CN110744118A - Shearing device for staggered-edge rolls of oriented silicon steel and control method - Google Patents
Shearing device for staggered-edge rolls of oriented silicon steel and control method Download PDFInfo
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- CN110744118A CN110744118A CN201810820084.1A CN201810820084A CN110744118A CN 110744118 A CN110744118 A CN 110744118A CN 201810820084 A CN201810820084 A CN 201810820084A CN 110744118 A CN110744118 A CN 110744118A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D19/00—Shearing machines or shearing devices cutting by rotary discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
- B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
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Abstract
The invention discloses an oriented silicon steel staggered edge coil shearing device which comprises a steel coil, an inlet uncoiler, an inlet braking device, an inlet steering roller, an inlet shear, a circle shear, an outer diameter detector, a front photoelectric detection device, a small-roller-diameter three-roller floating device and a rear photoelectric detection device, wherein the steel coil is arranged on the inlet uncoiler; the inlet steering roller is connected with the inlet shear, and a small-roller-diameter three-roller floating device and a rear photoelectric detection device are sequentially arranged between the inlet shear and the circle shear. The invention keeps the center position of the machine set in the uncoiling and shearing processes of the machine set by the misalignment coil, effectively eliminates the defect of shearing sickle bay caused by the misalignment coil when strip steel passes through the shearing area, and improves the shearing longitudinal width and the unequal edge cutting precision of the strip steel.
Description
Technical Field
The invention relates to the technical field of alignment control in production of oriented silicon steel staggered coil, in particular to an oriented silicon steel staggered coil shearing device and a control method.
Background
Due to the oriented silicon steel and the unique production process, after long-time heat treatment in a high-temperature annular furnace, the edge part can generate large elephant foot type defects, and when the edge part is coiled again by a hot stretching continuous annealing unit, the product has to be coiled into a staggered coil shape (shown in figure 1) due to the large elephant foot defects. Otherwise, the edge part may be cracked during the winding process, and the winding may not be performed. After the edge-rolled coil product enters a finishing unit, the edge-rolled coil product cannot be subjected to shearing production after simple treatment of finishing equipment like the original cold-rolled product.
The patent CN201210245825.0 discloses a strip steel deviation rectifying method, which comprises the steps of firstly detecting the deviation of strip steel by a strip steel deviation automatic induction device, and outputting a deviation signal to a control system after detecting the deviation of the strip steel; secondly, after receiving the deviation signal, the control system controls the drying roller to lift up and carries out deviation correction through the deviation correcting roller; and finally, after the deviation correction of the strip steel is finished, the control system controls the squeezing roller to press down. When the strip steel deviates, the deviation of the strip steel can be gradually and stably corrected, and the accidents of edge scraping and strip breakage of the strip steel in the cleaning tank are avoided.
Patent CN200610023411.8 relates to a method and device for correcting the deviation of strip steel. A strip steel deviation rectifying method is characterized in that strip steel moves close to a cylindrical roller at a certain wrap angle, the cylindrical roller consists of an inner cylindrical roller and an outer cylindrical roller which are coaxial, the outer cylindrical roller is a hollow cylindrical roller made of a non-magnetic-conducting material, the inner cylindrical roller is a cylindrical roller capable of generating a spiral magnetic field, the spiral magnetic field generates magnetic acting force on the strip steel, the strip steel moves to one side by the axial magnetic acting component force, the rotating speed direction of the inner cylindrical roller is adjusted to change the direction of the spiral magnetic field, and deviation rectification of the strip steel is achieved. The invention has simple structure, does not need a hydraulic actuating mechanism, has small space size and high deviation correction response speed, can automatically control the rotating speed of the motor on line to change the deviation correction force of the spiral magnet, and improves the deviation correction precision and the deviation correction quality.
Patent CN201410033280.6 discloses a deviation rectifying method and system for hot rolled strip steel, the method controls the advance action of a first side guide plate (namely an operation side guide plate or a transmission side guide plate) under the rolling condition of a finishing mill when the strip steel to be rolled reaches a preset position (at the moment, the strip steel to be rolled does not enter the finishing mill), and the actions of the first side guide plate and the second side guide plate are adjusted according to the rolling condition of the strip steel to be rolled by the finishing mill, thereby leading the first side guide plate and the second side guide plate to fully play the roles of clamping, guiding and centering the strip steel, improving the continuous replacement of the first side guide plate due to long-term abrasion when the strip steel to be rolled is attached to the first side guide plate of the finishing mill and enters the finishing mill, therefore, the equipment cost is improved, and meanwhile, the quality of the strip steel to be rolled is influenced due to the friction between the strip steel to be rolled and the first side guide plate, and even the production efficiency is seriously influenced due to steel piling.
Patent CN201120534358.4 discloses a belted steel deviation correcting device in continuous galvanizing line, relates to the belted steel deviation correcting device in the continuous galvanizing line, by base, middle part braced frame, install first roller and the second roller on middle part braced frame and establish the actuating cylinder between base and middle part braced frame and establish the guiding mechanism that rectifies at four corners and constitute, its characteristics are: the base is arranged at a position parallel to the conveying direction of the strip steel, and the first roller is higher than the second roller in spatial position. The utility model discloses a go up deviation correcting device, make the belted steel of following the pickling process output tangent with the upper portion of first roller, then after bypassing first roller and second roller, follow the lower part syntropy output of second roller. Because the deviation rectifying adjusting plane of the deviation rectifying device is always parallel to the plane formed in the strip steel conveying process, the strip steel is ensured to be completely contacted with the roller along the width direction during deviation rectifying, thereby increasing the friction force of the roller on the strip steel and improving the deviation rectifying performance.
The patent mainly relates to a deviation correcting device, which is steel coil deviation correcting and centering equipment for producing general edge-aligning coiling. Due to the existence of edge rubbing coiling, when the edge rubbing coiled steel coil is produced by a finishing machine set, the defect of a shearing sickle bay is easily caused by the reason of the staggered edge coiling. The existing production technology can not meet the requirement of inlet staggered edge roll production, and particularly, the sickle bend defect can only be guaranteed within +2mm, so that the use of the finished oriented silicon steel product by a user is influenced.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an oriented silicon steel misalignment coil shearing device and a control method thereof.
(II) technical scheme
A shearing device for an oriented silicon steel staggered edge coil comprises a steel coil, an inlet uncoiler, an inlet braking device, an inlet steering roller, an inlet shear and a circle shear, and further comprises an outer diameter detector, a front photoelectric detection device, a small-roller-diameter three-roller floating device and a rear photoelectric detection device, wherein the steel coil is arranged on the inlet uncoiler, the outer diameter detector is arranged on the outer side of the steel coil, the front photoelectric detection device is arranged in front of the inlet braking device, and the front photoelectric detection device is arranged between the inlet steering roller and the steel coil; the inlet steering roller is connected with the inlet shear, and a small-roller-diameter three-roller floating device and a rear photoelectric detection device are sequentially arranged between the inlet shear and the circle shear.
According to one embodiment of the invention, the front photoelectric detection device is always vertical to the strip steel positioned at the inlet uncoiler.
According to one embodiment of the invention, the small-roll-diameter three-roll floating device comprises an equipment rack, an adjusting hydraulic cylinder, a small-roll-diameter three-roll and a centering floating hydraulic cylinder; the adjusting hydraulic cylinder is arranged on the equipment frame and is pneumatically connected with the small-roll-diameter three-roll and the centering floating hydraulic cylinder.
According to one embodiment of the invention, the roll diameter of the three small-diameter rolls is 100mm-150 mm.
A shear control method for an oriented silicon steel staggered edge coil comprises the following steps:
s1, normally producing the steel coil material;
s2, the entrance outer diameter detector works to transmit the real-time outer diameter of the steel coil into the PLC control system;
s3, the front photoelectric detection device automatically and vertically runs the strip steel according to the measured outer diameter through a formula;
s4, weakening the reaction precision of the front photoelectric detection device;
s5, leading the strip steel to enter a small-roller-diameter three-roller floating device from an inlet steering roller through a guide plate table;
s6, feeding back centering data by a rear photoelectric detection device through high-sensitivity measurement;
s7, quickly centering the strip steel by using a small-roll-diameter three-roll floating device;
and S8, cutting the strip steel in the centering steel strip by a disc shear to finish edge cutting and coiling.
(III) advantageous effects
By adopting the technical scheme of the invention, the shearing device and the control method for the oriented silicon steel misalignment coil are characterized in that a group of small-roll-diameter floating three-roll floating devices are matched with a front photoelectric detection device and a rear photoelectric detection device, the misalignment coil is kept at the center position of a machine set in the uncoiling and shearing processes of the machine set, when strip steel passes through a shearing area, the defect of a shearing sickle bay caused by the misalignment coil is effectively eliminated, and the shearing longitudinal width and the trimming precision of unequal sides of the strip steel are improved. Has the following effects:
1) an inlet of the uncoiler is provided with an outer diameter detector, the angle is adjusted through real-time measurement data of the outer diameter of the uncoiler, and the preposed photoelectric detection device is vertical to the strip steel through rotation along with the reduction of the outer diameter of a steel coil of the uncoiler;
2) the small-roll-diameter three-roll floating device is different from other centering devices in that the small-roll-diameter three-roll floating device is small in size, flexible in movement, convenient to quickly center, more suitable for centering with high centering precision requirement, and capable of meeting the centering requirements of high speed, short distance and high precision;
3) the reaction precision of the preposed photoelectric detection device is weakened, and the main purpose is to judge the deviation rectifying trend of the misalignment coil on the uncoiler by the preposed photoelectric detection device and a PLC control program;
4) the reaction precision of the rear photoelectric detection device is improved, and the small-roll-diameter three-roll floating device quickly completes the centering of the strip steel, so that the strip steel entering the disc shear is ensured to be centered.
Drawings
In the present invention, like reference numerals refer to like features throughout, wherein:
FIG. 1 is a cross-sectional view of a misalignment wrap;
FIG. 2 is a schematic diagram of the apparatus of the present invention;
FIG. 3 is a schematic view of the deflection angle of the front photoelectric detection device;
FIG. 4 is a schematic structural view of a three-roller floating device with a small roller diameter;
FIG. 5 is a side view of a small roll diameter three roll flotation device;
fig. 6 is a flow chart of a control method of the present invention.
Description of reference numerals:
1. an outer diameter detector; 2. a steel coil; 3. a front photoelectric detection device; 4. an inlet turn roll; 5. shearing an inlet; 6. a small-roll-diameter three-roll floating device; 61. an equipment rack; 62. adjusting a hydraulic cylinder; 63. three rollers with small roller diameters; 64. centering the floating hydraulic cylinder; 7. a rear photoelectric detection device; 8. a disc shear.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
The invention completes the centering control of the staggered edge roll by matching the electrical program control with related mechanical equipment and by consisting of a front photoelectric detection device, a rear photoelectric detection device and a small-roll-diameter three-roll floating device, thereby eliminating the defect of shearing camber.
Referring to fig. 2, the shearing device for the oriented silicon steel staggered edge coil comprises an outer diameter detector 1, a steel coil 2, a front photoelectric detection device 3, an inlet steering roller 4, an inlet shear 5, a small-roller-diameter three-roller floating device 6, a rear photoelectric detection device 7 and a circle shear 8. The coil of strip 2 is installed on entry decoiler, and external diameter detector 1 installs in the outside of coil of strip 2, and leading photoelectric detection device 3 sets up before entry arresting gear. The outer diameter detector 1 and the front photoelectric detection device 3 form a front centering device, and the deviation condition of the strip steel is judged by performing photoelectric scanning on the edge of the running strip steel. The preposed photoelectric detection device 3 is arranged between the inlet steering roller 4 and the steel coil 2, and the preposed photoelectric detection device 3 is always vertical to the strip steel positioned at the inlet uncoiler, as shown in figure 3. The inlet steering roller 4 is connected with the inlet shear 5, and a small-roller-diameter three-roller floating device 6 and a rear photoelectric detection device 7 are sequentially arranged between the inlet shear 5 and the circle shear 8.
The angle formed by the inlet steering roller and the steel coil and the angle formed by the preposed photoelectric detection device and the steel coil are similar triangles by combining figure 3, and the following conclusion can be obtained that an angle α is equal to an angle β, wherein L is the distance from the bottom end of the inlet steering roller to the shaft of the core of the starting machine, R is the outer diameter of the steel coil of the uncoiling machine, and a trigonometric function can obtain that the angle α is equal to the angle β
Namely, it is
The device for measuring the coil diameter at the inlet can obtain real-time external diameter data of the steel coil, the distance from the center of the uncoiler to the center of the inlet steering roller is fixed, and the emitting light source of the front photoelectric detection device has an automatic rotation function. Therefore, the deflection angle of the front photoelectric detection device can be calculated by using a trigonometric function, and the deflection angle of the front photoelectric detection device is ensured to be always vertical to the strip steel. In the setting of the front photoelectric detection device, the reaction precision of the front photoelectric detection device is weakened in order to reduce frequent movement caused by misalignment.
Referring to fig. 4 and 5, the small-roll-diameter three-roll floating device 6 includes an equipment frame 61, a regulating hydraulic cylinder 62, a small-roll-diameter three-roll 63, and a centering floating hydraulic cylinder 64. The adjusting hydraulic cylinder 62 is installed on the equipment frame 61, the adjusting hydraulic cylinder 62 is pneumatically connected with the small-roll-diameter three-roll 63, and the small-roll-diameter three-roll 63 is also pneumatically connected with the centering floating hydraulic cylinder 64. The small-roll-diameter three-roll floating device mainly horizontally swings through a hydraulic mechanism to center running strip steel. The small-roll-diameter three-roll floating device is different from other centering devices in that the small-roll-diameter three-roll floating device is small in size, flexible in movement and convenient to center quickly, is more suitable for centering use with high centering precision requirements, and can meet the centering requirements of high speed, short distance and high precision.
The small-roll-diameter three-roll floating device 6 and the rear photoelectric detection device 7 form a rear centering control device. The current used deviation rectifying rollers have the general roller diameter of 350mm-400mm, and some deviation rectifying rollers can also use the roller diameter of 600 mm. The invention uses small three rollers with the roller diameter of 100mm-150 mm. Its advantage over large roll diameters is; 1) the reaction speed and the deviation rectifying speed are high; 2) the volume is small, and the method is suitable for the reconstruction of the built old production line. The reaction precision of the rear photoelectric detection device is improved, and the small-roll-diameter three-roll floating device quickly completes the centering of the strip steel, so that the strip steel entering the rotary shears is ensured to be centered. In order to reduce the deviation of the strip steel when the unit operates. And the original equipment of the unit, such as a main pinch roll and a stabilizing roll, is also used for ensuring the stability of the strip steel when the unit runs at high speed, so that the shearing width precision of the disc shear is ensured.
When the uncoiler is specifically implemented, a set of outer diameter detector is arranged at the inlet of the production line and used for measuring the outer diameter of the steel coil of the uncoiler in real time. The front photoelectric emitting device has the function of automatically rotating the angle, and can change the angle and be always vertical to the running strip steel along with the gradual reduction of the outer diameter of the steel coil of the uncoiler. Meanwhile, in the setting of the front photoelectric detection device, in order to reduce frequent movement of the misalignment coil, the deviation rectifying trend of the misalignment coil on the uncoiler is judged by the front photoelectric detection device and a PLC control program. The strip steel enters the small-roller-diameter three-roller floating device from the inlet steering roller through the guide plate table. The middle roller in the small-roller-diameter three-roller floating device is controlled by a regulating hydraulic cylinder, and the centering regulation is completed by a centering floating hydraulic cylinder. The high sensitivity of the rear photoelectric detection device can enable the small-roll-diameter three-roll floating device to quickly finish the centering of the strip steel. In order to better complete the steel coil centering, the front-mounted centering device and the rear-mounted centering device are also set in a linkage mode.
Referring to fig. 6, the method for controlling shearing of the edge staggered coil of the oriented silicon steel comprises the following steps:
s1, normally producing the steel coil material;
s2, the entrance outer diameter detector works to transmit the real-time outer diameter of the steel coil into the PLC control system;
s3, the front photoelectric detection device automatically and vertically runs the strip steel according to the measured outer diameter through a formula;
s4, weakening the reaction precision of the front photoelectric detection device;
s5, leading the strip steel to enter a small-roller-diameter three-roller floating device from an inlet steering roller through a guide plate table;
s6, feeding back centering data by a rear photoelectric detection device through high-sensitivity measurement;
s7, quickly centering the strip steel by using a small-roll-diameter three-roll floating device;
and S8, cutting the strip steel in the centering steel strip by a disc shear to finish edge cutting and coiling.
The invention can effectively solve the camber defect caused by the misalignment reeling of the incoming material, and the product quality reaches the requirement of users. The method has great popularization significance under the background that the yield of the current oriented silicon steel products is increasingly improved and the market demand is continuously expanded.
In conclusion, by adopting the technical scheme of the invention, the shearing device and the control method for the oriented silicon steel misalignment coil are used for keeping the misalignment coil at the central position of the unit in the uncoiling and shearing processes of the unit by matching a group of small-roll-diameter floating three-roll floating devices with the front photoelectric detection device and the rear photoelectric detection device, effectively eliminating the defect of a shearing sickle bay caused by the misalignment coil when strip steel passes through a shearing area, and improving the shearing longitudinal width and the unequal trimming precision of the strip steel. Has the following effects:
(1) the inlet of the uncoiler is provided with an outer diameter detector, the angle is adjusted through real-time measurement data of the outer diameter of the uncoiler, and the preposed photoelectric detection device is vertical to the strip steel through rotation along with the reduction of the outer diameter of a steel coil of the uncoiler.
(2) The small-roll-diameter three-roll floating device is different from other centering devices in that the small-roll-diameter three-roll floating device is small in size, flexible in movement and convenient to center quickly, is more suitable for centering use with high centering precision requirements, and can meet the centering requirements of high speed, short distance and high precision.
(3) The reaction precision of the front photoelectric detection device is weakened, and the main purpose is to judge the deviation rectifying trend of the misalignment coil on the uncoiler by the front photoelectric detection device and a PLC control program.
(4) The reaction precision of the rear photoelectric detection device is improved, and the small-roll-diameter three-roll floating device quickly completes the centering of the strip steel, so that the strip steel entering the disc shear is ensured to be centered.
Claims (5)
1. A shearing device for an oriented silicon steel staggered edge coil comprises a steel coil, an inlet uncoiler, an inlet braking device, an inlet steering roller, an inlet shear and a circle shear, and is characterized by further comprising an outer diameter detector, a front photoelectric detection device, a small-roller-diameter three-roller floating device and a rear photoelectric detection device, wherein the steel coil is arranged on the inlet uncoiler; the inlet steering roller is connected with the inlet shear, and a small-roller-diameter three-roller floating device and a rear photoelectric detection device are sequentially arranged between the inlet shear and the circle shear.
2. The shearing device for the staggered edge rolls of oriented silicon steel as set forth in claim 1, wherein the preposed photoelectric detection device is always vertical to the strip steel positioned at the inlet uncoiler.
3. The shearing device for the oriented silicon steel staggered edge roll as claimed in claim 1, wherein the small-roll-diameter three-roll floating device comprises an equipment frame, an adjusting hydraulic cylinder, a small-roll-diameter three-roll and a centering floating hydraulic cylinder; the adjusting hydraulic cylinder is arranged on the equipment frame and is pneumatically connected with the small-roll-diameter three-roll and the centering floating hydraulic cylinder.
4. The shearing device for the staggered edge rolls of the oriented silicon steel as set forth in claim 3, wherein the roll diameters of the three rolls with small roll diameters are 100mm-150 mm.
5. The method for controlling shearing of the staggered edge coil of the oriented silicon steel as set forth in claim 1, which comprises the following steps:
s1, normally producing the steel coil material;
s2, the entrance outer diameter detector works to transmit the real-time outer diameter of the steel coil into the PLC control system;
s3, the front photoelectric detection device automatically and vertically runs the strip steel according to the measured outer diameter through a formula;
s4, weakening the reaction precision of the front photoelectric detection device;
s5, leading the strip steel to enter a small-roller-diameter three-roller floating device from an inlet steering roller through a guide plate table;
s6, feeding back centering data by a rear photoelectric detection device through high-sensitivity measurement;
s7, quickly centering the strip steel by using a small-roll-diameter three-roll floating device;
and S8, cutting the strip steel in the centering steel strip by a disc shear to finish edge cutting and coiling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810820084.1A CN110744118B (en) | 2018-07-24 | 2018-07-24 | Shearing device for staggered-edge rolls of oriented silicon steel and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810820084.1A CN110744118B (en) | 2018-07-24 | 2018-07-24 | Shearing device for staggered-edge rolls of oriented silicon steel and control method |
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| CN110744118A true CN110744118A (en) | 2020-02-04 |
| CN110744118B CN110744118B (en) | 2020-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112621389A (en) * | 2020-12-10 | 2021-04-09 | 中国重型机械研究院股份公司 | Aluminum plate transverse cutting production device and process thereof |
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| US6209189B1 (en) * | 1998-10-07 | 2001-04-03 | Yazaki Corporation | Automatic cutting and solder-less connection apparatus |
| CN2907940Y (en) * | 2006-05-26 | 2007-06-06 | 宝山钢铁股份有限公司 | Centring device for flipper guide of seaming machine |
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