JPH052781U - Air blower - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Efficiently removes chips and cutting oil adhering to the workpieces with air. An air blow-out pipe 10 having a plurality of air blow-out holes 9 is attached to a rotary shaft 7, a fan 13 for blowing air from the back of the air blow-out pipe 10 is attached, and the air blow-out pipe 10 is supplied with an air supply source 18
Connected to. As a result, when the rotary shaft 7 rotates, the air blowing pipe 10 and the fan 13 rotate, and the air jetted from the plurality of air blowing holes 9 of the air blowing pipe 10 becomes a vortex, and the flow of the air blown from the fan 13 on this becomes a vortex. When superposed, they form a strong vortex, and this air is evenly blown onto the workpiece.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air blower used to remove chips, cutting oil, and the like adhering to a workpiece by air.

[0002]

[Prior Art]

 Conventionally used air blowers inject pressurized air supplied from an air supply source such as a compressor from a pipe nozzle onto the surface of a workpiece, and the chips and cutting oil that adhere to the surface of the workpiece due to cutting, etc. Are removed from the surface of the work piece.

[0003]

[Problems to be solved by the device]

 However, according to such a conventional technique, since the pipe nozzle has a single hole, when the workpiece is a long workpiece or a large workpiece, the workpiece is moved with respect to the nozzle or a plurality of pipes are used. A nozzle was installed to remove chips and the like. Therefore, when moving the workpiece with respect to the nozzle, there is a problem that the work of removing the chips and the like takes time and is not efficient. On the other hand, when a plurality of pipe nozzles are installed, the work of removing chips and the like can be performed more efficiently than in the case described above, but it is difficult to blow pressurized air evenly on the workpiece. there were. Therefore, it has been desired to provide an air blower that can evenly pressurize air on a workpiece and can more efficiently remove chips and the like.

[0004]

[Means for Solving the Problems]

 The present invention has been devised in order to meet the above-mentioned demand, and an air blowout pipe having a plurality of air blowout holes is attached to the rotary shaft, and a fan for blowing air from the back of this air blowout pipe is attached. The air outlet pipe is connected to an air supply source.

[0005]

[Action]

 When the rotating shaft rotates, the air blow-out pipe and the fan rotate, and the air injected from the multiple air blow-out holes of the air blow-out pipe becomes a vortex, and the flow of the air blown from the fan overlaps with this, creating a strong vortex. Become.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 to 2 show the details of the air blowing portion 2 of the air blowing device 1. In these figures, 3 is a bearing block. An air chamber 4 is formed in the bearing block 3, and an air introduction port 5 opening to the air chamber 4 is formed. Air is introduced into the air chamber 4 through the air introduction port 5. It is like this. A bearing 6 is arranged inside the bearing block 3, and the bearing 6 rotatably supports a cylindrical rotating shaft 7 having a bottom, and the hollow hole 8 of the rotating shaft 7 and the air chamber 4 are connected to each other. It is in communication.

The rotary shaft 7 is formed by radially welding a plurality of bottomed cylindrical air blow-out pipes 10 having a plurality of air blow-out holes 9 at the tip thereof, and rotating the hollow blower 11 and the hollow holes 11 of the air blow-out pipes 10 together. The shaft 7 is communicated with the hollow hole 8 of the shaft 7. A fan 13 is fixed to the flange 12 of the rotary shaft 7 with screws 14. This fan blows air upward in the figure when the rotating shaft 7 rotates, and blows air to the back of the air blowing pipe 10.

In FIG. 1, reference numeral 15 is a seal member that closes the open end of the bearing block 3. The seal member 15 is screwed into the open end of the bearing block 3, and the seal ring 16 housed in the inner peripheral portion of the seal member 15 is brought into close contact with the rotary shaft 7.

Reference numeral 17 denotes a nozzle for blowing air to the fan 13, and the air blown from the nozzle 17 rotates the fan 13 and the rotary shaft 7 integrated with the fan 13.

Next, the overall configuration of the air blowing device 1 including the air blowing section 2 will be described with reference to FIG.

In the figure, reference numeral 18 is a compressor as an air supply source, and this compressor 18 is a pipe line 22 extending through a filter 19, a directional control valve 20 and a branch pipe 21, and an air introduction port of the bearing block 3. It is connected to 5. Further, the compressor 18 is connected to the nozzle 17 by a pipe line 23 branched by a branch pipe 21. Reference numeral 24 denotes a flow rate adjusting valve arranged in the pipe line 23. The flow rate adjusting valve 24 adjusts the amount of air blown from the nozzle 17 and adjusts the rotation speed of the fan 13 (that is, the rotation speed of the rotary shaft 7). To use.

In the OFF state shown in FIG. 3, the directional control valve 20 closes the pipe line 22a on the compressor 18 side and opens the pipe line 22b on the bearing block 3 side to the atmosphere. When energized and turned on, the compressor side conduit 22a and the bearing block side conduit 22b communicate with each other.

Reference numeral 19 a is a blowing filter, and 25 is a motor for driving the compressor 18. Further, reference numeral 26 is a processed product which has been subjected to cutting and the like.

According to the above-described structure of the embodiment, when the motor 25 is turned on and the direction control valve 20 is turned on, the air discharged from the compressor 18 is supplied to the air blowing section 2 and the nozzle 17. Supplied. As a result, the air blown out from the nozzle 17 causes the fan 13 and the rotary shaft 7 to rotate integrally, and the air blown out from the air blowout hole 9 of the air blowout pipe 10 rotating together with the rotary shaft 7 becomes a vortex flow. The flow of air blown from the fan 13 is superposed to form a strong vortex, so that the air is blown evenly to the workpiece 26. Therefore, the chips and cutting oil adhering to the workpiece 26 are efficiently removed by the air.

In this embodiment, the air blown from the nozzle 17 is used to rotate the fan 13 and the rotary shaft 7. However, an external power source such as a motor and the rotary shaft 7 are connected by a belt transmission mechanism or gears. However, the rotating shaft 7 may be rotated by the external power source.

FIG. 4 shows another embodiment of the present invention.

In the present embodiment, the number of branches of the branch pipe 21 is increased, air is guided to the nozzle 17a by the pipe lines 27, 28, 29, and air is blown from the nozzle 17a to the side surface of the workpiece 26. It was done.

Further, in the present embodiment, the air pressure adjusting device 30 and the branch pipe 31 are provided between the directional control valve 20 and the filter 19, and a pipe line branched and extended from the branch pipe 31 is provided. A pneumatic cylinder device 33 is connected to 32. The pneumatic cylinder device 33 selectively communicates the pipe line 22 with the two working chambers 37 and 38 of the cylinder 36 via the direction control valve 34 and the flow rate control valve 35 to reciprocate the cylinder 36. is there. Although the directional control valve 34 closes the conduit 32 in the off state of FIG. 4, when it is turned on and moves to the left side in the drawing, the directional control valve 34 moves the conduit 32 to the upper working chamber 37 of the cylinder 36 in the drawing. The lower working chamber 38 of the cylinder 36 in the drawing is opened to the atmosphere. On the other hand, when the directional control valve 34 is turned on and moves to the right side in the drawing, the pipe 32 communicates with the lower working chamber 38 of the cylinder 36 in the drawing, and the upper working chamber 37 of the cylinder 36 in the drawing is opened to the atmosphere. Suru

As described above, according to this embodiment, air can be blown to the work piece 26 from multiple directions as compared with the above-mentioned embodiment, so that the chips and cutting oil attached to the work piece 26 can be more efficiently. Etc. can be removed. Further, according to this embodiment, the compressor 18 can be shared with the pneumatic cylinder device 33 and other pneumatic devices, and the air blow device 1 and the pneumatic cylinder device 33 etc. can be operated simultaneously or separately. You can

In addition to the removal of the cutting chips and the like adhering to the workpiece 26, each of the above-described embodiments has a wide range of applications such as the case where hot air is blown onto the surface of the article to efficiently dry the coating applied to the article. Applicable to fields.

[0022]

[Effect of the device]

 As is apparent from the above description, the present invention installs an air blowout tube having a plurality of air blowout holes on the rotary shaft, and also installs a fan for blowing air from the back of the air blowout tube. Since it is connected to the supply source, when the rotating shaft rotates, the air blow-out pipe and fan rotate, and the air blown out from the multiple air blow-out holes of the air blow-off pipe becomes a vortex, and the flow of air blown from the fan Are superimposed on each other to form a strong vortex. Therefore, when using the air blowing device of the present invention to remove the chips and cutting oil that have adhered to the work piece, it is possible to blow air evenly onto the work piece, and the chips that adhere to the work piece can be blown. It is possible to more efficiently remove cutting oil and cutting oil.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of an air blowing portion of an air blowing device of the present invention.

FIG. 2 is a plan view of the air blowing section of FIG.

FIG. 3 is a configuration diagram showing an embodiment of an air blow device of the present invention.

FIG. 4 is a configuration diagram showing another embodiment of the air blowing device of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Air blow device, 7 ... Rotating shaft, 9 ... Air blowing hole, 10 ... Air blowing tube, 13 ... Fan, 18 ... Air supply source (compressor).

Claims (1)

[Claims for utility model registration] [Claim 1] An air blowing pipe having a plurality of air blowing holes is attached to a rotary shaft, and a fan for blowing air from the back of the air blowing pipe is attached to the air blowing pipe. An air blower characterized by being connected to an air supply source.