Graphite cathode material grading device

Abstract

The utility model discloses a graphite cathode material grading device, which belongs to the technical field of grading devices and comprises a grading barrel, a programmable controller is fixedly connected to the outer side wall of the grading barrel, a feeding pipe communicated with the grading barrel is fixedly connected to the top end of the grading barrel, a plurality of screens are arranged in the grading barrel at equal intervals from top to bottom, and a plurality of baffles are arranged in the grading barrel. The apertures of sieve holes of the multiple sieves are gradually reduced from top to bottom, a rotation driving mechanism for driving the multiple sieves to rotate is assembled between the multiple sieves and the grading barrel, and the bottom end of the grading barrel is of an inclined structure; the graphite cathode material grading device can effectively prevent graphite cathode materials from being separated from the grading barrel in the grading process to be collected by workers, time and labor are saved, meanwhile, the rotation driving mechanism is arranged between the multiple screens and the grading barrel, the graphite cathode materials graded on the multiple screens can be sequentially poured into the lowermost portion of the grading barrel to be collected, and the grading efficiency is improved. The collection convenience is improved, and the time-saving and labor-saving degree of the device is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grading devices, and in particular relates to a graphite negative electrode material grading device. Background Art

[0002] Graphite negative electrode material is a carbon material with good conductivity and chemical stability. Therefore, it is widely used in the manufacture of negative electrode materials for batteries such as lithium-ion batteries, lead-acid batteries and nickel-metal hydride batteries. Before the graphite negative electrode material is made into a battery negative electrode material, a grading device is required to grade the graphite negative electrode material in order to screen out the graphite negative electrode material that meets the requirements for making a battery negative electrode material.

[0003] Chinese Patent No. 202223139617.0 discloses a grading device for processing graphite negative electrode materials, which consists of a base placed on the ground, a rotatable grading screen barrel mechanism with openings at both ends installed on the base, a feed port installed on the base at the feed end of the grading screen barrel mechanism, and a discharge port installed on the base below the grading screen barrel mechanism. When the device grades graphite negative electrode materials, the graphite negative electrode material enters the grading screen barrel mechanism through the feed port, and the rotation of the grading screen barrel mechanism drives the graphite negative electrode material to rotate. Part of the graphite negative electrode material enters the discharge port through the sieve holes of the grading screen barrel mechanism and is then discharged through the discharge port. Part of the graphite negative electrode material is discharged through the lower end of the grading screen barrel mechanism, thereby achieving grading of the graphite negative electrode material.

[0004] The inventors of the present application have discovered that the existing grading device for processing graphite negative electrode materials drives the graphite negative electrode materials to rotate by rotating the grading screen barrel mechanism, so that part of the rotating graphite negative electrode materials falls to the discharge port after being screened through the screen holes, and part is discharged through the lower end opening of the grading screen barrel mechanism to achieve grading. In this grading method, the grading screen barrel mechanism is always rotating. When the screen holes of the grading screen barrel mechanism rotate to be out of the receiving range of the discharge port, part of the graphite negative electrode materials is easily discharged through the screen holes and falls to the ground, requiring staff to collect and then feed the materials for grading, which is relatively time-consuming and labor-intensive. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a graphite negative electrode material grading device, which has the characteristics of improving the time and labor saving degree of the device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a graphite negative electrode material grading device, comprising: a grading cylinder, a programmable controller is fixedly connected to the outer wall of the grading cylinder, a feed pipe connected to the grading cylinder is fixedly connected to the top of the grading cylinder, a plurality of screens are arranged at equal intervals from top to bottom inside the grading cylinder, the apertures of the screens gradually decrease from top to bottom, a rotating drive mechanism for driving the plurality of screens to rotate is arranged between the plurality of screens and the grading cylinder, the bottom end of the grading cylinder is an inclined structure, a discharge port connected to the grading cylinder is provided at the inclined bottom end of the grading cylinder, and the rotating drive mechanism is electrically connected to the programmable controller.

[0007] Furthermore, the rotation driving mechanism includes a second connecting shaft fixedly connected to one side of the outer wall of the screen, a fixed seat fixedly connected to the outer wall of the grading cylinder and located above each second connecting shaft, two fixed plates fixedly connected to the outer wall of the grading cylinder and located below and above the multiple fixed seats, and a first connecting shaft fixedly connected to the other side of the outer wall of the screen, the second connecting shaft passes through the grading cylinder at one end away from the screen and extends to the outside and is fixedly sleeved with a first conical wheel, the second connecting shaft is connected to the grading cylinder through a bearing, the fixed seat is connected to a third connecting shaft through a bearing, the top end of the third connecting shaft passes through the fixed seat, extends to the top and is fixedly sleeved with a second gear, and the bottom end of the third connecting shaft passes through the fixed seat, extends to the bottom and is fixedly sleeved There is a second conical wheel meshing with the first conical wheel, a first motor is fixedly connected to the bottom end of the fixed plate below, a screw is arranged between the two fixed plates, the bottom end of the screw is connected to the output shaft of the first motor through a coupling, the top end of the screw is connected to the upper fixed plate through a bearing, a second movable seat is connected to the screw through a transmission nut, a second motor is fixedly connected to the bottom end of the second movable seat, the output shaft of the second motor passes through the second movable seat to extend upward and is connected to the first gear meshing with the second gear through a coupling, the first connecting shaft passes through the grading cylinder at one end away from the screen and extends to the outside, the first connecting shaft is connected to the grading cylinder through a bearing, and the first motor and the second motor are electrically connected to the programmable controller.

[0008] Furthermore, a positioning mechanism is installed between the second movable seat and multiple fixed seats, and the positioning mechanism includes an infrared transmitter fixedly connected to the side wall of the second movable seat close to the fixed seat and an infrared receiver fixedly connected to the side wall of the fixed seat close to the second movable seat. The infrared transmitter and the infrared receiver are electrically connected to the programmable controller.

[0009] Furthermore, one end of the first connecting shaft extending to the outside is fixedly connected with an angle sensor, and the angle sensor is electrically connected to the programmable controller.

[0010] Furthermore, a chassis is provided below the grading cylinder, an electric cylinder is fixedly connected to the outer side wall of the chassis, a connecting seat is fixedly connected to the middle of the bottom end of the grading cylinder, the output shaft of the electric cylinder passes through the chassis and extends into the chassis and is fixed to the connecting seat, two first movable seats are symmetrically fixedly connected to the two sides of the bottom end of the grading cylinder, two movable rods are symmetrically fixedly connected inside the chassis, the two first movable seats are movably connected to the two movable rods by means of open hole socketing, and the electric cylinder is electrically connected to the programmable controller.

[0011] Furthermore, a material guide plate is fixedly connected between the grading cylinder and the bottom plate at the material discharging end of the material discharging port.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model arranges a plurality of screens in the grading cylinder, and the apertures of the plurality of screens gradually decrease from top to bottom. When the graphite negative electrode material is graded, the graphite negative electrode material is graded through the plurality of screens. Compared with the prior art, the utility model can effectively prevent the graphite negative electrode material from escaping from the grading cylinder during the grading process so that the staff can collect the material, which is more time-saving and labor-saving. At the same time, a rotating drive mechanism is arranged between the plurality of screens and the grading cylinder, which can pour the graphite negative electrode material graded on the plurality of screens into the bottom of the grading cylinder for collection in turn, thereby improving the convenience of collection and further improving the time-saving and labor-saving degree of the device.

[0014] 2. The grading cylinder of the utility model is arranged as a reciprocating structure, which can make the graphite negative electrode material in the grading cylinder shake during the reciprocating movement when grading the graphite negative electrode material, thereby improving the grading efficiency of the graphite negative electrode material in the grading cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a vertical cross-sectional view of the utility model;

[0017] Figure 3 For this utility model Figure 1 Enlarged view of point A in the middle;

[0018] In the figure: 1. grading cylinder; 2. programmable controller; 3. first motor; 4. screw; 5. fixed plate; 6. feed pipe; 7. angle sensor; 8. first connecting shaft; 9. screen; 10. guide plate; 11. discharge port; 12. chassis; 13. connecting seat; 14. first movable seat; 15. electric cylinder; 16. movable rod; 17. first gear; 18. second movable seat; 19. second motor; 20. infrared transmitter; 21. first conical wheel; 22. second connecting shaft; 23. second conical wheel; 24. fixed seat; 25. second gear; 26. third connecting shaft; 27. infrared receiver. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1

[0021] See also Figure 1-3 The utility model provides the following technical solutions: a graphite negative electrode material grading device, comprising: a grading cylinder 1, a programmable controller 2 of model VH-24MR is fixedly connected to the outer wall of the grading cylinder 1, a feeding pipe 6 connected to the grading cylinder 1 is fixedly connected to the top of the grading cylinder 1, a plurality of screens 9 are arranged at equal intervals from top to bottom inside the grading cylinder 1, the sieve holes of the plurality of screens 9 gradually become smaller from top to bottom, a rotating drive mechanism for driving the plurality of screens 9 to rotate is arranged between the plurality of screens 9 and the grading cylinder 1, the bottom end of the grading cylinder 1 is an inclined structure, a discharge port 11 connected to the grading cylinder 1 is opened at the inclined bottom end of the grading cylinder 1, and the rotating drive mechanism is electrically connected to the programmable controller 2.

[0022] See attached Figure 1-2 When the device performs graphite negative electrode material classification, the graphite negative electrode material is poured into the classification cylinder 1 through the feed pipe 6, and the graphite negative electrode material is classified through the multiple screens 9 in the classification cylinder 1. After the classification is completed, the graphite negative electrode material below the bottom screen 9 is collected through the discharge port 11. After the collection of the graphite negative electrode material is completed, the rotation drive mechanism is controlled by the programmable controller 2 to start, and the rotation drive mechanism drives the bottom screen 9 to rotate, and the graphite negative electrode material classified by the bottom screen 9 is poured into the bottom of the bottom screen 9 and discharged through the discharge port 11. 1 Collect the graphite negative electrode material under the bottom screen 9. After the collection of the graphite negative electrode material is completed, the rotation drive mechanism controls the rotation of the second bottom screen 9, and pours the graphite negative electrode material classified by the second bottom screen 9 under the bottom screen 9. The graphite negative electrode material under the bottom screen 9 is collected through the discharge port 11, and so on, until the graphite negative electrode material classified by the top screen 9 is poured under the bottom screen 9, and the graphite negative electrode material under the top screen 9 is collected through the discharge port 11. Stop, and the classification of the graphite negative electrode material is completed.

[0023] Specifically, the rotation driving mechanism includes a second connecting shaft 22 fixedly connected to one side of the outer wall of the screen 9, a fixing seat 24 fixedly connected to the outer wall of the grading cylinder 1 and located above each second connecting shaft 22, two fixing plates 5 fixedly connected to the outer wall of the grading cylinder 1 and located below and above the multiple fixing seats 24, and a first connecting shaft 8 fixedly connected to the other side of the outer wall of the screen 9. The second connecting shaft 22 extends through the grading cylinder 1 at one end away from the screen 9 to the outside and is fixedly sleeved with a first conical wheel 21. The second connecting shaft 22 is connected to the through section of the grading cylinder 1 through a bearing. The fixing seat 24 is connected to a third connecting shaft 26 through a bearing. The top end of the third connecting shaft 26 penetrates the fixing seat 24 and extends to the top and is fixedly sleeved with a second gear 25. The bottom end of the third connecting shaft 26 penetrates the fixing seat 24 and extends to the bottom and is fixedly sleeved with a third gear meshing with the first conical wheel 21. Two conical wheels 23, a first motor 3 of model 5IK90RGU-CF is fixedly connected to the bottom end of the lower fixed plate 5, a screw 4 is arranged between the two fixed plates 5, the bottom end of the screw 4 is connected to the output shaft of the first motor 3 through a coupling, the top end of the screw 4 is connected to the upper fixed plate 5 through a bearing, a second movable seat 18 is connected to the screw 4 through a transmission nut, a second motor 19 of model 5IK90RGU-CF is fixedly connected to the bottom end of the second movable seat 18, the output shaft of the second motor 19 passes through the second movable seat 18 to extend upward and is connected to the first gear 17 meshing with the second gear 25 through a coupling, the first connecting shaft 8 passes through the grading cylinder 1 at one end away from the screen 9 and extends to the outside, the first connecting shaft 8 is connected to the through section of the grading cylinder 1 through a bearing, and the first motor 3 and the second motor 19 are electrically connected to the programmable controller 2.

[0024] See attached Figure 1-3The rotation driving mechanism is controlled by the programmable controller 2 to start the first motor 3, the first motor 3 drives the output shaft to rotate forward, and drives the screw 4 to rotate forward. During the forward rotation of the screw 4, the second movable seat 18 moves upward on the screw 4, driving the connected structure to move upward until the first gear 17 is engaged and connected with the second gear 25 at the bottom and stops. The programmable controller 2 controls the second motor 19 to start, the second motor 19 drives the output shaft to rotate forward, drives the first gear 17 to rotate forward, drives the second gear 25 to rotate forward, drives the third connecting shaft 26 to rotate forward, drives the second conical wheel 23 to rotate forward, and drives The first conical wheel 21 rotates forward, driving the second connecting shaft 22 to rotate forward, driving the screen 9 to rotate forward, and realizing the rotation drive of the bottom screen 9 to drop materials. The first motor 3 is controlled by the programmable controller 2 to continue to rotate forward, so that the second movable seat 18 continues to move upward until the first gear 17 is engaged and connected with the second gear 25 below and stops. The rotation drive of the next lower screen 9 is driven to drop materials according to the above method, and so on, to realize the rotation drive of multiple screens 9 to drop materials; when the multiple screens 9 are all dropped, the screen 9 is reset by the reverse rotation of the second motor 19, and the second movable seat 18 is reset by the reverse rotation of the first motor 3.

[0025] Specifically, a positioning mechanism is installed between the second movable seat 18 and multiple fixed seats 24. The positioning mechanism includes an infrared transmitter 20 with model number IR204 fixedly connected to the side wall of the second movable seat 18 near the fixed seat 24 and an infrared receiver 27 with model number IRM-56384 fixedly connected to the side wall of the fixed seat 24 near the second movable seat 18. The infrared transmitter 20 and the infrared receiver 27 are electrically connected to the programmable controller 2.

[0026] See attached Figure 3 The first gear 17 moves to the meshing connection position with each second gear 25 by the programmable controller 2 controlling the infrared transmitter 20 and the corresponding infrared receiver 27 to start. When the corresponding infrared receiver 27 receives the infrared signal of the infrared transmitter 20, the programmable controller 2 controls the first motor 3 to stop driving to achieve positioning.

[0027] Specifically, one end of the first connecting shaft 8 extending to the outside is fixedly connected with an angle sensor 7 of model KMZ41, and the angle sensor 7 is electrically connected to the programmable controller 2.

[0028] See attached Figure 2 The angle sensor 7 can monitor the rotation angle of the screen 9 so that the screen 9 can be rotated to the same angle and reset later.

[0029] Embodiment 2

[0030] The difference between this embodiment and the first embodiment is that:

[0031] Specifically, a chassis 12 is provided below the grading cylinder 1, an electric cylinder 15 of model HE100 is fixedly connected to the outer wall of the chassis 12, a connecting seat 13 is fixedly connected to the middle of the bottom end of the grading cylinder 1, the output shaft of the electric cylinder 15 passes through the chassis 12 and extends into the chassis 12 and is fixedly connected to the connecting seat 13, two first movable seats 14 are symmetrically fixedly connected to the two sides of the bottom end of the grading cylinder 1, two movable rods 16 are symmetrically fixedly connected inside the chassis 12, the two first movable seats 14 are movably connected to the two movable rods 16 by means of open hole socket connection, and the electric cylinder 15 is electrically connected to the programmable controller 2.

[0032] See attached Figure 2 When the grading cylinder 1 grades the graphite negative electrode material, the programmable controller 2 controls the electric cylinder 15 to start, and the electric cylinder 15 drives the output shaft to reciprocate and extend or contract, driving the connecting seat 13 to move back and forth, driving the grading cylinder 1 to move back and forth, realizing the shaking of the grading cylinder 1, and improving the grading efficiency of the graphite negative electrode material of the grading cylinder 1; during the reciprocating movement of the grading cylinder 1, the two first movable seats 14 move synchronously on the two movable rods 16 respectively, improving the movement stability of the grading cylinder 1.

[0033] Specifically, a material guide plate 10 is fixedly connected between the grading cylinder 1 and the bottom plate 12 at the material discharging end of the material discharging port 11 .

[0034] See attached Figure 2 The guide plate 10 can lead the graphite negative electrode material at the discharge port 11 into the collection container, thereby preventing the graphite negative electrode material from entering the bottom plate 12 and increasing the difficulty of cleaning.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A graphite negative electrode material classification device, characterized in that: include: A grading cylinder (1), wherein the outer wall of the grading cylinder (1) is fixedly connected to a programmable controller (2), a top end of the grading cylinder (1) is fixedly connected to a feed pipe (6) connected to the grading cylinder (1), a plurality of screens (9) are arranged at equal intervals from top to bottom inside the grading cylinder (1), the apertures of the plurality of screens (9) gradually decrease from top to bottom, a rotation drive mechanism for driving the plurality of screens (9) to rotate is arranged between the plurality of screens (9) and the grading cylinder (1), the bottom end of the grading cylinder (1) is arranged in an inclined structure, a discharge port (11) connected to the grading cylinder (1) is provided at the inclined bottom end of the grading cylinder (1), and the rotation drive mechanism is electrically connected to the programmable controller (2); The rotation drive mechanism comprises a second connecting shaft (22) fixedly connected to one side of the outer wall of the screen (9), a fixing seat (24) fixedly connected to the outer wall of the grading cylinder (1) and located above each second connecting shaft (22), two fixing plates (5) fixedly connected to the outer wall of the grading cylinder (1) and located below and above the plurality of fixing seats (24), and a first connecting shaft (8) fixedly connected to the other side of the outer wall of the screen (9), wherein the second connecting shaft (22) extends through the grading cylinder (1) at one end away from the screen (9) and is fixedly sleeved with a first conical wheel (21) at one end thereof which passes through the grading cylinder (1) and extends to the outside, and is fixedly sleeved with a first conical wheel (21), the second connecting shaft (22) is connected to the through section of the grading cylinder (1) via a bearing, the fixing seat (24) is connected to a third connecting shaft (26) via a bearing, the top end of the third connecting shaft (26) passes through the fixing seat (24) and extends to the top and is fixedly sleeved with a second gear (25), the bottom end of the third connecting shaft (26) passes through the fixing seat (24) and extends to the bottom and is fixedly sleeved with a first conical wheel (21) which is fixedly sleeved with the first conical wheel (21), A second conical wheel (23) is meshedly connected to a conical wheel (21), a first motor (3) is fixedly connected to the bottom end of the lower fixed plate (5), a screw (4) is arranged between the two fixed plates (5), the bottom end of the screw (4) is connected to the output shaft of the first motor (3) through a coupling, the top end of the screw (4) is connected to the upper fixed plate (5) through a bearing, a second movable seat (18) is transmission-connected to the screw (4) through a transmission nut, a second motor (19) is fixedly connected to the bottom end of the second movable seat (18), the output shaft of the second motor (19) passes through the second movable seat (18) and extends to the top and is connected to a first gear (17) meshedly connected to a second gear (25) through a coupling, the end of the first connecting shaft (8) away from the screen (9) passes through the grading cylinder (1) and extends to the outside, the first connecting shaft (8) is connected to the through section of the grading cylinder (1) through a bearing, and the first motor (3) and the second motor (19) are electrically connected to the programmable controller (2).

2. A graphite negative electrode material grading device according to claim 1, characterized in that: A positioning mechanism is installed between the second movable seat (18) and the plurality of fixed seats (24), the positioning mechanism comprising an infrared transmitter (20) fixedly connected to a side wall of the second movable seat (18) close to the fixed seat (24) and an infrared receiver (27) fixedly connected to a side wall of the fixed seat (24) close to the second movable seat (18), the infrared transmitter (20) and the infrared receiver (27) being electrically connected to the programmable controller (2).

3. A graphite negative electrode material grading device according to claim 1, characterized in that: One end of the first connecting shaft (8) extending to the outside is fixedly connected to an angle sensor (7), and the angle sensor (7) is electrically connected to the programmable controller (2).

4. A graphite negative electrode material classification device according to claim 1, characterized in that: A chassis (12) is arranged below the grading cylinder (1), an electric cylinder (15) is fixedly connected to the outer wall of the chassis (12), a connecting seat (13) is fixedly connected to the middle of the bottom end of the grading cylinder (1), an output shaft of the electric cylinder (15) passes through the chassis (12) and extends into the chassis (12) and is fixedly connected to the connecting seat (13), two first movable seats (14) are symmetrically fixedly connected to the two sides of the bottom end of the grading cylinder (1), two movable rods (16) are symmetrically fixedly connected inside the chassis (12), the two first movable seats (14) are movably connected to the two movable rods (16) by means of an open hole sleeve connection, and the electric cylinder (15) is electrically connected to the programmable controller (2).

5. A graphite negative electrode material classification device according to claim 4, characterized in that: A material guide plate (10) is fixedly connected between the grading cylinder (1) and the bottom plate (12) at the material discharge end of the material discharge port (11).

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