• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a drum shears (1) and a method for transverse cutting of rolling stock (2) by means of the drum shears (1). The object of the invention is to provide a drum shears (1) and a method for transverse cutting of rolling stock (2) by means of the drum shears (1), with which the knives (26) of the drum shears (1) can be quickly and accurately positioned in the cutting position , The drum shears (1) should also be designed simple and robust. This object is achieved by a drum shears (1), wherein the actuating device (28) comprises a first hydraulic cylinder (13) and a second hydraulic cylinder (14), wherein the first hydraulic cylinder (13) between the first part (11) and the second hydraulic cylinder (14) and the second hydraulic cylinder (14) between the first hydraulic cylinder (13) and the second part (12) is arranged.
    公开号:AT511327A4
    申请号:T15602011
    申请日:2011-10-25
    公开日:2012-11-15
    发明作者:
    申请人:Siemens Vai Metals Tech Gmbh；
    IPC主号:
    专利说明:

    25 Oct. 5011 8:13 Siemens CIC P No. 4336 p. 4 201123315 ............ .. ·; · Μ · ·; *: * ϊ 1 »· ·· *, * · .. · ....... Description Drum Shear 5 10 15 20 25 30
    TECHNICAL FIELD The invention relates to a drum shop for the cutting of rolling stock, cold or hot rolling stock, which can be formed as flat or long product, comprising: two oppositely arranged drums, which correspond by means of a drive device with a rolling pass speed - Each of these drums having a first part which is rotatably mounted about a rotation axis, and a second part which carries a knife, and - wherein between the first part and the second part a guide is formed, so that the second part is slidably adjustable by means of an actuating device between a starting position and a cutting position. In addition, the invention relates to a method for cross-cutting of rolling stock by means of a drum shears, wherein the drum shears two drums and each drum comprises at least one knife, the knife can be moved by a first hydraulic cylinder and a second hydraulic cylinder. Finally, the invention relates to the use of the drum shears according to the invention for carrying out the method according to the invention. PRIOR ART In rolling mill technology, so-called drum shears, which essentially consist of two drums, whose knives are brought together for cutting, are used for the transverse cutting of rolling stock. Such two-drum shears can 25/10/2011 08:16
    No .: R708 P.004 / 032 35
    No. 4336 p. 5
    25 Oct. 20: 8:14 Siemens CIC F 201123315, for example, as a high-speed shears, i. that the knife drum accelerates from standstill to rolling pass speed during less than one revolution of the drum and that the knives are brought into the cutting position. After the cutting the drums are delayed again. It is disadvantageous that very high drive powers are required for the acceleration process with increasing throughput speed of the rolling stock. 10
    To be able to separate high-speed steel bands, therefore, two-drum scissors are known whose knife drums do not run up at each cut, but are driven so that the blade circle peripheral speed of the drums of 15 speed of the rolling stock either constantly or that the knife drums within several revolutions at belt speed to be brought. A typical embodiment is disclosed for example in DE 195 42 173 C2. Shortly before the desired cutting time, the knives are moved by means of an actuating device, e.g. a pull and push rod, extended. The disadvantage of this is that the knife must be brought from the retracted starting position in the extended cutting position during a revolution of the drum, which requires very high speeds of the knife at high speeds of the rolling stock. Furthermore, the actuator is complex, prone to failure and not very robust. 30 Nowadays, in hot rolling mill technology, increasingly thin steel strips are being processed whose thickness is often less than 1 mm. The belt speed can be up to 20 m / s and more. In order to be able to cut a thin, quickly moving metal strip, high demands are made on the 35 shears. Because of the narrow knife gap, the knives must still be moved exactly synchronously with each other despite the fast movement. In addition, this precision can be obtained over the longest possible service life. Running 25/10/2011 08:17
    No .: R708 P.005 / 032 25.0kt. 2011 8:14 201123315
    Siemens C1C P N r. The knives asynchronously or the knife gap changes, for example due to mechanical tolerances and / or wear, it can 5 Known drum shears encounter increasingly in terms of the complicated design of the actuator to its limits when very thin and very fast moving steel strips to be reliably separated. 10 Presentation of the invention
    The invention is based on the object of specifying a drum shears and a method for the cross-cutting of rolling stock by means of a drum shears, with which the knives of the 15 drum shears very quickly and reliably in the
    Cutting position can be brought. The drum shears should also be designed simple and robust.
    The solution of this object is achieved by a drum shears 20 according to claim 1, wherein the actuating means comprises a first hydraulic cylinder and a second hydraulic cylinder, wherein the first hydraulic cylinder between the first part and the second hydraulic cylinder and the second hydraulic cylinder between the first hydraulic cylinder and the second part 25 is arranged.
    Advantageous embodiments of the invention are specified in the dependent claims. By the execution of the actuator as two, successively arranged, hydraulic cylinder, it is possible reliably and quickly to bring the knife of the drum shears in cutting position. In a first step, which typically occurs within a plurality of revolutions of the drum 35, the knife is brought by the first hydraulic cylinder from a retracted home position to a pre-set position which is between the home position and the cut position. The first 25/10/2011 08:17
    No .: R708 P.006 / 032 25.Oct. 2011 8:14 201123315
    Siemens CIC P
    No. 4336 p. 1 • · «·
    Hydraulic cylinder is connected to the first part of the drum, Shortly before the actual cut in a second step, the knife is very quickly, i. within less than 1 turn of the drum, extended by the second 5 hydraulic cylinder from the pre-set position to the cut position, wherein the cutting of the rolling stock is performed with the knives extended. The second hydraulic cylinder is connected to the first hydraulic cylinder. In the inventive arrangement of the first and 10 second hydraulic cylinder, the hydraulic cylinder i.A. arranged in the radial direction one behind the other, wherein the first hydraulic cylinder with the first part and the second hydraulic cylinder is connected to the second part. In principle, although not radial arrangements of 15 hydraulic cylinders would be conceivable, but would such
    Arrangement to increase the travel of the hydraulic cylinder.
    The first and second hydraulic cylinders may be single-acting (for example, a plunger cylinder) or double-acting (e.g., differential or synchronous) cylinders. An advantage of the single-acting hydraulic cylinder whose simple design; advantageous to the double-acting hydraulic cylinder is that the cylinder, the knife holder and the knife move in both directions, i. in and out, can be. In addition, a hydraulic pressure can be clamped in opposite chambers of the hydraulic cylinder, so that the rigidity of the drive can be increased, hydraulic cylinders are very reliable construction elements, which are subjected to little wear. The travel distance between the pre-set position and the cut position is approximately 3 to 33% of the travel distance between the home position and the preposition position. This allows the knife to be brought into the cutting position very quickly. To increase the compactness of the drum shears 2u, it is advantageous to form the first hydraulic cylinder as a multi-stage hydraulic cylinder (a so-called telescopic cylinder with at least two stages). 25/10/2011 08:17
    No .: R708 P.007 / 032 25. Oct. 201! 8:15 20X123315
    Siemens C1C P
    No. 4336 p. 8 • ·
    Typically, however, it is sufficient to design the first hydraulic cylinder as a single-stage hydraulic cylinder. In principle, it is of course also possible to run the second hydraulic cylinder as a single or multi-stage 5 hydraulic cylinder. In this case, the two successively arranged hydraulic cylinder may have a so-called double-piston arrangement, wherein a first control line, a first piston from the starting position is displaced to the pre-setting position, by a second control line, the second piston of the
    Advance position movable in the cutting position. Of course, it is also possible to arrange two separate hydraulic cylinders with respect. The travel in series, 15 A simple construction of the actuator is possible if the first part of the drum at least one cylinder tube, preferably two cylinder tubes, the two hydraulic cylinders formed. This reduces the number of components. For highly accurate positioning of the knives, it is advantageous if the first hydraulic cylinder has a first end stop for defining a pre-set position, with the pre-set position between the starting position and the cutting position, and the second hydraulic cylinder has a second end stop for fixing the pre-set position Cutting position has. As a result, the end positions of the two hydraulic cylinders are mechanically fixed, whereby the positions of the pre-position and the cutting position are determined. Of course, it is by no means mandatory that the first and the second hydraulic cylinder each have a mechanical end stop; rather, it is conceivable that e.g. only the second hydraulic cylinder has a mechanical stop for determining 35 the cutting position.
    The position of at least one end stop may be fixed or adjustable, e.g. through a thread, causing the 25/10/2011 08:18
    No .: R708 P. 008/032 25.Oct. 2011 8:15 201123315
    Siemens CIC F. 4336 p. 9 • · · • * * * *
    End stop against the hydraulic cylinder can be moved axially.
    To establish a defined starting position, it is advantageous for a spring element to be arranged between the first and the second part. This can be ensured that in the case of a pressure drop in the hydraulic system, the knife is automatically retracted to the starting position. But this also ensures that the 10 knife holder, which is made by a plunger cylinder to the rolling stock, is automatically retracted to the starting position. For a quick extension or retraction of the blades, it is advantageous if the drive device has a
    Drive shaft is connected to a drum, and a pressure source with a rotary feedthrough, the rotary feedthrough with the drive shaft, the drive shaft with a hydraulic valve, which is arranged on the drum, and the hydraulic valve 20 is fluidly connected to a hydraulic cylinder. Thus, the distance between the hydraulic valve and the hydraulic cylinder is reduced, whereby the pressure for actuating the actuator can be increased or decreased more quickly 25.
    A particularly rapid pressure build-up is possible if a hydraulic valve is arranged directly on the hydraulic cylinder (or at least in the immediate vicinity of the cylinder). 30
    Alternatively, the drive device is connected via a drive shaft to a drum, and a hydraulic valve with a rotary feedthrough, the rotary feedthrough with the drive shaft, and the drive shaft 35 is fluidly connected to a hydraulic cylinder. In contrast to the aforementioned embodiment, the hydraulic valve is stationary, so that the pressure medium but also the control signals are simply supplied to the hydraulic valve 25/10/2011 08:18
    No .: R708 P.009 / 032 0 · 25. Oct. 2011 8:15 201123315
    Siemens CiC P
    No. 4336 p. 10 * »» * * 9. A particularly compact arrangement can be achieved if the rotary input on the side opposite to the drive side of the drum, is arranged. Since the hydraulic pressure when cutting a rolling stock, typically 1.2 times to 2.5 times the driving pressure {typically > 125 bar, preferably > 160 bar), it is advantageous if between the hydraulic valve and at least one hydraulic cylinder, a, preferably unlockable, locking device, in particular with a ball or valve seat, is arranged. In this case, the blocking device 2.B. integrated into the hydraulic valve or installed in the line between the valve and the actuator. This will cause leakage from a hydraulic cylinder b2w. a valve reliably avoided.
    In particular, in the arrangement of the hydraulic valve on the drum, it is preferable that a control device is connected to the hydraulic valve via a wireless signal transmission device (e.g., a radio link or an optical link). Alternatively, however, control signals may of course also be transmitted via a wired transfer device (for example via 25 slip rings in the area of the rotary union), of the
    Control device to the drive shaft, and be transmitted from there to the hydraulic valve. For monitoring the drum shears, it is advantageous if pressures, valve positions, positions of the drum, etc. are transmitted to a monitoring device.
    The object according to the invention is likewise achieved by a method for the cross-cutting of rolling stock by means of a drum shears according to claim 10, wherein the drum shears comprise two drums and each drum comprises at least one knife, the knife being held by a first hydraulic cylinder and a second hydraulic cylinder 25/10/2011 08:18
    No .: R708 P.010 / 032 25.Oct. 2011 8:16 201123315
    Siemens CIC P
    No. 4336 p. »· * * •« «• v ·» · a I · 9 II · * > * »« · · * Can be postponed, comprising the following procedural steps:
    Advancing the knives by means of the first hydraulic cylinder from a home position to a pre-set position, the preposition position being between the home position and the cut position and advancing within 2 to 100, preferably 3 to 20 revolutions of the drum;
    Opposite rotating of the drums, the 10 peripheral speed of the drums of the
    Passing speed of the rolling stock corresponds; Extension of the knives by means of the second hydraulic cylinder from the pre-set position to the cut position, the extension being within < 1 15 turn of the drum takes place; and
    Cross cutting of the rolling stock.
    Advantageous embodiments are the subject of the dependent claims. 20
    In the reverse rotation of the drums, the drums are rotated substantially at the peripheral speed of the continuous rolling stock, with a slight lead (e.g., + 0.5%) allowed. On the one hand, the multi-stage extension 25 or retraction of the knife makes it possible to move the majority of the setting path from the starting position to the advancing position (for example 50 mm) by the first hydraulic cylinder relatively slowly, e.g. within 2 to 100, preferably 3 to 20 revolutions of the drum, and 30 on the other hand, the relatively short Anstellweg of the
    Advance position to the cutting position (e.g., 5 to 10 mm) by the second hydraulic cylinder relatively quickly, i. within less than 1 revolutions of the drum to move. As a result, the maximum flow rate per 35 hydraulic cylinders is kept small (2.B. to less than 450 rpm for a single actuator per knife, or to <260 rpm for two actuators per blade), whereby the hydraulic lines, the 25 / 10/2011 08:19
    No .: R708 P.011 / 032 25.Oct. 2011 8:16 201123315
    Siemens CIC P
    No. 4336 p. 12
    i * · · ·
    Rotary feedthroughs, the hydraulic valve but also the pressure supply can be kept small. In the pre-setting position, the blades of the drum do not touch the rolling stock, but have a small distance to the rolling stock. Thus, advancement of the knives, either at a constant speed of rotation of the drums, i. vrromnei * Continuation of the rolling stock Vwaizgut, or during acceleration of the drums. After cross-cutting, i. In the case of cutting, of the rolling stock, the knives are stored within &lt; 1 turn of the drum from the cutting position retracted at least in the pre-setting position, so that the blades of the drum no longer touch the rolling stock. 15 In order to cut several times a long, e.g. Also, when endlessly produced to enable rolling, it is advantageous if, after the transverse cutting of the rolling stock, the steps - retraction of the knives from the cutting position to the pre-setting position, wherein the retraction within &lt; 20 1 turn of the drum takes place; and preferred
    Retracting the knives from the pre-set position to the starting position; be performed.
    After carrying out these method steps, the knives 25 are again in the starting position. The retraction can be done either by a hydraulic cylinder or e.g. by the spring element between the first and second part of the drum. In order to be able to determine the preposition position as simply as possible, without additional control effort, and precisely, it is advantageous for the first hydraulic cylinder to be extended against a first end stop when advancing.
    In order to also simplify the cutting position {e.g. without additional regulation effort) and to be able to determine exactly, it is advantageous that when hiring the second 25/10/2011 08:19
    No .: R708 P.012 / 032 35
    25.Okt. 2011 8:16 Siemens CiC P 201123315
    No. 4836 S, 13 10
    Hydraulic cylinder is extended against a second end stop.
    It is particularly favorable to use the drum shears according to one of the claims 1 to 9 for carrying out the method according to one of claims 10 to 13.
    Further advantages and features of the present invention will become apparent from the following description of non-limiting embodiments, reference being made to the following figures, in which: Fig. 1 is a front view of a drum shears wherein the top drum and the bottom drum are in one Section are shown;
    Figure 2 is a rear view of the drum shears of Figure 1, seen from 20 obliquely above.
    Figure 3 is a schematic representation of the drum shears;
    Figures 4a and 4b are each a sectional view of a drum 25 of a drum shears, with the knife in Figure 4a in the starting position and in Figure 4b in the cutting position.
    5a and 5b are each a hydraulic scheme for controlling the 30 drum shears.
    Embodiment of the invention
    FIG. 1 shows a front view of an embodiment 35 of the drum shears 1 according to the invention. The drum shears 1 serve to cut fast-moving thin steel strips 2. For the execution of the cut, a stroke of about 70 mm is carried out. The two-drum scissors 1 consists of a 25/10/2011 08:19
    No .: R708 P.013 / 032 25. Oct. 2011 8:17 201123315
    S i emens CK P • *
    No. 4336 S, H:: U::
    Upper drum 10 and a lower drum 20, the axes of rotation 8 are rotatably supported at a fixed distance from each other in the frame 27. The two drums 10, 20, each with a knife 26, rotate in the opposite direction. The rolling stock 2 to be cut is brought from the left to the drum shears 1 in the direction of the arrow 3, separated at a desired point in time and removed on the right in the representation of FIG , The typical speed of the rolled strip 2 is 1 - 20 m / s or above. The steel strip 2 usually has a thickness of about 0.5 mm to 5 mm. One
    Knife gap, which should not be greater than 30% of the strip thickness at the time of cutting, therefore requires a very precise adjustment and guidance of the knife. The term knife gap is to be understood in the following, the distance of the two knives in 15 cutting time in parallel position of the knife edges.
    In an operating state in which the steel strip 2 is not yet to be cut, the two knives 26 in FIG. 20 are retracted from the knife drums 10, 20 (output or
    Rest position) and the rolling stock 2 passes uncut the gap formed by the two knife circles. The two drums 10 and 20 rotate mostly or continuously at a blade circle peripheral speed which is substantially equal to the belt speed of the continuous rolled strip 2. In the illustrated embodiment of the inventive high-speed shear 1, the blade circle has a diameter of about 1.5 m, 30 To cut the high-speed steel strip 2, the two knives 26 before a desired cutting time during the rotation of the drums 10, 20 from the retracted Rest position brought to a pre-employment position. This pre-employment position is chosen so that the knives as close as possible - but with a certain
    Safety distance, so that no surface scratches occur, - are brought to the running metal strip 2, so that after a given cutting command · within a revolution 25/10/2011 08:20
    No .: R708 P.014 / 032 25.0kt. 2011 8:17 Siemens CIO P No. 4336 p. 15 «• ♦ · ·« * «♦ ·« 12: • · · ♦ «» »* · * · · 201123315 both knives 26 from the pre-setting position to the cutting position can be extended. The actual separation process is then carried out by the coincidence of the fully extended knife 26. The advantage of this 5 two-stage extension is that for the actual cutting process during a revolution only a short travel of 5 to 10 mm 2urückgelegt. On the other hand, if not cut, most of the time, the two knives 26 are far enough away from the traversing tape in the home or home position to damage the tape surface.
    FIG. 2 shows the high-speed drum shears of FIG. 1 in a rear view. Both knife drums 10, 20 15 are driven by a single drive device 31. Depending on the required drive power, this drive device may consist of one or more motors and possibly a transmission. In the embodiment shown, the drive unit is coupled to the lower drum shaft 25 in the direction of the lower axis of rotation 8. The torque introduced below is transmitted by means of the gear 7 to the two 2ahnräder 4, 5 of the upper drum shaft and fed in the direction of the upper axis of rotation 8 of the drum shears 1. The two end-to-end 25 2ahnräder 4, 5 of the upper axis of rotation together form a split gear, which serves to adjust a backlash! For this purpose, the two gears 4, 5 are biased by means of the clamping device 6 in opposite directions. In the Kämm then the game between the 2ahnrad 7 and the 30 gears 4, 5 is zero. Since the Kämm in no
    Operating condition is solved, the wear of the gear transmission is very low. The synchronization between the upper and lower axes of rotation is always guaranteed. 35 To set the blade gap, the gears 4,5,7 of the gear transmission are each provided with a helical toothing. The helical gearing between the lower gear 7 and the two upper gears 4, 5 allows a setting of the 25/10/2011 08:20
    No .: R708 P. 015/032 25.0cl. 20Π 8:18 201123315
    Siemens CIC P
    No. 4336 p. 16
    Knife gap by moving one of the two axes of rotation axially. In the present example, the upper axis 8 according to arrow 9 {see Figure 3) is moved axially. This is done by the axial drive device 33. The lower axis 8 5 is fixed axially. As a result of the helical gearing, the angular position of the knives can thereby be set to advance or lag behind one another. The advantage here is that for the coupling of upper and lower drum standard gear can be used. 10
    Figures 1, 3 and 4 show the high-speed trimmers in schematic representations. As shown in FIGS. 1 and 4, each drum 10, 20 consists essentially of the first part 11, which in axial continuation forms the actual drum shaft 25. To this first part 11 is formed according to the invention, designed as a hollow profile second part 12, the actual knife holder. The extension of the knife 26 is carried out by two actuators 28, which are arranged in the left and right 20 edge region of the drum 10,20, each
    Actuator comprises a first hydraulic cylinder 13 and a second hydraulic cylinder 14. It would be conceivable to provide one, two or more actuators per knife. In order to bring the knife holder 12 and thus the knife 26 in a radial direction from an initial position to a pre-set position, the two first hydraulic cylinders 13 of each drum (see FIG. 3) are pressurized by a pressure medium. The pressure medium provides a non-illustrated hydraulic pump from the outside 30, wherein the hydraulic fluid via known rotary unions 23 and switching valves 29 is fed into the drum shaft 25. It passes through connecting lines in the cylinder chamber of the first hydraulic cylinder 13, wherein the first hydraulic cylinder 13 35 attached to the first part 10 and formed as a plunger cylinder. In order to extend the knife 26, the spring force must be overcome by a spring element, which in the concrete case comprises two disc spring assemblies 22 made of steel. 25/10/2011 08:20
    No .: R708 P.016 / 032: 14: 25.Oct. 2011 3:18 201123315
    Si emens C1C P
    No. 4336 p. 17 • *
    The two plate spring assemblies 22 serve to keep the first part 11 and the second part 12 independent of the extended position of the knife 26 always under a certain bias or to reset the knife after the cutting process back to the starting position 5. To the knife of the
    Advance position to bring in the cutting position, the two second hydraulic cylinders 14 are extended, wherein the second hydraulic cylinders 14 are connected to the first hydraulic cylinders 13. Both the first and 10 of the second hydraulic cylinders 13,14 have a mechanical stop, so that the positions of the pre-setting position and the cutting position are mechanically fixed.
    The rechteckförraige cross section in the interior of the knife holder 15 12 is formed by a shapeless part and a final piece. At the bottom part of the knife 26 is held by a knife clamping device 19. The knife clamping device 19 can be realized for example by means of screws or hydraulic cylinder, which is not shown here in detail 20. In the cuboidal interior or cavity of the knife holder 12 of the rotatably mounted first part 11 is arranged. Likewise, the first and second hydraulic cylinders 13, 14 for extending the knife. The radial guide between the two parts 11 and 12 is formed as a sliding guide. 25 mutually facing inner surfaces 16 of the hollow profile 12 form sliding surfaces with corresponding outer surfaces 17 of the shaft portion 11. The knife holder 12 is thereby performed very accurately over a large guide length. The precision of this radial guide 21 is maintained over a long 'service life of the 30 high-speed scissors 1 and allows for a long period of operation, a precise adjustment of the knife gap. The construction of the invention is reliable, with relatively little wear and service friendly.
    When cutting the rolling stock 2, the procedure according to FIG. 3 is as follows: Within 10 revolutions of the drums 10, the second part 12 is replaced by the first two 25/10/2011 08:21
    No.; R708 P.017 / 032 35 Oct 25, 2011 8:18 Siemens CIC f 201123315
    No, 4336 p. 18 ·. i5:
    Hydraulic cylinder 13 of the actuator 28 is brought from the starting position to the preposition position,
    Da2u a hydraulic fluid from a hydraulic unit, not shown, via a switching valve 29 to the rotary inlet 5 23 and from there to the first hydraulic cylinders 13 passed.
    Within the last revolution of the drum 10 before the cut, the second hydraulic cylinders 14 are moved from the pre-set position to the cutting position, wherein the stroke of the first hydraulic cylinder 50 to 60 mm and the stroke of the second cylinder is only 5 to 10 mm. After this
    Cut the first and second cylinders 13, 14 are depressurized by means of the hydraulic valves 29, so that the knife holder 12 is pulled back by the disc springs 22 in the starting position. It would of course also 15 possible to use instead of the spring elements 22 double-acting hydraulic cylinders 13,14.
    The above steps have been described for the drum 10. Clearly, these are analogous to the drum 20 in FIG.
    FIG. 4a shows a section through the upper drum 10 of a drum shears 1, wherein the knife holder 12 is in the starting position. Each actuator 28 25 has a first and a second hydraulic cylinder 13, 14, each with a piston 15 a, 15 b, wherein the second piston 15 b is displaced by the movement of the first piston 15 a. The extended position of the first piston 15a is limited by a first end stop 24a; Similarly, the extended position of the second piston 15b is limited by a second end stop 24b.
    FIG. 4b shows the upper drum 10 in the cutting position, the two first and two second hydraulic cylinders 36, 13, 14 being extended,
    According to FIGS. 4a and 4b, the first and second hydraulic cylinders 13, 14 have a so-called double piston 25/10/2011 08:21
    No .: R708 P.018 / 032 25.Oct. 2011 8:19 201123315
    Siemens CIC P
    No. 4336 p. 19 • ·: ifi ϊ
    Arrangement on. Of course, it would also be possible to simply arrange two separate hydraulic cylinders one behind the other.
    FIG. 5a shows a first hydraulic diagram for the control 5 of the first and second hydraulic cylinders 13, 14. The pressure medium is passed from a switching valve 29 via the rotary feedthrough 23 to the hydraulic cylinders 13,14. Between the hydraulic valves 29 and the hydraulic cylinders is in each case a locking device 30, which is designed as a releasable 10 check valve arranged. In the unlocked state, the locking device allows flow into the hydraulic cylinder, but not out of the hydraulic cylinder. This has the advantage that the hydraulic pressure, which increases when cut to 2.5 times the nominal pressure 15 in the hydraulic cylinders 13, 14, is securely shut off. After the cut, the locking devices 30 are unlocked, so that the fluid from the cylinders 13, 14 can flow back to the tank via the rotary unions 23 and the opened hydraulic valves 29. 20
    In contrast to FIG. 5a, FIG. 5b shows a variant of the hydraulic scheme, wherein the hydraulic valves 29 are arranged on the drum. The first and second hydraulic cylinders 13,14 are formed separately and not -25 as in the Fig 5a - in a double piston assembly.
    Although the invention has been further illustrated and described in detail by the preferred embodiments, the invention is not limited by the disclosed examples 30 and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. 25/10/2011 08:22
    No.: R708 P.019 / 032 25. Oct. 2011 3:19 201123315
    Siemens CIO P
    No. 4336 p. 20 • ·
    1 drum shears 2 rolling stock 5 3 movement direction of the rolling stock 4 first upper gear 5 second upper gear 6 clamping device 7 lower gear 10 8 rotation axis 9 arrow 10 upper cutterhead, upper drum 11 first part 12 second part, knife holder 15 13 first hydraulic cylinder 14 second hydraulic cylinder 15a first Piston 15b second piston 16 inner surface, sliding surface 20 17 outer surface, sliding surface 19 knife clamping device 20 lower cutterhead, lower drum 21 radial guide 22 Tel1erfederpaket 25 23 rotary feedthrough 24a first end stop 24b second end stop 25 drum shaft 26 knife 30 27 frame 28 actuating device 29 hydraulic valve 30 locking device 31 Drive device 35 32 Control pressure 33 Axial drive device 25/10/2011 08:22
    No .: R708 P.020 / 032
    权利要求:
    Claims (14)
    [1]
    25, Oct. 2011 8:19 201123315 Sienens C1C P No. 4336 S, 21 »· * · · ·

    1. Drum shears (1) for the transverse cutting of rolling stock (2), comprising: 5 - two oppositely arranged drums (10, 20) which can be driven by means of a drive device (31) with a peripheral speed corresponding to the rolling pass speed each drum (10, 20) has a first part (11) which is rotatably mounted about a rotation axis (8) and a second part (12) which carries a knife (26), between the first part (11) and the second part (12) a guide (21) is formed so that the second part (12) by means of an actuating device (28) between 15 an initial position and a cutting position is slidably adjustable, characterized in that the Actuating means (28) comprises a first hydraulic cylinder (13) and a second hydraulic cylinder (14), wherein the first hydraulic cylinder (13) between 20 the first part (11) and the second hydraulic cylinder (14) and the second hydraulic cylinder (14) is disposed between the first hydraulic cylinder (13) and the second part (12).
    [2]
    2. Scissors according to claim 1, characterized in that the first hydraulic cylinder (13) is designed as a multi-stage hydraulic cylinder.
    [3]
    3. Scissors according to one of claims 1 to 2, characterized in that the first hydraulic cylinder (13) has a first end stop (24a) for determining a pre-setting position, wherein the pre-position is between the starting position and the cutting position, and the second hydraulic cylinder (14) has a second end stop 35 (24b) for defining the cutting position.
    [4]
    4. Scissors according to one of the preceding claims, characterized in that * a spring element (22) between the 25/10/2011 08:22 No .: R708 P.021 / 032
    25 Oct. 2011 8:20 Siemens C1C P 201123315 No. 4336 p. 22 5 10 15 20 25 30 first part (11) and the second part (12) of the same drum (10,20) is arranged.
    [5]
    5. Shears according to claim 1, characterized in that the drive device (31) via a drive shaft (25) with a drum (10, 20) is connected, and a pressure source with a rotary feedthrough (23), the Drehdurchftihrung (23) with the Drive shaft (25), the drive shaft (25) with a hydraulic valve (29) which is arranged on the drum (10,20), and the hydraulic valve (29) with a hydraulic cylinder (13,14) is fluidly connected.
    [6]
    6. scissors according to claim 5, characterized in that the hydraulic valve (29) on the first hydraulic cylinder (13) or on the second hydraulic cylinder (14) is cultivated.
    [7]
    7. Scissors according to claim 1, characterized in that the drive device (31) via a drive shaft (25) with a drum (10, 20) is connected, and a hydraulic valve (29) with a rotary feedthrough (23), the rotary feedthrough (23 ) with the drive shaft (25), and the drive shaft (25) with a hydraulic cylinder (13,14) is fluidly connected.
    [8]
    8. Scissors according to one of claims 5 to 7, characterized in that between the hydraulic valve (29) and at least one hydraulic cylinder (13,14) a, preferably unlockable, locking device (30) is arranged.
    [9]
    9. scissors according to one of claims 5 to 8, characterized in that a control or regulating device via a wireless signal transmission device to the hydraulic valve (29) is connected. 10. A method for dividing rolling stock (2) by means of a drum shears (1), wherein the drum shears (1) comprises two drums (10, 20) and each drum comprises at least one knife (26), 25/10/2011 08:22 Nr .: R708 P.022 / 032 35
    25 Oct. 20Μ 3:20 Siemens C! C P No. 4336 p. 23 201123315 * * 20:. in which the knife (26) can be displaced by a first hydraulic cylinder (13) and a second hydraulic cylinder (14), comprising the following method steps: - advancing the knife (26) by means of of the first hydraulic cylinder (13) from a starting position to a pre-setting position, the pre-setting position being between the starting position and a cutting position and advancing within 2 to 100, preferably 3 to 20, revolutions of the drum (10, 20) he follows;
    [10]
    10 - reverse rotation of the drums (10,20), wherein the peripheral speed of the drums (10,20) corresponds to the passage speed of the rolling stock (2); Extension of the knife (26) by means of the second hydraulic cylinder (14) from the pre-set position in FIG. 15, the cutting position, the extension being within &lt; 1 turn of the drum (10,20) takes place; and - dividing the rolling stock (2),
    [11]
    A method according to claim 10, characterized in that after the cutting of the rolled stock (2), the steps of 20 - retracting the knife (26) from the cutting position to the pre-setting position, wherein the retraction within &lt; 1 turn of the drum (10,20) takes place; and - retracting the knife (26) from the pre-position to the starting position; be performed.
    [12]
    12. The method according to any one of claims 10 to 11, characterized in that ** when advancing the first 30 hydraulic cylinder (13) against a first end stop (24a) is extended.
    [13]
    13. The method according to any one of claims 10 to 12, characterized in that when extending the second 35 hydraulic cylinder (14) against a second end stop (24b) is extended. 25/10/2011 08:23 No .: R708 P.023 / 032
    25- Oct. 2011 8; 20 201123315 S i e m e π &amp; CIC P No. 4336 p. 24

    • * * &lt; * * * * * · * * Ψ · ** ·
    [14]
    14. Use of the Trommelsehere (1) according to one of claims 1 to 9 for carrying out the method according to one of claims 10 to 13. 25/10/2011 08:23 No .: R708 P, 024/032
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    同族专利:
    公开号 | 公开日
    EP2771144A1|2014-09-03|
    AT511327B1|2012-11-15|
    CN103889626B|2016-04-27|
    WO2013060554A1|2013-05-02|
    EP2771144B1|2016-12-28|
    CN103889626A|2014-06-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB678029A|1950-03-02|1952-08-27|Samuel Fox And Company Ltd|An improved machine for cutting strip and like elongated material into predeterminedlengths|
    DE1281793B|1960-06-04|1968-10-31|Siemag Siegener Masch Bau|Drum shears for cutting rolling stock|
    DE2456431A1|1974-11-29|1976-06-10|Demag Ag|ROTATING SHEARS FOR CUTTING HIGH SPEED ROLLED MATERIAL|
    JPS50113983U|1974-02-25|1975-09-17|
    DE2623518C2|1976-05-26|1985-05-09|Mannesmann AG, 4000 Düsseldorf|Rotating shears for cutting rolling stock moving at high speed|
    JP3013415B2|1990-09-04|2000-02-28|石川島播磨重工業株式会社|Cutting equipment|
    DE19542173C2|1995-10-31|2000-08-31|Sms Demag Ag|Drum shears for cutting high-speed strip, especially hot strip|
    DE19637862A1|1996-09-17|1998-03-19|Schloemann Siemag Ag|High-speed shears for cross cutting of rolled strip|
    DE19809813A1|1998-03-09|1999-09-16|Schloemann Siemag Ag|High-speed flying shears for cutting rolled strip|
    US8683898B2|2000-01-19|2014-04-01|Sms Siemag Aktiengesellschaft|Method of operating a high-speed shear|CN105345129B|2015-12-17|2018-12-14|中冶赛迪工程技术股份有限公司|A kind of drum type flying shears|
    CN107053337B|2017-02-20|2019-03-01|旭友电子材料科技有限公司|Circular pressing and cutting machine|
    CN106863473B|2017-02-20|2019-01-22|旭友电子材料科技有限公司|Circular pressing and cutting method|
    CN106956322B|2017-03-21|2019-03-19|旭友电子材料科技有限公司|Position regulator and circular pressing and cutting equipment|
    法律状态:
    2016-06-15| PC| Change of the owner|Owner name: PRIMETALS TECHNOLOGIES AUSTRIA GMBH, AT Effective date: 20160415 |
    2019-06-15| MM01| Lapse because of not paying annual fees|Effective date: 20181025 |
    优先权:
    申请号 | 申请日 | 专利标题
    AT15602011A|AT511327B1|2011-10-25|2011-10-25|DRUM SHEAR|AT15602011A| AT511327B1|2011-10-25|2011-10-25|DRUM SHEAR|
    CN201280052702.3A| CN103889626B|2011-10-25|2012-10-02|Drum shears|
    PCT/EP2012/069429| WO2013060554A1|2011-10-25|2012-10-02|Drum shear|
    EP12769644.1A| EP2771144B1|2011-10-25|2012-10-02|Drum shear|
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