KR100232381B1 - Automatic gas welding apparatus - Google Patents

Abstract

The present invention relates to an automatic gas cutting machine, which transmits rotational power to a second electric gear connected to a driving wheel to rotate the driving wheel, a first electric gear connected to the second electric gear and the driving gear and the driving gear sequentially. An automatic gas cutting machine equipped with a motor and a drive source connected to the motor, comprising: a rotating arm having a center axis of the drive gear and extending in opposite directions on both ends of the center axis; and an outer side of the piston rod at the lever outer end of the rotating arm. End cylinders are connected to each other, and the first cylinder and the second cylinder installed so that the piston rod is operated opposite to each other, the variable valve installed on the first supply line for supplying gas to the torch, and the gas supplied to the torch Variable valve and first cylinder to supply gas supplied to the torch to the first cylinder and the second cylinder to supply the first cylinder and the second cylinder And a second supply line connected to the second cylinder and connected between the first cylinder and the second cylinder and the twelfth supply line to supply the gas supplied to the first cylinder and the second cylinder back to the first supply line. It is equipped with the discharge line is equipped with an automatic gas cutting machine is no need for the motor and power, and the vibration is hardly generated during the operation, the working condition is very good, and the power line is not caught during the movement or operation It is very convenient to use.

Description

Automatic Gas Cutting Machine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatoc gas cutting machine, and more particularly, to an auto gas cutting machine capable of operating a cylinder by gas pressure supplied to a torch and rotating a driving wheel by operation of the cylinder.

In general, the automatic gas cutting machine is a machine that automatically cuts the steel plate into straight, curved, circular, and other arbitrary shapes, and the cutting surface is clean and the cutting speed is widely used.

The automatic gas cutting machine is provided with a motor inside the casing to transfer the driving force on its own steel plate, and the driving wheel is connected to the motor by a plurality of gears so that the driving wheel is rotated by the driving of the motor.

By the way, the conventional automatic gas cutting machine used a motor as a driving means for rotating the drive wheel, the vibration generated by the drive of the motor is transmitted to the cutting machine was not able to perform a stable automatic transfer cutting work and there was a problem of uneven cutting surface. In addition, since a separate power source is required in addition to the compressed gas supply means to drive the motor, inconvenience in moving and using the device has been caused.

In view of the above problems, an object of the present invention is to operate the cylinder by the gas pressure supplied to the torch, and the driving wheel is rotated forward and backward due to the operation of the cylinder. It is possible to provide an automatic gas cutting machine that can improve workability and convenience in use.

Automatic gas cutting machine according to the present invention for achieving the above object, the second electric gear connected to the drive wheel to rotate the drive wheel, the first electric gear and the drive gear sequentially connected to the second electric gear, the rotation to the drive gear An automatic gas cutting machine equipped with a motor for transmitting power and a driving source connected to the motor, comprising: a rotating arm having a central axis of the drive gear and extending in opposite directions at both ends of the central axis, and at an outer end of the lever of the rotating arm. The outer end of the piston rod is connected to each other, the first cylinder and the second cylinder installed so that the piston rod is operated opposite to each other, a variable valve installed on the first supply line for supplying gas to the torch, and supplies to the torch A variable valve, a second supply line connected to the first cylinder and the second cylinder to supply gas to the first cylinder and the second cylinder, a first cylinder, and To supply the gas supplied to the cylinder 2 back to the first supply line is provided with a discharge line installed in the connection between the first cylinder and the second cylinder and the first supply line is characterized in that configuration.

According to one feature of the present invention, the first cylinder and the second cylinder, the cover is coupled to the open portion of the outer side, the forward flow path is formed so that the gas is supplied or discharged inside the cover side and the upper end side inside the cover opposite side And a cylinder housing in which a reverse flow path is formed so that gas is discharged or supplied to the other side of the upper end, and a cap installed at the upper end of the cylinder housing and connected to the second supply line, and a cylinder housing inside the cap to slide the forward flow path and the reverse flow path into the second A slide valve having a first through hole and a second through hole selectively connected to the supply line or the discharge line, an interlock lever having one end connected to the slide valve and the other end extending out of the cap, and the piston rod Therefore, one end is coupled to the outer end of the interlocking lever and the other end is piece to move the interlocking lever to operate the slave valve. The operation Rotonda is connected to the outer end the lever is provided.

According to the present invention automatic gas cutting machine, there is no need for a motor and a power source, so that vibration is hardly generated during operation, and thus the working state is very good and the movement and use of the device is very convenient.

1 is a schematic side view showing an automatic gas cutting machine of the present invention.

2 is a side cross-sectional view showing a cylinder operating structure of the automatic gas cutter.

3 is a fragmentary side view showing the installation state of the cylinders and the pivot arm.

* Explanation of symbols for main parts of the drawings

3: driving wheel 4: torch

5: main valve 6: 1st supply line

9: Drive Gear 12: Rotating Arm

13 variable valve 14 second supply line

15: discharge line 20: the first cylinder

40: second cylinder

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

1 is a schematic side view showing an automatic gas cutter of the present invention, in which a caster 2 and a driving wheel 3 are provided at both sides of the lower part of the case 1, and a torch 4 is provided at the case 1 on one side of the driving wheel 3. Is installed, and the torch 4 is connected with a first supply line 6 through which a gas of a prescribed pressure is supplied from the main valve 5.

On the other hand, the drive wheel (3) is provided with a second electric gear (7) coaxially to the first electric gear (8) is engaged with it, the drive gear (9) is engaged with the first electric gear (8). The center of the drive gear 9 forms a central axis 10 of the drive gear 9 according to the characteristics of the present invention as shown in FIG. 3 and extends in opposite directions on both ends of the central axis 10, respectively. The rotational arm 12 which has the formed lever 11 is provided.

The first and second cylinders 20 and 40 are connected to the pivoting arm 12, respectively, and the piston rods of the cylinders 20 and 40 are provided at the outer ends of the levers 11 of the pivoting arm 12. The outer ends of the (31) and (51) are connected to each other, and the piston rods (31) and (51) are installed so as to operate opposite to each other.

On the other hand, a variable valve 13 is provided on the first supply line 6, and a second supply line 14 is provided between the variable valve 13, the first cylinder 920, and the second cylinder 40. It is installed to supply the gas supplied to the torch 4 to each of the cylinders 20 and 40, and between the cylinders 20 and 40 and the first supply line 6, a first cylinder ( 20 and the discharge line 15 is installed to supply the gas supplied to the second cylinder 40 back to the first supply line (6).

Here, the first cylinder 20 and the second cylinder 40 have the same configuration as shown in FIG. 2, except that the operations of the piston rods 31 and 51 are opposite to each other. Same as

First, covers 21 and 41 are coupled to the openings on one side of the cylinder housings 24 and 44 through which the piston rods 31 and 51 and the pistons 30 and 50 reciprocate. 21 and 41, forward flow passages 22 and 44 are formed to supply or discharge gas to one side of the upper side and the upper side, and a reverse flow path such that the gas is discharged or supplied to the other side of the upper side and the upper side of the cover 21 and 41. 2 3) 43 is formed.

On top of the cylinder housings 24 and 44, caps 25 and 45 to which the second supply line 14 is connected are installed, and inside the caps 25 and 45 on the cylinder housings 24 and 44. The first through hole 27 and 47 slides to selectively connect the forward flow passages 24 and 44 and the reverse flow passages 23 and 43 to the second supply line 14 or the discharge line 15. And slide valves 26 and 46 having second through holes 28 and 48 formed therein.

In addition, interlocking levers 34 and 54 are provided so that one end is connected to the slide valves 26 and 46 and the other end is formed to extend out of the caps 25 and 45, and the interlocking levers 34 and 54 are provided. The actuating levers 3 2 and 52 are connected to each other, which moves the interlocking levers 34 and 54 as the piston rods 31 and 51 linearly reciprocate to operate the slide valves 26 and 46. A long hole (33) 53 is formed at one end to be coupled to the outer end of the interlocking lever (34) (54) and the other end is connected to the outer end of the piston rod (31) (51).

Gas cutting machine of the present invention having such a configuration performs the following operation, the gas of the prescribed pressure supplied through the main valve (5) at the time of the gas cutting operation of the stationary state by the variable valve 13 the first supply line ( 6) is directly introduced into the torch (4).

On the other hand, during the automatic feed cutting operation, the gas supplied from the main valve (5) flows into the second supply line (14) by the variable valve (13), and the gas introduced into the first cylinder (20) and the second It is supplied to the cylinder 40, respectively.

As described above, the gas supplied to the first and second cylinders 20 and 40 by the second supply line 14 continuously operates the cylinders 20 and 40 to be opposite to each other. Here, the first cylinder 20 Only the operation of) will be described. (Operation of the second cylinder 40 is in the reverse order of the first cylinder 20, and the symbols in parentheses in the drawing indicate parts of the second cylinder 40.)

First, as shown in FIG. 2, the gas introduced into the cap 25 through the second supply line 14 flows into the forward flow passage 22 through the first through hole 27 of the slide valve 26. The gas flows into the cylinder housing 34 on the cover 21 side and transfers the piston 30.

Here, as the piston 30 is advanced, the operating lever 32 connected to the outer end of the piston rod 31 is interlocked, and the long hole 33 of the operating lever 32 moves along the outer end of the interlocking lever 34. One end is supported, the interlocking lever 34 supported on one side of the long hole 33 of the operating lever 32 while advancing the piston 30 continues to advance the predetermined distance (L) from just before completion to completion. 6) moves forward the slide valve 26 to close the forward flow passage 22 and to connect the reverse flow passage 23 to the second through hole (28). And while the piston 30 is moved a predetermined distance (L), the air inside the cylinder housing 24 is discharged to the outlet 29 through the reverse flow path (23).

As the forward flow passage 22 is blocked as described above, the gas inside the cap 25 flows into the reverse flow passage 23 through the second through hole 28 of the slide valve 26 and reverses the advanced piston 30. The piston rod 32 and the operating lever 32 are reversed by the reverse of the piston 30, and the gas inside the cylinder housing 24 flows into the outlet 29 through the forward passage 22. Since the interlocking lever 34 is supported on the other side of the long hole 33 from the predetermined distance (L) just before completion of the reverse movement, the slide valve 26 is returned to its original position, so the forward flow passage 22 is opened again and the reverse flow passage 23 is obtained. ) Is closed.

By repeating the above operation, the first cylinder 20 pushes or pulls one lever 11 of the pivoting arm 12, and the second cylinder 40 removes the lever 11 opposite to the pivoting arm 12. Since the rotating arm 12 rotates smoothly by pulling or pushing the cylinder 20 opposite to the cylinder 20, the driving gear 9 is rotated, and the first electric gear 8, the second electric gear 7, and the driving wheel connected thereto are rotated. (3) is rotated. As the piston 30 moves forward and backward, the gas discharged to the discharge port 29 is introduced into the first supply line 6 through the discharge line 15 and supplied to the torch 4, so that the gas is discharged. Will be.

Such automatic gas cutting machine of the present invention drives the driving wheel 3 with the gas of the prescribed pressure supplied from the main valve 5 and simultaneously supplies it to the torch 4 so that a motor and a power supply are not required as in the prior art. do.

According to the automatic gas cutting machine according to the present invention as described above, the motor and the power supply are not necessary so that the vibration hardly occurs during the operation, the working state is very good, and the power line is not caught during the movement of the device or the operation. There is an effect that can be used very conveniently.

Claims (2)

A second motor gear connected to the drive wheel to rotate the drive wheel, a first motor gear and a drive gear sequentially connected to the second motor gear, a motor for transmitting rotational power to the drive gear, and In the automatic gas cutting machine provided with a driving source connected, the rotating arm 12 which forms the central axis 10 of the drive gear 9 and has levers 11 extending in opposite directions on both ends of the central axis 10, respectively. And, the outer end of the piston rod is connected to the outer end of the lever 11 of the pivot arm 12, respectively, the first cylinder 20 and the second cylinder 40 and the piston rod is installed so as to operate opposite to each other; In addition, the variable valve 13 installed on the first supply line 6 for supplying gas to the torch 4 and the gas supplied to the torch 4 may be connected to the first cylinder 20 and the second cylinder ( The variable valve 13, the first cylinder 20, and the second cylinder 40 to supply 40. The first cylinder 20 and the second supply line 14 connected to and installed to supply the gas supplied to the first cylinder 20 and the second cylinder 40 to the first supply line 6 again; Automatic gas cutting machine, characterized in that configured to be provided with a discharge line (15) connected between the second cylinder (40) and the first supply line (6). According to claim 1, The first cylinder 20 and the second cylinder 40, the cover 21, 41 is coupled to the opening portion of one side and the inside of the cover 21, 41 side and top one side Forward passages 22 and 42 are formed to supply or discharge gas to the cylinder housing, and the reverse passages 23 and 43 are formed so that the gas is discharged or supplied to the inside of the cover 21 and 41 and the other side of the upper end. (24) (44), caps (25) and (45) installed at upper ends of the cylinder housings (24) and (44) connected to the second supply line (14), and inside the caps (25) and (45). A slide is moved on the cylinder housings 24 and 44 to selectively connect the forward passages 22 and 42 and the reverse passages 23 and 43 to the second supply line 14 or the discharge line 15. Slide valves 26 and 46 formed with first through holes 27 and 47 and second through holes 28 and 48, and one end is connected to the slide valves 26 and 46, and the other end is Interlocking lever 34 extended to the outside of the cap (25) (45) 54 and one end of the piston rod 31 and 51 to move the interlocking levers 34 and 54 so as to operate the slide valves 26 and 46 as the piston rods 31 and 51 are linearly reciprocated. 34) The auto gas cutter is characterized in that it is provided with an operating lever (32) (52) coupled to the outer end of the (54) and the other end connected to the outer end of the piston rod (31) (51).