CN204977379U - A double screw extruder for EVAPE crosslinked foaming material processing - Google Patents
A double screw extruder for EVAPE crosslinked foaming material processing Download PDFInfo
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- CN204977379U CN204977379U CN201520697998.5U CN201520697998U CN204977379U CN 204977379 U CN204977379 U CN 204977379U CN 201520697998 U CN201520697998 U CN 201520697998U CN 204977379 U CN204977379 U CN 204977379U
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Abstract
The utility model relates to a double screw extruder for EVAPE crosslinked foaming material processing, by transmission, main feeding device, extrude the chamber, heating cooling system and control system constitute, the one end of extruding the chamber is the feed inlet and install main feeding device, parallel syntropy twin -screw is installed to the intracavity of extruding, and the twin -screw is divided into nine sections to in the installation of corresponding stage corresponding transport section, mixing section and the section of mediating, carrying section, mixing section and the section of mediating through the appropriate allocation, forming the binary screw extruder who accords with EVA foaming crosslinked production technology, it sets up the autonomic feeding device in extruding the chamber to deuterogamy, realizes that the online automatic feed, pay -off, individual component compounding accomplished in succession is even, and the EVA foamed sheet tensile strength that produces is good, the elongation is good, and the abscess structure is fine and closely woven even, and continuous production's properties of product between a plurality of batchs and color and luster are stably, binary screw extruder's easy operation, production efficiency are high, can effective control industrial production labor cost.
Description
Technical field
The utility model relates to the production equipment field of EVA, PE or both blended chemical crosslinking foamed material processing, in particular for the double screw extruder of EVA/PE crosslinked foaming materiel machining.
Background technology
EVA is the random copolymer of ethene and vinyl acetate.EVA resin has good flexibility, pliability, anti-aging and resistance to ozone intensity are good, and therefore purposes widely, obtains and develop fast.The method that EVA complex produces includes physical blowing method and chemical blowing process.Chinese patent (publication number CN1982363A, publication date 2007.06.20) disclose a kind of preparation method of shock-absorbing EVA foaming sectional material, comprising: mixing, mixing mixing, open refining mix again and carry out bundle thin, make sheet material or particle, carry out moulded from foam or injection compression foaming, part foaming plate grinding and cutting, carry out second time of foaming.There is following defect in especially foam process segment in early stage of above-mentioned production technology: (1), each operation all will be carried out at relevant device, complex manufacturing and loaded down with trivial details, waste a large amount of manpower; (2), mixing roll requires high for the operative skill of operator and qualification; (3) mixing roll belongs to batch production equipment, must carry out mixing etc. in batches; Above-mentioned defect makes the production efficiency of foamed profile low little and be difficult to obtain the EVA foamed profile of stable performance; Also can increase labor cost needed for producing simultaneously and take production area large.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, the double screw extruder for EV/PEA crosslinked foaming materiel machining providing a kind of automation, be conducive to the serialization of EVA/PE crosslinked foaming materiel machining, ensure that foaming quality is stablized well, enhance productivity.
For achieving the above object, technical solution of the present utility model is: for the double screw extruder of EVA/PE crosslinked foaming materiel machining, forms primarily of transmission device, main drawing-in device, extruding cavity, heating and cooling system and control system; One end of extruding cavity is charging aperture and is provided with main drawing-in device; In institute's extruding cavity, parallel equidirectional two-screw is installed, described extruding cavity is divided into nine joints, be respectively first segment extruding cavity, second squeeze save out chamber, Section three extruding cavity, the saves four extruding cavities, Section of five extruding cavity, Section of six extruding cavity, Section of seven extruding cavity, Section of eight extruding cavity and die orifice section; The position of the corresponding first segment extruding cavity of described twin-screw is the first transportation section; The position of the corresponding second section extruding cavity of described twin-screw is the first mixing section; The position of corresponding Section of three extruding cavity of described twin-screw is the first kneading block; The position of corresponding Section of four extruding cavity of described twin-screw is the second mixing section; The position of corresponding Section of five extruding cavity of described twin-screw is the second kneading block; The position of corresponding Section of six extruding cavity of described twin-screw is the second transportation section; The position of corresponding Section of seven extruding cavity of described twin-screw is followed successively by the 3rd mixing section and the 3rd kneading block; The position of corresponding Section of eight extruding cavity of described twin-screw is followed successively by the 4th kneading block, the 4th mixing section and the 5th kneading block.
Preferably, described first kneading block, the second kneading block, the 3rd kneading block, the 4th kneading block are all mediate module composition by several, and described first kneading block is provided with the kneading module that stagger arrangement angle is 30 °, 45 °, 60 °, 90 °; Described second kneading block is provided with the kneading module that stagger arrangement angle is 45 °, 60 °, 90 °; To be all stagger arrangement angle the be kneading module of 45 ° that described 3rd kneading block and the 4th kneading block are installed.
Preferably, the draw ratio of described twin-screw is 46:1-48:1.
Preferably, be positioned at described Section of three extruding cavity to the position of Section of six extruding cavity and be provided with side drawing-in device.
Preferably, described side drawing-in device is installed on Section of six extruding cavity.
Preferably, described main drawing-in device and side drawing-in device are all weightless title.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model is by reasonable disposition transportation section, mixing section and kneading block, form the dual-screw-stem machine of the production technology meeting the crosslinked materiel machining of EVA foaming, be equipped with the autonomous drawing-in device in extruding cavity again, realize on-line automatic complete continuously feeding, feeding, individual component batch mixing evenly, batch mixing plasticizing, the EVA foaming plate hot strength produced is good, percentage elongation is good, foam structure is evenly fine and closely woven, and between quantity-produced multiple batches properties of product and color stability good; Taking up room of dual-screw-stem machine is little, simple to operate, production efficiency is high, can effectively control industrial production labor cost, can also reduce energy consumption and pollution simultaneously, ensures the cleaning of workshop.This structure also can be used for PE(polyethylene) or the processing of PE and EVA blended cross linking foamed material.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of twin-screw;
Main Reference Numerals illustrates:
(1, control system; 2, transmission device; 3, main drawing-in device; 4, side drawing-in device; 5, extruding cavity; 51, first segment extruding cavity; 52, second section extruding cavity; 53, Section of three extruding cavity; 54, Section of four extruding cavity; 55, Section of five extruding cavity; 56, Section of six extruding cavity; 57, Section of seven extruding cavity; 58, Section of eight extruding cavity; 59, modular segment; 61, the first transportation section; 62, the second transportation section; 71, the first mixing section; 72, the second mixing section; 73, the 3rd mixing section; 74 the 4th mixing sections; 81, the first kneading block; 82, the second kneading block; 83, the 3rd kneading block; 84 the 4th kneading blocks; 85 the 5th kneading blocks).
Detailed description of the invention
The utility model is further illustrated below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, dual-screw-stem machine forms primarily of transmission device 2, extruding cavity 5, heating and cooling system (not shown) and control system 1.Heating and cooling system is provided on extruding cavity 5 outer wall, employing be the temperature that the mode of electrical heating and water-cooled quick and precisely regulates in extruding cavity 5.The motor that transmission device 2 adopts and reduction box composition, for driving the twin-screw in extruding cavity to rotate, above main composition is all the prior art adopting double screw extruder, also in extruding cavity 5, also arranges extract system according to prior art simultaneously.This structure is provided with main drawing-in device 3 at the initiating terminal of extruding cavity, and middle part is provided with side drawing-in device 4.Described main drawing-in device 3 and side drawing-in device 4 adopt weightless title, are a kind of weighing-appliances being interrupted feed continuous discharge, and control to be carry out in hopper due to vector, can reach higher control accuracy dosing, structure is easy to again sealing.Transmission device 2, main drawing-in device 3, side drawing-in device 4, heating and cooling system are all connected with control system 1, and unified have the duty controlling each device.
As shown in Figure 2, extruding cavity of the present utility model is divided into nine joints altogether, is divided into first segment extruding cavity 51, second section extruding cavity 52, Section of three extruding cavity 53, Section of four extruding cavity 54, Section of five extruding cavity 55, Section of six extruding cavity 56, Section of seven extruding cavity 57, Section of eight extruding cavity 58, modular segment 59 successively at initiating terminal.The draw ratio of twin-screw is 46:1-48:1, specifically can be set to 46:1,47:1,48:1.Twin-screw comprises the first mixing section 71, first kneading block 81, second mixing section 72, second kneading block 82, second transportation section 62, transportation section 61, first, the 3rd mixing section 73, the 3rd kneading block 83, the 4th kneading block 84, the 4th mixing section 74, the 5th kneading block 85 successively.First transportation section 61 is in first segment extruding cavity 51, first mixing section 71 is in second section extruding cavity 52, first kneading block 81 is in Section of three extruding cavity 53, second mixing section 72 is in Section of four extruding cavity 54, second kneading block 82 is in Section of five extruding cavity 55, second transportation section 62 is in Section of six extruding cavity 56,3rd mixing section 73 and the 3rd kneading block 83 are in Section of seven extruding cavity 57, and the 4th kneading block 84, the 4th mixing section 74 and the 5th kneading block 85 are in Section of eight extruding cavity 58.First transportation section 61 and the second transportation section 61 are specially installs conveying screw thread module on the driving shaft of twin-screw, includes the conveying screw thread module of helical pitch 48mm, the conveying screw thread module of length 48mm and helical pitch 32mm, length 32mm.First mixing section 71, second mixing section 72, the 3rd mixing section 73, the 4th mixing 74 install mixing rotor module on the driving shaft of twin-screw, is specially the mixing rotor module of helical pitch 22mm, length 22mm.Five kneading blocks (81/82/83/84/85) then mediate module by installing on the driving shaft of twin-screw, mediate Parametric Representation method herein and adopt " stagger arrangement angle/kneading disk quantity/block length "; First kneading block is combined as 30 °/7/48, and 45 °/5/32,60 °/4/22,90 °/5/32; Second kneading block is combined as 45 °/5/32, and 45 °/5/32,60 °/4/22,60 °/4/22; 3rd kneading block is combined as 45 °/5/32; 4th kneading block is combined as 45 °/5/32; 5th kneading block is combined as 45 °/5/32.Decompose in advance for avoiding blowing agent and crosslinking agent, in this structure, the processing aids such as blowing agent, crosslinking agent, dispersant, blowing promotor are placed in side drawing-in device 4, and the arbitrary joint extruding cavity of Section of three extruding cavity 53 to Section of six extruding cavity 56 in side drawing-in device 4, can be installed on, preferably side drawing-in device 4 is arranged on Section of six extruding cavity 56.Carry screw thread module, kneading module and mixing rotor to be fixedly installed in driving shaft by spline in this structure, modular segment 59 extrusion neck ring mold is designed to circle or ellipse as required.
experiment 1
Get the raw materials ready: EVA200kg, regeneration LDPE800kg, EVA/PE foam recovery material 300kg, colorant black masterbatch 60kg, calcium carbonate 300kg are dropped in main drawing-in device 3, Foam agent ADC 50kg, crosslink agent DCP 60kg, dispersant St20kg, blowing promotor zinc oxide 50kg are dropped into side drawing-in device 4.
1 dual-screw-stem machine technological parameter tested by table 1
| Motor speed | First segment | Second section | Section three, | Section four, | Section five, | Section six, | Section seven, | Section eight, | Die orifice |
| 200 turns/min | 140℃ | 140℃ | 130℃ | 125℃ | 120℃ | 115℃ | 100℃ | 95℃ | 0℃ |
In this experiment, the draw ratio of twin-screw is 46:1, and side drawing-in device 4 is installed on Section of six extruding cavity 56.By the duty of control system 1 according to the corresponding transmission device 2 of process parameter control shown in table 1, heating and cooling system, and set main drawing-in device 3 and side drawing-in device 4 timing, quantitatively feeding according to twin-screw extrusion yield in unit time.Through experiment 1 materiel machining, more successively through the EVA/PE foaming plate hot strength 0.81-0.86Mpa that rolling out film and vulcanizing press sulfuration are produced, percentage elongation 171-175%, density 1.31-1.35kg/cm
3, outward appearance foam structure is fine and closely woven evenly, one batch of basically identical no color differnece of color.Same recipe, the product produced by traditional handicraft, the test result often between material has fluctuation, and hot strength is 0.6-0.9Mpa, percentage elongation 162-179%, density 1.29-1.38kg/cm
3, it is fine and closely woven that outward appearance foam structure has, and some summaries are thick, and fine and closely woven is of light color, and the color that abscess is slightly thick is dark.
experiment 2
Batching: regeneration LDPE100kg, EVA/PE foam recovery material 30kg, colorant 2kg, calcium carbonate 30kg drop in main drawing-in device 3, and Foam agent ADC 5kg, crosslink agent DCP 0.8kg, dispersant St1kg, blowing promotor zinc oxide 2kg are dropped into side drawing-in device 4.
2 dual-screw-stem machine technological parameters tested by table 2
| Motor speed | First segment | Second section | Section three, | Section four, | Section five, | Section six, | Section seven, | Section eight, | Die orifice |
| 200 turns/min | 150℃ | 150℃ | 150℃ | 140℃ | 130℃ | 125℃ | 120℃ | 120℃ | 0℃ |
In this experiment, the draw ratio of twin-screw is 48:1, and side drawing-in device 4 is installed on Section of five extruding cavity 55.By the duty of control system 1 according to the corresponding transmission device 2 of process parameter control shown in table 2, heating and cooling system, and set main drawing-in device 3 and side drawing-in device 4 timing, quantitatively feeding according to twin-screw extrusion yield in unit time.Through testing 2 materiel machinings, more successively through the EVA/PE foaming plate hot strength 1.7Mpa that rolling out film and vulcanizing press sulfuration are produced, percentage elongation 152%, density 1.31kg/cm3, outward appearance foam structure is evenly fine and closely woven.
Above-described, be only preferred embodiment of the present utility model, the scope that the utility model is implemented can not be limited, every equalization change of doing according to the utility model claim and decoration, all should still belong in scope that the utility model contains.
Claims (6)
1., for the double screw extruder of EVA/PE crosslinked foaming materiel machining, form primarily of transmission device, main drawing-in device, extruding cavity, heating and cooling system and control system; One end of extruding cavity is charging aperture and is provided with main drawing-in device; In institute's extruding cavity, parallel equidirectional two-screw is installed, it is characterized in that: described extruding cavity is divided into nine joints, be respectively first segment extruding cavity, second squeeze save out chamber, Section three extruding cavity, the saves four extruding cavities, Section of five extruding cavity, Section of six extruding cavity, Section of seven extruding cavity, Section of eight extruding cavity and die orifice section; The position of the corresponding first segment extruding cavity of described twin-screw is the first transportation section; The position of the corresponding second section extruding cavity of described twin-screw is the first mixing section; The position of corresponding Section of three extruding cavity of described twin-screw is the first kneading block; The position of corresponding Section of four extruding cavity of described twin-screw is the second mixing section; The position of corresponding Section of five extruding cavity of described twin-screw is the second kneading block; The position of corresponding Section of six extruding cavity of described twin-screw is the second transportation section; The position of corresponding Section of seven extruding cavity of described twin-screw is followed successively by the 3rd mixing section and the 3rd kneading block; The position of corresponding Section of eight extruding cavity of described twin-screw is followed successively by the 4th kneading block, the 4th mixing section and the 5th kneading block.
2. according to claim 1 for the double screw extruder of EVA/PE crosslinked foaming materiel machining, it is characterized in that: described first kneading block, the second kneading block, the 3rd kneading block, the 4th kneading block are all mediate module composition by several, and described first kneading block is provided with the kneading module that stagger arrangement angle is 30 °, 45 °, 60 °, 90 °; Described second kneading block is provided with the kneading module that stagger arrangement angle is 45 °, 60 °, 90 °; To be all stagger arrangement angle the be kneading module of 45 ° that described 3rd kneading block and the 4th kneading block are installed.
3. according to claim 1 for the double screw extruder of EVA/PE crosslinked foaming materiel machining, it is characterized in that: the draw ratio of described twin-screw is 46:1-48:1.
4. according to claim 1 for the double screw extruder of EVA/PE crosslinked foaming materiel machining, it is characterized in that: be positioned at described Section of three extruding cavity to the position of Section of six extruding cavity and be provided with side drawing-in device.
5. according to claim 4 for the double screw extruder of EVA/PE crosslinked foaming materiel machining, it is characterized in that: described side drawing-in device is installed on Section of six extruding cavity.
6. according to claim 1,4 or 5 for the double screw extruder of EVA/PE crosslinked foaming materiel machining, it is characterized in that: described main drawing-in device and side drawing-in device are all weightless title.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520697998.5U CN204977379U (en) | 2015-09-10 | 2015-09-10 | A double screw extruder for EVAPE crosslinked foaming material processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520697998.5U CN204977379U (en) | 2015-09-10 | 2015-09-10 | A double screw extruder for EVAPE crosslinked foaming material processing |
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| Publication Number | Publication Date |
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| CN204977379U true CN204977379U (en) | 2016-01-20 |
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| CN201520697998.5U Expired - Fee Related CN204977379U (en) | 2015-09-10 | 2015-09-10 | A double screw extruder for EVAPE crosslinked foaming material processing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128311A (en) * | 2015-09-10 | 2015-12-09 | 泉州市昶鸿化工贸易有限公司 | Twin-screw extruder for processing crosslinked foam EVA/PE material |
| CN109291404A (en) * | 2018-09-07 | 2019-02-01 | 青岛国恩科技股份有限公司 | For nylon and the combination of the twin-screw of glass fibre extrusion processing and its processing method |
| CN112425812A (en) * | 2020-10-30 | 2021-03-02 | 马社会 | Plant protein meat double-screw extruder |
-
2015
- 2015-09-10 CN CN201520697998.5U patent/CN204977379U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105128311A (en) * | 2015-09-10 | 2015-12-09 | 泉州市昶鸿化工贸易有限公司 | Twin-screw extruder for processing crosslinked foam EVA/PE material |
| CN105128311B (en) * | 2015-09-10 | 2018-04-24 | 泉州市昶鸿化工贸易有限公司 | Double screw extruder for EVA/PE crosslinked foaming materiel machinings |
| CN109291404A (en) * | 2018-09-07 | 2019-02-01 | 青岛国恩科技股份有限公司 | For nylon and the combination of the twin-screw of glass fibre extrusion processing and its processing method |
| CN112425812A (en) * | 2020-10-30 | 2021-03-02 | 马社会 | Plant protein meat double-screw extruder |
| CN112425812B (en) * | 2020-10-30 | 2022-04-22 | 马社会 | Plant protein meat double-screw extruder |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180910 |
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| CF01 | Termination of patent right due to non-payment of annual fee |