JPH0526364U - Printing machine water supply - Google Patents

Abstract

(57) [Summary] [Purpose] Make it easy to remove the water source roller. A motor drive shaft fixed to an outer surface of a frame penetrates the frame and has a motor gear 4 attached to its tip. The motor gear 4 and the gear 6 of the water source roller 10 mesh with each other, and the gear 6 and the gear 15 of the metering roller 16 mesh with each other. Reference numeral 20 denotes an air cylinder, which swings the lever 23 to separate the metering roller 16 from the swing roller 17 and put it in the released state. The lever 35 separates the metering roller 16 from the water source roller 10 and, at the same time, separates the gear 15 from the gear 6 to bring them into the released state. The motor gear 4 is arranged below the water source roller 10, that is, on the water boat 9 side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water supply device for supplying dampening water to a plate surface on a plate cylinder in a printing machine.

[0002]

[Prior Art]

 In the water supply system of the printing press, the dampening water stored in the water boat is pulled up by the water source roller that rotates in the water boat, and it is transferred while smoothing it among multiple roller groups. Supply to. Then, in order to delicately control the water rising of the water supply roller, there may be a case where the structure is such that the metering roller and the swing roller are forcedly slipped. In this case, in order to obtain slippage, in addition to the main drive source, it usually has its own drive source. FIG. 3 is a schematic side view of a water supply device of a conventional printing machine. In the figure, reference numeral 40 denotes a motor as a rotation input means, which is a drive source unique to the water supply device, and is located on the side of a water source roller 45, which will be described later, and attached to a drive side frame (not shown). The rotation of the motor 40 is transmitted to another pulley 43 via a belt 42 stretched from the motor pulley 41. The pulley 43 is integrated with a transmission gear 44 that meshes with the gear 46 of the water source roller 45, and the rotation of the motor 40 is transmitted to the water source roller 45 via both gears 44 and 46. Further, the gear 46 meshes with the gear 48 of the metering roller 47, and the rotation of the motor 40 is transmitted to the metering roller 47. A part of the peripheral surface of the water source roller 45 is immersed in the dampening water 49a in the water boat 49, and the dampening water 49a in the water boat 49 pulled up by the water source roller 45 becomes the metering roller 47. Further, it is leveled by the swing roller 52 and supplied to the plate cylinder 54 by the swimsuit roller 53.

[0003]

By the way, in such a structure, when removing the water source roller 45, first, an air cylinder (not shown) is operated to move the metering roller 47 from the water source roller 45. Separate it and put it in the released state. Next, the gear 46 of the water source roller 45 is separated from the gear 44 to be in the released state. After that, the water boat 49 is removed, and the water source roller 45 is pulled out in the direction of arrow E and removed. As described above, in the above-described conventional water supply device for a printing press, the pulley 43, which constitutes a drive source for obtaining the slip between the metering roller and the swing roller, is arranged on the side of the water source roller. The space for removing the water source roller is located below the water boat. For this reason, in order to remove the water source roller, it is necessary to remove the peripheral parts including the water boat, which requires additional work time for removal and also complicates the work itself. It was The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a water supply device for a printing press, which allows easy removal work of the water source roller.

[0004]

[Means for Solving the Problems]

 In order to achieve this object, the water supply device for a printing press according to the present invention has a drive-side gear, which is meshed with a gear fixed to a water source roller, disposed on the water boat side.

[0005]

[Action]

 In the present invention, the drive side gear that meshes with the gear fixed to the water source roller is arranged on the water boat side, so that a space for removing the water source roller is formed on the side of the water source roller.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a water supply device for a printing machine according to the present invention, and FIG. 2 is a front view of the same. In these figures, 1 is a motor as a rotation input means for generating a slip between a metering roller 16 and a swinging roller 17, which will be described later, and is attached to the outer surface of the frame 2. The rotation drive shaft 3 of the motor 1 has a motor gear 4 penetrating the frame 2 and fixed at the tip thereof arranged in the frame 2. The motor gear 4 is arranged below the meshing gear 6, that is, on the side of the watercraft 9.

The gear 6 is attached by a bolt 8 to a fixing plate 7 fixed to the shaft portion 10 a of the water source roller 10, and the water source roller 10 rotates integrally with the gear 6. The water source roller 10 is rotatably supported by a holder 11 fixed via a support member 13 attached to the frame 2. The gear 15 meshes with the gear 6 and is integrally fixed to the metering roller 16 by a bolt. The metering roller 16 is rotatably supported by a holder 33 fixed to a support member 34.

Reference numeral 20 is an air cylinder fixed to the frame 2, and a piston rod 21 is pin-connected to one end of an inverted L-shaped lever 23 via a fixing member 22. Reference numeral 21a is a stopper for restricting the extension of the piston rod 21 and is fixed to the frame 2. The lever 23 is swingably supported by a support member 13 having the same swing center as the holder 11, which is the center of rotation of the water source roller 10, as a swing center, and the free end portion at the other end is supported by the lever 23. The eccentric sleeve 25 in which the outer peripheral core and the inner peripheral core are displaced is fitted.

A lever 35 having a grip portion 35 a is fixed to the eccentric sleeve 25. The pin 26 a of the adjusting member 26 is fitted on the inner circumference of the eccentric sleeve 25, and the adjusting member 26 is connected to the lever 23. The other end of the rod 27 of the adjusting member 26 is connected to one end of the swing arm 30 by a pin 28, and by adjusting the amount of advance / retreat of the rod 27, the metering roller 16 with respect to the water source roller 6 is adjusted. Adjusting the contact pressure. The swing arm 30 is swingably supported by a lever 23 around a swing fulcrum 31, and a holder 33, which rotatably supports the metering roller 16 at the other end, is fixed by a bolt 34. ing.

The operation will be described below. First, during the printing operation, the air cylinder 20 is not operating and the piston rod 21 is in an extended state. In this state, the lever 23 is held in the state shown in FIG. The metering roller 16 supported by the moving arm 30 is in contact with the water source roller 6. When the water-based roller 6 is removed after printing is completed, first, the air cylinder 20 is operated to contract the piston rod 21, and the fixing member 22 is pulled in the direction of arrow A. With the movement of the fixing member 22 in the A direction, the lever 23 swings counterclockwise about the support member 13, and the swing arm 30 supported by the lever 23 swings integrally in the counterclockwise direction. The adjusting roller 16 is separated from the oscillating roller 17 and is in the released state.

Next, when the knob 35a is gripped and the lever 35 is rotated in the C direction, the eccentric sleeve 25 fitted to the lever 35 also rotates in the C direction. The rotation of the extens reeve 25 in the C direction causes the metering roller 16 to swing in the direction of arrow B due to the misalignment between the outer peripheral core and the inner peripheral core of the eccentric sleeve 25, causing the metering roller 16 to move to the water source roller. 6 is separated from the gear 6, and the gear 15 of the metering roller is also separated from the gear 6 and is in a disengaged state. In this state, the water source roller 10 is removed from the holder 11 and removed from the side of the water source roller 10, that is, in the direction of arrow D.

[0012]

[Effect of the device]

 As described above, according to the present invention, a water source roller having a part of its peripheral surface is provided inside the water vessel, and a drive gear that meshes with a gear fixed to the water source roller is provided on the water vessel side. Since there is a space for removing the water source roller on the side of the water source roller, it is possible to remove the water source roller without removing other parts, which facilitates installation and removal. , Maintainability is significantly improved. In addition, since the space is created, a work space between the roller units is secured and workability can be improved. In addition, a safety cover can be applied to the space, which has the effect of improving safety.

[Brief description of drawings]

FIG. 1 is a side view of a water supply device of a printing press according to the present invention.

FIG. 2 is a front view of a water supply device for a printing press according to the present invention.

FIG. 3 is a schematic side view of a water supply device of a conventional printing machine.

[Explanation of symbols]

 1 Motor 4 Motor Gear 6 Gear 9 Water Boat 10 Water Source Roller 15 Gear 16 Metering Roller 20 Air Cylinder

Claims (1)

[Scope of utility model registration request] 1. A water source roller having a part of its peripheral surface arranged in a watercraft, a gear fixed to the water source roller, a drive gear meshing with the gear, and a rotation input to the drive gear. A water supply device for a printing press, comprising: a rotation input means for applying the drive gear, wherein the drive gear is arranged on the water boat side.