EP3283300B1 - Dispositif et procédé d'impression d'étiquettes par impression thermique - Google Patents

Dispositif et procédé d'impression d'étiquettes par impression thermique Download PDF

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Publication number
EP3283300B1
EP3283300B1 EP16757020.9A EP16757020A EP3283300B1 EP 3283300 B1 EP3283300 B1 EP 3283300B1 EP 16757020 A EP16757020 A EP 16757020A EP 3283300 B1 EP3283300 B1 EP 3283300B1
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EP
European Patent Office
Prior art keywords
counter
pressure element
thermal
pressure
carrier
Prior art date
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Active
Application number
EP16757020.9A
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German (de)
English (en)
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EP3283300A1 (fr
Inventor
Winfried Vicktorius
Marcus Korthäuer
Peter Wolff
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Espera Werke GmbH
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Espera Werke GmbH
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Priority to PL16757020T priority Critical patent/PL3283300T3/pl
Publication of EP3283300A1 publication Critical patent/EP3283300A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4075—Tape printers; Label printers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
    • B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
    • B41J2/335—Structure of thermal heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/312—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with print pressure adjustment mechanisms, e.g. pressure-on-the paper mechanisms

Definitions

  • Thermal printing refers to a technique in which a thermosensitive medium is changed in color, in particular blackened, by the action of heat at the site of the action of heat.
  • the punctual heat action is caused by one or more rows of small heating resistors, which are arranged in the thermal bar of the thermal head.
  • Each heating resistor also called Dot, can be individually controlled and heated.
  • Thermal printing distinguishes thermal direct printing, thermal transfer printing and sublimation printing.
  • direct thermal printing a thermo-sensitive paper is immediately blackened by selective heat at the site of heat input. It is also known special paper for direct thermal printing, which generates different colors at the place of heat input at different levels of heat.
  • the paper to be printed is not passed directly past the thermal strip, but the paper is guided past the thermal strip together with a special film (transfer film), the transfer film being arranged between the paper and the thermal strip.
  • transfer film By the punctual Heat in the area of heat input melts the color layer on the transfer foil and is absorbed by the adjacent paper.
  • a transfer film is placed between the paper to be printed and the thermal strip. Due to the punctual heat input, however, the color layer on the transfer film does not melt here, but instead the dye changes into the gaseous state and is absorbed by the adjacent paper.
  • thermosensitive labels preferably self-adhesive labels
  • the labels are either self-adhesive labels detachably arranged on a carrier strip or linerless labels which are provided as a continuous strand and are separated by cutting.
  • the labels and / or the carrier strip may consist of paper or plastic. All of these types of labels, which are provided in particular as roll goods and arranged in the printer, are also part of the invention, which will be described in detail later.
  • the thermal bar is movably mounted in the printer, wherein the position of the thermal bar and thus the pressing force with which the thermal bar is pressed against the counter-pressure element, can be adjusted individually.
  • An adjustment of a thermal bar by means of a stepping motor is known, for example from the DE 37 33 785 A1 , of the DE 10116 584 B4 and the JP H05-116353 A ,
  • a stepper motor for adjusting the thermal strip known, but alternatively, a manual adjustment via a handwheel is possible.
  • the counter-pressure element is stationary, that is not adjustable.
  • a common problem with thermal printing is that the dots age over time and thus generate less heat. The result is a deterioration of the print quality on the printed labels. It is therefore necessary to replace the thermal bar after a certain period of operation, which increases the operating costs.
  • the counter-pressure element By the counter-pressure element relative to the insertion gap, namely in the direction of the insertion gap, i. towards the insertion nip (thereby reducing the insertion nip), and accordingly also in the opposite direction, i. e. can be moved from the insertion nip (thereby increasing the insertion nip) and can be pressed against the thermal strip, during the printing operation, the pressing force of the thermal strip against the counter-pressure element can be increased, if it is determined that the impression quality has deteriorated. It is according to the invention for the regular readjustment of the pressing force so not the usually spring-mounted thermal bar driven together with the thermal head and the spring elements, but the pressure element or the counter-pressure element carrier.
  • an advantage is that the possibility of moving the counterpressure element or the counterpressure element carrier also enables the interior of the printing device to be released and made accessible to maintenance personnel by the counterpressure element or the counterpressure element carrier away from the thermal strip into one opened end position (maintenance position) is moved.
  • This movement can be a translatory movement (linear movement) or pivoting movement.
  • the counter-pressure element carrier relative to an end position (a working position) in which this is applied to the thermal bar with a maximum pressure force by at least 45 °, preferably at least 60 °, more preferably at least 90 ° away pivot, thereby creating an inspection opening, through which the interior is easily accessible.
  • a portion of the counter-pressure element carrier or the entire counter-pressure element carrier relative to the insertion or in and against the direction of the insertion linear (translational) or pivotable (rotational), movable.
  • the counter-pressure element can be linearly moved or pivoted in the direction of the insertion gap or toward the thermal strip, which makes it possible to change a pressure force of the thermal strip on the counter-pressure element.
  • the counter-pressure element carrier is pivotable about a pivot axis parallel to the insertion gap.
  • the counter-pressure element carrier has a lever arm which extends from the pivot axis to the counter-pressure element carrier.
  • the lever arm which is in particular identical to the previously defined portion of the counter-pressure element carrier, carries the counter-pressure element and displaces its position when the counter-pressure element carrier is moved.
  • the counter-pressure element carrier is connected via a gear to a motor, which in particular has a motor shaft.
  • the motor is an electric motor, preferably a path-controlled motor, for example a stepping motor, or a force-controlled motor, for example a DC, EC or AC motor.
  • the motor then, when it is turned on or operated, the movement of the counter-pressure element carrier.
  • the transmission preferably has at least one the counter-pressure element carrier rotatably (immovably) connected wheel or wheel segment, whose axis of rotation is coaxial with the pivot axis of the counter-pressure element carrier, as well as a driven by the motor, in particular rotatably connected to the motor shaft, drive wheel.
  • the counterpressure element or the counterpressure element carrier acts with a first stop, which limits the movement of the counterpressure element in the direction of the insertion gap (towards the insertion gap), and / or with a second stop, which limits the movement of the counterpressure element in the direction away from the insertion gap.
  • a first stop defines, in particular, a first end position in which the pressing force of the thermal strip on the counter-pressure element has a maximum value.
  • the second stop defines in particular a further end position, which serves for maintenance purposes and in which the counter-pressure element carrier is at a maximum distance from the first end position. In this further end position (maintenance position), the counter-pressure element does not touch the thermal strip, so that the pressure force is also 0.
  • the counter-pressure element carrier or the wheel or wheel segment has a groove or a slot in which / a stationary projection, in particular bolts, is guided, which forms the first stop and / or second stop.
  • the groove or elongated hole has a curved course, such that the center line of the groove or of the slot extends on a circular line which always has the same distance from the pivot axis.
  • the lead is in the printing device stationary and at least partially disposed within the groove or the slot, wherein the groove or the slot are movable relative to the projection, in particular between the first end position with the maximum value for the pressing force and the other end position in which the counter-pressure element of the thermal strip is spaced.
  • two or more of the elements thermal head carrier, pivot axis, motor, first stop and second stop are immovable (stationary) relative to each other.
  • the respective elements are not movable within the device and always have the same distance from each other. However, this does not exclude that the printing device is mounted movable overall.
  • the detection of the exact position of the counter-pressure element or counter-pressure element carrier has the advantage that the end positions can be approached exactly or even from the first end position (first working position) spaced further position (further working position) in which the counter-pressure element still touches the thermal bar, but the pressure force is lower than in the end position or working position with the maximum value for the pressing force.
  • the pressing force is chosen in particular so that the impression quality is still sufficiently good, the thermal strip wear but as low as possible. Should then deteriorate in the course of the operating time, the impression quality, the pressure force can be increased by adjusting the position of the counter-pressure element or counter-pressure element carrier.
  • this in particular the counter-pressure element or the counter-pressure element carrier, a pressure sensor.
  • the pressure sensor is in particular configured to detect the pressure force of the thermal strip on the counterpressure element.
  • the pressure sensor is integrated in the counter-pressure element.
  • the pressure sensor is integrated in the thermal strip or is arranged elsewhere between the thermal head and the counter-pressure element carrier. Such a pressure sensor allows the exact detection and adjustment of the pressure force and is thus a preferred supplement to the aforementioned other sensors.
  • control device is configured (configured) such that it controls the movement of the counterpressure element or the section or lever arm of the counterpressure element carrier as a function of sensor signals of the position sensor and / or counter and / or optical sensor and / or pressure sensor.
  • the control device is designed (configured) such that steps (b) to (d) are repeated in sequence until the further position corresponds to the end position.
  • the control device can then also in the end position, in particular immediately after reaching the end position in the manner described above and / or after the degree of blackening or color intensity falls below the reference value or value range in the end position, generate a warning signal which gives the user a replacement time for the thermal bar indicates.
  • the thermal head is resilient, in particular via at least one bending spring, preferably leaf spring, and / or at least one coil spring, preferably helical compression spring, connected to the thermal head carrier.
  • the counter-pressure element is resilient, in particular via at least one bending spring, preferably leaf spring, and / or at least one coil spring, preferably helical compression spring, connected to the counter-pressure element carrier.
  • the predetermined pressure force is then in particular a spring force. It is preferred as explained above, the predetermined pressure force, in particular spring force, adjustable.
  • step (a) the counter-pressure element is moved to its defined by the first stop or position sensor or the counter end position and then the pressing force, in particular spring force, the thermal bar relative to the arranged in the end position counter-pressure element to a preset value is set. It is thus determined the counter-pressure element or the counter-pressure element carrier in the end position, so that it is immovable relative to the stationary elements within the printing device. Subsequently, the thermal head is moved against (or in the direction of) the counterpressure element until the pressure force reaches a certain value. This particular value corresponds to the previously described maximum contact pressure.
  • the counter-pressure element or the counter-pressure element carrier can then be moved back slightly from its end position, in particular by only a few stepper steps (full steps or partial steps) of the stepping motor, in which the pressure force is less than in the end position and, in particular, a compromise between print quality and thermal strip wear.
  • the counterpressure element or the counterpressure element carrier can then be moved further in the direction of the end position, as a result of which the pressure force is then slightly increased again.
  • step (a) the pressing force, in particular spring force, is adjusted to a predetermined value by moving the counterpressure element in the direction of the insertion gap and pressing the counterpressure element against the thermal strip.
  • the counter-pressure element carrier or the counterpressure element is moved out of a position in which the counterpressure element does not contact the thermal strip at all or only with a relatively small pressure force, in the direction of the insertion gap or the thermal strip, until the pressure force has a value corresponding to that previously mentioned compromise between impression quality and Thermoleistenversch obtains.
  • the counter-pressure element or the counter-pressure element carrier is moved from the second end position, in which the counterpressure element is spaced from the thermal strip (maintenance position), into the position forming the compromise between impression quality and thermal strip wear.
  • the number of stepper steps (full steps or substeps) of a stepper motor between these two positions can then be stored, thus allowing a reproducible start of the optimal thermoologicalnantikkraft. Since it is said as preferred in the direction of Ein Industriesspalts no end position or no stop for the counter-pressure element, the pressure can be set almost arbitrarily high.
  • the in the FIGS. 1 to 3 shown device 1 is used for printing labels 2, for example by direct thermal printing.
  • the labels 2 are here by way of example self-adhesive labels 2, which are detachably arranged on a carrier strip (not shown), which is stored as a roll in the printing device or the printer 1 unwound.
  • a counter-pressure element 6 is arranged, which is part of a pivotally arranged counter-pressure element carrier 5.
  • the counter-pressure element 6 is designed here as a pressure-felt coated strip, but in principle may also be designed as a pressure roller.
  • the pressing force with which the thermal strip 4 presses in printing operation or in one of the working positions against the counter-pressure element 6, is determined by the spring force of the springs 26 and 27 and the other by the position of the counter-pressure element carrier 5 or counter-pressure element 6. So kann the counter-pressure element carrier 5 is pivoted about a pivot axis 10 extending parallel to the insertion gap 7, whereby a section 9 or lever arm 11 of the counter-pressure element carrier 5 relative to the insertion gap 7, that is, in the direction of the Ein Concretespalts 7 or against the direction of the Ein Industriesspalts 7, moves. It is in the in Fig. 1 shown working position of the counter-pressure element 5, the pressing force is still relatively low, whereas in the in Fig.
  • the counter-pressure element carrier 5 can also be moved to an open position (second end position or maintenance position).
  • an open position (what in Fig. 3
  • the counter-pressure element 6 no longer touches the thermal strip 4, but is so far away from the thermal strip 4, that the interior of the device 1 through the thus formed opening between the thermal strip 4 and the counter-pressure element 6, for example for maintenance , Cleaning or repair or for the replacement of the label roll or thermal bar is easily accessible.
  • the counter-pressure element carrier 5 is connected via a gear 12 to a motor 13 which has a motor shaft 14.
  • the motor 13 causes the movements of the counter-pressure element carrier 5.
  • the gear 12 here has a connected to the counter-pressure element carrier 5 gear segment 15 whose axis of rotation 16 is coaxial with the pivot axis 10, and a driven by the motor 13 and the motor shaft 14 rotatably connected drive pinion 17 ,
  • the drive pinion 17 engages in the gear segment 15 and thus transmits the rotational movement of the motor shaft 14 to the counter-pressure element carrier 5.
  • the motor 13 is a stepper motor connected to a counter 28.
  • the counter 28 is configured to count the individual steps (full steps or partial steps) in the respective direction of rotation of the stepping motor and thus reproducibly to approach the individual positions of the counter-pressure element carrier 5.
  • a stationary relative to the pivot axis 10 bolt-shaped projection 21 is guided, which forms a first stop 18 on its underside shown here and a second stop 19 on its upper side.
  • the first stop 18 limits the movement of the counter-pressure element 6 in the direction of the insertion gap 7, in this case upwards.
  • the second stop 19 limits the movement of the counter-pressure element 6 in the direction away from the insertion gap 7, in this case downwards.
  • the thermal head carrier 8 the pivot axis 10, the motor 13 and the pin 21 and thus the first and second stops 18 and 19 are immovable relative to each other.
  • the thermal head carrier 8 is adjustable.
  • the device 1 also has an optical sensor 23, which may be a camera.
  • the optical sensor 23 is arranged at a position of the device 1 in which it can detect the degree of blackening or color intensity of the printed image of this label 2 directly when a label 2 is being printed.
  • a pressure sensor 24 is provided in the counter-pressure element 6, which serves for detecting the pressing force of the thermal strip 4 to the counter-pressure element 6.
  • the sensors 22, 23 and 24 and the counter 28 are (electronically) connected to a control device 25, which is also part of the device 1.
  • the control device 25 controls the movement of the counter-pressure element carrier and thus of the counter-pressure element 6 or of the section 9 or lever arm 11 relative to the insertion gap 7 depending on the sensor signals and the information from the counter 28.
  • the controller 25 may also be connected to the thermal strip (electronically) and read out values of the temperature or the electrical resistance of individual or all of the heating resistors 29 of the thermal strip 4.
  • the counter-pressure element carrier 5 and the counter-pressure element 6 approaches more and more of the Fig. 2 shown end position.
  • the end position is reached and then the degree of darkness or color intensity detected by the optical sensor 23 falls below the predetermined reference value, the thermal bar 4 or the thermal head 3 needs to be replaced.
  • stepper steps necessary for this purpose (full steps or partial steps) of the stepping motor 13 is stored in particular, for example by the counter 28 in conjunction with the control device 25, and thus enables a reproducible starting of the optimal Thermoleistenan horrkraft in the future, once a new thermal bar has been used.

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Claims (17)

  1. Dispositif (1) d'impression d'étiquettes (2) par impression thermique, le dispositif comprenant :
    - une tête thermique (3) qui comporte une bande thermique (4),
    - un support d'élément de contre-pression (5) qui comporte un élément de contre-pression (6),
    une fente d'insertion (7) étant ménagée entre la bande thermique (4) et l'élément de contre-pression (6), laquelle fente d'insertion est traversée par l'étiquette respective (2) à imprimer,
    la tête thermique (3) étant fixée de manière mobile à un support de tête thermique (8) et
    la bande thermique (4) étant pressée contre l'élément de contre-pression (6) avec une force de pression prédéterminée,
    l'élément de contre-pression (6) étant mobile par rapport à la fente d'insertion (7), à savoir en direction de la fente d'insertion, ce pour quoi la fente d'insertion est réduite, et en conséquence également dans la direction opposée, ce pour quoi la fente d'insertion est augmentée,
    le dispositif comprenant en outre un moyen de commande (25), le moyen de commande (25) étant conçu de manière à effectuer successivement les étapes suivantes :
    (a) déplacer l'élément de contre-pression (6) par rapport à la fente d'insertion (7) jusque dans une première position dans laquelle la force de pression est plus faible que dans une position finale qui est définie par une première butée (18) ou par un premier capteur de position (22) ou par un compteur (28) et dans laquelle la force de pression a une valeur maximale,
    (b) détecter un degré de noircissement ou d'intensité de coloration à l'aide d'un capteur optique (23),
    (c) comparer le degré de noircissement ou d'intensité de coloration détecté à une valeur de référence ou une plage de valeurs de référence prédéterminée pour le degré de noircissement ou d'intensité de coloration,
    (d) déplacer l'élément de contre-pression (6) vers la bande thermique (4) vers une autre position dans laquelle la force de pression est supérieure à celle dans la première position lorsque le degré de noircissement ou d'intensité de coloration détecté est inférieur à la valeur de référence ou à la plage de valeurs de référence.
  2. Dispositif (1) d'impression d'étiquettes (2) par impression thermique, le dispositif comprenant:
    - une tête thermique (3) qui comporte une bande thermique (4),
    - un support d'élément de contre-pression (5) qui comporte un élément de contre-pression (6),
    une fente d'insertion (7) étant ménagée entre la bande thermique (4) et l'élément de contre-pression (6), laquelle fente d'insertion est traversée par l'étiquette respective (2) à imprimer,
    la tête thermique (3) étant fixée de manière mobile à un support de tête thermique (8) et
    la bande thermique (4) étant pressée contre l'élément de contre-pression (6) avec une force de pression prédéterminée,
    l'élément de contre-pression (6) étant mobile par rapport à la fente d'insertion (7), à savoir en direction de la fente d'insertion, ce pour quoi la fente d'insertion est réduite, et de façon correspondante également dans la direction opposée, ce pour quoi la fente d'insertion est augmentée,
    le dispositif comprenant en outre un moyen de commande (25), le moyen de commande (25) étant conçu de manière à commander le mouvement de l'élément de contre-pression (6) ou d'une partie (9) du support d'élément de contre-pression (5) ou d'un bras de levier (11) du support d'élément de pression (5) en fonction de valeurs, lues sur la bande thermique (4), de la température ou de la résistance électrique de résistances chauffantes individuelles ou de toutes les résistances chauffantes (29) de la bande thermique (4).
  3. Dispositif (1) selon la revendication 2, caractérisé en ce que la partie (9) du support d'élément de contre-pression (5) ou tout le support d'élément de contre-pression (5) peut être déplacé(e) de manière linéaire ou pivotante par rapport à la fente d'insertion (7).
  4. Dispositif (1) selon la revendication 3, caractérisé en ce que le support d'élément de contre-pression (5) peut pivoter sur un axe de pivotement (10) parallèle à la fente d'insertion (7) et de préférence le bras de levier (11) s'étend de l'axe de pivotement (10) à l'élément de contre-pression (6).
  5. Dispositif (1) selon l'une des revendications 3 et 4, caractérisé en ce que le support d'élément de contre-pression (5) est relié par une transmission (12) à un moteur (13), qui comporte en particulier un arbre de moteur (14), de préférence l'engrenage (12) comporte au moins une roue, en particulier une roue dentée ou un segment de roue (15), en particulier un segment de roue dentée (15), roue qui est reliée solidairement en rotation au support d'élément de contre-pression (5) et dont l'axe de rotation (16) s'étend coaxialement à l'axe de pivotement (10) du support d'élément de contre-pression (5), ainsi qu'une roue d'entraînement (17), en particulier un pignon d'entraînement (17), qui est entraînée par le moteur (13) et qui est reliée solidairement en rotation en particulier à l'arbre de moteur (14).
  6. Dispositif (1) selon la revendication 5, caractérisé en ce que l'élément de contre-pression (6) ou le support d'élément de contre-pression (5) coopère, en particulier par le biais de la roue ou du segment de roue (15), avec la première butée (18), qui limite le mouvement de l'élément de contre-pression (6) en direction de la fente d'insertion (7), et/ou avec une deuxième butée (19), qui limite le mouvement de l'élément de contre-pression (6) dans la direction opposée à la fente d'insertion (7), de préférence le support d'élément de contre-pression (5) ou la roue ou le segment de roue (15) comportant une gorge ou un trou oblong (20) dans laquelle/lequel est guidée une saillie (21), en particulier un boulon (21), qui supporte la première butée (18) et/ou la deuxième butée (19).
  7. Dispositif (1) selon l'une des revendications 5 et 6, caractérisé en ce que au moins deux ou plus des éléments parmi le support de tête thermique (8), l'axe de pivotement (10), le moteur (13), la première butée (18) et la deuxième butée (19) sont immobiles l'un par rapport à l'autre.
  8. Dispositif (1) selon l'une des revendications 1 et 3 à 7, caractérisé en ce que le dispositif (1), en particulier l'élément de contre-pression (6) ou le support d'élément de contre-pression (5), comporte le capteur de position (22) et/ou en particulier le moteur (13) comporte le compteur (28).
  9. Dispositif (1) selon l'une des revendications précédentes, caractérisé en ce que le dispositif (1), en particulier l'élément de contre-pression (6) ou la bande thermique (4), comporte au moins un capteur de pression (24).
  10. Dispositif (1) selon l'une des revendications 2 à 9, caractérisé en ce que le moyen de commande (25) commande le mouvement de l'élément de contre-pression (6) ou de la partie (9) du support d'élément de contre-pression (5) ou du bras de levier (11) du support d'élément de contre-pression (5) en direction de la fente d'insertion (7).
  11. Dispositif (1) selon l'une des revendications 2 à 10, caractérisé en ce que le moyen de commande (25) est conçu de manière à commander le mouvement de l'élément de contre-pression (6) ou de la partie (9) du support d'élément de contre-pression (5) ou du bras de levier. (11) du support d'élément de contre-pression (5) en fonction de signaux du capteur de position (22) et/ou du compteur (28) et/ou du capteur optique (23) et/ou du capteur de pression (24).
  12. Dispositif (1) selon l'une des revendications 1 et 3 à 11, caractérisé en ce que le moyen de commande (25) est conçu de manière à répéter les étapes (b) à (d) dans l'ordre jusqu'à ce que l'autre position corresponde à la position finale.
  13. Dispositif (1) selon l'une des revendications précédentes, caractérisé en ce que la tête thermique (3) est reliée de manière élastique, notamment par le biais d'au moins un ressort de flexion (26), de préférence un ressort à lame (26), et/ou au moins un ressort hélicoïdal (27), de préférence un ressort de compression hélicoïdal (27), au support de tête thermique (8) et la force de pression prédéterminée est notamment une force de ressort, la force de pression prédéterminée, en particulier la force de ressort, étant de préférence réglable.
  14. Procédé d'impression d'étiquettes (2), à l'aide d'un dispositif (1) selon l'une des revendications précédentes, caractérisé en ce que les étapes suivantes sont effectuées successivement :
    (a) déplacer l'élément de contre-pression (6) en direction de la bande thermique (4) jusque dans une première position dans laquelle la force de pression est inférieure à celle dans une position finale qui est définie par une première butée (18), qui limite le mouvement de l'élément de contre-pression (6) en direction de la fente d'insertion (7), ou par un capteur de position (22) ou par un compteur (28) et dans laquelle la force de pression a une valeur maximale,
    (b) détecter un degré de noircissement ou d'intensité de coloration à l'aide d'un capteur optique (23),
    (c) comparer le degré de noircissement ou d'intensité de coloration détecté à une valeur de référence prédéterminée ou une plage de valeurs de référence pour le degré de noircissement ou d'intensité de coloration,
    (d) déplacer l'élément de contre-pression (6) en direction de la bande thermique (4) jusque dans une autre position dans laquelle la force de pression est supérieure à celle dans la première position lorsque le degré de noircissement ou d'intensité de coloration détecté est inférieur à la valeur de référence ou à la plage de valeurs de référence.
  15. Procédé d'impression d'étiquettes (2), à l'aide d'un dispositif (1) selon l'une des revendications 1 à 13, caractérisé en ce que les étapes suivantes sont effectuées successivement :
    (a) déplacer l'élément de contre-pression (6) en direction de la bande thermique (4) jusque dans une première position dans laquelle la force de pression est inférieure à celle dans une position finale qui est définie par une première butée (18), qui limite le mouvement de l'élément de contre-pression (6) en direction de la fente d'insertion (7), ou par un capteur de position (22) ou par un compteur (28) et dans laquelle la force de pression a une valeur maximale,
    (b) lire une valeur de la température ou de la résistance électrique de résistances chauffantes individuelles ou de toutes les résistances chauffantes (29) de la bande thermique (4),
    (c) comparer la valeur lue de la température ou de la résistance électrique à une valeur de référence ou une plage de valeurs de référence prédéterminée pour la température ou la résistance électrique,
    (d) déplacer l'élément de contre-pression (6) en direction de la bande thermique (4) jusque dans une autre position dans laquelle la force de pression est supérieure à celle dans la première position lorsque la valeur lue de la température ou de la résistance électrique est inférieure à la valeur de référence ou à la plage de valeurs de référence.
  16. Procédé selon la revendication 14 ou 15, caractérisé en ce que les étapes (b) à (d) sont répétées jusqu'à ce que l'autre position corresponde à la position finale.
  17. Procédé selon l'une des revendications 14 à 16, caractérisé en ce que
    l'élément de contre-pression (6) est déplacé, avant l'étape (a), jusque dans sa position finale définie par la première butée (18) ou par le capteur (22) ou par le compteur (28), puis la force de pression de la bande thermique (4) est réglée par rapport à l'élément de contre-pression (6), disposé dans la position finale, à une valeur prédéterminée, et/ou
    la force de pression est ajustée, avant l'étape (a), à une valeur prédéterminée par déplacement de l'élément de contre-pression (6) en direction de la fente d'insertion (7) et par pression de l'élément de contre-pression (6) contre la bande thermique (4).
EP16757020.9A 2015-11-02 2016-08-25 Dispositif et procédé d'impression d'étiquettes par impression thermique Active EP3283300B1 (fr)

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DE102015118732.9A DE102015118732A1 (de) 2015-11-02 2015-11-02 Vorrichtung und Verfahren zum Bedrucken von Etiketten mittels Thermodruck
PCT/EP2016/070051 WO2017076533A1 (fr) 2015-11-02 2016-08-25 Dispositif et procédé d'impression d'étiquettes par impression thermique

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ES (1) ES2769058T3 (fr)
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JP7178279B2 (ja) * 2019-01-29 2022-11-25 富士通コンポーネント株式会社 プリンタ装置
ES2911269T3 (es) 2019-12-18 2022-05-18 Bizerba Se & Co Kg Impresora de etiquetas
EP3838602B1 (fr) 2019-12-18 2022-03-30 Bizerba SE & Co. KG Imprimante d'étiquettes
ES2915847T3 (es) 2019-12-18 2022-06-27 Bizerba Se & Co Kg Impresora de etiquetas
ES2919598T3 (es) 2019-12-18 2022-07-27 Bizerba Se & Co Kg Impresora de etiquetas
DE102020121012A1 (de) 2020-08-10 2022-02-10 Mobil-Mark Gmbh Aufsatz für einen Gerätekopf eines Lasermarkierungsgeräts

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CN108136796A (zh) 2018-06-08
CA3000287A1 (fr) 2017-05-11
PL3283300T3 (pl) 2020-06-01
ES2769058T3 (es) 2020-06-24
US20180297376A1 (en) 2018-10-18
WO2017076533A1 (fr) 2017-05-11
DK3283300T3 (da) 2020-03-09
CA3000287C (fr) 2023-10-03
US10875325B2 (en) 2020-12-29
DE102015118732A1 (de) 2017-05-04
CN108136796B (zh) 2020-03-03
EP3283300A1 (fr) 2018-02-21

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