A raw material ball milling equipment for lithium battery production

Abstract

The invention discloses a raw material ball milling equipment for lithium battery production, comprising a frame and a drum rotatably connected in the frame; support mechanisms for supporting and fixing are symmetrically arranged at both ends of the drum, and a separation component is fixedly connected between the two support mechanisms via a U-shaped plate, and the separation component is used for separating and unloading the grinding material from the grinding balls. In the invention, the grinding material and the grinding balls in the drum are located at one end of the drum during the rotation process, and two baffles are located at both sides of the grinding material and the grinding balls, so that the grinding balls in the grinding material roll under the drive of the drum, and the baffles are squeezed when the grinding balls collide with the baffles arranged at a high position, and after the baffles are squeezed, the baffles arranged at the other end at the bottom are driven to move through the sliding rod, so that the baffles located at the lower position squeeze the grinding balls at one end, so that the grinding balls located at the lower position of the drum are squeezed into the grinding material, unnecessary friction movement of the grinding balls is reduced, and the grinding efficiency of the grinding balls is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production equipment, and in particular to a raw material ball milling equipment for lithium battery production. Background Art

[0002] Lithium battery is a kind of battery that uses lithium metal or lithium alloy as negative electrode material and non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Lithium batteries have not been used for a long time. With the development of science and technology, lithium batteries have now become mainstream. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. Lithium batteries need to use a ball mill to process raw materials during production. Ball mill, also known as ball mill, is a common equipment for grinding or grinding.

[0003] For example, the Chinese patent with publication number CN112588406B and titled "A ball milling device for raw materials for lithium battery production" includes a mounting plate, a shaking groove is provided on the top of the mounting plate, a shaking plate is slidably connected in the shaking groove, two bases are fixedly installed on the top of the shaking plate, and the same control seat is fixedly installed on the top of the two bases, and a control groove is provided on the top of the control seat. The present invention has a reasonable structure and is easy to operate. The ball milling device is convenient for screening finished products while ball milling, and there is no need to stop the machine for inspection repeatedly, which saves time and effort. The grinding balls in the ball mill are convenient to be quickly separated from the raw materials, which improves the processing efficiency.

[0004] The shortcoming of the existing technology is that, due to the small friction between the grinding material and the grinding balls during the fine grinding of lithium batteries, the grinding balls cannot efficiently penetrate into the grinding material during the rotation of the drum, resulting in unnecessary friction between the grinding balls and the grinding material and the drum, affecting the grinding efficiency of the grinding balls on the grinding material. Summary of the invention

[0005] The object of the present invention is to provide a raw material ball milling equipment for lithium battery production, in which the grinding material and the grinding balls in the drum are located at one end of the drum during rotation, and two baffles are located on both sides of the grinding material and the grinding balls, so that the grinding balls in the grinding material roll under the drive of the drum, and when the grinding balls collide with the baffle arranged at a high position, the baffle is squeezed, and after the baffle is squeezed, the baffle arranged at the other end at the bottom is driven by a sliding rod to move, so that the baffle located at the lower position squeezes the grinding balls at one end, so that the grinding balls located at the lower position of the drum are squeezed into the grinding material, the unnecessary friction movement of the grinding balls is reduced, and the grinding efficiency of the grinding balls is improved.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a raw material ball milling device for lithium battery production, comprising a frame and a roller rotatably connected in the frame;

[0007] The two ends of the drum are symmetrically provided with supporting mechanisms for support and fixation, and a separation component is fixedly connected between the two supporting mechanisms through a U-shaped plate, and the separation component is used to separate the ground material from the grinding balls and discharge the materials; the separation component includes a support frame, and the two ends of the support frame are fixedly connected with baffles in a symmetrical structure through sliding rods, and a separation net is provided between the two baffles, and the separation net drives the support frame to rotate along the central axis of the drum through a servo motor, so that the separation net separates the ground material from the grinding balls, and a material guide component is movably provided in the support frame, and the material guide component drives the support frame to rotate along the central axis of the drum to the discharge port at the bottom of the drum through the servo motor, and by adjusting the servo motor to a reciprocating state, the material guide component guides the ground material in the drum to the discharge port for discharge;

[0008] As a further description of the above technical solution:

[0009] The frame comprises supporting legs, and the supporting legs are arranged at two ends of the drum, and a stabilizing rod is fixedly connected between the two supporting legs.

[0010] As a further description of the above technical solution:

[0011] One end of the servo motor is fixedly connected to a connecting seat, and one end of the connecting seat is fixedly connected to a U-shaped plate.

[0012] As a further description of the above technical solution:

[0013] The support mechanism comprises a fixed ring, one end of which is provided with a limiting wheel array, and the limiting wheel is in contact with the outer wall of the drum, one end of the fixed ring is fixedly connected to a connecting column, and one end of the connecting column is fixedly connected to a supporting leg.

[0014] As a further description of the above technical solution:

[0015] A U-shaped plate 43 is fixedly connected at both ends of the support frame, a U-shaped ring is fixedly connected to one end of the U-shaped plate away from the support frame, a connecting block is fixedly connected inside the U-shaped ring, reset springs are symmetrically fixedly connected at both ends of the connecting block, a pull rod is fixedly connected to one end of the reset spring, and the pull rod is slidably arranged in the U-shaped ring.

[0016] As a further description of the above technical solution:

[0017] One end of the pull rod away from the return spring is fixedly connected to a fixing rod, and one end of the fixing rod away from the pull rod is fixed on the baffle.

[0018] As a further description of the above technical solution:

[0019] Slide grooves are symmetrically provided at both ends of the support frame, a slide rod is slidably connected in the slide groove, and baffles are fixedly connected at both ends of the slide rod.

[0020] As a further description of the above technical solution:

[0021] The material guide assembly includes a cross bar, one end of which is fixedly connected to a guide plate, two ends of which are symmetrically fixedly connected to connecting strips, one end of which is fixedly connected to a linkage rod, an end of the linkage rod away from the connecting strip is sleeved with a limit block, and the limit block is fixed on the U-shaped plate.

[0022] As a further description of the above technical solution:

[0023] One end of the limit block is fixedly connected to a support spring, one end of the support spring is fixedly connected to a movable rod, and the movable rod is sleeved on the connecting rod, and a guide wheel is provided at one end of the movable rod away from the support spring.

[0024] As a further description of the above technical solution:

[0025] A backing plate is fixedly connected inside the fixing ring, and the backing plate is fitted with the guide wheel.

[0026] The present invention provides a raw material ball milling device for lithium battery production, which has the following beneficial effects:

[0027] In the present invention, the grinding material and the grinding balls in the drum are located at one end of the drum during the rotation process, and two baffles are located at both sides of the grinding material and the grinding balls, so that the grinding balls in the grinding material roll under the drive of the drum, and when the grinding balls collide with the baffle arranged at a high position, the baffle is squeezed, and after the baffle is squeezed, the baffle arranged at the other end at the bottom is driven by the sliding rod to move, so that the baffle located at the lower position squeezes the grinding balls at one end, so that the grinding balls located at the lower position of the drum are squeezed into the grinding material, the unnecessary friction movement of the grinding balls is reduced, and the grinding efficiency of the grinding balls is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a raw material ball milling equipment for lithium battery production proposed by the present invention;

[0029] Figure 2 It is a structural schematic diagram of the separation network in the present invention;

[0030] Figure 3 It is a structural schematic diagram of the support mechanism in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the support frame in the present invention;

[0032] Figure 5 It is a structural schematic diagram of the baffle in the present invention;

[0033] Figure 6It is a structural schematic diagram of the U-shaped plate in the present invention;

[0034] Figure 7 It is a structural schematic diagram of the connecting seat in the present invention;

[0035] Figure 8 For the present invention Figure 7 Schematic diagram of the local structure at A in the middle;

[0036] Fig. 9 It is a structural schematic diagram of the material guiding component in the present invention;

[0037] Fig.10 For the present invention Fig. 9 Schematic diagram of the local structure at B in the middle;

[0038] Fig.11 It is a schematic diagram of the structure of the guide wheel in the present invention.

[0039] Legend: 1. Frame; 11. Support leg; 12. Stabilizer bar; 2. Roller; 3. Support mechanism; 31. Fixed ring; 32. Limiting wheel; 33. Connecting column; 34. Pad; 4. Separation assembly; 41. Support frame; 411. Slide groove; 42. Separation net; 43. U-shaped plate; 44. U-shaped ring; 441. Connecting block; 442. Return spring; 443. Pull rod; 45. Sliding rod; 46. Baffle; 47. Fixed rod; 48. Material guide assembly; 481. Cross bar; 482. Guide plate; 483. Connecting strip; 484. Limiting groove; 49. Linking rod; 491. Limiting block; 492. Support spring; 493. Movable rod; 494. Guide wheel; 410. Connecting seat; 5. Servo motor. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Reference Figure 1-11 , a raw material ball milling device for lithium battery production, comprising a frame 1 and a roller 2 rotatably connected in the frame 1;

[0042] The two ends of the drum 2 are symmetrically provided with supporting mechanisms 3 for supporting and fixing, and a separation component 4 is fixedly connected between the two supporting mechanisms 3 through a U-shaped plate 43, and the separation component 4 is used to separate the ground material from the grinding balls and discharge the materials; the separation component 4 includes a support frame 41, and the two ends of the support frame 41 are fixedly connected with baffles 46 in a symmetrical structure through sliding rods 45, and a separation net 42 is provided between the two baffles 46, and the separation net 42 drives the support frame 41 to rotate along the central axis of the drum 2 through the servo motor 5, so that the separation net 42 separates the ground material from the grinding balls, and a material guide component 48 is movably provided in the support frame 41, and the material guide component 48 drives the support frame 41 to rotate along the central axis of the drum 2 to the bottom discharge port of the drum 2 through the servo motor 5, and by adjusting the servo motor 5 to a reciprocating state, the material guide component 48 guides the ground material in the drum 2 to the discharge port for discharge;

[0043] Specifically, a drum 2 which is rotated by a driving device is provided in the frame 1. Support mechanisms 3 arranged at both ends of the drum 2 drive and clamp the drum 2, so that the drum 2 drives the grinding materials and grinding balls in the drum to move and grind. A separation component 4 is provided between the two support mechanisms 3. The separation component 4 is provided in the drum 2. Slide rods for fixing baffles 46 are movably provided at both ends of a support frame 41 in the separation component 4. The baffles 46 are symmetrically arranged relative to the support frame 41. When the drum 2 rotates, the grinding materials and grinding balls in the drum 2 are at one end of the drum 2 during the rotation process. The two baffles 46 are at both sides of the grinding materials and the grinding balls, so that the grinding balls in the grinding materials roll under the drive of the drum 2. When the grinding balls collide with the baffle 46 arranged at a high position, the baffle 46 is squeezed. After the baffle 46 is squeezed, the baffle 46 at the other end arranged at the bottom is driven to move through the slide rod, so that the baffle 46 at the lower position squeezes the grinding balls at one end, so that the grinding balls at the lower position of the drum 2 are squeezed into the grinding materials, thereby reducing the grinding balls. The low grinding balls make unnecessary friction movements to improve the grinding efficiency of the grinding balls. The material guide component 48 movably arranged in the support frame 41 moves along the central axis of the drum 2 driven by the servo motor 5. When the grinding material is in the grinding stroke, the material guide component 48 is in a stopped state. When the drum 2 is in the process of discharging the grinding material, the servo motor 5 drives the support frame 41 to rotate along the central axis of the drum 2, and cooperates with the rotation of the drum 2 to roll the grinding material and the grinding balls into the separation net 42 fixedly connected between the two baffles 46. The separation net 42 separates the grinding material from the grinding balls. The separated grinding material falls at the discharge port opened in the drum 2. The discharge port of the drum 2 is self-adaptively adjusted through its own rotation. The support frame 41 is driven by the servo motor 5 to descend and the material guide component 48 is driven to the discharge port of the drum 2. The working mode of the servo motor 5 is adjusted. The support frame 41 is driven to reciprocate by the servo motor 5. The material guide component 48 located in the support frame 41 gathers the grinding material to the discharge port, thereby improving the discharge efficiency of the drum 2.

[0044] The frame 1 includes a support leg 11, and the support leg 11 is arranged at both ends of the drum 2, and a stabilizing rod 12 is fixedly connected between the two support legs 11; one end of the servo motor 5 is fixedly connected to a connecting seat 410, and one end of the connecting seat 410 is fixedly connected to a U-shaped plate 43; the support mechanism 3 includes a fixed ring 31, and one end of the fixed ring 31 is provided with a limiting wheel 32 in an array, and the limiting wheel 32 is in contact with the outer wall of the drum 2, and one end of the fixed ring 31 is fixedly connected to a connecting column 33, and one end of the connecting column 33 is fixedly connected to the support leg 11;

[0045] Specifically, the support legs 11 included in the frame 1 are in a cross structure, a servo motor 5 is fixedly connected at the cross connection of the support legs 11, a stabilizing rod 12 fixedly connected at the end is used for structural reinforcement, and a connecting column 33 fixedly connected in the support leg 11 is used to fix the fixing ring 31. A directional wheel arranged at one end of the fixing ring 31 clamps the drum 2, so as to improve the stability of the drum 2 when rotating;

[0046] The support frame 41 is fixedly connected with U-shaped plates 43 at both ends, and the end of the U-shaped plate 43 away from the support frame 41 is fixedly connected with a U-shaped ring 44, and a connecting block 441 is fixedly connected inside the U-shaped ring 44, and the two ends of the connecting block 441 are symmetrically fixedly connected with return springs 442, and one end of the return spring 442 is fixedly connected with a pull rod 443, and the pull rod 443 is slidably arranged in the U-shaped ring 44; the end of the pull rod 443 away from the return spring 442 is fixedly connected with a fixing rod 47, and the end of the fixing rod 47 away from the pull rod 443 is fixed on the baffle 46; the support frame 41 is symmetrically provided with sliding grooves 411 at both ends, and a sliding rod 45 is slidably connected in the sliding groove 411, and the two ends of the sliding rod 45 are fixedly connected with baffles 46;

[0047] Specifically, the U-shaped plates 43 fixedly connected at both ends of the support frame 41 are used to connect the U-shaped ring 44. The return springs 442 symmetrically fixed at both ends of the connection block 441 fixedly connected in the U-shaped ring 44 shrink after the baffle 46 is squeezed by the grinding ball, so that the baffle 46 is not squeezed by the grinding ball and is reset. The pull rod 443 fixedly connected by the return spring 442 and the baffle 46 fixedly connected by the pull rod 443 through the fixed rod 47 fit with the grinding ball, so that the baffle 46 fits tightly with the grinding ball, thereby improving the grinding ball's ability to efficiently rub against the grinding material during the rotation of the drum 2, reducing the grinding ball's unnecessary friction rotation when the drum 2 rotates, damaging the inner wall of the drum 2, and reducing the service life of the inner wall of the drum 2.

[0048] The material guide assembly 48 includes a cross bar 481, one end of which is fixedly connected to a guide plate 482, and two ends of the cross bar 481 are symmetrically fixedly connected to connecting strips 483, one end of the connecting strip 483 is fixedly connected to a linkage rod 49, and one end of the linkage rod 49 away from the connecting strip 483 is sleeved with a limit block 491, and the limit block 491 is fixed on the U-shaped plate 43; one end of the limit block 491 is fixedly connected to a support spring 492, one end of the support spring 492 is fixedly connected to a movable rod 493, and the movable rod 493 is sleeved on the linkage rod 49, and one end of the movable rod 493 away from the support spring 492 is provided with a guide wheel 494; a pad 34 is fixedly connected inside the fixing ring 31, and the pad 34 is in contact with the guide wheel 494;

[0049] Specifically, the cross bar 481 in the guide assembly 48 is used to fix the guide plate 482. When the servo motor 5 drives the support frame 41 to move, the guide wheel 494 connected to the linkage rod 49 is in a state of contact with the pad 34, so that the connecting strip 483 fixedly connected to the linkage rod 49 and the guide plate 482 fixedly connected to the cross bar 481 are separated from the inner wall of the drum 2, thereby reducing the wear of the inner wall of the drum 2 during movement. When the guide wheel 494 is separated from the pad 34 fixed on the fixing ring 31, the guide wheel 494 is in contact with the fixing ring 31, and the guide wheel 494 is located in a state of contact with the pad 34. The supported spring 492 under stress in the guide wheel 494 elastically supports the guide wheel 494 to fit with the fixed ring 31, so that the cross bar 481 fixedly connected to the linkage rod 49 and the guide plate 482 can move in a directional manner along the limiting groove 484 provided in the U-shaped plate 43, so that the guide plate 482 fits with the inner wall of the drum 2. At this time, the drum 2 self-adjusts the discharge port to the lower part of the drum 2, and switches the servo motor 5 to a reciprocating motion state, so that the guide plate 482 fixedly connected to the cross bar 481 can gather the ground material to the discharge port of the drum 2, thereby improving the discharge efficiency of the drum 2.

[0050] Working principle: a drum 2 which is rotated by a driving device is provided in the frame 1, and supporting mechanisms 3 arranged at both ends of the drum 2 drive and clamp the drum 2, so that the drum 2 drives the grinding materials and grinding balls in the drum to move and grind. A separation component 4 is provided between the two supporting mechanisms 3, and the separation component 4 is provided in the drum 2. Sliding rods for fixing baffles 46 are movably provided at both ends of the supporting frame 41 in the separation component 4. The baffles 46 are symmetrically arranged with respect to the supporting frame 41. When the drum 2 rotates, the grinding materials and grinding balls in the drum 2 are at one end of the drum 2 during the rotation process, and the two baffles 46 are at both sides of the grinding materials and the grinding balls, so that the grinding balls in the grinding materials roll under the drive of the drum 2, and when the grinding balls collide with the baffle 46 arranged at a high position, the baffle 46 is squeezed. After the baffle 46 is squeezed, the baffle 46 at the other end arranged at the bottom is driven to move through the sliding rod, so that the baffle 46 at the lower position squeezes the grinding balls at one end, so that the grinding balls at the lower position of the drum 2 are squeezed into the grinding materials, thereby reducing the grinding balls. The low grinding balls make unnecessary friction movements to improve the grinding efficiency of the grinding balls. The material guide component 48 movably arranged in the support frame 41 moves along the central axis of the drum 2 driven by the servo motor 5. When the grinding material is in the grinding stroke, the material guide component 48 is in a stopped state. When the drum 2 is in the process of unloading the grinding material, the servo motor 5 drives the support frame 41 to rotate along the central axis of the drum 2, and cooperates with the rotation of the drum 2 to roll the grinding material and the grinding balls into the separation net 42 fixedly connected between the two baffles 46. The separation net 42 separates the grinding material from the grinding balls, and the separated grinding material falls at the discharge port opened in the drum 2. The discharge port of the drum 2 is self-adaptively adjusted through its own rotation. The support frame 41 is driven by the servo motor 5 to descend and the material guide component 48 is driven to the discharge port of the drum 2. The working mode of the servo motor 5 is adjusted, and the support frame 41 is driven to reciprocate by the servo motor 5. The material guide component 48 located in the support frame 41 gathers the grinding material to the discharge port, thereby improving the discharge efficiency of the drum 2.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A raw material ball milling equipment for lithium battery production, characterized in that: It comprises a frame (1) and a roller (2) rotatably connected to the frame (1); Support mechanisms (3) for supporting and fixing are symmetrically provided at both ends of the drum (2); a separation assembly (4) is fixedly connected between the two support mechanisms (3) via a U-shaped plate (43); the separation assembly (4) is used to separate the grinding material from the grinding balls and to discharge the grinding material; The support mechanism (3) comprises a fixed ring (31), one end of which is provided with a limiting wheel (32) in an array, and the limiting wheel (32) is in contact with the outer wall of the roller (2); one end of the fixed ring (31) is fixedly connected to a connecting column (33), and one end of the connecting column (33) is fixedly connected to a supporting leg (11); a pad (34) is fixedly connected inside the fixed ring (31), and the pad (34) is in contact with the guide wheel (494); The separation component (4) comprises a support frame (41), and baffles (46) are fixedly connected at both ends of the support frame (41) via sliding rods (45) in a symmetrical structure. A separation net (42) is provided between the two baffles (46). The separation net (42) drives the support frame (41) to rotate along the central axis of the drum (2) via a servo motor (5), so that the separation net (42) separates the ground material from the grinding balls. A material guide component (48) is movably provided in the support frame (41). The material guide component (48) drives the support frame (41) to rotate along the central axis of the drum (2) to the bottom discharge port of the drum (2) via the servo motor (5), and by adjusting the servo motor (5) to a reciprocating state, the material guide component (48) guides the ground material in the drum (2) to the discharge port for unloading. The two ends of the support frame (41) are fixedly connected A U-shaped plate (43) is provided, wherein one end of the U-shaped plate (43) away from the support frame (41) is fixedly connected to a U-shaped ring (44), a connecting block (441) is fixedly connected inside the U-shaped ring (44), and two ends of the connecting block (441) are symmetrically fixedly connected to return springs (442), one end of the return spring (442) is fixedly connected to a pull rod (443), and the pull rod (443) is slidably arranged inside the U-shaped ring (44); one end of the pull rod (443) away from the return spring (442) is fixedly connected to a fixing rod (47), and one end of the fixing rod (47) away from the pull rod (443) is fixed on a baffle (46); two ends of the support frame (41) are symmetrically provided with sliding grooves (411), a sliding rod (45) is slidably connected inside the sliding groove (411), and two ends of the sliding rod (45) are fixedly connected to baffles (46); The material guide assembly (48) comprises a cross bar (481), one end of the cross bar (481) is fixedly connected to a guide plate (482), two ends of the cross bar (481) are symmetrically fixedly connected to connecting strips (483), one end of the connecting strip (483) is fixedly connected to a linkage rod (49), one end of the linkage rod (49) away from the connecting strip (483) is sleeved with a limit block (491), and the limit block (491) is fixedly connected to the U-shaped plate (43); one end of the limit block (491) is fixedly connected to a support spring (492), one end of the support spring (492) is fixedly connected to a movable rod (493), and the movable rod (493) is sleeved on the linkage rod (49), and one end of the movable rod (493) away from the support spring (492) is provided with a guide wheel (494); One end of the servo motor (5) is fixedly connected to a connection seat (410), and one end of the connection seat (410) is fixedly connected to a U-shaped plate (43).

2. The raw material ball milling equipment for lithium battery production according to claim 1, characterized in that: The frame (1) comprises support legs (11), and the support legs (11) are arranged at two ends of the drum (2), and a stabilizing rod (12) is fixedly connected between the two support legs (11).

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