CN206066891U - A kind of sebific duct molding plug - Google Patents
A kind of sebific duct molding plug Download PDFInfo
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- CN206066891U CN206066891U CN201621056638.8U CN201621056638U CN206066891U CN 206066891 U CN206066891 U CN 206066891U CN 201621056638 U CN201621056638 U CN 201621056638U CN 206066891 U CN206066891 U CN 206066891U
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- plug
- molding
- sebific duct
- central part
- ground floor
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Abstract
This utility model discloses a kind of sebific duct molding plug, for molding sebific duct, the sebific duct molding plug includes the ground floor portion of central part, extrusion molding on the central part and extrusion molding in the second layer portion in the ground floor portion, the central part is in cylinder, the cylinder of the ground floor portion and second layer portion in cross section for annulus.This utility model makes traditional monolayer into bilayer or multiple structure, such that it is able to being the quality of plug after greatly improving molding on extruder in existing former, reduce the ovality of plug, reduce the shrink mark of mandrel surface, without the need for the new forming production device of buying, the molding procedure of complexity will not also be increased, the increase of production cost is not result in.And the number of times that plug is used in turn can be increased, such that it is able to reduce its use cost, extend the service life of plug.
Description
Technical field
This utility model is related to sebific duct mould technical field, more particularly to a kind of sebific duct molding plug.
Background technology
The mainly molding by the way of an extrusion molding on a steel cord of traditional sebific duct molding plug, which makes work
Skill is simple, and operation is less.But during the plug that some are relatively large in diameter when molding, due to being relatively large in diameter for plug so that plug exists
After being extruded, during because extruding, the wall thickness of thermoplastic elastomer (TPE) is thicker, so as to be easily caused plug outer diameter parameters because of pyrocondensation
Unstable, mandrel surface produces shrink mark, causes the ovality of plug larger, in such as putting into practice, when a diameter of 12.45mm's of extrusion
During plug, the one-sided thickness for extruding plug is 5.305mm, and ovality reaches 0.15mm, it is impossible to meet existing sebific duct production
Demand.
And plug is used as the mould of sebific duct molding, which is to move back core by water under high pressure with sebific duct after curing, needs to make
Continuous hundreds of meter of plug is exited from sebific duct with very high hydraulic pressure, plug occurs deformation under water under high pressure effect unavoidably, uses
The more changes of number of times are also more obvious, learnt according to practical experience, and plug is used in turn 5 times or so in repetition and ellipse just occurs
The larger situation of degree.Therefore, existing plug service life is shorter, increased production cost.
To sum up, it is necessory to provide a kind of new sebific duct molding plug.
Utility model content
Technical problem to be solved in the utility model is to provide one kind and ovality can be effectively ensured and increases turnover
The sebific duct molding plug of access times.
To solve above-mentioned technical problem, this utility model provides a kind of sebific duct molding plug, for molding sebific duct, should
Sebific duct molding plug includes the ground floor portion of central part, extrusion molding on the central part and extrusion molding in described first
The second layer portion in layer portion, the central part is in cylinder, the cylinder of the ground floor portion and second layer portion in cross section for annulus.
The central part is steel wire rope.
The ground floor portion and second layer portion are made using thermoplastic elastic material.
The sebific duct molding plug also includes third layer portion of the extrusion molding in the second layer portion, the third layer
Cylinder of the portion in cross section for annulus.
The beneficial effects of the utility model are：The sebific duct molding plug makes traditional monolayer into bilayer or many
Rotating fields, such that it is able to be the quality of plug after greatly improving molding on extruder in existing former, reduce plug
Ovality, reduce the shrink mark of mandrel surface, without the need for new forming production device is purchased, will not also increase complexity into
Type operation, is not result in the increase of production cost.And the number of times that plug is used in turn can be increased, by 5 times original liftings
To existing 15 times, such that it is able to reduce its use cost, the utilization rate of plug is improved, extend the service life of plug.
Description of the drawings
Fig. 1 is the schematic cross-section of sebific duct molding plug disclosed in this utility model.
Specific embodiment
As shown in figure 1, the sebific duct molding plug includes central part 1, the ground floor portion being arranged on the central part 1
2 and the second layer portion 3 that is arranged in the ground floor portion 2.In cylinder, the central part 1 is mainly steel wire to the central part 1
Restrict, and the central part 1 can bend, the hardness of the central part 1 is unsuitable too small or excessive, because working as the central part 1
Hardness it is less when, which is easily caused during water under high pressure moves back core, and ovality is larger, and the hardness is bigger of the central part 1
When, as which is not flexible, wound it is difficult larger because inconvenience is wrapped on spool.The ground floor
Portion 2 is formed on the central part 1 by extrusion molding, cylinder of the ground floor portion 2 in cross section for annulus, and described first
Layer portion 2 is made using thermoplastic elastic material, and which is mainly styrenic thermoplastic elastomer, and (such as TES and SEBS, SEBS are
With polystyrene as end segment, the ethylene-butene copolymer for obtaining as intermediate elastic block linear three is hydrogenated with polybutadiene
Embedding copolymer).The second layer portion 3 is in hollow cylinder, and the second layer portion 3 takes shape in the appearance in the ground floor portion 2
On face, the second layer portion 3 is made using thermoplastic elastic material, and which is mainly styrenic thermoplastic elastomer (such as TES
With SEBS), the second layer portion 3 by the extrusion molding in ground floor portion 2, such that it is able to stable with the ground floor portion 2
It is combined together.In other embodiments, can in the second layer portion 3 molding third layer portion, and can by that analogy, by
It is similar with said structure in its structure, therefore will not be described here.
As shown in figure 1, the manufacture method of the sebific duct molding plug is comprised the following steps：
S1：The two ends of central part are connected with extruder so that central part is straightened；
S2：The extrusion molding ground floor portion 2 on central part so that ground floor portion 2 and being connected to that the central part is consolidated
Together；
S3：The extrusion molding second layer portion 3 in ground floor portion 2 so that second layer portion 3 is fixed with the ground floor portion 2 and connected
Connect.
In other embodiments, the molding third layer portion in S3 portions can be continued, due to its forming method and described second
Layer portion 3 is identical, therefore will not be described here.
The sebific duct molding plug makes traditional monolayer into bilayer or multiple structure, such that it is able to it is existing into
Type equipment is the quality of the plug after molding is greatly improved on extruder, reduces the ovality of plug, reduces the contracting of mandrel surface
Trace, without the need for new forming production device is purchased, will not also increase the molding procedure of complexity, be not result in production cost
Increase.And the number of times that plug is used in turn can be increased, lifted to existing 15 times by original 5 times, such that it is able to reduce
Its use cost, improves the utilization rate of plug, extends the service life of plug.
Above-mentioned technical proposal is only the explanation to this utility model embodiment, is not limitation of the utility model, all
Art personnel belong to protection domain of the present utility model according to the equivalent change carried out by creation of the present utility model.
Claims (4)
1. a kind of sebific duct molding plug, for molding sebific duct, it is characterised in that：The sebific duct molding plug include central part,
Ground floor portion of the extrusion molding on the central part and extrusion molding are in the second layer portion in the ground floor portion, the central part
In cylinder, the cylinder of the ground floor portion and second layer portion in cross section for annulus.
2. sebific duct molding plug according to claim 1, it is characterised in that：The central part is steel wire rope.
3. sebific duct molding plug according to claim 1, it is characterised in that：The ground floor portion and second layer portion adopt
Thermoplastic elastic material is made.
4. sebific duct molding plug according to claim 3, it is characterised in that：The sebific duct molding plug also includes squeezing
Go out the third layer portion taken shape in the second layer portion, cylinder of the third layer portion in cross section for annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621056638.8U CN206066891U (en) | 2016-08-31 | 2016-08-31 | A kind of sebific duct molding plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621056638.8U CN206066891U (en) | 2016-08-31 | 2016-08-31 | A kind of sebific duct molding plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206066891U true CN206066891U (en) | 2017-04-05 |
Family
ID=58438070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621056638.8U Active CN206066891U (en) | 2016-08-31 | 2016-08-31 | A kind of sebific duct molding plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206066891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107775922A (en) * | 2016-08-31 | 2018-03-09 | 盖茨液压技术（常州）有限公司 | A kind of sebific duct shaping plug |
-
2016
- 2016-08-31 CN CN201621056638.8U patent/CN206066891U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107775922A (en) * | 2016-08-31 | 2018-03-09 | 盖茨液压技术（常州）有限公司 | A kind of sebific duct shaping plug |
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