Tinplate cold rolling device

Abstract

The invention relates to the technical field of tinplate machining, in particular to a tinplate cold rolling device which comprises a rack. The controller is fixedly connected to the outer side wall of the rack; a flattening mechanism; an electric push rod is started to drive a lifting frame to move, the lifting frame drives an upper working roller to move when moving, a pressure sensor is pressed when the lifting frame moves, and the pressure at the moment is monitored through the pressure sensor; when the tinned plate passes through the second upper working roller, a second electric push rod is controlled under the action of the controller, the electric push rod drives the connected lifting frame to move through the output end, the lifting frame drives the connected upper working roller to move when moving, and the lifting frame presses the corresponding pressure sensor when moving; the pressure sensor is used for monitoring the pressure at the moment, and when the difference value of the two pressures is not smaller than 1500 KN, the controller controls the second electric push rod to be closed, so that the rolling force of the two leveling mechanisms is adjusted, and the uniformity and stability of the roughness of the tin plate are kept.

Description

Technical Field

[0001] The invention relates to the technical field of tinplate processing, in particular to a tinplate cold rolling device. Background Art

[0002] Tinplate is also called tinplate. During the processing, improper edge roughness adaptation and improper adjustment of passivation process parameters may lead to the coating adhesion level not meeting the requirements, resulting in increased costs. Poor coating adhesion will cause the paint film on the edge of the finished can to fall off during subsequent user processing, affecting continuous production and resulting in batches of closed products and waste. Moreover, poor coating adhesion will also reduce the product's corrosion resistance, resulting in corrosion and leakage of cans during the use of subsequent products.

[0003] A Chinese patent with publication number CN205236672U discloses a double-frame leveling machine, including a first frame and a second frame, the first frame is provided with a first upper supporting roller, a first lower supporting roller, a first upper intermediate roller, a first lower intermediate roller, a first upper working roller, and a first lower working roller, the second frame is provided with a second upper supporting roller, a second lower supporting roller, a second upper intermediate roller, a second lower intermediate roller, a second upper working roller, and a second lower working roller, the surfaces of the first upper working roller and the first lower working roller have a surface layer treated by electric spark roughness, the surfaces of the second upper working roller and the second lower working roller have a surface layer treated by grinding, the roughness of the surface layer of the first upper working roller and the first lower working roller is greater than the roughness of the surface side of the second upper working roller and the second lower working roller, so as to meet the requirements of various surface morphologies of tinplate, and the surface of the produced steel coil meets the requirements.

[0004] In the above technology, during production, the initial rolling stability of the working rolls after the new rolls are replaced is poor, the roughness is between 0.14-0.26μm, and there are problems of uneven and low roughness. As a result, the adhesion of the passivation film of the tinplate is poor, resulting in the peeling of the coating under large impact deformation.

[0005] To this end, the present invention provides a tinplate cold rolling device. Summary of the invention

[0006] To this end, the technical problem to be solved by the present invention is to overcome the problems of uneven and low roughness in the prior art, which leads to poor adhesion of the passivation film of the tinplate and resulting in the peeling of the coating under large impact deformation.

[0007] In order to solve the above technical problems, the present invention provides a tinplate cold rolling device, comprising:

[0008] frame;

[0009] A controller is fixedly connected to the outer side wall of the frame;

[0010] There are two leveling mechanisms, both of which are arranged on the frame;

[0011] The leveling mechanisms each include an upper supporting roller, a lower supporting roller, an upper working roller and a lower working roller, and the leveling mechanisms each include four pillars, the tops of the four pillars are fixedly connected to a top plate, the tops of the top plates are fixedly connected to an electric push rod, and the output ends of the electric push rods are fixedly connected to a lifting frame; the upper supporting roller and the upper working roller are rotatably connected to the lifting frame through bearings; four lower fixed seats are fixedly connected to the two inner side walls of the frame, and the tops of the lower fixed seats are rotatably connected to the upper fixed seats through pin shafts; one end of the lower supporting seat and the lower working roller are arranged between the upper fixed seat and the lower fixed seat through a bearing seat; fastening bolts are installed on the lower fixed seat and the upper fixed seat, wherein a pressure sensor is provided on the top of the upper upper fixed seat, and the pressure sensor is electrically connected to the controller; the electric push rods are electrically connected to the controller.

[0012] In one embodiment of the present invention, the top of the upper fixed seat is fixedly connected to a sleeve, and the pressure sensor is fixedly connected to the bottom of the sleeve; the top of the sleeve is slidably connected to a connecting rod, and the top of the connecting rod is fixedly connected to the bottom of the lifting frame; the bottom of the connecting rod is fixedly connected to a spring, and the bottom of the spring is fixedly connected to the top of the pressure sensor.

[0013] In one embodiment of the present invention, two limiting wheels are provided at the feed end of the frame; a bidirectional ball screw is rotatably connected between the two inner walls of the frame via a bearing, two movable plates are threadedly connected to the bidirectional ball screw, the tops of the movable plates are fixedly connected to mounting seats, and the limiting wheels are rotatably connected to the mounting seats via a rotating shaft; a first motor is fixedly connected to the side wall of the frame, the output shaft of the first motor is rotatably connected to the frame via a bearing, and the output shaft of the first motor is fixedly connected to one end of the bidirectional ball screw.

[0014] In one embodiment of the present invention, one end of the frame close to the limiting wheel is rotatably connected to two delivery pipes through a rotating rod, a plurality of air nozzles are installed at the bottom of the delivery pipes, and air valves are installed on the air nozzles; a side panel is fixedly connected to the side wall of the frame, a fan is fixedly connected to the top of the side panel, and a connecting pipe is connected and fixed to the air outlet of the fan, one end of the connecting pipe passes through the rotating rod and is connected and fixed to one end of the two delivery pipes.

[0015] In one embodiment of the present invention, one end of the rotating rod away from the connecting pipe is fixedly connected to a rotating wheel, and a belt is provided between the two rotating wheels; a swing rod is fixedly connected to the lower one of the rotating rods, and the swing rod is rotatably connected to the side wall of the frame through a pin shaft, and a driving mechanism is provided on the swing rod.

[0016] In one embodiment of the present invention, the driving mechanism includes an L-shaped plate fixedly connected to the frame, a second motor is fixedly connected to the L-shaped plate, an output shaft of the second motor is fixedly connected to a rotating rod, and an end of the rotating rod away from the output shaft of the second motor is fixedly connected to a limiting column; a sliding opening is opened on the swing rod, and the limiting column slides in the sliding opening.

[0017] In one embodiment of the present invention, both ends of the frame are rotatably connected to guide rollers via bearings; two tensioning rollers are provided between the guide rollers and the upper working roller, and the tensioning rollers are rotatably connected to the frame via bearings.

[0018] In one embodiment of the present invention, four support columns are fixedly connected to the bottom of the frame, and the support columns are respectively arranged at four corners of the bottom of the frame.

[0019] In one embodiment of the present invention, four sliding columns are fixedly connected to the top of the lifting frame, and the sliding columns are slidably connected to the top plate.

[0020] In one embodiment of the present invention, two guide rods are fixedly connected between the two inner walls of the frame, and the movable plates are slidably connected to the guide rods.

[0021] The above technical solution of the present invention has the following advantages compared with the prior art:

[0022] The tinplate cold rolling device described in the present invention requires the upper working roll and the lower working roll to be in a stable mileage for leveling production to ensure the roughness, control accuracy and stability of the tinplate surface through the cooperation of a pressure sensor, a controller, an upper working roll and a lower working roll. The mileage is 100-500Km. At the same time, in order to ensure the transfer rate and uniformity of the roughness, it is required to increase the rolling force difference between the two leveling mechanisms by no less than 1500KN. When the tinplate passes through the first upper working roll, the pressure needs to be increased. By starting the electric push rod, the electric push rod drives the lifting frame to move through the output end. The lifting frame drives the upper working roll to move when it moves, and the lifting frame moves when it moves. The pressure sensor is compressed to monitor the pressure at this time through the pressure sensor; when the tinplate passes through the second upper working roller, the second electric push rod is controlled under the action of the controller, and the electric push rod drives the connected lifting frame to move through the output end. The lifting frame drives the connected upper working roller to move when it moves, and the lifting frame compresses the corresponding pressure sensor when it moves. The pressure at this time is monitored by the pressure sensor. When the difference between the two pressures is not less than 1500KN, the controller controls the second electric push rod to close, thereby adjusting the rolling force of the two flattening mechanisms, so as to maintain the uniformity and stability of the roughness of the tinplate, and realize the function of improving the adhesion of the passivation film of the tinplate.

[0023] The tinplate cold rolling device described in the present invention is configured with a limiting wheel to limit the tinplate. The first motor is turned on and the output shaft of the first motor drives the bidirectional ball screw to rotate. A ball nut seat is provided between the bidirectional ball screw and the movable plate, and the radial movement of the movable plate is ensured by the ball nut seat. The movable plate is driven to move in opposite directions by the bidirectional ball screw, and the mounting seat is driven to move in opposite directions by the movable plate, and the limiting wheel is driven to move in opposite directions by the mounting seat until the tinplate is limited between the two limiting wheels to prevent the tinplate from running off, and the tinplate is rolled with twill.

[0024] The tinplate cold rolling device described in the present invention is provided with a rotating rod and a swinging rod. By turning on the fan, the fan conveys gas through the connecting pipe, and the gas in the connecting pipe is sprayed on the tinplate through the conveying pipe and the air nozzle, so that the tinplate is air-dried, and the air nozzle is installed with an air valve. According to the width of the tinplate, the opening and closing of the paint spraying nozzle is controlled by the air valve, so as to save energy; at the same time, by turning on the second motor, the output shaft of the second motor drives the rotating rod to rotate, and the rotating rod drives the limit column to rotate. When the limit column rotates, it slides in the sliding port, and the swinging rod is driven to swing back and forth around the pin shaft through the sliding port. When the swinging rod swings, it can drive the connected rotating rod to swing back and forth, and the rotating rod drives the connected conveying pipe and the air nozzle to rotate; at the same time, the rotating rod drives the rotating wheel to rotate, the rotating wheel drives the belt to rotate, and the belt drives another rotating wheel to rotate, and the rotating wheel drives the connected rotating rod, the conveying pipe and the air nozzle to rotate, and the air nozzles above and below the tinplate swing back and forth to spray air, so as to realize the function of fast drying of the tinplate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings.

[0026] Figure 1 is a first stereogram of the present invention;

[0027] Figure 2 is a second stereogram of the present invention;

[0028] Figure 3 It is a three-dimensional diagram of the upper working roll and the lower working roll in the present invention;

[0029] Figure 4 It is a three-dimensional diagram of the upper fixing seat in the present invention;

[0030] Figure 5 is a three-dimensional view of a cutaway view of a casing in the present invention;

[0031] Figure 6 It is a three-dimensional diagram of the limiting wheel in the present invention;

[0032] Figure 7 is a three-dimensional diagram of the delivery pipe in the present invention;

[0033] Figure 8 is a three-dimensional diagram of the swing rod in the present invention;

[0034] Description of the accompanying drawings: 1. frame; 11. support column; 12. controller; 2. pillar; 21. top plate; 22. electric push rod; 23. slide column; 24. lifting frame; 25. upper support roller; 26. lower support roller; 27. upper working roller; 28. lower working roller; 29. ​​upper fixing seat; 291. lower fixing seat; 292. fastening bolt; 293. sleeve; 294. connecting rod; 295. spring; 296. pressure sensor; 3. Guide roller; 31, tensioning roller; 4, mounting seat; 41, first motor; 42, bidirectional ball screw; 43, guide rod; 44, movable plate; 45, limiting wheel; 5, conveying pipe; 51, connecting pipe; 52, side plate; 53, fan; 54, air nozzle; 55, rotating rod; 56, rotating wheel; 57, belt; 58, L-shaped plate; 581, second motor; 582, rotating rod; 583, swing rod; 584, sliding mouth; 585, limiting column. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0036] See also Figure 1 - Figure 8 The present invention provides a tinplate cold rolling device, comprising: a frame 1; a controller 12, fixedly connected to the outer wall of the frame 1; two leveling mechanisms are provided, and both are arranged on the frame 1; the leveling mechanisms each include an upper support roller 25, a lower support roller 26, an upper working roller 27 and a lower working roller 28, and the leveling mechanisms each include four pillars 2, the tops of the four pillars 2 are fixedly connected to a top plate 21, the tops of the top plates 21 are fixedly connected to electric push rods 22, and the output ends of the electric push rods 22 are fixedly connected to a lifting frame 24; the upper support rollers 25 and the upper working rollers 27 are rotatably connected to the upper support rollers 25 and the upper working rollers 27 through bearings. On the lifting frame 24; four lower fixed seats 291 are fixedly connected to the two inner side walls of the frame 1, and the tops of the lower fixed seats 291 are rotatably connected to the upper fixed seats 29 through pin shafts; one end of the lower support seat and the lower working roller 28 are arranged between the upper fixed seat 29 and the lower fixed seat 291 through a bearing seat; fastening bolts 292 are installed on the lower fixed seat 291 and the upper fixed seat 29, wherein a pressure sensor 296 is provided on the top of the upper fixed seat 29, and the pressure sensor 296 is electrically connected to the controller 12; the electric push rods 22 are electrically connected to the controller 12.

[0037] In the prior art, the initial rolling stability after the working rolls are replaced is poor, and the roughness is between 0.14-0.26μm. There are problems of uneven and low roughness, so the adhesion of the passivation film of the tinplate is poor, resulting in the shedding of the coating under the impact of large deformation; when the leveling mechanism provided by the present invention is in use, in order to ensure the roughness, control accuracy and stability of the tinplate surface, the upper working roll 27 and the lower working roll 28 are required to be in a mileage with strong stability for leveling production, and the mileage is 100-500Km. At the same time, in order to ensure the transfer rate and uniformity of the roughness, it is required to increase the rolling force difference between the two leveling mechanisms by not less than 1500KN; when the tinplate passes through the first upper working roll 27, it is necessary to increase the pressure, and the electric push rod 22 is started. The electric push rod 22 drives the lifting frame 24 to move through the output end, and the lifting frame 24 moves When the tinplate passes through the second upper working roller 27, the controller 12 controls the second electric push rod 22, and waits for the electric push rod 22 to drive the connected lifting frame 24 to move through the output end, and the lifting frame 24 drives the connected upper working roller 27 to move when moving, and the lifting frame 24 presses the corresponding pressure sensor 296 when moving, and the pressure at this time is monitored by the pressure sensor 296. When the difference between the two pressures is not less than 1500KN, the controller 12 controls the second electric push rod 22 to close, thereby adjusting the rolling force of the two leveling mechanisms, so as to maintain the uniformity and stability of the roughness of the tinplate, and realize the function of improving the adhesion of the passivation film of the tinplate.

[0038] Furthermore, if Figures 3 to 5 As shown, the top of the upper fixed seat 29 is fixedly connected to a sleeve 293, and the pressure sensor 296 is fixedly connected to the bottom of the sleeve 293; the top of the sleeve 293 is slidably connected to a connecting rod 294, and the top of the connecting rod 294 is fixedly connected to the bottom of the lifting frame 24; the bottom of the connecting rod 294 is fixedly connected to a spring 295, and the bottom of the spring 295 is fixedly connected to the top of the pressure sensor 296.

[0039] When the pressure sensor 296 provided by the present invention is in use, the electric push rod 22 is started, and the electric push rod 22 drives the lifting frame 24 to move up and down through the output end, and the connecting rod 294 is squeezed or stretched by the lifting frame 24, and the spring 295 is compressed or stretched by the connecting rod 294. The pressure sensor 296 is acted on by the spring 295 and the force conversion is monitored, thereby monitoring the rolling force between the upper working roll 27 and the lower working roll 28, which is convenient for controlling and adjusting the rolling force.

[0040] Furthermore, if Figure 1 and Figure 6As shown, two limiting wheels 45 are provided at the feed end of the frame 1; a bidirectional ball screw 42 is rotatably connected between the two inner walls of the frame 1 through a bearing, two movable plates 44 are threadedly connected to the bidirectional ball screw 42, the tops of the movable plates 44 are fixedly connected to a mounting seat 4, and the limiting wheels 45 are rotatably connected to the mounting seat 4 through a rotating shaft; a first motor 41 is fixedly connected to the side wall of the frame 1, and the output shaft of the first motor 41 is rotatably connected to the frame 1 through a bearing, and the output shaft of the first motor 41 is fixedly connected to one end of the bidirectional ball screw 42.

[0041] The limiting wheel 45 provided by the present invention is used to limit the tinplate when in use. The first motor 41 is turned on and the bidirectional ball screw 42 is driven to rotate by the output shaft of the first motor 41. Since a ball nut seat is provided between the bidirectional ball screw 42 and the movable plate 44, the radial movement of the movable plate 44 is guaranteed by the ball nut seat. The movable plate 44 is driven to move in the opposite direction by the bidirectional ball screw 42, and the mounting seat 4 is driven to move in the opposite direction by the movable plate 44. The limiting wheel 45 is driven to move in the opposite direction by the mounting seat 4 until the tinplate is limited between the two limiting wheels 45 to prevent the tinplate from running off. The tinplate is rolled with twill.

[0042] Furthermore, if Figure 2 and Figure 7 As shown, one end of the frame 1 close to the limiting wheel 45 is rotatably connected to two conveying pipes 5 through a rotating rod 55, and a plurality of air nozzles 54 are installed at the bottom of the conveying pipes 5, and air valves are installed on the air nozzles 54; a side plate 52 is fixedly connected to the side wall of the frame 1, and a fan 53 is fixedly connected to the top of the side plate 52, and the air outlet of the fan 53 is connected and fixedly connected to a connecting pipe 51, and one end of the connecting pipe 51 passes through the rotating rod 55 and is connected and fixedly connected to one end of the two conveying pipes 5.

[0043] Before cold rolling, the tinplate needs to be pickled, but the cleaning liquid after pickling is prone to residue or serious water drag, resulting in spots or even erosion on the surface of the product after cold rolling, affecting its quality, so it needs to be dried. When the air nozzle 54 provided by the present invention is in use, the fan 53 is turned on, and the fan 53 transports gas through the connecting pipe 51. The gas in the connecting pipe 51 is sprayed onto the tinplate through the conveying pipe 5 and the air nozzle 54, thereby air-drying the tinplate. The air valve is installed on the air nozzle 54. According to the width of the tinplate, the opening and closing of the paint spray nozzle is controlled by the air valve to save energy.

[0044] Furthermore, if Figure 7 and Figure 8As shown, one end of the rotating rod 55 away from the connecting pipe 51 is fixedly connected to a rotating wheel 56, and a belt 57 is provided between the two rotating wheels 56; a swing rod 583 is fixedly connected to the lower rotating rod 55, and the swing rod 583 is rotatably connected to the side wall of the frame 1 through a pin shaft, and a driving mechanism is provided on the swing rod 583.

[0045] The rotating wheel 56 and the belt 57 provided by the present invention are used to expand the drying range when in use. The swing rod 583 is driven to swing by the driving mechanism, and the connected rotating rod 55 is driven to rotate by the swing rod 583, and the connected conveying pipe 5 and the air nozzle 54 are driven to rotate by the rotating rod 55; at the same time, the rotating wheel 56 is driven to rotate by the rotating rod 55, and the belt 57 is driven to rotate by the rotating wheel 56, and another rotating wheel 56 is driven to rotate by the belt 57, and the connected rotating rod 55, the conveying pipe 5 and the air nozzle 54 are driven to rotate by the rotating wheel 56, and the air nozzles 54 above and below the tinplate swing back and forth to spray air, thereby realizing the function of quickly drying the tinplate.

[0046] Furthermore, if Figure 8 As shown, the driving mechanism includes an L-shaped plate 58 fixedly connected to the frame 1, and a second motor 581 is fixedly connected to the L-shaped plate 58, and the output shaft of the second motor 581 is fixedly connected to a rotating rod 582, and one end of the rotating rod 582 away from the output shaft of the second motor 581 is fixedly connected to a limiting column 585; a sliding opening 584 is opened on the swing rod 583, and the limiting column 585 slides in the sliding opening 584.

[0047] The rotating rod 582 and the limiting column 585 provided by the present invention are used to drive the reciprocating swing of the swing rod 583 when in use. By turning on the second motor 581, the rotating rod 582 is driven to rotate through the output shaft of the second motor 581, and the limiting column 585 is driven to rotate through the rotating rod 582. When the limiting column 585 rotates, it slides in the sliding opening 584, and drives the swing rod 583 to swing back and forth around the pin shaft through the sliding opening 584. When the swing rod 583 swings, it can drive the connected rotating rod 55 to swing back and forth.

[0048] Furthermore, if Figure 1 As shown, both ends of the frame 1 are rotatably connected to guide rollers 3 through bearings; two tensioning rollers 31 are provided between the guide rollers 3 and the upper working roller 27, and the tensioning rollers 31 are rotatably connected to the frame 1 through bearings.

[0049] When the guide roller 3 and the tensioning roller 31 provided by the present invention are in use, the tinplate is conveyed through the guide roller 3, the tensioning roller 31, the upper working roller 27 and the lower working roller 28. The guide roller 3 is provided to provide a guiding function, and the tensioning roller 31 is provided to adjust the tension of the tinplate to maintain the stability of the tinplate rolling.

[0050] Furthermore, if Figure 1 As shown, four support columns 11 are fixedly connected to the bottom of the frame 1 , and the support columns 11 are respectively arranged at the four corners of the bottom of the frame 1 .

[0051] When the support column 11 provided by the present invention is in use, the stability of the frame 1 is improved by providing the support column 11 , thereby facilitating the cold rolling operation in the frame 1 .

[0052] Furthermore, if Figure 3 As shown, four sliding columns 23 are fixed to the top of the lifting frame 24 , and the sliding columns 23 are slidably connected to the top plate 21 .

[0053] When the slide column 23 provided by the present invention is in use, when the electric push rod 22 drives the lifting frame 24 to move, the lifting frame 24 drives the slide column 23 to move, the slide column 23 slides on the top plate 21, and the slide column 23 limits the lifting frame 24 in the vertical direction.

[0054] Furthermore, if Figure 6 As shown, two guide rods 43 are fixedly connected between the two inner walls of the frame 1, and the movable plates 44 are slidably connected to the guide rods 43.

[0055] When the guide rod 43 provided by the present invention is in use, when the movable plate 44 moves, the movable plate 44 slides on the guide rod 43, and the guide rod 43 limits the movable plate 44 in the horizontal direction.

[0056] Working principle: In order to ensure the roughness, control accuracy and stability of the tinplate surface, the upper working roller 27 and the lower working roller 28 are required to be in a stable mileage for leveling production, the mileage is 100-500Km, and at the same time, in order to ensure the transfer rate and uniformity of the roughness, it is required to increase the rolling force difference between the two leveling mechanisms by no less than 1500KN; when the tinplate passes through the first upper working roller 27, the pressure needs to be increased, and the electric push rod 22 is started. The electric push rod 22 drives the lifting frame 24 to move through the output end. The lifting frame 24 drives the upper working roller 27 to move when it moves, and the lifting frame 24 presses the pressure sensor 296 when it moves, and the pressure at this time is monitored by the pressure sensor 296; when the tinplate passes through the second upper working roller 2 At 7, under the action of the controller 12, the second electric push rod 22 is controlled, and the electric push rod 22 drives the connected lifting frame 24 to move through the output end. The lifting frame 24 drives the connected upper working roller 27 to move when it moves, and the lifting frame 24 presses the corresponding pressure sensor 296 when it moves. The pressure at this time is monitored by the pressure sensor 296. When the difference between the two pressures is not less than 1500KN, the controller 12 controls the second electric push rod 22 to close, thereby adjusting the rolling force of the two flattening mechanisms, thereby maintaining the uniformity and stability of the roughness of the tinplate, and realizing the function of improving the adhesion of the passivation film of the tinplate; in order to realize the limit of the tinplate, the first motor 41 is turned on, and the output shaft of the first motor 41 drives the The bidirectional ball screw 42 rotates. Since a ball nut seat is provided between the bidirectional ball screw 42 and the movable plate 44, the radial movement of the movable plate 44 is guaranteed by the ball nut seat. The movable plate 44 is driven to move in the opposite direction by the bidirectional ball screw 42, and the mounting seat 4 is driven to move in the opposite direction by the movable plate 44. The limiting wheel 45 is driven to move in the opposite direction by the mounting seat 4 until the tinplate is limited between the two limiting wheels 45 to prevent the tinplate from running off. Twill is rolled on the tinplate. The tinplate needs to be pickled before cold rolling. However, the cleaning liquid after pickling is prone to residue or serious water drag, resulting in spots or even erosion on the surface of the product after cold rolling, affecting its quality. Therefore, it needs to be dried. By turning on the fan 53, the fan 53 passes The gas is transported through the connecting pipe 51, and the gas in the connecting pipe 51 is sprayed onto the tinplate through the transport pipe 5 and the air nozzle 54, so that the tinplate is air-dried, and the air nozzle 54 is equipped with an air valve, and the opening and closing of the paint spray nozzle is controlled by the air valve according to the width of the tinplate, so as to save energy; at the same time, by turning on the second motor 581, the output shaft of the second motor 581 drives the rotating rod 582 to rotate, and the rotating rod 582 drives the limiting column 585 to rotate, and the limiting column 585 slides in the sliding opening 584 when rotating, and the sliding opening 584 drives the swing rod 583 to swing back and forth around the pin shaft, and the swing rod 583 can drive the connected rotating rod 55 to swing back and forth when swinging, and the rotating rod 55 drives the connected transport pipe 5 and the air nozzle 54 to rotate;At the same time, the rotating rod 55 drives the rotating wheel 56 to rotate, the rotating wheel 56 drives the belt 57 to rotate, the belt 57 drives another rotating wheel 56 to rotate, and the rotating wheel 56 drives the connected rotating rod 55, the conveying pipe 5 and the air nozzle 54 to rotate, and the air nozzles 54 above and below the tinplate swing back and forth to spray air, thereby realizing the function of quickly drying the tinplate. ;

[0057] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A tinplate cold rolling device, comprising: Rack (1); A controller (12) is fixedly connected to the outer wall of the frame (1); Two leveling mechanisms are provided, and both are arranged on the frame (1); The invention is characterized in that: the leveling mechanism comprises an upper support roller (25), a lower support roller (26), an upper working roller (27) and a lower working roller (28); the leveling mechanism comprises four pillars (2); the tops of the four pillars (2) are fixedly connected to a top plate (21); the tops of the top plates (21) are fixedly connected to an electric push rod (22); the output ends of the electric push rods (22) are fixedly connected to a lifting frame (24); the upper support roller (25) and the upper working roller (27) are rotatably connected to the lifting frame (24) through bearings; four lower fixed rollers are fixedly connected to the two inner side walls of the frame (1); A fixed seat (291), the top of the lower fixed seat (291) is rotatably connected to the upper fixed seat (29) through a pin shaft; one end of the lower support seat and the lower working roller (28) are arranged between the upper fixed seat (29) and the lower fixed seat (291) through a bearing seat; fastening bolts (292) are installed on the lower fixed seat (291) and the upper fixed seat (29), wherein a pressure sensor (296) is provided on the top of the upper fixed seat (29), and the pressure sensor (296) is electrically connected to the controller (12); the electric push rods (22) are electrically connected to the controller (12).

2. A tinplate cold rolling device according to claim 1, characterized in that: The top of the upper fixed seat (29) is fixedly connected to a sleeve (293), and the pressure sensor (296) is fixedly connected to the bottom of the sleeve (293); the top of the sleeve (293) is slidably connected to a connecting rod (294), and the top of the connecting rod (294) is fixedly connected to the bottom of the lifting frame (24); the bottom of the connecting rod (294) is fixedly connected to a spring (295), and the bottom of the spring (295) is fixedly connected to the top of the pressure sensor (296).

3. A tinplate cold rolling device according to claim 2, characterized in that: The feeding end of the frame (1) is provided with two limiting wheels (45); a bidirectional ball screw (42) is rotatably connected between the two inner walls of the frame (1) via a bearing, two movable plates (44) are threadedly connected to the bidirectional ball screw (42), the tops of the movable plates (44) are fixedly connected to a mounting seat (4), and the limiting wheels (45) are rotatably connected to the mounting seat (4) via a rotating shaft; a first motor (41) is fixedly connected to the side wall of the frame (1), the output shaft of the first motor (41) is rotatably connected to the frame (1) via a bearing, and the output shaft of the first motor (41) is fixedly connected to one end of the bidirectional ball screw (42).

4. A tinplate cold rolling device according to claim 3, characterized in that: One end of the frame (1) close to the limiting wheel (45) is rotatably connected to two conveying pipes (5) through a rotating rod (55); a plurality of air nozzles (54) are installed at the bottom of the conveying pipes (5); each of the air nozzles (54) is installed with an air valve; a side plate (52) is fixedly connected to the side wall of the frame (1); a fan (53) is fixedly connected to the top of the side plate (52); an air outlet of the fan (53) is connected and fixedly connected to a connecting pipe (51); one end of the connecting pipe (51) passes through the rotating rod (55) and is connected and fixedly connected to one end of the two conveying pipes (5).

5. A tinplate cold rolling device according to claim 4, characterized in that: The ends of the rotating rods (55) away from the connecting pipe (51) are fixedly connected to rotating wheels (56), and a belt (57) is sleeved between the two rotating wheels (56); a swing rod (583) is fixedly connected to the lower rotating rod (55), and the swing rod (583) is rotatably connected to the side wall of the frame (1) through a pin shaft, and a driving mechanism is provided on the swing rod (583).

6. A tinplate cold rolling device according to claim 5, characterized in that: The driving mechanism comprises an L-shaped plate (58) fixedly connected to the frame (1); a second motor (581) is fixedly connected to the L-shaped plate (58); an output shaft of the second motor (581) is fixedly connected to a rotating rod (582); an end of the rotating rod (582) away from the output shaft of the second motor (581) is fixedly connected to a limiting column (585); a sliding opening (584) is provided on the swing rod (583), and the limiting column (585) slides in the sliding opening (584).

7. A tinplate cold rolling device according to claim 6, characterized in that: Both ends of the frame (1) are rotatably connected to guide rollers (3) via bearings; two tensioning rollers (31) are provided between the guide rollers (3) and the upper working roller (27), and the tensioning rollers (31) are rotatably connected to the frame (1) via bearings.

8. The tinplate cold rolling device according to claim 7, characterized in that: Four support columns (11) are fixedly connected to the bottom of the frame (1), and the support columns (11) are respectively arranged at the four corners of the bottom of the frame (1).

9. A tinplate cold rolling device according to claim 8, characterized in that: Four sliding columns (23) are fixedly connected to the top of the lifting frame (24), and the sliding columns (23) are slidably connected to the top plate (21).

10. A tinplate cold rolling device according to claim 9, characterized in that: Two guide rods (43) are fixedly connected between the two inner walls of the frame (1), and the movable plates (44) are slidably connected to the guide rods (43).

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