JPS6274860A - Running printed-paper transfer device for folding machine of rotary press - Google Patents

Abstract

PURPOSE:To make the transferring between both folding machine systems as well as to improve operation efficiency, by installing a step differential part on an outer circumferential surface of a transfer roller, and making even a difference in paper thickness in the direction of the breadth of running printed paper, while setting up the said roller at the upstream side of a folding barrel. CONSTITUTION:A step differential part, which almost equalizes each radius of transfer rollers 14, 15, 14' and 15' inclusive of a one side edge side folding part where a sheet of running printed paper 1 is thick to a radius of the said transfer roller inclusive of another side edge being thinner in paper thickness than the said folding part, is installed on an outer circumferential surface of the transfer roller. With this constitution, a difference in paper thickness in the direction of the breadth of the running printed paper 1 is made even by this step differential part, coming to being almost uniform, so that rumpling, inclination, meandering, etc., are not produced in the running printed paper 1, though the operation speed of a rotary press is not slowed down as a whole. And that this transfer roller is set up at the upstream side of a folding barrel 10 so as to make winding angles alpha, beta, alpha', beta' of the running printed paper 1 to the said transfer roller smaller. With this constitution, transferring from a folding machine system on one side to a folding machine system on the other is smoothly performed, thus operation efficiency is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a printed running paper transfer device for a folding machine of a rotary printing press.

(Prior art) The printed running paper transfer device for the folding machine of a conventional rotary printing machine is
To explain with a diagram, the printed running paper transfer device for a single diffraction machine consists of an A series on the right side and a B series on the left side. Both the A series and the B series.

Multiple sheets of stacked printed running paper (continuous paper> (01)
Triangular plate (02), guide roller (03) (03”), and printed running paper (01) to fold the paper in half lengthwise.
1st stage nipping roller (04) (04°) and 2nd stage nipping roller (06) (06'), which apply appropriate tension to the paper and feed it downward, and the printed running paper (01) to a predetermined length L). A saw cylinder (08) that cuts into unit paper bundles (07)
The folding cylinder (010) folds the unit paper bundle (07) into two in a direction orthogonal to the length direction thereof using a folding blade (09) while rotating synchronously with respect to the saw cylinder (08). It is constituted by an impeller (012) that receives a unit paper bundle (07) folded in half and sends it out to a conveyor (011) in an aligned state. Also, (013) is the printed running paper (01
) from A series to B series, or from B series to A series,
The printed running paper transfer device for the folding machine (013) is transferred to the transfer roller (013) on the stationary side.
14) Consists of (016), a swinging arm (01B) attached to a bearing box (017), and a movable transfer roller (015) attached to the tip of the swinging arm (018). , when either the A series or the day series is out of order, the printed running paper (01) is transferred from the failed series to the non-faulty series, or the day series is transferred inside the unit paper bundle (07) of the A series. Stack unit paper bundles (07).

On the contrary, the A-series unit sheet bundle (07) is stacked inside the daily-series unit sheet bundle (07). At this time, it would be a problem if the printing parts of the two stacked unit paper bundles (07) were not in phase.

It is necessary to be able to adjust the length of the paper in the transfer section. The length of paper is the length from the first stage nipping roller (04') of the A series to the second stage nipping roller (06) of the daily series, or from the first stage nipping roller (04) of the daily series to the second stage nipping roller (04) of the A series. The second stage nipping roller (
Adjustment of the nine sheets, which refers to the length up to 06°), is performed by swinging the swinging arm (018) that supports the transfer roller (015) on the movable side.

(Problems to be Solved by the Invention) In the conventional printed running paper transfer device for the folding machine of a rotary printing press shown in FIG. 4, the transfer roller (01
4) The apparent thickness Ll) near the two-digit part (019) of the printed running paper (01) wrapped around (015) and (016) is larger than the average thickness to), and the printed running paper (01) is larger than the average thickness to). The tension fluctuates greatly between the inside and outside of the running paper (01) in the width direction, but the effect is on the transfer roller (014) (01
5) The smaller the diameter of (016), the more the angle (α)
The larger (β)(γ) (see FIG. 1 for (α)(β)) becomes more pronounced, causing wrinkles, deviation, and meandering of the paper, making normal operation impossible. This inconvenience increases as the running speed of one sheet increases, so it is necessary to lower the operating speed of the entire one-wheel printing press, resulting in a decrease in work efficiency.

(Means for Solving the Problems) The present invention addresses the above-mentioned problems, and the printed running paper, which is folded along the running direction to form a fold on one side edge, is passed from one folding machine system. In a printed running paper transfer device for a folding machine of a rotary printing press that transfers the printed running paper to another folding machine system via a transfer roll, the radius of the transfer roll including the one edge side fold portion where the printed running paper is thick and A stepped portion is provided on the outer peripheral surface of the transfer roller that makes the radius of the transfer roller including the other side edge where the paper thickness is thinner than the folded portion substantially equal, and the wrapping angle of the printed running paper with respect to the transfer roller is small. This relates to a printed running paper transfer device for a folding machine of a rotary printing press, which is characterized in that the same transfer roller is arranged upstream of the folding cylinder, and its purpose is to control the entire operation of a single rotary printing press. 8 paper wrinkles and deviations without the need to reduce speed.

An object of the present invention is to provide an improved printed running paper transfer device for a folding machine of a rotary printing press, which can prevent the occurrence of meandering and improve work efficiency.

(Function) The printed running paper transfer device for a folding machine of a rotary printing press according to the present invention is configured as described above, and the work efficiency is improved. That is, when a printed running paper with a folded portion formed on the - side edge side is transferred from one folding machine system to the other folding machine system, the printed running paper comes into contact with the transfer roll. At this time, if the radius of the transfer roll is the same throughout the axial direction, the tension on the printed running paper becomes uneven in the axial direction, causing wrinkles and unevenness in the printed running paper.

This causes meandering, etc. This phenomenon becomes more noticeable as the transfer speed of the printed running paper, that is, the printing speed, becomes faster, and normal operation becomes impossible. A stepped portion of the transfer roller that makes the radius of the transfer roll including the folded portion on one side edge where the paper thickness of the already running paper is thicker and the radius of the transfer roll including the folded portion on the other side edge where the paper thickness is thinner than the folded portion is approximately equal. It is provided on the outer circumferential surface, and differences in paper thickness in the width direction of the printed running paper are evened out by the step portion.

Since it is approximately uniform, wrinkles, deviation, meandering, etc. do not occur on the printed running paper even without reducing the operating speed of the entire single-wheel printing press. In addition, the transfer roller is placed upstream of the folding cylinder so that the wrapping angle of the printed running paper around the transfer roller is small, allowing smooth transfer from one folding machine system to the other folding machine system. Since the work is carried out on a regular basis, work efficiency is improved.

(Embodiment) Next, the printed running paper transfer device for a folding machine of a rotary printing press according to the present invention will be explained with reference to the embodiment shown in Fig. 1.2.3.

It consists of folding machine A system on the right side and folding machine B system on the left side.

Both the folding machine A system and the folding machine B system are the same.

A triangular plate (2) for vertically folding a plurality of stacked sheets of printed running paper (continuous paper) (1) into two.

The guide rollers (3) (3') and the first stage nipping roller (4) (4'') and the second stage nipping roller (6) (apply appropriate tension to the printed running paper (1) and send it downward.
6), a saw cylinder (8) that cuts the printed running paper (1) into unit paper bundles of a predetermined length L), and a folding blade (8) that rotates synchronously with respect to the saw cylinder (8). 9), a folding drum (10) that folds the unit paper bundle into two in a direction perpendicular to the length direction thereof, and a folding drum (10) that receives the unit paper bundle folded in half and arranges it on a conveyor (not shown). and an impeller (not shown) that sends out the air to the air. Also (13) (13')
is a printed running paper transfer device for folding machines that transfers the printed running paper (1) from folding machine A system to folding machine B system or from folding machine B system to folding machine A system; The printed running paper transfer device (13) includes transfer rollers (14) (15)
The printed running paper transfer device (13”) for the other folding machine is composed of only a.

Consisting only of transfer rollers (14') (15''), each transfer roller (14') (15) and (14')
(15") is attached to the frame of a rotary printing press. In addition, (19) in Figure 2 is the fold formed on the - side edge side of the printed running paper (1), and (20) is the same printed sheet. Completed running paper (
1) The tongue portion on the other side edge side, (21) is a large diameter portion provided in the portion of the transfer roller (14) (15) and (14') (15') that is in contact with the tongue portion (20). (step part). Further, (22) in FIG. 3 showing another embodiment is the transfer roller (14) (15) and (14') (1
5′) is a small diameter portion (stepped portion) provided at the portion where the folding portion (19) comes into contact. In Figure 2.3.

Let (tl) be the thickness of the folded part (19), and (to) be the average thickness.

Transfer rollers (14) (15) and (14') (15
″) large diameter part (21) and small diameter part (22) (step part)
The height h) (h") is approximately (t+-to). Also, the width (spout (W") of the large diameter part (21) and small diameter part (22) (step part) is 50 mm. .

It is about 10mm. Also, the transfer roller (14) (
15) and (14”) (15”) printed running paper (1
) is set as (α−β)(α°=β”), and the transfer roller (1
4) (15) and (14') (15') are folding cylinders (10)
is located upstream of the

Next, the operation of the printed running paper transfer device for the folding machine of the rotary printing press shown in FIG. 1.2.3 will be explained in detail. - The printed running paper (1) with folds (19) formed on the side edges is folded into the folding machine A.
When transferring from the folding machine system to the folding machine B system, the printed running paper (1) contacts the transfer rolls (14) and (15) with small wrapping angles (α) and (β).

At this time, if the radius of the transfer rolls (14) and (15) is the same throughout the entire axial direction, the tension on the printed running paper (1) will become uneven in the axial direction, causing wrinkles in the printed running paper (1). .

Misalignment, meandering, etc. occur. This phenomenon occurs on printed running paper (
1) The faster the transfer speed, that is, the printing speed, the more pronounced the problem becomes, and the more the printed running paper transfer device for a folding machine according to the present invention becomes unable to operate normally.

One side edge fold part (19) where the paper thickness of the printed running paper (1) is thick
The radius of the transfer roll (14) (15) including the paper thickness is approximately equal to the radius of the transfer roll roll (14) (15) including the other side edge where the paper thickness is thinner than the folded part (19). A large diameter portion (21) in Fig. 2 or a small diameter portion (22) in Fig. 3) is provided on the outer peripheral surface of the transfer roller (14) (15).
Differences in paper thickness in the width direction of the printed running paper (1) are evened out by the step portion, making it approximately equal, so the printed running paper (1) can be printed without reducing the operating speed of the entire rotary printing press. 1) Wrinkles.

No deviation or meandering occurs. Also, the wrapping angle (α
) (β) is small.
5) is disposed upstream of the folding cylinder (10), and the transfer from the folding machine A system to the folding machine B system is performed smoothly.

Further, the above operation is performed in the same manner when the printed running paper (1) is transferred from the folding machine B system to the folding machine A system. Note that the phase alignment of the printed paper, which was performed by the movable transfer roller (015) of the conventional printed running paper transfer device for the folding machine shown in FIG. That's fine.

(Effects of the Invention) As described above, the printed running paper transfer device for the folding machine of a rotary printing press of the present invention has the following characteristics: A step portion is provided on the outer peripheral surface of the transfer roller so that the radius of the transfer roller including the other side edge, which is thinner than the above-mentioned folded portion, is approximately equal, and the difference in paper thickness in the width direction of the printed running paper is equal to the step portion. Because it is evened out by parts, it becomes approximately equal.

To prevent wrinkles, deviation, meandering, etc. from occurring on printed running paper without reducing the operating speed of the entire rotary printing press. In addition, the transfer roller is placed upstream of the folding cylinder so that the wrapping angle of the printed running paper around the transfer roller is small, allowing smooth transfer from one folding machine system to the other folding machine system. This has the effect of improving work efficiency.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to these embodiments, and can be modified in various ways without departing from the spirit of the present invention.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of the printed running paper transfer device for a folding machine of a rotary printing press according to the present invention, Fig. 2 is a front view showing an embodiment of the transfer roller, and Fig. 3 is the same transfer device. A front view showing another embodiment of the roller, FIG. 4 is a side view showing a printed running paper transfer device for a folding machine of a conventional rotary printing press, and FIG. 5 is a side view of a printed running paper transfer device for a folding machine of a rotary printing press. It is a front view showing a transfer roller. (1)...Printed running paper, (19)...Folding portion of printed running paper (1), (10)...Folding cylinder, (14)
(15) and (14') (15'')... Transfer roller machine system, (21) (22)... Step portion, A, B...
・Folding machine system, (α) (β) (α′) (β”)... Printed running paper (1) Transfer roller (14) (15) and (
14') Wrapping angle for (15'). Sub-agent Patent Attorney Shigemon Okamoto (2 persons) Figure 2 Figure 3

Claims (1)

[Claims] A printed running paper for a folding machine of a rotary printing press that transfers printed running paper, which is folded along the running direction to form a fold on one edge side, from one folding machine system to another folding machine system via a transfer roll. In the paper transfer device, the radius of the transfer roll including the folded portion on one side edge where the printed running paper is thick is approximately equal to the radius of the transfer roll including the other side edge where the paper thickness is thinner than the folded portion. Rotary printing characterized in that a stepped portion is provided on the outer circumferential surface of the transfer roller, and the transfer roller is disposed on the upstream side of the folding cylinder so that the wrapping angle of the printed running paper with respect to the transfer roller is small. Printed running paper transfer device for the folding machine of the machine.