Steel coil uncoiling and cutting device integrated with automatic centering mechanism

Abstract

The invention provides a steel coil uncoiling and cutting device integrated with an automatic centering mechanism. The steel coil uncoiling and cutting device comprises an uncoiling mechanism and a guide frame arranged on one side of the uncoiling mechanism, and the automatic centering mechanism is arranged on the guide frame; a supporting frame is arranged on one side of the guide frame, a guide rail is installed on the supporting frame, and a cutting mechanism is arranged on the guide rail and comprises a driving seat, a cutting mechanism and a cutting mechanism; the mounting frame is mounted on the driving seat; the cutting blade is arranged on the mounting frame in a sliding manner; the driving mechanism is mounted on the supporting frame and is in transmission connection with the supporting shaft of the cutting blade; the lifting driving piece is installed on the supporting frame, and a supporting sliding table is arranged on a movable rod of the lifting driving piece; the side pushing driving part is connected with the driving mechanism; the fixing frame is arranged on the supporting sliding table, and a supporting shaft of the cutting blade and the driving mechanism are connected with the fixing frame; a downward pressing driving part and a cutting table are arranged on the supporting frame, and a cutter is arranged on a movable rod of the downward pressing driving part; the device can correct the transverse deviation of the steel belt after uncoiling, and the cutting requirements of different steel belts can be met.

Description

Technical Field

[0001] This invention belongs to the field of cutting device technology, and more specifically, relates to a steel coil uncoiling and cutting device with an integrated automatic centering mechanism. Background Technology

[0002] In the steel coil processing and production process, the steel strip must first be released by an uncoiling mechanism, and then cut by a cutting device to the specified width specifications suitable for subsequent processes. After uncoiling, the steel strip is prone to lateral displacement due to factors such as residual rolling stress and conveying path deviation. This displacement problem is amplified further as the width is adjusted, especially in multi-specification steel strip cutting scenarios. Currently, traditional steel coil uncoiling and cutting equipment uses manual centering or a single fixed-space cutting mechanism. Frequent manual adjustments to correct the displacement may lead to uneven cutting edges and dimensional accuracy deviations. In other words, manual intervention is not only inefficient but also causes a lot of material waste. Therefore, when facing the production needs of multiple batches and multiple widths, the fixed-space cutting mechanism may not be adaptable to different specifications of steel strip, affecting the flexible use of the equipment. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a steel coil uncoiling and cutting device integrating an automatic centering mechanism. This solves the technical problems in the prior art, such as the easy lateral displacement of the steel strip after uncoiling, poor compatibility with various specifications of steel strips, low positioning accuracy of the drive transmission, and poor cutting quality and low production efficiency caused by residual internal stress in the steel strip.

[0004] The purpose and effectiveness of the steel coil uncoiling and cutting device integrating an automatic centering mechanism of the present invention are achieved by the following specific technical means:

[0005] A steel coil uncoiling and cutting device with an integrated automatic centering mechanism includes an uncoiling mechanism and a guide frame disposed on one side of the uncoiling mechanism, wherein the guide frame is provided with an automatic centering mechanism for adjusting the lateral position of the steel coil.

[0006] A support frame is provided on one side of the guide frame, and a guide rail is mounted on the support frame. Multiple sets of adjustable-distance cutting mechanisms are provided on the guide rail to adapt to the cutting requirements of steel strips of different widths. The cutting mechanism includes:

[0007] The drive unit is slidably mounted on the guide rail;

[0008] Mounting bracket, mounted on the drive seat;

[0009] The cutting blade is slidably mounted on the mounting bracket;

[0010] A drive mechanism is mounted on the support frame and is connected to the support shaft of the cutting blade via a transmission connection;

[0011] A lifting drive unit is installed on the support frame, and a support slide is provided on the movable rod of the lifting drive unit for controlling the lifting of the cutting blade;

[0012] A side-push drive component, connected to the drive mechanism, is used to push the drive mechanism so that the support shaft of the cutting blade engages with the drive mechanism.

[0013] A fixed frame is provided on the support slide, and the support shaft of the cutting blade and the drive mechanism are connected to the fixed frame;

[0014] The support frame is equipped with a pressing drive and a cutting table. The movable rod of the pressing drive is equipped with a cutting scissor, and the cutting table is located below the cutting scissor.

[0015] According to a preferred embodiment, the drive mechanism includes:

[0016] The transmission sleeve is mounted on the push plate on the movable rod of the side push drive component.

[0017] The transmission inner shaft is mounted on the fixed frame, and one end passes through the transmission sleeve;

[0018] Two sets of first bevel gears are respectively disposed at one end of the transmission sleeve and one end of the transmission inner shaft;

[0019] The first drive motor is mounted on the support frame;

[0020] A drive shaft is mounted on the support frame and is connected to the first drive motor in a transmission manner;

[0021] Two sets of second bevel gears mesh with two sets of first bevel gears, respectively;

[0022] The drive shaft, the support shaft of the cutting blade, and the inner transmission shaft are all equipped with transmission shafts, and the two sets of second bevel gears and the transmission sleeve are all equipped with transmission sleeves.

[0023] According to a preferred embodiment, when the lifting drive component rises, it drives the transmission shaft on the inner transmission shaft to engage in the transmission sleeve on the transmission sleeve.

[0024] When the side-push drive retracts, the drive shaft on the drive shaft and the drive shaft on the support shaft of the cutting blade are respectively engaged with the drive sleeves on the two sets of second bevel gears.

[0025] According to a preferred embodiment, the transmission sleeve and the transmission inner shaft are provided with a positioning assembly, the positioning assembly comprising:

[0026] Permanent magnet assemblies are respectively mounted on the drive shaft and the drive sleeve;

[0027] An electromagnetic ring is sleeved on the permanent magnet assembly and coaxially arranged with the permanent magnet assembly. When the electromagnetic ring is energized, a magnetic field is generated, which forms a magnetic attraction and positioning force with the permanent magnet assembly to realize the alignment of the transmission shaft and the transmission sleeve.

[0028] The mounting base is installed on the push plate and is used to fix the electromagnetic ring.

[0029] According to a preferred embodiment, the support frame is provided with a photosensitive strip, and the drive seat is provided with an emitter, the emission direction of the emitter being towards the photosensitive strip, forming a positioning mechanism for the drive seat.

[0030] According to a preferred embodiment, the automatic alignment mechanism includes:

[0031] An electric stage is mounted on the guide frame;

[0032] The guide plate has one end rotatably connected to the electric platform, and its movable end faces the unwinding mechanism. The end of the guide plate away from the unwinding mechanism is provided with a guide component.

[0033] A sliding support frame is installed on the side of the unwinding mechanism away from the guide frame;

[0034] The armature plate is rotatably connected at one end to the electric platform and is coaxially arranged with the guide plate;

[0035] A tilting drive is installed on the electric platform, and its movable rod is connected to the guide plate to change the tilt angle of the guide plate.

[0036] A double-headed hydraulic push rod is installed on the sliding support frame, and pressure plates are provided at both ends of the double-headed hydraulic push rod.

[0037] According to a preferred embodiment, the guiding component includes:

[0038] A support platform is located on one side of the guide frame, and one end of the armature is connected to the support platform;

[0039] The skateboard is slidably mounted on the support platform;

[0040] Multiple sets of planar differential centering roller sets are installed on the slide plate, consisting of a driving roller and driven rollers arranged on both sides of the driving roller. The driven rollers are linked to the driving roller through a differential gear set.

[0041] The second drive motor is mounted on the slide plate, and its output end is connected to the drive roller.

[0042] According to a preferred embodiment, the driving roller and the driven roller are both on the same horizontal plane, and the diameter of the driving roller is larger than the diameter of the driven roller;

[0043] By using the diameter difference between the driving roller and the driven roller, the linear velocity of the driven roller is made lower than that of the driving roller to form a planar differential speed. The frictional force generated by the differential speed drives the strip to adaptively center and align.

[0044] According to a preferred embodiment, an elastic stress-relieving roller is mounted on the support platform. The elastic stress-relieving roller is located above the planar differential alignment roller group and is used to synchronously eliminate the internal stress of the strip. The elastic stress-relieving roller includes:

[0045] The transverse frame is fixed to the support platform and spans across the plane differential centering roller group;

[0046] The elastic leveling rollers are arranged in parallel along the strip conveying direction, and the axis of the elastic leveling rollers is parallel to the axis of the drive rollers. The elastic leveling rollers are connected to the cross frame through a spring frame and are used to adjust the downward pressure of the elastic leveling rollers on the strip.

[0047] According to a preferred embodiment, the cross-frame is provided with an adjustment assembly, the adjustment assembly comprising:

[0048] Multiple sets of guide rods are symmetrically arranged on the cross frame;

[0049] Both sets of side plates are installed at the ends of the guide rod, forming a trumpet-shaped inlet;

[0050] A spring, sleeved on the guide rod, is used for the return of the guide rod to its original position.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] 1. This invention, through the coordinated setup of an automatic centering mechanism and multiple sets of adjustable-spacing cutting mechanisms, enables the device to correct lateral offset after the steel strip is uncoiled, adapting to the cutting requirements of steel strips of different widths and improving the device's adaptability to various scenarios. The device achieves adaptive centering of the steel strip through the differential friction of the planar differential-speed centering roller group. Combined with the positioning mechanism of the photosensitive belt and transmitter, it adjusts the cutting spacing, avoiding the tedious operations of manual centering and frequent blade changes. This allows the device to complete centering and spacing switching without manual intervention, improving its operational capabilities in multi-specification production scenarios.

[0053] 2. When using this device, the magnetic positioning structure of the electromagnetic ring and permanent magnet assembly enables the drive mechanism to be positioned, reducing mechanical wear and improving transmission stability, thus enhancing the cutting accuracy. Furthermore, the simultaneous release of internal stress in the steel strip by the elastic stress-relieving roller assembly prevents warping and deformation of the steel strip after cutting, reducing subsequent leveling processes and lowering production costs. Simultaneously, the synergistic effect of magnetic positioning and stress relief further ensures the consistency of finished product dimensions, improving the processing quality and overall practicality of the device. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the assembled structure of the present invention;

[0055] Figure 2 This is a partial structural schematic diagram of the support frame of the present invention;

[0056] Figure 3 This is a schematic diagram of the drive mechanism of the present invention;

[0057] Figure 4 yes Figure 3 Enlarged view of region a in the middle;

[0058] Figure 5 This is a structural schematic diagram of the lifting drive component of the present invention;

[0059] Figure 6 This is a schematic diagram of the structure of the first bevel gear and the second bevel gear of the present invention;

[0060] Figure 7 This is a schematic diagram of the electromagnetic ring and permanent magnet ring of the present invention;

[0061] Figure 8 This is a schematic diagram of the structure of the guide component of the present invention;

[0062] Figure 9 This is a schematic diagram of the planar differential centering roller assembly of the present invention;

[0063] Figure 10 This is a schematic diagram of the differential gear set of the present invention.

[0064] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0065] 11-Unwinding mechanism; 12-Guide frame; 13-Support frame; 14-Guide rail; 15-Photosensitive belt; 16-Emitter; 21-Drive base; 22-Mounting frame; 23-Cutting disc; 24-Lifting drive component; 25-Support slide; 26-Side push drive component; 27-Fixed frame; 31-Pressing drive component; 32-Cutting table; 33-Cut shears; 41-Transmission sleeve; 42-Transmission inner shaft; 43-First bevel gear; 44-First drive motor; 45-Drive shaft; 46-Second bevel gear; 47-Transmission shaft; 48-Transmission sleeve; 49-Push plate; 51-Permanent magnet ring; 52-Electromagnetic ring; 53-Mounting base; 61-Electric platform; 62-Guide plate; 63-Sliding support frame; 64-Handle plate; 65-Tilting drive component; 66-Double-headed hydraulic push rod; 661-Pressure plate; 71-Support platform; 72-Slide plate; 731-Drive roller; 732-Driven roller; 733-Differential gear set; 734-Second drive motor; 81-Crossing frame; 82-Elastic leveling roller; 83-Spring frame; 91-Guide rod; 92-Side plate. Detailed Implementation

[0066] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but should not be used to limit the scope of protection of the present invention.

[0067] Example:

[0068] like Figures 1 to 10 As shown, this invention provides a steel coil uncoiling and cutting device with an integrated automatic centering mechanism, including an uncoiling mechanism 11 and a guide frame 12 disposed on one side of the uncoiling mechanism 11. The guide frame 12 is equipped with an automatic centering mechanism for adjusting the lateral position of the steel coil. The uncoiling mechanism 11 can be a hydraulic expansion uncoiling machine, which is equipped with an expansion shaft and a variable frequency speed control motor. The expansion block is driven to expand radially through a hydraulic system to clamp steel coils of different inner diameters. At the same time, the variable frequency motor can adaptively adjust the uncoiling speed according to the subsequent cutting speed to avoid steel strip pulling or accumulation, and to smoothly release the steel coil and transport it to the guide frame 12.

[0069] A support frame 13 is provided on one side of the guide frame 12. The support frame 13 is welded from channel steel and fixed to the ground at the bottom with expansion bolts to ensure no shaking during operation. A guide rail 14 is installed on the support frame 13. The diagram shows a toothed guide rail, but it is not limited to this type; conventional transmission guide rails such as ball bearing guides and dovetail guides can also be used. Its core requirement is to ensure smooth movement and positioning of the cutting mechanism. Three sets of adjustable-spacing cutting mechanisms are provided on the guide rail 14 (the specific number can be configured according to the actual cutting width requirements) to adapt to the cutting needs of steel strips with different widths from 500mm to 2500mm. The cutting mechanism includes:

[0070] The drive base 21 is slidably mounted on the guide rail 14. The drive base 21 adopts a one-piece cast iron structure and is equipped with a bottom-mounted meshing gear and a guide slider. The guide slider is located on both sides of the guide rail 14. The drive base 21 has a built-in servo drive motor, which is connected to the meshing gear for transmission. It is also equipped with an electromagnetic braking device. After the spacing is adjusted to the correct position, the servo motor is de-energized, and the electromagnetic brake immediately engages and locks the gear shaft, forming a rigid positioning. This completely prevents the drive base 21 from shifting due to vibration during operation, ensuring the consistency and stability of the cutting spacing.

[0071] Mounting bracket 22 is mounted on drive base 21. It is fastened to drive base 21 by bolts. Its bottom is slidably connected to auxiliary guide rail of support bracket 13 via auxiliary slider to provide support for cutting blade 23 and prevent deviation or shaking due to force during cutting. Vertical grooves are provided on the side to guide cutting blade 23 to achieve smooth lifting and lowering, ensuring vertical and accurate cutting trajectory, and adapting to the cutting needs of steel strips of different thicknesses.

[0072] The cutting disc 23 is slidably mounted on the mounting bracket 22. The cutting disc 23 is a diamond cutting disc.

[0073] The drive mechanism, mounted on the support frame 13, is connected to the support shaft of the cutting blade 23. It is used to provide stable cutting power to the cutting blade 23.

[0074] The lifting drive component 24 is mounted on the support frame 13. A support slide 25 is mounted on the movable rod of the lifting drive component 24 to control the lifting and lowering of the cutting blade 23. An electric push rod or hydraulic cylinder is used, mounted on the crossbeam of the support frame 13. The movable rod of the lifting drive component 24 is fixedly connected to the support slide 25 via a flange. The electric push rod or hydraulic cylinder extends and retracts, driving the support slide 25 to move up and down, thus controlling the lifting stroke of the cutting blade 23 and adapting to the cutting needs of steel strips of different thicknesses.

[0075] The side-push drive component 26 is a pneumatic push rod or an electric slide. Its cylinder body is connected to the support frame 13, and its piston rod is fixed to the housing of the drive mechanism. It is used to push the drive mechanism to move horizontally, so that the support shaft of the cutting blade 23 engages with the output end of the drive mechanism.

[0076] A fixed frame 27 is mounted on a support slide 25, and the support shaft of the cutting blade 23 and the drive mechanism are connected to the fixed frame 27. The cutting blade 23 is fixed to the support slide 25 by bolts, and its support shaft is connected to the fixed frame 27 via a deep groove ball bearing (not shown in the figure) to ensure stability during transmission.

[0077] A downward driving component 31 is provided on the top crossbeam of the support frame 13. The downward driving component 31 can be a stroke hydraulic cylinder. The lower end of the movable rod of the downward driving component 31 is provided with a cutting blade 33 through a connecting seat. The cutting blade 33 is made of Cr12MoV alloy. The cutting table 32 is made of high-strength wear-resistant steel plate. The cutting table 32 is fixed to the top of the support frame 13 by a bracket and is located directly below the cutting blade 33. The gap between the surface of the cutting table 32 and the cutting blade 33 can be adjusted by shims to ensure that the cutting edge is flat and burr-free.

[0078] like Figures 1 to 7 As shown, the drive mechanism includes:

[0079] The transmission sleeve 41 and the movable rod of the side push drive component 26 are provided with a push plate 49. The transmission sleeve 41 is fastened to the center position of the push plate 49 by a flange and bolts.

[0080] The transmission inner shaft 42 is made of No. 45 steel and heat treated. It is installed in the bearing seat of the fixed frame 27 through a deep groove ball bearing, and one end of it is fitted through the transmission sleeve 41 with clearance.

[0081] Two sets of first bevel gears 43 are respectively fixed to the opposite ends of the transmission sleeve 41 and the transmission inner shaft 42 by flat keys.

[0082] The first drive motor 44 is a three-phase asynchronous motor, which is fixedly mounted on the side of the support frame 13 via a motor mount.

[0083] The drive shaft 45 is made of 45 steel and is horizontally mounted on the support frame 13 through two sets of bearing seats. One end of the shaft is connected to the output shaft of the first drive motor 44 through a coupling, and the other end extends to the side of the cutting mechanism.

[0084] Two sets of second bevel gears 46 mesh with two sets of first bevel gears 43 respectively.

[0085] Drive shaft 47 is provided on drive shaft 45, support shaft of cutting blade 23 and inner drive shaft 42. Drive sleeve 48 is provided on both sets of second bevel gears 46 and drive sleeve 41. Drive shaft 47 is provided with multiple sets of flat keys, and keyway is provided on drive sleeve 48.

[0086] When the lifting drive component 24 rises, it drives the fixed frame 27 and the inner transmission shaft 42 to move upward synchronously, so that the keyed transmission shaft 47 at the end of the inner transmission shaft 42 is engaged in the keyed transmission sleeve 48 on the transmission sleeve 41, and torque is transmitted through key engagement. When the height of the cutting blade 23 is adjusted, it can also achieve real-time maintenance of dynamic transmission connection and adaptive compensation of coaxiality. The keyed transmission structure has axial sliding compensation capability. During the adjustment of the cutting blade 23 along the vertical slide groove, the meshing pair of the keyed transmission shaft 47 and the transmission sleeve 48 can slide relative to each other axially. This does not interrupt the torque transmission path, and the radial movement of the transmission system is constrained by the guiding and limiting effect of the key, ensuring the stability of the cutting speed and the flatness of the cut, and realizing the coordinated linkage of height adjustment and power transmission.

[0087] When the side-push drive component 26 retracts, its piston rod drives the push plate 49, transmission sleeve 41, and two sets of first bevel gears 43 to move synchronously towards the drive shaft 45 and the support shaft of the cutting disc 23. This causes the keyed drive shaft 47 at the end of the drive shaft 45 and the keyed drive shaft 47 at the end of the cutting disc 23 support shaft to respectively engage in the keyed drive sleeves 48 corresponding to the two sets of second bevel gears 46, forming a dual-path synchronous transmission link. In this state, the power of the first drive motor 44 is split through the drive shaft 45 and transmitted to the support shaft of the cutting disc 23 through the meshing pairs of the two sets of bevel gears, realizing high-speed rotation and cutting of the cutting disc 23; at the same time, the rigid meshing structure of the keyed drive can ensure torque transmission efficiency.

[0088] Simultaneously, when the lifting drive component 24 and the side push drive component 26 disengage the flat key transmission shaft 47 from the transmission sleeve 48, the local transmission link can be quickly cut off, forming mechanical isolation and enabling the cutting blade 23 to rotate in a geared manner. This avoids unintended power coupling between the drive mechanism and the cutting blade 23—preventing the cutting blade 23 from continuously rotating due to drive inertia in a non-working state, thus preventing safety hazards. It also avoids positioning deviations caused by vibrations from the drive system being transmitted to the cutting blade 23 during tool changes, maintenance, or spacing adjustments. Furthermore, it eliminates power cross-interference in the event of a single-path transmission failure, ensuring the reliability of independent operation of each unit in the transmission system and reducing component wear and failure rates.

[0089] Positioning components are provided on the transmission sleeve 41 and the transmission inner shaft 42. The positioning components include:

[0090] Permanent magnet rings 51 are respectively embedded on the outer peripheral surface of the end of the transmission shaft 47 and the corresponding position on the inner wall of the transmission sleeve 48. They are made of neodymium iron boron permanent magnets and are arranged in alternating N and N poles to form an annular magnetic attraction surface, ensuring that the magnetic attraction force is evenly distributed.

[0091] An electromagnetic ring 52 is sleeved on the outside of a permanent magnet ring 51 and is coaxially arranged with the permanent magnet ring 51. The radial gap between its inner wall and the permanent magnet ring 51 is controlled. When the electromagnetic ring 52 is energized, a controllable magnetic field is generated, which forms a directional magnetic attraction and positioning force with the permanent magnet ring 51. Using the guiding and adsorption effect of the magnetic field, the transmission shaft 47 is guided to be inserted into the preset position of the transmission sleeve 48, so as to realize the alignment of the transmission shaft 47 and the transmission sleeve 48.

[0092] Mounting base 53 is made of lightweight aluminum alloy and is fastened to push plate 49 by bolts. It has an annular mounting groove inside that is compatible with electromagnetic ring 52. The groove is equipped with an insulating and heat-insulating pad (not shown in the figure) to securely fix electromagnetic ring 52 and to neatly store the wiring terminals of electromagnetic ring 52, so as to avoid messy wiring affecting the operation of transmission components.

[0093] A high-precision linear photosensitive strip 15 is laid parallel on the crossbeam of the support frame 13. The photosensitive strip 15 has a built-in grating scale, which can provide real-time feedback of position coordinate signals. A laser emitter 16 is installed on the side of each drive seat 21. The laser emission direction of the emitter 16 is perpendicular to the sensing surface of the photosensitive strip 15. The two work together to form a closed-loop positioning mechanism for the drive seat 21.

[0094] The laser emitter 16 continuously emits positioning lasers to the photosensitive belt 15. The photosensitive belt 15 transmits the sensed laser position signal to the control system. By comparing the preset cutting spacing parameters with the real-time position data, the servo motor of the drive seat 21 is driven to operate, thereby adjusting the spacing of multiple cutting mechanisms. At the same time, after the spacing is adjusted to the correct position, a secondary calibration can be performed based on the feedback signal from the photosensitive belt 15 to eliminate errors caused by mechanical transmission gaps.

[0095] like Figure 1 , Figures 7 to 10 As shown, the automatic centering mechanism includes:

[0096] The electric stage 61 adopts a linear module slide. The bottom of the linear module slide is equipped with four sets of self-driven guide pulleys. The slider has a built-in micro servo drive unit and position encoder, which can move autonomously along the slide rail on the guide frame 12, driving the guide plate 62 and the armature plate 64 to move synchronously, providing basic displacement compensation for centering adjustment, and adapting to the centering requirements of steel strips of different widths.

[0097] The guide plate 62 is made of wear-resistant stainless steel sheet. The plate surface is polished to reduce the resistance of the steel strip conveying. One end of the guide plate 62 is rotatably connected to the slide of the electric platform 61 through a hinge. The movable end faces the uncoiling mechanism 11. An L-shaped mounting bracket is welded to the end of the guide plate 62 away from the coiling mechanism 11 for assembling the armature plate 64 and guiding the steel strip smoothly into the subsequent processing stage.

[0098] The sliding support frame 63 is a frame structure welded from steel sections. It is equipped with a heavy-duty slider at the bottom and is slidably mounted on the linear screw guide rail on the side of the uncoiling mechanism 11 away from the guide frame 12. It can be synchronously adjusted according to the change of steel strip width.

[0099] The armature plate 64 is made of stainless steel of the same specification as the guide plate 62. Its length matches that of the guide plate 62. One end of the armature plate 64 is also rotatably connected to the slide of the electric platform 61 via a hinge. It is coaxially arranged with the guide plate 62, and the two form a symmetrical guide structure, which together constrain the conveying path of the steel belt.

[0100] The tilting drive component 65 adopts a double-outlet hydraulic cylinder, which is fixed at the center of the sliding support frame 63. Both ends of the double-headed hydraulic push rod 66 are connected to an elastic pressure plate 661 through a flange. The bottom of the pressure plate 661 is pasted with a wear-resistant rubber pad, which can flexibly press and position its edges before the steel strip is conveyed to prevent the steel strip from shifting in the early stage of uncoiling.

[0101] The double-headed hydraulic push rod 66 adopts a double-outlet hydraulic cylinder and is fixed at the center of the sliding bearing frame 63. Both ends of the double-headed hydraulic push rod 66 are connected to a pressure plate 661 through a flange. The bottom of the pressure plate 661 is pasted with a wear-resistant rubber pad (shown in the figure), which can flexibly press and position its edges before the steel strip is conveyed to prevent the steel strip from shifting in the early stage of uncoiling.

[0102] The guiding components include:

[0103] The support platform 71 is welded from Q235 steel plate and has an overall rectangular frame structure. It is fixed to the ground on one side of the guide frame 12 by anchor bolts. One end of the armature plate 64 is slidably connected to the support platform 71 through a pulley to ensure the stability of the armature plate 64 when it swings.

[0104] The skateboard 72 is made of high-strength aluminum alloy sheet and is equipped with two sets of pulleys at the bottom. It is slidably set on the slide rail on the top of the support platform 71 and can slide freely along the length of the steel strip to meet the centering requirements of steel strips of different specifications.

[0105] Multiple sets of planar differential centering rollers are installed at equal intervals on the slide plate 72 along the steel belt conveying direction. Each roller set consists of one driving roller 731 and two driven rollers 732 symmetrically arranged on both sides of the driving roller 731. The roller bodies are all coated with polyurethane material, which can not only avoid scratching the surface of the steel belt, but also provide sufficient friction. The driven rollers 732 are linked with the driving roller 731 through a differential gear set 733. The gear set transmission ratio is set to 1:1.2, which allows the driven rollers 732 on both sides to rotate at a slightly higher speed than the driving roller 731. The speed difference is used to form a centripetal thrust to achieve automatic centering of the steel belt.

[0106] The second drive motor 734 is a variable frequency speed control motor, which is fixedly installed at the end of the slide plate 72 through the motor mount. Its output end is connected to the shaft of the drive roller 731 through the synchronous belt pulley. It can adaptively adjust the speed of the roller group according to the speed of the steel belt conveying, so as to ensure that the centering action is synchronized with the conveying rhythm and avoid wrinkles or stretching deformation of the steel belt.

[0107] Both the driving roller 731 and the driven roller 732 are on the same horizontal plane, and their surfaces are precision-machined to ensure height consistency, ensuring that the steel strip remains horizontal throughout the conveying process and preventing warping or jamming of the steel strip due to differences in roller surface height. The diameter of the driving roller 731 is larger than that of the driven roller 732, and they are driven synchronously using the same transmission ratio. Due to the diameter difference between the driving roller 731 and the driven roller 732, the linear velocity of the driven roller 732 is lower than that of the driving roller 731 when the roller group rotates synchronously, thus forming a stable planar differential speed effect. When the steel strip shifts laterally and contacts one or both sides of the driven roller 732, the difference in linear velocity between the driven roller 732 and the driving roller 731 generates a frictional force component pointing towards the center of the roller group in the contact area between the steel strip and the roller surface. The larger the offset, the stronger the contact area and the frictional force, which in turn drives the steel strip to automatically slide and center towards the center line of the roller group. The entire process does not require additional photoelectric correction sensors or manual intervention, and can achieve real-time adaptive centering of the steel strip conveyor, ensuring the feeding accuracy of subsequent cutting processes.

[0108] An elastic stress-relieving roller is installed on the support platform 71. The elastic stress-relieving roller is located above the planar differential alignment roller group and is used to synchronously eliminate the internal stress of the strip. The elastic stress-relieving roller includes:

[0109] The cross frame 81 is made of aluminum alloy profiles and is vertically fixed to the columns on both sides of the support platform 71 by bolts. It spans directly above the plane differential centering roller group. The span of the cross frame 81 can be finely adjusted according to the width of the steel strip to adapt to the processing requirements of steel strips of different specifications.

[0110] The elastic leveling roller 82 is made of smooth stainless steel and is arranged in parallel at equal intervals along the strip conveying direction. The axis of the elastic leveling roller 82 is strictly parallel to the axis of the drive roller 731 to ensure uniform pressure distribution on the steel strip. The elastic leveling roller 82 is elastically connected to the cross frame 81 through the spring frame 83. The spring frame 83 has a built-in compression spring with adjustable preload. The operator can control the downward pressure of the elastic leveling roller 82 on the steel strip by rotating the adjusting nut at the top of the spring.

[0111] When the steel strip passes through, the elastic leveling roller 82 will press against the surface of the steel strip with flexible pressure, and work with the differential speed centering roller group below to form a slight up and down squeezing and stretching, effectively eliminating the wave-shaped deformation and internal stress of the steel strip caused by uncoiling or transportation, avoiding problems such as edge curling and twisting of the steel strip during subsequent cutting, and further improving the flatness of the finished steel strip.

[0112] An adjustment assembly is provided on the cross frame 81, the adjustment assembly including:

[0113] Multiple sets of guide rods 91, made of high-strength chrome-plated optical shafts, are symmetrically inserted into the guide sleeves on both sides of the cross frame 81;

[0114] The axial movement direction of the guide rod 91 is perpendicular to the steel belt conveying direction, and it can adaptively extend and retract as the width of the steel belt changes.

[0115] The two sets of side plates 92 are made of wear-resistant stainless steel sheet bent into shape. The plate surface is polished to avoid scratching the steel strip surface. The two sets of side plates 92 are welded and fixed to the ends of the guide rods 91 on both sides. The plate surface is at a 15° angle with the steel strip conveying direction, forming a trumpet-shaped inlet together, which can pre-guide the steel strip entering the roller group and prevent the edge of the steel strip from scratching the end face of the roller group.

[0116] The spring, made of corrosion-resistant stainless steel, is fitted onto the section of the guide rod 91 located between the cross frame 81 and the side plate 92. When the width of the steel strip changes, the side plate 92 will be squeezed by the edge of the steel strip, causing the guide rod 91 to slide axially. The spring will then contract or rebound. After the steel strip has completely passed through, the spring's rebound force can automatically reset the guide rod 91 and the side plate 92, ensuring that the flared inlet is always adapted to the width of the steel strip, thus improving the smoothness and stability of the steel strip feeding.

[0117] It should be noted that all transmission components of the present invention can be equipped with protective covers (not shown in the figure), which is a conventional method in this technical field and will not be described in detail here.

[0118] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A steel coil unwinding and slitting apparatus with integrated automatic centering mechanism, characterized in that, Including the uncoiling mechanism (11) and the guide frame (12) arranged in one side of the uncoiling mechanism (11), and the guide frame (12) is equipped with automatic centering mechanism for adjusting the transverse position of the steel coil; The guide frame (12) is equipped with a support frame (13) on one side, and the support frame (13) is installed with a guide rail (14), and a plurality of adjustable cutting mechanisms are arranged on the guide rail (14) to adapt to the cutting requirements of different width steel strips, and the cutting mechanism comprises: A driving seat (21) is slidably arranged on the guide rail (14); A mounting frame (22) is mounted on the driving seat (21); A cutting piece (23) is slidably arranged on the mounting frame (22); A driving mechanism is mounted on the support frame (13) and is in transmission connection with the support shaft of the cutting piece (23); A lifting driving member (24) is mounted on the support frame (13), and a support sliding table (25) is arranged on the movable rod of the lifting driving member (24) to control the lifting of the cutting piece (23); A side pushing driving member (26) is connected with the driving mechanism to push the driving mechanism, so that the support shaft of the cutting piece (23) is engaged with the driving mechanism; A fixing frame (27) is arranged on the support sliding table (25), and the support shaft of the cutting piece (23) and the driving mechanism are connected with the fixing frame (27); The support frame (13) is provided with a pressing driving member (31) and a cutting table (32), and a cutting knife (33) is arranged on the movable rod of the pressing driving member (31), and the cutting table (32) is located below the cutting knife (33).

2. The steel coil unwinding and cutting apparatus with integrated automatic centering mechanism according to claim 1, characterized in that, The driving mechanism comprises: A transmission sleeve (41) is arranged on the movable rod of the side pushing driving member (26), and a push plate (49) is arranged on the transmission sleeve (41); A transmission inner shaft (42) is mounted on the fixing frame (27), and one end penetrates into the transmission sleeve (41); Two groups of first bevel gears (43) are arranged on the transmission sleeve (41) and one end of the transmission inner shaft (42) respectively; A first driving motor (44) is mounted on the support frame (13); A driving shaft (45) is mounted on the support frame (13) and is in transmission connection with the first driving motor (44); Two groups of second bevel gears (46) are engaged with the two groups of first bevel gears (43) respectively; The driving shaft (45), the support shaft of the cutting piece (23) and the transmission inner shaft (42) are all provided with transmission shafts (47), and the two groups of second bevel gears (46) and the transmission sleeve (41) are all provided with transmission sleeves (48).

3. The steel coil uncoiling and cutting device with integrated automatic centering mechanism according to claim 2, characterized in that: When the lifting driving member (24) rises, the transmission shaft (47) on the transmission inner shaft (42) is clamped in the transmission sleeve (48) on the transmission sleeve (41). When the side pushing driving part (26) is retracted, the transmission shaft (47) on the driving shaft (45) and the transmission shaft (47) on the support shaft of the cutting blade (23) are respectively clamped on the transmission sleeve (48) on the two groups of second bevel gears (46).

4. The steel coil unwinding and cutting apparatus with integrated automatic centering mechanism according to claim 3, characterized in that, The transmission sleeve (41) and the transmission inner shaft (42) are provided with a positioning assembly, the positioning assembly comprises: A permanent magnet group (51) is respectively arranged on the transmission shaft (47) and the transmission sleeve (48); An electromagnetic ring (52) is sleeved on the permanent magnet group (51) and coaxially arranged with the permanent magnet group (51), a magnetic field is generated by energizing the electromagnetic ring (52), and a magnetic attraction positioning force is formed with the permanent magnet group (51) to realize the alignment of the transmission shaft (47) and the transmission sleeve (48); A mounting seat (53) is mounted on the push plate (49) for fixing the electromagnetic ring (52).

5. The steel coil unwinding and cutting device with an integrated automatic centering mechanism according to claim 4, characterized in that: The support frame (13) is provided with a photosensitive strip (15), and the driving seat (21) is provided with an emitter (16), the emitting direction of the emitter (16) is towards the photosensitive strip (15), forming a positioning mechanism of the driving seat (21).

6. The steel coil unwinding and cutting apparatus with integrated automatic centering mechanism according to claim 1, wherein, The automatic centering mechanism comprises: An electric carrier (61) is arranged on the guide frame (12); A material guide plate (62) is rotatably connected to the electric carrier (61) at one end, and the movable end thereof is towards the unwinding mechanism (11), and the end of the material guide plate (62) away from the unwinding mechanism (11) is provided with a guide assembly; A sliding carrier (63) is mounted on the side of the unwinding mechanism (11) away from the guide frame (12); A link plate (64) is rotatably connected to the electric carrier (61) at one end and coaxially arranged with the material guide plate (62); An inclined driving part (65) is mounted on the electric carrier (61), and the movable rod thereof is connected with the material guide plate (62) for changing the inclination angle of the material guide plate (62); A double-head hydraulic push rod (66) is mounted on the sliding carrier (63), and the two ends of the double-head hydraulic push rod (66) are provided with pressure plates (661).

7. The steel coil unwinding and cutting apparatus with integrated automatic centering mechanism according to claim 6, characterized in that, The guide assembly comprises: A support table (71) is located on one side of the guide frame (12), and one end of the link plate (64) is connected with the support table (71); A sliding plate (72) is slidingly arranged on the support table (71); A plurality of groups of planar differential speed centering roller groups are mounted on the sliding plate (72) and are composed of a driving roller (731) and driven rollers (732) arranged on both sides of the driving roller (731), the driven rollers (732) are linked with the driving roller (731) through a differential gear set (733); A second driving motor (734) is mounted on the sliding plate (72), and the output end thereof is in transmission connection with the driving roller (731).

8. The steel coil unwinding and cutting device with an integrated automatic centering mechanism according to claim 7, characterized in that: The driving roller (731) and the driven roller (732) are in the same horizontal plane, the diameter of the driving roller (731) is greater than the diameter of the driven roller (732); The linear speed of the driven roller (732) is lower than the linear speed of the driving roller (731) by the diameter difference, so as to form a plane differential speed, and the friction generated by the differential speed is used to drive the strip steel to adaptively center and center.

9. The steel coil unwinding and cutting apparatus with integrated automatic centering mechanism according to claim 8, characterized in that, The support table (71) is provided with an elastic stress relief roller above the plane differential speed centering roller group, which is used to synchronously eliminate the internal stress of the strip steel, and the elastic stress relief roller comprises: A cross frame (81) is fixed to the support table (71) and crosses above the plane differential speed centering roller group; Elastic leveling rollers (82) are arranged in parallel along the conveying direction of the strip steel, and the axis of the elastic leveling roller (82) is parallel to the axis of the driving roller (731), the elastic leveling roller (82) is connected to the cross frame (81) through a spring frame, and is used to adjust the pressing force of the elastic leveling roller (82) on the strip steel.

10. The steel coil unwinding and cutting apparatus with integrated automatic centering mechanism according to claim 9, wherein, The cross frame is provided with an adjusting assembly, and the adjusting assembly comprises: A plurality of guide rods (91) are symmetrically arranged on the cross frame (81); Two side plates (92) are arranged at the ends of the guide rods (91) to form a horn-shaped entrance; A spring is sleeved on the guide rod (91) and is used for resetting the guide rod (91).

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