A blanking and screening mechanism suitable for different specifications of products

Abstract

This utility model relates to the technical field of material feeding and screening mechanisms, specifically to a material feeding and screening mechanism adaptable to products of different specifications. It includes: a conveying assembly comprising a first conveyor line and a second conveyor line arranged in parallel, and an adjustment module for driving the second conveyor line to move horizontally closer to or further away from the first conveyor line; the first conveyor line includes a first conveyor wheel module, and the second conveyor line has a second conveyor wheel module positioned corresponding to the first conveyor wheel module; the first conveyor wheel module includes a plurality of first conveyor wheels arranged in a row on a first mounting vertical plate, and the second conveyor wheel module includes a plurality of second conveyor wheels arranged in a row on a second mounting vertical plate; this utility model is used to convey qualified products to the rear, while unqualified products are lifted and screened from the conveying assembly by a lifting component; and the second conveyor line can move horizontally closer to or further away from the first conveyor line, thus adapting to products of different specifications and possessing strong practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of material feeding and screening mechanisms, and in particular to a material feeding and screening mechanism that is adapted to products of different specifications. Background Technology

[0002] As a core component of the vehicle's thermal management system, the dimensional accuracy of automotive heat sinks directly affects heat dissipation efficiency and assembly reliability. During production, all critical parameters such as position, aperture, flatness, thickness, and depth must be thoroughly inspected to eliminate potential problems such as heat exchange failure or poor sealing caused by dimensional deviations. After inspection, defective heat sinks must be screened and removed, while good ones continue to flow downstream. Since different batches of heat sinks have different specifications, a material screening mechanism adaptable to different product specifications is urgently needed. Utility Model Content

[0003] The purpose of this utility model is to provide a feeding and screening mechanism that can be adapted to products of different specifications, so as to solve the problem that there is no feeding and screening mechanism designed for heat sinks of different specifications in the prior art.

[0004] The technical solution of this utility model is: a feeding and screening mechanism adapted to products of different specifications, comprising:

[0005] A conveying assembly includes a first conveyor line and a second conveyor line arranged in parallel, and an adjustment module for driving the second conveyor line to move closer to or away from the first conveyor line in a horizontal direction; the first conveyor line includes a first conveyor wheel module, and the second conveyor line has a second conveyor wheel module arranged at a position corresponding to the first conveyor wheel module; the first conveyor wheel module includes a plurality of first conveyor wheels arranged in a row on a first mounting vertical plate, and the second conveyor wheel module includes a plurality of second conveyor wheels arranged in a row on a second mounting vertical plate;

[0006] The lifting assembly is used to lift defective products on the conveying assembly. It includes a first material rack passing through a first mounting vertical plate and a plurality of first conveying wheels, a second material rack passing through a second mounting vertical plate and a plurality of second conveying wheels, and a lifting drive module for driving the first material rack and the second material rack to lift as a whole.

[0007] Preferably, the first conveyor line is mounted on the first mounting plate, and the second conveyor line is mounted on the second mounting plate; the first mounting plate is fixed on the frame, and a third mounting plate is fixedly mounted on the frame, with the second mounting plate located between the first mounting plate and the third mounting plate;

[0008] The adjustment module includes a first ball screw module, the screw of the first ball screw module is rotatably mounted on a first mounting plate and a third mounting plate, and the nut of the first ball screw module is fixed on the second mounting plate.

[0009] A handwheel is installed at one end of the lead screw of the first ball screw module.

[0010] Preferably, the first material rack is fixed on the first mounting plate, and the second material rack is mounted on the first mounting plate via a linear guide rail. The lifting drive module includes a second ball screw module and a first drive component that drives the nut of the second ball screw module to rotate. The first mounting plate is fixedly mounted on the top of the screw of the second ball screw module.

[0011] Preferably, there are two first ball screw modules, and the pair of screws of a pair of first ball screw modules are connected by a synchronous belt and a synchronous pulley.

[0012] Preferably, the first conveyor line includes a first belt conveyor module disposed in front of the first conveyor wheel module and a second belt conveyor module disposed behind the first conveyor wheel module.

[0013] The second conveyor line includes a third belt conveyor module positioned corresponding to the first belt conveyor module and a fourth belt conveyor module positioned corresponding to the second belt conveyor module;

[0014] The first belt conveyor module and the third belt conveyor module perform the first stage of product conveying of the conveying components. The first conveyor wheel module and the second conveyor wheel module perform the second stage of product conveying of the conveying components, which is a continuous first stage of product conveying. The second belt conveyor module and the fourth belt conveyor module perform the third stage of product conveying of the conveying components, which is a continuous second stage of product conveying.

[0015] Preferably, the first conveyor line and the second conveyor line share a second driving element for driving;

[0016] The second driving component is a motor, and the output shaft of the motor is connected to a main drive shaft via a synchronous belt and a synchronous belt pulley. The main drive shaft is rotatably mounted on the first mounting plate and the third mounting plate.

[0017] The main drive shaft drives multiple first transmission wheels and multiple second transmission wheels to rotate via a timing belt and timing pulley.

[0018] Preferably, the radial cross-section of the main drive shaft is polygonal, and a first synchronous pulley is fitted on the main drive shaft with a clearance fit. The first synchronous pulley is provided with a polygonal shaft hole that matches the polygonal shape for the main drive shaft to pass through.

[0019] The first synchronous pulley includes a cylindrical mounting part and a gear part arranged along its axial direction. The first synchronous pulley is mounted on the second mounting plate by fitting a bearing onto the cylindrical mounting part.

[0020] Preferably, the first belt conveyor module includes a first driving pulley, a first driven pulley, and a first belt sleeved on the first driving pulley and the first driven pulley. The first conveyor pulley closest to the first belt conveyor module among the plurality of first conveyor pulleys is the first front drive pulley. The first driving pulley is connected to the synchronous pulley that drives the first front drive pulley via a synchronous belt and a synchronous pulley.

[0021] The second belt conveyor module includes a second driving pulley, a second driven pulley, and a second belt sleeved on the second driving pulley and the second driven pulley. The first conveyor pulley closest to the second belt conveyor module among the plurality of first conveyor pulleys is the first rear drive pulley. The second driving pulley is connected to the synchronous pulley that drives the first rear drive pulley via a synchronous belt and a synchronous pulley.

[0022] The third belt conveyor module includes a third driving pulley, a third driven pulley, and a third belt sleeved on the third driving pulley and the third driven pulley. The second conveyor pulley closest to the third belt conveyor module among the multiple second conveyor pulleys is the second front drive pulley. The third driving pulley is connected to the synchronous pulley that drives the second front drive pulley via a synchronous belt and a synchronous pulley.

[0023] The fourth belt conveyor module includes a fourth driving pulley, a fourth driven pulley, and a fourth belt sleeved on the fourth driving pulley and the fourth driven pulley. The second conveyor pulley closest to the fourth belt conveyor module among the multiple second conveyor pulleys is the second rear drive pulley. The fourth driving pulley is connected to the synchronous pulley that drives the second rear drive pulley via a synchronous belt and a synchronous pulley.

[0024] Preferably, the first material rack includes multiple first material rods arranged in parallel in a vertical direction and first support bars arranged at equal intervals along the axial direction of the multiple first material rods. The first support bars can be raised and lowered between two adjacent first conveyor wheels.

[0025] The second material rack includes multiple second material rods arranged in parallel in a vertical direction and second support bars arranged at equal intervals along the axial direction of the multiple second material rods. The second support bars can be raised and lowered between two adjacent second conveyor wheels.

[0026] Multiple first bearing strips and multiple second bearing strips in each layer form a horizontal bearing surface.

[0027] Preferably, the lifting assembly further includes a first guide module and a second guide module for guiding the lifting of the first and second material racks;

[0028] The first guide module includes a first guide rod fixed on a first material rack and a first linear bearing fixed on a first mounting plate. The first guide rod passes through the first linear bearing, and the first linear bearing is fixed on the first mounting plate.

[0029] The second guide module includes a second guide rod fixed on the second material rack and a second linear bearing fixed on the second mounting plate. The second guide rod passes through the second linear bearing, and the second linear bearing is fixed on the second mounting plate.

[0030] Compared with the prior art, the advantages of this utility model are:

[0031] This utility model discloses a material screening mechanism adapted to different specifications of products, including a conveying component and a lifting component, which are used to convey qualified products to the rear and unqualified products are lifted and screened out by the lifting component; and the second conveying line can be moved closer to or further away from the first conveying line in the horizontal direction, thereby adapting to different specifications of products and having strong practicality. Attached Figure Description

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0033] Figure 1 This is a schematic diagram of the structure of a feeding and screening mechanism adapted to products of different specifications according to the present invention;

[0034] Figure 2 This is a structural schematic diagram from another perspective of the feeding and screening mechanism for products of different specifications described in this utility model.

[0035] Figure 3 This is an enlarged structural schematic diagram of the feeding and screening mechanism adapted to different specifications of products according to the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of the conveying assembly described in this utility model;

[0037] Figure 5 This is a structural schematic diagram of the conveying assembly described in this utility model from another perspective;

[0038] Figure 6 This is a schematic diagram of the lifting assembly described in this utility model;

[0039] Figure 7 This is a cross-sectional view of the first synchronous pulley and the main drive shaft of this utility model mounted on the second mounting vertical plate.

[0040] Figure 8 This is a schematic diagram of the structure of the first synchronous belt pulley of this utility model.

[0041] The components include: 1. First mounting plate; 2. Second mounting plate; 3. Third mounting plate; 4. First transmission wheel; 5. Second transmission wheel; 6. First ball screw module; 7. Handwheel; 8. Third guide rod; 9. Oil-free bushing; 10. Main drive shaft; 11. First synchronous belt pulley; 12. Regular hexagonal shaft hole; 13. Columnar mounting part; 14. Gear part; 15. Bearing; 16. Second motor; 17. First driving wheel; 18. First driven wheel; 19. First belt; 20. First front drive wheel; 21. Second driving wheel; 22. Second driven wheel; 23. Second belt; 24. First rear drive wheel; 25. Third driving wheel; 26. 27. Third driven wheel, 28. Third belt, 29. Second front drive wheel, 30. Fourth drive wheel, 31. Fourth belt, 32. Second rear drive wheel, 33. First material rack, 34. Second material rack, 35. First mounting plate, 36. Linear guide rail, 37. Second ball screw module, 38. First motor, 39. First material rod, 40. First support bar, 41. Second material rod, 42. Second support bar, 43. First guide rod, 44. First linear bearing, 45. Second guide rod, 46. Second linear bearing, 47. Fourth guide rod, 48. Third linear bearing, 49. Heat sink, 50. Second mounting plate. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to specific embodiments:

[0043] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 the 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 the utility model.

[0044] like Figures 1-3As shown, a material sorting mechanism adaptable to products of different specifications includes a conveying component and a lifting component. It conveys qualified products to the rear, while unqualified products are lifted and sorted out by the lifting component. In this embodiment, the product is a heat sink 49. The conveying component includes a first conveyor line and a second conveyor line arranged in parallel, and an adjustment module that drives the second conveyor line to move horizontally closer to or further away from the first conveyor line. The first conveyor line includes a first conveyor wheel module, and the second conveyor line has a second conveyor wheel module positioned corresponding to the first conveyor wheel module. The first conveyor wheel module includes a plurality of first conveyor wheels 4 arranged in a row on a first mounting vertical plate 1, and the second conveyor wheel module includes a plurality of second conveyor wheels 5 arranged in a row on a second mounting vertical plate 2.

[0045] The first conveyor line is mounted on the first mounting plate 1, and the second conveyor line is mounted on the second mounting plate 2. The first mounting plate 1 is fixed to the frame, and a third mounting plate 3 is fixedly mounted on the frame, with the second mounting plate 2 located between the first mounting plate 1 and the third mounting plate 3. The adjustment module includes a first ball screw module 6, the screw of which is rotatably mounted on the first mounting plate 1 and the third mounting plate 3, and the nut of the first ball screw module 6 is fixed on the second mounting plate 2. A handwheel 7 is mounted on one end of the screw of the first ball screw module 6. In this embodiment, the conveying assembly also includes a pair of third guide modules for guiding the second conveyor line to move closer to or away from the first conveyor line in a horizontal direction. Each third guide module includes a third guide rod 8 fixed on the first mounting plate 1 and the third mounting plate 3, and an oil-free bushing 9 sleeved on the third guide rod 8. The oil-free bushing 9 is fixed on the second mounting plate 2.

[0046] There are two first ball screw modules 6, and the pair of screws in a pair of first ball screw modules 6 are connected by a synchronous belt and a synchronous pulley. For example... Figure 7 As shown, the radial cross-section of the main drive shaft 10 is polygonal. A first synchronous pulley 11 is fitted onto the main drive shaft 10 with a clearance fit. The first synchronous pulley 11 has a polygonal shaft hole that matches the polygonal shape, through which the main drive shaft 10 passes. Figure 7 , Figure 8As shown, in this embodiment, the radial section of the main drive shaft 10 is a regular hexagon, and the shaft hole of the first synchronous pulley 11 is a regular hexagonal shaft hole 12; the first synchronous pulley 11 includes a cylindrical mounting part 13 and a gear part 14 arranged along its axial direction, and the first synchronous pulley 11 is mounted on the second mounting vertical plate 2 by fitting a bearing 15 onto the cylindrical mounting part 13. The bearing 15 is fixed on the second mounting plate 2, and the cylindrical mounting part 13 of the first synchronous pulley 11 is fixed on the inner ring of the bearing 15. Since the main drive shaft 10 is hexagonal, and the shaft hole of the first synchronous pulley 11 is a hexagonal shaft hole 12 that fits into the main drive shaft 10, the main drive shaft 10 and the first synchronous pulley 11 are relatively stationary in the direction of rotation of the main drive shaft 10. Therefore, when the main drive shaft 10 rotates, the first synchronous pulley 11 rotates with the main drive shaft 10. Since the first synchronous pulley 11 is installed on the main drive shaft 10 with clearance, the first synchronous pulley 11 can reciprocate along the axial direction of the main drive shaft 10. When the second conveyor line moves closer to or away from the first conveyor line in the horizontal direction, that is, when the second mounting plate 2 moves closer to or away from the first conveyor line in the horizontal direction, the first synchronous pulley 11 can reciprocate with the second mounting plate 2 relative to the axial direction of the main drive shaft 10.

[0047] In this embodiment, the working principle of the adjustment module is as follows: When changing heat exchange plates 49 of different specifications, it is necessary to adjust the distance between the first and second conveyor lines. The handwheel 7 is turned clockwise or counterclockwise, thereby driving the screw of the first ball screw module 6, which is fixedly connected to the handwheel 7, to rotate. Simultaneously, the rotation of the screw of the first ball screw module 6, which is also fixedly connected to the handwheel 7, drives the screw of the other first ball screw module 6 to rotate via a synchronous belt and synchronous pulley. Thus, the rotation of the screws of the pair of first ball screw modules 6 drives the nut sleeved on them to move, thereby driving the second mounting plate 2, which is fixed on the nuts of the pair of first ball screw modules 6, to reciprocate along the direction closer to or further away from the first conveyor line. This, in turn, drives the second conveyor line mounted on the second mounting plate 2 to move horizontally closer to or further away from the first conveyor line. While the second mounting plate 2 moves, the first synchronous pulley 11 fixed on the second mounting plate 2 moves axially relative to the main drive shaft 10, and the oil-free bushing 9 fixed on the second mounting plate 2 moves axially relative to the third guide rod 8. This allows for the adjustment of the distance between the first and second conveyor lines, enabling the material feeding and screening mechanism in this embodiment to be adapted to products of different specifications, thus enhancing its practicality.

[0048] like Figure 4 , Figure 5As shown, the first conveyor line includes a first belt conveyor module located in front of the first conveyor wheel module and a second belt conveyor module located behind the first conveyor wheel module; the second conveyor line includes a third belt conveyor module located at a position corresponding to the first belt conveyor module and a fourth belt conveyor module located at a position corresponding to the second belt conveyor module; the first belt conveyor module and the third belt conveyor module perform the first stage of product conveying of the conveyor components; the first conveyor wheel module and the second conveyor wheel module perform the second stage of product conveying of the conveyor components, which is the second stage of product conveying of the conveyor components; and the second belt conveyor module and the fourth belt conveyor module perform the third stage of product conveying of the conveyor components, which is the third stage of product conveying of the conveyor components, which is the second stage of product conveying of the conveyor components.

[0049] The first and second conveyor lines share a second driving component; the second driving component is a second motor 16, and the output shaft of the second motor 16 is connected to the main drive shaft 10 through a synchronous belt and a synchronous pulley. The main drive shaft 10 is rotatably mounted on the first mounting plate 1 and the third mounting plate 3; the main drive shaft 10 drives multiple first conveyor wheels 4 and multiple second conveyor wheels 5 to rotate through the synchronous belt and the synchronous pulley. The first belt conveyor module includes a first driving pulley 17, a first driven pulley 18, and a first belt 19 sleeved on the first driving pulley 17 and the first driven pulley 18. The first transmission pulley 4 closest to the first belt conveyor module among the multiple first transmission pulleys 4 is the first front transmission pulley 20. The first driving pulley 17 is connected to the synchronous pulley driving the first front transmission pulley 20 via a synchronous belt and a synchronous pulley. The second belt conveyor module includes a second driving pulley 21, a second driven pulley 22, and a second belt 23 sleeved on the second driving pulley 21 and the second driven pulley 22. The first transmission pulley 4 closest to the second belt conveyor module among the multiple first transmission pulleys 4 is the first rear transmission pulley 24. The second driving pulley 21 is connected to the synchronous pulley driving the first rear transmission pulley 24 via a synchronous belt and a synchronous pulley. The third belt conveyor module includes a third driving pulley 25, a third driven pulley 26, and a third belt 27 fitted on the third driving pulley 25 and the third driven pulley 26. The second transmission pulley 5 closest to the third belt conveyor module among the multiple second transmission pulleys 5 is the second front transmission pulley 28. The third driving pulley 25 is connected to the synchronous pulley driving the second front transmission pulley 28 via a synchronous belt and a synchronous pulley. The fourth belt conveyor module includes a fourth driving pulley 29, a fourth driven pulley 30, and a fourth belt 31 fitted on the fourth driving pulley 29 and the fourth driven pulley 30. The second transmission pulley 5 closest to the fourth belt conveyor module among the multiple second transmission pulleys 5 is the second rear transmission pulley 32. The fourth driving pulley 29 is connected to the synchronous pulley driving the second rear transmission pulley 32 via a synchronous belt and a synchronous pulley.

[0050] In this embodiment, the output shaft of the second motor 16 rotates to drive the main drive shaft 10 to rotate. The rotation of the main drive shaft 10 then drives multiple first transmission wheels 4 and multiple second transmission wheels 5 to rotate via a synchronous belt and synchronous pulley. The rotation of the first front transmission wheel 20 drives the first drive wheel 17 to rotate, and the rotation of the first drive wheel 17 drives the first belt 19 to rotate. The rotation of the second front transmission wheel 28 drives the third drive wheel 25 to rotate, and the rotation of the third drive wheel 25 drives the third belt 27 to rotate. The rotation of the first rear transmission wheel 24 drives the second drive wheel 21 to rotate, and the rotation of the second drive wheel 21 drives the second belt 23 to rotate. The rotation of the second rear transmission wheel 32 drives the fourth drive wheel 29 to rotate, and the rotation of the fourth drive wheel 29 drives the fourth belt 31 to rotate. This enables the second motor 16 to drive the first and second conveyor lines to transport products in parallel, reducing motor configuration costs while ensuring conveying synchronization.

[0051] like Figure 6 As shown, the lifting assembly is used to lift defective products on the conveying assembly. It includes a first material rack 33 passing through the first mounting vertical plate 1 and multiple first conveying wheels 4, a second material rack 34 passing through the second mounting vertical plate 2 and multiple second conveying wheels 5, and a lifting drive module for driving the first material rack 33 and the second material rack 34 to lift as a whole.

[0052] The first material rack 33 is fixed on the first mounting horizontal plate 35, and the second material rack 34 is mounted on the first mounting horizontal plate 35 via a linear guide rail 36. Specifically, the second material rack 34 is fixed on the slider of the linear guide rail 36, and the guide rail of the linear guide rail 36 is fixed on the first mounting horizontal plate 35. When changing heat exchange plates 49 of different specifications, it is necessary to adjust the distance between the first and second conveyor lines. Since the second linear bearing 46 is fixed on the second mounting vertical plate 2, the movement of the second mounting vertical plate 2 will synchronously drive the second material rack 34 to move. The lifting drive module includes a second ball screw module 37 and a first drive component that drives the nut of the second ball screw module 37 to rotate. The first mounting horizontal plate 35 is fixedly mounted on the top of the screw of the second ball screw module 37. In this embodiment, the first drive component is a first motor 38. The conveyor shaft of the first motor 38 is connected to the nut of the second ball screw module 37 via a synchronous belt and a synchronous pulley. The first motor 38 is mounted on the second mounting horizontal plate 50. The first material rack 33 includes multiple first material rods 39 arranged in parallel vertical direction and first support bars 40 arranged at equal intervals along the axial direction of the multiple first material rods 39. The first support bars 40 can be raised and lowered between two adjacent first conveyor wheels 4. The second material rack 34 includes multiple second material rods 41 arranged in parallel vertical direction and second support bars 42 arranged at equal intervals along the axial direction of the multiple second material rods 41. The second support bars 42 can be raised and lowered between two adjacent second conveyor wheels 5. Each layer of multiple first support bars 40 and multiple second support bars 42 forms a horizontal support surface.

[0053] The lifting assembly also includes a first guide module and a second guide module for guiding the lifting and lowering of the first material rack 33 and the second material rack 34. The first guide module includes a first guide rod 43 fixed on the first material rack 33 and a first linear bearing 44 fixed on the first mounting vertical plate 1. The first guide rod 43 passes through the first linear bearing 44, and the first linear bearing 44 is fixed on the first mounting vertical plate 1. The second guide module includes a second guide rod 45 fixed on the second material rack 34 and a second linear bearing 46 fixed on the second mounting vertical plate 2. The second guide rod 45 passes through the second linear bearing 46, and the second linear bearing 46 is fixed on the second mounting vertical plate 2. In this embodiment, the lifting assembly also includes a pair of fourth guide modules for guiding the lifting and lowering of the screw of the second ball screw module 37. Each fourth guide module includes a fourth guide rod 47 fixedly mounted on the first mounting horizontal plate 35 and a third linear bearing 48 fixedly mounted on the second mounting horizontal plate 50. The fourth guide rod 47 passes through the third linear bearing 48.

[0054] In this embodiment, the working principle of a material sorting mechanism adapted to different product specifications is as follows: In the initial state, there are no defective products on the first material rack 33 and the second material rack 34. The first material rack 33 and the second material rack 34 are located at the bottom of their lifting stroke, and the conveying component starts to operate. The robot grabs the inspected products and places them on the first belt 19 and the third belt 27. If they are good products, they are directly conveyed backward from the conveying component. If they are defective products, when the sensor detects that a defective product is being conveyed, the output shaft of the first motor 38 rotates, which in turn drives the nut of the second ball screw module 37 to rotate through the synchronous belt and the synchronous pulley, thereby driving the screw of the second ball screw module 37 to rise. Since the first material rack 33 and the second material rack 34 are both installed on the first mounting plate 35, the first mounting plate 35 is fixedly installed. At the top of the lead screw of the second ball screw module 37, the lead screw drives the first material rack 33 and the second material rack 34 to rise. Then, the multiple first support bars 40 on the top layer of the first material rack 33 rise through the space between their corresponding adjacent first conveyor wheels 4, and the multiple second support bars 42 on the top layer of the second material rack 34 rise through the space between their corresponding adjacent second conveyor wheels 5, lifting the defective products on the first and second conveyor wheel modules. The rise stops after a predetermined height. When defective products arrive, the first material rack 33 and the second material rack 34 continue to rise, lifting the defective products. When the first and second material racks 33 and 34 are full of defective products, all defective products are removed, and the first and second material racks 33 and 34 descend to the bottom of their lifting stroke and reset. This process of screening defective products is repeated cyclically.

[0055] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A feeding and screening mechanism adaptable to products of different specifications, characterized in that, include: A conveying assembly includes a first conveyor line and a second conveyor line arranged in parallel, and an adjustment module for driving the second conveyor line to move closer to or away from the first conveyor line in a horizontal direction; the first conveyor line includes a first conveyor wheel module, and the second conveyor line has a second conveyor wheel module arranged at a position corresponding to the first conveyor wheel module; the first conveyor wheel module includes a plurality of first conveyor wheels arranged in a row on a first mounting vertical plate, and the second conveyor wheel module includes a plurality of second conveyor wheels arranged in a row on a second mounting vertical plate; The lifting assembly is used to lift defective products on the conveying assembly. It includes a first material rack passing through a first mounting vertical plate and a plurality of first conveying wheels, a second material rack passing through a second mounting vertical plate and a plurality of second conveying wheels, and a lifting drive module for driving the first material rack and the second material rack to lift as a whole.

2. The material feeding and screening mechanism adapted to products of different specifications according to claim 1, characterized in that: The first conveyor line is mounted on the first mounting plate, and the second conveyor line is mounted on the second mounting plate; the first mounting plate is fixed on the frame, and a third mounting plate is fixedly mounted on the frame, with the second mounting plate located between the first mounting plate and the third mounting plate; The adjustment module includes a first ball screw module, the screw of the first ball screw module is rotatably mounted on a first mounting plate and a third mounting plate, and the nut of the first ball screw module is fixed on the second mounting plate. A handwheel is installed at one end of the lead screw of the first ball screw module.

3. The material feeding and screening mechanism adapted to products of different specifications according to claim 1, characterized in that: The first material rack is fixed on the first mounting plate, and the second material rack is mounted on the first mounting plate via a linear guide rail. The lifting drive module includes a second ball screw module and a first drive component that drives the nut of the second ball screw module to rotate. The first mounting plate is fixedly mounted on the top of the screw of the second ball screw module.

4. The material feeding and screening mechanism adapted to products of different specifications according to claim 2, characterized in that: There are two first ball screw modules, and the pair of screws of a pair of first ball screw modules are connected by a synchronous belt and a synchronous pulley.

5. The material feeding and screening mechanism adapted to products of different specifications according to claim 1, characterized in that: The first conveyor line includes a first belt conveyor module located in front of the first conveyor wheel module and a second belt conveyor module located behind the first conveyor wheel module. The second conveyor line includes a third belt conveyor module positioned corresponding to the first belt conveyor module and a fourth belt conveyor module positioned corresponding to the second belt conveyor module; The first belt conveyor module and the third belt conveyor module perform the first stage of product conveying of the conveying components. The first conveyor wheel module and the second conveyor wheel module perform the second stage of product conveying of the conveying components, which is a continuous first stage of product conveying. The second belt conveyor module and the fourth belt conveyor module perform the third stage of product conveying of the conveying components, which is a continuous second stage of product conveying.

6. The material feeding and screening mechanism adapted to products of different specifications according to claim 2, characterized in that: The first conveyor line and the second conveyor line share a second driving component for operation; The second driving component is a motor, and the output shaft of the motor is connected to a main drive shaft via a synchronous belt and a synchronous belt pulley. The main drive shaft is rotatably mounted on the first mounting plate and the third mounting plate. The main drive shaft drives multiple first transmission wheels and multiple second transmission wheels to rotate via a timing belt and timing pulley.

7. The material feeding and screening mechanism adapted to products of different specifications according to claim 6, characterized in that: The radial cross-section of the main drive shaft is polygonal, and a first synchronous pulley is fitted on the main drive shaft with a clearance fit. The first synchronous pulley is provided with a polygonal shaft hole that matches the polygonal shape for the main drive shaft to pass through. The first synchronous pulley includes a cylindrical mounting part and a gear part arranged along its axial direction. The first synchronous pulley is mounted on the second mounting plate by fitting a bearing onto the cylindrical mounting part.

8. The material feeding and screening mechanism adapted to products of different specifications according to claim 5, characterized in that: The first belt conveyor module includes a first driving pulley, a first driven pulley, and a first belt sleeved on the first driving pulley and the first driven pulley. The first conveyor pulley closest to the first belt conveyor module among the plurality of first conveyor pulleys is the first front drive pulley. The first driving pulley is connected to the synchronous pulley that drives the first front drive pulley through a synchronous belt and a synchronous pulley. The second belt conveyor module includes a second driving pulley, a second driven pulley, and a second belt sleeved on the second driving pulley and the second driven pulley. The first conveyor pulley closest to the second belt conveyor module among the plurality of first conveyor pulleys is the first rear drive pulley. The second driving pulley is connected to the synchronous pulley that drives the first rear drive pulley via a synchronous belt and a synchronous pulley. The third belt conveyor module includes a third driving pulley, a third driven pulley, and a third belt sleeved on the third driving pulley and the third driven pulley. The second conveyor pulley closest to the third belt conveyor module among the multiple second conveyor pulleys is the second front drive pulley. The third driving pulley is connected to the synchronous pulley that drives the second front drive pulley via a synchronous belt and a synchronous pulley. The fourth belt conveyor module includes a fourth driving pulley, a fourth driven pulley, and a fourth belt sleeved on the fourth driving pulley and the fourth driven pulley. The second conveyor pulley closest to the fourth belt conveyor module among the multiple second conveyor pulleys is the second rear drive pulley. The fourth driving pulley is connected to the synchronous pulley that drives the second rear drive pulley via a synchronous belt and a synchronous pulley.

9. The material feeding and screening mechanism adapted to products of different specifications according to claim 1, characterized in that: The first material rack includes multiple first material bars arranged in parallel in a vertical direction and first support bars arranged at equal intervals along the axial direction of the multiple first material bars. The first support bars can be raised and lowered between two adjacent first conveyor wheels. The second material rack includes multiple second material rods arranged in parallel in a vertical direction and second support bars arranged at equal intervals along the axial direction of the multiple second material rods. The second support bars can be raised and lowered between two adjacent second conveyor wheels. Multiple first bearing strips and multiple second bearing strips in each layer form a horizontal bearing surface.

10. The material feeding and screening mechanism adapted to products of different specifications according to claim 1, characterized in that: The lifting assembly also includes a first guide module and a second guide module for guiding the lifting of the first and second material racks; The first guide module includes a first guide rod fixed on a first material rack and a first linear bearing fixed on a first mounting plate. The first guide rod passes through the first linear bearing, and the first linear bearing is fixed on the first mounting plate. The second guide module includes a second guide rod fixed on the second material rack and a second linear bearing fixed on the second mounting plate. The second guide rod passes through the second linear bearing, and the second linear bearing is fixed on the second mounting plate.

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