Universal conveying device for sorting

Abstract

The invention discloses a universal conveying device for sorting, and relates to the technical field of conveying devices. The device comprises a device body, a universal ball conveying belt set is arranged in the device body, an adjusting device is arranged in the middle of the device body, the adjusting device comprises a screw rod, a concentric-square-shaped frame and a rough panel, the screw rod is rotationally installed in the device body through a support, and the screw rod is driven by a motor; and the concentric-square-shaped frame is slidably installed at the top of the device body, a screw block is fixed to the bottom of the concentric-square-shaped frame, the screw block is in threaded connection to the outer portion of the screw rod, and elastic telescopic plates are fixed to the four corners of the top of the concentric-square-shaped frame correspondingly. According to the universal conveying device, through the arrangement of the adjusting device, the screw rod, the screw block, the concentric-square-shaped frame and the device body are matched to drive the friction belt set to move, the unloading positions of transported goods on the two sides of the universal conveying device can be adjusted, and then the flexibility of the universal conveying device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and particularly to a universal conveying device for sorting. Background Art

[0002] The ball-type universal conveying device is an efficient material handling equipment. Using the principle of ball bearings, it can achieve the free sliding and conveying of materials in multiple directions. This device is usually used in assembly lines, production lines and other occasions, and has the characteristics of flexibility, smoothness, low noise, etc. It can effectively improve production efficiency and reduce manual handling costs, and is widely used in the handling and conveying of light materials.

[0003] The Chinese patent with the patent publication number CN207434382U discloses a universal conveying device for a book sorting system. The main problem to be solved by this device is to realize the horizontal and vertical conveying of books on the same conveyor belt. It includes a main conveying mechanism and a friction conveying mechanism. The main conveying mechanism mainly consists of a frame and a universal ball conveyor belt. The friction conveying mechanism mainly consists of a support plate and a friction belt. The friction conveying mechanism is located below the universal ball conveyor belt and uses dynamic friction to make the universal balls at a right angle to the traveling direction of the conveyor belt. When the friction belt in the friction conveying mechanism moves left and right, it can drive the books on the universal ball conveyor belt to move left and right, realizing the sorting action of the books.

[0004] However, the current universal conveying device has the following problems: When the universal conveying device transports goods, it is not convenient to adjust the unloading positions of the transported goods on both sides of the universal conveying device, thus restricting the scheduling and reconfiguration of the goods. Especially when it is necessary to change the conveying path or adjust the transportation process, the flexibility of the universal conveying device is restricted. Therefore, we propose a universal conveying device for sorting. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a universal conveying device for sorting, which solves the problems put forward in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A universal conveying device for sorting, comprising a device main body. Inside the device main body, a universal ball conveyor belt group is provided. In the middle of the device main body, an adjusting device is provided. The adjusting device includes a screw rod, a U-shaped frame, and a rough panel. The screw rod is rotatably installed inside the device main body through a bracket and is driven by a motor. The U-shaped frame is slidably installed on the top of the device main body. A screw block is fixed to the bottom of the U-shaped frame and is threadedly connected to the outside of the screw rod. Elastic telescopic plates are fixed at the four corners of the top of the U-shaped frame. Between the telescopic ends of the four elastic telescopic plates, a friction belt group is provided. The friction belt group includes a friction belt and two rollers. The two rollers are respectively rotatably installed between the telescopic ends of two opposite elastic telescopic plates. A single roller is driven by a motor. The friction belt is drivingly connected between the two rollers. The top surface of the friction belt is in contact with the outer wall of the balls of the universal ball conveyor belt group. By driving the screw rod to rotate through the motor, the screw rod drives the screw block to drive the U-shaped frame to move along the top of the device main body. The U-shaped frame drives the friction belt group to displace through the elastic telescopic plates. Between the outer walls of the telescopic ends of the two elastic telescopic plates on one side, a U-shaped rod is fixed. A chute is provided on the outer wall below the U-shaped rod. An elastic telescopic rod is fixed at the inner wall of the U-shaped frame. The end of the elastic telescopic rod away from the inner wall of the U-shaped frame is fixedly connected to a vertical plate. A turntable is rotatably connected to the outer wall below the vertical plate. A torsion spring is provided between the turntable and the vertical plate. A sliding column is fixed eccentrically on the outer wall of the turntable. The sliding column is slidably installed inside the chute of the U-shaped rod. A push rod is fixed to the outer wall at the bottom of the vertical plate. A strip-shaped through hole for the push rod to slide through is provided on the outer wall of the device main body. The rough panel is fixed to the inner wall of the device main body. The top of the rough panel is provided with a rough surface. The outer wall of the turntable is provided with a rough surface. The outer wall of the turntable is in contact with the top of the rough panel. At the same time, when the U-shaped frame moves, the U-shaped frame drives the turntable to move through the elastic telescopic plates and the vertical plate. Under the action of the frictional force between the turntable and the rough panel, the rough panel drives the turntable to rotate. The turntable drives the sliding column to rotate. The sliding column slides inside the chute of the U-shaped rod, and the sliding column drives the U-shaped rod to move downward. The U-shaped rod pulls the telescopic end of the elastic telescopic plate to move downward. The elastic telescopic plate drives the friction belt to move downward through the roller. At this time, the friction belt is no longer in contact with the outer wall of the balls of the universal ball conveyor belt group.

[0007] According to the above technical solution, a connecting plate is fixedly connected between two adjacent elastic telescopic plates. By connecting two adjacent elastic telescopic plates through the connecting plate, it can be ensured that the telescopic movements of these two elastic telescopic plates can drive the two rollers to move synchronously.

[0008] According to the above technical solution, the adjusting device further includes a support plate and four fixing rods. The four fixing rods are respectively fixed on one side of the two connecting plates close to each other. The support plate is fixed between the tops of the four fixing rods. The top of the support plate is in contact with the inner wall top of the friction belt. During the operation of the friction belt, the support plate will form a support on the inner wall top of the friction belt.

[0009] According to the above technical solution, limiting devices are arranged on both sides of the loop-shaped frame. The limiting device includes a guide plate and two rough-surface wheels. The guide plate is fixed on the top of the loop-shaped frame through a bracket. Rough-surface rods are slidably installed on both sides of the guide plate. On one side of the two rough-surface rods away from the loop-shaped frame, an L-shaped top plate is fixed. On the top of the two rough-surface rods, a U-shaped limiting rod is fixed. A groove for accommodating the U-shaped limiting rod is formed in the top of the guide plate. The two rough-surface wheels are respectively fixed on the outer walls of both sides of the rotating shaft of a single rotating roller. The outer wall of the rough-surface wheel is set as a rough surface. The side of the rough-surface rod close to the loop-shaped frame is set as a rough surface. The outer wall of the rough-surface wheel is in contact with the side of the rough-surface rod close to the loop-shaped frame. The inner vertical surface of the L-shaped top plate and the end of the guide plate away from the loop-shaped frame are on the same vertical plane. The top of the L-shaped top plate and the bottom of the guide plate are on the same horizontal plane. After the position of the adjusting device is adjusted, the two receiving platforms are respectively placed on both sides of the adjusting device, and the receiving platforms are installed on the side of the guide plate away from the device body. At this time, the top of the L-shaped top plate abuts against the bottom surface of the receiving platform. However, when the receiving platform is not installed on one side of the guide plate and the worker misoperates the transportation direction of the goods, during the process of the motor driving the rotating roller to rotate and drive the friction belt to operate, the friction belt drives the balls of the universal ball conveyor belt group to drive the goods to displace to one side. The rotating roller on one side drives the rough-surface wheel on one side to rotate synchronously. The rough-surface wheel on one side drives the rough-surface rod on one side to move upward along the outer wall of the guide plate. Since the top of the L-shaped top plate does not abut against the bottom surface of the receiving platform, the L-shaped top plate will not interfere with the movement of the rough-surface rod. At this time, the rough-surface rod drives the U-shaped limiting rod and the L-shaped top plate to move upward.

[0010] The present invention provides a universal conveying device for sorting, which has the following beneficial effects:

[0011] (1) Through the setting of the adjusting device in the present invention, the screw rod, the screw block, the loop-shaped frame and the device body cooperate to drive the displacement of the friction belt group, so that the unloading positions of the transported goods on both sides of the universal conveying device can be adjusted, thereby improving the flexibility of the universal conveying device; at the same time, the loop-shaped frame, the elastic telescopic plate, the vertical plate, the turntable, the rough-surface plate, the sliding column and the U-shaped rod cooperate to drive the friction belt to no longer contact the outer wall of the balls of the universal ball conveyor belt group, so as to ensure that the movement of the friction belt will not directly affect the balls on the universal ball conveyor belt group, thereby avoiding the interference of the movement of the friction belt on the transported goods, and then keeping the balls of the universal ball conveyor belt group rotating freely, ensuring that the goods can move smoothly on the universal ball conveyor belt group.

[0012] (2) By providing the support plate, the present invention enables the support plate to form a support at the top inner wall of the friction belt. The support plate provides additional support for the friction belt, helping to maintain the shape and structural stability of the friction belt. Especially when the friction belt is in contact with the outer wall of the ball, the support plate can prevent the friction belt from deforming due to excessive force, ensuring that the friction belt can work stably.

[0013] (3) By providing the limiting device, the present invention enables the roller, the friction belt, the universal ball conveyor belt group, the rough surface wheel, the rough surface rod, the guide plate, and the L-shaped top plate to cooperate to drive the U-shaped limiting rod and the L-shaped top plate to move upward. The U-shaped limiting rod will form a limit on the side of the universal ball conveyor belt group, thereby preventing the goods from moving in the direction where the receiving table is not installed, making the entire transportation process of the goods more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the whole of the present invention;

[0015] Figure 2 is a schematic diagram of the whole of the present invention;

[0016] Figure 3 is a schematic partial sectional view of the present invention Figure 1 ;

[0017] Figure 4 is a schematic partial structure of the present invention Figure 2 ;

[0018] Figure 5 is a schematic diagram of the adjusting device of the present invention Figure 1 ;

[0019] Figure 6 is a schematic diagram of the adjusting device of the present invention Figure 2 ;

[0020] Figure 7 is a schematic partial structure diagram of the adjusting device of the present invention;

[0021] Figure 8 is a schematic diagram of the limiting device of the present invention.

[0022] In the figure: 1. Device main body; 2. Universal ball conveyor belt group; 3. Adjusting device; 31. Screw rod; 32. Screw block; 33. Return-shaped frame; 34. Elastic telescopic plate; 35. Connecting plate; 36. Roller; 37. Friction belt; 38. U-shaped rod; 39. Turntable; 310. Push rod; 311. Elastic telescopic rod; 312. Vertical plate; 313. Slide column; 314. Rough panel; 315. Fixed rod; 316. Support plate; 4. Limiting device; 41. Guide plate; 42. L-shaped top plate; 43. Rough surface rod; 44. Rough surface wheel; 45. U-shaped limiting rod. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Please refer to Figure 1 - Figure 8An embodiment of the present invention is: a universal conveying device for sorting, comprising a device body 1, a universal ball conveying belt group 2 is arranged inside the device body 1, an adjusting device 3 is arranged in the middle of the device body 1, the adjusting device 3 comprises a screw 31, a circular frame 33, and a rough panel 314, the screw 31 is rotatably installed inside the device body 1 through a bracket, and the screw 31 is driven by a motor, the circular frame 33 is slidably installed on the top of the device body 1, a screw block 32 is fixed at the bottom of the circular frame 33, and the screw block 32 is threadedly connected to the outside of the screw 31, and elastic retractable plates 34 are fixed at the four corners of the top of the circular frame 33, and the four elastic retractable plates 34 are fixed. A friction belt group is arranged between the telescopic ends of the retractable plate 34, and the friction belt group includes a friction belt 37 and two rollers 36. The two rollers 36 are respectively rotatably installed between the telescopic ends of the two opposite elastic retractable plates 34. The single roller 36 is driven by a motor, and the friction belt 37 is connected between the two rollers 36. The top surface of the friction belt 37 is in contact with the outer wall of the ball of the universal ball conveyor belt group 2. Through the arrangement of the above structure, the circular frame 33 drives the friction belt group to move through the elastic retractable plate 34, so that the unloading position of the transported goods on both sides of the universal conveying device can be adjusted, thereby improving the flexibility of the universal conveying device. The two elastic A U-shaped rod 38 is fixed between the outer walls of the telescopic ends of the telescopic plates 34, a sliding groove is provided on the lower outer wall of the U-shaped rod 38, an elastic telescopic rod 311 is fixed on the inner wall of the round frame 33, and one end of the elastic telescopic rod 311 away from the inner wall of the round frame 33 is fixedly connected to a vertical plate 312, a turntable 39 is rotatably connected to the outer wall below the vertical plate 312, a torsion spring is provided between the turntable 39 and the vertical plate 312, a sliding column 313 is fixed at the eccentric part of the outer wall of the turntable 39, and the sliding column 313 is slidably installed in the sliding groove of the U-shaped rod 38, a push rod 310 is fixed on the bottom outer wall of the vertical plate 312, and a strip for sliding the push rod 310 is provided on the outer wall of the device body 1 shaped opening, the rough panel 314 is fixed on the inner wall of the device body 1, the top of the rough panel 314 is set as a rough surface, the outer wall of the turntable 39 is set as a rough surface, and the outer wall of the turntable 39 is in contact with the top of the rough panel 314. Through the setting of the above structure, the friction belt 37 is no longer in contact with the outer wall of the ball of the universal ball conveyor belt group 2, thereby ensuring that the movement of the friction belt 37 will not directly affect the balls on the universal ball conveyor belt group 2, thereby avoiding the interference of the movement of the friction belt 37 on the transported goods, and then keeping the balls of the universal ball conveyor belt group 2 free to rotate, ensuring that the goods can move smoothly on the universal ball conveyor belt group 2.

[0025] A connecting plate 35 is fixedly connected between two adjacent elastic retractable plates 34 , and the connecting plate 35 connects the two adjacent elastic retractable plates 34 , thereby ensuring that the retractable action of the two elastic retractable plates 34 can drive the two rollers 36 to move synchronously.

[0026] The adjusting device 3 further includes a support plate 316 and four fixing rods 315. The four fixing rods 315 are respectively fixed on the sides of the two connecting plates 35 close to each other, and the support plate 316 is fixed between the tops of the four fixing rods 315. The top of the support plate 316 is in contact with the inner wall top of the friction belt 37. Through the setting of the above structure, the support plate 316 forms a support on the inner wall top of the friction belt 37. The support plate 316 provides additional support for the friction belt 37 to help maintain the shape and structural stability of the friction belt 37. Especially when the friction belt 37 is in contact with the outer wall of the ball, the support plate 316 can prevent the friction belt 37 from deforming due to excessive force, ensuring that the friction belt 37 can work stably.

[0027] During use, it is necessary to adjust the unloading positions of the goods on both sides of the device main body 1. By driving the screw 31 to rotate with a motor, the screw 31 drives the nut block 32 to drive the return frame 33 to move along the top of the device main body 1. The return frame 33 drives the friction belt group to displace through the elastic telescopic plate 34, so as to adjust the unloading positions of the transported goods on both sides of the universal conveying device, thereby improving the flexibility of the universal conveying device. At the same time, when the return frame 33 moves, the return frame 33 drives the turntable 39 to move through the elastic telescopic plate 34 and the vertical plate 312. Under the frictional force between the turntable 39 and the rough panel 314, the rough panel 314 drives the turntable 39 to rotate. The turntable 39 drives the sliding column 313 to rotate. The sliding column 313 slides along the inner part of the chute of the U-shaped rod 38, and the sliding column 313 drives the U-shaped rod 38 to move downward. The U-shaped rod 38 pulls the telescopic end of the elastic telescopic plate 34 to move downward. The elastic telescopic plate 34 drives the friction belt 37 to move downward through the roller 36. At this time, the friction belt 37 no longer contacts the outer wall of the balls of the universal ball conveyor belt group 2, so as to ensure that the movement of the friction belt 37 will not directly affect the balls on the universal ball conveyor belt group 2, thus avoiding the interference of the movement of the friction belt 37 on the transported goods, and then keeping the balls of the universal ball conveyor belt group 2 rotating freely, ensuring that the goods can move smoothly on the universal ball conveyor belt group 2. It should be noted that after the position of the friction belt 37 is adjusted, push the push rod 310 towards the device main body 1. The push rod 310 pushes the vertical plate 312 to drive the telescopic end of the elastic telescopic rod 311 to stretch. The vertical plate 312 drives the sliding column 313 to separate from the chute of the U-shaped rod 38 through the turntable 39. At this time, under the elastic force of the elastic telescopic plate 34, the telescopic end of the elastic telescopic plate 34 drives the friction belt 37 to move upward. At this time, the friction belt 37 contacts the outer wall of the balls of the universal ball conveyor belt group 2 again. After the sliding column 313 separates from the chute of the U-shaped rod 38, the turntable 39 resets under the elastic force of the corresponding torsion spring. The turntable 39 drives the sliding column 313 to reset and rotate. Then release the push rod 310. Under the elastic force of the elastic telescopic rod 311, the elastic telescopic rod 311 drives the turntable 39 to reset and move through the vertical plate 312. At this time, the turntable 39 drives the sliding column 313 to re-insert into the chute of the U-shaped rod 38, so as to facilitate the next adjustment operation of the adjusting device 3. During the operation of the friction belt 37, the supporting plate 316 will form a support at the top of the inner wall of the friction belt 37. The supporting plate 316 provides additional support for the friction belt 37 to help maintain the shape and structural stability of the friction belt 37. Especially when the friction belt 37 contacts the outer wall of the balls, the supporting plate 316 can prevent the friction belt 37 from deforming due to excessive force, ensuring that the friction belt 37 can work stably.

[0028] It should be noted that the trajectory of the turntable 39 driving the sliding column 313 to rotate is restricted by the U-shaped rod 38. The downward movement range of the U-shaped rod 38 is the contraction range of the elastic telescopic plate 34. After the U-shaped rod 38 is pushed downward by the sliding column 313 to the limit position, the rolling friction between the turntable 39 and the rough panel 314 becomes sliding friction.

[0029] Please refer to Figure 1 - Figure 8 , on the basis of the above embodiment, in another embodiment of the present invention, limiting devices 4 are provided on both sides of the return frame 33. The limiting device 4 includes a guide plate 41 and two rough surface wheels 44. The guide plate 41 is fixed to the top of the return frame 33 through a bracket. Rough surface rods 43 are slidably installed on both sides of the guide plate 41. An L-shaped top plate 42 is fixed to the side of the two rough surface rods 43 away from the return frame 33. A U-shaped limiting rod 45 is fixed to the top of the two rough surface rods 43. A groove for accommodating the U-shaped limiting rod 45 is provided at the top of the guide plate 41. The two rough surface wheels 44 are respectively fixed to the outer walls on both sides of the rotating shaft of a single roller 36. The outer wall of the rough surface wheel 44 is set as a rough surface. The side of the rough surface rod 43 close to the return frame 33 is set as a rough surface. The outer wall of the rough surface wheel 44 is in contact with the side of the rough surface rod 43 close to the return frame 33. The inner vertical surface of the L-shaped top plate 42 and the end of the guide plate 41 away from the return frame 33 are in the same vertical plane. The top of the L-shaped top plate 42 and the bottom of the guide plate 41 are in the same horizontal plane. When a worker misoperates the transportation direction of the goods in the case where the receiving platform is not installed on one side of the guide plate 41, through the setting of the above structure, the U-shaped limiting rod 45 will form a limit on the side of the universal ball conveyor belt group 2, so that the U-shaped limiting rod 45 hinders the goods from moving in the direction where the receiving platform is not installed, thereby making the entire transportation process of the goods more stable and reliable.

[0030] During use, after the position of the adjusting device 3 is adjusted, the two receiving platforms are respectively placed on both sides of the adjusting device 3, and the receiving platforms are installed on the side of the guide plate 41 away from the device main body 1. At this time, the top of the L-shaped top plate 42 abuts against the bottom surface of the receiving platform. However, when the receiving platform is not installed on one side of the guide plate 41 and the worker misoperates the transportation direction of the goods, during the operation of the friction belt 37 driven by the motor to drive the roller 36 to rotate, the friction belt 37 drives the balls of the universal ball conveyor belt group 2 to drive the goods to displace to one side. The roller 36 on one side synchronously drives the rough surface wheel 44 on one side to rotate, and the rough surface wheel 44 on one side drives the rough surface rod 43 on one side to move upward along the outer wall of the guide plate 41. Since the top of the L-shaped top plate 42 does not abut against the bottom surface of the receiving platform, the L-shaped top plate 42 will not interfere with the movement of the rough surface rod 43. At this time, the rough surface rod 43 drives the U-shaped limiting rod 45 and the L-shaped top plate 42 to move upward. The U-shaped limiting rod 45 will form a limit on the side of the universal ball conveyor belt group 2, so that the U-shaped limiting rod 45 hinders the goods from moving in the direction where the receiving platform is not installed, thereby making the entire transportation process of the goods more stable and reliable.

[0031] It should be noted that the rough surface wheel 44 on the other side drives the rough surface rod 43 on the other side to always abut against the top of the return frame 33, and the rough surface wheel 44 on the other side and the rough surface rod 43 on the other side are in a state of sliding friction.

[0032] It should also be noted that when the friction belt 37 drives the balls of the universal ball conveyor belt group 2 to drive the goods to move, the rotation direction of the friction belt 37 is opposite to the movement direction of the goods.

[0033] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A universal conveying device for sorting, comprising a device main body (1), characterized in that: A universal ball conveyor belt group (2) is arranged inside the device body (1), and an adjustment device (3) is arranged in the middle of the device body (1). The adjustment device (3) comprises a screw rod (31) rotatably mounted inside the device body (1) through a bracket, a circular frame (33) slidably mounted on the top of the device body (1), and a rough panel (314) fixed to the inner wall of the device body (1). A screw block (32) is fixed at the bottom of the circular frame (33), and the screw block (32) is threadedly connected to the outside of the screw rod (31). Elastic expansion plates (34) are fixed at the four corners of the top of the circular frame (33). A friction belt group is arranged between the four elastic expansion plates (34). Two friction belts are arranged on one side. A U-shaped rod (38) is fixed between the outer walls of the telescopic ends of the elastic telescopic plate (34), a sliding groove is provided on the outer wall of the U-shaped rod (38), the inner wall of the circular frame (33) is fixedly connected to the fixed end of the elastic telescopic rod (311), a vertical plate (312) is fixed to the telescopic end of the elastic telescopic rod (311), a rotating disk (39) is rotatably connected to the lower outer wall of the vertical plate (312), a torsion spring is provided between the rotating disk (39) and the vertical plate (312), a sliding column (313) is fixed at the eccentric position of the outer wall of the rotating disk (39), the sliding column (313) is slidably installed in the sliding groove of the U-shaped rod (38), and a push rod (310) is fixed to the bottom outer wall of the vertical plate (312).

2. The universal conveying device for sorting according to claim 1, characterized in that: The friction belt assembly comprises a friction belt (37) and two rollers (36). The two rollers (36) are rotatably mounted between the telescopic ends of two opposite elastic telescopic plates (34). A single roller (36) is driven by a motor. The friction belt (37) is transmission-connected between the two rollers (36). The top surface of the friction belt (37) contacts the outer wall of the ball of the universal ball conveyor belt assembly (2).

3. The universal conveying device for sorting according to claim 2, wherein: A connecting plate (35) is fixedly connected between two adjacent elastic expansion plates (34).

4. The universal conveying device for sorting according to claim 1, characterized in that: The outer wall of the device body (1) is provided with a strip-shaped opening for the push rod (310) to slide.

5. The universal conveying device for sorting according to claim 1, characterized in that: The top of the rough panel (314) is provided as a rough surface, the outer wall of the rotating disk (39) is provided as a rough surface, and the outer wall of the rotating disk (39) is in contact with the top of the rough panel (314).

6. The universal conveying device for sorting according to claim 3, characterized in that: The adjusting device (3) further comprises a supporting plate (316) and four fixing rods (315), wherein the four fixing rods (315) are respectively fixed on the sides of the two connecting plates (35) close to each other, and the supporting plate (316) is fixed between the tops of the four fixing rods (315).

7. A universal conveying device for sorting according to claim 6, characterized in that: The top of the supporting plate (316) contacts the top of the inner wall of the friction belt (37).

8. The universal conveying device for sorting according to claim 2, characterized in that: Limit devices (4) are arranged on both sides of the loop-shaped frame (33). The limit devices (4) include guide plates (41) and two rough surface wheels (44). The guide plates (41) are fixed to the top of the loop-shaped frame (33) through brackets. Rough surface rods (43) are slidably mounted on both sides of the guide plates (41). An L-shaped top plate (42) is fixed to the side of the two rough surface rods (43) away from the loop-shaped frame (33). A U-shaped limit rod (45) is fixed to the top of the two rough surface rods (43). Grooves for accommodating the U-shaped limit rod (45) are formed in the top of the guide plates (41). The two rough surface wheels (44) are respectively fixed to the outer walls on both sides of the rotating shaft of a single roller (36).

9. A universal conveying device for sorting according to claim 8, characterized in that: The outer wall of the rough surface wheel (44) is arranged as a rough surface, and the side of the rough surface rod (43) close to the loop-shaped frame (33) is arranged as a rough surface. The outer wall of the rough surface wheel (44) is in contact with the side of the rough surface rod (43) close to the loop-shaped frame (33).

10. A universal conveying device for sorting according to claim 8, characterized in that: The inner vertical surface of the L-shaped top plate (42) and the end of the guide plate (41) away from the loop-shaped frame (33) are in the same vertical plane, and the top of the L-shaped top plate (42) and the bottom of the guide plate (41) are in the same horizontal plane.

Images