Automatic discharging mechanism for lithium battery graphite powder

Abstract

The utility model relates to the technical field of lithium batteries, in particular to an automatic lithium battery graphite powder discharging mechanism which comprises a stock bin, a discharging opening is formed in the bottom of the stock bin, two flashboards are arranged on the discharging opening, the ends, away from each other, of the flashboards are hinged to the discharging opening, and a driving assembly used for pulling the flashboards to rotate along the hinged position is arranged on the stock bin. After the flashboard is closed, the discharge port is closed; the two flashboards are adopted to rotate to open and close the discharging port in the bottom of the stock bin, compared with a previous structure of a horizontally-pushing flashboard, the size of an opening between the flashboards is easier to grasp, the horizontally-pushing flashboard can block part of materials, and the rotatably-opened flashboard has a gradient and is suitable for the materials to slide off from the flashboards and cannot block the materials.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to an automatic discharging mechanism for graphite powder of lithium batteries. Background Art

[0002] When lithium batteries are produced, graphite powder is needed to make battery electrodes. During the graphite powder feeding process, the ground graphite powder material is generally fed into a feeder, and then a sagger is placed at the bottom of the discharging mechanism and the graphite powder is loaded into the sagger in the form of filling.

[0003] The traditional discharging mechanism uses two horizontally-opened gates to control the material discharge, and the amount of material is adjusted by adjusting the size of the opening between the gates. However, this discharging method has disadvantages. It cannot accurately control the amount of material falling, and through the horizontal opening method, the discharging port cannot be closed in time or is not closed tightly, resulting in material loss. Utility Model Content

[0004] The utility model aims to provide an automatic discharging mechanism for lithium battery graphite powder, which solves the problems of lax closure of the existing gate and inability to well control the discharging of the material.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic discharge mechanism for lithium battery graphite powder, comprising a silo, a discharge port at the bottom of which is provided with two gate plates, the ends of which are away from each other and are hinged to the discharge port, and a driving assembly for pulling the gate plates to rotate along the hinge is provided on the silo, and the discharge port is closed when the gate plates are closed.

[0006] The above technical solution uses two gate plates to rotate to open and close the discharge port at the bottom of the silo. Compared with the previous structure of the flat-push gate plates, it is easier to control the size of the opening between the gate plates. The flat-push gate plates will block part of the material, while the rotating gate plates have a slope, which is suitable for the material to slide off the gate plates without blocking the material. When using the double-open flat-push gate plates to close the discharge port, it is easy to clamp part of the material between the two gate plates, resulting in a loose closure and waste. The rotating gate plates can quickly close the discharge port, and the material between the gate plates will be pushed back into the silo without causing leakage, providing a better use effect.

[0007] The bottom of the silo is provided with a support plate, both sides of the support plate are rotatably connected to a rotating shaft through a support, one end of the gate plate is fixedly connected to the rotating shaft, and a handle connected to the output end of the driving component is provided on the rotating shaft.

[0008] The above technical solution provides a support plate at the bottom of the silo, and the supports on both sides of the support plate are used to install the rotating shaft. By linking the rotating shaft with the gate, the drive assembly drives the handle to move, which will cause the gate to move around the rotating shaft so that the gate can be opened or closed, thereby ensuring the reliability of the gate controlling the unloading of materials.

[0009] The driving assembly comprises a pneumatic telescopic rod, an output end of which is hinged to a handle, and the other end of which is hinged to a side wall of the silo.

[0010] The driving component of the above technical solution can adopt a pneumatic telescopic rod, one end of which is hinged to the outer wall of the silo and the other end is hinged to the handle. When the pneumatic telescopic rod is extended or contracted, the pneumatic telescopic rod causes the handle to rotate around the rotating shaft, thereby rotating the gate.

[0011] The silo includes a cylinder body, one end of the pneumatic telescopic rod is hinged to the outer wall of the cylinder body, a filter element is arranged in the cylinder body, the filter element is in the shape of a mesh cylinder, a plurality of negative pressure holes are opened on the cylinder body, a conveying screw is arranged in the filter element, a mounting groove is opened on the support plate, and a sub-screen seat rotatably connected to the bottom end of the conveying screw is arranged in the mounting groove.

[0012] The above technical solution sets up a cylinder and a filter element. The negative pressure hole on the cylinder is used to connect the negative pressure gas, and the inside of the filter element is used to transport materials. The negative pressure applied in the cylinder can absorb the material on the inner wall of the filter element through the mesh of the filter element, thereby compacting the material and achieving a higher loading density.

[0013] A hopper is arranged on the top of the silo, the bottom of the hopper is communicated with the filter element, the top end of the conveying screw extends into the hopper, and the diameter of the spiral blade on the conveying screw is matched with the opening at the bottom of the hopper.

[0014] The above technical solution sets up a hopper for feeding materials, and the conveying screw connects the filter element and the hopper so that the conveying screw can convey the material in the hopper into the filter element. In addition, the diameter of the spiral blades on the conveying screw is set to match the opening at the bottom of the hopper so as to improve the use effect of the conveying screw and improve the quality of feeding.

[0015] Technical effects and advantages of the utility model:

[0016] 1. In this solution, two gates are used to rotate to open and close the discharge port at the bottom of the silo. Compared with the previous structure of the flat-push gate, it is easier to control the size of the opening between the gates. The flat-push gate will block part of the material, while the rotating gate has a slope, which is suitable for the material to slide off the gate without blocking the material.

[0017] 2. In this solution, the gate can be rotated open to quickly close the discharge port, and the material between the gates will be pushed back into the silo without causing leakage, providing better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the state of the automatic discharging mechanism of lithium battery graphite powder provided by the utility model;

[0019] Figure 2 This is a schematic diagram of another state of the automatic discharging mechanism for lithium battery graphite powder provided by the utility model;

[0020] Figure 3 for Figure 1 A schematic diagram of the bottom perspective of FIG.

[0021] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure.

[0022] Figure numerals: 1. silo; 101. cylinder; 102. filter element; 2. support plate; 3. gate; 301. handle; 302. support; 4. pneumatic telescopic rod; 5. hopper; 6. conveying screw; 7. screening seat; 8. negative pressure hole; 9. dust cover. DETAILED DESCRIPTION

[0023] 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.

[0024] Example

[0025] like Figure 1 and Figure 2 The present invention provides an automatic discharge mechanism for lithium battery graphite powder, which comprises a silo 1, a discharge port at the bottom of the silo 1, two gates 3 are arranged on the discharge port, and one end of the gates 3 away from each other is hinged to the discharge port. The silo 1 is provided with a driving assembly for pulling the gates 3 to rotate along the hinge, and the discharge port can be closed when the two gates 3 are closed. This embodiment adopts two gates 3 to rotate to open and close the discharge port at the bottom of the silo 1, which is easier to operate than the previous structure of the flat push gate 3. The size of the opening between the gate plates 3 is such that the gate plates 3 that are pushed horizontally will block a portion of the material, while the gate plates 3 that are rotated to open have a slope, which is suitable for the material to slide down from the gate plates 3 without blocking the material. When the gate plates 3 that are pushed horizontally are used to close the discharge port, a portion of the material is easily clamped between the two gate plates 3, resulting in a waste caused by a loose closure, while the gate plates 3 that are rotated to open can quickly close the discharge port, and the material between the gate plates 3 will be pushed back into the interior of the silo 1 without causing leakage, providing a better use effect.

[0026] Furthermore, the bottom of the silo 1 has a support plate 2, and both sides of the support plate 2 are connected to the rotating shaft through a support 302. Both ends of the rotating shaft are rotatably mounted on the support 302, and one end of the gate 3 is fixedly connected to the rotating shaft. The rotating shaft is provided with a handle 301 connected to the output end of the driving component. In order to ensure the strength of the handle 301, the handle 301 can be welded to the top surface of the gate 3, and then the rotating shaft and the gate 3 are a linkage structure. When the driving component drives the handle 301 to move and the rotating shaft rotates, the gate 3 will move around the rotating shaft, so that the gate 3 can be opened or closed, thereby ensuring the reliability of the gate 3 in controlling the unloading of materials.

[0027] Another implementation of this embodiment is that the shaft is fixedly connected to the supports 302 at both ends, and the handle 301 has a hole rotatably connected to the shaft. In order to improve the connection strength, the gate 3 is also provided with supports 302 on both sides of the handle 301, and the supports 302 also have holes rotatably connected to the shaft. Therefore, the handle 301 and the gate 3 are an integrated structure. When the driving component drives the handle 301 to move, the gate 3 will move around the shaft so that the gate 3 can be opened or closed, thereby ensuring the reliability of the gate 3 in controlling the unloading of materials.

[0028] Furthermore, the driving assembly includes a pneumatic telescopic rod 4, a telescopic cylinder or a telescopic hydraulic cylinder. In consideration of cost, the pneumatic telescopic rod 4 may be used in this embodiment. The output end of the pneumatic telescopic rod 4 is hinged to the handle 301, and the other end is hinged to the side wall of the silo 1. Specifically, one end of the pneumatic telescopic rod 4 is hinged to the outer wall of the silo 1, and the other end is hinged to the handle 301. When the pneumatic telescopic rod 4 is extended or contracted, the pneumatic telescopic rod 4 causes the handle 301 to rotate around the rotating shaft, thereby rotating the gate plate 3. Figure 1 As shown, in order to ensure the service life of the pneumatic telescopic rod 4, a dust cover 9 is also installed at the shaft extension end of the pneumatic telescopic rod 4.

[0029] like Figure 3 and Figure 4 As shown, the silo 1 includes a barrel 101, one end of the pneumatic telescopic rod 4 is hinged to the outer wall of the barrel 101, a filter element 102 is arranged in the barrel 101, the filter element 102 is in the shape of a mesh cylinder, a plurality of negative pressure holes 8 are provided on the barrel 101, a conveying screw 6 is arranged in the filter element 102, a mounting groove is provided on the support plate 2, and a sub-screen seat 7 rotatably connected to the bottom end of the conveying screw 6 is provided in the mounting groove. The barrel 101 and the filter element 102 are provided, the negative pressure hole 8 on the barrel 101 is used to connect the negative pressure gas, the inside of the filter element 102 is used to convey the material, and the negative pressure applied in the barrel 101 can absorb the material on the inner wall of the filter element 102 through the mesh of the filter element 102, thereby compacting the material and achieving a greater loading density.

[0030] Furthermore, a hopper 5 is provided at the top of the silo 1, the bottom of the hopper 5 is connected to the filter element 102, the top of the conveying screw 6 is inserted into the hopper 5, and the diameter of the spiral blade on the conveying screw 6 is adapted to the opening at the bottom of the hopper 5, the hopper 5 is used to deliver materials, and the conveying screw 6 connects the filter element 102 and the hopper 5, so that the conveying screw 6 can convey the materials in the hopper 5 into the filter element 102, and in addition, the diameter of the spiral blade on the conveying screw 6 is adapted to the opening at the bottom of the hopper 5, so as to improve the use effect of the conveying screw 6 and improve the quality of feeding. In this embodiment, a rotating motor for driving the conveying screw 6 to move is also provided.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic discharge mechanism for lithium battery graphite powder, comprising a silo (1), the bottom of which is provided with a discharge port, characterized in that: The discharge port is provided with two gate plates (3), the ends of the gate plates (3) being away from each other are hinged to the discharge port, and the silo (1) is provided with a driving assembly for pulling the gate plates (3) to rotate along the hinge, and the discharge port is closed when the gate plates (3) are closed.

2. The automatic discharging mechanism for lithium battery graphite powder according to claim 1, characterized in that: The bottom of the silo (1) is provided with a support plate (2), both sides of the support plate (2) are rotatably connected to a rotating shaft via a support (302), one end of the gate plate (3) is fixedly connected to the rotating shaft, and a handle (301) connected to the output end of the drive assembly is provided on the rotating shaft.

3. The automatic discharging mechanism for lithium battery graphite powder according to claim 2, characterized in that: The driving assembly comprises a pneumatic telescopic rod (4), the output end of the pneumatic telescopic rod (4) being hinged to the handle (301), and the other end being hinged to the side wall of the silo (1).

4. The automatic discharging mechanism for lithium battery graphite powder according to claim 3, characterized in that: The silo (1) comprises a barrel (101), one end of the pneumatic telescopic rod (4) is hinged to the outer wall of the barrel (101), a filter element (102) is arranged in the barrel (101), the filter element (102) is in the shape of a mesh cylinder, a plurality of negative pressure holes (8) are provided on the barrel (101), a conveying screw (6) is arranged in the filter element (102), a mounting groove is provided on the support plate (2), and a screening seat (7) rotatably connected to the bottom end of the conveying screw (6) is arranged in the mounting groove.

5. The automatic discharging mechanism for lithium battery graphite powder according to claim 4, characterized in that: A hopper (5) is provided on the top of the silo (1), the bottom of the hopper (5) is connected to the filter element (102), the top end of the conveying screw (6) extends into the hopper (5), and the diameter of the spiral blades on the conveying screw (6) is adapted to the opening at the bottom of the hopper (5).

Images