CN208615278U - A kind of pre-wrapped PVDC connector - Google Patents
A kind of pre-wrapped PVDC connector Download PDFInfo
- Publication number
- CN208615278U CN208615278U CN201821239152.7U CN201821239152U CN208615278U CN 208615278 U CN208615278 U CN 208615278U CN 201821239152 U CN201821239152 U CN 201821239152U CN 208615278 U CN208615278 U CN 208615278U
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- pvdc
- bullet
- runner
- alien invasion
- wrapped
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of pre-wrapped PVDC connectors, including bullet and it is provided with the centre bore of bullet, the surface of the bullet offers the alien invasion runner for receiving extruder to squeeze out wrapping layer raw material, and alien invasion entrance is offered on alien invasion runner；The bullet bottom surface offers the interior facade runner of perforation alien invasion entrance, and the inner flow passage outlet of perforation alien invasion entrance is offered on interior facade runner simultaneously, so that wrapped resin flows to around cylindric PVDC melting along the convergence of the outer surface of bullet, it is fed forward together, it is not in contact with connector metal flow passage wall to realize PVDC subsequent, the generation being detained is reduced, the decomposition aging of PVDC is avoided, to ensure the continuous operation of production.
Description
Technical field
The utility model relates to PVDC extruder correlative technology fields, when PVDC is coextruded, PVDC extruder and mold phase
Connection body device even, specially a kind of pre-wrapped PVDC connector.
Background technique
DOW Chemical invents a kind of pre-wrapped co-extrusion die head, and working principle confirms that PVDC can be made in PVDC coextrusion
Mold continuous operating time is longer, reduces mold cleaning frequency, substantially increases production efficiency.However only rely on mould inside
Pre-wrapped come realize continuous operation be it is inadequate, due to the extruder device space arrangement needs, extruder is apart from co-extruding mould
With longer distance, longer runner will cause the time that PVDC flows through and extend, in PVDC transmission process, from extruder to
Then connector arrives mold again, molten resin all subjects higher 150 DEG C of even higher temperature, and according to DOW Chemical
From the point of view of the time of the PVDC decomposition of research and temperature curve, temperature and time can all cause the aging of PVDC；Simultaneously by it
The flowing velocity center and peripheral of melt is in the influence circular flow channel of the factors such as water passage surface degree of roughness, flow diameter size
Different, slower part is flowed in marginal portion, can be further exacerbated by aging.Largely tearing machine verifying open proves, meeting in runner
Carburization zone is formed, so that flow diameter attenuates, to influence the conveying of extrusion pressure and melt, production for a long time be there is also point
Object is solved, product quality and runing time are influenced.
Utility model content
The purpose of this utility model is to provide a kind of pre-wrapped PVDC connectors, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the utility model provides the following technical solutions:
A kind of pre-wrapped PVDC connector including bullet and is provided with the centre bore of bullet, the bullet
Surface offers the alien invasion runner for receiving extruder to squeeze out wrapping layer raw material, and offers alien invasion on alien invasion runner and enter
Mouthful；The bullet bottom surface offers the interior facade runner of perforation alien invasion entrance, and offers and pass through simultaneously on interior facade runner
The inner flow passage outlet of logical alien invasion entrance.
Preferably, the centre bore is that material squeezes out channel in PVDC layers of connector.
Preferably, the centre bore of the bullet bottom surface is higher by inner flow passage outlet distance 5-7mm.
Preferably, the inner flow passage outlet is that two half slots of the same size are connected to.
Preferably, the alien invasion runner is arc-shaped slot structure.
It is and existing compared with prior art, the utility model has the beneficial effects that this pre-wrapped PVDC connector structure is simple
There are technology, existing product to compare
1, runner length is adjustable, is conducive to extruder space layout；
2, it realizes PVDC inside runner not contact with metallic walls, avoids the generation of runner corrosion；
3, PVDC prevents the delay as caused by the factors such as flow path wall finish close to center flow, to solve carbonization point
The problem of solution and runner attenuate；
4, it creates conditions for PVDC continuous stabilization operation, improves production efficiency.
Detailed description of the invention
Fig. 1 is the utility model structural perspective；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the time and temperature relation that the PVDC of the DOW Chemical research in background technique is decomposed.
In figure: bullet 1, centre bore 2, alien invasion runner 3, alien invasion entrance 4, inner flow passage export 5, interior facade runner 6.
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 making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution:
A kind of pre-wrapped PVDC connector including bullet 1 and is provided with the centre bore 2 of bullet 1,1 bottom of bullet
The centre bore 2 in face is higher by inner flow passage and exports 5 distance 5-7mm, and the surface of bullet 1, which offers, receives extruder to squeeze out wrapping layer original
The alien invasion runner 3 of material, alien invasion runner 3 is arc-shaped slot structure, and alien invasion entrance 4 is offered on alien invasion runner 3；Cone
1 bottom surface of body offers the interior facade runner 6 of perforation alien invasion entrance 4, and it is outer vertical to offer perforation on interior facade runner 6 simultaneously
The inner flow passage outlet 5 of face entrance 4, inner flow passage outlet 5 are connected to for two half slots of the same size.
Wrapping layer raw material is extruded into from alien invasion runner 3 from extruder connector, is then entered from its alien invasion entrance 4, then
It is come out from inner flow passage outlet 5 later, exports 5 both sides runners through the inner flow passage and be distributed to around interior facade runner 6.Centre bore 2
It is that material squeezes out channel in PVDC layers of connector, is centrally located material around hole 2 and PVDC under the effect of the pressure together
Flow forward, to realize the effect of package.
One bullet 1 is added using PVDC connector runner start-up portion, passes through PVDC from the center of bullet, to
Preceding conveying, and the alien invasion runner 3 that bullet 1 opens up so that wrapped resin along bullet 1 outer surface convergence flow to it is cylindric
It around PVDC melt, is fed forward together, is not in contact, subtracts with connector metal flow passage wall subsequent to realize PVDC
The generation being detained less, avoids the decomposition aging of PVDC, to ensure the continuous operation of production, extends the available machine time.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of pre-wrapped PVDC connector, including bullet (1) and it is provided with the centre bore (2) of bullet (1), feature
Be: the surface of the bullet (1) offers the alien invasion runner (3) for receiving extruder to squeeze out wrapping layer raw material, and outer vertical
Alien invasion entrance (4) are offered on surface current road (3)；Bullet (1) bottom surface offers the interior vertical of perforation alien invasion entrance (4)
Surface current road (6), and the inner flow passage outlet (5) of perforation alien invasion entrance (4) is offered on interior facade runner (6) simultaneously.
2. a kind of pre-wrapped PVDC connector according to claim 1, it is characterised in that: the centre bore (2) is PVDC
Material squeezes out channel in layer connector.
3. a kind of pre-wrapped PVDC connector according to claim 1, it is characterised in that: bullet (1) bottom surface
Centre bore (2) is higher by inner flow passage outlet (5) distance 5-7mm.
4. a kind of pre-wrapped PVDC connector according to claim 1 or 3, it is characterised in that: the inner flow passage exports (5)
It is connected to for two half slots of the same size.
5. a kind of pre-wrapped PVDC connector according to claim 1, it is characterised in that: the alien invasion runner (3) is
Arc-shaped slot structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821239152.7U CN208615278U (en) | 2018-08-02 | 2018-08-02 | A kind of pre-wrapped PVDC connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821239152.7U CN208615278U (en) | 2018-08-02 | 2018-08-02 | A kind of pre-wrapped PVDC connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208615278U true CN208615278U (en) | 2019-03-19 |
Family
ID=65708564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821239152.7U Active CN208615278U (en) | 2018-08-02 | 2018-08-02 | A kind of pre-wrapped PVDC connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208615278U (en) |
-
2018
- 2018-08-02 CN CN201821239152.7U patent/CN208615278U/en active Active
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