Adhesive application device

Abstract

An adhesive applicator is provided for applying adhesive to a battery cell wound on a needle winding mechanism. The adhesive applicator includes an adhesive preparation mechanism, an adhesive application mechanism, and a pressing mechanism. The adhesive preparation mechanism provides adhesive tape to the adhesive application mechanism. The adhesive application mechanism applies the adhesive tape to a preset position on the battery cell. The pressing mechanism presses the battery cell against the adhesive application mechanism during operation.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing equipment technology, and in particular to an adhesive application device. Background Technology

[0002] Currently, wound cells are widely used in batteries. The manufacturing process of wound cells generally involves mounting the winding materials (such as positive and negative electrode sheets and separators) used to form the wound cell onto the winding needles of a cell winding machine, driving the winding needles to rotate and wind the winding materials into a cell; after winding is completed, the winding material is cut off, and finally, an adhesive application operation is performed. The end of the cell winding material is sealed to the surface of the cell using adhesive tape provided by the adhesive application device to ensure that the cell outline is complete and tightly wound.

[0003] In existing battery cell winding equipment, especially those used to manufacture small and micro battery cells (such as the cells for Bluetooth headset batteries, whose diameter is usually no more than 3 mm), the following problems easily occur during the adhesive application process: Due to the small size of the wound battery cells, the adhesive application process after winding is difficult and the accuracy is hard to guarantee, easily resulting in inaccurate tape placement or weak adhesion; more seriously, because the winding needles are also very small, their strength is low. When the adhesive application device feeds the tape to the battery cells wound on the needles, careless operation can easily cause the adhesive application device to move excessively, resulting in a heavy impact on the needles, which may damage them. Summary of the Invention

[0004] The main technical problem this application addresses is to provide an adhesive application device with higher application accuracy and the ability to effectively protect the winding needles of the battery cell winding equipment.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application embodiment is: an adhesive applicator for applying adhesive to a battery cell wound on a needle winding mechanism, the adhesive applicator including an adhesive preparation mechanism, an adhesive application mechanism, and a pressing mechanism; the adhesive preparation mechanism is used to provide adhesive tape to the adhesive application mechanism; the adhesive application mechanism is used to apply the adhesive tape to a preset position on the battery cell; the pressing mechanism is used to press against the battery cell when the adhesive application mechanism is working.

[0006] The adhesive preparation mechanism includes a guiding component and an adhesive feeding component. The guiding component forms a guiding gap for accommodating the adhesive tape, and the adhesive feeding component is used to hold the adhesive tape in the guiding gap and to deliver the held adhesive tape to the adhesive application mechanism.

[0007] The guiding assembly includes a guide plate and a guide rod, with the guiding gap formed between the guide plate and the guide rod; the adhesive feeding assembly includes a pressure seat and an adhesive suction platform movable relative to the pressure seat, the pressure seat having a toothed groove, and the guide rod partially housed in the toothed groove, so that the adhesive tape can reach the pressure seat when accommodated in the guiding gap; the adhesive suction platform is used to suction the adhesive tape that reaches the pressure seat when moving towards the pressure seat, and to transport the suctioned adhesive tape to the adhesive applicator.

[0008] The adhesive preparation mechanism further includes a positioning roller and an adhesive clamping assembly. The adhesive clamping assembly includes an adhesive clamping base, an adhesive clamping cylinder, and a clamping block. The adhesive clamping cylinder is mounted on the adhesive clamping base, and the clamping block is mounted on the drive end of the adhesive clamping cylinder. The clamping block is used to cooperate with the positioning roller under the drive of the adhesive clamping cylinder to clamp the adhesive tape.

[0009] The adhesive preparation mechanism further includes a first driving assembly, which includes a first slide block that can slide to approach or move away from the adhesive application mechanism and a first driving member for driving the first slide block. The adhesive clamping fixing seat is mounted on the first slide block.

[0010] The adhesive preparation mechanism further includes an adhesive cutting assembly for cutting the adhesive tape. The adhesive cutting assembly includes an adhesive cutting fixing seat, an adhesive cutting cylinder, a cutting blade seat, and a cutting blade. The adhesive cutting fixing seat is mounted on the first slide, the adhesive cutting cylinder is mounted on the adhesive cutting fixing seat, the cutting blade seat is mounted on the drive end of the adhesive cutting cylinder, and the cutting blade is mounted on the cutting blade seat.

[0011] The glue preparation mechanism further includes a glue dispensing adjustment component, which includes an adjustment screw for limiting the movement distance of the first slide in a preset direction.

[0012] The glue preparation mechanism further includes a second driving assembly, which includes a second slide block that can slide to approach or move away from the glue application mechanism and a second driving member for driving the second slide block; the glue feeding assembly further includes a glue suction cylinder seat and a glue suction cylinder for driving the glue suction platform to move, the glue suction cylinder being disposed on the glue suction cylinder seat and the glue suction cylinder seat being disposed on the second slide block.

[0013] The adhesive application mechanism includes an adhesive application roller seat and an adhesive application roller rotatably mounted on the adhesive application roller seat for applying tape to the battery cell. The adhesive application mechanism also includes an adhesive application mounting base, an adhesive application guide rod, and a piston rod. The adhesive application guide rod is slidably mounted in the adhesive application mounting base, and the adhesive application roller seat is mounted at one end of the adhesive application guide rod. An air chamber is formed in the adhesive application mounting base, and the air chamber is sealed with compressed gas of adjustable pressure. One end of the piston rod is connected to the adhesive application roller seat, and the other end is slidably mounted in the air chamber to provide cushioning when the adhesive application roller abuts against the battery cell.

[0014] The adhesive applicator further includes a rotating support base, a second motor, and a second motor transmission assembly. The rotating support base is mounted on the other end of the adhesive applicator guide rod, and the second motor is mounted on the rotating support base and is connected to the adhesive applicator roller via the second motor transmission assembly.

[0015] The adhesive roller includes an adsorption wall for adsorbing the adhesive tape. When the adsorption wall adsorbs the adhesive tape and the adhesive roller moves to abut against the battery cell, the second motor drives the adhesive roller to rotate through the second motor transmission assembly, so that the adhesive tape adsorbed by the adsorption wall rotates to a predetermined sealing position to seal the end of the battery cell.

[0016] The adhesive roller has an internal cavity, and the adsorption wall has multiple adsorption holes that communicate with the internal cavity. The adhesive roller also has a vent hole that communicates with the internal cavity and can be used to evacuate the gas in the internal cavity.

[0017] The second motor transmission assembly includes a driving gear, a driven gear, a rotating shaft, a driving wheel, and a driven wheel. The driving gear is located at the drive end of the second motor. The rotating shaft is rotatably mounted on the rotating support. The driven gear is located at one end of the rotating shaft and meshes with the driving gear. The driving wheel is located at the other end of the rotating shaft. The driven wheel is located at one end of the adhesive roller and is connected to the driving wheel in a transmission manner.

[0018] The adhesive application mechanism further includes an adhesive application drive assembly for driving the adhesive application mounting base to perform linear translational motion; the adhesive application drive assembly includes a first motor, a first lead screw, a first lead screw nut, and an adhesive application drive connection assembly; the drive end of the first motor is connected to the first lead screw, the first lead screw nut is sleeved on the first lead screw, and the first lead screw is used to convert the rotation of the drive end of the first motor into the linear movement of the first lead screw nut; the adhesive application drive connection assembly connects the adhesive application mounting base to the first lead screw nut.

[0019] The adhesive application mechanism includes an adhesive application roller for applying the tape to the battery cell, and the pressing mechanism includes a pressing roller for pressing against the battery cell. During the adhesive application operation, the adhesive application mechanism drives the adhesive application roller to generate a first pressure toward the needle winding mechanism, and the pressing mechanism drives the pressing roller to generate a second pressure toward the needle winding mechanism. The first pressure and the second pressure have different directions and act simultaneously on the needle winding mechanism and the battery cell.

[0020] The pressing mechanism further includes a pressing drive assembly for driving the pressing roller; the pressing drive assembly includes a pressing motor, a second lead screw, a second lead screw nut, and a pressing drive connection assembly; the driving end of the pressing motor is connected to the second lead screw, the second lead screw nut is sleeved on the second lead screw, and the second lead screw is used to convert the rotation of the driving end of the pressing motor into the linear movement of the second lead screw nut; the pressing drive connection assembly is used to drive the pressing motor to the pressing roller, so that the pressing motor can drive the pressing roller to move.

[0021] The pressing mechanism further includes a pressing cylinder, a pressing roller bracket, and a pressing roller seat; the pressing cylinder is used to drive the pressing roller bracket to move; the pressing roller seat is disposed on the pressing roller bracket, and the pressing roller is rotatably disposed on the pressing roller seat; the pressing cylinder is connected to the pressing drive connection assembly, so that the pressing cylinder can move under the drive of the pressing motor.

[0022] The adhesive applicator further includes a mounting plate, the adhesive preparation mechanism is mounted on a first surface of the mounting plate, and the adhesive application mechanism and the pressing mechanism are mounted on a second surface of the mounting plate opposite to the first surface.

[0023] The mounting plate has a first through hole and a second through hole that penetrate its first and second surfaces. The pressing mechanism partially passes through the first through hole and extends out from the first surface, and the adhesive applicator partially passes through the second through hole and extends out from the first surface. The first through hole is also used for the needle winding mechanism to pass through.

[0024] Compared with existing adhesive applicators, the adhesive applicator provided in this application according to the above-mentioned preferred embodiment can achieve the following multiple beneficial effects: (1) When taking adhesive, the method of using a guide plate and a guide rod in combination can prevent the tape from warping and wrinkling; the method of using a pressure seat with a toothed groove for partially accommodating the guide rod in combination with the adhesive suction platform can provide effective support for the tape, making it easier for the adhesive suction platform to pick up the tape, which can effectively improve the operation accuracy. (2) The method of using a pressing mechanism and an adhesive applicator in combination, when the adhesive applicator presses against the battery cell during the adhesive applicator operation, can generate a first pressure toward the needle winding mechanism. At the same time, the pressing cylinder drives the pressing roller to generate a second pressure toward the needle winding mechanism. The first pressure and the second pressure act on the battery cell and the needle winding mechanism that winds the battery cell from different directions (preferably opposite directions) at the same time, so that the pressure applied to the needle winding mechanism can be balanced, which can effectively prevent the needle winding mechanism from being impacted or breaking under unidirectional pressure; at the same time, a constant pressure can be applied according to the above method to ensure that the battery cell wound on the needle winding mechanism forms a stable tension, which further improves the winding quality and adhesive applicator quality. (3) The layout of the adhesive application mechanism, adhesive preparation mechanism and pressure mechanism makes the overall structure more compact. The adhesive application mechanism adopts a linear movement mode, which is more reasonable than the swing adhesive application device layout in the traditional adhesive application device, saves space, and is conducive to further improving the accuracy of adhesive application operation and reducing the difficulty of operation. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of an adhesive applicator provided in a preferred embodiment of this application.

[0026] Figure 2 yes Figure 1 The diagram shows the structure of the adhesive preparation mechanism in the adhesive applicator.

[0027] Figure 3 yes Figure 2 The diagram shows the assembly of the glue preparation drive assembly, glue delivery assembly, and glue cutting assembly in the glue preparation mechanism.

[0028] Figure 4 yes Figure 2 An enlarged schematic diagram of part IV in the diagram.

[0029] Figure 5 yes Figure 1 The diagram shows the structure of the adhesive application mechanism in the adhesive application device.

[0030] Figure 6 yes Figure 5 The diagram shows the assembly of the adhesive application components in the adhesive application mechanism.

[0031] Figure 7 yes Figure 6 The diagram shows a cross-sectional view of the adhesive bonding assembly.

[0032] Figure 8 yes Figure 1 The diagram shows the structure of the pressing mechanism in the adhesive applicator.

[0033] Figure 9 yes Figure 8 The diagram shows the structure of the pressure-reducing mechanism from another perspective. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] Figure 1This is a schematic diagram of a preferred embodiment of an adhesive applicator 1 provided in this application. The adhesive applicator 1 is applicable to battery cell winding equipment, particularly for winding small and micro battery cells (such as the battery cells of Bluetooth headsets, whose diameter is typically no greater than 3 mm). The adhesive applicator 1 may include an adhesive preparation mechanism 10, an adhesive application mechanism 20, and a pressing mechanism 30. The adhesive preparation mechanism 10 is used to provide adhesive tape to the adhesive application mechanism 20. The adhesive application mechanism 20 is used to perform the adhesive application operation, that is, to apply the adhesive tape provided by the adhesive preparation mechanism 10 to a preset position on the battery cell to seal the end of the battery cell winding material (such as positive and negative electrode sheets or separators). The pressing mechanism 30 is used to hold the battery cell during the adhesive application operation of the adhesive application mechanism 20 to ensure that the battery cell maintains a stable position and sufficient tension, thereby improving the battery cell winding quality and adhesive application quality.

[0038] Furthermore, to facilitate the assembly of the glue preparation mechanism 10, the glue application mechanism 20, and the pressing mechanism 30 together, the glue application device 1 may further include a mounting plate 40, on which the glue preparation mechanism 10, the glue application mechanism 20, and the pressing mechanism 30 can all be mounted. In this embodiment, to optimize the mounting layout on the mounting plate 40, it is preferable to mount the glue preparation mechanism 10 on the first surface of the mounting plate 40 (e.g., according to...). Figure 1 From a perspective of the paper (the surface facing the paper), the adhesive applicator 20 and the pressing mechanism 30 are mounted on the second surface of the mounting plate 40 opposite to the first surface (e.g., according to...). Figure 1 From a perspective shown in the figure, the surface facing away from the paper is the mounting plate 40. A first through-hole 41 and a second through-hole 42 are provided on the mounting plate 40, penetrating its first and second surfaces. A pressing mechanism 30 partially passes through the first through-hole 41 and extends from the first surface of the mounting plate 40. An adhesive applicator 20 partially passes through the second through-hole 42 and extends from the first surface of the mounting plate 40, so as to cooperate with the adhesive preparation mechanism 10. The winding needle mechanism 50 of the battery cell winding equipment and the battery cell (not shown) wound thereon can also pass through the first through-hole 41.

[0039] Please see Figure 2 , Figure 3 and Figure 4 The glue preparation mechanism 10 may include an unwinding assembly 11, a first drive assembly 12, a glue clamping assembly 13, a glue cutting assembly 14, a second drive assembly 15, a glue feeding assembly 16, a guide assembly 17, and a buffer assembly 18.

[0040] The unwinding assembly 11 may include an unwinding shaft 111 and positioning rollers 112. The unwinding shaft 111 is rotatably mounted on the mounting plate 40. A roll of adhesive tape 60 for supplying the tape can be sleeved on the unwinding shaft 111, from which the adhesive tape 61 required for the application operation can be unwound. Multiple positioning rollers 112 may be rotatably mounted at multiple preset positions on the mounting plate 40. The tape 61 can be wound around the positioning rollers 112 to maintain appropriate tension and change its transmission direction as needed. The end of the tape 61 can be stretched by power provided by the first drive assembly 12 and the clamping assembly 13, so that the tape 61 is continuously conveyed to the working position.

[0041] The first drive assembly 12 may include a first drive fixing seat 120, a first slide block 121, a first slider 122, a first slide rail 123, a glue-preparing drive connecting block 124, and a first drive member 125. Preferably, the first slide block 121 is fixedly disposed on the first slider 122, the first slider 122 is slidably disposed on the first slide rail 123, the first slide rail 123 is fixedly disposed on the first drive fixing seat 120, and the first drive fixing seat 120 has a first drive through hole (not shown in the figure) through which the glue-preparing drive connecting block 124 can pass. The first slide block 121 is connected to the drive end of the first drive member 125 through the glue-preparing drive connecting block 124 passing through the first drive through hole, so that it can slide together with the first slider 122 along the first slide rail 123 under the drive of the first drive member 125. In this embodiment, the first driving component 125 may include a glue-pulling cylinder fixed on the first driving fixing seat 120 via a glue-pulling cylinder seat 125a; in other embodiments, the first driving component 125 may include a motor, a lead screw, a lead screw nut, and a lead screw drive block. The motor drive end is connected to the lead screw, the lead screw nut is sleeved on the lead screw, and the lead screw nut is connected to the first slide block via the lead screw drive block. When the motor starts, according to the existing lead screw working principle, the rotation of the motor can be converted into linear movement of the lead screw nut, which drives the first slide block 121 and the first slider 122 to slide together along the first slide rail 123.

[0042] The adhesive clamping assembly 13 includes an adhesive clamping fixing seat 131, an adhesive clamping cylinder 132, and a clamping block 133. The adhesive clamping fixing seat 131 is disposed on the first slide 121 and can slide together with the first slide 121. The adhesive clamping cylinder 132 is disposed on the adhesive clamping fixing seat 131. The clamping block 133 is disposed on the driving end of the adhesive clamping cylinder 132 and corresponds to the position of the nearest positioning roller 112. The adhesive clamping cylinder 132 can drive the clamping block 133 to cooperate with the positioning roller 112 to clamp the tape 61.

[0043] The glue cutting assembly 14 includes a glue cutting fixing seat 141, a glue cutting cylinder 142, a cutter holder 143, and a cutter 144. The glue cutting fixing seat 141 is disposed on the first slide 121 and can slide together with the first slide 121. The glue cutting cylinder 142 is disposed on the glue cutting fixing seat 141. The cutter holder 143 is disposed on the drive end of the glue cutting cylinder 142. The cutter 144 is mounted on the cutter holder 143.

[0044] The second drive assembly 15 may include a second drive fixing base 150, a second slide block 151, a second slider 152, a second slide rail 153, and a second drive member 154. Preferably, the second slide block 151 is fixedly disposed on the second slider 152, the second slider 152 is slidably disposed on the second slide rail 153, the second slide rail 153 is fixedly disposed on the second drive fixing base 150, and the second slide block 151 is connected to the drive end of the second drive member 154, so that it can slide together with the second slider 152 along the second slide rail 153 under the drive of the second drive member 154. In this embodiment, the second drive member 154 may include a glue-feeding cylinder fixed on the second drive fixing base 150 by a glue-feeding cylinder seat 154a. More preferably, in this embodiment, the second drive fixing base 150 may be assembled together with the first drive fixing base 120 or manufactured as a single piece.

[0045] The glue feeding assembly 16 may include a suction cylinder seat 160, a suction cylinder 161, a suction platform 162, a platform guide rod 163, and a pressure seat 164. The suction cylinder seat 160 is preferably fixedly mounted on the second slide block 151 and can slide along the second slide rail 153 together with the second slide block 151. The suction cylinder 161 is mounted on the suction cylinder seat 160, and the suction platform 162 is mounted on the drive end of the suction cylinder 161. The suction cylinder 161 can drive the suction platform 162 to move in a direction perpendicular to the tape 61. The platform guide rod 163 is slidably mounted on the suction cylinder seat 160, and one end of the platform guide rod 163 is connected to the suction platform 162, thus improving the stability of the suction platform 162's movement. The platform guide rod 163 is preferably provided with a platform guide rod fixing block 163a at the end away from the adhesive suction platform 162 to limit the movement stroke of the adhesive suction platform 162. The pressure seat 164 is preferably provided on the second drive fixing seat 150 at a position corresponding to the adhesive suction platform 162. The side of the pressure seat 164 facing the tape 61 during operation is provided with a toothed groove 164a for cooperating with the guide assembly 17.

[0046] The guide assembly 17 may include a guide plate seat 171, a guide rod seat 172, a guide plate 173, and a plurality of guide rods 174. The guide plate seat 171 and the guide rod seat 172 are preferably both disposed on the first slide 121. The guide plate 173 is disposed on the guide plate seat 171. The plurality of guide rods 174 are arranged side-by-side on the guide rod seat 172, and the shape and position of the plurality of guide rods 174 preferably correspond to the toothed grooves 164a of the pressure seat 164, and can be partially received in the toothed grooves 164a respectively. A guide gap 170 is formed between the guide plate 173 and the plurality of guide rods 174. This guide gap 170 preferably aligns with the gap between the clamping block 133 and the corresponding positioning roller 112. During operation, the conveyor belt 61 is accommodated in the guide gap 170 without warping or wrinkling. The surface of the guide plate 173 facing the guide rod 174 is preferably formed into a wavy or toothed undulating shape, preferably with the adhesive side of the tape 61 facing the guide plate 173. This way, the undulating shape on the surface of the guide plate 173 can minimize the contact area between the guide plate and the adhesive side of the tape 61, preventing the tape 61 from sticking to the guide plate 173. More preferably, the guide assembly 17 may also include an air rod fixing block 175 and an air rod 176. The air rod fixing block 175 is fixedly disposed on the guide plate seat 171, and the air rod 176 is mounted on the air rod fixing block 175. During operation, the air rod 176 can be used to blow airflow onto the tape 61 to properly press the tape 61, which can prevent the end of the tape 61 from warping and causing incorrect adhesion, such as sticking to the pressure seat 164.

[0047] The buffer assembly 18 is preferably arranged between the unwinding assembly 11 and the clamping assembly 13, and can be used to temporarily store the tape 61 unwound from the unwinding assembly 11. The buffer assembly 18 may include a buffer cylinder seat 180, a buffer cylinder 181, a buffer slider 182, a buffer slide rail 183, and a buffer guide roller 184. The buffer cylinder seat 180 and the buffer slide rail 183 are preferably fixedly mounted on the mounting plate 40. The buffer cylinder 181 is mounted on the buffer cylinder seat 180, and the buffer slider 182 is slidably mounted on the buffer slide rail 183 and connected to the drive end of the buffer cylinder 181, so that it can slide along the buffer slide rail 183 under the drive of the buffer cylinder 181. The buffer guide roller 184 is mounted on the buffer slider 182, and the tape 61 can be wound on the buffer guide roller 184. When a section of tape 61 needs to be temporarily stored, the buffer cylinder 181 can drive the buffer slider 182 to slide along the buffer slide rail 183, thereby causing the buffer roller 184 to move in the first direction (e.g., according to...). Figure 1 and Figure 2 The perspective is downward movement. When tape 61 is used, the movement of tape 61 can pull the buffer slider 182 to slide along the buffer slide rail 183, thereby causing the buffer roller 184 to move in a second direction opposite to the first direction (e.g., according to...). Figure 1 and Figure 2 The perspective is moving upwards.

[0048] In addition, to adjust the length of the cut tape 61, the adhesive preparation mechanism 10 may also include an adhesive dispensing adjustment assembly 19. This assembly 19 may include an adjusting screw seat 191 and an adjusting screw 192. The adjusting screw seat 191 may be fixedly mounted on the first drive fixing seat 120 or the second drive fixing seat 150. The adjusting screw 192 is mounted on the adjusting screw seat 191 and aligned with the first slide block 121, spaced a predetermined distance from the first slide block 121. Thus, the adjusting screw 192 can adjust the movement distance of the first slide block 121 in a preset direction, thereby adjusting the length of the cut tape 61.

[0049] Please see Figure 5 , Figure 6 and Figure 7 The adhesive application mechanism 20 may include an adhesive application drive assembly 21 and an adhesive application assembly 22. The adhesive application drive assembly 21 drives the adhesive application assembly 22 to move back and forth between the adhesive dispensing position and the adhesive application position. At the adhesive dispensing position, the adhesive application assembly 22 can pick up adhesive tape 61 from the adhesive preparation mechanism 10; at the adhesive application position, the adhesive application assembly 22 can apply adhesive to the tail end of the battery cell wound on the needle winding mechanism 50. The distance between the adhesive dispensing position and the needle winding mechanism 50 should be greater than the distance between the adhesive application position and the needle winding mechanism 50. In this embodiment, the adhesive application drive assembly 21 can drive the adhesive application assembly 22 to make a linear translational movement towards the needle winding mechanism 50, moving the adhesive application assembly 22 from the adhesive dispensing position to the adhesive application position. Alternatively, it can drive the adhesive application assembly 22 to make a linear translational movement away from the needle winding mechanism 50, moving the adhesive application assembly 22 back from the adhesive application position to the adhesive dispensing position.

[0050] The adhesive application drive assembly 21 includes an adhesive application base plate 210, a first motor mount 211, a first motor 212, a first coupling 213, a first lead screw 214, a first lead screw nut 215, a first lead screw support 216, an adhesive application drive connection assembly 217, and an adhesive application drive sliding assembly 218. The adhesive application base plate 210 can be fixed on the mounting plate 40. The first motor mount 211 and the first lead screw support 216 are preferably both fixedly mounted on the adhesive application base plate 210. The first motor 212 is mounted on the first motor mount 211, and the first lead screw 214 is rotatably mounted on the first lead screw support 216. The drive end of the first motor 212 is connected to the first lead screw 214 through the first coupling 213, and the first lead screw nut 215 is sleeved on the first lead screw 214. Based on the existing working principle of the lead screw, when the first motor 212 is started, the rotation of its driving end can be converted into the linear movement of the first lead screw nut 215 along the axial direction of the first lead screw 214 through the first lead screw 214.

[0051] The adhesive application drive connection assembly 217 includes an adhesive application drive fixing block 217a, a first connecting block 217b, and a second connecting block 217c. The adhesive application drive fixing block 217a is fixedly connected to a first lead screw nut 215, and the first connecting block 217b is connected to the adhesive application drive fixing block 217a. The first connecting block 217b is connected to the adhesive application assembly 22 through the second connecting block 217c. Thus, when the first motor 212 starts, the adhesive application assembly 22 can be moved by the first lead screw 214, the first lead screw nut 215, and the adhesive application drive connection assembly 217. The adhesive application drive sliding assembly 218 includes an adhesive application drive slider 218a and an adhesive application drive slide rail 218b. The second connecting block 217c can be disposed on the adhesive application drive slider 218a, and the adhesive application drive slider 218a is slidably disposed on the adhesive application drive slide rail 218b. The adhesive application drive slide rail 218b is disposed on the base plate. The adhesive application drive slider 218a and adhesive application drive slide rail 218b can provide support for the adhesive application drive connection assembly 217 during movement, which helps to improve the movement stability of the adhesive application assembly 22 when it moves.

[0052] The adhesive application assembly 22 may include an adhesive application mounting base 220, an adhesive application guide sleeve 221, an adhesive application guide rod 222, a rotary support base 223, a second motor 224, a second motor transmission assembly 225, an adhesive application roller base 226, and an adhesive application roller 227. The adhesive application mounting base 220 is connected to the second connecting block 217c, thereby allowing it to move under the drive of the adhesive application drive assembly 21. There can be multiple adhesive application guide sleeves 221 and adhesive application guide rods 222. The adhesive application guide sleeves 221 are installed inside the adhesive application mounting base 220, and each adhesive application guide rod 222 is slidably installed within its respective adhesive application guide sleeve 221. Both ends of each adhesive application guide rod 222 can extend out of the adhesive application mounting base 220. One end of each adhesive guide rod 222 is connected to the rotating support 223, and the other end is connected to the adhesive roller seat 226, so that both the rotating support 223 and the adhesive roller seat 226 are movably mounted on the adhesive mounting base 220.

[0053] The second motor 224 is mounted on the rotating support 223. The second motor transmission assembly 225 may include a driving gear 225a, a driven gear 225b, a rotating shaft 225c, a driving pulley 225d, a driven pulley 225e, and a transmission belt (not shown in the figure). The driving gear 225a is located at the drive end of the second motor 224 and can rotate under the drive of the second motor 224. The rotating shaft 225c is preferably rotatably mounted on the rotating support 223 via a first bearing 225f. The driven gear 225b is located at one end of the rotating shaft 225c and meshes with the driving gear 225a. The driving pulley 225d is located at the other end of the rotating shaft 225c, so that the rotation of the driving gear 225a can drive the driving pulley 225d to rotate through the driven gear 225b and the rotating shaft 225c. The adhesive roller seat 226 is connected to the end of the adhesive guide rod 222. The adhesive roller 227 is preferably rotatably mounted on the adhesive roller seat 226 via a second bearing 224c. The driven wheel 225e is located at one end of the adhesive roller 227 and is connected to the driving wheel 225d via a transmission belt, so that the second motor 224 can drive the adhesive roller 227 to rotate via the second motor transmission assembly 225. The adhesive roller 227 has an inner cavity 227a, which is located close to one side of the adhesive roller 227, so that the adhesive roller 227 forms a thin adsorption wall 227b on this side. The adsorption wall 227b has a plurality of adsorption holes 227c communicating with the inner cavity 227a. One end of the adhesive roller 227 is also provided with a vent 227d that communicates with the inner cavity 227a. The outlet of the vent 227d is provided with an air pipe connector 227e, which can be used to connect an external air extraction device to evacuate the gas in the inner cavity 227a, thereby creating a negative pressure in the inner cavity 227a and the adsorption hole 227c, so that the adsorption wall 227b can use the negative pressure of the adsorption hole 227c to suck up the tape 61.

[0054] More preferably, the adhesive application assembly 22 may further include a piston rod 228, one end of which is fixedly connected to the adhesive application roller seat 226, and the other end is slidably mounted in an air chamber 220a opened in the adhesive application mounting base 220. A sealing ring 228b may be fitted on the piston rod 228 to ensure that the piston rod 228 is tightly inserted into the air chamber 220a. The piston rod 228 may also be slidably disposed in a guide member 228a, which may be connected to the adhesive application mounting base 220. The air chamber 220a may contain compressed gas with adjustable pressure. Thus, compressed air can be provided by existing technical means, such as connecting an air source to the air chamber 220a. Furthermore, the air source may be connected to the air chamber 220a through, for example, an existing pressure regulating valve, to adjust the pressure of the compressed gas, thereby adjusting the pressure applied to the battery cell by the adhesive application roller 227 during the adhesive application operation. The sealing ring 228b can prevent the compressed gas from escaping.

[0055] Please see Figure 8 and Figure 9 The pressing mechanism 30 includes a pressing drive assembly 31 and a pressing assembly 32. The pressing drive assembly 31 can be used to drive the pressing assembly 32 to move relative to the winding mechanism 50. The pressing roller 325 of the pressing assembly 32 (described below) can apply constant pressure against the surface of the battery cell wound on the winding mechanism 50. By applying constant pressure to the battery cell in this way, the tension of the battery cell can be kept stable, so that the winding material of the battery cell will not loosen, thus improving the winding quality and adhesive application quality at the end of the battery cell winding process.

[0056] The pressing drive assembly 31 may include a pressing base plate 310, a pressing motor base 311, a pressing motor 312, a second coupling 313, a second lead screw 314, a second lead screw nut 315, a second lead screw support 316, and a pressing drive connection assembly 317. The pressing base plate 310 may be fixed on the mounting plate 40. The pressing motor base 311 and the second lead screw support 316 are preferably both fixedly mounted on the pressing base plate 310. The pressing motor 312 is mounted on the pressing motor base 311. The second lead screw 314 is rotatably mounted on the second lead screw support 316. The drive end of the pressing motor 312 is connected to the second lead screw 314 through the second coupling 313. The second lead screw nut 315 is sleeved on the second lead screw 314. Based on the existing working principle of the lead screw, when the pressing motor 312 is started, the rotation of its driving end can be converted into linear movement of the second lead screw nut 315 along the axial direction of the second lead screw 314 through the second lead screw 314. The pressing drive connection assembly 317 includes a pressing fixing block 317a and a pressing connecting block 317b. The pressing fixing block 317a is fixedly connected to the second lead screw nut 315, and the pressing connecting block 317b connects the pressing assembly 32 to the pressing fixing block 317a, so that the pressing motor 312 can drive the pressing roller 325 (described below) of the pressing assembly 32 to move toward or away from the needle winding mechanism 50 through the second lead screw 314, the second lead screw nut 315, and the pressing connecting block 317b, preferably along a straight line.

[0057] The pressing assembly 32 may include a pressing cylinder seat 320, a pressing cylinder 321, a pressing cylinder connecting block 321a, a pressing cylinder sliding assembly 322, a pressing roller bracket 323, a pressing roller seat 324, a pressing roller 325, and a bracket sliding assembly 326. The pressing cylinder seat 320 is connected to the pressing connecting block 317b and can move under the drive of the pressing connecting block 317b. The pressing cylinder 321 can be fixed on the pressing cylinder seat 320. The pressing cylinder sliding assembly 322 may include a pressing cylinder slider 322a and a pressing cylinder slide rail 322b. The pressing cylinder seat 320 can be disposed on the pressing cylinder slider 322a, the pressing cylinder slider 322a is slidably disposed on the pressing cylinder slide rail 322b, and the pressing cylinder slide rail 322b is fixedly disposed on the pressing base plate 310. In this way, when the pressure cylinder seat 320 moves, it can be supported and guided by the pressure cylinder sliding assembly 322, which helps to improve the stability and accuracy of the movement. The pressure cylinder connecting block 321a is set on the driving end of the pressure cylinder 321, and the pressure roller bracket 323 is connected to the driving end of the pressure cylinder 321 through the pressure cylinder connecting block 321a, so that it can move under the drive of the pressure cylinder 321. The pressure roller seat 324 is fixedly set on the pressure roller bracket 323, and the pressure roller 325 is rotatably set on the pressure roller seat 324, so that the pressure cylinder 321 can drive the pressure roller 325 to move through the pressure roller bracket 323 and the pressure roller seat 324. The support sliding assembly 326 may include a support slider 326a and a support slide rail 326b. The pressure roller support 323 may be disposed on the support slider 326a, the support slider 326a is slidably disposed on the support slide rail 326b, and the support slide rail 326b is fixedly disposed on the pressure base plate 310. In this way, when the pressure roller support 323 moves, it can be supported and guided by the support sliding assembly 326, which helps to improve the stability and accuracy of the movement.

[0058] When using the adhesive applicator 1, it can be performed according to, for example, the above-described procedure. Figure 1 The adhesive preparation mechanism 10, adhesive application mechanism 20, pressing mechanism 30, and needle winding mechanism 50 are arranged as shown. The winding material for manufacturing battery cells can be wound on the needle winding mechanism 50 in an existing manner to produce a wound battery cell.

[0059] When the winding process of the battery cell on the needle winding mechanism 50 is about to be completed, the adhesive applicator 1 can be used to apply adhesive to the battery cell wound on the needle winding mechanism 50. Specifically, the adhesive preparation mechanism 10 can be used first to prepare the adhesive. In the initial state of this adhesive preparation operation, the tape 61 released from the tape roll 60 mounted on the unwinding assembly 11 is pulled to the clamping assembly 13 via the buffer assembly 18. The drive end of the clamping cylinder 132 is extended, and the clamping block 133 cooperates with the nearest positioning roller 112 to clamp the tape 61. At this time, the adhesive suction platform 162 and the pressure seat 164 are opposite each other, the drive ends of the first drive member 125 (e.g., the adhesive pulling cylinder) and the second drive member 154 (e.g., the adhesive feeding cylinder) are both in the retracted state, and the first slide 121 and the second slide 151 are both in a position relatively far away from the adhesive applicator 20.

[0060] Next, the drive end of the first drive member 125 is extended, driving the first slide block 121 to move towards the adhesive applicator 20. The clamping block 133, in conjunction with the positioning roller 112, pulls the tape 61 towards the adhesive applicator 20. When the guide rod 174 is inserted into the toothed groove 164a of the pressure seat 164, the end of the tape 61 is positioned on the lower surface of the pressure seat 164. Simultaneously, the air blower 176 can blow air onto the tape 61 to properly press it down, preventing the end of the tape 61 from warping and sticking to the pressure seat 164. Since the guide rod 174 is partially housed within the toothed groove 164a of the pressure seat 164, the tape 61 will be guided along the guide rod 174 to reach the pressure seat 164. The suction cylinder 161 drives the suction platform 162 to move towards the pressure seat 164, pressing down the tape 61 that has reached the pressure seat 164.

[0061] Then, the drive end of the clamping cylinder 132 is retracted, causing the clamping block 133 to leave the positioning roller 112 and release the tape 61; the drive end of the first drive member 125 is retracted, driving the first slide block 121 to move away from the adhesive applicator 20; the drive end of the clamping cylinder 132 is extended again, using the clamping block 133 in conjunction with the positioning roller 112 to clamp the tape 61 again; the cutting cylinder 142 is controlled to drive the cutter 144 to extend and cut the tape 61.

[0062] Finally, the adhesive suction platform 162 is used to suction the cut tape 61. The adhesive suction cylinder 161 is controlled to drive the adhesive suction platform 162 to disengage from the pressure seat 164. The drive end of the second drive member 154 is controlled to extend, driving the second slide 151 to move towards the adhesive applicator 20 and transport the tape 61 to the applicator roller 227 of the applicator 20. The adhesive suction cylinder 161 drives the adhesive suction platform 162 to move towards the applicator roller 227 and deliver the tape 61 onto the applicator roller 227. At this time, the adhesive suction platform 162 is controlled to release the suction state, and at the same time, the gas in the inner cavity 227a of the applicator roller 227 is evacuated from the air pipe joint 227e. The applicator roller 227 is controlled to suction the tape 61 on its suction wall 227b. Thus, the tape 61 is transferred to the applicator roller 227, and the adhesive preparation operation is completed. At this time, the suction cylinder 161 can be controlled to drive the suction platform 162 to disengage from the adhesive roller 227, and the drive end of the second drive component 154 can be controlled to retract.

[0063] After the adhesive roller 227 picks up the adhesive tape 61, the adhesive application drive assembly 21 drives the adhesive application mounting base 220 of the adhesive application assembly 22, causing the adhesive application assembly 22 to move towards the needle winding mechanism 50. This allows the adhesive roller 227 to abut against the battery cell wound on the needle winding mechanism 50, thereby generating a first pressure towards the needle winding mechanism 50. This applies appropriate force to press the battery cell down to a certain extent, preventing hard impact on the needle winding mechanism 50 and damage to it. Simultaneously, the pressing cylinder 321 of the pressing mechanism 30 can drive the pressing roller 325 to hold the battery cell. Specifically, the pressing method can be to control the drive end of the pressing cylinder 321 to extend, and use the pressing drive assembly 31 to drive the pressing roller 325 of the pressing assembly 32 to move towards the needle winding mechanism 50, so that the pressing roller 325 contacts the surface of the battery cell wound on the needle winding mechanism 50. At this time, the pressure cylinder 321 can act as a buffer, applying a constant second pressure towards the needle winding to the battery cell wound on the needle winding mechanism 50 via the pressure roller 325. The first pressure and the second pressure are in different directions, preferably opposite, so that the pressure applied to the needle winding mechanism 50 can be balanced, effectively preventing the needle winding mechanism 50 from being impacted or breaking under unidirectional pressure.

[0064] After the battery cell is held and stabilized by the adhesive roller 227 and the pressure roller 325, the second motor 224 drives the adhesive roller 227 to rotate around its own axis, controlling the rotation of the adhesive roller 227 to match the rotation of the battery cell; when the battery cell rotates to a certain angle, the adhesive tape 61 on the adhesive roller 227 rotates to the predetermined sealing position and is attached to the end of the battery cell winding material, thereby achieving the sealing of the end of the battery cell.

[0065] Compared with existing adhesive applicators, the adhesive applicator 1 provided in accordance with the above-described preferred embodiment can achieve the following advantages: (1) When taking adhesive, the guide plate 173 and the guide rod 174 are used in combination to prevent the tape 61 from warping and wrinkling; the pressure seat 164 with a toothed groove 164a for partially accommodating the guide rod 174 and the adhesive suction platform 162 are used in combination to provide effective support for the tape 61, making it easier for the adhesive suction platform 162 to pick up the tape 61, which can effectively improve the operation accuracy. (2) The pressing mechanism 30 and the adhesive applicator 20 work together. When the adhesive applicator 20 presses against the battery cell during the adhesive applicator operation, it can generate a first pressure toward the winding needle mechanism 50. At the same time, the pressing cylinder 321 drives the pressing roller 325 to generate a second pressure toward the winding needle mechanism 50. The first pressure and the second pressure act on the battery cell and the winding needle mechanism 50 that winds the battery cell from different directions (preferably opposite directions) at the same time, so that the pressure applied to the winding needle mechanism 50 can be balanced, which can effectively prevent the winding needle mechanism 50 from being impacted or breaking under unidirectional pressure. At the same time, a constant pressure can be applied according to the above method to ensure that the battery cell wound on the winding needle mechanism 50 forms a stable tension, which further improves the winding quality and adhesive applicator quality. (3) The layout of the adhesive applicator 20, the adhesive preparation mechanism 10 and the pressing mechanism 30 makes the overall structure more compact. The adhesive applicator 20 adopts a linear movement mode, which is more reasonable than the swing-type adhesive applicator layout in the traditional adhesive applicator, saves space, and is conducive to further improving the accuracy of the adhesive applicator operation and reducing the difficulty of operation.

[0066] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An adhesive applicator for applying adhesive to battery cells wound on a needle winding mechanism, characterized in that, The adhesive applicator includes an adhesive preparation mechanism, an adhesive application mechanism, and a pressing mechanism; the adhesive preparation mechanism provides adhesive tape to the adhesive application mechanism; the adhesive application mechanism applies the adhesive tape to a preset position on the battery cell; and the pressing mechanism holds the battery cell in place when the adhesive application mechanism is in operation. The adhesive applicator roller of the adhesive applicator mechanism and the pressing roller of the pressing mechanism are located on opposite sides of the needle winding mechanism, and the adhesive applicator roller includes an adsorption wall; The adhesive preparation mechanism includes a guiding component and an adhesive feeding component. The guiding component forms a guiding gap for accommodating the adhesive tape, and the adhesive feeding component is used to hold the adhesive tape in the guiding gap and to deliver the held adhesive tape to the adhesive application mechanism.

2. The adhesive applicator as described in claim 1, characterized in that, The guiding assembly includes a guide plate and a guide rod, forming the guiding gap between the guide plate and the guide rod; the adhesive feeding assembly includes a pressure seat and an adhesive suction platform that moves relative to the pressure seat, the pressure seat having a toothed groove, and the guide rod being partially received in the toothed groove, so that the adhesive tape can reach the pressure seat when it is received in the guiding gap; the adhesive suction platform is used to suction the adhesive tape that reaches the pressure seat when moving toward the pressure seat, and to transport the suctioned adhesive tape to the adhesive applicator.

3. The adhesive applicator as described in claim 1, characterized in that, The adhesive preparation mechanism further includes a positioning roller and an adhesive clamping assembly. The adhesive clamping assembly includes an adhesive clamping base, an adhesive clamping cylinder, and a clamping block. The adhesive clamping cylinder is mounted on the adhesive clamping base, and the clamping block is mounted on the drive end of the adhesive clamping cylinder. It is used to cooperate with the positioning roller under the drive of the adhesive clamping cylinder to clamp the adhesive tape.

4. The adhesive applicator as described in claim 3, characterized in that, The adhesive preparation mechanism further includes a first driving assembly, which includes a first slide block that can slide to approach or move away from the adhesive application mechanism and a first driving member for driving the first slide block. The adhesive clamping fixing seat is mounted on the first slide block.

5. The adhesive applicator as described in claim 4, characterized in that, The adhesive preparation mechanism further includes an adhesive cutting assembly for cutting the adhesive tape. The adhesive cutting assembly includes an adhesive cutting base, an adhesive cutting cylinder, a cutter holder, and a cutter. The adhesive cutting base is mounted on the first slide, the adhesive cutting cylinder is mounted on the adhesive cutting base, the cutter holder is mounted on the drive end of the adhesive cutting cylinder, and the cutter is mounted on the cutter holder.

6. The adhesive applicator as described in claim 4, characterized in that, The glue preparation mechanism further includes a glue dispensing adjustment component, which includes an adjustment screw for limiting the movement distance of the first slide in a preset direction.

7. The adhesive applicator as described in claim 2, characterized in that, The glue preparation mechanism further includes a second driving assembly, which includes a second slide block that can slide to approach or move away from the glue application mechanism and a second driving member for driving the second slide block; the glue feeding assembly further includes a glue suction cylinder seat and a glue suction cylinder for driving the glue suction platform to move, the glue suction cylinder being disposed on the glue suction cylinder seat and the glue suction cylinder seat being disposed on the second slide block.

8. The adhesive applicator as described in claim 1, characterized in that, The adhesive application mechanism includes an adhesive application roller seat and an adhesive application roller rotatably mounted on the adhesive application roller seat for applying tape to the battery cell; the adhesive application mechanism also includes an adhesive application mounting base, an adhesive application guide rod, and a piston rod, the adhesive application guide rod being slidably mounted in the adhesive application mounting base, and the adhesive application roller seat being mounted at one end of the adhesive application guide rod; the adhesive application mounting base has an air chamber, which is sealed with compressed gas of adjustable pressure; one end of the piston rod is connected to the adhesive application roller seat, and the other end is slidably mounted in the air chamber, for providing cushioning when the adhesive application roller abuts against the battery cell.

9. The adhesive applicator as described in claim 8, characterized in that, The adhesive application mechanism further includes a rotating support base, a second motor, and a second motor transmission assembly. The rotating support base is mounted on the other end of the adhesive application guide rod, and the second motor is mounted on the rotating support base and is connected to the adhesive application roller via the second motor transmission assembly.

10. The adhesive applicator as described in claim 9, characterized in that, The adsorption wall is used to adsorb the tape; when the adsorption wall adsorbs the tape and the adhesive roller moves to abut against the battery cell, the second motor drives the adhesive roller to rotate through the second motor transmission assembly, so that the tape adsorbed by the adsorption wall rotates to the predetermined sealing position to seal the end of the battery cell.

11. The adhesive applicator as described in claim 10, characterized in that, The adhesive roller has an internal cavity, and the adsorption wall has multiple adsorption holes that communicate with the internal cavity; the adhesive roller also has a vent hole that communicates with the internal cavity and can be used to evacuate the gas in the internal cavity.

12. The adhesive applicator as described in claim 9, characterized in that, The second motor transmission assembly includes a driving gear, a driven gear, a rotating shaft, a driving wheel, and a driven wheel; the driving gear is located at the drive end of the second motor, the rotating shaft is rotatably mounted on the rotating support, the driven gear is located at one end of the rotating shaft and meshes with the driving gear, the driving wheel is located at the other end of the rotating shaft, and the driven wheel is located at one end of the adhesive roller and is connected to the driving wheel in a transmission manner.

13. The adhesive applicator as described in claim 8, characterized in that, The adhesive application mechanism further includes an adhesive application drive assembly for driving the adhesive application mounting base to perform linear translational motion; the adhesive application drive assembly includes a first motor, a first lead screw, a first lead screw nut, and an adhesive application drive connection assembly; the drive end of the first motor is connected to the first lead screw, the first lead screw nut is sleeved on the first lead screw, and the first lead screw is used to convert the rotation of the drive end of the first motor into the linear movement of the first lead screw nut. The adhesive application drive connection assembly connects the adhesive application mounting base to the first lead screw nut.

14. The adhesive applicator as claimed in claim 1, characterized in that, The adhesive roller is used to apply the tape to the battery cell, and the pressure roller is used to hold the battery cell. During the adhesive application operation, the adhesive application mechanism drives the adhesive roller to generate a first pressure toward the needle winding mechanism, and the pressure roller drives the pressure roller to generate a second pressure toward the needle winding mechanism. The first pressure and the second pressure are in different directions and act simultaneously on the needle winding mechanism and the battery cell.

15. The adhesive applicator as described in claim 14, characterized in that, The pressing mechanism further includes a pressing drive assembly for driving the pressing roller; the pressing drive assembly includes a pressing motor, a second lead screw, a second lead screw nut, and a pressing drive connection assembly; the driving end of the pressing motor is connected to the second lead screw, the second lead screw nut is sleeved on the second lead screw, and the second lead screw is used to convert the rotation of the driving end of the pressing motor into the linear movement of the second lead screw nut; The pressure drive connection assembly is used to drive the pressure motor to the pressure roller, so that the pressure motor can drive the pressure roller to move.

16. The adhesive applicator as described in claim 15, characterized in that, The pressing mechanism further includes a pressing cylinder, a pressing roller bracket, and a pressing roller seat; the pressing cylinder is used to drive the pressing roller bracket to move; the pressing roller seat is disposed on the pressing roller bracket, and the pressing roller is rotatably disposed on the pressing roller seat; the pressing cylinder is connected to the pressing drive connection assembly, so that the pressing cylinder can move under the drive of the pressing motor.

17. The adhesive applicator as described in any one of claims 1-16, characterized in that, The adhesive applicator also includes a mounting plate, the adhesive preparation mechanism is mounted on a first surface of the mounting plate, and the adhesive application mechanism and the pressing mechanism are mounted on a second surface of the mounting plate opposite to the first surface.

18. The adhesive applicator as claimed in claim 17, characterized in that, The mounting plate has a first through hole and a second through hole that penetrate its first and second surfaces. The pressing mechanism partially passes through the first through hole and extends out from the first surface, and the adhesive applicator partially passes through the second through hole and extends out from the first surface. The first through hole is also used for the needle winding mechanism to pass through.

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