JPH0450278Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a paper threading device for a newspaper rotary press.

[Conventional technology]

Conventional paper threading devices for newspaper rotary presses are constructed by laying a flat belt in a loop shape along the most frequently used paper threading path (for example, for monochrome printing). The leading end of printing paper wound on a roll installed in the paper feed section is inserted into the slit section, and the paper is threaded by rotating the flat belt using a guide roller driven by a small motor or rotary press. The printing paper was passed through to a predetermined part of the path.

[Problem that the invention attempts to solve]

By the way, the paper threading path needs to be changed to the optimal path in response to changes in printing methods such as changing from monochrome printing to multicolor printing, changes in set pages, etc., but in the above-mentioned conventional technology, Only one paper threading route can be set for each paper feed section and one printing section, so when changing the paper threading route, it is necessary to thread the paper manually, which takes a lot of time and effort. It was necessary.

The present invention has been developed with the above-mentioned considerations in mind, and its purpose is to be able to freely set multiple paper threading routes and to easily change the paper threading route. An object of the present invention is to provide a paper threading device for a newspaper rotary press.

[Means for solving problems]

In order to achieve the above-mentioned object, the paper threading device for a newspaper rotary press according to the present invention is provided with a branch part along a plurality of paper threading paths assumed in advance, and has a crack in the longitudinal direction of the side. A continuous pipe-shaped guide rail is laid, and a driving body is provided in notches formed at appropriate intervals in the guide rail, and the driving body is driven by the driving body to freely meander within the guide rail. , and a running body whose total length is slightly longer than the distance between the longest notches, and a paper connection adapter connected to the leading end of the roll of printing paper installed in the paper feed section. A removably holding clip is provided on the traveling body.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Fig. 5 shows an example of a paper passing path of a printing device to which the present invention is applied. A roll-shaped web 3... is mounted. 4 is a printing machine provided in the printing section. The thick solid line L, the thick dashed line M, and the thick dotted line N each indicate the paper threading path in the printing press 4. More specifically, the thick solid line L indicates the path common to monochrome printing and multicolor printing, and the thick dashed line M indicates the paper threading path in the printing press 4. M indicates a route for only monochrome printing, and a thick dotted line N indicates a route for only multicolor printing. still,
5... are guide rollers provided in the paper threading paths L, M, and N, respectively.

Next, the configuration of the paper threading device according to the present invention will be explained based on FIGS. 1 to 4.

Figure 1 shows the main parts of the paper threading device. As shown in Fig. 2, the pipe is made of a pipe with a C-shaped cross section (for example, a pipe with appropriate rigidity such as a conduit pipe) with a crack S in the longitudinal direction of the side, and the internal space A is A traveling body 16, which will be described later, is designed to be able to meander freely. Then, at positions rotated counterclockwise and clockwise by 90 degrees from the position of the crack S of the pipe-shaped guide rails 6, 7, 8, in other words, on both the upper and lower sides of the guide rails 6, 7, 8, appropriate A plurality of notches 9 are formed at intervals (for example, 3 m) (the notches on the upper surface side and the lower surface side are represented by 9a, 9b, . . .).

10... are drive bodies provided in the notches 9..., respectively, and as shown in FIG. 3, each drive body 10...
... are a pair of upper and lower wheels 10a, 10, respectively.
The wheels 10a and 10b are provided at appropriate intervals so as to face the upper notch hole 9a and the lower notch hole 9b, respectively, and the upper wheel 10a is rotated in either forward or reverse direction by a motor 10c. The lower wheel 10b is formed as a driven wheel that is always urged upward by a spring _10b2 so that the lower wheel _10b can move in the vertical direction. There is.

Reference numeral 11 denotes a branch section provided between the guide rails 6 and 7, in which a switching member 14 to which the two branch guide rails 12 and 13 are fixed vertically is moved up and down by a cylinder 15, and the switching member 14 is moved up and down with respect to the guide rail 6. Selectively connect either guide rail 7 or 8,
This allows the paper threading path to be set in accordance with monochrome printing or multicolor printing.

Reference numeral 16 denotes a spindle-shaped running body that meanders freely within the internal space A of the guide rails 6, 7, and 8. Its main body 16a is formed in a cylindrical or rod shape, and is made of synthetic resin or leather. At both ends of 16a are caps 16b, 16 made of a slightly hard material.
b is attached, and the total length of the traveling body 16 is slightly longer than the interval between the notches 9....

Reference numeral 17 denotes a clip attached to the tip of a plate-shaped attachment part 18 made of synthetic resin that protrudes horizontally from the side of the traveling body 16, and as shown in FIGS. A connecting portion 21 of a paper connecting adapter 20 made of synthetic resin, for example, attached to the tip portion 3A with an adhesive member 19 such as double-sided tape.
(See FIG. 4) is configured so that it can be detachably held.

In addition, in FIG. 2, 22 indicates the guide rail 6,
This is a rail holding member that holds and fixes 7 and 8, and is provided along the paper threading path at an appropriate interval.

Next, the operation of the paper threading device having the above configuration will be explained. Now, if we are going to print in monochrome,
First, the cylinder 15 is operated at the branching portion 11 to connect the rail 7 to the rail 6 via the branching rail 12, as shown in FIG.

Then, the leading end 3A of the new paper roll 3 is cut off diagonally, the paper connecting adapter 20 is connected to this leading end 3A with the adhesive member 19, and the connecting part 21 of the paper connecting adapter 20 is inserted into the guide rail 6. The leading end 3A of the web 3 is held by the clip 17 of the traveling body 16 on the traveling body 1.
Fixed at 6.

When all the drive wheels 10a are rotated in the direction of arrow P shown in FIG. 2 with the traveling body 16 disposed within the guide rail 6, the traveling body 16 travels in the direction of arrow X in the same figure, and the printing section Head to. In this case, since the total length of the traveling body 16 is made slightly longer than the interval between the notches 9, the traveling body 16 is always held between the driving wheel 10a and the driven wheel 10b, and the traveling body 16 is always held between the driving wheel 10a and the driven wheel 10b, and the driving wheel 10a moves the traveling body 16 in a predetermined direction. Since it can receive the drive, the traveling body 16 can continue to travel in a predetermined manner. This running body 16
The web 3 is rewound as it runs, and when its leading edge 3A passes through the printing press 4 (see Fig. 5) and reaches the folding machine 23 (see Fig. 5), a limit switch (not shown) is activated. , the traveling body 16 automatically stops at a predetermined position.

After removing the connecting portion 21 from the clip 17 of the traveling body 16 that has stopped in this way and removing the paper connecting adapter 20 from the traveling body 16, and further removing the paper connecting adapter 20 from the leading end 3A of the web 3, the leading end 3A at a predetermined position on the folding machine 23.

Incidentally, if the rotation direction of the motors 10c is reversed, the traveling body 16 travels in the opposite direction to the above-mentioned direction and heads toward the origin position.

When performing multicolor printing, the cylinder 15 is operated at the branching section 11 so that the branching rail 13
, connect the rail 8 to the rail 6 via this branch rail 13, and perform the same operation as described above.

[Effect of idea]

As explained above, the paper threading device for a newspaper rotary press according to the present invention has a pipe-like shape that is provided with a branch part and has a crack in the longitudinal direction of the side along a plurality of paper threading paths assumed in advance. A guide rail is laid, and a driving body is provided in a notch formed at an appropriate interval in this guide rail, and the driving body is driven by the driving body to meander freely within the guide rail. A running body whose overall length is slightly longer than the interval between the notches is provided, and a clip is further provided to detachably hold a paper connection adapter connected to a leading end of a roll of printing paper installed in a paper feed section. are provided on the traveling body, a plurality of paper threading routes can be freely set, and the paper threading route can be easily changed. The paper threading device according to the present invention has advantages over conventional paper threading devices in that it has a simpler structure, requires almost no maintenance, and is inexpensive.

[Brief explanation of drawings]

1 to 5 show an embodiment of the present invention,
FIG. 1 is a perspective view showing the main parts of the paper threading device, FIG. 2 is a perspective view showing an example of a guide rail and a traveling body,
Fig. 3 is a sectional view showing the positional relationship between the guide rail, the driving body, and the traveling body; Fig. 4 is a perspective view showing an example of the clip and paper connection adapter; Fig. 5 is an example of the paper threading path to which the present invention is applied. FIG. 3...Printing paper, 3A...Tip, 6, 7, 8
... Guide rail, S ... Crack, 9 ... Notch, 10 ... Drive body, 11 ... Branch, 16 ...
Running body, 17... Clip, 20... Paper connection adapter.

Claims (1)

[Scope of utility model registration request] Along the multiple paper threading paths assumed in advance,
A pipe-shaped continuous guide rail having a branch part and a crack in the longitudinal direction of the side is laid, and a driving body is provided in the notch part formed at an appropriate interval in this guide rail, and this driving a running body that is driven by a body and runs in a meandering manner within the guide rail, and whose overall length is slightly longer than the distance between the longest notches; 1. A paper threading device for a newspaper rotary press, characterized in that the running body is provided with a clip that detachably holds a paper connection adapter connected to a leading end of a shaped printing paper.