Shaping and granulation equipment and electrode production equipment

Abstract

This utility model provides a shaping and granulation device and an electrode production equipment. The shaping and granulation device includes: a machine body with a shaping cavity and a feeding channel on one side of the machine body, the feeding channel communicating with the shaping cavity; a screen disposed in the machine body and blocking the discharge port of the shaping cavity; a shaping component movably disposed in the shaping cavity, the shaping component having a pressing surface on the side near the screen; the gap between the pressing surface and the screen gradually increases along the direction of movement of the shaping component, the feeding direction of the gap being opposite to the direction of movement; and a driving component disposed in the machine body and connected to the shaping component to drive the shaping component to move.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and more specifically, to a shaping and granulation device and an electrode production equipment. Background Technology

[0002] In dry electrode production, the positive and negative electrode active materials and binders are mixed under high-speed shearing to form fibrous powder. However, due to the binder, the powder is prone to agglomeration during the feeding stage, resulting in uneven particle size distribution and affecting film quality. Current technology uses a combination of vibrating screen and crusher: the vibrating screen separates small particles into the film-forming roller, while larger particles are crushed and then screened again. This method results in uncontrollable particle size control, is prone to over-crushing, damages the internal fibrous structure of the powder, and reduces film strength. Utility Model Content

[0003] This invention provides a new technical solution for a shaping and granulation device, which can at least solve the technical problem that existing devices easily damage the fibrous structure of powder.

[0004] This utility model also provides a new technical solution for electrode production equipment.

[0005] According to a first aspect of the present invention, a shaping and granulation device is provided, comprising: a machine body having a shaping cavity, a feeding channel on one side of the machine body communicating with the shaping cavity; a screen disposed in the machine body and blocking the discharge port of the shaping cavity; a shaping component movably disposed within the shaping cavity, the shaping component having a pressing surface on the side near the screen; the gap between the pressing surface and the screen gradually increasing along the direction of movement of the shaping component, the wide end of the gap being the receiving end; and a driving component disposed in the machine body and connected to the shaping component to drive the shaping component to move.

[0006] Optionally, the shaping component is rotatably disposed within the shaping cavity.

[0007] Optionally, the shaping assembly includes: a rotating shaft disposed in the shaping cavity and connected to the driving assembly; and a cutter disc disposed on the rotating shaft, the cutter disc having at least one cutting tooth extending radially thereon, the cutting tooth having the pressing surface on the side near the screen.

[0008] Optionally, the cutter teeth are symmetrical about their center line in the axial direction of the rotation axis in a cross section perpendicular to their length direction.

[0009] Optionally, the cross-section of the cutting tooth perpendicular to its length direction is circular, elliptical, triangular, or trapezoidal.

[0010] Optionally, the distance between the cutter head and the screen can be adjusted.

[0011] Optionally, the rotating shaft includes: a first shaft body, the first end of which is connected to the drive assembly; a second shaft body, the first end of which is non-rotatably disposed along its axis at the second end of the first shaft body, and the cutter head is fixedly connected to the second shaft body; and an elastic element disposed between the first shaft body and the second shaft body.

[0012] Optionally, the rotating shaft further includes a fixing member disposed on one of the first shaft body and the second shaft body, and capable of being engaged or disengaged from the other in a controlled manner to restrict or allow relative movement of the two along their axes.

[0013] Optionally, the rotating shaft includes: a first shaft body, a first end of which is connected to the drive assembly; a second shaft body, a first end of which is movably disposed at a second end of the first shaft body along its axis, the cutter head being fixedly connected to the second shaft body; and a fixing member, which is disposed on one of the first shaft body and the second shaft body and is controllably engaged or disengaged from the other to restrict or allow relative movement of the two along their axes.

[0014] Optionally, the screen is detachably disposed on the machine body.

[0015] According to a second aspect of the present invention, an electrode production apparatus is provided, comprising the shaping and granulation device described in any of the preceding claims.

[0016] According to the shaping and granulation device of this utility model, the shaping component is driven by the driving component to force the powder to be pressed against the screen, thereby forcing the agglomerated powder to pass through the screen and obtaining powder of the required particle size, which can ensure the consistency of powder particle size. Compared with the prior art, the shaping and granulation device provided in this embodiment can refine and shape the powder particles while maintaining the internal fibers of the powder, thereby ensuring the film strength.

[0017] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0019] Figure 1 This is a schematic diagram of the structure of a shaping and granulation device according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the shaping component of a shaping and granulating device according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the shaping component of a shaping and granulating apparatus according to another embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional view of the blade teeth and screen of a shaping and granulating device according to an embodiment of the present invention;

[0023] Figure 5 This is a top view of the screen of a shaping and granulating device according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of a cutter head according to an embodiment of the present invention.

[0025] Figure Labels

[0026] 100. Shaping and granulation device; 200. Powder;

[0027] 10. Machine body; 11. Shaping cavity; 12. Shaping chamber; 13. Feeding chamber; 14. Discharging chamber; 20. Screen; 30. Shaping assembly; 31. Rotating shaft; 311. First shaft; 312. Second shaft; 313. Elastic element; 314. Fixing element; 32. Cutter disc; 321. Cutter teeth; 322. Lower pressing surface; 40. Drive assembly. Detailed Implementation

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0030] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0031] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0033] The shaping and granulation apparatus 100 according to an embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0034] like Figures 1 to 6 As shown, the shaping and granulation device 100 according to an embodiment of the present utility model includes: a body 10, a screen 20, a shaping component 30, and a driving component 40.

[0035] Specifically, the machine body 10 is provided with a shaping cavity 11, and a feeding channel is provided on one side of the machine body 10, which is connected to the shaping cavity 11. The screen 20 is provided on the machine body 10 and covers the discharge port of the shaping cavity 11. The shaping component 30 is movably provided in the shaping cavity 11, and the side of the shaping component 30 near the screen 20 is provided with a pressing surface 322. Along the direction of movement of the shaping component 30, the gap between the pressing surface 322 and the screen 20 gradually increases, and the wide end of the gap is the receiving end. The driving component 40 is provided on the machine body 10 and connected to the shaping component 30 to drive the shaping component 30 to move.

[0036] In other words, such as Figures 1 to 5 As shown, the shaping and granulating device 100 according to an embodiment of the present invention is mainly used for shaping and granulating agglomerated powder 200. The shaping and granulating device 100 mainly includes a machine body 10 and a screen 20. The machine body 10 has a shaping cavity 11, and a feeding channel is provided on one side of the shaping cavity 11. The axis of the feeding channel is inclined to the axis of the shaping cavity 11, and the lower end of the feeding channel communicates with the shaping cavity 11, allowing the powder 200 to enter the shaping cavity 11 through the feeding channel. A discharge port is provided below the shaping cavity 11, and the screen 20 is fixedly connected to the discharge port of the shaping cavity 11, covering the entire discharge port of the shaping cavity 11, so that the material must pass through the mesh of the screen 20 before entering the film-forming roller. A shaping component 30 is movably provided inside the shaping cavity 11. A drive component 40 is provided on one side of the body 10. The output end of the drive component 40 is connected to the shaping component 30. The drive component 40 can drive the shaping component 30 to move inside the shaping cavity 11.

[0037] like Figures 1 to 4As shown, in this embodiment, the shaping component 30 has a pressing surface 322 on the side near the screen 20. The gap between the pressing surface 322 and the screen 20 gradually increases along the direction of movement of the shaping component 30, and the wide end of the gap (i.e., the wider end) is formed as the receiving end. During the movement of the shaping component 30, the gap captures the agglomerated powder 200 in the shaping cavity 11 at the receiving end. As the shaping component 30 continues to move, the pressing surface 322 forcibly presses the powder 200 against the screen 20, thereby forcing the powder 200 to pass through the screen 20, thus completing the shaping and granulation process of the agglomerated powder 200, and finally obtaining powder 200 of the desired particle size.

[0038] Therefore, according to the shaping and granulation device 100 provided in this embodiment, the shaping component 30 is driven by the driving component 40 to move, so that the shaping component 30 can force the powder 200 to press against the screen 20, thereby forcing the agglomerated powder 200 to pass through the screen 20, thus obtaining the powder 200 with the required particle size, which can ensure the consistency of the particle size of the powder 200. Compared with the prior art, the shaping and granulation device 100 provided in this embodiment can refine and shape the powder 200 particles while maintaining the internal fibers of the powder 200, thereby ensuring the film strength.

[0039] In some specific embodiments of this utility model, the shaping component 30 is rotatably disposed within the shaping cavity 11.

[0040] In other words, the shaping component 30 is rotatable within the shaping cavity 11, and the fine shaping of the powder 200 particles can be achieved through the rotation of the shaping component 30. When the direction of movement of the shaping component 30 is clockwise, the powder 200 enters the gap between the lower pressing surface 322 and the screen 20 in a counterclockwise direction relative to the shaping component 30. Using the rotation of the shaping component 30 to achieve the shaping function has a relatively simple structure and can effectively avoid an overly complex overall structure. For example, the drive component 40 is mainly composed of a motor, which is fixedly connected to the machine body 10. The output end of the motor is connected to the shaping component 30 through a transmission mechanism, or directly connected to the shaping component 30, thereby driving the shaping component 30 to rotate.

[0041] In some optional embodiments of this invention, the shaping component 30 moves along a straight extension direction parallel to the screen 20.

[0042] According to one embodiment of the present invention, the shaping component 30 includes: a rotating shaft 31 disposed in the shaping cavity 11 and connected to the driving component 40; and a cutter disc 32 disposed on the rotating shaft 31, the cutter disc 32 having at least one blade 321 extending radially therein, and the side of the blade 321 near the screen 20 having the pressing surface 322.

[0043] Specifically, such as Figures 1 to 3 As shown, the shaping assembly 30 mainly includes a rotating shaft 31 and a cutter disc 32. The axis of the rotating shaft 31 is perpendicular to the screen 20. The rotating shaft 31 is located inside the shaping cavity 11. The first end (e.g., the upper end) of the axis is away from the screen 20, and the second end (e.g., the lower end) of the rotating shaft 31 is close to the screen 20. The first end of the rotating shaft 31 is fixedly connected to the drive assembly 40, and the cutter disc 32 is sleeved on the second end of the rotating shaft 31 and fixedly connected to it. A plurality of cutter teeth 321 are provided on the outer side of the cutter disc 32. The cutter teeth 321 extend radially along the cutter disc 32 and are evenly distributed circumferentially around the cutter disc 32. At least a portion of the surface of the cutter teeth 321 near the screen 20 is formed as a pressing surface 322.

[0044] In this embodiment, the shaping component 30 consists of a rotating shaft 31 and a cutter head 32, which has a simple structure and is easy to manufacture.

[0045] In some specific embodiments of this utility model, the cutter tooth 321 is symmetrical about its center line in the axial direction of the rotation axis 31 in the cross section perpendicular to its length direction.

[0046] In other words, such as Figure 4 As shown, the blade teeth 321 have a symmetrical cross-section perpendicular to their length direction, and are symmetrical about the center line of this cross-section along the axial direction of the rotation axis 31. Therefore, the driving force of the drive assembly 40 is not required to be in either the forward or reverse direction. Regardless of whether the drive assembly 40 drives the cutter head 32 to rotate forward or backward, the blade teeth 321 can effectively press the powder 200 against the screen 20, thereby reducing the risk of failure of the shaping and granulating device 100 due to changes in the direction of the driving force and improving the reliability of the shaping and granulating device 100.

[0047] According to one embodiment of the present invention, the cross-section of the cutting tooth 321 perpendicular to its length direction is circular, elliptical, triangular or trapezoidal.

[0048] In this embodiment, the pressing surface 322 can be an arc-shaped surface or an inclined surface relative to the screen 20. Specifically, the blade 321 is formed as a rod extending radially along the rotation axis 31, and the cross-section of the rod perpendicular to its length direction can be circular, elliptical, triangular, or trapezoidal. If the cross-section is circular or elliptical, a portion of the side wall of the rod is formed as the pressing surface 322. In this case, the side wall of the rod is a blunted surface, which can effectively prevent the blade 321 from damaging the internal fiber structure of the powder 200. If the cross-section is triangular or trapezoidal, when welding the blade 321, the base of the triangle or trapezoid can be placed on the same plane as one end of the cutter head 32 body for welding, thereby making the welding operation more convenient. Preferably, the blade 321 is a cylindrical structure extending radially along the rotation axis 31. Cylindrical structures are widely available and do not require complex processing, which can effectively reduce production costs.

[0049] In some specific embodiments of this utility model, the distance between the cutter disc 32 and the screen 20 is adjustable.

[0050] Specifically, the position of the cutter disc 32 relative to the screen 20 is adjustable along the axial direction of the rotating shaft 31. The closer the cutter disc 32 is to the screen 20, the greater the extrusion force of the cutter teeth 321 on the powder 200. Thus, the position of the cutter disc 32 relative to the screen 20 can be adjusted according to the characteristics of different powders 200, making the shaping and granulating device 100 applicable to different powders 200 and effectively improving the applicability of the shaping and granulating device 100.

[0051] According to one embodiment of the present invention, the rotating shaft 31 includes: a first shaft body 311, the first end of the first shaft body 311 being connected to the driving assembly 40; a second shaft body 312, the first end of the second shaft body 312 being movably disposed along its axis at the second end of the first shaft body 311, the cutter head 32 being fixedly connected to the second shaft body 312; and an elastic member 313, the elastic member 313 being disposed between the first shaft body 311 and the second shaft body 312.

[0052] In other words, such as Figure 2 and Figure 3As shown, the rotating shaft 31 mainly includes a first shaft body 311, a second shaft body 312, and an elastic element 313. The first end of the first shaft body 311 is connected to the drive assembly 40, and the first end of the second shaft body 312 is movably disposed axially at the second end of the first shaft body 311. Specifically, a sliding key is fixedly connected to the side wall of the first end of the second shaft body 312, and the cutter head 32 is fixedly connected to the second end of the second shaft body 312. The second end of the first shaft body 311 has a insertion hole with a keyway adapted to the sliding key. The second end of the second shaft body 312 is inserted into the insertion hole, and the sliding key is located within the keyway. Through the cooperation of the sliding key and the keyway, the second shaft body 312 can be guided axially, allowing it to move axially relative to the first shaft body 311, and effectively preventing relative rotation between the second shaft body 312 and the first shaft body 311. Furthermore, if the cross-section of the first end of the second shaft 312 is non-circular, the sliding key and keyway structure can be omitted, thus preventing relative rotation between the second shaft 312 and the first shaft 311. The elastic element 313 can be a spring, and it is extendable and retractable in the axial direction of the second shaft 312. The elastic element 313 is located inside the insertion hole, with its first end connected to the first shaft 311 and its second end connected to the second shaft 312, allowing the cutter head 32 to elastically float in the axial direction of the second shaft 312.

[0053] During use, the elastic element 313 can provide a certain downward pressure to the cutter head 32, which can ensure the smooth operation of the shaping and granulating device 100, and at the same time effectively avoid the risk of damage to parts caused by the downward pressure exceeding the reasonable range, thus ensuring the reliability and durability of the shaping and granulating device 100.

[0054] In some specific embodiments of this utility model, the rotating shaft 31 further includes a fixing member 314, which is disposed on one of the first shaft body 311 and the second shaft body 312, and can be engaged or disengaged from the other in a controlled manner to restrict or allow the relative movement of the two along their axes.

[0055] Specifically, such as Figure 2As shown, the second end of the first shaft 311 is provided with a insertion hole, and the first end of the second shaft 312 is inserted into the insertion hole. The rotating shaft 31 also includes a fixing member 314, which can be a screw. The side wall of the first shaft 311 is provided with a threaded hole, which communicates with the insertion hole. One end of the fixing member 314 is threaded into the threaded hole. When the fixing member 314 is tightened, one end of the fixing member 314 abuts against the side wall of the second shaft 312, so that the fixing member 314 and the second shaft 312 are engaged, thereby restricting the relative movement of the first shaft 311 and the second shaft 314 along their axis, so that the second shaft 312 is locked on the first shaft 311; when the fixing member 314 is loosened, the fixing member 314 is separated from the second shaft 312, thereby allowing the relative movement of the first shaft 311 and the second shaft 314 along their axis.

[0056] In this embodiment, the fixing member 314 allows the shaping component 30 to switch between two states, thereby determining whether the cutter head 32 floats elastically or remains fixed according to actual usage requirements, which can meet different usage needs.

[0057] According to one embodiment of the present invention, the rotating shaft 31 includes: a first shaft body 311, the first end of which is connected to the drive assembly 40; a second shaft body 312, the first end of which is movably disposed along its axis at the second end of the first shaft body 311, and the cutter head 32 is fixedly connected to the second shaft body 312; and a fixing member 314, which is disposed on one of the first shaft body 311 and the second shaft body 312, and is capable of being engaged or disengaged from the other in a controlled manner to restrict or allow relative movement of the two along the axial direction.

[0058] In other words, the rotating shaft 31 of this embodiment mainly includes a first shaft 311, a second shaft 312, and a fixing member 314. The first end of the first shaft 311 is connected to the drive assembly 40, and the first end of the second shaft 312 is movably disposed axially at the second end of the first shaft 311. Specifically, the second end of the first shaft 311 has a insertion hole, and the second end of the second shaft 312 is inserted into the insertion hole, with a sliding key located within a keyway. Through the cooperation of the sliding key and the keyway, the second shaft 312 can be guided axially, allowing it to move axially relative to the first shaft 311, and effectively preventing relative rotation between the two shafts. The fixing member 314 can be a screw, and the side wall of the first shaft 311 has a threaded hole communicating with the insertion hole. One end of the fixing member 314 is threaded into the threaded hole. When the fastener 314 is tightened, one end of the fastener 314 abuts against the side wall of the second shaft 312, thereby engaging the fastener 314 with the second shaft 312 and restricting the relative movement of the first shaft 311 and the second shaft 314 along their axis, thus locking the second shaft 312 onto the first shaft 311; when the fastener 314 is loosened, the fastener 314 separates from the second shaft 312, thereby allowing the relative movement of the first shaft 311 and the second shaft 314 along their axis.

[0059] In this embodiment, the distance between the cutter disc 32 and the screen 20 can be adjusted by loosening the fixing member 314; after adjustment, the distance can be locked by tightening the fixing member 314. The structure is simple and the operation is convenient.

[0060] In some specific embodiments of this utility model, the screen 20 is detachably disposed on the machine body 10.

[0061] Specifically, such as Figure 1 As shown, the machine body 10 mainly includes a shaping chamber 12, a feeding chamber 13, and a discharging chamber 14. The shaping chamber 12 is cylindrical, and the drive assembly 40 is fixedly connected to its upper end. The inner wall of the shaping chamber 12 defines a shaping cavity 11. The feeding chamber 13 is fixedly connected to the shaping chamber 12, and its inner wall defines a feeding channel that communicates with the shaping cavity 11. Powder 200 can be added to the shaping cavity 11 through the feeding chamber 13. The bottom of the shaping chamber 12 is open, serving as a discharge port. The screen 20 and the discharging chamber 14 are fixedly connected to the lower end of the feeding chamber 13 using multiple screws, allowing the screen 20 and the discharging chamber 14 to be disassembled. This allows for quick replacement of screens 20 of different specifications according to process requirements and facilitates subsequent cleaning and maintenance.

[0062] It should be noted that the mesh size of the screen 20 includes, but is not limited to, circular mesh, and its aperture can be determined according to the specific dimensions of the granulation process. This embodiment will not elaborate further.

[0063] An embodiment of the present invention also provides an electrode production apparatus, including a shaping and granulation device 100 implementing any embodiment. Since the shaping and granulation device 100 according to the embodiments of the present invention has the above-mentioned technical effects, the electrode production apparatus according to the embodiments of the present invention also has corresponding technical effects, which will not be repeated in this embodiment.

[0064] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0065] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A shaping granulating apparatus characterized by comprising: include: The machine body (10) is provided with a shaping cavity (11), and a feeding channel is provided on one side of the machine body (10), which is connected to the shaping cavity (11); A screen (20) is provided on the machine body (10) and blocks the discharge port of the shaping cavity (11); A shaping component (30) is movably disposed in the shaping cavity (11), and the shaping component (30) has a pressing surface (322) on the side near the screen (20); Along the direction of movement of the shaping component (30), the gap between the pressing surface (322) and the screen (20) gradually increases, and the wide end of the gap is the receiving end; A drive assembly (40) is disposed on the body (10) and connected to the shaping assembly (30) to drive the shaping assembly (30) to move.

2. The shaping granulating apparatus according to claim 1, wherein The shaping component (30) is rotatably disposed within the shaping cavity (11).

3. The shaping and granulating apparatus according to claim 2, wherein The shaping component (30) includes: A rotating shaft (31) is disposed in the shaping cavity (11) and is connected to the driving assembly (40); A cutter disc (32) is disposed on the rotating shaft (31). The cutter disc (32) has at least one cutting tooth (321) extending radially thereon. The cutting tooth (321) has the pressing surface (322) on the side near the screen (20).

4. The shaping and granulating apparatus according to claim 3, wherein The cutting teeth (321) are symmetrical about their center line in the axial direction of the rotation axis (31) in a cross section perpendicular to their length direction.

5. The shaping and granulating apparatus according to claim 3 or 4, wherein The cross-section of the cutting tooth (321) perpendicular to its length direction is circular, elliptical, triangular or trapezoidal.

6. The shaping granulating apparatus according to claim 3, wherein The distance between the cutter head (32) and the screen (20) is adjustable.

7. The apparatus according to claim 3, wherein The rotating shaft (31) includes: A first shaft (311) is connected at its first end to the drive assembly (40); The second shaft (312) has its first end non-rotatably disposed along its axis at the second end of the first shaft (311), and the cutter head (32) is fixedly connected to the second shaft (312). An elastic element (313) is disposed between the first shaft (311) and the second shaft (312).

8. The shaping and granulating apparatus according to claim 7, wherein The rotating shaft (31) also includes: A fastener (314) is disposed on one of the first shaft (311) and the second shaft (312) and is capable of being engaged or disengaged in a controlled manner with the other to restrict or allow relative movement of the two along their axes.

9. The shape-making granulating apparatus according to claim 3, wherein The rotating shaft (31) includes: A first shaft (311) is connected at its first end to the drive assembly (40); The second shaft (312) has its first end movably disposed along its axis at the second end of the first shaft (311), and the cutter head (32) is fixedly connected to the second shaft (312). A fastener (314) is provided on one of the first shaft (311) and the second shaft (312) and is capable of being engaged or disengaged from the other in a controlled manner to restrict or allow relative movement of the two along the axial direction.

10. The shaping granulating apparatus according to claim 1, wherein The screen (20) is detachably mounted on the machine body (10).

11. An electrode production apparatus characterized by comprising: The granulation apparatus includes any one of claims 1 to 10.

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