Lithium battery packaging tray cleaning equipment

Abstract

The present invention discloses a lithium battery packaging pallet cleaning device, the cleaning device comprises a lifting mechanism, a caching mechanism, a stratification mechanism, a cleaning mechanism and a stacking mechanism; the lifting mechanism comprises a mounting bracket and two roller conveyor lines, the two roller conveyor lines are respectively mounted on a supporting frame, the supporting frame is slidably connected to the mounting bracket in a vertical direction, a gap is left between the two roller conveyor lines and they are located in the same horizontal plane, the pallet is lifted by the lifting mechanism, the caching mechanism performs temporary storage, the stratification mechanism grabs the pallet one by one, the cleaning mechanism performs automatic cleaning, and the stacking mechanism stacks the pallet layer by layer, and the automatic operation of pallet cleaning is realized through the arrangement of each mechanism, the temporary storage mechanism cooperates with the stratification mechanism, and can convey the temporarily stored stacked pallets to the cleaning mechanism one by one for cleaning one by one, which is suitable for batch cleaning of pallets, greatly improves the operation efficiency, reduces a large number of operators, and reduces labor costs.

Description

Technical Field

[0001] The invention relates to the field of pallet cleaning, and in particular to a lithium battery packaging pallet cleaning device. Background Art

[0002] New energy vehicles are becoming more and more popular. At present, the power batteries of new energy vehicles on the market are mainly lithium-ion batteries. In the production process of lithium-ion batteries, soft-pack battery transportation is a necessary process from pre-formation to sorting. Existing soft-pack batteries need to be packaged, and the packaged batteries have sealed edges around them. After packaging, the soft-pack batteries are placed in a tray for easy transportation and use.

[0003] After the automotive power soft-pack batteries are shipped out of the factory and placed on pallets after the DSF (double folding equipment), if there are foreign objects and dust in the pallets, it will contaminate the batteries. Even granular foreign objects will cause indentations on the surface of the batteries, causing the batteries received by customers to be defective.

[0004] Therefore, the lithium battery packaging tray needs to be cleaned during use, and its cleaning method has the following disadvantages

[0005] 1. The existing method of handling foreign matter in empty pallets is simple manual operation. Operators use air guns, cleaning cloths, alcohol and other tools to clean the pallets. Due to the large size of the pallets (1090*990mm), it usually takes 2 to 3 people to work on the same pallet at the same time, which is labor-intensive and consumes a lot of labor costs;

[0006] 2. The existing technology does not collect and process the foreign matter blown off the pallet, and the dust returns to the air again, causing secondary pollution to the production environment;

[0007] 3. There are still foreign objects on the surface of the tray that are adsorbed by static electricity, but it is difficult to eliminate static electricity through manual cleaning, and new static electricity may be generated. At the same time, due to manual work, omissions may occur during long-term continuous cleaning, resulting in foreign objects still remaining on the tray. Therefore, the cleanliness of the tray cannot be guaranteed by traditional cleaning methods. Summary of the invention

[0008] In order to solve the above problems, the present invention discloses a lithium battery packaging tray cleaning device.

[0009] In order to achieve the above objectives, the present invention provides the following technical solutions: a lithium battery packaging tray cleaning device, the cleaning device comprising a lifting mechanism, a buffering mechanism, a layering mechanism, a cleaning mechanism and a stacking mechanism;

[0010] The lifting mechanism includes a mounting bracket and two roller conveyor lines, the two roller conveyor lines are respectively mounted on a support frame, the support frame is slidably connected to the mounting bracket along the vertical direction, a gap is left between the two roller conveyor lines and they are located in the same horizontal plane, and the mounting bracket is driven by a lifting cylinder to move in the vertical direction;

[0011] The cache mechanism includes a first roller conveyor and a second roller conveyor connected to the first roller conveyor;

[0012] The stratification mechanism includes a third roller conveyor, an X-axis linear drive mechanism, a Z-axis linear drive mechanism and a first suction cup assembly, wherein the third roller conveyor is connected to the second roller conveyor, the X-axis linear drive mechanism is horizontally arranged along the conveying direction of the third roller conveyor, the Z-axis linear drive mechanism is arranged perpendicular to the X-axis linear drive mechanism, and is driven by the X-axis linear drive mechanism to make reciprocating linear motion in the horizontal direction, the first suction cup assembly is transmission-connected to the Z-axis linear drive mechanism, and is driven by the Z-axis linear drive mechanism to make reciprocating linear motion in the vertical direction;

[0013] The cleaning mechanism comprises a cabin, a fourth roller conveyor, a cleaning component and a foreign matter recovery component, the cabin having an inlet end and an outlet end, the fourth roller conveyor, the cleaning component and the foreign matter recovery component are all arranged in the cabin, one end of the fourth roller conveyor extends out of the outlet end of the cabin, and the other end thereof is connected to the third roller conveyor, the cleaning component comprises an upper purge component and a lower purge component, the upper purge component and the lower purge component both comprise a plurality of air knives, the plurality of air knives of the lower purge component are arranged at intervals in the horizontal direction in the gap between two adjacent rollers of the fourth roller conveyor, the air outlets of the plurality of air knives of the lower purge component are arranged to be tilted upward, the plurality of air knives of the upper purge component are correspondingly arranged above the lower purge component, and the air outlets of the plurality of air knives of the upper purge component are arranged to be tilted downward;

[0014] The foreign matter recovery assembly includes an upper air scoop covered above the upper purge assembly and a lower air scoop covered below the lower purge assembly, and the outlet ends of the upper air scoop and the lower air scoop are both connected to an exhaust device;

[0015] The stacking mechanism includes a detection component and a stacking component, the detection component includes a photoelectric detection switch, and the detection end of the photoelectric detection switch is arranged toward the outlet end of the cabin; the stacking component includes a manipulator component and a second suction cup component, the manipulator component is arranged close to the outlet end of the cleaning mechanism, and is driven by the manipulator component to move in horizontal and vertical directions, the photoelectric detection switch is electrically connected to a controller, and the manipulator component is controlled by the controller.

[0016] As an improvement of the present invention, the multiple wind knives of the upper purge assembly and the multiple wind knives of the lower purge assembly are alternately arranged in the horizontal direction, and the multiple wind knives of the upper purge assembly and the lower purge assembly also include two anti-static wind knives, and the two anti-static wind knives are respectively arranged corresponding to the inlet and outlet ends of the cabin body, and the anti-static wind knife includes a wind knife and an ion wind rod abutting against the wind knife.

[0017] As an improvement of the present invention, a limiting assembly is provided on the rollers of the first roller conveyor, the second roller conveyor, the third roller conveyor and the fourth roller conveyor, and the limiting assembly includes two roller sleeves respectively mounted on the two ends of the roller, and a circle of ribs is provided on the roller sleeve along its circumference, and the ribs of the two roller sleeves are arranged opposite to each other, thereby forming a limiting area between the ribs of the two roller sleeves.

[0018] As an improvement of the present invention, the stacking mechanism also includes a pallet placement station, and the stacking mechanism is also provided with a pallet layer height detection component, and the pallet layer height detection component includes a lower layer opposing photoelectric detection sensor and an upper layer opposing photoelectric detection sensor, the lower layer opposing photoelectric detection sensor and the pallet placement station are located in the same plane, and the upper layer opposing photoelectric detection sensor is correspondingly arranged directly above the lower layer opposing photoelectric detection sensor, and the signal output ends of the lower layer opposing photoelectric detection sensor and the upper layer opposing photoelectric detection sensor are electrically connected to the controller.

[0019] As an improvement of the present invention, a brush is fixed in the gap between two adjacent rollers of the first roller conveyor, the second roller conveyor, the third roller conveyor and the fourth roller conveyor. The brush is in the shape of an elongated strip and is arranged parallel to the rollers of the roller conveyor.

[0020] As an improvement of the present invention, the tray is rectangular, the first suction cup assembly and the second suction cup assembly each include a plurality of vacuum suction cups, the plurality of vacuum suction cups are arranged in a rectangular shape, and each of the vacuum suction cups is connected to a vacuum generator via a pipe.

[0021] As an improvement of the present invention, the brush is a conductive PA brush, and the bristles of the brush protrude from the plane where the roller of the conveyor is located.

[0022] As an improvement of the present invention, the cleaning mechanism also includes a roller brush cleaning assembly, which includes an upper roller brush and a lower roller brush, the lower roller brush is arranged between the two roller conveyors, and the upper roller brush is located above the lower roller brush, and the upper roller brush and the lower roller brush each include a telescopic drive mechanism and a roller brush, the roller brush is connected to the telescopic end of the telescopic drive mechanism, and is driven by the telescopic drive mechanism to move in a vertical direction, and the roller brush is driven to rotate by a rotation drive mechanism.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. The cleaning device of the present invention comprises a lifting mechanism, a buffer mechanism, a layering mechanism, a cleaning mechanism and a stacking mechanism. During cleaning, the lifting mechanism lifts the tray, the buffer mechanism temporarily stores the tray, the layering mechanism grabs the tray one by one, the cleaning mechanism automatically cleans the tray, and the stacking mechanism stacks the trays layer by layer. The automatic operation of tray cleaning is realized by the arrangement of each mechanism. The temporary storage mechanism cooperates with the layering mechanism to transport the temporarily stored stacked trays one by one to the cleaning mechanism for cleaning one by one. It is suitable for batch cleaning of trays, greatly improves the operation efficiency, reduces a large number of operators, and reduces labor costs.

[0025] 2. A foreign matter recovery component is provided, and the floating dust generated during the cleaning process of the pallet can be collected centrally through the upper and lower air scoops in the foreign matter recovery component. At the same time, the conveying mechanism, cleaning component and foreign matter recovery component are all arranged in the cabin, which can further reduce the spread of dust, and no secondary pollution will be generated during the cleaning process, which is more environmentally friendly;

[0026] 3. The inlet and outlet ends of the cleaning mechanism cabin are respectively equipped with anti-static wind knife assemblies, which can neutralize static electricity and effectively remove foreign matter adsorbed by static electricity. In particular, the outlet end is also equipped with an anti-static wind knife assembly to remove static adsorption that may be generated during the cleaning process. Multiple wind knives are alternately arranged at intervals, and no turbulence is generated when blowing away dust, and the cleaning effect is better. At the same time, the gap between the rollers in the roller conveying mechanism is utilized to set wind knives in the gap, and the bottom of the tray can be cleaned at the same time. Compared with the traditional cleaning to the top of the tray, the cleaning range of this cleaning mechanism is larger; in addition, a roller brush cleaning mechanism is also provided, which is combined with the knife assembly to remove foreign matter with strong adhesion. At the same time, the lifting height of the roller brush cleaning mechanism is adjustable, and its contact distance with the tray is adjustable. The combination of the two cleaning mechanisms further improves its overall cleaning ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a top view of the lifting mechanism of the present invention;

[0029] Figure 3 It is a right side view of the lifting mechanism of the present invention;

[0030] Figure 4 It is a schematic diagram of the hierarchical structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the connection relationship between the stratification mechanism and the cleaning mechanism of the present invention;

[0032] Figure 6 It is a schematic diagram of the structure of the foreign matter recovery component of the present invention;

[0033] Figure 7 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0034] Figure 8 It is a schematic diagram of the connection relationship between the cleaning mechanism and the stacking mechanism of the present invention.

[0035] List of reference numerals: 1-lifting mechanism; 11-mounting bracket; 12-roller conveyor line; 13-support frame; 2-caching mechanism; 21-first roller conveyor; 22-second roller conveyor; 3-layering mechanism; 31-third roller conveyor; 32-X-axis linear drive mechanism; 33-Z-axis linear drive mechanism; 34-first suction cup assembly; 4-cleaning mechanism; 41-cabin; 42-fourth roller conveyor; 431-upper layer purge assembly; 432-lower layer purge assembly; 441-upper air scoop; 442-lower air scoop; 45-roller brush cleaning assembly; 5-stacking mechanism; 51-manipulator assembly; 52-second suction cup assembly; 53-pallet placement station; 54-pallet layer height detection assembly. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] Example: See Figure 1-8 , a lithium battery packaging tray cleaning device, the cleaning device comprises a lifting mechanism 1, a buffer mechanism 2, a layering mechanism 3, a cleaning mechanism 4 and a stacking mechanism 5;

[0041] The lifting mechanism 1 includes a mounting bracket 11 and two roller conveyor lines 12. The two roller conveyor lines 12 are respectively installed on a support frame 13. The support frame 13 is slidably connected to the mounting bracket 11 in the vertical direction. Specifically, the support frame 13 and the mounting bracket 11 are connected through a guide rod slider mechanism. The guide rod of the guide rod slider mechanism is vertically fixed on the mounting bracket 11. The slider of the guide rod slider mechanism is connected to the support frame 13 through bolts, thereby forming a sliding connection between the support frame 13 and the mounting bracket 12. Multiple guide rod slider mechanisms can be arranged along the length direction of the support frame 13, so that the support frame 13 is more stable when rising and falling; a gap is left between the two roller conveyor lines 12 and they are located in the same horizontal plane. The mounting bracket 11 is driven to move in the vertical direction by a lifting cylinder 14;

[0042] The roller conveyor line 12 includes a plurality of rollers arranged in parallel in the horizontal direction. The plurality of rollers are installed on a support frame 13 through bearings. A chain is driven between two adjacent rollers. The rollers are also connected to a driving motor through a chain drive. The driving motor is fixedly installed on the support frame 13 by bolts and moves synchronously with the support frame 13. The driving motor adopts a 180W reduction motor, and the rollers are single-sided double-row sprockets. The transmission connection structure between adjacent rollers is the same as that of the existing roller conveyor line mechanism, but the length of the rollers is shortened.

[0043] The buffer mechanism 2 includes a first roller conveyor 21 and a second roller conveyor 22 connected to the first roller conveyor 21;

[0044] The stratification mechanism 3 includes a third roller conveyor 31, an X-axis linear drive mechanism 32, a Z-axis linear drive mechanism 33 and a first suction cup assembly 34. The third roller conveyor 31 is connected to the second roller conveyor 22. The X-axis linear drive mechanism 32 is horizontally arranged along the conveying direction of the third roller conveyor 31. The Z-axis linear drive mechanism 33 is arranged perpendicular to the X-axis linear drive mechanism 32 and is driven by the X-axis linear drive mechanism 32 to make reciprocating linear motion in the horizontal direction. The first suction cup assembly 34 is connected to the Z-axis linear drive mechanism 33 in transmission connection and is driven by the Z-axis linear drive mechanism 33 to make reciprocating linear motion in the vertical direction. The X-axis linear drive mechanism 32 and the Z-axis linear drive mechanism 33 are connected to each other in transmission connection. The first suction cup assembly 34 can be driven to move in the horizontal and vertical directions through the combination of the X-axis linear drive mechanism 32 and the Z-axis linear drive mechanism 33; the tray is rectangular, the first suction cup assembly 34 and the second suction cup assembly 52 each include a plurality of vacuum suction cups, the plurality of vacuum suction cups are arranged in a rectangular shape and fixedly mounted on a rectangular frame, each vacuum suction cup is connected to a vacuum generator through a pipeline, a proximity switch is mounted on the rectangular frame, the proximity switch and the vacuum suction cup are in the same plane, the signal output end of the proximity switch is electrically connected to the vacuum generator, when the proximity switch contacts the tray, the vacuum generator can be triggered to work, thereby the tray is adsorbed by the vacuum suction cup;

[0045] The cleaning mechanism 4 includes a cabin 41, a fourth roller conveyor 42, a cleaning component and a foreign matter recovery component. The cabin 41 has an inlet end and an outlet end. The fourth roller conveyor 42, the cleaning component and the foreign matter recovery component are all arranged in the cabin 41. One end of the fourth roller conveyor 42 extends out of the outlet end of the cabin 41, and the other end thereof is connected to the third roller conveyor 31. The cleaning component includes an upper purge component 431 and a lower purge component 432. The upper purge component 431 and the lower purge component 432 both include a plurality of air knives. The plurality of air knives of the lower purge component 432 are arranged in a gap between two adjacent rollers of the fourth roller conveyor 42 at intervals in the horizontal direction. The air outlets of the plurality of air knives of the lower purge component 432 are arranged to be tilted upward. The plurality of air knives of the upper purge component 431 are correspondingly arranged above the lower purge component 432. The air outlets of the plurality of air knives of the upper purge component 431 are arranged to be tilted downward.

[0046] The wind knife is a mechanism driven by a vortex fan or a high-pressure centrifugal fan (instead of high-energy compressed air). After the compressed air enters the wind knife, it is blown out at high speed in the form of an airflow sheet with a thickness of only 0.05 mm. Through the Coanda effect principle and the special geometric shape of the wind knife, this thin sheet wind curtain can be up to 30 to 40 times the ambient air, forming a thin high-intensity, large airflow impact wind curtain; the wind knife is divided into two types of standard wind knife and super wind knife in terms of working mode. The wind curtain of the standard wind knife is blown out after deflecting 90 degrees, and the wind curtain of the super wind knife is blown out horizontally; the wind knife in this embodiment adopts a super wind knife; upper and lower layers of wind knives are set to blow and clean the top and bottom surfaces of the pallets passing through the fourth roller conveyor 42;

[0047] The multiple wind knives of the upper purge assembly 431 and the multiple wind knives of the lower purge assembly 432 are alternately arranged in the horizontal direction. The multiple wind knives of the upper purge assembly 431 and the lower purge assembly 432 also include two anti-static wind knives, which are respectively arranged corresponding to the inlet end and the outlet end of the cabin 41. The anti-static wind knife includes a wind knife and an ion wind rod abutting against the wind knife. The ion wind rod is a special equipment for fixed static elimination, which can generate a large number of air masses with positive and negative charges, and can neutralize the charges carried by objects passing through its ion radiation zone. When the surface of the object is negatively charged, it will attract the positive charges in the radiation zone. When the surface of the object is positively charged, it will attract the negative charges in the radiation zone, so that the static electricity on the surface of the object is neutralized, and the purpose of eliminating static electricity is achieved. In this embodiment, the air masses with positive and negative charges generated by the ion wind rod of the anti-static wind knife are blown to the tray by the airflow generated by the wind knife, and the foreign objects adsorbed by static electricity on the tray are cleaned;

[0048] The foreign body recovery component includes an upper scoop 441 which is covered above the upper purge component 431 and a lower scoop 442 which is covered below the lower purge component 432. The outlet ends of the upper scoop 441 and the lower scoop 442 are both connected to exhaust devices; the upper scoop 441 and the lower scoop 442 are both trumpet-shaped structures, and are provided with a plurality of upper scoops 441 which are respectively covered above the upper purge component, and the edges of the upper scoop 441 are sealed with the inner wall of the cabin 41 by welding connection, and the plurality of lower scoops 442 are respectively covered at Below the lower purge assembly, the edges of the lower scoop 442 are sealed and connected to the inner wall of the cabin 41, and the inlet ends of the upper scoop 441 and the lower scoop 442 are connected to an exhaust device, which can be an industrial vacuum cleaner, and the suction pipe of the industrial vacuum cleaner is connected to the inlet ends of the upper scoop 441 and the lower scoop 442; when the cleaning assembly cleans the tray, the dust adsorbed on the tray floats in the cabin 41 after leaving the tray, and foreign matter is sucked and collected by the upper scoop 441 and multiple lower scoops 442 respectively, to prevent the spread of foreign matter and cause secondary pollution;

[0049] The stacking mechanism 5 includes a detection component and a stacking component. The detection component includes a photoelectric detection switch. The detection end of the photoelectric detection switch is arranged toward the outlet end of the cabin 41; the stacking component includes a manipulator component 51 and a second suction cup component 52. The manipulator component 51 is arranged near the outlet end of the cleaning mechanism 4 and is driven by the manipulator component 51 to move in the horizontal and vertical directions. The photoelectric detection switch is electrically connected to a controller, and the manipulator component 51 is controlled by the controller; specifically, the manipulator component 51 adopts the same setting as the X-axis linear drive mechanism 32 and the Z-axis linear drive mechanism 33 of the layering mechanism 3, the X-axis linear drive mechanism 32 is arranged horizontally, the Z-axis linear drive mechanism 33 is transmission-connected to the X-axis linear drive mechanism 32, and is arranged vertically, and the second suction cup component 52 is transmission-connected to the Z-axis linear drive mechanism 33; the controller adopts a PLC controller, the signal output end of the photoelectric detection switch is connected to the signal input end of the PLC controller, and the control end of the PLC controller is connected to the X-axis linear drive mechanism 32 and the Z-axis linear drive mechanism 33;

[0050] A limiting assembly is provided on the rollers of the first roller conveyor 21, the second roller conveyor 22, the third roller conveyor 31 and the fourth roller conveyor 42. The limiting assembly includes two roller sleeves 421 respectively sleeved on both ends of the roller. A circle of ribs is provided on the roller sleeve 421 along its circumference. The ribs of the two roller sleeves 421 are arranged opposite to each other, thereby forming a limiting area between the ribs of the two roller sleeves 421. When conveying a pallet to be cleaned, the ribs of the two roller sleeves 421 are located correspondingly on the side of the pallet, thereby limiting the pallet to prevent the pallet from shifting during the conveying process and affecting subsequent cleaning.

[0051] The stacking mechanism 5 also includes a pallet placement station 53. The stacking mechanism 5 is also provided with a pallet layer height detection component 54. The pallet layer height detection component 54 includes a lower layer photoelectric detection sensor and an upper layer photoelectric detection sensor. The lower layer photoelectric detection sensor and the pallet placement station 53 are located in the same plane. The upper layer photoelectric detection sensor is correspondingly arranged directly above the lower layer photoelectric detection sensor. The signal output ends of the lower layer photoelectric detection sensor and the upper layer photoelectric detection sensor are electrically connected to the controller. The lower layer photoelectric detection sensor and the upper layer photoelectric detection sensor can both emit a group of incident light rays. When the group of incident light rays is blocked by the pallet, the sensor sends an electrical signal to the controller, indicating that there is a pallet there. The upper layer photoelectric detection sensor is used to detect whether a pallet has arrived at this position, thereby judging whether it is too high.

[0052] The specific working process is as follows: first, the pallets are stacked layer by layer on a rectangular pallet, the pallet is lifted by a forklift and transported to the lifting mechanism 1 and placed on two roller conveyor lines 12, the lifting cylinder 14 lifts the pallet carrying the pallet to the height of the first roller conveyor 21, and then the roller conveyor line 12 conveys the pallet toward the first roller conveyor 21, completing the lifting and transfer of the pallet;

[0053] The buffer mechanism 2 includes a first roller conveyor 21 and a second roller conveyor 22 connected to the first roller conveyor 21; the first roller conveyor 21 transfers the pallet to the second roller conveyor 22, thereby forming an empty space on the first roller conveyor 21, and the first roller conveyor 21 can continue to receive the next pallet carrying the pallet transmitted from the lifting mechanism 1, temporarily store the pallet, and after the pallet on the second roller conveyor 22 is layered and captured by the layering mechanism 3, the first roller conveyor 21 then transfers the stored pallet to the second roller conveyor 22, thereby completing the relay and improving the pallet transportation efficiency;

[0054] When the stratification mechanism 3 grabs the pallet, the X-axis linear drive mechanism 32 drives the Z-axis linear drive mechanism 33 to drive the first suction cup assembly 34 to move horizontally to above the pallet of the second roller conveyor 22, and then the Z-axis linear drive mechanism 33 drives the first suction cup assembly 34 to descend to grab the stacked pallets on the pallet, and after grabbing, the pallets are placed on the third roller conveyor 31 through the X-axis linear drive mechanism 32 and the Z-axis linear drive mechanism 33, so as to realize the stratification of the pallets on the pallet;

[0055] The trays layered by the layering mechanism 3 are conveyed by the third roller conveyor 31 to the fourth roller conveyor 42 of the cleaning mechanism 4, and the top and bottom surfaces of the trays passing through the fourth roller conveyor 42 are cleaned by the upper and lower wind knives provided in the cleaning mechanism 4;

[0056] After the cleaning mechanism 4 finishes cleaning the pallets, the fourth roller conveyor 42 conveys the pallets to the outside of the cabin 41 , and the manipulator assembly 51 in the stacking mechanism 5 grabs the pallets on the fourth roller conveyor 42 one by one and stacks the pallets together again.

[0057] A brush is fixed in the gap between two adjacent rollers of the first roller conveyor 21, the second roller conveyor 22, the third roller conveyor 31 and the fourth roller conveyor 42. The brush is in the shape of an elongated strip and is arranged parallel to the rollers of the roller conveyor. The brush is a conductive PA brush. The bristles of the brush protrude from the plane where the rollers of the conveyor are located. During the conveying process, the pallet passes through the brush, and the larger foreign matter at the bottom of the pallet can be preliminarily cleaned, which effectively prevents the foreign matter at the bottom of the pallet from being contaminated on the entire roller conveyor. The use of anti-static material can prevent the brush from generating static electricity during cleaning, causing new static electricity adsorption.

[0058] The cleaning mechanism 4 also includes a roller brush cleaning assembly 45, which includes an upper roller brush and a lower roller brush. The lower roller brush is arranged between two roller conveyors, and the upper roller brush is located above the lower roller brush. The upper roller brush and the lower roller brush both include a telescopic drive mechanism and a roller brush. The roller brush is connected to the telescopic end of the telescopic drive mechanism and is driven by the telescopic drive mechanism to move in a vertical direction. The roller brush is driven to rotate by a rotating drive mechanism. The roller brush includes a rotating shaft and bristles bonded to the outer wall of the rotating shaft. The rotating shaft is connected to the drive shaft of a reduction motor through a coupling, and is driven to rotate by the reduction motor, so as to further clean foreign objects that are difficult to blow away and adhere to the tray.

[0059] The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above-mentioned technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications are also regarded as the protection scope of the present invention.

Claims

1. A lithium battery packaging tray cleaning device, characterized in that: The cleaning device includes a lifting mechanism, a buffering mechanism, a layering mechanism, a cleaning mechanism and a stacking mechanism; The lifting mechanism includes a mounting bracket and two roller conveyor lines, the two roller conveyor lines are respectively mounted on a support frame, the support frame is slidably connected to the mounting bracket along the vertical direction, a gap is left between the two roller conveyor lines and they are located in the same horizontal plane, and the mounting bracket is driven by a lifting cylinder to move in the vertical direction; The cache mechanism includes a first roller conveyor and a second roller conveyor connected to the first roller conveyor; The stratification mechanism includes a third roller conveyor, an X-axis linear drive mechanism, a Z-axis linear drive mechanism and a first suction cup assembly, wherein the third roller conveyor is connected to the second roller conveyor, the X-axis linear drive mechanism is horizontally arranged along the conveying direction of the third roller conveyor, the Z-axis linear drive mechanism is arranged perpendicular to the X-axis linear drive mechanism, and is driven by the X-axis linear drive mechanism to make reciprocating linear motion in the horizontal direction, the first suction cup assembly is transmission-connected to the Z-axis linear drive mechanism, and is driven by the Z-axis linear drive mechanism to make reciprocating linear motion in the vertical direction; The cleaning mechanism includes a cabin, a fourth roller conveyor, a cleaning component and a foreign matter recovery component. The cabin has an inlet end and an outlet end. The fourth roller conveyor, the cleaning component and the foreign matter recovery component are all arranged in the cabin. One end of the fourth roller conveyor extends out of the outlet end of the cabin, and the other end is connected to the third roller conveyor. The cleaning component includes an upper purge component and a lower purge component. The upper purge component and the lower purge component each include a plurality of air knives. The plurality of air knives of the lower purge component The plurality of wind knives of the lower-layer purge assembly are arranged in the gap between two adjacent rollers of the fourth roller conveyor at intervals in the horizontal direction, and the air outlets of the plurality of wind knives of the lower-layer purge assembly are arranged upwardly tilted, and the plurality of wind knives of the upper-layer purge assembly are arranged above the lower-layer purge assembly, and the air outlets of the plurality of wind knives of the upper-layer purge assembly are arranged downwardly tilted; the foreign matter recovery assembly includes an upper wind scoop covered above the upper-layer purge assembly and a lower wind scoop covered below the lower-layer purge assembly, and the outlet ends of the upper wind scoop and the lower wind scoop are both connected to an exhaust device; The multiple wind knives of the upper purge assembly and the multiple wind knives of the lower purge assembly are alternately arranged in the horizontal direction, and the multiple wind knives of the upper purge assembly and the lower purge assembly also include two anti-static wind knives, which are respectively arranged corresponding to the inlet end and the outlet end of the cabin body, and the anti-static wind knife includes a wind knife and an ion wind rod abutting against the wind knife; The rollers of the first roller conveyor, the second roller conveyor, the third roller conveyor and the fourth roller conveyor are all provided with a limiting assembly, the limiting assembly comprising two roller sleeves respectively sleeved on both ends of the roller, the roller sleeve is provided with a circle of ribs along its circumference, and the ribs of the two roller sleeves are arranged opposite to each other, so as to form a limiting area between the ribs of the two roller sleeves; The stacking mechanism includes a detection component and a stacking component, the detection component includes a photoelectric detection switch, and the detection end of the photoelectric detection switch is arranged toward the outlet end of the cabin; the stacking component includes a manipulator component and a second suction cup component, the manipulator component is arranged near the outlet end of the cleaning mechanism, and is driven by the manipulator component to move in horizontal and vertical directions, the photoelectric detection switch is electrically connected to a controller, and the manipulator component is controlled by the controller; The stacking mechanism also includes a pallet placement station, and the stacking mechanism is also provided with a pallet layer height detection component, and the pallet layer height detection component includes a lower layer opposing photoelectric detection sensor and an upper layer opposing photoelectric detection sensor, the lower layer opposing photoelectric detection sensor and the pallet placement station are located in the same plane, and the upper layer opposing photoelectric detection sensor is correspondingly arranged directly above the lower layer opposing photoelectric detection sensor, and the signal output ends of the lower layer opposing photoelectric detection sensor and the upper layer opposing photoelectric detection sensor are both electrically connected to the controller.

2. A lithium battery packaging tray cleaning device according to claim 1, characterized in that: A brush is fixed in the gap between two adjacent rollers of the first roller conveyor, the second roller conveyor, the third roller conveyor and the fourth roller conveyor. The brush is in a long strip shape and is arranged parallel to the rollers of the roller conveyor.

3. The lithium battery packaging tray cleaning device according to claim 1, characterized in that: The tray is rectangular, and the first suction cup assembly and the second suction cup assembly each include a plurality of vacuum suction cups, the plurality of vacuum suction cups are arranged in a rectangular shape, and each of the vacuum suction cups is connected to a vacuum generator via a pipeline.

4. The lithium battery packaging tray cleaning device according to claim 2, characterized in that: The brush is a conductive PA brush, and the bristles of the brush protrude from the plane where the roller of the conveyor is located.

5. The lithium battery packaging tray cleaning device according to claim 1, characterized in that: The cleaning mechanism also includes a roller brush cleaning assembly, which includes an upper roller brush and a lower roller brush, the lower roller brush is arranged between the two roller conveyors, and the upper roller brush is located above the lower roller brush. The upper roller brush and the lower roller brush each include a telescopic drive mechanism and a roller brush, the roller brush is connected to the telescopic end of the telescopic drive mechanism, and is driven by the telescopic drive mechanism to move in a vertical direction, and the roller brush is driven to rotate by a rotation drive mechanism.

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