Ignition device of flame cutting machine

Abstract

The utility model discloses an ignition device of a flame cutting machine, which relates to the technical field of flame cutting and comprises a delivery pipe, a ball sleeve, a mixer, a ball seat and a support, one end of the delivery pipe is communicated with the mixer, one end of the mixer is communicated with a gas pipe and an oxygen pipe, and the lower end of the delivery pipe is communicated with the ball seat. A sealing sleeve is installed on the outer wall of the ball seat in an embedded mode, the outer side of the ball seat is sleeved with a ball sleeve rotationally installed on the outer wall of the sealing sleeve, a nozzle is arranged at the lower end of the ball sleeve, an electronic spark generator is arranged at one end of the ball sleeve, a support is arranged at one end of the conveying pipe, and a nut is installed in the support in an embedded mode. A screw rod is rotationally inserted into the nut, and a clamping block is arranged on one side of the screw rod; according to the cutting device, the nozzle with the adjustable angle is utilized, the problems that effective adjustment cannot be achieved and the use flexibility is poor when bevel cutting or multi-section cutting at different angles needs to be conducted are solved, and the cutting angle can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of flame cutting, in particular to an ignition device of a flame cutting machine. Background Art

[0002] A flame cutting machine ignites a flame produced by a mixture of oxygen and fuel gas to form a high-temperature flame. After preheating the workpiece surface, the oxygen supply is accelerated, causing the metal to melt and burn rapidly under the action of high temperature and oxidant. At the same time, the air flow blows away the molten metal to achieve cutting of the metal material. The ignition of the flame cutting machine is a key step in the entire cutting process. A high-voltage electric spark is generated by an electronic spark generator to ignite the mixed oxygen and fuel gas.

[0003] A Chinese patent discloses an ignition device for a flame cutting machine (authorization announcement number CN210532435U). The patented technology includes a protective tube, a flame guide tube, a gas hose, a gas nozzle, a protective shell, an ignition wire, a solenoid valve, an ignition device, an ignition needle, and an adjustment device. The bottom of the protective tube is fixedly installed with a flame guide tube, the interior of the protective tube is fixedly installed with a gas hose, one end of the gas hose is fixed with a gas nozzle, and the surface of the gas hose is fixedly installed with a protective shell. The ignition device of a flame cutting machine rotates the adjustment screw so that the mounting plate drives the guide column and the upper clamping ring to squeeze the gas hose inside the lower clamping ring, adjusts the amount of gas passing through, and thus indirectly adjusts the size of the flame. The guide column acts as a limiter to prevent the upper clamping ring from deviating, ensuring that the quality and practicality of the cutting are greatly improved. It has broad development space and high promotion value, and its structure is simple and easy to operate.

[0004] This patented technology has the advantage of adjusting the flame size during use, but it still has some shortcomings during use. The ignition device cannot adjust the angle of the jetted cutting flame. When bevel cutting or multiple sections of cutting at different angles are required, it cannot be effectively adjusted, and the flexibility of use is poor. Therefore, those skilled in the art provide an ignition device for a flame cutting machine to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to provide an ignition device for a flame cutting machine to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides an ignition device for a flame cutting machine, including a delivery pipe, a ball sleeve, a mixer, a ball seat and a bracket. One end of the delivery pipe is connected and installed with the mixer, and one end of the mixer is connected and installed with a gas pipe and an oxygen pipe. The lower end of the delivery pipe is connected and installed with a ball seat, and a sealing sleeve is embedded and installed on the outer wall of the ball seat. A ball sleeve rotatably installed on the outer wall of the sealing sleeve is sleeved on the outer side of the ball seat, a nozzle is provided at the lower end of the ball sleeve, an electronic spark generator is provided at one end of the ball sleeve, and a bracket is provided at one end of the delivery pipe, a nut is embedded and installed inside the bracket, a screw is rotatably inserted inside the nut, and a clamp is provided on one side of the screw.

[0007] Furthermore, a torsion ring is provided at one end of the screw, a rotating seat is embedded and installed inside one end of the clamping block, and one end of the screw is rotatably inserted into the rotating seat;

[0008] Specifically, when rotating the screw, it is convenient to apply rotational force to the screw by grasping the torsion ring. At the same time, the rotational force of the screw acts on the inside of the rotating seat, avoiding the rotational force acting on the clamping block, avoiding the application of rotational friction to the outer wall of the ball sleeve when the clamping block fits with the outer wall of the ball sleeve, and reducing the wear of the clamping block when it fits with the outer wall of the ball sleeve.

[0009] Furthermore, a control valve is provided inside the delivery pipe;

[0010] Specifically, the control valve controls the opening and closing degree of the delivery pipe, thereby controlling the delivery volume of the mixed gas of fuel gas and oxygen delivered inside the delivery pipe.

[0011] Furthermore, a grid plate is provided inside the mixer, a filter element is provided at one end of the grid plate, and sealed bearings are embedded and installed inside the grid plate and both ends of the mixer;

[0012] Specifically, the filter element filters the oxygen and fuel gas transported into the mixer, and impurities in the oxygen and fuel gas are intercepted. The force-bearing end of the filter element is supported by the grid plate to maintain the stability of the filter element, while the fluid passes effectively through the holes inside the grid plate.

[0013] Furthermore, a motor is provided at one end of the mixer, a rotating shaft is provided at one end of the motor, and one end of the rotating shaft is rotatably mounted inside a sealed bearing;

[0014] Specifically, when the rotating shaft rotates inside the mixer, it is supported by the sealed bearing and the rotating connection with the structural member is sealed.

[0015] Furthermore, the outer wall of the rotating shaft is provided with stirring rods distributed in a circular array, the lower end of the mixer is connected to the interior thereof and is provided with a cleaning pipe located on one side of the filter element, and the lower end of the cleaning pipe is provided with a sealing cover;

[0016] Specifically, the stirring rod rotates with the rotating shaft, thereby mixing the oxygen and gas inside the mixer so that the gas is fully burned when ignited. The sealing cover controls the opening and closing of the cleaning pipe, and the impurities intercepted by the filter element are cleaned through the cleaning pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the oxygen and fuel gas mixed and transported by the mixer enter the interior of the ball seat through the delivery pipe and are output through the nozzle, forming a cutting flame under the action of the electronic spark generator, thereby realizing flame cutting of the workpiece; at the same time, the ball sleeve rotates on the outer wall of the ball seat, and the fixed ball sleeve drives the nozzle to move after rotation, thereby realizing the adjustment of the jet cutting flame angle; when the workpiece is cut, the inclination of the cutting surface can be conveniently adjusted, and the flexibility of the flame cutting machine is improved when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the mixer in the utility model;

[0020] Figure 3 This is a schematic diagram of the main three-dimensional structure of the ball sleeve in the utility model;

[0021] Figure 4 This is a schematic diagram of the main cross-sectional three-dimensional structure of the ball seat in the utility model;

[0022] Figure 5 This is a schematic diagram of the main three-dimensional structure of the screw in the utility model.

[0023] In the figure: 1. delivery pipe; 2. control valve; 3. ball sleeve; 4. mixer; 5. cleaning pipe; 6. motor; 7. rotating shaft; 8. stirring rod; 9. grid plate; 10. sealed bearing; 11. filter element; 12. sealing cover; 13. gas pipe; 14. oxygen pipe; 15. bracket; 16. ball seat; 17. rotating seat; 18. nozzle; 19. sealing sleeve; 20. torsion ring; 21. screw; 22. nut; 23. clamping block; 24. electronic spark generator. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5 , the utility model provides a technical solution:

[0026] Example 1:

[0027] An ignition device for a flame cutting machine includes a delivery pipe 1, a ball sleeve 3, a mixer 4, a ball seat 16, and a bracket 15. One end of the delivery pipe 1 is connected to and installed with the mixer 4, and one end of the mixer 4 is connected to and installed with a gas pipe 13 and an oxygen pipe 14. The lower end of the delivery pipe 1 is connected to and installed with the ball seat 16. A sealing sleeve 19 is embedded in the outer wall of the ball seat 16. The outer side of the ball seat 16 is sleeved with a ball sleeve 3 rotatably mounted on the outer wall of the sealing sleeve 19. The lower end of the ball sleeve 3 is provided with a nozzle 18. One end of the ball sleeve 3 is provided with an electronic spark generator 24. One end of the delivery pipe 1 is provided with a bracket 15. A nut 22 is embedded in the bracket 15. A screw 21 is rotatably inserted into the nut 22. A clamping block 23 is provided on one side of the screw 21.

[0028] A torsion ring 20 is provided at one end of the screw rod 21, and a rotating seat 17 is embedded in one end of the clamping block 23. One end of the screw rod 21 is rotatably inserted into the rotating seat 17.

[0029] A control valve 2 is provided inside the delivery pipe 1;

[0030] In this embodiment, by controlling the opening and closing of the delivery pipe 1 through the control valve 2, fine adjustment of the mixed gas delivery flow rate can be achieved, which is beneficial to ensuring the quality of the mixed gas and the cutting effect during the cutting process. The rotating ball sleeve 3 can flexibly adjust the angle of the nozzle 18, so that the cutting machine can select the optimal cutting angle according to the characteristics of the workpiece, improve the cutting accuracy and efficiency, and avoid the situation where the cutting nozzle 18 cannot be adjusted in angle and has low flexibility of use. At the same time, through the control of flow and adjustment of angle, it helps to reduce unnecessary energy waste and improve energy utilization.

[0031] Example 2:

[0032] A grid plate 9 is provided inside the mixer 4, a filter element 11 is provided at one end of the grid plate 9, and sealed bearings 10 are embedded and installed inside both ends of the grid plate 9 and the mixer 4;

[0033] A motor 6 is provided at one end of the mixer 4, a rotating shaft 7 is provided at one end of the motor 6, and one end of the rotating shaft 7 is rotatably mounted inside a sealed bearing 10;

[0034] The outer wall of the rotating shaft 7 is provided with stirring rods 8 distributed in a circular array. The lower end of the mixer 4 is connected to the interior of the cleaning pipe 5 located on one side of the filter element 11. The lower end of the cleaning pipe 5 is provided with a sealing cover 12.

[0035] In this embodiment, the movement of the rotating shaft 7 drives the full mixing of oxygen and fuel gas inside the mixer 4, ensuring that the fuel gas is effectively ignited. The transported gas is filtered through the filter element 11, preventing impurities from affecting the combustion effect of the fuel gas. After a period of use, the filter element 11 can be cleaned with a cleaning tool.

[0036] Working principle: The mixer 4 is fixedly installed on the flame cutting machine. According to the usual cutting habits of the workpiece, the nozzle 18 opening is arranged downward or to one side. The gas and oxygen are delivered to the mixer 4 together. When the motor 6 is in operation, the shaft 7 is driven to rotate. When the shaft 7 rotates inside the mixer 4, the oxygen and gas inside the mixer 4 are mixed to help the gas be ignited and burned. The mixed gas enters the delivery pipe 1. The control valve 2 controls the opening and closing of the delivery pipe 1, and the flow rate of the mixed gas is adjusted. The electronic spark generator 24 generates a high-voltage electric spark to ignite the mixed oxygen and gas to form a high-temperature flame. The flame preheats the surface of the metal workpiece so that the metal quickly reaches the combustion temperature, and then accelerates the supply of oxygen so that the metal melts and burns rapidly under the action of high temperature and oxidant. After the cutting is completed, the gas source is turned off, and the cutting process is stopped after the cutting area cools down.

[0037] During the cutting process, the gas source can be cut off at any time, or the ball sleeve 3 can be rotated before cutting. The ball sleeve 3 rotates on the outer wall of the ball seat 16, and the angle of the nozzle 18 is adjusted due to the rotation of the ball sleeve 3. After adjustment, a rotational force is applied by grasping the torsion ring 20 and the screw 21. Because the rotational force acts on the inside of the rotating seat 17, it avoids the clamping block 23 from applying a rotational friction force to the outer wall of the ball sleeve 3. The clamping block 23 is fastened to the outer wall of the ball sleeve 3 to fix the ball sleeve 3. The nozzle 18 with the adjusted angle is fixed, so that the flame cutting machine can adjust the cutting angle of the workpiece when in use.

Claims

1. An ignition device for a flame cutting machine, comprising a delivery pipe (1), a ball sleeve (3), a mixer (4), a ball seat (16) and a bracket (15), characterized in that: One end of the delivery pipe (1) is connected to and installed with a mixer (4), and one end of the mixer (4) is connected to and installed with a gas pipe (13) and an oxygen pipe (14). The lower end of the delivery pipe (1) is connected to and installed with a ball seat (16), and the outer wall of the ball seat (16) is embedded with a sealing sleeve (19). The outer side of the ball seat (16) is sleeved with a ball sleeve (3) rotatably mounted on the outer wall of the sealing sleeve (19). The lower end of the ball sleeve (3) is provided with a nozzle (18), and one end of the ball sleeve (3) is provided with an electronic spark generator (24). One end of the delivery pipe (1) is provided with a bracket (15), and a nut (22) is embedded in the bracket (15). A screw (21) is rotatably inserted into the nut (22), and a clamping block (23) is provided on one side of the screw (21).

2. The ignition device of a flame cutting machine according to claim 1, characterized in that: One end of the screw rod (21) is provided with a torsion ring (20), one end of the clamping block (23) is embedded with a rotating seat (17), and one end of the screw rod (21) is rotatably inserted into the rotating seat (17).

3. The ignition device of a flame cutting machine according to claim 1, characterized in that: A control valve (2) is provided inside the delivery pipe (1).

4. The ignition device for a flame cutting machine according to claim 1, characterized in that: A grid plate (9) is provided inside the mixer (4), a filter element (11) is provided at one end of the grid plate (9), and sealed bearings (10) are embedded and installed inside both ends of the grid plate (9) and the mixer (4).

5. The ignition device of a flame cutting machine according to claim 4, characterized in that: A motor (6) is provided at one end of the mixer (4), a rotating shaft (7) is provided at one end of the motor (6), and one end of the rotating shaft (7) is rotatably mounted inside a sealed bearing (10).

6. The ignition device of a flame cutting machine according to claim 5, characterized in that: The outer wall of the rotating shaft (7) is provided with stirring rods (8) distributed in a ring array, and the lower end of the mixer (4) is connected to the interior thereof and is provided with a cleaning pipe (5) located on one side of the filter element (11), and the lower end of the cleaning pipe (5) is provided with a sealing cover (12).

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