CN101659752B - Apparatus for manufacturing water-soluble PVA casting film - Google Patents
Apparatus for manufacturing water-soluble PVA casting film Download PDFInfo
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- CN101659752B CN101659752B CN2009101527567A CN200910152756A CN101659752B CN 101659752 B CN101659752 B CN 101659752B CN 2009101527567 A CN2009101527567 A CN 2009101527567A CN 200910152756 A CN200910152756 A CN 200910152756A CN 101659752 B CN101659752 B CN 101659752B
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Abstract
The invention relates to an apparatus for manufacturing a water-soluble PVA casting film, aiming at overcoming the defects of the prior art that the manufacturing is unstable and the constant manufacturing can not be ensured. The device comprises a stirring kettle, a liquid-storing tank and a buffer groove which are connected in series through pipelines, wherein the bottom of the buffer groove is connected with a strip-shaped liquid-draining groove, and an adjusting shaft penetrates the liquid-draining groove. The stainless steel conveying belt of a tracked conveying device penetrates an oven, and one end of the tracked conveying device corresponds to the position of the liquid-draining groove and the other end thereof corresponds to the position of a first heating roller set; and a shaping roller set is arranged on the corresponding position of a last heating roller set, and a traction device and a winding device are sequentially arranged at the back of the shaping roller set. The heating roller sets and the shaping roller set of the invention all comprise oil-medium heating rollers and silicon rubber compressing rollers, wherein the surface of each silicon rubber compressing roller is designed to be a heat-resisting silicon rubber layer and two ends thereof are respectively connected with a pneumatic pressure regulating device; and the oil-medium heating rollers are made of steel and adopt the oil-medium heating as a heating manner. The apparatus can realize the continuous manufacturing of the water-soluble PVA casting film so as to realize the industrial application.
Description
Technical field
The invention belongs to mechanical means, relate to a kind of apparatus for manufacturing water-soluble PVA casting film.
Background technology
The full great majority of existing cast film unit all are PP, PE, EVA or the like polymeric resin single or multiple lift coextrusion casting film units, can not be used to produce the water-solubility PVA cast film.At present, the water-solubility PVA cast film all is through blow moiding method production, is exactly with extrusion-blown modling behind the polyvinyl alcohol modification.But this method is produced very unstable, can't serialization production, be difficult to realize industrial applications.
Summary of the invention
The object of the invention is exactly the deficiency to prior art, and a kind of apparatus for manufacturing water-soluble PVA casting film is provided.This device adopts crawler belt and oily medium warming mill, can realize the serialization production of water-solubility PVA degradable film.
The present invention includes stirring tank, container for storing liquid, dashpot, adjusting motor, track conveying device, baking oven, warming mill group, setting roll group, towing mechanism and wind2.
The top of stirring tank is provided with charging opening, the bottom is provided with discharge port; The top of container for storing liquid is provided with opening for feed, the bottom is provided with liquid outlet; Be disposed with one-level filter screen and secondary filter screen in the container for storing liquid from top to bottom, the order number of one-level filter screen is less than the order number of secondary filter screen; The discharge port of stirring tank is connected with the discharging pipeline, and the outlet of discharging pipeline is corresponding with the opening for feed position of container for storing liquid, and the discharging pipeline is provided with the one-level transferpump; Dashpot is rectangular bucket shape; The top of dashpot is provided with fluid inlet; The bottom of dashpot is that bucket shape closes up, and dashpot bucket shape bottom is connected with the liquid outlet groove of long strip shape, and regulating shaft passes the liquid outlet groove setting; Described regulating shaft is attacked screw thread in the opposite direction with the liquid outlet groove for the both sides, center, and the PTO of regulating motor is connected with regulating shaft; The liquid outlet of container for storing liquid and the fluid inlet of dashpot are through the fluid pipeline connection, and the fluid pipeline is provided with the two-stage conveying pump; Described track conveying device comprises cycloconveyor belt and the driving wheel that is in series through hinge by stainless steel plate, and conveying belt passes the baking oven setting, and the top in the baking oven is provided with fan; One end of track conveying device is corresponding with the liquid outlet groove position of dashpot, the other end is corresponding with first warming mill group position in 2～4 warming mill groups that laterally arrange; Last warming mill group correspondence position is provided with the setting roll group, and the setting roll group is parallel with the warming mill group; Setting roll group rear is disposed with towing mechanism and wind2; Described warming mill group is identical with setting roll group structure; Specifically: comprise oily medium warming mill and Zylox pressure roller; The surface of Zylox pressure roller is heat-resisting silastic-layer; Zylox pressure roller two ends connect the Pneumatic pressure setting device, and oily medium warming mill is a steel rider, have the oil pipe road near surface location in the steel rider; The hot oiling machine is communicated with, is communicated with the interior oil pipe road of oily another side of medium warming mill through used oil pipe through the oil pipe road in side of in-line and oily medium warming mill, and in-line is provided with circular-pump.
Towing mechanism among the present invention is a conventional machinery equipment with the Pneumatic pressure setting device that wind2 and Zylox pressure roller two ends are connected.
Apparatus of the present invention can be carried out the stably manufactured of water-solubility PVA degradable film, and can according to the PVA resin raw material and difference such as water-solubility PVA viscosity adjust accordingly, thereby can serialization production, and then realize industrial applications.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an oily medium warming mill synoptic diagram among Fig. 1.
Embodiment
As shown in Figure 1, apparatus for manufacturing water-soluble PVA casting film comprises stirring tank 6, container for storing liquid 3, dashpot 7, regulates motor 18, track conveying device 16, baking oven 9, warming mill group, setting roll group, towing mechanism 13 and wind2 12.
The top of stirring tank 6 is provided with charging opening, the bottom is provided with discharge port; The top of container for storing liquid 3 is provided with opening for feed, the bottom is provided with liquid outlet; Be disposed with one-level filter screen 2 and secondary filter screen 1 in the container for storing liquid 3 from top to bottom, one-level filter screen 2 is arranged with secondary filter screen 1 average level.The order number of one-level filter screen and secondary filter screen is between 250～300 orders, and the order number of one-level filter screen is less than the order number of secondary filter screen.The discharge port of stirring tank 6 is connected with discharging pipeline 5, and the outlet of discharging pipeline 5 is corresponding with the opening for feed position of container for storing liquid, and discharging pipeline 5 is provided with one-level transferpump 4.Dashpot 7 is rectangular bucket shape, and the top of dashpot 7 is provided with fluid inlet, and the bottom of dashpot 7 is that bucket shape closes up, and dashpot bucket shape bottom is connected with the liquid outlet groove 17 of long strip shape, and the length of liquid outlet groove 17 is exactly the width of water-solubility PVA cast film.Regulating shaft 19 passes liquid outlet groove 17 and is provided with.Regulating shaft 19 is that screw thread in the opposite direction is attacked on the both sides, center with liquid outlet groove 17, and the PTO of regulating motor 18 is connected with regulating shaft 19.The liquid outlet of container for storing liquid 3 is communicated with through fluid pipeline 20 with the fluid inlet of dashpot 7, and fluid pipeline 20 is provided with two-stage conveying pump 21.Track conveying device 16 comprises cycloconveyor belt and the driving wheel that is in series through hinge by stainless steel plate, and conveying belt passes baking oven 9 and is provided with, and the top in the baking oven 9 is provided with fan 8.One end of track conveying device 16 is corresponding with liquid outlet groove 17 positions of dashpot, the other end is corresponding with first warming mill group position in 3 warming mill groups that laterally arrange; Last warming mill group correspondence position is provided with the setting roll group, and the setting roll group is parallel with the warming mill group.Setting roll group rear is disposed with towing mechanism 13 and wind2 12, and towing mechanism 13 adopts device commonly used in the thin film industry with wind2 12.Each warming mill group comprises oily medium warming mill 11 and Zylox pressure roller 10, and the surface of Zylox pressure roller 10 is heat-resisting silastic-layer, and Zylox pressure roller 10 two ends connect the Pneumatic pressure setting device.The setting roll group adopts the structure identical with the warming mill group, comprises oily medium warming mill 14 and Zylox pressure roller 15, and the surface of Zylox pressure roller 15 is heat-resisting silastic-layer, and Zylox pressure roller 15 two ends connect the Pneumatic pressure setting device.Like Fig. 2; Oily medium warming mill in setting roll group and the warming mill group is a steel rider; Have oil pipe road 22 near surface location in the steel rider; Hot oiling machine 24 is communicated with, is communicated with the interior oil pipe road of oily another side of medium warming mill through used oil pipe 23 through the oil pipe road in side of in-line 26 and oily medium warming mill, and 26 are provided with circular-pump 25 on the in-line.
It is following to utilize this device to carry out the process that the water-solubility PVA cast film produces:
At first at a certain temperature according to a certain percentage with softening agent, stablizer, properties-correcting agent, tensio-active agent and deionized water and Z 150PH (PVA); Putting into stirring tank 6 fully stirs; Mix, process sticking shape liquid, the PVA temperature is controlled between 70 ℃～90 ℃.Put the sticking shape liquid for preparing through the one-level transferpump and to send in the container for storing liquid 3, filter, will not have the filtering of dissolved PVA macromolecular particle through the twice of one-level filter screen and secondary filter screen; Make sticking shape liquid even; Prevent to produce transparency, intensity, uneven substandard products PVA such as thickness film.Liquid is regulated the solubleness size of sticking shape liquid through the height of temperature controlling system regulation and control solution temperature in container for storing liquid.
To glue shape liquid through two-stage conveying pump 21 again and all be transported to dashpot 7, flow out on the stainless steel conveying belt of track conveying device 16 by the liquid outlet groove 17 of dashpot 7 bottoms, conveying belt through gear drive with turn back and auto-tensioning.According to the viscosity of PVA, the speed of crawler belt rotating speed is regulated the size of curtain coating gap, thus control out product PVA film the requirements such as thickness that will reach.Regulating the curtain coating gap is exactly the width that adjusts liquid bath 17; Specifically be to utilize to regulate 19 rotations of motor 18 drive regulating shafts, be provided with because regulating shaft 19 passes liquid outlet groove 17, and regulating shaft 19 be that screw thread in the opposite direction is attacked on the both sides, center with liquid outlet groove 17; When regulating shaft 19 is just changeing; Regulating shaft 19 shrinks (being that the curtain coating gap reduces) with liquid outlet groove 17, and when regulating shaft 19 counter-rotatings, regulating shaft 19 is with liquid outlet groove 17 expansions (being that the curtain coating gap increases).
Track conveying device 16 is sent effusive PVA casting films into baking oven 9 heating; According to the PVA resin raw material and water-solubility PVA viscosity different; The corresponding change of TR of control baking oven 9; General temperature all is controlled between 80 degrees centigrade to 150 degrees centigrade, and the tops in the baking oven 9 are provided with the evenly interior temperature of baking oven 9 of fan 8.After baking oven 9 comes out; The PVA casting films that contains small amount of moisture is sent on the oily medium warming mill 11; 3 oily medium warming mills of this that wherein touches at first are to be used for heating the PVA casting films that contains small amount of moisture, and temperature generally is controlled between 80 degrees centigrade to 120 degrees centigrade.The pneumatics that Zylox pressure roller 10 is provided with together with two ends; Not only compress the PVA film together with oily medium warming mill 11; And transmit the PVA film, and the pressure between oily medium warming mill and the Zylox pressure roller can be regulated and control, and the pressure at Zylox pressure roller two ends makes equal; If pressure does not wait; Cause phenomenons such as PVA cast film sideslip and film uneven distribution, control the thickness of PVA film through the pneumatics regulation and control pressure between them, the pneumatics that Zylox pressure roller two ends are provided with adopts routine techniques.The size of oil medium warming mill 11 temperature is by 24 controls of hot oiling machine, hot oiling machine 24, in-line 26, constituted the hot oiling unit through used oil pipe 23, circular-pump 25 and oily medium warming mill 11.
Add PVA film behind the heat abstraction moisture through heat setting type, traction with curl and promptly produce qualified PVA cast film.
Claims (1)
1. apparatus for manufacturing water-soluble PVA casting film comprises stirring tank, container for storing liquid, dashpot, adjusting motor, track conveying device, baking oven, warming mill group, setting roll group, towing mechanism and wind2, it is characterized in that:
The top of described stirring tank is provided with charging opening, the bottom is provided with discharge port; The top of described container for storing liquid is provided with opening for feed, the bottom is provided with liquid outlet; Be disposed with one-level filter screen and secondary filter screen in the container for storing liquid from top to bottom, the order number of one-level filter screen is less than the order number of secondary filter screen; The discharge port of stirring tank is connected with the discharging pipeline, and the outlet of discharging pipeline is corresponding with the opening for feed position of container for storing liquid, and the discharging pipeline is provided with the one-level transferpump; Described dashpot is rectangular bucket shape, and the top of dashpot is provided with fluid inlet, the bottom is that bucket shape closes up, and dashpot bucket shape bottom is connected with the liquid outlet groove of long strip shape, and regulating shaft passes the liquid outlet groove setting; Described regulating shaft is attacked screw thread in the opposite direction with the liquid outlet groove for the both sides, center, and the PTO of regulating motor is connected with regulating shaft; The liquid outlet of container for storing liquid and the fluid inlet of dashpot are through the fluid pipeline connection, and the fluid pipeline is provided with the two-stage conveying pump; Described track conveying device comprises cycloconveyor belt and the driving wheel that is in series through hinge by stainless steel plate, and conveying belt passes the baking oven setting, and the top in the baking oven is provided with fan; One end of track conveying device is corresponding with the liquid outlet groove position, the other end is corresponding with first warming mill group position in 2～4 warming mill groups that laterally arrange; Last warming mill group correspondence position is provided with the setting roll group, and setting roll group and warming mill group laterally arrange; Described warming mill group is identical with setting roll group structure; Specifically: comprise oily medium warming mill and Zylox pressure roller; The surface of Zylox pressure roller is heat-resisting silastic-layer; Zylox pressure roller two ends connect the Pneumatic pressure setting device, and oily medium warming mill is a steel rider, have the oil pipe road near surface location in the steel rider; The hot oiling machine is communicated with, is communicated with the interior oil pipe road of oily another side of medium warming mill through used oil pipe through the oil pipe road in side of in-line and oily medium warming mill, and in-line is provided with circular-pump; Setting roll group rear is disposed with towing mechanism and wind2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101527567A CN101659752B (en) | 2009-09-28 | 2009-09-28 | Apparatus for manufacturing water-soluble PVA casting film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101527567A CN101659752B (en) | 2009-09-28 | 2009-09-28 | Apparatus for manufacturing water-soluble PVA casting film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101659752A CN101659752A (en) | 2010-03-03 |
| CN101659752B true CN101659752B (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101527567A Expired - Fee Related CN101659752B (en) | 2009-09-28 | 2009-09-28 | Apparatus for manufacturing water-soluble PVA casting film |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5422621B2 (en) * | 2011-09-05 | 2014-02-19 | 富士フイルム株式会社 | Ring band moving direction control device, casting equipment, and solution casting method |
| CN103386694B (en) * | 2012-05-11 | 2016-03-16 | 万向电动汽车有限公司 | A kind of aluminum plastic film degree of depth rushes pit device |
| CN103171073B (en) * | 2013-03-22 | 2016-01-20 | 南通三信塑胶装备科技股份有限公司 | The adjustable hydrolysis plastic film production process of a kind of temperature |
| CN111484713B (en) * | 2020-03-24 | 2022-09-30 | 杭州奥风科技有限公司 | Degradable biomembrane casting machine |
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| CN101659752A (en) | 2010-03-03 |
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Owner name: HAIAN SERVICE CENTER FOR TRANSFORMATION OF SCIENTI Free format text: FORMER OWNER: HANGZHOU ELECTRONIC SCIENCE AND TECHNOLOGY UNIV Effective date: 20140701 |
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Effective date of registration: 20140701 Address after: 226600 No. 106 middle Yangtze Road, Haian County, Nantong, Jiangsu Patentee after: Haian Service Center for Transformation of Scientific Achievements Address before: Hangzhou City, Zhejiang province 310018 Jianggan District Xiasha Higher Education Park No. 2 street Patentee before: Hangzhou Electronic Science and Technology Univ |
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