Rotary tape applicator

Abstract

This invention relates to the field of automated photovoltaic module assembly technology, and provides a rotating tape-applying mechanism, comprising: a negative pressure supply device, multiple adsorption plates, and a guiding mechanism; the negative pressure supply device includes a rotating column and a vacuum channel, the rotating column being a cylindrical structure with its axis parallel to the horizontal direction; the rotating column rotates along its axis; multiple adsorption plates are arranged circumferentially along the rotating column and rotate with it, the adsorption plates being slidably connected to the rotating column, the sliding direction being perpendicular to the axis of the rotating column; the adsorption plates are provided with adsorption holes for adsorbing tape; the vacuum channel communicates with the adsorption holes; the guiding mechanism is used to guide the adsorption plates to slide on the rotating column so that adjacent adsorption plates move away from each other. In this solution, after the tape is cut and rotated downwards, the lower tape automatically separates from the upstream tape and does not adhere, improving the adhesion effect.

Description

Technical Field

[0001] This invention relates to the field of automated assembly technology for photovoltaic modules, and in particular to a rotating tape applicator. Background Technology

[0002] Solar energy, as a renewable energy source, is abundant, can be used for free, requires no transportation, and causes no pollution to the environment. It creates a new way of life for mankind and ushers society and humanity into an era of energy conservation and pollution reduction.

[0003] Solar cells are the core component of a solar power generation system and also the most valuable part of the system.

[0004] In the production process of solar cells, two cells are typically connected by solder ribbons, and then secured to the cells with adhesive tape. Current adhesive application methods usually involve cutting the tape first and then moving it above or below the cell for application. This method requires a large machine space, has low application efficiency, and may cause misalignment of the tape during horizontal movement.

[0005] If an integrated rotary tape applicator is used, the tape is adsorbed onto the adsorption plates. Multiple adsorption plates are fixed to the rotating shaft along its circumference. The adsorption plates rotate under the drive of the rotating shaft. The tape can be separated by cutting the gaps between the adsorption plates. However, after cutting, due to the adhesiveness of the tape, the tape between adjacent adsorption plates will be re-adhered, affecting the subsequent application effect and work efficiency.

[0006] Therefore, there is an urgent need to develop a rotary tape applicator that can pick up, cut, and press down the tape by rotating it. It can also separate the tape from the two adsorption plates after cutting, thereby improving the bonding effect and work efficiency. At the same time, it can ensure that the air path is not interrupted while rotating the tape to maintain the adsorption of the tape. Summary of the Invention

[0007] The purpose of this invention is to provide a rotating tape applicator that picks up, cuts, and presses down the tape by rotating it. It can also separate the tape from the two adsorption plates after cutting, thereby improving the bonding effect and work efficiency. At the same time, it can ensure that the air path is not interrupted and the tape is maintained during the rotation of the tape.

[0008] To solve the above-mentioned technical problems, as one aspect of the present invention, a rotary tape applicator is provided, comprising: a negative pressure supply device, multiple adsorption plates, and a guiding mechanism;

[0009] The negative pressure supply device includes a rotating column and a vacuum channel. The rotating column is a cylindrical structure with its axis parallel to the horizontal direction; the rotating column rotates along its axis.

[0010] Multiple adsorption plates are arranged circumferentially along the rotating column and rotate with the rotating column. The adsorption plates are slidably connected to the rotating column, and the sliding direction is perpendicular to the axis of the rotating column. The adsorption plates are provided with adsorption holes for adsorbing adhesive tape. The vacuum channel is connected to the adsorption holes.

[0011] The guiding mechanism is used to guide the adsorption plates to slide on the rotating column so that adjacent adsorption plates are separated.

[0012] According to an exemplary embodiment of the present invention, a plurality of adsorption plates are used to pull out the tape set as the rotating column rotates. After the tape is cut, one adsorption plate corresponds to a section of tape set, and the adsorption plates supply the tape set to the welding ribbon set covering the surface of the battery cell for bonding.

[0013] According to an exemplary embodiment of the present invention, the guiding mechanism includes a guide plate and a guide member. There are one or two guide plates, which are disposed at one or both ends of the adsorption plate along the axial direction of the rotating column. Each adsorption plate has one or two guide members fixed at one or both ends along the axial direction of the rotating column. A guide groove is provided on the guide plate, and the guide member slides in the guide groove.

[0014] According to an exemplary embodiment of the present invention, the guide member is a bearing structure, with its inner ring fixedly connected to the adsorption plate and its outer ring slidably connected to the guide groove.

[0015] According to an exemplary embodiment of the present invention, the guide groove is an annular structure surrounding the rotating column, the lower part of which protrudes downward, such that the adsorption plate moving towards the bottom of the rotating adhesive tape mechanism is away from its upstream adjacent adsorption plate.

[0016] According to an exemplary embodiment of the present invention, the guide groove is a quasi-annular structure.

[0017] According to an exemplary embodiment of the present invention, the guide groove is formed by combining two segments of superior arc groove and inferior arc groove whose centers do not coincide and whose radii are not equal, wherein the radius of the inferior arc groove is smaller than the radius of the superior arc groove; the superior arc groove is located above the inferior arc groove.

[0018] According to an exemplary embodiment of the present invention, the lowermost end of the inferior arc groove is located at the lowermost end of the guide groove.

[0019] According to an exemplary embodiment of the present invention, the rotating adhesive tape applicator further includes a sliding member, which includes a linear bearing and a sliding shaft. The linear bearing is fixed on the rotating column and has a through hole. One end of the sliding shaft is fixedly connected to the adsorption plate, and the other end is inserted into the through hole. The central axis of the through hole is perpendicular to the axis of the rotating column.

[0020] According to an exemplary embodiment of the present invention, the negative pressure supply device further includes a rotating shaft, a venting slip ring, and a rotating shaft sleeve; the vacuum channel includes a first venting channel and a second venting channel;

[0021] The rotating shaft sleeve has an annular cylindrical structure with multiple first vent holes on its annular wall. The multiple first vent holes are located on the same plane, which is perpendicular to the axis of the rotating shaft sleeve.

[0022] The outer wall of the rotating shaft is provided with multiple second vent holes, one end of the rotating shaft is provided with multiple third vent holes, and the rotating shaft is provided with multiple first vent channels, each of which connects to a second vent hole and a third vent hole.

[0023] A venting slip ring is fitted onto a rotating shaft and is fixedly connected to the rotating shaft; a rotating shaft sleeve is fitted onto the venting slip ring, and the venting slip ring is slidably connected to the rotating shaft sleeve; the venting slip ring has multiple vents on its ring wall, and the vents and second vents correspond one-to-one. The vents are located on the second vents, and the distance between two adjacent vents is less than the diameter of the first vent.

[0024] One end of the rotating shaft is fixedly connected to one end of the rotating column; the rotating column is provided with multiple second ventilation channels, each corresponding to a first ventilation channel; the third ventilation hole is connected to the second ventilation channel of the rotating column.

[0025] According to an exemplary embodiment of the present invention, the rotary tape applicator further includes an unwinding mechanism located upstream of the negative pressure supply device for providing tape.

[0026] According to an exemplary embodiment of the present invention, the rotating tape applicator further includes a lifting mechanism, which is fixedly connected to the negative pressure supply device and is used to drive the negative pressure supply device to move up and down.

[0027] According to an exemplary embodiment of the present invention, the rotating tape applicator further includes a cutting mechanism; there is a gap between every two adsorption plates, and the cutting mechanism is fixed to one side of the rotating column. When the gap between the adsorption plates rotates to the cutting area, the cutting mechanism moves into the gap to cut the tape.

[0028] As a second aspect of the present invention, the present invention provides a bonding device for battery cells and solder ribbons, comprising, in sequence: a battery cell placement device, a solder ribbon placement device, and the aforementioned rotating adhesive tape application mechanism;

[0029] The cell placement device is used to place the cell, the ribbon placement device is used to place the ribbon on top of the cell, and the rotating tape applicator is used to apply tape so that the cell and the ribbon are bonded together.

[0030] The beneficial effects of this invention are:

[0031] This invention features an annular guide groove with a downward-protruding lower part. When the tape rotates to the lower part, the guide component drives the lowest adsorption plate downward, moving it away from its upstream adjacent adsorption plate. This prevents adjacent tapes from sticking together, improving the adhesion effect and efficiency. Simultaneously, a negative pressure supply device ensures continuous air supply during rotation, guaranteeing that the tape application process can continue uninterrupted. Attached Figure Description

[0032] Figure 1 A schematic diagram of the rotating tape applicator is shown.

[0033] Figure 2 A schematic diagram of the rotating tape applicator is shown (from another angle).

[0034] Figure 3 The schematic diagram shows the structure of the lifting mechanism (with part of the support frame and part of the mounting base removed).

[0035] Figure 4 The schematic diagram shows the structure of the limiting assembly and the second transition wheel assembly.

[0036] Figure 5 The schematic diagram shows the structure of the negative pressure supply device, guide plate, cutting mechanism and adsorption plate assembly.

[0037] Figure 6 A schematic side view of the combination of the unwinding mechanism, negative pressure supply device, guide plate, cutting mechanism and suction plate is shown.

[0038] Figure 7 Schematic illustration Figure 6 Cross-sectional view along the DD direction.

[0039] Figure 8 A schematic side view of the negative pressure supply device, guide plate, and adsorption plate assembly is shown.

[0040] Figure 9 The diagram schematically illustrates the structure of the negative pressure supply device and part of the adsorption plate assembly.

[0041] Figure 10 A schematic diagram of the negative pressure supply device is shown (without rotating shaft bushing, timing belt, and selector drive).

[0042] Figure 11 A schematic top view of the adsorption plate is shown.

[0043] Figure 12 Schematic illustration Figure 11 Cross-sectional view along the AA direction.

[0044] Figure 13 A schematic side view of the adsorption plate is shown.

[0045] Figure 14 Schematic illustration Figure 13 Cross-sectional view along the BB direction.

[0046] Figure 15 A schematic diagram of the guide plate is shown.

[0047] Figure 16 The schematic diagram shows the structure of the guide groove of the guide plate.

[0048] Wherein, 1—lifting mechanism, 11—support frame, 12—mounting seat, 13—slide rail, 14—lifting drive, 15—ball screw, 16—nut, 17—nut sleeve, 18—slider, 191—buffer, 192—limit screw, 193—limit plate, 194—fixed plate, 2—unwinding mechanism, 21—unwinding wheel assembly, 22—first transition wheel assembly, 23—second transition wheel assembly, 24—limiting assembly, 241—upper limit plate, 242—lower limit plate, 243—bracket, 3—negative pressure supply device, 31—rotating column, 32—rotating shaft. 33—Ventilation slip ring, 34—Rotating shaft sleeve, 35—Synchronous pulley, 36—Synchronous belt, 37—Rotary actuator, 38—First ventilation channel, 39—Second ventilation channel, 310—Bearing, 4—Adsorption plate, 41—Adsorption hole, 42—Raised strip, 43—Strip groove, 44—Main road channel, 45—Secondary road channel, 46—Branch channel, 5—Cutting mechanism, 6—Guide plate, 61—Guide groove, 611—Significant arc groove, 612—Minor arc groove, 7—Guide component, 8—Air pipe connector, 9—Sliding component, 91—Linear bearing, 92—Sliding shaft. Detailed Implementation

[0049] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of regions and layers is exaggerated. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed descriptions will be omitted.

[0050] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the invention. However, those skilled in the art will recognize that the technical solutions of the invention can be practiced without one or more of the specific details, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of the invention.

[0051] The following example describes the tape laying apparatus and method for series-connected battery cells according to the present invention. This example is only a part of the embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. All other embodiments obtained by those skilled in the art without inventive effort should be covered within the scope of protection of the present invention.

[0052] As a first embodiment of the present invention, a rotating adhesive tape applicator is provided, such as... Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, it includes: a lifting mechanism 1, an unwinding mechanism 2, a negative pressure supply device 3, multiple adsorption plates 4, a cutting mechanism 5, a guide plate 6, and a guide component 7.

[0053] The lifting mechanism 1 is fixedly connected to the unwinding mechanism 2 and the negative pressure supply device 3, and is used to drive the unwinding mechanism 2, the negative pressure supply device 3, multiple adsorption plates 4, the cutting mechanism 5, the guide plate 6, and the guide component 7 to move up and down. Figure 3 As shown, the lifting mechanism 1 includes a support frame 11, a mounting base 12, a slide rail 13, a lifting driver 14, a ball screw 15, a nut 16, a nut sleeve 17, a slider 18, a limit plate 193, a limit screw 192, a buffer 191, and a fixing plate 194.

[0054] The slide rail 13 is vertically fixed to the support frame 11. The slider 18 is fixedly connected to both ends of the mounting base 12. Driven by the ball screw 15, the slider 18 can slide vertically up and down on the slide rail, enhancing the stability of the mounting base 12. Preferably, there are two slide rails 13, respectively arranged on both sides of the ball screw 15. Figure 1 and Figure 2As shown, the mounting base 12 is fixedly connected to the unwinding mechanism 2, the negative pressure supply device 3, the cutting mechanism 5, and the guide plate 6. The ball screw 15 is vertically arranged, and a nut 16 is threadedly connected to the ball screw 15. A nut sleeve 17 is fixed to the outer surface of the nut 16 and is fixedly connected to the mounting base 12. A lifting drive 14 is located at the top of the ball screw 15 and is used to drive the ball screw 15 to rotate. When the ball screw 15 rotates, the nut 16 moves the mounting base 12 vertically up and down. A limiting plate 193 is fixed to the mounting base 12, preferably at the top and / or bottom of the mounting base 12. A limiting screw 192 is vertically fixed to the support frame 11 and is located above and / or below the limiting plate 193. The buffer 191 is vertically fixed on the support frame 11 and located above and / or below the limiting plate 193. The distance between the buffer 191 and the limiting plate 193 is less than the distance between the limiting screw 192 and the limiting plate 193. Before the mounting base 12 moves to its highest or lowest point, the limiting plate 193 first contacts the buffer 191 to slow down the movement speed of the impact plate and prevent the limiting plate 193 from directly colliding with the limiting screw 192. Finally, the limiting screw 192 abuts against the limiting plate 193, stopping the movement of the mounting base 12 and preventing the mounting base 12 from derailing. In a specific implementation, there are two limiting plates 193, located at the top and bottom of the mounting base 12 respectively; two limiting screws 192, located at the top and bottom of the support frame 11 respectively; and two buffers 191, located at the top and bottom of the support frame 11 respectively. The limiting plates 193 at the top of the mounting base 12, the limiting screws 192 at the top of the support frame 11, and the buffers 191 form a height-limiting kit to limit the maximum height of the mounting base 12. The limiting plates 193 at the bottom of the mounting base 12, the limiting screws 192 at the bottom of the support frame 11, and the buffers 191 form a low-limiting kit to limit the minimum height of the mounting base 12. The portion of the buffer 191 that contacts the limiting plate 193 at the top or bottom is an elastic component. The buffers 191 and the limiting screws 192 are fixed to the support frame 11 by a fixing plate 194.

[0055] The unwinding mechanism 2 is located upstream and is used to supply multiple parallel tapes, which together form a tape set. For example... Figure 1 and Figure 2 As shown, the unwinding mechanism 2, from upstream to downstream, includes an unwinding roller assembly 21, a first transition roller assembly 22, a second transition roller assembly 23, and a limiting component 24. The unwinding roller assembly 21, the first transition roller assembly 22, and the second transition roller assembly 23 are each provided with multiple annular grooves for separating multiple strips of adhesive tape. The height of the first transition roller assembly 22 is lower than the height of the unwinding roller assembly 21 and the second transition roller assembly 23 to tension the adhesive tape. Figure 4As shown, the limiting assembly 24 includes an upper limiting plate 241, a lower limiting plate 242, and a bracket 243. The upper limiting plate 241 is positioned above the lower limiting plate 242. The bracket 243 is located on both sides of the lower limiting plate 242, and is fixedly connected to the lower limiting plate 242 and the second transition wheel assembly 23. The lower limiting plate 242 has multiple parallel limiting slots, which are equidistantly arranged. The upper limiting plate 241 has multiple limiting blocks corresponding to the limiting slots. The thickness of the limiting blocks is less than the depth of the limiting slots. The limiting blocks are inserted into the limiting slots, causing a gap to be formed between the limiting blocks and the limiting slots for the tape to pass through. The tape extends into the limiting slot from one side and extends out from the other side, and is located between the bottom of the limiting slot and the limiting block. Each piece of tape corresponds to one gap. By restricting the corresponding limiting slots and limiting blocks, the position of the tape is fixed to facilitate the simultaneous acquisition of multiple tapes by the polygonal cylindrical structure. The restriction of the tape position also prevents adjacent tapes from tangling and affecting production progress. The second transition roller group 23 is fixed to the side of the limiting assembly 24 near the unwinding roller group 21. The tape is led out from the side of the unwinding roller group 21 away from the limiting assembly 24, and sequentially pulled by the first transition roller group 22 and the second transition roller group 23 to the limiting assembly 24. Finally, it reaches the adsorption plate 4 of the polygonal cylindrical structure through the limiting slots and limiting blocks in the limiting assembly 24. To prevent the adhesive surface of the tape from sticking to the first transition roller group 22 and the limiting blocks, the surfaces of the first transition roller group 22 and the limiting blocks that contact the tape can be treated with anti-adhesion coating.

[0056] The negative pressure supply device 3 is located downstream of the unwinding mechanism 2, such as... Figures 5-10As shown, the negative pressure supply device 3 includes a rotating column 31, a rotating shaft 32, a venting slip ring 33, a rotating shaft sleeve 34, two synchronous pulleys 35, a synchronous belt 36, a rotating drive 37, a vacuum channel, and a bearing 310. The vacuum channel includes a first venting channel 38 and a second venting channel 39. The rotating shaft sleeve 34 is an annular cylindrical structure with multiple first venting holes on its annular wall. These first venting holes are located on the same plane, which is perpendicular to the axis of the rotating shaft sleeve 34. The first venting holes are circular. An air pipe connector 8 is fixed to the outer surface of the rotating shaft sleeve 34 and communicates with the first venting holes and the vacuum adsorber. The bearing 310 is sleeved on the rotating shaft 32, with its inner ring fixedly connected to the rotating shaft 32 and its outer ring fixedly connected to the rotating shaft sleeve 34. The outer wall of the rotating shaft 32 is provided with multiple second vent holes, and one end of the rotating shaft 32 is provided with multiple third vent holes. Multiple first vent channels 38 are arranged inside the rotating shaft 32, and each first vent channel 38 connects to one second vent hole and one third vent hole. Both the second and third vent holes are circular. The venting slip ring 33 is a ring-shaped cylindrical structure. The venting slip ring 33 is fitted onto the rotating shaft 32 and is fixedly connected to the rotating shaft 32. The rotating shaft sleeve 34 is fitted onto the venting slip ring 33 and surrounds the venting slip ring 33. The venting slip ring 33 is slidably connected to the rotating shaft sleeve 34. When the rotating shaft 32 rotates, the venting slip ring 33 rotates with the rotating shaft 32, while the rotating shaft sleeve 34 does not rotate. The venting slip ring 33 slides on the inner wall of the rotating shaft sleeve 34. The rotation direction of the rotating shaft 32 is the same as the feeding direction of the conveyor belt. The venting slip ring 33 has multiple vents on its ring wall, which penetrate the ring wall. Each vent corresponds to a second vent hole, with the vent located on top of the second vent hole. The distance between two adjacent vents is less than the diameter of the first vent hole. The vent is elliptical or near-elliptical. A near-elliptical vent is a combination of a rectangle and two semicircles at each end, with the width of the rectangle equal to the diameter of the two semicircles. When the vent is elliptical, its major axis is greater than or equal to the distance between two adjacent first vent holes, and its minor axis is greater than or equal to the diameter of the second vent hole. When the vent is near-elliptical, the sum of the length of the rectangle and the diameter of the semicircles is greater than or equal to the distance between two adjacent first vent holes, and the width of the rectangle is greater than or equal to the diameter of the second vent hole. The second vent is located in the middle of the vent. This arrangement effectively increases the size of the second vent, ensuring that each first vent connects to at least one second vent when the rotating shaft 32 rotates, thus guaranteeing the continuity of the airflow during rotation. One end of the rotating shaft 32 is fixedly connected to one end of the rotating column 31. The rotating column 31 is a cylindrical structure with its axis parallel to the horizontal and perpendicular to the feeding direction of the conveyor belt. Driven by the rotating shaft 32, the rotating column 31 rotates around its axis. Multiple second vent channels 39 are arranged inside the rotating column 31, each corresponding one-to-one with a first vent channel 38; the third vent connects to a second vent channel 39.In a preferred embodiment, the first ventilation channel 38 is L-shaped, and the second ventilation channel 39 is mirror-symmetrical to the first ventilation channel 38.

[0057] like Figures 5-9 , Figures 11-14 As shown, multiple adsorption plates 4 are disposed on the outer surface of the rotating column 31, arranged circumferentially along the rotating column 31. The axes of the adsorption plates 4 and the rotating column 31 are parallel, and the multiple adsorption plates 4 form a polygonal columnar structure. The adsorption plates 4 rotate with the rotating column 31. Preferably, there are six adsorption plates 4. The adsorption plates 4 are slidably connected to the rotating column 31, and the sliding direction is perpendicular to the axis of the rotating column 31. Figure 13 As shown, the cross-section of the adsorption plate 4 is trapezoidal, with the longer base located on the outer side of the polygon. The trapezoidal cross-section of the adsorption plate 4 allows it to adsorb a longer length of adhesive tape. The adsorption plate 4 includes multiple rows of adsorption holes 41, multiple raised strips 42, multiple strip-shaped grooves 43, a main channel 44, multiple secondary channels 45, and multiple branch channels 46. The adsorption holes 41 can adsorb adhesive tape. Figure 13 As shown, multiple raised strips 42 are arranged in parallel, with the length direction of the raised strips 42 parallel to the feeding direction of the adhesive tape. Each strip-shaped groove 43 is disposed on a raised strip 42, parallel to the raised strip 42 and located in the middle of the raised strip 42. Adsorption holes 41 are disposed in the strip-shaped grooves 43, with a row of adsorption holes 41 in each strip-shaped groove 43, and each row of adsorption holes 41 adsorbs one piece of adhesive tape. The width of the raised strip 42 is greater than or equal to the width of the adhesive tape. The function of the strip-shaped grooves 43 is that when the adsorption plate 4 presses the battery cell to adhere the adhesive tape, the solder ribbon on the battery cell can be accommodated in the strip-shaped grooves 43, preventing the battery cell from being crushed due to the protrusion of the solder ribbon. At the same time, it can also increase the contact surface between the solder ribbon and the adhesive tape during pressing, firmly adhering the solder ribbon to the battery cell. The adsorption holes 41 are connected to the second ventilation channel 39 through the branch channel 46, the secondary trunk channel 45, and the main trunk channel 44. Figure 12 and Figure 14 As shown, the main channel 44 is parallel to the axis of the rotating column 31. The main channel 44 is connected to the second ventilation channel 39 in the rotating column 31 through the air guide column. Multiple secondary channels 45 are perpendicularly connected to the main channel 44. The adsorption hole 41 is connected to the secondary channels 45 through the branch channel 46. The branch channel 46 is parallel to the secondary channels 45 and is located between the adsorption hole 41 and the secondary channels 45, connecting the adsorption hole 41 and the secondary channels 45. The main channel 44, secondary channels 45, and branch channels 46 form a complete negative pressure suction channel in the adsorption plate 4. The main channel 44 is parallel to the axis of the rotating column 31, and the branch channels 46 and secondary channels 45 are parallel to the raised strip 42.

[0058] The adsorption plate 4 is slidably connected to the outer surface of the rotating column 31 via a sliding member 9. The sliding member 9 allows the adsorption plate 4 to move closer to or further away from the rotating column 31. Figure 7, Figure 9 and Figure 10 As shown, the sliding member 9 includes a linear bearing 91 and a sliding shaft 92. The linear bearing 91 is fixed on the rotating column 31 and has a through hole. One end of the sliding shaft 92 is fixedly connected to the adsorption plate 4, and the other end is inserted into the through hole and extends into the rotating column 31. The central axis of the through hole is perpendicular to the axis of the rotating column 31.

[0059] like Figure 5 and Figure 8 As shown, there is a gap between every two adsorption plates 4. The cutting mechanism 5 is located on one side of the negative pressure supply device 3, preferably on the opposite side of the unwinding mechanism 2. The cutting mechanism 5 is fixedly connected to the guide plate 6 via a guide plate mounting bracket, and the guide plate 6 is fixedly connected to the rotating shaft sleeve 34. When the gap between the adsorption plates 4 rotates to the cutting area, the cutting blade of the cutting mechanism 5 moves into the gap to cut the tape. Specifically, the cutting mechanism 5 includes a cutting blade, two sets of slide rails, and a pusher. The moving end of the pusher is connected to the middle position of the cutting blade, and the two ends of the cutting blade are fixed on the two sets of slide rails respectively to increase the stability of the cutting blade movement. The pusher pushes the cutting blade to move into the gap between two adjacent adsorption plates 4 and cuts the tape, thereby cutting the tape on the two adjacent adsorption plates 4 into two segments. After cutting, the pusher retracts the cutting blade, and the rotating shaft 32 continues to rotate, rotating the next gap to the cutting area. The cutting area is located at the cutting mechanism 5.

[0060] Because the two adsorption plates 4 are close together, there is a risk that the tape on the two adjacent adsorption plates 4 will stick together after cutting. Therefore, a guiding mechanism is set up to separate the two adjacent adsorption plates 4. Figure 1 and Figure 2 , Figures 5-8 , Figure 15 As shown, the guiding mechanism includes a guide plate 6 and a guide member 7, used to guide the adsorption plates 4 to slide on the rotating column 31 so that adjacent adsorption plates 4 move away from each other and thus separate the tape. The guide plate 6 is disposed at one or both ends of the adsorption plates 4 along the axis of the rotating column 31; preferably, there are two guide plates 6, respectively disposed at both ends. The guide plate 6 is perpendicular to the axis of the rotating column 31 and is fixedly connected to the mounting base 12. The guide plate 6 has an annular guide groove 61, the center of which is on the axis of the rotating column 31. The guide grooves 61 of the two guide plates 6 are arranged facing each other. Preferably, the guide groove 61 has a near-annular structure. Figure 16As shown, the guide groove 61 is an annular structure surrounding the rotating column 31. The lower part of this annular structure protrudes downwards, allowing the adsorption plate 4 located below to move downwards to adhere the adhesive tape. The guide groove 61 is formed by combining two segments, a superior arc groove 611 and a inferior arc groove 613, whose centers do not coincide and whose radii are unequal. The radius of the inferior arc groove 612 is smaller than that of the superior arc groove 611. The superior arc groove 611 is located above the inferior arc groove 612, and the lowermost end of the inferior arc groove 612 is located at the lowermost end of the guide groove 61. The center of the superior arc groove 611 lies on the axis of the rotating column 31. The straight line formed by connecting the centers of the superior arc groove 611 and the inferior arc groove 612 is perpendicular to the axis of the rotating column 31.

[0061] like Figures 6-9 As shown, guide members 7 are disposed at one or both ends of the adsorption plate 4 along the axis of the rotating column 31, preferably at both ends. Each adsorption plate 4 corresponds to two guide members 7. The guide members 7 are fixedly connected to the adsorption plate 4 and extend into the guide groove 61. The guide member 7 has a bearing structure, with its inner ring fixedly connected to the adsorption plate 4 and its outer ring slidably connected to the guide groove 61. Driven by the rotating shaft 32, the guide member 7 slides within the guide groove 61.

[0062] The device in this scheme adjusts the height of the rotating tape-applying mechanism through the lifting mechanism 1. When tape needs to be applied, the lifting mechanism 1 moves downward to achieve the application of tape on the bottom adsorption plate 4 to the battery cells and welding ribbon below. The tape is fed by the unwinding mechanism 2 and adsorbed onto the adsorption plate 4. As the rotating shaft 32 and rotating column 31 rotate, the adsorption plate 4 rotates with the tape. When the gap between the adsorption plates 4 rotates to the cutting area, the cutting mechanism 5 cuts the tape. The rotating shaft 32 and rotating column 31 continue to rotate, and the adsorption plate 4 rotates to the bottom. Since the guide member 61 passes through the inferior arc groove 612 of the guide groove 61, the adsorption plate 4 moves downward along the path of the inferior arc groove 612 under the sliding shaft 92. It moves until the adsorption plate 4 is parallel to the horizontal direction. During the movement, due to the guidance of the guide groove 61, the adsorption plate 4 moves away from its upstream adjacent adsorption plate 4 to prevent the tape from being applied between the two adsorption plates 4. The battery cells and welding ribbon are located below the adsorption plate 4. The adsorption plate 4 moves downward under the drive of the lifting mechanism 1 to directly apply the tape. After the tape is pasted, the guide groove 61 returns to its normal operating position via the arc groove 611. Multiple adsorption plates 4 operate in a cycle, continuously receiving and adsorbing the tape, and pasting the cut tape onto the battery cells and solder ribbons. This device is integrally molded, occupies little space, does not require horizontal movement, has high bonding accuracy, and does not affect the processing of other tapes during pasting. At the same time, it ensures that the air path remains uninterrupted to maintain the adsorption of the tape while rotating it.

[0063] As a second embodiment of the present invention, a bonding device for battery cells and solder ribbons is provided, which adopts the rotary adhesive tape bonding mechanism of the first embodiment, and includes in sequence: a battery cell placement device, a solder ribbon placement device and the rotary adhesive tape bonding mechanism.

[0064] The cell placement device is used to place the cells, the ribbon placement device is used to place the ribbon on top of the cells, and the rotating tape applicator is used to apply tape so that the cells and the ribbon are bonded together.

[0065] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotating tape-applying mechanism, characterized in that, Includes: a negative pressure supply device, multiple adsorption plates, and a guiding mechanism; The negative pressure supply device includes a rotating column and a vacuum channel. The rotating column is a cylindrical structure with its axis parallel to the horizontal direction; the rotating column rotates along its axis. Multiple adsorption plates are arranged circumferentially along the rotating column and rotate with the rotating column. The adsorption plates are slidably connected to the rotating column, and the sliding direction is perpendicular to the axis of the rotating column. The adsorption plates are provided with adsorption holes for adsorbing adhesive tape. The vacuum channel is connected to the adsorption holes. The guiding mechanism is used to guide the adsorption plates to slide on the rotating column so that adjacent adsorption plates move away from each other; The negative pressure supply device also includes a rotating shaft, a venting slip ring, and a rotating shaft sleeve; the vacuum channel includes a first venting channel and a second venting channel. The rotating shaft bushing has an annular cylindrical structure, and its annular wall is provided with multiple first vent holes; The outer wall of the rotating shaft is provided with multiple second vent holes, one end of the rotating shaft is provided with multiple third vent holes, and the rotating shaft is provided with multiple first vent channels, each of which connects to a second vent hole and a third vent hole. A venting slip ring is fitted onto a rotating shaft and is fixedly connected to the rotating shaft; a rotating shaft sleeve is fitted onto the venting slip ring, and the venting slip ring is slidably connected to the rotating shaft sleeve; the venting slip ring has multiple vents on its ring wall, and the vents and second vents correspond one-to-one. The vents are located on the second vents, and the distance between two adjacent vents is less than the diameter of the first vent. One end of the rotating shaft is fixedly connected to one end of the rotating column; the rotating column is provided with multiple second ventilation channels, each corresponding to a first ventilation channel; the third ventilation hole is connected to the second ventilation channel of the rotating column.

2. The rotary tape applicator according to claim 1, characterized in that, Multiple adsorption plates are used to pull out the tape set as it rotates with the rotating column. After the tape is cut, one adsorption plate corresponds to one section of tape set. The adsorption plates supply tape sets to the welding ribbon set covering the surface of the battery cell for bonding.

3. The rotary tape applicator according to claim 1, characterized in that, The guiding mechanism includes a guide plate and a guide member. There are one or two guide plates, which are set at one or both ends of the adsorption plate along the axis of the rotating column. Each adsorption plate is fixed with a guide member at one or both ends along the axis of the rotating column. A guide groove is provided on the guide plate, and the guide member slides in the guide groove.

4. The rotary tape applicator according to claim 3, characterized in that, The guide component is a bearing structure, with its inner ring fixedly connected to the adsorption plate and its outer ring slidably connected to the guide groove.

5. The rotary tape applicator according to claim 3, characterized in that, The guide groove is an annular structure surrounding the rotating column, with the lower part of the annular structure protruding downwards, so that the adsorption plate moving towards the bottom of the rotating adhesive tape mechanism is away from its upstream adjacent adsorption plate.

6. The rotary tape applicator according to claim 5, characterized in that, The guide groove has a near-circular ring structure; the guide groove is formed by combining two segments of superior arc groove and inferior arc groove with non-coincident centers and unequal radii, the radius of the inferior arc groove being smaller than the radius of the superior arc groove; The superior arc groove is located above the inferior arc groove.

7. The rotary tape applicator according to claim 6, characterized in that, The lowest end of the inferior arc groove is located at the lowest end of the guide groove.

8. The rotary tape applicator according to claim 1, characterized in that, It also includes a sliding component, which includes a linear bearing and a sliding shaft. The linear bearing is fixed on the rotating column and has a through hole. One end of the sliding shaft is fixedly connected to the adsorption plate, and the other end is inserted into the through hole. The central axis of the through hole is perpendicular to the axis of the rotating column.

9. The rotary tape applicator according to claim 1, characterized in that, Multiple first vent holes are located on the same plane, which is perpendicular to the axis of the rotating shaft sleeve.

10. The rotary tape applicator according to claim 1, characterized in that, It also includes a cutting mechanism; there is a gap between every two adsorption plates, and the cutting mechanism is fixed on one side of the rotating column. When the gap between the adsorption plates rotates to the cutting area, the cutting mechanism moves into the gap to cut the tape.

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