Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/32—Tongs or gripping means specially adapted for reeling operations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/32—Tongs or gripping means specially adapted for reeling operations
  • B21C47/326—Devices for pressing the end of the material being wound against the cylindrical wall of the reel or bobbin
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/02—Winding-up or coiling
  • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
  • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
  • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
  • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
  • B21C47/02—Winding-up or coiling
  • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
  • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
  • B21C47/063—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum with pressure rollers only

Definitions

• the invention relates to a tape reel for reeling a metal band with a winding mandrel, this associated pressure rollers and adjustable deflection shells for pressing the front end of the metal strip against the mandrel.
• metal strips are formed into sheets or wound coils, the so-called coils, to enable transport and further processing by a customer.
• the coils are formed when a metal belt conveyed in a straight direction is to be wound radially in a coiler.
• the metal strip is, for example, a product of a cold or a hot strip mill.
• the temperature of the metal strip can be up to 800 ° C.
• Coiler systems work by guiding a metal strip onto a rotating coiler mandrel.
• guide elements such as deflection shells, pulleys, belt bands or the like. Used.
• the guide elements can be swiveled away from the metal strip. These can, if necessary, when reaching the end of the tape, when the metal strip threatens to lose the train by unthreading from the mill stand or the blowing apparatus of the coiler, be swung back. This prevents the end of the tape from flipping over due to its centrifugal forces or its inherent stiffness and damaging the guide elements and the belt surface.
• a tape reel for winding tapes to coils which has pressure rollers for pressing a belt to be wound against a drum.
• the tape reel further comprises guide skirts for guiding the tape around the circumference of the drum in the circumferential areas between the pressure rollers.
• the pressure rollers and the guide slots are held by frame parts which can be pivoted independently of each other.
• the winding operation works such that a metal strip 1 (FIG. 1) to be wound on a coiler mandrel 2 passes through a reel shaft 3, on the one hand from a deflection shell 4 and on the other hand is formed by a bay flap 5. Further, the metal strip 1 is guided during winding on the coiler mandrel 2 by further deflecting shells 6, 7 and by between the deflection shells 4, 6, 7 arranged pressure rollers 8, 9, 10. The pressure rollers 8, 9, 10 ensure that the metal strip 1 snugly fits around the hemming mandrel 2.
• the process reduces the contact force between the metal strip 1 and the coiler mandrel surface and thereby causes an additional buckling 14 of the metal strip 1.
• a local lifting of the metal strip. 1 From the coiler mandrel 2 happens then inevitably.
• the shape of the tip 12 (FIGS. 1, 2, 3) represents a first exemplary embodiment of the tip of the deflection shell 4 in the prior art. It is advantageously made "blunt" in such a way that, with the maximum coil diameter, it can not dip into the last turn 15 of a coil 16 formed by the metal strip 1 and damage the outer surface of the last turn 15.
• Anwickelvorgang of FIG. 1 instead would be a more pointed shape of the tip according to a second embodiment, as shown in Fig.
• the tip 17 would adversely affect the outer turn 15 and damage it when the coil diameter has reached a certain size or is maximum. The tip 17 would therefore also not feasible feasible because it would prevent a concern of the pressure roller 10 on the last turn 15 of the coil 16 by design.
• this object is achieved in a band reel of the type mentioned above in that at least one of the deflection shells is equipped with a tip which is adjustable relative to the deflection shell.
• the tip of the deflecting shell which is adjustable in accordance with the invention that the metal strip is wound as closely as possible to the coiler mandrel at the beginning of the winding process, but on the other hand, no longer disturbing the tip during the further winding process, and in particular not the application of the last layer to the reel Coil can affect.
• the tip can advantageously be moved away from the winding region of the metal strip after application of the first turn on the winding mandrel, without the deflection bushing then already having to be moved relative to the winding mandrel.
• Particularly suitable is an embodiment of the tip or the deflecting shell carrying the tip, with a contour that is curved at least substantially like the opposite winding mandrel and the metal strip wound thereon.
• the tip can be adjusted either by a rotational movement or a linear movement relative to the deflecting shell, wherein both movements can also be superimposed or executed sequentially.
• the tip can be transferred in the course of a winding from the Andschreibposition at the beginning of the winding process with increasing number of wound turns of the metal strip in a more distant from the mandrel resting position. Before starting a new winding process, the tip is brought back into the pressing position or to the winding mandrel.
• the tip can be driven in different ways.
• a hydraulic, a mechanical or an electromechanical drive mode may be considered.
• the tape reel is configured such that the tip is arranged on a front end of a deflection shell, on a deflection shell head.
• the tip may be formed as Umlenkschalenkopf.
• the tip is adjustable by rotation of Umlenkschalenkopfes relative to the deflecting, in particular from the Andschreibposition pivoted away.
• the distance between the tip and the winding mandrel in the pressing position can be adjusted according to the thickness of the metal strip to be wound up.
• a device for adjusting the pressure position of the tip in particular a hydraulic cylinder for pivoting the Umlenkschalenkopfes, is equipped with a position measuring device. Then, the thickness of the metal strip can be converted directly into a distance measure for the adjustment of the pressure position of the tip.
• the position measuring device advantageously comprises a computing unit for calculating the distance to be set. Furthermore, it is advantageous if the tip can be moved in an area between two stops.
• At least one of the stops can be adjusted, in particular by means of a supplement package.
• the tip or the Umlenkschalenkopf is pivoted away from the winding mandrel or pulled away when a predetermined force is exceeded on the tip.
• FIG. 4 shows a cross section through a band reel with adjustable tip.
• Fig. 5 shows a cross section through a band reel with a detailed illustration of an actuator for the adjustable tip
• Fig. 6 is a diagram of a control loop for position adjustment of the tip shown in Fig. 5, taking into account the force exerted by the metal strip on the tip force.
• the object of the invention is that at each Anwickelvorgang a metal strip 20 (Fig. 4) is wrapped as closely as possible around a mandrel 21. This is to ensure that as early as possible a train in the metal strip 20 is formed, d. H. between the mandrel 21 and a (not shown here) blowing apparatus.
• the metal strip 20 should not detach from the winding mandrel 21 during the winding process. Shocks, as they are in
• the leading edge 24 of the metal strip 20 during winding is guided by a suitably pointed tip 22 tangentially or almost tangentially to the nachge felicitten by the reel shaft 25 metal strip 20.
• a suitably pointed tip 22 tangentially or almost tangentially to the nachgeacrylten by the reel shaft 25 metal strip 20.
• the tip 22 and a deflection shell 27, on which the tip 22 is adjustably mounted both have at least substantially the same curvature as the winding mandrel 21.
• the invention provides a mechanism that allows the tip 22 to pivot away from the coil.
• the tip 22 (FIG. 5) is formed for this purpose on a round rod-shaped Umlenkschalenkopf 30 which is rotatably mounted about at least one pivot point 29.
• the Umlenkschalenkopf 30 with the tip 22 is received in a deflecting shell 28 and mounted there against this pivotally.
• the contour of Umlenkschalenkopfes 30 with the tip 22 is formed in the region of the reel shaft 25 by a straight line 31.
• the shape of the tip 22 is formed by an at least substantially circular or circular contour 32 having at least one radius which is adapted to the radius of the winding mandrel 21 or of the coil 16.
• a double arrow 33 shows the possible rotational or pivotal movements that the tip 22 with the Umlenkschalenkopf 30 opposite the deflecting shell 28 can complete.
• the Umlenkschalenkopf 30 pivots with the tip in a clockwise direction.
• the Umlenkschalenkopf 30 has at least one pivot arm 34 which is rotatably articulated to a piston rod 35 of a pneumatic or hydraulic cylinder 36. This is able to move the Umlenkschalenkopf 30 with the tip 22 in the direction of the arrow 33.
• the Umlenkschalenkopfs 30 Basically come to the movement of the Umlenkschalenkopfs 30 not only rotational movements, but as well as linear movements or both types of movement into consideration; see arrows 33, 37. Accordingly, a plurality of cylinders may be provided which cause one or the other movement of the tip. The different types of movement can be superimposed at the same time or one after the other. So that the task of tangentially guiding the metal strip 20, in particular during winding at different metal strip thicknesses by the front tip 22 optimally, it makes sense, the distance 39, from the surface of the winding mandrel 21 or the outer turn 15 of the coil 16 to the opposite Surface of Umlenkschalenkopfes 30 and to the top 22 is sufficient to make adjustable.
• the hydraulic cylinder 36 is coupled to a position measuring device 38.
• the position measurement can be realized with various principles, for example via a volumetric flow meter, which measures the volume of fluid in the hydraulic cylinder 36.
• an electrical displacement sensor be present. If the position of the hydraulic cylinder 36 is known, an actual value for the distance 39 can be calculated using an algorithm that takes into account the geometry of the deflection shell head 30, the deflection shell 28, the winding mandrel 21 and the winding layers of the metal strip 20 applied to the winding mandrel - The, and then the distance 39 can be set to a desired target value. The adjustment is made by a movement of the tip 22, if necessary with the Umlenkschalenkopf 30 with respect to the deflection shell 28th
• the cylinder 36 In order to protect the tip 22 of the deflecting shell head 30 from damage, it is possible for the cylinder 36 to pivot the deflecting shell head 30 away from the metal strip as soon as a preset upper force limit is reached, thus releasing the front edge 24 of the metal strip 20. With the aid of a control circuit (FIG. 6), a position of the tip 22 and / or the force with which the position of the tip 22 is to be held can be regulated.
• the deflection shell 28 has at least one first stop 40, which limits the rotation of the Umlenkschalenkopfes 30 left-handed and at least one second stop 41, which limits the rotation of the Umlenkschalenkopfes 30 clockwise.
• An edge 42 of Umlenkschalenkopfes 30 can be moved at most up against the stop 41. In this way prevents the Umlenkschalenkopf 30 abuts in a clockwise rotation against the wound metal strip 20 and damage the surface.
• the two stops 40, 41 can be adjusted, for example by supplement packets, so that the Umlenkschalenkopf 30 can be controlled very easily even if the reel to wind only a single strip thickness or bands with a limited band thickness range.
• FIG. 6 shows a position control loop for setting a desired position of the hydraulic cylinder 36 or the tip 22 by means of a subordinate control circuit for force regulation.
• the actual position of the tip is approximated at most only until reaching a predetermined force limit to the predetermined desired position.
• the underlayed force control loop regulates the pressure force of the tip against the metal strip in the current actual position to a predetermined desired force, which may be less than the force limit.
• the pressing force of the pressure roller 26 and / or the distance 43 (FIG. 4) with respect to the winding mandrel 21 can also be adjusted.
• the adjustment preferably takes place in response to the results determined by the control circuit according to FIG. 6.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Winding, Rewinding, Material Storage Devices (AREA)
• Winding Of Webs (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=42352701

Family Applications (1)

Country Status (9)

Families Citing this family (2)

Family Cites Families (13)

• 2009
  • 2009-02-23 DE DE102009010205A patent/DE102009010205A1/de not_active Withdrawn
• 2010
  • 2010-02-22 CN CN201080008909.1A patent/CN102325610B/zh not_active Expired - Fee Related
  • 2010-02-22 US US13/202,897 patent/US20110302981A1/en not_active Abandoned
  • 2010-02-22 UA UAA201111263A patent/UA101557C2/ru unknown
  • 2010-02-22 WO PCT/EP2010/001106 patent/WO2010094506A2/de active Application Filing
  • 2010-02-22 EP EP10706526A patent/EP2398604A2/de not_active Withdrawn
  • 2010-02-22 JP JP2011550485A patent/JP2012518540A/ja not_active Ceased
  • 2010-02-22 KR KR1020117017625A patent/KR20110100662A/ko not_active Application Discontinuation
  • 2010-02-22 RU RU2011138938/02A patent/RU2480304C1/ru not_active IP Right Cessation

Non-Patent Citations (1)

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