A cold rolling six-high single stand reversible rolling mill and a rolling method for producing extremely thin strip steel

Abstract

The present application relates to a cold rolling six-high single-stand reversible rolling mill and a rolling method for producing extremely thin strip steel, including a bottom plate. A six-high cold rolling mechanism is arranged on the bottom plate. Feeding mechanisms are arranged on both sides of the six-high cold rolling mechanism on the bottom plate. Each feeding mechanism includes a moving plate, an adjusting plate, a fixing plate and a feeding roller. The moving plate is arranged on the bottom plate. Adjusting plates are arranged on the moving plate at positions close to and far from the six-high cold rolling mechanism. Fixing plates are arranged on both sides of the adjusting plate. Feeding rollers are rotatably arranged between the two fixing plates at the upper and lower parts of the fixing plates. A driving motor for driving the lower feeding roller to rotate is arranged on the fixing plate. An adjusting mechanism for driving the two adjusting plates to approach or move away from each other is arranged on the moving plate. A lifting mechanism for driving the fixing plate to drive the feeding roller to lift is arranged on the adjusting plate. The present application has the advantage of facilitating the conveying of strip steel to a relatively high position.

Description

Technical Field

[0001] The present application relates to the field of strip production equipment, and in particular to a cold rolling six-high single stand reversing mill and a rolling method for producing ultra-thin strip steel thereof. Background Art

[0002] Six-high rolling mills are generally used for cold rolling strip steel. The most widely used six-high rolling mill model at present is the HC six-high rolling mill or its improved type. The characteristics of this model are: the work roll has positive and negative bending roll functions, and the intermediate roll has positive bending and shifting roll functions; the intermediate roll bending roll device can shift along the axial direction of the roll.

[0003] Chinese Patent with the authorization announcement number CN212494550U discloses a cold rolling six-high single stand reversing rolling mill unit, specifically related to the field of cold rolling equipment, including a support mechanism, a roll mechanism and a hydraulic rod. The support mechanism includes a base and columns fixedly connected to the top surface of the base. The top surface of the column is fixedly connected with a connecting rod support seat. A chute is opened inside the column. The roll mechanism is slidably installed inside the chute. The roll mechanism includes a stationary roll, a secondary roll and a moving roll. Support blocks, bottom locking devices and main locking devices are installed on the outer sides of the opposite surfaces of the stationary roll and the moving roll. A distance adjusting screw is arranged between the stationary roll, the secondary roll and the moving roll.

[0004] Aiming at the above related technologies, there are the following technical defects: when strip steel needs to be processed, the strip steel needs to be passed between two secondary rolls so that the two secondary rolls can realize cold rolling of the strip steel. Due to the arrangement of the stationary roll, the secondary roll and the moving roll, the positions of the two secondary rolls are relatively high, which is not convenient for the operator to pass the strip steel between the two secondary rolls. Summary of the Invention

[0005] In a first aspect, in order to facilitate the operator to convey the strip steel to a relatively high position for cold rolling, the present application provides a cold rolling six-high single stand reversing mill.

[0006] The cold rolling six-high single stand reversing mill provided by the present application adopts the following technical solutions:

[0007] A cold rolling six-high single stand reversible rolling mill, including a bottom plate, on which a six-high cold rolling mechanism for processing strip steel is provided. On both sides of the six-high cold rolling mechanism on the bottom plate, feeding mechanisms are provided. Each feeding mechanism includes a moving plate, an adjusting plate, a fixing plate and a feeding roller. The moving plate is arranged on the bottom plate. On the moving plate, the adjusting plates are arranged at positions close to and far from the six-high cold rolling mechanism. The two adjusting plates are slidably arranged on the moving plate in the direction of approaching or separating from each other. On the adjusting plate, the fixing plates are arranged on both sides of the adjusting plate. Between the two fixing plates, the feeding rollers are rotatably arranged at the upper and lower parts of the fixing plates. A driving motor for driving the lower feeding roller to rotate is arranged on the fixing plate. An adjusting mechanism for driving the two adjusting plates to approach or separate from each other is arranged on the moving plate. An elevating mechanism for driving the fixing plate to drive the feeding roller to lift is arranged on the adjusting plate.

[0008] By adopting the above technical solution, the feeding roller can be lifted and lowered by the elevating mechanism, so that the feeding roller can be lowered to a position close to the ground, which is convenient for the operator to place the strip steel between the two feeding rollers. When the strip steel is between the feeding rollers on the two adjusting plates, the elevating mechanism can drive the feeding roller to lift and lower, so as to convey the strip steel into the six-high cold rolling mechanism for processing. Feeding mechanisms are arranged on both sides of the bottom plate, so that the two feeding mechanisms repeatedly convey the strip steel into the cold rolling six-high single stand reversible rolling mill for processing; the adjusting mechanism drives the two adjusting plates to approach or separate from each other, so as to adjust the distance between the two adjusting plates, so that the adjusting plates with different distances can carry and convey strip steels with different lengths, improving the applicability of the whole cold rolling six-high single stand reversible rolling mill.

[0009] Optionally, an adjusting groove is formed on the moving plate. On both sides of the adjusting plate, adjusting blocks are fixedly arranged and slidably connected in the adjusting groove. The adjusting mechanism includes a bidirectional lead screw rotatably arranged in the adjusting groove along the length direction of the adjusting groove. The two adjusting blocks are sleeved and threadedly connected to the thread parts at both ends of the bidirectional lead screw. An adjusting motor for driving the bidirectional lead screw to rotate is fixedly arranged on the moving plate.

[0010] By adopting the above technical solution, the adjusting motor drives the bidirectional lead screw to rotate. Since the adjusting block is slidably arranged in the adjusting groove, the adjusting block will not rotate along with the rotation of the bidirectional lead screw, so that the two adjusting blocks approach or separate from each other on the bidirectional lead screw, making the two adjusting blocks drive the two adjusting plates to approach or separate from each other, so that the two feeding rollers approach or separate from each other. The setting of the bidirectional lead screw has a simple structure and improves the driving effect on the two adjusting plates.

[0011] Optionally, the lifting mechanism includes a lifting electric cylinder fixedly arranged on the adjusting plate, and the fixing plate is fixedly arranged on the driving end of the lifting electric cylinder.

[0012] By adopting the above technical solution, the fixing plate is driven to move by the lifting electric cylinder, so that the fixing plate drives the feeding roller to lift, realizing the height adjustment of the feeding roller. The structure of the lifting electric cylinder is simple and convenient for maintenance.

[0013] Optionally, a hinge plate is fixedly arranged on the driving end of the lifting electric cylinder, and a hinge shaft is fixedly arranged on the fixing plate and penetrates through and is rotatably connected to the hinge plate. The fixing plate is arranged on the driving end of the lifting electric cylinder through the hinge shaft and the hinge plate, and a rotating mechanism for driving the hinge shaft to drive the fixing plate to rotate is arranged on the hinge plate.

[0014] By adopting the above technical solution, the hinge shaft is driven to rotate by the rotating mechanism, so that the hinge plate drives the feeding roller on the fixing plate to further adjust the feeding direction, facilitating the conveying of the strip steel at higher or lower positions, and further facilitating the operator to convey the material.

[0015] Optionally, the rotating mechanism includes a worm gear, a worm and a rotating motor. The worm gear is sleeved and fixedly connected to the hinge shaft, the worm is fixedly arranged on the driving end of the rotating motor and meshes with the worm gear, and the rotating motor is fixedly arranged on the hinge plate.

[0016] By adopting the above technical solution, the worm is driven to rotate by the rotating motor, so that the worm gear drives the hinge shaft to rotate, and the hinge shaft can drive the fixing plate to rotate, thus realizing the adjustment of the feeding direction of the feeding roller. The setting of driving the worm gear by the worm can fix the fixing plate to any rotated position, improving the driving effect of rotating the fixing plate.

[0017] Optionally, the moving plate is slidably arranged on the bottom plate along the direction of approaching or departing from the six-high cold rolling mechanism, and a moving mechanism for driving the moving plate to move is arranged on the bottom plate.

[0018] By adopting the above technical solution, the distance between the feeding roller and the six-high cold rolling mechanism is conveniently adjusted through the moving mechanism, thus facilitating the feeding and receiving of the feeding roller, and further improving the feeding effect of the feeding roller.

[0019] Optionally, a chute is opened on the bottom plate, a slider fixedly connected to the moving plate is slidably connected in the chute, the moving mechanism includes a screw rod rotatably arranged in the chute along the length direction of the chute, the slider is sleeved and threadedly connected to the screw rod, and a moving motor for driving the screw rod to rotate is fixedly arranged on the bottom plate.

[0020] By adopting the above technical solution, the screw rod is rotated by the moving motor. Since the slider is slidably arranged in the chute, the slider will not rotate along with the rotation of the screw rod, so that the slider moves on the screw rod, and the slider drives the moving plate to move on the bottom plate. The screw rod driving method can drive the moving plate to be fixed at any moved position, improving the driving effect on the moving plate.

[0021] Optionally, the feeding roller at the upper part of the fixed plate is slidably arranged on the fixed plate towards or away from the feeding roller at the lower part, and a driving mechanism for driving the feeding roller at the upper part to move towards or away from the feeding roller at the lower part is arranged on the fixed plate.

[0022] By adopting the above technical solution, the driving mechanism drives the feeding roller at the upper part to move towards the feeding roller at the lower part, thereby adjusting the distance between the two feeding rollers on the fixed plate, so that the feeding rollers with different distances can convey strip steel with different thicknesses, further improving the applicability.

[0023] Optionally, the driving mechanism includes a driving electric cylinder and a driving block. The driving electric cylinder is fixedly arranged on the fixed plate, the driving block is fixedly arranged on the driving end of the driving electric cylinder, and the feeding roller is rotatably arranged on the two driving blocks on both sides.

[0024] By adopting the above technical solution, the driving electric cylinder drives the driving block to move up and down, so that the driving block drives the feeding roller at the upper part to move up and down, thereby adjusting the distance between the two feeding rollers on the fixed plate. The arrangement of the driving block will not affect the rotation of the feeding roller, facilitating the conveying of the strip steel.

[0025] In the second aspect, in order to facilitate the operator to convey the strip steel to a higher position for cold rolling, the present application provides a rolling method for producing ultra-thin strip steel by a cold rolling six-high single-stand reversing mill.

[0026] The rolling method for producing ultra-thin strip steel by the cold rolling six-high single-stand reversing mill provided by the present application adopts the following technical solution:

[0027] A rolling method for producing ultra-thin strip steel by a cold rolling six-high single-stand reversing mill, including the cold rolling six-high single-stand reversing mill described above, comprises the following steps:

[0028] When it is necessary to produce ultra-thin strip steel, the feeding roller is driven to descend by the lifting electric cylinder. The operator places the strip steel between the two feeding rollers of one side feeding mechanism. The driving motor drives the bidirectional lead screw to rotate, thereby adjusting the distance between the two adjusting plates on both sides, so that the strip steel is erected between the feeding rollers on the two adjusting plates on both sides. The driving electric cylinder can drive the upper feeding roller to move towards the lower feeding roller, so that the upper and lower feeding rollers clamp the strip steel. The lifting electric cylinder drives the feeding roller to rise again, so that the strip steel is opposite to the feeding end of the six-high cold rolling mechanism. At this time, the driving motor can drive the lower feeding roller to rotate, so that the feeding roller realizes the conveying of the strip steel. The moving motor can drive the moving plate to move on the bottom plate, so that the feeding roller moves to a position close to the six-high cold rolling mechanism to pick up or convey the strip steel. The feeding mechanisms on both sides of the bottom plate can realize the repeated cold rolling of the strip steel, thus realizing the production of extremely thin strip steel.

[0029] By adopting the above technical solution, by lifting and lowering the feeding roller, it is convenient for the operator to pick up or convey the strip steel. By repeatedly cold rolling the strip steel, the processing effect of the strip steel is improved, and it is applicable to strip steels of different thicknesses and lengths, improving the applicability of the entire six-high single-stand reversible cold rolling mill.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. The lifting mechanism can drive the feeding roller to lift and lower, so that the feeding roller can descend to a position close to the ground, thus facilitating the operator to place the strip steel between the two feeding rollers. When the strip steel is between the feeding rollers on the two adjusting plates on both sides, the lifting mechanism can drive the feeding roller to lift and lower, so as to convey the strip steel into the six-high cold rolling mechanism for processing. Feeding mechanisms are arranged on both sides of the bottom plate, so that the feeding mechanisms on both sides repeatedly convey the strip steel into the six-high single-stand reversible cold rolling mill for processing; the adjusting mechanism drives the two adjusting plates to approach or move away from each other, thereby adjusting the distance between the two adjusting plates on both sides, so that the adjusting plates with different distances can carry and convey strip steels of different lengths, improving the applicability of the entire six-high single-stand reversible cold rolling mill;

[0032] 2. The rotating mechanism drives the hinge shaft to rotate, so that the hinge plate drives the feeding roller on the fixed plate to further adjust the feeding direction, facilitating the conveying of the strip steel to higher or lower positions, and further facilitating the operator to convey the materials;

[0033] 3. The moving mechanism facilitates the adjustment of the distance between the feeding roller and the six-high cold rolling mechanism, thus facilitating the feeding and receiving of the feeding roller, and further improving the feeding effect of the feeding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0035] Figure 2 It is a schematic structural diagram for showing the moving plate, adjusting plate and feeding roller in the embodiments of the present application.

[0036] Explanation of reference numerals: 1, bottom plate; 11, six-roll cold rolling mechanism; 12, moving plate; 121, adjusting plate; 122, fixing plate; 123, feeding roller; 124, hinge plate; 125, driving motor; 13, sliding groove; 131, slider; 132, screw rod; 133, moving motor; 14, adjusting groove; 141, adjusting block; 142, bidirectional lead screw; 143, adjusting motor; 15, lifting electric cylinder; 16, hinge shaft; 161, worm gear; 162, worm; 163, rotating motor; 17, driving electric cylinder; 171, driving block. Specific embodiments

[0037] The following will Figure 1-2 make a further detailed description of the present application in conjunction with the attached drawings.

[0038] The embodiments of the present application disclose a cold rolling six-high single-stand reversible rolling mill. Referring to Figure 1 , a cold rolling six-high single-stand reversible rolling mill includes a bottom plate 1, and a six-roll cold rolling mechanism 11 for processing strip steel is arranged on the bottom plate 1. Feeding mechanisms are arranged on both sides of the six-roll cold rolling mechanism 11 on the bottom plate 1.

[0039] Combined with Figure 1 and Figure 2 , each feeding mechanism includes a moving plate 12, an adjusting plate 121, a fixing plate 122 and a feeding roller 123. The moving plate 12 is arranged on the bottom plate 1, and the moving plate 12 is slidably arranged on the bottom plate 1 along the direction of approaching or departing from the six-roll cold rolling mechanism 11. Adjusting plates 121 are arranged on the moving plate 12 at positions close to and far from the six-roll cold rolling mechanism 11. The two adjusting plates 121 are slidably arranged on the moving plate 12 along the direction of approaching or departing from each other. Hinge plates 124 are arranged on both sides of the adjusting plate 121, fixing plates 122 are arranged on both hinge plates 124, and feeding rollers 123 are rotatably arranged between the two fixing plates 122 at the upper and lower parts of the fixing plates 122. A driving motor 125 for driving the lower feeding roller 123 to rotate is arranged on the fixing plate 122.

[0040] Combined with Figure 1 and Figure 2, a chute 13 is formed on the bottom plate 1, and a slider 131 which is fixedly arranged on the moving plate 12 and slidably connected in the chute 13 is provided. In this embodiment, the cross-section of the chute 13 is arranged in a "T" shape, and the slider 131 is arranged in cooperation with the "T"-shaped chute 13. A moving mechanism for driving the moving plate 12 to move is arranged on the bottom plate 1; the moving mechanism includes a screw rod 132 rotatably arranged in the chute 13 along the length direction of the chute 13, the slider 131 is sleeved and threadedly connected on the screw rod 132, and a moving motor 133 for driving the screw rod 132 to rotate is fixedly arranged on the bottom plate 1; by driving the screw rod 132 to rotate through the moving motor 133, the slider 131 moves on the screw rod 132, so that the slider 131 drives the moving plate 12 to move on the bottom plate 1, thereby adjusting the distance between the feeding roller 123 and the six-roll cold rolling mechanism 11.

[0041] Combined with Figure 1 and Figure 2 , an adjusting groove 14 is formed on the moving plate 12, and adjusting blocks 141 which are fixedly arranged on both sides of the adjusting plate 121 and slidably connected in the adjusting groove 14 are provided. In this embodiment, the cross-section of the adjusting groove 14 is arranged in a "T" shape, and the adjusting block 141 is arranged in cooperation with the "T"-shaped adjusting groove 14; an adjusting mechanism for driving the two adjusting plates 121 to approach or separate from each other is arranged on the moving plate 12, the adjusting mechanism includes a bidirectional lead screw 142 rotatably arranged in the adjusting groove 14 along the length direction of the adjusting groove 14, and the two adjusting blocks 141 are sleeved and threadedly connected on the threaded parts at both ends of the bidirectional lead screw 142, and an adjusting motor 143 for driving the bidirectional lead screw 142 to rotate is fixedly arranged on the moving plate 12.

[0042] By driving the bidirectional lead screw 142 to rotate through the adjusting motor 143, since the adjusting block 141 is slidably arranged in the adjusting groove 14, the adjusting block 141 will not rotate following the rotation of the bidirectional lead screw 142, so that the two adjusting blocks 141 drive the two adjusting plates 121 to approach or separate from each other, thereby adjusting the distance between the two feeding rollers 123, so that the two feeding rollers 123 can convey strip steel with different lengths.

[0043] Combined with Figure 1 and Figure 2 , a lifting mechanism for driving the fixed plate 122 to drive the feeding roller 123 to lift is arranged on the adjusting plate 121; the lifting mechanism includes a lifting electric cylinder 15 fixedly arranged on the adjusting plate 121, and a hinged plate 124 is fixedly arranged on the driving end of the lifting electric cylinder 15; by driving the hinged plate 124 to lift through the lifting electric cylinder 15, the hinged plate 124 drives the feeding roller 123 on the fixed plate 122 to lift, thereby adjusting the height of the feeding roller 123, which is convenient for the operator to convey and take the strip steel.

[0044] Combined with Figure 1 and Figure 2, a hinge shaft 16 which is fixedly arranged on the fixed plate 122 and penetrates through and is rotatably connected to the hinge plate 124 is provided. The hinge shaft 16 is arranged parallel to the feeding roller 123. A rotating mechanism for driving the hinge shaft 16 to drive the fixed plate 122 to rotate is arranged on the hinge plate 124; the rotating mechanism includes a worm gear 161, a worm 162 and a rotating motor 163. The worm gear 161 is sleeved and fixedly connected to the hinge shaft 16. The worm 162 is fixedly arranged on the driving end of the rotating motor 163 and meshes with the worm gear 161. The rotating motor 163 is fixedly arranged on the hinge plate 124; by driving the worm 162 to rotate through the rotating motor 163, the worm 162 drives the worm gear 161 to rotate, so that the worm gear 161 drives the hinge shaft 16 to rotate, so that the hinge shaft 16 drives the fixed plate 122 to rotate, so that the fixed plate 122 drives the upper and lower feeding rollers 123 to adjust the feeding direction, and further conveys materials to lower or higher positions.

[0045] Combined with Figure 1 and Figure 2 , the feeding roller 123 on the upper part of the fixed plate 122 is slidably arranged on the fixed plate 122 towards or away from the feeding roller 123 on the lower part. A driving mechanism for driving the feeding roller 123 on the upper part to move towards or away from the feeding roller 123 on the lower part is arranged on the fixed plate 122; the driving mechanism includes a driving electric cylinder 17 and a driving block 171. The driving electric cylinder 17 is fixedly arranged on the fixed plate 122. The driving block 171 is fixedly arranged on the driving end of the driving electric cylinder 17. The feeding roller 123 is rotatably arranged on the two driving blocks 171; by driving the driving block 171 to move through the driving electric cylinder 17, the distance between the feeding roller 123 on the upper part and the feeding roller 123 on the lower part is adjusted, so that the feeding rollers 123 with different distances can convey strip steel with different thicknesses.

[0046] A rolling method for producing extremely thin strip steel by a cold rolling six-high single-stand reversible rolling mill, including a cold rolling six-high single-stand reversible rolling mill, comprising the following steps:

[0047] When it is necessary to produce ultra-thin strip steel, the feeding roller 123 is lowered by the lifting electric cylinder 15. The operator places the strip steel between the two feeding rollers 123 of one side feeding mechanism. The bidirectional lead screw 142 is rotated by the adjusting motor 143, so as to adjust the distance between the two adjusting plates 121 on both sides, making the strip steel be erected between the feeding rollers 123 on the two adjusting plates 121 on both sides. The driving electric cylinder 17 can drive the upper feeding roller 123 to move towards the lower feeding roller 123, so that the upper and lower feeding rollers 123 clamp the strip steel. The lifting electric cylinder 15 drives the feeding roller 123 to rise again, making the strip steel opposite to the feeding end of the six-high cold rolling mechanism 11. At this time, the driving motor 125 can drive the lower feeding roller 123 to rotate, so that the feeding roller 123 realizes the conveying of the strip steel. The moving motor 133 can drive the moving plate 12 to move on the bottom plate 1, so that the feeding roller 123 moves to a position close to the six-high cold rolling mechanism 11 to pick up or convey the strip steel. The feeding mechanisms on both sides of the bottom plate 1 can realize the repeated cold rolling of the strip steel, thus realizing the production of extremely thin strip steel.

[0048] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A cold rolling six-high single stand reversible rolling mill, including a bottom plate (1), and a six-high cold rolling mechanism (11) for processing strip steel is arranged on the bottom plate (1). Characterized in that: Feeding mechanisms are arranged on both sides of the bottom plate (1) and located on both sides of the six-high cold rolling mechanism (11). Each feeding mechanism includes a moving plate (12), an adjusting plate (121), a fixing plate (122) and a feeding roller (123). The moving plate (12) is arranged on the bottom plate (1). The adjusting plates (121) are arranged at positions on the moving plate (12) close to and far from the six-high cold rolling mechanism (11). The two adjusting plates (121) are slidably arranged on the moving plate (12) in a direction of approaching or separating from each other. The fixing plates (122) are arranged on both sides of the adjusting plate (121). The feeding rollers (123) are rotatably arranged between the two fixing plates (122) at the upper and lower parts of the fixing plates (122). A driving motor (125) for driving the lower feeding roller (123) to rotate is arranged on the fixing plate (122). An adjusting mechanism for driving the two adjusting plates (121) to approach or separate from each other is arranged on the moving plate (12). A lifting mechanism for driving the fixing plate (122) to drive the feeding roller (123) to lift is arranged on the adjusting plate (121).

2. The cold rolling six-high single stand reversible rolling mill according to claim 1, Characterized in that: An adjusting groove (14) is formed on the moving plate (12). Adjusting blocks (141) slidably connected in the adjusting groove (14) are fixedly arranged on both sides of the two adjusting plates (121). The adjusting mechanism includes a bidirectional lead screw (142) rotatably arranged in the adjusting groove (14) along the length direction of the adjusting groove (14). The two adjusting blocks (141) are sleeved and threadedly connected to the threaded parts at both ends of the bidirectional lead screw (142). An adjusting motor (143) for driving the bidirectional lead screw (142) to rotate is fixedly arranged on the moving plate (12).

3. The cold rolling six-high single stand reversible rolling mill according to claim 2, Characterized in that: The lifting mechanism includes a lifting electric cylinder (15) fixedly arranged on the adjusting plate (121). The fixing plate (122) is fixedly arranged on the driving end of the lifting electric cylinder (15).

4. The cold rolling six-high single stand reversible rolling mill according to claim 3, Characterized in that: A hinged plate (124) is fixedly arranged on the driving end of the lifting electric cylinder (15). A hinged shaft (16) fixedly arranged on the fixing plate (122) and passing through and rotatably connected to the hinged plate (124) is arranged. The fixing plate (122) is arranged on the driving end of the lifting electric cylinder (15) through the hinged shaft (16) and the hinged plate (124). A rotating mechanism for driving the hinged shaft (16) to drive the fixing plate (122) to rotate is arranged on the hinged plate (124).

5. The cold rolling six-high single stand reversible rolling mill according to claim 4, It is characterized in that: The rotation mechanism includes a worm gear (161), a worm (162) and a rotation motor (163). The worm gear (161) is sleeved and fixedly connected to the hinge shaft (16). The worm (162) is fixedly arranged on the driving end of the rotation motor (163) and meshes with the worm gear (161). The rotation motor (163) is fixedly arranged on the hinge plate (124).

6. A cold rolling six-high single stand reversible rolling mill according to claim 5, It is characterized in that: The moving plate (12) is slidably arranged on the bottom plate (1) in a direction close to or away from the six-high cold rolling mechanism (11). A moving mechanism for driving the moving plate (12) to move is arranged on the bottom plate (1).

7. A cold rolling six-high single stand reversible rolling mill according to claim 6, It is characterized in that: A chute (13) is formed on the bottom plate (1). A slider (131) fixedly connected and slidably arranged in the chute (13) is arranged on the moving plate (12). The moving mechanism includes a screw rod (132) rotatably arranged in the chute (13) along the length direction of the chute (13). The slider (131) is sleeved and threadedly connected to the screw rod (132). A moving motor (133) for driving the screw rod (132) to rotate is fixedly arranged on the bottom plate (1).

8. A cold rolling six-high single stand reversible rolling mill according to claim 7, It is characterized in that: The feeding roller (123) at the upper part of the fixing plate (122) is slidably arranged on the fixing plate (122) in a direction close to or away from the feeding roller (123) at the lower part. A driving mechanism for driving the feeding roller (123) at the upper part to move close to or away from the feeding roller (123) at the lower part is arranged on the fixing plate (122).

9. A cold rolling six-high single stand reversible rolling mill according to claim 8, It is characterized in that: The driving mechanism includes a driving electric cylinder (17) and a driving block (171). The driving electric cylinder (17) is fixedly arranged on the fixing plate (122). The driving block (171) is fixedly arranged on the driving end of the driving electric cylinder (17). The feeding roller (123) is rotatably arranged on the two driving blocks (171).

10. A rolling method for producing extremely thin strip steel by a cold rolling six-high single stand reversible rolling mill, It is characterized in that: It includes the cold rolling six-high single stand reversible rolling mill according to claim 9, and the following steps are included: When it is necessary to produce ultra-thin strip steel, the feeding roller (123) is driven to descend by the lifting electric cylinder (15). The operator places the strip steel between the two feeding rollers (123) of one side feeding mechanism. The bidirectional lead screw (142) is driven to rotate by the adjusting motor (143), so as to adjust the distance between the two adjusting plates (121) on both sides, so that the strip steel is placed between the feeding rollers (123) arranged on the adjusting plates (121) on both sides. The driving electric cylinder (17) can drive the upper feeding roller (123) to move towards the lower feeding roller (123), so that the upper and lower feeding rollers (123) clamp the strip steel. The lifting electric cylinder (15) drives the feeding roller (123) to rise again, so that the strip steel is opposite to the feeding end of the six-high cold rolling mechanism (11). At this time, the driving motor (125) can drive the lower feeding roller (123) to rotate, so that the feeding roller (123) realizes the conveying of the strip steel. The moving motor (133) can drive the moving plate (12) to move on the bottom plate (1), so that the feeding roller (123) moves to a position close to the six-high cold rolling mechanism (11) to pick up or convey the strip steel. The feeding mechanisms on both sides of the bottom plate (1) can realize the repeated cold rolling of the strip steel, thus realizing the production of extremely thin strip steel.

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