Pressing wheel with pressure control device and winding device

Abstract

The utility model provides a pinch roller with a pressure control device and a winding device, wherein the pressure applied by the pinch roller can be adjusted. The pinch roller with the pressure control device comprises a pinch roller (5), a supporting part (7) and the pressure control device, the pinch roller (5) has an axial direction (X) and a radial direction (Y) and can pivot around the axial direction (X) and make contact with and press the coiled material in the radial direction (Y), the pressure control device comprises a pressure adjusting unit, and the pressure adjusting unit comprises an adjusting part (8). The adjusting part (8) is arranged between the pressing wheel (5) and the supporting part (7) in the radial (Y) direction, and the distance between the pressing wheel (5) and the supporting part (7) is changed along with the movement of the adjusting part (8) by moving the adjusting part (8) in the axial (X) direction.

Description

Technical Field

[0001] The present application relates to a pressure wheel with a pressure control device and a winding device. Background Art

[0002] In the production process of lithium battery pole pieces, the pole pieces need to be rolled up. For example, after a large roll of pole pieces is cut, the pole pieces obtained after cutting need to be rolled up again into small rolls. During the rolling process, a pressing wheel is usually used to press the coil to prevent the coil from loosening. Utility Model Content

[0003] However, depending on the state of the pole piece, the pressing wheel may press the coil excessively or insufficiently.

[0004] Therefore, an object of the present application is to provide a pressure wheel and a winding device having a pressure control device capable of adjusting the pressure applied by the pressure wheel.

[0005] According to the present application, a pressure wheel with a pressure control device is provided, which includes a pressure wheel, a support portion and a pressure control device. The pressure wheel has an axial direction and a radial direction, can pivot around the axial direction and contact and press the coil in the radial direction. The pressure control device includes a pressure regulating unit, and the pressure regulating unit includes an regulating portion. The regulating portion is arranged between the pressure wheel and the support portion in the radial direction, and moves in the axial direction by the regulating portion, so that the distance between the pressure wheel and the support portion changes with the movement of the regulating portion.

[0006] In at least one embodiment, the adjusting portion has a first end and a second end in the axial direction, and the size of the first end gradually decreases toward the second end to form a trapezoidal block shape, so that the distance between the pressure wheel and the support portion changes linearly with the movement of the adjusting portion.

[0007] In at least one embodiment, the pressure regulating unit is disposed on both sides of the pressure wheel in the axial direction.

[0008] In at least one embodiment, the pressure regulating unit also includes a regulating part driving component, which is connected to the regulating part, and the regulating part can move under the drive of the regulating part driving component, and the regulating part driving component includes a cylinder, a hydraulic cylinder, an electric cylinder, a linear motor or a servo motor.

[0009] In at least one embodiment, the pressure control device further comprises at least one support driving member connected to the support, and the support can move under the drive of the support driving member, so that the position of the pressure wheel changes with the movement of the support.

[0010] In at least one embodiment, a support driving component is respectively connected to the two ends of the support part in the axial direction, and the support part can be driven independently of each other. The support driving component includes a cylinder, a hydraulic cylinder, an electric cylinder, a linear motor or a servo motor.

[0011] In at least one embodiment, the pressure control device further includes a sensor unit and a controller, and the controller is used to adjust the pressure of the pressure wheel according to information detected by the sensor unit.

[0012] In at least one embodiment, the sensor unit includes at least one of a pressure sensor and a roll diameter sensor.

[0013] According to the present application, a winding device is provided, which includes a pressure wheel with a pressure control device as described above, a first support roller, a second support roller and a winding roller, wherein the pressure wheel is capable of pivoting around the axial direction and contacting and pressing the coil wound on the winding roller in the radial direction, and the first support roller and the second support roller respectively rotate in opposite directions to convey the coil to the winding roller.

[0014] In at least one embodiment, a coil diameter sensor is further included, and the coil diameter sensor can detect the coil diameter of the coil in real time.

[0015] According to the present application, a pressing wheel and a winding device having a pressure control device capable of adjusting the pressure applied by the pressing wheel can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram for explaining a winding device according to one embodiment of the present application.

[0017] Figure 2 It is a schematic diagram for explaining a pressure wheel having a pressure control device according to one embodiment of the present application.

[0018] Figure 3 It is a schematic diagram for explaining a partial connection structure of a pressure wheel having a pressure control device according to an embodiment of the present application.

[0019] Description of Reference Numerals

[0020] 1 first support roller; 2 second support roller; 3 roll diameter sensor; 4 winding roller; 5 pressure wheel; 50 core shaft; 6 pressure sensor; 7 support part; 70 connecting frame; 701 main body; 702 arm; 702a extension end of arm; 703 connecting part; 703a rod; 703b head; 71 hole; 8 adjustment part; 9 adjustment part driving member; 10 support part driving member; 100 piston rod; 11 coil; 12 connecting member; X axial direction; X1 left side; X2 right side; Y radial direction. DETAILED DESCRIPTION

[0021] The exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are only used to teach those skilled in the art how to implement the present application, and are not intended to exhaust all possible methods of the present application, nor to limit the scope of the present application.

[0022] The following uses the pole piece of a lithium battery as an example to specifically describe the pressure wheel with a pressure control device and the winding device of the present application. However, the present application is not limited thereto, and the pressure wheel with a pressure control device can be applied to various fields requiring pressing operations, for example, it can be applied to the winding of various sheet materials, especially the winding of metal sheets.

[0023] Regarding winding, center winding is a winding method in which the film roll core is directly driven by a motor. The torque acting on its core is transmitted layer by layer through the film. When the tension is not large, it is more likely to cause slippage within the layer. Therefore, center winding is more suitable for smoother and pressure-sensitive films and can be rolled into tighter film rolls.

[0024] The structural components of the winder may include a tension detection roller, a flattening roller, a tracking roller, a winding roller, a turntable, an empty winding core, and the like.

[0025] The tension detection roller is the main component for controlling the reasonable tension of the film when it is rolled up. Usually, the tension of the film is detected by the pressure sensor under the bearings at both ends of the tension detection roller. The detected signal passes through the electronic circuit to control the speed of the winding motor to ensure the appropriate winding tension. The flattening roller is used to flatten the film and eliminate some longitudinal wrinkles caused by the tensile stress of the film.

[0026] A tracking roller (also called a pressure roller) that can change its position is installed in front of the winding core of the winder. Its main function is to press the film against the winding core to implement contact winding or small gap winding, so as to quickly transfer the flat film to the winding core and achieve the purpose of flat winding. At the same time, with the help of the tracking roller, a certain pressure is applied to the mother roll to timely remove the air between the film layers during winding so that the mother roll does not become loose.

[0027] The winding roller is driven by a winding motor, and the control system of the winding speed is networked with the driving system of the stretching machine, synchronized with the stretching machine, and controlled by the feedback of the tension controller.

[0028] Regarding the turntable and the empty roll core, when the film fills up a core shaft, it is not allowed to stop and replace the roll core, so the turntable rotates back 180°, the parent roll rotates out, the empty roll core enters the winding position, and then the film is cut off, the film is attached to the new roll core, and the winding continues.

[0029] <Rewinding device>

[0030] In one embodiment of the present application, Figure 1 As shown, during the winding process, the pole piece passes through the first support roller 1 and the second support roller 2 in sequence, and then reaches the winding roller 4. As the winding roller 4 rotates, the pole piece is wound around the winding roller 4 into a coil 11. The first support roller 1 and the second support roller 2 rotate in opposite directions, respectively, so as to transfer the coil to the winding roller 4.

[0031] In addition, a tension sensing roller and a speed changer may be provided to control the rotation speed of the winding roller 4 according to the detected tension of the pole piece, thereby controlling the tension of the pole piece during the winding process according to the state of the supplied pole piece. Thus, the winding can be performed stably.

[0032] like Figure 1 and Figure 2 As shown, a pressing wheel 5 is provided near the coil 11, and the central axis of the pressing wheel 5 is parallel to the central axis of the coil 11. During the winding process, the pressing wheel 5 moves along the radial direction Y (in Figure 2 In the vertical direction (in the vertical direction), the pressure is applied to the pole piece at the coil 11, so that the coil 11 remains compact and flat, which is convenient for subsequent processing, transportation or storage; in other words, there is contact pressure between the pressing wheel 5 and the coil 11, and the pressing wheel 5 and the coil 11 rotate at the same linear speed, and the coil 11 is pressed. Preferably, in the axial direction X (in the vertical direction) of the coil 11, the pressure is applied to the pole piece at the coil 11, so that the coil 11 remains compact and flat, which is convenient for subsequent processing, transportation or storage; in other words, there is contact pressure between the pressing wheel 5 and the coil 11, and the pressing wheel 5 and the coil 11 rotate at the same linear speed, and the coil 11 is pressed. Figure 2 In the entire range of the left and right directions (in the middle), the pressure wheel 5 applies pressure to the pole piece transmitted from the second support roller 2. In addition, preferably, the central axis of the coil 11 is perpendicular to the vertical direction, and the pressure wheel 5 presses the coil 11 from above in the vertical direction.

[0033] As the pressing wheel 5, for example, a ceramic pressing wheel, a stainless steel pressing wheel, a chrome-plated pressing wheel, etc. can be used. A typical pressing wheel form can be a roller.

[0034] <Pressing wheel with pressure control device>

[0035] The winding device of the present application includes a pressure wheel with a pressure control device. The pressure control device is used to control and adjust the pressure applied by the pressure wheel 5 to the coil 11 according to the winding state. Hereinafter, the "pressure applied by the pressure wheel 5 to the coil 11" is sometimes referred to as "pressure wheel pressure".

[0036] The pressure wheel with pressure control device may include a pressure wheel 5, a support portion 7 and a pressure control device. The pressure wheel 5 may have an axial direction X and a radial direction Y, and may be pivotable around the axial direction X and contact and press the coil 11 in the radial direction Y. The pressure direction of the pressure wheel is along the radial direction Y, and therefore, hereinafter, it is sometimes recorded as the pressure direction Y of the pressure wheel.

[0037] like Figure 2As shown, the pressure control device may be provided with two pressure regulating units, and the two pressure regulating units are respectively provided on both sides of the axial direction X of the pressure wheel 5 (at Figure 2 In the example, the left side X1 and the right side X2 are shown, and each includes an adjustment portion 8. In the pressure direction Y of the pressure wheel, the adjustment portion 8 is arranged between the pressure wheel 5 and the support portion 7.

[0038] On the left side X1 and the right side X2 in the axial direction X, the distance between the pressure wheel 5 and the support portion 7 changes with the movement of the corresponding adjustment portion 8. For example, by moving the adjustment portion 8 along the axial direction X, the distance between the pressure wheel 5 and the support portion 7 in the pressure wheel pressure direction Y can be increased or decreased.

[0039] In addition, in the present application, it is also possible to make the pressure wheel 5 approach or move away from the coil 11 by moving the support portion 7 along the pressure wheel pressure direction Y. By moving the support portion 7 closer to the coil 11 along the pressure wheel pressure direction Y, the distance between the pressure wheel 5 and the winding roller 4 can be reduced, thereby increasing the pressure applied by the pressure wheel 5 to the coil 11. By moving the support portion 7 away from the coil 11 along the pressure wheel pressure direction Y, the distance between the pressure wheel 5 and the winding roller 4 can be increased, thereby reducing the pressure applied by the pressure wheel 5 to the coil 11.

[0040] In one embodiment of the present application, Figure 1 and Figure 2 As shown, the pressing wheel 5 can be sleeved on the core shaft 50 , and in the axial direction X, both ends of the core shaft 50 are exposed to the outside of the pressing wheel 5 , that is, both ends of the core shaft 50 are exposed on the left side X1 and the right side X2 of the pressing wheel 5 .

[0041] like Figure 3 As shown, a hole 71 may be provided at the center of the support portion 7 in the axial direction X, and the hole 71 extends along the pressure direction Y of the pressure wheel. In the present application, the hole 71 may be a through hole penetrating the support portion 7 .

[0042] In addition, a connecting frame 70 may be provided between the pressing wheel 5 and the supporting portion 7. The connecting frame 70 has a main body 701, two arm portions 702, and a connecting portion 703. The main body 701 may be in the shape of a plate with a predetermined thickness, and the two arm portions 702 extend from both ends of the main body 701 in the axial direction X along the pressing wheel pressure direction Y, and the extension length is greater than the radius of the pressing wheel 5. The extension ends 702a of the two arm portions 702 are respectively connected to both ends of the core shaft 50 in the axial direction X.

[0043] A connecting portion 703 is provided at the center of the main body 701, and the connecting portion 703 extends from the main body 701 toward the opposite side of the arm 702 in the pressing direction Y of the pressing wheel. The connecting portion 703 includes a rod portion 703a and a head portion 703b.

[0044] When the hole 71 is a through hole, the size of the rod 703a is larger than the size of the hole 71 in the pressure direction Y of the pressing wheel. In the direction perpendicular to the pressure direction Y of the pressing wheel, the size of the rod 703a is smaller than the size of the hole 71, and the size of the head 703b is larger than the size of the hole 71. Thus, the head 703b can be hooked on the side of the hole 71 opposite to the side where the main body 701 is located, and the rod 703a can move in the hole 71 along the pressure direction Y of the pressing wheel.

[0045] When the distance between the support portion 7 and the main body 701 increases, the rod portion 703a moves toward the coil 11 side in the hole 71. When the distance between the support portion 7 and the main body 701 decreases, the rod portion 703a moves toward the opposite side of the coil 11 side in the hole 71. In addition, by inserting the rod portion 703a into the hole 71, the movement of the pressure wheel 5 relative to the support portion 7 in the axial direction X can be restricted.

[0046] In addition, in the present application, the adjusting portion 8 can be configured to be movable along the upper surface of the main body 701. In addition, the adjusting portion 8 has a first end 81 and a second end 82 in the axial direction X, and the dimension of the adjusting portion 8 in the pressure wheel pressure direction Y gradually decreases from the first end 81 to the second end 82.

[0047] For example, on the left side X1, by moving the adjusting portion 8 from the left side X1 to the right side X2, the portion of the adjusting portion 8 between the supporting portion 7 and the main body 701 increases, and the distance between the supporting portion 7 and the main body 701 increases, which can reduce the distance between the pressing wheel 5 and the winding roller 4, thereby increasing the pressure applied by the pressing wheel 5 to the coil 11. By moving the adjusting portion 8 from the right side X2 to the left side X1, the portion of the adjusting portion 8 between the supporting portion 7 and the main body 701 decreases, and the distance between the supporting portion 7 and the main body 701 decreases, which can increase the distance between the pressing wheel 5 and the winding roller 4, thereby reducing the pressure applied by the pressing wheel 5 to the coil 11.

[0048] On the right side X2, by moving the adjusting portion 8 from the right side X2 to the left side X1, the portion of the adjusting portion 8 between the supporting portion 7 and the main body 701 increases, and the distance between the supporting portion 7 and the main body 701 increases, which can reduce the distance between the pressing wheel 5 and the winding roller 4, thereby increasing the pressure applied by the pressing wheel 5 to the coil 11. By moving the adjusting portion 8 from the left side X1 to the right side X2, the portion of the adjusting portion 8 between the supporting portion 7 and the main body 701 decreases, and the distance between the supporting portion 7 and the main body 701 decreases, which can increase the distance between the pressing wheel 5 and the winding roller 4, thereby reducing the pressure applied by the pressing wheel 5 to the coil 11.

[0049] In addition, an adjusting portion driving member 9 may be provided to drive the adjusting portion 8 to move. The adjusting portion driving member 9 is connected to the first end 81 of the adjusting portion 8 to drive the adjusting portion 81 to move.

[0050] like Figure 2 As shown, in one embodiment of the present application, the regulating portion 8 may be a trapezoidal block, the cross-sectional shape of which is a trapezoid, and the cross-sectional shape refers to a cross-sectional shape including the pressure direction Y of the pressure wheel and the moving direction of the regulating portion 8. And a set of parallel opposite sides of the trapezoid extend along the pressure direction Y of the pressure wheel, and the ends of the set of opposite sides are respectively a first end 81 and a second end 82. The regulating portion driving member 9 may be, for example, a cylinder. The piston rod of the cylinder is connected to the first end 81 of the trapezoidal block, and the trapezoidal block moves with the movement of the piston rod.

[0051] It can be understood that the adjusting part driving member 9 is not limited to using or including a cylinder, for example, the adjusting part driving member 9 can also use or include a hydraulic cylinder, an electric cylinder, a linear motor, etc. In one example, the adjusting part driving member 9 can include a servo motor.

[0052] In addition, the support portion 7 can be set as a hollow round rod. The cylinder serving as the adjusting portion driving member 9 can be built into the hollow round rod. Moreover, a notch is formed in a part of the hollow round rod, and at the end on the opposite side of the piston rod where the piston is located, that is, within the stroke range of the free end, for connecting the piston rod of the cylinder with the trapezoidal block and for moving the trapezoidal block. The size of the notch is set so as not to hinder the movement of the trapezoidal block. For example, it can be set so that the free end of the piston rod of the cylinder is directly connected to the trapezoidal block by threaded connection, welding, etc., and the trapezoidal block is pushed to move by the movement of the piston rod of the cylinder. In addition, the trapezoidal block is sandwiched between the support portion 7 and the main body 701, and can move between the support portion 7 and the main body 701, so that the support portion 7 can apply pressure to the pressure wheel 5 via the trapezoidal block, and then can apply pressure to the coil 11.

[0053] As the piston rod moves, the trapezoidal block moves along the axial direction X, so that the size of the portion of the trapezoidal block disposed between the support portion 7 and the main body 701 changes. Where the trapezoidal block is located, the distance between the support portion 7 and the main body 701 changes accordingly, thereby changing the distance between the pressure wheel 5 and the winding roller 4, and changing the pressure applied by the pressure wheel 5 to the coil 11.

[0054] In addition, a support driving member 10 may be provided on the left side X1 and the right side X2 of the support 7, respectively, and the support 7 can be moved by the support driving member 10. The support driving member 10 on the left side X1 and the support driving member 10 on the right side X2 can be driven independently of each other or synchronously with each other. By driving the support driving members 10 on the left side X1 and the right side X2 independently of each other, the two ends of the support 7 can be driven to move independently of each other. By driving the support driving members 10 on the left side X1 and the right side X2 synchronously with each other, the support 7 can be driven to move synchronously as a whole.

[0055] As an example of the support driving member 10, a cylinder can be used. Figure 1 and Figure 2 As shown, on the left side X1, the piston rod 100 of the cylinder is connected to the end of the support part 7 via the connecting member 12, and the end of the left side X1 of the support part 7 is driven to move by moving the piston rod 100 along the pressure direction Y of the pressure roller. Similarly, on the right side X2, the piston rod 100 of the cylinder is connected to the end of the support part 7 via the connecting member 12, and the end of the right side X2 of the support part 7 is driven to move by moving the piston rod 100 along the pressure direction Y of the pressure roller. By making the piston rod 100 on the left side X1 and the piston rod 100 on the right side X2 move synchronously in the pressure direction Y of the pressure roller, the support part 7 as a whole is driven to move synchronously in the pressure direction Y of the pressure roller.

[0056] It can be understood that the support driving member 10 is not limited to using or including a cylinder, for example, the support driving member 10 can also use or include a hydraulic cylinder, an electric cylinder, a linear motor, etc. In one example, the support driving member 10 can include a servo motor.

[0057] However, the present invention is not limited thereto, and a support driving member 10 may be provided at the central portion of the support portion 7 in the axial direction X to drive the support portion 7 to move synchronously as a whole. In addition, the support portion 7 may also be moved along the guide rail.

[0058] <Sensor Unit>

[0059] In the present application, the pressure control device may further include a sensor unit and a controller. The controller is used for control based on information detected by the sensor unit, and the pressure applied by the pressure wheel 5 to the coil 11 can be adjusted in real time according to the winding state.

[0060] As a controller, for example, a programmable logic controller, i.e., a PLC, can be used. Various information is pre-stored in the controller, such as the tension of the pole piece, the winding diameter of the coil, the initial value of the pressure roller pressure, the target value, the expected pole piece state, the expected winding state, the initial state of the adjustment part 8, and the size information. Here, the target value of the pressure roller pressure can be appropriately set according to the pole piece state so as to achieve the expected winding effect, which can include tight coil compression, neat winding, flat pole piece edge, no serpentine and drum edge, etc.

[0061] In addition, the controller can control each driving part in real time according to the received detection signal and adjust the pressure of the pressure wheel to achieve the expected winding state.

[0062] The sensor unit may include various suitable sensors.

[0063] In one embodiment of the present application, a roll diameter sensor 3 (at Figure 1 The coil diameter sensor 3 is used to detect the coil diameter of the coil 11 in real time, and the detected coil diameter is converted into a signal and transmitted to the controller.

[0064] For the two pressure regulating units, a pressure sensor 6 may be provided in each regulating portion 8. For example, the pressure sensor 6 may be sandwiched between the regulating portion 8 and the main body 701. The pressure sensor 6 is used to detect the pressure between the regulating portion 8 and the main body 701, and the detected pressure is converted into a signal and transmitted to the controller.

[0065] In the present application, a display unit may be provided to display various information such as the pressure of the pressure wheel. In addition, the display unit may also have an alarm function, which sounds an alarm when an abnormality occurs during winding to alert the operator. Thus, during the winding process, the operator can monitor in real time and respond promptly when an abnormality occurs. As the display unit, for example, a liquid crystal display screen may be used.

[0066] <Adjustment of pressure roller pressure>

[0067] In one embodiment of the present application, the following control may be performed to adjust the pressure of the pressure wheel.

[0068] According to the measured pressure detected by the pressure sensor 6, the signal is transmitted to the PLC, and the PLC judges the signal. According to the judgment result, it is selected whether to control the supporting part driving component 10 or the adjusting part driving component 9 separately, or to control both the supporting part driving component 10 and the adjusting part driving component 9 at the same time.

[0069] In addition, according to the measured roll diameter detected by the roll diameter sensor 3, the signal is transmitted to the PLC, and the PLC judges the signal according to the pre-set linear relationship between the roll diameter and the pressure of the pressure wheel, and according to the judgment result, it is selected to control the support part drive member 10, or the adjustment part drive member 9, or to control both the support part drive member 10 and the adjustment part drive member 9. Here, the linear relationship between the roll diameter and the pressure of the pressure wheel means that the pressure applied by the pressure wheel 5 to the pole piece increases with the increase of the roll diameter.

[0070] When the PLC selects to control the support driving member 10, the PLC transmits a signal to the support driving member 10 on one side (X1 side or X2 side) or both sides (X1 side and X2 side) where pressure adjustment is required, and controls the movement of the support 7 along the pressure direction Y of the pressure wheel to make the pressure reach the target value. Among them, for the pressure adjustment performed by the support driving member 10, the X1 side and the X2 side can be performed simultaneously or sequentially.

[0071] When the PLC selects to control the regulating unit driving member 9, the PLC transmits a signal to the regulating unit driving member 9 on one or both sides where pressure adjustment is required, and controls the movement of the regulating unit 8 along the axial direction X so that the pressure reaches the target value. Among them, for the pressure adjustment performed by the regulating unit driving member 9, the X1 side and the X2 side can be performed simultaneously or sequentially.

[0072] When the PLC selects to control both the supporting portion driving member 10 and the adjusting portion driving member 9, the supporting portion driving member 10 may be controlled as described above first, and then the adjusting portion driving member 9 may be controlled as described above. Thus, the supporting portion driving member 10 may be used to perform rough adjustment first, and then the adjusting portion driving member 9 may be used to perform fine adjustment.

[0073] After the pressure is adjusted, the real-time detected information is fed back to the PLC, and the PLC continues to control according to the real-time detected information. Thus, the automatic control of the pressure wheel pressure in the entire winding process is achieved through the feedback mechanism.

[0074] However, it is not limited to this. In the present application, the specific control process may also be omitted, added or changed in part as needed.

[0075] <Effects>

[0076] According to the present application, the adjusting portion 8 can be moved in the axial X direction, so that the distance between the pressing wheel 5 and the supporting portion 7 changes with the movement of the adjusting portion 8. Thus, the pressure applied by the pressing wheel 5 to the coil 11 can be adjusted, and the situation where the pressing wheel 5 presses the coil 11 excessively or insufficiently can be prevented.

[0077] According to the present application, the adjusting portion 8 can be set to a trapezoidal block shape, thereby being able to achieve pressure adjustment of the pressing wheel 5 on the coil 11 with a simple structure, which can reduce costs.

[0078] According to the present application, two pressure regulating units may be provided, and the two pressure regulating units are respectively provided on the left side X1 and the right side X2 of the pressing wheel 5, and the pressing wheel pressure is regulated independently of each other. Therefore, the pressing wheel pressures on the left side X1 and the right side X2 can be controlled, and even if the pole piece states of the coil 11 are inconsistent on the left side X1 and the right side X2, they can be precisely controlled in a targeted manner to achieve the expected winding state.

[0079] According to the present application, a support driving member 10 is also provided to move the support 7. The pressure roller pressure is adjusted by moving the support 7 along the pressure roller pressure direction Y. Furthermore, by providing the support driving member 10 on the left side X1 and the right side X2 of the support 7, the pressure roller pressure on the left side X1 and the right side X2 can also be controlled. Thus, the pressure roller pressure can be controlled more accurately by first using the movement of the support 7 for coarse adjustment and then using the two pressure adjustment units for fine adjustment.

[0080] In addition, according to the present application, a sensor unit and a controller are also provided. According to the information detected by the sensor unit, the controller is used for control, thereby being able to adjust the pressure of the pressure wheel in real time according to the winding state. Furthermore, automatic control of the pressure of the pressure wheel during the entire winding process is achieved.

[0081] It should be understood that the above embodiments, examples or examples are only exemplary and are not intended to limit the present application. Those skilled in the art may make various modifications and changes to the above embodiments, examples or examples under the guidance of the present application without departing from the scope of the present application.

[0082] <Modification>

[0083] i) In the above embodiment, the adjustment part 8 is described by taking a trapezoidal block as an example. However, it is not limited thereto, and other appropriate structures may be used as long as the distance between the support part 7 and the pressing wheel 5 in the pressing wheel pressure direction Y changes with the movement of the adjustment part 8. For example, the adjustment part 8 may include a block structure with a triangular cross-sectional shape, and the cross-sectional shape refers to a cross-sectional shape including the pressing wheel pressure direction Y and the moving direction of the adjustment part 8.

[0084] ii) In the above embodiment, two pressure regulating units are used as an example for description, but the invention is not limited thereto. Only one pressure regulating unit may be provided, or more than three pressure regulating units may be provided according to the position where the pressure of the pressure wheel needs to be adjusted.

[0085] iii) In the above embodiment, the connecting frame 70 is used as an example for explanation, but it is not limited thereto, and other appropriate connecting structures may be used as long as the distance between the pressing wheel 5 and the supporting portion 7 in the pressing wheel pressure direction is not hindered.

Claims

1. A pressure wheel with a pressure control device, characterized in that: It includes a pressure wheel, a support part and a pressure control device, The pressing wheel has an axial direction and a radial direction, and can pivot around the axial direction and contact and press the coil in the radial direction. The pressure control device includes a pressure regulating unit, which includes a regulating part. The regulating part is arranged between the pressure wheel and the support part in the radial direction. The regulating part moves in the axial direction so that the distance between the pressure wheel and the support part changes with the movement of the regulating part.

2. The pressure wheel with a pressure control device according to claim 1, characterized in that: The adjusting portion has a first end and a second end in the axial direction, and the size of the first end gradually decreases toward the second end to form a trapezoidal block shape, so that the distance between the pressure wheel and the supporting portion changes linearly with the movement of the adjusting portion.

3. The pressure wheel with pressure control device according to claim 2, characterized in that: The pressure regulating unit is arranged on both sides of the pressure wheel in the axial direction.

4. The pressure wheel with pressure control device according to claim 3, characterized in that: The pressure regulating units further include a regulating part driving member, the regulating part driving member is connected to the regulating part, and the regulating part can move under the driving of the regulating part driving member. The adjusting part driving component includes a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, a linear motor or a servo motor.

5. The pressure wheel with pressure control device according to claim 1, characterized in that: The pressure control device further comprises at least one support driving member, wherein the support driving member is connected to the support, and the support can move under the driving of the support driving member, so that the position of the pressure wheel changes with the movement of the support.

6. The pressure wheel with pressure control device according to claim 5, characterized in that: Two ends of the support part in the axial direction are respectively connected with a support part driving component, which can drive the support part independently of each other. The support part driving component includes a cylinder, a hydraulic cylinder, an electric cylinder, a linear motor or a servo motor.

7. The pressure wheel with a pressure control device according to any one of claims 1 to 6, characterized in that: The pressure control device further comprises a sensor unit and a controller. The controller is used to adjust the pressure of the pressure wheel according to information detected by the sensor unit.

8. The pressure wheel with pressure control device according to claim 7, characterized in that: The sensor unit includes at least one of a pressure sensor and a roll diameter sensor.

9. A winding device, characterized in that: The method comprises a pressure wheel with a pressure control device as described in any one of claims 1 to 8, a first support roller, a second support roller and a winding roller, The pressure wheel is capable of pivoting about the axial direction and contacting and pressing the coil wound on the winding roller in the radial direction. The first support roller and the second support roller rotate in opposite directions to transfer the coiled material to the winding roller.

10. The winding device according to claim 9, characterized in that: It also includes a coil diameter sensor, which can detect the coil diameter of the coil in real time.

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