A thin profile product defect rejection system

Abstract

The utility model relates to thin product production technical field provides a kind of thin product defect rejection system, including first conveyor belt, first movable roller, second movable roller, first fixed roller, second fixed roller and drive mechanism, the first movable roller, second movable roller, first fixed roller and second fixed roller are mutually parallel and are set in rack and extension direction perpendicular to thin product conveying direction, the first conveyor belt is successively set in first movable roller, first fixed roller, second movable roller and second fixed roller, one end of the drive mechanism is connected with the first movable roller, the other end of the drive mechanism is connected with the second movable roller, the drive mechanism is used to drive the first movable roller and the second movable roller mutually along opposite direction movement, the rear end portion of the first movable roller along thin product conveying direction is equipped with rejection port.

Description

Technical Field

[0001] This utility model belongs to the field of thin product manufacturing technology, and in particular relates to a defect rejection system for thin products. Background Technology

[0002] In the manufacturing process of thin products, such as packaging bags, defect rejection is crucial. Existing packaging bag defect rejection devices typically operate as follows: a rejection port is set at a specific location on the conveyor belt or conveyor system. When an optical inspection device or other sensors detect a quality defect in a packaging bag, the control system triggers the rejection mechanism. As the defective packaging bag moves with the conveyor belt to the rejection port, the rejection mechanism quickly removes the defective packaging bag from the production line, causing it to fall into the waste collection area below, thus ensuring that only qualified products enter subsequent processes.

[0003] However, modern production lines typically need to flexibly switch between different specifications of packaging bags (such as bags of different sizes, shapes, or materials) according to order requirements. When the production line switches to producing smaller packaging bags, if the rejection opening is too wide, the packaging bags may shift, get stuck, or even fall during transport, affecting the normal production process. Conversely, when producing larger packaging bags, if the rejection opening is too narrow, defective packaging bags may not be able to be pushed out or may even get stuck at the rejection opening, which not only affects rejection efficiency but may also cause equipment failure or production line shutdown, thereby reducing overall production efficiency.

[0004] To solve the above-mentioned technical problems, this utility model designs a defect rejection system for thin products. Utility Model Content

[0005] This invention provides a defect rejection system for thin products, which aims to solve the problem that the rejection port of the rejection device cannot flexibly adapt to the rejection of packaging bags of various sizes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a thin product defect rejection system, comprising a first conveyor belt, a first movable roller, a second movable roller, a first fixed roller, a second fixed roller, and a drive mechanism. The first movable roller, the second movable roller, the first fixed roller, and the second fixed roller are arranged parallel to each other on a frame and their extension direction is perpendicular to the thin product conveying direction. The first conveyor belt is sequentially sleeved on the first movable roller, the first fixed roller, the second movable roller, and the second fixed roller. One end of the drive mechanism is connected to the first movable roller, and the other end of the drive mechanism is connected to the second movable roller. The drive mechanism is used to drive the first movable roller and the second movable roller to move in opposite directions. The rear end of the first movable roller along the thin product conveying direction is provided with a rejection port.

[0007] Based on the above technical solution, the height of the first movable roller is higher than the height of the first fixed roller, the height of the first fixed roller is higher than the height of the second movable roller, and the second fixed roller, the first fixed roller, the second movable roller and the first movable roller are arranged sequentially along the conveying direction of the thin product.

[0008] Furthermore, the driving mechanism includes a first driving cylinder, a second driving cylinder, a first driving member, a first driving mating member, and a second driving mating member. The first driving cylinder is connected to the first driving mating member, and the second driving cylinder is connected to the second driving mating member. The first driving member is rotatably connected to the frame. One side of the first driving mating member is movably connected to the top end of the first driving member, and the other side of the first driving mating member is rotatably connected to a first movable roller. One side of the second driving mating member is movably connected to the bottom end of the first driving member, and the other side of the second driving mating member is rotatably connected to the second movable roller.

[0009] Furthermore, the first driving component is a gear, and the first driving mating component and the second driving mating component are respectively provided with a first rack and a second rack. The first rack is mated with the top end of the gear, and the second rack is mated with the bottom end of the gear. When the first rack moves in one direction relative to the gear, the gear rotates and drives the second rack to move in the opposite direction.

[0010] Based on the above technical solution, the first driving mating component and the second driving mating component are respectively provided with a first slider and a second slider, and the frame is correspondingly provided with a first slide rail and a second slide rail. The first slider and the second slider can slide relative to the first slide rail and the second slide rail, so that the first movable roller and the second movable roller can move relative to the frame.

[0011] The thin product defect rejection system also includes a rejection mechanism, which includes a crossbeam and a pressing component. The crossbeam extends along a direction perpendicular to the thin product conveying direction, and the pressing component is disposed on the crossbeam and corresponding to the rejection port. The pressing component can move up and down relative to the crossbeam to reject thin products to the rejection port.

[0012] Furthermore, the pressing assembly includes a second driving member and a rejection plate. The second driving member is disposed on the crossbeam, and the rejection plate is connected to the second driving member. The second driving member is used to drive the rejection plate to move up and down relative to the rejection port.

[0013] Based on the above technical solution, the thin product defect rejection system also includes a pressing component. The frame is provided with a third fixed roller parallel to the first movable roller. One end of the pressing component is connected to the third fixed roller, and the other end of the pressing component extends toward the first movable roller to press the thin product onto the first conveyor belt.

[0014] Furthermore, multiple baffles are provided above the first conveyor belt, forming multiple conveying channels along the conveying direction of the thin product. The pressing assembly includes a rotating wheel and a second conveyor belt. The rotating wheel is located at the end of the baffle near the rejection port, and the second conveyor belt is sleeved on the third fixed roller and the rotating wheel.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0016] This invention features a first movable roller that can move in or against the direction of conveying thin products. During its movement, the rejection opening at the rear end of the first movable roller can widen or narrow to accommodate the rejection of thin products of different sizes and specifications. Furthermore, when rejection is not required, the rejection opening can be narrowed, making subsequent conveying of thin products smoother. During the movement of the first movable roller, a first fixed roller is positioned between the first and second movable rollers, providing support and fixation. The second movable roller, driven by a drive mechanism, moves in the opposite direction to the movement of the first movable roller. This ensures that the width of the rejection opening is adjusted while maintaining a relatively constant total length of the first conveyor belt, preventing stretching or slack in the first conveyor belt and guaranteeing the conveying and rejection of thin products before and after the movement of the first and second movable rollers. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a thin product defect removal system provided by this utility model;

[0019] Figure 2 This utility model provides Figure 1 An enlarged structural diagram of part A shown in the figure;

[0020] Figure 3 This is a schematic diagram of another thin product defect removal system provided by this utility model;

[0021] Figure 4 This is a structural schematic diagram of the thin product defect removal system provided by this utility model from another perspective;

[0022] Figure 5 This utility model provides Figure 4The diagram shows a cross-sectional structure along the AA direction.

[0023] In the diagram: 11. First conveyor belt; 12. First movable roller; 13. Second movable roller; 14. First fixed roller; 15. Second fixed roller; 16. Drive mechanism; 161. First drive cylinder; 162. Second drive cylinder; 163. First drive component; 164. First drive mating component; 1641. First rack; 1642. First slider; 165. Second drive mating component; 1651. Second rack; 1652. Second slider; 17. Frame ; 171, First slide rail; 172, Second slide rail; 173, Third fixed roller; 18, Rejection port; 19, Tensioning roller; 2, Rejection mechanism; 21, Crossbeam; 22, Pressing assembly; 221, Second driving component; 222, Rejection plate; 3, Pressing assembly; 31, Rotating wheel; 32, Second conveyor belt; 4, Second driving mechanism; 41, Drive motor; 42, First driving wheel; 43, First driven wheel; 44, Second driven wheel; 45, Third conveyor belt. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and examples:

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Combination Figure 1As shown, this embodiment of the present disclosure provides a defect rejection system for thin products, including a first conveyor belt 11, a first movable roller 12, a second movable roller 13, a first fixed roller 14, a second fixed roller 15, and a drive mechanism 16. The first movable roller 12, the second movable roller 13, the first fixed roller 14, and the second fixed roller 15 are arranged parallel to each other on a frame 17 and extend in a direction perpendicular to the conveying direction of the thin products. The first conveyor belt 11 is sequentially sleeved on the first movable roller 12, the first fixed roller 14, the second movable roller 13, and the second fixed roller 15. One end of the drive mechanism 16 is connected to the first movable roller 12, and the other end of the drive mechanism 16 is connected to the second movable roller 13. The drive mechanism 16 is used to drive the first movable roller 12 and the second movable roller 13 to move in opposite directions. The first movable roller 12 has a rejection port 18 at its rear end along the conveying direction of the thin products.

[0029] The thin product defect rejection system provided in this embodiment utilizes a first movable roller 12. This first movable roller 12 can move along or in the opposite direction of the thin product's conveying direction. During its movement, the rejection opening 18 between the rear end of the first movable roller 12 and the subsequent conveying device or the rear end and the subsequent outer casing can be widened or narrowed. This accommodates the rejection of thin products of different sizes and specifications. Furthermore, when rejection is not required, the rejection opening 18 can be narrowed, making subsequent conveying of the thin product smoother. During the movement of the first movable roller 12, a first fixed roller 14 is positioned between the first movable roller 12 and the second movable roller 13, providing support and fixation. The second movable roller 13, driven by the drive mechanism 16, moves in the opposite direction of the first movable roller 12's movement. This ensures that the width of the rejection opening 18 is adjusted while maintaining a relatively constant total length of the first conveyor belt 11, preventing stretching or slack in the first conveyor belt 11 and guaranteeing the conveying and rejection of thin products before and after the movement of the first movable roller 12 and the second movable roller 13.

[0030] It is understood that the first movable roller 12 and the second movable roller 13 move in opposite directions. They can move towards each other or move away from each other. When they move towards each other, the rejection opening 18 is widened, and when they move away from each other, the rejection opening 18 is narrowed.

[0031] Based on the above technical solutions, such as Figure 2 and Figure 5 As shown, the height of the first movable roller 12 is higher than the height of the first fixed roller 14, the height of the first fixed roller 14 is higher than the height of the second movable roller 13, and the second fixed roller 15, the first fixed roller 14, the second movable roller 13 and the first movable roller 12 are arranged sequentially along the thin product conveying direction.

[0032] Specifically, with the direction of conveying thin products as the forward direction and the opposite direction of conveying thin products as the backward direction, the first movable roller 12 is located in front of the first fixed roller 14 and the second movable roller 13, and the second movable roller 13 is located in front of the first fixed roller 14. When the first conveyor belt 11 is sleeved, it contacts the front side of the first movable roller 12, the rear side of the first fixed roller 14, the front side of the second movable roller 13, and the rear side of the second fixed roller 15 in sequence.

[0033] Furthermore, such as Figure 2 and Figure 5 As shown, the drive mechanism 16 includes a first drive cylinder 161, a second drive cylinder 162, a first drive member 163, a first drive mating member 164, and a second drive mating member 165. The first drive cylinder 161 is connected to the first drive mating member 164, and the second drive cylinder 162 is connected to the second drive mating member 165. The first drive member 163 is rotatably connected to the frame 17. One side of the first drive mating member 164 is movably connected to the top of the first drive member 163, and the other side of the first drive mating member 164 is rotatably connected to the first movable roller 12. One side of the second drive mating member 165 is movably connected to the bottom of the first drive member 163, and the other side of the second drive mating member 165 is rotatably connected to the second movable roller 13.

[0034] Specifically, the second drive cylinder 162 drives the second drive mating component 165 to move along the thin product conveying direction. When the second drive mating component 165 moves, it drives the second movable roller 13 to move along the thin product conveying direction, and at the same time drives the first drive component 163 to rotate relative to the frame 17. When rotating, it drives the first drive mating component 164 to move in the opposite direction of the second drive mating component 165. At this time, the first drive cylinder 161 also drives the first drive mating component 164 to move in the opposite direction, making the movement of the first drive mating component 164 more effortless. The movement of the first drive mating component 164 drives the first movable roller 12 to move in the opposite direction of the second movable roller 13, which is the opposite direction of the thin product conveying direction. This makes the rejection opening 18 at the rear end of the first movable roller 12 wider. The process of adjusting the rejection opening 18 to narrow is similar to the process of widening the rejection opening 18 described above, and will not be repeated here. During the movement of the first movable roller 12 and the second movable roller 13, the first movable roller 12 releases the first conveyor belt 11 when the second movable roller 13 is tightening the first conveyor belt 11, which can ensure the real-time tightening of the conveyor belt.

[0035] Furthermore, such as Figure 2As shown, the first driving component 163 is a gear, and the first driving mating component 164 and the second driving mating component 165 are respectively provided with a first rack 1641 and a second rack 1651. The first rack 1641 is mated with the top end of the gear, and the second rack 1651 is mated with the bottom end of the gear. When the first rack 1641 moves in one direction relative to the gear, the gear rotates and drives the second rack 1651 to move in the opposite direction.

[0036] Specifically, the second drive cylinder 162 drives the second drive mating part 165 to move along the thin product conveying direction, causing the second rack 1651 to move relative to the gear, thereby driving the gear to rotate. When rotating, the first rack 1641 moves relative to the gear. At this time, the first drive cylinder 161 also drives the first drive mating part 164 to move in the opposite direction of the movement of the second drive mating part 165, thereby driving the first movable roller 12 to move in the opposite direction of the second movable roller 13, which is the opposite direction of the thin product conveying direction. This makes the rejection opening 18 at the rear end of the first movable roller 12 wider, thus completing the adjustment of the width of the rejection opening 18.

[0037] Based on the above technical solutions, such as Figure 2 As shown, the first drive engagement member 164 and the second drive engagement member 165 are respectively provided with a first slider 1642 and a second slider 1652, and the frame 17 is correspondingly provided with a first slide rail 171 and a second slide rail 172. The first slider 1642 and the second slider 1652 can slide relative to the first slide rail 171 and the second slide rail 172, so that the first movable roller 12 and the second movable roller 13 can move relative to the frame 17.

[0038] When the first drive engagement component 164 and the second drive engagement component 165 drive the first movable roller 12 and the second movable roller 13 to move in opposite directions, the first drive engagement component 164 and the second drive engagement component 165 need to move relative to the frame 17. In order to ensure the smoothness of the movement process, a first slider 1642 and a second slider 1652 are respectively provided on the first drive engagement component 164 and the second drive engagement component 165. When the first drive engagement component 164 and the second drive engagement component 165 move relative to the frame 17, the first slider 1642 slides relative to the first slide rail 171, and the second slider 1652 slides relative to the second slide rail 172 to ensure smooth and stable movement.

[0039] like Figure 3 and Figure 5As shown, the thin product defect rejection system also includes a rejection mechanism 2, which includes a crossbeam 21 and a pressing component 22. The crossbeam 21 extends along a direction perpendicular to the thin product conveying direction. The pressing component 22 is disposed on the crossbeam 21 and is disposed corresponding to the rejection port 18. The pressing component 22 can move up and down relative to the crossbeam 21 to reject thin products to the rejection port 18.

[0040] Furthermore, such as Figure 5 As shown, the pressing component 22 includes a second driving member 221 and a rejection plate 222. The second driving member 221 is disposed on the crossbeam 21, and the rejection plate 222 is connected to the second driving member 221. The second driving member 221 is used to drive the rejection plate 222 to move up and down relative to the rejection port 18.

[0041] When a thin product has a defect and needs to be rejected, the defective product is conveyed to the rejection port 18, and the second driving component 221 drives the rejection plate 222 to move downward, pressing down the defective product and rejecting it through the rejection port 18.

[0042] Based on the above technical solutions, such as Figure 3 and Figure 5 As shown, the thin product defect rejection system also includes a pressing component 3. The frame 17 is provided with a third fixed roller 173 parallel to the first movable roller 12. One end of the pressing component 3 is connected to the third fixed roller 173, and the other end of the pressing component 3 extends toward the first movable roller 12 to press the thin product onto the first conveyor belt 11.

[0043] Furthermore, such as Figure 4 and Figure 5 As shown, multiple baffles are provided above the first conveyor belt 11, and multiple conveying channels are formed between the multiple baffles along the conveying direction of the thin product. The pressing assembly 3 includes a rotating wheel 31 and a second conveyor belt 32. The rotating wheel 31 is located at the end of the baffle near the rejection port 18, and the second conveyor belt 32 is sleeved on the third fixed roller 173 and the rotating wheel 31.

[0044] Specifically, the rotating wheel 31 of the pressing component 3 is located near the first movable roller 12, that is, near the rejection port 18. When the thin product to be rejected is conveyed to the position near the rejection port 18, the first movable roller 12 retracts, the rejection mechanism 2 moves downward, and presses down on the thin product. The front end of the thin product is pressed down, and the rear end is pressed onto the first conveyor belt 11 by the rotating wheel 31, so as to prevent the rear end of the thin product from lifting up during the rejection process and to prevent the position of the thin product from shifting. The conveying speed of the second conveyor belt 32 is the same as the conveying speed of the first conveyor belt 11. The first conveyor belt 11 and the second conveyor belt work together to press and drive the thin product forward for transmission and rejection.

[0045] like Figure 3 As shown, the thin product defect rejection system also includes a second drive mechanism 416. The second drive mechanism 416 includes a drive motor 41, a first drive wheel 42, a first driven wheel 43, a second driven wheel 44, and a third conveyor belt 45. The third conveyor belt 45 is sleeved on the first drive wheel 42, the first driven wheel 43, and the second driven wheel 44. The first drive wheel 42 is connected to the drive motor 41. The first driven wheel 43 is located at the end of the third fixed roller 173, and the second driven wheel 44 is located at the end of the first fixed roller 14. The drive motor 41 drives the first drive wheel 42 to rotate, which in turn drives the first driven wheel 43 and the second driven wheel 44 to rotate, thereby driving the third fixed roller 173 and the first fixed roller 14 to rotate. The rotation of the third fixed roller 173 drives the second conveyor belt 32 to move, thereby driving the rotating wheel 31 to rotate, realizing the cooperation between the pressing assembly 3 and the first conveyor belt 11.

[0046] like Figure 1 and Figure 5 As shown, the thin product defect rejection system also includes a tension roller 19, which is located between the second movable roller 13 and the second fixed roller 15. The first conveyor belt 11 is sequentially sleeved on the first movable roller 12, the first fixed roller 14, the second movable roller 13, the tension roller 19, and the second fixed roller 15. The top of the first conveyor belt 11 is in contact with the top of the tension roller 19. The position of the tension roller 19 can be adjusted up and down relative to the frame. When the distance between the second movable roller 13 and the second fixed roller 15 is long, the first conveyor belt 11 may become slack to a certain extent. The height of the tension roller 19 can be adjusted up or down according to the degree of slack of the first conveyor belt 11 to tighten the first conveyor belt 11 and avoid affecting the operation of the thin product defect rejection system.

[0047] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A thin product defect rejection system, characterized by, The device includes a first conveyor belt, a first movable roller, a second movable roller, a first fixed roller, a second fixed roller, and a drive mechanism. The first movable roller, the second movable roller, the first fixed roller, and the second fixed roller are arranged parallel to each other on the frame and their extension direction is perpendicular to the conveying direction of the thin product. The first conveyor belt is sequentially sleeved on the first movable roller, the first fixed roller, the second movable roller, and the second fixed roller. One end of the drive mechanism is connected to the first movable roller, and the other end of the drive mechanism is connected to the second movable roller. The drive mechanism is used to drive the first movable roller and the second movable roller to move in opposite directions. The rear end of the first movable roller along the conveying direction of the thin product is provided with a rejection port.

2. The thin-film product defect rejection system according to claim 1, characterized in that, The height of the first movable roller is higher than the height of the first fixed roller, and the height of the first fixed roller is higher than the height of the second movable roller. The second fixed roller, the first fixed roller, the second movable roller, and the first movable roller are arranged sequentially along the conveying direction of the thin product.

3. The thin product defect rejection system according to claim 1, characterized in that, The driving mechanism includes a first driving cylinder, a second driving cylinder, a first driving component, a first driving mating component, and a second driving mating component. The first driving cylinder is connected to the first driving mating component, and the second driving cylinder is connected to the second driving mating component. The first driving component is rotatably connected to the frame. One side of the first driving mating component is movably connected to the top of the first driving component, and the other side of the first driving mating component is rotatably connected to a first movable roller. One side of the second driving mating component is movably connected to the bottom of the first driving component, and the other side of the second driving mating component is rotatably connected to the second movable roller.

4. The thin product defect rejection system according to claim 3, characterized in that, The first driving component is a gear. The first driving component and the second driving component are respectively provided with a first rack and a second rack. The first rack is engaged with the top end of the gear, and the second rack is engaged with the bottom end of the gear. When the first rack moves in one direction relative to the gear, the gear rotates and drives the second rack to move in the opposite direction.

5. The thin product defect rejection system according to claim 4, characterized in that, The first driving engagement component and the second driving engagement component are respectively provided with a first slider and a second slider, and the frame is correspondingly provided with a first slide rail and a second slide rail. The first slider and the second slider are respectively able to slide relative to the first slide rail and the second slide rail, so that the first movable roller and the second movable roller move relative to the frame.

6. The thin product defect rejection system according to any one of claims 1 to 5, characterized in that, It also includes a rejection mechanism, which includes a crossbeam and a pressing component. The crossbeam extends along a direction perpendicular to the conveying direction of the thin product, and the pressing component is disposed on the crossbeam and corresponding to the rejection port. The pressing component can move up and down relative to the crossbeam to reject the thin product to the rejection port.

7. The thin product defect rejection system according to claim 6, characterized in that, The pressing assembly includes a second driving member and a rejection plate. The second driving member is disposed on the crossbeam, and the rejection plate is connected to the second driving member. The second driving member is used to drive the rejection plate to move up and down relative to the rejection port.

8. The thin product defect rejection system according to any one of claims 1 to 5, characterized in that, It also includes a pressing assembly, wherein a third fixed roller is provided in the frame parallel to the first movable roller, one end of the pressing assembly is connected to the third fixed roller, and the other end of the pressing assembly extends toward the first movable roller, for pressing the thin product onto the first conveyor belt.

9. The thin product defect rejection system according to claim 8, characterized in that, The first conveyor belt is provided with multiple baffles above it, and multiple conveying channels are formed between the baffles along the conveying direction of the thin product. The pressing assembly includes a rotating wheel and a second conveyor belt. The rotating wheel is located at the end of the baffle near the rejection port. The second conveyor belt is sleeved on the third fixed roller and the rotating wheel.

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