Rapid and automatic roller replacing and turning device

Abstract

The invention discloses a quick and automatic roller changing and turning device, and relates to the field of roller changing of leveling machines. Comprising a transmission device, a leveling machine and a roll changing trolley, the transmission device is composed of a driving motor, a coupler, a speed reducer, a sliding clutch connector and a shifting fork device, the shifting fork device is composed of an air cylinder fork head, a shifting connecting rod, a synchronizing shaft and a clutch pushing connecting rod, the leveling machine comprises a leveling machine frame and a roller system, the leveling roller system is fixed to the leveling machine frame and comprises an upper roller system and a lower roller system, and the upper roller system and the lower roller system are fixed to the leveling machine frame. The upper roller system is connected with the upper base through eight downward pressing oil cylinders and an upper roller frame T-shaped groove structure. The transmission device, the leveling machine and the roll changing trolley are integrated, all the components work cooperatively in the roll changing process, and automatic changing and online cleaning of the roll system are achieved. The transmission device controls power transmission, the leveling machine provides a stable working platform, and the roll changing trolley is responsible for roll system transportation and station switching.

Description

Technical Field

[0001] The invention relates to the field of roller replacement for a leveling machine, and in particular to a fast and automatic roller replacement and roller turning device. Background Art

[0002] With the development of industry, especially the continuous improvement of sheet quality requirements in the automotive industry, the role of leveling machines in sheet processing is becoming more and more important. The original sheet often has surface defects, such as oil film and dust. These impurities will remain on the surface of the leveling roller during the straightening process. Long-term accumulation will not only scratch the subsequent straightened sheet, affecting the surface quality of the sheet, but also reduce the service life of the leveling roller and the working efficiency of the leveling machine. Therefore, regular cleaning and maintenance of the roller system of the leveling machine is a key link to ensure the quality of sheet processing.

[0003] The traditional straightening machine structure has many inconveniences when cleaning the roller system. It usually takes a lot of manpower and time to disassemble and install the roller system, which is extremely inefficient and cannot meet the needs of efficient production in modern industry. Although some automatic roller changing devices have been developed, such as the rapid automatic roller changing device provided by patent 20222226226348.8, which realizes automatic replacement of the roller system, has a high degree of automation and takes less time, the device has the problem that the roller system needs to be lifted to a designated position after it is separated from the leveling machine before the roller box can be opened for cleaning using the roller turning device. For some companies with limited site space, this cannot meet their requirements for site utilization and cleaning efficiency, which limits its application in actual production. Summary of the invention

[0004] The object of the present invention is to provide a fast and automatic roller changing and roller turning device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fast and automatic roller changing and roller turning device, comprising: a transmission device, a leveling machine and a roller changing trolley; the transmission device is composed of a driving motor, a coupling, a reducer, a sliding clutch joint and a fork device, the fork device is composed of a cylinder fork head, a shifting connecting rod, a synchronous shaft, and a clutch pushing connecting rod, the driving motor is connected to the reducer through a coupling, the sliding clutch joint connected to the output shaft of the reducer is connected to the clutch on the output shaft of the distribution box, the sliding clutch joint on the output shaft of the reducer is provided with an annular guide groove structure, and the cylinder fork head drives the fork device to realize the connection and separation of the sliding clutch joint on the reducer and the clutch on the distribution box; The leveling machine includes a leveling frame and a roller system. The leveling frame is fixed with a leveling roller system. The roller system includes an upper roller system and a lower roller system. The upper roller system is connected to the upper base through 8 downward pressure oil cylinders and the upper roller frame T-slot structure. The lower roller frame of the lower roller system is provided with a distribution box mounting surface. The distribution box is fixed to the lower roller frame by bolts and is connected to the roller system by a ball cage coupling. The roller changing trolley is fixed to the leveling frame of the leveling machine by driving the upper push cylinder to drive the pinion. The roller changing trolley includes an upper frame assembly and a lower base assembly. The upper frame assembly is composed of a frame with a traveling motor, a screw motor and a ball screw. The hook installed on the ball screw is connected to the roller system and drags the roller system to the roller changing trolley through the slide seat. The downward pressing cylinder of the leveling machine contracts to drive the roller system to descend, and the hook is automatically lifted and returned to its original position under the drive of the ball screw. The lower base assembly is connected to the upper frame assembly through a linear guide rail, and the gear rack mechanism is driven by the feed motor to realize the switching of the double workstations of the trolley. A roller structure is provided at the bottom of the machine base of the lower base assembly, which is driven by the traveling motor to complete the opening and closing of the trolley workstation. The reduction motor installed in the middle of the upper frame assembly on both sides drives the pressure arm to connect with the upper roller system to complete the opening of the roller box.

[0006] Furthermore, the toggle connecting rod is connected to the bearing through a rotating pin, the bearing is arranged on a support, and the support is fixed to the transmission frame by screws. The cooperation between the rotating pin, the toggle connecting rod and the bearing adopts a high-precision clearance cooperation to ensure that the toggle connecting rod has smaller friction and higher rotation accuracy during the rotation process, and a reinforcing rib structure is provided at the connection between the support and the transmission frame.

[0007] Furthermore, the downward pressure cylinders through which the upper roller system of the leveling machine passes are evenly distributed around the upper roller frame, and the stroke of each downward pressure cylinder can be adjusted independently. The downward pressure cylinder adopts a high-precision hydraulic control system, which can accurately control the pressure and stroke of the downward pressure cylinder. A buffer device is provided at the connection between the piston rod of the downward pressure cylinder and the upper roller system.

[0008] Furthermore, a sealing structure is provided between the lower roller frame of the lower roller system and the distribution box. The sealing structure is composed of a plurality of sealing materials, including a rubber sealing pad and a metal sealing ring. The sealing structure is also provided with a sealing detection device, which can monitor the sealing effect in real time. When the sealing performance decreases, an alarm signal is issued to remind the operator to replace the sealing component in time. Furthermore, a lubrication device is provided on the linear guide rail between the upper frame assembly and the lower base assembly of the roller changing trolley. The lubrication device includes an oil storage container, an oil pump, an oil pipe and an oil spray nozzle, which can provide lubricant to the guide rail in a timely and quantitative manner. A liquid level sensor is provided in the oil storage container for monitoring the liquid level of the lubricant and sending a replenishment signal when the liquid level is too low. The position and angle of the oil spray nozzle are adjustable to ensure that the lubricant can be evenly sprayed on the surface of the guide rail to reduce guide rail wear.

[0009] Furthermore, an adjustable clamping structure is provided at the portion where the hook is connected to the roller system. The clamping structure includes a clamping bolt, a clamping block and a clamping spring, and can be adjusted according to roller systems of different diameters. The clamping bolt is used to adjust the distance between the clamping blocks, and the clamping spring provides clamping force to ensure a firm and reliable connection. The clamping structure is also provided with a clamping force detection device that can monitor the size of the clamping force in real time, and send an adjustment signal when the clamping force is insufficient or excessive, thereby ensuring the stability of the connection between the hook and the roller system.

[0010] Furthermore, buffer devices are provided at both ends of the ball screw, and the buffer devices include elastic buffer pads and limit blocks to prevent the impact force generated by the stroke limit during the driving process from causing damage to the screw and related components. The elastic buffer pads are made of highly elastic rubber material, and the limit blocks are used to limit the stroke range of the ball screw to avoid damage to the ball screw due to excessive extension and contraction.

[0011] Furthermore, a rotation limit structure is provided at the position where the pressure arm is connected to the upper roller system. The rotation limit structure includes a limit pin and a limit groove, which limit the rotation angle range of the pressure arm. The limit pin is fixed on the pressure arm, and the limit groove is provided at the position connected to the upper roller system. The rotation angle of the pressure arm is limited by sliding of the limit pin in the limit groove.

[0012] Furthermore, the reducer in the transmission device adopts a planetary reducer, and a planetary gear train is arranged inside the planetary reducer. The planetary gear train is made of high-strength alloy steel material. The planetary reducer is also provided with a cooling system, which includes a heat sink, a cooling fan and a temperature control device. The heat sink is made of a metal material with a high thermal conductivity. The cooling fan automatically adjusts the speed according to the feedback signal of the temperature sensor to ensure that the reducer operates within an appropriate temperature range; the temperature control device monitors the temperature of the reducer in real time, and when the temperature exceeds the set threshold, the cooling system is started to cool down.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention constructs a complete rapid automatic roll changing and roll turning system by integrating a transmission device, a leveling machine and a roll changing trolley. During the roll changing process, the various components work together to realize the automatic replacement and online cleaning of the roll system. The transmission device controls the power transmission, the leveling machine provides a stable working platform, and the roll changing trolley is responsible for the transportation of the roll system and the station switching. This collaborative working mode avoids the tedious process of manual disassembly and installation of the roll system in the traditional straightening machine structure, greatly improves the cleaning efficiency, and meets the needs of efficient production in modern industry.

[0014] After the roller system of the present invention is separated from the leveling machine, it does not need to be hoisted to a designated location for cleaning, and the operation can be completed directly using the roller turning device on the roller changing trolley. This is due to the unique design of the roller changing trolley, the connection method between the roller changing trolley and the leveling machine frame, and its own structural layout, so that the roller system can be cleaned in situ, effectively saving site space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic layout diagram of the present invention; Figure 2 It is a structural diagram of the transmission device of the present invention; Figure 3 It is a structural diagram of the fork device of the present invention; Figure 4 It is a structural diagram of the leveling machine of the present invention; Figure 5 It is a structural diagram of the roller changing trolley of the present invention; Figure 6 It is a structural diagram of the roller trolley of the present invention.

[0016] In the figure: 1. Transmission device; 2. Leveling machine; 3. Roller changing trolley; 4. Transmission frame; 5. Drive motor; 6. Coupling; 7. Reducer; 8. Sliding clutch joint; 9. Cylinder fork; 10. Toggle connecting rod; 11. Synchronous shaft; 12. Clutch push connecting rod; 13. Rotating pin shaft; 14. Bearing; 15. Support; 16. Upper base; 17. Lower pressure cylinder; 18. Upper roller system; 19. Lower roller system; 20. Upper push cylinder; 21. Leveling frame; 22. Ball cage coupling; 23. Distribution box; 24. Clutch; 25. Travel motor; 26. Roller; 27. Feed motor; 28. Screw motor; 29. ​​Ball screw; 30. Hook; 31. Sliding seat; 32. Reducer motor; 33. Press arm. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-6 The present invention provides a technical solution: a fast automatic roller changing and roller turning device mainly consists of three main parts: a transmission device 1, a leveling machine 2 and a roller changing trolley 3. The specific structure and working principle of each part will be introduced in detail below, as well as how they work together to achieve the function of fast automatic roller changing and roller turning.

[0019] The drive motor 5 in the transmission device 1 adopts a three-phase asynchronous motor with appropriate power, which can provide sufficient power to drive the operation of the entire device; the output shaft of the drive motor 5 is connected to the input shaft of the reducer 7 through the coupling 6, and the coupling 6 adopts an elastic coupling, which can compensate for the possible shaft misalignment problem between the drive motor 5 and the reducer 7 while transmitting torque, thereby ensuring the smoothness of power transmission.

[0020] The reducer 7 adopts a planetary reducer, and its internal planetary gear system consists of a sun gear, planetary gears and an inner gear ring; the planetary gears are evenly distributed around the sun gear and mesh with the sun gear and the inner gear ring; the planetary gear system is made of high-quality alloy steel materials, such as chromium-molybdenum alloy steel, which has been precisely processed and heat-treated and has high strength, good wear resistance and impact resistance.

[0021] The output shaft of the reducer 7 is externally connected to a sliding clutch joint 8, and the sliding clutch joint 8 is connected to a clutch 24 on an output shaft of a distribution box 23; the sliding clutch joint 8 on the output shaft of the reducer 7 is provided with an annular guide groove structure; the clutch 8 and the clutch 24 adopt friction clutches, and realize connection and separation through the action of friction force, thereby controlling the transmission of power.

[0022] The shift fork device is composed of a cylinder fork head 9, a shifting connecting rod 10, a synchronous shaft 11 and a clutch pushing connecting rod 12. The cylinder fork head 9 is connected to the piston rod of the cylinder. When the cylinder is ventilated, the piston rod pushes the cylinder fork head 9 to move. The cylinder fork head 9 is connected to the shifting connecting rod 10 through a pin shaft. The shifting connecting rod 10 is connected to the bearing 14 through a rotating pin shaft 13. The bearing 14 is arranged on a support 15. The function of the support 15 is to provide a supporting structure. The support 15 is fixed to the transmission frame 4 by screws. A high-precision clearance fit is adopted between the rotating pin 13 and the toggle connecting rod 10 and the bearing 14. Generally, the clearance is controlled between 0.02 and 0.05 mm to ensure that the toggle connecting rod 10 has less friction and higher rotation accuracy during the rotation process. A reinforcing rib structure is provided at the connection portion between the support 15 and the transmission frame 4. The thickness of the reinforcing rib is generally 3 to 5 mm, and the width is reasonably determined according to the size of the support 15, usually 1 / 3 to 1 / 2 of the width of the support 15, to enhance the stability of the support 15 when it is subjected to the driving force of the fork device.

[0023] The synchronous shaft 11 is connected to the toggle link 10 through a key. When the toggle link 10 moves, the synchronous shaft 11 drives other toggle links 10 to move synchronously, ensuring the consistency of the movements of multiple fork devices. One end of the clutch push link 12 is connected to the toggle link 10 through a pin shaft, and the other end is connected to the moving part of the sliding clutch joint 8. When the toggle link 10 moves, the clutch push link 12 pushes the sliding clutch joint 8 to move on the output shaft of the reducer 7, realizing the connection and separation of the sliding clutch joint 8 and the clutch 24.

[0024] When the driving motor 5 is started, the output shaft of the driving motor 5 transmits power to the input shaft of the reducer 7 through the coupling 6; the reducer 7 reduces speed and increases torque on the input power, and then transmits the power to the sliding clutch joint 8 through the output shaft; when the sliding clutch joint 8 is connected to the clutch 24, the power is transmitted to the distribution box 23 through the clutch 24, and then the distribution box 23 distributes the power to corresponding components, such as the roller system of the leveling machine 2.

[0025] When the roller system needs to be replaced, the cylinder 9 is ventilated, the piston rod pushes the cylinder fork 9 to move, and the cylinder fork 9 drives the toggle connecting rod 10 to move; the toggle connecting rod 10 rotates on the bearing 14 by rotating the pin shaft 13, and at the same time drives other toggle connecting rods 10 to move synchronously through the synchronization shaft 11; the toggle connecting rod 10 pushes the sliding clutch joint 8 to move on the output shaft of the reducer 7 through the clutch pushing connecting rod 12, so that the sliding clutch joint 8 is disengaged from the clutch 24, thereby cutting off the path for power transmission to the roller system of the leveling machine 2, so as to perform the roller changing operation; when the roller changing is completed, the cylinder 9 is ventilated in the reverse direction, and the piston rod drives the cylinder fork 9 to move in the reverse direction. Through the above reverse process, the sliding clutch joint 8 is reconnected with the clutch 24 to restore power transmission.

[0026] The frame of the leveling machine 2 includes a leveling frame 21, which is welded with high-strength steel. The structural design of the frame must ensure sufficient strength and rigidity to withstand the weight of the roller system and the pressure during operation.

[0027] The roller system of the leveling machine 2 includes an upper roller system 18 and a lower roller system 19. The upper roller system 18 is connected to the leveling machine frame 21 through 17 downward pressure cylinders 17 and the T-slot structure of the upper roller frame. The downward pressure cylinders 17 are evenly distributed around the upper roller frame, and the stroke of each downward pressure cylinder 17 can be adjusted independently. The downward pressure cylinder 17 adopts a high-precision hydraulic control system, which includes components such as a hydraulic pump, a hydraulic valve, a hydraulic cylinder and a sensor; the hydraulic pump provides hydraulic oil to the downward pressure cylinder 17, and the hydraulic valve controls the flow and direction of the hydraulic oil. The hydraulic cylinder is the main part of the downward pressure cylinder 17, and the sensor is used to monitor the downward pressure cylinder 17, and is used to monitor the parameters such as the pressure and stroke of the downward pressure cylinder 17; each roller of the upper roller system 18 is made of high-quality steel, such as 45 steel, and is quenched and tempered to improve the hardness and wear resistance of the roller.

[0028] The lower roller frame of the lower roller system 19 is provided with a distribution box 23 mounting surface, and the transmission box is fixed to the lower roller frame by bolts, and the left and right positions are adjusted by square head set screws to ensure the connection with the sliding clutch joint 8 on the reducer 7. The rollers of the lower roller system 19 are also made of high-quality steel and undergo corresponding heat treatment to improve their performance.

[0029] A sealing structure is provided between the lower roller frame of the lower roller system 19 and the distribution box 23; the sealing structure is composed of a plurality of layers of sealing materials, including a rubber sealing pad and a metal sealing ring, the rubber sealing pad is made of an oil-resistant and aging-resistant rubber material, such as nitrile rubber, and its thickness is generally 3-5 mm; the metal sealing ring is made of a stainless steel material, such as 304 stainless steel, and its thickness is generally 2-3 mm; the sealing structure is also provided with a sealing detection device, which is composed of a pressure sensor and a controller; the pressure sensor is installed inside the sealing structure to monitor the pressure changes inside the sealing structure, and when the sealing performance decreases, the pressure sensor detects the pressure change and transmits the signal to the controller, and the controller sends an alarm signal to remind the operator to replace the sealing components in time.

[0030] When the plate enters the leveling machine 2, the upper roller system 18 and the lower roller system 19 level the plate. The upper roller system 18 can adjust the position of the upper roller system 18 according to the thickness and material of the plate through the adjustment of the downward pressure cylinder 17, so that the gap between the upper roller system 18 and the lower roller system 19 adapts to the thickness of the plate. At the same time, the upper roller system 18 and the lower roller system 19 rotate under the drive of the motor to level the plate. During the leveling process, the roller surfaces of the upper roller system 18 and the lower roller system 19 contact the plate, and the plate is leveled by friction.

[0031] The sealing structure between the roller frame under the lower roller system 19 and the distribution box 23 prevents dust and impurities from entering the transmission connection part during operation. The rubber sealing pad and the metal sealing ring fit tightly to prevent dust and impurities from entering. The sealing detection device monitors the sealing effect in real time. When the sealing performance decreases, an alarm signal is issued in time to ensure the effectiveness of the sealing structure, thereby ensuring the transmission efficiency and the service life of the equipment.

[0032] The upper frame assembly of the roller changing trolley 3 is composed of a frame with a travel motor 25, a screw motor 28 and a ball screw 29. The hook 30 is connected to the roller system and drags the roller system to the roller changing trolley. The travel motor 25 is used to drive the roller 26 to move the trolley to the working position. The screw motor 28 is used to drive the ball screw 29. The ball screw 29 adopts a high-precision ball screw, and its accuracy level is generally C7-C10. The pitch is determined according to actual needs and is generally 5-10mm. An adjustable clamping structure is provided at the part where the hook 30 is connected to the roller system. The clamping structure includes a clamping bolt, a clamping block and a clamping spring. The clamping bolt is used to adjust the distance between the clamping blocks, and the clamping spring provides the clamping force. The clamping structure is also provided with a clamping force detection device, which is composed of a pressure sensor and a controller. The pressure sensor is used to monitor the size of the clamping force. When the clamping force is insufficient or too early, when the clamping force is insufficient or too large, the controller sends an adjustment signal to ensure the stability of the connection between the hook 30 and the roller system.

[0033] The lower base assembly is connected to the upper frame assembly through a linear guide rail, and the gear rack mechanism is driven by the feed motor 27 to realize the switching of the double working positions of the trolley. The linear guide rail adopts a high-precision linear guide rail, and its accuracy level is generally H level. The length of the linear guide rail is determined according to the size of the trolley and the working needs. A roller 26 structure is provided at the bottom of the base of the lower base assembly, and the driving of the trolley position is completed by the travel motor 25. The roller 26 is made of high-performance rubber material, such as styrene-butadiene rubber, and its surface is provided with anti-skid patterns. The anti-skid patterns adopt special texture designs, such as herringbone or zigzag, to enhance the contact area and friction between the roller 26 and the ground. A shock absorbing device is provided inside the roller 26, and the shock absorbing device includes an elastic element and a damping element. The elastic element is made of highly elastic rubber or spring material, and the damping element is used to control the vibration amplitude and frequency of the elastic element to avoid resonance and improve the driving stability of the trolley.

[0034] The roller turning device is driven by a reduction motor 32, which is connected to the upper roller system 18 through the pressure arm 33 to complete the opening of the roller box, so as to complete the cleaning of the roller system. The reduction motor 32 adopts a reduction motor of appropriate power, which can provide sufficient power to drive the pressure arm 33 to rotate. The part where the pressure arm 33 is connected to the upper roller system 18 is provided with a rotation limit structure, which includes a limit pin and a limit slot. The limit pin is fixed on the pressure arm 33, and the limit slot is set at the part directly connected to the upper roller system 18. The limit pin in the limit slot gives this problem The rotation angle range of the pressing arm 33 is limited by the sliding of the limiting pin in the limiting groove, thereby ensuring the accuracy and safety of the roller box opening action.

[0035] When the roller system needs to be replaced, the roller-changing trolley 3 is driven by the travel motor 25 and moves to the working position through the roller 26. At this time, the hook 30 is connected to the pin on the lower roller surface frame of the leveling machine 2 by touching. Then, the screw motor 28 is started to drive the ball screw 29 to rotate, and the ball screw 29 drives the slide to drag the roller system to the corresponding position. During the dragging process, the clamping structure adjusts the distance between the clamping blocks through the clamping bolts, the clamping spring provides the clamping force, and the clamping force detection device monitors the clamping force in real time to ensure that the hook 30 is firmly and reliably connected to the roller system.

[0036] When the roller system is dragged to the corresponding position, the feed motor 27 is started to drive the gear rack mechanism to move, realizing the switching of the double-station of the trolley. The slide with the spare roller system is moved to the corresponding position, and then the travel motor 25 drives the roller 26 to drive the trolley to the side of the leveling machine 2, preparing to install the spare roller system into the leveling machine 2.

[0037] When the roller system needs to be cleaned, the reduction motor 32 is started to drive the pressing arm 33 to rotate. The pressing arm 33 limits the rotation angle by sliding the limiting pin of the rotation limiting structure in the limiting groove, so that the pressing arm 33 accurately rotates to a specific and different angle to open the roller box, thereby completing the roller system cleaning.

[0038] Before changing the roll, the downward pressure cylinder 17 is driven to make the upper roll system 18 fall on the lower roll system 19. At the same time, the cylinder 9 in the transmission device 1 works to drive the bearing 14 to move through the fork device, so that the sliding clutch joint 8 is disengaged from the clutch 24. In the roll changing trolley 3, the trolley drives the roller 26 driven by the travel motor 25 to move the trolley to the working position. At this time, the hook 30 is connected with the pin shaft on the lower roll surface frame of the leveling machine 2 by touching.

[0039] After the trolley runs to the working position, the upward push cylinder 20 drives the pin shaft to connect with the ear hole on the trolley frame to ensure that the trolley is fixed in position to prevent the trolley from shifting during the dragging process. At this time, the screw motor 28 works to drive the slide to drag the roller system to the corresponding position through the ball screw 29. After the roller system is dragged to the corresponding position, the upward push cylinder 20 works to restore the original position and the feed motor 27 drives the upper frame of the trolley through the gear rack structure to switch the working position, and the slide with the spare roller system is moved to the corresponding position. The upward push cylinder 20 works again and drives the motor to move the spare roller system into the leveling machine 2 through the dragging device. The downward pressure cylinder 17 of the leveling machine 2 works to drive the roller system to descend so that the hook 30 is disengaged from the roller system, and the dragging device returns to its original position.

[0040] The lower pressure cylinder 17 works to lock the upper roller system 18, and returns to the original position to complete the roller changing action. Finally, the pressure arm 33 is driven by the reduction motor 32 to rotate to a specific position, and the roller system cleaning is completed manually.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fast and automatic roller changing and roller turning device, comprising: A transmission device (1), a leveling machine (2) and a roller changing trolley (3); characterized in that the transmission device (1) is composed of a driving motor (5), a coupling (6), a reducer (7), a sliding clutch joint (8) and a fork device; the fork device is composed of a cylinder fork head (9), a shifting connecting rod (10), a synchronous shaft (11) and a clutch pushing connecting rod (12); the driving motor (5) is connected to the reducer (7) through the coupling (6); the sliding clutch joint (8) connected to the output shaft of the reducer (7) is connected to the clutch (24) on the output shaft of the distribution box (23); the sliding clutch joint (8) on the output shaft of the reducer (7) is provided with an annular guide groove structure; the cylinder fork head (9) drives the fork device to realize the connection and separation of the sliding clutch joint (8) on the reducer (7) and the clutch (24) on the distribution box (23); The leveling machine (2) comprises a leveling frame (21) and a roller system. The leveling frame (21) is fixed with a leveling roller system. The roller system comprises an upper roller system (18) and a lower roller system (19). The upper roller system (18) is connected to an upper base (16) via eight downward pressure oil cylinders (17) and an upper roller frame T-slot structure. The lower roller frame of the lower roller system (19) is provided with a distribution box (23) mounting surface. The distribution box (23) is fixed to the lower roller frame via bolts and is connected to the roller system via a ball cage coupling (22). The roller changing trolley (3) is fixed to the leveling frame (21) of the leveling machine (2) by a pin driven by an upward push cylinder (20). The roller changing trolley (3) comprises an upper frame assembly and a lower base assembly. The upper frame assembly is composed of a frame with a travel motor (25), a screw motor (28) and a ball screw (29). The hook (30) installed on the ball screw (29) is connected to the roller system and drags the roller system to the roller changing trolley through the slide seat (31). The downward pressure cylinder (17) of the leveling machine (2) contracts to drive the roller system to descend. The hook (30) is automatically lifted and returned to its original position under the drive of the ball screw (29). The lower base assembly is connected to the upper frame assembly through a linear guide rail. The feed motor (27) drives the gear rack mechanism to realize the switching of the double working positions of the trolley. The bottom of the base of the lower base assembly is provided with a roller (26) structure, which is driven by the travel motor (25) to complete the opening and closing of the trolley working position. The reduction motor (32) installed in the middle of the upper frame assembly on both sides drives the pressure arm (33) to connect with the upper roller system (18) to complete the opening action of the roller box.

2. A fast and automatic roller changing and roller turning device according to claim 1, characterized in that: The toggle connecting rod (10) is connected to the bearing (14) via a rotating pin (13); the bearing (14) is arranged on a support (15); and the support (15) is fixed to the transmission frame (4) via screws; the rotation pin (13), the toggle connecting rod (10) and the bearing (14) are matched with each other using a high-precision clearance match, thereby ensuring that the toggle connecting rod (10) has a small friction force and a high rotation accuracy during the rotation process; and a reinforcing rib structure is provided at the connection portion between the support (15) and the transmission frame (4).

3. A fast and automatic roller changing and roller turning device according to claim 2, characterized in that: The downward pressure cylinders (17) through which the upper roller system (18) of the leveling machine (2) passes are evenly distributed around the upper roller frame, and the stroke of each downward pressure cylinder (17) can be adjusted independently. The downward pressure cylinder (17) adopts a high-precision hydraulic control system, which can accurately control the pressure and stroke of the downward pressure cylinder (17). A buffer device is provided at the connection between the piston rod of the downward pressure cylinder (17) and the upper roller system (18).

4. The rapid automatic roller changing and roller turning device according to claim 3 is characterized in that: A sealing structure is provided between the lower roller frame of the lower roller system (19) and the distribution box (23). The sealing structure is composed of a plurality of sealing materials, including a rubber sealing pad and a metal sealing ring. The sealing structure is also provided with a sealing detection device, which can monitor the sealing effect in real time and send out an alarm signal when the sealing performance decreases, reminding the operator to replace the sealing component in time.

5. The rapid automatic roller changing and roller turning device according to claim 1 is characterized in that: The linear guide rail between the upper frame assembly and the lower base assembly of the roller-changing trolley (3) is provided with a lubricating device, which comprises an oil storage container, an oil pump, an oil pipe and an oil spray nozzle, and is capable of providing lubricant to the guide rail in a timely and quantitative manner; a liquid level sensor is provided in the oil storage container, which is used to monitor the liquid level of the lubricant and send a replenishment signal when the liquid level is too low; the position and angle of the oil spray nozzle are adjustable, so as to ensure that the lubricant can be evenly sprayed on the surface of the guide rail, thereby reducing the wear of the guide rail.

6. A fast and automatic roller changing and roller turning device according to claim 4, characterized in that: An adjustable clamping structure is provided at the portion where the hook (30) is connected to the roller system. The clamping structure comprises a clamping bolt, a clamping block and a clamping spring, and can be adjusted according to roller systems of different diameters. The clamping bolt is used to adjust the distance between the clamping blocks, and the clamping spring provides a clamping force to ensure a firm and reliable connection. The clamping structure is also provided with a clamping force detection device, which can monitor the magnitude of the clamping force in real time and send an adjustment signal when the clamping force is insufficient or excessive, thereby ensuring the stability of the connection between the hook (30) and the roller system.

7. The rapid automatic roller changing and roller turning device according to claim 5 is characterized in that: Buffer devices are provided at both ends of the ball screw (29), and the buffer devices include elastic buffer pads and limit blocks to prevent the screw and related components from being damaged by impact force generated by the stroke limit during the driving process. The elastic buffer pads are made of highly elastic rubber material, and the limit blocks are used to limit the stroke range of the ball screw (29) to prevent the ball screw (29) from being damaged due to excessive expansion and contraction.

8. The rapid automatic roller changing and roller turning device according to claim 4 is characterized in that: A rotation limiting structure is provided at a portion where the pressure arm (33) is connected to the upper roller system (18), wherein the rotation limiting structure comprises a limiting pin and a limiting groove, and limits the rotation angle range of the pressure arm (33); the limiting pin is fixed on the pressure arm (33), and the limiting groove is provided at a portion where the pressure arm (33) is connected to the upper roller system (18); the rotation angle of the pressure arm (33) is limited by sliding of the limiting pin in the limiting groove.

9. The rapid automatic roller changing and roller turning device according to claim 6, characterized in that: The reducer (7) in the transmission device (1) is a planetary reducer, which has a planetary gear train inside. The planetary gear train is made of high-strength alloy steel. The planetary reducer is also provided with a cooling system, which includes a heat sink, a cooling fan and a temperature control device. The heat sink is made of a metal material with a high thermal conductivity. The cooling fan automatically adjusts the speed according to the feedback signal of the temperature sensor to ensure that the reducer operates within an appropriate temperature range. The temperature control device monitors the temperature of the reducer in real time. When the temperature exceeds a set threshold, the cooling system is started to cool down.

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