Non-contact metal strip damage-free automatic winding method and automatic winding machine

Abstract

The application provides a non-contact metal strip non-damage automatic winding method and an automatic winding machine, and belongs to the technical field of metal processing. The technical problems such as easy material abrasion and complex setting separation mode of the prior art are solved. The non-contact metal strip non-damage automatic winding machine is provided with a strip winding mechanism on a rack, a strip separation device capable of automatically arranging the interval of separation pieces is arranged on one side above the strip winding mechanism, a support hinged seat is further arranged on the rack, the strip separation device support is hinged to the strip separation device through a first hinge shaft, the strip separation device support is provided with the strip separation device on one side of the strip separation device support, and the other side is provided with a swing driving mechanism capable of driving the strip separation device support to rotate around the hinge point so that the hydraulic expansion shaft of the strip separation device is close to but not in contact with the strip and can be separated by the separation piece unit. The application has the advantages of avoiding damage to the product, high accuracy and efficiency, and adaptability to different requirements.

Description

Technical Field

[0001] This invention belongs to the field of metal processing technology, and relates to winding machine devices, and in particular to a non-contact, non-damaging automatic winding method and automatic winding machine for metal strips. Background Technology

[0002] A winding machine is a mechanical device typically located at the end of a production line. Its main function is to rewind cut strip material layer by layer in an orderly manner to form a roll. In existing technologies, due to the difficulty in continuously and stably applying appropriate pressure to the strip during winding, gaps often exist between the wound strips, leading to poor roll quality. To address this, researchers have conducted extensive research and proposed various solutions.

[0003] For example, Chinese patent literature discloses a winding machine [application number: 201220512295.7], including a drive motor, a gearbox, and a pressing arm. The gearbox is located inside the transmission, and a tilting shaft is located on the upper part of the transmission. The tilting shaft is connected to a hydraulic cylinder through a guide arm. A roller is located at the front end of the pressing arm, and a main shaft is located on the output shaft of the gearbox. In use, this invention relies on pressing the roller against the surface of the material. As the material roll grows larger, it pushes the roller upward, thereby keeping the roller and the material roll aligned and in a relatively fixed position.

[0004] While the above solution provides good and stable tightening of the strip, friction between the rollers and the material due to contact can easily lead to material wear, affecting the final product quality of the coil. Furthermore, the roller spacing arrangement is simple and the spacing method is complex, making it unsuitable for high-intensity production needs. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a non-contact, damage-free automatic winding machine for metal strips that features a simple separation method and ensures the quality of rolled products.

[0006] Another objective of this invention is to provide a non-contact, damage-free automatic winding method for metal strips.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: This non-contact, non-damaging automatic metal strip winding machine includes a frame, on which a strip winding mechanism is provided. The machine is characterized in that a strip separating device for automatically arranging the spacing of the separator plates is located on one side above the strip winding mechanism. The frame also includes a support hinge seat, which is hinged to a strip separating device support via a first hinge shaft. The strip separating device support has the strip separating device on one side and a swing drive mechanism on the other side capable of driving the strip separating device support to rotate around the hinge point, so that the hydraulic expansion shaft of the strip separating device does not contact the strip and can be separated by the separator plate units.

[0008] The strip separator, located above the strip winding mechanism, has its hydraulic expansion shaft close to the strip. This ensures the smooth operation of the strip during winding. Because the hydraulic expansion shaft does not contact the strip, it does not abrade the strip surface, thus improving the quality of the coil. Furthermore, since the strip separator can automatically arrange the spacing of the separator plates, setting the spacing requires no manual intervention, making the setup simple and easy to operate.

[0009] In the aforementioned non-contact, non-destructive automatic rewinding machine for metal strip, the strip separating device includes a hydraulic expansion shaft frame, on which a hydraulic expansion shaft is mounted. The hydraulic expansion shaft has several separating plate units. A pawl is located on one side of the hydraulic expansion shaft for moving the separating plate units axially along the hydraulic expansion shaft. The pawl is connected to a pawl drive mechanism capable of driving the pawl to move radially and axially along the hydraulic expansion shaft. The hydraulic expansion shaft has several separating plate units. Through the cooperation of the pawl and the pawl drive mechanism, the separating plate units can move axially along the hydraulic expansion shaft to the correct position, achieving efficient and accurate separation of these separating plate units. This ensures precise separation of the corresponding number and width of strip, preventing interference or overlap of the strips during the rewinding process.

[0010] In the aforementioned non-contact, damage-free automatic metal strip winding machine, the oscillating drive mechanism includes a linear drive cylinder. The lower end of the linear drive cylinder is hinged to a cylinder hinge seat, and the upper end is hinged to one end of a strip separator bracket. The other end of the strip separator bracket is equipped with the strip separator device. The linear drive cylinder is connected to a PLC control system. By connecting the linear drive cylinder to the PLC control system, precise control of the oscillation of the strip separator bracket can be achieved, ensuring that the metal strip is not damaged during winding and guaranteeing the stability and accuracy of the strip separator device during operation.

[0011] In the aforementioned non-contact, non-damaging automatic strip winding machine, the strip winding mechanism includes a winding drum connected to a winding drum rotation drive assembly. The distance between the rotation center of the winding drum and the center of the first hinge shaft is equal to the distance between the center of the first hinge shaft and the center of the hydraulic expansion shaft of the strip separating device. The PLC control system calculates the diameter of the strip on the winding drum using the linear velocity of the strip and the rotational speed of the winding drum of the strip winding mechanism. The linear velocity of the strip is measured by a speed sensor or encoder, and the rotational speed of the winding drum is measured by a speed encoder or speed sensor installed on the winding drum. Based on the obtained strip diameter, the system adjusts the swing angle of the strip separating device bracket in real time via a linear drive cylinder, so that the hydraulic expansion shaft on the strip separating device is always not in contact with the strip and can be separated by the separating plate unit.

[0012] Based on the relationship between linear speed and drum rotation speed, the roll diameter can be calculated in real time using the following formula.

[0013]

[0014] D is the current roll diameter, V is the linear velocity, N is the drum speed (RPM), and π is a constant 3.1416.

[0015] The angle between the first connecting axis between the center of the first hinge shaft and the central axis of the hydraulic expansion shaft and the second connecting axis between the center of the first hinge shaft and the center of the coil drum is θ.

[0016] θ= -1E-13D4 + 1E-09D3 - 2E-06D2 + 0.0256D + 1.769,

[0017] D is the diameter of the roll material, and E is a constant.

[0018] The first connecting axis and the hydraulic expansion shaft circles intersect at a single point. This point is the tangent point of the hydraulic expansion shaft, and it is the only intersection point of the first connecting axis on the circumference of the hydraulic expansion shaft.

[0019] The PLC control system adjusts the angle θ according to the roll diameter. The PLC control system includes a PLC controller, which is connected to an interactive screen, a rotary liquid supply assembly, and a claw drive mechanism.

[0020] High-precision measurement and sensing technology provides accurate data support for the PLC control system. The PLC control system calculates the diameter of the roll material on the winding drum by measuring the linear speed of the roll material and the rotational speed of the roll winding mechanism. This ensures precise control of the roll material diameter, thereby improving winding efficiency and roll material quality.

[0021] Furthermore, by flexibly adjusting the distance between the strip separator and the strip, it can be ensured that the strip is always separated by the separators during the winding process, preventing the strips from sticking together or being damaged. At the same time, the hydraulic expansion shaft does not come into contact with the roll, which protects the roll and ensures the separation effect.

[0022] In the aforementioned non-contact, non-destructive automatic rewinding machine for metal strips, the hydraulic expansion shaft includes an inner shaft and an outer shaft tube sleeved on the inner shaft. Both ends of the inner shaft and the outer shaft tube are fixed with journals. The outer diameter of the inner shaft is less than or equal to the inner diameter of the outer shaft tube. An annular expansion tube reservoir is provided between the inner shaft, the outer shaft tube, and the two journals, allowing the outer shaft tube to expand radially upon liquid entry. At least one end of the annular expansion tube reservoir is connected to a rotating liquid supply assembly. Through the sleeved design of the inner shaft and outer shaft tube, and the provision of the annular expansion tube reservoir, the hydraulic expansion shaft enables the outer shaft tube to expand radially upon liquid entry. The fixed journals at both ends of the inner shaft and outer shaft tube enhance the mechanical stability of the hydraulic expansion shaft.

[0023] In the aforementioned non-contact, non-damaging automatic rewinding machine for metal strip, the rotary liquid supply assembly includes a rotary liquid supply device disposed on the outer end of a journal. The journal has axially penetrating liquid channels at both ends. The outer end of a first liquid channel is connected to the rotary liquid supply device, and the inner end of the first liquid channel is connected to a first liquid channel on the inner shaft. The first liquid channel and a second liquid channel are coaxially arranged. The first liquid channel is connected to an annular expansion tube storage chamber via N radially distributed liquid distribution structures along the axial direction of the first liquid channel, where N ≥ 1. The radially distributed liquid distribution structures include M radially distributed liquid distribution channels along the circumference of the second liquid channel, where M ≥ 1. The inner end of each radially distributed liquid distribution channel is connected to the second liquid channel, and the outer end is connected to the annular expansion tube storage chamber. The coaxial arrangement of the first and second liquid channels ensures reduced fluid resistance during liquid supply. Furthermore, the second liquid channel's connection to the annular expansion tube storage chamber via the radially distributed liquid distribution structures improves expansion efficiency and the uniformity of expansion shaft pressure.

[0024] In the aforementioned non-contact, non-destructive automatic rewinding machine for metal strips, a plug is provided at the inner end of the journal. The outer wall of the plug is connected to the inner wall of the outer shaft tube, and several axially distributed sealing rings are provided between the plug and the outer shaft tube. A third liquid passage is axially inserted through the plug, and the first liquid passage is connected to the second liquid passage through the third liquid passage. The plug and the journal are integrated, and the journal is connected to the hydraulic expansion shaft frame through a bearing seat. The plug improves the pressure-bearing capacity of the hydraulic expansion shaft, which is equivalent to increasing the tensioning force of the hydraulic expansion shaft. This allows for a more stable fixation of the separating unit, ensuring structural stability during tensioning.

[0025] In the aforementioned non-contact, non-damaging automatic rewinding machine for metal strips, the separator unit includes a separator ring seat. At least two arc-shaped separators, distributed circumferentially and tightly abutting each other, are provided on the outer wall of the separator ring seat. All the arc-shaped separators together form a separator ring. The inner ends of the arc-shaped separators are embedded in the annular separator mounting groove of the separator ring seat and fixed by a detachable structure. This design makes the entire separator unit structurally more stable, and the arc-shaped separators can be easily disassembled when needed, facilitating the setting of the required number of separator units and their inspection or replacement.

[0026] In the aforementioned non-contact, non-damaging automatic rewinding machine for metal strip, the claw drive mechanism includes a slide rail mounted on a claw drive frame. A slide block is mounted on the slide rail, and a lead screw, capable of driving the slide block to move along the slide rail, passes through the slide block. One end of the lead screw is connected to a lead screw driver. An extension frame is mounted on the slide block, and a linear driver is mounted on the extension frame. The output end of the linear driver is connected to the claw. The combination of the slide rail and the slide block provides a stable and highly precise movement path for the claw. This design ensures the stability and accuracy of the claw during movement. The cooperation between the lead screw and the lead screw driver, through precise thread transmission, enables the precise movement of the slide block along the slide rail, thereby achieving precise control of the claw's movement.

[0027] This non-contact, damage-free automatic winding method for metal strip is characterized by the following steps:

[0028] S1. Install several strips that need to be separated onto the strip winding mechanism;

[0029] S2. Input the quantity and width of each strip into the PLC control system. The PLC control system controls the pawl drive mechanism of the strip separating device. The pawl moves several separating units to the correct position so that the several separating units can separate the corresponding quantity and width of strip.

[0030] S3. After the separator unit has moved, the PLC control system controls the rotating liquid supply assembly to inject liquid into the hydraulic expansion shaft for radial expansion, thereby completing the tensioning and positioning of the separator unit.

[0031] S4. Start the equipment to start winding. During this process, the PLC control system calculates the diameter of the roll material on the winding drum by using the linear speed of the roll material and the rotation speed of the roll drum of the strip winding mechanism. The linear speed of the roll material is measured by a speed sensor or encoder, and the rotation speed of the roll drum is measured by a speed encoder or speed sensor installed on the roll drum. Based on the obtained roll material diameter, the system adjusts the swing angle of the strip separator bracket in real time by a linear drive cylinder so that the hydraulic expansion shaft on the strip separator device is always not in contact with the strip material and can be separated by the separator unit.

[0032] Compared with existing technologies, the advantages of this non-contact, damage-free automatic winding method and automatic winding machine for metal strips are as follows: 1. Non-contact winding avoids damage to the strip surface, ensuring product quality. 2. The PLC control system can adjust the position and angle of the strip separator in real time, improving operational accuracy and efficiency. 3. The strip separator can automatically adjust according to the quantity and width of the strip, adapting to the needs of different strip specifications. 4. Precise separation is achieved using a hydraulic expansion shaft, ensuring effective spacing between strips. 5. The system calculates the roll diameter in real time through speed sensors and encoders, dynamically adjusting the working state to ensure a stable winding process. Attached Figure Description

[0033] Figure 1 This is a front view structural diagram provided by the present invention.

[0034] Figure 2 This is a top view structural diagram provided by the present invention.

[0035] Figure 3 This is a top-view perspective structural diagram provided by the present invention.

[0036] Figure 4 This is a cross-sectional structural diagram provided by the present invention.

[0037] Figure 5 This is a schematic diagram of the hydraulic expansion shaft structure provided by the present invention.

[0038] Figure 6 This invention provides Figure 5 Enlarged structural diagram at point A.

[0039] Figure 7 This is a schematic diagram of the separator unit structure provided by the present invention.

[0040] Figure 8 This is a schematic diagram of the claw structure provided by the present invention.

[0041] Figure 9 This is a top view schematic diagram of the pawl drive mechanism provided by the present invention.

[0042] Figure 10This is a schematic diagram of the pawl drive mechanism provided by the present invention.

[0043] Figure 11 This is a schematic diagram of the PLC control system circuit provided by the present invention.

[0044] In the figure, the components are: frame 1, hinge seat 11, first hinge shaft 12, strip winding mechanism 2, winding drum 21, winding drum rotation drive assembly 22, strip separator 3, strip separator bracket 31, hydraulic expansion shaft 32, inner shaft 321, outer shaft tube 322, journal 323, annular expansion tube reservoir 324, plug 325, sealing ring 326, separator unit 33, separator annular seat 331, arc-shaped separator 332, separator ring 333, annular separator mounting groove 334, detachable structure 335, hydraulic expansion shaft bracket 34, bearing seat 341, and claw drive mechanism. 35. Paw 351. Paw drive frame 352. Slide rail 353. Slide seat 354. Lead screw 355. Lead screw driver 356. Extension frame 357. Linear driver 358. Rotary liquid supply assembly 36. First liquid passage 361. Second liquid passage 362. Third liquid passage 363. Rotary liquid feeder 364. Radial liquid distribution structure 365. Radial liquid distribution channel 366. Swing drive mechanism 4. Linear drive cylinder 41. Cylinder hinge seat 42. PLC control system 5. PLC controller 51. Interactive screen 52. First connecting axis 61. Second connecting axis 62. Detailed Implementation

[0045] like Figures 1 to 11 As shown, this non-contact, non-damaging automatic metal strip winding machine includes a frame 1, a strip winding mechanism 2 on the frame 1, a strip separating device 3 on one side above the strip winding mechanism 2 for automatically arranging the spacing of the separator plates, and a support hinge seat 11 on the frame 1. The support hinge seat 11 is hinged to a strip separating device support 31 with hinge interfaces at both ends and in the middle via a first hinge shaft 12. The first hinge shaft 12 is located in the middle of the strip separating device support 31. A strip separating device 3 is located at one end of the strip separating device support 31, and a swing drive mechanism 4 is located at the other end, which can drive the strip separating device support 31 to rotate around the hinge point so that the hydraulic expansion shaft 32 of the strip separating device 3 approaches the strip but does not contact it and can be separated by the separator plate unit 33.

[0046] In this embodiment, the strip winding mechanism 2 is used to wind the strip. A strip separator 3 is located on the upper side, which can automatically set an appropriate dividing interval to ensure the stability of the strip during winding. In addition, a swing drive mechanism 4 is provided to keep the strip separator 3 in a suitable position at all times, so that the hydraulic expansion shaft 32 is close to the strip but does not contact it during strip winding, avoiding damage to the strip surface and ensuring product quality.

[0047] More specifically, the strip separating device 3 includes a hydraulic expansion shaft frame 34, which is fixedly connected to one end of the strip separating device bracket 31 near the strip separating device 3. The hydraulic expansion shaft frame 34 is provided with a hydraulic expansion shaft 32, and the hydraulic expansion shaft 32 is provided with a plurality of separating plate units 33. A pawl 351 is provided on one side of the hydraulic expansion shaft 32 for moving the separating plate units 33 along the axial direction of the hydraulic expansion shaft 32. The pawl 351 is connected to a pawl drive mechanism 35 that can drive the pawl 351 to move radially and axially along the hydraulic expansion shaft 32.

[0048] More specifically, the swing drive mechanism 4 includes a linear drive cylinder 41, the lower end of which is hinged to a cylinder hinge seat 42, the cylinder hinge seat 42 is fixed to one side of the frame 1, and the upper end is hinged to the end of the strip separating device bracket 31 near the swing drive mechanism 4. The PLC control system 5 is connected to the linear drive cylinder 41 to control the stroke of the linear drive cylinder 41.

[0049] More specifically, the strip winding mechanism 2 includes a winding drum 21, which is connected to a winding drum rotation drive assembly 22. The winding drum 21 is mounted on the winding drum rotation drive assembly 22 and is driven to rotate by the winding drum rotation drive assembly 22. The distance between the rotation center of the winding drum 21 and the center of the first hinge shaft 12 is equal to the distance between the center of the first hinge shaft 12 and the center of the hydraulic expansion shaft 32 of the strip separating device 3. The PLC control system 5 calculates the diameter of the roll material on the winding drum 21 by the linear velocity of the roll material and the rotational speed of the winding drum 21 of the strip winding mechanism 2. The linear velocity of the roll material is measured by a speed sensor or encoder, and the rotational speed of the winding drum 21 is measured by a speed encoder or speed sensor installed on the winding drum 21. Based on the obtained roll material diameter, the linear drive cylinder 41 is used to adjust the swing angle of the strip separating device bracket 31 in real time so that the hydraulic expansion shaft 32 on the strip separating device 3 is always close to the strip material but does not contact it and can be separated by the separating plate unit 33.

[0050] In this embodiment, the PLC control system 5 measures the linear speed of the roll material and the rotational speed of the take-up drum 21 of the strip take-up mechanism 2 using a speed sensor or encoder. Based on the following formula, it calculates the roll diameter of the material on the take-up drum 21 in real time. Since the basic dimensions of the remaining structures are fixed and known, obtaining the roll diameter is equivalent to obtaining the specific value that the swing drive mechanism 4 needs to adjust. The swing drive mechanism 4 can then push the strip separating device bracket 31 through the linear drive cylinder 41 to adjust the θ angle, ensuring that the hydraulic expansion shaft 32 is always close to the strip material but does not contact it, thereby avoiding wear on the strip material.

[0051]

[0052] D is the current roll diameter, V is the linear velocity, N is the drum rotation speed (RPM), and π is a constant 3.1416.

[0053] The first connecting axis 61 between the center of the first hinge shaft 12 and the central axis of the hydraulic expansion shaft 32 intersects the circumference of the hydraulic expansion shaft 32 at a point. This point is the tangent point of the hydraulic expansion shaft 32 and is the only intersection point of the first connecting axis 61 on the circumference of the hydraulic expansion shaft 32. The angle between the first connecting axis 61 and the second connecting axis 62 between the center of the first hinge shaft 12 and the center of the take-up drum 21 is θ.

[0054] θ= -1E-13D4 + 1E-09D3 - 2E-06D2 + 0.0256D + 1.769,

[0055] Where D is the diameter of the roll material and E is a constant, the specific values ​​are shown in the table below.

[0056]

[0057] The PLC control system 5 adjusts the angle θ according to the diameter of the roll material.

[0058] like Figure 5 As shown, the hydraulic expansion shaft 32 includes an inner shaft 321 and an outer shaft tube 322 sleeved on the inner shaft 321. The inner shaft 321 and the outer shaft tube 322 are fixed with journals 323 at both ends. The outer diameter of the inner shaft 321 is less than or equal to the inner diameter of the outer shaft tube 322. An annular expansion tube reservoir 324 is provided between the inner shaft 321, the outer shaft tube 322 and the two journals 323, which can cause the outer shaft tube 322 to expand radially when liquid enters. At least one end of the annular expansion tube reservoir 324 is connected to the rotating liquid supply assembly 36.

[0059] In this embodiment, the rotating liquid supply assembly 36 is responsible for introducing liquid into the annular expansion tube reservoir 324, thereby driving the expansion and contraction mechanism of the hydraulic expansion shaft 32. When the liquid fills the annular expansion tube reservoir 324, the chamber immediately drives the outer shaft tube 322 to expand outward, entering an expanded state. At this time, the overall diameter of the hydraulic expansion shaft 32 increases significantly. Conversely, when the liquid flows out of the annular expansion tube reservoir 324, the annular expansion tube reservoir 324 guides the outer shaft tube 322 to retract inward, exhibiting a contracted state. At this time, the overall diameter of the hydraulic expansion shaft 32 decreases accordingly.

[0060] More specifically, the rotary liquid supply assembly 36 includes a rotary liquid supply device 364 disposed on the outer end of the journal 323, and a PLC control system 5 is connected to the rotary liquid supply device 364 to control the start and stop of the rotary liquid supply device 364. The journal 323 is provided with a first liquid passage 361 axially penetrating both ends therethrough. The outer end of the first liquid passage 361 is connected to the rotary liquid supply device 364, and the inner end of the first liquid passage 361 is connected to a second liquid passage 362 of the inner shaft 321. The first liquid passage 361 and the second liquid passage 362 are coaxially arranged. The second liquid passage 362 is connected to the annular expansion tube storage cavity 324 through two radial liquid distribution structures 365 distributed axially upward along the second liquid passage 362. The radial liquid distribution structure 365 includes two radial liquid distribution channels 366 distributed circumferentially along the second liquid passage 362. The inner end of the radial liquid distribution channel 366 is connected to the second liquid passage 362, and the outer end is connected to the annular expansion tube storage cavity 324.

[0061] In this embodiment, the second liquid passage 362 is located at the center of the inner shaft 321, that is, the inner shaft 321 is a hollow shaft, and the radial liquid distribution channel 366 and the second liquid passage 362 are formed by pipelines.

[0062] More specifically, the inner end of the journal 323 is provided with a plug 325, the outer wall of the plug 325 is connected to the inner wall of the outer shaft tube 322, and three axially distributed annular sealing rings 326 are provided between the plug 325 and the outer shaft tube 322. The three sealing rings 326 are respectively set in the three sealing ring annular grooves on the plug 325. A third liquid passage 363 is axially provided on the plug 325. The first liquid passage 361 is connected to the second liquid passage 362 through the third liquid passage 363. The plug 325 and the journal 323 are integrated. The journal 323 is connected to the hydraulic expansion shaft bracket 34 through the bearing seat 341.

[0063] In this embodiment, the plug 325 and the annular sealing ring 326 disposed on the plug 325 together form a multi-seal structure, which provides excellent sealing effect and also enables the hydraulic expansion shaft 32 to provide greater tension force, thereby ensuring the stability of the separator unit 33 during tensioning.

[0064] like Figure 6 As shown, the separator unit 33 includes a separator ring seat 331. At least two semi-circular arc-shaped separators 332 are provided on the outer wall of the separator ring seat 331, which are distributed circumferentially and closely attached to each other. All the arc-shaped separators 332 are arranged to form a separator ring 333. The inner end of the arc-shaped separator 332 is embedded in the annular separator mounting groove 334 of the separator ring seat 331 and fixed by a detachable structure 335.

[0065] In this embodiment, to avoid accidental impacts, the thickness of the arc-shaped partition 332 gradually decreases from the outer end to the middle, and an arc-shaped chamfer is provided on the outer end of the arc-shaped partition 332. Furthermore, a detachable structure 335 is axially inserted into the partition ring seat 331 and the arc-shaped partition 332, and they are fixed by threaded countersunk bolts 336. To avoid interference that could lead to accidental scratches, both ends of these countersunk bolts 336 are kept on the same plane as the surface of the partition ring seat 331.

[0066] More specifically, the pawl drive mechanism 35 includes a slide rail 353 mounted on a pawl drive frame 352. The upper end of the pawl drive frame 352 is connected to the slide rail 353, and the lower end is fixedly connected to the side of the frame 1. A slide block 354 is mounted on the slide rail 353, and a lead screw 355 that can drive the slide block 354 to move along the slide rail 353 is mounted on the slide block 354. One end of the lead screw 355 is connected to a lead screw driver 356, and the PLC control system 5 is connected to the lead screw driver 356 to control the start and stop of the lead screw driver 356. An extension frame 357 is mounted on the slide block 354 and extends to one side from the slide block 354. A linear driver 358 is mounted on the bottom end of the extension frame 357. The pawl 351 is connected to the output end of the bottom of the linear driver 358, and the PLC control system 5 is connected to the linear driver 358 to control the extension and retraction of the output end of the linear driver 358.

[0067] In this embodiment, the pawl 351 includes a pawl base 3511, which is directly mounted on the output end of the linear driver 358. To ensure service life, reinforcing ribs are designed on the pawl 351 to enhance structural strength. In addition, the lower end of the pawl 351 is specially provided with a shaft clearance notch 3512, which allows the pawl 351 to penetrate deeper between the separator units 33, thereby increasing the contact area between the pawl 351 and the separator units 33, thus avoiding scratches and providing a smoother movement of the separator units 33.

[0068] This non-contact, damage-free automatic winding method for metal strip includes the following steps:

[0069] S1. Install several strips that need to be separated onto the strip winding mechanism 2;

[0070] S2. Input the quantity of strips and the width of each strip into the PLC control system 5. The PLC control system 5 controls the pawl drive mechanism 35 of the strip separating device 3. The pawl 351 moves several separating units 33 to the correct position so that the several separating units 33 can separate the corresponding quantity and width of strips.

[0071] S3. After the separator unit 33 has moved, the PLC control system 5 controls the rotating liquid supply assembly 36 to inject liquid into the hydraulic expansion shaft 32 for radial expansion, thereby completing the tensioning and positioning of the separator unit 33.

[0072] S4. Start the equipment to start winding. During this process, the PLC control system 5 calculates the diameter of the roll material on the winding drum 21 by using the linear speed of the roll material and the rotation speed of the winding drum 21 of the strip winding mechanism 2. The linear speed of the roll material is measured by a speed sensor or encoder, and the rotation speed of the winding drum 21 is measured by a speed encoder or speed sensor installed on the winding drum 21. Based on the obtained roll material diameter, the linear drive cylinder 41 is used to adjust the swing angle of the strip separating device bracket 31 in real time so that the hydraulic expansion shaft 32 on the strip separating device 3 is always close to the strip material but does not contact it and can be separated by the separating plate unit 33.

[0073] The working principle of this embodiment is as follows: First, the required interval size is input to the PLC control system 5 through the interactive screen 52. The PLC control system 5 controls the linear driver 358 of the pawl drive mechanism 35 to lift the pawl 351. Then, the lead screw driver 356 precisely controls the pawl 351 to move along the slide rail 353 to the space between the partition units 33 that need to be adjusted. At this time, the linear driver 358 drives the pawl 351 to go deeper into the space between the partition units 33. The linear driver 358 can then use the pawl 351 to push the partition unit 33 to the specified position of the expansion shaft 32 according to the specified data.

[0074] When the separator unit 33 is in the designated position, the PLC control system 5 controls the rotating liquid feeder 364 to deliver the liquid sequentially along the first liquid passage 361, the third liquid passage 363, the second liquid passage 362 and the radial liquid distribution channel 366 to the annular expansion tube storage chamber 324. At this time, the annular expansion tube storage chamber 324 drives the hydraulic expansion shaft 32 to expand. Since the separator unit 33 is a rigid body, the pressure between the two gradually increases until the separator unit 33 can be fixed.

[0075] At this time, the PLC control system 5 controls the swing drive mechanism 4 to swing the strip separator 3 to a suitable position. The take-up drum rotation drive assembly 22 drives the take-up drum 21 to rotate and start winding the strip. While winding, the PLC control system 5 continuously calculates the θ angle that the linear drive cylinder 41 needs to adjust in real time through the data measured by the speed sensor or encoder, so as to ensure that the hydraulic expansion shaft 32 is always close to the strip but does not contact it until the winding is completed.

[0076] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0077] Although this article uses a lot of terms such as frame, hinge seat, first hinge shaft, strip winding mechanism, winding drum, winding drum rotary drive assembly, strip separator, strip separator bracket, hydraulic expansion shaft, inner shaft, outer shaft tube, journal, annular expansion tube reservoir, plug, sealing ring, separator unit, separator annular seat, arc-shaped separator, separator ring, annular separator mounting groove, detachable structure, hydraulic expansion shaft bracket, bearing seat, pawl drive mechanism, pawl, pawl drive frame, slide rail, slide block, lead screw, lead screw driver, extension frame, linear driver, rotary liquid supply assembly, first liquid passage, second liquid passage, third liquid passage, rotary liquid supply device, radial liquid distribution structure, radial liquid distribution channel, swing drive mechanism, linear drive cylinder, cylinder hinge seat, PLC control system, PLC controller, interactive screen, first connecting axis, second connecting axis, etc., the possibility of using other terms cannot be excluded. The use of these terms is merely for the convenience of describing and explaining the essence of the invention, and interpreting them as any kind of additional limitation would be contrary to the spirit of the invention.

Claims

1. A non-contact metal strip non-damage automatic winding machine, comprising a frame (1), wherein a strip winding mechanism (2) is arranged on the frame (1), characterized in that, The strip separating device (3) on the upper side of the strip winding mechanism (2) can be used to automatically arrange the spacing between the separating pieces, the frame (1) is further provided with a support hinged seat (11), the support hinged seat (11) is hinged with a strip separating device support (31) through a first hinge shaft (12), a strip separating device (3) is arranged on one side of the strip separating device support (31), and the other side is provided with a swing driving mechanism (4) capable of driving the strip separating device support (31) to rotate around the hinge point so that the hydraulic expansion shaft (32) of the strip separating device (3) is not in contact with the strip and can be separated by the separating piece unit (33). The strip separating device (3) comprises a hydraulic expansion shaft support (34), the hydraulic expansion shaft support (34) is provided with a hydraulic expansion shaft (32), a plurality of separating piece units (33) are arranged on the hydraulic expansion shaft (32), a pawl (351) for driving the separating piece unit (33) to move along the hydraulic expansion shaft (32) in the axial direction is arranged on one side of the hydraulic expansion shaft (32), and the pawl (351) is connected with a pawl driving mechanism (35) capable of driving the pawl (351) to move in the radial direction and the axial direction of the hydraulic expansion shaft (32). The swing driving mechanism (4) comprises a linear drive cylinder (41), the lower end of the linear drive cylinder (41) is hinged on a cylinder hinged seat (42), the upper end is hinged on one end of the strip separating device support (31), the other end of the strip separating device support (31) is provided with the strip separating device (3), and the linear drive cylinder (41) is connected with a PLC control system (5). The strip winding mechanism (2) comprises a winding drum (21), the winding drum (21) is connected with a winding drum rotation driving assembly (22), the distance between the rotation center of the winding drum (21) and the center of the first hinge shaft (12) is equal to the distance between the center of the first hinge shaft (12) and the center of the hydraulic expansion shaft (32) of the strip separating device (3), the PLC control system (5) calculates the winding diameter of the winding material on the winding drum (21) through the linear speed of the winding material and the rotation speed of the winding drum (21) of the strip winding mechanism (2), the linear speed of the winding material is measured by a speed sensor or an encoder, the rotation speed of the winding drum (21) is measured by a rotation speed encoder or a rotation speed sensor installed on the winding drum (21), and the obtained winding diameter is used to adjust the angle of the swing of the strip separating device support (31) in real time through the linear drive cylinder (41) so that the hydraulic expansion shaft (32) of the strip separating device (3) is always not in contact with the strip and can be separated by the separating piece unit (33).

2. The non-contact metal strip non-damage automatic winding machine according to claim 1, wherein the hydraulic expansion shaft (32) comprises an inner shaft (321) and an outer shaft tube (322) sleeved on the inner shaft (321), the two ends of the inner shaft (321) and the outer shaft tube (322) are fixed with shaft necks (323), the outer diameter of the inner shaft (321) is less than or equal to the inner diameter of the outer shaft tube (322), a ring-shaped expansion tube liquid storage cavity (324) capable of making the outer shaft tube (322) radially expand when liquid enters is arranged between the inner shaft (321), the outer shaft tube (322) and the two shaft necks (323), and at least one end of the ring-shaped expansion tube liquid storage cavity (324) is connected with a rotating liquid supply assembly (36).

3. The non-contact metal strip no-damage automatic winder of claim 2, wherein, The rotating liquid supply assembly (36) comprises a rotating liquid supply device (364) arranged on the outer end of the shaft neck (323), the shaft neck (323) is provided with a first liquid passing channel (361) axially penetrating through the two ends thereof, the outer end of the first liquid passing channel (361) is connected with the rotating liquid supply device (364), the inner end of the first liquid passing channel (361) is connected with a second liquid passing channel (362) of the inner shaft (321), the first liquid passing channel (361) and the second liquid passing channel (362) are coaxially arranged, the second liquid passing channel (362) is communicated with the ring-shaped expansion tube liquid storage cavity (324) through N radial liquid distribution structures (365) distributed along the axial direction of the second liquid passing channel (362), and N≥1; the radial liquid distribution structure (365) comprises M radial liquid distribution channels (366) distributed along the circumferential direction of the second liquid passing channel (362), and M≥1, the inner end of the radial liquid distribution channel (366) is communicated with the second liquid passing channel (362), and the outer end thereof is communicated with the ring-shaped expansion tube liquid storage cavity (324).

4. The non-contact metal strip no-damage automatic winding machine according to claim 3, characterized in that, The inner end of the shaft neck (323) is provided with a plug (325), the outer wall of the plug (325) is connected with the inner wall of the outer shaft tube (322), a plurality of sealing rings (326) are arranged axially between the plug (325) and the outer shaft tube (322), the third liquid passing channel (363) is axially arranged on the plug (325), the first liquid passing channel (361) is communicated with the second liquid passing channel (362) through the third liquid passing channel (363), the plug (325) is integrated with the shaft neck (323), and the shaft neck (323) is connected with the hydraulic expansion shaft support (34) through a bearing seat (341).

5. The non-contact metal strip no-damage automatic winding machine according to any one of claims 1-4, characterized in that, The separation sheet unit (33) comprises a separation sheet annular seat (331), the outer wall of the separation sheet annular seat (331) is provided with at least two arc-shaped separation sheets (332) distributed along the circumferential direction and closely adhered to each other in the circumferential direction, all the arc-shaped separation sheets (332) are combined to form a separation sheet ring (333), and the inner end of the arc-shaped separation sheet (332) is embedded in the annular separation sheet mounting groove (334) of the separation sheet annular seat (331) and is fixed through a detachable structure (335).

6. The non-contact metal strip no-damage automatic winder of claim 1, wherein, The pawl driving mechanism (35) comprises a slide rail (353) arranged on a pawl driving frame (352), a slide base (354) arranged on the slide rail (353), a lead screw (355) arranged through the slide base (354) and capable of driving the slide base (354) to move along the slide rail (353), and a screw driver (356) connected to one end of the lead screw (355); the slide base (354) is provided with an extension frame (357), the extension frame (357) is provided with a linear driver (358), and the linear driver (358) is connected to the pawl (351) at the output end.

7. A non-contact metal strip injury-free automatic winding method of a non-contact metal strip injury-free automatic winding machine according to any one of claims 2 to 4, characterized in that, The method comprises the following steps: S1, a plurality of strip materials to be separated are installed on the strip winding mechanism (2); S2, the number of strip materials and the width of each strip material are input into the PLC control system (5), the pawl driving mechanism (35) of the strip separating device (3) is controlled through the PLC control system (5), the plurality of separating piece units (33) are moved to the correct position through the pawl (351), and the plurality of separating piece units (33) can separate the corresponding number and width of strip materials; S3, after the separating piece units (33) are moved, the PLC control system (5) controls the rotary liquid supply assembly (36) to inject liquid for radial expansion of the hydraulic expansion shaft (32), so that the tension positioning of the separating piece units (33) is completed; S4, the equipment is started to wind, during which the PLC control system (5) calculates the winding diameter of the winding material on the winding drum (21) of the strip winding mechanism (2) through the linear speed of the winding material and the rotating speed of the winding drum (21), the linear speed of the winding material is measured by a speed sensor or an encoder, the rotating speed of the winding drum (21) is measured by a rotating speed encoder or a rotating speed sensor installed on the winding drum (21), and the obtained winding diameter is used to adjust the angle of the swing of the strip separating device support (31) in real time through the linear drive cylinder (41), so that the hydraulic expansion shaft (32) on the strip separating device (3) is always not in contact with the strip material and can be separated by the separating piece units (33).

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