A woolen sweater defect detection device and method

Abstract

The present invention relates to the technical field of clothing detection, and particularly relates to a device and method for detecting defects of a woolen sweater. The device includes a detection table, on the top of which a sliding plate is slidably connected. On both sides of the top of the sliding plate, circular grooves are provided. Inside each circular groove, a three-quarter circular frame is provided, and the circular frames are rotatably and slidably connected inside the circular grooves. Inside each circular frame, a cross plate is provided, and both sides of the cross plate are rotatably connected inside the circular frame through rotating shafts. By setting the two groups of lamp covers and the mutual cooperation of the discharging mechanism, the push plate, the rotating motor, the upper electric telescopic cylinder and other structures, the present invention can automatically switch the positions of the lamp covers and automatically push out the woolen sweaters on the lamp covers after the detection is completed. Therefore, it is not necessary for the detection personnel to pull out the woolen sweaters from the lamp covers and put them into the material box after the detection is completed, which saves time and effort and greatly improves the detection efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing detection, and particularly to a woolen sweater defect detection device and method. Background Art

[0002] A woolen sweater originally referred to a knitted sweater made of wool, which is also the meaning generally recognized by ordinary people. In fact, "woolen sweater" has now become a synonym for a class of products, that is, it is used to generally refer to "knitted woolen sweaters" or "woolen knitted products". Woolen knitted products mainly refer to fabrics woven from yarns spun from animal hair fibers such as wool, cashmere, and rabbit hair. For example, rabbit hair sweaters, Corriedale sweaters, lambswool sweaters, acrylic sweaters, etc. are all part of the "woolen sweater" family. When woolen sweaters are produced, there may be problems such as misstitches and missed stitches. Therefore, it is necessary to detect them during factory production and eliminate unqualified products.

[0003] In the prior art, there is a woolen sweater defect detection device with the publication number CN215066246U. By putting the woolen sweater outside the lampshade and moving the two lampshades to the outside respectively to stretch the woolen sweater, due to the illumination of the internal light, the defects on the surface of the woolen sweater are easily found. By rotating the turntable, it is convenient to switch the front and back sides of the woolen sweater. After detecting the main body, the woolen sweater is taken off, and then the two sleeves of the woolen sweater are respectively put on the two lampshades, so as to conveniently detect the sleeve part. The operation is convenient and saves a lot of time.

[0004] Although the above device is convenient for detecting the sleeve part of the woolen sweater, there are still some defects in the actual use process. Since there is no taking-out mechanism on the detection device, after the defect detection of the woolen sweater is completed, the tester still needs to remove the woolen sweater from the detection device and then put on the woolen sweater to be detected. This is not only time-consuming and laborious, but also greatly reduces the detection efficiency of the device.

[0005] Therefore, a woolen sweater defect detection device and method are proposed to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the deficiencies in the background art, and a woolen sweater defect detection device and method are proposed.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A woolen sweater defect detection device, including a detection table, a sliding plate is slidably connected to the top of the detection table, circular grooves are opened on both sides of the top of the sliding plate, three-quarter circular-shaped circular frames are provided inside the circular grooves, and the circular frames are rotatably and slidably connected to the inside of the circular grooves. Cross plates are provided inside the circular frames, both sides of the cross plates are rotatably connected to the inside of the circular frames through rotating shafts, an adjustment box is fixedly connected to the top of the cross plates, a pair of lamp shades are slidably connected to the top of the adjustment box, and adjustment mechanisms for adjusting the distance between the lamp shades are provided inside the adjustment boxes. A reset mechanism for resetting the position of the lamp shade is provided below each circular frame;

[0008] A rotary motor is fixedly connected to the outer wall of the circular frame at a position corresponding to one of the rotating shafts, the output end of the rotary motor passes through the circular frame and is fixedly connected to the side wall of one of the rotating shafts, an upper electric telescopic cylinder is fixedly connected to the top of the detection table, a rear plate is fixedly connected to the rear side of the sliding plate, and the output end of the upper electric telescopic cylinder is fixedly connected to the side wall of the rear plate;

[0009] U-shaped plates are provided at the top ends of the cross plates and outside the adjustment boxes. Push plates are slidably connected to both sides of the lamp shades inside the U-shaped plates. Extrusion seats are fixedly connected to the sides of the push plates away from each other, and the extrusion seats penetrate through the outer walls of the U-shaped plates. A pair of right-angled blocks with inclined surfaces are provided on both sides of the top of the detection table, and a discharging mechanism for pushing the U-shaped plates to move is provided on the sliding plate.

[0010] In the above technical solution, further, the discharging mechanism includes a double-headed electric telescopic cylinder. There are a pair of double-headed electric telescopic cylinders, and the double-headed electric telescopic cylinders are fixedly connected to both sides of the middle position of the top of the sliding plate. Rectangular plates are fixedly connected to the two output ends of the double-headed electric telescopic cylinder. Rectangular grooves adapted to the rectangular plates are opened on the side walls of the U-shaped plates. Upper springs are fixedly connected between the inner sides of the U-shaped plates and the side walls of the push plates. An adjustment mechanism for adjusting the distance between the right-angled blocks is provided on the detection table, and a winding mechanism for pulling the U-shaped plates back to their original positions is provided on the cross plates.

[0011] In the above technical solution, further, rollers are rotatably connected to the inner sides of the extrusion seats, and the outer walls of the rollers are in contact with the inclined surfaces of the right-angled blocks. A middle plate is fixedly connected to the middle of the inner side of the U-shaped plate.

[0012] In the above technical solution, further, the winding mechanism includes a pulling rope. A pair of fixed frames are fixedly connected to the bottom of the cross plate. A winding drum is rotatably connected to the inner side of each fixed frame. Two pairs of pulling ropes are provided. Each pair of pulling ropes is wound and fixedly connected to the outer wall of the winding drum. The other ends of the pulling ropes pass through the cross plate and are fixedly connected to the side wall of the U-shaped plate. A scroll spring is provided inside each winding drum. One end of the scroll spring is fixedly connected to the inner side of the winding drum, and the other end of the scroll spring is fixedly connected to the inner side of the fixed frame.

[0013] In the above technical solution, further, the outer sides of the rectangular grooves are all smooth arc surfaces, and rubber pads are fixedly connected to the sides of the push plates close to each other.

[0014] In the above technical solution, further, the reset mechanism includes racks. A rectangular frame is fixedly connected to the bottom of the sliding plate. Two pairs of racks are provided, and sliding blocks are fixedly connected to the side walls of the racks. A pair of sliding grooves are formed inside the rectangular frame. The sliding blocks are all slidably connected to the inner sides of the sliding grooves. Discs are fixedly connected to the bottoms of the circular frames, and gears meshing with the racks are fixedly connected to the center positions of the bottoms of the discs and inside the rectangular frame. Lower electric telescopic cylinders are fixedly connected to both sides of the rectangular frame. The output ends of the lower electric telescopic cylinders pass through the inside of the rectangular frame and are fixedly connected to a pushing plate for pushing the racks. Moving grooves are formed at the top of the detection table and corresponding to the rectangular frame.

[0015] In the above technical solution, further, receiving tables are provided on both sides of the detection table, and the inclined surfaces of the receiving tables are inclined. A control panel is fixedly connected to the front side of the detection table, and the control panel is electrically connected to the upper electric telescopic cylinder, the reset mechanism, the rotating motor, and the discharging mechanism through a controller.

[0016] In the above technical solution, further, the adjustment mechanism includes screws. Two pairs of screws are provided. Vertical plates are fixedly connected to the top of the detection table and on the side walls of the right-angle blocks. The screws all penetrate and are threadedly connected to the side walls of the vertical plates, and the side walls of the screws are rotatably connected to the side walls of the right-angle blocks. A pair of guide rods are fixedly connected to the opposite sides of the right-angle blocks, and the side walls of the guide rods all penetrate through the side walls of the vertical plates. A scale groove is formed at the top of one of the guide rods on the vertical plate.

[0017] A method for detecting defects of a woolen sweater includes the following steps:

[0018] Step 1, detection. The processed woolen sweater is put on one group of the lamp covers for detection;

[0019] Step 2: Position swapping. After the detection is completed, control the upper electric telescopic cylinder to start and push the sliding plate to move, changing the position of the lamp shade. At the same time, control one of the corresponding reset mechanisms to start and rotate a set of lamp shades that have completed detection into a state perpendicular to the sliding plate. Then control the rotary motor to drive the cross plate to rotate. Subsequently, after the sliding plate slides in place, move another set of lamp shades to the middle of the detection table, and the inspector can detect the defects of the woolen sweater on another set of lamp shades.

[0020] Step 3: Discharging. Subsequently, control the discharging mechanism to start and push the woolen sweater on a set of lamp shades that have completed detection out of the lamp shade. Finally, after the woolen sweater on another set of lamp shades is detected, control the upper electric telescopic cylinder to start and repeat the above operations in reverse.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. By setting up the cooperation of two sets of lamp shades with structures such as the discharging mechanism, push plate, rotary motor, and upper electric telescopic cylinder, the present invention can automatically switch the position of the lamp shade and automatically push out the woolen sweater on the lamp shade after detection. Therefore, it is not necessary for the inspector to pull out the woolen sweater from the lamp shade and put it into the material box after detection, saving time and effort and greatly improving the detection efficiency of the device.

[0023] 2. Through the setting of the adjustment mechanism, the present invention can adjust the distance between the discharging mechanisms according to the distance between the lamp shades during the detection of the woolen sweater, so as to be able to pick up woolen sweaters of different sizes and further improve the general performance of the device. Description of the Drawings

[0024] Figure 1 It is a front three-dimensional structural schematic diagram of the detection device of the present invention;

[0025] Figure 2 It is a rear three-dimensional structural schematic diagram of the detection device of the present invention;

[0026] Figure 3 It is an enlarged partial structural schematic diagram of part A in the attachment of the present invention; Figure 1

[0027] Figure 4 Figure 1 It is an enlarged partial structural schematic diagram of part B in the attachment of the present invention;

[0028] Figure 5

[0029] It is an overall external structural schematic diagram of the circular frame, disc, and rack of the present invention;

[0029] Figure 6 It is a bottom three-dimensional structural schematic diagram of the sliding plate of the present invention;

[0030] Figure 7Schematic diagram of the overall appearance structure of the circular frame and the horizontal plate of the present invention;

[0031] Figure 8 Schematic diagram of the three-dimensional structure of the partial cut-away view from above of the horizontal plate of the present invention.

[0032] In the figure: 1, inspection table; 2, lamp shade; 3, sliding plate; 4, circular groove; 5, circular frame; 6, horizontal plate; 7, adjustment box; 8, adjustment mechanism; 9, rotary motor; 10, upper electric telescopic cylinder; 11, rear plate; 12, U-shaped plate; 13, push plate; 14, extrusion seat; 15, right-angle block; 16, double-headed electric telescopic cylinder; 17, rectangular plate; 18, rectangular groove; 19, upper spring; 20, roller; 21, middle plate; 22, pull rope; 23, fixed frame; 24, winding drum; 25, scroll spring; 26, rubber pad; 27, rack; 28, rectangular frame; 29, sliding block; 30, sliding groove; 31, disc; 32, gear; 33, lower electric telescopic cylinder; 34, pushing plate; 35, material receiving table; 36, control panel; 37, screw; 38, vertical plate; 39, guide rod; 40, scale groove. Detailed implementation manners

[0033] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0034] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0035] As Figure 1-8 shown, a woolen sweater defect detection device includes an inspection table 1. A sliding plate 3 is slidably connected to the top of the inspection table 1. Circular grooves 4 are opened on both sides of the top of the sliding plate 3. Three-quarter circular-shaped circular frames 5 are provided inside the circular grooves 4, and the circular frames 5 are rotatably and slidably connected inside the circular grooves 4. Horizontal plates 6 are provided inside the circular frames 5. Both sides of the horizontal plates 6 are rotatably connected inside the circular frames 5 through rotating shafts. An adjustment box 7 is fixedly connected to the top of the horizontal plates 6. A pair of lamp shades 2 are slidably connected to the top of the adjustment box 7. An adjustment mechanism 8 for adjusting the distance between the lamp shades 2 is provided inside the adjustment box 7. The adjustment mechanism 8 is mainly composed of structures such as bolts and adjustment blocks, which can limit the sliding position of the lamp shades 2 on the adjustment box 7, thereby ensuring that the distance between the lamp shades 2 can be adjusted to stretch woolen sweaters of different specifications for defect detection, improving the flexibility of the device. A reset mechanism for resetting the positions of the lamp shades 2 is provided below the circular frames 5;

[0036] A rotary motor 9 is fixedly connected to the outer wall of the circular frame 5 at a position corresponding to one of the rotating shafts. The output end of the rotary motor 9 passes through the circular frame 5 and is fixedly connected to the side wall of one of the rotating shafts. An upper electric telescopic cylinder 10 is fixedly connected to the top of the detection table 1. A rear plate 11 is fixedly connected to the rear side of the sliding plate 3. The output end of the upper electric telescopic cylinder 10 is fixedly connected to the side wall of the rear plate 11;

[0037] U-shaped plates 12 are provided at the top of the horizontal plate 6 and outside the adjustment box 7. Push plates 13 are slidably connected to the inner sides of the U-shaped plates 12 on both sides of the lamp shade 2. Extrusion seats 14 are fixedly connected to the sides of the push plates 13 away from each other, and the extrusion seats 14 penetrate through the outer walls of the U-shaped plates 12. A pair of right-angle blocks 15 with inclined surfaces are provided on both sides of the top of the detection table 1, and the inclination of the right-angle blocks 15 is the same as that of the lamp shade 2, which is convenient for the push plates 13 to slide on the outer wall of the lamp shade 2 and take the woolen sweater off the lamp shade 2. A discharging mechanism for pushing the U-shaped plates 12 to move is provided on the sliding plate 3;

[0038] The discharging mechanism includes double-headed electric telescopic cylinders 16. There are a pair of double-headed electric telescopic cylinders 16, and the double-headed electric telescopic cylinders 16 are fixedly connected to both sides of the middle position at the top of the sliding plate 3. Rectangular plates 17 are fixedly connected to the two output ends of the double-headed electric telescopic cylinders 16. Rectangular grooves 18 adapted to the rectangular plates 17 are provided on the side walls of the U-shaped plates 12. By inserting the rectangular plates 17 into the rectangular grooves 18, the U-shaped plates 12 are pushed to move, which can limit the sliding position of the U-shaped plates 12 and prevent the U-shaped plates 12 from moving up and down randomly during the process of the double-headed electric telescopic cylinders 16 pushing the U-shaped plates 12 to slide, affecting the stability during the discharging process. Upper springs 19 are fixedly connected between the inner sides of the U-shaped plates 12 and the side walls of the push plates 13. The upper springs 19 are convenient for pulling the push plates 13 to reset during reset. An adjustment mechanism for adjusting the distance between the right-angle blocks 15 is provided on the detection table 1, and a winding mechanism for pulling the U-shaped plates 12 to reset is provided on the horizontal plate 6;

[0039] The winding mechanism includes pull ropes 22. A pair of fixed frames 23 are fixedly connected to the bottom of the horizontal plate 6. Winding drums 24 are rotatably connected to the inner sides of the fixed frames 23. There are two pairs of pull ropes 22. Each pair of pull ropes 22 is wound and fixedly connected to the outer walls of the winding drums 24. The other ends of the pull ropes 22 pass through the horizontal plate 6 and are fixedly connected to the side walls of the U-shaped plates 12. Scroll springs 25 are provided inside the winding drums 24. One end of each scroll spring 25 is fixedly connected to the inside of the winding drum 24, and the other ends of the scroll springs 25 are fixedly connected to the inside of the fixed frames 23;

[0040] During the inspection process of the woolen sweater, the inspector first puts the woolen sweater between a group of lamp shades 2 in the middle of the inspection table 1 for inspection, and turns on the power of the lamp shades 2 to make the lamp shades 2 emit inspection light, which is convenient for the inspector to detect the defects on the woolen sweater. At this time, the lamp shades 2 can be rotated to drive the cross plate 6 and the circular frame 5 to rotate inside the circular groove 4 to conduct a comprehensive inspection of the woolen sweater. Subsequently, when the inspection of the woolen sweater is completed, the inspector controls the upper electric telescopic cylinder 10 to start through the control panel 36, and pushes the rear plate 11 and the sliding plate 3 to move on the inspection table 1, so as to push a group of inspected lamp shades 2 to the other side of the inspection table 1. At this time, the inspector can turn around to pick up a new woolen sweater to be inspected, and at the same time control one of the reset mechanisms in the corresponding direction to start to rotate a group of inspected lamp shades 2 into a state perpendicular to the sliding plate 3, and then control the rotation motor 9 to drive the cross plate 6 to rotate, and then turn the lamp shades 2 over;

[0041] Subsequently, the sliding plate 3 is pushed to a designated position, so that another group of lamp shades 2 moves to the middle of the inspection table 1, and the rollers 20 on the inspected circular frame 5 move to the side of the corresponding right-angle block 15. At this time, the inspector can put the woolen sweater to be inspected on another group of lamp shades 2 for inspection. At the same time, the control panel 36 will control the double-headed electric telescopic cylinder 16 to start, push the rectangular plate 17 into the rectangular groove 18 on the inspected circular frame 5, and then through the continuous operation of the double-headed electric telescopic cylinder 16, it will push the U-shaped plate 12 to slide out from the cross plate 6 and pull the pull rope 22, and pull out a part of the pull rope 22 wound on the winding drum 24. Since the other end of the pull rope 22 is fixed on the winding drum 24, the winding drum 24 will be driven to rotate simultaneously when the pull rope 22 is pulled out. And because one end of the scroll spring 25 is fixed on the inner wall of the winding drum 24 and the other end is fixed on the inner side of the fixed frame 23, through the rotation of the winding drum 24, the scroll spring 25 will be gradually compressed. However, through the movement of the U-shaped plate 12, the push plate 13 and the extrusion seat 14 are driven to move, and the roller 20 is driven to roll on the inclined surface of the right-angle block 15. Then, through the inclined surface of the right-angle block 15, the roller 20 and the extrusion seat 14 are gradually squeezed, so the push plate 13 will be pushed to move along the inclined surface of the outer wall of a group of inspected lamp shades 2, and the middle plate 21 will be driven to move, so as to gradually take off the woolen sweater on a group of inspected lamp shades 2;

[0042] Meanwhile, the upper spring 19 will be gradually stretched until the woolen sweater is removed from the group of lamp shades 2 that have completed the detection. Subsequently, the woolen sweater will fall onto the receiving table 35 under its own gravity and then slide into the material box below. Then, the double-headed electric telescopic cylinder 16 is controlled to move in the reverse direction for reset. During this process, the U-shaped plate 12 maintains tension under the action of the pulling rope 22 and the scroll spring 25. Therefore, when resetting, the U-shaped plate 12 will closely follow the rectangular plate 17 to move, avoiding displacement. Subsequently, the U-shaped plate 12 moves beside the cross plate 6 (it should be noted here that when the U-shaped plate 12 moves beside the cross plate 6, the scroll spring 25 is still in a compressed state, ensuring that the U-shaped plate 12 is closely attached to the cross plate 6 and preventing it from affecting the normal insertion of the rectangular plate 17 into the rectangular groove 18 next time). At the same time, the detection of the woolen sweater on another group of lamp shades 2 is completed. The operator controls the upper electric telescopic cylinder 10 to start through the control panel 36, and sequentially controls the rotation motor 9 and the lower electric telescopic cylinder 33 to start, repeating the above operations in reverse. In this way, the rapid conversion of the lamp shade 2 can be completed, and there is no need for the operator to pull the woolen sweater off the lamp shade 2 and put it into the material box after the detection is completed, saving time and effort and greatly improving the detection efficiency of the device.

[0043] To improve the smoothness during the operation of the device, rollers 20 are rotatably connected to the inner sides of the extrusion seats 14, and the outer walls of the rollers 20 are in contact with the inclined surfaces of the right-angle blocks 15. Through the setting of the rollers 20, the sliding friction when the extrusion seats 14 contact the right-angle blocks 15 can be changed into rolling friction, thereby improving the smoothness during the operation of the device. A middle plate 21 is fixedly connected to the middle part of the inner side of the U-shaped plate 12. Through the setting of the middle plate 21, it is convenient to push the middle part of the woolen sweater out of the lamp shade 2, further improving the smoothness during the process of taking out the woolen sweater.

[0044] To improve the stability during the operation of the device, the outer sides of the rectangular grooves 18 are all set as smooth arc surfaces, which is convenient for the rectangular plates 17 to be better extruded and slide into the rectangular grooves 18, improving the smoothness during the operation of the device. Rubber pads 26 are fixedly connected to the closer sides of the push plates 13. Through the setting of the rubber pads 26, it is convenient to improve the anti-slip property when the push plates 13 push the woolen sweaters off the lamp shades 2, and the woolen sweaters can be taken out of the lamp shades 2 more conveniently.

[0045] In order to enable the lampshade 2 to rotate flexibly, facilitate the multi-angle detection of the woolen sweaters by the inspectors, and reset the rotation position of the lampshade 2 when the woolen sweater is taken out, the reset mechanism includes a rack 27. A rectangular frame 28 is fixedly connected to the bottom of the sliding plate 3. There are a pair of racks 27, and sliding blocks 29 are fixedly connected to the side walls of the racks 27. A pair of sliding grooves 30 are opened inside the rectangular frame 28, and the sliding blocks 29 are all slidably connected inside the sliding grooves 30. Discs 31 are fixedly connected to the bottoms of the circular frames 5. Here, it should be noted that there is a certain distance between the disc 31 and the cross plate 6, which will not hinder the normal flipping of the cross plate 6. And at the center position of the bottom of the disc 31 and inside the rectangular frame 28, gears 32 meshing with the rack 27 are fixedly connected. Electric telescopic cylinders 33 are fixedly connected to both sides of the rectangular frame 28. The output end of the lower electric telescopic cylinder 33 passes through the inside of the rectangular frame 28 and is fixedly connected to a push plate 34 for pushing the rack 27. A moving groove is opened at the top of the inspection table 1 at a position corresponding to the rectangular frame 28.

[0046] Due to the sliding restriction of the sliding block 29 on the rack 27 inside the sliding groove 30, the circular frame 5 and the disc 31 can only rotate to one side, pushing the rack 27 to slide outward, thereby meeting the rotation of the lampshade 2 and ensuring that the inspectors can perform multi-angle detection on the woolen sweaters. Subsequently, after the detection is completed, when the sliding plate 3 is moved to one side of the inspection table 1 by the upper electric telescopic cylinder 10, one of the lower electric telescopic cylinders 33 in the corresponding direction can be controlled to start and drive the push plate 34 to move, thereby pushing the rack 27 and the sliding block 29 to slide inside the sliding groove 30, and at the same time driving the meshing gear 32 to rotate until the sliding block 29 is pushed to the end of the sliding groove 30. At this time, a group of lampshades 2 on the cross plate 6 are in a state perpendicular to the sliding plate 3, facilitating the normal material taking of the subsequent discharging mechanism. Subsequently, after the discharging mechanism runs to completion, control the lower electric telescopic cylinder 33 to reset and release the extrusion on the rack 27.

[0047] To improve the convenience performance of the device, receiving platforms 35 are provided on both sides of the inspection table 1, and the inclined surfaces of the receiving platforms 35 are inclined. Through the setting of the receiving platforms 35, it is convenient to discharge the woolen sweaters pushed out by the discharging mechanism. Before the detection, the material box can be placed in front of the receiving platform 35, thereby ensuring that the woolen sweaters sliding down from the receiving platform 35 can be collected in the material box. A control panel 36 is fixedly connected to the front side of the inspection table 1, and the control panel 36 is electrically connected to the upper electric telescopic cylinder 10, the reset mechanism, the rotating motor 9, and the discharging mechanism through a controller. Through the setting of the control panel 36, the upper electric telescopic cylinder 10, the lower electric telescopic cylinder 33, the rotating motor 9, and the double-headed electric telescopic cylinder 16 can be electrically connected together. Then, by setting the program, the taking out of the woolen sweater and the replacement of the position of the lampshade 2 can be automatically controlled, improving the automation efficiency of the device.

[0048] In order to be able to adjust the distance between the discharging mechanisms according to the distance between the lamp shades 2 during the detection of the woolen sweaters, the adjusting mechanism includes a screw rod 37. There are two pairs of screw rods 37. Vertical plates 38 are fixedly connected to the top of the detection table 1 and on the side walls of the right-angle blocks 15. The screw rods 37 all penetrate and are threadedly connected to the side walls of the vertical plates 38. The side walls of the screw rods 37 are rotatably connected to the side walls of the right-angle blocks 15. A pair of guide rods 39 are fixedly connected to the mutually remote sides of the right-angle blocks 15, and the side walls of the guide rods 39 all penetrate through the side walls of the vertical plates 38. A scale groove 40 is formed at the top of one of the guide rods 39 on the vertical plate 38;

[0049] When adjusting the opening detection distance between the lamp shades 2 according to woolen sweaters of different sizes, the screw rod 37 needs to be rotated. Since the screw rod 37 is threadedly connected through the vertical plate 38, the screw rod 37 moves spirally outwards or inwards, thereby driving the right-angle block 15 to move. At the same time, the guide rod 39 is driven to slide on the vertical plate 38, playing a guiding role to prevent the right-angle block 15 from rotating together with the screw rod 37, improving the stability during the operation of the device. Meanwhile, the moving distance of the right-angle block 15 can be accurately adjusted by the position of the scale groove 40 penetrating through the guide rod 39 on the vertical plate 38, thereby ensuring the normal operation of the discharging mechanism and improving the general performance of the device.

[0050] A method for detecting defects of woolen sweaters includes the following steps:

[0051] Step 1: Detection. The processed woolen sweater is put on one group of lamp shades 2 for detection;

[0052] Step 2: Position change. After the detection is completed, control the upper electric telescopic cylinder 10 to start and push the sliding plate 3 to move, change the position of the lamp shade 2. At the same time, control one of the reset mechanisms in the corresponding direction to start and rotate the detected group of lamp shades 2 into a state perpendicular to the sliding plate 3. Then control the rotating motor 9 to drive the cross plate 6 to rotate. Subsequently, after the sliding plate 3 slides in place, the other group of lamp shades 2 moves to the middle of the detection table 1, and the detection personnel can detect the defects of the woolen sweater on the other group of lamp shades 2;

[0053] Step 3: Discharging. Subsequently, control the discharging mechanism to start and push the woolen sweater on one group of lamp shades 2 that has been inspected out from the lamp shade 2. Finally, after the inspection of the woolen sweater on the other group of lamp shades 2 is completed, control the upper electric telescopic cylinder 10 to start and repeat the above operations in the reverse direction.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention.

[0055] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. What is described in the above-mentioned embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, various changes and improvements will occur to the present invention, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A woolen sweater defect detection device, including a detection table, characterized in that: A sliding plate is slidably connected to the top of the detection table. Circular grooves are provided on both sides of the top of the sliding plate. Inside the circular grooves, three-quarter circular frames are provided, and the circular frames are rotatably and slidably connected to the inside of the circular grooves. Cross plates are provided inside the circular frames. Both sides of the cross plates are rotatably connected to the inside of the circular frames through rotating shafts. An adjusting box is fixedly connected to the top of the cross plates. A pair of lamp shades are slidably connected to the top of the adjusting boxes. Adjusting mechanisms for adjusting the distance between the lamp shades are provided inside the adjusting boxes. Reset mechanisms for resetting the positions of the lamp shades are provided below the circular frames. A rotating motor is fixedly connected to the outer wall of the circular frame at a position corresponding to one of the rotating shafts. The output end of the rotating motor passes through the circular frame and is fixedly connected to the side wall of one of the rotating shafts. An upper electric telescopic cylinder is fixedly connected to the top of the detection table. A rear plate is fixedly connected to the rear side of the sliding plate. The output end of the upper electric telescopic cylinder is fixedly connected to the side wall of the rear plate. U-shaped plates are provided at the top ends of the cross plates and outside the adjusting boxes. Inside the U-shaped plates and on both sides of the lamp shades, push plates are slidably connected. On the opposite sides of the push plates, extrusion seats are fixedly connected, and the extrusion seats penetrate through the outer walls of the U-shaped plates. On both sides of the top of the detection table, a pair of right-angled blocks with inclined surfaces are provided. A discharging mechanism for pushing the U-shaped plates to move is provided on the sliding plate. The discharging mechanism includes a double-headed electric telescopic cylinder. There are a pair of double-headed electric telescopic cylinders, and the double-headed electric telescopic cylinders are fixedly connected to both sides of the middle position of the top of the sliding plate. The two output ends of the double-headed electric telescopic cylinder are fixedly connected with rectangular plates. Rectangular grooves adapted to the rectangular plates are provided on the side walls of the U-shaped plates. Upper springs are fixedly connected between the inner sides of the U-shaped plates and the side walls of the push plates. An adjusting mechanism for adjusting the distance between the right-angled blocks is provided on the detection table. A winding mechanism for pulling the U-shaped plates back to their original positions is provided on the cross plate. The reset mechanism includes racks. A rectangular frame is fixedly connected to the bottom of the sliding plate. There are a pair of racks, and sliding blocks are fixedly connected to the side walls of the racks. A pair of sliding grooves are provided inside the rectangular frame. The sliding blocks are slidably connected to the inside of the sliding grooves. Discs are fixedly connected to the bottoms of the circular frames, and gears meshing with the racks are fixedly connected to the centers of the bottoms of the discs and inside the rectangular frame. Lower electric telescopic cylinders are fixedly connected to both sides of the rectangular frame. The output ends of the lower electric telescopic cylinders pass through the inside of the rectangular frame and are fixedly connected with push plates for pushing the racks. A moving groove is provided on the top of the detection table corresponding to the rectangular frame.

2. The woolen sweater defect detection device according to claim 1, characterized in that: Rollers are rotatably connected to the inner sides of the extrusion seats, and the outer walls of the rollers are in contact with the inclined surfaces of the right-angled blocks. A middle plate is fixedly connected to the middle of the inside of the U-shaped plate.

3. The woolen sweater defect detection device according to claim 1, characterized in that: The winding mechanism includes pulling ropes. A pair of fixed frames are fixedly connected to the bottoms of the cross plates. Winding drums are rotatably connected to the inside of the fixed frames. There are two pairs of pulling ropes, and each pair of pulling ropes is wound and fixedly connected to the outer walls of the winding drums. The other ends of the pulling ropes pass through the cross plates and are fixedly connected to the side walls of the U-shaped plates. Scroll springs are provided inside the winding drums. One end of the scroll spring is fixedly connected to the inside of the winding drum, and the other end of the scroll spring is fixedly connected to the inside of the fixed frame.

4. The woolen sweater defect detection device according to claim 1, characterized in that: The outer sides of the rectangular grooves are all smooth arc surfaces. Rubber pads are fixedly connected to the sides of the push plates close to each other.

5. A woolen sweater defect detection device according to claim 1, characterized in that: Receiving tables are provided on both sides of the inspection table, and the inclined surfaces of the receiving tables are inclined. A control panel is fixedly connected to the front side of the inspection table, and the control panel is electrically connected to the upper electric telescopic cylinder, the reset mechanism, the rotating motor, and the discharging mechanism through a controller.

6. The woolen sweater defect detection device according to claim 1, characterized in that: The adjustment mechanism includes screws. There are two pairs of screws. Vertical plates are fixedly connected to the top of the inspection table and on the side walls of the right-angle blocks. The screws all penetrate and are threadedly connected to the side walls of the vertical plates, and the side walls of the screws are rotatably connected to the side walls of the right-angle blocks. A pair of guide rods are fixedly connected to the opposite sides of the right-angle blocks, and the side walls of the guide rods all penetrate through the side walls of the vertical plates. A scale groove is formed at the top of one of the guide rods on the vertical plate.

7. A method for detecting defects of a woolen sweater, which is applicable to a woolen sweater defect detection device according to any one of claims 1-6, characterized in that, It includes the following steps: Step 1, inspection. The completed woolen sweaters are put on one set of lamp covers for inspection. Step 2, position change. After the inspection is completed, control the upper electric telescopic cylinder to start and push the sliding plate to move, change the position of the lamp cover. At the same time, control one of the reset mechanisms in the corresponding direction to start and rotate the set of lamp covers that have been inspected into a state perpendicular to the sliding plate. Then control the rotating motor to drive the cross plate to rotate. Subsequently, after the sliding plate slides in place, the other set of lamp covers moves to the middle of the inspection table, and the inspector can inspect the defects of the woolen sweaters on the other set of lamp covers. Step 3, blanking. Then control the discharging mechanism to start and push the woolen sweaters on one set of lamp covers that have been inspected off the lamp covers. Finally, after the inspection of the woolen sweaters on the other set of lamp covers is completed, control the upper electric telescopic cylinder to start and repeat the above operations in the reverse direction.

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