CN112265251A - Device and method for manufacturing polarizing film - Google Patents
Device and method for manufacturing polarizing film Download PDFInfo
- Publication number
- CN112265251A CN112265251A CN202011197983.4A CN202011197983A CN112265251A CN 112265251 A CN112265251 A CN 112265251A CN 202011197983 A CN202011197983 A CN 202011197983A CN 112265251 A CN112265251 A CN 112265251A
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- CN
- China
- Prior art keywords
- film
- die
- polarizing film
- bending
- supporting plate
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- 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.)
- Pending
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005452 bending Methods 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000002826 coolant Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 7
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
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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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
- B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/264—Auxiliary operations prior to the thermoforming operation, e.g. cutting
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/266—Auxiliary operations after the thermoforming operation
- B29C51/268—Cutting, rearranging and joining the cut parts
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/38—Opening, closing or clamping means
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/42—Heating or cooling
- B29C51/428—Heating or cooling of moulds or mould parts
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention belongs to the field of polarizer manufacturing, and provides a polarizing film manufacturing device which comprises a base, wherein the upper end surface of the base is connected with a supporting plate through a supporting column, the upper end surface of the supporting plate is provided with an air cylinder, a lifting rod of the air cylinder penetrates through a through hole prefabricated on the supporting plate, the lower end of the lifting rod is connected with an upper die, the lower end surface of the upper die is provided with a film bending bulge, a lower die is arranged right below the upper die, the upper end surface of the lower die is provided with a film bending groove, and the upper die and the lower die are both provided with heating devices; the film bending fixture comprises a lower supporting plate and an upper cover plate, a through hole for bending the film is formed in the centers of the lower supporting plate and the upper cover plate, and the lower supporting plate is fixedly connected with the upper cover plate through screws. Also provides a method for manufacturing the polarizing film. According to the device and the method for manufacturing the polarizing film, the film paper is directly manufactured, the size requirement is not strict, the polarizing film is cut according to the actual requirement in the later stage, the polarizing film can be thinner, and the possible internal defects of the polarizing film are eliminated.
Description
Technical Field
The present disclosure relates to a mechanical device and a method for fabricating a polarizer, and more particularly, to a device and a method for fabricating a polarizer.
Background
The existing method for manufacturing the polarizing film comprises the steps of cutting flat film paper into required sizes, heating a die to a specific temperature, clamping the flat film paper in the middle of the die, and shaping to obtain a finished film. The disadvantage of this method is that the size of the polarizing film must be determined, and the thickness of the film paper must be as thin as 0.2 mm, otherwise the film paper is difficult to be formed in a short time. However, in the latter polarizing lens product, such a thick polarizing film has inherent defects (uneven wrinkles are formed after reflection of light by a polarizing film of 0.2 mm or more) and cannot be handled.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a polarizing film manufacturing device and a polarizing film manufacturing method, which solve the problems that the existing polarizing film has strict requirements on manufacturing size and has inherent defects of thicker polarizing film.
In order to solve the technical problems, the invention provides the following technical scheme:
a polarizing film manufacturing device comprises a base, wherein a support column is arranged on the upper end face of the base, a support plate is connected to the upper end of the support column, an air cylinder is arranged on the upper end face of the support plate, a lifting rod of the air cylinder penetrates through a through hole prefabricated in the support plate, an upper die is connected to the lower end of the lifting rod, a film bending bulge is arranged on the lower end face of the upper die, a lower die is arranged on the upper end face of the base right below the upper die, a film bending groove is arranged on the upper end face of the lower die, and heating devices are arranged on the upper die and the lower die; the film bending fixture comprises a lower supporting plate and an upper cover plate, a through hole for bending the film is formed in the centers of the lower supporting plate and the upper cover plate, and the periphery of the through hole for bending the film is correspondingly provided with a threaded hole and fixedly connected through screws.
Further, the cylinder is provided with an air pressure regulating valve.
Further, the heating device is a heating ring, and the heating ring is sleeved on the outer side surfaces of the upper die and the lower die.
Furthermore, the heating ring adopts a hoop structure, and the end parts of the heating ring are fastened and connected through screws.
Further, the inside of going up mould and bed die is provided with the coolant liquid runner, the coolant liquid runner with go up the connecting hole intercommunication that mould and bed die surface set up, the connecting hole has the coolant liquid storage tank through coolant liquid carrier pipe connection.
Furthermore, the upper end face of the lower supporting plate is provided with a positioning pin, and a pin hole is formed in the position, corresponding to the positioning pin, of the upper cover plate.
Further, an annular step is arranged on the upper end face of the lower die and on the periphery of the film bending groove, and the outer diameter of the annular step is consistent with the inner diameter of the through hole for bending the film.
A polarizing film manufacturing method adopts the polarizing film manufacturing device and comprises the following steps:
s1, cutting the flat film paper into processable models for standby use, wherein the flat film paper does not need to be cut into the size required by the lens and can be matched with a film bending clamp;
s2, tearing off the outer protective film of the film paper, flatly placing the film paper in a film bending clamp, and tightening screws;
s3, starting a heating device, placing the film bending clamp on the lower die when the upper die and the lower die are heated to 80-85 ℃, starting an air cylinder, descending the upper die, and pressing and baking the film paper, wherein in the process, the upper die is used for forming, the lower die is used for preserving heat, and the film paper is only contacted with the upper die;
s4, baking for 5-10 minutes to enable the film paper to be completely molded, closing the heating device, starting cooling the die to reach 30-35 ℃, and taking out the film bending clamp;
s5, loosening the screws, taking out the molded film paper, putting the film paper into a box for later use, and cutting the molded film paper according to actual needs.
According to the device and the method for manufacturing the polarizing film, the film paper is directly manufactured, the size requirement is not strict, the polarizing film is cut according to the actual requirement in the later stage, the polarizing film can be thinner, and the possible internal defects of the polarizing film are eliminated.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view showing the structure of upper and lower molds according to the present invention;
FIG. 3 is a schematic view of a lower plate of the present invention;
figure 4 is a schematic view of a heating coil of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1-4, a polarizing film manufacturing apparatus includes a base 1, wherein a supporting column 2 is disposed on an upper end surface of the base 1, a supporting plate 3 is connected to an upper end of the supporting column 2, a cylinder 4 is disposed on an upper end surface of the supporting plate 3, a lifting rod 5 of the cylinder 4 passes through a through hole prefabricated on the supporting plate 3, a lower end of the lifting rod 5 is connected to an upper mold 6, a film bending protrusion is disposed on a lower end surface of the upper mold 6, a lower mold 7 is disposed on an upper end surface of the base 1 right below the upper mold 6, a film bending groove is disposed on an upper end surface of the lower mold 7, and both the upper mold 6 and the lower; the film bending fixture comprises a lower supporting plate 9 and an upper cover plate, a through hole for bending the film is formed in the centers of the lower supporting plate 9 and the upper cover plate, and the periphery of the through hole for bending the film is correspondingly provided with a threaded hole 10 and fixedly connected with the lower supporting plate 9 and the upper cover plate through screws.
The working principle comprises the following steps:
s1, cutting the flat film paper into processable models for standby use, wherein the flat film paper does not need to be cut into the size required by the lens and can be matched with a film bending clamp;
s2, tearing off the outer protective film of the film paper, flatly placing the film paper in a film bending clamp, and tightening screws;
s3, starting a heating device, placing the film bending clamp on the lower die when the upper die and the lower die are heated to 80-85 ℃, starting an air cylinder, descending the upper die, and pressing and baking the film paper, wherein in the process, the upper die is used for forming, the lower die is used for preserving heat, and the film paper is only contacted with the upper die;
s4, baking for 5-10 minutes to enable the film paper to be completely molded, closing the heating device, starting cooling the die to reach 30-35 ℃, and taking out the film bending clamp;
s5, loosening the screws, taking out the molded film paper, putting the film paper into a box for later use, and cutting the molded film paper according to actual needs.
The traditional mode adopts the mode of directly pressing the film, and the method adopts the mode of pressing while tensioning the film, so that the thickness of the film paper manufactured by the method can reach 0.035-0.2 mm, and the inherent defects of the film paper with the thickness of more than 0.2 mm can be effectively eliminated.
The air cylinder 4 is provided with an air pressure regulating valve 11, so that the pressure in the air cylinder can be regulated as required, and the reliable and stable operation of the air cylinder is ensured.
The heating device is a heating ring 12, the heating ring 12 is sleeved on the outer side surfaces of the upper die and the lower die, the heating ring 12 adopts a hoop structure, and the end parts of the heating ring are fastened and connected through screws. And the hoop type heating ring is adopted, so that the cost is low, and the installation and maintenance are convenient.
The upper mold 6 and the lower mold 7 are provided with coolant flow passages 13 inside, and the coolant flow passages 13 communicate with connection holes provided on the surfaces of the upper mold 6 and the lower mold 7, and the connection holes are connected to a coolant storage tank (not shown) through a coolant delivery pipe (not shown). The upper die and the lower die are cooled by the cooling liquid, so that the cooling time is shortened, the manufacturing time of the polarizing film is shortened, and the production efficiency is improved.
The upper end face of the lower supporting plate 9 is provided with a positioning pin 14, and the upper cover plate is provided with a pin hole corresponding to the positioning pin. The leveling film paper to be processed is also provided with the pin hole, so that the film paper can be positioned when being placed on the lower supporting plate, and the film paper can not move when the upper cover plate is installed.
An annular step 15 is arranged on the upper end face of the lower die 7 at the periphery of the film bending groove, and the outer diameter of the annular step 15 is consistent with the inner diameter of the through hole for bending the film. When the film bending clamp is placed on the lower die, the positioning function is achieved, and the position accuracy of the film paper to be processed is guaranteed.
According to the device and the method for manufacturing the polarizing film, the film paper is directly manufactured, the size requirement is not strict, the polarizing film is cut according to the actual requirement in the later stage, the polarizing film can be thinner, and the possible internal defects of the polarizing film are eliminated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A polarizing film production apparatus characterized in that: the die comprises a base, wherein a supporting column is arranged on the upper end face of the base, a supporting plate is connected to the upper end of the supporting column, an air cylinder is arranged on the upper end face of the supporting plate, a lifting rod of the air cylinder penetrates through a through hole prefabricated in the supporting plate, an upper die is connected to the lower end of the lifting rod, a film bending bulge is arranged on the lower end face of the upper die, a lower die is arranged on the upper end face of the base right below the upper die, a film bending groove is arranged on the upper end face of the lower die, and heating devices are arranged on the upper die and the lower die;
the film bending fixture comprises a lower supporting plate and an upper cover plate, a through hole for bending the film is formed in the centers of the lower supporting plate and the upper cover plate, and the periphery of the through hole for bending the film is correspondingly provided with a threaded hole and fixedly connected through screws.
2. The polarizing film producing apparatus according to claim 1, wherein: the cylinder is provided with an air pressure regulating valve.
3. The polarizing film producing apparatus according to claim 1, wherein: the heating device is a heating ring, and the heating ring is sleeved on the outer side surfaces of the upper die and the lower die.
4. The polarizing film producing apparatus according to claim 3, wherein: the heating ring adopts a hoop structure, and the end parts of the heating ring are fastened and connected through screws.
5. The polarizing film producing apparatus according to claim 1, wherein: the inside of going up mould and bed die is provided with the coolant liquid runner, the coolant liquid runner with go up the connecting hole intercommunication that mould and bed die surface set up, the connecting hole has the coolant liquid storage tank through coolant liquid carrier pipe connection.
6. The polarizing film producing apparatus according to claim 1, wherein: the upper end face of the lower supporting plate is provided with a positioning pin, and a pin hole is formed in the position, corresponding to the positioning pin, of the upper cover plate.
7. The polarizing film producing apparatus according to claim 1, wherein: and the upper end surface of the lower die is provided with an annular step at the periphery of the film bending groove, and the outer diameter of the annular step is consistent with the inner diameter of the through hole for bending the film.
8. A method for manufacturing a polarizing film is characterized in that: a polarizing film producing apparatus according to any one of claims 1 to 7 and comprising the steps of:
s1, cutting the flat film paper into processable models for standby use, wherein the flat film paper does not need to be cut into the size required by the lens and can be matched with a film bending clamp;
s2, tearing off the outer protective film of the film paper, flatly placing the film paper in a film bending clamp, and tightening screws;
s3, starting a heating device, placing the film bending clamp on the lower die when the upper die and the lower die are heated to 80-85 ℃, starting an air cylinder, descending the upper die, and pressing and baking the film paper, wherein in the process, the upper die is used for forming, the lower die is used for preserving heat, and the film paper is only contacted with the upper die;
s4, baking for 5-10 minutes to enable the film paper to be completely molded, closing the heating device, starting cooling the die to reach 30-35 ℃, and taking out the film bending clamp;
s5, loosening the screws, taking out the molded film paper, putting the film paper into a box for later use, and cutting the molded film paper according to actual needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011197983.4A CN112265251A (en) | 2020-10-30 | 2020-10-30 | Device and method for manufacturing polarizing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011197983.4A CN112265251A (en) | 2020-10-30 | 2020-10-30 | Device and method for manufacturing polarizing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112265251A true CN112265251A (en) | 2021-01-26 |
Family
ID=74344524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011197983.4A Pending CN112265251A (en) | 2020-10-30 | 2020-10-30 | Device and method for manufacturing polarizing film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112265251A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759456A (en) * | 2021-09-14 | 2021-12-07 | 长光卫星技术有限公司 | Preparation method of thin film metal wire grid polarizer with glass substrate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014142440A (en) * | 2013-01-23 | 2014-08-07 | Hoya Lense Manufacturing Philippine Inc | Method of manufacturing polarizing lens |
| JP2016168829A (en) * | 2015-10-09 | 2016-09-23 | 株式会社ホプニック研究所 | Production method of plastic lens, positioning method of film, and composite |
| CN207206863U (en) * | 2017-07-31 | 2018-04-10 | 江苏淘镜有限公司 | A kind of mould of eyeglass light polarizing film |
| US20200284961A1 (en) * | 2017-09-07 | 2020-09-10 | Daicel-Evonik Ltd. | Polarizing sheet and polarizing lens provided with same |
| CN213618299U (en) * | 2020-10-30 | 2021-07-06 | 丹阳市大尧光学眼镜有限公司 | Polarizing film manufacturing device |
-
2020
- 2020-10-30 CN CN202011197983.4A patent/CN112265251A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014142440A (en) * | 2013-01-23 | 2014-08-07 | Hoya Lense Manufacturing Philippine Inc | Method of manufacturing polarizing lens |
| JP2016168829A (en) * | 2015-10-09 | 2016-09-23 | 株式会社ホプニック研究所 | Production method of plastic lens, positioning method of film, and composite |
| CN207206863U (en) * | 2017-07-31 | 2018-04-10 | 江苏淘镜有限公司 | A kind of mould of eyeglass light polarizing film |
| US20200284961A1 (en) * | 2017-09-07 | 2020-09-10 | Daicel-Evonik Ltd. | Polarizing sheet and polarizing lens provided with same |
| CN213618299U (en) * | 2020-10-30 | 2021-07-06 | 丹阳市大尧光学眼镜有限公司 | Polarizing film manufacturing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113759456A (en) * | 2021-09-14 | 2021-12-07 | 长光卫星技术有限公司 | Preparation method of thin film metal wire grid polarizer with glass substrate |
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