JPS5820604Y2 - Sheet-fed printing machine paper receiver - Google Patents

Description

[Detailed explanation of the invention] When discharging printed paper from a sheet-fed printing machine, etc., if a large amount of paper is stacked, there is a risk of ink set-off due to the paper's own weight. By inserting plates and spacers for each stacking height, printing paper is divided into sections, and boarding is performed to reduce the weight of the stacked paper at the bottom.

In this board removal work, there are two ways to insert a board between the printed sheets, etc. that are continuously delivered one after another: to directly insert the board in a timely manner while lowering the paper delivery platform, and to prevent the paper from falling. There is a method in which the paper that is ejected is temporarily held by a paper receiving device, and the board is inserted in the meantime.

However, the method of directly inserting the board without using a temporary paper receiving device requires timing as the speed of the machine increases.
＜, becomes difficult.

As for the temporary paper tray, conventional devices have several rod-shaped paper trays that are about the same length as the paper into which the device is inserted, and models that suck the front and back of the paper. Inserting the device by hand is difficult to operate, there is a risk of the rod getting caught in the paper conveyance chain, and when the device is removed, the rod may rub against the printed surface or the back of the print, causing dirt. There is.

In addition, with a device that only vacuums the front and back of the paper, as the size of the paper increases, the center of the paper held becomes thicker (
It becomes loose and cannot support multiple sheets of paper, and the sheets are not aligned properly at the paper output section.

The present invention provides a device that eliminates the drawbacks of conventional devices.

In a temporary paper receiving device for sheet-fed printing machine paper discharge section, a paper receiving arm 1 equipped with a suction pipe 4 has a suction port 2 that sucks printed paper by suction operation from the pipe 4, and the suction port. A printed paper end gripper 5 provided at the rear, a piston chamber 9 and a piston 10 communicating with the suction port, and a roller 11 at the rear end of the piston.
The piston 1 includes a guide piece 12 connected and supported between the pistons 11 and 11.
The parallel link arm 7 is provided with the gripping claw 5 at its tip, which reciprocates through the parallel link arm 6.6 by reciprocating motion of 0.0, and the piston chamber 9 simultaneously attracts the printing paper to the suction port 2. The generated vacuum pressure pulls the piston 10 against the spring 8, and the gripping claw 5 at the tip of the parallel link arm grips the end of the printed paper, and when the suction of the piping 4 is stopped, the printed paper is released, and the paper is released in front of the paper discharge section. A sheet-fed printing machine characterized in that a mechanism for advancing and retracting the paper receiving arm 1 using an air cylinder 15, 16 is provided at the section 23 and the rear end 24, and a mechanism for raising and lowering the arm 1 at the front section 23 of the paper discharge section. It is a paper receiving device, and as a temporary paper receiving device, it is very easy to operate, inexpensive, and easily installed in a conventional printing press.

Next, the device of the present invention will be explained according to the drawings. The suction port 2 in the arm body 1 shown in FIG. 1 is attached by a screw 3 having a hole in the center.

When the pipe 4 is in the suction state, when the paper 25 comes into contact with the arm body 1, the paper is attracted by the suction port 2, thereby creating a vacuum pressure in the piston chamber 9, and the piston 10 is pushed forward by the spring 8.

At this time, the roller 11 attached to the piston 10 moves into the guide piece 1.
By pressing 2, the claw 5 is pressed against the arm 1 via the parallel link arms 6 and 7, and the end of the paper placed on the arm is instantly caught in the mouth.

Also, the claw 5 is cut by the first spring 8 which cuts the vacuum from the pipe 4.
opens.

The arm 1 is attached to a mounting rod 14, and the amount of claw opening is adjusted by a claw opening stopper screw 13 attached to the mounting rod 14.

FIG. 4 is an explanatory view when the device of the present invention is actually attached to the paper discharge section of the printing machine, and the paper is transported by the paper transporting change resoper 19 while contacting the suction brake wheel 20.
Several paper receiving arms 1 are attached to the front and rear of the paper discharge section depending on the paper size, and are advanced by air cylinders 15 and 16 from the front paper alignment guide 17 and the rear paper alignment guide 18 to temporarily receive the paper.

When arm 1 is not in use, the iron arm is air cylinder 15,
16, the front paper alignment guide 17 and rear paper alignment guide 18 are lowered to the rear, but the arm 1 on the front side of paper ejection is moved by the cam 22 to a position where the arm 1 does not get in the way when removing printed paper. It is designed to go downwards.

By using the device of the present invention, the paper is attracted by the suction port 2, and at the same time the edge of the paper is held in the grip by the claw 5, thereby increasing the holding force (and 10% before and after the gripping part is out of the printing area of the paper). Because it is located in the margin position, there is no possibility of rubbing the printed surface and causing stains.

Furthermore, compared to the conventional method, the length of the paper receiving arm 1 is shortened and the stroke amount of the iron arm 1 is reduced, thereby making it possible to take in and out the paper receiving arm using the air cylinders 15 and 16. , push button operation becomes possible, etc.
This greatly facilitates the operation of temporarily receiving paper such as printed paper.

[Brief explanation of the drawing]

FIG. 1 is a side view of the device of the present invention when the claw is in operation, and FIG. 2 is a side view of the device when the claw is open. FIG. 3 is a plan view of the device of the present invention, and FIG. 4 is an explanatory diagram of the device of the present invention attached to the paper discharge section of a printing machine. 1...paper receiving arm, 2...suction mouth, 3...
...Suction thread part, 4...Piping, 5...
・Claw, 6...Parallel link arm, 7...
...Parallel link arm, 8-...Spring, 9...
... Piston chamber, 10... Piston, 11.
...Guide piece roller, 12...Guide piece,
13... Jaw opening limit stomper screw, 14...
...Paper receiving arm mounting rod, 15゜16...Air cylinder, 17...Front paper alignment guide, 18
... Rear paper alignment guide, 19 ... Chain rimper for paper conveyance, 20 ... Suction brake wheel, 21 ... Guide for board insertion, 22.・・・・・・
・Paper receiver arm lifting mechanism, 23...Front part of paper ejection section, 24
...Rear of paper ejection section, 25 ...Printing paper, 2
6...The divisions are printed paper 27...Rear paper receiver arm operating direction, 28...Front paper receiver arm operating direction.

Claims (1)

[Scope of utility model registration request] In a temporary paper receiving device for sheet-fed printing machine paper discharge section, a paper receiving arm 1 equipped with a suction pipe 4 has a suction port 2 that sucks printed paper by suction operation from the pipe 4, and the suction port. A printed paper end gripper 5 provided at the rear, a piston chamber 9 and a piston 10 communicating with the suction port, and a roller 11 at the rear end of the piston.
The piston 1 includes a guide piece 12 connected and supported between the pistons 11 and 11.
The parallel link arm 7 is provided with the gripping claw 5 at its tip, which reciprocates through the parallel link arm 6.6 by reciprocating motion of 0.0, and the piston chamber 9 simultaneously attracts the printing paper to the suction port 2. The piston 10 is pulled against the spring 8 by the vacuum pressure generated in the
is a mechanism that picks up the edge of the printed paper, releases the printed paper by stopping the suction of the piping 4, and moves the paper receiving arm 1 forward and backward at the front 23 and rear end 24 of the paper discharge section using air cylinders 15 and 16. A paper receiving device for a sheet-fed printing machine, characterized in that a mechanism for raising and lowering the arm 1 is provided in the front part 23 of the paper discharge section.