CN109571821A - A kind of die mold desing method with EPDM sponge calymma pipe compound sealing strip - Google Patents
A kind of die mold desing method with EPDM sponge calymma pipe compound sealing strip Download PDFInfo
- Publication number
- CN109571821A CN109571821A CN201811374892.6A CN201811374892A CN109571821A CN 109571821 A CN109571821 A CN 109571821A CN 201811374892 A CN201811374892 A CN 201811374892A CN 109571821 A CN109571821 A CN 109571821A
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- China
- Prior art keywords
- sealing strip
- pipe
- auxiliary line
- software
- auxiliary
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3835—Designing moulds, e.g. using CAD-CAM
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of die mold desing method with EPDM sponge calymma pipe compound sealing strip, include the following steps: the three-dimensional structure data model that sealing strip is constructed by CAE software；The three-dimensional structure data model of sealing strip is imported into Marc software；Auxiliary line and outer auxiliary line in being arranged in Marc software；First auxiliary segment and the second auxiliary segment are set in Marc software；The top that two inner walls of metallic framework are arranged in Marc software is the center of circle；A deformation simulative is sealed by Marc software；The distressed structure for obtaining sealing strip is the structure of mouth mold.The deformation that can determine the joint portion of sandwich rubber and closely knit glue well, is well matched with the Oral incision of compound sealing strip, and debugging cost and the time of mold is greatly saved.
Description
Technical field
The present invention relates to a kind of die mold desing methods of sealing strip, multiple with EPDM sponge calymma pipe more particularly, to one kind
Close the die mold desing method of sealing strip.
Background technique
In Rubber Seal Strip for Automobile development process, die mold desing is very the key link.In die mold desing, three are had
The die mold desing of the compound sealing strip of first second third (EPDM) sponge calymma pipe is complicated, the reason is as follows that:
1. sandwich rubber is different from the expansion rate of closely knit glue, the expansion rate of sandwich rubber is generally 10%-20% bigger than closely knit glue.Design mouth mold
When need to separately design sandwich rubber and closely knit glue position, i.e., sandwich rubber part is reduced, closely knit glue part amplification.Two kinds of sizing materials
The deformation behavior shown after squeezing out vulcanization is very different, and engaging both glue smoothly just becomes such production
The difficult point of product design.
2. sandwich rubber has both 2 processes of vulcanization and foaming after the extrusion, change in shape is more significant, tubular to sponge calymma
The control of shape difficulty with higher.
The mouth mold with EPDM sponge calymma pipe compound sealing strip of a set of qualification is designed due to the above reasons,.Past mouth
Mould engineer rule of thumb designs Oral incision using CAD software, can not determine the joint portion deformation of sandwich rubber and closely knit glue, needs
It repeatedly to manufacture experimently and modify, so that early development stage debug time is long, it is costly, therefore bring very big man power and material's
Waste.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of mouth molds with EPDM sponge calymma pipe compound sealing strip
Design method can determine the deformation at the joint portion of sandwich rubber and closely knit glue well, be well matched with the mouth mold of compound sealing strip
Debugging cost and the time of mold is greatly saved in shape.
The technical scheme of the invention to solve the technical problem is: a kind of compound close with EPDM sponge calymma pipe
The die mold desing method of strip of paper used for sealing, includes the following steps:
1) the three-dimensional structure data model of sealing strip is constructed by CAE software, the sealing strip includes that bubble is managed and be located to bubble
At the clamping part of inverted u-shaped structure below pipe, the metallic framework of inverted u-shaped structure is provided in the clamping part；
2) the three-dimensional structure data model of sealing strip is imported into Marc software；
3) auxiliary line and outer auxiliary line in being arranged in Marc software, the outer auxiliary line are arranged along curve on the outside of bubble pipe,
The interior auxiliary line is formed after bubble pipe inside curve scaling 80% ~ 90%；
4) the first auxiliary segment and the second auxiliary segment, first auxiliary segment and the second auxiliary are set in Marc software
Line segment is located at the bottom of two inner walls of metallic framework；
5) top that two inner walls of metallic framework are arranged in Marc software is the center of circle；
6) deformation simulative is sealed by Marc software, steeps the centroid of auxiliary line other than pipe as scaling center, with 80% ~
90% scaling steeps pipe, so that bubble pipe inside curve is overlapped with interior auxiliary line；
7) clamping part is using the center of circle being arranged in step 5) as rotation center, be arranged in step 4) the first auxiliary segment, second
Auxiliary segment rotates 10 ° to two sides for rigid body；
8) distressed structure for obtaining sealing strip is the structure of mouth mold.
The further preferred embodiment of the present invention: it in step 3), steeps interior auxiliary described in being formed after pipe inside curve scales 85%
Index contour steeps pipe in step 6) with 85% scaling, so that bubble pipe inside curve is overlapped with interior auxiliary line；
The further preferred embodiment of the present invention: it is the center of circle that metallic framework bending segment is arranged in step 5) by one end of near wall.
Compared with the prior art, the advantages of the present invention are as follows do not need to produce and process out finished product die.But it is soft by CAE
Part establishes desired sealing strip three-dimensional structure data model.It is sealed the Deformation Characteristics Analysis of item by Marc software, obtains
The design shape of sealing strip mouth mold.The Virtual Realization of compound sealing strip die mold desing, be greatly saved mold debugging cost and
Time avoids the waste of unnecessary manpower and material resources.In specific design, bubble pipe is made of sandwich rubber, is passed through after extrusion
Over cure and foaming, are just able to satisfy design requirement.Therefore, the Oral incision of sponge calymma pipe will reduce according to a certain percentage.Root
According to the expansion rate of sandwich rubber, sponge calymma pipe scaling is 80-90%.Clamping part is made of closely knit glue, wherein vanelets it
Between the shortest distance be 1.0 millimeters, the thin-wall metal intensity of mouth mold cannot be met the requirements, while be difficult the runner of connection and reasonable arrangement,
Therefore clamping part is unfolded 20 °.And according to the actual situation, rigid body and the center of circle are devised.
Detailed description of the invention
Fig. 1 is the original crustal stress schematic diagram that sealing strip is constructed by CAE software；
Fig. 2 is sealing strip die mold desing method schematic diagram in Marc software；
Fig. 3 is the model of sealing strip section in Marc software；
Fig. 4 is the analog result of sealing strip section in Marc software；
Fig. 5 is sealing strip mouth mold section figure compared with original crustal stress.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
It is as shown in Figures 1 to 5: a kind of die mold desing method with EPDM sponge calymma pipe compound sealing strip, including such as
Lower step:
1) the three-dimensional structure data model of sealing strip is constructed by CAE software, sealing strip includes bubble pipe 1 and is located under bubble pipe 1
Side is provided with the metallic framework 3 of inverted u-shaped structure in clamping part 2 at the clamping part 2 of inverted u-shaped structure；
2) the three-dimensional structure data model of sealing strip is imported into Marc software；
3) auxiliary line 5 and outer auxiliary line 4, outer auxiliary line 4 are arranged along bubble 1 outside curve of pipe in being arranged in Marc software, bubble
Auxiliary line 5 in being formed after 1 inside curve of pipe scaling 80% ~ 90%；
4) the first auxiliary segment 9 and the second auxiliary segment 10, the first auxiliary segment 9 and the second auxiliary line are set in Marc software
Section 10 is located at the bottom of 3 two inner walls of metallic framework；
5) top that 3 two inner walls of metallic framework are arranged in Marc software is the center of circle 7；
6) deformation simulative being sealed by Marc software, the centroid 6 of auxiliary line 4 is used as scaling center other than bubble pipe 1, with
80% ~ 90% scaling steeps pipe 1, so that bubble 1 inside curve of pipe is overlapped with interior auxiliary line 5；
7) clamping part 2 with the center of circle 7 that is arranged in step 5) for rotation center, be arranged in step 4) the first auxiliary segment 9,
Two auxiliary segments 10 rotate 10 ° to two sides for rigid body；
8) distressed structure for obtaining sealing strip is the structure of mouth mold.
In step 3), interior auxiliary line 5 is formed after bubble 1 inside curve of pipe scaling 85%, in step 6), with 85% ratio
Scaling bubble pipe 1, so that bubble 1 inside curve of pipe is overlapped with interior auxiliary line 5；
It is the center of circle 7 that 3 bending segment of metallic framework is arranged in step 5) by one end of near wall.
1 die mold desing of sponge calymma pipe: outer auxiliary line 4 and interior auxiliary line 5 is respectively set in outside in bubble pipe 1, auxiliary in addition
The centroid 6 of index contour 4 is used as scaling center, scales bubble 1 section of pipe with scaling 85%, so that 1 inside of bubble pipe and interior auxiliary line 5
It is overlapped, avoids and section defect occur using the sealing strip mouth mold of CAD software design.The die mold desing of closely knit glue clamping part 2:
The first auxiliary segment 9, the second auxiliary segment 10 is respectively set as rigid body, with inner wall in 3 two sides of metallic framework of clamping part 2
Top is the center of circle 7, and clamping part 2 is rotated 10 ° to two sides, avoids and is broken using the sealing strip mouth mold of CAD software design
Defect, so that the distance between the vanelets inside clamping part 2 meet metal strength requirement, the runner of connection and reasonable arrangement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (3)
1. a kind of die mold desing method with EPDM sponge calymma pipe compound sealing strip, it is characterised in that include the following steps:
The three-dimensional structure data model of sealing strip is constructed by CAE software, the sealing strip includes that bubble pipe is managed and be located to bubble
Lower section is provided with the metallic framework of inverted u-shaped structure in the clamping part at the clamping part of inverted u-shaped structure；
The three-dimensional structure data model of sealing strip is imported into Marc software；
Auxiliary line and outer auxiliary line in being arranged in Marc software, the outer auxiliary line are arranged along curve on the outside of bubble pipe, bubble
The interior auxiliary line is formed after pipe inside curve scaling 80% ~ 90%；
First auxiliary segment and the second auxiliary segment, first auxiliary segment and the second auxiliary line are set in Marc software
Section is located at the bottom of two inner walls of metallic framework；
The top that two inner walls of metallic framework are arranged in Marc software is the center of circle；
It is sealed a deformation simulative by Marc software, steeps the centroid of auxiliary line other than pipe as scaling center, with 80% ~ 90%
Scaling steep pipe so that bubble pipe inside curve be overlapped with interior auxiliary line；
Clamping part is using the center of circle being arranged in step 5) as rotation center, with the first auxiliary segment, second auxiliary being arranged in step 4)
Index contour section rotates 10 ° to two sides for rigid body；
The distressed structure for obtaining sealing strip is the structure of mouth mold.
2. a kind of die mold desing method with EPDM sponge calymma pipe compound sealing strip according to claim 1, special
Sign is in step 3), the interior auxiliary line is formed after bubble pipe inside curve scaling 85%, in step 6), with 85% ratio
Example scaling bubble pipe, so that bubble pipe inside curve is overlapped with interior auxiliary line.
3. a kind of die mold desing method with EPDM sponge calymma pipe compound sealing strip according to claim 1, special
Sign is that it is the center of circle that metallic framework bending segment is arranged in step 5) by one end of near wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374892.6A CN109571821B (en) | 2018-11-19 | 2018-11-19 | Design method of die with EPDM (ethylene-propylene-diene monomer) sponge rubber bubble tube composite sealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374892.6A CN109571821B (en) | 2018-11-19 | 2018-11-19 | Design method of die with EPDM (ethylene-propylene-diene monomer) sponge rubber bubble tube composite sealing strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109571821A true CN109571821A (en) | 2019-04-05 |
| CN109571821B CN109571821B (en) | 2020-08-14 |
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ID=65923194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811374892.6A Active CN109571821B (en) | 2018-11-19 | 2018-11-19 | Design method of die with EPDM (ethylene-propylene-diene monomer) sponge rubber bubble tube composite sealing strip |
Country Status (1)
| Country | Link |
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| CN (1) | CN109571821B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997875A (en) * | 2021-11-05 | 2022-02-01 | 建新赵氏科技有限公司 | Novel electric automobile trunk clearance sealing strip structure |
Citations (6)
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|---|---|---|---|---|
| JP2002219945A (en) * | 2000-12-13 | 2002-08-06 | Hutchinson Sa | Method for manufacturing seal strip and seal strip obtained by this method |
| WO2004082974A1 (en) * | 2003-03-18 | 2004-09-30 | Meteor Gummiwerke K.H. Bädje GmbH & Co. KG | Sealing strip for a vehicle frame structure |
| CN203832391U (en) * | 2014-04-22 | 2014-09-17 | 上海通用汽车有限公司 | Automobile trunk sealing strip |
| CN205148853U (en) * | 2015-11-28 | 2016-04-13 | 申雅密封件（淮安）有限公司 | Make up small cross section sealing strip bush of extruding by ebonite and sponge rubber |
| CN107869585A (en) * | 2017-12-14 | 2018-04-03 | 常州荣南橡胶科技有限公司 | A kind of weather strip for automobile of service life length |
| CN108247918A (en) * | 2017-12-26 | 2018-07-06 | 建新赵氏集团有限公司 | A kind of design method of weather strip for automobile section mouth mold |
-
2018
- 2018-11-19 CN CN201811374892.6A patent/CN109571821B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002219945A (en) * | 2000-12-13 | 2002-08-06 | Hutchinson Sa | Method for manufacturing seal strip and seal strip obtained by this method |
| WO2004082974A1 (en) * | 2003-03-18 | 2004-09-30 | Meteor Gummiwerke K.H. Bädje GmbH & Co. KG | Sealing strip for a vehicle frame structure |
| CN203832391U (en) * | 2014-04-22 | 2014-09-17 | 上海通用汽车有限公司 | Automobile trunk sealing strip |
| CN205148853U (en) * | 2015-11-28 | 2016-04-13 | 申雅密封件（淮安）有限公司 | Make up small cross section sealing strip bush of extruding by ebonite and sponge rubber |
| CN107869585A (en) * | 2017-12-14 | 2018-04-03 | 常州荣南橡胶科技有限公司 | A kind of weather strip for automobile of service life length |
| CN108247918A (en) * | 2017-12-26 | 2018-07-06 | 建新赵氏集团有限公司 | A kind of design method of weather strip for automobile section mouth mold |
Non-Patent Citations (2)
| Title |
|---|
| 吴志刚: "汽车密封条挤出成形模拟仿真与口模优化设计", 《工程科技Ⅱ辑》 * |
| 周致宏等: "轿车橡胶密封条挤出口型设计", 《橡胶工业》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113997875A (en) * | 2021-11-05 | 2022-02-01 | 建新赵氏科技有限公司 | Novel electric automobile trunk clearance sealing strip structure |
| CN113997875B (en) * | 2021-11-05 | 2024-05-24 | 建新赵氏科技股份有限公司 | Novel electric automobile trunk clearance sealing strip structure |
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| Publication number | Publication date |
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| CN109571821B (en) | 2020-08-14 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20201215 Address after: 315600 No. 281 North Keyuan Road, Taoyuan Street, Ninghai County, Ningbo City, Zhejiang Province Patentee after: JX ZHAO'S Group Corp. Address before: 315600 No. 281 North Keyuan Road, Taoyuan Street, Ninghai County, Ningbo City, Zhejiang Province Patentee before: JIANXIN ZHAO'S Group Corp. |
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Address after: 315600 No. 2299, Xuemian North Road, Taoyuan Street, Ninghai County, Ningbo City, Zhejiang Province Patentee after: Jianxin Zhaoshi Technology Co.,Ltd. Address before: 315600 No. 281 North Keyuan Road, Taoyuan Street, Ninghai County, Ningbo City, Zhejiang Province Patentee before: JX ZHAO'S Group Corp. |
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