CN204451126U - The full coated coextrusion mould of a kind of plastic irregular profile - Google Patents
The full coated coextrusion mould of a kind of plastic irregular profile Download PDFInfo
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- CN204451126U CN204451126U CN201420828612.5U CN201420828612U CN204451126U CN 204451126 U CN204451126 U CN 204451126U CN 201420828612 U CN201420828612 U CN 201420828612U CN 204451126 U CN204451126 U CN 204451126U
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- flow passage
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Abstract
The utility model is the full coated coextrusion mould of a kind of plastic irregular profile, comprise mouthful mould I, mouth mould II, cylinder manifold, supporting plate, spreader fixed head, rebound and die body, spreader fixed head inside is fixed with spreader, be connected with spreader and be connected to core body, mouth mould II is provided with colored material charging aperture, and the both sides being positioned at core body die cavity in mouth mould II are provided with two and converge booster cavity; Extend downwards from colour material charging aperture and be provided with upper conveying flow passage and lower conveying flow passage, upper conveying flow passage draw two upper distribute that runners lead to core body die cavity both sides respectively converge booster cavity, lower conveying flow passage draw to distribute under two that runner leads to core body die cavity both sides respectively converge booster cavity, 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 upper and lower distribution runner and the degree of depth all reduce in gradual change type to arrange; The utility model is simple and compact for structure, and section bar extrusion is effective, compatible high, is mainly used among colored material plastic irregular profile processing and forming.
Description
Technical field
The utility model relates to extrusion die technical field, the full coated coextrusion mould of especially a kind of plastic irregular profile.
Background technology
The raw material of colored complete coated co-extrusion mainly contain ASA, PMMA, ABS, PVC etc., the wherein heat endurance 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, the easiest generation in mold runner of PVC material is decomposed and is charred situation, once occur being charred, the material be charred can be bonded in mold cavity surface, just start be that one or more yellow line appears at Surface of profile, then can aggravate further, 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 co-extruding flow channel of PVC material and machining accuracy very 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 (see Fig. 1-Fig. 4) is arranged on cylinder manifold, runner distance is long, there is sharp turn and dead angle, complex structure, material is easily detained and is charred, there is dead angle in conveying flow passage, Flow of Goods and Materials is not smooth, distribute the wide grade of runner dark, 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 easily produces delay, also there is die head huge, the problem of the bad arrangement of screw hole simultaneously.
Summary of the invention
The purpose of this utility model is exactly expect for existing colored PVC the problems referred to above that full coated coextrusion mould exists, and provide a kind of simple and compact for structure, section bar extrusion is effective, the compatible high full coated coextrusion mould of plastic irregular profile.
Concrete scheme of the present utility model is: the full coated coextrusion mould of a kind of plastic irregular profile, include the mouth mould I, mouth mould II, cylinder manifold, supporting plate, spreader fixed head, rebound and the die body that are linked in sequence successively together, spreader fixed head bosom is fixed with spreader, be connected with spreader and be connected to core body, it is characterized in that: on described mouth mould II, offer colored material charging aperture, the both sides being positioned at core body die cavity in mouth mould II are 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, be respectively conveying flow passage and lower conveying flow passage, what upper conveying flow passage drew that two round and smooth upper distribution runners lead to core body die cavity both sides respectively converges booster cavity, what lower conveying flow passage drew that two round and smooth lower distribution runners lead to core body die cavity both sides respectively converges booster cavity, 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 in gradual change type to arrange from the booster cavity that converges being exported to both sides of respective corresponding conveying flow passage; 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, distribute runner up and down, converge booster cavity all together with colour material charging aperture concentrated setting on mouth mould II.
In order to reduce the resistance of material in conveying flow passage, described in the utility model, rectangle is all arranged in the cross section of upper and lower conveying flow passage, and the drift angle rounding of rectangle is arranged.
The utility model is acquired following beneficial effect:
1) colored material charging aperture and whole runner are arranged on one piece of template mouth mould II, and runner open portion area is little, reduces the buffer brake between two pieces of templates, not leakiness material.
2) conveying flow passage cusp improves up and down, and stream running resistance reduces.
3) distribute width of flow path and degree of depth gradual change reduction up and down, there is not sudden change, runner cumulative volume reduces.
4) converge booster cavity both sides and be set to inclined-plane, leaning now to one side, then to the other fillet in bottom, stream can be made to advance more smooth and easy.
5) mold integral compact conformation, die head volume is avoided too huge, simultaneously better to the compatibility of co-extrusion material.
Accompanying drawing explanation
Fig. 1 is the main apparent direction structural representation of mouth mould 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 the utility model general structure schematic diagram;
Fig. 6 is the utility model structural blast schematic diagram;
Fig. 7 is the main apparent direction structural representation of mouth mould II in the utility model;
Fig. 8 is the main apparent direction structural representation of cylinder manifold in the utility model;
Fig. 9 is cutting structural representation in B-B place in Fig. 7;
Figure 10 converges booster cavity sectional schematic diagram in the utility model.
In figure: 1-mouth mould II, 2-conveying flow passage, 3-distribute runner, 4-colored material charging aperture, 5-cylinder manifold, 6-core body, 7-spreader, 8-mouth mould I, 9-supporting plate, 10-spreader fixed head, 11-rebound, 12-die body, 13-upper conveying flow passage, 14-above distribute runner, 15-lower conveying flow passage, 16-under distribute runner.
Detailed description of the invention
See Fig. 5-Figure 10, the utility model is the full coated coextrusion mould of a kind of plastic irregular profile, include the mouth mould I 8, mouth mould II 1, cylinder manifold 5, supporting plate 9, spreader fixed head 10, rebound 11 and the die body 12 that are linked in sequence successively together, spreader fixed head bosom is fixed with spreader 7, be connected with spreader and be connected to core body 6, it is characterized in that: on described mouth mould II, offer colored material charging aperture 4, the both sides being positioned at core body die cavity in mouth mould II are 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, be respectively 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 lead to core body die cavity both sides respectively converges booster cavity, what lower conveying flow passage drew that two round and smooth lower distribution runners 16 lead to core body die cavity both sides respectively converges booster cavity, 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 in gradual change type to arrange from the booster cavity that converges being exported to both sides of respective corresponding conveying flow passage; 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, distribute runner up and down, converge booster cavity all together with colour material charging aperture concentrated setting on mouth mould II.
In order to reduce the resistance of material in conveying flow passage, described in the present embodiment, rectangle is all arranged in the cross section of upper and lower conveying flow passage 13,15, and the drift angle rounding of rectangle is arranged.
Claims (2)
1. the full coated coextrusion mould of plastic irregular profile, include the mouth mould I, mouth mould II, cylinder manifold, supporting plate, spreader fixed head, rebound and the die body that are linked in sequence successively together, spreader fixed head bosom is fixed with spreader, be connected with spreader and be connected to core body, it is characterized in that: on described mouth mould II, offer colored material charging aperture, the both sides being positioned at core body die cavity in mouth mould II are 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, be respectively conveying flow passage and lower conveying flow passage, what upper conveying flow passage drew that two round and smooth upper distribution runners lead to core body die cavity both sides respectively converges booster cavity, what lower conveying flow passage drew that two round and smooth lower distribution runners lead to core body die cavity both sides respectively converges booster cavity, 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 in gradual change type to arrange from the booster cavity that converges being exported to both sides of respective corresponding conveying flow passage; 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, distribute runner up and down, converge booster cavity all together with colour material charging aperture concentrated setting on mouth mould II.
2. the full coated coextrusion mould of a kind of plastic irregular profile according to claim 1, is characterized in that: rectangle is all arranged in the cross section of described upper and lower conveying flow passage, and the drift angle rounding of rectangle is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420828612.5U CN204451126U (en) | 2014-12-24 | 2014-12-24 | The full coated coextrusion mould of a kind of plastic irregular profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420828612.5U CN204451126U (en) | 2014-12-24 | 2014-12-24 | The full coated coextrusion mould of a kind of plastic irregular profile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204451126U true CN204451126U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420828612.5U Active CN204451126U (en) | 2014-12-24 | 2014-12-24 | The full coated coextrusion mould of a kind of plastic irregular profile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204451126U (en) |
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2014
- 2014-12-24 CN CN201420828612.5U patent/CN204451126U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |