TPE injection molding process for toothbrush head production

By using the integrated process of bristle shaping and injection molding in the vehicle in the production of toothbrush heads, the problem of low efficiency in the existing technology is solved, and efficient fixation of bristles and improvement of production efficiency is achieved.

CN119141777AActive Publication Date: 2024-12-17DONGGUAN XINCHAOWEI INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411393545.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2024-12-17
Estimated Expiration
2044-10-08

AI Technical Summary

Technical Problem

The existing TPE copper-free injection molding process is less efficient in toothbrush head production, and requires separate bristle positioning and injection molding, resulting in cumbersome processes.

Method used

The integrated process of bristle setting and injection molding is adopted in the vehicle, and the top cover driving and step structure of the vehicle are used to fix the bristle and plastic injection, and the shaping parts are directly formed in the vehicle and TPE injection molding is carried out.

Benefits of technology

It improves the efficiency of toothbrush head production, reduces hot melting or welding processes, and improves the fixing effect of bristle posture.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of toothbrushes, in particular to a TPE (thermoplastic elastomer) injection molding process for toothbrush head production, comprising the following steps: A, inserting bristles into holes of a carrier for shaping; b, carrying out injection molding on the hole site of the carrier so as to form a shaping piece for keeping the current posture of the bristles; c, a top cover of the carrier is driven, so that the shaping piece in the hole site is exposed to the outside from the top of the carrier; d, the shaped part is taken away from the carrier; and E, carrying out TPE injection molding on the shaped part. According to the invention, injection molding is directly carried out in the carrier, and the fixing effect on the bristles is realized while the shaping piece is formed through injection molding, so that the production efficiency is improved.
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Citation Information

Patent Citations

  • Brush head assembly and methods of manufacture

    CN107624043A

  • Automatic cutting off device for sprue stub bar

    CN204183836U

  • Method for quality testing of brushes, in particular toothbrushes, testing device and brush making machine

    US20220358632A1