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Ceramic needle bar for industrial sewing machine and preparation process of ceramic needle bar
The invention discloses a ceramic needle bar for an industrial sewing machine and a preparation process of the ceramic needle bar. The needle bar of the sewing machine comprises a needle bar body and a needle bar head, wherein the needle bar body is axially fixed to a sewing machine mounting head, a sewing machine needle insertion hole is formed in the lower end of the needle bar head, and a sewing machine needle is fixed by a bolt through a side face fixing hole. The ceramic needle bar can be integrally formed by a ceramic material, or can be formed by detachably connecting the needle bar head made of a metal material and the needle bar body made of the ceramic material. The preparation method of the detachable ceramic needle bar comprises the following steps: forming a primary blank of the needle bar body, pre-hardening and firing the primary blank, performing near-size processing on the primary blank, sintering a crystal, performing connection processing on the crystal of the needle bar body and the metal needle bar head, and performing net-size processing on a finished product. According to the ceramic needle bar and the preparation process thereof, the ceramic needle bar has the characteristic of high wear resistance, the overall performance of the needle bar is improved, engine oil leakage is completely eradicated, the yield of cloth production is increased, and meanwhile, the cost can be effectively reduced.
本发明公开了一种工业缝纫机用陶瓷针杆及其制备工艺。本发明的缝纫机针杆包括针杆体和针杆头，针杆体轴向固定在缝纫机安装头上，针杆头的下端设有缝纫机针插入孔，缝纫机针通过侧面固定孔螺栓固定。陶瓷针杆可由陶瓷材料一体成型，也可金属材料制成的针杆头和陶瓷材料制成的针杆体可拆卸连接组成。可拆卸陶瓷针杆的制备步骤包括针杆体初坯体成型、初坯体预硬化烧制、初坯体近尺寸加工、结晶体烧结、针杆体结晶体与金属针杆头连接加工、成品净尺寸加工。本发明的陶瓷针杆及其制备工艺具有较高的耐磨的特性，提升针杆的整体性能，杜绝了机油渗漏，增加了布料生产的成品率，同时又能有效降低成本。
Ceramic needle bar for industrial sewing machine and preparation process of ceramic needle bar
The invention discloses a ceramic needle bar for an industrial sewing machine and a preparation process of the ceramic needle bar. The needle bar of the sewing machine comprises a needle bar body and a needle bar head, wherein the needle bar body is axially fixed to a sewing machine mounting head, a sewing machine needle insertion hole is formed in the lower end of the needle bar head, and a sewing machine needle is fixed by a bolt through a side face fixing hole. The ceramic needle bar can be integrally formed by a ceramic material, or can be formed by detachably connecting the needle bar head made of a metal material and the needle bar body made of the ceramic material. The preparation method of the detachable ceramic needle bar comprises the following steps: forming a primary blank of the needle bar body, pre-hardening and firing the primary blank, performing near-size processing on the primary blank, sintering a crystal, performing connection processing on the crystal of the needle bar body and the metal needle bar head, and performing net-size processing on a finished product. According to the ceramic needle bar and the preparation process thereof, the ceramic needle bar has the characteristic of high wear resistance, the overall performance of the needle bar is improved, engine oil leakage is completely eradicated, the yield of cloth production is increased, and meanwhile, the cost can be effectively reduced.
本发明公开了一种工业缝纫机用陶瓷针杆及其制备工艺。本发明的缝纫机针杆包括针杆体和针杆头，针杆体轴向固定在缝纫机安装头上，针杆头的下端设有缝纫机针插入孔，缝纫机针通过侧面固定孔螺栓固定。陶瓷针杆可由陶瓷材料一体成型，也可金属材料制成的针杆头和陶瓷材料制成的针杆体可拆卸连接组成。可拆卸陶瓷针杆的制备步骤包括针杆体初坯体成型、初坯体预硬化烧制、初坯体近尺寸加工、结晶体烧结、针杆体结晶体与金属针杆头连接加工、成品净尺寸加工。本发明的陶瓷针杆及其制备工艺具有较高的耐磨的特性，提升针杆的整体性能，杜绝了机油渗漏，增加了布料生产的成品率，同时又能有效降低成本。
Ceramic needle bar for industrial sewing machine and preparation process of ceramic needle bar
一种工业缝纫机用陶瓷针杆及其制备工艺
TIAN WANHONG (author)
2021-07-20
Patent
Electronic Resource
Chinese
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