CN1385295A - Method and equipment for producing bidirectional stretching plastic film - Google Patents
Method and equipment for producing bidirectional stretching plastic film Download PDFInfo
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- CN1385295A CN1385295A CN 02115317 CN02115317A CN1385295A CN 1385295 A CN1385295 A CN 1385295A CN 02115317 CN02115317 CN 02115317 CN 02115317 A CN02115317 A CN 02115317A CN 1385295 A CN1385295 A CN 1385295A
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Abstract
The present invention discloses a method for producing two-way stretched plastic film and equipment, including the procedures of extrusion, blowing-up and drawing, edge-cutting and film-breaking and film-rolling. It is characterized by that in the blowing-up and drawing procedure the plastic film tube discharged from extrusion procedure can be pulled to the upper portion of tower frame, reheated to high-elastic drawable temp.,and the proper qantity of air can be charged into the tube film, then the tube film is longitudinally progressively and quickly drawn and laterally stretched toward both sides, then heat-set. Said invention simplifies production process, and reduces cost of equipment.
Description
Technical field
The present invention relates to technical field of plastic, more specifically to a kind of method and apparatus of producing bidirectional stretching plastic film.
Background technology
Existing bidirectional stretching plastic film after blowing or curtain coating obtain certain thickness sheet film, makes film carry out abundant cross directional stretch through the cross directional stretch device, this equipment price costliness, complex process, product cost height.
Summary of the invention
The purpose of this invention is to provide a kind of technology and simply produce the method and apparatus of bidirectional stretching plastic film.
The method of production bidirectional stretching plastic film provided by the present invention is design like this:
A kind of method of producing bidirectional stretching plastic film, comprise operations such as extrusion molding, inflation stretching, cutting edge rupture of membranes, film take-up, it is characterized in that: in the inflation stretching process, to draw to pylon top by the plastic foil pipe that comes out in the extrusion molding operation, but be heated to the draft temperature of elastomeric state again, stretch through longitudinal traction roller step by step anxious speedup by charging into an amount of air in the periosteum this moment, and outwards stretch by horizontal both sides at same space-time, enter thermal finalization then.
The equipment of production bidirectional stretching plastic film provided by the present invention is design like this:
It comprises the film extrusion device, and stretching and drawing device, cooling device, platform wrap-up and electrical control gear etc. is characterized in that: be provided with the rotatable heater that is used for the film biaxial tension on stretching and drawing device top.
But the present invention uses the periosteum inflation method then owing to adopt periosteum to be heated to the draft temperature of elastomeric state earlier, charges into compressed air in socket shape film, with bigger blow-up ratio, makes film carry out vertical and horizontal and stretches, finalizes the design.No longer need cross directional stretch to handle, also no longer need original cross directional stretch device, therefore simplified production technology, reduced equipment price.
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
Fig. 2 is the present device structural representation.
1, hopper, 2, extruder, 3, Die-head connecting sleeve, 4, bubble pipe die head, 5, vane, 6, first nip rolls, 7, cooling water tank, 8, carrying roller, 9, carrying roller, 10, second nip rolls, 11, rotatable heater, 12, rotatable heater, 13, rotation cooling vane, 14, the rotation cooling vane, 15, the sizing dish, 16, guiding clamping plate, 17, longitudinal traction roller, 18, the cutting edge film breaking unit, 19, carrying roller, 20, carrying roller, 21, auxiliary nip rolls, 22, wrap-up, 23, the cutting edge blower, 24, rotary platform, 25, the hauling machine support.
The specific embodiment
The equipment of production bidirectional stretching plastic film provided by the present invention is design like this: it comprises film extrusion device, stretching and drawing device, cooling device, platform wrap-up and electrical control gear etc., it is characterized in that: be provided with the biaxial tension rotatable heater 11,12 that is used for the film biaxial tension on stretching and drawing device top.
Be described further below in conjunction with the method for accompanying drawing bidirectional stretching plastic film provided by the present invention:
After stock was entered by hopper 1, through extruder 2 fusings, extrusion plastic, the film head connect the plastics introduction bubble pipe die head 4 that cover 3 mixes the extruding machine fusing, and bubble pipe die head 4 is the film tubulose with the molten plastic extrusion molding.By the first folder rod 6 the plastic foil pipe is drawn by die head, and control thickness, quicken film pipe cooling and shaping through vane 5 coolings and cooling water tank 7, then through carrying roller 8,9 press from both sides rod 10 by second draws to pylon top, again by rotatable heater 11, but 12 are heated to the draft temperature of elastomeric state, this moment is by charging into an amount of air in the periosteum, stretch through the anxious step by step speedup of longitudinal traction roller 17, and outwards stretch by horizontal both sides at same space-time, and control vacuolar membrane thickness, rotation cooling vane 13,14 make the evenly cooling of film bubble, typing, sizing dish 15 stable bubble diameters, guiding clamping plate 16 stable bubble shapes, the film bubble is flattened along certain angle, introduce traction nip rolls 17, enter thermal finalization then, cutting edge film breaking unit 18 breaks the film bubble and is diaphragm, or cut out whole film limit, auxiliary nip rolls 21 increases cutting edge tension force, make the edge after cutting smooth, diaphragm is respectively through carrying roller 19,20 are sent to wrap-up 22, and wrap-up 22 batches plastic sheeting, and cutting edge blower 23 blows away the cutting edge cutter and carries the featheredge of cutting.Coiled strip and cutting edge material through disqualified upon inspection enter the regeneration grain-making machine, and regenerative granular material that comes out and new pellet enter batch mixer together and utilize again.
Also can on hauling machine support 25, establish a rotary platform 24, transmission device by rotary platform 24 belows makes rotary platform 24 slowly with 360 degree rotations, thereby drives clamping plate, nip rolls and wrap-up rotation, makes the film cooling evenly, can when batching plastic sheeting, batch smooth.
Claims (4)
1, a kind of method of producing bidirectional stretching plastic film, comprise operations such as extrusion molding, inflation stretching, cutting edge rupture of membranes, film take-up, it is characterized in that: in the inflation stretching process, to draw to pylon top by the plastic foil pipe that comes out in the extrusion molding operation, but be heated to the draft temperature of elastomeric state again, stretch through longitudinal traction roller step by step anxious speedup by charging into an amount of air in the periosteum this moment, and outwards stretch by horizontal both sides at same space-time, enter thermal finalization then.
2, a kind of equipment of producing bidirectional stretching plastic film, comprise the film extrusion device, stretching and drawing device, cooling device, platform wrap-up and electrical control gear etc. is characterized in that: be provided with rotatable heater (11), (12) that are used for the film biaxial tension on stretching and drawing device top.
3, a kind of method of producing bidirectional stretching plastic film according to claim 1 is characterized in that: in above-mentioned film take-up operation, adopt rotary platform (24) to drive clamping plate, nip rolls and wrap-up rotation, the method for batching plastic sheeting.
4, a kind of equipment of producing bidirectional stretching plastic film according to claim 2 is characterized in that: above-mentioned platform wrap-up is a kind of rotary platform wrap-up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02115317 CN1385295A (en) | 2002-06-03 | 2002-06-03 | Method and equipment for producing bidirectional stretching plastic film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02115317 CN1385295A (en) | 2002-06-03 | 2002-06-03 | Method and equipment for producing bidirectional stretching plastic film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1385295A true CN1385295A (en) | 2002-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02115317 Pending CN1385295A (en) | 2002-06-03 | 2002-06-03 | Method and equipment for producing bidirectional stretching plastic film |
Country Status (1)
| Country | Link |
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| CN (1) | CN1385295A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297386C (en) * | 2003-01-27 | 2007-01-31 | 海南赛诺实业有限公司 | Method for producing two-way stretching polypropylene film for cigarette by pipe soaking method |
| WO2009135341A1 (en) * | 2008-05-04 | 2009-11-12 | Yang Chi-Tsan | A method of making a shrinkable plastic film by environment-friendly resin materials |
| CN102114705A (en) * | 2009-12-31 | 2011-07-06 | 上海青兴吉包装材料有限公司 | Film blowing device for highly-filled plastic films |
| CN104015349A (en) * | 2014-06-10 | 2014-09-03 | 四川大学 | Online thermal control device and method of PLA (polylactic acid) blown film |
| CN104111200A (en) * | 2014-07-15 | 2014-10-22 | 中国兵器工业集团第五三研究所 | Thermal stretching device for thin sheet |
| CN104520219A (en) * | 2012-10-23 | 2015-04-15 | 株式会社吴羽 | Method and apparatus for manufacturing wound body |
| CN105437528A (en) * | 2015-12-09 | 2016-03-30 | 无锡西源电力装备厂 | Film blowing machine with film coating function |
| CN107498760A (en) * | 2017-07-24 | 2017-12-22 | 天津泽恒包装制品有限公司 | Wind film wrap-up |
| CN108527827A (en) * | 2016-06-23 | 2018-09-14 | 浙江汇锋薄膜科技有限公司 | A kind of improved PVC inflation film manufacturing machines |
| CN109093997A (en) * | 2018-10-25 | 2018-12-28 | 刘宝龙 | A kind of continous way vertically and horizontally film stretching apparatus |
| CN112092326A (en) * | 2020-09-10 | 2020-12-18 | 谢富玉 | Plastic freshness protection package preparation processing machinery and preparation processing method |
| CN114603841A (en) * | 2022-03-25 | 2022-06-10 | 安庆市康明纳包装有限公司 | Film production process |
| CN114654711A (en) * | 2022-03-25 | 2022-06-24 | 安庆市康明纳包装有限公司 | Composite film production device |
-
2002
- 2002-06-03 CN CN 02115317 patent/CN1385295A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297386C (en) * | 2003-01-27 | 2007-01-31 | 海南赛诺实业有限公司 | Method for producing two-way stretching polypropylene film for cigarette by pipe soaking method |
| WO2009135341A1 (en) * | 2008-05-04 | 2009-11-12 | Yang Chi-Tsan | A method of making a shrinkable plastic film by environment-friendly resin materials |
| CN102114705A (en) * | 2009-12-31 | 2011-07-06 | 上海青兴吉包装材料有限公司 | Film blowing device for highly-filled plastic films |
| CN104520219A (en) * | 2012-10-23 | 2015-04-15 | 株式会社吴羽 | Method and apparatus for manufacturing wound body |
| CN104015349A (en) * | 2014-06-10 | 2014-09-03 | 四川大学 | Online thermal control device and method of PLA (polylactic acid) blown film |
| CN104111200A (en) * | 2014-07-15 | 2014-10-22 | 中国兵器工业集团第五三研究所 | Thermal stretching device for thin sheet |
| CN105437528A (en) * | 2015-12-09 | 2016-03-30 | 无锡西源电力装备厂 | Film blowing machine with film coating function |
| CN108527827A (en) * | 2016-06-23 | 2018-09-14 | 浙江汇锋薄膜科技有限公司 | A kind of improved PVC inflation film manufacturing machines |
| CN107498760A (en) * | 2017-07-24 | 2017-12-22 | 天津泽恒包装制品有限公司 | Wind film wrap-up |
| CN109093997A (en) * | 2018-10-25 | 2018-12-28 | 刘宝龙 | A kind of continous way vertically and horizontally film stretching apparatus |
| CN109093997B (en) * | 2018-10-25 | 2021-03-09 | 刘宝龙 | Continuous longitudinal and transverse film stretching equipment |
| CN112092326A (en) * | 2020-09-10 | 2020-12-18 | 谢富玉 | Plastic freshness protection package preparation processing machinery and preparation processing method |
| CN114603841A (en) * | 2022-03-25 | 2022-06-10 | 安庆市康明纳包装有限公司 | Film production process |
| CN114654711A (en) * | 2022-03-25 | 2022-06-24 | 安庆市康明纳包装有限公司 | Composite film production device |
| WO2023030490A1 (en) * | 2022-03-25 | 2023-03-09 | 安庆市康明纳包装有限公司 | Film production process |
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