Strip steel continuous production line

Abstract

The invention belongs to the technical field of metal processing, and discloses a strip steel continuous production line which comprises an uncoiler, an uncoiler, a rolling machine and a rolling machine. The plate splicing and strip welding machine is used for mutually welding the tail part of one strip steel and the head part of the other strip steel and outputting continuous strip steel; the first loop is used for transferring and conveying continuous strip steel and outputting the strip steel at a constant speed; the machining system is used for machining the strip steel output at the constant speed; the plate shearing machine is used for slitting the processed strip steel; the second loop is located between the machining system and the plate shearing machine, the second loop is used for transferring and caching the machined strip steel and feeding the strip steel at a constant speed according to starting of the plate shearing machine, the first loop and the second loop are used for feeding the steel strip and transferring and caching the steel strip during machining, continuous production of the strip steel can be achieved, the production efficiency is improved, and the production cost is reduced. And therefore, the production efficiency of the steel belt is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and particularly to a continuous strip production line. Background Art

[0002] Steel plates are basic components for product production. To produce the required steel plates, it is necessary to unroll the steel coil to obtain the strip first, and then perform processing operations such as roll coating and drying on the strip. Finally, it is cut into steel plates. During this process, when the previous coil of steel is completely unrolled and it is necessary to replace the next coil of steel, the entire production line needs to stop or run idly for a period of time, resulting in difficulty in improving production efficiency. Therefore, there is an urgent need for a production line that can improve the production efficiency of strips. Summary of the Invention The purpose of the present invention is to provide a continuous strip production line to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0003] The solution of the present invention to solve its technical problems is as follows: A continuous strip production line, comprising: An uncoiler for unrolling the steel coil to obtain the strip; A splicing and welding machine for welding the tail of one strip to the head of another strip and outputting a continuous strip; A first loop for transferring the continuous strip in transit and outputting the strip at a uniform speed; A processing system for processing the strip output at a uniform speed; A shearing machine for cutting the processed strip; A second loop located between the processing system and the shearing machine, and the second loop is used for transferring and buffering the processed strip and feeding the strip into the shearing machine at a uniform speed according to the opening of the shearing machine.

[0004] The technical solution has at least the following beneficial effects: The uncoiler unwinds the steel coil and outputs the strip steel. The strip steel enters the first loop after passing through the butt welding machine for strip joining, and is transferred in the first loop. When the previous steel coil is completely unwound, the tail of the previous steel coil is located at the butt welding machine for strip joining. The next steel coil is loaded into the uncoiler, and the head of the next steel coil is sent to the butt welding machine for strip joining for welding to form a continuous strip steel. During this coil changing and welding process, since the strip steel is temporarily stored in the first loop for transfer, it can ensure that the strip steel is output to the processing system at a uniform and stable speed, thereby ensuring that the processing system can continuously process the strip steel. After the processing system finishes producing the strip steel, it is transported to the second loop, and the second loop performs transfer buffering on the strip steel. When the shearing machine is started, the second loop uniformly feeds the strip steel into the shearing machine. When the shearing machine needs to stop, the processing system can continue to feed the strip steel into the second loop, while the second loop stops feeding the strip steel into the shearing machine. In this way, by using the first loop and the second loop for transfer buffering during the feeding and processing of the strip steel, continuous production of the strip steel can be achieved, thereby greatly improving the production efficiency of the steel strip.

[0005] As a further improvement of the above technical solution, the present invention further includes a punching machine, the punching machine is located between the uncoiler and the butt welding machine for strip joining, the punching machine is used for punching the strip steel unwound, the processing system includes a leveling machine, a detection sensor is configured in the leveling machine, the detection sensor is used for detecting the punching on the strip steel, and a support plate capable of lifting the strip steel is arranged in the leveling machine.

[0006] As a further improvement of the above technical solution, the present invention further includes a loading machine, the loading machine includes a transfer seat, a strip passing mechanism and a measuring mechanism. Two transfer seats are arranged at intervals in the left-right direction. The strip passing mechanism has a strip passing cart capable of moving closer to or away from the uncoiler. The strip passing cart is located between the two transfer seats. A support seat capable of protruding upward or retracting downward into the transfer seat is arranged on the strip passing cart. The measuring mechanism includes a scale grating and an indicating grating. The scale grating and the indicating grating are respectively located on one side of the two transfer seats away from each other. The scale grating and the indicating grating can form a measuring area above the transfer seat.

[0007] As a further improvement of the above technical solution, the measuring mechanism includes a mounting seat, a rotation driving member and a gantry. Mounting seats are respectively arranged on one side of the two transfer seats away from each other. The left and right sides of the bottom of the gantry are respectively rotatably connected to the two mounting seats. The rotation driving member is drivingly connected to the gantry. The rotation driving member can drive the gantry to rotate to a vertical or horizontal state. The scale grating and the indicating grating are respectively located on the left and right sides of the gantry.

[0008] As a further improvement of the above technical solution, a lifting driving member is provided on the material passing vehicle. The lifting driving member is drivingly connected to the middle bottom side of the supporting seat. A guide post is connected to the bottom side of the supporting seat. The guide post is slidably connected to the material passing vehicle in the up and down direction, and a plurality of guide posts are arranged around the lifting driving member.

[0009] As a further improvement of the above technical solution, the lifting driving member includes a lead screw connected between the supporting seat and the material passing vehicle, and a first motor drivingly connected to the lead screw. A speed reducer is provided on the material passing vehicle. There are a plurality of first motors, and the plurality of first motors are drivingly connected to the lead screw through the speed reducer.

[0010] As a further improvement of the above technical solution, the processing system includes a steel belt tensioner. The steel belt tensioner includes a base frame, a first conveying mechanism and a second conveying mechanism. The first conveying mechanism includes a third motor and a first conveying roller. The first conveying roller is rotatably connected to the base frame along the axis in the left and right direction. The third motor is drivingly connected to the first conveying roller. The second conveying mechanism includes a fourth motor and a second conveying roller. The second conveying roller is rotatably connected to the base frame along the axis in the left and right direction. The fourth motor is drivingly connected to the second conveying roller. The first conveying roller and the second conveying roller are arranged at intervals in the front and back direction, and the height of the first conveying roller is higher than the height of the second conveying roller.

[0011] As a further improvement of the above technical solution, the steel belt tensioner further includes a first pressing mechanism. The first pressing mechanism has a first pressing roller that can move up and down, and the first pressing roller can move downward close to or upward away from the first conveying roller.

[0012] As a further improvement of the above technical solution, the steel belt tensioner further includes a second pressing mechanism. The second pressing mechanism has a second pressing roller that can move up and down, and the second pressing roller can move upward close to or downward away from the second conveying roller.

[0013] As a further improvement of the above technical solution, the processing system further includes a dryer, and the steel belt tensioners are arranged on both the feeding side and the discharging side of the dryer.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly describe the drawings required for the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present invention, rather than all the embodiments. Those skilled in the art can obtain other design solutions and drawings based on these drawings without creative efforts.

[0016] Figure 1 is a schematic diagram of part of the structure of a strip continuous production line Figure One .

[0017] Figure 2 is a schematic diagram of part of the structure of a strip continuous production line Figure Two .

[0018] Figure 3 is a schematic diagram of part of the structure of a strip continuous production line Figure Three .

[0019] Figure 4 is a schematic diagram of part of the structure of a strip continuous production line Figure Four .

[0020] Figure 5 is a side view of the loading machine of the present invention.

[0021] Figure 6 is a top view of the loading machine of the present invention.

[0022] Figure 7 is a first three-dimensional view of the strip tensioner of the present invention.

[0023] Figure 8 is a second three-dimensional view of the strip tensioner of the present invention.

[0024] In the attached drawings: 111 - loading machine, 112 - decoiler, 113 - uncoiling and feeding device, 114 - first vertical guide roller, 115 - pinch seven-roll leveling machine, 116 - turning table, 117 - head and tail cutting shear, 118 - second vertical guide roller, 119 - punching machine, 120 - corner cutting machine, 121 - panel splicing and welding machine, 122 - third vertical guide roller, 123 - plate edge rust removal device, 124 - horizontal pinch and edge rolling machine, 125 - first loop, 126 - inclined positioning roller, 127 - sandblasting machine assembly, 128 - horizontal positioning roller, 129 - centering and guiding device, 130 - first steel strip tensioner, 131 - roller coater, 132 - dryer, 133 - fourth vertical guide roller, 134 - second steel strip tensioner, 135 - thick plate thirteen-roll leveling machine, 136 - thin plate thirteen-roll leveling machine, 137 - second loop, 138 - fifth vertical guide roller, 139 - fixed-length five-roll leveling machine, 140 - shearing machine, 141 - receiving roller table, 142 - conveying roller table, 143 - material rectifying device, 144 - side pushing device, 145 - stacking flat car, 200 - transfer seat, 210 - first limit groove, 310 - material passing car, 320 - support, 321 - second limit groove, 330 - guide post, 341 - lead screw, 342 - first motor, 351 - guide rail, 352 - roller, 353 - second motor, 410 - mounting seat, 420 - rotary drive, 430 - gantry, 500 - base frame, 610 - third motor, 620 - first conveyor roller, 710 - fourth motor, 720 - second conveyor roller, 810 - first pressure roller, 820 - bracket, 830 - first swing frame, 831 - first bearing seat, 840 - first linear drive, 910 - second pressure roller, 920 - second swing frame, 930 - second linear drive. Detailed implementation manners

[0025] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the attached drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the attached drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0026] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0027] In the description of the present invention, the meaning of "several" is one or more, the meaning of "a plurality" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, and understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0029] Refer to Figure 1 , a strip continuous production line, including: An uncoiler 112 for unwinding a strip from a steel coil; A splicing and welding machine 121 for welding the tail of one strip to the head of another strip and outputting a continuous strip; A first loop 125 for transferring and buffering the continuous strip and outputting the strip at a constant speed; A processing system for processing the strip output at a constant speed; A shearing machine 140 for cutting the processed strip; A second loop 137 is located between the processing system and the shearing machine 140. The second loop 137 is used for transferring and buffering the processed strip and feeding the strip into the shearing machine 140 at a constant speed according to the opening of the shearing machine 140.

[0030] As described above, the decoiler 112 unwinds the steel coil and outputs the strip steel. The strip steel enters the first loop 125 after passing through the butt welding machine 121 for splicing strips, and is transferred in the first loop 125. When the previous steel coil is completely unwound, the tail of the previous steel coil is located at the butt welding machine 121 for splicing strips. The next steel coil is loaded into the decoiler 112, and the head of the next steel coil is sent to the butt welding machine 121 for splicing strips to form a continuous strip steel. During this coil-changing and welding process, since the strip steel is temporarily stored in the first loop 125 for transfer, it can ensure a uniform and stable output of the strip steel to the processing system, thereby ensuring that the processing system can continuously process the strip steel. After the processing system finishes producing the strip steel, it is transported into the second loop 137, and the second loop 137 performs transfer buffering on the strip steel. When the shearing machine 140 is started, the second loop 137 uniformly feeds the strip steel into the shearing machine 140. When the shearing machine 140 needs to stop, the processing system can continue to feed the strip steel into the second loop 137, while the second loop 137 stops feeding the strip steel into the shearing machine 140. By using the first loop 125 and the second loop 137 for transfer buffering during the feeding and processing of the strip steel, continuous production of the strip steel can be achieved, thus greatly improving the production efficiency of the strip steel.

[0031] The present invention further includes a punching machine 119, which is located between the decoiler 112 and the butt welding machine 121 for splicing strips. The punching machine 119 is used to punch the strip steel unwound from the coil. The processing system includes a leveling machine, and a detection sensor is configured in the leveling machine. The detection sensor is used to detect the punching holes on the strip steel. A support plate capable of lifting the strip steel is provided in the leveling machine. Before the tail of the strip steel enters the butt welding machine 121 for splicing strips, the punching machine 119 first punches the tail of the strip steel, and at this time, detection holes can be formed at the strip steel splicing position. When the strip steel enters the leveling machine, the detection sensor can detect the detection holes at this position, thereby identifying this position as the strip steel splicing position. The detection sensor can be an infrared sensor, a laser sensor, an image sensor, etc. When the splicing position of the strip steel is identified, the leveling machine can lift the strip steel at this position, thereby effectively avoiding the concave and convex structure formed at the splicing position from affecting the normal transportation of the strip steel, better protecting the strip steel, and improving the stability of the strip steel transportation.

[0032] In actual production, there are various mechanical devices for producing strip steel in the strip steel continuous production line, including an uncoiling system, a processing system, and a blanking system arranged in sequence along the strip steel production direction, such as Figures 1 to 4The decoiling system includes a stock preparation table, a loading machine 111, a decoiler 112, an uncoiling and feeding device 113, a first vertical guide roller 114, a pinch seven-roll leveling machine 115, a turning table 116, a head and tail shearing machine 117, a second vertical guide roller 118, a punching machine 119, a corner trimming machine 120, a splicing and welding machine 121, a third vertical guide roller 122, a plate edge rust removal device 123, a horizontal pinch edge rolling mill 124, a first loop 125 and an inclined positioning roller 126, which are arranged in sequence along the strip production direction. The processing system includes a sandblasting machine assembly 127, a horizontal positioning roller 128, a centering and guiding device 129, a first strip tensioner 130, a roll coater 131, a dryer 132, a fourth vertical guide roller 133, a second strip tensioner 134, a thick plate thirteen-roll leveling machine 135 and a thin plate thirteen-roll leveling machine 136, which are arranged in sequence along the strip production direction. The blanking system includes a second loop 137, a fifth vertical guide roller 138, a sizing five-roll leveling machine 139, a shearing machine 140, a receiving roller table 141, a conveying roller table 142, a blanking device 143, a side pushing device 144, a stacking flat car 145 and a stacking device. Here, the pinch seven-roll leveling machine 115, the thick plate thirteen-roll leveling machine 135 and the thin plate thirteen-roll leveling machine 136 can be respectively provided with the above-mentioned pallets capable of lifting the strip.

[0033] The decoiler 112 is equipped with double cylindrical heads and a hydraulic expansion and contraction structure, and has the functions of hydraulic centering and correcting the running direction of the steel coil. After the feeding truck 310 is positioned, the centering oil cylinder in the decoiler 112 drives the left and right cylindrical heads to enter the inner hole of the steel coil, and the expansion and contraction hydraulic cylinder in the decoiler 112 drives the expansion and contraction cylindrical heads to tighten the steel coil. Start the reduction motor to rotate the decoiler 112 to achieve active feeding and lead the strip head into the leveling machine. During normal operation, the clutch disengages the power, and the decoiler 112 feeds passively. Pneumatic brakes are provided on the left and right main shafts of the decoiler 112 to achieve tension decoiling and effectively avoid the deviation phenomenon of the sheet during operation.

[0034] An uncoiling and unwinding rubber pressure roller is arranged in the uncoiling and feeding device 113, and the lifting of the uncoiling and unwinding rubber pressure roller is controlled by a hydraulic cylinder. When the uncoiling and unwinding rubber pressure roller is pressed down by the oil cylinder, it is convenient for the operator to safely remove the steel coil packaging tape to unwind the steel coil. The reduction motor drives the rubber pressure roller, and the friction of the rubber pressure roller drives the steel coil to rotate to assist the decoiler 112 in feeding and lead the strip end into the leveling machine. When the unit is running normally, the uncoiling and unwinding rubber pressure roller is lifted.

[0035] The first vertical guide roller 114 guides the strip to enter the leveling machine correctly by two vertical rollers on both sides. Two limit rollers are also provided to prevent the strip from slipping out of the first vertical guide roller 114. Four first vertical guide rollers 114 are used for positioning in the plate width direction to prevent the steel plate from deviating.

[0036] The pinch roll seven-roll leveler 115 is used for leveling steel plates. It consists of pinch rolls and a seven-roll leveler. The pinch rolls mainly play a feeding role, and the lifting of the upper pinch roll is controlled by a hydraulic cylinder. The seven-roll leveler adopts a two-stage seven-roll leveling to complete the rough leveling of the head and tail of the strip. There are a total of 7 leveling rolls, 3 above and 4 below.

[0037] The tipping table 116 is used for the centralized collection of sheared head and tail waste and fixed-length waste plates. The sheared waste plates are pushed into the aggregate rack by the push plate driven by the motor chain, which is convenient for taking materials.

[0038] The head and tail cutting shear 117 is used to cut off the leading head, trailing tail and unqualified strip segments. The cutting method of the tail cutting shear: The hydraulic cylinder drives the upper tool holder to cut from top to bottom. The clearance between the upper and lower blade edges can be quickly adjusted using an adjustment screw.

[0039] The second vertical guide roll 118 guides the steel plate to correctly enter the corner cutting machine 120 by two vertical rollers on both sides. The guiding width is hydraulically adjusted by an oil cylinder, and the adjustment range is between 900 mm and 1500 mm.

[0040] During production, the corner cutting machine 120 has various functions, such as removing burrs and trimming edges, adjusting the shape and angle of the steel strip, etc. In this embodiment, the corner cutting machine 120 is used for wide plate corner cutting before strip splicing, performing oblique cutting or special-shaped cutting on the steel strip to meet different process requirements (such as welding grooves, splicing angles, etc.), which is convenient for splicing of wide and narrow strips and subsequent strip conveying.

[0041] The third vertical guide roll 122 is arranged after the plate splicing and welding machine 121, and guides the steel plate to the correct position by two vertical rollers on both sides, which is convenient for splicing and welding. The guiding width is hydraulically adjusted by an oil cylinder, and the adjustment range is 900 mm to 1500 mm.

[0042] The plate edge rust removal device 123 is used for rust removal of both sides of the steel strip, and a set of rust removal power heads is arranged on each side of the steel strip.

[0043] The horizontal pinch roll and edge rolling mill 124 consists of vertical guide rolls, a set of edge rolling rolls and a set of horizontal pinch rolls. The pinch rolls are powered, which is convenient for feeding and adjusting the front and rear positions of the strip during splicing and welding. The edge rolling rolls are used for flattening the wavy edges (less than 90 degrees) of the plate edge to prevent damage to the rolls and coating of the rolls.

[0044] The first loop 125 can continuously supply the subsequent units with strip steel at a set speed, for example, between 0 m / min and 36 m / min. When the first loop 125 is operating normally, the amount of strip steel stored in the memory should be the minimum amount to meet the equipment operation. The feeding speed and the discharging speed should be relatively consistent. When the strip steel is approaching coil change, the speed is increased to store materials to avoid long-term heavy-load operation of the loop. The first loop 125 includes a front steering device, a rear steering device, an outer cage, an inner cage, a storage tray, a spiral chute, a pinch roll, and a pinch roll drive device. The front steering device is responsible for gradually twisting the strip steel in the horizontal state into a vertical state through a guide roll group to ensure that the strip steel enters the spiral chute in the correct posture. The rear steering device restores the strip steel in the inner circle of the storage tray from the vertical state to the horizontal state for easy discharging to the subsequent units. The outer cage is used to fix the storage path of the outer circle of the strip steel to prevent the strip steel from loosening and falling off. It adopts a rotary design. The outer cage turntable drives the loop rolls to rotate through a drive device, which not only participates in the strip steel conveying but also helps to form a spiral track. The inner cage serves as the inner circle reference for strip steel storage and is linked with the central discharging device. The strip steel is stably discharged from the inner circle through a bevel gear transmission system. The storage tray is the core area for dynamically storing strip steel. An annular storage space is formed by the distance between the inner and outer cages. It adopts a fixed-ring or variable-ring design, actively expands during charging, and passively contracts during discharging to maintain the balance of the storage amount. The spiral chute is used to guide the strip steel to be stored along a spiral track, and the friction loss is reduced through wear-resistant roller paths. The pinch roll is composed of pinch rollers, a hydraulic / pneumatic system, and a guiding device. The speed of the strip steel entering the storage tray is controlled by the clamping force. For example, it adopts an upper and lower double-drive structure, and the power transmission is realized through a coupling and a transmission shaft. The pinch roll drive device adopts a variable-frequency speed regulation method to switch the charging speed (2-3 times the normal speed) and the discharging speed according to the production stage.

[0045] When using the first loop 125, when approaching coil change, cutting the head, splicing the strip, etc., and about to stop feeding the first loop 125, the first loop 125 appropriately increases the speed in advance to store a sufficient amount of strip steel. When the uncoiler 112 performs coil change, cutting the head, splicing the strip, etc., the stored materials in the loop can continuously supply the processing system, ensuring the continuity and stability of the automated production state. When the strip splicing is completed (sometimes some additional stored materials may be needed), the first loop 125 operates at the normal production speed, making the charging speed and the discharging speed basically equal, and maintaining the minimum stored material amount to meet the operation of the first loop 125 until approaching coil change, cutting the head, splicing the strip again, then increasing the speed and feeding more materials. The first loop 125 works in this cycle, fully ensuring continuous feeding to the processing system.

[0046] The steel strip released from the first loop 125 is in a horizontal state. At this time, it passes through the inclined positioning roller 126, and the inclined positioning roller 126 realizes the switching of the horizontal position of the steel strip to a position inclined at 30 degrees, meeting the requirement of the sandblasting process for the strip material inclined at 30 degrees. Then it is sent to the front horizontal positioning roller 128. The front horizontal positioning roller 128 is powered to facilitate feeding. When operating normally, the power is disengaged. A fixed idler limiting device is provided at the inlet of the inclined positioning roller 126.

[0047] The sandblasting machine assembly 127 is used for polishing the steel strip.

[0048] The horizontal positioning roller 128 is used to horizontally feed the inclined sandblasted strip material at the sandblasting machine.

[0049] The centering and guiding device 129 is used for centering and guiding the steel strip before the inlet of the steel strip tensioner. The steel plate is correctly guided into the subsequent process by the two vertical rollers on both sides. The guiding width is adjusted by a screw, and the adjustment range is 900 mm to 1500 mm.

[0050] The roll coater 131 is used for painting the steel strip.

[0051] The dryer 132 is equipped with a drying room, using natural gas as the raw material, and directly heated through a burner and a heating furnace.

[0052] The fourth vertical guide roller 133 guides the steel strip to correctly enter the subsequent process by the two vertical rollers on both sides. The guiding width is adjusted by a screw, and the adjustment range is between 900 mm and 1500 mm.

[0053] The heavy plate thirteen-roll leveling machine 135 is used for cold-state finishing and leveling of the bending deformation of the steel strip with a thickness of 3 mm to 6 mm and a width of 1500 mm, so that the steel plate obtains a uniform, smooth and flat surface. The heavy plate thirteen-roll leveling machine 135 adopts an upper and lower body structure. The lower row of working rollers is fixed on the lower machine base, and the upper row of working rollers is fixed on the movable crossbeam. Driven by two pressing motors, reducers and worm gears, the upper row of working rollers makes lifting and angular movement. To ensure the leveling accuracy, support rollers are provided for both the upper and lower rows of working rollers. All working rollers are driving rollers. The main motor enters the distribution box through the reducer and drives the working rollers through universal joints. The display device shows the lifting amount and inclination amount of the upper row of working rollers. The inlet and outlet pressing amounts can be set according to parameters such as plate thickness, plate width, material strength, or existing parameters in the database, and the automatic adjustment of the working roller inlet and outlet clearances, etc. can be realized.

[0054] The thin plate thirteen-roll leveling machine 136 is used for cold finishing leveling of steel plates with a thickness of 2 to 3 mm and a width of 1500 mm to bend and deform them, so that the steel plates obtain a uniform, smooth and flat surface. The thin plate thirteen-roll leveling machine 136 adopts an upper and lower body structure. The lower row of working rolls is fixed on the lower machine base, and the upper row of working rolls is fixed on the movable crossbeam. Driven by two screw-down motors, reducers and worm gears, the upper row of working rolls makes lifting and angular movement. To ensure the leveling accuracy, supporting rolls are provided for both the upper and lower rows of working rolls. All working rolls are driving rolls. The main motor enters the distribution box through the reducer and drives the working rolls through universal joints. The display device shows the lifting amount and tilting amount of the upper row of working rolls. The inlet and outlet screw-down amounts can be set according to parameters such as plate thickness, plate width, material strength, or existing parameters in the database, to realize automatic adjustment of the clearances at the inlet and outlet of the working rolls, etc.

[0055] The second loop 137 is used to control the speed regulation of the strip steel entering the sizing device and buffer the strip steel during stop-shearing, and cooperate with the processing speed to control the position of the steel strip in the loop pit by an electric eye.

[0056] The fifth vertical guide roll 138 mainly uses the two vertical rollers on both sides to guide the steel plate to correctly enter the subsequent process, and adjusts the guiding width with a hydraulic cylinder, and the adjustment range is 900 mm to 1600 mm.

[0057] The sizing five-roll leveling machine 139 is mainly used for micro-leveling, high-speed feeding and preventing sizing accuracy errors caused by slipping of the strip steel during movement.

[0058] The receiving roller table 141 and the conveying roller table 142 are similar in structure, both including a conveying roller frame and a transmission device. Each conveying roller on the conveying roller frame is driven by a chain and driven by a speed-regulating motor to convey the strip steel to the subsequent process.

[0059] The sheet material arranging device 143 is mainly used for arranging sheet materials. For example, the longitudinal baffle and the transverse baffle inside are driven by an internal air cylinder to arrange the materials once every 2 sheets.

[0060] The side pushing device 144 includes an air cylinder and a transverse pushing plate. The transverse pushing plate is driven by the air cylinder to arrange the materials once every 2 sheets.

[0061] The steel plate after being sheared by the shearing machine is sent to the stacking device by the conveyor. After being neatly collected by the cooperation of the pneumatic and hydraulic mechanisms, it is transported out by the discharging trolley.

[0062] Such as Figure 5 And Figure 6As shown, the loading machine 111 includes a transfer base 200, a material passing mechanism, and a measuring mechanism. Two transfer bases 200 are arranged at intervals in the left-right direction. The material passing mechanism has a material passing cart 310 that can move closer to or away from the uncoiler 112. The material passing cart 310 is located between the two transfer bases 200. A support 320 that can protrude upward or retract downward into the transfer base 200 is provided on the material passing cart 310. The measuring mechanism includes a scale grating and an indicating grating. The scale grating and the indicating grating are respectively located on one side of the two transfer bases 200 away from each other. The scale grating and the indicating grating can form a measuring area above the transfer base 200.

[0063] In this loading machine 111, the steel coil to be uncoiled is loaded onto the transfer base 200. The left and right transfer bases 200 respectively support the left and right end positions of the steel coil. At this time, the steel coil is located in the measuring area formed by the scale grating and the indicating grating in the measuring mechanism. The scale grating is used to generate the signals required for measurement. The indicating grating interacts with the scale grating to generate Moiré fringes. The displacement is measured by the change of the Moiré fringes. The outer diameter size of the steel coil is measured by the scale grating and the indicating grating, so as to measure the central position of the steel coil. Then the material passing cart 310 moves to directly below the steel coil, and the support 320 moves upward and protrudes from the transfer base 200 to lift the steel coil, and the steel coil is lifted according to the central position of the steel coil, so that the steel coil leaves the transfer base 200 and the central position of the steel coil reaches the required height. Then the material passing cart 310 moves to an external device, such as the uncoiler 112. The uncoiler 112 positions the steel coil, and the support 320 can move downward to leave the steel coil, completing the loading of the steel coil. In this way, after accurately measuring the size position of the steel coil by the measuring grating, the support 320 lifts the steel coil to the required installation height and transports it for loading, reducing manual operation, greatly improving the efficiency of loading the steel coil, and being applicable to steel coils of different sizes.

[0064] To improve the stability of the steel coil placed on the transfer base 200 and the support 320, a first limit groove 210 for accommodating and limiting the steel coil can be provided on the transfer base 200, and a second limit groove 321 for accommodating and limiting the steel coil is provided on the support 320.

[0065] The scale grating and the indicating grating in the measuring mechanism can be kept in a vertically installed state and are respectively fixed on the sides of two mounting seats 410 away from each other. At this time, if it is necessary to move the steel coil to the transfer seat 200, it is necessary to transfer the steel coil in the front-back direction to approach the transfer seat 200. However, in actual operation, there are situations where it is necessary to move the steel coil in the left-right direction to approach the transfer seat 200. At this time, when the steel coil moves, it needs to avoid the positions of the scale grating and the indicating grating. Therefore, in order to more conveniently transfer the steel coil to the transfer seat 200, in this embodiment, the measuring mechanism includes a mounting seat 410, a rotary driving member 420 and a gantry 430. The mounting seats 410 are respectively arranged on the sides of two transfer seats 200 away from each other. The left and right sides of the bottom of the gantry 430 are respectively rotatably connected to the two mounting seats 410. The rotary driving member 420 is drivingly connected to the gantry 430. The rotary driving member 420 can drive the gantry 430 to rotate to a vertical or horizontal state. The rotary driving member 420 can adopt a rotary cylinder or a motor and other rotary driving sources. The scale grating and the indicating grating are respectively located on the left and right sides of the gantry 430. The mounting seats 410 are respectively arranged on the sides of two transfer seats 200 away from each other. The left and right sides of the bottom of the gantry 430 are respectively rotatably connected to the two mounting seats 410. When loading the steel coil onto the transfer seat 200, the rotary driving member 420 drives the gantry 430 to rotate to a horizontal state, reducing the height of the gantry 430 together with the scale grating and the indicating grating. At this time, it is convenient to transfer the steel coil to the transfer seat 200, improving the efficiency of loading the steel coil onto the transfer seat 200 and better protecting the scale grating and the indicating grating, preventing the scale grating or the indicating grating from being damaged during the steel coil loading process. When the steel coil loading onto the transfer seat 200 is completed, the rotary driving member 420 drives the gantry 430 to rotate to a vertical state. At this time, the scale grating and the indicating grating can be raised, enabling the steel coil to enter the measurement area and realizing the size measurement of the steel coil.

[0066] In order to ensure that the gantry 430 can be quickly and accurately rotated to a vertical state, in this embodiment, a limiting frame is arranged beside one of the mounting seats 410. When the gantry 430 rotates to a vertical state, the gantry 430 abuts against the limiting frame. In practical applications, elastic rubber can be arranged on the side of the limiting frame close to the gantry 430 to play a buffering role when the gantry 430 rotates close to the limiting frame. The limiting frame can provide a limit for the rotation of the gantry 430, preventing the gantry 430 from rotating excessively. When the gantry 430 rotates to a vertical state, the gantry 430 abuts against the limiting frame. At this time, the limiting frame can be used to limit the excessive rotation of the gantry 430, improving the accuracy of rotating the scale grating and the indicating grating in place.

[0067] A driving source capable of driving the support 320 to move up and down is provided on the material passing vehicle 310. Specifically, a lifting driving member is provided on the material passing vehicle 310, and the lifting driving member is drivingly connected to the middle bottom side of the support 320. A guide post 330 is connected to the bottom side of the support 320, and the guide post 330 is slidably connected to the material passing vehicle 310 in the up and down direction. A plurality of guide posts 330 are arranged around the lifting driving member. For example, the number of guide posts 330 is four, and the four guide posts 330 are arranged in a rectangle on the material passing vehicle 310. The lifting driving member can provide a driving force in the up and down direction to the support 320. When it is necessary to lift the steel coil away from the transfer seat 200, the lifting driving member applies a force to the middle position of the support 320, causing the support 320 to rise, and using the sliding fit between the plurality of guide posts 330 and the material passing vehicle 310 to improve the stability of the upward movement of the support 320. When the feeding of the steel coil is completed, the lifting driving member drives the support 320 to move down and reset. At this time, the plurality of guide posts 330 also slide downward in the material passing vehicle 310, which is beneficial to ensuring the stability of the downward movement of the material passing vehicle 310.

[0068] The lifting driving member can be a cylinder or a hydraulic cylinder. In order to improve the accuracy of controlling the up and down movement of the support 320, in this embodiment, the lifting driving member includes a lead screw 341 connected between the support 320 and the material passing vehicle 310, and a first motor 342 drivingly connected to the lead screw 341. When it is necessary to drive the support 320 to move up and down, the motor drives the lead screw 341, thereby driving the support 320 to move up and down. In this way, the accuracy of adjusting the height of the support 320 can be improved, so that the steel coil can be moved to the required height more accurately.

[0069] In the above embodiment, the number of the first motors 342 can be only one. In order to increase the torque output by the lead screw 341, in this embodiment, a speed reducer is provided on the material passing vehicle 310, and the number of the first motors 342 is multiple. The multiple first motors 342 are drivingly connected to the lead screw 341 through the speed reducer. In practical applications, the speed reducer can be a planetary gear speed reducer. The output ends of the multiple first motors 342 are respectively connected with main gears, and the multiple main gears are engaged at different positions of the planetary gear speed reducer. When it is necessary to drive the support 320 to move up and down, the multiple first motors 342 work simultaneously, driving the lead screw 341 to rotate through the speed reducer. In this way, the output torque can be increased, the load of the support 320 for lifting the steel coil can be increased, and the stability of adjusting the height of the steel coil up and down can be improved.

[0070] The material passing mechanism is provided with a driving source capable of driving the material passing cart 310 to move back and forth. For example, a cylinder, a hydraulic cylinder or an electric lead screw can be used to drive the material passing cart 310 to move. In this embodiment, the material passing mechanism includes a guide rail 351 located below the material passing cart 310. A plurality of rollers 352 are arranged on the bottom side of the material passing cart 310. The plurality of rollers 352 are respectively connected and engaged with the guide rail 351. A second motor 353 is arranged on the material passing cart 310. The second motor 353 is drivingly connected to at least one of the rollers 352. When it is necessary to transfer the steel coil to an external device, the second motor 353 drives at least one roller 352 to rotate. At this time, the roller 352 driven by the second motor 353 is the driving wheel, and the remaining rollers 352 are the driven wheels. The plurality of rollers 352 move on the guide rail 351, so as to realize the forward and backward movement of the material passing cart 310. In practical applications, a plurality of guide rails 351 can be arranged side by side. For example, two guide rails 351 are arranged at intervals. Two rollers 352 are respectively arranged at the positions corresponding to the two guide rails 351 on the material passing cart 310. At this time, the second motor 353 is drivingly connected to two of the rollers 352, and the other two rollers 352 are used as driven wheels.

[0071] The first steel strip tensioner 130 is similar in structure to the second steel strip tensioner 134. As Figure 7 With Figure 8 shown, it includes a base frame 500, a first conveying mechanism and a second conveying mechanism. The first conveying mechanism includes a third motor 610 and a first conveying roller 620. The first conveying roller 620 is rotatably connected to the base frame 500 along the axis in the left-right direction. The third motor 610 is drivingly connected to the first conveying roller 620. The second conveying mechanism includes a fourth motor 710 and a second conveying roller 720. The second conveying roller 720 is rotatably connected to the base frame 500 along the axis in the left-right direction. The fourth motor 710 is drivingly connected to the second conveying roller 720. The first conveying roller 620 and the second conveying roller 720 are arranged at intervals in the front-back direction. The height of the first conveying roller 620 is higher than the height of the second conveying roller 720.

[0072] In this steel strip tensioning machine, the steel strip enters the steel strip tensioning machine after passing through the previous station, and is then led to the next station after passing through the steel strip tensioning machine. Inside the steel strip tensioning machine, since the height of the first conveyor roller 620 is higher than that of the second conveyor roller 720, the first conveyor roller 620 and the second conveyor roller 720 are staggered from each other. At this time, one of the conveyor rollers can be used to introduce the steel strip, and the other conveyor roller can be used to send out the steel strip. When the first conveyor roller 620 is closer to the previous station, the steel strip can first pass under the second conveyor roller 720, then bypass the second conveyor roller 720 upward, and then lead the steel strip back, bypass the first conveyor roller 620 from the bottom side of the first conveyor roller 620, and finally lead out from the top side of the first conveyor roller 620. Or when the second conveyor roller 720 is closer to the previous station, the steel strip first passes over the first conveyor roller 620, then bypasses the first conveyor roller 620 downward, and then leads the steel strip back, bypasses the second conveyor roller 720 from the top side of the second conveyor roller 720, and finally leads out from the bottom side of the second conveyor roller 720. No matter which way the steel strip passes through the steel strip tensioning machine, when the steel strip passes through the first conveyor roller 620 and the second conveyor roller 720, the rotation speeds of the first conveyor roller 620 and the second conveyor roller 720 can be controlled by the third motor 610 and the fourth motor 710 respectively. The conveyor roller closer to the next station maintains a stable rotation speed, so as to stably output the steel strip, and the conveyor roller closer to the previous station can adjust its rotation speed according to the feeding speed of the steel strip to achieve buffering of the steel coil. In this way, by adjusting the rotation speeds of the first conveyor roller 620 and the second conveyor roller 720, the fed steel strip can be buffered and adjusted and then stably sent out, effectively preventing the phenomenon that the steel strip is damaged due to unstable tension when being fed into the next station, thereby improving the processing quality of the steel strip.

[0073] The steel strip tensioning machine further includes a first pressing mechanism. The first pressing mechanism has a first pressing roller 810 that can move up and down. The first pressing roller 810 can move downward closer to or upward away from the first conveyor roller 620. When the steel strip needs to pass over the top side of the first conveyor roller 620, the first pressing roller 810 can be moved upward away from the first conveyor roller 620. At this time, the space between the first pressing roller 810 and the first conveyor roller 620 is opened, which is convenient for the steel strip to pass through between the first pressing roller 810 and the first conveyor roller 620. Then the first pressing roller 810 moves downward to press the steel strip against the first pressing roller 810, so that the steel strip fits more closely on the first conveyor roller 620, thereby further improving the stability of the first conveyor roller 620 in conveying the steel strip.

[0074] Further, the first pressing mechanism includes a bracket 820, a first swing frame 830 and a first linear drive 840. The bracket 820 is connected to the base frame 500. One side of the first swing frame 830 is rotatably connected to the top end of the bracket 820. The rotation axis of the first swing frame 830 at the top end of the bracket 820 extends in the front-rear direction. The fixed end of the first linear drive 840 is rotatably connected to the base frame 500. In practical applications, a support structure can also be additionally installed on the base frame 500 to raise the installation position of the first linear drive 840. The movable end of the first linear drive 840 is rotatably connected to the other side of the first swing frame 830. The rotation axes of the fixed end and the movable end of the first linear drive 840 both extend in the front-rear direction. The first pressing roller 810 is arranged on the bottom side of the first swing frame 830. The first linear drive 840 mainly provides a driving force for the first swing frame 830 to rotate through reciprocating movement in the linear direction. There are various structural forms. For example, the first linear drive 840 can adopt a cylinder, a hydraulic cylinder or an electric screw rod, etc. The bracket 820 raises the position of the first swing frame 830, so that the first pressing roller 810 is installed above the first conveying roller 620. When it is necessary to press the first pressing roller 810 down to the first conveying roller 620, the first linear drive 840 drives the first swing frame 830 to rotate downward on the bracket 820, so that the first pressing roller 810 approaches the first conveying roller 620. On the contrary, the first linear drive 840 drives the first swing frame 830 to rotate upward on the bracket 820, so that the first pressing roller 810 moves upward away from the first conveying roller 620.

[0075] Both ends of the first pressing roller 810 can be directly rotatably connected to the first swing frame 830 through bearings. In order to increase the pressure of the first pressing roller 810 pressing the steel strip against the first conveying roller 620, in this embodiment, two first bearing seats 831 are spaced in the front-rear direction and connected to the bottom side of the first swing frame 830. Both ends of the first pressing roller 810 are respectively rotatably connected in the two first bearing seats 831. First buffer pads are respectively arranged between the two first bearing seats 831 and the first swing frame 830. In practical applications, the first buffer pads can be made of rubber. During installation, bolts can be used to pass through the first bearing seats 831, the first buffer pads, the first swing frame 830 and then connect nuts, and the nuts are used to tighten and position the first bearing seats 831 on the first swing frame 830. When the first swing frame 830 rotates downward so that the first pressing roller 810 moves downward and approaches the first conveying roller 620, the first buffer pads between the two first bearing seats 831 and the first swing frame 830 can generate elastic deformation, so as to provide a pre-tightening force for the first pressing roller 810 to press the steel strip downward, so that the first pressing roller 810 presses the steel strip more tightly against the outside of the first conveying roller 620. When the thickness of the steel strip changes, the first pressing roller 810 can also provide a stable downward pressure, effectively improving the overall practicality.

[0076] The steel strip tensioning machine further includes a second pressing mechanism, which has a second pressing roller 910 that can move up and down. The second pressing roller 910 can move upward close to or downward away from the second conveying roller 720. When the steel strip needs to pass under the second conveying roller 720, the second pressing roller 910 can be moved downward away from the second conveying roller 720. At this time, the space between the second pressing roller 910 and the second conveying roller 720 is opened, facilitating the passage of the steel strip through the space between the second pressing roller 910 and the second conveying roller 720. Then, the second pressing roller 910 moves upward to press the steel strip against the second pressing roller 910, making the steel strip fit more closely on the second conveying roller 720, thereby further improving the stability of the second conveying roller 720 in conveying the steel strip.

[0077] There is a driving force in the second pressing mechanism that can drive the second pressing roller 910 to move back and forth. It can directly drive the second pressing roller 910 to move close to or away from the second conveying roller 720 in a linear motion manner. In this embodiment, however, it drives the second pressing roller 910 to move close to or away from the second conveying roller 720 in a rotational motion manner. Specifically, the second pressing mechanism includes a second swing frame 920 and a second linear drive 930. The middle part of the second swing frame 920 is rotatably connected to the base frame 500, and the rotation axis in the middle of the second swing frame 920 extends in the front-rear direction. The fixed end of the second linear drive 930 is rotatably connected to the base frame 500, and the movable end of the second linear drive 930 is rotatably connected to one side of the second swing frame 920. The rotation axes of the fixed end and the movable end of the second linear drive 930 both extend in the front-rear direction. The second pressing roller 910 is arranged on the other side of the second swing frame 920. The second linear drive 930 drives the second swing frame 920 to rotate by providing a reciprocating driving force in the linear direction. For example, the second linear drive 930 can be a cylinder, a hydraulic cylinder, or an electric screw rod, etc. When it is necessary to move the second pressing roller 910 upward to the second conveying roller 720, the second linear drive 930 applies a downward pressure from one side of the second swing frame 920 to drive the second swing frame 920 to rotate on the support 820. At this time, the other side of the second swing frame 920 drives the second pressing roller 910 to rotate upward close to the second conveying roller 720. Conversely, the second linear drive 930 applies an upward pulling force from one side of the second swing frame 920 to drive the second swing frame 920 to rotate on the support 820, so that the other side of the second swing frame 920 drives the second pressing roller 910 to move downward away from the second conveying roller 720.

[0078] Similarly, both ends of the second conveying roller 720 can be directly installed in the base frame 500 through bearings. In order to increase the pressure of the second pressing roller 910 pressing the steel belt against the second conveying roller 720, in this embodiment, second bearing seats are arranged on the base frame 500 at intervals in the front-back direction. The front and back sides of the middle part of the base frame 500 are respectively rotatably connected to the two second bearing seats. Second buffer pads are respectively arranged between the two second bearing seats and the base frame 500. In practical applications, the second buffer pads can be made of rubber. During installation, bolts can be used to pass through the second bearing seats, the second buffer pads, and the second swing frame 920 and then connect nuts, and the nuts are used to tighten and position the second bearing seats on the second swing frame 920. When the second swing frame 920 rotates downward so that the second pressing roller 910 moves upward and approaches the second conveying roller 720, the second buffer pads between the two second bearing seats and the second swing frame 920 can generate elastic deformation, thereby providing a pre-tightening force for the second pressing roller 910 to press the steel belt, so that the second pressing roller 910 presses the steel belt more tightly against the outer side of the second conveying roller 720. When the thickness of the steel belt changes, the second pressing roller 910 can also provide a stable pressing force, effectively improving the overall practicality.

[0079] The steel belt tensioners are arranged on both the feeding side and the discharging side of the dryer 132. When the steel belt is input into the dryer 132, it first passes through a steel belt tensioner, then enters the dryer 132 for drying, and then passes through another steel belt tensioner when output to the next working station. When the steel belt passes through the steel belt tensioner, by adjusting the rotation speeds of the first conveying roller 620 and the second conveying roller 720 in the steel belt tensioner, the fed steel belt can be buffered and adjusted and then stably sent out, effectively preventing the phenomenon that the steel belt is damaged due to unstable tension when being fed into the steel belt tensioner, thereby improving the processing quality of the steel belt.

[0080] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can also make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. Continuous strip production line, characterized in that: Including: An uncoiler (112) for unwinding a strip from a steel coil; A butt welding machine (121) for welding the tail of one strip to the head of another strip and outputting a continuous strip; A first loop (125) for transferring and conveying the continuous strip and outputting the strip at a constant speed; A processing system for processing the strip output at a constant speed; A shearing machine (140) for cutting the processed strip; A second loop (137) located between the processing system and the shearing machine (140), the second loop (137) for transferring and buffering the processed strip and feeding the strip into the shearing machine (140) at a constant speed according to the opening of the shearing machine (140).

2. The continuous strip production line according to claim 1, characterized in that: It further includes a punching machine (119), the punching machine (119) is located between the uncoiler (112) and the butt welding machine (121), the punching machine (119) is used for punching the strip unwound, the processing system includes a leveling machine, a detection sensor is arranged in the leveling machine, the detection sensor is used for detecting the punching on the strip, and a supporting plate capable of lifting the strip is arranged in the leveling machine.

3. The continuous strip production line according to claim 1, characterized in that: It further includes a loading machine (111), the loading machine (111) includes a transfer seat (200), a strip passing mechanism and a measuring mechanism, two transfer seats (200) are arranged at intervals in the left-right direction, the strip passing mechanism has a strip passing cart (310) capable of moving close to or away from the uncoiler (112), the strip passing cart (310) is located between the two transfer seats (200), a supporting seat (320) capable of protruding upward or retracting downward into the transfer seat (200) is arranged on the strip passing cart (310), the measuring mechanism includes a scale grating and an indicating grating, the scale grating and the indicating grating are respectively located on one side of the two transfer seats (200) away from each other, and the scale grating and the indicating grating can form a measuring area above the transfer seat (200).

4. The continuous strip production line according to claim 3, wherein: The measuring mechanism includes a mounting seat (410), a rotation driving member (420) and a gantry (430), mounting seats (410) are respectively arranged on one side of the two transfer seats (200) away from each other, the left and right sides of the bottom of the gantry (430) are respectively rotatably connected to the two mounting seats (410), the rotation driving member (420) is drivingly connected to the gantry (430), the rotation driving member (420) can drive the gantry (430) to rotate to a vertical or horizontal state, and the scale grating and the indicating grating are respectively located on the left and right sides of the gantry (430).

5. The continuous strip production line according to claim 4, characterized in that: A lifting driving member is arranged on the strip passing cart (310), the lifting driving member is drivingly connected to the middle bottom side of the supporting seat (320), a guide post (330) is connected to the bottom side of the supporting seat (320), the guide post (330) is slidably connected to the strip passing cart (310) in the up-down direction, and a plurality of guide posts (330) are arranged around the lifting driving member.

6. The continuous strip production line according to claim 5, characterized in that: The lifting driving member includes a lead screw (341) connected between the support base (320) and the material passing cart (310), and a first motor (342) drivingly connected to the lead screw (341). A speed reducer is provided on the material passing cart (310). There are multiple first motors (342), and the multiple first motors (342) are drivingly connected to the lead screw (341) through the speed reducer.

7. The continuous strip production line according to claim 1, characterized in that: The processing system includes a steel strip tensioner, and the steel strip tensioner includes a base frame (500), a first conveying mechanism and a second conveying mechanism. The first conveying mechanism includes a third motor (610) and a first conveying roller (620). The first conveying roller (620) is rotatably connected to the base frame (500) about an axis in the left-right direction, and the third motor (610) is drivingly connected to the first conveying roller (620). The second conveying mechanism includes a fourth motor (710) and a second conveying roller (720). The second conveying roller (720) is rotatably connected to the base frame (500) about an axis in the left-right direction, and the fourth motor (710) is drivingly connected to the second conveying roller (720). The first conveying roller (620) and the second conveying roller (720) are arranged at intervals in the front-rear direction, and the height of the first conveying roller (620) is higher than the height of the second conveying roller (720).

8. The continuous strip production line according to claim 7, characterized in that: The steel strip tensioner further includes a first pressing mechanism, and the first pressing mechanism has a first pressing roller (810) that can move up and down. The first pressing roller (810) can move downward close to or upward away from the first conveying roller (620).

9. The continuous strip production line according to claim 7, characterized in that: The steel strip tensioner further includes a second pressing mechanism, and the second pressing mechanism has a second pressing roller (910) that can move up and down. The second pressing roller (910) can move upward close to or downward away from the second conveying roller (720).

10. The continuous strip production line according to claim 7, wherein: The processing system further includes a dryer (132), and the steel strip tensioners are provided on both the feeding side and the discharging side of the dryer (132).

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