Conductive slurry grinding device

Abstract

The invention is suitable for the technical field of conductive slurry preparation, and provides a conductive slurry grinding device which comprises a grinding base assembly, the grinding base assembly comprises a horizontally-arranged base, and a motor bin and a supporting arc plate are installed at the top of the base; a grinding driving assembly is arranged in the motor bin, a grinding assembly is connected to the side wall of the side, close to the supporting arc plate, of the motor bin, and feeding and discharging assemblies are arranged at the two ends of the grinding assembly. And the grinding driving assembly comprises a grinding motor which is horizontally arranged. The device solves the problems that the grinding quality and efficiency are affected due to agglomeration of conductive paste carbon nanotube powder particles during grinding, and the grinding device cannot treat conductive paste with different finenesses, and achieves the purpose that the grinding quality and efficiency are improved by improving the feeding uniformity degree and matching premixing treatment before grinding. The probability of agglomeration caused by overlarge specific surface area of carbon nanotube powder particles is reduced, and meanwhile, the distance between the grinding discs is adjusted during grinding, so that the cycle time required for grinding the conductive slurry is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of conductive slurry preparation, and more specifically, to a conductive slurry grinding device. Background Art

[0002] Conductive paste is a key material in the production of lithium-ion batteries. It is usually composed of conductive powder, binder and solvent. Carbon nanotube conductive paste is a paste formed by dispersing carbon nanotubes in a solvent through a specific preparation process using the excellent conductive properties of carbon nanotubes. It is widely used in energy storage devices such as lithium-ion batteries and supercapacitors.

[0003] In the preparation process of carbon nanotube conductive slurry, it is necessary to first mix carbon nanotubes with solvents and dispersants, disperse them through mechanical stirring, ultrasonic treatment or high shear force homogenizer to form a slurry, and then further grind the conductive slurry to make the dispersibility, fineness, uniformity and other aspects of the conductive slurry meet the production requirements. Among them, the dispersibility of the conductive slurry is an important indicator for evaluating the performance of the slurry. Although the contact between the grinding medium (such as zirconium beads) and the conductive slurry can be driven by the rotation of the grinding disc during the grinding process to improve its dispersibility and fineness. However, in order to meet the requirements of lithium-ion battery production and manufacturing for the performance of the conductive slurry, it is often necessary to conduct quality inspections on the solid content, fineness, viscosity, resistivity and dispersibility of the ground conductive slurry after grinding, and then repeat the grinding cycle to ensure that the performance of the conductive slurry fully meets the production requirements. The more cycles, the greater the impact on the production cost of the conductive slurry and the quality of the finished product.

[0004] During the grinding process, due to the large specific surface area of ​​carbon nanotube powder particles, it is easy to form agglomerates in the slurry, which will further reduce the dispersibility of the conductive slurry and also cause a decrease in the fineness after grinding to a certain extent.

[0005] On the other hand, the process of grinding the conductive slurry in the grinding device is a process of gradually refining the conductive slurry. In the existing grinding device, the spacing between the grinding discs is fixed during the grinding process. When grinding conductive slurries of different finenesses, the force of the grinding medium between the grinding discs and the collision frequency and force with the conductive slurry are consistent. Therefore, the grinding time of conductive slurries of different finenesses will also be different. The fixed spacing between the grinding discs means that the grinding device cannot grade the conductive slurry according to its fineness, which leads to an increase in the overall cycle time required for grinding the conductive slurry, and ultimately an increase in the production cost of the conductive slurry. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a conductive slurry grinding device which reduces the probability of agglomeration of carbon nanotube powder particles due to excessive specific surface area by improving the uniformity of feed and pre-mixing treatment before grinding, and adjusts the spacing between grinding discs during the grinding process to perform graded treatment on conductive slurries of different finenesses, thereby reducing the cycle time required for grinding the conductive slurry and reducing its grinding cost.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A conductive slurry grinding device includes a grinding base assembly, including a grinding base assembly, wherein the grinding base assembly includes a horizontally arranged base, and a grinding assembly is arranged on the top of the base; wherein the grinding assembly includes a grinding cylinder connected to the side wall of a motor compartment, a grinding spindle coaxially arranged with the grinding motor, and multiple groups of grinding discs sleeved on the grinding spindle, and an adjustment slide groove is opened on the grinding spindle, and two groups of spacing adjustment assemblies are arranged inside the adjustment slide groove, and each group of the spacing adjustment assemblies includes a mounting plate arranged inside the grinding spindle, an adjustment slide rail arranged on the side wall of the mounting plate, multiple groups of adjustment assemblies slidably connected to the adjustment slide rail, and an adjustment drive arranged at the bottom of the adjustment assembly.

[0009] The present invention is further configured as follows: a motor bin and a supporting arc plate are installed on the top of the base, a grinding drive assembly is arranged inside the motor bin, and a side wall close to the supporting arc plate is connected to the grinding assembly, the grinding drive assembly includes a horizontally arranged grinding motor, the grinding motor is installed inside the motor bin, and a motor shaft is arranged at one end close to the grinding assembly, a connecting disk is provided at the end of the motor shaft, and a grinding spindle is plugged into the connecting disk.

[0010] The present invention is further configured as follows: the grinding cylinder is configured as a hollow cylindrical structure and is coaxially arranged with the grinding spindle, the grinding spindle is connected to a discharge head at one end away from the motor bin, the grinding disc is configured as a hollow circular ring structure and is provided with a material passing through hole, and the discharge head is configured as a cylindrical structure and is provided with multiple groups of discharge troughs.

[0011] The present invention is further configured as follows: the adjustment component comprises an adjustment block configured as a rectangular structure, a limiting groove is provided on a side of the adjustment block close to the grinding disc, and the grinding disc is inserted into the limiting groove.

[0012] The present invention is further configured as follows: the middle portion of each group of the adjustment blocks is rotatably connected to two groups of matching scissor rods, and the ends of each group of the matching scissor rods are rotatably connected to the ends of another group of matching scissor rods.

[0013] The present invention is further configured as follows: the adjustment drive includes an adjustment motor installed on the side wall of the mounting plate, an adjustment pulley is provided at the output end of the adjustment motor, a connecting piece is provided on the adjustment pulley, and the side wall of the connecting piece is connected to the side wall of the adjustment block.

[0014] The technical solution adopted by the present invention to solve its technical problem is: the grinding disc on the grinding spindle is connected with two sets of spacing adjustment components to form different rough grinding areas and fine grinding areas. After the conductive slurry enters the grinding cylinder, it is first ground in the rough grinding area. During the grinding process, it gradually passes through the material passing hole on the grinding disc to enter the fine grinding area. After completing the grinding in the fine grinding area, it continues to pass through the discharge groove on the discharge head to enter the inside of the discharge sleeve, and finally completes the discharge through the discharge pipe.

[0015] The present invention is further configured as follows: feed and discharge assemblies are arranged at both ends of the grinding assembly, and the feed and discharge assemblies include a feed assembly arranged at one end of the grinding cylinder close to the motor bin and a discharge sleeve arranged at one end of the grinding cylinder away from the motor bin, and the discharge head is arranged inside the discharge sleeve and coaxially arranged with the discharge sleeve.

[0016] The present invention is further configured as follows: the feed assembly includes a feed pipe that passes through the grinding cylinder, the bottom of the feed pipe is connected to a dispersion ring pipe with a circular ring structure, the dispersion ring pipe is arranged around the grinding spindle, and a plurality of discharge nozzles are equidistantly arranged on the side wall close to the center.

[0017] The present invention is further configured as follows: the discharge sleeve is configured as a hollow cylindrical structure, and a discharge pipe is provided on the side wall thereof away from the grinding spindle, the discharge pipe penetrates the discharge sleeve and is connected to the inside of the discharge sleeve.

[0018] The present invention is further configured as follows: a pre-mixing assembly is sleeved on one end of the adjustment slide near the grinding motor, and the pre-mixing assembly includes a stirring sleeve sleeved on the outer wall of the grinding spindle, and a plurality of groups of stirring rods are arranged around the stirring sleeve, and a group of stirring arc plates with a circular arc structure are connected to the end of each group of stirring rods.

[0019] The technical solution adopted by the present invention to solve its technical problem is: before grinding, the conductive slurry first enters the interior of the dispersion ring tube through a feed pipe, and then flows out from multiple groups of discharge nozzles arranged around the dispersion ring tube. During the rotation of the stirring sleeve following the grinding main shaft, the stirring arc plate is synchronously driven to stir the conductive slurry.

[0020] The beneficial effects of the present invention are:

[0021] 1. Use two sets of spacing adjustment components to connect multiple sets of grinding discs, divide the grinding discs into zones, and then use the adjustment block to slide along the adjustment rail to adjust the spacing between the grinding discs, so as to form coarse grinding zone and fine grinding zone with different collision force and collision frequency of the grinding medium; in the subsequent cyclic grinding process, the spacing between the grinding discs in the coarse grinding zone and the fine grinding zone can be adjusted according to the results of quality inspection using the two sets of spacing adjustment components.

[0022] 2. After the conductive slurry is ground into a conductive slurry with smaller fineness in the coarse grinding area, it enters the fine grinding area for grinding. Due to the different spacing, the coarse grinding area and the fine grinding area can make the collision force and collision frequency of the grinding medium different while the grinding disc maintains the same rotation speed, so as to carry out graded and zoned grinding for the conductive slurry of different fineness, effectively reducing the time required for the overall grinding of the conductive slurry, so as to achieve the purpose of improving grinding efficiency and reducing production costs.

[0023] 3. Before grinding, the stirring arc plate and the discharge nozzle are used together to make the stirring arc plate fully and evenly stir the conductive slurry, thereby eliminating the agglomeration of the conductive slurry due to the excessive specific surface area of ​​the particles, ensuring that the dispersion and fineness of the conductive slurry in the subsequent grinding process are not disturbed by the agglomeration, thereby improving the quality and efficiency of the conductive slurry grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a schematic structural diagram of the conductive slurry polishing device of the present invention.

[0026] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the conductive slurry grinding device shown.

[0027] Figure 3 for Figure 2 The schematic diagram of the structure of the grinding component in the conductive slurry grinding device is shown.

[0028] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the grinding assembly in the conductive slurry grinding device shown.

[0029] Figure 5 for Figure 4 A schematic structural diagram of the spacing adjustment component shown.

[0030] Figure 6 for Figure 5 Schematic diagram of the exploded structure of the spacing adjustment component shown.

[0031] Figure 7 for Figure 5A schematic structural diagram of another state of the spacing adjustment component is shown.

[0032] Figure 8 for Figure 4 A cross-sectional view of the interior of the grinding spindle in the grinding assembly is shown.

[0033] Fig. 9 for Figure 4 Schematic diagram of the structure of the grinding disc in the grinding assembly shown.

[0034] Fig.10 for Figure 4 The schematic diagram of the structure of the discharge head of the grinding assembly is shown.

[0035] Fig.11 for Figure 2 The schematic diagram of the structure of the grinding drive assembly in the conductive slurry grinding device is shown.

[0036] Fig.12 for Figure 1 Schematic diagram of the structure of the feed assembly shown.

[0037] Fig.13 for Figure 4 Schematic diagram of the structure of the pre-mixing component shown.

[0038] Description of reference numerals: 1. grinding base assembly; 11. base; 12. motor compartment; 13. supporting arc plate; 2. grinding drive assembly; 21. grinding motor; 22. motor shaft; 23. connecting plate;

[0039] 3. Grinding assembly; 31. Grinding cylinder; 32. Grinding spindle; 321. Adjusting slide; 33. Grinding disc; 331. Material passing hole; 34. Discharging head; 341. Discharging trough;

[0040] 4. Spacing adjustment assembly; 41. Mounting plate; 42. Adjustment rail; 43. Adjustment assembly; 431. Adjustment block; 432. Limiting groove; 433. Matching scissor rod; 44. Adjustment drive; 441. Adjustment motor; 442. Adjustment pulley; 443. Connector;

[0041] 5. Inlet and outlet assembly; 51. Feed assembly; 511. Feed pipe; 512. Dispersion ring pipe; 513. Discharge nozzle; 52. Discharge sleeve; 53. Discharge pipe;

[0042] 6. Premixing assembly; 61. Stirring sleeve; 62. Stirring rod; 63. Stirring arc plate. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is now described in detail in conjunction with the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basics of the present invention in an illustrative manner, so it only shows the composition related to the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] Example 1, please refer to Figure 1-10 The conductive slurry grinding device includes a grinding base assembly 1, a driving assembly 2, a grinding assembly 3, a spacing adjustment assembly 4 and an inlet and outlet assembly 5. The grinding driving assembly 2 and the grinding assembly 3 are both installed on the grinding base assembly 1. The conductive slurry can enter the grinding assembly 3 through the inlet and outlet assembly 5 for grinding. The grinding driving assembly 2 drives the grinding assembly 3 to rotate to complete the grinding process. The spacing adjustment assembly 4 can adjust the grinding spacing.

[0045] Please refer to Figure 1-2 The grinding base assembly 1 includes a horizontally arranged base 11, a motor compartment 12 arranged at one end of the base 11, and a supporting arc plate 13 arranged at the other end of the base 11. The motor compartment 12 is arranged as a rectangular hollow structure, and the supporting arc plate 13 is arranged vertically to the base 11.

[0046] Please refer to Figure 2-3 The grinding drive assembly 2 is arranged inside the motor compartment 12. The grinding drive assembly 2 includes a horizontally arranged grinding motor 21. The grinding motor 21 is installed inside the motor compartment 12, and a motor shaft 22 is arranged at one end thereof close to the grinding assembly 3. A connecting disk 23 is sleeved on the end of the motor shaft 22 away from the grinding motor 21, and a grinding spindle 32 is inserted inside the connecting disk 23. The grinding motor 21 can drive the motor shaft 22 and the connecting disk 23 to rotate, thereby synchronously driving the grinding spindle 32 to rotate, and finally completing the grinding of the conductive slurry.

[0047] Please refer to Figure 2 and Figure 4-7The side wall of the motor bin 12 near the supporting arc plate 13 is connected with a grinding assembly 3, and the supporting arc plate 13 is located at the bottom of the grinding assembly 3 and can provide support for it. The grinding assembly 3 includes a grinding cylinder 31 connected to the side wall of the motor bin 12, and the grinding cylinder 31 is set as a hollow cylindrical structure, and a grinding spindle 32 is installed inside it. The grinding cylinder 31, the grinding spindle 32 and the motor shaft 22 are coaxially arranged. Grinding media (such as zirconium beads) can be placed inside the grinding cylinder 31, and a plurality of groups of grinding discs 33 are sleeved on the grinding spindle 32. The grinding disc 33 is set as a hollow ring structure, and a material passing through hole 331 is opened on it. The inner diameter of the grinding disc 33 is adapted to the outer diameter of the grinding spindle 32, and the grinding disc 33 can rotate synchronously with the grinding spindle 32. During the rotation of the grinding disc 33, the grinding media can be synchronously driven to rotate in the grinding cylinder 31. The conductive slurry inside the grinding cylinder 31 is ground by utilizing the collision force and shear force generated by the collision between the grinding medium, the grinding disc 33 and the conductive slurry. During the grinding process, the conductive slurry can pass through the material through-hole 331 on the grinding disc 33 and gradually complete the transportation inside the grinding cylinder 31. The end of the grinding spindle 32 away from the motor compartment 12 is connected to a discharge head 34, which is set as a cylindrical structure and has multiple groups of discharge grooves 341. After the conductive slurry is ground between the grinding discs 33, it can pass through the material through-hole 331 to enter the discharge head 34, and finally flow through the discharge groove 341 on the discharge head 34 for discharge.

[0048] Please refer to Figure 4-5 and Figure 8-10 An adjusting slot 321 is provided on the grinding spindle 32, and two sets of spacing adjustment components 4 are arranged inside the adjusting slot 321. Each set of spacing adjustment components 4 is connected to multiple sets of grinding discs 33. Through the adjustment of the two sets of spacing adjustment components 4, the grinding discs 33 on the grinding spindle 32 are divided into different areas according to different spacings, which is convenient for graded grinding of conductive slurries of different finenesses, thereby effectively reducing the cycle time required for the overall grinding of the conductive slurry and reducing its grinding cost.

[0049] Please refer to Figure 4-5 and Figure 8-10 Each set of spacing adjustment components 4 includes a mounting plate 41 disposed inside the grinding spindle 32, and a side wall of the mounting plate 41 is provided with an adjustment slide rail 42. The adjustment slide rail 42 is disposed along the length direction of the mounting plate 41, and a plurality of sets of adjustment components 43 are slidably mounted on the adjustment slide rail 42. By sliding the adjustment components 43 along the adjustment slide rail 42, the spacing between the grinding discs 33 can be adjusted.

[0050] Please refer to Figure 4-5 and Figure 8-10The adjustment assembly 43 includes an adjustment block 431 set in a rectangular structure, and each group of adjustment blocks 431 is slidably mounted on the adjustment rail 42. A limiting groove 432 is provided on the side of the adjustment block 431 close to the grinding disc 33, and the shape of the limiting groove 432 is adapted to the shape of the grinding disc 33. The grinding disc 33 is inserted into the limiting groove 432. When the adjustment block 431 slides along the adjustment rail 42, it can synchronously drive the grinding disc 33 connected thereto to move under the action of the limiting groove 432, so as to adjust the spacing between the grinding discs 33. Two groups of matching scissor rods 433 are rotatably connected to the middle part of the side wall of each group of adjustment blocks 431 away from the mounting plate 41, and the end of each group of matching scissor rods 433 is rotatably connected to the end of the other group of matching scissor rods 433. When the two groups of adjustment blocks 431 slide along the adjustment rail 42, the two groups of matching scissor rods 433 rotate synchronously, and the auxiliary adjustment blocks 431 complete the spacing adjustment.

[0051] Please refer to Figure 4-5 and Figure 8-10 The bottom of the adjustment component 43 is connected with an adjustment drive 44, which can drive the adjustment component 43 to slide along the adjustment rail 42. The adjustment drive 44 includes an adjustment motor 441 installed on the side wall of the mounting plate 41, and an adjustment pulley 442 is provided at the output end of the adjustment motor 441. A connecting member 443 is provided on the side wall of the adjustment pulley 442, and the side wall of the connecting member 443 is connected to the side wall of a group of adjustment blocks 431 arranged in the middle of the adjustment rail 42. The adjustment motor 441 can drive the adjustment pulley 442 to rotate. During the rotation of the adjustment pulley 442, under the action of the connecting member 443, a group of adjustment blocks 431 connected thereto can be driven to move synchronously. During the movement of this group of adjustment blocks 431, further with the assistance of the scissor rod 433, the remaining groups of adjustment blocks 431 are synchronously driven to slide along the adjustment rail 42, thereby realizing the adjustment of the spacing between the groups of adjustment blocks 431.

[0052] Please refer to Figure 1-2 The grinding assembly 3 is provided with a feed-in and feed-out assembly 5 at both ends, and the feed-in and feed-out assembly 5 includes a feed-in assembly 51 provided at one end of the grinding cylinder 31 close to the motor bin 12 and a feed-out sleeve 52 provided at one end of the grinding cylinder 31 away from the motor bin 12. The feed-in assembly 51 is provided through the grinding cylinder 31, and the conductive slurry to be ground can enter the inside of the grinding cylinder 31 through the feed-in assembly 51, and after the grinding is completed, it can enter the inside of the feed-out sleeve 52 from the grinding cylinder 31 for discharge.

[0053] Please refer to Figure 1-2The discharge sleeve 52 is configured as a hollow cylindrical structure, and the end portion is connected to the grinding cylinder 31. The discharge head 34 is disposed inside the discharge sleeve 52 and is coaxially disposed with the discharge sleeve 52. The conductive slurry can enter the discharge sleeve 52 from the discharge slot 341 on the discharge head 34. A discharge pipe 53 is disposed on the side wall of the discharge sleeve 52 away from the grinding spindle 32. The discharge pipe 53 penetrates the discharge sleeve 52 and is connected to the inside of the discharge sleeve 52. The conductive slurry inside the discharge sleeve 52 can be discharged through the discharge pipe 53.

[0054] Specifically, before grinding, the conductive slurry first passes through the feed assembly 51 and enters the grinding cylinder 31, and then the grinding motor 21 drives the grinding spindle 32 to rotate, and the grinding spindle 32 rotates synchronously to drive the multiple groups of grinding discs 33 thereon to rotate. In this process, the grinding media between the grinding discs 33 rotate synchronously, so that the conductive slurry inside the grinding cylinder 31 is ground by the collision force and shear force generated by the collision between the grinding media and the grinding discs 33 and the conductive slurry.

[0055] It should be noted that the grinding discs 33 on the grinding spindle 32 are connected to the two sets of spacing adjustment components 4 to form different partitions. The grinding discs 33 connected to the spacing adjustment components 4 close to the feeding component 51 form a rough grinding area, and the grinding discs 33 connected to the spacing adjustment components 4 far from the feeding component 51 form a fine grinding area. The spacing between the grinding discs 33 in the rough grinding area is greater than the spacing between the grinding discs 33 in the fine grinding area. Due to the difference in spacing, the rough grinding area and the fine grinding area can make the collision force and collision frequency of the grinding medium different when the grinding discs 33 maintain the same rotation speed, so as to perform graded and partitioned grinding for conductive slurries of different finenesses.

[0056] After the conductive slurry enters the grinding cylinder 31, it is first ground in the coarse grinding area. During the grinding process, it gradually passes through the material passing through hole 331 on the grinding disk 33 to enter the fine grinding area. After completing the grinding in the fine grinding area, it continues to pass through the discharge groove 341 on the discharge head 34 to enter the inside of the discharge sleeve 52, and finally completes the discharge through the discharge pipe 53.

[0057] After grinding, the conductive slurry is subjected to quality inspections in terms of solid content, fineness, viscosity, resistivity and dispersibility. If it does not meet the production standards, the conductive slurry is put back into the grinding cylinder 31 for cyclic grinding until the conductive slurry meets the production standards. In the subsequent cyclic grinding process, the spacing between the grinding discs 33 in the rough grinding area and the fine grinding area can be adjusted by using two sets of spacing adjustment components 4 according to the results of the quality inspection, thereby improving the grinding efficiency and reducing the grinding cost of the conductive slurry.

[0058] Two groups of spacing adjustment components 4 are connected to multiple groups of grinding discs 33 to divide the grinding discs 33 into zones, and then the spacing between the grinding discs 33 is adjusted by sliding the adjustment block 431 along the adjustment slide rail 42, so that when the grinding discs 33 maintain the same rotation speed, a coarse grinding zone and a fine grinding zone with different collision forces and collision frequencies of the grinding media are formed. The conductive slurry is ground into a conductive slurry with a smaller fineness in the coarse grinding zone and then enters the fine grinding zone for grinding. By performing graded grinding of conductive slurries of different finenesses, the time required for the overall grinding of the conductive slurry can be effectively reduced, thereby achieving the purpose of improving grinding efficiency and reducing production costs.

[0059] Example 2, please refer to Figure 1-2 , Figure 4 and Figure 11-12 , the second embodiment makes the following improvements on the basis of the first embodiment. Although the partitioning of the grinding disc 33 and the adjustment of the grinding spacing can be achieved through the spacing adjustment component 4, the conductive paste of different fineness can be graded and partitioned for grinding, effectively reducing the time required for the overall grinding of the conductive paste. However, due to the large specific surface area of ​​the particles of the carbon nanotube powder, it is easy to form agglomerates in the slurry after mixing with the solvent. Direct grinding will reduce the dispersibility of the conductive paste due to the presence of agglomerates, and will also cause the fineness after grinding to a certain extent. Therefore, it is necessary to set up a feeding component 51 and a pre-mixing component 6. Through the cooperation of the two, before the conductive paste is ground, it is fully stirred to remove the agglomerates formed, so as to avoid affecting the fineness and dispersibility of the conductive paste during the subsequent grinding process.

[0060] Please refer to Figure 1-2 and Fig.11 The feed assembly 51 includes a feed pipe 511 that penetrates the grinding cylinder 31, and the feed pipe 511 is vertically connected to a dispersion ring pipe 512 with a circular ring structure at the bottom. The dispersion ring pipe 512 is arranged around the premixing assembly 6, and a plurality of groups of discharge nozzles 513 are arranged equidistantly on the side wall close to the center. The discharge nozzles 513 are connected to the dispersion ring pipe 512 and the inside of the feed pipe 511. The conductive slurry to be ground can enter the inside of the dispersion ring pipe 512 through the feed pipe 511, and finally flow out from each group of discharge nozzles 513. The discharge nozzles 513 arranged around the dispersion ring pipe 512 can make the conductive slurry evenly contact the premixing assembly 6.

[0061] Please refer to Figure 2 , Figure 4 and Fig.12A premixing assembly 6 is sleeved on one end of the grinding main shaft 32 near the grinding motor 21. The premixing assembly 6 includes a stirring sleeve 61 sleeved on the outer wall of the grinding main shaft 32. The stirring sleeve 61 can rotate synchronously with the grinding main shaft 32. A plurality of stirring rods 62 are arranged around the stirring sleeve 61. A group of stirring arc plates 63 are connected to the end of each stirring rod 62 away from the stirring sleeve 61. The stirring arc plates 63 are arranged in a circular arc structure and are arranged around the stirring sleeve 61. When the stirring sleeve 61 rotates with the grinding main shaft 32, the stirring arc plates 63 can rotate synchronously.

[0062] Specifically, before grinding, the conductive slurry first passes through the feed pipe 511 into the dispersion ring tube 512, and then flows out from the multiple groups of discharge nozzles 513 arranged around the dispersion ring tube 512. The discharge nozzles 513 arranged around the premixing assembly 6 ensure that the conductive slurry can fully and evenly contact the stirring arc plate 63. During the rotation of the stirring sleeve 61 following the grinding spindle 32, the stirring arc plate 63 is synchronously driven to stir the conductive slurry. Finally, through the cooperation of the stirring arc plate 63 and the discharge nozzle 513, the stirring arc plate 63 can fully and evenly stir the conductive slurry before grinding, thereby eliminating the agglomeration of the conductive slurry due to the excessive specific surface area of ​​the particles, ensuring that the dispersion and fineness of the conductive slurry in the subsequent grinding process are not disturbed by agglomeration, thereby improving the quality and efficiency of the conductive slurry grinding.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front and back", "left and right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0065] The above is based on the ideal embodiment of the present invention. Through the above description, relevant personnel can make various changes and modifications without departing from the scope of the present invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. Conductive slurry polishing device, characterized in that: The grinding base assembly (1) comprises a horizontally arranged base (11), and a grinding assembly (3) is arranged on the top of the base (11); The grinding assembly (3) comprises a grinding cylinder (31) connected to the side wall of the motor compartment (12), a grinding spindle (32) coaxially arranged with the grinding motor (21), and a plurality of grinding discs (33) sleeved on the grinding spindle (32); an adjustment slide groove (321) is provided on the grinding spindle (32); two groups of spacing adjustment assemblies (4) are arranged inside the adjustment slide groove (321); each group of the spacing adjustment assemblies (4) comprises a mounting plate (41) arranged inside the grinding spindle (32), an adjustment slide rail (42) arranged on the side wall of the mounting plate (41), a plurality of adjustment assemblies (43) slidably connected to the adjustment slide rail (42), and an adjustment drive (44) arranged at the bottom of the adjustment assembly (43).

2. The conductive paste polishing device according to claim 1, characterized in that: A motor bin (12) and a supporting arc plate (13) are installed on the top of the base (11); a grinding drive assembly (2) is arranged inside the motor bin (12), and a side wall thereof close to the supporting arc plate (13) is connected to a grinding assembly (3); the grinding drive assembly (2) comprises a horizontally arranged grinding motor (21); the grinding motor (21) is installed inside the motor bin (12), and a motor shaft (22) is arranged at one end close to the grinding assembly (3); a connecting plate (23) is connected at the end of the motor shaft (22), and a grinding spindle (32) is inserted inside the connecting plate (23).

3. The conductive paste polishing device according to claim 1, characterized in that: The grinding cylinder (31) is configured as a hollow cylindrical structure and is coaxially arranged with the grinding main shaft (32); the end of the grinding main shaft (32) away from the motor compartment (12) is connected to a discharge head (34); the grinding disc (33) is configured as a hollow annular structure and is provided with a material passing through hole (331); the discharge head (34) is configured as a cylindrical structure and is provided with a plurality of groups of discharge slots (341).

4. The conductive paste polishing device according to claim 1, characterized in that: The adjustment component (43) comprises an adjustment block (431) arranged in a rectangular structure, a limiting groove (432) is provided on a side of the adjustment block (431) close to the grinding disc (33), and the grinding disc (33) is inserted into the limiting groove (432).

5. The conductive paste polishing device according to claim 4, characterized in that: The middle part of each group of the adjustment blocks (431) is rotatably connected to two groups of matching scissor rods (433), and the ends of each group of the matching scissor rods (433) are rotatably connected to the ends of another group of matching scissor rods (433).

6. The conductive paste polishing device according to claim 5, characterized in that: The adjustment drive (44) comprises an adjustment motor (441) mounted on a side wall of the mounting plate (41); an adjustment pulley (442) is provided at an output end of the adjustment motor (441); a connecting member (443) is provided on the adjustment pulley (442); and a side wall of the connecting member (443) is connected to a side wall of the adjustment block (431).

7. The conductive paste polishing device according to claim 1, characterized in that: Feeding and discharging assemblies (5) are provided at both ends of the grinding assembly (3), and the feeding and discharging assemblies (5) include a feeding assembly (51) arranged at one end of the grinding cylinder (31) close to the motor bin (12) and a discharging sleeve (52) arranged at one end of the grinding cylinder (31) away from the motor bin (12), and the discharging head (34) is arranged inside the discharging sleeve (52) and is coaxially arranged with the discharging sleeve (52).

8. The conductive paste polishing device according to claim 7, characterized in that: The feed assembly (51) comprises a feed pipe (511) which passes through the grinding cylinder (31); the bottom of the feed pipe (511) is connected to a dispersion ring pipe (512) with a circular ring structure; the dispersion ring pipe (512) is arranged around the grinding main shaft (32), and a plurality of groups of discharge nozzles (513) are equidistantly arranged on the side wall close to the center.

9. The conductive paste polishing device according to claim 8, characterized in that: The discharge sleeve (52) is configured as a hollow cylindrical structure, and a discharge pipe (53) is provided on the side wall thereof away from the grinding spindle (32). The discharge pipe (53) penetrates the discharge sleeve (52) and is in communication with the interior of the discharge sleeve (52).

10. The conductive paste polishing device according to claim 1, characterized in that: A premixing assembly (6) is sleeved on one end of the regulating chute (321) close to the grinding motor (21), and the premixing assembly (6) comprises a stirring sleeve (61) sleeved on the outer wall of the grinding spindle (32), and a plurality of groups of stirring rods (62) are arranged around the stirring sleeve (61), and the end of each group of stirring rods (62) is connected to a group of stirring arc plates (63) with a circular arc structure.

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