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Technique for forming rubber dam

A molding process and rubber dam technology, which is applied to household components, household appliances, and other household appliances, can solve the problems of high probability of water seepage, difficulty of leveling, and affecting the overall appearance of the rubber dam, so as to achieve easy leveling, The effect of uniform force and reducing the chance of water seepage

Inactive Publication Date: 2007-12-26
青岛华海环保工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As shown in attached drawings 1 and 2, the thickness of the overlapping seam is twice that of the non-lapping seam in this type of lap joint. If the seam is too thick, it will affect the overall appearance of the rubber dam, and when the rubber dam is installed, it will be difficult to level it. , leading to a high probability of water seepage

Method used

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  • Technique for forming rubber dam

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Embodiment 1

[0020] As shown in Figures 3 and 4, the molding process of the rubber dam according to the present invention is as follows: the rubber 1, the canvas 2, and the rubber are arranged and calendered at intervals up and down to form the rubber cloth 3, and the two layers of the rubber cloth 3 are staggered and formed in different stages to form the dam piece 4 , the upper part of the dam piece 4 is also calendered with an outer glue 5, one end of the dam piece 4 is a step-shaped seam, and the other end is an inverted step-shaped seam, in order to reduce the thickness of the seam, cut off the seam In order to make the dam piece bond firmly, the outer layer glue 5 of the dam piece is roughened at the seam, and the dam piece 4 is relatively overlapped and vulcanized successively to form a rubber dam. In order to make the sealing effect of the rubber dam better, a sealing rubber strip 6 is pasted on the outside of the seams of two adjacent dam pieces.

Embodiment 2

[0022] As shown in Figures 5 and 6, the rubber dam molding process of the present invention is as follows: arrange the rubber 1, the canvas 2, and the rubber at intervals up and down to form the rubber cloth 3, and arrange the two layers of the rubber cloth 3 in a staggered manner to form the dam piece 4 , the upper part of the dam piece 4 is also calendered with an outer glue 5, one end of the dam piece 4 is a step-shaped seam, and the other end is an inverted step-shaped seam, in order to reduce the thickness of the seam, cut off the seam The outer layer of glue 5, in order to make the dam sheet bonded firmly, can roughen the overlapping seams, and the dam sheet 4 is relatively overlapped and vulcanized successively to form a rubber dam. In order to make the sealing effect of the rubber dam better, a sealing rubber strip 6 is pasted on the outside of the seams of two adjacent dam pieces.

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Abstract

The invention discloses a rubber dam forming technology. It includes the following steps: rolling the rubber, canvas into rubber cloth; processing staggered array for the at least two layers of rubber cloths to form dam sheet; orderly jointing and curing to form rubber dam. Thus the invention can greatly reduce water leak probability,and make stress evenly.

Description

technical field [0001] The invention relates to a rubber dam molding process. Background technique [0002] At present, the rubber dams on the market are formed by direct lap vulcanization of the dam pieces formed one by one. As shown in attached drawings 1 and 2, the thickness of the overlapping seam is twice that of the non-lapping seam in this type of lap joint. If the seam is too thick, it will affect the overall appearance of the rubber dam, and when the rubber dam is installed, it will be difficult to level it. , leading to a high probability of water seepage. Contents of the invention [0003] The object of the present invention is to provide a rubber dam forming process, and the rubber dam processed by the forming process has the advantages of thin seams, low cost, and low chance of water seepage. [0004] In order to solve the problems of the technologies described above, the molding process of the present invention comprises the following steps: [0005] (1) A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/00B29C43/24B29C65/02B29L31/00
Inventor 张芳海郭建伟丁蕊王照红卢恕志
Owner 青岛华海环保工业有限公司
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