Decorative film pasting mechanism applied to BC battery piece and series connection machine

Abstract

The invention discloses a decorative film pasting mechanism applied to BC battery pieces and a series machine. The decorative film pasting mechanism comprises a feeding assembly; the fixed-length traction assembly is arranged on the side edge of the feeding assembly; the film preparation platform is arranged between the feeding assembly and the fixed-length traction assembly; the transferring and attaching assembly is movably arranged above the film preparation platform; the feeding assembly comprises a first supporting mechanism. The unwinding mechanisms are sequentially arranged on the first supporting mechanism; the multiple film temporary storage mechanisms and the multiple cutting mechanisms are movably arranged on the first supporting mechanism in sequence; and the multiple film delivery mechanisms are arranged between the multiple film temporary storage mechanisms and the corresponding cutting-off mechanisms correspondingly. Through cooperation of the feeding assembly, the fixed-length traction assembly, the film preparation platform and the transferring and attaching assembly, a plurality of decorative films are synchronously and automatically attached to the gap between every two adjacent BC battery pieces, and the problem that existing manual decorative film attaching is low in efficiency is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of series connection machines, and more specifically, to a decorative film sticking mechanism and a series connection machine applied to BC battery cells. Background Art

[0002] Traditional photovoltaic cells are usually pressed together with corresponding welding ribbons and grid lines of photovoltaic cells, and the front and back sides of adjacent cells are cross-connected in series. The welding ribbons and cells are then welded together by heating with a welding lamp to form a cell string. Regardless of whether this type of cell string is illuminated from the front or back, the part of the area blocked by the welding ribbon cannot be illuminated, which will reduce the photoelectric conversion efficiency. In order to further improve the photoelectric conversion efficiency, BC series connection technology came into being. BC series connection technology is a series connection technology in which the welding ribbons are only connected in series on the back side of the cell, and the front light-receiving side is not blocked. Compared with the traditional photovoltaic cell string welding technology, this technology can further improve the photoelectric conversion efficiency of its photovoltaic modules. The function of the photovoltaic cell BC series connection machine is to press the welding tape and the grid line on the back of the BC cell together, then connect the adjacent cells in series at a certain interval, and then align and bond the welding tape and the BC cell grid line together through curing glue to form a BC cell string; however, there is a certain gap between the BC cells, and the welding tape connected to the back can still be seen in the direction of front light, which affects the appearance of the finished photovoltaic module. Therefore, before welding the welding tape on the back of the cell, a layer of black decorative film with backing glue is pasted on the gap between the BC cells to cover the welding tape and make the final photovoltaic module more beautiful.

[0003] In the existing BC battery cell series connection technology, a decorative film is generally manually attached to the gap between the BC battery cells. However, the manual attachment efficiency is extremely low and it is easy to damage the BC battery cells. At the same time, manual labor requires a long period of training to complete this work. Therefore, a decorative film attachment mechanism and a series connection machine for BC battery cells are provided to solve the above problems. Summary of the invention

[0004] One of the purposes of the present invention is to provide a decorative film pasting mechanism and a series connection machine applied to BC battery cells, so as to solve the problem of low efficiency of manual pasting of decorative films between adjacent BC battery cells.

[0005] The present invention provides a decorative film sticking mechanism and a series connection machine for BC battery cells, which can be realized by the following technical solutions: The present invention discloses a decorative film pasting mechanism for BC battery cells, comprising a feeding component; a fixed-length traction component, which is arranged at the side of the feeding component, and the fixed-length traction component synchronously performs a traction operation on multiple decorative films on the feeding component; a film preparation platform, which is arranged between the feeding component and the fixed-length traction component, and the film preparation platform performs an adsorption operation on multiple fixed-length decorative films pulled by the fixed-length traction component; a transfer and attachment component, which is movably arranged above the film preparation platform, and the transfer and attachment component synchronously transfers multiple fixed-length decorative films on the film preparation platform to the gap between the backs of two adjacent BC battery cells for automatic heating and attachment; Among them, the feeding assembly includes a first supporting mechanism; a plurality of unwinding mechanisms arranged in sequence on the first supporting mechanism, on which decorative film rolls are respectively arranged; a plurality of film buffering mechanisms and a plurality of cutting mechanisms respectively and movably arranged on the first supporting mechanism, the film buffering mechanisms buffer the decorative films on the corresponding unwinding mechanisms, and the cutting mechanisms cut the fixed-length decorative films; and a plurality of film delivery mechanisms respectively arranged between the plurality of film buffering mechanisms and the corresponding cutting mechanisms, and the film delivery mechanisms deliver the cut decorative films.

[0006] In one embodiment, the film buffer mechanism includes a first guide wheel and a second guide wheel which are rotatably arranged on the first support mechanism respectively; a floating wheel structure is arranged between the first guide wheel and the second guide wheel; the floating wheel structure includes a support frame which is fixedly arranged on the first support mechanism; a guide rod vertically fixedly arranged on the support frame; a connecting block slidably arranged on the guide rod; and a floating wheel rotatably arranged on the connecting block, and the decorative film roll is arranged on the film delivery mechanism through the first guide wheel, the floating wheel, and the second guide wheel in sequence.

[0007] In one embodiment, the film delivery mechanism includes a transverse driving structure, which is fixedly arranged on the first supporting mechanism; two guide rails are laterally symmetrically arranged on the first supporting mechanism; and adsorption blocks are respectively slidably arranged on the two guide rails at both ends and are transmission-connected to the transverse driving structure, and the adsorption blocks perform adsorption operations on multiple decorative films arranged thereon.

[0008] In one embodiment, the fixed-length traction assembly includes a second support mechanism, which is fixedly arranged on the side of the first support mechanism; a driving transmission mechanism movably arranged on the second support mechanism; and a clamping mechanism slidably arranged on the second support mechanism and transmission-connected to the driving transmission mechanism, which can clamp the head ends of multiple fixed-length decorative films at the same time.

[0009] In one embodiment, the drive transmission mechanism includes a mounting seat, which is fixedly disposed on the second support mechanism; a first driving body disposed on the mounting seat; a first transmission shaft rotatably disposed on the second support mechanism; a first transmission belt transmission-connected between the first driving body and the first transmission shaft; and two first transmission structures movably and symmetrically disposed on the second support mechanism and respectively transmission-connected to the first transmission shaft.

[0010] In one embodiment, the first transmission structure includes a first transmission wheel and a second transmission wheel which are relatively rotatably arranged on the second support mechanism, the first transmission wheel being transmission-connected to the first transmission shaft; and a second transmission belt which is transmission-arranged between the first transmission wheel and the second transmission wheel.

[0011] In one embodiment, the film preparation platform includes a third supporting mechanism, which is fixedly arranged between the first supporting mechanism and the second supporting mechanism; a lifting mechanism arranged on the third supporting mechanism; and an adsorption platform which is driven and arranged on the lifting mechanism and can perform adsorption operations on multiple fixed-length decorative films.

[0012] In one embodiment, the transfer and attachment component includes a lateral movement mechanism, which is arranged above the film preparation platform; a longitudinal movement mechanism slidably arranged on the lateral movement mechanism; and a plurality of adsorption and heating mechanisms respectively arranged under the longitudinal movement mechanism, wherein the plurality of adsorption and heating mechanisms can simultaneously perform adsorption operations on a plurality of fixed-length decorative films arranged on the film preparation platform and can respectively perform heating operations on the plurality of fixed-length decorative films.

[0013] In one embodiment, the adsorption and heating mechanism is provided with a plurality of vacuum suction cups, and the vacuum suction cups are provided with a heating element, through which the back glue of the fixed-length decorative film is heated and softened to form adhesion; a flexible element is provided at the contact position between the vacuum suction cup and the BC battery cell.

[0014] A series connection machine for BC cells of the present invention comprises a cell welding ribbon conveying device, the cell welding ribbon conveying device comprises any one of the above-mentioned decorative film attaching mechanisms, the decorative film attaching mechanism automatically attaches decorative films to the gaps between a plurality of BC cells arranged on the cell welding ribbon conveying device; It also includes a cell feeding device, a cell glue applying device, a cell conveying device, a cell handling device, a solder strip feeding device, a solder strip laying device and a UV curing device; Among them, the cell loading device performs loading operations on BC cell sheets; the cell gluing device performs gluing operations on the BC cell sheets conveyed by the cell loading device; the cell conveying device performs conveying operations on the BC cell sheets after gluing; the cell transporting device transports the glued BC cell sheets at the output end of the cell conveying device to the input end of the cell solder tape conveying device; the solder tape loading device places the solder tape roll to provide the solder tape required for battery string welding; the solder tape laying device lays the solder tape of a predetermined length on the glued BC cell sheets at the input end of the cell solder tape conveying device; the UV curing device is arranged above the cell solder tape conveying device, and the cell solder tape conveying device conveys the glued BC cell sheets laid with the solder tape to the bottom of the UV curing device for curing operations.

[0015] Compared with the prior art, the beneficial effects of the decorative film sticking mechanism and series connection machine applied to BC battery cells of the present invention are as follows: The present invention discloses a decorative film sticking mechanism and a series machine for BC battery cells, which realize automatic unwinding and feeding operations of multiple decorative film rolls, automatic traction operations of multiple fixed-length decorative films by respectively arranging a feeding component, a fixed-length traction component, a film preparation platform, and an adsorption and fixation operation of the decorative film after cutting, and a transfer and attachment component, which realizes automatic adsorption of the cut fixed-length decorative film from the film preparation platform and transports it to an attachment station for heating and attachment. The fully automatic coordination of the feeding component, the fixed-length traction component, the film preparation platform, and the transfer and attachment component avoids the uncontrollability of manual attachment, greatly improves the production efficiency of photovoltaic modules, reduces the operating cost of enterprises, and effectively solves the problem of low efficiency of existing manual decorative film sticking. At the same time, the adsorption and heating mechanism heats and softens the back glue of the fixed-length decorative film during transportation to form adhesion, so that the decorative film fits the side of the BC battery cell, thereby better completing the automatic attachment operation of the decorative film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a decorative film pasting mechanism applied to BC battery cells of the present invention, including a feeding component, a fixed-length traction component, a film preparation platform and a transfer and pasting component; Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the feeding assembly shown; Figure 3 yes Figure 2 The front structural schematic diagram of the feeding assembly shown; Figure 4 yes Figure 1 A three-dimensional structural schematic diagram of a fixed-length traction assembly is shown; Figure 5 yes Figure 1 Schematic diagram of the three-dimensional structure of the membrane preparation platform shown; Figure 6 yes Figure 1 A schematic diagram of the three-dimensional structure of the transfer attachment component shown.

[0018] Indications in the figure: 100, decorative film sticking mechanism; 10, feeding assembly; 11, first supporting mechanism; 12, unwinding mechanism; 121, supporting rod; 122, material tray; 13, film buffer mechanism; 131, first guide wheel; 132, floating wheel structure; 133, second guide wheel; 14, cutting mechanism; 141, telescopic cylinder; 142, cutting tool; 15, film delivery mechanism; 20, fixed-length traction assembly; 21, second supporting mechanism; 221, first slide rail; 22, driving transmission mechanism; 221, mounting seat; 222, first driving body; 223, first transmission belt; 224, first transmission shaft; 225, first transmission structure; 2251, first transmission Wheel; 2252, second transmission wheel; 2253, second transmission belt; 23, clamping mechanism; 231, first sliding rod; 232, clamping claw structure; 30, membrane preparation platform; 31, third supporting mechanism; 311, guide block; 32, lifting mechanism; 33, adsorption platform; 331, second slide rail; 332, adsorption hole; 40, transfer attachment component; 41, lateral movement mechanism; 411, fixing rod; 4111, third slide rail; 412, second driving body; 413, second transmission shaft; 414, second transmission structure; 42, longitudinal movement mechanism; 421, second sliding rod; 422, lifting drive body; 423, connecting rod; 43, adsorption heating mechanism. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0021] See also Figure 1 As shown, a decorative film sticking mechanism 100 applied to BC battery cells of the present invention is mainly applied to the process of automatically sticking decorative films between adjacent BC battery cells, and includes a feeding component 10, a fixed-length traction component 20, a film preparation platform 30 and a transfer and attachment component 40; the feeding component 10 is a decorative film feeding body; the fixed-length traction component 20 is arranged on the side of the feeding component 10, and the fixed-length traction component 20 synchronously performs a traction operation on multiple decorative film rolls on the feeding component 10; the film preparation platform 30 is arranged between the feeding component 10 and the fixed-length traction component 20, and the fixed-length traction component 20 pulls the fixed-length decorative film on the feeding component 10 to the film preparation platform 30 for adsorption preparation operation; the transfer and attachment component 40 is movably arranged above the film preparation platform 30, and it transfers the fixed-length decorative film on the film preparation platform 30 to the gap between the backs of two adjacent BC battery cells for automatic attachment operation.

[0022] See also Figure 1-Figure 3 As shown, in this embodiment, the feeding component 10 includes a first supporting mechanism 11, a plurality of unwinding mechanisms 12, a plurality of film buffering mechanisms 13, a plurality of cutting mechanisms 14 and a film delivery mechanism 15; the first supporting mechanism 11 is a supporting body; a plurality of unwinding mechanisms 12 are sequentially arranged on the first supporting mechanism 11, and decorative film rolls are respectively arranged thereon; a plurality of film buffering mechanisms 13 are sequentially and movably arranged on the first supporting mechanism 11, and the decorative films on the plurality of unwinding mechanisms 12 pass through the corresponding film buffering mechanisms 13 respectively, and the film buffering mechanisms 13 are used to cache a certain length of the decorative film after being pulled by the fixed-length pulling component 20, in preparation for subsequent pulling; a plurality of cutting mechanisms 14 are sequentially arranged on the first supporting mechanism 11, which cut the decorative film after the fixed-length pulling by the fixed-length pulling component 20; a plurality of film delivery mechanisms 15 are respectively arranged between the corresponding film buffering mechanisms 13 and the cutting mechanisms 14, and are used to send out a length of the decorative film after being cut by the cutting mechanism 14, so as to reserve a clamping position for the subsequent decorative film to be clamped by the fixed-length pulling component 20.

[0023] See also Figure 2 and Figure 3As shown, specifically, the unwinding mechanism 12 includes a support rod 121 and a material tray 122; the support rod 121 is fixedly arranged on the first support mechanism 11; the material tray 122 is rotatably arranged on the support rod 121, and the decorative film roll is arranged on the material tray 122. In this embodiment, the film buffer mechanism 13 includes a first guide wheel 131, a floating wheel structure 132 and a second guide wheel 133; the first guide wheel 131 and the second guide wheel 133 are rotatably arranged on the first support mechanism 11, the floating wheel structure 132 is arranged between the first guide wheel 131 and the second guide wheel 133, and the decorative film roll is arranged on the film delivery mechanism 15 through the first guide wheel 131, the floating wheel structure 132 and the second guide wheel 133 in sequence. Specifically, the floating wheel structure 132 includes a support frame, a guide rod, a connecting block and a floating wheel; the support frame is fixedly arranged on the first support mechanism 11; the guide rod is vertically fixedly arranged on the support frame; the connecting block is slidably arranged on the guide rod, and it can move longitudinally on the guide rod, and the guide rod performs limiting and guiding operations on the longitudinal movement of the connecting block; the floating wheel is rotatably arranged on the connecting block, and the decorative film roll is arranged on the film delivery mechanism 15 through the first guide wheel 131, the floating wheel, and the second guide wheel 133 in sequence.

[0024] See also Figure 2 and Figure 3 As shown, specifically, the cutting mechanism 14 includes a telescopic cylinder 141 and a cutting tool 142; the telescopic cylinder 141 is fixedly arranged on the first supporting mechanism 11; the cutting tool 142 is transmission-connected to the telescopic cylinder 141, and the telescopic cylinder 141 drives the cutting tool 142 to cut the decorative film, thereby facilitating the fixed-length traction assembly 20 to pull the fixed-length decorative film onto the film preparation platform 30. Specifically, the film delivery mechanism 15 includes a transverse driving structure, two guide rails and a plurality of adsorption blocks; the transverse driving structure is fixedly arranged on the first supporting mechanism 11; the two guide rails are transversely symmetrically arranged on the first supporting mechanism 11; the two ends of the adsorption block are respectively slidably arranged on the corresponding guide rails and transmission-connected to the transverse driving structure, and the transverse driving structure drives the adsorption block to move transversely on the guide rail, and the adsorption block can adsorb the plurality of decorative films arranged thereon, thereby facilitating the delivery of a length of the decorative film cut by the cutting mechanism 14, and reserving a clamping position for the subsequent decorative film to be clamped by the fixed-length traction assembly 20.

[0025] See also Figure 1 and Figure 4As shown, in this embodiment, the fixed-length traction assembly 20 includes a second support mechanism 21, a driving transmission mechanism 22 and a clamping mechanism 23; the second support mechanism 21 is fixedly arranged on the side of the first support mechanism 11; the driving transmission mechanism 22 is movably arranged on the second support mechanism 21; the clamping mechanism 23 is slidably arranged on the second support mechanism 21 and is transmission-connected to the driving transmission mechanism 22, the clamping mechanism 23 can clamp the head ends of multiple fixed-length decorative films at the same time, the driving transmission mechanism 22 drives the clamping mechanism 23 to move on the second support mechanism 21, thereby clamping and pulling multiple fixed-length decorative films onto the film preparation platform 30 at the same time.

[0026] See also Figure 4 As shown, in this embodiment, the second support mechanism 21 is symmetrically fixed with a first slide rail 221, and the two ends of the clamping mechanism 23 are respectively slidably arranged on the corresponding first slide rail 221. The driving transmission mechanism 22 includes a mounting seat 221, a first driving body 222, a first transmission belt 223, a first transmission shaft 224, and two first transmission structures 225; the mounting seat 221 is fixedly arranged on the second support mechanism 21; the first driving body 222 is arranged on the mounting seat 221; the first transmission shaft 224 is rotatably arranged on the second support mechanism 21; the first transmission belt 223 is transmission-connected between the first driving body 222 and the first transmission shaft 224, and the first driving body 222 drives the first transmission shaft 224 in the second support mechanism through the first transmission belt 223. The two first transmission structures 225 are movably and symmetrically arranged on the second supporting mechanism 21 and are respectively connected to the first transmission shaft 224. The first transmission shaft 224 synchronously drives the two first transmission structures 225 to rotate on the second supporting mechanism 21. The two ends of the clamping mechanism 23 are respectively arranged on the corresponding first transmission structures 225. The first driving body 222 drives the clamping mechanism 23 to move horizontally through the first transmission belt 223, the first transmission shaft 224, and the two first transmission structures 225 in sequence, thereby realizing the traction operation of the fixed-length decorative film.

[0027] See also Figure 4As shown, specifically, the first driving body 222 includes a transmission connection servo motor and a reducer, the lateral movement accuracy of the clamping mechanism 23 is ensured by the servo motor, and the output torque of the servo motor is increased while the reducer is used to reduce the speed of the servo motor; the first transmission structure 225 includes a first transmission wheel 2251, a second transmission wheel 2252 and a second transmission belt 2253; the first transmission wheel 2251 and the second transmission wheel 2252 are relatively rotatably arranged on the second support mechanism 21, and the first transmission wheel 2251 is transmission-connected with the first transmission shaft 224; the second transmission belt 2253 is transmission-arranged between the first transmission wheel 2251 and the second transmission wheel 2252, and one end of the clamping mechanism 23 is arranged on the second transmission belt 2253. In this embodiment, the clamping mechanism 23 includes a first sliding rod 231 and a plurality of clamping claw structures 232; the two ends of the first sliding rod 231 are respectively arranged on the corresponding first transmission structure 225; the plurality of clamping claw structures 232 are sequentially arranged on the first sliding rod 231, and the corresponding fixed-length decorative films are clamped by the plurality of clamping claw structures 232. Specifically, the clamping structure 232 includes a clamping cylinder and two clamping jaws. The clamping cylinder is arranged on the first sliding rod 231; the two clamping jaws are arranged opposite to each other and are respectively connected to the clamping cylinder in transmission. The clamping cylinder synchronously drives the two clamping jaws to clamp or release the upper and lower sides of the decorative film.

[0028] See also Figure 1 and Figure 5 As shown, in this embodiment, the film preparation platform 30 includes a third support mechanism 31, a lifting mechanism 32 and an adsorption platform 33; the third support mechanism 31 is fixedly arranged between the first support mechanism 11 and the second support mechanism 21; the lifting mechanism 32 is arranged on the third support mechanism 31; the adsorption platform 33 is transmission-arranged on the lifting mechanism 32 and can perform adsorption operations on multiple fixed-length decorative films, and the lifting mechanism 32 drives the adsorption platform 33 to move in the longitudinal direction, thereby cooperating with the transfer attachment component 40 to perform transfer operations.

[0029] See also Figure 5 As shown, specifically, two guide blocks 31 are symmetrically arranged longitudinally on the third support mechanism 31, and the two ends of the adsorption platform 33 are respectively slidably arranged on the corresponding guide blocks 31, and the adsorption platform 33 is guided to perform lifting and lowering movements through the guide blocks 31; the lifting mechanism 32 adopts the existing technology, so its specific structure and working process are not described here, as long as it meets the requirements of this application. Specifically, second slide rails 331 are respectively vertically arranged on the opposite sides of the adsorption platform 33, and the two second slide rails 331 are respectively vertically slidably arranged on the corresponding guide blocks 31; a plurality of adsorption holes 332 are arranged through the adsorption platform 33, and the fixed-length decorative film arranged on the adsorption platform 33 is adsorbed and fixed through the adsorption holes 332 to prevent the fixed-length decorative film arranged on the adsorption platform 33 from deflecting.

[0030] See also Figure 1 and Figure 6 As shown, in the present embodiment, the transfer and attachment component 40 includes a transverse movement mechanism 41, a longitudinal movement mechanism 42 and a plurality of adsorption and heating mechanisms 43; the transverse movement mechanism 41 is arranged above the adsorption platform 33; the longitudinal movement mechanism 42 is slidably arranged on the transverse movement mechanism 41, and the transverse movement mechanism 41 drives the longitudinal movement mechanism 42 to move transversely above the adsorption platform 33; the plurality of adsorption and heating mechanisms 43 are respectively arranged below the longitudinal movement mechanism 42, and the plurality of adsorption and heating mechanisms 43 can synchronously perform adsorption operations on the plurality of fixed-length decorative films arranged on the adsorption platform 33 and can respectively perform heating operations on the plurality of fixed-length decorative films, and the transverse movement mechanism 41 and the longitudinal movement mechanism 42 cooperate to drive the adsorption and heating mechanism 43 to move in the XY axis direction, so that the plurality of fixed-length decorative films on the adsorption platform 33 are synchronously transferred to the BC battery string for attachment operations.

[0031] See also Figure 6 As shown, in this embodiment, the transverse movement mechanism 41 includes two fixed rods 411, a second driving body 412, a second transmission shaft 413 and two second transmission structures 414; the two fixed rods 411 are arranged relatively parallel and both of them are fixedly arranged above the membrane preparation platform 30; the second driving body 412 is arranged on one of the fixed rods 411; the second transmission shaft 413 is rotatably arranged between the two fixed rods 411 and is transmission-connected to the second driving body 412, and the second driving body 412 drives the second transmission shaft 413 to rotate between the two fixed rods 411; the two second transmission structures 414 are respectively arranged on the corresponding fixed rods 411 and are respectively transmission-connected to the second transmission shaft 413, and the two ends of the longitudinal movement mechanism 42 are respectively arranged on the corresponding second transmission structures 414, and the second driving body 412 drives the longitudinal movement mechanism 42 to move transversely through the second transmission shaft 413 and the two second transmission structures 414 in turn. Specifically, a third slide rail 4111 is laterally fixed on the fixed rod 411, and both ends of the longitudinal movement mechanism 42 are respectively slidably set on the corresponding third slide rails 4111; the structures of the second driving body 412 and the second transmission structure 414 are respectively similar to the structures of the first transmission shaft 224 and the first transmission structure 225, so their specific structures are not repeated here.

[0032] See also Figure 6As shown, specifically, the longitudinal movement mechanism 42 includes a second sliding rod 421, a lifting drive body 422 and a connecting rod 423; the two ends of the second sliding rod 421 are respectively arranged on the corresponding second transmission structure 414, and the second driving body 412 drives the second sliding rod 421 to perform horizontal linear motion on the two third slide rails 4111 through the second transmission shaft 413 and the two second transmission structures 414 in turn; the lifting drive body 422 is arranged on the second sliding rod 421; the connecting rod 423 is arranged below the lifting drive body 422, which drives the connecting rod 423 to move longitudinally, and multiple adsorption and heating mechanisms 43 are arranged on the connecting rod 423 in turn, and the multiple adsorption and heating mechanisms 43 are synchronously driven to move in the XY axis direction through the cooperation of the horizontal movement mechanism 41 and the lifting drive body 422. Specifically, a plurality of vacuum suction cups are provided on the adsorption and heating mechanism 43, and a heating element is provided on the vacuum suction cup. The heating element heats and softens the adhesive on the back of the fixed-length decorative film to form adhesion, so that the decorative film and the side of the BC battery cell are bonded together. At the same time, a flexible element is provided at the contact position between the vacuum suction cup and the BC battery cell, and the flexible element is elastically contacted and connected with the side of the BC battery cell, thereby effectively preventing damage to the BC battery cell and protecting the BC battery cell.

[0033] A series connection machine for BC cells of the present invention comprises a cell welding ribbon conveying device, the cell welding ribbon conveying device comprises any one of the above-mentioned decorative film attaching mechanisms 100, the decorative film attaching mechanism automatically attaches decorative films to the gaps between a plurality of BC cells arranged on the cell welding ribbon conveying device; It also includes a cell feeding device, a cell glue applying device, a cell conveying device, a cell handling device, a solder strip feeding device, a solder strip laying device and a UV curing device; Among them, the cell loading device loads the BC cell; the cell gluing device applies glue to the BC cell conveyed by the cell loading device; the cell conveying device conveys the BC cell after gluing; the cell transporting device transports the glued BC cell at the output end of the cell conveying device to the input end of the cell solder tape conveying device; the solder tape loading device places the solder tape roll to provide the solder tape required for battery string welding; the solder tape laying device lays the solder tape of a predetermined length on the glued BC cell at the input end of the cell solder tape conveying device; the UV curing device is arranged above the cell solder tape conveying device, and the cell solder tape conveying device transports the glued BC cell with the solder tape laid to the bottom of the UV curing device for curing.

[0034] It should be noted that the specific working process of the decorative film sticking mechanism and the series connection machine applied to BC battery cells of the present invention is as follows: the fixed-length traction component 20 synchronously pulls the decorative films on the multiple unwinding mechanisms 12 to the adsorption platform 33 for adsorption, and then the multiple cutting mechanisms 14 cut the corresponding fixed-length decorative films, and then the multiple film delivery mechanisms 13 and the corresponding film buffer mechanisms 13 cooperate to synchronously pull the decorative films on the multiple unwinding mechanisms 12, so as to facilitate the fixed-length traction component 20 to clamp the multiple decorative films again; finally, the lifting mechanism 32 drives the adsorption platform 33 to move upward, and cooperates with the transfer and attachment component 40 that moves to the top of the adsorption platform 33, and the corresponding fixed-length decorative films on the adsorption platform 33 are adsorbed by the multiple adsorption heating mechanisms 43 respectively, and then the lateral movement mechanism 41 and the longitudinal movement mechanism 42 cooperate to transfer the multiple adsorption heating mechanisms 43 adsorbed with the fixed-length decorative films to the top of the BC battery string, and at the same time, the adsorption heating mechanism 43 heats and softens the back glue of the fixed-length decorative film to form adhesion, so that the decorative film is attached to the side of the BC battery cell, thereby completing the automatic attachment operation of the decorative film.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A decorative film sticking mechanism for BC battery cells, characterized in that: include: Feeding components; A fixed-length traction assembly is arranged at the side of the feeding assembly, and the fixed-length traction assembly synchronously performs a traction operation on a plurality of decorative films on the feeding assembly; A film preparation platform, which is arranged between the feeding assembly and the fixed-length traction assembly, and the film preparation platform performs an adsorption operation on a plurality of fixed-length decorative films pulled by the fixed-length traction assembly; A transfer and attachment component is movably arranged above the film preparation platform, and the transfer and attachment component synchronously transfers a plurality of fixed-length decorative films on the film preparation platform to the gap between the backs of two adjacent BC battery sheets for automatic heating and attachment; The feeding assembly includes a first supporting mechanism; a plurality of unwinding mechanisms sequentially arranged on the first supporting mechanism, on which decorative film rolls are respectively arranged; a plurality of film buffering mechanisms and a plurality of cutting mechanisms respectively and sequentially arranged on the first supporting mechanism, wherein the film buffering mechanisms perform a buffering operation on the decorative films on the corresponding unwinding mechanisms, and the cutting mechanisms perform a cutting operation on the fixed-length decorative films; A plurality of film delivery mechanisms are respectively arranged between the plurality of film buffer mechanisms and the corresponding cutting mechanisms, and the film delivery mechanisms perform a delivery operation on the cut decorative film.

2. The decorative film sticking mechanism for BC battery cells according to claim 1, characterized in that: The film buffer mechanism comprises a first guide wheel and a second guide wheel respectively rotatably arranged on the first support mechanism; a floating wheel structure arranged between the first guide wheel and the second guide wheel; the floating wheel structure comprises a support frame fixedly arranged on the first support mechanism; a guide rod vertically fixedly arranged on the support frame; and a connecting block slidably arranged on the guide rod; The floating wheel disposed on the connecting block is rotated, and the decorative film roll is sequentially disposed on the film delivery mechanism through the first guide wheel, the floating wheel, and the second guide wheel.

3. The decorative film sticking mechanism for BC battery cells according to claim 1, characterized in that: The film delivery mechanism includes a transverse driving structure, which is fixedly arranged on the first supporting mechanism; two guide rails that are laterally symmetrically arranged on the first supporting mechanism; and adsorption blocks that are slidably arranged on the two guide rails at both ends and are transmission-connected to the transverse driving structure, and the adsorption blocks perform adsorption operations on multiple decorative films arranged thereon.

4. The decorative film sticking mechanism for BC battery cells according to claim 1, characterized in that: The fixed-length traction assembly includes a second supporting mechanism, which is fixedly arranged on the side of the first supporting mechanism; a driving transmission mechanism movably arranged on the second supporting mechanism; and a clamping mechanism slidably arranged on the second supporting mechanism and transmission-connected to the driving transmission mechanism, which can clamp the head ends of multiple fixed-length decorative films at the same time.

5. The decorative film sticking mechanism for BC battery cells according to claim 4, characterized in that: The driving transmission mechanism comprises a mounting seat fixedly arranged on the second supporting mechanism; a first driving body arranged on the mounting seat; and a first transmission shaft rotatably arranged on the second supporting mechanism. A first transmission belt transmission-connected between the first driving body and the first transmission shaft; and two first transmission structures movably and symmetrically arranged on the second supporting mechanism and transmission-connected to the first transmission shaft respectively.

6. The decorative film sticking mechanism for BC battery cells according to claim 5, characterized in that: The first transmission structure includes a first transmission wheel and a second transmission wheel which are relatively rotatably arranged on the second supporting mechanism, the first transmission wheel being in transmission connection with the first transmission shaft; and a second transmission belt which is transmission-arranged between the first transmission wheel and the second transmission wheel.

7. The decorative film sticking mechanism for BC battery cells according to claim 4, characterized in that: The film preparation platform includes a third support mechanism, which is fixedly arranged between the first support mechanism and the second support mechanism; a lifting mechanism arranged on the third support mechanism; and an adsorption platform driven by the lifting mechanism, which can perform adsorption operations on multiple fixed-length decorative films.

8. The decorative film sticking mechanism for BC battery cells according to claim 1, characterized in that: The transfer and attachment assembly includes a lateral movement mechanism, which is arranged above the film preparation platform; a longitudinal movement mechanism slidably arranged on the lateral movement mechanism; and a plurality of adsorption and heating mechanisms respectively arranged below the longitudinal movement mechanism. The plurality of adsorption and heating mechanisms can simultaneously perform adsorption operations on a plurality of fixed-length decorative films arranged on the film preparation platform and can respectively perform heating operations on the plurality of fixed-length decorative films.

9. The decorative film sticking mechanism for BC battery cells according to claim 8, characterized in that: The adsorption and heating mechanism is provided with a plurality of vacuum suction cups, and the vacuum suction cups are provided with a heating element, through which the back glue of the fixed-length decorative film is heated and softened to form adhesion; a flexible element is provided at the contact position between the vacuum suction cup and the BC battery sheet.

10. A series connection machine for BC cells, characterized in that: It comprises a battery cell welding ribbon conveying device, the battery cell welding ribbon conveying device comprises the decorative film sticking mechanism according to any one of claims 1 to 9, the decorative film sticking mechanism automatically sticks decorative film to the gaps between a plurality of BC battery cells arranged on the battery cell welding ribbon conveying device; It also includes a cell feeding device, a cell glue applying device, a cell conveying device, a cell handling device, a solder strip feeding device, a solder strip laying device and a UV curing device; Among them, the cell loading device performs loading operations on BC cell sheets; the cell gluing device performs gluing operations on the BC cell sheets conveyed by the cell loading device; the cell conveying device performs conveying operations on the BC cell sheets after gluing; the cell transporting device transports the glued BC cell sheets at the output end of the cell conveying device to the input end of the cell solder tape conveying device; the solder tape loading device places the solder tape roll to provide the solder tape required for battery string welding; the solder tape laying device lays the solder tape of a predetermined length on the glued BC cell sheets at the input end of the cell solder tape conveying device; the UV curing device is arranged above the cell solder tape conveying device, and the cell solder tape conveying device conveys the glued BC cell sheets laid with the solder tape to the bottom of the UV curing device for curing operations.

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