A battery heat shrink film packaging apparatus

Abstract

The application discloses a kind of battery heat shrink film packaging equipment, including transmission mechanism, battery operation device, ultrasonic welding mechanism and heat shrink film feeding device, transmission mechanism is equipped with transmission channel, battery operation device and ultrasonic welding mechanism are all through transmission channel and transmission mechanism docking, in the transmission mechanism transport direction, battery operation device is prior to ultrasonic welding mechanism setting, heat shrink film feeding device is located at the rear of battery operation device and transmission mechanism docking starting place, heat shrink film feeding device is through transmission channel and transmission mechanism docking, battery is docked to the transmission channel of transmission mechanism by battery operation device, battery is wrapped at heat shrink film feeding device and transmission channel, again by transmission mechanism transport to ultrasonic welding mechanism place, the packaging equipment can use continuous heat shrink film to wrap, seal, improve the packaging speed of scattered battery to scattered battery, and save production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of battery production and manufacturing, in particular to a battery heat-shrinkable film packaging equipment. BACKGROUND

[0002] After the battery production is completed, the scattered batteries need to be packaged by a battery heat-shrinkable film packaging machine. The battery heat-shrinkable film packaging machine is a machine that packages scattered batteries into a shrinkable battery by using heat-shrinkable film. The heat-shrinkable film is tightly wrapped on the battery when it shrinks due to heat. The heat-shrinkable film is generally made of PET material. The traditional packaging film is a thin film bag. The packaging process is to put the battery into the ready-made thin film packaging bag and then directly heat-shrink and package. This method requires the purchase of finished thin film packaging bags, which has a high material cost. Moreover, the traditional production line has a slow speed and low efficiency in putting the battery into the thin film packaging bag. Generally, it can only complete 100-150 pieces of packaging per minute, which cannot meet the production capacity requirements of the existing battery production line. SUMMARY

[0003] The present application provides a battery heat-shrinkable film packaging equipment that can directly use continuous film to package batteries, thereby improving the packaging speed of the production line and saving costs.

[0004] Technical scheme: A battery heat-shrinkable film packaging equipment includes a transmission mechanism, a battery running device, an ultrasonic welding mechanism, and a heat-shrinkable film feeding device. The transmission mechanism is provided with a transmission channel. The battery running device and the ultrasonic welding mechanism are connected through the transmission channel and the transmission mechanism. In the transmission direction of the transmission mechanism, the battery running device is arranged before the ultrasonic welding mechanism. The heat-shrinkable film feeding device is arranged behind the starting point of the connection between the battery running device and the transmission mechanism. The heat-shrinkable film feeding device is connected through the transmission channel and the transmission mechanism. The battery is connected to the transmission channel of the transmission mechanism through the battery running device. The battery is wrapped at the heat-shrinkable film feeding device and the transmission channel, and then transported to the ultrasonic welding mechanism by the transmission mechanism.

[0005] Further, the transmission mechanism includes an upper pressing strip, a lower pressing strip, an upper synchronous belt, a lower synchronous belt, and a synchronous driving device. The upper pressing strip is arranged above the lower pressing strip. The upper synchronous belt is arranged on the inner side of the upper pressing strip. The lower synchronous belt is arranged on the inner side of the lower pressing strip. The upper synchronous belt and the lower synchronous belt are arranged in a rotating manner. The transmission channel is formed between the upper synchronous belt and the lower synchronous belt. The upper synchronous belt and the lower synchronous belt are driven to rotate synchronously by the synchronous driving device.

[0006] Further, the upper pressing strip is vertically provided with a plurality of spring devices on the outer side, which improves the clamping force of the upper and lower synchronous belts, and makes the transported packaged batteries more secure.

[0007] Further, the battery transportation device comprises a battery supporting plate device, a front chain device, a rear chain device, a guide groove, a positioning block and a pin shaft structure, the front chain device and the rear chain device are arranged in parallel along the direction of the transmission mechanism, the front chain device and the rear chain device are connected by a plurality of pin shaft structures, the guide groove is arranged below the pin shaft structures between the front chain device and the rear chain device, one pin shaft structure is provided with one battery supporting plate device, the working ends of a plurality of battery supporting plate devices are connected to the transmission channel and the transmission mechanism, one battery supporting plate device is provided with one positioning block, and the lower ends of a plurality of positioning blocks are located in the guide groove.

[0008] Further, the ultrasonic welding mechanism comprises a welding workbench, an upper pressing edge wheel mechanism, a lower pressing edge wheel mechanism, a cutting edge wheel mechanism, a power mechanism and an ultrasonic welding gun, the upper pressing edge wheel mechanism and the lower pressing edge wheel mechanism are arranged in the welding workbench, the upper pressing edge wheel mechanism is arranged above the lower pressing edge wheel mechanism, the upper pressing edge wheel mechanism and the lower pressing edge wheel mechanism are connected in contact to form an extrusion channel, the cutting edge wheel mechanism is arranged behind the extrusion channel, the upper pressing edge wheel mechanism, the lower pressing edge wheel mechanism and the cutting edge wheel mechanism are driven to rotate synchronously by the power mechanism, the ultrasonic welding gun is arranged at the working end of the cutting edge wheel mechanism, the working end of the cutting edge wheel mechanism and the ultrasonic welding gun are connected in contact to form a cutting edge channel, and the extrusion channel and the cutting edge channel are connected to the transmission channel.

[0009] Further, the upper pressing edge wheel mechanism comprises an upper pressing wheel, an upper transmission gear device, an upper rotating shaft and an upper shaft sleeve, the upper rotating shaft is respectively sleeved with the upper shaft sleeve in the front-rear direction, the upper shaft sleeve is tightly connected with the welding workbench, the upper pressing wheel is arranged at the front end of the upper rotating shaft and is tightly connected therewith, the upper transmission gear device is arranged at the middle of the upper rotating shaft and is tightly connected therewith, and the rear end of the upper rotating shaft is provided with the power mechanism, the lower pressing edge wheel mechanism comprises a lower pressing wheel, a lower transmission gear, a lower rotating shaft and a lower shaft sleeve, the lower rotating shaft is respectively sleeved with the lower shaft sleeve in the front-rear direction, the lower shaft sleeve is tightly connected with the welding workbench, the lower pressing wheel is arranged at the front end of the lower rotating shaft and is tightly connected therewith, the upper pressing wheel and the lower pressing wheel are connected in contact to form the extrusion channel, the lower transmission gear is arranged at the middle of the lower rotating shaft and is tightly connected therewith, and the upper transmission gear device and the lower transmission gear are connected through gear transmission.

[0010] Further, the upper transmission gear device comprises an upper rotating gear, an adjusting gear and an adjusting screw, the adjusting gear and the upper rotating gear are concentrically arranged, the adjusting gear is arranged on the upper rotating gear through the adjusting screw, and the upper rotating gear and the adjusting gear are in transmission connection with the lower transmission gear, so that the transmission efficiency is improved by adjusting the matching degree between the upper transmission gear device and the lower transmission gear.

[0011] Further, the lower shaft sleeve is provided with a compression spring mechanism, the compression spring mechanism is vertically arranged below the lower shaft sleeve, and the compression spring mechanism improves the clamping force of the upper pressure edge wheel mechanism and the lower pressure edge wheel mechanism, so that the hot shrinkable film entering the extrusion channel is extruded and fixed.

[0012] Further, the edge cutting wheel mechanism comprises a tension spring, a limiting device, a rocker, a rocker shaft sleeve, a rotating edge cutting wheel and an edge cutting wheel transmission synchronous wheel, the rocker is arranged on the upper rotating shaft through the rocker shaft sleeve, the rotating edge cutting wheel is arranged on the front end of the rocker, the rotating edge cutting wheel is arranged behind the extrusion channel, the ultrasonic welding gun is in contact connection below the rotating edge cutting wheel to form the edge cutting channel, the tension spring and the limiting device are arranged above the rear end of the rocker, the tension spring is vertically arranged above the rocker, one end of the tension spring is connected with the rocker, the other end is connected with the welding workbench, the limiting device is in contact connection with the rocker, the edge cutting wheel is arranged on the upper pressure wheel, the edge cutting wheel transmission synchronous wheel and the upper pressure wheel are concentrically arranged, the rotating edge cutting wheel and the edge cutting wheel transmission synchronous wheel are in transmission connection, and the limiting device is provided with the pneumatic rod device, and the working end of the pneumatic rod device is arranged above the rocker.

[0013] Further, the hot shrinkable film feeding device comprises a roller device and a guide plate, the roller device is arranged on the opposite side of the battery operation device on one side of the transmission mechanism, and the guide plate is embedded in the transmission mechanism behind the butt joint starting position of the battery operation device and the transmission mechanism.

[0014] Advantages: the packaging equipment can use continuous hot shrinkable film to wrap and seal scattered batteries, the packaging speed of the scattered batteries is improved, the production cost is saved, the clamping force of the transmission mechanism on the packaged batteries is improved through the spring device, the hot shrinkable film wrapped on the batteries is not separated, the working efficiency is improved, the clamping force of the upper pressure edge wheel mechanism and the lower pressure edge wheel mechanism is improved through the compression spring mechanism, and the extrusion and fixing effect of the hot shrinkable film entering the extrusion channel is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the packaging equipment.

[0016] Figure 2 This is a top view of the packaging equipment;

[0017] Figure 3 for Figure 1 Schematic diagram of the AA section;

[0018] Figure 4 for Figure 1 Schematic diagram of the BB cross section

[0019] Figure 5 A frontal view of an ultrasonic welding mechanism;

[0020] Figure 6 A top view of the ultrasonic welding mechanism;

[0021] Figure 7 This is a schematic diagram of the combination of the upper and lower pressure wheel mechanisms;

[0022] Figure 8 for Figure 1 Schematic diagram C (partially enlarged);

[0023] Figure 9 for Figure 2 Enlarged view of part D;

[0024] Figure 10 for Figure 5 Schematic diagram of the EE cross section. Detailed Implementation

[0025] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0026] A packaging device for battery heat shrink film, such as Figures 1-2 As shown, the device includes a transmission mechanism 1, a battery operating device 2, an ultrasonic welding mechanism 3, and a heat-shrink film feeding device 4. The transmission mechanism 1 is equipped with a transmission channel 16. Both the battery operating device 2 and the ultrasonic welding mechanism 3 are connected to the transmission mechanism 1 through the transmission channel 16. In the transport direction of the transmission mechanism 1, the battery operating device 2 is set before the ultrasonic welding mechanism 3. This can be understood as the battery first passing through the battery operating device 2 and then being transported to the ultrasonic welding mechanism 3 for heat-shrink film compression and cutting. The heat-shrink film feeding device 4 is located behind the starting point of the connection between the battery operating device 2 and the transmission mechanism 1. The heat-shrink film feeding device 4 is connected to the transmission mechanism 1 through the transmission channel 16. The packaging process involves the battery from the previous process being connected to the transmission channel 16 of the transmission mechanism 1 through the battery operating device 2. The battery is wrapped at the heat-shrink film feeding device 4 and the transmission channel 16, and then transported by the transmission mechanism 1 to the ultrasonic welding mechanism 3 for compression and cutting.

[0027] like Figures 3-10As shown, the transmission mechanism 1 includes an upper pressing strip 11, a lower pressing strip 12, an upper synchronous belt 13, a lower synchronous belt 14 and a synchronous driving device 15, the upper synchronous belt 13 and the lower synchronous belt 14 are arranged in rotation, the upper pressing strip 11 is arranged above the lower pressing strip 12, the upper synchronous belt 13 is arranged on the inner side of the upper pressing strip 11, the lower synchronous belt 14 is arranged on the inner side of the lower pressing strip 12, the upper pressing strip 11 is the carrier of the rotation movement of the upper synchronous belt 13, the upper synchronous belt 13 rotates on the inner side of the upper pressing strip 11, the lower pressing strip 12 is the carrier of the rotation movement of the lower synchronous belt 14, the lower synchronous belt 14 rotates on the inner side of the lower pressing strip 12, the transmission channel 16 is formed between the upper synchronous belt 13 and the lower synchronous belt 14, the battery is transmitted in the transmission channel 16, the upper synchronous belt 13 and the lower synchronous belt 14 are driven to rotate synchronously by the synchronous driving device 15, and the synchronous rotation is to improve the transportation efficiency and prevent the upper synchronous belt 13 and the lower synchronous belt 14 from affecting the conveying efficiency or twisting the heat-shrinkable film to make the package fall down due to different rotation speeds. The upper pressing strip 11 is provided with a plurality of spring devices 111 above, the spring devices 111 have a pressing effect on the upper pressing strip 11 above, increase the clamping force between the upper synchronous belt 13 and the lower synchronous belt 14, and press and fix the packaged battery to prevent loosening and affect the packaging effect.

[0028] The battery running device 2 includes a battery tray device 21, a front chain device 22, a rear chain device 23, a guide groove 24, a positioning block 25 and a pin shaft structure 26, the front chain device 22 and the rear chain device 23 are arranged in parallel along the direction of the transmission mechanism 1, a plurality of pin shaft structures 26 are arranged between the front chain device 22 and the rear chain device 23, the pin shaft structures 26 connect the front chain device 22 and the rear chain device 23, the guide groove 24 is arranged below the plurality of pin shaft structures 26 between the front chain device 22 and the rear chain device 23, and the guide groove 24 is arranged in a "concave" shape in a direction perpendicular to the transmission mechanism 1. It can be understood that the two ends of the guide groove 24 are away from the transmission mechanism 1, and the middle of the guide groove 24 is close to the transmission mechanism 1. One battery tray device 21 is arranged on one pin shaft structure 26, the battery tray device 21 is a carrier for loading batteries, and the battery is transported to the transmission mechanism 1 through the battery tray device 21 in the previous process. The working ends of a plurality of battery tray devices 21 are connected to the transmission mechanism 1 through the transmission channel 16. One battery tray device 21 is provided with one positioning block 25, one positioning block 25 is tightly connected with one tray device, and the lower ends of a plurality of positioning blocks 25 are located in the guide groove 24. The specific working mode is that when the battery in the previous process enters the battery tray device 21, the battery slowly approaches the transmission mechanism under the guidance of the guide groove 24 and is connected to enter the transmission channel 16 of the transmission mechanism 1 along with the rotation of the front chain device 22 and the rear chain device 23.

[0029] The ultrasonic welding mechanism 3 comprises a welding workbench 31, an upper edge wheel mechanism 32, a lower edge wheel mechanism 33, a cutting edge wheel mechanism 34, a power mechanism 35 and an ultrasonic welding gun 36. The upper edge wheel mechanism 32 and the lower edge wheel mechanism 33 are both arranged in the welding workbench 31. The upper edge wheel mechanism 32 is arranged directly above the lower edge wheel mechanism 33. The upper edge wheel mechanism 32 and the lower edge wheel mechanism 33 are in contact with each other. An extrusion channel 37 is formed between the upper edge wheel mechanism 32 and the lower edge wheel mechanism 33. The packaged battery passes through the extrusion channel 37 between the upper edge wheel mechanism 32 and the lower edge wheel mechanism 33. When passing through, the excess heat-shrinkable film is extruded and sealed by the upper edge wheel mechanism 32 and the lower edge wheel mechanism 33. The cutting edge wheel mechanism 34 is arranged behind the extrusion channel 37. After the battery is extruded and sealed by the upper edge wheel mechanism 32 and the lower edge wheel mechanism 33, it is then transmitted to the cutting edge wheel mechanism 34. The upper edge wheel mechanism 32, the lower edge wheel mechanism 33 and the cutting edge wheel mechanism 34 are driven to rotate synchronously by the power mechanism 35. The synchronous rotation is to make them have a certain rotational relationship. The steps of extruding and sealing the packaged battery and cutting off the excess heat-shrinkable film are consistent in working speed. The ultrasonic welding gun 36 is arranged at the working end of the cutting edge wheel mechanism 34. The working end of the cutting edge wheel mechanism 34 and the ultrasonic welding gun 36 are in contact with each other. It can be understood that an edge cutting channel 38 is formed between the working end of the cutting edge wheel mechanism 34 and the ultrasonic welding gun 36. The extrusion channel 37 and the edge cutting channel 38 are both in butt joint with the transmission channel 16. That is, the excess part of the packaged battery in the transmission channel 16 can be extruded and fixed in the extrusion channel 37 first and then cut off in the edge cutting channel 38.

[0030] The upper pinch roller mechanism 32 comprises an upper pinch roller 321, an upper transmission gear device 322, an upper rotating shaft 323, an upper shaft sleeve 324, the upper rotating shaft 323 is sleeved with the upper shaft sleeve 324 in the front-rear direction, that is, the upper rotating shaft 323 can rotate in the upper shaft sleeve 324, the upper shaft sleeve 324 is tightly connected with the welding workbench 31, the upper pinch roller 321 is arranged at the front end of the upper rotating shaft 323, the upper pinch roller 321 and the upper rotating shaft 323 are tightly connected, the tight connection means that the upper pinch roller 321 and the upper rotating shaft 323 are fixedly arranged through external components, the upper transmission gear device 322 is arranged in the middle of the upper rotating shaft 323, the upper transmission gear device 322 and the upper rotating shaft 323 are tightly connected, the rear end of the upper rotating shaft 323 is provided with a power mechanism 35, the power mechanism 35 is a power source of the upper rotating shaft 323, the power mechanism 35 drives the upper rotating shaft 323 to rotate, the lower pinch roller mechanism 33 comprises a lower pinch roller 331, a lower transmission gear 332, a lower rotating shaft 333, and a lower shaft sleeve 334, the lower rotating shaft 333 is sleeved with the lower shaft sleeve 334 in the front-rear direction, the lower shaft sleeve 334 is tightly connected with the welding workbench 31, that is, the lower rotating shaft 333 rotates in the lower shaft sleeve 334, the lower pinch roller 331 is arranged at the front end of the lower rotating shaft 333 and is tightly connected therewith, the lower transmission gear 332 is arranged in the middle of the lower rotating shaft 333 and is tightly connected therewith, the upper pinch roller 321 and the lower pinch roller 331 are in contact, an extrusion channel 37 is formed between the upper pinch roller 321 and the lower pinch roller 331, a battery package passes through the extrusion channel 37, the battery package can pass between the upper pinch roller 321 and the lower pinch roller 331 and is thus extruded and fixed, the upper pinch roller 321 and the lower pinch roller 331 are both provided with gear structures in the circumferential direction, the upper pinch roller 321 and the lower pinch roller 331 are engaged with each other through the gear structures, the purpose is to fold and extrude the passing battery package to make the extruded battery package more firm, the upper transmission gear device 322 and the lower transmission gear 332 are connected through gear transmission, that is, the upper pinch roller mechanism 32 and the lower pinch roller mechanism 33 can rotate synchronously, the lower shaft sleeve 334 on the front side of the lower rotating shaft 333 is provided with a compression spring mechanism 338, the compression spring mechanism 338 is vertically arranged below the lower shaft sleeve 334, the compression spring mechanism 338 has an elastic supporting effect on the lower shaft sleeve 334, which can have a mutual extrusion force between the upper pinch roller mechanism 32 and the lower pinch roller mechanism 33, so as to maintain a certain pressing force therebetween and improve the extrusion effect on the battery package.

[0031] The upper transmission gear device 322 comprises an upper rotating gear 335, an adjusting gear 336, and an adjusting screw 337. The adjusting gear 336 and the upper rotating gear 335 are concentrically arranged, and the adjusting gear 336 is arranged on the upper rotating gear 335 through the adjusting screw 337. The upper rotating gear 335 and the adjusting gear 336 are both in transmission connection with the lower transmission gear 332. It can be understood that the upper rotating gear 335 and the adjusting gear 336 are the same size and concentrically arranged, and the upper rotating gear 335 and the adjusting gear 336 are simultaneously in transmission connection with the lower transmission gear 332. The specific use mode is that, after the upper rotating gear 335 and the lower transmission gear 332 are connected through gear transmission, because of installation errors or matching tolerances, there is a matching gap between the gears, so that they cannot be completely matched. At this time, the angle between the adjusting gear 336 and the upper rotating gear 335 is controlled through the rotating adjusting screw 337, so as to eliminate the gap between the upper transmission gear device 322 and the lower transmission gear 332, improve the matching degree, and improve the transmission efficiency.

[0032] The trimming wheel mechanism 34 comprises a tension spring 341, a limiting device 342, a rocker arm 343, a rocker arm shaft sleeve 344, a rotating trimming wheel 345, and a trimming wheel transmission synchronizing wheel 346. The rocker arm shaft sleeve 344 is arranged on the upper rotating shaft 323. The rocker arm 343 is arranged on the rocker arm shaft sleeve 344, that is, the rocker arm 343 is arranged on the upper rotating shaft 323 through the rocker arm shaft sleeve 344. The rocker arm 343 can rotate around the upper rotating shaft 323. The rotating trimming wheel 345 is arranged at the front end of the rocker arm 343 and behind the extrusion channel 37. The ultrasonic welding gun 36 is arranged below and in contact with the rotating trimming wheel 345. After the contact, a trimming channel 38 is formed. The battery package after the previous process passes through the trimming channel 38 between the ultrasonic welding gun 36 and the rotating trimming wheel 345 to be trimmed of excess edges. The tension spring 341 and the limiting device 342 are arranged above the rear end of the rocker arm 343. The tension spring 341 is arranged vertically above the rocker arm 343. One end of the tension spring 341 is connected with the rocker arm 343, and the other end is connected with the welding workbench 31. The limiting device 342 is in contact with the rocker arm 343. The cooperation of the tension spring 341 and the limiting device 342 keeps the front end of the rocker arm 343 at a certain downward pressure, so that the battery package passing through the rotating trimming wheel 345 and the ultrasonic welding gun 36 is more easily trimmed of excess edges. The trimming wheel transmission synchronizing wheel 346 is arranged on the upper pressing wheel 321 and concentrically with the upper pressing wheel 321. The rotating trimming wheel 345 and the trimming wheel transmission synchronizing wheel 346 are in transmission connection. It can be understood that the upper pressing wheel 321 drives the rotating trimming wheel 345 to rotate synchronously through the trimming wheel transmission synchronizing wheel 346, so that the rotating trimming wheel 345 can complete the work faster and better. The pneumatic rod device 347 is arranged on the limiting device 342 and arranged above the rocker arm 343. The working end of the pneumatic rod device 347 is arranged above the rocker arm 343. The pneumatic rod device 347 is used to press the rocker arm 343 downward when the packaging equipment is started, so that the front end of the rocker arm 343 is separated from the ultrasonic welding gun 36. The packaged battery is first allowed to enter between the rotating trimming wheel 345 and the ultrasonic welding gun 36, and then the front end of the rocker arm 343 is combined with the ultrasonic welding gun 36 to be fixed, thereby saving labor and facilitating operation.

[0033] The heat shrink film feeding device 22 comprises a roller device 41 and a guide plate 42. The roller device 41 is arranged on the opposite side of the battery operation device 2 relative to the conveying mechanism 1, that is, the battery operation device 2 and the roller device 41 are arranged on both sides of the conveying mechanism 1. The guide plate 42 is embedded in the conveying mechanism 1 from the side of the conveying mechanism 1 and behind the abutting starting point of the battery operation device 2 and the conveying mechanism 1. The guide plate 42 is a U-shaped groove plate. The guide plate 42 is embedded in the conveying channel 16 from the side of the conveying channel 16. The guide plate 42 guides the heat shrink film to gradually shrink and then enter the conveying channel 16 to cover and wrap the battery. The continuous heat shrink film passes through the roller device 41 and then is guided by the guide plate 42 to package the battery on the conveying mechanism 1. The battery passes through the guide plate 42 and can be wrapped by the heat shrink film in the guide plate 42.

[0034] The working mode of the packaging device is that the scattered batteries after the previous process enter the battery supporting plate device 21 of the wrapping device 21. The battery supporting plate device 21 rotates with the front chain device 22 and the rear chain device 23. The batteries guided by the guide groove 24 gradually approach the conveying mechanism 1 and abut into the conveying channel 16 during the movement of the supporting plate device. After abutting into the conveying channel 16, the heat shrink film is guided by the guide plate 42 of the heat shrink film feeding device 22. The battery will be covered and wrapped by the heat shrink film. The wrapped battery is clamped and transported in the conveying channel 16. When transported to the working area of the ultrasonic welding mechanism 3, the packaged battery is first compressed and fixed in the ultrasonic welding mechanism 3, and then the excess mechanism is cut off by the ultrasonic welding mechanism 3 to complete the packaging, and then is transported to the next process for heat shrinkage.

Claims

1. A packaging device for battery heat-shrink film, characterized in that, The system includes a transmission mechanism (1), a battery operating device (2), an ultrasonic welding mechanism (3), and a heat shrink film feeding device (4). The transmission mechanism (1) is provided with a transmission channel (16). The battery operating device (2) and the ultrasonic welding mechanism (3) are both connected to the transmission mechanism (1) through the transmission channel (16). In the transportation direction of the transmission mechanism (1), the battery operating device (2) is set before the ultrasonic welding mechanism (3). The heat shrink film feeding device (4) is located behind the starting point of the connection between the battery operating device (2) and the transmission mechanism (1). The heat shrink film feeding device (4) is connected to the transmission mechanism (1) through the transmission channel (16). The battery is connected to the transmission channel (16) of the transmission mechanism (1) through the battery operating device (2). The battery is wrapped at the heat shrink film feeding device (4) and the transmission channel (16) and then transported by the transmission mechanism (1) to the ultrasonic welding mechanism (3). The transmission mechanism (1) includes an upper pressure bar (11), a lower pressure bar (12), an upper synchronous belt (13), a lower synchronous belt (14), and a synchronous drive device (15). The upper pressure bar (11) is located above the lower pressure bar (12). The upper synchronous belt (13) is located on the inner side of the upper pressure bar (11), and the lower synchronous belt (14) is located on the inner side of the lower pressure bar (12). The upper synchronous belt (13) and the lower synchronous belt (14) are respectively rotated. The transmission channel (16) is formed between the upper synchronous belt (13) and the lower synchronous belt (14). The upper synchronous belt (13) and the lower synchronous belt (14) are driven to rotate synchronously by the synchronous drive device (15). Several spring devices (111) are vertically arranged on the outer side of the upper pressure bar (11).

2. A battery heat-shrink film packaging device according to claim 1, characterized in that, The battery operating device (2) includes a battery tray device (21), a front chain device (22), a rear chain device (23), a guide groove (24), a positioning block (25), and a pin structure (26). The front chain device (22) and the rear chain device (23) are arranged parallel to each other along the direction of the transmission mechanism (1). The front chain device (22) and the rear chain device (23) are connected by a plurality of the pin structures (26). The guide groove (24) is located on the front chain tray device (21). Below a plurality of pin structures (26) between the chain device (22) and the rear chain device (23), a battery tray device (21) is provided on one of the pin structures (26). The working ends of the plurality of battery tray devices (21) are connected to the transmission mechanism (1) through the transmission channel (16). A positioning block (25) is provided on one of the battery tray devices (21). The lower ends of the plurality of positioning blocks (25) are all located in the guide groove (24).

3. A battery heat-shrink film packaging device according to claim 1, characterized in that, The ultrasonic welding mechanism (3) includes a welding worktable (31), an upper pressure wheel mechanism (32), a lower pressure wheel mechanism (33), a cutting wheel mechanism (34), a power mechanism (35), and an ultrasonic welding gun (36). The upper pressure wheel mechanism (32) and the lower pressure wheel mechanism (33) are both located inside the welding worktable (31). The upper pressure wheel mechanism (32) is located directly above the lower pressure wheel mechanism (33). The upper pressure wheel mechanism (32) and the lower pressure wheel mechanism (33) are connected in contact to form an extrusion channel (37). The edge-cutting wheel mechanism (34) is located behind the extrusion channel (37). The upper edge-pressing wheel mechanism (32), the lower edge-pressing wheel mechanism (33), and the edge-cutting wheel mechanism (34) are driven to rotate synchronously by the power mechanism (35). The ultrasonic welding gun (36) is located at the working end of the edge-cutting wheel mechanism (34). The working end of the edge-cutting wheel mechanism (34) and the ultrasonic welding gun (36) are connected to form an edge-cutting channel (38). Both the extrusion channel (37) and the edge-cutting channel (38) are connected to the transmission channel (16).

4. A battery heat-shrink film packaging device according to claim 3, characterized in that, The upper pressure wheel mechanism (32) includes an upper pressure wheel (321), an upper transmission gear device (322), an upper rotating shaft (323), and an upper bushing (324). The upper rotating shaft (323) is fitted with the upper bushing (324) in the front and rear directions, and the upper bushing (324) is fastened to the welding worktable (31). The upper pressure wheel (321) is located at the front end of the upper rotating shaft (323) and fastened thereto. The upper transmission gear device (322) is located in the middle of the upper rotating shaft (323) and fastened thereto. The power mechanism (35) is located at the rear end of the upper rotating shaft (323). The lower pressure wheel mechanism (33) includes a lower pressure wheel (331). The assembly includes a lower drive gear (332), a lower rotating shaft (333), and a lower bushing (334). The lower rotating shaft (333) is fitted with the lower bushing (334) in the front and rear directions, and the lower bushing (334) is fastened to the welding workbench (31). The lower pressure roller (331) is located at the front end of the lower rotating shaft (333) and fastened thereto. The upper pressure roller (321) and the lower pressure roller (331) are in contact to form the extrusion channel (37). The lower drive gear (332) is located in the middle of the lower rotating shaft (333) and fastened thereto. The upper drive gear device (322) and the lower drive gear (332) are connected by gear transmission.

5. A battery heat-shrink film packaging device according to claim 4, characterized in that, The upper transmission gear device (322) includes an upper rotating gear (335), an adjusting gear (336), and an adjusting screw (337). The adjusting gear (336) and the upper rotating gear (335) are concentrically arranged. The adjusting gear (336) is mounted on the upper rotating gear (335) via the adjusting screw (337). Both the upper rotating gear (335) and the adjusting gear (336) are connected to the lower transmission gear (332) for transmission.

6. A battery heat-shrink film packaging device according to claim 4, characterized in that, A compression spring mechanism (338) is provided on the lower bushing (334) on the front side of the lower rotating shaft (333), and the compression spring mechanism (338) is vertically arranged below the lower bushing (334).

7. A battery heat-shrink film packaging device according to claim 4, characterized in that, The trimming wheel mechanism (34) includes a tension spring (341), a limiting device (342), a rocker arm (343), a rocker arm bushing (344), a rotating trimming wheel (345), and a trimming wheel transmission gear (346). The rocker arm (343) is mounted on the upper rotating shaft (323) via the rocker arm bushing (344). The rotating trimming wheel (345) is located at the front end of the rocker arm (343) and is positioned behind the extrusion channel (37). The ultrasonic welding gun (36) is positioned below and in contact with the rotating trimming wheel (345) to form the trimming channel (38). The tension spring (341) and the limiting device (342) are located above the rear end of the rocker arm (343). 2) The tension spring (341) is vertically mounted above the rocker arm (343). One end of the tension spring (341) is connected to the rocker arm (343), and the other end is connected to the welding workbench (31). The limiting device (342) is in contact with the rocker arm (343). The upper pressure roller (321) is provided with the cutting wheel transmission gear (346). The cutting wheel transmission gear (346) and the upper pressure roller (321) are concentrically arranged. The rotating cutting wheel (345) and the cutting wheel transmission gear (346) are connected in transmission. The limiting device (342) is provided with a pneumatic rod device (347). The working end of the pneumatic rod device (347) is located above the rocker arm (343).

8. A battery heat-shrink film packaging device according to claim 1, characterized in that, The heat shrink film feeding device (4) includes a roller device (41) and a guide plate (42). The roller device (41) is located on the opposite side of the battery operating device (2) located on one side of the transmission mechanism (1). The guide plate (42) is embedded in the transmission mechanism (1) behind the starting point of the docking between the battery operating device (2) and the transmission mechanism (1).

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