JP2572123B2 - Inca mobile printing press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to a printing press having an inker detachably attached to a printing press main body, and in particular, an improvement for easily mounting the inker to the printing press main body. About.

<Related Art> In a rotary type printing press, for example, a satellite style printing press, for example, a Zammel printing press, is generally configured such that an inker can be attached to and detached from a printing press main body in the near and far directions.

The reason why such a detachable configuration is adopted is that it is necessary to remove the plate cylinder from the printing press main body for adjusting the printing pressure or the like. Another reason is that it is necessary to independently drive each of the inking devices in the inker for cleaning the ink roller, passing the ink, and adjusting the nip width.

Here, a driving mechanism of a conventional three-color printing press provided with a detachable inker will be briefly described with reference to FIG.

In FIG. 19, a blanket cylinder 2 is supported by a frame in a printing press main body 1, and three plate cylinders 3 are arranged so as to be in contact with the outer peripheral surface of the blanket cylinder 2. A gear 4 is integrally fixed to one end of each plate cylinder 3 in the axial direction.
And the driving gear 5 for the respective gears.

The inkers 6 are provided with the same number of inking devices 7 as the plate cylinder 3. Each inking device 7 corresponds to each plate cylinder 3 so that the final ink roller 8 can contact the plate surface of each plate cylinder 3 and apply ink when the inker 6 is mounted on the printing press main body 1. It is arranged.

In the inker 6, the same number of driven gears 9 as the plate cylinder 3 are supported by the frame, and each driven gear 9 is connected to each inking device 7 via a gear not shown. These driven gears 9 are arranged corresponding to the respective driving gears 5 so that the driven gears 9 can mesh with the driving gear 5 when the inker 6 is mounted on the printer main body 1.

The inker 6 is installed on a rotatable roller 17 so as to be able to move in the left-right direction in the figure. The inker 6 is moved in the perspective direction with respect to the printing press main body 1 by an incar moving device (not shown) using an actuator or input. It is designed to be attached and detached. A manual or actuator-type fixing device (not shown) is provided between the inker 6 and the printing press main body 1 to maintain the mounted state of the inker 6.

 The operation of the above-described printing press will be described.

Now, it is assumed that the inker 6 has detached from the printing press main body 1. First, the inker 6 is advanced to a position near the printing press main body 1 by human power or the force of the inker moving device, and temporarily stopped.
Next, the operator visually adjusts the tooth ridges and valleys for phase adjustment of the driving gear 5 and the driven gear 9, and thereafter the inker 6 is advanced and stopped until the two gears 5, 9 mesh. In this state, the fixing device is moved manually or by an actuator to
Is fixed to the printer body 1.

When printing is performed, a motor (not shown) of the printing press main body 1 is operated to rotate the blanket cylinder 2, each plate cylinder 3, and each drive gear 5. Along with this, each drive gear 5 rotates a corresponding driven gear 9, whereby an ink roller 8 of each inking unit 7 rotates, and a corresponding plate cylinder 3 is rotated from each ink roller 8.
The ink adheres to the plate surface and printing is performed on the paper from the blanket cylinder 2.

When the inker 6 is detached from the printing press main body 1, the fixing of the both is released, and then the inker 6 is moved to a predetermined retreat position.

<Problems to be Solved by the Invention> In the conventional incar moving printing press, when the inker 6 is mounted on the printing press main body 1, the phases of the driving gear 5 and the driven gear 9 are visually matched with the tooth ridges and valleys. I have to
Workability is extremely poor. Due to the visual work, in some cases, the meshing is poor and the gears 5 and 9 may be damaged.

In addition, since the periphery of both gears 5 and 9 needs to be opened for visual observation, an oil shower system cannot be adopted for refueling.

Further, since the human operation of visual observation is involved, the mounting of the inker 6 to the printing press main body 1 cannot be automated.

A first object of the present invention is to provide an inker moving type printing press capable of automatically meshing a driving gear and a driven gear without visually matching teeth and valleys.

A second object of the present invention is to provide an inker movable printing press capable of automating a series of operations for mounting an inker.

<Means for Solving the Problems> An inker moving printing press according to a first aspect of the invention includes a printing press main body having a driving gear, and a driven gear meshed with the driving gear, and is attached to and detached from the printing press main body. In the movable printing press having a free movable inker, one of the driving gear and the driven gear is provided so as to be movable in the axial direction, and the other fixed gear provided to be fixed in the axial position. A gear clutch device for moving the movable gear between a clutch engaged position where the fixed gear is normally meshed with a fixed gear and a clutch disengaged position where the movable gear is completely disengaged, and a clutch engaged position from the clutch disengaged position. A gear clutch device that outputs a clutch engagement command to move to a gear clutch device, a detector that detects engagement between the moving gear and the fixed gear, and a clutch engagement command based on the clutch engagement command. Operating the motor to focus detection point is rotated at a lower speed than when printing the driving gear, after engagement detection motor controller to stop the motor, characterized by comprising the city.

According to a second aspect of the present invention, there is provided an ink-moving-type printing press including: a printing press main body having a drive gear; and a movable inker having a driven gear meshed with the drive gear and being detachable from the printing press main body. In the mobile printing press, the driving gear and the driven gear have one moving gear provided to be movable in the axial direction and the other fixed gear provided to be fixed in the axial position, and the moving gear is controlled by a command. ,
A gear clutch device that moves between a clutch engagement position where the fixed gear is normally engaged and a clutch disengaged position that does not engage at all, and a forward position where the driven gear and the drive gear can mesh with each other according to the command of the inker. An incar moving device that moves between a retreat position and a device that outputs an incar advance command to the incar moving device; and a clutch that detects that the inker is at the forward position and outputs a clutch engagement command to a gear clutch device. An engagement commanding device, a detector for detecting engagement between the moving gear and the fixed gear, and, based on a clutch engagement command, operating a motor until the engagement of the detector is detected to drive the drive gear at a lower speed than during printing. A motor control device that rotates the motor and stops the motor after the engagement is detected.

<Operation> The operation of the first invention is as follows.

When a clutch engagement command is given to the gear clutch device, the moving gear starts to move from the clutch disengaged position to the clutch engaged position. At this time, if the tooth ridge and the tooth valley are luckily aligned between the moving gear and the fixed gear, after the movement starts, the two gears start to mesh with a certain time delay due to the operation of the mechanical system, and reach the clutch engagement position. The meshing is completed. But this is rare.

In the first aspect, when the moving gear starts to move away from the clutch disengaged position, the motor control device operates the motor to rotate the driving gear at low speed. Due to this low-speed rotation, there is an opportunity that the tooth ridge and the tooth valley match, and the phase automatically matches so that the moving gear automatically starts to mesh with the fixed gear. After that, the rotation of the motor is unnecessary, and the motor control device stops the motor by the output of the detector.

Therefore, in the first invention, if the moving gear is in the clutch disengaged position, and the inker is advanced to a position where the driving gear and the driven gear can mesh with each other by any mechanical force or human power, the rear gear can be rearwardly moved. Only gives a clutch engagement command, and both gears automatically mesh. Therefore, there is no need to visually match the tooth ridges and valleys.

 Next, the operation of the second invention will be described.

When an incar advance command is given to the incar moving device, the incar starts to move from the retreat position to the forward position. When the inker reaches the forward position, the driven gear can mesh with the drive gear. At this time, when the clutch engagement command device gives the clutch engagement command to the gear clutch device, the driven gear and the drive gear automatically mesh with the same operation as in the first invention.

Therefore, in the second invention, as long as the moving gear has returned to the clutch disengaged position, a series of inker mounting operations such as advancement of the inker and meshing of the gears are automatically performed only by giving an inward advance command.

<Embodiment> Hereinafter, an embodiment of an inker moving type printing press will be described with reference to Figs. 1 to 18.

1 and 18 are circuit diagrams of the control system, which will be described later together with the flowcharts of FIGS. 2 and 3, and the mechanism will be described first.

In FIG. 4, a printing press 10 is a satellite type offset printing press, and includes a paper feeding device 12 and a paper discharging device 14 in addition to a printing press main body 11 and a movable type inker 13. Paper feeder
The detailed description of the paper discharge device 12 and the paper discharge device 14 is omitted because they are not directly related to the present invention.

The inker 13 is supported on rollers 17 which are rotatably arranged side by side on a table 16 of a printing press body 11 fixed on a bed 15 so as to be movable in the left-right direction in FIG. The main body 11 can be moved toward and away from the main body 11 in the near and far directions.

First, the structure of the printing press main body 11 will be described. Printer body 11
Has a pair of left and right frames 18, a collective blanket cylinder 20 is supported between the frames 18, and three plate cylinders 21 and one collective plate cylinder 22 that are in contact with the outer peripheral surface of the collective blanket cylinder 20 are connected to the frame 18. It is pivoted between. A printing plate is mounted on the peripheral surface of each plate cylinder 21. A blanket cylinder 23 and an impression cylinder 24 are sequentially in contact with the collective plate cylinder 22, and these cylinders 23 and 24 are also pivotally supported between the frames 18. In the printing press 10, the ink on the collective blanket cylinder 20 is adhered to the collective plate cylinder 22, the ink is temporarily transferred from the plate surface to the blanket cylinder 23, and printing is performed on paper.

A gear is fixed to one end in the axial direction of each of the cylinders 20, 21, 22, 23, and 24 of the printing press body 11, and the gears are in mesh with each other so as to be able to rotate synchronously. Each gear is a frame
18 Stored inside a gear case mounted outside. As described above, in the printing press of the present embodiment, the gears of each cylinder are put out of the frame 18, sealed with a gear case, the gears are cut off from dirt and dust, and the lubrication of the gears is also performed by absorbing oil absorbed from the oil tank into the gear case. The oil shower system that flows down from above is adopted.

In addition, a motor 26 is installed in the printing press body 11, and
It is connected to a pulley 28 via a belt 27. A gear 29 integral with the pulley 28 meshes with a gear 30 of the same diameter fixed to one end of the impression cylinder 24, and is thus connected to the gears of the other cylinders 20, 21, 22, 23. Then, each gear rotates by the drive of the motor 26, and thus each body rotates. However, the motor 26 is a high-speed drive motor for printing. In this embodiment, a clutch (not shown) is provided so that a low-speed slow-moving motor (not shown) can be used instead of the motor 26 when the inker is mounted.
Are coupled through. A gear 32 integral with the sprocket 31 meshes with a gear 30 of the impression cylinder 24. The gear 32 transmits a driving force to the inker 13 via a gear train 33.
Connected to the drive gears. The sprocket 31
Is connected to a chain 35, and a pawl (not shown) attached to the chain 35 adds the printed paper and conveys the paper to the paper discharge device 14.

The drive gear 34 is one component of the gear clutch device,
It is supported so that it can move in the axial direction.
It will be described later with reference to FIG. Therefore, in this embodiment, the driving gear 34 corresponds to the moving gear.

Next, the structure of the inker 13 will be described. In FIG.
The inker 13 has three inking devices 41, and each of the inking devices 41 has a roller group that is supported between a pair of left and right frames 40. An ink fountain 42 for supplying ink is provided at the head of the roller group of each inking unit 41. The last ink roller 43 of the roller group is provided as a set of four ink rollers 43 of each plate cylinder 21 of the printing press body 11. It is arranged so that it can face.

Gears are fixed to one end of each ink roller of each ink device 41 in the axial direction, as shown in FIG. 5, which shows the structure viewed from the back of FIG. 4, and the gears are in mesh with each other. In the gear case outside the frame 40.

In FIG. 5, the printing machine main body 11 is located below the inker 13.
One driven gear 44 is provided so as to be able to mesh with the driving gear 34 of the second embodiment. The driven gear 44 is supported in a fixed position in the axial direction, and a gear train 45, three clutches 46 and three sets of gears are attached to a gear 47 integral with the ink roller before the final ink roller 43 of each inking unit 41. They are connected via a column 45a. Therefore, in this embodiment, the driven gear 44 corresponds to the fixed gear.
The clutch 46 is provided so as to prevent the driving of the corresponding ink roller 43 in order to stop the supply of the unnecessary color ink when only one or two of the three inks are used at the time of printing. I have.

Next, a drive connection between the drive gear 34 on the printing press main body 11 and the driven gear 44 on the inker 13 will be described with reference to FIGS.

The drive gear 34 and the driven gear 44 are connected and separated from the printing press 11
Is performed in association with the separation of the Inca 13 from Inca
The movement of 13 is performed by a hydraulic cylinder 51 for moving the ink, which is provided between the printing press main body 11 and the ink. FIG. 6 and its V schematically showing the frames 18, 40 of the printing press 10.
As shown in FIG. 7 showing details viewed in the direction of arrows II-VII, the hydraulic cylinder 51 for moving the inker is mounted via brackets 52, 53 from the inner surface of the frame 18 of the printing press main body 11 to the inner surface of the table 16, The distal end of the piston rod 54 is connected to the frame 40 of the inker 13 via the connecting plate 55. Therefore, by the operation of the hydraulic cylinder 51 for moving the inker, the inker 13 is moved on the rollers 17 with respect to the printing press main body 11, and is coupled or separated from the printing press main body 11. Sixth
In the figure, the inker 13 indicated by a solid line indicates the one connected to the printing press main body 11, and the inker 13 indicated by the two-dot chain line indicates the
11 is shown in a stand-by state, separated from it. Note that the hydraulic cylinders 51 for moving the inker are provided on both left and right sides, respectively.

The connection state between the inker 13 and the printing press main body 11 is detected by a limit switch 56 (FIG. 10) provided on the inner surface of the frame 18, and in response to this detection, a fixing device 57 ( (Figs. 8 and 9)
Is fixed to the printing press body 11. These mechanisms are shown in FIGS.

The tip of the inker frame 40 (the end on the printing press body 11 side)
A coupling plate 58 which has a function as a dog for turning on and off the limit switch 56 and forms a part of the fixing device 57 is mounted on the inner surface so as to protrude toward the printing press main body 11. An inclined surface 59 is formed as a dog at the upper end of the coupling plate 58. Printer frame
The limit switch 56 mounted on the inner surface of the lever 18 has a lever 60 facing the entry end of the coupling plate 58. Therefore, the Inker 13 is moved and the printing press
When it is connected to 11, the slope 59 of the connecting plate 58
Push up 60 and limit switch 56 turns ON (or OF
In step F), it is detected that the inker 13 is connected to the printing press main body 11.

At the tip of the coupling plate 58, a linear groove 61 and a tapered hole 62 connected to the groove 61 are formed. When the inker 13 is connected to the printing press main body 11, the connecting plate 58 extends along the inner surface of the frame 18 of the printing press main body 11, and the inner surface of the frame 18 extends across the connecting plate 58 in this state. A hydraulic cylinder 66 for fixing the inker is mounted on the cylinder mounting base 65 which is mounted via a bolt 63 and a spacer 64 so as to be concentric with the tapered hole 62 in the above-described state. A hole 67 that is concentric with the tapered hole 62 is provided.
A cylindrical holder 69 which holds 68 is fitted. The tip of the rod 70 of the hydraulic cylinder 66 for fixing the anchor is slidably fitted to the bush 68, and in the middle of the rod 70,
A tapered fixing piece 71 that can be fitted into the tapered hole 62 is attached. Therefore, when the inker 13 and the printing press main body 11 are in a connected state, the hydraulic cylinder 66
Is extended and the fixing piece 71 is fitted into the tapered hole 62 of the connecting plate 58, so that the
Fixed to It should be noted that a total of four fixing devices 57 are provided at two upper and lower positions on both left and right sides of the joining portion of the printing press main body frame 18 and the inker frame 40.

The engagement and separation of the drive gear 34 and the driven gear 44 accompanying the connection and separation of the inker 13 with the printing press main body 11 are performed by a gear clutch device 72 shown in FIGS.

As described above, and as shown in FIG. 11 showing a part of the gear train, the driven gear 44 is supported on the shaft 73 outside the incar frame 40 so as to be rotatable and immovable in the axial direction. On the other hand, as shown in FIG. 12, a gear shaft 75 on which the drive gear 34 is integrally mounted via a key 74 is provided with a bearing member 76 and a frame 18 mounted on the printing press main body frame 18.
Bearing member mounted on bracket 77 mounted on the outer surface
It is supported by 78 so as to be rotatable and movable in the axial direction. A cylindrical follower member 80 having flanges 79 at both ends is attached to an end of the gear shaft 75 inside the frame 18. A bracket 81 is attached to the inner surface of the frame 18 in the vicinity of the gear shaft 75, and a corner portion of a bell crank-shaped lever 82 is pivotally supported by this bracket 81 by a pin shaft 83. Roller at one end of lever 82
84 is attached, and at this time, the flange 84 of the follower member 80 is
It is engaged between 79. On the other hand, a cylinder base 85 is provided on the inner surface of the frame 18, and a rear portion of the clutch hydraulic cylinder 86 is pivotally mounted on the cylinder base 85. Hydraulic cylinder
A connecting member 88 is attached to the distal end of the rod 87 of the connecting member 86. The connecting member 88 and the other end of the lever 82 are rotatably connected to each other by a pin 89.

Accordingly, the operation of the clutch hydraulic cylinder 86 causes the lever 82 to swing, and the gear shaft 75 moves in the axial direction via the rollers 84 and the flange portion 79, and the driven gear 44 of the drive gear 34
Is performed. In FIGS. 11 and 12, the drive gear 34 in the detached state is indicated by a two-dot chain line. As shown in FIG. 11, the driving gear 34 is driven gear 44
Is kept separated from the adjacent gear 90 on the drive source side even if it is in a separated state.

The portion where the driven gear 44 and the drive gear 34 start meshing is subjected to a so-called charring process for sharpening the side ends of the teeth, so that the meshing of the two can be performed smoothly. However, even if it has been subjected to the charring process, if the tooth ridges hit each other, they cannot mesh with each other. Therefore, a phase matching mechanism for matching the tooth ridge of one gear with the tooth valley of the other gear is provided. The phase matching mechanism includes a detection device for detecting a meshing state between the driven gear 44 and the driving gear 34, and a control system.

As shown in FIG. 12, FIG. 13, and FIG. 14 showing the XIV view and FIG. 15 showing the XV-XV view, a connecting member 88 at the tip of the rod 87 of the clutch hydraulic cylinder 86 is shown. Mounting plate
An element 92 to be measured is attached via 91. On the other hand, a support plate 93 is attached to an end surface of the bracket 81, and three proximity switches 94, 95, and 96 for detecting the device under test 92 are supported on the support plate 93. As described above, the driven gear 44 and the drive gear 34 mesh or separate according to the extension and contraction of the rod 87 due to the operation of the clutch hydraulic cylinder 86. By the displacement of 92, the meshing state of the gears 34, 44 can be known. Under such circumstances, the proximity switch 94 is driven by the driven gear.
The proximity switch 95 detects the measured element 92 when the driving gear 34 is in the disengaged state with respect to 44, and the proximity switch 95 detects the measured element 92 when the driving gear 34 is slightly meshed with the driven gear 44. Reference numeral 96 is designed to detect the measured element 92 when the drive gear 34 completely meshes with the driven gear 44. Hereinafter, the switches 94, 95, and 96 are referred to as a first proximity switch 94, a second proximity switch 95, and a third proximity switch 96, respectively.

The detection signals from the first, second, and third proximity switches 94, 95, and 96 are input to a control system, and the operation of the motor, the cylinder, and the like is controlled based on these signals. The printing press has a control panel as a control system.
The entire coupling / separation operation between the printer 13 and the printer main body 11 can be controlled.

As shown in FIG. 16, the panel 97 of the control panel has a button switch 98 for instructing forward movement of the inker movement, a button switch 99 for backward movement, and a mode switch for interlocking, stopping, and independent mode selection of the anchoring operation. Mode switch 10 for interlocking, stopping, and independent mode selection of 100 and gear clutch operation
1 is provided. In addition, the clutch wear confirmation lamp 102
And a clutch disengagement confirmation lamp 103 are provided on the panel 97.

In addition, a buzzer is provided in the printing press main body 11 or the inker 13 to notify the worker of the incar movement. Further, in addition to the above-described limit switch 56 for detecting the forward limit of the inker movement, a limit switch is provided on the table 16 of the printing press main body for detecting the backward limit.

Next, a control system according to an embodiment will be described with reference to FIGS. 1, 2, 3, and 17. FIG. As described above, the control system circuit is as shown in FIG. FIG. 2 is a flowchart of mounting the inker in the interlocking mode, FIG. 3 is a flowchart of releasing the inker, and FIG. 17 is a hydraulic circuit diagram of the hydraulic cylinder 86 for the clutch.

In FIG. 1, a voltage H corresponding to logic "1" is applied to a line 104.
I is supplied with power, and the button switch 98 for the forward command of the Inca movement, the limit switch 56 of the Inca advance limit, the common contact of the mode switch 100 fixed to the Inca, the common contact of the mode switch 101 for the clutch, and the backward command for the Inca movement The button switch 99 and the limit switch 105 for the limit of the backward movement of the carriage are connected to the line 104, respectively.

The output of the forward command button switch 98 is connected to the set terminal S of the flip-flop circuit FF1, its Q terminal output is connected to the input of the solenoid drive circuit 106, and its drive output is further connected to the buzzer 107 and the It is connected to a solenoid shortening solenoid 109 of the solenoid valve of the cylinder 51. Therefore, once the button switch 98 is turned on and a forward command is issued, the hydraulic cylinder 5 is reset until FF1 is reset.
Hydraulic pressure in the rod shortening direction is applied to 1, and the inker 13 moves forward. At the same time, the buzzer 107 sounds to warn of the inca movement. F
The output of the solenoid drive 110 is connected to the reset terminal R of F1.

The output of the limit switch 56 for the inker advance limit is connected to the input of the timer T1, and this timer output and the contact of the interlock mode of the mode switch 100 fixed to the inker are connected to the AND circuit A.
Connected to the input of ND1. The output of AND1 is an inca fixed command, which is connected to the input of the solenoid drive circuit 110, the drive output of which is connected to the solenoid 111 for rod extension of the solenoid valve of the hydraulic cylinder 66 for fixing the inca, and the FF1 is reset as described above. Connected to terminal R. Timer T1
Is set to 3 seconds, for example. As described later, in order to automate the retraction of the Inca, the contact of the interlock mode
Connected to one input of AND7. On the other hand, the single mode contact of the mode switch 100 also outputs the
It is connected to the output of ND1 in the form of wired OR. The stop mode contacts are not connected anywhere.

Therefore, in the interlocking mode, when the button switch 98 is turned on and the inker 13 is moved forward, the limit switch 56 is turned on at the forward limit, and after 3 seconds, the hydraulic cylinder 66 is turned on.
The hydraulic pressure in the rod extension direction is applied, and the fixing device 57
13 is started to be fixed, and at the same time, the hydraulic cylinder 51 for moving the carriage stops. The timer T1 is used to consider the time required from when the limit switch 56 is turned on to when the inker 13 reaches a predetermined coupling position. In the single mode, since the flip-flop circuit FF1 remains reset, the inker 13 does not move, and the fixing device 57 operates alone. In the case of the stop mode, the fixing device 57 does not operate,
Only the button switch 98 allows the inker 13 to move forward.

The output of the solenoid drive circuit 110 is connected to the input of the timer T2, and the output of this timer and the contact of the interlocking mode of the clutch mode switch 101 are connected to the input of the AND circuit AND2. The output of AND2 is a clutch engagement command, which is connected to an input of a solenoid drive circuit 112, and this drive output is connected to a solenoid 113 for shortening the rod of the solenoid valve of the hydraulic cylinder 86 for clutch. The timer T2 is set to, for example, 3 seconds. As will be described later, in order to automate the release of the fixed anchor, a contact in the interlock mode is connected to one input of the AND circuit AND6. On the other hand, the contact of the mode switch 101 in the single mode also outputs the clutch engagement command, and is connected to the output of AND2 and the wired OR. The stop mode contacts are not connected anywhere.

Accordingly, in the case of the interlocking mode, when the rod of the hydraulic cylinder 66 of the anchor fixing device 57 is extended and the anchor 13 starts to be fixed, three seconds later, hydraulic pressure in the rod shortening direction is applied to the hydraulic cylinder 86, and the drive gear 34 is moved. It starts to move in the clutch engagement direction that meshes with the driven gear 44. Here, the timer T2 is used as a kind of a device for confirming the fixing between the inker 13 and the printing press main body 1, and in this embodiment, the hydraulic cylinder 66 is used.
It has been confirmed that the inker 13 is always completely fixed to the printing press main body 11 within 3 seconds after the start of the extension. Of course, it is also possible to confirm that the anchor is fixed by using a detector such as a limit switch instead of the timer T2. In the case of the single mode, the rod 87 of the hydraulic cylinder 86 is shortened and the drive gear 34 is moved in the clutch engagement direction, regardless of whether or not the anchor is fixed.
It does not move in the stop mode.

Further, a first proximity switch 94, a second proximity switch 95, and a third proximity switch 94 for detecting a meshing state between the driving gear 34 and the driven gear 44 are provided.
Each output of the proximity switch 96 is detected by a detection circuit 114, 116, 12 respectively.
Connected to 0 input.

The first proximity switch 94 is turned on only when the drive gear 34 is at the clutch disengaged position, and the detection circuit 114 outputs this as logic "1". The output of the detection circuit 114 is connected to the clutch disengagement confirmation lamp 103, the inverter 115, and the reset terminal R of the flip-flop FF2.
Is connected to one input of an AND circuit AND3.
The other input of AND3 is connected to the output of solenoid drive circuit 112, and the output of AND3 is connected to the input of timer T3. Therefore, the timer T3 operates when the clutch engagement command is issued and the output of the detection circuit 114 changes from the clutch disengagement position detection ("1") to non-detection ("0"). The output of the timer T3 is connected to one input of an AND circuit AND4 and one input of a three-input AND circuit AND5. The timer T3 is set to, for example, 3 seconds.

The second proximity switch 95 is turned on only when the driving gear 34 is at an intermediate position where the driving gear 34 slightly meshes with the moving gear 44.
6 outputs this as logic "1". The output of the detection circuit 116 is connected to the other input of the AND circuit AND4, and the output of this AND4 is connected to the set terminal S of the flip-flop circuit FF2 and the inverter 117. The Q terminal output of this FF2 is connected to the input of a solenoid drive circuit 118, and the drive output is connected to the solenoid 119 of the pressurizing valve of the clutch hydraulic cylinder 86. The output of the inverter 117 is connected to the input of a three-input AND circuit AND5. As shown in FIG. 17, the hydraulic circuit of the clutch hydraulic cylinder 86 includes a solenoid valve 131 and a pressurizing valve 132. The solenoid valve 131 includes a clutch mounting solenoid 113 and a clutch disengaging solenoid 125.
The pressure valve 132 temporarily increases the pressure from a certain value by the solenoid 119 to increase the force of the cylinder.

The third proximity switch 96 is turned on only when the drive gear 34 is at the clutch engagement position, and the detection circuit 120 outputs this as logic "1". The output of the detection circuit 120 is connected to the clutch engagement confirmation lamp 102 and the inverter 121, and the output of the inverter 121 is connected to the input of the three-input AND circuit AND5. The output of AND5 is connected to the slow motor drive circuit 12.
2, and its drive output is connected to the slow motor 123.

The operation of the first to third proximity switches 94 to 96 will be described.

When the drive gear 34 is at the clutch disengaged position, the first proximity switch 94 is turned on and the clutch disengagement confirmation lamp 103 is lit. When a clutch engagement command is given to the solenoid drive circuit 112 in this state, power is supplied to the solenoid 113, and the rod 87 of the clutch hydraulic cylinder 86 is shortened to reduce the drive gear 34.
Starts moving away from the clutch disengaged position in the clutch engagement direction, the first proximity switch 94 is turned off, and the lamp 103 is turned off. At the same time, the timer T3 operates.

When the drive gear 34 moves in the clutch engagement direction, if the drive gear 34 happens to be in phase with the driven gear 44, the two gears 34, 44 mesh with each other, the drive gear 34 directly reaches the clutch engagement position, and the clutch engagement confirmation lamp 102 Lights up. Considering that the moving time required in this case is within 3 seconds when viewed from the speed of the hydraulic cylinder 86, the timer T3 was set to 3 seconds.

Normally, the phases do not match, and the driving gear 34 cannot move while being in contact with the driven gear 44 before the intermediate position, so that 3 seconds elapse while both the second and third proximity switches 95 and 96 are off. When three seconds elapse, a command is issued from the AND circuit AND5 to the slow motor drive circuit 122 to operate the slow motor 123 and rotate the drive gear 34 at a low speed. When the phases of the drive gear 34 and the driven gear 44 match due to this rotation, the drive gear 34
Moves again to reach the clutch engagement position while meshing with the driven gear 44. As a result, the third proximity switch 96 is turned on, the slow motor 123 stops, and the lamp 102 is turned on. In this embodiment, the hydraulic cylinder 86 is operated at low pressure and low speed to prevent gear damage until the gears 34 and 44 mesh with each other.
After the engagement, the hydraulic cylinder 86 is operated at a high pressure and a high speed in order to reduce the moving time and surely maintain the engaged state of the clutch. Therefore, when the second proximity switch 95 detects that the drive gear 34 has reached the intermediate position, the AND circuit AN
The output of D4 sets the flip-flop circuit FF2, and the solenoid drive circuit 118 activates the pressurizing solenoid 119.

When the inker 13 is fully automatically mounted on the printing press main body 11, the two mode switches 100 and 101 are both set to the interlock mode, and the forward command button switch 98 may be pressed. The operation of the control system in this case is as shown in the flowchart of FIG.

Also, if the mode switch for clutch 102 is set to the interlocking mode, and the mode switch for anchor fixing 100 is switched from the stop mode to the single mode in a state where the anchor 13 has been moved to the forward limit by an arbitrary method, the mode from the state where the anchor is fixed is reset. The operation up to the application of the clutch is automatically performed.

Further, if the two mode switches 100 and 101 are both set to the stop mode, and the inker 13 is moved to the forward limit by some method and the inker 13 is fixed, the clutch mode switch 101 is switched to the single mode. The wearing operation is performed automatically.

 Next, detachment of the inker 13 will be described.

In FIG. 1, the output of the button switch 99 for retreating the incar movement is connected to the set terminal S of the flip-flop circuit FF3, and its Q output terminal is connected to the respective inputs of the AND circuits AND6 and AND8. To the reset terminal R of FF3, the output of the limit switch 105 for the limit of the backward movement of the carriage is connected.

As described above, the other input of the AND circuit AND6 is connected to the contact of the interlocking mode of the clutch mode switch 101, and the output of the AND6 is connected to the input of the solenoid drive circuit 124 as a clutch disengagement command. The output of the circuit 124 is connected to the solenoid 125 for extending the rod of the solenoid valve of the clutch hydraulic cylinder 86, and is also connected to the timer T4.

The timer T4 is set to, for example, 3 seconds, and its output is connected to the input of the AND circuit AND7. The other input of AND7 is connected to the mode switch 100 for fixing the
The interlocking mode contacts are connected, and these AND outputs are used as an anchor release command for the solenoid drive circuit 126.
Connected to the input. The output of the circuit 126 is connected to a solenoid 127 for shortening the rod of the solenoid valve of the hydraulic cylinder 66 for fixing the inlet and to a timer T5.

The timer T5 is set to, for example, 3 seconds, and its output is connected to the input of the AND circuit AND8. The other input of this AND8 is connected to the Q terminal output of the flip-flop FF3 as described above, and these AND outputs are connected to the input of the solenoid drive circuit 128 as an inca retreat command. The output of this circuit 128 is the buzzer 129 and the solenoid for extending the rod of the solenoid valve of the hydraulic cylinder 51 for moving the inker.
Connected to 130. To the reset terminal R of FF3, the output of the limit switch 105 for the limit of the backward movement of the carriage is connected.

In order to release the inker 13 from the printing press main body 11, the two mode switches 100 and 101 for fixing the inker and the clutch may be set to the interlocking mode, and the retreat command button switch 99 may be pressed. As a result, as shown in FIG. 3, the clutch hydraulic cylinder 86 extends at high pressure and high speed,
Begins to move toward the clutch disengagement position. Three seconds after the start of the movement, the hydraulic cylinder 66 for fixing the inker is shortened, and the fixing between the printer main body 11 and the inker 13 is released. Three seconds after the start of the fixing release, the hydraulic cylinder 51
Extend and the Inca 13 begins to recede. When the inker 13 returns to the retreat limit, the flip-flop circuit FF3 is reset, and the operation stops. During the movement of the carriage, the buzzer 129 sounds and an alarm is issued. Also, after starting clutch release, ramp 10
When 2 is turned off and the drive gear 34 returns to the clutch disengaged position, the lamp 103 is turned on and the flip-flop FF2 is reset at the same time, and the pressurization of the clutch hydraulic pressure is released.

Here, the timers T4 and T5 are used as a kind of a detector for releasing the clutch and releasing the lock of the inker. In this embodiment, it is confirmed that the driving gear 34 returns to the clutch releasing position within three seconds after the start of the movement. , And release of Inca fixation after operation 3
Confirmed to complete within seconds.

In the above embodiment, the drive gear 34 is moved between the clutch disengaged position and the engaged position.
The gear 44 can be moved axially between the clutch disengaged position and the engaged position, and the drive gear 34 is rotatable but has exactly the same clutch action even if the position is fixed in the axial direction.

In addition, the drive gear 34 is rotated at a low speed by the dedicated slow motor 123 for phase adjustment when the clutch is engaged.However, instead of the motor 123, the rotation of the printing motor 26 is controlled, and the The same operation is achieved even if the phase is adjusted by rotating at a low speed.

Next, a control system according to another embodiment will be described with reference to FIG. The control system shown in FIG. 18 is different from the control system shown in FIG. 1 in that the inker movement is not fully automatic, and the inker 13 is advanced only while the button switch 98 is pressed, and only while the button switch 99 is pressed. The only difference is that the Inca 13 is retracted, and the other is the same. Such a control system may be considered preferable for safety. Therefore the 18th
In the figure, an AND circuit AND9 and an inverter 133 are used instead of the flip-flop circuit FF1 of FIG. 1, the output of the forward command button switch 98 is connected to one input of AND9, and the limit switch 56 for the forward limit of the inker. Is connected to the other input of the same AND 9 via the inverter 133, and the output of the AND 9 is given to the solenoid drive circuit 106 for the forward movement of the INCA as the forward instruction of the INCA. Similarly, in FIG. 18, an AND circuit AND10 and an inverter 134 are used in place of the flip-flop circuit FF3 of FIG. 1, and the output of the reverse command button switch 99 is directly input to the AND circuit AND6 and a new AND1
0 is connected to the other input of AND10, and the output of the limit switch 105 of the limiter for ingress retraction is connected to the other input of this AND10 via the inverter 134, and the output of this AND10 is connected to the input of AND8 as an inca retraction command. ing. Other circuit configurations are the same as those in FIG. 1, and the operation flow is also shown in FIGS.
As shown in the figure.

<Effects of the Invention> According to the first invention, in a state where the moving gear is in the clutch disengaged position, the inker is advanced to a position where the driving gear and the driven gear can mesh with each other by any mechanical force or human power. After that, both gears are automatically engaged only by giving a clutch engagement command. Therefore, there is no need to visually match the tooth ridges and valleys.

According to the second aspect of the invention, as long as the movable gear has returned to the clutch disengaged position, a series of inker mounting operations such as advancement of the inker and meshing of the gears are automatically performed only by giving an inward advance command. .

[Brief description of the drawings]

1 to 18 relate to an embodiment of the present invention, FIG. 1 is a circuit diagram of a control system of one embodiment, FIG. 2 is a flowchart for mounting an inker, FIG. 3 is a flowchart for detaching the inker, FIG. Is an overall view of the printing press, FIG. 5 is a view showing the inker structure viewed from the back of FIG. 4, FIG. 6 is a view showing the inker moving mechanism, and FIG. 7 is a detailed view taken along the line VII-VII in FIG. FIG. 8, FIG. 8 is a cross-sectional view showing the inker fixing mechanism, FIG. 9 is a side view of FIG. 8, FIG. 10 is a plan view of FIG. 8, FIG. Fig. 12 is a sectional view of the gear clutch, and Fig. 13
12 is a sectional view taken along the line XIII-XIII in FIG. 12, FIG. 14 is a view taken in the direction of the arrow XIV in FIG. 12, and FIG.
FIG. 16 is a front view of the control panel, and FIG.
FIG. 17 is a hydraulic system diagram of a clutch hydraulic cylinder, and FIG. 18 is a circuit diagram of a control system of another embodiment. FIG. 19 is a diagram showing a conventional printing press. In the drawing, 11 is a printing press main body, 13 is an inker, 34 is a driving gear (moving gear), 44 is a driven gear (fixed gear), 51 is a hydraulic cylinder for moving the inker, 56 is a limit switch, and 66 is a hydraulic pressure for fixing the inker. Cylinder, 86 is a hydraulic cylinder for clutch,
94, 95, 96 are proximity switches, and 123 is a slow-moving motor.

Claims (2)

(57) [Claims] 1. An ink-moving printing press, comprising: a printing press main body having a driving gear; and a movable inker having a driven gear meshed with the driving gear and detachable from the printing press main body. One of a driving gear and a driven gear is provided so as to be movable in the axial direction, and the other is a fixed gear provided in a fixed position in the axial direction. The moving gear is normally meshed with the fixed gear according to a command. A gear clutch device that moves between a mating clutch engagement position and a clutch disengagement position that does not engage at all; a device that outputs a clutch engagement command to move the moving gear from the clutch disengagement position to the clutch engagement position to the gear clutch device; A detector for detecting meshing between the moving gear and the fixed gear; and, based on a clutch engagement command, operating a motor until the detection of meshing of the detector to drive the drive gear from the time of printing. A motor control device that rotates the motor at a low speed and stops the motor after the engagement is detected. 2. An inker moving printing press comprising: a printing press main body having a driving gear; and a movable inker having a driven gear meshed with the driving gear and being detachable from the printing press main body. One of a driving gear and a driven gear is provided so as to be movable in the axial direction, and the other is a fixed gear provided in a fixed position in the axial direction. The moving gear is normally meshed with the fixed gear according to a command. A gear clutch device that moves between a mating clutch engagement position and a completely disengaged clutch disengagement position, and a commanded command of the inker between a forward position where the driven gear and the drive gear can mesh and a retracted position where the driven gear and the drive gear are not meshed. An inker moving device to be moved; a device for outputting an incar advance command to the incar moving device; and detecting that the inker is at the forward position, and outputting a clutch engagement command to the gear clutch device. A clutch engagement command device, a detector for detecting meshing between the moving gear and the fixed gear, and a motor operated until the detection of meshing of the detector based on the clutch engagement command to drive the drive gear more than when printing. A motor control device that rotates at a low speed and stops the motor after the engagement is detected.