The invention relates to a thermoplastic elastomer trundle and an injection molding process thereof. The thermoplastic elastomer trundle is composed of a thermoplastic elastomer layer, a framework layer and a bearing, the framework layer used for supporting is arranged on the outer side of the bearing, the thermoplastic elastomer layer wraps the outer side of the framework layer, and a plurality of spaced protrusions are arranged on the surface of the inner side of the thermoplastic elastomer layer. And the thermoplastic elastomer layer and the skeleton layer are subjected to a double-color injection molding process: a thermoplastic elastomer layer material and a skeleton layer material are placed in two charging barrels of a double-color injection molding machine, the thermoplastic elastomer layer is firstly subjected to injection molding, and then the skeleton layer is subjected to injection molding. The preparation method is simple; a plurality of spaced bulges are arranged on the surface of the inner side of the thermoplastic elastomer layer, so that the thermoplastic elastomer layer and the framework layer can be fully fused into a whole, and the prepared trundle is high in bearing capacity and relatively good in buffering property and wear resistance.

    本发明涉及一种热塑性弹性体脚轮及其注塑成型工艺,由热塑性弹性体层、骨架层及轴承组成,轴承的外侧有用于支撑的骨架层,骨架层的外侧包裹有热塑性弹性体层,热塑性弹性体层内侧表面有若干间隔凸起。所述热塑性弹性体层和骨架层采用双色注塑成型工艺:将热塑性弹性体层材料和骨架层材料置于双色注塑机的两个料筒中,首先注塑热塑性弹性体层,然后注塑骨架层。本发明制备方法简单;热塑性弹性体层内侧表面有若干间隔凸起,能够将热塑性弹性体层和骨架层充分融合为一体,制备的脚轮承载力强且具有较好地缓冲性及耐磨性。


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    Title :

    Thermoplastic elastomer trundle and injection molding process thereof


    Additional title:

    一种热塑性弹性体脚轮及其注塑成型工艺


    Contributors:
    OUYANG QINGSHENG (author) / YI KUI (author)

    Publication date :

    2021-12-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS



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