Tension adjusting device

Abstract

The utility model relates to the technical field of pole piece coating, and discloses a tension adjusting device for a pole piece coating process. The swing arm shaft is rotationally connected with the mounting plate; the angle sensor is arranged on the swing arm shaft; the passing roller is used for supporting the battery pole piece; the passing roller and the swing arm shaft are arranged side by side through the swing arm and are rotationally connected with the swing arm; the motor is provided with a driving end, and the driving end of the motor is connected with the swing arm shaft; and the controller is electrically connected with the motor and the angle sensor and is used for controlling the rotating direction and starting and stopping of the motor according to the rotating angle information, collected by the angle sensor, of the swing arm shaft. According to the utility model, the mode that the motor drives the swing arm shaft to rotate is adopted, so that the tension of the pole piece on the passing roller is accurately regulated and controlled, the coating tension control precision is effectively improved, and the pole piece belt running operation is more stable and smoother.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pole piece coating, specifically relates to a tension adjusting device. BACKGROUND

[0002] Pole piece coating refers to the process that uniformly coats slurry with good stability, viscosity and fluidity on positive and negative pole current collectors (such as copper foil or aluminum foil). The main purpose is to ensure that the slurry is uniformly and continuously attached to the current collector, thereby forming a battery pole piece with consistency and high performance.

[0003] In the pole piece coating process, the control precision of the pole piece tension will directly affect the coating precision. The traditional tension control actuator generally adopts the mode of ordinary cylinder + electronic ruler or low-friction cylinder + electric proportional valve. Due to the fluctuation of air pressure, and the precision of the electronic ruler or proportional valve, the tension control precision is not high, which further affects the coating area density precision. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a tension adjusting device to solve the problem of low tension control precision of the existing tension adjusting device, which affects the coating area density precision.

[0005] The utility model provides a tension adjusting device for pole piece coating process, comprising:

[0006] A mounting plate;

[0007] An oscillating arm shaft is rotatably connected to the mounting plate;

[0008] An angle sensor is arranged on the oscillating arm shaft;

[0009] A roller is used to support the battery pole piece. The roller is arranged side by side with the oscillating arm shaft through the oscillating arm and is rotatably connected to the oscillating arm;

[0010] A motor has an output end, and the output end of the motor is connected to the oscillating arm shaft;

[0011] A controller is electrically connected to the motor and the angle sensor, and is used to control the rotation direction and start-stop of the motor according to the rotation angle information of the oscillating arm shaft collected by the angle sensor.

[0012] Beneficial effects: The motor operates according to a working principle different from that of the cylinder, and does not need to rely on air pressure for operation. Therefore, during the pole piece coating process, no matter how the air pressure environment changes, the motor can stably and accurately change the position of the roller according to the instructions of the controller, so as to ensure that the pole piece tension always remains near the required set value, greatly improving the stability of the entire coating process.

[0013] Further, the rotation angle of the swing arm shaft is obtained by the encoder, so that the tension adjusting device can automatically determine whether the over roller has reached the preset position. If the over roller has reached the preset position, the controller controls the motor to stop running; otherwise, if the over roller has not reached the preset position, the controller continues to control the motor to run until the over roller reaches the preset position. In this way, the tension of the pole piece can be stabilized near the set value, the face density precision of coating is ensured, and the yield of products is improved. In addition, the automation level of the tension adjusting device is significantly enhanced, and the intelligence and efficiency of the overall production process are optimized.

[0014] In an alternative embodiment, a transmission assembly is further included, and the motor drives the swing arm shaft to rotate through the transmission assembly; one end of the swing arm shaft extends out of the mounting plate, and the transmission assembly is located on the end of the swing arm shaft extending out of the mounting plate.

[0015] Beneficial effects: By setting the transmission assembly, the motor can more effectively drive the swing arm shaft to rotate, reduce the loss of motor output power, and ensure that the swing arm shaft can accurately rotate according to the driving instruction of the motor, thereby realizing precise control of the tension of the pole piece on the over roller. In addition, by setting the transmission assembly at the end of the swing arm shaft extending out of the mounting plate, the transmission assembly and the over roller can be placed in different areas by the separation effect of the mounting plate, avoiding interference between the transmission assembly and the over roller. Secondly, since the transmission assembly will vibrate during operation, setting the transmission assembly at the end of the swing arm shaft extending out of the mounting plate can increase the distance between the transmission assembly and the over roller, prolong the propagation path of the vibration, and reduce the influence of the vibration on the tension of the pole piece.

[0016] In an alternative embodiment, the transmission assembly includes a driving pulley and a driven pulley engaged with the driving pulley, the driving pulley is arranged on the output end of the motor, and the driven pulley is arranged on the swing arm shaft.

[0017] Beneficial effects: The transmission structure of the engagement between the driving pulley and the driven pulley can optimize the transmission efficiency, reduce energy loss, and ensure that the motor can accurately control the position of the over roller. On the other hand, compared with some complex transmission mechanisms, the engagement between the driving pulley and the driven pulley can make the transmission assembly more compact in size, thereby saving space and improving the overall compactness of the device.

[0018] In an alternative embodiment, the transmission assembly includes a driving pulley, a driven pulley, and a synchronous belt engaged with the driving pulley and the driven pulley, the driving gear is arranged on the driving end of the motor, and the driven pulley is arranged on the swing arm shaft.

[0019] Beneficial effects: By adopting the combination transmission mode of the driving pulley, the driven pulley and the synchronous belt, the power of the motor can be accurately and efficiently transmitted to the swing arm shaft, ensuring that the motor can realize accurate control of the position of the over roller. At the same time, the synchronous belt has certain buffering and damping performance. During power transmission, it can effectively absorb and resolve the impact force and vibration generated by mechanical operation, so that the tension of the pole piece can always be maintained in a stable state, greatly reducing the product quality problems caused by unstable tension.

[0020] In an alternative embodiment, the angle sensor is an encoder, which is located on the end of the swing arm shaft extending out of the mounting plate and is coaxially arranged with the driven pulley.

[0021] Beneficial effects: The encoder is coaxially arranged with the driven pulley on the end of the swing arm shaft extending out of the mounting plate, which can accurately and timely obtain the swing arm shaft rotation angle information and directly feed back to the controller for accurate adjustment of the pole piece tension, thereby ensuring the coating precision. Moreover, the coaxial layout structure is compact, reducing the space occupation and signal transmission interference, and improving the stability and reliability of the tension adjusting device.

[0022] In an alternative embodiment, the mounting plate is a pair, and the swing arm shaft is located between the pair of mounting plates and connected with the mounting plates through bearings.

[0023] Beneficial effects: The pair of mounting plates provides a stable support structure for the swing arm shaft, and the swing arm shaft is connected with the mounting plates through bearings, which not only ensures the flexibility of the swing arm shaft rotation, so that it can accurately respond to the motor drive to adjust the pole piece tension, but also effectively disperses the stress, reduces wear and tear and shaking, enhances the stability and durability of the overall structure, and helps to maintain the stability of the pole piece running and the accuracy of the tension control, thereby improving the coating quality and production efficiency.

[0024] In an alternative embodiment, the swing arm is a pair, and the over roller is located between the pair of swing arms and connected with the swing arms through bearings.

[0025] Beneficial effects: The pair of swing arms provides a balanced and stable mounting platform for the over roller, and the over roller is connected with the swing arms through bearings, which not only ensures the flexibility of the over roller rotation for smooth running of the pole piece, but also makes the tension distribution of the pole piece on the over roller more uniform and symmetrical, reduces the problems of pole piece deviation and wrinkles caused by uneven stress, and greatly improves the stability and reliability of the pole piece running.

[0026] In an alternative embodiment, the motor is located on the side of the mounting plate away from the over roller.

[0027] Beneficial effect: the motor is arranged on the side of the mounting plate far from the passing roller, which effectively avoids the vibration generated during the operation of the motor from directly affecting the passing roller and the movement of the pole piece on the passing roller, and ensures the stability of the movement of the pole piece on the passing roller. In addition, the layout mode can not only reasonably utilize the space, but also facilitates the independent maintenance and repair of the motor.

[0028] In an alternative embodiment, the motor is fixed to the mounting plate by a motor mounting seat.

[0029] Beneficial effect: the motor is fixed to the mounting plate by the motor mounting seat, which can ensure that the motor does not displace or shake during operation, thereby ensuring the stability and accuracy of the power output.

[0030] In an alternative embodiment, the motor mounting seat is connected to the mounting plate by a fastener.

[0031] Beneficial effect: the motor mounting seat is connected to the mounting plate by the fastener, which can make the installation and disassembly of the motor more convenient and efficient, and improve the maintainability of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0033] Figure 1 is a structural schematic view of another tension adjusting device according to an embodiment of the present application.

[0034] Figure 2 is a structural schematic view of another tension adjusting device according to an embodiment of the present application.

[0035] Figure 3 is a side view schematic view of a tension adjusting device according to an embodiment of the present application.

[0036] LEGEND OF DRAWINGS

[0037] 1, mounting plate; 2, swing arm shaft; 201, swing arm; 3, angle sensor; 4, passing roller; 5, motor; 6, transmission assembly; 601, driving pulley; 602, driven pulley; 603, synchronous belt; 7, bearing; 8, motor mounting seat. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in the following with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0039] In view of the problem that the tension control precision of the existing tension adjusting device is not high, affecting the coating surface density precision, the utility model provides a kind of tension adjusting device.

[0040] The embodiments of the utility model will be described below in combination with Figures 1 to 3

[0041] According to the embodiments of the utility model, a kind of tension adjusting device is provided for pole piece coating process, including: mounting plate 1, swing arm shaft 2, angle sensor 3, over roller 4, motor 5 and controller.

[0042] Specifically, swing arm shaft 2 is rotatably connected with mounting plate 1;Angle sensor 3 is arranged on swing arm shaft 2;Over roller 4 is used to support battery pole piece;Over roller 4 is arranged side by side with swing arm 201 through swing arm 201 and swing arm shaft 2 and is rotatably connected with swing arm 201;Motor 5 has driving end, and the driving end of motor 5 is connected with swing arm shaft 2;Controller, with motor 5 and angle sensor 3 electrically connected, is used to control the rotation direction and start-stop of motor 5 according to the rotation angle information of swing arm shaft 2 collected by angle sensor 3.

[0043] Motor 5 operates by different working principle from cylinder, and it does not need to operate by means of air pressure. Therefore, in the process of pole piece coating, no matter how the surrounding air pressure environment changes, motor 5 can stably and accurately change the position of over roller 4 according to the instruction of controller, so as to ensure that the tension of pole piece is always kept near the required set value, greatly improving the stability of the whole coating process.

[0044] Further, the rotation angle of swing arm shaft 2 is obtained by using encoder, which can make the tension adjusting device automatically judge whether over roller 4 has reached the preset position. If over roller 4 has reached the preset position, the controller will control motor 5 to stop running;On the contrary, if over roller 4 has not reached the preset position, the controller will continue to control motor 5 to run until over roller 4 reaches the preset position. In this way, not only can the tension of pole piece be stabilized near the set value, guaranteeing the surface density precision of coating and improving the yield of product, but also can significantly enhance the automation level of tension adjusting device, optimize the intelligence and efficiency of overall production process.

[0045] ​It should be noted that the case that the over roller 4 does not reach the preset position includes the following two cases: one is that the over roller 4 does not reach the preset position due to insufficient rotation angle of the swing arm shaft 2; the other is that the over roller 4 exceeds the preset position due to excessive rotation angle of the swing arm shaft 2. When facing the first case, the controller sends a signal to the motor 5 to continue rotating to control the motor 5 to continue rotating, and after the over roller 4 reaches the preset position, the controller sends a signal to the motor 5 to stop running; when facing the second case, the controller sends a signal to the motor 5 to reverse rotation to control the motor 5 to rotate in a direction different from the previous direction, and after the over roller 4 reaches the preset position, the controller sends a signal to the motor 5 to stop running.

[0046] In order to better utilize the space and make the layout of the entire device more reasonable and compact, in some embodiments, the swing arm shaft 2 and the over roller 4 are arranged in the height direction of the tension adjusting device, and the over roller 4 is located below the swing arm shaft 2.

[0047] According to an embodiment of the present application, as shown in Figure 1 the transmission assembly 6, the motor 5 drives the swing arm shaft 2 to rotate through the transmission assembly 6; one end of the swing arm shaft 2 extends out of the mounting plate 1, and the transmission assembly 6 is located on the end of the swing arm shaft 2 extending out of the mounting plate 1. In this embodiment, the transmission assembly 6 is provided, which can more effectively drive the swing shaft to rotate, reduce the loss of output power of the motor 5, and ensure that the swing arm shaft 2 can accurately rotate according to the driving instruction of the motor 5, thereby realizing precise control of the tension of the pole piece on the over roller 4. In addition, the transmission assembly 6 is arranged at the end of the swing arm shaft 2 extending out of the mounting plate 1, which can place the transmission assembly 6 and the over roller 4 in different areas by the separation effect of the mounting plate 1, avoiding interference between the transmission assembly 6 and the over roller 4. Secondly, since the transmission assembly 6 will vibrate during operation, arranging the transmission assembly 6 at the end of the swing arm shaft 2 extending out of the mounting plate 1 can increase the distance between the transmission assembly 6 and the over roller 4, prolong the propagation path of the vibration, and reduce the influence of the vibration on the tension of the pole piece.

[0048] According to an embodiment of the present application, the transmission assembly 6 includes a driving pulley 601 and a driven pulley 602 engaged with the driving pulley 601, the driving pulley 601 is arranged on the driving end of the motor 5, and the driven pulley 602 is arranged on the swing arm shaft 2. The transmission structure form that the driving pulley 601 and the driven pulley 602 are engaged can optimize the transmission efficiency, reduce energy loss, and ensure that the motor 5 can realize accurate control of the position of the over roller 4. On the other hand, compared with some complex transmission mechanisms, the engagement mode of the driving pulley 601 and the driven pulley 602 can make the transmission assembly 6 more compact in size, thereby facilitating space saving and improving the overall compactness of the device.

[0049] It can be understood that when the transmission assembly 6 is a driving pulley 601 and a driven pulley 602, it means that the output shaft of the motor 5 is not collinear with the swing arm shaft 2, that is, the approximate positional relationship between the motor 5 and the swing roller can be arranged in an up-down or left-right manner. Compared with the arrangement of the output shaft of the motor 5 and the swing arm shaft 2, the two are not collinear, which can better utilize the space of the device in the height direction and / or the width direction, optimize the space layout of the equipment, and improve the space utilization.

[0050] According to an embodiment of the present application, as shown in Figures 1 to 3 The transmission assembly 6 comprises a driving pulley 601, a driven pulley 602, and a synchronous belt 603 engaged with the driving pulley 601 and the driven pulley 602. The driving pulley 601 is arranged on the driving end of the motor 5, and the driven pulley 602 is arranged on the swing arm shaft 2. By adopting the combined transmission mode of the driving pulley 601, the driven pulley 602 and the synchronous belt 603, the power of the motor 5 can be accurately and efficiently transmitted to the swing arm shaft 2, ensuring that the motor 5 can realize accurate control of the position of the roller 4. At the same time, the synchronous belt 603 has certain buffering and damping performance. During power transmission, it can effectively absorb and resolve the impact force and vibration generated by mechanical operation, so that the sheet tension can always be maintained in a stable state, greatly reducing the product quality problems caused by unstable tension.

[0051] According to an embodiment of the present application, as shown in Figure 1 and Figure 2 The angle sensor 3 is an encoder, which is arranged on the end of the swing arm shaft 2 extending out of the mounting plate 1 and coaxially arranged with the driven pulley 602. The encoder is coaxially arranged with the driven pulley 602 on the end of the swing arm shaft 2 extending out of the mounting plate 1, which can accurately and timely obtain the swing arm shaft 2 rotation angle information, directly feedback to the controller to accurately adjust the sheet tension, and ensure the coating precision. Moreover, the coaxial layout structure is compact, reducing the space occupation and signal transmission interference, and improving the stability and reliability of the tension adjusting device.

[0052] According to an embodiment of the present application, as shown in Figure 1 and Figure 2 The mounting plate 1 is a pair, and the swing arm shaft 2 is located between the pair of mounting plates 1 and connected with the mounting plate 1 through the bearing 7. The arrangement of the pair of mounting plates 1 provides a stable support structure for the swing arm shaft 2. The swing arm shaft 2 is rotatably connected with the mounting plate 1 through the bearing 7, which not only ensures the flexibility of the swing arm shaft 2 rotation, so that it can accurately respond to the motor 5 drive to adjust the sheet tension, but also effectively disperses the stress, reduces the wear and tear and shaking, enhances the stability and durability of the overall structure, maintains the stability of the sheet running and the accuracy of the tension control, and improves the coating quality and production efficiency.

[0053] According to an embodiment of the present application, as shown inFigure 1 and Figure 2 As shown in the figure, the swing arm 201 is a pair, and the roller 4 is located between the pair of swing arms 201 and is connected with the swing arm 201 through the bearing 7. The design of the pair of swing arms 201 builds a balanced and stable mounting platform for the roller 4. The roller 4 is connected with the swing arm 201 through the bearing 7, which can ensure that the roller 4 can rotate flexibly to facilitate the smooth running of the pole piece, and at the same time, the tension distribution of the pole piece on the roller 4 is more uniform and symmetrical, reducing the problems of pole piece deviation and wrinkles caused by uneven force, greatly improving the stability and reliability of the pole piece running.

[0054] According to an embodiment of the present application, as shown in the figure, Figure 1 and Figure 2 The motor 5 is located on the side of the mounting plate 1 away from the roller 4. The motor 5 is arranged on the side of the mounting plate 1 away from the roller 4, which effectively avoids the direct influence of the vibration generated during the operation of the motor 5 on the roller 4 and the pole piece running, and ensures the stability of the pole piece running on the roller 4. In addition, this layout not only can reasonably utilize the space, but also can facilitate independent maintenance and repair of the motor 5.

[0055] According to an embodiment of the present application, as shown in the figure, Figure 1 and Figure 2 Figure 1 Figure 2 The motor 5 is fixed on the mounting plate 1 through the motor mounting seat 8. The motor 5 is fixed on the mounting plate 1 through the motor mounting seat 8, which can ensure that the motor 5 will not displace or shake during operation, thereby ensuring the stability and accuracy of power output.

[0056] According to an embodiment of the present application, the motor mounting seat 8 is connected with the mounting plate 1 through fasteners. The motor mounting seat 8 is connected with the mounting plate 1 through fasteners, which can make the installation and disassembly of the motor 5 more convenient and efficient, and improve the maintainability of the motor 5.

[0057] Although the embodiments of the present application are described in combination with the drawings, various modifications and variations can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A tension regulating device for a pole piece coating process, characterized by, The utility model relates to a kind of battery pole piece roll-over device, including: Mounting plate (1); Swing arm shaft (2), rotatably connected with the mounting plate (1); Angle sensor (3), disposed on the swing arm shaft (2); Roller (4) for supporting battery pole piece;The roller (4) is disposed side by side with the swing arm (201) by swing arm (201) and is rotatably connected with the swing arm (201); Motor (5) has driving end, and the driving end of the motor (5) is connected with the swing arm shaft (2); Controller, electrically connected with the motor (5) and the angle sensor (3), for according to the rotation angle information of the swing arm shaft (2) collected by the angle sensor (3), control the rotation direction and start-stop of the motor (5).

2. The tension adjustment device of claim 1, wherein, Further comprising transmission assembly (6), the motor (5) drives the swing arm shaft (2) to rotate by the transmission assembly (6);One end of the swing arm shaft (2) extends out of the mounting plate (1), and the transmission assembly (6) is located on the end of the swing arm shaft (2) extending out of the mounting plate (1).

3. The tension adjustment device of claim 2, wherein, The transmission assembly (6) includes driving pulley (601) and the driven pulley (602) engaged with the driving pulley (601), the driving pulley (601) is arranged on the output end of the motor (5), and the driven pulley (602) is arranged on the swing arm shaft (2).

4. The tension adjustment device of claim 2, wherein, The transmission assembly (6) includes driving pulley (601), driven pulley (602) and synchronous belt (603) engaged with the driving pulley (601) and the driven pulley (602), the driving pulley (601) is arranged on the output end of the motor (5), and the driven pulley (602) is arranged on the swing arm shaft (2).

5. A tension adjusting device according to claim 3 or 4, characterised in that The angle sensor (3) is encoder, and the encoder is coaxially arranged on the end of the swing arm shaft (2) extending out of the mounting plate (1) and the driven pulley (602).

6. The tension regulating device of any one of claims 1 to 4, wherein, The mounting plate (1) is a pair, and the swing arm shaft (2) is located between the pair of mounting plates (1) and is connected with the mounting plate (1) by bearing (7).

7. The tension regulating device of any one of claims 1 to 4, wherein, The swing arm (201) is a pair, and the roller (4) is located between the pair of swing arms (201) and is connected with the swing arm (201) by bearing (7).

8. The tension adjustment device of any one of claims 1 to 4, wherein, The motor (5) is located on the side of the mounting plate (1) away from the roller (4).

9. The tension adjustment device of any one of claims 1 to 4, wherein, The motor (5) is fixed on the mounting plate (1) by motor mounting seat (8).

10. The tension adjustment device of claim 9, wherein, The motor mounting seat (8) is connected with the mounting plate (1) by fastener.

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