EP0557198A1 - Vorrichtung und Verfahren zum Bestimmen der Kontaktposition zwischen zwei Teilen von denen mindestens eine mobil ist - Google Patents

Vorrichtung und Verfahren zum Bestimmen der Kontaktposition zwischen zwei Teilen von denen mindestens eine mobil ist Download PDF

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Publication number
EP0557198A1
EP0557198A1 EP93400420A EP93400420A EP0557198A1 EP 0557198 A1 EP0557198 A1 EP 0557198A1 EP 93400420 A EP93400420 A EP 93400420A EP 93400420 A EP93400420 A EP 93400420A EP 0557198 A1 EP0557198 A1 EP 0557198A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
contact
cylinders
parts
receiving
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.)
Granted
Application number
EP93400420A
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English (en)
French (fr)
Other versions
EP0557198B1 (de
Inventor
Bernard Six
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.)
Komori Chambon SA
Original Assignee
Komori Chambon SA
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
Application filed by Komori Chambon SA filed Critical Komori Chambon SA
Publication of EP0557198A1 publication Critical patent/EP0557198A1/de
Application granted granted Critical
Publication of EP0557198B1 publication Critical patent/EP0557198B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0072—Devices for measuring the pressure between cylinders or bearer rings
    • 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

Definitions

  • the present invention relates to a method and a device for detecting, in a machine, the position of coming into contact of two parts, at least one of which is movable, as a whole, relative to the other, a first of these parts or driving part which can be set in motion while the second part or receiving part is mounted idly on its support, applicable more particularly but not exclusively to parallel cylinders of a rotary printer.
  • a sheet of material to be printed travels at constant speed between two parallel cylinders, tangent to each other, namely a blanket cylinder and a counterpart cylinder.
  • the counter cylinder is made of a material which may be hard or flexible, while the surface layer which constitutes the blanket proper, is made of flexible material.
  • the two cylinders are applied under pressure against each other so that the layer of flexible material of the blanket cylinder is crushed in its zone of contact with the counterpart cylinder, the importance of this crushing depending on the pressure exerted by the counter cylinder on the blanket cylinder.
  • this reference position or "zero" position has been determined empirically, for each ply thickness, by the machine operator. To do this, the operator rotates the blanket cylinder, then moved away from the counter cylinder, and engages between the two cylinders a piece of the tablecloth to be printed or of a material having the same thickness, then it brings the counter cylinder closer to the cylinder. blanket, until contact is established. The instant of this simple contact, without pressure, is determined at the moment when the piece of ply which is then itself in contact with the peripheral surfaces of the two cylinders, is driven as a result of its pinching between the two cylinders. It then suffices for the operator to locate this "zero" position and to take it as a starting base for the subsequent pressure setting, resulting in the predetermined crushing of the peripheral layer of the blanket cylinder.
  • the present invention aims to remedy this drawback by providing a device for automatically detecting this "zero" position.
  • this method of detecting, in a machine, the contact position of two parts, at least one of which is movable, as a whole, relative to the other, a first of these parts or driving part being able to be set in motion while the second part or receiving part is mounted loosely on its support is characterized in that the driving part is set in motion while leaving the receiving part immobile, a relative movement of the two driving and receiving parts is carried out until they come into contact, the beginning of the movement of the receiving part, initially stationary, which results from its coming into contact with the moving driving part, is noted, and the positions occupied by the two driving and receiving parts are then recorded, at the moment when the previously immobile receiving part begins to be set in motion, as defining the contact position of the two parts.
  • the invention also relates to a device for implementing the above-mentioned detection method, this device being characterized in that it comprises a movement detection device associated with the receiving part mounted idle, this device comprising a sensor for movement emitting a signal at the start of a movement of the receiving part, means for locating the instantaneous position of the moving part and a signal processing circuit to which the means for locating the moving part and the sensor are connected so as to record, in a memory of the circuit, the position reached by the moving part when the receiving part, previously stationary on its support, just begins to be set in motion relative to its support as a result of its coming into contact with the driving part.
  • a movement detection device associated with the receiving part mounted idle this device comprising a sensor for movement emitting a signal at the start of a movement of the receiving part, means for locating the instantaneous position of the moving part and a signal processing circuit to which the means for locating the moving part and the sensor are connected so as to record, in a memory of the circuit, the position reached by the
  • FIG. 1 is a schematic view in vertical and transverse section (with respect to the web) of a detection device according to the invention used in a rotary offset printer of which only the lower part is shown, comprising the blanket cylinders and counterpart superimposed, which are shown separated from each other, that is to say offset without pressure.
  • Figure 2 is a schematic profile view taken from the right in Figure 1.
  • Figure 3 is a view similar to that of Figure 2, the two counterpart and blanket cylinders being shown in single contact position or "zero" position.
  • FIG. 1 A description will be given below, with reference to FIGS. 1 to 3 of the drawing, of an application of the detection method and device according to the invention to a rotary offset printing machine of which only the lower part is shown in FIG. 1.
  • This printing machine comprises two parallel horizontal cylinders arranged one above the other, namely an upper blanket cylinder 1 and a lower counterpart cylinder 2, cylinders between which passes a sheet of printing material 3.
  • the upper blanket cylinder 1 is integral with 'A shaft 4 which extends transversely (relative to the web 3) between two fixed bearings 5 carried by the uprights of the frame 6 of the printer.
  • the blanket cylinder 1 comprises, in the usual manner, a surface layer of flexible material.
  • the lower counterpart cylinder 2 is mounted on the frame 6 of the printer so that it can be moved vertically.
  • the counterpart cylinder 2, made of flexible or hard material, is integral with a support shaft 7 transverse to the ply 3.
  • the two opposite ends of the shaft 7 of the counterpart cylinder 2 are carried by respective bearings 8, 9 which can be moved vertically on the frame 6 of the printer, independently of each other, under the control of respective individual position adjustment mechanisms 11,12.
  • These mechanisms can be of any known type, for example with rotary screw and nut.
  • Each of these mechanisms provides a signal indicating the actual position of the bearing 8, 9 with which it is associated.
  • These position signals are applied respectively, by conductors 13, to a circuit 14 for processing the signals.
  • This circuit 14 includes in particular a memory for storing signals representing the effective positions of the movable bearings 8, 9.
  • a rotation detection device 15 is associated with the lower counterpart cylinder 2.
  • This device 15 which can be of any suitable type, for example photoelectric, inductive, etc., comprises a fixed sensor 16 disposed near the cylinder. 2, for example facing marks or marks 17 provided on a front face of the cylinder 2 or on an extreme part of its lateral surface.
  • the sensor 16 and the pins 17 are arranged, with respect to each other, in such a way that the start of the rotation drive of the lower counterpart cylinder 2 results in the emission of a signal which is then applied, by through a conductor 18, to the signal processing circuit 14.
  • the detection device makes it possible to determine the reference position or "zero" position of the two cylinders 1 and 2, in which they happen to be just in contact, without applying pressure, with the sheet of material to be printed 3 taken between them two.
  • the various constituent elements occupy the positions shown in FIGS. 1 and 2 and the two blanket 1 and counterpart 2 cylinders are separated from each other, the counterpart cylinder 2 being in the low position.
  • the operator controls the rotation of the single upper blanket cylinder 1 then constituting a "driving part", at low speed, as shown in FIG.
  • the operator lowers, by means of the adjustment mechanism 11, the left bearing 8 and the left part of the shaft 7 to their starting position. It then proceeds in the same way in the right part of the machine, causing the right bearing 9 to rise, until the "zero" position is also reached there and the corresponding signal is transmitted from the sensor. 16, to circuit 14, and then lowering this level.
  • the memory circuit 14 contains data corresponding to the "zero" position obtained in the left and right parts of the machine. It then suffices for the operator to simultaneously raise the two left 8 and right 9 bearings until the predetermined "zero" positions are reached in the manner described above. It is then certain that the axes of the two cylinders 1 and 2 are perfectly parallel to each other. A third phase of adjustment can take place in causing the right and left side of the counterpart cylinder 2 to rise simultaneously, after having adjusted the parallelism of the axes using the information already obtained. At this instant the sheet of material to be printed 3 is found to be just in contact with the surfaces of the two cylinders 1 and 2, without being subjected to a pressure. After that the operator commands an additional simultaneous movement, upwards, of the two bearings 8 and 9, and this over the same distance, to obtain a predetermined known value of the crushing of the flexible surface layer of the blanket cylinder 1 corresponding to a good quality print.
  • the lower cylinder 2 (part receiving the movement) which is alone mounted movable vertically relative to the upper cylinder 1 (driving part) mounted fixed on the frame of the machine.
  • the reverse arrangement could also be envisaged, the detection of the "zero" position, then taking place on the vertically movable upper cylinder, moving in the direction of the lower cylinder kept fixed on the frame of the machine.
  • the device for detecting the "zero" position according to the invention could also be used with a machine in which the cylinders are both mounted on the frame of the machine.
  • the device for detecting the contact position of the two cylinders and the method for parallelizing the axes of the two cylinders can be used both in the case where a ply passes between the two cylinders and in the case where such a ply is absent, the two cylinders then being directly tangent to one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
EP19930400420 1992-02-21 1993-02-18 Vorrichtung und Verfahren zum Bestimmen der Kontaktposition zwischen zwei Teilen von denen mindestens eine mobil ist Expired - Lifetime EP0557198B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9202047 1992-02-21
FR9202047A FR2687605B1 (fr) 1992-02-21 1992-02-21 Procede et dispositif de detection, dans une machine, de la position de venue en contact de deux pieces dont l'une au moins est mobile.

Publications (2)

Publication Number Publication Date
EP0557198A1 true EP0557198A1 (de) 1993-08-25
EP0557198B1 EP0557198B1 (de) 1996-06-19

Family

ID=9426909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930400420 Expired - Lifetime EP0557198B1 (de) 1992-02-21 1993-02-18 Vorrichtung und Verfahren zum Bestimmen der Kontaktposition zwischen zwei Teilen von denen mindestens eine mobil ist

Country Status (4)

Country Link
EP (1) EP0557198B1 (de)
JP (1) JPH0671867A (de)
DE (1) DE69303192T2 (de)
FR (1) FR2687605B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0627309A1 (de) * 1993-06-01 1994-12-07 MAN Roland Druckmaschinen AG Vorrichtung zum Einstellen der Berührung zweier im Abstand zueinander verstellbarer Walzen
EP0718101A1 (de) * 1994-12-23 1996-06-26 The Langston Corporation Druckvorrichtung
EP0875377A1 (de) * 1997-04-02 1998-11-04 Valmet Rotomec s.p.a. Vorrichtung zur Erfassung der gegenseitigen Lage und Steuerung der Bewegung einer Vielzahl von sequentiell beweglichen Wrkeinheiten entlang paralleler, gerader Wege
EP1018426A1 (de) * 1999-01-07 2000-07-12 Fischer & Krecke Gmbh & Co. Verfahren zum Anstellen zweier Zylinder einer Druckmaschine gegeneinander
WO2003035398A1 (en) * 2001-10-24 2003-05-01 Nebiolo Printech S.P.A. An offset printing press

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110027306B (zh) * 2019-05-03 2021-08-17 深圳市图加特实业有限公司 一种具有调节离合机构功能的印刷机及工作方法
CN111421947B (zh) * 2020-04-17 2021-12-28 汕头市晟涛印刷有限公司 一种印刷设备用冷却辊升降微调定位机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE491084C (de) *
US4132166A (en) * 1977-10-07 1979-01-02 Aldo Bugnone Mounting for rotary cylinders, particularly in a printing press

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE491084C (de) *
US4132166A (en) * 1977-10-07 1979-01-02 Aldo Bugnone Mounting for rotary cylinders, particularly in a printing press

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0627309A1 (de) * 1993-06-01 1994-12-07 MAN Roland Druckmaschinen AG Vorrichtung zum Einstellen der Berührung zweier im Abstand zueinander verstellbarer Walzen
US5517919A (en) * 1993-06-01 1996-05-21 Man Roland Druckmaschinen Ag Method for adjusting contact between two rollers which are adjustable with respect to their distance relative to one another
US5622114A (en) * 1993-06-01 1997-04-22 Man Roland Druckmaschinen Ag Method for adjusting contact between two rollers which are adjustable with respect to their distance relative to one another
EP0718101A1 (de) * 1994-12-23 1996-06-26 The Langston Corporation Druckvorrichtung
US5657694A (en) * 1994-12-23 1997-08-19 Weishew; Joseph John Method of and apparatus for loading a wiper roll against an anilox roll
EP0875377A1 (de) * 1997-04-02 1998-11-04 Valmet Rotomec s.p.a. Vorrichtung zur Erfassung der gegenseitigen Lage und Steuerung der Bewegung einer Vielzahl von sequentiell beweglichen Wrkeinheiten entlang paralleler, gerader Wege
EP1018426A1 (de) * 1999-01-07 2000-07-12 Fischer & Krecke Gmbh & Co. Verfahren zum Anstellen zweier Zylinder einer Druckmaschine gegeneinander
WO2003035398A1 (en) * 2001-10-24 2003-05-01 Nebiolo Printech S.P.A. An offset printing press

Also Published As

Publication number Publication date
FR2687605B1 (fr) 1994-04-29
DE69303192T2 (de) 1997-02-20
DE69303192D1 (de) 1996-07-25
FR2687605A1 (fr) 1993-08-27
JPH0671867A (ja) 1994-03-15
EP0557198B1 (de) 1996-06-19

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