CN215844969U

CN215844969U - Straightening machine for cold-rolled steel plate

Info

Publication number: CN215844969U
Application number: CN202121426025.XU
Authority: CN
Inventors: 王明超; 刘�东; 秦伟; 刘欢; 刘彦春
Original assignee: Tangshan Iron and Steel Group Co Ltd; HBIS Co Ltd Tangshan Branch
Current assignee: Tangshan Iron and Steel Group Co Ltd; HBIS Co Ltd Tangshan Branch
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-02-18
Anticipated expiration: 2031-06-25

Abstract

The utility model relates to a straightening machine for a cold-rolled steel plate, and belongs to the technical field of metallurgical rolling equipment. Install two sets of straightening mechanisms on the support frame including support frame and longitudinal symmetry, every straightening mechanism includes first straightening subassembly, second straightening subassembly, third straightening subassembly and fourth straightening subassembly, first straightening subassembly is including rotating the pivot of installing on the support frame, install a plurality of first straightening rollers in the pivot, per two install the shaft coupling between the first straightening roller, it is a plurality of the shaft coupling is connected a plurality of pivots. Make the multistage pivot probably take place less relative displacement when the roller extrudees to straightening more, these displacements are eliminated the compensation by the shaft coupling of connecting the pivot, and the shaft coupling self allows to take place less displacement and not damage between the pivot, has eliminated the deformation of pivot self or pivot and squeeze roll contact department, improves the quality of correcting of steel sheet for the life of pivot increases and reduces maintenance frequency and cost of maintenance.

Description

Straightening machine for cold-rolled steel plate

Technical Field

The utility model relates to a straightening machine for a cold-rolled steel plate, and belongs to the technical field of metallurgical rolling equipment.

Background

At present, the straightener of wide application in the steel rolling field, especially cold-rolled steel sheet straightener, along with the increase of steel sheet plate thickness, in order to provide sufficient extrusion force, the diameter of straightening roller grow thereupon, but also because the increase of straightening roller diameter, when steel sheet surface unevenness, the steel sheet also produces the reaction force to the straightening roller when the straightening roller produces the extrusion force to the steel sheet, this reaction force makes and drives straightening roller pivoted pivot and receive the bending force, make straightening roller and pivot junction and pivot and support bearing junction often take place to warp or even fracture. The uneven stress of the rotating shaft causes uneven pressure distribution of the straightening roller, influences the straightened steel plate, causes secondary deformation of the plate type and influences the straightening quality of the steel plate. Therefore, a straightening machine for a cold-rolled steel plate needs to be designed, so that the uniform stress of the rotating shaft in the operation of the straightening roller is realized, the risk of breakage of the rotating shaft is reduced, and the straightening quality of the steel plate is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a straightening machine for a cold-rolled steel plate, which realizes uniform stress of a rotating shaft in the operation of a straightening roller, reduces the risk of breakage of the rotating shaft and improves the straightening quality of the steel plate.

In order to solve the defects of the prior art, the utility model provides the following technical scheme:

the utility model provides a straightener for cold-rolled steel sheet, includes the support frame, still includes two sets of aligning mechanisms of longitudinal symmetry installation on the support frame, every group aligning mechanism includes first aligning subassembly, middle aligning subassembly, terminal aligning subassembly, first aligning subassembly and terminal aligning subassembly set up respectively at the support frame both ends, and middle aligning subassembly sets up between first aligning subassembly and terminal aligning subassembly, middle aligning subassembly is provided with 1-4 groups, first aligning subassembly, middle aligning subassembly, terminal aligning subassembly include pivot, straightener roll, shaft coupling, and the straightener roll on every group aligning subassembly is the same, pivot rotation assembly installs on the support frame, and straightener roll assembly fixes in the pivot, installs the shaft coupling between the straightener roll, and is a plurality of the shaft coupling is connected a plurality of pivots, first aligning subassembly, middle aligning subassembly, The number of the straightening rollers assembled on the tail end straightening assembly is sequentially decreased, the length of the roller body is sequentially increased, the number of the straightening rollers between adjacent assemblies is different by 1-3, and the roller gaps of the straightening rollers between the adjacent assemblies are distributed in a staggered mode.

In the straightener for cold rolled steel sheets as described above, the diameters of the straightening rolls of the first straightening assembly, the intermediate straightening assembly and the tail end straightening assembly are sequentially reduced by a reduction ratio of 0.6 to 0.8.

As described above, one side of the middle straightening assembly can be provided with the compensation straightening roller, the diameter of the compensation straightening roller is the same as that of the straightening roller on the same assembly, and the distance between the roller body and the adjacent straightening roller is matched with that between the side wall of the support frame.

In the leveler for a cold rolled steel sheet as described above, the straightening rolls of the tip straightening assembly are 1 piece.

In the straightener for cold rolled steel sheets as described above, the straightening rolls of the first straightening assembly are 5 to 8.

In the straightening machine for the cold-rolled steel plate, the ball is rotatably arranged between the two groups of straightening mechanisms on the supporting frame.

In the straightening machine for the cold-rolled steel plate, the spray head is arranged on the support frame.

According to the straightening machine for the cold-rolled steel plate, the two inlet guide plates are fixedly mounted on the supporting frame and are distributed at the steel plate inlet in a V shape, the inclined discharge plates are arranged at the output ports of the two groups of straightening mechanisms, one end of each discharge plate is fixed on the supporting frame, and the bottom of the other end of each discharge plate is provided with the supporting legs for supporting and fixing.

In the leveler for a cold rolled steel sheet as described above, the coupling is a flexible coupling or an elastic coupling.

Compared with the prior art, the utility model has the beneficial effects that:

in the straightening process, when a plurality of pairs of straightening rollers are extruded, the plurality of sections of rotating shafts are likely to generate small relative displacement, the displacement is eliminated and compensated by the couplers connected with the rotating shafts, the couplers allow the rotating shafts to generate small displacement without damage, the deformation of the rotating shafts or the contact parts of the rotating shafts and the extruding rollers is eliminated, the service life of the rotating shafts is prolonged, and the maintenance frequency and the maintenance cost are reduced.

Drawings

FIG. 1 is a side view of the apparatus of the present invention;

FIG. 2 is a top view of the straightening mechanism and the supporting frame of the device of the present invention;

FIG. 3 is a schematic view of the assembly of the rotating shaft and the straightening roll of the device of the present invention;

in the figure: the device comprises a support frame 1, a rotating shaft 2, a first straightening roller 3, a coupling 4, a second straightening roller 5, a compensation straightening roller 6, a third straightening roller 7, a fourth straightening roller 8, an inlet guide plate 9, a ball 10, a spray head 11, a discharge plate 12 and a support leg 13.

Detailed Description

The utility model is described in further detail below with reference to the figures and the detailed description.

As shown in the attached drawing, the embodiment provides a straightener for cold-rolled steel sheet, including support frame 1 and two sets of straightening mechanisms that the longitudinal symmetry installed on support frame 1, every straightening mechanism includes first straightening subassembly, terminal straightening subassembly, sets up second straightening subassembly, third straightening subassembly between the two, first straightening subassembly is including rotating pivot 2 of installing on support frame 1, the straightening roller of installation is first straightening roller 3 in pivot 2, and quantity is 6, and per two install shaft coupling 4 between first straightening roller 3, it is a plurality of shaft coupling 4 is connected a plurality of pivot 2. The second straightening assembly comprises a rotating shaft 2 which is rotatably arranged on the support frame 1, the straightening rollers arranged on the rotating shaft 2 are second straightening rollers 5, the number of the straightening rollers is 3, a coupler 4 used for connecting two adjacent rotating shafts 2 is arranged between two adjacent second straightening rollers 5, one end of the second straightening assembly is provided with a compensation straightening roller 6 arranged on the rotating shaft 2, and the gaps between the two adjacent second straightening rollers 5 and the compensation straightening rollers 6 and the gaps between the two adjacent first straightening rollers 3 in the first straightening assembly are staggered and arranged. The compensating straightening roll 6 is used for complementing the length of the second straightening assembly, so that the length of the second straightening assembly is not less than that of the first straightening assembly. The third straightening assembly comprises a rotating shaft 2 which is rotatably arranged on the support frame 1, the number of the third straightening rollers 7 which are arranged on the rotating shaft 2 is 2, a coupler 4 which is used for connecting two adjacent sections of rotating shafts 2 is arranged between two third straightening rollers 7, and the gap between two third straightening rollers 7 and the gap between two adjacent second straightening rollers 5 are arranged in a staggered mode. The tail end straightening assembly comprises a rotating shaft 2 which is rotatably arranged on the support frame 1, the straightening rollers arranged on the rotating shaft 2 are fourth straightening rollers 8, the lengths of the fourth straightening rollers 8 are not less than the distance between the outer side end faces of the two farthest third straightening rollers 7 in the second assembly. The roll diameters of the straightening rolls of the first straightening assembly, the middle straightening assembly and the tail end straightening assembly are sequentially reduced, and the reduction ratio is 0.7. The coupling 4 is a flexible coupling or an elastic coupling.

Two inlet guide plates 9 are fixedly arranged on the support frame 1, and the two inlet guide plates 9 are arranged at the steel plate inlet in a V shape, so that the steel plate can quickly and accurately enter the middle of the two straightening mechanisms; a plurality of balls 10 positioned between the two groups of straightening mechanisms are uniformly and rotatably arranged on the support frame 1, so that the friction between the steel plate and the support frame 1 is reduced; a plurality of spray heads 11 arranged on the support frame 1 are arranged above the straightening mechanism, and the spray heads 11 are connected with an air pump or a water pump to clean and blow the scraps or surface dust generated in the extrusion process; the output ports of the two groups of straightening mechanisms are provided with inclined discharge plates 12, and the discharge plates 12 are arranged on supporting legs 13 and used for guiding the steel plates to smoothly discharge from the straightening machine.

When the straightening device is used, a cold-rolled steel plate is placed between the two groups of straightening mechanisms, when the steel plate reaches between the two groups of first straightening assemblies, the local areas on the steel plate are respectively extruded and straightened by the pairs of first straightening rollers 3 in the two groups of first straightening assemblies, so that the surface of the steel plate with the unevenness is preliminarily straightened; then the steel sheet gets into in two sets of second straightening assemblies, many straighten the steel sheet once more to second straightening roller 5, and many will not straighten with the few steel sheets of first straightening assembly contact to second straightening roller 5, make more straight, then the steel sheet passes through in proper order between two sets of third straightening assemblies and two sets of fourth straightening assemblies, two fourth straightening rollers 8 in the fourth straightening assembly are whole carries out final comprehensive disposable straightening with the steel sheet, the steel sheet has been flat basically this moment, carry out final work of making level to the steel sheet with two holistic fourth straightening rollers 8, make the steel sheet surface on same horizontal plane, improve and correct the quality. In the straightening process, when a plurality of pairs of straightening rollers are extruded, the plurality of sections of rotating shafts 2 are likely to generate smaller relative displacement, the displacements are eliminated and compensated by the couplers 4 connected with the rotating shafts 2, the couplers 4 allow the rotating shafts 2 to generate smaller displacement without damage, the deformation of the rotating shafts 2 or the contact parts of the rotating shafts 2 and the extruding rollers is eliminated, the service life of the rotating shafts 2 is prolonged, and the maintenance frequency and the maintenance cost are reduced.

The diameters of the straightening rollers in the multiple groups of straightening assemblies are sequentially reduced, the first straightening roller 3 which is in contact with the steel plate for the first time is larger in diameter, and larger extrusion force is generated on the uneven steel plate, so that the steel plate has larger reaction force on the rotating shaft 2 where the first straightening roller 3 is located, the rotating shaft 2 is subjected to larger tangential force, the rotating shaft 2 is designed into multiple sections at the moment, the first straightening rollers 3 are correspondingly arranged, and the risk that the whole rotating shaft 2 is broken by the larger tangential force is avoided; the diameter of the fourth straightening roller 8 finally used for leveling and straightening is small, the steel plate is basically flat at the moment, excessive extrusion force is not needed, the reaction force of the steel plate on the fourth straightening roller 8 is small, the rotating shaft 2 where the fourth straightening roller 8 is located is subjected to small force, and therefore the fourth straightening roller 8 does not need to be decomposed into a multi-section design at the moment. The design of the multi-section type straightening rollers with gradually reduced quantity can effectively reduce the risk of breakage or distortion of the rotating shaft 2 and improve the straightening quality of the steel plate.

Claims

1. The utility model provides a straightener for cold-rolled steel sheet, includes support frame (1), characterized by, still includes two sets of straightening mechanisms that the longitudinal symmetry installed on support frame (1), every straightening mechanism of group includes first straightening subassembly, middle straightening subassembly, terminal straightening subassembly, first straightening subassembly and terminal straightening subassembly set up respectively at support frame (1) both ends, and middle straightening subassembly sets up between first straightening subassembly and terminal straightening subassembly, middle straightening subassembly is provided with 1-4 groups, first straightening subassembly, middle straightening subassembly, terminal straightening subassembly include pivot (2), straightening roller, shaft coupling (4), and the straightening roller on every straightening subassembly of group is the same, pivot (2) rotate assembly mount on support frame (1), and the straightening roller assembly is fixed on pivot (2), installs shaft coupling (4) between the straightening roller, the plurality of rotating shafts (2) are connected through the plurality of couplers (4), the number of straightening rollers assembled on the first straightening assembly, the middle straightening assembly and the tail end straightening assembly is sequentially decreased progressively, the length of a roller body is sequentially increased progressively, the number of the straightening rollers between adjacent assemblies is different by 1-3, and the roller gaps of the straightening rollers between the adjacent assemblies are distributed in a staggered mode.

2. The leveler for cold rolled steel sheet according to claim 1, wherein the diameters of the straightening rolls of said first straightening module, intermediate straightening module and end straightening module are successively reduced by a reduction ratio of 0.6 to 0.8.

3. Straightening machine for cold-rolled steel sheets according to claim 1, characterized in that the intermediate straightening assembly is provided on one side with a compensating straightening roll (6), the diameter of the compensating straightening roll (6) is the same as that of the straightening roll in the same assembly, and the distance between the roll body and the adjacent straightening roll and the side wall of the supporting frame (1) is matched.

4. The leveler for cold rolled steel sheet according to claim 1, wherein the straightening rolls of said tip straightening assembly are 1 piece.

5. The leveler for cold rolled steel sheet according to claim 1, wherein the leveling rolls of said first leveling assembly are 5-8 pieces.

6. Straightening machine for cold-rolled steel sheets, in accordance with claim 1, characterized in that the support frame (1) is rotatably fitted with balls (10) between two sets of straightening means.

7. Straightening machine for cold-rolled steel sheets, in accordance with claim 1, characterized in that the supporting frame (1) is provided with spray heads (11).

8. The straightening machine for cold rolled steel sheets as claimed in claim 1, wherein two inlet guide plates (9) are fixedly mounted on the supporting frame (1), the two inlet guide plates (9) are arranged at the steel sheet inlet in a V shape, the outlet positions of the two straightening mechanisms are provided with inclined discharge plates (12), one end of each discharge plate (12) is fixed on the supporting frame (1), and the bottom of the other end of each discharge plate is provided with a supporting leg (13) for supporting and fixing.

9. Straightening machine for cold-rolled steel sheets according to claim 1, characterized in that the coupling (4) is a flexible coupling or an elastic coupling.