CN103358521A - Wood-plastic sectional material co-extrusion mould - Google Patents
Wood-plastic sectional material co-extrusion mould Download PDFInfo
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- CN103358521A CN103358521A CN2012100982646A CN201210098264A CN103358521A CN 103358521 A CN103358521 A CN 103358521A CN 2012100982646 A CN2012100982646 A CN 2012100982646A CN 201210098264 A CN201210098264 A CN 201210098264A CN 103358521 A CN103358521 A CN 103358521A
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Abstract
The invention relates to an extrusion mould for producing a sectional material with the surface covered by a co-extrusion layer and provides a wood-plastic sectional material co-extrusion mould. The wood-plastic sectional material co-extrusion mould is formed by sequentially abutting a mould body, a transition plate, a bracket plate, a mouth template and a lip template, wherein the mould body, the transition plate and the bracket plate are internally provided with main runners; the mouth template and the lip template are internally provided with a main cavity and a mixing cavity which are communicated; the main cavity and the main runner of the bracket plate are integrally connected; the main runner, the main cavity and the mixing cavity are internally provided with mould cores. The extrusion mould is characterized in that the mouth template is provided with a co-extrusion material runner; the co-extrusion material runner and the main cavity are connected to form a whole body. According to the extrusion mould disclosed by the invention, the problems that the anti-ageing performance of the produced sectional material is poor, the color of the surface of the product is not pure white, the hardness of the surface of the product is not enough and the like in a traditional PVC (Polyvinyl Chloride) wood-plastic foaming mould can be solved; the extrusion mould is widely used for producing a co-extrusion mould of the wood-plastic sectional material.
Description
(i) technical field: the present invention relates to be coated with for the production of surface the section bar extruding mould of coextruded layer, is a kind of Wood-plastic profiles co-extruding mould.
(ii) background technology: at present, wood-plastic products applies to the industries such as real estate, gardens, municipal administration, environmental protection widely, mainly can be used for the aspects such as furniture, interior decoration, decoration of exterior wall, outdoor flooring, passage waterborne, outdoor guardrail fence, sunshading board, sun deck, trestle, outdoor seat, technique dustbin, Landscape Architecture.Wood-plastic products has following advantage: (1) waterproof, protection against the tide.Solved wood-based product to the make moist problem of rear easily rotten, dilatancy of water suction in moist and many water environments at all, can use in the environment that the Traditional Wood goods can not apply.(2) insect protected, termite-proof, effectively stop the insects harassing and wrecking, increases the service life.(3) colourful, alternative color is numerous.Both there is natural wood texture and wood grain, can customize according to the individual character of oneself again the color needed.(4) plasticity is strong, can very simply realize personalized moulding, fully demonstrates characteristic feature.(5) high-environmental, pollution-free, nuisanceless, reusable edible.Product is not containing the benzene material, and formaldehyde, lower than the EO grade standard, be Europe deciding grade and level environmental protection standard, and reusable edible has been saved the timber use amount greatly, is applicable to the state basic policy of sustainable development, benefits the society.(6) high fire line.Can be effectively fire-retardant, fire-protection rating reaches the B1 level, meets fire from putting out, and does not produce any toxic gas.(7) machinability is good, but can order, can dig, can saw, can bore, the surface japanning.(8) install simply, construct convenient, do not need numerous and diverse construction technology, save set-up time and expense.(9) do not chap, do not expand, indeformable, without maintenance and maintenance, be convenient to clean, save later period maintenance and upkeep cost.(10) sound-absorbing effect is good, and good energy saving property makes indoor energy-saving up to more than 30%.
At present, it is to be docked and form successively by die body, rebound, supporting plate, mouth template and lip template that common wood is moulded extrusion die, wherein in die body, rebound and supporting plate, be equipped with the sprue communicated, be respectively equipped with the primary cavity communicated in mouth template and lip template and mix die cavity, the port of export of the sprue on primary cavity and supporting plate is connected to form one, and in sprue, primary cavity and mixing die cavity, is provided with core.The wood-plastic products of extruding like this is anti-aging and anti-ultraviolet Performance Ratio is poor, and surface color can not be realized pure white (American-European personage relatively approves that building material surface is pure white), and the hardness of product surface is inadequate.
The rigid PVC co-extrusion extrusion die of existing market referring to Fig. 1, is added with co-extruding flow channel on the lip template, can on major ingredient, coat one deck co-extrusion material like this.Because the raw material of producing Wood-plastic profiles adopts the Wood-plastic foam material, blowing agent and wood powder have been added in foamed material, cause material performance not have the hard PVC raw material stable, and add co-extruding flow channel on the lip template, make the incorporation time of co-extrusion material and major ingredient too short, major ingredient material extrusion together could not mix well, the goods of producing occur the co-extrusion material and the major ingredient bonding strength inadequate, easily layering, come off, the co-extrusion material surface quality problems such as crumple, very undesirable.
At the international wood of the Di Wujie of 2011, mould on summit forum, the hot issue that participant expert and scholar discuss is exactly to realize the problem of wood plastic product co-extrusion, and it will be the next developing direction of wood plastic product.
In sum, designing a kind of Wood-plastic profiles co-extruding mould that can address the above problem well extremely is necessary.
(iii) summary of the invention: purpose of the present invention is exactly will solve owing in the raw material of producing section bar, having added blowing agent and wood powder, caused the raw material overall performance unstable, and the time that traditional rigid PVC co-extrusion extrusion die co-extrusion material and major ingredient converge is too short, the goods that cause producing occur the co-extrusion material and the major ingredient bonding strength inadequate, easily layering, come off, the co-extrusion material surface quality problems such as crumple.
Concrete scheme of the present invention is: for traditional rigid PVC co-extrusion extrusion die, characteristic in conjunction with the Wood-plastic foam raw material is improved, it is by die body, rebound, supporting plate, mouth template and lip template are docked and are formed successively, die body wherein, be equipped with the sprue communicated in rebound and supporting plate, be respectively equipped with the primary cavity communicated in mouth template and lip template and mix die cavity, the port of export of the sprue on primary cavity and supporting plate is connected to form one, sprue, be provided with core in primary cavity and mixing die cavity, it is characterized in that: described mouth template is provided with co-extrusion material runner, co-extrusion material runner and primary cavity link into an integrated entity.
In order to stop the impurity of larger particles in raw material to enter into sprue, the arrival end of die body described in the present invention is equipped with flase floor.Enter the pressure of sprue in order to strengthen major ingredient, the arrival end aperture of the sprue in die body is bell mouth shape and dwindles.
The arrival end aperture of primary cavity described in the present invention is bell mouth shape and dwindles.
In order to make shunting more even, the end that core described in the present invention is positioned at sprue is designed to taper and divides stream interface.
The material of co-extrusion described in the present invention runner has vertically downward or the co-extrusion sprue of side-fed, the bottom of co-extrusion sprue is provided with level or the vertically arranged co-extrusion transition runner be connected, the co-extrusion transition runner is provided with the co-extrusion runner of some vertical or horizontal layouts, and all co-extrusion runners all push through together and cross runner and be connected.
Be provided with co-extrusion material charging aperture between the sprue of co-extrusion described in the present invention and mouth template top or side.
The runner of co-extrusion described in the present invention is located at the tail end of mouth template, and the bottom of co-extrusion runner all links into an integrated entity with primary cavity.
The present invention is simple in structure, easy to use, can realize mould two-chamber co-extrusion simultaneously, can also realize the full coating co-extrusion of whole article outer surface, can produce the Wood-plastic profiles product of anti-aging and anti-ultraviolet better performances; Can the higher Wood-plastic profiles product of production case hardness; Can produce surperficial color and be lily Wood-plastic profiles product, very attractive in appearance; Can also be using waste material as major ingredient, co-extrusion one deck virgin material, improve the waste material service efficiency, realized the comprehensive utilization of resource.
(iv) accompanying drawing explanation:
Fig. 1 is the main cutaway view of traditional rigid PVC co-extrusion extrusion die;
Fig. 2 is main cutaway view of the present invention;
Fig. 3 is the structural representation of mouth template in the present invention.
In figure: 1-lip template, 2-mouth template, 3-bolt, the 4-supporting plate, 5-rebound, 6-die body, the 7-flase floor, 8-sprue, 9-sprue, the 10-core, 11-sprue, 12-primary cavity, 13-co-extrusion material charging aperture, 14-co-extrusion sprue, 15-co-extrusion transition runner, 16-co-extrusion runner, 17-mixing die cavity.
(v) the specific embodiment:
Referring to Fig. 2 and Fig. 3, the present invention is by die body 6, rebound 5, supporting plate 4, mouth template 2 and lip template 1 adopt bolt 3 to dock and form successively, wherein die body 6, be equipped with the sprue 8 communicated in rebound 5 and supporting plate 4, 9, 11, be respectively equipped with the primary cavity 12 communicated in mouth template 2 and lip template 1 and mix die cavity 17, the port of export of the sprue 11 on primary cavity 12 and supporting plate 4 is connected to form one, sprue 9 and 11, be provided with core 10 in primary cavity 12 and mixing die cavity 17, the end that this core 10 is positioned at sprue 9 is taper and divides stream interface, particularly: described mouth template 2 tops are provided with co-extrusion material charging aperture 13(co-extrusion material charging aperture 13, and to open in the side of mouth template 2 be also feasible), co-extrusion material charging aperture 13 bottoms have vertically downward or the co-extrusion sprue 14 of side-fed, the bottom of co-extrusion sprue 14 is provided with level or the vertically arranged co-extrusion transition runner 15 be connected, co-extrusion transition runner 15 is provided with the co-extrusion runner 16 of two vertical or horizontal layouts, article two, co-extrusion runner 16 all pushes through together and crosses runner 15 and be connected, and co-extrusion runner 16 is located at the tail end of mouth template 2, the bottom of co-extrusion runner 16 all links into an integrated entity with primary cavity 12.
The arrival end of die body described in the present embodiment 6 is equipped with flase floor 7 and (sometimes according to actual conditions, adopts spacer shell to replace flase floor 7, spacer shell belongs to prior art, can directly on market, buy), the arrival end aperture of the sprue 8 in die body 6 is bell mouth shape and dwindles.
The arrival end aperture of primary cavity described in the present embodiment 12 is bell mouth shape and dwindles.
Operation principle of the present invention is: during work, major ingredient by the screw rod transmission in extruder to the sprue 8 in die body 6, major ingredient passes through the sprue 9 in rebound 5 successively, sprue 11 in supporting plate 4, and divide the stream interface shunting through the taper of core 10, primary cavity 12 in inlet port template 2, meanwhile, the co-extrusion material enters into co-extrusion sprue 14 by co-extrusion material charging aperture 13 under the effect of another extruder, then pass through successively co-extrusion transition runner 15 and co-extrusion runner 16, be mixed to flow to major ingredient and mix die cavity 17 until flow to primary cavity 12, extrusion molding.
Claims (7)
1. a Wood-plastic profiles co-extruding mould, to dock and form successively by die body, rebound, supporting plate, mouth template and lip template, wherein in die body, rebound and supporting plate, be equipped with the sprue communicated, be respectively equipped with the primary cavity communicated in mouth template and lip template and mix die cavity, the port of export of the sprue on primary cavity and supporting plate is connected to form one, be provided with core in sprue, primary cavity and mixing die cavity, it is characterized in that: described mouth template is provided with co-extrusion material runner, and co-extrusion material runner and primary cavity link into an integrated entity.
2. a kind of Wood-plastic profiles co-extruding mould according to claim 1, it is characterized in that: the arrival end of described die body is equipped with flase floor, and the arrival end aperture of the sprue in die body is bell mouth shape and dwindles.
3. a kind of Wood-plastic profiles co-extruding mould according to claim 1, it is characterized in that: the arrival end aperture of described primary cavity is bell mouth shape and dwindles.
4. a kind of Wood-plastic profiles co-extruding mould according to claim 1 is characterized in that: the end that described core is positioned at sprue is taper and divides stream interface.
5. a kind of Wood-plastic profiles co-extruding mould according to claim 1, it is characterized in that: described co-extrusion material runner has vertically downward or the co-extrusion sprue of side-fed, the bottom of co-extrusion sprue is provided with level or the vertically arranged co-extrusion transition runner be connected, the co-extrusion transition runner is provided with the co-extrusion runner of some vertical or horizontal layouts, and all co-extrusion runners all push through together and cross runner and be connected.
6. a kind of Wood-plastic profiles co-extruding mould according to claim 5, is characterized in that: be provided with co-extrusion material charging aperture between described co-extrusion sprue and mouth template top or side.
7. a kind of Wood-plastic profiles co-extruding mould according to claim 5, it is characterized in that: described co-extrusion runner is located at the tail end of mouth template, and the bottom of co-extrusion runner all links into an integrated entity with primary cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100982646A CN103358521A (en) | 2012-04-06 | 2012-04-06 | Wood-plastic sectional material co-extrusion mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100982646A CN103358521A (en) | 2012-04-06 | 2012-04-06 | Wood-plastic sectional material co-extrusion mould |
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| CN103358521A true CN103358521A (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100982646A Pending CN103358521A (en) | 2012-04-06 | 2012-04-06 | Wood-plastic sectional material co-extrusion mould |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878967A (en) * | 2014-03-25 | 2014-06-25 | 娄底市光能科技发展有限公司 | Novel w-beam guardrail extrusion forming die and guardrail machining process |
| CN110424674A (en) * | 2019-08-21 | 2019-11-08 | 长兴经纬竹制品有限公司 | The floor co-extrusion SPC and its production equipment |
| CN112936712A (en) * | 2019-12-10 | 2021-06-11 | 英属开曼群岛商联冠国际股份有限公司 | Forming die for polyvinyl chloride foamed wood-like blade |
| CN112936711A (en) * | 2019-12-10 | 2021-06-11 | 英属开曼群岛商联冠国际股份有限公司 | Forming die for polyvinyl chloride foamed wood-like blade |
-
2012
- 2012-04-06 CN CN2012100982646A patent/CN103358521A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878967A (en) * | 2014-03-25 | 2014-06-25 | 娄底市光能科技发展有限公司 | Novel w-beam guardrail extrusion forming die and guardrail machining process |
| CN110424674A (en) * | 2019-08-21 | 2019-11-08 | 长兴经纬竹制品有限公司 | The floor co-extrusion SPC and its production equipment |
| CN112936712A (en) * | 2019-12-10 | 2021-06-11 | 英属开曼群岛商联冠国际股份有限公司 | Forming die for polyvinyl chloride foamed wood-like blade |
| CN112936711A (en) * | 2019-12-10 | 2021-06-11 | 英属开曼群岛商联冠国际股份有限公司 | Forming die for polyvinyl chloride foamed wood-like blade |
| CN112936711B (en) * | 2019-12-10 | 2022-09-30 | 英属开曼群岛商联冠国际股份有限公司 | Forming die for polyvinyl chloride foamed wood-like blade |
| CN112936712B (en) * | 2019-12-10 | 2022-10-14 | 英属开曼群岛商联冠国际股份有限公司 | Forming die for polyvinyl chloride foamed wood-like blade |
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Application publication date: 20131023 |