CN202137942U - Twin-screw extruder - Google Patents
Twin-screw extruder Download PDFInfo
- Publication number
- CN202137942U CN202137942U CN201120227777U CN201120227777U CN202137942U CN 202137942 U CN202137942 U CN 202137942U CN 201120227777 U CN201120227777 U CN 201120227777U CN 201120227777 U CN201120227777 U CN 201120227777U CN 202137942 U CN202137942 U CN 202137942U
- Authority
- CN
- China
- Prior art keywords
- twin
- valve
- screw extruder
- vavuum pump
- utility
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
- B29C48/37—Gear pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a twin-screw extruder, comprising a feed opening, and a twin screw arranged in a cylinder, wherein an exhaust port is arranged on the twin screw and is connected with a first vacuum pump for vacuumizing by an exhaust pipe; the exhaust pipe is provided with an exhaust manifold which is connected with a second vacuum pump; and a first valve and a second valve are respectively arranged at the front end of the first vacuum pump and the front end of the second vacuum pump. The twin-screw extruder adopts two sets of vacuumizing devices, so that when one set of vacuumizing device needs to be suspended for maintenance, the other set of vacuumizing device can work continuously, therefore, the production schedule is not influenced.
Description
Technical field
The utility model relates to a kind of extruder, especially a kind of double screw extruder of withdrawing moisture in time.
Background technology
In the production process of film, be that powder is packed in the hello barrel, through extruder for shaping.But in the process of extruding; Because the existence of little molecule of melt and moisture; Make to have aqueous vapor in the machine barrel, the method for removing aqueous vapor usually is on machine barrel, to increase a vavuum pump aqueous vapor is taken away, but vacuum extractor need regularly be safeguarded; And complete equipment just can remain in operation after having only the maintenance of working as to accomplish, and can cause the delay of manufacturing schedule like this.
The utility model content
The technical problem that the utility model will solve is: a kind of novel double screw extruder is provided.
The utility model solves the technical scheme that its technical problem adopted: a kind of double screw extruder; Comprise spout and be arranged on the twin-screw in the machine barrel; Described twin-screw is provided with exhaust outlet, and exhaust outlet connects first vavuum pump that vacuumizes through blast pipe, and described blast pipe has exhaust manifold; Described exhaust manifold connects second vavuum pump, and the front end of described first vavuum pump and second vavuum pump is respectively arranged with first valve and second valve.
Say that further in order better to extract aqueous vapor, described first valve of the utility model and second valve are opened one of them at least.
The beneficial effect of the utility model is, solved the defective that exists in the background technology, adopts two cover vacuum extractors, and when wherein a cover needed time-out to safeguard, another set of can working on can not delayed manufacturing schedule.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the preferred embodiment of the utility model;
Among the figure: 1, spout; 2, twin-screw; 3, first vavuum pump; 4, second vavuum pump; 5, first valve; 6, second valve.
The specific embodiment
Combine accompanying drawing and preferred embodiment that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of double screw extruder as shown in Figure 1; Comprise spout 1 and be arranged on the twin-screw 2 in the machine barrel; Described twin-screw is provided with exhaust outlet, and exhaust outlet connects first vavuum pump 3 that vacuumizes through blast pipe, and described blast pipe has exhaust manifold; Described exhaust manifold connects second vavuum pump 4, and the front end of described first vavuum pump and second vavuum pump is respectively arranged with first valve 5 and second valve 6.
During operate as normal, can open first, second valve, two cover vavuum pumps are all worked, when a cover wherein needs maintenance or stops, another set ofly also can working on.
The just specific embodiment of describing in the above specification of the utility model; The various fleshes and bloods that illustrate not the utility model constitute restriction; Under the those of ordinary skill of technical field after having read specification can to before the described specific embodiment make an amendment or be out of shape, and do not deviate from the essence and the scope of utility model.
Claims (2)
1. double screw extruder; Comprise spout (1) and be arranged on the twin-screw (2) in the machine barrel; It is characterized in that: described twin-screw is provided with exhaust outlet, and exhaust outlet connects first vavuum pump (3) that vacuumizes through blast pipe, and described blast pipe has exhaust manifold; Described exhaust manifold connects second vavuum pump (4), and the front end of described first vavuum pump and second vavuum pump is respectively arranged with first valve (5) and second valve (6).
2. double screw extruder as claimed in claim 1 is characterized in that: described first valve (5) is opened one of them at least with second valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120227777U CN202137942U (en) | 2011-06-30 | 2011-06-30 | Twin-screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120227777U CN202137942U (en) | 2011-06-30 | 2011-06-30 | Twin-screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137942U true CN202137942U (en) | 2012-02-08 |
Family
ID=45549018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120227777U Expired - Fee Related CN202137942U (en) | 2011-06-30 | 2011-06-30 | Twin-screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202137942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700110A (en) * | 2012-06-07 | 2012-10-03 | 张家港市贝尔机械有限公司 | Vacuum exhaustion device for extruder |
| CN110901018A (en) * | 2019-12-10 | 2020-03-24 | 湖南工业大学 | Double-end electric vacuum pumping device for mixing extrusion |
-
2011
- 2011-06-30 CN CN201120227777U patent/CN202137942U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700110A (en) * | 2012-06-07 | 2012-10-03 | 张家港市贝尔机械有限公司 | Vacuum exhaustion device for extruder |
| CN110901018A (en) * | 2019-12-10 | 2020-03-24 | 湖南工业大学 | Double-end electric vacuum pumping device for mixing extrusion |
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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: 20120208 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |