JPH0344910B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a foam rotary press (business form rotary printer), and more particularly to a foam rotary press that prints and processes business forms using a web.

This type of form rotary press is equipped with a paper feed section, a printing section, a processing section, a paper discharge section, and a drive device and control device for these. , a printing cylinder is provided, and the processing section includes a punching device having a pin wheel and a die wheel paired therewith, a horizontal sewing machine device having a sewing machine cylinder, and a take-up unit that takes up the web after printing and processing and sends it to the paper discharge section. It is known that rollers are provided and a zigzag folding machine is provided in the paper discharge section.

In such a form rotary press, it is necessary to adjust the vertical register of the printing position and the processing position before starting operation. Toroga: In the case of conventional form rotary presses, the top and bottom registers were manually adjusted, requiring many trial prints and adjustments before starting operation, which greatly reduced the time required to prepare for operation. It was getting long.

Vertical registration adjustment in a form rotary press is generally necessary when the size (vertical length) of the business form to be printed changes or when the thickness of the paper used changes. In addition, particularly in conventional form rotary presses, as will be explained in detail later, troublesome vertical register adjustment is required even when the paper feed speed changes.

On the other hand, in a multicolor printing press, an angle detector is installed on the rotating shaft of the plate cylinder of each printing unit, and a motor is installed between the rotating shaft of the plate cylinder and the drive shaft for vertical registration adjustment. A device equipped with a differential device has been proposed (Japanese Patent Application Laid-Open No. 1986-
(See No. 30863).

If such a differential device for vertical register adjustment is applied to a form rotary press, vertical register adjustment can be easily performed, but as explained next, the paper feed speed may change. However, there is a problem in that it is difficult to obtain a high-quality product because of the need for troublesome vertical orientation adjustment.

Conventional foam rotary presses have a paper feed section, printing section,
The rotating bodies of the processing section and the paper ejecting section are driven by a single drive device, and by changing the rotation speed of the drive shaft of the drive device, the rotation speed of the rotating bodies of each section can be changed. , the rotation speed ratio and surface speed ratio between these rotating bodies are always constant.

In particular, regarding the feed roller of the paper feeding section and the take-up roller of the processing section, these are directly connected to the drive shaft by gears, etc., and the reduction ratio between the drive shaft and the feed-out roller and the gap between the drive shaft and the take-up roller are The reduction ratios of each are constant. Therefore,
Although the magnitude of the rotational speed of the delivery roller and the take-up roller can be changed by changing the rotational speed of the drive shaft, the rotational speed ratio and surface speed ratio of the delivery roller and the take-up roller are always constant.

In conventional foam rotary presses, the rotational speed ratio and surface speed ratio of the delivery roller and take-up roller are kept constant as described above, and in order to apply a certain amount of tension to the paper between the delivery roller and take-up roller, The surface speed of the take-off roller is slightly greater than the surface speed of the delivery roller so that a slight slip occurs between the take-off roller and the paper.

However, when doing this, the gap between the take-up roller and the paper differs between when the feed roller and take-up roller are rotated at low speed and the paper is fed at low speed, and when the feed roller and take-up roller are rotated at high speed and the paper is fed at high speed. The size of the slip changes. That is, at low speeds the slip is small and at high speeds the slip is large. This has been confirmed through experiments, and is thought to be because there is sufficient time for the paper to slip at low speeds, but not enough time for the paper to slip at high speeds.

As the size of the slip changes as described above between low speed and high speed, the tension of the paper changes,
Misalignment occurs in the vertical register of the printing position and processing position. For example, by adjusting the vertical orientation at low speed,
If you continue to drive at high speed, your vertical orientation will become misaligned. For this reason, it is necessary to adjust the vertical register depending on the paper feed speed, but this adjustment is troublesome and
Requires skill.

On the other hand, even if the feed roller rotates at a constant speed, if the thickness of the paper used changes, the speed of the paper fed out from the feed roller will change.

If the feed roller is rotating at a constant speed,
The surface speed of rotating bodies such as the plate cylinder, pin wheel, die wheel, and sewing machine cylinder in the processing section is constant. Therefore, if the paper feeding speed changes depending on the thickness of the paper, the speed of the rotating bodies in the processing section is constant. There is a difference between the surface speed of the paper and the speed of the paper, which changes the printing vertical length, the pitch of the punching holes by the punching device, and the pitch of the horizontal perforation. for example,
As the paper thickness increases, the speed of the paper increases accordingly and becomes higher than the surface speed of the rotating bodies in the printing and processing sections.For this reason, compared to thin paper, the printing vertical length and the sprocket hole and The pitch of the horizontal sewing machine becomes longer.

To eliminate this inconvenience, conventionally, the rotational speed ratio of the rotating bodies in each section was set so that the paper speed and the surface speed of the rotating bodies in the printing section and processing section were equal when the paper was at its thinnest. When the paper thickness increases, the braking force on the paper feed shaft to which the web in the paper feed section is fixed is increased, forcing a slip between the feed roller and the paper, and the speed of the paper decreases in the printing section. and the surface speed of the rotating body in the processing section.

However, if you do this, as the paper thickness increases, the slip between the feed roller and the paper will increase, compared to when the paper thickness is thinner.
The difference between the surface speed of the take-off roller and the paper delivery speed increases, resulting in increased tension between the delivery roller and the take-off roller, and increased slip between the take-off roller and the paper.

When the tension of the paper increases in this way, the distortion of the paper during printing and processing increases, making it easier for the product to deform over time, making it impossible to obtain a high-quality product.

Furthermore, as the slip between the take-up roller and the paper increases, the change in the size of the slip due to the speed of the paper increases as described above.

Furthermore, the paper speed is indirectly adjusted by the braking force, which is difficult to adjust.

An object of the present invention is to provide a form rotary press that solves all of the above problems, eliminates the need for troublesome vertical registration adjustment when the paper feed speed changes, and can produce high-quality products. The form rotary press according to the present invention includes a paper feed section, a printing section, a processing section, a paper discharge section, and a drive device and a control device for these. , a plate cylinder is provided, and the processing section includes a punch device having a pin wheel and a die wheel paired therewith, a horizontal perforation device having a perforation cylinder, and a take-up unit that takes up the web after printing and processing and sends it to the paper discharge section. In a form rotary press that is equipped with rollers and a zigzag folding machine in the paper discharge section, a differential for adjusting the speed of the feed roller is provided with a motor between the feed roller and the drive device whose speed is controlled by a control device. A device is provided, and rotation angle detectors are provided for each of the rotation axis of the plate cylinder, the rotation axis of the wheel of the punch device, the rotation axis of the sewing machine barrel, and the drive rotation axis of the zigzag folding machine. A vertical register adjustment differential device including a motor controlled by a control device is provided between the take-up roller and the drive device, a slip device is provided between the take-up roller and the drive device, and the control device is connected to an external Equipped with means for individually controlling the motor of the differential device for adjusting the feed roller speed, the motor of the differential device for vertical register adjustment, and the slip device based on numerical commands from or internally set. It is.

Embodiments of the present invention will be described below with reference to the drawings. In this specification, front, rear, left, and right refer to the direction of travel of the web.

The drawing shows an offset form rotary press, which, as shown in FIGS. 1 and 2, has a paper feed section 1, an offset printing section 2, a back carbon printing section 3, a processing section 4, and a paper discharge section. 5, a drive device 6, and a control device 7.

The drive device 6 includes one drive motor 8, a drive shaft 9 that always rotates at a constant speed, and worm reducers 10 provided at multiple locations on the drive shaft 9. The drive shaft 9 is formed by alternately connecting the worms 11 of the plurality of reduction gears 10 and the hollow shafts 12 of the plurality of reducers 10 to form a straight line, and extends horizontally in the front-rear direction. Then, as will be described later, the rotation of the worm gear 13 of each speed reducer 10 is transmitted to each part of the foam rotary press. In the case of a conventional foam rotary press, the rotation of the drive shaft is transmitted to each part via bevel gears at a constant speed or at a slightly increased speed, so the drive shaft rotates at low speed and high torque. However, in the case of this form rotary press, the rotation of the drive shaft 9 is transmitted to each part at a reduced speed, so the drive shaft 9 rotates at a higher speed and with lower torque than in the conventional machine.

The control device 7 controls the entire foam rotary press, and although not shown, it includes a central control panel 240.
and a plurality of individual control panels 241 appropriately arranged in each part of the form rotary press. The central control board 240 includes a microcomputer 242,
Various operation switches 243 and a display 244 are provided, and the individual control panel 241 is provided with various operation switches 245 and a display 246.

The paper feed section 1 supplies a web 14 to the offset printing section 2.
It is a device that continuously sends water at a constant tension and at a constant speed, and is constructed as follows (see Figs. 3 to 5).

At the bottom of the rear side of the frame 15 of the paper feed section 1, there are
A pair of left and right arms 17 are provided which are vertically rotated by a pair of air cylinders 16. A paper feed shaft 18 to which the web 14 is fixed is rotatably supported between the rotating ends of the left and right arms 17.
A powder brake (not shown) is provided at one end of the motor 8. The left and right arms 17 rotate downward during the installation work of the web 14, and during operation, rotate upward as shown in FIG. 3, and stop when they hit the adjustable stopper 19 attached to the frame 15. are doing.

A feed roller 20 is provided at the front of the frame 15.
and a plurality of rollers 21, 22, 23, 24, 25,
26 is rotatably supported, the web 14 is supported by the roller 21, the dancer roller 28 of the tension adjustment device 27,
roller 22, feed roller 20, roller 23,
24, an edge guider 29 for stopping the meandering of the paper 14, and rollers 25 and 26 in this order.
A plurality of thin rollers 30 supported by the frame 15
A large number of endless rubber belts 31 are hung on the roller 20 , and these belts 31 feed the web 14 to the roller 20 .
It is being forced on.

As shown in detail in FIG. 4, the delivery roller 20 is connected to the worm gear 13 of the drive reduction gear 10 via a timing belt 32 and a differential device 33 for adjusting the delivery roller speed. The differential device 33 includes a servo motor 34 whose speed is controlled by the control device 7, and rotates the delivery roller 20 at a rotation speed corresponding to the rotation speed of the motor 34 and the rotation speed of the worm gear 13. motor 34
The rotational speed of can be changed to any positive or negative value with respect to zero. Even if the drive shaft 9, that is, the worm gear 13 rotates at a constant speed, the motor 34
By changing the rotation speed of the feed roller 2
0 changes, and while the motor 34 stops or rotates at a constant speed, the delivery roller 20 also rotates at a corresponding constant speed. The differential device 33 is provided to always feed out the web 14 at a constant speed even when the thickness of the web 14 used changes. Assuming that the feed roller 20 is always rotated at a constant speed, when the paper thickness of the web 14 changes, the web 14 that is wound around the feed roller 20 and passes through this portion will change.
, that is, the feeding speed of the web 14 changes. Therefore, in order to always feed out the web 14 at a constant speed, it is necessary to change the rotation speed of the feed roller 20, that is, the rotation speed of the motor 34, depending on the paper thickness. The rotational speed of the motor 34 can be set directly by the operator using a numerical command from the control device 7 (hereinafter simply referred to as numerical command), or by pressing the automatic adjustment button on the control device 7 before starting operation. It can also be automatically set by the control device 7 as shown in FIG. That is, the control device 7 controls the paper thickness and the feed roller 20 in order to keep the feed speed of the web 14 constant.
When the automatic adjustment button is pressed, the rotation speed of the motor 34 is set based on the paper thickness set in the control device 7, and the rotation speed of the motor 34 is stored. Inside is motor 3
4 at this speed. There is a certain relationship between the paper thickness and the rotation speed of the feed roller 20, that is, the rotation speed of the motor 34, in order to keep the feeding speed of the web 14 constant, and by storing this relationship in the control device 7, Based on the paper thickness set in the control device 7, it is possible to automatically set the rotation speed of the feed roller 20, that is, the rotation speed of the motor 34, in order to keep the feed speed of the web 14 constant. In this way, the rotational speed of the motor 34, that is, the rotational speed of the feed roller 20, can be automatically changed according to the paper thickness of the web 14, so that the web 14 is always fed to the offset printing section 2 at a constant speed. The paper thickness is determined by the control device 7 every time the paper thickness of the web 14 used changes.
is set to In addition, the paper thickness is also determined when the target business form is determined, so the paper thickness is stored in the control device 7 for each business form, and the paper thickness is automatically set by simply selecting the type of business form. You can also make it so that Note that it is also possible to change the rotational speed of the motor 34, which is automatically set as described above, by a numerical command before or during operation.

As shown in detail in FIG. 5, the tension adjustment device 27 includes a shaft 35 rotatably supported by the frame 15.
and a pair of relatively long swinging arms 36 on the left and right, one end of which is fixed to each end of the shaft 35,
A dancer roller 28 is rotatably supported between the rotating ends of the left and right arms 36 and on which the web 14 is hung; a relatively short lever 37 whose one end is fixed to one end of a shaft 35; It includes two position-adjustable stoppers 38 attached to the frame 15 to regulate the swing width, and an air cylinder 39 provided between the swing end of the lever 37 and the frame 15. Although not shown, the chamber of the air cylinder 39 on the side to which pressure is applied due to the tension of the paper roll 14 is connected to an air source via a pressure regulating valve. Therefore, the air pressure in this chamber is kept constant, and since the air has no inertial force, the tension on the web 14 is kept constant even if the position of the dancer roller 28 changes, which is different from the conventional method using a spring or weight. Unlike the tension adjustment position shown in FIG. And relatively short lever 3
Since one end of the air cylinder 39 is attached to the swinging end of the air cylinder 7, even if the position of the dancer roller 28 changes, the amount of movement of the rod of the air cylinder 39 is very small. Also, by changing the settings of the pressure regulating valve and changing the air pressure of the air cylinder 39,
The tension of the web 14 can be changed easily and arbitrarily.

Details of the offset printing section 2 are shown in FIGS. 6 to 12, and as shown in FIG.
1, a dampening device 42, and a printing cylinder exchange unit 43 that is detachably attached to the frame 40.
It is composed of

The inking device 41 includes an ink fountain 44, an ink fountain roller 45, and an arm 4 for driving rotation of the ink fountain roller.
6. Ink fountain roller rotation amount adjustment stopper 47;
Ink calling roller 48, a plurality of kneading rollers 4
9, 50, two ink forming rollers 51, 51,
It is equipped with a cleaning nozzle 53 and a doctor 54 (see FIG. 6). The pot roller 45 is attached to one end of an arm 46 via a one-way clutch (not shown), and the arm 46 rotates up and down about the central axis of the pot roller 45, and the arm 46 rotates downward. When moving, the pot roller 45 rotates by a constant amount. The calling roller 48 is arranged between the pot roller 45 and the kneading roller 49 in the following manner. That is, one end of the switching lever 55 is connected to the shaft 5.
6, and one end of the transfer lever 57 is attached to the rotating end of the switching lever 55 so that it can rotate about the shaft 58, Lever 5
A calling roller 48 is attached to the swinging end of the roller 7. The intermediate part of the switching lever 55 and the frame 40
A switching lever driving air cylinder 59 and a shifting lever driving air cylinder 60 are provided between the transfer lever 57 and the intermediate portion of the transfer lever 57 and the frame 40, respectively. The switching lever driving air cylinder 59 switches the position of the switching lever 55, that is, the position of the central axis of rotation 58 of the transfer lever 57, during operation and when cleaning the inking device 41. During operation, the switching lever 55 is stopped at the position shown in FIG.
contacts the pot roller 45 and the kneading roller 49 alternately, and transfers a constant amount of ink from the pot roller 45 to the kneading roller 49. Furthermore, when cleaning the inking device 41, the switching lever 55 stops at a position slightly rotated clockwise in FIG.
9 at the same time. 2 wear rollers 5
The left and right ends of the levers 1 and 52 are respectively attached to the rotating ends of two sets of levers 61 and 62 that can be rotated separately about the central axis of rotation of the kneading roller 49 that these levers 61 and 52 are in contact with. , 62 and the frame 40 are provided with air cylinders 63 and 64, respectively (see FIG. 11). and,
During operation, these forming rollers 51, 52
It is located in a fixed operating position as shown in FIGS. 6 and 11.

The dampening device 42 includes a water sprayer 65 and a plurality of rollers 66, 67, 68, 69 (see FIG. 6). Both left and right ends of the wet roller 69 are attached to the rotating ends of a lever 70 that can rotate around the rotation center axis of the roller 68 with which it comes in contact, and an air cylinder is connected between the lever 70 and the frame 40. 71 (see FIG. 11).

On the frame 40 of the offset printing section 2, there is one ink forming roller 5 positioned at the operating position.
1 (see FIGS. 7 and 1). This gear 7
2 has a pitch diameter approximately equal to the outer diameter of the ink forming roller 51, and can be rotated separately from the ink forming roller 51. The printing cylinder driving gear 72 is connected to a timing belt 73 as shown in detail in FIG.
It is also connected to the worm gear 13 of the drive device reducer 10 via a vertical register adjustment differential device 33 similar to that of the paper feed section 1 .

The printing cylinder exchange unit 43 includes a cart 76 having a plurality of casters 75 on the lower surface of a horizontal plate 74, and a pair of opposing vertical side plates 78 on the left and right sides of a horizontal bottom plate 77 placed directly above the horizontal plate 74. A plate cylinder 80, a blanket cylinder 81, and an impression cylinder 82 are rotatably supported between the side plates 78 of the support 79. Trolley 7
The horizontal plate 74 of No. 6 and the left and right sides of the printing cylinder support 79 are connected by a vertical connecting plate 83, whereby the printing cylinder support 79 is integrally fixed above the carriage 76.

As shown in FIGS. 8 and 9, rearwardly protruding arms 84 are fixed to the outer surfaces of the left and right side plates 78 of the printing cylinder support 79, and rollers 85 are attached to the rear ends of each arm 84. ing. On the other hand, horizontal fixing fittings 86 and air cylinders 8 are provided on both outer surfaces of the frame 40 corresponding to this.
7, swinging arms 88 that rotate up and down are arranged vertically, and a semicircular notch 89 having an inner diameter slightly larger than the outer diameter of the roller 85 is provided above the portion of each arm 88 near the swinging end. It is provided. The printing cylinder exchange unit 43 is fixed to the frame 40 in the following manner. That is, using the caster 75, first move the exchange unit 43 slightly forward of the frame 40 from one of the left and right sides, and then the rear end surfaces of the both side plates 78 touch the front end surface of the frame 40, and the rollers 85 on both sides touch the frame 40. 4
The replacement unit 43 is moved rearward so that it enters between the fixing metal fitting 86 of 0 and the swinging arm 88 that is rotating downward, and the arm 88 is rotated upward and the front part of the notch 89 and the The roller 85 is sandwiched and fixed between the fixing fittings 86. As a result, both side plates 78 of the printing cylinder support 79 are brought into pressure contact with the front end surface of the frame 40, and the replacement unit 4
3 is slightly raised, and the replacement unit 43 is always fixed at a fixed position in the front of the frame 40. Then, the replacement unit 43 is removed from the frame 40 by the reverse procedure to that described above. In addition, the vertical side plates 91 and the horizontal top plate 92 on the left and right sides of the bed 90 provided at the bottom of the frame 40 are provided with the minimum necessary size to avoid interference with the exchange unit 43 that moves in the left-right direction and front-rear direction when the exchange unit 43 is attached or detached. The top plate 92 of the bed 90 is located between the horizontal plate 74 of the carriage 76 and the horizontal bottom plate 77 of the printing cylinder support 79 when the exchange unit 43 is in front of the frame 40. It's getting old.

The plate cylinder 80 is mounted on both side plates 7 of the print cylinder support 79, as shown in detail in FIGS. 7-9 and 11.
8, and is fixed to a rotating shaft 94 that is supported rotatably and movably from side to side. A plate cylinder 80 is attached to the tip of the rotating shaft 94 that protrudes outward from one side plate 78.
A gear 95 having a pitch diameter approximately equal to the outer diameter of is fixed. When the replacement unit 43 is fixed to the frame 40, the plate cylinder 80 comes into contact with the two inking rollers 51 and 52 in the operating position with a predetermined pressure, and the gear 9 of the plate cylinder 80
5 is adapted to mesh with the printing cylinder drive gear 72 of the frame 40. In addition, a short cylindrical body 9 is attached to the tip of the rotating shaft 94 that protrudes outward from the other side plate 78.
8 is fixed, and a pair of collars 99 having approximately the same outer diameter as the plate cylinder 80 are integrally formed at both left and right ends of the short cylindrical body 98. A protrusion 96 is formed at one location on the outer periphery of one collar.

The frame 40 of the offset printing section 2 is provided with a lateral movement device 100 for slightly moving the plate cylinder 80 in the left-right direction as required (see FIGS. 8 and 9). This device 100 includes a guide rod 101 fixed to a frame 40 and horizontally protruding outward in the left-right direction, a feed screw 102 rotatably supported by the frame 40 so as to be parallel to the guide rod 101, and a guide rod 101. A moving block 103 is fitted to the feed screw 102 so as to be movable left and right, and a moving block 103 is screwed into the feed screw 102.
A roller 105 is rotatably attached to the tip of a shaft fixed to the shaft 3 and enters between the right and left collars 99 of the short cylindrical body 98, and a feed screw driving servo motor 106 controlled by the control device 7. The outer diameter of the roller 105 is slightly smaller than the mutual distance between the left and right collars 99. Then, in response to a numerical command or a command from a manual operation switch, the motor 106 rotates, moving the moving block 103 and the rollers 105 to the left and right, and as a result, the plate cylinder 80 also moves to the left and right. Note that the horizontal position of the plate cylinder 80 is numerically displayed on the control device 7. Further, a proximity switch 97 corresponding to the protrusion 96 of the collar 99 is attached to the tip of the arm fixed to the moving block 103.
are attached, and these constitute a rotation angle detector 104 of the plate cylinder 80.

Blanket cylinder 81 is mounted on printing cylinder support 79, as shown in detail in FIGS. 7-9 and 11.
A rotating shaft 10 rotatably supported by both side plates 78 of
It is fixed at 7. A gear 108 having a pitch diameter approximately equal to the outer diameter of the blanket cylinder 81 is fixed to one end of the rotating shaft 107 and is constantly meshed with the gear 95 of the plate cylinder 80.

The impression cylinder 82 is mounted between the side plates 78 of the printing cylinder support 79 via an impression cylinder adjustment device 109, as shown in detail in FIGS. 6, 9 and 10. The impression cylinder adjustment device 109 is for adjusting the distance between the axes of the blanket cylinder 81 and the impression cylinder 82 in accordance with changes in the paper thickness of the web 14 used, and is configured as follows. ing. That is, disk-shaped eccentric members 110 are rotatably fitted into circular holes formed in both side plates 78, and on the inner surface of each member 110, upper ends of eccentric member rotation arms 112 extending vertically are provided. Each part is fixed. Both left and right ends of a rotating shaft 113 are supported at a portion eccentric from the center of each eccentric member 110 by a predetermined distance.
is fixed. A gear 115 having a pitch diameter approximately equal to the outer diameter of the impression cylinder 82 is fixed to the tip of this rotary shaft 113 that protrudes outward from the eccentric member 110 on one side.
It is interlocked with 8. Arm 1 for rotating each eccentric member
An adjustment rod 11 extending in the front-rear direction is provided at the lower end of the rod 12.
A male threaded portion 117 formed at the middle portion of 6 is screwed. The front and rear of each adjustment rod 116 are connected to front and rear guides 118, 11 fixed to the inner surface of the side plate 78.
The adjustment rod 116 protrudes forward and backward through a relatively large hole 9, and an adjustment knob 1 is provided at the front end of each adjustment rod 116.
12 are integrally formed. Also, each adjustment rod 1
A compression coil spring 123 is fitted in a portion between the guide 118 and the arm 112 on the front side of the arm 112 to always bias the lower end of the arm 112 backward. On the other hand, a shaft 124 extending left and right is rotatably supported at the bottom of the frame 40.
One end is connected to a servo motor 125 for adjusting the impression cylinder. Worms 126 are provided on the left and right sides of this shaft 124, and two worm gears 127 that mesh with these worms 126 are attached to the frame 4.
0 and is rotatably supported. A female threaded portion is formed at the center of each worm gear 127, and a male threaded portion 129 formed at the intermediate portion of the two push rods 128 extending back and forth is screwed into these female threaded portions. Each push rod 128 is supported by the frame 40 so as to be able to move back and forth but not rotate.
As the motor 125 rotates, the left and right push rods 128 move forward and backward in synchronization. Printing cylinder exchange unit 4
3 is fixed to the frame 40, the rear end surfaces of the left and right adjustment rods 116 are pressed by the springs 123 against the front end surfaces of the corresponding push rods 128, respectively. In this state, when the motor 125 rotates and the push rod 128 moves back and forth, the adjustment rod 116 moves back and forth, causing the arm 112 and the eccentric member 110 to rotate, and as a result, the impression cylinder 82 rotates. A shaft 113 rotates up and down about the center of the eccentric member 110, and rotates around the rotation shaft 107 of the blanket body 81.
The distance between the rotating shaft 113 of the impression cylinder 82 and the rotating shaft 113 changes. There is a certain relationship between this distance between the axes and the amount of movement of the push rod 128, that is, the amount of rotation of the motor 125. The control device 7 stores the relationship between the paper thickness and the rotation amount of the inter-axis distance motor 125, and by pressing the automatic adjustment button before starting operation, the paper thickness set in the control device 7 can be adjusted. The motor 125 is rotated by an amount corresponding to the amount, and the distance between the axes is automatically adjusted. In addition, the above-mentioned adjustment of the center distance can also be performed using numerical commands, and it is also possible to change the center distance that has been automatically adjusted as described above using numerical commands before or during operation. be.

This form rotary press is equipped with a plurality of printing cylinder exchange units 43, which can be used by replacing them as necessary. FIG. 12 shows an exchange unit 43 fixed to the frame 40, which includes a plate cylinder 80, a blanket cylinder 81, and an impression cylinder 82 having different dimensions from those shown in FIG. The position of the plate cylinder 80 of each of the plurality of exchange units 43 is such that when the exchange unit 43 is fixed to the frame 40, it contacts the two inking rollers 51 and 52, which are positioned at a constant operating position, with a predetermined pressure. A gear 95 having a pitch diameter approximately equal to the outside diameter of the plate cylinder 80 is fixed to the rotating shaft 94 of the plate cylinder 80, and a gear 95 having a pitch diameter approximately equal to the outer diameter of the plate cylinder 80 is fixed to the rotating shaft 94 of the plate cylinder 80, and a gear 95 having a pitch diameter approximately equal to the outer diameter of the plate cylinder 80 is fixed to the rotating shaft 94 of the plate cylinder 80, and Each trunk 81, 8
Gear 10 having a pitch diameter approximately equal to the outer diameter of gear 2
8,115 are fixed respectively. Therefore, even when replacing the replacement unit 43, simply fixing the replacement unit 43 to be used next at a fixed position on the frame 40 as described above will remove the two ink forming rollers 51 and 52 from a fixed operating position. The plate cylinder 80 comes into contact with a predetermined pressure, and its gear 95 meshes with the printing cylinder drive gear 72, making it necessary to change the position of the ink form roller every time the size of the plate cylinder changes, as in the past. There is no. Note that when the contact pressure with the plate cylinder 80 changes due to wear of the ink forming rollers 51, 52, the contact pressure is adjusted by slightly moving the ink forming rollers 51, 52 using the air cylinders 63, 64. Also, by replacing the exchange unit 43, the plate cylinder 80
Even if the dimensions of the plate cylinder lateral movement device 100 are changed,
The outer diameter of the collar 99 is made approximately equal to the outer diameter of the plate cylinder 80 so that the roller 105 can enter between the left and right collars 99 of the short cylindrical body 98 fixed to the rotating shaft 94 of the plate cylinder 80. , the roller 105 moves from the side of the ink form roller 51 to the left and right collars 99.
It is starting to move in between.

In the offset printing section 2, the rotation of the worm gear 13 of the drive gear reducer 10 is transmitted to the inking device 41 and the dampening device 42 via the differential device 33 and the timing belt 73 as described above, and The rotation of this gear 72 is further transmitted to the gears 95 and 10.
8,115 for plate cylinder 80 and blanket cylinder 8
1 and the impression cylinder 82.

When cleaning the inking device 41, the two inking rollers 5 are cleaned by air cylinders 63 and 64.
1 and 52 from the plate cylinder 80, and the switching lever 55 is rotated clockwise in FIG. Then, while rotating all the rollers 45, 48 to 52 in this state, the cleaning liquid is supplied to them from the nozzle 53. Since the calling roller 48 is in contact with the pot roller 45 and the kneading roller 49 at the same time, the cleaning liquid is transferred to the pot roller 45.
Inking device 41 from to applicator rollers 51 and 52
is transferred to all rollers 45, 48-52, and all of their surfaces are cleaned. There is therefore no need for separate cleaning of the pot roller, as in conventional inking machines in which the call-up roller only contacts the pot roller and the kneading roller alternately.

During operation, two inking rollers 51, 5
2 is positioned in the operating position and brought into contact with the plate cylinder 80, and the transfer lever 57 is swung by the transfer lever driving cylinder 60 while the switching lever 55 is rotated counterclockwise in FIG. The calling roller 48 is brought into contact with the pot roller 45 and the kneading roller 49 alternately. The paper 14 sent from the paper feed section 1 to the offset printing section 2 passes through a roller 130 supported by a frame 40, and then passes between a blanket cylinder 81 and an impression cylinder 82, during which printing is performed. The back carbon is sent to the printing section 3.

As shown in detail in FIG. 13, the back carbon printing section 3 includes an ink tank 131, a former roller 13,
2, an anilox roller 133, a plate cylinder 134, an impression cylinder 135, and a cooling roller 136.

Both left and right end portions of the anilox roller 133 are rotatably supported by a frame 137.

The original roller 132 is installed in the frame 1 as follows.
It is attached to 37. That is, frame 1
A disc-shaped eccentric member 138 is rotatably fitted into a circular hole formed on both the left and right sides of the arm 13 , and each member 138 has an arm 13 extending approximately horizontally in the front and back directions.
The rear end of 9 is fixed. Each eccentric member 138
Both left and right ends of a rotary shaft 140 are supported at a portion slightly eccentric from the center of the rotary shaft 140, and the original roller 132 is fixed to this rotary shaft 140. The frame 137 is provided with an adjustment stopper 141 that contacts the upper surface of the front end of the arm 139, and an air cylinder 142 is provided between the front end of the arm 139 and the frame 137 below this. The arm 139 is pressed against a stopper 141 by this cylinder 142, and by slightly moving the stopper 141 up and down, the arm 139 and the eccentric member 138 are slightly rotated, and the original roller 132 and the anilox roller 133 are rotated slightly. The distance between the axes can be adjusted.

The impression cylinder 135 has both left and right ends fixed to a rotating shaft 143 supported by the frame 137. Blocks 144 are rotatably attached to both ends of this rotating shaft 143, and a rotating shaft 145 extending left and right extends between these blocks 144. Bevel gears 146 are provided at two locations on this rotating shaft 145, and one block 144 is provided with a bevel gear 146 at two locations on this rotating shaft 145.
A servo motor 147 connected to one end of 5 is attached. A feed shaft 148 passing through each block 144 is attached so that the intermediate portion can rotate but not move in the axial direction, and a bevel gear 149 provided at one end of each feed shaft 148 is attached to the rotating shaft. 145 and two bevel gears 146 mesh with each other. A male threaded portion 150 formed at the other end of each feed shaft 148 is screwed into a female threaded portion formed on a plate cylinder support block 151, and a guide rod 152 fixed to this block 151 in parallel with the feed shaft 148 is attached. It is movably inserted into a guide hole formed in a block 144 on the impression cylinder 135 side. Both left and right ends of a rotating shaft 153 are rotatably and horizontally movably supported by each plate cylinder support block 151, and a plate cylinder 134 is fixed to this rotating shaft 153.
Then, as the motor 147 rotates, the plate cylinder support block 151 moves toward and away from the block 144 on the impression cylinder 135 side, and as a result, the distance between the axes of the impression cylinder 135 and the plate cylinder 134 decreases. Change. This adjustment of the distance between the axes is performed in the same manner as in the case of the impression cylinder adjustment device 109 of the offset printing section 2. Further, an air cylinder 154 is provided between the plate cylinder support block 151 and the frame 137, and the cylinder 154 allows the plate cylinder 134 to contact the anilox roller 133 with a predetermined pressure. Although not shown, the impression cylinder 13
A gear having a pitch diameter approximately equal to the outer diameter of the impression cylinder 135 is fixed to the rotating shaft 143 of No. 5, and
Gears having a pitch diameter approximately equal to the outer diameter of the plate cylinder 134 are fixed to the rotating shaft 153 of the plate cylinder 134, and these gears mesh with each other. Further, a plate cylinder lateral movement device and a rotation angle detector similar to those in the offset printing section 2 are provided at one end of the rotating shaft 153 of the plate cylinder 134 and at the plate cylinder support block 151 on one side. This form rotary press includes a plurality of plate cylinders 134 having mutually different dimensions,
These can be replaced and used as needed.

Both ends of the cooling roller 136 are rotatably supported by a frame 137. The cooling roller 136 has a hollow cylindrical shape with both left and right ends sealed, and a large number of cooling air ejection holes (not shown) are formed in the entire circumferential wall thereof. Cooling air supplied into the cooling roller 136 by appropriate means is blown out from these holes.

The rotation of the worm gear 13 of the drive device reducer 10 is transmitted to the original roller 1 via the same vertical orientation adjustment differential device 33, gear, and timing belt.
32, anilox roller 133, plate cylinder 134,
It is transmitted to the impression cylinder 135 and the cooling roller 136. The frame 137 includes rollers 155, 156,
157 is rotatably supported, and the paper 14 sent from the offset printing section 2 to the back carbon printing section 3 passes through rollers 155 and 156, and then passes between the plate cylinder 134 and the impression cylinder 135. Furthermore, it is sent out to the processing section 4 through the cooling roller 136 and the roller 157.

As shown in FIG. 14, the processing section 4 is provided with a punch device 158, a slitter device 159, a vertical perforation device 160, a first horizontal perforation device 161, and a second horizontal perforation device 162 in this order.

The punch device 158 is for punching feed holes on both left and right sides of the paper 14, and its details are shown in the first page.
This is shown in Figure 5. Frame 163 of processing section 4
Both left and right end portions of two mutually parallel rotating shafts 164 are supported. And these rotating shafts 1
Gears 165 that mesh with each other are fixed to the tips of the 64 projecting outward from the frame 163, and one of the gears 165 is connected to the worm gear 13 of the drive device reducer 10 via the same vertical orientation adjustment differential device 33 as described above. connected. Although not shown, a rotation angle detector similar to that of the offset printing section 2 is provided at one end of one of the rotating shafts 164 and on one side of the frame 163.

Two left and right pin wheels 166 are attached to one rotating shaft 164. As shown in FIG. 16, three grooves 167 extending in the axial direction and having a semicircular cross section are formed at equal intervals on the outer surface of the rotating shaft 164. On the other hand, three grooves 168 having a semicircular cross section corresponding to these grooves 167 are formed on the inner surface of the hole of the pin wheel 166 into which the rotating shaft 164 is inserted, excluding both left and right ends. 166 is provided with a hole 169 that connects both left and right ends of each groove 168. A large number of steel balls 170 are housed in three annular spaces constituted by these grooves 167 and 168 and the hole 169 so as to be able to circulate, so that the pin wheel 166 does not rotate with respect to the rotating shaft 164. can be smoothly moved in the length direction of the shaft 164, that is, in the left-right direction. The other rotating shaft 164
Two die wheels 171 on the left and right, each pairing with two pin wheels 166, are attached in the same manner as described above.

The frame 163 includes four parallel to the rotation axis 164.
The left and right ends of book feed shafts 172 are rotatably supported, and one wheel 166, 171 is connected to each feed shaft 172 via a moving member 173. That is, the movable member 173 is attached to each of the wheels 166 and 171 so that it can freely rotate but not move in the left-right direction.
One end of the feed shaft 73 is screwed into a male threaded portion 174 formed on the feed shaft 172 (see FIG. 16).
One end of two feed shafts 172 connected to one set of left or right pin wheel 166 and die wheel reel 171 are connected by a timing belt 175, and the position of either one of these feed shafts 172 is adjusted. A servo motor 176 is connected thereto. The rotation of this motor 176 causes the pair of pin wheel 166 and die wheel 171 to simultaneously move in the left-right direction along the rotation shaft 164. The same goes for the other set of pin wheels 166 and die wheels 171, and these two motors 176 can separately adjust the left and right positions of the left and right two sets of wheels 166, 171, wheel 166,
The left and right positions of 171 are displayed numerically on the control device 7, respectively. This position adjustment can be performed by a numerical command or a command from a manual operation switch, or can be performed automatically as follows by pressing an automatic adjustment button before the rotation starts. That is, the control device 7 has two sets of wheels 1.
The positions of wheels 66 and 171 are preset, and by pressing the automatic adjustment button, each set of wheels 1
66, 171 moves to this position and stops.
It is also possible to change the automatically adjusted position in accordance with a numerical command or a command from a manually operated switch before or during operation.
If punching is not required, the two sets of wheels 166 and 171 are moved to both left and right ends of the rotating shaft 164. Two sets of left and right wheels 166,
Each time the position of 171 changes, the controller 7
is set to In addition, once the target business form is decided, two sets of left and right wheels 166, 171
Since the positions of are also determined, these positions can be stored in the control device 7 for each business form, and then these positions can be automatically set by simply selecting the type of business form.

The slitting device 159 is for cutting off both the left and right edges of the paper 14 to make the paper width even. As shown in FIGS. 14 and 17, this device 159
The receiving cylinder 177 has both left and right ends rotatably supported by the frame 163, and two left and right machining heads 1.
78. The receiver cylinder 177 is connected to the worm gear 13 of the drive reduction gear 10 that is common to the punch device 158 via a timing belt 179 .

Both ends of a guide rod 180 extending left and right are fixed to the frame 163 of the processing section 4, and two feed screws 181 are arranged in parallel above and below the guide rod 180.
Both left and right ends of the feed screw 181 are rotatably supported, and a position adjustment servo motor (not shown) is connected to one end of each feed screw 181. On the guide rod 180,
The moving members 182 of the two left and right machining heads 178 are respectively fitted so as to be movable left and right. 17th
As shown in the figure, the lower feed screw 181 is screwed into the internal threaded part formed at the lower part of the moving member 182 on one side, and the upper feed screw 181 is slightly inserted into the left and right through holes 183 formed at the upper part. This moving member 182 is fitted with a gap of
is moved left and right by the rotation of the lower feed screw 181 without interfering with the upper feed screw 181, but is designed not to move even when the upper feed screw 181 rotates. On the contrary, the moving member 182 on the opposite side moves left and right due to the rotation of the upper feed screw 181 without interfering with the lower feed screw 181, but even if the lower feed screw 181 rotates, It is designed not to move. Therefore,
As with the punching device 158, the left and right positions of the left and right machining heads 178 can be adjusted separately by means of two motors.

A rectangular block 184 extending forward is fixed to the upper front surface of the movable member 182 of each processing head 178, and a downwardly directed air cylinder 185 is fixed to the upper surface of this block 184. This cylinder 1 penetrates the block 184 and protrudes downward.
A holder 186 that is movable up and down along the front surface of the movable member 182 is fixed to the lower end of the rod 85.
A book guide rod 187 is fitted into a guide hole formed in the block 184 so as to be movable up and down.
A cutter 188 is rotatably attached to the lower end of each holder 186. When performing the slitting process, the holder 186 is lowered by the air cylinder 185 and the cutter 188 is moved into the receiving barrel.
77 and when slitting is not required, the holder 186 is raised to separate the cutter 188 upward from the receiving barrel 177.

Two processing heads 178 of the slitter device 159
The horizontal position adjustment is the same as that for the punch device 158, but in the case of the slitter device 159, in addition to the horizontal position of each processing head 178, the presence or absence of slitting processing is set for each processing head 178. The control device 7 automatically controls the air cylinder 185 when the automatic adjustment button is pressed.

The vertical perforation device 160 is for performing vertical perforation on the paper 14, as shown in FIG.
This device 160 has frames 163 at both left and right ends.
The receiving cylinder 189 is rotatably supported by the machine, and four processing heads 190 are movable left and right.
The receiving barrel 189 is connected to the worm gear 13 of the drive device reduction gear 10 via the vertical register adjustment differential device 33 similar to that described above. The structure of the processing head 190 is similar to that of the slitter device 159, and the same components are given the same reference numerals. Two machining heads 190 are attached to two guide rods 180, and four feed screws 181 are each connected to a position adjusting servo motor (not shown). As in the case of the slitter device 159, the horizontal positions of the four processing heads 190 can be adjusted separately by these four motors. In addition, the holder 18 of each processing head 190
A vertical sewing machine cutter 191 is rotatably attached to the tip of 6. And the necessary cutter 1
By pressing only the cutter 91 against the receiving cylinder 189, unnecessary cutters 191 can be kept away from the receiving cylinder 189.

The first horizontal perforation device 161 is for performing horizontal perforation at predetermined intervals in the length direction of the paper 14, and as shown in FIG.
1 is a receiving barrel 189 common to the vertical sewing machine device 160;
and a sewing machine barrel exchange unit 192 which is detachably attached to the upper part of the frame 163. Left and right side plates 193 of replacement unit 192
Both left and right ends of a rotating shaft 194 are rotatably supported, and a sewing machine barrel 195 is fixed to this rotating shaft 194. Although not shown, the rotation of the receiver barrel 189 is transmitted to the sewing machine barrel 195 by a gear, and a horizontal sewing cutter extending left and right is fixed to one location on the outer surface of the sewing machine barrel 195. In addition, sewing machine barrel 1
One end of the rotating shaft 194 of 95 and the side plate 193
A rotation angle detector similar to that of the offset printing section 2 is provided at the offset printing section 2.

The second horizontal sewing machine device 162 includes a receiving barrel 196 whose left and right ends are rotatably supported by the frame 163.
and a sewing machine barrel exchange unit 192 similar to the above. The receiving barrel 196 is connected to the worm gear 13 of the drive reduction gear 10, which is common to the vertical sewing machine device 160 and the first horizontal sewing machine device 161, via the same vertical register adjustment differential device 33 as described above. The rest is the same as in the case of the first horizontal sewing machine device 161, and the same parts are given the same reference numerals.

This form rotary press has a plurality of exchange units 192 each having a sewing machine barrel 195 of different dimensions.
These can be replaced and used as needed. If two types of horizontal perforation are required, replaceable units 192 are installed at predetermined positions of both horizontal perforation devices 161 and 162 as shown in Fig. 14, and only one type of horizontal perforation is required. In this case, the horizontal sewing machine 16
Replacement unit 1 for only one of 1,162
92 is installed and horizontal perforation is not required, the replacement unit 192 is removed from both horizontal perforation devices 161 and 162.

A plurality of rollers 1 are mounted on the frame 163 of the processing section 4.
97,198,199,200,201,20
2, 203, 204, 205 and one mounting roller 206 are rotatably supported, and the paper 14 sent from the back carbon printing section 3 is passed through a roller 197, a punch device 158, and rollers 198, 19.
9. Receiving cylinder 177 of slitter device 159, roller 2
00, the receiving cylinder 189 of the vertical sewing machine device 160 and the first horizontal sewing machine device 161, the roller 201, the receiving cylinder 196 of the second horizontal sewing machine device 162, the rollers 202, 2
03, take-up roller 206 and rollers 204,2
05 and is sent to the paper discharge section 5.

The take-up roller 206 is for taking the processed paper 14 under constant tension and sending it to the paper discharge section 5, and uses an electromagnetic clutcher, a torque converter, etc., as shown in FIGS. 14 and 18. The sewing machine device 160,
161 and 162 are connected to the worm gear 13 of the drive device reduction gear 10. Further, the take-up roller 206 has a hollow cylindrical shape with both left and right ends sealed, and a large number of holes 210 are formed in the entire peripheral wall thereof. The space inside the take-up roller 206 is connected by appropriate means to a vacuum device (not shown) using a blower or the like, thereby bringing the space into a vacuum state. The paper 14 sent through the roller 203 is brought into close contact with the surface of the take-up roller 206 by a vacuum device, and is delivered to the paper discharge section 5 with a constant tension without causing slippage. That is, since the take-up roller 206 is connected to the drive device 6 via the slip device 207, slips occur only at the slip device 207, and no slip occurs between the paper 14 and the take-up roller 206. And slip device 2
07 gives a constant torque and no slip occurs between the take-up roller 206 and the paper 14, so the tension of the paper 14 is kept constant, and the speed of the paper 14 is applied to the paper 14 as in the conventional case. There is no change in the tension. Therefore, even if the speed of the paper 14 changes, there is no deviation in the vertical register of the printing position and the processing position, and there is no need to perform troublesome vertical register adjustment depending on the speed of the paper 14 as in the past. . Since the tension of the paper 14, that is, the rotational torque of the take-up roller 206, changes depending on the thickness of the paper, the control device 7 stores the relationship between the paper thickness and the rotational torque.
By pressing the automatic adjustment button before starting operation,
The set torque of the slip device 207 is changed according to the paper thickness set in the control device 7. There is a certain relationship between the paper thickness of the web 14 and the tension, that is, the rotational torque of the take-up roller 206. By storing this relationship in the control device 7, the control device 7 can control the paper thickness based on the paper thickness set in the control device 7. The set torque of the slip device 207 can be automatically set by The torque setting of the slip device 207 can also be done by numerical examples, and the set torque automatically adjusted as described above can also be changed by numerical commands before or during operation. Also, paper 1
4 is brought into close contact with the surface of the take-up roller 206 by a vacuum device, and there is no need to use a press roller to press the paper against the take-up roller as in the past, so the print surface of the paper 14 is not stained by the press roller. There is no risk of it happening.

The paper discharge section 5 is provided with a zigzag folding machine 211 and a winding device 212, and either one is used depending on the purpose.

The zigzag folding machine 211 folds and stacks the paper 14 sent from the processing section 4 in a zigzag shape at the horizontal perforation position, the details of which are shown in FIG. 19. The upper end of a large swinging arm 214 is attached to the upper part of the frame 213 of the paper discharge section 5 so as to be swingable back and forth, and the upper end of a small swinging arm 215 is attached to the swinging lower end of this arm 214 so as to be swingable back and forth. cage, each arm 214, 21
5 is rotatably supported by the frame 213.
The arm drive crank discs 216 and 217 are connected to each other. In addition, each arm 214, 215
A pair of rollers 218 and 219 extending in the left-right direction are rotatably attached to the swinging lower end of the roller.

Two horizontal guide rods 220 (upper and lower) extending forward and backward are provided on the left and right sides of the frame 213, and two moving blocks 2 (front and rear) are attached to these guide rods 220.
The right and left ends of 21 are attached so as to be movable back and forth. A plurality of dusters 222 are rotatably attached to each moving block 221 at predetermined intervals in the left-right direction, and these dusters 222
A plurality of spirals 223 located between the two are rotatably attached. A feed shaft 224 parallel to the upper and lower guide rods 220 is provided between the upper and lower guide rods 220, and a position adjustment servo motor 225 is connected to one end of the shaft 224. Male threaded portions 226 having different directions are formed at the front and rear portions of the feed shaft 224, and one moving block 221 is screwed into each male threaded portion 226. And motor 2
25, the front and rear moving blocks 221 move back and forth so as to approach and separate from each other while sandwiching a point directly below the swing center axis 227 of the large swing arm 214. The folding width of the paper 14, that is, the mutual spacing between the horizontal sewing machines is set in the control device 7, and the control device 7
By pressing the automatic adjustment button before starting operation,
By controlling the amount of rotation of the motor 225 in accordance with this, the front-to-back distance between the duster 222 and the spiral 223 is adjusted. The above-mentioned intervals can also be adjusted by numerical commands or manually operated switch commands, and the intervals automatically adjusted as described above can be adjusted by numerical commands or manually operated switch commands before or during operation. You can also change it.

Although not shown, crank discs 216, 21
7. The duster 222 and the spiral 223 are connected to the worm gear 13 of the drive gear reducer 10, which is common to the sewing machine devices 160, 161, 162, via the same vertical register adjustment differential device 33. Further, a rotation angle detector similar to that of the offset printing section 2 is provided at one end of the rotating shaft 233 to which the crank disk 216 is fixed and on one side of the frame 213. Rollers 228, 229, and 230 are rotatably supported on the upper part of the frame 213. Then, the roller 2 of the processing section 4
The paper 14 sent through the roller 22
8. Between rollers 229 and 230, large swing arm 2
Between the 14 rollers 218 and the small arm 21
It passes between the rollers 219 of 5 and the arms 214, 2
15 and the rotation of the duster 222 and spiral 223, they are folded into a zigzag shape at the horizontal sewing machine position and stacked on the belt conveyor 231.
from there through the discharge conveyor 232.

Since the winding device 212 is similar to a conventional one, illustration and description thereof will be omitted.

Rotating shaft 9 of plate cylinder 80 of printing cylinder exchange unit 43
4 and the differential device 3 provided between the plate cylinder 80 and the drive device 6.
3 is for rotating the plate cylinder 80 and stopping it at an arbitrary angular position in order to adjust the vertical register. When the servo motor 34 of the differential gear 33 rotates while the drive device 6 is stopped, the plate cylinder 80 rotates, and the angle detector 104 detects the point at which the proximity switch 97 detects the protrusion 96 of the collar 99. As the origin, the angular position of the plate cylinder 80 is detected from the amount of rotation of the motor 34 from this point. Differential device 3
The motor 34 of No. 3 is rotated by a numerical command from the control device 7 or a command from a manual operation switch to stop the plate cylinder 80 at an arbitrary angular position, and the angular position of the plate cylinder 80 is displayed on the control device 7. . Further, during operation, the motor 34 of the differential device 33 is stopped, and the rotation of the drive shaft 9 is directly transmitted to the plate cylinder 80.

The rotation shaft 153 of the plate cylinder 134 of the back carbon printing section 3, the rotation shaft 164 of the punch device 158, the rotation shaft 194 of the perforation cylinder 195 of the horizontal perforation devices 161 and 162, and the rotation shaft 233 of the crank disk 216 of the zigzag folding machine 211. Rotation angle detectors provided respectively in the rotational angle detectors and these rotational axes 15
The same applies to the differential device 33 provided between the drive device 6 and the drive device 6. Then, the control device 7 uses these to
The vertical register adjustment is automatically performed using the punch device 158 as a reference as follows. That is, by pressing the automatic adjustment button with the drive device 6 stopped before starting operation, the rotation axis 1 of the punch device 158 is adjusted.
64 rotates to the origin and stops, and the rotation axes 94, 153, 194, 233 of the other parts stop at the reference angle positions set in advance in the control device 7, thereby aligning the top and bottom. . The reference angular position is each rotating shaft 94, 153, 194, 23
It is set every 3. The reference angular position of the crank disk 216 of the zigzag folding machine 211 is always constant. Further, regarding the plate cylinder 80 of the print cylinder exchange unit 43, the reference angular position is determined for each unit 43, and the reference angular position remains constant as long as the same unit 43 is used. Therefore, a previously known reference angle position may be set each time the unit 43 is changed, or each unit 43 may be
The reference angular position may be stored in the control device 7 every three times, and the reference angular position may be automatically set by selecting the number of the unit 43. Furthermore, since the unit 43 is also determined when the target business form is determined, the number and reference angle position of the unit 43 are stored in the control device 7 for each business form, and all that is left to do is to select the type of business form. It is also possible to automatically set the reference angle position and adjust the vertical orientation. The same applies to the plate cylinder 134 of the back carbon printing section 3 and the perforation cylinder exchange unit 192 of the horizontal perforation machines 161 and 162.

As described above, in the above-described form rotary press, by pressing the automatic adjustment button before starting operation, the rotational speed of the feed roller 20 can be adjusted, and the impression cylinders 82 and 135 in the offset printing section 2 and the back carbon printing section 3 can be adjusted. Adjusting the distance between the axes, adjusting the set torque of the take-up roller 206, adjusting the presence or absence of processing and the horizontal position of the punch device 158, slitting device 159, and vertical sewing machine device 160 in the processing section 4, and adjusting the duster 2 in the zigzag folding machine 211.
22 and the spiral 223, as well as the vertical orientation between the respective parts, automatic operation can be started by pressing the operation start button of the control device 7. Therefore, there is no need to perform trial printing and adjustment many times as in the conventional case, and the time required to prepare for operation is significantly shortened. In addition, the paper thickness, punching device 158, and slitting device 159 are required for these adjustments.
The presence or absence of processing and the horizontal position of the vertical sewing machine 160, the folding width of the paper 14, and the reference angular position of the rotating shafts 94, 153, 194, 233 of each part, etc., are determined individually as necessary each time the contents change. , or all settings can be set automatically by selecting the target business form type as described above. In addition,
The motors 34 of the differential device 33 for adjusting the feed roller speed and the differential device 33 for adjusting the vertical register and the slip device 207 of the take-up roller 206 are based on numerical commands from the outside by the operator or numerical commands set inside the control device 7. Control of the set torque and the like can be achieved by any known appropriate method, such as a method commonly used in numerical control devices.

In the above-mentioned foam rotary press, the rotation of the drive shaft 9 is transmitted to each part via the worm reducer 10, so that the drive shaft can be rotated at high speed and with low torque. Therefore, the torsion of the drive shaft 9 is smaller than that of a conventional drive shaft that rotates at low speed and high torque, and this torsion is transmitted to each part at a reduced speed, which prevents vertical misalignment of printing and processing positions. becomes very small.

Although an offset form rotary press is shown in the above embodiment, the present invention can of course be applied to other types of foam rotary presses such as a letterpress form rotary press.

According to the form rotary press of this invention, as will be explained next, vertical register adjustment is extremely easy, and troublesome vertical register adjustment is not necessary when the paper feed speed changes, and high-quality products can be obtained. be able to.

Rotation angle detectors are provided for each of the rotation axis of the plate cylinder, the rotation axis of the wheel of the punch device, the rotation axis of the sewing machine barrel, and the drive rotation axis of the zigzag folding machine, and the Since a vertical register adjustment differential device with a motor controlled by a control device is provided between them, vertical register adjustment is extremely simple.

Since the slip device is provided between the take-off roller and the drive device, slips occur only at the slip device, and no slips occur between the take-off roller and the paper. Then, a constant torque is applied by the slip device, and no slip occurs between the take-up roller and the paper, so the tension of the paper is kept constant. There is no such thing as changing. Therefore,
Even if the paper speed changes, the vertical register of the printing position and the processing position will not shift, and there is no need to perform troublesome vertical register adjustment depending on the paper speed as in the past. Therefore, for example, it is possible to adjust the vertical orientation at low speed and then continue driving at high speed.

A differential device for adjusting the speed of the feed roller is provided between the feed roller and the drive device, and the speed of the feed roller is adjusted by a motor whose speed is controlled by the control device. There is no need to adjust the speed of the paper by causing slips, and even if the paper thickness changes, the paper can always be fed out at the appropriate speed, and even as the paper thickness increases, the tension increases as before. Never. As a result, paper distortion during printing and processing is always small.
You can get high quality products.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a configuration diagram of an offset form rotary press, FIG. 2 is an explanatory diagram showing the drive device and the flow of paper, and FIG. 3 is a longitudinal cross-sectional view of a paper feeding section. , FIG. 4 is a sectional view taken along the line in FIG. 3, FIG. 5 is a perspective view of the tension adjustment device of the paper feed section, FIG. 6 is a vertical sectional view of the offset printing section, and FIG. 7 is a sectional view taken along the line in FIG. 6. FIG. 8 is a side view showing an enlarged portion of the printing cylinder exchange unit of the offset printing section.
9 is a sectional view taken along the line shown in FIG. 8, FIG. 10 is an enlarged sectional view taken along the line 9 shown in FIG. A drawing equivalent to Fig. 11 showing the replacement unit, Fig. 13 is a longitudinal sectional view of the back carbon printing section, and Fig. 1
4 is a longitudinal sectional view of the processing section, FIG. 15 is a partially omitted perspective view of the punch device, FIG. 16 is a longitudinal sectional view of the pin wheel of the punch device, and FIG. 17 is a front view of the processing head of the slitter device. Figure 18 is Figure 14-
19 is a longitudinal sectional view of the zigzag folding machine, and FIG. 20 is a block diagram of the control device. 1...Paper feed section, 2...Offset printing section, 4...
...Processing section, 5... Paper discharge section, 6... Drive device, 7...
...Control device, 14...Wrap paper, 20...Feeding roller, 33...Differential device, 34...Servo motor, 80...Plate cylinder, 94, 164, 194, 23
3...Rotation axis, 104...Rotation angle detector, 15
8...Punch device, 161, 162...Horizontal sewing machine device, 166...Pin wheel, 171...Dice wheel, 195...Sewing machine barrel, 206...Take-up roller, 207...Slip device, 211...
Zigzag folding machine.

Claims (1)

[Claims] 1. A paper feeding section 1, a printing section 2, a processing section 4, a paper ejection section 5, and a drive device 6 and a control device 7 for these. 20
The printing section 2 is provided with a plate cylinder 80, and the processing section 4 is provided with a punching device 1 having a pin wheel 166 and a die wheel 171 paired therewith.
58, horizontal sewing machine device 16 having a sewing machine barrel 195
1, 162 and a take-up roller 206 that takes up the web 14 that has been printed and processed and sends it out to the paper discharge section 5, and the paper discharge section 5 is provided with a zigzag folding machine 211. 20 and the drive device 6, there is provided a differential device 33 for adjusting the speed of the delivery roller, which is equipped with a motor 34 whose speed is controlled by the control device 7. 171's rotating shaft 164, the rotating shaft 194 of the sewing machine barrel 195, and the zigzag folding machine 21
A rotation angle detector 104 is provided for each drive rotation shaft 233, and a motor 3 controlled by a control device 7 is provided between these rotation shafts 94, 164, 194, 233 and the drive device 6.
A differential device 33 for adjusting the vertical register 4 is provided, and a slip device 207 is provided between the take-up roller 206 and the drive device 6. The form rotary press is equipped with means for individually controlling the motor 34 of the differential device 33 for adjusting the feed roller speed, the motor 34 of the differential device 33 for adjusting the vertical register, and the slip device 207 based on numerical commands given.