CN207465841U - A kind of sealing structure of extrusion machine screw rod tail - Google Patents
A kind of sealing structure of extrusion machine screw rod tail Download PDFInfo
- Publication number
- CN207465841U CN207465841U CN201721474243.4U CN201721474243U CN207465841U CN 207465841 U CN207465841 U CN 207465841U CN 201721474243 U CN201721474243 U CN 201721474243U CN 207465841 U CN207465841 U CN 207465841U
- Authority
- CN
- China
- Prior art keywords
- baffle
- axle sleeve
- stuffing box
- screw rod
- sealing
- 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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- Sealing Devices (AREA)
Abstract
The utility model is related to a kind of sealing structures of extrusion machine screw rod tail, include the stuffing box of rotary shaft, axle sleeve and built-in packing ring；The axle sleeve is built-in the rotary shaft；With being equipped with packing seal outside the axle sleeve inside the stuffing box, it is characterised in that：Baffle is equipped between the stuffing box and the axle sleeve；TZF combined seal rings are respectively arranged in the baffle and between the baffle and the axle sleeve outside；TGX sealing rings are connected between the baffle and the stuffing box.The utility model can reduce the operation expense of equipment while ensureing that screw rod tail seals the medium-tight effect strong to permeability.
Description
Technical field
The utility model is related to double（It is or single）Screw rod plastic extruder technology field more particularly to a kind of extruder screw tail
The sealing structure in portion.
Background technology
Under normal conditions, it is double（It is or single）It is the shape with packing seal that screw rod plastic, which squeezes out drive end unit screw shaft set and stuffing box,
What formula was completed, which can realize the sealing to solid-state and fused materials, but in the extrusion of reaction dissolvent monomer devolatilization
In, during using conventional sealing structure, the strong medium of permeability can leak at tail seal, often due to sealing mistake
Effect causes extruder frequently to overhaul, and replaces spare part, increases cost of equipment maintenance.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of extrusions for improving sealing effect, reducing maintenance cost
The sealing structure of machine screw rod tail.
To solve the above problems, a kind of sealing structure of extrusion machine screw rod tail described in the utility model, including rotation
The stuffing box of axis, axle sleeve and built-in packing ring；The axle sleeve is built-in the rotary shaft；The stuffing box inside and the axle sleeve
Outside is equipped with packing seal, it is characterised in that：Baffle is equipped between the stuffing box and the axle sleeve；In the baffle and institute
It states and is respectively arranged with TZF combined seal rings between baffle and the axle sleeve outside；It is close that TGX is connected between the baffle and the stuffing box
Seal.
The baffle is connected through a screw thread with the stuffing box.
The utility model has the following advantages compared with prior art：
In the utility model between stuffing box and axle sleeve be equipped with baffle, and baffle in and baffle and axle sleeve outside between,
Sealing ring is equipped between baffle and stuffing box, this structure when for permeability strong medium, using TZF combined seal rings and
The reinforced TFE and silicon rubber of TGX sealing rings realize liquid, solid-state and the fused materials extremely strong to permeability
Sealing, solve the problems, such as merely using packing seal it is possible that poor sealing, avoid the leakage of material, so as to
Reach reduces the operation expense of equipment while ensureing that screw rod tail seals the medium-tight effect strong to permeability.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the utility model partial enlarged view.
In figure：1-rotary shaft；2-axle sleeve；3-TGX sealing rings；4-stuffing box；5-baffle；6-TZF combination sealings
Circle.
Specific embodiment
As shown in Figure 1 and 2, a kind of sealing structure of extrusion machine screw rod tail, including rotary shaft 1, axle sleeve 2 and built-in filler
The stuffing box 4 of ring.
Rotary shaft 1 is housed in axle sleeve 2；4 inside of stuffing box is equipped with packing seal with 2 outside of axle sleeve；Stuffing box 4 and axle sleeve 2
Between be equipped with baffle 5；TZF combined seal rings 6 are respectively arranged in baffle 5 and between 2 outside of baffle 5 and axle sleeve；Baffle 5 and filler
TGX sealing rings 3 are connected between case 4.
Wherein：Baffle 5 is connected through a screw thread with stuffing box 4.
Baffle 5 itself is equipped with TZF combined seal rings 6, baffle 5 is made to be sealed with axle sleeve 2, while can mitigate rotary shaft 1 and generate
Vibration, material leakage can be prevented.TGX sealing rings 7 are connected between baffle 5 and stuffing box 4, can effectively prevent material from baffle 5 with filling out
The joint face material leakage of hopper 4.In addition to this, packing seal also ensures the sealing between stuffing box 4 and axle sleeve 2.
In practical application, can be used TGX sealing rings and packing seal is combined sealing or uses TZF combination sealings
Circle and packing seal are combined sealing or are carried out using TGX sealing rings, TZF combined seal rings and packing seal triple combination
Combination sealing.
Claims (2)
1. a kind of sealing structure of extrusion machine screw rod tail, including rotary shaft（1）, axle sleeve（2）With the stuffing box of built-in packing ring
（4）；The axle sleeve（2）It is built-in to have the rotary shaft（1）；The stuffing box（4）The internal and axle sleeve（2）Outside is equipped with filler
Sealing, it is characterised in that：The stuffing box（4）With the axle sleeve（2）Between be equipped with baffle（5）；The baffle（5）Interior and institute
State baffle（5）With the axle sleeve（2）TZF combined seal rings are respectively arranged between outside（6）；The baffle（5）With the stuffing box
（4）Between connect TGX sealing rings（3）.
2. a kind of sealing structure of extrusion machine screw rod tail as described in claim 1, it is characterised in that：The baffle（5）With
The stuffing box（4）It is connected through a screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721474243.4U CN207465841U (en) | 2017-11-08 | 2017-11-08 | A kind of sealing structure of extrusion machine screw rod tail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721474243.4U CN207465841U (en) | 2017-11-08 | 2017-11-08 | A kind of sealing structure of extrusion machine screw rod tail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207465841U true CN207465841U (en) | 2018-06-08 |
Family
ID=62262855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721474243.4U Expired - Fee Related CN207465841U (en) | 2017-11-08 | 2017-11-08 | A kind of sealing structure of extrusion machine screw rod tail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207465841U (en) |
-
2017
- 2017-11-08 CN CN201721474243.4U patent/CN207465841U/en not_active Expired - Fee Related
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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: 20180608 Termination date: 20201108 |