CN103381639A - Electrostatic adsorption auxiliary device for PET capacitance film production - Google Patents
Electrostatic adsorption auxiliary device for PET capacitance film production Download PDFInfo
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- CN103381639A CN103381639A CN2012101350145A CN201210135014A CN103381639A CN 103381639 A CN103381639 A CN 103381639A CN 2012101350145 A CN2012101350145 A CN 2012101350145A CN 201210135014 A CN201210135014 A CN 201210135014A CN 103381639 A CN103381639 A CN 103381639A
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- roller
- pet
- electrostatic adsorption
- slab
- piece
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention relates to an electrostatic adsorption auxiliary device for PET capacitance film production. The electrostatic adsorption auxiliary device, a piece casting roller, a mold head, an electrostatic adsorption device and a peeling roller form a PET capacitance film piece-casting molding system. The electrostatic adsorption auxiliary device comprises a vacuum water-suction roller, a steam jet, a vacuum pump and a small steam generation boiler. The vacuum water-suction roller and the steam jet are orderly arranged behind the peeling roller along a piece-casting roller rotation direction and are located around the piece-casting roller. The vacuum pump is connected to the vacuum water-suction roller. The small steam generation boiler is connected to the steam jet. Through the steam jet, steam is sprayed on the surface of the piece-casting roller and is condensed into a water film. PET melt flows out of the mold head and then forms a film sheet on the piece-casting roller under the action of the water film and the electrostatic adsorption device. The piece-casting roller rotates. The peeling roller carries the film sheet to the next process. Through the vacuum water-suction roller, residual water on the piece-casting roller is removed. Compared with the prior art, the electrostatic adsorption auxiliary device has low raw material electrostatic adsorption requirements, good sheet casting effects and small electrical damage on the product.
Description
Technical field
The present invention relates to a kind of PET capactive film process units, especially relate to a kind of Electrostatic Absorption servicing unit for the production of PET capactive film.
Background technology
The production of biaxially oriented polyester film (be called for short BOPET film) mainly through raw material carry, pre-crystallized, dry, extrude, measure, filtration, slab, longitudinal stretching, cross directional stretch, Thinner Films, sided corona treatment, rolling, cut, pack and form.
Slab is that the uniform and stable melt that extrusion system transports is passed through the die head curtain coating on the slab roller that rotates, and makes it to form unformed sheet, stretches for next procedure.The slab system is comprised of die head, slab roller (cold drum), electrostatic adsorption device and drive motors.
At present, the BOPET film production generally all adopts the method for Electrostatic Absorption to carry out slab, and the most frequently used is static silk or electrostatic belt.Fit on slab roller by up to the electrostatic pressure more than 5kv, the PET melt being adsorbed, thereby complete the slab process.
The technology maturation of the method, but owing to adopting high-pressure electrostatic produces certain destruction to the insulating properties of PET film, thereby causes the dielectric strength of film to diminish, and therefore produces larger adverse effect for high-end particularly ultra-thin PET capactive film.
Summary of the invention
Purpose of the present invention be exactly provide in order to overcome the defective that above-mentioned prior art exists a kind of Electrostatic Absorption to raw material require low, slab is effective, to the electrical property damage of product little be used for the Electrostatic Absorption servicing unit that the PET capactive film is produced.
Purpose of the present invention can be achieved through the following technical solutions:
a kind of Electrostatic Absorption servicing unit for the production of PET capactive film, this Electrostatic Absorption servicing unit and slab roller, die head, electrostatic adsorption device and stripper roll consist of PET capactive film slab formation system jointly, this Electrostatic Absorption servicing unit comprises the vacuum dehydration roller, steam jet, vavuum pump and steam generation arcola, described vacuum dehydration roller and steam jet are located at the back of stripper roll successively along the slab roller direction of rotation, and all be arranged on slab roller around, described vavuum pump is connected with the vacuum dehydration roller, described steam generation arcola is connected with steam jet, the steam of pressure at 0.3～0.35Mpa is provided, described vacuum dehydration roller is cylindrical-shaped structure, and the surface is provided with passage.
Steam jet sprays steam to the slab roller surface uniform, condensation forms water membrane, after the PET melt flows out from die head, good being adsorbed on forms diaphragm on slab roller under the effect of moisture film and electrostatic adsorption device, slab roller rotatablely moves, stripper roll brings to subsequent processing with diaphragm, and diaphragm leaves slab roller, and the vacuum absorption roller is got rid of the residual water on slab roller.
Because there has been this one deck moisture film auxiliary, this moisture film has strengthened the adsorption capacity of diaphragm and slab roller, thereby makes the voltage of electrostatic adsorption device can reduce by 80%, guarantees simultaneously the adsorption effect of slab roller, satisfies the production requirement of ultrathin capactive film.
Compared with prior art, the present invention has the following advantages:
(1) require low to the Electrostatic Absorption of raw material: because the present invention has increased the Electrostatic Absorption servicing unit, when making production, the slab adsorption capacity increases substantially, thereby has alleviated this requirement in Electrostatic Absorption improvement aspect of the raw material;
(2) slab is effective: by the auxiliary absorption of moisture film, slab is effect improved obviously when slab, has avoided the generation of static bubble fully;
(3) the slab process is little to the electrical property damage of product: the decrease of electrostatic potential (80%) during due to slab effectively reduces high-tension electricity to the high pressure damage of PET material, thereby promotes the dielectric strength of final PET capactive film.
Description of drawings
Fig. 1 is work schematic diagram of the present invention.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
Use the work schematic diagram of Electrostatic Absorption servicing unit production PET capactive film of the present invention as shown in Figure 1; This Electrostatic Absorption servicing unit and slab roller 2, die head 1, electrostatic adsorption device 7 and the common formation PET of stripper roll 6 capactive film slab formation system, this Electrostatic Absorption servicing unit comprises vacuum dehydration roller 5, steam jet 4, vavuum pump and steam generation arcola, vacuum dehydration roller 5 and steam jet 4 are located at the back of stripper roll 6 successively along slab roller 2 direction of rotation, and all be arranged on slab roller 2 around, vavuum pump is connected with vacuum dehydration roller 5, the steam generation arcola is connected with steam jet 4, and the steam of pressure at 0.3～0.35Mpa is provided; Vacuum dehydration roller 5 is cylindrical-shaped structure, and the surface is provided with pore.
Steam jet 4 is to slab roller 2 surface sprinkling steam, condensation forms water membrane, after melt flows out from die head 1, good being adsorbed on forms diaphragm 3 on slab roller 2 under the effect of moisture film and electrostatic adsorption device 7, slab roller 2 rotatablely moves, diaphragm 3 is brought to stripper roll 6, and stripper roll 6 brings to subsequent processing with diaphragm 3, and vacuum absorption roller 5 absorbs the residual water on slab roller 2.
This layer moisture film strengthened the adsorption capacity between melt and slab roller 2, because there has been this one deck moisture film auxiliary, thereby makes the voltage of electrostatic adsorption device 7 can reduce by 80%, guarantees simultaneously the adsorption effect of slab roller 2, satisfies the production requirement of ultrathin capactive film.
Claims (2)
1. one kind is used for the Electrostatic Absorption servicing unit that the PET capactive film is produced, this Electrostatic Absorption servicing unit and slab roller, die head, electrostatic adsorption device and stripper roll consist of PET capactive film slab formation system jointly, it is characterized in that, this Electrostatic Absorption servicing unit comprises the vacuum dehydration roller, steam jet, vavuum pump and steam generation arcola, described vacuum dehydration roller and steam jet are located at the back of stripper roll successively along the slab roller direction of rotation, and all be arranged on slab roller around, described vavuum pump is connected with the vacuum dehydration roller, described steam generation arcola is connected with steam jet,
Steam jet sprays steam to the slab roller surface uniform, condensation forms water membrane, after the PET melt flows out from die head, be adsorbed under the effect of moisture film and electrostatic adsorption device and form diaphragm on slab roller, slab roller rotatablely moves, diaphragm is brought to stripper roll, and stripper roll brings to subsequent processing with diaphragm, and the vacuum absorption roller is got rid of the residual water on slab roller.
2. a kind of Electrostatic Absorption servicing unit for the production of PET capactive film according to claim 1, is characterized in that, described vacuum dehydration roller is cylindrical-shaped structure, and the surface is provided with passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101350145A CN103381639A (en) | 2012-05-03 | 2012-05-03 | Electrostatic adsorption auxiliary device for PET capacitance film production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101350145A CN103381639A (en) | 2012-05-03 | 2012-05-03 | Electrostatic adsorption auxiliary device for PET capacitance film production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103381639A true CN103381639A (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101350145A Pending CN103381639A (en) | 2012-05-03 | 2012-05-03 | Electrostatic adsorption auxiliary device for PET capacitance film production |
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| CN (1) | CN103381639A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965742A (en) * | 2016-06-08 | 2016-09-28 | 山东胜通集团股份有限公司 | Polyester optimal film electrostatic adsorption device, adsorption system and adsorption method |
| CN116872418A (en) * | 2023-09-08 | 2023-10-13 | 山东圣和薄膜新材料有限公司 | Sheet casting machine capable of preventing two sides of film from shrinking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0470312A (en) * | 1990-07-02 | 1992-03-05 | Toray Ind Inc | Casting method for molten polymer sheet |
| CN2714284Y (en) * | 2004-05-17 | 2005-08-03 | 佛山塑料集团股份有限公司 | High voltage electrostatic paster device |
| CN101224613A (en) * | 2006-09-06 | 2008-07-23 | 富士胶片株式会社 | Production method of polymer film and production apparatus of the same |
| CN202029296U (en) * | 2011-01-17 | 2011-11-09 | 南通三信塑胶装备科技有限公司 | Static electricity absorbing machine |
| CN202572764U (en) * | 2012-05-03 | 2012-12-05 | 上海紫东薄膜材料股份有限公司 | Static adsorption auxiliary device for water film method |
-
2012
- 2012-05-03 CN CN2012101350145A patent/CN103381639A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0470312A (en) * | 1990-07-02 | 1992-03-05 | Toray Ind Inc | Casting method for molten polymer sheet |
| CN2714284Y (en) * | 2004-05-17 | 2005-08-03 | 佛山塑料集团股份有限公司 | High voltage electrostatic paster device |
| CN101224613A (en) * | 2006-09-06 | 2008-07-23 | 富士胶片株式会社 | Production method of polymer film and production apparatus of the same |
| CN202029296U (en) * | 2011-01-17 | 2011-11-09 | 南通三信塑胶装备科技有限公司 | Static electricity absorbing machine |
| CN202572764U (en) * | 2012-05-03 | 2012-12-05 | 上海紫东薄膜材料股份有限公司 | Static adsorption auxiliary device for water film method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965742A (en) * | 2016-06-08 | 2016-09-28 | 山东胜通集团股份有限公司 | Polyester optimal film electrostatic adsorption device, adsorption system and adsorption method |
| CN116872418A (en) * | 2023-09-08 | 2023-10-13 | 山东圣和薄膜新材料有限公司 | Sheet casting machine capable of preventing two sides of film from shrinking |
| CN116872418B (en) * | 2023-09-08 | 2023-12-05 | 山东圣和薄膜新材料有限公司 | Sheet casting machine capable of preventing two sides of film from shrinking |
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Application publication date: 20131106 |