JPH0215388B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for reprinting a daily calendar or a monthly calendar (hereinafter simply referred to as a flip calendar) using an offset printing machine.

[Conventional technology and its problems]

The offset printing machine for reprinting on a turning calendar will be explained with reference to FIG.
1 is a copying roller, 4 is a kneading roller, 5 is an ink transfer roller, and 6 and 7 are leveling rollers.

The ink on the ink transfer roller 5 is supplied to a flat plate 8 by an ink roller 10 supported by a frame 9 running on this flat plate, and the ink on the flat plate 8 is transferred to a bracket 11 and printed on paper on a table 12. .

In order to reprint a calendar using the above-mentioned printing machine, the calendars were placed one by one on a table, and the reprinted pieces of paper were reversed using a reversing lever.

By the way, placing each calendar for reprinting on an offset printing machine (printing table) is semi-manual and inefficient, and turning the reprinted sheets of paper using the reversing bar poses the risk of turning over two sheets. be.

[Means for solving problems]

In order to solve the above problems, the present invention includes a printing table, a belt conveyor that is attached to one side of the leading end of the table in the direction of movement of the printing machine and rotates toward the table, and a belt conveyor that rotates toward the top of the table, and a belt conveyor that rotates toward the top of the table. The belt conveyor consists of a flip-up calendar clamp attached to the upper side, and the horizontal part of the inclined lower end side faces the table at the transfer position to the printing table, and is movable up and down, and a downward-facing vacuum box is placed in the horizontal part. The belt of the belt conveyor is porous, and its lower running band is turned in the turning direction of the calendar, and the turning calendar clamp has a main shaft that faces in the direction of extension of the tip of the printing table, and rotates around this main shaft. It consists of calendar clamping arms that are symmetrically installed on the circumferential surface of a boss that is freely attached and extend in the radial direction. This is a reprinting device for turning calendars for printing presses.

[Effect]

One calendar holding arm of the turning calendar holding tool is used to hold a large number of turning calendars near the binding section, and with the free side hanging down, it is rotated to the tip of the printing table and fixed to the end face to release the calendars. Turn the side over onto the table, rotate the belt conveyor onto the printing table, and perform additional printing with the horizontal part of the lower inclined end of the belt conveyor positioned on the part of the calendar on the table that is not related to additional printing. When the printing press retreats after additional printing, the belt conveyor descends and is driven, and at the same time the vacuum device is activated, and by driving the conveyor while slightly raising the belt conveyor, the belt only sucks up the additionally printed pieces of paper. When the paper is continuously sent from the tip of the table to the outside of the table and away from the vacuum box, the suction force disappears, the paper strip separates from the belt and falls (hangs down), and the drive of the vacuum and belt stops.

While the calendar on one of the calendar holding arms is being reprinted, the other holding arm protrudes horizontally to the side of the printing table, so that the turning calendar is held on this holding arm.

〔Example〕

In Figures 1 and 2, 13 is the print table 1
This is a flip-up calendar on the second page, in which a large number of books are held by a clamping tool 14, and only the parts to be reprinted are on the table, and the reprinted pieces of paper are made to hang upside down.

The calendar clamp holder 14 is attached to the top of one side of the tip of the printing table 12 by a shaft 16, with its main shaft 15 facing in the direction of extension of the table's end, and as shown in FIG. 4, so as to be able to swing upward. A boss 17 is rotatably attached, and calendar holding arms 18a and 18b are provided at symmetrical positions around the boss 17 and extend in the radial direction.

The calendar holding arms 18a and 18b are composed of a fixed arm 19 and a support arm 2 superimposed on this arm.
0, and both ends of the support arm 20 can be fastened to the fixed arm with fastening members 21.

The flip calendar 13 holds multiple books in its binding section 2.
With the second portion being held by the calendar holding arm 18a located on the side of the printing table,
It is rotated 180 degrees and fixed to the front end face of the printing table 12 like the calendar holding arm 18b with the fastening member 23, and the free side of the turning calendar 13 is placed on the printing table.

Reference numeral 24 denotes a belt conveyor for reversing only the reprinted pieces of paper when the frame 9 of the printing press moves forward and reprints are made on the turning calendar 13. is attached to the opposite side and positioned on the printing table as shown in Fig. 1, but is rotated as shown in Fig. 2 to rotate the calendar clamp holder 14 and position the free side of the calendar 13 on the table. It is made possible to do so.

The belt conveyor 24 has a support shaft 2 that stands along the side surface of the printing table 12 and is rotatably supported.
It is assembled into a horizontal frame 27 whose one end is fixed to a substrate 26 fixed to the upper side of the printing table 5, and as shown in an enlarged view in FIG. A vacuum box 28 which is horizontal and whose lower surface is open is arranged in the horizontal part, and holes 30 are provided along the entire length of the belt 29 of the belt conveyor.
31 is a baquium horse.

As shown in FIG.
The shaft 35 rotates a shaft 38 via meshing gears 36 and 37, and this shaft 38 rotates a V-belt 39.
At the same time, the lower running band of the belt 29 in the belt conveyor 24 rotates in the turning direction of the turning calendar. Note that the drive shaft 32 of the belt conveyor has a coaxial bearing on the shaft 35.

To reprint on a flip calendar using this reprinting device, as shown in FIG.
Calendar holding arm 18a located on the side of 2
A large number of flip calendars 13, their binding part 2
The calendar holding arm 18b is fixed rotatably to the tip end face of the printing table 12 with the second portion thereof being held and the free end hanging down, and the free end of the held calendar is turned over onto the printing table.

In this state, the belt conveyor 24 is moved around the support shaft 25 that supports the substrate 26 to the calendar portion on the printing table and is locked therein. It is also assumed that the left and right belts 29 of the belt conveyor are set in advance to be located in areas that are not related to additional printing of the calendar, and that the belts 29 on the left and right sides of the belt conveyor are positioned in areas that are not related to additional printing of the calendar. The vacuum is activated, and the lower end of the support shaft 25, which has the substrate 26 on the upper end, is in contact with the cam 40, and the drive shaft of this cam rotates, causing the belt conveyor to rise slightly and start driving. The paper pieces that have been printed and reprinted are sucked by the vacuum box and moved to the tip of the table. When they move to the tip of the table, they are removed from the vacuum suction and are reversed and hung outside the table, and are also used to drive the belt conveyor and the vacuum box. operation stops.

While additional printing continues, the flip calendar 13 is clamped to the empty calendar clamp arm of the calendar clamp holder 14, which is rotated to the side of the printing table 12.

〔effect〕

(1) Since the flip calendar can be set on the printing table with multiple books held in the holding tool, there is no need to set the calendar one book at a time as in the past, and the efficiency of reprinting is significantly improved.

(2) Reversing the reprinted paper strips of the flipping calendar is performed by rotating in the flipping direction while being sucked by the vacuum box with an open bottom surface on the horizontal section of the lower inclined side of the belt conveyor. There is no risk of turning over two sheets.

(3) Supplying the flip calendar to the printing table is as follows:
Since the calendar clamping tool consists of radially symmetrical clamping arms attached to the upper side of the tip of the printing table, the calendar clamped by one clamping arm can be placed on the printing table and the calendar can be placed on the printing table during reprinting. The calendar to be reprinted can be held on the holding arm, making the printing process smoother.

[Brief explanation of drawings]

FIG. 1 is an explanatory side view of an offset printing machine for reprinting a flip calendar according to the present invention, FIG. 2 is an enlarged perspective view of the main parts of the same, and FIG. FIG. 4 is an enlarged perspective view of another important part, and FIG. 5 is an enlarged front view of still another important part. 12...Printing table, 13...Turning calendar, 14...Calendar holding tool, 15...Main shaft, 17...Boss, 18a, 18b...Calendar holding arm, 22...Calendar binding section, 2
4... Belt conveyor, 25... Support shaft, 28...
Bakyum Box.

Claims (1)

[Claims] 1 Consists of a printing table, a belt conveyor that is attached to one side of the front end of the table in the direction of travel of the printing machine and rotates toward the table, and a turning calendar clamp that is attached to the upper part of the other end of the table. , the belt conveyor has a horizontal part on the lower end of the slope facing the table at the moving position onto the table and can be freely adjusted up and down, and has a vacuum box facing downward in the horizontal part, and the belt of the belt conveyor is porous. The lower running band of the toshiro is turned over and rotated in the turning direction of the calendar, and the turning calendar holding tool has a main shaft facing in the direction in which the tip of the table extends, and a boss rotatably attached to the main shaft. A reprinting device for a turning calendar for an offset printing press, which is composed of calendar holding arms extending in the radial direction at symmetrical positions provided, and in which both calendar holding arms can be alternately fixed at their tip ends to the tip end face of a printing table. .