JP7365675B2 - stencil printing device - Google Patents

Description

The present invention relates to a stencil printing device.

Patent Document 1 discloses a stencil printing apparatus having a first printing mode and a second printing mode. In the first printing mode, this stencil printing apparatus adheres the stencil paper after stencil making over the entire circumference of the printing area of the plate cylinder, and presses a printing paper of a size corresponding to this printing area to the stencil paper. In the second printing mode, a protector with an aperture of a predetermined print size is attached to the entire circumference of the printing area of the plate cylinder, and a print image of a size corresponding to the aperture is formed on the outside of the protector. A stencil paper on which a calligraphy image has been made is pasted onto the opening, and a printing paper of a size corresponding to the opening is pressed against the stencil paper.

Japanese Patent Application Publication No. 4-52175

In the stencil printing apparatus, a stencil paper with perforated openings is used as a protector, and a plurality of stencil papers are wound around a printing cylinder. If a plurality of stencil sheets are wrapped around a printing cylinder, for example, when starting a new printing, when removing the stencil paper used in the previous printing from the printing cylinder, the printing cylinder is rotated and each stencil paper is wrapped. There are cases where it is necessary to stop at a predetermined position. In this case, if the number of stencil sheets wrapped in the printing cylinder is not known, it will take time to stop the printing cylinder at a predetermined position for each stencil, and the start of new printing will be delayed. There are cases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a stencil printing apparatus that can prevent delays in starting printing.

A stencil printing device according to one embodiment of the present disclosure includes:
A plate-making department that makes stencil sheets;
a printing unit capable of printing paper, the printing unit having a plate cylinder around which the stencil paper produced by the plate-making unit is wound around the outer circumferential surface of the rotating shaft;
comprising: a plate discharge unit that removes the stencil paper wound around the plate cylinder from the plate cylinder; and a control device that controls each of the plate making unit, the printing unit, and the plate discharge unit;
The stencil paper includes a first stencil paper and a second stencil paper smaller in size than the first stencil paper,
The stencil plate is configured such that the second stencil paper can be wrapped around the first stencil paper in a state in which the first stencil paper is wound on the printing cylinder so as to overlap the second stencil paper on the outer side of the first stencil paper in the radial direction with respect to the rotation axis. A printing device,
comprising a stencil number acquisition unit that detects the number of stencil sheets wound around the plate cylinder;
The control device controls the plate making section, the printing section, and the plate discharging section based on the number of stencil sheets acquired by the number of stencil sheets acquiring section.

The stencil printing machine of the above aspect can further adopt the following configuration.
(1) The control device is
The apparatus includes a first notifying section that notifies the number of stencil sheets acquired by the number of stencil sheets acquiring section.

(2) further comprising a drive device that rotates the plate cylinder around the rotation axis,
The plate discharging unit is
The stencil paper wound around the printing cylinder is configured to be able to hold one circumferential end of the stencil sheet with respect to the rotating shaft, and the printing cylinder is rotated by the driving device while holding the one circumferential end, and the printing cylinder is rotated by the driving device. The stencil paper wound around the plate cylinder is removed by the stencil discharge unit pulling in the stencil paper;
The control device includes:
When removing the stencil sheets wound around the printing cylinder from the printing cylinder, the driving device is controlled based on the number of stencil sheets acquired by the number of stencil sheets acquiring section.

(3) a first attachment member capable of attaching and detaching one end of the first stencil paper in the circumferential direction to and from the plate cylinder;
further comprising a second attachment member capable of attaching and detaching one end of the second stencil paper in the circumferential direction to and from the plate cylinder;
When each of the first stencil paper and the second stencil paper is attached to the plate cylinder, the second stencil paper covers the first mounting member,
When removing the first stencil sheet and the second stencil sheet attached to the printing cylinder, the driving device rotates the printing cylinder and removes the second mounting member and the first mounting member in this order. One end in the circumferential direction of the second stencil sheet, which is attached to the plate cylinder by the second attachment member and facing the plate discharge part, is removed from the plate cylinder and held in the plate discharge part, and the first One circumferential end of the first stencil sheet attached to the plate cylinder by an attachment member is removed from the plate cylinder and held by the plate discharge section, and the plate cylinder is rotated to transfer the first stencil paper to the plate discharge section. Let the stencil paper be pulled in.

(4) The printing modes include a normal printing mode in which printing is performed with only the first stencil paper on which the printing image has been made wrapped around the printing cylinder, and a normal printing mode in which printing is performed with only the first stencil paper on which the printing image has been made wrapped around the printing cylinder; a double-wrap printing mode in which printing is performed in a state in which the first stencil paper on which a solid stencil has been made and the second stencil paper on which a printing image has been made are wound;
The print job includes a normal print job in which printing is executed in the normal print mode, and a double-roll print job in which printing is executed in the double-roll print mode.

(5) If the print job executed immediately before the start of the print job is the normal print job, the first stencil paper is removed from the plate cylinder by the plate discharge unit, and the print job executed immediately before is removed from the plate cylinder. If the print job is in the double roll printing mode, the plate discharge unit removes only the second stencil paper or both the first stencil paper and the second stencil paper from the plate cylinder,
The control device includes:
comprising a print control unit that continuously executes the plurality of received print jobs;
The print control unit includes:
If a plurality of the double roll print jobs are included in the plurality of received print jobs, the double roll print jobs are executed consecutively.

(6) If the print job executed immediately before the start of the print job is the normal print job, the first stencil sheet is removed from the plate cylinder by the plate discharge unit, and the print job executed immediately before is removed from the plate cylinder. If the print job is in the double-roll printing mode, the plate discharge unit removes only the second stencil paper or both the first stencil paper and the second stencil paper,
The control device includes:
comprising a print control unit that continuously executes the plurality of received print jobs;
The print control unit includes:
When print jobs are received in the order of the first normal print job, the double roll print job, and the second normal print job, the printing performed in the double roll print job is executed in the normal print mode. do.

(7) The control device,
If the print job executed immediately before is the double-volume printing job, the solid plate-making size or the solid plate-making size of the first stencil paper used in the immediately previous double-volume printing job. and a solid plate making information acquisition unit that acquires the solid plate making position,
Based on the solid plate making size of the first stencil paper acquired by the solid plate making information acquisition unit, or based on the solid plate making size and solid plate making position of the first stencil paper, the plate making unit, the printing unit and The plate discharging section is controlled.

(8) The control device is
The apparatus includes a second notification section that notifies the solid stencil size of the first stencil sheet acquired by the solid stencil information acquisition section, or the solid stencil size and solid stencil position.

(9) The control device,
The normal print job is accepted as the new print job, and the print image to be executed in the new print job falls within the range of solid plate making of the first stencil sheet acquired by the solid plate making information acquisition unit. In this case, the print job includes a first warning generation unit that generates a warning while suspending execution of the new accepted print job.

(10) The double volume print job includes a first double volume print job and a second double volume print job,
The print control unit includes:
In the case where the first double volume print job and the second double volume print job are executed consecutively, the print image of the printing performed in the second double volume print job is , if the first stencil paper wound on the plate cylinder falls within the range of solid plate making before the second double roll printing job is started, the start of the second double roll printing job; continuously using the first stencil paper used in the first double-wrap printing job in the second double-wrap printing job without previously removing the first stencil paper from the plate cylinder; let

(11) The print control section includes:
The case where the double roll print job and the normal print job are executed consecutively, and the print image of the printing performed in the normal print job is the first print image used in the double roll print job. If it falls within the range of solid plate making of stencil paper, the printing executed in the normal print job is executed in the double roll printing mode.

(12) further comprising a plate cylinder detection unit that detects the type of the plate cylinder,
The plate cylinder includes a double-wrap compatible plate cylinder in which the first stencil paper and the second stencil paper can be wound, and a double-wrap non-compatible plate cylinder in which only the first stencil paper can be wound. It will be done.

(13) The control device,
It has a third notification section that notifies the type of the plate cylinder detected by the plate cylinder detection section.

(14) The control device includes:
When the type of the plate cylinder detected by the plate cylinder detection unit is the double-wrap non-compatible plate cylinder, printing is not performed in the double-wrap printing mode.

(15) The control device,
If the type of the plate cylinder detected by the plate cylinder detection unit is the double-wrap non-compatible plate cylinder, and the new print job accepted is the double-wrap print job, a warning is generated. It has a second warning generating section.

The plate cylinder of one embodiment of the present invention is
A plate cylinder of a stencil printing device, in which a pre-screened stencil paper is wrapped around the outer peripheral surface around a rotating shaft,
With the first stencil paper being wound, a second stencil paper smaller in size than the first stencil paper can be stacked and wound on the outside of the first stencil paper in the radial direction with respect to the rotation axis;
It is configured such that it can be installed in the stencil printing apparatus in a state in which only the first stencil paper is wound, or in a state in which the first stencil paper and the second stencil paper are wound.

The plate cylinder of the above aspect can further adopt the following configuration.
(16) The apparatus further includes a detection portion capable of causing the stencil printing apparatus to detect whether or not the first stencil paper and the second stencil paper can be wound.

(17) The apparatus further includes an erroneous attachment prevention member capable of preventing erroneous attachment to the stencil printing apparatus in which printing cannot be performed with the first stencil paper and the second stencil paper wrapped.

According to the stencil printing apparatus of the above aspect, the stencil printing apparatus includes a stencil number acquisition section that detects the number of stencil sheets wound around the printing cylinder, and the control device detects the number of stencil sheets acquired by the stencil number acquisition section. to control the plate making section, printing section and plate discharging section. With such a configuration, it is possible to perform optimal control according to the number of stencil sheets wrapped around the plate cylinder, so it is possible to provide a stencil printing apparatus that can prevent delays in the start of printing.

According to the configuration (1), the time required to confirm the number of stencil sheets can be reduced, so that delays in the start of printing can be more reliably prevented.

According to the configuration (2), since the time required to remove the stencil paper can be reduced, delays in the start of printing can be more reliably prevented.

According to the configuration (3), for example, both the first stencil paper and the second stencil paper can be removed from the printing cylinder during one rotation of the printing cylinder, so the time required to remove the stencil paper can be reduced. It can be further reduced. As a result, delays in printing start can be more reliably prevented.

According to configurations (4) and (5), it is possible to reduce the number of times the stencil paper is made, so it is possible to save the stencil paper and prevent a delay in the start of printing.

According to the configuration (6), the number of times the stencil paper is made can be reduced, so it is possible to save the stencil paper and prevent a delay in the start of printing.

According to the configuration (7), optimal control can be performed according to the solid plate making size of the first stencil paper, or the solid plate making size and the solid plate making position, so that delays in the start of printing can be more reliably prevented. .

According to the configuration (8), it is possible to reduce the time required to confirm the solid stencil size or the solid stencil size and solid stencil position of the first stencil paper, so that delays in the start of printing can be more reliably prevented. .

According to the configuration (9), printing can be prevented from being executed in the normal printing mode when printing should be executed in the double roll printing mode. As a result, inefficient stencil making of stencil paper is prevented, and it is possible to save stencil paper and prevent a delay in the start of printing.

According to configuration (10), when switching the print job from the first double-volume print job to the second double-volume print job, the first stencil paper is not replaced. This makes it possible to save stencil paper and prevent delays in starting printing.

According to configuration (11), when switching print jobs, if the first stencil paper can be used in a newly accepted print job, the first stencil paper is not replaced. This makes it possible to save stencil paper and prevent delays in starting printing.

According to configuration (12), the time required to confirm the type of plate cylinder can be reduced, so that delays in the start of printing can be more reliably prevented.

According to the configuration (13), the time required to confirm the type of plate cylinder can be more reliably reduced, so that delays in the start of printing can be more reliably prevented.

According to the configuration (14), erroneous operations can be prevented and delays in printing start can be more reliably prevented.

According to the configuration (15), erroneous operations can be prevented and delays in printing start can be more reliably prevented.

According to the printing cylinder of the above aspect, while the first stencil paper is wound, the second stencil paper, which is smaller in size than the first stencil paper, is overlapped and wound on the outside of the first stencil paper in the radial direction with respect to the rotation axis. It is configured so that it can be installed. With such a configuration, it is possible to realize a plate cylinder that is compatible with the double-wrap printing mode.

According to the configuration (16), it is possible to reduce the time required to confirm whether or not the double-wrap printing mode can be supported, thereby preventing a delay in the start of printing.

According to the configuration (17), erroneous operations can be prevented and delays in starting printing can be prevented.

1 is a schematic diagram showing a stencil printing apparatus according to an embodiment of the present invention. 2 is a first schematic diagram showing a plate cylinder of the stencil printing apparatus of FIG. 1; FIG. FIG. 2 is a second schematic diagram showing the plate cylinder of the stencil printing apparatus of FIG. 1; FIG. 2 is a block diagram of the stencil printing apparatus shown in FIG. 1; 2 is a flowchart for explaining print control of the stencil printing apparatus of FIG. 1. FIG. FIG. 2 is a developed plan view for explaining the solid plate making range of the first stencil paper in a double roll printing job of the stencil printing apparatus of FIG. 1; FIG. 2 is a developed side view for explaining a solid plate making range of a first stencil paper in a double roll printing job of the stencil printing apparatus of FIG. 1; FIG. 2 is a developed plan view for explaining the stencil-making range of the first stencil paper in a normal print job of the stencil printing apparatus of FIG. 1; FIG. 2 is a developed side view for explaining the plate-making range of the first stencil paper in a normal print job of the stencil printing apparatus of FIG. 1;

An example of the present disclosure will be described below with reference to the accompanying drawings. In addition, in the following explanation, terms indicating a specific direction or position (for example, terms including "top", "bottom", "right", "left", "front", and "back") will be used as necessary. However, these terms are used to facilitate understanding of the present disclosure with reference to the drawings, and the technical scope of the present disclosure is not limited by the meanings of these terms. Moreover, the following description is essentially only an example, and is not intended to limit the present disclosure, its applications, or its uses. Furthermore, the drawings are schematic, and the ratio of each dimension does not necessarily match the reality.

As shown in FIG. 1, a stencil printing apparatus 1 according to an embodiment of the present invention includes a stencil making section 2, a printing section 3, a stencil discharging section 6, and a control device 100 that controls the stencil making section 2, printing section 3, and stencil discharging section 6. It is equipped with In this embodiment, the plate making section 2, the printing section 3, the plate discharging section 6, and the control device 100 are arranged inside the apparatus main body 10. The stencil printing apparatus 1 further includes a paper feed section 4 and a paper discharge section 5. Note that the downstream side of the paper feeding direction (i.e., the right side in FIG. 1) with respect to the apparatus main body 10 is referred to as the "front side", and the upstream side of the paper feeding direction (i.e., the left side in FIG. 1) is referred to as the "rear side". shall be.

As shown in FIG. 1, the stencil making section 2 is, for example, disposed on the rear side of the center of the apparatus main body 10 in the front-rear direction, and includes a stencil paper roll 11, a thermal head 21, and the like. This stencil making section uses a thermal head 21 to make a stencil on a stencil sheet pulled out from a stencil sheet roll 11 based on image data generated by an image reading device 71 (shown in FIG. 4). The stencil paper after plate making is mounted on the outer circumferential surface 312 of a plate cylinder 31 of the printing section 3, which will be described later.

As shown in FIG. 1, the printing section 3 is, for example, disposed approximately at the center of the apparatus main body 10 in the front-rear direction, and includes a cylindrical plate cylinder 31, a pressure roller 32, and an ink supply roller 33. , and is configured to be able to print paper 200. The plate cylinder 31 is configured to be rotatable around a rotating shaft 311 with respect to the apparatus main body 10, and a stencil paper 210 made by printing is wrapped around an outer peripheral surface 312 around the rotating shaft 311. That is, the plate cylinder 31 is configured to be able to be attached to the stencil printing apparatus 1 in a state in which the stencil paper 210 that has already been made has been wound thereon. The pressure roller 32 is configured to be rotatable with respect to the apparatus main body 10, and is arranged such that its outer peripheral surface around its rotation axis faces the outer peripheral surface 312 of the plate cylinder 31. The ink supply roller 33 is disposed so as to be inscribed in the plate cylinder 31 and substantially opposed to the pressure roller 32 . The plate cylinder 31 will be described in detail later.

As shown in FIG. 1, the paper feed section 4 is arranged, for example, at the rear end of the apparatus main body 10, and includes a paper feed table (not shown), a paper feed roller (not shown), and the like. The paper feed unit 4 is configured to be able to take out the sheets 200 stacked on the paper feed table one by one starting from the top and supply them to the printing unit 3.

As shown in FIG. 1, the paper discharge section 5 is disposed, for example, at the front end of the apparatus main body 10, and includes an air suction type conveyor belt mechanism (not shown), a paper discharge table 51, and the like. The paper discharge section 5 is configured to be able to transport the paper 200 printed by the printing section 3 rearward while suctioning air, and discharge it onto the paper discharge table 51 .

As shown in FIG. 1, the plate discharge section 6 is disposed, for example, in front of the center of the apparatus main body 10 in the front-rear direction, and includes a pull-in roller 61, a take-up roller 63, and the like. The plate discharge section 6 is configured such that one end of the stencil paper 210 wound around the plate cylinder 31 in the circumferential direction with respect to the rotating shaft 311 can be held by a pull-in roller 61 . The stencil paper 210 wound around the plate cylinder 31 is removed from the plate cylinder 31 by a pull-in roller 61 and drawn into the plate discharge section 6, and the drawn-in stencil paper 210 is wound up by a winding roller 63.

The stencil printing apparatus 1 operates as follows. That is, the stencil paper 210 is supplied from the stencil paper roll 11 to the stencil making section 2, and is heated and perforated by the thermal head 21 in the stencil making section 2, thereby being stencil-made. The stencil paper 210 that has been made is supplied to the printing section 3 and wound around the printing cylinder 31 . At this time, the stencil paper 210 that has been made is clamped by either one of the clamps 35, 36 (shown in FIG. 2) and attached to the plate cylinder 31. Thereafter, the paper 200 is fed to the printing unit 3 by the paper feeding unit 4. In the printing section 3, the paper 200 is moved by a pressure roller 32 through a screen (not shown), which will be described later, and a plate cylinder 31, in which a stencil paper 210 that has been made is wound in order toward the outside in the radial direction. Printing is performed based on the stencil paper 210 that is pressed against the supply roller 33 and made into a stencil. After the printing is completed, the printed paper 200 is sent to the paper discharge table 51 of the paper discharge section 5, and the stencil paper (i.e., discharged stencil paper) 210 used for printing is transferred to the plate cylinder 31 by the plate discharge section 6. The film is peeled off from the film and wound onto a winding roller 63.

Next, the plate cylinder 31 will be explained in more detail with reference to FIG.

The plate cylinder 31 is rotatable around a rotating shaft 311 by a drive device 75 (shown in FIG. 4), and is configured to be able to wrap stencil sheets 210 of two different sizes. As shown in FIG. 2, the plate cylinder 31 includes, for example, a body part 34 made of stainless steel or resin, and an outer circumferential surface in the radial direction of a rotating shaft 311 in the body part 34 (i.e., an outer circumference of the plate cylinder 31). It has two clamps 35 and 36 (hereinafter referred to as a first clamp 35 and a second clamp 36) provided on a surface 312). The first clamp 35 and the second clamp 36 are examples of attachment members.

A large number of ink passage holes (not shown) are formed on the outer circumferential surface of the body 34, except where the first clamp 35 and the second clamp 36 are installed. A mesh screen (not shown) is wound around the outer periphery of the body 34 around the rotating shaft 311. The screen is placed in a region 341 (hereinafter referred to as the ink passage region 341) in which holes for ink passage are formed in the body 34, and a stencil paper 210 is wound around the outer periphery of the screen around the rotating shaft 311. equipped.

The first clamp 35 and the second clamp 36 are arranged adjacent to each other in the circumferential direction of the body 34 with respect to the rotation axis 311. Each of the clamps 35 and 36 clamps a stencil paper 210 that has been made in a different manner (hereinafter referred to as a first stencil paper 220 and a second stencil paper 230), and is attached to the body portion 34 .

Specifically, the first clamp 35 is configured such that one end of the first stencil paper 220 in the circumferential direction relative to the rotation shaft 311 can be attached to the body 34, and the second clamp 36 is configured to attach one end of the first stencil paper 220 to the rotation shaft 311 of the second stencil paper 230. One end in the circumferential direction of 311 is configured to be attachable to body portion 34 . Each stencil paper 220, 230 attached to the body 34 by a respective clamp 35, 36 extends clockwise in FIG. 2 from the corresponding clamp 35, 36, respectively. That is, the second stencil paper 230 is wrapped around the first stencil paper 220 on the outside in the radial direction with respect to the rotating shaft 311 while covering the first clamp 35 . Further, each clamp 35, 36 is configured to be openable/closeable by an opening/closing device 74 (shown in FIG. 4).

Note that the first stencil paper 220 has a size (for example, A3 size) that covers the entire ink passage area 341 of the body portion 34, for example. Further, the second stencil paper 230 has a smaller size (for example, A4 size) than the first stencil paper 220. The first stencil paper 220 is supplied with ink that has passed through the ink passage holes. Further, the second stencil paper 230 is supplied with ink that has passed through the ink passage holes and the first stencil paper 220 .

In the normal printing mode, which will be described later, the stencil making range 121 of the first stencil paper 220 is determined so as to satisfy all of the following conditions, as shown in FIGS. 6 and 7.
- Within the range of the ink passage area 341 - Within the size of the first stencil paper 220

Furthermore, in the double roll printing mode described later, the first stencil paper 220 is subjected to solid stencil making. The solid plate making range 221 of the first stencil paper 220 in the double roll printing mode is determined so as to satisfy all of the following conditions, as shown in FIGS. 8 and 9.
- Within the range of the ink passage area 341 - Within the size of the second stencil paper 230 - The same as or larger than the plate making range 131 of the second stencil paper 230 The plate making range 131 of the second stencil paper 230 is the ink passage of the body 34 The size is set within the area 341 and smaller than the size of the second stencil paper 230. Note that solid plate making means making a plate in which holes are formed over the entire predetermined range of the stencil paper 210.

Further, although not shown, the plate cylinder 31 includes a detected portion and an erroneous attachment prevention member. The detected portion allows the stencil printing apparatus 1 to detect whether or not the plate cylinder 31 can be wound with the first stencil paper 220 and the second stencil paper 230. The erroneous attachment prevention member prevents the plate cylinder 31 from being erroneously attached to a stencil printing device that cannot perform printing in a state where the first stencil paper 220 and the second stencil paper 230 are wound.

For example, a connector that connects the plate cylinder 31 to the apparatus main body 10 can be used as the detected part. The connector of the plate cylinder, which can only be wound with the first stencil paper 220, and the connector of the plate cylinder 31, which can be wound with both the first stencil paper 220 and the second stencil paper 230, mutually change the shape of the terminals, etc. By changing, it is confirmed that the stencil printing apparatus 1 is equipped with the plate cylinder 31 and can be wound with the first stencil paper 220 and the second stencil paper 230 (that is, the plate cylinder is compatible with double winding). can be detected.

Further, for example, a protrusion provided on the plate cylinder 31 can be used as a member to prevent incorrect attachment. The plate cylinder 31 in which both the first stencil paper 220 and the second stencil paper 230 can be wrapped is provided with a projection having a shape that corresponds only to the stencil printing device 1, and only this projection is fitted into the stencil printing device 1. By providing a possible cutout or the like, it is possible to prevent the plate cylinder 31 from being erroneously installed in a stencil printing device other than the stencil printing device 1.

The control device 100 includes, for example, a CPU that performs calculations, a ROM and a RAM that store programs or data necessary for the operation of the stencil printing device 1, and controls the printing of paper. conduct. As shown in FIG. 4, the control device 100 controls the plate making section 2, printing section 3, paper feeding section 4, It controls the paper discharge section 5, the plate discharge section 6, the image reading device 71, the display section 73 of the operation section 7, the opening/closing device 74, the drive device 75 of the printing section 3, and the like.

Note that the operation unit 7 is used for inputting print jobs and the like. The display unit 73 displays the input print job or the operating state of the stencil printing apparatus 1. The stencil paper detection unit 72 is an example of a stencil number acquisition unit, and is composed of, for example, a photo reflector or a photo interrupter, and as shown in FIG. is located between.

The stencil paper detection unit 72 detects and obtains the number of stencil sheets 210 wound around the printing cylinder 31 by detecting the presence or absence of the stencil sheets 210 at an appropriate timing as described below. First, the stencil paper detection unit 72 determines whether or not the second stencil paper 230 is wound around the plate cylinder 31 based on the reflectance of light irradiated toward the portion between the first clamp 35 and the second clamp 36. The number of stencil sheets 210 wound around the printing cylinder 31 is detected based on whether or not the second stencil sheets 230 are wound around the printing cylinder 31 . For example, when it is detected that the second stencil paper 230 is wound around the plate cylinder 31, the stencil paper detection unit 72 detects that there are two stencil sheets 210 wound around the plate cylinder 31. . Further, if it is not detected that the second stencil paper 230 is wound around the plate cylinder 31, the stencil paper detection unit 72 determines that the number of stencil sheets 210 wound around the plate cylinder 31 is one or zero. To detect.

When it is detected that the number of stencil sheets 210 wound around the plate cylinder 31 is one or zero, the control device 100 rotates the plate cylinder 31 to detect the stencil paper detecting section 72, as shown in FIG. The first clamp 35 is moved to a position on the upstream side in the circumferential direction. Then, the stencil paper detection unit 72 detects whether the first stencil paper 230 is wound around the plate cylinder 31 based on the reflectance of the light irradiated toward the upstream portion of the first clamp 35 in the circumferential direction. do. This makes it possible to determine whether the number of stencil sheets 210 wound around the plate cylinder 31 is one or zero. The number of stencil sheets detected by the stencil paper detection section 72 is displayed on, for example, the display section 73 or an external device (not shown). The external device is, for example, a personal computer, a smartphone, or a tablet PC, and is connected to the control device 100 via a communication means such as the Internet.

Further, as shown in FIG. 4, the control device 100 includes a print control section 101, a solid plate making information acquisition section 102, a warning generation section 103, a plate cylinder detection section 104, a storage section 105, and a notification section 106. Each of the print control unit 101, solid prepress information acquisition unit 102, warning generation unit 103, plate cylinder detection unit 104, storage unit 105, and notification unit 106 is a function realized by the CPU executing a predetermined program, for example. It is.

The print control unit 101 receives a print job input through the operation unit 7, and controls the plate making unit 2, the printing unit 3, the plate discharging unit 6, and the drive device 75 to execute the received print job. Information regarding the accepted print job, such as the print mode, the size of the paper to be printed, and the size of the print image, is stored in the storage unit 105, for example.

When a plurality of print jobs are accepted, the print control unit 101 successively executes the plurality of print jobs that have been accepted, as shown in the following (1) to (4). Here, as an example, the stencil printing apparatus 1 has two printing modes: a normal printing mode in which printing is performed with only the first stencil sheet 220 wound around the plate cylinder 31, and a normal printing mode in which printing is performed with only the first stencil paper 220 wound around the plate cylinder 31; It is assumed that there is a double-wrap printing mode in which printing is performed with the base paper 220 and the second stencil paper 230 wound together. Specifically, in the normal printing mode, printing is performed with only the first stencil paper 220 on which the print image has been made engraved around the plate cylinder 31. In the double-wrap printing mode, printing is performed with the first stencil paper 220 on which the area corresponding to the printing image has been made solid and the second stencil paper 230 on which the printing image has been made wrapped around the plate cylinder 31. will be held. It is also assumed that the stencil printing apparatus 1 has, as print jobs, a normal print job in which printing is executed in a normal print mode, and a double-roll print job in which printing is executed in a double-roll print mode.

(1) For example, as shown in Table 1 below, if nine print jobs including multiple regular print jobs and multiple double roll print jobs are received in order from 1 to 9, the print control unit 101, as shown in Table 2 below, changes the order of the print jobs to be executed so that the double roll print jobs are executed consecutively. Note that when printing on A4 paper in the double roll printing mode, the size of the second stencil paper 230 is approximately half the size of the first stencil paper 220.

When the stencil paper 210 that has been made for printing is wound around the printing cylinder 31 before the start of each print job, the plate discharge unit 6 discharges the stencil paper 210 that has been made for the previous print job. In principle, all of the stencil paper 210 that has been used in the previous print job is ejected before starting a new print job. However, in the case where the double roll printing mode is continuous, the print image to be executed in the later double roll print job is wound on the plate cylinder 31 before the start of the later double roll print job. In other words, when viewed along the radial direction with respect to the rotating shaft 311, the entire printed image of the printing to be performed in the subsequent double roll printing job is , if the hole formed by the solid plate making in the first stencil paper 220 used in the previous double roll printing job overlaps with the open part, the first stencil paper 220 is left and the second stencil paper 230 is moved. Only the prints will be discontinued. Specifically, if the immediately preceding print job is a normal print job, the first stencil paper 220 is removed from the plate cylinder 31 by the plate discharge section 6 . If the previous print job was in double roll printing mode, and the print image to be executed in the later double roll print job is not printed on the plate cylinder 31 before the start of the later double roll print job. If the rolled first stencil paper 220 falls within the range of solid plate making, only the second stencil paper 230 is removed from the plate cylinder 31 by the plate discharge section 6 . Also, if the previous print job was in double roll printing mode, and the print image of the printing performed in the later double roll print job is printed on the plate cylinder before the start of the later double roll print job. If the first stencil paper 220 wrapped around the plate cylinder 31 does not fall within the range of solid printing, both the first stencil paper 220 and the second stencil paper 230 are removed from the plate cylinder 31 . Therefore, if the print jobs are executed in the order shown in Table 1, 9.5 sheets of A3 size stencil paper 210 will be required, but as shown in Table 2, if the double roll printing jobs are executed consecutively. As a result, the number of required stencil sheets 210 can be reduced from 9.5 sheets to 7.5 sheets. Thereby, the number of times the stencil paper 210 is made can be reduced.

Whether the printed image to be executed in the later double-roll printing job falls within the range of the solid plate making of the first stencil paper 220 that is wound around the plate cylinder 31 before the start of the later double-roll printing job. The determination (hereinafter referred to as first range determination) is performed, for example, as follows. That is, first, check whether the prepress start position of the solid plate making of the first stencil paper 220 in the previous double roll printing job is the same as the prepress start position of the print image of the second stencil paper 230 in the subsequent double roll print job. Determine whether or not. If the prepress start position in the previous double roll print job is the same as the prepress start position in the subsequent double roll print job, the solid plate making size of the first stencil paper 220 in the previous double roll print job and the subsequent double roll print job are the same. The first range determination is performed based on the print image size (or paper size) of the second stencil paper 230 in the double roll printing job. In addition, if the prepress start position in the previous double roll print job is different from the prepress start position in the subsequent double roll print job, the solid plate making size and the solid plate size of the first stencil paper 220 in the previous double roll print job are different. The first range determination is performed based on the prepress position, the print image size (or paper size) of the second stencil paper 230 in the subsequent double-wrap printing job, and the prepress position of the print image.

The first range determination is performed between the prepress start position of the solid plate making of the first stencil paper 220 in the previous double roll print job and the prepress start position of the print image of the second stencil paper 230 in the subsequent double roll print job. This may also be done by determining whether the distance between them is constant. For example, as shown in FIG. 8, the plate-making start position of the solid stencil of the first stencil paper 220 in the previous double-volume printing job is the left edge S1 in the circumferential direction of the solid stencil-making range 221, and the subsequent double-volume printing It is assumed that the prepress start position of the print image of the second stencil paper 230 in the job is the left end S2 in the circumferential direction of the prepress range 131 of the print image of the second stencil paper 230. In this case, the distance between the prepress start position S1 and the prepress start position S2 is determined by A3. When A3 is constant (including zero), the solid plate making size of the first stencil paper 220 in the previous double roll printing job (that is, the circumferential direction length A1 of the solid plate making range 221) and the subsequent double roll printing The first range determination is performed based on the print image size of the second stencil paper 230 in the job (that is, the circumferential length A2 of the prepress range 131 of the print image) or the paper size. On the other hand, if A3 is not constant but changes for each print job, the solid plate making size of the first stencil paper 220 (that is, the circumferential length A1 of the solid plate making range 221) and the solid plate making position in the previous double roll printing job and the print image size of the second stencil paper 230 (that is, the circumferential length A2 of the prepress range 131 of the print image) or the paper size and the print image position in the second stencil paper 230 in the subsequent double roll printing job. A judgment is made.

When double roll printing jobs are consecutive, the conditions for discharging only the second stencil paper 230 while leaving the first stencil paper 220 are as follows: The present invention is not limited to the case where it falls within the range of solid plate making of the first stencil paper 220 that is wound around the plate cylinder 31 before the start of the double roll printing job. For example, it may be the case that a print image of a print executed in a later double-roll print job falls within the range of a print image of a print executed in a previous double-roll print job.

From the viewpoint of quality assurance, the number of times the first stencil paper 220 can be used continuously can be determined in advance. That is, even if the condition that the first stencil paper 220 is not removed before starting a subsequent double-wrap printing job is satisfied, if the first stencil paper 220 is not removed a predetermined number of times in succession, the stencil discharge unit 6 The first stencil paper 220 is removed from the plate cylinder 31, and a new first stencil paper 220 is made by the plate-making section 2 and wound around the plate cylinder 31.

It is assumed that the "plate-making size", "image size", and "plate-making start position" are the size and position when viewed along the radial direction with respect to the rotating shaft 311.

(2) For example, instead of changing the order of print jobs to be executed as described above, the print control unit 101 can execute print jobs in succession as follows. That is, as shown in Table 3 below, it is assumed that nine print jobs including a plurality of normal print jobs and a plurality of double roll print jobs are accepted. In this case, as shown in Table 4 below, the print control unit 101 executes printing performed in a double roll print job sandwiched between normal print jobs in the normal print mode instead of in the double roll print mode. .

When the print jobs are executed in the order shown in Table 3, 11 sheets of A3-sized stencil paper 210 are required, but as shown in Table 4, printing is performed in a double roll print job sandwiched between normal print jobs. By executing in the normal printing mode, the number of required stencil sheets 210 can be reduced from 11 to 9. Thereby, the number of times the stencil paper 210 is made can be reduced.

(3) For example, if a first double-volume print job and a second double-volume print job are executed consecutively in this order, the print image of the print executed in the second double-volume print job is Assume that the image is within the range of the print image to be executed in one double-roll print job. In this case, the print control unit 101 does not remove the first stencil paper 220 from the plate cylinder 31 before starting the second double-volume printing job, and instead The first stencil paper 220 used in the roll printing job is used continuously. The stencil paper 210 that has already been stenciled and removed when switching print jobs is the stencil paper 210 on which a printing image has been stenciled. In other words, if the print image of the second double roll print job falls within the range of the print image of the first double roll print job, only the second stencil paper 230 needs to be removed. good. Therefore, by continuously using the first stencil paper 220 used in the first double-roll printing job in the second double-roll printing job, it is possible to reduce the number of required stencil sheets 210. can.

Determining whether the print image of the print executed in the second double-volume print job falls within the range of the print image of the print executed in the first double-volume print job (hereinafter referred to as second range determination). ) is executed, for example, in the same manner as the first range determination. That is, it is determined whether or not the prepress start position of the print image of the first double volume print job is the same as the prepress start position of the print image of the second double volume print job, and if the prepress start positions are the same, , a second determination is made based on the print image size or paper size of the first double-wrap print job and the print image size or paper size of the second double-wrap print job. In addition, if the prepress start positions are different, the print image size or paper size and the prepress position of the print image for the first double roll print job and the print image size or paper size and the print image size and paper size for the second double roll print job. A second range determination is performed based on the prepress position of the print image.

(4) For example, as shown in Table 5 below, assume that a normal print job is accepted after a double roll print job is accepted. The print control unit 101 controls whether the print image to be printed in the normal print job falls within the range of the solid stencil making of the first stencil paper 220 used in the double roll print job, the print image to be printed in the normal print job. Print in double roll printing mode instead of normal printing mode.

When the print job is executed in the order shown in Table 5, 2.5 sheets of A3 size stencil paper 210 are required. The number of stencil sheets 210 can be reduced from 2.5 sheets to 2 sheets. Thereby, the number of times the stencil paper 210 is made can be reduced.

In (1) to (5), the print image used in each print job or the prepress start position of solid plate making, the print image size and print image position of the first stencil paper 220 in a normal print job, the print image size and print image position of the first stencil paper 220 in a double roll print job, For example, the solid plate making size and solid plate making position of the first stencil paper 220, the print image size and print image position of the second stencil paper 230 in a double roll printing job, etc. are obtained from the storage unit 105 by the solid plate making information acquisition unit 102 or the like. be obtained.

When executing print jobs in succession, do you change the order of the print jobs to be executed, or do you execute printing executed in a double roll print job in normal print mode (i.e., (1) and (2)? ) is selected based on the number of stencil sheets 210 that can be reduced, for example. Further, any one of the processes (1) to (4) can be executed, or two or more processes can be executed in any combination.

If the print job executed immediately before is a double roll print job, the solid plate making information acquisition unit 102 acquires the solid plate making size of the first stencil paper 220 used in the immediately previous double roll print job, or Obtain the plate making size and solid plate making position. Note that the solid plate making position refers to the position of solid plate making with respect to the first stencil paper 220 determined by the plate making start position.

Whether or not the print job executed immediately before is a double-wrap printing job is determined, for example, by the number of stencil sheets 210 that have been made and wound around the plate cylinder 31 and detected by the stencil sheet detection unit 72. Ru. Further, the solid plate making size or the solid plate making size and the solid plate making position of the first stencil paper 220 used in the immediately preceding double volume printing job are acquired from the storage unit 105, for example. Further, information regarding the plate cylinder 31 including an identification code is stored in advance in the storage unit 105, and from the information regarding the plate cylinder 31, the solid plate making size of the first stencil paper 220, or the solid plate making size and the solid plate making position. may be obtained.

The solid plate making size or solid plate making size and solid plate making position of the first stencil paper 220 acquired by the solid plate making information acquisition unit 102 are displayed on the display unit 73 or an external device (not shown), for example. The external device is, for example, a personal computer, a smartphone, or a tablet PC that is connected to the control device 100 via a communication means such as the Internet.

For example, if the following predetermined conditions are satisfied when a new print job is accepted, the warning generating unit 103 suspends execution of the accepted new print job and displays the display unit 73 or external device. (not shown) etc. to generate a warning.
- When a normal print job is accepted as a new print job and the print image to be executed in the new print job falls within the range of solid plate making of the first stencil paper 220 acquired by the solid plate making information acquisition unit 102 ( In other words, the number of times the stencil paper 210 is made can be reduced by changing to a double roll printing job).
- When the type of plate cylinder 31 detected by the plate cylinder detection unit 104 is a double-wrap non-compatible plate cylinder, and the accepted new print job is a double-wrap print job.

For example, if the type of plate cylinder 31 detected by the plate cylinder detection unit 104 is a plate cylinder that does not support double-wrap, and the new print job received is a double-wrap print job, the warning generating unit 103 As a warning, an error is displayed on the display section 73 or an external device, and the display section 73 is operated as follows.
-Hide the display related to double roll print job operations.
- Make the display related to double roll print job operations lighter.

The plate cylinder detection unit 104 detects the type of plate cylinder of the stencil printing apparatus 1 . The plate cylinder includes a double-wrap compatible plate cylinder (i.e., a plate cylinder 31) in which the first stencil paper 220 and the second stencil paper 230 can be wound, and a double-wrap non-wrap cylinder in which only the first stencil paper 220 can be wound. A compatible version cylinder is included. The type of plate cylinder of the stencil printing apparatus 1 is detected based on the detected portion of the plate cylinder 31 described above. That is, when a connector having a terminal shape unique to the plate cylinder 31 is connected to the apparatus main body 10, the plate cylinder detection unit 104 detects that the plate cylinder of the stencil printing apparatus 1 is a double-wrap compatible plate cylinder. 31 is detected.

Note that if the type of plate cylinder detected by the plate cylinder detection unit 104 is a plate cylinder that does not support double winding, the printing control unit 101 does not execute printing in the double winding printing mode.

The storage unit 105 stores information regarding accepted print jobs, information regarding the plate cylinder 31, and the like.

The notification unit 106 includes the number of stencil sheets 210 wound around the plate cylinder 31 acquired by the stencil paper detection unit 72 and the number of stencil sheets 210 used in the previous double roll printing job acquired by the solid plate making information acquisition unit 102. The solid plate making size or the solid plate making position of the first stencil paper 220 and the type of plate cylinder 31 detected by the plate cylinder detection unit 104 are notified. These notifications are performed, for example, through display on the display unit 73 or an external device (not shown).

Next, the printing process of the stencil printing apparatus 1 will be explained with reference to FIG. Note that the control processing described below is implemented by the control device 100 executing a predetermined program.

As shown in FIG. 5, upon receiving a print job (step S1), the print control unit 101 determines whether the print mode to be executed in the received print job is a normal print job or a double roll print mode. Determination is made (step S2).

If it is determined in step S2 that the print mode of the received print job is the normal print mode, the stencil paper detection unit 72 detects the number of stencil sheets 210 that have been made and are wound around the plate cylinder 31 ( Step S3).

If the number of stencil sheets 210 that have been made and wound around the plate cylinder 31 detected in step S3 is zero, the control device 100 does not discharge the stencils and controls the stencil making section 2 to The stencil paper 220 is made into a stencil (step S4), and the print control unit 101 starts a print job (step S13). In addition, in step S4, before the first stencil paper 220 is made into a stencil, the stencil discharging unit 6 may be idled.

If the number of stencil sheets 210 that have been made and wrapped around the plate cylinder 31 detected in step S3 is one, the control device 100 controls the plate discharge section 6 to unwind the stencil sheets 210 around the plate cylinder 31. After removing the first stencil paper 220, the stencil making unit 2 is controlled to stencil-make a printing image on the first stencil paper 220 (step S5). After that, a print job is started by the print control unit 101 (step S13).

If the number of stencil sheets 210 that have been made and wrapped around the plate cylinder 31 detected in step S3 is two, the control device 100 controls the plate discharge section 6 to unwind the stencil sheets 210 around the plate cylinder 31. After removing the first stencil paper 220 and the second stencil paper 230, the stencil making section 2 is controlled to make a printing image on the first stencil paper 220 (step S6). After that, a print job is started by the print control unit 101 (step S13).

Even when it is determined in step S2 that the print mode of the received print job is double roll printing mode, the stencil paper detection is performed in the same way as when it is determined that the print mode of the received print job is normal print mode The unit 72 detects the number of stencil sheets 210 that have been made and are wound around the plate cylinder 31 (step S7).

If the number of stencil sheets 210 that have been made and wound around the plate cylinder 31 detected in step S7 is zero, the control device 100 does not discharge the stencils and controls the stencil making section 2 to The stencil paper 220 and the second stencil paper 230 are made into plates (step S8). After that, a print job is started by the print control unit 101 (step S13).

If the number of stencil sheets 210 that have been made and wrapped around the plate cylinder 31 detected in step S7 is one, the control device 100 controls the plate discharge section 6 to unwind the stencil sheets 210 around the plate cylinder 31. After removing the first stencil paper 220, the stencil making unit 2 is controlled to perform solid stencil making on the first stencil paper 220 and to make a printing image on the second stencil paper 230 (step S9). After that, a print job is started by the print control unit 101 (step S13).

If the number of stencil sheets 210 that have been made and wrapped around the plate cylinder 31 detected in step S7 is two, the print control unit 101 determines that the print image to be executed in the new print job is , it is determined whether or not the first stencil paper 220 wound around the plate cylinder 31 falls within the range of solid plate making (step S10).

If it is determined that the print image to be printed in a new print job falls within the range of solid plate making of the first stencil paper 220 wound around the plate cylinder 31, the control device 100 causes the plate discharge unit 6 to After controlling and removing the second stencil paper 230, the stencil making section 2 is controlled to make the second stencil paper 230 (step S11). After that, a print job is started by the print control unit 101 (step S13).

If it is determined that the size of the print image or the size of the paper to be printed in a new print job does not fall within the range of solid plate making of the first stencil paper 220 wound around the plate cylinder 31 (in other words, , when it is determined that the print image to be executed in a new print job does not fall within the range of solid stencil making of the first stencil paper 220 wound around the plate cylinder 31), the control device 100 controls the stencil discharging process. After controlling the unit 6 to remove the first stencil paper 220 and the second stencil paper 230, the stencil making unit 2 is controlled to perform solid plate making on the first stencil paper 220 and to make a printing image on the second stencil paper 230. (Step S12). After that, a print job is started by the print control unit 101 (step S13).

After the print job is finished (step S14), the print control unit 101 determines whether the received print job remains (step S15). If it is determined that the accepted print job remains, the process returns to step S2, and it is determined whether the print mode to be executed with the received print job is a normal print job or a double roll print mode. . Further, if it is determined that there are no accepted print jobs remaining, the printing control of the stencil printing apparatus 1 is ended.

In addition, in step S6 and step S12, when the first stencil paper 220 and the second stencil paper 230 are removed, it is performed as follows. That is, first, the control device 100 controls the drive device 75 to move the second stencil paper 230 to a position where the second clamp 36 that attaches the second stencil sheet 230 to the plate cylinder 31 faces the drawing roller 61 of the plate discharge section 6. Rotate the barrel 31. Then, the control device 100 controls the opening/closing device 74 to open the second clamp 36, remove the second stencil paper 230 from the plate cylinder 31, and remove one end of the second stencil paper 230 held by the second clamp 36. It is held by the drawing roller 61. Next, the control device 100 controls the drive device 75 to bring the first stencil paper 220 to a position where the first clamp 35, which attaches the first stencil sheet 220 to the plate cylinder 31, faces the drawing roller 61 of the plate discharge section 6. Rotate 31. Then, the control device 100 controls the opening/closing device 74 to open the first clamp 35 and remove the first stencil paper 220 from the plate cylinder 31, and one end of the first stencil paper 220 that was clamped by the first clamp 35. is held by the pull-in roller 61. Next, the control device 100 controls the drive device 75 to rotate the plate cylinder 31 with one end of the first stencil paper 220 and one end of the second stencil paper 230 held by the pull-in roller 61. The stencil paper 220 and the second stencil paper 230 are simultaneously drawn into the stencil discharge section 6 and wound up by the winding roller 63.

According to the stencil printing apparatus 1 of this embodiment, the following effects can be achieved.

The stencil printing apparatus 1 includes a stencil paper detection unit 72, which is an example of a stencil number acquisition unit, that detects the number of stencil sheets 210 that have been made and are wound around the plate cylinder 31, and the control device 100 controls the stencil paper detection unit 72, which is an example of a stencil number acquisition unit. The stencil making section 2, the printing section 3, and the stencil discharging section 6 are controlled based on the number of stencil sheets 210 that have been made and detected by the printing section 72. With such a configuration, optimal control can be performed according to the number of stencil sheets 210 that have been made and wrapped around the plate cylinder 31, thereby providing a stencil printing apparatus 1 that can prevent delays in the start of printing. can.

The control device 100 includes a first notification section 106 that notifies the number of stencil sheets 210 detected by the stencil sheet detection section 72. With such a configuration, it is possible to reduce the time required to confirm the number of stencil sheets 210, so that delays in the start of printing can be more reliably prevented.

When removing the stencil sheets 210 wound around the plate cylinder 31 from the plate cylinder 31, the control device 100 controls the drive device 75 based on the number of stencil sheets 210 detected by the stencil sheet detection section 72. With such a configuration, the time required to remove the stencil paper 210 can be reduced, so that delays in the start of printing can be more reliably prevented.

A first clamp 35 that can attach and detach one end of the first stencil paper 220 in the circumferential direction to and from the plate cylinder 31; It further includes a second clamp 36 whose one end in the circumferential direction is attachable to and detachable from the plate cylinder 31. With such a configuration, for example, in addition to the first clamp 35 and the second clamp 36, control of the plate discharge section 6 and rotation control of the plate cylinder 31 are combined, so that the first stencil paper 220 and the second stencil paper 230 can be discharged at the same time.

The control device 100 has a print control unit 101 that continuously executes a plurality of received print jobs, and this print control unit 101 is configured to print a plurality of double-wrap print jobs among the plurality of received print jobs. If included, execute double roll print jobs consecutively. With such a configuration, the number of times the stencil paper 210 is made can be reduced, so it is possible to save the stencil paper 210 and prevent a delay in the start of printing.

The control device 100 has a print control unit 101 that sequentially executes a plurality of received print jobs, and this print control unit 101 executes a first normal print job, a double roll print job, and a second normal print job. When print jobs are received in the order of jobs, the printing executed in the double roll print job is executed in the normal print mode. With such a configuration, the number of times the stencil paper 210 is made can be reduced, so it is possible to save the stencil paper 210 and prevent a delay in the start of printing.

If the print job executed immediately before is a double roll print job, the control device 100 determines the solid plate making size or the solid plate making size of the first stencil paper 220 used in the immediately previous double roll print job. The plate making unit has a solid plate making information acquisition unit 102 that acquires a solid plate making position, and based on the solid plate making size of the first stencil paper 220 acquired by the solid plate making information acquiring unit 102, or the solid plate making size and the solid plate making position. 2. Control the printing section 3 and the plate discharging section 6. With such a configuration, it is possible to perform optimal control according to the size of the stencil paper 210, so that delays in the start of printing can be more reliably prevented.

The control device 100 includes a second notification unit 106 that notifies the solid plate making size of the first stencil paper 220 acquired by the solid plate making information acquisition unit 102, or the solid plate making size and solid plate making position. With such a configuration, it is possible to reduce the time required to confirm the solid stencil size of the first stencil paper 220 or the solid stencil size and solid stencil position, so that delays in printing start can be more reliably prevented.

The control device 100 accepts a normal print job as a new print job, and determines the solid plate making range of the first stencil paper 220 in which the print image to be executed in the new print job is acquired by the solid plate making information acquisition unit 102. , the first warning generation unit 103 generates a warning while suspending execution of the accepted new print job. With such a configuration, it is possible to prevent printing from being executed in the normal printing mode when printing should be executed in the double roll printing mode. As a result, inefficient stencil making of the stencil paper 210 is prevented, and while the stencil paper 210 is saved, a delay in the start of printing can be prevented.

When the first double volume print job and the second double volume print job are executed consecutively, the print control unit 101 controls the printing executed in the second double volume print job. If the printed image falls within the range of solid plate making of the first stencil paper 220 wound around the plate cylinder 31 before the start of the second double roll print job, the second double roll print job is The first stencil paper 220 used in the first double-wrap printing job is continuously used in the second double-wrap printing job without removing the first stencil paper 220 from the plate cylinder 31 before starting. . With this configuration, the first stencil paper 220 is not replaced when switching the print job from the first double-volume printing job to the second double-volume printing job. Thereby, it is possible to save the stencil paper 210 and prevent a delay in the start of printing.

The print control unit 101 is capable of making a print image of the printing performed in the normal print job onto the second stencil paper 230 when the double roll print job and the normal print job are executed consecutively. In this case, printing that would normally be performed in a print job is performed in double roll printing mode. With this configuration, when switching print jobs, if the first stencil paper 220 can be used in a newly accepted print job, the first stencil paper 220 is not replaced. Thereby, it is possible to save the stencil paper 210 and prevent a delay in the start of printing.

It further includes a plate cylinder detection section 104 that detects the type of plate cylinder 31. With such a configuration, the time required to confirm the type of plate cylinder 31 can be reduced, so that delays in the start of printing can be more reliably prevented.

The control device 100 includes a third notification unit 106 that notifies the type of plate cylinder 31 detected by the plate cylinder detection unit 104. Since the time required to confirm the type of plate cylinder 31 can be more reliably reduced, delays in the start of printing can be more reliably prevented.

If the type of plate cylinder 31 detected by the plate cylinder detection unit 104 is a double-wrap incompatible plate cylinder, the control device 100 does not perform printing in the double-wrap printing mode. With such a configuration, erroneous operations can be prevented and delays in printing start can be more reliably prevented.

If the type of plate cylinder 31 detected by the plate cylinder detection unit 104 is a double-wrap non-compatible plate cylinder, and the received new print job is a double-wrap print job, the control device 100 issues a warning. It has a second warning generating section 103 that generates a warning. With such a configuration, erroneous operations can be prevented and delays in printing start can be more reliably prevented.

The plate cylinder 31 has the first stencil paper 220 wound thereon, and a second stencil paper 230 smaller in size than the first stencil paper 220 is stacked on the outside of the first stencil paper 220 in the radial direction with respect to the rotating shaft 311. It is configured so that it can be wound, and can be installed in the stencil printing apparatus 1 in a state where only the first stencil paper 220 is wound, or in a state where the first stencil paper 220 and the second stencil paper 230 are wound. It is configured. With such a configuration, it is possible to realize the plate cylinder 31 that is compatible with the double-wrap printing mode.

The plate cylinder 31 further includes a detection portion that allows the stencil printing apparatus 1 to detect whether or not the first stencil paper 220 and the second stencil paper 230 can be wound. With such a configuration, it is possible to reduce the time required to confirm whether or not the double-wrap printing mode is compatible, thereby preventing a delay in starting printing.

The plate cylinder 31 further includes an erroneous attachment prevention member capable of preventing erroneous attachment to a stencil printing device that cannot perform printing with the first stencil paper 220 and the second stencil paper 230 wound thereon. With such a configuration, it is possible to prevent erroneous operations and delay in starting printing.

The stencil printing apparatus 1 is equipped with a base paper number acquisition unit in addition to a plate making unit 2, a printing unit 3, a plate discharge unit 6, and a control device 100. It is sufficient that the configuration is such that the plate making section 2, the printing section 3, and the plate discharging section 6 are controlled based on the number of stencil sheets 210, and other configurations can be added or deleted as desired.

For example, each of the print control section 101, solid prepress information acquisition section 102, warning generation section 103, plate cylinder detection section 104, storage section 105, and notification section 106 can be omitted as necessary. Further, it is also possible to configure the print job to be executed using control processing different from the above-described print processing.

The number of stencil sheets obtaining section is not limited to the stencil paper detecting section 72, but may be any configuration capable of obtaining the number of stencil sheets 210 wound around the plate cylinder 31. For example, the plate cylinder 31 may be provided with a memory section in which information regarding the immediately preceding print job is stored, and the number of stencil sheets 210 wound around the plate cylinder 31 may be obtained from the information stored in this memory section. good. Information about the plate cylinder 31 including an identification code is stored in advance in the storage section of the plate cylinder 31, and the number of stencil sheets 210 wound around the plate cylinder 31 is obtained from the information about the plate cylinder 31. Good too. Further, the number of stencil sheets 210 wound around the plate cylinder 31 is obtained from information regarding the immediately preceding print job stored in the storage unit 105 of the control device 100 and information regarding the plate cylinder 31 including the identification code. Good too.

The attachment members are not limited to the clamps 35 and 36, but may be any member that can attach and detach the stencil paper 210 that has already been made.

The positions of the first clamp 35 and the second clamp 36 are not limited to those in the embodiment described above. For example, the positions of the first clamp 35 and the second clamp 36 may be exchanged, or the first clamp 35 and the second clamp 36 may be arranged side by side in the radial direction with respect to the rotating shaft 311.

The notification unit 106 also serves as a first notification unit, a second notification unit, and a third notification unit, but the invention is not limited to this, and independent components corresponding to each of the first to third notification units may be provided. good. Similarly, although the warning generating section 103 serves as a first warning generating section and a second warning generating section, the present invention is not limited to this, and independent components corresponding to each of the first and second warning generating sections are provided. It's okay.

By appropriately combining any of the various embodiments or modifications described above, the effects of each can be achieved. In addition, combinations of embodiments, combinations of examples, or combinations of embodiments and examples are possible, and combinations of features in different embodiments or examples are also possible.

The present invention has great industrial utility value because it can provide a stencil printing device that can smoothly convey unprinted paper to a paper discharge section without complicating the configuration and work procedure.

1 Stencil printing device 2 Plate making section 3 Printing section 4 Paper feeding section 5 Paper discharging section 6 Plate discharging section 7 Operation section 10 Apparatus main body 11 Stencil paper roll 21 Thermal head 31 Plate cylinder 311 Rotating shaft 312 Outer surface 32 Pressing roller 33 Ink supply roller 34 Body part 341 Ink passage area 35, 36 Clamp 51 Paper ejection tray 61 Pulling roller 63 Take-up roller 71 Image reading device 72 Mnemote paper detection section 73 Display section 74 Opening/closing device 75 Drive device 100 Control device 101 Printing control section 102 Solid plate making Information acquisition unit 103 Warning generation unit 104 Plate cylinder detection unit 105 Storage unit 106 Notification unit 121, 131 Plate making range 200 Paper 210 Stencil paper 220 First stencil paper 221 Solid plate making range 230 Second stencil paper

Claims (19)

A plate-making department that makes stencil sheets;
a printing unit capable of printing paper, the printing unit having a plate cylinder around which the stencil paper produced by the plate-making unit is wound around the outer circumferential surface of the rotating shaft;
comprising: a plate discharge unit that removes the stencil paper wound around the plate cylinder from the plate cylinder; and a control device that controls each of the plate making unit, the printing unit, and the plate discharge unit;
The stencil paper includes a first stencil paper and a second stencil paper smaller in size than the first stencil paper,
The stencil plate is configured such that the second stencil paper can be wrapped around the first stencil paper in a state in which the first stencil paper is wound on the printing cylinder so as to overlap the second stencil paper on the outer side of the first stencil paper in the radial direction with respect to the rotation axis. A printing device,
comprising a stencil number acquisition unit that acquires the number of stencil sheets wound around the plate cylinder;
The stencil printing apparatus, wherein the control device controls the plate making section, the printing section, and the plate discharging section based on the number of stencil sheets acquired by the stencil number acquisition section. The control device includes:
The stencil printing apparatus according to claim 1, further comprising a first notification section that notifies the number of stencil sheets acquired by the stencil number acquisition section. further comprising a drive device that rotates the plate cylinder around the rotation axis,
The plate discharging unit is
The stencil paper wound around the printing cylinder is configured to be able to hold one circumferential end of the stencil sheet with respect to the rotating shaft, and the printing cylinder is rotated by the driving device while holding the one circumferential end, and the printing cylinder is rotated by the driving device. The stencil paper wound around the plate cylinder is removed by the stencil discharge unit pulling in the stencil paper;
The control device includes:
3. When removing the stencil paper wound around the plate cylinder from the plate cylinder, the drive device is controlled based on the number of stencil sheets acquired by the number of stencil sheets acquisition unit. stencil printing equipment. a first mounting member capable of attaching and detaching one end of the first stencil paper in the circumferential direction to and from the plate cylinder;
further comprising a second attachment member capable of attaching and detaching one end of the second stencil paper in the circumferential direction to and from the plate cylinder;
When each of the first stencil paper and the second stencil paper is attached to the plate cylinder, the second stencil paper covers the first mounting member,
When removing the first stencil sheet and the second stencil sheet attached to the printing cylinder, the driving device rotates the printing cylinder and removes the second mounting member and the first mounting member in this order. One end in the circumferential direction of the second stencil sheet, which is attached to the plate cylinder by the second attachment member and facing the plate discharge part, is removed from the plate cylinder and held in the plate discharge part, and the first One circumferential end of the first stencil sheet attached to the plate cylinder by an attachment member is removed from the plate cylinder and held by the plate discharge section, and the plate cylinder is rotated to transfer the first stencil paper to the plate discharge section. 4. The stencil printing apparatus according to claim 3, wherein the stencil sheet is pulled in. The printing modes include a normal printing mode in which printing is performed with only the first stencil paper on which the printing image has been made, wound around the plate cylinder, and a normal printing mode in which printing is performed with only the first stencil paper on which the printing image has been made, and a normal printing mode in which printing is performed with only the first stencil paper on which the printing image has been made, and the printing mode in which printing is performed with only the first stencil paper on which the printing image has been made. a double-wrap printing mode in which printing is performed in a state where the first stencil paper and the second stencil paper on which the printing image is made are wound;
The print job includes a normal print job in which printing is executed in the normal print mode and a double-roll print job in which printing is executed in the double-roll print mode.
A stencil printing apparatus according to any one of claims 1 to 4. Before the start of the print job, if the immediately preceding print job is the normal print job, the first stencil paper is removed from the plate cylinder by the plate discharge unit, and the immediately preceding print job is In the print mode, only the second stencil paper or both the first stencil paper and the second stencil paper are removed from the plate cylinder by the plate discharge unit;
The control device includes:
comprising a print control unit that continuously executes the plurality of received print jobs;
The print control unit includes:
6. The stencil printing apparatus according to claim 5, wherein when a plurality of said double roll printing jobs are included in the plurality of received print jobs, said double roll printing jobs are executed continuously. Before the start of the print job, if the immediately preceding print job is the normal print job, the first stencil paper is removed from the plate cylinder by the plate discharge unit, and the immediately preceding print job is If the mode is print mode, only the second stencil paper or both the first stencil paper and the second stencil paper are removed by the plate discharge unit;
The control device includes:
comprising a print control unit that continuously executes the plurality of received print jobs;
The print control unit includes:
When print jobs are received in the order of the first normal print job, the double roll print job, and the second normal print job, the printing performed in the double roll print job is executed in the normal print mode. The stencil printing apparatus according to claim 5. The control device includes:
If the immediately preceding print job is the double-volume printing job, the solid plate-making size of the first stencil paper used in the immediately preceding double-volume printing job, or the solid plate-making size and solid plate-making It has a solid plate making information acquisition section that acquires the position,
Based on the solid plate making size of the first stencil paper acquired by the solid plate making information acquisition unit, or based on the solid plate making size and solid plate making position of the first stencil paper, the plate making unit, the printing unit and The stencil printing apparatus according to any one of claims 5 to 7, wherein the stencil printing apparatus controls the plate discharge section. The control device,
9. The stencil printing apparatus according to claim 8, further comprising a second notification section that notifies the solid stencil size of the first stencil paper acquired by the solid stencil information acquisition section, or the solid stencil size and solid stencil position. The control device includes:
The normal print job is accepted as the new print job, and the print image to be executed in the new print job falls within the solid plate making range of the first stencil sheet acquired by the solid plate making information acquisition unit. 10. The stencil printing apparatus according to claim 8, further comprising a first warning generating section that generates a warning while suspending execution of the new accepted print job if there is no new print job. The control device includes a print control unit that sequentially executes the plurality of received print jobs,
The double volume print job includes a first double volume print job and a second double volume print job,
The print control unit includes:
In the case where the first double volume print job and the second double volume print job are executed consecutively, the print image of the printing performed in the second double volume print job is , if the first stencil paper wound on the plate cylinder falls within the range of solid plate making before the second double roll printing job is started, the start of the second double roll printing job; continuously using the first stencil paper used in the first double-wrap printing job in the second double-wrap printing job without previously removing the first stencil paper from the plate cylinder; The stencil printing apparatus according to any one of claims 6 to 10. The control device includes a print control unit that sequentially executes the plurality of received print jobs,
The print control unit includes:
The case where the double roll print job and the normal print job are executed consecutively, and the print image of the printing performed in the normal print job is the first print image used in the double roll print job. The stencil printing apparatus according to any one of claims 6 to 11, wherein printing executed in the normal printing job is executed in the double roll printing mode when the printing falls within the range of solid plate making of stencil paper. further comprising a plate cylinder detection unit that detects the type of the plate cylinder,
The plate cylinder includes a double-wrap compatible plate cylinder in which the first stencil paper and the second stencil paper can be wound, and a double-wrap non-compatible plate cylinder in which only the first stencil paper can be wound. The stencil printing apparatus according to any one of claims 1 to 12. The control device includes:
14. The stencil printing apparatus according to claim 13, further comprising a third notification section that notifies the type of the plate cylinder detected by the plate cylinder detection section. The control device includes:
Claim 13 dependent on claim 5, wherein when the type of the plate cylinder detected by the plate cylinder detection unit is the double-wrap non-compatible plate cylinder, printing is not performed in the double-wrap printing mode. 14 stencil printing devices. The control device includes:
If the type of the plate cylinder detected by the plate cylinder detection unit is the double-wrap non-compatible plate cylinder, and the new print job that has been accepted is the double-wrap print job, the new print job that has been accepted is 16. The stencil printing apparatus according to any one of claims 13 to 15 dependent on claim 5, further comprising a second warning generating section that issues a warning while suspending the print job. A plate cylinder of a stencil printing device, in which a pre-screened stencil paper is wrapped around the outer peripheral surface around a rotating shaft,
With the first stencil paper being wound, a second stencil paper smaller in size than the first stencil paper can be stacked and wound on the outside of the first stencil paper in the radial direction with respect to the rotation axis;
configured to be able to be installed in the stencil printing apparatus in a state in which only the first stencil paper is wound, or in a state in which the first stencil paper and the second stencil paper are wound ;
A plate cylinder comprising a detection portion that allows the stencil printing apparatus to detect whether or not the first stencil paper and the second stencil paper can be wound. A plate cylinder of a stencil printing device, in which a pre-screened stencil paper is wrapped around the outer peripheral surface around a rotating shaft,
With the first stencil paper being wound, a second stencil paper smaller in size than the first stencil paper can be stacked and wound on the outside of the first stencil paper in the radial direction with respect to the rotation axis;
configured to be able to be installed in the stencil printing apparatus in a state in which only the first stencil paper is wound, or in a state in which the first stencil paper and the second stencil paper are wound;
A plate cylinder comprising an erroneous attachment prevention member capable of preventing erroneous attachment to the stencil printing device in which printing cannot be performed with the first stencil paper and the second stencil paper wrapped . A plate cylinder of a stencil printing device, in which a pre-screened stencil paper is wrapped around the outer peripheral surface around a rotating shaft,
With the first stencil paper being wound, a second stencil paper smaller in size than the first stencil paper can be stacked and wound on the outside of the first stencil paper in the radial direction with respect to the rotation axis;
configured to be able to be installed in the stencil printing apparatus in a state in which only the first stencil paper is wound, or in a state in which the first stencil paper and the second stencil paper are wound;
a detected portion capable of causing the stencil printing device to detect whether or not the first stencil paper and the second stencil paper can be wrapped;
an erroneous attachment prevention member capable of preventing erroneous attachment to the stencil printing device in which printing cannot be performed with the first stencil paper and the second stencil paper wrapped;
A plate cylinder comprising.

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