JPS5824230B2 - Abrasive material injection device for polishing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an abrasive spraying device for a polishing machine that removes scale and the like attached to the surface of a material to be polished by blowing the abrasive material.

For removing scales etc. attached to the surface of materials to be polished such as strips, the polishing machines currently in use have a nozzle arrangement in the width direction that blows out the abrasive material, allowing the scale removal device to pass through and process the material. The nozzle for spraying the abrasive material cannot be adjusted in the width direction even if the width dimension of the material to be polished changes.

Therefore, when removing scale from a narrow material to be polished, more abrasive material is consumed than necessary, and a polishing machine equipped with a device to collect and reuse the abrasive material is required. This results in the collection device consuming more energy than necessary, and the abrasive material is also used up unnecessarily.
It had the following problems.

The present invention is capable of solving the problems of the conventional methods described above, and is capable of displacing a nozzle device consisting of a pressure fluid injection nozzle and an abrasive material injection nozzle within a distance corresponding to the maximum width of the material to be polished. A main valve for pressure fluid adjustment and cleaning that collectively adjusts the amount of pressure fluid and abrasive material to be supplied to a plurality of nozzle devices provided at intervals and at positions corresponding to the minimum width of the material to be polished. In addition to providing a main valve for material adjustment,
A polishing machine characterized in that other nozzle devices are provided with an independent valve for adjusting the pressure fluid and an independent valve for adjusting the abrasive material, which separately adjust the amount of the pressure fluid and the abrasive material to be fed. This relates to an abrasive injection device.

The present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, within a width dimension corresponding to the expected maximum width S1 of the material to be polished 2, for a nozzle header 1 arranged perpendicularly across the line of the material to be polished 2 such as a strip. A plurality of nozzle devices 3 are arranged at predetermined intervals.

The nozzle device 3 is composed of a pressure fluid injection nozzle 4 and an abrasive material injection nozzle 5, and the nozzle device 3 further includes a central portion A corresponding to the expected minimum width S2 of the material to be polished 2.
It is roughly divided into left and right side parts B.

That is, the pressure fluid injection nozzles 4 of each nozzle device 3 in the central portion A eject pressure fluid from the fixed valves 6 and those nozzles 4 provided so that the velocity of the pressure fluid ejected from each nozzle 4 is constant. It is connected to a pressure fluid pipe 9 from a pressure fluid source 8 via a pressure fluid regulating main valve 1 that regulates the total amount, ie, velocity, of the pressure fluid.

Furthermore, the abrasive material injection nozzles 5 in the central part A are adjusted to have a constant amount of abrasive material ejected from each nozzle 5, and the main valve for adjusting the abrasive material is configured to adjust the total amount of the abrasive material. It is connected to an abrasive material supply pipe 12 from an abrasive material pumping source 11 via an abrasive material supply pipe 10 .

Further, the pressure fluid injection nozzles 4 of each nozzle device 3 in the left and right side portions B are connected to the pressure fluid pipes through independent pressure fluid adjustment valves 13 that separately adjust the amount of pressure fluid injected from each nozzle 4. Further, the abrasive material injection nozzles 5 on the left and right sides B are connected to the abrasive material adjustment valve 14, which separately adjusts the amount of abrasive material ejected from each nozzle 5. It is connected to the abrasive supply pipe 12 .

Figure 2 A 2 shows an example of the independent valve 14 for adjusting the abrasive material, and if a directional valve type is used and the material 2 to be polished has a width that reaches its bottom, Figure 2 I As shown in FIG. The abrasive material is circulated through the tank.

Further, the main valve 7 for adjusting pressure fluid, the main valve 10 for adjusting abrasive material, the independent valve 13 for adjusting pressure fluid, and the independent valve 14 for adjusting abrasive material are each configured to be remotely controllable separately or in association with each other. ing.

In the abrasive material injection device having the above configuration, as shown in S2 (
When removing scale etc. from the narrow material to be polished 2,
Opening the main valve 7 for pressure fluid adjustment and injecting pressure fluid from each pressure fluid injection nozzle 4 in the central part A,
By opening the main valve 10 for adjusting the abrasive material and jetting out the abrasive material from each abrasive material injection valve 5 in the central part A,
The abrasive material is carried by the jet flow of the pressure fluid and collides with the surface of the material to be polished 2, thereby performing the cleaning.

At this time, the main valves 7 and 10 are adjusted so that the ratio of the abrasive material to the pressure fluid is optimal for cleaning.

In this way, when the width of the material to be polished 20 is narrow S2, cleaning is performed only with the nozzle device 3 in the center part A, and at this time, the nozzle devices 3 on the left and right sides B stop operating, that is, they are independent for pressure fluid adjustment. The valve 13 is closed and the independent valve 1 for adjusting the abrasive material is closed.
4 are respectively switched so that the abrasive material is circulated to the tank as shown in the opening of FIG.

Next, as shown in Sl.
(and switch the independent valve 14 for adjusting the abrasive material as shown in FIG. 2A) to operate the nozzle devices 3 on the left and right sides B.

At this time, the independent valves 13 and 14 are adjusted by remote control so that the nozzle devices 3 in the left and right side portions B have the same injection speed as the nozzle device 3 in the center portion A.

Furthermore, even when the width of the material to be polished 20 is between 81 and 82, the nozzle devices 3 on the left and right sides B can be operated independently, so it is possible to operate the nozzle devices 3 only on the parts that match the width. Cleaning can be carried out using

At this time, it is easily possible to provide a device for detecting the width of the material to be polished 20 and operate the independent valves 13, 14 based on the signal from the device.

Further, as mentioned above, the independent valve 14 for adjusting the abrasive material is
The abrasive material injection nozzle 5 is configured as shown in Figure A with three ports.
By circulating the abrasive material back into the tank when not in use, it is possible to prevent the slurry-like abrasive material from settling and clogging the nozzle circuit.

It should be noted that the present invention is not limited only to the above embodiments (
A valve for adjusting the flow rate of the abrasive material may be provided between each nozzle that injects the abrasive material, the main valve for adjusting the abrasive material, and the independent valve for adjusting the abrasive material, without departing from the gist of the vehicle invention. Various changes may be made within the scope.

As described above (according to the abrasive injection device of the present invention, (I)
Since the abrasive material can be sprayed in accordance with the width of the material to be polished, (1) consumption of the abrasive material is reduced;

(I:) Driving energy and energy of the abrasive material recovery device can be saved.

(II) By operating the nozzle devices on the left and right sides independently, cleaning can always be performed with the same concentration of abrasive even if the width of the material to be polished changes.

(e) If the abrasive material from the abrasive material injection nozzle that is not in use is returned to the tank using the independent valve for abrasive material adjustment and circulated, the abrasive material will not settle in the nozzle piping. Therefore, it is possible to spray a predetermined concentration of abrasive material at the same time as operation.

Demonstrates excellent effects such as

[Brief Description of the Drawings] Fig. 1 is a simplified explanatory diagram of an embodiment of the present invention, and Fig. 2 A5 shows an embodiment of the independent valve for adjusting abrasive material of the present invention and its function. It is an explanatory diagram. 1 is a nozzle header, 2 is a material to be polished, 3 is a nozzle device,
4 is a pressure fluid injection nozzle, 5 is an abrasive material injection nozzle, 7 is a main valve for pressure fluid adjustment, 8 is a pressure fluid source, 10 is a main valve for abrasive material adjustment, 11 is an abrasive material pressure feeding source, 13
14 is an independent valve for regulating pressure fluid, 14 is an independent valve for regulating abrasive material, A is the center portion, and B is the left and right side portions.

Claims (1)

[Claims] 1. A plurality of nozzle devices consisting of a pressure fluid injection nozzle and an abrasive material injection nozzle are provided at predetermined intervals within an interval corresponding to the maximum width of the material to be polished, and a nozzle device consisting of a pressure fluid injection nozzle and an abrasive material injection nozzle is provided at a predetermined interval within an interval corresponding to the maximum width of the material to be polished. A main valve for adjusting the pressure fluid and a main valve for adjusting the abrasive material are provided to collectively adjust the amount of the pressure fluid and the abrasive material to be supplied to the nozzle device at the position, and
A polishing machine characterized in that other nozzle devices are provided with an independent valve for adjusting the pressure fluid and an independent valve for adjusting the abrasive material, which separately adjust the amount of the pressure fluid and the abrasive material to be fed. Abrasive material injection device.