JP2702655B2 - Zigzag folding device for printing press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a zigzag folding apparatus for continuous paper in a form printing machine.

[0002]

2. Description of the Related Art It is generally known that a continuous sheet fed from a guide plate provided at the tip of a pendulum arm is folded in a zigzag manner by a spiral blade and a beater provided with a plurality of sheets.

[0003]

In the conventional zigzag folding of continuous paper, which has been used in the related art, human hands are required until several folds are made at the start of folding, which is dangerous. In addition, since the origami that is folded and formed on the discharge conveyor comes out in a sashimi shape, the origami is cut at a marked portion every predetermined number of sheets, and the paper is prepared and packed in a box. Therefore, labor was required for the cutting work and the preparation of the folded shape.

Furthermore, it was not possible to change the pendulum width during operation. However, it is often fine to fine-tune while driving,
For this reason, there is a disadvantage that the machine is stopped and adjustment is performed, which is inconvenient and impairs workability. In addition, since timing adjustment is required, there is an inconvenience that an operator is sharp at the beginning of the folding-out.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the present invention is provided with a single motor for a folding machine to enable full-automatic operation, furthermore, to automatically set the position of a spiral body and to set a pendulum arm. A swing width, a preset timing, and automatic cutting and automatic unloading of origami paper are provided for the purpose of reducing work and ensuring safety.

[0006]

In the folding operation, the vertical and horizontal spiral bodies 10 to 10c for folding the continuous paper of the folding section A are set by driving the motors 19 and 21, and the transport device C is returned to the raised position. Then, the continuous paper P is pulled out from the processing side by the pulling roll 4 and the nip roll 5, and is sent out to the guide plate 9 by a pair of sending-out rollers 8, 8a provided at the end of the pendulum arm 7, and is folded at a constant interval. And folded by the spiral bodies 10 to 10c and the beaters 11 to 11c. If the folding position does not match in this folding, the motor 19,
Fine adjustment is performed by using the spiral body 10 to 10c.
Fold in. The folded origami starts descending along the guide plate 39 while being received and supported on the transport device C provided below. Further, the length of movement of the continuous paper is detected from the integration of the number of pulses of a pulse oscillator provided in the printing press drive system, and the number of folds is detected by dividing the number of pulses by the number of pulses corresponding to the fold width. When the number of folds reaches a predetermined number, a signal is generated. This signal is input to the cutting command section, and the air cylinder 32 is further actuated by the signal to insert the blade body 36 near one end that has been instantaneously folded, and to rotate the screw shafts 53, 53 of the transporting device C and cut the cutting device. The screw shaft 30 of B rotates to lower the conveying device C along the guide plate 39, and the blade body 3
6 also descends, and when the number of origami sheets reaches a predetermined number, the blade 36
Cuts the folded position by pushing the blade body 36 by the motor 35. At the time of cutting, the central part of the origami block is pushed up by a roller and is kept horizontal, so that it is easy to cut. Further, the remaining origami is held by the blade body 36, and the origami is held on the transport device C and descends. When the origami is connected to the conveyor provided in the discharge section, the origami is discharged and the transport device C is raised again, and the lower portion of the origami is held. The blade body 36 is raised and supported to the position, and the blade body 36 is retracted and then raised to return to the original position, and this is repeated.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a zigzag folding apparatus in a printing press according to the present invention, which will be specifically described with reference to the drawings.

FIGS. 1 and 2 are a front view and a rear view, respectively, of a schematic view of the whole apparatus. As shown in FIG. The continuous paper P printed by the nip roll 5 pressed by the pressing force is pulled out, and the continuous paper P is provided on the tip end side of a pendulum arm 7 that is pivotally supported at one end via a pulling roll 4 and a guide roll 6 ahead of the nip roll 5. The continuous paper P is sent to a pair of feed rollers 8 and 8a, and the continuous paper P is guided by guide rollers 9 provided on the pendulum arm 7 by the feed rollers 8 and 8a, and the spiral bodies 10 and 10 of the lower folded portion A are fed.
a, 10b, 10c and beaters 11, 11a, 11b,
The sheet is fed back to a conveyer 12 of a transport device C provided below which is folded at a fixed interval of a perforation or the like provided on the continuous paper and is folded.

The length of movement of the continuous paper P is detected from the integration of the number of pulses of a pulse oscillator provided in the printing drive system, and the number of folds is detected by dividing the number of pulses by the number of pulses corresponding to the fold width. When the number of folds reaches a predetermined number, a signal is issued. This signal is sent to the control unit of the cutting device B arranged on the side of the folding unit A. Alternatively, the number of swings of the pendulum may be counted and a signal may be generated when the count reaches a predetermined value, or marking may be performed for each predetermined length of the continuous paper P, and a signal may be generated by detecting this marking.

The folded portion A is provided with the beaters 11 to 11c.
The spiral parts 10 to 10c provided with the fins are positioned, and the spiral parts 10 to 10c are positioned. The folded parts A are provided on the rails 13 and 13a attached along the frame 1 as shown in FIGS. To the carriages 14, 14a, 1
4b and 14c, respectively.
c are connected by guide rods 15, 15a on the front side 14 and 14a on the rear side 14b and 14c, respectively, and the spline shafts 16 and 16a are further arranged in parallel with the guide rods 15 and 15a for horizontal bearing. is there. Also, spline shafts 16, 16
a includes spiral bodies 10, 10 each having the beater.
a and the spiral body 10
The supporting members 17 to 17c from the guide rods 15,
The support members 17 to 17c are fixed to the guide rods 15 and 15a at set positions.

This is because the one-side paper edge position is used while being substantially fixed, and the position can be manually adjusted as needed.

Of course, the supports 17a, 17c are 17, 17b
It can be made movable as well.

In each of the spiral bodies 10 to 10c, a plurality of blades are provided in a spiral shape on a shaft, the shaft is rotatably supported by the spiral body, and a bevel gear is provided on the upper portion of the shaft to form the spline shaft. The rotation is transmitted by meshing with a bevel gear fitted to the gears 16 and 16a.

A bevel gear is attached to one end of each of the spline shafts 16 and 16a. Each bevel gear meshes with a bevel gear that is disposed along the frame 1 and has both ends slidingly fitted to a spline shaft 18 that is supported at both ends. I have. A bevel gear is provided at one end of the spline shaft 18, and a shaft 87 that is horizontally supported between frames is provided.
Mesh with the bevel gear provided at one end of the
Is provided with a bevel gear at an intermediate portion, and this bevel gear is mounted on a bearing body 85 mounted on a frame which rotates from a motor via a gear train.
The bevel gear at one end of the rotating shaft 86 is meshed, and the rotation of the rotating shaft 86 transmits the rotation to the spiral bodies 10 to 10c and the shaft 87.

Further, as shown in FIG. 5, the shaft 87 has guide plates 89, 89a movably supported by racks and pinions on support plates 88, 88a provided before and after between the frames.
The shaft 8 is connected to the pulleys 90 and 90a of
7, the guide shafts 89 and 89a are rotated.

The guide shafts 89 and 89a support the central portion of the continuous paper P sent from the guide plate 9, and place the continuous paper P at the beginning of folding and during operation on the spiral body blade while keeping the horizontal state. To do.

A spline shaft 92 bearing is disposed at a lower position of the spline shaft 18, and a bevel gear is provided at an end of the spline shaft 92.
And is engaged with a bevel gear in a drive box M driven by a left and right adjustment motor 19 attached to the drive box M.

The spline shaft 92 is mounted on the movable table 14,1.
Bevel gears 4a, 14b, and 14c are provided, respectively, and are engaged with bevel gears provided at ends of screw shafts 93 screwed to the supports 17 and 17b. The screw shaft 93 rotates, and the supports 17 and 17b screwed to the screw shaft 93 move in the paper width direction.

A screw shaft 20, which is formed by screwing left and right screws around the center, is screwed to the front and rear 14 and 14b of the moving tables 14 to 14c. ,
It is driven by a top and bottom adjustment motor 21 provided in the drive box M to adjust the top and bottom position.

The continuous paper P is sent by feed rollers 8 and 8a to a guide plate 9 provided on the pendulum arm 7, and below the guide plate 9, a central portion of the fed continuous paper P is supported.
A rotating guide shaft 8 on which a folded portion is placed on the spiral blade while keeping the continuous paper P at the start of feeding and in operation in a horizontal state.
9, 89a, and the continuous paper P is formed of each spiral body 10-1.
With the rotation of each spiral blade 0c, the spiral blades sequentially become horizontal and are vertically sent out onto the conveyor 12 of the lower conveying device C.

Next, the cutting apparatus B shown in FIGS. 6 to 8 will be described.

A support plate 2 attached to an end face of the frame 1
Guide shafts 23 to 23c are vertically installed at four end portions of 2, and further,
A drive shaft 2 extending left and right is provided at the center on the support plate 22.
4, 24a are provided with a drive casing 25 for transmitting rotation and a base plate 27 to which an elevating motor 26 is attached.
The drive box 25 on 7 is connected to an elevating motor 26 to drive the drive shafts 24 and 24a, respectively.

The ends of the drive shafts 24, 24a are connected to a gear box 29 on support pieces 28, 28 provided at the end of the support board 22 to drive a screw shaft 30 vertically mounted on the support piece 28. I do.

The screw shafts 30 and 30 are connected to the guide shafts 23 to
The screw is screwed into a nut body 32 provided on a lift board 31 guided by being inserted into and guided by 23c, and is raised and lowered by rotation of the screw shafts 30, 30.

The lifting board 31 has a longitudinally extending window hole 31 at the center.
The air cylinder 32 is located in the window hole 31a and attached to the lower surface of the lift board 31.

A moving plate 33 is positioned below the lifting plate 31. The moving plate 33 is connected to the lifting plate 31 via a ring guide 34a which is slidably fitted on a horizontally disposed guide shaft 34.

The moving plate 33 further includes the air cylinder 3
The connecting piece 33a connected to the rod 32a is mounted so that it can be instantaneously moved by the operation of the air cylinder 32.

The moving plate 33 has, at one end, a cutting motor 35 connected to the control unit 35a. The motor 35 is connected to a horizontally mounted screw shaft 35b which supports both ends.
5b is screwed with a movable body 37 having a base end portion of a blade body 36 formed with a saw blade-shaped cutting portion 36a on the distal end side. When a cutting signal is received by the control unit, the movable body 37 is rotated by the motor 35. Is moved and the blade body 36 is cooperated to cut.

Next, the transport device C below the folding portion A
Will be described with reference to FIGS.

The transport device C has one end of the left and right frames 38, 38 fitted on a guide plate 39 provided along the end of the frame 1 so as to be guided when ascending and descending. This frame 3
Rollers 42 and 43 are arranged on shafts 40 and 41 which are horizontally supported at both ends of the ends 8 and 38, respectively, and a plurality of belts 12a are hung respectively to form a conveyor 12. Further, guides 44, 44 are attached to the center portions of the frames 38, 38, respectively, in the vertical direction, and connecting pieces 47, 47 which are vertically supported by rollers 45, 46 disposed vertically in the guides 44, 44 are provided. When the conveyor 12 is hung on the rollers 42, 43, the conveyor 12 is hung through guide rollers 48, 49 and 50, 51 provided before and after the upper and lower rollers 45, 46 and the rollers 45, 46, respectively. Let me do it.

The lower portions of the connecting pieces 47, 47 which support the upper and lower rollers 45, 46 are connected to rods from the cylinders 52, 52 attached to the frames 38, 38 so that the rollers 45, 46 can be pushed up. .

The transport device C can be moved up and down along the guide plate 39, and the guide members 54, 54 screwed to the vertically installed screw shafts 53, 53 on the frame members 38, 38, respectively.
And the screw shafts 53, 53 are connected so as to be driven by a servomotor 55 having a control unit, and the transport device C is moved up and down by driving the servomotor 55.

At the lower position of the transport device C, a discharge conveyor device 56 to be arranged in parallel is located.
6, a belt is stretched, and a gear 58 is attached to one end of a shaft 57 provided at one end.
Gear 59 provided on the arm pivotally supported by
The gear 59 is slightly pushed up by a spring or the like while meshing, so that when the gear 60 attached to the shaft 41 provided on the one end side frame body 38 of the above-described transport device is lowered, the gear 59 is in the meshing state and the drive is transmitted. Become.

The belt is driven by driving a shaft provided at the center of the conveyor device 56 (not shown) by a motor. The tension of the belt is adjusted by a conveyor tensioning device provided at the other end of the conveyor device 56. In addition, a push-up device is provided at the end for raising and lowering the discharged origami block so that it can be easily taken out. In addition, a jack mechanism that can adjust the end height so that the sheet cut paper can be loaded on the stacker is also provided.

The pulling roll 4 for pulling out the continuous paper P is
The rotation of the servo motor 61 is transmitted from the main shaft via a harmonic differential 62 to the drive of the servo motor 61. Thus, the lead rate can be changed.

Next, a swing width adjusting device for the pendulum arm will be described.

A bearing 64 is mounted on the frame 1 side between the frame 1 and the auxiliary plate 63 mounted via a stay, and a hollow shaft 65 is provided in the bearing 64 for bearing. A flange 65a is integrally provided at one end of the hollow shaft 65, and a gear 66 is attached to the other end.

A protruding bearing body 67, 67a is provided at a corresponding end of the flange 65a.
The bearings 67 and 67a are provided with rotatably supported ends of a screw shaft 68.

The surface of the flange 65a has a crank 6
Sliding body 71 with rotating member 70 fitted with 9, 69a
Is fitted to the guide plate so as to be slidable. Also, the sliding body 71
A nut member 71a screwed onto the screw shaft 68 is attached to the sliding member 71. The rotation of the screw shaft 68 moves the sliding body 71, displacing the radius from the center of the crank 69, and
The pendulum width of the pendulum arm 7 to which the respective other ends of 69a are connected can be changed.

One end of the hollow shaft 65 is provided with an auxiliary plate 63.
And a bevel gear 74 attached to the other end of the rotating shaft 73. The bevel gear 74 meshes with a bevel gear 75 attached to the screw shaft 68. The rotation is transmitted by the rotation shaft 73.

The rotation of a single motor (not shown) is transmitted to a gear 76 provided on the hollow shaft 65 to a gear 76, and a gear 79 transmitted to a rotation shaft 77 meshing with the gear 76 via a harmonic differential 78. It is engaged with.

The rotating shaft 77 has a stepping motor 80
The rotation of the rotary shaft 77 causes the gear 81 transmitted via the harmonic differential 78 to mesh with the gear 72 and transmits the gear 81 to the gear 72 via the harmonic differential 78 by the rotation of the stepping motor 80, thereby causing the bevel gear 74 to rotate. , 75 to rotate the screw shaft 68 to move the sliding body 71 to change the radius of the crank and adjust the swing width.

That is, the rotation of the rotating member 70 is given by the rotation of the single motor to give a swing to the pendulum arm 7, and the swing width can be adjusted by the stepping motor 80 even during this rotation.

[0044]

As described above, according to the present invention, the swing width can be adjusted even during rotation by driving by a motor and another driving device and by a differential gear incorporated in the drive system, and the machine is not stopped. Therefore, work can be performed efficiently. Furthermore, the registration of the top and bottom of the origami paper and the registration of the left and right paper widths can be accurately and easily set to predetermined positions by driving the motors by the screw shaft and the spline shaft guide rod. In addition, since the transport device is provided with origami pushing means, it can be cut accurately because it is held horizontally while stacking origami, and there is no need for labor for packing products, so there is no fatigue. There are effects such as easy operation.

Further, the pendulum width can be adjusted during the operation, accurate folding can be performed, and fully automatic operation can be performed.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an embodiment of a zigzag folding device used for a printing press according to the present invention.

FIG. 2 is a rear view of FIG.

FIG. 3 is a plan view of a folded portion.

FIG. 4 is a front view as seen from line XX of FIG. 3;

FIG. 5 is a plan view of FIG. 3 for adjusting the top and bottom with the heater and the heater removed.

FIG. 6 is a plan view of the cutting device.

FIG. 7 is a front view of a part of FIG. 6 cut away;

FIG. 8 is a part of the side view of FIG. 6;

FIG. 9 is a sectional view showing a driving mechanism of a pulling roll.

FIG. 10 is a sectional view showing a pendulum arm amplitude adjustment mechanism.

FIG. 11 is an enlarged front view of the transfer device.

FIG. 12 is a sectional view taken along line YY of FIG. 11;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Frame 2,3,6,48,49 Guide roll 4 Pull roll 5 Nip roll 7 Pendulum arm 8,8a Delivery roll 9,39 Guide plate 10-10c Spiral body 11-11c Beater 12 Conveyor 13,13a Rail 14-14c Move Table 15, 15a Guide rod 16, 16a, 18, 92 Spline shaft 17-17c Support 20, 30, 35b Screw shaft 53, 68, 93 Screw shaft 21, 26, 35 Motor 55, 61, 80 Motor 22 Support plate 23 ２３23c, 34 Guide shaft 24, 24a Drive shaft 25 Drive box 27 Base plate 28 Support piece 29 Gear box 31 Lifting plate 31a Window hole 32 Air cylinder 33 Moving plate 33a, 47 Connecting piece 36 Blade body 37 Movable body 38 Frame body 40 , 41, 57, 87 Shafts 42, 43, 45, 46 Rollers 44 Guides 52 Da 56 Discharge conveyor 58, 59, 60, 66 Gear 72, 76, 79 Gear 62, 78 Harmonic differential 63 Auxiliary plate 64, 67, 67a, 85 Bearing 65 Hollow shaft 69, 69a Crank 70 Rotating member 71 Sliding body 71a Nut Member 73, 77, 86 Rotary shaft 74, 75 Bevel gear 88, 88a Support plate 89, 89a Guide shaft 90, 90a Pulley

Claims (1)

(57) [Claims] 1. A zigzag folding device for use in a printing press, comprising: a hollow shaft having a flange provided at one end with a screw shaft for moving a sliding member having a rotating body fitted with a crank connected to a pendulum arm; The radius of the crank can be freely changed by a differential gear that has been bearing and incorporated in the drive system, and that transmits the rotation to the helical shaft via a rotary shaft and a hollow shaft driven by a drive device different from this drive. A swing width adjusting device configured to adjust the swing width, a support rod including a beater and a spiral body by a guide rod, a spline shaft, and a screw shaft in which the interval in the moving direction of the continuous paper and the paper width are arranged in parallel. And left and right register adjustment devices that determine the position of the origami paper so that the origami paper can be moved to the folding position, a conveyor that receives and supports the origami paper, and a push-up means that pushes up the origami paper at the center of the conveyor. Along with, a vertically movable screw shaft along the frame to be able to move up and down, furthermore, a conveying device to return the cutting position after conveying the origami to the lower discharge conveyor device, a lifting plate that can be raised and lowered by the screw shaft, At the bottom of the lift board, a cylinder that moves momentarily is provided.
A cutting device comprising a moving plate provided with a screw shaft connected to a motor movably screwed with a movable body provided with a blade body for cutting a folded portion of the origami paper at the end is provided. Zigzag folding device used for printing press.