Demagnetizing device for positive electrode material

Abstract

The utility model discloses a demagnetizing device for a positive electrode material. The demagnetizing device comprises a conveying belt, a fixing piece and a demagnetizing device, a hinge seat and a limiting seat are arranged on the fixing part, a movable opening is formed in the hinge seat, a movable part is arranged in the movable opening, a limiting opening is formed in the middle of the limiting seat, the lower end of the movable part is arranged in the limiting opening, and a contact sensor is arranged in the limiting opening. According to the demagnetizing device for the positive electrode material, through cooperation of the hinge seat, the limiting seat and the movable part, the demagnetizing device can be limited, so that the demagnetizing device does not deviate, meanwhile, a contact sensor is arranged on the limiting seat, whether a magnetic substance is added to the demagnetizing device or not can be effectively reflected, and when the magnetic substance is increased to a certain weight, the demagnetizing device is prevented from being damaged. And the mounting rod is in contact with the release sensor to send out a signal, so that a worker can replace the demagnetizer or clean the demagnetizer in time. And the removal efficiency of the magnetic substances in the positive electrode material can be effectively improved.

Description

Technical Field

[0001] The utility model relates to a demagnetization technology, in particular to a demagnetization device for a cathode material. Background Art

[0002] As a cathode material for lithium batteries, lithium iron phosphate has gradually developed into the most mainstream cathode material for lithium batteries with the maturity of production technology and is widely used in power and energy storage batteries. However, the magnetic substances in lithium iron phosphate will cause problems such as large self-discharge or deposition on the negative electrode in lithium iron phosphate batteries, thus affecting the battery life and safety performance. Therefore, the control of the content of magnetic substances in lithium iron phosphate has always been the key control content in the production process of lithium iron phosphate. After the demagnetizer attracts a certain amount of magnetic substances, the end facing the cathode material will thicken, resulting in a decrease in magnetism, affecting the attraction of magnetic substances, leading to a decrease in magnetic force and affecting the demagnetization effect. Content of the Utility Model

[0003] In order to solve the defects existing in the above-mentioned prior art, the utility model provides a demagnetization device for a cathode material.

[0004] The technical solution of the utility model is realized as follows:

[0005] A demagnetization device for a cathode material, characterized by comprising:

[0006] A conveyor belt, the conveyor belt is arranged in an arc shape,

[0007] A fixing member arranged at the upper end of the conveyor belt, the fixing member is provided with a hinge seat and a limit seat, both the hinge seat and the limit seat are installed on the fixing member through bolts, the hinge seat is provided with a movable opening, the inner wall of the movable opening is provided with a hinge hole, a movable member is arranged in the movable opening, the movable member is installed in the hinge hole through a hinge shaft, a limit opening is arranged in the middle of the limit seat, the lower end of the movable member is placed in the limit opening, a contact sensor is arranged in the limit opening, and a first spring is sleeved on the contact sensor.

[0008] And a demagnetizer arranged at the upper end of the conveyor belt, the demagnetizer is provided with symmetrical support parts, an installation rod is arranged in the middle of the support parts, the installation rod is placed in the limit opening, and the installation rod is placed on the first spring.

[0009] In the demagnetization device for a cathode material of the utility model, the movable member is provided with a limiting surface, and the movable opening is provided with a blocking surface matching the limiting surface.

[0010] In the demagnetization device for a cathode material of the utility model, the movable member is provided with a first arc-shaped opening.

[0011] In the demagnetizing device for the positive electrode material of the present utility model, a second arc-shaped opening is further provided on the movable member.

[0012] In the demagnetizing device for the positive electrode material of the present utility model, a second spring is provided on the fixed member, one end of the second spring remains connected to the fixed member, and the other end remains connected to the movable member.

[0013] In the demagnetizing device for the positive electrode material of the present utility model, an inlet for the mounting rod is formed between the hinge seat and the limit seat, a first guiding surface is provided on the hinge seat, and a second guiding surface is provided on the limit seat.

[0014] In the demagnetizing device for the positive electrode material of the present utility model, a positioning hole is provided on the mounting rod, and a positioning rod cooperating with the positioning hole is provided on the contact sensor.

[0015] In the demagnetizing device for the positive electrode material of the present utility model, an inner arc-shaped opening is formed at the lower end of the demagnetizer, and a plurality of receiving grooves are provided on the inner wall of the inner arc-shaped opening.

[0016] Implementing the demagnetizing device for the positive electrode material of the present utility model has the following beneficial effects: The demagnetizing device for the positive electrode material can limit the demagnetizer through the cooperation of the hinge seat, the limit seat and the movable member, so that the demagnetizer will not shift in position. At the same time, a contact sensor is provided on the limit seat, which can effectively detect whether magnetic substances are added to the demagnetizer. When the magnetic substances increase to a certain weight, the mounting rod contacts the release sensor and sends a signal, prompting the staff to replace the demagnetizer in time or clean the demagnetizer, which can effectively improve the removal efficiency of magnetic substances in the positive electrode material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the demagnetizing device for the positive electrode material of the present utility model;

[0018] Figure 2 is Figure 1 a partial structural cross-sectional view of

[0019] Figure 3 is Figure 2 an exploded view of the hinge seat, the limit seat and the movable member in

[0020] Figure 4 is Figure 3 a schematic structural diagram of the hinge seat in

[0021] Figure 5 is Figure 3 a schematic structural diagram of the movable member in

[0022] Figure 6 is Figure 3Schematic diagram of the demagnetizer structure;

[0023] Figure 7 for Figure 3 Schematic diagram of the limit seat structure. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0025] like Figures 1 to 7 As shown, the demagnetization device for positive electrode materials of the present invention includes a conveyor belt 1, a fixing member 2, and a demagnetizer 3. The conveyor belt 1 is used to convey the positive electrode materials, while the fixing member 2 is used to mount the demagnetizer 3, so that the demagnetizer 3 can attract the magnetic substances in the positive electrode materials on the conveyor belt 1, thereby achieving the effect of demagnetizing the positive electrode materials.

[0026] The conveyor belt 1 is arranged in an arc shape, and the fixing part 2 is arranged at the upper end of the conveyor belt 1. The fixing part 2 is provided with a hinge seat 4 and a limit seat 5. The hinge seat 4 and the limit seat 5 are both mounted on the fixing part 2 by bolts 6. A movable opening 7 is provided on the hinge seat 4, and a hinge hole 8 is provided on the inner wall of the movable opening 7. A movable part 9 is provided in the movable opening 7, and the movable part 9 is installed in the hinge hole 8 through a hinge shaft 10. A limiting surface 11 is provided on the movable part 9, and a blocking surface 12 that cooperates with the limiting surface 11 is provided in the movable opening 7. The blocking surface 12 is used to limit the rotation angle of the movable part 9 so that the lower end of the movable part 9 can allow the installation rod 13 to pass through. A first arc opening 14 is provided on the movable part 9, and a second arc opening 15 is also provided on the movable part 9. The first arc opening 14 is used for the installation rod 13 to push the lower end of the movable part 9 so that the movable part 9 rotates around the hinge shaft 10. The second arc-shaped opening 15 is used to limit the position of the installation rod 13 to prevent the installation rod 13 from escaping from the limiting opening 16 .

[0027] A second spring 17 is provided on the fixing member 2, one end of the second spring 17 being connected to the fixing member 2 and the other end being connected to the movable member 9. The second spring 17 is used to keep the movable member 9 in a state where the lower end of the movable member 9 is always at the upper end of the limiting opening 16 when no external force is applied, thereby limiting the mounting rod 13.

[0028] A limit opening 16 is provided in the middle of the limit seat 5, and the lower end of the movable member 9 is placed in the limit opening 16. A contact sensor 18 is provided in the limit opening 16, and a first spring 19 is sleeved on the contact sensor 18. A fixing hole 20 for installing the contact sensor 18 is provided in the limit opening 16.

[0029] The demagnetizer 3 is arranged at the upper end of the conveyor belt 1 . A symmetrical support portion 21 is provided on the demagnetizer 3 . A mounting rod 13 is provided in the middle of the support portion 21 . The mounting rod 13 is placed in the limit opening 16 and on the first spring 19 .

[0030] A guiding inlet 22 for the mounting rod 13 is formed between the hinge seat 4 and the limiting seat 5. A first guiding surface 23 is provided on the hinge seat 4, and a second guiding surface 24 is provided on the limiting seat 5.

[0031] A positioning hole 25 is provided on the mounting rod 13, and a positioning rod 26 that cooperates with the positioning hole 25 is provided on the contact sensor 18. The cooperation between the positioning rod 26 and the positioning hole 25 prevents the mounting rod 13 from shifting in position during downward movement.

[0032] The lower end of the demagnetizer 3 forms an inner arc opening 27, and a plurality of receiving grooves 28 are provided on the inner wall of the inner arc opening 27. More magnetic substances can be received through the receiving grooves 28. After the demagnetizer 3 attracts a certain weight of magnetic material, the weight of the demagnetizer 3 will increase, causing the mounting rod 13 to press on the first spring 19, keeping the first spring 19 compressed, so that the mounting rod 13 moves downward, maintaining contact between the mounting rod 13 and the contact sensor 18, thereby prompting the staff that the demagnetizer 3 has reached the maximum demagnetization state and can no longer attract magnetic substances, and needs to be replaced in time. If it is not replaced or cleaned in time, the magnetism of the demagnetizer 3 will decrease, and it can no longer attract magnetic substances, resulting in the magnetic substances in the passing positive electrode material not being processed, affecting the normal use of the positive electrode material and the service life of the subsequent battery.

[0033] When removing the demagnetizer, pull the movable part so that the limiting surface on the movable part contacts the blocking surface, so that the second arc opening no longer restricts the limiting opening, and the mounting rod can be removed from the limiting opening to clean the magnetic substances on the demagnetizer.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A demagnetizing device for a cathode material, characterized in that, Including: A conveyor belt, the conveyor belt is arranged in an arc shape, A fixing member arranged at the upper end of the conveyor belt, the fixing member is provided with a hinge seat and a limit seat, both the hinge seat and the limit seat are installed on the fixing member by bolts, the hinge seat is provided with a movable opening, the inner wall of the movable opening is provided with a hinge hole, a movable member is arranged in the movable opening, the movable member is installed in the hinge hole through a hinge shaft, a limit opening is arranged in the middle of the limit seat, the lower end of the movable member is placed in the limit opening, a contact sensor is arranged in the limit opening, and a first spring is sleeved on the contact sensor. And a demagnetizer arranged at the upper end of the conveyor belt, the demagnetizer is provided with symmetric support parts, an installation rod is arranged in the middle of the support parts, the installation rod is placed in the limit opening, and the installation rod is placed on the first spring.

2. The demagnetization device for the cathode material according to claim 1, characterized in that The movable member is provided with a limiting surface, and the movable opening is provided with a blocking surface that cooperates with the limiting surface.

3. The demagnetization device for the cathode material according to claim 1, characterized in that, The movable member is provided with a first arc-shaped opening.

4. The demagnetization device for the positive electrode material according to claim 1, characterized in that, The movable member is also provided with a second arc-shaped opening.

5. The demagnetization device for the cathode material according to claim 1, characterized in that, The fixing member is provided with a second spring, one end of the second spring remains connected to the fixing member, and the other end remains connected to the movable member.

6. The demagnetization device for the cathode material according to claim 1, characterized in that, A guiding inlet for the installation rod is formed between the hinge seat and the limit seat, the hinge seat is provided with a first guiding surface, and the limit seat is provided with a second guiding surface.

7. The demagnetization device for the positive electrode material according to claim 1, characterized in that The installation rod is provided with a positioning hole, and the contact sensor is provided with a positioning rod that cooperates with the positioning hole.

8. The demagnetization device for the cathode material according to claim 1, characterized in that, The lower end of the demagnetizer forms an inner arc opening, and a plurality of receiving grooves are arranged on the inner wall of the inner arc opening.

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