CN115138684A - Cold rolling device and process for finish-machined strip blank - Google Patents
Cold rolling device and process for finish-machined strip blank Download PDFInfo
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- CN115138684A CN115138684A CN202210919588.5A CN202210919588A CN115138684A CN 115138684 A CN115138684 A CN 115138684A CN 202210919588 A CN202210919588 A CN 202210919588A CN 115138684 A CN115138684 A CN 115138684A
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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
- B21B1/30—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 in a non-continuous process
- B21B1/32—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/36—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 in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work 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
- B21B15/0007—Cutting or shearing the 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
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
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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
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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
- B21B2015/0092—Welding in the rolling direction
Abstract
The invention discloses a cold rolling device and a process for finish machining of a strip blank. The two traction plates are respectively used for drawing the head end and the tail end of the strip blank; the two steel belt uncoiling machines are arranged at intervals, and can be provided with a belt blank coil and a traction plate and can drive the blank coil and the traction plate to uncoil; the cold rolling mechanism is arranged between the two steel strip uncoilers, is close to the steel strip uncoiler on the rear side and is used for cold rolling a strip blank; the laser welding machine is arranged between the cold rolling mechanism and the steel strip uncoiler on the front side and is used for welding the head end or the tail end of the strip blank with the traction plate; the cutting machine is arranged between the laser welding machine and the steel belt uncoiler on the front side and used for cutting the belt blank and the traction plate open. The device and the process can further improve the steel rolling efficiency and the thickness uniformity of the common carbon steel cold-rolled strip steel.
Description
Technical Field
The invention relates to the field of steel plate cold rolling equipment and technology, in particular to a cold rolling device and technology for finish-machined strip blanks.
Background
The cold rolling mill is a novel steel cold rolling processing device, cold rolling strip steel is applied to multiple industries such as automobiles, shipbuilding, electric power, coal and the like, but with the technological progress and the development of the society, the requirements of the industries on the quality, the specification and the quality of the strip steel are gradually improved, and in order to ensure that the strip steel can reach the application standard of the industries, the cold rolling mill is gradually developed towards the directions of high quality, high precision and high efficiency. Most of cold rolling mills on the market currently adopt traction plate traction and one-way cold roll cold rolling, the traction plate needs to be connected with a strip blank by using a welding technology before traction, most of welding at the present stage is a welding machine and manually assists in placing the traction plate and the strip blank, and the welding speed is low, the quality is low, and the steel rolling quality and efficiency are seriously influenced; the unidirectional cold rolling is a cold rolling process commonly used in the current cold rolling industry, but when the unidirectional cold rolling process is used for steel rolling, the grain arrangement on the steel rolling surface is unidirectional, and the condition easily causes uneven plate thickness, and seriously causes the defects of edge cracking, folding, layering and the like of a steel plate.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a cold rolling device and a process for finish machining of a strip blank, further improve the steel rolling efficiency and the thickness uniformity of common carbon steel cold-rolled strip steel, and cold rolling the head end and the tail end of the strip blank.
In order to achieve the purpose, the invention is realized by the following technical scheme: a cold rolling apparatus for finishing a strip, comprising:
the two traction plates are respectively used for drawing the head end and the tail end of the strip blank;
the steel strip uncoiler comprises two steel strip uncoilers, the two steel strip uncoilers are arranged at intervals, and the steel strip uncoiler can be provided with a strip blank coil and a traction plate and can drive the blank coil and the traction plate to uncoil;
the cold rolling mechanism is arranged between the two steel strip uncoilers, is close to the steel strip uncoiler on the rear side and is used for cold rolling a strip blank;
the laser welding machine is arranged between the cold rolling mechanism and the steel strip uncoiler on the front side and is used for welding the head end or the tail end of the strip blank with the traction plate; and
and the cutting machine is arranged between the laser welding machine and the steel belt uncoiler on the front side and is used for cutting the belt blank and the traction plate.
Further, the cutting machine includes cutting bed, first rotary power source, plug-in strip, rotation guide arm and mounting bracket, the cutting bed supports on ground, the plug-in strip top is provided with the support, first rotary power source sets up on the support, it has two, two to rotate the guide arm one end all with the mounting bracket is articulated, and one of them rotate the guide arm other one end with the top of support is articulated, another one rotate the guide arm other one end setting on the power output shaft of first rotary power source, install the below of plug-in strip the bottom of mounting bracket, the plug-in strip can cut on the strip base.
Further, the laser welding machine comprises a second rotary power source, a welding table, a guide roller, a ball screw, a laser welding head and a welding machine support frame; the welding table is arranged on the ground, the second rotating power source is arranged on the welding table, the welding machine support frame is arranged adjacent to the welding table, the ball screw is connected with the power output shaft of the second rotating power source, the laser welding head is arranged on the ball screw device, the ball screw device can drive the laser welding head to move back and forth, the welding head can weld a belt blank and a traction plate on the welding table together, the guide rollers are arranged on the welding machine support frame, the number of the guide rollers is two, the guide rollers are arranged on the welding machine support frame at intervals, and the belt blank can pass through the space between the two guide rollers.
The cold rolling mechanism comprises an oil wiping and dust removing mechanism, a rough rolling roller, a fine rolling roller, a reverse rough rolling roller and a cold rolling shell, slots are formed in the front end and the rear end of the cold rolling shell, a strip blank and a drawplate can penetrate through the slots, the oil wiping and dust removing mechanism is arranged on the cold rolling shell and can clean and wipe the strip blank entering the cold rolling shell from the slots, and the rough rolling roller, the fine rolling roller and the reverse rough rolling roller are sequentially distributed in the cold rolling shell from front to back and are used for cold rolling the strip blank.
The device further comprises two groups of leveling devices, wherein the two groups of leveling devices are respectively positioned on the front side and the rear side of the cold rolling mechanism and used for leveling the strip blank.
Further, leveling device includes flattening board, leveling platform and roll adjustment subassembly, the flattening board passes through the roll adjustment subassembly is installed the whole top of leveling platform, and the strip base can be followed the gap between flattening board and the leveling platform passes, just the roll adjustment subassembly can be adjusted the gap between flattening board and the leveling platform.
The speed stabilizing device is close to the front end of the steel strip uncoiler, can be clamped on a strip blank, and can allow the strip blank to pass through the speed stabilizing device;
further, speed stabilizing device includes a bottom supporting table, a cantilever frame, a rotating shaft and rollers, the bottom supporting table is arranged on the ground, the cantilever frame is arranged right above the bottom supporting table, the cantilever frame is a hollow frame, the bottom end face of the cantilever frame is provided with an opening communicated with an inner cavity of the cantilever frame, the rotating shaft is horizontally arranged and can be rotatably arranged in the cantilever frame, the rollers are arranged on the rotating shaft, the outer edges of the rollers extend out of the cantilever frame from the opening, a strip blank is arranged on the top face of the bottom supporting table and passes through the rollers, and the upper surface and the lower surface of the strip blank are respectively abutted against the supporting table and the rollers and can move between the bottom supporting table and the rollers.
The speed stabilizing device further comprises a first bevel gear, a second bevel gear, an installation rod, a rotary table and fan blades, wherein the first bevel gear is arranged on the rotary shaft and is arranged at an interval with the idler wheels, the installation rod is vertically arranged in the cantilever frame, the top end of the installation rod can be rotatably connected with the inner top surface of the cantilever frame, the second bevel gear is fixed at the bottom end of the installation rod and is meshed with the first bevel gear, the outer wall of the rotary table is prismatic, the rotary table can be slidably sleeved on the installation rod, key pins protruding outwards are axially arranged on the side wall of the installation rod, key grooves are formed in the inner ring of the rotary table and can be slidably inserted into the key grooves, the fan blades are arranged on the outer wall of the rotary table at intervals in the circumferential direction, prism grooves are formed in the top surface of the cantilever frame and are coaxially arranged with the installation rod, and the top of the rotary table can be inserted into the prism grooves.
The cold rolling process for the finish machining steel strip adopts the cold rolling device for the finish machining steel strip, and comprises the following steps:
two groups of steel strip uncoilers are adopted, a cutting machine, a laser welding machine and a cold rolling mechanism are sequentially arranged between the two groups of steel strip uncoilers from front to back, a steel coil is arranged on the front side steel strip uncoiler, and a traction plate is arranged on the rear side steel strip uncoiler;
uncoiling by an uncoiler on the front side and the rear side, enabling the head end of the strip blank to pass through a cutting machine forwards to reach a laser welding machine, enabling a traction plate to pass through a cold rolling mechanism to reach the laser welding machine, and welding the head end of the strip blank and the end of the traction plate together by a laser welding machine;
the front side steel belt uncoiler uncoils the steel belt, the rear side steel belt uncoiler coils the steel belt, and the cold rolling mechanism performs cold rolling on the head part and the middle part of the steel belt;
a second traction plate is arranged on the front side steel belt uncoiler again, and the rear end of the belt blank is welded with the second traction plate through welding the two traction plates by a laser welding machine;
rolling the rest part of the tail end of the strip billet in a single direction;
carrying out reverse cold rolling on the whole strip blank;
cutting the belt blank and the traction plate through a cutting machine;
and taking down the steel coil after the cold rolling is finished, and finishing the cold rolling.
The invention has the beneficial effects that:
when the cold rolling device and the process for the finish-machined strip billet are used, a strip billet coil 1 is arranged on a front-side steel strip uncoiler, and a first traction plate is arranged on a rear-side steel strip uncoiler; then, uncoiling the steel strip uncoilers on the front side and the rear side, enabling the head end of the strip blank to pass through the cutting machine forwards to reach the laser welding machine, enabling the traction plate to pass through the cold rolling mechanism to reach the laser welding machine, and enabling the head end of the strip blank and the end of the first traction plate to be welded together by the laser welding machine; then, a steel strip uncoiler at the rear side coils the steel strip, and a cold rolling mechanism performs cold rolling on the head part and the middle part of the strip blank; after cold rolling of the head and the middle part of the strip blank is finished, the tail end of the strip blank coil 1 is stopped under a laser welding machine, a second drawing plate is arranged on the front-side steel strip uncoiling machine again, and the rear end of the strip blank is welded with the second drawing plate through the laser welding machine; then, the rear side steel strip uncoiler continues to coil, and the rest part of the tail end of the strip blank can be pulled into a cold rolling mechanism to continue to perform unidirectional rolling; after finishing the unidirectional rolling, carrying out reverse cold rolling and repeated cold rolling on the whole strip blank; after cold rolling is finished, cutting the head end of the strip blank and the welding position of the traction plate through a cutting machine, and taking down the strip blank coil after cold rolling is finished.
By adopting the cold rolling device for finishing the strip blank, the uncoilers of the steel strips at two ends are used for running in the forward and reverse directions and repeatedly performing cold rolling, compared with the traditional one-way cold rolling process, the cold rolling device has the advantages of uniform thickness and stress of the rolled strip blank and the like, greatly reduces the possibility of easily generating defects of edge cracking, folding, layering and the like in the rolling process, and ensures the quality of the cold rolled strip blank; meanwhile, cold rolling of the head end and the tail end of the strip can be realized, so that the quality of the steel strip is further improved, and the waste of steel is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. The elements or parts are not necessarily drawn to scale in all figures.
FIG. 1 is a schematic illustration of a cold rolling apparatus for finishing a strip in accordance with one embodiment of the present invention;
FIG. 2 is a schematic illustration of a laser welder in a cold rolling apparatus for finishing a strip as shown in FIG. 1;
FIG. 3 is a schematic view of a speed stabilizer in the cold rolling apparatus for finishing a strip shown in FIG. 1;
FIG. 4 is a schematic illustration of a cold rolling process for finishing a strip as shown in FIG. 1;
reference numerals:
100. a traction plate;
200. steel strip uncoiler
300. A cold rolling mechanism; 310. an oil wiping and dust removing mechanism; 320. a rough roller; 330. finishing and rolling; 340. a reverse rough roller; 350. cold rolling the shell;
400. laser welding machine; 410. a second rotary power source; 420. a welding table; 430. a guide roller; 440. a ball screw; 450. a laser welding head; 460. welding machine support frame
500. A cutter; 510. cutting table; 520. a first rotary power source; 530. a knife switch; 540. a rotating guide rod 550 and a mounting rack;
600. a leveling device; 610. a leveling plate; 620. leveling platform
700. A speed stabilizing device; 710. a bottom support platform; 720. a cantilever mount; 721. a prismatic groove; 730. a rotating shaft; 740. a roller; 750. a first bevel gear; 760. a second bevel gear; 770. mounting a rod; 771. a key pin; 780. a turntable.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
Referring to fig. 1 to 4, the present invention provides a cold rolling apparatus for finishing a strip blank, which includes a traction plate 100, a strip uncoiler 200, a cold rolling mechanism 300, a laser welding machine 400, and a cutting machine 500. The two pulling plates 100 are provided, and the two pulling plates 100 are used for pulling the head end and the tail end of the strip blank respectively. The number of the steel strip uncoiling machines 200 is two, the two steel strip uncoiling machines 200 are arranged at intervals, and the steel strip uncoiling machines 200 can be provided with the strip billet coil 1 and the traction plate 100 and can drive the strip billet coil 1 and the traction plate 100 to uncoil;
the cold rolling mechanism 300 is provided between the two steel strip uncoilers 200, and is close to the steel strip uncoiler 200 on the rear side for cold rolling a strip blank. The laser welding machine 400 is arranged between the cold rolling mechanism 300 and the steel strip uncoiler 200 at the front side, and is used for welding the head end or the tail end of the strip blank with the traction plate 100; the cutter 500 is provided between the laser welder 400 and the steel strip uncoiler 200 at the front side for slitting the strip blank and the traction plate 100.
When the device is used, the strip blank coil 1 is arranged on the front side steel strip uncoiler 200, and the first traction plate 100 is arranged on the rear side steel strip uncoiler 200;
subsequently, the steel strip uncoilers 100 on the front side and the rear side uncoil, the head ends of the strip blanks pass through the cutting machine 500 forwards to the laser welding machine 400, the traction plates 100 pass through the cold rolling mechanism 300 to the laser welding machine 400, and the laser welding machine 400 welds the head ends of the strip blanks and the end of the first traction plate 100 together; subsequently, the steel strip uncoiler 200 at the rear side coils the steel strip, and the cold rolling mechanism 300 performs cold rolling on the head part and the middle part of the steel strip; after the cold rolling of the head and the middle part of the strip blank is finished, the tail end of the strip blank coil 1 is stopped under the laser welding machine 400, the second traction plate 100 is arranged on the front-side steel strip uncoiler 200 again, and the rear end of the strip blank is welded with the second traction plate 100 through the laser welding machine 400; subsequently, the rear steel strip uncoiler 100 continues to coil, and the rest part of the tail end of the strip can be pulled into the cold rolling mechanism 300 to continue to perform unidirectional rolling; after finishing the unidirectional rolling, carrying out reverse cold rolling and repeated cold rolling on the whole strip blank; after cold rolling is completed, the front end of the strip is cut off from the welding position of the traction plate 100 by the cutting machine 500, and the strip coil after cold rolling is taken down.
By adopting the cold rolling device for finishing the strip blank, the steel strip uncoiler 200 at two ends is used for running in the forward and reverse directions and repeatedly performing cold rolling, compared with the traditional one-way cold rolling process, the cold rolling device has the advantages of uniform thickness and stress of the rolled strip blank and the like, greatly reduces the possibility of easily generating defects of edge cracking, folding, layering and the like in the rolling process, and ensures the quality of the cold rolled strip blank; meanwhile, cold rolling of the head end and the tail end of the strip can be realized, so that the quality of the strip is further improved, and the waste of steel is reduced.
In the present embodiment, the laser welding machine 400 includes a second rotary power source 410, a welding station 420, guide rollers 430, a ball screw 440, a laser welding head 450, and a welding machine support frame 460. The welding table 420 is arranged on the ground, the second rotating power source 410 is arranged on the welding table 420, the welding machine supporting frame 460 is arranged adjacent to the welding table 420, the ball screw 440 is connected with a power output shaft of the second rotating power source 410, the laser welding head 450 is arranged on the ball screw 440, the ball screw 440 can drive the laser welding head 450 to move back and forth and can weld a strip blank on the welding table 420 and the traction plate 100 together, the guide rollers 430 are arranged on the welding machine supporting frame 460, the two guide rollers 430 are arranged on the welding machine supporting frame 460 at intervals, the strip blank can pass through the two guide rollers 430, and the two guide rollers 430 guide the steel plate.
When the welding machine is used, the ball screw 440 is driven to rotate, the welding machine support frame 460 can be driven to move left and right, and the purpose of further welding operation can be achieved.
In this embodiment, the cutting machine 500 includes a cutting table 510, a first rotary power source 520, a guillotine 530, a turning guide 540, and a mounting bracket 550. The cutting table 510 is supported on the ground, a support is arranged above the switch blade 530, the first rotary power source 520 is arranged on the support, two rotary guide rods 540 are arranged on the support, one ends of the two rotary guide rods 540 are hinged to the mounting frame 550, the other end of one of the rotary guide rods 540 is hinged to the top end of the support, the other end of the other rotary guide rod 540 is arranged on a power output shaft of the first rotary power source 520, the bottom of the mounting frame 550 is arranged below the switch blade 530, and the switch blade 530 can cut on a strip blank.
When the cold rolling is required to be completed, the leading end of the strip is cut off from the traction plate 100 by the cutter 500, and the strip after the cold rolling can be wound up for the next cold rolling.
In this embodiment, the first rotation power source 520 is used to drive the rotation guide 540, and the rotation guide 540 converts the rotation into the vertical movement of the knife 530, so that the cutting is more stable.
In this embodiment, the cold rolling mechanism 300 includes an oil wiping and dust removing mechanism 310, a rough rolling roller 320, a finishing rolling roller 330, a reverse rough rolling roller 340, and a cold rolling housing 350, slots are formed at the front and rear ends of the cold rolling housing 350, the strip blank and the drawplate can pass through the slots, the oil wiping and dust removing mechanism 310 is installed on the cold rolling housing 350 and can clean and wipe the strip blank entering the cold rolling housing 350 from the slots, and the rough rolling roller 320, the finishing rolling roller 330, and the reverse rough rolling roller 340 are sequentially distributed in the cold rolling housing 350 from front to back for cold rolling the strip blank.
Specifically, the oil wiping and dust removing mechanism 310 may be an oil wiping and dust removing device made of common brushes or plastic foams, and when the strip passes through the oil wiping and dust removing mechanism 310, oil stains and dust on the surface of the strip can be removed, so that the roll and the strip are prevented from being crushed during cold rolling. The strip is roughly rolled by the rough roll 320, finish rolled by the finish roll 330, and the thickness of the strip is gradually reduced by the rough roll 320 and the finish roll 330. The shape and size of the reverse roughing roller 320 should be the same as those of the roughing roller 320 so that the cold rolling effect in both directions of the cold rolling mechanism 300 is the same, thereby improving the convenience of the whole apparatus.
In a preferred embodiment, the cold rolling device for finishing steel strip further comprises two sets of leveling devices 600, wherein the two sets of leveling devices 600 are respectively located at the front side and the rear side of the cold rolling mechanism 300 and are used for leveling the strip. Specifically, the screed apparatus 600 includes a screed plate 610, a screed station 620, and a pitch assembly. The screed 610 is mounted above the screed 620 via a pitch assembly, the strip can pass through a gap between the screed 610 and the screed 620, and the pitch assembly can adjust the gap between the screed 610 and the screed 620.
When in use, the cold rolling of the cold rolling mechanism 300 can be further facilitated through the guiding and leveling of the leveling device 600. The distance adjustment assembly can be screw-type adjustment.
In a more preferred embodiment, the cold rolling apparatus for finishing a steel strip further includes a speed stabilizer 700. The speed stabilizer 700 is close to the front end steel strip uncoiler 200, the speed stabilizer 700 can clamp on the strip blank, and the strip blank can pass through the speed stabilizer 700.
In the cold rolling process, the strip blank passes through the speed stabilizing device 700 at a constant speed under the driving of the steel strip uncoiler 200, after the cutting is finished, the strip blank is separated from the traction plate 100, at the moment, the tension of the traction plate 100 on the strip blank is relieved, at the moment, the speed stabilizing device 700 is clamped on the strip blank, a certain tension can be formed on the strip blank, and the strip blank is slowly coiled on the steel strip uncoiler 200.
Specifically, in the present embodiment, the speed stabilizing device 700 includes a bottom support 710, a cantilever frame 720, a rotating shaft 730 and a roller 740. The bottom supporting platform 710 is arranged on the ground, the cantilever frame 720 is arranged right above the bottom supporting platform 710, the cantilever frame 720 is a hollow frame, an opening communicated with an inner cavity of the cantilever frame 720 is formed in the bottom end face of the cantilever frame 720, the rotating shaft 730 is horizontally and rotatably arranged in the cantilever frame 720, the roller 740 is arranged on the rotating shaft 730, the outer edge of the roller 740 extends out of the cantilever frame 720 from the opening, a strip blank passes through the space between the top surface of the bottom supporting platform 710 and the roller 740, and the upper surface and the lower surface of the strip blank are respectively abutted to the supporting platform and the roller 740 and can move between the bottom supporting platform 710 and the roller 740.
In the cold rolling process, the strip is located between the supporting table and the roller 740, when the strip moves, the roller 740 is driven to roll, so that the strip can pass through smoothly, and meanwhile, as the roller 740 and the bottom supporting table 710 form a clamping force on the strip, a certain tension force can be formed on the strip, so that the strip is slowly wound on the steel strip uncoiler 200.
In a specific implementation, the height of the bottom support 710 can be adjusted, so that the gap between the bottom support 710 and the roller 740 can be suitable for the drawbar 100 or the belt blank with different thicknesses, and a more effective clamping effect can be formed between the bottom support 710 and the roller 740.
As a more preferable embodiment, the speed stabilizing device 700 further includes a first bevel gear 750, a second bevel gear 760, a mounting rod 770, a turntable 780, and a fan blade. The first bevel gear 750 is arranged on the rotating shaft 730 and is arranged at an interval with the roller 740, the mounting rod 770 is vertically arranged in the cantilever frame 720, the inner top surface of the cantilever frame 720 at the top end of the mounting rod 770 can be rotatably connected, the second bevel gear 760 is fixed at the bottom end of the mounting rod 770 and is meshed with the first bevel gear 750, the outer wall of the rotary table 780 is in a prism shape, the rotary table 780 can be slidably sleeved on the mounting rod 770, the side wall of the mounting rod 770 is axially provided with a key pin 771 protruding outwards, the inner ring of the rotary table 780 is provided with a key groove, the key pin 771 and the key groove can be slidably inserted, a plurality of blades are arranged on the outer wall of the rotary table 780 at intervals in the circumferential direction, the inner top surface of the cantilever frame 720 is provided with a prism groove 721, the prism groove 721 is coaxially arranged with the mounting rod 770, and the top of the rotary table 780 can be inserted into the prism groove.
When the belt blank is cut, the outward movement speed is too fast, the roller 740 is driven to rotate at a flying speed, the rotating shaft 730 drives the mounting rod 770 to rotate at a flying speed through the first bevel gear 750 and the second bevel gear 760, the rotating disc 780 rotates at a flying speed along with the mounting rod 770, and the fan blades generate buoyancy. The rotary table 780 moves upwards along the axial direction of the mounting rod 770 under the action of the floating force until the top of the rotary table 780 is inserted into the prismatic groove 721, so that the rotary table 780 is clamped, further the mounting rod 770 is prevented from continuing to rotate, the rotating shaft 730 and the roller 740 are prevented from rotating through the first bevel gear 750 and the second bevel gear 760, a belt blank or a traction belt is clamped between the roller 740 and the bottom supporting table 710, the belt blank or the traction belt is prevented from continuing to move, after the speed of the belt blank or the traction belt stops, the floating force of the rotary table 780 disappears, the rotary table 780 slowly slides down to separate from the prismatic groove 721, the clamping force of the belt blank or the traction belt can be relieved, and the belt blank or the traction belt can continue to move slowly.
Through the speed stabilizing device 700, the speed of the strip blank or the traction belt can be stabilized within a certain range, so that the strip blank or the traction belt is prevented from being too fast, and further, after the strip blank and the traction belt are separated, a certain tension force can be formed on the strip blank, and the strip blank is slowly wound on the steel belt uncoiler 200.
The invention also provides a cold rolling process for the finish-machined strip blank, which comprises the following steps:
s110, two groups of steel strip uncoilers 200 are adopted, a cutting machine 500, a laser welding machine 400 and a cold rolling mechanism 300 are sequentially arranged between the two groups of steel strip uncoilers 200 from front to back, a strip blank coil is arranged on the front side steel strip uncoiler 200, and a traction plate 100 is arranged on the rear side steel strip uncoiler 200;
s120, uncoiling by an uncoiler on the front side and the rear side, enabling the head end of the strip to pass through a cutter 500 forwards to reach a laser welding machine 400, enabling the traction plate 100 to pass through a cold rolling mechanism 300 to reach the laser welding machine 400, and enabling the head end of the strip to be welded with the end portion of the traction plate 100 by the laser welding machine 400;
s130, a front side steel belt uncoiler 200 uncoils the steel belt, a rear side steel belt uncoiler 200 coils the steel belt, and the head and the middle of the steel belt of the cold rolling mechanism 300 are cold rolled;
specifically, the steel strip uncoiler 200 uncoils the steel strip, the steel strip uncoiler 200 at the rear side coils the strip, the cold rolling mechanism 300 cold rolls the head and the middle of the strip, and when the tail end of the strip moves to the position right below the laser welding machine 400, the steel strip uncoilers 200 at the front side and the rear side stop simultaneously.
S140, arranging a second traction plate 100 on the front-side steel strip uncoiler 200 again, and welding the two traction plates by a laser welding machine 400 to weld the rear end of the strip blank with the second traction plate 100;
specifically, the second pulling plate 100 is disposed on the front-side steel strip uncoiler 200 again, and then the front-side steel strip uncoiler 200 uncoils the second pulling plate 100 and conveys the end of the second pulling plate 100 to a position right below the laser welder 400, and the laser welder 400 welds the rear end of the strip blank with the second pulling plate 100.
S150, rolling the rest part of the tail end of the strip billet in a single direction;
specifically, the rear side steel strip is uncoiled by the uncoiler 200, the front side steel strip is uncoiled by the uncoiler 200, and the remaining part of the tail end of the strip is unidirectionally rolled.
S160, carrying out reverse cold rolling on the whole strip blank;
specifically, after the one-way rolling of the remaining portion of the tail end of the strip is completed, the two steel strip uncoilers 200 rotate in the reverse direction to reversely roll the whole strip, and the forward and reverse cold rolling can be repeated for a plurality of times
S170, cutting the strip blank and the traction plate 100 through a cutting machine 500;
specifically, the connecting portion of the strip and the drawplate is positioned right below the laser welder 400, and the strip and the drawplate are connected
And S180, taking down the strip coil after cold rolling to finish cold rolling.
Specifically, the strip coil after cold rolling is taken off, cold rolling is completed, a new strip is replaced, and one-time cold rolling can be performed.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (10)
1. A cold rolling apparatus for finishing a steel strip, comprising:
the two traction plates are respectively used for drawing the head end and the tail end of the strip blank;
the steel strip uncoiling machine comprises two steel strip uncoiling machines, the two steel strip uncoiling machines are arranged at intervals, and the steel strip uncoiling machines can be provided with a strip billet coil and a traction plate and can drive the billet coil and the traction plate to uncoil;
the cold rolling mechanism is arranged between the two steel strip uncoilers, is close to the steel strip uncoiler on the rear side and is used for cold rolling a strip blank;
the laser welding machine is arranged between the cold rolling mechanism and the steel strip uncoiler on the front side and is used for welding the head end or the tail end of the strip blank with the traction plate; and
and the cutting machine is arranged between the laser welding machine and the steel strip uncoiler on the front side and is used for cutting open the strip blank and the traction plate.
2. A cold rolling device for a finished steel strip according to claim 1, wherein said cutting machine comprises a cutting table, a first rotary power source, two rotary guide rods and a mounting frame, said cutting table is supported on the ground, a support is arranged above said switch, said first rotary power source is arranged on said support, one end of each of said two rotary guide rods is hinged to said mounting frame, the other end of one of said rotary guide rods is hinged to the top end of said support, the other end of the other rotary guide rod is arranged on the power output shaft of said first rotary power source, said switch is arranged at the bottom of said mounting frame, and said switch can cut on said strip.
3. A cold rolling apparatus for finishing a steel strip according to claim 1, wherein said laser welder comprises a second rotary power source, a welding table, guide rolls, a ball screw, a laser welder head, and a welder support frame; the welding table is arranged on the ground, the second rotating power source is arranged on the welding table, the welding machine support frame is arranged adjacent to the welding table, the ball screw is connected with the power output shaft of the second rotating power source, the laser welding head is arranged on the ball screw device, the ball screw device can drive the laser welding head to move back and forth, the welding head can weld a belt blank and a traction plate on the welding table together, the guide rollers are arranged on the welding machine support frame, the number of the guide rollers is two, the guide rollers are arranged on the welding machine support frame at intervals, and the belt blank can pass through the space between the two guide rollers.
4. The cold rolling device for finish-rolling steel strips according to claim 1, wherein the cold rolling mechanism comprises an oil wiping and dust removing mechanism, a roughing roller, a finishing roller, a reverse roughing roller and a cold rolling shell, slots are formed in the front end and the rear end of the cold rolling shell, a strip blank and a pulling plate can penetrate through the slots, the oil wiping and dust removing mechanism is arranged on the cold rolling shell and can clean and wipe the strip blank entering the cold rolling shell from the slots, and the roughing roller, the finishing roller and the reverse roughing roller are sequentially distributed in the cold rolling shell from front to back and are used for cold rolling the strip blank.
5. The cold rolling device for finishing a steel strip as claimed in claim 1, further comprising two sets of leveling devices, said two sets of leveling devices being respectively located at front and rear sides of said cold rolling means for leveling a strip.
6. A cold rolling device for finishing steel strip according to claim 5, wherein said leveling device comprises a leveling plate, a leveling platform and a pitch assembly, said leveling plate being mounted above said leveling platform by said pitch assembly, a strip being able to pass through a gap between said leveling plate and said leveling platform, and said pitch assembly being able to adjust said gap between said leveling plate and said leveling platform.
7. A cold rolling apparatus for finishing a steel strip as claimed in claim 1 further comprising a speed stabilizer located near the front end of said steel strip uncoiler, said speed stabilizer being capable of clamping onto and passing through a strip;
8. the cold rolling device for finish machining of steel strips according to claim 7, wherein the speed stabilizing device comprises a bottom support platform, a cantilever frame, a rotating shaft and rollers, the bottom support platform is arranged on the ground, the cantilever frame is arranged right above the bottom support platform, the cantilever frame is a hollow frame, an opening communicated with an inner cavity of the cantilever frame is formed in the bottom end face of the cantilever frame, the rotating shaft is horizontally and rotatably arranged in the cantilever frame, the rollers are arranged on the rotating shaft, the outer edges of the rollers extend out of the cantilever frame from the opening, a strip blank passes through between the top face of the bottom support platform and the rollers, and the upper surface and the lower surface of the strip blank are respectively abutted against the support platform and the rollers and can move between the bottom support platform and the rollers.
9. The cold rolling device for finishing the steel strip as claimed in claim 8, wherein the speed stabilizer further comprises a first bevel gear, a second bevel gear, a plurality of blades, a rotating disc and a plurality of blades, the first bevel gear is disposed on the rotating shaft and spaced from the rollers, the mounting rod is vertically disposed in the cantilever frame, the top end of the mounting rod is rotatably connected to the inner top surface of the cantilever frame, the second bevel gear is fixed to the bottom end of the mounting rod and is engaged with the first bevel gear, the outer wall of the rotating disc is prism-shaped, the rotating disc is slidably sleeved on the mounting rod, a key pin protruding outwards is axially disposed on the side wall of the mounting rod, a key groove is disposed on the inner ring of the rotating disc, the key pin is slidably inserted into the key groove, the plurality of blades are circumferentially spaced from the outer wall of the rotating disc, a prism groove is disposed on the inner top surface of the cantilever frame, the prism groove is coaxial with the mounting rod, and the top of the rotating disc is insertable into the prism groove.
10. A cold rolling process for finishing a strip, characterized in that it comprises the steps of:
two groups of steel strip uncoilers are adopted, a cutting machine, a laser welding machine and a cold rolling mechanism are sequentially arranged between the two groups of steel strip uncoilers from front to back, a steel coil is arranged on the front side steel strip uncoiler, and a traction plate is arranged on the rear side steel strip uncoiler;
uncoiling by an uncoiler on the front side and the rear side, enabling the head end of the strip blank to pass through a cutting machine forwards to reach a laser welding machine, enabling a traction plate to pass through a cold rolling mechanism to reach the laser welding machine, and welding the head end of the strip blank and the end of the traction plate together by a laser welding machine;
the front side steel belt uncoiler uncoils the steel belt, the rear side steel belt uncoiler coils the steel belt, and the cold rolling mechanism performs cold rolling on the head part and the middle part of the steel belt;
a second traction plate is arranged on the front side steel belt uncoiler again, and the rear end of the belt blank is welded with the second traction plate through welding the two traction plates by a laser welding machine;
rolling the rest part of the tail end of the strip billet in a single direction;
carrying out reverse cold rolling on the whole strip blank;
cutting the strip blank and the traction plate through a cutting machine;
and taking down the steel coil after the cold rolling is finished, and finishing the cold rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210919588.5A CN115138684A (en) | 2022-08-02 | 2022-08-02 | Cold rolling device and process for finish-machined strip blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210919588.5A CN115138684A (en) | 2022-08-02 | 2022-08-02 | Cold rolling device and process for finish-machined strip blank |
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| Publication Number | Publication Date |
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| CN115138684A true CN115138684A (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210919588.5A Pending CN115138684A (en) | 2022-08-02 | 2022-08-02 | Cold rolling device and process for finish-machined strip blank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115555401A (en) * | 2022-11-01 | 2023-01-03 | 海安华诚新材料有限公司 | One-step cold rolling equipment for oriented silicon steel with high cold rolling efficiency |
| CN115945520A (en) * | 2022-12-23 | 2023-04-11 | 德清县荣昌冷轧带钢有限公司 | Rolling equipment for processing cold-rolled sheet |
| CN115971264A (en) * | 2023-02-22 | 2023-04-18 | 昆明华信金属材料制造有限公司 | Galvanized steel sheet's book rolls device with crack detection function |
-
2022
- 2022-08-02 CN CN202210919588.5A patent/CN115138684A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115555401A (en) * | 2022-11-01 | 2023-01-03 | 海安华诚新材料有限公司 | One-step cold rolling equipment for oriented silicon steel with high cold rolling efficiency |
| CN115555401B (en) * | 2022-11-01 | 2023-10-13 | 海安华诚新材料有限公司 | Oriented silicon steel primary cold rolling equipment with high cold rolling efficiency |
| CN115945520A (en) * | 2022-12-23 | 2023-04-11 | 德清县荣昌冷轧带钢有限公司 | Rolling equipment for processing cold-rolled sheet |
| CN115971264A (en) * | 2023-02-22 | 2023-04-18 | 昆明华信金属材料制造有限公司 | Galvanized steel sheet's book rolls device with crack detection function |
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