Thormobend shaping method of rubber sealing strip for automobile door window and its mould

A technology of rubber sealing strips and glass woolen grooves, which can be applied to home appliances, other home appliances, applications, etc. It can solve the problems of color difference at the corners, wrinkles at the corners, and high design costs, so as to improve the pass rate and speed up the development cycle. , The effect of saving processing costs

Active Publication Date: 2007-07-18
萨固密渝锦(重庆)橡塑制品有限公司
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AI Technical Summary

Problems solved by technology

[0002] The angle between the glass groove rubber sealing strip for automobile doors and windows and the car body is small, and it is easy to deform during assembly, causing wrinkles at the corners, and the assembly is not in place. Therefore, in the production of sealing strips, it is necessary to use molds to process the assembly shape of the sealing strips. In the past, the corners of products usually use rubber vulcanization injection molding molds, which are suitable for more complex shapes of products. For example, the decorative edge at the corner of the product is longer than the decorative edge of the base, and it needs to cover the ribs. The structure of this type of mold is complex. The design cost is high, the processing cost cycle is long, the workload of the mold maintenance is heavy, and the post-injection parts will leave ugly joint marks, color difference at the joint corners, and poor appearance quality

Method used

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  • Thormobend shaping method of rubber sealing strip for automobile door window and its mould

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the present invention is further described, as shown in Fig. 1, Fig. 2:

[0025] A method for hot-bending forming of a glass woolen rubber sealing strip for automobile doors and windows, comprising the following steps:

[0026] a) Extrude, pull, vulcanize and cool at 280°C with a rubber extruder, and cut the rubber sealing strip with a vulcanization degree of 70% to 80% to the required length, and draw a line on the part to be bent;

[0027] b) Position the rubber sealing strip on the forming mold according to the marked position, heat to 240-260°C, and vulcanize for 4-8 minutes;

[0028] c) Open the mold, take out the rubber sealing strip, let it cool down naturally, and complete the hot-bending forming of the rubber sealing strip.

[0029] The scribed line in the described step a is to locate the scribed line by the model.

[0030] The heating in the step b is on a flat vulcanizing machine, pressurized, heated and vulc...

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Abstract

The present invention discloses a thermobending setting method of glass guide channel rubber weather strip for automobile door and window and its mould. Said method includes the following steps: (a), marking out on the position of rubber weather strip extruded and vulcanized by rubber extruding machine and said position can be thermally bent; (b), positioning the rubber weather strip on the setting mould, heating and vulcanizing; and (c), taking out said rubber weather strip, naturally cooling so as to implement thermobending setting operation. Said mould includes bending-setting mould, movable mould and lower template.

Description

technical field [0001] The invention relates to a hot-bending forming method of a glass groove rubber sealing strip for automobile doors and windows and a mold thereof. Background technique [0002] The angle between the glass groove rubber sealing strip for automobile doors and windows and the car body is small, and it is easy to deform during assembly, causing wrinkles at the corners, and the assembly is not in place. Therefore, in the production of sealing strips, it is necessary to use molds to process the assembly shape of the sealing strips. In the past, the corners of products usually use rubber vulcanization injection molding molds, which are suitable for more complex shapes of products. For example, the decorative edge at the corner of the product is longer than the decorative edge of the base, and it needs to cover the ribs. The structure of this type of mold is complex. The design cost is high, the processing cost cycle is long, and the mold maintenance workload i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C53/02B29C53/80B29C53/84B29C35/02B29L31/26
Inventor 李洪均周中杰周先梅刘莉农邓明香
Owner 萨固密渝锦(重庆)橡塑制品有限公司
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