CN102476441A - Extrusion die of automobile vehicle window sealing strip - Google Patents
Extrusion die of automobile vehicle window sealing strip Download PDFInfo
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- CN102476441A CN102476441A CN2010105643466A CN201010564346A CN102476441A CN 102476441 A CN102476441 A CN 102476441A CN 2010105643466 A CN2010105643466 A CN 2010105643466A CN 201010564346 A CN201010564346 A CN 201010564346A CN 102476441 A CN102476441 A CN 102476441A
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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 and use the seal field, relate in particular to a kind of extrusion die of automotive window sealing strip.
Background technology
Along with the develop rapidly of Hyundai Motor industry, Hyundai Motor is increasingly high to the requirement of material, and especially with the sealing strip of glass contact, traditional ethylene propylene diene rubber (EPDM) can not satisfy the automotive engineering standard of increasingly stringent.TPV (TPV) is a new material, the high resiliency of existing rubber, the secondary application performance that again thermoplastic plastic is arranged and had; Have good weatherability, resistance to chemical attack, easy to process, characteristics such as pollution-free are applied in and can either alleviate tare in the automotive window sealing strip, play environmental and durable effect again.
The method of main at present employing TPV extrusion molding prepares the automotive window sealing strip; Extrusion molding is meant that material passes through the effect between extruder barrel and screw rod; The limit receives thermoplastification; The limit is pushed forward by screw rod, processes a kind of processing method of various cross sections goods or semi-products continuously through the mould in the head.Because plastics have bigger flowage friction resistance in the molten condition current downflow; And the automotive window sealing strip is complicated because of its cross section, and the turning is many, causes melting charge corner in mold cavity to form eddy current easily; Cause the interior melting charge flow velocity of runner inhomogeneous; Make products thickness uneven, form is unstable, and the surface can not reach smooth.
Summary of the invention
The present invention is for solving automotive window sealing strip uneven thickness; Form is unstable; And the surface can not reach smooth technical problem; Provide a kind of melting charge corner in mold cavity that prevents to produce eddy current, the extrusion die of balance melting charge automotive window sealing strip of flow velocity in runner, the automotive window sealing strip that this extrusion die is processed has homogeneous thickness and smooth outward appearance.
The present invention provides a kind of extrusion die for preparing the automotive window sealing strip, comprises mold base and is located at the mould on the mold base;
Said mold base is provided with base-material charging aperture, high-abrasive material charging aperture, base-material discharging opening, high-abrasive material discharging opening;
Said mould successively by advance offset plate, merge plate, die panel links together by extruding direction, every block of plate comprises entrance point, the port of export by extruding direction; Saidly advance offset plate towards said mold base;
Saidly advance offset plate, merge plate and be provided with matrix die cavity that is communicated with said base-material discharging opening and the high-abrasive material runner that is communicated with said high-abrasive material discharging opening, said matrix die cavity formation base-material runner; The corner of said matrix die cavity is provided with the branch muscle, and said base-material runner is divided into some independently base-material runners by said minute muscle; Said matrix die cavity and high-abrasive material runner conflux at said fusion plate exit end; Said 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: be separated into some independently base-material runners to the base-material runner through the branch muscle is set, make the flow velocity of melting charge in each base-material runner identical, and do not scurry the position mutually, help reducing the interfacial stress of melting charge, reduce eddy current; Useful to improving extrusion molding speed, and repair a die conveniently, the automotive window sealing strip quality of producing is even, smooth.
Description of drawings
Fig. 1 is an automotive window sealing strip sectional view provided by the invention.
Fig. 2 is mold base one sketch map provided by the invention.
Fig. 3 is mold base two sketch mapes provided by the invention.
Fig. 4 is the offset plate entrance point sketch map that advances provided by the invention.
Fig. 5 is the offset plate port of export sketch map that advances provided by the invention.
Fig. 6 is the enlarged drawing that advances the matrix die cavity of offset plate provided by the invention.
Fig. 7 is a fusion plate entrance point sketch map provided by the invention.
Fig. 8 is a fusion plate exit end sketch map 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 a die panel sketch map provided by the invention.
Figure 11 is the exploded view of extrusion die provided by the invention.
The specific embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention is solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also Fig. 1, automotive window sealing strip 100 is matrixes 110 of being processed by base-material and is made up of the wearing layer 120 that high-abrasive material is processed.Matrix 110 comprises left holder 111, right holder 112, bottom surface 113 and the both wings 114 that connect bottom surface 113 and left and right holder.Because glass for vehicle window is installed on the bottom surface 113 and by left and right holder clamping,, the upper surface of wearing layer 120 in left holder 111, right holder 112 and bottom surface 113 is set so need do Wear-resistant Treatment at these positions.When automotive window sealing strip 100 was positioned at the vehicle window left and right sides, because glass for vehicle window often slides up and down, therefore the friction of formation and both wings 114 also need do Wear-resistant Treatment at the upper surface of both wings 114, and wearing layer 120 is set; If but automotive window sealing strip 100 is when being positioned at the vehicle window upper and lower sides, the slip that then seldom produces glass for vehicle window, the upper surface of both wings 114 need not be provided with wearing layer.The present invention be positioned at the vehicle window left and right sides the automotive window sealing strip be embodiment.
Said base-material is software TPV, and hardness is Shao Shi A68-Shao Shi A75, preferred Shao Shi A70 degree; Said high-abrasive material is hardware TPV
,Hardness is Shao Shi D43-Shao Shi D50, preferred Shao Shi D45 degree.
The preparation automotive window sealing strip 100 main equipment such as base-material extruder, high-abrasive material extruder and head that adopt make through extrusion molding.The present invention is to provide the extrusion die in the head, other relevant devices can be equipment well-known to those skilled in the art.
Extrusion die provided by the invention is installed in the head, is made up of mold base 200 and the mould of being located on the mold base 200.
See also Fig. 2-3, mold base 200 of the present invention comprises mold base one 200A and mold base two 200B, links together through bolt.The one side that mold base one 200A is relative with mold base two 200B is provided with corresponding runner; After their relative fixed connects; Corresponding runner has formed base-material charging aperture 210 and high-abrasive material charging aperture 220; And these two charging apertures do not communicate, and said base-material charging aperture 210 is connected with the base-material extruder; Said high-abrasive material charging aperture 220 is connected with the high-abrasive material extruder.On mold base two 200B, be formed with the base-material discharging opening 230 that is communicated with base-material charging aperture 210, the high-abrasive material discharging opening 240 that is communicated with high-abrasive material charging aperture 220.
The effect of mold base 200 is base-material and wearing layer materials that the shunting extruder is extruded, and makes it to flow to gently in the mould; Mold base one 200A has inspecting hole 201, inserts the actual temperature that the temperature detection appearance is observed mould during work.
Said mould links into an integrated entity through bolt or pin by advancing offset plate 310, fusion plate 320 and die panel 330 successively, and is installed on the mold base 200, and advances offset plate 310 towards mold base two 200B, and particular location sees also Figure 11.The arrow directions X is for extruding direction among Figure 11, and arrow Y direction is the feedstock direction of base-material and high-abrasive material.
See also Fig. 4-5; Advance offset plate 310 and be respectively into offset plate entrance point 310A and the sketch map that advances offset plate port of export 310B along two ends of Figure 11 arrow directions X; Saidly advance offset plate entrance point 310A towards mold base two 200B, the said offset plate port of export 310B of advancing is towards merging plate 320.
Said to advance offset plate 310 thickness be 12mm, which is provided with the matrix die cavity 311 and the high-abrasive material runner of permeability.Said permeability is meant that matrix die cavity 311 is through to into offset plate port of export 310B from advancing offset plate entrance point 310A.The cross sectional shape of the shape of matrix die cavity 311 and automotive window sealing strip 100 adapts, and is divided into: left holder die cavity, right holder die cavity, bottom surface die cavity and both wings die cavity; Matrix die cavity 311 sizes and the automotive window sealing strip 100 sectional dimension ratios of advancing offset plate are 1.2:1.Matrix die cavity 311 and above-mentioned base-material discharging opening 230 corresponding settings make base-material to reach in the matrix die cavity 311 of offset plate into through base-material discharging opening 230.
The high-abrasive material runner that advances offset plate 310 is communicated with above-mentioned high-abrasive material discharging opening 240; Comprise and be positioned at into first molten bath 313 of offset plate entrance point 310A; Be positioned at into second molten bath 314 of offset plate port of export 310B, and the die cavity hole 312 that is communicated with first molten bath 313 and second molten bath 314.First molten bath 313 of the present invention is shaped as about 1/4 circular ring type groove, and molten bath 313 1 ends are located in die cavity hole 312, above-mentioned high-abrasive material discharging opening 240 corresponding molten baths 313 other ends.High-abrasive material flows in the molten bath 313 and stores through behind the high-abrasive material discharging opening 240, and because the effect of pressure, the high-abrasive material of storage continues to flow in second molten bath 314 of offset plate port of export 310B through die cavity hole 312.
See also Fig. 5, be located at into second molten bath, the 314 employing pawl formula structures of offset plate port of export 310B, comprise molten bath 314A and the molten bath 314B between molten bath 314A and matrix die cavity 311, the centre position of molten bath 314A is located in die cavity hole 312.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 the molten bath 314B.As can beappreciated from fig. 5, molten bath 314B is divided into three parts, lays respectively at left holder die cavity top, right holder die cavity top, bottom surface die cavity and the both wings die cavity top of matrix die cavity 311.The pawl formula structure of the face that falls is adopted in molten bath 314, makes high-abrasive material in runner, can be attached to the base-material surface smoothly, and pawl formula structure helps to disperse melting charge pressure simultaneously, guarantees that melting charge pressure is consistent in the runner.
See also Fig. 6, the present invention is provided with branch muscle 3111 in the corner of the matrix die cavity 311 that advances offset plate.Said corner is meant the corner of corner, bottom surface die cavity and both wings die cavity of left holder die cavity and the corner of both wings die cavity, right holder die cavity and the both wings die cavity of matrix die cavity 311.Matrix die cavity 311 has formed the base-material runner; In matrix die cavity 311 corners branch muscle 3111 being set makes the base-material runner be separated muscle to be divided into some independently base-material runners; These base-material runner mutually noninterferes; Prevent that effectively base-material from producing eddy current around the corner, simultaneously the flow velocity of balance base-material in the matrix die cavity.Divide the thickness of muscle 3111 unsuitable excessive, preferably in the 0.4-0.6mm scope.
See also Fig. 7-8, fusion plate 320 is respectively fusion plate entrance point 320A and merges plate exit end 320B along two ends of Figure 11 arrow directions X, and said fusion plate entrance point 320A is towards advancing offset plate 310, and said fusion plate exit end 320B is towards die panel 330.
Said fusion plate 320 thickness are 10mm, which is provided with the matrix die cavity 321 and the high-abrasive material runner of permeability.Said permeability is meant that matrix die cavity 321 is through to fusion plate exit end 320B from merging plate entrance point 320A.The cross sectional shape of the shape of matrix die cavity 321 and automotive window sealing strip 100 adapts, and is divided into: left holder die cavity, right holder die cavity, bottom surface die cavity and both wings die cavity; Matrix die cavity 321 sizes and the automotive window sealing strip 100 sectional dimension ratios that merge plate are 1.1:1.Matrix die cavity 321 and above-mentioned matrix die cavity 311 corresponding settings of advancing offset plate make base-material to get in the matrix die cavities 321 through matrix die cavity 311.
The high-abrasive material runner that merges plate 320 is communicated with the above-mentioned high-abrasive material runner that advances offset plate 310, comprises the molten bath 323 that is positioned at fusion plate exit end 320B and several die cavity holes 322 that are positioned at molten bath 323.Molten bath 323 is identical with the above-mentioned molten bath 314B shape of advancing offset plate, the position is corresponding; Simultaneously also be divided into three parts, lay respectively at left holder die cavity top, right holder die cavity top, bottom surface die cavity and the both wings die cavity top of matrix die cavity 321.The position away from matrix die cavity 321 should be chosen in the position in die cavity hole 322, like 8-12mm.Because molten bath 323 is corresponding with 314B position, molten bath, die cavity hole 322 is also corresponding with molten bath 314B, makes high-abrasive material get into die cavity hole 322 and flow in the molten bath 323 from molten bath 314B and stores.
See also Fig. 9, with to advance offset plate identical, the present invention also is provided with branch muscle 3211 in the corner of the matrix die cavity 321 that merges plate, and thickness is preferably in the 0.4-0.6mm scope.Divide muscle 3211 roles identical, repeat no more.Under the preferable case; Divide muscle 3211 to adopt partly disconnected form; The said half disconnected base-material runner that is meant that matrix die cavity 321 forms is not separated muscle 3211 and is divided into fully independently base-material runner; Basically between each base-material runner, break off but be not to break off fully, adjacent two base-material runners still can be communicated with but leave certain space.The purpose of dividing muscle 3211 to be arranged to partly break is: test proof through the inventor; Break off (the same) fully if will divide muscle 3211 to be arranged to the branch muscle 3111 that advances offset plate 310; The automotive window sealing strip of then processing 100 is easy to generate the trace that confluxes that influence outward appearance in the corner of the corner of left holder 111 and both wings 114 and right holder 112 and both wings 114, does not produce the trace that confluxes and be because base-material in time is welded together after the outflow of base-material runner to cause.Therefore only need to be provided with in the place that influence outward appearance half disconnected branch muscle, the corner of those place such as bottom surfaces 113 that do not influence outward appearance and both wings 114 can be provided with half disconnected branch muscle, and the branch muscle of disconnection fully also can be set.The distance that partly disconnected its disconnection of branch muscle is set is 0.8 ~ 1.2mm, is preferably 1mm.
Please continue to consult Fig. 8; Conflux at fusion plate exit end 320B with matrix die cavity 321 in molten bath 323; Said confluxing is through the fusion plate body between molten bath 323 and the matrix die cavity 321 is reduced certain altitude; Make molten bath 323 be communicated with matrix die cavity 321, be stored in the molten bath 323 the surface current of high-abrasive material through this reduction to matrix die cavity 321 in base-material conflux.
See also Figure 10, offer the chamber 331 of confluxing of permeability on the die panel 330, the shape in this chamber 331 of confluxing and the shape of automotive window sealing strip 100 are identical, and size is 1.02:1 with the ratio of automotive window sealing strip section.Die panel 330 thickness are 8mm, and base-material and high-abrasive material are after fusion plate exit end 320B confluxes, and through die panel, two kinds of materials promptly are finalized.
Said automotive window sealing strip forming process is; On base-material extruder and high-abrasive material extruder, make base-material and high-abrasive material heated and formed into molten state attitude respectively; Through extrusion die of the present invention, owing to divide the effect of muscle, the base-material under the molten condition gets into the moulding respectively of different base-material runners to the plastics of said molten condition under certain pressure; The each several part of basic forming enters into and continues in the die panel to move then; The edge of each several part is in contact with one another and is welded together automatically, is integrally formed structure, has so just formed the continuous seal bar.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. extrusion die for preparing the automotive window sealing strip is characterized in that:
Said extrusion die comprises mold base (200) and is located at the mould on the mold base; Said mold base (200) is provided with base-material charging aperture (210), high-abrasive material charging aperture (220), base-material discharging opening (230), high-abrasive material discharging opening (240);
Said mould successively by advance offset plate (310), merge plate (320), die panel (330) links together by extruding direction, every block of plate comprises entrance point, the port of export by extruding direction; Saidly advance offset plate (310) towards said mold base (200);
Saidly advance offset plate, merge plate and be provided with matrix die cavity that is communicated with said base-material discharging opening and the high-abrasive material runner that is communicated with said high-abrasive material discharging opening, said matrix die cavity formation base-material runner; The corner of said matrix die cavity is provided with the branch muscle, and said base-material runner is divided into some independently base-material runners by said minute muscle; Said matrix die cavity and high-abrasive material runner conflux at said fusion plate exit end; Said die panel is provided with base-material and the common chamber of confluxing of high-abrasive material.
2. prepare the extrusion die of automotive window sealing strip according to claim 1, it is characterized in that: the branch muscle of the matrix die cavity corner of said fusion plate (320) adopts half disconnected form.
3. like the extrusion die of the said preparation automotive window of claim 2 sealing strip, it is characterized in that: said half disconnected separation breaking of muscle and tendon is opened distance and is 0.8-1.2mm.
4. prepare the extrusion die of automotive window sealing strip according to claim 1 or claim 2, it is characterized in that: said minute muscle thickness is 0.4-0.6mm.
5. prepare the extrusion die of automotive window sealing strip according to claim 1, it is characterized in that: the said high-abrasive material runner that advances offset plate comprises first molten bath (313) that is positioned at offset plate entrance point (310A) into, be positioned at second molten bath (314) of the offset plate port of export into and be communicated with the die cavity hole (312) of first molten bath (313), second molten bath (314).
6. like the extrusion die of the said preparation automotive window of claim 8 sealing strip, it is characterized in that: pawl formula structure is adopted in said second molten bath (314).
7. the extrusion die for preparing the automotive window sealing strip according to claim 1; It is characterized in that: the high-abrasive material runner of said fusion plate comprises the molten bath (323) that is positioned at fusion plate exit end (320B) and some die cavities hole (322) of being located at the molten bath, and said die cavity hole (322) is apart from matrix die cavity (321) 8-12mm.
8. the extrusion die for preparing the automotive window sealing strip according to claim 1; It is characterized in that: said extrusion die is in order to preparation automotive window sealing strip (100); Said automotive window sealing strip (100) is that matrix of being processed by base-material (110) and the wearing layer of being processed by high-abrasive material (120) constitute; Said matrix comprises left holder (111), right holder (112), bottom (113) and the both wings (114) that connect bottom and left and right holder, and said wearing layer (120) is positioned at the upper surface of said left holder (111), right holder (112) and bottom surface (113).
9. like the extrusion die of the said preparation automotive window of claim 8 sealing strip, it is characterized in that: said wearing layer (120) also is positioned at the upper surface of said both wings (114).
10. like the extrusion die of the said preparation automotive window of claim 8 sealing strip, it is characterized in that: said base-material is software TPV, and hardness is Shao Shi A68-Shao Shi A75; Said high-abrasive material is hardware TPV, and hardness is Shao Shi D43-Shao Shi 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 true CN102476441A (en) | 2012-05-30 |
| CN102476441B CN102476441B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085095A (en) * | 2014-06-27 | 2014-10-08 | 申雅密封件有限公司 | Mouth-type mold capable of forming automobile sealing strip with two kinds of sections |
| CN104275787A (en) * | 2014-10-30 | 2015-01-14 | 长城汽车股份有限公司 | Mold for producing automobile sealing strip |
| 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 |
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| JPH0531785A (en) * | 1991-07-30 | 1993-02-09 | Kinugawa Rubber Ind Co Ltd | Manufacture of weatherstrip |
| US5326592A (en) * | 1991-05-13 | 1994-07-05 | Gencorp Inc. | On die solution coating of extruded profiles and apparatus therefor |
| JPH11115031A (en) * | 1997-10-14 | 1999-04-27 | Kinugawa Rubber Ind Co Ltd | Mouthpiece unit of extrusion molding machine |
| JP2000246781A (en) * | 1999-02-26 | 2000-09-12 | Kinugawa Rubber Ind Co Ltd | Mouthpiece structure for composite extrusion-molding |
| 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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2010
- 2010-11-30 CN CN201010564346.6A patent/CN102476441B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| JPH0531785A (en) * | 1991-07-30 | 1993-02-09 | Kinugawa Rubber Ind Co Ltd | Manufacture of weatherstrip |
| JPH11115031A (en) * | 1997-10-14 | 1999-04-27 | Kinugawa Rubber Ind Co Ltd | Mouthpiece unit of extrusion molding machine |
| JP2000246781A (en) * | 1999-02-26 | 2000-09-12 | Kinugawa Rubber Ind Co Ltd | Mouthpiece structure for composite extrusion-molding |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085095A (en) * | 2014-06-27 | 2014-10-08 | 申雅密封件有限公司 | Mouth-type mold capable of forming automobile sealing strip with two kinds of sections |
| CN104275787A (en) * | 2014-10-30 | 2015-01-14 | 长城汽车股份有限公司 | Mold for producing automobile sealing strip |
| 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 |
| CN114801115B (en) * | 2022-04-06 | 2024-07-05 | 福建福耀汽车饰件有限公司 | Hollow sealing strip extrusion die |
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|---|---|
| CN102476441B (en) | 2015-03-25 |
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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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