JPS61255859A - Additional-printing apparatus of block calendar for offset printing press - Google Patents

Abstract

PURPOSE:To eliminate complicated process in setting block calendars to a table one at a time and to enhance additional-printing efficiency, by making it possible to alternately fix the leading end sides of both calendar grasping arms to the end surface of the leading end of a printing table. CONSTITUTION:In performing additional-printing to a calendar, the part near to the multiple-copy stitching part 22 of a block calendar 13 is grasped by calendar grasping arms 18a positioned at the lateral side of a printing table 12 and revolved to be fixed to the end surface of the leading end of the printing table 12 by a calendar grasping arm 18b in such a state that the free end side of the calendar 13 was suspended and the free end of the grasped calendar is reversed onto the printing table 12. Belt conveyor 24 is moved to the calendar part on the printing table 12 by rotating the same around the support shaft 25 supporting a base plate 26 to be locked to the printing table 12. A printing press advances to apply additional-printing to the calendar and, simultaneously with the retraction of the printing press, the vacuum of the belt conveyor is operated and a paper piece having received additional-printing is moved to the leading end side of the table while being sucked to a vacuum box part. During additional-printing, the block calendar 13 is grasped by the empty calendar grasping arms revolved to the lateral side of the printing table 12.

Description

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

[Conventional technology and its problems]

An offset printing machine for reprinting a turning calendar will be explained with reference to FIG. 1, which is an omitted explanatory diagram. 1 is ink, 2 is an ink source roller, 3 is a copying roller, 4 is a kneading roller, and 5 is an ink transfer roller. The roller 6.7 is a leveling roller.

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 the bracket 11 and onto the paper on the table 12. Print.

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 bar.

By the way, the operation of placing reprint calendars one by one on an offset printing machine (printing table) is semi-manual and inefficient, and there is a risk of turning over double sheets of paper using the reversing bar. 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; The belt conveyor consists of a turning calendar clamp attached to the upper part of the other 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 installed 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 attached to the circumferential surface of a freely attached boss 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 Be/L/l-conveyor onto the printing table, and position the inclined lower end book flat part of the belt conveyor on the part of the calendar on the table that is not related to reprinting. After reprinting, when the printing press retreats, the belt conveyor is lowered and driven, the vacuum device is activated at the same time, and the belt conveyor is raised slightly while driving the conveyor. The belt sucks only the scraped paper pieces and sends them from the tip of the table to the outside of the table and when they leave the vacuum box, the suction force disappears, the paper pieces separate from the belt and fall (hang down), and the vacuum and belt drive stop.

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 FIGS. 1 and 2, reference numeral 13 denotes a flip calendar on the printing table 12. In this calendar, a large number of books are held by the clamping tool 14, and only the portion to be reprinted is on the table, and the calendar is not reprinted. This is done so that the piece of paper is turned upside down and hangs down.

The calendar clamp holder 14 is placed at the top of one side of the tip of the printing table 12, with its main shaft 15 facing in the direction in which the tip of the table extends.
As shown in FIG. 4, it is mounted on a shaft 16 so as to be able to swing upwards, a boss 17 is rotatably mounted on the main shaft 15, and calendar clamps that extend in the radial direction at symmetrical positions are attached to the local portions of the boss 17. Arms 18a and 18b are provided.

Calendar clamping arms 18a and 18b are fixed arms 19
It consists of an additional arm 20 that can be stacked on this arm,
Both ends of the support arm 20 can be fastened to the fixed arm with fastening members 21.

The turning calendar 13 rotates 1800 times with the portion of the multiple books near the binding section 22 being held by the calendar holding arm 18a located on the side of the printing table, and then moving the calendar holding arm 18b to the tip of the printing table 12. It is a belt conveyor that is fixed to the end face with a fastening member 23 and that only reverses the reprinted paper pieces when the free side of the turning calendar 13 is reprinted on the printing tape. It is attached to the opposite side of the calendar clamp holder 14 and is located on the printing table as shown in FIG. 1, but it rotates as shown in FIG.
4 and the operation of positioning the free side of the calendar 13 on the table.

The belt conveyor 24 is built into a horizontal frame 27 which has one end fixed to a base plate 26 which is fixed to the upper side of a support shaft 25 which stands along the side surface of the printing table 12 and is rotatably supported. As shown in the enlarged view, the lower inclined side rests on the printing table 12, and the part that rests on the table is horizontal, and a vacuum box 28 with an open bottom is disposed in the horizontal part, and a belt conveyor The belt 29 is provided with holes 30 along its entire length. 31 is a vacuum hose.

The drive shaft 32 of the belt conveyor is, as shown in FIG.
The motor 33 rotates the shaft 35 via the V-belt 34, and the shaft 3
5 rotates the shaft 38 through meshing gears 36 and 37,
The shaft 38 rotates via a V-belt 39, and the lower running band of the belt 29 on 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.

In order to reprint a flip calendar using this reprinting device, as shown in FIG. The calender is gripped and the free end thereof is hung down, and the calender is rotatably fixed to the front end face of the printing table 12 like the calendar gripping arm 18b, 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 a support shaft 25 that supports the substrate 26 to a portion of the calendar 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. −? (7) Ha+! - In the Muka actuation system and the belt conveyor, the lower end of the support shaft 25, which has the substrate 26 on the upper end, contacts the cam 40, and the drive shaft of this cam rotates, causing the belt conveyor to rise slightly and start driving. The reprinted pieces of paper are sucked up by the vacuum box.
It is moved to the tip side of the table, and when it moves to the tip of the table, it is removed from the vacuum suction and reversed and hangs outside the table, and the drive of the belt conveyor and the operation of the vacuum stop. □Also, while additional printing continues, the turning 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 clamping tool, it is possible
There is no need to worry about setting books on a table, 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 a 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 the sheet turning over.

(3) Since the turning calendar is supplied to the printing table by a calendar holding device consisting of holding arms arranged in radial directions at symmetrical positions and attached to the upper side of the tip of the printing table, the calendar held on one holding arm is printed. The calendar to be reprinted can be held on the other holding arm during reprinting when placed on the table, 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. Figure 4 is an enlarged perspective view of the main part of the site, and Figure 5 is an enlarged front view of another main part. 12...Printing table, 13...Turning calendar, 14...Calendar clamp holder, 15...Main shaft, 17
...Boss, 18a, 18b...Calendar holding arm, 22...Calendar binding part, 24...Belt conveyor, 25...Spin shaft, 28...Vacuum box 0 Patent applicant New Japan Calendar Co., Ltd. Agent Kama 1) Bun 2

Claims (1)

[Claims] It consists of a printing table, a belt conveyor that is attached to one side of the leading end of the table in the direction of travel of the printing machine and rotates toward the table, and a turning calendar clamp holder that is attached to the upper part of the other leading 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 is adjustable up and down, and has a vacuum box facing downward in the horizontal part,
The belt of the belt conveyor is porous and rotates in the direction of turning the calendar by turning its lower running band, and the turning calendar clamp holder is rotatably attached to the main shaft facing the extension direction of the tip of the table. An offset printing machine consisting of calendar clamping arms extending in the radial direction at symmetrical positions provided on the peripheral surface of a boss, in which both calendar clamping arms can be alternately fixed at their leading ends to the front end face of a printing table. Reprinting device for flip-up calendars.