TWI406713B - Gas pressure gun device - Google Patents

Abstract

The present invention relates to a gas pressure gun device for blowing a workpiece. The gas pressure gun device includes a gas pressure gun and a magnetic valve. The magnetic valve connects a gas source and the gas pressure gun by a gas-supply pipe. The gas pressure gun device also includes a photoelectric switch. The photoelectric switch uses to sense the workpiece in order to control the magnetic valve. When the photoelectric switch doesn't sense the workpiece, the gas pressure gun stops blowing. The gas pressure gun device may save the gas source and decrease harm to the health of workers.

Description

Air gun equipment

The present invention relates to a wind gun apparatus.

The use of air guns in the industry is very high, and it is used to remove dust, impurities and the like on the surface of various appliances and workpieces. The air gun mainly uses the high-speed jet of compressed air to generate a powerful blowing force to remove dust and impurities. The cleaning speed is fast and the use is extremely convenient.

However, the conventional air gun is directly connected to the air source by the air duct, so when the air gun is working, it is in a normally open state. Since there is no automatic switching function, when a workpiece is blown, the air gun still makes a jet, which will cause a serious waste of the air source. In addition, due to the harsh rustling of the air gun during the jet, the noise in the workplace is seriously exceeded, which can have a serious impact on the health of the staff, resulting in a decrease in work efficiency.

In view of this, it is necessary to provide a wind gun device with an automatic switching function that can control the jet.

A wind gun device for blowing a workpiece, the air gun device comprising a wind gun and a solenoid valve, wherein the electromagnetic valve is connected to a gas source, and the air gun is connected to the air gun by an air duct The gun apparatus also includes a photoelectric switch for sensing the workpiece and connecting the solenoid valve to control the closing and opening of the solenoid valve.

Compared with the prior art, the air gun device equipped with the photoelectric switch of the present invention can blow the photoelectric switch when it senses the workpiece, and when the workpiece is not sensed, the air gun device stops the air jet. The wind Gun equipment saves air, reduces costs, and reduces the risk of noise to workers.

10‧‧‧Air gun equipment

20‧‧‧Air Gun

201‧‧‧Base

2012‧‧‧ Department of Maintenance

2013‧‧‧ bottom wall

2015‧‧‧ Groove

2016‧‧‧ Magnet

2018‧‧‧ side wall

202‧‧‧ grip

2022‧‧‧Connecting wall

2024‧‧‧ side wall

2026‧‧‧ Groove

203‧‧‧Air head

2032‧‧‧ head

2034‧‧‧Fixed Department

2036‧‧‧through hole

204‧‧‧ fixed cylinder

205‧‧‧ Positioning block

2052‧‧‧ first surface

2054‧‧‧through hole

30‧‧‧ photoelectric switch

302‧‧‧Induction Department

304‧‧‧Transmission line

40‧‧‧Control box

402‧‧‧Intermediate relay

404‧‧‧Time relay

50‧‧‧ solenoid valve

504‧‧‧ Vents

60‧‧‧ gas source

70‧‧‧ catheter

80‧‧‧Locating pin

90‧‧‧ screws

1 is a perspective view of a wind gun of a preferred embodiment of the present invention; FIG. 2 is a perspective view of a wind gun apparatus according to a preferred embodiment of the present invention; FIG. 3 is a preferred embodiment of the present invention. A schematic block diagram of the working principle of the wind gun equipment.

The present invention provides a wind gun apparatus, the preferred embodiment of which is illustrated by blowing a workpiece as an example.

Referring to FIG. 1 and FIG. 2 together, the air gun device 10 includes a wind gun 20, a photoelectric switch 30, a control box 40, a solenoid valve 50 and a gas source 60.

The air gun 20 includes a base 201, a grip portion 202, a jet head 203, a fixed barrel 204, a positioning block 205, and an air guiding tube 206.

The base 201 includes a grip portion 2012 and a magnet 2016. The holding portion 2012 is formed by bending a substantially rectangular sheet-like body to form a frame having a cross-sectional "ㄩ" shape. The holding portion 2012 includes a bottom wall 2013 and two mutually parallel side walls 2018. The two side walls 2018 extend in a direction perpendicular to the bottom wall 2013, and the bottom wall 2013 and the two side walls 2018 together form a groove 2015. A through hole (not shown) is defined in each of the two side walls 2018, and the positions of the two through holes correspond to each other. The magnet 2016 is fixed to the bottom wall 2013 of the grip portion 2012.

The holding portion 202 includes a connecting wall 2022 and two mutually parallel side walls 2024. The connecting wall 2022 is connected to the two side walls 2024. The connecting wall 2022 and the two side walls 2024 jointly define a recess 2026. The width of the connecting wall 2022 is smaller than the width of the bottom wall 2013 so that the grip portion 202 can be received in the recess 2015 of the grip portion 2012. Two through holes (not shown) are respectively formed at two ends of the two side walls 2024, and the through holes of one side wall 2024 are in one-to-one correspondence with the through holes of the other side wall 2024.

Referring to FIG. 1 again, the air jet head 203 includes a head portion 2032 and a fixing portion 2034. The head 2032 is generally in the shape of a tapered tubular structure. The fixing portion 2034 is substantially a rectangular block disposed at one end of the head portion 2032. A threaded hole (not shown) is respectively defined on the opposite surfaces of the fixing portion 2034, and the two threaded holes correspond to each other. A through hole 2036 is formed in a surface perpendicular to the two surfaces, and the through hole 2036 extends through the air jet head 203.

The fixing cylinder 204 is a cylindrical cylindrical structure that is fixed to one surface of the fixing portion 2034.

Referring to FIG. 2, the positioning block 205 is a rectangular body, and includes a first surface 2052. The first surface 2052 defines a through hole 2054. The positioning block 205 can be fixed between the two side walls 2018 of the holding portion 2012.

The air guiding tube 206 can be received in the recess 20 of the base 201 and the recess 2026 of the grip portion 202. One end of the air guiding tube 206 can be connected to the through hole 2036 of the air jet head 203.

The photoelectric switch 30 is a reflective photoelectric switch comprising a sensing portion 302 and a conductive line 304 connected thereto. The sensing portion 302 can be received in the fixed cylinder 204 for sensing a workpiece to generate an inductive signal, and the conductive line 304 is configured to transmit an inductive signal.

Referring to FIG. 2 and FIG. 3, the control box 40 is an iron box. The air gun 20 can be fixed to the control box 40 by a magnet 2016. The control box 40 includes an intermediate relay 402 and a time relay 404.

The intermediate relay 402 has the function of relay control and signal transmission, and transmits the sensing signal of the photoelectric switch to the time relay 404.

The time relay 404 is coupled to an intermediate relay 402 that has a delayed on-off function for controlling the time during which the solenoid valve 50 is continuously open.

The solenoid valve 50 is disposed outside the control box 40 and is electrically connected to the time relay 404. The solenoid valve The 50 includes an air inlet (not shown) and an air outlet 504. The air duct 206 can be coupled to the air outlet 504, and a conduit 70 can be coupled to the air inlet. The solenoid valve 50 includes an electromagnetic coil (not shown) and a valve (not shown). When the solenoid valve 50 is energized, the electromagnetic coil generates electromagnetic force to open the valve; when the power is off, the electromagnetic force disappears and the valve is closed.

The gas source 60 can be coupled to the conduit 70 to provide gas for the air gun 20 to blow the workpiece.

Referring to FIG. 1 , when the air gun device 10 is assembled, one end of the grip portion 202 is first received in the recess 2015 of the base 201 , and the through hole and the second side of the positioning pin 80 and the side wall 2018 of the base 201 are held. The through hole at one end of the side wall 2024 of the portion 202 cooperates to fix the grip portion 202 to the base 201. The fixing portion 2034 of the air jet head 203 is partially received in the recess 2026 of the grip portion 202, and the two screws 90 cooperate with the through holes of the other end of the side wall 2024 of the grip portion 202 and the screw holes of the fixing portion 2034. The air jet head 203 is fixed to the grip portion 202. Subsequently, one end of the air guiding tube 206 is connected to the through hole 2036 of the fixing portion 2034. The sensing portion 302 of the photoelectric switch 30 is then fixed in the fixed barrel 204. The air tube 206 and the conductive wire 304 are then passed through the recesses 2026 and 2015 of the grip portion 202 and the base 201, and are respectively connected to the air outlet 504 of the solenoid valve 50 and the intermediate relay 404 inside the control box 40. Finally, the gas source 60 is connected to the intake hole of the solenoid valve 50 by a conduit 70.

Now, taking the time delay set by the time relay 404 as 3 seconds as an example, the process of blowing the workpiece by the air gun device 10 will be described. When the power is turned on and the air gun device 10 is used for blowing, if the photoelectric switch 30 senses the workpiece, the photoelectric switch 30 generates an inductive signal, and the sensing signal is transmitted from the conductive line 304 to the intermediate relay in the control box 40. 402, the intermediate relay 402 is turned on, and then the intermediate relay 402 triggers the time relay 404 to operate, so that the valve of the electromagnetic valve 50 is controlled to be continuously turned on by the time relay 404 for 3 seconds, so that the gas of the gas source 60 can be used within 3 seconds. The valve of the solenoid valve 50 causes the gas to be ejected from the air gun 20 through the air duct 206 to blow the workpiece. After 3 seconds, if the photoelectric switch 30 does not sense the workpiece, the photoelectric switch 30 cannot generate the sensing signal, so the intermediate relay 402 and the time relay 404 cannot be triggered, and the valve of the electromagnetic valve 50 at this time When closed, the gas of the gas source 60 cannot pass through the solenoid valve 50, and the air gun 20 cannot be jetted. If a workpiece is still sensed, the air gun 20 continues to eject air to blow the workpiece. When the work is stopped, the air gun 20 can be fixed to the control box 40 by the magnet 2016.

Since the air gun device is provided with a photoelectric switch, only when the photoelectric switch senses a workpiece, the air jet blows the workpiece, thereby reducing waste of the air source and reducing the noise duration of the air gun when the air is blown.

It can be understood that the intermediate relay in the control box of the air gun device can be omitted, and the time relay is directly triggered by the photoelectric switch.

It can be understood that the photoelectric switch of the air gun device can be directly connected with the solenoid valve, and the photoelectric switch controls the switch of the electromagnetic valve. When the photoelectric switch senses the workpiece, the valve of the solenoid valve is always opened, and the gas of the gas source passes through the valve and is ejected from the air gun; when the photoelectric switch does not sense the workpiece, the valve of the solenoid valve is closed, and the air gun stops the jet.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in accordance with the spirit of the present invention are It should be covered by the following patent application.

201‧‧‧Base

2012‧‧‧ Department of Maintenance

2013‧‧‧ bottom wall

2015‧‧‧ Groove

2016‧‧‧ Magnet

2018‧‧‧ side wall

2024‧‧‧ side wall

2026‧‧‧ Groove

203‧‧‧Air head

2032‧‧‧ head

2034‧‧‧Fixed Department

2036‧‧‧through hole

204‧‧‧ fixed cylinder

2052‧‧‧ first surface

2054‧‧‧through hole

30‧‧‧ photoelectric switch

302‧‧‧Induction Department

304‧‧‧Transmission line

80‧‧‧Locating pin

90‧‧‧ screws

Claims (10)

A wind gun device for blowing a workpiece, the air gun device comprising a wind gun and a solenoid valve, wherein the electromagnetic valve is connected to a gas source, and is connected to the air gun by an air guiding tube, and the improved The air gun device further includes a photoelectric switch and a time relay. The time relay is connected to the electromagnetic valve and the photoelectric switch. The photoelectric switch is used for sensing the workpiece and generating an induction signal to directly trigger the time relay, so that the time relay controls the electromagnetic Valve closing and opening time. The air gun apparatus of claim 1, wherein the air gun apparatus further comprises a control box, and the photoelectric switch is connected to the electromagnetic valve by the control box. The air gun device of claim 2, wherein the photoelectric switch comprises a sensing portion and a conductive line connected thereto, the sensing portion is disposed on the air gun, and the conductive line is connected to the control box. The air gun apparatus of claim 3, wherein the air gun comprises a jet head, the air head comprising a head and a fixing portion, the head is a tubular structure, and the fixing portion is disposed on the head One end of the department. The wind gun apparatus of claim 4, wherein the fixed portion of the air jet head is provided with a fixed cylinder, and the sensing portion of the photoelectric switch is disposed in the fixed cylinder. The air gun apparatus of claim 3, wherein the time relay is included in the control box. The wind gun apparatus of claim 6, wherein the control box further comprises an intermediate relay connected to the time relay by the intermediate relay. The air gun apparatus of claim 1, wherein the electromagnetic valve includes an air inlet hole and an air outlet hole, and the air gun is connected to the air outlet hole by the air pipe, and the air source is connected to the air source. On the vent. The air gun apparatus of claim 2, wherein the control box is made of metal iron. The air gun apparatus of claim 9, wherein the air gun further comprises a magnet for adsorbing the air gun to the control box by the magnet.