JPH06226946A - Stamp device - Google Patents

Abstract

(57) [Summary] [Purpose] A stamp that does not perform plate making operation even if the user carelessly sets the stencil printing master plate to the plate making device, and does not stain or damage the plate making device. Provide a device. [Configuration] If the stencil printing plate 120 is installed,
Whether or not the thermal paper 136 of the mounted stencil printing plate 120 is colored is judged from the output of the reflective optical sensor 39 (S220), and if it is colored, the mounted stencil printing plate 120 is printed. Is displayed on the liquid crystal display 18 that the plate has already been plate-formed and has been inserted twice, for example, "plate-made", to warn the user (S221). In S222, the process returns to S221 and loops until the stencil printing original plate 120 inserted twice is removed. Until the stencil printing plate 120 inserted twice by this process is removed, the stamp plate making apparatus is in a state of not accepting other processes, and of course, does not make a plate making operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamp device.

[0002]

2. Description of the Related Art Conventionally, a heat-sensitive stencil sheet that can be perforated by infrared irradiation or a thermal head has been known. As a typical example thereof, a pressing stencil printing apparatus as shown in FIG. 10 is known. This is a heat-sensitive stencil sheet 300 obtained by adhering a thermoplastic film and a porous support to each other. A frame 302 is provided around the porous support, and the ink is impermeable by the frame 302 and the ink impermeable cover sheet 304. Heat-sensitive stencil original plate 3 formed with concave portions 314 as coating portions
06 is used. This stencil printing machine has a pressing member 308.
And a pedestal 310 arranged to face the pressing member 308.
And a holding member 312 of the heat-sensitive stencil original plate 306 arranged in the peripheral portion of the opposing surface of the pedestal 310 of the pressing member 308.

Then, ink is applied to the concave portion 314 formed by the frame body 302 of the perforated heat-sensitive stencil plate 306, the cover sheet 304 is covered and the holding member 312 holds the pressing member 308, and the pressing member 308 is printed. Printing is performed by moving and pressing the pedestal 310 via the paper 316. However, in printing with this apparatus, it is necessary for the user to directly apply the ink, and there is a problem in that the ink stains hands and clothes, and uneven printing causes light and shade.

Therefore, in order to solve these problems,
The applicant of the present application has previously proposed a stencil printing plate according to the specification and drawings attached to the application of Japanese Utility Model Application No. 4-6505.
This stencil printing plate will be described with reference to FIG. This stencil printing plate 420 is a heat-sensitive stencil sheet 422 obtained by bonding a thermoplastic film and a porous support,
Separator 424 arranged on the side of the porous support of heat-sensitive stencil sheet 422 and non-woven fabric 426 impregnated with ink.
And a film 430 that is an ink impermeable base material,
It is sequentially laminated and configured with a supporting frame 428.

The stencil printing plate 420 is formed with a punch image by heating and melting the thermoplastic film of the heat-sensitive stencil sheet 422 by a stamp plate making apparatus using a thermal head. Next, the stencil printing plate 420 thus prepared is attached to a pressing member 440 (hereinafter referred to as a stamp member) having a grip as shown in FIG. 9 after pulling out the separator 424 in the arrow direction shown in FIG. To be done. The stamp member 440 includes a handle portion 442, a cushion layer 444, and an adhesive layer 446.

By pressing the stamp member 440 against the printing paper 448 with the stencil printing plate 420 attached, the non-woven fabric 426 is compressed and the impregnated ink oozes out from the perforated portion of the printing surface to print. Paper 448
Ink is transferred to.

[0007]

However, the master plate 420 for stencil printing is the nonwoven fabric 42 impregnated with ink.
6 is built in, and there is a risk that the user may accidentally set the stencil printing master plate 420, which has been inadvertently made once when the plate is made by the stamp plate making apparatus, in the stamp plate making apparatus in an attempt to make the plate again. There is. In this case, not only accurate perforation is not performed, but also the thermoplastic film peels off and adheres to the heating element of the thermal head, or the ink impregnated in the nonwoven fabric 426 is blown out from the perforated portion previously made during plate making. There is a risk that the thermal head may get dirty and ink may drip inside the plate making device.

The present invention has been made in order to solve the above-mentioned problems, and does not perform the plate making operation even if the user carelessly sets the stencil printing master plate which has been already made in the plate making apparatus, and the plate making operation is not performed. It is an object of the present invention to provide a stamp device that does not stain or damage the device.

[0009]

In order to achieve this object, a stamping device of the present invention comprises a heat-sensitive stencil sheet capable of thermal perforation, an impregnated body impregnated with ink, and an ink impermeable base material. A stencil printing plate laminated in sequence, and a stencil making device provided with a heat piercing means for piercing the heat-sensitive stencil stencil sheet of the stencil printing master plate, wherein the stencil printing master plate is heat pierced by the stencil making device. After that, a stamping device configured to apply a pressing force from the base material side of the stencil printing plate by a pressing unit to exude the ink impregnated in the impregnated body from the perforated portion and transfer it to a printing medium. A part of the stencil printing plate is provided with a thermosensitive coloring paper, and the plate making device detects a coloring means for coloring the thermosensitive coloring paper at the time of performing a plate making operation, and whether or not the thermosensitive coloring paper is thermosensitive. Detection means and When the heat-sensitive color-developing paper is detected to be sensitive color developing by known means, and control means for controlling so as not to perform plate making operation by the thermal perforation.

[0010]

In the stamping device of the present invention having the above-mentioned structure, the stencil printing plate is thermally perforated by the heat piercing means of the plate making device, and at this time, the coloring means is provided on the stencil printing plate. Color the colored paper. When the master plate for stencil printing that has been made once and the color of the thermosensitive coloring paper has been set in the platemaking device, the detection means detects that the thermosensitive coloring paper is coloring, and the control means performs the platemaking operation based on the detection result. Control not to.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, the stencil printing plate 120 of this embodiment will be described with reference to FIG. The stencil sheet 120 is roughly divided into a heat-sensitive stencil sheet 122 and a separator 1.
24, a non-woven fabric 126 impregnated with ink, and a frame 128 having an opening 127 surrounding the non-woven fabric 126.
And a film 130 which is an ink impermeable base material.

As shown in FIG. 5, the heat-sensitive stencil sheet 122 is composed of a thermoplastic film 90, an adhesive layer 92, and a porous support 94. The thermoplastic film 90 of the present embodiment is a polyethylene terephthalate film (PET film) having a thickness of 2 μ, but other films such as polypropylene and vinylidene chloride-vinyl chloride copolymer may be used. The thickness of the PET film is preferably 1 μm to 4 μm. If it is less than 1 μm, the manufacturing cost is high and the strength is weak, which is not practical. On the other hand, if the thickness is 4 μm or more, a general thermal head having a rating of about 50 mJ / mm ² is too thick to punch. As the porous support 94, for example, a porous thin paper mainly made of natural fibers such as Manila hemp, kozo, mitsumata, synthetic fibers such as polyethylene terephthalate, polyvinyl alcohol, polyacrylonitrile, and semi-synthetic fibers such as rayon is used.

An opening 127 corresponding to the size of the non-woven fabric 126 and a square hole 129 for extracting the separator 14 are formed in the center of the frame 128, and the square hole 12 is further formed.
A heat-sensitive paper 136, which is colored by heat, is attached to the side end of the sheet 9. At the position where the heat-sensitive paper 136 is attached, the heat-sensitive stencil sheet 122 is configured to partially overlap the heat-sensitive paper 136. This is because the thermal head 28, which will be described later, slides while punching from the side of the heat-sensitive stencil sheet 122 at the time of plate making so as to directly contact the upper portion of the heat-sensitive sheet 136 as it is. An adhesive layer 132 for adhering the heat-sensitive stencil sheet 122 is applied to the upper surface of the frame 128 on the four sides. Since the ink impregnated in the non-woven fabric 126 is an oil-based ink, the frame 128
As the material of the vinyl chloride, which is not affected by the oil-based ink,
Polypropylene, polyethylene, polyacetal, polyethylene terephthalate, etc. are used.

The non-woven fabric 126 is impregnated with the oil-based ink in a saturated state, and the impregnated ink oozes out when pressure is applied to the non-woven fabric 126. Non-woven fabric 12
For 6, synthetic fibers such as polyethylene, polypropylene and polyethylene terephthalate are used. Non-woven fabric 1
The thickness of 26 is preferably set to be ½ or more and 3 times or less of the thickness of the frame 128. If the thickness of the non-woven fabric 126 is too thin, the heat-sensitive stencil sheet 122 will become a frame body 128 during plate making.
It will get into the inside of the and will not be in contact with the thermal head, making it impossible to punch. Further, if the thickness of the non-woven fabric 126 is too thick, the non-woven fabric 12 is pressed by the thermal head 28.
6 is compressed and the impregnated ink spills out of the frame 128. In such a state, the stencil printing plate 120 cannot be transported by the frame 128 during plate making. Therefore, variations in the thickness of the non-woven fabric 126 cause unevenness in the transporting and feeding pitch of the stencil printing plate 120, and skew feeding. Then, problems such as transporting occur. At the time of plate making, it is preferable that the nonwoven fabric 126 is compressed by the pressing force of the thermal head 28 so as to have the same thickness as the frame 128.

The separator 124 is a heat-sensitive stencil sheet 12.
2 is disposed between the non-woven fabric 126 and the non-woven fabric 126, and the end portion of the separator 124 is passed through the square hole 129 provided in the frame body 128 and between the frame body 128 and the film 130. Is projected to.

The inside of the hatched portion of the frame 128 in the figure is the non-woven fabric 12.
6 is an area covered by the separator 124. As the separator 124, release paper obtained by subjecting high-quality paper or glassine paper to silicon treatment, or resin film such as polyethylene terephthalate or tetrafluoroethylene (for example, Teflon under the trade name) is used. As the required characteristics, those having poor wettability with the oil-based ink are preferable, and specifically, those having a wetting angle of 45 degrees or more are preferable. When using release paper or the like, it is preferable to apply silicon processing not only to the contact surface with the nonwoven fabric 126 but also to the entire surface. This is because when the wettability is good or the silicon is processed on only one side, the ink spreads to the side of the heat-sensitive stencil sheet 122, and there is a risk that the ink will ooze out from the perforated portion during perforation.

Film 13 which is an ink impermeable substrate
In No. 0, the adhesive layer 134 is applied to the upper surface (hatched portion in FIG. 1) and is bonded to the frame 128 and the nonwoven fabric 126. As the film 130, a resin film made of vinyl chloride, polypropylene, polyethylene, polyethylene terephthalate, or the like that is not affected by the oil-based ink is used.

FIG. 2 is a perspective view of the stamp plate making apparatus 12 of this embodiment. The stamp device 12 includes a keyboard 16 for inputting characters or functions on the upper surface of the cover 14, a liquid crystal display 18 for displaying characters and the like according to the input from the keyboard 16, and an on / off key for instructing power-on or power-off. 20 and a plate making key 22 for instructing plate making. Cover 1
A stamp groove 26 for arranging the stamp member 140 is provided on the upper surface of the rear portion of the stamper 4. Further, an insertion port 24 for inserting the stencil printing plate 120 at the time of plate making is provided on the side surface of the cover 14.

The plate making mechanism of the stamp plate making apparatus 12 will be described with reference to FIG. 3, which is a sectional view taken along the line EE of FIG.

As a plate making mechanism of the stamp plate making apparatus 12, a pair of feed rollers 32 for conveying the stencil printing original plate 120 inserted from the insertion port 24 and the insertion of the stencil printing original plate 120 are confirmed. For transporting the original plate detection switch 36, the thermal head 28, the platen 30 facing the thermal head 28, and the original plate 120 for stencil printing after being punched by the thermal head 28 to below the stamp member 140. Feed roller 3 for
7a and 37b are provided. In addition, the thermal paper 1 attached to the stencil printing plate 120 is provided in the vicinity of the insertion port 24.
A reflection type optical sensor 39 is provided to detect whether or not 36 is colored.

Next, the configuration of the control system of the stamp plate making apparatus 12 will be described with reference to the block diagram shown in FIG.

The keyboard 16 and the detection circuit 68 are connected to an input / output interface 58 of a microcomputer (hereinafter referred to as a microcomputer) 40. Detection circuit 6
A plate type detection switch 36 for detecting the mounting of the stencil plate 120 and a reflection type optical sensor 39 for detecting the presence / absence of color development on the thermal paper 136 are connected to the plate 8. The input / output interface 58 is connected to the CPU 6 via the bus line 78.
6, ROM 44, RAM 50, CG-ROM 62 for thermal perforation of the stencil printing plate 120, CG-ROM 64 for displaying the liquid crystal display 18, output interface 60,
Also, it is connected to the interrupt control unit 42 for inputting the on / off key 20.

The ROM 44 is provided with a program memory 46 storing a program for controlling the overall operation of the stamp plate making apparatus 12 and a dictionary memory 48 used for kana / kanji conversion. RAM50 is the keyboard 1
An input buffer 52 for storing data input from 6;
A thermal perforation buffer 54 for storing data for thermal perforating the stencil printing plate 120, a shift register 56, and other necessary counters and registers are provided.

The CG-ROM 62 for thermal perforation generates a dot pattern based on the code data of the input character, and the CG-ROM 64 for display displays a dot pattern for display to be displayed on the liquid crystal display 18. It occurs.

A head drive circuit 70, a motor drive circuit 72, and a display drive circuit 76 are connected to the output interface 60, and the thermal head 2 is connected to each of them.
8, the conveyance motor 74, and the liquid crystal display 18 are connected. A portion surrounded by a dotted line frame includes an on / off key 20 and a microcomputer 40, and is a power supply backup unit 80 in an area which is always energized and kept active regardless of whether the power supply is on or off. The outside of the power backup unit 80 is an area where power is turned on or off to turn on or off the power in order to suppress power consumption.

Next, the operation during plate making will be described. At the time of plate making, when the stencil printing original plate 120 is inserted into the apparatus through the insertion port 24, the stencil printing original plate 120 is fed by the feed roller pair 32 to a position where the front end of the stencil printing original plate 120 faces the platen 30. , Is stopped by a stopper (not shown) and is in a mounted state. In this state, the holding roller 34 holds the stencil printing plate 120 at a position where it pushes the plate detection switch 36, so that the plate detection switch 36 is turned on. When the plate making key 22 is pressed in this state, the thermal head 28 is pressed against the platen 30 by a mechanism (not shown), and the stencil printing plate 120 is sandwiched between the platen 30 and the platen 30.

After that, the platen 30 is rotated by the carrying motor 74, and the stencil printing plate 120 is carried while the thermal head 28 is pressed against it. When the stencil printing plate 120 is fed to a predetermined position, the thermal head 28 is driven to generate heat based on the plate-making data edited according to the character string input in advance, and the motor is fed by one step. One line is punched each time and the plates are made one after another.

When the perforation of the heat-sensitive stencil sheet 122 is completed, the heat-sensitive sheet 136 attached to the stencil sheet 120 is fed to the position where it hits the thermal head 28. At this position, the thermal paper 136 is placed on the thermal head 2.
It is colored by the heat of 8 and turns black.

When the above operation is completed, the thermal head 2
8 is separated from the stencil printing plate 120, and the stencil printing plate 120 is fed to the position indicated by the dotted line and stopped by the rotation of the feed rollers 37a and 37b. Plate making is completed by the above operation.

The stencil printing plate 120 stopped at this position
Is located directly below the stamp member 140, and when the handle portion 142 of the stamp member 140 is pushed downward in this state, the adhesive layer 146 is attached to the film 130 of the stencil printing plate 120. This completes the attachment of the stencil printing plate 120 to the stamp member 140. Then, as in the conventional case, the non-woven fabric 126 is compressed by pressing the stamp member 140 against the printing paper with the stencil printing plate 120 mounted, and the impregnated ink bleeds from the perforated portion of the printing surface to print. Ink is transferred to the paper.

Next, the control flow of the stamp plate making apparatus 12 of this embodiment will be described with reference to the flow charts shown in FIGS.

First, the initial setting of FIG. 6 (step S101,
Hereinafter, only S101, and the same applies to other steps) is a process starting from the state where the power backup unit 80 is first energized, and sets the initial state around the CPU 66. Until the ON flag is set to 1 in S102, the process does not shift to the next state but is in a standby state, and the device is in a power-off state. When the on / off key 20 is pressed in this state, the on flag is set to 1 by the interrupt process, the peripheral power on process is performed, and the entire apparatus starts up (S).
103). Then, in S104, it is determined whether the on-flag is 0, and if it is 1, the process proceeds to A shown in FIG. When the on / off key 20 is pressed while the power is on, the on flag is set to 0 by the interrupt process, and the determination in S104 results in S
Then, the process proceeds to step 105, where peripheral power-off processing is performed and the power of the apparatus is turned off.

In the flowchart of FIG. 7, the keyboard 16 is first scanned for keys (S201), and if there is an input, it is determined whether the input key is a character (S).
202). If the input key is a character, data input processing is performed (S203), and the input character is displayed on the liquid crystal display 18 (S204).
Return to B in FIG. If the input is not a character, it is determined whether the plate making key 22 has been pressed (S205). If the stencil making key 22 is pressed, it is judged whether the stencil printing plate 120 is mounted on the stamp plate making apparatus 12 (S206). If not, the stencil printing plate 120 is mounted. For example, a message is displayed on the liquid crystal display 18 such as "please mount the original plate" (S215), and the process returns to B in FIG.

If the stencil printing plate 120 is mounted, the thermal paper 13 of the mounted stencil printing plate 120 is used.
It is judged from the output of the reflection type optical sensor 39 whether or not 6 is colored (S220), and if it is colored, the mounted stencil printing plate 120 has already been plate-formed and is inserted twice. A message to that effect is displayed on the liquid crystal display 18, for example, "plate-making completed" to warn the user (S221). In S222, the process returns to S221 and loops until the stencil printing original plate 120 inserted twice is removed. Until the stencil printing plate 120 inserted twice by this process is removed, the stamp plate making apparatus is in a state of not accepting other processes, and of course, does not make a plate making operation.

When the stencil printing plate 120 is removed (S2
22), the warning display is canceled (S223), and the process returns to S104 to accept the next process.

If the thermal paper 136 of the stencil printing plate 120 has not developed color (S220), the plate making operation flag is set to 1 (S207) and the plate making operation is started. First, the number of lines for plate making is set (S208), and the thermal head 2
8 is pressed against the mounted stencil printing plate 120 (S
209). Next, according to the plate-making data corresponding to the number of plate-making lines set, plate-making for one line is performed (S21
0) Send out one line of stencil printing plate. Then, the value of the number of plate making lines is decremented by 1 (S211).

Then, it is judged whether or not the number of plate-making lines becomes 0 (S212), the process returns to S210 until it becomes 0, and the plate-making operation is repeated line by line. When the number of plate-making lines becomes 0, the plate-making operation flag is set to 0 (S213). Then, the process proceeds to S301 shown in FIG.
It is sent out from the position where 0 is currently stopped to the position where the thermal paper 136 is stuck until the thermal head 28 hits.

The solid print flag on the thermal paper 136 is set to 1 (S302). Here, solid printing means thermal paper 13
It means that 6 is discolored black by the heat of the thermal head 28. Then, the number of lines for solid printing is set on the thermal paper 136 (S303). This line number is thermal paper 136
The color of the stencil printing plate 120 is detected by the reflective optical sensor 39 when the stencil printing plate 120 is mounted on the stamp plate making apparatus 12. Therefore, the stencil printing plate 120 thus prepared is in a state in which the thermal paper 136 is colored.

Next, after 1-line solid printing (S30
4) The stencil printing plate 120 for one line is sent out, and the number of solid printing lines is reduced by 1 (S305). Then, it is determined whether the number of solid print lines has become 0 (S30
6) Then, the process returns to S304 until it becomes 0, and the solid printing for each line is repeated. When the number of solid print lines becomes 0, the solid print flag is set to 0 (S307) and the thermal head 28 is separated from the stencil printing plate 120 (S30).
8). Finally, the stencil printing plate 120 is sent out (S30
9), it is sent to just below the stamp member 140 of the stamp plate making device 12. With the above operation, the plate making operation is completed, and B in FIG.
Return to and accept new processing.

As is apparent from what has been described above, in the stamping device of this embodiment, the heat-sensitive paper 13 is once made into the plate.
When the stencil printing plate 120 in which 6 is colored is set in the stamp plate making apparatus 12, the reflection type optical sensor 39 detects that the thermal paper is colored, and control is performed so as not to perform the plate making operation based on the detection result. Therefore, the user can inadvertently use the master plate 120 for stencil printing that has already been prepressed.
Even when set to 2, the thermal head 2
8 and the inside of the device are not stained with ink or damaged.

The present invention is not limited to the embodiments described in detail above, and modifications can be made without departing from the spirit of the invention. For example, in the present embodiment, the input device is a keyboard, but character or mark data may be input from a personal computer or the like to a reception terminal (not shown) for plate making. Further, although the reflection type optical sensor is used as the detection means of the color development of the thermal paper, a solid-state image sensor used for image input may be used.

[0043]

As is apparent from the above description,
In the stamp device of the present invention, when the stencil printing plate that has been plate-formed once and the color of the thermosensitive coloring paper is set in the platemaking device, the detection means detects that the thermosensitive coloring paper is coloring, and the detection result Since the control means controls so as not to perform the plate making operation, even if the user carelessly sets the stencil printing master plate that has already been made into the plate making apparatus, the plate making operation is not performed, and the plate making apparatus is stained or damaged with ink. There is nothing to do.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a stencil printing plate of the present embodiment.

FIG. 2 is a perspective view of a stamp plate making apparatus.

FIG. 3 is a cross-sectional view of a plate making mechanism of the stamp plate making apparatus.

FIG. 4 is a block diagram of an electronic control unit.

FIG. 5 is a cross-sectional view of a heat-sensitive stencil sheet.

FIG. 6 is a flowchart of processing of power-on and power-down portions.

FIG. 7 is a flowchart showing processing of a main program.

FIG. 8 is a flowchart showing the processing of a main program.

FIG. 9 is a side view of a conventional stamp member.

FIG. 10 is a schematic configuration diagram of a conventional pressing stencil printer.

FIG. 11 is an exploded perspective view of a conventional stencil printing plate.

[Explanation of symbols]

 12 Stamp plate making apparatus 28 Thermal head 39 Reflective optical sensor 40 Microcomputer 120 Stencil printing original plate 122 Thermosensitive stencil base paper 126 Nonwoven fabric 130 Film 136 Thermal paper 140 Stamping member

Claims (1)

[Claims] 1. A stencil printing plate comprising a thermosensitive stencil stencil capable of thermal perforation, an impregnated body impregnated with ink, and an ink impermeable substrate, which are sequentially laminated, and a stencil printing plate. Consisting of a plate making apparatus having a heat punching means for hot punching a stencil sheet, after heat punching the stencil printing plate by the plate making apparatus, a pressing force from the base material side of the stencil printing plate by a pressing means. In addition, in a stamping device having a structure in which the ink impregnated in the impregnated body is exuded from the perforated portion and transferred to a printing medium, a thermosensitive coloring paper is provided in a part of the stencil printing original plate, and the plate making device is provided. Is a coloring means for coloring the thermosensitive coloring paper during plate making operation, a detecting means for detecting whether or not the thermosensitive coloring paper is thermosensitive, and the thermosensitive coloring paper is thermosensitively colored by the detecting means. When detected The stamp apparatus characterized by a control means for controlling so as not to perform plate making operation by the thermal perforation.