JPH09104157A - Screen type plate making printing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach the unused master remaining on a plate supply roll to a plate discharge roll or to perform the replacement of the plate supply roll without contaminating the periphery of a printer or the hand of a worker with the ink bonded to the plate supply or discharge roll when the plate supply roll and the plate discharge roll are replaced when the master wound around a printing drum becomes abnormal. SOLUTION: In a screen type plate a printing drum 5, a drum driving means, an ink supply means 29, a master supply part (2s, 66), thermal head 4, a waste plate taking-up part (9, 67), a plate supply unit 68 and a plate discharge unit 69, in such a state that a master 1 is wound around the printing drum 5 is cut between the master supply part (2s, 66) and the position begin to wind the master 1 on the outer peripheral surface of the printing drum 5 by a cutter 94.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stencil type plate making and printing apparatus of a plate making and printing type which prints image information on a recording medium such as printing paper by a scanner, a personal computer, a facsimile or the like.

[0002]

2. Description of the Related Art In a plate making section and a plate making section of a conventional stencil printing machine, a stencil master obtained by sticking a porous support such as Japanese paper to a thermoplastic resin film is formed from a plate making roll formed in a roll shape. The stencil master is fed and conveyed while being pressed against the thermal head by the platen roller to heat-perforate stencil making, and is further sent to the printing drum by a conveying roller or the like, and the end of the stencil master or the stencil master is clamped on the printing drum. After the completion of plate making, the trailing end of the plate-making master or the stencil master is cut by a cutting unit such as a cutter unit, and each plate is wound around the outer circumference of the printing drum.

By the way, the conventional stencil master has a thickness of 1 to
It has a laminated structure in which a thermoplastic resin film made of a very thin polyester of about 2 μm is laminated with Japanese paper fibers or synthetic fibers as a porous support or a mixture of Japanese paper fibers and synthetic fibers. There is. In the conventional stencil printing apparatus, the ink is printed by passing between the Japanese paper fibers that are the porous support as described above and transferring from the perforated portion of the film to the printing paper, In the perforated part, when the above-mentioned support fibers are intricately entangled in a lump or when a thick fiber is crossed, the passage of ink is obstructed and the ink is not transferred properly to the printing paper There is a problem that the image quality deteriorates due to the phenomenon commonly known as fiber stitches, in which characters or thin lines are cut or faint.

Therefore, in order to reduce the number of fibers, improve print quality, and reduce the cost of the plate itself,
A master obtained by removing the porous support from the stencil master, thinning the porous support, or a master consisting essentially of a thermoplastic resin film having no porous support (hereinafter, simply referred to as " Attempts have been made to use the "master"). However, in such a master, since the waist itself is weak, the conveyance becomes unstable and jams frequently occur.Therefore, the conventional method of feeding and conveying the plate using the strength of the master's own waist as described above. Will be difficult to employ.

[0005] In order to solve such a problem,
For example, the stencil printing apparatus disclosed in Japanese Patent Publication No. 5-70595 is considered to be effective. That is, the stencil printing machine is intended to be wound around the outer circumference of the printing drum (plate cylinder) without cutting the master (stencil sheet) to eliminate transport troubles and to reduce the size of the machine. A plate cylinder and a plate discharge unit (a plate supply unit and a plate discharge unit or a plate discharge unit) which are arranged close to the outer periphery of the peripheral wall of the plate cylinder and can rotate relative to the peripheral wall. , The master is supplied from the plate feed roll of the base paper supply unit (master supply unit) that constitutes the plate discharge unit, and the master is cut while being wound by the winding shaft of the plate discharge roll in the plate discharge winding unit that constitutes the plate discharge unit. Plate making, plate feeding, without
Printing and plate ejection are performed.

Therefore, there is a fundamental problem with the stencil printing apparatus, namely, during printing, the plate supply roll of the master supply unit, the plate discharge roll of the plate discharge winding unit, their drive unit, the platen roller, and the thermal head. However, since all of them rotate with the printing drum, the inertia becomes large, high-speed printing is not possible, and there is a risk of vibration, and the signal line to the thermal head and roller drive motor, the connector of the power supply line, etc. As an improvement of the point that the reliability of the operation is lowered due to frequent attachment and detachment operations, the applicant of the present application has disclosed, for example, in Japanese Patent Laid-Open Nos. 6-270524 and 7-52513, a plate feeding arm and a plate discharge. A double-arm (double unit) type stencil-type plate making / printing apparatus provided with an arm, or in Japanese Patent Laid-Open No. 7-47755, Single arm with an arm (single unit) type stencil type plate-making printing machine, or in Japanese Patent Laid-Open 6-328831, JP-plate feed arm (the plate feed unit 80), the plate discharge means 1 supported by the printing apparatus
00, a cutter unit 150, a clamper 19 and the like, and a new technique such as a single-arm type stencil-type plate-making printing apparatus was proposed.

[0007]

However, in each of the above new techniques including the technique disclosed in Japanese Patent Publication No. 5-70595, a master is interposed between the print drum and the press roller when a jam of printing paper is processed. By applying an external force to pull out the printing paper while the printing paper is pressed against the master, the master wound around the printing drum may be rolled or folded. In such a state, when the master is wound around the plate discharge roll, the outer peripheral surface of the plate discharge roll becomes uneven, so that wrinkles occur in the master wound around the printing drum.
For this reason, in order to remove the wrinkles of the master on the printing drum, it is necessary to remove the plate discharge roll from the plate discharge winding section and replace it.However, the master is in a state of being wrapped around the print drum, and the plate is discharged from the plate supply roll. Since the master is connected to the rolls, it is necessary to simultaneously remove and attach the plate supply roll and the plate discharge roll while peeling off the master that is wound around the printing drum and has the ink attached thereto. If the master cuts during plate making, plate discharge, or printing, the ink will be attached to the used master once used for printing, so be careful when removing and replacing the plate discharge roll or plate supply roll. If this is not done, there is a problem that the ink adheres to the periphery of the printing drum or the hands of the replacement operator, and the area around the printing drum and the hands of the replacement operator become dirty.

Further, in order to use the unused master wound on the plate feed roll removed, be careful not to stain the unused master and the like and the periphery of the printing drum with the ink adhering to the master plate. It is troublesome that the ink portion adhering to the master must be removed before use.

Therefore, in order to solve such a problem, according to the present invention, when the master wound around the printing drum is in an abnormal state and the plate supply roll and the plate discharge roll are replaced, the present invention attaches to the plate supply roll and the plate discharge roll. A stencil-type plate making and printing machine that allows the unused master remaining on the plate supply roll to be attached to the plate discharge roll or a new plate supply roll to be replaced without soiling the surroundings of the printing device or the hands of workers, etc. The purpose is to provide.

[0010]

In order to achieve the above-mentioned object, a first aspect of the present invention comprises a printing drum around which a master is wound around an outer peripheral surface, and a drum driving means for rotationally driving the printing drum. An ink supply unit for supplying ink to the inner peripheral surface of the printing drum, a master supply unit for supplying the master to the printing drum, a plate making unit for plate making the master, and a used master from the outer peripheral surface of the printing drum. A stencil plate making and printing apparatus comprising: a plate discharging unit for separating and discharging a plate, and a plate supplying / discharging unit having at least the master supply unit, rotatable about the rotation center axis of the printing drum with respect to the printing drum. In the state in which the master is wound around the print drum, the master is fed to the master supply unit and the outer peripheral surface of the print drum at the winding start position of the master. It characterized by having a master cutting means for cutting between.

According to a second aspect of the present invention, in the stencil plate making and printing apparatus according to the first aspect, the plate discharging means is a discharging plate winding section for winding the used master, which is arranged in the plate supplying / discharging unit. It is characterized by

According to a third aspect of the present invention, in the stencil plate making and printing apparatus according to the second aspect, a plate discharge roll shaft for winding the used master into a roll to form a plate discharge roll is provided in the plate discharge winding section. And has a plate discharge roll shaft driving means for rotating the plate discharge roll shaft, and a control means for controlling the drive of the drum driving means and the plate discharge roll shaft driving means based on a signal that the master is cut. After the master is cut by the master cutting means, one of the masters wound and cut on the printing drum is automatically wound around the plate discharge roll shaft.

According to a fourth aspect of the present invention, in the stencil plate making and printing apparatus according to the first aspect, the plate discharging means is provided on the outer peripheral surface of the printing drum, and the leading end of the master is the outer peripheral surface of the printing drum. An openable and closable clamper sandwiched between the plate and the plate, a plate discharge storing unit that is supported on the device body side and stores the used master by peeling it from the outer peripheral surface of the printing drum, and a plate discharge supported on the device body side. It is characterized in that it comprises a cutting means provided in the vicinity of the storing means for cutting the peeled master peeled from the outer peripheral surface of the printing drum.

According to a fifth aspect of the present invention, in the stencil plate making and printing apparatus according to the first aspect, the plate discharging means includes openable and closable clamp means for holding the leading end portion of the master, and the rotation center axis. A clamper unit that is rotatable with respect to the printing drum and the plate supply / discharge unit and that has the clamp means, and a used discharge master that is supported by the main body of the apparatus and separates and stores the used master from the outer peripheral surface. And means.

According to a sixth aspect of the present invention, in the stencil printing plate making apparatus according to the fourth or fifth aspect, the plate discharge accommodating means is provided with a pair of plate discharge rollers which rotate in pressure contact with each other. The master includes a plate discharge roller driving unit that rotates a roller, and a control unit that controls the driving of the drum driving unit and the plate discharge roller driving unit based on a signal that the master is cut. After being cut, the master, which is one of the cut and wound around the printing drum, is automatically peeled off and stored.

The invention according to claim 7 is the first to sixth aspects of the present invention.
In the stencil plate making printing apparatus according to any one of the above, the master cutting unit, a cutting position for cutting the master between the master supply unit and the winding start position of the master on the outer peripheral surface of the printing drum; The cutting means displacing mechanism for displacing the master cutting means between the cutting position and the non-cutting position separated from the cutting position is provided on the apparatus main body side. Characterize.

The invention described in claim 8 is the invention as claimed in claims 1 to 7.
In the stencil plate making / printing apparatus described in any one of the above ones, a master pressing mechanism for pressing the master is disposed in the vicinity of the cutting portion of the master.

According to a ninth aspect of the present invention, in the stencil printing plate making apparatus according to the eighth aspect, the master pressing mechanism is
Holding means provided in the vicinity of the master cutting means for holding the master before being cut, and the master before cutting provided in the vicinity of the cutting portion of the plate feeding and discharging unit as the holding means It is characterized in that it comprises a means to be held between and.

According to a tenth aspect of the present invention, in the stencil plate making and printing apparatus according to the ninth aspect, the pressing means includes upstream and downstream sides of the cutting portion in the rotational direction of the printing drum rotated during plate ejection. In the above, the pressed means is
It is characterized in that it is provided on each of the upstream side and the downstream side in the cutting portion.

According to an eleventh aspect of the present invention, in the stencil plate making and printing apparatus according to the ninth aspect, the pressing means is located upstream of the cutting portion in the rotational direction of the printing drum rotated during plate ejection. The pressed means is provided at least on the upstream side of the cutting portion.

[0021]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

(Embodiment 1) FIG. 1 is a schematic view of the essential parts of a stencil plate-making / printing apparatus showing an embodiment 1 of the present invention.
Example 1) according to the invention described in Nos. 10 to 10).

In FIG. 1, reference numeral 600 indicates a stencil-type plate-making / printing apparatus. Reference numeral 601 denotes a stencil-type plate making and printing apparatus 600.
2 shows a frame arranged at a predetermined position. This stencil-type plate-making printing apparatus 600 supports a print drum 5 which is supported by a frame 601 and which is wound around the outer peripheral surface of the print drum and rotates around a rotation center axis 6, and an ink on the inner peripheral surface of the print drum 5. Ink supplying means 29 for supplying, plate supplying roll shaft supporting means 66 for supporting the core tube 2s of the plate supplying roll 2 for supplying the master 1 to the printing drum 5 with one end of the master 1 wound around the rotation center axis 6. Further, it is rotatable with respect to the printing drum 5, and is supported by the plate feeding unit 68 having the plate feeding roll shaft supporting means 66 and the main body side of the stencil plate making printing apparatus 600 (hereinafter, simply referred to as “apparatus main body side”). The thermal head 4 as a plate making means for making the master 1 and the used master 1 with the other end of the master 1 wound around.
The plate discharge roll shaft support means 67 that supports the winding shaft 9 of the plate discharge roll 10 that winds b from the print drum 5, and is rotatable around the rotation center axis 6 with respect to the print drum 5 and the plate supply unit 68. The master 1 is fed to the plate supply roll shaft support means 66 in a state where the master 1 is wound around the printing drum 5 and the plate discharge unit 69 having the plate discharge roll shaft support means 67.
It mainly comprises a plate feed roll 2 supported via a core tube 2s and a cutter 94 as a master cutting means for cutting between the winding start position of the master 1 on the outer peripheral surface of the printing drum 5.

The core tube 2 is attached to the plate feed roll shaft support means 66.
Hereinafter, the plate-making master 1a or the master 1 between the plate supply roll 2 supported via s and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5 will be simply referred to as “master 1
Sometimes it is called "M".

As described above, the master supply section for supplying the master 1 to the printing drum 5 is composed of the core tube 2s and the plate supply roll shaft support means 66. The plate discharging means for separating the used master 1b from the outer peripheral surface of the printing drum 5 and discharging the plate is composed of a winding shaft 9 and a plate discharging roll shaft supporting means 67.

The plate supply unit 68 includes the master supply section,
A pair of plate feeding arms 7a and 7b, a platen roller 3, a gear 30, a cutter support 91, and a plate feeding friction clutch 1 which will be described later.
5 and the balancer weight 64A.

The plate discharge unit 69 includes the plate discharge means, a plate discharge arm pair 8a and 8b, a plate supply / discharge plate arm joining means 40, a plate discharge roll gear 51, and a plate discharge friction clutch 16, which will be described later.
And a balancer weight 64B.

The plate supply roll shaft support means 66 will be described later.
It is composed of the attachment / detachment groove 7h and the brake unit 26 (see FIG. 2).

The plate discharge roll shaft support means 67 will be described later.
It is composed of a roll drive shaft 52 and a slide shaft 53 (see FIG. 10).

The printing drum 5, the core tube 2s of the plate supply roll 2, the plate supply roll shaft support means 66, the platen roller 3, which will be described later, the plate supply unit 68, the winding shaft 9 of the plate discharge roll 10, and the plate discharge roll shaft support. The unit 67, the plate discharge unit 69, and the ink supply unit 29 constitute a drum unit 65, and the drum unit 65 is connected to the frame 60 from the apparatus main body side.
It is detachable via a detaching mechanism (not shown) via 1 (see FIG. 5).

Hereinafter, the printing drum 5 and the ink supply means 2
9. Configuration around thermal head 4, components of plate feeding unit 68, components of plate discharging unit 69, and cutter 94
The surrounding structure will be sequentially described.

In FIG. 5, the outer periphery of the printing drum 5 is
A supporting cylinder 5a having a large number of ink-permeable holes 5h formed around substantially the entire periphery except for both side edges is provided, and an ink-permeable mesh is provided on the outer peripheral surface of the supporting cylinder 5a. The screen 5b is wound, and the printing drum 5 has a known structure. The mesh screen 5b
Are only shown in the figure. Needless to say, the printing drum is not limited to the printing drum 5 as described above, and may be a known one having a non-printing area where the opening 5h is not formed over substantially the entire circumference.

In FIGS. 2 and 5, both side ends of the support cylinder 5a and the mesh screen 5b are disc-shaped drum flange portions 12 arranged with the both side ends sandwiched therebetween.
It is attached to the outer peripheral portions of a and 12b. The printing drum 5 is rotatably supported by a rotation center shaft 6 via bearings 14 on drum shafts 13a and 13b integrally formed at the central bases of the drum flange portions 12a and 12b, respectively. It is driven in the direction of the double arrow by the driving means 70.

On both drum shafts 13a and 13b, a pair of plate feeding arms 7a and 7b are provided inside the printing drum 5 with the printing drum 5 interposed therebetween.
A pair of plate discharge arms 8a and 8b (hereinafter, referred to as “plate discharge arm pair 8a and 7b”) via the plate plate friction clutch 15 (hereinafter referred to as “plate discharge arm pair 8”).
a, 8b ") is a friction clutch 1 for plate ejection.
Each of them is rotatably arranged with respect to the rotation center shaft 6 via the shaft 6. The base of the plate feeding arm 7b is connected to the drum shaft 13b via the plate feeding friction clutch 15 and the plate discharging arm 8b.
The base portion of the drum shaft 13 via the friction clutch 16 for plate discharge
b. A drum gear 17 is integrally formed on one end side of the drum shaft 13b. The plate feeding friction clutch 15 is used for the unused plate feeding roll 2 as described later.
At the time of initial setting and printing of U, the plate feeding arm 7b and the drum shaft 13b are connected and rotated integrally, while the plate feeding arm 7b and the drum shaft 13b are disconnected at the time of plate making and plate ejection. Each is set. As will be described later, the plate-release friction clutch 16 is used for the plate-release arm 8 during printing.
b and the drum shaft 13b are connected and rotated integrally, while the plate discharge arm 8b and the drum shaft 13b are used at the time of plate making and plate discharge.
Each is set to disconnect from. In addition,
Friction clutch 15 for plate feeding and friction clutch 16 for plate ejection
Are manually disengaged for manual handling during a jam.

The printing drum 5 is provided outside the drum gear 17.
A drum driving means 70 for rotating and driving is provided.
The drum drive means 70 is fixed to one end of a drum drive motor M19 fixed to a side plate (not shown) on the apparatus main body side and a drum drive shaft 18 of the drum drive motor M19 rotatably supported by the side plate. The drive gear 19 is mainly included. The drive gear 19 is adapted to selectively mesh with the drum gear 17 only when the drum unit 65 is mounted in the direction of arrow C in the figure.

In FIG. 5, the rotation center shaft 6 is provided on the base side of each plate feeding arm 7a, 7b and each plate discharging arm 8a, 8b.
Balancer weights 64A, 6 made of a material of specific importance for maintaining rotational balance in a substantially symmetrical position via
4B is fixed. Balancer weight 64A, 64
B is a plate feeding arm pair 7a, 7b and a plate discharging arm pair 8a,
It is arranged so as not to interfere when 8b rotates. The balancer weights 64A and 64B are substantially fan-shaped, and their sizes and weights are set so as to balance the rotational moment components of the plate supply unit 68 and the plate discharge unit 69 with respect to the rotation center axis 6. As will be described later, in the printing process, the printing drum 5, the plate supply unit 68, and the plate discharge unit 69 integrally rotate at high speed. At this time, as described above, the balancer weights 64A, 64A
Since B is provided, the rotation balance of the integrated body as a whole is improved and the load fluctuation during rotation is reduced, so that more stable high-speed printing can be performed. The balancer weights 64A and 64B are shown only in FIG.

In FIG. 1, an ink supply means 29 is provided inside the printing drum 5, and an ink roller 20 for supplying ink to the inner peripheral surface of the printing drum 5, that is, the inner peripheral surface of the support cylinder 5a, and the ink roller 20. The doctor roller 22 is arranged in parallel with the roller 20 with a small gap and forms an ink reservoir 21 between the roller 20 and the ink roller 20, and also serves as the rotation center shaft 6 of the printing drum 5 and supplies ink to the ink reservoir 21. And an ink supply pipe 6 for

The printing drum 5 facing the ink roller 20
A press roller 11 is rotatably provided around the shaft 11s near the lower portion of the outer peripheral surface of the. The shaft 11s is supported by a pair of arms 23, 23 arranged at both ends of the shaft, and the arms 23, 23 are swingable around a shaft 23s attached to a side plate (not shown) on the apparatus body side. It is supported. The press roller 11 is a printing position where the printing drum 5 is pressed against the printing drum 5 via the printing paper P at the time of printing, an unused plate feeding roll 2U and a used master 1b are wound up to the end when not printing, and the plate discharge state is full. In order to avoid contact with the protruding portions of the roll 10 (shown by phantom lines) and the platen roller 3 and the like, the non-printing position separated from the outer peripheral surface of the printing drum 5 is selectively occupied. Axis 23
A known paper feeding device is arranged near s. This sheet feeding device is rotated by a sheet feeding table 88 on which sheets P are stacked and a driving force from a motor (not shown),
Paper feed roller 89 that conveys the uppermost sheet P stacked on No. 8 to the downstream side in the sheet conveyance direction, and the uppermost sheet stacked on the paper feed tray 88 by applying a pressing force from the back surface of the paper feed tray 88. A compression spring 87 that presses P against the paper feed roller 89, and a pair of upper and lower resists that convey the print paper P fed by the paper feed roller 89 between the print drum 5 and the press roller 11 at a predetermined timing. The roller pair 24a and 24b, the print drum 5 and the press roller 11 which are arranged between the sheet feeding roller 89 and the registration roller pair 24a and 24b and above and below the nip portion of the registration roller pair 24a and 24b.
And a pair of upper and lower guide plates 25a and 25b for guiding the printing paper P between them.

In FIGS. 1, 2 and 3, the master 1 is made of a very thin 3 μm thick substantially thermoplastic resin film, and is wound around a small diameter core tube 2 s of the plate feed roll 2 in a continuous sheet form. There is. An antistatic agent is applied to the contact surface of the master 1 with the thermal head 4. Here, the master consisting essentially of a thermoplastic resin film, in addition to those in which the master consists of only a thermoplastic resin film, those containing a trace amount of components such as an antistatic agent in the thermoplastic resin film, Both main surfaces of the thermoplastic resin film,
That is, it includes one formed by forming one or more thin film layers such as an overcoat layer on at least one of the front surface and the back surface. The core tube 2s is made of a synthetic resin pipe.

At the free ends of the plate feeding arm pairs 7a and 7b,
Core tube 2s of plate feeding roll 2 or unused plate feeding roll 2U
U-shaped attaching / detaching grooves 7h for attaching / detaching are respectively formed. A brake unit 2 that applies a predetermined braking force to the core tube 2s at each end of the plate feed roll 2 is provided in each attachment / detachment groove 7h.
6 are provided respectively, the plate feed roll 2 is rotatably and detachably supported by both brake units 26 via core tubes 2s at both ends, and the plate feed rolls 7a and 7b are rotated. It is supported so as not to come off from the brake unit 26 due to its inertia when moving. Therefore, a predetermined braking force is constantly applied to the core tubes 2s at both ends of the plate feed roll 2, and a constant tension is always applied to the master 1 pulled out from the plate feed roll 2. Since the master 1 substantially consists of the thermoplastic resin film, the outer diameter of the plate feed roll 2 is significantly smaller than that of the conventional one.

A platen for feeding the master 1 supplied from the plate feeding roll 2 around a part of its peripheral surface around the plate feeding arm pair 7a, 7b near the plate feeding roll shaft supporting means 66 and carrying it in the master carrying direction. The roller 3 has a pair of plate feeding arms 7a and 7b.
It is attached to a shaft 3s that is rotatably supported by the shaft.
The platen roller 3 is made of an antistatic material made of synthetic rubber having JIS hardness A of 40 °, and is provided so as to extend in the axial direction parallel to the rotation center axis 6. A gear 30 is fixed to one end of the shaft 3s of the platen roller 3.

In FIG. 6, reference numeral 27 indicates a platen roller drive mechanism. The platen roller drive mechanism 27 is selectively displaceable between an engagement position for engaging the gear wheel 30 of the platen roller 3 to rotate the platen roller 3 and a non-engagement position separated from the engagement position. ing. The platen roller drive mechanism 27 includes a DC motor (not shown), a plate cam 32, and a roller 33 as a cam follower, which will be described later.
a, a cam follower bracket 33, a tension spring 34, a drive gear 31, and a pulse motor 28.

A rotary drive shaft 3 is provided on the side plate on the apparatus main body side.
A DC motor (not shown) connected to 2s is provided, and a plate cam 32 is attached to this rotary drive shaft 32s. Further, a cam follower bracket 33 with a roller 33a that is in sliding contact with the contour peripheral surface of the cam 32 is provided near the cam 32 on the apparatus main body side. The cam follower bracket 33 has a shape in which arms are protruded from a triangular plate, one end of the triangular part forms a mounting portion of the roller 33a, and the base end of the cam follower bracket 33 is pivotally attached to the side plate by a shaft 33s. Has been done. Further, the protruding arm-like free end of the cam follower bracket 33 has a habit of turning in the counterclockwise direction in the drawing by a tension spring 34 having one end hooked on the side plate and the other end hooked on the free end. Has been given.
Further, at one end of the protruding arm of the cam follower bracket 33, the gear 30 fixed to the rotary drive shaft 31s thereof is provided.
A pulse motor 28 having a drive gear 31 that meshes with a predetermined timing is attached.

As shown in FIGS. 2 and 3, between the free ends of the plate feeding arm pairs 7a and 7b in the vicinity of the shaft 3s support portion of the platen roller 3, a cutter as a pressed means constituting a master pressing mechanism is provided. The cradle 91 is fixedly installed. The cutter pedestal 91 has a substantially trapezoidal cross section, is formed parallel to the shaft 3s of the platen roller 3, and is larger than the width dimension of the master 1 in the longitudinal direction of the shaft 3s. Cutter stand 9
1 is between the plate feed roll 2 supported by the plate feed roll shaft support means 66 via the core tube 2s and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5, and more specifically, the platen roller 3 It is provided in the vicinity of the cutting portion of the master 1M cut by the cutter 94 between the winding start position of the master 1 on the outer peripheral surface of the printing drum 5. The cutter receiving base 91 is made of a synthetic resin having a light weight and a predetermined strength, and is attached between the free ends of the plate feeding arm pairs 7a and 7b via a fastening means such as a screw. The platen roller 3 is provided at a substantially central portion on the slope of the cutter receiving base 91.
A groove 91a for inserting the blade of the cutter 94 is formed parallel to the shaft 3s and having a predetermined depth long in the length direction of the shaft 3s. The cutter pedestal 91 near the groove 91a on the downstream side in the master conveyance direction has a groove 9 having a predetermined depth substantially parallel to the groove 91a and long in the length direction of the groove 91a.
1b is formed. The groove 91b has a substantially arcuate concave shape, and makes it easy to grasp one end of the master 1M cut by the cutter 94 between the platen roller 3 and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5. Have a role. For example, during printing or the like, the printing paper P is jammed in a state of being sandwiched between the outer peripheral surface of the printing drum 5 and the press roller 11, and the jammed printing paper P cannot be pulled out. When it is not possible to rotate 5, that is, when it is impossible to automatically perform a master winding operation after master cutting, which will be described later, one end of the master 1M cut by the cutter 94 is easy to grasp. Therefore, if the groove 91b is provided, the operability can be improved. Further, the area around one end of the master 1M is a portion where ink does not adhere, and it is possible to remove the master 1 wound around the outer peripheral surface of the printing drum 5 by grasping one end of the master 1M without soiling the hand with ink. There is.

As described above, the cutter receiving base 91 as the pressed means is provided on both sides of the groove 91a with the groove 91a interposed therebetween, in other words, on the upstream side in the rotating direction of the printing drum 5 rotated at the time of plate discharge in the cutting portion. And downstream, respectively.

In FIG. 2, reference numeral 90 indicates a cutting means displacement mechanism. The cutting means displacement mechanism 90 is used for the platen roller 3
And a cutting position (shown by a virtual line in the figure) for cutting the master 1M between the winding start position of the master 1 on the outer peripheral surface of the printing drum 5 and a non-cutting position (a solid line in the figure) separated from the cutting position. (Shown by)) and a function of displacing the cutter 94. Therefore, the cutting means displacement mechanism 90 allows the cutter 94 to be freely displaced between the cutting position and the non-cutting position. Cutting means displacement mechanism 90
Is a DC motor M92 and a pair of cams 92, 9 which will be described later.
2. A pair of rollers 93R, 93 as cam followers
R, cam follower arm 93 and a pair of springs 9
It is mainly composed of 8,98. In addition, in FIG.
A pair of each of the above-mentioned components is arranged on the front side and the back side of the paper, but only the front side is shown for the sake of simplicity.

A drive shaft 92 is provided on each of the side plates on the apparatus main body side.
A DC motor M92 having s is fixedly installed, and a pair of cams 92, 92 are integrally attached to both ends of the drive shaft 92s. Both ends of the drive shaft 92s are rotatably supported between the side plates. Also, each cam 92,
A shaft 93s is rotatably provided between the side plates in the vicinity of 92, and the cams 92,
A cam follower arm 93 having a pair of rollers 93R, 93R as a cam follower that is in sliding contact with the contour peripheral surface of 92 is fixedly installed. The cam follower arm 93 is integrally formed with a cutting means mounting portion 93a described later, and
A substantially frame-shaped structure including 3s is formed. Mounting portions for the rollers 93R are respectively formed on both sides of one end of the cam follower arm 93, and a cutting means mounting portion 93a extending in a direction parallel to the groove 91a is fixedly provided between both ends of the cam follower arm 93. ing. Cutting means mounting portion 93
A cutter 94 extending in a direction parallel to the groove 91a is attached to a substantially central portion of a. Cam follower arm 9
Between the mounting portion of each roller 93R of 3 and the fixing portion of the shaft 93s, the other end of the tension spring 98 whose one end is hooked on the side plate is hooked, and the pair of springs 98, By 98, the cutter 94 is given a habit of turning clockwise about the shaft 93s in the drawing.

A saw blade-shaped cutting blade is formed at the tip of the cutter 94. The cutter 94 is made of, for example, stainless steel, but is not limited to this, and it is more preferable that the cutter 94 is made of a metal that is inexpensive, durable, and inexpensive.

As shown in detail in FIG. 4, a pressing means 99 constituting a pressing mechanism is arranged near the cutter 94. The holding means 99 has a function of holding and holding the master 1M before it is cut between the master 1M and the cutter receiving base 91 as the held means so as not to move. The holding means 99 is mainly composed of four holding plates 97a, four compression springs 95, a pair of holding plates 96a and 96b, and a pair of rubber plates 96c and 96d, which will be described later.

Holes 93b formed in the cutting means mounting portion 93a are vertically and horizontally sandwiched by the base of the cutter 94.
The four moving pins 97b are arranged so as to penetrate through the base plate and be movable back and forth in the length direction. At one end of each moving pin 97b,
The holding plates 97a are fixed to each other, and the holding plates 97a
Serves to prevent the moving pin 97b from coming off from the cutting means mounting portion 93a. Each moving pin 97
At the other end of b, a pair of pressing plates 96 with a cutter 94 sandwiched therebetween.
a and 96b are fixed. Each pressing plate 96a, 96
The side walls of b that are opposed to each other are provided with a predetermined gap from the cutter 94. Each pressing plate 96a, 96b
Has a long plate shape and is made of a light metal such as an aluminum alloy or a synthetic resin. The compression spring 9 is attached to each moving pin 97b between the front surface of the cutting means mounting portion 93a near each hole 93b and the back surface of each pressing plate 96a, 96b.
5 are wound around each of these springs 95
The pressing plates 96a and 96b are always urged by the urging force in a direction away from the surface of the cutting means mounting portion 93a. A cutter 94 is provided on the surface of each pressing plate 96a, 96b.
Immediately before cutting the master 1M, rubber plates 96c and 96d for pressing one side surface of the master 1M and preventing slippage with the master 1M are attached. The height positions of the tip surfaces of the rubber plates 96c and 96d for pressing the master 1M are higher than the blade tips of the cutter 94. The cutter 94 is moved by the cutting means displacement mechanism 90 between the cutting position and the non-cutting position at a predetermined time described later at a fixed position (also referred to as a plate feeding position or a plate making / discharging position) shown in FIGS. It is displaced and the operation described later is performed.

As described above, the pressing means 99 is arranged so as to selectively come into contact with and separate from the cutter receiving bases 91 on both sides of the groove 91a formed in the cutter receiving base 91. In other words, the pressing means 99 are provided on the upstream side and the downstream side, respectively, in the rotation direction of the printing drum 5 which is rotated at the time of plate discharge in the cutting section.

The plate discharge arm pair 8a, 8b is positioned and stopped by the plate discharge arm stopping means 35 at the fixed position shown in FIGS. 1 and 2, as shown in FIG. The plate discharge arm stopping means 35 includes a plunger protruding solenoid 37 having a guide pin 36 provided on a side plate 39 on the apparatus main body side and capable of protruding in a direction parallel to the rotation center axis 6 (shown in FIG. 1). , And an engaging hole 38 provided at an upper portion of the plate discharge arm 8a for allowing the guide pin 36 to project and fit therein.

As shown in FIGS. 1, 2, 7 and 8, the plate feeding arm pair 7a, 7b and the plate discharging arm pair 8a, 8b are integrally connected by a plate feeding and discharging arm joining means 40 at a fixed position. It is like this. The plate feeding / discharging arm joining means 40 has an engaging pin 41 implanted at a predetermined position of the plate feeding arm 7b and a shaft 43 pivotally mounted at a predetermined position of the plate discharging arm 8b at one end thereof. 41 and an engaging lever 45 in which a fitting groove 45h that engages with a predetermined timing is formed.
A solenoid 46 fixed to a predetermined position of the plate discharge arm 8b and rotatably connected to the other end of the engaging lever 45 via a plunger 46p; A joint spring 42 that is provided between the arm 8b and a pin 8p that is planted at a predetermined position and that urges the fitting groove 45h of the engagement lever 45 in the counterclockwise direction in the drawing.
And the engaging lever 4 which is planted at a predetermined position of the plate discharge arm 8b.
5, and a stopper 44 for stopping the other end of 5. The engagement lever 45 is made of sheet metal and has a substantially L shape.

1 and 2, reference numeral 50 indicates a thermal head contacting / separating means. Thermal head contact / separation means 50
Is a plate making position where the thermal head 4 is brought into contact with the platen roller 3 via the master 1 during plate making (shown by a virtual line in the figure) and a non plate making position where it is separated from the plate making position during a plate making (shown by a solid line in the figure). It has a function to selectively shift to and. The thermal head contacting / separating means 50 includes a DC motor (not shown), a cam 47, a cam follower arm 48, which will be described later.
It is mainly composed of a spring 49 and a thermal head 4.

A drive shaft 47s is provided on the side plate on the apparatus main body side.
A DC motor (not shown) is fixedly installed, and a plate cam 47 is integrally attached to the drive shaft 47s. Further, in the vicinity of the cam 47, a pair of cam follower arms 48, 48, which are pivotally attached to the side plate by a shaft 48s and have a roller 48a that is in sliding contact with the contour peripheral surface of the cam 47, are arranged. A mounting portion of a roller 48a as a cam follower is formed at one end of each cam follower arm 48, 48, and extends in a direction parallel to the axis 3s of the platen roller 3 between the other end of each cam follower arm 48, 48. The existing thermal head 4 is attached. In addition, the rollers 48 of the cam follower arms 48, 48
Between the mounting portion of a and the shaft 48s, the other end of a tension spring 49, one end of which is hooked on the side plate, is hooked,
The pair of springs 49 gives the thermal head 4 a turning tendency in the counterclockwise direction in the drawing. The thermal head 4 has a well-known configuration in which a large number of fine heating elements are arranged in a line in a direction orthogonal to the sub-scanning conveyance direction of the master 1, that is, in the main scanning direction. In addition, in FIG.
A pair of each of the above-mentioned components is arranged on the front side and the back side of the paper, but only the front side is shown for the sake of simplicity.

In FIGS. 2 and 10, the winding shaft 9 of the plate discharge roll 10 is made of a core tube made of a synthetic resin pipe material, and the other end of the master 1 fed from the plate supply roll 2 is pre-bonded. It has been wrapped around. A master for one plate or more is wound in advance on the winding shaft 9 used for initial setting of the master. A cutout groove 9a is formed at one end of the winding shaft 9.

The free end portion of the plate discharging arm 8a is fitted in the notch groove 9a of the winding shaft 9 of the plate discharging roll 10 to support one end of the plate discharging roll 10 in a direction perpendicular to the shaft. A roll drive shaft 52 having a protruding engagement protrusion 52b is rotatably provided. A plate discharge roll gear 51 is fixed to the shaft end of the roll drive shaft 52. On the other hand, at the free end of the plate discharging arm 8b, the winding shaft 9 of the plate discharging roll 10 is provided.
A slide shaft 53 that is slidable in the LR direction in the drawing is provided in parallel with the rotation center shaft 6 so as to support the other end of the plate discharge roll 10 by being inserted into the hollow of the plate. The plate discharge roll 10 is
Between the plate discharge arm 8a and the plate discharge arm 8b, the engagement projection 5 of the roll drive shaft 52 is formed in the notch groove 9a on the one end side of the winding shaft 9.
2b is fitted, and the slide shaft 53 is fitted in the hollow on the other end side of the winding shaft 9, whereby the roll drive shaft 5
2 and the slide shaft 53 are arranged so as to be rotatable.

The roll drive shaft 52 and the slide shaft 5
A brake unit (not shown) that prevents the roll drive shaft 52 and the slide shaft 53 from loosening in the direction opposite to the winding direction is provided at the free ends of the plate discharge arm pairs 8a and 8b near 3, and will be described later. When the master 1 is mounted on the outer peripheral surface of the printing drum 5 and when the used master 1b is wound up, a braking force is applied so as not to loosen and a predetermined tension is applied. The braking force of the brake unit is applied to the core tube 2s of the plate feed roll 2 by the brake unit 2
It is set to be at least smaller than the braking force of 6. Plate supply roll 2, the master supply section, and plate discharge roll 10
8 and 9 described in Japanese Patent Application Laid-Open No. 6-270524 previously proposed by the applicant of the present application.
It has the same structure as that shown in FIG. That is, when the master 1 fed from the plate supply roll 2 is completely used and the plate discharge roll 10 becomes full of the used master 1b, the plate supply roll 2 and the plate discharge roll 10 are unused plate supply rolls and unused plate discharge rolls. It is set as a so-called disposable specification that can be exchanged with the set product. Further, a connecting member (not shown) is bridged between the free ends of the plate discharge arms 8a and 8b that do not hinder the rotation operation of the plate discharge roll 10 in order to improve the rigidity thereof.

In FIG. 2, reference numeral 60 is a plate discharge roll 1.
The plate discharge roll shaft driving means for rotating the winding shaft 9 of 0 is shown.
The plate discharge roll shaft driving means 60 mainly includes a plate discharge winding motor 56, a gear 58, a pair of connecting arms 59 and 59, and a gear 61, which will be described later.

A plate discharge winding motor 56 is fixedly mounted on the side plate on the apparatus main body side. A gear 58 is fixed to a rotation output shaft 57 of the plate discharge winding motor 56. Gear 5
Next to 8 is a gear 61 which is supported by a pair of connecting arms 59, 59 at a predetermined interval so as to be rotatable about a shaft 61s and which is constantly meshed with the gear 58.

At the start of plate making, when the gear 58 of the plate discharge winding motor 56 rotates in the direction of the arrow A in the figure, the gear 61 is discharged through the pair of connecting arms 59, 59 under the action of the rotation moment of the gear. It swings in a direction approaching the roll gear 51 and meshes with the plate discharge roll gear 51, and the rotational force of the plate discharge winding motor 56 is transmitted to the roll drive shaft 52. On the other hand, at the end of plate making, the gear 58 of the plate discharge winding motor 56 is slightly reversely rotated in the direction opposite to the arrow A direction in the drawing, so that the gear 61 is moved through the pair of connecting arms 59, 59.
It swings away from the plate ejection roll gear 51 to disengage from the plate ejection roll gear 51.

Next, with reference to FIGS. 11 and 12, a characteristic control configuration of the stencil plate making and printing apparatus will be described. In FIG. 11, the control components surrounded by virtual lines or broken lines are those not used in the first embodiment.

In FIG. 11, reference numeral 75 indicates a control means. The control means 75 includes the platen roller 3 and the printing drum 5.
Based on a cutting signal for cutting the master 1M by the cutter 94 between the winding start position of the master 1 on the outer peripheral surface of the printer 1, the drum drive motor M19 is caused to rotate the print drum 5 in the counterclockwise direction, and Plate discharge winding motor 56
In order to wind the used master 1b wound around the printing drum 5 on the winding shaft 9, the rotary drive operation of the drum drive motor M19 and the plate discharge winding motor 56 is controlled. The control means 75 has a CP not shown in the drawings.
U (central processing unit), I / O (input / output) port, R
The microcomputer is provided with an OM (read-only storage device), a RAM (readable / writable storage device), a timer, and the like, which are connected by a signal bus (not shown) and have a well-known configuration. The control means 75 is provided on a board (not shown) arranged on the side plate on the apparatus main body side.

In FIG. 12, reference numeral 80 indicates an operation panel equipped with various keys and various display devices for operating the stencil plate making / printing apparatus. The operation panel 80 is shown in FIG.
It is provided in the upper part of a document reading device (not shown) provided above the device main body side. Operation panel 80
Includes a master set key 83, a plate discharge winding key 82, a ten key 86, a plate making start key 84, and a print start key 8.
5, a master disconnection key 81 and a master disconnection indicator 81D are arranged.

The master set key 83 is used to set a new unused plate supply roll 2U and unused plate discharge roll 10U in the stencil plate making / printing apparatus, when the master is cut during plate making, plate discharging or printing, or when the printing paper P is used. When the plate supply roll 2 and the plate discharge roll 10 are set during the processing operation such as the jam, the activation of the printing drum 5, the plate supply unit 68, and / or the plate discharge unit 69 is set. When the master set key 83 is pressed once, the LED (light emitting diode) incorporated in the key is turned on, and is turned off when the master set key 83 is pressed twice or when another key is pressed. It has become.

The plate discharge winding key 82 is used when the master 1 is cut during plate making, plate discharging or printing, or when the printing paper P is used.
When replacing the plate feed roll 2 and the plate discharge roll 10 due to the fact that the master 1 wound around the outer peripheral surface of the printing drum 5 is curled up, folds, or wrinkles are generated during the processing operation for jamming etc. A cutting signal after the master 1M is cut by the cutter 94 is set between the platen roller 3 and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5.

The master cut key 81 is provided on the master 1 wound around the outer peripheral surface of the printing drum 5 when the master 1 is cut during plate making, plate discharge or printing, or when a processing operation such as a jam of the printing paper P is performed. The plate feed roll 2 and the plate discharge roll 10 are accompanied by the occurrence of burr, folds, wrinkles, and the like.
The predetermined operation of the printing drum 5 and the predetermined operation of the cutting means displacing mechanism 90, which are performed when exchanging the paper, are set. In the first embodiment, the master cut key 81
However, when it is pressed once, the master disconnection preparation signal is transmitted to the control means 75, and when it is pressed twice, the master disconnection completion signal is transmitted to the control means 75.

The master cut indicator 81D displays the operation state of the print drum 5 and the operation means of the cutting means displacement mechanism 90 when the master cut key 81 is pressed. The master disconnection indicator 81D is composed of an LED (light emitting diode), and is turned on when the master disconnection key 81 is pressed once and turned off when it is pressed twice.

The ten-key pad 86 sets the number of prints. The print start key 85 sets activation of each operation up to the printing process. The plate-making start key 84 activates each operation from image reading of a document to plate making, plate feeding, and plate making as a test print.

In FIG. 11, reference numeral 76 indicates a print drum position sensor. The print drum position sensor 76 is provided on the outer side surface of the drum flange 12a and has a slit disk (not shown) having a slit (not shown), and is disposed on the side plate near the slit disk on the side of the apparatus main body and is associated with the slit disk. And a transmissive photo sensor. This photo sensor is a well-known photo-type rotary encoder including a light projecting element and a light receiving element provided with the slit disk sandwiched therebetween, and detects a rotation angle of the printing drum 5, that is, a rotation position. The print drum position sensor is not limited to the above, and may be a magnetic encoder or the like.

The control means 75 includes a document reading device, a plate-making portion drive mechanism including the thermal head 4, and the like, which are not shown in the figure in the stencil-type plate-making printing device, and the plate discharge winding motor 56.
To the sheet discharging section driving mechanism including the sheet feeding section driving mechanism of the sheet feeding apparatus, the printing section driving mechanism including the drum driving motor M19, and the sheet discharging section driving mechanism including the sheet discharging and peeling apparatus through respective driving circuits not shown. Are electrically connected to each other, and send and receive command signals and / or ON / OFF signals and data signals to and from them, and activate the devices and drive mechanisms of the above-mentioned parts,
Although the system of the entire operation such as stop and timing is controlled, only the control configuration of the main part shown in FIG. 11 will be described in order to clarify the control characteristics of the first embodiment.

The control means 75 is electrically connected to the above-mentioned various keys of the operation panel 80, the master disconnection display 81D, the print drum position sensor 76, etc., and a command signal and / or ON / OFF with these. Although signals and data signals are transmitted and received, only the control configuration of the main part shown in FIG. 11 will be described in order to clarify the control characteristics of the first embodiment. Further, the control means 75 includes a drum drive motor M19,
It is electrically connected to the DC motor M92 and the plate discharge winding motor 56 of the cutting means displacing mechanism 90 via respective drive circuits (not shown) and the like, and command signals and / or ON / OFF signals and data with them. Sending and receiving signals. Data signals and ON / OFF signals from the master cutting key 81, the plate discharge winding key 82 and the print drum position sensor 76 are transmitted to the control means 75. The RO of the control means 75
In M, programs and necessary data relating to operations such as start-up, stop and timing of the above-mentioned device and each drive mechanism are stored in advance.

Next, the operation of this stencil plate making and printing apparatus will be described below with reference to the operation diagrams of FIGS. 13 to 18, the plate discharge arm stopping means 35, the plate discharge roll gear 51, the roll drive shaft 52,
Brake unit 26, plate feeding / discharging arm joining means 40, thermal head contact / separation means 50, plate discharging roll shaft driving means 6
Detailed components such as 0, the cutter 94, and the cutting mechanism displacing mechanism 90 are omitted as needed for the sake of simplicity. In addition, a constituent part of the cutting means displacement mechanism 90, each of which is composed of a pair, that is, a pair of cams 92, 9
2, a pair of rollers 93R and 93R, a pair of cam follower arms 93a and 93b, and a pair of springs 98 and 98
, Etc., the pair of operations are the same, so only the operation of the illustrated members will be described, and the description of the members not illustrated will be omitted. First, at the time of initial master setting in which the unused plate feeding roll 2U is set in the plate feeding unit 68, the master set key 83 is pressed to turn on the LED of the master set key 83, and the plate feeding unit 68 of the drum unit 65 and the plate ejection plate are discharged. The unit 69 is placed in the master attachment / detachment position shown in FIG. In FIG. 13, an unused plate supply roll 2U and an unused plate discharge roll 10
Among the set products in which U is connected by the master 1, an unused plate discharge roll 10U is set on the roll drive shaft and slide shaft of the plate discharge arm pair 8a, 8b via the brake unit, and the tip of the master 1 is cut by a cutter. The unused plate feeding roll 2U is set on the plate feeding arm pair 7a, 7b through the brake unit 26 from the inclined surface of the pedestal 91 to the outer peripheral surface of the platen roller 3. At this time, since the thermal head 4, the cutter 94, and the press roller 11 supported on the apparatus main body side are separated from the projecting portion of the drum unit 65 by the above-described means, no trouble such as interference occurs. In the plate discharge unit 69, the plate discharge arm pairs 8a and 8b are stopped at the fixed position shown in the figure by the operation of the plate discharge arm stopping means 35 (shown in FIG. 7). That is, in FIG. 9, when the solenoid 37 is turned on, the guide pin 36 is fitted into the engagement hole 38 of the plate discharge arm 8a, and when the solenoid 37 is turned off, the stopped state is released. In the subsequent operations, the description of the operation of stopping and releasing the plate discharge unit 69 by the plate discharge arm stopping means 35 will be omitted as occasion demands.

Next, the plate discharge unit 69 remains in the fixed position shown in the same figure, and the printing drum 5 and the plate supply unit 68 are driven by the driving force supplied from the drum driving means 70 (shown in FIG. 5).
Are integrally rotated in the direction of arrow A (see FIG. 13), and the master 1 is sequentially fed out from an unused plate discharge roll 10U formed by being wound around the winding shaft 9 in advance, while being wound on the outer peripheral surface of the printing drum 5. It will be wrapped around. At this time, the plate discharge unit 69 is disconnected from the printing drum 5 by the plate discharge friction clutch 16 (shown in FIG. 5) and occupies a fixed position, and the plate supply unit 68 is a plate supply friction clutch. Print drum 5 by 15 (shown in FIG. 5)
Is connected to. Since a predetermined braking force is applied to the core tube 2s of the plate supply roll 2 by the brake unit 26 and to the winding shaft 9 of the plate discharge roll 10 by a brake unit (not shown), the master pulled out from the plate discharge roll 10 Since a predetermined tension is applied to the master 1, the master 1 can be wound around the outer peripheral surface of the printing drum 5 without generating wrinkles.

Next, referring to FIG. 14, the plate feeding unit 6
When 8 is rotated to the position shown in the figure, the plate feeding unit 68 and the plate discharging unit 69 connect the plate feeding and discharging arm joining means 40.
Are joined together. That is, in FIGS. 7 and 8, when the plate feeding arm 7b is rotated to the vicinity of the fixed position in the direction of the arrow A, the engaging pin 41 and the sliding contact guide portion 45a are brought into sliding contact with each other to engage with the fitting groove 45h. The dowel pin 41 is fitted to the plate feeding arm pair 7a, 7b and the plate discharging arm pair 8
a and 8b are integrally connected. Up to this point is the preparation process before plate making. When releasing the connection between the plate feeding arm pair 7a, 7b and the plate discharging arm pair 8a, 8b,
Plunger 46p due to solenoid 46 turning on
The fitting groove 45h is rotated in the direction of the arrow A through the suction operation described above to release the fitting between the fitting groove 45h and the engagement pin 41.

Next, in FIG. 14, plate making and plate ejection are performed at the same time. When the plate making start key 84 is turned on, the LED of the master set key 83 is turned off. First, on the plate feeding unit 68 side, the thermal head 4 is operated by the thermal head contacting / separating means 50 to the platen roller 3 via the master 1. It is displaced to the abutment plate making position. That is, as shown in FIG. 2, the cam 47 is rotated by the rotational drive of the DC motor, and the large diameter portion of the cam 47 and the roller 4 are rotated.
The engagement state with 8a is released, and the cam follower arm 48 swings in the direction of arrow D by the urging force of the spring 49, and the heating element of the thermal head 4 is pressed against the platen roller 3 via the master 1. It will be.

At this time, in FIG. 6, the cam 32 is rotated in the direction of the arrow B in the figure by the rotational drive of the DC motor, so that the large diameter portion of the cam 32 and the roller 33a are engaged with each other, and the cam follower bracket 33 is removed. The drive gear 31 meshes with the gear 30 by being rotated about the shaft 33s. At this time, when the pulse motor 28 is rotationally driven, the gear 30 and the platen roller 3 are rotated in the direction of the arrow B in the drawing, the master 1 is sequentially drawn from the plate feed roll 2 and conveyed, and is not shown. In accordance with the image information read from the document reading device, the heating element portion of the thermal head 4 selectively generates heat, and holes are sequentially punched from the leading end of the master 1 to perform plate making.

At the same time as this plate making operation, the drum driving means 7
With the driving force supplied from the drum driving motor M19 of 0,
Only the printing drum 5 moves in the direction of arrow B in the drawing to the platen roller 3
The plate-making master 1a is wound around the outer peripheral surface of the printing drum 5 by being rotated at a peripheral speed that is synchronized with the peripheral speed. At this time, the plate discharge friction clutch 16 of the plate discharge arm pair 8a, 8b and the plate supply friction clutch 15 of the plate supply arm pair 7a, 7b are disconnected from the printing drum 5. Plate-making master 1a supplied from the platen roller 3
The peripheral speed of the printing drum 5 is set to be slightly higher than the peripheral speed of the platen roller 3 in order to apply an appropriate tension to the printing drum 5 and to wind it around the printing drum 5.

On the other hand, in parallel with the above plate making and plate feeding operations,
As shown in FIG. 2, on the plate discharge unit 69 side, the plate discharge roll gear 5 is driven by the operation of the plate discharge roll shaft driving means 60.
1 and the gear 61 are meshed with each other, and the plate discharge winding motor 56 is rotationally driven, whereby the roll drive shaft 52 and the winding shaft 9 are rotated in the direction of the arrow A, and a predetermined length (one The used master 1b of the plate is wound in a roll.

After completion of plate making, in FIG. 16, the thermal head 4 is separated from the platen roller 3 through the master 1 in the direction of arrow U in the figure by the operation of the thermal head contacting / separating means 50 to occupy the non-plate making position. On the other hand, in parallel with this operation, the driving of the pulse motor 28 is stopped, and the rotation of the DC motor causes the cam 32 to further rotate in the direction of arrow B in the figure, whereby the large diameter portion of the cam 32 and the roller 3 are rotated.
The engagement with 3a is released, the cam follower bracket 33 is rotated counterclockwise around the shaft 33s by the urging force of the spring 34, and the drive gear 31 is separated from the gear 30.

On the other hand, simultaneously with the above operations, in the figure,
The driving of the plate discharge winding motor 56 is stopped. Then, the plate discharge take-up motor 56 slightly rotates the gear 58 in the direction opposite to the arrow A direction to separate the gear 61 from the plate discharge roll gear 51, thereby stopping the rotation of the plate discharge roll 10. It becomes the same state as the fixed position of. Next, from the state of FIG. 16, the plate supply unit 68, the plate discharge unit 69, and the printing drum 5 are integrated, that is,
With the plate discharge friction clutch 16 of the plate discharge arm pair 8a and 8b and the plate supply friction clutch 15 of the plate supply arm pair 7a and 7b respectively connected to the printing drum 5, as shown in FIG. Plate-making master 1b wound around the outer peripheral surface of the printing drum 5 near the plate discharge roll 10
The printing drum 5 is rotated until it reaches a position diagonally right above the press roller 11 corresponding to the initial plate making position.

In FIG. 17, the printing process begins. That is, when the print start key 85 is pressed, the drum drive motor M19 is rotationally driven, so that the print drum 5 is rotated in the direction of the arrow B in the drawing and is loaded on the paper feed tray 88 in FIG. The uppermost one sheet of the printing paper P pressed against the paper feed roller 89 by the compression spring 87 is rotated to the downstream side in the paper transport direction by the rotation of the paper feed roller 89 as the drive motor is rotationally driven. It is fed. In this way, the printing paper P thus fed is guided by the guide plates 25a and 25b, and is paired with the registration roller pair 24.
a, 24b, and further registration roller pair 2
The outer peripheral surface of the printing drum 5 and the press roller 1 at a predetermined timing synchronized with the rotation of the printing drum 5 by 4a and 24b.
It is sent between 1 and 1. Then, the press roller 11 which is separated from the outer peripheral surface of the printing drum 5 downward is moved upward by the swing of the arm 23 shown in FIG. 1 and is rotated in the direction of arrow B in the figure. When the printing paper P is pressed against the plate-making master 1a wound around the outer peripheral surface of the drum 5, the ink is transferred from the perforated portion of the plate-making master 1a to the surface of the printing paper P.

At this time, the ink roller 20 shown only in FIG. 1 also rotates in the same direction as the rotation direction of the printing drum 5, and supplies ink to the inner peripheral surface of the printing drum 5. In this way, the printing paper P printed is printed by the press roller 11
After passing, the sheet is peeled off from the outer peripheral surface of the print drum 5 by the sheet discharging peeling means (not shown), and is discharged and stacked on the sheet discharging table (neither is shown) by the sheet discharging conveying means. When the plate supply unit 68 and the plate discharge unit 69 approach the press roller 11 as shown in FIG. 18 after the printing process of FIG. 17, the press roller 11 causes the plate supply roll 2 and the plate discharge roll 1 to move.
The non-printing position is separated from the printing drum 5 in the direction of the arrow D in the drawing so as not to interfere with the protruding portion such as 0. The master 1 is filled with ink by this initial printing process,
So-called plate making is performed, and the press roller 11 is returned to the initial position state (which is also the fixed position state) in which the press roller 11 is separated from the printing drum 5, and the printing standby state is set.

After that, by inputting the number of prints with the ten keys 86 and depressing the print start key 85, the above-mentioned printing, feeding and discharging steps are repeated a predetermined number of times to perform printing. The subsequent steps of plate making, plate discharging and printing are repeated again from the state of FIG.

As described above, while the operations of plate making / discharging, plate feeding and printing are repeated, the printing paper P is wound around the printing drum 5 by a processing operation such as jamming of the printing paper P during printing. If the master 1a or the master 1 (hereinafter, simply referred to as "master 1") rolls up or is broken and the master 1 is wound around the plate discharge roll 10 as it is, the outer peripheral surface of the plate discharge roll 10 becomes uneven. As a result, wrinkles occur in the master 1 wound around the printing drum 5. Therefore, in order to remove the wrinkles of the master 1 on the printing drum 5, or the master 1 wound around the printing drum 5 is curled or bent due to a processing operation such as a jam of the printing paper P. When the master 1 is cut during plate making, plate discharge or printing, the plate discharge roll shaft support means 67 moves the take-up shaft 9 to the take-up shaft 9.
The plate discharge roll 10 through the plate feeding roll shaft support means 66.
It is necessary to remove and replace the plate feed rolls 2 via the core tube 2s from the core plate 2s. Since they are in a connected state, it is necessary to simultaneously remove and attach the plate supply roll 2 and the plate discharge roll 10 while peeling off the master 1 which has been wound around the printing drum 5 and to which ink is attached. Further, when the master 1 is cut during plate making, plate discharge or printing, ink is attached to the master 1 once used for printing, and therefore the plate discharge roll 10 or the plate supply roll 2
If you do not carefully remove and replace the
There is a risk that the ink will adhere to the periphery of the printing drum 5 or the hands of the replacement worker and become dirty. Furthermore, in order to use the unused master 1 wound around the plate feed roll 2 that has been removed, the unused master 1
Care must be taken not to stain the surroundings of the printer, the printing device, etc., and the ink portion adhering to the master 1 of the plate supply roll 2 must be removed before use.

Therefore, in order to solve the above problems, a master cutting operation and a master winding operation after master cutting, which will be described in detail below, are automatically performed based on the above configuration.

First, the master disconnection operation will be described. When the master 1 is cut during plate making, plate discharging, or printing, or by a processing operation such as jamming of the printing paper P, the printing drum 5
When a master abnormal state occurs, such as when the master 1 wound around the roll is curled or bent and wrinkles occur, the operator can operate the master cut key 81 on the operation panel 80.
When is pressed, a master disconnection preparation signal is transmitted to the control means 75, and the master disconnection indicator 81D is turned on by a command signal from the control means 75 based on this master disconnection preparation signal. Then, based on the master cutting preparation signal and the print drum position data signal from the print drum position sensor 76, the control means 75 drives the drum drive motor M19 so that the plate feeding unit 68 and the plate discharging unit 69 are changed to those in FIGS. Control is performed to occupy the fixed position state shown.

Then, the control means 75 drives and controls the cutting means displacement mechanism 90. That is, the DC motor M
When the cam 92 is driven to rotate and the cam 92 is rotated, the engagement between the large diameter portion of the cam 92 and the roller 93R is released, and the urging force of the spring 98 causes the cam follower arm 93 to move in the arrow E direction. It swings and descends, and the pair of pressing plates 96 are inserted through the pair of rubber plates 96c and 96d.
By the a and 96b, the master 1M is pressed onto the slope of the cutter pedestal 91 without slipping. Thus, the cutter 9
When 4 starts to occupy the cutting position, the master 1M receives the cutter force against the biasing force of each spring 95 by the biasing force of the spring 98 and the pair of pressing plates 96a and 96b through the pair of rubber plates 96c and 96d. After being pressed more securely on the slope of the base 91, the cutter 94 is moved to the master 1
While biting into M, it enters into the groove 91a of the cutter receiving base 91, and the master 1M is cut.

Next, the master winding operation after cutting the master is performed. First, when the operator confirms the disconnection completion state of the master 1M and then presses the master disconnection key 81 again, a master disconnection completion signal is transmitted to the control means 75, and the control means 75 based on this master disconnection completion signal. The master disconnection display 81D is turned off by the command signal. Then, the control means 75 drives and controls the cutting means displacement mechanism 90 based on the master cutting completion signal. That is, when the DC motor M92 is rotationally driven to rotate the cam 92, the large diameter portion of the cam 92 is engaged with the roller 93a against the urging force of the spring 98, and the cam follower arm 93 is Swings and rises in the direction opposite to the arrow E direction,
The cutter 94 retracts from the groove 91a of the cutter receiving base 94, the cutter 94 occupies the non-cutting position, and the cutting means displacement mechanism 90 returns to the initial position state.

Next, the operator operates the plate discharge winding key 82.
When is pressed, a disconnection signal is transmitted to the control means 75. Based on this cutting signal, the control means 75 drives and controls the drum drive motor M19 and the plate discharge winding motor 56. That is, the drum drive motor M19 is rotationally driven by each command signal from the control means 75 based on the disconnection signal, and only the printing drum 5 is rotated in the counterclockwise direction (the arrow B direction in the drawing). On the other hand, the master 1 wound around the print drum 5 is discharged as the used master 1b by rotating the discharge plate winding motor 56 in the above-described operation substantially in synchronization with the rotation operation of only the print drum 5. The master winding operation is completed when one of the masters 1M, which is finally wound up by the winding shaft 9 of the roll 10 and finally cut by the cutter 94, is wound around the winding shaft 9 of the plate discharge roll 10. To do. At this time, the plate discharge friction clutch 16 of the plate discharge arm pair 8a, 8b and the plate supply friction clutch 15 of the plate supply arm pair 7a, 7b are disconnected from the printing drum 5. The fixed position shown in FIGS.
In the master attachment / detachment position shown in FIG. 3, the plate discharge roll shaft support means 67 removes the plate discharge roll 10 via the winding shaft 9, and the plate supply roll shaft support means 66 removes the plate supply roll 2 via the core tube 2s. And replace it with a new one.

Therefore, according to the first embodiment, when the master abnormal state as described above occurs, the master 94 is wound around the printing drum 5 and the cutter 94 feeds the master supply section (2s, 66). By cutting the master 1M between the plate roll 2 and the winding start position of the master on the outer peripheral surface of the printing drum 5, one of the cut masters 1M is the plate discharge roll 10 of the plate discharge winding unit (9, 67). On the side of the master supply unit (2
s, 66) is separately divided on the plate feed roll 2 side, so that the cut master 1M is wound up to the plate discharge roll 1
It becomes easy to remove 0 and the other cut plate feeding roll 2.

Further, the master 1 wound around the printing drum 5 is in an abnormal state, and the plate supply roll 2 and the plate discharge roll 1
When 0 is replaced, the plate discharge roll 10 of the unused master 1 remaining on the plate supply roll 2 is not polluted by the ink attached to the plate supply roll 2 or the plate discharge roll 10 around the printing apparatus or the hands of the operator. It is possible to mount it on or replace a new plate feed roll 2, and it is possible to use the ink non-adhesion master 1 remaining on the plate feed roll 2 side without waste. Since the cutter 94 has a saw-tooth shape, there is an advantage that the master 1M can be cut more easily than a straight blade.

The structure of the master pressing mechanism and the operation method for cutting the master 1M are not limited to those in the above-described first embodiment, and may have the following contents. That is,
2 is removed from the pressing means 99 of the first embodiment, and only the upper pressing plate 96a of FIG. 2 is removed. Master 1M via cradle 91
1 and 2, the print drum 5 is rotated in the counterclockwise direction and the take-up shaft 9 of the plate discharge roll 10 is rotated in the clockwise direction. While keeping the master 1M between and the tensioned state, the cutter 94 is inserted into the groove 91a of the cutter receiving base 91.
May be entered to disconnect the master 1M.

With such a configuration, in addition to the above advantages of the first embodiment, the weight and cost of the device can be further reduced.

In the case of the above structure, if it is not necessary to improve the operability by forming the groove 91b in the cutter receiving base 91, further, the cutter receiving base 91 as the pressed means. From the groove 91 in FIG.
The lower side of a may be removed. With such a configuration, it is possible to further reduce the weight and cost of the apparatus, reduce the moment of inertia (inertial force) of the plate feeding unit 68, and eventually to reduce the drum unit including the printing drum 5 during printing or the like. This is an advantage that vibration and noise can be further suppressed.

In summary, the master pressing mechanism is the same as that of the first embodiment.
Not limited to the above, the pressing means is provided on the upstream side of the cutting portion in the rotation direction of the printing drum 5 rotated at the time of plate discharge, and the cutter receiving base 91 as the pressed means is provided at least as far as the cutting portion. They may be provided on the upstream side respectively (see the invention according to claim 11).

(First Modification of First Embodiment) FIGS. 19 and 20 show a first modification of the first embodiment. The first modification is the first embodiment.
In contrast to the above configuration, the cutter 94 of the first embodiment has a heating wire 102 as a master cutting means, the pressing means 99 of the first embodiment is removed, and the cutting means displacement mechanism 90 of the first embodiment is replaced. Having the cutting means displacement mechanism 90A, instead of the cutter receiving base 91 of the first embodiment, the heat ray receiving base 104.
It is mainly different to have. In addition, in FIG. 19, the plate feeding arm pairs 7a and 7b and the like are omitted, and the configuration of a main part is schematically illustrated.

Hereinafter, differences from the first embodiment will be mainly described.

In FIG. 19, the heat ray receiving base 104 includes a plate feeding arm pair 7a near the shaft 3s supporting portion of the platen roller 3,
It is fixed between the free ends of 7b and has the function of receiving the heat rays 102. The heat wire pedestal 104 has a substantially trapezoidal cross section, is parallel to the shaft 3s of the platen roller 3, and
It is formed to be larger than the width dimension of the master 1 in the length direction of the shaft 3s. The heat ray receiving stand 104 is cut by the heat ray 102 between the platen roller 3 and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5.
Is provided in the vicinity of the cutting part. The heat ray receiving base 104 is made of a synthetic resin having a light weight and a predetermined strength, and is attached between the free ends of the plate feeding arm pairs 7a and 7b via fastening means such as screws. The heat wire 102 and the heat wire support member 106a, which have a predetermined depth that is substantially parallel to the shaft 3s of the platen roller 3 and have a long length in the length direction of the shaft 3s, are formed in the substantially central portion of the slope of the heat wire receiving base 104. 106b
Is formed with a groove 104a. A groove 104b having a predetermined depth that is long in the longitudinal direction of the groove 104a is formed on the slope portion of the heat ray receiving base 104 near the groove 104a on the downstream side in the master conveyance direction, substantially parallel to the groove 104a. . Like the groove 91b of the first embodiment, the groove 104b has a role of making it easy to grasp one end of the master 1M cut by the heating wire 102. Slope of heat wire receiving base 104, groove 1
A fluororesin coating such as Teflon (trade name) is attached as a heat-resistant and high-release coating on the surface of the groove 04a and the groove 104b.

The cutting means displacement mechanism 90A includes a cutter 94 and a pressing means 9 attached to the cutting means displacement mechanism 90.
It has a configuration similar to the configuration in which 9 is removed, and has a cutting position (shown by a virtual line in the figure) for cutting the master 1M and a non-cutting position (shown by a solid line in the figure) separated from the cutting position. It has a function of displacing the heating wire 102 between them. Therefore, the cutting wire displacing mechanism 90A allows the heating wire 102 to be freely displaced between the cutting position and the non-cutting position. The cutting means displacement mechanism 90A is mainly composed of a DC motor M92, a pair of cams 92, 92, a pair of rollers 93R, 93R, a pair of cam follower arms 101, 101 and a pair of springs 98, 98.

A shaft 101s is rotatably provided between the side plates on the apparatus body side in the vicinity of the cams 92, 92, and the contour peripheral surfaces of the cams 92, 92 are provided at both ends of the shaft 101s. A pair of rollers 93 as cam followers that are in sliding contact with
A cam follower arm 101 having R and 93R is fixed. The cam follower arm 101 is integrally fixed with a heat wire attachment portion 101a provided so as to extend in a direction parallel to the length direction of the groove 104a, and has a substantially frame structure together with the heat ray attachment portion 101a including the shaft 101s. Is formed.
The frame structure including the cam follower arm 101 does not have to be formed rigidly because a heavy component like the cam follower arm 93 of the first embodiment is not mounted.

A pair of heat ray supporting members 106a and 106b are fixedly provided at both ends of the heat ray attaching portion 101a, and the heat ray attaching portion 1 is provided between the heat ray supporting members 106a and 106b.
The heating wire 102 is stretched and supported with a gap from the surface of 01a. Between one end of the heat wire 102 on the heat wire supporting member 106b side and the heat wire supporting member 106b, one end is hooked by the heat wire supporting member 106b and the other end is hooked by one end of the heat wire 102 (a tension spring). ) Is interposed. Therefore, due to the tension of the spring 105, the heat wire 102 always maintains a constant tension.
It is provided between 6a and 106b. On the other hand, electric wires 103a and 103b each having one end connected to a power source (not shown) are arranged on both outer side walls of the cam follower arm 101, and the other ends of the electric wires 103a and 103b are connected via heat ray supporting members 106a and 106b. Are connected to the other end of the heating wire 102 and one end of the spring 105, respectively. The heat wire attachment portion 101a is coated with a fluororesin film such as Teflon (trade name) as a heat resistant and high mold release film, and the pair of heat wire support members 106a and 106b are made of a heat insulating and electrically insulating material. is made of. The spring 105 is made of a metal conductive material. Hot wire 1
02 is made of a nichrome wire having a wire diameter of 0.2 mm. The heating wire 102 may be, for example, a nichrome wire in which a surface of the nichrome wire is coated with a fluororesin coating such as Teflon (trade name) as a heat-resistant and high-release coating.

The control configuration of the first modification is different from the control configuration of the first embodiment shown in FIG. 11 only in that two control configurations surrounded by broken lines, that is, an arm displacement detection sensor 79 and a heat ray power source 74 are added. Be different. Hereinafter, differences from the first embodiment will be mainly described.

The arm displacement detection sensor 79 comprises a roller 93.
This is a transmissive photosensor provided with a light emitting element and a light receiving element, which is disposed on the side plate near the cam follower arm 101 near the roller 93R with the lower end portion of the cam follower arm 101 near the R interposed therebetween. The arm displacement detection sensor 79 is
The cam follower arm 101 is turned on by performing a light-shielding operation with respect to the lower end portion of the cam follower arm 101 in response to swinging and lowering of the cam follower arm 101. The arm displacement detection sensor 79 is not limited to the transmissive photosensor, but may be a sensor such as a microswitch. The arm displacement detection sensor 79 is electrically connected to the control means 75 and sends an ON / OFF signal to the control means 75. The hot wire power source 74 is connected to the control means 75 via an electric circuit (not shown) and to the hot wire 102 via electric wires 103a and 103b. The control means 75
Based on the signal from the arm displacement detection sensor 79, the heat ray 1
A command signal is sent to the hot-wire power supply 74 to turn on / off the current flowing through 02, and the on / off operation of the hot-wire power supply 74 is controlled. Further, the control means 75 drives the drum based on the cutting signal indicating that the master 1M is melted and cut by the heat of the heating wire 102 between the platen roller 3 and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5. The motor M19 is used to rotate the printing drum 5 counterclockwise, and the plate discharge winding motor 56 is used to wind the used master 1b wound around the printing drum 5 onto the winding shaft 9. It has a function of controlling the rotational drive operation of the drive motor M19 and the plate discharge winding motor 56.

The plate discharge winding key 82 is used when the master 1 is cut during plate making, plate discharging or printing, or when the printing paper P is used.
When replacing the plate feed roll 2 and the plate discharge roll 10 due to the occurrence of creases, creases, etc. on the master 1 wound around the outer peripheral surface of the printing drum 5 during the processing operation for jamming etc. A cutting signal is set after the master 1M is melted and cut by the heat of the heating wire 102 between the platen roller 3 and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5.

Next, the operation of the first modification will be described.

Similar to the first embodiment, when the master 1 is cut during plate making, plate discharge or printing, or the master 1 wound around the printing drum 5 is curled or bent due to a processing operation such as jamming of the printing paper P. In the event of occurrence of a master abnormal state such as wrinkles, the master cutting operation and the master winding operation after master cutting are automatically performed.

First, the master disconnection operation will be described. When the operator presses the master cut key 81, the same control operation as in the first embodiment is sequentially performed, and the control means 75 drives and controls the cutting means displacement mechanism 90A. That is, when the DC motor M92 is rotationally driven to rotate the cam 92, the engagement state between the large diameter portion of the cam 92 and the roller 93R is released, and the cam follower arm 101 is moved by the urging force of the spring 98. When the arm displacement detection sensor 79 is turned on when swinging / falling in the direction of the arrow E, the heat wire power source 74 is turned on, and the heat wire power source 74 turns on the electric wire 103a, the heat wire 102, the spring 105, and the electric wire 10.
A predetermined current flows to 3b. Then, when the above-mentioned current flows and the heat wire 102 that has generated heat occupies the cutting position, the heat wire 102 that has generated heat contacts the master 1M on the slope of the heat wire receiving base 104, and the master 1M is melted, while the heat wire support members 106a, 106a,
106b and the heat wire 102 enter the groove 104a, and the swinging / lowering of the cam follower arm 101 is stopped.

Next, the master winding operation after cutting the master is performed in substantially the same manner as in the first embodiment. First, when the operator confirms the disconnection completion state of the master 1M and then presses the master disconnection key 81 again, a master disconnection completion signal is transmitted to the control means 75, and the control means 75 based on this master disconnection completion signal. Master disconnection indicator 8 by command signal
1D is turned off. Then, the control means 75 drives and controls the cutting means displacement mechanism 90A based on the master cutting completion signal. That is, when the DC motor M92 is rotationally driven to rotate the cam 92, the large diameter portion of the cam 92 is engaged with the roller 93R against the urging force of the spring 98, and the cam follower arm 101 is It swings and rises in the direction opposite to the arrow E direction, and moves into the groove 104 of the heat ray receiving base 104.
When the heat wire 102 withdraws from the inside of a and the heat wire 102 starts to occupy the non-cutting position, the arm displacement detection sensor 79 is turned off, the heat wire power supply 74 is turned off, and the cutting means displacement mechanism 90A is set to the initial position state. Return. Hereinafter, the same operation as that of the first embodiment is sequentially performed.

An experiment was carried out using the stencil-type plate making and printing apparatus of Modification Example 1, and as a result, the heating wire 102, that is, a wire diameter of 0.2 m was obtained.
When electricity was applied to this using a m nichrome wire, the master 1M was easily fused and cut at 1 joule (J) or less.

Therefore, according to the first modification, when the master 1 wound around the printing drum 5 is in an abnormal state and the plate supply roll 2 and the plate discharge roll 10 are replaced, the same advantages as those of the first embodiment are obtained. . Further, the above configuration has an advantage that the cutting mechanism is simpler than that of the first embodiment.

(Second Modification of First Embodiment) FIGS. 21 and 22 show a second modification of the first embodiment. The second modification is the first embodiment.
In contrast to the above configuration, a movable cutter 111 serving as a master cutting unit is provided instead of the cutter 94 of the first embodiment, and the movable cutter 111 is moved in a direction parallel to the groove 91a of the cutter support 91 in the arrow LR direction in the figure. The main difference is that the moving cutter mechanism 110 is attached.

Hereinafter, differences from the first embodiment will be mainly described.

The moving cutter 111 has a disk-shaped rotary blade, and a cutter pulley 111a for winding a wire 115, which will be described later, is integrally formed on a base shaft portion thereof so as to be rotatable. . The moving cutter 111 is made of the same stainless steel as that of the first embodiment, but is not limited to this, and it is more preferable if it is made of an inexpensive metal that is resistant to rust and has durability.

The moving cutter mechanism 110 includes the moving cutter 11
1 is rotatably supported via a cutter shaft 114, and
The cutter holder 113 slidable in the arrow LR direction, the wire 115 partially wound around the cutter pulley 111a and rotatably supported by the rib 93e and the wire 115 spanned between the idle pulley 118, and the output shaft 116s. The cutter motor 116 that is connected to the motor pulley 117 via the motor pulley 117 to rotate the motor pulley 117, and the pulley holder 119 that supports the idle pulley 118 to extend and contract and rotate in order to apply tension to the wire 115.
A compression spring 120 for urging the idle pulley 118 via the pulley holder 119 in a direction away from the motor pulley 117, and a cutter position detection sensor right 7 for detecting the movement limit position of the movement cutter 111 in the arrow LR direction.
7, a cutter position detection sensor left 78, and a control means 75.

A support groove 93c, which is long in a direction parallel to the groove 91a of the cutter receiving base 91 and slidably supports the cutter holder 113, is formed in a substantially central portion of the cutting means mounting portion 93a. The cam follower arm 93 has a rib 93e integrally formed perpendicularly to the cutting means mounting portion 93a.
By having at one end thereof, it is firmly formed.

The cutter holder 113 has a substantially channel-shaped cross section and is made of a light metal such as an aluminum alloy.
On both outer walls of the opening of the cutter holder 113, holder sliding parts 113a each having an outwardly channel-shaped opening are formed. The holder sliding part 113a of the cutter holder 113 is always engaged with the support groove 93c.
A cutter shaft 114, which rotatably supports the movable cutter 111, penetrates and is screwed into a portion of the cutter holder 113 near the holder sliding portion 113a. The cutter motor 116
The output shaft 116 is fixed to the rear side of the rib 93e.
s is rotatably supported by the rib 93e. Output shaft 1
A motor pulley 117 is fixed to the end of 16s. In addition, in order to simplify the drawing, in FIG.
A part of 16s and the motor pulley 117 are not shown, and the cutter holder 113 is not shown in FIG. A spring 120 is interposed between the pulley support bracket 93d fixed to the rib 93e and the end of the pulley holder 119, and the idle pulley 118 is provided.
Is rotatably supported by a pulley holder 119 and is constantly urged by a spring 120 in a direction away from the motor pulley 117. Therefore, the wire 115 wound between the motor pulley 117 and the idle pulley 118 by the spring 120 and wound around the cutter pulley 111a is always stretched with a constant tension.

The cutter position detection sensor right 77 and the cutter position detection sensor left 78 are arranged at each end of the support groove 93c in the arrow LR direction in the cutting means mounting portion 93a. The cutter position detection sensor right 77 and the cutter position detection sensor left 78 are transmissive photosensors each including a light emitting element and a light receiving element that are arranged so as to face each end of the support groove 93c. The cutter position detection sensor right 77 and the cutter position detection sensor left 78 are adapted to be turned on by shading the outer wall of one side of the cutter holder 113 in response to the movement of the cutter holder 113. In addition,
The cutter position detection sensor right 77 and the cutter position detection sensor left 78 are not limited to the transmissive photosensors described above, but may be sensors such as microswitches.

The control configuration of the second modification is the same as the component of the first embodiment shown in FIG. 11, which is enclosed by phantom lines, that is, the cutter position detection sensor right 7
7, cutter position detection sensor left 78 and cutter motor 11
The difference is that 6 is attached. Only the differences will be briefly described below.

The control means 75 responds to a disconnection signal indicating that the master 1M has been disconnected by the rotating operation accompanying the movement of the moving cutter 111 between the platen roller 3 and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5. Based on this, the drum driving motor M19 is used to rotate the printing drum 5 counterclockwise, and the plate discharge winding motor 56 is used to wind the used master 1b wound around the printing drum 5 onto the winding shaft 9. The drum drive motor M19 and the plate discharge winding motor 5
6 has a function of controlling the rotation driving operation.

The plate discharge winding key 82 is used when the master 1 is cut during plate making, plate discharging or printing, or when the printing paper P is used.
When replacing the plate feed roll 2 and the plate discharge roll 10 due to the occurrence of creases, creases, etc. on the master 1 wound around the outer peripheral surface of the printing drum 5 during the processing operation for jamming etc. A cutting signal is set after the master 1M is cut by the rotating operation accompanying the movement of the moving cutter 111 between the platen roller 3 and the winding start position of the master 1 on the outer peripheral surface of the printing drum 5.

Next, the operation of the second modification will be described focusing on the points different from the first embodiment. Similar to the first embodiment, when the above-described abnormal master state occurs, the master cutting operation and the master winding operation after the master cutting are automatically performed. First, the master disconnection operation will be described with reference to FIGS. 1 and 2. Operator presses master disconnect key 81
When is pressed, the control means 75 is operated in the same manner as the operation of the first embodiment.
On the basis of the master cutting preparation signal and the print drum position data signal from the print drum position sensor 76, the drum driving motor M19 is operated and the plate feeding unit 68 and the plate discharging unit 69 are in the fixed position state shown in FIGS. Control to occupy.

Then, the cutting means displacement mechanism 90 is drive-controlled by the control means 75 in the same manner as the operation of the first embodiment, and the DC motor M92 is rotationally driven to rotate the cam 92, whereby the cam 92 is rotated to a large size. The engagement state between the diameter portion and the roller 93a is released, and the cam follower arm 93 swings and descends in the direction of arrow E by the urging force of the spring 98, and a pair of pressing members are pressed via the pair of rubber plates 96c and 96d. By the plates 96a and 96b, the master 1M is pressed onto the slope of the cutter receiving base 91 without slipping. At this time, the movable cutter 111 and the cutter holder 113 stand by at the left end position, which is located near the left of the cutter position detection sensor 78 and deviates from the master 1M. Thus, the moving cutter 111
When the blades occupy the cutting position, the master 1M resists the urging force of each spring 95 by the urging force of the spring 98 and the pair of pressing plates 96a and 96b through the pair of rubber plates 96c and 96d. More surely pressed down on the 91 slope. Immediately after this, the cutter motor 116 is rotated by the command signal from the control means 75 so as to move the wire 115 in the arrow b direction in FIG.
5 is moved in the direction of arrow b, so that the moving cutter 1
11 is rotated in the direction of the arrow C in the figure, so that the master 1M
It is moved to the right end position while cutting. Moving cutter 1
When 11 moves to the right end position, the master 1M is cut off, and the cutter position detection sensor right 77 detects ON, the control means 75 stops the rotational drive of the cutter motor 116 based on the signal. The rotation of the cutter motor 116 is temporarily stopped by transmitting the command signal to the. After the elapse of a predetermined time by the internal timer of the control means 75, the cutter motor 116 is rotationally driven in the opposite direction to the above by the command signal from the control means 75, whereby the wire 115 is moved in the direction opposite to the arrow b direction.
When the movable cutter 111 moves to the left end position and the cutter position detection sensor left 78 detects ON, the control means 75 sends a command signal to the cutter motor 116 based on the signal to stop the rotational driving of the cutter motor 116. By doing so, the rotation of the cutter motor 116 is stopped.

Next, the master winding operation after cutting the master is performed in the same manner as in the first embodiment.

Therefore, according to the second modification, the first embodiment
Has the same advantages as. Further, since the moving cutter 111 is a sharp rotary blade that moves while rotating, there is an advantage that the master 1M can be cut cleanly.

The moving cutter mechanism of the second modification is not limited to the moving cutter mechanism 110, but may be a moving cutter mechanism 110A as shown in FIG. The movable cutter mechanism 110A includes the cutter holder 11 of the movable cutter mechanism 110.
3 and the wire 1 wound around the cutter pulley 111a
Instead of 15, a wire fixing portion 115a in which a part of the wire 115 is fixedly attached to one outer wall of the cutter holder 113A,
A rack 122 formed between both ends of the cam follower arm 93 in parallel with the wire 115, and a cutter pinion 1 that is engaged with the rack 122 and is integrally provided on the moving cutter 111.
21 and a driven pulley 118A in place of the idle pulley 118, the pulley holder 119 and the compression spring 120 of the moving cutter mechanism 110 are mainly different.

The cutter holder 113A is the cutter holder 1
It has a shape in which 13 is turned upside down. The cutter holder 113A has a cutting means attachment portion 93A whose shape is changed.
The movable cutter 111 is rotatably supported via the cutter shaft 114 and is slidable in the arrow LR direction by the engagement similar to that of the modification 2 with respect to a. The wire 115 will be described with reference to FIG. 22.
Motor pulley 117, which is rotatably supported by
And the driven pulley 118A. (Embodiment 2) The present invention can also be applied to the stencil plate making and printing apparatus 250 described in Japanese Patent Application No. 5-328898 previously proposed by the applicant of the present application, and Embodiment 2 thereof will be described. (Example of the invention according to claims 5 to 11).

First, the schematic construction and operation of the stencil plate making and printing apparatus 250 will be described. By the way, as shown in FIG. 24, the stencil plate making / printing apparatus 250 includes a printing drum 5 supported by a frame 251, a master 1 wound around an outer peripheral surface thereof and rotating around a rotation center axis 6, and a printing drum 5.
Ink supply means 29 for supplying ink to the inner peripheral surface of the plate, and plate supply roll shaft support means for supporting the core tube 2s of the plate supply roll 2 for winding the master 1 on the printing drum 5 around which one end of the master a is wound. 66, a plate feeding unit 180 rotatable about the same axis as the rotation center shaft 6 with respect to the printing drum 5 and having a plate feeding roll shaft support means 66, and a master 1 supported on the apparatus main body side. A thermal head 4 as a plate making means for making a plate, a clamping means 170 for clamping the other end of the master 1, and a rotation about the same axis as the rotation center axis 6 with respect to the printing drum 5 and the plate feeding unit 180. The clamper unit 200 that supports the clamp means 170 and the used master 1b that is supported on the apparatus main body side is separated from the outer peripheral surface of the printing drum 5 and stored as a plate discharge storage means. The plate 100 is supported on the apparatus body side provided near the plate discharge device 100 is mainly composed of the cutter unit 140. to cut the peel already master 1c.

The components having the same functions and configurations as those of the first embodiment and the modified examples 1 and 2 of the components of the stencil plate making and printing apparatus 250 are designated by the same reference numerals. 1 to 19 of the original components of the stencil type plate making and printing apparatus 250, which are the same as those of the first embodiment of the present application and overlap with those of the first embodiment, etc. The components added with the numeral 100 are distinguished from the components of the first embodiment and the like. In the figure, reference numerals 118a, 1
18b is a plate feeding arm pair 117 with the printing drum 5 interposed therebetween.
2A and 2B show a pair of clamper arms arranged outside the a and 117b. Reference numeral 19 is a plate ejection assisting plate, and reference numeral 113 is a locking hole into which a guide pin (both not shown) of the plate feeding arm positioning locking means having the same structure as the plate discharging arm stopping means 35 selectively projects and fits. Reference numeral 156 is a drawing roller that constitutes the plate discharge apparatus 100, and reference numeral 157 is a winding roller that constitutes the plate discharge apparatus 100 as a plate discharge accommodating means and rotates in pressure contact with the drawing roller (hereinafter referred to as the drawing roller 156 and the winding roller. 157 is a plate discharge roller pair 1
56 and 157), reference numeral 140 indicates a cutter unit as a cutting means. Plate ejection roller pair 15
Reference numerals 6 and 157 are made of synthetic rubber and are provided so as to extend in a direction parallel to the length direction of the rotation center shaft 6, and are provided on the shaft 157s of the winding roller 157 via a rotation transmission member such as a gear. It is rotationally driven by the connected plate discharge roller motor 158. A pair of plate discharge arms 153 made of aluminum alloy are provided at both ends of the plate discharge roller pairs 156, 157, and the shafts 156s and 157s are rotatably supported between the plate discharge arms 153. .

The reference numeral 120 designates the plate discharge device 10 during plate discharge.
Used master 1 on the outer peripheral surface of the printing drum 5 by displacing 0
For selectively displacing the plate discharging device 100 between a peeling plate discharging position for peeling b (shown by an imaginary line in the drawing) and a non-peeling plate discharging position (shown by a solid line in the drawing) separated from the peeling plate discharging position during non-plate discharging The stencil sheet ejection means displacement mechanism is shown. The plate discharge accommodating means displacement mechanism 120 is mainly composed of a DC motor 160 connected to a shaft 151s of the cam 151, a cam 151, and a spring 152.

Reference numeral 130 indicates the cutter unit 1 when the plate is discharged.
The cutter unit 140 is selectively placed between a cutting position (indicated by a phantom line in the figure) located near the plate ejection position by displacing 40 and a non-cutting position (indicated by a solid line in the figure) separated from the cutting position when the plate is not ejected. 3 shows a cutting means displacement mechanism for displacing the cutting means. The cutting unit displacement mechanism 140 is the plate discharge unit displacement mechanism 1.
It is constructed in the same way as 20.

Next, the description of the characteristic and detailed structure and operation of the stencil plate making / printing apparatus 250 will be omitted, and only the outline will be described. In the master initial setting, first, the plate feeding roll shaft supporting means 66 of the plate feeding unit 180 stopped at the plate feeding position of FIGS. 24 and 25 is operated through the core tube 2s by the operation of the plate feeding arm positioning locking means. Of the master 1 is set on the clamp means 170 from the plate feed roll 2 supported by the printing drum 5 and the clamper unit 2 by the driving force supplied from the drum driving means (not shown).
00 is rotated as a unit in the direction of arrow B, and master 1
Is wound around the outer peripheral surface of the printing drum 5 without causing wrinkles.

Next, referring to FIG. 26, the plate feeding arm pair 1
17a, 117b and clamper arm pair 118a, 118
b is integrally connected by the plate feeding / discharging arm joining means 40. Next, in FIG. 27, plate making and plate discharging are performed at the same time. Since the plate-making operation is the same as that in the first embodiment, its description is omitted. Simultaneously with the plate making operation, on the clamper unit 200 side, the clamper 174 is rotated in the direction shown in the figure, the clamper 174 is released from the plate ejection auxiliary plate 191, and is held in the plate ejection position state shown in the figure. Next, the plate discharge device 100 occupies the plate discharge position by the operation of the plate discharge means displacement mechanism 120, and at the same time, the cutter unit 140.
Are simultaneously displaced to positions occupying the cutting position by the operation of the cutting means displacement mechanism 130. Thus, the pull-in roller 156 of the plate discharge roller pair 156, 157
However, the used master 1b to which the ink is attached is pressed in the rotational direction, and the leading end of the peeled master 1c is gripped by the nip of the rotating plate discharge roller pair 156, 157 and is peeled and conveyed, and the plate is continuously discharged. , Storage box 1
It is stored in 55.

During plate making and plate discharge, only the printing drum 5 is rotated in the direction of arrow B in the figure by the driving force supplied from the drum driving means, and the plate feeding unit 180 and the clamper unit 20 are rotated.
0 is a state in which the connection with the print drum 5 is cut off by a clutch (not shown) and is fixed to the apparatus main body side.

In FIG. 17, after completion of plate making and plate discharge, the thermal head 4 is separated from the platen roller 3 by the operation of the thermal head contact / separation means 50. At the same time, the peeled master 1c is cut at a predetermined position by being moved in the width direction of the peeled master 1c by operating a cutter motor (not shown). Further, after the plate discharge is completed, the plate discharge device 100 and the cutter unit 140 are located at the positions where the plate discharge device 100 occupies the non-plate discharge position by the operation of the plate discharge means displacement mechanism 120.
The cutter unit 140 is simultaneously separated from the printing drum 5 to a position occupying the non-cutting position by the operation of the cutting means displacement mechanism 130.

Next, the plate feeding unit 180, the clamper unit 200, and the printing drum 5 are integrated, that is, the drum unit 240 is driven by the drum driving means shown in FIG.
It is rotated from the position state of 8 to the position state of FIG. At this time, the plate feeding unit 180 is rotated by the clutch and the clamper unit 200 is rotated by the clutch while being connected to the printing drum 5. 29 to 30, the printing process similar to that of the first embodiment starts.

Next, a second embodiment according to the invention described in claims 5 to 11 will be described with reference to FIGS. 31 to 33. In FIG. 31, reference numeral 300 indicates a stencil plate-making / printing apparatus of the second embodiment. The stencil printing plate making apparatus 300 according to the second embodiment is different from the stencil printing plate making printing apparatus 250 in that a cutter 94, a cutter holder 91, and a cutting means displacing mechanism 90 similar to those in the first embodiment are attached to the stencil printing plate making printing apparatus 250. The only difference is having. In FIG. 31, reference numeral 68A indicates
7 shows a plate feeding unit of Example 2.

Regarding the control configuration of the second embodiment, the points different from the first embodiment will be briefly described with reference to FIGS.

In FIG. 33, the stencil plate-making / printing device 30
The configuration of the operation panel 80A of No. 0 has a plate discharge storage key 159 in place of the plate discharge winding key 82 of the first embodiment, and replaces the plate discharge winding motor 56 with the plate discharge roller motor 158 and the DC of the plate discharge storing means displacement mechanism 120. Using the motor 160 as the control target element, and replacing the control means 75 with the control means 75A
The only difference is having.

The plate discharge storage key 159 sets a disconnection signal after the master 1M is disconnected by the cutter 94 when the master is abnormal as described above.

The control means 75A causes the drum driving motor M19 to rotate the printing drum 5 in the counterclockwise direction on the basis of the cutting signal for cutting the master 1M by the cutter 94, and at the same time, the plate discharge storing means displacing mechanism 120 is operated. By using the DC motor 160, the plate discharge roller pair 156 of the plate discharge device 100
It has a function of driving and controlling so that 157 occupies the peeling position, and one of the masters 1M cut by the plate discharge roller motor 158 is peeled from the outer peripheral surface of the printing drum 5 and stored.

Next, the operation of the second embodiment will be described. Similar to the first embodiment, when the master 1 is cut during plate making, plate discharge or printing, or the master 1 is wound around the printing drum 5 by a processing operation such as jamming of the printing paper P.
When a master abnormal state occurs such as a wrinkle caused by curling or breaking, a master cutting operation and a master plate discharge storing operation after master cutting are automatically performed.

First, the master disconnection operation will be described. When the operator presses the master cut key 81 on the operation panel 80A,
A master disconnection preparation signal is transmitted to the control means 75A, and the master disconnection indicator 81D is turned on by a command signal from the control means 75A based on this master disconnection preparation signal. Based on the master cutting preparation signal and the print drum position data signal from the print drum position sensor 76, the control means 75A causes the drum drive motor M19 to move the plate supply unit 68 and the plate discharge unit 69 to the positions shown in FIGS. Control is performed to occupy the fixed position state shown.

Then, the cutting means displacing mechanism 90 is driven and controlled by the control means 75A as in the first embodiment, the cutter 94 occupies the cutting position, and the master 1M is cut.

Next, the master discharged plate storing operation after master cutting is performed. First, when the operator confirms the disconnection completion state of the master 1M and then presses the master disconnection key 81 again, a master disconnection completion signal is transmitted to the control means 75A, and the control means 75A sends the master disconnection completion signal based on the master disconnection completion signal. The master disconnection display 81D is turned off by the command signal. Then, the control means 75A drives and controls the cutting means displacement mechanism 90 based on the master cutting completion signal in the same manner as in the first embodiment, the cutter 94 occupies the non-cutting position, and the cutting means displacement mechanism 90 returns to the initial position state. To do.

Next, the master discharged plate storing operation after cutting the master is performed. When the operator presses the plate discharge storage key 159, a disconnection signal is transmitted to the control means 75A. Based on this cutting signal, the control means 75A causes the drum drive motor M19, the DC motor 160, and the plate discharge roller motor 158.
Drive control. That is, the drum drive motor M is driven by the command signal from the control means 75A based on the disconnection signal.
19 is rotationally driven, and only the print drum 5 is rotated in the counterclockwise direction (direction of arrow B in the figure). At this time, the plate feeding unit 180 and the clamper unit 200 are in a state of being disconnected from the printing drum 5 by the clutch and being fixed to the apparatus main body side. On the other hand, in synchronism with the rotation operation of only the printing drum 5, the DC motor 1 is driven by a command signal from the control means 75A based on the disconnection signal.
By driving 60, the cam 151 is rotated, and the large diameter portion of the cam 151 and the upper wall of the plate ejection arm 153 are brought into sliding contact with each other, so that the plate ejection roller pair 156, 15 of the plate ejection device 100 is engaged.
7 occupies the peeling and discharging position.

At about the same time as this, the plate discharge roller motor 158
Is driven, and the pull-in roller 156 of the plate discharge roller pair 156, 157 causes the used master 1 to which the ink has adhered.
Pulled in the direction of rotation while pressing b, peeled master 1
The leading end of c is gripped by the nip of the rotating plate discharge roller pair 156, 157, and the plate is continuously peeled and conveyed, and the plate is continuously discharged. The storage operation ends.
Immediately after the end of the master discharged plate storing operation, the control means 7 has a predetermined time.
The above-mentioned timer in 5A counts and the driving of the plate discharge roller motor 158 is stopped. And the DC motor 1
By driving 60, the cam 151 is rotated and the sliding contact engagement between the large diameter portion of the cam 151 and the upper wall of the plate ejection arm 153 is released, and the biasing force of the spring 152 causes the plate ejection roller pair of the plate ejection device 100 to be released. 156 and 157 occupy the non-peeling plate discharge position, and the cutter unit 140 occupies the non-cutting position by the operation of the cutting means displacing mechanism 130.

Explaining with reference to FIG. 24, at the master attachment / detachment position shown in FIG. 24, the plate feed roll 2 is removed from the plate feed roll shaft support means 66 via the core tube 2s and replaced with a new one.

As a modification of the second embodiment, the first embodiment will be described.
Characteristic configuration of the first modified example, that is, the heating wire 10
2, the cutting means displacing mechanism 90A, the heat ray receiving base 104 and the like and the control components surrounded by broken lines in FIG. 32 are added to the stencil plate making and printing apparatus 250, respectively. Similarly, as a modified example of the second embodiment, the characteristic configuration of the second modified example of the first embodiment, that is, the moving cutter 111, the moving cutter mechanism 110, the cutting means displacing mechanism 90, the cutter cradle 91 and the like, and FIG. It can be configured by adding control components surrounded by virtual lines to the stencil plate making and printing apparatus 250. Also,
The stencil sheet discharging means displacing mechanism 120 is merely one example, and is a combination of a mechanism having a similar function excellent in design, for example, a cam like the thermal head contacting / separating means 50, a spring and a lever structure. It goes without saying that it may be one.

The present invention can also be applied to the stencil plate-making / printing apparatus 200 disclosed in, for example, Japanese Patent Laid-Open No. 6-328831 proposed by the applicant of the present invention, in accordance with the second embodiment described above. Yes (Claims 4 and 6 to 1
Example of the invention described in 1). By the way, the stencil plate making / printing apparatus 200 includes a printing drum on which a master is wound around the outer peripheral surface, a drum driving means for rotationally driving the printing drum, and an ink supplying means for supplying ink to the inner peripheral surface of the printing drum.
A master supply unit that supplies the master to the printing drum, a plate-making unit that makes the master plate, and a tip that is provided on the outer peripheral surface of the printing drum, and holds the tip of the master between the outer peripheral surface of the printing drum. A clamper, a plate discharge accommodating means that is supported on the apparatus main body side and separates and stores a used master from the outer peripheral surface of the printing drum, and a printing drum of a printing drum that is supported by the apparatus main body side and is provided in the vicinity of the plate discharge accommodating means. A cutting unit that cuts the peeled master that has been peeled from the outer peripheral surface, and a plate feeding unit that is rotatable around the rotation center axis of the printing drum with respect to the printing drum and that has a master supply unit are provided.

The master cutting means of the first embodiment is not limited to this as long as the advantage of the cutter 94 can be ignored, and the cutter receiving base 91 is provided with a fixed blade and the cutting means is displaced. A so-called guillotine type in which a movable blade is fixedly attached to the mechanism 90 side may be used.

The pair of rubber plates 96c and 96d of the pressing means 99 in the above-mentioned embodiments and modified examples are not limited to this, and foam sponges or the like may be attached to the rubber plates 96c and 96d before cutting. Any material may be used as long as it contacts the master 1M and gives an appropriate frictional force. Further, instead of the pressing means 99, a flexible member such as a foaming sponge having a predetermined thickness may be directly provided on the outer surface of the cutting means attaching portions 93a and 93Aa. In this case, the pressing means 99 is used.
There is an advantage that the configuration can be simplified without losing the function of.

Furthermore, if the master 1M is appropriately stretched and the advantages of the holding mechanism may be ignored, the holding mechanism in the above-described embodiments and modifications is not indispensable, and is eliminated. Good. In this case, the number of parts can be reduced, and the cutter holder 91 provided in the plate supply unit or the plate supply / discharge plate unit can be eliminated, so that the inertia moment (inertia force) of the plate supply unit or the plate supply / discharge plate unit can be eliminated. ) Is suppressed without increasing as much as possible, and it is advantageous to suppress the vibration and noise of the printing drum and the drum unit including the printing drum during printing.

The control means of the control means 75, 75A has two master cutting keys 81 and two plate discharge winding keys 8 as in the control construction of the first or second embodiment and the modified example.
2, or master cut key 81 and plate discharge storage key 15
As long as it has 9, it is not limited to the above-mentioned microcomputer, and the
It may be composed of an electronic control circuit or the like.

Incidentally, the returning operation of the plate feeding unit 68 and the plate discharging unit 69 to the fixed position state at the time of the master cutting operation is not limited to the above-mentioned control operation of the control means 75, and the plate feeding unit 68 is also possible. Also, a dedicated key for setting the return / start of the plate discharge unit 69 to the fixed position may be provided.

In addition to this, as in the above-described embodiments and modifications, the pressing operation of the master cutting key 81 twice is not always necessary, and after one pressing operation, the plate discharge winding key 82 or By pressing the plate discharge storage key 159, a cutting signal after the master 1M is cut by the master cutting means such as the cutter 94, the heating wire 102, or the moving cutter 111 may be generated. That is, the DC motor M9
Each operation program, each operation timing, and each operation time from the start of the rotation driving of No. 2 to the completion of disconnection of the master 1M and the stop of the rotation driving of the DC motor M92 after the cam follower arms 93 and 101 have returned to the initial positions are stored in the control means 75. R above
The master 1 by the master cutting means is pressed by pressing the plate discharge winding key 82, which is stored in the OM in advance and is appropriately counted by the timer.
A disconnection signal after disconnecting M may be generated.

Further, the plate discharge winding key 82 or the plate discharge storage key 159 is not always necessary as in the above-described embodiments and modifications, and may be omitted as long as it is constructed as follows. That is, by only pressing the master cut key 81 once, that is, the DC motor M9
2 is set, then the rotation drive of the DC motor M92 is started, the disconnection of the master 1M is completed, and the cam follower arm 9
3, the rotation driving stop of the DC motor M92 after returning to the initial position, each operation program up to the master winding operation after master cutting, each operation timing, and each operation time are controlled by the control means 7.
5, which is stored in advance in the ROM in 5 and is appropriately counted by the timer, automatically generates a disconnection signal after the master 1M is disconnected by each of the master disconnecting means, and the master disconnection operation is performed. The master winding operation or the master discharged plate storing operation may be automatically performed. That is, based on the master disconnection means, the master disconnection setting means (master disconnection key 159) for setting the start of the master disconnection operation of this master disconnection means, and the signal that the master 1M is disconnected, the drum drive means 70 (drum drive Motor M19) and plate discharge roll shaft drive means 60 (DC
Motor M92) or stencil sheet discharging means displacement mechanism 120
(DC motor 160) and control means (75 or 75A) for driving the plate discharge roller motor 158 may be provided (example according to claim 3 or 6).

In the first embodiment and each of the modified examples, the cam 92 of the cutting mechanism displacing mechanism 90, 90A and the roller 93R.
Although a pair of such members are provided, the present invention is not limited to this as long as the required strength and rigidity are secured, and the cam follower arm 9
It goes without saying that it may be provided only on one side of 3, 101.

Although the plate discharge arm stopping means 35 is provided only on the plate discharge arm 8a side in the first embodiment and the like, it is not limited to this and may be additionally provided on the plate discharge arm 8b side. Similarly, the plate feeding / discharging arm joining means 40 has the plate feeding arm 7b side and the plate discharging arm 8 in the first embodiment.
Although it is provided only on the b side, it is not limited to this and may be additionally provided on the plate feeding arm 7a side and the plate discharging arm 8a side.

In Example 1 etc., the thickness of the master is 3 μm.
However, it can be used in a good condition even when the thickness is 2 to 10 μm. Further, in Example 1 and the like, the master substantially consisting of the thermoplastic resin film was used, but the present invention is not limited to this, and a conventional stencil master using Japanese paper or the like as the porous flexible support can also be used. Needless to say.

The present invention is not limited to the double-arm stencil-type plate-making / printing apparatus 600 or 300 as in the first or second embodiment and the above-mentioned respective modifications, but is, for example, the single disclosed in Japanese Patent Publication No. 5-70595. It can also be applied to an arm-type rotary printing press. That is, the present invention
A printing drum around which a master is wound around an outer peripheral surface, a drum driving unit that rotationally drives the printing drum, an ink supply unit that supplies ink to the inner peripheral surface of the printing drum, and a master that supplies the master to the printing drum. A master supply unit, a plate making unit for making the master plate, a discharge plate winding unit for winding the used master from the outer peripheral surface of the printing drum, and a rotation unit for rotating the printing drum around the rotation center axis of the printing drum. In a stencil type plate making and printing apparatus which is movable and comprises a master supply unit and a plate supply / discharge unit having the plate discharge winding unit, in a state where the master is wound around the printing drum, the master is set to the master. Any configuration may be adopted as long as it has a master cutting means for cutting between the supply section and the winding start position of the master on the outer peripheral surface of the printing drum (claim 2).
See the described invention).

Here, "the plate feeding / discharging unit which is rotatable about the central axis of rotation of the printing drum with respect to the printing drum and has a master supply section and a plate discharge winding section" means
The first embodiment and the like, that is, "a plate feeding unit 68 that is rotatable about the rotation center axis 6 with respect to the printing drum 5 and has a plate feeding roll shaft support means 66, and a rotation center axis 6 And a plate discharge unit 69 which is rotatable with respect to the printing drum 5 and the plate supply unit 68 and has a plate discharge roll shaft support means 67. "
As in the invention described in Japanese Patent No. 0595, "at least one end of the stencil sheet 10 is wound into a roll and accommodated therein, and the stencil sheet 1 from the stencil sheet supplying section 12 is stored.
No. 0 for winding and containing the plate discharge winding unit 15, and includes a plate discharge unit 9 which is rotatable relative to the peripheral wall 1c of the plate cylinder 1, and also includes JP-A-6-270524. As described in the publication, "a plate feeding unit that is rotatable with respect to the printing drum about the same axis as the rotation center axis and holds the master supply roll, and And a plate discharge unit that is rotatable around the print drum and the plate supply unit and holds the plate discharge winding roll. "
-47755, "Paper feeding and discharging unit that supports the plate feeding roll supporting means and the plate discharging roll supporting means, and is rotatable around the rotation center axis with respect to the printing drum". Also includes.

In the present invention, the master cutting means cuts the master between the master supply section and the winding start position of the master on the outer peripheral surface of the printing drum, as in the first or second embodiment and the above-described modifications. It is not always necessary to displace between the cutting position and a non-cutting position separated from the cutting position, and to have a cutting means displacing mechanism for displacing the master cutting means between the cutting position and the non-cutting position on the apparatus main body side. Not necessary. That is, if the above-described advantages of the configuration are not desired, for example, the pressing means 99 may be removed and the moving cutter mechanisms 110, 1 may be removed.
10A is a plate feeding arm pair 7a, 7b, 117a, 117b that does not hinder the winding operation of the master 1 on the printing drum 5 and the winding operation of the master 1 from the printing drum 5.
It may be arranged as a home position near the end of the printing drum 5 such as the above.

As can be immediately inferred from what has been described above, according to the present invention, the print drum on which the master is wound around the outer peripheral surface, the drum drive means for rotating the print drum, and the print drum are provided. An ink supply means for supplying ink to the peripheral surface, a master supply part for supplying the master to the printing drum, and a plate making means for making a plate for the master,
A plate discharge unit for separating the used master from the outer peripheral surface to discharge the plate, and a plate supply / discharge unit that is rotatable around the rotation center axis of the print drum with respect to the print drum and has at least the master supply unit. In a stencil plate making and printing apparatus provided, a master for cutting the master between the master supply unit and a winding start position of the master on the outer peripheral surface of the print drum in a state where the master is wound around the print drum. Any structure may be used as long as it has a cutting means (see the invention according to claim 1).

More specifically, the present invention disregards the annoyance of worrying that the hands and the inside of the device are contaminated by the ink attached to the master, as in the first or second embodiment and the above-mentioned modifications. If possible, a master cutting for cutting the master between the master supply section and the winding start position of the master on the outer peripheral surface of the print drum in a state where the master is wound around the print drum. It does not need to be a configuration having a means, “in the state where the master is wound around the print drum, the master is provided between the master supply unit and the winding start position of the master on the outer peripheral surface of the print drum. , Using scissors, a cutter knife, the above-mentioned hot wire cutter, electric rotating blade, etc., or in combination with a copying jig for facilitating cutting, After cut by the dynamic operation, etc., it may be to perform a master winding operation after the master cut as described above.

[0166]

As described above, according to the first and second aspects of the present invention, with the above configuration and operation, when the master abnormal state occurs, the master is cut while the master is wound around the print drum. By cutting the master between the master supply section and the winding start position of the master on the outer peripheral surface of the printing drum by the means, one of the cut masters is placed on the plate discharge winding section (plate discharge roll) side of the plate discharging means. , The other master that has been cut is divided separately into the master supply unit (plate feed roll), so it is possible to remove the plate discharge roll on which the one master that was cut is wound and the other plate feed roll that has been cut. It will be easier.

Further, even when the plate supply roll and the plate discharge roll are replaced due to an abnormality of the master wound around the printing drum, it is troublesome to worry that the ink adhered to the master stains the hands and the inside of the apparatus. Since the master plate on the plate feed roll side does not have ink adhered to it, the master plate on the plate feed roll side does not stain the hands with the ink non-adhered master, and The ink non-sticking master remaining on the roll side can be used without waste.

According to the third aspect of the present invention, with the above configuration and operation, after the master is cut, the master wound around the printing drum is automatically wound around the plate discharge roll shaft, so that the master is kept clean. Can be exchanged.

According to the invention described in claims 1, 4 and 5,
With the above configuration and operation, when the master abnormal state occurs, the master is wound around the print drum,
The master cutting unit cuts the master between the master supply unit and the winding start position of the master on the outer peripheral surface of the printing drum, so that one of the cut masters is held and held by the clamper or the clamp unit of the plate discharging unit. The other master thus cut is divided into the master supply unit (plate feed roll) side separately, so that the other cut plate feed roll can be easily removed. One of the cut masters or the master on the side of the clamp means is discharged and stored by the discharged plate storing means (plate discharging device), so there is no need to worry about the ink adhering to the master getting the hands or the inside of the device dirty. The plate can be discharged.

Further, even when the plate feed roll is replaced due to an abnormality of the master wound around the printing drum, one of the cut masters or the master on the side of the clamping means is
Since the plate discharge storage means (plate discharge device) stores the plate discharge,
You can eject the plate without the hassle of worrying that your hands and the inside of the device will get dirty with the ink attached to the master, and since the master on the plate feed roll side has no ink attached,
It is possible to use the ink non-adhesion master remaining on the plate feed roll side without waste of hands and the master, and to use the ink non-adhesion master remaining on the plate feed roll side without waste.

According to the sixth aspect of the present invention, with the above configuration and operation, after the master is cut, the master wound around the printing drum is automatically peeled / peeled by the rotation of the pair of plate discharge rollers.
As it is stored, the master can be replaced without getting your hands dirty.

According to the seventh aspect of the invention, the master cutting means includes a cutting position for cutting the master between the master supply section and the winding start position of the master on the outer peripheral surface of the printing drum, and a non-position separated from the cutting position. Since it is displaceable between the cutting position and the cutting means displacing mechanism for displacing the master cutting means between the cutting position and the non-cutting position is provided on the apparatus main body side, It does not hinder the winding. Further, since the moment of inertia (inertial force) of the plate feeding / discharging unit having at least the master supply unit is not increased, vibration or noise of the printing drum or the like during printing can be suppressed.

According to the eighth aspect of the invention, since the master pressing mechanism for pressing the master is arranged near the cutting portion of the master, the master pressing mechanism prevents the master from moving before the master is cut. Since it is held down, the master can be cut reliably and easily.

According to the invention described in claim 9, in addition to the above effects, a master pressing mechanism is provided in the vicinity of the master cutting means for pressing the master before cutting, and the feeding / discharging unit. It consists of a pressed means that is provided near the cutting part and holds the master before cutting between it and the pressing means, so that the master cut by the master pressing mechanism does not move even after cutting the master. Since it is held by, it is possible to remove the master wrapped around the printing drum by grasping the place where the ink of one of the cut masters does not adhere. Further, since the moment of inertia (inertial force) of the plate feeding / discharging unit having at least the master supply section can be suppressed without increasing as much as possible,
It is advantageous for suppressing vibration and noise of the printing drum during printing.

According to the eleventh aspect of the invention, in addition to the above respective effects, the pressing means is located upstream of the cutting portion in the rotational direction of the printing drum rotated during plate discharge, and the holding means is the cutting portion. By being provided at least on the upstream side, respectively, the weight and cost of the device can be further reduced.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional front view of a main part of a stencil-type plate making and printing apparatus showing Embodiment 1 of the present invention.

FIG. 2 is a front view showing an enlarged main part of FIG.

FIG. 3 is a perspective view showing an external configuration of a cutter receiving stand according to the first embodiment.

FIG. 4 is a perspective view of a main part around a cutter and a pressing unit according to the first embodiment.

FIG. 5 is a front sectional view around a drum unit according to the first exemplary embodiment.

FIG. 6 is a partial cross-sectional front view around the platen roller drive mechanism of the first embodiment.

FIG. 7 is a plan view of a plate feeding / discharging arm joining unit according to the first embodiment.

FIG. 8 is a partial cross-sectional front view of FIG.

FIG. 9 is a partial cross-sectional plan view of the plate discharge arm stopping means of the first embodiment.

FIG. 10 is a partial cross-sectional side view of the plate discharge roll and the plate discharge roll shaft support means of the first embodiment.

FIG. 11 is a block diagram showing a control configuration of the first embodiment, modified examples 1 and 2.

FIG. 12 is a plan view showing a configuration of an operation panel according to the first embodiment and modified examples 1 and 2.

FIG. 13 is a front view of the main part showing the operation of the master initial setting.

FIG. 14 is a front view of a main part showing a preparatory process before plate making in which a plate supply arm and a plate discharge arm are integrally coupled.

FIG. 15 is a front view of the main part showing the operation during plate making and plate ejection.

FIG. 16 is a front view of the main part showing the operation at the end of plate making and plate discharge.

FIG. 17 is a front view of the main part showing the operation during printing.

FIG. 18 is a front view of the main part showing the operation during printing or the like.

FIG. 19 is a front view of a main part of a stencil plate making and printing apparatus showing a first modification of the first embodiment.

FIG. 20 is a perspective view showing an outer appearance around a heat ray of modified example 1.

FIG. 21 is a front cross-sectional view of a moving cutter and a main part around a moving cutter mechanism according to a second modification of the first embodiment.

22 is a view on arrow V21 in FIG. 21. FIG.

FIG. 23 is a front sectional view of a moving cutter and a main part around a moving cutter mechanism in another modification of Modification 2;

FIG. 24 is a partial cross-sectional front view of a main part of a stencil type plate making / printing apparatus to which a second embodiment of the present invention is applied.

FIG. 25 is a front view of the essential parts showing the operation of the stencil plate making and printing apparatus to which the second embodiment of the present invention is applied.

FIG. 26 is a front view of the main part showing the operation of the stencil plate making and printing apparatus to which the second embodiment of the present invention is applied.

FIG. 27 is a front view of the main parts showing the operation of the stencil plate making and printing apparatus to which the second embodiment of the present invention is applied.

FIG. 28 is a front view of the main part showing the operation of the stencil plate making and printing apparatus to which the second embodiment of the present invention is applied.

FIG. 29 is a front view of the main parts showing the operation of the stencil plate making and printing apparatus to which the second embodiment of the present invention is applied.

FIG. 30 is a front view of the main part showing the operation of the stencil plate making and printing apparatus to which the second embodiment of the present invention is applied.

FIG. 31 is an enlarged front view of the main part of the stencil plate making and printing apparatus showing the second embodiment.

FIG. 32 is a block diagram showing a control configuration of the second embodiment and its modification.

FIG. 33 is a plan view showing a configuration of an operation panel according to the second embodiment and its modification.

[Explanation of symbols]

1 Master 1a Plate-making master 1b Used master 1M Master between the master supply unit and the winding start position of the master on the outer peripheral surface of the printing drum 2 Plate supply roll 2s Core tube as plate supply roll shaft that constitutes the master supply unit 2U Unused plate feeding roll 3 Platen roller 4 Thermal head as plate making means 5 Printing drum 6 Rotation center axis 7a, 7b Plate feeding arm pair 8a, 8b Plate discharging arm pair 9 Winding as plate discharging roll shaft constituting a plate winding unit Taking-up shaft 10 Plate discharge roll 29 Ink supply means 66 Plate supply roll shaft support means constituting a master supply section 67 Plate discharge roll shaft support means constituting a plate discharge winding section 68 Plate supply unit constituting a plate supply and discharge unit 69 A plate supply and discharge unit Constituent plate discharge unit 70 Drum drive means 90, 90A Cutting means displacement mechanism 94 As master cutting means Moving cutter as hot wire 111 master cutting means as the cutter 102 master cutting means

Claims (11)

[Claims] 1. A print drum around which a master is wound around an outer peripheral surface, and a drum drive means for rotating the print drum.
Ink supply means for supplying ink to the inner peripheral surface of the printing drum, a master supply section for supplying the master to the printing drum, plate making means for making the master of the master, and separating the used master from the outer peripheral surface. In a stencil-type plate-making printing apparatus comprising a plate discharging unit for discharging a plate and a plate supplying / discharging unit having at least the master supply unit, which is rotatable with respect to the printing drum about a rotation center axis of the printing drum, With the master wound around the printing drum,
A stencil plate making / printing apparatus comprising: master cutting means for cutting the master between the master supply section and a winding start position on the outer peripheral surface of the master. 2. The stencil-type plate making and printing apparatus according to claim 1, wherein the plate discharge means comprises a plate discharge winding section arranged on the plate supply / discharge unit for winding the used master. Stencil printing machine. 3. The stencil printing machine according to claim 2, wherein the plate discharge winding section is provided with a plate discharge roll shaft for winding the used master into a roll to form a plate discharge roll. The master cutting unit has a plate discharge roll shaft driving unit that rotates a roll shaft, and a control unit that controls the driving of the drum driving unit and the plate discharging roll shaft driving unit based on a signal that the master is cut. After the master is disconnected by
A stencil-type plate making and printing apparatus characterized in that one of the masters wound and cut on the printing drum is automatically wound around the plate discharge roll shaft. 4. The stencil plate making and printing apparatus according to claim 1, wherein the plate discharging means is an openable and closable clamper that is provided on the outer peripheral surface and holds the tip of the master between the outer peripheral surface and the master. And a plate discharge storing means that is supported on the apparatus body side and stores the used master by peeling it from the outer peripheral surface, and an outer peripheral surface supported by the apparatus body side and provided in the vicinity of the plate discharge storing means. A stencil-type plate-making printing apparatus, comprising: a cutting unit that cuts the peeled master that has been peeled from the sheet. 5. The stencil-type plate-making printing apparatus according to claim 1, wherein the plate discharge means is an openable / closable clamp means for holding the leading end portion of the master, the printing drum and the feeding device around the rotation center axis. It comprises a clamper unit which is rotatable with respect to the plate discharge unit and has the clamp means, and a plate discharge storage means which is supported on the apparatus main body side and which stores the used master by peeling it from the outer peripheral surface. Characteristic stencil plate making and printing equipment. 6. The stencil plate making and printing apparatus according to claim 4 or 5, wherein said plate discharge accommodating means is provided with a pair of plate discharge rollers which rotate in pressure contact with each other, and rotate said plate discharge rollers. Drive means, and a control means for controlling the drive of the drum drive means and the plate discharge roller drive means based on the signal that the master is cut, after the master is cut by the master cutting means,
A stencil-type plate making and printing apparatus, which automatically peels and stores one of the masters, which is wound around the printing drum and cut. 7. The stencil plate making and printing apparatus according to any one of claims 1 to 6, wherein the master cutting means is provided between the master supply section and a winding start position of the master on the outer peripheral surface. A cutting means displacing mechanism for displacing the master cutting means between the cutting position for cutting the master and the non-cutting position separated from the cutting position is arranged. A stencil-type plate-making / printing device, which is provided on the main body of the device. 8. A stencil-type plate-making printing apparatus according to claim 1, wherein a master pressing mechanism for pressing the master is provided in the vicinity of a cut portion of the master. Plate-type plate-making printing device. 9. The stencil printing machine according to claim 8, wherein the master pressing mechanism is provided in the vicinity of the master cutting means, and holds the master before cutting and holds the master before cutting. A stencil-type plate-making printing apparatus comprising: a pressing means provided near the cutting part of the unit for holding the master before cutting between the pressing means and the pressing means. 10. The stencil-type plate-making printing apparatus according to claim 9, wherein the pressing means is provided on the cutting portion at the upstream side and the downstream side in the rotation direction of the printing drum rotated at the time of plate discharge. Are provided on the upstream side and the downstream side of the cutting section, respectively. 11. The stencil-type plate-making printing apparatus according to claim 9, wherein the pressing means is located upstream of the cutting portion in the rotational direction of the printing drum rotated during plate discharge, A stencil plate making / printing apparatus, which is provided at least on the upstream side of the cutting section.