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US4573410A Expired / Lapsed US ⏱️ 0.0 years remaining

Printing press with register motors

Assignee: Heidelberger Druckmaschinen AG
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Filing: 1984-11-27
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Granted: 1986-03-04
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Expires: 2004-11-27
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Abstract

Abstract A printing press, in particular an offset printing press comprising a plurality of individually operable setting motors, in particular for adjusting the inkfilm density profile, each setting motor being connected to a pick-up generating electric signals characteristic of the actual position of the setting motor at any given moment (actual values) comprises an electronic comparator arrangement (35, 44) which is supplied with the actual values and, in addition, desired values for the position of the individual setting motors (9) and which repeatedly scans the actual values sequentially in a cyclical time sequence and compares each actual value with the related desired value to form a setting signal for operation of the associated setting motor in the forward or reverse direction when a given positive or negative minimum deviation is exceeded. The setting signals are fed to a switching arrangement (52) designed to cause the respective setting motor to be stopped or driven at a pre-determined speed in the sense of rotation determined by the last setting signal until the next signal is received. Thus it is rendered possible to easily control a plurality of setting motors.

Inventors

  • 👤 Udo Blasius
  • 👤 Karl-Heinz May
  • 👤 Anton Rodi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 23:41
CPC Classifications
B; B41; B41F; B41F33/00; B41F33/16; B41F31/00; B41F31/02; B41F31/04; B41F31/045; Y; Y10; Y10S; Y10S101/00; Y10S101/47

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 200 words
A printing press comprising a plurality of individually and simultaneously operable setting motors, each setting motor being connected to a pick-up generating electric signals characteristic of an actual position of the respective setting motor at any given moment and representing a given actual value, comprising an electronic comparator device having means for receiving respective actual values supplied thereto and means for receiving desired values for the position of the respective setting motors, said electronic comparator device having means for repeatedly scanning the actual values in a cyclical time sequence for comparing the actual values with the respective desired values to form setting signals for simultaneously operating the respective setting motors in the forward and reverse direction when a given positive and negative minimum deviation, respectively, is exceeded, as well as setting signals for stopping said setting motors, and a switching arrangement having means for receiving said setting signals, respectively, and , in response thereto, for driving the respective setting motors simultaneously, at a predetermined speed, in said forward and reverse direction, respectively, determined by a last preceding setting signal until a next succeeding setting signal relating to the respective motors is received, and for stopping the respective setting motors, respectively.
Claim 2
Dependent Claim 200 words
A printing press comprising a plurality of individually and simultaneously operable setting motors, each setting motor being connected to a pick-up generating electric signals characteristic of an actual position of the respective setting motor at any given moment and representing a given actual value, comprising an electronic comparator device having means for receiving respective actual values supplied thereto and means for receiving desired values for the position of the respective setting motors, said electronic comparator device having means for repeatedly scanning the actual values in a cyclical time sequence for comparing the actual values with the respective desired values to form setting signals for simultaneously operating the respective setting motors in the forward and reverse direction when a given positive and negative minimum deviation, respectively, is exceeded, as well as setting signals for stopping said setting motors, and a switching arrangement having means for receiving said setting signals, respectively, and , in response thereto, for driving the respective setting motors simultaneously, at a predetermined speed, in said forward and reverse direction, respectively, determined by a last preceding setting signal until a next succeeding setting signal relating to the respective motors is received, and for stopping the respective setting motors, respectively.
Claim 3
Dependent Claim 29 words
A press in accordance with claim 1 wherein, in the switching arrangement, each of said setting motors is operatively associated with an electronic storage for storing the setting signal.
Claim 4
Dependent Claim 59 words
A press in accordance with claim 1 wherein said comparator device has means for generating, together with each setting signal, an address signal relating to a respective setting motor just being scanned, and means for feeding the address signal to an address decoding circuit for transmitting the setting signal to the addressed storage associated with the respective setting motor.
Claim 5
Dependent Claim 59 words
A press in accordance with claim 3 including means for switching said address decoding circuit over in response to an operating mode signal representing two possible operating modes so that, in one of said operating modes, one address is associated with one storage only, while in the other of said operating modes, one address is associated with two storages.
Claim 6
Dependent Claim 24 words
A press in accordance with claim 1 wherein said comparator device comprises an analog comparator for comparing the desired values with the actual values.
Claim 7
Dependent Claim 24 words
A press in accordance with claim 1 wherein said comparator device comprises a digital comparator for comparing the desired values with the actual values.
Claim 8
Dependent Claim 77 words
A press in accordance with claim 4, wherein said one operating mode is a semi-bridge circuit and said other operating mode is a full-bridge circuit, and including a logic braking circuit actuatable, upon receipt of a "stop" setting signal, to emit a control signal for a connected power stage with switches arranged in the full-bridge circuit connection for switching on two switches connected to the same pole of a supply voltage source of the respective setting motor.
Claim 9
Dependent Claim 24 words
A press in accordance with claim 7, wherein said logic braking circuit is switchable on by the operating mode signal indicating full-bridge circuit connection.
Claim 10
Dependent Claim 48 words
A press in accordance with claim 2 including a control device arranged behind the storage which ensures that the electric energy required for driving the setting motors is supplied successively to only a certain part of the total number of setting motors during a pre-determined period of time.
Claim 11
Dependent Claim 107 words
A press in accordance with claim 1 wherein said comparator device has means for detecting when any of several different minimum deviations corresponding to different tolerance ranges is exceeded by the actual values, and including switching means for initially actuating given ones of said setting motors to run at a first, pre-determined speed, said given setting motors being stopped when a first tolerance range is entered, and said switching means being then actuable for causing said given setting motors to run at a speed lower than the said first speed and for switching said comparator device over to a tolerance range smaller than said first tolerance range.
Claim 12
Dependent Claim 45 words
A press in accordance with claim 1, wherein said switching arrangement comprises at least one integrated circuit which has at least one power stage for connection of a motor and a control logic for controlling the power stage provided on one and the same chip.
Claim 13
Dependent Claim 63 words
A press in accordance with claim 11, wherein said integrated circuit comprises: power stages controllable in response to the setting signals for connection of at least two setting motors, at least one address input for addressing the power stages, at least one data input for the setting signals and at least one storage device for each power stage for storing the setting signals.
Claim 14
Dependent Claim 23 words
A press in accordance with claim 10, wherein said integrated circuit comprises power stages for connection of a total of four setting motors.
Claim 15
Dependent Claim 235 words
An integrated circuit for a switching arrangement of a printing press including a plurality of individually and simultaneously operable setting motors, each setting motor being connected to a pick-up generating electric signals characteristic of an actual position of the respective setting motor at any given moment and representing a given actual value, an electronic comparator device having means for receiving respective actual values supplied thereto and means for receiving desired values for the position of the respective setting motors, said electronic comparator device having means for repeatedly scanning the actual values in a cyclical time sequence for comparing each of the actual values with the respective desired values to form setting signals for operation of the respective setting motors in the forward and reverse direction when a given positive and negative minimum deviation, respectively, is exceeded, as well as setting signals for stopping said setting motors, and a switching arrangement having means for receiving said setting signals respectively, and, in response thereto, for driving the respective setting motors, at a pre-determined speed, in said forward and reverse direction, respectively, determined by a last preceding setting signal unitl a next succeeding setting signal relating to the respective motors is received, and for stopping the respective setting motors, respectively, said switching arrangement having at least one power stage for connection of a motor and a control logic for controlling the power stage provided on the same chip.
Claim 16
Dependent Claim 235 words
An integrated circuit for a switching arrangement of a printing press including a plurality of individually and simultaneously operable setting motors, each setting motor being connected to a pick-up generating electric signals characteristic of an actual position of the respective setting motor at any given moment and representing a given actual value, an electronic comparator device having means for receiving respective actual values supplied thereto and means for receiving desired values for the position of the respective setting motors, said electronic comparator device having means for repeatedly scanning the actual values in a cyclical time sequence for comparing each of the actual values with the respective desired values to form setting signals for operation of the respective setting motors in the forward and reverse direction when a given positive and negative minimum deviation, respectively, is exceeded, as well as setting signals for stopping said setting motors, and a switching arrangement having means for receiving said setting signals respectively, and, in response thereto, for driving the respective setting motors, at a pre-determined speed, in said forward and reverse direction, respectively, determined by a last preceding setting signal unitl a next succeeding setting signal relating to the respective motors is received, and for stopping the respective setting motors, respectively, said switching arrangement having at least one power stage for connection of a motor and a control logic for controlling the power stage provided on the same chip.
Claim 17
Dependent Claim 63 words
An integrated circuit in accordance with claim 14, comprising a plurality of power stages controllable in response to the setting signals, for connection of at least two setting motors, at least one address input for addressing the power stages, at least one data input for the setting signals, and at least one storage device for each power stage for storing the setting signals.
Claim 18
Dependent Claim 24 words
An integrated circuit in accordance with claim 12, wherein said integrated circuit comprises power stages for connection of a total of four setting motors.

References Cited (Backward Citations)

US3835777A Cited
US3930447A Cited
US4193345A Cited
US4200932A Cited
US4200932B1 Cited
GB2024457A Cited
GB2073663A Cited
GB2080201A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-03-03 1989-09-02 1990-03-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-03-03 1993-09-02 1994-03-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-03-03 1997-09-02 1998-03-04 $7700.00 Window Closed / Lapsed

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