JPH0445062A - Folding machine - Google Patents

Abstract

PURPOSE:To improve the workability at the time of cutting and size changing by installing a cutting means which cuts a web with size different from that being cut by a cutting drum and also installing a guide roller for conducting the web to this cutting means. CONSTITUTION:A web 6 subjected to a former fold with a former plate 1 passes through each interval among a lead roller 2, a perforator 3 and a nipping roller 5 and it is cut into the specified length in space between a cutting drum 7 and a folding drum 8. At time of a half cut, the web 6 is rolled on a range from a guide roller 4 being situated beneath the perforator 3 to a guide roller 11 being situated in the left and it is taken into a gap between nipping rollers 12. Then, it is cut between a cutting drum 14 and a receiving drum 15, but this cutting drum 14 is made to be the same outer diameter as the said cutting drum 7, while it has a pair of cutters so that the web is cut in half. Accordingly, when a cut size is changed, it can be done easily only using a wafer route for the guide roller 11, thus a working property is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a folding machine that can easily change the cutting specifications of signatures.

<Prior art> A paper roll printing press is equipped with a folding machine that cuts the dried and cooled web into predetermined lengths after printing, and folds the web in the width direction or length direction. ing.

For example, a printed web is first folded in half in the width direction by a former, passed through a lead roller and a nipping roller, and then cut to a predetermined size in the longitudinal direction by a cutting cylinder. Furthermore, the signature, which is a web passed from the cutting cylinder to the folding cylinder, is folded in parallel by the grip cylinder, then folded into a hem, etc., and is discharged onto a paper discharge conveyor via an impeller.

Here, when changing the folding machine described above to a half-cut specification that cuts an 432 needles 3
A cutting blade 35 is attached to a position on the outer periphery of the folding drum 32 that is 90 degrees out of phase with the position of a pair of cutting blades 34 installed adjacent to the folding drum 32 for cutting. With this cutting blade 35 and the normal cutting blade 34, signatures 38 cut to half the length of the normal specification are continuously produced.

<Problems to be Solved by the Invention> As shown in FIG. 2, when creating a half-cut specification signature, the web 31 is alternately cut by the cutting blade 34 and cutting blade 35 of the folding drum 32, The cut signature 38 is stabbed by the pricking needles 33 and 37 installed on the folding drum 32 and the cutting drum 36, respectively, and as the folding drum 32 and the cutting drum 36 rotate, the folding drum 32 and the cutting drum 36 are moved along the outer periphery of the folding drum 32 and the cutting drum 36. Alternately fold 3 signatures
8 will now be sent.

That is, the signature 38 sent to the folding cylinder 32 side passes through a gripper cylinder (not shown) and is ejected, and the signature 38 sent to the cutting @ 36 side is pierced by the needle 40 provided on the needle cylinder 39. The receiver is passed to the cylinder 39 and the paper is discharged. Therefore, in the half-cut specification, there are two routes for feeding the signatures 38, and handling such as stacking the signatures 38 becomes complicated.

In addition, when creating a signature with the normal specifications again, it is necessary to remove the cutting blade 35 of the folding drum 32, and also
It is necessary to change the protrusion timing of the needle 37 using a cam (not shown) in order to avoid forming an unnecessary hole in the needle f31 on the needle side 37 of the needle f31, which requires excessive effort when changing the signature specification. It also has drawbacks.

Means for Solving the Problems> A folding machine according to the present invention has a cutting cylinder that cuts a web flowing from a former plate into a predetermined size.
A cutting means is installed to cut the web into a size that is different from the size to be cut by the cutting cylinder, and a guide roller is installed between the former plate and the cutting cylinder to guide the web to the cutting means. It is characterized by this.

Function: The guide roller changes the path of the web from the former plate to the cutting cylinder.

The web flowing from the rerouted former board is
The sheet is sent to a cutting means, where it is cut into a size that is the same as the size cut by the cutting cylinder.

<Example> An example of the folding machine of the present invention is shown in FIG. 1, and this example will be described based on this figure.

As shown in FIG. 1, a pair of nipping rollers 5 are located directly below the former plate 1 to feed the web 6 to the cutting cylinder 7 side.
A pair of lead rollers 2 for guiding the web 6 are provided between the
A pair of perforators 3 are each rotatably attached. At the lower position of the nipping roller 5, there is a cutting It17 and a folding W/
48 are rotatably attached, and the web 6 is inserted between them.

Therefore, the web 6 that has entered between this time is cut between the cutting cylinder 7 and the folding cylinder 8, is stopped by a needle (not shown) of the folding wrench 1, and is sent to the gripping cylinder 9 located on the right side in the figure. , the gripper cylinder 9 will be used for parallel girder. After this,
The web, which has been processed into signatures, is discharged and accumulated outside the folding machine.

On the other hand, in the passage path of the web 6 between the perforator 3 and the nipping roller 5, a first roller 4 and this pair of guide rollers 4 guide the web 6 to a path different from the meridians described above. A guide roller 11 of Atsushi 2 that guides the web 6 is rotatably attached,
A cutting cylinder 14 for cutting the web 6 is installed below the guide roller 11 so as to be freely driven and rotatable. The cutters 11ii and 114 have the same outer diameter as the cutting cylinder 7, and a pair of cutting blades 14m are attached to the outer periphery of the cutter 14. Further, the other cutting blade 14m is arranged at a position on the cutting barrel 14, where the other cutting blade 14m is rotated by 180 degrees with respect to the negative cutting blade 14a.

A receiving cylinder 15 having the same outer diameter as the cutting cylinder 14 and driven and rotated in synchronization with the cutting cylinder 14 is mounted at a position facing the cutting cylinder 14 and the web 6 between them. A cutting blade on the external position corresponding to the cutting blade 14a of the body 14]
A section 15m is formed on the 4-black mark.

In addition, the cutting W414 and receiving cylinder 15, and the guide row U1
Between U; 1 and 1, a pair of lead in rows U] 2 is located, which apply a pressing force and make the pressing force adjustable by the ash ring 13, and lead in row U 12. Ugobu 6 sent from the 7-ohm board] is applied to the clamp to apply a predetermined tension to the urchin and pro. A high-speed belt 16a is located below the cutting cylinder 4 and the receiving cylinder 15, and rotates in a direction to draw in the I-Pro, which is fed from the cutting cylinder 4' in FIG. The high-speed belt 16a is guided by a plurality of roller guides 17 to form a feeding meridian, and the high-speed belt 16b, which clamps the web 6 between it and the high-speed belt 16a, is guided by a plurality of roller guides 17. Guide 17 guides you. and,
These belts 16a and 16b are each connected to a drive source (not shown), and the belts 16a and 16b are connected to a driving source (not shown), and the belts 16a and 16b are connected to a drive source (not shown), and the belts 16a and 16b are rotated at a speed faster than the speed at which the belt passes through the guide rollers 4, 11, lead-in ports to 12, etc. What-C? ::tsu1. I'm going to send a professional and...

That is, these lead-in rollers 12, the cut-off cylinder 1
4, catch cylinder 15, high speed heald i 6 a.

16b, etc., constitute the cutting means 22.

Furthermore, on the right side of Figure 1, there is a high speed bell h16a.
, 16b is attached to the sheet discharge device 23 for arranging the sheets in a staggered manner.

The paper ejection unit w23 includes a low-speed belt 21 that is driven and rotated at a speed lower than the feeding speed of the incoming signature, and a snapper that rotates and presses the rear part of the signature against the low-speed belt 21.
It is composed of a slow down pulley 19 that rotates and comes into contact with the signatures to primarily decelerate the signatures, and a braking roller 20 that ultimately decelerates the signatures. The sheets are arranged in a staggered manner (7) and then discharged from the folding machine.

Next, the operation of one embodiment of the folding machine of the present invention explained below will be explained.

When creating an analysis with normal specifications, the sea urchin that has been formed by the forming plate 1 passes between the lead roller 2, the perforation roller 3, the nipping roller 5, etc.
It is placed between the cutting cylinder 7 and the i-cylinder 8. Thereafter, the cut signatures are parallel-folded by the gripper cylinder 9, chopper-folded by the -f1 brim (not shown), and then discharged.

When creating a signature with half-cut specifications, the web 6 is wound from the first guide roller 4 located below the perforator 3 to the second guide roller 11 located on the left side in the figure. , and between the nipping rollers 12. In addition, when changing the passage path of the web 6 from the normal specification, the web 6 is cut between the perforator 4 and the bimbing roller 5 with a cutting blade (not shown), and then the web extending from the former plate 1 side is cut. 6, guide roller 11, lead-in roller 12! It is intended to lead to l. The web 6 introduced between the lead-in rollers 12 is
Cutting is performed between the cutting cylinder 14 and the receiving cylinder 15, but the cutting cylinder 1
4 has the same outer diameter as the cutting cylinder 7 and has a pair of cutting blades 14a, so it can be cut to half the length of the normal specification.
'The first thing to be judged. Therefore, the belts 16 a, 16 have half the length of the normal specifications, that is, half-cut specifications.
The paper ends up being caught between the paper sheets and the paper is ejected at high speed.

In this embodiment, the cutting means is the cutting cylinder 14 and the receiver FM.
15. Although the high-speed belt 16a, 1 (ib, etc.) was configured, the outer diameter of the cutting cylinder 14 may be changed or the cutting blade 1 may be changed.
By changing the number of 4m attachments, you can create signatures with different specifications. Further, the cutting means may be other known cutting device.

On the other hand, the paper ejecting device 23 may be any other well-known paper ejecting device.
stomach.

<Effects of the Invention> The above explanation 11 shows that according to the analysis WA of the present invention, the meridian of the ordinary two-piece meridian and the route disturbance that arises are renewed. Each time you change the cutting dimensions, fold the cutting blade and attach it or 1. Work such as removing it from the folding drum is no longer necessary, improving work efficiency. Furthermore, since there is no need to use a cutting cylinder and a folding cylinder to cut cutting specifications other than the normal specification 2, there is no need for two feeding routes for the cut folds, and the handling of the signatures becomes easy.

Furthermore, when cutting with a cutting method that does not use a needle, unnecessary holes are exposed in the signature.

It also has the advantage of increasing the printing area and improving the appearance.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of a folding machine representing one embodiment of the present invention;
The figure is a plan view showing cutting according to a conventional technique. In the drawing, 1 is the Nooma board, 4 and 11 are the G, F, Ti, and I.
6.3], 7 and 14 are cutting cylinders, 8 is folding cylinders,
22 is the cutting means 7.

Claims (1)

[Claims] In a folding machine having a cutting cylinder that cuts a web flowing from a former plate into a predetermined size, a cutting means for cutting the web into a size different from the size cut by the cutting cylinder is installed, and the former A folding machine characterized in that a guide roller for guiding the web to the cutting means is installed between the plate and the cutting cylinder.