JPH0747306B2 - Wiping device for intaglio printing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an intaglio printing machine in which excess ink attached to a portion other than a pattern is removed from the ink supplied to the intaglio surface.
The present invention relates to a wiping device for wiping every sheet printing.

[Conventional technology]

The intaglio printing machine includes an intaglio cylinder having an intaglio mounted on its peripheral surface, and an impression cylinder that is in contact with the intaglio cylinder. The intaglio printing press is transported from the paper feeding device through the swing device to the jaws of the impression cylinder. Printing is performed on the paper by transferring an image with the ink supplied to the plate surface of the intaglio plate, and the paper after printing is conveyed by a paper ejection chain and ejected.

This type of intaglio printing machine is equipped with a wiping device as disclosed in, for example, JP-A-58-101060 and US Pat. No. 3,762,319. This wiping device includes a wiping roller that is in contact with the intaglio cylinder and that rotates so that the opposed peripheral surfaces move in opposite directions, and a plurality of brushes whose pad surfaces are in contact with the peripheral surface of the wiping roller. The brush is equipped with a doctor blade made of hard rubber or the like which is located on the downstream side of the roller rotation of the brush and has its tip facing the wiping roller. The extra ink transferred to the periphery of the concave portion and adhered thereto is wiped off by a wiping roller rotating in contact with the plate surface, and only the pattern of the concave portion is transferred to the paper. And the wiping roller
The ink is immersed in a cleaning liquid such as trichlene in the cleaning liquid tank and is rotating, and the ink transferred to the wiping roller by the wiping is removed by the cleaning action of this cleaning liquid and the brush, and is carried around by the wiping roller. The removed cleaning liquid is scraped into the cleaning liquid by a doctor blade.

In wiping ink with such a wiping device, if the contact pressure of the wiping roller against the plate surface is too strong, the ink in the recesses as a pattern will be scraped off, resulting in the inability to print ultrafine lines, and the contact pressure being too weak. And the excess ink remains around the recesses, causing the line width of the image to be wide and causing bleeding, or the ink remaining on some non-pattern areas may cause large stains. In order to ensure quality, it is necessary to properly adjust the contact pressure of the wiping roller with respect to the plate surface, and the conventional wiping device is provided with this contact pressure adjusting device. In the conventional wiping roller contact pressure adjusting device of this type, the wiping roller is pivotally supported by an eccentric bearing, and the eccentric bearing is rotated by a handle device via a worm and a worm wheel or a screw shaft to move the wiping roller closer to the plate surface. It was to move back and forth slightly in the direction. Further, if the contact pressure of the doctor blade is too strong, the wiping roller will be damaged, and if it is weak, the cleaning liquid will rise and the intaglio surface will be contaminated.Therefore, conventionally, a handle operation type that advances and retracts the tip of the doctor blade with respect to the peripheral surface of the wiping roller is used. A contact pressure regulator was provided. Both of these contact pressure adjusting devices are also used for attachment / detachment between the intaglio surface, the wiping roller, and the doctor blade.

[Problems to be solved by the invention]

However, in such a conventional wiping device, when the eccentric bearing is rotated by the handle operation to separate the wiping roller from the intaglio surface when the printing operation is interrupted, the wiping roller approaches the doctor blade and the wiping roller moves. Since the peripheral surface will be damaged, the doctor blade must be removed by a separate operation first, which not only results in poor workability, but also because the order is incorrect and the wiping roller can be removed before the doctor blade is removed. By doing so, the tip of the blade may damage the peripheral surface of the wiping roller. Further, when the contact pressure of the wiping roller is adjusted, the relative position between the wiping roller and the doctor blade changes, so that it is necessary to readjust the contact pressure of the doctor blade whose bending angle has been adjusted, which requires unnecessary labor and time. There was a problem to say.

[Means for solving problems]

In order to solve such problems, in the present invention,
A holding member for holding the doctor blade and a machine base side support member are connected by a plurality of fixing screws to support the support member so that the doctor blade can be moved forward and backward in the attaching and detaching direction of the doctor blade, and an eccentric bearing for the wiping roller. The doctor blade support member is connected by a cam mechanism that interlocks the rotation of the eccentric bearing and the forward / backward movement of the support member, and a doctor blade contact pressure fine adjustment mechanism for moving the holding member forward / backward with respect to the support member is provided. Further, according to the second aspect of the invention, a spring member for urging the holding member in a direction of separating the holding member from the supporting member is loaded in a plurality of spring holes provided on the holding member facing surface of the supporting member.

[Action]

When the eccentric bearing is rotated to separate the wiping roller from the intaglio cylinder when printing operation is interrupted, the support member movable with respect to the machine base moves in conjunction with the rotation of the eccentric bearing, and the doctor blade moves. Separate from the wiping roller. When the operation is restarted, the doctor blade is also mounted in conjunction with the mounting operation of the wiping roller. The contact pressure does not change on the doctor blade before the operation is interrupted and after the operation is restarted. Further, even if the contact pressure of the wiping roller is adjusted, the relative position of the wiping roller and the doctor blade does not change, and it is not necessary to readjust the doctor blade, and the doctor blade can finely adjust the contact pressure independently. . Further, in the second invention, when the fixing screw for fixing the doctor blade holding member is loosened, the holding member is elastically urged by the spring member and separated from the supporting member, and the tip of the doctor blade is raised so that the wiping roller peripheral surface is raised. Run away from.

[Embodiment] FIGS. 1 to 5 show an embodiment of a wiping device according to the present invention. FIG. 1 is a side view thereof, FIG. 2 is an exploded plan view, and FIG. 3 is a longitudinal section of a doctor blade device. 4 and 5 are schematic layout diagrams, and FIG. 5 is a schematic side view of an intaglio printing machine embodying the present invention. In the figure, between the paper feeding device 2 on which the paper 1 is stacked and the printing device 3 in front of the paper feeding device 2, the stacking mechanism of the paper feeding device 2 receives the papers 1 fed one by one from the upper layer, and aligns the printing registration. A difference plate 4 and a swing device 5 for swinging the paper 1 on the difference plate 4 are arranged. The printing unit 3 is provided with three sets of gripper devices (hereinafter referred to as "claws 8") composed of a claw 6 and a claw base 7 in the circumferential direction in the circumferential direction.
An impression cylinder 9 arranged at equally divided positions is mounted on a shaft, on which an intaglio plate 10 of approximately the same diameter, a transfer cylinder 11 of approximately 1/3 diameter and a discharge cylinder 12 are confronted. There is. Of these, the transfer cylinder 11 is provided with a pair of claws having the same structure as the claws 8 and is configured to cause the paper 1 that has been gripped by the swing device 5 to be gripped by the claws 8 of the impression cylinder 9. . Further, a pair of left and right paper ejection chains 13 are stretched between a sprocket coaxial with the paper ejection cylinder 12 and a sprocket (not shown). Paper ejection chain
A paper ejection claw that conveys the paper as it travels 13 is provided. Further, an intaglio formed by a flat surface as a non-image area and a recess as an image area is mounted on the peripheral surface of the intaglio cylinder. On the surface of the intaglio plate, a plurality of inking rollers 14 are in contact, and an ink fountain roller 16 rotating in an ink fountain 15 is in contact with it. Reference numeral 17 is a shaking roller which is in contact with the fountain roller 16 and which evens out the ink flowing out from the ink fountain 15.

In general, the intaglio printing machine configured as described above is provided with a wiping device indicated by reference numeral 20. The wiping device 20 is provided with a cleaning liquid tank 21 which is located diagonally below the intaglio cylinder 10 and is supported on the machine frame side. Inside the cleaning liquid tank 21, a cleaning liquid 22 such as trichlene is provided.
1 is stored. At the upper open end of the cleaning liquid tank 21, a pair of bearing covers 23 formed in a half-hinge type that is rotatable around a pivot 22 is provided on both side plates, and a pair of post-closure fasteners 24 are provided. Is fixed. Each bearing cover 23, FIG. 1, reference numeral t in Figure and the metal core F is the center, and a roller core F ₁ is a core of the inner hole 25b of the outer peripheral 25a shown in FIG. 2
The eccentric bearing 25 that is eccentric only is fixed by split tightening, and the inner hole 25b of the eccentric bearing 25 has a wiping roller 26 whose peripheral surface is in contact with the plate surface on the intaglio cylinder 10. Both end shafts are rotatably supported by a pusher 28 and a rolling bearing 27 so as to be rotatable and movable in the axial direction. The wiping roller 26 is rotationally driven from the driving side by the engagement of a gear 29 fixed to one end shaft and a pinion 30 below the gear 29, and a roller is fitted to a grooved wheel 31 at the other end. It is reciprocally driven in the axial direction by the swing mechanism (not shown). The wiping roller 26 is rotated in the same direction as the intaglio cylinder 10 as shown by the arrow in the drawing, and the contacting peripheral surfaces are rotated in opposite directions.

On the other hand, screw bearings 32 having screw holes are bolted to the upper ends of both side plates of the cleaning liquid tank 21, and a screw shaft 34 with a handle 33 is moved forward and backward by a rotating operation in each screw bearing 32. It is screwed so that it can. Reference numeral 35 denotes a coupling with a built-in thrust bearing 36 rotatably attached to the tip of each screw shaft 34.A hydraulic cylinder 37 is fixed to each coupling 35 in a concentric manner with the screw shaft 34. The piston rod 38 faces directly below the wiping roller 26. The working end of the piston rod 38 is pinned to the metal fitting 39 bolted to the eccentric bearing 25.
The piston rod of the hydraulic cylinder 37 is pivoted at 40.
The eccentric bearing 25 is rotated around the metal core F by moving the 38 back and forth hydraulically, and the wiping roller 26 is attached to and detached from the plate surface of the intaglio cylinder 10 by the eccentric action. In addition, by rotating the handle 33 to move the screw shaft 34 forward and backward in the attached state, the contact pressure of the wiping roller 26 with respect to the plate surface is finely adjusted. 34a is screw shaft 3
It is a fixing nut with a handle 34b for fixing the 4 at the rotating position.

On the other hand, on the upper surface of the rear side plate 21a of the cleaning liquid tank 21, a long blade base 41 formed in a laterally long rectangular cross section is fitted with dovetail-type guides 42 provided at three positions of both ends and the center. It is supported so that it can be translated in a direction orthogonal to the axis. Reference numeral 43 denotes a blade holder which is wider than the blade base 41 and slightly shorter than the blade base 41 and which is formed in a long plate shape. The blade holder 43 is superposed on an inclined surface 41a formed at a position other than both ends of the blade base 41, and Fixing screws 44 (described later)
It is detachably fixed by a doctor blade 45 formed in a plate shape with an elastic material such as synthetic rubber at its front end.
(Hereinafter, referred to as blade 45) is pressed by a blade presser 46 and fixed by a plurality of bolts 47. The fixing screw 44 has a head portion 44b having a plurality of handle insertion holes 44a.
, A pin portion 44c, and a screw portion 44d screwed into the screw hole of the slide base 41 are integrally formed, and the step end portion of the pin portion 44c and the screw portion 44d is in contact with the tightening surface. In between the lower surface of the head 44b and the upper surface of the blade holder 43,
It is configured so that a gap indicated by reference numeral t ₁ in FIG. 3 is formed. And a plurality of disc springs 48 are provided in this gap t ₁ .
The cap 49 and the washer 50 are sandwiched between the upper and lower sides. A compression coil spring 51 is inserted in the annular groove formed in the head portion 44b, and a stopper 52 is fitted in the lower end portion of the pin portion 44c. The pin part 44
The fitting hole 43a of c is formed in a long hole shape having substantially the same width as the pin portion 44c, and the stopper 52 is brought into contact with the peripheral edge of the hole to secure the fixing screw.
The blade holder 43 is configured to be prevented from coming off and to be movable in the perspective direction with respect to the wiping roller 26. L-shaped moving metal fittings 53 for moving the blade holder 43 are bolted to two positions on the left and right sides of the blade holder 43, and a U-shaped groove 53a provided in the vertical member thereof is entirely denoted by reference numeral 54. The pin portion 54a of the adjustment handle for adjusting the blade holder back and forth shown in is fitted. The adjustment handle 54 includes a pin portion 54a, a head portion 54b with a handle 55, a large diameter portion 54c that restricts the movement of the adjustment handle 54 together with the head portion 54b, and a screw screwed into a screw hole of the blade base 41. It is integrally formed with the portion 54b. Further, the blade 45 has a function of scraping off the cleaning liquid carried by the wiping roller 26, with its tip abutting against the peripheral surface of the wiping roller 26, and grips the handle 55 to move the adjustment handle 54 forward and backward. As a result, the blade 45 moves back and forth together with the blade holder 43, the contact pressure on the wiping roller 26 is adjusted, or the blade 45 separates from the wiping roller 26. In this case, the fixing screw 44
Even if the blade holder 43 is tightened without being loosened, only the elastic force of the disc spring 48 acts, and the blade holder 43 can be moved back and forth in this state. Furthermore, a pair of front and rear spring mechanisms 56 that elastically spring the blade holder 43 away from the blade base 41 are provided at both left and right ends of the blade base 41. The spring mechanism 56 includes a compression coil spring 57 loaded in a stepped spring hole on the blade base 41 side, a vertically capped stepped cap 58 capped by the compression coil spring 57, and an upper end long hole portion of the spring hole. It consists of a rectangular cap retainer 59 that is loaded and bolted to the bottom of the long hole. It is configured to urge the plate holder 43 upward.

Blade base of the blade device configured as described above
41 is slightly advanced and retracted by an adjusting screw 54, and is configured to move forward and backward in conjunction with the attaching and detaching operation of the wiping roller 26. That is, the eccentric bearings on both sides
A cam 60 having an arcuate grooved cam surface 60a that is not concentric with the outer periphery 25a is bolted to the side surface of 25, while cam followers 61 that engage with the grooved cam surface 60a are provided at both ends of the blade base 41. A cam lever 62 pivotally attached to the free end is bolted. Due to this structure and the fact that it is guided by the guide 42, the eccentric bearing 25 rotates, and the cam 60 integral with this rotates around the metal core F. By the action of the non-concentric arcuate groove cam surface 60a, the cam lever 62 moves forward and backward while remaining stationary in the vertical direction, so that the blade 45 moves forward and backward. That is, when the wiping roller 26 is released from the attached state, the blade 45 is also released from the attached state, and the blade 45 is also attached in the attached state of the wiping roller 26, and the blade 45 in this attached state again. The contact pressure is exactly the same as the contact pressure before the de-actuation and does not need to be readjusted.

Here, the positional relationship of the wiping roller 26 and the like will be described with reference to FIG. In this apparatus, the position of the metal core F is set to the intaglio drum core F ₂ , the wiping roller core F ₁ , and the pinion core F ₃
Angle θ and at wiping roller core F ₁ in position in point symmetry, and the intaglio cylinder core F ₂ and the wiping roller core F ₁ and ± respect to the perpendicular stood to the wiping roller core F ₁ of a line connecting the forming in
It was set within the range of 45 °, and was provided within the range of ± 45 ° with respect to the line connecting the pinion core F ₃ and the wiping roller core F ₁ . Further, in this range, the gear is made a minus shift to the extent that there is no hindrance to the meshing of the gear with respect to the change in the center distance between the gear 29 and the pinion 30 due to the rotation of the eccentric bearing 25.
By doing so, even if the eccentric bearing 25 is rotated, the gear 29
There is no obstacle in the meshing with the pinion 30.

Reference numeral 63 in FIG. 1 denotes a plurality of brushes which are supported by an arm (not shown) and whose pad surface is detachably contacted with the peripheral surface of the wiping roller 26. The ink transferred to the peripheral surface of 26 is dissolved by the cleaning liquid that has permeated the pad, and the brush 63
It is configured to be scraped into the cleaning liquid tank 21 by the pressing action of.

In the intaglio printing machine configured as described above, the papers 1 fed one by one from the paper feeding device 2 onto the difference plate 4 are gripped by the swing device 5 through the transfer drum 11 and the nails 8 of the impression drum 3. It is carried and transported. On the other hand, since the three color inks in the ink fountain 15 are supplied to the intaglio surface on the intaglio cylinder 10 by the inking roller 14, this ink is transferred to the paper 1 passing between the two cylinders 9 and 10. Is printed, and the printed paper 1 is the output chain 13
The paper is replaced by the claws, and the paper is ejected after being conveyed.

The wiping operation in such a printing operation will be described. When sheet feeding is started and the printing cylinder is inserted, the hydraulic cylinder 37 operates in conjunction with this operation and the piston rod 38 that has been retracted advances to the position shown in the figure, so that the eccentric bearing 25 causes the metal core F to move. Is rotated in the clockwise direction in the figure, and the wiping roller 26 is pressed against the plate surface as shown in the figure. At this time, the cam 60 also rotates clockwise to the position shown in the figure, so that the cam follower 61 is engaged with the groove cam surface 60a and the cam lever 62 advances, and the blade base integrated with this is formed.
41 is guided by the guide 42 to move in parallel, and the tip of the blade 45 contacts the peripheral surface of the wiping roller 26. When the printing operation is performed in this state, the excess ink attached by the inking roller 14 to the periphery of the concave portion which is the pattern portion of the intaglio surface is extracted by the wiping roller 26 and transferred to the peripheral surface thereof. The transferred ink is scraped into the cleaning liquid in the cleaning liquid tank 21 by the cleaning action of the cleaning liquid that has penetrated into the pad of the brush 63 and the pressing action of the brush 63, and the cleaning liquid carried around the wiping roller 26 is removed by the blade 45. About cleaning liquid tank 21
It is scraped inside.

Then, when adjusting the contact pressure of the wiping roller 26 against the plate surface, when the fixing nut 34a is loosened and the handle 33 is rotated, the screw shaft 34 advances and retreats by a screw action, and is fixedly coupled thereto by the coupling 36. The hydraulic cylinder 37 moves back and forth, the eccentric bearing 25 slightly rotates in the same manner as described above, and the contact pressure of the wiping roller 26 is finely adjusted. This adjustment can be done while observing the wiping action while the machine is running.

In addition, at the start of printing, wear after long-term use, etc.
When adjusting the scraping action by the blade 45,
When the handle 55 is gripped and the adjusting screw 54 is rotated, the blade holder 43 moves forward and backward, and the blade 45 integrated with the blade holder 43 moves forward and backward, so that the contact pressure of the blade 45 is adjusted. In this case, conventionally, the blade base 41 was moved by loosening the screw corresponding to the fixing screw 44, but in this device, the blade base 41 is only pressed against the blade base 41 by the elastic force of the disc spring 48. Therefore, the blade 45 can be adjusted with the fixing screw 44 still tightened.

When the printing operation is stopped and the printing cylinder is removed when the printing operation is interrupted, the hydraulic cylinder 37 operates in conjunction with this and the piston rod 38 retracts, so that the eccentric bearing 25
Rotates in the direction opposite to the above, and the wiping roller 26 is separated from the intaglio surface by the eccentric action. The rotation of the eccentric bearing 25 causes the cam 60, which is integral with the eccentric bearing 25, to revolve, and the blade base 41 retracts via the cam lever 62, so that the blade 45 is separated from the peripheral surface of the wiping roller 26. When the printing operation is restarted, when the feeding operation is started and the printing cylinder is inserted, the piston rod 38 of the hydraulic cylinder 37 moves forward in association with this, so that the wiping roller is the same as when the printing operation is started.
26 and the blade 45 are interlocked with each other to become the wearing state. In such an attaching / detaching operation of the wiping roller 26, the relative position of the blade holder 43 and the blade base 41 does not change, so that the contact pressure of the blade 45 before the interruption of operation is exactly reproduced when the operation is restarted. Further, the blade 45 first escapes from the wiping roller 26 by setting the position of the metal core F and the shape of the groove cam surface 60a, and the wiping roller 26 is moved to this.
So that the 26 can follow, so the blade 45
Does not interfere with the peripheral surface of the wiping roller 26. Furthermore, by setting the position of the metal core F, the wiping roller 26
The gear 29 and the pinion 30 do not become so shallow or deep that they interfere even if the gear is in the released state.

Next, the blade holder 43 is removed when the pad of the brush 63 is worn and a hand is put from above, or when the blade 45 is worn. That is, when the handle is inserted into the handle hole 44a of the fixing screw 44 and loosened, the screw portion 44d comes out of the screw hole, the elastic force of the disc spring 48 is released, and the elastic force of the compression coil spring 57 is released by the blade holder 43. Acts on the underside of. Then, this elastic force balances with the weight of the blade holder 43 and the like, and the blade holder 43 rises in a horizontal state or in a state where the blade 45 side is raised. Therefore, normally, even when the gap between the tip of the blade 45 and the peripheral surface of the wiping roller 26 is set to 1 mm or less in order to prevent the liquid from rising when the wiping roller 26 idles, the tip of the blade 45 and the peripheral surface of the wiping roller 26 are There is no contact. When the screw portion 44d comes off, the stopper 52 is pressed against the elongated hole 43a by the elastic force of the compression coil spring 51, and the blade holder 43 is removed together with the fixing screw 44. When replacing the blade holder 43 after the replacement work, etc., stack the blade holder 43 on the blade base 41, insert the handle into the handle hole 44a, and screw the screw part 44d of the fixing screw 44 into the screw hole. Then, the compression coil spring 51 is first compressed, and then the disc spring is continued.
While the elastic force is accumulated in 48, the fixing screw 44 is screwed in until the step portion of the pin portion 44c stops at the screw hole step portion. As a result,
The blade holder 43 is supported in a long hole 43a by a pin portion 44c so as to be movable back and forth.

The doctor blade contact pressure fine adjustment mechanism for moving the blade holder 43 back and forth with respect to the blade base 41 is not limited to the screw type of the present embodiment.

〔The invention's effect〕

As is apparent from the above description, according to the present invention, in the intaglio printing machine, the holding member that holds the doctor blade and the machine-board-side support member are connected by a plurality of fixing screws so that the support member is machine-board-side. With respect to the doctor blade is supported so as to be movable back and forth in the attaching and detaching direction, the wiping roller eccentric bearing and the doctor blade supporting member are coupled by a cam mechanism that interlocks the rotation of the eccentric bearing and the moving back and forth of the supporting member, By providing a doctor blade contact pressure fine adjustment mechanism for advancing and retracting the holding member with respect to the supporting member, the wiping roller can be used as an intaglio cylinder by rotating the eccentric bearing when the printing operation is interrupted and when the operation is restarted thereafter. When it is attached and detached, the doctor blade is attached and detached to and from the wiping roller via a cam mechanism in conjunction with this, which improves workability, facilitates automation, and saves labor. Both does not change relative position between the blade holding member and the machine frame side support members between the attachment and detachment,
Since the contact pressure of the doctor blade does not change, it is not necessary to readjust the contact pressure when the operation is restarted, and the idle time is shortened and the productivity is improved. Further, by arbitrarily setting the shape of the cam surface, it is possible to prevent the tip of the doctor blade and the peripheral surface of the wiping roller from coming into contact with each other at the time of attachment / detachment,
The peripheral surface of the wiping roller is not damaged and the durability is improved. Furthermore, by setting the shape of the cam surface, it is possible to allow the blade to escape slightly from the surface of the wiping roller at the end of the removal without changing the pressing force of the blade until the wiping roller is removed, so that the roller can be rotated, started and stopped. It is possible to avoid an accident in which the peripheral surface of the wiping roller is damaged by the impact caused by the backlash. Further, since the relative position between the holding member and the support member can be adjusted, it is possible to easily cope with a change in the diameter of the wiping roller, and the function of the device is improved.

Further, as another invention, in addition to the above-mentioned configuration, a spring hole is provided in the holding member facing surface of the support member, and a spring member for urging the holding member in the direction of separating the holding member from the support member is loaded in the spring hole. By doing so, when the fixing screw is loosened when removing the doctor blade, the holding member rises due to the elastic force of the spring member, the doctor blade separates from the wiping roller peripheral surface, and damage to the wiping roller peripheral surface can be avoided. It is possible to improve durability.

[Brief description of drawings]

1 to 5 show an embodiment of a wiping device for an intaglio printing machine according to the present invention. FIG. 1 is a side view thereof, FIG. 2 is an exploded plan view, and FIG. 3 is a longitudinal section of a doctor blade device. 4 and 5 are schematic layout diagrams, and FIG. 5 is a schematic side view of an intaglio printing machine embodying the present invention. 10 ... Intaglio cylinder, 20 ... Wiping device, 25 ... Eccentric bearing, 25b ... Inner hole, 26 ... Wiping roller, 37 ... Hydraulic cylinder, 38 ... Piston rod, 41 ... Blade base, 42 ... Guide, 43 …… Blade holder, 44 …… Fixing screw, 45 …… Doctor blade, 54 …… Adjustment handle,
54e …… Screw part, 56 …… spring mechanism, 57 …… compression coil spring, 58 …… cap, 59 …… cap presser, 60 …… cam, 60a …… groove cam surface, 61 …… cam follower, 62 …… Cam lever.

Claims (2)

[Claims] 1. A wiping roller which is axially supported by the inner holes of the left and right eccentric bearings and which moves by rotating the eccentric bearings so as to bring the peripheral surface into contact with and away from the intaglio surface on the intaglio cylinder. In a wiping device for an intaglio printing machine, which comprises a doctor blade held by a holding member with its tip detachably opposed to the peripheral surface, the holding member and the machine base side supporting member are connected by a plurality of fixing screws. Then, the support member is supported so as to be movable back and forth in the attaching / detaching direction of the doctor blade with respect to the machine base side, and the eccentric bearings and both end portions of the support member are rotated to move the eccentric bearing and move the support member forward and backward. A wiping device for an intaglio printing machine, comprising a doctor blade contact pressure fine adjustment mechanism for advancing and retracting a holding member with respect to the supporting member, the wiping device being connected with a cam mechanism for interlocking. 2. A wiping roller which is axially supported by the inner holes of the left and right eccentric bearings and which is moved by the rotation of the eccentric bearings so as to bring the peripheral surface into contact with and away from the intaglio surface on the intaglio cylinder. In a wiping device for an intaglio printing machine, which comprises a doctor blade held by a holding member with its tip detachably opposed to the peripheral surface, the holding member and the machine base side supporting member are connected by a plurality of fixing screws. Then, the support member is supported so as to be movable back and forth in the attaching / detaching direction of the doctor blade with respect to the machine base side, and the eccentric bearings and both end portions of the support member are rotated to move the eccentric bearing and move the support member forward and backward. A doctor blade contact pressure fine adjustment mechanism for advancing and retracting the holding member with respect to the support member is provided, which is connected by a cam mechanism to be interlocked, and is provided in a plurality of spring holes provided on the holding member facing surface of the support member. , This Wiping device of an intaglio printing press is characterized in that loading the spring member for urging in a direction to separate the member from the support member.