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Machine head positioning method of stitching machine

A positioning method and a sewing head technology, which are applied in the field of knitting equipment and sewing machines, and can solve problems such as the failure of the head

Active Publication Date: 2011-09-28
ZHEJIANG HENGQIANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above situation is in the case that the stepping motor does not lose steps when it is running at low speed. The position required for the movement to achieve precise positioning

Method used

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  • Machine head positioning method of stitching machine
  • Machine head positioning method of stitching machine
  • Machine head positioning method of stitching machine

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Experimental program
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Embodiment Construction

[0017] For the convenience of illustrating the positioning method of the present invention, the head positioning method of the seaming machine will be described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 and figure 2 As shown in , a head positioning method of a sewing machine, the control system includes a magnet 1.1 fixed on the head 1, a head limit magnetic induction switch 2.1 fixed on the machine tool 2 and a controller 3, the head 1 In order to adopt the stepping motion mode of pulse control, it also includes a linear Hall sensor 4. The linear Hall sensor 4 is fixed on the machine tool 2 and is electrically connected with the controller 3. The controller 3 is provided with a storage module 3.1. The head positioning control method is as follows,

[0019] a. Set the ambient temperature to room temperature at 25°C, and set the machine head 2 to the zero position when it passes through the limit magnetic induction switch 2.1, m...

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PUM

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Abstract

The invention discloses a machine head positioning method of a stitching machine, which comprises the following steps of: recording and storing magnetic field intensities induced by a linear Hall sensor when the machine head moves to each position as magnetic field intensities induced by the linear Hall sensor are different when the linear Hall sensor and a machine head run at different positions, judging whether the machine head runs in place through the magnetic field intensities induced by the linear Hall sensor at the current position of the machine head even when a stepper motor is out of step; and accurately positioning the machine head by correcting the data stored in a storage even when problems cause that data detected by the linear Hall sensor shifts. The machine head positioning method has the advantage that the machine head also can be accurately positioned even when the stepper motor is out of step.

Description

technical field [0001] The invention relates to a knitting device, in particular to a sewing machine, in particular to a head positioning method of the sewing machine. Background technique [0002] Head sewing machine is a kind of knitting equipment. In order to achieve precise control of the movement of the machine head, a stepping motor is usually used to drive the machine head. Through the control of the stepper motor driver, the purpose of controlling the movement of the machine head through pulses is realized. Each pulse The machine head moves forward or backward one step. There is a magnet on the machine head and a magnetic induction limit switch on the machine tool. When the machine head passes the magnetic induction limit switch, it stops and sets the position to zero. With zero position and precise drive The stepping motor of the machine head, every step of the movement of the machine head is very precise. However, the above situation is in the case that the steppi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04B15/99G05D3/12G01B7/00
Inventor 胡军祥李宪
Owner ZHEJIANG HENGQIANG TECH