JPH0434031Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a sludge removal device for paper-biting nails, etc. in printing machines. This invention relates to a device for removing sludge such as paper powder, spray powder, dust, oil mist, etc. that has accumulated on a table.

(Prior Art) As is well known, in a sheet-fed printing press, as shown in FIG. 5 and FIG.
A nail stand 2 facing the nail 10 that bites the printed paper 40
0 is placed.

That is, a known paper-biting nail 10 as an example.
A claw body 12 having a line groove 13 on the tip end clamping surface is pivotally attached to a base 11 having a shaft hole and a split groove via a horizontal shaft 14, and the rear end is attached to a bolt 15 and a nut 16. The claw body 12 is movably locked by the
A spring 17 is loaded between the base 11 and the base 11,
The claw body 12 is configured to move up and down within a certain range using a horizontal shaft 14 as a support.

The paper gripping claw 10 is inserted into a shaft hole of the base 11 through a horizontal shaft 18 installed horizontally in the body 30, and is fixed by tightening a bolt 15 and a nut 16. The nail base 20 is disposed opposite to the nail base 20 having the following.

By the way, sludge such as paper powder, spray powder, dust, oil mist, etc. adheres to and accumulates in the line groove 13 in the claw body 12 of the paper-biting claw 10 and the line groove 21 in the claw base 20, and this can cause printing failures. It is necessary to remove this sludge because it is the cause.

Therefore, as shown in FIG. 8, the conventional method for removing this sludge is to loosen the nut 16 from the state shown in FIG. Rotate in direction A to separate the tip of the claw body 12 from the claw base 20, and in the state shown in FIG. The accumulated sludge was removed by scrubbing with a brush or a thin wire brush.

(Problem that the invention attempts to solve) However, in this conventional method, the nuts of the numerous paper-clutching claws are loosened and rotated one by one.
Moreover, it is not only time consuming to put the nut back together after finishing, but it is also troublesome and inefficient because the nut has to be tightened again and adjusted to its original state. Since the paper is rubbed with a brush, the line grooves gradually disappear and become flat, making it impossible to grip the printing paper well and causing printing problems.

The present invention was developed in view of these conventional drawbacks, and its purpose is to maintain the nut of the paper gripper in its original state without loosening and rotating it, and without scrubbing it with a brush. An object of the present invention is to provide a device that can effectively and quickly remove sludge adhering to paper-biting nails and nail stands.

(Means for Solving the Problems) For this purpose, the present invention provides a spray feeding device 50 that pumps a sludge solution such as paper powder deposited on paper biting nails etc. in the form of a spray, and this spray feeding device 50. A spray gun 70 is connected to the device 50 via a flexible tube 60, and a nozzle body 81 is removably attached to the spray gun 70, and the tip portion of the nozzle body 81 is crushed into a flat shape with a small gap 82. The spray nozzle 80 is characterized in that its end edge 83 is sealed, and a spray nozzle 80 is provided with an injection hole 85 in a flat crushed portion 84 .

(effect) The operation of the present device will be explained.

Tip line groove 13 of nail body 12 in paper biting nail 10
In order to remove the sludge that has adhered and accumulated inside, in the state shown in FIG. 6 without the printing paper 40 being held, insert a screwdriver or the like into the gap between the tip of the claw and the claw base 20 and move the claw body 12 upward. The nozzle flattened part 84 of the spray nozzle 80 is inserted into the spray nozzle 80 after being expanded slightly, or the flattened part 84 is directly inserted and the tips of the claws are expanded with the inclined part 86 . After arranging the claw body line grooves 13 to face each other (see FIG. 7), the sprayed sludge solution is pumped from the spray pumping device 50 through the flexible tube 60 by operating the spray gun 70. is injected from the injection hole 85 of the flat crushed part 84 to dissolve and remove the sludge, and after the injection is finished, the flat crushed part 84
, and the same procedure is repeated for the nail rest 20.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As schematically shown in FIG. 1, the device of the present invention includes a spray pumping device 5 that pumps a known dissolving solution that dissolves and removes sludge such as paper powder in the form of a spray.
0, and a spray gun 70 connected to this spray pressure feeding device 50 via a flexible pipe 60 such as a resin pipe.
and a spray nozzle 80 detachably connected to the spray gun 70.

It should be noted that the spray force feeding device 50 and the spray gun 70 are well known, and a description of their structure will be omitted.

As shown in FIGS. 2, 3, and 4, the spray nozzle 80, which is the main part of the present device, consists of a nozzle body 81 and a male connecting member 87 that is integrally connected and fixed to the nozzle body 81. The body 81 is formed by crushing the distal end of a metal tube having a predetermined diameter and length into a flat shape with a slight gap 82, and sealing the end edge 83. Three injection holes 85 for the atomized solution are formed at equal intervals in the side part and perpendicular to the nozzle axis direction.

Note that the width l and length _L of the flat crushed portion 84 are determined by inserting the flat crushed portion 84 into the gap between the tip of the nail body 12 of the paper biting nail 10 and the nail base 20, as shown in FIG. The width and length are set to correspond to the line grooves 13 of the claw body 12 in a state in which the distal end portion of the claw body 12 is slightly expanded at the inclined portion 86.

The metal male connecting member 87, whose base 88 is inserted through the opening at one end of the nozzle body 81 and is integrally connected and fixed thereto, has a slightly large-diameter collar 89 and a concave groove 90 around the outer periphery. It has a fitting part 91 integrally, and has a through hole 92 in the axial direction.

The spray nozzle 80 can be attached to and detached from the spray gun 70 with a simple one-touch operation using the means illustrated in FIG.

That is, after the slide ring 71 of the attachment part of the spray gun 70 is moved in the direction of arrow X through compression of the spring 72, the fitting recess 73 is moved.
Insert the fitting part 91 of the connecting member in the spray nozzle 80 into the slide ring until the groove 90 and the sphere 74 engage with each other (the position where the collar part 89 abuts the end surface of the fitting recess 73). When the slide ring 71 is released, the slide ring 71 moves in the direction of the arrow X' shown in FIG. 4 due to the return force of the spring 72.
The end face is locked to the collar 89, and the groove 9
Since the sphere 74 engaged with the slide ring 71 is pressed and held by the inner circumferential surface of the slide ring 71, it is locked, and the spray nozzle 80 is attached to the spray gun 70 with a one-touch operation.

To remove the spray nozzle 80, move the slide ring 71 in the direction of arrow X to release the pressed state of the sphere 74, and then remove the spray nozzle 80.
0 in the axial direction, it can be removed with a one-touch operation.

(Effect of the invention) According to the invention, it is only necessary to insert the tip of the spray nozzle into the gap between the nail body and the nail base of the paper-biting nail, and it is not necessary to loosen the nut one by one and bite the paper-biting nail. Since the troublesome work of rotating the claw and returning it to its original position is not required, the slide removal work can be performed extremely efficiently. Moreover, since the sludge is dissolved and removed by spraying a spray-like solution and is not removed by rubbing with a brush as in the past, it is not only possible to remove sludge very effectively. Since it does not have any influence on the line grooves of the gripping claws, etc., it is possible to maintain the same good gripping function of the printed paper.

[Brief explanation of drawings]

Fig. 1 is an overall explanatory diagram showing one embodiment of the present invention, Fig. 2 is a plan view of the main part of the spray nozzle, Fig. 3 is a sectional view taken along the line -
The figure is a cross-sectional view showing how the spray nozzle is attached to the nozzle gun, Figure 5 is a partially omitted schematic diagram showing how the paper biting nail and nail stand are attached, and Figure 6 is a partially omitted schematic diagram showing how the paper biting nail and nail stand are attached. FIG. 7 is a partially omitted explanatory diagram of the present invention in use, and FIG. 8 is an explanatory diagram of a conventional sludge removal method. 50... Spray pressure feeding device, 60... Flexible tube, 70
...Spray gun, 80 ...Spray nozzle, 8
1...Nozzle body, 82...Gap, 83...Edge,
84... Flat crushed portion, 85... Injection hole.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A spray feeding device that pumps a sludge solution such as paper powder deposited on paper biting nails etc. in the form of a spray, and a device connected to this spray feeding device via a flexible tube. A spray gun, which is removably attached to the spray gun, and the tip of the nozzle body is crushed into a flat shape with a slight gap, the edge of which is sealed, and the flat crushed part has an injection hole. A device for removing sludge such as paper-biting claws in a printing press, which comprises a drilled spray nozzle. 2. The sludge removal device according to claim 1, wherein the spray nozzle has an injection hole perpendicular to the axial direction of the nozzle.