CN207808426U - A kind of two stages of compression plastic pipe extruder head - Google Patents
A kind of two stages of compression plastic pipe extruder head Download PDFInfo
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- CN207808426U CN207808426U CN201721844661.8U CN201721844661U CN207808426U CN 207808426 U CN207808426 U CN 207808426U CN 201721844661 U CN201721844661 U CN 201721844661U CN 207808426 U CN207808426 U CN 207808426U
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- die
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- plastic pipe
- pipe extruder
- head
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Abstract
The utility model is related to pipe extruder head technical fields, especially a kind of two stages of compression plastic pipe extruder head, including extrusion die and compressor head body, extrusion die includes mouth mold body, preceding die body and rear die body, mouth mold body, preceding die body, die body collectively forms molten material channel with compressor head body afterwards, the damping block for making compressor head body form second-compressed in molten material channel is additionally provided on compressor head body, the effective solution contradiction of existing extrusion die compression ratio and extrusion die volume, eliminate the shunting support wire of tube extrusion, the problem of ensureing tubing intensity problem.
Description
Technical field
The utility model is related to pipe extruder head technical field, especially a kind of two stages of compression plastic pipe extruder
Head.
Background technology
In the production of plastic pipe, extruder head mould structure pattern is divided into stent-type extrusion die, helical head
Mold, basket extrusion die.Stent-type extrusion die as shown in Figure 1 is simple in structure, pressure is evenly distributed, self-cleaning is good, disadvantage
It is to be also easy to produce shunting support wire；Helical head mold, the material of melting, which is spinned in spiral internal body portion along helicla flute, to be moved,
It is moved in a straight line in cavity between conveyor screw and die body inner wall, advantage is not generate shunting support wire, the disadvantage is that self-cleaning is poor；Basket
Formula extrusion die is intermediate entering of the fused materials from porous tube (being known as basket), enters mould from many apertures being distributed on barrel
Chamber, its advantage is that shunting support wire is not generated, the disadvantage is that self-cleaning is very poor.
The materials such as hard polyvinyl chloride (PVC-U), chliorinated polyvinyl chloride (PVC-C) are because its viscosity is big, poor fluidity, is easy to divide
The features such as solution, can only use stent-type extrusion die in production.In order to ensure that the tubing of production possesses enough intensity, stream
It should be fully compressed after spreader to eliminate shunting support wire, this requires the designs of mold enough compression ratio (types
The ratio of chamber maximum area and minimum area), it generally should ensure that 10 or more.However, the increase with caliber and tube wall thickness
Increase, it is ensured that 10 or more compression ratio will become extremely difficult, can not be connect because the volume of extrusion die will arrive greatly
The degree received.
Utility model content
The technical problems to be solved in the utility model is：In order to solve the increase of existing production caliber increase and tube wall thickness
Plastic pipe when, extrusion die compression ratio and extrusion die volume there are contradictions, it is difficult to eliminate the shunting branch of tube extrusion
The problem of stringing, guarantee tubing intensity, the utility model provides a kind of two stages of compression plastic pipe extruder head, including head
Mold and compressor head body, extrusion die include mouth mold body, preceding die body and rear die body, mouth mold body, preceding die body, rear die body and pressure
Contracting handpiece body collectively forms molten material channel, and being additionally provided on compressor head body makes compressor head body form secondary pressure in molten material channel
The damping block of contracting, the effective solution contradiction of existing extrusion die compression ratio and extrusion die volume, eliminates tube extrusion
The problem of shunting support wire, ensureing tubing intensity problem.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of two stages of compression plastic pipe extruder head, including extrusion die and compressor head body, the extrusion die packet
Mouth mold body, preceding die body and rear die body are included, the mouth mold body, preceding die body, rear die body collectively form molten with the compressor head body
Expect channel, the resistance for making the compressor head body form second-compressed in the molten material channel to be additionally provided on the compressor head body
Buddhist nun's block.
Specifically, the compressor head body includes core block, core model seat and current divider, one end of the core model seat and institute
Core block connection is stated, the other end is connect with the current divider, and the damping block setting seats against the nearly preceding die body in the core model
At one end.
Specifically, the damping block is in outwardly projecting arc shape, and the damping block concaves close to core model seat end
It falls into and also forms a release chamber with side wall in the mouth mold body.
Specifically, it is additionally provided with spreader between the preceding die body and the rear die body.
Specifically, the one end of the current divider far from the core model seat is provided with torpedo head.
The utility model has the beneficial effects that：The utility model provides a kind of two stages of compression plastic pipe extruder head,
Including extrusion die and compressor head body, extrusion die includes mouth mold body, preceding die body and rear die body, mouth mold body, preceding die body, after
Die body collectively forms molten material channel with compressor head body, and being additionally provided on compressor head body makes compressor head body shape in molten material channel
At the damping block of second-compressed, the effective solution contradiction of existing extrusion die compression ratio and extrusion die volume eliminates pipe
Material squeeze out shunting support wire, ensure tubing intensity the problem of problem.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the structural schematic diagram of the utility model.
In figure：1. extrusion die, 2. compressor head bodies, 3. molten material channels, 10. damping blocks, 11. mouth mold bodies, mould before 12.
Body, die body after 13., 14. release chambers, 20. core blocks, 21. core model seats, 22. current dividers, 23. spreaders, 24. torpedo heads.
Specific implementation mode
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
Embodiment 1
Fig. 2 is the two stages of compression plastic pipe extruder head of the utility model design, including extrusion die 1 and compressor head
Body 2, extrusion die 1 include mouth mold body 11, preceding die body 12 and rear die body 13, mouth mold body 11, preceding die body 12, rear die body 13 and pressure
Contracting handpiece body 2 collectively forms molten material channel 3, and being additionally provided on compressor head body 2 makes compressor head body 2 be formed in molten material channel 3
The damping block 10 of second-compressed, compressor head body 2 include core block 20, core model seat 21 and current divider 22, the core model seat 21
One end is connect with core block 20, and the other end is connect with current divider 22, and damping block 10 is arranged in core model seat 21 by nearby die body 12
At one end, damping block 10 are in outwardly projecting arc shape, and damping block 10 is recessed inwardly and the mouth close to 21 end of core model seat
11 madial wall of die body also forms a release chamber 14, and spreader 23 is additionally provided between preceding die body 12 and rear die body 13, and current divider 22 is remote
One end of off-chip die holder 21 is provided with torpedo head 24.
Operation principle：It is equipped with damping block 10 on core model seat 21, makes the material by spreader 23 using damping block 10
When since cavity area reduces generate compression, after 10 rear profile cavity area of damping block amplify again and become smaller, make its generation
Second-compressed is extruded by the gap between mouth mold body 11 and core block 20, and the material of extrusion obtains very after two stages of compression
Good fusion eliminates material because of the fusion line generated by shunting holder.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
It is not limited to the contents of the specification with novel technical scope, it is necessary to which its technology is determined according to right
Property range.
Claims (5)
1. a kind of two stages of compression plastic pipe extruder head, it is characterised in that：Including extrusion die (1) and compressor head body (2),
The extrusion die (1) includes mouth mold body (11), preceding die body (12) and rear die body (13), the mouth mold body (11), preceding die body
(12), rear die body (13) collectively forms molten material channel (3) with the compressor head body (2), is also set on the compressor head body (2)
There is the damping block (10) for making the compressor head body (2) form second-compressed in the molten material channel (3).
2. a kind of two stages of compression plastic pipe extruder head as described in claim 1, it is characterised in that：The compressor head body
(2) include core block (20), core model seat (21) and current divider (22), one end and the core block of the core model seat (21)
(20) it connects, the other end is connect with the current divider (22), and damping block (10) setting is in the core model seat (21) close to institute
State the at one end of preceding die body (12).
3. a kind of two stages of compression plastic pipe extruder head as claimed in claim 2, it is characterised in that：The damping block (10)
In outwardly projecting arc shape, the damping block (10) is recessed inwardly and the mouth mold body (11) close to the core model seat (21) end
Madial wall also forms a release chamber (14).
4. a kind of two stages of compression plastic pipe extruder head as claimed in claim 3, it is characterised in that：The preceding die body (12)
It is additionally provided with spreader (23) between the rear die body (13).
5. a kind of two stages of compression plastic pipe extruder head as claimed in claim 4, it is characterised in that：The current divider (22)
One end far from the core model seat (21) is provided with torpedo head (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721844661.8U CN207808426U (en) | 2017-12-25 | 2017-12-25 | A kind of two stages of compression plastic pipe extruder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721844661.8U CN207808426U (en) | 2017-12-25 | 2017-12-25 | A kind of two stages of compression plastic pipe extruder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207808426U true CN207808426U (en) | 2018-09-04 |
Family
ID=63329719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721844661.8U Active CN207808426U (en) | 2017-12-25 | 2017-12-25 | A kind of two stages of compression plastic pipe extruder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207808426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948822A (en) * | 2019-11-15 | 2020-04-03 | 广东威立瑞科技有限公司 | HDPE pipe mould |
-
2017
- 2017-12-25 CN CN201721844661.8U patent/CN207808426U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948822A (en) * | 2019-11-15 | 2020-04-03 | 广东威立瑞科技有限公司 | HDPE pipe mould |
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