Battery piece conveying device and battery piece stringing equipment

Abstract

The utility model discloses a battery piece conveying device and battery piece bunching equipment, the battery piece conveying device comprises a rack, a transmission mechanism installed on the rack, at least two conveying narrow belts and an adsorption mechanism, the conveying narrow belts are arranged on the transmission mechanism side by side at intervals, and the transmission mechanism is used for driving the conveying narrow belts to conduct synchronous conveying; the conveying narrow belts are used for jointly supporting and conveying battery pieces, a plurality of rows of glue points are arranged on the lower surfaces of the battery pieces, each conveying narrow belt is supported in the area between every two adjacent rows of glue points on the battery pieces, the adsorption mechanism is arranged below the conveying faces of all the conveying narrow belts, and adsorption holes are formed in the conveying faces of the conveying narrow belts. The adsorption mechanism adsorbs the battery pieces located on the conveying narrow band through the adsorption holes so that the battery pieces can stably move along with the conveying narrow band. According to the battery piece conveying device, stable conveying of the battery pieces is achieved, meanwhile, glue points on the lower surfaces of the battery pieces can be prevented from polluting the conveying narrow belt, and the glue points are prevented from being damaged by the conveying narrow belt.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of photovoltaic cell string production equipment, and more specifically, to a cell conveying device and a cell stringing device. Background Art

[0002] At present, one of the stringing process routes of busbarless solar cells is to first apply glue or print glue on the surface of busbarless solar cells through a glue application mechanism to form photovoltaic solar cells with several rows of glue points, and each row of glue points is used to bond a corresponding solder strip. The glued solar cells are then transported to the solar cell picking mechanism through a solar cell conveying device, so that the solar cell picking mechanism can pick up the glued solar cells, and cooperate with the solder strip picking mechanism to place the solar cells and solder strips on the stringing conveyor line according to the stringing rules of the solar cell string. The stringing conveyor line transports the stacked solar cells and solder strips to the curing mechanism to solidify the glue points on the solar cells and bond the solder strips to the solar cells to form a solar cell string.

[0003] At present, the battery cell conveying device used to convey the battery cells after glue application is usually a belt conveyor, and the belt is an integral wide belt. When glue dots are applied to the lower surface of the battery cell, after the battery cell is placed on the belt, the glue dots have not yet solidified and are still sticky. The glue dots will contaminate the belt, and the belt will also damage the glue dots, which is not conducive to subsequent stringing operations. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application embodiment proposes a battery cell conveying device and a battery cell stringing device, which not only prevents the glue spots on the lower surface of the battery cell from contaminating the conveyor belt when conveying the battery cell after glue application, but also prevents the conveyor belt from damaging the glue spots on the lower surface of the battery cell, thereby ensuring the quality of the subsequent battery stringing.

[0005] According to a first aspect of an embodiment of the present application, a battery cell conveying device is provided, comprising:

[0006] frame;

[0007] A transmission mechanism is mounted on the frame;

[0008] At least two conveyor belts, all of which are arranged side by side and spaced apart on a transmission mechanism, the transmission mechanism is used to drive the conveyor belts to transmit synchronously, and the conveyor belts are used to jointly support and convey the battery cell, and a plurality of glue discharge points are arranged on the lower surface of the battery cell, and each conveyor belt is supported on the area between two adjacent rows of glue points on the battery cell;

[0009] The adsorption mechanism is arranged below the conveying surface of all the conveying narrow belts. The conveying surface of the conveying narrow belts is provided with adsorption holes. The adsorption mechanism adsorbs the battery cells on the conveying narrow belts through the adsorption holes so that the battery cells can stably follow the movement of the conveying narrow belts.

[0010] According to the battery cell conveying device provided in the embodiment of the present application, at least two conveying narrow belts are arranged side by side and at intervals on the transmission mechanism, all the conveying narrow belts jointly support and convey the battery cells, and each conveying narrow belt is supported on the area between two adjacent rows of glue points on the battery cell, so as to avoid interference between the conveying narrow belt and the glue points on the lower surface of the battery cell; at the same time, through the adsorption mechanism arranged under all the conveying narrow belts, the adsorption of the battery cell by the conveying narrow belt is realized, so as to ensure the relative position between the conveying narrow belt and the battery cell, and avoid the battery cell from being misaligned during the conveying process. The overall structural design of the battery cell conveying device provided in the embodiment of the present application is ingenious, and while realizing stable conveying of the battery cell, it can avoid the glue points on the lower surface of the battery cell from contaminating the conveying narrow belt, and avoid the conveying narrow belt from damaging the glue points.

[0011] In some embodiments, a protruding support portion is provided on the conveying surface of each conveyor belt, and the support portion extends along the conveying direction of the conveyor belt, and the support portion is used to support the area between two adjacent rows of glue points on the battery cell.

[0012] The supporting portion is higher and narrower than the conveying surface of the conveying narrow belt, and is more likely to support the battery cell by avoiding the glue spots on the lower surface of the battery cell.

[0013] In some embodiments, the support portion is a continuous strip support rib, and a plurality of adsorption holes are arranged at intervals on the strip support rib. In other embodiments, the support portion is a support block arranged at intervals along the conveying direction of the conveying narrow belt, and at least one adsorption hole is arranged on the support block.

[0014] The continuous strip support rib structure helps to form a stable and reliable support for the battery cell and avoid glue spots; the support blocks arranged at intervals are more conducive to avoiding glue spots on the lower surface of the battery cell; by arranging adsorption holes on the support part, the support part can adsorb the battery cell while avoiding glue spots, and the number of adsorption holes can be flexibly set according to actual needs.

[0015] In some embodiments, the longitudinal cross-section of the support portion is rectangular, trapezoidal, or "convex" shaped; when the longitudinal cross-section of the support portion is trapezoidal or "convex" shaped, the width of the support portion gradually increases from top to bottom.

[0016] Several typical support part structures are provided. When the support part adopts the form of a longitudinal cross-section with a narrow upper width and a wide lower width, the narrower upper part can ensure a smaller contact area with the battery cell to better avoid the glue points on the lower surface of the battery cell, and the wider lower part can ensure a larger bonding area with the conveyor belt to improve the connection strength between the support part and the conveyor belt.

[0017] In some embodiments, the transmission mechanism includes: a transmission motor, which is installed on a frame; an active roller, which is rotatably arranged on an active roller frame, and the active roller is connected to the transmission motor and rotates with the transmission motor; and a driven roller, which is rotatably arranged on the driven roller frame; and each conveying narrow belt is in a circular shape and is tensioned on the active roller and the driven roller, so that pressure is generated on the contact surfaces between the conveying narrow belt and the active roller and the driven roller. When the active roller rotates, the driven roller is driven to rotate by relying on the friction between the conveying narrow belt and the contact surface of the active roller.

[0018] The structure is simple and reliable, which can ensure that each narrow conveyor belt can move synchronously and is also convenient for inspecting and maintaining the narrow conveyor belt.

[0019] In some embodiments, the transmission mechanism further includes: a tensioning adjustment component, which is disposed on the frame, and the tensioning adjustment component is used to drive the driven roller frame to move along the conveying direction of the conveying narrow belts to tension each conveying narrow belt.

[0020] This embodiment uses a tensioning adjustment component to ensure that each conveying narrow belt can be effectively tensioned and stably conveyed.

[0021] In one implementation example, the tensioning adjustment assembly includes: a slide rail mounted on a frame; a moving part slidably mounted on the slide rail; and a tensioning cylinder mounted on the frame and used to drive the moving part to reciprocate on the slide rail; and a driven roller frame mounted on the moving part and movable with the moving part.

[0022] Through the coordination among the tensioning cylinder, the moving part and the driven roller frame, the position of the driven roller frame on the frame is changed by the drive of the tensioning cylinder, thereby adjusting the far / near position of the driven roller relative to the active roller, and further realizing the adjustment of the tension of each conveyor belt.

[0023] In some embodiments, the transmission mechanism further includes: an angle adjustment component, which is disposed on the moving part and is used to push the driven roller frame to rotate in the horizontal direction to adjust the angle of the driven roller frame in the horizontal direction.

[0024] By adjusting the installation angle of the driven roller frame through the angle adjustment component, the angle of each conveyor belt can be adjusted to prevent the conveyor belt from deviating.

[0025] In one example, the driven roller frame is provided with two arms extending along the conveying direction of the conveyor belt, and the two arms are respectively located on both sides of the conveyor belt; the angle adjustment assembly includes: two mounting seats and two top screws, the two mounting seats are respectively installed on the moving part and correspond one to one with the arms, and the two top screws are respectively installed in the mounting holes of the two mounting seats through the horizontal direction; threaded holes are respectively provided at one end of the two arms close to the mounting seats, and the threaded ends of the top screws are screwed into the corresponding threaded holes; and each arm is provided with a vertical through hole, and the moving part is provided with a waist hole corresponding one to one to the vertical through hole, and the waist hole extends along the conveying direction of the conveyor belt, and the driven roller frame is fixedly connected by bolts installed in the vertical through hole and the waist hole.

[0026] Based on this structural form, the angle of the driven roller frame in the horizontal direction can be adjusted by the matching relationship between the top screw and the threaded hole on the support arm, and after the adjustment is completed, the driven roller frame can be fixed by the bolts in the vertical through hole and the waist hole. The structure of the angle adjustment component is simple, reliable and easy to implement.

[0027] In some embodiments, the adsorption mechanism includes an adsorption base plate and a vacuum generator. The adsorption base plate is arranged below the conveying surface of all conveying narrow belts. A gas flow channel is arranged inside the adsorption base plate. Adsorption grooves corresponding to the conveying narrow belts are arranged on the top surface of the adsorption base plate. Air holes connected to the gas flow channel are opened in the adsorption grooves. The vacuum generator is connected to the gas flow channel through a pipeline.

[0028] This structure uses a vacuum generator to make the adsorption groove generate adsorption force on the battery cell through the gas flow channel, and the vacuum degree generated by the vacuum generator can be adjusted according to the different battery cells to increase the stability of adsorption.

[0029] In some embodiments, the adsorption bottom plate is extended along the conveying direction of the conveying narrow belt, a light source is further provided below the end of the adsorption bottom plate, and the adsorption bottom plate is a light-transmitting plate. In other embodiments, the adsorption bottom plate includes a first adsorption bottom plate and a second adsorption bottom plate sequentially provided along the conveying direction of the conveying narrow belt, a light source is further provided below the second adsorption bottom plate, and the second adsorption bottom plate is a light-transmitting plate.

[0030] The light emitted by the light source can be irradiated on the battery cell through the adsorption bottom plate, so as to cooperate with the camera located above the battery cell to take pictures of the battery cell, realize the defect detection function and / or position positioning of the battery cell, and the use of an integral adsorption bottom plate is convenient for processing and installation. For the adsorption bottom plate structure in the form of a non-integral structure, the first adsorption bottom plate can be made of a different material from the second adsorption bottom plate. For example, a material that is more wear-resistant than the second adsorption bottom plate can be selected to increase the service life of the first adsorption bottom plate.

[0031] In some embodiments, the conveyor belt is a light-transmitting conveyor belt to ensure that the light emitted by the light source can pass through the conveyor belt.

[0032] In some embodiments, the conveying device further comprises a narrow belt limiting plate, which is detachably mounted on the frame and has a plurality of limiting grooves, each of which is used to implement guide limiting of a conveying narrow belt.

[0033] The narrow belt limit plate provides a guide limit for the conveyor narrow belt to prevent the conveyor narrow belt from deviating. When switching to different grid-type battery cells, the positions of the glue dots on the battery cells are different. At this time, the spacing between the conveyor narrow belts can be adjusted by replacing narrow belt limit plates of different sizes without replacing all the conveyor narrow belts. Therefore, it has the characteristics of low cost and high production efficiency.

[0034] In some embodiments, the conveying device also includes at least two narrow-band limiting plates arranged between the active roller and the driven roller, wherein one narrow-band limiting plate is detachably mounted on the frame and close to the active roller, and the other narrow-band limiting plate is detachably mounted on the frame and close to the driven roller; and limiting grooves corresponding to the conveying narrow belts are provided on the narrow-band limiting plates, and each limiting groove is used to implement guide limiting of a conveying narrow belt.

[0035] By setting a narrow belt limit plate at a position close to the active roller side and close to the driven wheel side, the guide limit of each conveyor narrow belt is achieved, which is more helpful to ensure the stable operation of the conveyor narrow belt, and one or more narrow belt limit plates can also be set between the above two positions.

[0036] In some embodiments, the conveying device also includes: a battery cell aligning mechanism, which is arranged on the conveying path of the conveying narrow belt, and the battery cell aligning mechanism includes a first aligning component and a second aligning component which are relatively arranged on both sides of the conveying narrow belt, and the first aligning component and the second aligning component are used to cooperate in implementing the position correction of the battery cells conveyed to the battery cell aligning mechanism.

[0037] Correcting the position of the battery cell by using this battery cell regularization mechanism is helpful for subsequent operations such as testing the battery cell.

[0038] In some embodiments, the narrow conveyor belt is made of a belt or a steel belt. Two materials of the narrow conveyor belt are provided, both of which can meet the use requirements.

[0039] According to a second aspect of an embodiment of the present application, there is provided a battery cell stringing device, the device comprising the battery cell conveying device as described above.

[0040] According to the battery cell stringing equipment provided in the embodiment of the present application, by configuring the battery cell conveying device provided in the embodiment of the present application, it is possible to avoid the glue spots on the lower surface of the battery cell from contaminating the conveyor belt, and it is also possible to avoid the conveyor belt from damaging the glue spots on the lower surface of the battery cell, thereby ensuring the quality of subsequent battery stringing.

[0041] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0043] Figure 1 It is a schematic diagram of the overall structure of the battery cell conveying device according to an embodiment of the present application at a first viewing angle;

[0044] Figure 2 A front view of a battery sheet conveying device according to an embodiment of the present application;

[0045] Figure 3 It is a schematic diagram of the overall structure of the battery cell conveying device according to an embodiment of the present application at a second viewing angle (the conveying narrow belt is not shown);

[0046] Figure 4 for Figure 3 A top view of

[0047] Figure 5 is a schematic diagram of the overall structure of the battery cell conveying device according to an embodiment of the present application at a third viewing angle;

[0048] Figure 6 A front view of a narrow conveyor belt according to an embodiment of the present application is shown;

[0049] Figure 7 A schematic diagram of the local structure of a conveyor narrow belt with a supporting portion being a strip-shaped supporting rib is shown;

[0050] Figure 8 The figure shows a partial structure diagram of a conveyor narrow belt whose supporting part is a supporting block;

[0051] Fig. 9 When the first embodiment is used to convey the narrow belt, Figure 6 Sectional view along line AA;

[0052] Fig.10 When the second embodiment is used to convey the narrow belt, Figure 6 Sectional view along line AA;

[0053] Fig.11 When the narrow belt is conveyed using the third embodiment, Figure 6 Sectional view along line AA;

[0054] Fig.12 Shows Figure 1 A schematic structural diagram of a narrow belt stopper of a conveying device shown;

[0055] Description of reference numerals:

[0056] 1- rack;

[0057] 11- support plate;

[0058] 2- Transmission mechanism;

[0059] 21-transmission motor; 22-active roller; 23-active roller frame; 24-driven roller; 25-driven roller frame; 251-support arm;

[0060] 26-tensioning adjustment assembly; 261-slide rail; 262-moving part; 2621-waist hole; 263-tensioning cylinder;

[0061] 27-angle adjustment assembly; 271-mounting seat; 272-top screw; 273-mounting hole;

[0062] 3- narrow conveyor belt;

[0063] 31-supporting part; 311-strip supporting ribs; 312-supporting block;

[0064] 32-adsorption hole;

[0065] 4- Adsorption mechanism;

[0066] 41-adsorption bottom plate; 411-first adsorption bottom plate; 412-second adsorption bottom plate; 413-adsorption slot;

[0067] 5-narrow band limiting plate; 51-limiting groove;

[0068] 6-battery sheet regularization mechanism; 61-first regularization component; 62-second regularization component;

[0069] 100-battery cell;

[0070] 200 - Light source. DETAILED DESCRIPTION

[0071] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0072] The existing battery cell conveying device uses an integral wide belt to convey the battery cells after glue application. Since the glue spots on the lower surface of the battery cells have not yet solidified and are still sticky, the glue spots will contaminate the integral wide belt, and the integral wide belt will also damage the glue spots on the lower surface of the battery cells, making it difficult to ensure the quality of subsequent battery strings.

[0073] In view of this, an embodiment of the present application provides a battery cell conveying device, which uses at least two conveying narrow belts arranged side by side and at intervals to jointly support and convey the battery cells, and each conveying narrow belt is supported on the area between two adjacent rows of glue points on the battery cell, thereby avoiding interference between the conveying narrow belt and the glue points on the lower surface of the battery cell, avoiding the glue points on the lower surface of the battery cell from contaminating the conveying narrow belt, and avoiding the conveying narrow belt from damaging the glue points.

[0074] like Figure 1-4 As shown, the battery cell conveying device provided in the embodiment of the present application includes a frame 1, a transmission mechanism 2 installed on the frame 1, at least two conveyor belts 3 and an adsorption mechanism 4. Among them, all the conveyor belts 3 are arranged side by side on the transmission mechanism 2, and the transmission mechanism 2 is used to drive each conveyor belt 3 to convey synchronously. Each conveyor belt 3 is used to jointly support and convey the battery cell 100, and a plurality of glue points are arranged on the lower surface of the battery cell 100. When the battery cell stringing process is specifically implemented, since each row of glue points is used to bond a corresponding welding ribbon, the number of rows of glue points on the surface of the battery cell is usually consistent with the number of welding ribbons, and the welding ribbon is cured and bonded to the glue point row on the lower surface of the battery cell 100 according to the stringing rule of the battery string to form a battery string.

[0075] As Figure 1 As shown, in this embodiment, each conveyor belt 3 is arranged at intervals, and the width of the contact area between each conveyor belt 3 and the battery cell is not greater than the spacing between two adjacent rows of glue dots on the battery cell, so that each conveyor belt 3 is supported on the area between two adjacent rows of glue dots on the battery cell, thereby avoiding interference between the conveyor belt 3 and the glue dots on the lower surface of the battery cell, thereby avoiding damage to the glue dots on the lower surface of the battery cell and contamination of the conveyor belt 3.

[0076] like Figure 1 and 2 As shown, in this embodiment, the adsorption mechanism 4 is arranged below the conveying surface of all the conveying narrow belts 3, and the conveying surface of each conveying narrow belt 3 is provided with an adsorption hole 32. The adsorption mechanism 4 adsorbs the battery cells on each conveying narrow belt 3 through the adsorption hole 32, so that the battery cells stably follow the movement of each conveying narrow belt 3. Thus, through the cooperation of the adsorption mechanism 4 and the adsorption hole 32, the conveying narrow belt 3 is adsorbed and fixed to the battery cells, thereby ensuring the relative position between the conveying narrow belt 3 and the battery cells, and avoiding the battery cells from being misplaced during the conveying process.

[0077] According to the battery cell conveying device provided in the embodiment of the present application, at least two conveying narrow belts 3 arranged side by side and at intervals are arranged on the transmission mechanism 2, all the conveying narrow belts 3 jointly support and convey the battery cells, and each conveying narrow belt 3 is supported on the area between two adjacent rows of glue points on the battery cell, so as to avoid interference between the conveying narrow belt 3 and the glue points on the lower surface of the battery cell; at the same time, by means of the adsorption mechanism 4 arranged below all the conveying narrow belts 3, in cooperation with the adsorption holes 32 on the conveying surface of the conveying narrow belt 3, the adsorption of the battery cell by the conveying narrow belt 3 is achieved, thereby ensuring the relative position between the conveying narrow belt 3 and the battery cell, and avoiding the misalignment of the battery cell during the conveying process. The overall structural design of the battery cell conveying device provided in the embodiment of the present application is ingenious, and while achieving stable conveying of battery cells with glue points, it can avoid the glue points on the lower surface of the battery cell from contaminating the conveying narrow belt 3, and can avoid the conveying narrow belt 3 from damaging the glue points, thereby effectively ensuring the stringing quality of the battery string.

[0078] It should be noted that the width of the contact area between each conveyor belt 3 and the battery cell 100 is not greater than the spacing between two adjacent rows of glue dots on the battery cell 100. This can be achieved by ensuring that the overall width of each conveyor belt 3 is not greater than the spacing between two adjacent rows of glue dots on the battery cell 100. In this case, the overall width of each conveyor belt 3 needs to be narrower, which places higher requirements on the manufacture and use of the conveyor belts. It can also be achieved by providing a support portion on each conveyor belt 3, which is easy to achieve.

[0079] Some preferred implementation structures of the conveyor belt 3 supporting the battery cells are described below in conjunction with the accompanying drawings.

[0080] Optionally, in some embodiments, Figure 1 and Figure 6-11 As shown, a raised support portion 31 is provided on the conveying surface of each conveying narrow belt 3, and the support portion 31 extends along the conveying direction of the conveying narrow belt 3, and the support portion 31 is used to support the area between two adjacent rows of glue dots on the battery cell. The support portion 31 is higher and narrower than the conveying surface of the conveying narrow belt 3, so that the support portion 31 can more easily avoid the glue dots on the lower surface of the battery cell to support the battery cell, and can further avoid interference between the conveying narrow belt 3 and the glue dots on the lower surface of the battery cell.

[0081] Furthermore, in some embodiments, Figure 7 As shown, the support portion 31 can be a continuous strip support rib 311, and a plurality of adsorption holes 32 are arranged at intervals on the strip support rib 311, so that the strip support rib 311 can adsorb the battery cell while avoiding the glue point, and the number of adsorption holes 32 can be flexibly set according to actual needs. The continuous strip support rib 311 has a stable structure, is easy to manufacture, and can reliably support the battery cell and avoid the glue point.

[0082] Optionally, in other embodiments, such as Figure 8As shown, the support portion 31 may be support blocks 312 arranged at intervals along the conveying direction of the conveyor narrow belt 3, and the intervals between adjacent support blocks 312 may be more conducive to the support blocks 312 avoiding the glue points on the lower surface of the battery cell. At least one adsorption hole 32 is provided on each support block 312, so that the support block 312 can adsorb the battery cell while avoiding the glue points, and the number of adsorption holes 32 may be set according to actual application requirements, and is not limited here.

[0083] Preferably, the upper surface of the support portion 31 is a flat surface, and the longitudinal cross-section of the support portion 31 can be a rectangular, trapezoidal, or "convex" shape. Fig. 9 As shown, the longitudinal cross-section of the support portion 31 can be a rectangle, that is, the longitudinal cross-section of the continuous strip support rib 311 or the support block 312 can be a rectangle. In this case, the upper and lower widths of the support portion 31 are the same, which is easy to implement. Fig.10 As shown, the longitudinal cross-section of the support portion 31 may be a trapezoid, that is, the longitudinal cross-section of the continuous strip support rib 311 or the support block 312 may be a trapezoid, and the width of the support portion 31 gradually increases from top to bottom. Fig.11 As shown, the longitudinal cross-sectional shape of the support portion 31 can be a "convex" shape, that is, the longitudinal cross-sectional shape of the continuous strip-shaped support ribs 311 or the support block 312 can be a "convex" shape, and the width of the support portion 31 gradually increases from top to bottom. When the longitudinal cross-sectional width of the support portion 31 is narrow at the top and wide at the bottom, its narrow upper portion can ensure a smaller contact surface with the battery cell to better avoid the glue points on the lower surface of the battery cell, and its wider lower portion can ensure a larger bonding area with the conveyor belt 3 to improve the connection strength between the support portion 31 and the conveyor belt 3.

[0084] The above mainly discusses the battery cell support structure arranged on the conveying surface of the conveyor belt, and now turns to the description of the transmission structure.

[0085] In some embodiments, Figures 1 to 4 As shown, the transmission mechanism 2 includes a transmission motor 21, a driving roller 22 and a driven roller 24, wherein the transmission motor 21 is mounted on the frame 1, the driving roller 22 is rotatably mounted on the driving roller frame 23, the driving roller 22 is connected to the transmission motor 21 and rotates with the transmission motor 21, and the driven roller 24 is rotatably mounted on the driven roller frame 25. The driving roller frame 23 and the driven roller frame 25 are both mounted on the frame 1. Each conveying narrow belt 3 is in a circular shape and is tensioned on the driving roller 22 and the driven roller 24, so that pressure is generated on the contact surfaces between the conveying narrow belt 3 and the driving roller 22 and the driven roller 24. When the driving roller 22 rotates, the driven roller 24 is driven to rotate by the friction between the conveying narrow belt 3 and the contact surfaces between the driving roller 22 and the driven roller 24.

[0086] By forming each conveyor belt 3 into a circular ring and tensioning it between the active roller 22 and the driven roller 24, the friction between the conveyor belt 3 and the contact surface between the active roller 22 and the driven roller 24 is used to drive the conveyor belt 3 to move. The installation structure is simple and reliable, and can also ensure that each conveyor belt 3 can move synchronously, and is also convenient for the inspection and maintenance of the conveyor belt 3.

[0087] Optionally, in some embodiments, Figure 3 and 4 As shown, the transmission mechanism 2 further includes a tensioning adjustment component 26 , which is disposed on the frame 1 , and is used to drive the driven roller frame 25 to move along the conveying direction of the conveying narrow belts 3 to tension each conveying narrow belt 3 .

[0088] As an example, the tensioning adjustment assembly 26 includes a slide rail 261, a moving part 262 and a tensioning cylinder 263, wherein the slide rail 261 is installed on the frame 1, the moving part 262 is slidably installed on the slide rail 261 through a slider, the tensioning cylinder 263 is installed on the frame 1, the tensioning cylinder 263 is used to drive the moving part 262 to reciprocate on the slide rail 261, and the driven roller frame 25 is installed on the moving part 262, and the driven roller frame 25 can move with the moving part 262.

[0089] Preferably, the slide rail 261 can be a linear slide rail, and the slide rail 261 is preferably perpendicular to the axis of the driven roller 24 to ensure that the tension of the conveyor belt 3 can be adjusted in the conveying direction of the conveyor belt 3. The moving part 262 can be a moving plate, and the moving plate can stably support the driven roller frame 25 during the movement. The piston rod of the tensioning cylinder 263 is fixedly connected to the moving plate, and a support plate 11 is provided on the frame 1. The slide rail 261 and the tensioning cylinder 263 are both installed on the support plate 11, which can ensure that the slide rail 261 and the tensioning cylinder 263 are installed on the same horizontal plane, so that the moving plate can drive the slider to slide smoothly on the slide rail 261.

[0090] Under the premise that the position of the active roller 22 is fixed, the moving part 262 is driven by the tensioning cylinder 263 to change the position of the driven roller frame 25 on the frame 1 along the conveying direction of the conveyor narrow belt 3, thereby adjusting the far / near position of the driven roller 24 relative to the active roller 22, thereby adjusting the tension of each conveyor narrow belt 3 sleeved between the active roller 22 and the driven roller 24. The tensioning adjustment component 26 has a simple and reliable structure, is easy to implement and has good stability.

[0091] Furthermore, in some embodiments, Figures 3 to 5As shown, the transmission mechanism 2 also includes an angle adjustment component 27, which is arranged on the moving part 262. The angle adjustment component 27 is used to push the driven roller frame 25 to rotate in the horizontal direction to adjust the installation angle of the driven roller frame 25 in the horizontal direction, so as to realize the angle adjustment of each conveyor belt 3 and prevent each conveyor belt 3 from deviation.

[0092] Exemplarily, the driven roller frame 25 is provided with two arms 251 extending along the conveying direction of the conveyor belt 3, and the two arms are respectively located on both sides of the conveyor belt 3. The angle adjustment assembly 27 includes two mounting seats 271 and two top screws 272, wherein the two mounting seats 271 are respectively mounted on the moving part 262 and correspond to the arms 251 one by one. The two top screws 272 are respectively installed in the mounting holes 273 of the two mounting seats 271 in the horizontal direction, and the mounting seats 271 are used to support the installation of the top screws 272. The ends of the two arms 251 close to the mounting seats are respectively provided with threaded holes, and the threaded ends of the top screws 272 are screwed into the corresponding threaded holes. Each support arm 251 is provided with a vertical through hole, and the movable part 262 is provided with a waist hole 2621 corresponding to the vertical through hole. The waist hole 2621 extends along the conveying direction of the conveyor belt 3. The driven roller frame 25 is fixedly connected by bolts (not shown in the figure) installed in the vertical through hole and the waist hole 2621. When the angle of the driven roller frame 25 needs to be adjusted, first loosen the bolts passing through the driven roller frame 25 and the waist hole 2621, then adjust the corresponding top screw until the angle of the driven roller frame 25 is in place, and finally tighten the bolts. The structure of the angle adjustment component 27 is simple and reliable, easy to realize the correction of the driven roller frame, and low cost.

[0093] The structural form of the adsorption mechanism 4 will be described below in conjunction with the accompanying drawings.

[0094] As Figure 1-5 As shown, in some embodiments, the adsorption mechanism 4 includes an adsorption bottom plate 41 and a vacuum generator (not shown in the figure), wherein the adsorption bottom plate 41 is arranged below the conveying surface of all conveying narrow belts 3, and a gas flow channel (not shown in the figure) is arranged inside the adsorption bottom plate 41, and adsorption grooves 413 corresponding to the conveying narrow belts 3 are arranged on the top surface of the adsorption bottom plate 41, and air holes connected to the gas flow channel are opened in the adsorption grooves; the vacuum generator is connected to the gas flow channel through a pipeline. This structure uses the vacuum generator to make the adsorption groove 413 generate adsorption force on the battery cell through the gas flow channel, and the vacuum degree generated by the vacuum generator can be adjusted according to the different battery cells to increase the stability of adsorption.

[0095] The adsorption bottom plate 41 may be any of the following structural forms:

[0096] First, the adsorption bottom plate 41 is an integrated structure.

[0097] In this embodiment, the adsorption bottom plate 41 is extended along the conveying direction of the conveyor narrow belt 3. The adsorption bottom plate 41 adopts an integral structure, which can be easily processed and installed. The entire adsorption bottom plate 41 is a light-transmitting plate, and a light source 200 is arranged below the end of the adsorption bottom plate 41. The light emitted by the light source 200 can pass through the adsorption bottom plate 41 and irradiate the battery cell, so as to cooperate with the camera located above the battery cell to take pictures of the battery cell and realize the detection of the battery cell.

[0098] Secondly, the adsorption bottom plate 41 is a split structure.

[0099] In this embodiment, if Figure 3 As shown, the adsorption bottom plate 41 includes a first adsorption bottom plate 411 and a second adsorption bottom plate 412 which are sequentially arranged along the conveying direction of the conveyor narrow belt 3. The adsorption bottom plate 41 adopts a split structure, so that the first adsorption bottom plate 411 and the second adsorption bottom plate 412 can be made of different materials. Among them, the first adsorption bottom plate 411 may not be light-transmissive, and may be made of other more wear-resistant materials (such as metal plates) to increase its service life; the second adsorption bottom plate 412 is a light-transmitting plate, and a light source 200 is arranged below the second adsorption bottom plate 412. The light emitted by the light source 200 can be transmitted through the second adsorption bottom plate 412 to irradiate the battery cell, so as to cooperate with the camera located above the battery cell to take pictures of the battery cell and realize the detection of the battery cell.

[0100] In some embodiments, in order to facilitate the conveying narrow belt to pass through the light emitted by the light source 200, the conveying narrow belt is selected to be a light-transmitting conveyor belt.

[0101] When the present application is implemented, there are multiple choices for the material form of the conveyor belt 3. In some embodiments, the conveyor belt 3 can be a belt, preferably a light-transmitting belt, to cooperate with the light-transmitting adsorption base plate 41, so that the light emitted by the light source 200 located below the adsorption base plate 41 can pass through the conveyor belt 3 and the adsorption base plate 41 to irradiate the battery cell. In other embodiments, the conveyor belt 3 can be a steel belt, which is not light-transmitting, so the battery cell area covered by the steel belt cannot be inspected for defects, which is suitable for situations where the requirements for battery cell defect detection are not high.

[0102] In some embodiments, Figures 1 to 4 and Fig.12As shown, the battery cell conveying device mentioned above also includes a narrow band limiting plate 5, which can be detachably mounted on the frame 1. For example, the narrow band limiting plate 5 can be mounted on the frame 1 by means of clamping, screwing, etc., so as to facilitate the replacement and maintenance of the narrow band limiting plate 5. The narrow band limiting plate 5 is provided with limiting grooves 51 corresponding to the conveying narrow belts 3 one by one, and each limiting groove 51 is used to implement the guide limit of a conveying narrow belt 3. It should be noted that the spacing of the limiting grooves 51 on the narrow band limiting plates 5 of different specifications is different, and the limiting grooves 51 with different spacings can be used to adjust the arrangement of each conveying narrow belt 3 at different positions to adjust the spacing between each conveying narrow belt 3. When switching to battery cells of different grid types, the positions of the glue spots on the battery cells are different. At this time, the spacing between each conveying narrow belt 3 can be adjusted by replacing narrow band limiting plates 5 of different sizes, without replacing all conveying narrow belts 3, which is low in cost and high in production efficiency.

[0103] Optional, such as Figures 1 to 4 and Fig.12 As shown, the cell conveying device mentioned above also includes at least two narrow band limiting plates 5 arranged between the active roller 22 and the driven roller 24, and each narrow band limiting plate 5 is provided with a limiting groove 51 corresponding to the conveying narrow band 3, and each limiting groove 51 is used to implement the guide limit of a conveying narrow band 3. Exemplarily, when two narrow band limiting plates 5 are used, one narrow band limiting plate 5 is detachably mounted on the frame 1 and close to the active roller 22, and the other narrow band limiting plate 5 is detachably mounted on the frame 1 and close to the driven roller 24. When three or more narrow band limiting plates 5 are used, two narrow band limiting plates 5 are respectively arranged close to the active roller 22 and the driven roller 24, and are located at both ends of the frame 1, and the remaining narrow band limiting plates 5 can be arranged at intervals between the two narrow band limiting plates 5 at both ends to jointly realize the guide limit of each conveying narrow band 3. The number of narrow band limiting plates 5 can be set according to actual application requirements and is not limited here.

[0104] In some embodiments, Figures 1 to 4 As shown, the conveying device also includes a battery cell aligning mechanism 6, which is arranged on the conveying path of the conveying narrow belt 3. The battery cell aligning mechanism 6 includes a first aligning component 61 and a second aligning component 62 relatively arranged on both sides of the conveying narrow belt 3. The first aligning component 61 and the second aligning component 62 are used to cooperate in implementing the position correction of the battery cells conveyed to the battery cell aligning mechanism 6.

[0105] Preferably, the first organizing component 61 and the second organizing component 62 are arranged opposite to each other, and a organizing space is formed between the first organizing component 61 and the second organizing component 62 for the battery cells to be organized to pass through; the first organizing component 61 is configured to move toward the second organizing component 62 to a predetermined organizing position, and the second organizing component 62 is configured to push the battery cells in the organizing space to move toward the first organizing component 61 and abut against the first organizing component 61, and the second organizing component 62 undergoes elastic deformation when subjected to the reverse thrust of the battery cells.

[0106] By providing a first organizing component 61 and an elastic second organizing component 62, when the second organizing component 62 presses the battery cell against the first organizing component 61, it can undergo elastic deformation when subjected to the reverse thrust of the battery cell, thereby reducing the force acting on the battery cell and greatly reducing the fragmentation rate.

[0107] A battery cell stringing device is also provided in an embodiment of the present application. The battery cell stringing device includes the battery cell conveying device described in the above embodiment.

[0108] According to the battery cell stringing equipment provided in the embodiment of the present application, by configuring the battery cell conveying device provided in the embodiment of the present application, it is possible to avoid the glue spots on the lower surface of the battery cell from contaminating the conveyor belt, and it is also possible to avoid the conveyor belt from damaging the glue spots on the lower surface of the battery cell, thereby ensuring the quality of subsequent battery stringing.

[0109] In the above description of the present application, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected" or "connected" and the like should be understood in a broad sense. For example, with regard to the term "connection", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in the present application, those skilled in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.

[0110] According to the above description of the present application, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "center", "longitudinal", "lateral", "clockwise" or "counterclockwise", etc., which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of the present application, and are only for the purpose of facilitating the explanation of the scheme of the present utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present utility model.

[0111] In addition, the terms "first" or "second" used in this application to refer to numbers or ordinals are only used for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0112] Although multiple embodiments of the present application have been shown and described herein, it is obvious to those skilled in the art that such embodiments are provided only by way of example. Those skilled in the art can think of many changes, modifications and alternatives without departing from the thought and spirit of the present application. It should be understood that in the process of practicing the present application, various alternatives to the embodiments of the present application described herein can be adopted. The attached claims are intended to limit the scope of protection of the present application, and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A battery sheet conveying device, characterized in that: include: frame; A transmission mechanism is installed on the frame; At least two conveyor belts, all of which are arranged side by side and at intervals on the transmission mechanism, the transmission mechanism is used to drive each of the conveyor belts to transmit synchronously, each of the conveyor belts is used to jointly support and convey the battery cell, a plurality of glue discharge points are arranged on the lower surface of the battery cell, and each of the conveyor belts supports the area between two adjacent rows of glue points on the battery cell; The adsorption mechanism is arranged below the conveying surface of all the conveying narrow belts. The conveying surface of the conveying narrow belts is provided with adsorption holes. The adsorption mechanism adsorbs the battery cells on the conveying narrow belts through the adsorption holes so that the battery cells can stably follow the movement of the conveying narrow belts.

2. The battery sheet conveying device according to claim 1, characterized in that: A protruding support portion is provided on the conveying surface of each of the conveying narrow belts. The support portion extends along the conveying direction of the conveying narrow belts and is used to support the area between two adjacent rows of glue dots on the battery sheet.

3. The battery sheet conveying device according to claim 2, characterized in that: The support portion is a continuous strip support rib, and a plurality of adsorption holes are arranged at intervals on the strip support rib; Alternatively, the support portion is a support block arranged at intervals along the conveying direction of the conveyor belt, and at least one adsorption hole is provided on the support block.

4. The battery sheet conveying device according to claim 2, characterized in that: The longitudinal cross-sectional shape of the support portion is rectangular, trapezoidal or "convex"-shaped; when the longitudinal cross-sectional shape of the support portion is trapezoidal or "convex"-shaped, the width of the support portion gradually increases from top to bottom.

5. The battery sheet conveying device according to any one of claims 1 to 4, characterized in that: The transmission mechanism comprises: A transmission motor, wherein the transmission motor is mounted on the frame; An active roller, wherein the active roller is rotatably arranged on an active roller frame, and the active roller is transmission-connected to the transmission motor and rotates along with the transmission motor; A driven roller, the driven roller being rotatably arranged on a driven roller frame; Each of the narrow conveyor belts is in a circular shape and is tensioned on the active roller and the driven roller, so that pressure is generated on the contact surfaces between the narrow conveyor belt and the active roller and the driven roller. When the active roller rotates, the driven roller is driven to rotate by relying on the friction between the narrow conveyor belt and the contact surfaces between the active roller and the driven roller.

6. The battery sheet conveying device according to claim 5, characterized in that: The transmission mechanism also includes: A tensioning and adjusting assembly is arranged on the frame, and is used for driving the driven roller frame to move along the conveying direction of the conveying narrow belts to tension each of the conveying narrow belts.

7. The battery sheet conveying device according to claim 6, characterized in that: The tension adjustment assembly comprises: A slide rail, mounted on the rack; A moving part, wherein the moving part is slidably mounted on the slide rail; A tensioning cylinder, mounted on the frame, the tensioning cylinder being used to drive the moving part to reciprocate on the slide rail; The driven roller frame is installed on the moving part and can move with the moving part.

8. The battery sheet conveying device according to claim 7, characterized in that: The transmission mechanism also includes: The angle adjustment component is arranged on the moving part and is used for pushing the driven roller frame to rotate in the horizontal direction so as to adjust the angle of the driven roller frame in the horizontal direction.

9. The battery sheet conveying device according to claim 8, characterized in that: The driven roller frame is provided with two arms extending along the conveying direction of the conveying narrow belt, and the two arms are respectively located on both sides of the conveying narrow belt; the angle adjustment component includes: Two mounting seats, the two mounting seats are respectively mounted on the moving part and correspond one to one with the supporting arms; Two top screws, the two top screws are respectively installed in the mounting holes of the two mounting seats through the horizontal direction; The two arms are provided with threaded holes at one end close to the mounting seat, and the threaded ends of the top screws are screwed into the corresponding threaded holes; A vertical through hole is provided on each of the support arms, and a waist hole corresponding to the vertical through hole is provided on the movable part. The waist hole extends along the conveying direction of the conveyor belt, and the driven roller frame is fixedly connected by bolts installed in the vertical through hole and the waist hole.

10. The battery sheet conveying device according to any one of claims 1 to 4, characterized in that: The adsorption mechanism comprises: An adsorption bottom plate, the adsorption bottom plate is arranged below the conveying surface of all the conveying narrow belts, a gas flow channel is arranged inside the adsorption bottom plate, adsorption grooves corresponding to the conveying narrow belts are arranged on the top surface of the adsorption bottom plate, and air holes communicating with the gas flow channel are opened in the adsorption grooves; The vacuum generator is connected with the gas flow channel through a pipeline.

11. The battery sheet conveying device according to claim 10, characterized in that: The adsorption bottom plate is extended along the conveying direction of the conveying narrow belt, a light source is further arranged below the end of the adsorption bottom plate, and the adsorption bottom plate is a light-transmitting plate; or, The adsorption bottom plate comprises a first adsorption bottom plate and a second adsorption bottom plate which are sequentially arranged along the conveying direction of the conveying narrow belt, a light source is further arranged below the second adsorption bottom plate, and the second adsorption bottom plate is a light-transmitting plate.

12. The battery sheet conveying device according to claim 11, characterized in that: The narrow conveyor belt is a light-transmitting conveyor belt.

13. The battery sheet conveying device according to any one of claims 1 to 4, characterized in that: The conveying device also includes: A narrow belt limiting plate is detachably mounted on the frame, and limiting grooves corresponding to the conveying narrow belts are formed on the narrow belt limiting plate, and each limiting groove is used to implement the guide limiting of one of the conveying narrow belts.

14. The battery sheet conveying device according to claim 5, characterized in that: The conveying device also includes: At least two narrow band limiting plates are arranged between the active roller and the driven roller, wherein one of the narrow band limiting plates is detachably mounted on the frame and close to the active roller, and the other narrow band limiting plate is detachably mounted on the frame and close to the driven roller; The narrow belt limiting plate is provided with limiting grooves corresponding to the conveying narrow belts one by one, and each of the limiting grooves is used to implement the guide limiting of one of the conveying narrow belts.

15. The battery sheet conveying device according to any one of claims 1 to 4, characterized in that: The conveying device also includes: A battery cell aligning mechanism is arranged on the conveying path of the conveying narrow belt. The battery cell aligning mechanism includes a first aligning component and a second aligning component which are relatively arranged on both sides of the conveying narrow belt. The first aligning component and the second aligning component are used to cooperate in correcting the position of the battery cells conveyed to the battery cell aligning mechanism.

16. The battery sheet conveying device according to any one of claims 1 to 4, characterized in that: The narrow conveyor belt is a belt or a steel belt.

17. A battery cell stringing device, characterized in that: It comprises the battery sheet conveying device as claimed in any one of claims 1 to 16.

Images