Linear waste lithium battery discharging equipment

Abstract

The utility model provides linear waste lithium battery discharging equipment, which comprises a moving mechanism, a discharging assembly and a manipulator, the moving mechanism comprises a plurality of partition plates and a conveying belt with skirt edges, the partition plates are arranged on the conveying belt at equal intervals, and a frame-shaped structure capable of loading waste lithium batteries is defined by the partition plates and the skirt edges; the discharging assembly comprises a discharging water tank and a discharging unit, and the discharging water tank is used for storing cold water for heat dissipation and is arranged in parallel along the side end of the conveying belt in the length direction; the discharging unit comprises a heating wire and discharging clamps which are arranged in pairs and used for being clamped on a positive pole lug and a negative pole lug of the waste lithium battery to be discharged respectively, the discharging clamps are connected with the heating wire through cables, and the heating wire is soaked in cold water in the heat dissipation water tank; the two manipulators are located in the feeding area and the discharging area of the conveying belt correspondingly. The waste lithium battery discharging device can automatically feed and discharge materials, safely discharges waste lithium batteries on a large scale, is free of pollution, and is particularly suitable for waste square lithium batteries.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste lithium battery recycling, and in particular relates to a waste lithium battery discharging device. Background Art

[0002] With the vigorous development of my country's new energy vehicle industry in recent years, a large number of lithium-ion power batteries have been used. The service life of lithium batteries is generally 5-8 years. More and more large-scale lithium batteries will face retirement.

[0003] Because lithium batteries contain valuable metals such as nickel, cobalt, manganese, and lithium, which have high recycling value, they often retain a certain amount of charge when removed from new energy vehicles and two-wheeled new energy vehicles. If disassembled while charged, they are prone to fire, posing a safety hazard. Therefore, discharge is one of the most critical steps in the lithium battery recycling and disassembly process. Currently, discharge treatment for recycled lithium batteries primarily involves salt water discharge and battery cabinet discharge. These discharge methods are complex, time-consuming, and inefficient, making them insufficient for large-scale, safe, efficient, and pollution-free discharge. They no longer meet the demand for large-scale lithium battery discharge recycling and disassembly.

[0004] Therefore, it is necessary to solve the above-mentioned defects. Summary of the Invention

[0005] The purpose of the utility model is to provide a linear waste lithium battery discharge device, which can discharge waste lithium batteries safely in large quantities, without pollution and automatically.

[0006] The utility model provides a linear waste lithium battery discharge device, comprising a moving mechanism, a discharge assembly and a manipulator, wherein the moving mechanism comprises a plurality of partitions and a conveyor belt with a skirt for driving each of the partitions to move linearly, wherein the partitions are arranged at equal intervals on the conveyor belt and enclosed with the skirt to form a plurality of frame-shaped structures capable of loading waste lithium batteries; the discharge assembly comprises a discharge trough and a discharge unit, wherein the discharge trough is a linear trough for storing cold water for heat dissipation and is arranged parallel to the side ends in the length direction of the conveyor belt; the discharge unit comprises a heating wire and a discharge clamp arranged in pairs for respectively clamping the positive electrode tab and the negative electrode tab of the waste lithium battery to be discharged, wherein the two discharge clamps are respectively connected to the two ends of the heating wire by two cables, and the heating wire is immersed in the cold water in the heat dissipation trough; two manipulators are provided, which are respectively located in the loading area and the unloading area of the conveyor belt.

[0007] Optionally, the skirt is extended upward along both sides of the conveyor belt in the length direction, and the skirt is formed into a long strip by alternatingly intersecting a plurality of semicircular arc segments and a plurality of straight line segments.

[0008] Optionally, the moving mechanism also includes a driving component, which is fixed on the conveyor belt frame and includes a servo motor, a driving wheel connected to the output end of the servo motor, and a driven wheel spaced apart from the driving wheel. The conveyor belt is sleeved on the driving wheel and the driven wheel and moves in coordination with the driving wheel and the driven wheel.

[0009] Optionally, the discharge water trough is installed on a water trough frame, and is arranged parallel to the side end and at intervals along the length direction of the conveyor belt.

[0010] Optionally, the discharge water tank is provided with an opening upward, a cover plate is provided on the top of the opening, and an exhaust pipe for connecting to a pipeline and an exhaust fan is provided on the cover plate.

[0011] Optionally, two cables connected to both ends of the heating wire are hung in pairs on a wire hanging rod, and the wire hanging rod is fixed to the side end of the water tank frame.

[0012] Optionally, each of the heating wires is in a single layer or multiple layers and is fixed on an insulating plate in an array, and the insulating plate is placed in the discharge water tank.

[0013] Optionally, the heating wire is spirally wound.

[0014] Optionally, the manipulator includes a support base, a rotating mechanism, a rocker mechanism and an actuator, the lower end of the support base is fixed to the ground, the rotating mechanism includes a first motor and a turntable, which are fixed to the support base through a fixed base; the rocker mechanism includes a second motor, a first swing arm, a third motor and a second swing arm, the second motor is fixed on the turntable, the lower end of the first swing arm is connected to the output end of the second motor, the third motor is fixed to the upper end of the first swing arm, and one end of the second swing arm is connected to the output end of the third motor; the actuator includes a fourth motor, a cylinder and a clamp, the fourth motor is fixed to the other end of the second swing arm, the output end of the fourth motor is connected to the cylinder, and the clamp is connected to the cylinder.

[0015] Optionally, both ends of the clamp are provided with sharp edges facing outwards.

[0016] The utility model loads each waste lithium battery in a frame structure formed by a conveyor belt, a skirt and a partition, and realizes automatic loading and unloading through the cooperation of the conveyor belt and the manipulator, which greatly reduces the operator's work intensity. After the loading is completed, the discharge clamps arranged in pairs are connected to the positive and negative pole ears of the waste lithium battery. The waste lithium battery can be discharged by standing for a certain period of time. At the same time, through the combination of the discharge tank and the heating wire immersed in the discharge tank, the electrical energy in the discharge process is converted into heat energy, which is absorbed by the cold water and evaporated to dissipate heat. After the discharge is completed, it is only necessary to loosen the discharge clamps on all the waste lithium batteries on the conveyor belt and press the unloading button. The manipulator automatically starts unloading, and the conveyor belt cooperates to transport until the unloading is completed. The whole process is easy to operate, does not generate wastewater or exhaust gas, and is safe, efficient and pollution-free.

[0017] The utility model has high discharge efficiency, is conducive to the safe discharge of a large number of waste lithium batteries, is particularly suitable for various waste square lithium batteries, and is compatible with most waste square lithium batteries on the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2A This is a schematic diagram of the structure of the manipulator in the embodiment of the utility model Figure 1 ;

[0020] Figure 2B This is a second schematic diagram of the structure of the manipulator according to an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mobile mechanism of the embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the discharge assembly of an embodiment of the utility model;

[0023] Figure 5 This is a schematic diagram of the combined structure of the discharge water tank, heating wire and insulation board in the embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the combined structure of the insulating plate and the heating wire in the embodiment of the utility model;

[0025] Figure 7 This is a schematic diagram of the discharge of a single waste square aluminum box lithium battery in an embodiment of the present utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] It should be noted that when an element is referred to as being “connected,” “provided with,” or “disposed on” another element, it can be directly on the other element or there may be an intermediate element at the same time.

[0028] It should also be noted that the directional terms such as "one end", "the other end", "front end", "end", "upper end", "lower end" in the embodiments of the present invention are only relative concepts or are based on the normal use state of the product, or are based on the positions shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be considered as restrictive.

[0029] See also Figure 1 The embodiment of the utility model provides a linear waste lithium battery discharge device for discharging recycled rectangular or square aluminum shell waste lithium batteries 5, including a moving mechanism 2, a discharge component 3 and a manipulator 1.

[0030] See also Figure 3 In a specific embodiment of the present invention, the moving mechanism 2 includes a conveyor belt frame 21, a driving component 22, a conveyor belt 23, a skirt 24 and a plurality of partitions 25. The driving component 22 is fixed to one end of the conveyor belt frame 21, and the conveyor belt frame 21 is constructed of multiple aluminum profiles to form a rectangular frame structure; the driving component 22 includes a servo motor 221, a driving wheel 222 and a driven wheel 223. The servo motor 221 is fixed to one end of the conveyor belt frame 21, the driving wheel 222 is connected to the output end of the servo motor 221, the driven wheel 223 is spaced apart from the driving wheel 222 and is located at the other end of the conveyor belt frame 21. The central axis of the driving wheel 222 and the driven wheel 223 is horizontally arranged. The conveyor belt 23 has a certain width and is sleeved on the driving wheel 222 and the driven wheel 223. It moves linearly under the drive of the driving wheel 222 and the driven wheel 223. The conveyor belt 23 has skirts on both sides. The skirts 24 extend vertically upward along both sides of the length direction of the conveyor belt 23. They can be of straight strip type or of a straight strip type. Figure 1 、 Figure 3As shown, the skirt 24 is formed into a long strip by alternating intersecting semicircular arc segments and straight line segments. Partitions 25 are equidistantly spaced on the conveyor belt 23 and bonded to the skirt 24 to form a plurality of equally sized frames for loading the used lithium batteries 5. The skirt 24 and partitions 25 are of a certain height to prevent the used lithium batteries 5 from toppling during loading and conveying. When the servo motor 221 is energized, it drives the driving wheel 222 and the driven wheel 223 to rotate, moving the conveyor belt 23. The conveyor belt 23 also drives the used lithium batteries 5 loaded within the frame formed by the skirt 24 and partitions 25 to move linearly on the conveyor frame 21.

[0031] See also Figure 4-Figure 7 In a specific embodiment of the present invention, the discharge assembly 3 includes a discharge water tank 33 and multiple discharge units 35. Each discharge unit 35 corresponds to a used lithium battery 5 to be discharged. The discharge water tank 33 is mounted on a water tank frame 31, which is fixed to the ground. The discharge water tank 33 is a linear trough used to store cold water for heat dissipation. It is arranged parallel to and spaced apart from one end of the conveyor belt 23 along its length. The discharge water tank 33 has an upward opening, and a cover plate 34 is provided at the top of the opening. An exhaust pipe 32 is provided on the cover plate 34, which can be connected to a pipeline and an exhaust fan to discharge the evaporated hot water vapor in the discharge water tank 33 to the outside. The discharge unit 35 includes a heating wire 352, a cable 354, and a pair of discharge clamps 351. The two ends of the heating wire 352 are connected to one end of two cables 354, and the other ends of the two cables 354 are each connected to a discharge clamp 351. The two cables 354 on the same heating wire 352 are suspended in pairs on a wire hanging rod 36, which is fixed horizontally to the side of the water tank frame 31. The two discharge clamps 351 are respectively clamped onto the positive and negative tabs of the used lithium battery 5 to be discharged. The used lithium battery 5, discharge clamps 351, cables 354, and heating wire 352 form a discharge circuit. After discharge is completed, the discharge clamps 351 can be removed and hung between the conveyor belt 23 and the discharge water tank 33.

[0032] In this embodiment of the present invention, each heating wire 352 is spirally wound and fixed to an insulating plate 353. It can be arranged in a single layer, multiple layers, or an array. Each heating wire 352 is independent and non-contacting, completely immersed in the cold water of the discharge tank 33. It also does not come into contact with the bottom or inner walls of the discharge tank 33, allowing it to dissipate heat generated during discharge and avoid safety hazards caused by overheating. A water level sensor can be installed in the discharge tank 33 to ensure that the heating wires 352 remain immersed in cold water. When the water level reaches a set upper limit in the discharge tank 33, the water valve automatically closes. When the water level reaches a set lower limit, the water valve automatically opens.

[0033] See also Figure 2A and Figure 2BIn a specific embodiment of the present invention, the manipulator 1 includes a support base 11, a rotating mechanism 12, a rocker mechanism 13 and an actuator 14. The lower end of the support base 11 is fixed to the ground and is located at both ends of the entire device. The rotating mechanism 12 is fixed on the top of the support base 11. The rotating mechanism 12 includes a first motor 121 and a turntable 122, which is fixed on the support base 11 through a fixed base 123. The turntable 122 can rotate 360 degrees in the horizontal direction under the drive of the first motor 121; the rocker mechanism 13 is fixedly connected to the turntable 122 and rotates with the turntable 122. The rocker mechanism 13 includes a second motor 131, a first swing arm 132, a third motor 133 and a second swing arm 134. The second motor 131 is fixed on the turntable 122. The lower end of the first swing arm 132 is connected to the output end of the second motor 131 and can be rotated 360 degrees in the first swing arm 134. The second swing arm 134 is driven to rotate by the second motor 131, the third motor 133 is fixed to the upper end of the first swing arm 132, and one end of the second swing arm 134 is connected to the output end of the third motor 133. The third motor 133 drives the second swing arm 134 to rotate, and the second swing arm 134 can rotate under the drive of the first swing arm 132; the other end of the second swing arm 134 is connected to the actuator 14, and the actuator 14 includes a fourth motor 141, a cylinder 142 and a clamp 143. The fourth motor 141 is fixed to the other end of the second swing arm 134, and the output end of the fourth motor 141 is connected to the cylinder 142. The clamp 143 is connected to the cylinder 142. Both sides of the clamp 143 are movable ends, which can be opened and clamped under the action of the cylinder 142. Sharp edges are provided outwardly at both ends of the clamp 143 for separating and clamping neatly arranged waste lithium batteries 5. In this way, the clamp 143 can rotate 360 degrees horizontally with the turntable 122 and can also swing with the first swing arm 132 and the second swing arm 134, making it easier to take out the used lithium battery 5. A CCD 4 is provided above the manipulator 1, and the CCD 4 includes a camera system for taking a picture of the used lithium battery 5 to be taken and positioning it.

[0034] Working process of the embodiment of the utility model:

[0035] (1) The operator prepares the waste lithium batteries 5 to be discharged in the loading area A, and uses a forklift to place the loading area pallet 7 and the waste lithium batteries 5 in the pallet position frame set in the loading area A;

[0036] (2) After preparation, the manipulator 1 of the loading area A moves, and uses the clamp 143 to pick up the waste lithium batteries 5 on the loading area card plate 6 in order and put them into the starting position of the conveyor belt 23. After the waste lithium batteries 5 are placed in the first frame surrounded by the partition 25 and the skirt 24, the servo motor 221 is started, and the driving wheel 222 and the driven wheel 223 drive the conveyor belt 23 to move. When the conveyor belt 23 moves forward the distance of one frame, the manipulator 1 continues to load materials, and the cycle continues until the entire conveyor belt 23 is filled with waste lithium batteries 5, and the equipment pauses;

[0037] (3) Manually clamp the pair of discharge clips 351 on the hanging rod 36 onto the positive electrode tab and the negative electrode tab of the waste lithium battery 5 to be discharged in the frame, and the waste lithium battery 5 begins to discharge;

[0038] (4) After standing for a while and confirming that the discharge is complete, manually loosen all the discharge clamps 351;

[0039] (5) The robot 1 in the unloading area B moves to clamp the waste lithium batteries 5 in the last frame on the conveyor belt 23 and place them on the unloading area card plate 7. When the waste lithium batteries 5 in the frame are unloaded, the servo motor 221 is started, and the conveyor belt 23 moves forward the distance of one frame, so that the waste lithium batteries 5 in the next frame are moved to the end of the conveyor belt 23. The robot 1 in the unloading area B continues to unload, and the cycle continues until all the waste lithium batteries 5 are unloaded, and a large-scale discharge is completed.

[0040] The above embodiments of the present invention are only part of the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made by those skilled in the art without departing from the essence of the present invention are within the scope of protection of the present invention.

Claims

1. A linear waste lithium battery discharge device, characterized in that: It includes a moving mechanism, a discharge component and a manipulator, the moving mechanism includes multiple partitions and a conveyor belt for driving each of the partitions to move in a straight line, the conveyor belt has skirts on both sides, the partitions are arranged at equal intervals on the conveyor belt, and together with the skirts form multiple frame structures that can be loaded with waste lithium batteries; the discharge component includes a discharge trough and multiple discharge units, the discharge trough is a linear trough for storing cold water for heat dissipation, and is arranged parallel to the side ends along the length direction of the conveyor belt; each of the discharge units includes a heating wire and a discharge clamp arranged in pairs for respectively clamping the positive and negative pole ears of the waste lithium battery to be discharged, the two discharge clamps are respectively connected to the two ends of the heating wire through two cables, and the heating wire is immersed in the cold water in the heat dissipation trough; two manipulators are provided, which are respectively located in the loading area and the unloading area of the conveyor belt.

2. The linear waste lithium battery discharge device according to claim 1, characterized in that: The skirt is extended upward along both sides of the conveyor belt in the length direction, and the skirt is formed into a long strip by alternately intersecting a plurality of semicircular arc segments and a plurality of straight line segments.

3. The linear waste lithium battery discharge device according to claim 1, characterized in that: The moving mechanism also includes a driving component, which is fixed on the conveyor belt frame and includes a servo motor, a driving wheel connected to the output end of the servo motor, and a driven wheel spaced apart from the driving wheel. The conveyor belt is sleeved on the driving wheel and the driven wheel and moves in coordination with the driving wheel and the driven wheel.

4. The linear waste lithium battery discharge device according to claim 1, characterized in that: The discharge water troughs are installed on the water trough frame and are arranged along the length direction of the conveyor belt, parallel to the side ends and at intervals.

5. The linear waste lithium battery discharge device according to claim 4, characterized in that: The discharge water tank is upwardly provided with an opening, a cover plate is provided on the top of the opening, and an exhaust pipe for connecting a pipeline and an exhaust fan is provided on the cover plate.

6. The linear waste lithium battery discharge device according to claim 4, characterized in that: Two cables connected to the two ends of the heating wire are hung in pairs on a wire hanging rod, and the wire hanging rod is fixed to the side end of the water tank frame.

7. The linear waste lithium battery discharge device according to any one of claims 1 to 6, characterized in that: Each heating wire is in a single layer or multiple layers and is fixed on an insulating plate in an array. The insulating plate is placed in the discharge water tank.

8. The linear waste lithium battery discharge device according to claim 7, characterized in that: The heating wire is spirally wound.

9. The linear waste lithium battery discharge device according to any one of claims 1 to 6, characterized in that: The manipulator includes a support base, a rotating mechanism, a rocker mechanism and an actuator. The lower end of the support base is fixed to the ground. The rotating mechanism includes a first motor and a turntable, which are fixed to the support base through a fixed base; the rocker mechanism includes a second motor, a first swing arm, a third motor and a second swing arm. The second motor is fixed on the turntable, the lower end of the first swing arm is connected to the output end of the second motor, the third motor is fixed to the upper end of the first swing arm, and one end of the second swing arm is connected to the output end of the third motor; the actuator includes a fourth motor, a cylinder and a clamp. The fourth motor is fixed to the other end of the second swing arm, the output end of the fourth motor is connected to the cylinder, and the clamp is connected to the cylinder.

10. The linear waste lithium battery discharge device according to claim 9, characterized in that: It is characterized by: Both ends of the clamp are provided with sharp edges facing outwards.

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