Graphite cathode powder feeding device

Abstract

The utility model relates to the technical field of lithium battery processing equipment, and discloses a graphite cathode powder feeding device which comprises a stock bin, the center of the bottom of the stock bin is fixedly communicated with a discharging pipe, an intermittent discharging assembly comprises a motor which is fixedly connected with the discharging pipe through a support, the tail end of a rotor of the motor is coaxially and fixedly connected with a disc, and the tail end of the disc is fixedly connected with an intermittent discharging assembly. A connecting rod is fixedly connected to the position, close to the edge, of the outer portion of the disc, the connecting rod is movably sleeved with a strip-shaped frame, material blocking plates are symmetrically arranged outside a discharging opening of the discharging pipe, and sliding rods are further symmetrically and fixedly connected to the outer portion of the discharging opening of the discharging pipe and are in sliding connection with the material blocking plates; according to the negative electrode powder discharging device, the problem that due to the fact that the mobility of negative electrode powder is poor, and the discharging amount of the negative electrode powder is difficult to control by the device, blocking is prone to occurring is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing equipment, in particular to a feeding device for graphite anode powder. Background Art

[0002] Lithium-ion batteries are currently widely used batteries, which have the advantages of high energy density, long life, light weight, etc., and are widely used in mobile phones, laptops, electric vehicles and other fields. As one of the key materials in lithium-ion batteries, the anode powder is mainly composed of various elements such as carbon, silicon, and lithium titanium, and can provide the anode reaction required by the battery. During the production and processing of lithium batteries, it is necessary to feed the anode powder, so a special feeding device is required.

[0003] In the Chinese utility model patent with the publication number of CN219031082U, a feeding device for graphite anode powder is disclosed. The device makes it convenient to transport the powder through the inclined feeding box and the auger, and can prevent the powder from remaining during the transportation process, with strong practicability. For the above related technologies, the inventor believes that there are the following defects:

[0004] When the device is actually used, due to the poor fluidity of the anode powder itself and the lack of an integrated structure for controlling the feeding amount in the device, a large amount of anode powder will enter the inner part of the feeding port of the feeding hopper at one time, thus easily causing blockage. Therefore, we provide a feeding device for graphite anode powder. Content of the Utility Model

[0005] To solve the problem of blockage easily occurring in the above background art due to the poor fluidity of the anode powder and the difficulty in controlling the feeding amount of the anode powder in the device, the utility model provides a feeding device for graphite anode powder.

[0006] The utility model is realized by adopting the following technical solutions: A feeding device for graphite anode powder, comprising:

[0007] A material bin, the bottom center of the material bin is fixedly communicated with a feeding pipe;

[0008] An intermittent feeding assembly, the intermittent feeding assembly includes a motor fixedly connected to the feeding pipe through a bracket, the end of the rotor of the motor is coaxially fixedly connected with a disc, a connecting rod is fixedly connected to a position near the edge of the outside of the disc, a strip-shaped frame is movably sleeved on the outside of the connecting rod, baffle plates are symmetrically arranged outside the feeding port of the feeding pipe, sliding rods are also symmetrically and fixedly connected outside the feeding port of the feeding pipe and are slidably connected with the baffle plates, and a connecting rod is hinged between the strip-shaped frame and the baffle plates through a hinge;

[0009] Anti-clogging component, the anti-clogging component includes a hollow shaft rotatably connected inside the blanking pipe. Stirring rods are fixedly connected circumferentially at equal intervals on the outer part of the hollow shaft. A connecting piece is arranged inside the hollow shaft. Two balls are symmetrically and movably connected to the connecting piece. A spiral groove is formed on the inner wall of the hollow shaft corresponding to the position of the balls. On one side, a cross bar is fixedly connected to the baffle through a connecting seat, and one end of the cross bar extends into the hollow shaft and is fixedly connected to the connecting piece.

[0010] As a further improvement of the above solution, a limiting ring is fixedly sleeved on the outer part of one end of the connecting rod.

[0011] As a further improvement of the above solution, a guiding rod is fixedly connected to the center of the bottom of the strip-shaped frame. A guiding piece is fixedly connected to the outside of the blanking pipe and is slidably connected with the guiding rod.

[0012] As a further improvement of the above solution, the sum of the areas of the two baffle plates is greater than the cross-sectional area of the blanking pipe.

[0013] As a further improvement of the above solution, the top of the baffle plate is in contact with the outside of the pipe orifice of the blanking pipe.

[0014] As a further improvement of the above solution, the balls are adapted to the spiral grooves.

[0015] As a further improvement of the above solution, the bottom of the storage bin is designed as a funnel-shaped structure.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, the motor drives the disc to rotate, so that the disc can drive the connecting rod to do circular motion. By using the movable cooperation between the connecting rod and the strip-shaped frame and the sliding cooperation between the guiding rod and the guiding piece, the strip-shaped frame can be driven to do vertical reciprocating movement. And with the sliding cooperation between the baffle plate and the sliding rod and the hinge action cooperation between the baffle plate, the strip-shaped frame and the connecting rod, the two baffle plates can be driven to alternately approach and move away from each other, thereby automatically and repeatedly adjusting the size of the blanking port of the blanking pipe, and then achieving the purpose of intermittent blanking, effectively avoiding the problem of easy blockage caused by the poor fluidity of the negative electrode powder and the difficulty in controlling the blanking amount of the negative electrode powder by the device, and having strong practicability.

[0018] 2. In the process of driving the two baffle plates to approach and move away from each other, the baffle plate will also drive the cross bar to move together. The movement of the cross bar drives the balls to move. By using the cooperation between the balls and the spiral grooves and the rotation cooperation of the hollow shaft, the hollow shaft can be driven to rotate, and then the stirring rod can be driven to rotate to stir the negative electrode powder inside the blanking pipe, further preventing the negative electrode powder from being blocked inside the blanking pipe. Brief Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 It is a bottom-up three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the intermittent blanking assembly of the present utility model;

[0022] Figure 4 It is a three-dimensional schematic diagram of the connection structure of the cross bar, hollow shaft and stirring rod of the present utility model;

[0023] Figure 5 It is a longitudinal sectional three-dimensional schematic diagram of the connection structure of the cross bar and the hollow shaft of the present utility model.

[0024] Main Symbol Description:

[0025] 1. Feed bin; 2. Blanking pipe; 101. Disc; 102. Connecting rod; 103. Strip-shaped frame; 104. Baffle plate; 105. Slide bar; 106. Link rod; 107. Guide rod; 108. Guide piece; 201. Hollow shaft; 202. Stirring rod; 203. Ball; 204. Spiral groove; 205. Cross bar. Detailed Description of the Embodiments

[0026] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0027] Embodiment 1:

[0028] Please refer to Figures 1-5 , a graphite negative electrode powder feeding device of this embodiment includes:

[0029] A feed bin 1, the bottom center of the feed bin 1 is fixedly connected and communicated with a blanking pipe 2. The bottom of the feed bin 1 is designed with a funnel-shaped structure, which can prevent the residue of negative electrode powder inside the feed bin 1;

[0030] Intermittent feeding assembly. The intermittent feeding assembly includes a motor fixedly connected to the feeding pipe 2 through a bracket. The end of the rotor of the motor is coaxially fixedly connected with a disc 101. A connecting rod 102 is fixedly connected to a position near the edge of the outside of the disc 101. A strip-shaped frame 103 is movably sleeved outside the connecting rod 102. Baffle plates 104 are symmetrically arranged outside the feeding port of the feeding pipe 2. Slide rods 105 are also symmetrically fixedly connected outside the feeding port of the feeding pipe 2 and are slidably connected with the baffle plates 104. A connecting rod 106 is hinged between the strip-shaped frame 103 and the baffle plates 104 through a hinge member. A guide rod 107 is fixedly connected to the center of the bottom of the strip-shaped frame 103. A guide member 108 is fixedly connected to the outside of the feeding pipe 2 and is slidably connected with the guide rod 107, which can play a certain guiding role in the vertical movement of the strip-shaped frame 103. The sum of the areas of the two baffle plates 104 is greater than the cross-sectional area of the feeding pipe 2. The top of the baffle plate 104 is in contact with the outside of the pipe orifice of the feeding pipe 2, which can prevent the leakage of the negative electrode powder;

[0031] Anti-blocking assembly. The anti-blocking assembly includes a hollow shaft 201 rotatably connected inside the feeding pipe 2. Stirring rods 202 are equidistantly and circumferentially fixedly connected to the outside of the hollow shaft 201. A connecting member is arranged inside the hollow shaft 201. Balls 203 are symmetrically and movably connected to the connecting member. A spiral groove 204 is formed in the inner wall of the hollow shaft 201 corresponding to the position of the balls 203. The balls 203 are adapted to the spiral groove 204. A cross bar 205 is fixedly connected to one of the baffle plates 104 through a connecting seat, and one end of the cross bar 205 extends into the inside of the hollow shaft 201 and is fixedly connected to the connecting member.

[0032] In the embodiment of the present application, the implementation principle of a graphite anode powder feeding device is as follows: First, the anode powder is added into the feeding bin 1, and then the motor is started. The motor drives the disk 101 to rotate, so that the disk 101 can drive the connecting rod 102 to do circular motion. By using the movable cooperation between the connecting rod 102 and the strip-shaped frame 103 and the sliding cooperation between the guide rod 107 and the guide member 108, the strip-shaped frame 103 can be driven to do vertical reciprocating movement. And with the sliding cooperation between the baffle plate 104 and the slide rod 105 and the hinge cooperation between the baffle plate 104 and the strip-shaped frame 103 and the connecting rod 106, the two groups of baffle plates 104 can be driven to alternately approach and move away from each other, so as to automatically and repeatedly adjust the size of the discharge port of the feeding pipe 2, thus achieving the purpose of intermittent feeding. At the same time, when one side of the baffle plate 104 moves, it can also drive the cross bar 205 to move together. The movement of the cross bar 205 drives the movement of the ball 203. By using the cooperation between the ball 203 and the spiral groove 204 and the rotational cooperation of the hollow shaft 201, the hollow shaft 201 can be driven to rotate, so that the stirring rod 202 can be driven to rotate to stir the anode powder inside the feeding pipe 2, further preventing the anode powder from being blocked inside the feeding pipe 2. Finally, the anode powder will be intermittently discharged through the feeding pipe 2.

[0033] Embodiment 2:

[0034] On the basis of Embodiment 1, the further improvement of this embodiment lies in that: a limit ring is fixedly sleeved outside one end of the connecting rod 102, which can prevent the connecting rod 102 from detaching from the strip-shaped frame 103.

[0035] The above implementation manners are only the preferred implementation manners of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention belong to the protection scope required by the present invention.

Claims

1. A graphite negative electrode powder feeding device, characterized in that: include: A material silo (1), wherein the bottom center of the material silo (1) is fixedly connected to a material discharge pipe (2); An intermittent material discharging component, the intermittent material discharging component comprising a motor fixedly connected to a material discharging tube (2) via a bracket, a disc (101) coaxially fixedly connected to the rotor end of the motor, a connecting rod (102) fixedly connected to the outside of the disc (101) near the edge, a strip frame (103) movably sleeved on the outside of the connecting rod (102), a material blocking plate (104) symmetrically arranged on the outside of the material discharging port of the material discharging tube (2), a sliding rod (105) symmetrically fixedly connected to the outside of the material discharging port of the material discharging tube (2) and slidably connected to the material blocking plate (104), a connecting rod (106) hingedly connected between the strip frame (103) and the material blocking plate (104) via a hinge; An anti-blocking component comprises a hollow shaft (201) rotatably connected to the inside of a feeding tube (2); a stirring rod (202) is equidistantly and circumferentially fixedly connected to the outside of the hollow shaft (201); a connecting piece is arranged inside the hollow shaft (201); balls (203) are symmetrically and movably connected to the connecting piece; a spiral groove (204) is provided on the inner wall of the hollow shaft (201) at a position corresponding to the ball (203); a cross bar (205) is fixedly connected to the baffle plate (104) on one side through a connecting seat, and one end of the cross bar (205) extends to the inside of the hollow shaft (201) and is fixedly connected to the connecting piece.

2. A graphite negative electrode powder feeding device as claimed in claim 1, characterized in that: A limiting ring is provided on the outer fixing sleeve of one end of the connecting rod (102).

3. A graphite negative electrode powder feeding device as claimed in claim 1, characterized in that: A guide rod (107) is fixedly connected to the center of the bottom of the bar frame (103), and a guide piece (108) is fixedly connected to the outside of the feed tube (2) and is slidably connected to the guide rod (107).

4. A graphite negative electrode powder feeding device as claimed in claim 1, characterized in that: The sum of the areas of the two groups of material blocking plates (104) is greater than the cross-sectional area of ​​the material discharge pipe (2).

5. A graphite negative electrode powder feeding device as claimed in claim 1, characterized in that: The top of the material blocking plate (104) contacts the outside of the pipe opening of the material discharge pipe (2).

6. A graphite negative electrode powder feeding device as claimed in claim 1, characterized in that: The rolling ball (203) is adapted to the spiral groove (204).

7. A graphite negative electrode powder feeding device as claimed in claim 1, characterized in that: The bottom of the silo (1) is designed as a funnel-shaped structure.

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