CN110702690B

CN110702690B - Cloth cover defect mark removing system

Info

Publication number: CN110702690B
Application number: CN201910931465.1A
Authority: CN
Inventors: 徐寿明; 胡银松; 厉伟; 漏焕强
Original assignee: Zhejiang Baoren Hezhong Technology Co ltd
Current assignee: Zhejiang Baoren Hezhong Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2022-05-20
Anticipated expiration: 2039-09-29
Also published as: CN110702690A

Abstract

The invention discloses a cloth cover defect mark eliminating system which comprises a detection system, a detection control system, a database and an eliminating system, wherein the defect detection system is used for detecting, identifying and marking cloth cover defects, the detection control system is used for controlling the operation of the defect detection system and transmitting defect data to the database for recording, and the eliminating system is used for reading the defect data in the database and controlling the operation speed of the cloth cover so that the marked defect positions stay in a specified area. The invention can realize on-line automatic detection and mark the defects on the front and back surfaces of the cloth cover, does not need to stop machine for labeling in the detection process, does not need to manually control the machine for stopping in the removing process, and has high defect detection speed, high detectable rate and high removing rate. The device has the advantages of reducing the dependence on manpower in the defect eliminating process, and avoiding the problems of cloth drafting and worker repeated labor intensity caused by inaccurate defect position retention and missed detection, along with simple structure and convenient operation.

Description

Cloth cover defect mark removing system

Technical Field

The invention relates to the technical field of non-woven fabric production, in particular to a cloth cover defect mark removing system.

Background

In the traditional spunlace nonwoven fabric defect detection system, only the positions of defects are stored without marking, and the defects are searched by stopping the machine according to the positions of the defects in the defect elimination process, so that the method has the following defects: the spunlace nonwoven fabric is stretched in the running process, so that the positions of the defects move, the difficulty is increased for workers to find the defects, the working efficiency is reduced, and the defect leakage rate is high; the traditional method needs to be stopped at the default defect position of the equipment and restarted after the defect is removed, so that the longitudinal extension of the spunlace nonwoven fabric is increased again, and more influence is generated on the product quality; on the other hand, as the repeatability and the strength of the cloth inspecting operation are high, the long-time cloth inspecting process causes the visual fatigue of an operator, so that more missed inspections are generated, and the longer the working time of the operator is, the higher the probability of occurrence of the missed inspections is.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a cloth cover defect mark removing system which can automatically detect the defects of the cloth cover and selectively mark the cloth edge, and can control the running speed of the cloth in the defect removing work to ensure that the label paper just falls in the specified area when the running speed of the cloth is reduced to zero, thereby improving the working efficiency of workers and the detection rate of the defects.

In order to realize the purpose, the invention provides the following technical scheme: a cloth cover defect mark eliminating system comprises a detection system, a detection control system, a database and an eliminating system, wherein the defect detection system is used for detecting, identifying and marking cloth cover defects, the detection control system is used for controlling the defect detection system to operate and transmitting defect data to the database for recording, and the eliminating system reads the defect data in the database and controls the operation speed of the cloth cover to enable the positions of the marked defects to stay in a designated area.

Further, detecting system includes image acquisition system, metal detector, pastes the mark system, image acquisition system is equipped with the camera of shooing, paste the mark system including the labeller of carrying out the subsides mark action with can follow selvedge change condition automatic adjustment the automatic limit system of seeking of labeller position guarantees that the labeller can paste label paper accuracy on the selvedge.

Furthermore, the image acquisition system comprises six photographing cameras, every three photographing cameras form a detection station, and the two detection stations are respectively positioned at the upper side and the lower side of the cloth surface to be detected.

Further, every the inspection station is provided with lighting device, lighting device is light, light with the crossbeam of the camera of shooing adopts the installation of falling to the ground alone of integral type frame.

Further, the lighting device is correspondingly provided with a white background plate.

Furthermore, the label paper is in a strip shape, the specification is 20 x 60mm, the front side is red, the back side is white, the label paper is divided into two parts along the length direction, one part of the label paper is sticky on the back side, so that the label paper can be pasted on the edge of the spunlace non-woven fabric, and the other part of the label paper is not sticky and belongs to an exposed part.

Further, the rejection system comprises a mark detecting machine, a rewinding machine and a rejection control system, wherein the mark detecting machine is used for detecting the marked defect position, transmitting a signal to the rejection control system and controlling the running speed of the rewinding machine so that the defect position falls into an appointed area at zero speed.

Further, the rejection control system also comprises a display device for displaying the running speed of the cloth cover, the distance from the defects to the label detecting machine and the position information of the defects on the cloth.

Further, when the distance between adjacent defects is smaller than a preset value, and the previous defect is rejected, the rejection control system controls the rewinding machine to automatically run at a low speed.

Furthermore, the rejection control system also comprises a tension control system, an air pressure control system, a brake control system and an electric control system which are used for controlling the running of the grey cloth.

In conclusion, the invention can realize on-line automatic detection and marking of defects on the front and back sides of the cloth surface, and the speed of the cloth is just reduced to zero when the defect mark reaches the designated rejection position through two times of deceleration motion control. The machine does not need to be stopped for labeling in the detection process, the machine does not need to be manually controlled to be stopped in the removing process, the defect detecting speed is high, the detection rate is high, and the removing rate is high. The structure is simple, the operation is convenient, the dependence on manpower in the defect removing process is reduced, and the problems of cloth drafting, repeated labor intensity of workers and omission caused by inaccurate defect position stop are avoided.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the system of the present invention;

FIG. 2 is a flow chart of the system operation of the present invention;

FIG. 3 is a schematic diagram of the deceleration stage of the present invention.

Description of the labeling: 1. an oven; 2. cloth; 3. a metal detector; 4. a white background plate; 5. a detection table; 6. an illumination device; 7. rewinding machine; 8. provided is a labeling machine.

Detailed Description

An embodiment of a cloth cover defect mark rejecting system according to the present invention is further described with reference to fig. 1 to 3.

A cloth cover defect mark eliminating system comprises a detection system, a detection control system, a database and an eliminating system, wherein the defect detection system is used for detecting, identifying and marking cloth cover defects, the detection control system is used for controlling the defect detection system to operate and transmitting defect data to the database for recording, and the eliminating system reads the defect data in the database and controls the operation speed of the cloth cover to enable the positions of the marked defects to stay in a designated area. After the cloth 2 is dried in the oven 1, the detection control system controls the detection system to detect the cloth cover, and after the defects are detected, the defect types are verified, signals are transmitted to the database to be stored in a classified mode, and the defects are marked. And the removing system reads the total defect data of the database, controls the running speed of the cloth cover to enable the marked defect positions to stay in a specified area, and performs manual defect removing. The system can realize the functions of online intelligent detection, identification, classification marking and data recording of cloth cover defects, automatically control the running speed of the rejection system, and reduce the phenomena of manual operation and missed detection.

And the defect data is stored in a database, the rejection control system directly reads data from the database and converts the original data to record the marked defect positions, and the data conversion formula is Y = L-X, wherein Y is the position of the converted defect along the length direction of the cloth 2, L is the length of a roll of cloth, and X is the position of the defect in the database along the length direction of the cloth 2.

Referring to fig. 1, the detecting system includes an image collecting system, a metal detector 3 and a labeling system, the image collecting system is provided with a camera, the labeling system includes a labeling machine 8 for executing labeling action and an automatic edge searching system capable of automatically adjusting the position of the labeling machine 8 along with the change of the cloth edge, and the labeling machine 8 is ensured to accurately paste label paper on the cloth edge. The camera of shooing sends the data of the nonmetal defects shot and the metal defects detected by the metal detector 3 to the database, and the labeler 8 labels and marks the selvages with the defects.

Preferably, in this embodiment, the image acquisition system includes six photographing cameras, each three of the six photographing cameras constitute a detection station, and the two detection stations are respectively located at the upper side and the lower side of the cloth surface to be detected. Each detection station is provided with an illuminating device 6, the illuminating devices 6 are lamplight, the lamplight and a beam of the photographing camera are independently installed in a floor mode through an integrated frame, the illuminating devices 6 are correspondingly provided with white background plates 4, the lamplight irradiates the cloth surface, the white background plates 4 on the other side of the cloth surface enable the defects of the cloth surface to be clearer, and the photographing camera transmits the photographed cloth surface defect information to a database. The high-precision camera is adopted as the photographing camera, and can be used for image acquisition and data processing at the same time, so that the data delay of the system and the processing load of the control system are greatly reduced.

In the preferred embodiment, the label paper is in a strip shape, the specification is 20 × 60mm, the front side is red, the back side is white, the label paper is divided into two parts along the length direction, one part of the label paper is sticky on the back side, so that the label paper can be attached to the edge of the spunlace nonwoven, and the other part of the label paper is not sticky and belongs to the exposed part. The label paper which is stuck is convenient to remove, and the cloth cover is not damaged.

Preferably, in this embodiment, the removing system includes a mark detecting machine, a rewinding machine 7 and a removing control system, wherein the mark detecting machine is configured to detect a marked defect position, transmit a signal to the removing control system, and control the operation speed of the rewinding machine 7 so that the defect position falls into a designated area at zero speed.

As shown in fig. 3, the distance from the point a to the mark detecting machine is set to be L1, the distance from the mark detecting machine to the point B of the defect removing position is set to be L2, and the removing control system controls the cloth 2 to start to perform deceleration movement from the high-speed V0 in normal operation and start the mark detecting machine at the same time when the defect reaches the point a. When the speed of the cloth 2 is reduced to a set lower speed V1, the cloth starts to move at a constant speed until the label detecting machine detects the label paper corresponding to the defect. The label detecting machine detects that the label paper sends a signal to the rejecting control system, the rewinding machine 7 controls the cloth 2 to run at the speed of V1 for a preset distance, and then the cloth 2 is controlled to perform second deceleration movement until the speed is reduced to zero, and at the moment, the label paper just reaches the B-point defect rejecting position. After the defects are removed, the rewinding machine 7 is restarted to continuously run at the speed of V0. The arrangement avoids the problems of high-intensity labor and missed inspection caused by inaccurate drafting of the cloth 2 caused by the position of the defects and manual control of shutdown for removing the defects.

Preferably, in this embodiment, the rejection control system further includes a display device, configured to display the running speed of the cloth cover, the distance between the defect and the mark detecting machine, and the position information of the defect on the cloth 2.

Preferably, in this embodiment, when the distance between adjacent defects is smaller than a preset value, and after the previous defect is rejected, the rejection control system controls the rewinding machine 7 to automatically run at a low speed. When the display device displays that the distance between two adjacent defects is short (smaller than the distance L0 set in the removing system in advance), the removing control system transmits the information to the rewinding machine 7, after the previous defect is removed, the rewinding machine 7 controls the cloth 2 to still run at a low speed V1, and the label detecting machine detects the second label paper and then reduces the speed to zero, so that the label paper falls on the point B.

Preferably, the removing control system further includes a tension control system, an air pressure control system, a brake control system and an electrical control system for controlling the operation of the grey cloth.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A cloth cover defect mark rejecting system is characterized in that: the detection system comprises an image acquisition system, a metal detector and a labeling system, wherein the image acquisition system is provided with a camera, the labeling system comprises a labeling machine for executing labeling actions and an automatic edge searching system capable of automatically adjusting the position of the labeling machine along with the change condition of cloth edges, the labeling machine can accurately paste label paper on the cloth edges, the label paper is in a long strip shape, the specification of the label paper is 20X 60mm, the label paper is red on the front side and white on the back side, the label paper is divided into two parts along the length direction, one part of the label paper is sticky on the back side, the other part of the label paper is not sticky and belongs to an exposed part, the removing system comprises a label detecting machine, a rewinding machine and a removing control system, the label detecting machine is used for detecting the marked defect position and transmitting a signal to the removing control system for controlling the running speed of the rewinding machine, so that the defect position falls into a designated area at zero speed, and after the previous defect is removed when the distance between adjacent defects is smaller than a preset numerical value, the removing control system controls the rewinding machine to automatically run at a low speed.

2. The cloth defect mark rejection system of claim 1, wherein: the image acquisition system comprises six photographing cameras, every three photographing cameras form a detection station, and the two detection stations are respectively positioned on the upper side and the lower side of the cloth surface to be detected.

3. The cloth defect mark rejection system of claim 2, wherein: every the inspection station is provided with lighting device, lighting device is light, light with the crossbeam of the camera of shooing adopts the integral type frame to fall to the ground the installation alone.

4. A cloth defect mark rejection system as defined in claim 3, wherein: the illuminating device is correspondingly provided with a white background plate.

5. The cloth defect mark rejection system of claim 1, wherein: the rejection control system also comprises a display device which is used for displaying the running speed of the cloth cover, the distance from the fault to the label detecting machine and the position information of the fault on the cloth.

6. The cloth defect mark rejection system of claim 1, wherein: the rejection control system further comprises a tension control system, an air pressure control system, a brake control system and an electrical control system, wherein the tension control system, the air pressure control system, the brake control system and the electrical control system are used for controlling the running of the grey cloth.