DD208307A1 - WINDING MACHINE FOR FINE STEEL - Google Patents

Abstract

The invention relates to a winding machine for fine steel for the production of rings from low-rolling or vorgekuehltem stabfoermigem rolling in coiler rolling mills. The aim and object of the invention is to make individual components of the winding machine at increased throughput of the system so that loose initial turns and vergroesserte Endwindungen be avoided on the wound ring and at the same time a gentle supply of the rolling stock is guaranteed in the inlet fittings. According to the invention, the object is achieved in that the outer radial boundary of the catching space 45 for the initial turns 34 from kreissegmentfoermigen, protruding through recesses of the winding plate 8, secured to the winding base 41 Fangstuecken 9 or from on board 38 of the segments 43 and the middle Hubteiles 42 of the winding plate fastened catch elements 39 and the outer radial confinement of the end turns 35 is formed by a directly over the catching space 45 arranged Andrückckvorrichtung.

Description

Title of the Invention Winding Machine for Fsinstahl

Field of application of the invention

The invention relates to a winding machine for fine steel for the production of rings from cold-rolled or pre-cooled rod-shaped rolling stock in hasp plants of rolling mills,

Characteristic of the known technical solutions

According to DD-PS 71,086 and DD-PS 88,067 winding machines are known in which the rolling stock via sin guide tube or laying tube with sliding guides (mouthpiece) in the field of catching or G-ripe tools (catch bolt, G-ripeflansch) passes »The Fangstellung- the guide tube is identical to the lowest end position, and also for the upper "reversal position of the guide tube sine fixed limit is applied.

The winding tension is applied against the Walζgutzuführung with brake device or loop control device, either the armature current of the winding drive fixed (limited) or its speed is controlled «The guide tube (laying pipe) is equipped with a rotary actuator and horizontal (DD-PS 88 067) still over a pivot bearing against a spring by the rolling deflectable.

The winding arms arranged perpendicular to the winding base are either hydraulically stretched over the T'sllerhubvorrichtung or collapsible equipped with eccentric bearings »From the reel, the Wal-sgutring is deported.

The disadvantages of the solutions listed in the prior art are the following:

The supply of the ear (lay tube) with slide fitting or mouthpiece: is subject to high sliding wear and causes material surface area, since it must apply the counter-torque to the plastic bending moment in the winding machine.

) 5 Damage to the rolling stock.

The DD-PS 88 067 under load by the Walzgutbiegung horizontally evasive Legsrohr extends only the Yerschleißbereich the sliding guides to the fulcrum;

long bolt according to DD-PS 49 590 and DD-PS 88 06? have not been proven because the rolling spit ze of them when entering the rolling stock in the winding basket was not taken reliably

 The Eangbord to DD-PS 71 086 and DD-PS 88 067 has about the inner diameter of the WiοkeIraumbegrenzung, whereby when catching the rod tip, the coil diameter for the first three to five turns is greater than the resulting Eingauß.endurchmesser, which to avoid grinding of turns on the cooling jacket is much smaller than the inner

IQ diameter of this must be. The catching of the rod end within the Greifbordes according to DD-PS 71 086 is practical ·. not practicable, which is why the grinding of the last Walzgutwindungen be taken on the cooling jacket before the standstill of the winding machine in purchasing. 3s, ₃ more turns are produced compared to the achieved outer diameter. The increased initial and Snd endings have a much faster cooling compared with the compact Hing, which leads to higher tensile strength and less necking in some steel brands The length of the wound ¥ alzaders are extremely detrimental to the subsequent forming processes, and the increased initial and final turns interfere with the subsequent transport and transfer operations, since the catching position of the laying tube also means the lowest achievable position, as the winding train builds upwards Windings on the winding circle and then the Sing forms with its lower limit only significantly above the height of the Fangtordes * This has a lower 7Jicke!

Cs *

Consequence · The bearing surface of the fine steel ring is included? characterized by loose outer and a few inner initial turns, which, in addition to a defective holding form, can also cause material damage during transport due to high contact pressure »

Since the laying tube runs against the fixed end position limitation with each * kib , but when winding under tension the winding plate and the upper guide plate (flange) are not reached from the rolling stock, individual above, below and below the forming singes arise by overwinding of the limits the Yiickeldurchmesseränderung but draft-free turns that arrange themselves eccentrically and disturb the winding order or "in extreme cases at the winding space limit grind" The basic design of the winding plate allows only the deporting of the finished ring from the dished plate, which meant a restriction on the ring masses

Object of the invention

The aim of the invention is to improve the Hingqualität supply by careful Walzgut, by trouble-free catching the Walzgut-, pointed and by orderly winding and to increase the throughput of the plant over large Hingmassen.

Explanation of the essence of the invention;

The object of the invention is to make individual assemblies of the winding machine so that 'loose initial turns and enlarged Endwindungen be avoided on wound Hing and at the same time a gentle supply of the rolling stock is ensured in the inlet fittings «

According to the invention, the object is achieved in that the outer radial boundary of the catching space for the initial 'windings of kreissegmentformigen, protruding through recesses of the winding plate, attached to the winding bottom catch pieces or attached on board the segments and the middle lifting part of the winding catch elements

and the outer radial confinement of the end turns is formed by a pressing device arranged immediately above the catching space

The catch pieces form a section-wise interrupted cylinder surface, wherein between two segments each, a function-related web of the winding plate is present. Sin another feature of the invention is that the arranged on the board, consisting of a lifting part and two opposite segments winding plate Fangeiemente in plan have a vielsckige or, a star-shaped catch contour and are flared down conically · To invest the Endwindungen to the finished Sing a pressing device is provided, which consists of one or more arranged in the housing or a head cylindrical Anrückückrollen which are on the one hand via a swivel lever attached to the cooling jacket or on the other hand via an axially movable displacement slide to the Sndwindungen be pressed. Since the rod end can run in at any point along the winding axis, the length of the winding height corresponds to the pressure rollers which are parallel to the winding axis outside the winding space. "To damp the occurring shocks, the pressure rollers are provided with impact-reducing spring elements is a working cylinder provided,

Furthermore, the invention provides that for receiving the counter-torque to the bending moment of the rolling stock in the winding machine 7 / alzenaustrittsseitig within the pendulum tube at least two closed Hollenkaliber are arranged one behind the other, which are each formed by zwei.bzw · three guide rollers.

For the electrical release of the Wickeltellerhubantriebes a pulse generator is provided in the region of the pivot lever or the Verschiebeschiit- least for the initial position »To limit the swivel range and for fixing.

The catch position of the pendulum tube is arranged at the laying device several fixed pulse generator and the Penäelrohr associated actuators.

4 M 4 1 "4" J

Also part of the invention is the arrangement of an analog or digital encoder on the pivot axis of the pendulum tube bearing for detecting the pendulum tube pivot angle.

Furthermore, the essence of the invention, the application of a setpoint integrator to increase the 7 / icksIdrehzahl during the trapping process in the case of using a large catching space with a small Walzgutbiegemoment _o

embodiment

Reference to two embodiments, the invention will be explained in more detail _β show it:

Fig. 1 is a view of the winding machine with broken winding space when winding the first winding layer for Embodiment I.

Fig. 2, the winding machine in section AA of Fig _e 1 without rolling stock

3 shows the section BB from FIG. 2, FIG. 4 shows the section QG from FIG. 2

Fig _β 5, the view of an 'Isiles the winding machine according to embodiment II with broken winding space and laying device

Fig. 6 is a plan view of a 'Heiles the winding room with pressing device and laying device

FIG. 7 shows a section D-D from FIG. 5 (in an enlarged scale)

Figure 8 is a section _o EE of FIG, S (on an enlarged measure st ab)

fi 3

Fig. 9 shows the schematic structure of a cut nickel ring in the excavated state

10, the plan view of the arrangement of the catch elements according to embodiment II.

According to FIG. 1, the rolling stock 1 reaches the pendulum tube 3 of the laying device 4 at whale temperature or pre-cooled to approximately 773 K from the outlet fitting 2 of a brake driver, which, by suitable control and actuation of the working cylinder 5, moves the pendulum tube 3 into the tube through y '™ drekhnzeichnet fishing position has driven. In this position, the control of the working cylinder 5 is electrically locked via the pulse generator 6 'with actuator 7. Thus, the optimum catch position of the rolling stock on the reel disc 8 at the point "F" is guaranteed, "In the rotating machine parts reel disc 8, 9 pieces catching and wrapping arms 10 limited annular groove 11 (Fig. Here are two principles of action to distinguish · ' First: rolling with lower bending moment and Walzgsschwindigkeiten over 10 m / s is under gravity and centrifugal force gesen the reel disc 8 and the fan pieces 9 printed and the initial windings 34 (Fig «9) on Fangkreis D- ^ ₁ shaped, is applied to the frictional engagement of the opposite of the rolling speed leading catching train. Under tension the rolling stock is then wound on the Wickelarmkreis D _H , wherein the rolling material runs approximately horizontally. Second: rolling stock with greater bending moment and lower rolling speed is in the bending triangle, catching pieces

Winding arms ^: 10 and guide rollers 13 deformed, whereby the winding tension in the rolling stock 1 builds up from the contact forces to the catching tools via the HeibSchalte «The target calibers are located between the guide rollers 13 within the Hollenkastens 14 on the pendulum tube 3 (FIG. 4) , The driving force is Walzgut 1 support the catching process.

C. ¥ if " * 3 I"Jf; ij

isi dc ¹ Wiefeelzug built, the rolling stock has 1 HeibSchluß with the ^w "ickeldoraen 10 v ^. with your rolling one of the previously wound location, The bending moment in the rolling stock 1 torque is applied by the wicks! against the pairs successive Eollenkaliber where The guide rollers 13 are advantageous in terms of wear and gentle rolling installation and allow the wire outlet at the horizontal deflection angle / 9 (Fig. 2) Thus a device for the horizontal evasive pivoting movement of the laying device 4 can be dispensed with 4 and thus to ensure the catching process is sufficient pivoting about the axis 16 by means of the adjusting device 15 "After a maximum of ten turns of the fishing process is completed, d" h »the winding tension has reached its full height corresponding to the set armature current of the winding machine motor and dis winding arms 10 run synch ron to the rolling stock speed. The upstream driver then runs only at low power consumption, the cylinder is, for example, time indicator switched on a Walζgut indicator and leads to Fig, 1 in the direction shown, the upward movement of the Pendeirolires 3 to the upper deflection point (V "= θ) where the pulse generator 17 is actuated by the actuating element 7, whereupon the directional valve combination of the hydraulic working cylinder is controlled in blocking position to realize a holding time or in Heversierstellung * Taking Haltete it and critical deflection angle "TJ" results in the upper Hingbegrenzung on the winding arms 1O ₀ Der Angle "Jj" depends on the rolling stock and winding diameter and amounts to rolling stock diameter 12 to 42 mm between 3 ° and 7 ₃ 3 ° · After reversing the working cylinder 5 moves the Pendeirohr- 3 below the catching position y _" to the lower deflection point ^ ', in which the pulse generator 18 by the Actu is actuated and also the directional control valve combination of the working cylinder 5 again in Sperrsüellung for realization

a holding time or in reverse position controls. Also in the lower deflection position, the ringing limit of the holding time and deflection angle is £ 7. In order to exclude the overlapping of the singing limits, the holding times of the pendulum tube 3 in the positions ^ = O and y ~ γ are shortened as the winding diameter increases from layer to layer j so that a winding ring as in the illustration according to S ¹ Ig * 9 results »The winding tension is applied by the winding torque of the winding machine drive against the friction in the rolling feed line and, against the ertigwalzgerüst or blowing or skin pass mill of the rolling mill. The minimum winding tension results from the equilibrium condition with half the centrifugal force on the fine steel sheet of length H ₅ since the rolling stock must not grind on the cooling jacket 20 of the winding machine · This minimum winding tension is maintained by the adjustable winding torque * Has the rolling stock end of the ring to be wound left the finishing stand , the speed setpoint of the .Bremstreibers is lowered, so that it delivers a braking torque to the rolling stock, .Das now the reaction 'to the winding moment provides. If the end of the rolling stock has reached the bobbin diverter located in front of the winding machine, the winding machine and the brake driver are braked together by countercurrent. Simultaneity is the arranged in the half-sided housing 22, the pressure roller 'pivoted' 21 (Fig. 2) by means of the pivot lever 23 by the angle QL by the "working cylinder 24einge-. The pressure roller 21 thus contacts the ring outer diameter Da and causes a pressing-and The effect of centrifugal force and reversible deformation on the last windings compensates for the end windings 35. Thus, the "roller" 21 compensates for the diameter Da _{7715 of} the third windings 35 approximately in the size of the outside diameter of the ring Since to keep and avoid grinding on the cooling jacket 20 "Compared with the rest of the ring have ükidwindungen hardly significant differences in the cooling behavior on" Once the roll plate '8 is stationary, the working cylinder 24 pivots the pressure roller 21 in the starting position,

dei? Pulse generator 25 is actuated by the Betätigungseleiusnt 25 and lifted the lock of the ^ ickeltel-I ^ rhub-es .__ on · The finished Hing is dug through the reel disc 8 and then passed in a known manner to a requestor «The pressure roller 21 and the guide rollers 13th be sprayed from the pipes 27, 28 with a coolant which flows through the connections 29, 30 ia a water tank 31 «About the Hohranschlüssa 32» 33, the bearings of the guide rollers 13 are supplied with lubricant «

In exemplary embodiment II of FIG. 5, the rolling stock 1 passes from the brake driver 36 in the pendulum tube 37 of the laying device 4, by a suitable control means of the working cylinder 5, the pendulum tube 37 before the arrival of the fold well initially in the designated by Vf- ^ ₁ catch position drove. The reel disc is in three parts and consists of the lifting part 42 and the two segments 43 "The point of impact of the rolling stock tip is approximately at point F on the reel disc inside the annular catching space 45!" The catching space 45 passes through the winding arms 10 of the lifting part 42 delimits the segments 43 of the tipping plate and the catching elements 39 mounted on the board 38. By varying the design of the fanning device 39, the outside diameter of the initial turns to be achieved, shown in dashed lines in FIGS.

The capture process proceeds according to the principles of action described firstly and secondly in Embodiment I, but receives subsequent modifications; To avoid loose turns in the lower region of the winding basket and to create a good Hingauflagefläche the use of a setpoint integrator for speed control of the winding basket is provided. The 7 / alzgut 1 is introduced by means of the pendulum tube 37 tangentially into the Fangbordkreis 38a. The application of the counter-torque to the bending moment in the rolling stock 1 with gentle guidance and a long service life is achieved by a plurality of successive roller guides with three-roller arrangement. At the inlet of the rolling stock, the speed of the winding basket is adjusted so that the

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Peripheral speed of aaf the projecting ring outer diameter limiting catch tray 38a corresponds to the rolling stock speed. Thus, a v / eicher, safe entry of rolling stock with low bending moment possible «As a result, the speed is now continuously increased by the setpoint integrator depending on the rolling stock diameter and the winding speed · This catching space 45 fills to approximately tuck height 45 (Fig. 7), formed by the upper surface of catch element 39 and board 38 * is reached the speed at which the peripheral speed of the Wickelarmkreises corresponds to the Walzgutgeschwindigkeit, there is a switch to "coils" and speed lead, whereby a tightening of the rolling stock "1 takes place The resulting partial ring becomes effective as a flange during the winding process, thus preventing the subsequent turns from slipping off »

In a further variant for preventing the formation of cavities of the trap space 45 by the installation of appropriately trained catch elements 39 to a diameter

D of Fangbordkreises 38b limited, which is smaller than the projected outer diameter. The rolling stock starts at. a little speed advance of Fangbordkreises 38b through the inclined standing pendulum tube "37 fed to the narrowed catching space 45, Hachdem the Walzgutanfang has run and receives by friction and bending forces after a few turns train done by, die'Bewegung the pendulum tube 37, the layer by layer winding of the rolling stock 1 · The upper surfaces of the catch elements 39 and 38 of the Bordes serve in this case as flange to the lower Hingbegrenzung, As I said, the Walzgutspit ze meets at a certain, but the lowest possible angle $ * -a to the horizontal on the lifting part 42 or

Segments 43 of the winding plate at point F on. Since a rise of the rolling stock point beyond the board 38 is to be avoided in any case, it is useful to provide the catch elements 39 with a slight inclination. The affection does not hinder the lifting of the ring.

3 I Ί | Ί ^ /

In order to support the Walzgutmitnähme in ümängsriehtang the board 38 i3t it advantageous if the fishing tools 54, as in Pig. 10 as possible embodiments in plan form the shape of a polygon or star in their layout. This positive effect is based on a certain form-fitting with the beginning of rolling stock "For example, by the polygonal shape you can produce the fishing tools 54 as simple elements in the form of wear strips economically.

The embodiment of the invention continues to be concerned with the prevention of Überwi'ckelns the upper Hingbegrenzung. For this purpose, an incremental encoder 53 is arranged on the pivot joint of the pendulum tube 37. By means of this encoder 53, the pendulum tube 37 is digitally controlled in such a way that, after each winding position, the pivot angle v * is "program-dependent" by a specific amount. By this measure, the upper surface of the Hinges according to FIG 9 is formed slightly conically stepped out, which means that when Wickelzugeinwirkung ^s in slipping of the turns on smaller winding diameter even with the support of the gravitational effect is avoided «Furthermore, by using the encoder 53rd the ability to automatically control the swing angle y of the pendulum tube 37 when changing the Hingmasse so that is kept constant by adjusting the Hinghöhe the outer diameter. In addition, the pendulum tube 37 can advantageously be controlled via the encoder 53 into the catching position y * p ¹ ^ lower reversing position y _α .

The pressing device for loose Bndwindungen shown in Fig. 6 has the following voa embodiment I deviating design:

In the recess of the fixed cooling jacket 44 on the winding basket press in pairs spaced-apart pressure rollers 47 radially against the nearly fertiggewickslten Hing. In this case, the pressure rollers 47, which are mounted in a displacement slide and pivotable head piece 49, are pressed in linearly by a working cylinder 50, preferably only for the phase of the endless wound wound 35. The working cylinder 50 is supported in a guide housing 52 "

To avoid WalzgutheSchädigungen it is expedient to the media pressure depending on. Setting the rolling stock diameter »The pressing of the bundle turns 35, in particular in the case of bending-resistant rolled stock, is predominantly achieved by means of a forming profile.

) 5 caused by the bending effect of the three-point installation of the rolling stock at the contact points of the pressure rollers 47 and the wound ring. For the shock absorption 49 adjustable springs are provided in both pivoting directions of the head piece 49. "As soon as the winding machine is stationary with the finished rolling ring, the pressing device moves out of the region of the lifting part 42. According to embodiment I, a pulse generator responds which locks the position control the winding plate rotation angle is canceled, so that the lifting part 42 and the segments 43 of the winding plate are controlled in the S ^ rQ ung, in which a conveyor can take over the rolling stock from the excavated Kubteil 42 form-fitting Fig. 1G shows in plan view the arrangement and specific star-shaped catching contour of catching tools 54 on board 38

IQ on the reel plate for gripping rolling stock with a large bending moment »

Claims (4)

Invention; s to saying 1. Winding machine for fine steel with vertical winding axis, a catching area with Wiekelarmen and aushebbarem Windelteller for 3ilden, picking and lifting the Feinstahlringes and located in front of the winding space Pendei-. characterized in that the outer radial boundary of the catching space (45) for the initial turns (34) of circular segment, by recesses of the winding plate (8) protruding, on the winding base (41) attached catching pieces (9) or from on board (38) Segments (43) and the central lifting part (42) of the ickeltellers arranged catch elements (39) and the outer radial confinement of Sndwindüngen (35) consists of a directly above the catching space (45) arranged pressing device ο 2 »winding machine according to item 1, characterized in that the catch pieces (9) form a partially interrupted cylinder surface and between each two segments, a functional web of the winding divider (8) is present. 3. Winding machine according to item 1, characterized in that on the board (38) of the au3 a lifting part (42) and two opposite segments (43) existing winding plate arranged catch elements (39 or »54) isi outline have a polygonal or star-shaped catch contour ,, 4. winding machine according to item 1 to 3, characterized in that the catch elements (39bzw. 54) are widened conical down. 5. Winding machine according to item 1, characterized in that the pressing device consists of one or more in a housing (22) or head piece (49) arranged cylindrical pressure rollers (21 or »47), on the one hand via a cooling jacket (20) fixed pivoting lever (23) sa sm 'S ' 3 '' or on the other hand via an axially movable displacement slide to the Sndwindungen (35) can be pressed. 6 winding machine according to item 5, characterized in that the pressure rollers (21 or 47) are arranged parallel to the winding axis and correspond in length to the height of the winding. 7, winding machine according to points 5 and 6, characterized in that the pressure rollers ^ 47) are provided with impact-reducing spring magnets (51), 8 "winding machine according to item 5 to 7", characterized in that the displacement slide (48) in a guide housing (52) is mounted. 9ο winding machine according to item 8, characterized in that the pivoting lever (23) and the displacement slide (48) [5 sin working cylinder (24 _} 50) is assigned » 10, .. Winding machine according to item 1, characterized in that 'rolling stock exit side within the pendulum tube (3 or 37) at least two closed roll caliber (12) are arranged one behind the other, each of two or three guide rollers (13 or' 40) become, ) 11 «winding machine according to item 5 and 3, characterized in that. in the region of the pivot lever (23) and * of the sliding carriage (43) a pulse generator (25) are arranged. 12 · winding machine according to item 1, characterized in that on the laying device (4) a plurality of stationary pulse generator (6, 17, 18) and the pendulum tube (3) the associated 'actuating elements' (7, 19) are arranged. 13 "winding machine nachPunkt 1, characterized by the arrangement of an analog or digital encoder (53) sn the pivot axis of the pendulum tube bearing. - For this. 7 sheets of drawings -