Collecting mechanism for recycling copper powder of lithium battery

Abstract

The invention discloses a material collecting mechanism for recycling lithium battery copper powder, and relates to the field of screening equipment, the material collecting mechanism comprises a material collecting box body, a material guiding shell is arranged on the material collecting box body, a grinding chamber and a grinding roller are arranged below the material guiding shell, an air pipe is installed on the side wall of the grinding chamber, a fan is installed outside the material collecting box body, and the fan communicates with the air pipe; a material distributing plate is installed on the lower portion of the grinding cavity, and screening mechanisms are arranged on the two sides of the material distributing plate correspondingly. The screening mechanism comprises screening plates, a mesh screen is arranged on the lower portion of the first screening plate, a material guide plate is arranged on the lower portion of the mesh screen, the screening mechanism further comprises a power swing assembly, and one end of the power swing assembly is connected with the grinding roller. And meanwhile, waste attached to the surface of the aluminum material can be dispersed, and mixed strip-shaped plastic and other impurities can be isolated through screening of the first layer of screening plate.

Description

Technical Field

[0001] The present invention relates to the technical field of screening equipment, and specifically relates to an aggregate mechanism for recycling copper powder of lithium batteries. Background Art

[0002] As a modern energy battery, lithium batteries play a crucial role. The recycling of waste lithium batteries is of great importance. On the one hand, it can avoid the pollution of the environment caused by lithium batteries. On the other hand, the materials inside the lithium batteries need to be recycled, such as metal materials like copper and aluminum in the batteries.

[0003] When recycling and treating waste lithium batteries, first, the collected waste lithium batteries are put into a crushing device for crushing treatment. Then, materials such as plastics and graphite on the surface are filtered. When screening metal materials such as copper and aluminum, a specific gravity machine is used for recycling treatment. However, when recycling and treating lithium batteries, during the initial crushing of lithium batteries, the surface debris and graphite are also crushed. Some are crushed into strip or block mixtures together with copper and aluminum. Most of the surface plastics and graphite materials are screened out during the crushing process, but the mixed strips or blocks enter the specific gravity separation device. The specific gravity separator screens according to the different specific gravities of copper and aluminum. When combined with the surface of aluminum blocks after mixing, they are easily mixed and screened into the copper powder together. After screening, the copper powder still contains crushed mixtures and aluminum. Moreover, after the lithium batteries are crushed and sorted by a specific gravity machine, due to the different sizes of the crushed materials, it is easy to mix copper materials of different sizes and copper materials mixed with other materials such as aluminum during specific gravity separation. For this reason, we propose an aggregate mechanism for recycling copper powder of lithium batteries. Summary of the Invention

[0004] The purpose of the present invention is to provide an aggregate mechanism for recycling copper powder of lithium batteries to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An aggregate mechanism for recycling copper powder of lithium batteries, including an aggregate box body. A material guiding shell is provided on the aggregate box body. A grinding chamber is arranged below the material guiding shell, and grinding rollers are distributed in the grinding chamber. Spherical grinding rods are distributed on the grinding rollers. An air duct is installed on the side wall of the grinding chamber. A blower is installed outside the aggregate box body, and the blower is communicated with the air duct. A material distributing plate is installed at the lower part of the grinding chamber. The material distributing plate is a folding plate with an obtuse angle at the top, and the slopes of the two side folding plates are different. Screening mechanisms are respectively arranged on both sides of the material distributing plate. The screening mechanism includes a sieve plate. A plurality of round holes are opened on the sieve plate. A mesh screen is arranged below the first sieve plate. A material guiding plate is arranged below the mesh screen. The sieve plate, the mesh screen, and the material guiding plate are all inclined. The screening mechanism further includes a power swing assembly. The power swing assembly is installed at the lower part of the aggregate box body, and one end of the power swing assembly is connected to the grinding roller.

[0006] Preferably, the aggregate box body includes a bottom frame body, and a plurality of support columns are installed below the bottom frame body. A shell is provided on the top of the bottom frame body, and both ends of the shell are inclined discharge ports. The top of the shell is a cover plate, and a material guiding shell is installed on the cover plate. The side wall of the bottom frame body is connected to the outer wall of the shell through an assembly block.

[0007] Preferably, the screening mechanism further includes a fixed frame. The side walls of the sieve plate and the mesh sieve are installed on the fixed frame, and a material guiding plate is installed below the fixed frame. The fixed frame is inclinedly distributed, and shock-absorbing rods are respectively installed on both sides of the fixed frame. A buffer sleeve for receiving the shock-absorbing rods is installed on the bottom frame body. A shock-absorbing spring is sleeved between the shock-absorbing rod and the buffer sleeve. Installation blocks are installed on both the side wall of the fixed frame and the bottom frame body. A plurality of tension springs are provided between the side wall of the fixed frame and the bottom frame body. The tension springs are inclinedly distributed, and both ends of the tension springs are connected to the installation blocks.

[0008] Preferably, the power swing assembly includes a double-headed motor installed on the bottom frame body. A driving gear is installed on the output shaft of the double-headed motor, and semi-gears are symmetrically engaged outside the driving gear. A rotating shaft connected to the side wall of the bottom frame body is provided on the semi-gear. A winding sleeve is installed on the rotating shaft, and a pulling rope is wound in the winding sleeve. One end of the pulling rope is connected to a pull rod, and the pull rod is connected to the outside of the shock-absorbing rod.

[0009] Preferably, one end of the grinding roller is connected to a driven gear. A rotating shaft is installed on the shell, and a driving gear meshing with the driven gear is connected to the rotating shaft. Flywheels are sleeved on both the rotating shaft and the output shaft of the double-headed motor, and the two flywheels are driven by a belt.

[0010] Preferably, a plurality of elastic rods are connected to both sides of the grinding chamber. A support plate is provided at the bottom of the material distributing plate, and both sides of the support plate are connected to the elastic rods. The support plate has shrinkability.

[0011] Preferably, discharge ports are formed on the outer walls at both ends of the grinding chamber.

[0012] Preferably, the pipe orifice of the air duct is inclined towards the middle position between the two grinding rollers.

[0013] Preferably, a plurality of telescopic rods are installed below the material guiding plate, and a connecting plate is installed at the bottom of the telescopic rods. The connecting plate is connected to the bottom frame body through a connecting column.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The present invention grinds the waste of lithium batteries into spherical materials by setting grinding rollers with spherical grinding rods. Under the blowing action of the air duct with an upward distribution trend, it is beneficial to disperse the spherical materials, disperse them to the position of the material distribution plate according to different weights, and at the same time, it is also beneficial to disperse the waste adhered to the surface of the aluminum material, thus effectively avoiding the situation that aluminum materials are mixed with other wastes and enter the copper materials during the treatment of lithium battery waste. At the same time, it involves a power swing assembly to screen the materials after the screening mechanism distributes the materials. Through the screening of the first-layer sieve plate, it is beneficial to isolate the mixed strip-shaped plastics and other miscellaneous materials. Through the second-layer mesh screen, the qualified copper materials and aluminum materials are screened, which is beneficial to the recovery of copper powder in lithium batteries.

[0015] The present invention designs a plurality of round holes at the sieve plate to facilitate the passage of the processed spherical copper materials, and further facilitate the screening of other sundries mixed in the copper materials.

[0016] The present invention inclines the air duct towards the tangent position of the two grinding rollers, so that after the grinding rollers grind the copper materials into spherical materials, the materials can be blown up, thus achieving the effect of surface separation of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the back structure of the present invention; Figure 3 is a schematic diagram of the structure after opening the housing of the present invention; Figure 4 is a schematic diagram of the structure at the grinding chamber and screening mechanism of the present invention; Figure 5 is a schematic diagram of the structure at the grinding rollers and swing assembly of the present invention; Figure 6 is a schematic diagram of the structure at the screening mechanism of the present invention; Figure 7 is of the present invention Figure 6 schematic diagram of the structure after removing the bottom frame; Figure 8 is a schematic diagram of the sequential assembly structure of the sieve plate, mesh screen and guide plate; Figure 9 is a schematic diagram of the structure at the grinding chamber of the present invention; Figure 10 Schematic diagram of the partial cross-section after the shock-absorbing rod and buffer sleeve are combined; Figure 11 is Figure 5 enlarged schematic diagram of area A in ; Figure 12 is Figure 7 enlarged schematic diagram of area B in ; Figure 13 It is a schematic structural diagram of the material distribution pipe.

[0018] In the figure: 1 - aggregate box; 2 - grinding chamber; 3 - grinding roller; 4 - air duct; 5 - fan; 6 - material distribution plate; 7 - screening mechanism; 8 - power swing assembly; 11 - material guiding shell; 12 - bottom frame; 13 - support column; 14 - shell; 15 - cover plate; 16 - assembly block; 21 - elastic rod; 22 - support plate; 23 - discharge port; 31 - spherical grinding rod; 32 - driven gear; 33 - driving gear; 34 - flywheel; 35 - belt; 36 - rotating shaft; 37 - grinding plate; 41 - material distribution body; 42 - material distribution pipe; 43 - air blowing port; 44 - material leakage port; 71 - sieve plate; 72 - round hole; 73 - screen; 74 - material guiding plate; 75 - fixed frame; 76 - shock-absorbing rod; 77 - buffer sleeve; 78 - shock-absorbing spring; 79 - tension spring; 81 - double-headed motor; 82 - driving gear; 83 - half gear; 84 - rotating shaft; 85 - winding sleeve; 86 - pulling rope; 87 - pull rod; 741 - telescopic rod; 742 - connecting plate; 743 - connecting column. Detailed implementation manners

[0019] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1-13 , the present invention provides a technical solution: an aggregate mechanism for recycling copper powder of lithium batteries, used to solve the problem that the existing recycling treatment of copper, aluminum, etc. in lithium batteries is not clean enough. The design includes an aggregate box 1, and the aggregate box 1 includes a bottom frame 12. The bottom frame 12 is a rectangular structure as a whole, and its internal is a cavity structure. Two plates are welded at the top position of the bottom frame 12, and the two plates are respectively distributed on both sides. Moreover, a plurality of support columns 13 are installed at the lower part of the bottom frame 12. The bottom of the support column 13 is a rectangular stable plate, or can also be designed as a disc shape, mainly used for the stable support of the entire equipment and the shock-absorbing effect on the ground. A shell 14 is provided at the top of the bottom frame 12, and both ends of the shell 14 are inclined discharge ports 23. The design of the shell 14 is as shown in the attached Figure 1 and the attached Figure 2 . Seen from the front, it is trapezoidal, that is, both sides have inclined slopes. The top of the shell 14 is a cover plate 15, and a material guiding shell 11 is installed on the cover plate 15. The side wall of the bottom frame 12 and the outer wall of the shell 14 are connected through an assembly block 16. The assembly block 16 is installed through fixing parts such as bolts and screws, and can also be assembled by welding.

[0021] A material guiding shell 11 is provided on the aggregate box body 1. The whole material guiding shell 11 is funnel-shaped, and grooves are formed on its outer surface. A pipeline or the like is sleeved at the groove position, and then the feeding pipeline is installed at the upper inlet position of the material guiding shell 11 by means of a locking buckle or a flange plate installation method. After the lithium battery undergoes preliminary crushing treatment, the crushed lithium battery waste is conveyed to the inlet position of the material guiding shell 11 through a conveying device.

[0022] In order to reprocess the conveyed crushed lithium battery waste and grind it into spherical materials, a grinding chamber 2 is provided below the material guiding shell 11. The grinding chamber 2 is as shown in the appendix Figure 9 and is integrally in an inverted T shape. A plurality of elastic rods 21 are connected to both sides of the grinding chamber 2. A support plate 22 is provided at the bottom of the material distributing plate 6, and both sides of the support plate 22 are connected to the elastic rods 21. The support plate 22 has shrinkability. Discharge ports 23 are formed in the outer walls at both ends of the grinding chamber 2. Grinding rollers 3 are distributed in the grinding chamber 2, and spherical grinding rods 31 are distributed on the grinding rollers 3. The spherical grinding rods 31 are staggered on the grinding rollers 3. After an external power output acts on the grinding rollers 3, a pair of grinding rollers 3 rotate clockwise and mesh simultaneously. The staggered spherical grinding rods 31 grind the material. Spherical grinding rods 31 are distributed on one grinding roller 3, and a grinding plate 37 is distributed on the other grinding roller 3. Groove holes corresponding to the spherical grinding rods 31 are provided on the grinding plate 37. Since there is a large amount of copper and aluminum materials and they are ductile, the crushed copper and aluminum are pressed together. When the external power drives the grinding rollers 3 to rotate counterclockwise and mesh, the pressed material is turned up again until the pressed material is pressed into spherical materials and can leak out from the groove holes of the grinding plate 37.

[0023] In order to facilitate the separation of the materials after the pressing process, an air duct 4 is installed on the side wall of the grinding chamber 2, and a fan 5 is installed outside the collecting box 1, and the submachine is connected to the air duct 4. The air duct 4 is tilted toward the tangent line of the two grinding rollers 3. After the air blown by the submachine 5 passes through the air duct 4, the ground spherical materials leaked from the two grinding rollers 3 can be separated. A material separator 41 is provided in the grinding chamber 2, and the two sides of the material separator 41 are inclined plates, and the middle part is aligned with the grinding position of the two grinding rollers 3. , and the two sides of the material distribution body 41 are connected to the inner wall of the grinding chamber 2, and a material distribution pipe 42 is arranged inside the material distribution body 41. The material distribution pipe 42 is the same as the air pipe 4. A plurality of air blowing ports 43 are arranged on the material distribution pipe 42. A symmetrical inclined plate is arranged on the outer side of the material distribution pipe 42. A diaphragm is arranged on the air blowing port 43. A material leakage port 44 is arranged at the bottom of the material distribution body 41. The wind blown by the fan 5 is blown out from the air blowing port 43, so as to blow up the leaked spherical material, and the material is blown along the inclined plates on both sides of the material distribution pipe 42 to the inclined plate of the material distribution body 41. Due to copper (density 8.96 g / cm³) and aluminum (2.7 g / cm³), graphite powder (about 2.2 g / cm³) and other materials have significant density differences. After being ground into spherical materials of the same volume, the gravity of aluminum, graphite powder and plastic is smaller than that of copper. Therefore, after air is introduced into the air duct 4, the lighter materials such as aluminum, graphite powder and plastic can be blown up, and the copper falls first. The copper material leaks out from the leaking port 44 first, so that the copper can be quickly separated.

[0024] After copper and aluminum fall alternately, in order to quickly guide copper out, a dividing plate 6 is installed at the lower part of the grinding chamber 2. The dividing plate 6 is a folding plate with an obtuse top and different slopes on both sides. The angle of the slope for guiding copper is greater than that of the slope for guiding aluminum. In this way, the length of the slope for guiding copper is short and the slope is steep, so that the heavier copper can be separated quickly. As for aluminum and other materials, they enter the side of the slope with a long slope and a gentle slope. In order to screen the separated aluminum and copper, screening mechanisms 7 are provided on both sides of the dividing plate 6; the screening mechanism 7 includes a screen plate 71, a plurality of circular holes 72 are opened on the screen plate 71, and a mesh screen 73 is provided at the lower part of the first screen plate 71, and a guide plate 74 is provided at the lower part of the mesh screen 73, so that the strip-shaped or other shaped materials mixed in the copper or aluminum can be separated at the first layer, and after passing through the mesh screen 73 of the second layer, the copper powder that meets the requirements can be screened out to the guide plate 74 for aggregation, and the copper powder that does not meet the requirements and remains on the mesh screen 73 of the second layer and the screen plate 71 of the first layer is recycled and reprocessed to achieve multi-layer screening, thereby improving the copper powder screening effect, the screen plate 71, the mesh screen 73 and the guide plate 74 are all inclinedly distributed, and the screening mechanism 7 also includes a power swing assembly 8, which is installed at the lower part of the aggregation box 1, and one end of the power swing assembly 8 is connected to the grinding roller 3.

[0025] The screening mechanism 7 further includes a fixed frame 75. The side walls of the sieve plate 71 and the mesh sieve 73 are mounted on the fixed frame 75, and the material guiding plate 74 is mounted on the lower part of the fixed frame 75. The fixed frame 75 is inclined, and shock-absorbing rods 76 are respectively mounted on both sides of the fixed frame 75. A buffer sleeve 77 for receiving the shock-absorbing rod 76 is mounted on the bottom frame body 12. A shock-absorbing spring 78 is sleeved between the shock-absorbing rod 76 and the buffer sleeve 77. Mounting blocks are mounted on both the side wall of the fixed frame 75 and the bottom frame body 12. A plurality of tension springs 79 are provided between the side wall of the fixed frame 75 and the bottom frame body 12. The tension springs 79 are inclined, and both ends of the tension springs 79 are connected to the mounting blocks. A plurality of telescopic rods 741 are mounted on the lower part of the material guiding plate 74, and a connecting plate 742 is mounted at the bottom of the telescopic rods 741. The connecting plate 742 and the bottom frame body 12 are connected by a connecting column 743.

[0026] The power swing assembly 8 includes a double-headed motor 81 mounted on the bottom frame body 12. A driving gear 82 is mounted on the output shaft of the double-headed motor 81, and half gears 83 are symmetrically engaged outside the driving gear 82. A rotating shaft 84 connected to the side wall of the bottom frame body 12 is provided on the half gear 83. A winding sleeve 85 is mounted on the rotating shaft 84, and a pull rope 86 is wound in the winding sleeve 85. One end of the pull rope 86 is connected to a pull rod 87, and the pull rod 87 is connected to the outside of the shock-absorbing rod 76.

[0027] One end of the grinding roller 3 is connected to a driven gear 32. A rotating shaft 36 is mounted on the housing 14, and a driving gear 33 meshing with the driven gear 32 is connected to the rotating shaft 36. Flywheels 34 are sleeved on both the rotating shaft 36 and the output shaft of the double-headed motor 81, and the two flywheels 34 are driven by a belt 35.

[0028] During use, the crushed lithium battery waste is introduced into the inlet position of the material guiding shell 11. By setting the double-headed motor 81 to rotate clockwise and counterclockwise at regular intervals. In this way, since one output shaft of the double-headed motor 81 drives the rotating shaft 36 to rotate through the flywheel 34 and the belt 35, when the rotating shaft 36 rotates counterclockwise, the two driven gears 32 rotate clockwise to grind and press the material. When the rotating shaft 36 rotates clockwise, the two driven gears 32 rotate counterclockwise, and the two grinding rollers 3 rotate counterclockwise, so as to facilitate turning up the pressed material and letting it fall back for grinding again. The spherical grinding rod 31 acts on the material to the groove of the grinding plate 37 until the pressed material is pressed into spherical material and can leak out from the gap between two adjacent spherical grinding rods. Since there are significant density differences between copper (density 8.96 g / cm³) and materials such as aluminum (2.7 g / cm³) and graphite powder (about 2.2 g / cm³), after being ground into spherical materials of the same volume, the gravity of aluminum, graphite powder and plastic is less than that of copper. So after the air pipe 4 passes air, the lighter materials such as aluminum, graphite powder and plastic can be blown up, and copper falls first, so that copper can be quickly separated. After copper and aluminum fall alternately, in order to quickly export copper, a material dividing plate 6 is installed at the lower part of the grinding chamber 2. The material dividing plate 6 is a folding plate with an obtuse angle at the top, and the slopes of the two side folding plates are different. The slope for guiding copper is greater than the slope for guiding aluminum. In this way, the length of the slope for guiding copper is short and the slope is steep, so that the heavier copper can be quickly separated, and materials such as aluminum enter the side with a long slope and a gentle slope.

[0029] After the double-headed motor 81 drives the driving gear 82 to rotate, the semi-gear 83 rotates clockwise or counterclockwise, so that the winding sleeve 85 winds or releases the pull rope 86. Since the pull rope 86 is installed outside the shock-absorbing rod 76 through the pull rod 87, the shock-absorbing rod 7 is pulled to move into the buffer sleeve 77. Because a shock-absorbing spring 78 is sleeved between the shock-absorbing rod 76 and the buffer sleeve 77, the fixed frame 75 shakes up and down. And because the fixed frame 75 is inclined, it is convenient to guide the discharge during the material screening process. A plurality of round holes 72 are opened on the sieve plate 71, and a mesh sieve 73 is arranged below the first sieve plate 71. A material guiding plate 74 is arranged below the mesh sieve 73. In this way, strip-shaped or other-shaped materials mixed in copper or aluminum can be separated at the first layer. After passing through the mesh sieve 73 of the second layer, the copper powder that meets the requirements can be screened out to the material guiding plate 74 for aggregation, while the materials that do not meet the requirements are left on the mesh sieve 73 of the second layer and the sieve plate 71 of the first layer. Through the way of recycling and reprocessing, multi-layer screening is achieved, so as to improve the screening effect of copper powder.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0031] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A material collection mechanism for recycling lithium battery copper powder, comprising a material collection box (1), the material collection box (1) being provided with a material guide shell (11), characterized in that: A grinding chamber (2) is arranged below the material guide shell (11), and a pair of grinding rollers (3) are arranged in the grinding chamber (2), one of the grinding rollers (3) is arranged with a spherical grinding rod (31), the other grinding roller (3) is arranged with a grinding plate (37), and the grinding plate (37) is provided with a slot corresponding to the spherical grinding rod (31), a side wall of the grinding chamber (2) is provided with an air duct (4), a fan (5) is arranged outside the material collection box (1), and the fan (5) is connected to the air duct (4), a material distribution plate (6) is arranged at the bottom of the grinding chamber (2), the material distribution plate (6) is a folded plate with an obtuse top, and the folded plates on both sides have different slopes, and screening mechanisms (7) are respectively arranged on both sides of the material distribution plate (6); The screening mechanism (7) comprises a screen plate (71), a plurality of circular holes (72) are formed on the screen plate (71), a mesh screen (73) is provided at the lower part of the first screen plate (71), a material guide plate (74) is provided at the lower part of the mesh screen (73), and the screen plate (71), the mesh screen (73) and the material guide plate (74) are all distributed in an inclined manner. The screening mechanism (7) further comprises a power swing assembly (8), the power swing assembly (8) is installed at the lower part of the aggregate box (1), and one end of the power swing assembly (8) is connected to the grinding roller (3).

2. A collection mechanism for recovering lithium battery copper powder according to claim 1, characterized in that: The material collecting box (1) comprises a bottom frame (12), and a plurality of support columns (13) are installed at the bottom of the bottom frame (12); a shell (14) is provided at the top of the bottom frame (12), and both ends of the shell (14) are inclined discharge ports (23); a cover plate (15) is provided at the top of the shell (14), and a material guide shell (11) is installed on the cover plate (15); a side wall of the bottom frame (12) and an outer wall of the shell (14) are connected by an assembly block (11); 6), a material distribution body (41) is provided in the grinding chamber (2), and the two sides of the material distribution body (41) are connected to the inner wall of the grinding chamber (2), a material distribution pipe (42) is provided inside the material distribution body (41), the material distribution pipe (42) is the same as the air pipe (4), a plurality of air blowing ports (43) are provided on the material distribution pipe (42), symmetrical inclined plates are provided on the outer side of the material distribution pipe (42), a diaphragm is provided on the air blowing port (43), and a material leakage port (44) is provided at the bottom of the material distribution body (41).

3. A collection mechanism for recovering lithium battery copper powder according to claim 2, characterized in that: The screening mechanism (7) further comprises a fixed frame (75), the side walls of the sieve plate (71) and the mesh screen (73) are mounted on the fixed frame (75), and the guide plate (74) is mounted on the lower part of the fixed frame (75), the fixed frame (75) is arranged in an inclined manner, and shock absorbing rods (76) are respectively mounted on both sides of the fixed frame (75), a buffer sleeve (77) for receiving the shock absorbing rod (76) is mounted on the bottom frame (12), a shock absorbing spring (78) is sleeved between the shock absorbing rod (76) and the buffer sleeve (77), mounting blocks are mounted on the side walls of the fixed frame (75) and the bottom frame (12), and a plurality of tension springs (79) are arranged between the side walls of the fixed frame (75) and the bottom frame (12), the tension springs (79) are arranged in an inclined manner, and both ends of the tension springs (79) are connected to the mounting blocks.

4. A collection mechanism for recovering lithium battery copper powder according to claim 3, characterized in that: The power swing assembly (8) comprises a double-headed motor (81) mounted on the bottom frame (12), a driving gear (82) being mounted on the output shaft of the double-headed motor (81), and a half gear (83) being symmetrically meshed on the outer side of the driving gear (82), a rotating shaft (84) being provided on the half gear (83) and being connected to the side wall of the bottom frame (12), a winding sleeve (85) being mounted on the rotating shaft (84), and a pull rope (86) being wound in the winding sleeve (85), one end of the pull rope (86) being connected to a pull rod (87), and the pull rod (87) being connected to the outer side of the shock absorbing rod (76).

5. A collection mechanism for recovering lithium battery copper powder according to claim 4, characterized in that: One end of the grinding roller (3) is connected to a driven gear (32), the housing (14) is mounted with a rotating shaft (36), and the rotating shaft (36) is connected to a driving gear (33) that meshes with the driven gear (32), and the rotating shaft (36) and the output shaft of the double-headed motor (81) are both sleeved with flywheels (34), and the two flywheels (34) are driven by belts (35).

6. A collection mechanism for recovering lithium battery copper powder according to claim 1, characterized in that: A plurality of elastic rods (21) are connected to both sides of the grinding chamber (2); a support plate (22) is provided at the bottom of the material dividing plate (6); and both sides of the support plate (22) are connected to the elastic rods (21); the support plate (22) is retractable.

7. A collection mechanism for recovering lithium battery copper powder according to claim 5, characterized in that: Outlets (23) are provided on the outer walls at both ends of the grinding chamber (2).

8. A collection mechanism for recovering lithium battery copper powder according to claim 1, characterized in that: The opening of the air duct (4) is inclined toward the middle position between the two grinding rollers (3).

9. A collection mechanism for recovering lithium battery copper powder according to claim 2, characterized in that: A plurality of telescopic rods (741) are installed at the lower part of the guide plate (74), and a connecting plate (742) is installed at the bottom of the telescopic rod (741), and the connecting plate (742) is connected to the bottom frame (12) via a connecting column (743).

Images