Defective product rejection device in pull-up diaper production

Abstract

The present invention relates to the technical field of pull-up diaper production, and discloses a device for removing defective products in pull-up diaper production, including a frame, a support column rotatably arranged on the frame, the support column is arranged vertically, a driving device for driving the support column to rotate is arranged on the frame, a plurality of support rods are arranged on the side of the support column, the plurality of support rods are evenly arranged circumferentially on the side of the support column, the axis of the support rod is perpendicular to the axis of the support column, a clamp for clamping the pull-up diaper is rotatably arranged at the front end of each support rod, two groups of cameras are arranged at the top of the support column, the clamp passes through the camera during the revolution and is located directly below the camera; the clamp includes upper and lower clamping plates, the clamp is connected with a linkage assembly for driving its rotation, and the clamp is connected with a blanking assembly for pushing out the pull-up diaper. The present invention can automatically detect the pull-up diaper products and remove the defective products at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of pull-up diaper production, and particularly to a device for removing defective products in pull-up diaper production. Background Art

[0002] Pull-up diapers are a type of hygiene product used by infants. During the production of pull-up diapers, it is necessary to inspect the surface of the pull-up diapers to observe whether there are defective products with damage on the surface. Defective products need to be removed to avoid side leakage or other poor usage experiences when infants use them.

[0003] The existing Chinese utility model patent with the publication number of "CN217314574U" and the patent name of "Surface defect detection and removal system for diaper production line" provides a detection device during diaper production that can also remove defective products. However, during the use of this device, the camera below detects through glass. When there are stains adhered to the glass, the detection through the glass will continuously affect the detection results. Therefore, a new defective product detection device and removal device are needed to solve this problem. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for removing defective products in pull-up diaper production, which has the effect of automatically detecting pull-up diapers and removing defective products at the same time.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A device for removing defective products in pull-up diaper production includes a frame and a support column rotatably arranged on the frame. The support column is vertically arranged, and a driving device for driving the support column to rotate is arranged on the frame. A number of support rods are arranged on the side of the support column, and the number of support rods is evenly arranged circumferentially on the side of the support column. The axis of the support rod is perpendicular to the axis of the support column. A clamp for clamping the pull-up diaper is rotatably arranged at the front end of each support rod. Two groups of cameras are arranged at the top of the support column. The clamp passes through the camera during the revolution and is located directly below the camera. The clamp includes an upper and a lower clamping plate. The clamp is connected with a linkage component for driving it to rotate. During the process that the linkage component drives the clamp to rotate 180°, the upper clamping plate is simultaneously driven to open, and the lower clamping plate after rotation is driven to close. The clamp is connected with a blanking component for pushing out the pull-up diaper.

[0006] By adopting the above technical solution, during use, the driving device drives the support column to rotate, the support column drives the support rod to rotate, and the support rod drives the fixture to revolve together. A feeding device such as a conveyor belt can be arranged on one side of the device to convey the pull-up pants to the fixture. At this time, the clamping plate on the upper side of the fixture is in an open state. During the revolution of the fixture, it passes through the first camera, and the camera takes pictures of the pull-up pants on the fixture to detect whether the first side meets the standard. After the fixture passes through the first camera, the linkage component flips the fixture 180 degrees. During the flipping process, the clamping plate located above rotates to the bottom and closes, and the clamping plate located below rotates to the upper side and opens, so that the pull-up pants are turned over. When the fixture continues to rotate, it passes through the second camera, and the second camera takes pictures of the second side of the pull-up pants to detect whether the second side of the pull-up pants meets the standard. After detecting both sides, the unqualified pull-up pants are pushed out of the fixture through the blanking component, and the qualified pull-up pants are pushed from the fixture to the next process, so as to achieve the effect of detecting the product and removing the defective products.

[0007] As a further setting of the present invention, the linkage component includes a sleeve rotatably arranged at the end of the support rod. The sleeve is symmetrically provided with chutes penetrating the side wall of the sleeve up and down. The central axis of the chute is parallel to the central axis of the sleeve. A slider is slidably clamped in the chute. One end of the slider facing the fixture is fixedly provided with a connecting handle. One end of the connecting handle is hinged with a connecting rod, and the upper and lower connecting rods are respectively hinged with the upper and lower clamping plates. A groove is arranged on the outer surface of the support rod. One side of the slider facing the support rod is fixedly provided with a convex block, and the convex block is slidably clamped in the groove. The sleeve is connected with a driving component for driving it to rotate. When the driving component drives the sleeve to rotate, the convex block moves along the groove, and the slider reciprocates in the chute.

[0008] As a further setting of the present invention, the groove includes a circular groove and a special-shaped groove arranged on the surface of the support rod. The center of the circular groove coincides with the center of the support rod. The head and tail of the circular groove are connected with the special-shaped groove. The special-shaped groove is in a smooth V shape, and the vertex of the special-shaped groove is located at the uppermost end of the support rod.

[0009] As a further setting of the present invention, the driving component includes a gear coaxially arranged outside the sleeve and an arc-shaped rack fixedly arranged on the machine frame. When the gear passes through the arc-shaped rack during the revolution of the support column, the gear rotates 180°. The gear is connected with a limiting component, and the limiting component is used for limiting the gear when the gear disengages from the rack.

[0010] By adopting the above technical solution, in actual work, the driving device drives the support column to rotate, the support column drives the support rod to rotate, and the support rod drives the fixture to revolve together. During the rotation of the support rod, the sleeve on the support rod revolves together. During the revolution, the gear on the sleeve meshes with the arc rack fixed on the frame and causes the gear to rotate. The gear drives the sleeve to rotate, enabling the sleeve to rotate 180°. During the rotation of the sleeve, on the one hand, it drives the fixture to rotate 180° together, and on the other hand, it drives the slider to rotate together. When the slider rotates, the convex block at the bottom moves in the groove. When the convex block slides in the circular groove, the slider only rotates with the sleeve and does not move in the chute. When the convex block moves from the circular groove to the special-shaped groove, a force is exerted on the convex block in the special-shaped groove, causing the slider to move linearly along the chute while rotating with the sleeve. When the slider moves linearly along the chute, the slider drives the connecting handle, the connecting handle drives the connecting rod, and the connecting rod drives the clamping plate to move, thereby realizing the opening and closing of the clamping plate;

[0011] Specifically, before the gear meshes with the arc rack, the clamping plate located above is in an open state. At this time, the slider is at the farthest end from the fixture in the chute. When the sleeve rotates, the slider gradually approaches the fixture, so that the clamping plate located above gradually closes when it rotates to the lower side. When the clamping plate above rotates to the lower side and closes, the convex block connected to the slider at the bottom slides from the circular groove to the special-shaped groove. Under the action of the special-shaped groove, the slider gradually moves away from the fixture. During the sliding process of the slider, it drives the connecting handle and the connecting rod to move, and the connecting rod drives the clamping plate to slowly open, thereby realizing that the clamping plate located below gradually rotates to the upper side and gradually opens. During this process, the pull-up pants also realize turning over.

[0012] As a further setting of the present invention, the limiting component includes a limiting hole provided on the side of the gear, a limiting rod with an end slidably inserted into the limiting hole, a limiting disk connected to the limiting rod, and a fixing column coaxially and fixedly connected to the limiting disk. There are two limiting holes, and the connection line of the two limiting holes passes through the center of the gear and is symmetrically arranged at the upper and lower ends of the gear. The limiting rod is slidably connected to the support rod and extends into the interior of the support column. The fixing column is coaxially arranged in the interior of the support column and fixedly connected to the frame. The limiting disk is arranged at the upper end of the fixing column. The limiting disk is circular, one side of the limiting disk is a plane, a limiting baffle is arranged at the edge of the limiting disk, a positioning rod is vertically fixed at the end of the limiting rod located inside the support column, the positioning rod is in sliding contact with the limiting baffle, and the limiting rod is connected with a reset component.

[0013] As a further setting of the present invention, the reset component includes a spring arranged on the outer side of the support column of the limiting rod. One end of the spring is fixedly connected to the support column, and one end is fixedly connected to the limiting rod.

[0014] By adopting the above technical solution, when the gear is not engaged with the arc-shaped rack, the gear needs to be limited to ensure that the entire fixture is stable during the revolution. Otherwise, the fixture is easy to flip over when it does not need to flip over, resulting in instability of the device. During the operation of the limit assembly, when the limit rod is inserted into the limit hole of the gear, the gear will be limited and unable to rotate. When the gear is about to engage with the arc-shaped rack, the pillar will drive the limit rod to revolve together during the revolution. Because the limit plate is fixed, the positioning rod at one end of the limit rod will rotate along the limit baffle at the edge of the limit plate. When the positioning rod moves from the arc surface of the limit baffle to the plane, the positioning rod will Drive the limit rod to slide toward the inside of the pillar. During the sliding process, the other end of the limit rod will disengage from the limit hole of the gear, thereby causing the gear to disengage from the limit. At this time, the gear and the arc-shaped rack are meshed, and the gear can rotate. When the gear rotates a small angle, the positioning rod rotates from the plane of the limit baffle to the arc-shaped surface again. At this time, under the action of the spring, one end of the limit rod will slide toward the outside of the pillar, thereby resisting the side of the gear. After the gear rotates 180° and the limit hole rotates 180°, the limit rod will align with the limit hole again. Under the action of the spring, the limit rod is inserted into the limit hole to limit the gear. The gear also disengages from the arc-shaped rack and revolves with the pillar.

[0015] As a further configuration of the present invention, the blanking assembly includes an electric push rod arranged inside the support rod, and the working end of the electric push rod is coaxially arranged with the support rod and faces the clamp.

[0016] The beneficial effects of the present invention are:

[0017] 1. During use, the driving device drives the pillar to rotate, the pillar drives the support rod to rotate, and the support rod drives the clamp to revolve together. A conveyor belt or other feeding device can be set on one side of the device to convey the pull-up pants to the clamp. At this time, the clamp on the upper side of the clamp is in an open state. During the revolution of the clamp, it passes through the first camera, and the camera takes a picture of the pull-up pants on the clamp to detect whether the first side meets the standard. After the clamp passes the first camera, the linkage assembly flips the clamp 180 degrees, and in the flipping process, the upper clamp rotates to the bottom and closes, and the lower clamp rotates to the top and opens, so that the pull-up pants are turned over. When the clamp continues to rotate, it passes the second camera, and the second camera takes a picture of the second side of the pull-up pants to detect whether the second side of the pull-up pants meets the standard. After detection on both sides, the unqualified pull-up pants are pushed out of the clamp through the unloading assembly, and the qualified pull-up pants are pushed from the clamp to the next process, thereby achieving the effect of testing the product and removing defective products.

[0018] 2. In actual work, the driving device drives the pillar to rotate, the pillar drives the support rod to rotate, the support rod drives the clamp to revolve together, and during the rotation of the support rod, the sleeve on the support rod revolves together, and during the revolution, the gear on the sleeve will mesh with the arc-shaped rack fixed on the frame and make the gear rotate, the gear drives the sleeve to rotate, so that the sleeve can rotate 180°, and during the rotation of the sleeve, on the one hand, it drives the clamp to rotate 180° together, and on the other hand, it drives the slider to rotate together, when the slider is rotating, the protrusion at the bottom will move in the groove, when the protrusion slides in the circular groove, the slider only rotates with the sleeve, and will not move in the slide groove, when the protrusion moves from the circular groove to the special-shaped groove, the special-shaped groove will apply a force to the protrusion, so that the slider will rotate with the sleeve while also moving in a straight line along the slide groove, when the slider moves in a straight line along the slide groove, the slider drives the connecting handle, the connecting handle drives the connecting rod, and the connecting rod drives the splint to move, thereby realizing the opening and closing of the splint;

[0019] 3. When the gear is not engaged with the arc-shaped rack, the gear needs to be limited to ensure that the entire fixture is stable during the revolution. Otherwise, the fixture is easy to flip when it does not need to flip, resulting in instability of the device. During the operation of the limit assembly, when the limit rod is inserted into the limit hole of the gear, the gear will be limited and unable to rotate. When the gear is about to engage with the arc-shaped rack, the pillar will drive the limit rod to orbit together during the revolution. Because the limit plate is fixed, the positioning rod at one end of the limit rod will rotate along the limit baffle on the edge of the limit plate. When the positioning rod moves from the arc surface of the limit baffle to the plane, the positioning rod will drive the limit The rod slides toward the inside of the pillar, and during the sliding process, the other end of the limit rod will disengage from the limit hole of the gear, thereby causing the gear to disengage from the limit. At this time, the gear and the arc-shaped rack are meshed, and the gear can rotate. When the gear rotates a small angle, the positioning rod rotates from the plane of the limit baffle to the arc-shaped surface again. At this time, under the action of the spring, one end of the limit rod will slide toward the outside of the pillar, thereby resisting the side of the gear. After the gear rotates 180° and the limit hole rotates 180°, the limit rod will align with the limit hole again. Under the action of the spring, the limit rod is inserted into the limit hole to limit the gear, and the gear also disengages from the arc-shaped rack and revolves with the pillar. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0022] Figure 2 is a schematic structural diagram of the linkage component of this embodiment;

[0023] Figure 3 is Figure 2 a sectional view of;

[0024] Figure 4 is a schematic structural diagram of the groove;

[0025] Figure 5 is a schematic structural diagram of the limit component of this embodiment;

[0026] Figure 6 is a schematic structural diagram of the limit disk of this embodiment;

[0027] In the figure, 1, frame; 2, strut; 3, support rod; 31, groove; 311, circular groove; 312, special-shaped groove; 4, fixture; 41, clamping plate; 5, camera; 6, linkage component; 61, sleeve; 62, sliding groove; 63, slider; 64, connecting handle; 65, connecting rod; 66, convex block; 7, driving component; 71, gear; 72, arc rack; 8, limit component; 81, limit hole; 82, limit rod; 83, limit disk; 84, fixed column; 85, limit baffle; 86, positioning rod; 87, spring; 9, electric push rod. Specific embodiments

[0028] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0029] An apparatus for removing defective products in the production of pull-up pants, refer to Figures 1 to 6, including a frame 1 and a support column 2 rotatably arranged on the frame 1. The support column 2 is vertically arranged, and a driving device for driving the support column 2 to rotate is arranged on the frame 1. In this embodiment, the driving device is a prior art, which can be a rotating disc, or a motor drives its rotation through an existing transmission method, or any other method capable of rotating the support column 2 is acceptable. A number of support rods 3 are arranged on the side of the support column 2, and the number of support rods 3 is evenly arranged circumferentially on the side of the support column 2. The axis of the support rod 3 is perpendicular to the axis of the support column 2. A clamp 4 for clamping the pull-up pants is rotatably arranged at the front end of each support rod 3. The clamp 4 includes two upper and lower clamping plates 41. Two groups of cameras 5 are arranged at the top of the support column 2. The clamp 4 passes by the camera 5 during the revolution and is located directly below the camera 5; the clamp 4 is connected with an interlocking component 6 for driving it to rotate. During the process that the interlocking component 6 drives the clamp 4 to rotate 180°, the upper clamping plate 41 is simultaneously driven to open, and the lower clamping plate 41 that rotates to the lower part is driven to close. The clamp 4 is connected with a blanking component for pushing out the pull-up pants.

[0030] During the use process, the driving device drives the support column 2 to rotate, the support column 2 drives the support rod 3 to rotate, and the support rod 3 drives the clamp 4 to revolve together. A feeding device such as a conveyor belt can be arranged on one side of the device to convey the pull-up pants into the clamp 4. At this time, the upper clamping plate 41 of the clamp 4 is in an open state. During the revolution of the clamp 4, it passes by the first camera 5, and the camera 5 takes a picture of the pull-up pants on the clamp 4 to detect whether its first side meets the standard. After the clamp 4 passes by the first camera 5, the interlocking component 6 makes the clamp 4 flip 180 degrees, and during the flipping process, the upper clamping plate 41 rotates to the bottom and closes, and the lower clamping plate 41 rotates to the upper part and opens, so that the pull-up pants are turned over. When the clamp 4 continues to rotate, it passes by the second camera 5, and the second camera 5 takes a picture of the second side of the pull-up pants to detect whether the second side of the pull-up pants meets the standard. After the detection on both sides, the unqualified pull-up pants are pushed out of the clamp 4 through the blanking component, and the qualified pull-up pants are pushed from the clamp 4 to the next process, so as to achieve the effect of detecting the product and removing the defective products.

[0031] The linkage assembly 6 includes a sleeve 61 rotatably arranged at the end of the support rod 3. The clamp 4 is fixedly connected to the sleeve 61. When the sleeve 61 rotates, it can drive the clamp 4 to rotate. The sleeve 61 is symmetrically provided with chutes 62 penetrating the side wall of the sleeve 61 up and down. The central axis of the chute 62 is parallel to the central axis of the sleeve 61. A slider 63 is slidably clamped in the chute 62. One end of the slider 63 facing the clamp 4 is fixedly provided with a connecting handle 64. One end of the connecting handle 64 is hinged with a connecting rod 65. The upper and lower connecting rods 65 are respectively hinged with the upper and lower clamping plates 41. A groove 31 is provided on the outer surface of the support rod 3. One side of the slider 63 facing the support rod 3 is fixedly provided with a convex block 66. The convex block 66 is slidably clamped in the groove 31. The sleeve 61 is connected with a driving assembly 7 for driving it to rotate. When the driving assembly 7 drives the sleeve 61 to rotate, the convex block 66 moves along the groove 31, and the slider 63 reciprocates in the chute 62.

[0032] The groove 31 includes a circular groove 311 and a special-shaped groove 312 provided on the surface of the support rod 3. The center of the circular groove 311 coincides with the center of the support rod 3. The special-shaped groove 312 is connected between the head and the tail of the circular groove 311. The special-shaped groove 312 is in a smooth V shape, and the vertex of the special-shaped groove 312 is located at the uppermost end of the support rod 3.

[0033] The driving assembly 7 includes a gear 71 coaxially arranged outside the sleeve 61 and an arc-shaped rack 72 fixedly arranged on the frame 1. When the gear 71 passes through the arc-shaped rack 72 during the revolution of the pillar 2, the gear 71 rotates 180°. The gear 71 is connected with a limiting assembly 8, and the limiting assembly 8 is used for limiting the gear 71 when the gear 71 disengages from the rack.

[0034] In actual work, the driving device drives the pillar 2 to rotate, the pillar 2 drives the support rod 3 to rotate, and the support rod 3 drives the clamp 4 to revolve together. During the rotation of the support rod 3, the sleeve 61 on the support rod 3 revolves together. During the revolution, the gear 71 on the sleeve 61 will engage with the arc-shaped rack 72 fixed on the frame 1 and cause the gear 71 to rotate. The gear 71 drives the sleeve 61 to rotate, so that the sleeve 61 can rotate 180°. During the rotation of the sleeve 61, on the one hand, it drives the clamp 4 to rotate 180° together, and on the other hand, it drives the slider 63 to rotate together. When the slider 63 rotates, the bottom convex block 66 will move in the groove 31. When the convex block 66 slides in the circular groove 311, the slider 63 only rotates with the sleeve 61 and does not move in the chute 62. When the convex block 66 moves from the circular groove 311 to the special-shaped groove 312, a force will be exerted on the convex block 66 by the special-shaped groove 312, so that the slider 63 will not only rotate with the sleeve 61, but also move linearly along the chute 62. When the slider 63 moves linearly along the chute 62, the slider 63 drives the connecting handle 64, the connecting handle 64 drives the connecting rod 65, and the connecting rod 65 drives the clamping plate 41 to move, so as to realize the opening and closing of the clamping plate 41;

[0035] Specifically, before the gear 71 meshes with the arc rack 72, the upper clamping plate 41 is in an open state. At this time, the slider 63 is at the farthest end from the fixture 4 in the chute 62. When the sleeve 61 rotates, the slider 63 gradually approaches the fixture 4, so that the upper clamping plate 41 gradually closes when it rotates to the lower side. When the upper clamping plate 41 rotates to the lower side and closes, the bump 66 connected to the slider 63 at the bottom slides from the circular groove 311 to the special-shaped groove 312. Under the action of the special-shaped groove 312, the slider 63 gradually moves away from the fixture 4. During the sliding process of the slider 63, the connecting handle 64 and the connecting rod 65 are driven to move. The connecting rod 65 drives the clamping plate 41 to slowly open, so that the lower clamping plate 41 gradually rotates to the upper side and gradually opens. During this process, the pull-up pants also achieve turning over.

[0036] The limiting component 8 includes a limiting hole 81 arranged on the side of the gear 71, a limiting rod 82 whose end is slidably inserted into the limiting hole 81, a limiting disk 83 connected to the limiting rod 82, and a fixing column 84 coaxially and fixedly connected to the limiting disk 83. There are two limiting holes 81. The connection line of the two limiting holes 81 passes through the center of the gear 71 and is symmetrically arranged at the upper and lower ends of the gear 71. The limiting rod 82 is slidably connected to the support rod 3 and extends into the inside of the support column 2. The fixing column 84 is coaxially arranged inside the support column 2 and fixedly connected to the frame 1. The limiting disk 83 is arranged at the upper end of the fixing column 84. The limiting disk 83 is circular. One side of the limiting disk 83 is a plane. A limiting baffle 85 is arranged on the edge of the limiting disk 83. A positioning rod 86 is vertically fixed at one end of the limiting rod 82 inside the support column 2. The positioning rod 86 is in sliding contact with the limiting baffle 85. The limiting rod 82 is connected with a reset component.

[0037] The reset component includes a spring 87 arranged on the outer side of the limiting rod 82 located in the support column 2. One end of the spring 87 is fixedly connected to the support column 2, and one end is fixedly connected to the limiting rod 82.

[0038] When the gear 71 is not engaged with the arc-shaped rack 72, the gear 71 needs to be limited to ensure the stability of the entire fixture 4 during the revolution. Otherwise, the fixture 4 is likely to flip when it is not supposed to, resulting in the instability of the device. During the operation of the limiting component 8, when the limiting rod 82 is inserted into the limiting hole 81 of the gear 71, the gear 71 will be limited and unable to rotate. When the gear 71 is about to engage with the arc-shaped rack 72, during the revolution of the support column 2, the limiting rod 82 is driven to revolve together. Since the limiting disk 83 is fixed, the positioning rod 86 at one end of the limiting rod 82 will rotate along the limiting baffle 85 on the edge of the limiting disk 83. When the positioning rod 86 moves from the arc surface of the limiting baffle 85 to the plane, the positioning rod 86 will drive the limiting rod 82 to slide into the support column 2. During the sliding process of the limiting rod 82, the other end will disengage from the limiting hole 81 of the gear 71, so that the gear 71 is released from the limit. At this time, the gear 71 meshes with the arc-shaped rack 72 and the gear 71 can rotate. After the gear 71 rotates a small angle, the positioning rod 86 rotates from the plane of the limiting baffle 85 to the arc surface again. At this time, under the action of the spring 87, one end of the limiting rod 82 will slide outward of the support column 2 and abut against the side surface of the gear 71. After the gear 71 rotates 180°, after the limiting hole 81 rotates 180°, the limiting rod 82 is aligned with the limiting hole 81 again. Under the action of the spring 87, the limiting rod 82 is inserted into the limiting hole 81 to limit the gear 71, and the gear 71 also disengages from the arc-shaped rack 72 and revolves together with the support column 2.

[0039] The blanking component includes an electric push rod 9 arranged inside the support rod 3. The working end of the electric push rod 9 is coaxially arranged with the support rod 3 and faces the fixture 4. During the operation, when the electric push rod 9 extends, the pull-up pants in the fixture 4 can be pushed out, so as to achieve the function of unloading.

Claims

1. Defect removal device for pull-up pants during production, Characterized in that: It includes a frame (1) and a support column (2) rotatably arranged on the frame (1). The support column (2) is arranged vertically. A driving device for driving the support column (2) to rotate is arranged on the frame (1). A number of support rods (3) are arranged on the side of the support column (2). The number of support rods (3) is evenly arranged circumferentially on the side of the support column (2). The axis of the support rod (3) is perpendicular to the axis of the support column (2). A clamp (4) for clamping the pull-up pants is rotatably arranged at the front end of each support rod (3). Two groups of cameras (5) are arranged at the top of the support column (2). The clamp (4) passes through the camera (5) during its revolution and is directly below the camera (5); The clamp (4) includes two upper and lower clamping plates (41). The clamp (4) is connected with a linkage component (6) for driving its rotation. During the process that the linkage component (6) drives the clamp (4) to rotate 180°, it simultaneously drives the upper clamping plate (41) to open and drives the lower clamping plate (41) to close after rotation. The clamp (4) is connected with a blanking component for pushing out the pull-up pants; The linkage component (6) includes a sleeve (61) rotatably arranged at the end of the support rod (3). The sleeve (61) is symmetrically provided with two upper and lower chute (62) penetrating the side wall of the sleeve (61). The central axis of the chute (62) is parallel to the central axis of the sleeve (61). A slider (63) is slidably clamped in the chute (62). One end of the slider (63) facing the clamp (4) is fixedly provided with a connecting handle (64). One end of the connecting handle (64) is hinged with a connecting rod (65). The upper and lower connecting rods (65) are respectively hinged with the upper and lower clamping plates (41). A groove (31) is arranged on the outer surface of the support rod (3). A convex block (66) is fixedly arranged on one side of the slider (63) facing the support rod (3). The convex block (66) is slidably clamped in the groove (31). The sleeve (61) is connected with a driving component (7) for driving its rotation. When the driving component (7) drives the sleeve (61) to rotate, the convex block (66) moves along the groove (31), and the slider (63) reciprocates in the chute (62); The groove (31) includes a circular groove (311) arranged on the surface of the support rod (3) and a special-shaped groove (312). The center of the circular groove (311) coincides with the center of the support rod (3). The special-shaped groove (312) is connected between the head and the tail of the circular groove (311). The special-shaped groove (312) is in a smooth V shape, and the vertex of the special-shaped groove (312) is located at the uppermost end of the support rod (3).

2. The defect removal device for pull-up pants during production according to claim 1, Characterized in that: The driving component (7) includes a gear (71) coaxially arranged outside the sleeve (61) and an arc-shaped rack (72) fixedly arranged on the frame (1). When the gear (71) passes through the arc-shaped rack (72) during the revolution of the support column (2), the gear (71) rotates 180°. The gear (71) is connected to a limit component (8), and the limit component (8) is used to limit the gear (71) when the gear (71) disengages from the rack.

3. The defective product removing device in the production of pull-up pants according to claim 2, characterized in that: The limit component (8) includes a limit hole (81) arranged on the side of the gear (71), a limit rod (82) with its end slidably inserted into the limit hole (81), a limit disc (83) connected to the limit rod (82), and a fixing column (84) coaxially and fixedly connected to the limit disc (83). There are two limit holes (81), and the connection line of the two limit holes (81) passes through the center of the gear (71) and is symmetrically arranged at the upper and lower ends of the gear (71). The limit rod (82) is slidably connected to the support rod (3) and extends into the interior of the support column (2). The fixing column (84) is coaxially arranged in the interior of the support column (2) and fixedly connected to the frame (1). The limit disc (83) is arranged at the upper end of the fixing column (84). The limit disc (83) is circular, one side of the limit disc (83) is a plane, a limit baffle (85) is arranged at the edge of the limit disc (83). A positioning rod (86) is vertically fixed at the end of the limit rod (82) located inside the support column (2), and the positioning rod (86) is in sliding contact with the limit baffle (85). The limit rod (82) is connected with a reset component.

4. The defective product removing device in the production of pull-up pants according to claim 3, characterized in that: The reset component includes a spring (87) arranged outside the support column (2) on the limit rod (82). One end of the spring (87) is fixedly connected to the support column (2), and one end is fixedly connected to the limit rod (82).

5. The defective product removing device in the production of pull-up pants according to claim 1, characterized in that: The blanking component includes an electric push rod (9) arranged inside the support rod (3). The working end of the electric push rod (9) is coaxially arranged with the support rod (3) and faces the fixture (4).

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