CN105773944A - Totally-wrapping co-extrusion die for plastic profile - Google Patents
Totally-wrapping co-extrusion die for plastic profile Download PDFInfo
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- CN105773944A CN105773944A CN201410812955.7A CN201410812955A CN105773944A CN 105773944 A CN105773944 A CN 105773944A CN 201410812955 A CN201410812955 A CN 201410812955A CN 105773944 A CN105773944 A CN 105773944A
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Abstract
The invention discloses a totally-wrapping co-extrusion die for a plastic profile. The totally-wrapping co-extrusion die comprises an opening die I, an opening die II, a converging plate, a support plate, a diversion cone fixing plate, a transition plate and a die body. A diversion cone is fixed into the diversion cone fixing plate and is connected with a core body. A color paint feeding port is formed in the opening die II. Two converging pressurizing cavities are formed in the positions, located on the two sides of a cavity of the core body, in the opening die II. The color paint feeding port extends downwards to be provided with an upper conveying runner and a lower conveying runner. Two upper distribution runners are led out of the upper conveying runner to be led to the converging pressurizing cavities in the two sides of the cavity of the core body. Two lower distribution runners are led out of the lower conveying runner to be led to the converging pressurizing cavities in the two sides of the cavity of the core body. The upper distribution runners and the lower distribution runners are converged at the positions of the converging pressurizing cavities in the two sides of the cavity of the core body and led to the cavities. The widths and the depths of the upper distribution runners are gradually reduced, and the widths and the depths of the lower distribution runners are gradually reduced. The totally-wrapping co-extrusion die is simple and compact in structure, good in profile extrusion effect and high in compatibility and is mainly used for molding and machining of color plastic profiles.
Description
Technical field
The present invention relates to extrusion die technical field, especially a kind of full coated coextrusion mould of plastic irregular profile.
Background technology
The colored full raw material being coated with co-extrusion mainly has ASA, PMMA, ABS, PVC etc., the wherein heat stability of the material such as ASA, ABS and good fluidity, material not easily occurs in extrusion that in runner decomposition is charred phenomenon, and the designing requirement of the runner performance of its full coated coextrusion mould is not high；By contrast, PVC material is easiest in mold runner to produce decompose and be charred situation, once occur being charred, the material being charred can be bonded in mold cavity surface, just start be that one or more yellow line occurs in Surface of profile, then can be further exacerbated by, area increases, hinder normal discharging, so in use to shut down frequently, form removal, cleaning, could install again after polishing, waste time and energy, so the designing requirement of the co-extruding flow channel of PVC material and machining accuracy are significantly high, especially colored PVC expects full coated coextrusion mould, and existing colored PVC expects that its colored material charging aperture of full coated coextrusion mould (referring to Fig. 1 Fig. 4) is arranged on cylinder manifold, runner distance is long, there is sharp turn and dead angle, structure is complicated, material is easily detained and is charred；There is dead angle in conveying flow passage, Flow of Goods and Materials is not smooth；The distribution wide grade of runner is deep, there is the pressure loss, and end has sudden change, easily cause material lagging；Supercharging place of confluxing is that circular arc is arranged, and is easily generated delay；There is also die head huge, the problem of the bad arrangement of screw hole simultaneously.
Summary of the invention
The purpose of the present invention is aiming at existing colored PVC and expects the problems referred to above that full coated coextrusion mould exists, it is provided that a kind of simple and compact for structure, section bar extrusion is effective, the compatible high full coated coextrusion mould of plastic irregular profile.
The concrete scheme of the present invention is: a kind of full coated coextrusion mould of plastic irregular profile, include the mouth die I together of being linked in sequence successively, mouth die II, cylinder manifold, supporting plate, the fixing plate of spreader, rebound and die body, it is fixed with spreader in the middle of the fixing intralaminar part of spreader, it is connected with spreader and is connected to core body, it is characterized in that: in described mouth die II, offer colored material charging aperture, be positioned at the both sides of core body die cavity in mouth die II and be provided with two and converge booster cavity；Extend downwards from colour material charging aperture and be provided with two round and smooth conveying flow passages, respectively go up conveying flow passage and lower conveying flow passage, what upper conveying flow passage drew that two round and smooth upper distribution runners respectively lead to core body die cavity both sides converges booster cavity, lower conveying flow passage is drawn two round and smooth lower distribution runners and is respectively led to the booster cavity that converges of core body die cavity both sides, and upper and lower distribution runner converges at the booster cavity place that converges of core body die cavity both sides and leads to die cavity respectively；The width of described upper and lower distribution runner and the degree of depth all reduce setting from the booster cavity that converges being exported to both sides of each corresponding conveying flow passage in gradual change type；Described booster cavity both sides of converging are that inclined-plane is arranged, and lean now to one side, then to the other fillet in bottom；The above upper and lower conveying flow passage, up and down distribute runner, converge booster cavity all together with colour material charging aperture concentrated setting in mouth die II.
In order to reduce material resistance in conveying flow passage, the cross section of heretofore described upper and lower conveying flow passage is respectively provided with rectangular, and the drift angle rounding of rectangle is arranged.
The present invention is acquired following beneficial effect:
1) colored material charging aperture and whole runner are arranged in one piece of template mouth die II, and runner open portion area is little, reduces the buffer brake between two pieces of templates, not easily material leakage.
2) conveying flow passage cusp improves up and down, and stream running resistance reduces.
3) distribution width of flow path and degree of depth gradual change reduce up and down, are absent from sudden change, and runner cumulative volume reduces.
4) converging booster cavity both sides and be set to inclined-plane, leans now to one side, then to the other fillet in bottom, it is possible to make stream advance more smooth and easy.
5) mould compact overall structure, die head volume is avoided excessively huge, simultaneously that the compatibility of co-extrusion material is better.
Accompanying drawing explanation
Fig. 1 is the main apparent direction structural representation of mouth die II in existing full coated coextrusion mould；
Fig. 2 is the main apparent direction structural representation of cylinder manifold in existing full coated coextrusion mould；
Fig. 3 is cutting structural representation in A-A place in Fig. 1；
Fig. 4 converges booster cavity sectional schematic diagram in existing full coated coextrusion mould；
Fig. 5 is population structure schematic diagram of the present invention；
Fig. 6 is present configuration exploded perspective view；
Fig. 7 is the main apparent direction structural representation of mouth die II in the present invention；
Fig. 8 is the main apparent direction structural representation of cylinder manifold in the present invention；
Fig. 9 is cutting structural representation in B-B place in Fig. 7；
Figure 10 converges booster cavity sectional schematic diagram in the present invention.
In figure: 1 mouth die II, 2 conveying flow passages, 3 distribution runners, 4 colored material charging apertures, 5 cylinder manifolds, 6 core bodys, 7 spreaders, 8 mouth die I, 9 supporting plates, 10 spreaders fix plate, 11 rebounds, 12 die bodys, conveying flow passage on 13, runner, 15 times conveying flow passages, 16 times distribution runners are distributed on 14.
Detailed description of the invention
Referring to Fig. 5-Figure 10, the present invention is a kind of full coated coextrusion mould of plastic irregular profile, include the mouth die I 8 together of being linked in sequence successively, mouth die II 1, cylinder manifold 5, supporting plate 9, the fixing plate 10 of spreader, rebound 11 and die body 12, it is fixed with spreader 7 in the middle of the fixing intralaminar part of spreader, it is connected with spreader and is connected to core body 6, it is characterized in that: in described mouth die II, offer colored material charging aperture 4, be positioned at the both sides of core body die cavity in mouth die II and be provided with two and converge booster cavity；Extend downwards from colour material charging aperture and be provided with two round and smooth conveying flow passages, respectively go up conveying flow passage 13 and lower conveying flow passage 15, what upper conveying flow passage drew that two round and smooth upper distribution runners 14 respectively lead to core body die cavity both sides converges booster cavity, lower conveying flow passage is drawn two round and smooth lower distribution runners 16 and is respectively led to the booster cavity that converges of core body die cavity both sides, and upper and lower distribution runner converges at the booster cavity place that converges of core body die cavity both sides and leads to die cavity respectively；The width of described upper and lower distribution runner and the degree of depth all reduce setting from the booster cavity that converges being exported to both sides of each corresponding conveying flow passage in gradual change type；Described booster cavity both sides of converging are that inclined-plane is arranged, and lean now to one side, then to the other fillet in bottom；The above upper and lower conveying flow passage, up and down distribute runner, converge booster cavity all together with colour material charging aperture concentrated setting in mouth die II.
In order to reduce material resistance in conveying flow passage, described in the present embodiment, the cross section of upper and lower conveying flow passage 13,15 is respectively provided with rectangular, and the drift angle rounding of rectangle is arranged.
Claims (2)
1. the full coated coextrusion mould of plastic irregular profile, include the mouth die I together of being linked in sequence successively, mouth die II, cylinder manifold, supporting plate, the fixing plate of spreader, rebound and die body, it is fixed with spreader in the middle of the fixing intralaminar part of spreader, it is connected with spreader and is connected to core body, it is characterized in that: in described mouth die II, offer colored material charging aperture, be positioned at the both sides of core body die cavity in mouth die II and be provided with two and converge booster cavity；Extend downwards from colour material charging aperture and be provided with two round and smooth conveying flow passages, respectively go up conveying flow passage and lower conveying flow passage, what upper conveying flow passage drew that two round and smooth upper distribution runners respectively lead to core body die cavity both sides converges booster cavity, lower conveying flow passage is drawn two round and smooth lower distribution runners and is respectively led to the booster cavity that converges of core body die cavity both sides, and upper and lower distribution runner converges at the booster cavity place that converges of core body die cavity both sides and leads to die cavity respectively；The width of described upper and lower distribution runner and the degree of depth all reduce setting from the booster cavity that converges being exported to both sides of each corresponding conveying flow passage in gradual change type；Described booster cavity both sides of converging are that inclined-plane is arranged, and lean now to one side, then to the other fillet in bottom；The above upper and lower conveying flow passage, up and down distribute runner, converge booster cavity all together with colour material charging aperture concentrated setting in mouth die II.
2. a kind of full coated coextrusion mould of plastic irregular profile according to claim 1, it is characterised in that: the cross section of described upper and lower conveying flow passage is respectively provided with rectangular, and the drift angle rounding of rectangle is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812955.7A CN105773944A (en) | 2014-12-24 | 2014-12-24 | Totally-wrapping co-extrusion die for plastic profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812955.7A CN105773944A (en) | 2014-12-24 | 2014-12-24 | Totally-wrapping co-extrusion die for plastic profile |
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|---|---|
| CN105773944A true CN105773944A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410812955.7A Pending CN105773944A (en) | 2014-12-24 | 2014-12-24 | Totally-wrapping co-extrusion die for plastic profile |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203409A (en) * | 2018-08-20 | 2019-01-15 | 河北联捷同创装饰材料有限公司 | A kind of production line and its production technology of wood-plastic co-extrusion section bar |
| CN111119442A (en) * | 2020-01-21 | 2020-05-08 | 安徽森泰木塑科技地板有限公司 | Floor capable of preventing water accumulation and foaming |
| CN112192823A (en) * | 2020-09-17 | 2021-01-08 | 江苏亨通光电股份有限公司 | Double-heterochromatic strip sheath and extrusion die thereof |
| CN113320116A (en) * | 2021-06-18 | 2021-08-31 | 无锡井上华光汽车部件有限公司 | Variable-section extrusion die and extrusion method |
-
2014
- 2014-12-24 CN CN201410812955.7A patent/CN105773944A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203409A (en) * | 2018-08-20 | 2019-01-15 | 河北联捷同创装饰材料有限公司 | A kind of production line and its production technology of wood-plastic co-extrusion section bar |
| CN111119442A (en) * | 2020-01-21 | 2020-05-08 | 安徽森泰木塑科技地板有限公司 | Floor capable of preventing water accumulation and foaming |
| CN111119442B (en) * | 2020-01-21 | 2020-08-04 | 安徽森泰木塑科技地板有限公司 | Floor capable of preventing water accumulation and foaming |
| WO2021147171A1 (en) * | 2020-01-21 | 2021-07-29 | 安徽森泰木塑科技地板有限公司 | Foam floorboard capable of preventing accumulation of water |
| CN112192823A (en) * | 2020-09-17 | 2021-01-08 | 江苏亨通光电股份有限公司 | Double-heterochromatic strip sheath and extrusion die thereof |
| CN112192823B (en) * | 2020-09-17 | 2022-05-24 | 江苏亨通光电股份有限公司 | Double-heterochromatic strip sheath and extrusion die thereof |
| CN113320116A (en) * | 2021-06-18 | 2021-08-31 | 无锡井上华光汽车部件有限公司 | Variable-section extrusion die and extrusion method |
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Application publication date: 20160720 |
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| WD01 | Invention patent application deemed withdrawn after publication |