Metal bar slitting and rolling device

Abstract

The invention relates to the technical field of steel production and processing devices, in particular to a metal bar slitting and rolling device which comprises a rack, an upper roller, a lower roller and a control system, a plurality of lifting sliding grooves are vertically formed in the rack, adjusting plates are slidably connected into the lifting sliding grooves, and a plurality of adjusting bolts are vertically and rotatably connected to the upper end face of the rack; an upper mounting groove is horizontally formed in the adjusting plate, a lower mounting groove is horizontally formed in the lower end of the rack, an upper mounting frame and a lower mounting frame are slidably connected into the upper mounting groove and the lower mounting groove respectively, a first motor is mounted on the adjusting plate, and a second motor is mounted on the rack; the control system drives the upper adjusting screw rod and the lower adjusting screw rod through the first motor and the second motor correspondingly, and the upper mounting frame and the lower mounting frame are driven to transversely move in sequence. And traditional manual pushing and positioning are replaced by mechanical driving, so that the labor intensity of operators is greatly reduced, and the roller changing efficiency of the metal bar slitting and rolling device is effectively guaranteed.

Description

Technical Field

[0001] This invention relates to the field of steel production and processing equipment technology, specifically a metal bar cutting and rolling device. Background Technology

[0002] Metal bar slitting and rolling equipment is a specialized piece of equipment in steel rolling production lines used to continuously slit a high-temperature rolled metal bar into multiple finished bars of the same specification along the longitudinal direction using special roll passes and slitting guides. Its core principle is to pre-shape the bar using the roll passes, and then, through the mechanical force of the slitting rollers or the natural separation action of the roll passes, split the continuous billet into multiple independent bars along the longitudinal direction, while maintaining continuous plastic deformation of the metal. Finally, after subsequent finishing rolling, cooling, and shearing processes, qualified products are formed. Existing metal bar cutting... After prolonged use, the rolls of the slitting rolling unit will experience uniform or localized excessive wear on the cutting pass and the working surface of the roll body under the combined effects of continuous rolling force, friction, and alternating high and low temperatures. This leads to changes in the pass size and deviations in the width of the cutting zone, reducing the dimensional accuracy of the rolled product. However, most existing metal bar slitting rolling units use an integrated rigid connection between the roll box and the frame. The rolls need to be hoisted as a whole when disassembling. If the center of gravity is off or the mating surfaces are corroded, jamming or sticking can easily occur, requiring multiple people to pry it open, which increases labor intensity and poses a risk of equipment collision.

[0003] To address the aforementioned problems, existing technologies have proposed several solutions. For example, utility model patent application number CN202420715723.9 discloses a steel cutting and rolling device that is easy to replace and maintain. This solution uses a sleeve block to movably connect the rotating rod and the rotating roller, allowing both the rotating rod and the rotating roller to be disassembled and the cutter to be replaced, thus solving the problem of the cutting roller being difficult to remove. Another example is utility model patent application number CN202222743920.5, which discloses a steel cutting and rolling device that is easy to adjust. The slitting roll is limited at both ends by a fixing mechanism. Both ends of the slitting roll are rotatably connected between the upper limit plate and the lower limit plate. The upper limit plate is lifted upward by the screw driven by the turntable, which cancels the fastening between the locking movable part and the locking fixed part, and flips the connecting plate to open the top of the slot, making it easy to disassemble and assemble the slitting roll. The roll can be replaced and adjusted according to different slitting and rolling requirements. However, the existing roll changing process is still a discrete operation mode of decentralized disassembly, manual alignment and repeated locking, which has the problems of low roll changing efficiency and high labor intensity. Summary of the Invention

[0004] The purpose of this invention is to provide a metal bar cutting and rolling device to solve the problems of low roll changing efficiency and high labor intensity when disassembling and assembling rolls in a metal bar cutting and rolling device.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A metal bar cutting and rolling device includes a frame, an upper roll, a lower roll, and a control system. Multiple vertically opening lifting grooves are provided within the frame, and adjusting plates are slidably connected within these grooves. Multiple adjusting bolts are vertically rotatably connected to the upper surface of the frame, and the lower ends of these bolts are threadedly connected to the adjusting plates. An upper mounting groove is horizontally opened on the adjusting plates, and a lower mounting groove is horizontally opened on the lower end of the frame. An upper mounting frame and a lower mounting frame are slidably connected within the upper and lower mounting grooves, respectively. The upper roll and lower roll are rotatably connected to the upper and lower mounting frames, respectively. The control system is mounted on the frame. A first motor is mounted on the adjusting plate, and a second motor is mounted on the frame. Both the first and second motors are electrically connected to the control system. An upper adjusting screw is horizontally rotatably connected to the adjusting plate, and a lower adjusting screw is horizontally rotatably connected to the frame. The upper and lower adjusting screws are coaxially connected to motor one and motor two, respectively, and are threaded onto the upper and lower mounting frames, respectively. The sliding fit between the upper and lower mounting frames and their corresponding mounting slots, combined with the lifting adjustment of the adjusting plate via adjusting bolts, provides flexible space for the assembly and disassembly of the rolls. The control system drives the upper and lower adjusting screws via motor one and motor two, respectively, causing the upper and lower mounting frames to move laterally in sequence. Mechanized drive replaces traditional manual pushing and positioning, significantly reducing the labor intensity of operators and effectively ensuring the roll changing efficiency of the metal bar cutting and rolling device.

[0007] Preferably, both the upper and lower mounting slots have positioning slots on their inner sidewalls, and both the upper and lower mounting frames have storage holes on their sides. Positioning blocks are slidably connected within each of the storage holes. The end of each positioning block near the positioning slot is a hemispherical structure. A return spring is installed within each of the storage holes, with its two ends connected to the bottom of the storage hole and the positioning block, respectively. This combination of positioning slots, storage holes, hemispherical positioning blocks, and return springs avoids misalignment of the mounting frame during roll changing in the metal bar cutting and rolling device, cumbersome pre-positioning, and axial movement during operation. The issue of movement is addressed during roll changing. As the upper and lower mounting frames slide along their respective mounting grooves, the hemispherical positioning block automatically engages with the positioning groove under the force of the return spring. The guiding nature of the hemispherical structure enables rapid pre-positioning of the mounting frame, eliminating the need for repeated manual calibration using feeler gauges, templates, and other tools. This avoids the problems of low efficiency and large deviations associated with traditional manual alignment. Simultaneously, the cooperation between the positioning block and the groove restricts axial movement of the mounting frame during rolling, preventing displacement due to rolling vibrations. This ensures the efficiency of roll changing in the metal bar cutting and rolling device, and provides stable pre-positioning and anti-movement effects.

[0008] Preferably, both the upper and lower mounting frames are provided with locking hooks on their right end faces. Multiple locking hooks are L-shaped, and locking handles are rotatably connected to corresponding positions on the adjusting plate and the frame. The locking handles can be engaged within the locking hooks, and torsion springs are provided between the locking handles and the adjusting plate and the frame. This combination of L-shaped locking hooks, rotatable locking handles, and torsion springs avoids the problems of cumbersome locking and unlocking operations, insufficient locking reliability, and loosening of the upper or lower mounting frames during roll changing in the metal bar cutting and rolling device. During roll changing... The locking handle and the locking hook can be released simply by applying external force to rotate the locking handle, eliminating the need to disassemble bolts and other fasteners one by one, thus avoiding the time-consuming and labor-intensive drawbacks of traditional locking structures. When locking, the elastic restoring force of the torsion spring ensures that the locking handle and the locking hook are tightly engaged, eliminating the need for manual reinforcement and simplifying the operation process. At the same time, this structure provides a stable axial locking force for the mounting frame, effectively preventing the mounting frame from shifting or loosening due to vibration and impact during rolling. It also improves the roll changing efficiency of the metal bar cutting and rolling device, shortens the time for a single locking and unlocking operation, and ensures the positioning stability of the mounting frame.

[0009] Preferably, both the upper and lower adjusting screws are equipped with locking discs at their ends near the first and second motors, respectively. The locking discs have multiple locating pin holes evenly distributed around their circumference. Electromagnetic locking pins are installed on both the adjusting plate and the frame, and these electromagnetic locking pins are electrically connected to the control system. This combination of locking discs at the ends of the upper and lower adjusting screws, locating pin holes on the locking discs, electromagnetic locking pins on the adjusting plate and frame, and the control system avoids the cumbersome locking and unlocking operations of the adjusting screws during roll changing in the metal bar cutting and rolling device, the easy positioning deviations when the upper and lower rolls are changed sequentially, and the problem of the adjusting screws rotating due to vibration during equipment operation, leading to displacement and shaking of the mounting frame. During roll changing, the control system first controls the electromagnetic locking pins corresponding to the upper adjusting screw to retract and release the lock, then drives the first motor to move the upper adjusting screw... The upper mounting bracket is moved to a position convenient for replacing the upper roll. After replacement, the No. 1 motor is driven to reset the upper mounting bracket, and then the electromagnetic locking pin is inserted into the positioning pin hole of the upper adjusting screw locking plate to complete the locking. Subsequently, the same process is followed to complete the replacement and locking of the lower roll through the electromagnetic locking pin of the lower adjusting screw, the No. 2 motor, and the lower adjusting screw. The entire process does not require manual insertion or removal of pins or tightening of fasteners, simplifying the operation steps and avoiding manual positioning deviations. At the same time, the precise cooperation between the electromagnetic locking pin and the positioning pin hole can provide reliable circumferential limit for the upper and lower adjusting screws, preventing displacement due to high-frequency vibration during equipment operation. This improves the positioning and locking efficiency and operational convenience when changing the upper and lower rolls in sequence, ensures the alignment accuracy and roll gap stability after the upper and lower rolls are reset, and ensures the reliability of equipment operation and the dimensional accuracy of metal bar cutting.

[0010] Preferably, each of the multiple adjusting bolts is fitted with a pressure detection ring at the connection point between the bolt and the frame. Each of the multiple pressure detection rings is electrically connected to the control system. An annular guide sleeve, made of polytetrafluoroethylene (PTFE), is provided on the mating surface of each pressure detection ring and the adjusting bolt. This combination of pressure detection rings at the connection point between the adjusting bolt and the frame, PTFE annular guide sleeves on the mating surface of the pressure detection rings and the adjusting bolt, and the control system electrically connected to the pressure detection rings avoids problems such as the inability to promptly identify abnormal rolling pressure in the metal bar cutting and rolling device, pressure imbalance caused by roll wear leading to equipment damage or rolled material defects, and the efficiency of roll change preparation affected by bolt lifting and lowering jamming. During the rolling process, the pressure between the upper and lower rolls is transmitted to the adjusting bolt. The pressure detection ring can collect pressure data in real time and transmit it to the control system. When abnormal pressure fluctuations occur, the control system can quickly identify them and trigger an alarm, promptly reminding operators to check or replace the rolls. This prevents excessive equipment wear or out-of-tolerance roll dimensions caused by undetected pressure abnormalities during continuous operation. Simultaneously, the PTFE annular guide sleeve has an extremely low coefficient of friction, reducing resistance when the adjusting bolt rotates and rises, allowing the adjusting plate to smoothly move the upper mounting frame and upper rolls. This facilitates position adjustment before roll replacement and pressure calibration after roll replacement. Real-time monitoring and abnormal warning of rolling pressure are achieved, promptly indicating roll replacement needs, reducing production risks caused by roll wear, and improving the convenience of equipment adjustment and roll replacement preparation. This ensures the quality stability of metal bar cutting and rolling and the safety of equipment operation.

[0011] Preferably, the plurality of pressure detection rings include an outer ring and an inner ring. The outer ring is rigidly connected to the frame, and the inner ring is sleeved around the adjusting bolt. An annular rubber buffer pad is installed between the outer ring and the inner ring. This design of the pressure detection ring, consisting of an outer ring, an inner ring, and an annular rubber buffer pad, avoids false alarms caused by pressure data fluctuations due to vibration, as well as problems such as low detection accuracy due to rolling vibration interference, damage to the detection structure caused by long-term vibration, and wear at the mating point between the adjusting bolt and the detection ring in the metal bar cutting and rolling device. The outer ring of the pressure detection ring is rigidly connected to the frame, the inner ring is sleeved around the adjusting bolt, and the annular rubber buffer pad between them effectively absorbs the vibration generated during the rolling process. The high-frequency vibration transmitted by the device significantly reduces the impact of vibration on the pressure detection element. This avoids data jumps and misjudgments of pressure abnormalities caused by vibration, thus preventing unnecessary roll change alarms and achieving a false triggering effect. It also reduces the impact loss of vibration on the detection structure. At the same time, the rubber buffer pad can buffer the contact impact between the adjusting bolt and the inner ring when the adjusting bolt is raised and lowered. Combined with the friction reduction effect of the PTFE guide sleeve, it reduces the wear degree between the adjusting bolt and the inner ring. This improves the accuracy and stability of rolling pressure detection, ensuring that the control system only alarms and prompts roll change when there is a real pressure abnormality such as roll wear. It also extends the service life of the pressure detection ring and further ensures the quality stability of metal bar cutting and rolling and the reliability of equipment operation.

[0012] Preferably, both the upper and lower mounting slots are provided with guide positioning strips at their bottoms, and the upper and lower mounting frames are provided with corresponding guide grooves at their bottoms. The cross-section of the guide positioning strip is an isosceles trapezoid, and the length of the guide positioning strip is the same as the length of the guide groove. By providing guide positioning strips with isosceles trapezoidal cross-sections and lengths consistent with the guide grooves at the bottoms of the upper and lower mounting slots, and by providing corresponding guide grooves at the bottoms of the upper and lower mounting frames, the design avoids the problems of mounting frame sliding jamming and lateral displacement causing alignment difficulties during roll changing in the metal bar cutting and rolling device, as well as the problem of poor alignment accuracy between the upper and lower rolls after roll changing. The guide positioning strip and guide groove on the surface form a self-guiding and self-correcting cooperation. When changing rolls, the mounting frame slides along the positioning strip, and the trapezoidal inclined surface can automatically correct the lateral offset of the mounting frame. With the consistent length of both, the sliding path of the mounting frame is ensured to be accurate, avoiding the jamming and misalignment that are prone to occur in traditional straight guide structures, and greatly reducing the difficulty of manual alignment. At the same time, this structure provides a stable lateral limit for the mounting frame, which can accurately constrain the position of the mounting frame after changing rolls and prevent it from shifting. It improves the smoothness of the sliding and alignment efficiency of the mounting frame when changing rolls, ensures the centering accuracy of the upper and lower rolls, and thus ensures the dimensional accuracy of metal bar cutting and rolling and the stability of the equipment operation.

[0013] Preferably, multiple oil reservoirs are formed on the upper surface of each of the multiple guide positioning strips. These oil reservoirs are evenly distributed along the length of the guide positioning strips and are filled with solid grease. This design, with multiple oil reservoirs filled with solid grease evenly distributed along the length of the upper surface of the guide positioning strips, avoids the problems of slippage, excessive wear, and cumbersome maintenance caused by frequent manual lubrication during roll changing in the metal bar cutting and rolling device, which are often due to high frictional resistance between the guide positioning strips and guide grooves. The solid grease in the oil reservoirs can continuously supply the mating surfaces of the guide positioning strips and guide grooves during the sliding process of the mounting frame. Lubrication, aided by the guiding effect of the isosceles trapezoidal structure, ensures that the grease is evenly distributed on the contact surface, significantly reducing frictional resistance during relative movement. This avoids the problems of insufficient lubrication and accelerated component wear that often occur in traditional oil-free structures. Simultaneously, the long-lasting nature of solid grease reduces the frequency of manual lubrication, simplifying equipment maintenance. It also improves the smoothness and flexibility of the mounting frame during roll changes, extends the service life of the guide positioning strip and guide groove, ensures the accuracy and efficiency of the mounting frame alignment, and maintains the alignment precision of the upper and lower rolls, thus ensuring the stability and dimensional accuracy of the metal bar cutting and rolling device.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. This invention features multiple vertically oriented lifting grooves within the frame, with adjusting plates slidably connected within these grooves. An upper mounting groove is horizontally oriented on the adjusting plate, and a lower mounting groove is horizontally oriented at the lower end of the frame. An upper mounting frame and a lower mounting frame are slidably connected within the upper and lower mounting grooves, respectively. The control system drives the upper and lower adjusting screws via motors one and two, respectively, causing the upper and lower mounting frames to move laterally in sequence. This mechanized drive replaces the traditional manual pushing and positioning, significantly reducing the labor intensity of operators and effectively ensuring the roll changing efficiency of the metal bar cutting and rolling device.

[0016] 2. This invention features positioning slots on the inner walls of both the upper and lower mounting slots, and storage holes on both sides of both the upper and lower mounting frames. Positioning blocks are slidably connected within these storage holes, and return springs are installed within them. This combined design of positioning slots, storage holes, hemispherical positioning blocks, and return springs avoids problems such as mounting frame sliding alignment deviations, cumbersome pre-positioning, and axial movement during operation during roll changing in the metal bar cutting and rolling device. This ensures the roll changing efficiency of the metal bar cutting and rolling device and provides stable pre-positioning and anti-axial movement.

[0017] 3. This invention achieves real-time monitoring and early warning of rolling pressure by installing pressure detection rings at the connection points of multiple adjusting bolts and the frame; by combining the pressure detection rings installed at the connection points of the adjusting bolts and the frame, the PTFE annular guide sleeves on the mating surfaces of the pressure detection rings and the adjusting bolts, and the control system electrically connected to the pressure detection rings. This enables timely indication of roll replacement needs, reduces production risks caused by roll wear, improves the convenience of device adjustment and roll replacement preparation, and ensures the quality stability of metal bar cutting and rolling and the safety of equipment operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the metal bar cutting and rolling apparatus of the present invention;

[0019] Figure 2 This is a right view of the metal bar cutting and rolling apparatus of the present invention;

[0020] Figure 3 For the present invention Figure 2 Sectional view at point AA;

[0021] Figure 4 For the present invention Figure 2 Sectional view at point BB;

[0022] Figure 5 For the present invention Figure 4 Sectional view at CC;

[0023] Figure 6 For the present invention Figure 4 Sectional view at point DD;

[0024] Figure 7 For the present invention Figure 3 Sectional view at point E in the middle;

[0025] Figure 8 For the present invention Figure 5 Sectional view at point F

[0026] Figure 9 This is a diagram showing the state of the upper roll changing in the metal bar cutting and rolling apparatus of the present invention;

[0027] Figure 10 This is a diagram showing the state of the lower roll during roll changing in the metal bar cutting and rolling apparatus of the present invention.

[0028] In the diagram: 1. Frame; 101. Lifting slide; 102. Lower mounting slot; 103. Lower mounting frame; 2. Adjusting plate; 201. Upper mounting slot; 202. Upper mounting frame; 3. Adjusting bolt; 4. Upper roller; 5. Lower roller; 601. Motor No. 1; 602. Motor No. 2; 603. Upper adjusting screw; 604. Lower adjusting screw; 7. Control system; 801. Positioning slot; 802. Storage hole; 803. Positioning block; 804. Return spring; 805. Locking hook; 806. Locking handle; 807. Torsion spring; 808. Locking disc; 809. Positioning pin hole; 810. Electromagnetic locking pin; 901. Pressure detection ring; 902. Guide sleeve; 903. Outer ring; 904. Inner ring; 905. Buffer pad; 906. Guide positioning strip; 907. Guide slide; 908. Oil reservoir. Detailed Implementation

[0029] Please see Figures 1 to 10 This invention provides a metal bar cutting and rolling apparatus, the technical solution of which is as follows:

[0030] Please refer to a metal bar cutting and rolling apparatus. Figures 1 to 10The machine includes a frame 1, an upper roll 4, a lower roll 5, and a control system 7. Multiple lifting grooves 101 are vertically formed inside the frame 1, and adjusting plates 2 are slidably connected within these grooves. Multiple adjusting bolts 3 are vertically rotatably connected to the upper surface of the frame 1, and the lower ends of each adjusting bolt 3 are threadedly connected to the adjusting plates 2. Pressure detection rings 901 are fitted at the connection points between the adjusting bolts 3 and the frame 1, and these rings 901 are electrically connected to the control system 7. Annular guide sleeves 902, made of polytetrafluoroethylene, are provided on the mating surfaces of the pressure detection rings 901 and the adjusting bolts 3. Each pressure detection ring 901 includes an outer ring 903 and an inner ring 904. The outer ring 903 is rigidly connected to the frame 1, and the inner ring... 904 is sleeved around the outer circumference of the adjusting bolt 3. An annular rubber buffer pad 905 is installed between the outer ring 903 and the inner ring 904. An upper mounting groove 201 is horizontally opened on the adjusting plate 2, and a lower mounting groove 102 is horizontally opened at the lower end of the frame 1. An upper mounting bracket 202 and a lower mounting bracket 103 are slidably connected in the upper mounting groove 201 and the lower mounting groove 102, respectively. The upper roller 4 and the lower roller 5 are rotatably connected to the upper mounting bracket 202 and the lower mounting bracket 103, respectively. The control system 7 is installed on the frame 1. A first motor 601 is installed on the adjusting plate 2, and a second motor 602 is installed on the frame 1. Both the first motor 601 and the second motor 602 are electrically connected to the control system 7. An upper adjusting screw 603 is horizontally rotatably connected to the adjusting plate 2. The upper adjusting screw 603 is horizontally rotatably connected to the frame 1. A lower adjusting screw 604 is dynamically connected. The upper adjusting screw 603 and the lower adjusting screw 604 are coaxially connected to motor 601 (number one) and motor 602 (number two), respectively. The upper adjusting screw 603 and the lower adjusting screw 604 are threaded onto the upper mounting bracket 202 and the lower mounting bracket 103, respectively. Positioning slots 801 are provided on the inner walls of both the upper mounting slot 201 and the lower mounting slot 102. Storage holes 802 are provided on both sides of both the upper mounting bracket 202 and the lower mounting bracket 103. Positioning blocks 803 are slidably connected within each of the storage holes 802. The end of each positioning block 803 near the positioning slot 801 is a hemispherical structure. Return springs 804 are installed within each of the storage holes 802. The two ends of the return springs 804 are respectively connected to the bottom of the storage holes 802. The upper mounting bracket 202 and the lower mounting bracket 103 are connected to the positioning block 803. Locking hooks 805 are provided on the right end faces of both the upper mounting bracket 202 and the lower mounting bracket 103. Multiple locking hooks 805 are L-shaped. Locking handles 806 are rotatably connected to the corresponding positions of the multiple locking hooks 805 and the adjusting plate 2 and the frame 1. The locking handles 806 can be engaged within the locking hooks 805. Torsion springs 807 are provided between the multiple locking handles 806 and the adjusting plate 2 and the frame 1. Locking discs 808 are provided on the ends of the upper adjusting screw 603 and the lower adjusting screw 604 near the first motor 601 and the second motor 602, respectively. Multiple positioning pin holes 809 are evenly distributed around the circumference of the locking discs 808. Electromagnetic locking pins 810 are installed on both the adjusting plate 2 and the frame 1. Multiple electromagnetic locking pins 810 are electrically connected to the control system 7.Both the upper mounting groove 201 and the lower mounting groove 102 have guide positioning strips 906 at their bottoms. The upper mounting bracket 202 and the lower mounting bracket 103 have corresponding guide grooves 907 at their bottoms. The guide positioning strips 906 have isosceles trapezoidal cross-sections, and their lengths are the same as the guide grooves 907. Multiple oil reservoirs 908 are formed on the upper surfaces of the guide positioning strips 906, and these reservoirs are evenly distributed along the length of the guide positioning strips 906. The oil reservoirs 908 are filled with solid grease.

[0031] When working, please refer to Figures 1 to 10 After the operator turns on the control system 7, the equipment first enters the start-up and commissioning phase. The system automatically completes a full component status check; confirms that the power supply to motor 601 and motor 602 is on and without faults; checks whether the electromagnetic locking pin 810 is fully inserted into the positioning pin hole 809 of the upper adjusting screw 603 and the lower adjusting screw 604 locking disc 808, ensuring that the upper mounting bracket 202 and the lower mounting bracket 103 are in the initial locked state; the pressure detection ring 901 senses the initial pressure through the annular rubber buffer pad 905 between the outer ring 903 and the inner ring 904, and feeds it back to the control system 7 to verify that the pressure monitoring function is normal. At the same time, it confirms that the solid grease in the oil reservoir 908 of the guide positioning strip 906 is full and there is no missing or dried-up phenomenon; if the initial roll gap does not meet the rolling requirements, when the control system 7 adjusts the upper roll 4, it first controls the electromagnetic locking pin 810 on the adjusting plate 2 to retract, releasing the upper roll. The circumferential locking of the adjusting screw 603 is then activated, driving the first motor 601 to rotate the upper adjusting screw 603. The guide groove 907 at the bottom of the upper mounting bracket 202 slides along the isosceles trapezoidal guide positioning strip 906 in the upper mounting groove 201. Solid grease in the oil reservoir 908 reduces sliding resistance. The adjusting plate 2 moves up and down synchronously along the lifting groove 101 of the frame 1. The pressure detection ring 901 collects the pressure data transmitted by the adjusting bolt 3 in real time. The rubber buffer pad 905 absorbs the vibration during the adjustment process to avoid data fluctuations. When the pressure reaches the preset value corresponding to the target roll gap, the motor stops running, and the electromagnetic locking pin 810 is reinserted into the positioning pin hole 809 of the locking disc 808 to lock. The adjustment process of the lower roll 5 is the same, completed by the second motor 602, the lower adjusting screw 604, and the corresponding electromagnetic locking pin 810, ultimately ensuring that the alignment accuracy deviation between the upper roll 4 and the lower roll 5 is ≤0.1mm.

[0032] After commissioning, the equipment enters the normal rolling stage. High-temperature metal bars enter the device via the preceding conveying mechanism. The control system 7 drives the roll power assembly to rotate the upper roll 4 and lower roll 5 synchronously. The roll pass is used to pre-shape the bar. Then, the single bar is longitudinally cut into multiple billets of the same specification by the cutting structure. The cut billets are sent away by the subsequent conveying mechanism. During the rolling process, the pressure detection ring 901 continuously collects rolling pressure data and transmits it to the control system 7. The outer ring 903 is rigidly connected to the frame 1, and the inner ring 904 is adjusted slightly by the adjusting bolt 3. The deformation extrusion ring rubber buffer pad 905 absorbs high-frequency rolling vibrations to prevent false triggering of pressure signals. When the pressure exceeds the preset range, the control system 7 immediately triggers an alarm to prompt the operator to investigate. At the same time, the L-shaped locking hook 805 is tightly engaged with the locking handle 806 with torsion spring 807, and the electromagnetic locking pin 810 locks the adjusting screw to prevent rolling vibrations from causing the upper mounting frame 202 and lower mounting frame 103 to shift. The positioning block 803 is engaged in the positioning slot 801 under the action of the return spring 804, further enhancing the stability of the mounting frame.

[0033] When it is necessary to replace the rolls, the equipment enters the roll replacement stage and the upper and lower rolls 5 are replaced in sequence. When replacing the upper roll 4, the control system 7 first suspends the rolling operation and cuts off the roll power. Then, the electromagnetic locking pin 810 on the control adjustment plate 2 retracts, releasing the lock on the upper adjustment screw 603. The first motor 601 drives the upper adjustment screw 603 to rotate, and the upper mounting frame 202 slides along the guide positioning strip 906. The positioning block 803 is squeezed and the reset spring 804 is dislodged from the positioning slot 801 until the upper mounting frame 202 moves to the maintenance position. The positioning block 803 is then re-engaged into the corresponding slot to achieve pre-fixation. The operator then rotates the locking handle 806 on the adjustment plate 2. The torsion spring 807 is compressed, causing the handle to disengage from the L-shaped locking hook 805 of the upper mounting frame 202. After removing the old upper roll 4, the new upper roll 4 is installed into the upper mounting frame 202. The bearing housing of mounting bracket 202 is rotated in the reverse direction to lock the handle 806. The torsion spring 807 resets, causing the handle to engage with the locking hook 805. Then, the control system 7 drives motor 601 to rotate in the reverse direction. The upper mounting bracket 202 resets along the isosceles trapezoidal guide positioning strip 906. The trapezoidal structure self-corrects to ensure accurate alignment. When the pressure detection ring 901 feedbacks that the pressure reaches the preset value, the motor stops. The electromagnetic locking pin 810 is inserted into the positioning pin hole 809 of the locking disc 808 to complete the locking. The replacement process of the lower roll 5 is the same as that of the upper roll 4. The control system 7 unlocks the electromagnetic locking pin 810 of the lower adjusting screw 604. The lower mounting bracket 103 is slid to the maintenance position by motor 602. The operator unlocks the locking handle 806 to replace the lower roll 5 and then relocks it. Finally, the lower mounting bracket 103 is driven to reset. After the pressure detection is confirmed, the electromagnetic locking is completed.

[0034] When rolling operations are completed or the equipment needs to be paused, it enters the maintenance standby phase. During regular maintenance, operators check the guide positioning strip 906 and oil reservoir 908, replenish solid grease to ensure continuous lubrication of the sliding surfaces, retrieve historical data from the pressure detection ring 901 through the control system 7, and determine the roll replacement cycle based on the wear condition of the roll surface. At the same time, check the aging condition of the annular rubber buffer pad 905, and replace it in time if the elasticity is deteriorated to ensure the accuracy of pressure detection. When the equipment is idle for a long time, rotate the adjusting bolt 3 to drive the adjusting plate 2 to rise, moving the upper roll 4 away from the lower roll 5 to reduce the contact stress on the roll surface. All electromagnetic locking pins 810 are kept locked, and the power supply to motor 1 601 and motor 2 602 is cut off, leaving only the control system 7 with standby power to reduce energy consumption.

[0035] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. A metal bar cutting and rolling apparatus, characterized in that, Including frame (1), upper roll (4), lower roll (5) and control system (7), the frame (1) is opened in multiple lifting sliding slots (101), multiple the lifting sliding slots (101) are slidably connected with the adjusting plate (2), the upper end surface of frame (1) is rotatably connected with multiple adjusting bolts (3), the lower end of multiple adjusting bolts (3) is threadedly connected with adjusting plate (2), the adjusting plate (2) is horizontally provided with upper mounting groove (201), the lower end of frame (1) is horizontally provided with lower mounting groove (102), the upper mounting groove (201) and lower mounting groove (102) are slidably connected with upper mounting bracket (202) and lower mounting bracket (103) respectively, the upper roll (4) and lower roll (5) are rotatably connected on upper mounting bracket (202) and lower mounting bracket (103) respectively, the control system (7) is installed on frame (1), the adjusting plate (2) is provided with a motor (601), the frame (1) is provided with a motor (602), the motor (601) and motor (602) are electrically connected with control system (7), the adjusting plate (2) is rotatably connected with upper adjusting screw rod (603), the frame (1) is rotatably connected with lower adjusting screw rod (604), the upper adjusting screw rod (603) and lower adjusting screw rod (604) are coaxially connected with motor (601) and motor (602) respectively, and the upper adjusting screw rod (603) and lower adjusting screw rod (604) are threadedly connected on upper mounting bracket (202) and lower mounting bracket (103) respectively.

2. A metal rod slitting and rolling apparatus according to claim 1, characterized in that: The inner side wall of upper mounting groove (201) and lower mounting groove (102) is provided with positioning clamping groove (801), the both sides of upper mounting bracket (202) and lower mounting bracket (103) are provided with receiving hole (802), multiple positioning clamping blocks (803) are slidably connected in multiple receiving holes (802), one end of multiple positioning clamping blocks (803) close to positioning clamping groove (801) is hemispherical structure, reset spring (804) is installed in multiple receiving holes (802), and both ends of reset spring (804) are connected with receiving hole (802) bottom and positioning clamping block (803) respectively.

3. A metal rod slitting and rolling apparatus according to claim 2, characterized in that: The right end surface of upper mounting bracket (202) and lower mounting bracket (103) is provided with lock hook (805), multiple lock hooks (805) are L-shaped, multiple lock hooks (805) are rotatably connected with locking handle (806) on the corresponding position of adjusting plate (2) and frame (1), the locking handle (806) can be buckled in lock hook (805), and multiple locking handles (806) are provided with torsional spring (807) between adjusting plate (2) and frame (1).

4. A metal rod slitting and rolling apparatus according to claim 3, characterized in that: The upper adjusting screw (603) and the lower adjusting screw (604) are provided with locking discs (808) near one end of the first motor (601) and the second motor (602), a plurality of positioning pin holes (809) are uniformly distributed on the locking disc (808), the adjusting plate (2) and the rack (1) are provided with electromagnetic locking pins (810), and the plurality of electromagnetic locking pins (810) are electrically connected with the control system (7).

5. A slitting and rolling apparatus for a metal bar as defined in claim 1, wherein: A plurality of pressure detection rings (901) are arranged at the connection between the adjusting bolt (3) and the rack (1), the plurality of pressure detection rings (901) are electrically connected with the control system (7), and annular guide sleeves (902) are arranged on the cooperation surfaces of the plurality of pressure detection rings (901) and the adjusting bolt (3), and the guide sleeves (902) are made of polytetrafluoroethylene.

6. A metal rod slitting and rolling apparatus according to claim 5, wherein: The plurality of pressure detection rings (901) comprise an outer ring (903) and an inner ring (904), the outer ring (903) is rigidly connected with the rack (1), the inner ring (904) is sleeved on the outer periphery of the adjusting bolt (3), and an annular rubber buffer pad (905) is arranged between the outer ring (903) and the inner ring (904).

7. A metal rod slitting and rolling apparatus according to claim 1, wherein: The bottom of the upper mounting groove (201) and the bottom of the lower mounting groove (102) are provided with guide positioning strips (906), the bottom of the upper mounting frame (202) and the bottom of the lower mounting frame (103) are provided with corresponding guide sliding grooves (907), the cross section of the guide positioning strip (906) is isosceles trapezoidal, and the length of the guide positioning strip (906) is consistent with the length of the guide sliding groove (907).

8. A metal rod slitting and rolling apparatus according to claim 7, characterized in that: A plurality of oil storage grooves (908) are arranged on the upper end surface of the guide positioning strip (906), the plurality of oil storage grooves (908) are equidistantly distributed along the length direction of the guide positioning strip (906), and the plurality of oil storage grooves (908) are filled with solid lubricating grease.

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