EP0317418A2 - Optoelektronisches System für die Kontrolle und die Steuerung der Förderung der Hologrammfilme - Google Patents

Optoelektronisches System für die Kontrolle und die Steuerung der Förderung der Hologrammfilme Download PDF

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Publication number
EP0317418A2
EP0317418A2 EP88402858A EP88402858A EP0317418A2 EP 0317418 A2 EP0317418 A2 EP 0317418A2 EP 88402858 A EP88402858 A EP 88402858A EP 88402858 A EP88402858 A EP 88402858A EP 0317418 A2 EP0317418 A2 EP 0317418A2
Authority
EP
European Patent Office
Prior art keywords
motor
ribbon
cylinder
optical
tape
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.)
Withdrawn
Application number
EP88402858A
Other languages
English (en)
French (fr)
Other versions
EP0317418A3 (de
Inventor
Jean Brunet
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0317418A2 publication Critical patent/EP0317418A2/de
Publication of EP0317418A3 publication Critical patent/EP0317418A3/de
Withdrawn legal-status Critical Current

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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
    • B65H23/046—Sensing longitudinal register of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • B41F19/064—Presses of the reciprocating type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2219/00—Printing presses using a heated printing foil
    • B41P2219/20—Arrangements for moving, supporting or positioning the printing foil
    • B41P2219/23—Winding up the printing foil

Definitions

  • the present invention relates to a new compact optoelectronic device intended for programming and controlling the movement of a ribbon carrying holograms which it is desired to fix on a support by means of a hot or cold press as required.
  • Printing presses comprising a marble animated by a back-and-forth movement on which a heating plate carrying the matrix is placed.
  • the reserve of plastic sheets, cardboard, leather, wood, to be gilded is placed above a driving cylinder which snatches these sheets and projects them on the matrix covered by the ribbon in order to apply the pressure necessary to fix the gilding or the hologram.
  • the back-and-forth movement of the marble moves the sheets outwards where they are stored.
  • the ribbon to be gilded or printed moves between the die and the printing rollers. This tape is stored on two reserve and take-up rolls, and advances at the speed of the take-up roll. This is generally controlled by complex and cumbersome electronics.
  • a new device which comprises a hollow winding cylinder containing the permanent magnet motor controlled by a train of electric pulses which control the advancement of the motor and limit jolts.
  • This new device has mechanical transmission means which are placed in a sealed casing fixed at the end of the hollow winding cylinder.
  • Various elements such as ribbon tension sensor, non-return brush, are still necessary to check the good conditions for the advancement of the ribbon.
  • the present invention makes it possible to solve these problems and these difficulties.
  • the invention called an optoelectronic assembly intended for monitoring and controlling the running of hologram films or gilding, is characterized in that it comprises a DC voltage source, a DC motor and permanent magnet, a positioning of fiber optic tape, a positioning adjuster, a winding cylinder, a reel cylinder, an electromechanical control associated with a logic circuit.
  • the invention thus summarized has numerous advantages and in particular: - an adaptation to the detection of ribbons carrying color or holographic images, - direct reading of the image to be printed, - flexible and precise programming, - easy adaptation on all hot and cold printing presses, - low manufacturing cost.
  • Figure 1 the device associated with a printing press system.
  • This consists of a marble (9) placed on a bearing (8) driven back and forth by means of an ordinary motor (36).
  • a heating plate (7) On this marble (9) a heating plate (7) has been placed which is used for gilding or hot printing.
  • the heating plate carries the printing matrix (1) and the assembly, marble (9), heating plate (7) and matrix (1), undergo the back-and-forth movement. by the motor (36) and the connecting rod (10).
  • the ribbon reserve is at the end (6) of the marble and the rewinding cylinder of the used ribbon is placed at the head of the marble at level (1).
  • the ribbon is guided by the cylinder (3).
  • the cylinder (11) extracts the ribbon from the cylinder (6).
  • the sheets to be impressed (cardboard, leather, wood, etc.) located in a reserve (33) are caught by the rotary cylinder (4) and guided by an arcuate blade (35). These sheets are applied to the matrix (1) covered with the ribbon (2) where they receive the hot printing of the hologram or the gilding. These sheets are, after printing, projected in the reserve (34).
  • a fiber optic probe (16) On the moving tape, a fiber optic probe (16) has been placed which detects the position of the tape. The detection is subject to electrical pulses which are processed by the electronics (5). This processing is used to program the advancement of the cylinder (11).
  • the winding cylinder with its mechanical drive is formed by a hollow tube split over its entire length, which makes it possible to obtain a flexible tube in the center and rigid at the ends. Furthermore, when the printing operation is finished, the ribbon consumed can be recovered by folding the disassembled plastic cylinder (15) so that its diameter decreases.
  • the plastic cylinder (15) is carried by two flanges (12) made of light alloy, housed in the chamfers (24). The lower edges (27) of the chamfers are of sufficient size to provide the cylinders (15) with sufficient guidance.
  • the cylinder (15) and its flanges (12) are kept horizontal on the support by means of a clamping screw (13) fixed on bearings (23).
  • the drive motor (17) with "permanent magnet” which operates from 2 to 210 volts.
  • the motor (17) carried by the main casing (14) causes the cylinder (15) to rotate by means of the pinions (25) and the transmission belt (26).
  • An assembly beam (18) joins the casing (14) to the support arm (20).
  • the assembly beam (18) carries the other end of the cylinder (15) at the level of the bearing (23).
  • the optical fiber (16) is composed of channels of glass fibers which palpate the ribbon (2) by resting on the latter.
  • the head of the optical fiber is bent at an angle of approximately 50 ° relative to the horizontal, and the feeler surface has undergone optical polishing.
  • the entire probe supports temperature rises of several hundred degrees.
  • the channels are composed of light-emitting glass fibers (28) and light-receiving fibers (22). When a continuous light is emitted through arrays of fibers (28), this light is reflected on the crystal lattice of the holographic image, then is picked up by the receiving channels (22) of this fiber.
  • the reflected light is led through the fiberglass receiving channel (22) then taken up by an electro-optical converter which transforms the light pulse into an electric pulse.
  • FIG. 4 shows the support for the glass fibers (16).
  • This support consists of a plate (29) glued or screwed to the base of the press. From this plate, a rigid rod (30) carries a flexible metal tongue (32). The rigid rod (30) and flexible tongue assembly forms an adjustable "T".
  • the adjustment of the "T” makes it possible to position the optical fiber (16) equipped with its cable (31) on the edge of the holographic image.
  • the inclination of the optical fiber being defined as a function of the curved end of it.
  • the mounting and bonding conditions of the "T” allow the assembly to withstand several hundred degrees without alteration.
  • FIG. 5 shows the logic diagram of the operation of the command and control of the scrolling of the gilding or hologram ribbon.
  • the optical fiber (16) generates, as the ribbon travels, light pulses which are transformed into electrical pulses. These electrical pulses are shaped by gate E and directly supply the pulse recording counters A and B. These counters are also regulated by a voltage source I which generates 12v electric pulses and ensures permanent sequential operation of A or B. Between the pulse generator I and A or B, a control counter C was connected in series which activates the operating authorization for A and B. Between the control counter C and the electronic processing counters A and B, the switch F is connected which switches the control either to A or to B. On the pulse recorders A and B there are outputs AA, AB corresponding to the command to stop the permanent magnet motor.
  • a comparator D1 for A and D2 for B was connected for each box.
  • the function of D1 and D2 consists in comparing the information of the coded wheel programmed by the operator, and that coming from the pulse recording counters A and B which receive the information coming from the optical detector (16).
  • the comparators D1 and / or D2 emit a signal RA and RB which will slow down the motor M according to the process described on Figure 6.
  • FIG. 6 represents the simplified electronic diagram of the control circuit of the motor M;
  • the slowdown control signals (RA, RB) coming from the comparators D1 and D2 are switched to gate P1.
  • This is connected to a pulse oscillator with variable duty cycle OSC1 which is adjusted by means of the potentiometer P.
  • this oscillator OSC1 emits pulses whose cycle varies, creating a train of pulses perceived by the gate P3. This is placed on the motor control circuit M.
  • the pulse train from OSC1 opens and closes the transistot T1 at variable frequency: this circuit creates at the level of the motor circuit M including the transistors T1 and T2 exited by l 'OSC2 oscillator, short-circuit pulses between points YMZ; By short-circuiting on T1 at variable frequency, the power supply to the motor, the latter slowed down according to the frequency of these short-circuits helped by its force against electromotive. Under these conditions, the YMZ circuit drives when T1 does not drive and if T2 drives, the motor operates at 80 v. When the YT1Z circuit conducts, it shunts the power supply to the motor at a frequency given by the oscillator OSC1. Oscillating operation causes the motor to slow down.
  • the engine stop control signals, AA and AB from the electronic counters A and B, are joined to the door P2.
  • the latter is directly connected to door P3 located on the motor control circuit M.
  • the transistor T1 continuously drives the motor M, which slows down and stops, aided by its force against electromotive. In this case, T2 does not drive.
  • the transistor T2 controls by the oscillator OSC2 the speed of the motor M and T1 does not drive.
  • FIG. 7 shows the practical result obtained by means of the device which is the subject of the invention. Knowing for example that the holographic images or any other decorative element that we want to impress hot, are spaced 150mm apart on the ribbon, it scrolls at normal speed, driven by the motor M for 102mm from point G to at point V. Then the electro-optical detector detects the image at point V, and initiates the process of slowing down of the engine, by means of the electronics described above during 15mm. At point E, the engine takes the low speed and stops at point F. this is done after a stroke of 35mm. The display of coded wheels makes it possible to vary the duration of braking of the engine compared to the duration of operation at normal speed with modular precision.

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EP88402858A 1987-11-19 1988-11-15 Optoelektronisches System für die Kontrolle und die Steuerung der Förderung der Hologrammfilme Withdrawn EP0317418A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8715991A FR2623637B3 (fr) 1987-11-19 1987-11-19 Ensemble optoelectronique destine au controle et a la commande de defilement de films d'hologrammes
FR8715991 1987-11-19

Publications (2)

Publication Number Publication Date
EP0317418A2 true EP0317418A2 (de) 1989-05-24
EP0317418A3 EP0317418A3 (de) 1989-08-16

Family

ID=9356938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88402858A Withdrawn EP0317418A3 (de) 1987-11-19 1988-11-15 Optoelektronisches System für die Kontrolle und die Steuerung der Förderung der Hologrammfilme

Country Status (2)

Country Link
EP (1) EP0317418A3 (de)
FR (1) FR2623637B3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408958A3 (en) * 1989-07-15 1991-06-26 Bobst S.A. Method and device for measuring the web deviation in a polychromatic rotary printing machine
EP1531045A1 (de) * 2003-11-13 2005-05-18 Bobst S.A. Verfahren zum Aufstellen und Übertragen von mindentens zwei verschiedenen Muster von einer Übertragungsfolie
CN107364210A (zh) * 2017-07-18 2017-11-21 桐乡市龙翔纺织有限责任公司 一种三层复合起皱高档装饰面料生产工艺

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4294644A (en) * 1980-01-30 1981-10-13 Datafile Limited Servo motor control labeller
EP0183440B1 (de) * 1984-11-15 1991-08-21 Ajinomoto Co., Inc. Transferdruck

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0408958A3 (en) * 1989-07-15 1991-06-26 Bobst S.A. Method and device for measuring the web deviation in a polychromatic rotary printing machine
US5126578A (en) * 1989-07-15 1992-06-30 Bobst Sa Process and device for measuring displacement rates of a web running through a multi-color rotary printing press
EP1531045A1 (de) * 2003-11-13 2005-05-18 Bobst S.A. Verfahren zum Aufstellen und Übertragen von mindentens zwei verschiedenen Muster von einer Übertragungsfolie
CN107364210A (zh) * 2017-07-18 2017-11-21 桐乡市龙翔纺织有限责任公司 一种三层复合起皱高档装饰面料生产工艺

Also Published As

Publication number Publication date
FR2623637A1 (fr) 1989-05-26
EP0317418A3 (de) 1989-08-16
FR2623637B3 (fr) 1990-03-09

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