CN209063505U - A kind of double screw extruder - Google Patents
A kind of double screw extruder Download PDFInfo
- Publication number
- CN209063505U CN209063505U CN201821914007.4U CN201821914007U CN209063505U CN 209063505 U CN209063505 U CN 209063505U CN 201821914007 U CN201821914007 U CN 201821914007U CN 209063505 U CN209063505 U CN 209063505U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- extrusion
- extrusion screw
- barrel
- axle
- 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
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of double screw extruders, are related to extruder technology field.The utility model includes barrel, barrel inner surface is fixed with support, branch base inner surface, which is rotatably assorted, two extrusion screw rods, two extrusion screw rods tightly engage, and barrel inner surface is fixed with footstock, and footstock includes squeezing out ring and two axle beds, two axle beds, which are symmetrically fixed on, squeezes out ring perimeter surface, axle bed inner surface is cooperated by bearing and extrusion screw rod, sealing axle sleeve is combined between axle bed inner surface and extrusion screw rod, sealing axle sleeve is movable sealing structure.The utility model passes through centering holder structure design, with extrusion screw rod one end fits, both ends bias will not be generated by making screw rod at work, be not in squeeze the problem of insufficient and transfer efficiency reduces to plastics, the quality that ensure that extrusion plastic improves the service life of extrusion screw rod.
Description
Technical field
The utility model belongs to extruder technology field, more particularly to a kind of double screw extruder.
Background technique
Extruder is the important mechanical equipment of high molecular material manufacture and processing and forming, and dividing has single screw extrusion machine, double spiral shells
Bar extruder, multi-screw extruder etc..Double screw extruder is grown up on the basis of single screw extrusion machine, due to having
Good charging performance is kneaded plasticizing capacity, exhaust performance, squeezes out the features such as stability, has been widely used for squeezing out at present
The processing and forming of product.Currently, two extrusion screw rods only have one end to be fixed by axle bed in double screw extruder, due to production process
Middle screw rod intermeshing generates extruding with plastics, and once for a long time, screw rod both ends are easy to produce bias, and then influence screw feeding effect
Rate also will affect the quality of extrusion plastic.
Utility model content
The purpose of this utility model is to provide a kind of double screw extruders, by being improved to extrusion screw rod structure,
And the footstock for shaft end centering and plastic extrusion is set, solve two extrusion screw rods two in existing double screw extruder
End is easy to produce bias, and then influences screw feeding efficiency, also will affect the quality problems of extrusion plastic.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
The utility model is a kind of double screw extruder, including barrel, the barrel inner surface are fixed with support, the branch
Base inner surface, which is rotatably assorted, two extrusion screw rods, and two extrusion screw rods tightly engage, and the barrel inner surface is fixed with
Footstock, described extrusion screw rod one end are rotatably assorted with footstock；
The footstock includes squeezing out ring and two axle beds, and two axle beds, which are symmetrically fixed on, squeezes out ring perimeter surface, the axis
Base inner surface is cooperated by bearing and extrusion screw rod, is combined with sealing axle sleeve between the axle bed inner surface and extrusion screw rod, institute
Stating sealing axle sleeve is movable sealing structure；
Two described extrusion screw rod one end are respectively and fixedly provided with the short axle matched with axle bed.
Further, the barrel discharge port is fixedly connected with filter by connector.
Further, the fixed having heaters of the barrel perimeter surface.
Further, the extrusion screw rod be fixed with short axle one end be tapered surface, the extrusion screw rod other end with it is short
Axis is concentric.
Further, the extrusion ring outer profile is annular shape, and the extrusion ring inner surface offers tapping channel, described
Tapping channel is circular conical surface, and the tapping channel portlet is identical as barrel discharge port size.
Further, the barrel discharge outlet offers the mounting groove matched with footstock.
The utility model has the following beneficial effects:
The utility model, with extrusion screw rod one end fits, produce screw rod will not at work by centering holder structure design
Raw both ends are eccentric, are not in squeeze the problem of insufficient and transfer efficiency reduces to plastics, ensure that the quality of extrusion plastic,
Improve the service life of extrusion screw rod.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of structural schematic diagram of double screw extruder of the utility model；
Fig. 2 is the structural schematic diagram of footstock；
Fig. 3 is the assembling structure schematic diagram of footstock and extrusion screw rod；
Fig. 4 is the structural schematic diagram of extrusion screw rod.
In attached drawing, parts list represented by the reference numerals are as follows:
1- barrel, 2- support, 3- extrusion screw rod, 4- footstock, 5- connector, 6- filter, 7- heater, 401- are squeezed out
Ring, 402- axle bed, 403- sealing axle sleeve.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-4, the utility model is a kind of double screw extruder, including barrel 1, and 1 inner surface of barrel is solid
Surely there is support 2,2 inner surface of support, which is rotatably assorted, there are two extrusion screw rods 3, and two extrusion screw rods 3 tightly engage, table in barrel 1
Face is fixed with footstock 4, and 3 one end of extrusion screw rod is rotatably assorted with footstock 4；
Footstock 4 includes squeezing out ring 401 and two axle beds 402, and two axle beds 402, which are symmetrically fixed on, squeezes out 401 perimeter surface of ring, axis
402 inner surfaces of seat are cooperated by bearing and extrusion screw rod 3, are combined with sealing axle sleeve between 402 inner surface of axle bed and extrusion screw rod 3
403, sealing axle sleeve 403 is movable sealing structure；
Two extrusion screw rods, 3 one end is respectively and fixedly provided with the short axle matched with axle bed 402.
Wherein, 1 discharge port of barrel is fixedly connected with filter 6 by connector 5.
Wherein, the fixed having heaters 7 of 1 perimeter surface of barrel.
Wherein, one end that extrusion screw rod 3 is fixed with short axle is tapered surface, and 3 other end of extrusion screw rod and short axle are concentric.
Wherein, squeezing out 401 outer profile of ring is annular shape, squeezes out 401 inner surface of ring and offers tapping channel, tapping channel is
Circular conical surface, tapping channel portlet are identical as 1 discharge port size of barrel.
Wherein, 1 discharge outlet of barrel offers the mounting groove matched with footstock 4.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. a kind of double screw extruder, including barrel (1), it is characterised in that: barrel (1) inner surface is fixed with support (2),
Support (2) inner surface, which is rotatably assorted, two extrusion screw rods (3), and barrel (1) inner surface is fixed with footstock (4),
Described extrusion screw rod (3) one end is rotatably assorted with footstock (4)；
The footstock (4) includes that extrusion ring (401) and two axle beds (402), two axle beds (402) are symmetrically fixed on extrusion ring
(401) perimeter surface, axle bed (402) inner surface are cooperated by bearing and extrusion screw rod (3), axle bed (402) inner surface
Sealing axle sleeve (403) are combined between extrusion screw rod (3)；Two described extrusion screw rod (3) one end are respectively and fixedly provided with and axle bed (402)
The short axle matched.
2. a kind of double screw extruder according to claim 1, which is characterized in that barrel (1) discharge port passes through company
It connects device (5) and is fixedly connected with filter (6).
3. a kind of double screw extruder according to claim 1, which is characterized in that barrel (1) perimeter surface is fixed with
Heater (7).
4. a kind of double screw extruder according to claim 1, which is characterized in that the extrusion screw rod (3) is fixed with short
One end of axis is tapered surface, and extrusion screw rod (3) other end and short axle are concentric.
5. a kind of double screw extruder according to claim 1, which is characterized in that extrusion ring (401) outer profile is
Annular shape, extrusion ring (401) inner surface offer tapping channel, and the tapping channel is circular conical surface.
6. a kind of double screw extruder according to claim 1, which is characterized in that barrel (1) discharge outlet opens up
There is the mounting groove matched with footstock (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821914007.4U CN209063505U (en) | 2018-11-20 | 2018-11-20 | A kind of double screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821914007.4U CN209063505U (en) | 2018-11-20 | 2018-11-20 | A kind of double screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209063505U true CN209063505U (en) | 2019-07-05 |
Family
ID=67099786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821914007.4U Expired - Fee Related CN209063505U (en) | 2018-11-20 | 2018-11-20 | A kind of double screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209063505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333970A (en) * | 2018-11-20 | 2019-02-15 | 佛山科学技术学院 | A kind of double screw extruder |
-
2018
- 2018-11-20 CN CN201821914007.4U patent/CN209063505U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333970A (en) * | 2018-11-20 | 2019-02-15 | 佛山科学技术学院 | A kind of double screw extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190705 Termination date: 20201120 |