CN213559129U - Alloy strip triple tandem rolling device - Google Patents

Abstract

The utility model relates to an alloy strip triple tandem rolling device. The alloy strip three continuous rolling device comprises a first rolling mill, a second rolling mill and a third rolling mill, wherein alloy strips to be rolled are conveyed to the first rolling mill, the second rolling mill and the third rolling mill from the unreeling machine and are on the same horizontal plane; the first rolling mill comprises a first rack, a first roller device, a first driving device, a first hydraulic device and a first control system; the second rolling mill comprises a second rack, a second roller device, a second driving device, a second hydraulic device and a second control system; the third rolling mill comprises a third rack, a third roller device, a third driving device, a third hydraulic device and a third control system; and the single-pass surface reduction rate is 10% -15% when the first roller device, the second roller device and the third roller device roll. The device can continuously roll the alloy strip, so that intermediate tempering operation is omitted, energy is saved, and consumption is reduced; the rolling stress is eliminated in time, and the high-strength steel has good tensile strength even if the steel is not tempered.

Description

Alloy strip triple tandem rolling device

Technical Field

The utility model belongs to the technical field of the alloy processing, concretely relates to alloy area three tandem rolling devices.

Background

The rolling mill is a device for realizing the metal rolling process, generally refers to a device for finishing the production process of rolled materials, and realizes the metal rolling process, the existing rolling device comprises an unreeling machine, a rolling roller system, a driving system, a hydraulic system, a control system and the like, but in the rolling process, tempering operation needs to be carried out on the alloy to remove stress, reduce resistance in cold rolling and improve the tensile strength of the alloy. In the actual production process, when rolling metal, multiple times of rolling are needed, so that tempering treatment is necessarily required to be carried out during each time of rolling, and a large amount of energy is consumed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: aiming at the defects, the utility model provides an alloy strip triple tandem rolling device which can carry out continuous rolling on the alloy strip, omits intermediate tempering operation, saves energy and reduces consumption; the rolling stress is eliminated in time, and the high-strength steel has good tensile strength even if the steel is not tempered.

The utility model provides a technical scheme that its technical problem adopted as follows: the alloy strip three continuous rolling device comprises a first rolling mill, a second rolling mill and a third rolling mill which are used for rolling the alloy strip, and the alloy strip to be rolled is conveyed to the first rolling mill, the second rolling mill and the third rolling mill from an unreeling machine and is positioned on the same horizontal plane;

the first rolling mill comprises a first rack, a first roller device, a first driving device, a first hydraulic device and a first control system; the first roller device is arranged on a first rack, a first hydraulic device is arranged above the first rack, and the first hydraulic device controls the first roller device to extrude up and down; the first driving device is arranged on one side of the first frame, and the first driving device and the first roller device are arranged on the same horizontal plane; the first driving device and the first hydraulic device are electrically connected and controlled by a first control system;

the second rolling mill comprises a second rack, a second roller device, a second driving device, a second hydraulic device and a second control system; the second roller device is arranged on a second rack, and a second hydraulic device is arranged above the second rack and controls the second roller device to extrude up and down; the second driving device is arranged on one side of the second rack, and the second driving device and the second roller device are arranged on the same horizontal plane; the second driving device and the second hydraulic device are electrically connected and controlled by a second control system;

the third rolling mill comprises a third rack, a third roller device, a third driving device, a third hydraulic device and a third control system; the third roller device is arranged on a third rack, a third hydraulic device is arranged above the third rack, and the third hydraulic device controls the third roller device to extrude up and down; the third driving device is arranged on one side of the third rack, and the third driving device and the third roller device are arranged on the same horizontal plane; the third driving device and the third hydraulic device are electrically connected and controlled by a third control system;

and the single-pass surface reduction rate is 10% -15% when the first roller device, the second roller device and the third roller device roll.

Further, the first roller device comprises a first upper working roller, a first lower working roller, a first upper supporting roller and a first lower supporting roller, the first upper working roller and the first lower working roller are respectively fixed on a first left fixing block and a first right fixing block from top to bottom, and the first left fixing block and the first right fixing block are respectively fixed on the opposite inner surfaces of the first frame; the first upper supporting roll and the first lower supporting roll are respectively arranged above and below the first upper working roll and the first lower working roll, and a first annular groove is formed in the middle of the first upper working roll; the first hydraulic device presses the first upper supporting roller downwards;

the second roller device comprises a second upper working roller, a second lower working roller, a second upper supporting roller and a second lower supporting roller, the second upper working roller and the second lower working roller are respectively fixed on a second left fixed block and a second right fixed block from top to bottom, and the second left fixed block and the second right fixed block are respectively fixed on the opposite inner surfaces of the second rack; the second upper supporting roll and the second lower supporting roll are respectively arranged above and below the second upper working roll and the second lower working roll, and a second annular groove is formed in the middle of the second upper working roll; the second upper supporting roller is pressed downwards by the second hydraulic device;

the third roller device comprises a third upper working roller, a third lower working roller, a third upper supporting roller and a third lower supporting roller, the third upper working roller and the third lower working roller are respectively fixed on a third left fixed block and a third right fixed block from top to bottom, and the third left fixed block and the third right fixed block are respectively fixed on the opposite inner surfaces of the third rack; the third upper supporting roll and the third lower supporting roll are respectively arranged above and below the third upper working roll and the third lower working roll, and a third annular groove is formed in the middle of the third upper working roll; the third upper supporting roller is pressed downwards by the third hydraulic device;

the widths of the first annular groove, the second annular groove and the third annular groove are reduced in equal proportion, and the depths of the first annular groove, the second annular groove and the third annular groove are increased in sequence.

Furthermore, the sectional area of the first annular groove is 1.1-1.18 times of that of the second annular groove, and the sectional area of the second annular groove is 1.1-1.18 times of that of the third annular groove.

Furthermore, the first driving device comprises a first driving motor, a first upper connecting roller and a first lower connecting roller, the first upper connecting roller is connected with a first upper supporting roller, the first lower connecting roller is connected with a first lower supporting roller, and the first upper connecting roller and the first lower connecting roller rotate at a constant speed under the action of the first driving motor;

the second driving device comprises a second driving motor, a second upper connecting roller and a second lower connecting roller, the second upper connecting roller is connected with a second upper supporting roller, the second lower connecting roller is connected with a second lower supporting roller, and the second upper connecting roller and the second lower connecting roller rotate at a constant speed under the action of the second driving motor;

the third drive arrangement includes that connection roller, third are connected the roller down on third driving motor, the third, connect the roller and be connected with the third upper support roller on the third, connect the roller under the third and be connected with third lower support roller, connect roller and third lower connection roller at the uniform velocity under the third driving motor effect and rotate on the third.

Further, a first slide rail group is arranged below the first frame, the first slide rail group is two slide rails, and the two slide rails are arranged on the symmetrical surface of the first frame;

a second slide rail group is arranged below the second rack, the second slide rail group comprises two slide rails, and the two slide rails are arranged on the symmetrical surface of the second rack;

and a third slide rail group is arranged below the third rack, the third slide rail group comprises two slide rails, and the two slide rails are arranged on the symmetrical surface of the third rack.

Furthermore, a first conveying roller is arranged between the first rolling mill and the second rolling mill, a second conveying roller is arranged between the second rolling mill and the third rolling mill, and a third conveying roller is arranged at the output end of the third rolling mill.

Furthermore, the first conveying roller, the second conveying roller and the third conveying roller are arranged on the same horizontal plane with the upper surfaces of the first lower working roller, the second lower working roller and the third lower working roller.

Furthermore, a pair of first infrared sensors are arranged on the first conveying roller and are arranged at two ends of a central shaft of the first annular groove;

a pair of second infrared sensors are arranged on the second conveying rollers and are arranged at two ends of a central shaft of the second annular groove;

and a pair of third infrared sensors are arranged on the third conveying rollers and are arranged at two ends of a central shaft of the third annular groove.

The utility model has the advantages that:

1. the alloy strip three-continuous rolling device conveys alloy strips through a first rolling mill, a second rolling mill and a third rolling mill which are arranged on the same horizontal plane, and drives the alloy strips to be conveyed through corresponding driving devices, so that the first rolling device, the second rolling device and the third rolling device of the alloy strips are limited to deform under the action of a first hydraulic device, a second hydraulic device and a third hydraulic device respectively, the single-pass deformation and surface reduction rate of the alloy strips is only 10% -15%, the uniformity of deformation is good, the alloy strips do not need to be tempered, energy is saved, and consumption is reduced; the alloy strip has pressure when the first roller device, the second roller device and the third roller device are in rolling conveying, residual stress generated when the three groups of corresponding hydraulic devices are in rolling can be released, and the alloy strip has good tensile strength in the step-by-step rolling process.

2. Three upper working rolls with annular grooves are introduced, the width is gradually reduced, the depth is gradually increased, the alloy strip is effectively made into a T-shaped structure, the production is stable, and the performance of the alloy strip is good; the alloy belt is stable in deformation and low in internal residual stress by selecting the annular groove with the appropriate sectional area change; the introduced first driving motor, the introduced second driving motor and the introduced third driving motor drive the corresponding connecting rollers to rotate at a constant speed, so that the alloy strip is effectively conveyed stably, and the stability of deformation in the rolling process is also ensured.

3. The first sliding group, the second sliding group and the third sliding group which are used for supporting and sliding the first rack, the second rack and the third rack are introduced to carry out horizontal position adjustment on the corresponding racks, so that three groups of racks can be arranged on the same horizontal line, and the precision is high; introduce first conveying roller, second conveying roller, third conveying roller and set up the infrared sensor on each conveying roller, keep straight line transport state among the alloy area transportation process, can not take place the skew when avoiding rolling, and transport stability is good.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the first drive mechanism and a portion of the first roll apparatus;

FIG. 3 is a front view of the second drive mechanism and a portion of the second roll apparatus;

FIG. 4 is a front view of a third drive mechanism and a portion of a third roll apparatus;

FIG. 5 is a schematic top view of three lower work rolls and three feed rolls;

wherein: 1 is a first rolling mill, 11 is a first stand, 12 is a first roll device, 121 is a first upper work roll, 122 is a first lower work roll, 123 is a first upper support roll, 124 is a first lower support roll, 125 is a first left fixed block, 126 is a first right fixed block, 127 is a first annular groove, 13 is a first driving device, 131 is a first driving motor, 132 is a first upper connecting roll, 133 is a first lower connecting roll, 14 is a first hydraulic device, 15 is a first control system, 16 is a first rail set, 2 is a second rolling mill, 21 is a second stand, 22 is a second roll device, 221 is a second upper work roll, 222 is a second lower work roll, 223 is a second upper support roll, 224 is a second lower support roll, 225 is a second left fixed block, 226 is a second right fixed block, 227 is a second annular groove, 23 is a second driving device, 231 is a second driving motor, 232 is a second upper connecting roll, 233 is a second lower connecting roll, 24 is a second hydraulic device, 25 is a second control system, 26 is a second rail set, 3 is a third rolling mill, 31 is a third frame, 32 is a third roll device, 321 is a third upper work roll, 322 is a third lower work roll, 323 is a third upper support roll, 324 is a third lower support roll, 325 is a third left fixed block, 326 is a third right fixed block, 327 is a third annular groove, 33 is a third driving device, 331 is a third driving motor, 332 is a third upper connecting roll, 333 is a third lower connecting roll, 34 is a third hydraulic device, 35 is a third control system, 36 is a third rail set, 4 is an unreeling machine, 51 is a first feed roll, 52 is a second feed roll, 53 is a third feed roll, 61 is a first infrared sensor, 62 is a second infrared sensor, and 63 is a third infrared sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, the alloy strip triple continuous rolling device comprises a first rolling mill 1, a second rolling mill 2 and a third rolling mill 3 for rolling the alloy strip, wherein the alloy strip to be rolled is conveyed from an unreeling machine 4 to the first rolling mill 1, the second rolling mill 2 and the third rolling mill 3 on the same horizontal plane;

the first rolling mill 1 comprises a first frame 11, a first roller device 12, a first driving device 13, a first hydraulic device 14 and a first control system 15; the first roller device 12 is arranged on a first frame 11, a first hydraulic device 14 is arranged above the first frame 11, and the first hydraulic device 14 controls the first roller device 12 to extrude up and down; the first driving device 13 is arranged on one side of the first frame 11, and the first driving device 13 and the first roller device 12 are arranged on the same horizontal plane; the first driving device 13 and the first hydraulic device 14 are electrically connected and controlled by a first control system 15;

the second rolling mill 2 comprises a second frame 21, a second roller device 22, a second driving device 23, a second hydraulic device 24 and a second control system 25; the second roller device 22 is arranged on a second frame 21, a second hydraulic device 24 is arranged above the second frame 21, and the second hydraulic device 24 controls the second roller device 22 to extrude up and down; the second driving device 23 is arranged at one side of the second frame 21, and the second driving device 23 and the second roller device 22 are arranged on the same horizontal plane; the second driving device 23 and the second hydraulic device 24 are electrically connected and controlled by a second control system 25;

the third rolling mill 3 comprises a third stand 31, a third roll device 32, a third driving device 33, a third hydraulic device 34 and a third control system 35; the third roller device 32 is arranged on a third frame 31, a third hydraulic device 34 is arranged above the third frame 31, and the third hydraulic device 34 controls the third roller device 32 to extrude up and down; the third driving device 33 is arranged at one side of the third frame 31, and the third driving device 33 and the third roller device 32 are arranged on the same horizontal plane; the third driving device 33 and the third hydraulic device 34 are electrically connected and controlled by a third control system 35;

the single-pass reduction rate of the first roller device 12, the second roller device 22 and the third roller device 32 is 10-15 percent.

The first roll device 12 comprises a first upper working roll 121, a first lower working roll 122, a first upper supporting roll 123 and a first lower supporting roll 124, the first upper working roll 121 and the first lower working roll 122 are respectively fixed on a first left fixing block 125 and a first right fixing block 126 up and down, and the first left fixing block 125 and the first right fixing block 126 are respectively fixed on the opposite inner surfaces of the first frame 11; the first upper supporting roll 123 and the first lower supporting roll 124 are respectively arranged above and below the first upper working roll 121 and the first lower working roll 122, and a first annular groove 127 is formed in the middle of the first upper working roll 121; the first hydraulic device 14 presses the first upper support roller 123 downward;

the second roll device 22 comprises a second upper working roll 221, a second lower working roll 222, a second upper supporting roll 223 and a second lower supporting roll 224, the second upper working roll 221 and the second lower working roll 222 are respectively fixed on a second left fixing block 225 and a second right fixing block 226 in an up-down manner, and the second left fixing block 225 and the second right fixing block 226 are respectively fixed on the opposite inner surfaces of the second frame 21; the second upper supporting roll 223 and the second lower supporting roll 224 are respectively arranged above and below the second upper working roll 221 and the second lower working roll 222, and a second annular groove 227 is arranged in the middle of the second upper working roll 221; the second upper supporting roller 223 is pressed downward by the second hydraulic device 24;

the third roll device 32 comprises a third upper working roll 321, a third lower working roll 322, a third upper supporting roll 323 and a third lower supporting roll 324, the third upper working roll 321 and the third lower working roll 322 are respectively fixed on a third left fixing block 325 and a third right fixing block 326 from top to bottom, and the third left fixing block 325 and the third right fixing block 326 are respectively fixed on the opposite inner surfaces of the third frame 31; the third upper supporting roller 323 and the third lower supporting roller 324 are respectively arranged above and below the third upper working roller 321 and the third lower working roller 322, and a third annular groove 327 is arranged in the middle of the third upper working roller 321; the third hydraulic device 34 presses the third upper support roller 323 downward;

the widths of the first annular groove 127, the second annular groove 227 and the third annular groove 327 are reduced in equal proportion, and the depths of the first annular groove 127, the second annular groove 227 and the third annular groove 327 are increased in sequence; specifically, the cross-sectional area of the first annular groove 127 is 1.1 to 1.18 times that of the second annular groove 227, the cross-sectional area of the second annular groove 227 is 1.1 to 1.18 times that of the third annular groove 327, in this embodiment, it is preferable that the cross-sectional area of the first annular groove 127 is 1.15 times that of the second annular groove 227, the cross-sectional area of the second annular groove 227 is 1.15 times that of the third annular groove 327, and the single-pass reduction rate is 13%.

The first driving device 13 comprises a first driving motor 131, a first upper connecting roller 132 and a first lower connecting roller 133, the first upper connecting roller 132 is connected with the first upper supporting roller 123, the first lower connecting roller 133 is connected with the first lower supporting roller 124, and the first upper connecting roller 132 and the first lower connecting roller 133 rotate at a constant speed under the action of the first driving motor 131;

the second driving device 23 comprises a second driving motor 231, a second upper connecting roller 232 and a second lower connecting roller 233, the second upper connecting roller 232 is connected with a second upper supporting roller 223, the second lower connecting roller 233 is connected with a second lower supporting roller 224, and the second upper connecting roller 232 and the second lower connecting roller 233 rotate at a constant speed under the action of the second driving motor 231;

the third driving device 33 includes a third driving motor 331, a third upper connecting roller 332 and a third lower connecting roller 333, the third upper connecting roller 332 is connected with the third upper supporting roller 323, the third lower connecting roller 333 is connected with the third lower supporting roller 324, and the third upper connecting roller 332 and the third lower connecting roller 333 rotate at a constant speed under the action of the third driving motor 331.

A first slide rail group 16 is arranged below the first frame 11, the first slide rail group 16 is two slide rails, and the two slide rails are arranged on the symmetrical surface of the first frame 11;

a second slide rail group 26 is arranged below the second rack 21, the second slide rail group 26 is two slide rails, and the two slide rails are arranged on the symmetrical surface of the second rack 21;

a third slide rail group 36 is arranged below the third frame 31, the third slide rail group 36 is two slide rails, and the two slide rails are arranged on the symmetrical surface of the third frame 31.

A first conveying roller 51 is arranged between the first rolling mill 1 and the second rolling mill 2, a second conveying roller 52 is arranged between the second rolling mill 2 and the third rolling mill 3, and a third conveying roller 53 is arranged at the output end of the third rolling mill 3; the first conveying roller 51, the second conveying roller 52 and the third conveying roller 53 are arranged on the same horizontal plane with the upper surfaces of the first lower working roller 122, the second lower working roller 222 and the third lower working roller 322;

a pair of first infrared sensors 61 are arranged on the first conveying roller 51, and the first infrared sensors 61 are arranged at two ends of the central shaft of the first annular groove 127;

a pair of second infrared sensors 62 is arranged on the second conveying roller 52, and the second infrared sensors 62 are arranged at two ends of the central shaft of the second annular groove 227;

a pair of third infrared sensors 63 is provided on the third conveyor rollers 53, and the third infrared sensors 63 are provided at both ends of the center axis of the third annular groove 327.

The alloy strip triple continuous rolling device can be used for continuously rolling the alloy strip, so that the intermediate tempering operation is omitted, the energy is saved, and the consumption is reduced; the rolling stress is eliminated in time, and the high-strength steel has good tensile strength even if the steel is not tempered; in the process of the three continuous rolling devices, the first control system, the second control system and the third control system can also monitor the transmission speeds of the first roller device, the second roller device and the third roller device and the transmission tension of the transmitted alloy strip, so that good stability of the alloy strip in rolling is ensured.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (8)

1. The alloy strip three-continuous rolling device is characterized by comprising a first rolling mill, a second rolling mill and a third rolling mill which are used for rolling the alloy strip, wherein the alloy strip to be rolled is conveyed to the first rolling mill, the second rolling mill and the third rolling mill from an unreeling machine to be on the same horizontal plane;

the first rolling mill comprises a first rack, a first roller device, a first driving device, a first hydraulic device and a first control system; the first roller device is arranged on a first rack, a first hydraulic device is arranged above the first rack, and the first hydraulic device controls the first roller device to extrude up and down; the first driving device is arranged on one side of the first frame, and the first driving device and the first roller device are arranged on the same horizontal plane; the first driving device and the first hydraulic device are electrically connected and controlled by a first control system;

the second rolling mill comprises a second rack, a second roller device, a second driving device, a second hydraulic device and a second control system; the second roller device is arranged on a second rack, and a second hydraulic device is arranged above the second rack and controls the second roller device to extrude up and down; the second driving device is arranged on one side of the second rack, and the second driving device and the second roller device are arranged on the same horizontal plane; the second driving device and the second hydraulic device are electrically connected and controlled by a second control system;

the third rolling mill comprises a third rack, a third roller device, a third driving device, a third hydraulic device and a third control system; the third roller device is arranged on a third rack, a third hydraulic device is arranged above the third rack, and the third hydraulic device controls the third roller device to extrude up and down; the third driving device is arranged on one side of the third rack, and the third driving device and the third roller device are arranged on the same horizontal plane; the third driving device and the third hydraulic device are electrically connected and controlled by a third control system;

and the single-pass surface reduction rate is 10% -15% when the first roller device, the second roller device and the third roller device roll.

2. The alloy strip triple tandem rolling apparatus of claim 1, wherein: the first roller device comprises a first upper working roller, a first lower working roller, a first upper supporting roller and a first lower supporting roller, the first upper working roller and the first lower working roller are respectively fixed on a first left fixing block and a first right fixing block from top to bottom, and the first left fixing block and the first right fixing block are respectively fixed on the opposite inner surfaces of the first frame; the first upper supporting roll and the first lower supporting roll are respectively arranged above and below the first upper working roll and the first lower working roll, and a first annular groove is formed in the middle of the first upper working roll; the first hydraulic device presses the first upper supporting roller downwards;

the second roller device comprises a second upper working roller, a second lower working roller, a second upper supporting roller and a second lower supporting roller, the second upper working roller and the second lower working roller are respectively fixed on a second left fixed block and a second right fixed block from top to bottom, and the second left fixed block and the second right fixed block are respectively fixed on the opposite inner surfaces of the second rack; the second upper supporting roll and the second lower supporting roll are respectively arranged above and below the second upper working roll and the second lower working roll, and a second annular groove is formed in the middle of the second upper working roll; the second upper supporting roller is pressed downwards by the second hydraulic device;

the third roller device comprises a third upper working roller, a third lower working roller, a third upper supporting roller and a third lower supporting roller, the third upper working roller and the third lower working roller are respectively fixed on a third left fixed block and a third right fixed block from top to bottom, and the third left fixed block and the third right fixed block are respectively fixed on the opposite inner surfaces of the third rack; the third upper supporting roll and the third lower supporting roll are respectively arranged above and below the third upper working roll and the third lower working roll, and a third annular groove is formed in the middle of the third upper working roll; the third upper supporting roller is pressed downwards by the third hydraulic device;

the widths of the first annular groove, the second annular groove and the third annular groove are reduced in equal proportion, and the depths of the first annular groove, the second annular groove and the third annular groove are increased in sequence.

3. The alloy strip triple tandem rolling apparatus of claim 2, wherein: the sectional area of the first annular groove is 1.1-1.18 times of that of the second annular groove, and the sectional area of the second annular groove is 1.1-1.18 times of that of the third annular groove.

4. The alloy strip triple tandem rolling apparatus of claim 2, wherein: the first driving device comprises a first driving motor, a first upper connecting roller and a first lower connecting roller, the first upper connecting roller is connected with a first upper supporting roller, the first lower connecting roller is connected with a first lower supporting roller, and the first upper connecting roller and the first lower connecting roller rotate at a constant speed under the action of the first driving motor;

the second driving device comprises a second driving motor, a second upper connecting roller and a second lower connecting roller, the second upper connecting roller is connected with a second upper supporting roller, the second lower connecting roller is connected with a second lower supporting roller, and the second upper connecting roller and the second lower connecting roller rotate at a constant speed under the action of the second driving motor;

the third drive arrangement includes that connection roller, third are connected the roller down on third driving motor, the third, connect the roller and be connected with the third upper support roller on the third, connect the roller under the third and be connected with third lower support roller, connect roller and third lower connection roller at the uniform velocity under the third driving motor effect and rotate on the third.

5. The alloy strip triple tandem rolling apparatus of claim 1, wherein: a first slide rail group is arranged below the first machine frame, the first slide rail group comprises two slide rails, and the two slide rails are arranged on the symmetrical surface of the first machine frame;

a second slide rail group is arranged below the second rack, the second slide rail group comprises two slide rails, and the two slide rails are arranged on the symmetrical surface of the second rack;

and a third slide rail group is arranged below the third rack, the third slide rail group comprises two slide rails, and the two slide rails are arranged on the symmetrical surface of the third rack.

6. The alloy strip triple tandem rolling apparatus of claim 1, wherein: and a first conveying roller is arranged between the first rolling mill and the second rolling mill, a second conveying roller is arranged between the second rolling mill and the third rolling mill, and a third conveying roller is arranged at the output end of the third rolling mill.

7. The alloy strip triple tandem rolling apparatus of claim 6, wherein: and the upper surfaces of the first conveying roller, the second conveying roller and the third conveying roller, the first lower working roller, the second lower working roller and the third lower working roller are arranged on the same horizontal plane.

8. The alloy strip triple tandem rolling apparatus of claim 6, wherein: a pair of first infrared sensors are arranged on the first conveying roller and are arranged at two ends of a central shaft of the first annular groove;

a pair of second infrared sensors are arranged on the second conveying rollers and are arranged at two ends of a central shaft of the second annular groove;

and a pair of third infrared sensors are arranged on the third conveying rollers and are arranged at two ends of a central shaft of the third annular groove.

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