JPH0638880Y2 - Laminated paper reversing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a transporting vehicle for transporting stacked sheets of paper in a printing plant and having an attachment for sheet reversal for performing the reversing operation. Is.

[Prior Art] In a printing factory, in order to perform a printing operation on the front and back sides of the paper, it is necessary to reverse the laminated printing paper.

In order to perform this sheet reversing operation, a sheet reversing machine is known in which stacked sheets are clamped by being sandwiched by forks from above and below, and the side surfaces are rotated while being supported by side stoppers. (For example, JP-A-59-108647, JP-A-60-137.
(See Japanese Patent No. 740) [Problems to be solved by this invention] As described above, in the paper reversing work, it is common to press the paper from above and below to rotate it. However, there is a problem that the ink sticks with the ink, and it is necessary to weaken the pressing force. In this case, a side stopper is required to prevent the falling of the sheet during rotation.

By the way, if side stoppers are provided on both the left and right sides, it is possible to prevent the paper from falling off regardless of the rotation direction, but it not only increases the cost but also inserts the paper in a vertically standing state between the paper. There is a problem that it is impossible to remove the scrapboard that has been removed.

Further, if the stopper is provided on only one side, it is convenient for inserting and removing the slats, but the rotation direction must be specified to prevent the falling of the sheet, which makes automatic operation difficult. is there.

This invention has been made to solve the above-mentioned problems, and a side stopper for preventing the falling of the sheet is provided on only one side to enable the work of inserting and removing the sludge plate, and An attempt is made to provide a transport vehicle with an attachment for paper reversal that can automatically perform a series of sequence operations of turning clockwise when the position is on the right side and counterclockwise when the position is on the left side, depending on the position. It is a thing.

[Means for Solving the Problems] The present invention provides means for solving the above problems, and is a vertically movable body that is rotatable integrally with the rotator 3 on a bogie that is self-propelled. Detecting means for detecting the position of the side stopper 4 in a sheet reversing machine equipped with the upper and lower forks 1 and 2 and the side stopper 4 capable of side shifting.
10 and 11 are provided, and when the position of the side stopper 4 detected by the detecting means is on the right side of the rotator 3, the rotator 3 is rotated clockwise, and when it is on the left side, only the counterclockwise rotation is possible. The main purpose is a paper reversing machine.

[Operation] According to the present invention, the detecting means 10 and 11 for detecting the position of the side stopper 4 are provided, and when the position of the side stopper 4 detected by the detecting means is on the right side of the rotator 3, the rotator 3 is detected. Since it is possible to rotate only clockwise and counterclockwise when it is on the left side, a series of paper reversal sequence operations can be automated without erroneous rotation direction of the rotator 3, as will be described later in detail in an embodiment.

That is, the initial position of the side stopper 4 is the rotator 3.
When it is located on the right side of the paper, the paper is turned clockwise, and when it is located on the left side, the paper is turned counterclockwise. You can

[Embodiment] FIGS. 1 to 5 show an embodiment of the present invention.

FIG. 1 shows the appearance of the laminated paper reversing machine of the present invention.
(A) is a front view, (b) is a side view, (c) is a schematic view of a back surface.

In the figure, reference numeral 1 is an upper fork, and 2 is a lower fork, both of which are configured to perform a clamping operation and a releasing operation by a hydraulic cylinder.

Reference numeral 3 denotes a rotator which is rotationally driven by a hydraulic motor, 4 is a side stopper which is opened and closed by a hydraulic cylinder, and the forks 1 and 2 and the side stopper 4 are supported by the rotator 3 so as to rotate integrally. Has become.

Reference numeral 5 denotes an operation panel provided in the driver's seat, which has an automatic operation start switch.

Reference numerals 6 and 7 denote pallets or pressing plates for supporting the upper and lower sides of the stacked sheets of paper 9, and 8 is a sludge plate inserted between the sheets of paper 9 at appropriate intervals.

FIG. 2 is a schematic view of the rotator 3 as seen from the front, showing a state in which the side stopper 4 is located on the right side of the rotator 3.

Reference numeral 10 is a stopper right position detection switch, and 11 is a stopper left position detection switch, which are fixedly attached to the body frame side. Reference numeral 12 is a dog for turning on the switches 10 and 11, which is projectingly provided on the rotator 3 side. As shown in the drawing, when the side stopper 4 is located on the right side and is in the vertical state, the right position is detected. When the switch 10 is turned on and the rotator 3 is rotated 180 ° and the side stopper 4 is positioned on the left side and is in the vertical state, the left position detection switch 11
Is turned on.

As shown in FIG. 2 (a), the positions of the switches 10 and 11 and the dog 12 are such that the dog 12 is projected at one location on the outer circumference of the rotator 3 and the switches 10 and 11 are mounted on the main body frame side.
The dogs 12a and 12b having long and short shapes 2 may be provided at symmetrical positions at 180 degrees behind each other around the outer periphery of the rotator 3, as shown in FIG. 2 (b). However, the switches 10 and 11 may be provided in parallel at one location on the body frame side.

FIG. 3 is an operational flowchart and a corresponding simplified operational status diagram.

When the start switch of the operation panel 5 is turned on, the stopper right position detection switch 10 or the stopper left position detection switch
When 11 is ON, upper and lower forks 1 and 2 are indicated by arrow a
Direction and clamp operation is performed to clamp the stacked sheets 9 from above and below.

That is, it is confirmed by the position detection switch 10 or 11 that the side stopper 4 is correctly positioned on the right or left and is in the vertical state, and then the clamp operation by the upper and lower forks 1 and 2 is performed.

When the clamp operation by the upper and lower forks 1 and 2 is completed, the clamp end detecting means, for example, the pressure switch for detecting the clamp pressure is activated, and the side stopper 4 is closed, and the stopper 4 moves in the direction of arrow b. The side surfaces of the stacked sheets 9 (more precisely, the side surfaces of the pallets 6 and 7 and the slats 8) are supported.

When the closing operation of the stopper 4 is completed, the closing operation completion detecting means, for example, the detection switch is activated, and then the rotator 3 is activated.
Move to rotate.

In this case, when the stopper right position detection switch 10 is turned on, it rotates clockwise as shown by an arrow c in the figure, and conversely, when the stopper left position detection switch 11 is turned on, it rotates counterclockwise. Turn to.

In this way, the stacked sheets 9 are forked from above and below.
It is clamped by 1, 2 and rotated to the right (or left) while the side surface is supported by the side stopper 4.

When rotated 180 ° clockwise, the side stopper 4
Is located on the left side of the rotator 3 and is in a vertical state.
The stopper left position detection switch 11 turns ON, and conversely, it turns counterclockwise.
When rotated 180 °, the side stopper 4 is positioned on the right side and is in a vertical state, so that the stopper left position detection switch 10 is turned on.

When the switch 11 or 10 is turned on, the rotation is stopped and the opening operation of the stopper 4 is started, and the stopper 4 moves in the arrow d direction and separates from the side surface of the stacked sheets 9 and stops.

By the above, the reversing operation of the stacked sheets 9 is completed.

A hydraulic circuit for performing the above sequence operation is shown in FIG.
Similarly, the electric circuit is shown in FIG.

In the figure, 10 is a stopper right position detection switch, and 11 is a stopper left position detection switch, which are arranged in the same positional relationship as that shown in FIG.

Reference numeral 20 is a hydraulic motor for rotating the shaft 21 of the rotator 3.

Reference numeral 22 denotes a hydraulic cylinder for side-shifting and opening / closing the side stopper 4.

Reference numeral 23 is a solenoid valve for switching the supply / discharge direction of hydraulic pressure to / from the hydraulic motor 20, and when the solenoid 23a is turned on, the rotator shaft 21 rotates clockwise and the other solenoid 23b is turned on.
When it is N, it becomes counterclockwise.

Reference numeral 24 is a solenoid valve for switching the supply / discharge direction of hydraulic pressure to / from the hydraulic cylinder 22. When the solenoid 24a is turned on, the side stopper 4 is closed and the other solenoid 24b is closed.
When is turned on, side shifts in the opening direction.

25 is a hydraulic power package in which a hydraulic pump, motor, relief valve, etc. are integrated, 26 is a pressure switch, and stopper 4
Is for detecting the completion of the closing operation.

30 is an automatic operation start switch provided on the operation panel 5,
31 to 36 are relays, 37 and 38 are timers, 39 is paper clamp completion detection switch, 40 is stopper close completion detection switch, 41
Numerals 47 to 47 are diodes, and 48 is a motor drive relay of the hydraulic power package 25.

[Explanation of the operation of the embodiment] A concrete explanation will be given in correspondence with the explanation of the operations in the flow chart of FIG. Note that the clamp and release operations of the forks 1 and 2 and the closing operation of the stopper 4 are outside the scope of the present invention, and a description thereof will be omitted.

When the start switch 30 is turned on, the relay 31 is excited and its contact 31a is turned on, and the excitation circuit is self-held. However, if both the stopper right position detection switch 10 and the left position detection switch 11 are OFF, the relay 34 is not excited and its contact 34a is OFF, so the excitation circuit is not closed and the start switch 30 is turned ON. But it doesn't start.

That is, the rotator 3 can be started only when the rotator 3 is in the correct starting position and the side stopper 4 is in the vertical position on either the left or right side.

The clamping operation of the forks 1 and 2 and the closing operation of the stopper 4 are performed by another sequence circuit, and when completed, the completion detection switches 39 and 40 are sequentially turned on.

(3) When the side stopper 4 is located on the right (left) side of the rotator 3 in the starting state, the stopper right (left)
Position detection switch 10 (11) is ON, so relay
32 (33) is excited, its contact 32a (33a) is turned on, and solenoid 23a (23b) is excited, and at the same time relay 35 (3
6) is excited and its contact 35a (36a) is turned on, so that both exciting circuits are self-maintained.

At this time, the timer 37 is passed through the excitation circuit of the relay 35 (36).
Is energized and the contact 37a is turned on after the passage of a certain time. (The operation of the timer 37 will be described later.) At the same time, the relay 48 is excited via the excitation circuit of the solenoid 23a (23b), the motor of the hydraulic power package 25 is activated, and the hydraulic pressure is transmitted via the solenoid valve 23 to the hydraulic pressure. It is sent to the motor 20 and the shaft 21 of the rotator 3 rotates clockwise (left).

When the rotator 3 starts rotating to the right (left), the second
As shown in the figure, the slight rotation of the rotator 3 cuts the contact between the stopper right (left) position detection switch 10 (11) and the dog 12, and the switch 10 (11) is turned off, but the solenoid 23a (23b ) Continues to be excited by the self-holding circuit of the relay 35 (36), so that the rotator 3 continues to rotate clockwise (left).

(4) When the rotator 3 rotates 1/2 turn (180 ° rotation), this time the stopper left (right) position detection switch 11 (10) turns on and the relay 33 (32) is excited, and its b contact 33b (32b). )
Is turned off, the solenoid 23a (23b) is released, the solenoid valve 23 returns to the neutral position, the hydraulic motor 20 stops, and the rotator 3 rotates to the right (left).

At that time, by exciting the relay 33 (32), its contact 33a (3
2a) is turned on, but the relay 35 (36) continues to be excited by the self-holding circuit, so its b contact 35b (36)
Since b) remains OFF, the solenoid 23b (23a) is not excited and the neutrality of the solenoid valve 23 is maintained.

At the same time, the contact 34a of the relay 34 turns ON, and the timer 3
Since the contact 37a is turned on by the operation of 7, the stopper opening solenoid 24b is excited and the stopper 4 moves in the opening direction.

After a certain period of time, the b contact 38 is activated by the operation of the timer 38.
Is turned off, the solenoid 24b for opening the stopper is released,
The solenoid valve 24 returns to the neutral position, and the opening operation of the stopper 4 is completed.

At the same time, the contact 38b in the excitation circuit of the relay 31 is also turned off, so the relay 31 is released and the initial state is restored.

The timer 37 is provided to prevent the stopper 4 from starting the opening operation when the start switch 31 is turned on.

That is, in the starting state, the stopper position detection switches 10,1
If any one of the above is ON, the relay 34 is excited and its contact 34a is ON, but the timer contact 37a is OFF, so the stopper opening solenoid 24b is not excited. The timer 37 is connected to the excitation circuit of the relays 35 (and 36) and is excited at the same time as the start of rotation. After that, the contact 37a turns ON after the timer set time has elapsed, so the stopper 4 is opened after the rotation is completed. It is possible to operate.

[Effects] According to the present invention, the rotator 3 is provided with the detection means 10 and 11 for detecting the position of the side stopper 4, and when the position of the side stopper 4 detected by the detection means 10 and 11 is on the right side of the rotator 3. When the initial position of the side stopper 4 is located on the right side of the rotator 3, the sheet is reversed clockwise and, on the contrary, it is located on the left side. In this case, the sheet is reversed counterclockwise, and in any case, the reversing operation can be performed while preventing the sheet from falling off, and a series of sequence operations can be automated.

[Brief description of drawings]

FIG. 1 shows the appearance of the laminated paper reversing machine of the present invention. (A) is a front view, (b) is a side view, (c) is a rear view, and FIG. 2 is an enlarged schematic view of the rotator 3 as seen from the front. FIGS. 3 and 4 are operational flowcharts and corresponding operational status explanatory diagrams, FIG. 4 is a hydraulic circuit diagram, and FIG. 5 is an electrical circuit diagram. 1: Upper fork 2: Lower fork 3: Rotator 4: Side stopper 5: Control panel 6,7: Pallet 8: Drain board 9: Paper 10: Stopper right position detection switch 11: Stopper left position detection switch 20: Hydraulic motor (For rotator rotation drive) 21: Rotator shaft 22: Hydraulic cylinder (for stopper movement) 23: Solenoid valve (for rotator direction switching) 23a: Rotator clockwise solenoid 23b: Rotator counterclockwise solenoid 24: Solenoid valve (stopper movement) 24a: Stopper closing solenoid 24b: Stopper opening solenoid 25b: Hydraulic power package 26: Pressure switch 30: Automatic operation start switch 31 to 36: Relay 37, 38: Timer 39: Paper clamp completion detection switch 40: Stopper closing completion detection switch 41 to 47: Diode, 48: Relay

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B66F 9/18 V 7515-3F

Claims (1)

[Scope of utility model registration request] 1. A vertically movable up / down fork (1) rotatable integrally with a rotator (3) on a self-propelled carriage.
(2) and side stopper (4) that can be freely shifted
In the sheet reversing machine having the above, detection means (10) (11) for detecting the position of the side stopper (4) are provided, and the position of the side stopper (4) detected by the detection means is on the right side of the rotator (3). Rotator when in (3)
The paper reversing machine is characterized in that it is only possible to turn to the right and to the left when it is on the left.