JP5450166B2 - Transfer printing medium stamp apparatus and transfer printing medium stamp method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer printing medium stamp apparatus and a transfer printing medium stamp method, and more particularly to a transfer printing medium stamp apparatus and a transfer printing medium stamp method for performing a high-speed stamp on a printing medium such as a barcode label being transferred. It is about.

    Conventionally, a stamp device has been developed for stamping necessary stamps on various print media transported on a predetermined transport path. In order to stamp the print media transported at a high speed without stopping. In this case, it is necessary to increase the stamping speed in accordance with the transfer speed of the printing medium (for example, Patent Document 1).

If the transfer speed is further increased compared with the stamping speed, there is a problem that the stamp on the printing medium is shifted and the printing surface cannot be read, or the printing medium becomes dirty due to blurring.
For example, when a barcode is printed on a printing medium such as a barcode label, the printed barcode cannot be read due to a printing error or the like in a barcode verification device for determining or verifying the suitability of the barcode. When the printing is not proper, for example, a stamp “impossible” is stamped on or on the barcode.
However, when the size or pitch of the barcode label in the transfer direction is small, a transfer printing medium stamp device capable of performing stamping at a higher stamping speed is required. However, a stamp device that meets the required performance is required. It was not on the market, and it was requested to develop it.

Japanese Unexamined Patent Publication No. 7-323653

    The present invention has been considered in view of the above problems, and provides a transfer print medium stamp apparatus and a transfer print medium stamp method capable of impressing a transfer print medium at a high speed corresponding to the transfer speed. Let it be an issue.

    Another object of the present invention is to provide a transfer print medium stamp apparatus and a transfer print medium stamp method that enable high-speed and stable stamping without stopping the transfer of the print medium.

    It is another object of the present invention to provide a transfer printing medium stamp device and a transfer printing medium stamp method that prevent the imprinting from shifting or fading even when imprinting at high speed.

    That is, the present invention drives a stamp with a cam that can be rotated in the forward and reverse directions, and a stop mechanism that forcibly stops the rotation of the cam, and a load of the drive motor by reducing the stop shock or impact caused by the stop mechanism. The first invention is a transfer print medium stamp device having a stamp for imprinting on a print medium transferred on a transfer path. A cam mechanism having a cam that is rotatable in forward and reverse directions, an urging mechanism that constantly urges the stamp in a direction away from the print medium, and the normality of the cam that resists the urging force of the urging mechanism. A stamp driving mechanism capable of driving the stamp in the direction of the print medium by any rotation in the reverse direction, and the stamp driven by the stamp driving mechanism A stamp guide mechanism that guides the character medium, a stop mechanism for stopping the rotation of the cam in the forward and reverse directions in the cam mechanism, and an impact caused by the stop of the rotation of the cam by the stop mechanism. A transfer print medium stamping device comprising an impact mitigating mechanism for mitigating.

    A second invention is a transfer printing medium stamping method for impressing a stamp on a printing medium transferred on a transfer path, the cam mechanism having a cam rotatable in forward and reverse directions, and the printing of the stamp. An urging mechanism for constantly urging in a direction away from the medium, and the cam is moved in the direction of the print medium by any rotation in the forward and reverse directions against the urging force of the urging mechanism. , And the stamp is guided toward the print medium so as to stop the rotation of the cam in the forward and reverse directions in the cam mechanism and to alleviate the impact caused by the stop of the rotation of the cam. This is a transfer printing medium stamp method.

    The stamp guide mechanism has a stamp guide, and the stamp guide forms a guide window for guiding the stamp toward the print medium, and the guide window is formed in the transfer direction of the print medium. A relief window can be formed continuously in the direction of swinging the stamp.

    The restraining mechanism can include a stopper pin that rotates as the cam rotates, and a stopper plate that is provided so as to abut against the stopper pin.

    The impact mitigation mechanism may include a friction roller that abuts on a cam roller that synchronizes with the rotation of the cam.

    The stamp guide mechanism includes a stamp holder that holds the stamp, and the stamp holder can swing in the transport direction of the print medium with respect to the stamp driving mechanism.

    The stamp guide mechanism may include a stamp holder that holds the stamp, and the stamp driving mechanism may include a stamp arm that can drive the stamp holder toward the print medium.

    The stamp guide mechanism includes a stamp holder that holds the stamp, the stamp driving mechanism includes a stamp arm that can drive the stamp holder toward the print medium, and the cam includes the biasing mechanism. The stamp holder can be driven toward the print medium by driving the stamp arm against the urging force caused by.

    The stamp guide mechanism includes a stamp guide and a stamp holder that holds the stamp. The stamp holder includes a swing shaft, a swing guide shaft positioned on the stamp side from the swing shaft, The stamp guide can include the swing shaft and a guide window capable of guiding the swing guide shaft.

    The cam mechanism may include a DC motor, an intermediate gear that transmits the rotation of the DC motor to the cam, and a stamp position detection sensor that detects an initial rotation position of the cam.

    The cam mechanism may include a stamp frame that rotatably supports a cam shaft of the cam and a friction roller shaft of a friction roller that contacts a cam roller that rotates in synchronization with the cam in the stopping mechanism. .

    The biasing mechanism may include a spring that constantly biases the stamp toward its top dead center along the stamp guide mechanism.

    The stamp driving mechanism may have a stamp arm formed with a driving pressing surface that receives the driving force of the cam.

    The urging mechanism has a spring that constantly urges the stamp toward its top dead center along the stamp guide mechanism, and the stamp driving mechanism has a stamp formed with a driving pressing surface that receives the driving force of the cam. The stamp guide mechanism may have a stamp guide, and the spring may be provided between the stamp arm and the stamp guide.

    In the transfer printing medium stamp apparatus and the transfer printing medium stamp method according to the present invention, the stamp is driven in the stamping direction by a cam that is rotatable in the forward and reverse directions, and the cam is forced to rotate in the forward and reverse directions. Stopping and mitigating the impact caused by this restraint, the stamping speed is increased according to the transfer speed of the print medium, the stamping of high-speed continuous hitting is performed while avoiding misalignment or blurring due to the stamp, and the drive motor It is possible to reduce the load and shock to each part of the apparatus.

    In particular, according to the transfer printing medium stamp device of the first invention, a cam mechanism having a cam mounted rotatably in the forward and reverse directions, an urging mechanism for constantly urging the stamp in a direction away from the printing medium, A stamp drive mechanism capable of driving the stamp in the direction of the print medium by any rotation of the cam in the forward or reverse direction against the urging force of the bias mechanism, and the stamp driven by the stamp drive mechanism is guided toward the print medium. Since the stamp guide mechanism, the stop mechanism for stopping the rotation of the cam in the forward / reverse direction of the cam mechanism, and the impact relaxation mechanism for reducing the impact caused by the stop of the cam rotation by the stop mechanism are provided. A stamp can be appropriately and stably applied to a printing medium conveyed at high speed.

In particular, according to the transfer printing medium stamp method of the second invention, the cam is driven in the direction of the print medium and the stamp is printed by rotating the cam in either the forward or reverse direction against the biasing force of the biasing mechanism. Since the guide is directed toward the medium to stop both rotations of the cam in the forward and reverse directions in the cam mechanism and the impact associated with the stop of the rotation of the cam is reduced, a stamp is applied to the print medium transferred at high speed. Can be performed appropriately and stably.

It is a schematic plan view of the barcode verification machine 1 equipped with the transfer printing medium stamp apparatus 5 by the Example of this invention. FIG. 2 is a perspective view of the transfer print medium stamp device 5. FIG. 3 is an exploded perspective view of the transfer print medium stamp device 5. FIG. 3 is an enlarged side view of the stamp guide mechanism 11 and the stamp drive mechanism 12. FIG. 3 is a longitudinal sectional view of the stamp guide mechanism 11 and the stamp drive mechanism 12. 2 is a side view of the restraining mechanism 14 and the impact relaxation mechanism 15. FIG. 7 is a view taken along line VII in FIG. 6. FIG. 6 is a timing chart for driving the transport printing medium stamp device 5 in the same manner.

    In the present invention, the stamp is driven in the stamping direction by a cam that can be rotated in the forward and reverse directions, and the rotation of the cam in both the forward and reverse directions is forcibly stopped and the impact caused by the restraint is reduced. Therefore, a transfer printing medium stamp apparatus and a transfer printing medium stamp method capable of increasing the stamping speed in accordance with the transfer speed of the printing medium and performing high-speed and stable stamping by avoiding misalignment and blurring due to the stamp have been realized. .

Next, a transport printing medium stamp device 5 and a transport printing medium stamp method according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic plan view of a bar code verification machine 1 equipped with a transfer printing medium stamp device 5, and the bar code verification machine 1 includes a machine frame 2, a transfer path 3 formed on the machine frame 2, It has a bar code reader 4 provided on the transfer path 3 and a transfer printing medium stamp device 5 according to the present invention.

A bar code label 6 (printing medium) can be transferred at a predetermined transfer speed on the transfer path 3, and a bar code 7 is printed on the bar code label 6 by a printing device (not shown). The reader 4 reads the barcode 7 and determines or verifies the suitability of the barcode 7.
Based on this verification, the transport printing medium stamp device 5 performs a stamp 8 such as “impossible” on the barcode label 6 that cannot be used.

    2 is a perspective view of the transfer print medium stamp device 5, FIG. 3 is an exploded perspective view of the transfer print medium stamp device 5, and the transfer print medium stamp device 5 includes an apparatus main body 9, a cam mechanism 10, a stamp guide mechanism 11, The stamp driving mechanism 12, the biasing mechanism 13, the restraining mechanism 14, and the impact relaxation mechanism 15 are provided.

The cam mechanism 10 includes a DC motor 16 (drive motor), an intermediate gear 17 connected to the DC motor 16, a cam shaft 18 and a cam 19, a stamp position detection plate 20 fixed to the cam shaft 18, and a stamp position detection plate. A stamp position detection sensor 22 that optically detects 20 slits 21 to detect an initial rotation position of a cam 18 (a stamp 28 described later), and a stamp frame 23.
The intermediate gear 17 transmits the rotation of the DC motor 16 to the cam 19 so that the cam 19 can be rotated in the forward and reverse directions (clockwise and counterclockwise).

    The stamp frame 23 has a configuration in which a lower portion thereof and one side surface portion in which the cam 19 is incorporated are opened, and rotatably supports the cam shaft 18 of the cam 19 and a friction roller shaft 24 in the stop mechanism 14 described later. In addition, it can be moved along the friction roller shaft 24 in the axial direction.

4 is an enlarged side view of the stamp guide mechanism 11 and the stamp drive mechanism 12, and FIG. 5 is a longitudinal sectional view of the same.
The stamp guide mechanism 11 includes a stamp guide 26 that is integrally attached to the stamp frame 23 from below by a mounting screw 25 (FIG. 3), and a vertical direction within the stamp guide 26 (in a direction toward and away from the barcode label 6). And a drivable stamp holder 27.

The stamp guide 26 has a configuration in which an upper portion, a lower portion, and one side surface thereof are opened, and a stamp holder 27 holds a stamp 28 at a lower portion thereof. The stamp 28 is impregnated with a necessary amount of ink.
In the stamp guide 26, guide windows 29 for guiding the stamp holder 27 (stamp 28) toward the bar code label 6 are formed on the left and right wall surfaces thereof. A relief window 30 is continuously formed in a direction in which the stamp 28 is swung or swung.

The stamp holder 27 is provided with a pair of left and right upper swing shafts 31 and a lower swing guide shaft 32 positioned on the stamp 28 side of the swing shaft 31 on the side surface thereof. The shaft 31 and the swing guide shaft 32 move through the guide window 29 and the escape window 30.
The escape window 30 has a circular arc portion 30A in the swinging direction from the lowermost part of the guide window 29, and a return straight line portion 30B connected so as to return from the upper end of the circular arc portion 30A to the guide window 29. Yes.
Thus, the stamp holder 27 can swing the bar code label 6 in the transport direction of the bar code label 6 with respect to the stamp driving mechanism 12, and the stamp guide mechanism 11 supports the stamp 28 driven by the stamp driving mechanism 12 described below. Guide toward the code label 6.

That is, the stamp driving mechanism 12 has a stamp arm 33 that can drive the stamp holder 27 toward the barcode label 6.
The stamp arm 33 has a configuration in which an upper portion and a lower portion thereof are further opened on the stamp holder 27 side, and at one end portion on the opposite side to the stamp holder 27, a driving pressing surface that receives the driving force of the cam 19 is provided. A drive pressing plate 34 having 34A is formed to project toward the cam mechanism 10 side.
Further, the stamp arm 33 is formed with a pair of upper and lower drive pieces 35 on the left and right side portions thereof, and a drive notch 36 is formed between the drive pieces 35.
The drive notch 36 is engaged with the swing shaft 31 of the stamp holder 27 so that the stamp holder 27 can reciprocate, and the lower portion of the lower end edge of the drive piece 35 is the swing guide shaft of the stamp holder 27. 32 swings in the direction of the escape window 30 (see the phantom lines of the stamp holder 27 and the stamp 28 in FIG. 5).

In the stamp arm 33, a vertical movement window 37 is formed on a side wall portion standing up from the drive pressing plate 34, and a spring mounting pin 38 is formed to project from an inner wall surface thereof.
A vertical movement pin 39 that guides the vertical movement of the stamp arm 33 as it is driven by the cam 19 is inserted into the vertical movement window 37 so as to be screwed and fixed to the outer wall surface of the stamp guide 26 of the stamp guide mechanism 11 and attached to a spring. A lower end portion of a coil spring 40 of the biasing mechanism 13 described below is attached to the pin 38.

That is, the urging mechanism 13 constantly urges the stamp 28 in a direction away from the barcode label 6, and always urges the stamp 28 to its top dead center along the stamp guide 26 in the stamp guide mechanism 11. A coil spring 40 is provided.
The coil spring 40 is provided between the stamp arm 33 and the spring mounting piece 41 of the stamp guide 26 so that the stamp arm 33 reciprocates in the direction of the bar code label 6 with respect to the stamp guide 26.
Specifically, the stamp 28 is in its initial standby state by the urging force of the coil spring 40, and the stamp arm 33 is also set at its top dead center. It faces upward on the opposite side to 34.

    Thus, the cam 19 rotates alternately in either the forward or reverse direction against the urging force of the coil spring 40 in the urging mechanism 13, thereby driving the stamp arm 33 of the stamp driving mechanism 12. The holder 27 and the stamp 28 can be driven in the direction of the bar code label 6.

6 is a side view of the restraining mechanism 14 and the impact relaxation mechanism 15, and FIG. 7 is a view taken along the line VII in FIG.
The stopping mechanism 14 is for stopping both the forward and reverse rotations of the cam 19 in the cam mechanism 10 and is fixed to the cam shaft 18 so as to rotate in synchronization with the cam 19 as the cam 19 rotates. The cam roller 42, the stopper pin 43 protruding and fixed on one surface of the cam roller 42, and the stopper plate 44 attached to the apparatus main body 9 so as to face and abut the stopper pin 43.
The stopper plate 44 can stop the stopper pin 43 that rotates in either direction along the forward and reverse directions of the cam 19 on the left and right side surfaces thereof.

The impact mitigating mechanism 15 mitigates an impact caused by the stop of the rotation of the cam 19 by the restraining mechanism 14, and abuts the cam roller 42 synchronized with the rotation of the cam 19 with a predetermined pressing force, for example, a friction roller 45 made of urethane material or the like. Have
The friction roller shaft 24 also functions as a stamp moving shaft. The friction roller shaft 24 includes the entire stamp frame 23 including the cam 19 in the transfer printing medium stamp device 5, the stamp guide mechanism 11, the stamp driving mechanism 12, and the biasing mechanism 13. The stamp 28 is slidable with respect to the apparatus main body 9 so that the position of the stamp 28 in the width direction of the bar code label 6 can be adjusted. A stamp moving handle 46 is fixed to the upper portion of the stamp frame 23 by a mounting screw 47. .

The operation of the transport printing medium stamp apparatus 5 having such a configuration will be described.
FIG. 8 is a timing chart for driving the transport printing medium stamp device 5.
First, if the barcode reader 4 of the barcode verifier 1 (FIG. 1) has a problem such as the barcode 7 of the barcode label 6 being unreadable, a stamp signal is output from the barcode reader 4 and the DC is read. A pulse of a voltage of 24 volts is applied to the motor 16 for 30 msec, for example, and the rotational speed of the DC motor 16 gradually accelerates. After 30 msec, the pulse increases to about 5500 rpm.
The stamp position detection sensor 22 detects the home position (standby position at the top dead center) of the cam 19 or the stamp 28 via the stamp position detection plate 20. If there is no position detection signal, the cam 19 or the stamp 28 is not in its normal standby position, and an error signal (not shown) is output because there is some problem.

The rotational drive of the DC motor 16 is transmitted to the cam 19 via the intermediate gear 17 and the cam shaft 18, and the urging force of the coil spring 40 in the urging mechanism 13 is caused by the cam 19 rotating in either the forward or reverse direction. Against this, the drive pressing plate 34 of the stamp arm 33 is moved downward in FIGS. 4 and 5.
As the stamp arm 33 moves downward, the drive piece 35 drives the swing shaft 31 of the stamp holder 27 downward along the guide window 29, and the stamp 28 located at the lower end of the stamp holder 27 moves to the bar. A stamp 8 is stamped on the barcode 7 of the code label 6.

    That is, when the cam 19 reaches its bottom dead center, the stamp 28 is stamped against the paper surface of the bar code label 6. The position of the stamp 28 is the bottom dead center at a position lowered by about 0.3 mm with respect to the paper surface of the bar code label 6, and a sufficient stamp 8 can be made on the bar code label 6 (bar code 7). Pressure can be obtained.

    In particular, as shown by the phantom line in FIG. 5, the stamp 28 is in contact with the bar code label 6 at the time of the stamping, so that the bar code label 6 transferred on the transfer path 3 at a predetermined transfer speed is also applied. The stamp holder 27 of the stamp 28 is set in such a manner that the swing guide shaft 32 escapes to the arc portion 30A of the escape window 30 following the guide window 29 and the guide window 29 with the swing shaft 31 as an axial point. Since the code label 6 is swung in the transfer direction so as to synchronize the transfer speed and the stamping speed, it is possible to avoid deviation or fading due to the stamp 28 on the bar code label 6.

If the stopping mechanism 14 and the impact mitigating mechanism 15 are not provided, even if the driving of the DC motor 16 itself is stopped when the pulse voltage is applied to the DC motor 16 for 30 msec, the rotor in the DC motor 16 is stopped. Is rotated by inertia, and the power is transmitted to the stamp drive mechanism 12 via the cam mechanism 10 to cause a plurality of times of stamping two or more times.
Therefore, in the transfer printing medium stamp device 5 according to the present invention, the cam shaft 18 as described above is provided with the restraining mechanism 14 and the impact mitigation mechanism 15, so that the cam 19 rotates in either the forward or reverse direction. It can be stopped by only one rotation.
That is, as the cam 19 rotates, the cam roller 42 rotates via the cam shaft 18, and the stopper pin 43 is fixed to the cam roller 42, and the stopper pin 43 contacts the stopper plate 44 in the rotation direction. Collision and the rotation can be forcibly stopped. Of course, the rotation in the opposite direction based on the next stamp signal is similarly stopped by one rotation.
Thus, the stamp 28 is driven in the direction of the barcode label 6 by any rotation of the cam 19 in the forward and reverse directions, the stamp 28 is guided toward the barcode label 6 to perform the stamp 8, and the stop mechanism 14 Any rotation of the cam 19 in the forward and reverse directions in the cam mechanism 10 can be forcibly stopped.

    Further, as the rotation of the cam 19 stops, the friction roller 45 in the impact relaxation mechanism 15 contacts the cam roller 42 while being rubbed. Therefore, the shock due to the sudden rotation stop of the cam 19 is reduced, and the DC motor The restraining shock to 16 can be reduced.

After stamping by the stamp 28, when the cam 19 further rotates from the bottom dead center toward the top dead center, the swing guide shaft 32 swings the stamp 28 (stamp holder 27) by the biasing force of the coil spring 40. The return straight portion 30B of the escape window 30 is further pulled upward along the guide window 29 so as to return to the original position around the shaft 31.
When the cam 19 further rotates, both the swing shaft 31 and the swing guide shaft 32 of the stamp holder 27 return to the vertical state in the guide window 29 and return to its top dead center.
When the stamp 28 and the cam 19 return to the top dead center, the stamp position detection sensor 22 detects the initial state and waits for the next stamp instruction.

Thus, the stamp 28 is moved up and down by the cam 19 and the coil spring 40, and after the stamp 8 necessary for the barcode label 6 is performed, the stamp 28 can be swung as the barcode label 6 is transferred. Furthermore, a stop mechanism 14 for forcibly stopping the rotation of the cam 19 is provided, and the stop shock is absorbed by the shock relaxation mechanism 15 to reduce the load on the DC motor 16 from the stop shock, thereby realizing a high-speed and stable stamp. can do.

1 Bar code verifier (Fig. 1)
2 Machine frame 3 Transfer path 4 Bar code reader 5 Transfer printing medium stamp device (Example, FIG. 2, FIG. 3)
6 Barcode label (printing medium)
7 Bar Code 8 Stamp 9 Device Main Body 10 Cam Mechanism 11 Stamp Guide Mechanism 12 Stamp Drive Mechanism 13 Energizing Mechanism 14 Stopping Mechanism 15 Impact Mitigation Mechanism 16 DC Motor 17 Intermediate Gear 18 Cam Shaft 19 Cam 20 Stamp Position Detection Plate 21 Slit 22 Stamp Position detection sensor 23 Stamp frame 24 of cam mechanism 10 Friction roller shaft 25 Mounting screw 26 Stamp guide 27 of stamp guide mechanism 11 Stamp holder 28 Stamp 29 Guide window 30 Relief window 30A Arc part 30B of escape window 30 Return straight line of escape window 30 Numeral 31 oscillating shaft 32 oscillating guide shaft 33 stamp arm 34 of stamp driving mechanism 12 driving pressing plate 34A driving pressing surface 35 of driving pressing plate 34 driving piece 36 driving notch 37 vertical movement window 38 spring mounting pin 39 vertical Friction roller 46 stamps move handle 47 mounting screw of the stopper plate 45 shock absorbing mechanism 15 of the coil spring 41 spring mounting piece 42 cam roller 43 stopper pin 44 stop mechanism 14 of the pin 40 urging mechanism 13

Claims (14)

A transfer printing medium stamp apparatus having a stamp for imprinting on a printing medium transferred on a transfer path,
A cam mechanism having a cam rotatable in forward and reverse directions;
A biasing mechanism that constantly biases the stamp in a direction away from the print medium;
A stamp driving mechanism capable of driving the stamp in the print medium direction by any rotation of the cam in the forward and reverse directions against the urging force of the urging mechanism;
A stamp guide mechanism for guiding the stamp driven by the stamp driving mechanism toward the print medium;
A stopping mechanism for stopping both rotations of the cam in the forward and reverse directions in the cam mechanism;
An impact mitigation mechanism for mitigating an impact associated with the stop of rotation of the cam by the restraining mechanism;
A transfer printing medium stamping apparatus characterized by comprising: The stamp guide mechanism has a stamp guide,
The stamp guide is formed with a guide window for guiding the stamp toward the print medium,
2. The transfer printing medium stamp apparatus according to claim 1, wherein the guide window has a relief window continuously formed in a direction in which the stamp is swung in the transfer direction of the print medium. The transport printing medium stamp device according to claim 1, wherein the stopping mechanism includes a stopper pin that rotates as the cam rotates, and a stopper plate that is provided so as to abut against the stopper pin. . The transport printing medium stamp device according to claim 1, wherein the impact relaxation mechanism includes a friction roller that abuts on a cam roller synchronized with the rotation of the cam. The stamp guide mechanism has a stamp holder holding the stamp,
5. The transfer print medium stamp apparatus according to claim 1, wherein the stamp holder is swingable in the transfer direction of the print medium with respect to the stamp drive mechanism. The stamp guide mechanism has a stamp holder holding the stamp,
6. The transfer printing medium stamp apparatus according to claim 1, wherein the stamp driving mechanism has a stamp arm capable of driving the stamp holder toward the printing medium. The stamp guide mechanism has a stamp holder holding the stamp,
The stamp drive mechanism has a stamp arm that can drive the stamp holder toward the print medium,
7. The cam according to claim 1, wherein the cam is driven toward the print medium by driving the stamp arm against an urging force of the urging mechanism. Transfer printing media stamp device. The stamp guide mechanism has a stamp guide and a stamp holder holding the stamp,
The stamp holder has a swing shaft and a swing guide shaft located on the stamp side from the swing shaft,
8. The transport printing medium stamp apparatus according to claim 1, wherein the stamp guide includes a swinging shaft and a guide window capable of guiding the swinging guide shaft. 2. The cam mechanism includes a DC motor, an intermediate gear that transmits the rotation of the DC motor to the cam, and a stamp position detection sensor that detects an initial rotation position of the cam. Thru | or 8, the transfer printing medium stamp apparatus in any one of. The cam mechanism includes a stamp frame that rotatably supports a cam shaft of the cam and a friction roller shaft of a friction roller that contacts a cam roller that rotates in synchronization with the cam in the stopping mechanism. A transfer print medium stamp device according to any one of claims 1 to 9. 11. The transfer printing medium stamp apparatus according to claim 1, wherein the biasing mechanism includes a spring that constantly biases the stamp toward its top dead center along the stamp guide mechanism. 12. The transport printing medium stamp device according to claim 1, wherein the stamp driving mechanism includes a stamp arm formed with a driving pressing surface that receives the driving force of the cam. The biasing mechanism has a spring that constantly biases the stamp toward its top dead center along the stamp guide mechanism,
The stamp driving mechanism has a stamp arm formed with a driving pressing surface that receives the driving force of the cam,
The stamp guide mechanism has a stamp guide,
13. The transfer printing medium stamp device according to claim 1, wherein the spring is provided between the stamp arm and the stamp guide. A transfer printing medium stamp method for stamping a printing medium transferred on a transfer path,
A cam mechanism having a cam rotatable in forward and reverse directions;
An urging mechanism that constantly urges the stamp in a direction away from the print medium; and
Drive the stamp in the direction of the print medium by rotating the cam in the forward or reverse direction against the biasing force of the biasing mechanism, and guide the stamp toward the print medium,
While stopping any rotation of the cam in the forward / reverse direction in the cam mechanism,
A transfer printing medium stamping method characterized in that an impact caused by stopping the rotation of the cam is reduced.

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