Vertical adhesive tape pasting equipment

Abstract

Battery pole pieces are conveyed in the vertical direction, the equipment comprises four sets of adhesive tape pasting assemblies, the four sets of adhesive tape pasting assemblies are distributed in an up-down and left-right staggered mode, every two sets of adhesive tape pasting assemblies are located on the left side and the right side of a battery pole piece conveying path respectively, and every two sets of adhesive tape pasting assemblies located on the same side are staggered in a front-back and up-down mode. Each rubberizing assembly comprises an unwinding rubberizing unit, a first deviation rectifying unit, a second deviation rectifying unit and a deviation rectifying control unit. The automatic rubberizing machine is automatically operated, and meanwhile, the rubberizing precision can be ensured. Besides, a vertical structure is adopted, so that the adhesive tape is convenient to disassemble, dust on the battery pole piece can be prevented from falling into the heater, and cooling water of the heater can be prevented from dripping onto the battery pole piece.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery pole pieces, in particular to a vertical adhesive tape sticking device. Background Art

[0002] With the development of science and technology, lithium batteries have become a mainstream battery with a wide range of applications, covering energy storage, power, consumption, special and other aspects, providing strong impetus for the development of human society.

[0003] Lithium battery cells are made up of wound positive and negative electrodes and a separator. During the manufacturing process, adhesive tape is applied to the left and right edges of the coating on the surfaces and back of the positive and negative electrodes to prevent damage to the ion exchange membrane at the junction of the positive and negative aluminum and copper foils, thereby preventing separator damage and short circuits. Existing techniques typically use manual labor with mechanical assistance to apply green adhesive tape to the electrodes, resulting in low production efficiency. Furthermore, the adhesive placement cannot be precisely controlled, resulting in a low yield rate. Utility Model Content

[0004] In view of this, the technical problem to be solved by the present invention is to provide a vertical tape applying device with high production efficiency and capable of ensuring the accuracy of the bonding between the tape and the battery electrode.

[0005] In order to solve the above technical problems, the embodiment of the present invention provides a vertical adhesive tape device, in which the battery electrode is transported in the vertical direction. The vertical adhesive tape device includes four groups of adhesive tape components, which are staggered up and down and left and right. Two groups of adhesive tape components are located on the left side of the battery electrode transmission path, and the other two groups of adhesive tape components are located on the right side of the battery electrode transmission path. The two groups of adhesive tape components on the same side are staggered front and back and up and down. Each adhesive tape component includes:

[0006] An unwinding and gluing unit comprises a support plate and an unwinding disk mounted on the support plate, a plurality of rollers, a tensioning mechanism, a first gluing roller, a first heater, and a second gluing roller, wherein the support plate is vertically arranged and perpendicular to the surface of the battery electrode sheet; the first gluing roller, the first heater, and the second gluing roller are arranged in sequence in the direction of transmission of the battery electrode sheet; the plurality of rollers are located between the unwinding disk and the first gluing roller; the tensioning mechanism comprises a tensioning roller and a tensioning driver for driving the tensioning roller to swing; the tensioning roller is located between two adjacent rollers and close to one side of the support plate;

[0007] a first deflection correction unit, mounted on the support plate, comprising a deflection correction mechanism and an ultrasonic sensor for detecting position deviation of the adhesive tape; the deflection correction mechanism comprising a deflection correction roller, a bracket, and a deflection correction driver for driving the deflection correction roller to swing; the deflection correction driver having a power output shaft; the bracket being fixedly mounted on the power output shaft of the deflection correction driver; the deflection correction roller being rotatably mounted on the bracket, with its rotation axis being perpendicular to the power output shaft of the deflection correction driver; the deflection correction roller being located parallel to and between two upper and lower rollers; the ultrasonic sensor being located between two adjacent rollers and upstream of the deflection correction roller in the direction of tape transmission;

[0008] a second deflection correction unit, mounted on the support plate, comprising an optical deflection corrector for detecting position deviation of the battery electrode and a transmission mechanism for driving the support plate to translate horizontally left and right, the optical deflection corrector being located below the first glue-applying roller, and the support plate being mounted on the transmission mechanism; and

[0009] A correction control unit is used to control the operation of the correction mechanism and the transmission mechanism, and is electrically connected to the ultrasonic sensor, the optical correction device, the correction driver and the transmission mechanism.

[0010] Furthermore, the tensioning mechanism also includes a swing arm and a counterweight. The tensioning driver has a rotatable constant torque power output shaft. The swing arm is fixedly mounted on the power output shaft of the tensioning driver. The tensioning roller and the counterweight are respectively mounted at both ends of the swing arm.

[0011] Furthermore, the tensioning mechanism further includes an encoder for detecting whether the tensioning driver is operating, and a tensioning controller for controlling the rotation speed of the unwinding disk according to a feedback signal of the encoder, and the encoder is located in the tensioning driver.

[0012] Furthermore, the first glue-applying roller includes a first glue-pressing roller and a heating tube, and the heating tube is installed in the first glue-pressing roller.

[0013] Furthermore, the first glue-pressing roller also includes a pressure regulating module, which includes a lifting cylinder, a pressure sensor for detecting the pressure value between the tape and the first glue-pressing roller, and a pressure controller for adjusting the air pressure of the air path of the lifting cylinder according to the feedback signal of the pressure sensor. The first glue-pressing roller is connected to the piston of the lifting cylinder.

[0014] Furthermore, the first adhesive roller further includes a temperature probe for detecting the temperature of the adhesive tape, and a temperature controller for controlling the temperature of the heating tube according to a feedback signal from the temperature probe.

[0015] Furthermore, the first heater includes a lamp housing, an infrared heating tube and a focusing plate. One side of the lamp housing is recessed to form a accommodating space. The open end of the accommodating space is a light outlet. The infrared heating tube and the focusing plate are both installed in the accommodating space of the lamp housing, and the infrared heating tube is located between the focusing plate and the light outlet. The length extension direction of the infrared heating tube is parallel to the conveying direction of the battery electrode.

[0016] Furthermore, the lamp housing is provided with two water connectors for cooling water inlet and outlet respectively and at least two gas connectors. A water channel is provided inside the lamp housing, the water channel connects the two water connectors, and the gas connector is connected to the accommodating space of the lamp housing.

[0017] Furthermore, the first heater further includes a first thermocouple for detecting the temperature of the battery electrode and a second thermocouple for detecting the temperature of the lamp housing. The first and second thermocouples are both mounted on the lamp housing.

[0018] Furthermore, the unwinding and gluing unit further includes a second heater, which is mounted on the support plate and located between the first gluing roller and the optical deflection corrector.

[0019] Compared with the existing technology, the present invention features automated operation and higher production efficiency. Furthermore, the first and second deviation-correcting units detect positional deviations between the tape and the battery electrode, ensuring adhesive application accuracy and a high yield rate. Furthermore, the tape application equipment utilizes a vertical structure, with four sets of adhesive application components staggered vertically and horizontally. This facilitates the removal of the tape. As the battery electrode moves from bottom to top, the four sets of adhesive application components are positioned on the left and right sides of the electrode. This prevents dust from the electrode from falling into the heater, affecting the heating effect, and prevents cooling water from the heater from dripping onto the electrode, affecting product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the utility model.

[0022] Figure 2 yes Figure 1 A schematic front view of the illustrated embodiment.

[0023] Figure 3 yes Figure 1A three-dimensional schematic diagram of one set of adhesive components in the illustrated embodiment.

[0024] Figure 4 yes Figure 3 A schematic front view of the adhesive assembly shown.

[0025] Figure 5 yes Figure 3 A three-dimensional schematic diagram of the adhesive component shown from another angle.

[0026] Figure 6 yes Figure 3 Schematic diagram of the tensioning mechanism.

[0027] Figure 7 yes Figure 3 A three-dimensional schematic diagram of the first heater.

[0028] Figure 8 yes Figure 3 Schematic diagram of the first rubber-applying roller in FIG.

[0029] Figure 9 yes Figure 3 A three-dimensional schematic diagram of the first correcting unit. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments in the embodiments of the present invention, all other embodiments obtained by those skilled in the art should fall within the scope of protection of the embodiments of the present invention.

[0031] See also Figure 1 and Figure 2 , is a preferred embodiment of the present invention. The vertical adhesive tape device is suitable for applying hot melt adhesive tape to the left and right edges of the surface and back dressing of lithium battery electrodes, and ensuring the adhesive application accuracy. The battery electrodes are transported in the vertical direction. In this embodiment, the battery electrodes are transported from bottom to top. The vertical adhesive tape device includes a bracket 100 and four groups of adhesive tape assemblies. The four groups of adhesive tape assemblies are mounted on the bracket 100 and are staggered in the vertical direction and the horizontal direction. Two of the groups of adhesive tape assemblies are located on the left side of the battery electrode transmission path, and the other two groups of adhesive tape assemblies are located on the right side of the battery electrode transmission path. The two groups of adhesive tape assemblies on the same side are staggered in the front and back direction and the top and bottom direction.

[0032] Please also read Figures 3 to 5 Each glue-applying assembly includes a glue-applying unit, a first deflection-correcting unit, a second deflection-correcting unit, and a deflection-correcting control unit.

[0033] The unwinding and gluing unit includes a support plate 1 and an unwinding disc 2, a plurality of rollers 3, a tensioning mechanism 4, a first gluing roller 5, a first heater 6 and a second gluing roller 7 installed on the support plate 1. The support plate 1 is arranged vertically and perpendicular to the surface of the battery electrode 200. The unwinding disc 2 can be driven to rotate by a servo motor, and the first gluing roller 5, the first heater 6 and the second gluing roller 7 are arranged in sequence in the transmission direction of the battery electrode 200 (arranged in sequence from bottom to top in this embodiment). A plurality of rollers 3 are located between the unwinding disc 2 and the first gluing roller 5, and the adhesive tape 300 is wound around the first gluing roller 5. As shown Figure 6 As shown, the tensioning mechanism 4 includes a tensioning roller 41 and a tensioning driver 42 for driving the tensioning roller 41 to swing. The tensioning roller 41 is located between two adjacent rollers 3 and close to one side of the support plate 1. The first heater 6 can heat the battery electrode 200 and the adhesive tape 300 located between the first adhesive roller 5 and the second adhesive roller 7, so that the adhesive tape 300 can adhere to the battery electrode 200.

[0034] The first correction unit is installed on the support plate 1, including a correction mechanism 8 and an ultrasonic sensor 9. Figure 9 The deflection correction mechanism 8 includes a deflection correction roller 81, a bracket 82 and a deflection correction driver 83. The deflection correction driver 83 is used to drive the deflection correction roller 81 to swing, and has a power output shaft. The bracket 82 is fixedly mounted on the power output shaft of the deflection correction driver 83. The deflection correction roller 81 is rotatably mounted on the bracket 82, and its rotation axis is perpendicular to the power output shaft of the deflection correction driver 83. The deflection correction roller 81 is located parallel to two rollers 3 arranged one above the other. The ultrasonic sensor 9 is located between two adjacent rollers 3 and upstream of the deflection correction roller 81 in the transmission direction of the tape 300. It is used to detect the position deviation of the tape 300 and feed back the signal to the deflection correction control unit.

[0035] The second correction unit is mounted on the support plate 1 and includes an optical corrector 10 and a transmission mechanism 11. The optical corrector 10 is mounted on the support plate 1, below the first adhesive roller 5, and is used to detect positional deviations of the battery electrode 200 and provide feedback to the correction control unit. The transmission mechanism 11 is mounted on the bracket 100 and is used to drive the support plate 1 in horizontal translation. The support plate 1 is mounted on the transmission mechanism 11.

[0036] The correction control unit is used to control the operation of the correction mechanism 8 and the transmission mechanism 11. It is electrically connected to the ultrasonic sensor 9, the optical corrector 10, the correction driver 83 and the transmission mechanism 11. It can control the operation of the correction driver 83 and the transmission mechanism 11 according to the signals fed back by the ultrasonic sensor 9 and the optical corrector 10, respectively, and then make the correction roller 81 swing a specified angle to compensate for the position deviation of the tape 300, and make the support plate 1 translate a specified distance to compensate for the position deviation of the battery electrode 200.

[0037] The above-mentioned unwinding and gluing unit is used to stick the tape 300 to the specified position of the battery electrode 200. The unwinding disk 2 can be driven by a servo motor. The tape 300 is a whole roll of material. The size of the material roll can be measured by the laser ranging sensor 12 and fed back to the servo motor of the unwinding disk 2. The servo motor adjusts the speed according to the measurement results to ensure that the unwinding linear speed is uniform.

[0038] Please also read Figure 6 The tensioning mechanism 4 further includes a swing arm 43 and a counterweight 44. The tensioning driver 42 is used to drive the tensioning roller 41 to swing. The tensioning driver 42 has a rotatable constant torque power output shaft. In this embodiment, the tensioning driver 42 is a motor, and its rotating shaft (i.e., the power output shaft of the tensioning driver 42) is connected to the swing arm 43. The swing arm 43 is fixedly mounted on the power output shaft of the tensioning driver 42, and the tensioning roller 41 and the counterweight 44 are respectively mounted at both ends of the swing arm 43. The counterweight 44 can balance the tensioning roller 41, eliminating the influence of the tensioning roller 41 on the output torque accuracy of the tensioning driver 42. The constant torque output by the tensioning driver 42 can be transmitted to the tensioning roller 41 through the swing arm 43, so that the tensioning roller 41 can apply constant tension to the tape 300.

[0039] The above-mentioned tensioning mechanism 4 also includes an encoder and a tensioning controller. The encoder is located in the tensioning driver 42 and is used to detect whether the tensioning driver 42 is running and feed back the signal to the tensioning controller. The tensioning controller can control the rotation speed of the unwinding disk 2 according to the feedback signal of the encoder.

[0040] During the conveying process of the adhesive tape 300, after passing through roller 3 and changing direction, the tape 300 wraps around the outer edge of the tensioning roller 41. The tensioning mechanism 4 applies tension to tighten the tape 300. If the unwinding reel 2 unwinds too slowly, the tension of the tape 300 increases, pressing down on the tensioning roller 41. This, in turn, drives the motor to rotate via the swing arm 43. When the encoder detects motor rotation, it feeds a signal back to the tensioning controller, which in turn issues a command to increase the unwinding reel 2's unwinding speed. The tensioning roller 41 then automatically resets. If the unwinding is too fast, the tensioning roller 41, under the action of a constant torque, moves closer to the corresponding support plate 1, driving the motor to rotate via the swing arm 43. When the encoder detects motor rotation, it feeds a signal back to the tensioning controller, which in turn issues a command to slow the unwinding reel 2 down. The tensioning roller 41 then automatically resets.

[0041] Please also read Figure 7The first heater 6 includes a lamp housing 61, an infrared heating tube and a light concentrator. One side of the lamp housing 61 is recessed to form a receiving space, and the open end of one side of the receiving space is a light outlet. The infrared heating tube and the light concentrator are both installed in the receiving space of the lamp housing 61, and the infrared heating tube is located between the light concentrator and the light outlet. Its length extension direction is parallel to the conveying direction of the battery electrode 200 (such as Figure 3 and Figure 4 (as indicated by the arrow A in the middle).

[0042] The lamp housing 61 is provided with two water connectors 611 for the inlet and outlet of cooling water, respectively. A water channel is provided within the lamp housing 61, connecting the two water connectors 611. The water connectors 611 are connected to a water chiller, respectively for the inlet and outlet of water. As the cooling water flows within the lamp housing 61, it removes heat from the lamp housing 61, lowering the temperature of the lamp housing 61. Furthermore, the lamp housing 61 is provided with at least two air connectors 612, which are connected to the housing space of the lamp housing 61. One of the air connectors 612 can be connected to compressed air, while the other is connected to an exhaust fan, allowing air to flow in and out simultaneously. Alternatively, all of the air connectors 612 can be connected to an exhaust fan, allowing air to be drawn in and out simultaneously, allowing air to flow through the housing space of the lamp housing 61, thereby removing heat from the housing space and the lamp housing 61, lowering the temperature of the lamp housing 61 and the housing space. This makes the equipment safer, improves product quality, and reduces the probability of damage to the battery electrodes 200 during production.

[0043] In addition, the first heater 6 further includes a first thermocouple 64 and a second thermocouple 65. The first thermocouple 64 is used to detect the temperature of the battery electrode 200, and the second thermocouple 65 is used to detect the temperature of the lamp housing 61. Both the first and second thermocouples 64 and 65 are mounted on the lamp housing 61 to better control the device temperature and ensure safety.

[0044] The above-mentioned first heater 6 emits the infrared light emitted by the infrared heating tube from the light outlet of the lamp housing 61, and focuses it to the part of the battery electrode 200 that needs to be heated through the focusing plate, thereby realizing non-contact heating of the battery electrode 200. The first heater 6 dissipates heat to the lamp housing 61 and the accommodating space of the lamp housing 61 at the same time through water cooling and air cooling. Under the premise of not affecting the heating effect, the inside of the heater and the surrounding air can be cooled to prevent damage to the battery electrode 200 and the operator.

[0045] In order to make the tape 300 more firmly attached to the battery electrode 200, the above-mentioned unwinding and gluing unit also includes a second heater 13. The second heater 13 is installed on the support plate 1 and is located between the first gluing roller 5 and the optical deflection corrector 10. It is used to preheat the battery electrode 200 before entering the area of the first gluing roller 5. When the battery electrode 200 passes through the area of the second heater 13, the second heater 13 can heat the battery electrode 200 at room temperature to a temperature at which gluing can be performed. In this way, when the preheated battery electrode 200 moves to the first gluing roller 5, the tape 300 can be attached to the battery electrode 200. After the second pressing by the second gluing roller 7, the bonding strength between the battery electrode 200 and the tape 300 can be enhanced to prevent false adhesion. In this embodiment, the structure of the second heater 13 is the same as that of the first heater 6 and will not be repeated here.

[0046] Please also read Figure 8 Considering that there is a section of the battery electrode 200 between the second heater 13 and the first gluing roller 5 where the tape 300 is not adhered, which cools down after power is turned off, the second heater 13 cannot heat this section after power is turned on, and the tape 300 cannot be adhered to this section of the battery electrode 200, in this embodiment, the first gluing roller 5 includes a first gluing roller 51 and a heating tube, which is installed inside the first gluing roller 51. The heat generated by the heating tube can be transferred to the first gluing roller 51, and through the first gluing roller 51 and the tape 300, contact heating of the tape 300 is achieved. The first gluing roller 5 can simultaneously heat the tape 300 while squeezing it, thereby better ensuring the bonding effect of the adhesive on the tape 300.

[0047] In this embodiment, the first adhesive roller 5 also includes a pressure regulation module, which includes a lift cylinder 52, a pressure sensor 53, and a pressure controller. The first adhesive roller 51 is connected to the piston of the lift cylinder 52 and can move with the piston of the lift cylinder 52. The pressure sensor 53 is used to detect the pressure between the adhesive tape 300 and the first adhesive roller 51. The pressure controller is used to adjust the air pressure of the lift cylinder 52 based on the feedback signal from the pressure sensor 53. This adjustment ensures that the first adhesive roller 51 and the adhesive tape 300 are properly aligned and heat is transferred, preventing the adhesive tape 300 from being damaged by excessive pressure.

[0048] The first adhesive roller 5 further includes a temperature probe 54 and a temperature controller. The temperature probe 54 is used to detect the temperature of the adhesive tape 300. The temperature controller is used to control the temperature of the heating tube according to the feedback signal of the temperature probe 54 to prevent the heating temperature of the adhesive tape 300 from being too high or too low.

[0049] During operation, the lifting cylinder 52 drives the first adhesive roller 51 to contact the tape 300. The pressure sensor 53 detects the pressure between the first adhesive roller 51 and the tape 300 and feeds it back to the pressure controller. Based on the signal from the pressure sensor 53, the pressure controller issues a command to adjust the air pressure in the lifting cylinder 52, ensuring proper contact and heat transfer between the first adhesive roller 51 and the tape 300. Simultaneously, the temperature probe 54 detects the temperature of the tape 300 and feeds it back to the temperature controller. Based on the signal from the temperature probe 54, the temperature controller issues a command to adjust the temperature of the heating tube, ensuring that the first adhesive roller 51 provides the appropriate contact heating temperature to the tape 300, preventing overheating or insufficient heating.

[0050] The second gluing roller 7 is used to press the tape 300 and the battery electrode 200 together again, thereby enhancing the bonding strength between the battery electrode 200 and the tape 300 and preventing loose adhesion. In this embodiment, the structure of the second gluing roller 7 is similar to that of the first gluing roller 5, including a second gluing roller and a pressure regulating module. The main difference is that the second gluing roller does not have a heating function and does not have a heating tube, a temperature probe, or a temperature controller. The structure of the second gluing roller 7 is not further described here.

[0051] Please refer to Figure 9 again. The aforementioned deflection correction control unit controls the deflection correction driver 83 based on the feedback signal from the ultrasonic sensor 9 to drive the deflection correction roller 81 to swing to a corresponding angle. In this embodiment, the deflection correction driver 83 comprises a motor and a reducer. The motor is a servo motor, the shaft of which is connected to the reducer. The reducer's shaft (i.e., the power output shaft of the deflection correction driver 83) is connected to the bracket 82. The deflection correction roller 81 is rotatably mounted on a roller shaft. One end of the roller shaft is fixedly mounted on the bracket 82, and the roller shaft is perpendicular to the power output shaft of the deflection correction driver 83. The motor drives the bracket 82 to rotate via the reducer, causing the deflection correction roller 81 to swing along with the bracket 82.

[0052] During operation, the ultrasonic sensor 9 monitors the position of the tape 300 entering the roller 3 in real time, detects the edge of the tape 300, determines whether the tape 300 is deflected and the extent of the deflection, and outputs this information to the correction control unit, which calculates whether correction is required and the amount of correction required. When the tape 300 reaches the correction roller 81, the correction control unit controls the correction driver 83 to deflect the correction roller 81 by an angle corresponding to the deflection of the tape 300, thereby correcting the position of the tape 300. Among them, the two sets of correction mechanisms 8 located on the left side of the pole piece 200, when the position of the tape 300 deviates toward the support plate 1, the correction control unit controls the correction roller 81 to swing in the clockwise direction; conversely, when the position of the tape 300 deviates toward away from the support plate 1, the correction control unit controls the correction roller 81 to swing in the counterclockwise direction; and the two sets of correction mechanisms 8 located on the right side of the pole piece 200, when the position of the tape 300 deviates toward the support plate 1, the correction control unit controls the correction roller 81 to swing in the counterclockwise direction; conversely, when the position of the tape 300 deviates toward away from the support plate 1, the correction control unit controls the correction roller 81 to swing in the clockwise direction.

[0053] In this embodiment, the transmission mechanism 11 includes a motor, a screw and a screw nut. The screw is connected to the motor in a transmission manner, and is perpendicular to the transmission direction of the battery electrode 200 and parallel to the surface of the battery electrode 200. The screw nut is mounted on the screw, and the support plate 1 is fixed on the screw nut. When the motor drives the screw to rotate, the screw nut translates along the screw, thereby driving the support plate 1 to translate, and the support plate 1 then drives all components installed thereon to move together. In order to make the movement of the gluing module more stable, in this embodiment, the transmission module also includes two guide rails, which are parallel to the screw, and the support plate 1 is slidably mounted on the guide rails through a slider. The above-mentioned correction control unit can control the motor to drive the screw to rotate according to the feedback signal of the optical corrector 10, and then drive the support plate 1 to translate a corresponding distance.

[0054] The tape application method of the vertical tape application device generally includes the following steps:

[0055] Manually install four rolls of tape onto the support plates 1 (i.e., the unwinding reels 2) of the four adhesive tape assemblies.

[0056] The unwinding and gluing unit transfers the adhesive tape 300 to the tensioning mechanism 4, where the tape is tensioned.

[0057] The tape 300 passes through the ultrasonic sensor 9, which senses whether there is any deviation. The data is transmitted to the correction mechanism 8, which corrects the deviation of the tape 300 to prevent the tape 300 from deviating.

[0058] Then, the adhesive tape 300 is transferred to the first adhesive roller 5 , where it is heated and prepared to be attached to a designated position on the battery electrode 200 .

[0059] The battery electrode 200 is fed from below and is detected by the optical deflection corrector 10 to see if there is any deviation. If there is any deviation, the transmission mechanism 11 drives the support plate 1 to move according to the data of the optical deflection corrector 10. The support plate 1 then drives all components mounted on it to move together, thereby compensating for the deviation and achieving a good fit between the tape 300 and the battery electrode 200.

[0060] After the adhesive tape 300 is applied, the battery electrode 200 is heated by the first heater 6 , and then the second adhesive roller 7 applies pressure to the adhesive tape 300 for adhesion.

[0061] During the above process, after the tape roll is installed, the size of the tape roll is measured by the laser rangefinder 12 and fed back to the servo motor of the unwinding reel 2. The servo motor then adjusts the speed based on the measurement results to ensure a uniform linear unwinding speed. When tensioning the tape 300, the tensioning mechanism 4 can provide feedback to the servo motor of the unwinding reel 2, allowing the unwinding reel 2 to adjust the unwinding speed. As the battery electrode 200 moves upward, the second heater 13 can first heat the battery electrode 200 to a temperature suitable for adhering the tape 300, thereby facilitating the application of the tape 300 to the battery electrode 200.

[0062] The above-mentioned vertical tape-applying equipment operates automatically and has high production efficiency. At the same time, the position deviation detection of the tape 300 and the battery electrode 200 by the first and second correction units can ensure the accuracy of the adhesive application and a high yield rate. In addition, the above-mentioned tape-applying equipment adopts a vertical structure, and the four sets of adhesive components are staggered vertically and horizontally. Its structure is convenient and easy to remove the tape 300. At the same time, the battery electrode 200 moves from bottom to top, and the four sets of adhesive components are arranged on the left and right sides of the battery electrode 200. This can prevent dust on the battery electrode 200 from falling into the heater and affecting the heating effect. It can also prevent the cooling water of the heater from dripping onto the battery electrode 200 and affecting product quality.

[0063] The above embodiments are only preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be regarded as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A vertical tape applying device, characterized in that: The battery pole piece is transported in the vertical direction. The vertical tape taping equipment includes four groups of gluing components. The four groups of gluing components are staggered up and down and left and right. Two groups of gluing components are located on the left side of the battery pole piece transmission path, and the other two groups of gluing components are located on the right side of the battery pole piece transmission path. The two groups of gluing components on the same side are staggered front and back and up and down. Each gluing component includes: An unwinding and gluing unit comprises a support plate and an unwinding disk mounted on the support plate, a plurality of rollers, a tensioning mechanism, a first gluing roller, a first heater, and a second gluing roller, wherein the support plate is vertically arranged and perpendicular to the surface of the battery electrode sheet; the first gluing roller, the first heater, and the second gluing roller are arranged in sequence in the direction of transmission of the battery electrode sheet; the plurality of rollers are located between the unwinding disk and the first gluing roller; the tensioning mechanism comprises a tensioning roller and a tensioning driver for driving the tensioning roller to swing; the tensioning roller is located between two adjacent rollers and close to one side of the support plate; a first deflection correction unit, mounted on the support plate, comprising a deflection correction mechanism and an ultrasonic sensor for detecting position deviation of the adhesive tape; the deflection correction mechanism comprising a deflection correction roller, a bracket, and a deflection correction driver for driving the deflection correction roller to swing; the deflection correction driver having a power output shaft; the bracket being fixedly mounted on the power output shaft of the deflection correction driver; the deflection correction roller being rotatably mounted on the bracket, with its rotation axis being perpendicular to the power output shaft of the deflection correction driver; the deflection correction roller being located parallel to and between two upper and lower rollers; the ultrasonic sensor being located between two adjacent rollers and upstream of the deflection correction roller in the direction of tape transmission; a second deflection correction unit, mounted on the support plate, comprising an optical deflection corrector for detecting position deviation of the battery electrode and a transmission mechanism for driving the support plate to translate horizontally left and right, the optical deflection corrector being located below the first glue-applying roller, and the support plate being mounted on the transmission mechanism; and A correction control unit is used to control the operation of the correction mechanism and the transmission mechanism, and is electrically connected to the ultrasonic sensor, the optical correction device, the correction driver and the transmission mechanism.

2. The vertical tape applying device according to claim 1, characterized in that: The tensioning mechanism also includes a swing arm and a counterweight. The tensioning driver has a rotatable constant torque power output shaft. The swing arm is fixedly mounted on the power output shaft of the tensioning driver. The tensioning roller and the counterweight are respectively mounted at both ends of the swing arm.

3. The vertical tape applying device according to claim 2, characterized in that: The tensioning mechanism further includes an encoder for detecting whether the tensioning driver is operating, and a tensioning controller for controlling the rotation speed of the unwinding disk according to a feedback signal from the encoder, wherein the encoder is located in the tensioning driver.

4. The vertical tape applying device according to claim 1, wherein: The first glue-applying roller includes a first glue-pressing roller and a heating tube, and the heating tube is installed in the first glue-pressing roller.

5. The vertical tape applying device according to claim 4, characterized in that: The first glue-pressing roller also includes a pressure regulating module, which includes a lifting cylinder, a pressure sensor for detecting the pressure value between the tape and the first glue-pressing roller, and a pressure controller for adjusting the air pressure of the air circuit of the lifting cylinder according to the feedback signal of the pressure sensor. The first glue-pressing roller is connected to the piston of the lifting cylinder.

6. The vertical tape applying device according to claim 4 or 5, characterized in that: The first adhesive roller further includes a temperature probe for detecting the temperature of the adhesive tape, and a temperature controller for controlling the temperature of the heating tube according to a feedback signal from the temperature probe.

7. The vertical tape applying device according to claim 1, wherein: The first heater includes a lamp housing, an infrared heating tube and a focusing plate. One side of the lamp housing is recessed to form a accommodating space. The open end of the accommodating space is a light outlet. The infrared heating tube and the focusing plate are both installed in the accommodating space of the lamp housing, and the infrared heating tube is located between the focusing plate and the light outlet. The length extension direction of the infrared heating tube is parallel to the conveying direction of the battery electrode.

8. The vertical tape applying device according to claim 7, wherein: The lamp housing is provided with two water connectors for cooling water inlet and outlet and at least two gas connectors. A water channel is provided inside the lamp housing, the water channel connects the two water connectors, and the gas connector is connected to the accommodating space of the lamp housing.

9. The vertical tape applying device according to claim 7 or 8, characterized in that: The first heater further includes a first thermocouple for detecting the temperature of the battery electrode and a second thermocouple for detecting the temperature of the lamp housing. The first and second thermocouples are both mounted on the lamp housing.

10. The vertical tape applying device according to claim 1, wherein: The unwinding and gluing unit further includes a second heater, which is mounted on the support plate and located between the first gluing roller and the optical deflection corrector.

Images