CN204749224U - Extrusion forming mechanism of plastic film casting machine - Google Patents
Extrusion forming mechanism of plastic film casting machine Download PDFInfo
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- CN204749224U CN204749224U CN201520247640.2U CN201520247640U CN204749224U CN 204749224 U CN204749224 U CN 204749224U CN 201520247640 U CN201520247640 U CN 201520247640U CN 204749224 U CN204749224 U CN 204749224U
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Abstract
The utility model discloses an extrusion forming mechanism of plastic film casting machine, include: a controller. A machine support, the frame includes main frame and time frame, extruding means, extruding means install in on the frame panel, extruding means includes feed inlet, screw extruder and trades the wire stitcher, the distributor, the distributor with screw extruder links to each other, and chill roll, the chill roll includes main chill roll, inferior chill roll and the corresponding primary and secondary driving motor of primary and secondary chill roll, wherein, screw extruder, distributor, chill roll, primary and secondary driving motor with the controller electricity is connected, the chill roll surface all is equipped with tension sensor, tension sensor with the controller electricity is connected, the diameter of main chill roll does the 2 -3 of the diameter of inferior chill roll doubly. The utility model discloses have and to improve the tensile and cooling efficiency of curtain coating, can also make film thickness even, improve tensile strength's beneficial effect.
Description
Technical field
The utility model relates to a kind of extrusion molding mechanism, more specifically, relates to a kind of extrusion molding mechanism of plastic sheeting casting machine.
Background technology
Plastic sheeting casting machine is expressed to chill roll on by extrusion mechanism via extrusion die by the plastic sheeting raw material of melting, by the rotation of chill roll, plastic sheeting raw material stretches along chill roll direction of rotation, drawn by haulage gear after the cooling forming of chill roll and be stretched to straight plastic sheeting, and then packed by rolling on winder.Plastic sheeting casting machine is mainly used in production all types of plastic film, as the flow casting molding film of the materials such as PE, EVA, LDPE.
Existing casting machine production line is primarily of extrusion mechanism, casting structure, corona mechanism, rolling-up mechanism, electrical control mechanism etc. five part composition, its major part adopts single feeding cylinder, Single screw extrusion, some adopts two chill roll mechanism to carry out casting and stretching and cooling, but substantially adopt size, measure-alike chill roll, so easily cause casting and stretching and cooling effectiveness low, easily make film became uneven, the problems such as hot strength is not enough.
Utility model content
For the weak point existed in above-mentioned technology, the purpose of this utility model is to provide a kind of extrusion molding mechanism of plastic sheeting casting machine, and it is except improving casting and stretching and cooling effectiveness, film thickness can also be made even, improve hot strength.
In order to realize, according to these objects of the present utility model and other advantages, providing a kind of extrusion molding mechanism of plastic sheeting casting machine, comprising:
Controller;
Frame, described frame comprises mainframe and time frame, and described mainframe comprises framework panel and the frame leg supporting described framework panel, and described time frame comprises framework soleplate and the two pieces of chassis wall be arranged at before and after described framework soleplate;
Extrusion mechanism, described extrusion mechanism is installed on described framework panel, and described extrusion mechanism comprises charging aperture, screw extruder and net-changing device;
Distributor, described distributor is connected with described screw extruder, is provided with blast pipe above described distributor, is connected with extrusion die below described distributor; And
Chill roll, described chill roll comprises main chill roll, secondary chill roll and the primary and secondary drive motors corresponding with primary and secondary chill roll, described main chill roll transverse strands to be located between described two pieces of chassis wall and to be positioned at below described extrusion die, and described chill roll is arranged at abreast is located at described main chill roll rear;
Wherein, described screw extruder, distributor, chill roll, primary and secondary drive motors are electrically connected with described controller, described chill roll surface is provided with tension pick-up, and described tension pick-up is electrically connected with described controller, and the diameter of described main chill roll is 2-3 times of the diameter of described chill roll.
Preferably, be provided with control cabinet below described frame, described controller is arranged in described control cabinet.
Preferably, described extrusion mechanism also comprises bracing frame and linking arm, support frame as described above and described mainframe affixed, described linking arm connects described distributor and support frame as described above.
Preferably, screen pack is provided with in described net-changing device.
Preferably, below described extrusion die, main chill roll side is provided with air knife.
Preferably, also comprise water circulating pump group, described water circulating pump comprises main cooling water pump and time cooling water pump.
Preferably, described time chill roll rear is provided with guide roller group, and described guide roller group is provided with at least one guide roller.
The utility model compared with prior art, its beneficial effect is: the diameter due to main chill roll is 2-3 times of the diameter of time chill roll, make plastic sheeting raw material can obtain fully extend stretching and cooling on main chill roll, and secondary chill roll can carry out supplementing on cooling forming to main chill roll, thus obtain the plastic sheeting that thickness is even and hot strength is high; Due to main chill roll and the size difference of time chill roll, the energy of complete equipment is fully used and is unlikely to waste, namely not needing additionally to remilitarize a chill roll just can make film fully be stretched; Owing to being provided with screen pack in net-changing device, the impurity of the plastic sheeting raw material of melting misgivings can be fallen, thus the fineness of film and arriving of hot strength are improved.
Part is embodied by explanation below by other advantages of the present utility model, target and feature, part also will by research and practice of the present utility model by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the complete structure view of the extrusion molding mechanism of plastic sheeting casting machine according to an embodiment of the present utility model.
Detailed description of the invention
Be described in further detail the utility model below in conjunction with accompanying drawing, aforementioned and other object, feature, aspect and advantage of the present utility model will become more obvious, can implement according to this to make those skilled in the art's reference description word.
See Fig. 1, the extrusion molding mechanism of plastic sheeting casting machine of the present utility model comprises controller (not shown), mainframe 110, secondary frame 120, extrusion mechanism 130, water circulating pump group 140, distributor 150, air knife 160, frames 170, main chill roll 180 and secondary chill roll 190.
Wherein, mainframe 110 comprises the frame leg of framework panel and frames panel, and secondary frame 120 comprises framework soleplate and the two pieces of chassis wall be arranged at before and after framework soleplate;
Be provided with control cabinet 111 below mainframe 110, control cabinet 111 is built with controller;
Extrusion mechanism 130 is fixedly installed on the panel of mainframe 110, extrusion mechanism 130 comprises charging aperture 131, screw extruder 132, net-changing device 133, net-changing device 134, bracing frame 135 and linking arm 136, bracing frame 135 is affixed with mainframe 110, screen pack is equipped with in net-changing device 133 and net-changing device 134, the plastic sheeting raw material of the melting of being injected by charging aperture 131 can be squeezed into distributor 150 by the screw extrusion apparatus be provided with in screw extruder 132, the impurity of the plastic sheeting raw material of melting misgivings can be fallen by screen pack, thus the fineness of film and arriving of hot strength are improved,
Water circulating pump group 140 is located at below mainframe 110, and it comprises main cooling water pump 141 and time cooling water pump 142;
Distributor 150 is connected with screw extruder 132, the top of distributor 150 is provided with blast pipe 151, the below of distributor 150 is connected with extrusion die 152, linking arm 136 connects distributor 150 and bracing frame 135, distributor 150 receives the molten plastic film raw material after from the filtration of screw extruder 132, molten plastic film raw material after filtering is assigned in the runner of extrusion die 152, be convenient to extrusion film, blast pipe 151 is mainly used in the waste gas of discharging molten plastic film raw material, place in extrusion and produce bubble, extrusion die 152 is mainly used in extruding of plastic sheeting first sample, linking arm 136 and bracing frame 135 are mainly used in fixed distributor 150,
Chill roll comprises main chill roll 180, secondary chill roll 190 and the primary and secondary drive motors corresponding with primary and secondary chill roll, main chill roll 180 transverse strands to be located between two pieces of chassis wall and to be positioned at the below of extrusion die 152, secondary chill roll 190 is arranged at the rear being located at main chill roll 180 abreast, main chill roll 180 is all connected with cooling water inlet/outlet pipe with time chill roll 190, the cooling water inlet/outlet pipe of main chill roll 180 is connected with main cooling water pump 141, the cooling water inlet/outlet pipe of secondary chill roll 190 is connected with time cooling water pump 142, main chill roll 180 is for the first stretching of film and cooling, secondary chill roll 190 is for the stretching again of film and cooling, be connected with recirculated cooling water in chill roll thus realize the cooling of chill roll to plastic sheeting,
Air knife 160 is located at the below of extrusion die 152, the side of main chill roll 180, and the Fast Cooling air that air knife 160 blows out can allow the film extruded be close to main chill roll 180, makes stretching cooling procedure become steady;
Frames 170 comprises frames base and support machine boom 171, frames base and framework soleplate affixed, support machine boom 171 is affixed with frames base, the central shaft of the main chill roll 180 of the rotatable connection of frames wall 171 end, main chill roll 180 can rotate around its central shaft and be used for stretching and cooling film in frames;
Secondary frame 120 is provided with guide roller group, comprises guide roller 121, guide roller 122, guide roller 123 and guide roller 124, after guide roller is mounted on time chill roll, for deriving the plastic sheeting after stretching cooling and shaping;
Screw extruder 132, distributor 150, main chill roll 180, secondary chill roll 190, primary and secondary drive motors is electrically connected with described controller, primary and secondary chill roll surface is equipped with tension pick-up, tension pick-up is electrically connected with controller, thus realize the automatic control of whole system, the diameter of main chill roll 180 is 2-3 times of the diameter of time chill roll 190, make plastic sheeting raw material can obtain fully extend stretching and cooling on main chill roll 180, and secondary chill roll 190 can carry out supplementing on cooling forming to main chill roll 180, thus obtain the plastic sheeting that thickness is even and hot strength is high.
Operation principle: through being expressed to distributor 150 by screw extruder 132 after the plastic sheeting raw material of the melting that charging aperture 131 injects, by the shunting action of distributor 150, squeeze in people's extrusion die 152, after being extruded by extrusion die 152, be close to main chill roll 180 surface, main chill roll 180 can on one side circumgyration stretch film while cool for the first time film, the temperature of first cooling rear film is between 35 DEG C ~ 40 DEG C, again stretch and cool through time chill roll 190 through first stretching and cooled film again, the temperature again cooling rear film is about 30 DEG C, by guide roller group, the film of cooling forming is derived again afterwards, in order to ensure the thickness of film, by the control of tension pick-up and controller, the tension force of film is controlled between 100N ~ 150N.
Here the number of devices illustrated and treatment scale are used to simplify explanation of the present utility model.Application of the present utility model, modifications and variations be will be readily apparent to persons skilled in the art.
As mentioned above, according to the utility model, owing to being equipped with screen pack in net-changing device 133 and net-changing device 134, the impurity of the plastic sheeting raw material of melting misgivings can be fallen by screen pack, thus the fineness of film and arriving of hot strength are improved; Diameter due to main chill roll 180 is 2-3 times of the diameter of time chill roll 190, make plastic sheeting raw material can obtain fully extend stretching and cooling on main chill roll 180, and secondary chill roll 190 can carry out supplementing on cooling forming to main chill roll 180, thus obtain the plastic sheeting that thickness is even and hot strength is high; The Fast Cooling air blown out due to air knife 160 can allow the film extruded be close to main chill roll 180, makes stretching cooling procedure become steady; Due to main chill roll 180 and the size difference of time chill roll 190, the energy of complete equipment be fully used and be unlikely to waste, namely not needing additionally to remilitarize a chill roll and film just can be made fully to be stretched.
Although embodiment of the present utility model is open as above, but it is not limited in listed in description and embodiment utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (7)
1. an extrusion molding mechanism for plastic sheeting casting machine, is characterized in that, comprising:
Controller;
Frame, described frame comprises mainframe and time frame, and described mainframe comprises framework panel and the frame leg supporting described framework panel, and described time frame comprises framework soleplate and the two pieces of chassis wall be arranged at before and after described framework soleplate;
Extrusion mechanism, described extrusion mechanism is installed on described framework panel, and described extrusion mechanism comprises charging aperture, screw extruder and net-changing device;
Distributor, described distributor is connected with described screw extruder, is provided with blast pipe above described distributor, is connected with extrusion die below described distributor; And
Chill roll, described chill roll comprises main chill roll, secondary chill roll and the primary and secondary drive motors corresponding with primary and secondary chill roll, described main chill roll transverse strands to be located between described two pieces of chassis wall and to be positioned at below described extrusion die, and described chill roll is arranged at abreast is located at described main chill roll rear;
Wherein, described screw extruder, distributor, chill roll, primary and secondary drive motors are electrically connected with described controller, described chill roll surface is equipped with tension pick-up, and described tension pick-up is electrically connected with described controller, and the diameter of described main chill roll is 2-3 times of the diameter of described chill roll.
2. the extrusion molding mechanism of plastic sheeting casting machine as claimed in claim 1, it is characterized in that, be provided with control cabinet below described frame, described controller is arranged in described control cabinet.
3. the extrusion molding mechanism of plastic sheeting casting machine as claimed in claim 1 or 2, it is characterized in that, described extrusion mechanism also comprises bracing frame and linking arm, support frame as described above and described mainframe affixed, described linking arm connects described distributor and support frame as described above.
4. the extrusion molding mechanism of plastic sheeting casting machine as claimed in claim 1, is characterized in that, be provided with screen pack in described net-changing device.
5. the extrusion molding mechanism of plastic sheeting casting machine as claimed in claim 1, is characterized in that, below described extrusion die, main chill roll side is provided with air knife.
6. the extrusion molding mechanism of plastic sheeting casting machine as claimed in claim 1, is characterized in that, also comprise water circulating pump group, and described water circulating pump comprises main cooling water pump and time cooling water pump.
7. the extrusion molding mechanism of plastic sheeting casting machine as claimed in claim 6, it is characterized in that, described time chill roll rear is provided with guide roller group, and described guide roller group is provided with at least one guide roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247640.2U CN204749224U (en) | 2015-04-22 | 2015-04-22 | Extrusion forming mechanism of plastic film casting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520247640.2U CN204749224U (en) | 2015-04-22 | 2015-04-22 | Extrusion forming mechanism of plastic film casting machine |
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| CN204749224U true CN204749224U (en) | 2015-11-11 |
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| CN201520247640.2U Active CN204749224U (en) | 2015-04-22 | 2015-04-22 | Extrusion forming mechanism of plastic film casting machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217802A (en) * | 2016-08-10 | 2016-12-14 | 广东仕诚塑料机械有限公司 | A kind of film production manufacture method |
| CN106217891A (en) * | 2016-08-10 | 2016-12-14 | 广东仕诚塑料机械有限公司 | A kind of film production manufactures equipment |
| CN106584803A (en) * | 2016-12-26 | 2017-04-26 | 张家港市大能塑料制品有限公司 | Bolt extruding machine |
| CN109177249A (en) * | 2018-09-27 | 2019-01-11 | 浙江恒成高分子材料有限公司 | Plastic film manufacturing and processing equipment |
-
2015
- 2015-04-22 CN CN201520247640.2U patent/CN204749224U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217802A (en) * | 2016-08-10 | 2016-12-14 | 广东仕诚塑料机械有限公司 | A kind of film production manufacture method |
| CN106217891A (en) * | 2016-08-10 | 2016-12-14 | 广东仕诚塑料机械有限公司 | A kind of film production manufactures equipment |
| CN106217891B (en) * | 2016-08-10 | 2019-04-16 | 广东仕诚塑料机械有限公司 | A kind of film production manufacturing equipment |
| CN106584803A (en) * | 2016-12-26 | 2017-04-26 | 张家港市大能塑料制品有限公司 | Bolt extruding machine |
| CN109177249A (en) * | 2018-09-27 | 2019-01-11 | 浙江恒成高分子材料有限公司 | Plastic film manufacturing and processing equipment |
| CN109177249B (en) * | 2018-09-27 | 2023-09-12 | 浙江恒成高分子材料有限公司 | Plastic film production and processing equipment |
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