JPH0580512U - Dust collector - Google Patents

Abstract

(57) [Summary] [Purpose] Dust can be collected efficiently, maintenance and inspection can be performed easily, installation space is small, and manufacturing is inexpensive. [Arrangement] An air curtain nozzle 16 forming an air curtain 17 surrounding the dust generation point 1 so that the dust generation point 1 and the dust accumulation point 12 communicate with each other, and dust from the dust generation point 1 to the dust accumulation point 12 The air curtain 18 which scatters in the direction and forms the air curtain 17 which surrounds the periphery of the dust generation point 1 by injecting air from the air curtain nozzle 16 so that the dust generated at the dust generation point 1 is air curtain. There is no danger of scattering to the outside of 17 and the air generated from the air gun 18 inside the air curtain 17 scatters the dust generated at the dust generation point 1 toward the dust accumulation point 12 to improve the dust collection efficiency. To improve.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust collector in a machine tool or the like, and more particularly to a dust collector to which an air curtain is applied.

[0002]

[Prior Art]

 Many machine tools generate dust such as cutting powder during processing, but leaving this dust as it is will worsen the working environment of the whole factory, and will also cause casting powder, gypsum board powder, artificial powder, etc. The dust of marble powder, FRP, etc. may have impaired the health of workers. Furthermore, since dust remains on the processing table and the work piece, cleaning is required when removing the work piece, automatic transfer cannot be performed, and the work piece may be damaged by the dust and the quality may deteriorate. There was also. Furthermore, because it is not possible to place it next to equipment such as a paint booth where dust should not be brought close to it, there was a risk that the factory space and layout would be adversely affected.

Therefore, various dust collectors have been developed conventionally.

First, a conventional dust collector of this type will be described.

In the structure shown in FIG. 5, the entire circumference of the processing machine 1 is surrounded by a casing 2, an opening 3 is formed in the casing 2, and dust is sucked from the opening 3 by a pump or the like not shown. It was done.

Further, as shown in FIG. 6, the periphery of the processing blade 4 is surrounded by a dust collecting hood 5, and dust is sucked from the opening 6 of the dust collecting hood 5 by a pump or the like not shown. .. Some of the dust collecting hoods 5 are provided with a brush 8 facing the processing table 7 at the lower end.

Further, the one shown in FIG. 7 is applied to the one in which the direction in which the dust 10 is scattered is specified such as the grinding wheel 9 rotating at a high speed, and the dust collecting hood is arranged in the direction in which the dust 10 is scattered. 5 is provided, and dust is sucked from the opening 6 of the dust collecting hood 5 by a pump or the like (not shown).

[0008]

[Problems to be solved by the device]

 However, the above-mentioned one shown in FIG. 5 encloses the entire machine tool 1 with the casing 2, resulting in an increase in cost, not only poor operability of the machine, but also difficult maintenance work of the machine. In addition, there was a problem that the installation space became large.

6 and 7 are superior to those of FIG. 5 in terms of cost and space, but dust is scattered from the gap of the dust collecting hood 5 to the surroundings. There is a problem in that dust cannot be completely collected, and the dust collecting hood 5 must be removed when changing tools or the like.

In view of the above-mentioned points, the present invention provides a dust collector that can efficiently collect dust, can easily perform maintenance and inspection, has a small installation space, and can be manufactured at low cost. With the goal.

[0011]

[Means for Solving the Problems]

 The dust collector of the present invention comprises an air curtain nozzle that forms an air curtain surrounding the dust generation point so that the dust generation point and the dust accumulation point communicate with each other, and the dust from the dust generation point It is characterized by having an air gun that scatters in the direction of the dust accumulation location.

[0012]

[Action]

 According to the dust collector of the present invention, by injecting air from the air curtain nozzle to form the air curtain surrounding the dust generation point, the dust generated at the dust generation point is scattered to the outside of the air curtain. There is no danger of Also, by injecting air from the air gun inside the air curtain, the dust generated at the dust generation location is blown by the air and scattered toward the dust accumulation location, so the dust collection efficiency is good.

[0013]

【Example】

 The present invention will be described below with reference to the embodiments shown in the drawings. It should be noted that the same or corresponding configurations as those of the above-described conventional one will be described with the same reference numerals.

1 and 2 show an embodiment of a dust collector according to the present invention, in which a workpiece 11 is placed on a machining table 7 of a machine tool 1, and A processing blade 4 for cutting the workpiece 11 faces above the workpiece 11.

A dust collecting duct 12 having an opening 13 on one side is disposed below the left side of the machine tool 1 in FIG. 1, and the dust collecting duct 12 collects dust by a pump or the like (not shown). It is possible to suck. Further, a dust collecting hood 5 for introducing the dust generated in the working machine 1 into the dust collecting duct 12 is provided in the dust collecting duct 12 from above the end portion of the processing table 7. It is formed near the opening 13 of the duct 12.

On the other hand, on the right side of the machine tool 1 in FIG. 1, an air curtain forming body 14 is arranged at a position higher than the height of the processing table 7. The air curtain forming body 14 includes a pair of columnar air supply pipes 15A and 15B which are arranged at right and left sides facing the processing table 7 of the machine tool 1 and both of the air supply pipes 15A. , 15B, and another air supply pipe 15C arranged so as to connect the upper ends of the first and the second air ports 15B.

Each of the air supply pipes 15A, 15B, 15C is connected to a blower (not shown), and air is supplied from the blower to each of the air supply pipes 15A, 15B, 15C. A slit-shaped air curtain nozzle 16 is formed on the side of each of the air supply pipes 15A, 15B, 15C facing the machine tool 1, and the air jetted from these air curtain nozzles 16 causes An air curtain 17 is formed to cover the processing table 7 above the processing blade 4 (see FIG. 2). Therefore, the air curtain 17 surrounds the processing table 7, which is the place where dust is generated. Further, the inside of the air curtain 17 is communicated with the inside of the dust collecting duct 12 which is a dust accumulation location.

A plurality of air guns 18, 18, ..., which are supported by a cylinder (not shown) so as to be movable up and down and are oriented toward the machine tool 1, are arranged slightly closer to the processing table 7 than the air curtain forming body 14. It is set up. Each air gun 18 is connected to a compressor (not shown) and is capable of injecting high-pressure air.

The reason why each of the air guns 18 can be moved up and down is so as not to impair the operability of the operator. Therefore, each of the air guns 18 is processed by the work start command. The table 7 is lowered to a position where high-pressure air can be jetted, and is raised above the upper end of the air curtain forming body 14 in response to a work end command. Then, this command is issued by a push button switch, a foot switch, a control signal from a control device, or the like.

The timing of starting and stopping the injection of air from the air curtain nozzle 16 and the air gun 18 is controlled by an external command.

Next, the operation of this embodiment having the above-described configuration will be described.

The dust collecting duct 12 is adapted to suck air and dust from the opening 13, and in this state, when starting the cutting process, each air supply pipe 15A, 15B, 15C of the air curtain forming body 14 is started. Air is ejected from the air curtain nozzle 16 to form an air curtain 17 surrounding the upper side of the processing table 7. On the other hand, after lowering each air gun 18 to a position facing the processing table 7, high pressure air is ejected from each air gun 18.

In such a state, dust such as cutting dust generated by cutting does not scatter around because the upper part of the processing table 7 is surrounded by the air curtain 17, and the air gun 18 The high-pressure air from forcibly scatters toward the inside of the dust collecting hood 5 and is sucked into the dust collecting duct 12 from there.

As described above, according to the present embodiment, it is possible to reliably collect the dust on the processing table 7 and the workpiece 11 without scattering to the surroundings without impairing the workability. Therefore, not only the working environment can be improved, but also the health of the worker is not impaired, and it is possible to place the equipment close to dust-friendly equipment, and the plant space and layout can be compacted.

On the other hand, since the dust is blown off by the air, the workpiece 11 is not likely to be damaged. Further, since the processing table 7 is only surrounded by the air curtain 17, the processing state can be monitored. Furthermore, since dust does not adhere to the work piece 11, the periphery of the processing table 7 is open, it can be transported by suction, and the positioning accuracy of the work piece 11 does not change. , Automatic loading and unloading can be promoted.

FIG. 3 shows a second embodiment of the present invention. In this embodiment, the air carten supply body 14 and the air gun 18 are rotatable so that they can be undulated at the end of the processing table 7. It is supported.

With such a configuration, when the air curtain supply body 14 and the air gun 18 are not used, they are retracted to the position shown by the broken line in FIG. 3 so that they do not interfere with the work, and The air curtain supply body 14 and the air gun 18 can be made compact.

FIG. 4 shows a third embodiment of the present invention. In this embodiment, a main spindle 19 of a machine tool 1 supports an air curtain supply unit 14 and an air gun 18.

According to such a configuration, it is not necessary to form the air curtain 17 in the entire area of the processing table 7, and the air curtain 17 may be formed in a narrow area. Dust can be collected.

The present invention is not limited to the above-described embodiments, but various modifications can be made as necessary.

[0031]

[Effect of the device]

 As described above, according to the present invention, it is possible to efficiently collect dust, to perform maintenance and inspection easily, to reduce the installation space, and to manufacture at low cost. it can.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing the operation of FIG.

FIG. 3 is a schematic front view of a main part showing a second embodiment of the present invention.

FIG. 4 is a schematic front view of an essential part showing a third embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a conventional example.

FIG. 6 is an explanatory view showing a conventional example.

FIG. 7 is an explanatory view showing a conventional example.

[Explanation of symbols]

 1 Machine Tool 5 Dust Collection Hood 7 Processing Table 14 Air Curtain Former 15A, 15B, 15C Air Supply Pipe 16 Air Curtain Nozzle 17 Air Curtain 18 Air Gun 19 Spindle Spindle

Claims (1)

[Scope of utility model registration request] 1. An air curtain nozzle that forms an air curtain surrounding the periphery of the dust generation point so that the dust generation point and the dust accumulation point communicate with each other, and dust from the dust generation point to the dust accumulation point direction. A dust collector having an air gun for scattering.