A kind of non-crystalline strip material cutting equipment

Abstract

The utility model relates to a kind of cutting equipment of amorphous strip, belong to amorphous strip processing equipment technical field.The utility model is formed complete cutting equipment for amorphous strip by setting unwinding material device, length counting station, process deviation rectification station, cutting device, tension adjusting station and winding material device, not only can execute a series of cutting procedures such as material discharge, length counting, process deviation rectification, cutting, tension adjustment, winding, but also can effectively control the gap size between roll material and mould in the whole process, simultaneously still can adjust the winding movement of roll material, prevent the emergence of the phenomenon of running.

Description

Technical Field

[0001] This utility model relates to a cutting device for amorphous ribbon, belonging to the technical field of amorphous ribbon processing equipment. Background Technology

[0002] In the field of amorphous ribbon processing, the strip cutter, as the core equipment for strip cutting and forming, directly determines the precision and quality of the final product through the stability of its winding and unwinding processes. Currently, mainstream amorphous ribbon cutters in the industry generally face the technical challenge of uneven tension and tension fluctuations during the dynamic process of strip winding and unwinding. Due to the inherent physical characteristics of amorphous ribbon, such as thinness, room temperature brittleness, easy tearing, high strength, high hardness, high elastic limit, and resistance to deformation, an imbalance in tension control during winding and unwinding can easily lead to wrinkles, tensile deformation, or even breakage of the ribbon, severely affecting the accuracy of subsequent cutting processes. From the perspective of equipment structure, the existing winding and unwinding devices of cutting machines both adopt ordinary rigid roller designs. These rollers only have basic transmission and support functions and lack targeted adaptive adjustment capabilities. In actual operation, dynamic changes in winding speed (such as speed fluctuations during startup acceleration and shutdown deceleration) and real-time increases (at the winding end) or decreases (at the unwinding end) in strip diameter will directly disrupt the stable contact state between the roller and the strip. On the one hand, this can easily cause the strip to bounce, resulting in irregular displacement of the strip on the roller surface and causing the cutting reference to shift. On the other hand, it can cause uneven clearance between the strip and the roller. When the clearance is too large, the strip is prone to loosening and deviation. When the clearance is too small, it will cause excessive compression of the strip, further aggravating tension fluctuations, ultimately forming a vicious cycle of "uneven winding and unstable unwinding". More critically, existing conventional rollers lack the ability to automatically adjust the clearance between the roller and the strip. Throughout the winding and unwinding process, the relative position of the roller and the strip remains fixed, making it impossible to adjust the roller position in real time according to changes in the strip diameter and tension fluctuations. For example, if the strip diameter increases during the later stages of winding, and the roller cannot simultaneously adjust outwards, the clearance between the strip and the roller will decrease, increasing the compressive force and causing strip deformation. Conversely, if the strip diameter decreases during the later stages of unwinding, and the roller cannot adjust inwards, the strip will loosen, tension will drop sharply, and the strip will pile up. This fixed clearance design severely restricts the stability of the winding and unwinding process, not only reducing the quality of the amorphous strip output but also requiring frequent manual intervention, increasing production efficiency losses and operating costs. Utility Model Content

[0003] To solve the above problems, this utility model provides a cutting equipment for amorphous ribbon, including an unwinding device, a length counting station, a process correction station, a cutting device, a tension adjustment station, and a winding device installed on the frame and connected in sequence. The unwinding device is equipped with an expansion and contraction mechanism, and the winding device is equipped with an adjustment and stabilization mechanism. The length counting station includes a length counting rubber roller mounted on the frame; The process correction station includes a process correction component mounted on the machine frame; The cutting device includes a blade holder and a lower blade holder and an upper blade holder track fixed to the bottom and top of the blade holder, respectively. The lower blade holder is equipped with a lower blade. The upper blade holder track is movably connected to a lifting component via an upper blade holder slider. An upper blade is installed on the lifting component. A cutting platform is also fixed between the upper and lower blades on the blade holder. The cutting platform has a gap corresponding to the position of the upper and lower blades. The tension adjustment station includes multiple tensioning rollers fixed to the frame and a rotating roller hinged to the frame.

[0004] Furthermore, the end of the rotating rubber roller is connected to one end of the rotating arm, and the other end of the rotating arm is connected to the tension adjusting motor on the frame. The tension adjusting motor drives the rotating arm to rotate the rotating rubber roller, thereby changing the tension of the material belt.

[0005] Furthermore, the expansion and contraction mechanism includes: The roll drive unit includes an unwinding / rewinding power source and a tensioning power source fixed to the frame; The shaft assembly includes an inner shaft connected to the unwinding and rewinding power source at its rear end and a main shaft sleeved outside the inner shaft. The inner shaft and the main shaft are fitted together by bearings with a gap, and the inner shaft can extend and retract relative to the main shaft. A chuck, fitted to the non-end portion outside the spindle; The inner liner is fitted to the part of the spindle that extends out of the chuck. The outer periphery of the inner liner is provided with multiple strip-shaped pieces. The front end of the inner liner is connected to the front end of the inner shaft through a sliding cover plate. The wing plate is movably connected to the outer periphery of the chuck, and has an inclined wing groove on its inner side, which movably engages with the strip member. When the inner shaft moves in extension and retraction relative to the main shaft, it will drive the inner liner to move along the wing groove of the wing plate, thereby causing the wing plate to contract or expand relative to the axis of the main shaft. Furthermore, the wing groove is a dovetail groove that slopes from back to front and from inside to outside. When the inner shaft drives the inner liner to move forward, the wing plate retracts relative to the main shaft axis; when the inner shaft drives the inner liner to move backward, the wing plate expands relative to the main shaft axis.

[0006] Furthermore, the front and rear ends of the wing plate are respectively equipped with a front baffle and a rear baffle. The front baffle is a double-leaf vertical plate structure, and the rear baffle is a four-leaf cross-shaped plate structure. The tendency of the coil to run during the unwinding process due to radial runout and other factors is restricted by the front and rear baffles.

[0007] Furthermore, the shaft assembly between the chuck and the coil drive group is mounted on the expansion bracket. The expansion bracket includes an expansion stand fixed to the frame and a sleeve installed on the top of the expansion stand. The sleeve is fitted with the main shaft through a bearing, and bearing caps are provided at both ends of the sleeve. The expansion bracket is connected to the expansion slide rail through the expansion slide plate, and the expansion slide rail is fixed to the frame.

[0008] Furthermore, the stabilization mechanism includes a frame, a take-up reel mounted on the frame, and a stabilization assembly fixed to the frame, the stabilization assembly including: A walking module, fixed to the frame, includes an X-axis linear module. The X-axis linear module includes a module motor fixed to the top of the frame and a fixing block. The fixing block engages with a movable X-axis guide rail, which is connected to an adjustment bracket. A rack is provided at the bottom of the X-axis guide rail, and the module motor is connected to a module gear. The module gear meshes with the rack, and the X-axis guide rail moves by rotating the module gear. The adjustment bracket includes a slotted seat connecting to the X-axis guide rail and a lug connecting to one side of the slotted seat. An adjustment cylinder is fixed inside the slotted seat, and the rotating shaft is hinged to a bearing seat on the lug in a through-type manner. A stabilizing bracket is connected to the linear motion module, and a stabilizing cylinder is fixed on the stabilizing bracket. The balance plate is hinged to the adjustment bracket via a rotating shaft at its middle part; the balance plate forms a lever with the rotating shaft as the fulcrum, one end of which is connected to the output end of the adjustment cylinder, and the other end is connected to the adjustment tray. Driven by the walking module, the stabilizing tray can move to a position below the coil on the take-up reel, and under the drive of the stabilizing cylinder, it can lift the coil to adjust the distance between the inner periphery of the coil and the center of the take-up reel.

[0009] Furthermore, the output shaft of the adjusting cylinder is hinged to the tilting block, and the tilting block is connected to one end of the balance plate. When the adjusting cylinder pushes downward, the tilting block rotates clockwise around the hinge point and tilts the balance plate, causing the end of the balance plate connected to the adjusting tray to tilt. When the adjusting cylinder retracts upward, the tilting block rotates counterclockwise around the hinge point and tilts the balance plate, causing the end of the balance plate connected to the tilting block to tilt. The stabilizing tray includes a base plate connected to the balance plate and two symmetrical side plates disposed on both sides of the base plate. The base plate and the two side plates can form an arc-shaped plate structure with a cross-section of approximately circular arc.

[0010] Furthermore, when the balance plate is in a balanced state, the arc formed by the stabilizing tray and the winding reel are in a concentric position.

[0011] Furthermore, vertical baffles are provided on the front and rear sides of the base plate to limit the displacement of the coil in the Y-axis direction.

[0012] The beneficial effects of this utility model are: This utility model forms a complete cutting equipment for amorphous ribbon by setting up an unwinding device, a length counting station, a process correction station, a cutting device, a tension adjustment station, and a winding device. It can not only perform a series of cutting processes such as unwinding, length counting, process correction, cutting, tension adjustment, and winding, but also effectively control the gap between the coil and the mold throughout the process. At the same time, it can stabilize the winding movement of the coil and prevent slippage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present invention; Figure 2 This is a schematic diagram of the cutting device in one embodiment of the present invention; Figure 3 This is a front view of the overall structure of the unwinding device in one embodiment of the present invention; Figure 4 This is a rear view of the overall structure of the unwinding device in one embodiment of the present invention; Figure 5 This is a half-sectional view showing the fit of the shaft assembly, chuck, liner, and wing plate in one embodiment of the present invention. Figure 6 This is a schematic diagram of the overall structure of the winding device in one embodiment of the present invention; Figure 7 This is a schematic diagram of the stabilization component in one embodiment of the present invention.

[0014] In the diagram: 1. Frame; 2. Unwinding device; 3. Length counting station; 4. Process correction station; 5. Cutting device; 6. Tension adjustment station; 7. Rewinding device; 21. Unwinding / rewinding power source; 22. Expansion power source; 23. Inner shaft; 24. Main shaft; 25. Chuck; 26. Wing plate; 27. Sliding cover plate; 28. Expansion bracket; 29. ​​Liner; 211. Unwinding / rewinding servo motor; 212. Driven pulley; 221. Expansion cylinder; 222. Top plate; 231. Strip component; 261. Front baffle; 262. Rear baffle; 28 1. Expansion slide rail; 51. Cutting platform; 52. Lower blade holder; 53. Blade holder; 54. Upper blade holder rail; 55. Upper blade holder slider; 56. Lifting assembly; 72. Rewind reel; 73. X-axis linear module; 74. Stabilizing bracket; 75. Balance plate; 76. Stabilizing tray; 77. Stabilizing cylinder; 78. Tilting block; 731. Module motor; 732. Fixing block; 733. X-axis guide rail; 734. Module gear; 735. Rack; 741. Slotted seat; 742. Hanging lug; 743. Rotating shaft; 761. Vertical baffle. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] This utility model provides a cutting equipment for amorphous ribbon, including an unwinding device 2, a length counting station 3, a process correction station 4, a cutting device 5, a tension adjustment station 6, and a winding device 7, which are installed on the frame 1 and connected in sequence.

[0019] The unwinding device 2 is equipped with an expansion and contraction mechanism, and the winding device 7 is equipped with an adjustment and stabilization mechanism; the length counting station 3 includes a length counting rubber roller installed on the frame 1; the process correction station 4 includes a process correction component installed on the frame 1.

[0020] exist Figure 2 In the example, the cutting device 5 includes a blade holder 53 and a lower blade holder 52 and an upper blade holder track 54, which are respectively fixed to the bottom and top of the blade holder 53. The lower blade holder 52 is equipped with a lower blade. The upper blade holder track 54 is movably connected to a lifting assembly 56 via an upper blade holder slider 55. An upper blade is installed on the lifting assembly 56. A cutting platform 51 is also fixed between the upper and lower blades on the blade holder 53. The cutting platform 51 has a gap corresponding to the position of the upper and lower blades.

[0021] The tension adjustment station 6 includes multiple tensioning rollers fixed to the frame 1 and a rotating roller hinged to the frame 1. The tensioning rollers are lightweight aluminum alloy rollers; the rotating roller is also a lightweight aluminum alloy roller. The tension adjustment motor drives the rotating arm to swing, ensuring the strip is always under tension, thus guaranteeing stable strip tension. The strip tension is adjusted by the output torque of the tension adjustment motor.

[0022] Furthermore, the end of the rotating rubber roller is connected to one end of the rotating arm, and the other end of the rotating arm is connected to the tension adjusting motor on the frame 1. The tension adjusting motor drives the rotating arm to rotate the rotating rubber roller, thereby changing the tension of the material belt.

[0023] Example 1 In some embodiments, the roll drive assembly includes a winding and unwinding power source 21 and a stretching power source 22 fixed to the frame 1, as shown in FIG4. These two power sources can be arranged vertically on the frame 1 at the rear without interfering with each other.

[0024] In the example of Figure 4, the unwinding and rewinding power source 21 includes an unwinding and rewinding servo motor 211 fixed to the frame 1. The output end of the unwinding and rewinding servo motor 211 is connected to the drive pulley. The main shaft 24 is fitted to the driven pulley 212 through a bushing. The drive pulley is connected to the driven pulley 212 through a synchronous belt and drives the transmission. The unwinding and rewinding servo motor 211 drives the drive pulley and the driven pulley 212 in sequence, thereby driving the main shaft 24 to rotate together with the inner liner 29 and the wing plate 26.

[0025] In the example of Figure 4, the expansion power source 22 includes at least one expansion cylinder 221 fixed to the frame 1. The output end of the expansion cylinder 221 is connected to the top plate 222. The top plate 222 is connected to the rear end of the inner shaft 23. The expansion cylinder 221 drives the top plate 222 to push or pull the inner shaft 23.

[0026] In some embodiments, components such as the expansion cylinder 221 and the top plate 222 are mounted on a fixed frame above the take-up and unwind servo motor 211, and the driven wheel 212 is located above the driving wheel near the expansion bracket 28, so that it will not interfere with other components.

[0027] In the examples shown in Figures 3 and 5, the shaft assembly includes an inner shaft 23 connected to the unwinding / rewinding power source 21 at its rear end and a main shaft 24 sleeved outside the inner shaft 23. The inner shaft 23 and the main shaft 24 are fitted together by bearings with a clearance, allowing the inner shaft 23 to extend and retract relative to the main shaft 24. The chuck 25 is fitted to the non-end portion outside the main shaft 24, i.e., between the inner liner 29 and the expansion bracket 28. The inner liner 29 is fitted to the portion of the main shaft 24 that extends out of the chuck 25. The outer periphery of the inner liner 29 is provided with multiple strip-shaped members 231, and the inner liner 29 is connected to the front end of the inner shaft 23. The wing plate 26 is movably connected to the outer periphery of the chuck 25, and its inner side has an inclined wing groove that movably engages with the strip-shaped members 231 through the wing groove. Through the linear bearings, the inner shaft 23 can extend and retract relative to the main shaft 24.

[0028] In some embodiments, when the inner shaft 23 extends or retracts relative to the main shaft 24, it causes the inner liner 29 to move along the wing groove of the wing plate 26, thereby causing the wing plate 26 to contract or expand relative to the axis of the main shaft 24. Specifically, in the example of Figure 5, when the inner liner 29 moves to the right (backward) relative to the wing plate 26, the wing plate 26 expands outward due to the tilt of the wing groove, thus forming an expansion action. When the inner liner 29 moves to the left (forward) relative to the wing plate 26, the wing plate 26 retracts inward due to the tilt of the wing groove, thus forming a contraction action.

[0029] In the example of Figure 5, the wing groove is a dovetail groove that slopes from back to front and from inside to outside. When the inner shaft 23 drives the inner liner 29 forward, the wing plate 26 retracts relative to the axis of the main shaft 24; when the inner shaft 23 drives the inner liner 29 backward, the wing plate 26 expands relative to the axis of the main shaft 24. In the example of Figure 5, the front end of the inner liner 29 is connected to the front end of the inner shaft 23 via a sliding cover plate 27, limiting the travel of the inner shaft 23 and the main shaft 24 relative to the inner liner 29. In some embodiments, the front and rear ends of the wing plate 26 are respectively equipped with a front baffle 261 and a rear baffle 262, which limit the tendency of the coil to run away due to radial runout and other factors during unwinding. In the example of Figure 3, the front baffle 261 is a double-leaf vertical plate structure, and the rear baffle 262 is a four-leaf cross-shaped plate structure. When the coil is wound onto the wing plate 26, it is limited by the front baffle 261 and the rear baffle 262. In some embodiments, the shaft assembly between the chuck 25 and the coil drive assembly is mounted on the expansion bracket 28.

[0030] In some embodiments, the expansion bracket 28 includes an expansion stand fixed to the frame 1 and a sleeve installed on the top of the expansion stand. The sleeve is fitted with a main shaft 24 through a bearing. Bearing caps are provided at both ends of the sleeve to prevent the sleeve from detaching.

[0031] In some embodiments, the expansion bracket 28 can be connected to the expansion slide rail 281 via an expansion slide plate, and the expansion slide rail 281 is fixed to the frame 1, so that the position of the expansion bracket 28 can be modified.

[0032] Example 2 This utility model provides a stabilizing mechanism for preventing die jumping during winding, including a frame 71 and a winding reel 72 mounted on the frame 71.

[0033] In the example in Figure 6, the rack 71 can be divided into two identical layers, each with a fixed take-up reel 72.

[0034] In some embodiments, the take-up reel 72 is an I-beam reel with its back connected to a take-up motor fixed to the frame 71, and the take-up motor provides the power source to control the rotation of the take-up reel 72.

[0035] Normally, the amorphous ribbon undergoes shearing, tensioning, and other operations in the front-end process. After completing these processes, it is collected by the take-up reel 72, winding it round by round onto the central axis of the take-up reel 72. Because the shape of the ribbon is unstable during the winding process, the gap between the inner coil of the ribbon and the central axis of the take-up reel is disrupted during the high-speed rotation of the take-up reel 72. When the take-up reel 72 rotates the ribbon, the loss of stable radial support causes inconsistent distances from various points on the inner circumference of the ribbon to the central axis, resulting in uneven gaps and causing the ribbon to float irregularly up and down around the central axis. To address this, we provide a stabilization component to adjust the uniformity of the gap between the ribbon and the central axis.

[0036] In some embodiments, the stabilization component is fixed to the stabilization component of the frame 71, and the stabilization component includes a walking module, a stabilization bracket 74, a balance plate 75, and a stabilization tray 76, etc.

[0037] exist Figure 7 In the example, the walking module is fixed to the frame 71. The walking module includes a linear motion module, which includes an X-axis linear module 73. The X-axis linear module 73 includes a module motor 731 fixed to the top of the frame 71 and a fixing block 732. The fixing block 732 is fitted with a movable X-axis guide rail 733 below. The X-axis guide rail 733 can move freely in a linear direction in the X-axis direction. A support plate is provided below the X-axis guide rail 733, and the bottom of the support plate is connected to an adjustment bracket 74.

[0038] exist Figure 7In the example, the stabilizing bracket 74 includes a slotted seat 741 connected to the X-axis guide rail 733 and a hanging lug 742 connected to one side of the slotted seat 741. A stabilizing cylinder 77 is fixed inside the slotted seat 741, with the output end of the stabilizing cylinder 77 facing downwards. The rotating shaft 743 is hinged through to a bearing seat on the hanging lug 742. The middle part of the balance plate 75 is hinged to the stabilizing bracket 74 via the rotating shaft 743. The balance plate 75 forms a lever with the rotating shaft 743 as a fulcrum, with one end connected to the output end of the stabilizing cylinder 77 and the other end connected to the stabilizing tray 76. Thus, the balance plate 75 can tilt to the left or right with the rotating shaft 743 as a fulcrum to form a lever; when its left side tilts up, it will slightly lift the stabilizing tray 76.

[0039] In some embodiments, the output shaft of the adjusting cylinder 77 is hinged to the flipping block 78, the flipping block 78 is connected to the right end of the balance plate 75, and the adjusting tray 76 is fixed to the left end of the balance plate 75; when the adjusting cylinder 77 outputs downward, the flipping block 78 rotates clockwise around the hinge point and causes the balance plate 75 to tilt, thereby tilting the end of the balance plate 75 connected to the adjusting tray 76, slightly raising the adjusting tray 76.

[0040] In some embodiments, when the adjusting cylinder 77 retracts upward, the flipping block 78 rotates counterclockwise around the hinge point and causes the balance plate 75 to tilt, thereby causing the end of the balance plate 75 connected to the flipping block 78 to tilt up.

[0041] In some embodiments, driven by the walking module, the adjusting tray 76 can move to a position below the coil on the take-up reel 72, and driven by the adjusting cylinder 77, it can lift the coil to adjust the distance between the inner periphery of the coil and the center of the take-up reel 72.

[0042] In the example shown in Figure 7, a rack 735 is provided at the bottom of the X-axis guide rail 733, and a module gear 734 is connected to the module motor 731. The module gear 734 meshes with the rack 735, and the X-axis guide rail 733 is moved by driving the module gear 734 to rotate and the meshing action of the rack 735.

[0043] In the example of Figure 2, the stabilizing tray 76 includes a base plate connected to the balance plate 75 and two symmetrical side plates disposed on both sides of the base plate. The base plate and the two side plates can form an arc-shaped plate structure with an approximately circular arc cross-section. This structural design can better support the roll material, better adapt to the outer contour of the roll material, and the two side plates can provide a certain blocking effect to prevent the roll material from falling off.

[0044] In some embodiments, when the balance plate 75 is in a balanced state, the arc formed by the stabilizing tray 76 is concentric with the take-up reel 72, thereby ensuring that when the stabilizing tray receives the roll material at this position, it can accurately calibrate the uniform gap between the inner circle of the roll material and the central axis.

[0045] In the example shown in Figure 7, vertical baffles 761 are respectively provided on the front and rear sides of the base plate to limit the displacement of the rolled material in the Y-axis direction. In some embodiments, the winding reel 72 is an I-beam reel, which facilitates winding and rewinding.

[0046] In some embodiments, the take-up reel 72 can be movably fitted onto the take-up reel track of the frame 71, the take-up reel track being arranged along the Y-axis direction to facilitate fine adjustment of the take-up reel 72 in the Y-axis direction according to the take-up speed.

[0047] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A cutting device for amorphous ribbon, characterized in that, It includes a unwinding device, a length counting station, a process correction station, a cutting device, a tension adjustment station, and a winding device, all installed on the frame and connected in sequence. The unwinding device is equipped with an expansion and contraction mechanism, and the winding device is equipped with an adjustment and stabilization mechanism. The length counting station includes a length counting rubber roller mounted on the frame; The process correction station includes a process correction component mounted on the machine frame; The cutting device includes a blade holder and a lower blade holder and an upper blade holder track fixed to the bottom and top of the blade holder, respectively. The lower blade holder is equipped with a lower blade. The upper blade holder track is movably connected to a lifting component via an upper blade holder slider. An upper blade is installed on the lifting component. A cutting platform is also fixed between the upper and lower blades on the blade holder. The cutting platform has a gap corresponding to the position of the upper and lower blades. The tension adjustment station includes multiple tensioning rollers fixed to the frame and a rotating roller hinged to the frame.

2. The cutting equipment according to claim 1, characterized in that, The end of the rotating rubber roller is connected to one end of the rotating arm, and the other end of the rotating arm is connected to the tension adjusting motor on the frame. The tension adjusting motor drives the rotating arm to swing, ensuring that the strip is always in a taut state, thereby ensuring the stability of the strip tension; the output torque of the tension adjusting motor adjusts the strip tension.

3. The cutting equipment according to claim 1, characterized in that, The expansion and contraction mechanism includes: The roll drive unit includes an unwinding / rewinding power source and a tensioning power source fixed to the frame; The shaft assembly includes an inner shaft connected to the unwinding and rewinding power source at its rear end and a main shaft sleeved outside the inner shaft. The inner shaft and the main shaft are connected by a linear bearing, and the inner shaft can perform telescopic movement relative to the main shaft. A chuck, fitted to the non-end portion outside the spindle; The inner liner is fitted to the part of the spindle that extends out of the chuck. The outer periphery of the inner liner is provided with multiple strip-shaped pieces. The front end of the inner liner is connected to the front end of the inner shaft through a sliding cover plate. The wing plate is movably connected to the outer periphery of the chuck, and has an inclined wing groove on its inner side, which movably engages with the strip member. When the inner shaft extends or retracts relative to the main shaft, it will cause the inner liner to move along the wing groove of the wing plate, thereby causing the wing plate to contract or expand relative to the axis of the main shaft.

4. The cutting equipment according to claim 3, characterized in that, The wing groove is a dovetail groove that slopes from back to front and from inside to outside. When the inner shaft drives the inner lining to move forward, the wing plate retracts relative to the main shaft axis; when the inner shaft drives the inner lining to move backward, the wing plate expands relative to the main shaft axis.

5. A cutting device according to claim 3, characterized in that, The front and rear ends of the wing plate are respectively equipped with a front baffle and a rear baffle. The front baffle is a double-leaf vertical plate structure, and the rear baffle is a four-leaf cross-shaped plate structure. The tendency of the coil to run during the unwinding process due to radial runout is restricted by the front and rear baffles.

6. A cutting device according to claim 3, characterized in that, The shaft assembly between the chuck and the coil drive unit is mounted on the expansion bracket. The expansion bracket includes an expansion stand fixed to the frame and a sleeve installed on the top of the expansion stand. The sleeve is fitted with the main shaft through a bearing, and bearing caps are provided at both ends of the sleeve. The expansion bracket is connected to the expansion slide rail through the expansion slide plate, and the expansion slide rail is fixed to the frame.

7. The cutting equipment according to claim 1, characterized in that, The stabilization mechanism includes a frame, a take-up reel mounted on the frame, and a stabilization assembly fixed to the frame. The stabilization assembly includes: A walking module, fixed to the frame, includes an X-axis linear module. The X-axis linear module includes a module motor fixed to the top of the frame and a fixing block. The fixing block is engaged with a movable X-axis guide rail, which is connected to an adjustment bracket. A rack is provided at the bottom of the X-axis guide rail, and the module motor is connected to a module gear. The module gear meshes with the rack, and the X-axis guide rail is moved by driving the module gear to rotate. The adjustment bracket includes a slotted seat connected to the X-axis guide rail and a lug connected to one side of the slotted seat. An adjustment cylinder is fixed inside the slotted seat, and the rotating shaft is hinged to a bearing seat on the lug in a through-type manner. A stabilizing bracket is connected to a linear motion module, and a stabilizing cylinder is fixed on the stabilizing bracket. The balance plate is hinged to the adjustment bracket via a rotating shaft at its middle part; the balance plate forms a lever with the rotating shaft as the fulcrum, one end of which is connected to the output end of the adjustment cylinder, and the other end is connected to the adjustment tray. Driven by the walking module, the stabilizing tray can move to a position below the coil on the take-up reel, and under the drive of the stabilizing cylinder, it can lift the coil to adjust the distance between the inner periphery of the coil and the center of the take-up reel.

8. A cutting device according to claim 7, characterized in that, The output shaft of the adjusting cylinder is hinged to the tilting block, and the tilting block is connected to one end of the balance plate. When the adjusting cylinder pushes downward, the tilting block rotates clockwise around the hinge point and tilts the balance plate, causing the end of the balance plate connected to the adjusting tray to tilt. When the adjusting cylinder retracts upward, the tilting block rotates counterclockwise around the hinge point and tilts the balance plate, causing the end of the balance plate connected to the tilting block to tilt. The stabilizing tray includes a base plate connected to the balance plate and two symmetrical side plates disposed on both sides of the base plate. The base plate and the two side plates can form an arc-shaped plate structure with a cross-section of approximately circular arc.

9. A cutting device according to claim 8, characterized in that, When the balance plate is in a balanced state, the arc formed by the stabilizing tray is concentric with the winding reel.

10. A cutting device according to claim 8, characterized in that, Vertical baffles are provided on the front and rear sides of the base plate to limit the displacement of the coil material in the Y-axis direction.

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