EP1790597B1 - Rollenwechsler mit Antrieb - Google Patents

Rollenwechsler mit Antrieb Download PDF

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Publication number
EP1790597B1
EP1790597B1 EP07103429A EP07103429A EP1790597B1 EP 1790597 B1 EP1790597 B1 EP 1790597B1 EP 07103429 A EP07103429 A EP 07103429A EP 07103429 A EP07103429 A EP 07103429A EP 1790597 B1 EP1790597 B1 EP 1790597B1
Authority
EP
European Patent Office
Prior art keywords
roll
changer according
roll changer
receiving means
electric motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07103429A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1790597A1 (de
Inventor
Walter Ritter
Klaus Röder
Karl Rösch
Hartwig Trutschel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority claimed from DE200410004759 external-priority patent/DE102004004759B4/de
Priority claimed from DE200410030490 external-priority patent/DE102004030490A1/de
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1790597A1 publication Critical patent/EP1790597A1/de
Application granted granted Critical
Publication of EP1790597B1 publication Critical patent/EP1790597B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
    • B65H23/185—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations motor-controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B65H16/103—Arrangements for effecting positive rotation of web roll in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2207—Changing the web roll in winding mechanisms or in connection with winding operations the web roll being driven by a winding mechanism of the centre or core drive type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/066—Electrical brake devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4134—Both ends type arrangement
    • B65H2301/41346—Both ends type arrangement separate elements engaging each end of the roll (e.g. chuck)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/418—Changing web roll
    • B65H2301/4185—Core or mandrel discharge or removal, also organisation of core removal
    • B65H2301/41852—Core or mandrel discharge or removal, also organisation of core removal by extracting mandrel from wound roll, e.g. in coreless applications
    • B65H2301/418523—Core or mandrel discharge or removal, also organisation of core removal by extracting mandrel from wound roll, e.g. in coreless applications by movement of the wound web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/418—Changing web roll
    • B65H2301/4185—Core or mandrel discharge or removal, also organisation of core removal
    • B65H2301/41856—Core or mandrel discharge or removal, also organisation of core removal by stripping core from mandrel or chuck, e.g. by spring mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4187—Relative movement of core or web roll in respect of mandrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
    • B65H2403/725—Brakes
    • B65H2403/7255—Disc brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/90—Machine drive
    • B65H2403/94—Other features of machine drive
    • B65H2403/943—Electronic shaft arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/24—Specific machines for handling web(s) unwinding machines
    • B65H2408/241—Turret
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/24—Specific machines for handling web(s) unwinding machines
    • B65H2408/241—Turret
    • B65H2408/2415—Turret specified by number of arms
    • B65H2408/24153—Turret specified by number of arms with two arms

Definitions

  • the invention relates to a reel changer with a drive.
  • a reel changer for a printing press is known.
  • the drive of the supply rolls can take place according to an embodiment only on one side of the supply roll, whereas the supply roll is mounted on the opposite side without drive in a rotary bearing.
  • From the DE 102 24 839 A1 is also known a drive for a paster on a printing press.
  • the DE 94 09 754 U1 discloses a winding machine for bandages and bandages, wherein the winding axis may be driven by a synchronous motor.
  • the DE 41 26 392 C1 and the DE 31 11 990 C2 describe that it is known in the field of winding devices to use synchronous motors.
  • the post-published EP 1 460 010 A2 describes a machine with a preferably designed as a synchronous motor and for direct drive of a winding core of a winding roll serving electric motor.
  • a 1 599 036 is a winding device with one of segments composite spreading head known.
  • the segments are arranged in a ring around a rotatable winding mandrel provided with cam surfaces and can be moved radially towards the axis of the mandrel when moving axially relative to the winding mandrel.
  • the segments are held by an axially acting in one direction spring in its spread position. They are by a pressurized piston, which is effective against the force of the spring in the opposite direction, detachable from the spread position.
  • the EP 0 981 443 B1 discloses a hollow shaft motor of a rotating cylinder or a roll in a rotary printing machine.
  • the EP 1 155 987 A2 refers to a drive for a reel changer with at least one motor as the center drive of a paper roll.
  • the torque or the driving force of the motor is transmitted via clamping pins on the core of a paper roll.
  • the WO 02/24564 A1 describes an actuator for a mandrel in a reel changer.
  • a sleeve can be fixed.
  • To fix the sleeve on the mandrel are pressed by compression springs toggle lever on provided jaws to the outside.
  • An actuating element can be adjusted axially for actuating the clamping jaws in a hollow shaft by a fluid-driven piston, so that the clamping jaws are pressed outwards and fix the sleeve.
  • an ejector device is arranged on the mandrel.
  • the ejector device is mounted axially displaceably on the hollow shaft and rotates together with the hollow shaft about a central axis in a housing.
  • the post-published WO 2005/056195 A1 discloses an electric motor with permanent magnets for a paster of a printing machine.
  • the WO 99/55533 A shows a roller or cylinder of a printing press, which is driven by a permanent magnet electric motor.
  • the invention has for its object to provide a drive of a paster of a printing press.
  • An advantage of the drive according to the invention is, in particular, that a field-weakenable synchronous motor is provided as the electric motor.
  • Such synchronous motors have an extraordinarily wide power spectrum and can be produced inexpensively. Due to their motor characteristics, they are particularly well suited for driving reelstands on a printing machine.
  • drive means for reel changers drive cones are normally provided, which come to transmit torque on the inside of the sleeve of the supply roll. These cones are driven by the drive shaft of the drive provided for the electric motor.
  • the drive shaft of the synchronous motor itself torque-transmitting to the supply roll, in particular on the sleeve of the supply roll, can be brought into engagement.
  • On the rotor of the synchronous motor of the drive cone is directly, in particular rigid, arranged.
  • the driver elements on the drive shaft which are provided for torque transmission, should preferably rigid, in particular in one piece, be connected to the drive shaft. In this way, the otherwise required and extremely complicated adjusting mechanisms for adjusting the driver elements can be saved.
  • An advantage of the reel changer which is driven only on one side by means of an electric motor, lies in particular in that the non-driven pivot bearing can also absorb axial forces along the center axis of the supply roll, in particular during the Aufachsvorganges. As a result, it is thereby possible in particular to dimension the axial bearing on the side of the electric motor correspondingly weaker.
  • the recordings for storage of the supply roll should preferably be designed to be identical on both sides of the supply roll in order to save costs by using the same common parts. Both recordings should be rotatably mounted, with only one recording is driven by the synchronous motor.
  • a free beginning of the supply roll can be rewound onto the supply roll with the aid of the synchronous motor.
  • Another advantage is in particular to combine the previously known advantages of a tensionable mandrel with the advantages of a direct central drive a supply roll. This reduces the component complexity and the complexity of the mechanics.
  • the device is constructed overall more compact and easier with at least as high functionality.
  • a fixing device can be adjusted in a working position and in a rest position to fix the sleeve of a supply roll on the recording and to solve again.
  • the Drive torque is transmitted through a hollow shaft as a motor drive shaft, which is preferably formed integrally with the receptacle on the supply roll.
  • the fixing device on the receptacle can be actuated by an axially mounted in the hollow shaft actuator.
  • the hollow shaft has recesses in which a spring device is arranged.
  • the spring device ensures that a sleeve tension acts on the adjusting element, so that the adjusting element returns the fixing device to a rest position fixing the supply roll.
  • an actuating device is arranged on the opposite side of the receptacle in the axial position, which displaces the actuating element into a work position which dissolves the supply roll. It is additionally provided in the rest position, a decoupling between the fixed actuator and the hollow shaft with the rotating actuator by a distance between these two to prevent friction between the fixed actuator and the rotating actuator.
  • the actuator is a diaphragm cylinder arranged in the extended axial direction of the actuator.
  • the actuator is a lever mechanism with a lever arm which is actuated by a diaphragm cylinder, which is arranged in a parallel axial direction to the electric motor.
  • Two mandrels for guiding a supply roll can each have an electric motor drive.
  • the required power of the torque is distributed from an electric motor to two electric motors, which can be dimensioned correspondingly smaller.
  • an ejector unit for stripping the roll of material are arranged by the recording.
  • the actuating element can be used or, preferably, pneumatic cylinders can be provided which are formed parallel to the central axis.
  • Fig. 1 is a roll changer 01, in particular a web-fed rotary printing press, for storing a supply roll 02 with a width of z. B. 300 mm to 1000 mm, on which a material web, in particular a printing material web is wound, shown in partial cross-section.
  • a motor 03 for one-sided drive of the supply roll 02 is a motor 03, in particular a synchronous motor 03, is provided.
  • the synchronous motor 03 has a drive shaft 04 which projects beyond the housing of the synchronous motor 03 on the side facing the supply roll 02. This projecting side of the drive shafts 04 serves as a receptacle 06 on which the supply roll 02 can be rotatably mounted.
  • a pivotally mounted on the roll changer 01 support arm 08 can be adjusted in the direction of the longitudinal axis of the supply roll 02, so that the receptacle 06 of the synchronous motor 03 provided on the inside of the supply roll 02 Sleeve 09 comes into engagement.
  • radially projecting driver elements 11 are provided on the receptacle 06, which are integrally formed on the material of the drive shaft 04 and a torque form and frictionally can be transferred to the supply roll 02.
  • a non-driven pivot bearing 14 is provided, which receives the weights of the supply roll 02 on the opposite side of the synchronous motor 03 side.
  • a receptacle 16 On the supply roll 02 facing side of the pivot bearing 14 is a receptacle 16, which is substantially identical to the receptacle 06 and also on the inside of the sleeve 09 comes into engagement.
  • a drive-less shaft 17 is provided with which the pivot bearing 14 is supported in the direction of the longitudinal axis of the supply roll 02 on the support arm 12, so that larger axial forces can be absorbed by the pivot bearing 14.
  • At least the distances of the bearings of the two receptacles 06; 16 are the same.
  • a bearing point of the receptacle 06; 16 is on the opposite sides of the support arm 08; 12 arranged.
  • a distance between the two bearing points of the receptacle 06; 16 corresponds approximately to the width of the support arm 08; 12th
  • Fig. 2 the structure of the synchronous motor 03 is shown enlarged in cross section.
  • the receptacle 06 with the driver elements 11 is machined out of the drive shaft 04 by correspondingly suitable machining processes.
  • An additional cone between sleeve 09 and drive shaft 04 can thus be omitted.
  • the synchronous motor 03 is designed in the manner of a field-weakening synchronous motor 03, wherein it can be operated with a field weakening up to a ratio of 1:10.
  • the motor 03 has six poles and electrical excitation.
  • the rotor of the synchronous motor 03 has poles of permanent magnets and the stator of the synchronous motor 03 has an electrical excitation.
  • the permanent magnets preferably have rare earth materials.
  • a creep torque of the synchronous motor 03 is in the range of 100 Nm to 200 Nm.
  • a maximum torque is in the range of 600 Nm to 800 Nm, in particular at about 700 Nm.
  • the synchronous motor 03 has a theoretical idling speed in the range of 500 rpm. up to 600 rpm.
  • the synchronous motor 03 is preceded by a frequency converter for speed control.
  • a rotation angle sensor is provided on the motor 03.
  • a rotation axis of this rotation angle sensor is arranged coaxially with the axis of rotation of the rotor of the synchronous motor 03.
  • a rotation axis of the supply roll 02 and a rotation axis of the rotor of the synchronous motor 03 are arranged coaxially with each other.
  • a cooling device On the synchronous motor 03, a cooling device is provided, which is designed in the manner of a fan wheel. In generator mode, the synchronous motor 03 itself can be used as a braking device.
  • Another possibility for cooling the motor 03 is the cooling by means of water or a cooling fluid.
  • Several motors 03 may be connected to a common coolant supply.
  • the synchronous motor 03 is designed as a plug-on motor.
  • a braking device 24 in particular a friction brake, is arranged on the synchronous motor 03 ( Fig. 12 ).
  • the braking device 24 is preferably designed as a disc brake.
  • the brake 24 on the one hand supports the braking effect of the engine 03, z. B. when braking the roll of material 02 during normal stop, especially during rapid stop or during control operations.
  • the brake 24 serves as a holding brake to z. B. the Adhesive preparation to the roll 02 to perform.
  • the brake is adjustable, in particular braking force variable, controllable or in another embodiment, it is clocked on and off.
  • the braking device 24, in particular a disc of a disc brake device, is preferably arranged concentrically with the rotor of the electric motor 03 and connected in a rotationally fixed manner to the latter, in particular to the hollow shaft 04.
  • FIG. 3 and FIG. 4 the receptacle 06 is shown enlarged with the driver elements 11.
  • Fig. 5 shows a second embodiment of a non-driven pivot bearing 18, which can be used on a reel changer 01. Again, a trailing shaft 19 is provided for the interception of axial forces, with which the pivot bearing 18 is supported on the opposite side of the receptacle 16.
  • Fig. 6 shows a schematically illustrated roll changer 01 in cross section.
  • the drive shaft 04 is on the supply roll 02 side directed over the housing of the synchronous motor 03, not shown, and serves as a receptacle 06; 16 for the supply roll 02.
  • the two receptacles 06; 16 of the roll changer 01 each have their own servomotor 21 for adjusting the recording 06; 16 in the axial direction of the supply roll 02. It is advantageous if the servomotors 21 with the receptacles 06; 16 are movable. This is z. B. a rack on the carrier of the roll changer 01, engage in each of the servomotors 21 driven gears.
  • Fig. 7 is a further embodiment of a reel changer 01 with a motor 03, preferably a synchronous motor 03, as already described, shown schematically simplified in cross section.
  • the electric motor 03 as a drive shaft 04, a hollow shaft 04, which is connected to a receptacle 05, preferably in one piece, and at the same time rotor of the electric motor 03 is.
  • the mandrel 05 is a mandrel 05 and has as a fixing device 26 adjustable jaws 26, the in Fig. 7 abstracted and symbolized as cone are represented. With the clamping jaws 26, the sleeve 27 of a supply roll 02 can be fixed.
  • the hollow shaft 04 is an actuator 29.
  • the actuator 29 is a to the central axis of the electric motor 03 axially arranged actuating shaft 29 on the side of the mandrel 05 with the clamping jaws 26 by a known from the prior art mechanism, such as in of the WO 02/24564 A1 disclosed is connected.
  • the clamping jaws 26 are either pressed outwardly against the sleeve 27 or retracted inwardly to the central axis.
  • the jaws 26 are retracted when a new supply roll 02 is to be received or the sleeve 27 of the supply roll 02 is to be released from the mandrel 05 again.
  • the actuating shaft 29 is adjusted by an actuator 30 at the end facing away from the mandrel 05.
  • the actuator 30 may be any device known in the art that can displace a body under pressure and / or tension in at least two positions.
  • the actuating device 30 may be a fluid-driven piston known from the prior art, which applies its pressure forces in the axial direction on the actuating shaft 29 and is therefore symbolic as an arrow in Fig. 7 shown.
  • the hollow shaft 04 has recesses 31 in the form of an axial cylinder, in which disk springs 32 are arranged as a spring device 32, from the side facing away from the receiving mandrel 05.
  • the plate springs 32 are bounded by a piston 33 which is fixedly connected to the actuating shaft 29.
  • the disc springs 32 are thus in one sleeve-shaped intermediate space 31 which is formed on the side facing the mandrel 05 by a fixed stop in the hollow shaft 04 and the movable piston 33 on the opposite side. If the disc springs 32 are in a relaxed resting state, then the clamping jaws 26 in the receiving mandrel 05 are pressed outwards to the maximum.
  • the hollow shaft 04 is rotatably mounted in the electric motor 03 via roller bearings 34.
  • the Fig. 8 shows a further embodiment of the central drive, which is provided at least at one of two for receiving 05 a roll of material 02 arranged receiving mandrels 05 in a known roll changer 01.
  • the Fig. 8 shows a partially cutaway cross-section of the electric motor 03 with the hollow shaft 04.
  • the hollow shaft 04 is rotatably supported by roller bearings 34 and simultaneously forms the drive shaft 04 of the electric motor 03 from. For reasons of simplification of the known mandrel 05 is not shown.
  • the piston 33 is screwed.
  • the hollow shaft 04 forms with the actuating shaft 29 and the piston 33 has a sleeve-shaped cavity 31, in which the disc springs 32 are arranged.
  • the piston 33 is pressed by an actuator 30 in the direction of the mandrel 05, not shown, in a working position to the, in Fig. 7 shown jaws 26 to pivot inward.
  • the actuating device 30 is arranged axially in the extended direction of the actuating shaft 29 in this particular embodiment.
  • the actuating device 30 comprises a diaphragm cylinder 35, which is pneumatically controlled. This is advantageous because compressed air is usually present in a manufacturing environment. In the rest position, in the relaxed state of the plate springs 32, the piston 33 and a stopper plunger 36 of the diaphragm cylinder 35 touch Not. Thus, a friction between the stationary stopper plunger 36 and the rotating piston 33 is avoided.
  • a so-called encoder 37 is coupled to the drive shaft 04 via belts or a toothed chain. With the encoder 37, the exact position and the speed of the electric motor 03 is detected and the electric motor 03 driven accordingly. Incidentally, reference is expressly made to the specifically shown arrangement, to the drawings thereof as essential.
  • the Fig. 9 shows the central drive Fig. 8 ,
  • the actuating device 30 is designed as a lever mechanism.
  • a lever arm 38 is actuated by a diaphragm cylinder 35.
  • the diaphragm cylinder 35 is arranged with a parallel axis to the central axis of the electric motor 03.
  • the lever arm 38 extends across the radius of the electric motor 03 with an extended end.
  • a fixed pivot point is arranged at the outer radius of the electric motor 03 at the shorter end of the lever arm 38.
  • a fixed pivot point is arranged at the opposite end of the lever arm 38 is movable in the axial direction and is adjusted by the diaphragm cylinder 35.
  • the movable piston 33 In height of the movable piston 33 is a ring or a ball which presses on the piston 33 for actuating the actuating element 29 when the lever arm 38 is pivoted by the diaphragm cylinder 35 in the axial direction to the mandrel 05.
  • the diaphragm cylinder 35 according to smaller than in the embodiment according to Fig. 8 be dimensioned. This lowers the manufacturing costs and the required fluid pressure for the cylinder 35.
  • Such an arrangement makes the central drive more compact than the embodiment according to FIG Fig. 2 ,
  • the Fig. 10 shows a third embodiment of the central drive.
  • two pneumatic cylinders 39 with a stroke of preferably 125 mm, are arranged parallel to the center axis of the electric motor 03 to form an ejector unit 40.
  • the ejector unit 40 pushes the sleeve 27 of the supply roll 02 from the mandrel 05 when the supply roll 02 is to be replaced.
  • the ejector unit 40 is stationarily concentric with the mandrel 05 positioned on the central drive and thus does not move with the supply roll 02 with.
  • the Fig. 10 shows in cross-section clearly the jaws 26 of the mandrel 05, which press the sleeve 27 of the supply roll 02 for better fixation radially slightly apart.
  • a reel changer with two synchronous motors 03 is shown.
  • the paster 01 has two pairs of receptacles 05; 06; 16 for receiving 05; 06; 16 each have a supply roll 02.
  • the drive is advantageously carried out here by synchronous motors 03rd
  • Both pairs of shots 05; 06; 16 are pivotable with two accommodateachsten supply rollers 02 and residual rollers about a common pivot axis. This pivoting movement is made possible by a servomotor 22.
  • Each pair of shots 05; 06; 16 is driven only on one side by means of a drive motor 03. It is also possible, the two drive motors 03 of the two pairs of receptacles 05; 06; 16 to arrange on the same side of the roll changer 01. The adjustment of the recording 05; 06; 16 in the axial direction of the supply roll 02 via its own servomotor 21st
  • the torque control of the motors is realized by a digital speed controller with limiter.
  • This speed controller with the setpoint 0 prevents in the event of a web break that the roller accelerates uncontrollably by braking the roller in this case to a standstill and holding it electrically.
  • the web tension can be lowered to a predefined value at standstill.
  • the Fig. 13 shows an example of a diagram for drive control.
EP07103429A 2004-01-30 2005-01-25 Rollenwechsler mit Antrieb Not-in-force EP1790597B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE200410004759 DE102004004759B4 (de) 2004-01-30 2004-01-30 Antrieb für einen Rollenwechsler
DE200410030490 DE102004030490A1 (de) 2004-06-24 2004-06-24 Zentralantrieb eines Rollenwechslers und Rollenwechsler
EP05701605A EP1708942B2 (de) 2004-01-30 2005-01-25 Rollenwechsler

Related Parent Applications (1)

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EP05701605A Division EP1708942B2 (de) 2004-01-30 2005-01-25 Rollenwechsler

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EP1790597A1 EP1790597A1 (de) 2007-05-30
EP1790597B1 true EP1790597B1 (de) 2008-03-19

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EP05701605A Not-in-force EP1708942B2 (de) 2004-01-30 2005-01-25 Rollenwechsler
EP07103429A Not-in-force EP1790597B1 (de) 2004-01-30 2005-01-25 Rollenwechsler mit Antrieb

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US (1) US20070170299A1 (tr)
EP (2) EP1708942B2 (tr)
AT (2) ATE357393T1 (tr)
DE (2) DE502005000503D1 (tr)
ES (1) ES2281893T3 (tr)
RU (1) RU2006131051A (tr)
WO (1) WO2005073114A2 (tr)

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Also Published As

Publication number Publication date
ES2281893T3 (es) 2007-10-01
WO2005073114A2 (de) 2005-08-11
EP1708942A2 (de) 2006-10-11
WO2005073114A3 (de) 2005-09-29
EP1708942B1 (de) 2007-03-21
EP1708942B2 (de) 2012-07-04
EP1790597A1 (de) 2007-05-30
ATE357393T1 (de) 2007-04-15
DE502005000503D1 (de) 2007-05-03
RU2006131051A (ru) 2008-03-10
DE502005003377D1 (de) 2008-04-30
US20070170299A1 (en) 2007-07-26
ATE389607T1 (de) 2008-04-15

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