CN101249713B - Macromolecule plastic membrane pressurized injection molding method and molding system - Google Patents
Macromolecule plastic membrane pressurized injection molding method and molding system Download PDFInfo
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- CN101249713B CN101249713B CN2007100903713A CN200710090371A CN101249713B CN 101249713 B CN101249713 B CN 101249713B CN 2007100903713 A CN2007100903713 A CN 2007100903713A CN 200710090371 A CN200710090371 A CN 200710090371A CN 101249713 B CN101249713 B CN 101249713B
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Abstract
The invention relates to a filtering machine used macromolecular plastic diaphragm shaping method and a system. Macromolecular plastifying plastic in molten state is fed into a pressure device and is pressurized and then injected into the shaping cavity of a macromolecular plastic diaphragm mould through the pressure device, and after being cooled and being formed, the mould is opened and diaphragms can be taken out. The invention has the advantages that: firstly, the plastic in molten state is quickly pressurized and then injected into the shaping mould of the macromolecular plastic diaphragm by adopting the pressure device, therefore the default in the background technique is avoided, and the manufacture of the macromolecular plastic thin wall diaphragm with super-wide format is realized; secondly, the design of the macromolecular hot runner shaping mould provided with a self-heating device can not only solve the manufacture of thin wall plastic diaphragm, but also greatly reduce production cost, improve production efficiency, and ensure steady and reliable product quality and good surface smoothness, therefore the technology problems which are required to be solved but actually not solved for a long time are solved.
Description
Technical field
The present invention relates to a kind of filter macromolecule plastic membrane forming method, and, belong to macromolecule plastic membrane forming method and formation system and make the field for realizing the system of this method.
Background technology
The patent No. 03101314.7, title " press filter plastic barrier film injection molding method and equipment ", plastic raw materials in this method is by behind the injection moulding part heating plasticizing of injection machine, inject the hot flow path of hot runner molding mould, die sinking can be taken out diaphragm behind moulding in heated nozzle enters the plastic diaphragms mold cavity, the cooling and shaping again.In the operation of reality, adopt the injection moulding part of injection machine to inject the hot flow path of hot runner molding mould behind the plastic raw materials heating plasticizing, moulding in heated nozzle enters the plastic diaphragms mold cavity again, the problem that the plastic diaphragms of institute's moulding exists is: the one, because the plastics behind the heating plasticizing, its viscosity and density are very big, can't enter in the die cavity of plastic diaphragms mould by hot flow path in the hot runner molding mould and heated nozzle apace at all, directly have influence on the Forming Quality of plastic diaphragms; The 2nd, because the injection pressure that the injection moulding of injection machine part is produced can't satisfy the required pressure of plastic diaphragms moulding far away, so plastic diaphragms of institute's moulding, not only density does not reach requirement, and thickness is also inhomogeneous, directly has influence on the quality and the yield rate of the shaping of barrier film.
Summary of the invention
Purpose of design of the present invention: avoid the weak point in the background technology, design a kind of macromolecule plasticizing plastics after can either guaranteeing to heat and to enter apace in the forming cavity of macromolecule plastic membrane mould, can guarantee the macromolecule plastic membrane pressurized injection molding method and the formation system of the macromolecule plastic membrane quality and the yield rate of formed thereby again.
Design: in order to realize above-mentioned purpose of design.The present invention is on the basis of background technology: (1) adopts pressue device the plasticizing plastics pressurization of molten condition to be injected in the mould of macromolecule plastic membrane is one of characteristics of the present invention.The purpose of doing like this is: through the plastics after the plasticizing of plasticizing machine, after being heated into the state of fusion, the plasticizing plastics of its molten condition quantitatively, are periodically forced the plasticizing plastics of molten condition to be injected into the quick injection mo(u)lding of pressurization in the mould of macromolecule plastic membrane under the effect of pressue device.Press the mould enter into macromolecule plastic membrane because molten plastic is a band, so it can guarantee the closely knit filling of high molecule plastic that the various piece of mold cavity is melted, guarantee the injection moulding quality.(2) the macromolecule plastic membrane mould is designed to have the device of self heating function, is two of characteristics of the present invention.The purpose of doing like this is: the one, because high molecule plastic is after by plastifying fusion, its viscosity and density are very big, can not be mobile as fluid, therefore the macromolecule plastic membrane mould is designed to have the mould of self heating function, the interior molten plastic of mould can be guaranteed to enter and when contacting, the cold junction skin can not be met with the face of mould, can not produce resistance, the state of temperature that on the contrary can secondary molten plastic be remained to its fusion, guarantee that molten plastic quantitatively enters in the mold cavity, guarantee that the shaping uniformity of macromolecule plastic membrane is relative with the standard of design consistent; The 2nd, because the cavity surface of macromolecule plastic membrane mould is heated condition, after the fusion high molecule plastic was in contact with it, cools off, the fineness on the macromolecule plastic membrane surface after it is shaped was very good.(3) design of a plurality of charging apertures on the macromolecule plastic membrane mould is three of features of the present invention.The purpose of doing like this is: owing to the area of the macromolecule plastic membrane that is used for filter plastic diaphragms filter plate is big, if adopt single throat-fed, certainly will cause runner in the mould distribute wide, runner is long, not only be difficult to molten plastic is delivered to the various piece of mould, and can't realize the making of super large breadth thin-walled barrier film.The application is provided with a plurality of charging apertures on mould, not only solved the widespread defective in multithread road, and can apace molten plastic be injected into the various piece of mould, has realized the making of super large breadth thin-walled barrier film.
Technical scheme: macromolecule plastic membrane pressurized injection molding method, the high molecule plastic raw material is after plasticizing, be heated into molten condition, it is characterized in that: the plasticizing plastics of molten condition enter by cylinder or hydraulic jack and extrude the discharging opening that tube constitutes pressue device and pressue device is 2 or a plurality of, the charging aperture of macromolecule plastic membrane mould is 2 or a plurality of and be complementary with the discharging opening of pressue device, because the macromolecule plastic membrane mould has oily heat cycles runner for being provided with in electric calorifie installation or the macromolecule plastic membrane mold wall in hot briquetting mould and macromolecule plastic membrane mold wall, therefore when pressurization is finalized the design in pressue device is injected into the macromolecule plasticizing plastics pressurization of molten condition the forming cavity of macromolecule plastic membrane mould, it can guarantee the closely knit filling of high molecule plastic that the various piece of mold cavity is melted, the interior molten plastic of mould can be guaranteed to enter and when contacting, the cold junction skin can not be met with the face of mould, can not produce resistance, the state of temperature that on the contrary can secondary molten plastic be remained to its fusion, guarantee that molten plastic quantitatively enters in the mold cavity, after the cooling, the fineness on the macromolecule plastic membrane surface after it is shaped is very good, can die sinking take out diaphragm after the cooling, guarantee the injection moulding quality.
The present invention compares with background technology, the one, the application adopts pressue device that the quick pressurization of the molten plastic of plasticizing is injected in the mould of macromolecule plastic membrane, the defective of having avoided background technology to exist realizes the making of super large breadth (as: more than 3000mm * 3000mm) high molecule plastic thin-walled barrier film; The 2nd, the design of macromolecule hot runner molding mould self-heating apparatus, not only solved the making of thin-walled plastic barrier film, solved the defective that production cycle is long, efficient is low, cost is high and fineness is low that background technology exists, and reduced production cost significantly, enhance productivity, stable and reliable product quality, the surface smoothness of institute's moulding are good; The 3rd, the design of pressurization extrusion device, macromolecule plastifying fusion plastics not only can be expressed to equably the various piece of diaphragm forming mold cavity, and really realized the rapid shaping of macromolecule plastic membrane injection moulding, solved that people want to solve for a long time and the difficult problem that do not have to solve.
Description of drawings:
Fig. 1 is the macromolecule plastic membrane pressurized injection molding system schematic.
Fig. 2 is the broken section structural representation of macromolecule plastic membrane mould.
The specific embodiment:
Embodiment 1: with reference to accompanying drawing 1.The macromolecule plastic membrane pressurized injection molding system, high molecule plastic plasticizing machine 1 is a prior art, does not chat art at this.The outlet of high molecule plastic plasticizing machine 1 is provided with valve 2 and is communicated with the import of pressue device 4, the outlet material of pressue device 4 is communicated with the import of macromolecule plastic membrane injection mold 7, pressue device is by cylinder or hydraulic jack 3 or screw extrusion machinery and extrude tube and 5 constitute, extruding tube 5 extrudes tube or extrudes tube from heated constant temperature for insulation, extrude the piston rod of the piston of tube in 5 and cylinder or hydraulic jack 3 or the screw rod in the screw extrusion machinery is connected and the discharging opening of the extrusion device that pressurizes is 2 or a plurality of, pressue device is provided with muff or is provided with the heated constant temperature control device.The macromolecule plastic membrane mould is from the hot briquetting mould, is provided with electric calorifie installation 9 in this plastic diaphragms mold wall, and electric heater unit 9 is a prior art, is not described herein at this.The import 6 of macromolecule plastic membrane injection mold is 2 or a plurality of and be complementary with the discharging opening of pressurization in the extrusion device.
Embodiment 2: on the basis of embodiment 1, have oily heat cycles runner 10 in the macromolecule plastic membrane mold wall, the heating of its oil adopts oily heat cycles boiler to get final product with circulation, or the electrical heating circulation.
Embodiment 3: on the basis of embodiment 1 or 2, have oily heat cycles runner 10 in the macromolecule plastic membrane mold wall and be built-in with electric heater unit 9.
Embodiment 4: on the basis of embodiment 1, macromolecule plastic membrane pressurized injection molding method, the high molecule plastic raw material is after plasticizing, be heated into molten condition, the plasticizing plastics of molten condition enter pressue device 4 and the pressurization of the macromolecule of molten condition plasticizing plastics are injected into pressurization typing in the forming cavity 8 of macromolecule plastic membrane mould 7 by pressue device 4, can die sinking take out diaphragm after the cooling.
What should be understood that is: though the foregoing description is to the present invention's detailed description of contrasting; but these embodiment are just illustrative to the present invention; rather than limitation of the present invention, any changes and improvements that do not exceed in the connotation scope of the present invention all fall into protection scope of the present invention.
Claims (1)
1. macromolecule plastic membrane pressurized injection molding method, the high molecule plastic raw material is after plasticizing, be heated into molten condition, it is characterized in that: the plasticizing plastics of molten condition enter by cylinder or hydraulic jack and extrude the discharging opening that tube constitutes pressue device and pressue device is 2 or a plurality of, the charging aperture of macromolecule plastic membrane mould is 2 or a plurality of and be complementary with the discharging opening of pressue device, because the macromolecule plastic membrane mould has oily heat cycles runner for being provided with in electric calorifie installation or the macromolecule plastic membrane mold wall in hot briquetting mould and macromolecule plastic membrane mold wall, therefore when pressurization is finalized the design in pressue device is injected into the macromolecule plasticizing plastics pressurization of molten condition the forming cavity of macromolecule plastic membrane mould, it can guarantee the closely knit filling of high molecule plastic that the various piece of mold cavity is melted, the interior molten plastic of mould can be guaranteed to enter and when contacting, the cold junction skin can not be met with the face of mould, can not produce resistance, the state of temperature that on the contrary can secondary molten plastic be remained to its fusion, guarantee that molten plastic quantitatively enters in the mold cavity, after the cooling, the fineness on the macromolecule plastic membrane surface after it is shaped is very good, can die sinking take out diaphragm after the cooling, guarantee the injection moulding quality.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100903713A CN101249713B (en) | 2007-04-09 | 2007-04-09 | Macromolecule plastic membrane pressurized injection molding method and molding system |
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| CN2007100903713A CN101249713B (en) | 2007-04-09 | 2007-04-09 | Macromolecule plastic membrane pressurized injection molding method and molding system |
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| CN101249713B true CN101249713B (en) | 2010-09-01 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905519A (en) * | 2010-07-20 | 2010-12-08 | 沁阳市双屿防腐设备有限公司 | Press filter plastic filter plate moulding process and device |
| CN102529046B (en) * | 2011-12-26 | 2015-08-05 | 兴源环境科技股份有限公司 | Macromolecule plastic membrane pressure process injection molding system and the method for forming |
| CN102529045B (en) * | 2012-01-12 | 2015-01-28 | 杭州兴源过滤科技股份有限公司 | Vacuum mixing injection molding system and method for membrane filter plate of filter press |
| CN102582023A (en) * | 2012-03-29 | 2012-07-18 | 武汉高智创新科技有限公司 | Large workpiece multi-sprue fully-automatic plastic injection machine |
| CN102672920B (en) * | 2012-04-27 | 2015-01-28 | 深圳大学 | Automatic extruding and compressing equipment for plastic product |
| CN103728831A (en) * | 2013-12-10 | 2014-04-16 | 华进半导体封装先导技术研发中心有限公司 | Method for forming Llight resistance wall molding method by adopting silicon mold |
| CN110539455A (en) * | 2019-09-30 | 2019-12-06 | 湖北安信塑料模具有限公司 | Supercharged solid wood-plastic die in large cross section |
| CN117532826A (en) * | 2023-12-12 | 2024-02-09 | 潍坊市华玉塑料机械有限公司 | Large-scale full-automatic plastic forming machine |
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Effective date of registration: 20230414 Address after: 311100 No. 1588, Wangmei Road, Hangzhou Linping Economic and Technological Development Zone, Linping District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU XINGYUAN ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. Address before: 311100 No. 1588, Wang Mei Road, Hangzhou Yuhang economic and Technological Development Zone, Yuhang District, Hangzhou, Zhejiang Patentee before: XINGYUAN ENVIRONMENT TECHNOLOGY CO.,LTD. |