Reverse weft finding control method for weaving machine

A control method and technology for looms, which are applied in looms, textiles, dobby machines, etc., can solve the problems of easy operation failure and complicated mechanism, and achieve the effect of reducing operation failures, improving efficiency and avoiding large impact force.

Active Publication Date: 2016-02-03
ZHEJIANG KANGLI AUTOMATIC CONTROL TECH
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defects of the existing weft finding method of looms that the mechanism is complex and the operation is prone to failure, and to provide a loom reverse weft finding control method with stable operation and simple control by combining software programs with mechanical mechanisms

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
  • Reverse weft finding control method for weaving machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] The method of the present invention adopts the electronic dobby shedding mechanism to run forward all the time to form the opening, at least set the weft finding signal point on the main shaft or the shaft synchronously moving with the main shaft or on the electronic dobby shedding mechanism to control the stop angle of the loom, and Feedback the weft-finding signal in each shedding process, assemble the weft-finding signal group for each shedding process, measure the number of shedding driven by the electronic dobby shedding mechanism with the number of weft-finding signal groups; control system software according to the weft-finding weft number instruction Control the number of openings formed corresponding to one weft reversed, establish the opening pointer corresponding to the corresponding number of wefts, determine the electromagne...

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 discloses a reverse weft finding control method for a weaving machine, belonging to the technical field of weaving machine control. According to the method, software program is combined with a mechanical structure; control system software controls the number of openings which are correspondingly formed by reversely finding a weft each time according to a weft finding weft instruction, an opening pointer is built to correspondingly point at the corresponding weft number, an electromagnet which participates the control of an electronic dobby shedding mechanism is determined, and an opening pointer program with a dobby shedding cycle pointer mathematic model is operated; driving of the electronic dobby shedding mechanism is achieved to form a previous weft opening of reversely found final target weft through operation of the dobby shedding cycle pointer mathematic model; the pointing direction of the opening pointer firstly retreats back to at least one previous weft from the next weft of the final target weft, and then the final target weft is implemented in an opening forming process; and an electromagnet participating the control is found out. The defects of large positive and negative operating impact force of a traditional pick finding mode mechanism are avoided; weft finding can be achieved at a normal running speed; and the efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of loom control, and in particular relates to a weft finding control method of a loom which utilizes a software program in combination with a mechanical mechanism to complete the weft finding. Background technique [0002] When the loom is weaving, the palm frame is driven up and down by the dobby shedding mechanism so that the warp yarns form shedding. During the weaving process, it is inevitable that weft breakage or fabric surface defects will occur. It is necessary to remove the weft yarn of the target weft where the weft breakage or fabric surface defects occur, and re-insert the weft at the target weft opening for weaving. When the weft break signal or the fabric defect is found manually, the current dobby opening state of the loom has surpassed the dobby opening state of the weft where the weft break or defect is located, so it is necessary to find the weft, that is, return to 1 weft or more than 1 we...

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 Applications(China)
IPC IPC(8): D03C1/16D03D51/34
Inventor 梁汇江徐郁山吕永进陈文佳丁春高吕彬王廷周
Owner ZHEJIANG KANGLI AUTOMATIC CONTROL TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap