JPH1192007A - Folding machine with decelerating drum for rotary press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate an occurrence of breakage or rucks at a folding line part, or the tip end part, of a signature even in the high speed operation, thereby insuring good folding accuracy, to stabilize the discharging work of the signature and to further the high speed of the rotary press. SOLUTION: A folding machine is provided with a decelerating drum 5, which receives a signature that was formed at a parallel folding part 1 having a gripper drum 4. The decelerating drum 5 is rotated more slowly than the peripheral speed of the gripper drum 4. In the folding machine, a void space V is prepared between the gripper drum 4 and the decelerating drum 5. In addition, a signature carrying means 100, which carries the signature discharged from the gripper drum 4 toward the decelerating drum 5, and a speed decreasing/sending means 80, which sends the signature carried by the signature carrying means 100 to the decelerating drum 5 in a restricted state while gradually decelerating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary press folding machine provided with a speed reducer.

[0002]

2. Description of the Related Art Heretofore, a rotary press having a reduction drum as shown in FIG. 6 has been used for a rotary press frequently handling printed choppers. In this type of folding machine, as shown in the figure, a chopper folding device 9 is provided between a parallel folding section 1 including a saw cylinder 2, a folding cylinder 3 and a holding cylinder 4, and the periphery of each cylinder of the parallel folding section 1. There is provided a reduction drum 5 rotating at a speed lower than the speed, and a transfer drum 6 rotating at the same peripheral speed as the reduction drum 5 in contact with the reduction drum 5. Then, these speed reducers 5
And the transfer cylinder 6 are respectively connected to two sets of chopper folding devices 9a and 9b which are disposed at an interval above and below.

[0003] In the folding machine equipped with such a speed reduction cylinder 5, the continuous paper W, which has been printed and sent to the parallel folding section 1, has a predetermined size between the saw cylinder 2 and the folding cylinder 3. A signature S1 that is cut and folded in half in parallel with the cutting line between the folding cylinder 3 and the holding cylinder 4 is formed. And
The folded signature S1 is transferred from the holding drum 4 to the reduction drum 5 on the drum, and is transferred from the reduction drum 5 to the lower chopper folding device 9b and from the reduction drum 5 to the upper drum via the transfer drum 6. The sheet is alternately sent out to two paths of the path to the chopper folding device 9a. Lower conveyor belts 7a, 7b
And the signatures S1 alternately transferred one by one to the upper conveying belts 8a and 8b passing through the transfer drum 6, and are conveyed while being held between the conveying belts 7a and 7b and 8a and 8b. . The leading end of the signature S1 is connected to the upper and lower chopper folding devices 9a and 9b, respectively.
When the stopper S hits each of the stoppers 19, the chopper blade protrudes into the center of the stopped signature S1, thereby forming a signature S2 that is half-folded at a right angle to the cutting line of the signature S1.

[0004] In the folding machine provided with the speed reduction drum 5 as described above, 2
By alternately using the series chopper folding devices 9a and 9b, the conveying speed of the signature S1 to the chopper folding device can be reduced. As a result, even if the printing speed of the rotary press is increased, the signature S1 is kept in the chopper folding device 9.
Since the rebound when the stoppers a and 9b hit the stopper 19 is reduced, the folding accuracy is stabilized, and high-speed operation during chopper folding becomes possible.

[0005] Incidentally, the reduction cylinder 5 in such a conventional folding machine has been provided close to the holding cylinder 4 with a small gap as shown in Figs. Then, the folding line portion, which is the tip of the signature S1, which is folded in half in parallel with the cutting line between the folding cylinder 3 and the holding cylinder 4 of the parallel folding section 1, as shown in FIG. , Holding jaw 41 of holding body 4
And a holding plate 42 opened and closed by a cam mechanism (not shown).
And conveyed along the outer periphery of the holding drum 4. Subsequently, when the holding position of the signature S1 approaches the stopper 51 of the reduction drum 5, as shown in FIG.
The gripper plate 42 is separated from the gripper jaw 41 by the cam mechanism to release the leading end of the signature S1. Next, the reduction cylinder 5
FIG. 7 shows that the claw 52 which is opened and closed by a cam mechanism (not shown) raises the folding line portion of the signature S1 folded into the holding jaw 41 of the holding cylinder 4 by the cam mechanism.
As shown in (c), the leading end of the signature S1 hitting the stopper 51 of the speed reduction drum 5 is pressed and caught by the claw 52 and received.

[0006]

However, the conventional folding machine provided with such a speed reduction drum 5 has the following problems. (1) Since the delivery of the signature S1 is performed on the body from the gripper cylinder 4 having a high peripheral speed to the reduction cylinder 5 having a low peripheral speed, the leading end of the signature S1 from the gripper cylinder 4 is When the sheet S1 comes into contact with the stopper 51, the signature S1 rebounds. At high speeds, depending on the paper quality, the folding line portion of the signature S1 may be torn or wrinkled, making it difficult to secure good folding accuracy. (2) Since the signature S1 is transferred on the two cylindrical cylinders having different peripheral speeds from the gripper cylinder 4 to the reduction cylinder 5, simultaneous gripping from the gripper cylinder 4 to the reduction cylinder 5 is not possible. It is possible. In addition, the leading end of the signature S1 folded into the holding drum 4 is peeled off by the claw 52 of the speed reduction drum 5, and then the operation of grasping the peeled distal end of the signature S1 is performed. It was temporarily unrestrained, and the delivery was disturbed, which led to poor chopper folding accuracy. (3) In order to improve the delivery accuracy by shortening the unrestricted state of the signature S1 as much as possible, the holding plate 4 of the holding cylinder 4 is required.
It is necessary to further shorten the opening / closing operation time of the pawl 52 of the gear 2 and the reduction drum 5, but according to this, the load of the device itself increases and the practicality is lost. Therefore, it was not possible to expect further higher speed of the rotary press with the conventional folding machine.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fold line portion at the end of a signature without breaking or wrinkling even at a high speed operation, and having a good folding accuracy. It is an object of the present invention to provide a rotary press-equipped folding machine with a reduction drum, which can secure signatures and stably discharge the signatures and further increase the speed of the rotary press.

[0008]

According to the present invention, there is provided a speed reduction cylinder for receiving a signature formed by a parallel folding portion having a gripping cylinder. In the folding machine that rotates at a speed lower than the peripheral speed of the gripping cylinder, a gap is provided between the gripping cylinder and the reduction cylinder, and the signature discharged from the gripping cylinder is directed to the reduction cylinder in this gap. A signature conveying means for conveying the signature and a deceleration sending means for sending the signature conveyed by the signature conveying means to the reduction drum while gradually decelerating the signature in a restrained state are provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIGS. 1 to 4 show a first embodiment of a folding machine with a reduction drum of a rotary press according to the present invention. The folding machine of the present embodiment has a known parallel folding section 1 into which a printed continuous paper W is fed, and the parallel folding section 1 includes a saw cylinder 2,
It comprises a folding cylinder 3 and a holding cylinder 4. In the parallel folding section 1, a signature S1 cut into a predetermined size between the saw cylinder 2 and the folding cylinder 3 and folded in two parallel to the cutting line between the folding cylinder 3 and the holding cylinder 4. Is formed. In relation to the parallel folding portion 1, a speed reduction drum 5 that receives the signature S1 from the gripping drum 4 while rotating at a speed lower than the peripheral speed of the gripping drum 4, and is disposed in contact with the speed reduction drum 5. And a transfer cylinder 6 that receives the signature S1 from the reduction drum 5 while rotating at the same peripheral speed as the reduction drum 5.

The reduction cylinder 5 and the transfer cylinder 6 are connected to upper and lower chopper folding devices 9a and 9b which are disposed at an interval in the vertical direction. Signature S1 discharged from
Upper and lower transport belts 7a and 7b for receiving and transporting the transfer cylinder 6 are provided to the upper chopper folding device 9a.
Upper and lower transport belts 8a and 8b are provided for receiving and transporting the signature S1 discharged from the printer. In the upper and lower chopper folding devices 9a and 9b, the signature S1 which is conveyed while being sandwiched between the transport belts 7a and 7b and between the transport belts 8a and 8b is chopper-folded. To form a signature S2 that is half-folded at right angles to the cutting line.

The folding machine with a speed reducer according to the present embodiment is applied to the folding machine for a commercial offset rotary press configured as described above, and includes a speed reducer 5 and a gripping cylinder 4 of a parallel folding portion 1. Is provided with a gap V. In the gap V, a signature conveying means 100 for conveying the signature S1 discharged from the holding drum 4 toward the reduction drum 5 is provided.
And a deceleration sending means 80 for sending the signature S1 conveyed by the signature conveying means 100 to the reduction drum 5 while gradually decelerating the signature S1 in a pressure-constrained state. The signature conveying means 100 is composed of an upper conveying device 70 and a lower conveying device 90. The upper conveying device 70 swings in the vertical direction in accordance with the discharge timing of the signature S1 discharged from the holding drum 4. A swinging mechanism 60 that moves is additionally provided.

[0013] As shown in FIG.
A discharge-side outer peripheral surface 4a of the gripper cylinder 4, a rotatable pulley 71, 72 disposed above the outer peripheral surface 4a, and a rotatable pulley 73 disposed near the gripping position of the reduction drum 5.
And a drive pulley 74 that is mechanically driven to rotate at the same peripheral speed as the outer periphery of the holding drum 4 and that the upper transport belt 75 is stretched in a double row. The pulley 73 is configured to be able to swing up and down in synchronization with the ejection timing of the signature S1 ejected from the holding drum 4 via the swing mechanism 60. This swing mechanism 60
As shown in FIG. 3, the eccentric shaft 37 has an eccentric shaft 37 for rotatably supporting the pulley 73. Both sides of the eccentric shaft 37 are attached to a frame (not shown) via bearings 61. One end of the eccentric shaft 37 has an arm 3
8, a cam follower 39 is mounted on the cam 36. The cam follower 39 rolls on the outer peripheral surface of the cam 36 which is rotationally driven by the rotary driving device 62 in a cycle of discharging the signature S1 from the holding drum 4. Has become.

As shown in FIGS. 1 and 4, the deceleration sending means 80 is composed of a pair of upper and lower stepped acceleration / deceleration rollers 81a and 81b. The acceleration / deceleration rollers 81a and 81b are provided on the discharge side outer peripheral surface 4a of the holding drum 4.
The signature S <b> 1 peeled off by the paper peeling guide 15 disposed above and conveyed by the conveying means is disposed substantially at the center of a path to a predetermined position where the claw 52 of the reduction drum 5 is added. The acceleration / deceleration rollers 81a,
As shown in FIG. 4, the gears 81b are meshed with gears 87a and 87b fixed to the ends of the respective driving rollers, and the outer peripheral surface where the upper and lower rollers 81a and 81b contact each other has a double row. The upper and lower conveyor belts 75 and 95 are formed so as to protrude to positions avoiding them.

The upper acceleration / deceleration roller 81a has both shaft ends rotatably supported by a pair of left and right arms 88a, 88b, and one end of each arm 88a, 88b is supported by a support rod 8 respectively.
6 is rotatably mounted. And each arm 8
8a and 88b are provided with an air cylinder 82,
The upper acceleration / deceleration roller 81a is connected to the lower acceleration / deceleration roller 81b.
On the other hand, the outer peripheral surfaces of the respective rollers are configured to come into pressure contact with each other via the air cylinder 82. An acceleration / deceleration mechanism 83 having a well-known non-circular gear capable of periodic acceleration / deceleration rotation is provided at the drive-side shaft end of the lower acceleration / deceleration roller 81b. A rotational driving force from a driving source is applied via a belt 85 with a phase adjusting device (not shown). Note that the acceleration / deceleration mechanism 83 may be a mechanism that electrically changes the rotation of the parallel cam or the motor.

On the other hand, as shown in FIG. 2, the lower conveying device 90 is located on a straight line connecting the paper-peeling position of the gripping cylinder 4 and the gripping position of the reduction cylinder 5, and the fold discharged from the gripping cylinder 4. A flat guide plate 91 is provided for guiding (guiding) the claw S1 toward the grip replacement position of the reduction drum 5. The rotation of the guide plate 91 and the rotation provided at both ends of the extension of the guide plate 91 are provided. Lower transport belts 95 are respectively provided on free pulleys 92 and 93 and a pulley 94 which is disposed below the guide plate 91 and is mechanically driven to rotate at the same peripheral speed as the outer periphery of the holding cylinder 4.
Are arranged in a double row.

Next, the operation of the folding machine with a reduction drum of this embodiment will be described. First, when the operation of the rotary press is started and the continuous paper W is fed into the folding machine, the continuous paper W is cut to a predetermined size between the saw cylinder 2 and the folding cylinder 3 in the parallel folding section 1 and folded. Between the cylinder 3 and the holding cylinder 4, a signature S1 is formed which is folded in two parallel to the cutting line. Signature S1
The fold line portion is held between the holding plate 42 and the holding jaw 41 of the holding drum 4 and is carried along the outer periphery of the holding drum 4. Then, the gripper cylinder 4 further rotates, the gripper plate 42 is separated from the gripper jaw 41 by the cam mechanism, and the signature S1 is released from the gripper. After that, the signature S1 is peeled off from the gripper cylinder 4 by the paper peeling guide 15. It is. The signature S 1, which has been peeled off from the gripping cylinder 4 and nipped between the upper transport belt 75 and the outer peripheral surface of the gripping cylinder 4, is guided by the upper transport belt 75 and the lower transport belt 95 and is guided to the surface of the guide plate 91. Upper and lower acceleration / deceleration rollers 81a,
It is bitten between 81b. Then, the acceleration / deceleration rollers 81a, 81b rotating at the peripheral speed of the holding drum 4 are gradually decelerated and rotated via the acceleration / deceleration mechanism 83, and the trailing end of the signature S1 is rotated around the rotation of the reduction drum 5. Send out at high speed. After the trailing end of the signature S1 has been sent out, the acceleration / deceleration rollers 81a, 81
1b is gradually accelerated and rotated via the acceleration / deceleration mechanism 83, and the leading end of the next signature S1 is moved by the acceleration / deceleration rollers 81a, 81a.
It returns to the peripheral speed of the gripping cylinder 4 before it bites between 1b.

On the other hand, the eccentric shaft 37 of the pulley 73 at the leading end of the upper conveyor belt 75 on the reduction drum side is adjusted to the cam at the timing when the leading end of the signature S1 is bitten between the upper and lower acceleration / deceleration rollers 81a and 81b to start deceleration. It is rotated by 36. Accordingly, the pulley 73 is lifted upward and separated from the guide plate 91 as shown by the solid line in FIG.
The upper conveying belt 75 loses an extra action of pushing the signature S1 toward the reduction drum 5, and troubles such as generation of wrinkles on the surface of the signature S1 are prevented. The pulley 73
The optimum timing at which the upper conveyor belt 75 is separated from the signature S1 by floating can be easily adjusted not only during the adjustment operation but also during the normal operation by adjusting the phase of the cam 36.

Then, the leading end of the signature S1 sent out by the acceleration / deceleration rollers 81a and 81b along the surface of the guide plate 91 toward the grip changing position of the reduction drum 5 abuts on the stopper 51 of the reduction drum 5. At the same time, the claw 5
2 holds the folding line portion, which is the tip of the signature S1, and the switching to the reduction cylinder 5 is completed. The signatures S1 delivered to the reduction drum 5 are transferred one by one to the lower conveying belts 7a and 7b.
Are transferred to the upper conveyor belts 8a and 8b via the transfer cylinder 6, and the respective conveyor belts 7a, 7b and 8
a and 8b, upper and lower chopper folding devices 9a and 9b
To form a signature S2 that is half-folded at right angles to the cutting line of the signature S1. Thus 2
By alternately using the series chopper folding devices 9a and 9b, chopper folding can be performed in a high-speed operation state without reducing the printing speed of the rotary press.

As described above, in the folding machine with a speed reducer according to the first embodiment of the present invention, the gap V is provided between the gripper cylinder 4 and the speed reducer 5, and the space V is discharged from the gripper cylinder 4. Signature conveying means 10 provided with a deceleration sending means 80 for sending the incoming signature S1 to the reduction drum 5 while decelerating the signature S1
Since 0 is provided, the following effect is obtained. (1) From the holding drum 4 with a high peripheral speed to the reduction drum 5 with a low peripheral speed
In the process of delivering the signature S1, the signature S is rotated by acceleration / deceleration rollers 81a and 81b that periodically rotate in the acceleration / deceleration direction.
When the leading edge of the signature S1 abuts against the stopper 51 of the reduction cylinder 5, the delivery speed of the signature S1 is equal to the peripheral speed of the reduction cylinder 5. Therefore, even at the time of high-speed operation, since the leading end of the signature S1 does not abut against the stopper 51 of the reduction drum 5 and rebounds, breakage or wrinkling of the folding line portion is eliminated, and extremely good folding accuracy is secured. can do. (2) Since the delivery of the signature S1 from the gripper cylinder 4 to the reduction cylinder 5 is performed using the upper and lower transport belts 75 and 95, the signature S1 that has been folded by being gripped by the gripper plate 42 and the gripper jaw 41. Of the signature S1 is straightened during the conveyance, so that the claw 52 of the reduction drum 5 can easily receive the signature S1.
The upper conveyor belt 75 keeps the signature S1 in a restrained state until the signature S1 is engaged with the stopper 51 of the reduction drum 5 until the leading end of the signature S1 contacts the stopper 51 of the reduction drum 5.
Since the signatures 1a and 81b gradually decelerate and keep the signature S1 in the restrained state, the unconstrained state of the signature S1 as in the related art is eliminated, and the signature S2 can be stably discharged. (3) The upper conveyor belt 75 includes the swinging mechanism 60, and the leading end of the signature S1 has acceleration / deceleration rollers 81a and 81b.
The signature S is sent out in the direction of the reduction drum 5 while being gradually decelerated by the acceleration / deceleration rollers 81a and 81b because the signature S is lifted up at the same time as being caught in the middle.
No extra propulsive force is applied to 1 and the holding cylinder 4
The stable delivery of the signature S1 can be performed. (4) The delivery of the signature S1 from the gripper cylinder 4 to the reduction cylinder 5 is not performed on two cylindrical cylinders as in the related art, but is performed between a linear belt and a cylindrical cylinder. I have. In addition, by using the acceleration / deceleration rollers 81a and 81b, the conveying speed of the signature S1 is gradually reduced, and the delivery of the signature S1 is performed after the peripheral speed of the deceleration cylinder 5 is reached. Opening and closing operation can be performed gently, and the opening and closing amount can be minimized. Therefore,
The load on these switchgears is reduced and the cam followers 3
Since the wear such as No. 9 is extremely reduced, the life thereof is prolonged and the generation of noise is reduced, so that the speed of the rotary press can be further increased.

FIG. 5 shows a second embodiment of a folding machine with a speed reducer for a rotary press according to the present invention. In the first embodiment, a signature conveying means 100 provided between the gripper cylinder 4 and the reduction cylinder 5 for introducing the signature S1 into the reduction cylinder 5.
Is a signature S1 disposed on a straight line connecting the paper peeling position of the holding drum 4 and the gripping position of the reduction drum 5
And a pulley 9 disposed below the guide plate 91.
2, 93 and 94 and a lower conveyor belt 95 stretched along the surface of the guide plate 91 are run at the same peripheral speed as the holding drum 4. In the apparatus 90a, the lower transport belt is accelerated / decelerated.

That is, the lower conveying device 90a of the present embodiment
As shown in FIG. 5, in addition to the same guide plate 91 as in the first embodiment, a surface of the guide plate 91, a rotatable pulley 93 disposed below the gripper changing position of the speed reduction drum 5, and a speed reduction sending means. A plurality of rows of conveying belts 96 are stretched over the belt grooves formed on the lower acceleration / deceleration roller 81b of the roller 80, respectively. Further, the signature conveying means 100 is provided with a rotatable pulley 78 between the pulley 73 and the reduction drum 5 of the apparatus in addition to the upper conveying device 70 as in the first embodiment. Speed reducer 5 at 78
Around the discharge-side outer peripheral surface of the transfer drum 6 and the outer peripheral surface of the transfer drum 6 around the reduction-belt-roller-circulation guide belt 65.
It is arranged so as to be detoured along the conveyor belt 96 of Oa.

In the folding machine with a speed reduction cylinder according to the second embodiment of the present invention, the upper and lower acceleration / deceleration rollers 8 which are rotated by the leading end of the signature S1 discharged from the gripping cylinder 4 under pressure contact.
When bitten between 1a and 81b, the acceleration / deceleration rollers 81a and 81b rotating at the peripheral speed of the gripping cylinder 4 are gradually decelerated and rotated via the acceleration / deceleration mechanism 83. Accordingly, the peripheral speed of the transport belt 96, which is rotationally driven by the lower acceleration / deceleration roller 81b, is also gradually reduced, and the leading end of the signature S1 transferred on the transport belt 96 hits the stopper 51 of the reduction drum 5. At the moment of contact, the peripheral speed of the reduction cylinder 5 is attained. In addition, the deceleration cylinder surrounding guide belt 65 running at the same peripheral speed as the deceleration cylinder 5 acts so as to clamp the signature S1 approaching the repositioning position of the deceleration cylinder 5 with the transport belt 96. The leading end of the signature S1 is gripped by the reduction cylinder 5 in a correct posture, and the signature S1 can be more stably transferred from the grip cylinder 4 to the reduction cylinder 5.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes may be made without departing from the spirit of the present invention. What you get.

[0025]

As described above, the folding machine with a speed reducer according to the present invention has a speed reducer for receiving a signature formed by a parallel folding portion having a gripper, and the speed reducer is provided with the gripper. In a folding machine that rotates at a speed lower than the peripheral speed of the cylinder, a gap is provided between the gripping cylinder and the reduction cylinder, and a signature discharged from the gripping cylinder is transported to the reduction cylinder in the gap. And a deceleration sending means for sending the signature conveyed by the signature conveying means to the deceleration cylinder while gradually decelerating the signature conveyed in a constrained state. Is obtained. That is, according to the folding machine with a speed reducer of the present invention, even at the time of high-speed operation, the fold line portion, which is the tip of the signature, does not come into contact with the stopper of the speed reducer and rebounds. The generation of tears and wrinkles is eliminated, and the folding accuracy can be improved. In addition, signatures are transported while being held in a restrained state while being gradually decelerated by signature transporting means until immediately before the folding line portion, which is the leading end of the signature, comes into contact with the stopper of the reduction drum. In addition, the speed of the rotary press can be further increased.

[Brief description of the drawings]

FIG. 1 is a layout view showing an outline of a folding machine with a reduction drum according to a first embodiment of the present invention.

FIG. 2 is an enlarged view showing a main part of the folding machine with a reduction drum according to the embodiment.

FIG. 3 is a perspective view showing the vicinity of a swing mechanism of the folding machine with a speed reducer in FIG. 2;

FIG. 4 is a front view as viewed from a direction indicated by an arrow X in FIG. 2;

FIG. 5 is an enlarged view showing a main part of a folding machine with a reduction drum according to a second embodiment of the present invention.

FIG. 6 is a layout view showing an outline of a conventional folding machine with a reduction drum.

FIG. 7 is an enlarged view of a main part of a conventional folding machine with a speed reducer body, in which (a) shows a state in which the leading end of a signature is held between a gripper jaw and a gripper plate. (B) is a partial cross-sectional view showing a state in which the gripper plate is separated from the gripper jaw and the leading end of the signature is opened, and (c) is a signature which has hit a stopper of the reduction cylinder. FIG. 6 is a partial cross-sectional view showing a state in which the distal end of the body is gripped by a claw and is delivered to the reduction drum.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Parallel folding part 2 Saw cylinder 3 Folding cylinder 4 Holding cylinder 5 Reduction cylinder 6 Transfer cylinder 7a, 7b Transport belt 8a, 8b Transport belt 9a, 9b Chopper folding device 15 Paper stripping guide 36 Cam 37 Eccentric shaft 38 Arm 39 Cam follower 41 Holding jaw 42 Holding plate 51 Stopper 52 Claw 60 Swinging mechanism 61 Bearing 62 Rotary driving device 70 Upper transport device 71, 72, 73 Pulley 74 Drive pulley 75 Upper transport belt 80 Deceleration and delivery means 81a, 81b Acceleration / deceleration roller 82 Air cylinder 83 Acceleration / deceleration mechanism 86 Support rod 87a, 87b Gear 88a, 88b Arm 90, 90a Lower transport device 91 Guide plate 92, 93, 94 Pulley 95 Lower transport belt 96 Transport belt 100 Signature transport means S1, S2 Signature V Void

Claims (8)

[Claims] 1. A folding machine for receiving a signature formed by a parallel folding portion having a gripping cylinder, and for rotating the reduction cylinder at a speed lower than the peripheral speed of the gripping cylinder. A gap is provided between the cylinder and a signature conveying means for conveying the signature discharged from the gripping cylinder to the speed reduction cylinder in the gap, and a fold conveyed by the signature conveying means. And a deceleration sending means for feeding the shingle to the reduction drum while gradually decelerating the binding in a restrained state. 2. The decelerating delivery means is disposed on a path from a paper peeling position of the gripping cylinder to a gripper changing position of the reduction cylinder, and is capable of decelerating from a peripheral speed of the gripping cylinder to a peripheral speed of the reduction cylinder. The folding machine with a reduction drum of a rotary press according to claim 1, comprising a pair of upper and lower acceleration / deceleration rollers provided with a reduction mechanism. 3. The signature conveying means comprises an upper conveying device and a lower conveying device. The lower conveying device directs a signature discharged from a gripping cylinder to a grip changing position of the speed reduction cylinder. The folding machine with a reduction drum of a rotary press according to claim 1 or 2, further comprising a guide plate for guiding. 4. A drive pulley disposed below the guide plate and rotatably driven at the same peripheral speed as the gripper cylinder, and is stretched over a surface of the guide plate. The folding machine with a reduction drum of a rotary press according to claim 3, further comprising a transport belt. 5. The signature conveying means comprises an upper conveying device and a lower conveying device, wherein the upper conveying device includes an outer peripheral surface on the unloading side of the gripping cylinder, a surface of the guide plate, A conveyor belt is provided which is stretched over a pulley disposed above the plate, and which runs at the same peripheral speed as the gripper cylinder and conveys the signature along the guide plate. A folding machine with a reduction drum for a rotary press according to any one of claims 1 to 4. 6. The upper conveying device is provided with a swinging mechanism that causes the leading end of the signature conveyed by the conveying belt to reach the deceleration sending means, and causes the conveying belt to float before the deceleration feeding starts. The folding machine with a reduction drum of a rotary press according to claim 5, wherein 7. A guide plate for guiding the signature discharged from the gripper cylinder to the gripper changing position of the reduction cylinder, a lower transport device of the transport means, a surface of the guide plate and a gripper change of the reduction cylinder. 2. A transport belt stretched on a rotatable pulley disposed below the position so as to be at the same speed as the peripheral speed of the lower accelerating / decelerating roller of the decelerating and sending means. 7. The folding machine with a reduction drum of the rotary press according to 2, 5 or 6. 8. Above the mouth of the speed changer,
8. A guide belt according to claim 7, wherein a guide belt that is driven to rotate at the same peripheral speed as the speed reduction drum is provided, and a signature is held between the guide belt and the lower conveying device. Folding machine with reduction body for rotary press.