KR20020062011A - Auto ignition gas cutter - Google Patents

Abstract

PURPOSE: An automatic ignition type gas cutter is provided to generate flame having a predetermined size by opening or closing an oxygen feeding valve installed in a handle using a hand or a lever. CONSTITUTION: A high pressurized oxygen feeding pipe(20) and a mixing gas feeding pipe(21) are separately provided between a handle(3) and a head unit(10). An oxygen gas mixing apparatus(30) is installed in the handle(3) in order to mix oxygen and gas and to supply the mixture into the mixing gas feeding pipe(21). An ignition button for operating a piezoelectric device(32) is exposed to an upper end of the handle(3). An oxygen feeding valve(45) is provided in a valve frame(4) to intermittently supply oxygen through an oxygen rate control valve(5). An operating device for operating the oxygen feeding valve(45) is formed at an upper portion or a lower portion of the handle(3).

Description

Auto ignition gas cutter

The present invention relates to an automatic ignition gas cutting machine used to cut a metal object to be cut, such as an iron plate.

In more detail, in order to generate a spark while releasing a mixed gas mixed with oxygen and supplied gas through the tip, an oxygen amount control valve is provided inside the valve assembly provided on the rear of the handle. It is possible to supply the amount of oxygen required to cut the cutting, but it can be controlled by a valve or lever provided on the upper side of the handle, and the tip of the handle is provided with an ignition button to easily ignite the flame, capacity and characteristics It is to provide an automatic ignition gas cutting device formed by differently supplying the supply structure of oxygen and gas supplied according to.

The present invention is to provide an automatic ignition gas cutting device by further improving the automatic ignition gas cutting device pre-registered and registered by the person.

Conventional gas cutters, which are commonly used, are not equipped with a device that can automatically ignite the sparks, so there was a great risk when igniting the sparks. In other words, the conventional gas cutting machine does not have a device for igniting the flame, so when igniting the flame, the ignition of the flame was generally ignited by using a separate ignition tool such as a matcher, an industrial lighter, etc. Use the tool to ignite the ignition first, operate the oxygen supply valve and the gas supply valve to release the mixed gas from the tip, and bring the spark of the ignition close to the tip, and then discharge the mixture through the tip by the spark of the ignition. The gas was ignited to produce a powerful spark.

The conventional gas cutting machine, which is intended to ignite the flame by a manual (man-made) method, has the inconvenience of carrying a separate ignition mechanism, and when sparking the mixed gas generated at the tip, the ignition flame It is not easy to properly adjust the amount of the mixed gas discharged because the mixed gas must be ejected while approaching the tip, and there was a problem of frequent safety accidents such as burns during the ignition process. .

In order to solve such a problem of the conventional gas cutting machine, I have proposed an automatic ignition gas cutting machine, which was previously registered as Utility Model Registration No. 40791 and Patent No. 226322.

The automatic ignition gas cutting machine proposed by Utility Model Registration No. 40791 is able to automatically ignite the flame in the gas cutting machine by automatically generating a pre-ignition spark by operating the operating lever. Since it was not possible to easily operate the operating lever with one hand, there was a hassle to operate the operating lever with the other hand while holding the handle with one hand. Since the valve and the oxygen supply valve must be operated, there was a problem that the ignition operation cannot be easily performed. In addition, the ignition gas is supplied while the nozzle is lifted by the opposite side that is raised when the one side of the actuating lever installed in the shaft is pressed to operate the piezoelectric element, but the supply amount of the ignition gas cannot be adjusted. Since the high voltage generated by the piezoelectric element is not leaked there was also a problem that the ignition is not smoothly performed.

In order to solve such a problem, the improved automatic ignition gas cutter of Patent No. 22632 is designed to operate the ignition button with the thumb of the hand holding the handle, so that the ignition can be performed more easily. In order to make it easy to operate the ignition button, there is a closed end that needs to be gripped with the hand twisted inward so that the palm closes to the back of the handle. There was a hassle to hold and correct correctly.

The present invention is to provide a more improved automatic ignition gas cutting device to solve the above problems.

The present invention allows the gas and oxygen introduced through the gas supply port and the oxygen supply port provided at the rear end of the handle to be discharged through the tip of the head bracket provided at the front end of the handle by the gas supply pipe and the oxygen supply pipe, It is provided with a piezoelectric element (high voltage generator) and a gas distribution device for distributing the gas to be supplied and generating an ignition spark at the same time. The button for operating the piezoelectric element is provided at the tip of the handle. The handle is provided with a handle or a lever to operate an oxygen supply valve mounted on the inside of the handle, at the top front or the rear of the handle, and for sparking when oxygen or gas is supplied from the handle to the head bracket equipped with the tip. Silver is mixed and supplied for ignition, depending on the capacity and characteristics of the gas cutter. To provide an auto-ignition gas cutting device hayeoseo formed properly.

Another object of the present invention is to set the open state of the oxygen supply valve mounted inside the handle by hand or lever, so that the automatic ignition gas cutting can always generate a certain size of flame when using the gas cutter To provide a device.

Still another object of the present invention is to provide an automatic ignition gas cutting device capable of more efficiently mixing and supplying a mixed gas of oxygen and gas supplied from the handle to the tip of the head bracket.

Another object of the present invention is to provide a different path depending on the capacity and use of the gas cutter when the oxygen and gas for ignition from the handle to the ignition gas injection nozzle of the head bracket, but the capacity of the gas cutter is small In this case, the mixed gas pipe can supply the mixed gas mixed with oxygen and gas, and in the case of large capacity, it moves to the head bracket with oxygen and gas separated to ensure safety, and then to the ignition gas injection nozzle. To provide an automatic ignition gas cutting device that can be supplied.

The above object of the present invention,

At the bottom of the handle 3, an oxygen supply valve 5, an oxygen supply port 7, and a valve assembly frame 4 provided with a gas supply control valve 6 and a gas supply port 8 are integrally provided. Oxygen and gas are supplied through the sphere 7 and the gas supply port 8 and the oxygen and gas supplied can be controlled by the oxygen amount regulating valve 5 and the gas amount regulating valve 7, and the handle 3. Oxygen and gas supplied to the inside of the head is supplied to the head bracket 10 through the oxygen supply pipe and the gas supply pipe and can be mixed and discharged through the tip 11 provided in the head bracket 10, the handle ( The inside of the 3) is provided with a piezoelectric element 32 to be operated by the ignition button 50 provided on the outside of the handle (3) and the ignition unit provided in the piezoelectric element 52 and the head bracket 10 When the piezoelectric element 52 is operated by connecting the ignition pin 19 of the (9) with the electric wire 24, the ignition pin provided in the head bracket 10 ( 19) The spark is generated between the super-ignition coil 16, and when the ignition button 50 is operated, a part of the gas introduced into the handle 3 is distributed, and the head bracket (through the mixed gas supply pipe) In the supply to the ignition gas injection nozzle (15) mounted on 10) is to be ignited by a spark generated between the ignition pin 19 and the ignition coil (16),

Between the handle 3 and the head bracket 10, a cutting high pressure oxygen supply pipe 20 for supplying exclusive oxygen for cutting and a cutting mixed gas supply pipe 21 for supplying a mixed gas used for ignition are separately provided. And

The inside of the handle 3 is provided with an oxygen gas mixing device 30 which mixes oxygen and gas and supplies it to the cutting gas supply pipe 21 for cutting,

An ignition button 50 for activating the piezoelectric element 32 to be exposed at the upper end of the handle 3,

An oxygen supply valve 45 is provided inside the valve assembly 4 to control the oxygen supplied to the cutting oxygen via the oxygen amount control valve 5, and on the upper side or the lower side of the back of the handle 3. Having an operating means for operating the oxygen supply valve 45;

Achieved by the automatic ignition gas cutter (1) characterized by supplying to the ignition gas injection nozzle (15) of the head bracket (10) in a state in which the spark generating oxygen and gas supplied from the handle (3) are separated. do.

1A and 1B are front and side cross-sectional views showing the structure of an autoignition gas cutting machine according to the present invention.

Figure 2a and Figure 2b is a side cross-sectional view and a longitudinal sectional view showing an extracting oxygen amount control device in the automatic ignition gas cutting machine according to the present invention.

Figure 3 is an excerpt of the main part showing the combined state of the gas supply pipe and oxygen supply pipe in the automatic ignition gas cutting machine according to the present invention.

Figure 4 is a cross-sectional view showing an extraction state of the ignition button in the automatic ignition gas cutting machine according to the present invention.

5 is a front view showing another embodiment of the auto-ignition gas cutting machine according to the present invention.

6a to 6c are cross-sectional views, shear sectional views and handles of the autoignition gas cutting machine according to the invention illustrated in FIG.

Explanation of symbols on the main parts of the drawings

1.1-1. Automatic ignition gas cutter 2. Handle 3. Handle

4. Valve assembly frame 5. Oxygen valve 6. Gas valve

7. Oxygen supply port 8. Gas supply port 9. Ignition part

10.Head 11.Tip 12.Oxygen Supply Hole

13. Gas supply hole 14. Nozzle mounting chamber 15. Ignition gas spray nozzle

16. Ignition coil 19. Ignition pin

20. Cutting high pressure oxygen supply pipe 21. Cutting mixed gas supply pipe

22. Protective support pipe 30. Oxygen gas mixing device

31. Connector bundle 33. Gas supply nozzle 35. Gas inlet room

40. Cutting oxygen control valve 42. Lever 44. Rod

45. Oxygen supply valve 46. Cut oxygen control valve

50. Ignition button 51. Push bar 52. Piezoelectric element

63. Oxygen supply hole for ignition 64. Gas supply pipe for ignition 65. Oxygen blocking bolt

66. Oxygen regulating valve for ignition

The above objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

Figures 1a to 6c shows a specific embodiment of the automatic ignition gas cutting machine (1) (1-1) according to the present invention, Figures 1a and 1b is an automatic ignition gas cutting machine (1) according to the present invention 2A and 2B are front and cross sectional views showing an operation means for supplying cutting-only oxygen, and FIG. 3 shows oxygen and a gas so as to supply a mixed gas for flame generation. 4 is a front sectional view showing the structure of the oxygen gas mixing device 30 for mixing the gas, and FIGS. 4A and 4B are a front sectional view and a longitudinal sectional view showing the structure of the ignition device. In addition, Figures 5 to 6c is a cross-sectional view and a cross-sectional view and a cross-sectional view showing an extract of the front view and the head bracket showing another embodiment of the automatic ignition gas cutting device (1-1) according to the present invention.

The automatic ignition gas cutter 1 according to the present invention illustrated in FIGS. 1A and 1B shows a small gas cutter, and the head bracket 10 provided on the upper side of the handle part 2 supplies oxygen and gas. It was connected to the cutting high pressure oxygen supply pipe 20, the cutting mixed gas supply pipe 21 and the protective support pipe 22 so that.

In the lower valve bundle frame 4, the oxygen amount control valve 5 and the oxygen supply port 7 and the gas amount control valve 6 and the gas supply port 8 were formed integrally on the same vertical line, respectively. The inside of the mold 4 is equipped with a normal oxygen supply valve 45 which is configured to open and close a normal valve.

On the upper side of the valve assembly frame 4, a handle 3 having an interior space is integrally mounted. The upper end of the handle 3 is inserted and fixed to the connector bundle frame 31 as shown in Figures 2a, 3, 4a, but inside the oxygen gas mixing device 30 and oxygen which will be described in detail later It is provided with an operating device for operating the supply valve 45, and an ignition device for generating an ignition spark, the connector assembly frame 31 and the valve assembly frame 4 is cut to be connected to the oxygen supply valve 45 Oxygen and gas are connected by connecting to the oxygen supply pipe 7-1, the ignition oxygen supply pipe 7-2 connected to the oxygen supply port 7, and the gas supply pipe 8-1 connected to the gas supply port 8, respectively. It could be supplied.

The space 32 of the connector frame 31 is provided with an operating device for operating the oxygen supply valve 45 as shown in Figures 2a and 2b, the space of the connector frame (31) ( 32, the lever 42 is rotatably installed on the shaft 43, and the cut oxygen amount control valve 40 is rotatably installed on the back portion of the handle 3 in which the lever 42 is located. Ascending and descending bar 41 was to press the upper surface of the cut oxygen amount control valve 40, the lower end of the lever 42 was provided with a rod 44 to operate the oxygen supply valve 45.

In addition, an oxygen gas mixing device 30 is provided at the center of the connector bundle frame 31 to mix oxygen and gas and supply the mixed gas supply pipe 21 for cutting, as shown in FIG. 3. The oxygen gas mixing device 30 forms a gas inlet chamber 35 in the center of the connector bundle frame 31 and communicates with the gas supply pipe 8-1 by the gas supply hole 34. The gas supply nozzle 33 fixed to the discharge end of the ignition oxygen supply pipe 7-2 is inserted into the inlet of the ignition oxygen supply pipe 35, and the injection fitting 36 to which the mixed gas supply pipe 21 for cutting is inserted is inserted into the outlet. It was. In particular, the gas supply nozzle 33 has a sharp tip, and the inner surface of the injection fitting 36 is formed with an inclined surface extending to both sides with respect to the center so that oxygen and gas can be mixed more quickly and easily. .

In addition, one side of the connector assembly frame 31 is provided with a conventional ignition device as shown in Figs. 4a and 4b. The push bar insertion hole 31-1 is drilled in the connector bundle frame 31 so that the push bar 51 is inserted into the push bar 51 located in the space 32 of the connector bundle frame 31. Fixing the 53 and inserting the spring 54 to the lower side of the push piece 53 to push the push bar 51 upward, the support ring 55 and the sealing ring 56 below the spring 54 ), The upper part of the push bar 51 exposed to the upper side of the connector bundle frame 31 is provided with a large ignition button 50 so that it can be easily pushed, provided at the bottom of the push bar 51 The piezoelectric element 52 is connected to the wire 24 to pass through the wire discharge hole 26 and to pass through the protective support tube 22 described later.

In particular, the insertion hole 31 of the connector frame 31 has an oxygen supply hole 59 connected to the gas supply hole 58 and the ignition oxygen supply pipe 7-2 connected to the gas supply pipe 8-1, and Drill the mixed gas discharge hole 60 connected to the ignition mixed gas supply pipe 23 at equal intervals, and the push bar 51 has a gas supply hole 58, oxygen supply hole 59, oxygen supply hole 59 Between each of the and the gas supply hole 58 and the outer side of the mixed gas discharge hole 60 is provided with a sealing ring 61 to mix the incoming oxygen and gas, respectively, so as not to leak the ignition gas injection nozzle ( 15) to be supplied.

The upper end of the handle 3 configured as described above is a mixed gas for ignition in communication with the oxygen supply pipe 20 for cutting and the injection tool 36 of the oxygen gas mixing device 30 connected to the oxygen supply valve 45. The supply pipe 21, the ignition mixed gas supply pipe 23 to be inserted, and the protective support pipe 22 for protecting the electric wire 24 were provided in a line.

In the head fitting 10 into which the cutting high pressure oxygen supply pipe 20, the well-end mixed gas supply pipe 21, and the protective support pipe 22 are inserted and fixed, a normal tip 11 is mounted, but the oxygen supply for cutting is supplied. The ball 12 communicates with the cutting high pressure oxygen supply pipe 20 to supply cutting oxygen to the tip 11, and the mixed gas supply hole 13 cuts the mixed gas supply pipe 21. It was in communication with the gas so that the mixed gas can be supplied to the tip (11). An ignition gas injection nozzle 15 having an ignition coil 16 fixed to the tip is coupled to the nozzle mounting chamber 14 to which the nozzle cap 14-1 is coupled, and for ignition protected by a protective support pipe 22. The mixed gas supply pipe 23 allows the mixed gas to be supplied to the ignition gas injection nozzle 15 and the nozzle mounting chamber 14 through the mixed gas supply holes 17 and 18, and the wire 24 is equipped with a nozzle. It was connected to the ignition pin 19 exposed to the seal 14 and the voltage was not leaked by the ceramic ring 19-1.

5 to 6c show another embodiment of the automatic ignition gas cutter 1-1 according to the present invention, and the head bracket 10 in a state in which the ignition and spark generation oxygen and gas are separated without mixing. It is characterized by supplying up to, and is generally applied to a gas cutter with a large capacity.

The handle 3 of the handle portion 2 and the valve bundle frame 4 coupled to the lower side is formed in the same structure as described in Figures 1 to 2b, but is supplied in a state in which oxygen and gas are separated As shown in FIG. 3, the oxygen gas mixing device 30 installed inside the handle 3 is omitted.

The head 11 is provided with the tip 11 and the cutting high-pressure oxygen inlet pipe 20 and the like are formed as shown in FIGS. 5 and 6A and 6B.

As shown in FIG. 6A, one side surface of the head 10 includes a tip mounting chamber 10-4 from the outside to the inside on the same line so that the tip 11 can be mounted thereon, and a cutting gas inlet chamber 10-3. ), The cut oxygen inlet chamber 10-2 and the high pressure oxygen inlet chamber 10-1 for cutting are formed in order to communicate with each other, but gradually decrease in diameter.

The inner circumferential surface of the tip mounting chamber 10-4 is provided with a screw so that the binding nut 11-1 fitted to the outside of the tip 11 can be easily screwed, and the cutting gas inlet chamber 10 is provided. -3) and the cutting oxygen inlet chamber 10-2 and the cutting high pressure oxygen inlet chamber 10-1, the gas supply hole 13-2 and the oxygen supply hole 13-1 and the cutting high pressure gas supply hole. (12) are drilled so as to face the handle (3), respectively, to insert and fix the cutting oxygen supply pipe (21-1), cutting gas supply pipe (21-2) and cutting high-pressure oxygen inlet pipe (20), respectively. To make it possible.

In addition, a nozzle mounting chamber 14 is formed at the lower side of the tip tip mounting chamber 10-4 to fix the nozzle cap 14-1 at the front end, and an ignition gas injection nozzle 15 is mounted on the inner surface thereof, and an ignition oxygen inlet pipe The ignition oxygen discharge hole 17-1 to which the 23-2 is connected and the ignition gas discharge hole 17-2 to which the ignition gas inlet pipe 23-1 is connected are drilled, respectively. And the ignition gas can be supplied (discharged) to the ignition gas injection nozzle 15 and the nozzle mounting chamber 14, and the front of the ignition gas injection nozzle 15 is sealed by a ceramic ring 19-1. It was provided with an ignition pin 19 to prevent the leakage of the voltage was connected to the wire 24.

As illustrated in FIG. 6C, the connector bundle frame 31 mounted inside the handle 3 drills an oxygen distribution hole 31-2 and a gas distribution hole 31-3 in parallel to the oxygen distribution hole. The oxygen supply pipe 21-1 and the oxygen supply pipe 7-1 for cutting are coupled to the upper and lower sides of the 31-2, and the gas supply pipe for cutting is provided on the upper and lower sides of the gas distribution hole 31-3. 21-2 and the gas supply pipe 8-1 were connected in communication with each other.

The oxygen distribution hole 31-2 and the gas distribution hole 31-1 are push rod insertion holes by the ignition oxygen supply hole 66-1 and the ignition gas distribution hole 65-1 spaced apart from each other. (31-1) is connected with each other, the connector frame 31 on the same horizontal line as the ignition oxygen supply hole (66-1) by screwing the ignition oxygen control valve (66) with a sharp tip at the handle (3) can be easily adjusted through the adjustment hole (66-2) formed, in particular when the gas distribution hole (31-3) to be drilled to communicate with each other from the outside of the oxygen distribution hole (31-2) In the connector bundle frame 31 on the same horizontal line as the ignition gas inlet hole 65-1, the gas passing through the gas distribution hole 31-3 is screwed to the oxygen blocking bolt 65 to be hermetically sealed and the oxygen distribution hole 31 -2) to prevent entry.

In addition, the push rod insertion hole (31-1) drilled in the connector frame (31) is inserted into the push bar 51 for operating the piezoelectric element 52, washer 62, 62-1 and O-ring 56 ) And 61 were repeatedly provided to maintain the sealed state, and the push bars 51 positioned inside the washer 62 were somewhat thinned to the thin rods 51-1 and 51-2, respectively. The ignition gas inlet pipe 23-1 and the ignition oxygen inlet pipe 23-2 were connected to washers 62 and 62-1 located at the outside. Insert the support ring 55, the spring 54, and the pressing piece 53 sequentially exposed to the upper side of the connector bundle frame 31, and fix the pressing piece 53 to the upper end of the push bar 51 so that the ignition button 50 Formed).

The actuating means for operating the oxygen supply valve 45 mounted inside the valve assembly frame 4 is provided with the cutting oxygen amount adjusting lever 46 rotatably on the shaft 47 under the handle 3, The oxygen supply valve 45 can be operated by pushing the rod 44 formed by the support piece 46-1 of the cut oxygen amount adjusting lever 46 inserted into the handle 3.

The high pressure oxygen supply pipe 20 for cutting is connected to the oxygen supply valve 45 at the upper side of the handle 3, and the oxygen supply port 7 and the gas supply port 8 formed in the valve assembly frame 4 and The cutting oxygen supply pipe 21-1 and the cutting gas supply pipe 21-2 connected to each other are provided so that oxygen and gas used for spark generation can be supplied in a separated state, and the protective support pipe 22 is provided. The inside of the ignition oxygen inlet pipe (23-2) and the ignition gas inlet pipe (23-1) was built so that the oxygen and gas used for ignition can be supplied separately.

The operation relationship will be described below.

Although the automatic ignition gas cutting device (1), (1-1) according to the present invention is not specifically illustrated in the oxygen supply port (7) and the gas supply port (8), by connecting the oxygen supply pipe and the gas supply pipe, respectively, oxygen and Gas can be supplied to each.

The automatic ignition gas cutting device 1 illustrated in Figs. 1A to 4B is operated as follows.

In the state where oxygen and gas are supplied to the oxygen supply port 7 and the gas supply port 8 through the oxygen supply pipe and the gas supply pipe, the oxygen amount control valve 5 and the gas amount control valve 6 are rotated to Adjust the supply accordingly.

When oxygen and gas are supplied by rotating the oxygen amount control valve 5 and the gas amount control valve 6 as described above, oxygen and gas are mixed with the oxygen gas through the oxygen supply pipe 7-1 and the gas supply pipe 8-1. It is supplied to the device 30, the oxygen introduced into the oxygen supply nozzle 33 in the oxygen supply pipe 7-2 is injected into the gas inlet chamber 35 from the oxygen supply nozzle 33, the gas supply pipe (8-1) ) Is introduced into the gas inlet chamber (35) from the gas supply hole (34), and oxygen and gas injected or introduced into the gas inlet chamber (35) are mixed while being mixed while passing through the injection fitting (36). The mixed gas discharged into the gas supply pipe 21 and introduced into the mixed gas supply pipe 21 is supplied to the tip 11 through the mixed gas hole 12 of the head bracket 10.

As such, when the ignition button 30 is pressed while the handle 3 is gripped while the mixed gas of oxygen and gas is supplied to the tower 11, the push bar 51 retreats and the piezoelectric element 52 is retracted. The high voltage generated by the dark power element 52 is supplied to the ignition pin 19 of the ignition unit 9 through the wire 24 to generate a spark between the ignition coil 16. .

At the same time, when the push bar 51 retreats, the gas supplied to the gas supply hole 58 and the oxygen supplied to the oxygen supply hole 59 are mixed with each other while being discharged through the mixed gas discharge hole 60. It is supplied to the mixed gas supply pipe 23 for ignition via the gas hole 25, and the ignition gas injection nozzle 15 and the nozzle mounting chamber through the mixed gas supply holes 17 and 18 of the head bracket 10 ( 14).

Thus, the mixed gas is supplied to the ignition gas injection nozzle 15 and the nozzle mounting chamber 14 through the mixed gas supply holes 17 and 18 and at the same time between the ignition coil 16 and the ignition pin 19. When the spark is generated in the ignition gas injection nozzle 15 and the mixed gas supplied to the nozzle mounting chamber 14 is injected by the spark generated between the ignition coil 16 and the ignition pin 19 is ignited The flame is generated outside the nozzle cap 14-1.

When the spark for ignition discharged to the nozzle cap 14-1 of the ignition unit 9 is discharged as described above, the mixed gas discharged to the tip 11 through the mixed gas supply hole 13 is the ignition unit 9. It is ignited by the spark for ignition generated in the to generate a more powerful spark.

As such, when the mixed gas discharged to the tip 11 through the mixed gas hole 13 is ignited, a strong flame is generated at the tip 11 by adjusting the oxygen supply amount by rotating the oxygen content adjusting handle 4. After adjusting, perform cutting operation.

On the other hand, the automatic ignition gas cutting device 1-1 shown in Figs. 5 to 6b operates as follows. Of the oxygen and gas flowing into the oxygen supply port 7 and the gas supply port 8, a part of the oxygen flowing through the oxygen supply port 7 is the high pressure oxygen inlet pipe 20 for cutting the head bracket 10 The high pressure oxygen inlet 12 for cutting is supplied to the head bracket 10, and another part of the oxygen supply pipe 7-1, the oxygen distribution hole 31-2, and the cutting oxygen supply pipe 21-1 are provided. Via the oxygen supply hole (13-1) of the head bracket 10 is supplied to. On the other hand, the gas supplied through the gas supply port 8 is supplied to the head bracket 10 through the gas supply pipe 8-1, the gas distribution hole 31-1, and the cutting gas supply pipe 21-2. It is supplied to the tip 11 through the ball 13-2.

In addition, when oxygen and gas supplied through the oxygen supply port 7 and the gas supply port 8 pass through the oxygen distribution hole 31-2 and the gas distribution hole 31-3 of the connector bundle 31, A part of it keeps reaching the ignition oxygen inflow hole 66-1 and the ignition gas inflow hole 65-1.

When the ignition button 50 is pressed in this state, the piezoelectric element 52 is operated by the push bar 51 to generate a high voltage, and the generated high voltage is supplied to the head supply port 10 through the wire 24. The spark is emitted through the ignition pin 19 of the ignition unit 9 mounted on the spark ignition coil 16.

When the ignition button 5 is pressed as described above, the push bars 51 move and the thin rods 51-1 and 51-2 are ignition oxygen inlet holes 66-1 and ignition gas inlet holes ( 65-1), the thin rods 51-1, 51-2 of the push bar 51 are the oxygen inlet hole 66-1 for ignition and the gas inlet hole 65-1 for ignition. ), The oxygen and gas reaching the inlet of the ignition oxygen inlet hole 66-1 and the ignition gas inlet hole 65-1 are moved to the thin rods 51-1 and 51-2. The oxygen and gas introduced into the thin rods 51-1 and 51-2, respectively, are discharged through the ignition oxygen discharge hole 63 and the ignition gas discharge hole 64, respectively. Oxygen and gas discharged through the ignition oxygen discharge hole 63 and the ignition gas discharge hole 64 are inserted into the protective support pipe 22 and the gas supply pipe 23-1 and the gas supply pipe 23-. 2) The ignition gas injection nozzle 15 through the oxygen supply hole 17-1 and the gas supply hole 17-2 of the ignition part 9 formed in the head bracket 10 via the push bar 51. And oxygen and gas supplied to the inside of the nozzle mounting chamber 14, respectively, and supplied to the ignition gas injection nozzle 15 and the nozzle mounting chamber 14, respectively, in the nozzle mounting chamber 14.

In this way, when the mixed gas of oxygen and gas is discharged to the ignition gas injection nozzle 15 and the nozzle mounting chamber 14 and the spark is generated at the ignition pin 19, the mixed gas is ignited by the spark and the spark for ignition Is generated to the outside of the nozzle cap 14-1, and if an ignition flame is generated outside the nozzle cap 14-1, the oxygen supply pipe 23-1 and the gas supply pipe 23-2 are supplied. The cutting oxygen and the gas to be mixed is discharged through the tip 11 and is ignited by the ignition spark that is ejected to the outside of the nozzle cap 14-1 to generate a more powerful spark.

When pressing the cutting oxygen amount adjusting lever 46 mounted on the handle 3 in the state that the spark is generated in the tip 11, the support piece 46-1 pushes the rod 44 and the rod 44 is pressed. The oxygen supply valve 45 is operated by the 44 to supply oxygen, thereby generating a more powerful flame at the tip 11.

As described above, the automatic ignition gas cutting machine according to the present invention mixes or supplies oxygen and gas used for ignition and spark generation, or supplies them in a separated state, so that they can be appropriately adopted according to the capacity (size) and use. When mixing and supplying oxygen and gas for flame generation, it is possible to improve the thermal power by mixing while spraying. When operating the ignition button, the oxygen and gas used for ignition are supplied while preventing leakage. It can be used safely.

Claims (10)

At the bottom of the handle 3, an oxygen supply valve 5, an oxygen supply port 7, and a valve assembly frame 4 provided with a gas supply control valve 6 and a gas supply port 8 are integrally provided. Oxygen and gas are supplied through the sphere 7 and the gas supply port 8 and the oxygen and gas supplied can be controlled by the oxygen amount regulating valve 5 and the gas amount regulating valve 7, and the handle 3. Oxygen and gas supplied to the inside of the head is supplied to the head bracket 10 through the oxygen supply pipe and the gas supply pipe and can be mixed and discharged through the tip 11 provided in the head bracket 10, the handle ( The inside of the 3) is provided with a piezoelectric element 32 to be operated by the ignition button 50 provided on the outside of the handle (3) and the ignition unit provided in the piezoelectric element 52 and the head bracket 10 When the piezoelectric element 52 is operated by connecting the ignition pin 19 of the (9) with the electric wire 24, the ignition pin provided in the head bracket 10 ( The spark is generated between the 19 and the ignition coil 16, and when the ignition button 50 is operated, a part of the gas introduced into the handle 3 is distributed to the head bracket through the mixed gas supply pipe. In the supply to the ignition gas injection nozzle (15) mounted on the (10) is to be ignited by the spark generated between the ignition pin 19 and the ignition coil 16, Between the handle 3 and the head bracket 10 separately provided with a cutting oxygen supply pipe 20 for supplying cutting-only oxygen and a mixed gas supply pipe 21 for supplying a mixed gas used for ignition, The inside of the handle (3) is provided with an oxygen gas mixing device 30 for mixing oxygen and gas to supply to the mixed gas supply pipe 21, An ignition button 50 for activating the piezoelectric element 32 to be exposed at the upper end of the handle 3, An oxygen supply valve 45 is provided inside the valve assembly 4 to control the oxygen supplied to the cutting oxygen via the oxygen amount control valve 5, and on the upper side or the lower side of the back of the handle 3. Automatic ignition gas cutting machine comprising an operation means for operating the oxygen supply valve (45). The oxygen gas mixing device (30) according to claim 1, wherein the oxygen gas mixing device (30) communicates with the gas supply pipe (8-1) by forming a gas inflow chamber (35) at the center of the connector bundle (31). In addition, a gas supply nozzle 33 fixed to the discharge end of the ignition oxygen supply pipe 7-2 is inserted into the inlet of the gas inlet chamber 35, and an injection hole 36 to which the mixed gas supply pipe 21 is connected to the outlet. Automatic ignition gas cutter, characterized in that by inserting the). 3. The automatic ignition gas cutting machine according to claim 2, wherein the gas supply nozzle (33) has a sharp tip, and the inner surface of the injection fitting (36) is formed with an inclined surface extending to both sides with respect to the center. According to claim 1, the operating device is mounted on the space 32 of the connector frame 31 to operate the oxygen supply valve 45, the lever 42 in the space 32 of the connector frame 31 ) Is rotatably installed on the shaft 43, and the cutting oxygen amount adjusting valve 40 is rotatably installed on the back portion of the handle 3 in which the lever 42 is positioned, and the lifting bar 41 is cut. Press the upper surface of the oxygen amount control valve 40, the lower end of the lever 42 is provided with a rod 44, the automatic ignition gas cutter, characterized in that to operate the oxygen supply valve 45. The operating means for operating the oxygen supply valve (45) mounted inside the valve assembly frame (4) is a shaft (47) with a cutting oxygen amount adjusting lever (46) on the lower side of the handle (3). The rod 44, which is shortly formed by the support piece 46-1 of the cutting oxygen amount adjusting lever 46 inserted into the handle 3, to operate the oxygen supply valve 45. Automatic ignition gas cutter, characterized in that to be able to. The cutting tool according to claim 1, wherein a cutting oxygen supply hole (12) is formed in the head bracket (10) to which the conventional tip (11) is mounted so as to communicate with the cutting oxygen supply pipe (20). Automatic ignition gas cutting machine, characterized in that can be supplied separately to (11). The oxygen supply hole of claim 1, wherein the insertion hole 31 of the connector bundle 31 has a gas supply hole 58 connected to the gas supply pipe 8-1 and an oxygen supply hole connected to the ignition oxygen supply pipe 7-2. (59) and the mixed gas discharge hole (60) connected to the ignition mixed gas supply pipe (23) at equal intervals, the push bar 51, the gas supply hole (58), oxygen supply hole (59), oxygen A sealing ring 61 is provided between each of the supply holes 59 and each outside of the gas supply hole 58 and the mixed gas discharge hole 60 to mix the oxygen and gas introduced therein to prevent leakage. Automatic ignition gas cutting machine, characterized in that to be supplied to the gas injection nozzle (15). At the bottom of the handle 3, an oxygen supply valve 5, an oxygen supply port 7, and a valve assembly frame 4 provided with a gas supply control valve 6 and a gas supply port 8 are integrally provided. Oxygen and gas are supplied through the sphere 7 and the gas supply port 8 and the oxygen and gas supplied can be controlled by the oxygen amount regulating valve 5 and the gas amount regulating valve 7, and the handle 3. Oxygen and gas supplied to the inside of the head is supplied to the head bracket 10 through the oxygen supply pipe and the gas supply pipe and can be mixed and discharged through the tip 11 provided in the head bracket 10, the handle ( The inside of the 3) is provided with a piezoelectric element 32 to be operated by the ignition button 50 provided on the outside of the handle (3) and the ignition unit provided in the piezoelectric element 52 and the head bracket 10 When the piezoelectric element 52 is operated by connecting the ignition pin 19 of the (9) with the electric wire 24, the ignition pin provided in the head bracket 10 ( The spark is generated between the 19 and the ignition coil 16, and when the ignition button 50 is operated, a part of the gas introduced into the handle 3 is distributed to the head bracket through the mixed gas supply pipe. In the supply to the ignition gas injection nozzle (15) mounted on the (10) is to be ignited by the spark generated between the ignition pin 19 and the ignition coil 16, Between the handle 3 and the head bracket 10 separately provided with a cutting oxygen supply pipe 20 for supplying cutting-only oxygen and a mixed gas supply pipe 21 for supplying a mixed gas used for ignition, An ignition button 50 for activating the piezoelectric element 32 to be exposed at the upper end of the handle 3, An oxygen supply valve 45 is provided inside the valve assembly 4 to control the oxygen supplied to the cutting oxygen via the oxygen amount control valve 5, and on the upper side or the lower side of the back of the handle 3. Having an operating means for operating the oxygen supply valve 45; Oxygen and gas supplied from the handle 3 for ignition and spark generation are supplied to the ignition gas injection nozzle 15 and the tip 11 of the head bracket 10 in a state separated by any supply means. Automatic ignition gas cutting machine comprising a. The oxygen supply port 7 and the gas supply port according to claim 1, further comprising a cutting oxygen supply pipe 20 connected to the oxygen supply valve 45 at an upper side of the handle 3 and formed in the valve bundle frame 4. Oxygen supply pipe 21-1 and gas supply pipe 21-2 which are connected to each other (8) are provided, respectively, so that oxygen and gas used for spark generation can be supplied in a separated state, and a protective support pipe 22 is provided. The auto-ignition gas cutter, characterized in that the inside of the oxygen and gas used for ignition can be supplied separately. The oxygen inflow hole for ignition according to claim 1, wherein the oxygen flow hole 31-2 and the gas flow hole 31-3 which are drilled side by side in the connector bundle 31 mounted inside the handle 3 are formed. 1) and the ignition gas inlet hole (65-1) to be spaced apart so that oxygen and gas can be supplied to the push bar insertion hole (31-1) and inserted into the push bar insertion hole (31-1) When the ignition button 50 is pressed on the push bar 51, a thin part 51-1 coinciding with the ignition oxygen inlet hole 66-1 and the ignition gas inlet hole 65-1 to allow oxygen and gas to flow therein. ), (51-2) is spaced apart, the thin rod portion (51-1) by forming an ignition oxygen discharge hole 63 and the ignition gas discharge hole (64) on the push bar insertion hole (31-1), The oxygen and gas introduced into the 51-2 are discharged, and the discharged oxygen and gas are mounted through a nozzle through the oxygen supply hole 17-1 and the gas supply hole 17-2 of the head bracket 10. Supply to the ignition gas injection nozzle 15 mounted in the chamber 14, respectively. Auto ignition gas cutter, characterized in that the control so.