JPS5854866B2 - Spray display device using ink jet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention sprays ink from behind a display board that has punched holes for letters, numbers, marks, etc., and attaches ink to an object in front of a window (corresponding to the punched holes). Regarding the display device, especially when the display to be attached is long in one direction, the ink jetting device is oscillated in that direction to spray the ink, so that even a long display can be attached with one ink jetting device. This is what I did.

The present invention will be described below with reference to an embodiment in which the ink jet device swings its head on a horizontal plane, that is, in the horizontal direction.This is because the display is long in the horizontal direction, and if the display is long in the vertical direction, The shaking direction of the injection device can be set in any direction according to the length direction of the display, such as shaking the head in the vertical direction.

1 is a fuselage, which has an L-shaped upper wall 2 on its upper surface.

On the horizontal part 2a of the upper wall 2 covered by the tunnel-shaped cover 7, there is an air nozzle 4a mounted on a fluid-pressure-operated swing-type actuator 3 that sprays air forward, and an upward ink nozzle that sucks up ink. An ink ejecting device 4 having a right-angled nozzle 4b protrudes.

The angle of rotation of the actuator 3 is, for example, 90
A rocking motor, a rocking cylinder, and an oscillator that perform a rotary reciprocating motion limited to 30°, and are fixed to the lower surface of the horizontal portion 2a with the rocking shaft 3' facing in the vertical direction, and the rocking shaft 3' The injection device 4 is fixed to the upper end of the .

Then, a through hole is bored along the axis of the swing shaft, and the upper end is inserted into the body of the injection device 4, and the ink suction tube 5 connected to the lower end of the ink nozzle 4b is passed through the through hole from below. It is made to protrude and reach the bottom of the ink holding cylinder 6 which is vertically disposed from the lower surface of the actuator (FIG. 4).

Incidentally, the ink is caused to flow from the bottom of the ink tank γ into the vicinity of the bottom of the ink holding cylinder by gravity through the conduit 8, but if possible, the ink tank should be attached to the outskirts of the aircraft, and the lid should be left open to replenish the ink. It is a good idea to make it convenient for checking whether there is still ink inside.

A base plate 10 that is moved back and forth by a piston-type actuator 9 is provided on the front surface of the vertical portion 2b of the earthen wall.

The actuator 9 is connected to the substrate 1 at the tip of the piston rod.
0 is fixed at the center in the width direction, and a guide device 11 consisting of a cylinder 11a and a guide rod 11b that swings inside the cylinder 11a is installed between the left and right sides of the board and the corresponding left and right sides of the vertical part. 10 should be moved straight forward and backward.

A long rod 12.1 extends forward from the left and right sides of this board 10.
2 protrudes and passes forward over the injector 4.

A vertical shaft 13' is connected to the front center of the connecting cross beam 13 that connects the toes of both rods 12, 12, and springs 15 of equal force are installed between the left and right ends of the display holding plate 14.
The display holding board 14 is held parallel to the display holding plate 14.

Incidentally, the rod 12.degree. 12 is a guide tube 12a provided on the substrate 10.

The rod 12a penetrates through the rear part of the rod 12a and is held in a horizontal state, and between the front ends of the guide tubes 12a, 12a and the front ends of the rods 12, 12, springs 12b are compressed and contracted around the rods.
It is preferable to bias each of them forwardly.

Of course, a stopper is provided at the rear end of the rod so that the guide tube 12
a, and place it against the rear end of 12a.

The display holding plate 14 has a horizontally elongated window 16 at a position facing the injection device 4, and a display plate 17 having punched holes for characters, symbols, marks, etc. is attached to cover the window 16. .

The display board 17 may be, for example, a JIS mark and its department symbol or classification number represented by a punched hole 17', a manufacturer's abbreviation or trademark represented by a punched hole, or a number or symbol indicating the date of manufacture. Items with punched holes, etc., and in particular items with the date of manufacture, etc., should be kept so that they can be replaced daily.

In this embodiment, a hook is attached to the front surface of the holding plate 14 slightly above the upper edge of the window, and a hole in the upper edge of the display plate 17 is hooked to the hook so that the display plate 17 is hung from the front of the window. This attachment method can be carried out in any suitable manner, for example by providing opposing grooves along the upper and lower edges of the window and sliding them into the grooves.

In this embodiment, the fuselage 1 is of a stationary type and is placed at an object stopping position beside the trajectory a' of an intermittently moving object a, but on the contrary, the objects are lined up in a row. It is also possible to make the side move intermittently.

According to this embodiment, when the object X stops with the side surface of the concrete block in front of the display holding plate at a substantially constant distance S, the switch is turned on.

As a result, the actuator 9 extends the piston rod, advances the substrate 10 and the display holding plate 14 together, and presses the display holding plate 14 against the side surface of the block.

In this case, the amount of extension of the piston rod is set to be slightly larger than the distance S between the display holding plate and the side surface of the block.

As a result, even if the side of the block is slightly inclined to the front side of the display holding plate 5, that is, it is not parallel to the display holding plate 1.
4 is the vertical shaft 13 while compressing either the left or right spring 15.
’ as a fulcrum and follows the side of the block.

Also, when the display holding plate is pressed against the side of the block at the same time, the slight elongation of the piston rod after that causes the rod 12
A guide cylinder 12a integral with the substrate 10 along the angle 12.

12a compress the springs 12b and move forward, which is absorbed by G, and the display holding plate is thus elastically pressed tightly against the side surface of the block.

When the piston rod extends a certain amount, the signal generated by this causes the swinging actuator 3 to operate, causing the ink jetting device 4 to swing, and at the same time, the compressed air source and air nozzle 4a are connected, and compressed air is discharged from the air nozzle. is injected.

The swinging actuator 3 is initially at one end of its swinging range, and in this state both nozzles 4a, 4b are facing one end of the window 16 in the lateral direction.

Therefore, the swing actuator starts swinging toward the other end of the swing range, and as a result, the ink jetting device 4 swings its head and compressed air is jetted from the air nozzle 4a, so that the ink is sucked up into the ink nozzle 4b. The liquid is sprayed from one end of the window 16 to the other end, and characters, symbols, and marks corresponding to the punched holes in the display board 17 are displayed on the side of the block.

When the oscillating actuator 3 finishes its forward movement and the nozzle faces the other end of the window 16, the actuator 3 moves to the backward movement, and at the same time, the actuator 3 moves in the middle of the piping between the compressed air source and the near nozzle 4a. The valve located at is closed and the air jetting stops, so the ink jetting stops, and the piston type actuator 9 retracts the piston rod and moves the display holding plate 14 away from the block by a distance S so as not to impede the movement of the block. They are then released, thus all returning to the image state and completing the -cycle.

Therefore, in this embodiment of the window 16, by employing the swing type actuator 3 with a desired swing amount according to the lateral length and determining the distance between the window 16 and the injection device 4, it is possible to use only one injection device. Display can be made by spraying ink over the entire length of the window.

Note that it is preferable to collect as much excess ink as possible from the ejected ink.

Fortunately, in this embodiment, the display holding plate 14 faces the side of the block, but since the front end of the aircraft is hidden under the block, the display holding plate 14, which moves forward and backward, is attached to the front end of the horizontal part 2a of the earthen wall. An opening 2a' is provided below the opening 2a', an ink receiver 19 is provided below the opening 2a', and a removable filter 20 is placed above the opening 2a'.
The ink dripping from the display holding plate while the ink is being ejected and when the ink stops being ejected and is retreated is collected through the filter and collected into the ink receiver 19.

In addition, a slit 14' is provided in the display holding plate along the upper edge of the window, and the tip c? A blow pipe 21 installed in a T-shape is made to pass through a slit 14' and project to the front surface when the display holding plate is retreated.

Thereby, when the display holding plate is retreated, air is ejected diagonally downward toward the entire length of the window, so that the ink adhering to the front surface of the display plate can be blown downward and dripped into the ink receiver 19.

In addition to dripping ink from the front of the display board as described above, the air jet from the fumarole pipe 21 also dries the ink that has leaked from the front of the display board quickly, and prevents the ink from being blocked when pressed against the next block. It also has the effect of preventing the sides of the paper from being smeared with ink and being dusted off even if a label is attached.

In this example, the slit 14' is closed with a rubber plate 21' to prevent ink from ejecting from the slit 14'.

Also, in front of the injection device 4, in this example immediately after the opening 23', a mask wall 23 is installed, which has a transverse slot 22 through which only the ink directed towards the area of the window 16 passes through, of the injected ink. The ink jetted onto the rear surface of the mask wall is received by a receiving groove 23' provided below the slot on the rear surface, and is discharged onto the filter 20 through a conduit 24, whereupon the ink is also collected in the ink receiver 19. It's like that.

It is preferable to stack several filters 20 on top of one another, with the lower ones having finer mesh.

The recovered ink collected in the ink receiver 19 is then transferred to the conduit 8.
It is led out from the bottom through a conduit 25 connected in a T-shape to the conduit 8, and returned to the conduit 8 for injection.

Note that if the display holding plate is pressed against the side surface of the block and the display plate comes into direct contact with the side surface of the block, there is a possibility that the display plates 17, which have punched holes and are weak in strength, may be deformed.

For this reason, it is preferable to provide protrusions 26 on the front left and right sides of the display holding board, for example on both sides of the window 16, and to bring the protrusions into contact with the side surfaces of the block so that the display board is protected at a distance of about Lmm 6 from the side surfaces of the block.

These protrusions 26, 26 also float the display board from the side surface of the block, which has the effect of preventing ink adhering to the display board from staining the side surface of the next block.

Furthermore, although the display plate is attached to the front of the display holding plate to facilitate attachment and replacement work, it may also be attached to the rear section.

The present invention has been described above according to an embodiment shown in the drawings, but as described above, the present invention sprays ink while swinging its head in the length direction of the window to which the mask plate is attached. The gist of this invention is to attach a display to a single injection device, and as long as the configuration in this respect is provided, the design can be modified in various ways and implemented.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is a vertical side view, Fig. 2 is a plan view with the cover cut out, Fig. 3 is a perspective view of the display holding plate, and Fig. 4 is a main part. Figure 5 is a front view of the same as above, with part of the enlarged side joint shown in cross section. , 16 is the window, 17 is the display board, and 17' is a punched hole in the display board.

Claims (1)

[Claims] 1. A display holding board that has a long and narrow window covered by a display board with characters, symbols, marks, etc. an actuator that moves forward and backward in order to press against an object or release it from the object; an ink jetting device located behind the display holding plate; and an actuator that swings the ink jetting device along the longitudinal direction of the window of the display holding plate. Ink spraying using a swing actuator that moves the display device