CN202846749U - Twin-screw extruder - Google Patents
Twin-screw extruder Download PDFInfo
- Publication number
- CN202846749U CN202846749U CN 201220521558 CN201220521558U CN202846749U CN 202846749 U CN202846749 U CN 202846749U CN 201220521558 CN201220521558 CN 201220521558 CN 201220521558 U CN201220521558 U CN 201220521558U CN 202846749 U CN202846749 U CN 202846749U
- Authority
- CN
- China
- Prior art keywords
- screw extruder
- double screw
- charging basket
- air
- aspirating hole
- 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
Links
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a twin-screw extruder, which comprises a charging barrel that is provided with a suction hole. Compared with the prior art, the charging barrel of the twin-screw extruder is provided with the suction hole, so that air can be sucked out of the charging barrel through the suction hole when in production; air brought in by the raw material can be sucked out, so that pores are prevented from being formed on the product.
Description
Technical field
The utility model relates to PVC CABLE MATERIALS granulating production equipment, relates in particular to a kind of double screw extruder.
Background technology
PVC CABLE MATERIALS granulating production equipment comprises be used to the cooling mixing machine that blends raw material, for the feeding machine that adds raw material to extruder, is used for the extruder of Raw material processing slivering shape, for the strip material being cut into granular air-cooled die-surface hot cutting head, being used for equipment such as the isolated cyclone separator of granular product and air-cooled lengthening vibratory sieves.
Extruder comprises charging basket and is positioned at the assemblies such as screw rod of charging basket, quantity according to the charging basket inner screw, extruder generally is divided into single screw extrusion machine and double screw extruder, the advantages such as the shearing that fricative heat is few, material is suffered is relatively more even because double screw extruder has, the carrying capacity of screw rod is large, extrusion capacity is more stable, material time of staying in machine barrel is long and mix, main employing double screw extruder in the general PVC CABLE MATERIALS granulation production industry.
Owing to the raw material that enters double screw extruder can be mingled with air because of reasons such as undercompoundings, and there is not exhaust equipment on the double screw extruder, these air that are mingled with will be dissolved on the strip material of double screw extruder output in the mode of pore, so that on the final granular product with pore, form bad.
The utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of double screw extruder, can effectively avoid producing pore at product.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of double screw extruder comprises charging basket, is provided with aspirating hole at charging basket.
The said structure prior art of comparing has designed aspirating hole at charging basket, can bleed to charging basket when producing by aspirating hole, and the air that raw material is brought into is extracted out, avoids producing pore at product.
Preferably, described aspirating hole is arranged on the tail end of charging basket; It is noted that the increase owing to aspirating hole, the length that might need to prolong charging basket, the length of charging basket inner screw also needs corresponding increase certainly.
Preferably, also comprise air-extractor, described air-extractor is communicated with aspirating hole by pipeline; Set out air-extractor, just can avoid double screw extruder outfit difficulty in use.
Preferably, described air-extractor is vavuum pump.
Preferably, be provided with control valve on the described pipeline.
Beneficial effect: the double screw extruder that the utility model provides, the prior art of comparing has designed aspirating hole at charging basket, can bleed to charging basket when producing by aspirating hole, and the air that raw material is brought into is extracted out, avoids producing pore at product.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Be illustrated in figure 1 as a kind of double screw extruder, comprise charging basket 1 and vavuum pump 3, be provided with aspirating hole 2 at the afterbody of charging basket 1, described vavuum pump 3 is communicated with aspirating hole 2 by pipeline, is provided with control valve at pipeline.
The above only is preferred embodiment of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a double screw extruder comprises charging basket (1), it is characterized in that: be provided with aspirating hole (2) on the described charging basket (1).
2. double screw extruder according to claim 1, it is characterized in that: described aspirating hole (2) is arranged on the tail end of charging basket (1).
3. according to double screw extruder claimed in claim 1, it is characterized in that: also comprise air-extractor (3), described air-extractor (3) is communicated with aspirating hole (2) by pipeline.
4. double screw extruder according to claim 3, it is characterized in that: described air-extractor (3) is vavuum pump.
5. double screw extruder according to claim 3 is characterized in that: be provided with control valve on the described pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521558 CN202846749U (en) | 2012-10-12 | 2012-10-12 | Twin-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220521558 CN202846749U (en) | 2012-10-12 | 2012-10-12 | Twin-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202846749U true CN202846749U (en) | 2013-04-03 |
Family
ID=47977985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220521558 Expired - Fee Related CN202846749U (en) | 2012-10-12 | 2012-10-12 | Twin-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202846749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481396A (en) * | 2013-09-29 | 2014-01-01 | 昆山市华浦塑业有限公司 | Plastic pelletizer |
-
2012
- 2012-10-12 CN CN 201220521558 patent/CN202846749U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481396A (en) * | 2013-09-29 | 2014-01-01 | 昆山市华浦塑业有限公司 | Plastic pelletizer |
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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: 20130403 Termination date: 20151012 |
|
| EXPY | Termination of patent right or utility model |