JPH09187920A - Furnisher roller device of gravure printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically change the arrangement of the setting position of a furnisher roller, reduce the burden of an operator in the initial setting before the printing operation and shorten the arranging time. SOLUTION: The state of a positioning mechanism 50 is changed by providing a control means 80 on a setting and removing means 20 for setting and removing a furnisher roller 11 and controlling a positioning mechanism driving means 60 by the controlling means, and the setting of the setting position of the furnisher roller 11 is carried out automatically. At that time, the positioning mechanism driving means 60 is controlled by the control means 8 in reference to an information K stored in a storage means 70 (the information on the state of the positioning mechanism 50 corresponding to the setting position of the furnisher roller 11 determined in compliance with the circumferential length of a cylindrical plate 2).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finisher roller device for a gravure printing machine, and can be used when changing the setting of the wearing position of the finisher roller according to the change in the circumferential length of the plate cylinder.

[0002]

BACKGROUND ART In general, an inking device of a gravure printing machine is a so-called dribbling system in which ink is put in an ink pan, and a plate cylinder is dipped in the ink pan to transfer the ink, or a furnisher compatible with high-speed printing. Laura (furnishe
There is also a type of furniture roller system in which ink is pushed into the concave part of the plate surface of the plate cylinder by a rubber roller called r roller).

In the latter furnishing roller type inking device, the furnishing roller is usually constructed so as to be able to approach and separate from the plate cylinder and is detachable. Then, when the printing operation is performed, the furniture roller is arranged at a landing position in a state of being close to the plate cylinder, and when the printing operation is not performed such as when changing the plate, the furniture roller is moved to the plate cylinder. It is placed in a detached position where it becomes a separated state.

By the way, a gravure printing machine can be equipped with a plurality of plate cylinders of different sizes having different circumferential lengths according to a desired printing request. The mounting position of the furniture roller must be changed according to the size (circumferential length) of the plate cylinder.

Conventionally, the change of the wearing position of the furniture roller has been performed by the following various methods. That is, the position of the furniture roller is changed by manually operating the handle, and the attachment / detachment operation of the furniture roller itself is performed manually, or the movement of the furniture roller is restricted and the furniture roller is moved to a predetermined mounting position. A stopper is provided for stopping at this position, the set position of this stopper is changed by manually operating the handle, and the attachment / detachment operation itself is performed by a drive means such as an air cylinder. A method has been adopted in which the position of the roller or the setting position of the stopper is electrically digitally displayed or mechanically displayed on a dial gauge so that the handle can be operated while observing these displays.

[0006]

However, when the above-mentioned various methods are adopted for changing the wearing position of the furniture roller, in any of the methods, the operator must manually operate the handle, and the printing operation is not performed. There is a problem that the operator's burden is large during the initial setup before the operation. In other words, as a preparatory work before the printing operation, the operator puts the ink in the ink pan, transfers the ink to the finisher roller, adjusts the gap between the plate cylinder and the finisher roller to an appropriate value, and Since it is necessary to perform all the respective operations of transferring the ink, the operator is required to reduce the time and labor required for the initial setup.

Further, in each of the above-mentioned various methods, since the steering wheel operation is manually performed by the operator, it takes a long time, a setting error may occur, and some experience is required. was there.

The object of the present invention is to automatically change the setting position of the finisher roller, to reduce the burden on the operator in the initial setup before the printing operation and to shorten the setup time. It is an object of the present invention to provide a furniture roller device for a gravure printing machine.

[0009]

SUMMARY OF THE INVENTION According to the present invention, for a plurality of types of plate cylinders having different circumferential lengths which can be selectively mounted on one gravure printing machine, a fanni is provided according to the circumferential length of each plate cylinder. The purpose of the present invention is to achieve the above-mentioned object by automatically determining the attachment position of the Shallow roller. Specifically, the furnishing roller device of the gravure printing machine of the present invention comprises a furnishing roller for supplying ink to the plate surface of the printing drum, and the furnishing roller for making the furnishing roller close to and away from the printing drum. A detachment unit for attaching and detaching the roller is provided, wherein the attach / detach unit is configured to move the support mechanism to rotatably support the furniture roller, and move the support mechanism to move the furniture roller close to or away from the plate cylinder. Support mechanism driving means, a positioning mechanism for limiting the movement of the support mechanism by the support mechanism driving means to determine a landing position at which the finisher roller is in the proximity state to the plate cylinder, and a state of the positioning mechanism. And a state of the positioning mechanism corresponding to the mounting position of the finisher roller, which is determined according to the circumferential length of the plate cylinder. Storage means for storing, and control means for setting the state of the positioning mechanism to a state corresponding to a desired landing position of the furniture roller by controlling the positioning mechanism driving means in accordance with the information stored in the storage means. It is characterized by having.

Here, the "state of the positioning mechanism" is the state of the positioning mechanism which is the object of control by the control means, and the rotational displacement amount, moving displacement amount, and deformation amount of some or all of the components of the positioning mechanism. , The position, the phase, the posture, or the shape or size of the positioning mechanism represented by the physical change amount such as the temperature change amount or the pressure change amount. For example, in the case of the configurations of FIGS. 1 and 4 described later, the position (advancing / retreating state) of the tip 52A of the stop screw 52, which is a component of the positioning mechanism (positioning mechanism driving means side element), is the “state of the positioning mechanism”. This state is captured by the rotation amount of the stop screw 52. In the case of the configuration shown in FIG. 5 described later, the position of the stopper 152, which is a component of the positioning mechanism (positioning mechanism driving means side element), is the “positioning mechanism state”, and this state is translated in parallel. It is captured in quantity. Furthermore, in a configuration that utilizes thermal deformation (for example, elongation deformation of a bar) due to temperature changes of the components of the positioning mechanism, the position, shape, size, etc. of the components that change with the thermal deformation are "positioning mechanism". State of
Therefore, this state may be captured by the temperature, or may be captured by the displacement amount of each part due to the deformation.

In the present invention as described above, first, the support mechanism is moved by the support mechanism driving means to separate (retract) the finisher roller from the plate cylinder mounting position, and in this state, a desired print request is met. A plate cylinder having a circular circumference is mounted on the gravure printing machine.

Further, the mounting position of the furniture roller is determined by changing the state of the positioning mechanism in accordance with the circumferential length of the plate cylinder which has been or has been selectively mounted. At this time, the control means refers to the information stored in the storage means, controls the positioning mechanism driving means according to this information, and changes the state of the positioning mechanism, so that the attachment position of the finisher roller is changed. The control is performed according to the circumference length of.

Next, with the wearing position of the furniture roller determined in accordance with the circumferential length of the plate cylinder, the support mechanism is moved by the support mechanism driving means to bring the furniture roller close to the plate cylinder. After the furnishing roller is arranged at the landing position determined in step 1, the printing operation is started.

Therefore, since the control means automatically controls the state of the positioning mechanism in accordance with the information in the storage means, the mounting position of the finisher roller according to the circumferential length of the plate cylinder can be quickly and accurately determined. You will be able to decide. Therefore, compared with the conventional case where the setting position of the finisher roller is changed manually, the burden on the operator in the initial setup before the printing operation is reduced and the setup time is shortened. Planned.

Further, by automating the setting change of the wearing position of the furniture roller as described above, the possibility of occurrence of setting error is eliminated, and the experience required for the operator to change the setting becomes unnecessary, and anyone can do it. It becomes possible to easily change the setting of the wearing position, thereby achieving the above-mentioned object.

Further, the control means does not perform the control while feeding back the state (control result) of the positioning mechanism which is the controlled object, but only the control means according to the information stored in the storage means in advance, for example, The positioning mechanism driving means may be operated for a certain period of time obtained from the stored information to perform control such that the state of the positioning mechanism is set to a state corresponding to the desired landing position of the furniture roller. However, the attachment / detachment means is provided with an attachment position detection means for detecting the state of the positioning mechanism in order to grasp at which position the attachment position of the furniture roller determined by the positioning mechanism is currently determined. , The control means is configured to control the positioning mechanism driving means while inputting a detection signal from the landing position detection means, so-called feedback control (here, the present state of the positioning mechanism as a control result is somehow It is desirable to perform feedback control (in a broad sense used for control). With such a configuration, the setting change of the wearing position of the furniture roller can be performed more accurately.

Further, the supporting mechanism and the supporting mechanism driving means which constitute the attaching / detaching means may be structured such that, for example, the furniture roller is moved in parallel so as to be moved closer to or separated from the plate cylinder. However, the support mechanism is configured to rotatably support the furniture roller and pivotally support the furniture roller about an axis parallel to the rotation axis of the furniture roller. To
With the structure in which the support roller is swung to swivel the furniture roller to move it closer to or away from the plate cylinder, the furnishing roller can be attached / detached with a simple structure.

Here, in the case where the structure is detachable by rotating the furniture roller as described above,
The positioning mechanism includes a stopper ring that is fixed to the support mechanism and rotates with the support mechanism, and a stop screw that limits the rotation of the stopper ring by abutting the tip of the stopper ring. It is desirable that the mechanism driving means be configured to rotate the stop screw to move the stop screw forward and backward.

In the above-described furniture roller device of the gravure printing machine of the present invention, the furniture roller may be rotated around the plate cylinder instead of being rotationally driven by itself. It is desirable to provide a furniture roller drive means for rotationally driving the shear roller. With such a configuration, the peripheral speed of the furniture roller and the peripheral speed of the plate cylinder can be set differently,
Further smoothing of ink transfer is achieved.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the overall configuration of a furniture roller device 10 of a gravure printing machine according to this embodiment. 2 to 4 show the detailed configuration of each part of the furniture roller device 10. In FIG. 1, a furnishing roller device 10 includes a furnishing roller 11 that supplies ink from an ink pan 1 in which ink is stored to a printing surface of a printing drum 2, and a furnishing roller 11 that is close to and separated from the printing drum 2. It comprises an attaching / detaching means 20 for attaching / detaching the furniture roller 11, and a furniture roller driving means 90 for rotationally driving the furniture roller 11.

The attachment / detachment means 20 rotatably (rotatably) supports the furniture roller 11, and can rotate (revolve) the furniture roller 11 about an axis parallel to the rotation axis (rotation axis) of the furniture roller 11. A support mechanism 30 that supports the support mechanism 30, a support mechanism drive unit 40 that rotates the support mechanism 30 to move the furniture roller 11 closer to and away from the plate cylinder 2, and a support mechanism 3 by the support mechanism drive unit 40.
Positioning mechanism 50 that limits the movement of 0 and determines the mounting position where the furniture roller 11 is in the proximity state to the plate cylinder 2.
And a memory for preliminarily storing the state of the positioning mechanism 50 corresponding to the mounting position of the positioning mechanism driving means 60 for changing the state of the positioning mechanism 50 and the finisher roller 11 determined according to the circumferential length of the plate cylinder 2. By controlling the positioning mechanism driving means 60 according to the means 70 and the information K stored in the storage means 70, the control means 80 for setting the state of the positioning mechanism 50 to the state corresponding to the desired attachment position of the finisher roller 11. And is configured.

Further, the attaching / detaching means 20 comprises a positioning mechanism 50.
The attachment position detecting means 85 for detecting the state of the positioning mechanism 50 is provided in order to grasp which position the attachment position of the furniture roller 11 is currently determined. The detection signal D from the landing position detection means 85 is sent to the control means 80, whereby the feedback control (in a broad sense) of the positioning mechanism drive means 60 by the control means 80 is performed.

In FIG. 1, the state in which the furnishing roller 11 is placed in the mounting position by the attaching / detaching means 20 is shown by a solid line, and the state in which it is placed in the releasing position is shown by a two-dot chain line. Further, when the circumferential length of the plate cylinder 2 is small, the state in which the finisher roller 11 is arranged at the mounting position and the corresponding arrangement state of the ink pan 1 are shown by a chain line.

FIG. 2 shows a horizontal sectional view of the furniture roller device 10. In FIG. 2, the right side is the driving side and the left side is the operating side. Further, FIG. 3 shows an elevation view of FIG. 2 viewed from the right side. 2 and 3, both ends of the rotary shaft (rotating shaft) 12 of the furniture roller 11 are rotatably supported by one end of each arm 31 via bearings 13. A swivel shaft (revolution shaft) 32 arranged in parallel with the rotary shaft 12 of the furniture roller 11 is fixed to the other end of each arm 31 via intermediate members 33 and 34. Therefore, each arm 31 and the pivot 3
2 and the intermediate members 33 and 34 are integrally rotatable with respect to a fixed portion 3 such as a frame, which is a stationary portion of the gravure printing machine, whereby a fan member supported by one end of each arm 31. The shroller 11 is capable of turning around a turning shaft 32. The arms 31, the swivel shaft 32, the intermediate members 33, 34, and the like constitute a support mechanism 30.

Further, since the furniture roller 11 is usually a rubber roller and is a consumable item, the rotary shafts 12 extending on both sides of the furniture roller 11 are each provided with a two-divided type coupling 14. Therefore, the furniture roller 11 is replaceable.

The arm 3 arranged on the drive side on the right side in FIG.
1, a gear 91 fixed to the rotating shaft 12, a gear 94 fixed to an intermediate shaft 93 rotatably supported by the arm 31 via a bearing 92 and meshing with the gear 91,
A pulley 95 fixed to the intermediate shaft 93, a pulley 97 fixed to a furniture drive shaft 96 arranged concentrically with the swivel shaft 32, and a belt 98 stretched between the pulleys 95, 97 are provided. Is rotated with the arm 31. The furniture drive shaft 96 is connected to the furniture roller drive means 90.

Therefore, when the furniture roller drive means 90 is operated, this rotation is transmitted in the order of the furniture drive shaft 96, the pulley 97, the belt 98, the pulley 95, the intermediate shaft 93, the gear 94, the gear 91, and the rotary shaft 12. The furniture roller 11 rotates (rotates). Although the swivel shaft 32 and the furniture drive shaft 96 are concentrically arranged, they are independently rotatable, and the swivel shaft 32 swivels (revolves) the furniture roller 11.
On the other hand, on the other hand, the furniture drive shaft 96 is configured to rotate (rotate) the furniture roller 11. Further, in the present embodiment, the swivel shaft 32 and the furniture drive shaft 9 are
6 are arranged concentrically with each other, but these do not necessarily have to be arranged at concentric positions. Further, the furniture roller driving means 90 may be fixed to the arm 31 and rotated together with the arm 31 instead of being fixed to the fixed portion 3 such as a frame.

The furniture roller driving means 90 is composed of a variable speed motor, and the peripheral speed of the furniture roller 11 can be arbitrarily set. During the printing operation, the gap between the furniture roller 11 and the plate cylinder 2 is usually set to about 0.2 to 0.5 mm for ink transfer, and the peripheral speed of the furniture roller 11 is set. Is the plate cylinder 2
It is set slower than the peripheral speed.

On the outside of each arm 31, a support mechanism driving means 40 composed of an air cylinder is provided. As shown in FIG. 1, the support mechanism driving means 40 is appropriately connected to each arm 31 (support mechanism 30) via an intermediate member, and the rod 41 is moved back and forth to move each arm 3 to each other.
It is designed to turn 1. Therefore, when the support mechanism driving means 40 is operated, the furniture roller 11 is moved toward and away from the plate cylinder 2, and the attachment and detachment of the furniture roller 11 is realized. In addition, although the support mechanism driving means 40 is configured by the air cylinder in the present embodiment, the support mechanism driving means 40 is not limited to this, and may be configured by using, for example, a reversible motor or a hydraulic cylinder.

FIG. 4 shows a detailed structure of a portion of the attaching / detaching means 20 corresponding to the upper right position in FIG. In FIG. 4, the positioning mechanism 50 is the turning shaft 3 of the support mechanism 30.
A stopper ring 51 (supporting mechanism side element) that is fixed to both ends of (2, but one side is fixed via an intermediate member 33) and swivels together with the supporting mechanism 30, and a tip 52A is brought into contact with the stopper ring 51. And a stop screw 52 (positioning mechanism driving means side element) that restricts the turning of the stopper ring 51.

The stop screw 52 meshes with a female screw member 53 fixed to the fixing portion 3. Stop screw 52
The shaft 54 is provided with a worm gear 61, and the worm gear 61 is connected with a shaft 62 of a positioning mechanism driving means 60 constituted by a synchronous motor. Therefore, when the positioning mechanism driving means 60 operates,
This rotation is transmitted in the order of the shaft 62, the worm 61A, the worm wheel 61B, and the shaft 54 of the stop screw 52, and the stop screw 52 rotates so that its tip 52A advances and retracts in the direction along the shaft 54.

The stopper ring 51 is formed by cutting out a part of the outer circumference of the disk-shaped member, and the contacting portion 51A with which the tip 52A of the stop screw 52 is brought into contact is formed in this cutout portion. Therefore, rotation of the stopper ring 51,
That is, the rotation of the arm 31 is limited by the tip 52A of the stop screw 52, which allows the furniture roller 1 to rotate.
The landing position Q of 1 (position in which the printing drum 2 is in the proximity state) is determined. For example, when the front end 52A of the stop screw 52 is advanced further than the position shown in FIG. 4, the setting position of the mounting position Q is changed to the position of Q1 to become the mounting position Q corresponding to the plate cylinder 2 having a large circumferential length. In the case of retracting from the position of FIG. 4, the setting of the landing position Q is changed to the position of Q2, and the landing position Q corresponds to the plate cylinder 2 having a small circumferential length.

On the other hand, the removal position T of the furniture roller 11
The (position separated from the plate cylinder 2) is determined to be one position depending on the state in which the air cylinder forming the support mechanism driving means 40 is maximally retracted. However,
According to the present invention, the removal position T of the furniture roller 11 is
However, it is not limited to the configuration in which the position is determined to be one position. FIG.
In the figure, the state of the stopper ring 51 when the furniture roller 11 is arranged at the detached position T is shown by a chain double-dashed line.

Further, the shaft 54 of the stop screw 52 is connected with a landing position detecting means 85 constituted by a rotary encoder via gears 86 and 87. The landing position detecting means 85 emits a number of pulses corresponding to the rotation amount of the stop screw 52. This landing position detection means 8
The detection signal (generated pulse) D output from 5 is sent to the control means 80.

The control means 80 is composed of a microcomputer having a CPU and program software incorporated therein. The control means 80 inputs the detection signal D fed back from the landing position detection means 85, and sends the control signal S to the positioning mechanism drive means 60 based on the information K stored in advance in the storage means 70. It is adapted to control the operation of the positioning mechanism driving means 60. The control means 80 detects the rotation amount of the stop screw 52 based on the detection signal D, and thereby grasps the forward / backward state of the tip 52A of the stop screw 52, that is, the position where the attachment position of the furniture roller 11 is currently determined. It is supposed to do.

The storage means 70 is composed of an existing storage medium such as a floppy disk or a hard disk, or information directly written in the program software itself. The information K stored in the storage means 70 is as follows. That is, for each of the plurality of types of plate cylinders 2 having different circumferential lengths that can be mounted on the gravure printing machine,
The landing positions of the furniture roller 11 according to the circumference length are calculated in advance, and each landing position is replaced with the encoder pulse number (the detection signal D sent from the landing position detecting means 85). As a result, a table showing the relationship between the circumferential length of each plate cylinder 2 and the number of encoder pulses corresponding thereto is created, and this table may be stored in the storage means 70 as the storage information K.

Then, the control means 80 counts the number of encoder pulses as the detection signal D from the landing position detection means 85 to determine at which position the tip 52A of the stop screw 52 is currently set, that is, the finisher. It is possible to know which position the roller 11 is currently attached to. Therefore, the control unit 80 continues the feedback control (in a broad sense) of the positioning mechanism driving unit 60 until the state of the stop screw 52 corresponds to the target landing position obtained by referring to the table information K, and then the stop screw. It is designed to rotate 52.

In this embodiment, the attachment / detachment operation of the furniture roller 11 is performed as follows. First, as indicated by a chain double-dashed line in FIG. 1, the arm 31 (support mechanism 30) is rotated by the support mechanism driving means 40 to separate (retract) the finisher roller 11 from the plate cylinder 2, and in this state The plate cylinder 2 having a circumferential length corresponding to the printing request such as the order of 1 is mounted on the gravure printing machine.

In addition to the work of mounting the plate cylinder 2 described above,
Alternatively, the mounting position of the furniture roller 11 is automatically set before or after the mounting work. In this automatic setting, first of all, the size (circumferential length, diameter) of the plate cylinder 2
An operator's input instruction as to whether or not the user wears is given to the control means 80, and the information K stored in the storage means 70 is given by the control means 80 having received this input instruction.
By referring to, the attachment position of the finisher roller 11 corresponding to the circumferential length of the plate cylinder 2 that is already installed or is about to be installed is grasped. That is, the control means 80 uses the stored information K to finish the furniture roller 1 for the input information such as the size (circumferential length, diameter) of the plate cylinder 2.
The output information of the arrival position of 1 is obtained. Subsequently, the positioning mechanism driving means 60 is controlled by the control means 80 so that the actual landing position of the furniture roller 11 is set to the landing position according to the stored information K (the landing position obtained as the output information).
Is controlled to change the state of the stop screw 52.

Next, in a state where the wearing position of the furniture roller 11 is determined according to the circumferential length of the plate cylinder 2, the arm 31 (supported by the support mechanism driving means 40 as shown by the solid line or the one-dot chain line in FIG. After rotating the mechanism 30) to bring the furniture roller 11 close to the plate cylinder 2 and disposing the furniture roller 11 at the newly determined attachment position, the ink pan 1 is also disposed at a position corresponding to this. Start printing operation.

According to this embodiment, the following effects can be obtained. That is, the state of the positioning mechanism 50 (the position of the tip 52A of the stop screw 52) is automatically changed and controlled by the control means 80 according to the information K stored in the storage means 70. The wearing position of the furniture roller 11 can be determined quickly and accurately. Therefore, as compared with the conventional case where the setting of the wearing position of the furniture roller 11 is changed manually,
The burden on the operator in the initial setup before the printing operation can be reduced and the setup time can be shortened.

Further, by automating the setting change of the wearing position of the furniture roller 11, it is possible to eliminate the risk of a setting error, and the experience required for the operator to change the setting becomes unnecessary, so that anyone can easily wear it. It is possible to provide the furniture roller device 10 capable of changing the setting of the position.

Further, since the arrival position detecting means 85 is provided and the control for feeding back the detection signal D is performed, the setting change of the arrival position of the furniture roller 11 can be performed more accurately. And the landing position detection means 8
Since 5 is composed of a rotary encoder,
The desired control can be realized reliably with a simple configuration.

Since the furniture roller driving means 90 is provided, the peripheral speed of the furniture roller 11 and the plate cylinder 2
Since the peripheral speed of the ink can be set differently, it is possible to further smooth the ink transfer.

It should be noted that the present invention is not limited to the above-described embodiment, and modifications and the like within a range that can achieve the object of the present invention are included in the present invention. That is, in the above-described embodiment, the support mechanism 30 and the support mechanism driving means 40 that constitute the attachment / detachment means 20 are configured to rotate the furniture roller 11 to move closer to and away from the plate cylinder 2. The supporting mechanism and the supporting mechanism driving means of FIG.
The translation of the furniture roller 11 as shown in FIG.
1. A furniture roller device 1 configured to be close to and away from each other
It may be 00. However, since the furniture roller 11 can be attached / detached with a simple structure, the swivel configuration as in the above embodiment is preferable.

In FIG. 5, the furniture roller device 10
Reference numeral 0 includes a support mechanism 130 that rotatably supports the furniture roller 11, and a support mechanism drive unit (not shown) that moves the furniture roller 11 in parallel with the support mechanism 130. The contact member 151 fixed to the support mechanism 130 and moving together with the support mechanism 130.
The (positioning mechanism side element) and the stopper 152 (positioning mechanism driving means side element) that is moved in parallel by the positioning mechanism driving means (not shown) constitute the positioning mechanism 150.

Further, in the above-described embodiment, the attaching / detaching means 20 is provided with the landing position detecting means 85 which is a rotary encoder, but the present invention uses the detection signal D of such landing position detecting means 85 for feedback control. The configuration is not limited to (broad sense), and the landing position detection means may be omitted and the control means may perform control based on the information in the storage means without feedback.

Further, the landing position detecting means is not limited to the rotary encoder as in the above embodiment,
For example, as shown in FIG. 5, it may be a landing position detecting means 185 configured by a gap sensor or a light beam sensor for detecting the position of the stopper 152, or any means that can detect the state of the positioning mechanism. . However, the rotary encoder detection as in the above embodiment is preferable in that the desired control can be surely realized with a simple configuration.

Further, in the above embodiment, the furniture roller driving means 90 for rotationally driving the furniture roller 11 is used.
However, the furniture roller driving means 90 may be omitted and the furniture roller 11 may be rotated around the plate cylinder 2. However, it is desirable to provide the furniture roller driving means 90,
By doing so, the peripheral speed of the furniture roller 11 and the peripheral speed of the plate cylinder 2 can be set differently, so that the transfer of ink can be further smoothed.

Further, in the above embodiment, the belt 98 and the pulleys 95, 9 are provided in the drive transmission path between the furniture roller drive means 90 and the furniture roller 11 as shown in FIG.
7 and the gears 91 and 94 are provided, the present invention is not limited to such a configuration, and for example, the drive transmission means may be a gear only or a belt / pulley only.

Further, although the finisher roller device 10 of the above-described embodiment is configured to use the finisher roller 11 as a pickup roller for pumping ink from the ink pan 1 in which ink is collected to the plate surface of the plate cylinder 2, the present invention The above-described furniture roller device may be applied to a cascade type configuration in which ink is poured from above toward a valley where the plate cylinder and the furniture roller are close to each other.

Further, in the above embodiment, the swivel shaft 32 is
It has a role as a connecting member for connecting the arms 31 on both sides to integrally rotate them, and a role as an axis of rotation of the support mechanism 30 and the furniture roller 11, respectively. You may comprise the member which plays a role by another member. That is, a member that functions as a connecting member for the arms 31 on both sides and that swivels together with the arms 31 on both sides, and a role that is fixed to the fixed portion 3 such as a frame and that serves as an axis of swivel (a role that simply determines the position of the swivel center). )
It is also possible to provide a non-rotating rod that fulfills the above requirement.

[0053]

EXAMPLES Specific numerical examples for implementing the furniture roller device 10 of the above embodiment are as follows. The circumference of the plate cylinder 2 ranges from the minimum 450 mm to the maximum 90 mm.
The diameter of the furniture roller 11 is 10 mm.
0 mm. The center position of the plate cylinder 2 is L1 = 389.33 m in the horizontal direction from the turning center of the furniture roller 11.
m, L2 = 49.37 mm is displaced in the vertical direction. The mounting position of the furniture roller 11 is a position at an angle θ from the horizontal position, and the removal position is a position at an angle θ + α from the horizontal position.

The clearance M between the finisher roller 11 and the plate cylinder 2 arranged at the mounting position is set to 2 mm, but it can be changed as appropriate. Further, the installation position of the furniture roller 11 to be set is determined by the tip 52 of the stop screw 52.
The amount of displacement of the position A from the reference position is taken as X, and the amount of rotation of the stop screw 52 corresponding to this amount of displacement X is taken as the number of encoder pulses N when rotated from the reference position.

With the above settings, the table information K stored in the storage means 70 is shown below. When the circumferential length of the plate cylinder 2 is 450 mm, the gap M = 2 mm and θ =
20.88 degrees, α = 67.25 degrees, θ + α = 88.13
(When the gap M = 0 mm, θ = 20.36 °, α = 67.
77 degrees, θ + α = 88.13 degrees), displacement amount X = 0.32
mm, the number of encoder pulses N = 32. Also, when the circumference of the plate cylinder 2 is 700 mm, which is a medium circumference, the gap M = 2 m
m = θ = 29.83 degrees, α = 58.30 degrees, θ + α =
88.13 degrees (with gap M = 0 mm, θ = 29.42 degrees,
α = 58.71 degrees, θ + α = 88.13 degrees), displacement X
= 6.22 mm, and the number of encoder pulses N = 622. Further, when the circumferential length of the plate cylinder 2 is 900 mm, which is the maximum, the clearance M = 2 mm, θ = 36.23 degrees, and α = 51.
90 degrees, θ + α = 88.13 degrees (with gap M = 0 mm, θ
= 35.84 degrees, α = 52.30 degrees, θ + α = 88.1
3 degrees), the displacement amount X is 10.71 mm, and the encoder pulse number N is 1071. In addition, between these data,
Circumferential length of plate cylinder 2 is 460 mm, 470 mm, 480 m
m ,. . . , 880 mm, 890 mm, etc., the table information K contains a lot of data.

[0056]

As described above, according to the present invention, the state of the positioning mechanism is automatically changed and controlled by the control means in accordance with the information in the storage means. The wearing position of the furniture roller can be determined quickly and accurately. For this reason, compared to the case where the setting position of the finisher roller is manually changed as in the conventional case, the burden on the operator in the initial setup before the printing operation can be reduced and the setup time can be shortened. The effect is that you can. In addition, by automating the setting change of the wearing position of the furniture roller, it is possible to eliminate the risk of setting mistakes, and it is not necessary for the operator to have the experience required to change the setting. In addition, there is an effect that the setting of the landing position can be changed.

Further, when the attaching / detaching means is provided in the attaching / detaching means and the control means is configured to control the positioning mechanism driving means while inputting a detection signal from the attaching position detecting means, the finisher roller There is an effect that the setting of the wearing position can be changed more accurately.

Further, when the supporting mechanism and the supporting mechanism driving means are configured to rotate the furniture roller so as to be close to and away from the plate cylinder, the effect that the attachment and detachment of the furniture roller can be realized with a simple structure is achieved. is there.

In the case where the support mechanism and the support mechanism drive means are configured to rotate the furniture roller to move closer to and away from the plate cylinder, the positioning mechanism may include a stopper ring and a stop screw. There is an effect that the attachment position of the furniture roller can be defined with a simple structure.

Further, when the furniture roller driving means is provided, the peripheral speed of the furniture roller and the peripheral speed of the plate cylinder can be set differently, so that the ink transfer can be further smoothed. The effect is that you can do it.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a furniture roller device according to an embodiment of the present invention.

FIG. 2 is a horizontal sectional view of the furniture roller device according to the embodiment.

FIG. 3 is an elevation view of FIG. 2 seen from the right side.

FIG. 4 is a detailed configuration diagram showing a part of the attaching / detaching means of the embodiment.

FIG. 5 is a schematic configuration diagram showing a modified embodiment of the present invention.

FIG. 6 is an explanatory diagram of specific numerical examples when the embodiment is carried out.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ink pan 2 Plate cylinder 10 Finisher roller device 11 Finisher roller 20 Attachment / detachment means 30 Support mechanism 31 Arm constituting support mechanism 32 Swiveling shaft 33, 34 constituting support mechanism 40 Intermediate member 40 constituting support mechanism 40 Support mechanism driving means (Air cylinder) 50 Positioning mechanism 51 Stopper ring that constitutes the positioning mechanism 52 Stop screw that constitutes the positioning mechanism 60 Positioning mechanism drive means (synchronous motor) 70 Storage means 80 Control means 85 Attachment position detection means (rotary encoder) 90 Fanni Charola drive means (variable speed motor)

Claims (5)

[Claims] 1. A detachable attachment / detachment comprising: a finisher roller for supplying ink to a plate surface of a plate cylinder; and a detaching unit for detaching the furnisher roller by moving the furnisher roller close to and away from the plate cylinder. The means includes a support mechanism that rotatably supports the furniture roller, a support mechanism drive means that moves the support mechanism to move the furniture roller close to and away from the plate cylinder, and a support mechanism drive means. A positioning mechanism that limits the movement of the support mechanism to determine a landing position at which the furniture roller is in a proximity state to the plate cylinder;
Positioning mechanism driving means for changing the state of the positioning mechanism, storage means for storing in advance the state of the positioning mechanism corresponding to the landing position of the furniture roller determined according to the circumferential length of the plate cylinder, Control means for setting the state of the positioning mechanism to a state corresponding to a desired landing position of the furniture roller by controlling the positioning mechanism driving means in accordance with the information stored in the storage means. The gravure printing machine's furniture roller device. 2. The furniture roller device for a gravure printing machine according to claim 1, wherein the attaching / detaching means grasps at which position the attachment position of the furniture roller determined by the positioning mechanism is currently determined. In order to achieve the above, a mounting position detecting means for detecting the state of the positioning mechanism is provided, and the control means is configured to control the positioning mechanism driving means while inputting a detection signal from the mounting position detecting means. The gravure printing machine's furniture roller device. 3. The furniture roller device for a gravure printing machine according to claim 1 or 2, wherein the supporting mechanism rotatably supports the furniture roller and is parallel to a rotation axis of the furniture roller. The support mechanism drive means is configured to support the furniture roller so as to be rotatable about an axis, and the support mechanism driving means is configured to rotate the support mechanism to rotate the furniture roller so as to be close to or separated from the plate cylinder. A furnishing roller device for a gravure printing machine, which is characterized by being configured. 4. The furniture roller device for a gravure printing machine according to claim 3, wherein the positioning mechanism is a stopper ring fixed to the support mechanism and pivotable together with the support mechanism, and a tip end of the stopper ring is abutted against the stopper ring. A gravure printing characterized in that it is provided with a stop screw that makes contact with the stopper ring to limit the rotation of the stopper ring, and that the positioning mechanism driving means rotates the stop screw to move the stop screw forward and backward. Machine roller device. 5. The furniture roller device of the gravure printing machine according to claim 1, wherein:
A furnishing roller device for a gravure printing machine, comprising a furnishing roller driving means for rotationally driving the furnishing roller.