JPH0439005Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an apparatus for supplying ink to an ink jetting device that sprays ink onto a roller of a printing press.

(Prior art and its problems) The applicant previously proposed applying printing ink by spraying it onto the plate cylinder of a printer slotter that cuts and prints cardboard paper for making boxes (Jitsukai Sho.
58−168424).

However, this ink injection device is a repurposed existing device, and the ink capacity of the ink injection device itself is small, and the operation of the printer slotter must be stopped during ink replenishment. There was a problem where the operating rate decreased.

(Means for Solving the Problems) The present invention discloses a device that automatically supplies ink from a replenishment tank when the amount of ink in the tank of an ink injection device falls below a certain level.

In the present invention, a replenishment tank 2 having an ink discharge port 23 on the lower surface is removably fixed to a tank mounting base 1, and a valve rod 3 for opening and closing the discharge port 23 is provided in the replenishment tank 2 so as to be movable up and down. The upper end of the valve stem extends upward and downward from the replenishment tank 2, and a cylinder device 4 is provided on the tank platform 1 adjacent to the replenishment tank 2, and the piston rod 41 of the cylinder device 4 is rotatable in a horizontal plane. A lever 5 is pivotally supported, and an engaging part 51 is formed at the free end of the lever 5 to removably engage with the upper end of the valve stem 3. A through hole 14 communicating with the discharge port 23 is opened at a corresponding position to open the through hole 1.
4 and the tank 72 of the ink injection device 7 are connected to the conduit 73.
An ink amount detector 74 is provided in the tank 72 of the ink injection device, and the detector 74 is connected to the cylinder device 4.

(Functions and Effects) When the amount of ink in the tank 72 of the ink injection device 7 decreases, the detector 74 issues a signal, the cylinder device 4 operates, and the valve rod 3 is raised to reach the outlet 2 of the replenishment tank 2. open.

The ink in the replenishment tank 2 flows into the tank 72 of the ink injection device 7 via the pipe 73, and the ink in the tank 7
When the inside of the tank 2 is filled with ink, the cylinder device 4 operates to lower the valve stem 3 and open the outlet 2 of the supply tank 2.
Close 3.

The above operation is repeated every time the amount of ink in the tanks 72, 72 of the ink injection device 7 decreases, and ink is always stored in the ink tank 72. Tutar will no longer be shut down.

Also, when changing the ink color, turn the lever 5 on the cylinder device 4 horizontally to disengage it from the valve stem 3, remove the replenishment tank 2 together with the valve stem 3 from the stand, and set it aside. The replenishment tank 2 can be reset, and setup changes can be made quickly.

(Example) Fig. 1 shows the ink supply section of a printer slotter, in which a rail 9 is provided parallel to the ink application rollers 8, 81, 82 arranged in multiple rows, and a tank mounting stand 1 is installed on the rail 9. Support so that it can run.

A plurality of wheels 15, 15 are arranged on the tank platform 1, and the wheels 15, 15 rollably sandwich the rail 9.

The tank platform 1 is connected to a chain 16 extending in an endless manner parallel to the rail 9, and moves back and forth on the rail 9 by the reciprocating rotation of the chain 16.

A support member 6 is provided to protrude downward from the tank platform 1, and an ink injection device 7 is removably fixed onto the support member 6 with an injection port 71 facing the ink application rollers 8, 81, 82.

The ink injection device 7 may be of any injecting means, such as one that injects ink by circular force or one that uses air pressure.

An ink amount detector 74 is provided within the ink tank 72 of the ink injection device 7 .

The ink amount detector 74 of the embodiment has two long and short electrode rods 75 and 76 suspended in the ink tank 72.
This is a known device that issues a signal when the ink level falls below the lower end of the long electrode rod 75 and rises above the lower end of the short electrode rod 76.

A circular recess 11 is formed on the upper surface of the tank platform 1, and a cylindrical replenishment tank 2 is placed in the recess 11.
is removably fixed.

The supply tank 2 has a bottom plate 22 fixed to the bottom surface of a cylindrical body 21 made of synthetic resin with adhesive or the like, and a lid plate 26 fixed to the top surface.
It is removably closed.

The bottom plate 22 has a discharge port 23 on the outer circumferential side, and a screw hole 2 for clamping in the center of the back side of the bottom plate 22.
4 and a positioning hole 25 is provided on the outer circumferential side.

A through hole 14 is formed in the platform 1 at a position corresponding to the discharge port 23, and the hole 14 and the tank 72 of the ink injection device 7 are connected through a conduit 73.

A clamp bolt 12 screwed into a screw hole 24 of a bottom plate 22 of the supply tank 2 and a positioning bolt 13 engaged with a positioning hole 25 are provided on the platform 1.

The guide tube 2 passes through the cover plate 26 of the supply tank 2.
7 is attached, and the valve rod 3 for opening and closing the discharge port 23 is fitted into the cylinder 27 so as to be movable up and down.

A thin shaft portion 31 is formed at the upper part of the valve stem 3, and a slide cylinder 32 is slidably fitted into the thin shaft portion 31.

A spring 34 that urges the slide cylinder 32 upward is fitted into the thin shaft portion 31, and a retaining ring 33 is fitted and fixed to the upper end of the thin shaft portion 31.

A cylinder support stand 40 is provided at one end of the tank mounting stand 1, and the double-acting air cylinder device 4 is mounted on the support stand 40 parallel to the valve stem 3 with the piston rod 41 facing upward.

A rotatable lever 5 is pivotally supported on the piston rod 41 in a plane perpendicular to the rod 41, and an engaging portion 51 is provided on the free end side of the lever 5, into which the thin shaft portion 31 of the valve rod 3 is fitted. .

The engaging portion 51 of the lever 5 is fitted into the thin shaft portion 31 above the slide cylinder 32 on the valve stem 3, and the valve stem 3 is urged downward by the force of the spring 34 fitted to the thin shaft portion 31. The discharge port 23 is closed.

A handle 52 is provided at the free end of the lever 5 and projects upward.

However, when the level of ink in the tank 72 of the ink injection device 7 falls below the lower end of the long electrode rod 75, the cylinder device 4 is actuated to push the piston 41 upward, and the lever 5 on the piston 41 pushes the valve rod 3 upward. The valve stem 3 is raised when it hits the retaining ring 33 at the upper end.

This opens the outlet 23 of the replenishment tank 2, and the ink in the tank flows through the pipe 73 to the tank 72 of the ink injection device 7.

When the level of ink in the tank 72 rises above the lower end of the short electrode rod 76, the cylinder device 4 is actuated to retract the piston 41.

As a result, the valve stem 3 is pushed down again via the spring 34 to close the discharge port 23.

The above operation is repeated every time the amount of ink in the tank 72 of the ink injection device 7 drops below the lower end of the long electrode rod 75, and the ink never runs out.

When changing the ink color, loosen the clamp screw 12 that fixes the bottom of the supply tank 2, switch the cylinder device 4 to exhaust mode, hold the handle 52, and turn the lever 5 in the direction away from the valve stem 3. .

As a result, the replenishment tank 2 is simply placed on the platform 1, so that the replenishment tank 2 can be removed from the platform 1.

By placing the replenishment tank 2 containing another ink on the platform 1 and setting it in the same manner as described above, it is possible to quickly change the setup for changing colors.

It goes without saying that the configuration of each part of the present invention is not limited to the above-mentioned embodiments, but can be modified in various ways within the technical scope of the claims for utility model registration.

[Brief explanation of the drawing]

FIG. 1 is a side view of the ink supply section of the printer slotter, FIG. 2 is a cross-sectional view of the ink supply device along the line shown in FIG. 1, and FIG. 3 is a plan view of the ink supply device. 1...tank mounting stand, 2...supply tank, 3...
...Valve stem, 4...Cylinder device, 5...Lever, 7
...Ink injection device.

Claims (1)

[Scope of utility model registration request] A replenishment tank 2, which has an ink discharge port 23 on its bottom surface, is removably fixed to a tank mount 1, and a valve rod 3 that opens and closes the discharge port 23 is arranged in the replenishment tank 2 so as to be movable up and down. A cylinder device 4 is disposed on the tank platform 1 adjacent to the replenishment tank 2 with its upper end protruding upward from the replenishment tank 2, and a lever 5 is attached to the piston rod 41 of the cylinder device 4 so as to be rotatable in a horizontal plane. An engaging portion 51 is formed at the free end of the lever 5 to removably engage with the upper end of the valve stem 3, and a position corresponding to the outlet 23 of the replenishment tank 2 is formed on the tank mounting base 1. A through hole 14 is formed in the through hole 14 and the tank 7 of the ink injection device 7 is connected to the through hole 14.
2 are connected to each other through a conduit 73, an ink amount detector 74 is disposed in a tank 72 of the ink injection device, and the detector 74 is connected to the cylinder device 4.