CN101643019B - Sealing strip for door frame of automobile and manufacturing process thereof - Google Patents
Sealing strip for door frame of automobile and manufacturing process thereof Download PDFInfo
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- CN101643019B CN101643019B CN2009100907501A CN200910090750A CN101643019B CN 101643019 B CN101643019 B CN 101643019B CN 2009100907501 A CN2009100907501 A CN 2009100907501A CN 200910090750 A CN200910090750 A CN 200910090750A CN 101643019 B CN101643019 B CN 101643019B
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- automobile
- sealing strip
- door frame
- exterior trim
- trim layer
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Abstract
The invention provides a sealing strip for the door frame of an automobile and a manufacturing process thereof. The sealing strip comprises a clamping part and a sealing part connected with the clamping part, wherein an exterior trimming layer is arranged on the outer surface of the clamping part, which is close to the interior part of the automobile, and bonded and coated with the exterior trimming layer. The manufacturing process comprises the following steps: (1) vulcanizing the outer surface of clamping part of the molded sealing strip body, which is exposed to the interior part of the automobile; and (2) bonding and coating the vulcanized outer surface with the exterior trimming layer. The sealing strip and the manufacturing process thereof provided by the invention has the advantages of fewer steps, short production line, high production efficiency, low energy consumption, small production area, clean and pollution-free production and low rejection rate.
Description
Technical field
The present invention relates to the auto parts and components processing technique field, particularly a kind of sealing strip for door frame of automobile and manufacturing process thereof.
Background technology
Sealing strip for door frame of automobile is a kind of automobile sealed parts, is installed on automobile door frame seam edge, is used to seal the gap between car door and the door case.The section structure of sealing strip for door frame of automobile is as shown in Figure 1, mainly comprises weatherstrip body, and said weatherstrip body comprises portion of being installed 1 and sealing 2; The portion 1 that wherein is installed is used for sealing strip for door frame of automobile is fixedly mounted on the doorframe of arrangements for automotive doors; Sealing 2 is positioned at a side of the portion of being installed 1 and is attached thereto and connects, and is used in the gap between sealing car door and the door case behind the door shutting.In order to prevent that sealing strip for door frame of automobile from throwing off at work or come off, also can in the portion of being installed 1, embed metallic framework 3 (or being referred to as steel core) usually, to increase its intensity.
And sealing strip for door frame of automobile is not only a kind of sealing member of car door; Or the interior trimming parts of automobile; Its portion 1 that is installed influences the decorative effect in the car near the inboard outside face 6 of car; Therefore, can utilize flocking technique on the outside face 6 of the portion that is installed 1 of sealing strip for door frame of automobile, to plant colored fine hair usually, to embody its decoration functions as the exterior trim layer.Existing flocking technique flow process more complicated; As disclosing a kind of flocking method of automotive upholstery among the Chinese patent document CN1283369C; Comprise a plurality of steps such as surface treatment, gluing, flocking, curing, cleaning, packing; This flocking technique has following shortcoming: 1. because processing step is very loaded down with trivial details, complicated, make production efficiency not high; 2. because process is many, and required flow production line is long, the production floor area is bigger; 3. because process is many, and required production machine is many, and energy consumption is big, productive costs is high; 4. because process is many, and any one procedure all can cause direct influence to the quality of flocking, make the flocking quality unstable, often the reason owing to flocking causes occurrence of waste; 5. and the spray glue step in the integrated artistic also can cause environmental pollution, be unfavorable for environmental protection.
Summary of the invention
For this reason; Technical matters to be solved by this invention is to overcome the flocking technique very complicated of producing sealing strip for door frame of automobile in the prior art; Make that production efficiency is low, energy consumption is big, cost is high, the production floor area is big, seriously polluted; And problem such as reject rate height, and provide that a kind of manufacturing line is short, production efficiency is high, energy consumption is little, the production floor area is little, cleanliness without any pollution and low sealing strip for door frame of automobile and the manufacturing process thereof of reject rate.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is following:
A kind of manufacturing process of sealing strip for door frame of automobile may further comprise the steps,
1. the portion of being installed with the weatherstrip body of forming is exposed at the outside face sulfuration in the car;
2. exterior trim layer bonding is coated on the said outside face after the sulfuration.
In the above-mentioned manufacturing process, the material of said exterior trim layer is a thermoplastic elastomer, and the material of the said portion that is installed is an ethylene propylene diene rubber.
In the above-mentioned manufacturing process, said thermoplastic elastomer is a TPV.
In the above-mentioned manufacturing process, 1. said step is under 220-280 ℃ temperature, to carry out.
In the above-mentioned manufacturing process, 2. said step is under 130-180 ℃ temperature, to carry out.
In the above-mentioned manufacturing process, 2. said step also comprises that 3. step will be coated with the said weatherstrip body cooling of said exterior trim layer, obtain the step of said sealing strip for door frame of automobile afterwards.
In the above-mentioned manufacturing process, 3. said step is water-cooled.
In the above-mentioned manufacturing process, also comprise the step of the exterior trim layer that processes said sealing strip for door frame of automobile before 1. in said step, said exterior trim layer is a sheet, and said exterior trim layer utilizes the TPV extruder for shaping.
A kind of sealing strip for door frame of automobile that utilizes above-mentioned technology to produce, comprise the portion of being installed and with the said portion's bonded assembly sealing that is installed, the said portion that is installed has the exterior trim layer near the outside face in the car, said exterior trim layer bonding is coated on the said outside face.
In the above-mentioned sealing strip for door frame of automobile, the material of said exterior trim layer is a TPV, and the material of the said portion that is installed is an ethylene propylene diene rubber.
Technique scheme of the present invention is compared prior art and is had the following advantages: sealing strip for door frame of automobile 1. of the present invention and manufacturing process thereof; Because the exterior trim layer of the portion that is installed of the weatherstrip body of sealing strip for door frame of automobile adopts thermoplastic elastomer; Need not to adopt flocking technique, thoroughly solved the various defectives of bringing owing to flocking technique; 2. sealing strip for door frame of automobile of the present invention and manufacturing process thereof, step is few, compare manufacturing line length with flocking technique and reduced about 40%, so the production floor area is little, and production efficiency is high; 3. sealing strip for door frame of automobile of the present invention and manufacturing process thereof adopt existing installation can accomplish processing, such as when processing the exterior trim layer, only need utilize common TPV extruder for shaping to get final product, and need not to add new installation, and energy consumption is little, and cost is low; 4. sealing strip for door frame of automobile of the present invention and manufacturing process thereof, step is few, and each procedure is smaller to the influence of product, and reject rate is low; 5. sealing strip for door frame of automobile of the present invention and manufacturing process thereof need not to spray glue, and cleanliness without any pollution is beneficial to environmental protection.
Description of drawings
For content of the present invention is more clearly understood, below according to a particular embodiment of the invention and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is the sectional schematic diagram of existing sealing strip for door frame of automobile;
Fig. 2 is the sectional schematic diagram of sealing strip for door frame of automobile of the present invention.
Reference numeral is expressed as among the figure: the 1-portion that is installed, and the 2-sealing, the 3-metallic framework, 4-exterior trim layer, 5-seals tooth, 6-outside face.
The specific embodiment
Sealing strip for door frame of automobile as shown in Figure 2, as to the present invention relates to comprises weatherstrip body, and said weatherstrip body comprises the portion of being installed 1, sealing 2, and assembly is at the said portion's 1 in-to-in metallic framework 3 that is installed; The said portion 1 that is installed has sealing tooth 5; Said sealing 2 is positioned at a side of the said portion 1 that is installed, and is connected with the said portion 1 that is installed, and the material of said sealing 2 is a gelatin sponge.
Embodiment one
The manufacturing process of the sealing strip for door frame of automobile that present embodiment provides is the good said weatherstrip body of machine-shaping to be reprocessed finally produce sealing strip for door frame of automobile, may further comprise the steps:
1. the said portion 1 that is installed with the said weatherstrip body of forming is exposed at outside face 6 sulfurations in the car: the material of the said portion that is installed is that ethylene propylene diene rubber (is EPDM; Ethylene-Propylene-DieneMonomer); The said portion 1 that is installed is put into the dry heat cure case, under 240 ℃ temperature, said outside face 6 is vulcanized;
2. exterior trim layer 4 bonding is coated on the said outside face 6 of the said portion 1 that is installed after the sulfuration: said exterior trim layer 4 is sheet; The material of said exterior trim layer 4 be thermoplastic elastomer (be TPE, thermoplasticelastomer), in the present embodiment; It (is TPV that said thermoplastic elastomer is specially TPV; Thermoplastic Vulcanizate), under 150 ℃ temperature, utilize suitable frock that said exterior trim layer 4 is thermally bonded on the said outside face 6;
3. will be coated with the said weatherstrip body cooling of said exterior trim layer 4; Obtain said sealing strip for door frame of automobile: the said weatherstrip body that will be coated with said exterior trim layer 4 is as in the bosh; Utilize cooling water expansion tank said weatherstrip body to be cooled off (being water-cooled), just obtain said sealing strip for door frame of automobile afterwards.
Embodiment two
The manufacturing process of the sealing strip for door frame of automobile that present embodiment provides may further comprise the steps:
A. process the said exterior trim layer 4 of said sealing strip for door frame of automobile: utilize TPV extruder (being general T PV extruder) with said exterior trim layer 4 extrusion molding;
B. the said portion 1 that is installed with the said weatherstrip body of forming is exposed at outside face 6 sulfurations in the car: the material of the said portion that is installed is that ethylene propylene diene rubber (is EPDM; Ethylene-Propylene-DieneMonomer); The said portion 1 that is installed is put into the dry heat cure case, under 260 ℃ temperature, said outside face 6 is vulcanized;
C. exterior trim layer 4 bonding is coated on the said outside face 6 of the said portion 1 that is installed after the sulfuration: said exterior trim layer 4 is sheet; The material of said exterior trim layer 4 be thermoplastic elastomer (be TPE, thermoplasticelastomer), in the present embodiment; It (is TPV that said thermoplastic elastomer is specially TPV; Thermoplastic Vulcanizate), under 130 ℃ temperature, utilize suitable frock that said exterior trim layer 4 is thermally bonded on the said outside face 6;
D. will be coated with the said weatherstrip body cooling of said exterior trim layer 4; Obtain said sealing strip for door frame of automobile: the said weatherstrip body that will be coated with said exterior trim layer 4 is as in the bosh; Utilize cooling water expansion tank that said weatherstrip body is cooled off, just obtain said sealing strip for door frame of automobile afterwards.
Embodiment three
The manufacturing process of the sealing strip for door frame of automobile that present embodiment provides may further comprise the steps:
I. process the said exterior trim layer 4 of said sealing strip for door frame of automobile: utilize TPV extruder (being general T PV extruder) with said exterior trim layer 4 extrusion molding;
II. the said portion 1 that is installed with the said weatherstrip body of forming is exposed at outside face 6 sulfurations in the car: the material of the said portion that is installed is that ethylene propylene diene rubber (is EPDM; Ethylene-Propylene-DieneMonomer); The said portion 1 that is installed is put into the dry heat cure case, under 280 ℃ temperature, said outside face 6 is vulcanized;
III. exterior trim layer 4 bonding is coated on the said outside face 6 of the said portion 1 that is installed after the sulfuration: said exterior trim layer 4 is sheet; The material of said exterior trim layer 4 is thermoplastic elastomer (being TPE, thermoplastic elastomer), in the present embodiment; It (is TPV that said thermoplastic elastomer is specially TPV; Thermoplastic Vulcanizate), under 180 ℃ temperature, utilize suitable frock that said exterior trim layer 4 is thermally bonded on the said outside face 6;
IV. will be coated with the said weatherstrip body cooling of said exterior trim layer 4; Obtain said sealing strip for door frame of automobile: the said weatherstrip body that will be coated with said exterior trim layer 4 is as in the bosh; Utilize cooling water expansion tank that said weatherstrip body is cooled off, just obtain said sealing strip for door frame of automobile afterwards.
In other embodiments, the step of embodiment one 2., the range of temperatures among the Step II I of the step c of embodiment two and embodiment three is 130 ℃-180 ℃.Because when temperature was lower than 130 ℃, the TPV material can not react, and can not be adhered on the said outside face 6; And temperature is when being higher than 180 ℃, and the TPV material flowability is too high, near liquid state, even is degraded to other materials, can't use.Therefore, in 130 ℃-180 ℃ range of temperatures, can keep the good physical property of TPV material, bond readily on the said outside face 6.
In other embodiments, the range of temperatures in the Step II of the step b of embodiment two and embodiment three is 220 ℃-280 ℃.Because the material of the said portion 1 that is installed is EPDM, when temperature was lower than 220 ℃, the said outside face 6 of the said portion 1 that is installed can not vulcanize fully; And temperature will cause product rejection near the burning-point of rubber when being higher than 280 ℃.Therefore, in 220 ℃-280 ℃ range of temperatures, can guarantee that EPDM material sulfuration can not influence product design fully again, thereby get ready for next step.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (3)
1. the manufacturing process of a sealing strip for door frame of automobile is characterized in that: may further comprise the steps,
A. process the exterior trim layer (4) of said sealing strip for door frame of automobile: utilize the TPV extruder with said exterior trim layer (4) extrusion molding;
B. the portion that is installed (1) with the weatherstrip body of forming is exposed at outside face (6) sulfuration in the car: the material of the said portion that is installed (1) is an ethylene propylene diene rubber; The said portion that is installed (1) is put into the dry heat cure case, under 260 ℃ temperature, said outside face (6) is vulcanized;
C. said exterior trim layer (4) bonding is coated on the said outside face (6) of the said portion that is installed (1) after the sulfuration: said exterior trim layer (4) is sheet; The material of said exterior trim layer (4) is a TPV; Under 130 ℃ temperature, utilize frock that said exterior trim layer (4) is thermally bonded on the said outside face (6);
D. will be coated with the said weatherstrip body cooling of said exterior trim layer (4); Obtain said sealing strip for door frame of automobile: the said weatherstrip body that will be coated with said exterior trim layer (4) is as in the bosh; Utilize cooling water expansion tank that said weatherstrip body is cooled off, just obtain said sealing strip for door frame of automobile afterwards.
2. sealing strip for door frame of automobile that utilizes the described technology of claim 1 to produce; It is characterized in that: comprise the portion of being installed and with the said portion's bonded assembly sealing that is installed; The said portion that is installed has the exterior trim layer near the outside face in the car, and said exterior trim layer bonding is coated on the said outside face.
3. sealing strip for door frame of automobile according to claim 2 is characterized in that: the material of said exterior trim layer is a TPV, and the material of the said portion that is installed is an ethylene propylene diene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100907501A CN101643019B (en) | 2009-08-10 | 2009-08-10 | Sealing strip for door frame of automobile and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100907501A CN101643019B (en) | 2009-08-10 | 2009-08-10 | Sealing strip for door frame of automobile and manufacturing process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101643019A CN101643019A (en) | 2010-02-10 |
| CN101643019B true CN101643019B (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100907501A Active CN101643019B (en) | 2009-08-10 | 2009-08-10 | Sealing strip for door frame of automobile and manufacturing process thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102689330B (en) * | 2012-05-30 | 2014-04-30 | 北京万源瀚德汽车密封系统有限公司 | Punching device preventing automobile sealing strip with skeleton from machining deformation |
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