EP0089642B1 - Machine pour imprimer des étiquettes ou analogues pour les distribuer ou pour les séparer du support siliconisé - Google Patents

Machine pour imprimer des étiquettes ou analogues pour les distribuer ou pour les séparer du support siliconisé Download PDF

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Publication number
EP0089642B1
EP0089642B1 EP19830102706 EP83102706A EP0089642B1 EP 0089642 B1 EP0089642 B1 EP 0089642B1 EP 19830102706 EP19830102706 EP 19830102706 EP 83102706 A EP83102706 A EP 83102706A EP 0089642 B1 EP0089642 B1 EP 0089642B1
Authority
EP
European Patent Office
Prior art keywords
web
roller
labels
printing
drive roller
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.)
Expired
Application number
EP19830102706
Other languages
German (de)
English (en)
Other versions
EP0089642A1 (fr
Inventor
Emilio Negri
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.)
Italora SpA
Original Assignee
Italora SpA
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 Italora SpA filed Critical Italora SpA
Publication of EP0089642A1 publication Critical patent/EP0089642A1/fr
Application granted granted Critical
Publication of EP0089642B1 publication Critical patent/EP0089642B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip

Definitions

  • This invention relates to machines for printing and handling self-adhesive labels, tags, cards or the like for use in identifying articles. For example, these machines are used in preparing tags for cloths articles, or in packaging prepared foods in supermarkets.
  • the known point and cliche type printing machines are capable of printing self-adhesive labels, tags, cards or the like providing the same either in the form of a roll or previously cut one by one.
  • Such machines (see U.S. Patent N. 4,218,030 to Avery) succeed in providing with printing also the separation of the label only by presetting a complicated labyrinth about the drive roller upstream of the printing device.
  • the above object has been achieved by providing a printing machine, in which the assembly comprising the drive roller for moving the web and the pressure roller adhering to said drive roller is made movable, so that it can be placed at a first position immediately upstream of the printing head and at a second position downstream of the doctor blade, so that the web encircles in the second position the drive roller around a substantial proportion of its periphery.
  • the printing needle head may be preceded by a buffer or cliché printing device, which presets the fixed text for each label of the like.
  • the second position for the above mentioned roller assembly is such that the web traction produced by the final take up roller will provide a component pressing the pressure roller against the drive roller, thus increasing the web adhesion thereon.
  • An improvement to the present invention further provides that the take up roller, instead of being conventionally driven by an asynchronous motor through a clutch, is driven by a D.C. motor developing two torques, that is a minor torque when the printing device is writing and the web is stand-still, and a major torque when the stepper motor operating the drive roller moves the web to the next line or to the next label.
  • reference numeral 10 designates a roller having a web 11 of labels, tags, cards or the like wound up thereon.
  • This web 11 is stretched by a known type of tensioning device comprising an arm 18 oscillating about a pin 12 and carrying a roller 13 which, when required, can recover some length of web 11 holding it taut upstream of the drive roller 20.
  • this web 11 travels some free distance, during which provision can be made for performing one or more printing operations of a fixed term by means of a cliché or buffer, schematically shown at 19.
  • the whole assembly comprising said rollers 20 and 21 is movable between two positions; that is to say, a position indicated by full line in Fig. 1 immediately upstream of the printing head 14, and another position downstream of the doctor blade 15. This last position has been shown by dash-dot line. Said second position is selected so that the traction force F produced by the motor of the take up roller 17 will produce a component P tending to move said pressure roller 21 near the drive roller 20, thus increasing the adhesion of the web on said roller.
  • a needle printing head 14 is disposed for printing a text which may time by time vary. Downstream of said head 14 a doctor blade 15 is provided for label separation, then a cutting device 16.
  • the web 11 will follow the following path: from said roller 10 the web is caused to pass about roller 13, then between said two rollers 20 and 21, in their full line position, whereupon each label or the like is printed by said head 14, then cut by the cutting device 16.
  • the take up roller 17 may be driven by an asynchronous motor through a clutch limiting the take up torque and preventing the web movement during the writing period of each line.
  • the take up roller could also be operated by a D.C. motor supplied with two current values, so as to provide two different torques, the minor of which will be effective as the printing device is writing, that is when the stepper motor is at stand-still this torque will only serve to maintain the web at stretched out condition.
  • the other higher torque will be effective when said stepper motor rotates and will serve to increase the force required for separation of the label or the like.

Landscapes

  • Labeling Devices (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (4)

1. Machine à imprimer comprenant un rouleau moteur (20) qui actionne en ruban (11) et un rouleau depression (21) qui comprime le ruban (11) contre le rouleau moteur (20) caractérisée par le fait que le groupe formé par le rouleau moteur (20) et par le rouleau de pression (21) est mobile de façon à pouvoir être placé dans une première position immédiatement en amont de la tête imprimante (14) de la machine et dans une seconde position, n'interférant par sur le parcours du ruban (11) avant que ce dernier n'atteigne la tête imprimante (14), en aval d'un couteau (15) pour détacher les étiquettes du ruban 11, le ruban (11) pouvant entourer, dans cette seconde position, le rouleau moteur su une bonne proportion de sa périphérie.
2. Machine à imprimer selon la revendication 1, caractérisée par le fait que la tête imprimante est à aiguille précédée d'un tampon ou d'un cliché qui prédispose le texte fixe de chaque étiquette.
3. Machine à imprimer selon la revendication 1 ou 2 caractérisée par le fait que la seconde position du groupe de rouleaux (20 et 21) est telle que l'effort d'entraînement produit par le rouleau enrouleur final produit une composante (P) qui tend à pousser le rouleau de pression (21) contre le rouleau moteur (20) en augmentant ainsi l'adhérence du ruban (11) sur celui-ci.
4. Machine à imprimer, selon n'importe laquelle des revendications précédentes caractérisée par le fait que le rouleau enrouleur (17) est mis en mouvement par un moteur à courant continu qui peut développer deux couples: un couple mineur lorsque la machine à imprimer écrit et que le ruban (11) est arrêté, mais tendu, et un couple majeur quand le moteur pas à pas qui actionne le rouleau moteur (20) se déplace d'un ou de plusieurs pas, aussi bien pour avancer d'une ligne d'écriture que pour se déplacer d'une étiquette à la suivante.
EP19830102706 1982-03-18 1983-03-18 Machine pour imprimer des étiquettes ou analogues pour les distribuer ou pour les séparer du support siliconisé Expired EP0089642B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2118682U 1982-03-18
IT2118682U IT8221186V0 (it) 1982-03-18 1982-03-18 Stampante per etichette, cartellini o simili atta a realizzare sia la distribuzione delle etichette stampate che il distacco delle stesse dal proprio supporto siliconato.

Publications (2)

Publication Number Publication Date
EP0089642A1 EP0089642A1 (fr) 1983-09-28
EP0089642B1 true EP0089642B1 (fr) 1985-08-28

Family

ID=11178072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830102706 Expired EP0089642B1 (fr) 1982-03-18 1983-03-18 Machine pour imprimer des étiquettes ou analogues pour les distribuer ou pour les séparer du support siliconisé

Country Status (3)

Country Link
EP (1) EP0089642B1 (fr)
DE (1) DE3360645D1 (fr)
IT (1) IT8221186V0 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH447226A (de) * 1966-02-25 1967-11-30 Bizerba Werke Kraut Kg Wilh Druckwerk
IT1130975B (it) * 1980-03-17 1986-06-18 Leptons Italia Srl Dispositivo di movimentazione della carta per sovrastampanti di etichette o simili

Also Published As

Publication number Publication date
DE3360645D1 (en) 1985-10-03
EP0089642A1 (fr) 1983-09-28
IT8221186V0 (it) 1982-03-18

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