JPH0737133B2 - Plate cylinder with support shaft and plate cylinder cleaning device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing plate cylinder with a support shaft and a plate cylinder cleaning device.

[0002]

[Prior art example and its problems] Conventionally, the gravure printing plate cylinder is washed by immersing the plate cylinder in a tank filled with a solvent and manually rubbing the peripheral surface of the plate cylinder with a brush or the like to wash off the ink. Ultrasonic cleaning is performed in the process. The work environment is poor due to the use of a volatile solvent to wash off the ink, which makes it difficult to secure workers. In order to automate a series of cleaning operations, it is indispensable to convey the plate cylinder and hold it at the cleaning position, but the plate cylinder is a hollow body with tapered holes at the centers of both ends, and the plate cylinder itself has no support shaft. not exist. Two tapered support shafts provided in the printer body are fitted into the tapered holes at both ends of the plate cylinder, and the support shaft (2) is rotationally driven to be integrated with the support shaft (2). ) Is rotationally driven.

Therefore, after the printing is finished, the plate cylinder is removed from the printing machine, and the plate cylinder is washed and conveyed for the work by grasping the peripheral surface of the plate cylinder or penetrating the plate cylinder for a long length. The shaft must be inserted and both ends of the shaft must be supported.
Grasping the circumference of the plate cylinder will damage the plate,
Also, the gripped portion cannot be washed.

On the other hand, a space more than twice the length of the plate cylinder is required for inserting and removing the shaft to and from the plate cylinder, and the plate cylinder having tapered holes at both ends can be easily attached and detached. The shaft could not be installed. Due to the above reasons, the automatic cleaning device for the plate cylinder has not been realized. The present invention discloses an automatic cleaning device for automatically cleaning a plate cylinder having a support shaft that can be easily attached and detached and a plate cylinder with a support shaft.

[0005]

The plate cylinder with a support shaft of the present invention is formed in a hollow cylindrical body, and both ends thereof are closed by end plates (31), and a taper hole (32) is formed in the center of the end plate to narrow the depth. A plate cylinder with a supporting shaft comprising a plate cylinder (3) and supporting shafts (2) and (2) detachably attached to both ends of the plate cylinder, the supporting shaft (2) having the plate at the tip. A cylindrical body (21) having a head (22) that can be fitted in the tapered hole (32) of the body (3) and a head (2) that rotatably penetrates through the cylindrical body (21).
A shaft body (29) having a screw shaft (291) at the through end on the 2) side and an engagement groove (293) at the base end, and a slide member screwed to the screw shaft (291) of the shaft body (29). (200), notch grooves (202) formed at equal intervals in the circumferential direction on the outer periphery of the slide member (200), and the support shaft (2)
Of the claw pivotally supported by the slide member (200) so as to be swingable in a plane including the shaft center of the shaft body (29) and provided across the notch (27) formed in the outer periphery of the head (22) of The plate (203), the cam surface (28) formed at the tip of the head (22) of the support shaft (2), the tip side of which is inclined low and the claw plate (203) is in contact, and disposed on the slide member (200) Spring (206) that biases the claw plate (203) toward the cam surface (28)
And the free end of the claw plate (203) projects outward from the tapered surface (23) in a state where the claw plate (203) is in contact with the high side of the cam surface (28). Further, in the automatic cleaning device for a plate cylinder of the present invention, the support shaft (2) is detachably attached to both ends of the plate cylinder (3) having a hollow cylindrical plate cylinder (3) having the tapered holes (32) at the both ends.
A cleaning device for attaching (2) and supporting the support shaft (2) to transfer the cleaning line, wherein the support shaft mounting station B, the pre-cleaning station C, the ultrasonic cleaning station F, and the drying are provided from the upstream side to the downstream side. A station G and a support shaft removing station I are provided, and the support shaft mounting station B supports the lower peripheral surface of the plate cylinder (3) below a transition path in which the plate cylinder (3) moves orthogonal to the axis. A pair of support shaft attachment devices (4) and (4) are arranged opposite to each other on both sides of the pedestal (400) and the transition passage, and the support shaft attachment device (4) approaches the transition passage of the plate cylinder in a horizontal plane. A slide base (41) is provided so as to be separable, and a support shaft mounting base (43) is mounted on the slide base (41) and a shaft body (29) of the support shaft (2) is disposed outside the mounting base (43). A rotary tool (44) that can be engaged with the engagement groove (293) formed at the base end is provided. (3) rotary support device for rotatably supporting the support shaft (2) on both sides of the transition passage of
(60) is provided, and a brush (67) for rubbing against the plate cylinder while supplying the cleaning liquid above the transfer path is provided so as to be able to come into contact with and separate from the plate cylinder. In the ultrasonic cleaning station F, the plate cylinder (3) is provided. Is equipped with an ultrasonic cleaning device (8) for ultrasonic cleaning by immersing the liquid in a cleaning liquid tank, and a drying and cleaning station G is equipped with a finishing cleaning / drying device (100) for cleaning the cleaning liquid and drying with warm air. At the detaching station I, a mounting table (401) for supporting the lower part of the peripheral surface of the plate cylinder (3) below the transfer path of the plate cylinder (3) and the supporting shaft mounting device (4) on both sides of the transfer path are provided. The supporting shaft removing device (4a) having the above-mentioned structure is arranged oppositely, and the plate cylinder (3) is transferred from the supporting shaft mounting station B to the supporting shaft removing station I, and the conveying means for intermittently conveying to stop at each station in between is a plate cylinder. A cradle (74) or a hanging hook (903) for supporting the support shaft (2) protruding from both ends of (3) is provided. To have.

[0006]

[Operation and effect] Support base of the support shaft mounting station B
Place the plate cylinder (3) on which the support shaft is to be mounted on (400), and turn the support shaft (2) to the inside of the head (22) on each mounting table (43) of the support shaft mounting device (4) (4). Mount (state on the left side of Fig. 3). The slide base (41) of the support shaft attaching device (4) moves to the plate cylinder (3) side, and the head (22) of the support shaft (2) fits into the taper hole (32) of the plate cylinder (3). The rotary tool (44) engages with the engaging groove of the shaft (29).
The shaft (29) is rotated by engaging with (293) and rotating (state on the right side of FIG. 3).

The rotation of the shaft (29) causes the screw shaft (2
The slide member (200) screwed to the (91) is retracted by the screw thrust, and the claw plate (203) on the slide member (200) is guided by the cam surface (28) of the head (22) and retracts, thereby The free end of the plate (203) projects to the outside of the tapered surface (23) of the head (22), and the slide member (200) is further retracted so that the claw plate (203) becomes a plate cylinder.
The inner surface of the end plate (31) of (3) is pressed outward (the state shown from the center line L in FIG. 1 shifts to the state below).

As described above, the claw plate (203) is the end plate of the plate cylinder (3).
By pressing the (31) from the inside to the outside, the head (22) strongly bites into the tapered hole (32), and the support shaft (2) and the plate cylinder (3) are integrated. Since the taper surface (23) of the head (22) is closely fitted to the taper hole (32) of the plate cylinder (3), the axis of the plate cylinder (3) and the support shaft (2) are surely aligned. To do. The plate cylinder (3) having support shafts (2) protruding from both ends is supported by the support shaft (2) and is conveyed to the pre-cleaning station C by the conveying means, and the rotation supporting device is provided.
The support shaft (2) is rotatably supported and rotationally driven by (60).

The brush (67) contacts the plate cylinder (3) and supplies the ink solvent to rub the surface of the plate cylinder to wash off the ink.

Next, the plate cylinder (3) is conveyed to the ultrasonic cleaning station F while supporting the support shaft (2) by the conveying means.
It is immersed in the tank (81) of the ultrasonic cleaning device (8) for ultrasonic cleaning.

Next, the supporting shaft (2) is supported by the conveying means, and the plate cylinder (3) is sent to the drying station G, where the washing liquid is washed off and hot air drying is performed. Plate cylinder after the drying process
(3) supports the supporting shaft (2) by the conveying means and is sent to the supporting shaft removing station I.

At the support shaft removing station I, the support shaft removing device (4) removes the support shaft (2) in the reverse order of the operation of the support shaft attaching device (4) at the support shaft attaching station B.

As described above, the support shaft is detachably attached to the plate cylinder (3).
By attaching (2), the plate cylinder can be transported to each station of the cleaning device while supporting the support shaft (2), and the surface of the plate cylinder is not damaged.

Also, the attachment and detachment of the support shaft (2) is
It can be automatically performed by the support shaft attaching device (4) and the support shaft removing device (4a), and the support shaft (2) has the tapered surface (23) of the head (22) at the end of the support shaft (2). Part taper hole (32)
The plate cylinder (3) and the support shaft (2) are surely aligned with each other by being fitted to the plate cylinder (3), so that the plate cylinder (3) can be stably rotated and conveyed during the cleaning operation.

[0015]

EXAMPLE FIG. 1 shows a state in which a support shaft (2) is fitted in a plate cylinder (3). Above the center line L of the support shaft (2), the support shaft (2) is unlocked and supported. The shaft (2) can be pulled out, and the lower part is locked so that the support shaft (2) cannot be pulled out.

A plate cylinder with a support shaft A hollow cylinder cylinder plate (3) has both ends closed by end plates (31), and a taper hole (32) is formed at the center of the end plates to narrow the depth. Plate cylinder
The support shaft (2) detachably attached to both ends of (3) has a tapered hole (2) of the support shaft (2) at the tip of a cylinder body (21) having a thickness of about 1/2 of the plate cylinder (3). Frustum-shaped head (2
2) is projected, and the flange (24) is projected on the large-diameter base end side of the head (22).

An annular recess (25) formed on the inner surface of the flange
A seal ring (26) which is not attacked by the ink solvent is attached to the. The shaft body (29) is inserted rotatably through the cylindrical body (21), and the screw shaft (29) is attached to the end of the shaft body (29) on the head (22) side.
1), a flange (292) is formed on the base end side and an engagement groove (293) is formed on the base end face.

The flange (292) hits the thrust bearing (296) fitted in the enlarged hole (295) at the base end of the tubular body (21), and the sleeve (297) screwed to the proximal end surface of the tubular body (21). Seal Ring (298)
The brim (292) is pressed against the thrust bearing (296) via. The slide member (200) and the retaining nut (207) are screwed into the screw shaft (291) of the shaft body (29), and the nut is a split pin.
Detents are provided by (208).

Notched grooves (202) are provided at equal intervals in the circumferential direction on the outer periphery of the slide member (200), and the shaft body (2
The claw plate (203) is fitted so as to be swingable in a plane including the shaft center of (9) and is pivotally supported by the shaft (205), and the free end of the claw plate (203) is the outer circumference of the head (22). When the support shaft (2) is unlocked with respect to the plate cylinder (3), the free end of the claw plate (203) is slidably fitted in the notch (27) opened in the head (22). It is recessed from the tapered surface (23).

A spherical contact protrusion (209) is provided on the inner surface of the claw plate (203) on the free end side. A cam surface (28) is formed at the tip of the head (22), the tip side of which is inclined low and is in contact with the contacting protrusion (209) of the claw plate (203).

The slide member (200) has a torsion spring (2) for urging the claw plate (203) in the closing direction, that is, the cam surface (28) side.
06), the spring (206) fits into the pivot (205) of the claw plate (203), one end of which is the bottom surface of the notch groove (202) of the slide member (200), and the other end of which is the claw plate (203). ) Is applied to the hit step (204).

The taper surface (23) of the head (22) is closely fitted in the taper hole (32) of the plate cylinder (3), and the seal ring (26) on the inner surface of the flange (24) is the end surface of the plate cylinder (3). And the claw plate (203) presses the inner surface of the end plate (31) outward, and the support shaft (2) is attached to the plate cylinder (3).
Is installed in a fixed state.

Cleaning device (FIGS. 5 and 7) The cleaning device for cleaning and removing the ink adhering to the surface of the plate cylinder (3) is a push-up station A from the upstream side to the downstream side, a support shaft mounting station B, and pre-cleaning. Station C, first
A waiting station D ₁ , a second waiting station D ₂ , a hoisting station E, an ultrasonic cleaning station F, a drying station G, a sending station H, a support shaft removing station I are provided, and a support shaft mounting station B and a hoisting station E are provided. A transport device (7) for carrying the plate cylinder (3) on a carriage (71) in between, and a suspension transfer device (9) for lifting and transporting the plate cylinder (3) between the hoisting station E and the sending station H. ), A transfer carriage (300) for placing and transferring the plate cylinder (3) is provided between the sending station H and the support shaft removing station I. Between the support shaft mounting station B and the delivery station H, the intervals between the stations are the same (this interval is hereinafter referred to as a feed stroke).

Push-Up Station A (FIG. 5) Push-up Station A is a gently inclined stand (1
2) The plate cylinders (3) placed side by side are pushed up one by one to the supporting shaft mounting work height position of the supporting shaft mounting station B by the lifting device (5), and the standby table (12)
A guide base (51) is provided obliquely upward from a position below the downstream end of the guide shaft toward the support shaft mounting station B, and the guide base (5)
1) The push-up member (52) is slidably arranged on the upper side of the guide stand (51) linked to the cylinder (53), and is stopped by hitting the upper end of the guide stand (51). The plate cylinder (3) at the end is pushed up by the push-up member (52) and placed on the pedestal (400) on the support shaft mounting station B described later.

A stopper (13) is provided on the downstream side of the stand (12) so that the stopper (13) can retract in the transfer path of the plate cylinder (3). The stopper (13) is the second plate cylinder (3) from the downstream end on the stand (12).
It supports a) and prevents the plate cylinder (3a) from contacting the plate cylinder (3) at the downstream end.

[0026]Support shaft mounting station B (Fig. 3, Fig.
4, Fig. 5) In the support shaft mounting station B, the plate cylinder (3) is orthogonal to the shaft center.
The lower part of the peripheral surface of the plate cylinder (3) below the transition path
Pedestal (400) and a pair of support shafts on both sides of the transition path
The cage devices (4) and (4) are arranged opposite to each other.

Support shaft mounting device (4) (FIG. 3) The support shaft mounting device (4) on the left side of FIG. 3 mounts the support shaft (2) on the plate cylinder.
The state before fitting to (3), the right side shows the state where the tip of the support shaft (2) is fitted to the plate cylinder (3).
(4) As shown on the left side, (4) stands by in a state of being separated from the plate cylinder (3), and at the same time, advances to the plate cylinder (3) side to the right side state. Each supporting shaft mounting device (4) is provided with a slide base (41) that can approach and separate from the transition path of the plate cylinder in a horizontal plane, and a slide driving cylinder (42) is connected to the slide base (41). There is.

A support shaft mounting base (43) for mounting the cylindrical body (21) of the support shaft (2) on the slide base (41) and holding it horizontally, and a guide cylinder (47) on the outside of the mounting base (43). ) Has been deployed. A clamp cylinder (40) is arranged above the mounting table (43), and the clamp cylinder (40) is mounted on the mounting table (43) with the support shaft (2).
The cylinder body (21) is pressed from above to detent the cylinder.

A slide shaft (465) is slidably and rotatably provided on the guide cylinder (47), and the slide shaft (465) is provided.
A rotary tool (44) is provided at the inner end of the shaft so as to be able to move forward and backward with respect to the slide shaft and to rotate integrally with the slide shaft (465), and is urged toward the forward side by a spring (468).

The rotary tool (44) is the shaft body (29) of the support shaft (2).
It engages and disengages with the engaging groove (293) formed at the base end of the.
A cylinder (467) for slide drive is connected to the slide shaft (465), and a motor (45) is further connected via a drive gear (461), an intermediate gear (462), a driven gear (463) and a torque limiter (464).
Are connected.

When the support shaft (2) is placed on the platform (43),
The clamp cylinder (40) operates to mount the support shaft (2) on the mount (4
3) Fixed on the slide base (4
1) advances and the head (22) of the support shaft (2) is fitted into the taper hole (32) of the plate cylinder (3) waiting at the support shaft mounting station B (from the center line L in FIG. 1). (State above).

The cylinder (467) and the motor (45) are actuated to move the slide shaft (465) forward while rotating, and the rotary tool (44) at the tip of the slide shaft moves to the shaft body (29) of the support shaft (2). Engagement groove at the end
Fit in (293) and rotate shaft (29). When the shaft body (29) rotates, the slide member (200) retracts in the direction away from the retaining nut (207) by the screw thrust generated on the screw shaft (291) at the tip of the shaft body, and then slides on the slide member (200). The pivoted claw plate (203) rides on the high side of the cam surface (28) against the torsion spring (206), the free end of the claw plate (203) opens, and the tapered surface () of the head (22) ( Overhang more than 23). When the shaft body (29) further rotates in the above state and the slide member (200) retracts, the claw plate (203) presses the end plate (31) of the plate cylinder (3) from the inner side to the head (22). The taper surface (23) of () tightly fits into the taper hole (32) of the end plate (31) so that the support shaft (2) can be fixedly attached to the plate cylinder (3) (center line L in FIG. 1). Below).
When the claw plate (203) strongly presses the inner surface of the end plate (31), the torque limiter (464) of the support shaft attaching device (4) works, and the rotation of the driven gear (463) is not applied to the slide shaft (465). I can't get it.

When the mounting of the support shaft (2) on the plate cylinder (3) is completed, the cylinder (42) is actuated to retract the support shaft mounting device (4) to its original position, and further the clamp cylinder (40). Operates to release the pressure on the cylindrical body (21) (state on the left side in FIG. 3). The plate cylinder (3) with a support shaft is
As described below, the pre-washing station C, the first waiting station D ₁ , the second waiting station D ₂ and the lifting station E are intermittently conveyed by the feed stroke.

The transfer device (7) (FIGS. 5 and 6) provided between the support shaft mounting station B and the lifting station E, which will be described later, has a rail (70) on the base (1). A bogie that travels back and forth on (70) with a cylinder (15).
An elevator (72) is arranged on the (71) so that it can be raised and lowered, and the elevator (72)
The lifting cylinder (76) is connected to.

The lift table (72) is formed in a rectangular shape that is long in the transfer direction of the plate cylinder (3), and four receiving tables (74) are provided on both side edges in the longitudinal direction at intervals corresponding to the feed stroke. The V-shaped notch (75) is formed at the upper end of the pedestal (74) so as to face each other and project upward. The lifting platform (72) has a large tray (73) between the pedestals (74) (74) on both sides, and as will be described later, the plate cylinder (3)
Store the ink solvent to be dripped from.

The elevating table (72) rises, the supporting shafts (2) projecting from both ends of the plate cylinder (3) are placed on the V-shaped notches (75) of the receiving table (74), and lifted up. 71) advances by the feed stroke. Next, the lift table (72) descends to transfer the plate cylinder to each station as described later. Further, when the lifting platform (72) descends to a position where it does not interfere with the backward movement of the carriage, the carriage (71) retracts to its original position. The elevating table (72) rises again, and the above-described operation is repeated to intermittently convey the plate cylinder.

Pre-cleaning station C (FIG. 5) The pre-cleaning station C is provided with a rotary support device (60) for receiving the support shaft (2) of the plate cylinder (3). The receiving rolls (61) (61) are rotatably supported close to each other, and a motor (63) is connected to the rolls via a rotation transmission means (62).

Above the pre-cleaning station C, a support table (6
6) is provided, and a plurality of rotating brushes (67) connected to the lateral feed device (64) and the elevating device (65) are provided on the support base (66) at equal intervals along the longitudinal direction of the plate cylinder. It Ink solvent is supplied to the rotary brush (67) from the tank (68) when the brush is rotated by a rotary drive device (not shown).

The plate cylinder (3) is supported by the support shafts (2) at both ends by the rotary support device (60). In this state, the rotary brush (67) descends to melt the ink with the ink solvent. The plate cylinder (3) is rubbed and laterally moved in the axial direction of the plate cylinder while rotating to remove the ink adhering to the peripheral surface of the plate cylinder.

The ink solvent dripping from the plate cylinder (3) accumulates in the tray (73) of the lift table (72) and is discharged by a hose (not shown) connected to the bottom of the tray (73). When the predetermined cleaning operation is completed, the rotary brush (67) rises and returns to its original position.

The first standby station D ₁ and the second standby station
Shon D ₂ (FIG. 5, FIG. 6) before the washing station first wait station D ₁ of the downstream and C, the second wait station D _2, in order to gain time for dropping the ink solvent attached to the plate cylinder (3) Stuff, plate cylinder
The pedestals (77), (77), (78) and (78) for receiving the support shaft (2) of the plate cylinder (3) are provided on both sides of the transition path of (3).

Lifting Station E (FIG. 7) The lifting station E holds the plate cylinder 3 in order to lift the plate cylinder 3 and move it to the next ultrasonic cleaning station F. Cradles (79) (79) for receiving the support shaft (2) are provided at both ends of the road.

Suspension Transfer Device (9) (FIGS. 7, 8 and 9) The suspension transfer device (9) is a rectangular support frame (14) of four pillars arranged across the transition path of the plate cylinder (3). The elevating frame (91) of the elevating frame (91) is arranged so that it can be moved up and down, and the moving frame (90
0) is provided, and an arm (902) for scratching the support shaft (2) of the plate cylinder (3) is provided on the moving frame (900) so as to project downward.

At the upper four corners of the support frame (14), guide shafts (9
2) is arranged vertically, and an elevating frame (91) is slidably supported by the guide shaft. The support frame (14) has sprocket (94) (95) pivotally supported near both ends of each guide shaft, and both ends of a chain (93) stretched between the sprocket (94) (95) are lifted (91). The upper sprocket (94) is connected to the motor
Connected to (96). The elevating frame (91) is raised or lowered by switching the forward and reverse rotations of the motor (96).

Parallel rails (97) and (97) are provided in the elevating frame (91) toward the transport direction of the plate cylinder (3), and a moving frame (wheels 901) is provided on the rail (97). 900) is movably arranged, and three arms (902) are provided on both sides of the moving frame (900) so as to face each other at intervals corresponding to the feed stroke. The support shaft of the plate cylinder (3) is attached to the tip of the arm (902).
A hook (903) for scratching (2) is formed.

A slide base (904) is provided on the elevating frame (91) so as to be slidable along a rail (97), and a cylinder (906) provided on the slide base (904) moves a moving frame (90).
It is connected to 0). Further, a slide base drive cylinder (905) is provided on a support plate (907) fixedly provided across the rails (97) (97), and the cylinder (905) is connected to the slide base (904). is doing.

The suspension transfer device (9) lowers the moving frame (900) together with the elevating frame (91) and operates the slide base drive cylinder (905) at the lower end to slightly move the moving frame (900). Move forward to fit the support shaft (2) on the hook (903). Then the lifting frame (91)
At the same time, the moving frame (900) is raised, the moving frame driving cylinder (906) is operated at the rising end, the moving frame (900) is advanced by the feed stroke, and the plate cylinder (3) is conveyed.

The elevating frame (91) descends and transfers the plate cylinder (3) to the next station. Further, when the lift table (91) is lowered to the height position where the hook (903) is evaded, the slide base drive cylinder (905) is activated to move the moving frame (900) and thus the arm (9).
02) retracts a little and the hook (903) comes off the support shaft (2). The elevating frame (91) rises together with the moving frame (900), and further retracts to return to the original position. Repeat the above operation to print
(3) is intermittently fed one pitch at a time.

Ultrasonic Cleaning Station F (FIGS. 7 and 9) An ultrasonic cleaning device (8) is provided in the ultrasonic cleaning station F, and the cleaning tank (81) at the top opening of the ultrasonic cleaning device (8) is installed. A notch (82) into which the support shaft (2) of the plate cylinder (3) fits is formed on both sides.

Drying Station G (FIG. 10) The drying station G is provided with a finishing washing / drying apparatus (100) for washing off the washing liquid of the ultrasonic washing apparatus (8) and drying with warm air. A pair of receiving rolls (102) and (102) are pivotally supported on both sides of the tank (101) and are connected to a motor (104) via a rotation transmission means (103). A holding lever (106) is provided on the upper part of the tank (101) so as to be linked to the cylinder (107) so as to be capable of undulating. At the free end of the presser lever (106), a scraping plate (108) having a length extending over the entire length of the plate cylinder (3) is provided. Presser lever (10
A water jet nozzle (105) is arranged below the plate cylinder (3) toward the plate cylinder (3), and a hot air blowing nozzle (109) is arranged facing the water jet nozzle (105) across the plate cylinder (3). Will be deployed.

The plate cylinder (3) having the support shaft (2) mounted on the receiving rolls (102) (102) by the suspension transfer device (9) is rotated by the rotation of the receiving rolls (102) (102). . The water jetted from the water jet nozzle (105) rinses away the cleaning liquid adhering to the plate cylinder, scrapes off water droplets with the scraping plate (108), and warm plate blows from the hot air blowing nozzle (105) to the plate cylinder (3). To dry. The water in the tank (101) is drained by the pipe (101a).

Sending Station H (FIGS. 7 and 11) The sending station H temporarily holds the plate cylinder 3 in order to send it to the next supporting shaft removing station I. , The cradle of the first waiting station D ₁
Similar to (77) and (77), pedestals (79) and (79) for mounting the support shaft (2) of the plate cylinder (3) are provided.

Transfer Cart (300) (FIG. 11) The transfer cart (300) provided between the sending station H and the support shaft removing station I is connected to the cylinder (403) and reciprocates to move to the plate cylinder (3). The pedestals (301) (301) for supporting the support shafts (2) at both ends of () are connected to a cylinder (not shown) and are arranged so as to be able to move up and down. The transfer carriage (300) waiting on the sending station H receives the plate cylinder (3) transferred to the receiving stand (79) of the sending station H by the suspension transfer device (9). (301) Raise (301) to raise the plate cylinder (3)
The support shaft (2) of the above is mounted and lifted, and in this state, it is advanced to the support shaft removing station I, and the receiving table (301) is lowered to mount the plate cylinder (3) on the support shaft removing station I mounting table (401).
Hand over to.

Support shaft removing station I (FIG. 11) In the support shaft removing station I, the mounting table (401) is connected to the cylinder (403) and is pivotally supported on the downstream side so as to be reversible. ) Both sides of the supporting shaft mounting device (4)
A supporting shaft removing device (4a) having the same configuration as that of (3) is provided. The support shaft removing device (4a) rotates the shaft body (29) of the support shaft (2) in the opposite direction to the above by the reverse operation of the support shaft attaching device (4), and the plate cylinder by the claw plate (203). The clamp of the support shaft (2) with respect to (3) is released, and while the support shaft (2) is being fixed to the slide base (41) by the clamp cylinder (40), the slide base (41) is retracted to support it. Axis (2)
Remove from the plate cylinder (3). The loading table (401) is turned over to the downstream side, and the printing cylinder (3) is transferred to the inclined receiving table (402) waiting.

The support shaft (2) removed from the plate cylinder (3) is automatically recovered by an automatic recovery device (not shown) and the mount (43) of the support shaft mounting device (4) at the support shaft mounting station B is mounted. ), The number of supporting shafts (2) to be prepared can be reduced. Of course, it is also possible to manually collect the support shaft (2) and set it on the mount (43) of the support shaft mounting device (4).

As described above, according to the present invention, the support shaft (2) is detachably attached to the plate cylinder (3) so that the support shaft (2) can be supported and the plate cylinder can be conveyed to each step of the cleaning apparatus. , It does not damage the surface of the plate cylinder. Further, the support shaft (2) is mounted and removed by the support shaft mounting device (4) and the support shaft removing device (4a).
Can be done automatically by the support shaft (2)
The taper surface (23) of the head (22) fits into the taper hole (32) at the end of the support shaft (2) so that the plate cylinder (3) and the shaft center of the support shaft (2) are surely aligned. The plate cylinder (3) can be stably rotated during the washing operation. The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims.

[Brief description of drawings]

FIG. 1 is a sectional view of a plate cylinder with a support shaft fitted therein.

FIG. 2 is an exploded perspective view of a support shaft.

FIG. 3 is an explanatory diagram of a support shaft attaching device.

FIG. 4 is a plan view of the cleaning device.

FIG. 5 is a front view of the cleaning device.

FIG. 6 is a perspective view of the transfer device.

FIG. 7 is a layout explanatory view of a suspension transfer device and stations below the suspension transfer device.

FIG. 8 is a perspective view of the suspension transfer device.

FIG. 9 is a side view of the ultrasonic cleaning device.

FIG. 10 is a cross-sectional view of a finish cleaning / drying apparatus.

11 is an explanatory diagram of a sending station H and a support shaft removing station I. FIG.

[Explanation of symbols]

 (2) Support shaft (3) Plate cylinder (4) Support shaft mounting device (5) Lifting device (7) Transfer device (8) Ultrasonic cleaning device (9) Suspension transfer device (100) Finishing cleaning and drying device

Claims (2)

[Claims] 1. A plate cylinder (3) having a hollow cylindrical body, both ends of which are closed by end plates (31), and a tapered hole (32) narrowing at the center of the end plates is provided, and a plate cylinder (3) of the plate cylinder. A plate cylinder with a support shaft, comprising a support shaft (2) (2) detachably attached to both ends, the support shaft (2) being fitted at a tip end thereof into a tapered hole (32) of the plate cylinder (3). A cylindrical body (21) with a head (22) that can be fitted, a screw shaft (291) at the penetrating end on the side of the head (22) that rotatably penetrates through the cylindrical body (21), and an engaging groove ( 293) forming the shaft body (29) and the slide member (200) screwed to the screw shaft (291) of the shaft body (29).
And a notch groove (202) formed in the outer periphery of the slide member (200) at equal intervals in the circumferential direction and a notch (27) formed in the outer periphery of the head (22) of the support shaft (2). Claw plate (203) pivotally supported by the slide member (200) so as to be swingable in a plane including the shaft center of the shaft body (29), and the tip of the head (22) of the support shaft (2). The cam surface (28) formed on the slide member (200) and the cam surface (28) disposed on the slide member (200) and the tip side is inclined low and contacts the claw plate (203).
And a spring (206) for urging the claw plate (203), the free end of the claw plate (203) is a tapered surface (23) with the claw plate (203) in contact with the high side of the cam surface (28). A plate cylinder with a support shaft that projects more outward than the shaft. 2. A hollow cylindrical plate cylinder (3) having taper holes (32) formed at the centers of both ends, and support shafts (2) (2) detachably attached to both ends of the plate cylinder to support the plate cylinder (3). A cleaning device for supporting a shaft (2) to transfer a cleaning line, wherein a support shaft mounting station B, a pre-cleaning station C, an ultrasonic cleaning station F, a drying station G, and a support shaft removing station I are provided from the upstream side to the downstream side. The support shaft mounting station B is provided with a pedestal (400) for supporting the lower part of the peripheral surface of the plate cylinder (3) below the transition path where the plate cylinder (3) moves orthogonal to the axis, and the transition. A pair of support shaft mounting devices (4) and (4) are arranged on both sides of the road so as to face each other.
In (4), a slide base (41) is provided so as to be able to approach and separate from the transition path of the plate cylinder in a horizontal plane, and a support shaft mounting base (43) and the mounting base (43) are mounted on the slide base (41). Outside of the support shaft
The rotary tool (44) that can be engaged with the engagement groove (293) formed at the base end of the shaft body (29) of (2) is provided. A rotary support device (60) that rotatably supports the support shaft (2) is provided on both sides of the path, and a brush (67) that rubs against the plate cylinder while supplying the cleaning liquid above the transition path contacts and separates from the plate cylinder. The ultrasonic cleaning station F is equipped with an ultrasonic cleaning device (8) that performs ultrasonic cleaning by immersing the plate cylinder (3) in a cleaning liquid tank, and the drying station G is used to wash off the cleaning liquid. A finishing washing / drying device (100) for drying with warm air is provided, and at the support shaft removing station I, a mounting table (401) that supports the lower peripheral surface of the plate cylinder (3) is provided below the transition path of the plate cylinder (3). ) And a supporting shaft removing device (4a) having the same structure as the supporting shaft mounting device (4) on opposite sides of the transition path, and the plate cylinder (3) is mounted on the supporting shaft mounting station B. From the supporting shaft removing station I to the supporting shaft removing station I, the carrying means for carrying intermittently to stop at each station in between is a cradle (74) or a hanging hook for supporting the supporting shafts (2) projecting from both ends of the plate cylinder (3). (9
Cleaning machine for plate cylinder with support shaft equipped with 03).