A device for filling positive powder of zinc cylinder of a battery

Abstract

The utility model discloses a kind of battery zinc cylinder positive pole powder filling devices, including rack, fixedly installed powder cup on the rack, the top of the powder cup is equipped with powder outlet pressure head, the powder outlet pressure head is installed on a first servo cylinder, pressure sensor is clamped between the upper end of the powder outlet pressure head and the first servo cylinder, the bottom of the powder cup is communicated with powder outlet nozzle, the bottom of the powder outlet nozzle is equipped with zinc cylinder positioning seat, the zinc cylinder positioning seat is installed on a second servo cylinder.The utility model battery zinc cylinder positive pole powder filling device, compared with the filling structure of traditional disposable powder filling, disposable compaction, it can gradually fill powder, layer by layer compaction, can effectively avoid lower air difficult to escape, and cause lower positive pole powder than upper positive pole powder loose problem, so that the filling of positive pole powder in zinc cylinder is more uniform, and battery discharge performance is better.

Description

Technical Field

[0001] This utility model relates to the field of battery production equipment technology, and in particular to a battery zinc cylinder positive electrode powder filling device. Background Technology

[0002] In automated dry cell production lines, the quantitative and uniform filling and pressing of positive electrode active powder into the zinc cylinder shell is a crucial process that determines battery capacity, internal resistance, and consistency. Existing small-batch or experimental filling equipment often employs a "one-time powder feeding—one-time compaction" model: for example, the scheme disclosed in Chinese patent application CN218602481U, where a pusher, a guide tube, and a zinc cylinder support are arranged sequentially from top to bottom. After the guide tube injects the positive electrode powder into the zinc cylinder in one go, the pusher directly extends into the cylinder to complete the compaction. While this structure is simple and compact, it has the following drawbacks in practical use: the large powder filling height and long compaction stroke lead to significant axial pressure attenuation, resulting in a "tight at the top and loose at the bottom" density gradient and poor uniformity; furthermore, the dense layer forms first in the upper part, making it difficult for air to escape between particles in the lower part, easily leaving voids or delamination, thus reducing battery discharge performance. Utility Model Content

[0003] The purpose of this invention is to provide a battery zinc cylinder positive electrode powder filling device.

[0004] The technical solution to achieve the purpose of this utility model is: a battery zinc cylinder positive electrode powder filling device, including a frame, a powder cup fixedly installed on the frame, a powder dispensing pressure head provided directly above the powder cup, the diameter of the powder dispensing pressure head being consistent with the inner diameter of the powder cup, the powder dispensing pressure head being mounted on a first servo cylinder and driven by the first servo cylinder to be raised and lowered, a pressure sensor being sandwiched between the upper end of the powder dispensing pressure head and the first servo cylinder, a powder dispensing nozzle being connected to the bottom of the powder cup, the inner diameter of the powder dispensing nozzle being smaller than the inner diameter of the powder cup, a zinc cylinder positioning seat being provided directly below the powder dispensing nozzle, the outer diameter of the powder dispensing nozzle being consistent with the inner diameter of the zinc cylinder, the zinc cylinder positioning seat being mounted on a second servo cylinder and driven by the second servo cylinder to be raised and lowered, the first servo cylinder, the pressure sensor and the second servo cylinder being electrically connected to the same control unit respectively.

[0005] Furthermore, the length of the powder outlet nozzle along the height direction is not less than the axial length of the zinc cylinder.

[0006] Furthermore, a mounting groove is provided on the upper end face of the powder dispensing head, and the pressure sensor is located in the mounting groove. The mounting groove can limit and protect the pressure sensor.

[0007] Furthermore, the first servo electric cylinder is vertically mounted on the frame.

[0008] Furthermore, the second servo electric cylinder is vertically mounted on the frame.

[0009] Furthermore, the control unit is a microcontroller system or a PLC control system.

[0010] This utility model relates to a battery zinc cylinder positive electrode powder filling device. It includes a powder cup, a powder dispensing head that matches the powder cup, and a powder dispensing nozzle at the bottom of the powder cup that mates with the zinc cylinder on the zinc cylinder positioning seat. Combined with a first servo cylinder driving the powder dispensing head to rise and fall, a second servo cylinder driving the zinc cylinder positioning seat to rise and fall, and a pressure sensor sandwiched between the upper end of the powder dispensing head and the first servo cylinder, the device allows the positive electrode powder in the powder cup to be dispensed when the powder dispensing head descends and extends into the powder cup. The powder can be pressed into the zinc cylinder on the zinc cylinder positioning seat along the powder outlet nozzle. During this operation, the pressure sensor can sense the pressure signal of the powder outlet head in real time. Based on the pressure signal sensed by the powder outlet head, the control unit can control the first servo cylinder and the second servo cylinder to move, so that the powder outlet head and the zinc cylinder on the zinc cylinder positioning seat gradually move downward. The positive electrode powder in the powder cup is pressed into and compacted into the zinc cylinder bit by bit. The compaction degree of each layer of positive electrode powder in the zinc cylinder from bottom to top is consistent and the uniformity is high.

[0011] Compared with the traditional one-time filling and compaction structure, the battery zinc cylinder positive electrode powder filling device of this utility model can fill powder gradually and compact layer by layer, which can effectively avoid the problem that the lower positive electrode powder is looser than the upper positive electrode powder due to the difficulty of air escaping. The filling of positive electrode powder in the zinc cylinder is more uniform and the battery discharge performance is better. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of the battery zinc cylinder positive electrode powder filling device of this utility model; Figure 2 This is a side view of the battery zinc cylinder positive electrode powder filling device of this utility model; Figure 3 This is a schematic diagram of the battery zinc cylinder positive electrode powder filling device of this utility model, excluding the frame; Figure 4 This is a schematic diagram of the control structure of the battery zinc cylinder positive electrode powder filling device of this utility model. Detailed Implementation

[0013] The preferred embodiment of the battery zinc cylinder positive electrode powder filling device of this utility model will be described in detail below with reference to the accompanying drawings: like Figures 1 to 4As shown, a battery zinc cylinder positive electrode powder filling device includes a frame 10, on which a powder cup 1 is fixedly installed. A powder dispensing head 2 is provided directly above the powder cup 1. The diameter D2 of the powder dispensing head 2 is consistent with the inner diameter D1 of the powder cup 1. The powder dispensing head 2 is mounted on a first servo cylinder 3 and can be raised and lowered by the first servo cylinder 3. A pressure sensor 4 is sandwiched between the upper end of the powder dispensing head 2 and the first servo cylinder 3. A powder dispensing nozzle 11 is connected to the bottom of the powder cup 1. The inner diameter D3 of the powder dispensing nozzle 11 is smaller than the inner diameter D1 of the powder cup 1. A zinc cylinder positioning seat 5 is provided directly below the powder dispensing nozzle 11. The outer diameter D4 of the powder dispensing nozzle 11 is consistent with the inner diameter D5 of the zinc cylinder 100. The zinc cylinder positioning seat 5 is mounted on a second servo cylinder 6 and can be raised and lowered by the second servo cylinder 6. The first servo cylinder 3, the pressure sensor 4, and the second servo cylinder 6 are all electrically connected to the same control unit 7.

[0014] This utility model relates to a battery zinc cylinder positive electrode powder filling device. The powder dispensing head 2, the powder cup 1, the powder dispensing nozzle 11, and the zinc cylinder positioning seat 5 are coaxial. The powder cup 1 is used to hold the positive electrode powder. The upper end of the powder dispensing head 2 is mounted on the first servo cylinder 3 and is driven by the first servo cylinder 3 to rise and fall. The diameter D2 of the powder dispensing head 2 is consistent with the inner diameter D1 of the powder cup 1. After the powder dispensing head 2 descends and rises into the powder cup 1, it is used to press the positive electrode powder in the powder cup 1 out through the powder dispensing nozzle 11. The upper end of the powder dispensing head 2 is fixed to the first servo cylinder 3. A pressure sensor 4 is clamped between the upper end of the powder dispensing head 2 and the first servo cylinder 3, and contacts the upper end of the powder dispensing head 2 and the first servo cylinder 3. The pressure sensor 4 is used to detect the pressure of the powder dispensing head 2. The zinc cylinder positioning seat 5 is mounted on a second servo cylinder. On the 6th, driven by the second servo cylinder 6, it can be raised and lowered. The zinc cylinder positioning seat 5 is used to fix the zinc cylinder 100. The inner diameter D3 of the powder outlet nozzle 11 is smaller than the inner diameter D1 of the powder cup 1. The outer diameter D4 of the powder outlet nozzle 11 is consistent with the inner diameter D5 of the zinc cylinder 100. The powder outlet nozzle 11 is used to extend into the zinc cylinder on the zinc cylinder positioning seat 5 to introduce the positive electrode powder inside into the zinc cylinder. The first servo cylinder 3, the pressure sensor 4 and the second servo cylinder 6 are all electrically connected to the same control unit 7. The pressure sensor 4 detects the pressure signal of the powder outlet pressure head 2 and transmits the pressure signal to the control unit 7. The control unit 7 controls the first servo cylinder 3 and the second servo cylinder 6 to operate.

[0015] In operation, the zinc cylinder 100 is fixed to the zinc cylinder positioning seat 5, and positive electrode powder is filled into the powder cup 1. Then, the control unit 7 controls the second servo cylinder 6 to move, driving the zinc cylinder positioning seat 5 and the zinc cylinder 100 upward, so that the powder outlet nozzle 11 extends into the zinc cylinder 100, with the lower end of the powder outlet nozzle 11 close to the bottom of the zinc cylinder 100. The control unit 7 controls the first servo cylinder 3 to move, driving the powder outlet pressure head 2 downward, extending into the powder cup 1, and pressing the positive electrode powder in the powder cup 1 out along the powder outlet nozzle 11 and into the zinc cylinder 100. During the process of the powder dispensing head 2 pressing the positive electrode powder in the powder cup 1 into the zinc cylinder 100, the pressure sensor 4 senses the pressure signal of the powder dispensing head 2 in real time and transmits the sensed pressure signal to the control unit 7. The control unit 7 controls the first servo cylinder 3 and the second servo cylinder 6 to operate according to the received pressure signal of the powder dispensing head 2. If the pressure signal of the powder dispensing head 2 received by the control unit 7 reaches a set value, the control unit 7 controls the first servo cylinder 3 and the second servo cylinder 6 to operate. The second servo cylinder 6 actuates, causing the powder dispensing head 2, the zinc cylinder positioning seat 5, and the zinc cylinder 100 thereon to gradually descend. As the powder dispensing head 2 descends, it continuously presses the positive electrode powder from the powder cup 1 into the zinc cylinder 100. As the amount of positive electrode powder pressed and compacted into the zinc cylinder 100 gradually increases, the zinc cylinder positioning seat 5 and the zinc cylinder 100 thereon gradually descend, creating space between the zinc cylinder 100 and the powder dispensing nozzle 11. This allows the descending powder dispensing head 2 to gradually press the positive electrode powder from the powder cup 1 into the zinc cylinder 100. In this way, the positive electrode powder is simultaneously filled and pressed into the zinc cylinder 100. After the zinc cylinder 100 is filled with positive electrode powder, the control unit 7 controls the first servo cylinder 3 and the second servo cylinder 6 to actuate, causing the powder dispensing head 2, the zinc cylinder positioning seat 5, and the zinc cylinder 100 thereon to return and reset. Then, the zinc cylinder 100 filled with powder can be removed.

[0016] In this utility model battery zinc cylinder positive electrode powder filling device, after each powder filling operation, there is still positive electrode powder in the powder outlet 11 that has not been pressed out. The positive electrode powder has a high moisture content. The positive electrode powder that has not been pressed out in the powder outlet 11 has been compacted and clumped during the previous powder filling operation. After the zinc cylinder 100 is removed from the powder outlet 11, the positive electrode powder in the powder outlet 11 will not fall out. It can be filled in the next zinc cylinder 100.

[0017] This utility model relates to a battery zinc cylinder positive electrode powder filling device. It comprises a powder cup 1, a powder dispensing head 2 that matches the powder cup 1, and a powder dispensing nozzle 11 located at the bottom of the powder cup 1 that cooperates with the zinc cylinder on the zinc cylinder positioning seat 5. Combined with a first servo cylinder 3 driving the powder dispensing head 2 to rise and fall, a second servo cylinder 6 driving the zinc cylinder positioning seat 5 to rise and fall, and a pressure sensor 4 sandwiched between the upper end of the powder dispensing head 2 and the first servo cylinder 3, when the powder dispensing head 2 descends and extends into the powder cup 1, the positive electrode powder in the powder cup 1 can be... The powder is pressed into the zinc cylinder on the zinc cylinder positioning seat 5 along the powder outlet nozzle 11. During this operation, the pressure sensor 4 can sense the pressure signal of the powder outlet head 2 in real time. Based on the pressure signal sensed by the powder outlet head 2, the control unit 7 can control the first servo cylinder 3 and the second servo cylinder 6 to move, so that the powder outlet head 2 and the zinc cylinder on the zinc cylinder positioning seat 5 gradually move downward. The positive electrode powder in the powder cup 1 is pressed into and compacted into the zinc cylinder 100 bit by bit. The compaction degree of each layer of positive electrode powder in the zinc cylinder 100 from bottom to top is consistent and the uniformity is high.

[0018] Compared with the traditional one-time filling and compaction structure, the positive electrode powder filling device of this utility model can fill powder gradually and compact layer by layer, which can effectively avoid the problem that the lower positive electrode powder is looser than the upper positive electrode powder due to the difficulty of air escaping. The positive electrode powder filling in the zinc cylinder 100 is more uniform, and the battery discharge performance is better.

[0019] In this utility model of a battery zinc cylinder positive electrode powder filling device, preferably, the length H1 of the powder outlet nozzle 11 along the height direction is not less than the axial length H2 of the zinc cylinder 100. This arrangement allows the powder outlet nozzle 11 to easily extend into the bottom of the zinc cylinder 100, enabling gradual filling from the bottom of the zinc cylinder 100.

[0020] In this utility model of a battery zinc cylinder positive electrode powder filling device, preferably, the length H1 of the powder outlet 11 along the height direction is consistent with the axial length H2 of the zinc cylinder 100. This arrangement can reduce the amount of positive electrode powder remaining in the powder outlet 11.

[0021] In this utility model of a battery zinc cylinder positive electrode powder filling device, preferably, the upper end face of the powder dispensing head 2 is provided with a mounting groove 21, and the pressure sensor 4 is located in the mounting groove 21. The mounting groove 21 can limit and protect the pressure sensor 4.

[0022] In this utility model battery zinc cylinder positive electrode powder filling device, preferably, the first servo electric cylinder 3 is vertically mounted on the frame 10.

[0023] In this utility model battery zinc cylinder positive electrode powder filling device, preferably, the second servo electric cylinder 6 is vertically mounted on the frame 10.

[0024] In this utility model battery zinc cylinder positive electrode powder filling device, preferably, the control unit 7 is a single-chip microcomputer system or a PLC control system.

[0025] The present invention relates to a battery zinc cylinder positive electrode powder filling device. The zinc cylinder positioning seat 5 is a cup-shaped structure. The zinc cylinder positioning seat 5, the first servo cylinder 3, the second servo cylinder 6, the pressure sensor 4, and the control unit 7 are all existing structures, and will not be elaborated further in this application.

[0026] For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model, and all such deductions or substitutions should be considered to fall within the protection scope of this utility model.

Claims

1. A battery zinc canister positive electrode powder filling device, comprising a frame, characterized in that: A powder cup is fixedly mounted on the frame. A powder dispensing head is located directly above the powder cup, and the diameter of the powder dispensing head is the same as the inner diameter of the powder cup. The powder dispensing head is mounted on a first servo cylinder and can be raised and lowered by the first servo cylinder. A pressure sensor is sandwiched between the upper end of the powder dispensing head and the first servo cylinder. A powder dispensing nozzle is connected to the bottom of the powder cup, and the inner diameter of the powder dispensing nozzle is smaller than the inner diameter of the powder cup. A zinc cylinder positioning seat is located directly below the powder dispensing nozzle, and the outer diameter of the powder dispensing nozzle is the same as the inner diameter of the zinc cylinder. The zinc cylinder positioning seat is mounted on a second servo cylinder and can be raised and lowered by the second servo cylinder. The first servo cylinder, the pressure sensor, and the second servo cylinder are all electrically connected to the same control unit.

2. The battery zinc cylinder positive electrode powder filling device according to claim 1, characterized in that: The length of the powder outlet nozzle along the height direction is not less than the axial length of the zinc cylinder.

3. The battery zinc cylinder positive electrode powder filling device according to claim 1, characterized in that: The upper end face of the powder dispensing head is provided with a mounting groove, and the pressure sensor is located in the mounting groove.

4. The battery zinc cylinder positive electrode powder filling device according to claim 1, characterized in that: The first servo electric cylinder is vertically mounted on the frame.

5. The battery zinc cylinder positive electrode powder filling device according to claim 1, characterized in that: The second servo electric cylinder is vertically mounted on the frame.

6. The battery zinc cylinder positive electrode powder filling device according to claim 1, characterized in that: The control unit is a microcontroller system or a PLC control system.

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