottom plates 1 are respectively arranged on the fixed rail 3 through the movable components 2, and the two movable bottom plates 1 can correspondingly move on the fixed rail 3 under the driving of the movable components 2.
The length of two movable bottom plates 1 is the same, and the drive arrangement 4 is still all installed at the both ends of every movable bottom plate 1, drive arrangement 4 vertical setting, the actuating lever upwards stretches out, and correspondingly install drive sprocket 6 on the actuating lever, drive sprocket 6 keeps flat, and correspondingly install drive chain 7 between the drive sprocket 6 of both sides, and the riser 8 of a plurality of vertical setting is still installed in the outside of drive chain 7, the bottom of riser 8 transversely is provided with the tensile bottom plate 9 that is used for placing the film edge outward, and the upper end of riser 8 then correspondingly is provided with the mounting panel 10 that stretches out to both sides, the closing device 11 is installed to the outside upper end of this mounting panel 10 respectively, the closing lever 12 of this closing device 11 stretches out downwards and is provided with clamp plate 13, the position of this clamp plate 13 corresponds with the position of the tensile bottom plate 9 of below, when the edge of film is placed on tensile bottom plate 9, closing device 11 can drive clamp plate 13 downwards with the film edge fixed of compressing tightly.
A controller 19 and a power supply device 20 for supplying power are respectively arranged on the inner side of the upper end of the mounting plate 10; and the stretching bottom plate is also provided with an inductor 21, and after the inductor 21 senses that the stretching bottom plate 9 is provided with a film, the pressing device 11 can be correspondingly controlled by the controller 19 to drive the pressing plate 13 to press down.
In the invention, a plurality of vertical plates with uniform intervals are arranged on the outer side of the transmission chain, the lower ends of the vertical plates are outwards provided with the stretching bottom plates for placing the films, the upper parts of the stretching bottom plates are correspondingly provided with a mounting plate which is in a T shape as a whole, and the whole is provided with the pressing devices, the power supply devices and the controllers.
Also included is a drying chamber 14, with the drive sprocket 6 integrally disposed within the drying chamber 14.
The area between the drive chains 7 on both sides is set as a film stretching area 15, a feeding roller 16 is correspondingly arranged at the inlet end of the film stretching area 15, the arrangement height of the feeding roller 16 corresponds to the height of the stretching baseplate 9, the film on the feeding roller 16 can be correspondingly placed on the stretching baseplate 9, and a film cutting device 17 is also arranged above the feeding roller 16.
The outlet end of the film stretching area 15 is correspondingly provided with a receiving roller 18, the setting height of the receiving roller 18 corresponds to the setting height of the stretching bottom plate 9, the length of the receiving roller 18 is longer than that of the feeding roller 16, and the film coming out of the outlet end of the film stretching area 15 can be correspondingly wound on the receiving roller 18.
Two fixed rails 3 below the movable bottom plate 1 are arranged in total, the two fixed rails 3 are perpendicular to the movable bottom plate 1, and each movable bottom plate 1 is correspondingly provided with two movable assemblies 2.
The driving chain wheels 6 on two sides of each movable bottom plate 1 are respectively provided with an upper driving chain wheel and a lower driving chain wheel, and the two driving chain wheels 6 are respectively provided with a driving chain 7; the vertical plates 8 on the transmission chain 7 are evenly arranged at intervals.
When the device is used, the film on the discharging roller is of original length, the set height of the discharging roller corresponds to the height of the stretching bottom plate on the vertical plate, and the size of the inlet of the stretching area of the film can be adjusted by adjusting the distance between the driving sprockets on two sides, so that the film is matched with the length of the discharging roller.
When the sensor on the stretching bottom plate does not sense the film, the pressing plate is suspended above, the sensor can be arranged to be an infrared sensor or a photoelectric sensor, the discharging roller transmits forwards, the film enters the film stretching area, the edge positions of the two sides of the film fall onto the stretching bottom plate on the two sides, after the sensor on the stretching bottom plate senses the film, the pressing device above the sensor is controlled to start, the pressing plate presses down to fix the film, the transmission chain correspondingly transmits forwards, the film is pressed and then transmitted forwards by the stretching bottom plate in a linkage manner, in the transmission process, the film is sequentially placed on the subsequent stretching bottom plate, the pressing device on the stretching bottom plate sequentially presses the edge of the film, when the stretching bottom plate at the front end moves to the outlet end of the film stretching area, the transmission chain wheel stops, and then the film is cut off through the cutting device at the inlet end, so that the film is integrally clamped and fixed in the film stretching area.
Of course, in this process, the film may be transported to only half of the positions for cutting, and the length of the film may be selected independently, and the size of the film may be selected independently.
Then through the removal bottom plate of moving assembly control both sides to both sides slow movement on fixed track, remove the whole external expansion type removal of bottom plate drive sprocket and drive chain to press from both sides tight fixed film in the middle to both sides tensile, realize the tensile of film, the structure setting of this device, on the one hand the clamp of film is fixed comparatively rationally, and clamp is fixed comparatively conveniently, and clamp is fixed after moreover, and the atress is comparatively even, and the width of riser and the interval between the riser can set up correspondingly, and the film can not be damaged easily during the tensile.
The whole device is arranged in a drying chamber, and the film is dried in the drying chamber after being stretched, so that the film is completely solidified and shaped; the transmission chains at the two sides can continue to transmit forwards, the pressing device is controlled to release the pressing plate successively, and the film can be correspondingly sent out through the discharging roller and wound on the receiving roller; and then, the movable bottom plate and the driving chain wheel are controlled to reset through the movable assembly, so that the next film stretching can be started, and the whole continuous operation can be realized.
The above detailed description is only a preferred embodiment of the present invention and is not intended to limit the scope of the claims, but all equivalent changes and modifications that can be made according to the protection scope of the claims are included in the scope of the claims.
Claims (4)
1. A fastening movable film stretching mechanism, which is characterized in that: the movable base plate comprises two movable base plates (1) which are arranged in parallel, wherein the lower ends of the two movable base plates (1) are correspondingly provided with movable assemblies (2), a fixed rail (3) is arranged below the two movable base plates (1), the fixed rail (3) is perpendicular to the arrangement direction of the movable base plates (1), the two movable base plates (1) are respectively arranged on the fixed rail (3) through the movable assemblies (2), and the two movable base plates (1) can correspondingly move on the fixed rail (3) under the driving of the movable assemblies (2);
the length of the two movable bottom plates (1) is the same, the two ends of each movable bottom plate (1) are also provided with a driving device (4), the driving devices (4) are vertically arranged, the driving rods extend upwards, the driving rods are correspondingly provided with driving chain wheels (6), the driving chain wheels (6) are horizontally arranged, driving chains (7) are correspondingly arranged between the driving chain wheels (6) on two sides, the outer sides of the driving chains (7) are also provided with a plurality of vertical plates (8) which are vertically arranged, the bottoms of the vertical plates (8) are transversely provided with stretching bottom plates (9) for placing edges of films outwards, the upper ends of the vertical plates (8) are correspondingly provided with mounting plates (10) extending towards two sides, the upper ends of the outer sides of the mounting plates (10) are correspondingly provided with pressing devices (11), the pressing rods (12) of the pressing devices (11) extend downwards and are provided with pressing plates (13), the positions of the pressing plates (13) correspond to the positions of the stretching bottom plates (9) below, and when the edges of the films are placed on the stretching bottom plates (9), the pressing devices (11) can drive the pressing plates (11) to fix the edges of the films downwards;
a controller (19) and a power supply device (20) for supplying power are correspondingly arranged on the inner side of the upper end of the mounting plate (10); and the stretching bottom plate is also provided with an inductor (21), and after the inductor (21) senses that a film is placed on the stretching bottom plate (9), the pressing device (11) can be correspondingly controlled by the controller (19) to drive the pressing plate (13) to press down;
the area between the transmission chains (7) at two sides is set as a film stretching area (15), a feeding roller (16) is correspondingly arranged at the inlet end of the film stretching area (15), the setting height of the feeding roller (16) corresponds to the height of the stretching baseplate (9), a film on the feeding roller (16) can be correspondingly placed on the stretching baseplate (9), and a film cutting device (17) is also arranged above the feeding roller (16);
the outlet end of the film stretching area (15) is correspondingly provided with a receiving roller (18), the setting height of the receiving roller (18) corresponds to the setting height of the stretching bottom plate (9), the length of the receiving roller (18) is longer than that of the feeding roller (16), and the film coming out of the outlet end of the film stretching area (15) can be correspondingly wound on the receiving roller (18).
2. A fastening mobile film stretching mechanism as defined in claim 1, wherein: the drying device also comprises a drying chamber, and the driving chain wheel (6) is integrally arranged in the drying chamber.
3. A fastening mobile film stretching mechanism as defined in claim 1, wherein: the fixed rails (3) below the movable bottom plate (1) are arranged in two, the two fixed rails (3) are perpendicular to the movable bottom plate (1), and each movable bottom plate (1) is correspondingly provided with two movable components (2).
4. A fastening mobile film stretching mechanism as defined in claim 3, wherein: the driving chain wheels (6) on two sides of each movable bottom plate (1) are respectively provided with an upper driving chain wheel and a lower driving chain wheel, and the two driving chain wheels (6) are respectively provided with a driving chain (7); the vertical plates (8) on the transmission chain (7) are evenly arranged at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210155446.6A CN114714607B (en) | 2022-02-18 | 2022-02-18 | Fastening movable film stretching mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210155446.6A CN114714607B (en) | 2022-02-18 | 2022-02-18 | Fastening movable film stretching mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114714607A CN114714607A (en) | 2022-07-08 |
| CN114714607B true CN114714607B (en) | 2023-06-13 |
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ID=82235564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210155446.6A Active CN114714607B (en) | 2022-02-18 | 2022-02-18 | Fastening movable film stretching mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN114714607B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3078504A (en) * | 1960-03-16 | 1963-02-26 | American Viscose Corp | Method and apparatus for biaxial stretching of beaded edge film |
| US3240412A (en) * | 1963-01-30 | 1966-03-15 | Bayer Ag | Arrangement for continuously handling moving tensioned webs of foil with flanged edges |
| US3529332A (en) * | 1968-06-14 | 1970-09-22 | Bevis Ind Inc | Tenter frame |
| CN103223722A (en) * | 2013-04-23 | 2013-07-31 | 苏州固泰新材料科技有限公司 | Biaxial stretching device and track apparatus thereof |
| WO2014094803A1 (en) * | 2012-12-20 | 2014-06-26 | Brückner Maschinenbau GmbH & Co. KG | Stretching unit |
| CN104070668A (en) * | 2013-03-28 | 2014-10-01 | 富士胶片株式会社 | Method of manufacturing optical film |
| CN104416899A (en) * | 2013-09-04 | 2015-03-18 | 宇部兴产株式会社 | Film holder and tenter device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE573406A (en) * | 1957-11-29 | |||
| FR2849801B1 (en) * | 2003-01-15 | 2006-12-08 | Darlet Marchante Tech Sa | DEVICE FOR THE SIMULTANEOUS STRETCHING OF MOVIES IN THE LONGITUDINAL AND TRANSVERSE SENSE |
| JP4749741B2 (en) * | 2005-03-04 | 2011-08-17 | 富士フイルム株式会社 | Tenta dryer and solution casting method |
| CN111037899B (en) * | 2019-12-31 | 2021-11-12 | 宁夏养正苗木有限公司 | Greenhouse film stretching device |
| CN214773976U (en) * | 2021-02-03 | 2021-11-19 | 温州强润新材料科技有限公司 | Polyester film biaxial stretching apparatus for producing |
-
2022
- 2022-02-18 CN CN202210155446.6A patent/CN114714607B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3078504A (en) * | 1960-03-16 | 1963-02-26 | American Viscose Corp | Method and apparatus for biaxial stretching of beaded edge film |
| US3240412A (en) * | 1963-01-30 | 1966-03-15 | Bayer Ag | Arrangement for continuously handling moving tensioned webs of foil with flanged edges |
| US3529332A (en) * | 1968-06-14 | 1970-09-22 | Bevis Ind Inc | Tenter frame |
| WO2014094803A1 (en) * | 2012-12-20 | 2014-06-26 | Brückner Maschinenbau GmbH & Co. KG | Stretching unit |
| CN104070668A (en) * | 2013-03-28 | 2014-10-01 | 富士胶片株式会社 | Method of manufacturing optical film |
| CN103223722A (en) * | 2013-04-23 | 2013-07-31 | 苏州固泰新材料科技有限公司 | Biaxial stretching device and track apparatus thereof |
| CN104416899A (en) * | 2013-09-04 | 2015-03-18 | 宇部兴产株式会社 | Film holder and tenter device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114714607A (en) | 2022-07-08 |
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