CN214983067U - Co-rotating double-screw plastic extruder - Google Patents
Co-rotating double-screw plastic extruder Download PDFInfo
- Publication number
- CN214983067U CN214983067U CN202121334683.6U CN202121334683U CN214983067U CN 214983067 U CN214983067 U CN 214983067U CN 202121334683 U CN202121334683 U CN 202121334683U CN 214983067 U CN214983067 U CN 214983067U
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- Prior art keywords
- plastic extruder
- feed cylinder
- screw plastic
- twin screw
- rotating twin
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 238000010094 polymer processing Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a better syntropy double screw plastic extruder of evacuation effect. The technical scheme adopted comprises the following steps: the feed cylinder, establish the hopper of feed cylinder rear end, establish a pair of screw rod in the feed cylinder and drive the rotatory motor of screw rod, its characterized in that: the side of feed cylinder is equipped with the aspirating hole, aspirating hole upper end is equipped with the last water conservancy diversion face that is the angle of elevation setting, just go up the water conservancy diversion face and be located the central line top of feed cylinder. Has the advantages that: through set up the aspirating hole of injecing the structure in the feed cylinder side, realize the evacuation, can effectually avoid falling into the problem in the feed cylinder again because of volatile substance or processing aid's piling up to product quality has been improved.
Description
Technical Field
The utility model relates to a double-screw plastic extruder.
Background
The double-screw extruder is the most common machine in the modified plastic industry and is widely applied to the polymer processing industry and other production and processing fields; the twin-screw extruder is divided into two types, namely a meshing type extruder and a non-meshing type extruder, and the meshing type twin-screw extruder is divided into two types, namely a co-rotating extruder and a counter-rotating extruder. In the plastic extrusion granulation production process, in order to ensure the quality of the product, vacuum pumping is required in the extrusion granulation production process to remove small molecule volatile matters and processing aids in molten materials. The vacuum structure is shown in the Chinese utility model with patent number 202021934093.2. An air exhaust hole is arranged above the charging barrel and is connected with a vacuum pump through a pipeline. There are disadvantages in that: the volatile matter or processing aid and other impurities are easy to accumulate at the air exhaust hole or in the pipeline and fall into the material barrel again, so that the quality of the product is deteriorated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a better syntropy double screw plastic extruder of evacuation effect.
In order to solve the above problem, the utility model discloses a technical scheme include: the feed cylinder, establish the hopper of feed cylinder rear end, establish a pair of screw rod in the feed cylinder and drive the rotatory motor of screw rod, its characterized in that: the side of feed cylinder is equipped with the aspirating hole, aspirating hole upper end is equipped with the last water conservancy diversion face that is the angle of elevation setting, just go up the water conservancy diversion face and be located the central line top of feed cylinder.
The co-rotating double-screw plastic extruder is characterized in that: the lower end of the extraction hole is provided with a lower flow guide surface which is arranged at a depression angle, and the lower flow guide surface is positioned below the central line of the charging barrel.
The co-rotating double-screw plastic extruder is characterized in that: the elevation angle alpha of the upper guide surface is 15-45 degrees.
The co-rotating double-screw plastic extruder is characterized in that: the elevation angle alpha of the upper diversion surface is 20 degrees.
The co-rotating double-screw plastic extruder is characterized in that: the depression angle beta of the lower diversion surface is 50-30 degrees.
The co-rotating double-screw plastic extruder is characterized in that: the depression angle beta of the lower diversion surface is 40 degrees.
The co-rotating double-screw plastic extruder is characterized in that: and a vacuum chamber connected with the air suction hole is arranged on the side surface of the charging barrel.
The co-rotating double-screw plastic extruder is characterized in that: the vacuum chamber is connected with a sealing cover.
The co-rotating double-screw plastic extruder is characterized in that: the cover is connected with the vacuum chamber through a flange.
The co-rotating double-screw plastic extruder is characterized in that: the air pumping hole is positioned on the side surface of the charging barrel and close to the outlet position of the charging barrel.
The utility model discloses a syntropy double screw plastic extruder beneficial effect: through set up the aspirating hole of injecing the structure in the feed cylinder side, realize the evacuation, can effectually avoid falling into the problem in the feed cylinder again because of volatile substance or processing aid's piling up to product quality has been improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of a co-rotating twin-screw plastic extruder of the present invention;
FIG. 2 is a cross-sectional view of the co-rotating twin screw plastic extruder of the present invention;
figure 3 is a cross-sectional view of a cartridge of the present invention;
FIG. 4 is a schematic structural view of the air exhaust hole of the present invention;
FIG. 5 is a schematic view of the vacuum chamber of the present invention;
fig. 6 is a partially enlarged view of fig. 1.
Detailed Description
As shown in fig. 1 to 6, the co-rotating twin-screw plastic extruder of the present invention comprises a charging barrel 1, a hopper 2 arranged at the rear end of the charging barrel 1, a pair of screws 3 arranged in the charging barrel 1, and a motor 4 for driving the screws 3 to rotate. The side of the charging barrel 1 is provided with an air exhaust hole 5, and the air exhaust hole 5 is close to the outlet position of the charging barrel. The air extraction holes 5 may be provided on both left and right sides of the cartridge 1. An upper flow guide surface 6 arranged at an elevation angle is arranged at the upper end of the air suction hole 5, and the upper flow guide surface 6 is positioned above a central line 7 of the charging barrel 1. The elevation angle alpha of the upper diversion surface 6 is 15-45 degrees, and ideally is 20 degrees.
Preferably, the lower end of the extraction hole 5 is provided with a lower flow guide surface 8 arranged at a depression angle, and the lower flow guide surface 8 is positioned below the central line 7 of the charging barrel 1. The depression angle beta of the lower diversion surface 8 is 50-30 degrees, and ideally is 40 degrees. Through the structure of the lower guide surface 8, the volatile matter or the processing aid can be further prevented from falling into the material barrel again due to accumulation.
Preferably, a vacuum chamber 9 connected with the air suction hole 5 is arranged on the side surface of the charging barrel 1. The vacuum chamber 9 is connected with a sealing cover 11. The cover 11 is connected to the vacuum chamber 9 via a flange 10. Is connected with a pipeline through the vacuum chamber 9 and is connected with a vacuum pump through the pipeline. By the structure, the pipeline is convenient to install and is convenient to maintain and clean daily.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention are all included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a syntropy twin-screw plastic extruder, includes feed cylinder (1), establishes hopper (2) in feed cylinder (1) rear end, establish a pair of screw rod (3) in feed cylinder (1) and drive motor (4) that screw rod (3) are rotatory, its characterized in that: the side of feed cylinder (1) is equipped with aspirating hole (5), aspirating hole (5) upper end is equipped with and is the last water conservancy diversion face (6) that the angle of elevation set up, just go up water conservancy diversion face (6) and be located the central line (7) top of feed cylinder (1).
2. The co-rotating twin screw plastic extruder of claim 1, wherein: the lower end of the air suction hole (5) is provided with a lower flow guide surface (8) which is arranged at a depression angle, and the lower flow guide surface (8) is positioned below the central line (7) of the charging barrel (1).
3. The co-rotating twin screw plastic extruder of claim 1, wherein: the elevation angle alpha of the upper diversion surface (6) is 15-45 degrees.
4. A co-rotating twin screw plastic extruder as claimed in claim 3, characterised in that: the elevation angle alpha of the upper diversion surface (6) is 20 degrees.
5. The co-rotating twin screw plastic extruder of claim 2, wherein: the depression angle beta of the lower diversion surface (8) is 50-30 degrees.
6. The co-rotating twin screw plastic extruder of claim 5, wherein: the depression angle beta of the lower diversion surface (8) is 40 degrees.
7. The co-rotating twin screw plastic extruder of claim 1, wherein: and a vacuum chamber (9) connected with the air suction hole (5) is arranged on the side surface of the charging barrel (1).
8. The co-rotating twin screw plastic extruder of claim 7, wherein: the vacuum chamber (9) is connected with a sealing cover (11).
9. The co-rotating twin screw plastic extruder of claim 8, wherein: the cover (11) is connected to the vacuum chamber (9) via a flange (10).
10. The co-rotating twin screw plastic extruder of claim 1, wherein: the air suction hole (5) is positioned on the side surface of the charging barrel (1) and close to the outlet position of the charging barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121334683.6U CN214983067U (en) | 2021-06-16 | 2021-06-16 | Co-rotating double-screw plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121334683.6U CN214983067U (en) | 2021-06-16 | 2021-06-16 | Co-rotating double-screw plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214983067U true CN214983067U (en) | 2021-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121334683.6U Active CN214983067U (en) | 2021-06-16 | 2021-06-16 | Co-rotating double-screw plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214983067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393806A (en) * | 2022-03-08 | 2022-04-26 | 公元股份有限公司 | Dehumidification structure of extruder |
-
2021
- 2021-06-16 CN CN202121334683.6U patent/CN214983067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393806A (en) * | 2022-03-08 | 2022-04-26 | 公元股份有限公司 | Dehumidification structure of extruder |
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