A horizontal extrusion forming production line for a circular thin-walled energy storage battery case

Abstract

The present invention relates to a horizontal extrusion forming production line for a circular thin-walled energy storage battery case, which is characterized in that it includes a horizontal multi-mode extrusion forming unit for extruding and forming bulk raw materials, a shaping, trimming and polishing unit for successively shaping, trimming and polishing the extruded battery case, and a cleaning and drying unit for cleaning and drying the battery case. The bulk raw materials are successively formed into the finally formed circular thin-walled energy storage battery case through the horizontal multi-mode extrusion forming unit, the shaping, trimming and polishing unit, and the cleaning and drying unit. The present invention improves the product precision, reduces the product wall thickness and increases the production beat through the multi-mode parallel horizontal extrusion forming method of a horizontal cold extrusion press.

Description

Technical Field

[0001] The invention belongs to the technical field of steel and aluminum circular thin-walled energy storage batteries, and particularly relates to a horizontal extrusion forming production line for circular thin-walled energy storage battery cases. Background Art

[0002] At present, the existing production lines for steel and aluminum circular battery cases mainly adopt the form of vertical progressive die stamping and stretching. Such production lines need to perform continuous stamping through a multi-station form to obtain battery case products with a wall thickness less than 0.3 mm. At the same time, the products are continuously conveyed by the in-mold conveying device of the equipment and are sequentially transferred between stations. There is an accumulated error generated with the conveying equipment and the like during the process of the product being transferred from station 1 to station n, which makes the dimensional accuracy error of the product appearance larger. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the invention provides a horizontal extrusion forming production line for circular thin-walled energy storage battery cases. By arranging multiple identical die orifices side by side in a horizontal press, multiple products are formed in one action, reducing the processing steps for realizing thin-walled shell products and improving the production rhythm.

[0004] A horizontal extrusion forming production line for circular thin-walled energy storage battery cases includes a horizontal multi-die extrusion forming unit, a shaping, trimming and polishing unit, and a cleaning and drying unit arranged in sequence. The horizontal multi-die extrusion forming unit includes a horizontal cold extrusion press, a flat conveyor, a multi-outlet vibrating bowl, a bucket-type ramp conveyor, an extrusion product appearance detection CCD, a defective product ejection cylinder, a defective product conveyor, a controller, and a control cabinet electrically connected to the controller. The extrusion product appearance detection is electrically connected to the controller, and the defective product ejection cylinder is electrically connected to the control cabinet; the extrusion product appearance detection CCD and the defective product ejection cylinder are sequentially installed at the conveying end of the flat conveyor, and the defective product ejection cylinder is close to one side of the conveying end of the flat conveyor; the defective product conveyor is arranged on the other side of the flat conveyor and corresponds to the defective product ejection cylinder; the discharge port of the bucket-type ramp conveyor is located above the receiving port of the multi-outlet vibrating bowl; the horizontal cold extrusion press includes a forming bottom die, a stripping plate, and an extrusion top rod. The shape of the extrusion top rod is the same as the shape of the battery case to be formed, and the number of extrusion top rods is the same as the number of outlets of the multi-outlet vibrating bowl; the vibrating bowl track is communicated with the forming bottom die, and the forming bottom die is provided with receiving positions equal to the number of outlets of the multi-outlet vibrating bowl, and fiber optic sensors are arranged on the receiving positions; the stripping plate is fixed between the forming bottom die and the extrusion top rod, and through holes with the same shape as the outer shape of the extrusion top rod are formed on the stripping plate; the flat conveyor is arranged between the forming bottom die and the stripping plate;

[0005] The shaping, trimming and polishing unit includes a shaping, trimming and polishing integrated machine, which includes a working platform, a pneumatic material grabbing gripper and a battery case stepping conveyor arranged on the working platform. The battery case stepping conveyor and the planar conveyor of the horizontal multi-mode extrusion forming unit are connected by the pneumatic material grabbing gripper 2111 to form a material transfer connection. A plurality of battery case pallets are arranged side by side on the battery case stepping conveyor; a good-waste separation chute is arranged below the conveying end of the battery case stepping conveyor, and a waste box is arranged below the discharge port; the end outlet of the good-waste separation chute is located above the internal planar conveyor of the cleaning and drying unit; on the working platform, a shaping station and a trimming station are sequentially arranged along the battery case stepping conveyor.

[0006] The multi-outlet vibrating bowl has three outlets.

[0007] The upper surface of the battery case pallet is consistent with the shape of the battery case after extrusion forming.

[0008] The good-waste separation chute has a discharge port for filtering and trimming the lower waste.

[0009] The shaping station includes a tail-end jacking mechanism for the battery case shaping position, a rotating mechanism for the battery case shaping station, a battery case shaping mechanism, and a shaping unloading mechanism. The tail-end jacking mechanism for the battery case shaping position and the rotating mechanism for the battery case shaping station are arranged opposite to each other on both sides of the battery case stepping conveyor. The tail-end jacking mechanism for the battery case shaping position includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected with a jacking rod through a cylindrical bearing, and the end of the jacking rod is fixed by the inner ring of the cylindrical bearing; the battery case shaping mechanism is arranged on one side of the rotating end of the rotating mechanism for the battery case shaping station, and includes a cylinder and a shaping roller arranged at the end of the cylinder; the shaping unloading mechanism is arranged on the rotating mechanism for the battery case shaping station, and includes a cylinder and a push plate at the end of the cylinder. The push plate is arranged on one side of the rotating end of the rotating mechanism for the battery case shaping station.

[0010] The trimming station includes a tail-end jacking mechanism for the battery case trimming position, a rotating mechanism for the battery case trimming station, a battery case trimming mechanism, and a trimming unloading mechanism. The tail-end jacking mechanism for the battery case trimming position and the rotating mechanism for the battery case trimming station are arranged opposite to each other on both sides of the battery case stepping conveyor. The tail-end jacking mechanism for the battery case trimming position includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected with a jacking rod through a cylindrical bearing, and the end of the jacking rod is fixed by the inner ring of the cylindrical bearing; the battery case trimming mechanism is arranged on one side of the rotating end of the rotating mechanism for the battery case trimming station, and includes a cylinder and a trimming roller arranged at the end of the cylinder; the trimming unloading mechanism is arranged on the rotating mechanism for the battery case trimming station, and includes a cylinder and a push plate at the end of the cylinder. The push plate is arranged on one side of the rotating end of the rotating mechanism for the battery case trimming station.

[0011] The cleaning and drying unit includes an ultrasonic cleaning and drying all-in-one machine, specifically including an ultrasonic cleaner, a cleaning tank, an internal flat conveyor, and a dryer. The ultrasonic cleaner and the dryer are successively installed outside the internal flat conveyor, and the end of the good-waste separation slideway is above the starting end of the internal flat conveyor.

[0012] The beneficial effects of the present invention are as follows: Through fully automated loading and unloading, extrusion, shaping, trimming, polishing, cleaning, and drying, and with the conveying devices arranged between various equipment, full automation production is achieved between the equipment and each unit. Control is carried out in key production links to optimize the production rhythm. The present invention greatly improves the production efficiency, and the production rhythm is 100 pieces per minute; it avoids excessive manual intervention, improves the production quality while reducing the production cost, and changes the need for multiple forming processes for thin-walled shell products to a single extrusion process. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the horizontal extrusion forming production line for circular thin-walled energy storage battery cases provided by the embodiment of the present invention;

[0014] Figure 2 It is a schematic diagram of the horizontal multi-mode extrusion forming unit in the present invention;

[0015] Figure 3 It is a schematic diagram of the shaping, trimming and polishing unit in the present invention;

[0016] Figure 4 It is a schematic diagram of the cleaning and drying unit in the present invention;

[0017] Figure 5 It is a schematic diagram of the rotating mechanism in the shaping station and the trimming station in the present invention;

[0018] Figure 6 It is a schematic diagram of the pneumatic material-taking gripper in the shaping station of the present invention;

[0019] Among them,

[0020] 1 - Horizontal multi-mode extrusion forming unit, 2 - Shaping, trimming and polishing unit, 3 - Cleaning and drying unit, 11 - Horizontal cold extrusion press, 12 - Plane conveyor, 13 - Multi-outlet vibrating bowl, 14 - Bucket type inclined conveyor, 15 - Extruded product appearance detection CCD, 16 - Defective product ejection cylinder, 17 - Defective product conveyor, 111 - Extrusion ejector rod, 112 - Stripping plate, 113 - Forming bottom die, 131 - Vibrating bowl track, 21 - Integrated shaping, trimming and polishing machine, 211 - Tail end jacking mechanism for battery case shaping position, 212 - Rotary mechanism for battery case shaping station, 2121 - Motor, 2122 - Rotary end, 213 - Battery case shaping mechanism, 214 - Shaping and unloading mechanism, 2141 - Cylinder, 2142 - Push plate, 215 - Tail end jacking mechanism for battery case trimming position, 216 - Rotary mechanism for battery case trimming station, 217 - Battery case trimming mechanism, 218 - Trimming and unloading mechanism, 219 - Battery case step conveyor, 2110 - Good and waste separation chute, 2111 - Pneumatic material grabbing gripper, 21111 - Support column, 21112 - X-direction cylinder, 21113 - X-direction guide rail, 21114 - Z-direction track, 21115 - Z-direction cylinder, 21116 - Pneumatic gripper, 21117 - Clamping plate, 31 - Integrated ultrasonic cleaning and drying machine. Detailed implementation mode

[0021] In order to better explain the present invention for easy understanding, the technical solutions and effects of the present invention will be described in detail below with reference to the accompanying drawings through specific implementation modes.

[0022] As Figure 1 shown, a horizontal extrusion forming production line for a circular thin-walled energy storage battery case includes a horizontally arranged multi-mode extrusion forming unit 1, a shaping, trimming and polishing unit 2, and a cleaning and drying unit 3 arranged in sequence. The cake-shaped raw materials are sequentially formed into the finally formed circular thin-walled energy storage battery case through the horizontal multi-mode extrusion forming unit 1, the shaping, trimming and polishing unit 2, and the cleaning and drying unit 3. Extrusion forming, shaping, trimming and polishing unit 2, and cleaning and drying are necessary production process steps.

[0023] As Figure 2As shown in the figure, the horizontal multi-mode extrusion forming unit 1 is used for extruding and forming disc-shaped raw materials, and includes a horizontal cold extrusion press 11, a flat conveyor 12, a multi-outlet vibrating bowl 13, a bucket type ramp conveyor 14, an extrusion product shape detection CCD 15, a defective product ejection cylinder 16, a defective product conveyor 17, a controller (not shown in the figure), and a control cabinet (not shown in the figure) electrically connected to the controller. The extrusion product shape detection CCD 15 is a commercially available CCD camera and is electrically connected to the controller, and the defective product ejection cylinder 16 is electrically connected to the control cabinet; the extrusion product shape detection CCD 15 and the defective product ejection cylinder 16 are successively installed at the conveying end of the flat conveyor 12, and the defective product ejection cylinder 16 is close to one side of the conveying end of the flat conveyor 12; the defective product conveyor 17 is arranged on the other side of the flat conveyor 12 and corresponds to the defective product ejection cylinder 16. The discharge port of the bucket type ramp conveyor 14 is located above the receiving port of the multi-outlet vibrating bowl 13. The vibrating bowl track 131 of the multi-outlet vibrating bowl 13 is a multi-channel feeding mechanism of the multi-outlet vibrating bowl 13, and there are three outlets in this embodiment. The horizontal cold extrusion press 11 includes a forming bottom die 113, a stripping plate 112, and an extrusion top rod 111. The shape of the extrusion top rod 111 is the same as the shape of the battery case to be formed, and the number of extrusion top rods 111 is the same as the number of outlets of the multi-outlet vibrating bowl 13; the vibrating bowl track 131 is communicated with the forming bottom die 113, and the forming bottom die 113 is provided with receiving positions equal to the number of outlets of the multi-outlet vibrating bowl 13, forming a structure of multi-mode parallel horizontal extrusion forming, and optical fiber sensors are arranged on the receiving positions; the stripping plate 112 is fixed between the forming bottom die 113 and the extrusion top rod 111, and through holes with the same shape as the outer shape of the extrusion top rod 111 are opened on the stripping plate 112; the flat conveyor 12 is arranged between the forming bottom die 113 and the stripping plate 112.

[0024] Manually and disorderly throw the pie-shaped raw material aluminum plate into the bucket-type inclined conveyor 14. After being conveyed by the bucket-type inclined conveyor 14, it is sent into the multi-outlet vibrating disk 13 for orderly discharging. The orderly block materials enter the forming bottom die 113 of the horizontal cold extrusion press 11 through the discharge port of the vibrating disk chute 131. When all the material-in-place detection signals are fed back by the fiber optic sensors at the material receiving position of the forming bottom die 113, the extrusion ejector rod 111 of the horizontal cold extrusion press 11 moves forward to the material receiving position of the forming bottom die 113 for extrusion. After extrusion, the extrusion ejector rod 111 moves backward. The formed battery case moves backward with the extrusion ejector rod 111. When it reaches the stripper plate, the formed battery case is blocked by the stripper plate. The extrusion ejector rod 111 continues to move backward and disengages from the inner cavity of the formed battery case. The formed battery case drops onto the flat conveyor 12 between the forming bottom die 113 and the stripper plate 112. The flat conveyor 12 conveys the extrusion-formed battery case to the subsequent process. When the formed battery case reaches below the extrusion product appearance detection CCD 15, the extrusion product appearance detection CCD 16 takes a photo for detection and transmits the captured information to the controller. The controller compares it with the qualified products pre-set in its system. If the comparison result is a defective product, the information is transmitted to the control cabinet. The control cabinet issues a working instruction to the defective product ejection cylinder 17, and the defective product is ejected onto the defective product conveyor 18 for waiting for manual processing; if the comparison result is a qualified product, it is released and continues to be conveyed to the subsequent process by the flat conveyor 15.

[0025] As Figure 3 shown, the shaping, trimming and polishing unit 2 is used to successively shape, trim and polish the battery case after extrusion forming, including a shaping, trimming and polishing integrated machine 21. The shaping, trimming and polishing integrated machine 21 includes a working platform and a pneumatic material taking gripper 2111 and a battery case step conveyor 219 arranged on the working platform. The battery case step conveyor 219 forms a material transfer connection with the flat conveyor 12 of the horizontal multi-mode extrusion forming unit 1 through the pneumatic material taking gripper 2111. As Figure 6As shown in the figure, the pneumatic material grabbing gripper 2111 includes an X-direction guide rail 21113 and an X-direction cylinder 21112 arranged on the X-direction guide rail 21113, a Z-direction track 21114 and a Z-direction cylinder 21115 arranged on the Z-direction track 21114. The X-direction guide rail 21113 and the Z-direction track 21114 are vertically arranged on the support column 21111. The end of the Z-direction cylinder 21115 is provided with a pneumatic gripper 21116, and the end of the pneumatic gripper 21116 has a pair of oppositely arranged clamping plates 21117. A plurality of battery case pallets are arranged side by side on the battery case step conveyor 219. The upper surface of the battery case pallet is consistent with the outer shape of the battery case after extrusion molding. The battery cases conveyed by the flat conveyor 12 are successively clamped by the clamping plates 21117 driven by the pneumatic gripper 21116 provided at the front end of the pneumatic material grabbing gripper 2111, and then are sent to the battery case pallets on the battery case step conveyor 219 by the driving of the Z-direction cylinder 21115 and the X-direction cylinder 21112. Below the conveying end of the battery case step conveyor 219, there is a good and waste separation chute 2110. There is a discharge port for filtering and trimming the waste materials on the good and waste separation chute 2110, and a waste material box is arranged below the discharge port. The end outlet of the good and waste separation chute 2110 is located above the flat conveyor 12 inside the cleaning and drying unit 3. On the working platform, a shaping station and a trimming station are successively arranged along the battery case step conveyor 219.

[0026] The shaping station includes a battery case shaping position tail-end jacking mechanism 211, a battery case shaping station rotating mechanism 212, a battery case shaping mechanism 213, and a shaping and discharging mechanism 214. The battery case shaping position tail-end jacking mechanism 211 and the battery case shaping station rotating mechanism 212 are oppositely arranged on both sides of the battery case step conveyor 219. The battery case shaping position tail-end jacking mechanism 211 includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected with a jacking rod through a cylindrical bearing. The end of the jacking rod is fixed by the inner ring of the cylindrical bearing. The cylinder extends outwards to push the battery case to be shaped to the rotating end 2122 of the battery case shaping station rotating mechanism 212, and the jacking rod abuts against one end of the battery case to be shaped during shaping, and the jacking rod rotates together with the rotating end 2122. The battery case shaping mechanism 213 is arranged on one side of the rotating end 2122 of the battery case shaping station rotating mechanism 212, and includes a cylinder and a shaping roller arranged at the end of the cylinder. The cylinder extends outwards to approach the battery case, and the shaping roller shapes the battery case while the battery case driven by the battery case shaping station rotating mechanism 212 rotates at a high speed. The shaping and discharging mechanism 214 is arranged on the battery case shaping station rotating mechanism 212, and includes a cylinder 2141 and a push plate 2142 at the end of the cylinder 2141. The push plate is arranged on one side of the rotating end 2122 of the battery case shaping station rotating mechanism 212. The other end of the battery case abuts against the push plate 2142 during shaping. After shaping, the cylinder 2141 extends outwards to push the shaped battery case back onto the battery case pallet.

[0027] The trimming station includes a tail-end jacking mechanism 215 for the battery case trimming position, a rotary mechanism 216 for the battery case trimming station, a trimming mechanism 217 for the battery case, and a trimming and discharging mechanism 218. The tail-end jacking mechanism 215 for the battery case trimming position and the rotary mechanism 216 for the battery case trimming station are arranged oppositely on both sides of the battery case step conveyor 219. The tail-end jacking mechanism 215 for the battery case trimming position includes a support base and a cylinder fixed on the support base. The end of the cylinder is connected with 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 outwards to push the battery case to be trimmed to the rotary end 2122 of the rotary mechanism 216 for the battery case trimming station, and when trimming, the push rod abuts against one end of the battery case to be shaped, and the push rod rotates together with the rotary end 2122; the trimming mechanism 217 for the battery case is arranged on one side of the rotary end 2122 of the rotary mechanism 216 for the battery case trimming station, and includes a cylinder and a trimming roller arranged at the end of the cylinder. The cylinder extends outwards to approach the battery case, and the trimming roller trims the battery case while rotating the battery case driven by the rotary mechanism 216 for the battery case trimming station at a high speed; the trimming and discharging mechanism 218 is arranged on the rotary mechanism 216 for the battery case trimming station, and includes a cylinder 2141 and a push plate 2142 at the end of the cylinder 2141. The push plate 2142 is arranged on one side of the rotary end 2122 of the rotary mechanism 216 for the battery case trimming station. The other end of the battery case abuts against the push plate 2142 when trimming. After trimming, the cylinder 2141 extends outwards to push the trimmed battery case back onto the battery case pallet.

[0028] As Figure 5 shown, the rotary mechanism 212 for the battery case shaping station and the rotary mechanism 216 for the battery case trimming station have the same structure, and both include a motor 2121 and a rotary end 2122 connected to the output end of the motor 2121. The rotary end 2122 is cylindrical and is used to support the battery case. The battery case is sleeved outside the cylindrical rotary end 2122 and rotates together with the rotary end 2122 and the push rod driven by the motor 2121.

[0029] The battery case step conveyor 219 receives the battery cases conveyed by the plane conveyor 12 of the horizontal multi-mode extrusion forming unit 1 picked up by the pneumatic gripper 2111 at the end driven by the two cylinders, namely the X-direction cylinder 21112 and the Z-direction cylinder 21115, on the pneumatic material picking gripper 2111. The battery case step conveyor 219 advances in a step-by-step manner. The material first reaches the shaping station. The cylinder of the battery case shaping position end pushing mechanism 211 holds the end of the battery case. The motor 2121 of the battery case shaping station rotating mechanism 212 rotates, and the battery case rotates rapidly. The cylinder of the battery case shaping mechanism 213 advances, driving the shaping roller close to the rapidly rotating battery case to complete the shaping process. After completion, the cylinder connected to the shaping roller retracts, the cylinder of the battery case shaping position end pushing mechanism 211 retracts, and the cylinder in the shaping discharging mechanism 214 extends to push the shaped battery case onto the battery case step conveyor 219. The battery case step conveyor 219 continues to advance and conveys the shaped battery case to the trimming station. The cylinder of the battery case trimming position end pushing mechanism 215 holds the end of the battery case. The motor 2121 of the battery case trimming station rotating mechanism 216 operates, and the battery case rotates rapidly. The trimming roller is advanced by the cylinder of the battery case trimming mechanism 217 and approaches the rapidly rotating battery case to complete the trimming process. After completion, the cylinder of the battery case trimming mechanism 217 retracts, the cylinder of the battery case trimming position end pushing mechanism 215 retracts, and the cylinder in the trimming discharging mechanism 218 extends to push the trimmed battery case and the trimmed waste edge onto the battery case step conveyor 219. After the battery case step conveyor 219 continues to convey to the conveying end, it is sent to the good-waste separation chute 2110, and the waste enters the waste box; the finished trimmed battery case falls onto the internal plane conveyor of the cleaning and drying unit 3 and continues to be conveyed backward.

[0030] As Figure 4 shown, the cleaning and drying unit 3 is used for cleaning and drying the battery cases, including a commercially available ultrasonic cleaning and drying integrated machine 31, specifically including an ultrasonic cleaner, a cleaning tank, an internal plane conveyor, and a dryer. The ultrasonic cleaner and the dryer are sequentially installed outside the internal plane conveyor, and the end of the good-waste separation chute 2110 is above the conveying starting end of the internal plane conveyor. The battery cases conveyed by the good-waste separation chute 2110 are sequentially conveyed by the internal plane conveyor to the ultrasonic cleaner and the dryer for ultrasonic cleaning and subsequent drying operations, and then the finished round battery cases are transferred out. The automatic transmission of the whole-line materials is composed of a bucket-type inclined conveyor for discharging, a plane conveyor 12, a bucket-type inclined conveyor 14, and a multi-outlet vibrating disk 13, and the process is unmanned.

[0031] The working principle and working process of the above-mentioned horizontal extrusion forming production line for round thin-walled energy storage battery cases are as follows:

[0032] The raw aluminum plates in the form of cakes are manually thrown into the bucket-type slope conveyor 14 in a disorderly manner, and are transported to the multi-outlet vibration plate 13 by the bucket-type slope conveyor 14 for orderly discharge. The orderly blocks enter the forming bottom die 113 of the horizontal cold extrusion press 11 through the discharge port of the vibration plate material channel 131. When all the receiving positions of the forming bottom die 113 are fed back by the optical fiber sensor with all the material in place detection signals, the extrusion push rod 111 of the horizontal cold extrusion press 11 moves forward to the receiving position of the forming bottom die 113 for extrusion. After the extrusion is completed, the extrusion push rod 111 moves backward, and the formed battery shell moves backward with the extrusion push rod 111. When it reaches the stripping plate, the formed battery shell is blocked by the stripping plate. The extrusion push rod 111 continues to move backward to leave the inner cavity of the formed battery shell, and the formed battery shell falls onto the plane conveyor 12 between the forming bottom die 113 and the stripping plate 112. The plane conveyor 12 continues to transfer the extruded battery shell to the subsequent sequence. When the formed battery shell reaches the extrusion product appearance detection CCD 15, the CCD 16 for detecting the shape of the extruded product takes a picture for detection and transmits the photographed information to the controller, which compares it with the qualified products pre-set in its system. If the comparison result is a defective product, the information is transmitted to the control cabinet, and the control cabinet issues a work instruction to the defective product pushing cylinder 17, which pushes the defective product onto the defective product conveyor 18 and waits for manual processing; if the comparison result is a good product, it is released and continues to be conveyed to the subsequent sequence by the plane conveyor 15. The battery shell stepping conveyor 219 receives the battery shell conveyed by the flat conveyor 12 of the horizontal multi-mode extrusion molding unit 1, which is picked up by the pneumatic grippers at the end driven by the two cylinders in the X and Z directions on the pneumatic material picking gripper 2111. The battery shell stepping conveyor 219 advances in a stepping manner, and the material first reaches the shaping station. The tail end of the battery shell is supported by the cylinder of the battery shell shaping position tail end jacking mechanism 211, and the motor 2121 of the battery shell shaping station rotating mechanism 212 rotates, and the battery shell rotates rapidly. The cylinder of the battery shell shaping mechanism 213 is pushed 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 jacking mechanism 211 retreats, and the cylinder in the shaping material return mechanism 214 extends to push the shaped battery shell onto the battery shell stepping conveyor 219. The battery shell stepping conveyor 219 continues to move forward and conveys the shaped battery shell to the trimming station. The tail end of the battery shell is supported by the cylinder in the battery shell trimming position tail end jacking mechanism 215, and the motor 2121 of the battery shell trimming position rotating mechanism 216 works, the battery shell rotates rapidly, and the trimming roller is pushed by the cylinder of the battery shell trimming mechanism 217, and the trimming process is completed close to the high-speed rotating battery shell; after completion, the cylinder of the battery shell trimming mechanism 217 is retracted, the cylinder in the battery shell trimming position tail end jacking mechanism 215 retreats, and the cylinder in the trimming material return mechanism 218 extends, pushing the trimmed battery shell and the trimmed waste edge to the battery shell stepping conveyor 219.After the battery case step conveyor 219 continues to convey to the end of the conveyor, it is sent to the good and waste separation chute 2110, and the waste enters the waste bin; the battery cases transferred by the good and waste separation chute 2110 are sequentially conveyed to the ultrasonic cleaner and the dryer by the internal flat conveyor for ultrasonic cleaning and subsequent drying operations, and then the finished round battery cases are transferred out.

Claims

1. A horizontal extrusion forming production line for a circular thin-walled energy storage battery case, characterized in that: It includes a horizontal multi-mode extrusion forming unit, a shaping, trimming and polishing unit, and a cleaning and drying unit arranged in sequence. The horizontal multi-mode extrusion forming unit includes a horizontal cold extrusion press, a planar conveyor, a multi-outlet vibrating bowl, a bucket-type ramp conveyor, an extrusion product appearance detection CCD, a defective product ejection cylinder, a defective product conveyor, a controller, and a control cabinet electrically connected to the controller. The extrusion product appearance detection is electrically connected to the controller, and the defective product ejection cylinder is electrically connected to the control cabinet. The extrusion product appearance detection CCD and the defective product ejection cylinder are sequentially installed at the conveying end of the planar conveyor, and the defective product ejection cylinder is close to one side of the conveying end of the planar conveyor. The defective product conveyor is arranged on the other side of the planar conveyor and corresponds to the defective product ejection cylinder. The discharge port of the bucket-type ramp conveyor is located above the receiving port of the multi-outlet vibrating bowl. The horizontal cold extrusion press includes a forming bottom die, a stripping plate, and an extrusion top rod. The shape of the extrusion top rod is the same as the shape of the battery case to be formed, and the number of extrusion top rods is the same as the number of outlets of the multi-outlet vibrating bowl. The vibrating bowl chute is connected to the forming bottom die, and the forming bottom die is provided with receiving positions equal to the number of outlets of the multi-outlet vibrating bowl, and fiber optic sensors are arranged on the receiving positions. The stripping plate is fixed between the forming bottom die and the extrusion top rod, and through holes with the same shape as the outer shape of the extrusion top rod are opened on the stripping plate. The planar conveyor is arranged between the forming bottom die and the stripping plate. The shaping, trimming and polishing unit includes a shaping, trimming and polishing integrated machine, which includes a working platform, a pneumatic material grabbing gripper and a battery case step conveyor arranged on the working platform. The battery case step conveyor and the planar conveyor of the horizontal multi-mode extrusion forming unit are connected by a pneumatic material grabbing gripper to form a material transfer connection. A plurality of battery case pallets are arranged side by side on the battery case step conveyor. A good-waste separation chute is arranged below the conveying end of the battery case step conveyor, and a waste box is arranged below the discharge port. The end outlet of the good-waste separation chute is located above the internal planar conveyor of the cleaning and drying unit. On the working platform, a shaping station and a trimming station are sequentially arranged along the battery case step conveyor. The upper surface of the battery case pallet is consistent with the outer shape of the extruded battery case. The good-waste separation chute has a discharge port for filtering and trimming the lower waste.

2. The horizontal extrusion forming production line for a circular thin-walled energy storage battery case according to claim 1, characterized in that: The multi-outlet vibrating bowl has three outlets.

3. A horizontal extrusion forming production line for a circular thin-walled energy storage battery case according to claim 1, characterized in that: The shaping station includes a tail-end jacking mechanism for the battery case shaping position, a rotating mechanism for the battery case shaping station, a battery case shaping mechanism, and a shaping unloading mechanism. The tail-end jacking mechanism for the battery case shaping position and the rotating mechanism for the battery case shaping station are arranged opposite to each other on both sides of the battery case step conveyor. The tail-end jacking mechanism for the battery case shaping position includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected to a top rod through a cylindrical bearing, and the end of the top rod is fixed by the inner ring of the cylindrical bearing. The battery case shaping mechanism is arranged on one side of the rotating end of the rotating mechanism for the battery case shaping station and includes a cylinder and a shaping roller arranged at the end of the cylinder. The shaping unloading mechanism is arranged on the rotating mechanism for the battery case shaping station and includes a cylinder and a push plate at the end of the cylinder. The push plate is arranged on one side of the rotating end of the rotating mechanism for the battery case shaping station.

4. A horizontal extrusion forming production line for a circular thin-walled energy storage battery case according to claim 1, characterized in that: The trimming station includes a tail-end jacking mechanism for the battery case trimming position, a rotating mechanism for the battery case trimming station, a battery case trimming mechanism, and a trimming and discharging mechanism. The tail-end jacking mechanism for the battery case trimming position and the rotating mechanism for the battery case trimming station are arranged oppositely on both sides of the battery case step conveyor. The tail-end jacking mechanism for the battery case trimming position includes a support seat and a cylinder fixed on the support seat. The end of the cylinder is connected with a jacking rod through a cylindrical bearing, and the end of the jacking rod is fixed by the inner ring of the cylindrical bearing. The battery case trimming mechanism is arranged on one side of the rotating end of the rotating mechanism for the battery case trimming station and includes a cylinder and a trimming roller arranged at the end of the cylinder. The trimming and discharging mechanism is arranged on the rotating mechanism for the battery case trimming station and includes a cylinder and a push plate at the end of the cylinder. The push plate is arranged on one side of the rotating end of the rotating mechanism for the battery case trimming station.

5. A horizontal extrusion forming production line for a circular thin-walled energy storage battery case 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 cleaner, a cleaning tank, an internal flat conveyor, and a dryer. The ultrasonic cleaner and the dryer are sequentially installed outside the internal flat conveyor, and the end of the good-bad separation slideway is above the starting end of the internal flat conveyor.

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