A gluing device

Abstract

The application discloses a gluing device. The gluing device comprises a support, a glue injector, a driving member and an ink return blade. The glue injector is rotatably arranged on the support. The glue injector has an inner cavity for accommodating photosensitive glue. An outer wall of the glue injector is provided with a glue outlet hole in communication with the inner cavity. The driving member is used for driving the glue injector to rotate relative to the support in a first direction, so that the liquid level of the photosensitive glue is higher than or lower than the glue outlet hole, so that the photosensitive glue can overflow from the glue outlet hole to a polyester screen or stop overflowing. The ink return blade is arranged on the support and located at the rear side of the glue outlet hole along the coating direction of the gluing device. The ink return blade is used for extruding the photosensitive glue overflowing onto the polyester screen. The gluing device can timely control the glue injector to stop injecting glue onto the polyester screen, which not only can avoid waste of the photosensitive glue, but also can improve the efficiency of gluing preparation operation.

Description

Technical Field

[0001] This application relates to the field of adhesive coating equipment technology, and more particularly to an adhesive coating apparatus. Background Technology

[0002] When preparing RSH (Rear Emitter Si Heterojunction) solar cells, the process typically involves first applying photosensitive adhesive to a polyester screen using a coating device. The solar cell is then transferred to a designated coating area, where a back-inking knife is used to press the photosensitive adhesive onto the screen, allowing it to spread evenly across the cell surface through the mesh. Finally, the cell with the adhesive applied is removed from the coating area, completing one coating operation.

[0003] In related technologies, the coating apparatus includes a glue injector and a glue injection conduit communicating with the inner cavity of the glue injector. The glue injector is provided with a glue outlet. When the solar cell needs to undergo glue coating preparation, photosensitive adhesive is first injected into the inner cavity of the glue injector through the glue injection conduit. During the glue injection process, photosensitive adhesive can be continuously replenished into the glue injector through the glue injection conduit. The photosensitive adhesive in the glue injector overflows through the glue outlet and is injected onto the polyester screen. Then, the ink return knife squeezes the photosensitive adhesive onto the surface of the solar cell, completing the glue coating preparation process.

[0004] However, when glue application is not required, although the glue application tube no longer replenishes the photosensitive adhesive into the glue applicator, the photosensitive adhesive in the glue applicator can still continuously overflow through the glue outlet due to inertia. This can easily lead to the photosensitive adhesive dripping onto the polyester screen, requiring manual cleaning of the polyester screen. This not only wastes the photosensitive adhesive but also reduces the efficiency of the glue application process. Summary of the Invention

[0005] This application discloses a coating device that can control the glue dispenser to stop dispensing glue onto the polyester screen in a timely manner, which not only avoids waste of photosensitive adhesive, but also improves the efficiency of the coating preparation process.

[0006] To achieve the above objectives, this application discloses an adhesive application apparatus, comprising:

[0007] support;

[0008] The glue dispenser is rotatably mounted on the bracket. The glue dispenser has an inner cavity for containing photosensitive adhesive, and the outer wall of the glue dispenser has a glue outlet that communicates with the inner cavity.

[0009] A driving component is used to drive the dispensing device to rotate relative to the bracket in a first direction, so that the liquid level of the photosensitive adhesive is higher or lower than the dispensing hole, so that the photosensitive adhesive can overflow from the dispensing hole to the polyester screen or stop overflowing.

[0010] The ink return blade is disposed on the bracket along the coating direction of the coating device. The ink return blade is located behind the glue outlet hole and is used to squeeze the photosensitive adhesive that overflows onto the polyester screen.

[0011] In a first possible implementation, the dispensing device includes a first cavity wall and a second cavity wall disposed opposite to each other. The first cavity wall and the second cavity wall are both parallel to the coating direction and both are perpendicular to the horizontal plane. The first cavity wall and the second cavity wall are respectively rotatably connected to the bracket along the first direction. The plane containing the first direction is parallel to the coating direction.

[0012] In a first possible implementation, the adhesive applicator further includes a disassembly frame detachably disposed on the support, wherein the first cavity wall and the second cavity wall are rotatably connected to the disassembly frame along the first direction.

[0013] In a first possible implementation, the disassembly frame includes a crossbeam and a vertical beam, the crossbeam being detachably connected to the support, the vertical beam being connected to the crossbeam, the first cavity wall being rotatably connected to the vertical beam along the first direction, the drive member being disposed on the crossbeam, and the drive end of the drive member being rotatably connected to the second cavity wall to drive the dispensing device to rotate along the first direction.

[0014] In a first possible implementation, a connector is provided on the second cavity wall, one end of the connector is fixedly connected to the second cavity wall, and the other end of the connector is rotatably connected to the driving end of the driving member to drive the connector to rotate along the first direction.

[0015] In a first possible implementation, the dispensing device further includes a third cavity wall and a fourth cavity wall, both of which are connected to the first cavity wall and the second cavity wall, and are arranged opposite to each other along the coating direction, with the dispensing hole disposed on the third cavity wall.

[0016] In a first possible implementation, the strip-shaped hole extends in a direction parallel to the horizontal plane.

[0017] In a first possible implementation, along the coating direction, the third cavity wall is closer to the ink return blade than the fourth cavity wall.

[0018] In a first possible implementation, when the third cavity wall rotates to a vertical position along the first direction, the orthographic projection of the fourth cavity wall onto the third cavity wall is located inside the third cavity wall and below the dispensing hole.

[0019] In a first possible implementation, the outer wall of the dispensing device is further provided with an inlet that communicates with the inner cavity. The inlet is located on any side wall of the dispensing device that is parallel to the coating direction and perpendicular to the horizontal plane. The inlet is connected to a dispensing conduit for injecting photosensitive adhesive into the inner cavity.

[0020] Compared with the prior art, the beneficial effects of this application are as follows:

[0021] In this application, the dispensing device is rotatably mounted on a support. A driving member is used to drive the dispensing device to rotate relative to the support in a first direction, so that the liquid level of the photosensitive adhesive is higher or lower than the dispensing hole, allowing the photosensitive adhesive to overflow from the dispensing hole onto the polyester screen or stopping the overflow. When dispensing adhesive using this applicator, the driving member can drive the dispensing device to rotate in the first direction (e.g., counterclockwise) so that the photosensitive adhesive contained in the inner cavity of the dispensing device can overflow from the dispensing hole onto the polyester screen. When it is necessary for the applicator to stop dispensing adhesive, the driving member can drive the dispensing device to rotate in the opposite direction (e.g., clockwise). The needle is rotated (in the direction of rotation) to ensure that the level of photosensitive adhesive in the inner cavity is lower than or equal to the lower edge of the dispensing hole. This allows the photosensitive adhesive to stop overflowing from the dispensing hole in a timely manner, thus achieving the purpose of timely control of the dispensing device to stop dispensing adhesive. This prevents the photosensitive adhesive in the dispensing device from continuing to be dispensed onto the polyester screen through the dispensing hole after dispensing has stopped. This not only avoids the waste of photosensitive adhesive but also prevents the polyester screen from needing manual cleaning or sticking to the screen due to the photosensitive adhesive still being dispensed onto it after dispensing has stopped, thereby improving the efficiency of the adhesive preparation process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a half-sectional view of a glue-applying device in the prior art;

[0024] Figure 2 This is a perspective view of a glue-applying device in the prior art;

[0025] Figure 3This is a half-sectional view of an adhesive applicator provided in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of a glue application device that eliminates the ink return blade and bracket, as provided in an embodiment of this application.

[0027] Figure 5 This is a left view of an adhesive applicator provided in an embodiment of this application;

[0028] Figure 6 This is a right view of an adhesive applicator provided in an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Support; 2-Glue injector; 21-First cavity wall; 211-Glue inlet; 22-Second cavity wall; 221-Connector; 23-Third cavity wall; 231-Glue outlet; 24-Fourth cavity wall; 25-Glue injection guide tube; 3-Driver; 4-Return ink knife; 5-Disassembly frame; 51-Horizontal beam; 52-Vertical beam; 100-Glue application device. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] In this application, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0034] Figure 1 The image shown is a half-sectional view of a prior art adhesive application apparatus. Figure 2 The image shown is a perspective view of a prior art adhesive application apparatus. Please refer to it. Figure 1 and Figure 2 As shown. The coating device 100 includes a return ink knife 4, a glue injector 2, and a glue injection conduit 25 communicating with the inner cavity of the glue injector 2. The glue injector 2 is provided with a plurality of glue outlet holes 231 that communicate with the inner cavity of the glue injector 2 at intervals. When it is necessary to prepare the solar cell by coating, the photosensitive adhesive is first injected into the inner cavity of the glue injector 2 through the glue injection conduit 25 until the photosensitive adhesive in the inner cavity reaches the position of the glue outlet hole 231. The photosensitive adhesive overflows through the glue outlet hole 231 and is injected onto the polyester screen. Then, the return ink knife 4 squeezes the photosensitive adhesive on the polyester screen onto the surface of the solar cell, so that the photosensitive adhesive is laid on the surface of the solar cell to complete the coating preparation operation. During the coating process, the photosensitive adhesive can be replenished into the inner cavity of the glue injector 2 in real time through the glue injection conduit 25.

[0035] However, when applying adhesive using the above-mentioned adhesive applicator 100, when the adhesive application is completed or when it is no longer necessary to apply adhesive due to other factors, the photosensitive adhesive is very likely to continue to overflow from the adhesive outlet 231 and drip onto the polyester screen under the action of inertia. This causes the polyester screen to not only need to be cleaned manually, but may also stick to the screen, which wastes the photosensitive adhesive and reduces the efficiency of the adhesive preparation operation.

[0036] In view of this, this application discloses a coating device that can control the glue dispenser to stop dispensing glue onto the polyester screen in a timely manner, which can not only avoid the waste of photosensitive adhesive, but also improve the efficiency of the coating preparation operation.

[0037] The technical solution of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0038] Figure 3 The image shown is a half-sectional view of an adhesive applicator provided in an embodiment of this application. Figure 4 The diagram shown is a structural schematic of an adhesive applicator that eliminates the ink return blade and support, according to an embodiment of this application. Figure 5 The image shown is a left view of an adhesive applicator provided in an embodiment of this application. Figure 6 The image shown is a right view of an adhesive applicator provided in an embodiment of this application. Please refer to [the image / reference]. Figures 3-6 As shown.

[0039] This embodiment provides an adhesive application device 100, including a support 1, an adhesive applicator 2, a drive unit 3, and an ink return blade 4. The adhesive applicator 2 is rotatably mounted on the support 1 and has an inner cavity for containing photosensitive adhesive. An adhesive outlet 231 communicating with the inner cavity is provided on the outer wall of the adhesive applicator 2. The drive unit 3 drives the adhesive applicator 2 relative to the support 1 along a first direction (e.g., ...). Figure 6Rotate the device in the direction indicated by X to make the liquid level of the photosensitive adhesive higher or lower than the dispensing hole 231, so that the photosensitive adhesive can overflow from the dispensing hole 231 to the polyester screen or stop overflowing. The ink return knife 4 is set on the support 1 and moves along the coating direction of the coating device 100 (e.g., ...). Figure 5 (as shown in the Y direction), the ink return knife 4 is located behind the glue outlet 231 (as shown in the Y direction). Figure 5 Along the direction shown by Y, the ink return knife 4 is located to the right of the glue dispenser 2. The ink return knife 4 is used to squeeze out the photosensitive adhesive that overflows onto the polyester screen.

[0040] It should be clarified that, as mentioned above, "the level of photosensitive adhesive above the dispensing hole 231" means that the level of photosensitive adhesive is above the lower edge of the dispensing hole 231, allowing the photosensitive adhesive to overflow through the dispensing hole 231. "The level of photosensitive adhesive below the dispensing hole 231" means that the level of photosensitive adhesive is below or flush with the lower edge of the dispensing hole 231, preventing the photosensitive adhesive from overflowing through the dispensing hole 231.

[0041] It should also be explained that the aforementioned first direction refers to the direction of rotation of the glue applicator 2 relative to the bracket 1. This can be the direction in which the glue applicator 2 rotates towards or away from the bracket 1, such as... Figure 6 The direction indicated by X in the middle; it can also be, as... Figure 1 In the middle, the glue dispenser 2 along Figure 1 The left and right directions of rotation relative to the bracket 1 are not limited as long as the photosensitive adhesive can overflow from the dispensing hole 231 to the polyester screen or stop overflowing after the dispensing device 2 rotates relative to the bracket 1 in the first direction.

[0042] The aforementioned ink return blade 4 is located behind the glue outlet 231, as can be seen from [reference needed]. Figure 5 As shown, the ink return knife 4 is located on the right side of the glue dispenser 2. So, along the coating direction, i.e., the direction indicated by the Y arrow, the ink return knife 4 on the right side is located behind the glue dispenser 2, and the glue outlet 231 is set on the glue dispenser 2. That is, along the coating direction, the ink return knife 4 is located behind the glue outlet 231, so that after the photosensitive adhesive overflows from the glue outlet 231 and is injected onto the polyester screen, the ink return knife 4 can squeeze the photosensitive adhesive from the polyester screen onto the surface of the battery cell.

[0043] In this embodiment, the glue applicator 2 has an inner cavity for containing photosensitive adhesive. An adhesive outlet 231 communicating with the inner cavity is provided on the outer wall of the glue applicator 2, allowing the photosensitive adhesive to overflow through the outlet 231 and be applied to the polyester screen. Along the coating direction of the coating apparatus 100, the ink return blade 4 is located behind the outlet 231, enabling the ink return blade 4 to promptly squeeze the photosensitive adhesive applied to the polyester screen onto the surface of the solar cell, thus completing the coating preparation operation of the solar cell.

[0044] The dispensing device 2 is rotatably mounted on the support 1. The driving component 3 drives the dispensing device 2 to rotate relative to the support 1 in a first direction, so that the liquid level of the photosensitive adhesive is higher or lower than the dispensing hole 231, so that the photosensitive adhesive can overflow from the dispensing hole 231 onto the polyester screen or stop overflowing. When dispensing adhesive using the coating device 100, the driving component 3 can drive the dispensing device 2 to rotate in the first direction (e.g., Figure 6 The dotted line indicates that the glue dispenser 2 rotates counterclockwise so that the photosensitive adhesive contained in the inner cavity of the glue dispenser 2 can overflow onto the polyester screen through the glue outlet 231. When the glue application device 100 needs to stop glue application, the drive unit 3 can drive the glue dispenser 2 to rotate in the opposite direction (such as clockwise) so that the liquid level of the photosensitive adhesive in the inner cavity is lower than or equal to the lower edge of the glue outlet 231, so that the photosensitive adhesive can stop overflowing from the glue outlet 231 in time. This achieves the purpose of timely control of the glue dispenser 2 to stop glue application, preventing the photosensitive adhesive in the glue dispenser 2 from continuing to be applied to the polyester screen through the glue outlet 231 after glue application stops. This not only avoids the waste of photosensitive adhesive, but also avoids the situation where the polyester screen needs to be manually cleaned or the polyester screen sticks to the plate because the photosensitive adhesive can still be applied to the polyester screen after glue application stops, thus improving the efficiency of the glue application preparation operation.

[0045] The aforementioned driving component 3 is used to drive the dispensing device 2 to rotate relative to the bracket 1 in the first direction. The rotation angle of the dispensing device 2 relative to the bracket 1 in the first direction driven by the driving component 3 can be 30°, 40°, 45°, 50°, etc., and is not limited here.

[0046] In addition, the ink return blade 4 is mounted on the bracket 1. The ink return blade 4 and the bracket 1 can be integrally formed, or the ink return blade 4 can be glued to the bracket 1, or the ink return blade 4 can be welded to the bracket 1. There is no limitation here.

[0047] Optionally, the dispensing device 2 may include a first cavity wall 21 and a second cavity wall 22 disposed opposite to each other. The first cavity wall 21 and the second cavity wall 22 are both parallel to the coating direction and both are perpendicular to the horizontal plane. The first cavity wall 21 and the second cavity wall 22 are respectively rotatably connected to the support 1 along a first direction. The plane containing the first direction is parallel to the coating direction.

[0048] Therefore, the plane containing the first cavity wall 21 and the second cavity wall 22 can be parallel to the plane containing the first direction. When the glue injector 2 injects glue, the rotation of the glue injector 2 is less likely to interfere with the glue injection action, and it is also less likely to interfere with the ink return knife 4 due to the rotation of the glue injector 2 along the first direction. When the first cavity wall 21 and the second cavity wall 22 are rotatably connected and assembled with the bracket 1, it is not necessary to consider the glue injection of the glue injector 2 and the position of the ink return knife 4, which reduces the difficulty of connecting the first cavity wall 21 and the second cavity wall 22 with the bracket 1.

[0049] The rotational connection between the first cavity wall 21 and the bracket 1 along the first direction can be implemented in various ways. For example, the first cavity wall 21 and the bracket 1 can be rotatably connected by a rotating shaft, or they can be rotatably connected by a hinge; or the first cavity wall 21 and the bracket 1 can be rotatably connected by a bearing. Specifically, the outer ring of the bearing can be fixedly connected to the first cavity wall 21, and the bracket 1 can be fixedly connected to the inner ring of the bearing. This structure is simple, convenient, and easy to implement. Of course, the rotational connection between the first cavity wall 21 and the bracket 1 can also be implemented in other ways, which are not limited here.

[0050] The method of achieving the rotational connection between the second cavity wall 22 and the support 1 along the first direction is roughly the same as the rotational connection between the first cavity wall 21 and the support 1 along the first direction, and will not be described in detail here.

[0051] In addition, the first cavity wall 21 and the second cavity wall 22 can be two cavity walls with the same structure, which reduces the manufacturing difficulty of the glue injector 2. Of course, they can also be two cavity walls with certain differences, which is not limited here.

[0052] Optionally, such as Figure 3 and Figure 4 As shown, the adhesive applicator 100 also includes a disassembly frame 5, which is detachably mounted on the support 1. The first cavity wall 21 and the second cavity wall 22 are rotatably connected to the disassembly frame 5 in a first direction.

[0053] Therefore, the glue applicator 2 can be rotatably connected to the disassembly frame 5, and the disassembly frame 5 can be detachably mounted on the bracket 1, so that the glue applicator 2 and the bracket 1 can be manufactured separately, reducing the manufacturing difficulty of the glue applicator 100. When the glue applicator 2 needs to be maintained or replaced, the disassembly frame 5 can be removed from the bracket 1, which facilitates the maintenance and replacement of the glue applicator 2 in the future.

[0054] The disassembly frame 5 can be detachably mounted on the bracket 1 in various ways. For example, the disassembly frame 5 and the bracket 1 can be connected by bolts, or the disassembly frame 5 and the bracket 1 can be detachably connected by hooks and buckles. No limitation is made here.

[0055] Optionally, such as Figure 3and Figure 4 As shown, the disassembly frame 5 includes a crossbeam 51 and a vertical beam 52. The crossbeam 51 is detachably connected to the bracket 1, and the vertical beam 52 is connected to the crossbeam 51. The first cavity wall 21 is rotatably connected to the vertical beam 52 along the first direction. The driving member 3 is disposed on the crossbeam 51, and the driving end of the driving member 3 is rotatably connected to the second cavity wall 22 to drive the glue injector 2 to rotate along the first direction.

[0056] Therefore, by rotatably connecting the vertical beam 52 to the first cavity wall 21, and by setting the driving member 3 on the horizontal beam 51, the driving end of the driving member 3 is rotatably connected to the second cavity wall 22. Compared with the disassembly frame 5, which also includes another vertical beam 52 and is rotatably connected to the second cavity wall 22, the structure of the disassembly frame 5 is simplified, the manufacturing difficulty of the disassembly frame 5 is reduced, and the weight of the glue applicator 100 is also reduced.

[0057] The aforementioned vertical beam 52 is connected to the horizontal beam 51. The vertical beam 52 and the horizontal beam 51 can be integrally formed, or the vertical beam 52 can be welded to the horizontal beam 51, or the vertical beam 52 can be connected to the horizontal beam 51 through a threaded pair. No limitation is made here.

[0058] The vertical beam 52 is connected to the horizontal beam 51. This connection can be made at one end of the vertical beam 52 and at one end of the horizontal beam 51, or at other locations of the vertical beam 52 and the horizontal beam 51. No limitation is made here.

[0059] The first cavity wall 21 is rotatably connected to the vertical beam 52. It can be rotatably connected to the end of the vertical beam 52 away from the horizontal beam 51, or it can be rotatably connected to other positions of the vertical beam 52. No limitation is made here.

[0060] The driving component 3 is disposed on the crossbeam 51. The fixed end of the driving component 3 may be disposed at the end of the crossbeam 51 away from the vertical beam 52, or the fixed end of the driving component 3 may be disposed at another position of the crossbeam 51 that avoids the vertical beam 52. There is no limitation here.

[0061] The driving end of the driving component 3 is rotatably connected to the second cavity wall 22, and the driving end of the driving component 3 is rotatably connected to the edge of the second cavity wall 22 near the edge of the ink return blade 4 or away from the edge of the ink return blade 4; it is possible that the second cavity wall 22 has a connecting plate extending in the direction of approaching or away from the ink return blade 4, and the driving end of the driving component 3 is rotatably connected to the connecting plate; of course, the driving end of the driving component 3 can also be rotatably connected to other positions of the second cavity wall 22, as long as the driving component 3 can drive the second cavity wall 22 to rotate in the first direction, which is not limited here.

[0062] The aforementioned driving component 3 can be any of the following: a cylinder, an electric cylinder, a combination of a motor and a lead screw and nut, or a combination of a motor and a gear and rack, etc., and is not limited here.

[0063] Furthermore, when the driving component 3 is a pneumatic cylinder, an electric cylinder, or a hydraulic cylinder, the extension direction of the piston rod of the pneumatic cylinder, electric cylinder, or hydraulic cylinder can be the same as the extension direction of the vertical beam 52. When the piston rod extends or retracts, it can drive the second cavity wall 22 to rotate in the first direction, thereby enabling the glue dispenser 2 to rotate in the first direction.

[0064] In addition, the drive unit 3 and the vertical beam 52 can be located at both ends of the horizontal beam 51 to reduce the length of the horizontal beam 51 and the space occupied by the horizontal beam 51, thereby reducing the space occupied by the disassembly frame 5. One end of the vertical beam 52 is connected to one end of the horizontal beam 51, and the other end of the vertical beam 52 is rotatably connected to the first cavity wall 21 to reduce the length of the vertical beam 52 and the space occupied by the vertical beam 52, thereby further reducing the space occupied by the disassembly frame 5.

[0065] Optionally, such as Figure 3 , Figure 4 and Figure 6 As shown, a connector 221 is provided on the second cavity wall 22. One end of the connector 221 is fixedly connected to the second cavity wall 22, and the other end of the connector 221 is rotatably connected to the driving end of the driving member 3 to drive the connector 221 to rotate in the first direction.

[0066] Therefore, it is possible to avoid setting a rotating hole on the second cavity wall 22 for rotatable connection with the driving end of the driving component 3, and to avoid the need to seal the rotating hole due to setting the rotating hole directly on the second cavity wall 22, thus reducing the difficulty of rotatable connection between the second cavity wall 22 and the driving end of the driving component 3; at the same time, it is also possible to avoid the photosensitive adhesive overflowing from the rotating hole due to setting the rotating hole on the second cavity wall 22, thus avoiding the waste of photosensitive adhesive.

[0067] One end of the connector 221 is fixedly connected to the second cavity wall 22, and the other end of the connector 221 can extend along the coating direction or in the opposite direction to the coating direction and protrude from the second cavity wall 22 to facilitate the rotational connection between the other end of the connector 221 and the driving end of the driving member 3.

[0068] There are multiple ways to achieve the rotatable connection between the other end of the connector 221 and the driving end of the drive component 3. For example, the other end of the connector 221 can be rotatably connected to the driving end of the drive component 3 through a rotating shaft, or the other end of the connector 221 can be rotatably connected to the driving end of the drive component 3 through a universal ball. No limitation is made here.

[0069] Furthermore, the connector 221 can be implemented in various ways. In one possible implementation, the connector 221 may include a first connecting rod and a second connecting rod. The first end of the first connecting rod is fixedly connected to the second cavity wall 22, and the second end of the first connecting rod is rotatably connected to the first end of the second connecting rod. The second end of the second connecting rod is rotatably connected to the driving end of the driving member 3. In this way, the driving member 3 can drive the second connecting rod to rotate, and the second connecting rod drives the first connecting rod to rotate, so that the first connecting rod can drive the dispensing device 2 to rotate in the first direction until the photosensitive adhesive overflows from the dispensing hole 231; or, the driving member 3 can drive the second connecting rod to rotate, and the second connecting rod drives the first connecting rod to rotate, so that the first connecting rod can drive the dispensing device 2 to rotate in the opposite direction to the first direction until the dispensing device 2 returns to its original position before dispensing, so that the photosensitive adhesive can stop overflowing from the dispensing hole 231 in time.

[0070] In another implementation of the connector 221, the connector 221 may include a connecting arm. One end of the connecting arm is fixedly connected to the second cavity wall 22, and the other end of the connecting arm extends along the coating direction or in the opposite direction to the coating direction and protrudes from the second cavity wall 22. Along the extending direction of the connecting arm, a groove is provided on the connecting arm, and a slider is slidably embedded in the groove. The slider is rotatably connected to the driving end of the driving member 3. Thus, the driving member 3 can drive the slider to slide in the groove. The slider presses against the groove wall to drive the connecting arm to rotate along the first direction or in the opposite direction. This allows the connecting arm to drive the dispensing device 2 to rotate along the first direction or in the opposite direction, thereby enabling the photosensitive adhesive to overflow from the dispensing device 2 and be dispensed onto the polyester screen, or to promptly stop the photosensitive adhesive from overflowing from the dispensing device 2 and being dispensed onto the polyester screen.

[0071] In some embodiments, such as Figures 3-6 As shown, the dispensing device 2 also includes a third cavity wall 23 and a fourth cavity wall 24. The third cavity wall 23 and the fourth cavity wall 24 are both connected to the first cavity wall 21 and the second cavity wall 22, and the third cavity wall 23 and the fourth cavity wall 24 are arranged opposite to each other along the coating direction. The dispensing hole 231 is provided on the third cavity wall 23.

[0072] Therefore, by setting the dispensing hole 231 on the third cavity wall 23, and setting the third cavity wall 23 and the fourth cavity wall 24 opposite to each other along the coating direction, the photosensitive adhesive overflowing through the dispensing hole 231 can be concentrated and injected into the front of the ink return knife 4, so that the photosensitive adhesive injected onto the polyester screen can be squeezed from the polyester screen to the surface of the battery cell by the ink return knife 4, thereby making the photosensitive adhesive spread more evenly.

[0073] The glue outlet 231 is disposed on the third cavity wall 23. It can be disposed at any position on the third cavity wall 23. For example, it can be disposed near the top of the third cavity wall 23 so that the glue dispenser 2 can hold more photosensitive glue. Alternatively, it can be disposed near the bottom of the third cavity wall 23 so that less photosensitive glue can be injected into the inner cavity of the glue dispenser 2 to inject glue onto the polyester screen, thereby improving the glue dispensing efficiency of the glue dispenser 2. Of course, the glue outlet 231 can also be disposed at other positions on the third cavity wall 23, which is not limited here.

[0074] The aforementioned adhesive outlet 231 can be implemented in various ways. In the first possible implementation, the adhesive outlet 231 can be a small hole that is circular or elliptical, and there can be multiple adhesive outlets 231. Multiple adhesive outlets 231 can be arranged at intervals along the horizontal direction on the third cavity wall 23, so that the photosensitive adhesive can be injected into the polyester screen through multiple adhesive outlets 231 arranged at intervals along the horizontal direction with a wider width, thereby improving the efficiency of adhesive injection and thus improving the efficiency of adhesive preparation.

[0075] In another possible implementation of the dispensing hole 231, the dispensing hole 231 is a strip-shaped hole that extends in a direction parallel to the horizontal plane.

[0076] This allows the photosensitive adhesive to overflow through the strip holes and be injected onto the polyester screen, ensuring that the photosensitive adhesive injected onto the polyester screen is continuous and uniform along the length of the strip holes (i.e., the width direction of the photosensitive adhesive injected onto the polyester screen). This results in better uniformity of the photosensitive adhesive that is squeezed onto the battery cell by the ink return knife 4, thus improving the quality of the coating.

[0077] The two ends of the strip-shaped hole can extend to the first cavity wall 21 or the second cavity wall 22 respectively, so that the strip-shaped hole can have a longer length, and the photosensitive adhesive can be applied to the polyester screen for a longer length, thereby enabling the adhesive applicator 2 to apply adhesive to the polyester screen with a wider width, and thus enabling a wider width to be laid on the battery cell, improving the efficiency of the adhesive preparation operation.

[0078] Optionally, along the coating direction, the third cavity wall 23 is closer to the ink return knife 4 than the fourth cavity wall 24. That is, the third cavity wall 23 is the side wall of the dispensing device 2 facing the ink return knife 4, and the fourth cavity wall 24 is the side wall of the dispensing device 2 away from the ink return knife 4.

[0079] Therefore, after the photosensitive adhesive overflows onto the polyester screen through the dispensing hole 231, it can be squeezed onto the surface of the battery cell by the ink return knife 4 in a relatively timely manner. This prevents the photosensitive adhesive from sticking to the polyester screen for too long after being injected, which would make it difficult for the ink return knife 4 to completely squeeze the photosensitive adhesive from the polyester screen onto the battery cell. This reduces the difficulty for the ink return knife 4 to squeeze the photosensitive adhesive from the polyester screen onto the surface of the battery.

[0080] The third cavity wall 23 and the fourth cavity wall 24 mentioned above can be the same shape and size, which is convenient and simple to manufacture. Alternatively, they can have certain differences in shape and size. This is not limited here, and the specific choice can be made according to the actual situation.

[0081] Optionally, such as Figure 5 and Figure 6 As shown, when the third cavity wall 23 rotates to a vertical position along the first direction, the orthographic projection of the fourth cavity wall 24 onto the third cavity wall 23 is located inside the third cavity wall 23 and below the glue outlet 231.

[0082] Therefore, the maximum allowable liquid level of photosensitive adhesive in the inner cavity can be marked by the vertical height of the fourth cavity wall 24. This prevents the photosensitive adhesive from overflowing through the adhesive outlet 231 when too much photosensitive adhesive is injected into the inner cavity before the coating device 100 has moved in the coating direction. This also avoids the situation where the photosensitive adhesive is too thick on the battery cell in the initial stage of the coating preparation operation because the coating device 100 has not moved in the coating direction when the photosensitive adhesive has overflowed onto the polyester screen.

[0083] Furthermore, by marking the maximum allowable liquid level of photosensitive adhesive in the inner cavity by the vertical height of the fourth cavity wall 24, it is not necessary to mark the maximum allowable liquid level of photosensitive adhesive in the inner cavity on the outer wall of the dispensing device 2, thus simplifying the manufacturing process of the dispensing device 2.

[0084] It should be explained that the above-mentioned orthographic projection of the fourth cavity wall 24 on the third cavity wall 23 being located directly below the glue outlet hole 231 means that the orthographic projection of the fourth cavity wall 24 on the third cavity wall 23 is located below the lower edge of the glue outlet hole 231, or is flush with the lower edge of the glue outlet hole 231.

[0085] The dispensing device 2 may also include a bottom wall and a top wall. The first cavity wall 21, the second cavity wall 22, the third cavity wall 23, the fourth cavity wall 24, the bottom wall and the top wall enclose an inner cavity. Along the horizontal direction perpendicular to the coating direction, the shape of the cross-section of the dispensing device 2 may be trapezoidal, parallelogram, or approximately elliptical, etc., and is not limited here.

[0086] In some embodiments, such as Figure 3 and Figure 5As shown, the outer wall of the glue dispenser 2 is also provided with a glue inlet 211 that communicates with the inner cavity. The glue inlet 211 is located on any side wall of the glue dispenser 2 that is parallel to the coating direction and perpendicular to the horizontal plane. The glue inlet 211 is connected to a glue dispensing conduit 25, which is used to inject photosensitive glue into the inner cavity.

[0087] Therefore, by setting the glue inlet 211 on any side wall of the glue dispenser 2 that is parallel to the coating direction and perpendicular to the horizontal plane, the glue dispensing guide 25 is less likely to interfere with the ink return knife 4, the bracket 1, etc. when the glue dispenser 2 rotates in the first direction.

[0088] The glue inlet 211 connects to the glue injection conduit 25, which is used to inject photosensitive adhesive into the inner cavity. This allows the glue injector 2 to continuously replenish the inner cavity through the glue injection conduit 25 while injecting adhesive onto the polyester screen, ensuring the liquid level of the photosensitive adhesive in the glue injector 2 remains at the same level. This, in turn, allows the drive unit 3 to maintain the same rotation angle of the glue injector 2 along the first direction, simplifying the control program of the drive unit 3. Simultaneously, during the adhesive preparation operation, the glue injector 2 can continuously overflow photosensitive adhesive onto the polyester screen, ensuring a continuous and uniform application of photosensitive adhesive to the battery surface.

[0089] The glue inlet 211 is located on any side wall of the glue dispenser 2 that is parallel to the coating direction and perpendicular to the horizontal plane. The glue inlet 211 can be located on the first cavity wall 21 or on the second cavity wall 22.

[0090] In addition, when the glue inlet 211 is provided on the first cavity wall 21, the position of the glue inlet 211 on the first cavity wall 21 can be in various ways. For example, the glue inlet 211 can be located near the bottom wall of the first cavity wall 21 so that the remaining photosensitive glue in the glue dispenser 2 can be discharged through the glue inlet 211 after the glue preparation is completed; the glue inlet 211 can also be located in the middle of the first cavity wall 21; or the glue inlet 211 can be located near the top wall of the first cavity wall 21. There is no limitation here.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A gluing device, characterized in that, The application relates to a glue applying device. The glue applying device comprises a support, a glue injector rotatably arranged on the support, an inner cavity of the glue injector being used for containing photosensitive glue, an outflow hole being arranged on an outer wall of the glue injector and being communicated with the inner cavity, a driving member being used for driving the glue injector to rotate relative to the support along a first direction, so that the liquid level of the photosensitive glue is higher than or lower than the outflow hole, so that the photosensitive glue can overflow from the outflow hole to a polyester screen or stop overflowing, and a back-ink blade being arranged on the support and being located at the back side of the outflow hole along the coating direction of the glue applying device, the back-ink blade being used for extruding the photosensitive glue overflowing to the polyester screen. The glue injector comprises oppositely arranged first and second cavity walls, the first and second cavity walls are parallel to the coating direction and are perpendicular to a horizontal plane, and the first and second cavity walls are respectively rotatably connected with the support along the first direction, and a plane where the first direction is located is parallel to the coating direction. The glue applying device further comprises a dismounting frame which is detachably arranged on the support, and the first and second cavity walls are rotatably connected with the dismounting frame along the first direction. The dismounting frame comprises a horizontal beam which is detachably connected with the support and a vertical beam which is connected with the horizontal beam, the first cavity wall is rotatably connected with the vertical beam along the first direction, the driving member is arranged on the horizontal beam, and a driving end of the driving member is rotatably connected with the second cavity wall, so as to drive the glue injector to rotate along the first direction.

2. The gluing apparatus according to claim 1, wherein A connecting member is arranged on the second cavity wall, one end of the connecting member is fixedly connected with the second cavity wall, and the other end of the connecting member is rotatably connected with the driving end of the driving member, so as to drive the connecting member to rotate along the first direction.

3. The gluing apparatus according to claim 2, wherein The glue injector further comprises third and fourth cavity walls, the third and fourth cavity walls are connected with the first and second cavity walls, the third and fourth cavity walls are oppositely arranged along the coating direction, and the outflow hole is arranged on the third cavity wall.

4. The gluing apparatus according to claim 3, wherein The outflow hole is a strip-shaped hole which extends along a direction parallel to the horizontal plane.

5. The gluing apparatus according to claim 4, wherein Along the coating direction, the third cavity wall is closer to the back-ink blade than the fourth cavity wall.

6. The gluing apparatus according to any one of claims 2 to 5, characterized in that When the third cavity wall is rotated to be vertical along the first direction, the orthographic projection of the fourth cavity wall on the third cavity wall is located in the third cavity wall and below the outflow hole.

7. The gluing apparatus according to claim 6, wherein An inflow hole which is communicated with the inner cavity is further arranged on the outer wall of the glue injector, the inflow hole is arranged on any side wall of the glue injector which is parallel to the coating direction and perpendicular to the horizontal plane, an inflow guide pipe which is used for injecting photosensitive glue into the inner cavity is communicated with the inflow hole.

8. The gluing apparatus according to claim 6, wherein ​ 9. The gluing apparatus according to claim 6, wherein ​ 10. The gluing apparatus according to any one of claims 1 to 5, wherein ​

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