CN216658847U - Five-screw rubber and plastic mixing extruder with hopper for stirring - Google Patents
Five-screw rubber and plastic mixing extruder with hopper for stirring Download PDFInfo
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- CN216658847U CN216658847U CN202121915428.0U CN202121915428U CN216658847U CN 216658847 U CN216658847 U CN 216658847U CN 202121915428 U CN202121915428 U CN 202121915428U CN 216658847 U CN216658847 U CN 216658847U
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- 238000003756 stirring Methods 0.000 title claims abstract description 38
- 239000004033 plastic Substances 0.000 title claims abstract description 18
- 229920003023 plastic Polymers 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims 3
- 241001330002 Bambuseae Species 0.000 claims 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 3
- 239000011425 bamboo Substances 0.000 claims 3
- 238000004513 sizing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000000693 micelle Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
A five-screw rubber and plastic mixing extruder with hopper stirring belongs to the technical field of rubber and plastic machinery, and is characterized in that a material stirring screw is arranged on the basis of a three-screw extruder (201420198530.7) and comprises an underframe, a feeding cylinder, a gear box, a material extruding cylinder and a die head, wherein a hopper is arranged on the feeding cylinder, a dustproof cover is arranged above the hopper, a blanking channel is arranged at the lower end of the hopper, the blanking channel is communicated with the feeding cylinder, a material stirring screw is arranged between the front wall and the rear wall of the blanking channel and consists of two mutually meshed screw rods, the distance between the lower surface of the material stirring screw and the feeding cylinder is 5-10 cm, the material stirring screw comprises a cylindrical screw rod, a cylindrical rack and a conical screw rod, and the material stirring screw rod is connected with a driving machine at the rear part of the hopper.
Description
Technical Field
The utility model relates to a rubber and plastic mixing extruder, in particular to a five-screw rubber and plastic mixing extruder with a hopper for stirring, and belongs to the technical field of rubber and plastic machinery.
Background
There is a "three-screw extruder (201420198530.7)", which solves the problem of difficult venting in the barrel of the traditional extruder, i.e. the extruder occasionally has a short material break at the discharge port due to aeration; the technical problem of lacking the function of remixing and plasticizing the rubber material in the cylinder is solved. However, there are drawbacks to passing material down the hopper. Because the material will be through the procedure of heating mixing material earlier before getting into the hopper, and the material includes irregular shape, have the irregular shape material of higher temperature and get into behind the hopper that is airtight relatively, if downward material conveying is not in time, the material can form piling up and cause the barrel to expect absolutely at the hopper, pile up and still can heat up at the hopper and foam in advance when serious.
Disclosure of Invention
In order to solve the technical problems of screw cylinder breakage and advanced foaming of the three-screw extruder, the utility model provides a five-screw rubber and plastic mixing extruder with a hopper for stirring.
The technical scheme adopted by the utility model is as follows: the five-screw rubber and plastic mixing extruder with the stirring of the hopper is characterized in that a material stirring screw is arranged on the basis of a three-screw extruder (201420198530.7) and consists of an underframe, a feeding cylinder, a gear box, a material extruding cylinder and a die head, the feeding cylinder is provided with the hopper, the hopper is arranged on the hopper, a dustproof cover is arranged above the hopper, a blanking channel is arranged at the lower end of the hopper, the blanking channel is communicated with the feeding cylinder, a material stirring screw is arranged between the front wall and the rear wall of the blanking channel and consists of two mutually meshed screw rods, the lower part of the material stirring screw is 5-10 cm away from the feeding cylinder, the material stirring screw comprises a cylindrical screw rod, a cylindrical rack and a conical screw rod, and the material stirring screw rod is connected with a driving machine at the back of the hopper.
The box of gear box, the barrel of feed cylinder and the barrel of crowded feed cylinder connect gradually, the die head is connected with crowded feed cylinder, this five screw extruder still has the long screw, first short screw and the short screw of second, the long screw is in the centre, first short screw and the short screw of second are in the both sides of long screw and all mesh with the long screw, latter half of long screw is in the feed cylinder, first half of long screw is in crowded feed cylinder, first short screw, the short screw of second are in the feed cylinder, first short screw, long screw and the short screw of second respectively with the gear connection that corresponds in the gear box, the speed reducer is connected with the initiative hub connection in the gear box.
The screw moment of the long screw rod at the feeding cylinder part is larger than that at the extruding cylinder part.
The chassis is provided with a linear guide rail, a feeding frame and an extruding frame, a barrel body of a feeding barrel and a barrel body of an extruding barrel are respectively fixed on the feeding frame and the extruding frame, the feeding frame and the extruding frame can move on the linear guide rail of the chassis through respective bottom sliding blocks, a box body of a gear box and the barrel body of the feeding barrel as well as the barrel body of the feeding barrel and the barrel body of the extruding barrel are respectively connected through barrel body connecting mechanisms, and the gear box is connected with a motor through a speed reducer.
The first short screw, the long screw and the second short screw are arranged side by side, and the cross sections of the three screws are arranged in a straight line shape or an inverted triangle shape or a positive triangle shape.
The utility model has the beneficial effects that: this five-screw rubber and plastic mixing extruder of area hopper stirring is on the basis of keeping former "three screw extruder (201420198530.7)" excellent exhaust performance, mixing function and plastify effect, because of addding the material screw rod for in the hopper no matter what material and the material of shape can both be timely, smooth and easy the whereabouts to the feed cylinder, effectively overcome the feed cylinder and expect absolutely, the drawback that the material foams in advance at the hopper.
Drawings
The utility model is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic side view of the present invention;
fig. 2 is a schematic top view of the present invention.
In the figure, the device comprises a base frame 1, a base frame 2, a feeding barrel 3, a gear box 4, a speed reducer 5, an extruding barrel 6, a die head 7, a hopper 8, a dust cover 9, a blanking channel 10, a material stirring screw rod 11, a long screw rod 12, a first short screw rod 13, a second short screw rod 14, a linear slide rail 15, a feeding frame 16, an extruding frame 17 and a motor.
Detailed Description
In the embodiment of fig. 1 and 2, a five-screw rubber and plastic mixing extruder with hopper stirring is provided, the five-screw rubber and plastic mixing extruder is provided with a material stirring screw 9 on the basis of a three-screw extruder (201420198530.7), and comprises an underframe 1, a feeding cylinder 2, a gear box 3, a speed reducer 4, a material extruding cylinder 5 and a die head 6, the feeding cylinder 2 is provided with a hopper 7, a dust cover 8 is arranged on the hopper 7, the lower end of the hopper 7 is provided with a blanking channel 9, the blanking channel 9 is communicated with the feeding cylinder 2, the material stirring screw 10 is arranged between the front wall and the rear wall of the blanking channel 9, the material stirring screw 10 consists of two mutually meshed screws, the distance between the lower part of the material stirring screw 10 and the feeding cylinder is 5-10 cm, the material stirring screw 10 comprises a cylindrical screw, a cylindrical rack and a conical screw, and the material stirring screw 10 is connected with an independent driving machine behind the hopper 7.
The five-screw extruder is further provided with a long screw 11, a first short screw 12 and a second short screw 13, the long screw 11 is arranged in the middle, the first short screw 12 and the second short screw 3 are arranged on two sides of the long screw 11 and are meshed with the long screw 11, the rear half part of the long screw 11 is arranged in the feeding cylinder 2, the front half part of the long screw 11 is arranged in the extruding cylinder 5, the first short screw 12 and the second short screw 13 are arranged in the feeding cylinder 2, and the first short screw 12, the long screw 11 and the second short screw 13 are respectively connected with corresponding gears in the gear box 3.
The screw moment of the long screw 11 at the position of the feeding cylinder 2 is larger than that at the position of the extruding cylinder 5.
The chassis is provided with a linear guide rail 14, a feeding frame 15 and an extruding frame 16, a barrel body of the feeding barrel 2 and a barrel body of the extruding barrel 5 are respectively fixed on the feeding frame 15 and the extruding frame 16, the feeding frame 15 and the extruding frame 16 can move on the linear guide rail 14 of the chassis 1 through respective bottom sliding blocks, a box body of the gear box 3 and the barrel body of the feeding barrel 2 and the barrel body of the extruding barrel 5 are respectively connected through barrel body connecting mechanisms, and the gear box 3 is connected with a motor through a speed reducer 4.
The first short screw 12, the long screw 11 and the second short screw 13 are arranged side by side, and the cross sections of the three screws are arranged in a straight line shape, an inverted triangle shape or a positive triangle shape.
Example 1 an ethylene vinyl acetate copolymer (EVA) was used as an example. When the materials are in a loose micelle shape after banburying by an internal mixer, the micelle is put into a hopper 7 and covered with a dustproof cover 8.
Example 2: the five-screw rubber and plastic mixing extruder with hopper stirring is started, the material stirring screw 10 positioned in the blanking channel 9 of the hopper 7 is driven by a driving machine to rotate oppositely from two sides to the middle of the blanking channel 9, and a micelle is extruded and transferred downwards by the material stirring screw 10 and enters the feeding cylinder 2 from the lower end of the blanking channel 9.
Example 3: the sizing material entering the feeding barrel 2 is deeply mixed and plasticized under the combined action of the long screw 11, the first short screw 12 and the second short screw 13, and simultaneously pushed forward from the rear end by the long screw 11, the first short screw 12 and the second short screw 13 to enter the extruding barrel 5. The process that the sizing material is highly compressed from the three-screw feeding cylinder 2 with larger space and enters the single-screw extruding cylinder 5 with smaller space is also the process of deep plasticization.
Example 4: after the sizing material enters the extruding cylinder 5, the sizing material moves forwards under the pushing of the front section of the long screw 11 until the sizing material reaches the die head 6, and then the sizing material is extruded from the discharge hole of the die head 6 and enters the next procedure.
Claims (5)
1. The utility model provides a take five screw rods rubber and plastic mixing extruder of hopper stirring which characterized by: the five-screw extruder is characterized in that the three-screw extruder comprises a chassis, a motor, a speed reducer, a gear box, a feeding cylinder, an extruding cylinder and a die head, wherein a hopper is arranged on the feeding cylinder, a box body of the gear box, a cylinder body of the feeding cylinder and the cylinder body of the extruding cylinder are sequentially connected, the die head is connected with the extruding cylinder, the extruder is provided with a first short screw and a second short screw of a long screw, the first short screw and the second short screw are positioned on two sides of the long screw and are both meshed with the long screw, the front half part of the long screw is positioned in the feeding cylinder, the rear half part of the long screw is positioned in the extruding cylinder, the first short screw and the second short screw are positioned in the feeding cylinder, the first short screw, the long screw and the second short screw are respectively connected with corresponding gears in the gear box, and the speed reducer is connected with a driving shaft in the gear box; the material stirring screw is arranged on the basis and comprises an underframe, a feeding cylinder, a gear box, a material extruding cylinder and a die head, wherein a hopper is arranged on the feeding cylinder, a dustproof cover is arranged above the hopper, a blanking channel is arranged at the lower end of the hopper, the blanking channel is communicated with the feeding cylinder, the material stirring screw is arranged between the front wall and the rear wall of the blanking channel and consists of two mutually meshed screws, the distance between the lower surface of the material stirring screw and the feeding cylinder is 5-10 cm, the material stirring screw comprises a cylindrical screw, a cylindrical rack and a conical screw, and the material stirring screw is connected with a driving machine at the rear of the hopper.
2. The five-screw rubber-plastic mixing extruder with hopper stirring of claim 1, which is characterized in that: the box of gear box, the barrel of a feeding section of thick bamboo and the barrel of crowded feed cylinder connect gradually, the die head is connected with crowded feed cylinder, this five screw extruder still has the long screw, first short screw and the short screw of second, the long screw is in the centre, first short screw and the short screw of second are in the both sides of long screw and all mesh with the long screw, latter half of long screw is in the feeding section of thick bamboo, first half of long screw is in crowded feed cylinder, first short screw, the short screw of second are in the feeding section of thick bamboo, first short screw, the short screw of long screw and second respectively with the gear connection that corresponds in the gear box, the speed reducer is connected with the initiative hub connection in the gear box.
3. The five-screw rubber-plastic mixing extruder with hopper stirring of claim 2, which is characterized in that: the screw moment of the long screw rod at the feeding cylinder part is larger than that of the long screw rod at the extruding cylinder part.
4. The five-screw rubber-plastic mixing extruder with hopper stirring of claim 1, which is characterized in that: the gear box is connected with the motor through the speed reducer.
5. The five-screw rubber-plastic mixing extruder with hopper stirring of claim 2, which is characterized in that: the first short screw, the long screw and the second short screw are arranged side by side, and the cross sections of the three screws are arranged in a straight line shape or in an inverted triangle shape or in a positive triangle shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121915428.0U CN216658847U (en) | 2021-08-16 | 2021-08-16 | Five-screw rubber and plastic mixing extruder with hopper for stirring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121915428.0U CN216658847U (en) | 2021-08-16 | 2021-08-16 | Five-screw rubber and plastic mixing extruder with hopper for stirring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216658847U true CN216658847U (en) | 2022-06-03 |
Family
ID=81759444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121915428.0U Active CN216658847U (en) | 2021-08-16 | 2021-08-16 | Five-screw rubber and plastic mixing extruder with hopper for stirring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216658847U (en) |
-
2021
- 2021-08-16 CN CN202121915428.0U patent/CN216658847U/en active Active
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