JPH0286560A - Folder for rotary press - Google Patents

Abstract

PURPOSE:To make a stopping folding cylinder startable in accord with timing to a cylinder with a gripping cylinder by installing a braking means for giving a brake to the folding cylinder starting it drive so as not to be dragged till a driving selector means is normally engaged at time of starting the brake of the stopping folding cylinder. CONSTITUTION:When a stopping folding cylinder is driven and changed over in a state of gathering paper discharging, the folding cylinder so far driven is once stopped. Subsequently, a braking means 22 is operated, and braking is given to both folding cylinders 4', 5' at the nondriving side. Afterward, fixation of the folding cylinders 4', 5' at the nondriving side is released. Successively a driving selector means 12 is operated. At this time, this driving selector means 12 is accurately engaged and the folding cylinders 4', 5' at the nondriving side are connected to a driving system. Then, the braking of the folding cylinders 4', 5' at the nondriving side is released, and the holding cylinders 4', 5' at the nondriving side is started in accord with timing to a cylinder with gripping device.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a folding machine in a single rotary printing press, and particularly to a folding machine that slits the entire paper width into multiple ribbons, and separates the multiple ribbons into separate ribbons. It relates to a type of folding machine that folds sheets into separate signatures into a folding cylinder and discharges the signatures from one location.

[Prior Art] Figure 2 is a schematic diagram showing a folding machine that discharges two types of signatures of 16 pages and 32 pages from one place using one machine.
Figures (a) to (d) show the first page when folded into a 32-page signature. Second. Figures 4 (a) to (d) showing the rotation timing position of the third cylinder are the first cylinder when folding into a 16-page signature. Second. It is a figure which shows the rotation timing position of a 3rd cylinder.

In the folding machine shown in Fig. 2, when the paper is folded into a 32-page signature and discharged, so-called 32-page signature discharge, the entire width of the paper is cut by the slitter 1, and then folded lengthwise by the triangular plates 2 and 2'. , this is pulled by the pulling roller groups 3 and 3', respectively, and the two ribbons are brought together between the first cylinder 4 and the second WA 5,
1st torso4. Cut between the 2nd g45, make the first cut, and make the 2nd g45 cut. A second folding is performed between the third frame 546 and the paper is discharged at the paper discharge section 7.

In the case of discharging a 16-page folded book, the ribbon 8 side takes the same flow as described above, but the ribbon 8' side is guided between the first cylinder 4' and the second cylinder 5', and the ribbon 8' side is guided between the first cylinder 4' and the second cylinder 5', 5', make the first cut, and make the second cut between the second cylinder 5' and the third cylinder 6.
The paper is folded in the mouth and discharged by the paper discharge section 7.

Therefore, in the case of discharging a 32-page signature, there is no need to rotate the first cylinder 4' and the second cylinder 5', as shown in FIG. The transmission system and the rotary drive section are separated.

However, since the gripping device II9 of the third cylinder 6 protrudes from the outer periphery of the cylinder, the second cylinders 5 and 5' are each provided with reliefs 5-c to prevent contact with the rotating gripping device 9. Therefore, the second cylinder 5' and the first cylinder 4' must always be stopped at the positions shown in FIGS. 3(a) to (d).

Also, in order to always stop at the position shown in Figure 4 (a) when switching, a signal is taken from the same rotation ratio as No. 21q5, 5'.
I am trying to stop it at this position.

In addition, as a conventional technique related to this type of folding machine, there is a technique described in Japanese Patent Application Laid-open No. 54-70106 and Japanese Patent Application Laid-Open No. 61-37657.

[Problems to be Solved by the Invention] As can be seen from the foregoing, in a folding machine having a plurality of sets of folding cylinders, when only some sets of folding cylinders are driven to eject a folded sheet, it is difficult to The folding cylinder on the driving side must be fixed in a fixed position relative to the cylinder having the gripping device. When starting to drive a stopped folding drum, it is necessary to start the folding drum from the same position where it was stopped.

The prior art does not take these points into consideration.

An object of the present invention is to provide a folding machine having a plurality of sets of folding cylinders.
When the folding cylinders of some sets are driven to eject signatures, the relative position of the non-driving side folding cylinder with respect to the cylinder with the gripping device is reliably maintained in winter, and when the folding cylinder is stopped To provide a folding machine for a rotary printing press capable of starting a winter folding cylinder from a fixed position when the folding cylinder starts driving, in synchronization with a cylinder having a gripping device. Another object of the present invention is to provide a folding machine for a rotary printing press that can softly switch between the usage status of all sets of folding cylinders and the usage status of some sets of folding cylinders. be.

[Means for Solving the Problems] The above object has a plurality of sets of folding cylinders, and has two or more modes of use: one in which all the sets of folding cylinders are driven, and the other in which only some sets of folding cylinders are driven. In a folding machine for a rotary printing press that selectively switches and folds and discharges the folding cylinders from one location, a drive switching means that connects or disconnects some of the sets of folding cylinders from a drive system; a position fixing means for fixing the folding drum on the non-driving side in a fixed position when the set of folding cylinders is not driven; This is achieved by providing a braking means that applies a brake so that the folding cylinder that starts driving does not rotate together until the switching means is properly engaged.

The other object is achieved by using an air clutch as the drive switching means and using an air brake as the braking means.

[Function] In the present invention, in a folding machine having multiple sets of folding cylinders, from a state in which all sets of folding cylinders are used to eject a signature, to a state in which the folding cylinders in all sets are used to eject a signature, only a part of the sets of folding cylinders are used to eject a signature. When switching to a state where paper is ejected, winter rotation is temporarily stopped.

Next, the folding cylinder on the non-driving side is fixed by position fixing means so that it does not move from the fixed position. Thereby, the relative position of the folding cylinder on the non-driving side relative to the cylinder having the gripping device for winter use can be reliably maintained.

Then, the non-drive side folding drum is separated from the drive system by the drive switching means.

Then, only the folding cylinder on the drive side starts rotating.

Next, when switching to a state in which the stopped folding cylinder is driven to eject a signature, the folding cylinder that has been being driven is temporarily stopped.

Then, the braking means is activated to apply braking to the folding drum on the non-driving side.

Next, the fixation of the non-drive side by the position fixing means is released.

Next, turn on the drive switching means. At this time, the drive switching means are properly engaged and the non-drive side folding cylinder is connected to the drive system.

Thereafter, the braking of the non-drive side folding cylinder by the braking means is released.

Next, the drive system is driven to rotate the folding cylinder on the driving side and the folding cylinder on the non-driving side.

In this way, in the present invention, when the drive on the non-drive side starts, the braking means applies a brake to the folding drum on the non-drive side until the drive switching means is engaged normally, so that the folding drum on the non-drive side changes as the drive switching means moves. It is possible to prevent rotational co-rotation, and therefore it is possible to start the winter version in synchronization with the timing of the trunk having the gripping device.

Furthermore, in the present invention, the drive switching means is an air clutch, and the braking means is an air brake, so that the usage state of all sets of folding drums and the usage state of some sets of folding drums can be changed in a soft manner. You can switch to .

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows one embodiment of the present invention, and is an enlarged development view of a folding drum of a folding machine and its surrounding parts.

The embodiment shown in FIG. 1 includes a frame 10 and a first... Second body 4,
Group 5 and 1st. A set of second cylinders 4' and 5', a third cylinder 6 rotatably supported on the same frame 10, and a third cylinder 6 rotatably supported on the same frame 10.
An air clutch 12 which is a drive switching means attached to the shaft 11 of the shell 6, a limit switch 13 for confirming engagement of the air clutch 12, a gear 14 connected to a drive source (not shown), 2. Gears 4-a, 5-a provided in the third M4, 5.6 and connected to the gear 14
, 6-a, and the third . Second. 1st Jli6.5',
4' and connected to or disconnected from the drive system via the air clutch 12, gears 6-b, 5'-a,
4'a, a position fixing means 15 for the folding cylinder on the non-driving side, a fixing device platform 2o for this position fixing means 15, an air brake 22 which is a braking means for the folding cylinder on the non-driving side, and a control section. (not shown).

The second barrels 5, 5' are provided with reliefs (numerals 5-c and 5' in FIGS. 3 and 4) to prevent the third barrel 6 from coming into contact with the gripping device.
-c) is formed.

The 396 is provided with gripping devices (indicated by reference numeral 9 in FIGS. 3 and 4) at intervals of one circumferential direction.

The air clutch 12 is formed to mesh at one point in order to regulate the rotation timing of the first and second cylinders 4' and 5' relative to the third rg 46.

Further, this air clutch 12 is connected to the first air clutch 12. No. 211i4.5
and the first group. From the operating state in which the set of second cylinders 4' and 5' is driven to eject a signature, the first. When switching to a usage state in which only the set of second cylinders 4 and 5 is driven to eject signatures, the controller turns the switch to OFF as shown in FIG. 2nd, 111i6,5',4
gears 6-1, . 5/-a, 4/-a
The column is now separated from the drive train. This air clutch 12 is the first air clutch. From the operating state in which only the second cylinders 4 and 5 are driven to eject signatures, the first cylinder. 2nd J
5i4.5 set and 1st. When switching to a state of use in which both sets of second cylinders 4' and 5' are driven to eject signatures, the control unit switches ON, and the third cylinder 4', 5' is turned ON by the control section. Second
, gears 6-b provided in the first cylinders 6.5', 4';
s/-a, 4/+a are connected to the drive system via the shaft 11, and the first. The second M4', 5' pair is the first. It rotates synchronously with the second cylinders 4 and 5.

The engagement confirmation limit switch 13 is designed to confirm whether or not the air clutch 12 is normally engaged when the air clutch 12 is turned on.

The position fixing means 15 includes a fixing rod 16 and a frame lO.
It has an insertion port 17 formed in the first body 4', a fixing hole 18 formed in the first body 4', and a limit switch 19. The insertion port 17 is the first one. When the second cylinders 4', 5' are not driven and are stopped at a predetermined position, the fixing hole 18
It is formed so as to be located on the same center line as the The fixing rod 16 is the first. When the drive of the second group 4', 5' is stopped, insert it into the fixing hole 18 from the insertion port 17, and insert the first pair.
Until the drive of the set of the 21st cavities 4' and 5' starts, the 1st. The set of 2714' and 5' is fixed at a predetermined stop position.

The limit switch 19 connects the fixed rod 16 to the insertion port 17.
When it is inserted into the fixing hole 18, it is turned on and the fixing rod 16 locks the first. It is confirmed that the set of second cylinders 4' and 5' is stopped at a fixed position.

The fixed rod storage place 20 is fixed to the frame IO. This fixed rod storage place 20 has a limit switch 21
is provided. The fixed rod 16 of the position fixing means 15 can be inserted vertically downward into this fixed rod storage space 20 and supported.6 The limit switch 21 supports the fixed rod 16 in the fixed rod storage space 20. At this time, the fixing rod 16 is turned on, thereby causing the first. It is designed to confirm that the position fixation of the set of second cylinders 4' and 5' has been released.The configuration of other parts of this folding machine is the same as that shown in Fig. 2. .

The folding machine of this embodiment is operated and operated in a 5-order manner.

That is, 1st. A set of second cylinders 4 and 5 and a pair of first cylinders. 2nd barrel 4'
, 5' are both driven to eject a signature, as shown in FIG. When switching to a state of use in which the set of second cylinders 4 and 5 is driven to discharge signatures, the drive system is stopped and the rotation of each column is temporarily stopped. At this time of stopping, the 21st] M5.5' contact prevention reliefs 5-c, 5'-
The timing is set electrically so that the motor stops at the position where c matches.

Further, in this state, the insertion opening 17 of the fixing rod 16 of the position fixing means 15 and the center line of the fixing hole 18 almost coincide with each other.

Therefore, the fixing rod 16 is inserted into the fixing hole 18 from the insertion port I7, and the first
, the set of the second j-th sinuses 4' and 5' is fixed in position. As a result, the first. 2nd torso 4. ', 5' group until the drive starts.

It can be reliably held at a predetermined stop position. When the fixing rod 16 is inserted into the fixing hole 18 from the insertion port 17, the limit switch 19 is turned ON by the fixing rod 16, and the first. The fixation of the position of the pair of second cylinders 4' and 5' is detected, the detection result is output to the control section, and the control section controls the position of the second cylinders 4', 5'. Confirm that the second JIj 14', 5' set has stopped at the predetermined stopping position.

Then, the air clutch 12 is turned off by the control section as shown in FIG. As a result, the gear 14 constituting the drive system, the first gear. Second. 3rd; Cave 4, 5.6
Gears 4-a and 5-a provided in the.

6-a and from the axis 11 of the third barrel 6, the third. Second,
A gear 6-b provided on the first cylinder 6.5', 4'.

The rows 5'-a and 4'-a are separated, and the 1st. 211th
The transmission of power to the pair of 44' and 5' is cut off6.
At the time of this switching, the air brake 22 is set to OFF and is not operating to apply braking.

Next, the drive system is driven, and the gears 4a and 5 are shifted from the gear 14 to the gears 4a and 5.
-a and 6-a, power is transmitted through Fig. 3 (a), (
As shown in (b), (c), and (d), the first degree, the second degree, and the second degree. Third
II A 4, 5.6 is rotated to discharge the signature sheet.

Next, the first. As shown in FIG. 4, from the usage state in which only the second cylinders 4 and 5 are driven to eject signatures, the first cylinder 4 and 5 are driven. The second set of 4 and 5 and the first. When switching to the usage state in which both sets of 2nd II 4' and 5' are driven to eject signatures, first the 1st and 2nd sets, which were being driven up until then, are switched. 3rd body 4,
5. Temporarily stop 6.

Then, the control unit turns on the air brake 22,
1st on the non-drive side. Braking is applied to the second cylinders 4' and 5'.

Next, the fixing rod 16 of the position fixing means 15 is pulled out from the insertion port 17 and the fixing hole 18, and the fixing rod 16 is inserted vertically downward into the fixing rod storage space 20 to be supported.

By inserting the fixing rod 16 into the fixing device recess 20, the limit switch 21 is turned on, thereby causing the position fixing means 15 to move to the first position. The release of the fixed position of the set of second cylinders 4'5' is confirmed, and the confirmation result is output to the control section.

Turn on the air brake 22 and position fixing means 15
According to 1st. After releasing the fixed position of the 211th M4', 5' set, the air clutch 12 is turned on by the control section. This causes gear 14.4-a.

The rows of gears 6-b, 5'-a, and 4'-a are connected to a drive system composed of the rows of gears 5-a and 6-a and the shaft 11.

When the air clutch 12 is properly engaged, this is confirmed by the engagement confirmation limit switch 13,
The confirmation result is output to the control section.

After confirming that the air clutch 12 is properly engaged, the control section switches the air brake 22 to OFF. Due to the action of this air brake 22, the first and second cylinders 4' and 5' are rotated until the air clutch 12 is properly engaged.
It is possible to reliably prevent the pair of 1. It becomes possible to start the set of the 211th [4', 5' from the same position where it stopped at the fixed position when not driven, in synchronization with the timing of the 3rd Jj16 having the gripping device.

Next, the drive system is driven, and the first. 2nd g44°5 set, 3rd cylinder 6, 1st. The set of second cylinders 4' and 5' are rotated synchronously to discharge the folded sheets.

Further, in this embodiment, as described above, the air clutch 12 is used as the drive switching means, and the air brake 22 is used as the braking means.
By using a clutch or brake, it is possible to perform the switching operation more softly than when using a clutch or brake that is mechanical, electrical, or a combination of these.

In addition, in the fifth invention, the folding cylinder is the first one. The 211th M4.5 group and the 1st. The present invention is not limited to the one using the set 21144' and 5', but can be applied to any folding machine in general that discharges folded sheets using a plurality of sets of folding cylinders.

[Effects of the Invention] According to the invention described in claim 1 of the present invention described above, there is a plurality of sets of folding cylinders, and a usage state in which all sets of folding cylinders are driven and a part of the sets of folding cylinders are driven. In a folding machine of a rotary printing press that selectively switches to a usage state in which only the cylinders are driven to generate signatures and discharge the signatures from one location, some of the sets of folding cylinders are connected or disconnected from the drive system. a drive switching means; a position fixing means for fixing the folding drum on the non-driving side in the fixed position when the folding cylinders of the partial set are not driven; When the drums start to be driven, a braking means is provided that applies a brake so that the folding drums that start driving do not rotate together until the drive switching means is properly engaged, so that only some sets of folding drums are driven. When in use, the folding cylinder on the non-driving side is reliably maintained in its winter relative position with respect to the cylinder with the gripping device, and when the folding cylinder that is stopped is started to drive, the folding cylinder is This has the effect that the winter model can be started from the same position where the machine is stopped, in synchronization with the torso having the gripping device.

Furthermore, according to the invention set forth in claim 2 of the present invention, the drive switching means is an air clutch;
According to the described invention, since the braking means is an air brake, there is an effect that the switching operation between the usage state of all sets of folding drums and the usage state of some sets of folding drums can be performed softly. .

[Brief explanation of drawings]

Fig. 1 shows an embodiment of the present invention, and Fig. 2 shows an enlarged development view of the folding drum of the folding machine and its surrounding parts.
A schematic diagram showing a folding machine that discharges two types of signatures of 6 pages and 32 pages from one place, Figures 3 (a) to (d) are 32
The first step when folding into a page signature. Figures 4 (a) to 4 (d) showing the rotation timing positions of the second and third cylinders are for the first cylinder when folded into a 16-page signature. It is a figure which shows the rotation timing position of a 2nd and 3rd cylinder. 4.4'...first cylinder, 4-a, 4'-a...gear,
5゜5'...Second cylinder, 5-a, 5'-a...Gear,
6...Third cylinder, 6-a, 6-b...Gear, 9...
Third cylinder gripping device, 10... Frame, 11... Third cylinder shaft, 12... Air clutch as drive switching means, 13... Engagement confirmation limit switch, 14...
・Gear connected to the drive source, 15... position fixing means,
16...Fixing rod constituting the position fixing means, 17.
・Insert for fixed rod, 18 ・Same as fixed food, 19...
・Limit switch, 20...Fixing device location, 21・
...Limit switch, 22...Air brake as a braking means.

Claims (1)

[Claims] 1. It has a plurality of sets of folding cylinders and can be selectively switched between a usage state in which all sets of folding cylinders are driven and a usage state in which only some sets of folding cylinders are driven. In a folding machine in a rotary printing press that folds a book and discharges the signature from one location, a drive switching means for connecting or disconnecting some sets of folding cylinders from a drive system;
a position fixing means for fixing the folding cylinders on the non-driving side in a fixed position when the folding cylinders of the partial set are not driven; 2. A folding machine for a rotary printing press, comprising: a braking means for applying braking so that the folding cylinder that starts driving does not rotate together until the drive switching means is properly engaged. 2. The folding machine for a rotary printing press according to claim 1, wherein the drive switching means is an air clutch. 3. The folding machine for a rotary printing press according to claim 1, wherein the braking means is an air brake.