CN104647723A - Extrusion device of plastic extruder - Google Patents
Extrusion device of plastic extruder Download PDFInfo
- Publication number
- CN104647723A CN104647723A CN201410071121.5A CN201410071121A CN104647723A CN 104647723 A CN104647723 A CN 104647723A CN 201410071121 A CN201410071121 A CN 201410071121A CN 104647723 A CN104647723 A CN 104647723A
- Authority
- CN
- China
- Prior art keywords
- arc
- screw rods
- plastic extruder
- jacket casing
- shaped barrels
- 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.)
- Pending
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
- B29C48/50—Details of extruders
- B29C48/68—Barrels or cylinders
- B29C48/682—Barrels or cylinders for twin screws
-
- 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
- B29C48/402—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 the screws having intermeshing parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses an extrusion device of a plastic extruder and relates to the technical field of manufacturing of the plastic extruder. The extrusion device comprises a barrel body which is internally provided with a barrel sleeve, and two screw rods which are arranged in the barrel sleeve and are mutually engaged, wherein the barrel sleeve is provided with two arc-shaped barrels with connected side walls; the two arc-shaped barrels are connected to form a whole body; and the gap between the inner walls of the arc-shaped barrels and the outer circle generatrixes of the two screw rods is 0.2mm-0.25mm. Compared with the prior art, the machining position precision and size precision of inner cavities of the arc-shaped barrels can be controlled better so that the mounting gap between the inner walls of the arc-shaped barrels and the two screw rods is ensured, furthermore, materials can be forwards extruded very well by using the two mutually-engaged screw rods; and the residual material remained on the inner wall of the barrel sleeve also can be reduced so that the product quality of produced modified plastic is improved.
Description
Technical field
The present invention relates to plastic extruder manufacturing technology field, especially a kind of extruding device for double-screw plastic extrusion machine.
Background technology
The extruding device of double-screw plastic extrusion machine is one of important parts of double-screw plastic extrusion machine, its operation principle be various plastic raw materials is fully mixed the extruding device being input to plastic extruder heating unit on melting, the modified plastics of melting is configured as strip by die head of plastic extruding machine by the raw material after melting, and cutting off for follow-up equipment becomes particulate material.Existing a kind of plastic extruder extruding device, the cylindrical shell being provided with jacket casing in this plastic extruder extruding device comprises and the two intermeshing screw rods be located in described jacket casing, the arc tube that described jacket casing passes through interlocking mutually by two sidewalls is formed.In use there are the following problems for this plastic extruder extruding device: 1, because jacket casing is connected and composed by two arc tubes, for ease of two arc tubes interlocking and prevent because alignment error causes screw rod interference, add and intentionally arc tube intracavity diameter is strengthened man-hour, therefore, cause the gap of two arc tube inwalls and two screw rod cylindrical buses large, two screw rods are when engaging each other material extrusion, and the easy carbonization of clout remaining in jacket casing inwall produces impurity and affects the product quality of modified plastics; 2, arc tube is processed by bar, and processing capacity is large, take material, cost is high.
Summary of the invention
Problem solved by the invention is to provide a kind of plastic extruder extruding device, has clout to remain easy carbonization generation impurity and affect the problem of product quality with the jacket casing inwall solving existing plastic extruder.
In order to solve the problem, the technical solution used in the present invention is: the cylindrical shell being provided with jacket casing in this plastic extruder extruding device comprises and the two intermeshing screw rods be located in described jacket casing, described jacket casing has the arc tube that two sidewalls pass through connection mutually, two described arc tubes are the entirety be connected, and the gap of the inwall of described arc tube and two described screw rod cylindrical buses is 0.18 millimeter ~ 0.25 millimeter.
In above-mentioned plastic extruder extruding device technical scheme, technical scheme can also be more specifically: described jacket casing is made up of steel-casting.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect: the arc tube 1, passing through connection mutually due to two sidewalls of jacket casing is as a whole, can better by controlling its arc tube embedded SMA actuators positional precision and dimensional accuracy guarantees that the assemblage gap of two arc tube inwalls and two screw rods is at an optimum range, two intermeshing screw rods can be completed well and extrude feeding forward, the clout remaining in jacket casing inwall can be made again to reduce to minimum, improve the product quality of producing modified plastics; 2, because jacket casing is made up of steel-casting, saving of labor, material-saving, reduction production cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Embodiment 1:
The cylindrical shell 1 of jacket casing is embedded with in plastic extruder extruding device as shown in Figure 1 comprises, be coated with in jacket casing two intermeshing and be connected with the screw rod 3 of drive unit, jacket casing has the arc tube 2 that two sidewalls pass through connection mutually, the entirety of two arc tubes 2 for being connected, the jacket casing of the present embodiment is made up of steel-casting, and the gap s of the inwall of arc tube 2 and two screw rod 3 cylindrical buses is 0.2 millimeter.
Embodiment 2:
The gap s of the inwall of arc tube 2 and two screw rod 3 cylindrical buses is 0.25 millimeter; Other features are identical with embodiment 1.
Because the inwall of arc tube 2 and the gap s of two screw rod 3 cylindrical buses are 0.2 millimeter ~ 0.25 millimeter, make two intermeshing screw rods operationally can successfully material extrusion forward, the clout remaining in jacket casing inwall can be reduced again, thus improve the product quality of modified plastics.
Claims (2)
1. a plastic extruder extruding device, the cylindrical shell (1) being provided with jacket casing in comprising and the two intermeshing screw rods (3) be located in described jacket casing, described jacket casing has the arc tube (2) that two sidewalls pass through connection mutually, it is characterized in that: the entirety of two described arc tubes (2) for being connected, the inwall of described arc tube (2) and the gap (s) of two described screw rod (3) cylindrical buses are 0.2 millimeter ~ 0.25 millimeter.
2. plastic extruder extruding device according to claim 1, is characterized in that: described jacket casing is made up of steel-casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071121.5A CN104647723A (en) | 2014-02-28 | 2014-02-28 | Extrusion device of plastic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071121.5A CN104647723A (en) | 2014-02-28 | 2014-02-28 | Extrusion device of plastic extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104647723A true CN104647723A (en) | 2015-05-27 |
Family
ID=53239594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410071121.5A Pending CN104647723A (en) | 2014-02-28 | 2014-02-28 | Extrusion device of plastic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104647723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116718A (en) * | 2017-07-07 | 2017-09-01 | 中国石油大学(华东) | A kind of complete smooth twin-screw extrusion machine rotor with changeover portion |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4935183A (en) * | 1984-04-23 | 1990-06-19 | Wenger Manufacturing, Inc. | Method of extruding material through a twin-screw extruder having respective conical nose screw sections |
| US4983114A (en) * | 1989-07-27 | 1991-01-08 | Wenger Manufacturing, Inc. | Inlet for twin screw extruder |
| WO1993014921A1 (en) * | 1992-01-31 | 1993-08-05 | Maschinenfabrik S. Rockstedt Gmbh | Multi-shaft continuously operating mixing and kneading machine for plasticisable compounds |
| CN102431177A (en) * | 2010-09-17 | 2012-05-02 | 富士胶片株式会社 | Polyester film, method for producing the same, back sheet for solar cells, and solar cell module |
| CN204340164U (en) * | 2014-02-28 | 2015-05-20 | 柳州市海达新型材料科技有限公司 | Plastic extruder extruding device |
-
2014
- 2014-02-28 CN CN201410071121.5A patent/CN104647723A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4935183A (en) * | 1984-04-23 | 1990-06-19 | Wenger Manufacturing, Inc. | Method of extruding material through a twin-screw extruder having respective conical nose screw sections |
| US4983114A (en) * | 1989-07-27 | 1991-01-08 | Wenger Manufacturing, Inc. | Inlet for twin screw extruder |
| WO1993014921A1 (en) * | 1992-01-31 | 1993-08-05 | Maschinenfabrik S. Rockstedt Gmbh | Multi-shaft continuously operating mixing and kneading machine for plasticisable compounds |
| CN102431177A (en) * | 2010-09-17 | 2012-05-02 | 富士胶片株式会社 | Polyester film, method for producing the same, back sheet for solar cells, and solar cell module |
| CN204340164U (en) * | 2014-02-28 | 2015-05-20 | 柳州市海达新型材料科技有限公司 | Plastic extruder extruding device |
Non-Patent Citations (1)
| Title |
|---|
| 沈言锦: "《冲压与塑压成形设备》", 28 February 2009 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107116718A (en) * | 2017-07-07 | 2017-09-01 | 中国石油大学(华东) | A kind of complete smooth twin-screw extrusion machine rotor with changeover portion |
| CN107116718B (en) * | 2017-07-07 | 2023-06-27 | 中国石油大学(华东) | Full-smooth double-screw extruder rotor with transition section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |