CN112404127B - Cold rolling mill and cold rolling process for steel strip - Google Patents
Cold rolling mill and cold rolling process for steel strip Download PDFInfo
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- CN112404127B CN112404127B CN202011311636.XA CN202011311636A CN112404127B CN 112404127 B CN112404127 B CN 112404127B CN 202011311636 A CN202011311636 A CN 202011311636A CN 112404127 B CN112404127 B CN 112404127B
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- 238000005097 cold rolling Methods 0.000 title claims abstract description 142
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000008569 process Effects 0.000 title claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 101
- 238000003825 pressing Methods 0.000 claims abstract description 30
- 239000000428 dust Substances 0.000 claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims description 40
- 238000003466 welding Methods 0.000 claims description 25
- 230000006698 induction Effects 0.000 claims description 19
- 239000010960 cold rolled steel Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0064—Uncoiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0092—Welding in the rolling direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
A cold rolling mill and a cold rolling process for a steel strip comprise an uncoiler, a second coiling machine, a cold rolling mechanism, a first coiling machine, a first supporting plate, a pressing plate, a third supporting plate and a first cutter; a steel belt to be rolled is wound on the uncoiler; a strip blank is wound on the second coiling machine; the cold rolling mechanism is positioned between the uncoiler and the second coiler; the first coiler is positioned below the strip to be rolled; the first supporting plate is arranged on the end face of the first reeling machine, and the second supporting plate is arranged on the first supporting plate; the pressing plates are arranged on the two groups of second supporting plates, and the first supporting plate is provided with a first electric telescopic rod; a fourth supporting plate and a fifth supporting plate are arranged on the two groups of third supporting plates; the first cutter is arranged at the bottom of the fourth supporting plate; the strip blank is provided with a sensing plate, and the fifth supporting plate is provided with a first photoelectric sensor; the cold rolling mill is provided with a control system. The invention can ensure the cold rolling effect of the starting end of the strip to be rolled, and removes dust and wipes oil before the strip to be rolled is cold rolled, thereby further improving the cold rolling effect.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a cold rolling mill and a cold rolling process for a steel strip.
Background
The cold rolling mill is a main device for cold rolling production, and in order to meet the requirements of varieties, specifications, quality and different production scales of the cold rolling steel strip production, the cold rolling steel strip production process is changed from single-sheet rolling to coiling production, the equipment level of the modern cold rolling mill tends to be high-efficiency, high-quality, continuous and automatic, the cold rolling mill becomes one of high-efficiency production devices in the modern steel industry, and is an important mark for technical development and equipment level improvement of the steel industry, but the cold rolling starting end of the steel strip is not stably operated due to the fact that traction of a winding roll is not available, the steel strip can be driven to move through the friction force of a working roll, the cold rolling quality of the starting end of the steel strip is unstable, even abnormal shutdown is caused by the influence of shaking of the steel strip on the device, the production efficiency is influenced, and the service life of the cold rolling mill is shortened.
Disclosure of Invention
Objects of the invention
The invention provides a cold rolling mill for steel strips and a cold rolling process, aiming at solving the technical problems in the background art, the cold rolling effect of the starting end of a strip to be rolled can be ensured by pulling the strip to be rolled to move through a strip blank, the problem that the service life of a cold rolling mechanism is influenced even due to poor cold rolling effect caused by lack of traction of the starting end of the strip to be rolled is solved, the cold rolling effect of the starting end of the strip to be rolled is ensured, the service life of the cold rolling mechanism is prolonged, dust removal and oil wiping are carried out before the strip to be rolled is cold rolled, the cold rolling effect is further improved, meanwhile, the strip blank can be cut off and cannot be wound on a first coiling machine, and the first coiling machine is ensured to be a finished steel strip after cold rolling.
(II) technical scheme
The invention provides a cold rolling mill and a cold rolling process for a steel strip, which comprise an uncoiler, a second coiling machine, a cold rolling mechanism, a first coiling machine, a first supporting plate, a pressing plate, a third supporting plate, a fourth supporting plate, a fifth supporting plate, a first cutter, a guide roller, a leveling plate and a sixth supporting plate;
the cold rolling mill is provided with a first power device for driving the uncoiler to rotate; the second coiling machine is parallel to the uncoiler, a strip blank is wound on the second coiling machine and connected with a steel strip to be rolled through a welding seam, the thickness of the strip blank is smaller than that of the steel strip after cold rolling, and a fourth power device for driving the second coiling machine to rotate is arranged on the cold rolling machine; the cold rolling mechanism is positioned between the uncoiler and the second coiling machine, a strip to be rolled passes through the cold rolling mechanism, a welding mechanism is arranged below the strip to be rolled, and the welding mechanism is positioned between the uncoiler and the cold rolling mechanism; the first recoiling machine is positioned below the strip to be rolled and is contacted with the strip to be rolled, the first recoiling machine is positioned between the cold rolling mechanism and the second recoiling machine, a strip-shaped groove is formed in the outer peripheral wall of the first recoiling machine and is vertical to the moving direction of the strip to be rolled, a first cutting groove is formed in the bottom of the strip-shaped groove, and a second power device for driving the first recoiling machine to rotate is arranged on the cold rolling machine; two groups of first supporting plates are respectively and horizontally arranged on two end faces of the first winding machine, and vertical second supporting plates are respectively arranged on the two groups of first supporting plates; the pressing plates are horizontally and slidably arranged on the two groups of second supporting plates, the sliding direction is the up-down direction, the pressing plates are perpendicular to the moving direction of the strip to be rolled, the pressing plates are located right above the strip-shaped grooves, the width of the pressing plates is smaller than that of the strip-shaped grooves, the first cutting grooves are located in front of the pressing plates in the state that the pressing plates are pressed into the strip-shaped grooves, and the first supporting plates are provided with first electric telescopic rods for driving the pressing plates to move up and down; the two groups of third supporting plates are arranged in parallel and are positioned at two sides of the first coiling machine and are symmetrical relative to the strip to be rolled; the fourth supporting plate is arranged on the two groups of third supporting plates in a sliding mode, the sliding direction is the up-down direction, and the fourth supporting plate is located above the first coiling machine; the fifth supporting plate is horizontally arranged at the tops of the two groups of third supporting plates, is parallel to the fourth supporting plate and is positioned above the fourth supporting plate, and a second electric telescopic rod for driving the fourth supporting plate to move up and down is arranged on the fifth supporting plate; the first cutter is arranged at the bottom of the fourth supporting plate and is positioned right above the first cutting groove; a horizontal induction plate is arranged on one side of the strip blank in the width direction, and a first photoelectric sensor for detecting the position of the induction plate is arranged on the fifth supporting plate;
the two groups of guide rollers are respectively positioned above and below the strip blank, the guide rollers are positioned between the first coiling machine and the second coiling machine, and a third power device for driving the guide rollers to rotate is arranged on the cold rolling machine; the two groups of leveling plates are respectively positioned above and below the strip blank, the two groups of leveling plates are both contacted with the strip blank, and the leveling plates are positioned between the guide roll and the second coiling machine; the two groups of sixth supporting plates are respectively horizontally arranged on the end surfaces of the two groups of leveling plates facing the guide roll, the bottom of the sixth supporting plate positioned above is provided with a second photoelectric sensor for detecting the position of the induction plate, and the two groups of sixth supporting plates are provided with cutting assemblies for cutting the strip blank;
the cutting assembly comprises a seventh supporting plate and a second cutter; a third vertical electric telescopic rod is arranged on the sixth supporting plate positioned below the belt blank, a vertical eighth supporting plate is arranged at the bottom of the sixth supporting plate positioned above the belt blank, a second cutting groove is formed in the bottom of the eighth supporting plate, and the second cutting groove is perpendicular to the moving direction of the belt blank; the seventh supporting plate is horizontally arranged at the telescopic end of the third electric telescopic rod and is positioned below the belt blank; the second cutter is arranged on the seventh supporting plate, is vertical to the moving direction of the strip blank and is positioned right below the second cutting groove;
the cold rolling mill is further provided with a control system, the control system is in control connection with the first power device, the second power device, the fourth power device, the cold rolling mechanism, the first electric telescopic rod, the second electric telescopic rod, the third electric telescopic rod and the cutting assembly, and the control system is in signal transmission connection with the first photoelectric sensor and the second photoelectric sensor.
Preferably, a plurality of groups of four-roller cold rolling mill units are arranged in the cold rolling mechanism, and the distances between the working rollers of the plurality of groups of four-roller cold rolling mill units are smaller and smaller in the advancing direction of the steel strip to be rolled.
Preferably, the cold rolling mill is provided with two groups of dust removing mechanisms for cleaning the surface of the strip to be rolled, the two groups of dust removing mechanisms are respectively positioned above and below the strip to be rolled, the two groups of dust removing mechanisms are positioned between the welding mechanism and the cold rolling mechanism, and the control system is in control connection with the dust removing mechanisms.
Preferably, the cold rolling mill is provided with two groups of oil wiping mechanisms for removing oil on the surface of the strip to be rolled, the two groups of oil wiping mechanisms are respectively positioned above and below the strip to be rolled, the two groups of oil wiping mechanisms are positioned between the cold rolling mechanism and the welding mechanism, and the control system is in control connection with the oil wiping mechanisms.
Preferably, a waste collection box is arranged below the sixth supporting plate, and the top of the waste collection box is opened.
Preferably, the cold rolling process of the steel strip comprises the following steps: s1, pulling the strip blank to sequentially pass through the leveling plate, the guide roll, the first coiling machine, the cold rolling mechanism, the oil wiping mechanism and the dust removing mechanism; s2, connecting the steel strip to be rolled and the strip blank through a welding seam by a welding mechanism; s3, starting the cold rolling mill, starting the second coiling machine, the cold rolling mechanism and the third power device, and driving the strip blank and the strip to be rolled to move by the rotation of the second coiling machine; s4, carrying out double-sided dust removal on the strip to be rolled through a dust removal mechanism; s5, carrying out double-sided oil removal on the strip to be rolled through an oil wiping mechanism; s6, carrying out cold rolling forming on the strip to be rolled by a cold rolling mechanism; s7, when the first photoelectric sensor detects the induction plate, the first electric telescopic rod and the second electric telescopic rod are started to extend at the same time, the pressing plate drives the cold-rolled steel strip to be pressed into the strip-shaped groove, the first cutter is inserted into the first cutting groove to cut off the cold-rolled steel strip, and then the second electric telescopic rod is retracted to the initial position; s8, starting a second power device to drive a first coiling machine to rotate, and winding the cold-rolled steel strip on the first coiling machine by the first coiling machine; s9, when the second photoelectric sensor detects the induction plate, the third electric telescopic rod extends, the second cutter is inserted into the second cutting groove to cut the material behind the induction plate, and the cut material falls into the waste collection box.
The technical scheme of the invention has the following beneficial technical effects: the strip to be rolled is pulled to move through the strip blank, the cold rolling effect of the starting end of the strip to be rolled can be guaranteed, the problem that the cold rolling effect is poor and the service life of a cold rolling mechanism is affected due to the fact that the starting end of the strip to be rolled is lack of traction is solved, the cold rolling effect of the starting end of the strip to be rolled is guaranteed, the service life of the cold rolling mechanism is prolonged, dust removal and oil wiping are conducted before the strip to be rolled is cold rolled, the cold rolling effect is further improved, meanwhile, the strip blank can be cut off and cannot be wound on a first coiling machine, and it is guaranteed that the strip to be rolled on the first coiling machine is a finished product steel strip after cold rolling.
Drawings
Fig. 1 is a schematic structural view of a cold-rolling mill for steel strip according to the present invention.
Fig. 2 is an enlarged schematic view of the section a of the cold-rolling mill for steel strip according to the invention.
Fig. 3 is an enlarged schematic view of the steel strip cold rolling mill at B.
Fig. 4 is a C-C sectional view of a cold-rolling mill for steel strip according to the present invention.
Reference numerals are as follows: 1. an uncoiler; 2. a first power unit; 3. a strip to be rolled; 4. a second coiler; 5. a fourth power unit; 6. a strip blank; 7. a cold rolling mechanism; 8. a welding mechanism; 9. a dust removal mechanism; 10. an oil wiping mechanism; 11. a first winding machine; 12. a second power unit; 13. a strip-shaped groove; 14. a first cutting groove; 15. a first support plate; 16. a second support plate; 17. pressing a plate; 18. a first electric telescopic rod; 19. an induction plate; 20. a third support plate; 21. a fourth support plate; 22. a fifth support plate; 23. a second electric telescopic rod; 24. a first cutter; 25. a first photosensor; 26. a guide roller; 27. a third power unit; 28. a screed plate; 29. a sixth support plate; 30. a third electric telescopic rod; 31. a seventh support plate; 32. a second cutter; 33. an eighth support plate; 34. a second cutting groove; 35. a second photosensor; 36. a waste collection tank; 37. and (7) welding seams.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It is to be understood that these descriptions are only illustrative and are not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 4, the cold rolling mill and the cold rolling process for a steel strip according to the present invention include an uncoiler 1, a second coiler 4, a cold rolling mechanism 7, a first coiler 11, a first support plate 15, a press plate 17, a third support plate 20, a fourth support plate 21, a fifth support plate 22, a first cutter 24, a guide roll 26, a leveling plate 28, and a sixth support plate 29;
a steel belt 3 to be rolled is wound on the uncoiler 1, and a first power device 2 for driving the uncoiler 1 to rotate is arranged on the cold rolling mill; the second recoiling machine 4 is parallel to the uncoiler 1, a strip blank 6 is wound on the second recoiling machine 4, the strip blank 6 is connected with a strip 3 to be rolled through a welding seam 37, the thickness of the strip blank 6 is smaller than that of a steel strip after cold rolling, and a fourth power device 5 for driving the second recoiling machine 4 to rotate is arranged on the cold rolling machine; the cold rolling mechanism 7 is positioned between the uncoiler 1 and the second coiling machine 4, the strip 3 to be rolled passes through the cold rolling mechanism 7, the welding mechanism 8 is arranged below the strip 3 to be rolled, and the welding mechanism 8 is positioned between the uncoiler 1 and the cold rolling mechanism 7; the first recoiling machine 11 is positioned below the strip 3 to be rolled and is contacted with the strip 3 to be rolled, the first recoiling machine 11 is positioned between the cold rolling mechanism 7 and the second recoiling machine 4, a strip-shaped groove 13 is formed in the peripheral wall of the first recoiling machine 11, the strip-shaped groove 13 is vertical to the moving direction of the strip 3 to be rolled, a first cutting groove 14 is formed in the bottom of the strip-shaped groove 13, and a second power device 12 for driving the first recoiling machine 11 to rotate is arranged on the cold rolling machine; two groups of first supporting plates 15 are respectively horizontally arranged on two end faces of the first reeling machine 11, and two groups of first supporting plates 15 are respectively provided with a vertical second supporting plate 16; the pressing plates 17 are horizontally and slidably arranged on the two groups of second supporting plates 16, the sliding direction is the up-down direction, the pressing plates 17 are perpendicular to the moving direction of the strip to be rolled 3, the pressing plates 17 are positioned right above the strip-shaped grooves 13, the width of the pressing plates 17 is smaller than that of the strip-shaped grooves 13, the first cutting grooves 14 are positioned in front of the pressing plates 17 under the state that the pressing plates 17 are pressed into the strip-shaped grooves 13, and the first supporting plates 15 are provided with first electric telescopic rods 18 for driving the pressing plates 17 to move up and down; the third supporting plates 20 are arranged in two groups which are parallel to each other, and the two groups of the third supporting plates 20 are positioned at two sides of the first coiler 11 and are symmetrical relative to the strip 3 to be rolled; the fourth supporting plate 21 is slidably arranged on the two groups of third supporting plates 20, the sliding direction is the up-down direction, and the fourth supporting plate 21 is positioned above the first reeling machine 11; the fifth supporting plate 22 is horizontally arranged at the tops of the two groups of third supporting plates 20, the fifth supporting plate 22 is parallel to the fourth supporting plate 21 and is positioned above the fourth supporting plate 21, and a second electric telescopic rod 23 for driving the fourth supporting plate 21 to move up and down is arranged on the fifth supporting plate 22; the first cutter 24 is arranged at the bottom of the fourth supporting plate 21, and the first cutter 24 is positioned right above the first cutting groove 14; a horizontal induction plate 19 is arranged on one side of the strip 6 in the width direction, and a first photoelectric sensor 25 for detecting the position of the induction plate 19 is arranged on the fifth supporting plate 22;
two groups of guide rollers 26 are arranged, the two groups of guide rollers 26 are respectively positioned above and below the strip blank 6, the guide rollers 26 are positioned between the first coiling machine 11 and the second coiling machine 4, and a third power device 27 for driving the guide rollers 26 to rotate is arranged on the cold rolling machine; two groups of leveling plates 28 are arranged, the two groups of leveling plates 28 are respectively positioned above and below the strip blank 6, the two groups of leveling plates 28 are both contacted with the strip blank 6, and the leveling plates 28 are positioned between the guide roll 26 and the second coiling machine 4; two groups of sixth supporting plates 29 are arranged, the two groups of sixth supporting plates 29 are respectively horizontally arranged on the end surfaces, facing the guide roll 26, of the two groups of leveling plates 28, a second photoelectric sensor 35 for detecting the position of the induction plate 19 is arranged at the bottom of the sixth supporting plate 29 positioned above the two groups of sixth supporting plates, and cutting assemblies for cutting the strip blank 6 are arranged on the two groups of sixth supporting plates 29;
the cutting assembly comprises a seventh supporting plate 31 and a second cutter 32; a vertical third electric telescopic rod 30 is arranged on the sixth supporting plate 29 positioned below, a vertical eighth supporting plate 33 is arranged at the bottom of the sixth supporting plate 29 positioned above, a second cutting groove 34 is formed in the bottom of the eighth supporting plate 33, and the second cutting groove 34 is perpendicular to the moving direction of the belt blank 6; the seventh supporting plate 31 is horizontally arranged at the telescopic end of the third electric telescopic rod 30, and the seventh supporting plate 31 is positioned below the belt blank 6; the second cutter 32 is arranged on the seventh supporting plate 31, the second cutter 32 is vertical to the moving direction of the belt blank 6, and the second cutter 32 is positioned right below the second cutting groove 34;
the cold rolling mill is further provided with a control system, the control system is in control connection with the first power device 2, the second power device 12, the fourth power device 5, the cold rolling mechanism 7, the first electric telescopic rod 18, the second electric telescopic rod 23, the third electric telescopic rod 30 and the cutting assembly, and the control system is in signal transmission connection with the first photoelectric sensor 25 and the second photoelectric sensor 35.
In the invention, a strip blank 6 is pulled to pass through a first coiling machine 11 and a cold rolling mechanism 7, a strip 3 to be rolled is welded with the strip blank 6 through a welding mechanism 8, the cold rolling machine is started, a second coiling machine 4 pulls the strip 3 to be rolled to move through the strip blank 6, the strip 3 to be rolled is cold rolled after passing through the cold rolling mechanism 7, when a first photoelectric sensor 25 detects a sensing plate 19, the first electric telescopic rod 18 and the second electric telescopic rod 23 are started to extend at the same time, the pressing plate 17 drives the cold-rolled steel strip to be pressed into the strip-shaped groove 13, the first cutter 24 is inserted into the first cutting groove 14 to cut off the cold-rolled steel strip, then the second electric telescopic rod 23 is retracted to the initial position, the second power device 12 is started to drive the first coiling machine 11 to rotate, the first coiling machine 11 winds the cold-rolled steel strip on the first coiling machine 11, and it is ensured that the cold-rolled steel strip is wound on the first coiling machine 11. According to the invention, the strip blank 6 pulls the strip 3 to be rolled to move, so that the cold rolling effect of the starting end of the strip 3 to be rolled can be ensured, the problem that the cold rolling effect is poor and the service life of the cold rolling mechanism 7 is influenced due to the lack of traction of the starting end of the strip 3 to be rolled is solved, the cold rolling effect of the starting end of the strip 3 to be rolled is ensured, the service life of the cold rolling mechanism 7 is prolonged, the strip blank 6 can be cut off and cannot be wound on the first coiler 11, and the condition that all the strip on the first coiler 11 is cold-rolled finished steel strips is ensured.
In an alternative embodiment, a plurality of sets of four-roller cold rolling mill units are arranged in the cold rolling mechanism 7, and the distances between the working rollers of the plurality of sets of four-roller cold rolling mill units are smaller and smaller in the advancing direction of the strip 3 to be rolled; the cold rolling mill set is arranged, so that the steel strip 3 to be rolled can be conveniently subjected to multiple cold rolling, and the cold rolling effect is improved.
In an optional embodiment, the cold rolling mill is provided with two groups of dust removing mechanisms 9 for cleaning the surface of the steel strip 3 to be rolled, the two groups of dust removing mechanisms 9 are respectively positioned above and below the steel strip 3 to be rolled, the two groups of dust removing mechanisms 9 are positioned between the welding mechanism 8 and the cold rolling mechanism 7, and the control system is in control connection with the dust removing mechanisms 9; the surface dust removal is carried out before the cold rolling of the strip to be rolled 3 so as to improve the cleanliness of the strip to be rolled 3 and facilitate the subsequent processing.
In an optional embodiment, the cold rolling mill is provided with two groups of oil wiping mechanisms 10 for removing oil on the surface of a steel strip 3 to be rolled, the two groups of oil wiping mechanisms 10 are respectively positioned above and below the steel strip 3 to be rolled, the two groups of oil wiping mechanisms 10 are positioned between a cold rolling mechanism 7 and a welding mechanism 8, and a control system is in control connection with the oil wiping mechanisms 10; the surface of the strip 3 to be rolled is kept dry, which is beneficial to subsequent processing.
In an alternative embodiment, a scrap collecting box 36 is provided below the sixth supporting plate 29, the scrap collecting box 36 being open at the top; the cut waste materials are convenient to collect.
In an alternative embodiment, a process for cold rolling a steel strip is provided, comprising the steps of:
s1, pulling the strip 6 to sequentially pass through the leveling plate 28, the guide roll 26, the first coiler 11, the cold rolling mechanism 7, the oil wiping mechanism 10 and the dust removing mechanism 9;
s2, connecting the strip 3 to be rolled and the strip blank 6 through a welding seam 37 by the welding mechanism 8; the welding mode can be manually operated, so that the accuracy is improved, and the equipment cost is reduced;
s3, starting the cold rolling mill, starting the second coiling machine 4, the cold rolling mechanism 7 and the third power device 27, and driving the strip blank 6 and the strip 3 to be rolled to move by the rotation of the second coiling machine 4;
s4, carrying out double-sided dust removal on the strip to be rolled 3 through the dust removal mechanism 9; the surface cleanliness of the strip 3 to be rolled is improved, and the subsequent processing is facilitated;
s5, carrying out double-sided oil removal on the strip to be rolled 3 through the oil wiping mechanism 10; the surface dryness of the strip 3 to be rolled is improved, so that the subsequent processing is facilitated;
s6, cold rolling and forming the strip 3 to be rolled by the cold rolling mechanism 7; the multiple groups of cold rolling units can effectively improve the cold rolling effect of the strip to be rolled 3;
s7, when the first photoelectric sensor 25 detects the induction plate 19, the first electric telescopic rod 18 and the second electric telescopic rod 23 are started to extend simultaneously, the pressing plate 17 drives the cold-rolled steel strip to be pressed into the strip-shaped groove 13, the first cutter 24 is inserted into the first cutting groove 14 to cut off the cold-rolled steel strip, and then the second electric telescopic rod 23 contracts to return to the initial position; cutting off a small amount of cold-rolled steel strip to ensure that the steel strip is finished after being wound on the first coiling machine 11;
s8, starting the second power device 12 to drive the first coiling machine 11 to rotate, and winding the cold-rolled steel strip on the first coiling machine 11 by the first coiling machine 11;
s9, when the second photoelectric sensor 35 detects the induction plate 19, the third electric telescopic rod 30 extends, the second cutter 32 is inserted into the second cutting groove 34 to cut the material behind the induction plate 19, and the cut material falls into the waste collection box 36; the material behind the sensing plate 19 is cut out for the next normal use of the sensing plate 19.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. A cold rolling mill for steel strips is characterized by comprising an uncoiler (1), a second coiling machine (4), a cold rolling mechanism (7), a first coiling machine (11), a first supporting plate (15), a pressing plate (17), a third supporting plate (20), a fourth supporting plate (21), a fifth supporting plate (22), a first cutter (24), a guide roll (26), a leveling plate (28) and a sixth supporting plate (29);
a steel belt (3) to be rolled is wound on the uncoiler (1), and a first power device (2) for driving the uncoiler (1) to rotate is arranged on the cold rolling mill; the second coiling machine (4) is parallel to the uncoiler (1), a strip blank (6) is wound on the second coiling machine (4), the strip blank (6) is connected with a steel strip (3) to be rolled through a welding seam (37), the thickness of the strip blank (6) is smaller than that of the steel strip after cold rolling, and a fourth power device (5) for driving the second coiling machine (4) to rotate is arranged on the cold rolling machine; the cold rolling mechanism (7) is positioned between the uncoiler (1) and the second coiler (4), the steel strip (3) to be rolled penetrates through the cold rolling mechanism (7), the welding mechanism (8) is arranged below the steel strip (3) to be rolled, and the welding mechanism (8) is positioned between the uncoiler (1) and the cold rolling mechanism (7); the first coiling machine (11) is positioned below a steel strip (3) to be rolled and is in contact with the steel strip (3) to be rolled, the first coiling machine (11) is positioned between the cold rolling mechanism (7) and the second coiling machine (4), a strip-shaped groove (13) is formed in the outer peripheral wall of the first coiling machine (11), the strip-shaped groove (13) is perpendicular to the moving direction of the steel strip (3) to be rolled, a first cutting groove (14) is formed in the bottom of the strip-shaped groove (13), and a second power device (12) for driving the first coiling machine (11) to rotate is arranged on the cold rolling machine; two groups of first supporting plates (15) are respectively and horizontally arranged on two end faces of the first winding machine (11), and two groups of first supporting plates (15) are respectively provided with vertical second supporting plates (16); the pressing plates (17) are horizontally and slidably arranged on the two groups of second supporting plates (16), the sliding direction is the up-down direction, the pressing plates (17) are vertical to the moving direction of the strip (3) to be rolled, the pressing plates (17) are positioned right above the strip-shaped grooves (13), the width of the pressing plates (17) is smaller than that of the strip-shaped grooves (13), the first cutting grooves (14) are positioned in front of the pressing plates (17) in the state that the pressing plates (17) are pressed into the strip-shaped grooves (13), and first electric telescopic rods (18) driving the pressing plates (17) to move up and down are arranged on the first supporting plates (15); the third support plates (20) are arranged in two groups which are parallel to each other, and the two groups of the third support plates (20) are positioned at two sides of the first coiling machine (11) and are symmetrical relative to the steel strip (3) to be rolled; the fourth supporting plates (21) are arranged on the two groups of third supporting plates (20) in a sliding mode, the sliding direction is the up-down direction, and the fourth supporting plates (21) are located above the first reeling machine (11); the fifth supporting plate (22) is horizontally arranged at the tops of the two groups of third supporting plates (20), the fifth supporting plate (22) is parallel to the fourth supporting plate (21) and is positioned above the fourth supporting plate (21), and a second electric telescopic rod (23) for driving the fourth supporting plate (21) to move up and down is arranged on the fifth supporting plate (22); the first cutter (24) is arranged at the bottom of the fourth supporting plate (21), and the first cutter (24) is positioned right above the first cutting groove (14); a horizontal induction plate (19) is arranged on one side of the strip blank (6) in the width direction, and a first photoelectric sensor (25) for detecting the position of the induction plate (19) is arranged on the fifth supporting plate (22);
the two groups of guide rollers (26) are arranged, the two groups of guide rollers (26) are respectively positioned above and below the strip blank (6), the guide rollers (26) are positioned between the first coiling machine (11) and the second coiling machine (4), and the cold rolling machine is provided with a third power device (27) for driving the guide rollers (26) to rotate; two groups of leveling plates (28) are arranged, the two groups of leveling plates (28) are respectively positioned above and below the strip blank (6), the two groups of leveling plates (28) are both contacted with the strip blank (6), and the leveling plates (28) are positioned between the guide roll (26) and the second coiling machine (4); the two groups of sixth supporting plates (29) are respectively horizontally arranged on the end surfaces, facing the guide roll (26), of the two groups of leveling plates (28), the bottom of the sixth supporting plate (29) positioned above is provided with a second photoelectric sensor (35) for detecting the position of the induction plate (19), and the two groups of sixth supporting plates (29) are provided with cutting assemblies for cutting the belt blank (6);
the cutting assembly comprises a seventh supporting plate (31) and a second cutter (32); a vertical third electric telescopic rod (30) is arranged on the sixth supporting plate (29) positioned below, a vertical eighth supporting plate (33) is arranged at the bottom of the sixth supporting plate (29) positioned above, a second cutting groove (34) is formed in the bottom of the eighth supporting plate (33), and the second cutting groove (34) is perpendicular to the moving direction of the belt blank (6); the seventh supporting plate (31) is horizontally arranged at the telescopic end of the third electric telescopic rod (30), and the seventh supporting plate (31) is positioned below the belt blank (6); the second cutter (32) is arranged on the seventh supporting plate (31), the second cutter (32) is vertical to the moving direction of the belt blank (6), and the second cutter (32) is positioned right below the second cutting groove (34);
the cold rolling mill is further provided with a control system, the control system is in control connection with the first power device (2), the second power device (12), the fourth power device (5), the cold rolling mechanism (7), the first electric telescopic rod (18), the second electric telescopic rod (23), the third electric telescopic rod (30) and the cutting assembly, and the control system is in signal transmission connection with the first photoelectric sensor (25) and the second photoelectric sensor (35).
2. A cold-rolling mill for steel strip according to claim 1, characterized in that a plurality of groups of four-roll cold-rolling mill units are provided in the cold-rolling means (7), the distances between the working rolls of the plurality of groups of four-roll cold-rolling mill units being smaller and smaller in the advancing direction of the steel strip (3) to be rolled.
3. The steel strip cold rolling mill according to claim 1, characterized in that the cold rolling mill is provided with two sets of dust removing mechanisms (9) for cleaning the surface of the steel strip (3) to be rolled, the two sets of dust removing mechanisms (9) are respectively positioned above and below the steel strip (3) to be rolled, the two sets of dust removing mechanisms (9) are positioned between the welding mechanism (8) and the cold rolling mechanism (7), and the control system is in control connection with the dust removing mechanisms (9).
4. The steel strip cold rolling mill according to claim 1, characterized in that the cold rolling mill is provided with two groups of oil wiping mechanisms (10) for removing oil from the surface of the steel strip (3) to be rolled, the two groups of oil wiping mechanisms (10) are respectively positioned above and below the steel strip (3) to be rolled, the two groups of oil wiping mechanisms (10) are positioned between the cold rolling mechanism (7) and the welding mechanism (8), and the control system is in control connection with the oil wiping mechanisms (10).
5. The cold-rolling mill of steel strip according to claim 1, characterized in that a scrap collecting box (36) is provided below the sixth support plate (29), the scrap collecting box (36) being open at the top.
6. The cold rolling mill for steel strip according to any one of claims 1 to 5, providing a cold rolling process for steel strip, characterized by comprising the steps of:
s1, pulling the strip blank (6) to sequentially pass through the leveling plate (28), the guide roll (26), the first coiling machine (11), the cold rolling mechanism (7), the oil wiping mechanism (10) and the dust removing mechanism (9);
s2, connecting the steel strip (3) to be rolled and the strip blank (6) through a welding seam (37) through a welding mechanism (8);
s3, starting the cold rolling mill, starting the second coiling machine (4), the cold rolling mechanism (7) and the third power device (27), and driving the strip blank (6) and the steel strip (3) to be rolled to move by the rotation of the second coiling machine (4);
s4, carrying out double-sided dust removal on the steel strip (3) to be rolled through a dust removal mechanism (9);
s5, carrying out double-sided oil removal on the steel strip (3) to be rolled through an oil wiping mechanism (10);
s6, carrying out cold rolling forming on the steel strip (3) to be rolled through a cold rolling mechanism (7);
s7, when the first photoelectric sensor (25) detects the induction plate (19), the first electric telescopic rod (18) and the second electric telescopic rod (23) are started to extend simultaneously, the pressing plate (17) drives the cold-rolled steel strip to be pressed into the strip-shaped groove (13), the first cutter (24) is inserted into the first cutting groove (14) to cut off the cold-rolled steel strip, and then the second electric telescopic rod (23) contracts to return to the initial position;
s8, starting a second power device (12) to drive a first coiling machine (11) to rotate, and winding the cold-rolled steel strip on the first coiling machine (11) by the first coiling machine (11);
s9, when the second photoelectric sensor (35) detects the induction plate (19), the third electric telescopic rod (30) extends, the second cutter (32) is inserted into the second cutting groove (34) to cut the material behind the induction plate (19), and the cut material falls into the waste collection box (36).
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| GB2318317A (en) * | 1996-10-21 | 1998-04-22 | Draftex Ind Ltd | Joining strip material |
| CN101658990A (en) * | 2009-09-15 | 2010-03-03 | 武汉钢铁(集团)公司 | Steel welding seam edge-excavating device and control method |
| CN201950463U (en) * | 2010-12-16 | 2011-08-31 | 湖南湘投金天钛金属有限公司 | Metal strip coil repairing equipment |
| CN102796943B (en) * | 2012-08-31 | 2014-07-23 | 宝山钢铁股份有限公司 | Thin strip steel for thin-wall oil drum and manufacturing method of thin strip steel |
| CN103143587B (en) * | 2013-03-18 | 2015-09-16 | 济钢集团国际工程技术有限公司 | The welding band-leading being applicable to compact cold strip mill improves the device and method of lumber recovery |
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Denomination of invention: A Cold Rolling Mill and Cold Rolling Process for Steel Strip Effective date of registration: 20231106 Granted publication date: 20220624 Pledgee: China Co. truction Bank Corp Jieyang branch Pledgor: GUANGDONG BAOSHENGXING INDUSTRIAL Co.,Ltd. Registration number: Y2023980064257 |
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Denomination of invention: A Cold Rolling Mill and Cold Rolling Process for Steel Strip Granted publication date: 20220624 Pledgee: China Co. truction Bank Corp Jieyang branch Pledgor: GUANGDONG BAOSHENGXING INDUSTRIAL Co.,Ltd. Registration number: Y2024980024874 |
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