Tape application device and application method

Abstract

This invention relates to the field of photovoltaic cell manufacturing technology, specifically disclosing a tape pasting device and method. In this tape pasting device, a feed rod is mounted on a frame; a detachable and rotatable tray is mounted on the feed rod for mounting rolls of tape; a support member has a first position and a second position, the support member in the first position supporting the tray, and the support member in the second position having a gap with the tray; a pressure roller assembly is mounted on the frame, used to push against strips of tape peeled from the roll and with their ends adhered to the workpiece, ensuring contact between the strips and the workpiece or a preset distance between them; a cutting assembly is mounted on the frame for cutting the strips of tape to form individual sheet tapes. This configuration achieves automatic release of the strip tape and allows for cutting after adhesion to the workpiece, resulting in high pasting accuracy, eliminating wrinkles and bubbles, and reducing labor intensity.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic cell manufacturing technology, and in particular to an adhesive tape application device and application method. Background Technology

[0002] In the production of solar panels, multiple solar cells need to be connected together to form a battery string. The conventional method is to use a laser to weld solder ribbon (which can be understood as very fine solder wire, about 0.2mm in diameter) onto the grid lines of the solar cells, so that adjacent solar cells can be connected to form a battery string with a certain specification. However, conventional laser welding requires high precision. Even a slight deviation in the welding position can lead to weak welding, damage to the solar cell, or even scrapping it, resulting in high costs. Therefore, a method has emerged that uses tape to attach the solder ribbon to the solar cells. Specifically, the solder ribbon on the front of one solar cell is attached to the back of another adjacent solar cell. For each solar cell, tape needs to be applied to both sides. Existing bonding processes are mostly done manually, resulting in poor bonding precision, wrinkles and air bubbles, and high labor intensity.

[0003] Therefore, it is urgent to study an adhesive tape application device and method to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a tape pasting device and method to solve the problems of poor tape pasting accuracy, easy wrinkles and bubbles, and high labor intensity in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, the present invention provides a tape application device, the tape application device comprising:

[0007] frame,

[0008] The feed bar is mounted on the frame;

[0009] A tray, detachably and rotatably mounted on the material rod, is used to mount rolls of adhesive tape.

[0010] A support member has a first position and a second position, wherein the support member located at the first position can support the material tray, and the support member located at the second position has a gap with the material tray;

[0011] A pressure roller assembly is provided on the frame. The pressure roller assembly is used to push against the strip tape peeled off from the roll tape and with its end attached to the workpiece, and to make the strip tape and the workpiece contact each other or to make the strip tape and the workpiece have a preset distance between them.

[0012] A cutting assembly, located on the frame, is used to cut the strip tape to form individual sheet tapes.

[0013] In some embodiments, the support member is slidably disposed on the frame along the Z direction, and the support member located at the first position is higher than the support member located at the second position; and / or

[0014] The material tray is provided with at least two, and the support member located at the first position can support at least two material trays at the same time.

[0015] In some embodiments, the pressure roller assembly includes a pressure roller bracket, a pressure roller body, and a guide member. One end of the pressure roller bracket is hinged to the frame. The pressure roller body is rotatably disposed on the pressure roller bracket. One end of the guide member is rotatably disposed on the pressure roller bracket, and the other end is attached to the pressure roller body. The strip adhesive tape is restricted between the pressure roller body and the guide member.

[0016] In some embodiments, the cutting assembly includes a cutting drive and a cutting blade, the cutting drive being disposed on the frame, the cutting blade being connected to the output end of the cutting drive, and the cutting blade being located behind the pressure roller body in the forward direction; and / or

[0017] The pressure roller assembly further includes a first elastic element. One end of the guide element is rotatably disposed on the pressure roller bracket. The first elastic element is disposed between the guide element and the pressure roller bracket, and is used to make the other end of the guide element abut against the pressure roller body.

[0018] In some embodiments, the tape application device further includes a pressure roller assembly, which includes a pressure roller drive, a pressure roller bracket, and a pressure roller body. The pressure roller drive is disposed on the frame, and the pressure roller bracket is slidably disposed on the frame along the Z direction and is kinetically connected to the output end of the pressure roller drive. The pressure roller body is connected to the pressure roller bracket, and the pressure roller drive is used to drive the pressure roller bracket to move between a pressing position and an lifting position. When the pressure roller bracket is in the pressing position, the pressure roller body can press the strip tape against the workpiece.

[0019] In some embodiments, the tray includes an inner tray and two outer trays, the outer diameter of the inner tray is smaller than the outer diameter of the outer trays, the inner tray is sandwiched between the two outer trays, and the roll of adhesive tape is sleeved on the outer periphery of the inner tray, the maximum outer diameter of the roll of adhesive tape is smaller than the outer diameter of the outer trays.

[0020] In some embodiments, the inner disc has a weight-reducing groove, and the outer surface of the inner disc also has a connecting groove, with a clamping member passing through the connecting groove and one end abutting against the inner ring of the roll of adhesive tape; and / or

[0021] The inner disc has a through hole, and the feed rod passes through the through hole.

[0022] In some embodiments, there are a plurality of material trays, each of which is rotatably mounted on the material rod. Each end of the material rod is provided with a limiting component, and the plurality of material trays are limited by two of the limiting components.

[0023] In some embodiments, the tape application device includes a base, a first movable component, and a second movable component. The first movable component is disposed on the base, the second movable component is disposed at the output end of the first movable component, and the frame is disposed at the output end of the second movable component. The first movable component is used to drive the second movable component to move in the X direction, and the second movable component is used to drive the frame to move in the Z direction, wherein the Z direction is perpendicular to the X direction.

[0024] On the other hand, the present invention provides a tape application method applicable to the tape application device in any of the above-mentioned solutions, the tape application method comprising the following steps:

[0025] Pull out the front ends of multiple rolls of adhesive tape to form strips of adhesive tape, and then stick the strips of adhesive tape onto the corresponding solder strips on the battery cell;

[0026] Multiple rolls of tape are moved along the X-axis, so that the pulled-out strips of tape extend above the battery cell along the direction and position of the solder strip.

[0027] The pressure roller assembly rolls the strip of adhesive tape extended on the battery cell so that the strip of adhesive tape adheres the corresponding welding strip to the battery cell;

[0028] After a battery cell is pasted, the pressure roller assembly moves the end of the strip tape upward, so that there is a preset distance between the strip tape and the battery cell;

[0029] The cutting component is used to cut the strip of adhesive tape above the finished adhesive portion of the battery cell.

[0030] The beneficial effects of this invention are as follows:

[0031] This invention provides a tape application device and method. The tape application device includes a tray carrying a roll of tape, which is rotatably mounted on a feed rod. When the frame moves relative to the workpiece, the tape strip, with its end adhered to the workpiece, is freely peeled off the roll, achieving automatic release of the tape. Furthermore, a pressure roller assembly pushes the tape, ensuring contact between the tape and the workpiece or maintaining a preset distance between them. When in contact, the tape adheres better to the workpiece. When at the preset distance, a cutting component allows for tape cutting without damaging the workpiece. After the tape is applied, it can be cut before proceeding to the next process. Compared to manual application, this method offers higher precision, eliminates wrinkles and bubbles, and reduces labor intensity. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the tape application device from a first-view perspective in an embodiment of the present invention;

[0033] Figure 2 This is a structural schematic diagram of the tape application device from a second perspective in an embodiment of the present invention;

[0034] Figure 3 This is a structural schematic diagram of the tape application device from a third-view perspective in an embodiment of the present invention;

[0035] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0036] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0037] Figure 6 This is a cross-sectional view of the support member in an embodiment of the present invention;

[0038] Figure 7 for Figure 2 Enlarged view of point C in the middle;

[0039] Figure 8 for Figure 3 Enlarged view at point D;

[0040] Figure 9 This is a structural schematic diagram of the guide component from a first perspective in an embodiment of the present invention;

[0041] Figure 10 This is a structural schematic diagram of the guide component from a second perspective in an embodiment of the present invention;

[0042] Figure 11 This is an exploded view of the material tray in an embodiment of the present invention;

[0043] Figure 12 This is a partial cross-sectional schematic diagram of the pressure roller assembly in an embodiment of the present invention.

[0044] In the picture:

[0045] 1000, strip tape;

[0046] 100. Frame; 110. Mounting base; 111. First limiting hole; 112. Second limiting hole; 120. Base; 130. First moving component; 140. Second moving component;

[0047] 210. Material rod;

[0048] 220. Material tray; 221. Inner tray; 2211. Weight reduction groove; 2222. Through hole; 222. Outer tray; 223. Limiting sleeve; 224. Limiting screw;

[0049] 230. Support component; 231. Bearing component; 2311. Bearing groove; 232. Connecting component;

[0050] 300, Pressure roller assembly; 310, Pressure roller bracket; 320, Pressure roller body; 330, Guide component; 331, Guide plate; 332, Hinge plate; 3321, Hinge hole; 333, Limiting plate; 3331, Arc-shaped surface; 340, Pressure roller drive component; 350, First elastic component;

[0051] 400. Cutting assembly; 410. Cutting drive unit; 420. Cutting blade; 430. Heat insulation board; 440. Conductive board; 450. Cutting bracket;

[0052] 500, Pressure roller assembly; 510, Pressure roller drive component; 520, Pressure roller bracket; 530, Pressure roller body; 540, Pressure roller moving component; 550, Second elastic component. Detailed Implementation

[0053] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0056] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0057] Example 1

[0058] like Figures 1-12As shown, this embodiment provides a tape application device, which includes a frame 100, a feed rod 210, a feed tray 220, a support member 230, a pressure roller assembly 300, and a cutting assembly 400. The feed rod 210 is mounted on the frame 100; the feed tray 220 is detachably and rotatably mounted on the feed rod 210 and is used to hold rolls of tape; the support member 230 has a first position and a second position. The support member 230 in the first position can support all the feed trays 220, while the support member 230 in the second position... There is a gap between the support member 230 and the material tray 220; the pressure roller assembly 300 is provided on the frame 100, and the pressure roller assembly 300 is used to push the strip tape 1000 peeled from the roll tape and with its end attached to the workpiece, thereby limiting the position of the strip tape 1000 so that the strip tape 1000 contacts the workpiece or there is a preset distance between the strip tape 1000 and the workpiece; the cutting assembly 400 is provided on the frame 100 and is used to cut the strip tape 1000 to form individual sheet tapes.

[0059] The tape application device includes a spool 220 for carrying roll tape, which is rotatably mounted on a feed bar 210. When the frame 100 moves relative to the workpiece, the strip tape 1000, with its end adhered to the workpiece, is freely peeled off from the roll tape, achieving automatic release of the strip tape 1000. Additionally, the pressure roller assembly 300 pushes the strip tape 1000 against the workpiece, causing the strip tape 1000 to contact the workpiece or... There is a preset distance between the strip tape 1000 and the workpiece. When the strip tape 1000 contacts the workpiece, it adheres better to the workpiece. With this preset distance, the cutting component 400 can cut the strip tape 1000 into individual sheet tapes without damaging the workpiece. After the strip tape 1000 is applied to the workpiece, it can be cut before proceeding to the next process. Compared to manual application, this method offers higher precision, eliminates wrinkles and bubbles, and reduces labor intensity.

[0060] In this embodiment, the workpiece can be a battery cell, and the solder ribbon is bonded to the battery cell using strip tape 1000. In other embodiments, the workpiece can also be a product that needs to be bonded using strip tape 1000, and is not limited thereto.

[0061] In some embodiments, the support member 230 is slidably disposed on the frame 100 along the Z direction, and the support member 230 in the first position is higher than the support member 230 in the second position. In other embodiments, the support member 230 may also be rotatably disposed on the frame 100, as long as the support end of the support member 230 can change position in the Z direction.

[0062] For ease of understanding, this embodiment will be described using the example of a support member 230 slidably disposed on a frame 100. Exemplarily, the frame 100 is provided with a mounting base 110, which has a sliding channel. The support member 230 includes a bearing member 231 and connectors 232 disposed at both ends of the bearing member 231. The connectors 232 are slidably disposed within the sliding channel. Two mounting bases 110 are provided, spaced apart on the frame 100. One connector 232 is slidably disposed within the sliding channel of one mounting base 110, and the other connector 232 is slidably disposed within the sliding channel of the other mounting base 110.

[0063] To ensure that the support member 230 can be in a stable state in the first position, thereby improving the stability of the pusher plate 220, in this embodiment, the tape pasting device also includes a locking member, which can at least lock the support member 230 in the first position.

[0064] Regarding the structure of the locking component, in this embodiment, specifically, the mounting base 110 is provided with a first limiting hole 111, which communicates with the sliding channel. The locking component can pass through the first limiting hole 111 and connect with the connecting member 232. Further, the locking component includes a locking pin, and the connecting member 232 is provided with a connecting hole. In the first position, the connecting hole and the first limiting hole 111 are directly opposite and communicate with each other. The locking pin can pass through the first limiting hole 111 and then into the connecting hole.

[0065] The first limiting hole 111 can be an inclined hole, with its axis inclined downwards towards the sliding channel. In other words, the axis of the first limiting hole 111 is away from the support member 231 towards the sliding channel. In this embodiment, the locking pin can utilize its own weight and the engagement with the first limiting hole 111 to ensure a more secure fit and prevent it from falling off automatically. Alternatively, the locking pin can be configured with a stepped structure, with the larger diameter portion located outside the first limiting hole 111, and the smaller diameter portion passing through the first limiting hole 111 and into the connecting hole. The stepped portion abuts against the mounting base 110, meaning the end of the larger diameter portion abuts against the mounting base 110.

[0066] In some embodiments, the mounting base 110 may also be provided with a second limiting hole 112, which is located below the first limiting hole 111. When the support member 230 is in the second position, the connecting hole and the second limiting hole 112 are directly opposite and connected. The locking pin can pass through the second limiting hole 112 and then into the connecting hole. This arrangement allows the support member 230 to be stably positioned in the second position without any positional changes due to external factors, thereby affecting the material tray 220 and improving the stability of the material feeding from the material tray 220.

[0067] In some embodiments, the mounting base 110 may also be provided with a third limiting hole, which is located above the first limiting hole 111. When the support member 230 is in the third position, the connecting hole and the third limiting hole are directly opposite and connected, and the locking pin can pass through the third limiting hole and then into the connecting hole. This arrangement allows the support member 230 to be stably positioned in the third position, preventing positional changes due to external factors, thereby affecting the material tray 220 and improving the stability of material feeding from the material tray 220. The support member 230 in the third position is higher than the support member 230 in the first position. This arrangement allows the support member 230 to support material trays 220 of different diameters. For example, when the diameter of the material tray 220 is D1, the support member 230 in the first support position can support the material tray 220; when the diameter of the material tray 220 is D2, the support member 230 in the third support position can support the material tray 220, where D1 is greater than D2.

[0068] Since there are more than twenty solder ribbons on a single solar cell, more than twenty strips of adhesive tape (1000 strips) need to be applied. However, the length of each roll of tape has an error, and the thickness of different solar cells also has a certain tolerance. As a result, the time it takes for each roll of tape to run out is different. Therefore, the rolls of tape need to be replaced individually. Since more than twenty rolls of tape are uniformly installed on the frame 100 via the material rod 210, all the material trays 220 need to be disassembled each time, so the workload is very large.

[0069] Regarding the shape of the support member 231, in this embodiment, the support member 231 has a plate-like structure and is provided with a support groove 2311. The projection of the support groove 2311 onto the axis of the material rod 210 is a downwardly concave arc shape, and the radius of the support groove 2311 is adapted to the radius of the material tray 220, so that when the support member 230 is in the first position, the material tray 220 is supported in the support groove 2311. Specifically, the radius of the support groove 2311 is R1, the radius of the material tray 220 is R2, and R1 is greater than or equal to 1.1R2 and less than or equal to 1.3R2. Several material trays 220 are rotatably provided on the material rod 210, and the number of support grooves 2311 is several, and they are arranged one-to-one with the material trays 220. When the support member 230 is in the first position, several material trays 220 are respectively supported in several support grooves 2311. The bottom of the support groove 2311 abuts against the periphery of the tray 220, and the two walls of the support groove 2311 respectively limit the two ends of the tray 220. The width of the support groove 2311 is adapted to the width of the tray 220. Specifically, the width of the support groove 2311 is W1, and the width of the tray 220 is W2, where W1 is greater than or equal to 1.1W2 and less than or equal to 1.3W2. This arrangement allows for replacement of the trays 220 without disassembling all of them. Simply move the support member 230 to the first position so that all trays 220 are supported, and then pull out the feed rod 210, making all trays 220 independent. Any tray 220 that needs to be replaced can be replaced. After replacement, the feed rod 210 is inserted through the through holes 2222 of all trays 220, and then the support member 230 is moved to the second position, creating a gap between the support member 230 and all trays 220. This improves the convenience and efficiency of changing the 220 material tray.

[0070] In some embodiments, the number of trays 220 is 15. In some embodiments, the number of trays 220 is 20. In some embodiments, the number of trays 220 is 30. In other embodiments, the number of trays 220 can be determined based on the specific amount of solder ribbon.

[0071] The connector 232 has a plate-like structure, and the sliding channel that mates with the connector 232 has a quadrilateral cross-section. This design restricts the degree of freedom of the connector 232, allowing it to slide only in the Z direction. The connection between the carrier 231 and the connector 232 is a screw connection. There are two connectors 232: one is located at one end of the carrier 231 and on its underside, and the other is located at the other end of the carrier 231 and on its underside. A screw passes through the connecting hole on the carrier 231 and is then screwed into the threaded hole of the connector 232.

[0072] Regarding the structure of the pressure roller assembly 300, in this embodiment, the pressure roller assembly 300 includes a pressure roller bracket 310, a pressure roller body 320, and a guide member 330. One end of the pressure roller bracket 310 is hinged to the frame 100; the pressure roller body 320 is rotatably mounted on the pressure roller bracket 310; one end of the guide member 330 is rotatably mounted on the pressure roller bracket 310, and the other end is attached to the pressure roller body 320; a strip of adhesive tape 1000 is confined between the pressure roller body 320 and the guide member 330. With the above arrangement, the pressure roller body 320 can rotate around the hinge point between the pressure roller bracket 310 and the frame 100, thereby allowing the pressure roller body 320 to approach or move away from the battery cell. When approaching the battery cell, the strip of adhesive tape 1000 can be attached to the battery cell, thus achieving adhesion of the strip of adhesive tape 1000 to the battery cell.

[0073] In some embodiments, the pressure roller assembly 300 further includes a pressure roller drive 340, which is disposed on the frame 100. The output end of the pressure drive is operatively connected to the drive portion of the pressure roller bracket 310, for driving the pressure roller bracket 310 to rotate about the hinge. Two pressure roller brackets 310 are provided, with one end of the pressure roller body 320 rotatably connected to one pressure roller bracket 310 and the other end rotatably connected to the other pressure roller bracket 310. Two pressure roller drive components 340 are provided, with the output end of one pressure roller drive 340 operatively connected to the drive portion of one pressure roller bracket, and the output end of the other pressure roller drive 340 operatively connected to the drive portion of the other pressure roller bracket. The arrangement of two pressure roller drive components 340 ensures the accuracy of the movement of the pressure roller body 320 and avoids tilting, improving the flatness of the strip adhesive tape 1000 during application.

[0074] The pressure roller assembly 300 also includes a first elastic element 350. One end of the guide element 330 is rotatably mounted on the pressure roller bracket 310. The first elastic element 350 is located between the guide element 330 and the pressure roller bracket 310, and is used to make the other end of the guide element 330 abut against the pressure roller body 320. The first elastic element 350 ensures that the other end of the guide element 330 always abuts against the pressure roller body 320, thereby accommodating strip tapes 1000 of different thicknesses. It can clamp strip tapes 1000 of different thicknesses between the guide element 330 and the pressure roller body 320. When the frame 100 is relatively displaced relative to the battery cell, the pressure roller body 320 can roll on the battery cell through the strip tape 1000, thereby attaching the strip tape 1000 to the battery cell, thus completing the precise guidance and attachment of the strip tape 1000.

[0075] Because the strip tape 1000 is a flexible structure, the longer its free length, the more difficult it is to ensure its flatness when applied to the battery cell. Therefore, in this embodiment, regarding the structure of the guide member 330, the guide member 330 includes a hinge portion with a hinge hole 3321. The hinge shaft passes through the hinge hole 3321 and is connected to the pressure roller bracket 310. In this embodiment, the contact point between the other end of the guide member 330 and the pressure roller body 320 is located slightly forward of the contact point between the pressure roller body 320 and the battery cell. This arrangement minimizes the free length of the strip tape 1000 from the pressure roller body 320 to the battery cell, allowing the strip tape 1000 to be accurately applied to the battery cell. The first elastic member 350 includes a torsion spring, which is sleeved on the hinge shaft, with one end abutting against the pressure roller bracket 310 and the other end abutting against the guide member 330. The torsion spring helps reduce space occupation. The guide member 330 includes a guide plate 331, with two parallel hinge plates 332 at one end of the guide plate 331. Hinge holes 3321 are located in the hinge plates 332, and the hinge shaft passes through the hinge holes 3321 on the two hinge plates 332. This arrangement restricts the degree of freedom of the guide plate 331, allowing it to rotate only along the hinge shaft. In this embodiment, a torsion spring is located between the two hinge plates 332. This arrangement restricts the degree of freedom of the torsion spring, preventing it from moving along the axis of the hinge shaft. The two hinge plates 332, on the one hand, restrict the degree of freedom of the guide member 330; on the other hand, they provide space for the installation of the torsion spring, serving a dual purpose, with an ingenious structure and cost-effectiveness.

[0076] Two parallel limiting plates 333 are provided at the other end of the guide plate 331 along the width direction, forming a limiting channel between the two limiting plates 333. The strip tape 1000 passes through the limiting channel and is sandwiched between the guide plate 331 and the pressure roller body 320. The setting of the limiting plates 333 restricts the degree of freedom of the strip tape 1000, allowing the strip tape 1000 to move in the axial direction of the material tray 220. The axial direction of the hinge shaft is the same as the axial direction of the material tray 220, which is the width direction. The width direction is the Y direction.

[0077] In this embodiment, the limiting plate 333 is an inclined plate, and its height gradually decreases from the direction away from the hinge hole 3321 to the thickness of the strip tape 1000. This arrangement allows the guide plate 331, the two limiting plates 333, and the pressure roller body 320 to form a tape channel at the contact point between the guide member 330 and the pressure roller body 320, thereby achieving precise control over the position of the strip tape 1000.

[0078] The limiting plate 333 is an arc-shaped plate, so that the end of the limiting plate 333 away from the guide plate 331 is an arc-shaped surface 3331, and the arc-shaped surface 3331 can cover the outer periphery of the pressure roller body 320. This setting allows the tape channel to have a certain length, thereby enabling more precise guidance and constraint of the strip tape 1000.

[0079] The height direction of the limiting plate 333 is perpendicular to the axis of the pressure body.

[0080] Specifically, the contact point between the guide 330 and the pressure roller body 320 is defined as point E, and the contact point between the pressure roller body 320 and the battery cell via the strip adhesive tape 1000 is defined as point F. The thickness of the strip adhesive tape 1000 is G. Point E is located in front of point F, and the arc length between points E and F is H, where 0.5G < H < 2G. A larger H would result in an excessively long strip adhesive tape 1000 in its free state, leading to poor adhesion and flatness; a smaller H would easily cause interference between the guide plate 331 and the battery cell, potentially scratching the battery cell when the frame 100 and the battery cell move relative to each other. The arrow in the X direction points forward.

[0081] In this embodiment, the limiting plate 333 is disposed on the upper side of the guide plate 331, and the hinge plate 332 is disposed on the lower side of the guide plate 331.

[0082] Among them, there are several guide components 330, and several guide components 330 and several material trays 220 are set in a one-to-one correspondence.

[0083] To ensure that there is no adhesion between the guide component 330 and the strip tape 1000, the guide component 330 needs to be made of a special material, which is well known to those skilled in the art, so it will not be described in detail here.

[0084] In other embodiments, the guide member 330 can be slidably disposed on the pressure roller bracket 310 and press against the pressure roller body 320 by its own weight.

[0085] The cutting assembly 400 includes a cutting drive 410 and a cutting blade 420. The cutting drive 410 is mounted on the frame 100, and the cutting blade 420 is connected to the output end of the cutting drive 410 and is located on the rear side of the pressure roller body 320 in the forward direction. The cutting blade 420 and the guide 330 are located on both sides of the pressure roller body 320. Specifically, the cutting assembly 400 includes a cutting bracket 450, a heat insulation plate 430, and a conductive plate 440. The cutting bracket 450 is mounted on the output end of the cutting drive 410, one end of the heat insulation plate 430 is mounted on the cutting bracket 450, the other end of the conductive plate 440 is mounted on the heat insulation plate 430, and the cutting blade 420 is mounted on the conductive plate 440.

[0086] The cutting blade 420 is an electrically heated blade, and the conductive plate 440, preferably a copper plate, supplies power to the heated blade, causing it to heat up. The cutting drive 410 drives the heated blade downwards, thereby cutting the strip of tape 1000. Compared to mechanical cutting, the hot cutting method produces a smoother cut. The surface of the heated blade is electroplated with a nickel-chromium alloy to prevent corrosion. Compared to heating wire, the heated blade is less prone to deformation, which could affect subsequent processing. The heat insulation plate 430 is preferably synthetic stone, whose physical installation properties and heat insulation effect readily meet the usage requirements.

[0087] The tape application device also includes a pressure roller assembly 500, which includes a pressure roller drive 510, a pressure roller bracket 520, and a pressure roller body 530. The pressure roller drive 510 is mounted on the frame 100, and the pressure roller bracket 520 is slidably mounted on the frame 100 along the Z-direction and is drively connected to the output end of the pressure roller drive 510. The pressure roller body 530 is connected to the pressure roller bracket 520. The pressure roller drive 510 drives the pressure roller bracket 520 to move between a pressing position and an lifting position. When the pressure roller bracket 520 is in the pressing position, the pressure roller body 530 can press the strip tape 1000 onto the battery cell. With the above configuration, the strip tape 1000 mounted on the battery cell can be roller-pressed to make the adhesion between the strip tape 1000 and the battery cell more firm. In this embodiment, the pressure roller body 530 is located behind the cutter 420.

[0088] In some embodiments, the pressure roller assembly 500 further includes a pressure roller moving member 540 and a second elastic member 550. The pressure roller moving member 540 is slidably disposed on the pressure roller support 520 along the Z direction. The second elastic member 550 is disposed on the pressure roller moving member 540 and the pressure roller support 520, and is used to cause the pressure roller moving member 540 to move downward. The pressure roller body 530 is rotatably disposed on the pressure roller moving member 540. This arrangement solves the problem of overload on the strip tape 1000 caused by the pressure roller body 530. The pressure roller body 530 can be a rubber-coated composite roller.

[0089] To avoid pressing on the welding strip, in this embodiment, an annular relief groove is provided on the outer periphery of the pressure roller body 530. When the pressure roller body 530 presses on the strip tape 1000, the welding strip between the strip tape 1000 and the battery cell protrudes and is located in the annular relief groove, thereby avoiding the problem of welding strip deformation or even connection failure caused by pressing on the welding strip when pressing on the strip tape 1000.

[0090] Regarding the structure of the material tray 220, in this embodiment, the material tray 220 includes an inner tray 221 and two outer trays 222. The outer diameter of the inner tray 221 is smaller than the outer diameter of the outer trays 222. The inner tray 221 is sandwiched between the two outer trays 222. A roll of adhesive tape is sleeved on the outer periphery of the inner tray 221, and the maximum outer diameter of the roll of adhesive tape is smaller than the outer diameter of the outer trays 222. This arrangement restricts the degree of freedom of the roll of adhesive tape, preventing it from tilting.

[0091] The width of the inner disc 221 is slightly larger than the width of the roll of adhesive tape. For example, if the width of the roll of adhesive tape is 3 mm, then the width of the inner disc 221 is between 3.1 mm and 4 mm.

[0092] To reduce the weight of the material tray 220, in this embodiment, the inner tray 221 has a weight-reducing groove 2211, and a connecting groove is also formed on the outer surface of the inner tray 221. A clamping member passes through the connecting groove, with one end abutting against the inner ring of the roll of adhesive tape. The clamping member secures the roll of adhesive tape and the inner tray 221 together, preventing relative rotation between them. This prevents friction between the end of the roll of adhesive tape and the outer tray 222, which could lead to wear or even failure. The clamping member can be a ball screw.

[0093] The inner disc 221 has a through hole 2222 through which the feed rod 210 passes. Multiple feed trays 220 pass through the feed rods 210. The distance between two adjacent feed trays 220 is maintained by a spacer. The spacer has a spacer hole through which the feed rod 210 passes. The distance between two feed trays 220 is related to the width of the spacer, which is specifically determined based on the distance between two adjacent solder strips on the solar cell.

[0094] Several material trays 220 are provided, each rotatably mounted on a material rod 210. A limiting component is provided at each end of the material rod 210, and each material tray 220 is limited by two limiting components. Each limiting component includes a limiting sleeve 223 and a limiting screw 224. The limiting sleeve 223 is fitted onto the material rod 210 and has a limiting screw hole communicating with the inner cavity. The limiting screw 224 is screwed into the limiting screw hole and abuts against the outer circumference of the material rod 210. In this embodiment, the limiting screw 224 can be a wing bolt.

[0095] The tape application device includes a base 120, a first moving component 130, and a second moving component 140. The first moving component 130 is disposed on the base 120, and the second moving component 140 is disposed at the output end of the first moving component 130. A frame 100 is disposed at the output end of the second moving component 140. The first moving component 130 drives the second moving component 140 to move in the X direction, and the second moving component 140 drives the frame 100 to move in the Z direction, which is perpendicular to the X direction. This configuration enables the frame 100 to be driven in both the Z and X directions, thereby completing the bonding process of the strip tape 1000 onto the battery cell. Both the first moving component 130 and the second moving component 140 can be linear modules.

[0096] Example 2

[0097] This embodiment also provides a tape application method, applicable to the tape application device included in the above-described solution, the tape application method comprising the following steps:

[0098] Pull out the front ends of multiple rolls of adhesive tape to form a strip of adhesive tape 1000, and stick the strip of adhesive tape 1000 onto the corresponding solder strip on the battery cell;

[0099] Multiple rolls of tape are moved along the X-axis, so that the pulled-out strip of tape 1000 extends above the battery cell along the direction and position of the solder strip.

[0100] The pressure roller assembly 300 rolls the strip tape 1000 that extends on the battery cell so that the strip tape 1000 adheres the corresponding welding strip to the battery cell.

[0101] After a battery cell is pasted, the pressure roller assembly 300 drives the end of the strip tape 1000 to shift upward, so that there is a preset distance between the strip tape 1000 and the battery cell;

[0102] The cutting component 400 is used to cut the strip tape 1000 above the finished adhesive portion of the battery cell to form a sheet tape on the battery cell.

[0103] Using the above method, the application of sheet tape to the solar cell can be completed, thereby fixing the welding wire to the solar cell. This improves the bonding accuracy, and the pressure roller assembly 300 prevents wrinkles and air bubbles, reducing labor intensity. Furthermore, the height between the strip tape 1000 and the solar cell can be controlled. Specifically, by raising the pressure roller assembly 300 and then cutting it using the cutting assembly 400, the possibility of damage to the solar cell by the cutting assembly 400 during the cutting process can be effectively avoided.

[0104] The pressure roller assembly 300 includes a pressure roller bracket 310, a pressure roller body 320, and a guide member 330. The pressure roller body 320 is rotatably mounted on the pressure roller bracket 310. One end of the guide member 330 is rotatably mounted on the pressure roller bracket 310, and the other end can abut against the pressure roller bracket 310. The guide member 330 and the pressure roller body 320 are separated. Then, a strip of adhesive tape 1000 is passed through and around the pressure roller body 320. The guide member 330 is then released, pressing the strip of adhesive tape 1000 between the guide member 330 and the pressure roller body 320. The guide member 330 has an adhesive tape channel, and the rear end of the strip of adhesive tape 1000 passes through the adhesive tape channel and is adhered to the battery cell.

[0105] The oscillation of the pressure roller bracket 310 causes the pressure roller body 320 to move downward, thereby attaching the strip tape 1000 to the workpiece.

[0106] The frame 100 can be moved along the forward direction, or the workpiece can be moved, as long as the relative displacement between the frame 100 and the workpiece is ensured. Specifically, the strip tape 1000 can be cut after each workpiece is pasted, or the strip tape 1000 can be cut after several workpieces are pasted at the same time.

[0107] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An adhesive tape sticking device characterized by comprising: The application relates to a machine for cutting and pasting adhesive tape, which comprises the following components: a machine frame (100), a material rod (210) arranged on the machine frame (100), a material disc (220) arranged on the material rod (210) in a detachable and rotatable manner, the material disc (220) being used for mounting a roll-shaped adhesive tape, a supporting member (230) having a first position and a second position, the supporting member (230) in the first position being capable of supporting the material disc (220), and the supporting member (230) in the second position having a gap between the supporting member (230) and the material disc (220), a pressing wheel assembly (300) arranged on the machine frame (100), the pressing wheel assembly (300) being used for pushing a strip-shaped adhesive tape (1000) out of the roll-shaped adhesive tape and pasting the strip-shaped adhesive tape (1000) on a workpiece, and making the strip-shaped adhesive tape (1000) contact the workpiece or having a preset distance between the strip-shaped adhesive tape (1000) and the workpiece, a cutting assembly (400) arranged on the machine frame (100) and used for cutting the strip-shaped adhesive tape (1000) to form an individual piece-shaped adhesive tape, the supporting member (230) is arranged on the machine frame (100) in a sliding mode along a Z direction, the supporting member (230) in the first position is higher than the supporting member (230) in the second position, the material disc (220) is arranged in at least two, the supporting member (230) in the first position is capable of supporting at least two material discs (220) at the same time, when the supporting member (230) is moved to the first position, the material rod (210) is pulled out, so that all the material discs (220) are independent of each other and any material disc (220) needing to be replaced can be replaced, the pressing wheel assembly (300) comprises a pressing wheel support (310), a pressing wheel body (320) and a guide member (330), one end of the pressing wheel support (310) is hinged to the machine frame (100), the pressing wheel body (320) is arranged on the pressing wheel support (310) in a rotating mode, one end of the guide member (330) is arranged on the pressing wheel support (310) in a rotating mode, the other end of the guide member (330) is in contact with the pressing wheel body (320), and the abutting position of the other end of the guide member (330) and the pressing wheel body (320) is located in front of the abutting position of the pressing wheel body (320) and a battery piece, and the strip-shaped adhesive tape (1000) is limited between the pressing wheel body (320) and the guide member (330).

2. The tape sticking device according to claim 1, wherein the cutting assembly (400) comprises a cutting driving member (410) and a cutting knife (420), the cutting driving member (410) is arranged on the machine frame (100), the cutting knife (420) is connected to the output end of the cutting driving member (410), and the cutting knife (420) is located at the rear side of the forward direction of the pressing wheel body (320); and / or The pressure wheel assembly (300) further comprises a first elastic member (350), one end of the guide member (330) is rotatably arranged on the pressure wheel support (310), and the first elastic member (350) is arranged between the guide member (330) and the pressure wheel support (310) and used for abutting the other end of the guide member (330) and the pressure wheel body (320).

3. The tape application apparatus of claim 1, wherein The adhesive tape pasting device further comprises a pressure roller assembly (500), the pressure roller assembly (500) comprises a pressure roller driving member (510), a pressure roller support (520) and a pressure roller body (530), the pressure roller driving member (510) is arranged on the rack (100), the pressure roller support (520) is slidably arranged on the rack (100) along the Z direction and is in transmission connection with the output end of the pressure roller driving member (510), and the pressure roller body (530) is connected to the pressure roller support (520), the pressure roller driving member (510) is used for driving the pressure roller support (520) to move between a pressing position and a lifting position, and the pressure roller body (530) can press the strip-shaped adhesive tape (1000) on the workpiece when the pressure roller support (520) is in the pressing position.

4. The tape applicator device of claim 1, wherein The material disc (220) comprises an inner disc (221) and two outer discs (222), the outer diameter of the inner disc (221) is smaller than the outer diameter of the outer disc (222), the inner disc (221) is clamped between the two outer discs (222), and the roll-shaped adhesive tape is sleeved on the outer periphery of the inner disc (221), and the maximum outer diameter of the roll-shaped adhesive tape is smaller than the outer diameter of the outer disc (222).

5. The tape applicator device of claim 4, wherein, The inner disc (221) has a weight-reducing groove (2211), and a connecting groove is further formed in the outer surface of the inner disc (221), a pressing member is arranged in the connecting groove and abuts against the inner ring of the roll-shaped adhesive tape at one end; and / or The inner disc (221) has a through hole (2222), and the material rod (210) is arranged in the through hole (2222).

6. The tape applicator device of claim 1, wherein A plurality of material discs (220) are arranged, and the plurality of material discs (220) are rotatably arranged on the material rod (210), the material rod (210) is provided with one limiting assembly at each end, and the plurality of material discs (220) are limited by the two limiting assemblies.

7. The tape applicator device of any of claims 1-6, wherein, The adhesive tape pasting device comprises a base (120), a first moving assembly (130) and a second moving assembly (140), the first moving assembly (130) is arranged on the base (120), the second moving assembly (140) is arranged on the output end of the first moving assembly (130), and the rack (100) is arranged on the output end of the second moving assembly (140); the first moving assembly (130) is used for driving the second moving assembly (140) to move in the X direction, the second moving assembly (140) is used for driving the rack (100) to move in the Z direction, and the Z direction is perpendicular to the X direction.

8. A method of adhesive taping characterized by, The adhesive tape pasting method is suitable for the adhesive tape pasting device of any one of claims 1-7, and the adhesive tape pasting method comprises the following steps: The front ends of the plurality of roll-shaped tapes are pulled out to form a strip-shaped tape (1000), and the strip-shaped tape (1000) is attached to corresponding welding ribbons on the battery piece; The plurality of roll-shaped tapes are moved along the direction of the X axis, so that the pulled-out strip-shaped tape (1000) is extended along the direction and position of the welding ribbons above the battery piece; The strip-shaped tape (1000) extended on the battery piece is rolled by the pressure wheel assembly (300), so that the strip-shaped tape (1000) attaches the corresponding welding ribbons to the battery piece; After attaching one battery piece, the end of the strip-shaped tape (1000) is offset upward by the pressure wheel assembly (300), so that the strip-shaped tape (1000) has a preset distance from the battery piece; The cutting assembly (400) is used to cut the strip-shaped tape (1000) above the battery piece on which the gluing is completed.

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