CN202809176U

CN202809176U - Visual broken line detection system for warp knitting machine

Info

Publication number: CN202809176U
Application number: CN201220436993.3U
Authority: CN
Inventors: 李新; 邹骏宇; 吉峰
Original assignee: XINJE ELECTRONIC CO Ltd
Current assignee: Wuxi Guosheng Hi Tech Co ltd
Priority date: 2012-08-30
Filing date: 2012-08-30
Publication date: 2013-03-20
Anticipated expiration: 2022-08-30

Abstract

The utility model discloses a visual broken line detection system for a warp knitting machine. The visual broken line detection system for the warp knitting machine comprises a light source, an image acquisition module and a control module, wherein the image acquisition module is provided with a plurality of image acquisition devices; the light source and the image acquisition devices are oppositely arranged; the image of a cloth cover on the warp knitting machine, which is collected by the image acquisition module, is transferred to the control module; and the wrap knitting machine is controlled by the control module according to the collected image information. The image acquisition devices are erected above the cloth to collect the image of the cloth cover on the warp knitting machine; the collected image is processed by the image processing module of the control module; whether broken yarns exist is judged; if so, a parking signal is emitted, and the wrap knitting machine is controlled to stop; due to the fact that the machine has a strong visual adaptability, the limitation of the type and the thickness of the cloth is overcome; meanwhile, 100% of broken-yarn self stopping can be realized; the working efficiency is greatly improved; and the misjudgment rate and the false negative rate are lowered.

Description

Warp knitting machine vision broken wire detection system

Technical field

The utility model relates to the warp knitting machine detection field, particularly, relates to a kind of warp knitting machine vision broken wire detection system.

Background technology

Because the yarn of weaving usefulness is thinner, abnormal phenomenons such as broken yarn can appear in spinning warp knitting machine in fabrication processes, and at this moment warp knitting machine must stop immediately, in order to avoid flaw appears in cloth cover, this parking can be manually also can be automatic stopping.The automatic stopping warp knitting machine is generally with laser-correlation and cloth cover scanning dual mode at present.When referring to that yarn is disconnected, laser-correlation blowed to the laser-correlation zone by blower fan, cutting light, and control is shut down; The cloth cover scanner refers to that dedicated track supplies scanning lens to survey cloth cover, passes to automatic stop system by photoelectric sensor with signal.The laser-correlation device produces easily erroneous judgement and fails to judge, because it is light cutting to be realized self-stopping by yarn, mistakenly stop can appear in machine when having foreign matter between the correlation laser, greatly reduce operating efficiency, ceaselessly situation of broken yarn when deviation appears in the correlation laser position, also occurs easily; The cloth cover scanner is to detect for more smooth cloth cover, irregular part occurring can't examine, broken yarn self-stop accurately when cloth is screen cloth or thick cloth, and limitation is larger, and in scanning process, get to easily the workman, there is potential safety hazard.

The utility model content

The purpose of this utility model is, for the problems referred to above, proposes a kind of warp knitting machine vision broken wire detection system, to realize solving the type of detected cloth itself and the limitation of thickness, improves the stability that detects, and reduces the advantage to the short-term erroneous judgement.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of warp knitting machine vision broken wire detection system, comprise light source, image capture module and control module, the image acquisition device of described image capture module is a plurality of, the corresponding setting with collector of described light source, the image transmitting of cloth cover is to control module on the warp knitting machine that described image capture module gathers, and described control module is according to the image information control warp knitting machine of above-mentioned collection.

According to preferred embodiment of the present utility model, described light source adopts that light is reflective to be set up or the light transmission-type is set up, described light is reflective to be set up as light source and image acquisition device and is being laid in the homonymy of cloth cover, all above or below cloth, utilize light to reflect to form clearly digital picture, broken yarn is detected; Described smooth transmission-type is set up: namely light source and image acquisition device are laid in respectively the both sides of cloth, utilize optical transmission to form clearly digital picture, and broken yarn is detected.

According to preferred embodiment of the present utility model, described control module comprises graphics processing unit that the image of above-mentioned image capture module collection is processed, according to external control unit and the man-machine interaction unit of image processing module signal controlling warp knitting machine.

The technical solution of the utility model, by above cloth, setting up image acquisition device, cloth cover on the warp knitting machine is carried out IMAQ, and the image that gathers processed at the image processing module of control module, and judge whether broken yarn, as broken yarn occurs and namely provide stop sign and control the warp knitting machine automatic stopping, because machine vision strong adaptability, the type of cloth itself and the restriction of thickness have been overcome, simultaneously can realize 100% broken yarn self-stop, greatly strengthen operating efficiency, reduced the erroneous judgement misdetection rate.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Description of drawings

Fig. 1 is the structural representation that the light transmission-type is set up in the described warp knitting machine vision of the utility model embodiment broken wire detection system;

Fig. 2 is the reflective structural representation that sets up of light in the described warp knitting machine vision of the utility model embodiment broken wire detection system.

By reference to the accompanying drawings, Reference numeral is as follows among the utility model embodiment:

The 1-light source; The 2-image acquisition device; The 5-cloth cover; The 6-control module; The 7-light source shelf.

The specific embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.

Warp knitting machine vision broken wire detection system as shown in Figure 1, comprise light source, image capture module and control module, the image acquisition device of image capture module is a plurality of, the corresponding setting with collector of light source, the image transmitting of cloth cover is to control module on the warp knitting machine that image capture module gathers, and control module is according to the image information control warp knitting machine of above-mentioned collection.Light source also can adopt the light transmission-type to set up: light source and image acquisition device are laid in respectively the both sides of cloth, utilize optical transmission to form clearly digital picture, and broken yarn is detected.Control module comprises graphics processing unit that the image of image capture module collection is processed, according to external control unit and the man-machine interaction unit of image processing module signal controlling warp knitting machine.

As shown in Figure 2, light source adopts that light is reflective to be set up, and light is reflective to be set up as light source and image acquisition device are being laid in the homonymy of cloth cover, all above or below cloth, utilizes light to reflect to form clearly digital picture, and broken yarn is detected.

Warp knitting machine vision broken wire detection system utilizes a plurality of image acquisition devices to cover the cloth cover that all need to be detected, cloth cover is carried out IMAQ, signal is processed and provided to graphics processing unit to the image that collects, and the external control unit is controlled warp knitting machine according to the signal of graphics processing unit.By the man-machine interaction unit in the control module type of cloth is selected, shown in real time the image that collects, treatment state, log history stop frequency and the time that shows graphics processing unit.

It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. warp knitting machine vision broken wire detection system, it is characterized in that, comprise light source, image capture module and control module, the image acquisition device of described image capture module is a plurality of, the corresponding setting with collector of described light source, the image transmitting of cloth cover is to control module on the warp knitting machine that described image capture module gathers, and described control module is according to the image information control warp knitting machine of above-mentioned collection.

2. warp knitting machine vision broken wire detection system according to claim 1, it is characterized in that, described light source adopts that light is reflective to be set up or the light transmission-type is set up, described light is reflective to be set up as light source and image acquisition device and is being laid in the homonymy of cloth cover, all above or below cloth, utilize light to reflect to form clearly digital picture, broken yarn is detected; Described smooth transmission-type is set up: namely light source and image acquisition device are laid in respectively the both sides of cloth, utilize optical transmission to form clearly digital picture, and broken yarn is detected.

3. warp knitting machine vision broken wire detection system according to claim 1 and 2, it is characterized in that described control module comprises graphics processing unit that the image of above-mentioned image capture module collection is processed, according to external control unit and the man-machine interaction unit of image processing module signal controlling warp knitting machine.