CN113522987B - Cold rolling mill with convexity control device and control method - Google Patents
Cold rolling mill with convexity control device and control method Download PDFInfo
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- CN113522987B CN113522987B CN202110710462.2A CN202110710462A CN113522987B CN 113522987 B CN113522987 B CN 113522987B CN 202110710462 A CN202110710462 A CN 202110710462A CN 113522987 B CN113522987 B CN 113522987B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/06—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring tension or compression
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- 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
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- 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
- B21B45/0287—Cleaning devices removing solid particles, e.g. dust, rust
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by spraying
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a cold rolling mill with a convexity control device, which comprises: the two adjacent racks are symmetrically arranged, and each rack is of a frame structure; the transverse moving devices are symmetrically arranged on the rack; the middle roller device is connected with two adjacent transverse moving devices through a convexity control device; the two ends of the working roll device are connected with the frame through the convexity control device, and the two adjacent working roll devices are symmetrically arranged between the two intermediate roll devices. The contact area between the intermediate roll and the roll body of the working roll is adjusted by the transverse moving device according to the width of the rolled piece, so that the two working roll devices are prevented from having a harmful contact area exceeding the width of the rolled piece; meanwhile, the convexity of the intermediate roll device and the convexity of the working roll device are controlled, and the phenomenon that the section of a rolling zone is in a shape of a middle convex plate and the edge part is thinned is avoided.
Description
Technical Field
The invention relates to the technical field of rolling mills, in particular to a cold rolling mill with a convexity control device and a control method.
Background
The market competition pressure is increasingly intense, and production enterprises have higher requirements on the surface quality and thickness of rolled strips, the plate shape precision and the product range, but are influenced by the rolling mill, so that most of the properties predicted in advance cannot be realized. When the existing rolling mill rolls, the convexity of the roll surface is changed, so that the section of a rolling zone is in a shape of a plate, such as a convex shape, an edge part is thinned and the like. Therefore, there is a need for a cold rolling mill with crown control and control method that at least partially solves the problems of the prior art.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a cold rolling mill having a crown control device, comprising:
the two adjacent racks are symmetrically arranged;
the transverse moving devices are symmetrically arranged on the rack;
the middle roller device is connected with two adjacent transverse moving devices through a convexity control device;
the two ends of the working roll device are connected with the frame through the convexity control device, and the two adjacent working roll devices are symmetrically arranged between the two intermediate roll devices.
Preferably, the traverse device includes:
the transverse moving groove is arranged on the rack;
the transverse moving sliding blocks are connected in the transverse moving grooves in a sliding mode;
the connecting rod is arranged between two adjacent transverse sliding blocks;
one end of the first hydraulic rod is arranged on the rack, and the other end of the first hydraulic rod is connected with the transverse sliding block.
Preferably, the intermediate roller device includes:
the middle roller, the both ends of middle roller all with middle roller bearing frame rotates and is connected, middle roller bearing frame is T shape, the both ends of middle roller bearing frame all with convexity controlling means connects.
Preferably, the work roll apparatus includes:
the two ends of the working roll are rotatably connected with the working roll bearing seat, the working roll bearing seat is T-shaped, and the two ends of the working roll bearing seat are connected with the convexity control device.
Preferably, the crown control device includes:
one end of the second hydraulic rod is connected with the transverse sliding block, and the other end of the second hydraulic rod is connected with the middle roller bearing seat through a first connecting piece;
the rack is provided with two working blocks which are arranged in parallel, and the working blocks are positioned between two adjacent transverse moving devices;
and the upper end and the lower end of the working block are respectively provided with a third hydraulic rod, and one end of each third hydraulic rod is connected with the working block through a second connecting piece.
Preferably, the bottom end of the frame is provided with a base.
Preferably, still be equipped with cleaning device in the frame, cleaning device includes:
the casing, the casing is located on the framework inner wall of frame, be equipped with in the casing and roll the area chamber, one side in rolling the area chamber is equipped with the biax motor, the upper and lower bilateral symmetry in rolling the area chamber is equipped with liquid injection device, liquid injection device includes:
the transmission cavity is arranged in the shell and is arranged on one side of the double-shaft motor;
the liquid separation cavity is arranged in the shell and is positioned on one side of the rolling belt cavity;
the liquid storage cavity is arranged in the shell and is positioned on one side, far away from the rolling belt cavity, of the liquid separation cavity;
the rotating cavity is arranged in the shell and is positioned on one side of the transmission cavity;
the friction groove is arranged on the inner wall of the rolling belt cavity;
one end of the first rotating rod is connected with the double-shaft motor, and the other end of the first rotating rod extends into the transmission cavity and is connected with the first bevel gear;
the liquid spraying pipe is arranged between the liquid storage cavity and the liquid separating cavity;
one end of the second rotating rod extends into the transmission cavity to be connected with a second bevel gear, the second bevel gear is meshed with the first bevel gear, and the other end of the second rotating rod is rotatably connected with the inner wall of the liquid spraying pipe;
the water control gear is sleeved on the second rotating rod and is positioned in the liquid spraying pipe;
a plurality of liquid separating holes are formed between the rolling belt cavity and the liquid separating cavity, and threaded plugs are arranged in the liquid separating holes;
one end of the third rotating rod extends into the transmission cavity to be connected with a third bevel gear, the third bevel gear is meshed with the first bevel gear, and the other end of the third rotating rod extends into the transmission cavity to be connected with a fourth bevel gear;
one end of the fourth rotating rod extends into the rotating cavity and is connected with a fifth bevel gear, the fifth bevel gear is meshed with the fourth bevel gear, and the other end of the fourth rotating rod is rotatably connected with the inner wall of the friction groove;
the cleaning wheel is sleeved on the fourth rotating rod and is positioned in the friction groove;
the sliding plate is connected in the liquid storage cavity in a sliding mode, and a spring is arranged between the sliding plate and the inner wall of the liquid storage cavity.
Preferably, still be equipped with detection device in the casing, detection device is located the friction groove is kept away from divide one side of sap cavity, detection device includes:
the worm gear cavity is arranged in the shell and is positioned on one side of the belt rolling cavity;
the transmission cavity is arranged in the shell, and the upper side and the lower side of the worm wheel cavity are both provided with the transmission cavity;
one end of the sixth rotating rod is connected with the handle, and the other end of the sixth rotating rod extends into the worm wheel cavity to be connected with the worm wheel;
both ends of the worm extend into the transmission cavity to be connected with a sixth bevel gear, the worm penetrates through the worm gear cavity, and the worm is meshed with the worm gear;
one end of the seventh rotating rod is rotatably connected with the inner wall of the rolling belt cavity, the other end of the seventh rotating rod extends into the transmission cavity to be connected with a seventh bevel gear, and the seventh bevel gear is meshed with the sixth bevel gear;
the first extrusion seat is in sliding connection with the inner wall of the rolling belt cavity, the first extrusion seat positioned in the middle is in sliding connection with the seventh rotating rod, and the first extrusion seats positioned on two sides are connected with the seventh rotating rod through opposite threads;
the first extrusion groove is formed in the first extrusion seat;
one end of the first extrusion block is connected in the first extrusion groove in a sliding mode, and the other end of the first extrusion block is provided with a first small ball in a sliding mode;
the first extrusion spring is arranged between the first extrusion block and the first extrusion groove;
the second extrusion seat is in sliding connection with the inner wall of the rolling belt cavity, the second extrusion seat positioned in the middle is in sliding connection with the seventh rotating rod, and the second extrusion seats positioned on two sides are connected with the seventh rotating rod through opposite threads;
the second extrusion groove is formed in the second extrusion seat;
one end of the second extrusion block is slidably connected into the second extrusion groove, and the other end of the second extrusion block is slidably provided with a second small ball;
the pressure sensor is arranged in the second extrusion groove;
and the second extrusion spring is arranged between the second extrusion block and the pressure sensor.
A crown control method of a cold rolling mill comprises the following steps:
step 1: the transverse moving device is controlled to drive the upper and lower middle roller devices to move to a set position in opposite directions so as to meet the requirements of rolling strips with different widths;
step 2: the convexity control device is used for controlling the middle roller to bend, so that the convexity of the middle roller is changed;
and step 3: the convexity control device is used for controlling the working roll to generate positive and negative roll bending, so that the convexity of the working roll is changed.
Compared with the prior art, the invention at least comprises the following beneficial effects:
according to the cold rolling mill with the convexity control device and the control method, the contact area of the working roll devices is adjusted through the transverse moving device according to the width of a rolled piece, so that a harmful contact area exceeding the width of the rolled piece is avoided for the two working roll devices; meanwhile, the convexity of the intermediate roll device and the convexity of the working roll device are controlled, and the phenomenon that the section of a rolling zone is in a shape of a middle convex plate and the edge part is thinned is avoided.
While the invention has been described in terms of a cold rolling mill having crown control and method of control, other advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a first schematic structural view of a cold rolling mill having a crown control apparatus according to the present invention;
FIG. 2 is a schematic structural view of a cold rolling mill having a crown control device according to a second aspect of the present invention;
FIG. 3 is a schematic side view of a cold rolling mill having crown control according to the present invention;
FIG. 4 is a schematic view of the positions of the intermediate and work rolls of a cold rolling mill having a crown control apparatus according to the present invention;
FIG. 5 is a schematic view of a cleaning apparatus of a cold rolling mill having a crown control apparatus according to the present invention;
FIG. 6 is a schematic view of a portion of the back of a cleaning apparatus of a cold rolling mill having crown control according to the present invention;
fig. 7 is a schematic structural diagram of a detection device of a cold rolling mill with a crown control device according to the present invention.
Description of reference numerals: 1. a frame; 2. a traversing device; 3. an intermediate roller device; 4. a work roll device; 5. a crown control device; 6. a transverse moving groove; 7. sliding blocks are transversely moved; 8. a first connecting member; 9. a second hydraulic rod; 10. a second connecting member; 11. a third hydraulic lever; 12. a first hydraulic lever; 15. a connecting rod; 16. a middle roll bearing seat; 17. an intermediate roll; 18. a work roll bearing support; 19. a work roll; 20. a working block; 21. a housing; 22. a liquid storage cavity; 23. a liquid separation cavity; 24. a belt rolling cavity; 25. a transmission cavity; 26. a rotation chamber; 27. a friction chamber; 28. a double-shaft motor; 29. a first rotating lever; 30. a first bevel gear; 31. a second bevel gear; 32. a second rotating lever; 33. a liquid spraying pipe; 34. a water control gear; 35. a third bevel gear; 36. a third rotating rod; 37. a sliding plate; 38. a spring; 40. a fourth bevel gear; 41. a liquid separation hole; 42. a threaded plug; 43. a fifth bevel gear; 44. a fourth rotating rod; 45. cleaning the wheel; 46. a handle; 47. a worm; 48. a worm gear cavity; 49. a transmission cavity; 50. a sixth bevel gear; 51. a seventh bevel gear; 52. a seventh rotating lever; 53. a first extrusion seat; 54. a first extrusion groove; 55. a first extrusion block; 56. a first pellet; 57. a first pressing spring; 58. a second extrusion seat; 59. a second extrusion groove; 60. a second extrusion block; 61. a pressure sensor; 62. a second pressing spring; 63. a second pellet; 64. a sixth rotating rod; 65. a worm gear.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 7, the present invention provides a cold rolling mill having a crown control device, comprising:
the device comprises racks 1, wherein two adjacent racks 1 are symmetrically arranged;
the transverse moving devices 2 are symmetrically arranged on the rack 1;
the middle roller device 3 is connected with two adjacent transverse moving devices 2 through a convexity control device 5;
the two ends of the working roll device 4 are connected with the frame 1 through the convexity control device 5, and the two adjacent working roll devices 4 are symmetrically arranged between the two adjacent intermediate roll devices 3.
The working principle of the technical scheme is as follows: in actual use, the contact area between the intermediate roll device 3 and the working roll device 4 is adjusted by the traverse device 2 to determine the rolling area between the two working roll devices 4, and then the convexity of the intermediate roll device 3 and the working roll devices 4 is adjusted by the adjusting convexity control device 5.
The beneficial effects of the above technical scheme are that: through the design of the structure, the contact area of the working roll devices 4 is adjusted by the transverse moving device 2 according to the width of a rolled piece, so that a harmful contact area exceeding the width of the rolled piece is avoided for the two working roll devices 4, and the harmful contact area is a contact area where no rolling strip passes between the working roll devices 4 in a rolling area; meanwhile, the convexity of the intermediate roll device 3 and the convexity of the working roll device 4 are controlled, so that the phenomenon that the section of a rolling strip is in a shape of a middle convex and the edge part is thinned is avoided.
In one embodiment, the traversing device 2 comprises:
the transverse moving groove 6 is arranged on the rack 1;
the transverse moving sliding blocks 7 are connected in the transverse moving grooves 6 in a sliding mode, and the two transverse moving sliding blocks 7 are connected in the transverse moving grooves 6 in a sliding mode;
the connecting rod 15 is arranged between two adjacent transverse sliding blocks 7;
one end of the first hydraulic rod 12 is arranged on the rack 1, and the other end of the first hydraulic rod 12 is connected with the transverse sliding block 7.
The working principle of the technical scheme is as follows: in the actual use process, when the transverse moving device 2 is controlled to move the intermediate roll device 3, the first hydraulic rod 12 is started, the first hydraulic rod 12 drives one transverse moving sliding block 7 to move, one transverse moving sliding block 7 drives the other transverse moving sliding block 7 to slide in the same direction through the connecting rod 15, and the transverse moving sliding blocks 7 drive the intermediate roll device 3 to move, so that the contact area between the intermediate roll device 3 and the working roll device 4 is adjusted according to the width of a rolled piece.
The beneficial effects of the above technical scheme are that: through the design of the structure, the contact area of the intermediate roll device 3 and the working roll devices 4 is controlled by the transverse moving device 2 according to the width of a rolled piece, so that the two working roll devices 4 are prevented from having a harmful contact area exceeding the width of the rolled piece.
In one embodiment, the intermediate roller device 3 includes:
the middle roll 17, the both ends of middle roll 17 all with middle roll bearing frame 16 rotates and is connected, middle roll bearing frame 16 is T shape, the both ends of middle roll bearing frame 16 all with convexity controlling means 5 is connected.
The working principle of the technical scheme is as follows: in the actual use process, the traversing device 2 drives the two middle roller bearing blocks 16 to move, and the middle roller bearing blocks 16 drive the middle rollers 17 to move.
The beneficial effects of the above technical scheme are that: with the above-described configuration, the contact area of the intermediate roll 17 with the work roll apparatus 4 is determined by the movement of the intermediate roll 17, and then the intermediate roll 17 applies a rolling force to the contact area with the work roll apparatus 4.
In one embodiment, the work roll apparatus 4 includes:
the working roll 19, the both ends of working roll 19 all with the working roll bearing frame 18 rotates to be connected, the working roll bearing frame 18 is T shape, the both ends of working roll bearing frame 18 all with convexity controlling means 5 is connected.
The working principle of the technical scheme is as follows: in actual use, the work roll units are fixed to the stand 1 by the crown control device 5 via the work roll chocks 18, and rolling of the rolled stock is started after the intermediate roll unit 3 determines the contact area and applies a rolling force.
The beneficial effects of the above technical scheme are that: through the design of the structure, the convexity control device 5 controls the convexity of the working roll 19 through the working roll bearing seat 18, and then the working roll 19 rolls the rolled piece.
In one embodiment, the crown control device 5 comprises:
one end of the second hydraulic rod 9 is connected with the transverse sliding block 7, and the other end of the second hydraulic rod 9 is connected with the middle roller bearing block 16 through a first connecting piece 8;
the frame 1 is provided with two working blocks 20, the two working blocks 20 are arranged in parallel, and the working blocks 20 are positioned between two adjacent transverse moving devices;
and the upper end and the lower end of the working block 20 are both provided with a third hydraulic rod 11, and one end of the third hydraulic rod 11 is connected with the working block 20 through a second connecting piece 10.
The working principle of the technical scheme is as follows: in the actual use process, the second hydraulic rod 9 is started, so that the first second hydraulic rod 9 extends, the second hydraulic rod 9 extends passively, the middle roller 17 of the middle roller device 3 bends positively, then the second hydraulic rod 9 is controlled to contract, the first second hydraulic rod 9 contracts passively, the middle roller 17 of the middle roller device 3 bends negatively, when the middle roller 17 bends positively and negatively continuously, the convexity of the middle roller changes, and the convexity control of the middle roller 17 is achieved; meanwhile, the third hydraulic rod 11 is started, so that the third hydraulic rod 11 drives the working roll 19 to generate positive and negative roll bending through the second connecting piece 10 and the working roll bearing seat 18, the convexity of the working roll 19 is changed, and the convexity of the working roll 19 is controlled.
The beneficial effects of the above technical scheme are that: through the design of the structure, the convexity of the intermediate roll 17 and the convexity of the working roll 19 are controlled by the convexity control device 5, so that the strip rolled in the rolling area is prevented from having a shape with a convex cross section and a thinned edge.
In one embodiment, a lubricating device is further disposed on the machine frame 1, and the lubricating device includes:
the casing 21, casing 21 is located on the framework inner wall of frame 1, be equipped with the rolling band chamber 24 in the casing 21, one side of rolling band chamber 24 is equipped with double-shaft motor 28, the upper and lower bilateral symmetry in rolling band chamber 24 is equipped with liquid spray device, liquid spray device includes:
the transmission cavity 25 is arranged in the shell 21, and the transmission cavity 25 is arranged on one side of the double-shaft motor 28;
the liquid dividing cavity 23 is arranged in the shell 21, and the liquid dividing cavity 23 is positioned on one side of the rolling strip cavity 24;
the liquid storage cavity 22 is arranged in the shell 21, and the liquid storage cavity 22 is positioned on one side of the liquid distribution cavity 23 far away from the rolling belt cavity 24;
a rotating cavity 26, wherein the rotating cavity 26 is arranged in the housing 21, and the rotating cavity 26 is positioned at one side of the transmission cavity 25;
the friction groove 27 is arranged on the inner wall of the rolling belt cavity 24;
one end of the first rotating rod 29 is connected with the double-shaft motor 28, and the other end of the first rotating rod 29 extends into the transmission cavity 25 and is connected with a first bevel gear 30;
the liquid spraying pipe 33 is arranged between the liquid storage cavity 22 and the liquid dividing cavity 23;
one end of the second rotating rod 32 extends into the transmission cavity 25 to be connected with a second bevel gear 31, the second bevel gear 31 is meshed with the first bevel gear 30, and the other end of the second rotating rod 32 is rotatably connected with the inner wall of the liquid spraying pipe 33;
the water control gear 34 is sleeved on the second rotating rod 32, and the water control gear 34 is positioned in the liquid spraying pipe 33;
a plurality of liquid dividing holes 41 are formed between the rolling strip cavity 24 and the liquid dividing cavity 23, and threaded plugs 42 are arranged in the liquid dividing holes 41;
one end of the third rotating rod 36 extends into the transmission cavity 25 to be connected with a third bevel gear 35, the third bevel gear 35 is meshed with the first bevel gear 30, and the other end of the third rotating rod 36 extends into the rotation cavity 26 to be connected with a fourth bevel gear 40;
one end of the fourth rotating rod 44 extends into the rotating cavity 26 and is connected with a fifth bevel gear 43, the fifth bevel gear 43 is meshed with the fourth bevel gear 40, and the other end of the fourth rotating rod 44 is rotatably connected with the inner wall of the friction groove 27;
the cleaning wheel 45 is sleeved on the fourth rotating rod 44, and the cleaning wheel 45 is positioned in the friction groove 27;
and the sliding plate 37 is connected in the liquid storage cavity 22 in a sliding mode, and a spring 38 is arranged between the sliding plate 37 and the inner wall of the liquid storage cavity 22.
The working principle of the technical scheme is as follows: in the practical use process, before the cold rolling mill starts to work, the threaded plugs 42 are added into the liquid separating holes 41 according to the width of the rolled strip, the cold rolling mill is started after the addition is finished, when the cold rolling mill starts to work, the rolled strip enters the rolled strip cavity 24 after being rolled, the double-shaft motor 28 is started, the double-shaft motor 28 drives the first bevel gear 30 to rotate through the first rotating rod 29, the first bevel gear 30 drives the second rotating rod 32 to rotate through the second bevel gear 31, the second rotating rod 32 drives the water control gear 34 to rotate, and the water control gear 34 rotates, so that the pickling solution stored in the liquid storage cavity 22 enters the liquid separating cavity 23 through the liquid spraying pipe 33 and is sprayed onto the rolled strip from the liquid separating holes 41 of the liquid separating cavity 23, which are not added with the threaded plugs 42; meanwhile, when the first bevel gear 30 rotates, the first bevel gear 30 further drives the third rotating rod 36 to rotate through the third bevel gear 35, the third rotating rod 36 drives the fifth bevel gear 43 to rotate through the fourth bevel gear 40, and the fifth bevel gear 43 drives the cleaning wheel 45 to clean the surface of the rolled strip through the fourth rotating rod 44.
The beneficial effects of the above technical scheme are that: through the design of the structure, when the rolled strip passes through the cleaning device, the rolled strip is sprayed with pickling solution, the pickling solution can wash away the fragments generated by rolling, and meanwhile, the subsequent chip removing effect can be increased; then, the surface of the rolled strip is polished by a cleaning wheel 45, and the fragments which are not washed away by the pickling solution are brushed away, so that the rolled strip is cleaned, and the subsequent cleaning work is reduced; the screw thread plug is added according to the width of the rolled strip, so that the waste of pickling solution can be avoided.
In one embodiment, a detection device is further disposed in the housing 21, and the detection device is located on a side of the friction groove 27 away from the liquid separation chamber 23, and the detection device includes:
a worm gear cavity 48, wherein the worm gear cavity 48 is arranged in the shell 21, and the worm gear cavity 48 is positioned on one side of the rolling belt cavity 24;
the transmission cavity 49 is arranged, a plurality of transmission cavities 49 are arranged in the shell 21, and the transmission cavities 49 are arranged on the upper side and the lower side of the worm wheel cavity 49;
one end of the sixth rotating rod 64 is connected with the handle 46, and the other end of the sixth rotating rod 64 extends into the worm wheel cavity 48 and is connected with the worm wheel 65;
the two ends of the worm 47 extend into the transmission cavity 49 to be connected with a sixth bevel gear 50, the worm 47 penetrates through the worm wheel cavity 48, and the worm 47 is meshed with the worm wheel 65;
one end of the seventh rotating rod 52 is rotatably connected with the inner wall of the rolling belt cavity 24, the other end of the seventh rotating rod 52 extends into the transmission cavity 49 to be connected with a seventh bevel gear 51, and the seventh bevel gear 51 is meshed with the sixth bevel gear 50;
the first extrusion seat 53, three first extrusion seats 53 are sleeved on the first seventh rotating rod 52, the first extrusion seat 53 is connected with the inner wall of the rolling belt cavity 24 in a sliding manner, wherein the first extrusion seat 53 positioned in the middle is connected with the seventh rotating rod 52 in a sliding manner, and the first extrusion seats 53 positioned on both sides are connected with the seventh rotating rod 52 through opposite threads;
a first extrusion groove 54, wherein the first extrusion groove 54 is arranged on the first extrusion seat 53;
one end of the first extrusion block 55 is slidably connected into the first extrusion groove 54, and the other end of the first extrusion block 55 is slidably provided with a first small ball 56;
a first pressing spring 57, the first pressing spring 57 being provided between the first pressing block 55 and the first pressing groove 54;
the second extrusion seat 58, three second extrusion seats 58 are sleeved on the second seventh rotating rod 52, the second extrusion seats 58 are slidably connected with the inner wall of the rolling belt cavity 24, wherein the second extrusion seat 58 located in the middle is slidably connected with the seventh rotating rod 52, and the second extrusion seats 58 located on both sides are connected with the seventh rotating rod 52 through opposite threads;
a second extrusion groove 59, wherein the second extrusion groove 59 is arranged on the second extrusion seat 58;
one end of the second extrusion block 60 is slidably connected into the second extrusion groove 59, and the other end of the second extrusion block 60 is slidably provided with a second small ball 63;
a pressure sensor 61, wherein the pressure sensor 61 is arranged in the second extrusion groove 59;
and a second pressing spring 62, wherein the second pressing spring 62 is arranged between the second pressing block 60 and the pressure sensor 61.
The working principle of the technical scheme is as follows: in practical use, the handle 46 is rotated, the handle 46 drives the worm wheel 65 to rotate through the sixth rotating rod 64, the worm wheel 65 drives the sixth bevel gear 50 to rotate through the worm 47, the sixth bevel gear 50 drives the seventh rotating rod 52 to rotate through the seventh bevel gear 51, the seventh rotating rod 52 rotates to enable the first squeezing seat 53 and the second squeezing seat 58 on the two sides to move towards each other or in opposite directions, so that the first squeezing seat 53 and the second squeezing seat 58 on the two sides are located on the two sides of the rolled strip, the rolled strip passes through between the first small ball 56 and the second small ball 63, when the rolled strip passes through, the rolled strip enables the first squeezing block 55 to move towards the compressing direction of the first squeezing spring 57 by squeezing the first small ball 56, and simultaneously enables the second squeezing block 60 to move towards the second squeezing spring 62 by squeezing the second small ball 63, the second squeezing spring 62 squeezes the pressure sensor 61, so as to measure a pressure value, the pressure values of the middle part and two sides of the rolled strip to the second small ball 63 are respectively measured by the three sets of the first extrusion seat 53 and the second extrusion seat 58.
The beneficial effects of the above technical scheme are that: according to the technical scheme, when the pressure value in the middle is higher than the pressure values on the two sides and is higher than the preset range, the fact that the thickness in the middle of the rolled strip is obviously higher than the thicknesses on the two sides of the rolled strip is shown by comparing the measured three pressure values, and at the moment, the detection device can give a prompt to remind a worker that the rolled strip is thin in the middle convex edge and please deal with the situation in time; when the pressure value in the middle is lower than the pressure values on the two sides and exceeds the preset range, the fact that the thickness in the middle of the rolled strip is obviously smaller than the thickness on the two sides of the rolled strip is shown, the detection device can give a prompt to remind workers of the fact that the rolled strip is thick on the concave edge, the workers can be reminded of timely processing the rolled strip, and the rolled strip rolled by the rolling mill is prevented from being uneven.
A crown control method of a cold rolling mill comprises the following steps:
step 1: the transverse moving device 2 is controlled to drive the upper and lower middle roller devices 3 to move to set positions in opposite directions so as to meet the requirements of rolling strips with different widths;
step 2: the convexity control device 5 controls the middle roller 17 to bend, and the convexity of the middle roller 17 is changed;
and step 3: the convexity control device 5 controls the work rolls 19 to generate positive and negative roll bending, thereby changing the convexity of the work rolls 19.
The working principle of the technical scheme is as follows: in the actual use process, the two intermediate roller devices 3 are driven to move by the transverse moving device 2, the contact area of the intermediate roller 17 and the working roller 19 is determined according to the width of a rolled piece, and then the convexity of the working roller 19 and the convexity of the intermediate roller 17 are controlled by the convexity control device 5.
The beneficial effects of the above technical scheme are that: through the design of the structure, the contact area of the working roll devices 4 is adjusted by the transverse moving device 2 according to the width of a rolled piece, so that the two working roll devices 4 are prevented from having a harmful contact area exceeding the width of the rolled piece; meanwhile, the convexity of the intermediate roll 17 and the working roll 19 is controlled, and the plate shape phenomena that the section of the rolling zone is convex and the edge part is thinned are avoided.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (5)
1. A cold rolling mill with crown control, comprising:
the two adjacent racks (1) are symmetrically arranged, and the racks (1) are of frame structures;
the transverse moving devices (2), two transverse moving devices (2) are symmetrically arranged on the rack (1);
the middle roller device (3) is connected with two adjacent transverse moving devices (2) through a convexity control device (5);
the two ends of each working roller device (4) are connected with the rack (1) through the convexity control device (5), and two adjacent working roller devices (4) are symmetrically arranged between two adjacent intermediate roller devices (3);
still be equipped with cleaning device on frame (1), cleaning device includes:
casing (21), casing (21) are located on the framework inner wall of frame (1), be equipped with in casing (21) rolling band chamber (24), one side in rolling band chamber (24) is equipped with double-shaft motor (28), the upper and lower bilateral symmetry in rolling band chamber (24) is equipped with liquid spray device, liquid spray device includes:
the transmission cavity (25) is arranged in the shell (21), and the transmission cavity (25) is arranged on one side of the double-shaft motor (28);
the liquid dividing cavity (23) is arranged in the shell (21), and the liquid dividing cavity (23) is positioned on one side of the rolling strip cavity (24);
the liquid storage cavity (22) is arranged in the shell (21), and the liquid storage cavity (22) is positioned on one side, away from the rolling belt cavity (24), of the liquid distribution cavity (23);
the rotating cavity (26), the rotating cavity (26) is arranged in the shell (21), and the rotating cavity (26) is positioned on one side of the transmission cavity (25);
the friction groove (27) is formed in the inner wall of the rolling belt cavity (24);
one end of the first rotating rod (29) is connected with the double-shaft motor (28), and the other end of the first rotating rod (29) extends into the transmission cavity (25) and is connected with a first bevel gear (30);
the liquid spraying pipe (33), the liquid spraying pipe (33) is arranged between the liquid storage cavity (22) and the liquid distribution cavity (23);
one end of the second rotating rod (32) extends into the transmission cavity (25) and is connected with a second bevel gear (31), the second bevel gear (31) is meshed with the first bevel gear (30), and the other end of the second rotating rod (32) is rotatably connected with the inner wall of the liquid spraying pipe (33);
the water control gear (34), the water control gear (34) is sleeved on the second rotating rod (32), and the water control gear (34) is positioned in the liquid spraying pipe (33);
a plurality of liquid dividing holes (41) are formed between the rolling strip cavity (24) and the liquid dividing cavity (23), and threaded plugs (42) are arranged in the liquid dividing holes (41);
one end of the third rotating rod (36) extends into the transmission cavity (25) and is connected with a third bevel gear (35), the third bevel gear (35) is meshed with the first bevel gear (30), and the other end of the third rotating rod (36) extends into the rotation cavity (26) and is connected with a fourth bevel gear (40);
one end of the fourth rotating rod (44) extends into the rotating cavity (26) and is connected with a fifth bevel gear (43), the fifth bevel gear (43) is meshed with the fourth bevel gear (40), and the other end of the fourth rotating rod (44) is rotatably connected with the inner wall of the friction groove (27);
the cleaning wheel (45) is sleeved on the fourth rotating rod (44), and the cleaning wheel (45) is positioned in the friction groove (27);
the sliding plate (37) is connected in the liquid storage cavity (22) in a sliding mode, and a spring (38) is arranged between the sliding plate (37) and the inner wall of the liquid storage cavity (22);
still be equipped with detection device in casing (21), detection device is located friction groove (27) are kept away from one side of branch sap cavity (23), detection device includes:
the worm wheel cavity (48), the worm wheel cavity (48) is arranged in the shell (21), and the worm wheel cavity (48) is positioned on one side of the rolling belt cavity (24);
the worm gear transmission mechanism comprises a transmission cavity (49), wherein a plurality of transmission cavities (49) are arranged in the shell (21), and the transmission cavities (49) are arranged on the upper side and the lower side of the worm gear cavity (49);
one end of the sixth rotating rod (64) is connected with the handle (46), and the other end of the sixth rotating rod (64) extends into the worm wheel cavity (48) and is connected with the worm wheel (65);
both ends of the worm (47) extend into the transmission cavity (49) to be connected with a sixth bevel gear (50), the worm (47) penetrates through the worm gear cavity (48), and the worm (47) is meshed with the worm gear (65);
one end of the seventh rotating rod (52) is rotatably connected with the inner wall of the rolling strip cavity (24), the other end of the seventh rotating rod (52) extends into the transmission cavity (49) to be connected with a seventh bevel gear (51), and the seventh bevel gear (51) is meshed with the sixth bevel gear (50);
the first extrusion seat (53), three first extrusion seats (53) are sleeved on the first seventh rotating rod (52), the first extrusion seat (53) is in sliding connection with the inner wall of the rolling strip cavity (24), the first extrusion seat (53) in the middle is in sliding connection with the seventh rotating rod (52), and the first extrusion seats (53) on two sides are in opposite threaded connection with the seventh rotating rod (52);
the first extrusion groove (54), the first extrusion groove (54) is set on the first extrusion seat (53);
one end of the first extrusion block (55) is connected in the first extrusion groove (54) in a sliding mode, and a first small ball (56) is arranged at the other end of the first extrusion block (55) in a sliding mode;
a first pressing spring (57), the first pressing spring (57) being provided between the first pressing block (55) and the first pressing groove (54);
the second extrusion seat (58) is sleeved on the second seventh rotating rod (52), the second extrusion seat (58) is in sliding connection with the inner wall of the rolling strip cavity (24), the second extrusion seat (58) in the middle is in sliding connection with the seventh rotating rod (52), and the second extrusion seats (58) on the two sides are in opposite threaded connection with the seventh rotating rod (52);
the second extrusion groove (59), the said second extrusion groove (59) locates on the said second extrusion seat (58);
one end of the second extrusion block (60) is connected in the second extrusion groove (59) in a sliding mode, and a second small ball (63) is arranged at the other end of the second extrusion block (60) in a sliding mode;
a pressure sensor (61), wherein the pressure sensor (61) is arranged in the second extrusion groove (59);
a second pressing spring (62), the second pressing spring (62) being provided between the second pressing block (60) and the pressure sensor (61).
2. A cold-rolling mill with crown control according to claim 1,
the traverse device (2) comprises:
the transverse moving groove (6), the transverse moving groove (6) is arranged on the rack (1);
the transverse moving sliding blocks (7) are connected with the transverse moving grooves (6) in a sliding mode, and the transverse moving grooves (6) are connected with the two transverse moving sliding blocks (7) in a sliding mode;
the connecting rod (15) is arranged between every two adjacent transverse sliding blocks (7);
one end of the first hydraulic rod (12) is arranged on the rack (1), and the other end of the first hydraulic rod (12) is connected with the transverse sliding block (7).
3. A cold-rolling mill with crown control according to claim 1,
the intermediate roller device (3) comprises:
middle roller (17), the both ends of middle roller (17) all rotate with middle roller bearing frame (16) and are connected, middle roller bearing frame (16) are T shape, the both ends of middle roller bearing frame (16) all with convexity controlling means (5) are connected.
4. A cold-rolling mill with crown control according to claim 1,
the work roll device (4) comprises:
the working roll (19), the both ends of working roll (19) all with working roll bearing frame (18) rotate to be connected, working roll bearing frame (18) are T shape, the both ends of working roll bearing frame (18) all with convexity controlling means (5) are connected.
5. A cold-rolling mill with crown control according to claim 2,
the crown control device (5) comprises:
one end of the second hydraulic rod (9) is connected with the transverse sliding block (7), and the other end of the second hydraulic rod (9) is connected with the middle roller bearing seat (16) through a first connecting piece (8);
the rack (1) is provided with two working blocks (20), the two working blocks (20) are arranged in parallel, and the working blocks (20) are positioned between two adjacent transverse moving devices (2);
the hydraulic press comprises a third hydraulic rod (11), the upper end and the lower end of the working block (20) are respectively provided with the third hydraulic rod (11), and one end of the third hydraulic rod (11) is connected with the working block (20) through a second connecting piece (10).
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| CN202110710462.2A CN113522987B (en) | 2021-06-25 | 2021-06-25 | Cold rolling mill with convexity control device and control method |
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| CN202110710462.2A CN113522987B (en) | 2021-06-25 | 2021-06-25 | Cold rolling mill with convexity control device and control method |
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| JP2002282921A (en) * | 2001-03-21 | 2002-10-02 | Mitsubishi Heavy Ind Ltd | Rolling mill and shape correction method therefor |
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| CN109772889A (en) * | 2019-02-15 | 2019-05-21 | 广东含元工业技术有限公司 | A kind of cold-rolling mill |
| CN209531710U (en) * | 2019-01-25 | 2019-10-25 | 常州天力兰宝科技有限公司 | A kind of cold-rolled strip equipment of novel low-alloy high-strength steel |
| CN209631807U (en) * | 2019-01-08 | 2019-11-15 | 广东含元工业技术有限公司 | A kind of adjustable milling train of in-line arrangement convexity |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002282921A (en) * | 2001-03-21 | 2002-10-02 | Mitsubishi Heavy Ind Ltd | Rolling mill and shape correction method therefor |
| CN107442578A (en) * | 2016-05-31 | 2017-12-08 | 本钢板材股份有限公司 | A kind of cold rolling superthin CVC board-shape control methods |
| CN209631807U (en) * | 2019-01-08 | 2019-11-15 | 广东含元工业技术有限公司 | A kind of adjustable milling train of in-line arrangement convexity |
| CN209531710U (en) * | 2019-01-25 | 2019-10-25 | 常州天力兰宝科技有限公司 | A kind of cold-rolled strip equipment of novel low-alloy high-strength steel |
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