JP3983390B2 - Paper receiving device for rotary stencil printing press - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a paper receiving device for a rotary stencil printing press.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a paper receiving device of a rotary stencil printing press generally includes a stopping guide plate and a pair of width guide plates that are erected on a paper receiving tray, and is ejected from the printing machine body between the stopping guide plate and the pair of width guide plates. The printed sheets that have been printed are stacked to some extent. The stop guide plate and the width guide plate are tilted when an operator applies a certain force or more, and the guide plate that becomes an obstacle when taking out the paper can be tilted. It would be convenient if the operation for taking out the paper could be simplified.
[0003]
By the way, the applicant of the present application has applied a paper receiving device (Japanese Patent Application No. 9-211693, unpublished) of a rotary stencil printing press that automatically sets the position of the guide plate according to the paper size, or a guide plate to the paper. A paper receiving device (Japanese Patent Application No. 9-308540, unpublished) of a rotary stencil printing machine that reciprocates in the separating direction so that the edges of the paper are neatly aligned and stacked is proposed. Since these apparatuses are provided with driving means for moving the guide plate, it is conceivable to simplify the work at the time of taking out the paper by using this.
[0004]
[Problems to be solved by the invention]
Therefore, a technical problem to be solved by the present invention is to provide a paper receiving device of a rotary stencil printing press that can simplify the operation when taking out the paper.
[0005]
[Means for solving the problems and actions / effects]
In order to solve the above technical problem, the present invention provides a paper receiving device for a rotary stencil printing press having the following configuration.
[0006]
A paper receiving device for a rotary stencil printing machine according to the present invention is a paper that is adjacent to a paper discharge portion of a printer main body that sequentially discharges printed paper and extends substantially along the paper discharge direction below the paper discharge portion. A cradle, a stop guide plate that faces the paper discharge unit above the paper cradle and extends in a direction substantially orthogonal to the paper discharge direction, and above the paper cradle and above the paper discharge unit and the stop guide A pair of width guide plates extending substantially parallel to the paper discharge direction at substantially the same interval as the width of the paper discharged from the paper discharge unit, and the stop guide plate or the pair of width guide plates. A guide plate driving means for moving at least one of the sheets stacked on the paper tray in a direction of coming into contact with and separating from the paper; and operating the guide plate driving means in synchronism with discharge of the paper from the printing machine main body; A plate or a pair of the above width guides Alignment control that executes a sheet alignment operation that reciprocates between at least one of the two positions between a “closed” position approaching the sheets stacked on the paper cradle and an “open” position away from the “closed” position. Means. The paper receiving device of the rotary stencil printing machine includes a printing end detecting unit that detects the printing end of the printing press main body, and operates the guide plate driving unit when the printing end detecting unit detects the printing end of the printing press main body. And a guide plate retract control means for executing a guide plate retracting operation for moving at least one of the stop guide plate or the pair of width guide plates to a “retreat” position outside the “closed” position.
[0007]
In the above configuration, the paper discharged from the paper discharge unit of the printing machine main body is the paper cradle (strictly speaking, the top surface of the paper stacked on the top surface of the paper cradle or the paper cradle. ) Even if the position shifts until landing (including when landing), the stop guide plate and / or the pair of width guide plates (hereinafter also simply referred to as “guide plates”) are opened by the guide plate driving means. Since the sheet is reciprocated at a predetermined timing synchronized with the sheet discharge, the discharged sheet is pushed back to the closed position in contact with the guide plate after landing or after landing. Therefore, the edges of the sheets stacked on the paper tray are neatly aligned. This sheet aligning operation may be repeatedly executed every time a sheet is discharged or once every several sheets are discharged.
[0008]
In the above configuration, when printing is completed, the guide plate automatically moves to the outside of the closed position, that is, in the direction away from the paper, and becomes the standby position. Thus, it is possible to form a sufficient gap between the paper and the guide plate so that the guide plate does not get in the way when the paper is taken out. Thus, if the guide plate automatically retracts to a position where it is easy to take out the paper after printing is completed, the paper can be taken out immediately without tilting the guide plate.
[0009]
Therefore, it is possible to simplify the operation when taking out the paper.
[0010]
By the way, if the guide plate is moved to the outside immediately after the printing is finished and the paper aligning operation is finished, the paper may fall into a gap between the guide plate and the paper alignment may be disturbed.
[0011]
Preferably, the sheet take-out control unit executes the guide plate retracting operation after a predetermined time has elapsed from when the printing end detection unit detects the printing end of the printing press body until the sheet alignment is stabilized. .
[0012]
According to the above configuration, the guide plate is moved after the paper alignment is stabilized after printing is completed, so that it is possible to prevent the paper from falling into the gap with the guide plate and disturbing the paper alignment.
[0013]
Preferably, the “evacuation” position is outside the “open” position.
[0014]
According to the above configuration, the guide plate that reciprocates between the open position and the closed position has a relatively small amplitude during the sheet aligning operation, so that the guide plate driving means can be operated at high speed, energy saving, noise reduction, etc. Can do. On the other hand, when the paper is taken out, the gap between the paper and the guide plate is relatively large, so that the paper taking out operation is facilitated.
[0015]
Preferably, it is pivotable between a closed position that extends substantially above the paper discharge section and extends in the paper discharge direction and covers the top of the paper receiving tray, and an open position that opens the top of the paper receiving tray. And an upper plate opening start detecting means for detecting the start of rotation of the upper plate from the closed position to the open position. The stop guide plate and the pair of width guide plates are supported by the upper plate and extend below the upper plate. The guide plate driving means is provided on the upper plate. The guide plate retracting control means detects the printing end of the printing press main body and the upper plate opening start detecting means detects the rotation start of the upper plate from the closed position to the open position. When this occurs, the guide plate retracting operation is executed.
[0016]
According to the above configuration, when the paper on the paper cradle is taken out after completion of printing, the upper plate is lifted and rotated to open the upper part of the paper cradle. At this time, the guide plate moves from the “closed” position to the “retreat” position in conjunction with the lifting of the upper plate, moves away from the paper and does not come into contact with the paper, so that the upper plate can be lifted smoothly. , It is possible to prevent the guide plate from being rubbed against the paper and the paper alignment being broken.
[0017]
In the above configuration, the guide plate rotates integrally with the upper plate when the paper is taken out, and the upper part of the paper feed table is opened, so that it is easy even without retracting the guide plate from the “closed” position to the outside. The paper can be taken out.
[0018]
Preferably, the “evacuation” position is the “open” position.
[0019]
According to the above configuration, the open / close range of the guide plate is the same when aligning the paper during printing and when the paper is taken out, so that the configuration of the guide plate driving means can be simplified.
[0020]
Preferably, the upper plate closing detecting means for detecting that the upper plate has returned to the closed position, and the guide plate driving after the upper plate closing detecting means detects the return of the upper plate to the closed position. And a guide plate return control means for operating the means to move at least one of the stop guide plate or the pair of width guide plates to the “closed” position.
[0021]
According to the above configuration, since the guide plate moves to the closed position after the upper plate is closed, the sheet does not contact the guide plate even if the upper plate is closed in a state where the sheets are stacked on the paper receiving tray. Therefore, when closing the upper plate, the guide plate does not disturb paper alignment.
[0022]
Each of the above-described configurations has the same operation and effect even when paper alignment is not performed, that is, when the paper alignment control unit is not provided. Accordingly, the present invention provides a paper receiving device for a rotary stencil printing press having the following configuration.
[0023]
A paper receiving device of a rotary stencil printing machine includes a paper receiving base that is adjacent to a paper discharge portion of a printing machine main body that sequentially discharges printed paper and extends substantially along the paper discharge direction below the paper discharge portion. A stop guide plate that faces the paper discharge unit above the paper tray and extends in a direction substantially orthogonal to the paper discharge direction; and a position above the paper tray and between the paper discharge unit and the stop guide plate. And at least one of a pair of width guide plates extending substantially parallel to the paper discharge direction at approximately the same interval as the width of the paper discharged from the paper discharge unit, and the stop guide plate or the pair of width guide plates. A guide plate driving means for moving the paper stacked on the paper cradle in a direction of coming into contact with and separating from the paper is provided. The paper receiving device of the rotary stencil printing press includes a print end detecting means for detecting the end of printing of the printing press main body, and extends above the paper discharge unit in a direction substantially in the paper discharge direction and above the paper receiving table. An upper plate supported by the paper receiving device main body so as to be rotatable between a closed position for covering and an open position for opening the upper side of the paper receiving table, the stop guide plate extending below the upper plate and a pair of An upper plate supporting the width guide plate, an upper plate opening start detecting means for detecting the start of rotation of the upper plate from the closed position to the opening position, and the printing end means detecting the printing end of the printing press main body. And when the upper plate opening start detecting means detects the rotation start of the upper plate from the closed position to the open position, the guide plate driving means is operated to Stack at least one of the width guide plates on the paper tray Overlaps and a guide plate retraction control means for executing the guide plate retracting operation to move closer to the sheet than the "closed" position to the "retracted" position of the outer.
[0024]
According to the above configuration, when the paper on the paper cradle is taken out after completion of printing, the upper plate is lifted and rotated to open the upper part of the paper cradle. At this time, the guide plate moves from the “closed” position to the “retreat” position in conjunction with the lifting of the upper plate, moves away from the paper and does not come into contact with the paper, so that the upper plate can be lifted smoothly. , It is possible to prevent the guide plate from being rubbed against the paper and the paper alignment being broken.
[0025]
Preferably, the upper plate closing detecting means for detecting that the upper plate has returned to the closed position, and the guide plate driving after the upper plate closing detecting means detects the return of the upper plate to the closed position. And a guide plate return control means for operating the means to move at least one of the stop guide plate or the pair of width guide plates to the “closed” position.
[0026]
According to the above configuration, since the guide plate moves to the closed position after the upper plate is closed, the sheet does not contact the guide plate even if the upper plate is closed in a state where the sheets are stacked on the paper receiving tray. Therefore, when closing the upper plate, the guide plate does not disturb paper alignment.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the paper receiving device of the rotary stencil printing press according to each embodiment of the present invention shown in FIGS. 1 to 19 will be described in detail.
[0028]
First, the first embodiment will be described with reference to FIGS.
[0029]
In the first embodiment, as shown in the front view of FIG. 1, the rotary stencil printing machine 1 places 1 printing paper between any platen 4 a and a press roller 6 from one of the paper feed bases 2 a, 2 b, 2 c. After feeding and printing one sheet at a time, the printed paper is discharged to the paper receiving device 10 by the paper discharge belt 7.
[0030]
Specifically, the paper feed tables 2a, 2b, and 2c include first and second paper feed tables 2a and 2b provided at the lower portion of the printing press main body, and a manual paper feed stand provided on one side of the printing press main body. 2c. The first and second paper feed trays 2a and 2b are configured as bottom plates of a paper cassette (not shown) that are normally stored in the printer main body and pulled out from the front side of the printer main body when paper is replenished. The manual feed tray 2c is used in a state where it is exposed to the outside from the side surface of the printing press main body as shown in the drawing as needed, and is normally stored in a folded state on one side of the printing press main body. The first and second paper feed trays 2a and 2b can place a large amount of paper (for example, 1000 sheets), whereas the manual paper feed base 2c can carry a small amount of paper (for example, several to several tens of sheets). Can be placed. The selected sheets on the sheet feed trays 2a, 2b, and 2c are separated and conveyed one by one by known means such as a sheet feeding ring, a separating plate, and a conveyance roller, and the plate cylinder 4 and the press roller at a predetermined timing. 6 is sent out.
[0031]
A stencil sheet made by the plate making unit 5a is mounted on the plate cylinder 4. The plate making unit 5a reads a document placed on a document table (not shown) provided at the upper part of the printing machine main body, enlarges or reduces it if necessary based on the image, makes a stencil sheet, and attaches it to the plate cylinder. To do. The stencil sheet mounted on the plate cylinder 4 is removed and collected by the removing unit 5b. The plate cylinder 4 is supplied with ink therein and rotates in synchronization with the paper feed speed. The press roller 6 is disposed below the plate cylinder 4 so as to be able to contact and separate. The press roller 6 is raised when the paper passes between the plate cylinder 4 and the press roller 6 and presses the paper against the plate cylinder 4 side. As a result, ink that has passed through the plate cylinder 4 and the stencil sheet adheres to the paper and is printed. The lower surface of the printed paper is supported by the paper discharge belt 7 and is discharged from the paper discharge unit 9 to the paper receiving device 10. A paper discharge sensor 8 for detecting paper discharge is provided immediately before the paper discharge unit 9.
[0032]
Next, the paper receiver 10 will be described with reference to the perspective views of FIGS. 1 and 2, the perspective view of FIG. 3, and the cross-sectional view of FIG.
[0033]
The paper receiver 10 includes a paper receiver 12 that extends from the lower side of the paper output section 9 substantially along the paper output direction 90, a stop guide plate 22 disposed on the paper receiver 12, and a pair of width guide plates 32. And a guide plate driving mechanism for moving the guide plates 22 and 32, and the printed sheets are sequentially stacked on the paper tray 12 with the sides aligned between the guide plates 22 and 32. It is like that. The paper feed tray 12 is provided with a paper presence / absence sensor 18 for detecting whether or not there is paper on the paper feed tray 12.
[0034]
Specifically, the stop guide plate 22 faces the paper discharge unit 9 of the printing machine 1, extends in a direction orthogonal to the paper discharge direction 90 of the printed paper, and has been printed from the paper discharge unit 9 into the air. The front edge of the paper comes into contact. The stop guide plate 22 is movably supported in the paper discharge direction 90 by a stop guide plate support member 26 that slides along the parallel guide rail 20 fixed in the paper discharge direction 90 inside the paper tray 12. Yes.
[0035]
The pair of width guide plates 32 extend in parallel along the paper discharge direction 90 between the paper discharge unit 9 and the stop guide plate 22 and come into contact with the left and right side edges of the printed paper. ing. As shown in FIG. 3, the pair of width guide plates 32 support a stop guide plate that slides along parallel guide rails 30 fixed in a direction perpendicular to the paper discharge direction 90 inside the paper tray 12. The members 36 are respectively supported so as to be movable in a direction perpendicular to the paper discharge direction 90. As shown in FIG. 2, a plurality of comb-shaped protrusions 34 are provided at the lower ends of the pair of width guide plates 32, and are perpendicular to the conveyance direction 90 provided on the upper surface 13 of the paper tray 12. A plurality of rows of grooves 14 extending in the direction are slidably fitted. This prevents the paper on the paper receiving tray 12 from entering the gap between the upper surface of the paper receiving tray 12 and the lower end of the width guide plate 32 and shifting the position of the paper.
[0036]
As shown in FIGS. 3 and 4, the light shielding plates 28 and 38 are respectively fixed to the guide plate support members 26 and 36, and the light receiving sensors 29 and 39 are disposed at appropriate positions on the paper tray 12. The light shielding plates 28 and 38 shield the light shielding sensors 29 and 39 when the guide plates 22 and 32 are disposed at the home positions where they are moved most outward.
[0037]
Each guide plate 22, 32 is driven by a guide plate drive mechanism. The guide plate driving mechanism is provided with two sets in total, one set for the stop guide plate 22 and one set for the pair of width guide plates 32.
[0038]
As shown in FIGS. 3 and 4, the guide plate drive mechanism for the stop guide plate 22 is supported by a pair of pulleys 44 along the parallel guide rail 20 and rotates the drive belt 40 and one pulley 44. The stepping motor 42 is provided. The stepping motor 42 rotates when a drive pulse signal is given from a drive circuit (not shown). One pulley 44 rotates by the rotation of the stepping motor 42, and the drive belt 40 circulates between the pair of pulleys 44 in both directions. A lower portion 27 of the stop guide plate support member 26 holds the drive belt 40 and moves together with the drive belt 40. Therefore, the stop guide plate 22 is driven in the paper discharge direction 90 along the parallel guide rail 20.
[0039]
The guide plate drive mechanism for the pair of width guide plates 32 is also configured in substantially the same manner, and as shown in FIG. 3, a drive belt 40 supported by a pair of pulleys 44 along the parallel guide rail 30 is provided. It is circulated by the rotation of the stepping motor 42. The lower part of each width guide plate support member 36 sandwiches both sides of the drive belt 40, and moves with the drive belt 40 by a distance equal to the direction of contact with and away from each other. Accordingly, the pair of width guide plates 32 are driven along the parallel guide rails 30 by a distance equal to the direction in which they are in contact with and away from each other.
[0040]
Further, each guide plate driving mechanism is provided with a pulse encoder. That is, as shown in FIGS. 3 and 4, the pulse plate 46 is coupled to one pulley 44, and the photo interrupter 48 is disposed so as to face the pulse plate 46. The pulse plate 46 has pulse marks arranged radially. The photo interrupter 48 detects the passage of the pulse mark on the pulse plate 46 and generates a pulse signal. The pulse plate 46 has a rough pulse mark so that the photo interrupter 48 outputs a lower frequency pulse (for example, one pulse) corresponding to the drive pulse (for example, two pulses) of the stepping motor 42.
[0041]
This pulse encoder is used to monitor the operation of the stepping motor 42 of the guide plate drive mechanism. That is, when the stepping motor 42 is operating normally, the pulse encoder outputs a coarse pulse signal corresponding to the drive pulse signal applied to the stepping motor 42. For example, when the stepping motor 42 is overrun, the stepping motor 42 Even if it stops supplying the drive pulse signal to the motor 42 to stop the rotation of the stepping motor 42, the pulse encoder continues to output the pulse signal. For example, when the stepping motor 42 steps out, the stepping motor 42 does not rotate even if a drive pulse signal is given to the stepping motor 42, and the pulse encoder does not output a pulse signal. Thus, the operation of the stepping motor 42 can be monitored by comparing the drive pulse signal applied to the stepping motor 42 with the pulse signal from the pulse encoder. Although the load applied to the stepping motor 42 varies greatly depending on the weight of the paper and how it is stacked, applying a driving force in accordance with a heavy load increases the size of the motor, increases the cost, and increases the sound. If the driving force is small, the risk of step-out increases, but a small motor can be used by monitoring the pulses with the configuration described above.
[0042]
As shown in FIG. 3, the paper receiving apparatus 10 is further provided with an operation panel 50 so that the positions of the stop guide plate 22 and the pair of width guide plates 32 can be arbitrarily set. That is, the stop guide plate 22 can be moved to both sides of the conveyance direction 90 by the operation of the switches 52 and 54, and the pair of width guide plates 32 can be moved to contact and separate from each other by the switches 56 and 58.
[0043]
Next, the sheet aligning operation of the guide plates 22 and 32 during printing will be described with reference to the timing chart of FIG. FIG. 5A shows the position of the pair of width guide plates 32, and FIG. 5B shows the position of the stop guide plate 22. Here, the “closed” position is a position in the vicinity where the guide plates 22 and 32 approach or come into contact with the paper at a predetermined position on the paper tray 12, and the “open” position is the position where the guide plates 22 and 32 are the paper tray. 12 shows a position away from the paper at a predetermined position on the outer side. An arrow A indicates when the leading edge of the paper discharged from the printing press 1 contacts the stop guide plate 22.
[0044]
The pair of width guide plates 32 are in the open position as indicated by W1 when the leading edge of the paper discharged from the printing press 1 comes into contact with the stop guide plate 22, and the paper falls and lands on the paper receiving tray 12. Until then, it is in the open position. Then, after the paper has landed on the paper receiving tray 12, as indicated by W2->W3-> W4, the paper moves from the open position to the closed position and returns to the open position again. When the width guide plate 32 moves from the open position to the closed position, when the side edge of the paper landed on the paper receiving tray 12 hits the width guide plate 32, the paper is pushed in the width direction to a predetermined position.
[0045]
The stop guide plate 22 is in the open position as indicated by L1 when the leading edge of the paper discharged from the printing press 1 contacts the stop guide plate 22. Since the stop guide plate 22 is separated from the paper discharge unit 9 of the printing machine 1, the paper that has come into contact with the stop guide plate 22 bounces back to the paper discharge unit 9 of the printing machine 1, and causes trouble in the vicinity of the discharge unit 9. Is prevented. The stop guide plate 22 remains in the open position until the paper drops and lands on the paper tray 12. Then, after the paper has landed on the paper receiving tray 12, as indicated by L2->L3-> L4, the paper moves from the open position to the closed position and returns to the open position again. When the stop guide plate 22 moves from the open position to the closed position, the paper is pushed to a predetermined position when the front end of the paper hits the stop guide plate 22.
[0046]
The series of operations described above are executed in accordance with the paper discharge cycle. Since the guide plates 22 and 32 are displaced from the predetermined position and land on the paper receiving tray 12 and push the paper to the predetermined position, the paper on the paper receiving tray 12 can be neatly aligned.
[0047]
As illustrated in the timing chart of FIG. 6 illustrated in FIG. 6, the guide plates 22 and 32 can perform the sheet aligning operation in other modes.
[0048]
That is, the pair of width guide plates 32 moves from the open position to the closed position as indicated by S1 before and after the leading edge of the paper comes into contact with the stop guide plate 22, and the paper is falling or the paper is placed on the paper cradle. The closed position is reached at or shortly after landing. As a result, the width direction positions of the sheets are aligned. And it returns to an open position as shown by S2->S3-> S4.
[0049]
The stop guide plate 22 moves from the closed position to the open position as indicated by T1 before and after the leading edge of the sheet comes into contact with the stop guide plate 22, and the leading edge of the sheet is stopped while being retracted in the paper discharge direction 90. It abuts on the guide plate 22. As a result, the sound when the paper comes into contact with the stop guide plate 22 is reduced, and the paper is prevented from coming back into contact with the stop guide plate 22 and rebounding to the paper discharge unit 9 of the printing press 1. Then, as indicated by T2->T3-> T4, the position returns to the closed position, and the position in the length direction of the paper is aligned with a predetermined position.
[0050]
By executing the above series of operations in accordance with the paper discharge cycle, the paper can be neatly aligned on the paper receiving tray 12.
[0051]
Further, for example, the height of the paper loaded on the paper receiving tray 12 may be detected, the paper landing timing may be calculated, and the guide plates 22 and 32 may be driven more accurately. Further, instead of driving the guide plates 22 and 32 every time a sheet is discharged from the printing press 1, the guide plates 22 and 32 may be driven intermittently every time several sheets are discharged.
[0052]
Next, the configuration will be further described with reference to the circuit block diagram of FIG.
[0053]
The printing machine 1 and the paper receiving apparatus 10 are controlled by a common CPU 80. The CPU 80 is connected to a ROM 84 that stores a control program, a RAM 86 that temporarily stores data, and the printing machine 1 and the paper receiver 10. The devices of the printing press 1 connected to the CPU 80 are a paper feed motor 2s for raising and lowering the paper feed tables 2a and 2b, and a feed system that drives a conveyance system for conveying paper from the paper feed tables 2a, 2b and 2c. A paper transport motor 3s, a main motor 4s for driving the plate cylinder 4 and the like, a paper feed clutch 3t for selectively driving the paper feed rings of the paper feed bases 2a, 2b and 2c, and a paper discharge sensor 8. . The equipment of the paper receiver 10 connected to the CPU 80 includes two sets of stepping motors 42 and photo interrupters 48 of the guide plate driving mechanism, light shielding sensors 29 and 39 for detecting the home positions of the guide plates 22 and 32, and paper. This is a paper presence sensor 18 of the cradle 12. Further, the CPU 80 is connected to the CPU 82 of the printing press main body. Connected to the CPU 82 of the printer main body are an operation panel 1 s of the printer 1 and a document sensor 1 t for detecting the size of the paper placed on the document table of the printer 1.
[0054]
Next, the operation of the guide plates 22 and 32 will be further described with reference to the timing chart of FIG. 8A shows the printing operation of the printing press 1, FIG. 8B shows the operation of the pair of width guide plates 32, and FIG. 8C shows the operation of the stop guide plate 22, respectively.
[0055]
The guide plates 22 and 32 of the paper receiving apparatus 10 are in predetermined positions (closed positions in the drawing) as indicated by Wa and La before the printing machine 1 starts printing. When the printing machine starts printing as indicated by P1, the guide plates 22 and 32 are arranged to reciprocate between the open position and the closed position as indicated by Wb and Lb during printing indicated by P2. Perform the action.
[0056]
When the printing machine finishes printing as indicated by P3, the guide plates 22 and 32 stop at predetermined positions (closed positions in the figure) as indicated by Wc and Lc. After a predetermined time has elapsed, the guide plates 22 and 32 start to move outward as indicated by Wd and Ld, and stop at the retracted position. The sheet alignment stabilization time t is provided when the guide plates 22 and 32 are moved to the outside immediately after the end of printing, so that the last printed sheet is placed between the guide plates 22 and 32 and the stacked sheets. This is because it may fall into the gap and disturb the paper alignment.
[0057]
When the guide plates 22 and 32 are at the retracted position as indicated by We and Le, the paper can be taken out from the paper receiving tray 12. At this time, the width guide plate 32 and the stop guide 22 plate are widened and a gap is formed between the width guide plate 32 and the stop guide 22 plate, so that the paper can be easily taken out. Here, the retracted position of the guide plates 22 and 32 is at least a position outside the closed position, and the guide width may be wider than the paper size and a gap may be formed between the paper, but it is easier to take out the paper. In order to do this, it is preferable that the guide plates 22 and 32 extend beyond the amplitude during the sheet aligning operation, that is, beyond the open position and further outward.
[0058]
When restarting printing, for example, when printing is restarted by turning on the start switch, first, the guide plates 22 and 32 are moved inward from the sheet alignment position as indicated by Wf and Lf, and the width guide plate After the stop guide plate reaches a predetermined position (closed position in the figure) as indicated by Wg and Lg, the printing machine resumes printing as indicated by P5. During the printing indicated by P6, the guide plates 22 and 32 similarly perform the sheet aligning operation that reciprocates between the open position and the closed position as indicated by Wh and Lh.
[0059]
Next, the operation of the paper receiving apparatus 10 will be described with reference to the flowcharts of FIGS. 9 and 10.
[0060]
As shown in FIG. 9, in step # 10, the process waits until the print start switch of the printing press 1 is turned on. When the print start switch of the printing press is turned on, in step # 12, the guide plates 22 and 32 move to a predetermined closed position corresponding to the paper size, and in step # 14, the printing press 1 starts printing. In steps # 16 and # 18, the guide plates 22 and 32 perform a sheet aligning operation that reciprocates between the open position and the closed position until the number of printed sheets reaches a predetermined number.
[0061]
As shown in the detailed flowchart of FIG. 10, in step # 16, when the paper discharge sensor 9 detects paper discharge in step # 30, in step # 32, for example, the paper size, printing speed, The drive timing of the guide plates 22 and 32 is adjusted according to the number of printed sheets, the height of the sheets stacked on the paper tray, and the like. When the predetermined timing is reached, in step # 34, a sheet aligning operation is performed to reciprocate the guide plates 22 and 32 between the open position and the closed position.
[0062]
When the number of printed sheets reaches the predetermined number, printing is stopped in step # 20, and in step # 22, the passage of a predetermined time during which the paper alignment is stabilized is waited. In step # 24, the guide plates 22 and 32 take out the paper. Move to position.
[0063]
As described above, according to the above-described embodiment, when printing is finished, the guide plate automatically moves to a paper take-out position where it is easy to take out the paper, so that the paper can be loaded immediately without any special operation such as tilting the guide plate. It can be taken out and is convenient. Therefore, it is possible to simplify the operation when taking out the paper.
[0064]
Next, a second embodiment will be described with reference to FIGS. 11 and 12. Below, it demonstrates centering on difference with 1st Embodiment.
[0065]
In the rotary stencil printing machine 101 according to the second embodiment, the paper feed table 102 is moved up and down by an elevator apparatus 102 a so that a large amount of sheets can be placed on the paper feed table 102. The paper placed on the paper feed tray 102 is sent out one by one from the top by the paper feed ring 103, passes through between the plate cylinder 104 and the press roller 106, and is printed from the paper discharge unit 109 to the paper receiving device 110. To be discharged. A paper discharge sensor 108 is provided immediately before the paper discharge unit 109. The elevator apparatus 102 a is configured to raise the sheet feed table 102 as the number of sheets decreases, so that the top sheet always contacts the sheet feed ring 103. Accordingly, the printing machine 101 can continuously print a large amount of sheets.
[0066]
The paper receiver 110 includes a paper receiver cover 114 that covers printed paper discharged from the printing machine 101 from above, a paper receiver 112 disposed below the paper receiver cover 114, and an elevator that raises and lowers the paper receiver 112. Device 140.
[0067]
The paper receiving cover 114 includes an upper plate 116 that extends in the horizontal direction, a stop guide plate 122 that extends downward from the lower surface of the upper plate 116, and a pair of width guide plates 132. The stop guide plate 122 extends in a direction perpendicular to the paper discharge direction 90 so that the front end of the discharged paper comes into contact therewith. The pair of width guide plates 132 extend on both sides along the paper discharge direction 90 between the paper discharge unit 109 and the stop guide 122 of the printing press 101 so as to approach or contact both sides of the discharged paper. It has become. The paper receiving cover 114 is provided with a guide plate driving mechanism (not shown) configured in substantially the same manner as in the first embodiment. The stop guide plate 122 is discharged in the paper discharge direction 90, and the pair of width guide plates 132 are discharged. They can be moved in directions perpendicular to the direction 90 and close to and away from each other. Protrusions 124, 134 are provided at the lower ends of the guide plates 122, 132.
[0068]
The paper receiving tray 112 is supported by the main body of the paper receiving apparatus 110 so as to be movable up and down, and can be moved up and down by the elevator apparatus 140. A groove (not shown) is provided on the upper surface of the paper cradle 112. When the paper cradle 112 is in the upper limit position, the protrusions 124 and 134 of the guide plates 122 and 132 enter the groove and mesh with each other. The printed sheets are stacked on the paper receiving tray 112 without coming out between the paper receiving cover 114 and the paper receiving tray 112.
[0069]
The paper cradle 112 is set to the upper limit position at the start of printing, and when the paper is stacked up to a certain height on the paper cradle 112, the upper part of the paper is lowered in a range that does not fall below the lower ends of the guide plates 122 and 132. The upper part of the paper always meshes with the guide plates 122 and 132, and the fall distance of the paper discharged from the printing machine 101 is kept substantially constant. Therefore, even when a large amount of printing is performed, printed sheets can be aligned and stacked on the paper tray 112 without interrupting printing.
[0070]
The paper receiving cover 114 is rotatably fixed to the main body of the paper receiving device 110 and can be lifted up as shown by a chain line in FIG. When the paper receiving cover 114 is lifted, the top of the paper receiving tray 112 is opened, and the paper placed on the paper receiving tray 112 can be easily taken out. The rotation position of the paper receiving cover 114 is detected by the micro switch 180.
[0071]
The elevator apparatus 140 that raises and lowers the paper tray 112 includes a motor 142, a chain 144, sprockets 146 and 147, and a tension spring 148. One end of the chain 144 is fixed to the paper receiving tray 112, folded back by sprockets 146 and 147 arranged vertically, and the other end is pulled by a tension spring 148. Specifically, the chain 144 extends upward from one end fixed to the paper tray 112, meshes with a guide sprocket 146 provided above the upper limit position of the paper tray 112, and is folded downward to be provided at the lower portion. The other end is pulled upward by a tension spring 148 that meshes with the drive sprocket 147 and is folded back upward again and fixed to the main body of the paper receiving apparatus 110. The drive sprocket 147 is rotated by a motor 142 via a reduction gear, and the chain 144 moves upward or downward with the rotation of the drive sprocket 147 so that the paper tray 112 moves up and down. Note that an elevator apparatus 102a that lifts and lowers the paper feed tray 102 of the printing press 101 is basically configured in the same manner.
[0072]
The elevator apparatus 140 further includes upper and lower limit switches 150 and 152 for detecting the upper and lower limit positions of the paper tray 112, a level sensor 154 for detecting the height of the sheets stacked on the paper tray 112, and a manual lowering. The switch 156 is provided, and the lifting / lowering operation of the paper tray 112 is controlled based on these signals. The level sensor 154 is positioned below the paper discharge unit 109 of the printing machine 101 and above the lower ends of the stop guide plate 122 and the width guide plate 132, and at a position facing the sheet stacked on the paper tray 112. Each has a light projecting unit and a light receiving unit, and can detect whether or not the sheets are stacked above the level sensor 154.
[0073]
Next, the operation of the paper receiving device 110 will be described. The paper receiving device 110 operates in substantially the same manner as in the first embodiment, but the operation at the end of printing is different from that in the first embodiment. Hereinafter, the difference will be mainly described with reference to the timing chart of FIG.
[0074]
The guide plates 112 and 132 of the paper receiving apparatus 110 are in predetermined positions (closed positions in the drawing) as indicated by Wa and La before starting printing, and are indicated by Wb and Lb when printing is started. As described above, the second embodiment is the same as the first embodiment in that the sheet aligning operation that reciprocates between the open position and the closed position is executed. At this time, the paper receiving cover 114 is in a closed state as indicated by C1.
[0075]
However, when the printing press 101 finishes printing as indicated by P3, the guide plates 122 and 132 stop at predetermined positions (closed positions in the figure) as indicated by Wc and Lc. When the micro switch 180 detects that the paper receiving cover 114 of the paper receiving device 110 is lifted as indicated by C2, the guide plates 122 and 132 immediately move outward as indicated by Wd and L. And move to the retracted position. In other words, the guide plates 122 and 132 remain stopped at the predetermined positions until the paper receiving cover 114 of the paper receiving device 110 is lifted even after printing is completed. In the state where the paper receiving cover 114 is lifted as indicated by C3, the guide plates 122 and 132 remain at the retracted position as indicated by We and Le and do not move.
[0076]
That is, when printing is finished and the paper receiving cover 114 of the paper receiving device 110 is lifted, the guide plates 122 and 132 are separated from the paper, and the guide plates 122 and 132 do not contact the paper. Therefore, the paper receiving cover 114 can be lifted smoothly, and it can be prevented that the guide plates 122 and 132 are rubbed against the paper and the paper is not aligned. On the other hand, even if the paper receiving cover 114 is lowered with the paper stacked on the paper receiving tray 112, the guide plates 122 and 132 approach the paper from the outside, so that the paper alignment is not disturbed.
[0077]
When resuming printing, it is necessary to lower the paper receiving cover 114 of the paper receiving device 110 as indicated by C4 and to close it as indicated by C5. When the paper receiving cover 114 is lowered, the micro switch 180 immediately detects and the guide plates 122 and 132 that have been retracted start to move inward as indicated by Wf and Lf, and are moved to a predetermined position (open in the figure). To position). After the guide plates 122 and 132 move to the predetermined positions, printing is started as indicated by P5. During the printing indicated by P6, the guide plates 122 and 132 are aligned as indicated by Wh and Lh. Perform the action.
[0078]
Also in the second embodiment, since the guide plates 122 and 132 automatically move so as not to disturb the paper alignment when taking out the paper, the paper is taken out immediately without any special operation such as tilting the guide plates 122 and 132. Can be convenient. Therefore, it is possible to simplify the operation when taking out the paper.
[0079]
Next, a rotary stencil printing machine according to a third embodiment will be described with reference to FIGS. The rotary stencil printing machine according to the third embodiment is generally configured in the same manner as in the second embodiment.
[0080]
The rotary stencil printing machine of the third embodiment is different from the second embodiment in the configuration and operation of the drive mechanism of the guide plates 122 and 132. FIG. 13 is a plan view of the paper receiving cover with the exterior cover removed. 14 to 17 are cross-sectional views taken along lines AA, BB, CC, and DD in FIG.
[0081]
As shown in FIG. 13, the upper plate 116 has one central slit 332s, 332a and four support slits 332t, 332b for each of the stop guide plate and the pair of width guide plates in addition to the observation window 332p. One drive slit 332u, 332c is formed. Each of the slits 332s, 332t, 332u; 332a, 332b, 332c is elongated in the moving direction of the guide plate, that is, in the paper discharge direction 90 or the paper width direction.
[0082]
As shown in FIG. 13, slide plates 337A and 339A that slide on the guide rails 334 and 335 pass through the central slits 332s and 332a of the upper plate 116, respectively. As shown in FIG. 15, an L-shaped stop plate 338b fixed to the upper end of the width guide plate 132 is fixed to the slide plate 339A with an auxiliary screw 338c and a nut 338d with the guide rail 335 interposed therebetween. A slit 335a is formed in the guide rail 335, and the slide plate 339A can move in the paper width direction with respect to the guide rail 335 together with the width guide plate. Further, a guide set screw 339 is inserted through the slide plate 339A. The guide set screw 339 is a step screw, and the tip of the guide set screw 339 passes through the slit 335a of the guide rail 335 and is screwed into the set plate 338b. When the guide set screw 339 is tightened, the slide plate 339A is moved with respect to the guide rail 335. Therefore, the width guide plate 132 is fixed to the guide rail 335. The closed position of the width guide plate 132 can be adjusted by using a set screw 339. With the same configuration, the stop guide plate is fixed to the guide rail 334 with a guide set screw 337. By using a set screw 337, the closed position of the set guide plate can be adjusted.
[0083]
As shown in FIG. 15, spacers 335s having flanges are inserted into the four support slits 332b of the upper plate 116, respectively. The spacer 335s is fixed to the guide rail 335 with a screw 335t, and a portion near the support slit 332b of the upper plate 116 is sandwiched between the flange of the spacer 335s and the guide rail 335, whereby the guide rail 335 is fixed to the support slit 332b. It is supported so that it can swing along. With the same configuration, the guide rail 334 is swingably supported along the support slit 332t.
[0084]
As shown in FIG. 17, the spacer 240 fixed to the guide rail 335 protrudes from the drive slit 332 c of the upper plate 116, and one end of the link arm 216 uses an E ring 242 at the protruding end of the spacer 240. The guide rail 335 is driven by the stepping motor 200 via the link arms 210 to 216 and reciprocates in the paper width direction. With the same configuration, the guide rail 334 is driven by the stepping motor 200 via the link arms 210 to 214 and reciprocates in the paper discharge direction 90.
[0085]
Each end of the link arms 200 to 216 is rotatably coupled. For example, as shown in FIG. 16, the other link arm 214 is rotatably coupled by a spacer 230 fixed to one link arm 212 with a screw 232. When the stepping motor 200 rotates once, the guide rails 334 and 335 reciprocate once in the paper discharge direction 90 or the paper width direction by the link mechanism by the link arms 210 to 216. As a result, the guide plate reciprocates once between a closed position approaching the sheet and an open position separated from the sheet by a predetermined distance. As shown in FIG. 13, a half-moon shaped light shielding plate 204 is fixed to the output shaft of the stepping motor 200, and the edge of the light shielding plate 204 is detected by the photo interrupter 202. The light shielding plate 204 and the photo interrupter 202 are configured to detect an edge corresponding to the closed position or the open position of the guide plate. As will be described in detail later, the stepping motor 200 rotates in conjunction with the printing operation and the opening and closing of the upper plate 116 to control the position of the guide plate. When the upper plate 116 is closed and not printing, the guide plate is controlled to stop at the innermost position, and the position of the guide plate (closed position) is set on the sheet by using the set screws 337 and 339. It can be adjusted together.
[0086]
Next, the operation of the paper receiving apparatus will be described with reference to the timing charts of FIGS.
[0087]
As shown in FIG. 18, the guide plate of the paper receiving device is in a predetermined position (closed position in the figure) as indicated by Wa and La before starting printing, and when printing is started, Wb and Lb are started. As shown in FIG. 4, the sheet aligning operation that reciprocates between the open position and the closed position is executed. At this time, the paper receiving cover is in a closed state as indicated by C1.
[0088]
Specifically, the sheet alignment is performed as shown in the timing chart of FIG. 19 shown in the same manner as FIG.
[0089]
That is, as shown in FIG. 19B, the stop guide plate moves from the closed position to the open position as indicated by T1 before and after the leading edge of the sheet abuts against the stop guide plate (indicated by arrow A). The leading edge of the paper comes into contact with the stop guide plate that is moving backward in the paper discharge direction 90. As a result, the sound when the paper comes into contact with the stop guide plate is reduced, and the paper is prevented from coming back into contact with the stop guide plate and rebounding to the paper discharge unit 108 of the printer main body. Then, as indicated by T2->T3-> T4, the position returns to the closed position, and the position in the length direction of the paper is aligned with a predetermined position.
[0090]
As shown in FIG. 19A, the pair of width guide plates moves in synchronization with the stop guide plate. That is, before and after the leading edge of the paper comes into contact with the stop guide plate, the paper moves from the closed position to the open position as indicated by K1, and closes while the paper is falling or when the paper is landed on the paper receiving tray. Reach position. As a result, the width direction positions of the sheets are aligned. And it returns to a closed position as shown by K2->K3-> K4.
[0091]
By executing the above series of operations in accordance with the paper discharge cycle, the paper can be neatly aligned on the paper receiving tray.
[0092]
When the printer finishes printing as indicated by P3 in FIG. 18, the guide plate stops at a predetermined position (closed position in the figure) as indicated by Wc and Lc. Even after printing is completed, the guide plate remains stopped at a predetermined position until the paper receiving cover of the paper receiving device is lifted as indicated by C2.
[0093]
When the micro switch 180 detects that the paper receiving cover of the paper receiving device has been lifted, the guide plate immediately starts to move outward as shown by Wd and Ld and moves to the open position. When the paper receiving cover of the paper receiving device is lifted, the guide plate moves away from the paper and the guide plate does not come into contact with the paper, so that the paper receiving cover can be lifted smoothly and the guide plate is rubbed against the paper. Can be prevented from collapsing.
[0094]
When the paper receiving cover is lifted and opened as indicated by C3, the guide plate remains in the open position as indicated by We and Le and does not move.
[0095]
When resuming printing, it is necessary to lower the paper receiving cover of the paper receiving device as indicated by C4 and to close it as indicated by C5. When the micro switch detects that the paper receiving cover has been lowered, the retracted guide plate starts to move inward as indicated by Wf and Lf and moves to a predetermined position (closed position). Delay times t1 and t2 until the guide plate reaches the closed position are, for example, about 2 to 3 seconds.
[0096]
Since the guide plate moves after the paper receiving cover is completely lowered and stabilized in this way, the guide plate does not contact the paper even if the paper receiving cover is lowered with the paper stacked on the paper receiving tray. So paper alignment is not disturbed. Since the opening / closing range of the guide plate may be the same as when the paper receiving cover is opened / closed, the configuration of the guide plate driving mechanism can be simplified.
[0097]
When printing is started as indicated by P5 after the guide plate has moved to a predetermined position, during the printing indicated by P6, the guide plate performs a sheet aligning operation as indicated by Wh and Lh.
[0098]
Also in the third embodiment, since the guide plate automatically moves so as not to disturb the paper alignment when taking out the paper, the paper can be taken out immediately without any special operation such as tilting the guide plate, which is convenient. . Therefore, it is possible to simplify the operation when taking out the paper.
[0099]
In addition, this invention is not limited to the said embodiment, It can implement in another various aspect. For example, the printing press and the paper receiving device may be controlled independently by separate CPUs, and necessary data may be exchanged.
[Brief description of the drawings]
FIG. 1 is a front view of a paper receiving apparatus and a printing machine according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the paper receiving apparatus of FIG.
FIG. 3 is a perspective view of the paper receiving device of FIG. 1;
4 is a cross-sectional view of the paper receiving device of FIG. 1. FIG.
FIG. 5 is a timing chart of the operation of the guide plate of the paper receiving apparatus of FIG.
FIG. 6 is a timing chart of the operation of the guide plate according to another embodiment.
7 is a circuit block diagram of the paper receiving apparatus and the printing machine of FIG. 1;
8 is an overall flowchart of the operation of the paper receiving apparatus of FIG.
FIG. 9 is a detailed flowchart of step # 16 in FIG.
10 is a timing chart of the paper receiving apparatus in FIG. 1. FIG.
FIG. 11 is a front view of a paper receiving device and a printing machine according to a second embodiment of the present invention.
12 is a timing chart of the paper receiving apparatus in FIG. 11. FIG.
FIG. 13 is a plan view of a paper receiving cover of the paper receiving device according to the third embodiment.
14 is a cross-sectional view taken along line AA in FIG.
15 is a cross-sectional view taken along line BB in FIG.
16 is a cross-sectional view taken along line CC in FIG.
17 is a cross-sectional view taken along the line DD in FIG.
18 is a timing chart of the paper receiver of FIG.
FIG. 19 is a timing chart of the operation of the guide plate.
[Explanation of symbols]
1 Rotary stencil printing press
1s operation panel
1t Document sensor
2a, 2b, 2c
2s paper feed motor
3s paper feed motor
3t paper feed clutch
4 Plate cylinder
4s main motor
5a Plate making part
5b Removal part
6 Press roller
7 Output belt
8 Paper discharge sensor
9 Output section
10 Paper receiving device
12 Paper cradle
13 Top surface
14 groove
18 Paper presence sensor
20 Parallel guide rail
22 Stop guide plate
26 Stop guide plate support member
27 Lower part
28 Shading plate
29 Shading sensor
30 Parallel guide rail
32 width guide plate
34 Protrusion
36 width guide plate support member
38 Shading plate
39 Shading sensor
40 Drive belt (guide plate drive means)
42 Stepping motor (guide plate driving means)
44 Pulley (guide plate drive means)
46 Pulse plate
48 Photointerrupter
50 Operation panel
52, 54, 56, 58 switches
80, 82 CPU
84 ROM
86 RAM
90 Output direction
101 Rotary stencil printing machine
102 Paper feeder
102a Elevator device
103 Feeding ring
104 Plate cylinder
106 Press roller
108 Paper discharge sensor
109 Paper discharge unit
110 Paper receiving device
112 Paper cradle
114 Paper receiving cover
116 Upper plate
122 Stop guide plate
124 protrusion
132 Width guide plate
134 protrusion
140 Elevator equipment
142 motor
144 chain
146, 147 Sprocket
148 Tension spring
150 Upper limit switch
152 Lower limit switch
154 Level sensor
156 Down switch
180 micro switch (upper plate opening start detection means, upper plate closing detection means)
200 Stepping motor (guide plate driving means)
202 Photointerrupter
204 Shading plate
210-216 Link arm (guide plate driving means)
230 Spacer
232 screw
240 Spacer
242 E-ring
332a Central slit
332b Support slit
332c Drive slit
332p peep window
332s Central slit
332t support slit
332u Drive slit
334, 335 Guide rail
335a slit
335s spacer
335t nut
337 Guide set screw
337A slide plate
338b Stop plate
338c Auxiliary screw
338d nut
339 Guide set screw
339A Slide plate

Claims (5)

A paper cradle that is adjacent to the paper discharge section (1 09) of the printer main body for sequentially discharging printed paper and extends substantially along the paper discharge direction (90) below the paper discharge section (1 09). ( 112) and a stop guide plate ( 122) that faces the paper discharge unit (109) and extends in a direction substantially perpendicular to the paper discharge direction (90) above the paper tray ( 112). The width of the paper discharged from the paper discharge section (1 09) is roughly above the paper tray (1 12) and between the paper discharge section (1 09) and the stop guide plate ( 122). At least one of the pair of width guide plates ( 132) extending substantially parallel to the paper discharge direction (90) at equal intervals and the stop guide plates ( 122) or the pair of width guide plates ( 132) Moved toward and away from the paper stacked on the paper cradle ( 112) Guide plate driving means (200, 210 to 216) to be operated, and the guide plate driving means to be operated in synchronization with the discharge of the sheet from the printing machine main body, so that the stop guide plate ( 122) or the pair of width guide plates at least one of (1 32), perform a "closed" position close to the paper stacked on the paper receiving tray on the sheet aligning operation to shuttle between the "open" position away outward from the "closed" position A paper receiving device ( 110) of a rotary stencil printing machine ( 101) provided with a paper alignment control means
Printing end detection means for detecting the printing end of the printing press main body,
When the printing end means detects the printing end of the printing press main body, the guide plate driving means is operated to move at least one of the stop guide plate ( 122) or the pair of width guide plates ( 132). A guide plate retreat control means for performing a guide plate retreat operation for moving to a “retreat” position outside the “closed” position ;
A closed position that extends substantially along the paper discharge direction (90) above the paper discharge section (109) and covers the top of the paper cradle (112) and the top of the paper cradle (112) are opened. An upper plate (116) supported by the paper receiving device main body so as to be rotatable between an open position and
An upper plate opening start detecting means (180) for detecting the start of rotation of the upper plate (116) from the closed position to the opened position ;
The stop guide plate (122) and the pair of width guide plates (132) are supported by the upper plate (116) and extend below the upper plate (116), and the guide plate driving means (200, 210). 216) are provided on the upper plate (116), and the guide plate retreat control means is configured such that the printing end means detects the printing end of the printing machine body and the upper plate opening start detection means (180) The paper receiving device for a rotary stencil printing machine, wherein the guide plate retracting operation is executed when the start of rotation of the upper plate (116) from the closed position to the open position is detected . The "retracted" position, characterized in that the above-mentioned "open" position, according to claim 1 rotary stencil printer of the paper receiving device according. Upper plate closing detection means (180) for detecting that the upper plate (116) has returned to the closed position, and the upper plate closing detection means (180) returning the upper plate (116) to the closed position. Then, the guide plate driving means (200, 210 to 216) is operated to move at least one of the stop guide plate (122) or the pair of width guide plates (132) to the “closed” position. The paper receiving device for a rotary stencil printing machine according to claim 1 or 2 , further comprising a guide plate return control means.   A paper tray (112) that is adjacent to the paper discharge unit (109) of the printing machine main body for sequentially discharging printed paper and extends substantially along the paper discharge direction (90) below the paper discharge unit (109). ), A stop guide plate (122) facing the paper discharge unit (109) and extending in a direction substantially orthogonal to the paper discharge direction (90) above the paper tray (112), and the paper tray The discharge direction (90) above (112) and at an interval substantially equal to the width of the sheet discharged from the discharge portion (109) between the discharge portion (109) and the stop guide plate (122). A pair of width guide plates (132) extending substantially in parallel with each other and at least one of the stop guide plate (122) or the pair of width guide plates (132) are stacked on the paper tray (112). Guy to move in the direction of contact with the paper In a paper receiving device (110) of a rotary stencil printing press (101) provided with plate driving means (200, 210 to 216), a printing end detection means for detecting the printing end of the printing press main body, and the paper discharge unit ( 109) between a closed position that extends substantially along the paper discharge direction (90) and covers the top of the paper cradle (112) and an open position that opens the top of the paper cradle (112). Is an upper plate (116) supported by the main body of the paper receiving device so as to be rotatable, and an upper plate (122) supporting the stop guide plate (122) and the pair of width guide plates (132) extending below the upper plate (116). 116), upper plate opening start detecting means (180) for detecting the start of rotation of the upper plate (116) from the closed position to the opened position, and the printing end means detecting the printing end of the printing press main body. And the upper plate opening start detecting means (18 ) Detects the start of rotation of the upper plate (116) from the closed position to the open position, the guide plate driving means (200, 210 to 216) are operated to stop the stop guide plate (122). ) Or a guide plate retracting control for executing a guide plate retracting operation for moving at least one of the pair of width guide plates (132) to a “retracting” position outside the “closed” position approaching the sheets stacked on the paper receiving tray. A paper receiving device for a rotary stencil printing machine. Upper plate closing detection means (180) for detecting that the upper plate (116) has returned to the closed position, and the upper plate closing detection means (180) returning the upper plate (116) to the closed position. Then, the guide plate driving means (200, 210 to 216) is operated to move at least one of the stop guide plate (122) or the pair of width guide plates (132) to the “closed” position. 5. The paper receiving device for a rotary stencil printing press according to claim 4 , further comprising a guide plate return control means.

Images