Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F13/00—Common details of rotary presses or machines
  • B41F13/08—Cylinders
  • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
  • B41F13/34—Cylinder lifting or adjusting devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
  • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
  • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets

Definitions

• the invention relates to a stop device for changing a rotationally symmetrical component in a printing press according to the preamble of the main claim.
• rotationally symmetrical components such as rollers and / or cylinders
• slings such as ropes or crane hooks
• a corresponding device is known from EP 0 639 452 B1 for removing a cylinder, in particular a forme cylinder, from a bearing of a printing press.
• This removal device has two gripping arms with which the forme cylinder can be pivoted out of its storage.
• the removal device is arranged next to or below the respective printing unit of the printing press.
• the form cylinder is lifted which is conveyed upwards at the printing unit and transferred there to a holding device.
• the lifting device then pivots into a new position, so that a new cylinder is transferred to the lifting device, which cylinder is fed from the lifting device to the removal device and can be reinserted in its bearings in the printing unit.
• DE 198 19 389 A1 discloses a device for replacing an anilox roller in a coating unit of a rotary printing press.
• a magazine for anilox rollers is arranged in the coating unit and a lifting device for exchanging anilox rollers is assigned to this magazine.
• the lifting device has two belts which are attached to the magazine at one end and can be wound onto a drivable winding shaft at the other end.
• the invention is based on the object of providing a stop device of the type mentioned at the outset which avoids the disadvantages mentioned, which in particular allows a rotationally symmetrical component to be securely struck and allows set-up times to be shortened within a printing press.
• the object is achieved by the training features of the main claim. Further training results from the subclaims.
• a first advantage of the stop device according to the invention is based on the fact that it has a simple construction and can be used manually or in connection with a handling device, for example an industrial robot Changing rotationally symmetrical components, in particular cylinders and / or rollers, can be used in a printing press.
• Another advantage is that a positive connection can be generated between this stop device and a rotationally symmetrical component that is to be replaced, which can be released if necessary. This creates a safe sling that noticeably reduces the risk of accidents and injuries when changing components.
• the positional locking of the component can be achieved by the interlocking device and rotationally symmetrical component which can be achieved and the set-up times when these components are changed can be shortened.
• the rotationally symmetrical component can be transported out of the printing press bearings or into the printing press from outside and used in bearings in a short time.
• an exchange of rotationally symmetrical components, preferably with one another, in bearings from printing unit to printing unit or coating unit and vice versa can also be realized at short notice.
• the use of the preferably automatically operated stop device in connection with a handling device is particularly advantageous.
• the replacement of a rotationally symmetrical component in connection with a handling device can be realized by arranging two synchronously movable stop devices on the handling device in order to securely hold the rotationally symmetrical component at the end by means of a positive fit.
• the rotationally symmetrical component has corresponding openings, preferably bores, at both ends, in the region of the cylinder barrel or the cylinder shoulder or the cylinder journal, in order to achieve a releasably positive connection with the stop device.
• Fig.l a stop device with manual
• FIG. 2 shows a stop device according to FIG. 1
• FIG. 3 shows a stop device with automated actuation.
• the component essentially consists of a ball support sleeve 1, which carries at least one, preferably several, balls 2 on the circumference in a captive manner.
• the balls 2 are preferably arranged in one plane on the circumference and protrude beyond the circumference of the ball support sleeve 1 or are retractable within the circumference.
• the stop device also has an actuating device 4 arranged on the ball support sleeve 1 and is nes within the ball support sleeve 1 movable bolt 10 with each ball 2 in functional connection.
• the rotationally symmetrical component preferably a cylinder or a roller, has on each end face an opening, for example a bore, running to the axis of rotation of the component in a vertical direction in order to receive the stop device in a form-fitting manner.
• the ball support sleeve 1 is connected to a swivel joint 3 which penetrates transversely above this ball support sleeve 1 and which has a holder 5 on both sides and a handle 6 which is arranged transversely thereto and parallel to the swivel joint 3 and connects the holders 5 ( Figure 1).
• An actuating device 4 is furthermore arranged on the ball support sleeve 1, which can be activated manually and is functionally connected to the balls 2 via a bolt 10 which can be moved linearly within the ball support sleeve 1.
• FIG. 3. 1 and 2 show that each holder 5 has a curved push-off curve 7 arranged in the lower region. This push-off curve 7 can be placed on the upper side of a bearing as part of the stop device when changing the rotationally symmetrical component and supports the manual changing process of a rotationally symmetrical component, preferably a printing press cylinder or a printing press roller.
• the ball support sleeve 1 is shown in FIG. 3 in a further development for training in accordance with FIG. 1, the actuating device 4 being able to be activated automatically, for example electrically, pneumatically or hydraulically. The activation is preferably carried out by means of a central one Control of the printing press.
• the ball support sleeve 1 has a feed line 8 for activating the actuating device 4, which can be acted upon pneumatically in the present example.
• a bolt 10 is arranged to be linearly movable.
• the bolt 10 is functionally connected to the preferably pneumatically activatable actuating device 4.
• the pin 10 has a free rotation 11, preferably a conically tapered one, near the balls 2.
• a force system 9, which acts on the actuating device 4, is preferably arranged in the middle to upper region.
• the force system 9 is preferably a compression spring which is arranged concentrically with the bolt 10 and which is supported in the interior of the ball support sleeve 1.
• the bolt 10 is functionally connected to the actuating device 4.
• an upper part 12 is arranged in a stationary manner on the ball support sleeve 1.
• Actuating device 4 and upper part 12 preferably have seals 13 and 12 which seal the interior of the ball support sleeve 1.
• the feed line 8 opens into the area of the interior of the ball support sleeve 1 formed by the actuating device 4 and the upper part 12, so that the energy supplied, for example compressed air, acts on the actuating device 4.
• the upper part 12 is assigned a sensor 15, which is connected in terms of circuitry to a central control of the printing press and detects at least the position of the actuating device 4 (with pin 10) in an end position.
• the end position in which the bolt 10 fixes the balls 2 in the position protruding over the circumference of the ball raghulse 1 can preferably be detected.
• the functioning of the stop device and especially the ball support sleeve 1 is as follows:
• the initial state is that the balls 2 protrude beyond the circumference of the ball support sleeve 1.
• the force system 10 designed as a compression spring acts on the actuating device 4 and the bolt 10, which presses the balls 2 out captively over the circumference of the ball support sleeve 1.
• the balls 2 are thus on the cylindrical bolt 10.
• the actuating device 4 is activated manually or automatically (pneumatically, hydraulically or electrically).
• the bolt 10 is displaced linearly within the ball support sleeve 1, so that the free rotation 11 can be positioned at the height of the balls 2.
• the force effect of the force system 9 is canceled by the actuating device 4.
• the balls 2 can now be withdrawn from the circumference. If the ball support sleeve 1 is inserted into an opening of a rotationally symmetrical component, the balls 2 can likewise be moved back into the space of the free rotation 11 through the wall of the opening.
• the actuating device 4 When the end position is reached, the actuating device 4 is put out of operation, the force system 9 relaxes and the bolt 10 moves back into the starting position already described.
• the bolt 10 moves, the balls 2 are lifted onto the cylindrical bolt 10 by means of the tapered free rotation 11 and pressed outwards.
• the balls 2 are self-locking between the bolts 10 and the openings arranged in the ball support sleeve 1.
• two stop devices are arranged on the latter, the actuating devices of which can be activated synchronously.
• the stop devices are arranged in such a way that the end of the component to be replaced can be securely detachably connected to the stop device with its openings.
• the ball support sleeve 1 engages positively in the openings of the rotationally symmetrical component in each stop device and transports the component into free storage within a printing unit or coating unit and deposits it there.
• a rotationally symmetrical component can also be releasably connected at the end manually with one stop device each via a ball support sleeve 1 and can be used by one or more operators, e.g. can be transported to a shelf and stored there. To this end, the operator grips the handle 6 and activates the actuating device 4. After the positive connection between the ball support sleeve 1 and the corresponding opening in the rotationally symmetrical component, the component can be removed from the storage.
• the handle 6 can in this case be folded over in the swivel joint 3, so that the rotationally symmetrical component can be removed more easily from the storage by using the push-off curve 7.
• a further rotationally symmetrical component can be positively received by means of a stop device.
• a stop device To improve the insertion of the ball support sleeve 1 into an associated opening of a rotationally symmetrical component, the latter has a conical or curved insertion aid 16 at the end.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Rotary Presses (AREA)
• Inking, Control Or Cleaning Of Printing Machines (AREA)
• Labeling Devices (AREA)
• Load-Engaging Elements For Cranes (AREA)
• Sheets, Magazines, And Separation Thereof (AREA)
• Thermistors And Varistors (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7934117

Family Applications (1)

Country Status (8)

Families Citing this family (3)

Citations (4)

Family Cites Families (7)

• 1999
  • 1999-12-22 DE DE19962443A patent/DE19962443C1/de not_active Expired - Fee Related
• 2000
  • 2000-12-13 WO PCT/EP2000/012635 patent/WO2001045948A1/de not_active Ceased
  • 2000-12-13 AT AT00983304T patent/ATE245532T1/de not_active IP Right Cessation
  • 2000-12-13 CZ CZ20022078A patent/CZ299625B6/cs not_active IP Right Cessation
  • 2000-12-13 DE DE50003041T patent/DE50003041D1/de not_active Expired - Lifetime
  • 2000-12-13 JP JP2001546474A patent/JP4601886B2/ja not_active Expired - Fee Related
  • 2000-12-13 AU AU20090/01A patent/AU2009001A/en not_active Abandoned
  • 2000-12-13 EP EP00983304A patent/EP1242243B1/de not_active Expired - Lifetime
  • 2000-12-13 CN CNB008176272A patent/CN1165421C/zh not_active Expired - Fee Related

Patent Citations (4)

Also Published As

Similar Documents

Legal Events