Powder anti-sticking mechanism and powder processing equipment

Abstract

A powder anti-sticking mechanism comprises a knocking piece, a driving piece and a reset piece. The knocking piece comprises a knocking head and a connecting rod, and the knocking head is connected to one end of the connecting rod. The driving piece is connected to the other end of the connecting rod, and the driving piece is used for intermittently driving the connecting rod to move in the preset direction; the reset piece is connected to the connecting rod and used for continuously pushing the connecting rod to move in the direction opposite to the preset direction. In addition, the utility model further provides powder processing equipment. The powder anti-sticking mechanism provided by the utility model has the advantage of effectively inhibiting powder adhesion.

Description

Technical Field

[0001] This utility model relates to the field of powder processing equipment, specifically to a powder anti-sticking mechanism and powder processing equipment. Background Technology

[0002] In the production process of lithium battery new energy material powders (such as ternary cathode materials, silicon-carbon anode materials, etc.), the powder is prone to adhere and accumulate on the inner wall of cylindrical equipment (drying cylinder, mixing cylinder, etc.) due to its characteristics such as fine particle size, large specific surface area and strong electrostatic adsorption.

[0003] While existing technologies can partially alleviate adhesion through methods such as cylinder wall coating, airflow cleaning, or mechanical scrapers, significant drawbacks remain: the heat insulation layer formed by the adhered powder on the cylinder wall severely reduces the heat transfer efficiency during the heating process, leading to uneven heating of the powder, local overheating, or excessive solvent residue, directly affecting the consistency of the material's electrochemical performance; at the same time, the adhered powder is difficult to completely detach from the cylinder wall, resulting in a decrease in the effective volume of the equipment and an increase in the discharge residue rate, ultimately leading to a decrease in system yield and an increase in production costs. Utility Model Content

[0004] In view of this, this application provides a powder anti-sticking mechanism and powder processing equipment to effectively suppress powder adhesion.

[0005] A powder anti-sticking mechanism includes a striking component, a driving component, and a resetting component. The striking component includes a striking head and a connecting rod, the striking head being connected to one end of the connecting rod. The driving component is connected to the other end of the connecting rod and is used to intermittently drive the connecting rod to move along a preset direction. The resetting component is connected to the connecting rod and is used to continuously push the connecting rod to move in the opposite direction of the preset direction.

[0006] In some possible implementations, the drive component includes a motor and a gear, the gear being fitted onto the power output shaft of the motor, and a rack being provided at one end of the connecting rod, the rack extending in the same direction as the connecting rod, the rack meshing with the gear.

[0007] In some possible implementations, the gear includes a body and a plurality of teeth, which are distributed in a non-uniform manner along the periphery of the body.

[0008] In some possible implementations, the plurality of teeth are divided into multiple groups, with a toothless area between each two adjacent groups, and the central angle of the rotation center of the body corresponding to the toothless area is 10 to 80 degrees.

[0009] In some possible implementations, the powder anti-sticking mechanism further includes a mounting component, which includes a base plate, a first side plate, and a second side plate. The first side plate and the second side plate are respectively connected to opposite ends of the base plate to form an installation space. The motor is located on the side of the base plate away from the installation space, and the power output shaft of the motor passes through the base plate. The gear is located within the installation space.

[0010] In some possible implementations, the reset member includes a sleeve and a first elastic member. One end of the sleeve is connected to the first side plate. The connecting rod is movably inserted through the sleeve. The rack extends into the mounting space. A first stop is provided on the outer side of the connecting rod. A retaining ring is provided on the inner wall of the sleeve. One end of the first elastic member abuts against the first stop and the other end abuts against one side of the retaining ring.

[0011] In some possible implementations, the reset member further includes a second elastic member, and a second stop is provided protruding from the outer side of the connecting rod. One end of the second elastic member abuts against the second stop, and the other end abuts against the other side of the retaining ring.

[0012] In some possible implementations, the elastic coefficient of the first elastic element is greater than that of the second elastic element, and both the first and second elastic elements are springs, the springs being sleeved on the connecting rod.

[0013] A powder processing device includes a cylinder, a mounting frame, and a powder anti-sticking mechanism as described above. The cylinder is disposed inside the mounting frame, and the powder anti-sticking mechanism is disposed on the outside of the cylinder. One end of the powder anti-sticking mechanism is connected to the mounting frame, and the striking head is used to intermittently strike the cylinder.

[0014] In some possible implementations, a reinforcing plate is also included, which is disposed on the cylinder, and the striking head is used to strike the reinforcing plate.

[0015] The powder anti-sticking mechanism provided in this application includes a striking component, a driving component, and a resetting component. The striking component comprises a striking head and a connecting rod, with the striking head connected to one end of the connecting rod. The driving component is connected to the other end of the connecting rod and is used to intermittently drive the connecting rod to move in a preset direction. The resetting component is connected to the connecting rod and is used to continuously push the connecting rod to move in the opposite direction of the preset direction. This allows the striking head to strike the cylinder, thereby helping to control the adhesion of powder to the cylinder during long-term operation of the powder processing equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a powder processing device provided in an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of a powder processing mechanism provided in an embodiment of this application.

[0018] Figure 3 for Figure 2 The shown is a cross-sectional view of the powder processing mechanism along line III-III.

[0019] Explanation of main component symbols

[0020] Powder processing equipment 100

[0021] Cylinder 10

[0022] Powder anti-sticking mechanism 20

[0023] Striking component 21

[0024] Knock on head 211

[0025] Connecting rod 212

[0026] Drive component 22

[0027] Motor 221

[0028] Gear 222

[0029] Toothless area 223

[0030] Rack 121

[0031] Reset component 23

[0032] Installation part 25

[0033] Base plate 251

[0034] First side panel 252

[0035] Second side panel 253

[0036] Installation space 254

[0037] Mounting bracket 30

[0038] Sleeve 31

[0039] First elastic element 32

[0040] Second elastic element 33

[0041] 311 retaining ring

[0042] First block 123

[0043] Second block 124

[0044] Support platform 40

[0045] Frame 41

[0046] Handrail staircase 42

[0047] Reinforcing plate 50

[0048] Preset direction A. Detailed Implementation

[0049] The embodiments of this application are described in detail below. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application; it should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; where there is no conflict, the implementation methods and features of the implementation methods of this application can be combined with each other; many specific details are set forth in the following description to provide a full understanding of this application, and the described implementation methods are only a part of the implementation methods of this application, and not all of the implementation methods.

[0050] In the various embodiments of this application, for ease of description and not limitation, the term "connection" used in the patent application specification and claims is not limited to physical or mechanical connections, whether direct or indirect. Terms such as "upper," "lower," "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0051] Please see Figure 1 One embodiment of this application provides a powder processing equipment 100 for processing powders, including ternary cathode materials, silicon-carbon anode materials, etc., and the processing includes drying, mixing, etc.

[0052] The powder processing equipment 100 includes a cylinder 10, a powder anti-sticking mechanism 20, and a mounting frame 30. The cylinder 10 is housed within the mounting frame 30 and can rotate around its axis to transport and heat the powder. The powder anti-sticking mechanism 20 is located on the outside of the cylinder 10 and connected to the mounting frame 30. It is used to intermittently tap the cylinder 10 during powder processing to reduce powder accumulation, improve the uniformity of temperature distribution within the cylinder 10, thereby increasing heat utilization efficiency and product quality. Furthermore, this tapping method helps reduce internal residue in the cylinder 10, facilitating subsequent maintenance and cleaning operations, and ultimately extending the equipment's service life.

[0053] Specifically, the material of the mounting frame 30 can be selected from steel or alloy materials depending on the scale of the equipment and the working environment, in order to withstand the dynamic load and thermal load of the cylinder 10 and the powder inside during the rotation process. One end of the powder anti-sticking mechanism 20 can be fixed to the mounting frame 30 by bolts, welding or detachable connection, and the other end can generate a striking force on the outer surface of the cylinder 10 at an appropriate time.

[0054] In this embodiment, the powder processing equipment 100 further includes a support platform 40. The support platform 40 includes a frame 41 and a handrail staircase 42. The handrail staircase 42 is located on opposite sides of the frame 41. The mounting frame 30 is mounted on the frame 41. This allows operators to quickly and safely climb onto the corresponding parts of the frame 41 during inspections or maintenance to closely check the working status of the cylinder 10, the mounting frame 30, and the powder anti-sticking mechanism 20. Anti-slip treads, safety handrails, and railings can be installed on the handrail staircase 42 to further enhance safety during use.

[0055] The support platform 40's frame 41 is made of sturdy structural steel, channel steel, or I-beams, with the cylinder 10 and mounting bracket 30 installed on top of the frame 41. By mounting the cylinder 10 on the frame 41, operators can perform a series of operations or inspections from above or to the side of the frame 41. This modular design also facilitates future maintenance or modification of the powder processing equipment 100. If it is necessary to move or expand the equipment, the support platform 40 can be connected to other equipment or production lines to achieve collaborative operation between devices.

[0056] In this embodiment, the powder processing equipment 100 also includes a reinforcing plate 50. The reinforcing plate 50 is sleeved on the outer wall of the cylinder 10 to absorb and disperse the impact force when the powder anti-sticking mechanism 20 strikes. During long-term operation, the outer wall of the cylinder 10 may experience localized wear or fatigue stress concentration due to frequent impacts. The reinforcing plate 50 helps alleviate this problem and amplifies the instantaneous force generated by the impact over a wider range, thereby making the cylinder 10 less prone to deformation or cracking.

[0057] Specifically, the powder anti-sticking mechanism 20 can be set on both sides of the reinforcing plate 50 to form a double-sided or multi-sided tapping point layout. This allows for more uniform tapping of the cylinder 10, reducing dead zones inside the cylinder 10. In addition, by rationally designing the contact position and angle between the reinforcing plate 50 and the powder anti-sticking mechanism 20, the vibration waveform can be better utilized during tapping to reduce powder adhesion in local areas, improve the fluidity of powder rolling and tumbling, and thus facilitate rapid and uniform heating or mixing.

[0058] Please see Figure 2 and Figure 3In this embodiment, the powder anti-sticking mechanism 20 includes a striking member 21, a driving member 22, and a resetting member 23. The striking member 21 includes a striking head 211 and a connecting rod 212. The striking head 211 is fixedly connected to one end of the connecting rod 212 and is used to strike the reinforcing plate 50, thereby indirectly striking the cylinder 10. The other end of the connecting rod 212 is connected to the driving member 22, which is used to intermittently drive the connecting rod 212 to move in a preset direction A away from the cylinder 10. The resetting member 23 is connected to the connecting rod 212 and is used to continuously push the connecting rod 212 to move in the opposite direction to the preset direction toward the cylinder 10, i.e., A. Thus, when the driving member 22 moves the connecting rod 212 away from the cylinder 10, the reset member 23 is compressed and stores force; when the driving member 22 no longer moves the connecting rod 212 away from the cylinder 10, the reset member 23 moves the connecting rod 212 toward the cylinder 10 and completes one strike on the cylinder 10.

[0059] Specifically, the striking head 211 can be made of a material with high hardness and high wear resistance, such as alloy steel or ceramic. This design helps maintain stable mechanical properties during long-term repeated impacts and reduces the decline in striking effect due to wear of the striking head 211. The contact area between the striking head 211 and the reinforcing plate 50 or the cylinder 10 can be optimized in shape or curvature according to the scale of the equipment, the rotation speed, and the type of powder to obtain better force transmission effect at the moment of impact.

[0060] The driving component 22 includes a motor 221 and a gear 222. The gear 222 is mounted on the power output shaft of the motor 221 and meshes with a rack 121 located at one end of the connecting rod 212. When the output shaft of the motor 221 rotates, the gear 222 rotates accordingly, thereby driving the rack 121 and the connecting rod 212 to perform linear motion. This gear and rack transmission structure facilitates the control of the reciprocating frequency and stroke of the striking head 211 with high precision, and makes it easy to adjust the striking force and interval according to different powder properties.

[0061] In practical operation, the motor 221 can be programmed for control: when the powder adhesion inside the cylinder 10 is high, the speed of the motor 221 can be increased or the reciprocating stroke can be increased, thereby increasing the striking frequency or striking force to allow the stubborn powder inside the cylinder 10 to detach from the cylinder wall. Conversely, if the cylinder 10 is operating normally or does not require frequent striking, the output power of the motor 221 can be reduced or the striking frequency can be decreased to reduce unnecessary energy consumption and mechanical wear. This automated adjustment strategy is beneficial for energy saving and consumption reduction, and maintains the lifespan of the striking component 21.

[0062] The powder anti-sticking mechanism 20 provided in this application, through the combination of a striking component 21, a driving component 22, and a resetting component 23, helps control the adhesion of powder to the cylinder 10 during long-term operation of the powder processing equipment 100. In traditional powder processing, personnel often need to frequently stop the machine or reduce the speed for internal cleaning or striking, resulting in decreased production efficiency. This embodiment, through a mechanized and automated striking device, reduces human intervention and maintains stable operation even in environments with high temperature, high-speed rotation, and high dust levels, thus contributing to improved production continuity and efficiency.

[0063] Furthermore, the engagement of gear 222 and rack 121 ensures the smoothness and precision of the drive process. Stable and controllable reciprocating motion plays a crucial role in the quality of the tapping, especially under high temperatures or extreme conditions. The application of servo motors or stepper motors allows for precise control of the instantaneous position, force, and frequency of each tap. In addition, feedback from the control system allows for real-time adjustments to the tapping rhythm. For example, if a change in powder type alters the adhesion properties, the system can quickly adapt to the new tapping scheme to meet the new production conditions. This automation and intelligence reduce manual intervention and demonstrate higher economic efficiency in large-scale, continuous production.

[0064] In this embodiment, the gear 222 includes a body and multiple teeth. The teeth are distributed non-uniformly along the periphery of the body. The teeth are divided into multiple groups, with a toothless region 223 between each adjacent group. The central angle of the rotation center of the body corresponding to the toothless region 223 is 10-80 degrees. By adding a toothless region 223 to the gear 222, the connecting rod 212 can be idled during certain periods without being driven by the gear 222. In this case, the reset member 23 moves the connecting rod 212 towards the cylinder 10, causing a knocking effect. When the toothless region 223 is uniformly distributed along the outer periphery of the body, it can create a periodic knocking effect on the cylinder 10. If the toothless region 223 is non-uniformly distributed along the outer periphery of the body, it can produce a non-linear periodic knocking effect on the cylinder 10. This non-linear periodicity is more conducive to the vibration separation of powder. For some high-viscosity powders or powders that are prone to agglomeration when heated, this irregular knocking rhythm can improve knocking efficiency. Meanwhile, the 222 tooth profile design of different batches of gears can meet different production needs, making the equipment more widely applicable.

[0065] Specifically, for special powder formulations (such as powders with high oil content or prone to agglomeration), specific tooth profiles and tooth group distribution schemes can be selected to obtain specially tuned tapping patterns. Combined with the programmable speed control of the 221 motor, when changes in powder characteristics or production demands are detected, the operator or automatic control system can switch to different tooth meshing segments, altering the tapping rhythm. For example, high-frequency tapping can be used to quickly loosen the powder during the preheating stage, while intermittent tapping is used during the stable processing stage to maintain powder flowability. This differentiated and adjustable tapping pattern is highly beneficial for improving the overall versatility of the equipment.

[0066] In this embodiment, the powder anti-sticking mechanism 20 further includes a mounting member 25. The mounting member 25 includes a base plate 251, a first side plate 252, and a second side plate 253. The first side plate 252 and the second side plate 253 are respectively connected to opposite ends of the base plate 251, forming a mounting space 254. A motor 221 is mounted on the side of the second side plate 253 facing away from the mounting space 254. The output shaft of the motor 221 passes through the second side plate 253 and enters the mounting space 254. A gear 222 is located within the mounting space 254, thereby driving the rack 121. Thus, the mounting member 25 provides good protection for the drive member 22, making the powder anti-sticking mechanism 20 less susceptible to the effects of dust, splashes, or high-temperature environments.

[0067] Specifically, the mounting space 254 can be designed as an openable or detachable structure. When the equipment requires maintenance or parts need to be replaced, the operator can open the access cover of the mounting space 254 to quickly access the connection between the gear 222 and the motor 221. The base plate 251, the first side plate 252, and the second side plate 253 are usually also thickened or treated with anti-corrosion coatings to cope with high temperatures, dust, humidity, or acid and alkaline environments in long-term working conditions. In some special cases, heat-resistant linings or heat insulation materials can be added inside the mounting component 25 to reduce the impact of external heat radiation on the drive components.

[0068] In this embodiment, the reset member 23 includes a sleeve 31, a first elastic member 32, and a second elastic member 33. The sleeve 31 is connected to the first side plate 252, and the connecting rod 212 slidably passes through the sleeve 31. The connecting rod 212 is also provided with a first stop 123 and a second stop 124, and the inner wall of the sleeve 31 has a retaining ring 311. The first elastic member 32 and the second elastic member 33 are located on both sides of the retaining ring 311 and abut against the first stop 123 and the second stop 124, respectively. Both the first elastic member 32 and the second elastic member 33 are springs, and the elastic coefficient of the first elastic member 32 is greater than that of the second elastic member 33. That is, the first elastic member 32 is harder than the second elastic member 33.

[0069] When the driving member 22 moves the connecting rod 212 away from the cylinder 10, the first elastic member 32 is stretched and the second elastic member 33 is compressed. When the driving member 22 stops moving the connecting rod 212 away from the cylinder 10, the first elastic member 32 pushes the connecting rod 212 back to its initial position through its own elastic force, causing the striking head 211 to strike the cylinder 10. At the same time, the second elastic member 33 changes from a compressed state to a stretched state. After the strike occurs, the connecting rod 212 returns to its original position in time so that the driving member 22 can drive it again.

[0070] The aforementioned "dual-spring" structure enables multi-stage energy storage and release during the striking process, offering greater flexibility and stability compared to a single-spring structure. Its advantages include reducing the instantaneous impact on the striking element 21 and the cylinder 10, and effectively alleviating fatigue and wear under prolonged high-frequency striking conditions. Furthermore, spring combinations with different stiffness coefficients or materials can be selected based on the characteristics of the powder and the mass of the striking head 211 to meet various process requirements. To further reduce vibration or noise during reset, damping material can be added to the inner wall of the sleeve 31 or the retaining ring 311 to provide damping force during the reset process, ensuring the reset element 23 remains stable during high-frequency operation.

[0071] In other embodiments of this application, the drive component 22 uses a pneumatic or hydraulic cylinder instead of the drive structure of the motor 221 and gear 222. The reciprocating motion of the connecting rod 212 can be achieved by controlling the air intake, exhaust, oil intake, and oil discharge of the pneumatic or hydraulic cylinder. Compared to a motor-gear drive, a pneumatic or hydraulic system has a simpler mechanical structure and exhibits good reliability in harsh environments such as high temperatures and dust. For applications requiring high impact force or specific striking frequencies, the pneumatic or hydraulic cylinder can also meet the requirements well. Accordingly, an air compressor or hydraulic pump station needs to be configured, and the striking cycle and force are adjusted using control elements such as valves and solenoid valves. This approach also simplifies the maintenance process of the drive component 22 and achieves a balance between service life and failure rate.

[0072] In other embodiments of this application, the reset member 23 may also employ a magnetic reset structure, that is, using the mutual repulsion or attraction between magnets to cause the connecting rod 212 to automatically return to its original position. Specifically, a permanent magnet or electromagnet device is fixed on the connecting rod 212, and corresponding magnets are also provided at corresponding positions on the inner wall or outer side of the sleeve 31. When the connecting rod 212 is pushed to a certain position by the driving member 22, the magnetic force will change with distance and exert different directions, which can "push" or "pull" the connecting rod 212 back to its initial position at an appropriate time. Compared with traditional springs, the magnetic reset structure has no obvious mechanical wear, has less attenuation during long-term use, and requires less maintenance. For the powder processing equipment 100 that requires long-cycle production, the magnetic reset method can maintain good reset performance while significantly reducing maintenance costs.

[0073] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A powder anti-sticking mechanism, characterized in that, include: A striking element, comprising a striking head and a connecting rod, wherein the striking head is connected to one end of the connecting rod; A driving component is connected to the other end of the connecting rod, and the driving component is used to intermittently drive the connecting rod to move along a preset direction; A reset element is connected to the connecting rod and is used to continuously push the connecting rod to move in the opposite direction of the preset direction.

2. The powder anti-sticking mechanism as described in claim 1, characterized in that, The driving component includes a motor and a gear. The gear is sleeved on the power output shaft of the motor. One end of the connecting rod is provided with a rack. The rack extends in the same direction as the connecting rod and meshes with the gear.

3. The powder anti-sticking mechanism as described in claim 2, characterized in that, The gear includes a body and a plurality of teeth, which are distributed in a non-uniform manner along the periphery of the body.

4. The powder anti-sticking mechanism as described in claim 3, characterized in that, The teeth are divided into multiple groups, and there is a toothless area between each two adjacent groups of teeth. The central angle of the rotation center of the body corresponding to the toothless area is 10 to 80 degrees.

5. The powder anti-sticking mechanism as described in claim 2, characterized in that, The powder anti-sticking mechanism also includes an installation component, which includes a base plate, a first side plate, and a second side plate. The first side plate and the second side plate are respectively connected to opposite ends of the base plate to form an installation space. The motor is located on the side of the base plate away from the installation space. The power output shaft of the motor passes through the base plate, and the gear is located within the installation space.

6. The powder anti-sticking mechanism as described in claim 5, characterized in that, The reset component includes a sleeve and a first elastic element. One end of the sleeve is connected to the first side plate. The connecting rod is movably inserted through the sleeve. The rack extends into the installation space. A first stop is protruding from the outer side of the connecting rod. A retaining ring is protruding from the inner wall of the sleeve. One end of the first elastic element abuts against the first stop and the other end abuts against one side of the retaining ring.

7. The powder anti-sticking mechanism as described in claim 6, characterized in that, The reset component also includes a second elastic element, and a second stop is provided on the outer side of the connecting rod. One end of the second elastic element abuts against the second stop, and the other end abuts against the other side of the retaining ring.

8. The powder anti-sticking mechanism as described in claim 7, characterized in that, The elastic coefficient of the first elastic element is greater than that of the second elastic element. Both the first and second elastic elements are springs, and the springs are sleeved on the connecting rod.

9. A powder processing equipment, characterized in that, The device includes a cylinder, a mounting frame, and a powder anti-sticking mechanism as described in any one of claims 1 to 8. The cylinder is disposed inside the mounting frame, the powder anti-sticking mechanism is disposed on the outside of the cylinder, one end of the powder anti-sticking mechanism is connected to the mounting frame, and the striking head is used to intermittently strike the cylinder.

10. The powder processing equipment as described in claim 9, characterized in that, It also includes a reinforcing plate disposed on the cylinder, and the striking head is used to strike the reinforcing plate.

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