JPS5917011B2 - Paper reversing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper reversing device for collectively reversing a large amount of sheet-fed printing paper stacked during front-back inspection of sheet-fed printed matter.

Conventionally, when inspecting the front and back sides of sheet-fed printed matter, it is common to remove pallets from the upper and lower surfaces of thickly stacked sheets of paper, and then turn the sheets over using a forklift or the like.

As a result, it was inefficient and required a large work area. In order to eliminate and improve such drawbacks, the present invention is capable of reliably and quickly reversing sheet-fed printing paper without destroying the pile of paper (for example, about 1m in height) that has been aligned. It is intended to be able to be reversed, to avoid accidents such as folding the corners of the paper or to reverse the paper, and to reduce the work area required for reversing, thereby greatly contributing to improving the efficiency of the inspection process.

The gist of the present invention is to provide clamp plates, each consisting of an air blow table, from which air flows out from a paper clamping surface whose paper contacting surface is flat, in relative amounts vertically, and to force air into these clamp plates. The blowers are connected to the opposite sides of the clamp plate, and the clamp plate is installed on the support frame so that it can be raised and lowered along the guide rod by an air press mechanism, and the support frame is attached to the rotating frame. In addition to being fixed at both the upper and lower ends, a rotating shaft is attached to the center of the rotating frame, and by rotating the rotating frame with the rotating shaft, the position of the support frame is alternately reversed vertically. A stopper cam with a concave portion formed at a stop position separated by 1800 mm is installed, and a stopper rod is provided opposite to this cam so as to be always elastically supported in the stopper locking direction, and the stopper rod is provided so as to be elastically supported in the locking direction. A solenoid for releasing the stopper is installed, and a cam for detecting a stopper release signal is separately set on the rotating shaft, and a micro switch is provided opposite to the cam for detecting the stopper release signal, and the power is supplied to the solenoid by these micro switches. A limit switch that contacts and separates as the clamp plate moves up and down is provided at a predetermined location, and a solenoid is used to control the release of the locking of the stopper of the switcher and the switching of the start of the blower. The paper reversing device also includes a handle attached to the front surface of the support frame so that the rotary frame can be rotated manually.

Next, the apparatus of the present invention will be explained with reference to the illustrated embodiment. In FIG. The contact surface is flat.

Air is then forced into the clamp plates 1 and 1 by the proars 3 and 3' connected to the opposite surfaces of the clamp plates 1 and 1, and flows out from the holes in the flat surfaces of the clamp plates. There is. A press mechanism 4, 47 using an air cylinder is disposed opposite to the clamp plates 1, V in a direction in which the two clamp plates 1, 1' are brought into pressure contact.

Each base of this press mechanism has support frames 5, 5, respectively.
/, and the clamp plates 1 and V are configured to be movable up and down in relative directions along respective opposing guide rods 6. The support frames 5 and 5' are each fixed to a rotating frame 5A, and this rotating frame 5A is connected to the support frames 5 and 5 by a rotating shaft 7 attached to the center.
It has a mechanism that allows it to be turned upside down alternately.

Reference numerals 8 and 8 are bearings for the rotating shaft 7, and reference numerals 9 and 9 are bearing mounting frames.

The rotating shaft 7 has a stopper cam 10 that can regulate the rotating frame 5A to stop at a fixed position when the rotating frame 5A is reversed 180 degrees vertically.
Also, cams 11 and 12 for detecting a stopper release signal are attached.

The stopper cam 10 is provided with recesses 10/, 10' at 180 stopper positions.

In addition, a stopper rod 13 is disposed opposite to the stopper rod 13 so as to be freely engageable and removable. Further, a solenoid 14 for releasing the lock is provided oppositely. In addition, the cam 1 for detecting the stopper release signal
Micro switches 15 and 16 are provided oppositely to 1 and 12, respectively. These micro switches 15 and 16 have a recess 1 in which the stopper rod 13 is at the stopper position of the cam 10.
The circuit can be switched so that power can be supplied to the solenoid 14 respectively when the solenoid 14 is engaged. In the above, the clamp plates 1 and 1' are shown holding the paper 2 under pressure from above and below.

Next, the operation of this clamp plate 1, 1/f) will be explained. The clamp plates 1, 1' normally return to the interval at which a predetermined number of sheets of paper 2 can be inserted (Fig. 2) and wait, and when the pedal-type power switch 18 is closed, the pro-applyers 3, 3' can be driven, and air is forced into the disk-shaped clamp plates 1 and 1, and this forced air flows out from the holes in the flat surfaces of the clamp plates 1 and V, and the air flow causes the paper 2 to be In addition to appropriately cooling the surface to be compressed, the paper 2 placed on the paper supply side table 19 can be easily transferred to the reversing device without causing accidents such as collapsing, corner bending, and reverse binding. Furthermore, the material can be transferred directly onto the flat surfaces of the clamp plates 1 and V without generating heat due to friction during transfer.

The clamping plates 1 and V, which force the air to flow out from the flat surface, consist of an air blow table known under the name "Air Tedel" (registered trademark), and in the present invention, a clamp consisting of such a table is used. The features of the plates 1 and V are utilized together.Next, when the two start switches 20 and 20 provided on the front of the clamp plates 1 and V are manually operated to close them at the same time, The press mechanism 4' can be driven, the clamp plate V will rise, and in conjunction with this rise, the limit switch 21 provided opposite to the base of the clamp plate 1 can be switched to the open state, whereby the paper 2 The blowers 3, 3' are kept in a stopped state while the clamp plate 1/+.

On the other hand, the press mechanism 4 is configured to operate slightly later than the press mechanism 4' through a timer (not shown), and for this reason, the clamping pressure is reduced by slipping off from both clamp plates 1, 1 when the paper 2 is reversed. After the paper 2 is clamped between the clamp plates 1 and V, the limit switches 17, 17 installed opposite to both clamps 1 and V move the paper 2 between the clamp plates 1 and V. 1, it is turned on by contact with V, and when this switch is closed, power can be supplied to the solenoid 14 via the micro switch 15 (or 16), and at the same time, the rotation of the rotating frame 5A is stopped by the stopper lever 13. To be released.

In this way, after the paper 2 is held under pressure by the clamp plates 1 and V, the rotating frame 5A can be manually rotated freely. At this point, the rotating frame 5A can be easily reversed by holding the manual handle 5B provided on the front surface of the frames 5, 5/.

The rotating frame 5A is rotated at a clamping position (the lower clamping plate side is raised more by adjusting the timer, etc.) so that the center of gravity of the paper 2 held under pressure by the clamping plates 1 and V is determined above the center of rotation. If it is shifted, the rotation in the reverse direction can be automatically performed without special manual rotation in response to the stop/release of the stopper rod 13 due to the closing and closing of the limit switch 17.

When the clamp plate 1, V is reversed, the circuit of the micro switch 15 that was feeding power to the solenoid 14 becomes open,
The stop lever 13 operates in the rotation stop direction, and the rotating frame 5A automatically stops at a position where it has rotated 1800 times vertically.

Next, when the start switch 20 is switched to open, the press mechanisms 4 and 4 are operated in the direction of releasing the dormitory clamps, and at the same time, the limit switch 2V is activated to move the clamp plates 1 and 1' to the open position.
can be switched to the closed state, and the prowers 3, 3' can be driven again.

Therefore, from this point on, the paper 2 after the clamp plates 1, 1' have been reversed can be easily taken out from the clamping holding position, and thereafter the next paper supply and the above operation are repeated alternately. . Since the paper reversing device of the present invention has the above-described configuration, the clamp plates 1 and 1' that hold the paper 2 under pressure can be reversed only in the rotation center area by the rotation shaft 7 attached to the center of the clamp plates. Therefore, the clamp plates 1 and V themselves do not require a pallet or a forklift like in the past, or special replacement space required for reversing the clamp plate on the left and right, front and rear parts of the reversing mechanism. can be performed at the same location by simply turning the clamp plate upside down around the axis of rotation, and moreover, the reversing operation can be performed continuously at the same position, simply and quickly.

Therefore, according to the present invention, it is possible to invert the paper in a narrow space, and it is easy to install a reversing device in the inspection line when inspecting the front and back sides of sheet-fed printed matter. Therefore, the inspection paper stack can be reliably and quickly turned over one by one without making the stack of paper irregular, improving the efficiency of the inspection process, and moreover, the paper can be reversed without malfunctions such as folded corners of paper 2 or wrong pages. be able to.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of the device of the present invention, and FIG. 2 is a front view of the same. 1,1/...clamp plate, 2...paper, 3,3/...
... Proa 1, 4, 4'... Press mechanism, 5, 54.
・Support frame, 5A...Rotating frame, 5B...
Manual: Handle, 6: Guide rod, 7: Rotating shaft,
8... Bearing, 9... Frame, 10... Stopper cam, 104... Recess, 11, 12... Signal cam,
13...Stopper lever, 14...Solenoid, 15
, 16...Micro switch, 17, 21, 2V...
・Limit switch, 18...Power switch, 19・
...Table, 20...Start switch.

Claims (1)

[Claims] 1 Clamp plate 1 consisting of an air blow table from which air flows out from a paper clamping surface whose paper contacting surface is flat.
, 1' are provided vertically and oppositely to each other, and these clamp plates 1,
Blower 3, 3' for pumping air to 1' is connected to opposite surfaces of clamp plates 1, 1', respectively, and clamp plates 1, 1' are connected to air presses 1, 1' to support frames 5, 5'. The support frames 5, 5' are installed along guide rods 6, 6' so that they can be raised and lowered by mechanisms 4, 4', and the support frames 5, 5' are fixed to both the upper and lower ends of the rotating frame 5A, and are attached to the center of the rotating frame 5A. The rotating shaft 7 is attached to the rotating shaft 7, and the rotating shaft 7 is
A stopper cam 10 with recesses 10' and 10' formed at stop positions separated by 10° is set, and a stopper rod 13 is provided opposite to this cam 10 so as to be always resiliently supported in the stopper locking direction, and Solenoid 14 for releasing the retention in the locking direction
Further, stopper release signal detection cams 11 and 12 are separately set on the rotating shaft 7, and a micro switch 15 is installed opposite to these stopper release signal detection cams 11 and 12.
, 16 are provided, and limit switches 17, 17, 21, 2 are provided which contact and separate in response to the lifting and lowering of the clamp plates 1, 1'.
1' is provided at a predetermined location, and a handle 5B is attached to the front surface of support frames 5, 5'.