CN204235856U - A kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool - Google Patents
A kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool Download PDFInfo
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- CN204235856U CN204235856U CN201420589467.XU CN201420589467U CN204235856U CN 204235856 U CN204235856 U CN 204235856U CN 201420589467 U CN201420589467 U CN 201420589467U CN 204235856 U CN204235856 U CN 204235856U
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- inner glue
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- 239000003292 glue Substances 0.000 title claims abstract description 63
- 238000001125 extrusion Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 abstract description 7
- 238000002844 melting Methods 0.000 abstract description 6
- 230000008018 melting Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 13
- 238000007599 discharging Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 206010053615 Thermal burn Diseases 0.000 description 2
- 235000012438 extruded product Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- -1 PUR Compound Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
A kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool, the mouth mould comprising the core in rocket-shaped, be sleeved on mould on core and be sleeved on middle mould, described core is provided with inner chamber as compressed air channel, the inlet end of this core is provided with one for spacing hoop fin, external diameter in the middle part of core reduces gradually in an inclination conical surface, and extends a tubulose outlet side; The inner glue layer that gap between described core outer wall and middle mould inwall forms bell mouth shape extrudes die cavity, in this, the tail end of mould is provided with step position and closely engages with the hoop fin of core, and forms a straight inner glue layer buffer runner between the inwall of middle mould front end and the outer tube wall of core outlet side.Mould use procedure core mould is reduced by external force collision probability, and die life is long; Have buffer runner design, during melting co-extrusion, inner glue layer thickness is even, good concentricity, and has relaxed the extrusion stress of inner glue layer, promotes the steady flow forward of PUR; Shorten the die debugging time, enhance productivity.
Description
Technical field
The utility model relates to extrusion die field, particularly relates to a kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool.
Background technology
Pyrocondensation double wall casing belongs to a kind of high-end product in heat-shrinkable T bush, and the outer crosslinked polyolefin materials adopting high-quality, with the composite of a kind of high strength of internal layer PUR Compound Machining.Double-wall pipe is, by extrusion die, skin is adopted crosslinked polyolefin materials and internal layer PUR melting coextrusion mold.
Double-wall pipe extrusion die forms primarily of mouth mould, middle mould and core.Mould is arranged on production equipment, and various piece needs independent installment and debugging, and die debugging order must be that traditional double wall pipe mold installment and debugging expends more manpower and time, affects production efficiency to a great extent by inner and outer.At present, the inner glue layer thickness of pyrocondensation double wall casing is mainly regulated by the assemblage gap between middle mould and core, and existing general mould does not have PUR buffering sizing runner design, direct and outer crosslinked polyolefin materials melting co-extrusion after inner glue layer fusing.Therefore, the gap adjustment between core and middle mould, directly affects inner glue layer uniformity, easily produces the problem such as the inclined wall of glue-line, concentricity difference.
Core and middle mould are installed separately in process and easily collide, and affect the mold use life-span.And die surface electrodeposited material is very thin, in mold storing and use procedure, various piece easily collides and causes stress deformation, the possibility that coating material has being bruised or comes off, thus causes die life to shorten.Therefore, installing adjustment process needs operating personnel careful, and on the other hand, double-wall pipe core and middle mould are installed and are completed under high temperature 100 DEG C ~ 150 DEG C conditions, unavoidably potential safety hazard is there is in installation process, therefore the installment and debugging time is shorter, and the potential safety hazard that operator is subject to high temperature scald is more micro-.
Therefore, provide one can ensure extruded product quality, again can handled easily personnel installation and debugging pyrocondensation double wall casing extrusion die for production there is very positive meaning.
Utility model content
For overcoming the deficiencies in the prior art and Problems existing, the utility model provides a kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool, and can ensure extruded product quality, handled easily personnel installation and debugging, enhance productivity again.
The utility model is achieved through the following technical solutions: a kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool, the mouth mould comprising the core in rocket-shaped, be sleeved on mould on core and be sleeved on middle mould, described core is provided with inner chamber as compressed air channel, the inlet end of this core is provided with one for spacing hoop fin, external diameter in the middle part of core reduces gradually in an inclination conical surface, and extends a tubulose outlet side; The inner glue layer that gap between described core outer wall and middle mould inwall forms bell mouth shape extrudes die cavity, in this, the tail end of mould is provided with step position and closely engages with the hoop fin of core, and forms a straight inner glue layer buffer runner between the inwall of middle mould front end and the outer tube wall of core outlet side.
Further, described inner glue layer charging aperture is located at middle mould side.Preferably, described inner glue layer charging aperture number is two or more, is evenly located at middle mould side.
Further, described inner glue layer extrudes the inner glue layer buffer runner that die cavity comprises the straight charging runner of the close inner glue layer charging aperture be communicated with successively, the conical surface runner that the inclination conical surface of core is formed and middle mould front end.
Preferably, the tubulose outlet side of the described core outward opening from middle mould front end extends, and coordinates with the mouth mould be set on middle mould, forms double-walled co-extrusion buffer runner between the outer tube wall of this section of overhanging core outlet side and mouth mould inwall.
Further, described core inner chamber narrows in core medium position, makes the inlet end internal diameter of compressed air channel be greater than outlet side internal diameter.The inlet end of described core connects with feeder.
The utility model compared with the prior art, be fixed together integrally by core and middle mould, fixed by middle mould by core, and mould use procedure core mould is reduced by external force collision probability, and die life is long; Have buffer runner design, during melting co-extrusion, inner glue layer thickness is even, good concentricity, and has relaxed the extrusion stress of inner glue layer, promotes the steady flow forward of PUR, when inner glue layer to contact with outer material form co-extrusion time, bi-material seamless adhesion is together; When mould is installed, operator does not need carry out glue-line debugging again and can directly produce, and shortens the die debugging time, enhances productivity, and reduces the possibility that operator is subject to high temperature scald.
Accompanying drawing explanation
Fig. 1 is the decomposing state structural representation of core rod of the present utility model and middle mould;
Fig. 2 is the assembling schematic diagram of core rod of the present utility model and middle mould;
In figure: 1-core, mould in 2-, 3-inner chamber, 4-hoop fin, the 5-conical surface, 6-outlet side, 7-inner glue layer extrudes die cavity, 8-step position, 9-inner glue layer charging aperture, 10-charging runner, 11-conical surface runner, 12-inner glue layer buffer runner, 13-inner glue layer discharging opening.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be pointed out that specific embodiment described herein only for explaining the utility model, and be not used in restriction the utility model.
As shown in accompanying drawing 1,2, a kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool, the mouth mould comprising the core 1 in rocket-shaped, be sleeved on mould 2 on core and be sleeved on middle mould.Described core is provided with inner chamber 3 as compressed air channel, and the inlet end of this core is provided with one for spacing hoop fin 4, and this inlet end connects with feeder; External diameter in the middle part of core reduces gradually in an inclination conical surface 5, and extends a tubulose outlet side 6.Preferably, described core inner chamber 3 narrows in core medium position, makes the inlet end internal diameter of compressed air channel be greater than outlet side internal diameter.
Described middle mould 2 is placed on core 1, and the outline of middle mould inner surface contour and core matches, and the inner glue layer making the gap between core outer wall and middle mould inwall form bell mouth shape extrudes die cavity 7.In this, the tail end of mould is provided with step position 8 and closely engages with the hoop fin 4 of core, and the hoop fin of core is butted on step position 8, makes middle mould relative with between core fixing.Middle mould and core are fixed together into as a whole, and core is fixed by middle mould.After both are mounted with, when mould is installed, operator does not need to carry out glue-line debugging again, shortens the die debugging time, enhances productivity.Mould use procedure core mould is reduced by external force collision probability, and die life is long, and core is fixed in middle mould, mold electroplating material layer difficult drop-off.
Described inner glue layer charging aperture 9 is located at middle mould 2 side.Preferably, described inner glue layer charging aperture 9 number is two or more, is evenly located at middle mould 2 side.
A straight inner glue layer buffer runner 12 is formed between the inwall of middle mould front end and the outer tube wall of core outlet side.This inner glue layer buffer runner 12 makes in melting co-extrusion process, the thickness of inner glue layer is even, good concentricity, and the design of inner glue layer buffer runner has relaxed the extrusion stress of inner glue layer, promote the steady flow forward of PUR, when inner glue layer contacts co-extrusion with outer material, bi-material can form seamless adhesion.
Preferably, the tubulose outlet side 6 of described core also stretches out from the opening of middle mould front end (i.e. inner glue layer discharging opening 13), coordinate with the mouth mould be placed on middle mould, form a straight double-walled co-extrusion buffer runner cushioned for inner glue layer and outer material melting co-extrusion between the outer tube wall of this section of overhanging core outlet side and mouth mould inwall, be beneficial to the seamless adhesion of bi-material.
Described inner glue layer is extruded die cavity 7 and is comprised inner glue layer buffer runner 12 near the straight charging runner 10 of inner glue layer charging aperture, the conical surface runner 11 that the inclination conical surface of core is formed and middle mould front end.Described charging runner 10, conical surface runner 11, inner glue layer buffer runner 12 are communicated with successively.In PUR warp, the inner glue layer charging aperture 9 of mould 2 side enters the charging runner 10 that inner glue layer extrudes die cavity 7, conical surface runner 11 is arrived after steady flow forward, now, the cross sectional area that inner glue layer extrudes die cavity 7 reduces gradually, the flow velocity of PUR increases, after arriving inner glue layer buffer runner 12, flow velocity tends to be steady, and then therefrom the inner glue layer discharging opening 13 of mould front end is extruded and is bonded into one with outer material.In PUR extrusion, core inner chamber passes into compressed air by the feeder of inlet end, and compressed air sprays to make inner glue layer shaping, cooling smoothly from the outlet side of core.
The content mentioned in above-described embodiment is not to restriction of the present utility model, and under the prerequisite not departing from inventive concept of the present utility model, any apparent replacement is all within protection domain of the present utility model.
Claims (7)
1. a double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool, the mouth mould comprising the core (1) in rocket-shaped, be sleeved on the middle mould (2) on core and be sleeved on middle mould, it is characterized in that: described core is provided with inner chamber (3) as compressed air channel, the inlet end of this core is provided with one for spacing hoop fin (4), external diameter in the middle part of core reduces gradually in an inclination conical surface (5), and extends a tubulose outlet side (6); The inner glue layer that gap between described core outer wall and middle mould inwall forms bell mouth shape extrudes die cavity (7), in this, the tail end of mould is provided with step position (8) and closely engages with the hoop fin (4) of core, and forms a straight inner glue layer buffer runner (12) between the inwall of middle mould front end and the outer tube wall of core outlet side.
2. double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool according to claim 1, is characterized in that: described inner glue layer charging aperture (9) is located at middle mould (2) side.
3. double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool according to claim 2, is characterized in that: described inner glue layer charging aperture (9) number is two or more, is evenly located at middle mould (2) side.
4. the double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool according to Claims 2 or 3, is characterized in that: described inner glue layer extrudes the inner glue layer buffer runner (12) that die cavity (7) comprises the straight charging runner (10) of the close inner glue layer charging aperture be communicated with successively, the conical surface runner (11) that the inclination conical surface of core is formed and middle mould front end.
5. double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool according to claim 1, it is characterized in that: the outward opening of tubulose outlet side (6) from middle mould (2) front end of described core extends, coordinate with the mouth mould be set on middle mould, between the outer tube wall of this section of overhanging core outlet side and mouth mould inwall, form double-walled co-extrusion buffer runner.
6. double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool according to claim 1, is characterized in that: described core inner chamber (3) is narrowed in core medium position, makes the inlet end internal diameter of compressed air channel be greater than outlet side internal diameter.
7. double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool according to claim 1, is characterized in that: the inlet end of described core (1) connects with feeder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589467.XU CN204235856U (en) | 2014-10-13 | 2014-10-13 | A kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589467.XU CN204235856U (en) | 2014-10-13 | 2014-10-13 | A kind of double wall heat Heat-Shrinkable Tubings inner glue layer no-mould adjusted tool |
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| CN204235856U true CN204235856U (en) | 2015-04-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160652A (en) * | 2017-06-15 | 2017-09-15 | 深圳市沃尔核材股份有限公司 | Multi-layer co-extruded mouth mold |
| CN109693338A (en) * | 2018-11-05 | 2019-04-30 | 佳禾智能科技股份有限公司 | A kind of molding die and formation system of the neckstrap original wire rod of neck hanging type earphone |
| CN110385845A (en) * | 2019-07-25 | 2019-10-29 | 台州市鸿运胶管有限公司 | A kind of double tube extrusion die |
| CN112384352A (en) * | 2018-07-03 | 2021-02-19 | 康宁股份有限公司 | Extrusion device with fixed profile |
| CN113043571A (en) * | 2021-04-12 | 2021-06-29 | 临海伟星新型建材有限公司 | Ultra-high molecular weight polyethylene pipe co-extrusion die and method |
-
2014
- 2014-10-13 CN CN201420589467.XU patent/CN204235856U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160652A (en) * | 2017-06-15 | 2017-09-15 | 深圳市沃尔核材股份有限公司 | Multi-layer co-extruded mouth mold |
| CN107160652B (en) * | 2017-06-15 | 2024-04-05 | 深圳市沃尔核材股份有限公司 | Multilayer coextrusion die |
| CN112384352A (en) * | 2018-07-03 | 2021-02-19 | 康宁股份有限公司 | Extrusion device with fixed profile |
| CN109693338A (en) * | 2018-11-05 | 2019-04-30 | 佳禾智能科技股份有限公司 | A kind of molding die and formation system of the neckstrap original wire rod of neck hanging type earphone |
| CN110385845A (en) * | 2019-07-25 | 2019-10-29 | 台州市鸿运胶管有限公司 | A kind of double tube extrusion die |
| CN110385845B (en) * | 2019-07-25 | 2021-04-02 | 台州市鸿运胶管有限公司 | Double-layer rubber pipe extrusion die |
| CN113043571A (en) * | 2021-04-12 | 2021-06-29 | 临海伟星新型建材有限公司 | Ultra-high molecular weight polyethylene pipe co-extrusion die and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231023 Address after: 523000 Po Po Industrial Zone, two industrial park, Fumin industrial estate, Dalang Town, Dongguan, Guangdong Patentee after: CYG ELECTRONIC (DONGGUAN) Co.,Ltd. Address before: 523000 Sanlian science and Technology Park, Jingxiang village, Liaobu Town, Dongguan City, Guangdong Province Patentee before: DONGGUAN SALIPT CO.,LTD. |