JP2018083332A - Indirect transfer type card printer and correction method of conveyance deviation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indirect transfer type card printer which includes means capable of preventing the conveyance deviation applicable to a transfer film and ink ribbon.SOLUTION: An indirect transfer type card printer includes conveyance deviation prevention means on the front stage of a take-up roll 4. The conveyance deviation prevention means includes: cue marks 3 which are provided on both sides in the width direction of a film 5 and can detect the parallel degree in the conveyance direction of conveyance of the film; conveyance deviation detection means 2 which acquires the amount of the conveyance deviation; and conveyance deviation correction means 10 which corrects the conveyance deviation. The conveyance deviation correction means includes: a conveyance path corner part shaft 1 which is provided on the front stage of the take-up roll; a fulcrum 8 which is provided on one end, and supports the shaft in a rotatable manner within the same plane as the surface of the film in the state of being stretched by the take-up roll and the conveyance path corner part shaft; and drive means 9 which is provided on the other end and moves the conveyance path corner part shaft so as to rotate at a certain angle within the plane.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an indirect transfer type card printer. More specifically, the present invention relates to an indirect transfer type card printer provided with means for conveying deviation and a method for correcting conveyance deviation using the card printer.

  When printing characters or marks on an IC card smaller than a normal IC card called a SIM card or UIM card, the printing surface is not flat in a card printer that directly transfers ink ribbon ink with a thermal head. Therefore, good printing was difficult.

  Therefore, an indirect transfer type card printer that prints on a printing material via an intermediate transfer film is used.

  The indirect transfer type card printer is a card printer that transfers the ink layer of the ink ribbon unwound from the winding body of the ink ribbon to an intermediate transfer film once using a thermal head, and then indirectly transfers the ink layer to a printing material. .

  The ink ribbon used in the indirect transfer type card printer uses a very thin film having a thickness of 3 μm to 6 μm as a supporting base material, so that the mechanical strength is insufficient and is provided at both ends in the width direction of the photographic film. Means for holding and sending perforations by sprockets cannot be used. For this reason, the indirect transfer type card printer is not provided with a means for preventing the conveyance deviation.

  For example, Patent Document 1 discloses a web conveying device as a technique for suppressing conveyance deviation of a film to be conveyed and preventing meandering without using a means for conveying a film on which perforation is formed by a sprocket. This technique includes a first transport mechanism in a printing apparatus including a first transport mechanism section on the upstream side in the web transport direction, a second transport mechanism section on the downstream side, and a buffer mechanism section in the middle thereof. A first sensor and a second sensor for detecting meandering are provided between the buffer mechanism and the buffer mechanism and between the buffer mechanism and the second transport mechanism, respectively. When the first sensor detects meandering or a sudden deformation of the web, a correction value is calculated from the detection results of the first and second sensors, and the meandering is performed by the pressure roller of the second transport mechanism unit based on the correction value. Correction is performed.

  However, this technique is a technique related to a web-type printing apparatus, and is difficult to apply to an indirect transfer type card printer that uses a very thin film such as an ink ribbon having a base film thickness of 3 μm to 6 μm. It is believed that there is.

JP 2008-44750 A

  In view of the above circumstances, it is an object of the present invention to provide an indirect transfer type card printer provided with means capable of preventing conveyance deviation applicable to a transfer film and an ink ribbon.

As means for solving the above-mentioned problems, the invention according to claim 1 of the present invention is an indirect transfer type card printer provided with conveyance deviation prevention means for preventing conveyance deviation of a film,
Equipped with a transport misalignment prevention means for preventing film misalignment at the front stage of the winding roll,
Conveyance prevention means
A cue mark that makes it possible to detect whether the film transport provided on both sides of the film width direction is parallel to the transport direction;
A transport misalignment detecting means for detecting a cue mark and acquiring the direction and amount of the transport misalignment;
A conveyance deviation correcting means for correcting the conveyance deviation based on the direction and amount of the conveyance deviation acquired by the conveyance deviation detecting means, and
Conveyance deviation correction means
A conveyance path corner shaft that is provided in the front stage of the winding roll and can be conveyed with the film stretched;
Provided at one end of the conveyance path corner shaft, a fulcrum that is rotatably supported in the same plane as the surface of the film stretched by the winding roll and the conveyance path corner shaft,
An indirect transfer type card printer, comprising: a driving unit provided at the other end portion for rotating the conveyance path corner shaft in the same plane as the film surface.

  According to a second aspect of the present invention, in the indirect transfer type card printer according to the first aspect, the conveyance deviation detecting means includes a photo interrupter.

  The invention according to claim 3 is the card printer of the indirect transfer system according to claim 1 or 2, wherein the driving means includes an electric slider.

  The invention according to claim 4 is the card printer of the indirect transfer system according to any one of claims 1 to 3, wherein the fulcrum is provided with a ball bearing.

Further, the invention according to claim 5 is a method for correcting conveyance deviation in the indirect transfer type card printer according to any one of claims 1 to 4,
A step of detecting the cue mark and acquiring the direction and amount of the conveyance deviation;
The conveyance deviation correcting means comprises a step of correcting the conveyance deviation based on the direction and amount of the conveyance deviation acquired by the conveyance deviation detection means,
The direction of conveyance deviation is
If the film is shifted to the left in the conveyance direction, rotate the conveyance unit corner shaft closer to the winding roll by an angle determined based on the amount of conveyance deviation,
When the film is shifted to the right in the downstream direction of the film conveyance direction, the conveyance unit corner shaft is rotated away from the winding roll by an angle determined based on the amount of conveyance deviation. This is a method for correcting a conveyance deviation.

  According to the indirect transfer type card printer of the present invention, the cue mark formed on the film is detected, the direction and amount of the conveyance deviation are acquired, and the take-up roll and the preceding stage are provided based on the information. The film is stretched by the transport path corner shaft, and the end of the transport path corner shaft is taken as a fulcrum in the same plane as the surface where the film is stretched. Since the conveyance deviation can be corrected by rotating in a direction closer to or away from the sheet, it is possible to provide an indirect transfer type card printer that does not cause a winding deviation in the winding roll due to the correction of the conveyance deviation.

  Further, according to the method for correcting the conveyance deviation of the present invention, the conveyance deviation can be corrected in the indirect transfer type card printer of the present invention.

FIG. 5 is a schematic explanatory view illustrating the operation status of the indirect transfer type card printer of the present invention, where (a) shows the status of the conveyance misalignment prevention means when the conveyance misalignment occurs on the left side toward the downstream in the film conveyance direction. FIG. 9B is an explanatory diagram illustrating the situation of the conveyance deviation prevention means when the conveyance deviation is caused to the right in the downstream direction of the film conveyance direction.

The indirect transfer type card printer of the present invention will be described with reference to FIG.
<Indirect transfer card printer>
The indirect transfer type card printer of the present invention is an indirect transfer type card printer 20 provided with a conveyance deviation prevention means 7 for preventing conveyance deviation of the film 5. Here, the film 5 indicates a transfer film and an ink ribbon (transfer ribbon) used in an indirect transfer type card printer.

  The indirect transfer type card printer 20 of the present invention is provided with a conveyance deviation prevention means 7 for preventing conveyance deviation of the film 5 in the preceding stage of the winding roll 4.

  The conveyance deviation prevention means 7 detects a cue mark 3 provided on both sides in the width direction of the film 5 and capable of detecting whether the conveyance of the film 5 is parallel to the conveyance direction, and the cue mark 3. A conveyance deviation detecting means 2 for acquiring the direction and amount of conveyance deviation, and a conveyance deviation correcting means 10 for correcting the conveyance deviation based on the direction and amount of conveyance deviation acquired by the conveyance deviation detection means 2. Yes.

  The conveyance deviation correcting means 10 is provided at the front stage of the winding roll 4 and is provided at one end of the conveyance path corner shaft 1 and the conveyance path corner section shaft 1 that can convey the film 5 in a stretched state. The fulcrum 8 that is rotatably supported in the same plane as the surface of the film 5 that has been stretched by the winding roll 4 and the conveyance path corner portion shaft 1, and is provided at the other end, Drive means 9 for rotating the conveyance path corner shaft 1 in the same plane as

  The transport deviation detecting means 2 is not particularly limited. For example, a detection function can be achieved by arranging a light emitting element and a light receiving element facing each other in one package, and an object to be detected blocks light between them. It is possible to use a photo interrupter having The photo interrupter is a method for detecting transmitted light, but may be a method for detecting reflected light from a light emitting element by a light receiving element. In addition, a method of detecting magnetism or the like may be used instead of a method using light.

The driving means 9 is not particularly limited as long as it is a means capable of driving the other end of the conveyance path corner shaft 1 whose one end is rotatably supported in the plane at the fulcrum 8 in the same plane. There is no need. For example, a mechanism capable of controlling the operation by an electric signal such as an electric slider or an electric cylinder can be preferably used. In that case, a control device (not shown) for controlling by an electrical signal is required. The driving force of the driving means 9 is not limited to a mechanism based on an electric driving force, and may be a mechanism using a hydraulic cylinder or the like. In such a case, a mechanism that can be controlled by an electrical signal for controlling the operation is desirable.

  The fulcrum 8 is not particularly limited as long as it is a mechanism that can be supported so as to be stably driven in one direction within a certain plane. For example, a ball bearing can be preferably used.

<Correction method for conveyance deviation>
Next, a description will be given of a method of correcting the conveyance deviation in the indirect transfer type card printer 20 of the present invention.

The method for correcting conveyance misalignment according to the present invention is a method for correcting conveyance misalignment that can be performed in the indirect transfer type card printer 20 according to the present invention.
The conveyance deviation correction method of the present invention includes a step in which the conveyance deviation detection unit 2 detects the cue mark 3 and acquires the direction and amount of the conveyance deviation, and the conveyance deviation correction unit 10 includes the conveyance deviation detection unit 2. And a step of correcting the conveyance deviation based on the direction and amount of the conveyance deviation acquired.

  FIG. 1A illustrates a state in which the conveyance deviation of the film 5 is on the left side of the film 6 wound in the normal position on the winding roll 4 toward the downstream in the film conveyance direction. It is explanatory drawing. In this case, the part connected to the driving means 9 of the conveyance unit corner shaft 1 is moved to the side closer to the winding roll 4 by an angle determined based on the amount of conveyance deviation, and is described in the drawing. The film 5 can be moved in the conveyance misalignment correction direction (the direction toward the right side toward the downstream in the film conveyance direction) to correct the conveyance deviation.

  FIG. 1B is an explanatory view exemplifying a state in which the conveyance deviation of the film 5 is on the right side toward the downstream in the film conveyance direction. In this case, the part connected to the driving means 9 of the conveyance unit corner shaft 1 is moved to the side away from the winding roll 4 by an angle determined based on the amount of conveyance deviation, and tilted, thereby FIG. Similarly, the film 5 can be moved in the conveyance deviation correction direction (the direction toward the left side toward the downstream in the film conveyance direction) described in the drawing to correct the conveyance deviation.

DESCRIPTION OF SYMBOLS 1 ... Conveyance path corner part shaft 2 ... Conveyance deviation detection means 3 ... Cue mark 4 ... Winding roll 5 ... Film 6 ... Film 7 wound up ... Conveyance Misalignment prevention means 8 ... fulcrum 9 ... driving means 10 ... conveyance deviation correction means 20 ... indirect transfer type card printer

Claims (5)

An indirect transfer type card printer provided with a conveyance deviation prevention means for preventing conveyance deviation of a film,
Equipped with a transport misalignment prevention means for preventing film misalignment at the front stage of the winding roll,
Conveyance prevention means
A cue mark that makes it possible to detect whether the film transport provided on both sides of the film width direction is parallel to the transport direction;
A conveyance deviation detecting means for detecting a cue mark and acquiring the amount of conveyance deviation;
A transport misalignment correcting means for correcting the transport misalignment based on the amount of transport misalignment acquired by the transport misalignment detecting means,
Conveyance deviation correction means
A conveyance path corner shaft that is provided in the front stage of the winding roll and can be conveyed with the film stretched;
Provided at one end of the conveyance path corner shaft, a fulcrum that is rotatably supported in the same plane as the surface of the film stretched by the winding roll and the conveyance path corner shaft,
An indirect transfer type card printer, comprising: a driving unit provided at the other end for rotating the conveyance path corner shaft in the same plane as the film surface.   The indirect transfer type card printer according to claim 1, wherein the conveyance deviation detecting unit includes a photo interrupter.   The indirect transfer type card printer according to claim 1, wherein the driving unit includes an electric slider.   The indirect transfer type card printer according to claim 1, wherein the fulcrum includes a ball bearing. A method for correcting a conveyance deviation in an indirect transfer type card printer according to claim 1,
A step of detecting the cue mark and acquiring the direction and amount of the conveyance deviation;
The conveyance deviation correcting means comprises a step of correcting the conveyance deviation based on the direction and amount of the conveyance deviation acquired by the conveyance deviation detection means,
The direction of conveyance deviation is
When the film is shifted to the left in the conveyance direction of the film, only the angle determined based on the amount of conveyance deviation on the side connected to the driving means of the conveyance unit corner shaft toward the winding roll. Move
If the film is displaced to the right in the downstream direction of conveyance, the part connected to the drive means of the conveyance unit corner shaft is away from the take-up roll, and the angle determined based on the amount of conveyance deviation. A method for correcting a conveyance deviation, characterized by moving the carrier.