CN220808435U - Feeding device of double-screw plastic extruder - Google Patents
Feeding device of double-screw plastic extruder Download PDFInfo
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- CN220808435U CN220808435U CN202322697249.XU CN202322697249U CN220808435U CN 220808435 U CN220808435 U CN 220808435U CN 202322697249 U CN202322697249 U CN 202322697249U CN 220808435 U CN220808435 U CN 220808435U
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- China
- Prior art keywords
- hopper
- feeding device
- plastic extruder
- mixing cavity
- mixing
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- 239000004033 plastic Substances 0.000 title claims abstract description 38
- 229920003023 plastic Polymers 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 31
- 238000002156 mixing Methods 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 15
- 238000013329 compounding Methods 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 12
- 244000309464 bull Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- PLXMOAALOJOTIY-FPTXNFDTSA-N Aesculin Natural products OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)[C@H]1Oc2cc3C=CC(=O)Oc3cc2O PLXMOAALOJOTIY-FPTXNFDTSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 230000035553 feeding performance Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a feeding device of a double-screw plastic extruder, which relates to the technical field of extruders and comprises a hopper and a mounting seat connected to the bottom end of the hopper, wherein the inside of the hopper is separated by a baffle plate, and a material mixing cavity is connected between the hopper and the mounting seat; two groups of mixing rods are symmetrically arranged in the mixing cavity, the two groups of mixing rods are oppositely arranged, the outer wall of each mixing rod is provided with a material guide plate, and the material guide plates are mounted on the inner wall of the mixing cavity at equal intervals. According to the utility model, the partition plates are arranged in the hopper, so that multicolor materials are not adhered to each other when entering the hopper, the feeding uniformity of the multicolor materials is ensured, the structure is simple, the production cost is low, meanwhile, the inside of the hopper can be adjusted according to extrusion requirements through the flexible structure arrangement of the partition plates, the flexibility is high, the applicability is wide, the front-end working procedures of multicolor plastic extrusion are saved, the using function of the device is increased, and the practicability is strong.
Description
Technical Field
The utility model relates to the technical field of extruders, in particular to a feeding device of a double-screw plastic extruder.
Background
The double-screw plastic extruder is high-quality and high-efficiency plastic extrusion equipment, is developed on the basis of a single-screw extruder, and has the characteristics of good feeding performance, mixing plasticizing performance, air exhaust performance, extrusion stability and the like, so that the double-screw plastic extruder has been widely applied to the molding processing of extruded products.
In chinese patent publication No. CN215095483U, a feeding device of a twin-screw plastic extruder is disclosed, comprising: the feeding hopper is made of rubber, and the upper part of the feeding hopper is open; the clamping plate structure comprises an upper clamping plate and a lower clamping plate, wherein the lower end of the upper clamping plate and the upper end of the lower clamping plate are pivoted with each other through a pivot shaft, the lower end of the lower clamping plate is movably arranged, and the upper end of the upper clamping plate is fixedly connected with the upper end of the feed hopper; a pair of clamping plate structures are arranged opposite to each other, and the clamping plate structures are arranged outside the feeding hopper; and the pair of linear driving mechanisms are respectively connected to the pair of pivot shafts so as to drive the pair of pivot shafts to be close to or far away from each other, so that the pair of clamping plate structures press the feeding hopper or release the feeding hopper.
In the above document, the feeding device of the twin-screw plastic extruder realizes continuous extrusion feeding, but when the twin-screw plastic extruder performs bicolor or multicolour plastic extrusion production, the feeding device usually performs mixing by an external machine or simultaneously performs multi-side feeding in a single hopper, so that multicolour plastic raw materials cannot be mixed in a multicolour manner, which results in poor molding effect of the plastic extruder, difficult control of colours and influence on the production quality of the plastic extruder.
Disclosure of utility model
The utility model aims to solve the defects that the existing feeding device is poor in molding effect and difficult to control color and influences the production quality of a plastic extruder because multicolor plastic raw materials cannot be mixed in multicolor by stirring materials through external machinery or simultaneously carrying out multi-side feeding in a single hopper when the double-screw plastic extruder is used for carrying out double-color or multicolor plastic extrusion production.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The feeding device of the double-screw plastic extruder comprises a hopper and a mounting seat connected to the bottom end of the hopper, wherein the interior of the hopper is separated by a partition plate, and a material mixing cavity is connected between the hopper and the mounting seat;
The inside symmetry of closing the material chamber is provided with two sets of compounding poles, and two sets of compounding poles are the subtend setting, the outer wall of compounding pole is provided with the stock guide, and the stock guide is at the inner wall equidistance interval installation in closing the material chamber.
As a further description of the above technical solution:
The material mixing rod is arranged in parallel in the material mixing cavity through the rotating rod, and the rotating rod is rotatably arranged in the material mixing cavity.
As a further description of the above technical solution:
One end fixedly connected with gear wheel of bull stick, and two sets of gear wheel are the meshing setting.
As a further description of the above technical solution:
the partition board is arranged in a I-shaped structure, a cross-shaped structure or an H-shaped structure.
As a further description of the above technical solution:
the surfaces of the partition plates and the inner walls of the hopper are coated with PTFE coatings.
In conclusion, by adopting the technical scheme, the utility model has the beneficial effects that:
According to the utility model, the partition plates are arranged in the hopper, so that multicolor materials are not adhered to each other when entering the hopper, the feeding uniformity of the multicolor materials is ensured, the structure is simple, the production cost is low, meanwhile, the inside of the hopper can be adjusted according to extrusion requirements through the flexible structure arrangement of the partition plates, the flexibility is high, the applicability is wide, the front-end working procedures of multicolor plastic extrusion are saved, the using function of the device is increased, and the practicability is strong.
According to the utility model, the material mixing cavity is arranged below the hopper, and under the action of the symmetrically arranged material mixing rods in the material mixing cavity, the material mixing rods are used for mixing multicolor plastic raw materials synchronously fed below the hopper, so that the material mixing effect of the multicolor raw materials is ensured, and the material mixing uniformity is realized by arranging the material guiding plate outside the material mixing rods, so that continuous and stable extrusion and discharge of a subsequent extruder are facilitated, and meanwhile, the structure is simple and the driving cost is low by synchronous gear disc driving.
Drawings
FIG. 1 is a schematic perspective view of a feeding device of a twin-screw plastic extruder according to the present utility model;
FIG. 2 is a schematic side sectional view of a feeding device of a twin-screw plastic extruder according to the present utility model;
FIG. 3 is a schematic perspective view of a material mixing cavity in the utility model;
fig. 4 is a schematic perspective view of a separator according to the present utility model.
Legend description:
A hopper; 2. a material mixing cavity; 3. a mounting base; 4. a partition plate; 5. a material guide plate; 6. a mixing rod; 7. a rotating rod; 8. a gear plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, a feeding device of a double-screw plastic extruder comprises a hopper 1, a material mixing cavity 2, a mounting seat 3, a partition plate 4, a material guiding plate 5, a material mixing rod 6, a rotating rod 7 and a gear disc 8, wherein the mounting seat 3 is arranged at the bottom end of the hopper 1, the device is convenient to feed at the top of the double-screw plastic extruder through the arrangement of the mounting seat 3, meanwhile, the partition plate 4 is arranged in a cross-shaped structure in consideration of feeding multicolor plastic raw materials, the partition plate 4 can be arranged in a cross-shaped structure according to the molding color requirement of the extruder, multicolor isolation of the inside of the hopper 1 is conveniently realized, adhesion of the multicolor raw materials before feeding is avoided, meanwhile, the surface of the partition plate 4 and the inner wall of the hopper 1 are coated with a PTFE coating through the arrangement of the PTFE coating, the inside of the hopper 1 is realized, the excellent anticorrosion performance of the inside of the hopper 1 is realized, the inside of the hopper 1 is convenient to feed the plastic raw materials rapidly and the inside of the hopper 1 is convenient to pass through the PTFE coating, and the plastic raw materials are rapidly carried out;
Further, considering carrying out the compounding to the polychrome plastic raw materials of hopper 1 inside feeding, be connected with the feed chamber 2 between hopper 1 and mount pad 3, specifically, the inside symmetry at feed chamber 2 is provided with two sets of compounding pole 6, and two sets of compounding pole 6 are the opposite direction setting, in order to realize the synchromesh rotation of two sets of compounding pole 6, the inside parallel engagement setting at feed chamber 2 is passed through to two sets of compounding pole 6, and the internal rotation installation at feed chamber 2 is passed through to bull stick 7, in order to realize the drive of bull stick 7, one end fixedly connected with gear disk 8 at bull stick 7, and two sets of gear disk 8 are the meshing setting, through such setting, then make single set of bull stick 7 carry out the compounding to plastic raw materials through the meshing effect of gear disk 8, then make two sets of compounding pole 6 synchromesh rotation, and in order to realize the compounding homogeneity to polychrome plastic raw materials, the outer wall at compounding pole 6 is provided with stock guide 5, the guide effect of having ensured plastic raw materials, and with stock guide 5 at the inner wall guide plate interval installation of feed chamber 2, stability has been realized, and service life is simple, and after-span maintenance is simple, and easy structure is convenient.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.
Claims (5)
1. The utility model provides a feeding device of twin-screw plastics extruder, includes hopper (1) and connects mount pad (3) in hopper (1) bottom, its characterized in that: the inside of the hopper (1) is separated by a partition plate (4), and a material mixing cavity (2) is connected between the hopper (1) and the mounting seat (3);
The inside symmetry of closing material chamber (2) is provided with two sets of compounding poles (6), and two sets of compounding poles (6) are the subtend setting, the outer wall of compounding pole (6) is provided with stock guide (5), and stock guide (5) are at the inner wall equidistance interval installation of closing material chamber (2).
2. A feeding device for a twin screw plastic extruder as defined in claim 1, wherein: the mixing rod (6) is arranged in parallel in the mixing cavity (2) through the rotating rod (7), and the rotating rod (7) is rotatably arranged in the mixing cavity (2).
3. A feeding device for a twin screw plastic extruder as defined in claim 2, wherein: one end of the rotating rod (7) is fixedly connected with a gear disc (8), and the two groups of gear discs (8) are meshed.
4. A feeding device for a twin screw plastic extruder as defined in claim 1, wherein: the partition board (4) is arranged in a I-shaped structure, a cross-shaped structure, a I-shaped structure or a H-shaped structure.
5. A feeding device for a twin screw plastic extruder as defined in claim 1, wherein: the surface of the partition board (4) and the inner wall of the hopper (1) are coated with PTFE coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322697249.XU CN220808435U (en) | 2023-10-09 | 2023-10-09 | Feeding device of double-screw plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322697249.XU CN220808435U (en) | 2023-10-09 | 2023-10-09 | Feeding device of double-screw plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220808435U true CN220808435U (en) | 2024-04-19 |
Family
ID=90673106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322697249.XU Active CN220808435U (en) | 2023-10-09 | 2023-10-09 | Feeding device of double-screw plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220808435U (en) |
-
2023
- 2023-10-09 CN CN202322697249.XU patent/CN220808435U/en active Active
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