CN215703883U - Axial positioning sealing structure of double-screw extruder integral sleeve - Google Patents
Axial positioning sealing structure of double-screw extruder integral sleeve Download PDFInfo
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- CN215703883U CN215703883U CN202121911258.9U CN202121911258U CN215703883U CN 215703883 U CN215703883 U CN 215703883U CN 202121911258 U CN202121911258 U CN 202121911258U CN 215703883 U CN215703883 U CN 215703883U
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Abstract
The utility model discloses an axial positioning sealing structure of an integral sleeve of a double-screw extruder, which comprises a sleeve shell, wherein the inner wall of the sleeve shell is provided with an alloy integral sleeve matched with the sleeve shell, the sleeve shell and the alloy integral sleeve are locked at the axial position through a cylindrical pin, and a sealing plug for sealing is arranged in the cylindrical pin; by adopting the technical scheme, the counter bores on the alloy integral sleeve can be finished only by adopting electric spark electric shock, so that the difficulty of tapping on the alloy integral sleeve is solved; because the cylindrical hole is plugged by the sealing plug, the pressure of 35MPa can be borne, and the defects that the high-molecular material is easy to leak and cannot meet the sealing requirement when the high-molecular material is produced under high pressure are overcome.
Description
Technical Field
The utility model relates to an axial positioning structure, in particular to an axial positioning sealing structure of an integral sleeve of a double-screw extruder.
Background
At present, the fixing between the alloy integral sleeve and the shell of the integral sleeve barrel at home and abroad generally adopts the mode of integral sleeve tapping, bolt clearance hole processing on the shell and bolt fixing.
The original design needs to process threads on the alloy integral sleeve, and the alloy integral sleeve is high in material hardness and high in processing difficulty; after the material liquefaction of whole sleeve production in the actual production, the material can be followed fixing bolt and extruded, can't satisfy sealed requirement when producing macromolecular material needs high pressure.
SUMMERY OF THE UTILITY MODEL
The utility model provides an axial positioning sealing structure of a double-screw extruder integral sleeve, which is used for overcoming the defects of axial movement and shell sealing property between an alloy integral sleeve and a shell of the double-screw extruder integral sleeve in the prior art.
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model discloses an axial positioning sealing structure of an integral sleeve of a double-screw extruder, which comprises a sleeve shell, wherein an alloy integral sleeve matched with the sleeve shell is arranged on the inner wall of the sleeve shell, the sleeve shell and the alloy integral sleeve are locked at the axial position through a cylindrical pin, and a sealing plug for sealing is arranged in the cylindrical pin.
Furthermore, the outer wall of the cylinder shell is provided with a through hole with the same diameter as the cylindrical pin.
Furthermore, a counter bore with the same diameter as the through hole is arranged on the alloy integral sleeve, and the depth is less than 5 mm.
Furthermore, the through hole and the counter bore are in the same axis.
Furthermore, a sealing groove is formed in the sealing plug, the sealing groove is an annular triangular sealing groove, steel balls are arranged above the sealing plug, and the steel balls are punched into the sealing plug by a punch, so that the sealing groove is embedded into the shell of the barrel body.
The utility model has the following beneficial effects: by adopting the technical scheme, the counter bores on the alloy integral sleeve can be finished only by adopting electric spark electric shock, so that the difficulty of tapping on the alloy integral sleeve is solved; because the cylindrical hole is plugged by the sealing plug, the pressure of 35MPa can be borne, and the defects that the high-molecular material is easy to leak and cannot meet the sealing requirement when the high-molecular material is produced under high pressure are overcome.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line E of FIG. 1 in accordance with the present invention;
fig. 3 is an enlarged view of the utility model at F in fig. 2.
In the figure: 1. a sleeve housing; 2. an alloy integral sleeve; 3. sealing the plug; 4. a cylindrical pin; 5. a sealing groove; 6. and (5) steel balls.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
As shown in fig. 1-3, an axial positioning sealing structure of an integral sleeve of a twin-screw extruder comprises a sleeve housing 1, an alloy integral sleeve 2 matched with the sleeve housing 1 is arranged on the inner wall of the sleeve housing 1, the sleeve housing and the alloy integral sleeve are locked at axial positions through a cylindrical pin 4, and a sealing plug 3 for sealing is arranged in the cylindrical pin 4.
And the outer wall of the cylinder shell 1 is provided with a through hole with the same diameter as the cylindrical pin 4.
The alloy integral sleeve 2 is provided with a counter bore with the same diameter as the through hole, and the depth is less than 5 mm.
The through hole and the counter bore are in the same axis.
The sealing structure is characterized in that a sealing groove 5 is arranged in the sealing plug 3, the sealing groove 5 is an annular triangular sealing groove, a steel ball 6 is arranged above the sealing plug 3, and the steel ball 6 is punched into the sealing plug 3 by a punch, so that the sealing groove 5 is embedded into the barrel shell 1.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The axial positioning sealing structure of the whole sleeve of the double-screw extruder is characterized by comprising a sleeve shell, wherein an alloy whole sleeve matched with the sleeve shell is arranged on the inner wall of the sleeve shell, the sleeve shell and the alloy whole sleeve are locked at the axial position through a cylindrical pin, and a sealing plug for sealing is arranged in the cylindrical pin.
2. The axial positioning and sealing structure of the double-screw extruder integral sleeve barrel according to claim 1, characterized in that the outer wall of the barrel shell is provided with a through hole with the same diameter as the cylindrical pin.
3. The axial positioning and sealing structure of the double-screw extruder integral sleeve barrel according to claim 1, wherein the alloy integral sleeve barrel is provided with a counter bore with the same diameter as the through hole, and the depth is less than 5 mm.
4. The axial positioning and sealing structure of the double-screw extruder integral sleeve barrel as claimed in claim 1, wherein the through hole and the counter bore are coaxial.
5. The axial positioning and sealing structure of the double-screw extruder integral sleeve barrel according to claim 1, wherein the sealing plug is internally provided with a sealing groove which is an annular triangular sealing groove, steel balls are arranged above the sealing plug, and the steel balls are punched into the sealing plug by a punch so as to be embedded into the barrel shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121911258.9U CN215703883U (en) | 2021-08-16 | 2021-08-16 | Axial positioning sealing structure of double-screw extruder integral sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121911258.9U CN215703883U (en) | 2021-08-16 | 2021-08-16 | Axial positioning sealing structure of double-screw extruder integral sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215703883U true CN215703883U (en) | 2022-02-01 |
Family
ID=79998275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121911258.9U Active CN215703883U (en) | 2021-08-16 | 2021-08-16 | Axial positioning sealing structure of double-screw extruder integral sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215703883U (en) |
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2021
- 2021-08-16 CN CN202121911258.9U patent/CN215703883U/en active Active
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