Unlock instant, AI-driven research and patent intelligence for your innovation.

Sewing machine and control method of sewing machine

A technology of sewing machine and control department, applied in the direction of sewing machine components, program-controlled sewing machines, sewing equipment, etc.

Active Publication Date: 2019-07-12
BROTHER KOGYO KK
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the feed dog transports thin cloth, there is a possibility that the thin cloth enters the feed dog hole from the gap between the rear end of the feed dog and the rear end of the feed dog hole.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Sewing machine and control method of sewing machine
  • Sewing machine and control method of sewing machine
  • Sewing machine and control method of sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following description will use descriptions such as up and down, left and right, and front and rear indicated by arrows in the drawings. refer to figure 1 , figure 2 The structure of the sewing machine 1 will be described. The sewing machine 1 has a base portion 3 , a pillar portion 4 and an arm portion 5 . The base portion 3 is planar and extends in the left-right direction. The pillar portion 4 extends upward from the right end of the base portion 3 . The arm part 5 extends leftward from the upper end of the pillar part 4 and faces the upper surface of the stand part 3 . The machine base 3 has a needle plate 15 on the upper left side. The needle plate 15 has a needle accommodating hole 16 on the left end side. The needle plate 15 has cloth feed tooth holes 26 on the left, rear, right and front of the needle hole 16 . The base part 3 has a main motor 13 insi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a sewing machine and a control method for the sewing machine. The method comprises the steps that a cloth material is not liable to enter an opening part, which is used for the bulging and immersing of cloth supply teeth, of a needle plate during the charging of the swinging range of the cloth supply teeth; a CPU of the sewing machine enables the drive motor of a cloth supply motor to be switched to a first drive mode or a second drive mode, so as to change the swinging range of the cloth supply teeth; in the first drive mode, the drive shaft of a cloth supply motor carries out the reciprocating rotation under the condition that a specific rotation position is taken as a central position; the cloth supply teeth are located at the front end of a movement range when the drive shaft is located at the specific rotation position; in the second drive mode, the drive shaft makes reciprocating movement in an anticlockwise direction, wherein the swinging range of the cloth supply teeth is located behind the front end of the movement range of the cloth supply teeth in the second drive mode, and a gap between the reciprocating cloth supply teeth and the rear ends of the cloth supply tooth holes is not liable to become large in the front / back direction, thereby enabling cloth not to be liable to fall into the cloth supply tooth holes.

Description

technical field [0001] The invention relates to a sewing machine and a control method for the sewing machine. Background technique [0002] The sewing machine has feed dogs for feeding the cloth placed on the needle plate. For example, the sewing machine disclosed in Japanese Patent Application Laid-Open No. 64825 in 2014 has a cloth feeding tooth, a cloth feeding table, an upper and lower conveying shaft, a spindle motor, a cloth feeding motor and a power transmission mechanism. The cloth feeding teeth are arranged on the cloth feeding table. The right end of the up and down conveying shaft is connected to the spindle motor. The spindle motor rotates the upper and lower conveying shafts, thereby moving the cloth feeding table up and down. The cloth feeding motor can move the cloth feeding table back and forth by means of the power transmission mechanism. The cloth feed motor has a cloth feed output shaft. The power transmission mechanism has a horizontal conveying shaf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D05B19/16D05B27/00
CPCD05B19/16D05B27/00
Inventor 竹村徹
Owner BROTHER KOGYO KK