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Round-head keyhole sartorius

A sewing machine and buttonhole technology, which is applied to sewing machine components, needle holders for sewing machines, sewing equipment, etc., can solve problems such as sintering and wear of sliding parts.

Active Publication Date: 2011-09-28
BROTHER KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When the needle bar up-and-down movement mechanism of the buttonhole sewing machine recorded in the above-mentioned Japanese Patent Publication Heisei 7th No. 313772 adopted the up-and-down movement transmission mechanism with a free joint like a universal joint, along with the sewing speed High speed, there are problems of wear and sintering of multiple sliding parts of the vertical motion transmission mechanism

Method used

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  • Round-head keyhole sartorius
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  • Round-head keyhole sartorius

Examples

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Embodiment Construction

[0026] In order to explain this invention in detail, it demonstrates referring drawings.

[0027] like figure 1 , figure 2 As shown, the round head buttonhole sewing machine 1 is a sewing machine for sewing round head buttonhole stitches, comprising: a substantially rectangular box-shaped machine base 2; a bottom plate portion 3 carried on the machine base 2; The rear part is provided with the pillar part 4 of an upright form, and the cabinet part 5 extended forward from the upper part of this pillar part 4, etc. are provided. The buttonhole sewing machine 1 is carried and fixed on the sewing machine table T.

[0028] On the upper side of the sewing machine table T, there is provided an operation panel P etc. for instructing various operations such as selecting one from a variety of eyelet buttonhole stitches, and on the lower side of the sewing machine table T, a A control device 6 composed of a microcomputer for controlling the action of each mechanism.

[0029] A hollo...

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PUM

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Abstract

An eyelet hole-darning sewing machine of the invention includes: a needle bar for fixing a sewing needle, a needle bar vertical moving mechanism for making the needle bar move vertically, a needle-cyclical mechanism for making the needle bar swing, a needle bar drive mechanism for making the needle bar rotate around its axis, and a curved needle seat rotating mechanism for making a curved seat bending the needle of support and the needle bar synchronously rotate. The invention is characterized in that the needle bar vertical moving mechanism has: a needle bar crank linked with a main shaft of the sewing machine, and a vertical motion transmission mechanism for transmitting the vertical force of the needle bar crank to the needle bar. The eyelet hole-darning sewing machine is provided with a lubrication oil feeding mechanism for feeding the lubrication oil to a plurality of sliding members of the vertical moving mechanism through an oil line.

Description

technical field [0001] The invention relates to a needle bar for installing sewing needles, a needle bar up and down movement mechanism for making the needle bar move up and down, a needle pendulum mechanism for making the needle bar swing, a needle bar rotating mechanism for making the needle bar rotate around its axis, and A eyelet buttonhole sewing machine with a looper holder rotation mechanism that can rotate a looper holder supporting a looper in synchronization with the rotation of the needle bar. Background technique [0002] Conventionally, in a ball buttonhole sewing machine for sewing buttonhole stitches, a sewing machine motor rotates a main shaft, and the rotation drives a needle bar vertical movement mechanism for moving the needle bar up and down, and drives a needle bar vertical movement mechanism for swinging the needle bar. needle pendulum mechanism, and drives the thread take-up mechanism for swinging the thread take-up lever. [0003] For example, Japane...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D05B3/08D05B55/14D05B71/00
Inventor 柴田到
Owner BROTHER KOGYO KK
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