An antistatic and dust removal device for battery pack end caps

Abstract

This application relates to an antistatic and dust removal device for battery pack end caps, belonging to the field of antistatic and dust removal technology. It includes a main body, a conveying mechanism, an antistatic mechanism, and a dust collection mechanism. The main body has a dust removal housing in the middle for the dust collection mechanism. The antistatic mechanism includes a first antistatic component and a second antistatic component disposed on both sides of the dust removal housing. The dust collection mechanism includes a straight air knife, a rotary air knife, and dust collection components located at the top and bottom of the main body. A dust removal and sweeping mechanism is disposed inside the dust removal housing between the first antistatic component and the rotary air knife. A pretreatment mechanism for cleaning static dust from the conveying mechanism is also provided on the main body. The dust removal and sweeping mechanism includes a dust removal frame, guide vanes, a first driving mechanism for moving the guide vanes, and auxiliary airflow nozzles. This application improves the dust removal and antistatic effect of battery pack end caps.

Description

Technical Field

[0001] This application relates to the field of static electricity removal and dust removal technology, and in particular to a static electricity removal and dust removal device for battery pack end caps. Background Technology

[0002] The battery pack end cap is made using a vacuum forming process, which is currently mainly used in the field of battery storage and protection for new energy vehicles that pursue lightweight design. The vacuum forming equipment uses heated plastic sheets to form the battery through vacuum adsorption, which has the advantages of low mold cost, fast production cycle and easy implementation of large thin-walled part design.

[0003] Currently, the bottom end caps of battery packs formed in one piece by vacuum forming equipment must undergo a series of rigorous post-processing steps before they can be used. First, a punching machine is used to remove excess flash around the edges and internal parts of the formed component. After this machining process, static electricity-adsorbed debris and dust often remain on the upper and lower surfaces of the product, requiring static electricity removal and dust removal treatment to reduce dust adhesion and its impact on the yield of subsequent processes. In actual production, static electricity removal and dust removal equipment is commonly used. The product to be processed enters the equipment via a conveyor belt, first undergoing initial static electricity neutralization through a first set of ion air bars. Then, a high-speed airflow thoroughly sweeps the upper and lower surfaces of the end cap, while a dust extraction device simultaneously removes the stirred-up dust. Finally, it undergoes secondary static electricity neutralization through a second set of ion air bars before being output.

[0004] However, the aforementioned electrostatic precipitator and dust removal equipment still has significant technical limitations when dealing with the bottom end caps of battery packs with specific structures. The end cap surface has multiple symmetrically distributed raised columnar structures along its length, forming deep trapezoidal grooves on both sides of the center. The airflow direction of the aforementioned equipment is always perpendicular to the end cap surface. The reflected vortices formed after the high-speed airflow impacts the inclined surface of the grooves repeatedly swirl up the already blown dust within the grooves, making it difficult to effectively remove. When the airflow departs, the dust re-settles, resulting in an actual dust removal effect in the groove area that is far lower than expected, leading to poor dust removal performance. Summary of the Invention

[0005] In order to improve the efficiency of dust removal and static electricity removal in the grooves on the battery pack end cap, this application provides a static electricity removal and dust removal device for the battery pack end cap.

[0006] The electrostatic discharge and dust removal device for battery pack end caps provided in this application adopts the following technical solution: An antistatic and dust removal device for battery pack end caps includes a main body, a conveying mechanism, an antistatic mechanism, and a dust collection mechanism. The main body has a dust collection housing in its middle for the dust collection mechanism. The antistatic mechanism includes a first antistatic component and a second antistatic component disposed on both sides of the dust collection housing. The dust collection mechanism includes a straight air-hole knife, a rotary air knife, and dust collection components located at the top and bottom of the main body. A dust removal and sweeping mechanism is disposed within the dust collection housing between the first antistatic component and the rotary air knife. The main body also includes a pretreatment mechanism for cleaning electrostatic dust from the conveying mechanism. The dust removal and sweeping mechanism includes a dust removal frame, a guide vane, a first drive mechanism for driving the guide vane to move, and an auxiliary airflow nozzle.

[0007] By adopting the above technical solution, the dust removal and sweeping mechanism and the pretreatment mechanism achieve dual cleaning of the grooved areas on the product surface and the conveyor belt itself. The dust removal and sweeping mechanism can intervene a second time to remove suspended dust in the grooves after the rotary air knife blows, improving the dust removal efficiency in the grooved areas; the pretreatment mechanism cleans the electrostatic dust on the conveyor belt, preventing it from causing secondary contamination to the already cleaned products. The two work together to construct a complete cleaning closed loop from the product to the conveyor belt, significantly improving the overall cleanliness.

[0008] Optionally, the dust removal frame is fixed to the main body of the equipment across the width of the conveying mechanism. The dust removal frame has two sets of dust removal sweeping mechanisms corresponding to the grooves of the product. The first driving mechanism drives the two sets of guide blades to move in a direction that is closer to or further away from each other.

[0009] By adopting the above technical solution, the first driving mechanism drives the two sets of guide vanes to move in a direction that is closer to or further away from each other, which can sweep horizontally from the outside of the groove to the inside. The horizontally sweeping guide vanes disrupt the vertical vortex in the groove and induce the horizontal airflow to carry the dust out of the groove, making it easier for subsequent dust collection.

[0010] Optionally, the auxiliary airflow nozzle is tilted and fixed to the top of the guide vane and located on the side of the guide vane away from the groove. The top of the guide vane is provided with multiple auxiliary through holes for the auxiliary airflow to pass through.

[0011] By adopting the above technical solution, the auxiliary airflow nozzle is tilted and fixed on the top of the guide vane and located on the side away from the groove. An auxiliary through hole is opened on the top of the guide vane, so that the airflow ejected from the nozzle can pass through the auxiliary through hole and reach the groove area in advance to establish a transverse airflow field. When the guide vane starts to move, the airflow ejected from the nozzle and the mechanical sweep of the guide vane are superimposed to form a stronger transverse thrust.

[0012] Optionally, the first drive mechanism includes a drive motor fixed to the dust removal frame, a transmission gear disposed at the output end of the drive motor, and transmission racks meshing with opposite sides of the transmission gear, wherein the two sets of transmission racks are respectively fixed to two sets of guide vanes.

[0013] By adopting the above technical solution, the mechanical synchronous movement of the two sets of drainage blades is realized. The response speed is fast and the synchronization accuracy is high. It can ensure that the left and right sets of drainage blades maintain symmetrical movement during the sweeping process. The structure is compact and highly reliable.

[0014] Optionally, the dust removal frame is further provided with a dust suction hood, which corresponds to the groove and is slidably mounted on the dust removal frame. The side wall of the dust suction hood is provided with a lifting slider, and the dust removal frame has a lifting slide rail that cooperates with the lifting slider. A transmission structure is provided between the dust suction hood and the drainage blades, and the lifting of the dust suction hood is realized through the transmission structure.

[0015] By adopting the above technical solution, the dust hood is installed by lifting and sliding through the lifting slider and slide rail, so that the dust hood can be lowered to a position close to the product surface when the guide blade is working, which greatly shortens the dust collection distance and improves the capture efficiency.

[0016] Optionally, the transmission structure includes a guide portion disposed on the top of the transmission rack, a movable portion disposed on the dust hood and corresponding to the guide portion, and a buffer elastic member. The movable portion includes a movable sleeve fixed to the dust hood and a movable column fixed to the movable sleeve. The guide section is provided with a guide slope for the movable column to abut against. One end of the buffer elastic element is fixed to the dust removal frame, and the other end is fixed to the movable sleeve. When the drainage blade moves, the movable column always abuts against the guide slope.

[0017] By adopting the above technical solution, the guide slope on the guide part always abuts against the moving part. With the help of the buffer elastic element, the transmission linkage between the dust hood and the guide blade is realized. The guide slope allows the dust hood to descend smoothly by gravity when the guide blade moves. The buffer elastic element provides an upward pulling force, controls the falling speed, and buffers the impact.

[0018] Optionally, the conveying mechanism includes a first conveyor belt group and a second conveyor belt group along the conveying direction. The first conveyor belt group and the second conveyor belt group each include at least three conveyor belts. The two conveyor belt groups are arranged alternately along the length of the equipment body and form a transition conveying area in the middle of the equipment body for the pretreatment mechanism to set up.

[0019] By adopting the above technical solution, the conveying mechanism uses a staggered arrangement of the first conveyor belt group and the second conveyor belt group, and forms a transition conveying area in the middle, so that the bottom of the end cover is alternately exposed by the gap between the belts during the conveying process. The area that was originally covered by the first conveyor belt group is exposed after transitioning to the second conveyor belt group, thus achieving full coverage of the bottom area.

[0020] Optionally, the pretreatment mechanism includes a pretreatment frame, a first cleaning unit and a second cleaning unit disposed on the pretreatment frame, wherein the first cleaning unit and the second cleaning unit are arranged mirror-symmetrically along the central axis of the transition conveying zone, and are used to clean the two sets of conveyor belts respectively.

[0021] By adopting the above technical solution, the pretreatment mechanism is equipped with a first cleaning unit and a second cleaning unit, which are arranged symmetrically in mirror image along the central axis of the transition conveyor zone, respectively corresponding to the two sets of conveyor belts with opposite directions of cleaning movement, so as to ensure the reverse brushing and reverse scraping effect.

[0022] Optionally, the first cleaning unit includes, in sequence, a rotating brush roller and an elastic scraper along the conveying direction of the conveyor belt assembly.

[0023] By adopting the above technical solution, a rotating brush roller and an elastic scraper are set in sequence to form a two-stage physical cleaning. The rotating brush roller rotates in the opposite direction to loosen the dust particles on the surface of the conveyor belt, and the elastic scraper then scrapes away stubborn residues at the opposite angle. The structure is simple and the effect is reliable.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The dust removal and sweeping mechanism can perform secondary intervention on the suspended dust in the groove after the rotary air knife blows, improving the dust removal efficiency in the groove area; the pretreatment mechanism cleans the electrostatic dust on the conveyor belt, reducing the contamination caused to the initially placed products and the products supported by the two sets of conveyor belts. 2. The airflow ejected from the auxiliary airflow nozzle can pass through the auxiliary through hole and reach the groove area in advance to establish a transverse airflow field. When the guide vane starts to move, the airflow ejected from the nozzle and the mechanical sweep of the guide vane are superimposed to form a stronger transverse thrust. 3. The dust hood is installed by lifting and sliding through a slider and a slide rail, allowing it to descend to a position close to the product surface when the guide vanes are working, which greatly shortens the dust collection distance and improves the dust capture efficiency. Attached Figure Description

[0025] Figure 1 This is a plan view of the battery pack end cap that needs to be processed in the embodiments of this application.

[0026] Figure 2 yes Figure 1 A cross-sectional schematic diagram of AA.

[0027] Figure 3 This is a schematic diagram of the overall structure of an embodiment of this application.

[0028] Figure 4 This is a schematic cross-sectional view of an embodiment of this application.

[0029] Figure 5 This is a schematic diagram of the conveying mechanism according to an embodiment of this application.

[0030] Figure 6 This is a schematic diagram of the dust removal and sweeping mechanism according to an embodiment of this application.

[0031] Figure 7 This is a schematic diagram of the structure of the first driving mechanism according to an embodiment of this application.

[0032] Figure 8 This is a schematic diagram of the transmission structure according to an embodiment of this application.

[0033] Figure 9 This is a schematic diagram of the preprocessing mechanism in an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Main body of the equipment; 11. Dust collector housing; 12. Dust collector curtain; 2. Conveying mechanism; 21. First conveyor belt group; 22. Second conveyor belt group; 23. Transition conveying zone; 24. Synchronous drive structure; 3. Static elimination mechanism; 31. First static elimination component; 32. Second static elimination component; 4. Dust collection mechanism; 41. Straight air hole knife; 42. Rotary air knife; 43. Dust collection component; 431. Dust collection guide housing; 432. Filter collection box; 433. Extraction fan; 5. Dust removal sweeping mechanism; 51. Dust removal frame; 511. Lifting slide rail; 52. Drainage blade; 52 1. Auxiliary through hole; 53. First drive mechanism; 531. Drive motor; 532. Transmission gear; 533. Transmission rack; 54. Auxiliary airflow nozzle; 55. Dust hood; 551. Lifting slider; 56. Transmission structure; 561. Guide part; 5611. Guide slope; 562. Movable part; 5621. Movable sleeve; 5622. Movable column; 563. Buffer elastic element; 6. Pre-treatment mechanism; 61. Pre-treatment frame; 62. First cleaning unit; 621. Rotating brush roller; 622. Elastic scraper; 63. Second cleaning unit; 7. Battery pack end cap; 71. Groove. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 3-9 This application will be described in further detail.

[0036] This application discloses an antistatic and dust removal device for battery pack end caps.

[0037] It should be noted that all directional indicators in this embodiment (such as up, down, left, right, front, back, inside, outside, width direction, length direction, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly. In this embodiment, the battery pack end cap 7 is the workpiece to be processed. The workpiece is conveyed along the length direction of the equipment. The width direction of the equipment is perpendicular to the conveying direction and is set horizontally. The vertical direction is the up-down direction of the equipment.

[0038] Reference Figure 3 and Figure 4 The static electricity removal and dust removal equipment includes the main body of the equipment 1, the conveying mechanism 2, the static electricity removal mechanism 3, the dust collection mechanism 4, the dust removal and sweeping mechanism 5, and the pretreatment mechanism 6.

[0039] The main body of the equipment 1 is a horizontally arranged rectangular box with an anti-static powder coating. A dust collection housing 11 is formed in the middle of the main body of the equipment 1. The dust collection mechanism 4 and the dust removal sweeping mechanism 5 are both integrated into the dust collection housing 11. Dust curtains are provided on both sides of the dust collection housing 11 to reduce the probability of dust overflow during the dust collection process. The bottom of the dust curtain and the top surface of the main body of the equipment 1 are respectively separated by a gap for the battery pack end cover 7 to move.

[0040] The static eliminator 3 includes a first static eliminator component 31 and a second static eliminator component 32. Both static eliminator components include static eliminator bars located on the upper and lower sides of the conveying mechanism 2, respectively. The first static eliminator component 31 is installed on the feed side of the dust collector housing 11, and the second static eliminator component 32 is installed on the discharge side of the dust collector housing 11. The first static eliminator component 31 is used to eliminate static electricity on the surface of the workpiece before the battery pack end cover 7 enters the dust collector housing 11, thereby reducing dust adsorption. The second static eliminator component 32 is used to eliminate residual static electricity on the surface of the workpiece again after the battery pack end cover 7 has completed dust removal.

[0041] The dust collection mechanism 4 includes a straight air-hole knife 41, a rotary air knife 42, and dust collection components 43 respectively fixedly installed on the top and bottom of the main body 1. The straight air-hole knife 41 and the rotary air knife 42 are arranged sequentially on the upper and lower sides of the conveying mechanism 2 along the conveying direction. In this embodiment, the straight air-hole knife 41 is a high-pressure multi-hole jet nozzle of the prior art, used for preliminary blowing and dust removal on the upper and lower planes of the battery pack end cover 7. The rotary air knife 42 includes a fixed air rod and multiple rotary air knives spaced apart on the fixed air rod, with the two nozzles of the rotary air knife always facing the battery pack end cover 7. The dust collection component 43 includes a dust collection guide housing 431 located on the upper and lower sides of the dust collection housing 11, a filter collection box 432, and two extraction fans 433. The upper dust collection guide housing 431 is connected to the filter collection box 432 through a pipe, so that the upper extraction fan 433 can transport the collected dust to the lower filter collection box 432.

[0042] The workpiece surface is swept by rotating jets, and the dust collection components 43 at the top and bottom simultaneously suck up and sweep away the dust that is blown up, forming a bidirectional dust collection flow field to improve dust recovery efficiency. Reference Figure 4 and Figure 5 The conveying mechanism 2 adopts a double-set staggered segmented conveying structure, which includes a first conveyor belt group 21 and a second conveyor belt group 22. The two conveying units are arranged sequentially along the length of the equipment, and form a staggered transition conveying zone 23 in the middle of the dust removal housing 11. Both conveying units use anti-static synchronous belts with smooth, wear-resistant surfaces and no dust shedding, which meets the dust-free cleaning requirements of the battery pack end cap 7.

[0043] The first conveyor belt group 21 includes at least two parallel conveyor belts; in this embodiment, there are five conveyor belt groups. The conveyor belts extend along the length of the equipment, with equal-width gaps reserved between adjacent conveyor belts. The second conveyor belt group 22 also includes at least two parallel narrow conveyor belts; in this embodiment, there are six second conveyor belt groups 22. The conveyor belts of the second conveyor belt group 22 are staggered with the conveyor belts of the first conveyor belt group 21, that is, the narrow conveyor belts of the first conveyor belt group 21 are correspondingly embedded in the gaps of the second conveyor belt group 22, and the narrow conveyor belts of the second conveyor belt group 22 are correspondingly embedded in the gaps of the first conveyor belt group 21. The conveying surfaces of the two conveyor units are at the same horizontal level, achieving seamless transition conveying of the battery pack end cap 7.

[0044] Both the first conveyor belt group 21 and the second conveyor belt group 22 adopt a synchronous drive structure 24, including a synchronous drive motor, a synchronous transmission shaft, a sprocket, and a chain, all fixedly installed at the bottom of the main body 1. A sprocket is installed at the output end of the synchronous drive motor, and the sprocket is connected to the synchronous rotating shaft via a chain. The synchronous transmission shaft fixes multiple conveyor belts, and the synchronous drive motor enables the synchronous movement of these belts. The linear speeds of the two conveyor belt groups are consistent. When the battery pack end cover 7 transitions from the first conveyor belt group 21 to the second conveyor belt group 22, only the bottom support surface changes, without any offset, jamming, or overturning, ensuring conveying stability.

[0045] Reference Figure 5 and Figure 6 The dust removal and sweeping mechanism 5 is a directional dust removal component for handling the groove 71 of the battery pack end cover 7. It includes a dust removal frame 51, a guide vane 52, a first drive mechanism 53, an auxiliary airflow nozzle 54, a dust suction hood 55, and a transmission structure 56. The dust removal and sweeping mechanism 5 is fixedly installed on the inner wall of the dust removal housing 11 across the width direction of the conveying mechanism 2, located between the first antistatic component 31 and the rotating air knife 42 at the top, and is used to handle stubborn dust in the groove 71 of the battery pack end cover 7.

[0046] The dust removal frame 51 is a portal frame structure, spanning the width of the conveying mechanism 2, and its left and right ends are fixedly connected to the main body 1 of the equipment by bolts. A channel for the battery pack end cover 7 to pass through is reserved between the bottom of the dust removal frame 51 and the conveying surface of the conveying mechanism 2, so as to reduce the probability of workpiece collision during conveying and dust removal. Two sets of guide vanes 52 are set on the dust removal frame 51 corresponding to the grooves 71 of the battery pack end cover 7. The two sets of guide vanes 52 are symmetrically arranged along the width of the equipment, corresponding one-to-one with the double groove structure 71 of the battery pack end cover 7.

[0047] The guide vane 52 is a vertically placed rectangular plate that slides horizontally on the side wall of the dust extraction frame 51. The guide vane 52 is made of anti-static hard plastic, and its bottom width is greater than the width of the groove 71 in the battery pack end cover 7. This ensures that the guide vane 52 always covers the entire cross-section of the groove 71 during horizontal sweeping, while the battery pack end cover 7 is also moving. A safety gap of 0.5 to 1 mm is maintained between the guide vane 52 and the opening of the groove 71, employing a non-contact horizontal sweeping method.

[0048] Reference Figure 6 and Figure 7 The first drive mechanism 53 drives two sets of guide vanes 52 to move simultaneously, either towards or away from each other, i.e., sweeping horizontally from the outside to the inside of the equipment, or vice versa. The first drive mechanism 53 includes a drive motor 531 fixed to the dust extraction frame 51, with a transmission gear 532 connected to the motor's output end. On opposite sides of the transmission gear 532, a transmission rack 533 meshes. The two transmission racks 533 are fixedly connected to the tops of the two sets of guide vanes 52. When the drive motor 531 operates, the transmission gear 532 rotates, driving the two meshing transmission racks 533 to move in opposite directions in a straight line, thereby achieving a synchronous sweeping motion of the two sets of guide vanes 52 either moving towards the center or separating to the sides.

[0049] To further improve the dust removal effect of the guide vanes 52 in the groove 71, auxiliary airflow nozzles 54 are installed on the top of each set of guide vanes 52. The auxiliary airflow nozzles 54 are obliquely fixed to the top of the guide vanes 52 by a bracket, and their installation position is on the side of the guide vanes 52 away from the groove 71, i.e., the rear outer side of the vane's initial position. The jet direction of the auxiliary airflow nozzles 54 is consistent with the moving direction of the guide vanes 52, both pointing towards the inside of the groove 71. Multiple auxiliary through holes 521 are provided on the top of the guide vanes 52 for the auxiliary airflow to pass through. When the nozzles start jetting in advance, the airflow can pass through the through holes on the top of the vanes and directly reach the groove 71 area, establishing a transverse airflow field in advance without being completely blocked by the vane body at the initial position. After the vanes begin to move, the continuously jetting airflow from the nozzles superimposed on the mechanical sweeping motion of the vanes forms a stronger transverse thrust, efficiently carrying the suspended dust blown up by the rotating air knife 42 out of the groove 71.

[0050] It should be noted that those skilled in the art can adapt different conveying speeds by adjusting the rotational speed of the drive motor 531 according to the actual production line cycle time. For example, the drive motor 531 can be configured as a servo motor to achieve matching between the sweeping speed and the conveying speed. Furthermore, since the bottom width of the guide vane 52 is greater than the width of the groove 71, even if the movement trajectory of the guide vane 52 is an oblique composite trajectory relative to the workpiece, its lateral projection range can still completely cover the lateral cross-section of the groove 71, thereby ensuring the sweeping effect on all areas within the groove 71.

[0051] Reference Figure 6 and Figure 8 To more effectively capture the dust brought out of the groove 71, a dust extraction hood 55 corresponding to the position of the groove 71 is also provided on the dust extraction frame 51. The dust extraction hood 55 is slidably mounted on the dust extraction frame 51. Specifically, a lifting slider 551 is fixed to the side wall of the dust extraction hood 55, and a vertical lifting rail 511 that cooperates with the lifting slider 551 is provided on the dust extraction frame 51 and the dust extraction component 43. The top of the dust extraction hood 55 is connected to the top dust extraction component 43 of the device body 1 via a flexible hose to ensure that the dust extraction pipeline remains unobstructed during lifting. The bottom opening of the dust extraction hood 55 faces the groove 71 area below.

[0052] A transmission structure 56 for linkage lifting is provided between the dust suction hood 55 and the guide vanes 52. The transmission structure 56 includes a guide portion 561 fixed to the transmission rack 533, a movable portion 562 disposed on the dust suction hood 55 and corresponding to the position of the guide portion 561, and a buffer elastic member 563. The guide portion 561 has an inclined guide slope 5611 machined on it, which gradually descends towards the middle of the equipment body 1. The movable portion 562 includes a movable sleeve 5621 fixed to the dust suction hood 55 and a movable column 5622 fixed to the end of the movable sleeve 5621. One end of the buffer elastic member 563 is fixed to the dust exhaust frame 51, and the other end is fixed to the movable sleeve 5621. A column for the buffer elastic member 563 to be fitted on is fixed on the dust exhaust frame 51, and the movable sleeve 5621 has an extension plate that presses against the top of the buffer elastic member 563.

[0053] The end of the movable column 5622 is a rolling slider that can move along the guide slope 5611; in other embodiments, it can be a roller. When the guide vane 52 is in the initial position, i.e., outside the groove 71, the dust hood 55 is in a high position under the support of the guide portion, away from the surface of the battery pack end cap 7, to avoid interfering with the entry of the product. When the first drive mechanism 53 drives the guide vane 52 to sweep inward, the transmission rack 533 fixed to the guide vane 52 moves accordingly, driving the guide portion 561 at its top to move synchronously. The guide slope 5611 and the rolling slider are always in contact, and the dust hood 55 falls automatically under the action of gravity, and the buffer elastic element 563 is gradually compressed. As an alternative implementation, an auxiliary pushing component, such as a miniature cylinder, can be added to the dust removal frame 51 to act together with gravity in the falling direction of the dust hood 55, so as to further accelerate the falling response speed and adapt to high-speed conveying conditions.

[0054] When the guide vane 52 moves directly above the groove 71 and begins its sweeping motion, the dust hood 55 descends to its lowest position, with its bottom opening only about 30 to 40 millimeters from the product surface, creating a highly efficient close-range suction negative pressure zone. When the guide vane 52 completes its sweeping motion and begins its reverse reset, the guide part 561 moves in the opposite direction, and the guide ramp 5611 guides the movable part 562 to gradually rise. The movable column 5622 remains in close contact with the guide ramp 5611, causing the dust hood 55 to rise smoothly.

[0055] Reference Figure 9 The pretreatment mechanism 6 is used to clean the dust and debris that the two sets of staggered conveyor belts pick up during the cycle operation. The pretreatment mechanism 6 is located in the transition conveyor zone 23.

[0056] The pretreatment mechanism 6 includes a pretreatment frame 61, a first cleaning unit 62, and a second cleaning unit 63. The first cleaning unit 62 is located on the return path of the first conveyor belt group 21, and the second cleaning unit 63 is located on the starting path of the second conveyor belt group 22. The two cleaning units have identical structures. The bottoms of the two conveyor belts move in opposite directions in the transition conveying zone 23. The two cleaning units adopt a mirror-symmetrical structural design to ensure that they match the movement direction of their respective conveyor belts. The main body of the equipment 1 has a first antistatic component 31 and a second antistatic component 32 at the inlet and outlet of the dust removal housing 11, respectively. Their effective range covers the entire width of the conveyor belt carrying section. Therefore, when the conveyor belt carrying products passes through these stations, the surface of the conveyor belt undergoes an antistatic neutralization treatment.

[0057] The first cleaning unit 62, along the return running direction of the first conveyor belt group 21, includes a rotating brush roller 621 and an elastic scraper 622. The rotating brush roller 621 is mounted on the lower frame of the main body 1 via a bearing housing, and its axis is parallel to the width direction of the conveyor belt. The surface of the rotating brush roller 621 is densely covered with anti-static nylon bristles, and the ends of the bristles elastically contact the surface of the conveyor belt. The rotating brush roller 621 does not require an independent drive motor, but rotates passively by friction with the conveyor belt.

[0058] An elastic scraper 622 is mounted on the main body 1 behind the first rotating brush roller 621. The elastic scraper 622 is made of flexible material with a blade-shaped lower edge. It is elastically attached to the conveyor belt surface under a certain pressure. The installation angle of the elastic scraper 622 is precisely set so that it forms a 30-45 degree angle with the direction of movement of the first conveyor belt assembly 21, effectively scraping away stubborn particles or sticky substances remaining after being loosened by the rotating brush roller 621. The structure of the second cleaning unit 63 is exactly the same as that of the first cleaning unit 62, with all directional components arranged in a mirror image.

[0059] The implementation principle of the electrostatic discharge and dust removal device for battery pack end caps in this application embodiment is as follows: The battery pack end cap 7 is carried by the first conveyor belt group 21 and moves towards the middle of the device. The conveyor belts are arranged in an alternating pattern, and a portion of the bottom area of ​​the battery pack end cap 7 is exposed to the gaps between the belts during the movement. The high-pressure airflow ejected from the nozzles of the rotating air knife 42 and the straight air hole knife 41 dynamically sweeps and blows the upper and lower surfaces of the battery pack end cap 7, raising the dust and debris remaining after cutting and punching.

[0060] When the groove 71 of the battery pack end cap 7 passes the rotating air knife 42, the dust removal sweeping mechanism 5 starts to work. The first drive mechanism 53 drives the guide blade 52 to sweep horizontally from the outside to the inside. The auxiliary airflow nozzle 54 is activated in advance, and the inclined airflow blows towards the groove 71 to establish a horizontal airflow field. While the guide blade 52 moves, the dust collection hood 55 linked with it descends smoothly with the cooperation of the guide slope 5611 and the buffer elastic element 563. Finally, when the guide blade 52 sweeps horizontally to the top of the groove 71, a close-range strong negative pressure zone is formed. The dust swept out by the guide blade 52 is instantly captured and sucked into the top dust collection component 43.

[0061] The battery pack end cap 7 continues forward to the transition conveyor zone 23, smoothly transitioning to the second conveyor belt group 22. The bottom area, previously covered by the first group, is now exposed and begins to be cleaned by the bottom vacuuming mechanism 4. Throughout the process, the first cleaning unit 62 and the second cleaning unit 63, located on the conveyor belt return path, respectively perform reverse brushing and scraping on the two conveyor belt groups. Finally, after being neutralized by the second antistatic component 32, the battery pack end cap 7 exits the device in a clean state.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An antistatic and dust removal device for battery pack end caps, comprising a device body (1), a conveying mechanism (2), an antistatic mechanism (3), and a dust collection mechanism (4), wherein the device body (1) has a dust removal housing (11) in the middle for the dust collection mechanism (4), and the antistatic mechanism (3) comprises a first antistatic component (31) and a second antistatic component (32) disposed on both sides of the dust removal housing (11), characterized in that, The dust collection mechanism (4) includes a straight air hole knife (41), a rotary air knife (42), and dust collection components (43) located at the top and bottom of the main body of the equipment (1), respectively. A dust removal sweeping mechanism (5) is provided in the dust removal housing (11) between the first antistatic component (31) and the rotary air knife (42), and a pretreatment mechanism (6) for cleaning electrostatic dust on the conveying mechanism (2) is provided on the main body of the equipment (1). The dust removal sweeping mechanism (5) includes a dust removal frame (51), a guide vane (52), a first drive mechanism (53) for driving the guide vane (52) to move, and an auxiliary airflow nozzle (54).

2. The electrostatic discharge and dust removal device for battery pack end caps according to claim 1, characterized in that, The dust removal frame (51) is fixed to the main body (1) across the width of the conveying mechanism (2). The dust removal frame (51) has two sets of dust removal sweeping mechanisms (5) corresponding to the grooves (71) of the product. The first driving mechanism (53) drives the two sets of guide blades (52) to move toward each other or away from each other.

3. The electrostatic discharge and dust removal device for battery pack end caps according to claim 2, characterized in that, The auxiliary airflow nozzle (54) is fixed at an angle to the top of the guide vane (52) and is located on the side of the guide vane (52) away from the groove (71). The top of the guide vane (52) is provided with a plurality of auxiliary through holes (521) for the auxiliary airflow to pass through.

4. The electrostatic discharge and dust removal device for battery pack end caps according to claim 2, characterized in that, The first drive mechanism (53) includes a drive motor (531) fixed to the dust removal frame (51), a transmission gear (532) disposed at the output end of the drive motor (531), and transmission racks (533) meshing with opposite sides of the transmission gear (532). The two sets of transmission racks (533) are respectively fixed to two sets of guide vanes (52).

5. The electrostatic discharge and dust removal device for battery pack end caps according to claim 4, characterized in that, The dust removal frame (51) is also provided with a dust suction hood (55), which corresponds to the groove (71) and is installed on the dust removal frame (51) in a lifting and sliding manner. The side wall of the dust suction hood (55) is provided with a lifting slider (551), and the dust removal frame (51) has a lifting slide rail (511) that slides and cooperates with the lifting slider (551). A transmission structure (56) is provided between the dust suction hood (55) and the drainage blade (52), and the lifting and lowering of the dust suction hood (55) is realized through the transmission structure (56).

6. The electrostatic discharge and dust removal device for battery pack end caps according to claim 5, characterized in that, The transmission structure (56) includes a guide portion (561) disposed on the top of the transmission rack (533), a movable portion (562) disposed on the dust cover (55) and corresponding to the guide portion (561), and a buffer elastic member (563). The movable portion (562) includes a movable sleeve (5621) fixed to the dust cover (55) and a movable column (5622) fixed to the movable sleeve (5621). The guide section (561) is provided with a guide slope (5611) for the movable column (5622) to abut against. One end of the buffer elastic element (563) is fixed to the dust removal frame (51), and the other end is fixed to the movable sleeve (5621). When the drainage blade (52) moves, the movable column (5622) always abuts against the guide slope (5611).

7. The electrostatic discharge and dust removal device for battery pack end caps according to claim 1, characterized in that, The conveying mechanism (2) includes a first conveyor belt group (21) and a second conveyor belt group (22) along the conveying direction. The first conveyor belt group (21) and the second conveyor belt group (22) each include at least three conveyor belts. The two conveyor belt groups are arranged alternately along the length of the equipment body (1) and form a transition conveying area (23) in the middle of the equipment body (1) for the pretreatment mechanism (6) to set up.

8. The electrostatic discharge and dust removal device for battery pack end caps according to claim 7, characterized in that, The pretreatment mechanism (6) includes a pretreatment frame (61), a first cleaning unit (62) and a second cleaning unit (63) disposed on the pretreatment frame (61). The first cleaning unit (62) and the second cleaning unit (63) are arranged symmetrically in mirror image along the central axis of the transition conveying area (23) for cleaning the two sets of conveyor belts respectively.

9. The electrostatic discharge and dust removal device for battery pack end caps according to claim 8, characterized in that, The first cleaning unit (62) includes a rotating brush roller (621) and an elastic scraper (622) in sequence along the conveying direction of the conveying mechanism (2).

Images