JP3153225B2 - Boarding board insertion device and boarding board insertion method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board-inserting apparatus and a board-inserting method for inserting a board into a falling path of paper.

<Prior Art> In a printing operation by a sheet-fed printing press, after printing, a sheet stacked on a sheet stack of a sheet discharging device is taken out without stopping the machine, or in order to prevent set-off.
Every time a predetermined amount of paper is loaded, a board removing operation for taking out the machine without stopping the machine is performed.

In this board removal operation, when a predetermined number of sheets of paper have been dropped and stacked on the automatically descending paper stack, the stack is lowered slightly, and then the paper stack is positioned above the stacked paper. The board is inserted, the paper is dropped on the board, and a predetermined number of papers are stacked on the board again.

By performing such a stripping operation, a large pressure is not applied to the lower layer paper, so that set-off is prevented.

<Problem to be Solved by the Invention> If the sheet discharge unit is located at one place, it is necessary to quickly perform the above-mentioned board removing operation in accordance with the printing speed. For this reason, the work requires skill, and in particular, it is necessary to frequently perform the board removing work with the speeding up of the printing press, and the physical and
In addition to increased mental fatigue, paper may be caught and damaged by the board to be inserted, so it is unavoidable to reduce the operating speed of the machine only at the time of board removal or for printing where board removal is performed At present, the printing speed has been reduced from the beginning, and the increase in speed has been hindered.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a board removing plate inserting apparatus and a board removing board inserting method capable of automatically inserting a board removing board.

<Means for Solving the Problems> In order to achieve the above object, a plate-cutting plate insertion device of the present invention supports a lifting table on which a plurality of plate-cutting plates are stacked in close contact with a frame so as to be able to move up and down. A locking claw capable of holding the plate removing plate is supported on the lifting platform so as to be able to dodge a prepared plate below when the lifting platform is lowered, and the topmost plate removing plate loaded on the lifting platform is supported. An insertion position detecting means for detecting that the lifting platform has been raised to a predetermined state where the plate is located at the plate removing plate insertion position; and a plate removing plate inserting means for moving to the sheet discharging section side is provided on the frame; When it is detected that the elevating platform has risen to a predetermined state, the control means moves the boarding plate inserting means to insert the uppermost boarding board of the boarding boards loaded on the elevating platform into the paper discharge unit side. It is characterized by having.

In addition, according to the present invention, there is provided a method for inserting a sheet removing plate, comprising a sheet releasing means, comprising: By driving the release means, the sheet discharge position can be selectively switched between the upstream sheet discharge section and the downstream sheet discharge section, and two sheet cutting plate insertion devices for automatically inserting the sheet cutting plate into the sheet discharge section. In the sheet-fed printing press provided in the vicinity of each of the paper discharge units, the board-mounting plate inserting device supports a lifting platform on which a plurality of board-mounting plates are stacked in close contact with the frame so as to be able to move up and down, and the lifting platform supports the lifting platform. A locking claw capable of holding the plate-cutting plate is supported so as to be able to dodge a prepared plate-cutting plate at the time of descending of the elevating table, and the uppermost plate-cutting plate of the plate-cutting plate loaded on the elevating plate is a plate. An insertion position detecting means for detecting that the lifting platform has been raised to a predetermined state located at the take-up plate insertion position. The frame is provided with a board removing plate inserting means for moving to the sheet discharging unit side, and when the insertion position detecting means detects that the lifting platform has been raised to a predetermined state, the board removing board inserting means is moved to move the lifting platform up and down. Control means for inserting the uppermost plate removing plate of the plate removing plate loaded on the sheet discharging unit side, driving of paper release means, elevating and lowering of the lifting table of the plate removing plate inserting device and plate In conjunction with the movement of the take-out plate insertion means, the take-up plate insertion device provided in the discharge portion on the side where the sheet is not discharged is driven to insert the uppermost plate take-up plate into the discharge portion side. In addition, the plate removing plates are alternately inserted into the paper discharge section where the paper is not discharged.

<Effect> In the plate-board inserting apparatus having the above configuration, the uppermost plate of the plurality of plate-boards is positioned at the plate-board insertion position by raising the elevating table, and the uppermost plate is inserted by the plate-board inserter. Insert the take-off plate into the paper output section. The lifting of the lifting table is repeated in sequence, and the uppermost plate removing plate is positioned at the plate removing plate insertion position, and the plate removing plates are sequentially inserted.

<Embodiment> FIG. 1 shows a front view of a sheet discharging section provided with a plate-cutting plate insertion device according to an embodiment of the present invention, and FIG. 2 shows a schematic plan view thereof.

Between the left and right frames 2 of the paper discharge device 1, a pair of paper discharge chains 3 running in a direction indicated by an arrow A in FIG. A plurality of sets of the claw poles 4 are provided. The claw rod 4 is provided with a claw 6 for holding the paper 5, and a paper release cam 7 is provided with a paper release device 9.
The grip of the paper 5 is released by opposing the cam 8.

In the transport direction of the paper 5, two sets of paper output stackers (pile) 10
The pile 10 is provided with a paper stack 11 that moves up and down automatically. The frame 2 is provided with a paper release device 9 as a paper release means corresponding to each pile 10.
Is provided with a cylinder 12 for changing the phase of the cam 8 to adjust the facing state of the paper release cam 7 to maintain or release the grip of the paper 5 by the pawl 6.

In other words, by driving the cylinder 12, while holding the grip of the paper 5 on one (for example, upstream) pile 10 side, the grip of the paper 5 is released on the other (for example, downstream) pile 10 side, and The paper 5 is discharged alternately to the pile 10 of FIG.

At the side of each pile 10, there is provided a board-inserting device 13 for automatically supplying a board to the paper stack 11.

The configuration of the plate removing plate insertion device 13 will be described. FIG. 3 shows a front view of a state in which the lifting bar is raised, and FIG. 4 shows an IV in FIG.
-The arrow IV is shown.

A guide rail 15 extending in the up-down direction is provided on a frame 14 on the side of the plate removing plate insertion device 13, and an elevating plate 17 is supported on the guide rail 15 via a guide roller 16 so as to be able to move up and down. An elevating bar 18 extending in a horizontal direction perpendicular to the traveling direction of the paper 5 is fixed to a lower portion of the elevating plate 17, and the elevating bar 18 is moved up and down by elevating the elevating plate 17. That is, the lifting board is constituted by the lifting plate 17 and the lifting bar 18.

A pair of sprockets 20 are supported on the upper and lower sides of the frame 14, and a chain 21 having one end fixed to the lifting plate 17 and the other end fixed to the lower end of the lifting plate 17 is wound around the sprocket 20. An elevating motor 22 is provided on the frame 14, and the sprocket 20 is rotated via a driving sprocket 19 by driving of the elevating motor 22. That is, when the elevating motor 22 is driven, the elevating bar 18 moves up and down together with the elevating plate 17 via the driving sprocket 19, the sprocket 20, and the chain 21. Incidentally, when the lift motor 22 rotates forward, the lift bar 18 moves up, and when the lift motor 22 rotates reversely, the lift bar 18 moves down.

As shown in FIG. 4, the lifting bar 18 supports a pawl 24 as a locking claw that is engaged with a paper stacking plate 23 as a laminated board-cutting plate and holds the paper stacking plate 23. Is fixed in contact with the elevating bar 18 in the horizontal state shown in FIG. 4, and is rotatable only in the clockwise direction in the figure. That is, when the lifting bar 18 is raised, the pawl 24 is not rotated and the pawl 24 holds the paper stacking plate 23, and when the lifting bar 18 is lowered, the paper loading plate 23 waits at the lower preparation position. In this case, the pawl 24 is rotated by the stacking plate 23 to avoid the stacking plate 23.

Reference numeral 25 in FIG. 1 denotes a guide for carrying a large number of paper stacking boards 23 stacked on a hand lifter (not shown) into the frame 14.

As shown in FIG. 3, the lower part of the frame 14 is provided as a lower limit detecting means for detecting the lifting bar 18 at a position where the pawl 24 avoids the lowermost sheet stacking plate 23 of the sheet stacking plate 23 at the preparation position. The lower limit switch 26 is attached. An upper limit switch 27 for detecting the upper limit of the lifting bar 18 and a top stack 23 of the stack 23 held by the lifting bar 18 are provided at the upper portion of the frame 14 at the insertion position (predetermined position). ), And an insertion position detection switch 28 as insertion position detection means for detecting that the paper stacking plate 23 is held by the lifting bar 18.
A remaining number detection switch 29 is provided for detecting the position of the elevating bar 18 when the remaining number of sheets reaches a predetermined number (for example, three) and generating an alarm.

On the other hand, the frame 14 at the paper stacking plate insertion position is provided with a board removing plate inserting means 30 for inserting the topmost paper stacking plate 23 to the paper discharge position 1 side.

The configuration of the plate removing plate inserting means 30 will be described with reference to FIGS. FIG. 5 is a front view of the upper portion of the frame 14 provided with the plate removing plate inserting means 30, and FIG.
FIG. 7 is a view taken along the line VI, and FIG. 7 is a view taken along the line VII in FIG.

As shown in FIG. 5, a second frame 31 is formed on the frame 14 so as to extend in parallel with the lifting bar 18, and sprockets 32 are provided at both ends of the second frame. An insertion drive motor 33 is provided at the upper end of the frame 14, and a drive chain 35 is wound around the drive sprocket 34 and the sprocket 32 of the insertion drive motor 33. still,
In the figure, reference numeral 40 denotes a tension sprocket for applying tension to the drive chain 35.

As shown in FIGS. 6 and 7, a pushing piece 36 is fixed to the drive chain 35, and the pushing piece 36 is moved along the second frame 31 via the drive chain 35 by the forward / reverse driving of the insertion drive motor 33. It reciprocates. A front end limit switch 37 for detecting the front end of the pushing piece 36 is provided at the end of the second frame 31 on the side of the sheet discharging device 1 (the left end in FIG. 5). At the right end in FIG. 5), a rear end limit switch 38 for detecting the rear end of the pushing piece 36 is provided. By moving the push piece 36 from the rear end to the front end, the paper stack 23 at the paper stack insertion position is inserted into the paper discharge device 1.

The operation of the above-described boarding plate inserting apparatus 13 will be described with reference to FIG. 8, and the boarding board inserting method of the present invention will be described.
The board inserter 13 provided with the board inserter 30 is operated under the control of the controller. That is, FIG. 8 shows a control block of the plate insertion device.

One sheet stack 23 is placed on the sheet stack 11 of each sheet discharging device 1, and a large number of sheets 23 are stacked on the claws 24 of the elevating bar 18 at the lower end.

When the printing press is started, the preset counter RR1 activates the cylinder 12 of the paper release device 9 for every predetermined number of sheets (for example, 500 sheets) to change the phase of the paper release cam 7, and the predetermined number of sheets are alternately put on the two piles 10. The paper is discharged one by one.

Hereinafter, the operation of the board removing plate inserting device 13 will be described. Each pile 10 is provided with the same board removing plate inserting device 13, and the operation described below is also performed alternately by the preset counter RR1. That is, the operation of the plate removing plate insertion device 13 is performed in conjunction with the driving of the paper release device 9.

The lifting bar 18 is at the lower end, the pusher 36 is at the rearward end, and the lower limit switch 26 and the rear end limit switch 38 are on. In this state, the reset input terminal R of the flip-flop FF4 is set to the high level to reset, the set input terminal S of the flip-flop FF8 is set to the high level, the output of the Q terminal is set to the high level, and the timer T4 is operated. After a certain period of time, the output goes high and AND gate S1
Has been entered. When the rear end limit switch 38 is turned on, the reset input terminal R of the flip-flop FF7 is set to a high level for resetting, and the set input terminal S of the flip-flop FF2 is set to a high level for setting. When the timer reaches the level, the timer T1 is operated, and after a certain period of time, the output goes to the high level and passes through the OR gate G2. When the automatic supply operation button 39 is turned on, the set input terminal S of the flip-flop FF5 is set to a high level to set the flip-flop FF6.
Is reset by setting the reset input terminal R to a high level. When the flip-flop FF5 is reset, when there is an output from the timer T4 through the AND gate S1, the output goes through the AND gate S2 and also through the OR gate G2 to set the set input terminal S of the flip-flop FF3 to high level. . When the flip-flop FF3 is set, its Q terminal output becomes high level, and the motor controller
The forward rotation input terminal of MD2 is set to a high level, and while the forward rotation input terminal is at a high level, the lifting motor 22 is rotated forward to raise the lifting bar 18.

When the elevating bar 18 rises and the uppermost paper stacking plate 23 reaches the insertion position, the insertion position detection switch 28 is turned on, the reset input terminal of the flip-flop FF3 is set to a high level to reset, and the elevating motor 22 is reset. Stop normal rotation.

That is, when the elevating bar 18 rises until the topmost paper stacking plate 23 reaches the insertion position, the lifting bar 18 stops rising and the paper stacking plate 23 stands by at the insertion position.

On the other hand, when the predetermined number of sheets is counted by the preset counter RR1, the discharge is switched to the other pile 10, the set input terminal S of the flip-flop FF1 is set to a high level, and the Q terminal output is set to a high level. Set the forward input terminal of the motor controller MD1 to high level. As a result, the insertion drive motor 33 rotates in the forward direction, the pusher 36 advances through the drive chain 35, and the stacking board 23 is inserted into the pile 10.

In the pile 10 in which the stacking board 23 is inserted, the stacking platform 11 slightly rises, and the position of the stacking board 23 is set to an optimal state for discharging paper.

When the stacking board 23 is inserted into the pile 10, the front end limit switch 37 is turned on, the reset terminal R of the flip-flop FF1 is set to a high level, and the timer T3 is operated. When the flip-flop FF1 is reset, the forward input terminal of the motor control device MD1 becomes low level, and the insertion drive motor 33 stops. When a certain period of time elapses after the operation of the timer T3, the output thereof goes to a high level, and the set input terminal S of the flip-flop FF7 is set to a high level for setting. When the flip-flop FF7 is set, the output of the Q terminal goes high, and the inverting input terminal of the motor control device MD1 goes high. The motor control device MD1 reverses the insertion drive motor 33 while the inverting input terminal is at the high level. When the insertion drive motor 33 reverses and the push piece 36 reaches the retreat end, the rear end limit switch 38 is turned on to reset the reset input terminal R of the flip-flop FF7 to a high level and reset. When the flip-flop FF7 is reset, the inverting input terminal of the motor control device MD1 becomes low level, and the insertion drive motor 33 stops.

When the pusher 36 is retracted and the rear end limit switch 38 is turned on, the flip-flop FF2, the timer T1, the OR gate G
2. The forward rotation input terminal of the motor control device MD2 becomes high level via the flip-flop FF3, the lift motor 22 rotates forward again, and the lift bar 18 rises.

Each time the top stack 23 reaches the insertion position, the above-described insertion of the stack 23 and the lifting of the lifting bar 18 are repeated, and the stack
Automatically supplies 23. The insertion of the paper stacking plate 23 is performed while the paper is being discharged to the other pile 10, so that the discharge is continuously performed without interruption.

The insertion of the paper stacking plate 23 and the lifting of the lifting bar 18 are repeated,
When the elevating bar 18 rises to a state where the number of remaining sheets 23 is several, the remaining number detection switch 29 is turned on, and only one pulse is output at the rise through the one-shot circuit OS, and the flip-flop FF6 Is set to a high level. When the flip-flop FF6 is set, its Q terminal output becomes high level, immediately activates the buzzer BZ1 and issues an alarm to notify the operator of the paper board 23.
Inform that you need to prepare.

The operator newly prepares the paper stacking plate 23 below the lifting bar 18 during the alarm, turns on the automatic supply operation button 39, and sets the reset input terminal of the flip-flop FF6 to high level. Since the flip-flop FF6 has the reset priority, its Q terminal output becomes low level to stop the alarm. When the flip-flop FF6 is set and a new stacking board 23 cannot be prepared due to the convenience of the operator, the timer T2 is operated, and after a certain time (several minutes), the machine stop signal is output, and the printing press is started. Stop. Accordingly, these constitute a stopping means, and unless the alarm buzzer BZ1 sounds and the automatic supply operation button 39 is not turned on for a certain period of time, the machine stops in order to avoid trouble in the printing press.

When the remaining stacking board 23 is inserted, the upper limit position of the lifting bar 18 is detected by the upper limit switch 27, and the upper limit switch 27 is turned on. Upper limit switch 27
Is turned on, the set input terminal S of the flip-flop FF4 is set to a high level, the output thereof is set to the high level, and the inverted input terminal of the motor control device MD2 is set to the high level. The motor control device MD2 inverts the elevating motor 22 while the inverting input terminal is at the high level. When the elevating bar 18 reaches the lowering limit due to the inversion of the elevating motor 22, the lower limit switch 26 is turned on, and the flip-flop
The reset input terminal S of FF4 is set to a high level to reset. When the flip-flop FF4 is reset, the inverting input terminal of the motor control device MD2 becomes low level, and the lifting motor 22 stops. At the same time, the lower limit switch
When 26 is turned on, the set input terminal S of the flip-flop FF8 is set to a high level to set. At this time, if the alarm buzzer BZ1 is released by the operator (a new stacking board 23 is prepared), the set signal of the flip-flop FF5 is input to the AND gate S1, and the timer T4 is activated. After a certain time, the elevating motor 22 rotates forward, raises the stacking board 23 again, and repeats the stacking board insertion operation.

When the lifting bar 18 is lowered, the pawl 24 is rotated by the newly prepared paper stack 23 and passes through the paper stack 23, and
24 does not prevent the lifting bar 18 from lowering.

The above-described sheet removing plate insertion device 13 is provided in each pile 10 and the paper discharge is alternately switched to the pile 10 on the side where the automatic supply of the paper stacking plate 23 is completed, and the pile on the side where the paper discharge is not performed.
A paper stacking plate 23 is sequentially inserted into 10 to prepare for paper discharge. The above operations are repeated to continue printing, and the discharged printing paper is carried out without interruption by a transport device (not shown).

According to the above-described board removing plate inserting apparatus and the board removing board inserting method, by operating the automatic supply operation button 39, it is detected that the uppermost paper stacking board 23 has come to the supply position by the detection of the insertion position detection switch 28. Detecting and automatically inserting a plurality of paper stacks 23 into the pile 10 continuously and accurately, and when the stacks 23 are running low, an alarm is issued. Until this is done, you can concentrate on other tasks (such as monitoring the printing press). Further, when the alarm is issued and the preparation work of the paper stacking board 23 cannot be performed within a certain period of time, the printing press stops and troubles can be prevented.

In addition, since the above-described board removing plate insertion device 13 automatically inserts the uppermost paper stacking plate 23 of the stacked paper stacking plates 23 by the pushing pieces 36, the driving force at the time of insertion is small. There is no interference between the paper stacking boards 23, and the durability of the paper stacking boards 23 themselves is improved.

In addition, according to the above-described method of inserting a board, the paper board 23
Automatically and alternately can be inserted into the two piles 10 alternately and accurately, and the paper stack 23 is inserted into the other pile 10 while the paper is ejected from one pile 10, and this is alternately switched. ,
The paper discharge can be performed continuously without lowering the operation speed, and the paper stacking plate 23 is inserted when the paper discharge is not being performed.

<Effect of the Invention> Since the plate removing plate insertion device of the present invention automatically and accurately inserts the uppermost plate removing plate loaded on the elevating table into the paper discharge section, The driving force at the time of insertion may be small, and there is no interference between the boarding plates, and the durability of the boarding plate itself is also improved.

In addition, the board removing plate insertion method according to the present invention enables the board removing plate to be automatically and alternately and accurately inserted into the two paper output sections, and the other paper output section during the paper output in one paper output section. The plate is inserted into the tray and alternately switched in tandem with the drive of the paper release means, so that the paper can be discharged continuously without lowering the operating speed, and the plate is removed. Since it is inserted when not performed, the printing paper is not damaged by the board.

As a result, it is possible to reduce the labor of the operator and prevent the waste paper, and there is no possibility that the speeding up of the printing operation is hindered.

[Brief description of the drawings]

FIG. 1 is a front view of a paper discharge section provided with a board removing plate insertion device according to one embodiment of the present invention, FIG. 2 is a schematic plan view thereof, and FIG. 3 is a board removing plate in which a lifting bar is raised. FIG. 4 is a front view of the insertion device, FIG. 4 is a view taken along the line IV-IV in FIG. 3, FIG. 5 is a front view of the plate cutting plate insertion means, and FIG. 6 is a line VI-VI in FIG. 7, FIG. 7 is a view taken in the direction of the arrow VII in FIG. 5, and FIG. 8 is a control block diagram of the cutting board insertion device. In the drawing, 1 is a paper discharge device, 10 is a paper discharge stacking device (pile), 13 is a plate cutting plate insertion device, 14 is a frame, 18 is an elevating bar, 22 is an elevating motor, 23 is a paper stacking plate, and 24 is a pawl. , 26 is a lower limit switch, 27 is an upper limit switch, 28 is an insertion position detection switch, 29 is a remaining number detection switch, 30 is a plate cutting plate insertion means, 33 is an insertion drive motor, 35 is a drive chain, and 36 is a pushpiece. Reference numeral 37 denotes a front end limit switch, 38 denotes a rear end limit switch, and 39 denotes an operation button for automatic supply.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 33/02

Claims (2)

(57) [Claims] A frame on which a plurality of plate-mounting plates are stacked in close contact with each other so as to be able to move up and down, and a locking claw that can hold the plate-mounting plate on the frame; The prepared board is supported so that it can be dodged, and it is detected that the uppermost board of the board mounted on the elevator is in the predetermined state where the board is located at the board insertion position. The frame is provided with a board removing plate inserting means for moving to the paper discharging section side, and when the insertion position detecting means detects that the lifting platform has been raised to a predetermined state, the board removing board inserting means is provided. A board inserter, comprising: a control unit for moving the uppermost board of the board mounted on the elevating table and inserting the board into the sheet discharging unit. 2. A paper discharge means having a paper release means and driving a paper release means of a paper discharge part on an upstream side of a paper discharge part of two paper discharge parts arranged in parallel in a paper discharge and conveyance direction to set a paper discharge position on an upstream side. Sheet-fed printing press equipped with a plate-board insertion device that automatically switches between the paper unit and the downstream paper-discharge unit and automatically inserts a plate-board into the paper-discharge unit near the two paper-discharge units. In the plate-mounting plate insertion device, a lifting table on which a plurality of plate-cut plates are stacked in close contact with each other is supported on the frame so as to be able to move up and down, and a locking claw capable of holding the plate-mounting plate on the lift table. When descending, the platen plate prepared below is supported so that it can dodge, and the elevator plate rises to a predetermined state where the platen plate at the top of the platen plate loaded on the elevator is located at the platen plate insertion position The insertion position detecting means for detecting that the Provided on the frame, when the insertion position detecting means detects that the elevating platform has been raised to a predetermined state, the board removing plate inserting means is moved to eject the uppermost plate removing board of the boarding boards loaded on the elevating platform. It is configured to have a control means to be inserted into the paper part side, and the discharge of the paper is performed by interlocking the driving of the paper release means, the raising and lowering of the elevating table of the planing board insertion device, and the movement of the planing board inserting means. Driving the board removal plate insertion device provided in the paper ejection section on the other side, inserts the uppermost board removal board into the paper ejection section side, and alternately removes the board to the paper ejection section where paper is not discharged. A method for inserting a board, comprising inserting a board.