WO2024066237A1

WO2024066237A1 - Waste soft-pack power battery disassembly apparatus

Info

Publication number: WO2024066237A1
Application number: PCT/CN2023/082280
Authority: WO
Inventors: 李爱霞; 谢英豪; 余海军; 张学梅; 李长东
Original assignee: 广东邦普循环科技有限公司; 湖南邦普循环科技有限公司
Priority date: 2022-09-26
Filing date: 2023-03-17
Publication date: 2024-04-04
Also published as: CN115430687A

Abstract

A waste soft-pack power battery disassembly apparatus. The apparatus comprises a power battery accommodation apparatus (1), one side of the power battery accommodation apparatus having movably connected thereto an electrolyte draining apparatus (3), two sides of the power battery accommodation apparatus (1) each being provided with a splitting position adjustment apparatus (2), and one end of each splitting position adjustment apparatus (2) being movably connected to a component extraction apparatus (4).

Description

Waste soft pack power battery disassembly device

This application claims priority to the Chinese patent application filed with the China Patent Office on September 26, 2022, with application number 202211171398.6, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the technical field of battery disassembly, and for example, to a device for disassembling waste soft-pack power batteries.

Background technique

The power battery is the power source of electric vehicles, and the entire battery module is composed of multiple soft-pack batteries.

In the related technology, such as the Chinese patent number: CN106207299B "A device for disassembling and crushing waste soft-pack power batteries", it includes a disassembling device and a crushing device, the disassembling device is located at the front end of the whole device, and the relative positions of the multiple components included in the disassembling device are higher than the multiple components included in the crushing device, the disassembling equipment includes a conveying platform, an alkali liquid spraying device, a grabber, a shell crusher and a waste liquid outlet, and the crushing equipment includes a battery pack lower outlet, a battery pack upper outlet, a crushing bin, a temporary bin for crushed materials and a crushed material storage bin.

However, in the related art, the battery casing is manually disassembled and the battery cell is taken out. The manual method is inefficient and will slow down the speed of power battery insertion. In addition, when the soft-pack battery is disassembled, the electrolyte inside the soft-pack battery flows out. Since the flowing electrolyte is directly mixed together, it is easy to pollute the operator's working environment.

Summary of the invention

The present application provides a disassembly device for used soft-pack power batteries to solve the problem of manually disassembling the battery shell and then taking out the battery cell. The manual method is inefficient and will slow down the speed of power battery insertion. When the soft-pack battery is disassembled, the electrolyte inside the soft-pack battery flows out. Since the flowing electrolyte is directly mixed together, it is easy to pollute the working environment of the operator.

The present application provides a waste soft-pack power battery disassembly device, comprising a power battery accommodating device, one side of the power battery accommodating device is movably connected to an electrolyte discharge device, both sides of the power battery accommodating device are provided with a splitting position adjusting device, and one end of the splitting position adjusting device is movably connected to a component extraction device;

The split position adjustment device comprises a limit base, the top of the limit base is movably connected to a rotating platform, one end of the rotating platform is fixedly connected to a support column, the top of the support column is fixedly connected to a bearing arm, the other end of the rotating platform is movably mounted with an electric wheel, and the bottom of the rotating platform A built-in rubber pad is movably installed, a positioning platform is provided at the junction of the carrying arm and the rotating platform, an electric turntable is movably installed inside the positioning platform, the bottom of the support column is fixedly connected to the top of the electric turntable, an extension support rod is fixedly installed on the top of the support column, a suspension rope is fixedly connected to the outer wall of the extension support rod, and the other end of the suspension rope is fixedly connected to the other end of the carrying arm;

A accommodating cavity is provided on the upper surface of the limiting base, a tooth groove is provided on the inner wall of the accommodating cavity, an extended side plate is fixedly installed on one side of the limiting base, a reinforcement bracket is fixedly installed between the extended side plate and the limiting base, a gasket is fixedly installed on the upper surface of the limiting base, the gasket is located on one side of the accommodating cavity, the bottom of the built-in rubber pad overlaps the upper surface of the gasket and the extended side plate, and a through hole is provided inside the limiting base.

In one or more embodiments, the power battery containing device includes a disassembly tank, a drive motor is fixedly installed on one side of the disassembly tank, a control box is fixedly installed at the junction of the drive motor and the disassembly tank, one end of the drive motor is movably connected to a telescopic rod, and the other end of the telescopic rod is fixedly installed with a movable push plate.

In one or more embodiments, a docking block is fixedly installed on one side of the movable push plate, a drainage groove is provided at the bottom of the disassembly pool, one end of the drainage groove is fixedly connected to the interior of the disassembly pool, a partition panel is fixedly installed at the junction of the disassembly pool and the drainage groove, and a discharge port is provided inside the partition panel.

In one or more embodiments, the electrolyte discharge device includes a support frame, a conveyor belt is movably installed on the top of the support frame, penetration holes are opened inside the conveyor belt, a main discharge pipe is fixedly installed on the bottom of the support frame, and a receiving tank is fixedly connected to the top of the main discharge pipe.

In one or more embodiments, one end of the main discharge pipe is movably connected to a water pump, and one side of the water pump is movably connected to a transfer pipe. There are two transfer pipes in total, and one of the two transfer pipes is fixedly connected to the main discharge pipe.

In one or more embodiments, one end of the two transfer pipes is fixedly connected to the inside of the disassembly tank, and the transfer pipes pass through the through hole.

In one or more embodiments, the parts extraction device includes an electric slider, a mechanical claw is movably installed at the bottom of the electric slider, a transmission rope is fixedly connected to the top of the mechanical claw, the other end of the transmission rope is fixedly connected to a collecting roller, and a accommodating box is fixedly connected to the outer wall of the collecting roller.

In one or more embodiments, the accommodating box is fixedly mounted on the lower surface of the carrying arm, and the electric slider is sleeved on the outer wall of the carrying arm.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a device for disassembling waste soft-pack power batteries provided in the present application;

FIG2 is a schematic structural diagram of a power battery containing device and an electrolyte discharge device of a waste soft-pack power battery disassembly device provided by the present application;

FIG3 is a schematic structural diagram of a disassembly cell of a waste soft-pack power battery disassembly device provided by the present application and connected to an electrolyte discharge device;

FIG4 is an enlarged schematic diagram of the structure of part A in FIG3 of the present application;

FIG5 is a schematic structural diagram of a disassembly position adjustment device and a component extraction device of a waste soft-pack power battery disassembly device provided by the present application;

FIG6 is a schematic diagram of the structure of the bottom structure of a disassembly position adjustment device and a partial parts extraction device of a waste soft-pack power battery disassembly device provided by the present application;

FIG7 is a structural cross-sectional view of a limiting base of a waste soft-pack power battery disassembly device provided in the present application.

In the figure:
1. Power battery storage device; 2. Split part adjustment device; 3. Electrolyte discharge device; 4.
Component extraction device; 11. disassembly tank; 12. drive motor; 13. control box; 14. telescopic rod; 15. movable push plate; 16. docking block; 17. drainage trough; 18. partition panel; 19. discharge port; 21. limit base; 22. rotating platform; 23. support column; 24. load-bearing arm; 25. electric turntable; 26. built-in rubber pad; 27. positioning platform; 28. electric turntable; 29. extension support rod; 210. lifting rope; 211. accommodating cavity; 212. extension side plate; 213. reinforcement bracket; 214. gasket; 215. through hole; 216. tooth groove; 31. support frame; 32. conveyor belt; 33. penetration hole; 34. transfer pipeline; 35. water pump; 36. main discharge pipeline; 37. receiving tank; 41. electric slider; 42. mechanical claw; 43. transmission rope; 44. accommodating box; 45. collecting roller.

Detailed ways

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. The described implementation regulations are only part of the embodiments of the present application, rather than all the embodiments.

Example 1

Referring to Figures 1, 2, 3 and 4: a waste soft-pack power battery disassembly device includes a power battery accommodating device 1, one side of the power battery accommodating device 1 is movably connected with an electrolyte discharge device 3, both sides of the power battery accommodating device 1 are provided with a splitting position adjustment device 2, one end of the splitting position adjustment device 2 is movably connected with a parts extraction device 4, the power battery accommodating device 1 includes a disassembly tank 11, one side of the disassembly tank 11 is fixedly installed with a drive motor 12, the junction of the drive motor 12 and the disassembly tank 11 is fixedly installed with a control box 13, one end of the drive motor 12 is movably connected with a telescopic rod 14, the other end of the telescopic rod 14 is fixedly installed with a movable push plate 15, one side of the movable push plate 15 is fixedly installed with a docking block 16, and the disassembly tank 11 is fixedly installed with a control box 13. A drainage groove 17 is provided at the bottom of the pool 11, one end of which is fixedly connected to the inside of the disassembly pool 11. A partition panel 18 is fixedly installed at the junction of the disassembly pool 11 and the drainage groove 17, and a discharge port 19 is provided inside the partition panel 18. Among them, the disassembly position adjustment device 2 can control the approximate position of the component extraction device 4, so as to disassemble different power batteries in the power battery storage device 1. The driving motor 12 pushes the movable push plate 15 to move through the telescopic rod 14, and completes the clamping and fixing of the power battery when the battery is disassembled.

In this embodiment, the power battery accommodating device 1 is configured to store power batteries that need to be disassembled, and the disassembly part adjusting device 2 can drive the parts extracting device 4 to move, so as to operate different power batteries or different parts of the power batteries. During the operation, the electrolyte discharge device 3 will extract the residual electrolyte in multiple devices, so as to reduce the impact on the operating environment. Before use, the power battery is directly placed in the disassembly tank 11, and then the drive motor 12 is started to push the telescopic rod 14 to move. At this time, the movable push plate 15 will synchronously push the power battery to move until the power battery is pushed to the disassembly tank 1 1, thereby completing the preliminary clamping and fixing of the power battery. Under normal circumstances, this movable push plate 15 will be embedded in the disassembly tank 11 through the docking block 16 on one side to avoid affecting the placement and removal of the power battery. After completing the disassembly of the power battery, the drive motor 12 can also push the movable push plate 15 to move in the disassembly tank 11 through the telescopic rod 14. The movement of the movable push plate 15 can drive the electrolyte to flow along the drainage groove 17 to the partition panel 18, and flow out of the disassembly tank 11 from the discharge port 19 into the electrolyte discharge device 3, thereby reducing the impact of the electrolyte on the battery disassembly. In the process of moving the movable push plate 15, the electrolyte in the disassembly tank 11 is pushed to flow, so that the electrolyte flows along the direction of the drainage groove 17 to the discharge port 19 for discharge, thereby reducing the impact of the electrolyte on the battery disassembly.

Example 2

As shown in Figures 5, 6 and 7, the splitting position adjustment device 2 includes a limiting base 21, the top of the limiting base 21 is movably connected to a rotating platform 22, one end of the rotating platform 22 is fixedly connected to a support column 23, the top of the support column 23 is fixedly connected to a load-bearing arm 24, the other end of the rotating platform 22 is movably installed with an electric turntable 25, the bottom of the rotating platform 22 is movably installed with a built-in rubber pad 26, a positioning platform 27 is provided at the junction of the load-bearing arm 24 and the rotating platform 22, an electric turntable 28 is movably installed inside the positioning platform 27, the bottom of the support column 23 is fixedly connected to the top of the electric turntable 28, and the top of the support column 23 is fixedly installed with an extension support rod 29 A suspension rope 210 is fixedly connected to the outer wall of the extension support rod 29, and the other end of the suspension rope 210 is fixedly connected to the other end of the carrying arm 24. A receiving cavity 211 is provided on the upper surface of the limiting base 21, and a tooth groove 216 is provided on the inner wall of the receiving cavity 211. An extension side plate 212 is fixedly installed on one side of the limiting base 21, and a reinforcement bracket 213 is fixedly installed between the extension side plate 212 and the limiting base 21. A gasket 214 is fixedly installed on the upper surface of the limiting base 21, and the gasket 214 is located on one side of the receiving cavity 211. The bottom of the built-in rubber pad 26 overlaps the gasket 214 and the upper surface of the extension side plate 212, and a through hole 215 is provided inside the limiting base 21. The support column 23 and the carrying arm 24 are in a vertical state, and the rotating platform 22 is set as a double-headed structure, so when one end of the rotating platform 22 rotates, the other end will rotate around the rotating platform. One end of the support 22 rotates in a circle, thereby controlling the position of the component extraction device 4, and the presence of the built-in rubber pad 26 and the limiting base 21, together with the extension support rod 29 and the suspension rope 210, can greatly improve the structural strength of the support column 23 and the carrying arm 24. The accommodating cavity 211 can limit the rotating platform 22, and the tooth groove 216 on the inner wall of the accommodating cavity 211 can be used in conjunction with the electric wheel 25, so that the rotating platform 22 can be rotated and moved on the limiting base 21, expanding the adjustable range of the position.

In this embodiment, the height of the support column 23 and the height of the carrying arm 24 are both fixed. The support column 23 uses the extended support rod 29 and the hanging rope 210 at the top to fully reinforce the carrying arm 24. The bottom of the support column 23 is installed on the electric turntable 28, and the electric turntable 28 is fixed in the positioning platform 27, so that the support column 23 itself can rotate 360 degrees, thereby directly adjusting the direction of the carrying arm 24, and the disassembled battery components can be placed on the electrolyte discharge device 3 for transportation. The positioning platform 27 is installed on one end of the rotating platform 22, and the other end of the rotating platform 22 is connected to the accommodating cavity 211 in the limiting base 21 through the electric turntable 25. The rotating platform 22 can rotate with the electric turntable 25 as the center of the circle, so that the positioning The position of the positioning platform 27 is changed to facilitate the operation of the power battery on the side of the disassembly pool 11 that is closer to the limiting base 21. The rotating platform 22 is overlapped on the gasket 214 and the extended side plate 212 through the built-in rubber pad 26 on the lower surface, so as to ensure the stability of the rotating platform 22. The extended side plate 212 improves its own structural strength by reinforcing the bracket 213, so as to withstand the weight after the rotating platform 22 is fully rotated to the extended side plate 212, and during the rotation of the rotating platform 22, the electric turntable 25 can also operate synchronously. The existence of the tooth groove 216 provides a sufficient friction coefficient for the electric turntable 25, so that the entire rotating platform 22 can be directly moved laterally along the direction of the accommodating cavity 211, so as to directly change the position of the support column 23.

Example 3

As shown in FIG. 2 and FIG. 3 , the electrolyte discharge device 3 includes a support frame 31, a conveyor belt 32 is movably installed on the top of the support frame 31, a permeation hole 33 is opened inside the conveyor belt 32, a main discharge pipe 36 is fixedly installed on the bottom of the support frame 31, a receiving tank 37 is fixedly connected to the top of the main discharge pipe 36, a pump 35 is movably connected to one end of the main discharge pipe 36, and a transfer pipe 34 is movably connected to one side of the pump 35. There are two transfer pipes 34, one of which is fixedly connected to the main discharge pipe 36, and one end of the transfer pipe 34 is fixedly connected to the inside of the disassembly tank 11. The transfer pipe 34 passes through the through hole 215 to improve the fixing effect of the transfer pipe 34 and reduce the situation of loose pipes. In the process of conveying parts, some electrolytes remaining on the surface of the parts can flow into the main discharge pipe 36 through the receiving tank 37 under the action of gravity, reducing the pollution to the working environment of the operator.

In this embodiment, the conveyor belt 32 on the support frame 31 is configured to convey the various battery components extracted by the component extraction device 4. After the battery is disassembled, the components discharged from the disassembly pool 11 are The electrolyte will flow into the main discharge pipe 36 along the transfer pipe 34, and the existence of the water pump 35 can be used as a backup power source, thereby accelerating the discharge speed of the electrolyte. The transfer pipe 34 is fixed in position by the limit base 21, and the main discharge pipe 36 is located below the support frame 31, and the conveyor belt 32 is located directly above the support frame 31. Therefore, when the disassembled parts are placed on the conveyor belt 32, some electrolyte remaining on the surface of the parts can flow into the main discharge pipe 36 through the receiving tank 37 under the action of gravity, reducing the pollution to the working environment of the operator. The electrolyte in the disassembly tank 11 is discharged through the transfer pipe 34, and the existence of the water pump 35 can be used as a backup power source, thereby accelerating the discharge speed of the electrolyte.

Example 4

As shown in FIG. 5 and FIG. 6 , the parts extraction device 4 includes an electric slider 41, a mechanical claw 42 is movably installed at the bottom of the electric slider 41, a transmission rope 43 is fixedly connected to the top of the mechanical claw 42, and the other end of the transmission rope 43 is fixedly connected to a collection roller 45, and a receiving box 44 is fixedly connected to the outer wall of the collection roller 45, and the receiving box 44 is fixedly installed on the lower surface of the bearing arm 24, and the electric slider 41 is sleeved on the outer wall of the bearing arm 24. The mechanical claw 42 is position-controlled by the transmission rope 43, and the existence of the transmission rope 43 allows the mechanical claw 42 to be rotated to any angle for operation. The electric slider 41 can move along the direction of the bearing arm 24 to disassemble batteries at different positions or different parts of the battery.

In this embodiment, the electric slider 41 can be directly operated on the carrying arm 24 to accurately control the extraction position of the mechanical claw 42. When the battery cell needs to be extracted, the collecting roller 45 releases the transmission rope 43 by rotating, so that the mechanical claw 42 separates from the bottom of the electric slider 41 and enters the disassembly pool 11 to grab or disassemble the power battery. Then the support column 23 rotates under the drive of the electric turntable 28, and moves to the conveyor belt 32 to transfer parts under the drive of the rotating platform 22. After the parts are transferred, the collecting roller 45 starts to reverse, thereby recovering the transmission rope 43 into the containing box 44, in preparation for the next release of the mechanical claw 42.

The method of use and working principle of the device are as follows: before use, the power battery is directly placed into the disassembly tank 11, and then the drive motor 12 is started to push the telescopic rod 14 to move. At this time, the movable push plate 15 will synchronously push the power battery to move until the power battery is pushed to the side wall of the disassembly tank 11, thereby completing the preliminary clamping and fixing of the power battery. Then, the collecting roller 45 releases the transmission rope 43 by rotating, so that the mechanical claw 42 separates from the bottom of the electric slider 41 and enters the disassembly tank 11 to grab or disassemble the power battery. After the operation is completed, the support column 2 The electric turntable 28 is driven to rotate, and the rotating platform 22 also rotates with the electric turntable 25 as the center. At the same time, the electric turntable 25 also starts to rotate synchronously, and the tooth groove 216 is used to make the electric turntable 25 move laterally along the direction of the receiving cavity 211, so that the mechanical claw 42 moves to the conveyor belt 32 to put the parts on the conveyor belt 32 for transmission. Then the collecting roller 45 starts to reverse, so as to recycle the transmission rope 43 into the receiving box 44, so as to prepare for the next release of the mechanical claw 42, and the rotating platform 22 will also be reset to align the power battery. After the power battery is processed, the driving motor 12 pushes the movable push plate 15 to move in the disassembly tank 11 through the telescopic rod 14. The movement of the movable push plate 15 can drive the electrolyte to flow along the drainage groove 17 to the partition panel 18, and flow out of the disassembly tank 11 from the discharge port 19 into the transfer pipe 34, and finally enter the main discharge pipe 36 for centralized discharge. Some electrolyte remaining on the surface of the parts can flow into the main discharge pipe 36 from the penetration hole 33 through the receiving tank 37 under the action of gravity.

1. In the present application, the disassembly position adjustment device 2 changes the position and direction of the support column 23 and the carrying arm 24 by rotating the rotating platform 22. At the same time, the parts extraction device 4 is installed on the carrying arm 24 through the electric slider 41, and the mechanical claw 42 is connected to the collecting roller 45 through the transmission rope 43. Therefore, the carrying arm 24 can drive the mechanical claw 42 to move on the disassembly pool 11, and the mechanical claw 42 can rotate 360 degrees through the transmission rope 43, which can replace the manual method to complete the disassembly of the power battery, so as to achieve the purpose of improving the disassembly efficiency, and the specific disassembly position can also be manually determined to ensure the accuracy of the disassembly position.

2. In the present application, the driving motor 12 and the telescopic rod 14 are used to drive the movable push plate 15 to move in the disassembly tank 11, which can not only complete the clamping and fixing of the battery when the battery is disassembled, but also can push the electrolyte to move through the movement of the movable push plate 15 when the electrolyte in the disassembly tank 11 is subsequently cleaned, so that the electrolyte flows into the discharge port 19 along the direction of the drainage groove 17, and then flows away from the main discharge pipe 36 through the transfer pipe 34, so as to reduce the influence of the electrolyte on the battery disassembly.

Although the present application has been described with reference to the aforementioned embodiments, it is still possible to modify the technical solutions recorded in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made should be included in the protection scope of the present application.

Claims

A waste soft-pack power battery disassembly device comprises a power battery containing device (1), one side of the power battery containing device (1) is movably connected to an electrolyte discharge device (3), both sides of the power battery containing device (1) are provided with a splitting position adjustment device (2), and one end of the splitting position adjustment device (2) is movably connected to a component extraction device (4);

The split position adjustment device (2) comprises a limit base (21), the top of the limit base (21) is movably connected to a rotating platform (22), one end of the rotating platform (22) is fixedly connected to a support column (23), the top of the support column (23) is fixedly connected to one end of a bearing arm (24), the other end of the rotating platform (22) is movably mounted with an electric wheel (25), the bottom of the rotating platform (22) is movably mounted with a built-in rubber pad (26), the bearing arm (24) and the A positioning platform (27) is provided at the intersection of the rotating platform (22), an electric turntable (28) is movably installed inside the positioning platform (27), the bottom of the support column (23) is fixedly connected to the top of the electric turntable (28), an extension rod (29) is fixedly installed on the top of the support column (23), one end of a suspension rope (210) is fixedly connected to the outer wall of the extension rod (29), and the other end of the suspension rope (210) is fixedly connected to the other end of the carrying arm (24);

The upper surface of the limiting base (21) is provided with a receiving cavity (211), and the inner wall of the receiving cavity (211) is provided with a tooth groove (216); an extension side plate (212) is fixedly installed on one side of the limiting base (21), and a reinforcement bracket (213) is fixedly installed between the extension side plate (212) and the limiting base (21); a gasket (214) is fixedly installed on the upper surface of the limiting base (21), and the gasket (214) is located on one side of the receiving cavity (211); the bottom of the built-in rubber pad (26) overlaps the gasket (214) and the upper surface of the extension side plate (212); and a through hole (215) is provided inside the limiting base (21).
The device according to claim 1, wherein the power battery containing device (1) comprises a disassembly tank (11), a drive motor (12) is fixedly installed on one side of the disassembly tank (11), a control box (13) is fixedly installed at the junction of the drive motor (12) and the disassembly tank (11), one end of the drive motor (12) is movably connected to one end of a telescopic rod (14), and a movable push plate (15) is fixedly installed on the other end of the telescopic rod (14).
The device according to claim 2, wherein a docking block (16) is fixedly installed on one side of the movable push plate (15), a drainage groove (17) is provided at the bottom of the disassembly pool (11), one end of the drainage groove (17) is fixedly connected to the inside of the disassembly pool (11), and a partition panel (18) is fixedly installed at the junction of the disassembly pool (11) and the drainage groove (17), and a discharge port (19) is provided inside the partition panel (18).
The device according to claim 1, wherein the electrolyte discharge device (3) comprises a support frame (31), a conveyor belt (32) is movably mounted on the top of the support frame (31), a permeable hole (33) is provided inside the conveyor belt (32), and a bottom of the support frame (31) is fixedly mounted There is a main discharge pipe (36), and a receiving tank (37) is fixedly connected to the top of the main discharge pipe (36).
The device according to claim 4, wherein one end of the main discharge pipe (36) is movably connected to a water pump (35), and one side of the water pump (35) is movably connected to a transfer pipe (34).
The device according to claim 5, wherein two transfer pipes (34) are provided, and one of the two transfer pipes (34) is fixedly connected to the main discharge pipe (36).
The device according to claim 6, wherein one end of the two transfer pipes (34) are fixedly connected to the inside of the disassembly tank (11), and the two transfer pipes (34) pass through the through hole (215).
The device according to claim 1, wherein the component extraction device (4) comprises an electric slider (41), a mechanical claw (42) is movably mounted at the bottom of the electric slider (41), and the top of the mechanical claw (42) is fixedly connected to one end of a transmission rope (43).
The device according to claim 8, wherein the other end of the transmission rope (43) is fixedly connected to a collecting roller (45), and a containing box (44) is fixedly connected to the outer wall of the collecting roller (45).
The device according to claim 9, wherein the accommodating box (44) is fixedly mounted on the lower surface of the carrying arm (24), and the electric slider (41) is sleeved on the outer wall of the carrying arm (24).