Pole piece grinding machine

Abstract

The utility model provides a pole piece grinder which comprises a support, a grinding disc assembly and a grading assembly, the grinding disc assembly is arranged on the support, a feeding port and a first discharging port are formed in the grinding disc assembly, the feeding port is used for being communicated with external feeding equipment, and the grading assembly is used for being communicated with the grading assembly. The grinding disc assembly is used for grinding a pole piece so as to separate black powder from the pole piece; and the grading assembly is arranged on the grinding disc assembly, a second discharging opening is formed in the grading assembly, and the grading assembly is used for collecting the separated black powder and discharging the black powder from the second discharging opening. According to the technical scheme, the decomposition assembly is additionally arranged on the grinding disc assembly, after the grinding disc assembly grinds a pole piece, black powder floats in the grinding disc assembly through the grading assembly, and then the floating black powder is recycled, so that the purity of the black powder is improved, and the recycling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a pole piece grinding machine. Background Art

[0002] In the battery pole piece recycling system, the pole piece powder removal device plays a key role. It is mainly used to separate the pole powder adhered to the pole piece. Usually, the pole piece powder removal device uses a knife roller assembly to grind the pole piece. The rotation of the knife roller assembly drives the material to do centrifugal motion in the shell. In this process, dust falls due to collision, shearing, etc.

[0003] However, in the prior art, debris and the like are also generated during the de-powdering process of the electrode sheet, and the dust and debris are not separated during recycling, resulting in low purity of black powder, incomplete recycling, and low recycling efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a pole piece grinding machine, aiming to solve the technical problem in the prior art that the purity of black powder after grinding the pole piece is low, resulting in incomplete recovery and low recovery efficiency.

[0005] In order to achieve the above object, the utility model provides a pole piece grinding machine, the pole piece grinding machine comprising:

[0006] Bracket;

[0007] A grinding disc assembly, the grinding disc assembly is arranged on the bracket, the grinding disc assembly has a feed port and a first discharge port, the feed port is used to communicate with an external feeding device, and the grinding disc assembly is used to grind the pole piece to separate the black powder from the pole piece;

[0008] A grading component is arranged on the grinding disc component, and has a second discharge port. The grading component is used to collect the separated black powder and discharge the black powder from the second discharge port.

[0009] Optionally, the grading assembly is arranged on the top of the grinding disc assembly, and the first discharge port is located at the bottom of the grinding disc assembly.

[0010] Optionally, the grinding disc assembly comprises:

[0011] A grinding disc bin, wherein the grinding disc bin is arranged on the bracket;

[0012] A grinding disc, wherein the grinding disc is arranged in the grinding disc bin;

[0013] A bearing box, one end of which extends into the grinding disc bin and is connected to the grinding disc, and the other end of which is used to be connected to the first driving assembly;

[0014] When the first driving assembly drives the bearing box to rotate, the grinding disc is driven to rotate.

[0015] Optionally, the grinding disc is circular, and a plurality of tooth blocks are provided along the circumferential direction on the edge of the grinding disc; a plurality of hammer heads are also provided on the edge of the grinding disc, one end of the hammer head is connected to the edge of the grinding disc, and the other end extends radially along the grinding disc, and the plurality of hammer heads are arranged at intervals along the circumference of the grinding disc.

[0016] Optionally, the first driving assembly includes:

[0017] A grinding disc motor, wherein the grinding disc motor is arranged on the bracket;

[0018] A transmission belt, one end of which is sleeved on the output shaft of the grinding disc motor, and the other end of which is sleeved on the rotating end of the bearing box.

[0019] Optionally, the grading component includes:

[0020] A grading bin, the grading bin is in communication with the grinding disc bin;

[0021] A grading wheel, the grading wheel is arranged in the grinding disc bin;

[0022] A rotating shaft, one end of which passes through the grading bin and is connected to the grading wheel, and the other end of which is connected to a second driving assembly, and the second driving assembly drives the grading wheel to rotate so that the black powder floats in the grinding disc bin;

[0023] A fan is connected to the second discharge port, and the fan is used to suck the black powder out from the second discharge port.

[0024] Optionally, the grading bin comprises:

[0025] A bin body, one side of which is open, the grinding disc bin is provided with a mounting hole, the opening covers the mounting hole, and the second discharge port is connected to the bin body;

[0026] A flange plate, the flange plate is arranged on the open port, the flange plate has a plurality of through holes, and the second discharge port is connected to the plurality of through holes;

[0027] The classifying wheel is rotatably arranged on the flange plate.

[0028] Optionally, the bin body and the grinding disc bin are integrally formed.

[0029] Optionally, the pole piece grinding machine further includes a discharge assembly, wherein the discharge assembly is disposed on the first discharge port, and the discharge assembly is used to control the opening or closing of the first discharge port.

[0030] Optionally, the discharging assembly comprises:

[0031] a discharge pipe, the discharge pipe being in communication with the first discharge port;

[0032] A door panel, wherein the door panel is arranged in the discharge pipe;

[0033] A rotating member, wherein the rotating member is arranged outside the discharge pipe and connected to the door panel, and the rotating member is used to drive the door panel to rotate to cover the first discharge port or expose the first discharge port.

[0034] The technical solution of the utility model is to additionally arrange the decomposition component on the grinding disc component. After the grinding disc component grinds the electrode piece, the grading component allows the black powder to float in the grinding disc component, and then the floating black powder is recovered, thereby improving the purity of the black powder and improving the recovery efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0036] Figure 1 It is a structural schematic diagram of an embodiment of a pole piece grinding machine of the utility model;

[0037] Figure 2 This is a schematic diagram of the structure of the grinding disc assembly in the pole piece grinding machine of the utility model;

[0038] Figure 3 It is a structural schematic diagram of the grading components in the pole piece grinding machine of the utility model;

[0039] Figure 4 It is a structural schematic diagram of another embodiment of the pole piece grinding machine of the utility model.

[0040] Description of Figure Numbers:

[0041]

[0042]

[0043] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] 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 of 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.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] The utility model provides a pole piece grinder, which includes a bracket 50, a grinding disc assembly 10 and a grading assembly 20, wherein the grinding disc assembly 10 is arranged on the bracket 50, and has a feed port and a first discharge port 14, wherein the feed port is used to communicate with an external feeding device, and the grinding disc assembly 10 is used to grind the pole piece so that black powder is separated from the pole piece; the grading assembly 20 is arranged on the grinding disc assembly 10, and has a second discharge port 23, wherein the grading assembly 20 is used to collect the separated black powder and discharge the black powder from the second discharge port 23.

[0050] Please refer to Figure 1 The external feeding equipment is connected to the feed port through a hose 51, and the pole pieces are sent into the grinding disc assembly 10 by a blower.

[0051] The grinding disc assembly 10 is used to grind the pole piece, and during the grinding process, black powder on the pole piece will fall off the pole piece. The black powder is mainly made of materials such as graphite.

[0052] In one embodiment, during the grinding process, the pole piece has a certain weight. After the grinding is completed, the pole piece will fall to the bottom of the grinding disc assembly 10 under the action of gravity. Similarly, even the debris generated during the grinding process will fall to the bottom due to its heavy weight. Therefore, the first discharge port 14 is set at the bottom of the grinding disc assembly 10 to facilitate the recovery of the polished pole piece.

[0053] Since the black powder is light in weight, the grading assembly 20 can make the air in the grinding disc assembly 10 flow continuously, so that the black powder continues to float in the air and does not fall to the bottom of the grinding disc assembly 10. Therefore, in this embodiment, the grading assembly 20 is set at the top of the grinding disc assembly 10, or a position relatively close to the top, and the black powder is recovered from the top. In this way, the black powder is separated from the pole pieces, and the pole pieces that fall to the bottom and the black powder floating in the air do not affect each other. Recovery from the top can also avoid the influence of other debris, thereby improving the purity of the recovered black powder.

[0054] The second discharge port 23 may also be disposed at the top of the grading assembly 20 . The second discharge port 23 may be connected to an external recycling device, so that the black powder is directly transported to the external recycling device after being discharged through the second discharge port 23 .

[0055] The technical solution of the utility model is to additionally arrange the decomposition component on the grinding disc component 10. After the grinding disc component 10 grinds the electrode piece, the grading component 20 allows the black powder to float in the grinding disc component 10, and then the floating black powder is recovered, thereby improving the purity of the black powder and improving the recovery efficiency.

[0056] Please refer to Figure 2 The grinding disc assembly 10 includes a grinding disc bin 11, a grinding disc 12 and a bearing box 13, wherein the grinding disc bin 11 is arranged on the bracket 50; the grinding disc 12 is arranged in the grinding disc bin 11; one end of the bearing box 13 extends into the grinding disc bin 11 and is connected to the grinding disc 12, and the other end of the bearing box 13 is used to be connected to the first driving assembly 30; when the first driving assembly 30 drives the bearing box 13 to rotate, it drives the grinding disc 12 to rotate.

[0057] In one embodiment, the bearing box 13 serves as a connecting structure to connect the first driving assembly 30 with the grinding disc 12 .

[0058] The grinding disc bin 11 has a certain accommodation space for accommodating the pole piece and the grinding disc 12, and the side wall of the grinding disc bin 11 has an opening for the bearing box 13 to extend into the grinding disc bin 11. After the bearing box 13 extends into the grinding disc bin 11, it is connected to the grinding disc 12 through a connecting piece such as a screw.

[0059] Please refer to Figure 2 The bearing box 13 may specifically include an outer shell, which is cylindrical and may be provided with a shaft, a bearing, etc., the shaft is inserted into the inner ring of the bearing, and the outer ring is connected to the inner wall of the outer shell. One end of the shaft is connected to the grinding disc 12, and the other end is connected to the first driving assembly 30. When the first driving assembly 30 drives the shaft to rotate, the grinding disc 12 is synchronously driven to rotate.

[0060] The first driving component 30 can use a grinding disc motor 31, and directly connect the output end to the shaft rod to achieve driving. Alternatively, it can also be matched with a transmission belt 32, which is annular. When the installation space is limited, the grinding disc motor 31 can be installed on the top or bottom of the bearing box 13, and the two ends of the transmission belt 32 are sleeved on the two, and the transmission belt 32 is kept in a tight state, thereby improving space utilization.

[0061] In addition, the bearing box 13 may also adopt other linkage structures to ensure the synchronous rotation of the first driving assembly 30 and the grinding disc 12, which is not limited in this embodiment.

[0062] In one embodiment, the grinding disc 12 is circular, and a plurality of tooth blocks 15 are circumferentially provided at the edge of the grinding disc 12; a plurality of hammer heads 16 are also provided at the edge of the grinding disc 12, one end of the hammer head 16 is connected to the edge of the grinding disc 12, and the other end extends radially along the grinding disc 12, and the plurality of hammer heads 16 are circumferentially spaced apart from each other.

[0063] A plurality of tooth blocks 15 are continuously arranged on the edge of the grinding disc 12. The tooth blocks 15 have a certain thickness and protrude along the axial direction of the grinding disc 12. The tooth blocks 15 have an uneven tooth structure along the side facing the center of the grinding disc 12.

[0064] In addition, the hammer 16 is provided at the edge of the tooth block 15, and the hammer 16 is arranged close to the tooth block 15. The hammer 16 is a protruding structure and is evenly spaced along the circumference of the grinding disc 12. During the rotation of the grinding disc 12, the tooth block 15 and the hammer 16 increase the number of collisions with the pole piece, so that the black powder can fall off the pole piece faster, thereby improving the powder removal efficiency.

[0065] Please refer to Figure 3 The grading component 20 includes a grading bin 21, a grading wheel 22, a rotating shaft and a fan. The grading bin 21 is connected to the grinding disc bin 11; the grading wheel 22 is arranged in the grinding disc bin 11; one end of the rotating shaft passes through the grading bin 21 and is connected to the grading wheel 22, and the other end is connected to the second driving component 40. When the second driving component 40 drives the grading wheel 22 to rotate, the black powder floats in the grinding disc bin 11; the fan is connected to the second discharge port 23, and the fan is used to suck the black powder out from the second discharge port 23.

[0066] The second driving assembly 40 can adopt a structure similar to that of the first driving assembly 30 to drive the classifying wheel 22 to rotate.

[0067] The classifying wheel 22 is located inside the grinding disc bin 11. The classifying wheel 22 may be a wind wheel structure with a plurality of air holes on its side, so that the air flow in the grinding disc bin 11 can be driven during the rotation process. The air flow can keep the black powder floating in the air.

[0068] Furthermore, the fan is installed on the second discharge port 23 , and the fan generates negative pressure on the second discharge port 23 to suck the black powder into the grading bin 21 , and finally discharge it through the second discharge port 23 .

[0069] In one embodiment, the grading bin 21 includes a bin body 211 and a flange plate 212, one side of the bin body 211 is open, the grinding disc bin 11 has a mounting hole, the opening covers the mounting hole, and the second discharge port 23 is connected to the bin body 211; the flange plate 212 is arranged on the opening, the flange plate 212 has a plurality of through holes 213, and the second discharge port 23 is connected to the plurality of through holes 213; the grading wheel 22 is rotatably arranged on the flange plate 212.

[0070] The chamber body 211 and the grinding disc chamber 11 can be integrally formed. Figure 1 The bin body 211 can be installed on the side wall of the grinding disc bin 11 near the top, please refer to Figure 4 , or it can be directly installed on the top of the grinding disc bin 11.

[0071] The size of the mounting hole matches the size of the opening, and the bin body 211 can completely cover the entire mounting hole. The flange plate 212 is installed at the connection position between the opening and the mounting hole, and the flange plate 212 is used to provide support for the classifying wheel 22. The classifying wheel 22 is installed on the side of the flange plate 212 facing the grinding disc bin 11, and the rotating shaft runs through the entire bin body 211 and the flange plate 212 is connected to the classifying wheel 22.

[0072] When the fan is running, the black wind in the grinding disc bin 11 will be sucked into the bin body 211 through the through hole 213 on the flange plate 212, and finally sucked out from the second discharge port 23 at the top.

[0073] Furthermore, the pole piece grinding machine further includes a discharge assembly 60 , which is disposed on the first discharge port 14 , and is used to control the opening or closing of the first discharge port 14 .

[0074] In order to prevent the pole pieces from falling from the grinding disc bin 11 during the powder removal process, the discharge assembly 60 is installed on the first discharge port 14 to control its opening and closing.

[0075] Specifically, the discharge assembly 60 includes a discharge pipe 61, a rotating member 62 and a door panel, the discharge pipe 61 is connected to the first discharge port 14; the door panel is arranged in the discharge pipe 61; the rotating member 62 is arranged on the outside of the discharge pipe 61, and the rotating member 62 is connected to the door panel, and the rotating member 62 is used to drive the door panel to rotate to cover the first discharge port 14 or expose the first discharge port 14.

[0076] The discharge pipe 61 is a cylinder, the top and bottom surfaces of which are both open, and the side wall is connected to the first discharge port 14 .

[0077] When the door panel is rotated to the first discharge port 14 through the rotating member 62, the first discharge port 14 is blocked, that is, the first discharge port 14 is closed. When the door panel is moved away from the first discharge port 14 through the rotating member 62, the first discharge port 14 is connected to the discharge pipe 61, and the pole piece can enter the discharge pipe 61 and fall from the opening at the bottom of the discharge pipe 61 under the action of gravity.

[0078] The opening at the top of the discharge pipe 61 is used to communicate with the atmosphere to prevent the fan from generating negative pressure in the grinding disc bin 11 and preventing the pole piece from being discharged from the first discharge port 14 .

[0079] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pole piece grinding machine, characterized in that: The pole piece grinding machine comprises: Bracket; A grinding disc assembly, the grinding disc assembly is arranged on the bracket, the grinding disc assembly has a feed port and a first discharge port, the feed port is used to communicate with an external feeding device, and the grinding disc assembly is used to grind the pole piece to separate the black powder from the pole piece; A grading component is arranged on the grinding disc component, and has a second discharge port. The grading component is used to collect the separated black powder and discharge the black powder from the second discharge port.

2. The pole piece grinding machine according to claim 1, characterized in that: The grading assembly is arranged on the top of the grinding disc assembly, and the first discharge port is located at the bottom of the grinding disc assembly.

3. The pole piece grinding machine according to claim 1, characterized in that: The grinding disc assembly comprises: A grinding disc bin, wherein the grinding disc bin is arranged on the bracket; A grinding disc, wherein the grinding disc is arranged in the grinding disc bin; A bearing box, one end of which extends into the grinding disc bin and is connected to the grinding disc, and the other end of which is used to be connected to the first driving assembly; When the first driving assembly drives the bearing box to rotate, the grinding disc is driven to rotate.

4. The pole piece grinding machine according to claim 3, characterized in that: The grinding disc is circular, and a plurality of tooth blocks are arranged along the circumferential direction on the edge of the grinding disc; a plurality of hammer heads are also arranged on the edge of the grinding disc, one end of the hammer head is connected to the edge of the grinding disc, and the other end extends along the radial direction of the grinding disc, and the plurality of hammer heads are arranged at intervals along the circumference of the grinding disc.

5. The pole piece grinding machine according to claim 3, characterized in that: The first drive assembly comprises: A grinding disc motor, wherein the grinding disc motor is arranged on the bracket; A transmission belt, one end of which is sleeved on the output shaft of the grinding disc motor, and the other end of which is sleeved on the rotating end of the bearing box.

6. The pole piece grinding machine according to claim 3, characterized in that: The hierarchical components include: A grading bin, the grading bin is in communication with the grinding disc bin; A grading wheel, the grading wheel is arranged in the grinding disc bin; A rotating shaft, one end of which passes through the grading bin and is connected to the grading wheel, and the other end of which is connected to a second driving assembly, and the second driving assembly drives the grading wheel to rotate so that the black powder floats in the grinding disc bin; A fan is connected to the second discharge port, and the fan is used to suck the black powder out from the second discharge port.

7. The pole piece grinding machine according to claim 6, characterized in that: The grading bin comprises: A bin body, one side of which is open, the grinding disc bin is provided with a mounting hole, the opening covers the mounting hole, and the second discharge port is connected to the bin body; A flange plate, the flange plate is arranged on the open port, the flange plate has a plurality of through holes, and the second discharge port is connected to the plurality of through holes; The classifying wheel is rotatably arranged on the flange plate.

8. The pole piece grinding machine according to claim 7, characterized in that: The bin body and the grinding disc bin are integrally formed.

9. The pole piece grinding machine according to claim 1, characterized in that: The pole piece grinding machine also includes a discharge assembly, which is disposed on the first discharge port and is used to control the opening or closing of the first discharge port.

10. The pole piece grinding machine according to claim 9, characterized in that: The discharging assembly comprises: a discharge pipe, the discharge pipe being in communication with the first discharge port; A door panel, wherein the door panel is arranged in the discharge pipe; A rotating member, wherein the rotating member is arranged outside the discharge pipe and connected to the door panel, and the rotating member is used to drive the door panel to rotate to cover the first discharge port or expose the first discharge port.

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