CN111748871A - Detection apparatus for foreign fiber thing among textile fiber - Google Patents

Abstract

The invention discloses a device for detecting foreign fibers in textile fibers, which comprises a detection support, a high-precision camera and a lighting lamp, wherein the high-precision camera, the lighting lamp and a shooting shading lampshade are arranged on the detection support, and the detection support is arranged on a cotton conveying device. In order to improve the detection effect, a reflector can be arranged on the shooting lampshade. The high-precision camera and the illuminating lamp are electrically connected with the foreign fiber detection electric control system. The special fiber detecting and removing device, the special fiber removing device and the special fiber detecting and removing electric control system are matched to act, so that the special fibers can be detected and removed from the early stage of cotton spinning production, the detection rate of the visible special fibers on a cotton layer is up to more than 99 percent through practical trial production verification of an applicant, the production efficiency of the subsequent process is greatly improved, the requirement on manual labor is reduced, the content of the special fibers is reduced, and the aim of improving the product quality is finally achieved.

Description

Detection apparatus for foreign fiber thing among textile fiber

[ technical field ] A method for producing a semiconductor device

The invention relates to textile machinery equipment for cotton processing, in particular to a device capable of detecting and removing foreign fibers in textile fibers.

[ background of the invention ]

Foreign fiber is foreign fiber, which is derived from non-cotton fiber and non-natural color cotton fiber mixed into raw cotton during picking, purchasing and processing of raw cotton, such as chemical fiber, grass, leaf, hair, silk, hemp, plastic film, dyeing line, etc.

Foreign fibers are not only difficult to remove during the spinning process, but also are stretch broken or carded into shorter, finer and more fibrous fine defects during the trash removal process. The foreign fiber seriously affects the quality of cotton yarn and cloth, leads to uneven dyeing, affects the appearance and further affects the sale of cotton textiles and clothes. Currently, with the development of textile technology and the continuous improvement of consumption level, the requirement of consumers for different fibers in cotton textiles is higher and higher, and the different fibers are a focus of attention in the textile industry.

At present, the method for removing the foreign fibers mainly comprises five methods:

firstly, manually picking and removing foreign fibers;

secondly, installing a foreign fiber detecting and removing device in the opening and picking process;

thirdly, a foreign fiber detecting and removing device is installed in the cotton carding and combining process;

fourthly, the function of the electronic yarn clearer is expanded on the bobbin winder;

fifthly, performing cloth cover repair in the cloth cover inspection link of the fabric.

(1) The manual picking of the foreign fibers is generally arranged before raw cotton is put into production, the detection of the foreign fibers is mainly carried out by a manual eye detection method, and then the foreign fibers are manually picked. According to the investigation, 1-3 packages of raw cotton can be averagely detected by each person every day and a cotton textile enterprise with the average scale of 30000 spindles can detect the raw cotton with different fiber degrees or different yarn quality requirements, the labor is required to be more than 60 persons, the method has the advantages of more labor and high cost, the different fiber detection is completely influenced by human factors, and the different fiber removal result is unstable;

(2) the installation of a foreign fiber removing device in the opening and picking process is a common method for removing foreign fibers, a foreign fiber machine is usually installed behind the last machine table in the opening and picking process, a photoelectric sensor, an ultrasonic principle or an optical principle is adopted to detect foreign fibers, and removed objects are sprayed out.

(3) The different fiber detection device is arranged in the carding and combining process, is a sensor type different fiber detection device, is arranged on a guide frame of a carding machine and a drawing frame, detects out the colored and dirty cotton sliver by detecting the brightness change of the cotton sliver passing through a transparent guide tube, but the method and the second method have the same defects, and other tiny different fibers are wrapped in the cotton sliver, so that the different fiber removal rate is reduced.

(4) The electronic yarn clearer is arranged on the bobbin winder, so that each millimeter of yarn can be detected and monitored, micro foreign fibers can be detected and removed, and finally the requirement of the market on foreign fiber removal rate can be met, but the efficiency of the bobbin winder is greatly reduced, the cutting frequency is increased, and the production efficiency is even lower than 50%.

(5) The cloth cover picking and repairing is to detect and remove the foreign fiber on the finished cloth cover, and also belongs to manual operation, one method is to manually remove the foreign fiber one by one, the other method is to use a blower to heat melt the foreign fiber, so that the foreign fiber shrinks after being melted, the cloth cover picking and repairing has higher requirements on the vision and the skill of workers, the efficiency is lower, and the foreign fiber removing by adopting the two methods can damage the cloth cover.

In summary, it can be seen that the different fiber clearing techniques of the above different methods have some defects in various different fiber processing modes, and as the raw cotton production process is gradually advanced backwards, the difficulty in clearing the different fibers is also increasing, and in order to improve the clearing effect, the applicant has developed an intelligent device with a function of detecting and removing the different fibers, which can be used in cooperation with fiber opening and clearing processing equipment such as a plucker, a multi-bin cotton mixer, a cotton carding machine, and the like, and can not only detect the different fibers in the textile fibers, but also can more thoroughly grab and remove the different fibers. Thereby improving the purity of the textile fibers. Among them, the foreign fiber detection device is one of the keys.

[ summary of the invention ]

The invention aims to provide a device for detecting foreign fibers in textile fibers.

The technical scheme adopted by the invention is as follows:

a detection device for foreign fiber objects in textile fibers is characterized in that: including detecting support, high accuracy camera and light, high accuracy camera, light and shooting shading lamp cover are installed on detecting the support, detect the support mounting on defeated cotton device, and high accuracy camera and light all are connected with the foreign-fiber detection electrical system electricity.

Furthermore, a reflector is mounted on the photographing shade.

The foreign fiber detection device has the advantages that the foreign fiber detection device is used for shooting a cotton layer on the cotton conveying device to collect an original image of the cotton layer, the principle of the foreign fiber detection device is that a high-precision camera is used as a visual sensing source, artificial intelligence technology training and prediction are assisted, and a computer can really know what the foreign fiber is and carry out subsequent processing.

Different fine clearing device contains manipulator, sharp module and servo motor, and the manipulator is installed on the slider of sharp module, and servo motor installs at sharp module tip, through the inside screw drive of control sharp module, drives the manipulator by the slider in the sharp module and realizes linear motion.

The manipulator comprises a mechanical finger, a manipulator support, a manipulator opening and closing cylinder, a manipulator lifting cylinder, a mechanical finger mounting disc, a fixed pin shaft and a movable pin shaft, wherein the root of the mechanical finger is connected to the mechanical finger mounting disc through the movable pin shaft; the grabbing action of the target foreign fiber object is realized;

the manipulator lifting cylinder is fixed on the sliding block of the linear module, and the manipulator moves along with the sliding block on the linear module to realize longitudinal linear movement of the cotton conveying device; the manipulator bracket is fixed on a cylinder sliding block of a manipulator lifting cylinder, and the cylinder sliding block drives a mechanical finger to move up and down, so that the manipulator can accurately move to the longitudinal position of the foreign fiber object in the cotton conveying device, and the mechanical finger of the manipulator is aligned to the foreign fiber object;

the foreign fiber detection electric control system comprises an image analysis and control unit and a PLC control unit, the working principle of the foreign fiber detection electric control system is shown in figure 2, foreign fibers of cotton are imaged by a foreign fiber detection device, generated pictures are recorded into the image analysis and control unit, the image analysis and control unit is mainly integrated by a low-power consumption industrial personal computer in an integrated mode, AI calculation is carried out on images collected by the foreign fiber detection device in real time, the foreign fibers are analyzed and identified, coordinates of the foreign fibers are calculated, the foreign fiber coordinates are read by the PLC control unit, after the foreign fiber coordinates are read, a grabbing command is sent to a foreign fiber clearing device, and the foreign fiber clearing device grabs and collects the foreign fibers.

The intelligent multi-bin cotton mixing machine with the foreign fiber detection function has the working process as follows:

firstly, identification software in the foreign fiber detection electric control system can accurately recognize cotton and foreign fibers;

cotton bundles are evenly paved on a cotton conveying curtain after being output from the multi-bin cotton mixing machine to form an even cotton layer, the cotton layer in a shooting area is shot by a high-precision camera in the foreign fiber detection device, clear, stable and easily identified images can be guaranteed by an illuminating lamp and a shooting shading lampshade, and the shot images are transmitted to the foreign fiber detection electric control system by a data acquisition card through a data line.

And thirdly, judging the data by the different fiber detection processing electric control system according to the image shot by the high-precision camera to the cotton layer in the shooting area and preset different fiber identification software, judging the different fibers, calculating to obtain the position information of the different fibers, and sending an execution signal to the different fiber clearing device.

The action process of the foreign fiber removing device is as follows:

the initial position of a slide block of a linear module in the foreign fiber removing device is positioned at the middle position of a cotton conveying curtain, the foreign fiber removing device receives a foreign fiber coordinate given by a PLC control unit and immediately starts to act, firstly, the slide block on the linear module is controlled by a servo motor to move to a coordinate point position, the PLC control unit calculates the time t required by the foreign fiber to move to the position below a mechanical arm along with the cotton conveying curtain, after the time t, a mechanical arm lifting cylinder acts, the mechanical arm falls to the position contacting a cotton layer, at the moment, the cylinder opens and closes, the mechanical finger closes, a small part of cotton bundles around the foreign fiber are accurately grabbed, the mechanical arm lifting cylinder acts again, the mechanical finger rises and leaves the cotton layer, the slide block on the linear module is controlled by the servo motor to move to the position above a foreign fiber collecting bag on the side face of a frame, at the moment, the mechanical arm opens and closes the cylinder, the mechanical finger opens, after the collection of the foreign fibers is completed, the linear module drives the manipulator support to return to the initial position immediately.

The invention can be used with various cotton spinning devices, and is preferably arranged at the cotton flow inlet end. If the special fiber removing device is matched with a multi-bin cotton mixer for use, the special fiber removing device and the special fiber removing device are both arranged on the cotton conveying device, and the special fiber detecting and removing electric control system controls the special fiber removing device and the special fiber removing device.

The invention finishes the collection of the position information of the foreign fiber in the cotton layer on the cotton conveying curtain, then transmits the information to the foreign fiber detection electric control system, and the foreign fiber detection electric control system calculates the coordinate position of the obtained foreign fiber and the area occupied by the foreign fiber, and then sends a corresponding execution signal to the foreign fiber removal device, and controls the foreign fiber removal device to precisely grab, remove and place the foreign fiber into a specified foreign fiber collection bag.

[ description of the drawings ]

FIG. 1 is a schematic structural view of the present invention in use with a multi-bin cotton blender;

FIG. 2 is a schematic diagram of an electrical control system for detecting foreign fibers;

FIG. 3 is a structural view of a cotton conveying device;

FIG. 4 is a schematic structural view of the present invention;

FIG. 5 is a perspective view of the present invention;

FIG. 6 is a perspective view of the foreign fiber removing device;

FIG. 7 is a schematic perspective view of a robot;

FIG. 8 is a schematic view of the operation principle of the open/close cylinder of the manipulator driving the mechanical fingers to grip and release;

fig. 9 is a schematic structural view of the mechanical finger in a grasping state.

In the figure: 1-a multi-bin cotton mixing machine body main body; 2-a cotton conveying device; 3-a foreign fiber detection device; 4-foreign fiber removing device; 5-a foreign fiber detection electric control system; 6-foreign fiber collecting bag; 21-a frame; 22-cotton conveying curtain; 23-a gear motor; 31-a detection scaffold; 32-high precision camera; 33-lighting lamps; 34-shooting shade lamp; 41-a manipulator; 42-a linear module; 43-a servo motor; 411-mechanical fingers; 412-a robot arm support; 413-manipulator open and close cylinder; 414-manipulator lifting cylinder; 415-mechanical finger mounting plate; 416-fixing the pin shaft; 417-moving the pin; 418-cylinder slide block; 51-image analysis and control unit; 52-PLC control unit.

[ detailed description ] embodiments

The present invention will be described in detail with reference to the accompanying drawings.

Example 1: as shown in fig. 1, the structure of the invention is schematically illustrated in the form of a multi-bin cotton mixer, and comprises a multi-bin cotton mixer main body 1, a cotton conveying device 2, a foreign fiber detection device 3, a foreign fiber removal device 4, a foreign fiber detection electrical control system 5 and a foreign fiber collection bag 6, wherein the foreign fiber detection device 3 and the foreign fiber removal device 4 are mounted on the cotton conveying device 2, and the foreign fiber detection electrical control system 5 controls the foreign fiber detection device 3 and the foreign fiber removal device 4; the cotton conveying device 2 comprises a frame 21, a cotton conveying curtain 22 and a speed reducing motor 23, wherein the frame 21 is installed at the outlet position of the multi-bin cotton mixing machine body main body 1, the speed reducing motor 23 drives the cotton conveying curtain 22 to perform uniform speed circulating transmission, cotton flow is laid on the cotton conveying curtain 22 from a cotton passing channel of the multi-bin cotton mixing machine to form a cotton layer with uniform thickness, and uniform output of the cotton layer is achieved.

The foreign fiber detection device 3 comprises a detection bracket 31, a high-precision camera 32, an illuminating lamp 33 and a shooting shading lampshade 34 as shown in fig. 4 and 5, wherein the high-precision camera 32, the illuminating lamp 33 and the shooting shading lampshade 34 are arranged on the detection bracket 31, and the detection bracket 31 is arranged on the cotton conveying device 2.

The foreign fiber detection device 3 is used for shooting the cotton layer on the cotton conveying device 2 to collect an original image of the cotton layer, and the principle of the foreign fiber detection device 3 is that a high-precision camera 32 is used as a visual sensing source and is assisted with artificial intelligence technology training and prediction, so that a computer can really know what is foreign fiber and perform subsequent processing.

The structure of the foreign fiber removing device 4 is shown in fig. 6-9, and comprises a manipulator 41, a linear module 42 and a servo motor 43, wherein the manipulator 41 is installed on a sliding block of the linear module 42, the servo motor 43 is installed at the end part of the linear module 42, and the sliding block in the linear module 42 drives the manipulator 41 to realize linear movement by controlling the transmission of a screw rod in the linear module 42; as shown in fig. 7, the manipulator 41 includes a mechanical finger 411, a manipulator support 412, a manipulator opening and closing cylinder 413, a manipulator lifting cylinder 414, a mechanical finger mounting plate 415, a fixed pin 416, and a moving pin 417, where the root of the mechanical finger 411 is connected to the mechanical finger mounting plate 415 through the moving pin 417, the mechanical finger 411 drives the moving pin 417 to slide in a chute of the mechanical finger mounting plate 415, a joint of the mechanical finger 411 is connected to the manipulator support 412 through the fixed pin 416, the mechanical finger 411 can rotate around the fixed pin 416, the manipulator opening and closing cylinder 413 is fixed to the manipulator support 412, a cylinder rod is fixed to the mechanical finger mounting plate 415, and the opening and closing of the mechanical finger 411 can be realized through the telescopic action of the cylinder rod; the grabbing action of the target foreign fiber object is realized;

the manipulator lifting cylinder 414 is fixed on the slide block of the linear module 42, and the manipulator 41 moves along with the slide block on the linear module 42 to realize longitudinal linear movement along the cotton conveying device 2; the manipulator bracket 412 is fixed on the cylinder slide block 418 of the manipulator lifting cylinder 414, and the cylinder slide block 418 drives the mechanical finger 411 to move up and down, so that the manipulator 41 can accurately move to the longitudinal position of the foreign fiber object in the cotton conveying device 2, and the mechanical finger 411 of the manipulator 41 is aligned to the foreign fiber object;

the foreign fiber detection electric control system 5 comprises an image analysis and control unit 51 and a PLC control unit 52, the working principle of the foreign fiber detection electric control system 5 is shown in FIG. 2, the foreign fiber detection device 3 images the foreign fibers of cotton, the generated pictures are recorded into the image analysis and control unit 51, the image analysis and control unit 51 is mainly integrated by a low-power industrial personal computer, AI calculation is carried out on the images acquired by the foreign fiber detection device 3 in real time, the foreign fibers are analyzed and identified, the coordinates of the foreign fibers are calculated, the foreign fiber coordinates are read by the PLC control unit 52, after reading, a grabbing command is sent to the foreign fiber removal device 4, and the foreign fiber removal device 4 grabs and collects the foreign fibers; the foreign fiber collecting bag 6 is arranged on the side surface of the cotton conveying device 2.

The intelligent multi-bin cotton mixing machine with the foreign fiber detection function has the working process as follows:

the cotton bundles are evenly paved on the cotton conveying curtain 22 after being output from the multi-bin cotton mixer to form an even cotton layer, the cotton layer in the shooting area is shot by a high-precision camera 32 in the foreign fiber detection device 3, clear, stable and easy-to-identify images can be guaranteed by the illuminating lamp 33 and the shooting shading lampshade 34, the shot images are transmitted to the foreign fiber detection electric control system 5 through a data line by a data acquisition card, the foreign fiber detection processing electric control system 5 carries out operation judgment on the data according to the images shot by the high-precision camera 32 on the cotton layer in the shooting area and preset foreign fiber identification software to obtain coordinate position information of foreign fibers, and then an execution signal is sent to the foreign fiber removal device 4. The identification software in the foreign fiber detection electric control system 5 can accurately recognize cotton and foreign fibers; the initial position of the slide block of the linear module 42 in the foreign fiber removing device 4 is located at the middle position of the cotton conveying curtain 22, the foreign fiber removing device 4 receives the foreign fiber coordinate given by the PLC control unit 52 and immediately starts to act, firstly, the slide block on the linear module 42 is controlled by the servo motor to move to the coordinate point position, the PLC control unit 52 calculates the time t required for the foreign fiber to move to the position below the mechanical arm 41 along with the cotton conveying curtain 22, after the time t passes, the mechanical arm lifting cylinder 414 acts, the mechanical finger 411 descends to the position contacting the cotton layer, at the moment, the mechanical arm opening and closing cylinder 413 acts, the mechanical finger 411 closes, the foreign fiber and a small part of cotton bundles around the foreign fiber are accurately grabbed, the mechanical arm lifting cylinder 414 acts again, the mechanical finger 411 rises to leave the cotton layer, the slide block on the linear module 42 is controlled by the servo motor to move to the position above the foreign fiber collecting bag 6 on the side of, the mechanical finger 411 is unfolded, foreign fiber objects fall into the foreign fiber collecting bag 6, and after the foreign fiber objects are collected, the linear module 42 drives the mechanical arm support to immediately return to the initial position.

The main function of the existing multi-bin cotton mixer is to fully mix the delivered raw materials and supply the raw materials to the next machine as uniformly and quantitatively as possible, so that the cotton mixer has a certain garnetting effect on cotton bundles and can remove part of impurities with large specific gravity.

The invention is additionally arranged on the basis of the existing multi-bin cotton mixer, wherein a foreign fiber detection device 3 and a foreign fiber clearing device 4 are arranged on a cotton conveying device 2, and a foreign fiber detection electric control system 5 controls the foreign fiber detection device 3 and the foreign fiber clearing device 4. The foreign fiber detection device 3 collects position information of foreign fibers in a cotton layer on the cotton conveying curtain, the position information is transmitted to the foreign fiber detection electric control system 5, the foreign fiber detection electric control system 5 calculates the obtained coordinate position of the foreign fibers and the occupied area of the foreign fibers, corresponding execution signals are sent to the foreign fiber removal device 4, the foreign fiber removal device 4 is controlled to accurately grab, remove and place the foreign fibers into the specified foreign fiber collection bag 6, the intelligent multi-bin cotton mixing machine with the foreign fiber detection function can detect and remove the foreign fibers from the early stage of cotton spinning production, the detection rate of the foreign fibers on the cotton layer is up to more than 99% through actual test production verification of an applicant, the production efficiency of subsequent processes is greatly improved, the requirement on manual labor is reduced, the content of the foreign fibers is reduced, and the purpose of improving the product quality is finally achieved.

Example 2: in embodiment 1, a reflector is attached to the photographing shade 34, and the reflector reflects light emitted from the illumination lamp 33 uniformly.

The invention can be implemented in many ways, and any functional replacement scheme such as clearing the cotton flow layer by combining the foreign fiber detection device 3, the foreign fiber clearing device 4 and the foreign fiber detection electric control system 5 is within the protection scope of the invention.

Claims (2)

1. A detection device for foreign fiber objects in textile fibers is characterized in that: the foreign fiber detection device (3) comprises a detection support (31), a high-precision camera (32) and an illuminating lamp (33), the high-precision camera (32), the illuminating lamp (33) and a shooting shading lampshade (34) are installed on the detection support (31), the detection support (31) is installed on the cotton conveying device (2), and the high-precision camera (32) and the illuminating lamp (33) are electrically connected with the foreign fiber detection electric control system (5).

2. The apparatus for detecting foreign objects in textile fibers according to claim 1, wherein: a reflector is mounted on the photographing shade (34).

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