JPH03133645A - Ink supply device in gravure roary press - Google Patents

Abstract

PURPOSE:To adjust a furnisher roller to a plate cylinder of a different diameter to establish proper gap and position by a method wherein a bearing part supporting the furnisher roller rotatably is provided so as to move crosswise with respect to the plate cylinder, and an operation part for moving the bearing part in the same direction is mounted. CONSTITUTION:A proximate point of a furnisher roller 10 to a plate cylinder 1 can be adjusted by adjusting the vertical travel amount of an ink pan frame 8 and the crosswise travel amount of the furnisher roller 10. When a driver 4 is driven in this state, the plate cylinder 1 is rotated. Simultaneously, a pulley 48 provided on a rotating shaft 47 of the driver 4 is rotated, and this rotation is transmitted to a belt 49, a pulley 46, a change gear 41, a coupling 44 with a one-way clutch, a shaft 39, a universal joint 37, a shaft 34, a drive gear 33, an idle gear 32, and a spur gear 31 to rotate the furnisher roller 10. The universal joint 37 copes with a change in direction, and a spline shaft 35 and a spline shaft cylinder 36 cope with a change in distance.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is a gravure rotary press II! This invention relates to an ink supply device.

[Prior Art] Conventionally, in an ink supply device for a gravure rotary press, a furnishing roller that immerses the undertone part in ink in an ink pan and rotates to supply the ink in the ink pan to a plate cylinder is placed at a fixed position 1 on the ink pan. If the diameter of the plate cylinder changes, the position of the furniture roller can be changed by moving the ink pan up and down. It is driven by a chain at a constant ratio, and rotates at a constant ratio to the rotation of the plate cylinder (Utility Model Publication No. 56-7477).

[Problems to be Solved by the Invention [11] According to the above-mentioned ink supply and condensation method in the conventional gravure rotary press, the furnisher roller is fixed to the ink pan, so when the diameter of the plate cylinder changes, the ink pan cannot be moved. v4
The furniture roller is adjusted so that it approaches the plate cylinder at a predetermined distance (proximity point), but the above P81111+
Due to the change in diameter, the proximity position (direction) of the furnisher roller to the plate cylinder changes, making the amount of ink supplied to the plate cylinder unstable.

In addition, since the rotation from the drive source to the furnisher roller is transmitted by a chain, if the chain stretches over time, the chain will become loose, and as a result, the rotation of the furnisher roller will be transmitted unreliably and to the plate cylinder. The ink supply may be disrupted and defective printing may occur.

In addition, since there is a difference in peripheral speed between the rotating fannisher roller and the plate cylinder, when the fannisher roller comes into contact with the plate cylinder, a load is applied to the fanisher roller drive unit, causing the fanisher roller to drive. Otherwise, the surface of the furniture roller may be damaged.

Furthermore, the rotation of the furnace rasher (because it rotates at a fixed ratio to the rotation of the plate cylinder and cannot be changed in speed, for example, if you want to change the rotation speed depending on the fl level of the ink, it is difficult to adapt to this). First, there are many problems such as limited printing conditions.

The present invention provides a feed device for a gravure rotary press which aims to solve the above-mentioned problems.

[Means for Solving the Problems] The present invention has been made to solve the above method IIN, and the invention of M1 is to move the furnishing roller that immerses the lower tone part in the ink in the ink pan in the vertical direction. This shallow furniture is rotatably supported on the
5 is coupled to a desired drive source via a rotation transmission mechanism and rotated to supply ink in an ink pan to a plate cylinder. Furnisher rollers are rotatably mounted on both sides of an ink pan mount 11111 that holds an ink pan. A structure was adopted in which a supporting bearing part was provided so as to be movable in the front-rear direction with respect to the plate cylinder, and an operating part was provided to move this bearing part in the same direction.

In a second aspect of the invention, the rotation transmission mechanism includes a spur gear that is connected to the furniture roller, a universal joint that transmits rotation to the spur gear, a one-way clutch that allows free rotation in the rotation direction, and a one-way clutch that controls rotation of the drive source. We adopted a configuration consisting of a converter that changes speed and transmits it to a universal joint.

The invention of M3 is the rotation transmission I! The universal joint that makes up the sides has a fly life, and one end of this universal joint is supported by a bearing that supports the furniture roller.

[Function] Bearings that rotatably support the furnisher roller are provided on both sides of the ink pan stand on which the ink pan is placed, so that the bearings are movable in the front and rear directions with respect to the plate cylinder. Since it is equipped with an operation section that moves the ink pan vertically, the furniture shallower for 11 different plate cylinders can be moved by moving the ink pan vertically and moving the furniture roller forward and backward relative to the plate cylinder by operating the operation section.
5, the appropriate spacing and position adjustment is made. The movement of the furniture roller on the Ishiki pan is controlled by the PIi
The movement is in the front-rear direction with respect to the cylinder, there is no movement in the vertical direction, and the vertical distance between the furniture roller and the ink pan is kept constant, so the amount of ink immersed in the furniture roller is always constant. The optimal ink is supplied to the plate cylinder.

In addition, as a rotation transmission mechanism that transmits the drive of the drive source to the furniture roller, the rotation of the universal joint that rotates in response to the rotation from the drive source is transmitted to the spur gear installed on the furniture roller. Therefore, the rotation from the drive source is always accurately transmitted to the furniture roller, and a constant amount of ink is always supplied to the plate cylinder. Rotation transmission again! The bridge is equipped with a one-way clutch that allows free rotation in the rotational direction, so when the furnishing roller and the plate cylinder, which have different outer peripheries, come into contact and the furnishing roller receives a load in the same rotational direction, The rotation transmission mechanism is free-sliding using a one-way clutch, which prevents damage to the drive unit and also prevents damage to the surface of the furniture roller.

In addition, the rotation transmission mechanism is equipped with a converter that changes the speed of the rotation of the drive source and transmits it to the 52 universal joint, so this can be used, for example, when you want to change the rotation speed of the furnisher roller depending on the type of ink to be supplied. can be easily changed.

Furthermore, the universal joint is equipped with splines,
Connect one end of this universal joint to the furniture
Because the ink pan is moved up and down according to the diameter of the plate cylinder, and the angle between the drive source and the furnisher roller changes when the furnisher roller is moved back and forth, the universal joy The rotation from the drive source is reliably transmitted to the furnisher roller by expanding and contracting the spline to correspond to the change in length.

[Example] Hereinafter, the present invention will be described in detail based on an example shown in the drawings.

Atsushi 1 to 3 show an embodiment of the present invention. In the figures, 1 is a plate cylinder, and this plate cylinder 1 is rotatably supported by a bearing member 3 provided on a frame 2. has been done. 4 is a drive device for rotating the plate cylinder 1; 5 is an impression cylinder that presses against the plate cylinder 1; printing paper 6 is interposed between the plate cylinder 1 and the impression cylinder 5.

An ink pan 7 is provided below the plate cylinder 1, and is supported by an ink pan mount 8. Reference numeral 9 denotes a moving operation unit that moves the ink pan mount 8 up and down to bring the ink pan 7 closer to and away from the plate cylinder 1, and will be described in detail later.

10 transfers the ink contained in the ink pan 7 to the plate cylinder 1.
The furnisher roller 10 is rotatably supported above the ink pan 7 by a bearing 11, and its lower end is immersed in the ink in the ink pan 7.

The bearing portions 11 are provided on both sides of the ink pan mount 8, and rotatably support both ends of the furniture 0-510. slide block 12
This slide block 1 is fixed by Porto 13 on
It is possible to move in the same direction via 2. This bearing part 11 is moved in the front and back direction by the operating part 14. This operation part 14 includes a screw shaft 15 screwed into the center of the slide block 12, a screw shaft bearing part 16 fixed to the ink pan mount 8 and rotatably holding the screw shaft 15, and the screw shaft 1.
When the handle 17 is operated and the screw shaft 15 is turned, the screw shaft 15 (here!) is connected to the slide block 12.
is adapted to move in the front-back direction along the screw shaft 15.

The moving operation section 9 that moves the ink pan stand 8 up and down to move the ink pan 7 toward and away from the plate cylinder 1 has the following configuration.

b) Fix the two rods 18 to the lower end of the Kibashi mount 8,
One end of a lever 19.20 is swingably attached to this rod 18. Furthermore, hinge shafts 21 and 22 are fixed to the other end of the lever 19°2o, and this hinge shaft 1
1.22 is rotatably supported by the frame 2. One hinge shaft 2 of the hinge shafts 21 and 22
One end of the lever 23 is fixed to the end of the lever 23 with a dowel 24,
A screw nut 25 is attached to the other end of the lever 23 so as to be movable. This screw nut 25-
is screwed onto a screw shaft 27 formed integrally with the hashidle 26, and this screw shaft 2
7 is rotatably supported by a bracket 28 attached to the frame 2. Then, when the handle 2°6 is operated to turn the screw shaft 27, the lever 23 rotates and the hinge shaft 21 rotates.
The levers 19 and 20 rotate due to the rotation of lever + 9.
, -20, the rod 18 is moved up and down, so that the ink pan stand 8 is moved up and down.

29 is the jl [! The rotation value i! which connects with the rotation device 4 and transmits rotation to the furniture roller 1o to rotate it! $1! This rotation transmission mechanism 2
8 consists of the following structure.

A spur gear 3] is attached to the shaft 30 of the furniture roller) 0, and two idle gears 32 that mesh with the spur gear 31 and a drive gear 33 that mesh with the idle gear 32 are attached to the bearing part 11. The drive gear 33 is fixed to one end of a shaft 34 rotatably supported by the bearing part 11, and the other end of this shaft 34 (here, the spline shaft 35
and a universal joint 37 with a spline shaft cylinder 36
One end is connected and fixed with a bottle 38. A shaft 39 rotatably supported at the other end of the universal joint 37
The other end of this shaft 39 and the output shaft 42 of the converter 41 are connected by a coupling 44 having a one-way clutch 43, and the input of the converter 41 is connected to the output shaft 42 of the converter 41. A pulley 46 is provided on the shaft 45, and a boot 9 provided on the rotation shaft 47 of the drive bag wI4 is connected to the pulley 46.
48 and a belt 49 is stretched between them. The input shaft 4 of the converter 41 is rotated by the drive device 4 by a belt 49.
5f is transmitted, the speed is changed by the converter 41, and the output shaft 42 is connected to a coupling 44 with a one-way clutch 43. The rotation of the universal joint 37 is transmitted to the universal joint 37 via the shaft 39, and the rotation of the universal joint 37 is transmitted to the drive gear 33. Idol gear 32. It is transmitted to the furnisher roller 1o via the spur gear 31, and the furnisher roller 1o rotates.

As shown in Fig. 3121, the coupling 44 having the one-way clutch 43 has splots 50 and 51 connected by a chain 52, and the one-way clutch 43 is installed inside the splot 51.

Next, the present invention will be explained in detail.

When the handle 26 of the mobile exercise unit 9 is rotated in one direction,
The ink pan stand 8 rises while moving to the left in Fig. 1, and when rotated in the other direction, the ys moves to the right.
It descends with a. In addition, the handle 1 of the operating section 14
When the fan roller 7 is rotated in one direction, the furnishing roller 10 moves forward toward the plate cylinder 1 (leftward in FIG. 1), and when rotated in the other direction, it retreats away from the plate cylinder 1 (first
right direction).

Therefore, the proximity point of the furnisher roller 10 to the plate cylinder 1 is determined by TA! In the case of IE, this can be done by adjusting the vertical amount of the ink pan mount 8 and adjusting the amount of back and forth movement of the furnisher roller 10.

When the drive bag a4 is driven in this state, the plate cylinder 1 rotates in the direction of the arrow in FIG. At the same time, the pulley 48 provided on the rotating shaft 47 of the drive device 4 rotates, and this rotation causes the belt 49.7-
46. Transformer 41. Coupling 44° shaft 39 with one-way clutch 43. Universal Schaight 37. Shaft 34. Drive gear 33. idle gear 32
．． The rotation is transmitted to the spur gear 31, and the furnisher roller 10 rotates in the direction of the arrow in FIG. M1.

The direction of the universal joint 37 changes due to the vertical movement of the ink pan mount 8 and the t @ Ik, 1t = command of the furnisher roller 10, and at the same time, the distance Zt of the orientation 7M of both end openings of the universal joint 37 expands and contracts. ,
The change in direction is handled by the universal joint 37, and the change in distance is handled by the spline shaft 35 and spline shaft cylinder 36 of the universal joint 37, so that the rotation of the drive device 4 is reliably transmitted to the furniture roller 1o. be done.

In this way, when the fannisher roller 10 rotates, the ink in the ink pan 7 is forcibly transferred to the outer peripheral surface of the plate cylinder 1 due to the rotation of the fannisher roller 10; Ink is Doctor Blade 5
After the plate cylinder 1 is uniformly adjusted in the longitudinal direction by 3,
Printing is performed on the printing paper 6 between the plate cylinder 1 and the impression cylinder 5, and for some reason the plate cylinder 1 and the furnisher roller 10, which have a difference in outer speed (m), come into contact and the furnisher roller 1
0 receives a load in the same rotational direction, the one-way clutch 43 slips, and this causes rotation transmission lI!
Damage to the sides 29 is prevented, and damage to the surfaces of the plate cylinder 1 and the furnisher roller 1o is also prevented.

[Effects of the Invention] As described above, according to the present invention, there are flaps on both sides of the ink pan stand on which the ink pan is placed. Since the bearing part that rotatably supports the printing press roller is provided so as to be movable in the front and rear directions with respect to the plate cylinder, and the operating part is provided to move this bearing part in the same direction, the ink pan can be moved up and down, and By operating the operation unit and moving the two annulation rollers in the front and back direction relative to the plate cylinder, it is possible to adjust the plate size for plate cylinders with different diameters. It is possible to adjust the appropriate spacing and position of the furnisher roller, and the movement of the furnisher roller on the ink pan is in the front and back direction with respect to the plate cylinder, not in the vertical direction, and the furniture roller and What is the vertical distance from the ink pan (because it is kept constant)? The amount of ink immersed in the Nirasha roller is always constant, and R passes of ink can be applied to the plate cylinder (both 18T).

In addition, as a rotation transmission mechanism that transmits the drive of the drive source to the furniture roller, the rotation of the universal joint that rotates in response to the rotation from the drive source is transmitted to the spur gear provided on the furniture roller. Rotation from the drive source can always be accurately transmitted to the furnisher roller, and a constant amount of ink can always be supplied to the plate cylinder. In addition, the rotation transmission mechanism is equipped with a one-way clutch that allows free rotation in the rotational direction, so the furnishing roller and plate cylinder, which have different outer circumferential speeds, come into contact and the furnishing roller receives a load in the same rotational direction. At this time, the rotation transmission mechanism slips idle due to the one-way clutch, which prevents damage to the drive unit and also prevents damage to the surface of the shallow furniture 5. In addition, since the rotation transmission mechanism is equipped with a converter that changes the speed of the rotation of the drive source and transmits it to the universal joint, for example, when it is desired to change the rotation speed of the furnisher roller depending on the amount of ink being supplied, This can be easily changed.

Furthermore, the universal joint is equipped with splines,
Since one end of this universal joint is supported by the bearing that supports the furnisher roller, the ink pan moves up and down according to the diameter of the plate cylinder, and the drive source generated when the furnisher roller is moved forward. The universal joint responds to changes in the angle of the furniture roller, and the spline expands and contracts to respond to changes in length, making it possible to reliably transmit rotation from the drive source to the furniture roller. .

[Brief explanation of the drawing]

Figures 1 to 3 of the cylinder (Fig. 1) show one embodiment of the present invention; Fig. 1 is a longitudinal side view of the invention; Fig. 2 (Fig. 3) is a longitudinal sectional front view of the invention; Figure 4 is an explanatory view of the right!1111 side showing the mounting angle of the transfer RB operation part shown in Figure 2 at different angles. 1... Same edition, 7... Ink pan 8...Ink pan stand 9...Movement operation section 10...Furnisher roller 11...Bearing section 12...Slide block 14...1=+2 part 15...Screw shaft 16...・Screw bearing part 17...handle 2
... Rotation transmission mechanism 30 ... Shaft 31 ... Spur gear 32 ... Idle gear 33 ... Drive gear 34 ... Shaft 35 ... Spline shaft 3
6... Spline shaft cylinder 37... Universal joint 38... Don 39... Shaft 40.
...Bin 4]...Speed change 42...Output shaft 43...
・One-way clutch

Claims (3)

[Claims] (1) A fannisher roller whose undertone part is immersed in ink in an ink pan is rotatably supported on an ink pan that moves in the vertical direction, and this fannisher roller is connected to a desired drive source via a rotation transmission mechanism. In a device that rotates and supplies the ink in the ink pan to the plate cylinder, bearings that rotatably support the furnisher roller are placed on both sides of the ink pan stand on which the ink pan is placed, so that the bearings are movable in the front and rear directions with respect to the plate cylinder. What is claimed is: 1. An ink supply device for a gravure rotary press, comprising an operating section for moving the bearing section in the same direction. (2) The rotation transmission mechanism consists of a spur gear provided on the furniture roller, a universal joint that transmits rotation to the spur gear, a one-way clutch that allows free rotation in the rotation direction, and a universal joint that changes the speed of the rotation of the drive source. 2. The ink supply device for a gravure rotary press according to claim 1, comprising a converter for transmitting the ink to the rotogravure rotary press. (3) The ink in the rotogravure rotary press according to claim (2), wherein the universal joint constituting the rotation transmission mechanism has a spline, and one end of the universal joint is supported by a bearing that pivotally supports the fannisher roller. Feeding device.