CN202528422U - Coextrusion mold for wood-plastic sections - Google Patents
Coextrusion mold for wood-plastic sections Download PDFInfo
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- CN202528422U CN202528422U CN2012201407755U CN201220140775U CN202528422U CN 202528422 U CN202528422 U CN 202528422U CN 2012201407755 U CN2012201407755 U CN 2012201407755U CN 201220140775 U CN201220140775 U CN 201220140775U CN 202528422 U CN202528422 U CN 202528422U
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Abstract
The utility model relates to a coextrusion mold for producing sections each of which the surface is wrapped by a coextrusion layer and discloses a coextrusion mold for wood-plastic sections. The coextrusion mold is formed by sequentially butting a mold body, a transition plate, a supporting plate, a mouth template and a lip template, wherein main runners are respectively formed in the mold body, the transition plate and the supporting plate; a main cavity and a mixed cavity which are communicated with each other are formed in the mouth template and the lip template; the main cavity is connected with the main runner of the supporting plate to form a whole; and mold cores are formed in the main runners, the main cavity and the mixed cavity. The coextrusion mold is characterized in that a coextrusion material runner is formed on the mouth template and is connected with the main cavity to form a whole. By the coextrusion mold, problems that the aging resistance of the sections produced by the conventional polyvinyl chloride (PVC) wood-plastic foaming mold is poor, the color of the surface of each product cannot be pure white, the hardness of the surface of each product is poor and the like are solved, and the coextrusion mold is widely applied to production of the wood plastic sections.
Description
The (1) technical field: the utility model relates to and is used to produce the section bar extrusion die that the surface is coated with coextruded layer, is a kind of Wood-plastic profiles co-extruding mould.
(2) background technology: at present; Wood-plastic products applies to industries such as real estate, gardens, municipal administration, environmental protection widely, mainly can be used for aspects such as furniture, interior decoration, decoration of exterior wall, outdoor flooring, passage waterborne, outdoor guardrail fence, sunshading board, sun deck, trestle, outdoor seat, technology dustbin, view building.Wood-plastic products has following advantage: (1) waterproof, protection against the tide.Solved wood-based product at all and suction in moist and the many water environments made moist the back is rotten easily, the problem of dilatancy, can use traditional woodwork can not environment of applications in.(2) the insects harassing and wrecking are effectively stopped in insect protected, termite-proof, increase the service life.(3) colourful, alternative color is numerous.Both had natural wood sense and wood grain, can customize the color of needs again according to the individual character of oneself.(4) plasticity is strong, can very simply realize personalized moulding, demonstrates fully characteristic feature.(5) the high feature of environmental protection, pollution-free, nuisanceless, reusable edible.Product does not contain the benzene material, and formaldehyde is lower than the EO grade standard, is Europe deciding grade and level environmental protection standard, and reusable edible has been practiced thrift the timber use amount greatly, is fit 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, it is convenient to construct, and does not need numerous and diverse construction technology, saves set-up time and expense.(9) do not chap, do not expand, indeformable, need not maintenance and maintenance, be convenient to cleaning, 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 successively by die body, rebound, supporting plate, mouth template and lip template to form that common wood is moulded extrusion die; Wherein be equipped with the sprue that communicates in die body, rebound and the supporting plate; Be respectively equipped with the primary cavity and mixing die cavity that communicate in mouth template and the lip template, the port of export of the sprue on primary cavity and the supporting plate is connected to form one, and is provided with core in sprue, primary cavity and the mixing die cavity.Anti-aging and the anti-ultraviolet performance of the wood-plastic products of extruding like this is poor, and surface color can not be realized pure white (American-European personage approves that relatively building material surface is a pure white), and the hardness of product surface is not enough.
The rigid PVC co-extrusion extrusion die of existing market referring to Fig. 1, promptly is added with co-extruding flow channel on the lip template, can on major ingredient, coat one deck co-extrusion material like this.Adopt the Wood-plastic foam material owing to produce the raw material of Wood-plastic profiles, added blowing agent and wood powder in the foamed material, cause material performance not have the hard PVC raw material stable; Make that the incorporation time of co-extrusion material and major ingredient is too short and on the lip template, add co-extruding flow channel, major ingredient material extrusion together fails to mix well, and the goods of producing the co-extrusion material occurs and the major ingredient bonding strength is not enough; Layering easily; Come off, co-extrusion material surface quality problems such as crumple, very undesirable.
The 5th international wood in 2011 is moulded on the summit forum, and 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, a kind of Wood-plastic profiles co-extruding mould that can address the above problem well of design is very to be necessary.
The (3) summary of the invention: the purpose of the utility model is exactly will solve owing to added blowing agent and wood powder in the raw material of production section bar; 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, and the goods that cause producing the co-extrusion material occurs and the major ingredient bonding strength is not enough, layering easily; Come off co-extrusion material surface quality problems such as crumple.
The concrete scheme of the utility model is: to traditional rigid PVC co-extrusion extrusion die; Improve in conjunction with the Wood-plastic foam Material Characteristics; It is to be docked successively by die body, rebound, supporting plate, mouth template and lip template to form, and wherein is equipped with the sprue that communicates in die body, rebound and the supporting plate, is respectively equipped with the primary cavity and mixing die cavity that communicate in mouth template and the lip template; The port of export of the sprue on primary cavity and the supporting plate is connected to form one; Be provided with core in sprue, primary cavity and the mixing die cavity, it is characterized in that: said mouth template is provided with co-extrusion materials flow road, and co-extrusion materials flow road and primary cavity link into an integrated entity.
The impurity of larger particles enters into sprue in the raw material in order to stop, and the arrival end of die body described in the utility model is equipped with flase floor.In order to strengthen the pressure that major ingredient gets into sprue, the arrival end aperture of the sprue in the die body is bell mouth shape and dwindles.
The arrival end aperture of primary cavity described in the utility model is bell mouth shape and dwindles.
In order to make shunting more even, the end that core described in the utility model is positioned at sprue is designed to taper and divides stream interface.
The materials flow of co-extrusion described in the utility model road 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 that is connected; 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 utility model and mouth template top or the side.
The runner of co-extrusion described in the utility model 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 utility model is simple in structure, and is 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 production case hardness than higher Wood-plastic profiles product; The color that can produce the surface is lily Wood-plastic profiles product, and is very attractive in appearance; Can also be with waste material as major ingredient, co-extrusion one deck virgin material improves the waste material service efficiency, has realized the comprehensive utilization of resource.
The (4) description of drawings:
Fig. 1 is the main cutaway view of traditional rigid PVC co-extrusion extrusion die;
Fig. 2 is the main cutaway view of the utility model;
Fig. 3 is the structural representation of mouth template in the utility model.
Among the figure: 1-lip template, 2-mouth template, 3-bolt, 4-supporting plate, 5-rebound; The 6-die body, 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.
The (5) specific embodiment:
Referring to Fig. 2 and Fig. 3; The utility model is to adopt bolt 3 to dock successively by die body 6, rebound 5, supporting plate 4, mouth template 2 and lip template 1 to form; Wherein be equipped with the sprue 8,9,11 that communicates in die body 6, rebound 5 and the supporting plate 4; Be respectively equipped with the primary cavity 12 and mixing die cavity 17 that communicate in mouth template 2 and the lip template 1; The port of export of the sprue 11 on primary cavity 12 and the supporting plate 4 is connected to form one; The end that sprue 9 and 11, primary cavity 12 and mix in the die cavity 17 and be provided with core 10, this core 10 are positioned at sprue 9 is taper and divides stream interface, and particularly: said mouth template 2 tops are provided with co-extrusion material charging aperture 13 (it also is feasible that co-extrusion material charging aperture 13 is opened in the side of mouth template 2); 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 that is connected, and 16, two co-extrusion runners 16 of co-extrusion runner that co-extrusion transition runner 15 is provided with two vertical or horizontal layouts all push through together and cross runner 15 and be connected; And co-extrusion runner 16 is located at the tail end of mouth template 2, and 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 (adopt spacer shell to replace flase floor 7 according to actual conditions sometimes, spacer shell belongs to prior art, can directly on market, buy), and the arrival end aperture of the sprue 8 in the 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.
The operation principle of the utility model is: during work; Major ingredient is by the sprue 8 in the screw rod transmission in the extruder to the die body 6, and major ingredient passes through the sprue 9 in the rebound 5, the sprue 11 in the supporting plate 4 successively, and divides the stream interface shunting through the taper of core 10; Primary cavity 12 in the 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, passes through co-extrusion transition runner 15 and co-extrusion runner 16 then successively; Be mixed to flow to major ingredient and mix die cavity 17, extrusion molding until flowing to primary cavity 12.
Claims (7)
1. Wood-plastic profiles co-extruding mould; Be to dock successively by die body, rebound, supporting plate, mouth template and lip template to form; Wherein be equipped with the sprue that communicates in die body, rebound and the supporting plate; Be respectively equipped with the primary cavity and mixing die cavity that communicate in mouth template and the lip template, the port of export of the sprue on primary cavity and the supporting plate is connected to form one, and is provided with core in sprue, primary cavity and the mixing die cavity; It is characterized in that: said mouth template is provided with co-extrusion materials flow road, and co-extrusion materials flow road 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 said die body is equipped with flase floor, and the arrival end aperture of the sprue in the die body is bell mouth shape and dwindles.
3. a kind of Wood-plastic profiles co-extruding mould according to claim 1 is characterized in that: the arrival end aperture of said 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 said 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: said co-extrusion materials flow road 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 that is connected; 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 said co-extrusion sprue and mouth template top or the side.
7. a kind of Wood-plastic profiles co-extruding mould according to claim 5, it is characterized in that: said 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 |
|---|---|---|---|
| CN2012201407755U CN202528422U (en) | 2012-04-06 | 2012-04-06 | Coextrusion mold for wood-plastic sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201407755U CN202528422U (en) | 2012-04-06 | 2012-04-06 | Coextrusion mold for wood-plastic sections |
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| CN202528422U true CN202528422U (en) | 2012-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201407755U Expired - Fee Related CN202528422U (en) | 2012-04-06 | 2012-04-06 | Coextrusion mold for wood-plastic sections |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962973A (en) * | 2012-11-28 | 2013-03-13 | 铜陵中发三佳科技股份有限公司 | Method for forming wood plastic section bars with polyvinyl chloride (PVC) cladding layer and extrusion mould |
| CN103144270A (en) * | 2013-01-21 | 2013-06-12 | 东北林业大学 | Mould and method of preparing high interface bonding intensity wood-plastic composite in co-extrusion mode |
| CN103192510A (en) * | 2013-04-11 | 2013-07-10 | 黄石市嘉瑞塑料模具有限公司 | Multi-layer composite co-extrusion mold of soft PVC (polyvinyl chloride) stair anti-skid board |
| CN109016314A (en) * | 2017-06-09 | 2018-12-18 | 南京法宁格节能科技股份有限公司 | The double methods opened of XPS profile shapes ornamental strip mold and mould therefor |
| CN113829600A (en) * | 2021-09-16 | 2021-12-24 | 安徽国风木塑科技有限公司 | Colorful co-extrusion wood-plastic mold runner |
-
2012
- 2012-04-06 CN CN2012201407755U patent/CN202528422U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962973A (en) * | 2012-11-28 | 2013-03-13 | 铜陵中发三佳科技股份有限公司 | Method for forming wood plastic section bars with polyvinyl chloride (PVC) cladding layer and extrusion mould |
| CN103144270A (en) * | 2013-01-21 | 2013-06-12 | 东北林业大学 | Mould and method of preparing high interface bonding intensity wood-plastic composite in co-extrusion mode |
| CN103144270B (en) * | 2013-01-21 | 2015-07-15 | 东北林业大学 | Method of preparing high interface bonding intensity wood-plastic composite in co-extrusion mode |
| CN103192510A (en) * | 2013-04-11 | 2013-07-10 | 黄石市嘉瑞塑料模具有限公司 | Multi-layer composite co-extrusion mold of soft PVC (polyvinyl chloride) stair anti-skid board |
| CN109016314A (en) * | 2017-06-09 | 2018-12-18 | 南京法宁格节能科技股份有限公司 | The double methods opened of XPS profile shapes ornamental strip mold and mould therefor |
| CN113829600A (en) * | 2021-09-16 | 2021-12-24 | 安徽国风木塑科技有限公司 | Colorful co-extrusion wood-plastic mold runner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140406 |