JPH08108514A - Printer - Google Patents

Abstract

PURPOSE: To obtain a printed matter having a high printing accuracy despite the material such as flexibility of the matter to be printed with high productivity. CONSTITUTION: A plurality of blankets 60 and outputs 58 are alternately aligned circumferentially on the periphery of a rubber cylinder 57. A plurality of plate cylinders 62 for transferring an image to the blankets 60 are detachably provided at the blankets 60. A drive unit 74 for reciprocating a movable table 73 which supports a printed matter 80 is provided. Three color plate cylinder units 61A, 61B, 61C are moved, and an air cylinder 71 for detachably mounting the cylinder 62 at the blankets 60 of the cylinder 57 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a printing cylinder rotatably supported on the frame side and a supporting means for supporting a printing material, and transfers an image formed on the printing cylinder to the printing material to perform printing. The present invention relates to a printing machine that performs.

[0002]

2. Description of the Related Art FIG. 21 is a schematic side view of, for example, a four-color printing press disclosed in Japanese Patent Laid-Open No. 63-239056 as a kind of printing press of this kind, which will be described with reference to FIG. Then, the peripheral surface of the blanket cylinder 2 which is supported by the left and right frames 1 of the printing machine and rotates in the direction shown by the arrow in the drawing is moved in the circumferential direction by 4
A notch 2a is provided in the equally divided portion, and a blanket 5 whose both ends are gripped by the grips 3 and 4 of the notch 2a is provided on the circumferential surface between the notches 2a adjacent in the circumferential direction. It is wrapped around.

Four plate cylinders 6a, 6b, 6c and 6d, which are the same in number as the number of blankets, are in contact with these blankets 5, and the plates mounted on the surface of each plate cylinder 6a to 6d , 4 different from each other by an inking device (not shown)
Colored ink is supplied and dampening water is supplied by the water supply device. Paper 9 as a material to be printed is stacked on the paper stack plate 8 of the paper feeding device indicated by reference numeral 2, and is provided between the paper feeding device 7 and the impression cylinder 10 that contacts the lower end surface of the blanket cylinder 7. Is provided with a feeder board 11 and a swing device 12. Further, below the paper feeding device 7, a paper discharging device 15 including a paper stacking plate 14 for stacking printed paper 9 conveyed by a paper discharging chain 13 after printing is arranged.

With such a configuration, the paper 9 on the paper stack 8 is sucked by the suction port (not shown), fed onto the feeder board 11, and conveyed on the feeder board 11, and then the swing device. It is supplied at 12 between the impression cylinder 10 and the blanket cylinder 2. At this time, since the four color images are transferred to each blanket 5 of the blanket cylinder 2 by the four plate cylinders 6a to 6d, the images are overlapped and transferred to the paper 9 to perform the four color printing. It The printed paper 9 is
The paper is conveyed by the paper discharge chain 13 and stacked on the paper stack plate 14.

Next, unlike the above-mentioned printing machine, a printing machine provided with a flat plate and a printing cylinder which rotates in contact with the plate is disclosed in, for example, Japanese Patent Laid-Open No. 62-94341. The configuration and operation of this printing machine will be described. 22 to 25 show a printing machine disclosed in this publication, FIG. 22 is a plan view of the printing machine shown without a printing cylinder, FIG. 23 is a front view of FIG. 22 seen from IIXI, and FIG. FIG. 25 is a side view, and FIG. 25 is a side view of the printing machine shown by the meshed portions of the gears.

In these figures, the vertical members on both sides of the frame 16 formed in a U shape in a front view and in an inverted T shape in a side view are provided with a rubber as a printing cylinder having a blanket mounted on the peripheral surface. The body 17 is rotatably supported,
Below the blanket cylinder 17, a pedestal 18 formed in a U-shape when viewed from the front is supported by a pair of rails 19 laid on the bottom plate of the frame 16 so as to be movable back and forth, and is disposed inside the frame 16. ing.

A pair of racks 20 laid parallel to each other on both upper end surfaces of the pedestal 18 mesh with pinions 21 fixed to both ends of the blanket cylinder 17, and the rack 20 has a frame 16 The driving gear 23 axially attached to the motor shaft of the side motor 22 is meshed. As a result, when the driving gear 23 is driven by the motor 22 to rotate in the forward direction or the reverse direction, the gantry 18 moves forward or backward via the rack 20 meshing therewith, and the rack 20 and the pinion 21 move. The blanket cylinder 17 is configured to rotate in the forward direction or the reverse direction by the meshing of.

Reference numeral 24 denotes a plate surface plate which is located in the front part of the gantry 18 and is supported by the bottom plate of the gantry 18 through a horizontal adjusting member.
8 is a platen for a rectangular object to be printed, which is supported by a bottom plate 8 of FIG.
As shown in FIG. 25, an intaglio plate 26 as a printing plate is provided on
Is placed and fixed, and the surface plate 2 for the printing object
As shown in FIG. 23, a plate-shaped object to be printed 27 is placed and fixed on the substrate 5.

The pair of racks 20 are each divided into two in the longitudinal direction, and between the divided racks 20,
Three sets of evacuation racks 28, 29, 30 that mesh with the pinion 21 are provided in front of and behind the rack 20 so as to be vertically movable.
Is configured to move up and down by an eccentric cam, an air cylinder, or the like (not shown) so as to mesh with the pinion 21 or to be disengaged and retract.

Above the intaglio plate 26, there are provided an inking squeegee 32 which moves up and down by an air cylinder 31 so as to be attached to and detached from the plate surface, and a doctor 34 which moves up and down so as to be attached to and detached from the plate surface by an air cylinder 33. The air cylinder 3 is provided diagonally above the blanket cylinder 17.
Ink wiping rollers 37 and 38, which move so as to be attached to and detached from the blanket surface of the blanket cylinder 17 by 5 and 36, are provided. Reference numeral 39 is a plate surface cleaning roller which moves so as to be attached to and detached from the intaglio plate 26 by an air cylinder 40, and 41 is a hot air blower which is disposed obliquely above the blanket cylinder 17 and blows hot air onto the blanket surface of the blanket cylinder 17. is there.

The air cylinders 31 and 33 are fixed to a support frame 43 which is supported by guide shafts 42 on both side vertical members of the frame 16 so as to be able to move forward and backward, and the support frame 43 includes the frame 16 side. Air cylinder 44
The working end of the piston rod 45 moving forward and backward is fixed. By doing so, when the piston rod 45 moves back and forth by the air pressure, the support frame 43 moves forward and backward in the moving direction of the gantry 18, and the air cylinders 31 and 33 move forward and backward in the same direction.

Reference numeral 46 in FIG. 25 is an eccentric bearing, which is rotated by an air cylinder 47 shown in FIG. 23 so that the blanket surface is in contact with the surface of the intaglio plate 26 and the blanket state. The blanket cylinder 17 is configured to move between a state in which the surface is separated from the surface of the intaglio 26 and the cylinder is removed. The operation of the conventional printing press configured as described above will be described. In the state shown in FIG. 23,
When the blanket cylinder 17 is put into the cylinder insertion state by the eccentric bearing 46 and then the motor 22 is rotated in the forward direction, the driving gear 28 rotates and the rack 18 is engaged with the pedestal 18 to move to the left in FIG. The movement of the gantry 18 is stopped while the front evacuation rack 30 is located right below the pinion 21. Ink is supplied to the plate surface by the inking squeegee 32 during this movement.

After that, when the blanket cylinder 17 is in the unrolled state and the motor 22 is rotated in the reverse direction, the driving gear 23 is rotated, and the rack 18 is engaged with the pedestal 18 to move to the right in FIG. The movement of the gantry 18 is stopped at a position where the center forward / backward rack 28 reaches directly under the blanket cylinder 17. During this movement, the doctor 32 scrapes off excess ink other than the recesses on the intaglio surface.

Then, the central advancing / retreating rack 28 is lowered to release the meshing with the pinion 21, the blanket cylinder 17 is idled to a predetermined rotational phase position, and then the central advancing / retreating rack 28 is raised to form the pinion 21. Mesh with each other. Then, after the printing material 27 is placed and fixed on the printing material surface plate 25, when the blanket cylinder 17 is put in the insertion state and the motor 22 is rotated in the reverse direction, the gantry 18 moves to the right in FIG. 23,
As shown in FIG. 22, the movement of the gantry 18 is stopped at the position where the rear rack 29 is directly below the blanket cylinder 17. During this movement, the image formed on the surface of the intaglio plate 26 is transferred to the blanket surface of the blanket cylinder 17.

Next, when the blanket cylinder 17 is pulled out and the motor 22 is rotated in the forward direction, the driving gear 23 is rotated, and the rack 18 is engaged with the pedestal 18 to move leftward in FIG. At the position where the advancing / retreating rack 28 reaches just below the blanket cylinder 17, the movement of the gantry 18 stops, the central advancing / retreating rack 28 descends, and the meshing with the pinion 21 is released. After letting it spin up to the center, the central advancing / retreating rack 28 is raised to the pinion 2
After meshing with 1, the blanket cylinder 17 is put in the cylinder state and the motor 22 is normally rotated to move the gantry 18 to the left in FIG. During this movement, the image on the blanket surface of the blanket cylinder 17 is transferred to the printing material 27 and printed.

After printing, when the blanket cylinder 17 is in the unrolled state and the motor 22 is rotated in the reverse direction, the gantry 18 moves to the position shown in FIG. 23. Therefore, by removing the printed object 27, one printing operation can be performed. finish.

[0017]

However, among such conventional printing machines, the printing machine disclosed in Japanese Patent Laid-Open No. 63-239056 is a rotary type printing machine, and the object to be printed is rubber. Since printing is performed between the cylinder 2 and the impression cylinder 10 while being wound around the impression cylinder 10 and conveyed, the material to be printed is limited to a material that is extremely flexible, such as paper. However, there is a problem that even a material that can be bent to some extent cannot be printed on a material that cannot be wound around the impression cylinder 10.

Further, in the printing machine disclosed in Japanese Patent Application Laid-Open No. 62-94341, the distance for reciprocating the gantry 18 is long each time one sheet of the material 27 to be printed is printed, and one more printing operation is required. Since only one color can be printed, in the case of multi-color printing, it is necessary to replace the material to be printed for each color and repeat the setup operation for aligning the print registration, and this setup requires a long time and the productivity is not only reduced. In addition, there is a problem that images of respective colors are likely to be displaced and high printing accuracy cannot be expected.

Further, since the racks 20, 28, 29, 30 and the pinion 21 are provided in the drive system for moving the gantry 18, there is a problem that the backlash of the meshing portion further lowers the printing accuracy. The present invention has been made in view of the above points, and provides a printing machine capable of obtaining a printed product with high printing accuracy and good productivity regardless of the material such as flexibility of the printed material. Is intended.

[0020]

In order to achieve such an object, in the invention according to claim 1, the printing cylinder rotatably supported on the frame side and the printing cylinder which supports an object to be printed. A supporting means that is reciprocally driven in a tangential direction,
In a printing machine for transferring an image formed on the printing cylinder to the printing medium to perform printing, a printing cylinder driving device for rotating the printing cylinder, a supporting means driving device for reciprocating the supporting means, and An image forming portion formed on the peripheral surface of the printing cylinder side by side in the circumferential direction, and the printing drum when the supporting means in which an image is transferred from one of the image forming portions to the printing object during the forward movement is returned. And a plurality of image forming means for separating images from the printed material and detachable parts corresponding to the respective image forming portions and detachably attached to the respective image forming portions and transferring images to the respective image forming portions. I installed a torso.

According to a second aspect of the present invention, there are provided a printing cylinder gear fixed to the printing cylinder side and a supporting means gear meshing with the printing cylinder gear and fixed to the supporting means side.
The releasing means is configured as a detaching means for separating the printing cylinder from the printing object and releasing the meshing between the printing cylinder gear and the supporting means gear, and the printing object supported by the supporting means from the printing cylinder. The printing cylinder driving device and the supporting device driving device are controlled so as to remove the backlash at the meshing point between the printing cylinder gear and the supporting device gear that mesh with each other during the image transfer to.

According to a third aspect of the present invention, there are provided a rotational phase detector connected to the printing cylinder to detect the rotational phase of the printing cylinder, and a supporting means position detector to detect the position of the supporting means. The supporting means driving device is controlled by the detection signals of these detectors. According to a fourth aspect of the present invention, an inspection camera is provided on the movement path of the supporting means and reads the register mark of the preprinted printed matter that is supported and moved by the supporting means, and is controlled by a signal from the inspection camera. A register device for registering the image forming cylinder is provided.

According to a fifth aspect of the present invention, a bearing is provided that is rotatably supported on the frame side to rotatably support the printing cylinder, and a rotating means for rotating the bearing is provided. The bearing is configured as an eccentric bearing in which the center of the outer circumferential circle that is axially supported in the bearing hole of the frame and the center of the inner circumferential circle that axially supports the printing cylinder are eccentric to each other. In the invention of claim 6, a heater is embedded in the outer peripheral portion of the printing cylinder.

[0024]

When the supporting means driving device is started by a command from the control device, the supporting means enters the peripheral surface of the printing cylinder from the tangential direction, but even if the supporting means passes directly below the printing cylinder by the releasing means, the printing material is printed. Does not come into contact with the printing cylinder, so that the material to be printed and the image forming portion are not soiled or damaged.

When the supporting means thus moving reaches the origin position, the supporting means position detector detects this and the supporting means drive device stops and the supporting means stops. In this case, since the bearing that supports the printing cylinder on the frame is an eccentric bearing, the eccentric action of the eccentric bearing adjusts the clearance corresponding to the thickness of the printing material. At this time, since the rotational phase detector detects the rotational phase of the printing cylinder being rotated by the printing cylinder driving means, when the preset rotational phase of the printing cylinder is detected, the supporting means drive device is driven. Then, the supporting means moves in a direction away from the origin position.

By doing so, the first color image transferred from the image forming cylinder to the corresponding image forming portion is transferred to the printing material supported by the supporting means. When the supporting means on which the material to be printed on which the first color has been printed is mounted reaches a predetermined position, the supporting means position detector detects this and stops its travel, and the first color printing ends. When the printing of the first color is completed, the supporting means returns to the original position for printing the second color. Regarding this return, when the rotational phase detector detects a predetermined rotational phase of the printing cylinder, the supporting means driving device is driven to return the supporting means to the original position, but the escaping means causes the supporting means to pass directly below the printing cylinder. However, since the printed material does not come into contact with the printing cylinder, the printed material and the image forming portion are not stained or damaged. By repeating such an operation, printing of a plurality of colors is performed.

Prior to such a printing operation, a registration operation of the image forming cylinder is performed. That is, when the test print substrate on which the register mark is printed is fixed to the supporting means and the register mark is read by the inspection camera, the vertical direction, the left-right direction, and the twisting direction of the image forming cylinder corresponding to the reading deviation amount. Is registered. According to the second aspect of the present invention, the printing cylinder gear fixed to the printing cylinder side meshes with the printing cylinder gear and the supporting means gear fixed to the meshing gear supporting means side, and the gears mesh with each other. Since the moving speeds of the printing cylinder and the supporting means at the points are controlled so as to be different from each other, the backlash at the meshing points is absorbed, and the printing deviation due to the backlash is eliminated.

Further, when the supporting means after the printing of the first color is returned to the original position, the releasing means separates the printing cylinder from the object to be printed and disengages the gears from each other. The printed material does not come into contact with the printing cylinder even when the printed material passes directly below, and the printed material and the image forming portion are not soiled or damaged.

[0029]

1 to 4 show an embodiment of a printing machine according to the present invention, FIG. 1 is a schematic side view of a printing machine embodying the present invention, and FIG. 2 is a side view of a principal part of the printing machine. 3 is a plan view of the printing apparatus, and FIG. 4 is a front view of the same. In the figure, inside a closed-room thermostatic chamber 50 that is shielded from the outside, a printing material feeding / discharging device 51, a printing device 52, and both of these devices 51, 5 are provided.
2 and a device 5 for conveying a printed material for connecting the two.
A printing machine 55 including a bed 54 that supports 1, 52, 53 is accommodated, and a pair of left and right frames 56 are erected on the printing apparatus 52 on the upper end surface of the bed 54.

A blanket cylinder 57 as a printing cylinder is rotatably supported by bearings provided on the left and right frame 56 sides, and both end shafts thereof are rotatably supported. A plurality of image forming portions 59 extending over the entire length in the direction, three in this embodiment, and a notch 58 as a relief means are formed alternately in parallel in the circumferential direction, and each image forming portion 59.
The blanket 60 is mounted with its both ends supported by the support fittings in the notches 58.

Reference numerals 61A, 61B and 61C denote plate cylinder units for the first, second and third colors, respectively, each of which has a plate cylinder 62 as an image forming cylinder. The plate 63 is attached. Each plate cylinder 62
It is pivotally supported by the left and right sub-frames 64,
Further, between the left and right sub-frames 64, an ink roller 65, which is in contact with the plate 63, is axially mounted by immersing the lower part in ink 67 in a gutter-shaped ink chamber 66 supported by the left and right sub-frames 64. .

Reference numeral 68 denotes a doctor blade whose tip is in contact with the plate 63 and is supported between the left and right subframes 64.
Further, 69 is an automatic ink supply device for supplying the ink 67. The ink 67 supplied to the ink fountain 66 by the automatic ink supply device 69 is attached to the plate 63 by the rotating ink roller 65, and excess ink 67 is added. Is configured to be scraped off by a doctor blade 68 and returned into the ink fountain 66.

The plate cylinder unit 61 constructed in this way
A, 61B, 61C (the subframe 64 and the like are shown only in the plate cylinder unit 61B) are movably supported by guide rails 70 in the direction toward and away from the blanket cylinder 59, and the subframe 64 includes a frame 56. A piston rod of an air cylinder 71 as a detaching means supported on the side is pivotally attached. As a result, when the piston rod of the air cylinder 71 is moved back and forth, the plate cylinder 63
Is configured to be attached to and detached from the blanket surface of the blanket cylinder 59.

Next, the support means for the material to be printed and the drive device for reciprocating the support means will be described. Bed 54
A pair of left and right guide rails 72 are laid parallel to each other on the upper end surface of the guide rail 72.
A traveling table 73 as a support means formed in a rectangular shape in a plan view is supported so as to be reciprocally movable in the horizontal tangential direction of the blanket cylinder 59.

On the other hand, at the front end of the bed 54, a supporting means drive unit 74 is fixed at the center of the bed 54 in the width direction, and the rotary shaft of the drive unit 74 has a rear end. A ball screw shaft 76 pivotally supported by a bearing 75 on the bed 54 side is directly connected. This ball screw shaft 7
6 is screwed with nuts 77 fixed to both front and rear ends of the back surface of the traveling table 73, and the ball screw shaft 76 is rotated by the drive unit 74, whereby the traveling table 73 is rotated.
Are configured to reciprocate along the guide rail 72.

In FIG. 1, the printing material feeding / discharging device 51.
Is a motor unit 78 housed in the recess of the rear end of the bed 54, a turntable 79 directly connected to the rotation shaft of the motor unit 78, and a claw 81 for gripping a material 80 to be printed.
82 supported by turntable 79
And a cassette 83 for accommodating the printed material 80, the printed material 80 in the cassette 83 is supplied onto the traveling table 73, or the printed printed material 80 is discharged from the traveling table 73 into the cassette 83. Is configured to do.

Next, a drive device for rotating the blanket cylinder 57 will be described. 4, a large gear 84 is fixed to both end shafts of a blanket cylinder 57 whose both end shafts are rotatably supported by the left and right frames 56, and a motor of a motor 85 fixed to the frame 56. A pinion 86 that meshes with the large gear 84 is attached to the shaft. As a result, when the motor shaft of the motor 85 rotates, the blanket cylinder 57 rotates at a predetermined speed. 87 is an encoder fixed to the end shaft of the motor 85 to detect the rotation speed of the motor 85, and 88 is an encoder fixed to the end shaft of the blanket cylinder 57 to detect the rotation phase of the blanket cylinder 57. .

An encoder 90 as a support position detecting device for detecting the number of revolutions of the ball screw shaft 76 is fixed to the front end of the ball screw shaft 76 protruding from the drive unit 74 for reciprocating the traveling table 73. Further, in the vicinity of the rear end of the ball screw shaft 76, the traveling table 73 is provided by corresponding to a contact point 92 provided on the traveling table 73 which is retracted by the rotation of the ball screw shaft 76.
Sensor 9 that stops the vehicle at the forward limit position, which is the origin position
3 is provided. The encoder 90 may be configured to detect the origin position of the traveling table 73. An inspection camera 95 for reading the register mark of the test-printed printing target that is supported and moved by the traveling table 73 is provided in the movement path of the traveling table 73. The register machine is provided with a register device controlled by a signal from the inspection camera 95.

FIGS. 5 to 7 show an embodiment of this register device, FIG. 5 is a cross sectional view of the lateral register device, FIG. 6 is a cross sectional view of the vertical register device, and FIG. 7 is an outline of the twist register device. It is a front view. In FIG. 5, a motor 102 is fixed to a bottom plate of a bottomed cylindrical sub-frame 101 fixed to one side sub-frame 64 for each plate cylinder 62,
Further, the plate cylinder 62 is provided in the bearing hole 64a of the sub-frame 64.
The end shaft 62a is fitted through the eccentric bearing 103 so as to be rotatable and movable in the axial direction. Eccentric bearing 103
Is the center of the outer circumference of the bearing hole 64a and the end shaft 62.
The center of the inner circumferential circle that axially supports a is eccentric as indicated by the symbol t in the figure, and is fixed to the end shaft 62a and the holding cylinder 106 by the nut 104 and the press fitting 105, respectively. A movable shaft 108 is inserted into the center hole of the connection holder 107 fixed to the holding cylinder 106.

On the other hand, an outer peripheral threaded portion 110a of a nut 110 is screwed into a screw hole 109a of a nut 109 fixed to the central flange portion of the sub-frame 101, and a spline hole 110b of the nut 110 is The spline groove 112a of the spline shaft 112 fixed to the motor shaft 112a of the motor 102 with the key 111 is spline-fitted so as to be movable in the axial direction. Further, the connecting plate 113 fixed to the nut 110 is the connecting holder 1
07 and the movable shaft 108 are fixed by a nut 114.

By doing so, when the motor shaft 102a of the motor 102 rotates, the spline shaft 112 fixed by the key 111 also rotates, and the spline shaft 1
Since the nut 110 fitted to the spline 12 by the rotation rotates, the nut 110 and 109 are screwed to each other.
Is a connecting plate 113, a connecting holder 107, and an eccentric bearing 10.
3, the plate cylinder 62 moves back and forth in the axial direction, so that the lateral register adjustment is performed.

Next, referring to FIG. 6, the sub-frame 1 fixed to the opposite sub-frame 64 by a supporting member (not shown).
A motor 116 is supported by 15, and an eccentric bearing 1 in which the end axis a of the blanket cylinder 62 has the same configuration as that of the opposite side shown in FIG. 5 is provided in the bearing hole 64b of the subframe 64.
It is pivotally supported via 03. Furthermore, end shaft 6
A spline shaft 117 having a spline groove on its peripheral surface is fixed to the end surface of 2a.
Between the eccentric bearing 103 and the eccentric bearing 103.
A helical gear 119 that meshes with 18 is formed movably in the axial direction and fitted to the end shaft 62a.

Further, the inner tooth spline groove 120a of the bottomed cylindrical inner tooth gear 120 fixed to the helical gear 118 and gear-connected to an inking device or the like (not shown) is the outer tooth spline groove 117a of the spline shaft 117. I'm in mesh.
Further, a spline nut 123 is fixed to a connecting shaft 122 supported by a bottom plate of the internal gear 120 via a thrust bearing 121.

On the other hand, the spline groove 126a of the spline shaft 126 fixed to the rotary shaft 124 of the motor 116 with the key 125 meshes with the spline groove 123a of the spline nut 123, and the subframe 6
4, the sub-frame 128 supported by the stay 127 on the outer peripheral thread portion 123 b of the spline nut 123.
A nut 129 having a screw hole 129a for screwing with is fixed.

As a result, when the motor shaft 124 of the motor 116 rotates, the spline shaft 126 fixed by the key 125 rotates to rotate the motor shaft 124.
6, the spline nut 123, which is spline-fitted to the shaft 6, rotates, and the spline nut 123 is fixed by the screw action of the screw portion 123b and the screw hole 129a.
Since it moves in the axial direction with respect to the axial direction, the helical gear 119, which is integral with the axial direction, moves in the axial direction, and the helical action causes the helical gear 119 to rotate in a circle with respect to the fixed helical gear 118. Since it moves in the circumferential direction, the register is adjusted in the vertical direction.

Next, referring to FIG.
A motor 130 for adjusting the twist is fixed near the plate cylinder, and a screw shaft 132 is connected to a rotary shaft 131 thereof via a universal joint 133. On the other hand, of the left and right eccentric bearings 103 that pivotally support the end shaft 62a of the plate cylinder 62, a lever 134 is fixed to the outer peripheral portion of the left and right register device-side eccentric bearings 103.
The screw portion of the screw shaft 132 is screwed into the screw hole of the screw fitting 134a pivotally attached to the free end portion of No. 4.

As a result, when the motor shaft 131 of the motor 130 rotates, the screw shaft 132 and the screw fitting 13 are rotated.
The screw fitting 134a is advanced and retracted by the screw action with 4a, and only one end of the plate cylinder 62 is moved via the lever 134 and the eccentric bearing 103 so that the register adjustment in the twist direction is performed. Next, a device for adjusting the clearance of the printing cylinder for the material to be printed will be described. FIG. 8 is a schematic front view of a printing machine shown for explaining the clearance adjusting device. In FIGS. 2 and 8, the outer periphery of the eccentric bearing 135 is provided in the bearing holes 56a formed in the left and right frames 56. Yen 13
5a is rotatably supported, and the eccentric bearing 135
A shaft end 57a of the blanket cylinder 57 is rotatably supported by the inner circumference circle 135b of the shaft.

In the left and right eccentric bearings 135, the center of an outer peripheral circle 135a pivotally supported in the bearing hole 56a and the center of an inner peripheral circle 135b pivotally supporting the shaft end 57a are eccentric by a symbol T in the figure. A screw shaft fixed to the rotary shaft of the thickness adjusting motor 136 supported by the left and right frames 56 is provided in the screw holes of the screw fitting 137 swingably supported by the rotating end of the eccentric bearing 135. The threaded portion 136a is screwed.

By doing so, the thickness adjusting motor 13
When the rotary shaft of 6 rotates and the screw shaft 136a rotates, the screw metal member 137 advances and retreats by the screw action of the screw shaft 136a and the screw metal member 137, and the left and right eccentric bearings 135 rotate. Since the blanket cylinder 57 moves up and down slightly due to the eccentric action, the clearance adjustment corresponding to the thickness of the material to be printed 80 is performed.

FIG. 9 is a block diagram of the printing machine according to the present invention, in which the encoder 90 for detecting the position and speed of the traveling table 78, the encoder 88 for detecting the rotational phase of the blanket cylinder 57, and the rotation of the blanket cylinder 57. An encoder 87 for detecting the speed, a proximity sensor 93 for detecting that the traveling table 73 has moved to the origin position, and an inspection camera 95 for reading the register mark of the preprinted printed material are connected to the control device 94, and control the detection signal thereof. It is configured to output to the device 94.

Further, the control device 94 is connected to a drive device controlled by the detection signals of the above-mentioned sensors. That is, the control unit 94 includes a drive unit 74 that reciprocates the traveling table 73, a motor 85 that rotates the blanket cylinder 57, and a motor 1 that adjusts the lateral registration of the plate cylinder 62.
02, the motor 11 for adjusting the register of the plate cylinder 62 in the vertical direction
6. A motor 130 for adjusting the twist of the plate cylinder 62 is connected, and its drive is controlled by a control signal output from the controller 94. The motor 10 for register adjustment of the plate cylinder 62
Reference numerals 2, 116, and 130 indicate only one color, and motors 102 and 11 for register adjustment for the other two colors having the same configuration as this.
Illustration of 6 and 130 is omitted.

In FIGS. 1 and 2, 157 is a blanket cylinder 57.
Is a hot air blower having a circular arc shape in a side view, which is supported between the left and right frames 56 in the vicinity of the peripheral surface of the blanket 60, and the hot air is blown to the blanket 60 after the image transfer to the print object 80 to dry it. The image transfer from the plate 63 to the blanket 60 is surely performed. Reference numeral 158 is a dust removing roller extending in the axial direction of the blanket cylinder 57.

A plurality of rod-shaped heaters 159 extending in the axial direction of the blanket cylinder 57 are embedded in the outer periphery of the blanket cylinder 57, and each blanket 60 to which an image is transferred corresponding to each plate cylinder 62. In order to improve the print quality, the temperature of each part of the blanket 60 is made uniform and the density and the like of the print image transferred from the blanket 60 to the printing object 80 are made uniform.

The operation of the printing press configured as above will be described. 18, 19 and 20 are side views of the main part of the printing machine shown in the order of operation. FIG. 18 is a side view showing the plate cylinder of the first color in contact with the blanket, and FIG. 19 is the plate of the second color. FIG. 20 is a side view showing a state where the cylinder is in contact with the blanket, and FIG. 20 is a side view showing a state where the third color plate cylinder is in contact with the blanket.

At the start of the printing operation, the traveling table 73
Is stopped on the rear end of the bed 54 in the vicinity of the printing material feeding / discharging device 51. When the printing operation is started in this state, the printing object 80 stored in the cassette 83 is gripped by the claw 81 of the robot 82 which is rotated by the motor unit 78 and supplied onto the traveling table 73. In each of the plate cylinder units 61A, 61B, and 61C, the ink 67 in the ink fountain 66 supplied by the automatic ink feeder 69 is attached to the plate surface of the plate cylinder 62 by the rotating ink roller 65 to form an image. The formed ink 67 is scraped off by the doctor blade 68 and returned to the ink fountain 66.

When the rotation shaft of the motor 85 for rotating the blanket cylinder rotates in response to a command from the controller 94, the blanket cylinder 57 rotates in the direction indicated by the arrow in FIGS. 1 and 2 via the pinion 86 and the large gear 84. To do. The rotation speed of the blanket cylinder 57 is detected by the encoder 87 and is controlled by the control device 94 to rotate at a predetermined speed. When the control device 94 detects a predetermined rotation phase of the blanket cylinder 57 based on the rotation phase detection signal, the control device 94 outputs a control signal to the drive unit 74. The drive unit 74 is driven by this control signal.
Ball screw shaft 7 directly connected to the rotating shaft
Since 6 rotates, the traveling table 73 in which the nut 77 is screwed onto the ball screw shaft 76 moves to the origin position of the traveling table 73 along the guide rail 72 by the screw action. The drive device 94 receives the detection signal of the rotation phase and the rotation speed of the blanket cylinder 57 while the blanket cylinder 57 which is rotating at a predetermined speed is rotated while the notch 58 is directed downward. The drive speed and drive timing of the drive unit 74 are controlled so that 73 passes directly under the blanket cylinder 57. Therefore, even when the traveling table 73 passes directly under the blanket cylinder 57, the blanket 60 and the printing object 80 do not come into contact with each other, and they are not soiled or damaged.

In this way, the traveling table 73 moves, and as shown by the chain line in FIG. 2, when the printing object 80 fixed on the traveling table 73 reaches the origin position, the proximity sensor 93 detects the contact point 92. Therefore, the control device 94 outputs a control signal to the drive unit, the rotation of the ball screw shaft 76 is stopped, and the traveling table 73 is stopped. Although the proximity sensor 93 detects the origin position of the traveling table 73 in this embodiment, the encoder 90 may detect the origin position.

In this case, when the rotary shaft of the thickness adjusting motor 136 rotates and the screw shaft 136a rotates, and the screw metal member 137 moves forward and backward by the screw action of the screw shaft 136a and the screw metal member 137, the left and right eccentric bearings 135 are moved. Since the blanket cylinder 57 rotates and moves up and down slightly due to the eccentric action, the clearance adjustment corresponding to the thickness of the printing object 80 is performed. For this clearance adjustment, the thickness adjusting motor 136 may be controlled based on the thickness of the printed material 80 that is input in advance to the control device 94 prior to the printing operation, or the printed material 8 may be placed in the movement path of the traveling table 73.
A photoelectric sensor for detecting the thickness of 0 may be provided and connected to the control device 94 to control the thickness adjusting motor 136 based on the detection signal of the thickness of the printing object 80.

On the other hand, when the blanket cylinder 57 is rotating,
The image is transferred from the plate cylinder 62 to the blanket 60. That is, when the control device 94 detects that the blanket cylinder 57 has reached the predetermined rotation phase by the detection signal of the encoder 88, the air cylinder 71 that attaches and detaches the plate cylinder unit 61A for the first color to the blanket cylinder 57. As the piston rod extends, the plate cylinder 62 for the first color contacts the corresponding blanket 60 as shown in FIG.
The image formed on the plate cylinder 62 by depositing the ink by means of 5 and scraping off the excess ink by the doctor blade 68 is transferred to the blanket 60.

At this time, since the encoder 88 detects the rotation phase of the blanket cylinder 57 rotated by the motor 83, if the controller 94 detects the preset rotation phase of the blanket cylinder 57. The control unit 94 is the drive unit 74.
Since the control signal is output to the rotary shaft of the drive unit 74 and the ball screw shaft 76 directly connected thereto rotates, the traveling table 73 moves from the origin position to the right in FIG. 1 by the screw action. . The moving speed of the traveling table 73 is detected by the encoder 90, and the control device 94 controls the drive unit 74 so that the traveling table 73 moves at a predetermined speed by the detection signal.

Further, the control device 94 uses the detection signals of the rotation speed and the rotation phase of the blanket cylinder 57 to detect the travel table 73.
When the print medium 80 moves directly under the blanket cylinder 57, the drive speed and the drive timing of the drive unit 74 are controlled so that the print medium 80 moves while being in contact with the blanket 60. The image of the first color transferred from the plate cylinder 62 to the blanket 60 as shown in FIG. 1 is accurately transferred to a predetermined position of the printing material 80.

When the traveling table 73, on which the printed matter 80 having the first color printed thereon is mounted, reaches the position shown by the solid line in FIG.
Detects this and stops the traveling, and the printing of the first color is completed. When the printing of the first color is completed, the traveling table 73 returns to the origin position shown by the chain line for the printing of the second color. Upon this return, when the predetermined rotation phase control device 94 of the blanket cylinder 57 detects the detection signal of the encoder 88, the control device 94 drives the drive unit 74 at a faster speed than before.
The blanket 57 is controlled by the drive unit 74 so that the traveling table 73 passes directly below the blanket cylinder 57 while the blanket cylinder 57 directs the notch 58 directly below. 60 and substrate 80
The traveling table 73 returns to the original position without contacting with and without soiling or damaging them. After repeating such operations to perform printing in three colors, the printed material feeding / discharging device 51 discharges the printed printing material 80, thereby completing one printing. When printing the second and third colors, as shown in FIGS. 19 and 20, the image is transferred to the blanket 60 corresponding to the plate cylinder units 61A and 61B of the second and third colors.

Prior to such a printing operation, the registration operation of each plate cylinder 62 is performed. That is, when a trial-printed substrate on which a register mark is printed is fixed on the traveling table 73 and the register mark is read by the inspection camera 95, the read shift amount is calculated by the control device 94, and this control device is controlled. By the control signal of 94, registration in the vertical direction, the horizontal direction, and the twisting direction is performed.

First, the motor 102 is instructed by the controller.
When the motor shaft 102a of FIG. 1 rotates, the spline bearing also rotates, and the nut 110 fitted in the spline rotates. Therefore, the nut 110 and the nut 109 are screwed to each other so that the nut 110 causes the connection plate 113 and the connection holder. Since the plate cylinder 62 moves back and forth along with the 107 and the eccentric bearing 103, and the plate cylinder 62 moves back and forth in the axial direction, the lateral register adjustment is performed.

Next, the motor 116 is instructed by the controller.
When the motor shaft 124 is rotated, the spline shaft 126 is rotated and the spline nut 123 spline-fitted thereto is rotated, and the spline nut 1 is rotated by a screw action.
Since 23 moves in the axial direction with respect to the fixed nut 129, the helical gear 119, which is integral with this in the axial direction, moves in the axial direction, and the helical action causes the helical gear 119 to move in the circumferential direction. As it moves, it is aligned in the vertical direction.

Further, the motor 130 is instructed by the controller.
When the motor shaft 131 of the
34a moves back and forth, and only one end of the plate cylinder 62 moves via the lever 134 and the eccentric bearing 103, whereby the register adjustment in the twist direction is performed. 10 and 11 show another embodiment of the printing machine according to the present invention, FIG. 10 is a schematic side view of the printing machine, and FIG. 11 is a front view of the printing apparatus. The members having the same configurations as the members shown in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted. In this embodiment, racks 89 that mesh with large gears 84 fixed to both end shafts of the blanket cylinder 57 are provided on both left and right sides of the traveling table. Then, at least from the blanket cylinder 57 to the traveling table 73 side printing object 8
During the image transfer to 0, the large gear 84 and the rack 89 mesh with each other, and the blanket cylinder 5 at the meshing point of these gears 84, 89.
The motor 85 and the drive unit 74 are controlled so that the moving speeds of the moving table 7 and the traveling table 73 are different. Since the blanket cylinder 57 and the traveling table 73 are drivingly connected by both gears 84 and 89, when the image is transferred from the blanket cylinder 57 to the printing object 80 on the traveling table 73 side, the blanket cylinders 57 of both gears 84 and 89 are transferred. Since the moving speed of the printed material 80 is the same as that of the printed material 80,
4 and both gears 84 and 89 are forcibly loaded, and the backlash at the meshing point of both gears 84 and 89 is absorbed.

Next, the device for attaching / detaching the printing cylinder to / from the printing material and the gap adjusting device in this embodiment will be described. 12 is a front view of the attaching / detaching device, FIG. 13 is a side view of the same, and FIG.
4 is a plan view of the same. In these figures, the outer eccentric bearing 140 is provided in the bearing holes 56a of the left and right frames 56.
Is rotatably supported by the outer eccentric bearing 140
An inner eccentric bearing 141 is rotatably supported by an inner circumferential circle 140a of the inner circumferential circle 140a.
An end shaft 57a of the blanket cylinder 57 is rotatably supported by 41a.

The inner eccentric bearing 141 is the outer eccentric bearing 14
The inner circumference circle 141 that supports the center a of the outer circumference circle 141b that is axially supported by the inner circumference circle 140a of 0 and the end shaft 57b of the blanket cylinder 57.
The center b of a is eccentric only by the symbol s in the figure,
In the outer eccentric bearing 140, the center a of the inner circumferential circle 140a that pivotally supports the outer circumferential circle 141b of the inner eccentric bearing 141 and the center of the outer circumferential circle 140b that is pivotally supported in the bearing hole 56a are indicated by reference numeral t in the figure. It is eccentric.

On the other hand, the drive shaft 142 rotatably mounted on the left and right frames 56 is directly connected to the motor 144 supported by the bracket 143 on the frame 56 on one side, and is fixed on the drive shaft 142. The paired left and right bevel gears 145 mesh with the bevel gears 148 on the worm shaft 147 supported by the frame 56 via the brackets 146.

A worm 149 is mounted on the worm shaft 147 which is driven and rotated by the motor 144 in this manner. The worm 149 is connected to the worm wheel 150 fixed to the outer eccentric bearing 140. I'm in mesh. Further, the connecting shaft 151 is attached to the left and right frames 56.
Is rotatably mounted on the blanket cylinder 57 diagonally below, and a lever 152 is attached to one end of the connecting shaft 151. An air cylinder 153 is rotatably supported by the frame 56 on one side. The working end of the piston rod 154 is pivotally attached to the free end of the lever 152, and the left and right sides of the connecting shaft 151. The free end of the lever 155 axially attached to both ends and the inner eccentric bearing 141 are connected by a connecting lever 156 pivotally attached to both ends.

By doing so, the air cylinder 152
When the piston rod 153 moves forward and backward, the lever 151 swings, and the left and right levers 154 swing through the connecting shaft 150, the inner eccentric bearing 141 rotates, and the blanket cylinder 5 is eccentric.
7 is configured to be attached to and detached from the printing object 80. Further, when the motor 144 rotates and the left and right bevel gears 145 on the connecting shaft 142 rotate with the blanket cylinder 57 attached, the outer eccentric bearing 140 rotates via the bevel gear 148, the worm 149, and the worm wheel 150. ,
Since the blanket cylinder 57 moves up and down slightly due to the eccentric action, the clearance adjustment corresponding to the thickness of the material to be printed 80 is performed.

With this configuration, when returning to the origin position of the traveling table 73, the piston rod of the air cylinder 153 advances and retreats and the lever 152 swings, and the left and right levers via the connecting shaft 151. When 155 swings, the inner eccentric bearing 141 rotates to move the blanket cylinder 57 in a direction away from the material to be printed 80 due to the eccentric action, and the large gear 84 moves to a position where it does not mesh with the rack 89. Even when the table 73 passes directly under the blanket cylinder 57, the blanket 60 and the print object 80 do not come into contact with each other, and the large gear 84 and the rack 89 do not mesh with each other. The traveling table 73 returns to the original position without being soiled or damaged.

When the traveling table 73 returns to the origin position, the air cylinder 153 operates and the inner eccentric bearing 141
Is rotated to move the blanket cylinder 57 to a position where the blanket 60 and the printing object 80 are in contact with each other, but the clearance adjustment corresponding to the thickness of the printing object 80 is performed. That is, when the motor 144 rotates and the left and right bevel gears 145 rotate on the connecting shaft 142, the bevel gear 148 and the worm 14 are rotated.
9. Outer eccentric bearing 140 via worm wheel 150
Is rotated and the blanket cylinder 57 is slightly moved up and down due to the eccentric action, so that the clearance adjustment corresponding to the thickness of the printing object 80 is performed.

When the encoder 88 detects the rotation phase of the blanket cylinder 57 rotated by the motor 851, and the control device 94 detects the predetermined rotation phase, the drive unit 74 is driven and the traveling table 73 is displayed. When moving to the right of 10, the image is transferred from the blanket 60 to the printing object 80, but in the present embodiment, the blanket 60.
The large gear 84 and the rack 89 mesh with each other when the image is transferred from the print medium 80 to the printed material 80, and both gears 84,
The motor 85 and the drive unit 7 are arranged so that the moving speeds of the blanket cylinder 57 and the traveling table 73 at the meshing point 89 are different.
4 is controlled, the blanket cylinder 57 and the traveling table 7 are controlled.
When the moving speeds of the gears 3 and 3 are equal, a load is forcibly applied to the motor 85, the drive unit 74, and the gears 84 and 89, and the backlash at the meshing point of the gears 84 and 89 is absorbed, and There is no misalignment in printing due to rush, which improves printing accuracy.

FIG. 15 is a side view of a printing machine showing another embodiment of the present invention. Members having the same constructions as the members shown in the above-mentioned embodiment are designated by the same reference numerals and the description thereof will be omitted. To do. In this embodiment, the circumferential length of the notch 58 of the blanket cylinder 57 is formed larger than that shown in the above-mentioned embodiments. By doing so, in the above-described embodiment, when the traveling speed of the traveling table 73 to the origin position is slow, the traveling table 73 may collide with the image forming portion 59 past the notch 58, resulting in an accident. Feed speed is 4 ~
Although the number is five times, in the present embodiment, there is no such a possibility and the returning speed can be slowed down, so that the design becomes easy.

FIG. 16 is a side view showing the vicinity of a blanket cylinder according to another embodiment of the present invention. Members having the same constructions as those of the above-mentioned embodiment are designated by the same reference numerals and their description is omitted. Omit it. In the present embodiment, the support means for the printed material 80, which was the traveling table 73 in the previous embodiment, is replaced by the impression cylinder 160.
And That is, the impression cylinder 160 is attached to the blanket cylinder 57 on the blanket 60 attached to the image forming portion 58 of the blanket cylinder 57.
Is located below and is in contact with the pressure drum 160, and a paper 161 as a material to be printed is wound around the peripheral surface of the impression cylinder 160 with both ends held by nails or the like.

By doing so, the blanket cylinder 59 and the impression cylinder 1
When 60 and 60 are rotated, the images of the first to third colors transferred from the plurality of plate cylinders 62 to the blanket 60 are transferred to the impression cylinder 16
The paper 161 wound around the impression cylinder 160 while the 0 rotates three times.
Are transferred and overlapped with each other, and three-color printing is performed. The printed paper 161 is taken out from the peripheral surface of the impression cylinder. In this way, when the printing object 80 is made of a flexible material such as paper or cloth, it can be dealt with.

FIG. 17 is a side view showing the vicinity of a blanket cylinder according to another embodiment of the present invention. Members having the same constructions as those in the above-mentioned embodiment are designated by the same reference numerals and the description thereof will be omitted. In this embodiment, the device for attaching / detaching the plate cylinder to the blanket cylinder, which was the slide type in the above-described embodiment, is of a swing type. That is,
In the figure, the three-color plate cylinder units 162A, 162
B and 162C are a pair of left and right sub-frames 1 formed in a triangular shape and pivotally supported by the left and right frames 56.
The sub-frame 163 is rotatably supported by both end shafts of the plate cylinder 62.

On the other hand, on the frame side, the air cylinder 16
4 is swingably supported, and this air cylinder 16
The fourth piston rod is pivotally attached to the swing end of the sub-frame 163. A stopper 165, which is adjustable forward and backward, is provided obliquely below the sub-frame 163 and supported on the frame 56 side. With this configuration, when the piston rod of the air cylinder 164 is moved back and forth, the subframe 163 swings and the plate cylinder 62 is attached to and detached from the blanket 60 of the blanket cylinder 57. The swinging end of the sub-frame 163 is restricted by the stopper 165. As for the plate cylinder units 162B and 162C, only the plate cylinder 62 is shown and the detailed illustration is omitted.

[0080]

As is apparent from the above description, according to the first aspect of the invention, the printing cylinder rotatably supported on the frame side and the reciprocating tangential direction of the printing cylinder which supports the object to be printed. In a printing machine that includes a driven supporting unit and transfers an image formed on the printing cylinder to the printing target to perform printing, a printing cylinder driving device that rotates the printing cylinder and the supporting unit reciprocate. A supporting unit driving device for moving the image forming unit, an image forming unit formed on the peripheral surface of the printing cylinder side by side in the circumferential direction, and an image transferred from one of the image forming units to the printing medium during the forward movement. Releasing means for separating the printing cylinder and the material to be printed from each other when the supporting means is returned, and detachably provided to the respective image forming portions corresponding to the respective image forming portions. Transfer the image to By providing several image forming cylinders, it is possible to print multiple colors simply by moving the support means a plurality of times, so there is no need to replace the substrate, and there is no misregistration between the colors. The quality of the printed matter is improved, the productivity is greatly improved, and printing can be performed without being limited by the material of the printed matter.

According to a second aspect of the present invention, a printing cylinder gear fixed to the printing cylinder side and a supporting means gear meshing with the printing cylinder gear and fixed to the supporting means side are provided.
The releasing means is configured as a detaching means for separating the printing cylinder from the printing object and releasing the meshing between the printing cylinder gear and the supporting means gear, and the printing object supported by the supporting means from the printing cylinder. By controlling the printing cylinder driving device and the supporting device driving device so as to eliminate the backlash at the meshing point between the printing cylinder gear and the supporting device gear that mesh during image transfer to Since the backlash of the gear at the meshing point is eliminated, the printing deviation is eliminated and the quality of the printed matter is improved.

According to a third aspect of the present invention, there are provided a rotational phase detector connected to the printing cylinder to detect the rotational phase of the printing cylinder, and a supporting means position detector to detect the position of the supporting means. Since the supporting means driving device is controlled by the detection signals of these detectors, the rotation of the printing cylinder for printing and the movement of the supporting means can be performed with high accuracy, and the quality of the printed matter can be improved. Is further improved.

According to a fourth aspect of the present invention, an inspection camera which is provided in the movement path of the supporting means and which reads the register mark of the preprinted printed matter which is supported and moved by the supporting means, and a signal from the inspection camera are used. The quality of the printed matter is further improved by providing a registration device that controls and registers the image forming cylinder. According to a fifth aspect of the present invention, a bearing that is rotatably supported on the frame side and that rotatably supports the printing cylinder, and a rotating unit that rotates the bearing are provided, and the bearing is provided. By configuring as an eccentric bearing in which the center of the outer circumferential circle that is axially supported in the bearing hole of the frame and the center of the inner circumferential circle that axially supports the printing cylinder are configured as eccentric bearings, the printing pressure of the printing cylinder with respect to the printing object is constant The print quality can be improved.

In the invention according to claim 6, by embedding the heater in the outer peripheral portion of the printing cylinder, the temperature of the image forming portion of the printing cylinder becomes uniform at each position, so that the printing to be transferred to the printing material is performed. The density of the image becomes uniform, and the print quality is improved.

[Brief description of drawings]

FIG. 1 is a schematic side view of a printing machine.

FIG. 2 is a side view of a main part of the printing machine.

FIG. 3 is a plan view of the printing apparatus.

FIG. 4 is a front view of the printing apparatus.

FIG. 5 is a cross-sectional view of the lateral register device.

FIG. 6 is a cross-sectional view of the vertical register device.

FIG. 7 is a schematic front view of a twist register device.

FIG. 8 is a schematic front view of a printing machine shown for explaining the gap adjusting device.

FIG. 9 is a block diagram.

FIG. 10 is a schematic side view of a printing machine showing another embodiment of the present invention.

FIG. 11 is a front view of a printer according to another embodiment of the present invention.

FIG. 12 is a front view of an attaching / detaching device showing another embodiment of the present invention.

FIG. 13 is a side view of an attachment / detachment device showing another embodiment of the present invention.

FIG. 14 is a plan view of an attaching / detaching device showing another embodiment of the present invention.

FIG. 15 is a side view of a printing machine according to another embodiment of the present invention.

FIG. 16 is a side view of the vicinity of a printing cylinder showing another embodiment of the present invention.

FIG. 17 is a side view of the vicinity of a printing cylinder showing another embodiment of the present invention.

FIG. 18 is a side view showing the vicinity of the printing cylinder for explaining the printing operation.

FIG. 19 is a side view of the vicinity of the printing cylinder for explaining the printing operation.

FIG. 20 is a side view of the vicinity of the printing cylinder for explaining the printing operation.

FIG. 21 is a schematic side view of a conventional four-color printing machine.

FIG. 22 is a plan view of the conventional printing machine shown without the printing cylinder.

FIG. 23 is a front view as seen from IIXI in FIG. 22.

FIG. 24 is a side view of a conventional printing machine.

FIG. 25 is a side view of a conventional printing machine, which is shown at a meshed portion of gears.

[Explanation of symbols]

 52 printing device 55 printing machine 56 frame 56a bearing hole 57 blanket cylinder 57a end shaft 58 notch 59 image forming portion 60 blanket 61A first color plate cylinder unit 61B second color plate cylinder unit 61C third color plate cylinder unit 62 plate cylinder 72 Guide Rail 73 Travel Table 74 Drive Unit 76 Ball Screw Shaft 80 Printed Material 84 Large Gear 85 Motor 86 Pinion 87 Encoder 88 Encoder 88 Rack 90 Encoder 93 Proximity Sensor 94 Control Device 95 Inspection Camera 102 Motor 116 Motor 118 Helical Gear 119 Helical gear 130 Motor 135 Eccentric bearing 135a Outer circle 135b Inner circle 136 Air cylinder 140 Outer eccentric bearing 140a Inner circle 141 Inner eccentric bearing 141a Inner circle 141b Outer circle 142 Drive shaft 144 motor 153 air cylinder 159 rod-shaped heater 160 impression cylinder 161 paper

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B41F 13/28 33/14

Claims (6)

[Claims] 1. An image formed on the printing cylinder, comprising: a printing cylinder rotatably supported on a frame side; and support means for supporting an object to be printed and reciprocally driven in a tangential direction of the printing cylinder. In a printing machine for transferring to the printing medium to perform printing, a printing cylinder driving device for rotating the printing cylinder, a supporting means driving device for reciprocating the supporting means, and a circumferential direction on a circumferential surface of the printing cylinder. And an image forming portion formed in parallel with each other, and an escape for separating the printing cylinder and the printing material when the supporting means in which the image is transferred from one of the image forming portions to the printing material during the forward movement is returned. And a plurality of image forming cylinders that are detachably attached to the image forming units and that correspond to the image forming units and that transfer images to the image forming units. Printing machine. 2. A printing cylinder gear fixed to the printing cylinder side,
A support means gear that meshes with the printing cylinder gear and is fixed to the support means side is provided, and the escape means separates the printing cylinder from the material to be printed and meshes the printing cylinder gear with the support means gear. To remove the backlash at the meshing point between the printing cylinder gear and the supporting means gear that mesh during the image transfer from the printing cylinder to the printing material supported by the supporting means. 2. The printing machine according to claim 1, further comprising: controlling the printing cylinder driving device and the supporting means driving device. 3. A rotation phase detector connected to the printing cylinder for detecting a rotation phase of the printing cylinder, and a supporting means position detector for detecting a position of the supporting means are provided, and detection signals of these detectors are provided. 2. The printing press according to claim 1, wherein the supporting means driving device is controlled by the following. 4. An inspection camera, which is provided on a moving path of the supporting means and reads a register mark of a preprinted printed matter which is supported and moved by the supporting means, and an image forming cylinder of the image forming cylinder which is controlled by a signal of the inspection camera. The printing machine according to claim 1, further comprising a register device for registering the register. 5. A bearing, which is rotatably supported on the frame side and rotatably supports the printing cylinder, and a rotating means for rotating the bearing, and the bearing is provided on the frame. 2. The printing machine according to claim 1, wherein an eccentric bearing in which the center of an outer circumference of the hole and the center of an inner circumference of the printing cylinder are eccentric to each other. 6. The printing machine according to claim 1, wherein a heater is embedded in an outer peripheral portion of the printing cylinder.