A winding and unwinding correction device, a winding and unwinding system and a control method

Abstract

This invention discloses a winding and unwinding correction device, a winding and unwinding system, and a control method, relating to the field of web material correction technology, and addressing the problems of large space occupation and complex assembly in correction devices. The winding and unwinding correction device includes: a mounting frame; a roll, rotatably and axially movable, connected to the mounting frame for winding web material; a rotation drive assembly, disposed on the mounting frame, with its rotation drive end axially movablely connected to one end of the roll for driving the roll to rotate; and a linear drive assembly, disposed on the mounting frame, with its linear drive end rotatably connected to the other end of the roll for driving the roll to move axially. Because the winding and unwinding correction device integrates the rotation and linear correction movement of the roll onto a single roll, the overall structure is compact, reducing space occupation. Furthermore, assembly only requires connecting one roll to the linear drive assembly and rotation drive assembly at both ends, simplifying the assembly process.

Description

Technical Field

[0001] This invention relates to the field of roll winding and unwinding technology, and in particular to a winding and unwinding correction device, winding and unwinding system and control method. Background Technology

[0002] The unwinding and rewinding operations of rolled strip materials (hereinafter referred to as rolls) require attention to lateral deviation of the rolls, which usually necessitates a deviation correction device to correct the deviation during the unwinding and rewinding processes. One existing unwinding deviation correction device is... Figure 10 As shown, it includes a parallel winding mechanism 01 and a correction mechanism 02. The winding mechanism 01 is driven to rotate by a motor. The correction mechanism 02 has a guide rail mounting platform 03, two parallel guide rails, a slider, and an electric cylinder drive component. The guide rails are mounted on the guide rail mounting platform 03, and a slider is slidably mounted on each guide rail. The electric cylinder drive component drives the slider to move left and right on the guide rail. The entire winding mechanism 01 is connected to the slider. By moving the slider on the guide rail, the entire winding mechanism 01 moves left and right to perform correction. Because the guide rail mounting platform 03 and the winding mechanism 01 are arranged separately and in parallel, the overall structure occupies a lot of space. Moreover, the installation process requires adjusting the levelness and parallelism between the guide rails, adjusting the levelness of the winding shaft, and the parallelism between the winding shaft and the guide rails, etc., making the assembly process relatively complex. Summary of the Invention

[0003] The purpose of this invention is to provide a winding and unwinding correction device, a winding and unwinding system, and a control method, with a compact structure and simplified assembly process.

[0004] In a first aspect, the present invention provides a winding and unwinding correction device, comprising:

[0005] Mounting rack;

[0006] A reel, rotatably and axially movable, is connected to a mounting frame for winding a roll of material;

[0007] A rotation drive assembly is mounted on a mounting bracket. The rotation drive end of the rotation drive assembly is axially movable to one end of the reel, and is used to drive the reel to rotate.

[0008] A linear drive assembly is mounted on a mounting bracket. The linear drive end of the linear drive assembly is rotatably connected to the other end of the reel, and is used to drive the reel to move axially.

[0009] When the above technical solution is adopted, if the roll material deviates along the axial direction of the roll during the unwinding or winding process driven by the rotary drive assembly, the other end of the same roll can be moved axially by the linear drive assembly to correct the deviation, without stopping the rotary drive assembly from driving the roll to rotate. Since the unwinding and winding correction device in this application integrates the rotation and linear correction movement of the roll onto a single roll, with one end driven by rotation and the other by linear drive, compared to the existing structure where the guide rail mounting platform and the winding mechanism's roll are arranged separately and parallel, this application makes the overall structure more compact and simpler, reduces the number of parts used, greatly reduces space occupation, and only requires connecting one roll to the linear drive assembly and the rotary drive assembly at both ends during assembly. It eliminates the need to adjust the levelness and parallelism between the guide rails, adjust the levelness of the roll, and adjust the parallelism between the roll and the guide rail, simplifying the assembly process. In addition, since there is no guide rail mounting platform obstructing the circumference of the reel, the loading and unloading angle and direction of the reel are not restricted, making assembly more convenient.

[0010] In some possible implementations, a splined sleeve is fixed to the rotary drive end of the rotary drive assembly, and the splined sleeve is rotatably connected to the mounting bracket. A splined shaft is fixed to one end of the reel, and the splined shaft is axially movably fitted inside the splined sleeve. This configuration, through the cooperation of the splined shaft and the splined sleeve, achieves a rotary connection between the rotary drive end of the rotary drive assembly and one end of the reel, and allows the reel to move axially relative to the rotary drive assembly for correction movement.

[0011] In some possible implementations, a push rod is fixed to the linear drive end of the linear drive assembly, and a rotary joint is fixed to the other end of the reel. The push rod and the rotary joint are rotatably connected, and the push rod and the rotary joint are axially limited. In this way, through the cooperation of the rotary joint and the push rod, the linear drive end of the linear drive assembly is rotatably connected to the other end of the reel, so that the linear drive end does not interfere with the rotation of the reel and can drive the reel to move axially to achieve correction.

[0012] In some possible implementations, the take-up and unwinding correction device also includes:

[0013] Sensor bracket, fixedly mounted on the mounting frame;

[0014] The sensor, mounted on the sensor bracket, is used to monitor the offset of the side edge of the unwound roll relative to the reference position of the sensor along the axial direction of the roll shaft.

[0015] The controller, connected to both the sensor and the linear drive assembly, controls the linear drive assembly to move the reel axially based on the offset, so that the side of the reel is adjusted to the reference position of the sensor.

[0016] With the above technical solution, the sensor is fixed on the mounting frame by the sensor bracket, and the reference position of the sensor is fixed. The controller controls the linear drive component to drive the roll shaft to move axially according to the offset of the side of the unwound roll relative to the reference position monitored by the sensor, so that the side of the roll is adjusted to the original reference position, thereby realizing automatic correction of the roll during the unwinding process.

[0017] In some possible implementations, the take-up and unwinding correction device also includes:

[0018] The sensor bracket is fixedly mounted on the linear drive end of the linear drive assembly and moves with the linear drive end.

[0019] The sensor is mounted on a sensor bracket, with its reference position aligned with the edge of the roll wound on the reel. The sensor is used to monitor the amount of offset of the side of the roll to be wound relative to the reference position along the axial direction of the reel.

[0020] The controller, connected to both the sensor and the linear drive assembly, controls the linear drive assembly to move the reel and sensor bracket together axially based on the offset, so that the side of the reel is adjusted to a reference position.

[0021] With the above technical solution, the sensor is fixed to the linear drive end of the linear drive assembly via a sensor bracket and can move linearly with the linear drive end. When the sensor detects that the side of the roll to be wound has shifted relative to the reference position of the sensor, that is, when it has shifted relative to the edge of the wound roll, the controller controls the linear drive assembly to drive the roll shaft and the sensor bracket to move axially together according to the offset, so that the side of the roll to be wound is aligned with the reference position, that is, the side of the roll to be wound is aligned with the edge of the already wound roll, ensuring the neatness of the edge of the wound roll, and realizing automatic correction of the roll to be wound during the winding process.

[0022] In some possible implementations, the winding and unwinding correction device also includes a guide structure mounted on the mounting frame. The guide structure's guiding direction is parallel to the axial direction of the roll, and the sensor bracket is guided and connected to the guide structure. With this configuration, as the linear drive assembly drives the sensor bracket to move axially along the roll, the axial guiding engagement between the guide structure fixed to the mounting frame and the sensor bracket prevents sensor vibration and improves monitoring accuracy.

[0023] In some possible implementations, the sensor includes a photoelectric sensor; or, the sensor includes two proximity sensors spaced apart along the axial direction of the reel.

[0024] In some possible implementations, the reel is an air-expanding shaft that can be connected to an external air source to inflate and deflate the air-expanding shaft, and to adjust the outer diameter of the air-expanding shaft, making it convenient to assemble and disassemble the material roll wound on the air-expanding shaft.

[0025] In some possible implementations, the winding and unwinding correction device also includes a rotating sealing component mounted on a mounting frame, wherein the rotating drive end of the rotating drive assembly and the mounting frame are rotatably sealed by the rotating sealing component. With this configuration, for situations where the winding or unwinding of the roll requires a sealed environment, a rotating sealing component can be provided at the connection between the rotating drive end of the rotating drive assembly and the mounting frame to achieve a rotational seal between the rotating drive end and the mounting frame.

[0026] In some possible implementations, the winding and unwinding correction device also includes a sealing bellows mounted on a mounting frame. The sealing bellows is sleeved on the linear drive end of the linear drive assembly, and the linear drive end is sealed to the mounting frame through the sealing bellows. With this configuration, for situations where the winding or unwinding of the reel requires a sealed environment, a sealing bellows can be installed at the connection between the linear drive end of the linear drive assembly and the mounting frame to achieve a sealed linear movement between the linear drive end and the mounting frame.

[0027] In some possible implementations, the linear drive assembly includes an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0028] Secondly, the present invention also provides a winding and unwinding system, including an unwinding device and a winding device, wherein the unwinding device is a winding and unwinding correction device as described in any of the above claims, and the winding device is a winding and unwinding correction device as described in any of the above claims.

[0029] Since the winding and unwinding system adopts the winding and unwinding device of the first aspect, the winding and unwinding system has the same beneficial effects as the first aspect, which will not be elaborated here.

[0030] In some possible implementations, the unwinding and take-up system further includes at least one web-correcting guide mechanism disposed between the unwinding device and the take-up device and arranged along the roll transport direction. This arrangement allows for further web-correction of the roll material in the intermediate path during transport.

[0031] In some possible implementations, the web guiding mechanism is a take-up / unwinding web guiding device as described in any of the above embodiments. This achieves the same beneficial effects as the first aspect, and will not be elaborated further here.

[0032] In some possible implementations, the unwinding and rewinding system also includes a printing table and a laser transfer table arranged sequentially between the unwinding device and the rewinding device along the roll transport direction. This enables the application of the unwinding and rewinding device in the field of laser transfer printing.

[0033] Thirdly, the present invention also provides a winding and unwinding control method, based on the winding and unwinding system described above, wherein the winding and unwinding system includes sensors and a controller, and the winding and unwinding control method includes:

[0034] The unwinding device monitors the offset of the side of the unwound roll relative to the reference position of the sensor along the axial direction of the unwinding device's shaft. The linear drive assembly of the unwinding device is controlled to drive the shaft to move axially so that the side of the roll is adjusted to the reference position of the sensor. The direction of linear movement of the unwinding device's shaft is opposite to the offset direction of the unwound roll.

[0035] And / or, based on the offset of the side of the roll to be wound relative to the reference position of the sensor along the axial direction of the roll of the winding device, the linear drive assembly of the winding device is controlled to drive the roll to move axially, so that the side of the roll to be wound is adjusted to the reference position of the sensor, wherein the linear movement direction of the roll of the winding device is the same as the offset direction of the roll to be wound, and the reference position of the sensor of the winding device is aligned with the edge of the roll wound on the roll of the winding device.

[0036] When the above technical solution is adopted, since the winding and unwinding control method of the third aspect adopts the winding and unwinding system of the second aspect, it can realize the automatic correction of the unwinding device and the winding device, and has the same beneficial effect as the first aspect and the second aspect, which will not be elaborated here. Attached Figure Description

[0037] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0038] Figure 1 This is a schematic diagram of the structure of a winding and unwinding correction device provided in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the sensor bracket and sensor of a winding and unwinding correction device provided in an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of another winding and unwinding correction device provided in an embodiment of the present invention;

[0041] Figure 4 A schematic diagram of the sensor bracket and sensor of another winding and unwinding correction device provided in an embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of the structure of the third type of winding and unwinding correction device provided in an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of the structure of the fourth type of winding and unwinding correction device provided in an embodiment of the present invention;

[0044] Figure 7 for Figure 6 A partial cross-sectional schematic diagram of the connection structure between the linear drive component and the reel in the third type of winding and unwinding correction device.

[0045] Figure 8 for Figure 6 A partial cross-sectional schematic diagram of the connection structure between the rotation drive assembly and the reel in the third type of winding and unwinding correction device.

[0046] Figure 9 This is a schematic diagram of a winding and unwinding system provided in an embodiment of the present invention;

[0047] Figure 10 This is a schematic diagram of the structure of an unwinding and correction device in the prior art.

[0048] Reference numerals: 01 winding mechanism, 02 correction mechanism, 1 linear drive assembly, 101 drive cylinder, 102 drive cylinder bracket, 103 push rod, 2 mounting bracket, 201 frame, 202 first bearing seat, 203 second bearing seat, 3 rotary joint, 4 reel, 5 roll material, 6 spline shaft, 7 spline sleeve, 8 rotary drive assembly, 801 reducer, 802 motor, 9 guide structure, 10 sensor bracket, 1001 fixing block, 1002 fixing rod group, 1003 fixing plate, 1004 clamping hole, 11 sensor, 12 wire guide, 13 sealing bellows, 14 rotating sealing component, 15 first linear bearing, 16 second linear bearing, 21 winding device, 22 printing worktable, 23 correction and guide mechanism, 24 laser transfer worktable, 25 unwinding device. Detailed Implementation

[0049] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0050] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0052] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0054] See Figure 1 and Figure 3This invention provides a winding and unwinding web-correcting device, including a mounting frame 2, a roll 4, a rotation drive assembly 8, and a linear drive assembly 1. The mounting frame 2 supports and mounts other components of the winding and unwinding web-correcting device. The mounting frame 2 can be a single, separate mounting frame, or two or more independent mounting frames, determined according to the equipment to which the winding and unwinding web-correcting device is applied. The mounting frame 2 can be part of the equipment housing, and its shape and structure are not specifically limited. The roll 4 is rotatably and axially movable to the mounting frame 2. The roll 4 can rotate relative to the mounting frame 2 and can also move axially relative to the mounting frame 2. The roll 4 has two opposing ends and is used to wind a roll material 5. The rotation drive assembly 8 is disposed on the mounting frame 2 and fixed relative to the mounting frame 2. The rotation drive end of the rotation drive assembly 8 is axially movablely connected to one end of the roll 4, and the rotation drive end can drive the roll 4 to rotate; that is, while the roll 4 is driven to rotate by the rotation drive end, it can move axially relative to the rotation drive end. The linear drive assembly 1 is mounted on the mounting frame 2 and fixed relative to the mounting frame 2. The linear drive end of the linear drive assembly 1 is rotatably connected to the other end of the spool 4. That is, the rotation of the spool 4 will not drive the linear drive end to rotate, the linear drive end will not interfere with the rotation of the spool 4, and the linear drive end can drive the spool 4 to move linearly along the axial direction.

[0055] When the winding and unwinding correction device is working, if the roll 5 deviates along the axial direction of the roll 4 while the rotation drive assembly 8 drives the roll 4 to rotate for unwinding or winding of the roll 5, the other end of the same roll 4 can be driven to move axially by the linear drive assembly 1 without stopping the rotation drive assembly 8 to drive the roll 4 to rotate. This causes the roll 4 to move linearly relative to the mounting frame 2, resulting in a relative axial displacement between the roll 4 and the unwinding / winding roll 5, thus performing a correction operation. Because the winding and unwinding correction device in this application integrates the rotation and linear correction movement of the roll 4 onto a single roll 4, with one end of the roll 4 driven for rotation and the other for linear movement, compared to the existing unwinding correction mechanism where the guide rail mounting platform and the roll of the winding mechanism are arranged separately and in parallel, this application results in a more compact and simpler overall structure, reducing the number of parts used and significantly reducing space occupation. The overall structure is more than 50% smaller than the original structure, and the cost is also reduced by more than 50%. Furthermore, during assembly, only the two ends of one roll 4 need to be connected to the linear drive component 1 and the rotation drive component 8 respectively; there is no need to adjust the levelness and parallelism between the guide rails, the levelness of the roll, or the parallelism between the roll and the guide rails, etc., simplifying the assembly process. In addition, since there is no guide rail mounting platform obstructing the circumference of the roll 4, the loading and unloading angle and direction of the roll 4 are not restricted, allowing loading and unloading at any position in the circumferential direction, making assembly more convenient.

[0056] like Figure 1 , Figure 3 and Figure 8 As shown, this embodiment provides a specific connection structure between the spool 4 and the rotation drive assembly 8. The rotation drive end of the rotation drive assembly 8 is fixed with a spline sleeve 7, which is rotatably connected to the mounting bracket 2. The rotation drive end drives the spline sleeve 7 to rotate. One end of the spool 4 is fixed with a spline shaft 6, which is axially movably sleeved inside the spline sleeve 7.

[0057] During operation, the rotation drive end of the rotation drive assembly 8 rotates, driving the spline sleeve 7 to rotate. The spline sleeve 7 then drives the spline shaft 6 and the reel 4 to rotate together, enabling the winding or unwinding of the roll material 5. The cooperation between the spline shaft 6 and the spline sleeve 7 achieves a rotatable connection between the rotation drive end of the rotation drive assembly 8 and one end of the reel 4. Furthermore, the cooperation between the spline shaft 6 and the spline sleeve 7 allows the reel 4 to move axially relative to the rotation drive end of the rotation drive assembly 8 for corrective movement.

[0058] Of course, in addition to using a splined sleeve 7 and a splined shaft 6 to cooperate with the rotating drive end and the reel 4, a key shaft and a bushing can also be used. The key shaft is fixed to the rotating drive end and has a key structure. The bushing has a keyway. The key shaft and the bushing are circumferentially limited and can move relative to each other along the axial direction, which can also realize the transmission of rotation and the movement of correction.

[0059] For example, such as Figure 8 As shown, the rotatable connection structure between the spline sleeve 7 and the mounting bracket 2 is as follows: the mounting bracket 2 includes a frame 201 and a second bearing seat 203. The second bearing seat 203 is fixed to the frame 201, and a second linear bearing 16 is fitted inside the second bearing seat 203. The spline sleeve 7 is rotatably fitted inside the second linear bearing 16. The spline sleeve 7 is rotatably connected to the frame 201 through the second bearing seat 203 and the second linear bearing 16, making the rotation of the spline sleeve 7 smoother and more stable. Of course, the spline sleeve 7 can also be directly rotatably connected to the frame 201 through a bearing bush.

[0060] like Figure 1 , Figure 3 and Figure 7As shown, this embodiment provides a specific connection structure between a linear drive assembly 1 and a reel 4. A push rod 103 is fixed to the linear drive end of the linear drive assembly 1, and a rotary joint 3 is fixed to the other end of the reel 4. The push rod 103 and the rotary joint 3 are rotatably connected, and the push rod 103 and the rotary joint 3 are axially limited. Specifically, one end of the rotary joint 3 is a sleeve hole, and the other end is a locking sleeve that can be opened radially. The locking sleeve is sleeved and fixed to the end of the reel 4. A bearing is provided in the sleeve hole at the other end, and the end of the sleeve hole has an openable end cap. The end of the push rod 103 is rotatably sleeved in the bearing in the sleeve hole, and the end of the push rod 103 passes through the end cap and is axially limited with the end cap. The push rod 103 can drive the rotary joint 3 to move axially.

[0061] During operation, when the roll material 5 deviates, the rotating shaft 4 drives the rotary joint 3 to rotate relative to the push rod 103. At this time, the linear drive end of the linear drive assembly 1 drives the push rod 103 to move axially. The push rod 103 then drives the rotary joint 3 and the roll material 4 to move axially together, thus correcting the deviation. Through the cooperation of the rotary joint 3 and the push rod 103, a rotational connection is achieved between the linear drive end of the linear drive assembly 1 and the other end of the roll material 4. This ensures that the linear drive end does not interfere with the rotation of the roll material 4 and can drive the roll material 4 to move axially, thereby achieving deviation correction.

[0062] For example, such as Figure 1 , Figure 3 and Figure 7 As shown, the linear drive assembly 1 includes a drive cylinder 101, a drive cylinder bracket 102, and a push rod 103. The drive cylinder bracket 102 is fixed to the mounting frame 2, and the drive cylinder 101 is mounted on the drive cylinder bracket 102. The drive cylinder 101 may include components capable of linear drive, such as an electric cylinder, pneumatic cylinder, or hydraulic cylinder. The linear drive end of the drive cylinder 101 is fixedly connected to the push rod 103. This linear drive assembly 1 has a simple and compact structure and is easy to install.

[0063] For example, such as Figure 7 As shown, the connection structure between the push rod 103 and the mounting frame 2 is as follows: The mounting frame 2 includes a frame body 201 and a first bearing seat 202. The first bearing seat 202 is fixed to the frame body 201, and a first linear bearing 15 is fitted inside the first bearing seat 202. The push rod 103 is linearly slidably disposed within the first linear bearing 15. The push rod 103 is linearly connected to the frame body 201 through the first bearing seat 202 and the first linear bearing 15, making the movement of the push rod 103 smoother and more stable, and improving the sealing performance. Of course, the push rod 103 can also directly pass through the frame body 201 and connect to the rotary joint 3.

[0064] like Figure 1 and Figure 2As shown, the winding and unwinding correction device provided in this embodiment also includes a sensor bracket 10, a sensor 11, and a controller. The sensor bracket 10 is fixedly mounted on the mounting frame 2. For example, the sensor bracket 10 includes a fixing block 1001 and a fixing rod group 1002. The fixing block 1001 is fixed to the mounting frame 2, specifically to the frame body 201. The fixing rod group 1002 may include one, two, or more fixing rods, which are fixedly connected end to end. One end of the fixing rod group 1002 is fixed to the fixing block 1001, and the other end of the fixing rod group 1002 is equipped with a sensor 11. The sensor 11 can be arranged at the position where the side of the roll material 5 passes through through the fixing rod group 1002, and the extension length of the fixing rod group 1002 can be adjusted according to the distance. Sensor 11 is used to monitor the offset of the side of the unwound roll 5 along the axial direction of the roll 4 relative to the reference position of sensor 11. The controller is connected to both sensor 11 and linear drive assembly 1. The wire of sensor 11 can pass through the wire guide 12 fixed on the frame 201 and then be connected to the controller. The controller is used to control the linear drive assembly 1 to drive the roll 4 to move axially according to the offset, so that the side of the roll 5 is adjusted to the reference position of sensor 11.

[0065] This winding and unwinding correction device is used for correction during unwinding. In operation, when the roll 4 rotates to unwind, the sensor 11 is positioned on the unwinding path of the roll 5 and near the roll 4. The sensor 11 is fixed to the mounting frame 2 via the sensor bracket 10. The reference position of the sensor 11 is fixed relative to the mounting frame 2. When the sensor 11 detects a shift in the side of the roll 5 relative to the reference position of the sensor 11, the controller controls the linear drive assembly 1 to drive the roll 4 to move axially according to the shift amount. For example, when the roll 5 shifts to the right relative to the reference position, the controller controls the linear drive assembly 1 to drive the roll 4 to move to the left; if it shifts to the left, it controls the roll 4 to move to the right. The distance moved is determined according to the shift amount, ultimately adjusting the side of the roll 5 to the original reference position, achieving automatic correction of the roll 5 during unwinding. The correction operation is simple and precise.

[0066] Of course, the winding and unwinding correction device may not be equipped with sensor 11. Instead, the linear drive component 1 can be manually controlled to perform the correction operation by observing the deviation of the roll material.

[0067] like Figure 3 , Figure 4 and Figure 7 As shown, another winding and unwinding correction device provided in this embodiment also includes a sensor bracket 10, a sensor 11, and a controller; and Figure 1 and Figure 2Unlike the previous solution, in this embodiment, the sensor bracket 10 is fixedly mounted on the linear drive end of the linear drive assembly 1 and moves with the linear drive end. For example, the sensor bracket 10 includes a fixing plate 1003 and a fixing rod assembly 1002. The fixing plate 1003 has a clamping hole 1004, and the fixing plate 1003 is clamped to the push rod 103 of the linear drive end through the clamping hole 1004. Figure 7 As shown; the fixing rod assembly 1002 may include one, two or more fixing rods, with multiple fixing rods fixedly connected end to end. One end of the fixing rod assembly 1002 is fixed to the fixing plate 1003, and the other end of the fixing rod assembly 1002 is equipped with a sensor 11. The sensor 11 can be positioned at the location where the side of the roll 5 passes through the fixing rod assembly 1002, and the extension length of the fixing rod assembly 1002 can be adjusted according to the distance. The reference position of the sensor 11 is aligned with the edge of the roll wound on the reel 4. The sensor 11 is used to monitor the offset of the side of the roll 5 to be wound along the axial direction of the reel 4 relative to the reference position. The controller is connected to both the sensor 11 and the linear drive assembly 1. The wire of the sensor 11 can pass through the wire guide 12 fixed on the frame 201 and then be connected to the controller. The controller is used to control the linear drive assembly 1 to drive the reel 4 and the sensor bracket 10 to move together along the axial direction according to the offset, so that the side of the roll 5 is adjusted to the reference position.

[0068] The winding and unwinding correction device is used for correction during winding. In specific operation, when the roll 4 rotates to wind up, the sensor 11 is set on the winding path of the roll 5 and located near the roll 4. The sensor 11 is fixed to the linear drive end of the linear drive assembly 1 by the sensor bracket 10. The sensor 11 can move linearly with the linear drive end. When the sensor 11 detects that the side of the roll 5 to be wound has shifted relative to the reference position of the sensor 11, that is, when it has shifted relative to the edge of the wound roll, the controller controls the linear drive assembly 1 to drive the roll 4 and the sensor bracket 10 to move together along the axial direction according to the offset. For example, when the side of the roll 5 shifts to the right relative to the reference position and the edge of the roll, the controller controls the linear drive assembly 1 to drive the spool 4 and the sensor bracket 10 to move to the right together, so that the reference position moves to the right; if it shifts to the left, the controller controls the spool 4 and the sensor bracket 10 to move to the left together, so that the reference position moves to the left. The distance of movement is determined according to the amount of shift, so that the reference position is aligned with the side of the roll 5 to be wound, so that the side of the roll 5 to be wound is aligned with the edge of the already wound roll, ensuring the neatness of the edge of the wound roll, realizing automatic correction of the roll 5 to be wound during the winding process. The correction operation is simple and accurate.

[0069] Of course, the winding and unwinding correction device may not be equipped with sensor 11. Instead, the linear drive component 1 can be manually controlled to perform the correction operation by observing the deviation of the roll material.

[0070] like Figure 3 , Figure 4 and Figure 7 As shown, the winding and unwinding correction device used for correction during the winding process also includes a guide structure 9 disposed on the mounting frame 2. The guide direction of the guide structure 9 is parallel to the axial direction of the roll 4, and the sensor bracket 10 is guided and connected to the guide structure 9. For example, the guide structure 9 can be a guide rod, one end of which is fixed to the frame 201. The fixing plate 1003 of the sensor bracket 10 is guided and connected to the guide rod through a guide hole, so that the sensor bracket 10 can move along the axial direction of the roll 4. Of course, the guide structure 9 can also be a guide rail, fixed to the frame, and the fixing plate 1003 has a guide groove that slides with the guide rail, which can also achieve guided movement along the axial direction of the roll 4. With this configuration, during the process of the linear drive assembly 1 driving the sensor bracket 10 to move along the axial direction of the roll 4, the guide structure 9 fixed on the mounting frame 2 and the sensor bracket 10 are guided and connected along the axial direction, which can prevent the sensor bracket 10 from rotating slightly with the push rod 103, thereby preventing the sensor 11 from shaking and improving the monitoring accuracy.

[0071] In some embodiments, sensor 11 includes a photoelectric sensor; or, sensor 11 includes two proximity sensors spaced apart along the axial direction of the reel 4. The photoelectric sensor has the advantage of high position monitoring accuracy. The midpoint between the two spaced proximity sensors is the reference position of sensor 11. The working principles of the photoelectric sensor and the proximity sensor are not described in detail.

[0072] In some embodiments, the spool 4 is an air-expanding shaft, which can be connected to an external air source to inflate and deflate the air-expanding shaft, and adjust its outer diameter to facilitate the assembly and disassembly of the material roll wound on it. Specifically, when the air-expanding shaft is not inflated, its outer diameter is small, and there is a gap between the air-expanding shaft and the material roll, making it easy to pull the air-expanding shaft out of the material roll. After inflation, the outer diameter of the air-expanding shaft increases, and the air-expanding shaft and the material roll are tightened and fixed together, preventing axial movement between them, allowing the air-expanding shaft and the material roll to move together. When it is necessary to remove the air-expanding shaft carrying the material roll from the linear drive assembly 1 and the rotary drive assembly 8, the retaining sleeve of the rotary joint 3 is first opened radially, releasing the radial restriction on the end of the spool 4. The connection between the spool 4 and the spline shaft 6 can also be disassembled. After both ends of the spool 4 are released from fixation, the spool 4 and the material roll can be disassembled. When replacing the reel 4, simply reconnect both ends of the reel 4 to the rotary joint 3 and the splined shaft 6 respectively. Disassembly and assembly do not require axial adjustment of the reel 4's position, nor does it require movement of the linear drive end of the linear drive assembly 1, making disassembly and assembly convenient.

[0073] Of course, the spool 4 can also be other axes, such as an optical axis, as long as it can support the winding of the roll material 5. The spool 4 can also be a two-section split structure, that is, composed of two coaxial shaft segments. In this case, the segmented spool 4 can only be driven synchronously and linearly by the linear drive component 1 to correct the deviation when the roll material 5 is wound on the spool 4.

[0074] like Figure 5 and Figure 8 As shown, this embodiment provides a third type of winding and unwinding correction device. Figure 1 Based on the winding and unwinding correction device in the middle. Figure 5 The third type of winding and unwinding correction device also includes a rotating sealing component 14 mounted on the mounting frame 2. For example... Figure 6 and Figure 8 As shown, this embodiment provides a fourth type of winding and unwinding correction device. Figure 3 Based on the winding and unwinding correction device in the middle. Figure 6 The fourth type of winding and unwinding correction device also includes a rotating sealing component 14 disposed on the mounting frame 2. The rotating drive end of the rotating drive assembly 8 of the third and fourth types of winding and unwinding correction devices is rotatably sealed to the mounting frame 2 by the rotating sealing component 14.

[0075] For example, such as Figure 8 As shown, the rotating sealing component 14 can be a magnetohydrodynamic sealing component, or other components with rotating sealing function. One end of the rotating sealing component 14 is fixed to the mounting bracket 2, specifically to the end of the second bearing seat 203. The other end of the rotating sealing component 14 is connected to the rotating drive end of the rotating drive assembly 8. Specifically, the rotating drive assembly 8 may include a motor 802 and a reducer 801. The drive end of the reducer 801 is connected to the rotating sealing component 14, and the drive end of the rotating sealing component 14 is fixedly connected to the spline sleeve 7. During operation, the motor 802 drives the reducer 801 to rotate, and the reducer 801 drives the spline sleeve 7 to rotate via the rotating sealing component 14.

[0076] With this configuration, for situations where the roll 4 needs to be wound or unwound in a sealed environment, such as when the mounting frame 2 is a vacuum chamber, a rotational sealing component 14 can be provided at the connection between the rotational drive end of the rotational drive assembly 8 and the mounting frame 2 to achieve rotational sealing between the rotational drive end and the mounting frame 2, thus ensuring the sealing of the vacuum chamber.

[0077] like Figure 5 and Figure 7 As shown, this embodiment provides a third type of winding and unwinding correction device. Figure 1 Based on the winding and unwinding correction device in the middle. Figure 5The third type of winding and unwinding correction device also includes a sealed bellows 13 mounted on a mounting frame. The sealed bellows 13 is sleeved on the linear drive end of the linear drive assembly 1, and the linear drive end moves linearly and seals with the mounting frame 2 through the sealed bellows 13. Figure 6 and Figure 7 As shown, this embodiment provides a fourth type of winding and unwinding correction device. Figure 3 Based on the winding and unwinding correction device in the middle. Figure 6 The fourth type of winding and unwinding correction device also includes a sealing bellows 13 set on the mounting frame 2. The sealing bellows 13 is sleeved on the linear drive end of the linear drive assembly 1, and the linear drive end moves linearly and seals with the mounting frame 2 through the sealing bellows 13.

[0078] For example, such as Figure 7 As shown, the sealing bellows 13 is located inside the drive cylinder bracket 102 and sleeved on the outside of the push rod 103. One end of the sealing bellows 13 is sealed to the push rod 103 and moves with the push rod 103. The other end of the sealing bellows 13 is sealed to the end face of the first bearing seat 202, specifically through sealing ring end face sealing. The sealing bellows 13 can extend and retract when the push rod 103 moves linearly, and always maintains a seal with the mounting bracket 2.

[0079] With this configuration, when the reel 4 needs to be wound or unwound in a sealed environment, such as when the mounting frame 2 is a vacuum chamber, a sealing bellows 13 can be installed at the connection between the linear drive end of the linear drive assembly 1 and the mounting frame 2 to achieve linear movement sealing between the linear drive end and the mounting frame 2, thus ensuring the sealing of the vacuum chamber.

[0080] For installations in vacuum chambers, existing web guiding mechanisms are difficult to install due to the narrow space inside the vacuum chamber, and it is difficult to vacuum seal multiple power mechanisms. However, this application, due to its compact structure, enables the application of the web guiding device in a vacuum chamber.

[0081] like Figure 9 As shown, based on the winding and unwinding correction device described in any of the above embodiments, this embodiment of the invention also provides a winding and unwinding system, including an unwinding device 25 and a winding device 21, wherein the unwinding device 25 is the winding and unwinding correction device for correction during unwinding described in the above embodiments, see details below. Figure 1 , Figure 2 and Figure 5 The shown is a winding and unwinding correction device; the winding device 21 is the winding and unwinding correction device described in the above embodiments for correction during winding, see details. Figure 3 , Figure 4 , Figures 6-8 The shown is a winding and unwinding correction device.

[0082] The unwinding system releases the roll 5 via the unwinding device 25, which also allows for deviation correction of the roll 5. After transmission and intermediate processing, the roll 5 is finally wound up by the winding device 21, which also allows for deviation correction, ensuring that the edges of the wound roll are smooth. Since the unwinding system uses the unwinding devices described in the above embodiments, it has the same beneficial effects as the unwinding devices, which will not be elaborated further here.

[0083] In some embodiments, the unwinding and take-up system further includes at least one web-correcting guide mechanism 23 disposed between the unwinding device 25 and the take-up device 21 and arranged along the transport direction of the roll 5. This arrangement allows for further web-correction operations during the transport of the roll 5, while simultaneously guiding the roll 5 along its intermediate path using the web-correcting guide mechanism 23. For unwinding and take-up systems with long transport paths for the roll 5, this ensures that the position of the roll 5 does not shift throughout the entire transport process, improving the accuracy of the intermediate processing of the roll 5.

[0084] Furthermore, in this embodiment, the correction guide mechanism 23 is the winding and unwinding correction device described in the above embodiments for correction during the unwinding process. It has the same beneficial effects as the winding and unwinding correction device, and will not be described again here. Of course, the correction guide mechanism 23 can also adopt other structural forms of correction mechanisms.

[0085] In some embodiments, the unwinding and take-up system further includes a printing worktable 24 and a laser transfer worktable 22 arranged sequentially between the unwinding device 25 and the take-up device 21 along the transport direction of the roll material 5. This enables the application of the unwinding and take-up correction device in the field of laser transfer. Since the rolls 4 of the unwinding device 25 and the take-up device 21 are unobstructed and do not occupy space, it is convenient to install the printing worktable 24, the laser transfer worktable 22 and the laser components above them, thus saving equipment space.

[0086] The internal maintenance space of this winding and unwinding system is larger. During system maintenance, the original correction device has a guide rail mounting platform, so even after the reel is removed, the guide rail mounting platform is not easy to remove, making maintenance extremely inconvenient. However, in this application, the center of the area is empty after the reel is removed, which facilitates the maintenance of other components in the system.

[0087] This unwinding and winding device can be applied in the field of laser transfer printing in photovoltaic production lines, encapsulation film or backplane cutting equipment, and the unwinding and winding of roll-to-roll coating equipment. Applicable roll materials 5 can include thin film materials such as PET (polyethylene terephthalate), PP (polypropylene), PI (propidium iodide), POE (polyolefin thermoplastic elastomer), EVA (ethylene-vinyl acetate copolymer), and paper, as well as metal film materials with a thickness of less than 0.2 mm. In addition, it can also be used in the coating and processing of various roll-shaped strips in industries such as semiconductors, lithium batteries, printing, and papermaking; for example, in the lithium battery industry, the unwinding and winding correction device under vacuum conditions can be used in positive and negative electrode copper foil coating equipment.

[0088] Based on the winding and unwinding systems described in the above embodiments, this invention also provides a winding and unwinding control method, wherein the winding and unwinding system includes a sensor 11 and a controller, and the winding and unwinding control method includes the following steps:

[0089] The unwinding device 25 controls the linear drive assembly 1 to drive the unwinding shaft 4 to move axially relative to the reference position of the sensor 11 by monitoring the offset of the side of the unwound roll 5 along the axial direction of the unwinding device 25's shaft 4 relative to the reference position of the sensor 11, so that the side of the roll 5 is adjusted to the reference position of the sensor 11. The linear movement direction of the unwinding device 25's shaft 4 is opposite to the offset direction of the unwound roll 5.

[0090] And / or, based on the offset of the side of the roll material to be wound along the axial direction of the roll 4 of the winding device 21 relative to the reference position of the sensor 11 monitored by the sensor 11 of the winding device 21, the linear drive assembly 1 of the winding device 21 is controlled to drive the roll 4 to move axially, so that the side of the roll material 5 to be wound is adjusted to the reference position of the sensor 11, wherein the linear movement direction of the roll 4 of the winding device 21 is the same as the offset direction of the roll material 5 to be wound, and the reference position of the sensor 11 of the winding device 21 is aligned with the edge of the roll material wound on the roll 4 of the winding device 21.

[0091] That is, if the deviation only occurs during the unwinding process, then the deviation correction control during the unwinding process is performed; if the deviation only occurs during the rewinding process, then the deviation correction control during the rewinding process is performed; if the deviation occurs during both the unwinding and rewinding processes, then the deviation correction control is performed during both the unwinding and rewinding processes.

[0092] For example, when the roll 5 shifts to the right relative to the reference position during unwinding, the linear drive component 1 of the unwinding device 25 drives the roll 4 to move to the left; if it shifts to the left, the roll 4 is controlled to move to the right, and the distance of movement is determined according to the amount of shift, so that the side of the roll 5 is finally adjusted to the original reference position, thereby realizing the automatic correction of the roll 5 during the unwinding process.

[0093] During the winding process, when the side of the roll 5 shifts to the right relative to the reference position and the edge of the roll, the linear drive component 1 of the winding device 21 drives the spool 4 and the sensor bracket 10 to move to the right together, thus moving the reference position to the right. If it shifts to the left, the spool and the sensor bracket are moved to the left together, thus moving the reference position to the left. The distance of movement is determined according to the amount of shift, so that the reference position is aligned with the side of the roll 5 to be wound, thus aligning the side of the roll 5 to be wound with the edge of the already wound roll, ensuring the neatness of the edge of the wound roll, and realizing automatic correction of the roll 5 during the winding process.

[0094] When the above technical solution is adopted, since the unwinding and winding control method adopts the unwinding and winding system in the above embodiments, it can realize the automatic correction of the unwinding device 25 and the winding device 21, and has the same beneficial effect as the unwinding and winding correction device and the unwinding and winding system, which will not be described in detail here.

[0095] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0096] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A winding and unwinding correction device, characterized in that, include: Mounting rack; A reel, rotatably and axially movable, is connected to the mounting bracket; A rotation drive assembly is disposed on the mounting frame, wherein the rotation drive end of the rotation drive assembly is axially movably connected to one end of the reel, and is used to drive the reel to rotate; A linear drive assembly is disposed on the mounting bracket, wherein the linear drive end of the linear drive assembly is rotatably connected to the other end of the reel, and is used to drive the reel to move axially. The rotating drive assembly has a spline sleeve fixed to its rotating drive end, which is rotatably connected to the mounting bracket. One end of the reel is fixed with a spline shaft, which is axially movably fitted inside the spline sleeve. The linear drive assembly has a push rod fixed at its linear drive end and a rotary joint fixed at the other end of the reel. The push rod is rotatably connected to the rotary joint, and the push rod and the rotary joint are axially limited. One end of the rotary joint is a sleeve hole, and the other end is a locking sleeve that can be opened radially. The locking sleeve is sleeved and fixed to the end of the reel. The end of the sleeve hole has an openable end cap. The end of the push rod is rotatably sleeved in the sleeve hole. After the end of the push rod passes through the end cap, it is axially limited with the end cap.

2. The winding and unwinding correction device according to claim 1, characterized in that, The winding and unwinding correction device also includes: The sensor bracket is fixedly mounted on the mounting frame; A sensor is mounted on the sensor bracket, and the sensor is used to monitor the offset of the side edge of the unwound roll relative to the reference position of the sensor along the axial direction of the roll shaft. A controller, connected to both the sensor and the linear drive assembly, is used to control the linear drive assembly to drive the reel to move axially according to the offset, so that the side of the reel is adjusted to the reference position of the sensor.

3. The winding and unwinding correction device according to claim 1, characterized in that, The winding and unwinding correction device also includes: The sensor bracket is fixedly mounted on the linear drive end of the linear drive assembly and moves with the linear drive end; A sensor is mounted on the sensor bracket, and the reference position of the sensor is aligned with the edge of the roll wound on the reel. The sensor is used to monitor the offset of the side edge of the roll to be wound relative to the reference position along the axial direction of the reel. A controller, connected to both the sensor and the linear drive assembly, is used to control the linear drive assembly to drive the roll and the sensor bracket to move axially together according to the offset, so that the side of the roll is adjusted to the reference position.

4. The winding and unwinding correction device according to claim 3, characterized in that, The winding and unwinding correction device also includes a guide structure disposed on the mounting frame. The guide direction of the guide structure is parallel to the axial direction of the roll. The sensor bracket is guided and connected to the guide structure.

5. The winding and unwinding correction device according to any one of claims 2-4, characterized in that, The sensor includes a photoelectric sensor; Alternatively, the sensor may include two proximity sensors spaced apart along the axial direction of the reel.

6. The winding and unwinding correction device according to any one of claims 1-4, characterized in that, The reel is an air-expanding reel.

7. The winding and unwinding correction device according to any one of claims 1-4, characterized in that, The winding and unwinding correction device further includes a rotating sealing component disposed on the mounting frame, and the rotating drive end of the rotating drive assembly is rotatably sealed to the mounting frame through the rotating sealing component.

8. The winding and unwinding correction device according to any one of claims 1-4, characterized in that, The winding and unwinding correction device also includes a sealing bellows disposed on the mounting frame. The sealing bellows is sleeved on the linear drive end of the linear drive assembly, and the linear drive end moves linearly and seals with the mounting frame through the sealing bellows.

9. The winding and unwinding correction device according to any one of claims 1-4, characterized in that, The linear drive assembly includes an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

10. A winding and unwinding system, comprising an unwinding device and a winding device, characterized in that, The unwinding device is a winding and unwinding correction device as described in any one of claims 1-2 and 5-9, and the winding device is a winding and unwinding correction device as described in any one of claims 1 and 3-9.

11. The winding and unwinding system according to claim 10, characterized in that, The unwinding and take-up system further includes at least one correction and guiding mechanism disposed between the unwinding device and the winding device and arranged along the roll transport direction.

12. The winding and unwinding system according to claim 11, characterized in that, The correction and guidance mechanism is the winding and unwinding correction device as described in any one of claims 1-2 and 5-9.

13. The winding and unwinding system according to claim 11, characterized in that, The unwinding and rewinding system also includes a laser transfer worktable and a printing worktable arranged sequentially between the unwinding device and the winding device along the roll material transport direction.

14. A method for controlling winding and unwinding, characterized in that, Based on the winding and unwinding system according to any one of claims 10-13, the winding and unwinding system includes a sensor and a controller, and the winding and unwinding control method includes: The unwinding device monitors the offset of the side of the unwound roll relative to the reference position of the sensor along the axial direction of the unwinding device's shaft. The linear drive assembly of the unwinding device is controlled to drive the shaft to move axially so that the side of the roll is adjusted to the reference position of the sensor. The linear movement direction of the unwinding device's shaft is opposite to the offset direction of the unwound roll. And / or, based on the offset of the side edge of the roll to be wound relative to the reference position of the sensor along the axial direction of the roll of the winding device, the linear drive assembly of the winding device is controlled to drive the roll to move axially, so that the side edge of the roll to be wound is adjusted to the reference position of the sensor, wherein the linear movement direction of the roll of the winding device is controlled to be the same as the offset direction of the roll to be wound, and the reference position of the sensor of the winding device is aligned with the edge of the roll wound on the roll of the winding device.

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