CN102909846B - Double-flow duct temperature difference controlled coextrusion die of full plastic-packaged profiled bar - Google Patents
Double-flow duct temperature difference controlled coextrusion die of full plastic-packaged profiled bar Download PDFInfo
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- CN102909846B CN102909846B CN201210097817.6A CN201210097817A CN102909846B CN 102909846 B CN102909846 B CN 102909846B CN 201210097817 A CN201210097817 A CN 201210097817A CN 102909846 B CN102909846 B CN 102909846B
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Abstract
The invention relates to an improvement of an extrusion die for a wood plastic profiled bar, and discloses a double-flow duct temperature difference controlled coextrusion die for a full plastic-packaged profiled bar. The coextrusion die is provided with a die body, a guide plate, a confluence plate, a B-type die plate and an A-type die plate, wherein flow ducts are formed in the guide plate and the confluence plate; cavities are formed in the B-type die plate and the A-type die plate; two cooling water channels are formed in outer side of the cavity in the A-type die plate; specially, a radiation channel is formed in the A-type die plate; a B-type coextrusion die plate and an A-type coextrusion die plate are connected above the A-type die plate; coextrusion cavities are formed in the B-type die plate and the A-type die plate; a coextrusion material channel is formed in the B-type coextrusion die; and the coextrusion die is communicated with the coextrusion cavity in the B-type coextrusion die plate. The coextrusion die provided by the invention solves the problem of surface cracking or delaminating of the full plastic-packaged profiled bar caused by the use of the existing double-flow duct coextrusion die. The coextrusion die is mainly suitable for improvement of the existing double-flow duct coextrusion die for the full plastic-packaged profiled bar.
Description
(i) technical field: the present invention relates to the improvement that profiled bar extrusion die moulded by wood is that a kind of complete plastic profile shapes dual channel temperature difference controls co-extruding mould.
(ii) background technology: the raw material manufacturing cost that Wood-plastic material can reduce profile shapes is obtained extensive use, but Wood-plastic material profile shapes because of the colorfulness of the characteristic profile shapes of material, fineness, non-oxidizability and wearability all poor; Adopt dual channel co-extruding mould to cover on the top layer of profile shapes and wrap up in one deck PVC polymer plastic glue material, then effectively can improve the physical and chemical index on profile shapes top layer, the cost of material of profile shapes also increases less simultaneously; Because PVC plastic glue covers the thermosetting resin compound that the composite base-material wrapping up in material and profile shapes is two kinds of different formulations, the more difficult control of temperature of bi-material adhesive surface, moreover entirely plastic co-extrusion face, profile shapes top layer is comparatively large, prior art profile shapes dual channel co-extruding mould can only solve local, profile shapes top layer cover wrap up in plastic; The complete plastic profile shapes dual channel co-extruding mould Problems existing of prior art is: PVC covers to be wrapped up in material or fuses completely with the composite base-material of profile shapes, and the top layer after profile shapes cooling and shaping easily cracks; PVC covers to be wrapped up in material or bonds leakiness with the composite base-material of profile shapes, and the top layer after profile shapes cooling and shaping easily produces delamination, and the quality of complete plastic profile shapes is unstable.
(iii) summary of the invention: object of the present invention is exactly the top layer of the profile shapes that will solve existing for existing complete plastic profile shapes dual channel co-extruding mould or cracking or the problem of delamination, provides a kind of complete plastic profile shapes dual channel temperature difference to control co-extruding mould.
Concrete scheme of the present invention is: a kind of complete plastic profile shapes dual channel temperature difference controls co-extruding mould, and it has die body, and die body is provided with crowded material mouth and runner, and the top of die body adopts screw to be separately installed with deflector, cylinder manifold, Type B die plate and A pattern oralia, deflector and cylinder manifold are equipped with runner, and the center that deflector is positioned at runner is provided with spreader, Type B die plate and A pattern oralia are equipped with die cavity, and the outside that A pattern oralia is positioned at die cavity is provided with two cooling water channels, it is characterized in that: described A pattern oralia is provided with radiating groove, Type B coextruding die oralia and A type coextruding die oralia is connected with above A pattern oralia, Type B coextruding die oralia and A type coextruding die oralia are equipped with co-extrusion die cavity, the outside that the upper face of Type B coextruding die oralia is positioned at co-extrusion die cavity is provided with co-extrusion hopper, described co-extrusion hopper is by stable chute, material stock groove, advection groove, branch's chute, sow (channel) and altogether crowded material mouth composition, sow (channel) and branch's chute are in chevron shaped structure, material stock groove and advection groove are in closed-loop configuration, crowded material mouth is the arrival end being located at sow (channel) altogether, Liang Tiao branch chute is communicated with two of sow (channel) ends, material stock groove is communicated with four ends of Liang Tiao branch chute, the inner ring limit of material stock groove is communicated with advection groove, the stable chute of several vertical layouts is located on the inner ring limit of advection groove, depth value H=1-1.2 millimeter of described advection groove, stable chute in described co-extrusion hopper and advection groove are communicated with the co-extrusion die cavity on Type B coextruding die oralia.
Two cooling water channels described in the present embodiment are located in the die orifice plate body outside A pattern oralia die cavity, article two, cooling water channel is in arranging up and down in the body of die plate, article two, cooling water channel is in open loop structure, the two ends of every bar cooling water channel open loop structure are equipped with water inlet and delivery port, and described radiating groove is located on the upper and lower plates face of A pattern oralia.
Co-extrusion die cavity on Type B coextruding die oralia of the present invention and A type coextruding die oralia arranges with the die cavity coaxial line on A pattern oralia.
The present invention is compared with existing complete plastic profile shapes dual channel co-extruding mould, the present invention is provided with Type B coextruding die oralia and A type coextruding die oralia above A pattern oralia die cavity, and be provided with cooling water channel and radiating groove in the outside of A pattern oralia die cavity, then can realize profile shapes extrude composite base-material cooling and shaping after, carry out covering at its extexine the heat painting co-extrusion wrapping up in material more plastic, solve the top layer of the complete plastic profile shapes existing for co-extruding mould original structure or the problem of easily cracking or easily delamination, the quality of complete plastic profile shapes is guaranteed; Compact conformation of the present invention, Be very effective, constant product quality and applied range; The present invention preferably resolves the top layer of the profile shapes existing for existing complete plastic profile shapes dual channel co-extruding mould or cracking or the problem of delamination.
(iv) accompanying drawing illustrates:
Fig. 1: structural front view of the present invention;
Fig. 2: structure top view of the present invention;
Fig. 3: Type B coextruding die oralia and co-extrusion bin design front view;
Fig. 4: Type B coextruding die oralia and co-extrusion hopper A--A view;
Fig. 5: A pattern oralia structural front view;
Fig. 6: A pattern oralia B--B view;
In figure: 1-A type coextruding die oralia, 2-Type B coextruding die oralia, 3-A pattern oralia, 4-Type B die plate, 5-cylinder manifold, 6-deflector, 7-die body, 8-co-extrusion die cavity, 9-co-extrusion hopper, 10-die cavity, 11-cooling water channel, 12-spreader, 13--runner, 14-crowded material mouth, 15-stable chute, 16-material stock groove, 17-advection groove, 18-branch chute, 19-sow (channel), 20-crowded material mouth altogether, 21-water inlet, 22-delivery port, 23-radiating groove.
(v) detailed description of the invention:
Embodiment: (referring to Fig. 1) a kind of complete plastic profile shapes dual channel temperature difference controls co-extruding mould, it has die body 7, die body 7 is provided with crowded material mouth 14 and runner 13, and the top of die body 7 adopts screw to be separately installed with deflector 6, cylinder manifold 5, Type B die plate 4 and A pattern oralia 3, deflector 6 and cylinder manifold 5 are equipped with runner 13, and the center that deflector 6 is positioned at runner 13 is provided with spreader 12, Type B die plate 4 and A pattern oralia 3 are equipped with die cavity 10(and refer to Fig. 2, Fig. 5), the outside that A pattern oralia 3 is positioned at die cavity 10 is provided with two cooling water channel 11(and refers to Fig. 5, Fig. 6), particularly: described A pattern oralia 3 is provided with radiating groove 23, Type B coextruding die oralia 2 and A type coextruding die oralia 1 is connected with above A pattern oralia 3, Type B coextruding die oralia 2 and A type coextruding die oralia 1 are equipped with co-extrusion die cavity 8, the outside that the upper face of Type B coextruding die oralia 2 is positioned at co-extrusion die cavity 8 is provided with co-extrusion hopper 9, described co-extrusion hopper 9 is by stable chute 15, material stock groove 16, advection groove 17, branch's chute 18, sow (channel) 19 and altogether crowded material mouth 20 form and (refer to Fig. 3, Fig. 4), sow (channel) 19 and branch's chute 18 are in chevron shaped structure, material stock groove 16 and advection groove 17 are in closed-loop configuration, crowded material mouth 20 is the arrival ends being located at sow (channel) 19 altogether, Liang Tiao branch chute 18 is communicated with two of sow (channel) 19 ends, material stock groove 16 is communicated with four ends of Liang Tiao branch chute 18, the inner ring limit of material stock groove 16 is communicated with advection groove 17, the stable chute 15 of the present embodiment six vertical layouts is located on the inner ring limit of advection groove 17, depth value H=1-1.2 millimeter (referring to Fig. 4) of described advection groove 17, stable chute 15 in described co-extrusion hopper 9 and advection groove 17 are communicated with the co-extrusion die cavity 8 on Type B coextruding die oralia 2.
Two cooling water channels 11 described in the present embodiment are located in the die orifice plate body outside A pattern oralia 3 die cavity 10 (referring to Fig. 5, Fig. 6), article two, cooling water channel 11 is in arranging up and down in the body of die plate, article two, cooling water channel 11 is in open loop structure, the two ends of every bar cooling water channel 11 open loop structure are equipped with water inlet 21 and delivery port 22, and described radiating groove 23 is located on the upper and lower plates face of A pattern oralia 3.
Co-extrusion die cavity 8 on Type B coextruding die oralia 2 described in the present embodiment and A type coextruding die oralia 1 arranges with die cavity 10 coaxial line on A pattern oralia 3.
Claims (2)
1. the complete plastic profile shapes dual channel temperature difference controls a co-extruding mould, and it has die body, and die body is provided with crowded material mouth and runner, and the top of die body adopts screw to be separately installed with deflector, cylinder manifold, Type B die plate and A pattern oralia, deflector and cylinder manifold are equipped with runner, and the center that deflector is positioned at runner is provided with spreader, Type B die plate and A pattern oralia are equipped with die cavity, and the outside that A pattern oralia is positioned at die cavity is provided with two cooling water channels, it is characterized in that: described A pattern oralia is provided with radiating groove, Type B coextruding die oralia and A type coextruding die oralia is connected with above A pattern oralia, Type B coextruding die oralia and A type coextruding die oralia are equipped with co-extrusion die cavity, the outside that the upper face of Type B coextruding die oralia is positioned at co-extrusion die cavity is provided with co-extrusion hopper, described co-extrusion hopper is by stable chute, material stock groove, advection groove, branch's chute, sow (channel) and altogether crowded material mouth composition, sow (channel) and branch's chute are in chevron shaped structure, material stock groove and advection groove are in closed-loop configuration, crowded material mouth is the arrival end being located at sow (channel) altogether, Liang Tiao branch chute is communicated with two of sow (channel) ends, material stock groove is communicated with four ends of Liang Tiao branch chute, the inner ring limit of material stock groove is communicated with advection groove, the stable chute of several vertical layouts is located on the inner ring limit of advection groove, depth value H=1-1.2 millimeter of described advection groove, stable chute in described co-extrusion hopper and advection groove are communicated with the co-extrusion die cavity on Type B coextruding die oralia, two described cooling water channels are located in the die orifice plate body outside A pattern oralia die cavity, article two, cooling water channel is in arranging up and down in the body of die plate, article two, cooling water channel is in open loop structure, the two ends of every bar cooling water channel open loop structure are equipped with water inlet and delivery port, and described radiating groove is located on the upper and lower plates face of A pattern oralia.
2. the complete plastic profile shapes dual channel temperature difference of one according to claim 1 controls co-extruding mould, it is characterized in that: the co-extrusion die cavity on described Type B coextruding die oralia and A type coextruding die oralia arranges with the die cavity coaxial line on A pattern oralia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097817.6A CN102909846B (en) | 2012-04-06 | 2012-04-06 | Double-flow duct temperature difference controlled coextrusion die of full plastic-packaged profiled bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210097817.6A CN102909846B (en) | 2012-04-06 | 2012-04-06 | Double-flow duct temperature difference controlled coextrusion die of full plastic-packaged profiled bar |
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| CN102909846A CN102909846A (en) | 2013-02-06 |
| CN102909846B true CN102909846B (en) | 2015-07-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105965816A (en) * | 2016-05-27 | 2016-09-28 | 河北莫特美橡塑科技有限公司 | Production line of three-layer hollow plastic formwork |
| CN107972249B (en) * | 2017-11-06 | 2020-06-02 | 马鞍山远大塑料制品实业有限公司 | Double-flow-passage temperature difference control co-extrusion die for full-plastic-coated profiled bar |
| CN109727717B (en) * | 2019-02-28 | 2024-04-05 | 华迅工业(苏州)有限公司 | Antistatic network wire for rail transit |
| CN109676890A (en) * | 2019-02-28 | 2019-04-26 | 华迅工业(苏州)有限公司 | A kind of rail traffic cable double-layer coextrusion outer mold |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201329666Y (en) * | 2009-01-13 | 2009-10-21 | 洛阳市建园模具制造有限公司 | Surface full-coated plastic section bar extruding mould |
| CN202517688U (en) * | 2012-04-06 | 2012-11-07 | 湖北安信塑料模具有限公司 | Double-runner temperature difference control co-extrusion die for full plastic coated profile |
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2012
- 2012-04-06 CN CN201210097817.6A patent/CN102909846B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201329666Y (en) * | 2009-01-13 | 2009-10-21 | 洛阳市建园模具制造有限公司 | Surface full-coated plastic section bar extruding mould |
| CN202517688U (en) * | 2012-04-06 | 2012-11-07 | 湖北安信塑料模具有限公司 | Double-runner temperature difference control co-extrusion die for full plastic coated profile |
Non-Patent Citations (2)
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| 伊藤公正,夏贤辅译.异形制品的共挤出.《塑料》.1982,(第5期),第1至5页. * |
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