Energy-saving hot rolling roller

Abstract

The present application relates to the technical field of non-woven fabric hot rolling roller, in particular to an energy-saving type hot rolling roller, which comprises a rack, a roller cylinder rotatably installed on the rack, a first support and a second support fixedly installed on the rack, and the first support and the second support are respectively located on both sides of the roller cylinder; the hot rolling roller further comprises a heating device and a control device; the heating device comprises an oil pipe, and the oil pipe comprises a main pipe and an extension pipe; the main pipe is installed on the first support, and the extension pipe is in sliding fit with the main pipe; an annular piston is slidably installed in the main pipe; the control device comprises an extension control assembly and a pushing assembly; the extension control assembly is arranged in the main pipe; and the pushing assembly is arranged in the main pipe. The present application solves the problem of poor flexibility of the machining width adjustment of the existing hot rolling roller, and realizes two-stage stepless adjustment through the cooperation of the main pipe, the extension pipe and the annular piston, so that the adjustment of the oil length is completely completed in the interior of the hot rolling pipe, the equipment width is avoided from being affected, and the portability of the equipment installation is improved.

Description

Technical Field

[0001] This invention relates to the field of nonwoven fabric hot rolling roll technology, specifically to an energy-saving hot rolling roll. Background Technology

[0002] Nonwoven fabric, also known as non-woven cloth, needle-punched cotton, needle-punched nonwoven fabric, etc., is made of polyester fiber and is produced through a needle-punching process, allowing for different thicknesses, feels, and hardnesses. In the production of nonwoven fabric, the fiber web is compressed using hot rollers to make it denser. However, existing hot rollers cannot flexibly adjust their operating temperature during operation, and their heating width is fixed. This leads to insufficient heating areas or wasted heat when processing nonwoven fabrics of different widths.

[0003] To address this, Chinese patent CN113005636B discloses a nonwoven fabric hot rolling roll with adjustable regional temperature. Through the cooperation of the outer and inner cylinders, and the cooperation of the inner and outer cylinders, an annular space is formed in the area outside the hot rolling roll. This allows high-temperature oil to flow between the outer and inner cylinders, entering through the oil inlet and returning through the oil return hole, forming an oil path. Furthermore, under the action of the separating ring, the space between the outer and inner cylinders is divided into three identical sections, facilitating segmented temperature control of the hot rolling roll. Three oil return pipes are provided, each connecting to one of the three sections of the hot rolling roll's oil path. The right end of the oil return pipe connects to the main oil outlet pipe, facilitating subsequent oil return processing. It can be seen that this hot rolling roll has a three-section structure, with three control mechanisms controlling the oil path within the hot rolling roll. This allows for control of the oil path's opening, closing, or the size of the connected area, achieving temperature control of the hot rolling roll at different locations and facilitating the processing of nonwoven fabrics of different structures or sizes.

[0004] However, existing hot rolling rolls control the heating length by controlling the oil flow range when adjusting the processing width. The width adjustment cycle is fixed and cannot be flexibly adjusted according to the product width. When closing a section of the annular space oil circuit, a certain amount of time is required to recover the oil inside, which affects the adjustment efficiency. In addition, there will inevitably be residual oil inside, resulting in low heat utilization. Summary of the Invention

[0005] To address the aforementioned issues, an energy-saving hot rolling roll is provided. This roll solves the problem of poor flexibility in adjusting the processing width of existing hot rolling rolls by using a frame, heating device, and control device, thereby improving heat utilization efficiency in an applicable manner.

[0006] To address the problems of existing technologies, this invention provides an energy-saving hot rolling roll, comprising a frame, on which a roll is rotatably mounted, and on which a first support and a second support are fixedly mounted, respectively located on opposite sides of the roll. The hot rolling roll also includes a heating device and a control device. The heating device includes an oil pipe, comprising a main pipe and a telescopic pipe. The main pipe is mounted on the first support, and the telescopic pipe slides in conjunction with the main pipe. An oil outlet is located at the end of the main pipe furthest from the telescopic pipe, and an oil inlet is located at the end of the telescopic pipe furthest from the main pipe. An annular piston is slidably mounted inside the main pipe; when the telescopic pipe is in a contracted state, the annular piston simultaneously and tightly engages with the inner wall of the main pipe and the outer wall of the telescopic pipe. The control device includes a telescopic control component and a pushing component. The telescopic control component is located inside the main cylinder and is used to control the telescopic pipe's extension and retraction; the pushing component is located inside the main cylinder and is used to control the sliding of the annular piston.

[0007] Preferably, the frame is further provided with an adjustment device, which includes an adjustment disk and a rotary drive assembly; a straight groove is provided on the first support, and the oil outlet pipe on the main pipe slides in cooperation with the straight groove; the adjustment disk is rotatably mounted on the first support, and an arc-shaped groove is provided on the adjustment disk, and the oil outlet pipe on the main pipe slides in cooperation with the arc-shaped groove; the rotary drive assembly is mounted on the frame and is used to drive the adjustment disk to rotate.

[0008] Preferably, the telescopic control assembly includes a connecting frame, a screw, and a first rotary actuator; the first rotary actuator is mounted on a second bracket; the screw is driven by the drive end of the first rotary actuator; the connecting frame is threadedly connected to the screw; and the connecting frame is provided with a connecting component for connecting to the telescopic tube.

[0009] Preferably, the connecting assembly includes a mounting base, a movable base, a first elastic element, and a connecting post; the mounting base is installed at the end of the telescopic tube and is located at the end of the telescopic tube away from the main tube; a sliding groove is provided on the mounting base, and the movable base is slidably installed in the sliding groove; both ends of the first elastic element are connected to the mounting base and the movable base respectively; the connecting post is installed on the movable base, and a limit block is installed on the connecting post; a first guide groove is provided on the connecting frame, and the first guide groove of the connecting post is slidably engaged.

[0010] Preferably, the pushing assembly includes a heat-conducting rod, a limiting plate, a third bracket, a linear actuator, and a fourth bracket; the two ends of the heat-conducting rod are respectively connected to the annular piston and the limiting plate; the third bracket is slidably installed inside the roller and is in sliding engagement with the inner wall of the roller; the fourth bracket is slidably installed inside the roller and is in sliding engagement with the inner wall of the roller; the linear actuator is mounted on the fourth bracket and its driving end is connected to the third bracket for transmission.

[0011] Preferably, the connecting frame is provided with a self-disengaging device, which includes a threaded seat, a second elastic element, and a docking assembly; the threaded seat is threadedly connected to the screw, and an mounting ring is rotatably mounted on the threaded seat; the two ends of the second elastic element are respectively connected to the mounting ring and the connecting frame; the docking assembly is disposed on the threaded seat, and when the threaded seat and the connecting frame are tightly engaged, the docking assembly may restrict the rotation of the threaded seat.

[0012] Preferably, the docking assembly includes a docking block and a third elastic element; the docking block is slidably mounted on the threaded seat; both ends of the third elastic element are connected to the docking block and the threaded seat respectively; and the connecting frame has docking holes that mate with the docking block.

[0013] Preferably, the rotary drive assembly includes a gear ring, a rotating shaft, a rotary gear, a second rotary driver, pulleys, and a transmission belt; the gear ring is fitted onto an adjusting disc; the rotating shaft is rotatably mounted on a frame; the rotary gear is fitted onto the rotating shaft and is drively connected to the gear ring; the second rotary driver is mounted on the frame; there are two pulleys, which are respectively fitted onto the driving ends of the rotating shaft and the rotary driver; both ends of the transmission belt are respectively fitted onto the two pulleys.

[0014] Preferably, a mounting bracket is slidably mounted on the frame; a positioning ring is mounted on the mounting bracket, and the axis of the positioning ring is collinear with the axis of the roller.

[0015] Preferably, the inner ring of the positioning ring is provided with brush teeth.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention achieves flexible adjustment of the processing width of the hot-rolled tube through a frame, heating device, and control device, thus adapting to nonwoven fabrics of different widths. It solves the problem of poor flexibility in adjusting the processing width of existing hot-rolled rolls. Furthermore, the combination of the main tube, telescopic tube, and annular piston enables two-stage stepless adjustment, allowing the adjustment of the oil length to be completed entirely inside the hot-rolled tube, avoiding its impact on the equipment width and improving the portability of the equipment installation.

[0018] 2. This invention achieves the function of adjusting the distance between the oil pipe and the outer surface of the roller through the straight groove, the adjusting plate and the rotary drive assembly, thereby achieving the effect of quickly adjusting the working temperature of the hot rolling roll.

[0019] 3. The present invention realizes the function of controlling the extension and retraction of the telescopic tube through the connecting frame, screw, first rotary driver and connecting assembly. At the same time, the connecting assembly achieves the effect of driving the extension and retraction of the telescopic tube without affecting the sliding of the oil outlet pipe on the main pipe along the straight groove. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of an energy-saving hot rolling roll.

[0021] Figure 2 This is a cross-sectional schematic diagram of an energy-saving hot rolling roll.

[0022] Figure 3 This is a three-dimensional cross-sectional view of an energy-saving hot rolling roll.

[0023] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0024] Figure 5 This is a three-dimensional schematic diagram of the oil pipe in an energy-saving hot rolling roll.

[0025] Figure 6 This is a three-dimensional exploded view of the adjustment device in an energy-saving hot rolling roll.

[0026] Figure 7 This is a three-dimensional schematic diagram of a telescopic control component in an energy-saving hot rolling roll.

[0027] Figure 8 This is a three-dimensional exploded view of the telescopic control component in an energy-saving hot rolling roll.

[0028] Figure 9 This is a three-dimensional schematic diagram of the pusher assembly in an energy-saving hot rolling roll.

[0029] Figure 10 This is a three-dimensional exploded view of a self-detachment device in an energy-saving hot rolling roll.

[0030] Figure 11 This is a three-dimensional schematic diagram of a single hot rolling roll in an energy-saving hot rolling roll system.

[0031] The diagram is labeled as follows: 1-Frame; 11-Roller; 12-First Support; 13-Second Support; 14-Mounting Frame; 15-Positioning Ring; 151-Brush Teeth; 2-Heating Device; 21-Oil Pipe; 211-Main Pipe; 212-Telescopic Pipe; 213-Oil Inlet Pipe; 214-Oil Outlet Pipe; 22-Annular Pipe; 3-Control Device; 31-Telescopic Control Assembly; 311-Connecting Frame; 312-Screw; 313-First Rotary Driver; 32-Pushing Assembly; 321-Heat Conducting Rod; 322-Limiting Plate; 323-Third Support; 324-Linear Driver; 325-Fourth Support; 3251-Second Guide Groove; 33-Connecting... 331-Mounting base; 332-Slide groove; 333-Modible seat; 334-First elastic element; 335-Connecting column; 3351-Limiting block; 336-First guide groove; 4-Adjusting device; 41-Straight groove; 42-Adjusting disc; 421-Arc groove; 43-Rotary drive assembly; 431-Gear ring; 432-Rotating shaft; 433-Rotary gear; 434-Second rotary driver; 435-Pulley; 436-Transmission belt; 5-Self-detaching device; 51-Threaded seat; 511-Mounting ring; 52-Second elastic element; 53-Mating assembly; 531-Mating block; 532-Third elastic element; 533-Mating hole. Detailed Implementation

[0032] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figures 1-5 An energy-saving hot rolling roll includes a frame 1, on which a roll 11 is rotatably mounted. A first support 12 and a second support 13 are fixedly mounted on the frame 1, located on opposite sides of the roll 11. The hot rolling roll also includes a heating device 2 and a control device 3. The heating device 2 includes an oil pipe 21, which comprises a main pipe 211 and a telescopic pipe 212. The main pipe 211 is mounted on the first support 12, and the telescopic pipe 212 is slidably fitted with the main pipe 211. The end of the main pipe 211 furthest from the telescopic pipe 212... An oil outlet pipe 214 is provided, and an oil inlet pipe 213 is provided at the end of the telescopic pipe 212 away from the main pipe 211. An annular piston 22 is slidably installed inside the main pipe 211. When the telescopic pipe 212 is in the contracted state, the annular piston 22 is in close contact with both the inner wall of the main pipe 211 and the outer wall of the telescopic pipe 212. The control device 3 includes a telescopic control component 31 and a pushing component 32. The telescopic control component 31 is located inside the main cylinder and is used to control the telescopic pipe 212 to extend and retract. The pushing component 32 is located inside the main cylinder and is used to control the sliding of the annular piston 22.

[0034] Solenoid valves are installed at both the oil inlet pipe 213 and the oil outlet pipe 214. The solenoid valves are not shown in the figure. The operator can achieve basic control of the oil circuit through the oil inlet pipe 213, the oil outlet pipe 214 and the solenoid valves.

[0035] This invention achieves flexible adjustment of the processing width of the hot-rolled tube through the frame 1, heating device 2, and control device 3, thus adapting to nonwoven fabrics of different widths. It solves the problem of poor flexibility in adjusting the processing width of existing hot-rolled rolls. Furthermore, the two-stage stepless adjustment is achieved through the cooperation of the main tube 211, telescopic tube 212, and annular piston 22, so that the adjustment of the oil length is completed entirely inside the hot-rolled tube, avoiding its impact on the equipment width and improving the portability of the equipment installation. The telescopic control component 31 and the pushing component 32 are electrically connected to the controller. After changing products, the operator adjusts the processing width of the hot-rolled tube according to the width of the non-woven fabric. First, the controller sends a signal to the telescopic control component 31. After receiving the signal, the telescopic control component 31 drives the telescopic tube 212 to contract, thereby adjusting the total length of the oil pipe 21 and shortening the heating length of the heating device 2. The adjustment range of the telescopic tube 212 is only half of the oil pipe 21. If the heating length is still longer than the width of the non-woven fabric when the telescopic tube 212 is contracted to the limit position, the controller sends a signal to the pushing component 32. The pushing component 32 drives the annular piston 22 to slide along the main pipe 211 and compress the oil. Through the push of the annular piston 22, a tubular air layer is formed between the main pipe 211 and the telescopic tube 212, thereby reducing the heat exchange between the oil in the telescopic tube 212 and the external space of the main pipe 211, and further shortening the heating length. Compared with the prior art, this application realizes stepless adjustment of the heating width to adapt to the size of nonwoven fabric, and at the same time achieves the effect that all adjustment actions are completed inside the roller 11 of the hot rolling roll.

[0036] Reference Figure 1 , Figure 2 and Figure 6 The frame 1 is also equipped with an adjustment device 4, which includes an adjustment disk 42 and a rotary drive assembly 43. A straight groove 41 is provided on the first support 12, and the oil outlet pipe 214 on the main pipe 211 is slidably engaged with the straight groove 41. The adjustment disk 42 is rotatably mounted on the first support 12, and an arc groove 421 is provided on the adjustment disk 42, and the oil outlet pipe 214 on the main pipe 211 is slidably engaged with the arc groove 421. The rotary drive assembly 43 is mounted on the frame 1 and is used to drive the adjustment disk 42 to rotate.

[0037] This invention achieves the function of adjusting the distance between the oil pipe 21 and the outer surface of the roller 11 through the straight groove 41, the adjusting plate 42, and the rotary drive assembly 43, thereby achieving the effect of quickly adjusting the working temperature of the hot rolling roller. The rotary drive assembly 43 is electrically connected to the controller; when the operator changes to different types of nonwoven fabric, it is necessary to adjust the working temperature of the hot rolling roller as needed. For this purpose, an adjusting device 4 for adjusting the position of the oil pipe 21 is provided. When adjusting the working temperature, the operator first sends a signal to the controller to rotate the drive assembly 43. The drive assembly 43 drives the adjustment disk 42 to rotate, which in turn drives the arc groove 421 to rotate. This, in turn, pushes the oil outlet pipe 214 through the arc groove 421 and guides the movement of the oil outlet pipe 214 through the straight groove 41 on the first bracket 12. The oil outlet pipe 214 drives the main pipe 211 to move, thereby changing the distance between the oil pipe 21 and the outer surface of the roller 11. When the distance increases, the oil pipe 21 moves closer to the axis of the roller 11, and the temperature of the roller 11 surface decreases. Conversely, the temperature of the roller 11 surface increases. Furthermore, the first bracket 12 and the second bracket 13, located on both sides of the roller 11, are both hollowed out. The operator can increase the airflow velocity inside the roller 11 by setting up fans or other equipment on both sides, thereby reducing the heat accumulation inside the roller 11 and further improving the response speed of temperature adjustment.

[0038] Reference Figure 2 , Figure 3 and Figure 7 The telescopic control assembly 31 includes a connecting frame 311, a screw 312, and a first rotary driver 313; the first rotary driver 313 is mounted on the second bracket 13; the screw 312 is connected to the drive end of the first rotary driver 313; the connecting frame 311 is threadedly connected to the screw 312; and the connecting frame 311 is provided with a connecting assembly 33 for connecting to the telescopic tube 212.

[0039] The present invention realizes the function of controlling the extension and retraction of the telescopic tube 212 through the connecting frame 311, screw 312, first rotary driver 313 and connecting component 33. At the same time, the connecting component 33 achieves the effect of driving the extension and retraction of the telescopic tube 212 without affecting the sliding of the oil outlet pipe 214 on the main pipe 211 along the straight groove 41. The first rotary actuator 313 is preferably a servo motor, which is electrically connected to the controller. When adjusting the processing width, the operator first sends a signal to the first rotary actuator 313 through the controller. After receiving the signal, the first rotary actuator 313 drives the screw 312 to rotate. The screw 312 drives the connecting frame 311 to move. The connecting frame 311 drives the telescopic tube 212 to retract through the connecting component 33, thereby adjusting the total length of the oil pipe 21 and shortening the heating length of the heating device 2. The adjustment range of the telescopic tube 212 is only half that of the oil pipe 21. If the heating length is still longer than the width of the non-woven fabric when the telescopic tube 212 is retracted to the limit position, the controller sends a signal to the pushing component 32. The pushing component 32 drives the annular piston 22 to slide along the main pipe 211 and compress the oil. Through the push of the annular piston 22, a tubular air layer is formed between the main pipe 211 and the telescopic tube 212, thereby reducing the heat exchange between the oil in the telescopic tube 212 and the external space of the main pipe 211, and further shortening the heating length.

[0040] Reference Figure 2 , Figure 3 , Figure 7 and Figure 8 The connecting assembly 33 includes a mounting base 331, a movable base 333, a first elastic element 334, and a connecting post 335. The mounting base 331 is installed at the end of the telescopic tube 212 and is located at the end of the telescopic tube 212 away from the main tube 211. A sliding groove 332 is provided on the mounting base 331, and the movable base 333 is slidably installed in the sliding groove 332. The two ends of the first elastic element 334 are respectively connected to the mounting base 331 and the movable base 333. The connecting post 335 is installed on the movable base 333, and a limit block 3351 is installed on the connecting post 335. A first guide groove 336 is provided on the connecting frame 311, and the first guide groove 336 of the connecting post 335 is slidably engaged.

[0041] The present invention realizes the function of connecting the telescopic tube 212 and the connecting frame 311 through the mounting base 331, the slide 332, the movable base 333, the first elastic element 334 and the connecting column 335, thereby achieving the effect of coordinating the telescopic control component 31 and the adjustment device 4. When adjusting the working temperature, the operator first sends a signal to the controller to rotate the drive assembly 43. The drive assembly 43 drives the adjustment disk 42 to rotate, which in turn drives the arc groove 421 to rotate. This, in turn, pushes the oil outlet pipe 214 through the arc groove 421. The movement of the oil outlet pipe 214 is guided by the straight groove 41 on the first bracket 12. The oil outlet pipe 214 drives the main pipe 211 to move, thereby changing the distance between the oil pipe 21 and the outer surface of the roller 11. At the same time, the telescopic pipe 212 drives the mounting base 331 to move. The mounting base 331 pulls the movable seat 333 and the connecting column 335 to move through the first elastic element 334. The connecting column 335 slides along the first guide groove 336. The extension and retraction of the first elastic element 334 extends the travel of the telescopic pipe 212, avoiding its influence by the length of the first guide groove 336, thereby improving the fault tolerance of the equipment operation. When adjusting the processing width, the operator first sends a signal to the first rotary driver 313 through the controller. After receiving the signal, the first rotary driver 313 drives the screw 312 to rotate. The screw 312 drives the connecting frame 311 to move. The connecting frame 311 pushes the mounting base 331 to move, and then the mounting base 331 drives the telescopic tube 212 to retract, thereby adjusting the total length of the oil pipe 21 and shortening the heating length of the heating device 2.

[0042] Reference Figure 3 , Figure 5 and Figure 9 The pushing assembly 32 includes a heat-conducting rod 321, a limiting plate 322, a third bracket 323, a linear actuator 324, and a fourth bracket 325. The two ends of the heat-conducting rod 321 are respectively connected to the annular piston 22 and the limiting plate 322. The third bracket 323 is slidably installed inside the roller 11 and is in sliding engagement with the inner wall of the roller 11. The fourth bracket 325 is slidably installed inside the roller 11 and is in sliding engagement with the inner wall of the roller 11. The linear actuator 324 is installed on the fourth bracket 325 and its driving end is connected to the third bracket 323 for transmission.

[0043] The fourth support 325 is provided with a second guide groove 3251, which supports the main pipe 211. The cooperation between the second guide groove 3251 and the main pipe 211 ensures that the fourth support 325 and the first support 12 are circumferentially synchronized.

[0044] This invention achieves the function of driving the annular piston 22 to move through a heat-conducting rod 321, a limiting plate 322, a third bracket 323, a linear actuator 324, and a fourth bracket 325. The linear actuator 324 is preferably a linear cylinder, and it is electrically connected to a controller. When adjusting the processing width, the operator first sends a signal to the first rotary actuator 313 through the controller. Upon receiving the signal, the first rotary actuator 313 drives the screw 312 to rotate. The screw 312 drives the telescopic tube 212 to retract through the connecting assembly 33, thereby adjusting the total length of the oil pipe 21 and shortening the heating length of the heating device 2. The adjustment range of the telescopic tube 212 is only half that of the oil pipe 21. If the telescopic tube 212 retracts to its limit position, the heating length is significantly reduced compared to when there is no... If the width of the woven fabric is still too long, the controller sends a signal to the linear driver 324. After receiving the signal, the linear driver 324 drives the third support 323 to move, which in turn pushes the limiting piece 322. The limiting piece 322 uses the heat-conducting rod 321 to push the annular piston 22 to slide along the inner wall of the main pipe 211, compressing the oil. Through the pushing of the annular piston 22, a tubular air layer is formed between the main pipe 211 and the telescopic tube 212, thereby reducing the heat exchange between the oil in the telescopic tube 212 and the external space of the main pipe 211, and further shortening the heating length.

[0045] Reference Figure 2 , Figure 8 and Figure 10 The connecting frame 311 is provided with a self-disengaging device 5, which includes a threaded seat 51, a second elastic element 52, and a docking assembly 53. The threaded seat 51 is threadedly connected to the screw 312, and an mounting ring 511 is rotatably mounted on the threaded seat 51. The two ends of the second elastic element 52 are respectively connected to the mounting ring 511 and the connecting frame 311. The docking assembly 53 is disposed on the threaded seat 51. When the threaded seat 51 and the connecting frame 311 are tightly engaged, the docking assembly 53 may restrict the rotation of the threaded seat 51.

[0046] This invention achieves the function of controlling the connection and disconnection of the screw 312 and the connecting seat through the threaded seat 51, the second elastic element 52, and the docking assembly 53, thus achieving the effect of automatically disconnecting the transmission between the screw 312 and the telescopic tube 212 when the telescopic tube 212 is retracted to its limit. When adjusting the processing width, the operator first sends a signal to the first rotary driver 313 through the controller. After receiving the signal, the first rotary driver 313 drives the screw 312 to rotate. At this time, the threaded seat 51 is tightly engaged with the connecting frame 311 under the elastic force of the second elastic element 52, and cannot rotate due to the restriction of the docking assembly 53. The screw 312 will drive the threaded seat 51, which is threaded to it, to move. The threaded seat 51 drives the connecting frame 311 to move. The connecting frame 311 pushes the mounting seat 331 to move, which in turn drives the telescopic tube 212 to retract through the mounting seat 331, thereby adjusting the total length of the oil pipe 21 and shortening the heating length of the heating device 2. When the telescopic tube 212 retracts to its limit, it cannot move due to the restriction of the limiting piece 322. While the first rotary driver 313 is still driving, the threaded seat 51 will overcome the elastic force of the second elastic element 52 and continue to move until it separates from the connecting frame 311. The docking assembly 53 releases the rotation restriction on the threaded seat 51, and the threaded seat 51 can no longer move and rotates synchronously with the screw 312, thereby avoiding excessive movement of the telescopic rod. At the same time, the threaded seat 51 can be reset, eliminating the driving error of the first rotary driver 313.

[0047] Reference Figure 2 , Figure 8 and Figure 10 The docking assembly 53 includes a docking block 531 and a third elastic element 532; the docking block 531 is slidably mounted on the threaded seat 51; the two ends of the third elastic element 532 are respectively connected to the docking block 531 and the threaded seat 51; the connecting frame 311 has a docking hole 533 that mates with the docking block 531.

[0048] This invention achieves the function of restricting the rotation of the threaded seat 51 when it is tightly engaged with the connecting frame 311 through the mating block 531, the third elastic element 532, and the mating hole 533. When the movement of the threaded seat 51 is unaffected, it is tightly engaged with the connecting frame 311 under the elastic force of the third elastic element 532. As driven by the screw 312, it rotates, causing the mating block 531 to rotate. When the mating block 531 engages with the mating hole 533, it is locked into the mating hole 533 under the elastic force of the third elastic element 532. Thus, the engagement of the mating block 531 and the mating hole 533 restricts the rotation of the threaded seat 51, allowing it to move under the drive of the screw 312. After processing, when initializing the processing width, the operator controls the third support 323 and the connecting frame 311 to reset through the drive of the linear actuator 324 and the first rotary actuator 313. The telescopic rod and piston quickly reset under hydraulic pressure.

[0049] Reference Figure 1 , Figure 2 and Figure 6 The rotary drive assembly 43 includes a gear ring 431, a rotating shaft 432, a rotating gear 433, a second rotary driver 434, pulleys 435, and a transmission belt 436. The gear ring 431 is sleeved on the adjusting disc 42. The rotating shaft 432 is rotatably mounted on the frame 1. The rotating gear 433 is sleeved on the rotating shaft 432 and is connected to the gear ring 431 in a transmission manner. The second rotary driver 434 is mounted on the frame 1. There are two pulleys 435, which are respectively sleeved on the rotating shaft 432 and the drive end of the rotary driver. The two ends of the transmission belt 436 are respectively sleeved on the two pulleys 435.

[0050] The present invention realizes the function of driving the adjustment disk 42 to rotate through the toothed ring 431, the rotating shaft 432, the rotating gear 433, the second rotating driver 434, the pulley 435 and the transmission belt 436. The second rotary driver 434 is preferably a servo motor, which is electrically connected to the controller. When adjusting the working temperature, the operator first sends a signal to the second rotary driver 434 through the controller. After receiving the signal, the second rotary driver 434 drives the rotating shaft 432 to rotate through the pulley 435 and the transmission belt 436. The rotating shaft 432 drives the rotating gear 433 to rotate, which in turn drives the toothed ring 431 connected to it to rotate. The toothed ring 431 drives the adjusting disk 42 to rotate, which in turn drives the arc groove 421 to rotate. This, in turn, pushes the oil outlet pipe 214 through the arc groove 421 and guides the movement of the oil outlet pipe 214 through the straight groove 41 on the first bracket 12. The oil outlet pipe 214 drives the main pipe 211 to move, thereby changing the distance between the oil pipe 21 and the outer surface of the roller 11. When the distance increases, the oil pipe 21 moves closer to the axis of the roller 11, and the temperature of the roller 11 surface decreases. Conversely, when the distance decreases, the temperature of the roller 11 surface increases.

[0051] Reference Figure 1 and Figure 11 A mounting bracket 14 is slidably mounted on the frame 1; a positioning ring 15 is mounted on the mounting bracket 14, and the axis of the positioning ring 15 is collinear with the axis of the roller 11.

[0052] This invention achieves the function of guiding the movement of nonwoven fabric through the mounting frame 14 and the positioning ring 15. When processing nonwoven fabric, the operator slides the mounting frame 14 according to the width of the nonwoven fabric. The mounting frame 14 drives the positioning ring 15 to move, so that the distance between the positioning ring 15 and the first support 12 is the same as the width of the nonwoven fabric. Thus, the movement of the nonwoven fabric is guided by the positioning ring 15 and the first support 12.

[0053] Reference Figure 1 and Figure 11The inner ring of the positioning ring 15 is provided with brush teeth 151.

[0054] This invention achieves the function of cleaning the outer surface of the roller 11 through the brush teeth 151. After processing, the operator holds the mounting frame 14 and pushes it to move. The mounting frame 14 drives the positioning ring 15 to move, so that the positioning ring 15 moves back and forth along the outer surface of the roller 11. The brush teeth 151 clean the debris adhering to the outer surface of the roller 11.

[0055] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An energy-saving hot rolling roll, comprising a frame (1), a roller (11) rotatably mounted on the frame (1), and a first bracket (12) and a second bracket (13) fixedly mounted on the frame (1), the first bracket (12) and the second bracket (13) being located on both sides of the roller (11), and both the first bracket (12) and the second bracket (13) being circular; Its features are, The hot rolling roll also includes a heating device (2) and a control device (3); The heating device (2) includes five oil pipes (21) arranged around the axis of the hot rolling roll. Each oil pipe (21) includes a main pipe (211) and a telescopic pipe (212). The main pipe (211) is mounted on the first bracket (12), and the telescopic pipe (212) slides in conjunction with the main pipe (211); The end of the main pipe (211) away from the telescopic pipe (212) is provided with an oil outlet pipe (214), and the end of the telescopic pipe (212) away from the main pipe (211) is provided with an oil inlet pipe (213). An annular piston (22) is slidably installed inside the main pipe (211). When the telescopic tube (212) is in the contracted state, the annular piston (22) is in close contact with both the inner wall of the main pipe (211) and the outer wall of the telescopic tube (212). The control device (3) includes a telescopic control assembly (31) and a pushing assembly (32). The telescopic control assembly (31) is disposed inside the roller (11) and is used to control the telescopic tube (212) to extend or retract; The pressing assembly (32) is disposed inside the roller (11) and is used to control the sliding of the annular piston (22); The frame (1) is also provided with an adjustment device (4), which includes an adjustment disk (42) and a rotary drive assembly (43). A straight groove (41) is provided on the first bracket (12) around the axis, and the oil outlet pipe (214) on the main pipe (211) is slidably engaged with the straight groove (41); The adjusting plate (42) is rotatably mounted on the first bracket (12), and an arc groove (421) is provided on the adjusting plate (42) around the axis. The oil outlet pipe (214) on the main pipe (211) is slidably engaged with the arc groove (421). The number of straight grooves (41) and arc grooves (421) is the same as the number of oil pipes (21) and they correspond one-to-one; A rotary drive assembly (43) is mounted on the frame (1) and is used to drive the adjustment disc (42) to rotate; The telescopic control assembly (31) includes a connecting frame (311), a screw (312), and a first rotary actuator (313). The first rotary actuator (313) is mounted on the second bracket (13); The screw (312) is connected to the drive end of the first rotary actuator (313) via a transmission connection; The connecting bracket (311) is threadedly connected to the screw (312); The connecting frame (311) is provided with connecting components (33) for connecting with the telescopic tube (212). The number of connecting components (33) is the same as the number of telescopic tubes (212) and they correspond one-to-one. The connecting assembly (33) includes a mounting base (331), a movable base (333), a first elastic element (334), and a connecting post (335); The mounting base (331) is installed at the end of the telescopic tube (212) and is located at the end of the telescopic tube (212) away from the main tube (211); The mounting base (331) has a sliding groove (332), and the movable base (333) is slidably installed in the sliding groove (332); The two ends of the first elastic element (334) are connected to the mounting base (331) and the movable base (333) respectively; The connecting column (335) is installed on the movable seat (333), and the limiting block (3351) is installed on the connecting column (335). A first guide groove (336) is provided on the connecting frame (311) around the axis, and the connecting post (335) of each connecting component (33) slides in cooperation with each first guide groove (336).

2. The energy-saving hot rolling roll according to claim 1, characterized in that, The push assembly (32) includes a heat-conducting rod (321), a limiting piece (322), a third bracket (323), a linear actuator (324), and a fourth bracket (325); The two ends of the heat-conducting rod (321) are connected to the annular piston (22) and the limiting plate (322) respectively; The third support (323) is slidably installed inside the roller (11) and slides in contact with the inner wall of the roller (11); The fourth bracket (325) is slidably installed inside the roller (11) and slides in contact with the inner wall of the roller (11); The linear actuator (324) is mounted on the fourth bracket (325) and its drive end is connected to the third bracket (323) in a transmission connection.

3. The energy-saving hot rolling roll according to claim 1, characterized in that, The connecting frame (311) is provided with a self-disengaging device (5), which includes a threaded seat (51), a second elastic element (52), and a docking assembly (53). The threaded seat (51) is threadedly connected to the screw (312), and an mounting ring (511) is rotatably mounted on the threaded seat (51). The two ends of the second elastic element (52) are connected to the mounting ring (511) and the connecting bracket (311) respectively; The docking component (53) is set on the threaded seat (51). When the threaded seat (51) and the connecting frame (311) are in tight contact, the docking component (53) restricts the rotation of the threaded seat (51).

4. The energy-saving hot rolling roll according to claim 3, characterized in that, The docking assembly (53) includes a docking block (531) and a third elastic element (532); The mating block (531) is slidably mounted on the threaded seat (51); The two ends of the third elastic element (532) are connected to the mating block (531) and the threaded seat (51) respectively; The connecting frame (311) has a mating hole (533) that mates with the mating block (531).

5. The energy-saving hot rolling roll according to claim 1, characterized in that, The rotary drive assembly (43) includes a gear ring (431), a shaft (432), a rotary gear (433), a second rotary driver (434), a pulley (435), and a drive belt (436). The gear ring (431) is fitted onto the adjusting disc (42); The rotating shaft (432) is rotatably mounted on the frame (1); A rotating gear (433) is sleeved on a rotating shaft (432), and the rotating gear (433) is connected to the gear ring (431) for transmission. The second rotary drive (434) is mounted on the frame (1); Two pulleys (435) are provided, and the two pulleys (435) are respectively sleeved on the drive end of the rotating shaft (432) and the second rotary drive (434); The two ends of the transmission belt (436) are respectively fitted onto two pulleys (435).

6. The energy-saving hot rolling roll according to claim 1, characterized in that, A mounting bracket (14) is slidably mounted on the frame (1); A positioning ring (15) is installed on the mounting bracket (14), and the axis of the positioning ring (15) is collinear with the axis of the roller (11).

7. An energy-saving hot rolling roll according to claim 6, characterized in that, The inner ring of the positioning ring (15) is provided with brush teeth (151).

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