JP2843239B2 - Stencil printing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stencil printing machine for performing printing by winding a master perforated by a heating element such as a thermal head.

[0002]

2. Description of the Related Art Digital thermosensitive stencil printing is known as a simpler printing method. This is achieved by bringing a thermal head, in which fine heating elements are arranged in a row, into contact with a heat-sensitive stencil master (hereinafter referred to as the “master”) and conveying the master while energizing the heating elements in a pulsed manner. After the master is melted and perforated, the master is wound around the outer peripheral surface of a porous cylindrical plate cylinder, and then the ink is transmitted through the perforated portion and transferred to paper to form a printed image.

In the stencil printing machine used for this printing,
A plate discharging operation in which the used master wound on the outer peripheral surface of the plate cylinder is peeled off and discarded in a plate discharging box, a plate making operation in which the master is melt-punched by a thermal head and transported by a platen roller, and a plate-formed master is wound around the plate cylinder Printing is performed through a series of operations such as a plate feeding operation for mounting and a printing operation for forming a print image on the printing paper fed by the paper feeding device.

Conventionally, in stencil printing, printing is started by an operator of the stencil after setting an original on the main body of the apparatus and turning on a stencil start switch. After the stencil printing is completed, the stencil making is started. A plate feeding operation is performed in parallel with the operation, and a printing operation is performed after the plate feeding operation is completed.

However, in this apparatus, the plate making operation is performed after the plate discharging operation is completed. Therefore, it is necessary to wait for the completion of the plate discharging operation at the time of making the next plate, and a series of operations are performed after the operator turns on the plate making start switch. First print time, which is the time until the first printed matter is discharged
There is a problem that the time (hereinafter, referred to as “FPT”) becomes long.

Accordingly, a technique for providing a master stock means for storing a master made by plate making and performing a plate making operation in parallel with a plate discharging operation is disclosed in JP-A-61-287778, and a similar technique is disclosed in JP-A-61-26088. Gazette and JP-A-62-2
No. 25080, respectively.

[0007]

However, Japanese Patent Application Laid-Open No.
According to the techniques disclosed in Japanese Patent Application Laid-Open Nos. 1-287781, 61-26088 and 62-25080, a master stock unit occupies a large space in a printing apparatus, and the apparatus becomes large. There is a problem. Further, according to the techniques disclosed in the above publications, since there is no guide plate between the master feeding means and the master feeding means, when the operator sets a new master in the apparatus, the operator himself sets the platen. There is a problem that the master must be pulled out and set over a long distance from the roller and the master feeding means to the master feeding means.

Further, according to the techniques disclosed in the above publications, the master-made means stores the pre-made master in a meander shape only by its own weight, so that the pre-made master easily jams in the master stock means. Japanese Patent Application Laid-open No. Sho 61
In the case where the technology disclosed in FIG. 3 or FIG. 4 of Japanese Patent Application Publication No. 287871 is applied to forcibly store the masters which have been made, the mechanism of the master stock means becomes complicated, resulting in an increase in cost. There is.

The present invention solves the above problems, reduces the FPT by performing the plate discharging operation and the plate making operation in parallel, prevents the jam of the plate-making master, and saves the master stock length with a small space. And a stencil printing apparatus capable of sufficiently securing the stencil.

[0010]

According to the first aspect of the present invention,
A porous rotatable plate cylinder having a clamp means for locking one end of a plate-making master on an outer peripheral surface, a master storage means for storing a roll-wound master, and a master from the master storage means. Plate making means for selectively heating and perforating according to image information, and cutting means for cutting the master,
A master stock means disposed between the plate cylinder and the cutting means, and having an opening at a lower portion for receiving the pre-made master and storing the pre-made master therein; the cutting means and the master; It is arranged between the stock means,
Master feeding means for transporting the prepressed master to the master stock means, and master feeding means provided between the plate cylinder and the master stock means for transporting the prepressed master toward the clamping means. A stencil printing apparatus provided, between the master feeding means and the master feeding means, disposed below the opening, and a guide plate for guiding the stencil master; and And an introduction means for introducing the conveyed master into the master stock means from the opening.

According to a second aspect of the present invention, in the stencil printing machine of the first aspect, the master stock means is substantially box-shaped, and is provided with an openable / closable lid on an upper portion thereof. .

According to a third aspect of the present invention, in the stencil printing apparatus of the first aspect, the master stock means further includes a guide plate for dividing an internal space into at least two in the vertical direction. And

[0013]

According to the first aspect of the present invention, at the time of initial setting of the master, the master is conveyed by the master feeding means and reaches the master sending means through the guide plate. Assist the introduction of completed masters into master stock means.

According to the second aspect of the present invention, the inside of the master stock means can be confirmed from the outside by opening and closing the lid.

According to the third aspect of the present invention, since the guide plate divides the space in the master stock means, it is possible to prevent the masters having been made from overlapping each other.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1 showing an embodiment of the present invention, a plate cylinder 1, which is driven to rotate by a driving means (not shown), has a clamper 2 on its outer periphery as a clamping means for locking the tip of a master. doing. The clamper 2 is pivotally attached to the outer peripheral surface of the plate cylinder 1 by a shaft 2a, and is rotatable by transmitting a driving force by opening / closing means (not shown). A well-known ink supply unit (not shown) is provided inside the plate cylinder 1.

At the upper right of the plate cylinder 1, a master storage means 3,
A plate making means 4, a cutting means 5, a master stock means 6, a master sending means 7, a master sending means 8, and a guide plate 9 are provided. The master storage unit 3 mainly includes a case 10, a master roll 11, a master support member 12, and the like. The case 10 is attached to the main body of the stencil printing apparatus. The core of the master roll 11 is supported by a master support member 12, and the master support member 12 is rotatably supported by a side plate (not shown) of the case 10.

A plate making means 4 comprising a thermal head 13 and a platen roller 14 is disposed on the left side of the position where the master roll 11 is disposed. Thermal head 13
The master 11 is attached to a side plate (not shown) of the stencil printing machine main body, and is pulled out from the master roll 11.
The melt-punching is performed on the master a to form the plate-making master 11b. The platen roller 14 is rotatably supported by a side plate of the main body of the stencil printing apparatus, is rotationally driven by a driving unit (not shown), and conveys the master 11a to the downstream side while pressing the master 11a against the thermal head 13.

Downstream of the plate making means 4 in the master transport direction,
A cutting means 5 including a movable blade 15 and a fixed blade 16 is provided. In the cutting means 5, the movable blade 15 rotates and moves with respect to the fixed blade 16, and cuts the master 11b which has been made.
On the downstream side of the cutting means 5 in the master transport direction, a master feeding means 7 including a feed driving roller 17 and a feed driven roller 18 is provided. The feed drive roller 17 and the feed driven roller 18 are rotatably supported by a side plate of the stencil printing apparatus main body, and the feed drive roller 17 is driven to rotate by driving means (not shown). The feed driven roller 18 rotates together with the feed drive roller 17.

On the downstream side of the master feeding means 7 in the master transport direction, there is provided a master sending means 8 comprising a sending drive roller 19, a sending driven roller 20, and a master guide plate 21. Delivery drive roller 19
The feed driven roller 20 is also rotatably supported on the side plate of the stencil printing apparatus main body in the same manner as the above rollers. The delivery driving roller 19 is driven to rotate by a driving unit (not shown), and the delivery driven roller 20 rotates together with the delivery driving roller 19. The master guide plate 21 is fixed to a side plate of the stencil printing apparatus main body, and guides the master 11b having been made by the master feeding means 8 to the clamper 2. A guide plate 9 is provided between the master feeding means 7 and the master feeding means 8. The guide plate 9 comprises a master feeding means 7 and a master feeding means 8.
Is fixed to the side plate of the main body of the stencil printer.

Above the cutting means 5, the master feeding means 7, the master feeding means 8 and the guide plate 9, a master stock means 6 is provided. The master stock means 6
As shown in FIG. 3, it mainly comprises a housing 22, a guide plate 23, a flexure sensor 24, a suction fan 25 as an introducing means, and the like. The casing 22 is formed of a metal plate, a resin plate, or the like, has a box shape in which a side plate 22e near the plate cylinder 1 is opened, and is attached to a side plate of the stencil printing apparatus. The upper plate 22a of the housing 22 is divided at a substantially central portion thereof, and is rotatably supported by a hinge or the like to form a lid 22b.
The lid 22b is openable and closable from the master storage means side to the plate cylinder side as shown by the solid arrow in FIG. Upper plate 22a and lid 2
Fins 22c are provided on the inner surface side of the housing 2b. A plurality of the fins 22c are provided so as to be parallel to the airflow generated in the housing 22 by the operation of the suction fan 25 described later. In addition, at the lower part of the housing 22 and at a position facing the guide plate 9,
An opening 22 d for introducing b into the housing 22 is formed over substantially the entire width of the housing 22.

A guide plate 23 is mounted near the plate cylinder 1 side of the opening 22d. The guide plate 23 is a bent plate material, and the width thereof is formed over the entire width of the inside of the housing 22. The guide plate 23 is provided with the master feeding means 7.
In order that the master 11b conveyed in step 2 does not escape to the upper portion of the feed-out drive roller 19 and that the master 11b is smoothly fed into the housing 22, the master storage from above the feed-out drive roller 19 is stored. It is provided on the means 3 side so as to extend upward inside the housing 22. A mounting plate 23a is fixed to a substantially central portion of the guide plate 23 so as to extend substantially horizontally toward the plate cylinder 1, and the plate-making master 11 is attached to the mounting plate 23a.
A bending sensor 24 composed of a photoelectric sensor for detecting that b has been sent into the housing 22 is attached. The guide plate 23 has a hole (not shown) through which the optical axis of the bending sensor 24 passes.

A cover 25a for supporting the suction fan 25 is attached to the side plate 22e on the side of the plate cylinder 1 so as to cover the opening. The cover 25a is provided with an exhaust port (not shown) including a slit, a mesh-like small hole, and the like.
When the suction fan 25 is driven to rotate by the built-in drive means, the airflow generated in the direction indicated by the dashed-dotted arrow in FIG. 3 is exhausted from the exhaust port to the outside of the housing 22.

A sheet feeding device 26 is provided to the right of the plate cylinder 1 and below the master storage means 3. Paper feeder 2
6 is a paper feed tray 27, a paper feed roller 28, a separation roller 29, a pair of registration rollers 30, and guide plates 31 and 32.
It is mainly composed of The paper discharge tray 27 has the printing paper P loaded thereon and is supported by the paper supply device main body 26a so as to be vertically movable. The discharge tray 27 holds the printing paper P
It is moved up and down in conjunction with the increase and decrease of. The paper feed roller 28 and the separation roller 29 are provided so as to come into contact with the uppermost printing paper P, and each roller is driven to rotate by driving means (not shown). A registration roller pair 30 is disposed downstream of the separation roller 29 in the printing paper transport direction. The registration roller pair 30 is connected to the transported printing paper P.
The plate is conveyed between the outer peripheral surface of the plate cylinder 1 and a press roller described later at a certain timing. The guide plates 31 and 32 are fixed to side plates of the stencil printing apparatus main body, and guide the feeding of the printing paper P.

In the vicinity of the lower portion of the plate cylinder 1, a press roller 33 for pressing the printing paper P conveyed from the paper feeding device 26 against the outer peripheral surface of the plate cylinder 1, and the printed paper is peeled from the outer peripheral surface of the plate cylinder 1. A peeling claw 34 is provided. The press roller 33 is fixed to a support shaft 33a swingably supported on a side plate of the stencil printing apparatus main body, and is swung by a swinging means 33b. The peeling claw 34 is also fixed to a support shaft 34a swingably supported on a side plate of the stencil printing apparatus main body, and is swung by a swinging means (not shown).

At the lower left of the plate cylinder 1, a paper discharge device 35 is provided. The paper discharging device 35 includes a driven roller 36, a driving roller 37, a belt 38, a fan 39, and a paper discharging tray 4.
It is mainly composed of 0 and the like. The driven roller 36 and the driving roller 37 are rotatably supported by a side plate of the sheet discharging device main body 35a, and a belt 38 having a plurality of apertures on its surface is stretched between the rollers. The driving roller 37 is driven to rotate by driving means (not shown), and the rotational force is transmitted to the driven roller 36 via a belt 38. Between the rollers 36 and 37 and in the discharge device body 3
A fan 39 is provided below 5a. The fan 39 generates a downward airflow in the figure by its rotation, and sucks the printed paper on the surface of the belt 38.
On the downstream side of the drive roller 37 in the printing paper transport direction, a paper output tray 40 for stacking printed paper is provided.
5a is formed integrally.

At the upper left of the plate cylinder 1, a plate discharging device 41 is provided. The plate discharging device 41 includes an upper plate discharging roller 42,
It mainly comprises a lower plate discharging roller 43, a plate discharging box 44 and the like. The upper plate discharging roller 42 includes a driving roller 45 and a driven roller 46 which are driven to rotate by driving means (not shown), and a rubber belt 4 stretched between the rollers.
7 is comprised. The lower plate discharging roller 43 is composed of a driving roller 48, a driven roller 48 connected and rotated by a gear (not shown), a driven roller 49, and a rubber belt 50 stretched between the rollers. The lower plate discharging roller 43 is movable in the left-right direction about the center axis of the driving roller 45, and is moved by moving means (not shown). By the movement of the lower plate discharging roller 43, the outer peripheral surface of the drive roller 48 can freely contact and separate from the outer peripheral surface of the plate cylinder 1. Discharge box 4
Reference numeral 4 is provided detachably with respect to the plate discharging device main body 41.

The operation will be described below. When the operator turns on the plate making start switch, the plate cylinder 1 around which the master of the previous plate is wound around its outer peripheral surface starts rotating counterclockwise by driving means (not shown). When the plate cylinder 1 reaches a predetermined plate discharging position where the rear end of the master of the previous plate wound around the outer peripheral surface thereof faces the drive roller 48, the moving means and the drive means (not shown) operate, and the drive roller 48
Is rotated and the lower plate discharging roller 43 is moved to the plate cylinder 1 side. When the outer peripheral surface of the drive roller 48 comes into contact with the master on the outer peripheral surface of the plate cylinder 1, the plate cylinder 1 continues to rotate counterclockwise, and the master that has been picked up by the drive roller 48 moves to the lower part. It is nipped between the plate discharging roller 43 and the upper plate discharging roller 42 and is separated from the outer peripheral surface of the plate cylinder 1. The exfoliated master is conveyed by the lower plate discharging roller 43 and the upper plate discharging roller 42, and is discarded inside the plate discharging box 44.

When all the masters of the previous plate are peeled from the outer peripheral surface of the plate cylinder 1, the plate cylinder 1 further rotates and stops at the plate feeding position shown in FIG. When the plate cylinder 1 stops at the plate feeding position, an opening / closing means (not shown) operates to rotate the clamper 2 clockwise, and the plate cylinder 1 enters a plate feeding standby state shown in FIG.
The plate discharging operation is completed.

In parallel with the plate discharging operation, the plate making means 4 performs a plate making operation. When the operator turns on the plate making start switch, the platen roller 14, the feed drive roller 17, and the feed drive roller 19 are respectively driven to rotate by drive means (not shown). The master 11a is perforated by the thermal head 13 while being conveyed by the platen roller 14 and the master feeding means 7, and is conveyed. According to the number of steps of a stepping motor provided in a driving means (not shown) for driving the platen roller 14, the leading end of the plate-making master 11b having been plate-formed has a guide plate 9
When it is determined that the sheet is conveyed to the master sending-out means 8 and nipped by the sending-out driving roller 19 and the sending-out driven roller 20, the rotation of the sending-out driving roller 19 is stopped.

The master 11a, which is an unmade part of the master 11b, whose leading end is sandwiched by the master delivery means 8.
Is followed by perforating plate making with the thermal head 13. The plate-making master 11b whose leading end is sandwiched by the master feeding means 8 is further conveyed by the platen roller 14 and the master feeding means 7 so that the intermediate portion thereof is directed upward from above the guide plate 9. It bends in a convex shape and is conveyed into the master stock means 6 from the opening 22d of the master stock means 6. At this time, the suction fan 25 rotates, causing the air inside the housing 22 to flow in the direction of the dashed-dotted arrow in FIG. 3, and the plate-making master 11 b is introduced into the master stock means 6 so as to go around the tip of the guide plate 23. Then, it is stored in the master stock means 6 as shown by a broken line in FIG. When the prepressed master 11b moves along the inner upper surface of the housing 22,
Since the action of the fins 22c prevents the vibration caused by the air flow, the occurrence of a jam inside the housing 22 is suppressed. Whether the plate-making master 11b has been conveyed into the master stock means 6 without jamming from above the guide plate 9 is confirmed by turning on the bending sensor 24. Further, the length of the master-made master stock of the master stock means 6 is a sufficient stock length with respect to the length of the master-made master 11b made by the plate making means 4 while the plate discharging device 41 performs the plate discharging operation. Needless to say,

When the plate discharging operation is completed and the plate cylinder 1 enters the plate feeding standby state, the plate feeding operation is started. The stopped delivery drive roller 19 starts rotating again, and the plate-making master 11b is guided to the master guide plate 21 and is conveyed to the clamper 2, and when the clamper 2 closes, the leading end of the plate making master 11b is moved to the plate cylinder 1. Locked to the outer peripheral surface. Next, the plate cylinder 1 is rotated clockwise in FIG. 1, and the master 11b having the plate is wound on the outer peripheral surface thereof. Even during this winding, the suction fan 25 is operating, and a suitable tension is continuously applied to the plate-making master 11b inside the master stock means 6, so that the occurrence of jam is suppressed.

When the winding progresses and all the master-made masters 11b stored in the master stock means 6 are conveyed to the plate cylinder 1 and the deflection sensor 24 is turned off, the rotation of the plate cylinder 1 and the delivery drive roller 19 is performed. Is paused. In the meantime, the stencil making means 4 continues to make stencils on the master 11a, and the platen roller 14 and the feed drive roller 17 are rotating, so that the stencil master 11b conveyed on the guide plate 9 becomes the master again. It is conveyed inside the stock means 6 and turns on the deflection sensor 24. When the deflection sensor 24 is turned on, the stopped plate cylinder 1 and the delivery drive roller 19 are rotated again, and the plate-making master 11 stored in the master stock unit 6 is rotated.
b is wound around the outer peripheral surface of the plate cylinder 1. As described above, with the on / off operation of the bending sensor 24, the plate cylinder 1 and the delivery drive roller 19 rotate intermittently, and the plate feeding operation of the plate-making master 11b to the outer peripheral surface of the plate cylinder 1 proceeds.

When it is determined from the number of steps of a stepping motor provided in a driving means (not shown) that drives the platen roller 14 that the plate-making master 11b for one plate has been wound, the platen roller 14, the feed drive roller 17, the feeder The rotation of the drive roller 19 and the plate cylinder 1 is stopped, and the cutting means 5 is moved to the plate-making master 11.
Cut b. Thereafter, the plate cylinder 1 is rotated again to wind the plate-making master 11b, and the plate feeding operation is completed. FIG. 2 shows the above series of operations.

After the plate feeding operation is completed, one sheet of printing paper P on the sheet feeding tray 27 is separated and fed by the sheet feeding roller 28 and the separation roller 29. After that, the printing paper P is
The sheet is guided and fed by the roller 32, and after being timed by the registration roller pair 30, the sheet is fed between the press roller 33 and the outer peripheral surface of the plate cylinder 1. The printing paper P is pressed against the outer peripheral surface of the plate cylinder 1 by the press roller 33, and the plate image of the plate master 11b is transferred onto the surface.
The printed paper on which the plate-making image has been transferred is peeled off from the outer peripheral surface of the plate cylinder 1 by the peeling claw 34, and the belt 38 located below
Is discharged on top. The printed paper on the belt 38 is sucked onto the belt 38 by the fan 39 while the drive roller 37
The plate is conveyed by the rotation of, and is discharged onto the discharge tray 40 to complete the plate attaching operation.

In the above embodiment, when the operator sets the master roll 11 in the master storage means 3 before the plate making operation, or when the thermal head 13 becomes dirty by a large number of plate making operations, the platen roller 14 is used to clean it. For example, when the platen roller 14 is detached from the printing apparatus main body and the platen roller 14 is mounted again after cleaning, the operator must manually pull out the tip of the master roll 11 and pinch the master 11a between the thermal head 13 and the platen roller 14. Must. Thereafter, in order to keep the position of the plate making image transferred to the printing sheet P relative to the printing sheet P constant, that is, to make the length from the leading end of the master 11a to the plate making start position constant, regardless of the plate making. It is necessary to disconnect the master 11a once.
At this time, the platen roller 14, the feed drive roller 17, and the feed drive roller 19 are respectively rotated, and the platen roller 14 and the feed drive roller 1 are rotated.
7, the master 11a is conveyed, and the leading end of the master 11a is sent out by the drive roller 19 and the driven follower roller 2.
At the time of being pinched between 0 and
To stop. The platen roller 14 and the feed drive roller 17 continue to rotate, and after the master 11a has been transported for an appropriate length, each roller is stopped, and the cutting means 5
Disconnects the master 11a. After the cutting of the master 11a, as shown by the two-dot chain line in FIG.
1c so that the rear end portion is located immediately below the opening 22d.
Also, as shown by the broken line in FIG. 3, after the platen roller 14 and the feed drive roller 17 are rotated again so that the new tip of the master 11a generated by the cutting is at a predetermined position on the guide plate 9. Stop each roller.
When the suction fan 25 is operated at the same time as the stop of each roller, the air flow generated inside the master stock means 6 is cut off by the cut master 11c, as shown by the dashed line in FIG.
Is moved to the upper surface of the free end of the guide plate 23. At this time, if the operation of the suction fan 25 is stopped,
The operator can open the lid 22b and easily remove the cut master 11c by hand in the direction indicated by the white arrow in FIG.

FIG. 4 is a side sectional view of the periphery of the master stock means 51 showing a modification of the above embodiment. The master stock means 51 is different from the master stock means 6 in the above embodiment in that a housing 52 is used instead of the housing 22, a mounting position of the suction fan 25 is changed, and a guide plate 53 is provided. Are different.

The housing 52 is formed of a metal plate, a resin plate, or the like, has a box shape in which an upper portion of a side plate 52e near the master storage means is opened, and is attached to a side plate of a stencil printing apparatus. This housing 52 is different from the housing 22 in that
The height is formed large. Upper plate 52 of housing 52
a is divided at a substantially central portion thereof, and is rotatably supported by a hinge or the like to form a lid 52b. The lid 52b is openable and closable from the plate cylinder side to the master storage means side. Upper plate 5
Fins 52c are provided on the inner surface side of the housing of 2a and lid 52b. An opening 52d for introducing the master 11b into the inside of the housing 52 is formed over substantially the entire width of the housing 52 at a position below the housing 52 and facing the guide plate 9. .

A guide plate 53 is mounted directly below the open portion of the side plate 52e. The guide plate 53 is a bent plate material, and the width thereof is formed over the entire width of the inside of the housing 52. The guide plate 53 is provided so as to extend substantially horizontally inside the housing 52 toward the plate cylinder side. A suction fan 2 is provided on the side of the side plate 52e on the master storage unit side.
5 is attached.

By using the master stock means 51 configured as described above, a longer mastermaking master 11b can be stored.

As still another modified example, a configuration having master stock means 54, a guide plate 56, and a blower fan 57 shown in FIG. 5 may be adopted. This master stock means 54
The above embodiment is different from the above embodiment in that a housing 55 having a plurality of openings 55a provided on one side, a lid 55b provided at an upper portion, and an opening 55d is used, and the suction fan 25 is not provided. Different. The guide plate 56 is different from the above embodiment in that the guide plate 56 has a plurality of openings 56a, and the introduction means is different from the above embodiment in that a blowing fan 57 is provided below the guide plate 56 instead of the suction fan 25. This modified example is different from the above-described embodiment in that the prepressed master 11b is introduced into the master stock means 54 from the opening 55d by the air flow sent from the blower fan 57 through the opening 56a. The same is true.

In the above embodiment and each of the modifications, the thermal head 13 and the platen roller 14
However, other means may be used as long as the master 11a is selectively heated and perforated. Other means include laser plate making and flash plate making.

[0043]

According to the first aspect of the present invention, at the time of initial setting of the master, the master is transported by the master feeding means and reaches the master sending means through the guide plate, so that the work efficiency at the time of master setting is improved. Is improved, and at the time of master storage, the introduction means assists the introduction of the plate-making master into the master stock means. The FPT can be shortened by performing the plate making operation.

According to the second aspect of the present invention, since the inside of the master stock means can be checked from the outside by opening and closing the lid, the state of the master made in the master stock means can be easily checked. It is possible to easily clean the inside of the master stock means and remove the master from inside the master stock means.

According to the third aspect of the present invention, the guide plate divides the space in the master stock means and prevents the masters having been made from overlapping each other. Is prevented, and the stock length can be increased, so that the storage capacity of the pre-mastered master can be increased.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a main part of a stencil printing apparatus employing an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an embodiment of the present invention.

FIG. 3 is a side sectional view of a portion around a master stock means for explaining one embodiment of the present invention.

FIG. 4 is a side sectional view of a portion around a master stock means for explaining a modification of the embodiment of the present invention.

FIG. 5 is a side sectional view of a periphery of a master stock means for explaining another modification of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plate cylinder 2 Clamping means (clamper) 3 Master storage means 4 Plate making means 5 Cutting means 6, 51, 54 Master stock means 7 Master sending means 8 Master sending means 9, 56 Guide plate 11a Master 11b Plate-made master 22b, 52b, 55b Lid 22d, 52d, 55d Opening 23, 53 Guide plate 25 Introducing means (suction fan) 57 Introducing means (blowing fan)

Claims (3)

(57) [Claims] 1. A porous rotatable plate cylinder having a clamp means for locking one end of a master made on an outer peripheral surface, a master storage means for storing a roll-wound master, and the master storage. Plate making means for selectively heating and perforating the master from the means in accordance with image information; cutting means for cutting the master; disposed between the plate cylinder and the cutting means; A master stock means for storing the pre-made master in the lower part thereof, disposed between the cutting means and the master stock means, and transporting the pre-made master to the master stock means. Master feeding means, provided between the plate cylinder and the master stock means,
A stencil printing device comprising: a master sending-out means for transferring the plate-making master toward the clamping means; provided between the master feeding means and the master sending-out means and below the opening. A stencil printing machine, comprising: a guide plate for guiding the pre-made master; and an introducing means for introducing the pre-made master conveyed onto the guide plate from the opening into the master stock means. apparatus. 2. The stencil printing apparatus according to claim 1, wherein said master stock means is substantially box-shaped, and has a lid which can be opened and closed at an upper portion thereof. 3. The stencil printing apparatus according to claim 1, wherein said master stock means includes a guide plate for dividing an internal space into at least two in a vertical direction.