JP2003341882A - Plate material printing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plate material printing apparatus for printing to plate materials such as wood pieces different in width and thickness easily and inexpensively. <P>SOLUTION: This plate material printing apparatus includes a plate material transfer cradle 1 holding a plate material W to be transferred to a printable position, and a printer 2 for printing to the plate material W transferred from the plate material transfer cradle 1 while being transferred by a double feed mechanism 21. The plate material transfer cradle 1 of the plate material printing apparatus is provided with a plate material width adjusting mechanism 14 for energizing the plate material W to one side corresponding to the plate material width W and a plate thickness adjusting mechanism 18 for floating or sinking the plate material W corresponding to the thickness of the plate material W. The respective plate materials W different in width are energized toward one direction by restoring force of the plate material width adjusting mechanism 14 to be put to one side, the respective plate materials different in thickness are floated and sunk by restoring force of the plate material thickness adjusting mechanism to automatically determine the position suitable for printing, whereby printing can be performed to the surface of the plate material inexpensively only by operating a personal computer. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material printing apparatus capable of printing by adapting to several kinds of plate materials having different widths and thicknesses.

[0002]

2. Description of the Related Art Conventionally, printers such as ink jet printers and laser printers have been used for printing. However, all these printers print on ultra-thin paper copy paper or resin film. It is something to do.

By the way, it is necessary to draw letters and designs with ink or the like on a wooden board for writing items written by food business operators and a board for writing names such as names used in temples. In this case,
Conventionally, it is usual that all are handwritten using a brush or the like.

[0004]

In the plate material for writing the product description and the plate material for writing the name of caution, etc., since the size, length, width and thickness of the plate material are different, it is necessary to rely on manual work conventionally. Printing with an ordinary printer was impossible.

However, in the case of manual work as described above, the processing speed and the processing amount are different due to individual differences, and are limited by each processing person.

[0006] For example, in the case of processing such as product writing, since it is a relatively small plate material, there is a problem in accuracy of preparation processing, and there arises a labor cost for processing and a problem in selecting a processor.

[0007] In addition, in the process of creating command names and the like, there is a problem of processing speed and processing amount because the processing is concentrated all at once, such as the Bon Festival, and the labor cost and processing cost The problem of choice exists as well.

Further, in the case where both the plate material for writing the product description and the plate material for writing the command name etc. are subjected to the respective intended preparation processing, in addition to the above problems, due to the difference in weight, size and thickness, There is also a problem that the worker is confused in processing.

The present invention has been made in view of the above-mentioned various problems, and is adapted to several kinds of plate materials having different widths and thicknesses and mechanically printed, thereby making it easy and inexpensive. It is an object of the present invention to provide a plate material printing apparatus capable of printing.

[0010]

That is, a plate material printing apparatus according to the present invention is a plate material transfer pedestal capable of holding a plate material in a printing position so as to be transferable, and a plate material transferred from the plate material transfer pedestal. A plate material printing apparatus provided with a printer for making a plate material width adjusting mechanism for adapting the plate material width to a plate material transfer pedestal of the plate material printing device and urging the plate material to one side. To do.

Further, in the plate material printing apparatus of the present invention, the plate material width adjusting mechanism is provided so as to be installed between the restriction guide and the plate material adjusting guide, which is erected at an end portion of the base on the plate material adjusting guide side. The plate material adjusting guide is configured to be biased in the plate material direction, and the plate material adjusting guide biased by the means is used to bias the plate material in one direction.

Further, the plate material printing apparatus of the present invention is provided with a plate material transfer pedestal capable of holding the plate material movably at the printing position, and a printer for printing the plate material transferred from the plate material transfer pedestal. A plate material printing apparatus is characterized in that a plate material transfer pedestal of the plate material printing apparatus is provided with a plate material thickness adjusting mechanism for adjusting the plate material thickness to float or sink the plate material.

Further, in the plate material printing apparatus of the present invention, the plate material thickness adjusting mechanism includes a plate material holding member arranged in an appropriate number on the lower surface of the base, and means for urging each plate material holding member upward. It is characterized in that the plate member is floated and set by the restoring force of each plate member holding member urged by the means.

The plate material printing apparatus of the present invention, having the above-mentioned configuration, has the following operation. That is, in the present invention, since the plate material transfer pedestal of the plate material printing apparatus is provided with the plate material width adjusting mechanism that urges the plate material to one side in accordance with the plate material width, plate materials having different widths can be adjusted. With the restoring force of the mechanism, it can be urged in one direction and can be printed with the bears that are biased to one side, and the printing position by the printer can be easily determined.

Further, according to the present invention, since the plate material transfer pedestal of the plate material printing apparatus is provided with the plate material thickness adjusting mechanism for floating and sinking the plate material in accordance with the plate material thickness, the plate material thickness adjustment is performed for each plate material having a different thickness. The mechanism allows the printer to float up and down and urge it to a position suitable for printing to print each, and the printing position by the printer can be easily determined.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Next, the plate material printing apparatus of the present invention will be described.
This will be described in detail based on an embodiment shown in the drawings.
1 and 2 are perspective views showing an embodiment of the plate material printing apparatus of the present invention described in claims 1 and 2, and FIG.
5 to FIG. 5 are perspective views showing an embodiment of the plate material printing apparatus of the present invention described in claims 3 and 4, and FIGS. 6 to 8 show an embodiment of the plate material printing apparatus of the present invention. FIGS. 9 and 10 are explanatory views showing an embodiment of a plate material thickness adjusting mechanism in the plate material printing apparatus of the present invention,
FIG. 11 is an explanatory view showing an embodiment of a printing state on a plate material by the plate material printing apparatus of the present invention.

In the embodiments shown in FIGS. 1, 3 and 5, the plate material printing apparatus of the present invention is provided with a plate material transfer pedestal 1 capable of holding the plate material W in a printing position so that the plate material W can be transferred to the printing position. The printer 2 provided with the double feed mechanism 21 as shown in FIG. 6 for transporting the plate material W transported from the table 1 in the transport direction at a printing speed is illustrated.

In the embodiment shown in FIGS. 2 and 5, the plate material printing apparatus of the present invention is provided with a plate material transfer pedestal 1 capable of holding the plate material W in a printing position in a transferable manner, and from the plate material transfer pedestal 1. A printer 2 provided with a double feed mechanism 21 as shown in FIG. 6 for transferring the plate material W to be transferred in a feed direction at a printing speed, and a delivery for holding the plate material W printed by the printer 2 in the receiving direction. An example in which the board support 3 is provided is illustrated.

In the embodiment shown in FIG. 6, the double feed mechanism 21 of the plate material printing apparatus of the present invention moves the plate material W to the printing position.
An example is shown in which the feeding roller 22 for moving the printing roller and the sending roller 23 for moving the printing roller from the printing position to the outside are provided, and both rollers 22, 23 are synchronously rotated in the same direction by one driving source.

The plate material W exemplified here is a wooden plate for displaying items such as dishes and a resin film, as well as a wooden plate on which a caution is written, and it is considered that printing is most difficult with the embodiment bear of the present invention. The case of a wooden board that has been subjected to surface finishing is shown as an example.

Thus, the plate material printing apparatus according to the first aspect of the present invention is, as shown in the embodiments of FIGS. 1 and 2, a plate material transfer pedestal capable of holding the plate material W in a printing position so as to be transferable. 1. A plate material printing apparatus provided with a printer 1 for printing a plate material W transferred from the plate material transfer cradle 1 by a double feed mechanism 21. The plate material transfer cradle of the plate material printer 1 is provided with a plate material width adjustment mechanism 14 adapted to the width of the plate material W and biasing the plate material W to one side.

That is, the plate material transfer pedestal 1 is capable of holding the plate material W in the printing position so that it can be transferred. In the embodiment of FIGS. 1 and 2, the plate material transfer pedestal 1 is A plate material fixing guide 12 and a plate material adjusting guide 13 having a plate material width adjusting mechanism 14 are provided at the widthwise ends of a base 11 having a constant width, and a recessed space into which a plate material W can be fitted between these guides 12 and 13. An example in which 15 is formed is illustrated.

Then, the extreme end side 17 of the base 1 of the above-described plate material transfer cradle 1 is connected to the opening base end portion 26 of the printer 2, and the base end side 16 of the base 11 is connected. When the plate material W is inserted into the recessed space 15 from above, the plate material width adjusting mechanism 14 transfers the plate material W in the printer 2 direction while urging the plate material width adjusting mechanism 14 so that the restoring force of the plate material W is biased in one direction. I am able to do it.

In the plate material printing apparatus according to the second aspect of the present invention, the plate material width adjusting mechanism 14 is provided with a regulating guide 141 provided upright at an end of the base 1 on the plate material adjusting guide 13 side, and the regulating guide 141. And a means for urging the plate material adjusting guide 13 in the width direction of the plate material W, which is interposed between the plate material adjusting guide 13 and the plate material adjusting guide 13. By adopting this configuration, the plate material W is urged by the urging means. With the plate material adjustment guide 13, it is possible to shift to one side in the width direction.

The plate material width adjusting mechanism 14 is adapted to hold the plate material W in a transferable manner by adapting to the width of the plate material W. In the embodiment shown in FIGS. 1 and 2,
A regulation guide 141 erected at an end of the base 11 on the side of the plate material adjustment guide 13 is interposed between the regulation guide 141 and the plate material adjustment guide 13, and the plate material adjustment guide 13 is moved in the width direction by its restoring force. An example is shown which is constituted by the width-developing member 142 (biasing means) for biasing which is biased (the drawing shows an example in which three members are provided).

Further, the plate material width adjusting mechanism 14 is not limited to the one shown in the figure, and may be any device as long as it can move and adjust the plate material adjusting guide 13 in the width direction, for example, a manual type or an electric type. May be used, and the foaming member 14
Instead of 2, a bellows or a magnetic force may be used.

Further, according to the plate material printing apparatus of the third aspect of the present invention, as shown in the embodiment of FIGS. 3 to 5, the plate material transfer pedestal 1 capable of holding the plate material W in the printing position so as to be transferable. A plate material printing apparatus provided with a printer 2 for printing a plate material W transferred from the plate material transfer cradle 1 by a double feed mechanism 21. The plate material transfer cradle 1 of the plate material printing apparatus is provided. A plate material thickness adjusting mechanism 18 for adjusting the plate material W thickness to float and sink the plate material W is provided.

The plate material transfer pedestal 1 shown in the embodiment of FIGS. 3 to 5 can also hold the plate material W in the printing position so that the plate material W can be transferred to the printing position.
The plate material fixing guides 12 and 12 are provided at the widthwise ends of the base 11 having a constant width and provided with the plate material thickness adjusting mechanism 18 on the lower surface.
Is provided, and the recessed space 15 into which the plate material W can be fitted is formed between the guides 12 and 12.

Then, the extreme end side 17 of the base 11 of the above-described plate material transfer pedestal 1 is connected to the opening base end portion 26 of the printer 2, and the base end side 16 of the base 11 is connected. The plate material W is inserted into the recessed space 15 so that the plate material thickness adjusting mechanism 18 can transfer the plate material W in the direction of the printer 2 while adjusting the float / sink so as to adjust to the thickness of the plate material W.

In the plate material printing apparatus of the present invention as defined in claim 4, the plate material thickness adjusting mechanism 18 is a plate material holding member 181 arranged in an appropriate number on the lower surface of the base 11, and each plate material holding member 181. And a means for urging the plate member W upward, and by adopting this configuration, each plate member holding member 181 for urging the plate member W by the restoring force of the urging member can adjust the floating / sinking to the printing position.

The plate material thickness adjusting mechanism 18 is adapted to hold the plate material W in a transportable manner in accordance with the thickness of the plate material W. In the embodiment shown in FIGS. A ridge member 182 (biasing means) is provided on the lower surface of the base 11.
And a plate member holding member 1 that is urged upward by the plate member W.
An example is shown in which an appropriate number of 81 (six in the drawing is shown) are arranged, and the plate material holding member 181 can adjust the plate material W up and down to adapt to the thickness of the plate material W. ing.

The plate material thickness adjusting mechanism 18 shown in FIG.
Is provided with a plurality of perforation holes 111 at appropriate places on the lower surface of the base 11, and a receiving member 183 for maintaining a biasing means for holding the plate material W under each of the perforation holes 111 ,. 18
3 is arranged with the fluff member 182, and the fluff member 1
The other end of the plate-like holding member 181 whose one end is pivotally fixed to the end of the hole 111 of the base 11 is locked to the upper part of 82, and the plate-like holding member 181 is constantly urged upward. The plate material W can be held.

Further, the plate material thickness adjusting mechanism 1 shown in FIG.
8 also has a plurality of perforation holes 111 at appropriate places on the lower surface of the base 11, and a coronal receiving member 183 'for maintaining a biasing means for holding the plate material W under each perforation hole 111. The swelling member 182 is arranged on the receiving member 183, the swelling member 182 is engaged with the floating / sinking plate member 184, and the plate-shaped holding member 181 is rotatably pivoted above the floating / sinking plate member. The plate-shaped holding member 181 can hold the plate material W while always biasing it upward.

In the drawings, reference numerals 121 and 131 denote plate material upper surface guides provided on the plate material fixed guide 12 and the plate material adjusting guide 13. By providing the plate material upper surface guides 121 and 131, the upper surface printing position of the plate material W is regulated. When the plate material thickness adjusting mechanism 18 described above is provided, the weight of the plate material W can normally be regulated to some extent, but the plate-shaped holding member 181 of the plate material thickness adjusting mechanism 18 can be controlled. The upward restoring force (biasing force) can be regulated at the upper surface position of the plate material W by the plate material upper surface guide 121 (131), and thereby stable printing can be performed.

Further, as shown in FIG. 11, the plate material transfer cradle 1 is provided with both the plate material width adjusting mechanism 14 and the plate material thickness adjusting mechanism 18 to adjust the plate material W width and the plate material W thickness. It can also be adapted to be held so that it can be transferred.

The plate material thickness adjusting mechanism 18 is not limited to the one shown in the figure, and may be of any type as long as it can adjust the plate material W up and down in accordance with the thickness of the plate material W, for example, in the thickness direction. It may be a manual or electric adjustment for ups and downs adjustment, or may have a control function,
Further, a bellows or a magnetic force may be used instead of the foaming member 182.

The printer 2 is for printing the plate material W transferred from the plate material transfer cradle 1 described above, and here, the printer 2 having a mechanism of a general ink jet printer is exemplified.

The mechanism of this ink jet printer has an ink jetting function, and adopts a conventional mechanism in which the printing head section is controlled to be movable left and right according to the purpose of printing. The description thereof will be omitted.

The printer 2 is provided with a double feed mechanism 21 for moving the plate material W transferred from the plate material transfer pedestal 1 in the feed direction at a printing-enabling speed, and to the printer 2. An opening for transferring the plate material is formed, and a plate material transfer pedestal 1
As described above, the opening base end portion 26 is opened on the extreme end side 17 of the base 11 of the above, and the opening extreme end portion (not shown) is opened on the base side 36 of the sending plate material receiving base 3 described later. Has been done.

The double feed mechanism 21 is for making it possible to transfer the different types of plate materials W to the printing position easily and at a stable printing speed, and the embodiment shown in FIG. As described above, the feeding roller 22 that drives the driving motor (driving source) 25 to move the plate material W to the printing position of the printer 2 and the feeding roller 23 that transfers the plate material W to the outside from the printing position are provided. .

Further, the feeding roller 22 and the feeding roller 23 are provided with a driving motor (driving source) 25 so that the plate material W can be transported at a stable printing speed.
The double drive mechanism 24 interlocked with the above is configured to rotate these in the same direction in synchronization.

In the embodiment shown in FIG. 6, the double drive mechanism 24 is exemplified by one in which the feed roller 22 and the feed roller 23 can be synchronously rotated in the same direction by several kinds of gears. Several kinds of gears are provided which mesh with a drive gear 252 arranged at the end of the drive shaft 251 of the motor 25 to perform a function.

That is, the double drive mechanism 24 has a second driven gear 242 coaxially provided with the first driven gear 241 meshing with the drive gear 252, and the second driven gear 2
42, a feed roller gear 232 and a first intervening gear 243 that mesh with the second intermediary gear 243, a second intermediary gear 244 coaxial with the first intermediary gear 243, and a conversion that meshes with the second intermediary gear 244 to change the rotation direction. An example is shown in which the gear 245 and the feed roller gear 222 that meshes with the conversion gear 245 are included.

Therefore, the delivery roller gear 232 is
It is attached to the end of the rotation shaft 231 of the delivery roller 23, and transmits the rotation (forward rotation direction) of the drive gear 252 of the drive motor 25 to the first driven gear 241 to rotate in the reverse direction (reverse rotation direction). ), And the second driven gear 242 coaxial with this.
The feed roller gear 232 that meshes with the feed roller gear 232 is further rotated in the reverse direction (normal rotation direction), whereby the drive gear 252 (forward rotation direction) of the drive motor 25 and the feed roller 23.
(Forward rotation direction) means rotation in the same direction.

The feed roller gear 222 is attached to the end of the rotary shaft 221 of the feed roller gear 22, and the rotation (normal direction) of the drive gear 252 of the drive motor 25 is first driven. The second driven gear 242 is transmitted to the gear 241 and rotated in the opposite direction (reverse rotation), and is coaxial with the second driven gear 242.
The first intermediary gear 243 that meshes with the first intermediary gear 243 is further rotated in the reverse direction (normal rotation direction), and the conversion gear 245 that meshes with the second intermediary gear 244 coaxial with the first intermediary gear 243.
Rotate in the reverse direction (reverse direction), and the feed roller gear 222 meshing with the conversion gear 245 is further rotated in the reverse direction (normal rotation direction), whereby the drive motor 2
5 drive gear 252 (forward rotation direction) and feed roller 22
(Forward rotation direction) means rotation in the same direction.

Since the double drive mechanism 24 needs to rotate the feed roller 22 and the feed roller 23 in synchronization in the same direction, the number of teeth of each gear of the double drive mechanism 24 is finally determined. After the arithmetic processing, the feeding roller 22 and the feeding roller 23 are set to synchronize at the same speed.

In the embodiment of FIG. 6, the double drive mechanism 24 uses several kinds of gears as an example.
A pulley or a belt may be used as long as the feed roller 22 and the feed roller 23 rotate synchronously in the same direction, and the structure of the mechanism is not limited.

The plate material receiving table 3 for sending is for carrying the plate material W transferred from the plate material transferring table 1 and printed by the printer 2 in the receiving direction, as shown in FIGS. 2 and 5. , As shown in the embodiment of FIG.
The plate material fixing guides 32, 32 are provided at both ends in the width direction of the base 31 having a constant width, and the reinforcing member 34 is provided between the both guides 33, 33 so that the plate material W can be fitted therein.
It is illustrated that the above is formed.

Further, as shown in the figure, the sending plate material receiving base 3 is in a stable state with the base side 36 of the base 31 of the sending plate material receiving base 3 to the extreme end portion (not shown) of the printer 2. As shown in the embodiment of FIG. 11, the plate material W transferred from the plate material transfer pedestal 1 and printed by the printer 2 does not adversely affect the printing operation of the printer 2 and is received. In this direction, it is possible to insert characters from the base side 36 of the base 31 of the sending plate material receiving base 3 into the recessed space 35 and convey them while holding them stably, thereby completing the drawing of characters, patterns, and the like.

7 and 8, a plate material pressing mechanism 4 is provided near the extreme end 17 of the plate material transfer cradle 1 so that the plate material W can be transferred to the printer 2 without shaking. This is an example of a case where the plate material pressing mechanism 4 is provided at the extreme end 1 of the base 11 of the plate material transfer pedestal 1.
7. Holding plate members 41, 41 arranged on both sides of the suburbs, and movable rods 42, 42 whose base ends are pivotally stopped so that the holding plate members 41, 41 are biased by a spring member 43 or the like. It is composed of an appropriate number of Ron ring members 45 which are rotatably attached to the erection rod 44 between the movable members 42, 42, and the plate material W transferred on the plate material transfer pedestal 1 is springed downward. The urging rolling member 45 can be moved toward the printer 2 while pressing it without shaking.

In the figure, reference numeral 46 denotes a drive roller for forcibly moving the plate material W toward the printer 2. The drive roller 46 uses a heavy plate material W or a continuous plate material. It is suitable for transferring W, but it is not always necessary.

It should be noted that the spring-biased erection rods 44 of the plate material pressing mechanism 4 may be one or more arranged according to the purpose, and in the embodiment of FIG. An example is shown in which the erection rod 44 is undulated only on the extreme end 17 side of the base 11, and in the embodiment of FIG. 8, the erection rods 44 of the plate material pressing mechanism 4 are provided at two positions in front and in the rear, respectively. An example is shown in which the erection rods 44, 44 are respectively undulated on the central side.

[0053]

According to the plate material printing apparatus of the present invention, therefore, a plate material transfer pedestal that can be movably held at a printing position and a plate material transferred from the plate material transfer pedestal in a feeding direction at a printing speed. In a plate material printing device that is equipped with a printer equipped with a double feed mechanism for transferring, and if necessary, a plate material pedestal that holds the plate material printed by the printer in the receiving direction, adapting the plate material width to the plate material transfer pedestal Since a plate material width adjustment mechanism that biases the plate material to one side is provided, unlike conventional methods such as handwriting such as brush writing, it is impossible for conventional printers to use heavy objects such as wood with different widths. Each plate material can be automatically moved to the optimum position for printing by only operating a personal computer, and printing can be done easily and stably at low cost.
It is not necessary to secure the processing personnel, and the processing personnel cost can be reduced.

Further, the plate material printing apparatus of the present invention includes a plate material transfer pedestal that can be held in a printing position so as to be transferable,
A printer equipped with a double feed mechanism for transferring the plate material transferred from the plate material transfer pedestal in the feeding direction at a printing-permissible speed, and if necessary, a plate material receiving member for holding the plate material printed by the printer in the receiving direction. In a plate material printing device equipped with a table, a plate material thickness adjustment mechanism that adapts the plate material thickness to urge the plate material to float and sink is provided in the plate material transfer cradle, unlike the conventional manual method such as writing. , It is possible to print easily and stably at low cost by automatically floating each plate material such as wood with different weight and different thickness which was not possible with conventional printers to the optimum position for printing only by operating a personal computer etc. ,
Even in this case, it is not necessary to secure the processing personnel, and the processing personnel cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a plate material printing apparatus of the present invention.

FIG. 2 is a perspective view showing an embodiment of a plate material printing apparatus of the present invention.

FIG. 3 is a perspective view showing an embodiment of a plate material printing apparatus of the present invention.

FIG. 4 is a perspective view showing an embodiment of a plate material printing apparatus of the present invention.

FIG. 5 is a perspective view showing an embodiment of a plate material printing apparatus of the present invention.

FIG. 6 is an explanatory diagram showing an embodiment of a plate material printing apparatus of the present invention.

FIG. 7 is an explanatory diagram showing an embodiment of a plate material printing apparatus of the present invention.

FIG. 8 is an explanatory diagram showing an embodiment of a plate material printing apparatus of the present invention.

FIG. 9 is an explanatory view showing an embodiment of a plate material thickness adjusting mechanism in the plate material printing apparatus of the present invention.

FIG. 10 is an explanatory view showing an embodiment of a plate material thickness adjusting mechanism in the plate material printing apparatus of the present invention.

FIG. 11 is an explanatory diagram showing an embodiment of a printing state on a plate material by the plate material printing apparatus of the present invention.

[Explanation of symbols]

W plate material 1 Plate transfer cradle 13 Plate material adjustment guide 14 Plate width adjustment mechanism 141 Regulation Guide 142 Discharge member (biasing means) 18 Thickness adjustment mechanism 181 Plate material holding member 182 Generating member (biasing means) 2 printer 21 Double feed mechanism 22 Feeding roller 23 Sending roller 3 Plate pedestal for sending

Claims (4)

[Claims] 1. A plate material printing apparatus provided with a plate material transfer pedestal capable of holding a plate material movably at a printing position and a printer for printing the plate material transferred from the plate material transfer pedestal, A plate material printing apparatus comprising a plate material transfer cradle of the plate material printing device, and a plate material width adjusting mechanism for adjusting the plate material width to urge the plate material to one side. 2. The plate material width adjusting mechanism is provided between a regulation guide erected at an end portion of the base on the plate material adjustment guide side, and the plate material adjustment guide is provided between the regulation guide and the plate material adjustment guide in the plate material direction. The plate material printing apparatus according to claim 1, wherein the plate material printing apparatus comprises a biasing unit. 3. A plate material printing apparatus according to the present invention is provided with a plate material transfer pedestal capable of holding a plate material movably at a printing position, and a printer for printing the plate material transferred from the plate material transfer pedestal. A plate material printing apparatus, wherein a plate material transfer pedestal of the plate material printing apparatus is provided with a plate material thickness adjusting mechanism for adjusting the plate material thickness to float or sink the plate material. 4. The plate material thickness adjusting mechanism is composed of a plate material holding member arranged in an appropriate number on the lower surface of the base, and means for urging each plate material holding member upward. The plate material printing apparatus according to claim 3.