Deviation correcting device for strip winding and punching and winding apparatus

Abstract

The application provides a deviation rectifying device for strip winding and a punching and winding equipment. The strip is a strip of an axial flux motor core. The deviation rectifying device comprises a support seat, a sensor, a deviation rectifying module and a control module. The sensor and the deviation rectifying module are fixedly connected and arranged along a first direction. The strip is connected with a roller for winding the strip through the sensor. The roller is axially parallel to a third direction. The third direction, the first direction and a second direction are perpendicular to each other. The second direction is parallel to the thickness direction of the strip. The deviation rectifying module is arranged along the second direction and is slidingly connected with the support seat along the third direction. The deviation rectifying module is rotationally connected with the roller. Along the second direction, the connecting line of the projection of the center point of the roller and the center point of the sensor is parallel to the first direction. The control module is electrically connected with the sensor and the deviation rectifying module. The control module is used for receiving the position of the strip along the third direction detected by the sensor and controlling the deviation rectifying module to adjust the position of the strip along the third direction, so as to reduce the deviation of the strip.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the axial flux motor technical field, and particularly relates to a deviation rectifying device for strip winding and a punching and winding equipment. BACKGROUND

[0002] According to the magnetic field direction, the motor is generally divided into axial flux motors and radial flux motors. In the prior art, in the process of producing and processing the strip of the axial flux motor core by the punching and winding equipment, the strip needs to be accurately and unbiasedly sent into the winding device. However, the strip cannot keep straight running and makes the width center line deviate from the reference center line due to various interference forces in the running process, such as the vibration of mechanical parts, the change of the speed and tension of parts and the like, which leads to the serpentine deviation of the strip and causes the strip deviation phenomenon. Further, the performance of the axial flux motor is greatly reduced. SUMMARY

[0003] The embodiment of the present application provides a deviation rectifying device for strip winding and a punching and winding equipment. The deviation rectifying device can adjust the position of the strip in real time, reduce the strip deviation phenomenon, improve the size accuracy and the flatness of the end surface of the wound core, and improve the performance of the axial flux motor.

[0004] In a first aspect, the embodiment of the present application provides a deviation rectifying device for strip winding. The strip is the strip of the axial flux motor core. The deviation rectifying device comprises a deviation rectifying support seat, a first position sensor, a deviation rectifying module and a control module. The first position sensor and the deviation rectifying module are arranged along a first direction, and the first position sensor is fixedly connected with the deviation rectifying module. The strip is connected with a winding drum through the first position sensor, the winding drum is a drum for winding the strip, the axial direction of the winding drum is parallel to a third direction, the third direction, the first direction and a second direction are perpendicular to each other, and the second direction is parallel to the thickness direction of the strip. The deviation rectifying module and the deviation rectifying support seat are arranged along the second direction, the deviation rectifying module and the deviation rectifying support seat are slidingly connected along the third direction, and the deviation rectifying module is rotationally connected with the winding drum. Along the second direction, the connecting line of the projection of the center point of the winding drum and the projection of the center point of the first position sensor is parallel to the first direction. The control module is electrically connected with the first position sensor and the deviation rectifying module, respectively, and the control module is used for receiving the position of the strip along the third direction detected by the first position sensor, and controlling the deviation rectifying module to slide along the third direction according to the position of the strip along the third direction, so as to adjust the position of the strip.

[0005] The projection of the center point of the winding along the second direction and the projection of the center point of the first position sensor can be considered as a reference center line of the strip along the second direction in an ideal case. In this way, the position of the strip along the third direction detected by the first position sensor is the position of the strip deviating from the reference center line. In this way, during the transmission of the strip, the first position sensor in the deviation correcting device can detect the position of the strip deviating from the reference center line in real time, and transmit it to the control module in real time, so that the control module controls the deviation correcting module to slide along the third direction. Since the deviation correcting module and the winding roller are rotationally connected, and the third direction is parallel to the axial direction of the winding roller, during the sliding of the deviation correcting module along the third direction, the winding roller can be driven to move along the axial direction of the winding roller. Further, the winding roller drives the strip to move to the position of the reference center line of the strip, realizes closed-loop control of the position of the strip, reduces the deviation of the strip, improves the size accuracy and flatness of the end surface of the wound core, and improves the performance of the axial flux motor.

[0006] In an implementation manner, the deviation correcting module comprises a motor, a screw rod, a sliding block, and a sliding rail. The motor shaft of the motor is fixedly connected with the screw rod, the motor is electrically connected with the control module, the motor is fixedly connected on the deviation correcting support seat, and the motor shaft and the screw rod are parallel to the third direction. The sliding block is sleeved on the screw rod and threadedly connected with the screw rod, the sliding block is slidingly connected with the sliding rail along the third direction, and the sliding block is rotationally connected with the winding roller. The sliding block and the sliding rail are arranged on both sides of the motor shaft along the second direction, and the sliding rail is fixedly arranged on the deviation correcting support seat.

[0007] During the transmission of the strip, the screw rod is driven to rotate by the motor in the deviation correcting module, and the cooperation between the screw rod and the thread on the sliding block enables the sliding block to slide along the third direction and drive the winding roller to move along the axial direction of the winding roller. Further, the winding roller drives the strip to move to the position of the reference center line of the strip, realizes closed-loop control of the position of the strip, reduces the deviation of the strip, improves the size accuracy and flatness of the end surface of the wound core, and improves the performance of the axial flux motor.

[0008] In an implementation manner, the size of the sliding block along the third direction is less than or equal to the size of the sliding rail. Accordingly, the volume of the deviation correcting device is reduced.

[0009] In an implementation manner, the deviation correcting device further comprises a second position sensor, and the second position sensor is fixedly connected with the deviation correcting module. The control module is further configured to receive the displacement of the deviation correcting module moving along the third direction detected by the second position sensor, and determine whether to continue to control the deviation correcting module to adjust the position of the strip along the third direction according to the displacement of the deviation correcting module moving along the third direction.

[0010] The displacement of the deviation correcting module along the third direction is detected by the secondary position sensor, so that whether the position of the strip material is adjusted to the position by the deviation correcting module is determined, and whether the position of the strip material is continuously adjusted by the deviation correcting module along the third direction is determined, thereby improving the accuracy of the deviation correcting module in correcting the position of the strip material.

[0011] In an implementation manner, the secondary position sensor comprises a grating ruler and a reading head. The grating ruler is fixedly connected to the slide rail and the length direction of the grating ruler is parallel to the third direction. The reading head is fixedly connected to the sliding block, and the reading head is electrically connected to the control module. In the first direction, the projection of the reading head and the projection of the grating ruler overlap.

[0012] The reading head is fixedly arranged on the sliding block, and in the process of sliding of the sliding block along the third direction, the reading head can be driven to move along the third direction. In addition, the grating ruler is fixedly arranged on the slide rail, and in the process of movement of the reading head along the third direction, the displacement of the deviation correcting module along the third direction is detected by cooperation between the reading head and the grating ruler, so that whether the position of the strip material is adjusted to the position by the deviation correcting module is determined, and whether the position of the strip material is continuously adjusted by the deviation correcting module along the third direction is determined, thereby improving the accuracy of the deviation correcting module in correcting the position of the strip material.

[0013] In an implementation manner, in the third direction, the size of the reading head is less than or equal to the size of the sliding block, and the size of the grating ruler is less than or equal to the size of the slide rail. Accordingly, the volume of the deviation correcting device is reduced.

[0014] In an implementation manner, in the third direction, the size of the grating ruler is less than or equal to the size of the slide rail. Accordingly, the volume of the deviation correcting device is reduced.

[0015] In an implementation manner, in the third direction, the size of the reading head is less than the size of the grating ruler. Accordingly, the cost of the deviation correcting device is reduced.

[0016] In an implementation manner, the deviation correcting device further comprises two groups of compression rollers, the two groups of compression rollers are arranged along the first direction, each group of compression rollers comprises two compression rollers, the two compression rollers of each group of compression rollers are arranged along the second direction, and the axial directions of the two compression rollers of each group of compression rollers are respectively parallel to the third direction. The two compression rollers of the two groups of compression rollers are respectively rotationally connected to the deviation correcting module, the strip material sequentially passes through the gap between the two compression rollers of one group of compression rollers, the gap between the two compression rollers of the other group of compression rollers, and is connected to the winding roller, and in the second direction, the projection of the primary position sensor respectively overlaps the projection of each group of compression rollers.

[0017] The strip material is transmitted below the primary position sensor, and the two groups of compression rollers can clamp the strip material below the primary position sensor to prevent the strip material below the primary position sensor from shaking, so that the strip material can run smoothly. In turn, the accuracy of the position detection of the primary position sensor on the deviation of the strip material from the reference center line is improved.

[0018] In one implementation, the correction device further includes two sets of pressure regulating modules. Each pressure regulating module is used to regulate the pressure of each set of pressure rollers on the conveyor belt. Each pressure regulating module includes a lower support plate, an upper support plate, and a spring. The upper support plate, spring, and lower support plate are arranged sequentially along the second direction. Along the second direction, the spring is elastically connected to both the upper and lower support plates. The upper and lower support plates are fixedly connected to the correction module. The lower support plate of each pressure regulating module is rotatably connected to one pressure roller of each set of pressure rollers.

[0019] The conveyor belt is fed into the gap between the two sets of pressure rollers. The belt alignment device adjusts the pressure of one pressure roller in each set of rollers using springs, ensuring that the two sets of pressure rollers clamp the conveyor belt below the primary position sensor, preventing it from shaking and allowing for smooth operation. This, in turn, improves the accuracy of the primary position sensor in detecting the conveyor belt's deviation from the reference centerline.

[0020] In one implementation, the correction amount y at the position of the material conveyor satisfies the following formula:

[0021] y = L1 × Δy / (L1 - L0)

[0022] Where L1 is the distance between the reference point and the center point of the winding drum along the first direction, and the center point of the primary position sensor along the first direction is located between the reference point and the center point of the winding drum. L0 is the distance between the center point of the primary position sensor and the center point of the winding drum along the first direction. △y is the distance between the position of the strip detected by the primary position sensor along the third direction and the center point of the primary position sensor.

[0023] Along the first direction, the center point of the primary position sensor is located between the reference point and the center point of the winding drum. That is, along the first direction, the reference point lies on the extension line of the center points of the primary position sensor and the winding drum. The line connecting the reference point, the center point of the primary position sensor, and the center point of the winding drum can be considered as the reference centerline of the strip along the second direction under ideal conditions. Thus, the triangle formed by the reference point, the center point of the primary position sensor, and the position of the strip deviating from the reference centerline, and the triangle formed by the reference point, the center point of the winding drum, and the position of the winding drum deviating from the reference centerline, are similar triangles. Since the positions of the reference point, the center point of the primary position sensor, the position of the strip deviating from the reference centerline, and the center point of the winding drum are known, according to the principle of triangle similarity, the amount of deviation of the strip from the reference centerline at the winding drum, i.e., the amount of deviation y of the strip position, can be obtained. Furthermore, the primary position sensor transmits this information to the control module in real time, so that the control module can control the correction module to perform closed-loop control of the strip position, reducing strip deviation and improving the dimensional accuracy and end-face flatness of the wound core, thereby enhancing the performance of the axial flux motor.

[0024] In a second aspect, a punching and coiling device is provided, comprising a winding device and a deviation correction device as described in the first aspect and any of its possible implementations, the deviation correction device being used to correct the position of the strip, the winding device comprising the winding roller.

[0025] In the punching and coiling equipment provided in this application embodiment, during the sliding process of the correction module along a third direction, it can drive the winding drum to move along the axial direction of the winding drum. Furthermore, the winding drum drives the strip material to move towards the position of the strip material reference center line, realizing closed-loop control of the strip material position, reducing strip material deviation, and improving the dimensional accuracy and end-face flatness of the iron core after the punching and coiling equipment is wound up, thereby improving the performance of the axial flux motor. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the punching and rolling equipment provided in the embodiments of this application.

[0027] Figure 2 This is a schematic diagram of the tension control device provided in the embodiments of this application.

[0028] Figure 3 yes Figure 2 The diagram shows the structure of the clamping module.

[0029] Figure 4 yes Figure 2 The diagram shows the structure of the compensation tensioning module.

[0030] Figure 5is a schematic flow chart of adjusting the tension of the strip by the tension control device provided in the embodiments of the present application.

[0031] Figure 6 and Figure 7 are structural schematic diagrams of the deviation rectifying device provided in the embodiments of the present application.

[0032] Figure 8 is a partial structural schematic diagram of the deviation rectifying device provided in the embodiments of the present application.

[0033] Figure 9 is a partial structural schematic diagram of the deviation rectifying device provided in the embodiments of the present application.

[0034] Figure 10 is a schematic flow chart of adjusting the position of the strip by the deviation rectifying device provided in the embodiments of the present application.

[0035] Figure 11 is a schematic diagram of winding the strip by the winding roller provided in the embodiments of the present application. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described below with reference to the drawings.

[0037] In the description of the embodiments of the present application, unless otherwise specified, “ / ” represents the meaning of or, for example, A / B can represent A or B; “and / or” in the present application only represents a description of the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone.

[0038] In the embodiments of the present application, the prefix words such as “first”, “second”, “third” are only used to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of ordinal words such as ordinal words in the embodiments of the present application does not limit the described objects, and the description of the described objects should be seen in the context of the claims or embodiments, and should not be limited by the use of such prefix words. In addition, in the description of the embodiments, unless otherwise specified, the meaning of “multiple” is two or more.

[0039] Reference being made to "some embodiments" or the like in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of the phrase "in some embodiments" in various places in the specification are not necessarily all referring to the same embodiment, however, and can refer to one or more but less than all embodiments. The terms "including," "containing," "comprising," "having," and variations thereof are meant to encompass the item listed thereafter and equivalents thereof as well as additional items.

[0040] "Vertical" in this application is not strictly vertical, but within the error tolerance. "Parallel" is not strictly parallel, but within the error tolerance.

[0041] In the embodiments of the present application, the same reference signs represent the same component or the same part. In the embodiments of the present application, for a plurality of identical parts, only one of the parts may be labeled with a reference sign in the drawings. The reference signs are also applicable to other identical parts or components. In addition, the sizes and dimensions of the parts shown in the drawings are only exemplary.

[0042] The embodiments of the present application provide a tension control device for strip winding. Wherein, the strip is the strip of the core of the axial flux motor. The tension control device comprises a bottom plate, a pressing module, a tension detection module, a pressure regulating proportional valve and a controller. Wherein, the pressing module, the tension detection module, the tension detection module, the pressure regulating proportional valve are respectively fixedly connected with the bottom plate. The pressing module, the tension detection module are arranged in sequence along the direction of strip transmission, and the strip is in contact with the pressing module and the tension detection module during the process of strip transmission. The pressure regulating proportional valve and the pressing module are pneumatically connected. The controller is electrically connected with the pressure regulating proportional valve and the tension detection module, and the controller is used for receiving the tension of the strip detected by the tension detection module, and controlling the pressure regulating proportional valve to adjust the pressure of the pressing module on the strip according to the tension of the strip, so as to adjust the tension of the strip.

[0043] Since the pressure of the pressing module on the strip can be converted into the tension of the strip itself during winding, in the tension control device provided by the present application, the controller adjusts the pressure of the pressing module on the strip in real time through the pressure regulating proportional valve according to the tension of the strip detected by the tension detection module in real time during the process of strip transmission, and then realizes the automatic adjustment and control of the tension of the strip itself, so that the size precision and the flatness of the end surface of the wound core are improved, and the performance of the axial flux motor is improved.

[0044] The embodiment of the present application provides a deviation rectifying device for strip winding. The strip is the strip of the core of an axial flux motor. The deviation rectifying device comprises a rack, a primary position sensor, a deviation rectifying module and a control module. The primary position sensor and the deviation rectifying module are arranged along a first direction, and the primary position sensor is fixedly connected with the deviation rectifying module. The strip is connected with a winding drum through the primary position sensor, the winding drum is a drum for winding the strip, the axis of the winding drum is parallel to a third direction, the third direction, the first direction and a second direction are perpendicular to each other, and the second direction is parallel to the thickness direction of the strip. The deviation rectifying module and the rack are arranged along the second direction, the deviation rectifying module and the rack are slidingly connected along the third direction, and the deviation rectifying module is rotationally connected with the winding drum. Along the second direction, the connecting line of the projection of the center point of the winding drum and the projection of the center point of the primary position sensor is parallel to the first direction. The control module is electrically connected with the primary position sensor and the deviation rectifying module respectively, and the control module is used for receiving the position of the strip along the third direction detected by the primary position sensor, and controlling the deviation rectifying module to slide along the third direction according to the position of the strip along the third direction, so as to adjust the position of the strip.

[0045] In the process of strip transmission, the primary position sensor in the deviation rectifying device can detect the position of the strip in real time and transmit the position to the control module in real time, so that the control module controls the deviation rectifying module to adjust the position of the strip, realizes closed-loop control of the position of the strip, reduces the deviation of the strip, improves the size accuracy and the flatness of the end surface of the wound core, and improves the performance of the axial flux motor.

[0046] Along the second direction, the connecting line of the projection of the center point of the winding drum and the projection of the center point of the primary position sensor can be regarded as the reference center line of the strip along the second direction in an ideal case. In this way, the position of the strip along the third direction detected by the primary position sensor is the position of the strip deviating from the reference center line. In this way, in the process of strip transmission, the primary position sensor in the deviation rectifying device can detect the position of the strip deviating from the reference center line in real time and transmit the position to the control module in real time, so that the control module controls the deviation rectifying module to slide along the third direction. Since the deviation rectifying module and the winding drum are rotationally connected, and the third direction is parallel to the axis of the winding drum, in the process of the deviation rectifying module sliding along the third direction, the winding drum can be driven to move along the axis of the winding drum. Further, the winding drum drives the strip to move to the position of the reference center line of the strip, realizes closed-loop control of the position of the strip, reduces the deviation of the strip, improves the size accuracy and the flatness of the end surface of the wound core, and improves the performance of the axial flux motor.

[0047] This application provides a punching and coiling device. The punching and coiling device includes at least one of the tension control device and the web guiding device described above, and a winding device. The tension control device is used to control the tension of the strip material. The web guiding device is used to correct the position of the strip material. The winding device includes a winding roller.

[0048] During the coiling process, the tension of the coiled material is adjusted by a tension control device, and the deviation of the coiled material from the reference center line is adjusted by a correction device. This improves the dimensional accuracy and flatness of the end face of the iron core after coiling, thereby enhancing the performance of the axial flux motor.

[0049] Figure 1 This is a schematic diagram of the structure of the punching and rolling equipment 1 provided in an embodiment of this application. Figure 1 As shown, the punching and coiling equipment 1 provided in this embodiment includes a strip feeding device 10, a grooving device 30, and a winding device 50. The strip feeding device 10, the grooving device 30, and the winding device 50 are arranged sequentially along the direction of strip transport. The strip feeding device 10 is used to transport the strip. The grooving device 30 is used to groove the strip. The winding device 50 includes a winding roller for winding the strip to obtain the core of an axial flux motor.

[0050] like Figure 1 As shown, the punching and coiling equipment also includes at least one of a tension control device 20 and a web guiding device 40. The tension control device 20 is arranged between the strip feeding device 10 and the punching device 30. The web guiding device 40 is arranged between the punching device 30 and the winding device 50. The tension control device 20 is used to control the tension of the strip material during transmission. The web guiding device 40 is used to correct the position of the strip material during transmission.

[0051] It should be noted that the strip material involved in the embodiments of this application is the strip material of the iron core of an axial flux motor. In addition, the material of the strip material L is usually silicon steel.

[0052] Below, in conjunction with Figures 2 to 4 The tension control device 20 provided in the embodiments of this application will be described in detail.

[0053] Figure 2 This is a schematic diagram of the tension control device 20 provided in the embodiments of this application.

[0054] like Figure 2As shown, the tension control device 20 comprises a rack 210, a pressing module 220, a tension detection module 230, a pressure regulating proportional valve 240 and a controller 250, wherein the pressing module 220 and the tension detection module 230 are arranged in sequence along the direction of the strip material L transmission, and the strip material L is in contact with the pressing module 220 and the tension detection module 230 during the transmission of the strip material L. The pressure regulating proportional valve 240 is pneumatically connected with the pressing module 220. The controller 250 is electrically connected with the pressure regulating proportional valve 240 and the tension detection module 230 respectively, and the controller 250 is configured to receive the tension of the strip material L detected by the tension detection module 230 and control the pressure regulating proportional valve 240 to adjust the pressure of the strip material L applied by the pressing module 220.

[0055] Since the pressure of the strip material L applied by the pressing module 220 can be converted into the tension of the strip material L itself during the winding process, in the tension control device 20 provided in the present application, the controller 250 can adjust the pressure of the strip material L applied by the pressing module 220 in real time through the pressure regulating proportional valve 240 according to the tension of the strip material L detected by the tension detection module 230 in real time during the transmission of the strip material L, so as to realize the automatic adjustment and control of the tension of the strip material L itself, and the size accuracy and the flatness of the end surface of the wound core are improved, and the performance of the axial flux motor is improved.

[0056] The rack 210 comprises a bottom plate 211. The bottom plate 211 is provided with various components or modules included in the tension control device 20. In the following, the position, specific structure and connection relationship of the components or modules provided on the bottom plate 211 are described in detail. Figures 2 to 4 The position, specific structure and connection relationship of the components or modules provided on the bottom plate 211 are described in detail.

[0057] The pressing module 220 is configured to press the strip material L in transmission. In the following, the structure of the pressing module 220 is described in detail. Figure 2 The structure of the pressing module 220 is described in detail. Figure 3 The structure of the pressing module 220 is described in detail. Figure 3 The structure of the pressing module 220 is described in detail. Figure 2 The structure of the pressing module 220 is described in detail.

[0058] As shown in Figure 2 The structure of the pressing module 220 is described in detail. Figure 3 The structure of the pressing module 220 is described in detail.

[0059] In an embodiment, as shown in Figure 2 The structure of the pressing module 220 is described in detail. Figure 3As shown in the figure, the pressing cylinder 221 and the lower pressing plate 223 are fixedly connected to the bottom plate 211 respectively, the upper pressing plate 222 is fixedly connected to the piston rod of the pressing cylinder 221, and the axial direction of the piston rod of the pressing cylinder 221 is parallel to the thickness direction of the strip L. In addition, the pressing cylinder 221 is a lower pressing cylinder. In an embodiment, the pressing cylinder 221 and the upper pressing plate 222 are fixedly connected to the bottom plate 211 respectively, the lower pressing plate 223 is fixedly connected to the piston rod of the pressing cylinder 221, and the axial direction of the piston rod of the pressing cylinder 221 is parallel to the thickness direction of the strip L. In addition, the pressing cylinder 221 is an upper pressing cylinder. Hereinafter, the upper pressing plate 222 is fixedly connected to the piston rod of the pressing cylinder 221 as an example for description.

[0060] As shown in the figure, Figure 2 The strip L is in contact with the upper pressing plate 222 and the lower pressing plate 223 respectively, and passes through the gap between the upper pressing plate 222 and the lower pressing plate 223, and is connected to the winding roller by bypassing the tension detection module 230. The pressure regulating proportional valve 240 is pneumatically connected (such as a gas pipe connection) to the pressing cylinder 221, and the controller 250 is specifically configured to control the pressure regulating proportional valve 240 to adjust the air pressure in the pressing cylinder 221 according to the tension of the strip L, so that the piston rod of the pressing cylinder 221 adjusts the pressure of the strip L applied by the upper pressing plate 222 and the lower pressing plate 223.

[0061] It should be noted that, in the case that the pressure of the strip L applied by the upper pressing plate 222 and the lower pressing plate 223 changes, whether the upper pressing plate 222 deforms is affected by the compressive strength of the material used by the upper pressing plate 222 itself. For example, in the case that the pressure of the strip L applied by the upper pressing plate 222 is the same, the deformation amount of the upper pressing plate 222 made of steel material is smaller than that of the upper pressing plate 222 made of wood material.

[0062] As shown in the figure, Figure 2 In some embodiments, as shown in the figure, the pressing module 220 further comprises a lower pressing support seat 224 and an upper pressing support seat 225. The lower pressing support seat 224 is located between the bottom plate 211 and the lower pressing plate 223, and the lower pressing support seat 224 is fixedly connected to the bottom plate 211, and the pressing plate 224 is fixedly connected to the lower pressing support seat 224. The upper pressing support seat 225 comprises a front support plate 2251, a main plate 2252 and a rear support plate 2253 fixedly connected in sequence, the front support plate 2251 and the rear support plate 2253 are arranged in opposite directions perpendicular to the thickness direction of the strip L and the transmission direction of the strip L, and the front support plate 2251 and the rear support plate 2253 are fixedly connected to the bottom plate 211 respectively. The main plate 2252 is arranged on the side of the upper pressing plate 222 away from the lower pressing plate 223, the main plate 2252 has a through hole penetrating the main plate 2252 in the thickness direction of the strip L, and the piston rod of the pressing cylinder 221 is fixedly connected to the upper pressing plate 222 through the through hole.

[0063] In some embodiments, the tension detection module 230 is configured to detect the tension of the strip L in the transmission and transmit the detected tension of the strip L to the controller 250 described below. The following continues to be described in combination with Figure 2 The structure of the tension detection module 230 is described in detail.

[0064] The tension detection module 230 includes a tension detection rod, two bearings, two bearing seats, and two tension sensors. The axial direction of the tension detection rod is perpendicular to the direction of the strip transmission and the thickness direction of the strip, and the top of the tension detection rod is in contact with the strip. Each of the two bearings is fixedly connected to the two ends of the shaft of the tension detection rod, and each of the two bearings is rotatably connected to a bearing seat. Each of the two tension sensors is fixedly connected to a bearing seat. In some embodiments, the two bearings in the tension detection module 230 are both outer spherical surface ball bearings. In this way, during the transmission of the strip L, the two bearings in the tension detection module 230 can automatically adjust the shaft misalignment caused by the different centers of the tension detection rod, achieving the purpose of centering.

[0065] Specifically, as shown in Figure 4 The tension detection module 230 includes a tension detection rod 231, a left bearing 2321, a right bearing 2322, a left bearing seat 2331, a right bearing seat 2332, a left tension sensor 2341, and a right tension sensor 2342. The axial direction of the tension detection rod 231 is perpendicular to the direction of the strip L transmission and the thickness direction of the strip L, and the top of the tension detection rod 231 is in contact with the strip L. The inner ring of the left bearing 2321 and the inner ring of the right bearing 2322 are fixedly connected to the two ends of the shaft of the tension detection rod 231, the outer ring of the left bearing 2321 is fixedly connected to the left bearing seat 2331, and the outer ring of the right bearing 2322 is fixedly connected to the right bearing seat 2332. The left tension sensor 2341 is fixedly connected to the bottom plate 211 and the left bearing seat 2331. The right tension sensor 2342 is fixedly connected to the bottom plate 211 and the right bearing seat 2332.

[0066] During the winding of the strip L, due to the tension of the strip L, the strip L will generate pressure on the tension detection rod 231, and then the tension detection rod 231 will generate pressure on the two tension sensors through the two bearing seats. In this way, the tension of the strip L can be obtained by detecting the pressure received by the two tension sensors and the following formula (1):

[0067]

[0068] Wherein, F is the pressure detected by the two tension sensors. T is the tension of the strip L, a is the central angle of the contact arc of the strip L and the tension detection stick 231. D is the angle between F and the thickness direction of the strip L, W is the weight of the tension detection stick 231, and A is the angle between the gravity of the tension detection stick 231 and the thickness direction of the strip L.

[0069] In the embodiment of the present application, the direction of F is parallel to the thickness direction of the strip L, so that D and A are both 0°.

[0070] It should be noted that the thickness direction of the strip L refers to the thickness direction of the strip L when the strip L is transmitted along a straight line. For example, the thickness direction of the strip L between the upper pressing plate 222 and the lower pressing plate 223.

[0071] In one embodiment, if the voltage signal corresponding to the pressure detected by the tension sensor is small, a tension amplifier is further arranged between the tension sensor and the controller 250. That is, the left tension sensor 2341 and the right tension sensor 2342 are electrically connected to the controller 250 through the tension amplifier. In this way, the controller 250 is configured to receive the tension amplified by the tension amplifier based on the tension of the strip detected by the two tension sensors, and control the pressure adjusting proportional valve 240 to adjust the pressure of the strip by the pressing module 220 according to the amplified tension.

[0072] In some embodiments, the tension control device 20 further comprises a compensation tension module. The compensation tension module is located between the pressing module 220 and the tension detection module 230 along the transmission direction of the strip L. The compensation tension module is electrically connected to the controller 250. In this way, the controller 250 controls the compensation tension module to compensate the tension of the strip L according to the tension of the strip. The structure of the compensation tension module will be described in detail below. Figure 4 and Figure 2 The structure of the compensation tension module will be described in detail below. Figure 2 To Figure 4 The compensation tension module and the strip L are matched.

[0073] As Figure 2 and Figure 4 shown, the compensation tension module 260 comprises a floating stick 261 and a floating cylinder 262. Wherein, the floating stick 261 is located between the pressing module 220 and the tension detection module 230 along the transmission direction of the strip L, the axial direction of the floating stick 261 is perpendicular to the transmission direction of the strip L and the thickness direction of the strip L, and the top of the floating stick 261 is in contact with the strip L. The floating cylinder 262 is fixedly connected to the bottom plate 211, and the piston rod of the floating cylinder 262 is fixedly connected to the floating stick 261.

[0074] As Figure 2As shown, the compensation tensioning module 260 further comprises a position-adjusting proportional valve 270, which is pneumatically connected with the floating cylinder 262 (e.g. via a gas pipe) and electrically connected with the controller 250. In the present embodiment, the controller 250 is further configured to control the position-adjusting proportional valve 270 to adjust the air pressure in the floating cylinder 262 according to the tension of the strip L, so that the piston rod of the floating cylinder 262 drives the floating rod 261 and the strip L to move along the thickness direction of the strip L.

[0075] As shown, Figure 2 As shown, the compensation tensioning module 260 further comprises an upper support seat 263 and a lower support seat 264, which are arranged opposite to each other along the thickness direction of the strip L. Along the thickness direction of the strip L, the upper support seat 263 and the lower support seat 264 are located on both sides of the bottom plate 211. Along the thickness direction of the strip L, the projection of the upper support seat 263 at least partially overlaps with the projection of the bottom plate 211.

[0076] The upper support seat 263 comprises an upper front side plate 2631, an upper main plate 2632 and an upper rear side plate 2633, which are sequentially fixedly connected. The upper front side plate 2631 and the upper rear side plate 2633 are arranged opposite to each other along the axial direction of the floating rod 261, and are respectively fixedly connected with the bottom plate 211.

[0077] The lower support seat 264 comprises a lower front side plate 2641, a lower main plate 2642 and a lower rear side plate 2643, which are sequentially fixedly connected. The lower front side plate 2641 and the lower rear side plate 2643 are arranged opposite to each other along the axial direction of the floating rod 261. At least one limiting column 265 is fixedly connected on the lower support seat 264, and is located between the upper support seat 263 and the lower support seat 264. The axial direction of the limiting column 265 is parallel to the thickness direction of the strip L. In addition, along the thickness direction of the strip L, the projection of each limiting column 265 at least partially overlaps with the projection of the upper main plate 2632. The lower main plate 2642 has a through hole A penetrating through the lower main plate 2642 along the thickness direction of the strip L. The piston rod of the floating cylinder 262 is fixedly connected on the upper main plate 2632 through the through hole A, and the lower support seat 264 is fixedly connected with the bottom plate 211.

[0078] The bottom plate 211 has a through hole B penetrating through the bottom plate 211 along the thickness direction of the strip L. Along the thickness direction of the strip L, the projection of the upper support seat 263 is located within the projection of the through hole B of the bottom plate 211. In this way, under the action of the floating cylinder 262, the piston rod of the floating cylinder 262 can drive the upper support seat 263 to move up and down along the thickness direction of the strip L through the through hole B.

[0079] The controller 250 determines that the position of the floating roll 261 needs to be adjusted according to the tension of the strip L detected by the tension detection device 230, and sends a command to the position adjustment proportional valve 270. In turn, the position adjustment proportional valve 270 adjusts the air pressure in the floating cylinder 262, so that the piston rod of the floating cylinder 262 drives the upper support seat 264 to move along the thickness direction of the strip L, so as to realize the movement of the floating roll 261 and the strip L along the thickness direction of the strip L.

[0080] In some embodiments, in order to prevent the strip L from being warped, arched, and the like during transmission, the tension control device 20 is further provided with a compression roller. In some embodiments, in order to control the transmission direction of the strip L, the tension control device is further provided with a guide roller. During the transmission of the strip L, the strip L is transmitted around the bottom of the compression roller or the guide roller.

[0081] In one embodiment, the compensation tensioning module 260 is provided with a compression roller and a guide roller. Specifically, as shown in Figure 2 , the tension control device 20 further includes a first front compression roller 281, a first rear compression roller 282, and a first guide roller 283. In the direction of winding the strip L, the first front compression roller 281 and the first rear compression roller 282 are respectively located on both sides of the floating roll 261, and the first guide roller 283 is located on the side of the first rear compression roller 282 away from the floating roll 261. In addition, the axial direction of the first front compression roller 281, the axial direction of the first rear compression roller 282, and the axial direction of the first guide roller 283 are respectively parallel to the axial direction of the floating roll 261.

[0082] In one embodiment, the tension detection module 230 is provided with a compression roller. As shown in Figure 5 , the tension control device 20 further includes a second front compression roller 284 and a second rear compression roller 285. In the direction of winding the strip L, the second front compression roller 284 and the second rear compression roller 285 are respectively located on both sides of the tension detection roll 231. In addition, the axial direction of the second front compression roller 284 and the axial direction of the second rear compression roller 285 are respectively parallel to the axial direction of the tension detection roll 231.

[0083] In one embodiment, as shown in Figure 5 , the compression module 220 is provided with a second guide roller 286. The second guide roller 286 is located on the side of the compression module 220 away from the tension detection module 230. In addition, the axial direction of the second guide roller 286 is parallel to the axial direction of the tension detection roll 231.

[0084] In some embodiments, in order to prevent the strip L from being warped, arched, and the like during winding, the tension control device 20 further includes a pre-compression module and a driving module of the pre-compression module.

[0085] In one embodiment, along the conveying direction of the conveyor belt L, the clamping module 220 is located between the pre-clamping module and the tension detection module 230. Furthermore, the specific structure of the pre-clamping module is the same as that of the clamping module 220 described above, and the corresponding drive module of the pre-clamping module has the same structure as the pressure regulating proportional valve 240 described above. The pre-clamping module pre-clamps the conveyor belt L by applying pressure to it through two pressure plates within the pre-clamping module. For the specific structure of the pre-clamping module in this embodiment, refer to the specific structure of the clamping module 220 described above; it will not be repeated here.

[0086] In some embodiments, to expand the tension adjustment range of the tension control device 20 for the strip L, the tension control device 20 is provided with multiple sets of clamping modules 220. Furthermore, in some embodiments, to improve the accuracy of the tension adjustment of the tension control device 20 for the strip L, the tension control device 20 is provided with multiple sets of pressure regulating proportional valves 240. The multiple sets of clamping modules 220 and the multiple sets of pressure regulating proportional valves 240 correspond one-to-one.

[0087] It should be noted that in embodiments where the tension control device 20 includes multiple sets of clamping modules 220 and multiple sets of pressure regulating proportional valves 240, the electrical connection between the pressure regulating proportional valves 240 and the controller 250 can be understood as each set of pressure regulating proportional valves 240 being electrically connected to the controller 250. Furthermore, the pneumatic connection between the pressure regulating proportional valves 240 and the clamping cylinders 221 can be understood as each set of pressure regulating proportional valves 240 being pneumatically connected to the clamping cylinder 221 in its corresponding clamping module 220.

[0088] In some embodiments, the opposing surfaces of the two pressure plates are each covered with felt. Specifically, the surface of the upper pressure plate 222 facing the lower pressure plate 223, and the surface of the lower pressure plate 223 facing the upper pressure plate 222, are each covered with felt. Accordingly, when the strip L passes between the upper pressure plate 222 and the lower pressure plate 223, scratches on the strip L by the upper pressure plate 222 and the lower pressure plate 223 are avoided. Furthermore, short circuits in the core of the axial flux motor after the strip L is wound are prevented.

[0089] The following is combined with Figure 5 The process of adjusting the tension of the belt L by the tension control device 20 is described in detail.

[0090] like Figures 2 to 5 As shown, the tension control device 20 adjusts the tension of the strip L once via S301 to S306, and adjusts the tension of the strip L again via S401 to S406. S301 to S306 and S401 to S406 will be described in detail below.

[0091] S301, the tension sensor detects the first tension value of the strip L.

[0092] During the transmission of the strip L, the winding device 50 pulls the strip L, and the strip L generates tension. In addition, since the strip L passes above the tension detection rod 231, the strip L exerts pressure on the tension detection rod 231, and the tension detection rod 231 further exerts pressure on the tension sensor 232. In this way, the tension sensor 232 can detect the tension value of the strip L according to the pressure of the tension detection rod 231.

[0093] It should be noted that the connection between the tension sensor 232 and the tension detection rod 231 can be understood as a mechanical connection between the tension sensor 232 and the tension detection rod 231.

[0094] S302, the tension sensor 232 sends the first tension value to the controller 250.

[0095] It should be noted that the tension sensor 232 needs to convert the first tension value into a corresponding voltage signal and send the voltage signal corresponding to the first tension value to the controller 250.

[0096] S303, the controller 250 determines whether to adjust the pressure of the strip L according to the first tension value.

[0097] Specifically, S303 includes S1-S3. Details of S1-S3 are described below.

[0098] S1, the controller 250 obtains the radius of the strip L wound by the winding device 50 at the first time, and the first time is the time when the tension sensor 232 detects the first tension value.

[0099] The controller 250 is electrically connected to the motor in the winding device 50 that drives the winding of the strip L. In this way, S1 specifically includes: the controller 250 first obtains the number of revolutions n of the motor from the motor that drives the winding of the strip L. Then, the controller 250 determines the radius R1 of the strip L wound by the winding device 50 at the first time according to the formula R0+n×H. Wherein, R0 is the radius of the winding roller, n is the number of revolutions of the motor at the first time, and H is the thickness of the strip L. 1＝ R0+n×H, determines the radius R1 of the strip L wound by the winding device 50 at the first time. Wherein, R0 is the radius of the winding roller, n is the number of revolutions of the motor at the first time, and H is the thickness of the strip L.

[0100] S2, the controller 250 determines the target tension value of the strip L according to the radius of the wound strip L and the target relationship. Wherein, the target relationship includes the corresponding relationship between the radius of the strip L and the tension value of the strip L.

[0101] Specifically, the controller 250 takes the tension value corresponding to the radius of the wound strip L in the target relationship as the target tension value.

[0102] In some embodiments, the target relationship is obtained based on an adaptive variable tension control algorithm using taper control. Thus, the target radius and the corresponding target tension value are negatively correlated in the target relationship, where the target radius is any one of the strip radii in the target relationship. Consequently, the inner layer of the wound strip is tightly wound, while the outer layer is loosely wound, preventing slippage between layers and improving the dimensional accuracy and flatness of the wound strip.

[0103] In some embodiments, the target relationships may be stored in the controller 250 in the form of tables, formulas, relationship diagrams, etc.

[0104] S3, the controller 250 determines whether to adjust the pressure of the belt L based on the target tension value and the first tension value.

[0105] In one embodiment, the controller 250 determines whether to adjust the pressure of the strip L based on the difference between the target tension value and the first tension value.

[0106] If the absolute value of the difference between the target tension value and the first tension value is less than or equal to a first threshold, the controller 250 determines that no pressure adjustment of the strip L is required. Accordingly, the controller 250 does not execute steps S304 and subsequent steps. If the absolute value of the difference between the target tension value and the first tension value is greater than the first threshold, the controller 250 determines that pressure adjustment of the strip L is required. The first threshold can be set according to actual conditions.

[0107] In one embodiment, the controller 250 determines whether to adjust the pressure of the strip L based on whether the target tension value is equal to the first tension value.

[0108] Specifically, when the target tension value equals the first tension value, the controller 250 determines that there is no need to adjust the pressure of the strip L. Correspondingly, the controller 250 does not execute steps S304 and subsequent steps. When the target tension value does not equal the first tension value, the controller 250 determines that the pressure of the strip L should be adjusted.

[0109] S304, the controller 250 determines the first pressure adjustment amount in the pressing cylinder 221 based on the first tension value.

[0110] Specifically, the controller 250 first determines the pressure adjustment amount for the conveyor belt L based on the first tension value and the target tension value using a variable gain proportional control algorithm. Then, the controller 250 determines the first pressure adjustment amount based on the pressure adjustment amount.

[0111] The greater the difference between the first tension value and the target tension value, the greater the gain involved in the variable gain proportional control algorithm, and the greater the pressure adjustment amount for the strip L. In this way, when the difference between the first tension value and the target tension value is large, the pressure adjustment amount for the strip L can be set to be larger, and thus the tension value of the strip L can be quickly changed from the first tension value to the target tension value. When the difference between the first tension value and the target tension value is small, the pressure adjustment amount for the strip L can be set to be smaller, and thus it can be avoided that the tension value of the strip L is changed from the first tension value to a value greater than or less than the target tension value due to a large pressure adjustment amount for the strip L.

[0112] It should be noted that the controller 250 needs to convert the first pressure adjustment amount into a corresponding voltage signal, and send the voltage signal corresponding to the first pressure adjustment amount to the pressure regulating proportional valve 240 after amplification, calibration and other processing.

[0113] S305, the controller 250 sends first indication information to the pressure regulating proportional valve 240. The first indication information is used to indicate that the pressure in the pressing cylinder 221 is increased or decreased according to the first pressure adjustment amount.

[0114] In the case where the target tension value is greater than the first tension value, the first indication information is used to indicate that the pressure in the pressing cylinder 221 is increased according to the first pressure adjustment amount. In the case where the target tension value is less than the first tension value, the first indication information is used to indicate that the pressure in the pressing cylinder 221 is decreased according to the first pressure adjustment amount.

[0115] It should be noted that the first indication information used to indicate that the pressure in the pressing cylinder 221 is increased or decreased according to the first pressure adjustment amount can be understood as the first indication information not only indicates the first pressure adjustment amount but also indicates that the pressure in the pressing cylinder 221 is increased or decreased.

[0116] S306, the pressure regulating proportional valve 240 increases or decreases the pressure in the pressing cylinder 221 according to the first indication information, so that the piston rod in the pressing cylinder 221 moves and increases or decreases the pressure of the strip L by the upper pressing plate 222 and the lower pressing plate 223.

[0117] In the case where the target tension value is greater than the first tension value, the first indication information is used to indicate that the pressure in the pressing cylinder 221 is increased according to the first pressure adjustment amount. Correspondingly, the pressure regulating proportional valve 240 increases the pressure in the pressing cylinder 221 according to the first indication information, so that the piston rod in the pressing cylinder 221 moves and increases the pressure of the strip L by the upper pressing plate 222 and the lower pressing plate 223. In turn, the normal pressure between the upper pressing plate 222 and the strip L increases, and the frictional force between the upper pressing plate 222 and the strip L also increases, so that the tension of the strip L increases.

[0118] In the case that the target tension value is less than the first tension value, the first instruction information is used to instruct to decrease the first pressure adjustment amount in the pressing cylinder 221. Correspondingly, the pressure regulating proportional valve 240 decreases the pressure in the pressing cylinder 221 according to the first instruction information, so as to make the piston rod in the pressing cylinder 221 move and decrease the pressure of the upper pressing plate 222 and the lower pressing plate 223 on the strip L. In turn, the normal pressure between the upper pressing plate 222 and the strip L decreases, and the friction force between the upper pressing plate 222 and the strip L also decreases, so that the tension of the strip L decreases.

[0119] It should be noted that in the embodiment in which the tension control device 20 includes multiple sets of pressing modules 220 and multiple sets of pressure regulating proportional valves 240, between S304 and S305, the controller 250 also needs to determine the first pressure adjustment amount in the pressing cylinder 221 of each set of pressing modules 220. In S305, the controller 250 sends corresponding first instruction information to the pressure regulating proportional valve 240 corresponding to each set of pressing modules 220. In S306, each set of pressure regulating proportional valves 240 increases or decreases the pressure in the pressing cylinder 221 corresponding to each set of pressure regulating proportional valves 240 according to the corresponding first instruction information, so as to make the piston rod in the pressing cylinder 221 move and increase or decrease the pressure of the upper pressing plate 222 and the lower pressing plate 223 on the strip L. In turn, the multiple sets of pressing modules 220 adjust the pressure on the strip L by the pressure adjustment amount described in S304.

[0120] In some embodiments, after S306, the tension detection module 230 can also detect the tension value of the strip L again to determine whether the tension adjustment on the strip L is in place through S301-S306. Correspondingly, as shown in FIG. 4, the tension control device 20 also adjusts the tension of the strip L through S401-S406. Figures 6 to 9

[0121] S401, the tension sensor 232 detects a second tension value of the strip L at a second time. Wherein, the second time is later than the first time.

[0122] The specific process of S401 is similar to that of S301, and the related description of S401 can refer to the related description of S301, which will not be repeated here.

[0123] S402, the tension sensor 232 sends the second tension value to the controller 250.

[0124] The specific process of S402 is similar to that of S302, and the related description of S402 can refer to the related description of S302, which will not be repeated here.

[0125] ​S403, the controller 250 determines whether to continue adjusting the pressure of the strip L according to the second tension value.

[0126] In an embodiment, the controller 250 determines whether to continue adjusting the pressure of the strip L according to a difference between the target tension value and the second tension value.

[0127] Specifically, in a case where an absolute value of the difference between the second tension value and the target tension value is less than or equal to a second threshold value, the controller 250 ends the adjustment of the pressure of the strip L. In a case where the absolute value of the difference between the second tension value and the target tension value is greater than the second threshold value, the controller 250 determines to continue adjusting the pressure of the strip L.

[0128] In an embodiment, the controller 250 determines whether to continue adjusting the pressure of the strip L according to whether the second target tension value is equal to the second tension value.

[0129] Specifically, in a case where the second tension value is equal to the target tension value, the controller 250 ends the adjustment of the pressure of the strip L. Thereafter, the tension control device 20 can continue to implement the next closed-loop control of the tension of the strip L through S301 to S403. In a case where the second tension value is not equal to the target tension value, the controller 250 determines to continue adjusting the pressure of the strip L.

[0130] In a case where the controller 250 determines to continue adjusting the pressure of the strip L, the controller 250 further needs to perform step S404.

[0131] S404, the controller 250 determines a second pressure adjustment amount in the pressure cylinder 221 according to the second tension value.

[0132] The specific process of S404 is to replace the first tension value described in S304 with the second tension value, replace the first pressure adjustment amount with the second pressure adjustment amount, and replace the first indication information with the second indication information, which will not be repeated here.

[0133] S405, the controller 250 sends the second indication information to the pressure adjustment proportional valve 240, and the second indication information is used to instruct to increase or decrease the pressure in the pressure cylinder 221 according to the first pressure adjustment amount.

[0134] The specific process of S405 is to replace the first tension value described in S305 with the second tension value, replace the first pressure adjustment amount with the second pressure adjustment amount, and replace the first indication information with the second indication information, which will not be repeated here.

[0135] S406, the pressure regulating proportional valve 240 increases or decreases the pressure in the pressing cylinder 221 according to the second indication information, so that the piston rod in the pressing cylinder 221 moves and the pressure of the upper pressing plate 222 and the lower pressing plate 223 on the strip L is increased or decreased.

[0136] The specific process of S406 is that the first tension value in S306 is replaced by the second tension value, the first pressure adjustment amount is replaced by the second pressure adjustment amount, and the first indication information is replaced by the second indication information. Here, no further description is given.

[0137] In some embodiments, the controller 250 and the display device are electrically connected. In this way, the controller 250 can also send the tension values such as the first tension value and the second tension value sent by the tension sensor 232 to the display device. Further, the display device can display the first tension value and the second tension value on the touch screen, and the operator can send control commands through the touch screen according to the actual working state, thereby realizing the human-computer interaction process well.

[0138] The above, combined with Figure 6 The tension control device 20 for strip winding provided by the embodiments of the present application is described in detail. Hereinafter, the tension control device 20 for strip winding provided by the embodiments of the present application is described in detail. Figure 7 The tension control device 20 for strip winding provided by the embodiments of the present application is described in detail. Hereinafter, the tension control device 20 for strip winding provided by the embodiments of the present application is described in detail.

[0139] Figure 6 The assembly structure diagram of the deviation rectifying device 40 provided by the embodiments of the present application is shown. Figure 6 The assembly structure diagram of the deviation rectifying device 40 provided by the embodiments of the present application is shown. Figure 6 The explosion diagram of the deviation rectifying device 40 is shown.

[0140] As shown in Figure 6As shown, the deviation rectifying device 40 comprises a deviation rectifying support 410, a first position sensor 420, a deviation rectifying module 430, and a controller 440. The first position sensor 420 and the deviation rectifying module 430 are arranged along the first direction, and the first position sensor 420 is fixedly connected with the deviation rectifying module 430. The strip L passes through the first position sensor 420 and is connected with the winding roller 510. The winding roller 510 is a roller for winding the strip L. The axis of the winding roller 510 is parallel to the third direction. The third direction, the first direction, and the second direction are perpendicular to each other. The second direction is parallel to the thickness direction of the strip L. The deviation rectifying module 430 and the deviation rectifying support 410 are arranged along the second direction. The deviation rectifying module 430 and the deviation rectifying support 410 are slidingly connected along the third direction. The deviation rectifying module 430 is rotationally connected with the winding roller 510. Along the second direction, the connecting line of the projection of the center point of the winding roller 510 and the projection of the center point of the first position sensor 420 is parallel to the first direction. The controller 440 is electrically connected with the first position sensor 420 and the deviation rectifying module 430, respectively. The controller 440 is configured to receive the position of the strip L along the third direction detected by the first position sensor 420, and control the deviation rectifying module 430 to adjust the position of the strip L along the third direction according to the position of the strip L along the third direction.

[0141] The position of the strip L along the third direction can be understood as the position of the center line of the strip L along the width direction of the strip L along the third direction. Correspondingly, adjusting the position of the strip L can be understood as adjusting the position of the center line of the strip L along the width direction of the strip L.

[0142] The center point of the winding roller 510 can be understood as the center point of the wound strip L under the condition that the layers of the wound strip L do not slip. Since, along the second direction, the connecting line of the projection of the center point of the winding roller 510 and the projection of the center point of the first position sensor 420 is parallel to the first direction. Thus, the position of the strip L along the third direction detected by the first position sensor 420 is the position of the strip L deviating from the reference center line along the third direction. The position of the reference center line is the connecting line of the projection of the center point of the winding roller 510 and the projection of the center point of the first position sensor 420 along the second direction.

[0143] During the transmission of the strip L, the first position sensor 420 in the deviation rectifying device 40 can detect the position of the strip L deviating from the reference center line in real time, and transmit the position to the controller 440 in real time, so that the controller 440 controls the deviation rectifying module 430 to adjust the position of the strip L, realizes closed-loop control of the position of the strip L along the third direction, reduces the deviation of the strip L, improves the dimensional accuracy and flatness of the wound strip L, i.e., the core, and improves the performance of the axial flux motor.

[0144] In some embodiments, the deviation rectifying support 410 is fixedly connected to the frame. In the first direction, the deviation rectifying support 410 and the frame are slidingly connected.

[0145] In some embodiments, as shown in Figure 6 In some embodiments, the deviation rectifying device 40 further comprises a bracket 423, which is fixedly connected to the first position sensor 420 and the deviation rectifying module 430. In addition, the deviation rectifying module 430 is rotatably connected to the winding roller 510. It can be understood that, relative to the deviation rectifying module 430, the winding roller 510 can rotate in the third direction. In addition, the deviation rectifying module 430 can drive the bracket 423 and the winding roller 510 to move in the third direction.

[0146] In an embodiment, the first position sensor 420 is a digital sensor. In this way, the position of the strip L detected by the first position sensor 420 is accurate.

[0147] For example, the first position sensor 420 is a digital optical sensor. As shown in Figure 6 The first position sensor 420 comprises a light emitter 421 and a light receiver 422, which are arranged in the second direction. The strip L is connected to the winding roller 510 through the gap between the light emitter 421 and the light receiver 422.

[0148] In some embodiments, in order to prevent the strip L below the first position sensor 420 from vibrating, so that the position of the strip L in the third direction detected by the first position sensor 420 is not accurate, the deviation rectifying device 40 is further provided with a pressing module. Through the pressing module in the deviation rectifying device 40, the strip L below the first position sensor 420 can be clamped to prevent the strip L below the first position sensor 420 from shaking, so that it can run smoothly. In turn, the detection accuracy of the first position sensor 420 on the position of the strip L deviating from the reference center line is improved.

[0149] As shown in Figure 7As shown, the clamping module of the correction device 40 includes a set of pressure rollers 460 and another set of pressure rollers 470. The pressure rollers 460 and 470 are arranged along a first direction. The pressure rollers 460 include a first upper pressure roller 461 and a first lower pressure roller 462, which are arranged along a second direction, with the axial directions of the first upper pressure roller 461 and the first lower pressure roller 462 parallel to a third direction. The other set of pressure rollers 470 includes a second upper pressure roller 471 and a second lower pressure roller 472, which are arranged along the second direction, with the axial directions of the second upper pressure roller 471 and the second lower pressure roller 472 parallel to a third direction. The first upper pressure roller 461, the first lower pressure roller 462, the second upper pressure roller 471, and the second lower pressure roller 472 are rotatably connected to the correction module 430. The conveyor belt L passes sequentially through the gap between the first upper pressure roller 461 and the first lower pressure roller 462, and the gap between the second upper pressure roller 471 and the second lower pressure roller 472, and connects to the winding drum 510. Furthermore, along the second direction, the projection of the primary position sensor 420 overlaps with the projections of one set of pressure rollers 460 and another set of pressure rollers 470, respectively.

[0150] The first upper pressure roller 461, the first lower pressure roller 462, the second upper pressure roller 471, and the second lower pressure roller 472 are rotatably connected to the correction module 430, which means that, relative to the correction module 430, the first upper pressure roller 461, the first lower pressure roller 462, the second upper pressure roller 471, or the second lower pressure roller 472 can rotate in a third direction. Furthermore, the movement of the correction module 430 in a third direction can drive the bracket 423, the first upper pressure roller 461, the first lower pressure roller 462, the second upper pressure roller 471, and the second lower pressure roller 472 to move in the third direction.

[0151] In some embodiments, in order to further improve the detection accuracy of the primary position sensor 420 in detecting the position of the strip L deviating from the reference center line, the primary position sensor 420 is set at the position of the center line of the two sets of pressure rollers along the second direction.

[0152] In some embodiments, the correction device 40 further includes a pressure regulating module. This module adjusts the pressure of the clamping module on the strip L, ensuring that the two sets of pressure rollers clamp the strip L below the primary position sensor 420, preventing any shaking and allowing for smooth operation. This further improves the accuracy of the primary position sensor 420 in detecting the deviation of the strip L from the reference centerline.

[0153] For example, such as Figure 7As shown, the deviation rectifying device 40 further comprises a first set of pressure adjusting modules 480 and a second set of pressure adjusting modules 490. The first set of pressure adjusting modules 480 comprises a first lower support plate 481, a first upper support plate 482 and a first spring 483, and the first upper support plate 482, the first spring 483 and the first lower support plate 481 are arranged in sequence along the second direction. In addition, the first upper support plate 482 and the first lower support plate 481 are fixedly connected with the support 423 respectively, the first lower support plate 481 is rotationally connected with the first upper roller 461, and the first spring 483 is elastically connected with the first upper support plate 482 and the first lower support plate 481 respectively along the second direction. The second set of pressure adjusting modules 490 comprises a second lower support plate 491, a second upper support plate 492 and a second spring 493, and the second upper support plate 492, the second spring 493 and the second lower support plate 491 are arranged in sequence along the second direction. In addition, the second upper support plate 492 and the second lower support plate 491 are fixedly connected with the support 493 respectively, the second lower support plate 491 is rotationally connected with the second upper roller 471, and the second spring 493 is elastically connected with the second upper support plate 492 and the second lower support plate 491 respectively along the second direction. Correspondingly, the deviation rectifying device 40 adjusts the pressure of the first upper roller 461 on the strip L through the first spring 483, and adjusts the pressure of the second upper roller 471 on the strip L through the second spring 493.

[0154] In an embodiment, the first position sensor 420 is electrically connected with the controller 440 through the deviation rectifying controller. In this way, the first position sensor 420 transmits the position of the strip L along the third direction detected by it to the deviation rectifying controller first, and then the deviation rectifying controller transmits the position of the strip L along the third direction to the controller 440, and then the controller 440 controls the deviation rectifying module 430 to adjust the position of the strip L along the third direction according to the position of the strip L along the third direction.

[0155] In some embodiments, the deviation rectifying module 430 converts the rotary motion into linear motion to achieve the adjustment of the position of the strip L along the third direction.

[0156] In an embodiment, the deviation rectifying module 430 converts the rotary motion into linear motion through a screw and a sliding block.

[0157] As Figure 8As shown, the correction module 430 includes a motor 431, a lead screw 432, a slider 433, and a slide rail 434. The motor shaft of the motor 431 is fixedly connected to the lead screw 432, and the motor 431 is electrically connected to the controller 440. The motor 431 is fixedly connected to the correction support base 410, and the axial directions of both the motor 431 shaft and the lead screw 432 are parallel to a third direction. The slider 433 is sleeved on the lead screw 432 and threadedly connected to it. The slider 433 is slidably connected to the slide rail 434 along a third direction, and the slider 433 is rotatably connected to the winding roller. The slider 433 and the slide rail 434 are arranged along a second direction on both sides of the motor 431 shaft, and the slide rail 434 is fixedly connected to the correction support base 410.

[0158] In one embodiment, motor 431 is electrically connected to controller 440 via a motor driver. Thus, controller 440 controls motor 431 via the motor driver to adjust the position of the conveyor belt L in a third direction.

[0159] In one example, such as Figure 9 As shown, the web guiding module 430 also includes a nut 435, which is fixedly connected to the slider 433. The nut 435 is sleeved on the lead screw 432 and threadedly connected to the lead screw 432 along a third direction. When the motor 431 drives the lead screw 432 to rotate, the engagement between the threads of the lead screw 432 and the nut 435 allows the nut 435 to slide along the width direction of the strip L. Consequently, the nut 435 can drive the slider 433 to slide along the width direction of the strip L. For ease of description, this example is referred to as Example 1 of the web guiding module 430.

[0160] In one example, slider 433 has a through hole extending along a third direction, and the wall of the through hole is threaded. Lead screw 432 is threadedly connected to the through hole. When motor 431 drives lead screw 432 to rotate, the interaction between lead screw 432 and the threads on the wall of the through hole allows slider 433 to slide along the width direction of the strip L. For ease of description, this example is referred to as Example 2 of the correction module 430.

[0161] In some embodiments, along a third direction, the size of the slider 433 is less than or equal to the size of the slide rail 434. This reduces the volume of the correction module 430 and the space occupied by the correction module 430 as the slider 433 moves along the slide rail 434.

[0162] In one embodiment, the correction module 430 achieves the conversion of rotational motion to linear motion through a gear and rack.

[0163] For example, the deviation rectifying module 430 comprises a motor, a gear and a rack. The gear is rotationally connected to a motor shaft of the motor, and the motor shaft is perpendicular to the third direction in an axial direction. The rack is fixedly connected to the seat supporting the winding roller 510, and the length direction of the sliding block is parallel to the third direction. During the rotation of the rack driven by the motor, the rack and the rack cooperate with each other, so that the rack can slide along the width direction of the strip L, and in turn, the rack can drive the sliding block to slide along the width direction of the strip L. For the convenience of description, this example is recorded as example 3 of the deviation rectifying module 430.

[0164] In some embodiments, the deviation rectifying module 430 directly adjusts the position of the strip L along the third direction through linear motion.

[0165] For example, the deviation rectifying module 430 comprises a linear motor, and a motor shaft of the linear motor is fixedly connected to the seat supporting the winding roller 510, and the axial direction of the motor shaft of the linear motor is parallel to the third direction. During the operation of the linear motor, the seat supporting the winding roller 510 can move along the third direction. For the convenience of description, this example is recorded as example 4 of the deviation rectifying module 430.

[0166] In some embodiments, the deviation rectifying device 40 further comprises a second position sensor 450 fixedly connected to the deviation rectifying module 430. The controller 440 is further configured to receive a displacement of the deviation rectifying module 430 along the third direction detected by the second position sensor 450, and determine whether to continue to control the deviation rectifying module 430 to adjust the position of the strip L along the third direction according to the displacement of the deviation rectifying module 430 along the third direction.

[0167] In one embodiment, as shown in Figure 2 and Figure 6 The second position sensor 450 comprises a grating ruler 451 and a reading head 452.

[0168] In the above example 1, the grating ruler 451 is fixedly connected to the sliding rail 434, and the length direction of the grating ruler 451 is parallel to the third direction. The reading head 452 is fixedly connected to the sliding block 433, and the reading head 452 is electrically connected to the motor driver. Along the first direction, the projection of the reading head 452 and the projection of the grating ruler 451 overlap.

[0169] In the above example 2, the grating ruler 451 is fixedly connected to the deviation rectifying support seat 410, and the length direction of the grating ruler 451 is parallel to the third direction. The reading head 452 is fixedly connected to the sliding block 433, and the reading head 452 is electrically connected to the motor driver. Along the first direction, the projection of the reading head 452 and the projection of the grating ruler 451 overlap.

[0170] In the above example 3, the scale 451 is fixedly connected to the deviation rectifying support seat 410, and the length direction of the scale 451 is parallel to the third direction. The read head 452 is fixedly connected to the rack, and the read head 452 is electrically connected to the motor driver. Along the first direction, the projection of the read head 452 and the scale 451 overlap.

[0171] In the above example 4, the scale 451 is fixedly connected to the deviation rectifying support seat 410, and the length direction of the scale 451 is parallel to the third direction. The read head 452 is fixedly connected to the seat supporting the winding roller 510, and the read head 452 is electrically connected to the motor driver. Along the first direction, the projection of the read head 452 and the scale 451 overlap.

[0172] In an embodiment, the secondary position sensor 450 is a grating sensor, the scale 451 is a grating scale, and the read head 452 is a grating read head. In an embodiment, the secondary position sensor 450 is a magnetic grating sensor, the scale 451 is a magnetic grating scale, and the read head 452 is a magnetic grating read head.

[0173] In an embodiment, along the third direction, the size of the read head 452 is less than or equal to the size of the slider 433. In this way, the volume of the deviation rectifying module 430 is reduced, and the space occupied by the deviation rectifying module 430 during the movement of the slider 433 along the slide rail 434 is reduced.

[0174] In an embodiment, along the third direction, the size of the scale 451 is less than or equal to the size of the slide rail 434. In this way, the volume of the deviation rectifying module 430 is reduced, and the space occupied by the deviation rectifying module 430 during the movement of the slider 433 along the slide rail 434 is reduced.

[0175] In an embodiment, along the third direction, the size of the read head 452 is less than the size of the scale 451. In this way, the volume of the deviation rectifying module 430 is reduced, and the space occupied by the deviation rectifying module 430 during the movement of the slider 433 along the slide rail 434 is reduced.

[0176] It should be noted that in the embodiment in which the coiling device 1 includes the tension control device 20 and the deviation rectifying device 40, in order to reduce the cost of the coiling device 1, the controller 250 in the tension control device 20 and the controller 440 in the deviation rectifying device 40 are set as the same controller.

[0177] In addition, the controller 250 or the controller 440 involved in the embodiments of the present application can be a programmable logic controller, which is also called programmable logic controller or simply PLC. Generally, the PLC is usually installed in an electric control cabinet or an electric control box. Figure 10 The position of the controller 250 and Figure 11 The position of the controller 440 is only schematic.

[0178] In the process of the strip transmission, as shown in Figure 10 S501 to S506 are implemented by the deviation rectifying device 40 to close-loop rectify the position of the strip L. The S501 to S506 are described in detail as follows.

[0179] S501, the first position sensor 420 detects the position of the strip L along the third direction.

[0180] S502, the first position sensor 420 sends the position of the strip L along the third direction to the controller 440.

[0181] S503, the controller 440 determines whether to rectify the position of the strip L along the third direction according to the position of the strip L along the third direction.

[0182] The center point of the first position sensor 420 is located between the reference point and the center point of the winding roller along the first direction, that is, along the first direction, the reference point is on the extension line of the center point of the first position sensor 420 and the center point of the winding roller, and the line connecting the reference point, the center point of the first position sensor 420 and the center point of the winding roller can be considered as the reference center line of the strip along the second direction in an ideal case. In this way, the triangle formed by the reference point, the center point of the first position sensor 420 and the position of the strip deviating from the reference center line, and the triangle formed by the reference point, the center point of the winding roller and the position of the winding roller deviating from the reference center line are similar triangles. Based on the principle of triangle similarity, the controller 440 calculates the rectification amount of the strip deviating from the reference center line at the winding roller, that is, the rectification amount y of the position of the strip L according to the following formula (2):

[0183] y=L1×△y / (L-L0) (2)

[0184] Wherein, L1 is the distance between the reference point and the center point of the winding roller along the first direction, and the center point of the first position sensor 420 is located between the reference point and the center point of the winding roller along the first direction. L0 is the distance between the center point of the first position sensor 420 and the center point of the winding roller along the first direction. △y is the distance between the position of the strip detected by the first position sensor 420 along the third direction and the center point of the first position sensor 420 along the third direction.

[0185] In an embodiment, the position of the reference point is a preset position.

[0186] It should be noted that the △y involved in the embodiments of the present application has positive and negative. For example, if the position of the strip L detected by the first position sensor 420 along the third direction is located behind the reference center line along the third direction, then △y is negative. Correspondingly, if the position of the strip L detected by the first position sensor 420 along the third direction is located in front of the reference center line along the third direction, then △y is positive.

[0187] like ​ As shown, the solid line represents the position where the strip L does not deviate, and the dashed line represents the position where the strip L deviates. Point A is the reference point, point B is the center point of the first-level position sensor 420 along the third direction, point C is the center point of the winding roller 510 along the third direction in the conveying direction of the strip L, point B1 is the position of the strip L along the third direction detected by the first-level position sensor 420, and point C1 is the offset of the strip L along the third direction. Thus, line segment AC is the reference center line of the strip, triangles ABB1 and ACC1 are two similar triangles, the distance between points A and C is L1, the distance between points B and B1 is Δy, the distance between points B and C is L0, and the distance between points C and C1 is y.

[0188] In some embodiments, when the absolute value of the correction amount y at the position of the material L is less than or equal to the threshold, the deviation of the material L is not particularly serious, and the controller 440 can promptly correct the position of the material L along the third direction by controlling the correction module 430.

[0189] When the absolute value of the correction amount y at the position of the material L is greater than the threshold, the deviation of the material L is particularly serious. In order not to affect the normal transmission of the material L, the controller 440 issues an alarm signal so that the operator can manually correct the position of the material L along the third direction.

[0190] S504, the controller 440 determines the number of rotations of the motor 431 based on the correction amount y of the position of the conveyor belt L.

[0191] In one embodiment, the controller 440 determines the number of rotations of the motor 431 based on the correction amount y of the position of the conveyor belt L using a proportional-integral-derivative (PID) control algorithm.

[0192] It should be noted that the number of rotations of the motor 431 involved in this embodiment also has positive and negative directions. For example, if Δy is negative, the number of rotations of the motor 431 is in the positive direction, and during the rotation of the motor 431 according to the number of rotations, it can drive the slider 433 to move in the opposite direction of the third direction. Correspondingly, if Δy is positive, the number of rotations of the motor 431 is in the negative direction, and during the rotation of the motor 431 according to the number of rotations, it can drive the slider 433 to move in the third direction.

[0193] S505, the controller 440 sends rotation count indication information to the motor driver. This rotation count indication information is used to indicate the number of rotations of the motor 431.

[0194] S506, the motor driver drives the motor 431 to rotate according to the rotation number indication information, so that the lead screw 432 rotates, the sliding block 433 slides on the sliding rail 434, and the winding roller 510 moves to the direction close to the center of the first position sensor 420.

[0195] In the embodiment in which the deviation rectifying device 40 further comprises the second position sensor 450, the second position sensor 450 can also detect whether the position of the strip L rectified by the deviation rectifying module 430 along the third direction is adjusted in place. Correspondingly, as shown in ​ S507-S509, the deviation rectifying device 40 further determines whether to continue to control the deviation rectifying module 430 to adjust the position of the strip L along the third direction.

[0196] S507, the second position sensor 450 detects the distance of the sliding block 433 moving along the third direction.

[0197] S508, the second position sensor 450 sends the distance of the sliding block 433 moving along the third direction to the motor driver.

[0198] S509, the motor driver determines whether to continue to control the deviation rectifying module 430 to adjust the position of the strip L along the third direction according to the distance of the sliding block 433 moving along the third direction.

[0199] In an embodiment, if the distance of the sliding block 433 moving along the third direction is equal to the deviation rectification amount y of the position of the strip L in S503, the controller 440 determines to end the deviation rectification of the position of the strip L along the third direction.

[0200] If the distance of the sliding block 433 moving along the third direction is less than the deviation rectification amount y of the position of the strip L in S503, the motor driver determines and continues to control the deviation rectifying module 430 to adjust the position of the strip L along the third direction until the distance of the sliding block 433 moving along the third direction is equal to the deviation rectification amount y of the position of the strip L in S503.

[0201] The controller 440, the deviation rectifying controller, and the motor driver described above can be collectively referred to as a control module.

[0202] It should be understood that the specific examples in the above embodiments are only to help those skilled in the art better understand the embodiments of the present application, and do not limit the scope of the embodiments of the present application. It should also be understood that the size of the serial number of each process does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0203] Those skilled in the art can understand that the modules and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is performed in hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0204] In several embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. For example, the apparatus embodiments described above are only illustrative, for example, the division of the modules is only a logical functional division, and actual implementation can have another division manner, for example, multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0205] The above describes only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A punching and coiling device, characterized in that, The punching and coiling equipment includes a grooving device, a correction device, and a winding device. The correction device is arranged between the grooving device and the winding device. The grooving device is used to groove the strip material, which is the core of an axial flux motor. The correction device is used to correct the position of the strip material. The winding device includes a winding roller, which is used to wind the strip material to obtain the core of the axial flux motor. The correction device includes a correction support, a primary position sensor, a correction module, and a control module, wherein: The primary position sensor and the correction module are arranged along a first direction. The primary position sensor and the correction module are fixedly connected. The strip material is connected to the winding roller via the primary position sensor. The axial direction of the winding roller is parallel to a third direction. The third direction, the first direction, and the second direction are perpendicular to each other. The second direction is parallel to the thickness direction of the strip material. The correction module and the correction support are arranged along the second direction, the correction module and the correction support are slidably connected along the third direction, and the correction module is rotatably connected to the winding roller. Along the second direction, the line connecting the projection of the center point of the winding roller and the projection of the center point of the primary position sensor is parallel to the first direction. The control module is electrically connected to the primary position sensor and the correction module respectively. The control module is used to receive the position of the strip along the third direction detected by the primary position sensor, and control the correction module to slide along the third direction according to the position of the strip along the third direction, so as to adjust the position of the strip.

2. The punching and coiling equipment according to claim 1, characterized in that, The correction module includes a motor, a lead screw, a slider, and a slide rail, wherein: The motor shaft of the motor is fixedly connected to the lead screw, the motor is electrically connected to the control module, and the motor is fixedly connected to the correction support. The axial directions of the motor shaft and the lead screw are both parallel to the third direction. The slider is sleeved on the lead screw and threadedly connected to the lead screw; the slider is slidably connected to the slide rail along the third direction; and the slider is rotatably connected to the winding drum. The slider and the slide rail are arranged on both sides of the motor shaft along the second direction, and the slide rail is fixedly mounted on the correction support.

3. The punching and coiling equipment according to claim 2, characterized in that, Along the third direction, the size of the slider is less than or equal to the size of the slide rail.

4. The punching and coiling equipment according to claim 1, characterized in that, The correction device also includes a secondary position sensor, which is fixedly connected to the correction module. The control module is also used to receive the displacement of the correction module along the third direction detected by the secondary position sensor, and determine whether to continue controlling the correction module to adjust the position of the conveyor belt along the third direction based on the displacement of the correction module along the third direction.

5. The punching and coiling equipment according to claim 4, characterized in that, The secondary position sensor includes a scale and a reader, wherein: The grid ruler is fixedly connected to the slide rail, and the length direction of the grid ruler is parallel to the third direction. The reading head is fixedly connected to the slider, and the reading head is electrically connected to the control module. Along the first direction, the projection of the reading head and the projection of the grating overlap.

6. The punching and coiling equipment according to claim 5, characterized in that, Along the third direction, the size of the reading head is less than or equal to the size of the slider, and the size of the grid ruler is less than or equal to the size of the slide rail; Along the third direction, the size of the grid ruler is less than or equal to the size of the slide rail; Along the third direction, the size of the read head is smaller than the size of the grid ruler.

7. The punching and coiling equipment according to claim 1, characterized in that, The correction device also includes two sets of pressure rollers. The two sets of pressure rollers are arranged along the first direction, each set of pressure rollers includes two pressure rollers, the two pressure rollers of each set of pressure rollers are arranged along the second direction, and the axial directions of the two pressure rollers of each set of pressure rollers are respectively parallel to the third direction, wherein: The two pressure rollers of the two sets of pressure rollers are respectively rotatably connected to the correction module. The strip material passes sequentially through the gap between two rollers in one set of pressure rollers, and the gap between two rollers in another set of pressure rollers, and connects to the winding drum. Along the second direction, the projection of the primary position sensor overlaps with the projection of each group of pressure rollers.

8. The punching and coiling equipment according to claim 7, characterized in that, The correction device further includes two sets of pressure adjustment modules. Each pressure adjustment module is used to adjust the pressure of each pressure roller on the conveyor belt. Each pressure adjustment module includes a lower support plate, an upper support plate, and a spring, wherein: Along the second direction, the upper support plate, the spring, and the lower support plate are arranged in sequence. Along the second direction, the spring is elastically connected to the upper support plate and the lower support plate, respectively. The upper support plate and the lower support plate are respectively fixedly connected to the correction module. The lower support plate of each pressure adjustment module is rotatably connected to one pressure roller of each pressure roller group.

9. The punching and coiling equipment according to any one of claims 1 to 8, characterized in that, The correction amount y for the position of the conveyor belt satisfies the following formula: y = L1 × Δy / (L1 - L0) Where: L1 is the distance between the reference point and the center point of the winding drum along the first direction, and the center point of the primary position sensor is located between the reference point and the center point of the winding drum along the first direction. L0 is the distance between the center point of the primary position sensor and the center point of the winding drum along the first direction. △y is the distance between the position of the strip along the third direction detected by the first-level position sensor and the center point of the first-level position sensor.

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