CN204278440U - Air duct protection plate extrusion device is used in soft-hard coextrusion sealing - Google Patents
Air duct protection plate extrusion device is used in soft-hard coextrusion sealing Download PDFInfo
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- CN204278440U CN204278440U CN201420737341.2U CN201420737341U CN204278440U CN 204278440 U CN204278440 U CN 204278440U CN 201420737341 U CN201420737341 U CN 201420737341U CN 204278440 U CN204278440 U CN 204278440U
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- runner
- functor
- soft
- air duct
- protection plate
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Abstract
The utility model discloses a kind of soft-hard coextrusion sealing air duct protection plate extrusion device, the utility model adopts soft material and firmly expects to arrange respective runner on mouth mould feed end, and makes them be in released state; Melt flows in the respective runner of mould, and a distance finally before leaving mouthful mould is converged shaping, and together outside squeezed depanning; It can realize soft material and firmly expect in not shaping process, realize compound and final synchronous forming, can accomplish one-shot forming like this; Melt is at co-extruding mould merged inside, and improve the compound adhesive force between plastics, adhesive performance also can be strengthened, and easily adjustment product is in the distribution of the whole thickness of process simultaneously, and production efficiency have also been obtained raising.The utility model is also well thrashed out to the dimensional parameters of runner, obtains most preferred scheme, guarantees the quality extruded.
Description
Technical field
The utility model relates to middle technical field of polymer materials, especially a kind of soft-hard coextrusion sealing air duct protection plate extrusion device.
Background technology
Source material mixture ratio example, extrusion die, cooling and shaping and hauling speed are four principal elements in air duct protection plate soft-hard coextrusion process, and this plays conclusive impact to the apparent size of product and quality.Plastic co-extrusion technology is emerging plastic irregular profile forming technique in this year, is widely used in the fields such as building industry (as door and window profile material, plastic furniture and interior/exterior decoration profile shapes), auto industry (as automobile plastic profile shapes accessory), packaging industry.Along with the development of domestic and international co-extrusion technology, and the raising in extrusion equipment, extrusion die optimal design, mold machining technology etc., impel variation and the multifunction of plastic shaped section product, and then while raising product specification, reduce the cost of product.In plate class profile shapes is produced with soft-hard coextrusion device, there is the requirement of standard as the bondability, product appearance shape etc. between the thickness of its soft material of air duct protection plate of Haier's refrigerator parts, soft or hard material material.In soft-hard coextrusion forming process, the bondability of soft material and hard material junction has a strong impact on the service life of product, and general HPVC and SPVC coextrusion mold, in its product structure, the tearing strength of soft or hard junction is very large.
Summary of the invention
The purpose of this utility model is: a kind of soft-hard coextrusion sealing air duct protection plate extrusion device, it can realize the one-shot forming of soft material and hard material, improve the compound adhesive force between plastics, increase adhesive performance, easily adjust the distribution of product at the whole thickness of process simultaneously, production efficiency have also been obtained raising, to overcome the deficiencies in the prior art.
The utility model is achieved in that soft-hard coextrusion sealing air duct protection plate extrusion device, comprise die head, die head is provided with first paragraph functor runner, rebound is connected with at the end of die head, rebound is provided with second segment functor runner, mouth template is provided with at the end of rebound, mouth template is provided with structural member runner and the 3rd section of functor runner, each section of functor runner is communicated with successively, 3rd section of functor runner is connected with structural member runner 10-12mm place before the port of export of mouth template and crosses, form and merge runner, the 3rd section of functor runner to be connected with structural member runner cross before there is the angle a of 1-3 °.
The arc length D1 of functor runner and the proportionate relationship of its thickness B that merge runner exit position are D1:B=1:0.02; The length D2 and its thickness A proportionate relationship that merge the structural member runner of runner exit position are D2:A=1:0.06.Under certain squeeze pressure, D1 and B, D2 and A are inversely, can ensure the soft-hard coextrusion air duct protection plate of production fixed dimension that is stable, that continue under such ratio.
The total length L 3 of functor runner is L3:L4=1:0.54 with the proportionate relationship of the length L4 of die head tapered cross-section; The proportionate relationship of the length L5 of the 3rd section of functor runner and the length L6 of forward junction member passage is L5:L6=1:0.57.Such size relationship can guarantee that extruded stock exists certain pressure and extrudes, continuous production.
Merge and between structural member runner in runner and functor runner, there is one and merge angle k, k is 90-95 °, and the proportionate relationship merging angle k and thickness B and arc length D1 is k:B=1:0.008, k:D1=1:0.86, wherein, the proportional units of k:B and k:D1 is °/mm.
The thickness H1 of structural member runner in fusion runner and the ratio of the thickness H2 of functor runner are H1:H2=1:0.84.If ratio reduces, then between soft or hard material, adherence reduces, and even can cause splitting, independent shaping.
Resistance heated plate is provided with outside die head.Heating and thermal insulation is carried out to melt plastics, makes extruded stock carry out shaping through mould smoothly.Between heating plate, junction gradient is 135 °.
Owing to have employed technique scheme, compared with prior art, the utility model adopts soft material and firmly expects to arrange respective runner on mouth mould feed end, and makes them be in released state; Melt flows in the respective runner of mould, and a distance finally before leaving mouthful mould is converged shaping, and together outside squeezed depanning; It can realize soft material and firmly expect in not shaping process, realize compound and final synchronous forming, can accomplish one-shot forming like this; Melt is at co-extruding mould merged inside, and improve the compound adhesive force between plastics, adhesive performance also can be strengthened, and easily adjustment product is in the distribution of the whole thickness of process simultaneously, and production efficiency have also been obtained raising.The utility model is also well thrashed out to the dimensional parameters of runner, obtains most preferred scheme, guarantees the quality extruded.The utility model material shape is simple, and easily produce, with low cost, result of use is good.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the structural representation of die head of the present utility model;
Accompanying drawing 3 is the structural representation of rebound of the present utility model;
Accompanying drawing 4 is the structural representation of mouth template of the present utility model.
Detailed description of the invention
Embodiment of the present utility model: the structure of soft-hard coextrusion sealing air duct protection plate extrusion device as shown in Figure 1, comprise die head 1, die head 1 is provided with first paragraph functor runner 1-1, rebound 2 is connected with at the end of die head 1, rebound 2 is provided with second segment functor runner 1-2, mouth template 3 is provided with at the end of rebound 2, mouth template 3 is provided with structural member runner 5 and the 3rd section of functor runner 1-3, each section of functor runner is communicated with successively, side direction structural member runner 3-1 is communicated with forward junction member passage 3-2, 3rd section of functor runner 1-3 is connected with structural member runner 5 10-12mm place before the port of export of mouth template 5 and crosses, form and merge runner 4 before the 3rd section of functor runner 1-3 to be connected with structural member runner 5 and to cross, there is the angle a of 1-3 °, the arc length D1 of functor runner and the proportionate relationship of its thickness B that merge runner 4 exit position are D1:B=1:0.02, the length D2 and its thickness A proportionate relationship that merge the structural member runner of runner 4 exit position are D2:A=1:0.06, the total length L 3 of functor runner is L3:L4=1:0.54 with the proportionate relationship of the length L4 of die head 3 tapered cross-section, the proportionate relationship of the length L6 after the length L5 of the 3rd section of functor runner 3-3 and structural member runner 5 turn to is L5:L6=1:0.57, merge and between structural member runner in runner 4 and functor runner, there is one and merge angle k, k is 90-95 °, and the proportionate relationship merging angle k and thickness B and arc length D1 is k:B=1:0.008, k:D1=1:0.86, wherein, the proportional units of k:B and k:D1 is °/mm, the thickness H1 of structural member runner in fusion runner 4 and the ratio of the thickness H2 of functor runner are H1:H2=1:0.84, for being threaded between extruder 1 with die head 3, resistance heated plate is provided with outside die head 1.The effect of resistance heated plate carries out heating and thermal insulation to melt plastics, and make extruded stock carry out shaping through mould smoothly, between heating plate, junction gradient is 135 °.Connect with 4 hexagon socket head cap screws between mouth template 3, rebound 2 and die head 1.
In use procedure, by flexible PVC pellet preheating and drying in main extruder hopper, pellet is clamp-oned barrel and is carried out heating plasticizing by the pressure of extruder screw, finally becomes the plastic melt of molten condition; The melt of flexible PVC flows into composite molding die under screw pressure promotes, meanwhile, hard PVC pellet good for heating plasticizing is clamp-oned composite molding die by coextrusion machine, the melt of hard PVC is at co-extruding mould merged inside, in extrusion, two runner gradients are 2 °, and soft like this material, hard material have respective runner at mouth mould feed end, are in released state; These melts flow in the respective runner of mould, and the 11mm place finally before leaving mouthful mould converges shaping, and the outer and final cooling forming of squeezed depanning together.
Claims (6)
1. air duct protection plate extrusion device is used in a soft-hard coextrusion sealing, comprise die head (1), it is characterized in that: on die head (1), be provided with first paragraph functor runner (1-1), rebound (2) is connected with at the end of die head (1), rebound (2) is provided with second segment functor runner (1-2), mouth template (3) is provided with at the end of rebound (2), mouth template (3) is provided with structural member runner (5) and the 3rd section of functor runner (1-3), each section of functor runner is communicated with successively, 3rd section of functor runner (1-3) is connected with structural member runner (5) 10-12mm place before the port of export of mouth template (3) and crosses, form and merge runner (4), the 3rd section of functor runner (1-3) to be connected with structural member runner (5) cross before there is the angle a of 1-3 °.
2. soft-hard coextrusion sealing air duct protection plate extrusion device according to claim 1, is characterized in that: the arc length D1 of functor runner and the proportionate relationship of its thickness B that merge runner (4) exit position are D1:B=1:0.02; The length D2 and its thickness A proportionate relationship that merge the structural member runner of runner (4) exit position are D2:A=1:0.06.
3. soft-hard coextrusion sealing air duct protection plate extrusion device according to claim 1, is characterized in that: the total length L 3 of functor runner is L3:L4=1:0.54 with the proportionate relationship of the length L4 of die head (1) tapered cross-section; The proportionate relationship of the length L6 after the length L5 of the 3rd section of functor runner (1-3) and structural member runner (5) turn to is L5:L6=1:0.57.
4. soft-hard coextrusion sealing air duct protection plate extrusion device according to claim 1, it is characterized in that: merge and between structural member runner in runner (4) and functor runner, there is one and merge angle k, k is 90-95 °, the proportionate relationship merging angle k and thickness B and arc length D1 is k:B=1:0.008, k:D1=1:0.86, wherein, the proportional units of k:B and k:D1 is °/mm.
5. soft-hard coextrusion sealing air duct protection plate extrusion device according to claim 1, is characterized in that: the thickness H1 of structural member runner in fusion runner (4) and the ratio of the thickness H2 of functor runner are H1:H2=1:0.84.
6. soft-hard coextrusion sealing air duct protection plate extrusion device according to claim 1, is characterized in that: outside die head (1), be provided with resistance heated plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737341.2U CN204278440U (en) | 2014-12-01 | 2014-12-01 | Air duct protection plate extrusion device is used in soft-hard coextrusion sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420737341.2U CN204278440U (en) | 2014-12-01 | 2014-12-01 | Air duct protection plate extrusion device is used in soft-hard coextrusion sealing |
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| Publication Number | Publication Date |
|---|---|
| CN204278440U true CN204278440U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420737341.2U Withdrawn - After Issue CN204278440U (en) | 2014-12-01 | 2014-12-01 | Air duct protection plate extrusion device is used in soft-hard coextrusion sealing |
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| Country | Link |
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| CN (1) | CN204278440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385547A (en) * | 2014-12-01 | 2015-03-04 | 贵州省工程复合材料中心 | Air duct protecting plate extrusion device for soft and hard co-extrusion sealing |
-
2014
- 2014-12-01 CN CN201420737341.2U patent/CN204278440U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385547A (en) * | 2014-12-01 | 2015-03-04 | 贵州省工程复合材料中心 | Air duct protecting plate extrusion device for soft and hard co-extrusion sealing |
| CN104385547B (en) * | 2014-12-01 | 2017-04-19 | 贵州省工程复合材料中心 | Air duct protecting plate extrusion device for soft and hard co-extrusion sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20170419 |