WO2021248751A1 - 一种实施无间隙推钢的控制装置和控制方法 - Google Patents

一种实施无间隙推钢的控制装置和控制方法 Download PDF

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Publication number
WO2021248751A1
WO2021248751A1 PCT/CN2020/118978 CN2020118978W WO2021248751A1 WO 2021248751 A1 WO2021248751 A1 WO 2021248751A1 CN 2020118978 W CN2020118978 W CN 2020118978W WO 2021248751 A1 WO2021248751 A1 WO 2021248751A1
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WIPO (PCT)
Prior art keywords
reel
roller
spring
steel
control
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PCT/CN2020/118978
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English (en)
French (fr)
Inventor
苗旺
王金华
严加根
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上海梅山钢铁股份有限公司
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Priority to DE112020007318.1T priority Critical patent/DE112020007318T5/de
Publication of WO2021248751A1 publication Critical patent/WO2021248751A1/zh

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
    • B21C47/063—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum with pressure rollers only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the invention relates to a control device, in particular to a control method for implementing gapless steel pushing, and belongs to the technical field of cold rolling equipment.
  • the coiler with the lead-in jaw type structure commonly used by the pickling unit coilers at home and abroad because the thickness of the strip is generally thick, the Max reaches 10mm, the strength is high, and it is not easy to bend.
  • the control technology to ensure the roll shape after washing and unloading to prevent core pulling and unwinding during unloading is mostly to add a set of push rod mechanisms above or below the reel of the coiler to ensure that after the unloading action
  • the method of preventing the occurrence of core-pulling loose coils has achieved the leveling effect of the outer circle of the steel coil, its defects are also obvious.
  • the pickling sheet In order to ensure the quality of the coil shape when the strip steel is crimped, the pickling sheet must be aligned first.
  • this unit In addition to adopting 8 sets of CPC rectification and 1 set of EPC patrol device to control the operation center of the strip to coincide with the center line of the unit, this unit also starts from the coiling, which not only guarantees a good scale breaking effect, and improves the shape prevention
  • the strip steel produces waist folds, and from the entrance of the coiler, a steering pinch roller with a convex structure and a certain self-correcting ability and a side guide centering mechanism with a strong centering effect are set up from the entrance of the coiler to meet the needs of the board.
  • the strip When the strip is coiled, there will be no large core pulling or even loose coiling. Once a relatively large overflow edge exceeding 3mm occurs during the coiling process, the coils are arranged on the upper and lower sides of the reel.
  • the push rod mechanism is easy to cause hemming, which can also be encountered in actual production; in addition, for the smaller overflow edge generated during the winding, the gap or the gap between the rolls may be caused by the wear of the roll slider.
  • the uneven friction force causes the relative displacement between the layers of the steel coil in the direction of the roll transverse movement after the expansion and contraction process and during the unwinding process, and the tower-shaped phenomenon occurs, and more, the thrust Unevenness causes serious wear on the rollers on the unloading trolley, and is often accompanied by burrs that cause the pickled steel coils to be scratched and further lead to surface quality defects.
  • the Chinese patent 201611105898.4 "Control Device for Preventing Tower Unloading” is a device that integrates supporting, following and stabilizing functions, and effectively ensures that the steel coil will not break up. It can improve the unloading effect and control the board. The quality of the strip steel plate can achieve the purpose of improving the yield rate.
  • this technology requires a set of control procedures as the basis, and the device adopts a cylinder compression method.
  • the damage rate of the cylinders used by several unwinding devices of the unit is generally high. It needs to be discovered in time and replaced regularly. These invisibly increase the investment capital . Therefore, there is an urgent need for a device capable of fully mechanical anti-scatter rolls, loose rolls, and tower rolls.
  • the present invention proposes a technology that is different from the above methods. Therefore, the main problems to be solved by the disclosed technology and the original The technology is similar but the technical solution is different from this technology.
  • the present invention is aimed at the problems in the prior art, and provides a control method and implementation device for implementing gapless steel pushing, and mainly solves the technical problems that are difficult to solve in the field in the prior art, especially the 10mm pickling unloading
  • the actuator is easily damaged at times, and the friction between the steel coil and the reel causes the phenomenon of core pulling and uncoiling. While improving the unloading effect, it can effectively control the quality of the strip and steel plate to achieve the purpose of improving the yield rate.
  • a control device for pushing steel without gaps includes a guide post, a cylinder support, a push plate, a bakelite board, a locking plate, a locking block, and a bolt.
  • Slider First spring, left guide plate, spring pressure plate, spring guide post, right guide plate, bolts, arc-shaped end faces, supports, support rollers, support roller bearings, bolts, spacer rings, bolts, liners, baffles, and Screws, the slider is fixed on the push plate by 6 bolts, the first spring is sleeved in the spring guide column, and is connected to the left guide plate and the right guide plate through the spring pressure plate.
  • the spring pressure plate is provided with a set of first springs pressed against the guide column.
  • the slider follows the guide post, and the support roller set on the support is driven to rotate by the slider.
  • the oblique cut of the slider extends in the direction of the tangent point of the rotation of the support roller until the bottom of the slider is curved.
  • the end surface and the reel are tightly attached under the action of the first spring.
  • the cutting point position needs to be calculated according to the tonnage to be cut. At this time, the strip is cut. After the coiler completes the coiling of the previous piece of strip steel, the next piece needs to be
  • the coiled steel strip reaches the coiler drum along the shrink guide plate.
  • the set roller converts the flat steel strip into the set steel strip, with 15% The angle will lead the lead into the jaws and be clamped.
  • the telescopic guide plate retracts, the cylinder lifts the sleeve roller, the strip steel is straightened, and the supporting roller is pressed against the strip steel on the reel under the action of the cylinder.
  • the first spring ring has a pitch of 10.3mm and a total length of 190mm, which can be compressed into 3 segments, 59.2mm, 91.1mm, and 140.6mm, respectively, and the corresponding elastic force is 200N, 400N, and 500N.
  • the head of the slider is reversed to the rounded corners of R5, and the neck of the slider is reversed to the rounded corners of R10.
  • the radian of the bottom surface of the slider is R305
  • the oblique angle of the slider is 30°
  • the angle between the bottom surface of the slider and the horizontal line is 15°.
  • the control device also includes a pinch roller, a steering roller, an oil cylinder, a telescopic guide plate, a set roll, a set of strip steel, a reel, a supporting roll, and a " ⁇ " type member
  • the entrance of the coiler is also equipped with a steering pinch roller with a certain self-correcting ability
  • the exit of the steering roller is equipped with a set of pressure rollers with a control sleeve.
  • the coiling support roller of the coiler is composed of two sets of guide rollers. Support roller system; the guide roller bearing support block presents a symmetrical " ⁇ " structure on both sides.
  • the guide roller is fixed on the " ⁇ " member by the pin structure through the frame support block.
  • the two sets of guide rollers follow the steel along the pin shaft.
  • the large circle diameter of the roll can rotate freely, and follow up in real time as the thrust of the hydraulic cylinder changes.
  • the control device further includes a looper U-shaped roller mounting seat, a compression bolt, a spring cavity, and a second spring.
  • the depth and width of the mounting groove in the middle of the base are designed to match the U-shaped seat, It can be adjusted freely and can be prevented from falling.
  • the top thread hole is added through the side of the U-shaped seat to offset the force of the strip steel during the correction adjustment of the idler and ensure the stable operation of the idler; the bottom left and right sides of the U-shaped seat are respectively provided
  • the U-shaped seat pre-tensions the spring under the pressure of the strip.
  • the tension of the strip on the roller changes. The effect of self-correction is achieved under the action of the spring.
  • a control method for implementing gapless steel pushing includes the following steps:
  • Step 1 Uncoiling ⁇ centering control in the whole process of coiling machine
  • Step 2 Thread the belt through the steering roller at low speed, and the belt head is forced to bend downward and lead it downward.
  • Step 3 Follow the telescopic guide plate to the jaws of the reel of the coiler, and the sleeve measuring roller is pressed down to control the micro sleeve amount of the strip steel.
  • Step 4 Rotate the reel, lead the strip into the jaws
  • Step 5 The reel of the coiler is opened and the strip steel is successfully clamped by the jaws.
  • Step 6 Rotate the reel, curl the strip along the outer circumference of the reel,
  • Step 7 When the required length is reached, the reel stops and shrinks, and the push plate device moves forward.
  • Step 8 The push plate is infinitely close to the end face of the steel coil. During walking, the slider moves forward along the baffle along with the push plate, and the spring continuously restores the elastic force to press down the entire push plate device to achieve a gap-free close to the reel.
  • Step 9 The push plate device follows the action of the unloading trolley to realize the gapless push of the steel.
  • Step 10 The steel coil is unloaded, the push plate device is retracted, and the next coil is ready for unloading.
  • the 8+1 centering control mode is adopted.
  • the control mode includes 8 sets of CPC correction devices and 1 set of EPC edge patrol devices to strictly control the belt.
  • the operation center of the steel coincides with the center line of the unit; the accuracy of 9#EPC edge patrol device is set at 1mm.
  • the original single piston rod is improved to an equal-diameter double-piston rod structure to balance the rod The area of the end and the blind end is different, and the follow-up effect is better.
  • the 9#EPC action control is improved from the original cylinder displacement detection only to the servo valve spool position detection + cylinder position detection dual detection mode, which achieves a short response time. The actual measured data is accurate and the detection effect is good.
  • the step 1 is also achieved by improving the specific related equipment of the unit, including the deviation control of the uncoiler, the deviation control of the looper, and the deviation control of the outlet section of the acid tank.
  • the deviation control of the uncoiler is the anti-wrinkle roller wear deviation control.
  • the method of adding support rollers is adopted to slow down the belt caused by large unilateral wear and uneven contact force caused by a single roller. Steel deviation problem.
  • the supporting roller and the anti-wrinkle roller are composed of a roller system. During the unwinding process, the anti-wrinkle roller and the supporting roller rotate toward each other, closely fitting, and uniformly abraded.
  • the number of the supporting rollers is 2 in one group, and bearing seats are arranged on both sides of the roller neck, which facilitates gap adjustment and prevents roller jams.
  • the roll diameter ratio of the steering roller and the pinch roller in the step 2 is 3:1; the belt threading speed is 5 m/min; and the winding speed is 15 m/min after the winding machine is built.
  • the micro-sleeve amount of the controlled strip under the rolling reduction of the sleeve amount is the arc length L/COS10°, where L is the length of the guide plate.
  • the reel is rotated to the horizontal tangent angle of 15° to the same reel, and the angle is the optimal introduction angle for the strip steel to be introduced into the jaws.
  • the low-speed two-snare measuring roller is raised, and the coiling assists the pressing roller and the supporting roller to press down;
  • the push plate device advances, and the reel is contracted with the steel coil There must be a 15mm gap between them, that is, the inner ring is circular and the reel is in a retracted state;
  • the push plate device is arranged with four sets of automatic mechanical follow-up clamping devices along the circumference of the reel; there are between each set of clamping devices
  • the first device automatic mechanical follow-up clamping device (39-1) and the second automatic mechanical follow-up clamping device (39-2) include an angle of 60°
  • the clamping device and the third automatic mechanical follow-up clamping device (39-3) have an angle of 90 degrees
  • the included angle is 60°, the first and fourth automatic mechanical follow-up clamping devices; the
  • the push plate device in the step 8 is actually used for barrel diameters of different sizes and sleeves with different enlarged diameter sizes.
  • the movement of the slider is used to control the change of the spring force, and the spring pressure will tighten the push plate. It clings to different sizes of reels and the outer circle of the diameter-increasing sleeve, and is steplessly adjusted accordingly.
  • the step 9 takes into account that weak vibration will be generated due to unbalanced load, in order to maintain stable operation and good balance. While unloading the roll, the push plate device follows the entire unloading process.
  • the push plate device is provided with two symmetrical guiding stabilizers. The device is driven by an oil cylinder.
  • the intermediate trunnion type structure is used for the oil cylinder of the device.
  • the expansion and contraction pressure of the reel adopts stepless pressure change, and an ideal pressure output value is determined according to the weight of the steel coil on site, and the purpose is to achieve the best tightening effect.
  • the present invention has the following advantages: 1) The technical solution has high control accuracy and strong ability; the system runs stably and the operation is simple and convenient.
  • the present invention not only greatly improves the control effect of tower, loose coil and loose coil, but also The quality of the strip shape has also taken a step forward, especially for the rolling of extremely thick sheets and strips of 10mm.
  • the original technology and control methods have weak control capabilities for loose coils, loose coils, and tower coils. The thicker the thickness, the greater the difficulty and the less the ability, but this technology is more than enough. It shows that the new control method and implementation device proposed by the present invention can well meet the needs of cold-rolling pickling and unloading.
  • this program effectively controls the unloading core and loose roll problems caused by the ultra-thick pickling thickness and ultra-high strength.
  • the occurrence rate of abnormal coils caused by unloading is 0.1/ ⁇ , which fully meets the market’s requirements. need.
  • Figure 1 is a control flow chart of the present invention
  • Figure 2 is a diagram of the position of the device of the present invention installed on the reel;
  • Figure 3 is a schematic diagram of the arrangement of the device of the present invention.
  • Figure 4 is a partial enlarged schematic diagram of the device structure of the present invention.
  • Figure 5 is a partial enlarged schematic diagram of the connection of the push plate of the device of the present invention.
  • Figure 6 is a schematic diagram of the connection between the B-B push rod and the guide post of the device of the present invention.
  • Figure 7 is a schematic diagram of the rotation of the device I of the present invention.
  • FIG. 8 is a schematic diagram of the state of the winding control process of the present invention.
  • Figure 9 is a schematic diagram of the structure of the mounting base of the looper U-shaped roller in the present invention.
  • Fig. 10 is a schematic diagram of the structure of the sliding block of the device of the present invention.
  • Embodiment 1 Refer to Fig. 1, a control device for pushing steel without gaps.
  • the implementation device includes a guide column 1, an oil cylinder support 2, a push plate 3, a bakelite board 4, a locking plate 5, and a locking block 6 , Bolt 7, Slider 8, First Spring 9, Left Guide Plate 10, Spring Pressure Plate 11, Spring Guide Post 12, Right Guide Plate 13, Bolt 14, Arc End Surface 15, Support 16, Support Roll 17, Support Roll Bearing 18 , Bolts 19, spacer ring 20, bolts 21, liner 22, baffle 23 and screws 24, the slider 8 is fixed on the push plate 3 by 6 bolts 14, the first spring 9 is sleeved in the spring guide post 12 , The spring pressure plate 11 is connected with the left guide plate 10 and the right guide plate 13.
  • the spring pressure plate 11 is provided with a set of pressing against the first spring 9.
  • the sliding block 8 follows the guide column 1 to move forward and is arranged on the support
  • the supporting roller 17 on 16 is driven by the sliding block 8 to rotate, and the sliding block 8 is obliquely cut along the direction of the tangent point of the rotation of the supporting roller 17 and continuously extends until the arc-shaped end surface 15 of the bottom of the sliding block 8 and the reel 31 are under the action of the spring 9 Fits tightly.
  • the first spring ring has a pitch of 10.3mm and a total length of 190mm, which can be compressed into 3 segments, 59.2mm, 91.1mm, and 140.6mm, respectively, and the corresponding elastic force is 200N, 400N, and 500N.
  • the head of the slider is reversed to the rounded corners of R5, and the neck of the slider is reversed to the rounded corners of R10.
  • the radian of the bottom surface of the slider is R305
  • the oblique angle of the slider is 30°
  • the angle between the bottom surface of the slider and the horizontal line is 15°.
  • the control device also includes a pinch roller 25, a steering roller 26) a cylinder 27, a shrink guide plate 28, a set roll 29, a set of strip steel 30, a reel 31, a roll support roll 32, " ⁇ "-shaped member 33, looper U-shaped roller mounting seat 35, compression bolt 36, spring cavity 37 and second spring 38 are realized by improving the specific related equipment of the unit, including the deviation control of the uncoiler , The deviation control of the looper and the deviation control of the outlet section of the acid tank.
  • the deviation control of the uncoiler is the anti-wrinkle roller wear deviation control.
  • the supporting roller and the anti-wrinkle roller are composed of a roller system. During the unwinding process, the anti-wrinkle roller and the supporting roller rotate towards each other, closely fitting and uniform wear.
  • the number of the supporting rollers is 2 in one group, and bearing seats are arranged on both sides of the roller neck to facilitate gap adjustment and prevent roller jams.
  • a U-shaped looper roller mounting seat 35 is added. The depth and width of the installation groove in the middle of the base are designed to perfectly match the U-shaped seat, which can be adjusted freely to prevent tipping.
  • a thread-receiving hole is added through the side of the U-shaped seat to counteract the force of the strip steel during the correction adjustment of the idler roller and ensure the stable operation of the idler roller.
  • Each of the bottom left and right sides of the U-shaped seat is provided with a downwardly opening spring cavity 37.
  • a second spring 38 is installed in the spring cavity 37. Two ends of the second spring 38 are connected to the spring cavity respectively. The top and the installation slot are offset.
  • the self-correcting effect is achieved under the action of the two second springs 38.
  • the steering pinch rollers 25 and 26 with a certain self-correcting ability and a strong, fast-centering effect side guide centering mechanism are also set at the entrance of the coiler ,
  • the steering pinch roller adopts a convex, high roughness and self-correcting structure, which is characterized by a roughness of [Ra3-5] and a convex height of 1mm; the steering roller outlet is equipped with a set of control sleeves.
  • the pressure roller 29 acts as a micro-sleeve before the strip enters the jaws and is clamped to meet the centering effect of the strip (30) before coiling and the effect of inserting the jaws to ensure the initial coiling state There is a large included angle between the strip steel and the horizontal center line of the coiler, which is convenient for the introduction of the lead and facilitates the winding.
  • the coiling support roller 32 of the coiler is a support roller system composed of two sets of guide rollers; the guide roller bearing support block presents a two-sided symmetrical " ⁇ " structure, and the guide roller is fixed on the "by the pin structure through the frame support block" On the ⁇ "-shaped member 33, two sets of guide rollers can freely rotate along the pin shaft with the large circle diameter of the steel coil, and follow up in real time as the thrust of the hydraulic cylinder changes.
  • a control method for implementing gapless steel pushing includes the following steps:
  • Step 1 Uncoiling ⁇ centering control in the whole process of coiling machine
  • Step 2 Thread the belt through the steering roller at low speed, and the belt head is forced to bend downward and lead it downward.
  • Step 3 Follow the telescopic guide plate to the jaws of the reel of the coiler, and the sleeve measuring roller is pressed down to control the micro sleeve amount of the strip steel.
  • Step 4 Rotate the reel, lead the strip into the jaws
  • Step 5 The reel of the coiler is opened and the strip steel is successfully clamped by the jaws.
  • Step 6 Rotate the reel, curl the strip along the outer circumference of the reel,
  • Step 7 When the required length is reached, the reel stops and shrinks, and the push plate device moves forward.
  • Step 8 The push plate is infinitely close to the end face of the steel coil. During the walking process, the slider moves forward along the baffle along with the push plate. The spring continuously restores the elastic force to press down the entire push plate device to achieve a gapless close to the reel.
  • Step 9 The push plate device follows the action of the unloading trolley to realize the gapless push of the steel.
  • Step 10 The steel coil is unloaded, the push plate device is retracted, and the next coil is ready for unloading.
  • the 8+1 centering control mode is adopted.
  • the control mode includes 8 sets of CPC correction devices and 1 set of EPC edge patrol devices to strictly control the operation center of the strip and the center line of the unit.
  • Coincidence; 9#EPC edge patrol device accuracy is set to 1mm
  • 9#EPC control accuracy the original single piston rod is improved to an equal-diameter double-piston rod structure to balance the area difference between the rod end and the blind end.
  • the dynamic effect is better, and further, the 9#EPC action control is improved from the original cylinder displacement detection only to the servo valve spool position detection + cylinder position detection dual detection mode, which achieves a short response time, accurate measured data, and good detection effect. Purpose.
  • the step 1 is also realized by improving the specific related equipment of the unit, including the deviation control of the uncoiler, the deviation control of the looper, and the deviation control of the outlet section of the acid tank.
  • the deviation control of the uncoiler is the anti-wrinkle roller wear deviation control.
  • the method of adding support rollers is adopted to slow down the belt caused by large unilateral wear and uneven contact force caused by a single roller. Steel deviation problem.
  • the supporting roller and the anti-wrinkle roller are composed of a roller system. During the unwinding process, the anti-wrinkle roller and the supporting roller rotate toward each other, closely fitting, and uniformly abraded.
  • the number of the supporting rollers is 2 in one group, and bearing seats are arranged on both sides of the roller neck, which facilitates gap adjustment and prevents roller jams.
  • the roll diameter ratio of the steering roller and the pinch roller is 3:1; the belt threading speed is 5 m/min; the winding speed is 15 m/min after the winding machine is built.
  • the micro-sleeve amount of the controlled strip under the rolling reduction of the sleeve amount is the arc length L/COS10°, where L: the length of the guide plate.
  • the reel is rotated to an angle of 15° between the horizontal tangent to the same reel, and the angle is the best lead-in angle for the strip to be led into the jaws;
  • the low-speed 2 snare roll 29 is lifted, and the coiling assisting press roller and supporting roll 32 is pressed down; in the step 7, the push plate device advances, and the gap between the reel and the steel coil must be 15mm after shrinking , That is, the inner ring is circular and the reel is in the retracted state; the push plate device is arranged with four sets of automatic mechanical follow-up clamping devices along the circumference of the reel; there is a certain angle arrangement between each set of clamping devices,
  • the first device automatic mechanical follow-up clamping device 39-1 and the second automatic mechanical follow-up clamping device 39-2 include an angle of 60°
  • the included angle of the entry clamping device 39-3 is 90 degrees
  • the third automatic mechanical follow-up clamping device 39-3 and the fourth automatic mechanical follow-up clamping device 39-4 include an angle of 60°
  • the push plate device is actually used for different sizes of barrel diameters and sleeves of different increased diameter sizes, and the movement of the slider is used to control the change of the spring force, and the spring pressure will push the push plate tightly against the rolls of different sizes.
  • the outer circle of the barrel and the diameter-increasing sleeve is continuously adjusted accordingly.
  • the step 9 takes into account that weak vibration will be generated due to unbalanced load, in order to maintain stable operation and good balance.
  • the push plate device follows the entire unloading process.
  • the push plate device is provided with two symmetrical guiding stabilizers.
  • the device is driven by an oil cylinder.
  • the intermediate trunnion type structure is used for the oil cylinder of the device.
  • the expansion and contraction pressure of the reel adopts stepless pressure change, and an ideal pressure output value is determined according to the weight of the steel coil on site, and the purpose is to achieve the best tightening effect.
  • a method for controlling the core pulling, unwinding, and tower shape of the steel coil during unloading of the jaw structure reel is as follows: the belt passes through the steering roller 26 at a low speed, and the lead is forced to bend toward the pinch roller 25.
  • the set-up roller 29 presses down to control the strip micro-sleeve amount 30; rotate the drum 31, the strip steel 30 is led into the jaws; the coiler The reel 31 is opened, and the strip steel 30 is successfully clamped by the jaws; the reel 31 is rotated, and the strip is crimped along the outer circumference of the reel 31; when the required length is reached, the reel 31 stops and shrinks, and the plate pushing device advances ;
  • the low-speed 2 loop volume control set-up roller 29 is lifted, and the coiling assists the pressing roller and the supporting roller 32 to press down; the push plate device moves forward, and the gap between the coil and the steel coil must be 15mm after the coil is contracted, that is, the inner ring is Round and the reel is in the retracted state; the push plate device is arranged around the reel with exactly the same four sets of automatic mechanical follow-up clamping devices 1, 2, 3, 4, different sizes of barrel diameters and different
  • the spring pressure makes the push plate tightly abut on the outer circle of the different size reel and the diameter-increasing sleeve, and then steplessly adjusts it.
  • the push plate device ensures that the gap between the end faces of the steel coil is uniform, and the steel coil is pushed out synchronously with the unloading trolley under the thrust of the hydraulic cylinder.

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Abstract

一种实施无间隙推钢的控制装置，所述装置包括导柱（1）、油缸支座（2）、推板（3）、胶木板（4）、锁紧板（5）、锁紧块（6）、螺栓（7）、滑块（8）、第一弹簧（9）、左导板（10）、弹簧压板（11）、弹簧导柱（12）、右导板（13）、螺栓（14）、弧形端面（15）、支座（16）、支辊（17）、支辊轴承（18）、螺栓（19）、隔环（20）、螺栓（21）、衬板（22）、挡板（23）以及螺钉（24），该方案解决了10mm酸洗卸卷时极易产生的执行机构损坏，钢卷与卷筒摩擦造成抽芯、散卷的现象，在提升卸卷效果的同时，有效控制板带钢板质量，达到提高成材率的目的。

Description

一种实施无间隙推钢的控制装置和控制方法 技术领域
本发明涉及一种控制装置，具体涉及一种实施无间隙推钢的控制方法，属于冷轧设备技术领域。
背景技术
目前，国内外的酸洗机组卷取机普遍采用的带头进钳口式结构的卷取机，由于带钢厚度普遍较厚，Max达到10mm，强度大，具有不易折弯的特点，为了提升酸洗板卸卷后保证卷形，防止卸卷产生抽芯及散卷的控制技术大多是在卷取机的卷筒上方或者下方增加一组推杆机构，并以此来保证在卸卷动作之后的防治抽芯散卷出现的做法，尽管起到了钢卷外圆的整平效果，但其缺陷也很明显，为了保证板带钢被卷曲时卷形质量，首先要做到酸洗板材的对中，本机组除了采用了8组CPC纠偏和1组EPC巡边装置控制带钢的运行中心与机组中心线重合以外，并从上卷开始，既保证很好的破鳞效果、改善板形防止带钢产生腰折，又从卷取机的入口设置了中凸型结构且具备一定自纠偏能力的转向夹送辊以及较强的对中效果的侧导对中机构，以此来满足对板带钢在卷取时，不会产生较大的抽芯甚至散卷的情况，而一旦在卷取过程中产生相对的较大的超过3mm的溢出边的状态下，布置在卷筒上下侧的推杆机构容易使其造成折边，而在生产实际使用中也会遇见；还有，对卷取时产生的较小的溢出边，因卷筒滑块磨损产生间隙或者在卷层之间的不均匀摩擦力而导致在涨缩过程后并在卸卷过 程中钢卷会在卷筒横移方向上产生的层与层之间的相对移位进而出现塔形现象的发生，更有，推力不均造成卸卷小车上的托辊磨损严重，还经常伴随有毛刺造成酸洗过后的钢卷被刮伤进一步的导致表面质量缺陷。当钢卷塔形较大时，使得卸卷作业不能有效进行，且非常容易出现掉卷而砸坏设备的事故，从而造成长时间的停机抢修，进而导致生产连续性不足，严重制约了机组的产能，因而原有技术和设备无法满足现场工艺需求。
现有技术中也有相关的技术公开，经过中国专利检索CN201310704408.2公开了《带钢卷塔形消除装置及消除方法》，其通过设置一种导向机构，使得压盘在下压过程中，不会因为受力影响而产生倾斜，保证压力的均衡性，其结果只是延长了机构的使用寿命，他还进一步的利用传感器来检测带钢卷和压盘，从而能够进一步的控制钢卷的质量，实现钢卷塔形消除的自动化。此专利明显缺陷在于需要一套翻转的装置将钢卷旋转90°，才能操作，且对于溢出边较大的钢卷在操作过程中会出现折边，操作不便且易发生质量事故；还有，中国专利CN201510582199.8还公开了《带钢卷塔形全自动消除装置及其消除方法》，诸如此类的还有CN201110320086.2《一种控制钢卷内外圈塔形的操作方法》等,都是在卷取过程中所采用的一种措施，而在卷取结束后的抽芯造成的塔形控制效果不好，而对于冷轧这种对质量要求极高的场合明显不适合，对于生产成品的酸洗机组尤其不合适。
还有，中国专利201611105898.4《防止塔形卸卷的控制装置》， 是一种集支撑、跟随、稳定功能，并有效保证钢卷不会产生散卷的装置，能提升卸卷效果，同时控制板带钢板质量，达到提高成材率的目的。但此技术需要一套控制程序做基础，且装置采用气缸压紧方法，机组几条卸卷装置使用下来气缸的损坏率普遍较高，需要及时发现和定期更换，这些无形中增大的投入资本。因而，迫切需要一种能够全机械式的防散卷、散卷、塔型卷的装置，本发明在此基础上提出了不同于以上方法上的技术，因而公开技术所要解决的主要问题与本技术相似但技术方案与本技术不同。
发明内容
本发明正是针对现有技术中存在的问题，提供一种实施无间隙推钢的控制方法以及实现装置，主要解决现有技术存在的现场难以解决的技术问题，尤其解决了10mm酸洗卸卷时极易产生的执行机构损坏，钢卷与卷筒摩擦造成抽芯、散卷的现象，在提升卸卷效果的同时，有效控制板带钢板质量，达到提高成材率的目的。
为了实现上述目的，本发明的技术方案如下，一种实施无间隙推钢的控制装置，所述实现装置包括导柱、油缸支座、推板、胶木板、锁紧板、锁紧块、螺栓、滑块、第一弹簧、左导板、弹簧压板、弹簧导柱、右导板、螺栓、弧形端面、支座、支辊、支辊轴承、螺栓、隔环、螺栓、衬板、挡板以及螺钉，所述滑块通过6个螺栓固定在推板上，第一弹簧被套在弹簧导柱内，通过弹簧压板与左导板、右导板连接，弹簧压板设置有一组压靠第一弹簧，在导柱前进的状态下，滑块 跟随导柱前进，设置在支座上的支辊被滑块带动旋转，滑块斜切沿着支辊转动的切点方向上不断延伸，直到滑块底部弧形端面与卷筒在第一弹簧作用下紧密贴合。在前一块带钢卷取完成前，需要根据所要剪切的吨位数计算出剪切点位置，此时带钢被剪切，待卷取机将前一块带钢卷取完成后，下一块需要卷取的带钢在沿着收缩导板抵达卷取机卷筒，此时为了保证带头顺利导入钳口，在油缸作用下，起套辊将平直带钢转换为起套的带钢，以15度角将带头导入钳口内并被夹紧。低速转动，伸缩导板缩回，油缸将套辊抬起，起套的带钢被拉直，助卷支承辊在油缸作用下贴紧卷筒上的带钢。
为了保证弹簧的高效性能，所述第一弹簧设置为：总圈数N1＝20，其中有效圈数为18，右旋、展开长度L＝1771mm，经过调质处理后硬度达到45，且必须做消除应力处理，弹簧倔强系数K＝2。
进一步的，第一弹簧环间节距10.3mm，总长190mm，可被压缩分为3段，分别为59.2mm、91.1mm、140.6mm，所对应的弹力为200N、400N、500N。
所述滑块装置，滑块头部倒R5的圆角，滑块颈部倒R10的圆角。滑块底面弧度R305，滑块斜切角度30°，滑块底面与水平线夹角15°。
作为本发明的一种改进，所述控制装置还包括夹送辊、转向辊、油缸、伸缩导板、起套辊、起套的带钢、卷筒、助卷支承辊、“∽”型构件，卷取机的入口还设置了且具备一定自纠偏能力的转向夹送辊，转向辊出口设置了一组控制套量的压辊，所述卷取机助卷支承辊 为两组导辊组成的支撑辊系；导辊承载支撑块呈现两侧对称的“∽”型结构，导辊被销轴结构通过框架支撑块固定在“∽”型构件上，两组导辊沿着销轴随着钢卷的大圆径自由转动，随着液压缸的推力改变实时跟进。
作为本发明的一种改进，所述控制装置还包括活套U型托辊安装座、压紧螺栓、弹簧腔以及第二弹簧，所述底座中间安装槽深度及宽度设计与U型座配合，自由调节，可防倾倒，通过U型座侧面增加了顶丝孔，抵消托辊纠偏调整时带钢方向受力，保障托辊稳定运行；所述U型座的底部左、右两侧各设有一个向下开口的弹簧腔，所述弹簧腔内安装有第二弹簧，所述第二弹簧的两端分别与弹簧腔的顶部、安装槽相抵。随着带钢跑偏时托辊两侧受力有偏差，U型座在带钢的压力下预紧弹簧，托辊倾斜时，带钢在托辊上的张力产生变化，在两个第二弹簧的作用下达到自纠偏效果。
一种实施无间隙推钢的控制方法，所述方法包括以下步骤：
步骤1：开卷→卷取机全过程对中控制，
步骤2：低速穿带过转向辊，带头被强制弯曲向下导入，
步骤3：沿伸缩导板抵达卷取机卷筒钳口，套量辊压下控制带钢起微套量，
步骤4：旋转卷筒，带钢导入钳口，
步骤5：卷取机卷筒张开、板带钢被钳口成功夹紧，
步骤6：旋转卷筒，将带钢沿卷筒外圆周卷曲，
步骤7：达到所需长度，卷筒停转、收缩，推板装置前进，
步骤8：推板无限接近钢卷端面，行走过程中滑块随推板向前不断沿挡板下移，弹簧不断恢复弹力使整个推板装置下压、实现无间隙贴紧卷筒，
步骤9：推板装置跟随卸卷小车动作，实现无间隙推钢，
步骤10：钢卷卸出、推板装置缩回，准备下一卷的卸卷。
作为本发明的一种改进，所述步骤1，为了保证带钢对中效果，采用8+1对中控制模式，控制模式包括有8套CPC纠偏装置和1套EPC巡边装置来严格控制带钢的运行中心与机组中心线重合；9#EPC巡边装置精度设置在1mm，为了确保9#EPC控制精度，将原有的单活塞杆改进为等径双活塞杆结构，以此来平衡杆端和盲端的面积差，随动效果更好，进一步的，9#EPC动作控制由原先的仅油缸位移检测，改进为伺服阀阀芯位置检测+油缸位置检测双检测模式，达到响应时间短，实测数据准，检测效果佳的目的。
所述步骤1中还通过对机组具体的相关设备改进来实现，包括有开卷机的跑偏控制、活套的跑偏控制以及酸槽出口段的跑偏控制。
所述开卷机的跑偏控制为防皱辊磨损跑偏控制，通过对防皱辊本体结构改进，采用增加支撑辊的方式，减缓单辊导致的单边磨损大、接触力不均引发的带钢跑偏问题。
支承辊与防皱辊组成的辊系，开卷过程中防皱辊与支承辊相向旋转，紧密贴合，磨损一致。所述支承辊数量为1组2根，辊颈两侧都设置有轴承座，便于间隙调整，杜绝卡辊。
作为本发明的一种改进，所述步骤2中转向辊与夹送辊的辊径比 为3：1；所述穿带速度5米/分钟；卷取机建张后建张速度15米/分钟。
作为本发明的一种改进，所述步骤3中套量辊压下控制带钢起微套量为弧长L/COS10°，其中L为导板台长度。
作为本发明的一种改进，所述步骤4中旋转卷筒到同卷筒水平切线夹角15°，所述角度为带钢被导入钳口的最佳导入角度。
作为本发明的一种改进，所述步骤6中低速2圈套量辊抬起，卷取协助压辊助卷支承辊压下；所述步骤7，推板装置前进，卷筒收缩后与钢卷之间必须在15mm间隙，也就是内圈为圆形且卷筒处于缩回状态；推板装置沿卷筒四周布置有四套自动机械式跟进夹紧装置；每套夹紧装置之间存在一定的夹角布置，第一装置自动机械式跟进夹紧装置(39-1)和第二自动机械式跟进夹紧装置(39-2)夹角60°，第二自动机械式跟进夹紧装置和第三自动机械式跟进夹紧装置(39-3)夹角90度，第三自动机械式跟进夹紧装置(39-3)与第四自动机械式跟进夹紧装置(39-4)夹角60°，第一、四自动机械式跟进夹紧装置；第二、三自动机械式跟进夹紧装置沿卷筒外圆周方向上对称分布。
作为本发明的一种改进，所述步骤8中推板装置实用于不同尺寸的筒径以及不同增径尺寸的套筒，利用滑块的移动达到控制弹簧弹力的变化，弹簧压力将推板紧紧贴靠在不同尺寸的卷筒以及增径套筒的外圆上，并随之无级调整。所述步骤9考虑到会因载重不平衡而产生微弱的振动，为了保持运转稳定、平衡性好。在卸卷的同时，推板装 置跟随整个的卸卷过程，所述的推板装置设置有两根对称的导向稳定杆，所述的装置由油缸驱动，中间耳轴式结构，装置的油缸由随动阀控制，卷筒涨缩采压力采用无极变压，根据现场的钢卷重量来确定一个较为理想的压力输出值，其目的在于最佳的涨紧效果。
相对于现有技术，本发明具有如下优点，1)该技术方案控制精度高，能力强；系统运行稳定，操作运行简便，本发明不仅在塔形、散卷、松卷控制效果上大大提高，板形质量上也更上一个台阶,特别是对10mm的极厚规格的板带钢轧制,原有技术和控制方法，对于松卷、散卷、塔形卷的控制能力是很薄弱的，厚度越厚，难度越大，能力越欠缺，而本技术则绰绰有余。表明本发明提出的新的控制方法和实施装置能很好的适应冷轧酸洗卸卷的需求，2)带钢外表面质量提高的同时，还杜绝了折边的现象；基本杜绝了松卷、散卷以及塔形卷的的出现；3)该方案摒弃了原有技术的汽缸等执行机构控制部分，节约了成本；4)可以在同类型系统上全部或大部分使用；预期年直接经济效益100万元以上；市场决定品质、品质来源于设备的功能的完善、精度的提升，梅钢1420酸洗机组主要定位生产极厚8.0mm厚度，为了获得高质量的产品，先后经过多次改造，该方案在实验阶段，有效控制酸洗厚度超厚、强度超高所造成的卸卷抽芯、松散卷问题的产生，卸卷产生的异常卷的发生率为0.1/‰，完全满足市场的需要。
附图说明
图1为本发明的控制流程图；
图2为本发明装置安装在卷筒上的位置图；
图3为本发明装置布置示意图；
图4为本发明装置结构局部放大示意图；
图5为本发明装置的推板块连接局部放大示意图；
图6为本发明装置的B-B推杆与导柱连接示意图；
图7为本发明装置I处旋转示意图；
图8为本发明卷取控制流程状态示意图；
图9为本发明活套U型托辊安装座结构示意图；
图10为本发明装置滑块结构示意图。
其中：1-导柱；2-油缸支座；3-推板；4-胶木板；5-锁紧板；6-锁紧块；7-螺栓；8-滑块；9-第一弹簧；10-做导板；11-弹簧压板；12-弹簧导柱；13-右导板；14-螺栓；15-弧形端面；16-支座；17-支辊；18-支辊轴承；19-螺栓；20-隔环；21-螺栓；22-衬板；23-挡板；24-螺钉；25-夹送辊；26-转向辊；27-油缸；28-收缩导板；29-起套辊；30-起套的带钢；31-卷筒；32-助卷支承辊；33-“∽”型构件；34-助卷油缸；35-活套U型托辊安装座；36-压紧螺栓；37-弹簧腔；38-第二弹簧；39-1、第一自动机械式跟进夹紧装置；39-2、第二自动机械式跟进夹紧装置，39-3、第三自动机械式跟进夹紧装置；39-4、第四自动机械式跟进夹紧装置。
具体实施方式
为了加深对本发明的理解，下面结合附图对本实施例做详细的说 明。
实施例1：参见图1，一种实施无间隙推钢的控制装置，所述实现装置包括导柱1、油缸支座2、推板3、胶木板4、锁紧板5、锁紧块6、螺栓7、滑块8、第一弹簧9、左导板10、弹簧压板11、弹簧导柱12、右导板13、螺栓14、弧形端面15、支座16、支辊17、支辊轴承18、螺栓19、隔环20、螺栓21、衬板22、挡板23以及螺钉24，所述滑块8通过6个螺栓14固定在推板3上，第一弹簧9被套在弹簧导柱12内，通过弹簧压板11与左导板10、右导板13连接，弹簧压板11设置有一组压靠第一弹簧9，在导柱1前进的状态下，滑块8跟随导柱1前进，设置在支座16上的支辊17被滑块8带动旋转，滑块8斜切沿着支辊17转动的切点方向上不断延伸，直到滑块8底部弧形端面15与卷筒31在弹簧9作用下紧密贴合。
为了保证弹簧的高效性能，所述第一弹簧9总圈数N1＝20，其中有效圈数为18，右旋、展开长度L＝1771mm，经过调质处理后(洛氏)硬度达到45，且必须做消除应力处理，弹簧倔强系数K＝2。
进一步的，第一弹簧环间节距10.3mm，总长190mm，可被压缩分为3段，分别为59.2mm、91.1mm、140.6mm，所对应的弹力为200N、400N、500N。
所述滑块8装置，滑块头部倒R5的圆角，滑块颈部倒R10的圆角。滑块底面弧度R305，滑块斜切角度30°，滑块底面与水平线夹角15°。
参见图8、9，所述控制装置还包括夹送辊25、转向辊26)油缸 27、收缩导板28、起套辊29、起套的带钢30、卷筒31、助卷支承辊32、“∽”型构件33，活套U型托辊安装座35、压紧螺栓36、弹簧腔37以及第二弹簧38，通过对机组具体的相关设备改进来实现，包括有开卷机的跑偏控制、活套的跑偏控制以及酸槽出口段的跑偏控制。所述开卷机的跑偏控制为防皱辊磨损跑偏控制，通过对防皱辊本体结构改进，采用增加支撑辊的方式，减缓单辊导致的单边磨损大、接触力不均引发的带钢跑偏问题。支承辊与防皱辊组成的辊系，开卷过程中防皱辊与支承辊相向旋转，紧密贴合，磨损一致。所述支承辊数量为1组2根，辊颈两侧都设置有轴承座，便于间隙调整，杜绝卡辊。所述的活套的跑偏控制，增设了一种U型活套托辊安装座35，底座中间安装槽深度及宽度设计与U型座完美配合，自由调节，可防倾倒。其特征为，通过U型座侧面增加了顶丝孔，抵消托辊纠偏调整时带钢方向受力，保障托辊稳定运行。所述U型座的底部左、右两侧各设有一个向下开口的弹簧腔37，所述弹簧腔37内安装有第二弹簧38，所述第二弹簧38的两端分别与弹簧腔的顶部、安装槽相抵。随着带钢跑偏时托辊两侧受力有偏差，U型座35在带钢的压力下预紧第二弹簧38，托辊倾斜时，带钢在托辊上的张力产生变化，在两个第二弹簧38的作用下达到自纠偏效果。所述的酸槽出口段的跑偏控制，在卷取机的入口还设置了且具备一定自纠偏能力的转向夹送辊25、26以及较强的、快速对中效果的侧导对中机构，所述转向夹送辊采用中凸型、高粗糙度且具备自纠偏的结构，其特征为粗糙度在【Ra3-5】，中凸高度1mm；转向辊出口设置了一组控制套量的压辊 29，待带钢进入钳口被夹紧前的起微套作用，以此来满足对板带钢(30)在卷取前的对中效果以及插入钳口效果，确保初始卷取状态下，带钢与卷取机水平中心线存在一个较大的夹角，便于带头的导入、便于助卷；卷取过程中，依靠卷取机出口侧的助卷支承辊32控制贴紧基数，所述卷取机助卷支承辊32为两组导辊组成的支撑辊系；导辊承载支撑块呈现两侧对称的“∽”型结构，导辊被销轴结构通过框架支撑块固定在“∽”型构件33上，两组导辊可以沿着销轴随着钢卷的大圆径自由转动，也会随着液压缸的推力改变实时跟进。
工作过程：参照图1—图10，一种实施无间隙推钢的控制方法，所述方法包括以下步骤：
步骤1：开卷→卷取机全过程对中控制，
步骤2：低速穿带过转向辊，带头被强制弯曲向下导入，
步骤3：沿伸缩导板抵达卷取机卷筒钳口，套量辊压下控制带钢起微套量，
步骤4：旋转卷筒，带钢导入钳口，
步骤5：卷取机卷筒张开、板带钢被钳口成功夹紧，
步骤6：:旋转卷筒，将带钢沿卷筒外圆周卷曲，
步骤7：:达到所需长度，卷筒停转、收缩，推板装置前进，
步骤8：:推板无限接近钢卷端面，行走过程中滑块随推板向前不断沿挡板下移，弹簧不断恢复弹力是整个推板装置下压、实现无间隙贴紧卷筒，
步骤9：推板装置跟随卸卷小车动作，实现无间隙推钢，
步骤10：钢卷卸出、推板装置缩回，准备下一卷的卸卷。
所述步骤1，为了保证带钢对中效果，采用8+1对中控制模式，控制模式包括有8套CPC纠偏装置和1套EPC巡边装置来严格控制带钢的运行中心与机组中心线重合；9#EPC巡边装置精度设置在1mm，为了确保9#EPC控制精度，将原有的单活塞杆改进为等径双活塞杆结构，以此来平衡杆端和盲端的面积差，随动效果更好，进一步的，9#EPC动作控制由原先的仅油缸位移检测，改进为伺服阀阀芯位置检测+油缸位置检测双检测模式，达到响应时间短，实测数据准，检测效果佳的目的。
所述步骤1，还通过对机组具体的相关设备改进来实现，包括有开卷机的跑偏控制、活套的跑偏控制以及酸槽出口段的跑偏控制。
所述开卷机的跑偏控制为防皱辊磨损跑偏控制，通过对防皱辊本体结构改进，采用增加支撑辊的方式，减缓单辊导致的单边磨损大、接触力不均引发的带钢跑偏问题。
支承辊与防皱辊组成的辊系，开卷过程中防皱辊与支承辊相向旋转，紧密贴合，磨损一致。所述支承辊数量为1组2根，辊颈两侧都设置有轴承座，便于间隙调整，杜绝卡辊。
所述步骤2，所述转向辊与夹送辊的辊径比为3：1；所述穿带速度5米/分钟；卷取机建张后建张速度15米/分钟。
所述步骤3中套量辊压下控制带钢起微套量为弧长L/COS10°，其中L:导板台长度。
所述步骤4中旋转卷筒到同卷筒水平切线夹角15°，所述角度 为带钢被导入钳口的最佳导入角度；
所述步骤6中低速2圈套量辊29抬起，卷取协助压辊助卷支承辊32压下；所述步骤7，推板装置前进，卷筒收缩后与钢卷之间必须在15mm间隙，也就是内圈为圆形且卷筒处于缩回状态；推板装置沿卷筒四周布置有四套自动机械式跟进夹紧装置；每套夹紧装置之间存在一定的夹角布置，第一装置自动机械式跟进夹紧装置39-1和第二自动机械式跟进夹紧装置39-2夹角60°，第二自动机械式跟进夹紧装置和第三自动机械式跟进夹紧装置39-3夹角90度，第三自动机械式跟进夹紧装置39-3与第四自动机械式跟进夹紧装置39-4夹角60°，第一、四自动机械式跟进夹紧装置；第二、三自动机械式跟进夹紧装置沿卷筒外圆周方向上对称分布。
所述步骤8中推板装置实用于不同尺寸的筒径以及不同增径尺寸的套筒，利用滑块的移动达到控制弹簧弹力的变化，弹簧压力将推板紧紧贴靠在不同尺寸的卷筒以及增径套筒的外圆上，并随之无级调整。所述步骤9考虑到会因载重不平衡而产生微弱的振动，为了保持运转稳定、平衡性好。在卸卷的同时，推板装置跟随整个的卸卷过程，所述的推板装置设置有两根对称的导向稳定杆，所述的装置由油缸驱动，中间耳轴式结构，装置的油缸由随动阀控制，卷筒涨缩采压力采用无极变压，根据现场的钢卷重量来确定一个较为理想的压力输出值，其目的在于最佳的涨紧效果。
参见图8，一种钳口结构卷筒在卸卷时控制产生钢卷抽芯、散卷、塔形的方法工作过程如下：低速穿带过转向辊26，带头被夹送辊25 强制弯曲向下导入伸缩导板28；沿伸缩导板28抵达卷取机卷筒31钳口，起套辊29压下控制带钢起微套量30；旋转卷筒31，带钢30导入钳口；卷取机卷筒31张开、板带钢30被钳口成功夹紧；旋转卷筒31，将带钢沿卷筒31外圆周卷曲；达到所需长度，卷筒31停转、收缩，推板装置前进；低速2圈套量控制起套辊29抬起，卷取协助压辊助卷支承辊32压下；推板装置前进，卷筒收缩后与钢卷之间必须在15mm间隙，也就是内圈为圆形且卷筒处于缩回状态；推板装置沿卷筒四周布置有完全一样的1、2、3、4共四套自动机械式跟进夹紧装置，不同尺寸的筒径以及不同增径尺寸的套筒，利用滑块的移动达到控制弹簧弹力的变化，弹簧压力将推板紧紧贴靠在不同尺寸的卷筒以及增径套筒的外圆上，并随之无级调整。推板装置保证钢卷端面的间隙均匀，在液压缸的推力作用下同卸卷小车同步将钢卷推出。
需要说明的是上述实施例，并非用来限定本发明的保护范围，在上述技术方案的基础上所作出的等同变换或替代均落入本发明权利要求所保护的范围。

Claims (10)

  1. 一种实施无间隙推钢的控制装置，其特征在于，所述装置包括导柱(1)、油缸支座(2)、推板(3)、胶木板(4)、锁紧板(5)、锁紧块(6)、螺栓(7)、滑块(8)、第一弹簧(9)、左导板(10)、弹簧压板(11)、弹簧导柱(12)、右导板(13)、螺栓(14)、弧形端面(15)、支座(16)、支辊(17)、支辊轴承(18)、螺栓(19)、隔环(20)、螺栓(21)、衬板(22)、挡板(23)以及螺钉(24)，所述滑块(8)通过螺栓(14)固定在推板(3)上，所述第一弹簧(9)被套在弹簧导柱(12)内，通过弹簧压板(11)与左导板(10)、右导板(13)连接，弹簧压板(11)设置有一组压靠第一弹簧(9)，在导柱(1)前进的状态下，滑块(8)跟随导柱(1)前进，设置在支座(16)上的支辊(17)被滑块(8)带动旋转，滑块(8)斜切沿着支辊(17)转动的切点方向上不断延伸，直到滑块(8)底部弧形端面(15)与卷筒(31)在弹簧(9)作用下紧密贴合。
  2. 根据权利要求1所述的实施无间隙推钢的控制装置，其特征在于，所述控制装置还包括夹送辊(25)、转向辊(26)、油缸(27)、收缩导板(28)、起套辊(29)、起套的带钢(30)、卷筒(31)、助卷支承辊(32)以及“∽”型构件(33)，卷取机的入口还设置有具备自纠偏能力的转向夹送辊(25)、(26)，转向辊出口设置了一组控制套量的压辊(29)，所述卷取机助卷支承辊(32)为两组导辊组成的支撑辊系；导辊承载支撑块呈现两侧对称的“∽”型结构，导辊被销轴结构通过框架支撑块固定在“∽”型构件(33)上，两组导辊 沿着销轴随着钢卷的卷径增大自由转动，随着液压缸的推力改变实时跟进。
  3. 根据权利要求2所述的实施无间隙推钢的控制装置，其特征在于，所述控制装置还包括活套U型托辊安装座(35)、压紧螺栓(36)、弹簧腔(37)以及第二弹簧(38)，所述底座中间安装槽深度及宽度设计与U型座配合，自由调节，通过U型座侧面增加顶丝孔，抵消托辊纠偏调整时带钢方向受力，所述U型座的底部左、右两侧各设有一个向下开口的弹簧腔(37)，所述弹簧腔(37)内安装有第二弹簧(38)，所述第二弹簧(38)的两端分别与弹簧腔的顶部、安装槽相抵。
  4. 采用权利要求1-3任意一项控制装置实施无间隙推钢的控制方法，其特征在于，所述方法包括以下步骤：
    步骤1：开卷→卷取机全过程对中控制，
    步骤2：低速穿带过转向辊，带头被强制弯曲向下导入，
    步骤3：沿伸缩导板抵达卷取机卷筒钳口，套量辊压下控制带钢起微套量，
    步骤4：旋转卷筒，带钢导入钳口，
    步骤5：卷取机卷筒张开、板带钢被钳口成功夹紧，
    步骤6：旋转卷筒，将带钢沿卷筒外圆周卷曲，
    步骤7：达到所需长度，卷筒停转、收缩，推板装置前进，
    步骤8：推板无限接近钢卷端面，行走过程中滑块随推板向前不断沿挡板下移，弹簧不断恢复弹力使整个推板装置下压、实现无间隙贴紧卷筒，
    步骤9：推板装置跟随卸卷小车动作，实现无间隙推钢，
    步骤10：钢卷卸出、推板装置缩回，准备下一卷的卸卷。
  5. 根据权利要求4所述的实施无间隙推钢的控制方法，其特征在于，所述步骤1，为了保证带钢对中效果，采用8+1对中控制模式，控制模式包括有8套CPC纠偏装置和1套EPC巡边装置来严格控制带钢的运行中心与机组中心线重合；EPC巡边装置精度设置在1mm。
  6. 根据权利要求5所述的实施无间隙推钢的控制方法，其特征在于，所述步骤2中转向辊与夹送辊的辊径比为3：1；穿带速度5米/分钟；卷取机建张后建张速度15米/分钟。
  7. 根据权利要求6所述的实施无间隙推钢的控制方法，其特征在于，所述步骤3中套量辊压下控制带钢起微套量为弧长L/COS10°，其中L为导板台长度。
  8. 根据权利要求7所述的实施无间隙推钢的控制方法，其特征在于，所述步骤4中旋转卷筒到同卷筒水平切线夹角15°。
  9. 根据权利要求8所述的实施无间隙推钢的控制方法，其特征在于，所述步骤6中低速2圈套量辊(29)抬起，卷取协助压辊助卷支承辊(32)压下；所述步骤7，推板装置前进，卷筒收缩后与钢卷之间必须在15mm间隙，也就是内圈为圆形且卷筒处于缩回状态；推板装置沿卷筒四周布置有四套自动机械式跟进夹紧装置；每套夹紧装置之间存在一定的夹角布置，第一装置自动机械式跟进夹紧装置(39-1)和第二自动机械式跟进夹紧装置(39-2)夹角60°，第二自动机械式跟进夹紧装置和第三自动机械式跟进夹紧装置(39-3)夹角90度， 第三自动机械式跟进夹紧装置(39-3)与第四自动机械式跟进夹紧装置(39-4)夹角60°，第一、四自动机械式跟进夹紧装置；第二、三自动机械式跟进夹紧装置沿卷筒外圆周方向上对称分布。
  10. 根据权利要求6所述的实施无间隙推钢的控制方法，其特征在于，所述步骤9的推板装置设置有两根对称的导向稳定杆，推板装置由油缸驱动，中间耳轴式结构，推板装置的油缸由随动阀控制，卷筒涨缩压力采用无极变压。
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