Crushing device

Abstract

The utility model relates to the technical field of lithium battery positive electrode materials, and discloses a crushing device, which comprises a crushing assembly, a crushing assembly, a crushing assembly and a crushing assembly, and the crushing assembly is provided with a channel for materials to pass through; the discharging assembly is arranged above the crushing assembly, and the discharging assembly is suitable for storing materials and allowing the materials to pass through; and the at least two extrusion assemblies are movably arranged above the discharging assembly, and the at least two extrusion assemblies are suitable for moving in opposite directions so as to extrude materials stored on the discharging assembly. The at least two extrusion assemblies are arranged above the discharging assembly and move oppositely at the same time to extrude materials, so that the moving distance of each extrusion assembly is shortened, the extrusion speed is increased within the same time, and the production efficiency is improved; and secondly, the materials are extruded before being crushed, so that the size of the materials can be reduced, material blockage caused by overlarge size of the materials during crushing is avoided, and the service life of the crushing device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery positive electrode materials, in particular to a pulverizing device. Background Art

[0002] At present, the production process of lithium battery positive electrode materials is divided into the following links: feeding-blending-filling-sintering-crushing-packaging. In the production process, a roller mill is used to crush the materials, which can crush large pieces of materials into small pieces through roller rolling and enter the next link. However, when the material is too hard or the particles are too large, it cannot pass through the rollers all at once. The materials that have not passed through accumulate on the top of the rollers to form a blockage. At this time, manual intervention is required for inspection and adjustment. This process is not only time-consuming and labor-intensive, but also reduces production efficiency and poses safety hazards. The load on the roller motor is too large due to material blockage, which can cause damage to the equipment.

[0003] The prior art discloses a single-side crushing pre-crushing double-roller sand making machine, such as Figure 1 As shown, a sieve 02 is provided above the two crushing cylinders 01, and an extrusion crushing head 03 and an anvil 04 are provided on the left and right sides above the sieve 02 respectively. When the extrusion crushing head 03 is closed to the extreme position toward the anvil 04, the stones can be crushed into particles of a size that can fall from the sieve holes 05 on the sieve 02 and then fall into the channel between the two crushing cylinders 01.

[0004] In the above scheme, by providing the screen 02, the extrusion crushing head 03 and the chopping board 04, the material can be squeezed into small-size stones and then rolled by the rolling cylinder 01, which can effectively prevent material blockage and improve the one-time pass rate of the material. However, the extrusion structure squeezes the material in one direction, the extrusion speed is slow, and the production efficiency is low. Utility Model Content

[0005] In view of this, the utility model provides a crushing device to solve the problem that the extrusion structure extrude the material in one direction, the extrusion speed is slow and the production efficiency is low.

[0006] The utility model provides a crushing device, comprising:

[0007] A pulverizing assembly, wherein the pulverizing assembly is provided with a passage for materials to pass through;

[0008] A material discharge assembly is disposed above the pulverizing assembly, and the material discharge assembly is suitable for storing materials and allowing the materials to pass through;

[0009] At least two extrusion assemblies are movably arranged above the material lowering assembly, and at least two of the extrusion assemblies are suitable for moving toward each other to extrude the materials stored on the material lowering assembly.

[0010] Beneficial effects: by arranging at least two extrusion assemblies above the feeding assembly, at least two extrusion assemblies move toward each other at the same time to extrude the material, so that the moving distance of each extrusion assembly is shortened, the extrusion speed is increased in the same time, and the production efficiency is improved; secondly, the material is extruded before being crushed, which can reduce the size of the material, avoid blockage caused by excessive material size during crushing, and increase the service life of the crushing device.

[0011] In an optional embodiment, the extrusion assembly includes:

[0012] The extrusion parts, at least two of the extrusion parts on the extrusion assemblies, move toward each other and are suitable for extruding the material.

[0013] In an optional embodiment, a plurality of protrusions are provided on a side of the extrusion portion close to the material.

[0014] Beneficial effect: By arranging the protrusion on the extrusion part, the contact area between the extrusion part and the material can be reduced, making it easier to crush the material.

[0015] In an optional embodiment, the protrusions between at least two of the extrusion portions disposed opposite to each other are symmetrically arranged.

[0016] Beneficial effect: By symmetrically arranging the protrusions between at least two extrusion parts, the contact area between the extrusion parts and the individual material particles is smaller, making it easier to crush the material.

[0017] In an optional embodiment, the protrusions between at least two of the extrusion portions disposed opposite to each other are cross-arranged.

[0018] Beneficial effect: By cross-arranging the protrusions between at least two extrusion parts, the contact area between the material and the extrusion part becomes larger, more materials can be crushed at the same time, and the work efficiency is improved.

[0019] In an optional embodiment, the extrusion assembly includes:

[0020] The first driving mechanism is connected to the extrusion part, and the first driving mechanism is suitable for driving the extrusion part to move.

[0021] Beneficial effect: The first driving mechanism can provide driving force for the extrusion part.

[0022] In an optional embodiment, the material discharge assembly is provided with an opening, and the opening is suitable for allowing the material to pass through.

[0023] Beneficial effect: by setting an opening on the feeding assembly, when the material falls onto the feeding assembly, the material with small particle size falls directly through the opening, and the material with large particle size is squeezed into small particle size by the extrusion assembly and then falls through the opening. Since only the material with large particle size needs to be extruded by the extrusion assembly, the speed of the material passing through the feeding assembly can be increased.

[0024] In an optional embodiment, the maximum diameter of the opening is no greater than 4 cm;

[0025] And / or, the opening is a circular through hole;

[0026] And / or, the opening is provided in plurality.

[0027] Beneficial effects: By setting the maximum opening diameter to no more than 4 cm, it is convenient to squeeze the material into small particles before crushing, reducing the risk of clogging the crushing component; the opening is set to be circular for easy processing; by setting multiple openings, it is convenient to speed up the material falling speed.

[0028] In an optional embodiment, a weight sensor is provided on the unloading assembly.

[0029] Beneficial effect: By setting a weight sensor on the unloading component, when the weight sensor senses that material has fallen, or the weight of the fallen material exceeds the preset value, it means that there is material with a larger particle size stored on the unloading component, and the extrusion component starts working. It has a high degree of automation and can effectively save costs.

[0030] In an optional embodiment, the weight sensors are provided with at least two;

[0031] And / or, the weight sensor is arranged on the lower side of the blanking component.

[0032] Beneficial effect: By setting at least two weight sensors, signal detection is more accurate, which can prevent the operation of the device from being affected when other sensors fail at the same time; by setting the weight sensor on the lower side of the unloading component, it can accurately detect whether there is material falling on the unloading component.

[0033] In an optional embodiment, the material is a positive electrode material for a lithium battery.

[0034] In an optional embodiment, the power of the crushing assembly is adjustable and suitable for crushing materials of different hardness. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0036] Figure 1 It is a front view of a single-side crushing pre-crushing double-roller sand making machine in the prior art;

[0037] Figure 2 A front view of a pulverizing device according to an embodiment of the utility model;

[0038] Figure 3 A top view of a blanking assembly according to an embodiment of the utility model;

[0039] Figure 4 It is a front view of a crushing assembly according to an embodiment of the utility model.

[0040] Description of reference numerals:

[0041] 01. Rolling cylinder; 02. Screen; 03. Extrusion crushing head; 04. Chopping board; 05. Screen hole;

[0042] 1. Crushing assembly; 11. Crushing roller; 12. Rotating shaft; 13. Conveyor belt; 14. Second motor; 2. Unloading assembly; 21. Opening; 31. Extrusion part; 32. Telescopic rod; 33. First motor; 4. Weight sensor; 5. Fixed plate. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0044] Combine the following Figures 2 to 4 , describing an embodiment of the utility model.

[0045] According to an embodiment of the utility model, a pulverizing device is provided, comprising: a pulverizing component 1, the pulverizing component 1 being provided with a channel for materials to pass through; a material discharge component 2, arranged above the pulverizing component 1, the material discharge component 2 being suitable for storing materials and allowing materials to pass through; at least two extrusion components, movably arranged above the material discharge component 2, the at least two extrusion components being suitable for moving toward each other to extrude materials stored on the material discharge component 2.

[0046] By arranging at least two extrusion assemblies above the unloading assembly 2, at least two extrusion assemblies move toward each other at the same time to extrude the material, so that the moving distance of each extrusion assembly is shortened, the extrusion speed is increased in the same time, and the production efficiency is improved; secondly, the material is extruded before being crushed, which can reduce the size of the material, avoid blockage caused by excessive material size during crushing, and increase the service life of the crushing device.

[0047] The material is a positive electrode material for a lithium battery. As a convertible implementation, the crushing device can also be used to crush other granular materials, and there is no excessive restriction here.

[0048] like Figure 2 As shown, the crushing device in this embodiment includes: a shell, a crushing component 1 is arranged at the bottom of the shell, two fixed plates 5 extend horizontally from both sides of the shell and above the crushing component 1, a gap is left between the two fixed plates 5 for placing the blanking component 2, and the extrusion component is fixed on the fixed plates 5.

[0049] like Figure 2 As shown, the extrusion assembly in this embodiment includes: an extrusion part 31, and the extrusion parts 31 on the two extrusion assemblies move toward each other and are suitable for extruding materials. A plurality of protrusions are provided on the side of the extrusion part 31 close to the material. Among them, the extrusion part 31 is a flat plate structure. By providing the protrusions on the extrusion part 31, the contact area between the extrusion part 31 and the material can be reduced, making it easier to crush the material. As a convertible embodiment, it is also possible that no protrusions are provided on the extrusion part 31, and the material is crushed by increasing the driving force of the extrusion assembly, or that a rough material is selected on the side of the extrusion part 31 close to the material.

[0050] In this embodiment, two extrusion assemblies are provided, and the two extrusion assemblies are arranged opposite to each other. As a convertible implementation, it is also possible that 4 or 6 extrusion assemblies are provided, or even more extrusion assemblies are provided, and the multiple extrusion assemblies can be symmetrically arranged in multiple directions, and the multiple extrusion assemblies move towards each other at the same time to extrude the material.

[0051] Furthermore, the protrusions between the two extrusion parts 31 disposed opposite to each other are symmetrically arranged. By symmetrically arranging the protrusions between the two extrusion parts 31, the contact area between the extrusion parts 31 and a single material particle is smaller, and the material is easier to crush. As a convertible embodiment, the protrusions between the two extrusion parts 31 disposed opposite to each other may also be cross-arranged. By cross-arranging the protrusions between the two extrusion parts 31, the contact area between the material and the extrusion parts 31 becomes larger, more materials can be crushed at the same time, and work efficiency is improved. As a convertible embodiment, the protrusions on the extrusion parts 31 may also be arranged irregularly, and there are no excessive restrictions here.

[0052] The extrusion assembly in this embodiment includes: a first driving mechanism connected to the extrusion part 31, and the first driving mechanism is suitable for driving the extrusion part 31 to move. Figure 2 As shown, the first driving mechanism includes: a telescopic rod 32, one end of which is connected to the extrusion part 31; a first motor 33, which is connected to the other end of the telescopic rod 32; the first motor 33 is suitable for driving the telescopic rod 32 to extend or retract, thereby driving the extrusion part 31 to extend or retract. The first driving mechanism can provide driving force for the extrusion part 31.

[0053] like Figure 3 As shown, the material discharge assembly 2 is provided with an opening 21, and the opening 21 is suitable for allowing materials to pass through. By providing the opening 21 on the material discharge assembly 2, when the material falls on the material discharge assembly 2, the material with a small particle size falls directly through the opening 21, and the material with a large particle size is squeezed into a small particle size by the extrusion assembly and then falls through the opening 21. Since only the material with a large particle size needs to be squeezed by the extrusion assembly, the speed of the material passing through the material discharge assembly 2 can be increased. The small particle size here refers to the particle size of the material being smaller than the size of the opening 21, and the large particle size refers to the particle size of the material being larger than the size of the opening 21. As a convertible embodiment, it can also be that the material discharge assembly 2 is divided into two left and right plates, the opening in the middle of the two plates is suitable for allowing materials to pass through, and one end of the two plates away from the middle opening is hinged to the end of the fixed plate 5. When all the materials falling on the material discharge assembly 2 are squeezed into small particle sizes, the opening between the two plates is opened for the material to pass through. When all the materials on the material discharge assembly 2 are not squeezed into small particle sizes, the opening between the two plates is closed to prevent the material from passing through.

[0054] like Figure 3As shown, the maximum diameter of the opening 21 is not greater than 4 cm, the opening 21 is a circular through hole, and there are multiple openings 21. By setting the maximum diameter of the opening 21 to be no greater than 4 cm, it is convenient to squeeze the material into small particles before crushing, reducing the risk of clogging the crushing component 1; the opening 21 is set to be circular, which is convenient for processing; by setting multiple openings 21, it is convenient to speed up the falling speed of the material. As a convertible embodiment, the maximum diameter of the opening 21 can also be set to other values, and the specific values ​​can be determined according to actual conditions, and there are no excessive restrictions here. As a convertible embodiment, the opening 21 can also be set to a polygon, an ellipse or other irregular shapes, and there are no excessive restrictions here.

[0055] like Figure 2 As shown, a weight sensor 4 is provided on the material discharge component 2. By providing the weight sensor 4 on the material discharge component 2, when the weight sensor 4 senses that material has fallen, or the weight of the fallen material exceeds a preset value, it means that material with a larger particle size is stored on the material discharge component 2, and the extrusion component starts to work, which has a high degree of automation and can effectively save costs.

[0056] like Figure 2 As shown, two weight sensors 4 are provided; and the two weight sensors 4 are provided at the lower side of the material discharging component 2. By providing two weight sensors 4, the signal detection is more accurate, and it can be prevented that the operation of the device is affected when one of the sensors fails; the weight sensor 4 is provided at the lower side of the material discharging component 2, so that it can accurately detect whether there is material falling on the material discharging component 2. As a convertible embodiment, multiple weight sensors 4 can also be provided to prevent other sensors from failing at the same time.

[0057] like Figure 4 As shown, the crushing assembly 1 includes two transmission mechanisms, each of which includes: a rolling roller 11; a rotating shaft 12, and the rolling roller 11 is sleeved on the rotating shaft 12; a conveyor belt 13, one end of which is connected to the rotating shaft 12; a second motor 14, which is connected to the other end of the conveyor belt 13; the second motor 14 is suitable for driving the rotating shaft 12 to rotate, and then driving the rolling roller 11 to rotate. The two rolling rollers 11 of the two transmission mechanisms rotate towards each other and are suitable for crushing materials. Among them, the cross-section of the rolling roller 11 is set to be circular. As a convertible embodiment, it is also possible that the rolling roller 11 is directly connected to the output shaft of the second motor 14. As a convertible embodiment, it is also possible that the cross-section of the rolling roller 11 is set to be corrugated.

[0058] In this embodiment, the power of the crushing assembly 1 is adjustable, and is suitable for crushing materials of different hardness. Specifically, the output power of the second motor 14 is adjustable, and the second motor 14 can select different output powers according to the hardness of the material.

[0059] The working principle of the crushing device in this embodiment is as follows:

[0060] Step 1: When the material does not fall onto the unloading assembly 2, the weight sensor 4 does not detect a signal, the first motor 33 stops working, the squeezing part 31 is retracted, and the second motor 14 drives the rolling roller 11 to continue to operate;

[0061] Step 2: The material starts to fall onto the unloading assembly 2, the weight sensor 4 detects a signal, the first motor 33 starts to work, and drives the telescopic rod 32 to extend, thereby driving the extrusion part 31 to move toward each other to extrude the material, then the first motor 33 drives the extrusion part 31 to retract, and repeats this action until the weight sensor 4 detects no signal, and the extruded material falls from the opening 21 into the lower channel, and is crushed between the two crushing rollers 11;

[0062] Step 3: Repeat the above steps 1 and 2 to continuously crush the material.

[0063] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A comminution device, characterized in that: include: A pulverizing assembly (1), wherein the pulverizing assembly (1) is provided with a passage for materials to pass through; A material discharge assembly (2) is arranged above the pulverizing assembly (1), a weight sensor (4) is arranged on the material discharge assembly (2), and the material discharge assembly (2) is suitable for storing materials and allowing the materials to pass through; At least two extrusion assemblies are movably arranged above the material lowering assembly (2), and at least two of the extrusion assemblies are suitable for moving towards each other to extrude the material stored on the material lowering assembly (2).

2. The pulverizing device according to claim 1, characterized in that: The extrusion assembly comprises: The extrusion parts (31), at least two of the extrusion parts (31) on the extrusion components move toward each other and are suitable for extruding the material.

3. The pulverizing device according to claim 2, characterized in that: A plurality of protrusions are provided on a side of the extrusion portion (31) close to the material.

4. The pulverizing device according to claim 3, characterized in that: The protrusions between at least two of the extrusion parts (31) disposed opposite to each other are symmetrically arranged.

5. The pulverizing device according to claim 3, characterized in that: The protrusions between at least two of the extrusion parts (31) disposed opposite to each other are arranged crosswise.

6. The pulverizing device according to claim 2, characterized in that: The extrusion assembly comprises: A first driving mechanism is connected to the extrusion portion (31), and the first driving mechanism is suitable for driving the extrusion portion (31) to move.

7. The pulverizing device according to any one of claims 1 to 6, characterized in that: The material discharge assembly (2) is provided with an opening (21), and the opening (21) is suitable for allowing the material to pass through.

8. The pulverizing device according to claim 7, characterized in that: The maximum diameter of the opening (21) is no greater than 4 cm; And / or, the opening (21) is a circular through hole; And / or, the opening (21) is provided in plurality.

9. The pulverizing device according to any one of claims 1 to 6, characterized in that: The weight sensors (4) are provided with at least two; And / or, the weight sensor (4) is arranged on the lower side of the blanking component (2).

10. The pulverizing device according to any one of claims 1 to 6, characterized in that: The material is a positive electrode material for a lithium battery.

11. The pulverizing device according to any one of claims 1 to 6, characterized in that: The power of the pulverizing component (1) is adjustable and is suitable for pulverizing materials of different hardness.

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