A cold-weather garment liner material inspection device and cutting method

Abstract

The application discloses a cold-weather clothes inner liner raw material cloth inspection device and cutting method, and relates to the technical field of textile inspection, which comprises a rack, a light board, a plurality of transmission rollers and a deviation rectifying assembly fixed on the rack, a photographing assembly arranged opposite to the light-emitting surface and used for photographing the material transmitted through the light board to obtain images of both sides of the material respectively, and a control unit electrically connected with the photographing assembly. The control unit obtains the coordinate positions of two cutting marks respectively spaced from both sides of the material by analyzing the images. The structure of the material on both sides of the cutting mark is symmetrical edge material and thin edge along the cutting mark. The edge material is arranged close to the edge of the material compared with the thin edge. The image photographed by the photographing assembly contains the material and the light-emitting surface. The cold-weather clothes inner liner raw material cloth inspection device and cutting method can obtain the images of both sides of the material by the photographing assembly, identify the position of the cutting mark, effectively solve the problem of the layer gradient of the edge caused by the net laying machine, improve the subsequent cutting precision, and reduce the waste of raw materials.

Description

Technical Field

[0001] This invention relates to the field of textile inspection technology, and in particular to a device for inspecting the raw material of a winter coat lining and a cutting method therefor. Background Technology

[0002] The inner lining of winter clothing often uses multiple layers of non-woven fabric as insulation filling. Non-woven fabric has the advantages of good insulation effect and lightness.

[0003] The existing method for manufacturing nonwoven fabric linings involves using a web-laying machine to repeatedly lay fiber webs to form a multi-layer structure, then using a flattening machine to flatten several layers of nonwoven fabric, and finally using a slitting machine to cut a whole piece of nonwoven fabric raw material into several parts for subsequent stacking and sewing together with the lining fabric to form a complete cold-weather clothing lining. In actual production, it has been found that due to the non-linear motion of the reciprocating switching action during the web-laying process, the number of fiber layers in the edge area of ​​the nonwoven fabric raw material laid by the web-laying machine will show a gradient distribution that gradually increases from the edge to the center. The existing technology usually addresses the problem of uneven edge thickness by directly cutting off the entire piece of nonwoven fabric with thickness defects, crushing it, and then re-laying the web.

[0004] However, on the one hand, re-laying the nonwoven fabric after crushing only changes the physical form of the material and puts it back into production. It does not fundamentally eliminate the edge gradient distribution problem caused by the web laying process itself. The newly laid nonwoven fabric will still produce the same edge thickness unevenness defect. On the other hand, directly cutting off the entire defective fabric results in a large number of originally usable edge areas and thin edge areas being discarded. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a device for inspecting the raw material of the inner lining of a cold-proof garment and a cutting method.

[0006] This application provides a fabric inspection device and cutting method for the inner lining material of a winter coat, including a frame set on the ground, a spotlight plate, several transmission rollers driven by a zero-level drive source, and a correction component set on the frame. The transmission rollers guide the material to conform to the luminous surface of the spotlight plate, and the correction component is used to adjust the path of the material transmission through the luminous surface. The device also includes: The camera is positioned facing the light-emitting surface and is used to capture images of the material being transported through the spotlight panel, so as to obtain images of both sides of the material. The control unit is electrically connected to the imaging device. The control unit analyzes the image to obtain the coordinate positions of two cuts that are spaced apart on both sides of the material. The structure of the material on both sides of the cuts is a symmetrical edge material and a thin edge along the cuts. The edge material is set closer to the edge of the material than the thin edge. The box has two parts, which are respectively located on both sides of the material. The opening of the box faces the light-emitting surface. The camera is located inside the box. The image formed by the camera through the opening includes the light-emitting surface that is not blocked by the material. The second drive component is connected to the frame and is used to adjust the distance between the two boxes. There are two third driving components, each connected to the imaging component. The third driving component is used to guide the imaging component to capture images containing materials and light-emitting surfaces.

[0007] In one embodiment, the box body includes an outer shell, an inner shell, and a light-shielding plate. The outer shell and the inner shell are slidably connected. The third driving component is used to control the inner shell to slide away from or towards the outer shell. The imaging component is fixedly mounted on the inner shell. A first driving source is fixedly mounted on the inner shell. The output end of the first driving source is fixedly connected to the light-shielding plate and is used to slide and position the distance between the light-shielding plate and the imaging component. The light-shielding plate is positioned close to the light-emitting surface. There is a marking slit between the light-shielding plate and the material through which light from the light-emitting surface passes to the imaging component.

[0008] In one embodiment, the light-shielding plate is integrally formed with a viewing block extending out of the box body.

[0009] In one embodiment, the third driving component includes a first lead screw, a guide rod, and a third driving source. The third driving source is fixedly connected to the outer shell. The output end of the third driving source is used to drive the first lead screw to rotate. The guide rod is fixedly connected to the outer shell. The first lead screw and the guide rod are disposed through the inner shell. The third driving source drives the imaging component to move synchronously with the correction component to adjust the direction of material movement. When the third drive source drives the first lead screw to rotate, the inner shell slides closer to or away from the outer shell.

[0010] In one embodiment, the second driving component includes a second lead screw, a second driving source, a linear slider, and a slide rail. The second driving source is fixedly connected to the frame, and the output end of the second driving source is used to drive the second lead screw to rotate. The second lead screw passes through the housing. There are several linear sliders and they are fixedly connected to the housing. The linear sliders are slidably disposed on the slide rail fixedly connected to the frame. When the second drive source drives the second lead screw to rotate, the two housings slide closer or further apart.

[0011] In one embodiment, the web guiding assembly may also carry a take-up roller, into which the material is guided for winding, and the web guiding assembly is controlled by a fourth drive source.

[0012] A method for cutting the inner lining material of a winter coat, comprising the following steps, using the aforementioned fabric inspection device for the inner lining material of a winter coat: Step 1: Control the second drive component to increase the distance between the two boxes, then pass the material through several drive rollers and spread the material flat on the light-emitting surface of the spotlight panel; Step 2: Control the second drive component so that the openings of the two boxes cover the two sides of the material, and then position the second drive component; Step 3: Use a marker to mark several lines on both sides of the material, with the marking lines crossing the edge and the thinner edge; Step 4: Operate the fabric inspection device. The transmission roller will continuously transport the material past the spotlight plate. The correction component and the third drive component will adjust the position of the material and the camera respectively. The camera will continuously capture images according to the time sequence, and the images will be transmitted to the control unit for analysis. a. The control unit processes the captured image in black and white, then extracts the grayscale of the image pixels. Based on the maximum number of material layers N, the grayscale of the image pixels is marked as a0, a1, ... and aN in an X and Y array, where X and Y are the number of pixels in the length and width of the image, respectively, a0 is the area of ​​the spotlight plate captured by the image, and aN is the grayscale value of the area with the most material layers captured by the image. b. The control unit calculates and acquires an image region of layer M, where M = N / 2. The control unit acquires the midline of the image region of layer M as the cutting line of the current image. Each cutting line on each image has several sets of coordinates (a, b). c. The control unit arranges all the line segments of the cuts obtained from each image on the same side in the order of the length direction of the material, and connects the line segments of adjacent cuts directly with straight lines at the junctions in the length direction to form a broken line cutting path composed of several straight lines connected end to end, thereby obtaining two continuous cutting path data on the left and right sides respectively. Step 5: Introduce the material into the slitting machine. The slitting machine includes two cutting blades for cutting the material along the cut lines. The cutting data is imported from the control unit into the slitting machine. The slitting machine moves the two cutting blades to align them with the cut lines. After the material passes through the cutting blades, it will be cut into two pieces. Step 6: Align the cut edge material with the other half of the marking line on the thin edge according to half of the marking line on the edge material, and stack it on the thin edge. At this time, the thin edge and the edge material are symmetrical along their mating surfaces. Step 7: Connect the edge material to the thin edge by stitching, pressing and / or needle punching.

[0013] In one embodiment, when the control unit analyzes the image in step four, the value of a in the obtained cut coordinates (a, b) corresponds to the position in the length direction of the material, and the value of b corresponds to the position in the width direction of the material.

[0014] In one embodiment, the way the slitting machine moves the two cutting blades in step five is as follows: the slitting machine is equipped with a microcontroller, which receives cutting data imported by the control unit, and the microcontroller is connected to a cylinder, which drives the cutting blades to move to the position aligned with the cutting line.

[0015] Compared with the prior art, the above-mentioned technical solution provided in this application has the following advantages: by acquiring images of both sides of the material through the photographic component and identifying the position of the cut, the problem of edge layer gradient caused by the screen laying machine is effectively solved, the subsequent cutting accuracy is improved, and the waste of raw materials is reduced. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the developing assembly and the imaging element of the present invention; Figure 5 This is a schematic diagram of the developing assembly of the present invention, mainly showing the marking seam between the material and the light-shielding plate; Figure 6 This is a perspective view of the material of the present invention; Figure 7 This is a flowchart of the cutting method of the present invention.

[0017] The following are the labels in the diagram: 1. Frame; 2. Spotlight plate; 3. Drive roller; 4. Correction assembly; 51. Outer shell; 52. Inner shell; 53. Light shield; 531. Visual block; 54. First lead screw; 55. Guide rod; 56. Second lead screw; 57. Linear slider; 58. Slide rail; 6. Photograph piece; 7. Marking seam; 8. Edge material; 9. Thin edge; 10. Cut mark. Detailed Implementation

[0018] To provide a clearer understanding of the technical features, objectives, and effects of this invention, the specific embodiments of this invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or element referred to must have a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] The existing web-laying process creates edge material 8 and thin edge 9 with a gradient distribution of layers on both sides of the nonwoven fabric. Directly cutting off the entire defective fabric results in material waste and cannot solve the problem.

[0021] A fabric inspection device for the inner lining material of cold-weather clothing, such as Figures 1 to 6 As shown, the device includes a frame 1 placed on the ground, a spotlight plate 2 fixed on top of the frame 1 with the light-emitting surface of the spotlight plate 2 facing upwards, and several transmission rollers 3 installed on the frame 1. These rollers are driven to rotate by a zero-drive source via a belt. The zero-drive source is an AC motor. The transmission rollers 3 guide the material to be tilted and transported in contact with the light-emitting surface of the spotlight plate 2. A correction component 4 is provided on the frame 1 to detect the lateral deviation of the material and push the material back to the set path. The correction component 4 includes a side baffle, a rotating roller, a pusher, and a sliding rod. The correction component 4 is a conventional structure, and for details, please refer to the known technology in this field, which will not be described in detail here. The camera 6 is positioned directly opposite the light-emitting surface of the spotlight panel 2. The camera 6 is an industrial digital camera with its lens facing downwards, used to acquire images of the areas on both sides of the material. Two boxes are respectively set on the left and right sides of the material, with the openings of the boxes facing the light-emitting surface. One camera 6 is installed in each box. When the camera 6 takes a picture through the opening of the box, the image includes the area of ​​the light-emitting surface that is not blocked by the material. The area of ​​the light-emitting surface serves as a grayscale reference and coordinate reference. The control unit is electrically connected to the camera 6, receives the image data and analyzes it. By analyzing the image, the control unit calculates the coordinate positions of two cuts 10 located on both sides of the material and maintaining a certain distance from the edge. The structure of the material on both sides of the cut 10 is the edge material 8 and the thin edge 9, respectively. The edge material 8 is close to the edge of the material, and the thin edge 9 is located inside the edge material 8. The two are distributed in a mirror-symmetrical layer along the cut 10.

[0022] The second driving component is fixedly connected to the frame 1. The second driving component is used to drive the two boxes to slide relative to each other along the width of the material and adjust the distance between the two boxes. There are two sets of third driving components, which are connected to the left and right shooting components 6 respectively. They are used to fine-tune the lateral position of the shooting components 6 so that the captured image always includes the material edge and the light-emitting surface. The second driving component and the third driving component each contain a driving source.

[0023] To obtain a clear image and avoid stray light interference, such as Figure 3 , Figure 4 as well as Figure 5As shown, each housing consists of an outer shell 51, an inner shell 52, and a light-shielding plate 53. The outer shell 51 and the inner shell 52 are slidably connected. The drive source of the third drive component controls the inner shell 52 to slide out or retract relative to the outer shell 51. The imaging component 6 is fixedly installed inside the inner shell 52. A first drive source is fixedly installed on the inner shell 52. In this embodiment, the first drive source is a pushing mechanism. The output shaft of the first drive source is fixedly connected to the light-shielding plate 53. Through the pushing of the first drive source, the light-shielding plate 53 can move closer to or away from the lens of the imaging component 6. This allows for adjustment of the distance between the light shield 53 and the photographed object 6. The light shield 53 is close to the light-emitting surface of the spotlight plate 2, and a narrow marking slit 7 is left between the light shield 53 and the material. The marking slit 7 allows light from the light-emitting surface to pass through and illuminate the photographed object 6, forming a bright baseline in the image. The light shield 53 is integrally formed with an outwardly protruding viewing block 531, which is located on the outside of the box. By observing the distance between the viewing block 531 and the edge of the material, the operator can manually adjust the width of the marking slit 7.

[0024] Furthermore, in order to enable the imaging component 6 to move in lateral direction following the material, the third driving component specifically includes a first lead screw 54, a guide rod 55, and a third driving source. In this embodiment, the third driving source is a servo motor. The housing of the third driving source is fixedly connected to the outer shell 51. The output shaft of the third driving source is coaxially fixed with the first lead screw 54. The guide rod 55 is fixedly connected to the outer shell 51 and parallel to the first lead screw 54. The first lead screw 54 and the guide rod 55 pass through the inner shell 52. When the third driving source drives the first lead screw 54 to rotate, the inner shell 52 slides along the guide rod 55 closer to or away from the outer shell 51. At the same time, the control unit receives the material position signal from the correction component 4 and drives the third driving source to move, so that the imaging component 6 moves synchronously with the lateral movement direction of the material, ensuring that the edge of the material is always within the field of view of the imaging component.

[0025] To adjust the spacing between the two boxes to accommodate materials of different widths, such as Figure 4 and Figure 5 As shown, the second driving component includes a second lead screw 56, a second driving source, a linear slider 57, and a slide rail 58. In this embodiment, the second driving source is a servo motor. The housing of the second driving source is fixedly connected to the frame 1. The output shaft of the second driving source is coaxially fixed with the second lead screw 56. The second lead screw 56 passes through the housing 51. There are two linear sliders 57, which are fixedly connected to the lower end of the housing 51 respectively. The linear sliders 57 are slidably mounted on the slide rail 58. The slide rail 58 is fixedly connected to the frame 1. Considering the convenience of operation, the material will move closer to one side of the box when it is being fed. Therefore, only the position of the other box needs to be adjusted to achieve adjustment. That is, when the second driving source drives the second lead screw 56 to rotate, one box slides towards or away from the other box to achieve spacing adjustment.

[0026] In addition, in order to directly roll up the fabric after inspection, the correction component 4 can also carry the take-up roller. After the material passes through the spotlight plate 2, it is guided to the take-up roller for winding. The correction component 4 is controlled by the fourth drive source. In this embodiment, the fourth drive source is an electric push rod, which pushes the take-up roller and its two side baffles to move laterally, thereby realizing continuous correction during the material winding process.

[0027] Usage: First, activate the second drive component to increase the distance between the two boxes. Then, pass the material around each drive roller 3 and lay it flat on the light-emitting surface of the spotlight plate 2. Then, activate the second drive component again so that the openings of the two boxes cover the material on the left and right sides respectively. Lock the second drive component. The operator uses a marker to draw several marking lines across the edge material 8 and the thin edge 9 on both sides of the material. The fabric inspection device is started, the transmission roller 3 drives the material forward at a uniform speed, the correction component 4 corrects the lateral position of the material in real time, the third drive component adjusts the position of the camera 6 synchronously, the camera 6 continuously captures images at fixed time intervals and sends them to the control unit for analysis, the control unit calculates the coordinates of the cut 10 based on the image grayscale and generates cutting path data, then the material is introduced into the slitting machine in the downstream of the production line, and the slitting machine drives the cutting blade to cut the edge material 8 from the thin edge 9 along the cut 10 according to the cutting data, and finally the cut edge material 8 and the thin edge 9 are aligned and stacked according to the marked line and fixed.

[0028] Beneficial effects: By capturing images of both sides of the material through the camera 6, the position of the cut 10 is identified, which effectively solves the problem of edge layer gradient caused by the screen laying machine, improves the subsequent cutting accuracy, and reduces raw material waste.

[0029] A method for cutting the inner lining material of a winter coat, wherein the fabric is inspected using the aforementioned fabric inspection device, such as... Figure 7 As shown, the cutting method includes the following steps: Step 1: Control the second drive component to increase the distance between the two boxes, then pass the material through several drive rollers 3 and spread the material flat on the light-emitting surface of the spotlight plate 2; In some embodiments, the second screw 56 is first driven by the second drive source to rotate, so that the two boxes move outward to the maximum distance. At this time, the boxes and the edge of the material do not interfere with each other as much as possible. The operator straightens the end of the material so that it completely covers the light-emitting surface of the spotlight plate 2.

[0030] Step 2: Control the second drive component so that the openings of the two boxes cover the two sides of the material, and then position the second drive component; In some embodiments, the second drive source is restarted to move the box towards the material until a gap of 3 to 5 mm is left between the edge of the light shield 53 and the edge of the material, and then the second drive source is stopped and the current position is maintained.

[0031] Step 3: Use a marker to mark several lines on both sides of the material, with the marking lines crossing the edge 8 and the thin edge 9; In some embodiments, a marking line is drawn every meter along the length of the material using an oil-based marker. Since the drawing is done before the cut 10 is determined, each marking line is drawn from the outer edge of the edge material 8 to more than 5 centimeters from the inner edge of the thin edge 9 to ensure accurate alignment when stacked later.

[0032] Step 4: Operate the fabric inspection device. The transmission roller 3 will continuously transport the material through the spotlight plate 2. The correction component 4 and the third drive component will adjust the position of the material and the imaging component 6 respectively. The imaging component 6 will continuously capture images according to the time sequence, and the images will be transmitted to the control unit for analysis. a. The control unit processes the captured image in black and white, then extracts the grayscale of the image pixels. Based on the maximum number of material layers N, the grayscale of the image pixels is marked as a0, a1, ... and aN in an X and Y array, where X and Y are the number of pixels in the length and width of the image, respectively, a0 is the area of ​​the image capturing spotlight plate 2, and aN is the grayscale value of the area with the most material layers captured in the image. In some embodiments, the control unit first converts the captured color image into a grayscale image. In the grayscale image, the light-emitting surface area of ​​the spotlight panel 2 has the highest light transmittance due to the absence of material obstruction, and presents the brightest grayscale value, marked as a0. In the material area, the light transmittance decreases as the number of fiber layers increases, and the grayscale value becomes darker accordingly. The control unit extracts the grayscale value pixel by pixel along the width direction of the material. According to the gradient of the grayscale value from bright to dark, the different grayscale intervals are marked as a1, a2, a3... up to aN, where aN corresponds to the area with the most material layers, the lowest light transmittance, and the darkest grayscale value.

[0033] b. The control unit calculates and obtains the image region of layer M, where M=N / 2. The control unit obtains the middle line of the image region of layer M as the cut 10 of the current image. Each cut 10 on each image has several sets of coordinates (a,b). In some embodiments, when the gray value at a certain location falls within the range of a(N / 2), the control unit determines that the location is the location of the cut 10. The control unit finds the pixel position corresponding to half of the maximum layer in each frame image, and then determines several intermediate lines. The determination of the intermediate lines is related to the image shape of the layer M. The image shape of the layer M is a number of arrow shapes that are connected end to end. Therefore, the position of the intermediate line and the corresponding set of coordinates (a, b) can be determined according to the median value of the image coordinates of each arrow shape. Since the lateral offset of each layer is different during the mesh laying process, the pixels of the intermediate line will form several straight line segments, and each straight line segment is assigned a set of coordinates (a, b).

[0034] c. The control unit arranges all the straight line segments of the cuts 10 obtained from each image on the same side in the order of the length direction of the material, and connects the straight line segments of adjacent cuts 10 directly with straight line segments at the junction in the length direction to form a broken line cutting path composed of several straight line segments connected end to end, and obtains two continuous cutting path data on the left and right sides respectively. In some embodiments, the control unit sorts the multiple sets of straight line segments obtained in each frame of image according to the order of image acquisition time. The straight line segments in the same frame are arranged in ascending order of length direction coordinate a. The endpoints of the straight line segments in adjacent frames of image are directly connected by straight lines without curve smoothing, so as to ensure that the cutting blade can respond quickly. Finally, the two polyline cutting path data are stored in the control unit memory in tabular form.

[0035] As a specific example of image analysis, when the camera 6 inspects multi-layer nonwoven fabric materials, the following processing flow can be set: Under the illumination of the spotlight panel 2 with an illuminance of 4000 lux, the image of the material located at the position of the 8-layer nonwoven fabric is captured. At this time, in the image acquired by the camera 6, the widest gray value corresponding to the 8-layer nonwoven fabric is 38, while the widest gray value corresponding to the preset mark seam 7 on the material is 255. The widest gray value is defined as the gray value of a pixel that frequently appears in a specific area of ​​the image. For the other seven layers of nonwoven fabric, their respective widest gray values ​​change regularly with the increase of the number of layers, and each layer corresponds to a unique widest gray value. Based on the above gray value distribution pattern, the image area of ​​a specific number of nonwoven fabric layers can be defined in the following way: First, calculate the gray value deviation range according to the formula (255-38) / N, where N is the maximum number of layers of the material. Here, N=8, and the calculation result is 27.125. Half of this calculation result and rounded down to 13 is used as the positive and negative deviation benchmark of the gray value. For nonwoven fabric with an intermediate number of layers M=4, the widest gray value in its image is 150. Then its gray value range is (150-13, 150+13), that is, 137 to 163. By using the gray value range, all pixel areas corresponding to 4 layers of nonwoven fabric can be selected from the image. Furthermore, based on the selected fourth layer of nonwoven fabric area, the average coordinates of its left and right boundaries in the horizontal direction are calculated to obtain the coordinates of the center line of the area. These center line coordinates correspond to several actual coordinate positions of the cut 10 on the material, thereby realizing the identification and positioning of the cut 10 position.

[0036] Step 5: Introduce the material into the slitting machine. The slitting machine includes two cutting blades for cutting the material along the cut line 10. The cutting data is imported from the control unit into the slitting machine. The slitting machine moves the two cutting blades to align the cutting blades with the cut line 10. After the material passes through the cutting blades, it will be cut off into two edge pieces 8. In some embodiments, the slitting machine is equipped with a microcontroller and two cylinders. The microcontroller receives the cutting path data transmitted by the control unit, that is, the width coordinate b corresponding to different length coordinates a. When the material runs to the corresponding length position, the microcontroller controls the solenoid valve to open and close, the cylinder rod to extend and retract, and pushes the cutting blade to move laterally to the b value position, so that the blade is aligned with the cut 10. The cutting blade is a straight blade. When the material passes through continuously, it is cut into two independent edge pieces 8.

[0037] Step 6: Align the cut edge material 8 with the other half of the marking line on the thin edge 9 according to half of the marking line on it, and stack it on the thin edge 9. At this time, the thin edge 9 and the edge material 8 are symmetrical along their mating surfaces. In some embodiments, the conveyor belt for transporting materials guides the cut edge material 8 to the edge of the thin edge 9, keeping each marking line on the edge material 8 completely aligned with the corresponding marking line on the thin edge 9, and then allowing the two to gradually bond together naturally through the transport process.

[0038] Step 7: Connect the edge material 8 to the thin edge 9 by stitching, pressing and / or needle punching; In some embodiments, an ultrasonic sewing machine can be used to spot weld a point every 5 centimeters along the bonding surface, or the two layers after lamination can be fed into a hot rolling mill and hot-pressed together at 100 to 120 degrees Celsius, or a needle punching machine can be used for pre-needling to make the fibers entangle with each other. Among the above three methods, the ultrasonic sewing machine is the most compact and convenient for assembly line production.

[0039] Beneficial effects: By using image grayscale analysis to identify the position of the cut 10, a cutting path is generated, ensuring that the edge material 8 and the thin edge 9 are symmetrically separated along the cut 10. After subsequent alignment and fixing by marking lines, the originally discarded edge material 8 and the thin edge 9 complement each other to form a uniform thickness layer, which improves the utilization rate of raw materials and avoids the energy consumption of repeated crushing and re-laying.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A fabric inspection device for the inner lining material of a cold-weather clothing, comprising a frame mounted on the ground, a spotlight plate, a plurality of transmission rollers driven by a zero-level drive source, and a correction assembly mounted on the frame, wherein the transmission rollers guide the material to conform to the luminous surface of the spotlight plate, and the correction assembly is used to adjust the path of the material transmission through the luminous surface, characterized in that... Also includes: The camera is positioned facing the light-emitting surface and is used to capture images of the material being transported through the spotlight panel, so as to obtain images of both sides of the material. The control unit is electrically connected to the imaging device. The control unit analyzes the image to obtain the coordinate positions of two cuts that are spaced apart on both sides of the material. The structure of the material on both sides of the cuts is a symmetrical edge material and a thin edge along the cuts. The edge material is set closer to the edge of the material than the thin edge. The box has two parts, which are respectively located on both sides of the material. The opening of the box faces the light-emitting surface. The camera is located inside the box. The image formed by the camera through the opening includes the light-emitting surface that is not blocked by the material. The second drive component is connected to the frame and is used to adjust the distance between the two boxes. There are two third driving components, each connected to the imaging component. The third driving component is used to guide the imaging component to capture images containing materials and light-emitting surfaces.

2. The fabric inspection device for the inner lining material of a cold-weather garment according to claim 1, characterized in that: The box body includes an outer shell, an inner shell, and a light-shielding plate. The outer shell and the inner shell are slidably connected. The third driving component is used to control the inner shell to slide away from or towards the outer shell. The imaging component is fixedly mounted on the inner shell. A first driving source is fixedly mounted on the inner shell. The output end of the first driving source is fixedly connected to the light-shielding plate and is used to slide and position the distance between the light-shielding plate and the imaging component. The light-shielding plate is set close to the light-emitting surface. There is a marking slit between the light-shielding plate and the material through which light from the light-emitting surface is transmitted to the imaging component.

3. The fabric inspection device for the inner lining material of a cold-weather garment according to claim 2, characterized in that: The light-shielding plate is integrally formed with a visual block extending out of the box body.

4. The fabric inspection device for the inner lining material of a cold-weather garment according to claim 2, characterized in that: The third driving component includes a first lead screw, a guide rod, and a third driving source. The third driving source is fixedly connected to the outer shell. The output end of the third driving source is used to drive the first lead screw to rotate. The guide rod is fixedly connected to the outer shell. The first lead screw and the guide rod pass through the inner shell. The third driving source drives the shooting component to move synchronously with the correction component to adjust the direction of material movement. When the third drive source drives the first lead screw to rotate, the inner shell slides closer to or away from the outer shell.

5. The fabric inspection device for the inner lining material of a cold-weather garment according to claim 2, characterized in that: The second driving component includes a second lead screw, a second driving source, a linear slider, and a slide rail. The second driving source is fixedly connected to the frame. The output end of the second driving source is used to drive the second lead screw to rotate. The second lead screw passes through the outer casing. There are several linear sliders and they are fixedly connected to the outer casing. The linear sliders are slidably mounted on the slide rails fixedly connected to the frame. When the second drive source drives the second lead screw to rotate, the two housings slide closer or further apart.

6. The fabric inspection device for the inner lining material of a cold-weather garment according to claim 1, characterized in that: The correction assembly can also carry a take-up roller, into which the material is guided for winding, and the correction assembly is controlled by a fourth drive source.

7. A method for cutting a material for the inner lining of a winter coat, comprising inspecting the fabric using a fabric inspection device for the inner lining of a winter coat as described in any one of claims 1 to 6, characterized in that, Includes the following steps: Step 1: Control the second drive component to increase the distance between the two boxes, then pass the material through several drive rollers and spread the material flat on the light-emitting surface of the spotlight panel; Step 2: Control the second drive component so that the openings of the two boxes cover the two sides of the material, and then position the second drive component; Step 3: Use a marker to mark several lines on both sides of the material, with the marking lines crossing the edge and the thinner edge; Step 4: Operate the fabric inspection device. The transmission roller will continuously transport the material past the spotlight plate. The correction component and the third drive component will adjust the position of the material and the camera respectively. The camera will continuously capture images according to the time sequence, and the images will be transmitted to the control unit for analysis. a. The control unit processes the captured image in black and white, then extracts the grayscale of the image pixels. Based on the maximum number of material layers N, the grayscale of the image pixels is marked as a0, a1, ... and aN in an X and Y array, where X and Y are the number of pixels in the length and width of the image, respectively, a0 is the area of ​​the spotlight plate captured by the image, and aN is the grayscale value of the area with the most material layers captured by the image. b. The control unit calculates and acquires an image region of layer M, where M = N / 2. The control unit acquires the midline of the image region of layer M as the cutting line of the current image. Each cutting line on each image has several sets of coordinates (a, b). c. The control unit arranges all the line segments of the cuts obtained from each image on the same side in the order of the length direction of the material, and connects the line segments of adjacent cuts directly with straight lines at the junctions in the length direction to form a broken line cutting path composed of several straight lines connected end to end, thereby obtaining two continuous cutting path data on the left and right sides respectively. Step 5: Introduce the material into the slitting machine. The slitting machine includes two cutting blades for cutting the material along the cut lines. The cutting data is imported from the control unit into the slitting machine. The slitting machine moves the two cutting blades to align them with the cut lines. After the material passes through the cutting blades, it will be cut into two pieces. Step 6: Align the cut edge material with the other half of the marking line on the thin edge according to half of the marking line on the edge material, and stack it on the thin edge. At this time, the thin edge and the edge material are symmetrical along their mating surfaces. Step 7: Connect the edge material to the thin edge by stitching, pressing and / or needle punching.

8. The method for cutting the inner lining material of a cold-proof garment according to claim 7, characterized in that: In step four, when the control unit analyzes the image, the value of 'a' in the obtained cut coordinates (a, b) corresponds to the position in the length direction of the material, and the value of 'b' corresponds to the position in the width direction of the material.

9. A method for cutting the inner lining material of a cold-weather garment according to claim 7, characterized in that: In step five, the slitting machine moves the two cutting blades in the following way: a microcontroller is installed inside the slitting machine. The microcontroller receives the cutting data imported by the control unit. The microcontroller is connected to a cylinder, which drives the cutting blade to move to the position aligned with the cutting line.

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