CN104695143B - 缝纫机的天平结构 - Google Patents

缝纫机的天平结构 Download PDF

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CN104695143B
CN104695143B CN201510154433.7A CN201510154433A CN104695143B CN 104695143 B CN104695143 B CN 104695143B CN 201510154433 A CN201510154433 A CN 201510154433A CN 104695143 B CN104695143 B CN 104695143B
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sewing machine
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CN104695143A (zh
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王漫江
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Anhui Jieyu Shoemaking Machinery Technology Co ltd
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DONGGUAN MINGLING INDUSTRY AUTOMATION TECHNOLOGY Co Ltd
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B47/00—Needle-thread tensioning devices; Applications of tensometers

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Abstract

本发明涉及缝纫机技术领域，尤其是涉及缝纫机的天平结构，包括有缝纫机机壳及针杆，于缝纫机机壳上附加一天平固定座，天平固定座上组设有天平和夹线器，天平位于针杆上方，且天平上下摆动中心与针杆中心处于同一中心线上；所述天平由一曲柄驱动上下摆动，曲柄安装在天平固定座上，通过转轴连接有传动同步带轮。本发明在原有机壳的基础上加多一组曲柄、天平、夹线器结构，面线直接从加装天平过线，并且天平上下摆动中心与针杆中心处于同一中心线上，经实际测试，过线压力比传动缝纫机的天平位置结构更小，过线更顺畅，对于面线底线的调节更为简单方便；车缝线路美观，提升缝纫质量。

Description

缝纫机的天平结构
技术领域
本发明涉及缝纫机技术领域，尤其是涉及缝纫机的天平结构。
背景技术
传统的缝纫机构一般包括上机壳和下机壳，装设在上机壳上的上轴电机和针杆机构，穿设在上机壳内分别与上轴电机及针杆机构传动连接的上轴，以及装设在下机壳上的下轴电机和梭床机构，穿设在下机壳内并分别与下轴电机及梭床传动连接的下轴构成，通过上轴电机驱动上轴转动，上轴带动针杆机构做上下运动以实现缝纫针的上下缝纫动作，通过下轴电机驱动下轴转动，该下轴带动梭床机构运动以配合缝纫针进行缝纫操作。缝纫时，面线必须从针杆内部穿过，现有缝纫机的天平以及夹线器部分安装于机壳传统位置，天平最低点低于针杆上平面，根据缝纫机针杆与天平必须同步上下动作才能正常工作的原理，面线必须经过天平以及夹线器后转360度后从针杆内部出来。因此过线压力很大，面线底线的张力难以调节，车缝线路不美观，易造成抛面线底线、烂线、线路不直等一系列问题。
发明内容
本发明的目的在于克服现有技术中的上述缺陷，提供一种过线压力比传动缝纫机的天平位置结构更小，过线更顺畅，对于面线底线的调节更为简单方便的缝纫机的天平结构。
为达到上述目的，本发明采用如下技术方案：
缝纫机的天平结构，包括有缝纫机机壳及针杆，于缝纫机机壳上附加一天平固定座，天平固定座上组设有天平和夹线器，天平位于针杆上方，且天平上下摆动中心与针杆中心处于同一中心线上。
所述天平由一曲柄驱动上下摆动，曲柄安装在天平固定座上，通过转轴连接有传动同步带轮。
所述曲柄偏心铰接一偏心连杆，偏心连杆另一端则铰接与天平中段上，天平之与过线端相背的一端铰接在缝纫机机壳上。
本发明在原有机壳的基础上加多一组曲柄、天平、夹线器结构，面线直接从加装天平过线，并且天平上下摆动中心与针杆中心处于同一中心线上，经实际测试，过线压力比传动缝纫机的天平位置结构更小，过线更顺畅，对于面线底线的调节更为简单方便；车缝线路美观，提升缝纫质量。
附图说明：
附图1为本发明较佳实施例的结构示意图；
附图2为图1实施例的侧视图。
具体实施方式：
以下将结合附图对本发明的构思、具体结构及产生的技术效果作进一步说明，以充分地了解本发明的目的、特征和效果。
参阅图1、2所示，系为本发明的较佳实施例示意图，本发明有关一种缝纫机的天平结构，包括有缝纫机机壳1及针杆2，于缝纫机机壳1上附加一天平固定座3，天平固定座3上组设有天平4和夹线器5，天平4位于针杆2上方，且天平4上下摆动中心与针杆2中心处于同一中心线上。使用时，面线直接从加装的天平4过线，并且该天平4上下摆动中心与针杆2中心处于同一中心线上，经实际测试，过线压力比传动缝纫机的天平位置结构更小，过线更顺畅，对于面线底线的调节更为简单方便；车缝线路美观，提升缝纫质量。
图1、2所示，本实施例中，所述天平4由一曲柄6驱动上下摆动，曲柄6安装在天平固定座3上，通过转轴连接有传动同步带轮7。传动同步带轮7通过同步带连接原有缝纫机的天平传动机构，从而获得同步功效。图中，曲柄6偏心铰接一偏心连杆8，偏心连杆8另一端则铰接与天平4中段上，天平4之与过线端相背的一端铰接在缝纫机机壳1上。结构简单、科学合理，动作平稳，过线压力更小，过线更顺畅，精度高，极大提升缝纫机的运行率和可操作性，符合产业利用。
当然，以上结合实施方式对本发明做了详细说明，只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人了解本发明的内容并加以实施，凡根据本发明精神实质所做的等效变化或修饰，都应涵盖在本发明的保护范围内。

Claims (1)

1.缝纫机的天平结构，包括有缝纫机机壳（1）及针杆（2），其特征在于：于缝纫机机壳（1）上附加一天平固定座（3），天平固定座（3）上组设有天平（4）和夹线器（5），天平（4）位于针杆（2）上方，且天平（4）上下摆动中心与针杆（2）中心处于同一中心线上；所述天平（4）由一曲柄（6）驱动上下摆动，曲柄（6）安装在天平固定座（3）上，通过转轴连接有传动同步带轮（7）；所述曲柄（6）偏心铰接一偏心连杆（8），偏心连杆（8）另一端则铰接于天平（4）中段上，天平（4）之与过线端相背的一端铰接在缝纫机机壳（1）上。
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CN109554846A (zh) * 2019-01-30 2019-04-02 四川精上缝纫机有限公司 一种能够无限旋转的缝纫机针杆及收线机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1086559A (zh) * 1992-10-23 1994-05-11 兄弟工业株式会社 缝纫机
CN101353849A (zh) * 2007-07-26 2009-01-28 Juki株式会社 双针缝纫机
CN203174324U (zh) * 2013-04-08 2013-09-04 东莞市名菱工业自动化科技有限公司 针杆同步旋转机构
CN204728065U (zh) * 2015-04-02 2015-10-28 东莞市名菱工业自动化科技有限公司 缝纫机的天平结构

Family Cites Families (2)

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Publication number Priority date Publication date Assignee Title
JPS62258697A (ja) * 1985-12-03 1987-11-11 宮本技研有限会社 多針ミシンにおける天秤装置
JP2010172381A (ja) * 2009-01-27 2010-08-12 Barudan Co Ltd 多針ミシン

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1086559A (zh) * 1992-10-23 1994-05-11 兄弟工业株式会社 缝纫机
CN101353849A (zh) * 2007-07-26 2009-01-28 Juki株式会社 双针缝纫机
CN203174324U (zh) * 2013-04-08 2013-09-04 东莞市名菱工业自动化科技有限公司 针杆同步旋转机构
CN204728065U (zh) * 2015-04-02 2015-10-28 东莞市名菱工业自动化科技有限公司 缝纫机的天平结构

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