Battery plastic shell film coating device

Abstract

The invention discloses a battery plastic shell film coating device, and relates to the technical field of storage battery production. The device comprises a workbench; a conveying mechanism is horizontally arranged on the upper surface of the workbench; a thin film releasing mechanism is arranged at the input end of the conveying mechanism; a positioning mechanism is arranged at the output end of the conveying mechanism; a film guiding mechanism and a film pushing mechanism are arranged between the positioning mechanism and the film releasing mechanism side by side in the conveying direction of the conveying mechanism. And a film cutting mechanism is arranged on the film pushing mechanism. The film coating device is reasonable in structural design and convenient to use, and the film coating efficiency of the battery plastic shell is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of battery production, and in particular relates to a battery plastic shell coating device. Background Art

[0002] In the prior art, a layer of film needs to be wrapped around the outer surface of the battery plastic shell before it comes off the production line, in order to prevent the surface of the battery plastic shell from being scratched due to friction or bumping during subsequent production and transportation, resulting in poor appearance; and, after the battery completes some production procedures, the film on the battery plastic shell needs to be torn off, so the film on the battery plastic shell must also be easy to tear off later. Therefore, the existing film wrapping method usually uses two sections of film to wrap symmetrically on the side of the battery plastic shell. However, the current film wrapping method is still performed manually, which not only reduces the film wrapping efficiency of the battery plastic shell, but also has poor film wrapping quality, and also increases the labor intensity of workers. Therefore, it is urgent to study a battery plastic shell film wrapping device to solve the above problems. Summary of the invention

[0003] The present invention provides a battery plastic shell coating device, the purpose of which is to solve the technical problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The present invention is a battery plastic shell film coating device, comprising a workbench; a conveying mechanism is horizontally installed on the upper surface of the workbench; a film releasing mechanism is installed at the input end of the conveying mechanism; a positioning mechanism is installed at the output end of the conveying mechanism; a film guiding mechanism and a film pushing mechanism are installed side by side between the positioning mechanism and the film releasing mechanism along the conveying direction of the conveying mechanism; and a film cutting mechanism is installed on the film pushing mechanism.

[0006] As a preferred technical solution of the present invention, the conveying mechanism includes a pair of beams fixed horizontally side by side on the upper surface of the workbench; a pair of first rollers and a pair of second rollers are rotatably connected side by side between the two beams; one end of one of the first rollers is coaxially fixed on the output shaft of a first motor; the first motor is fixed on a beam; the two first rollers are connected by a first conveyor belt transmission; the two second rollers are connected by a second conveyor belt transmission; the upper surface of the first conveyor belt is flush with the upper surface of the second conveyor belt; one end of the other first roller and one end of the second roller are fixedly sleeved with a first pulley; the two first pulleys are connected by a synchronous belt transmission; at least two transition rollers are arranged side by side between the other first roller and the second roller; the two ends of each of the transition rollers are rotatably connected to the two beams respectively, and the upper outer surface of each of the transition rollers is tangent to the upper surface of the second conveyor belt.

[0007] As a preferred technical solution of the present invention, the film releasing mechanism includes a pair of first rotating shafts respectively connected to the upper surface of the workbench for vertical rotation and a pair of supporting slats respectively fixed vertically on the two cross beams; the two first rotating shafts are respectively arranged on the relatively outer sides of the two cross beams; the rotation directions of the two first rotating shafts are opposite, and the two first rotating shafts are fixedly sleeved with film rollers; the two supporting slats are respectively arranged on the opposite sides of the first conveyor belt; the two supporting slats are both in a ""-shaped structure, and the lower surfaces of the horizontal sections of the two supporting slats are vertically rotatably connected with conveying rollers corresponding to the film rollers; the two conveying rollers are arranged between the vertical sections of the two supporting slats.

[0008] As a preferred technical solution of the present invention, a second rotating shaft is horizontally arranged between the two first rotating shafts; the second rotating shaft is inserted and arranged on the two cross beams, and the second rotating shaft is rotatably connected to the two cross beams; a first gear is fixedly sleeved on the second rotating shaft; a second gear is meshed on the first gear; the second gear is fixedly sleeved on the output shaft of a second motor; the second motor is fixed on the upper surface of the workbench; worms are coaxially fixed at both ends of the second rotating shaft; worm wheels are meshed on the two worms; and the two worm wheels are fixedly sleeved on the two first rotating shafts respectively.

[0009] As a preferred technical solution of the present invention, the positioning mechanism includes a pair of mounting plates respectively fixed vertically on two beams; the two mounting plates are respectively arranged on the opposite sides of the two second conveyor belts; the upper parts of the two mounting plates are horizontally fixed with a first cylinder; the output ends of the two first cylinders respectively slide through the two mounting plates and are horizontally fixed with positioning strips parallel to the beams; the ends of the two positioning strips away from the first conveyor belt have a limiting flange; the two limiting flanges are arranged between the two positioning strips.

[0010] As a preferred technical solution of the present invention, the film guiding mechanism includes two pairs of first supports vertically fixed on the upper surface of the workbench; the two pairs of the first supports are respectively arranged on the relatively outer sides of the two beams; the upper parts of the two pairs of the first supports are horizontally fixed with second cylinders, and the output end of each of the second cylinders slides through the corresponding first supports; the output ends of each pair of the second cylinders are connected by transmission strips parallel to the beams; the two ends of the two transmission strips are fixed with first brackets in a "]"-shaped structure; the two horizontal sections of each of the first brackets are vertically rotatably connected with a third rotating shaft; the two transmission strips The upper end of any third rotating shaft on the moving plate strip is fixedly sleeved with a second pulley; the two second pulleys are connected to the third pulley through a synchronous belt transmission; the two third pulleys are respectively fixedly sleeved on the output shafts of a pair of third motors; the two third motors are respectively vertically fixed on the vertical sections of the two first brackets; the two pairs of the third rotating shafts are fixedly sleeved with a pair of fourth pulleys distributed up and down, and the two fourth pulleys on each pair of the third rotating shafts are respectively connected through a pair of conveyor belt transmission; the outer surfaces of the two pairs of the conveyor belts are fixed with multiple bearing blocks side by side along the length direction, and a guide roller is vertically rotatably connected between the two bearing blocks located on the same vertical line.

[0011] As a preferred technical solution of the present invention, the film pushing mechanism includes a pair of second supports both vertically fixed on the upper surface of the workbench; the two second supports are respectively arranged on the relatively outer sides of the two beams; the upper parts of the two second supports are horizontally fixed with a third cylinder; the output ends of the two third cylinders respectively slide through the two second supports and are fixed with a second bracket in a "]"-shaped structure; a pair of pushing plates are vertically fixed side by side between the two ends of each second bracket.

[0012] As a preferred technical solution of the present invention, the film cutting mechanism includes a pair of load-bearing slats respectively vertically fixed on the horizontal sections of the two second brackets, and each of the load-bearing slats is arranged between the two horizontal sections of the second bracket; a fourth cylinder is horizontally fixed on the two load-bearing slats; the output ends of the two fourth cylinders slide through the two load-bearing slats respectively and are fixed with transmission blocks; cutting blades parallel to the pushing pieces are vertically fixed on the two transmission blocks; each of the cutting blades slides and fits between the two pushing pieces on the corresponding second bracket.

[0013] The present invention has the following beneficial effects:

[0014] The present invention places a plurality of battery plastic shells on a conveying mechanism, controls the distance between two adjacent battery plastic shells to be approximately equal to the width of the battery plastic shells, and manually wraps the free ends of the two films on the film releasing mechanism on the first battery plastic shell. In the process of conveying the battery plastic shells by the conveying mechanism, the film releasing mechanism also releases the film synchronously, so that the released films are successively attached to the opposite sides of the plurality of battery plastic shells, and then the film is tightly attached to the side of the battery plastic shell by the film guiding mechanism. When any battery plastic shell moves to a position corresponding to the positioning mechanism, the positioning mechanism clamps and positions it so that the battery plastic shell no longer moves. Then, as the remaining battery plastic shells continue to be conveyed, the film pushing mechanism is used to clamp the battery plastic shell clamped by the positioning mechanism with its adjacent battery plastic shells. The film between the battery plastic shell and the adjacent battery plastic shell is pushed toward the middle of the battery plastic shell, causing the pushed film to adhere to the side surface of the battery plastic shell clamped by the positioning mechanism. After the distance between the battery plastic shell clamped by the positioning mechanism and its adjacent battery plastic shell is shortened to a minimum, the film between the battery plastic shell clamped by the positioning mechanism and its adjacent battery plastic shell is attached to the sides of the above two battery plastic shells. Then, the film cutting mechanism is used to cut the film between the battery plastic shell clamped by the positioning mechanism and its adjacent battery plastic shell. Then, the positioning mechanism is reset and the battery plastic shell that has been coated is taken away. The above actions are repeated to achieve coating processing for multiple battery plastic shells, which not only effectively improves the coating efficiency of the battery plastic shell, but also reduces the labor intensity of workers, while also ensuring the production efficiency of the battery.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a battery plastic shell coating device of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the conveying mechanism of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the connection between the first roller and the conveying roller of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the connection between the conveying mechanism and the positioning mechanism of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the film release mechanism of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the film guiding mechanism of the present invention.

[0023] Figure 7 It is a schematic structural diagram of the guide roller of the present invention being arranged on a conveyor belt.

[0024] Figure 8 It is a structural schematic diagram of the film cutting mechanism of the present invention being arranged on the film pushing mechanism.

[0025] Fig. 9 It is a structural schematic diagram of the film cutting mechanism of the present invention.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-working table, 2-conveying mechanism, 3-film releasing mechanism, 4-positioning mechanism, 5-film guiding mechanism, 6-film pushing mechanism, 7-film cutting mechanism, 201-crossbeam, 202-first roller, 203-second roller, 204-first motor, 205-first conveyor belt, 206-second conveyor belt, 207-first pulley, 208-transition roller, 301-first rotating shaft, 302-supporting slats, 303-film roller, 304-conveying roller, 305-second rotating shaft, 306-first gear, 307-second gear, 308-second motor, 309-worm, 310-worm wheel , 401-mounting plate, 402-first cylinder, 403-positioning slat, 404-limiting flange, 501-first support, 502-second cylinder, 503-transmission slat, 504-first bracket, 505-third rotating shaft, 506-second pulley, 507-third pulley, 508-third motor, 509-fourth pulley, 510-conveyor belt, 511-bearing block, 512-guide roller, 601-second support, 602-third cylinder, 603-second bracket, 604-push sheet, 701-bearing slat, 702-fourth cylinder, 703-transmission block, 704-cutting blade. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] See also Figure 1 As shown, the present invention is a battery plastic shell coating device, comprising a workbench 1; a conveying mechanism 2 is horizontally installed on the upper surface of the workbench 1; a film releasing mechanism 3 is installed at the input end of the conveying mechanism 2; a positioning mechanism 4 is installed at the output end of the conveying mechanism 2; a film guiding mechanism 5 and a film pushing mechanism 6 are installed side by side between the positioning mechanism 4 and the film releasing mechanism 3 along the conveying direction of the conveying mechanism 2; and a film cutting mechanism 7 is installed on the film pushing mechanism 6. When in use, multiple battery plastic shells are placed on the conveying mechanism 2, and the distance between two adjacent battery plastic shells is controlled to be approximately equal to the width of the battery plastic shell (the length direction of the battery plastic shell is set parallel to its conveying direction), and the free ends of the two films on the film releasing mechanism 3 are manually wrapped on the first battery plastic shell. In the process of conveying the battery plastic shell by the conveying mechanism 2, the film releasing mechanism 3 also releases the film synchronously, so that the released film is successively attached to the opposite sides of multiple battery plastic shells, and then the film is tightly attached to the side of the battery plastic shell by the film guiding mechanism 5. When any battery plastic shell moves to the position corresponding to the positioning mechanism 4, the positioning mechanism 4 clamps it to position it so that the battery plastic shell no longer moves, and then the film pushing mechanism 6 is used to push the battery plastic shell clamped by the positioning mechanism 4 while the remaining battery plastic shells continue to be conveyed. The film between the battery plastic shell and its adjacent battery plastic shell is pushed toward the middle of the battery plastic shell, causing the pushed film to adhere to the side of the battery plastic shell clamped by the positioning mechanism 4, and then after the distance between the battery plastic shell clamped by the positioning mechanism 4 and its adjacent battery plastic shell is shortened to a minimum, the film between the battery plastic shell clamped by the positioning mechanism 4 and its adjacent battery plastic shell is attached to the sides of the above two battery plastic shells, and then the film cutting mechanism 7 is used to cut the film between the battery plastic shell clamped by the positioning mechanism 4 and its adjacent battery plastic shell, and then the positioning mechanism 4 is reset and the battery plastic shell that has been coated is taken away, and the above actions are repeated, thereby realizing the coating process for multiple battery plastic shells, which not only effectively improves the coating efficiency of the battery plastic shell, but also reduces the labor intensity of workers, while also ensuring the production efficiency of the battery.

[0031] Embodiment 2:

[0032] Based on Example 1, Figure 2-4As shown, the conveying mechanism 2 includes a pair of horizontal beams 201 connected to the upper surface of the workbench 1 by bolts in parallel; a pair of first rollers 202 and a pair of second rollers 203 are rotatably connected in parallel between the two beams 201; one end of a first roller 202 is coaxially fixed to the output shaft of a first motor 204; the first motor 204 is bolted to a beam 201; the two first rollers 202 are connected to each other through a first conveyor belt 205; the two second rollers 203 are connected to each other through a second conveyor belt 206; the first conveyor belt 205 The upper surface of the first roller 202 is flush with the upper surface of the second conveyor belt 206; one end of the other first roller 202 and one end of the second roller 203 are both keyed to the first pulley 207; the two first pulleys 207 are connected by a synchronous belt transmission; two transition rollers 208 are arranged side by side between the other first roller 202 and the second roller 203; the two ends of each transition roller 208 are respectively rotatably connected to the two crossbeams 201, and the upper outer surface of each transition roller 208 is tangent to the upper surface of the second conveyor belt 206. When in use, the battery plastic shell is placed on the first conveyor belt 205, the first motor 204 is used to drive the first roller 202 to rotate, and the first roller 202 drives the second roller 203 to rotate through the first pulley 207, thereby realizing the transmission of the battery plastic shell.

[0033] Among them Figure 2-5As shown, the film release mechanism 3 includes a pair of first rotating shafts 301 respectively connected to the upper surface of the workbench 1 vertically and rotatably, and a pair of supporting strips 302 respectively connected to the two beams 201 by vertical bolts; the two first rotating shafts 301 are respectively arranged on the opposite outer sides of the two beams 201; the rotation directions of the two first rotating shafts 301 are opposite, and the two first rotating shafts 301 are keyed to film rollers 303; the two supporting strips 302 are respectively arranged on the opposite sides of the first conveyor belt 205; the two supporting strips 302 are both in a ""-shaped structure, and the lower surfaces of the horizontal sections of the two supporting strips 302 are both vertically rotatably connected to conveying rollers 304 corresponding to the film rollers 303; the two conveying rollers 304 are arranged Between the vertical sections of the two supporting slats 302; a second rotating shaft 305 is horizontally arranged between the two first rotating shafts 301; the second rotating shaft 305 is inserted and arranged on the two beams 201, and the second rotating shaft 305 is rotatably connected to the two beams 201; a first gear 306 is keyed to the second rotating shaft 305; a second gear 307 is meshed on the first gear 306; the second gear 307 is keyed to the output shaft of a second motor 308; the second motor 308 is bolted to the upper surface of the workbench 1; worms 309 are coaxially fixed at both ends of the second rotating shaft 305; worm wheels 310 are meshed on the two worms 309; the two worm wheels 310 are respectively keyed to the two first rotating shafts 301. When in use, the second motor 308 drives the second shaft 305 to rotate via the second gear 307 and the first gear 306, causing the second shaft 305 to drive the two first shafts 301 to move synchronously and oppositely via the worm 309 and the worm wheel 310, thereby releasing the film on the film roller 303, and allowing the released film to wrap around the conveying roller 304 and then adhere to the side of the battery plastic shell, effectively ensuring the coating efficiency and effect of the battery plastic shell.

[0034] Among them Figure 2 and Figure 4 As shown, the positioning mechanism 4 includes a pair of mounting plates 401 respectively connected to the two beams 201 by vertical bolts; the two mounting plates 401 are respectively arranged on the opposite sides of the two second conveyor belts 206; the upper parts of the two mounting plates 401 are both horizontally bolted with conventional first cylinders 402 in the art; the output ends of the two first cylinders 402 slide through the two mounting plates 401 respectively and are both horizontally bolted with positioning strips 403 parallel to the beams 201; the ends of the two positioning strips 403 away from the first conveyor belt 205 are both integrally formed with limited flanges 404; the two limited flanges 404 are both arranged between the two positioning strips 403. When in use, when the battery plastic shell moves to the second conveyor belt 206, the two first cylinders 402 drive the positioning strips 403 thereon to synchronously approach the battery plastic shell, so that the battery plastic shell is clamped between the two positioning strips 403, effectively ensuring the subsequent coating effect of the battery plastic shell.

[0035] Embodiment three:

[0036] Based on Example 2, Figure 6-7 As shown, the film guide mechanism 5 includes two pairs of first supports 501 that are vertically bolted to the upper surface of the workbench 1; the two pairs of first supports 501 are respectively arranged on the relatively outer sides of the two beams 201; the upper parts of the two pairs of first supports 501 are horizontally bolted with conventional second cylinders 502 in the field, and the output end of each second cylinder 502 slides through the corresponding first support 501; the output ends of each pair of second cylinders 502 are connected by transmission strips 503 parallel to the beam 201, and the output ends of the second cylinders 502 are bolted to the transmission strips 503; the two ends of the two transmission strips 503 are welded with first brackets 504 with a "]"-shaped structure; the two horizontal sections of each first bracket 504 are vertically rotatably connected with a third rotating shaft 505; the upper end of any third rotating shaft 505 on the two transmission slats 503 is keyed to a second pulley 506; the two second pulleys 506 are connected to a third pulley 507 through a synchronous belt drive; the two third pulleys 507 are keyed to the output shafts of a pair of third motors 508 respectively; the two third motors 508 are vertically bolted to the vertical sections of the two first brackets 504 respectively; a pair of fourth pulleys 509 distributed up and down are keyed to the two pairs of third rotating shafts 505, and the two fourth pulleys 509 on each pair of third rotating shafts 505 are respectively connected through a pair of conveyor belts 510 for transmission; the outer surfaces of the two pairs of conveyor belts 510 are riveted with a plurality of bearing blocks 511 side by side along the length direction, and a guide roller 512 is vertically rotatably connected between the two bearing blocks 511 located on the same vertical line. When in use, the two second cylinders 502 drive the two sets of guide rollers 512 to approach the battery plastic shell, and the third motor 508 drives the guide rollers 512 to move via the third pulley 507, the second pulley 506, the third rotating shaft 505, the fourth pulley 509 and the conveyor belt 510, and at the same time, the movement direction of the guide rollers 512 is set in the same direction as the conveying direction of the battery plastic shell, so that not only can the film be tightly attached to the side of the battery plastic shell, but also the movement of the battery plastic shell can be guided.

[0037] Embodiment 4:

[0038] Based on Example 3 Figure 8-9As shown, the film pushing mechanism 6 includes a pair of second supports 601 that are both vertically bolted to the upper surface of the workbench 1; the two second supports 601 are respectively arranged on the relatively outer sides of the two beams 201; the upper parts of the two second supports 601 are horizontally bolted to the conventional third cylinders 602 in the field; the output ends of the two third cylinders 602 slide through the two second supports 601 respectively and are bolted to the second brackets 603 in a "]"-shaped structure; a pair of pushing plates 604 are vertically screwed side by side between the two ends of each second bracket 603; the film cutting mechanism 7 includes a pair of bearing plates vertically welded to the horizontal sections of the two second brackets 603 Strips 701, and each load-bearing strip 701 is arranged between the two horizontal sections of the second bracket 603; the two load-bearing strips 701 are horizontally bolted with conventional fourth cylinders 702 in the field; the output ends of the two fourth cylinders 702 slide through the two load-bearing strips 701 respectively and are bolted with transmission blocks 703; cutting blades 704 parallel to the pushing pieces 604 are vertically fixed on the two transmission blocks 703; each cutting blade 704 is slidably matched between the two pushing pieces 604 on the corresponding second bracket 603, and the distance between the two pushing pieces 604 on the second bracket 603 is slightly larger than the thickness of the cutting blade 704. When in use, when the positioning mechanism 4 clamps and positions the battery plastic shell on the second conveyor belt 206 to prevent the battery plastic shell from moving and the remaining battery plastic shells are continuously conveyed, the film between the battery plastic shell clamped by the positioning mechanism 4 and its adjacent battery plastic shells will gradually loosen. At this time, the two third cylinders 602 drive the second bracket 603 to move similarly, prompting the two pairs of pushing pieces 604 to push the film between the battery plastic shell clamped by the positioning mechanism 4 and its adjacent battery plastic shells to approach each other, and at this time, a pushing piece 604 close to the battery plastic shell clamped by the positioning mechanism 4 and the film between the battery plastic shell The distance is slightly larger than the thickness of the film. As the battery shell clamped by the positioning mechanism 4 continues to approach its adjacent battery shell, the film between the two battery shells is divided into two halves and attached to the sides of the two battery shells. Then, the cutting blade 704 is driven by the fourth cylinder 702 through the transmission block 703 to move linearly, causing the film between the two battery shells to be cut, thereby realizing the film coating processing of the battery shell clamped by the positioning mechanism 4. Repeating the above actions can realize the film coating operation of multiple battery shells, effectively ensuring the film coating efficiency of the battery shells, and also reducing the labor intensity of workers.

[0039] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A battery plastic shell coating device, characterized in that: comprising a workbench (1); A conveying mechanism (2) is horizontally mounted on the upper surface of the workbench (1); a film releasing mechanism (3) is mounted at the input end of the conveying mechanism (2); a positioning mechanism (4) is mounted at the output end of the conveying mechanism (2); a film guiding mechanism (5) and a film pushing mechanism (6) are mounted side by side between the positioning mechanism (4) and the film releasing mechanism (3) along the conveying direction of the conveying mechanism (2); and a film cutting mechanism (7) is mounted on the film pushing mechanism (6).

2. A battery plastic shell coating device according to claim 1, characterized in that: The conveying mechanism (2) comprises a pair of beams (201) fixed side by side horizontally on the upper surface of the workbench (1); a pair of first rollers (202) and a pair of second rollers (203) are rotatably connected side by side between the two beams (201); one end of one of the first rollers (202) is coaxially fixed on the output shaft of a first motor (204); the first motor (204) is fixed on a beam (201); the two first rollers (202) are connected by a first conveyor belt (205); the two second rollers (203) are connected by a second conveyor belt (206); the upper surface of the first conveyor belt (205) is flush with the upper surface of the second conveyor belt (206); one end of the other first roller (202) and one end of the second roller (203) are both fixedly sleeved with a first pulley (207); the two first pulleys (207) are connected by a synchronous belt transmission.

3. A battery plastic shell coating device according to claim 2, characterized in that: At least two transition rollers (208) are arranged side by side between the first roller (202) and the second roller (203); the two ends of each transition roller (208) are rotatably connected to the two cross beams (201), and the upper outer surface of each transition roller (208) is tangent to the upper surface of the second conveyor belt (206).

4. A battery plastic shell coating device according to claim 2 or 3, characterized in that: The film release mechanism (3) comprises a pair of first rotating shafts (301) respectively connected to the upper surface of the workbench (1) in a vertical rotation manner, and a pair of supporting strips (302) respectively fixed to the two beams (201); the two first rotating shafts (301) are respectively arranged on the opposite outer sides of the two beams (201); the two first rotating shafts (301) rotate in opposite directions, and the two first rotating shafts (301) are both fixedly sleeved with a film roller (303); the two supporting strips (302) are respectively arranged on the opposite sides of the first conveyor belt (205); the two supporting strips (302) are both in a ""-shaped structure, and the lower surfaces of the horizontal sections of the two supporting strips (302) are both vertically rotatably connected with a conveying roller (304) corresponding to the film roller (303); the two conveying rollers (304) are arranged between the vertical sections of the two supporting strips (302).

5. A battery plastic shell coating device according to claim 4, characterized in that: A second rotating shaft (305) is horizontally arranged between the two first rotating shafts (301); the second rotating shaft (305) is inserted and arranged on the two cross beams (201), and the second rotating shaft (305) is rotatably connected to the two cross beams (201); a first gear (306) is fixedly sleeved on the second rotating shaft (305); a second gear (307) is meshed on the first gear (306); the second gear (307) is fixedly sleeved on the output shaft of a second motor (308); the second motor (308) is fixed on the upper surface of the workbench (1); worms (309) are coaxially fixed at both ends of the second rotating shaft (305); worm wheels (310) are meshed on the two worms (309); and the two worm wheels (310) are fixedly sleeved on the two first rotating shafts (301), respectively.

6. A battery plastic shell coating device according to claim 5, characterized in that: The positioning mechanism (4) comprises a pair of mounting plates (401) respectively fixed vertically on two cross beams (201); the two mounting plates (401) are respectively arranged on opposite sides of two second conveyor belts (206); a first cylinder (402) is horizontally fixed on the upper part of the two mounting plates (401); the output ends of the two first cylinders (402) respectively slide through the two mounting plates (401) and are horizontally fixed with positioning strips (403) parallel to the cross beams (201); the ends of the two positioning strips (403) away from the first conveyor belt (205) are each provided with a limiting flange (404); the two limiting flanges (404) are each arranged between the two positioning strips (403).

7. A battery plastic shell coating device according to claim 5 or 6, characterized in that: The film guiding mechanism (5) comprises two pairs of first supports (501) both vertically fixed on the upper surface of the workbench (1); the two pairs of the first supports (501) are respectively arranged on the relatively outer sides of the two beams (201); the upper parts of the two pairs of the first supports (501) are horizontally fixed with second cylinders (502), and the output end of each second cylinder (502) slides through the corresponding first support (501); the output ends of each pair of the second cylinders (502) are connected by a transmission strip (503) parallel to the beam (201); the two ends of the two transmission strips (503) are fixed with a first bracket (504) in a "]"-shaped structure; the two horizontal sections of each first bracket (504) are vertically rotatably connected with a third rotating shaft (505); any one of the second cylinders on the two transmission strips (503) is connected to the third rotating shaft (505). The upper ends of the three rotating shafts (505) are fixedly sleeved with second pulleys (506); the two second pulleys (506) are connected to third pulleys (507) through synchronous belt transmission; the two third pulleys (507) are respectively fixedly sleeved on the output shafts of a pair of third motors (508); the two third motors (508) are respectively vertically fixed on the vertical sections of the two first brackets (504); the two pairs of the third rotating shafts (505) are fixedly sleeved with a pair of fourth pulleys (509) distributed up and down, and the two fourth pulleys (509) on each pair of the third rotating shafts (505) are respectively connected through a pair of conveyor belts (510); the outer surfaces of the two pairs of conveyor belts (510) are fixed with multiple bearing blocks (511) in parallel along the length direction, and a guide roller (512) is vertically rotatably connected between the two bearing blocks (511) located on the same vertical line.

8. A battery plastic shell coating device according to claim 7, characterized in that: The film pushing mechanism (6) comprises a pair of second supports (601) both vertically fixed on the upper surface of the workbench (1); the two second supports (601) are respectively arranged on the relatively outer sides of the two cross beams (201); a third cylinder (602) is horizontally fixed on the upper part of the two second supports (601); the output ends of the two third cylinders (602) respectively slide through the two second supports (601) and are both fixed with a second bracket (603) in a "]"-shaped structure; a pair of pushing plates (604) are vertically fixed side by side between the two ends of each second bracket (603).

9. A battery plastic shell coating device according to claim 8, characterized in that: The film cutting mechanism (7) comprises a pair of bearing strips (701) respectively fixed vertically on the horizontal sections of the two second brackets (603), and each of the bearing strips (701) is arranged between the two horizontal sections of the second bracket (603); a fourth cylinder (702) is horizontally fixed on the two bearing strips (701); the output ends of the two fourth cylinders (702) slide through the two bearing strips (701) and are fixed with transmission blocks (703); cutting blades (704) parallel to the pushing pieces (604) are vertically fixed on the two transmission blocks (703); each of the cutting blades (704) is slidably matched between the two pushing pieces (604) on the corresponding second bracket (603).

Images