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Breathing protective mask from secondary injecting formation and production thereof

A respiratory protector and secondary injection molding technology, which is applied in the direction of respiratory protective containers, respiratory masks, life-saving equipment, etc., can solve the problem of uneven welding state between hard bracket and soft cover, large welding energy time pressure limit, and difficult for workers to master and other issues to achieve the effect of improving product quality, reducing uncertain factors, and good sealing

Inactive Publication Date: 2005-12-28
广州市高坚劳保用品有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although ultrasonic flux technology realizes efficient and clean welding between different plastics, this technology has relatively large restrictions on the length of welding energy (vibration, welding time) and pressure, and requires relatively high precision. It is not easy for ordinary workers to master, resulting in hard brackets. The result of uneven welding state with the soft cover, decreased strength, poor bonding, and poor sealing

Method used

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  • Breathing protective mask from secondary injecting formation and production thereof

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Embodiment Construction

[0020] The present invention will be specifically described below in conjunction with specific embodiments.

[0021] Such as figure 1 As shown, the present embodiment is composed of a hard bracket 1 and a soft cover 2. The front part of the hard bracket 1 is connected with the soft cover 2, and the rear part is connected with the container structure of the respiratory protector. The size and shape of the soft cover 2 It matches the nose and mouth of a person, and can tightly cover the nose and mouth of the user; the connection between the soft cover 2 and the hard bracket 1 is secondary injection molding.

[0022] The manufacturing steps of this embodiment are as follows:

[0023] 1) One-time injection molding, injecting molten polypropylene (PE) into the mold, and injection molding the hard support 1;

[0024] 2) Secondary injection molding, after cooling and opening the mold, put the formed hard bracket 1 into the soft cover mold, and inject thermoplastic elastomer (TPE) i...

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Abstract

A face mask for respiration protector is composed of a hard supporting frame and a soft mask matched with the nose and mouth of its user. Said hard supporting frame is linked between said soft mask and respiration protector's container structure. The link part between hard support frame and soft mask is formed by secondary injection moulding.

Description

technical field [0001] The invention relates to a manufacturing method of a respiratory protector component, in particular to a secondary injection molding respiratory protector mask and a manufacturing method thereof. It belongs to the field of labor protection appliances. Background technique [0002] Respiratory protector is a relatively important variety of labor insurance products, which is essential for special workers, and the quality of the components in the respirator directly affects the use of people. Among them, the hard bracket that makes up the mask The combination degree and strength with the soft cover are more related to the user's safety, comfort and service life of the respiratory protector. [0003] In the prior art, the forming method of the respirator mask is generally completed through the following steps. First, the hard bracket of the respirator mask is injection-molded, and then the soft cover is bonded to the hard bracket by ultrasonic welding tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B18/02
Inventor 杨云生
Owner 广州市高坚劳保用品有限公司
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