CN204566642U - A kind of double screw extruder - Google Patents
A kind of double screw extruder Download PDFInfo
- Publication number
- CN204566642U CN204566642U CN201520027376.1U CN201520027376U CN204566642U CN 204566642 U CN204566642 U CN 204566642U CN 201520027376 U CN201520027376 U CN 201520027376U CN 204566642 U CN204566642 U CN 204566642U
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- CN
- China
- Prior art keywords
- screw extruder
- machine barrel
- feed hopper
- double screw
- mair motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to plastics machinery and manufactures field, be specifically related to a kind of double screw extruder, comprise feed hopper, mair motor and machine barrel, feed hopper and mair motor are positioned at machine barrel feed end, feed hopper is positioned at above mair motor, arrange long bolt in machine barrel to be connected with the driving gear in reduction box and driven gear respectively with short screw, also idler gear is provided with in the below of two gears, thus make long, short two screw rods operationally keeps equidirectional rotation, the helix also equidirectional rotation of twin-screw, namely the double dominant that double screw extruder plasticizing capacity is good and single screw extrusion machine extrusion pressure is large has been merged, reasonable in design, the scope of application is wider.
Description
Technical field
The utility model relates to plastics machinery and manufactures field, is specifically related to a kind of double screw extruder.
Background technology
Conventional extruder according to screw rod quantity number can be divided into single screw extrusion machine, double screw extruder and multi-screw extruder, at present, it is more that single screw extrusion machine and double screw extruder commercially use.In order to make double screw extruder have good plasticizing capacity, those of skill in the art are used to consider needs the screw rod of two in double screw extruder to arrange isometric.
Such as publication number is that the Chinese invention patent of 1775505A discloses a kind of conical parallel dual-screw extruding machine, it is by drive motors (1), shaft coupling (2), deceleration distributor box (3), feed system (4), machine barrel (5), conical double-screw (6), gas extraction system (7), pelletizing system (8), hopper (9) etc. formed, main conical screw (6-1) and the secondary conical screw (6-2) of two equidirectional rotations is provided with in machine barrel (5), the existing power of extruding well of the present invention is made to have again good soffening, extruding and granulation in applicable plastic processing, improve output, reduce energy consumption, it is a kind of novel extruder being applicable to various plastics and rubber processing, but its pressure transient, and single screw extrusion machine has the stable advantage of extrusion pressure, but its plasticizing capacity is bad.
Utility model content
The purpose of this utility model solves the problems of the technologies described above, and provides the double screw extruder that a kind of two screw rods are different in size, the advantage of single screw extrusion machine and double screw extruder combined, not only pressure stability and also plasticizing capacity good.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs:
A kind of double screw extruder, comprise feed hopper, mair motor and machine barrel, described feed hopper and mair motor are positioned at described machine barrel feed end, described feed hopper is positioned at above mair motor, arrange two screw rods in described machine barrel, described screw rod drives by described mair motor, and described machine barrel is provided with preheating zone, gradient-heated district and outlet successively from feed end, described screw rod comprises long bolt and short screw, and described long bolt and short screw direction of rotation are equidirectional and cooperatively interact.
As preferably, described mair motor is connected by reduction box with screw rod; Described long bolt is connected with the driving gear in described reduction box, and described short screw is connected with driven gear; Also idler gear is provided with between described driving gear and driven gear.
The equidirectional rotation of above-described twin-screw is that three gears by arranging in reduction box have come; Driving gear connects long bolt and is meshed with idler gear, and idler gear is meshed with driven gear again, and driven gear connects short screw, thus makes long and short screw rod reach rotating Vortex.
As preferably, described gradient-heated divides into intensification section, soaking zone and fluxing zone.
As preferably, described gradient-heated district is provided with nine heating regions altogether, and described intensification section, soaking zone and fluxing zone respectively have three heating regions, are provided with temperature-controlled cabinet outside described machine barrel.
As preferably, described feed hopper upper end is provided with the first suction port, and described outlet upper end is provided with the second suction port, and the first described suction port is connected with dust exhaust apparatus by dust collection pipeline with the second suction port.
Described dust arrester can be the one in cyclone dust collectors, sack cleaner, water dust scrubber, and electrostatic precipitator cost is too high, is applicable to the application of extensive dedusting.The porch of dust arrester is provided with blower fan, for providing air-breathing power.When needs On/Off cover and moisture exhausting port, also manipulated by the button on switch board.
As preferably, described outlet is provided with moisture exhausting port.
Small molecular volatile substance entrained in material and moisture are very easily for product brings defect, and pre-treatment cannot remove them completely, therefore on outlet, arranges moisture exhausting port, facilitate it to discharge, prevent from affecting product quality, adopt suction port to be siphoned away, prevent its infringement operating environment.
As preferably, described feed hopper inside is provided with impeller, and described impeller is connected with stand-by motor.
The rotation of impeller can prevent from material from piling up at the connecting portion of feed hopper and machine barrel putting up a bridge.
As preferably, between described feed hopper and machine barrel, be provided with material propulsion plant.
As preferably, described material propulsion plant comprises piston-type hydraulic cylinder, hydraulic pump and hydraulic oil container.
When the coefficient of viscosity of material is larger, material propulsion plant need be adopted at set intervals to be pushed machine barrel, and the hydraulic system implementation capacity of plunger formula hydraulic cylinder is good, pushes precision high, has been applicable to this type of work.
In sum, the utility model has following beneficial effect:
1, long bolt of the present utility model is connected with driving gear, short screw is connected with driven gear, also idler gear is provided with in the below of two gears, thus making twin-screw operationally keep equidirectional rotation, the helix of twin-screw also equidirectional rotation effectively improves plasticizing capacity of the present utility model.
2, the advantage of single screw extrusion machine and the advantage of double screw extruder unite two into one by the utility model, have namely merged the double dominant that double screw extruder plasticizing capacity is good and single screw extrusion machine extrusion pressure is large, and reasonable in design, the scope of application is wider.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of long bolt of the present utility model and short screw;
In figure, 1, feed hopper; 2, mair motor; 3, machine barrel; 31, long bolt; 32, short screw; 4, the first suction port; 5, preheating zone; 6, gradient-heated district; 7, outlet; 8, the second suction port; 9, temperature-controlled cabinet; 10, reduction box; 11, stand-by motor; 12, material propulsion plant; 13, piston-type hydraulic cylinder.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of double screw extruder, comprises feed hopper 1, mair motor 2 and machine barrel 3, and feed hopper 1 is other is provided with horse block.Feed hopper 1 and mair motor 2 are positioned at machine barrel 3 feed end, are provided with material propulsion plant 12 between feed hopper 1 and machine barrel 3, and material propulsion plant 12 comprises piston-type hydraulic cylinder 13, hydraulic pump and hydraulic oil container.
Feed hopper 1 inside is provided with impeller, and impeller is connected with stand-by motor 11, and feed hopper 1 is positioned at above mair motor 2, upper end is provided with the first suction port 4, arrange two screw rods in machine barrel 3, screw rod comprises long bolt and short screw, and long bolt 31 and short screw 32 direction of rotation are equidirectional and cooperatively interact.
Screw rod drives by mair motor 2, is connected by reduction box 10; Long bolt 31 is connected with the driving gear in reduction box 10, and short screw 32 is connected with driven gear; Also idler gear is provided with between driving gear and driven gear.
Machine barrel 3 is provided with preheating zone 5, gradient-heated district 6 and outlet 7 successively from feed end, and outlet 7 is provided with moisture exhausting port, and upper end is provided with the second suction port 8, and suction port is connected with dust exhaust apparatus by dust collection pipeline.Gradient-heated district 6 is provided with nine heating regions altogether, is divided into intensification section, soaking zone and fluxing zone, respectively has three heating regions, is provided with temperature-controlled cabinet 9 outside machine barrel 3.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this description, as long as but be all subject to the protection of Patent Law in right of the present utility model.
Claims (9)
1. a double screw extruder, comprise feed hopper (1), mair motor (2) and machine barrel (3), described feed hopper (1) and mair motor (2) are positioned at described machine barrel (3) feed end, described feed hopper (1) is positioned at mair motor (2) top, two screw rods are set in described machine barrel (3), described screw rod drives by described mair motor (2), it is characterized in that: described machine barrel (3) is provided with preheating zone (5) successively from feed end, gradient-heated district (6) and outlet (7), described screw rod comprises long bolt (31) and short screw (32), described long bolt (31) and short screw (32) direction of rotation are equidirectional and cooperatively interact.
2. double screw extruder according to claim 1, is characterized in that: described mair motor (2) is connected by reduction box (10) with screw rod; Described long bolt (31) is connected with the driving gear in described reduction box (10), and described short screw (32) is connected with driven gear; Also idler gear is provided with between described driving gear and driven gear.
3. double screw extruder according to claim 2, is characterized in that: described gradient-heated district (6) is divided into intensification section, soaking zone and fluxing zone.
4. double screw extruder according to claim 3, it is characterized in that: described gradient-heated district (6) is provided with nine heating regions altogether, described intensification section, soaking zone and fluxing zone respectively have three heating regions, and described machine barrel (3) outside is provided with temperature-controlled cabinet (9).
5. double screw extruder according to claim 1, it is characterized in that: described feed hopper (1) upper end is provided with the first suction port (4), described outlet (7) upper end is provided with the second suction port (8), and described the first suction port (4) is connected with dust exhaust apparatus by dust collection pipeline with the second suction port (8).
6. double screw extruder according to claim 1, is characterized in that: described outlet (7) is provided with moisture exhausting port.
7. double screw extruder according to claim 1, is characterized in that: described feed hopper (1) inside is provided with impeller, and described impeller is connected with stand-by motor (11).
8. double screw extruder according to claim 1, is characterized in that: be provided with material propulsion plant (12) between described feed hopper (1) and machine barrel (3).
9. double screw extruder according to claim 8, is characterized in that: described material propulsion plant (12) comprises piston-type hydraulic cylinder (13), hydraulic pump and hydraulic oil container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520027376.1U CN204566642U (en) | 2015-01-15 | 2015-01-15 | A kind of double screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520027376.1U CN204566642U (en) | 2015-01-15 | 2015-01-15 | A kind of double screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204566642U true CN204566642U (en) | 2015-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520027376.1U Expired - Fee Related CN204566642U (en) | 2015-01-15 | 2015-01-15 | A kind of double screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204566642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638474A (en) * | 2018-08-16 | 2018-10-12 | 福建师范大学 | A kind of improvement double screw extruder powder bucket special |
-
2015
- 2015-01-15 CN CN201520027376.1U patent/CN204566642U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638474A (en) * | 2018-08-16 | 2018-10-12 | 福建师范大学 | A kind of improvement double screw extruder powder bucket special |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150819 Termination date: 20160115 |
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| EXPY | Termination of patent right or utility model |