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
  • B21C47/02—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 strip reel with at least one against a reel mandrel by means of an actuating device on adjustable pressure roller for pressing band-shaped winding material onto the reel mandrel.
• the pressure roller is rotatably mounted on a holding arm and is movable in an approximately radial direction with respect to the coiler mandrel. the holding arm by means of the
• Actuating device can be moved and pressed against the coiler mandrel and the pressure roller can be moved away from the coiler mandrel by at least the tape thickness by means of an actuating device controlled by a control device when the strip start is approaching. and a method of reeling.
• the pressure rollers of a strip reel are pressed with constant force against the strip layers wound on the reel mandrel until friction between the reel mandrel and the beginning of the strip ensures slip-free reeling of the strip without further support from the pressure rollers. This usually requires several layers of tape on the coiler mandrel.
• the diameter of the coil changes abruptly in the area of the tape request in the form of a step, the height of which corresponds to the thickness of the tape.
• the pressure rollers pressed against the coil beat when the tape is turned
• the band pressure rollers arranged around the band reel are each individually arranged at one end of a swing frame by means of bearing blocks.
• the swinging frame is pivotally supported and is supported by a pressure medium cylinder actuated, which is activated by a controller.
• a pressure medium cylinder actuated which is activated by a controller.
• the time between lifting off and pressing a pressure roller again should be kept as short as possible in order to avoid slippage of the band relative to the reel mandrel, especially if only a small number of pressure rollers is provided.
• one is limited in the prior art due to the large masses to be moved, i.e. it takes a relatively long time for a pressure roller to be properly pressed against the coil after it has been lifted off.
• the pressure roller as known per se, can be moved relative to the holding arm by means of a further actuating device and that the further actuating device is connected to the control device causing the pressure roller to move away when the beginning of the tape approaches.
• the training according to the invention makes it possible. to keep the masses that are to be moved briefly and very quickly during a "step control" movement as low as possible.
• the adjusting device moving the holding arm is used, whereas the other adjusting device is independent only the pressure roller has to move from the first actuating device, ie independently of a movement of the holding arm
• Actuator can therefore be dimensioned much smaller: it only needs to move the pressure roller to carry out the "step control" steps.
• An embodiment preferred according to the invention is characterized in that a bearing of the pressure roller is guided in a guide of the holding arm approximately in the radial direction to the reel mandrel and the further actuating device acts directly on the bearing.
• Holding arms is guided. with another actuator directly attacking each of the bearings.
• a device of this type it is also possible to counteract a lateral run and thus an increasingly eccentric winding of the tape, by applying different contact pressures against the bundle wrap via the two further adjusting devices of the first pressure roller in the direction of entry. By applying an increased pressure on the side on which the band deflects outwards, the band is returned to the center position.
• the holding arm preferably has a guide for a guide piece of the pressure roller for moving the same approximately in a radial direction to the reel mandrel, the length of the guide and the further adjusting device for moving the pressure roller being dimensioned by a multiple of the thickness of the tape to be wound up.
• a preferred embodiment is characterized in that the holding arm has a guide for a guide piece of the pressure roller for moving it in an approximately radial direction to the coiler mandrel, the length of the guide and the further adjusting device for moving the pressure roller in an area corresponding approximately to the thickness of the
• An advantageous method for reeling with a tape reel according to the invention is characterized in that the pressure roller is moved away from the coil roll by at least an amount corresponding to the tape thickness each time the tape start of the tape to be wound is moved past. with the holding arm about to stand still
• the pressure roller is preferably moved away from the bundle roll by at least an amount corresponding to the strip thickness each time the strip start of the strip to be wound is moved past, the holding arm standing still, but the pressure roller being moved back to the position assumed before the strip start moved past in relation to the holding arm and during this backward movement the holding arm is moved away from the coil by the amount of this backward movement.
• This method is particularly expedient since it avoids that the distance between the outermost band layer and the holding arm carrying a pressure roller, which is usually also provided with a guide ruler. gets smaller with every revolution.
• FIG. 1 showing a side view of a tape reel according to a first embodiment
• FIG. 2 showing a detail of a tape reel according to another embodiment
• Fig. 3 illustrates a tape reel according to a weathered embodiment in oblique view.
• a reel mandrel 1 which is optionally expandable.
• three pressure rollers 2 arranged.
• Each of the pressure rollers 2 is arranged in its own holding arm 3, which is designed as a swing arm.
• the holding arms 3 are each pivotally mounted about a pivot axis 4 on a stationary frame 5 and by means of a first actuating device 6, which is hydraulic, pneumatic or electromechanical can be driven, movable relative to the stationary scaffold 5.
• the actuating devices 6 are designed as hydraulic pressure medium cylinders.
• Each holding arm 3 has an extension 8 in the tape running direction 7 or winding direction. which forms a guide runner for the band 9 to be wound up, so that when the pressure rollers 2 are pressed against the coiler mandrel 1, an almost closed guide path is formed.
• Each of the holding arms 3 has guides 10, which are aligned approximately radially to the coiler mandrel 1 and in which bearings 11 arranged at the end of the pressure rollers 2 are displaceably guided.
• a displacement movement of the pressure rollers 2 in the direction of the coiler mandrel 1 and in the opposite direction can be brought about by means of further second actuating devices 12, each of which acts directly on a bearing 11 of the pressure rollers 2.
• the further actuating devices 12 are preferably pressure medium cylinders, in particular hydraulic cylinders.
• the one via a belt guide 13 formed by rollers and a not shown
• Infeed belt guide to the reel mandrel 1 is wound around the reel mandrel 1 due to the clamping force acting between the pressure rollers 2 and the reel mandrel 1 and thus initially forms a first band layer.
• the pressure rollers 2 are moved by means of the second adjusting devices 12
• Coiler mandrel 1 moves away, the second actuating devices 12 being activated by a control device 15.
• the first actuating devices 6 moving the holding arms 3 remain constantly acted upon without being influenced by the control device.
• the brief and sudden movement of the pressure rollers 2 takes place by an amount that corresponds at least to the thickness 16 of the belt 9.
• the second actuating device 12 is activated further until the bearings 11 of the pressure roller 2 in turn assume the position along the guides 10 that the strip beginning 14 has moved past.
• the holding arm 3 is removed from the coil by the amount of this
• Fig. 3. is the holding arm 3 of two side walls 3 ', 3 ", which are connected by a cross member 3'" to form a unit.
• the first adjusting device 6 for moving the holding arm 3 acts on this cross member 3 ′′
• Coiler mandrel I directed ends of the side cheeks 3 ', 3' 'have the guides 10 for the bearings 1 1 of the pressure roller 2.
• the second actuating devices 12 acting on the bearings 11 arranged at the end of the pressure roller 2 can preferably independently of one another support 11 with different, directed against the reel mandrel 1

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Winding Of Webs (AREA)
• Organic Insulating Materials (AREA)
• Manufacturing Of Electric Cables (AREA)
• Storage Of Web-Like Or Filamentary Materials (AREA)
• Replacement Of Web Rolls (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=3493559

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (4)

Family Cites Families (5)

• 1995
  • 1995-03-27 AT AT0054995A patent/ATA54995A/de unknown
• 1996
  • 1996-03-25 EP EP96905587A patent/EP0817688B1/fr not_active Expired - Lifetime
  • 1996-03-25 AT AT96905587T patent/ATE169847T1/de not_active Application Discontinuation
  • 1996-03-25 WO PCT/AT1996/000057 patent/WO1996030137A1/fr active IP Right Grant
  • 1996-03-25 DE DE59600458T patent/DE59600458D1/de not_active Expired - Lifetime

Non-Patent Citations (1)

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