Stacking and conveying apparatus and method for stacking battery strings

Abstract

The application discloses a stacking conveying device and a battery string stacking method. The stacking conveying device comprises a welding strip cutting device, a guide device, a clamping device and a conveying device arranged in sequence. The welding strip cutting device is used for cutting the welding strip. The conveying device is used for carrying the stacked battery piece and the welding strip and conveying. The guide device is arranged between the welding strip cutting device and the clamping device, and comprises a guide main body and a moving mechanism for driving the guide main body to move. The clamping device is arranged at the end of the conveying device facing the guide device, and comprises a chuck holder and a plurality of welding strip clamps. The guide main body is used for carrying the rear part of the cut welding strip when the guide main body moves to the welding strip cutting device. In the process of pulling the welding strip to move, the guide main body moves synchronously with the welding strip. When the guide main body moves to the clamping device, the welding strip clamp receives the welding strip from the guide main body and clamps the welding strip. The welding strip can continue to move to the predetermined position of the conveying device. The technical scheme provided by the application can guarantee the accurate stacking of the welding strip and the battery piece.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic cell production, in particular to a stacking conveying device and a cell string stacking method. BACKGROUND

[0002] In the production process of a photovoltaic cell string assembly, a solder strip and a cell piece need to be stacked and welded to form a cell string.

[0003] Among them, the supply of solder strip is a very important link, and the accuracy of solder strip supply determines the quality of the assembly produced by the stringer. Inaccurate solder strip supply may cause the solder strip to deviate from the main grid line of the cell piece when the cell piece and the solder strip are stacked, resulting in white exposure and other problems.

[0004] In order to realize accurate supply of solder strip, a stacking conveying device is needed to enable the solder strip to be accurately stacked with the cell piece and improve the production quality of the cell string. SUMMARY

[0005] The purpose of the present application is to provide a stacking conveying device and a cell string stacking method to solve the problem of deviation of the solder strip from the main grid line of the cell piece when the solder strip and the cell piece are stacked, which affects the production quality of the cell string.

[0006] In order to achieve the above purpose, the present application provides a stacking conveying device, which comprises a solder strip cutting device, a guide device, a clamping device and a conveying device arranged in sequence; wherein,

[0007] The solder strip cutting device is arranged to cut the solder strip;

[0008] The conveying device is arranged to carry and convey the stacked cell piece and solder strip;

[0009] The guide device is arranged between the solder strip cutting device and the clamping device, and the guide device comprises a guide body for guiding the solder strip and a moving mechanism for driving the guide body to move between the solder strip cutting device and the clamping device;

[0010] The clamping device is arranged at the end of the conveying device facing the guide device, and the clamping device comprises a chuck holder and a plurality of side-by-side solder strip clamps arranged on the chuck holder, each solder strip clamp being used to clamp a solder strip;

[0011] The guiding body of the guiding device is used to carry the rear section of the cut solder strip when moving to the solder strip cutting device, and the guiding body moves synchronously with the solder strip during the process of pulling the front section of the solder strip to move to the conveying device. When the guiding body moves to the clamping device, the solder strip clamps of the clamping device receive the solder strip from the guiding body and clamp it. The solder strip clamps are arranged to enable the solder strip to continue to move to a predetermined position of the conveying device when clamping the solder strip.

[0012] Preferably, the guiding body is provided with guiding grooves for guiding the solder strip.

[0013] The guiding device further comprises a blocking mechanism arranged to block the guiding grooves to prevent the solder strip from leaving the guiding grooves and to open the placement passages of the guiding grooves to enable the solder strip to enter the guiding grooves.

[0014] Preferably, the blocking mechanism comprises a blocking body capable of moving back and forth along the arrangement direction of the guiding grooves relative to the guiding body, and the blocking body is provided with blocking portions corresponding to the guiding grooves.

[0015] When the blocking body moves to a first position relative to the guiding body, each blocking portion opens the placement passage of the corresponding guiding groove, and when the blocking body moves to a second position relative to the guiding body, each blocking portion blocks the corresponding guiding groove.

[0016] Preferably, the guiding device further comprises a mounting frame, a support frame capable of moving up and down relative to the mounting frame, and a lifting mechanism for driving the support frame to lift, and the guiding body and the blocking body are mounted on the support frame and lift with the support frame.

[0017] The stacking and conveying equipment further comprises a stop block arranged close to the solder strip cutting device, the stop block is provided with an inclined guide surface, the blocking body is provided with a driving wheel, when the guiding body of the guiding device moves close to the solder strip cutting device, the blocking body lifts with the support frame, and the driving wheel moves upward along the guide surface to drive the blocking body to move to the first position.

[0018] The guiding device further comprises a spring capable of pushing the blocking body to the second position when the driving wheel is out of the limitation of the guide surface.

[0019] Preferably, each solder strip clamp comprises two clamping portions that are cross-hinged together at a middle position, and the upper ends of the two clamping portions are used to clamp the solder strip.

[0020] The clamping device further comprises a driving mechanism for driving the lower ends of the two clamping portions of each solder strip clamp to open and close the upper ends of the two clamping portions.

[0021] Preferably, the driving mechanism comprises a roller frame, rotatable rollers arranged on the roller frame corresponding to each solder strip clamp, and a lifting mechanism for lifting the roller frame, each roller is arranged between the lower ends of the two clamping portions of the corresponding solder strip clamp and can move up and down with the roller frame;

[0022] The rollers move upward to drive the upper ends of the solder strip clamps to open;

[0023] The driving mechanism further comprises a reset spring, when the rollers move downward, the reset spring drives the upper ends of the solder strip clamps to close.

[0024] Preferably, the chuck frame is provided with a limiting component, which is arranged to be rotatable between a limiting position and a non-limiting position; when the limiting component is in the limiting position, the limiting component can keep the roller frame at a preset height position, at which the rollers keep the upper ends of the solder strip clamps in an open state; when the limiting component is in the non-limiting position, the roller frame drives the rollers to drop below the preset height position, and the reset spring drives the upper ends of the solder strip clamps to close to clamp the solder strip;

[0025] The limiting component and the chuck frame are provided with a retaining spring for keeping the limiting component in the limiting position; the guide device is provided with a top block, when the guide body of the guide device moves to the clamping device, the top block moves the limiting component to the non-limiting position.

[0026] Preferably, the conveying device further comprises a base, a fixed platform, a stepping platform, and a platform moving mechanism for driving the stepping platform to move, wherein:

[0027] The fixed platform is fixedly connected to the base, the stepping platform is slidably connected to the base, and the platform moving mechanism can drive the stepping platform to stepwise move towards or away from the fixed platform in the conveying direction of the conveying belt;

[0028] The conveying belt is arranged on the fixed platform and the stepping platform, when the stepping platform moves away from the fixed platform, the conveying belt is turned over from bottom to top at the end of the stepping platform away from the fixed platform, so that the upper surface of the conveying belt stepwise extends away from the fixed platform along with the stepping platform;

[0029] The chuck frame of the clamping device is arranged to move synchronously with the stepping platform.

[0030] Preferably, the stacking conveying device further comprises a welding strip traction device, the welding strip traction device comprising a traction chuck for clamping a welding strip and a traction driving mechanism for driving the traction chuck to move;

[0031] The traction chuck clamps the front section of the welding strip to be cut from the welding strip cutting device, and after the clamped welding strip is cut, the traction chuck drives the clamped welding strip to move to the conveying device under the driving of the traction driving mechanism, and the welding strip is laid on the feeding station of the conveying device; wherein the guide body carries the rear section of the cut welding strip and moves synchronously with the traction chuck, and when the guide body moves to the clamping device, the welding strip clamps of the clamping device receive the welding strip from the guide body and clamp it, and the traction chuck continues to move the welding strip to the preset position of the conveying device for release;

[0032] Preferably, the welding strip traction device is provided with one or at least two welding strip traction devices, and the at least two welding strip traction devices alternately pull the welding strip.

[0033] According to another aspect of the present application, a battery string stacking method is also provided, the battery string stacking method comprising:

[0034] The guide body of the guide device is controlled to move to the welding strip cutting device, and after the traction chuck of the welding strip traction device clamps the front section of the welding strip to be cut, the welding strip cutting device is controlled to cut the welding strip, and the rear section of the cut welding strip is supported by the guide body;

[0035] The traction chuck and the guide body are controlled to move synchronously towards the clamping device, and in the moving process, the guide body guides the supported welding strip;

[0036] When the guide body moves to the clamping device, the guide body is controlled to stop moving, and the traction chuck continues to clamp the welding strip to move forward, and in the process that the traction chuck reaches the clamping device and continues to move forward, the plurality of welding strip clamps arranged side by side on the clamping device receive the welding strip from the guide body respectively;

[0037] When the traction chuck moves the clamped welding strip to the preset position of the conveying device, the traction chuck is controlled to release the clamped welding strip.

[0038] The technical solution provided by the present application can guide the welding strip through the guide device 3 and the clamping device 4 in the process of moving the welding strip to the conveying device and laying the welding strip, which can ensure the stacking precision of the welding strip and the battery piece, thereby greatly improving the production quality of the battery string. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 Structure diagram of the stacking conveying device according to an embodiment of the present application;

[0040] Figure 2 Structure diagram of the stacking conveying device according to an embodiment of the present application; Figure 1 Structure diagram of the stacking conveying device according to an embodiment of the present application;

[0041] Figure 3 Structure diagram of the stacking conveying device according to an embodiment of the present application;

[0042] Figure 4 Structure diagram of the stacking conveying device according to an embodiment of the present application;

[0043] Figure 5 Structure diagram of the stacking conveying device according to an embodiment of the present application;

[0044] Figure 6 Structure diagram of the stacking conveying device according to an embodiment of the present application;

[0045] Figure 7 Structure diagram of the stacking conveying device according to an embodiment of the present application;

[0046] Figure 8 Structure diagram of the stacking conveying device according to an embodiment of the present application.

[0047] Explanation of reference numerals

[0048] 1 - conveying device; 11 - conveying belt; 12 - base; 13 - stepping platform; 131 - mounting bracket; 14 - fixed platform; 15 - conveying belt driving mechanism; 151 - driving roller; 152 - first guide roller; 153 - second guide roller; 154 - tensioning roller; 2 - solder strip cutting device; 3 - guide device; 31 - guide body; 311 - guide groove; 312 - elongated groove; 313 - limiting groove; 32 - blocking body; 321 - mounting protrusion; 322 - blocking rod; 33 - support frame; 34 - mounting frame; 35 - lifting cylinder; 36 - driving wheel; 37 - angle adjusting plate; 371 - mounting hole; 38 - rotating shaft; 39 - blocking block; 391 - guiding surface; 4 - clamping device; 41 - collet holder; 411 - solder strip groove; 42 - solder strip clamp; 43 - roller; 44 - roller holder; 45 - return spring; 46 - lifting cylinder; 47 - limiting component; 471 - support table; 48 - retaining spring. DETAILED DESCRIPTION

[0049] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations can be implemented in any

[0050] Moreover, described features, structures, or characteristics can be combined in any suitable manner in one or more implementations. In the following description, numerous specific details are provided, such as examples of materials, processes, etc., to provide a thorough understanding of implementations of the disclosure. However, implementations of the disclosure can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, processes, materials, or operations are not shown or described in detail in

[0051] For ease of description, spatially relative terms, such as "upper", "lower", "left", "right", and the like, can be used herein for describing an element's relationship to another element(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein is inverted or rotated by 90 degrees, an element described as being "below" or "beneath" another element would then be oriented "above" or "over" the other element. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated by 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly.

[0052] The present disclosure provides a stacking conveying device, such as Figure 1 and Figure 2 The stacking conveying device comprises, in sequence, a solder strip cutting device 2, a guiding device 3, a clamping device 4, and a conveying device 1; wherein,

[0053] The solder strip cutting device 2 is arranged to cut a solder strip;

[0054] The conveying device 1 is arranged to carry and convey the stacked battery piece and solder strip;

[0055] The guiding device 3 is arranged between the solder strip cutting device 2 and the clamping device 4, and comprises a guiding body 31 for guiding the solder strip and a moving mechanism for driving the guiding body 31 to move between the solder strip cutting device 2 and the clamping device 4;

[0056] The clamping device 4 is arranged at the end of the conveying device 1 facing the guiding device 3, and the clamping device 4 comprises a clamping head frame and a plurality of parallel welding strip clamps arranged on the clamping head frame, each of which is used for clamping a welding strip;

[0057] The guiding body 31 of the guiding device 3 is used for carrying the rear segment of the cut welding strip when the guiding body 31 moves to the welding strip cutting device 2, and the guiding body 31 moves synchronously with the welding strip during the process of pulling the front segment of the welding strip to the conveying device 1, and the welding strip clamps 42 of the clamping device 4 receive the welding strip from the guiding body 31 and clamp the welding strip when the guiding body 31 moves to the clamping device 4, and the welding strip clamps 42 are arranged to allow the welding strip to continue to move to the predetermined position of the conveying device 1 when clamping the welding strip.

[0058] The stacking and conveying device provided by the present application is used for providing and laying welding strips, so that the welding strips are stacked with battery pieces on the conveying device 1 to form a battery string. During the process of pulling the welding strip to the conveying device 1, the welding strip is guided by the guiding device 3 and the clamping device 4, which can ensure the stacking accuracy of the welding strip and the battery piece, thereby greatly improving the production quality of the battery string.

[0059] The stacking and conveying device provided by the present application will be described in detail below according to the specific embodiments.

[0060] In one specific embodiment of the present application, the structure of the guiding device 3 is as shown in Figures 3-5 The guiding device 3 comprises a support frame 33, and a guiding body 31 is installed on the support frame 33. The guiding body 31 is provided with guiding grooves 311 for guiding the welding strip.

[0061] The guiding device 3 further comprises a blocking mechanism, which is arranged to block the guiding grooves 311 to prevent the welding strip from leaving the guiding grooves 311 and to open a placing passage of the guiding grooves 311 to allow the welding strip to enter the guiding grooves 311.

[0062] Specifically, as shown in Figure 4 and Figure 5 The blocking mechanism comprises a blocking body 32 which can move back and forth along the arrangement direction of the guiding grooves 311 relative to the guiding body 31, and the blocking body 32 is provided with a blocking part corresponding to each guiding groove 311.

[0063] When the blocking body 32 moves to the first position relative to the guide body 31, each blocking part opens the placement passage of the corresponding guide groove 311; when the blocking body 32 moves to the second position relative to the guide body 31, each blocking part blocks the corresponding guide groove 311.

[0064] Further, as shown in the figure, the blocking body 32 is provided with a mounting protrusion 321 corresponding to each guide groove 311, and the blocking part is a blocking rod 322 mounted on the mounting protrusion 321 and extending along the width direction of the guide groove 311. Figure 5

[0065] Preferably, the guide body 31 is provided with a limiting groove 313 corresponding to each mounting protrusion 321, and the side surfaces of the opposite sides of the limiting groove 313 limit the back-and-forth movement of the mounting protrusion 321.

[0066] During the movement of the blocking body 32 along the first direction to the first position, when the mounting protrusion 321 moves to the side surface of one side of the limiting groove 313, the side surface limits the mounting protrusion 321, and at this time the blocking body 32 reaches the first position; during the movement of the blocking body 32 along the second direction from the first position to the second position, when the mounting protrusion 321 moves to the side surface of the other side of the limiting groove 313, the other side limits the mounting protrusion 321, and at this time the blocking body 32 reaches the second position.

[0067] In order to facilitate the driving of the movement of the blocking body 32, the blocking body 32 is provided with a driving wheel 36, and the driving wheel 36 is arranged to roll along a guide surface 391, so that the guide surface 391 can guide the movement of the driving wheel 36 to drive the blocking body 32 to move towards the first position. Wherein, the guide surface 391 can be arranged on a structure capable of contacting the driving wheel 36. Specifically, the guide body 31 can drive the driving wheel 36 to move along the guide surface 391, or the guide surface 391 can be moved to drive the driving wheel 36 to move relative to the guide surface 391. During the relative movement of the driving wheel 36 and the guide surface 391, the guide surface 391 guides the driving wheel 36 to drive the blocking body 32 to move towards the first position, so that the blocking part opens the placement passage of each guide groove 311, and the welding strip can enter the guide groove.

[0068] In the embodiment, the guide surface 391 is arranged on a stop block 39 arranged near the welding strip cutting device 2 or on the welding strip cutting device 2, and the blocking body 32 is driven to move between the first position and the second position by lifting the driving wheel 36.

[0069] ​Specifically, the guiding device 3 further comprises a mounting frame 34 and a lifting mechanism configured to drive the support frame 33 to lift relative to the mounting frame 34, and the guiding body 31 and the blocking body 32 lift along with the support frame 33;

[0070] The guiding device 3 further comprises a mounting frame 34, a support frame 33 capable of moving up and down relative to the mounting frame 34, and a lifting mechanism configured to drive the support frame 33 to lift, which is preferably a lifting cylinder 35, and the guiding body 31 and the blocking body 32 are installed on the support frame 33 and lift along with the support frame 33;

[0071] The blocking block 39 is arranged near the solder strip cutting device 2, and the blocking block 39 is provided with an inclined guide surface 391 inclined from the lower to the upper along the direction in which the blocking body 32 moves towards the first position. When the guiding body 31 of the guiding device 3 moves to the position near the solder strip cutting device 2, the blocking body 32 lifts along with the support frame 33, and the driving wheel 36 moves upwards along the guide surface 391 to drive the blocking body 32 to move to the first position, at which the blocking portions on the blocking body 32 open the placing passages of the guiding grooves 311, so that when the solder strip is cut, the front part of the solder strip is pulled by the solder strip pulling device, and the rear part of the solder strip can enter the guiding grooves 311.

[0072] The guiding device 3 further comprises a spring capable of pushing the blocking body 32 to the second position when the driving wheel 36 is out of the limitation of the guide surface 391.

[0073] Specifically, after the solder strip enters the guiding groove 311, the lifting cylinder 35 can be configured to drive the support frame 33 to continue lifting, so that the driving wheel 36 moves upwards beyond the guide surface 391 in a manner that the driving wheel 36 is out of the limitation of the guide surface 391, so that the blocking body 32 moves to the second position under the action of the spring. Alternatively, the lifting cylinder 35 drives the support frame 33 to move downwards, and during the process in which the blocking body 32 moves downwards along with the support frame 33, the driving wheel 36 is out of the limitation of the guide surface 391, and the blocking body 32 moves to the second position under the action of the spring, thereby achieving the blocking of the guiding groove 311.

[0074] Those skilled in the art can understand that the blocking mechanism is not limited to the structure described above in the embodiment, and any blocking mechanism capable of blocking the guiding groove and opening the guiding groove can be used. For example, a blocking mechanism can be arranged corresponding to each guiding groove, and the blocking mechanism is provided with a blocking portion capable of rotating, which can rotate to the first position to open the guiding groove, and can rotate to the second position to block the guiding groove.

[0075] In addition, in the embodiment, the guide body 31 is arranged to be able to adjust the angle and position on the support frame 33.

[0076] Specifically, as shown in Figure 5 the guide device 3 further comprises an angle adjustment plate 37 mounted on the support frame 33, and the guide body 31 is mounted on the angle adjustment plate 37;

[0077] wherein a pivot 38 is arranged between the angle adjustment plate 37 and the support frame 33, and a mounting hole 371 with a mounting allowance is arranged on one of the angle adjustment plate 37 and the support frame 33, and after adjusting the angle position of the angle adjustment plate 37 around the pivot 38, the angle adjustment plate 37 is fastened on the support frame 33 by a fastener passing through the mounting hole 371; wherein the pivot 38 can be a bolt (or other columnar member) connected to the angle adjustment plate 37 and the support frame 33, when adjusting the angle, the bolt is loosened, and the angle adjustment plate 37 is rotated to the appropriate angle position, and then the bolt and the fastener passing through the mounting hole 371 are fastened.

[0078] One of the guide body 31 and the angle adjustment plate 37 is provided with an elongated hole 312, and the guide body 31 can be adjusted in position along the elongated hole 312 and fixed on the angle adjustment plate 37 by a fastener passing through the elongated hole 312.

[0079] Specifically, when adjusting the angle and position of the guide body 31, first adjust the angle position of the angle adjustment plate 37 so that the guide groove 311 of the guide body 31 on the angle adjustment plate 37 is parallel to the solder strip to be guided; then loosen the fastener passing through the elongated hole 312 between the guide body 31 and the angle adjustment plate 37, so that the guide body 31 moves along the elongated hole 312 relative to the angle adjustment plate 37, and when each guide groove 311 is adjusted to correspond to the solder strip to be guided, the fastener passing through the elongated hole 312 is fastened to fix the guide body 31 on the angle adjustment plate 37.

[0080] In the embodiment, the specific structure of the clamping device 4 is as shown in Figure 6 and Figure 7 the clamping device 4 comprises a chuck holder 41 and a plurality of side-by-side solder strip clamps 42 arranged on the chuck holder 41, each solder strip clamp 42 comprises two clamping portions that are cross-hinged at the middle position, and the upper ends of the two clamping portions are used to clamp the solder strip;

[0081] wherein the clamping device 4 further comprises a driving mechanism for driving the lower ends of the two clamping portions of each solder strip clamp 42 to open and close the upper ends of the two clamping portions.

[0082] The clamping device provided by the present application can receive the solder strip when the upper end of the clamping part of each solder strip clamp 42 is in an open state driven by the driving mechanism, and the driving mechanism can drive the upper end of the clamping part of the solder strip clamp 42 to close to clamp the solder strip when the solder strip falls into each solder strip clamp 42, thereby guiding the movement of the solder strip. When the solder strip clamp 42 clamps the solder strip, the solder strip can be pulled in the solder strip clamp 42, so that the solder strip moves along the solder strip clamp 42 to the accurate position.

[0083] In a preferred embodiment, as shown in the drawings, the driving mechanism comprises a roller frame 44, rotatable rollers 43 corresponding to each solder strip clamp 42 arranged on the roller frame 44, and a lifting mechanism for driving the roller frame 44 to lift, each roller 43 is arranged between the lower ends of the two clamping parts of the corresponding solder strip clamp 42 and can move up and down with the roller frame 44; Figure 6

[0084] When the roller 43 moves upward, the upper end of the solder strip clamp 42 is driven to open;

[0085] The driving mechanism further comprises a reset spring 45, when the roller 43 moves downward, the upper end of the solder strip clamp 42 is driven to close by the elastic force of the reset spring 45.

[0086] Among them, the roller frame 44 and the chuck frame 41 are provided with sliding rails arranged up and down, and the roller frame 44 lifts along the sliding rails.

[0087] Among them, the lifting mechanism is preferably a lifting cylinder 46 installed on the chuck frame 41, the roller frame 44 is connected to the driving end of the lifting cylinder 46, and the lifting cylinder 46 drives the roller frame 44 to lift by the extension and contraction of the driving end. It can be understood that the lifting mechanism can also be of other structural forms, such as a lead screw mechanism.

[0088] In the present embodiment, the chuck frame 41 is provided with a limiting part 47, which is arranged to be movable to a limiting position and a non-limiting position;

[0089] When the limiting part 47 moves to the limiting position, the roller frame 44 will be supported on the limiting part 47 during the upward and downward movement, and the roller frame 44 will be kept at a preset height position, at which the upper end of the solder strip clamp 42 is kept in an open state by the roller 43, and at this time the reset spring 45 outside the lower end of the two clamping parts of the solder strip clamp 42 is in a squeezed state;

[0090] ​When the limiting component 47 moves to the non-limiting position, the roller frame 44 drives the roller 43 to descend below the preset height position, and the upper end of the solder strip clamp 42 is closed to clamp the solder strip under the elastic driving of the reset spring 45.

[0091] The limiting component 47 is arranged on the opposite ends of the clamp head frame 41, and the support table 471 supporting the roller frame 44 is arranged on the limiting component 47. The symmetrical support of the roller frame 44 on the two ends can ensure the force balance of the roller frame 44.

[0092] In the embodiment, the limiting component 47 is arranged to rotate relative to the clamp head frame 41 between the limiting position and the non-limiting position, and the retaining spring 48 is arranged between the limiting component 47 and the clamp head frame 41 to keep the limiting component 47 in the limiting position. Figure 5 As shown in FIG. 4, the retaining spring 48 is a tension spring connected between the rod-shaped member and the limiting component 47. In the normal state, the limiting component 47 is kept in the limiting position under the action of the retaining spring 48.

[0093] In the specific application, when the lifting cylinder 46 pushes the roller frame 44 to move upward, the limiting component 47 can be first pushed to rotate to the non-limiting position. Specifically, the limiting component 47 can be pushed to rotate to the non-limiting position by external force, or the limiting component 47 can be moved to the non-limiting position by the slope at the lower end of the support table 471 of the limiting component 47 when the roller frame 44 moves upward. After the roller frame 44 rises above the support table 471, the limiting component 47 returns to the limiting position under the action of the retaining spring 48, and then the roller frame 44 moves downward from the upper end to be supported on the support table 471, keeping the roller frame 44 in the preset height position. At this time, each roller 43 on the roller frame 44 can keep the upper end of the solder strip clamp 42 in the open state, and can receive the moving solder strip from the guide body 31.

[0094] The guide device 3 can be provided with a top block, and the top block can move the limiting component 47 to the non-limiting position when the guide body 31 of the guide device 3 moves to the clamping device 4. At this time, the roller frame 44 descends below the preset height position without the support of the limiting component 47, and the upper end of the solder strip clamp 42 is closed to clamp the received solder strip under the action of the reset spring 45. Of course, the limiting component 47 can also be driven to move to the non-limiting position by other ways.

[0095] In the embodiment, the chuck frame 41 is provided with a solder strip slot 411 corresponding to each solder strip clamp 42, and the solder strip can sequentially pass through the corresponding solder strip slot 411 and solder strip clamp 42 in the length direction. The solder strip slot 411 is preferably V-shaped, so that the solder strip can easily enter the solder strip slot 411. The solder strip first enters the solder strip slot 411, and then continues to move into the corresponding solder strip clamp 42 under the limiting action of the solder strip slot 411.

[0096] In addition, in the embodiment, as shown in Figure 1 and Figure 2 The solder strip drawing device 5 includes a drawing chuck for clamping the solder strip and a drawing driving mechanism for driving the drawing chuck to move.

[0097] The drawing chuck clamps the front part of the solder strip to be cut from the solder strip cutting device 2. After the clamped solder strip is cut, the drawing chuck drives the clamped solder strip to move to the conveying device 1 under the driving of the drawing driving mechanism, and lays the solder strip on the feeding station of the conveying device. The guiding body 31 carries the rear part of the cut solder strip and moves synchronously with the drawing chuck. When the guiding body 31 moves to the clamping device 4, the solder strip clamp 42 of the clamping device 4 receives the solder strip from the guiding body 31 and clamps it. The drawing chuck continues to move to the preset position of the conveying device 1 and releases the solder strip.

[0098] The solder strip drawing device 5 can be provided with one or at least two, preferably at least two solder strip drawing devices 5, which alternately draw the solder strip to improve the efficiency of providing the solder strip.

[0099] In the embodiment, the conveying device 1 includes a conveying belt 11 and a conveying belt driving mechanism 15 for driving the conveying belt 11 to run. The first end of the conveying belt 11 (one end with the clamping device 4) is arranged to be able to stepwise extend away from the second end and stepwise return towards the second end. The conveying belt 11 is arranged to turn upward by a predetermined length at the first end every time it steps away from the second end by a predetermined length, so that the upper surface of the predetermined length of the conveying belt forms an idle feeding station.

[0100] The conveying belt of the conveying device 1 extends once per step in the direction of the first end, and forms a vacant feeding station on the part of the conveying belt that extends per step, and the battery piece and the solder strip are stacked on the feeding station. In this way, the conveying belt does not need to step to the welding station once per feeding during the feeding of the battery piece and the solder strip, and the predetermined number of battery piece stacking assemblies are fed to the welding station for welding together after being fed, so as to ensure the consistency of the heating of the battery pieces, and facilitate the improvement of the welding quality.

[0101] Specifically, the specific structure of the conveying device 1 is as shown in Figure 8 The conveying device 1 further comprises a base 12, a fixed platform 14, a stepping platform 13, and a platform moving mechanism for driving the stepping platform 13 to move.

[0102] The fixed platform 14 is fixedly connected to the base 12, and the stepping platform 13 is slidably connected to the base 12. The platform moving mechanism can drive the stepping platform 13 to step in the direction of the conveying belt towards or away from the fixed platform 14.

[0103] The conveying belt 11 is arranged on the fixed platform 14 and the stepping platform 13. When the stepping platform 13 moves away from the fixed platform 14, the conveying belt 11 is flipped from bottom to top at the end of the stepping platform 13 away from the fixed platform 14, so that the upper surface of the conveying belt 11 extends with the stepping platform 13 in the direction away from the fixed platform 14.

[0104] The chuck holder 41 of the clamping device 4 is arranged to move synchronously with the stepping platform 13. Specifically, the chuck holder 41 of the clamping device 4 can be installed on the stepping platform 13, or a driving mechanism for driving the chuck holder 41 to move can be separately arranged to make the chuck holder 41 move synchronously with the stepping platform 13.

[0105] In this embodiment, the conveying belt driving mechanism 15 for driving the conveying belt 11 to run comprises a driving roller 151, a first guide roller 152, a second guide roller 153, and a tensioning roller 154.

[0106] The driving roller 151 is arranged at the end of the fixed platform 14 away from the stepping platform 13 and is driven to rotate by a driving motor. The first guide roller 152 is arranged at the end of the stepping platform 13 away from the fixed platform 14. The first guide roller 152 and the second guide roller 153 are installed on the stepping platform 13. The tensioning roller 154 is arranged below the first guide roller 152 and the second guide roller 153 and is arranged to be movable back and forth along the conveying direction of the conveying belt 11 to adjust and tension the conveying belt 11. The conveying belt 11 is wound around the driving roller 151, the first guide roller 152, the second guide roller 153, and the tensioning roller 154 in sequence. The second guide roller 153 is arranged on the conveying surface of the conveying belt 11.

[0107] When the stepping platform 13 moves away from the fixed platform 14, the first guide roller 152 and the second guide roller 153 move with the stepping platform 13 and guide the conveying belt 11 to extend upwardly from below. The platform moving mechanism that drives the stepping platform 13 to move can be, for example, a screw mechanism or a pneumatic cylinder.

[0108] When the platform moving mechanism drives the stepping platform 13 to move away from the fixed platform 14, the stepping platform 13 moves synchronously with the first guide roller 152 and the second guide roller 153 installed thereon, and the conveying belt 11 is flipped upwardly from below along the first guide roller 152 and the second guide roller 153 as the part of the conveying belt 11 that steps on the stepping platform 13.

[0109] Those skilled in the art can understand that, in addition to the above-mentioned embodiment in which the stepping platform is arranged to make the conveying belt step and extend to form the feeding station, the conveying device can also be arranged to move as a whole while the conveying belt moves toward the second end, thereby forming the idle feeding station at the first end of the conveying belt.

[0110] According to another aspect of the present application, a battery string stacking method is also provided, which comprises:

[0111] The guide body 31 of the guide device 3 is controlled to move to the welding strip cutting device 2. After the leading part of the welding strip to be cut is clamped by the clamping head of the welding strip pulling device 5, the welding strip cutting device 2 is controlled to cut the welding strip, and the trailing part of the cut welding strip is supported by the guide body 31.

[0112] The clamping head and the guide body 31 are controlled to move synchronously toward the clamping device 4. During the movement, the guide body 31 guides the supported welding strip.

[0113] When the guide body 31 moves to the clamping device 4, the guide body 31 is controlled to stop moving, and the traction chuck continues to move the clamped solder strip forward. In the process that the traction chuck reaches the clamping device 4 and continues to move forward, the multiple solder strip clamps 42 on the clamping device 4 receive the solder strip from the guide body 31 respectively.

[0114] When the traction chuck moves the clamped solder strip to the preset position of the conveying device 1, the traction chuck is controlled to release the clamped solder strip.

[0115] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited thereto. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present application will not further describe various possible combination manners. However, these simple modifications and combinations should also be regarded as the disclosed content of the present application and belong to the protection scope of the present application.

Claims

1. A stacker conveyor apparatus, characterized by, The stacking conveying device comprises a welding strip cutting device, a guiding device, a clamping device and a conveying device arranged in sequence, wherein The welding strip cutting device is arranged to cut welding strips; The conveying device is arranged to carry and convey the stacked battery pieces and welding strips; The guiding device is arranged between the welding strip cutting device and the clamping device, and comprises a guiding body for guiding the welding strips and a moving mechanism for driving the guiding body to move between the welding strip cutting device and the clamping device, the guiding body is provided with guiding grooves for guiding the welding strips, and the guiding device further comprises a blocking mechanism arranged to block the guiding grooves to prevent the welding strips from leaving the guiding grooves and to open a placing passage of the guiding grooves to enable the welding strips to enter the guiding grooves; The clamping device is arranged at an end of the conveying device facing the guiding device, and comprises a clamp holder and a plurality of side-by-side welding strip clamps arranged on the clamp holder, each of the welding strip clamps is used to clamp a welding strip, each of the welding strip clamps comprises two clamping parts cross-connected at a middle position, the upper ends of the two clamping parts are used to clamp the welding strips, and the clamping device further comprises a driving mechanism for driving the lower ends of the two clamping parts of each of the welding strip clamps to open and close the upper ends of the two clamping parts; The guiding body of the guiding device is used to carry the rear segment of the cut welding strips when moving to the welding strip cutting device, the guiding body moves synchronously with the welding strips during the process of pulling the front segment of the welding strips to move to the conveying device, the welding strip clamps of the clamping device receive the welding strips from the guiding body and clamp them when the guiding body moves to the clamping device, and the welding strip clamps are arranged to enable the welding strips to continue to move to a predetermined position of the conveying device when clamping the welding strips.

2. The stacked conveyor of claim 1, wherein, The blocking mechanism comprises a blocking body capable of moving back and forth along the arrangement direction of the guiding grooves relative to the guiding body, and the blocking body is provided with blocking parts corresponding to the guiding grooves; When the blocking body moves to a first position relative to the guiding body, each of the blocking parts opens the placing passage of the corresponding guiding groove, and when the blocking body moves to a second position relative to the guiding body, each of the blocking parts blocks the corresponding guiding groove.

3. The stacked conveyor of claim 2, wherein, The guiding device further comprises a mounting rack, a support rack capable of moving up and down relative to the mounting rack, and a lifting mechanism for driving the support rack to lift, and the guiding body and the blocking body are mounted on the support rack and lift with the support rack; The stacking conveying device further comprises a stop block arranged close to the welding strip cutting device, the stop block is provided with an inclined guide surface, the blocking body is provided with a driving wheel, and when the guiding body of the guiding device moves close to the welding strip cutting device, the blocking body lifts with the support rack, the driving wheel moves upward along the guide surface to drive the blocking body to move to the first position. The guide device further comprises a spring capable of pushing the blocking body to the second position when the driving wheel is disengaged from the guide surface.

4. The stacked conveyor of claim 1, wherein, The driving mechanism comprises a roller frame, rotatable rollers arranged on the roller frame corresponding to each of the solder strip clamps, and a lifting mechanism for driving the roller frame to lift; each of the rollers is arranged at a position between the lower ends of the two clamping parts of the corresponding solder strip clamp and is capable of moving up and down with the roller frame; The rollers are driven to move upward to open the upper ends of the solder strip clamps; The driving mechanism further comprises a return spring, and the upper ends of the solder strip clamps are driven to close by the elastic force of the return spring when the rollers move downward.

5. The stacked conveyor of claim 4, wherein, The clamp holder frame is provided with a limiting part capable of rotating between a limiting position and a non-limiting position; when the limiting part is in the limiting position, the limiting part can keep the roller frame at a preset height position, at which the rollers keep the upper ends of the solder strip clamps in an open state; when the limiting part is in the non-limiting position, the roller frame drives the rollers to descend below the preset height position, and the return spring drives the upper ends of the solder strip clamps to close to clamp the solder strip; The limiting part and the clamp holder frame are provided with a retaining spring for keeping the limiting part in the limiting position; the guide device is provided with a top block, and the top block moves the limiting part to the non-limiting position when the guide body of the guide device moves to the clamping device.

6. The stacking conveyor apparatus according to any one of claims 1 to 5, characterized in that, The conveying device further comprises a base, a fixed platform, a stepping platform, and a platform moving mechanism for driving the stepping platform to move; wherein: The fixed platform is fixedly connected to the base, and the stepping platform is slidably connected to the base; the platform moving mechanism can drive the stepping platform to stepwise move towards or away from the fixed platform in the conveying direction of the conveying belt; The conveying belt is arranged on the fixed platform and the stepping platform; when the stepping platform moves away from the fixed platform, the end of the conveying belt away from the fixed platform is turned from bottom to top, so that the upper surface of the conveying belt stepwise extends away from the fixed platform along with the stepping platform; The clamp holder frame of the clamping device is arranged to move synchronously with the stepping platform.

7. The stacking conveyor apparatus according to any one of claims 1 to 5, characterized in that, The stacking conveying equipment further comprises a solder strip pulling device, which comprises a pulling clamp for clamping a solder strip and a pulling driving mechanism for driving the pulling clamp to move. The traction chuck clamps the front section of the solder strip to be cut from the solder strip cutting device, after the clamped solder strip is cut, the traction chuck drives the clamped solder strip to move to the conveying device under the driving of the traction driving mechanism, and the solder strip is laid on the feeding station of the conveying device; wherein the guide body carries the rear section of the cut solder strip and moves synchronously with the traction chuck, when the guide body moves to the clamping device, the solder strip clamps of the clamping device receive the solder strip from the guide body and clamp, the traction chuck continues to move the solder strip to the preset position of the conveying device and releases the solder strip. The solder strip traction device is provided with one or at least two solder strip traction devices, and the at least two solder strip traction devices alternately pull the solder strip.

8. A method of stacking battery strings, characterized by, The battery string stacking method using the stacking conveying device according to any one of claims 1-7 comprises: controlling the guide body of the guide device to move to the solder strip cutting device, after the traction chuck of the solder strip traction device clamps the front section of the solder strip to be cut, controlling the solder strip cutting device to cut the solder strip, and the guide body supports the rear section of the cut solder strip; controlling the traction chuck and the guide body to move synchronously towards the clamping device, during the movement, the guide body guides the supported solder strip; when the guide body moves to the clamping device, controlling the guide body to stop moving, the traction chuck continues to clamp the solder strip and moves forward, during the movement of the traction chuck to the clamping device and continues to move forward, the multiple solder strip clamps on the clamping device receive the solder strip from the guide body respectively; when the traction chuck moves the clamped solder strip to the preset position of the conveying device, controlling the traction chuck to release the clamped solder strip.

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