An automatic high-speed forming production line for round energy storage battery shells

Abstract

The present invention relates to an automatic high-speed forming production line for circular energy storage battery shells, comprising a blanking unit arranged and interconnected in sequence, a step-by-step gradual drawing unit for gradually thinning and stretching the circular shell blanks, a shoulder forming and trimming unit, and a cleaning and drying unit. A stretching and shaping inter-sequence conveyor is provided between the step-by-step gradual drawing unit and the shoulder forming and trimming unit, and a trimming and cleaning inter-sequence conveyor is provided between the shoulder forming and trimming unit and the cleaning and drying unit. The step-by-step gradual drawing unit includes a bucket-type inclined conveyor discharger, a horizontal punch press, and a corresponding gradual drawing die. The outlet of the gradual drawing die is opposite the conveying starting point of the stretching and shaping inter-sequence conveyor. The gradual drawing die includes multiple concentric circular die openings. The present invention can optimize production cycle time, significantly improve production efficiency, avoid excessive manual intervention, improve production quality, and reduce production costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of production of steel and aluminum round energy storage battery shells, and in particular relates to an automatic high-speed forming production line for round energy storage battery shells. Background Art

[0002] Existing production lines for round steel and aluminum energy storage battery cases primarily utilize vertical progressive die stamping and stretching, requiring large press tonnage and a production cycle of approximately 80-100 pieces per minute. However, in current production lines, products are continuously conveyed through in-mold conveying devices, passing between workstations in sequence. Accumulated errors caused by conveying equipment and other factors can affect the product's dimensional accuracy during continuous transfer. Consequently, these conveying errors can lead to increased errors in the product's external dimensions, resulting in low production efficiency. Human intervention increases uncertainty in the production process, making process traceability difficult and increasing management costs. Summary of the Invention

[0003] In view of the shortcomings of the existing technology and the large gap between the current production efficiency and supply demand, the present invention provides an automatic high-speed forming production line for round energy storage battery shells, which first blanks the material and then performs step-by-step horizontal gradual stretching with concentric die openings of different sizes in the same mold to improve production efficiency and product precision.

[0004] A circular energy storage battery shell automatic high-speed forming production line, including a blanking unit for unwinding and blanking raw materials into a round shell blank, a step-by-step gradual drawing unit for gradually thinning and stretching the round shell blank, a shoulder forming and trimming unit for trimming the battery shell after gradual stretching, and a cleaning and drying unit for cleaning and drying the battery shell. A stretching and shaping inter-sequence conveyor is provided between the step-by-step gradual drawing unit and the shoulder forming and trimming unit, and a trimming and cleaning inter-sequence conveyor is provided between the shoulder forming and trimming unit and the cleaning and drying unit; wherein the step-by-step gradual drawing unit includes a bucket-type inclined conveying and discharging machine, a horizontal punching machine and its corresponding gradually stretching die, and the bucket-type inclined conveying and discharging machine includes a feeding port, a lifting belt, a material lifting baffle, an excess material baffle, a battery shell The limiting track, motor and frame body, the lifting belt is fixed on the frame body in a sloped manner, and the conveying starting end is located at the feed port; a plurality of material lifting baffles are provided on the surface of the lifting belt, and a battery shell limiting track is provided at the conveying end of the lifting belt that only allows one round shell embryo to pass through at a time, and the round shell embryos that enter the feed port in disorder are lifted and arranged in order by the lifting belt 212; the feed port of the bucket-type slope conveying discharger corresponds to the discharge port of the blanking unit, and the discharge port of the bucket-type slope conveying discharger corresponds to the entrance of the gradual stretching die on the horizontal punch press; the outlet of the gradual stretching die is opposite to the conveying starting end of the stretching and shaping sequence conveyor; the gradual stretching die includes a lower template, an upper template and a die base arranged between the lower template and the upper template, and the die base is provided with a plurality of concentric circle die openings with outer dimensions varying from large to small.

[0005] The blanking unit includes an uncoiler, a swinging sheet conveyor, a blanking and stretching press and its corresponding blanking and stretching die. The discharge port of the uncoiler corresponds to the conveying starting end of the swinging sheet conveyor, and the conveying end of the swinging sheet conveyor is connected to the inlet end of the blanking and stretching die of the blanking and stretching press; a sliding plate is provided on the side of the blanking and stretching die, which corresponds to the step-by-step gradual drawing unit of the next process.

[0006] The shoulder forming and trimming unit includes a bucket-type inclined conveyor, a vibrating plate, and a shaping and trimming integrated machine. The inlet of the bucket-type inclined conveyor corresponds to the stretching and shaping inter-sequence conveyor, the outlet of the bucket-type inclined conveyor is located above the inlet of the vibrating plate, and the outlet of the vibrating plate is located above the receiving position of the shaping and trimming integrated machine; the output end of the shaping and trimming integrated machine corresponds to the trimming and cleaning inter-sequence conveyor; the shaping and trimming integrated machine includes a battery shell stepping conveyor and a battery shell stepping conveyor arranged in sequence near the vibrating plate. There are shaping stations and trimming stations on the side, and multiple battery shell pallets are arranged side by side on the battery shell step conveyor. The upper surface of the battery shell pallet is consistent with the shape of the battery shell after gradual stretching. The battery shells after being sorted by the vibration plate fall into the battery shell pallet on the battery shell step conveyor in sequence; a good and waste separation slide is provided below the conveying end of the battery shell step conveyor, and a discharge port for filtering and trimming the waste is provided on the good and waste separation slide, and a waste box is provided below the discharge port; the end outlet of the good and waste separation slide is located above the cleaning sequence conveyor.

[0007] The shaping station includes a battery shell shaping station tail end pushing mechanism, a battery shell shaping station electric rotating mechanism, a battery shell shaping mechanism, and a shaping and material returning mechanism. The battery shell shaping station tail end pushing mechanism and the battery shell shaping station electric rotating mechanism are arranged relatively on both sides of the battery shell stepping conveyor. The battery shell shaping station tail end pushing mechanism includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected to a push rod through a cylindrical bearing, and the end of the push rod is fixed by the inner ring of the cylindrical bearing; the battery shell shaping mechanism is arranged on the rotating end side of the battery shell shaping station electric rotating mechanism, including a cylinder and a shaping roller arranged at the end of the cylinder; the shaping and material returning mechanism is arranged on the battery shell shaping station electric rotating mechanism, including a cylinder and a push plate at the end of the cylinder, and the push plate is arranged on the rotating end side of the battery shell shaping station electric rotating mechanism.

[0008] The trimming station includes a battery shell trimming station tail end pushing mechanism, a battery shell trimming station electric rotating mechanism, a battery shell trimming mechanism, and a trimming and material returning mechanism. The battery shell trimming station tail end pushing mechanism and the battery shell trimming station electric rotating mechanism are arranged relatively on both sides of the battery shell stepping conveyor. The battery shell trimming station tail end pushing mechanism includes a support seat and a cylinder fixed on the support seat, the end of the cylinder is connected to a push rod through a cylindrical bearing, and the end of the push rod is fixed by the inner ring of the cylindrical bearing; the battery shell trimming mechanism is arranged on the rotating end side of the battery shell trimming station electric rotating mechanism, including a cylinder and a trimming roller arranged at the end of the cylinder; the trimming and material returning mechanism is arranged on the battery shell trimming station electric rotating mechanism, including a cylinder and a push plate at the end of the cylinder, and the push plate is arranged on the rotating end side of the battery shell trimming station electric rotating mechanism.

[0009] The shoulder forming and trimming unit includes four trimming and shaping stations, including four sets of trimming and shaping devices, which are arranged side by side along the shaping sequence conveyor.

[0010] The cleaning and drying unit includes an ultrasonic cleaning and drying all-in-one machine, specifically including an ultrasonic cleaning machine, a cleaning tank, and a drying machine. The ultrasonic cleaning machine and the drying machine are sequentially mounted on the outside of the internal plane conveyor, and the conveying end of the conveyor between the trimming and cleaning sequences corresponds to the conveying starting end of the internal plane conveyor.

[0011] The gradual stretching die comprises 3-5 concentric circular die openings whose outer dimensions change from large to small.

[0012] The electric rotating mechanism of the battery shell shaping station has the same structure as the electric rotating mechanism of the battery shell trimming station, both of which include a motor and a rotating end connected to the output end of the motor through a belt transmission, and the rotating end is cylindrical.

[0013] The beneficial effects of the present invention are as follows: the production line provided by the present invention is composed of a swinging plate conveyor, a bucket-type inclined conveyor and discharger, a flat conveyor, a bucket-type inclined conveyor, and a vibrating plate through transmission between each unit, and the automated transmission of the entire line material is composed of an unmanned process, realizing fully automated loading and unloading, unwinding, feeding, blanking stretching, gradual stretching, shaping, trimming, cleaning, and drying; at the same time, based on the production efficiency of the gradual thinning stretching machine, the number of workstations matched with each unit is set accordingly, so that the equipment of each unit and the units can achieve fully automated production. The present invention updates the traditional multi-station stretching production mode to a battery shell blank driven by a punch rod of a horizontal punch press, passing through multiple concentric circular die openings in sequence to finally form a finished product, so that the product reduces intermediate transmission equipment, reduces production costs, optimizes production rhythm, and can greatly improve production efficiency, avoiding excessive manual intervention. The estimated production rhythm of this production line is 400-500 pieces / minute. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of an automatic high-speed molding production line for round energy storage battery shells provided by an embodiment of the present invention;

[0015] Figure 2 Schematic diagram of the blanking unit of the present invention;

[0016] Figure 3 Schematic diagram of the step-by-step gradual drawing unit of the present invention;

[0017] Figure 4 Schematic diagram of the shoulder forming and trimming unit of the present invention;

[0018] Figure 5 Schematic diagram of the cleaning and drying unit of the present invention;

[0019] Figure 6 Schematic diagram of the gradual stretching die of the present invention;

[0020] Figure 7 Schematic diagram of the bucket-type inclined conveyor discharger of the present invention;

[0021] Figure 8 Schematic diagram of the electric rotating mechanism of the new type of shaping station and trimming station;

[0022] in,

[0023] 1-Blanking and forming unit, 2-Gradual drawing unit, 3-Shoulder forming and trimming unit, 4-Cleaning and drying unit, 5-Stretching and shaping process conveyor, 6-Trimming and cleaning process conveyor, 11-Unwinder, 12-Swinging sheet conveyor, 13-Blanking and stretching press, 14-Blanking and stretching die, 21-Bucket type inclined conveyor discharger, 211-Feeding port, 212-Lifting belt, 213-Material lifting baffle, 214-Excess material baffle, 215-Motor, 216-Battery shell limiting track, 217-Frame body, 22-Horizontal punch, 23-Gradual stretching die, 231-Lower template, 232-Die base, 233-Die mouth, 234-upper template, 31-bucket inclined conveyor, 32-vibrating plate, 33-shaping and trimming machine, 331-battery shell shaping position tail end jacking mechanism, 332-battery shell shaping station electric rotation mechanism, 3321-motor, 3322-rotating end, 333-battery shell shaping mechanism, 334-shaping and material return mechanism, 3341-cylinder, 3342-push plate, 335-battery shell trimming position tail end jacking mechanism, 336-battery shell trimming station electric rotation mechanism, 337-battery shell trimming mechanism, 338-trimming and material return mechanism, 339-battery shell stepping conveyor, 3310-good and waste separation slide, 41-ultrasonic cleaning and drying machine. DETAILED DESCRIPTION

[0024] In order to better explain the present invention and facilitate understanding, the technical solutions and effects of the present invention are described in detail below with reference to the accompanying drawings through specific implementation methods.

[0025] like Figure 1 As shown, an automatic high-speed forming production line for round energy storage battery shells includes a blanking unit 1, a step-by-step gradual drawing unit 2, a shoulder forming and trimming unit 3, and a cleaning and drying unit 4, which are arranged in sequence and connected to each other. A stretching and shaping inter-process conveyor 5 is provided between the step-by-step gradual drawing unit 2 and the shoulder forming and trimming unit 3, and a trimming and cleaning inter-process conveyor 6 is provided between the shoulder forming and trimming unit 3 and the cleaning and drying unit 4. The order of arrangement of the unit processes is blanking unit 1, step-by-step gradual drawing unit 2, shoulder forming and trimming unit 3, and cleaning and drying unit 4.

[0026] like Figure 2As shown, the blanking unit 1 is used to unwind the raw material and blank and stretch it into a round shell blank, including an uncoiler 11, a swinging plate conveyor 12, a blanking and stretching press 13 and its corresponding blanking and stretching die 14. The discharge port of the uncoiler 11 corresponds to the conveying starting end of the swinging plate conveyor 12, and the conveying end of the swinging plate conveyor 12 is connected to the inlet end of the blanking and stretching die 14 of the blanking and stretching press 13; a sliding plate is provided on the side of the blanking and stretching die 14, which corresponds to the step-by-step gradual drawing unit 2 of the next process. The raw material coil is put onto the uncoiler 11, and after being flattened by the uncoiler 11, it enters the swinging plate conveyor 12, and is transferred to the blanking and stretching die 14 through the swinging plate conveyor 12. While being transported by the swinging plate conveyor 12, the blanking and stretching disc positions are arranged through its horizontal and vertical movements. The blanking and stretching press 13 works to perform blanking and stretching operations to form round shell embryos. After blanking and stretching, the round shell embryos flow into the next sequence through the sliding plate on the blanking and stretching die 14, and the remaining waste plates are collected in the opposite direction by the uncoiler 11.

[0027] like Figure 3 As shown, the step-by-step gradual drawing unit 2 is used to perform gradual thinning and stretching on the round shell blank, including a bucket-type inclined conveyor discharger 21, a horizontal punch 22 and its corresponding gradual drawing die 23. Figure 7 As shown, the bucket-type inclined conveyor discharger 21 includes a feed port 211, a lifting belt 212, a material lifting baffle 213, an excess material baffle 214, a motor 215, a battery shell limiting rail 216, and a frame body 217. The lifting belt 212 is fixed on the frame body 217 in a sloped manner, and the conveying starting end is located at the feed port 211; a plurality of material lifting baffles 213 are provided on the surface of the lifting belt 212, and a battery shell limiting rail 216 that only allows one round shell embryo to pass through at a time is provided at the conveying end of the lifting belt 212, and the round shell embryos that enter the feed port 211 in an disorderly manner are lifted and arranged in order by the lifting belt 212; an excess material baffle 214 is provided at the connection between the conveying end of the lifting belt 212 and the battery shell limiting rail 216, located on the upper part of the material lifting baffle 213, to prevent excess material from falling. The inlet 211 of the bucket-type inclined conveyor 21 corresponds to the outlet of the blanking unit 1, specifically to the slide plate on the blanking and stretching die 14. The outlet of the bucket-type inclined conveyor 21 corresponds to the inlet of the gradual stretching die 23 on the horizontal punch 22; the outlet of the gradual stretching die 23 is opposite to the conveying starting end of the stretching and shaping process conveyor 5. Figure 6As shown, the gradual stretching die 23 includes a lower template 231, an upper template 234 and a die base 232 arranged between the lower template 231 and the upper template 234. The die base 232 is provided with a plurality of concentric circular die openings 233 whose outer dimensions change from large to small, specifically 3-5. The gradual stretching die 23 in this embodiment includes three concentric circular die openings; the outer dimensions of the concentric die openings are the gradual process of the product from large to small, and the product is stretched through a group of concentric die openings of the gradual stretching die 23 in sequence to form the dimensions required by the drawing. The disordered round shell blanks that slide out from the sliding plate of the blanking and stretching die 14 in the blanking and stretching process fall into the hopper through the feeding port of the bucket-type inclined conveyor discharger 21. After being lifted to a certain height by the bucket-type inclined conveyor discharger 21, they are transported one by one to the receiving station of the gradual thinning and stretching machine 22 through the battery shell limiting track 216 that can only accommodate a single row of products, and enter the gradual stretching die 23. The battery shells that have been gradually stretched and formed by multiple groups of circular die openings of the gradual stretching die 23 are slid onto the conveyor 5 between the stretching and shaping sequences and continue to be transferred backward.

[0028] The die opening of the gradual stretching die 23 is made of hard alloy steel including YG20 and YG15.

[0029] like Figure 4 As shown, the shoulder forming and trimming unit 3 is used to trim the battery shell after gradual stretching forming, including a bucket slope conveyor 31, a vibration plate 32, and a shaping and trimming integrated machine 33. The inlet of the bucket slope conveyor 31 corresponds to the stretching and shaping process conveyor 5, and the outlet of the bucket slope conveyor 31 is located above the inlet of the vibration plate 32, and the outlet of the vibration plate 32 is located above the receiving position of the shaping and trimming integrated machine 33; the output end of the shaping and trimming integrated machine 33 corresponds to the trimming and cleaning process conveyor 6. The shaping and trimming integrated machine 33 includes a battery shell step conveyor 339 and shaping and trimming stations arranged in sequence on the sides of the battery shell step conveyor 339 near the vibration plate. A plurality of battery shell support plates are arranged side by side on the battery shell step conveyor 339. The surface of the battery shell support plates is consistent with the shape of the battery shell after gradual stretching. After being sorted by the vibration plate 32, the battery shells fall sequentially onto the battery shell support plates on the battery shell step conveyor 339. A good and waste separation chute 3310 is provided below the conveying end of the battery shell step conveyor 339. The good and waste separation chute 3310 has a discharge port for filtering and trimming the waste, and a waste box is provided below the discharge port. The terminal outlet of the good and waste separation chute 3310 is located above the cleaning process conveyor 6.

[0030] The shaping station includes a battery shell shaping station tail end pushing mechanism 331, a battery shell shaping station electric rotating mechanism 332, a battery shell shaping mechanism 333, and a shaping and unloading mechanism 334. The battery shell shaping station tail end pushing mechanism 331 and the battery shell shaping station electric rotating mechanism 332 are arranged on both sides of the battery shell stepping conveyor 339 relative to each other. The battery shell shaping station tail end pushing mechanism 331 includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected to a push rod through a cylindrical bearing. The end of the push rod is fixed by the inner ring of the cylindrical bearing. The cylinder extends outward to push the battery shell to be shaped to the rotating end 3322 of the battery shell shaping station electric rotating mechanism 332, and during shaping, the push rod is pushed against one end of the battery shell to be shaped, and the push rod is moved along with the rotating end 3322. Rotation; the battery shell shaping mechanism 333 is arranged on the side of the rotating end 3322 of the electric rotating mechanism 332 of the battery shell shaping station, including a cylinder and a shaping roller arranged at the end of the cylinder. The cylinder extends outward close to the battery shell, and the shaping roller rotates the battery shell that is driven by the electric rotating mechanism 332 of the battery shell shaping station while shaping it; the shaping and material returning mechanism 334 is arranged on the electric rotating mechanism 332 of the battery shell shaping station, including a cylinder 3341 and a push plate 3342 at the end of the cylinder, and the push plate 3342 is arranged on the side of the rotating end 3322 of the electric rotating mechanism 332 of the battery shell shaping station. When the battery shell is shaped, the other end is pressed against the push plate 3342. After shaping, the cylinder extends outward to push the shaped battery shell back to the battery shell support plate.

[0031] The trimming station includes a battery shell trimming station tail end pushing mechanism 335, a battery shell trimming station electric rotating mechanism 336, a battery shell trimming mechanism 337, and a trimming and material returning mechanism 338. The battery shell trimming station tail end pushing mechanism 335 and the battery shell trimming station electric rotating mechanism 336 are arranged on both sides of the battery shell stepping conveyor 339 relative to each other. The battery shell trimming station tail end pushing mechanism 335 includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected to a push rod through a cylindrical bearing. The end of the push rod is fixed by the inner ring of the cylindrical bearing. The cylinder extends outward to push the battery shell to be trimmed to the rotating end 3322 of the battery shell trimming station electric rotating mechanism 336, and when trimming, the push rod is pressed against one end of the battery shell to be shaped, and the push rod is moved along with the rotating end 3322. Rotation; the battery shell trimming mechanism 337 is arranged on the side of the rotating end 3322 of the electric rotating mechanism 336 of the battery shell trimming station, including a cylinder and a trimming roller arranged at the end of the cylinder. The cylinder extends outward close to the battery shell, and the trimming roller trims the battery shell while rotating at a high speed driven by the electric rotating mechanism 336 of the battery shell trimming station; the trimming and material return mechanism 338 is arranged on the electric rotating mechanism 336 of the battery shell trimming station, including a cylinder 3341 and a push plate 3342 at the end of the cylinder. The push plate 3342 is arranged on the side of the rotating end 3322 of the electric rotating mechanism 336 of the battery shell trimming station. When the battery shell is trimmed, the other end is pressed against the push plate 3342. After trimming, the cylinder extends outward to push the trimmed battery shell back to the battery shell support plate.

[0032] like Figure 8 As shown, the electric rotating mechanism 332 of the battery shell shaping station has the same structure as the electric rotating mechanism 336 of the battery shell trimming station, both of which include a motor 3321 and a rotating end 3322 connected to the output end of the motor 3321 through a belt drive. The rotating end 3322 is cylindrical and is used to support the battery shell. The battery shell is mounted on the outside of the cylindrical rotating end 3322 and rotates through the belt drive driven by the motor.

[0033] After the bucket-type inclined conveyor 31 receives the battery shell material transferred by the stretching and shaping sequence conveyor 5, it is conveyed to the vibrating plate 32. After the vibrating plate 32 sorts the material, it is output in an orderly manner to the receiving position of the shaping and trimming machine 33. The battery shell stepping conveyor 339 on the shaping and trimming machine 33 advances in a stepping manner. The material first reaches the shaping station. The tail end of the battery shell is supported by the push rod at the end of the cylinder of the battery shell shaping position tail end pushing mechanism 331. The motor of the battery shell shaping position electric rotating mechanism 332 rotates, the battery shell rotates rapidly, and the cylinder of the battery shell shaping mechanism 333 is pushed forward, driving the shaping roller close to the high-speed rotating battery shell to complete the shaping process; after completion, the cylinder connected to the shaping roller retreats, the cylinder of the battery shell shaping position tail end pushing mechanism 331 retreats, and the cylinder in the shaping material returning mechanism 334 extends to push the shaped battery shell onto the battery shell stepping conveyor 339. The battery shell stepper conveyor 339 continues to advance, transporting the shaped battery shells to the trimming station. The tail end of the battery shell is supported by the push rod at the end of the cylinder in the battery shell trimming station tail end push mechanism 335. The motor of the battery shell trimming station electric rotation mechanism 336 is activated, causing the battery shell to rotate rapidly. The trimming roller is propelled by the cylinder of the battery shell trimming mechanism 337, approaching the high-speed rotating battery shell to complete the trimming process. After completion, the cylinder of the battery shell trimming mechanism 337 retracts, the cylinder in the battery shell trimming station tail end push mechanism 335 retreats, and the cylinder in the trimming return mechanism 338 extends, pushing the trimmed battery shell and the trimmed waste edge to the battery shell stepper conveyor 339. After the battery shell stepper conveyor 339 continues to transport to the conveying end, it is sent to the good and waste separation chute 3310, and the waste enters the waste bin. The finished battery shell trimmed product falls onto the cleaning process conveyor 6 and continues to be transferred backward.

[0034] The shoulder forming and trimming unit 3 in this embodiment includes four trimming and shaping stations, including four sets of trimming and shaping devices, which are arranged side by side along the shaping process conveyor 5. The trimmed battery shells are transferred to the rear after merging with the trimming and cleaning process conveyor 6.

[0035] like Figure 5 As shown, the cleaning and drying unit 4 is used to clean and dry the battery shells. It includes a commercially available ultrasonic cleaning and drying machine 41, which specifically includes an ultrasonic cleaning machine, a cleaning tank, an internal flat conveyor, and a dryer. The ultrasonic cleaning machine and dryer are sequentially mounted outside the internal flat conveyor. The conveying end of the trimming and cleaning process conveyor 6 corresponds to the conveying starting point of the internal flat conveyor. The battery shells conveyed from the cleaning process conveyor 6 are transported to the ultrasonic cleaning machine and dryer via the internal flat conveyor in sequence for ultrasonic cleaning and subsequent drying operations, and then the finished round battery shells are transferred out.

[0036] The working principle and workflow of the above-mentioned automatic high-speed forming production line for round energy storage battery shells are as follows:

[0037] The raw material coil is put onto the uncoiler 11, and after being flattened by the uncoiler 11, it enters the swinging plate conveyor 12, and is transferred to the blanking and stretching die 14 through the swinging plate conveyor 12. While being transported by the swinging plate conveyor 12, the blanking and stretching disc positions are arranged through its horizontal and vertical movements. The blanking and stretching press 13 works to perform blanking and stretching operations to form round shell embryos. After blanking and stretching, the round shell embryos flow into the next sequence through the sliding plate on the blanking and stretching die 14, and the remaining waste plates are collected in the opposite direction by the uncoiler 11. The disordered round shell blanks that slide out from the sliding plate of the blanking and stretching die 14 in the blanking and stretching process fall into the hopper through the feeding port of the bucket-type inclined conveyor discharger 21. After being lifted to a certain height by the bucket-type inclined conveyor discharger 21, they are transported one by one to the receiving station of the gradual thinning and stretching machine 22 through the battery shell limiting track 216 that can only accommodate a single row of products, and enter the gradual stretching die 23. The battery shells that have been gradually stretched and formed by multiple groups of circular die openings of the gradual stretching die 23 are slid onto the conveyor 5 between the stretching and shaping sequences and continue to be transferred backward. After the bucket-type inclined conveyor 31 receives the battery shell material transferred by the stretching and shaping sequence conveyor 5, it is conveyed to the vibrating plate 32. After the vibrating plate 32 sorts the material, it is output in an orderly manner to the receiving position of the shaping and trimming machine 33. The battery shell stepping conveyor 339 on the shaping and trimming machine 33 advances in a stepping manner. The material first reaches the shaping station. The tail end of the battery shell is supported by the push rod at the end of the cylinder of the battery shell shaping position tail end pushing mechanism 331. The motor of the battery shell shaping position electric rotating mechanism 332 rotates, and the battery shell rotates rapidly. The push rod at the end of the cylinder of the battery shell shaping mechanism 333 pushes forward, driving the shaping roller to approach the high-speed rotating battery shell to complete the shaping process; after completion, the cylinder connected to the shaping roller retreats, the cylinder of the battery shell shaping position tail end pushing mechanism 331 retreats, and the cylinder in the shaping material returning mechanism 334 extends to push the shaped battery shell onto the battery shell stepping conveyor 339. The battery shell stepper conveyor 339 continues to advance, transporting the shaped battery shells to the trimming station. The tail end of the battery shell is supported by the cylinder in the battery shell trimming station tail end push mechanism 335. The motor of the battery shell trimming station electric rotation mechanism 336 is activated, causing the battery shell to rotate rapidly. The trimming roller is propelled by the cylinder of the battery shell trimming mechanism 337, approaching the high-speed rotating battery shell to complete the trimming process. After completion, the cylinder of the battery shell trimming mechanism 337 retracts, the cylinder in the battery shell trimming station tail end push mechanism 335 retreats, and the cylinder in the trimming return mechanism 338 extends, pushing the trimmed battery shell and the trimmed waste edge to the battery shell stepper conveyor 339. The battery shell stepper conveyor 339 continues to convey to the conveying end, and then sends the waste to the good and waste separation chute 3310, where the waste enters the waste bin. The trimmed battery shell falls onto the cleaning process conveyor 6 and continues to be transferred backward. The battery shells conveyed by the cleaning sequence conveyor 6 are conveyed by the internal plane conveyor in sequence to the ultrasonic cleaning machine and the dryer for ultrasonic cleaning and subsequent drying operations, and then the finished round battery shells are transferred out.

Claims

1. An automatic high-speed forming production line for round energy storage battery shells, characterized by: The invention comprises a blanking unit for unwinding and blanking the raw material and stretching it into a round shell blank, a step-by-step gradual drawing unit for gradually thinning and stretching the round shell blank, a shoulder forming and trimming unit for trimming the battery shell after gradual stretching, and a cleaning and drying unit for cleaning and drying the battery shell. A stretching and shaping inter-sequence conveyor is provided between the step-by-step gradual drawing unit and the shoulder forming and trimming unit, and a trimming and cleaning inter-sequence conveyor is provided between the shoulder forming and trimming unit and the cleaning and drying unit. The step-by-step gradual drawing unit comprises a bucket-type inclined conveying and discharging machine, a horizontal punching machine and its corresponding gradually stretching die, the bucket-type inclined conveying and discharging machine comprises a feeding port, a lifting belt, a material lifting baffle, an excess material baffle, a battery shell limiting track, a motor and the frame body, the lifting belt is fixed on the frame body in an inclined manner, and the conveying starting end is located at the feed inlet; a plurality of material lifting baffles are provided on the surface of the lifting belt, and a battery shell limiting track is provided at the conveying end of the lifting belt that only allows one round shell embryo to pass through at a time, and the round shell embryos that enter the feed in disorder are lifted by the lifting belt and arranged in order; the feed inlet of the bucket-type inclined conveying and discharging machine corresponds to the discharge port of the blanking unit, and the discharge port of the bucket-type inclined conveying and discharging machine corresponds to the inlet of the gradual stretching die on the horizontal punch press; the outlet of the gradual stretching die is opposite to the conveying starting end of the stretching and shaping sequence conveyor; the gradual stretching die includes a lower template, an upper template and a die base arranged between the lower template and the upper template, and the die base is provided with a plurality of concentric circular die openings with outer dimensions varying from large to small; The shoulder forming and trimming unit includes a bucket-type inclined conveyor, a vibrating plate, and a shaping and trimming integrated machine. The inlet of the bucket-type inclined conveyor corresponds to the stretching and shaping inter-sequence conveyor, the outlet of the bucket-type inclined conveyor is located above the inlet of the vibrating plate, and the outlet of the vibrating plate is located above the receiving position of the shaping and trimming integrated machine; the output end of the shaping and trimming integrated machine corresponds to the trimming and cleaning inter-sequence conveyor; the shaping and trimming integrated machine includes a battery shell stepping conveyor and a battery shell stepping conveyor arranged in sequence near the vibrating plate. The shaping station and trimming station on the side, a plurality of battery shell support plates are arranged side by side on the battery shell stepping conveyor, the upper surface of the battery shell support plate is consistent with the shape of the battery shell after gradual stretching, and the battery shells after being sorted by the vibration plate fall into the battery shell support plates on the battery shell stepping conveyor in sequence; a good and waste separation slide is provided below the conveying end of the battery shell stepping conveyor, and a discharge port for filtering and trimming the waste is provided on the good and waste separation slide, and a waste box is provided below the discharge port; the terminal outlet of the good and waste separation slide is located above the cleaning sequence conveyor; The gradual stretching die comprises 3-5 concentric circular die openings whose outer dimensions change from large to small.

2. The automatic high-speed forming production line for round energy storage battery shells according to claim 1, characterized in that: The blanking unit includes an uncoiler, a swinging sheet conveyor, a blanking and stretching press and its corresponding blanking and stretching die. The discharge port of the uncoiler corresponds to the conveying starting end of the swinging sheet conveyor, and the conveying end of the swinging sheet conveyor is connected to the inlet end of the blanking and stretching die of the blanking and stretching press; a sliding plate is provided on the side of the blanking and stretching die, which corresponds to the step-by-step gradual drawing unit of the next process.

3. The automatic high-speed forming production line for round energy storage battery shells according to claim 1, characterized in that: The shaping station includes a battery shell shaping station tail end pushing mechanism, a battery shell shaping station electric rotating mechanism, a battery shell shaping mechanism, and a shaping and material returning mechanism. The battery shell shaping station tail end pushing mechanism and the battery shell shaping station electric rotating mechanism are arranged relatively on both sides of the battery shell stepping conveyor. The battery shell shaping station tail end pushing mechanism includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected to a push rod through a cylindrical bearing, and the end of the push rod is fixed by the inner ring of the cylindrical bearing; the battery shell shaping mechanism is arranged on the rotating end side of the battery shell shaping station electric rotating mechanism, including a cylinder and a shaping roller arranged at the end of the cylinder; the shaping and material returning mechanism is arranged on the battery shell shaping station electric rotating mechanism, including a cylinder and a push plate at the end of the cylinder, and the push plate is arranged on the rotating end side of the battery shell shaping station electric rotating mechanism.

4. The automatic high-speed forming production line for round energy storage battery shells according to claim 1, characterized in that: The trimming station includes a battery shell trimming station tail end pushing mechanism, a battery shell trimming station electric rotating mechanism, a battery shell trimming mechanism, and a trimming and material returning mechanism. The battery shell trimming station tail end pushing mechanism and the battery shell trimming station electric rotating mechanism are arranged relatively on both sides of the battery shell stepping conveyor. The battery shell trimming station tail end pushing mechanism includes a support seat and a cylinder fixed on the support seat, the end of the cylinder is connected to a push rod through a cylindrical bearing, and the end of the push rod is fixed by the inner ring of the cylindrical bearing; the battery shell trimming mechanism is arranged on the rotating end side of the battery shell trimming station electric rotating mechanism, including a cylinder and a trimming roller arranged at the end of the cylinder; the trimming and material returning mechanism is arranged on the battery shell trimming station electric rotating mechanism, including a cylinder and a push plate at the end of the cylinder, and the push plate is arranged on the rotating end side of the battery shell trimming station electric rotating mechanism.

5. The automatic high-speed forming production line for round energy storage battery shells according to claim 1, characterized in that: The shoulder forming and trimming unit includes four trimming and shaping stations, including four sets of trimming and shaping devices, which are arranged side by side along the shaping sequence conveyor.

6. The automatic high-speed forming production line for round energy storage battery shells according to claim 1, characterized in that: The cleaning and drying unit includes an ultrasonic cleaning and drying all-in-one machine, specifically including an ultrasonic cleaning machine, a cleaning tank, and a drying machine. The ultrasonic cleaning machine and the drying machine are sequentially mounted on the outside of the internal plane conveyor, and the conveying end of the conveyor between the trimming and cleaning sequences corresponds to the conveying starting end of the internal plane conveyor.

7. The automatic high-speed forming production line for round energy storage battery shells according to claim 3, characterized in that: The electric rotating mechanism of the battery shell shaping station has the same structure as the electric rotating mechanism of the battery shell trimming station, both of which include a motor and a rotating end connected to the output end of the motor through a belt transmission, and the rotating end is cylindrical.

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