CN102476441B - Extrusion die of automobile vehicle window sealing strip - Google Patents
Extrusion die of automobile vehicle window sealing strip Download PDFInfo
- Publication number
- CN102476441B CN102476441B CN201010564346.6A CN201010564346A CN102476441B CN 102476441 B CN102476441 B CN 102476441B CN 201010564346 A CN201010564346 A CN 201010564346A CN 102476441 B CN102476441 B CN 102476441B
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- base
- vehicle window
- sealing strip
- automobile vehicle
- window sealing
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Abstract
The invention provides an extrusion die of an automobile vehicle window sealing strip. The extrusion die comprises a die pedestal and a forming die arranged on the die pedestal. The forming die comprises a rubber feeding sheet, a fusion plate and a port mould board that are successively connected together. The rubber feeding sheet and the fusion plate are provided with a matrix cavity and a wear resistant material channel; the matrix cavity forms a base-material channel; separation ribs are arranged at corners of the matrix cavity; the base-material channel is divided into a plurality of independent base-material subchannels by the separation ribs; matrix cavity and the wear resistant material channel merge at an outlet end of the fusion plate; the port mould board is provided with a merging chamber shared by the base-material and the wear resistant material. The invention has beneficial effect that separation ribs divide the base-material channel into a plurality of independent base-material subchannels, so as to enable the fusion material to have a same flow velocity in each base-material subchannel and reduce eddy current; the produced automobile vehicle window sealing strip has uniform and flattening quality.
Description
Technical field
The invention belongs to automobile sealing member field, particularly relate to a kind of extrusion die of automobile vehicle window sealing strip.
Background technology
Along with the develop rapidly of modern automobile industry, the requirement of modern automobile to material is more and more higher, and especially with the sealing band of glass contact, traditional ethylene propylene diene rubber (EPDM) can not meet the automotive technology standard of increasingly stringent.Thermoplastic Vulcanizate (TPV) is the high resiliency of new material, existing rubber, has again the secondary application performance that thermoplastic plastic has; Have good weatherability, resistance to chemical attack, easy to process, the feature such as pollution-free, is applied in automobile vehicle window sealing strip and can either alleviates tare, play again environmental and durable effect.
The main method of TPV extrusion molding that adopts prepares automobile vehicle window sealing strip at present, extrusion molding refers to that material is by the effect between extruder barrel and screw rod, limit is by thermoplastification, while by screw rod pushed forward, continue through the mould in head and make a kind of job operation of various cross section articles or half-finished parts.Because plastics flow in the molten state, there is larger stream friction resistance, and automobile vehicle window sealing strip is because of its cross section complexity, turning is many, melting charge corner in mold cavity is caused easily to form eddy current, cause melting charge flow velocity in runner uneven, make products thickness uneven, form is unstable, and surface can not reach smooth.
Summary of the invention
The present invention is for solving automobile vehicle window sealing strip uneven thickness, form is unstable, and surface can not reach smooth technical matters, one is provided to prevent melting charge corner in mold cavity from producing eddy current, the extrusion die of equalizing molten material automobile vehicle window sealing strip of flow velocity in runner, the automobile vehicle window sealing strip that this extrusion die is made has uniform thickness and smooth outward appearance.
The invention provides a kind of extrusion die preparing automobile vehicle window sealing strip, comprise mold base and be located at the forming mould on mold base;
Described mold base is provided with base-material inlet point, high-abrasive material inlet point, base-material discharging opening, high-abrasive material discharging opening;
Described forming mould successively by entering offset plate, merge plate, die panel and link together by extruding direction, every block plate comprises entrance point, exit end by extruding direction; Described enter offset plate towards described mold base;
Described enter offset plate, merge plate and be provided with the matrix die cavity is communicated with described base-material discharging opening and the high-abrasive material runner be communicated with described high-abrasive material discharging opening, described matrix die cavity formation base-material runner; The corner of described matrix die cavity is provided with a point muscle, and described base-material runner is divided into some independently base-material runners by described point of muscle; Described matrix die cavity and high-abrasive material runner conflux at described fusion plate exit end; Described die panel is provided with base-material and the common chamber of confluxing of high-abrasive material.
The invention has the beneficial effects as follows: by arranging a point muscle, base-material runner being separated into some independently base-material runners, making the flow velocity of melting charge in each base-material runner identical, and not channeling bit mutually, be conducive to the interfacial stress reducing melting charge, reduce eddy current; Useful to raising extrusion molding speed, and repair a die conveniently, the automobile vehicle window sealing strip produced is homogeneous, smooth.
Accompanying drawing explanation
Fig. 1 is automobile vehicle window sealing strip section drawing provided by the invention.
Fig. 2 is mold base one schematic diagram provided by the invention.
Fig. 3 is mold base two schematic diagram provided by the invention.
Fig. 4 be provided by the invention enter offset plate entrance point schematic diagram.
Fig. 5 be provided by the invention enter offset plate exit end schematic diagram.
Fig. 6 be provided by the invention enter the enlarged drawing of matrix die cavity of offset plate.
Fig. 7 is fusion plate entrance point schematic diagram provided by the invention.
Fig. 8 is fusion plate exit end schematic diagram provided by the invention.
Fig. 9 is the enlarged drawing of the matrix die cavity of fusion plate provided by the invention.
Figure 10 is die panel schematic diagram provided by the invention.
Figure 11 is the exploded drawings of extrusion die provided by the invention.
Detailed description of the invention
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, automobile vehicle window sealing strip 100 is that the matrix 110 be made up of base-material and the wearing layer 120 be made up of high-abrasive material are formed.Matrix 110 comprises left holder 111, right holder 112, bottom surface 113 and connects the both wings 114 of bottom surface 113 and left and right holder.Because glass for vehicle window to be installed on bottom surface 113 and clamped by left and right holder, so Wear-resistant Treatment need be done at these positions, wearing layer 120 is set in the upper surface of left holder 111, right holder 112 and bottom surface 113.When automobile vehicle window sealing strip 100 is positioned at vehicle window left and right sides, because glass for vehicle window often slides up and down, form the friction with both wings 114, therefore also need to do Wear-resistant Treatment at the upper surface of both wings 114, wearing layer 120 is set; But when if automobile vehicle window sealing strip 100 is positioned at vehicle window upper and lower sides, then seldom produced the slip of glass for vehicle window, the upper surface of both wings 114 would not need to arrange wearing layer.The present invention be positioned at vehicle window left and right sides automobile vehicle window sealing strip for embodiment.
Described base-material is software TPV, and hardness is shore A68-shore A75, preferred shore A70 degree; Described high-abrasive material is hardware TPV
,hardness is shore D43-shore D50, preferred shore D45 degree.
Preparing automobile vehicle window sealing strip 100 mainly adopts the equipment such as base-material extruder, high-abrasive material extruder and head to be obtained by extrusion molding.The present invention is to provide the extrusion die in head, other relevant devices can be equipment well-known to those skilled in the art.
Extrusion die provided by the invention is arranged in head, is made up of mold base 200 and the forming mould be located on mold base 200.
Refer to Fig. 2-3, mold base 200 of the present invention comprises mold base one 200A and mold base two 200B, is bolted to connection together.The one side that mold base one 200A is relative with mold base two 200B is provided with corresponding runner, after they are fixedly connected with relatively, corresponding runner defines base-material inlet point 210 and high-abrasive material inlet point 220, and these two inlet points do not communicate, and described base-material inlet point 210 is connected with base-material extruder; Described high-abrasive material inlet point 220 is connected with high-abrasive material extruder.Mold base two 200B is formed the base-material discharging opening 230 be communicated with base-material inlet point 210, the high-abrasive material discharging opening 240 be communicated with high-abrasive material inlet point 220.
The effect of mold base 200 is the base-material extruded of shunting extruder and wearing layer material, makes it to flow in forming mould gently; Mold base one 200A has inspecting hole 201, inserts the actual temperature that mould observed by temperature detection instrument during work.
Described forming mould is linked into an integrated entity by bolt or pin by entering offset plate 310, fusion plate 320 and die panel 330 successively, and is installed on mold base 200, and enters offset plate 310 towards mold base two 200B, and particular location refers to Figure 11.In Figure 11, arrow X-direction is for extruding direction, and arrow Y-direction is the feedstock direction of base-material and high-abrasive material.
Refer to Fig. 4-5, entering offset plate 310 is respectively into offset plate entrance point 310A and the schematic diagram entering offset plate exit end 310B along two ends of Figure 11 arrow X-direction, described enter offset plate entrance point 310A towards mold base two 200B, described in enter offset plate exit end 310B towards fusion plate 320.
Described enter offset plate 310 thickness be 12mm, which is provided with matrix die cavity 311 and the high-abrasive material runner of permeability.Described permeability refers to that matrix die cavity 311 is through to into offset plate exit end 310B from entering offset plate entrance point 310A.The shape of matrix die cavity 311 and the cross sectional shape of automobile vehicle window sealing strip 100 adapt, and are divided into: left holder die cavity, right holder die cavity, bottom surface die cavity and both wings die cavity; Matrix die cavity 311 size and the automobile vehicle window sealing strip 100 sectional dimension ratio of entering offset plate are 1.2:1.Matrix die cavity 311 is corresponding with above-mentioned base-material discharging opening 230 to be arranged, and base-material can be reached in the matrix die cavity 311 of offset plate by base-material discharging opening 230.
The high-abrasive material runner entering offset plate 310 is communicated with above-mentioned high-abrasive material discharging opening 240, comprise the first molten bath 313 be positioned at into offset plate entrance point 310A, be positioned at the second molten bath 314 into offset plate exit end 310B, and be communicated with the die cavity holes 312 in the first molten bath 313 and the second molten bath 314.First molten bath 313 shape of the present invention is the circular ring type groove of about 1/4, and die cavity holes 312 is located at one end, molten bath 313, above-mentioned high-abrasive material discharging opening 240 corresponding molten bath 313 other end.High-abrasive material, by after high-abrasive material discharging opening 240, flows in molten bath 313 and stores, and due to the effect of pressure, the high-abrasive material of storage continues through die cavity holes 312 and flows into in second molten bath 314 of offset plate exit end 310B.
Refer to Fig. 5, the second molten bath 314 be located at into offset plate exit end 310B adopts claw structure, and comprise molten bath 314A and the molten bath 314B between molten bath 314A and matrix die cavity 311, die cavity holes 312 is located at the midway location of molten bath 314A.The bottom surface of molten bath 314B is lower than the bottom surface of molten bath 314A, has passage 315 to connect between molten bath 314A and molten bath 314B.As can be seen from Figure 5, molten bath 314B is divided into three parts, above the left holder die cavity laying respectively at matrix die cavity 311, above right holder die cavity, above bottom surface die cavity and both wings die cavity.Molten bath 314 adopts the claw structure in the face that falls, and makes high-abrasive material can be attached to base-material surface smoothly in runner, and claw structure contributes to dispersion melting charge pressure simultaneously, ensures that in runner, melting charge pressure is consistent.
Refer to Fig. 6, the present invention is provided with point muscle 3111 in the corner of the matrix die cavity 311 entering offset plate.Described corner refers to the corner of the left holder die cavity of matrix die cavity 311 and the corner of both wings die cavity, the corner of right holder die cavity and both wings die cavity, bottom surface die cavity and both wings die cavity.Matrix die cavity 311 defines base-material runner, arranging a point muscle 3111 in matrix die cavity 311 corner makes base-material runner be divided into some independently base-material runners by a point muscle, these base-material runners are non-interference, effectively prevent base-material from producing eddy current around the corner, balance the flow velocity of base-material in matrix die cavity simultaneously.Divide the thickness of muscle 3111 unsuitable excessive, preferably within the scope of 0.4-0.6mm.
Refer to Fig. 7-8, fusion plate 320 is respectively fusion plate entrance point 320A along two ends of Figure 11 arrow X-direction and merges plate exit end 320B, and described fusion plate entrance point 320A is towards entering offset plate 310, and described fusion plate exit end 320B is towards die panel 330.
Described fusion plate 320 thickness is 10mm, which is provided with matrix die cavity 321 and the high-abrasive material runner of permeability.Described permeability refers to that matrix die cavity 321 is through to from fusion plate entrance point 320A and merges plate exit end 320B.The shape of matrix die cavity 321 and the cross sectional shape of automobile vehicle window sealing strip 100 adapt, and are divided into: left holder die cavity, right holder die cavity, bottom surface die cavity and both wings die cavity; Matrix die cavity 321 size and the automobile vehicle window sealing strip 100 sectional dimension ratio that merge plate are 1.1:1.Matrix die cavity 321 with above-mentioned enter the matrix die cavity 311 of offset plate is corresponding arranges, base-material can be entered in matrix die cavity 321 by matrix die cavity 311.
The high-abrasive material runner merging plate 320 with above-mentioned enter the high-abrasive material flow passage of offset plate 310, comprise the molten bath 323 being positioned at fusion plate exit end 320B and several die cavity holes 322 being positioned at molten bath 323.Molten bath 323 with above-mentioned enter the molten bath 314B shape of offset plate identical, position is corresponding; Simultaneously also be divided into three parts, above the left holder die cavity laying respectively at matrix die cavity 321, above right holder die cavity, above bottom surface die cavity and both wings die cavity.The position away from matrix die cavity 321 should be chosen in the position of die cavity holes 322, as 8-12mm.Because molten bath 323 is corresponding with 314B position, molten bath, die cavity holes 322 is also corresponding with molten bath 314B, makes high-abrasive material enter die cavity holes 322 from molten bath 314B and flow in molten bath 323 and stores.
Refer to Fig. 9, with to enter offset plate identical, the present invention is also provided with point muscle 3211 in the corner of the matrix die cavity 321 merging plate, and thickness is preferably within the scope of 0.4-0.6mm.Divide muscle 3211 role identical, repeat no more.Under preferable case, muscle 3211 is divided to adopt half disconnected form, the described half disconnected base-material runner referring to that matrix die cavity 321 is formed is not divided into completely independently base-material runner by a point muscle 3211, substantially between each base-material runner, disconnect but be not disconnect completely, but leave certain space adjacent two base-material runners still can be communicated with.The object of dividing muscle 3211 to be arranged to partly break is: test proof through contriver, if muscle 3211 will be divided to be arranged to disconnect completely (the same with point muscle 3111 entering offset plate 310), the automobile vehicle window sealing strip 100 then made easily has an impact in the corner of left holder 111 and both wings 114 and right holder 112 and the corner of both wings 114 trace that confluxes of outward appearance, and producing the trace that confluxes is because base-material causes from not being welded together in time after base-material runner flows out.Therefore only need arrange half disconnected point muscle in the place affecting outward appearance, those places not affecting outward appearance can arrange half disconnected point muscle as bottom surface 113 and the corner of both wings 114, also can arrange point muscle disconnected completely.Arranging half its distance disconnected of point muscle broken is 0.8 ~ 1.2mm, is preferably 1mm.
Please continue to refer to Fig. 8, molten bath 323 and matrix die cavity 321 conflux merging plate exit end 320B, described confluxing is by the fusion plate body between molten bath 323 and matrix die cavity 321 is reduced certain altitude, molten bath 323 is communicated with matrix die cavity 321, and the high-abrasive material be stored in molten bath 323 is extremely confluxed with the base-material in matrix die cavity 321 by this surface current reduced.
Refer to Figure 10, die panel 330 offers the chamber 331 of confluxing of permeability, the shape in this chamber 331 of confluxing is identical with the shape of automobile vehicle window sealing strip 100, and size is 1.02:1 with the ratio of automobile vehicle window sealing strip section.Die panel 330 thickness is 8mm, and base-material and high-abrasive material are after fusion plate exit end 320B confluxes, and through die panel, namely bi-material is finalized.
Described automobile vehicle window sealing strip forming process is, base-material and high-abrasive material heated and formed into molten state state is made respectively on base-material extruder and high-abrasive material extruder, the plastics of described molten condition are under pressure by extrusion die of the present invention, due to the effect of point muscle, it is shaping respectively that base-material under molten condition enters different base-material runners, then each several part of basic forming enters in die panel and continues to move, the edge of each several part contacts with each other and is automatically welded together, form integrative-structure, material is thus formed continuous print sealing band.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. prepare an extrusion die for automobile vehicle window sealing strip, it is characterized in that:
The forming mould that described extrusion die comprises mold base (200) and is located on mold base; Described mold base (200) is provided with base-material inlet point (210), high-abrasive material inlet point (220), base-material discharging opening (230), high-abrasive material discharging opening (240);
Described forming mould successively by entering offset plate (310), merge plate (320), die panel (330) links together by extruding direction, every block plate comprises entrance point, exit end by extruding direction; Described enter offset plate (310) towards described mold base (200);
Described enter offset plate, merge plate and be provided with the matrix die cavity is communicated with described base-material discharging opening and the high-abrasive material runner be communicated with described high-abrasive material discharging opening, described matrix die cavity formation base-material runner; The corner of described matrix die cavity is provided with a point muscle, and described base-material runner is divided into some independently base-material runners by described point of muscle; Described matrix die cavity and high-abrasive material runner conflux at described fusion plate exit end; Described die panel is provided with base-material and the common chamber of confluxing of high-abrasive material.
2. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 1, it is characterized in that: point muscle of the matrix die cavity corner of described fusion plate (320) adopts half disconnected form.
3. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 2, it is characterized in that: the described half separation muscle break distance broken is 0.8-1.2mm.
4. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 1 or 2, it is characterized in that: described point of muscle thickness is 0.4-0.6mm.
5. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 1, it is characterized in that: described in enter offset plate high-abrasive material runner comprise be positioned at into offset plate entrance point (310A) the first molten bath (313), be positioned at the second molten bath (314) into offset plate exit end and the die cavity holes (312) being communicated with the first molten bath (313), the second molten bath (314).
6. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 5, it is characterized in that: described second molten bath (314) adopts claw structure.
7. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 1, it is characterized in that: the high-abrasive material runner of described fusion plate comprises the molten bath (323) being positioned at fusion plate exit end (320B) and the some die cavity holes (322) being located at molten bath, described die cavity holes (322) distance matrix die cavity (321) 8-12mm.
8. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 1, it is characterized in that: described extrusion die is in order to prepare automobile vehicle window sealing strip (100), described automobile vehicle window sealing strip (100) is that the matrix (110) be made up of base-material and the wearing layer (120) be made up of high-abrasive material are formed, described matrix comprises left holder (111), right holder (112), bottom (113) and connect bottom and left, the both wings (114) of right holder, described wearing layer (120) is positioned at described left holder (111), the upper surface of right holder (112) and bottom surface (113).
9. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 8, it is characterized in that: described wearing layer (120) is also positioned at the upper surface of described both wings (114).
10. prepare the extrusion die of automobile vehicle window sealing strip as claimed in claim 8, it is characterized in that: described base-material is software TPV, hardness is shore A68-shore A75; Described high-abrasive material is hardware TPV, and hardness is shore D43-shore D50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010564346.6A CN102476441B (en) | 2010-11-30 | 2010-11-30 | Extrusion die of automobile vehicle window sealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010564346.6A CN102476441B (en) | 2010-11-30 | 2010-11-30 | Extrusion die of automobile vehicle window sealing strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102476441A CN102476441A (en) | 2012-05-30 |
| CN102476441B true CN102476441B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010564346.6A Expired - Fee Related CN102476441B (en) | 2010-11-30 | 2010-11-30 | Extrusion die of automobile vehicle window sealing strip |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085095B (en) * | 2014-06-27 | 2016-03-23 | 申雅密封件有限公司 | The mouth mold of the weather strip for automobile of the shaping two kinds of sections of a kind of energy |
| CN104275787B (en) * | 2014-10-30 | 2017-06-13 | 长城汽车股份有限公司 | Weather strip for automobile production mould |
| CN114801115A (en) * | 2022-04-06 | 2022-07-29 | 福建福耀汽车饰件有限公司 | Hollow sealing strip extrusion die |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5326592A (en) * | 1991-05-13 | 1994-07-05 | Gencorp Inc. | On die solution coating of extruded profiles and apparatus therefor |
| CN201446677U (en) * | 2009-06-24 | 2010-05-05 | 河北新华欧亚汽配集团有限公司 | Special mould for producing seal strips of automobile glass guide slots |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0531785A (en) * | 1991-07-30 | 1993-02-09 | Kinugawa Rubber Ind Co Ltd | Manufacture of weatherstrip |
| JP3254410B2 (en) * | 1997-10-14 | 2002-02-04 | 鬼怒川ゴム工業株式会社 | Extruder unit |
| JP2000246781A (en) * | 1999-02-26 | 2000-09-12 | Kinugawa Rubber Ind Co Ltd | Mouthpiece structure for composite extrusion-molding |
-
2010
- 2010-11-30 CN CN201010564346.6A patent/CN102476441B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5326592A (en) * | 1991-05-13 | 1994-07-05 | Gencorp Inc. | On die solution coating of extruded profiles and apparatus therefor |
| CN201446677U (en) * | 2009-06-24 | 2010-05-05 | 河北新华欧亚汽配集团有限公司 | Special mould for producing seal strips of automobile glass guide slots |
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| CN102476441A (en) | 2012-05-30 |
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Effective date of registration: 20190709 Address after: 100020 Beijing Chaoyang District East Third Ring Road 39 Courtyard 18 Building 9, 1012 Patentee after: CIC Jingan (Beijing) Investment Co.,Ltd. Address before: 518118 BYD Road, Pingshan New District, Shenzhen, Guangdong 3009 Patentee before: BYD Co.,Ltd. |
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Granted publication date: 20150325 Termination date: 20211130 |