CN103702776A - Pinch roll device for rolled metallurgic products - Google Patents
Pinch roll device for rolled metallurgic products Download PDFInfo
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- CN103702776A CN103702776A CN201280033730.0A CN201280033730A CN103702776A CN 103702776 A CN103702776 A CN 103702776A CN 201280033730 A CN201280033730 A CN 201280033730A CN 103702776 A CN103702776 A CN 103702776A
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- roller
- pinch roll
- rotation
- actuator
- hydraulic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/006—Pinch roll sets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Metal Rolling (AREA)
- Manufacturing Of Electric Cables (AREA)
- Furnace Details (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
A pinch roll device (1 ) for rolled metallurgic products comprises: a first pinch roll and a second pinch roll (2, 3), a passage gap (5) being defined therebetween, the first and second rolls (2, 3) being rotable about a first rotation axis and a second rotation axis (Y1, Y2), respectively, to draw a rolled metallurgic product (10) through the gap (5), a hydraulic actuator (21, 41 ) comprising a hydraulic actuator (21, 42, 43) connected to the first roll (2) and/or the second roll (3) to reciprocally either approach or space apart the first and second rolls (2, 3), so as to either reduce or increase the width of the passage gap (5), respectively, a pressure sensor (25) in the hydraulic circuit (20), a position sensor (24) in the actuator (21 ), a reversible pump (9) in the hydraulic circuit (20, 41 ) connected to the actuator (21, 42, 43) to slidingly move a piston (22); connected to the first roll (2) and/or to the second roll (3).
Description
Invention field
The present invention relates to a kind of pinch roll equipment (pinch roll device) of the metallurgical product for rolling.
Prior art
At the metallurgical product for half-formed, in the technical field of the Wiring technology of excellent wire rod (wire rod), known employing pinch roll equipment, this pinch roll equipment comprises the system of roller to goods applied pressure when monitoring distance between roller and rolling.
In the equipment of aforementioned type, disclosed a kind of equipment in No. 6920772nd, known United States Patent (USP), for example, in this equipment, roller is connected to respectively two cranks that are connected to single electric ratiomotor (electric ratio motor).The controlled rotation of ratiomotor is controlled separating in two rollers reciprocal approaching and contrary direction in one direction by two cranks.When just there are the goods in machining between roller, the ratiomotor by two cranks allows to regulate the thrust of each roller to another roller, thus also dancer rools to just at rolled product applied pressure.
The equipment of describing in No. 6920772nd, United States Patent (USP) has by its structural complexity and a series of defects of inevitably existing idle running to cause in the driving-chain between servo motor and roller, and this is by selecting the type and the number that servo motor are connected to the mechanical component of roller to determine.Therefore,, during such equipment does not allow effectively to control waiting step, between roller, there is not when rolled product during the distance and job step between roller the distance when rolled product contacts with roller between roller.During job step, in as the equipment of describing in No. 6920772nd, United States Patent (USP), distance between roller regulates by comprising the kinematic chain of electric machine part, by goods, determined shaking of roller with the dynamic stress causing that contacts between roller, and the roller occurring is thus lost with the intermittence that contacts between rolled product.Can not guarantee that the constant effect that pinches means the unstable of equipment, this is also delivered to the downstream of rolling line.In addition, pinch roll shake the blemish that causes rolled product, this reduces quality and has increased material discarded.
Known other pinch roll equipment also, those as described in US2003/034376 and EP019298, they allow by comprising that the hydraulic actuator of one or more hydraulic cylinders by servo valve control carrys out the distance between control roll.In this field, to use and comprise that the hydraulic circuit of servo valve has determined a plurality of defects, major defect is:
The service speed of-low servo valve (approximately 40-50Hz), and the therefore reactivity of low hydraulic circuit;
-open circuit operation, and therefore do not need to arrange external hydraulic annex;
The operation and maintenance cost of-Gao, reason is that servo valve has low circulation in service life conventionally.
The equipment of describing in US2003/034376 and EP0192982 is also amendatory about roller setting accuracy.
Summary of the invention
The new pinch roll equipment that the object of this invention is to provide a kind of metallurgical product for rolling, it allows to solve the defect of described prior art, thereby while allowing to control exactly the reciprocal distance of pinch roll and rolling roller to goods applied pressure so that guarantee continuous between roller and rolled product, contact uniformly.
Another object is to utilize a kind of pinch roll equipment of the new metallurgical product for rolling, and it is full automatic and does not need operator's any manual intervention, as compensating roller wearing and tearing.
Other object is to allow to realize goods high Negotiation speed between roller, up to 150m/s.
Another object of the present invention is to utilize the pinch roll equipment of being controlled by hydraulic circuit, and this hydraulic circuit has size more much smaller than prior art with regard to the length of hydraulic line and the amount of operating fluid.
Another object is the method for operating of utilizing for above-mentioned pinch roll equipment.
According to the present invention, by have independent claims 1 statement feature pinch roll equipment and by thering is the method for the feature of independent claims 8 statements, solved above-mentioned technical problem.
Particularly, aspect first, the present invention relates to the pinch roll equipment for the metallurgical product of rolling, comprising:
The-the first pinch roll and the second pinch roll, between described the first pinch roll and described the second pinch roll, defined the path clearance for the metallurgical product of rolling, described the first roller and second roller are respectively rotatable around the first rotation and the second rotation, to pull described metallurgical product through described gap by frictional force
-hydraulic circuit, it acts on described the first roller and second roller so that described the first roller and second roller reciprocally approach or separately, to reduce respectively or increase the width of described path clearance, described hydraulic circuit comprises and is connected at least one hydraulic actuator of described the first roller and/or described second roller so that described the first roller and second roller reciprocally approach or separately
It is characterized in that described pinch roll equipment also comprises:
-pressure sensor, its in described hydraulic circuit for measuring the power that is passed to described the first roller by described actuator,
-position sensor, its in described actuator for measuring the movement of described the first roller,
-reversible pump, it is in described hydraulic circuit, and described pump is connected to described actuator to move slidably the piston of described actuator, and described piston is connected to described the first roller and/or described second roller.
For such invention, owing to having pressure sensor and position sensor, can obtain following pinch roll equipment: the distance during with best mode controlled rolling between roller and the thrust of pair roller, thereby guaranteed continuous between roller and rolled product, contact uniformly.
Aspect second, the present invention relates to a kind ofly for operating the method for pinch roll equipment of the metallurgical product of rolling, described equipment comprises:
The-the first pinch roll and the second pinch roll, between described the first pinch roll and described the second pinch roll, defined the path clearance for the metallurgical product of rolling, described the first roller and second roller are respectively rotatable around the first rotation and the second rotation, to pull described metallurgical product through described gap by frictional force
-hydraulic actuator, it is connected to described the first roller so that described the first roller reciprocally approaches or separates with described second roller, to reduce respectively or increase the width of described path clearance,
-reversible pump, it is in described hydraulic circuit, and described pump is connected to described actuator to move slidably the piston of described actuator, and described piston is connected to described the first roller and/or described second roller,
Described method comprises:
-check in described path clearance the step that exists or do not have described metallurgical product,
The step of the position of-described the first roller of inspection that operates while there is not described metallurgical product when confirm described path clearance in described inspection step in,
The step of the pressure in the-described hydraulic actuator of inspection that operates when confirming there is described metallurgical product in described path clearance, the step of described inspection pressure comprises the sub-step of upgrading described position reference value.
With above about first aspect similarly, the present invention allows to obtain with best control operation the method for the pinch roll equipment of metallurgical product, comprise the step that checks position, this allow goods by before the distance between roller is set, and the step that checks pressure, the thrust of roller when this allows to regulate rolling.Alternately implement each other this two steps, this allows optimal control circulation, thereby can implement rapidly, thereby is conducive to increase the Negotiation speed of goods between roller.
By having obtained other advantages of the present invention according to the pinch roll equipment of dependent claims, as what be explained in more detail in the following description.
Comprise by mechanical fastener and/or hydraulic connectors and make the first roller and the reciprocal interconnected permission of second roller in the mode with respect to through axis symmetry, two rollers reciprocally be approached or separately, so that the size in control channel gap exactly and effectively.Especially, hydraulic actuator only directly acts in two rollers, and another roller is controlled by the gear driving member between two rollers, this allows to make mobile synchronous than other known solutions as the simpler mode in US6920772, reason is the direct coupling of the first roller and second roller, and in US6920772, mechanical joint transmission part is connected to two rollers by control member.Selectively, use and act on respectively two rollers and allow to obtain identical manipulation accuracy and identical designs simplification by compensation circuit two hydraulic actuators connected to one another.
Use hydraulic control circuit further to allow the stable of acquisition system by the roller that suppresses to be operated by hydraulic fluid and the stress between rolled product.In addition, hydraulic circuit be closed and pressurization allow there is the size very little with respect to the hydraulic circuit that typically comprises hydraulic pressure unit.
In hydraulic circuit, the reversible pump that use is controlled by electric notor, electric notor is controlled and is allowed to implement water power type control system by the control module that is connected to position sensor and pressure sensor again, wherein hydraulic unit is used for reciprocally approaching or separating of control roll, and electric parts allow effectively to obtain position and pressure feedback is controlled.This allows the advantageously feature of combination hydraulic system, especially applies the possibility of high pressure and the feature of electric system, especially control rate and reliability.
Use is allowed to save the servo valve conventionally using in hydraulic circuit and is allowed extra amount and its total length reducing by the required fluid of hydraulic circuit by the reversible pump of Electric Machine Control.
Accompanying drawing summary
Below by by reference to accompanying drawing not exclusive, represent that in detailed description of the preferred embodiments that nonrestrictive embodiment provides, other Characteristics and advantages of the present invention will become more obvious, in accompanying drawing:
-Fig. 1 is according to the schematic diagram of the pinch roll equipment of the metallurgical product for rolling of the present invention,
-Fig. 2 is the front view of some parts of the equipment in Fig. 1;
-Fig. 3 is the side view of the parts in Fig. 2,
-Fig. 4 is the schematic diagram of the constructive variation of the equipment in Fig. 1,
-Fig. 5 is for operating according to the block diagram of the method for the pinch roll equipment of the metallurgical product for rolling of the present invention.
Detailed Description Of The Invention
With reference to figure 1-3, with reference number 1 integral body, represented the pinch roll equipment for metallurgical product circular cross-section, rolling.
Conventionally, according to pinch roll equipment provided by the invention, can be configured to suitably clamp the metallurgical product of any rolling, as the rolled product of planar cross-sectional.
Equipment 1 comprises the first pinch roll 2 and second pinch roll 3 identical with the first roller 3, has defined the path clearance 5 for the cardinal principle circle of excellent wire rod 10 between the first roller 2 and second roller 3.Gap 5 defined with gap 5 coaxial through axis X, when through path clearance 5, excellent wire rod 10 be aimed at through axis X with this in operation.
The first roller 2 and second roller 3 can be respectively around the first rotation Y1 and the second rotation Y2 rotations, excellent wire rod 10 tractives are passed to path clearance 5 by frictional force.Rotation Y1, Y2 are parallel to each other and from passing the identical distance of axis X, rotation Y1, Y2 are with respect to being disposed on opposite side through axis X.The shape and size in gap 5 meet the shape and size of excellent wire rod 10, and are demarcated by the lip-deep annular groove 5a of the cylindrical peripheral that is separately positioned on pinch roll 2,3,5b in gap 5.The first roller 2 and second roller 3 are limited to respectively the first lever arm 7 and the second lever arm 8, to rotate around rotation Y1, Y2 separately.By routine and the known actuator that comprises CD-ROM drive motor (not shown) realize pinch roll 2,3 respectively with the first arm 7 together with the second arm 8 around axis Y1 separately, the rotation of Y2, actuator is connected to roller by driving member, driving member comprises a pair of driven gear 2a, the 3a coaxial with axis Y1, Y2 and a pair of driven wheel 2b, 3b, and it is engaged with each other to counter-rotate. Driven gear 2a, 3a mesh with driven wheel 2b, 3b respectively, and driven pulley 2a, 3a accept motion from driven wheel 2b, 3b.Rotatablely moving of being caused by CD-ROM drive motor is passed to driven wheel 3b by movement output axle 3c.This motion is passed to another driven wheel 2b and to driven gear 3a from driven wheel 3b.This motion is passed to another driven gear 2a from driven wheel 2b.Due to described connection, therefore driven gear 2a, 3a and roller the 2, the 3rd separately, reverse rotation.
The first arm 7 be equal to each other with the second arm 8 and with respect to through axis X, become the whole a pair of hinge separately of all mistakes of fixed reference frame to be rotated support, hinge has defined respectively parallel to each other and from the 3rd rotation Z1 and the 4th rotation Z2 through axis X same distance, the 3rd rotation Z1 and the 4th rotation Z2 are with respect to being disposed on opposite side through axis X.
The first arm 7 and the second arm 8 can be respectively around Z1 and Z2 rotation, so that the first roller 2 and second roller 3 reciprocally approach or separately, to reduce or increase respectively the width of path clearance 5.The 3rd rotation Z1 and the 4th rotation Z2 are spaced from and parallel to the first rotation Y1 and the second rotation Y2 along arm 7,8 separately and the first rotation Y1 and the second rotation Y2 respectively.In fact, four axis Y1, Y2, Z1 and Z2 form parallel axis system in all operations condition of equipment 1.
For the rotation of lever lever arm 7,8 and therefore in order to make the first roller 2 and second roller 3 reciprocally approach or separate, equipment 1 comprises hydraulic circuit 20 and mechanical gear driving member 11, hydraulic fluid is if oil is in the interior circulation of hydraulic circuit 20, and the first roller 2 and second roller 3 pass through mechanical gear driving member 11 by interconnected.
Driving member 11 thereby permission hydraulic actuator 21 are connected to second roller 3 by the first roller 2, and driving member 11 comprises the gear 12 between lever arm 7,8 and the first lever arm 7 and the second lever arm 8.Gear 12 comprises respectively first toothed portion 12a and the second toothed portion 12b whole and be engaged with each other with 8 one-tenth, the first arm 7 and the second arm, makes the rotation each time of being given the first arm 7 by actuator 21 be passed to the second arm 8.
The first toothed portion 12a and the second toothed portion 12b are arranged on respectively the end of the 3rd arm 32 and the end of the 4th arm 33, and the 3rd arm 32 and the 3rd arm 33 and the first arm and the second arm 7,8 are integrated, aligned with each other and be orthogonal to through axis X.Arm 32,33 is disposed in respect to through on the opposite side of axis X, and the first toothed portion 12a and the second toothed portion 12b are engaged with each other through axis X place same.The gearratio of gear 12 is single, and what make the first arm 7 rotates the rotation that equate, contrary corresponding to the second arm 8 each time.Gear 12 allows to obtain the first lever arm 7 and the second lever arm 8 and is limited to the first lever arm 7 and the motion synchronous, that coordinate of the first roller 2 of the second lever arm 8 and second roller 3.Therefore the assembly, being comprised of the first arm 7 and the first roller 2 that is limited to it is identical and symmetrical with the second arm 8 with the assembly that is limited to its second roller 3 with respect to axis X in all operations condition.
According to another kind of constructive variation (not shown) of the present invention, the first roller 2 and second roller 3 are interconnected each other by the mechanical fastener of another kind of form, and the mechanical fastener of another kind of form, as there is no gear, comprises a plurality of chains.
The pump 9 of the motion of control piston 22 is operated by electric notor 9a; Thereby the position of the piston in cylinder 22 depends on the angle position of the motor 9a of pump 9, and the movement velocity of cylinder depends on the angular speed of pump 9.
When hydraulic circuit 20 is closed and pressurization, during containing hydraulic control unit, the fluid of same amount is circulation within it always.The motor 9a of pump 9 has determined the fluid motion each time in hydraulic circuit 20: therefore, if motor 9a operating pumps 9 not, fluid flowing in the every bit of hydraulic circuit 20 be substantially zero and piston 22 do not move.
Connecting branch road is arranged between the first branch road 20a and the second branch road 20b of hydraulic circuit 20; dispose the maximum pressure valve 29 of calibration, so that protection hydraulic circuit is avoided because being applied to the first roller 2 and transshipping by the pressure excessive, that the load of even pulse causes that bar 31 is passed to actuator 2.The first branch road 20a and the second branch road 20b are connected to supplementary source (top-up source) 27 in the upstream of reversible pump 9, this allows to supplement the fluid from any seepage of hydraulic circuit 20.The first check-valves 28a and the second check-valves 28b are separately positioned on the first branch road 20a and the second branch road 20b goes up between supplementary source 27 and reversible pump 9, and the first check-valves 28a and the second check-valves 28b are directed to prevent that fluid from flowing to supplementary source 27 and allowing to flow in the opposite direction from pump 9.
Amount by the required fluid of the operation hydraulic circuit 20 fluid and given of circulation of fluid and supplementary source 27 interior existence can be advantageously at 0.5 to 2 liter, preferably in the scope of 0.7 to 1.4 liter.When hydraulic circuit 20 is while being closed, can also comprise its size: the total length of hydraulic line, wherein advantageously, 0.5 to 1.5 meter of Fluid Circulation, preferably 0.7 to 1 meter.
Reversible pump 9 and thereby actuator 21 activated in a controlled manner.Comprise feedback control circuit 30, it comprises the electric notor 9a that is connected to pump 9 by connector 9b.Control circuit 30 also comprises pressure sensor 25 and the position sensor in actuator 21 24 between actuator 21 and maximum pressure valve 29 in the first branch road 20a of hydraulic circuit 20.Pressure sensor 25 allows in measuring circuits and the pressure in the 21a of chamber specifically, and thereby has determined to be passed to by bar 31 by actuator 21 the power F1 of the first roller 2.Power F1 is passed to excellent wire rod 10 from the first roller.In order to realize the balance of plant obtaining by driving member 11 by the connector between arm 7,8, the identical opposite force F2 that is passed to excellent wire rod 10 from second roller 3 is corresponding to power F1.Roll-force and pressure can be controlled by the pressure of controlling in hydraulic circuit 20.Position sensor 24 allows to measure the motion of pistons 22, and thereby measures the motion of the first roller 2.The position of the first roller 2 can be controlled by the position of control piston 22, and therefore, by driving member 11, the position of second roller 3 also can be controlled, thereby regulated the width of path clearance 5.Control circuit 30 also comprises control module 26, and electric notor 9a is controlled by this control module 26.Control module 26 is connected to position sensor 24 and pressure sensor 25, to obtain FEEDBACK CONTROL.Control module 26 receives pressure data and the position data being recorded by sensor 25,24 and processes them, to measure the width value of power F1 and path clearance 5.According to method of operating 100, control module 26 compares and therefore controls electric notor 9a with the width of change or maintenance energy F1 and path clearance 5 by these values and reference point separately subsequently, and the important step of this method of operating 100 is described below.
With reference to figure 4, the constructive variation of the pinch roll equipment for excellent wire rod that represented by reference number 40 integral body is different from equipment 1, and reason is that it comprises different hydraulic circuit 41, as described in more detail below.Do not describe the miscellaneous part of equipment 40 in detail, because they are identical with the corresponding component of the said equipment 1.Hydraulic circuit 41 is different from the hydraulic circuit 20 of equipment 1, because hydraulic circuit 41 comprises a pair of single-action hydraulic actuator 42,43 that is connected to respectively the first roller 2 and second roller 3, rather than dual-effect hydraulic actuator device 21.Each hydraulic actuator 42,43 is included in the piston 22 sliding between top the first Room 42a, 43a separately and bottom compartment 42b separately, 43b.Upper chambers 42a, the 43a of hydraulic actuator 42,43 is connected to respectively the first branch road 20a and the second branch road 20b of hydraulic circuit 41.Bottom compartment 42b, the 43b of hydraulic actuator 42,43 is connected to each other by comprising the hydraulic connectors of compensation circuit 44, the first roller 2 and second roller 3 are interconnected by hydraulic connectors, make to move away described second roller 3 and when described second roller 3 moves, second roller 3 moves away the first roller 2 simultaneously and moves towards the first roller 2 when the first roller 2.As in the version of Fig. 3, in the version of Fig. 4, the first roller 2 and second roller 3 are also with respect to leaving symmetrically through axis X or approaching.When reversible pump 9 is directly delivered to the upper chambers 42 of actuator 42 by the first branch road 20a by oil, corresponding piston 22 moves towards bottom compartment 42b, and promote oil through compensation circuit 44 simultaneously, and entering the bottom compartment 43b of actuator 43, its corresponding piston 22 moves towards corresponding upper chambers 43a.Selectively, when reversible pump 9 is directly delivered to the upper chambers 43a of actuator 43 by the second branch road 20b by oil, corresponding piston 22 moves towards bottom compartment 43b, and promote oil through compensation circuit 44 simultaneously, enter the bottom compartment 42b of actuator 42, wherein corresponding piston 22 moves towards upper chambers 42a separately.
According to another constructive variation (not shown) of the present invention, pinch roll equipment according to the present invention comprises and is similar to loop 41, but do not comprise the hydraulic circuit of driving member 11.
With reference to the schematic diagram in figure 5, the method for operating 100 of the equipment 1 that can implement in control module 26 comprises initial step 50, and in this initial step 50, the method checks that roller 2,3 is static or rotation with respect to rotation Y1, Y2 separately.If roller the 2, the 3rd is static, method 100 finishes, and marches to the next step 51 that stops.If roller the 2, the 3rd, rotates by a pair of gear 2a, 3a, method 100 continues next steps 52, and in step 52, the method checks that the control motor 9a of pump 9 closes or moves.If motor 9a closes, method 100 finishes and marches to stop step 51.If motor 9a operation, method 100 continues to arrange the next step of reference point 53, and in this step, goods to be processed are identified and the first reference point 61 of position and second reference point 71 of the pressure in loop 20 of piston 22 are set up according to the goods of being confirmed as the type and character of excellent wire rod 10.
Method 100 continues next step 54: check the interior existence of path clearance 5 between roller 2,3 or do not exist metallurgical product to be processed as excellent wire rod 10.In order to implement to check step 54, there is or not exist the external data of metallurgical product to be processed in control module 26 confirmations of receipt, these data are by being arranged in the upstream of path clearance 5 and being connected to one or more sensor (not shown)s of control module 26, as photocell obtains.
While confirming there is not metallurgical product to be processed in path clearance 5 during checking step 54, method 100 continues steps 110: check the position of piston 22 and thereby check the position of the first roller 2.Selectively, when confirming in checking step 54 that path clearance 5 is interior and having metallurgical product to be processed, method 100 continues pressure and checks steps 120, at this pressure, checks in step 120 and checks the pressure in actuator 21.
When position detection step 110 and the end of pressure inspection step 120, method 100 comprises the step 80 that checks process finishing, in step 80, the method is by the signal of being supplied with by control module 26, as the control by by the activatable switch of operator or other types checks whether process is being carried out or finished.If the operation of rolling finishes, method 100 ends at final step 81, and wherein the first roller 2 and second roller 3 are maximum reciprocal distance.Selectively, if the operation of rolling does not finish, method 100 is proceeded by repeating to arrange the step 53 of reference point.
If position detection step 110 comprises the measurement result by being supplied with by position sensor 24 and measure the first sub-step 60 of the current location of piston 22, the current location of piston 22 may be relevant to the position of the first roller 2, and reason is by the connection of bar 31.The second place compares sub-step 62 after the first sub-step, so that the positional value recording and reference position value 61 that the first sub-step 60 is confirmed compare.By deduct the value recording from reference point, compare.Position detection step 110 continues the 3rd and checks sub-step 64, and in the 3rd checks sub-step 64, the method inspection is implemented in the second sub-step 62 deducts the result whether with 0 or the result that is different from 0.If result is 0, position detection step 110 finishes and method 100 continuation process finishing inspection steps 80, and if result is not 0, position detection step 110 continues the 4th sub-step 63, puts on piston 22 move to reach the position corresponding to reference point 61 in the 4th sub-step 63 by motor 9a and reversible pump 9.The difference putting between the motion of piston 22 and the positional value recording and reference position value 61 is proportional.When the 4th sub-step 63 finishes, position detection step 110 finishes and method 100 continues process finishing inspection step 80.
Pressure checks that step 120 comprises the 5th fast approaching sub-step 59, at the 5th fast approaching sub-step 59 central rolls 2,3, approach metallurgical product to be processed, it is the 6th sub-step 70 of the value recording of measurement result by being supplied with by pressure sensor 25 pressure of upstream in the first branch road 20a of hydraulic circuit 20 that is determined at reversible pump 9 after this, this force value may be relevant with the pressure of the first Room 21a of actuator 21, and reason is pressure sensor 25 and the degree of approach of actuator 21.The 7th pressure ratio compared with sub-step 72 after the 6th sub-step, with by the force value recording of confirming in the 6th sub-step 70 and 71 comparisons of reference position value.By deduct the value recording from reference point, implement comparison.The step 120 that checks pressure continues the 8th and checks sub-step 75, and whether the result deducting of implementing in the method inspection the 7th sub-step 72 in the 8th checks sub-step 75 is 0 or is different from 0.If result is 0, pressure checks that step 120 continues to upgrade the 9th sub-step 74 of reference position, and in the 9th sub-step 74, the first reference point 61 of the position of piston 22 is updated to currency.When the 9th sub-step 74 finishes, implement pressure and check step 120, and method 100 continues process finishing inspection step 80.If the 8th checks that the result deducting of calculating in sub-step 75 is not 0, but be different from 0, pressure checks that step 120 continues the tenth sub-step 73, in the tenth sub-step 73, by motor 9a and reversible pump 9, is applied and is pressed on piston 22 and moves to reach the pressure corresponding to reference point 71.Put on the motion of piston 22 and the force value recording and proportional with reference to the difference between force value 71.When the tenth sub-step 73 finishes, pressure checks that step 120 finishes and method 100 continues process finishing inspection step 80.
Power checks that the said method that step 110 and position detection step 120 are alternately implemented each other can be implemented very rapidly, with the frequency of common about 3000Hz.This has obtained goods to be processed along reach the possibility of the feed speed of about 150m/s through axis X.
Said method 100 also can be used in the pinch roll equipment that is different from equipment 1, and condition is that pinch roll equipment comprises:
The-the first pinch roll and the second pinch roll, the path clearance of the metallurgical product of rolling is defined in therebetween, the first pinch roll and the second pinch roll are rotatable around the first rotation Y1 and the second rotation Y2 respectively, to pull described metallurgical product through path clearance by frictional force
-hydraulic actuator, it is connected to roller to make in a controlled manner them approach or make them spaced apart, to reduce respectively or increase the width of path clearance,
-reversible pump, it is connected to hydraulic actuator with the piston of mobile link to the first pinch roll and/or the second pinch roll slidably.
Described technical scheme allows to solve the setting task and goal with reference to the prior art of mentioning completely, thereby has obtained multiple other advantage, comprising:
-use efficient, closed hydraulic circuit, mobile minimum fluid only wherein, the i.e. required fluid of the piston of movable hydraulic actuator only.This allows to obtain the hydraulic circuit with high response feature.This is by using the hydraulic pump controlled by electric notor further to be promoted, motor allows to reach service speed (up to 200-300Hz), and this is significantly higher than and obtains by servo valve;
-obtaining the equipment of the inevitable effect of attrition that is not subject to pinch roll, wearing and tearing can compensate by the lever arm of rotary supporting roller;
-system of self-damping is provided, wherein the fluid in hydraulic control circuit is realized damping function and this does not need to insert extra damping element;
-use the hydraulic system that there is no servo valve, thereby allow significantly to reduce operating cost and maintenance cost.
Claims (11)
1. the pinch roll equipment for the metallurgical product of rolling (1,40), comprising:
The-the first pinch roll (2) and the second pinch roll (3), between described the first pinch roll (2) and described the second pinch roll (3), defined the path clearance (5) of the metallurgical product (10) for rolling, described the first roller and second roller (2,3) are respectively rotatable around the first rotation and the second rotation (Y1, Y2), to pull described metallurgical product (10) through described gap (5) by frictional force
-hydraulic circuit (20,41), it acts on described the first roller and second roller (2,3) so that described the first roller and second roller (2,3) reciprocally approach or separately, to reduce respectively or increase the width of described path clearance (5), described hydraulic circuit (20) comprises and is connected at least one hydraulic actuator (21,42,43) of described the first roller (2) and/or described second roller (3) so that described the first roller and second roller (2,3) reciprocally approach or separately
It is characterized in that, described pinch roll equipment also comprises:
-pressure sensor (25), it is passed to the power of described the first roller (2) and/or described second roller (3) in described hydraulic circuit (20,41) by described actuator (21,42) with mensuration,
-position sensor (24), its in described actuator (21,42) to measure the movement of described the first roller (2) and/or described second roller (3),
-reversible pump (9), it is in described hydraulic circuit (20,41), described pump (9) is connected to described actuator (21,42,43) to move slidably the piston (22) of described actuator (21,42,43), and described piston is connected to described the first roller (2) and/or described second roller (3).
2. pinch roll equipment according to claim 1 (1), wherein said the first roller and second roller (2,3) by mechanical fastener and/or hydraulic connectors (11,44) by reciprocally interconnected.
3. pinch roll equipment according to claim 2 (1), wherein said hydraulic circuit (20,41) comprises the hydraulic actuator (21,42) that is connected to described the first roller (2), and described connector (11,44) is included in gear driving member (11) between described the first roller and second roller (2,3) described hydraulic actuator (21,42) is connected to described second roller (3) by described the first roller (2).
4. according to the pinch roll equipment (1) described in claim 2 or 3, wherein said hydraulic circuit (41) comprises a pair of hydraulic actuator (42,43) that is connected to respectively described the first roller and second roller (2,3), so that described the first roller (2) moves away described second roller (3) and mobile towards described second roller (3), make described second roller (3) move away described the first roller (2) and mobile towards described the first roller (2), described connector (11,44) is included in the compensation circuit (44) between described the first roller and second roller (2,3) simultaneously.
5. according to the pinch roll equipment (1) described in claim 3 or 4, wherein said driving member (11) comprises the first lever arm and the second lever arm (7, 8), described the first roller and second roller (2, 3) be limited to respectively described the first lever arm and the second lever arm (7, 8), so that around rotation (Y1 separately, Y2) rotation, described the first arm and the second arm (7, 8) be respectively around the 3rd rotation and the 4th rotation (Z1, Z2) rotatable, so that described the first roller and second roller (2, 3) reciprocally approach or separate, described gear (12) comprises respectively and described the first arm and the second arm (7, 8) integrated at least the first toothed portion (12a) and the second toothed portion (12b), described the first toothed portion and the second toothed portion (12a, 12b) be engaged with each other with at described the first lever and the second lever (7, 8) between, transmit rotation.
6. pinch roll equipment according to claim 5 (1), wherein said the first rotation, described the second rotation, described the 3rd rotation and described the 4th rotation (Y1, Y2, Z1, Z2) are parallel to each other.
7. pinch roll equipment according to claim 1 (1), wherein said pump (9) is subject to being connected to the control of electric notor (a) control device of the control module (26) of described position sensor (24) and described pressure sensor (25).
8. one kind for operating the method for operating (100) of pinch roll equipment (1) of the metallurgical product of rolling, and described equipment comprises:
The-the first pinch roll (2) and the second pinch roll (3), between described the first pinch roll (2) and described the second pinch roll (3), defined the path clearance (5) of the metallurgical product (10) for rolling, described the first roller and second roller (2,3) are respectively rotatable around the first rotation and the second rotation (Y1, Y2), to pull described metallurgical product (10) through described gap by frictional force
-at least one hydraulic actuator (21,42,43), it is connected to described the first roller and second roller (2,3) so that described roller (2,3) reciprocally approaches or separately, to reduce respectively or increase the width of described path clearance (5),
-reversible pump (9), it is in described hydraulic circuit (20,41), described pump (9) is connected to described actuator (21,42,43) to move slidably the piston (22) of described actuator (21,42,43), described piston is connected to described the first roller (2) and/or described second roller (3)
Described method (100) comprising:
-check the inspection step (54) that has or do not exist described metallurgical product (10) in described path clearance (5),
The step (110) of the position of-described the first roller of inspection (2) implemented while there is not described metallurgical product (10) when confirm described path clearance (5) in described inspection step (54) in,
The step (120) of the pressure in the described hydraulic actuator of inspection (21) of-enforcement when confirming to have described metallurgical product (10) in described path clearance (5), described pressure checks that step (120) comprises the sub-step (74) of upgrading described position reference value.
9. method of operating according to claim 8 (100), the described step (110) that wherein checks the position of described the first roller (2) comprises location comparison sub-step (62), with the positional value recording and reference position value that relatively may be relevant to the position of described the first roller (2).
10. method of operating (100) according to claim 8 or claim 9, the described step (120) that wherein checks the pressure in described hydraulic actuator (21) comprises that pressure ratio is compared with sub-step (72), with the force value recording that relatively may be relevant to described hydraulic actuator (21) with reference to force value.
11. methods of operating according to claim 8 (100), wherein when the force value recording described in confirming in compared with sub-step (72) in described pressure ratio equals described pressure reference point, the described sub-step (74) of described position reference value is upgraded in operation.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI2011A001274 | 2011-07-08 | ||
| IT001274A ITMI20111274A1 (en) | 2011-07-08 | 2011-07-08 | DRIVING DEVICE FOR LAMINATED METALLURGICAL PRODUCTS |
| PCT/IB2012/053464 WO2013008159A2 (en) | 2011-07-08 | 2012-07-06 | Pinch roll device for rolled metallurgic products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103702776A true CN103702776A (en) | 2014-04-02 |
| CN103702776B CN103702776B (en) | 2017-02-15 |
Family
ID=44511227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280033730.0A Active CN103702776B (en) | 2011-07-08 | 2012-07-06 | Pinch roll device for rolled metallurgic products |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20140137617A1 (en) |
| EP (1) | EP2729263B9 (en) |
| JP (1) | JP5806400B2 (en) |
| KR (1) | KR20140032480A (en) |
| CN (1) | CN103702776B (en) |
| IT (1) | ITMI20111274A1 (en) |
| WO (1) | WO2013008159A2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269924A (en) * | 2016-10-13 | 2017-01-04 | 北京京诚瑞信长材工程技术有限公司 | Pinch roll |
| CN106807763A (en) * | 2015-11-27 | 2017-06-09 | 北京京诚瑞信长材工程技术有限公司 | A kind of pinch roll structural assembly |
| CN110052501A (en) * | 2019-04-15 | 2019-07-26 | 燕山大学 | Spring swings the box symmetrical pinch mechanism of drive lacking |
| CN110883108A (en) * | 2019-11-19 | 2020-03-17 | 张家港宏昌钢板有限公司 | Spiral shell production and processing device with pinch roll |
| CN111330982A (en) * | 2020-03-16 | 2020-06-26 | 哈尔滨哈飞工业有限责任公司 | Control system of pinch roll of high-speed wire rod production line |
| CN112518017A (en) * | 2020-11-17 | 2021-03-19 | 中冶华天南京工程技术有限公司 | Intelligent adjusting system and method for pinch roll before shearing |
| CN116037698A (en) * | 2023-02-07 | 2023-05-02 | 浙江菲尔特过滤科技股份有限公司 | Metal fiber processing equipment and processing method based on roll forging |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115159225A (en) * | 2022-06-30 | 2022-10-11 | 广西广盛新材料科技有限公司 | Roll gap deviation control method, roll gap deviation control device, computer and readable storage medium |
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| CN106807763A (en) * | 2015-11-27 | 2017-06-09 | 北京京诚瑞信长材工程技术有限公司 | A kind of pinch roll structural assembly |
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| CN110883108A (en) * | 2019-11-19 | 2020-03-17 | 张家港宏昌钢板有限公司 | Spiral shell production and processing device with pinch roll |
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| CN116037698A (en) * | 2023-02-07 | 2023-05-02 | 浙江菲尔特过滤科技股份有限公司 | Metal fiber processing equipment and processing method based on roll forging |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140137617A1 (en) | 2014-05-22 |
| EP2729263B1 (en) | 2015-11-18 |
| KR20140032480A (en) | 2014-03-14 |
| EP2729263A2 (en) | 2014-05-14 |
| CN103702776B (en) | 2017-02-15 |
| WO2013008159A3 (en) | 2013-03-14 |
| ITMI20111274A1 (en) | 2013-01-09 |
| WO2013008159A2 (en) | 2013-01-17 |
| JP5806400B2 (en) | 2015-11-10 |
| EP2729263B9 (en) | 2016-04-13 |
| JP2014521514A (en) | 2014-08-28 |
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