CN205148865U - A double screw extruder for production of polyethylene foam sheet - Google Patents
A double screw extruder for production of polyethylene foam sheet Download PDFInfo
- Publication number
- CN205148865U CN205148865U CN201520983410.2U CN201520983410U CN205148865U CN 205148865 U CN205148865 U CN 205148865U CN 201520983410 U CN201520983410 U CN 201520983410U CN 205148865 U CN205148865 U CN 205148865U
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- China
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- machine barrel
- foam sheet
- screw rod
- screw extruder
- polyethylene foam
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
The utility model relates to a double screw extruder, concretely relates to a double screw extruder for production of polyethylene foam sheet, including installation base, barrel, go up the pivot, go up the screw rod, pivot down, screw rod, die head and drive arrangement down. The utility model discloses advantages such as the extruder has that structural design is equitable, convenient to use and work efficiency height, the heat preservation can guarantee solid state material liquefied efficiency, improved work efficiency.
Description
Technical field
The utility model relates to a kind of double screw extruder, is specifically related to a kind of double screw extruder produced for polyethylene foam sheet.
Background technology
Extruder is widely used in the machine-shaping of the materials such as macromolecule, equipment important in macromolecular material production process, generally be made up of extrusion system, transmission system and heating system, its operation principle is that macromolecular material is plastified uniformly melt by extrusion system, is extruded continuously by the screw rod rotated from head.Existing and extruder is carrying out in the production of polyethylene foam sheet, blowing agent is added in double screw extruder together with other auxiliary material such as polyethylene, cause foaming effect obviously bad, affect the quality of product, simultaneously, extruder is unfavorable for the generation of bubble in work, greatly reduces the quality of macromolecule product.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, provides the double screw extruder that a kind of structure is simple, efficiency is high, the measured polyethylene foam sheet of extruded product matter is produced.
To achieve these goals, the technical solution adopted in the utility model is:
For the double screw extruder that polyethylene foam sheet is produced, comprise mounting seat, machine barrel, upper rotating shaft, upper screw rod, lower rotary shaft, lower screw rod, die head and drive unit; Described machine barrel is arranged in mounting seat, and one end of this machine barrel is provided with charging aperture, and the other end of this machine barrel is provided with discharging opening, this discharging opening is provided with and gets to know; Described upper screw rod and lower screw rod are arranged in machine barrel respectively by upper rotating shaft and lower rotary shaft, described upper rotating shaft and lower rotary shaft extend machine barrel near one end of charging aperture, describedly extend uploading axle and pass on axle down and being separately installed with driven gear and driving gear of machine barrel, this driving gear and driven gear are connected with a joggle by idler gear, and this idler gear is arranged on machine barrel by fixed axis; The described axle that passes down is driven by drive unit; The outer wall of described machine barrel is laid with heater; The upper end of described machine barrel is also provided with blowing agent injection port, and this blowing agent injection port is communicated with the hopper above it by pipeline, and is provided with injection pump on this pipeline.
Further, the flight pitch on described upper screw rod and lower screw rod increases near charging aperture one end gradually to the other end.
Further, the barrel wall outside described heater is provided with one layer of heat preservation layer.
Further, described machine barrel is provided with temperature sensor, and the inside that described temperature sensor stretches into machine barrel is installed.
Further, described charging aperture is provided with multiple, and is connected with feed pipe respectively, and this feed pipe is provided with heater.
Further, described heater is heating wire or electric heating piece, and this heater is controlled by heating controller and heats.
Further, described drive unit comprises motor, decelerator and shaft coupling, this motor and decelerator connection for transmission, and decelerator is by shaft coupling and pass axle connection for transmission down.
The beneficial effects of the utility model are:
The utility model is provided with blowing agent injection port in the upper end of machine barrel, and forces to inject machine barrel by injection pump, thus improves foaming effect; Screw flight spacing increases from charging aperture gradually to discharging opening, screw rod fully mixes near entrance point for making different supplementary materials and transmits, flight pitch increases gradually makes its space of foaming increase, to reach good foaming effect, mixing of materials can be made simultaneously and extrude to complete within one device, reduce equipment cost; Feed pipe of the present utility model is provided with heater, first carries out preheating, make it more easily mix before making material enter extruder.The utility model extruder has reasonable in design, easy to use and operating efficiency advantages of higher, and described heat-insulation layer can ensure the efficiency that solid material liquefies to improve operating efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, mounting seat, 2, machine barrel, 3, feed pipe, 4, upper rotating shaft, 5, upper screw rod, 6, lower rotary shaft, 7, lower screw rod, 8, die head, 9, heater, 10, driven gear, 11, driving gear, 12, idler gear, 13, mounting bracket, 14, hopper, 15, injection pump, 16, temperature sensor, 17, heat-insulation layer, 18, motor, 19, decelerator, 20, shaft coupling.
Detailed description of the invention
As shown in the figure, the utility model comprises mounting seat 1, machine barrel 2, upper rotating shaft 4, upper screw rod 5, lower rotary shaft 6, lower screw rod 7, die head 8 and drive unit.
Described machine barrel 2 is fixedly mounted in mounting seat 1, and one end of this machine barrel 2 is provided with charging aperture, and the other end of this machine barrel is provided with discharging opening, this discharging opening is provided with and gets to know 8; Described charging aperture is provided with multiple, and is connected with feed pipe respectively, and each feed pipe 3 is equipped with heater 9.
The two ends of described upper screw rod 5 are arranged in machine barrel 2 by upper rotating shaft 4, and the two ends of lower screw rod 7 are arranged in machine barrel 2 by lower rotary shaft 6, and upper screw rod and the upper and lower symmetry of lower screw rod are arranged in machine barrel; The described upper rotating shaft near charging aperture one end and lower rotary shaft extend machine barrel, this extends uploading axle and passing on axle down and being installed with driven gear 10 and driving gear 11 respectively of machine barrel, this driving gear and driven gear are connected with a joggle by idler gear 12, and this idler gear is arranged on machine barrel by fixed axis; The described axle that passes down is driven by drive unit; Uploading axle and passing down axle of described close discharging opening one end is installed on mounting bracket 13, is fixedly mounted in machine barrel between this installation.
The upper end, middle part of described machine barrel 2 is also provided with blowing agent injection port, and this blowing agent injection port is communicated with the hopper 14 above it by pipeline, and is provided with injection pump 15 on this pipeline.
The outer wall of described machine barrel is laid with heater 9.Above-mentioned heater is heating wire or electric heating piece, and above-mentioned heater is all controlled by heating controller and heats; Meanwhile, machine barrel is provided with temperature sensor 16, the inside that described temperature sensor 16 stretches into machine barrel is installed.This temperature sensor is connected with described heating controller, thus makes heating-up temperature automatic constant remain in certain temperature range, improves the quality of product.In order to ensure the constant of temperature further and reduce production cost, the barrel wall outside heater is provided with one layer of heat preservation layer 17.
In order to enhance productivity further and the quality of product, the flight pitch on upper screw rod of the present utility model and lower screw rod increases near charging aperture one end gradually to the port of export.Screw rod fully mixes near entrance point for making different supplementary materials and transmits, and flight pitch increases gradually makes its space of foaming increase, to reach good foaming effect.
Drive unit described in the utility model comprises motor 18, decelerator 19 and shaft coupling 20, and this motor 18 and decelerator 19 connection for transmission, decelerator is by shaft coupling 20 and pass axle connection for transmission down.
Claims (7)
1., for the double screw extruder that polyethylene foam sheet is produced, it is characterized in that: comprise mounting seat, machine barrel, upper rotating shaft, upper screw rod, lower rotary shaft, lower screw rod, die head and drive unit; Described machine barrel is arranged in mounting seat, and one end of this machine barrel is provided with charging aperture, and the other end of this machine barrel is provided with discharging opening, this discharging opening is provided with and gets to know; Described upper screw rod and lower screw rod are arranged in machine barrel respectively by upper rotating shaft and lower rotary shaft, described upper rotating shaft and lower rotary shaft extend machine barrel near one end of charging aperture, describedly extend uploading axle and pass on axle down and being separately installed with driven gear and driving gear of machine barrel, this driving gear and driven gear are connected with a joggle by idler gear, and this idler gear is arranged on machine barrel by fixed axis; The described axle that passes down is driven by drive unit; The outer wall of described machine barrel is laid with heater; The upper end of described machine barrel is also provided with blowing agent injection port, and this blowing agent injection port is communicated with the hopper above it by pipeline, and is provided with injection pump on this pipeline.
2. a kind of double screw extruder produced for polyethylene foam sheet according to claim 1, is characterized in that: the flight pitch on described upper screw rod and lower screw rod increases near charging aperture one end gradually to the other end.
3. a kind of double screw extruder produced for polyethylene foam sheet according to claim 1, is characterized in that: the barrel wall outside described heater is provided with one layer of heat preservation layer.
4. a kind of double screw extruder produced for polyethylene foam sheet according to claim 1, is characterized in that: described machine barrel is provided with temperature sensor, and the inside that described temperature sensor stretches into machine barrel is installed.
5. a kind of double screw extruder produced for polyethylene foam sheet according to claim 1, it is characterized in that: described charging aperture is provided with multiple, and is connected with feed pipe respectively, this feed pipe is provided with heater.
6. according to claim 1 or 5 a kind of for polyethylene foam sheet produce double screw extruder, it is characterized in that: described heater is heating wire or electric heating piece, this heater is controlled by heating controller and heats.
7. a kind of double screw extruder produced for polyethylene foam sheet according to claim 1, it is characterized in that: described drive unit comprises motor, decelerator and shaft coupling, this motor and decelerator connection for transmission, decelerator is by shaft coupling and pass axle connection for transmission down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520983410.2U CN205148865U (en) | 2015-11-30 | 2015-11-30 | A double screw extruder for production of polyethylene foam sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520983410.2U CN205148865U (en) | 2015-11-30 | 2015-11-30 | A double screw extruder for production of polyethylene foam sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205148865U true CN205148865U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520983410.2U Active CN205148865U (en) | 2015-11-30 | 2015-11-30 | A double screw extruder for production of polyethylene foam sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205148865U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927267A (en) * | 2019-04-02 | 2019-06-25 | 佛山市高明爱博广告装饰材料有限公司 | A kind of EPS sheet production system |
| CN111921616A (en) * | 2020-07-23 | 2020-11-13 | 江苏恒峰线缆有限公司 | High-performance LDPE (Low-Density polyethylene) film material |
| CN112721290A (en) * | 2020-12-14 | 2021-04-30 | 常州信息职业技术学院 | Double-screw extruder with adjustable structure |
-
2015
- 2015-11-30 CN CN201520983410.2U patent/CN205148865U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927267A (en) * | 2019-04-02 | 2019-06-25 | 佛山市高明爱博广告装饰材料有限公司 | A kind of EPS sheet production system |
| CN109927267B (en) * | 2019-04-02 | 2024-06-04 | 佛山市高明爱博广告装饰材料有限公司 | EPS sheet production system |
| CN111921616A (en) * | 2020-07-23 | 2020-11-13 | 江苏恒峰线缆有限公司 | High-performance LDPE (Low-Density polyethylene) film material |
| CN112721290A (en) * | 2020-12-14 | 2021-04-30 | 常州信息职业技术学院 | Double-screw extruder with adjustable structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A double screw extruder for production of polyethylene foam sheet Effective date of registration: 20180518 Granted publication date: 20160413 Pledgee: China Postal Savings Bank Limited by Share Ltd Huizhou branch Pledgor: HUIZHOU HUANMEISHENG NEW MATERIAL CO., LTD. Registration number: 2018440000124 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |