Battery Pack Production Line

Abstract

This invention provides a battery coating production line, comprising a feeding mechanism, a transfer mechanism, a coating turntable mechanism, an adhesive coating mechanism, an inspection mechanism, and a unloading mechanism connected in sequence. The feeding mechanism is used to group batteries and feed the grouped batteries and Mylar film. The transfer mechanism is used to transfer the batteries and Mylar film provided by the feeding mechanism to the coating turntable mechanism. The coating turntable mechanism includes multiple coating devices and a carrier device that rotates axially along the coating turntable mechanism. Each carrier device passes through the coating devices in sequence, so that the Mylar film on the carrier device is thermally melted to the peripheral walls of the battery to form a coated battery. The adhesive coating mechanism is used to apply adhesive to the side walls of the coated batteries unloaded by the coating turntable mechanism. The inspection mechanism is used to inspect the coated batteries and reject unqualified coated batteries. The unloading mechanism is used to transfer and unload the inspected coated batteries.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and in particular to a battery pack production line. Background Technology

[0002] During the battery production process, after the battery body is produced, it needs to undergo processes such as coating and encapsulation to protect the battery and facilitate its subsequent transportation and use.

[0003] In existing technologies, each process of battery production often requires specialized production lines and equipment, which are poorly compatible with each other. Manual intervention is often required to complete all battery processes, resulting in low efficiency in the packaging stage after battery production. At the same time, a large amount of space and effort is required for battery packaging, leading to low production efficiency and high production costs. Summary of the Invention

[0004] This invention provides a battery pack production line to solve the problem of low battery production efficiency and achieve high-efficiency battery production.

[0005] The present invention provides a battery pack production line, comprising a feeding mechanism, a transfer mechanism, a packing turntable mechanism, a coating mechanism, a testing mechanism, and a unloading mechanism connected in sequence.

[0006] The feeding mechanism is used to group batteries and to feed the grouped batteries and the Mylar film.

[0007] The transfer mechanism is used to transfer the battery and the Mylar film provided by the feeding mechanism to the coating turntable mechanism;

[0008] The coating turntable mechanism includes multiple coating devices and a support device that rotates along the axial direction of the coating turntable mechanism. Each support device passes through the coating devices in sequence, so that the mylar film on the support device is thermally melted onto the peripheral walls of the battery to form a coated battery.

[0009] The coating mechanism is used to coat the sidewalls of the coated batteries fed by the coating turntable mechanism.

[0010] The testing agency is used to test the coated batteries after they have been coated with adhesive, and to reject unqualified coated batteries as NG (Not Good).

[0011] The feeding mechanism is used to transfer and feed the tested coated batteries.

[0012] According to the battery pack production line provided by the present invention, the transfer mechanism includes a battery picking position;

[0013] The feeding mechanism includes:

[0014] A battery pairing device for pairing two batteries; and,

[0015] A battery transport line is used to receive the assembled batteries and transport them to the transfer mechanism.

[0016] According to the battery pack production line provided by the present invention, the battery assembly device includes:

[0017] The clamping assembly includes two first clamping portions, which are used to clamp the battery;

[0018] A conveying component is used to carry the battery held by the first clamping part and move the battery to a first target position or a second target position;

[0019] A detection component is used to detect the battery at the first target location to determine whether the battery is a qualified battery or a unqualified battery;

[0020] The cache component includes a second clamping portion for clamping the qualified battery located at the first target position; and...

[0021] A transfer assembly for transferring two qualified batteries at the second target location to the battery transport line.

[0022] According to the battery pack production line provided by the present invention, the transfer mechanism further includes a film-coating material picking station;

[0023] The feeding mechanism also includes:

[0024] A film-coated storage device, wherein a storage area is formed on the film-coated storage device, and the storage area is used to place and store the mylar film; and,

[0025] A coating transport device for conveying mylar film between the storage area and the coating dispensing station.

[0026] According to the battery pack production line provided by the present invention, the coating transport device includes:

[0027] An adsorption assembly includes an adsorption disk for adsorbing and removing the mylar membrane from the storage area; and...

[0028] A coating carrier base has a placement surface for holding the mylar film taken out from the suction assembly. The coating carrier base is reciprocally disposed between the suction assembly and the coating pick-up position to transport the mylar film to the coating pick-up position.

[0029] According to the battery pack production line provided by the present invention, the packing turntable mechanism further includes a mounting turntable, the mounting turntable having a station layer and a bearing layer spaced apart along the axial direction, the bearing layer being rotatably arranged around its central axis, and a plurality of hot melt stations being sequentially formed on the station layer along the circumference of the bearing layer.

[0030] Multiple carrier devices are sequentially arranged on the carrier layer along the circumference of the carrier layer. Each carrier device has a carrier surface, which is used to support the battery and the Mylar membrane.

[0031] Multiple coating devices are correspondingly disposed at multiple hot-melt stations to hot-melt the mylar film onto different sidewalls of the battery.

[0032] The bearing layer rotates, causing the bearing device to pass through multiple hot-melt stations in sequence.

[0033] According to the battery pack production line provided by the present invention, the carrier device includes:

[0034] A support base has a support surface formed thereon, and a limiting block is protruding on the support surface. The support surface is used to support the battery and the mylar membrane.

[0035] A clamping structure includes a clamping member, which is disposed opposite to the limiting block along a first direction of the bearing surface. The clamping member is movably mounted to the bearing seat along the first direction and a second direction of the bearing surface, and the clamping member and the limiting block are used to clamp the battery; and...

[0036] A synchronization structure is provided between the bearing seat and the abutment member to enable the abutment member to move synchronously in the first direction and the second direction;

[0037] The first direction and the second direction are set perpendicular to each other.

[0038] According to the battery pack production line provided by the present invention, the coating mechanism includes:

[0039] A coating transport line, which is used to carry and transport the coated battery;

[0040] Two sets of coating devices are located on the same side of the coating transport line and are spaced apart from each other. Both coating devices are used to coat the coated battery; and,

[0041] A reversing device is located on one side of the coating transport line and between the two sets of coating devices. The reversing device is used to clamp the coated battery and rotate it.

[0042] According to the battery pack production line provided by the present invention, the testing mechanism includes:

[0043] A detection base having a detection space formed thereon; and,

[0044] Multiple detection elements are arranged around the detection space to detect the coated battery located within the detection space.

[0045] In the embodiments provided by this invention, the feeding mechanism, transfer mechanism, coating turntable mechanism, coating mechanism, detection mechanism, and unloading mechanism are integrated to form a complete production line. In the battery coating production line, the batteries are first grouped so that multiple batteries form a battery pack. Then, the battery pack and Mylar film are obtained by the transfer mechanism and transported to the coating turntable mechanism. The coating turntable mechanism includes a carrying device that rotates along its axial direction. The carrying device rotates to pass through multiple coating devices in sequence so that the Mylar film is coated on the battery. The position is switched between different coating devices by the turntable, saving the space occupied by the battery coating production line and facilitating the cyclic coating operation. After the coating is completed, the coating mechanism applies sidewall coating to the coated battery, and performs detection and unloading to complete the entire battery production process. Through the cooperation and positioning of the various mechanisms, the space occupied and coordination of the entire battery coating production line are improved, the production cost is reduced, and the production efficiency is accelerated by forming a complete production line. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0047] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the battery pack production line provided by the present invention;

[0048] Figure 2 for Figure 1 A three-dimensional structural diagram of the feeding mechanism;

[0049] Figure 3 for Figure 1 A three-dimensional structural diagram of the feeding mechanism from another angle;

[0050] Figure 4 for Figure 1 A three-dimensional structural diagram of the transit mechanism;

[0051] Figure 5 for Figure 1 A three-dimensional structural diagram of the intermediate wrapping turntable mechanism;

[0052] Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure of the bottom heat-melting area;

[0053] Figure 7 for Figure 5 A three-dimensional structural diagram of the top-middle hot-melt device;

[0054] Figure 8 for Figure 5 A three-dimensional structural diagram of the first pressure plate in the middle;

[0055] Figure 9 for Figure 5 A three-dimensional structural diagram of the hot-melt position on the middle side;

[0056] Figure 10 for Figure 5 A three-dimensional structural diagram of the load-bearing device;

[0057] Figure 11 for Figure 10 A three-dimensional structural diagram of the synchronous structure;

[0058] Figure 12 for Figure 1 A three-dimensional structural diagram of the middle-layer adhesive coating mechanism;

[0059] Figure 13 for Figure 1 A three-dimensional structural diagram of a testing institution.

[0060] Figure label:

[0061] 100. Battery Packing Production Line; 1. Feeding Mechanism; 11. Battery Grouping Device; 111. Clamping Assembly; 112. Conveying Assembly; 113. Buffer Assembly; 114. Transfer Assembly; 12. Battery Transport Line; 13. Coating Storage Device; 14. Coating Carrier Device; 141. First Suction Assembly; 142. Coating Carrier Base; 2. Transfer Mechanism; 21. Transfer Bracket; 22. Battery Gripper Assembly; 23. Second Suction Assembly; 3. Coating Turntable Mechanism; 31. Bearing Device; 311. Bearing Seat; 312. Clamping Member; 3131. Sliding Support; 3132. Guide 3133, Transmission component; 3141, Support base; 3142, Drive block; 3151, Movable rod; 3152, Wedge block; 32, Mounting turntable; 331, Bottom hot melt component; 3321, Clamping and folding assembly; 3322, Top hot melt component; 3323, First pressure plate; 3331, Lifting plate; 3332, Side hot melt component; 3333, Lower pressure plate; 3334, Second pressure plate; 4, Glue coating mechanism; 41, Glue coating transport line; 42, Glue coating device; 43, Reversing device; 5, Detection mechanism; 51, Detection base; 52, Detection component; 6, Unloading mechanism. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0063] Please see Figure 1 This invention provides a battery coating production line 100, comprising a feeding mechanism 1, a transfer mechanism 2, a coating turntable mechanism 3, a coating adhesive mechanism 4, a detection mechanism 5, and a unloading mechanism 6 connected in sequence. The feeding mechanism 1 is used to group batteries and feed the grouped batteries and Mylar film. The transfer mechanism 2 is used to transfer the batteries and Mylar film provided by the feeding mechanism 1 to the coating turntable mechanism 3. The coating turntable mechanism 3 includes multiple coating devices and a carrier device 31 that rotates along the axial direction of the coating turntable mechanism. Each carrier device 31 passes through the coating devices in sequence, so that the Mylar film on the carrier device 31 is thermally melted onto the peripheral walls of the battery to form a coated battery. The coating adhesive mechanism 4 is used to coat the side walls of the coated batteries unloaded by the coating turntable mechanism 3. The detection mechanism 5 is used to detect the coated batteries and reject unqualified coated batteries. The unloading mechanism 6 is used to transfer and unload the detected coated batteries.

[0064] In the embodiments provided by this invention, the feeding mechanism 1, the transfer mechanism 2, the coating turntable mechanism 3, the coating mechanism 4, the detection mechanism 5, and the unloading mechanism 6 are integrated to form a complete production line. In the battery coating production line 100, the feeding mechanism 1 feeds batteries and Mylar film. During the feeding process, the batteries are first grouped so that multiple qualified batteries form a battery pack, and unqualified batteries are screened out and rejected. At the same time, the feeding mechanism 1 provides Mylar film to the transfer mechanism 2. Then, the transfer mechanism 2 obtains the battery pack and Mylar film and transports them to the coating turntable mechanism 3, and places the Mylar film and battery onto the carrier device 31 in sequence, so that the bottom of the battery is pressed on the Mylar film. The coating turntable mechanism 3 includes a device that rotates along its axial direction. The carrier device 31 rotates to pass through multiple coating devices in sequence, switching positions between different coating devices via a turntable, so that the Mylar film is coated onto the battery, saving space in the battery coating production line 100 and facilitating cyclic coating operations. After coating is completed, the coated battery is side-wall coated by a glue-coating mechanism. After glue-coating is completed, the coated battery is inspected and unloaded. During the inspection process, unqualified coated batteries are also rejected and unloaded to complete the entire battery production process. Through the cooperation and positioning of various mechanisms, the entire battery coating production line 100 has better space utilization and coordination, reduces production costs, and accelerates production efficiency by forming a complete production line.

[0065] For further details, please refer to Figure 2 The transfer mechanism 2 includes a battery picking position; the loading mechanism 1 includes a battery grouping device 11 and a battery transport line 12; the battery grouping device 1 is used to group two batteries together; the battery transport line 12 is used to receive the grouped batteries and transport them to the transfer mechanism 2. In this embodiment, the batteries are first grouped and then transported to the transfer mechanism 2 to facilitate the transfer mechanism's picking.

[0066] It should be noted that the battery transport line 12 includes the transport line body and the transport line carrier. The transport line carrier and the transport line body move back and forth through a sliding groove and a sliding rail that are configured to cooperate with each other.

[0067] Specifically, in this embodiment, the battery packing device 11 includes a clamping assembly 111, a conveying assembly 112, a detection assembly, a buffer assembly 113, and a transfer assembly 114. The clamping assembly 111 includes two first clamping parts for clamping batteries. The conveying assembly 112 carries the batteries clamped by the first clamping parts and moves the batteries to a first target position or a second target position. The detection assembly detects the batteries at the first target position to determine whether the batteries are qualified or unqualified. The buffer assembly 113 includes a second clamping part for clamping qualified batteries at the first target position. The transfer assembly 114 transfers the battery pack formed by two qualified batteries at the second target position to the battery transport line 12.

[0068] In the battery pairing device 11 provided by the present invention, the clamping component 111 clamps two batteries at a time and transports them to the first target position through the conveying component 112. The detection component detects the quality of the two batteries, and unqualified batteries are rejected. After the two qualified batteries are paired on the conveying component 112, they are transported to the second target position. Alternatively, a qualified battery held by the clamping component 111 and a qualified battery held by the buffer mechanism 113 are paired at the first target position and then transported to the second target position. While rejecting unqualified batteries, the pairing of qualified batteries is completed. Finally, the batteries are transferred to the battery transport line 12 through the transfer component 114. This method helps to improve the transfer efficiency of batteries, thereby improving the working efficiency of the production line and ensuring production quality.

[0069] Similarly, the battery assembly device 11 also includes a first movable bracket, and the clamping assembly 111 is reciprocally mounted on the first movable bracket to facilitate the reciprocating movement of the clamping assembly 111 to clamp the battery and transport it to the conveying assembly 112.

[0070] Furthermore, the conveying mechanism 112 includes a second movable support and a battery carrier, the battery carrier being reciprocally mounted on the second movable support, and the extension path of the second movable support being set to pass through the first target position and the second target position.

[0071] It should be noted that there are multiple ways for the first movable support and the clamping assembly 111, and the second movable support and the battery carrier to move together. In this embodiment, they move back and forth through a sliding groove and a sliding rail that are configured to cooperate with each other.

[0072] The battery carrier has two spaced-apart support sections that support the battery.

[0073] On the other hand, please see Figure 3In the battery pack film production line 100 provided by the present invention, the transfer mechanism 2 further includes a film-coating pick-up station; the loading mechanism 1 further includes a film-coating storage device 13 and a film-coating transport device 14; the film-coating storage device 13 has a storage area formed thereon for storing Mylar film; the film-coating transport device 14 is used to transport Mylar film between the storage area and the film-coating pick-up station to the transfer mechanism 2.

[0074] It should be noted that the film-coated storage device 13 has multiple implementations. In this embodiment, the film-coated storage device 13 includes a storage platform for placing the mylar film.

[0075] Furthermore, to facilitate the removal of the Mylar film from the storage platform, the coating transport device 14 includes a first suction component 141 and a coating transport base 142. The first suction component 141 has an adsorption tray for adsorbing and removing the Mylar film from the storage area. The coating transport base 142 has a placement surface for supporting the Mylar film removed from the suction component. The coating transport base 142 is reciprocating between the first suction component 141 and the coating pick-up position to transport the Mylar film to the coating pick-up position. In this embodiment, the Mylar film is removed through the first suction component 141, which facilitates the suction of the Mylar film, simplifies the movement path of the transfer mechanism 2, and avoids interference with other Mylar films when the transfer mechanism 2 is suctioning the Mylar film.

[0076] It should be noted that the film-coated carrier base 142 achieves reciprocating movement through the mutually cooperating slide rails and slide grooves.

[0077] In this embodiment, please refer to Figure 4 To facilitate the transfer of batteries and Mylar film, the transfer mechanism 2 includes a transfer bracket 21, a battery gripper assembly 22, and a second suction assembly 23. The transfer bracket 21 reciprocates between the feeder 1 and the coating turntable mechanism 3. The battery gripper assembly 22 is mounted on the transfer bracket 21 to hold the battery. The second suction assembly 23 is mounted on the transfer bracket 21 and spaced apart from the battery gripper assembly 22, and is used to adsorb the Mylar film. By using the battery gripper assembly 22 and the second suction assembly 23 to grip the battery and adsorb the Mylar film respectively, it is convenient to complete the material picking simultaneously and move it to the coating turntable mechanism 3 without separate movement, ensuring the simplicity of the system.

[0078] On the other hand, please see Figure 5In this embodiment, the coating turntable mechanism 3 further includes a mounting turntable 32, which has a station layer and a bearing layer spaced apart along the axial direction. The bearing layer is rotatably arranged around its central axis. Multiple hot-melt stations are sequentially formed on the station layer along the circumference of the bearing layer. The bearing device 31 is sequentially arranged on the bearing layer along the circumference of the bearing layer. The bearing device 31 has a bearing surface, which is used to support the battery and the Mylar film. The coating device is correspondingly arranged at the multiple hot-melt stations to heat-melt the Mylar film onto different sidewalls of the battery.

[0079] In the coating turntable mechanism 3 provided by the present invention, the carrier layer is rotatably arranged around its central axis, the carrier device 31 is installed on the carrier layer, and a hot-melt station is formed on the station layer. During the rotation of the carrier layer, the carrier device 31 passes through multiple station layers in sequence, and a coating device is set on the corresponding station layer. During the operation of the coating turntable mechanism 2, the Mylar film and the battery are first placed on the carrier surface in sequence, and then the carrier layer is controlled to rotate, so that the carrier device 31 moves to multiple hot-melt stations in sequence, and the coating is performed on different parts by multiple coating devices. After the treatment is completed, the battery is removed, and the carrier device 31 returns to its original position by the rotation of the carrier layer so that it can accept the battery and Mylar film again. Multiple carrier devices 31 follow the carrier layer to rotate to the hot-melt station for coating. After the coating is completed, they return to their original position to accept the battery, so that the battery coating can be carried out without interruption and the battery coating efficiency is improved.

[0080] For further details, please refer to Figure 6 The hot-melting station includes a bottom hot-melting position; a first clearance groove is provided on the bearing surface along the axial direction of the bearing layer; the coating device includes a bottom hot-melting component 331, which is located at the bottom hot-melting position and is movably inserted into the first clearance groove along the axial direction of the bearing layer. The bottom hot-melting component 331 moves to hot-melt the Mylar film to the bottom of the battery. In this embodiment, the bearing surface carries the Mylar film and the battery. After the bearing layer rotates to the bottom hot-melting position, the bottom hot-melting component 331 extends out from the first clearance groove to hot-melt the Mylar film onto the bottom of the battery.

[0081] It should be noted that there are multiple bottom heat-melting components 331, which are spaced apart to facilitate simultaneous heat fusion at multiple points and ensure the reliability of bottom heat fusion.

[0082] On the other hand, please see Figure 7The hot-melt station also includes a top hot-melt station; the coating device also includes a top hot-melt device, which includes a clamping and folding assembly 3321 and a top hot-melt component 3322; the clamping and folding assembly 3321 is disposed corresponding to the top hot-melt station to clamp the end of the Mylar film and fold it to the top of the battery; the top hot-melt component 3322 is movably installed on the top hot-melt station along the axial direction of the bearing layer and is disposed opposite to the bearing surface, and is used to hot-melt the Mylar film to the top of the battery. Since the Mylar film needs to wrap the battery, and the Mylar film is a sheet film structure, it needs to be folded so that the Mylar film contacts the side and top surfaces of the battery for hot-melt. In this embodiment, the top hot-melt device includes a clamping and folding assembly 3321 to fold the Mylar film. After folding, the top hot-melt component 3322 hot-melts the Mylar film to adhere it to the battery.

[0083] It should be noted that the clamping and folding assembly 3321 is used to clamp and fold the Mylar film. The clamping and folding assembly can be implemented in various ways, such as by using a robotic arm for folding. Specifically, in this embodiment provided by the present invention, the supporting layer rotates around the central axis of the mounting turntable 32. Taking the axial direction of the mounting turntable 32 and the radial direction pointing towards the clamping and folding assembly as references, the clamping and folding assembly 3321 includes a mounting frame, a movable support, and clamping claws. The mounting frame is positioned corresponding to the top heat-sealing position and is spaced apart from the mounting turntable 32. The movable support is movably mounted on the mounting frame along the axial direction and radial direction of the mounting turntable 32. The clamping claws are mounted on the movable support and are used to clamp the Mylar film. In this embodiment, the clamping claw holds the Mylar film, and the movable bracket first moves axially to lift and bend the Mylar film. At the same time, the movable bracket moves toward the mounting turntable 32, so that the Mylar film adheres to the outer surface of the battery. By moving further toward the mounting turntable 32, the Mylar film continues to bend at the top of the battery, and then adheres to the top of the battery, thus realizing the double bending of the Mylar film.

[0084] It should be noted that the movable bracket can move in various ways. In this embodiment, the clamping and folding assembly also includes a first bracket. The first bracket is radially mounted to the mounting frame along the bearing layer, and the movable bracket is axially mounted to the first bracket.

[0085] The first bracket and the mounting bracket, as well as the movable bracket and the first bracket, are provided with sliding fit structures, including sliding grooves and sliding rails that cooperate with each other.

[0086] Furthermore, the clamping claws have clamping openings extending tangentially along the carrier layer; the clamping claws are rotatably mounted on the movable bracket about the tangential axis of the carrier layer. This allows the clamping claws to hold the Mylar film, and when the movable bracket moves to fold the Mylar film, the clamping claws can rotate simultaneously, ensuring the Mylar film adheres better to the battery. This prevents wrinkles and air bubbles from forming at the clamping point when the Mylar film is bent, as the angle of the clamping claws cannot be changed, thus preventing the Mylar film from adhering tightly to the battery.

[0087] In this embodiment, a rotating shaft is provided on the movable bracket, and the clamping claw is installed on the rotating shaft. The clamping and folding assembly also includes a rotation drive assembly for driving the rotating shaft to rotate.

[0088] Specifically, the rotation drive assembly includes a drive motor and a transmission belt, which is wound around the rotation shaft to drive the gripper to rotate.

[0089] It should be noted that in the embodiments provided by the present invention, there are two clamping claws, and the clamping openings of the two clamping claws are arranged opposite each other so as to clamp both sides of the mylar film at the same time and then fold it.

[0090] Additionally, please see Figure 8 The top heat-sealing device also includes a first holding plate 3323, which is movably mounted to the top heat-sealing position along the axial direction of the bearing layer and is positioned opposite to the bearing surface. In this embodiment, after the mylar film is folded over, a first holding plate 3323 is provided at the top to facilitate the heat sealing of the top heat-sealing component. After the mylar film is folded to the top of the battery, the first holding plate 3323 moves to press the mylar film onto the top of the battery for heat sealing.

[0091] On the other hand, please see Figure 9 The hot-melting station also includes a side hot-melting station; the carrier device 31 is provided with two second clearance grooves spaced apart along the tangential direction of the carrier layer; the coating device also includes two lifting plates 3331 and two side hot-melting components 3332; the two lifting plates 3331 are both located at the side hot-melting station and are respectively movably inserted into the two second clearance grooves along the axial direction of the carrier layer; the two side hot-melting components 3332 are respectively provided corresponding to the two lifting plates 3331 to hot-melt the Mylar film onto the two side walls of the battery. In this embodiment, when the carrier assembly passes through the side hot-melting station, the two lifting plates 3331 are pushed out through the two clearance grooves, pushing and bending the Mylar film so that the Mylar film adheres to the two side walls of the battery, and then the Mylar film is hot-melted onto the battery by the two side hot-melting components 3332.

[0092] Furthermore, the coating device also includes two lower pressure plates 3333, both of which are movably mounted to the side heat-fusion position along the axial direction of the bearing layer. The two lower pressure plates 3333 are positioned opposite to the bearing surface and are respectively positioned corresponding to the two lifting plates 3331. After the lifting plates 3331 adhere the Mylar film to the battery, the lifting plates 3331 need to be retracted to facilitate heat fusion of the Mylar film by the side heat-fusion component 3332. To ensure that the Mylar film remains on the side of the battery after retraction, the lower pressure plates 3333 move towards the bearing surface to clamp the Mylar film, and then the lifting plates 3331 are retracted, ensuring that the Mylar film does not deform due to loss of support, thus preventing heat fusion failure.

[0093] In addition, the coating device also includes a second holding plate 3334, which is movably mounted to the side heat-fusion position along the axial direction of the bearing layer and is disposed opposite to the bearing surface. In this embodiment, the battery is held in place by the second holding plate 3334 to prevent shaking during the heat-fusion process.

[0094] It should be noted that the rotation path of the bearing device 31 is sequentially the bottom coating position, the top coating position, and the side coating position.

[0095] On the other hand, please see Figure 10 ,by Figure 10 The first direction, the second direction, and the third direction are used as references, wherein the first direction and the second direction are perpendicular to each other and are both located in the plane of the bearing surface, and the third direction is perpendicular to the bearing surface; in this embodiment, the bearing device 31 includes a bearing base 311, a clamping structure, and a synchronization structure; a bearing surface is formed on the bearing base 311, and a limiting block is protruded on the bearing surface, the bearing surface is used to support the battery and the battery mylar film; the clamping structure includes a clamping member 312, the clamping member 312 and the limiting block are arranged opposite to each other along the first direction of the bearing surface, the clamping member 312 is movably installed on the bearing base 311 along the first direction and the second direction of the bearing surface, and the clamping member 312 and the limiting block are used to clamp the battery; the synchronization structure is located between the bearing base 311 and the clamping member 312, so that the clamping member 312 moves synchronously along the first direction and the second direction; wherein, the first direction and the second direction are perpendicular to each other.

[0096] In this embodiment, a Mylar film and a battery are placed sequentially on the bearing surface. By moving the clamping member 312 along the first direction, the clamping member 312 presses the battery against the limiting block. After the battery is fixed in a fixed position, the battery and the Mylar film can be thermally bonded. During the partial thermal bonding of the battery, the clamping member 312 is controlled to move along the second direction to form a clearance space and avoid obstructing the film-coating assembly. At the same time, through a synchronous structure, the clamping member 312 moves along both the first and second directions simultaneously, so that the clamping member 312 can simultaneously perform the functions of tightening and loosening the battery and avoiding the battery film, which facilitates the control of the clamping member 312, simplifies the operation process, and eliminates the need to control the clamping member 312 to move in different directions separately.

[0097] For details, please refer to Figure 11 The synchronous structure includes a sliding support 3131, a guide block 3132, and a transmission component 3133. The sliding support 3131 is movably mounted on the bearing seat 311 along the second direction, and the abutment 312 is movably mounted on the sliding support 3131 along the first direction. The guide block 3132 is mounted on the bearing seat 21 and is spaced apart from the sliding support 3131 along the third direction perpendicular to the bearing surface. A guide slope is formed on the guide block 3132, which is perpendicular to the bearing surface and inclined along the second direction. The transmission component 3133 extends along the first direction, with one end of the transmission component 3133 mounted on the abutment 312 and the other end abutting against the guide slope.

[0098] In this embodiment, the transmission member 3133 extends along the first direction and abuts against the guide slope. When the sliding support 3131 moves along the second direction, the transmission member 233 moves on the guide slope. Since the guide slope is inclined along the second direction, a height difference is formed on the guide slope in the first direction. During the movement of the transmission member 3133 along the second direction, it simultaneously moves in the first direction, thereby driving the abutting member 312 to move in the first direction. The mechanical structure enables the abutting member 312 to move synchronously in two directions. The structure is simple and reliable. At the same time, it avoids misoperation caused by separate driving through multiple driving devices or structures.

[0099] Furthermore, the support component 31 also includes a drive structure, which includes a support base 3141 and a drive block 3142; one end of the drive block 3142 is movably mounted on the support base 3141 along the second direction, and the other end abuts against the sliding support 3131 to drive the sliding support 3131 to move along the second direction.

[0100] Furthermore, the drive block 3142 is also movably mounted to the support base 3141 in a third direction perpendicular to the bearing surface, so as to disengage from the sliding support 3131 when no drive is needed.

[0101] On the other hand, the supporting device 31 also includes a limiting device, which includes two movable rods 3151 and a wedge block 3152. The two movable rods 3151 extend movably along a second direction and are installed at intervals along the second direction onto the supporting surface. Each movable rod 3151 has a driving end and a mounting end. The two driving ends are arranged adjacent to each other, and clamping plates are installed on both mounting ends. The two clamping plates are used to clamp the battery. The wedge block 3152 is movably disposed between the two movable rods 3151 along a third direction perpendicular to the supporting surface. A driving inclined surface is formed on the end face of the wedge block relative to the movable rod, and the driving end abuts against the driving inclined surface. In this embodiment, the position of the battery is limited in the first direction by the limiting block and the clamping member 312. In order to ensure the position of the battery in the second direction, the battery is clamped by the two movable rods 3151. When the wedge block 3152 moves, the two movable rods 3151 are driven to move along the second direction at the same time, and the two clamping plates clamp the battery at the same time, so that the battery maintains a relative position in the second direction.

[0102] In addition, multiple suction cups are provided on the bearing surface. This allows the coated battery to be placed on the bearing surface and the battery coating to be held in place, preventing displacement during processing.

[0103] Similarly, the bearing surface is recessed with multiple claw clearance grooves and detection through holes. This allows external claws to place the battery coating and battery without interfering with the bearing surface; the detection through holes allow external detection devices to detect the contact status between the battery and the bottom battery coating, preventing the battery coating from not covering the bottom of the battery.

[0104] Similarly, three adjacent bearing areas are formed on the bearing surface to support different positions of the battery coating. In this embodiment, since the area of ​​the battery coating is larger than the area of ​​the bottom of the battery after it is placed on the bearing surface, the three bearing areas respectively support the portion of the battery coating covering the bottom, the side, and the top of the battery, thus preventing deformation of the battery coating and making it difficult for the coating mechanism to operate the battery coating.

[0105] It should be noted that the suction cup, claw clearance groove and bearing area mentioned above can be selected to exist individually or simultaneously, and no specific restrictions are made here.

[0106] Additionally, please see Figure 12The coating mechanism 4 includes a coating transport line 41, two sets of coating devices 42, and a reversing device 43. The coating transport line 41 carries and transports coated batteries. The two sets of coating devices 42 are located on the same side of the coating transport line and are spaced apart from each other. Both sets of coating devices are used to coat the coated batteries. The reversing device 43 is located on one side of the coating transport line 41 and between the two sets of coating devices 42. The reversing device 43 is used to clamp the coated battery and rotate it to change direction. In this embodiment, after the battery is coated, the sidewalls of the battery are coated by the coating devices, so that multiple sets of coating devices 42 are on the same side, which facilitates maintenance and coating of the battery. In order to ensure that multiple sides of the battery are coated, in this embodiment, a reversing device 43 is provided between the multiple sets of coating devices 42 to change the direction of the battery, so that the coating devices 42 are on the same side, and the coating of all sides of the battery can also be completed.

[0107] It should be noted that in this embodiment, each group of coating devices 42 includes two coating equipment to facilitate coating multiple batteries simultaneously.

[0108] Additionally, it should be noted that the coating transport line 41 extends in a straight line, and the coating device 42 is movably arranged along the extension direction of the coating transport line 41 to facilitate coating the side wall of the battery. During the coating process, the reciprocating movement of the coating device 42 ensures that each part of the battery side wall can be coated by the coating device 42, so as to uniformly coat the side wall of the battery.

[0109] On the other hand, please see Figure 13 It should be noted that the testing mechanism 5 includes a testing base 51 and multiple testing elements 52; a testing space is formed on the testing base 51; the multiple testing elements 52 are arranged around the testing space to test the coated batteries within the testing space. This facilitates testing the batteries after coating is completed, allowing for the rejection of substandard batteries. In this embodiment, the multiple testing elements 52 are arranged around the testing space to allow for testing of the batteries from multiple different directions and angles. When defects are detected, the testing mechanism 5 rejects the batteries as substandard.

[0110] Specifically, the detection base 51 has a through hole for detecting the battery pack, and the detection component 52 includes a bottom detection component to detect the bottom of the battery pack.

[0111] The testing component 52 also includes multiple side testing components arranged around the testing space to facilitate testing of the coated battery.

[0112] It should be noted that the detection base 51 has two detection positions for placing the coated batteries. The two detection positions are staggered along their respective planes so that adjacent batteries will not interfere with each other during detection.

[0113] In this embodiment, after detecting and rejecting NG batteries, only qualified batteries remain on the detection mechanism 5. The qualified batteries are then unloaded by the unloading mechanism 6 to be stored and transported to the outside world.

[0114] It should be noted that in this embodiment, the unloading mechanism 6 includes unloading grippers, which clamp and transport qualified batteries on the detection base 51. The structure is simple and reliable.

[0115] On the other hand, the battery pack production line 100 provided by the present invention also includes an NG rejection line, which is used to accept unqualified batteries rejected by the feeding mechanism 1 and the unloading mechanism 6 and transport them outward so as to facilitate subsequent rework operations on the unqualified batteries.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery pack production line, characterized in that, It includes a feeding mechanism, a transfer mechanism, a wrapping turntable mechanism, a coating mechanism, a testing mechanism, and a discharging mechanism connected in sequence; The feeding mechanism is used to group batteries and to feed the grouped batteries and the Mylar film. The transfer mechanism is used to transfer the battery and the Mylar film provided by the feeding mechanism to the coating turntable mechanism; The coating turntable mechanism includes multiple coating devices and a support device that rotates along the axial direction of the coating turntable mechanism. Each support device passes through the coating devices in sequence, so that the mylar film on the support device is thermally melted onto the peripheral walls of the battery to form a coated battery. The coating mechanism is used to coat the sidewalls of the coated batteries fed by the coating turntable mechanism. The testing agency is used to test the coated batteries after they have been coated with adhesive, and to reject unqualified coated batteries as NG (Not Good). The feeding mechanism is used to transfer and feed the tested coated batteries. The supporting device includes: A support base has a support surface formed thereon, and a limiting block is protruding on the support surface. The support surface is used to support the battery and the mylar membrane. A clamping structure includes a clamping member, which is disposed opposite to the limiting block along a first direction of the bearing surface. The clamping member is movably mounted to the bearing seat along the first direction and a second direction of the bearing surface, and the clamping member and the limiting block are used to clamp the battery; and... A synchronization structure is provided between the support base and the abutment member to enable the abutment member to move synchronously along the first direction and the second direction; wherein the first direction and the second direction are perpendicular to each other; The synchronous structure includes a sliding support, a guide block, and a transmission component; the sliding support is movably mounted on the bearing seat along the second direction, and the abutment is movably mounted on the sliding support along the first direction; the guide block is mounted on the bearing seat and is spaced apart from the sliding support along the third direction perpendicular to the bearing surface, and a guide slope is formed on the guide block, which is perpendicular to the bearing surface and inclined along the second direction; the transmission component extends along the first direction, with one end mounted on the abutment and the other end abutting against the guide slope.

2. The battery pack production line according to claim 1, characterized in that, The transfer mechanism includes a battery dispensing position; The feeding mechanism includes: A battery pairing device for pairing two batteries; and, A battery transport line is used to receive the assembled batteries and transport them to the transfer mechanism.

3. The battery pack production line according to claim 2, characterized in that, The battery pack assembly includes: The clamping assembly includes two first clamping portions, which are used to clamp the battery; A conveying component is used to carry the battery held by the first clamping part and move the battery to a first target position or a second target position; A detection component is used to detect the battery at the first target location to determine whether the battery is a qualified battery or a unqualified battery; The cache component includes a second clamping portion for clamping the qualified battery located at the first target position; and... A transplanting assembly for transferring two qualified batteries at the second target location to the battery transport line.

4. The battery pack production line according to claim 1, characterized in that, The transfer mechanism also includes a film-coated material handling station; The feeding mechanism also includes: A film-coated storage device, wherein a storage area is formed on the film-coated storage device, and the storage area is used to place and store the mylar film; and, A coating transport device for conveying mylar film between the storage area and the coating dispensing station.

5. The battery pack production line according to claim 4, characterized in that, The film-coated transport device includes: A first suction assembly includes an adsorption disk for adsorbing and removing the mylar membrane from the storage area; and... A coating carrier base has a placement surface for holding the mylar film taken out from the suction assembly. The coating carrier base is reciprocally disposed between the suction assembly and the coating pick-up position to transport the mylar film to the coating pick-up position.

6. The battery pack production line according to claim 1, characterized in that, The transfer mechanism includes: A transfer bracket is used to reciprocate between the feeding mechanism and the coating turntable mechanism; A battery gripper assembly, mounted on the transfer bracket, for holding the battery; and, The second suction component is installed on the transfer bracket and is spaced apart from the battery gripper assembly. The second suction component is used to adsorb the mylar membrane.

7. The battery pack production line according to claim 1, characterized in that, The coating turntable mechanism also includes an installation turntable, which has a station layer and a bearing layer spaced apart along the axial direction. The bearing layer is rotatably arranged around its central axis, and multiple hot melt stations are sequentially formed on the station layer along the circumference of the bearing layer. Multiple of the aforementioned support devices are sequentially arranged on the support layer along the circumference of the support layer; Multiple coating devices are correspondingly disposed at multiple hot-melt stations to hot-melt the mylar film onto different sidewalls of the battery. The bearing layer rotates, causing the bearing device to pass through multiple hot-melt stations in sequence.

8. The battery pack production line according to claim 1, characterized in that, The coating mechanism includes: A coating transport line, which is used to carry and transport the coated battery; Two sets of coating devices are located on the same side of the coating transport line and are spaced apart from each other. Both sets of coating devices are used to coat the coated battery; and, A reversing device is located on one side of the coating transport line and between the two sets of coating devices. The reversing device is used to clamp the coated battery and rotate it.

9. The battery pack production line according to claim 1, characterized in that, The testing institutions include: A detection base having a detection space formed thereon; and, Multiple detection elements are arranged around the detection space to detect the coated battery located within the detection space.

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