Flame cutting machine capable of preventing sparks from splashing

Abstract

The utility model relates to the technical field of flame cutting, and discloses a flame cutting machine capable of preventing sparks from splashing, which comprises a gun seat, a flame gun is mounted on the gun seat and used for generating flames to cut workpieces, an anti-splashing mechanism is arranged on the surface of the flame gun, and the anti-splashing mechanism comprises an air injection component arranged outside the flame gun and used for injecting the flames into the flame gun. The air injection assembly is used for injecting air flow and comprises an air injection cover surrounding the flame gun, and a conical nozzle is arranged on the air injection cover. According to the flame cutting machine capable of preventing the sparks from splashing, when a flame gun works, an external air source conveys airflow to a first annular pipe through an air inlet pipe, then the airflow is evenly distributed to an air spraying cover through a flow dividing pipe and finally sprayed out from a conical nozzle, and a high-speed air curtain is formed and faces a cutting area; the air curtain can preliminarily block and guide sparks at the moment when the sparks are generated during cutting, so that the original splashing track is changed, and the possibility that the sparks splash to the surrounding environment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to flame cutting technical field, concretely is a kind of flame cutting machine that avoids spark splashing. BACKGROUND

[0002] Flame cutting machine is a kind of machine that uses the heat energy of combustible gas and oxygen mixture combustion, preheats the workpiece cutting place to a certain temperature, sprays high-speed cutting oxygen flow, makes metal intense oxidation and releases heat, and uses flame cutting oxygen flow to blow off the molten metal oxide, so as to realize cutting. The advantage of flame cutting technology compared with other cutting technologies is that it can cut large-thickness plate, and China has mastered the flame cutting technology of cutting two-meter-thickness plate.

[0003] In the prior art, as disclosed in CN217799493U, a kind of flame cutting machine is disclosed, it includes cutting table, cutting table is equipped with horizontal moving device, horizontal moving device is driven with sliding block, flame gun lower end coaxially communicates with the burner of vertical arrangement, burner lower end is fixedly connected with flame adjusting device and limiting device;The diameter of the flame that can be adjusted out of the flame hole produces corresponding change, so that the flame intensity can be changed by relatively concentrating or dispersing the flame without changing the concentration of fuel gas or oxygen.

[0004] Although the device can change the flame intensity in the above-mentioned patent, the traditional flame cutting machine often produces a large amount of spark splashing during cutting process, which causes serious pollution to the surrounding working environment and makes the working site full of metal residues and dust. Therefore, the utility model provides a kind of flame cutting machine that avoids spark splashing. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of flame cutting machine that avoids spark splashing, solves the problem that the traditional flame cutting machine often produces a large amount of spark splashing during cutting process, which causes serious pollution to the surrounding working environment and makes the working site full of metal residues and dust.

[0006] To achieve the above purpose, the utility model is realized by the following technical scheme: a kind of flame cutting machine that avoids spark splashing, including gun seat, the gun seat is installed with flame gun, for producing flame to cut workpiece, the surface of the flame gun is equipped with anti-splashing mechanism, the anti-splashing mechanism includes:

[0007] Gas injection assembly is arranged outside the flame gun for jetting airflow, the gas injection assembly includes a gas injection cover surrounding the outside of the flame gun, and the gas injection cover is provided with a conical nozzle.

[0008] The air suction assembly is arranged on the outer surface of the flame gun, and comprises an air suction cover surrounding the outer portion of the flame gun, wherein an isolation cover is arranged in the air suction cover, and the isolation cover is sleeved on the outer surface of the flame gun; a negative pressure area is formed between the inner wall of the air suction cover and the outer wall of the isolation cover, and negative pressure generated by the negative pressure area is directed towards the cutting area.

[0009] Preferably, the air jet cover is sleeved on the outer wall of two-thirds of the height of the air suction cover, and a gas flow jetting area is formed between the inner wall of the air jet cover and the outer wall of the air suction cover, and jetting gas flow generated by the gas flow jetting area is directed towards the cutting area.

[0010] Preferably, a first annular pipe surrounds the outer portion of the air jet cover, a plurality of shunt pipes are fixedly connected between the first annular pipe and the air jet cover, and an air inlet pipe is fixedly connected to the outer surface of the first annular pipe.

[0011] Preferably, a second annular pipe surrounds the outer portion of the air suction cover, a plurality of collecting pipes are fixedly connected between the second annular pipe and the air suction cover, and an air suction pipe is fixedly connected to the outer surface of the second annular pipe.

[0012] Preferably, a connecting frame is fixedly connected between the outer surface of the air suction cover and the outer surface of the gun seat.

[0013] Preferably, quick couplings are arranged at the ends of the air inlet pipe and the air suction pipe.

[0014] Advantages

[0015] The flame cutting machine capable of preventing sparks from splashing has the following advantages compared with the prior art:

[0016] (1) When the flame gun is working, the external air source sends gas flow to the first annular pipe through the air inlet pipe, the gas flow is then uniformly distributed to the air jet cover through the shunt pipes, and finally is sprayed out from the conical nozzle to form high-speed air curtain and direct towards the cutting area; the air curtain can preliminarily block and guide the sparks generated in the cutting process, so that the original splashing trajectory of the sparks is changed, the possibility of the sparks splashing to the surrounding environment is reduced, the metal residues and dust generated by the sparks splashing are effectively reduced, the working site is cleaner, and the cleaning strength is reduced.

[0017] (2) The negative pressure area between the air cover and the isolation cover can timely suck in the sparks and metal slag in the cutting process, and the sparks and the metal slag are transported to the outside for collection through the collecting pipes, the second annular pipe and the air suction pipe, so that the sparks and the metal slag are prevented from accumulating on the workpiece, and the cleanliness of the working site is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional appearance schematic view of the utility model.

[0019] Figure 2 It is a three-dimensional appearance schematic view of the flame gun of the utility model;

[0020] Figure 3 It is a sectional view of the anti-splashing mechanism of the utility model;

[0021] Figure 4 It is a sectional view of the local structure of the utility model;

[0022] Figure 5 It is a partial structure schematic view of the utility model.

[0023] In the figure: 1, gun seat; 2, flame gun; 3, jet assembly; 31, jet cover; 32, conical nozzle; 33, first annular pipe; 34, shunt pipe; 35, air inlet pipe; 4, suction assembly; 41, suction cover; 42, isolation cover; 43, second annular pipe; 44, flow collecting pipe; 45, air suction pipe; 5, connecting frame; 6, quick connector. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] The utility model provides two technical schemes:

[0026] Figures 1-5 The first embodiment is shown: a kind of flame cutting machine to avoid spark splash, including gun seat 1, gun seat 1 is equipped with flame gun 2, for generating flame to cut workpiece, flame gun 2 surface is equipped with anti-splashing mechanism, and anti-splashing mechanism includes:

[0027] Jet assembly 3 is arranged outside flame gun 2, for jetting airflow, and jet assembly 3 includes jet cover 31 around outside flame gun 2, and conical nozzle 32 is equipped on jet cover 31;

[0028] The air suction assembly 4 is arranged on the outer surface of the flame gun 2, and the air suction assembly 4 comprises an air suction cover 41 surrounding the outer surface of the flame gun 2, and the air suction cover 41 is internally provided with an isolation cover 42 which is sleeved on the outer surface of the flame gun 2. The gap between the inner wall of the air suction cover 41 and the outer wall of the isolation cover 42 forms a negative pressure area, and the negative pressure generated by the negative pressure area is directed towards the cutting area. The airflow ejected from the conical nozzle 32 forms a high-speed air curtain which is directed towards the cutting area. The air curtain can preliminarily block and guide the sparks generated in the cutting process at the moment of cutting, so as to change the original flying trajectory and reduce the possibility of flying towards the surrounding environment. At the same time, the suction force generated by the negative pressure area between the air suction cover 41 and the isolation cover 42 pushes the sparks and metal slag generated in the cutting process to the negative pressure area under the action of the jet airflow, and then the sparks and metal slag are sucked into the air suction cover 41 by the suction force.

[0029] The air jet cover 31 is sleeved on the outer wall of the air suction cover 41 at two-thirds of the height, and the gap between the inner wall of the air jet cover 31 and the conical nozzle 32 and the outer wall of the air suction cover 41 forms an airflow ejection area, and the jet airflow generated by the airflow ejection area is directed towards the cutting area.

[0030] The outer surface of the air jet cover 31 is surrounded by a first annular pipe 33, a plurality of shunt pipes 34 are fixedly communicated between the first annular pipe 33 and the air jet cover 31, and an air inlet pipe 35 is fixedly communicated to the outer surface of the first annular pipe 33. By matching the first annular pipe 33 with the shunt pipes 34, the airflow uniformity of the airflow ejection area between the air jet cover 31 and the conical nozzle 32 and the air suction cover 41 can be improved, and the airflow is prevented from being concentrated at one point, thereby improving the anti-splashing effect.

[0031] The outer surface of the air suction cover 41 is surrounded by a second annular pipe 43, a plurality of flow collecting pipes 44 are fixedly communicated between the second annular pipe 43 and the air suction cover 41, and an air suction pipe 45 is fixedly communicated to the outer surface of the second annular pipe 43. By matching the second annular pipe 43 with the flow collecting pipes 44, the suction force uniformity of the negative pressure area between the air suction cover 41 and the isolation cover 42 can be improved, and the suction force is prevented from being concentrated at one point, thereby improving the adsorption effect.

[0032] Figures 1-5 The second embodiment is shown, and the main difference from the first embodiment is that a connecting frame 5 is fixedly connected between the outer surface of the air suction cover 41 and the outer surface of the gun seat 1. The existence of the connecting frame 5 ensures that the position of the air suction cover 41 around the flame gun 2 is fixed, so that it can stably play the role of collecting sparks and slag, and ensure the reliability and stability of the entire anti-splashing mechanism.

[0033] Quick connectors 6 are arranged at the ends of the air inlet pipe 35 and the air suction pipe 45, so that the quick connectors 6 can be quickly connected or separated from the external air source and the air suction device. Without complex threaded connections or other cumbersome connection methods, a large amount of time and labor cost can be saved.

[0034] The contents not described in detail in the specification are all the prior art known by those skilled in the art.

[0035] When the flame gun 2 starts to work, the external gas source sends gas flow to the first annular pipe 33 through the gas inlet pipe 35, and the gas flow is then uniformly distributed to the air jet cover 31 through the distribution pipe 34, and finally sprayed from the conical nozzle 32 to form a high-speed air curtain and direct to the cutting area. The air curtain can preliminarily block and guide the sparks generated during cutting at the moment, change the original splashing trajectory, and reduce the possibility of splashing to the surrounding environment. At the same time, the external air extraction device connected by the air suction pipe 45 forms a negative pressure environment in the second annular pipe 43, so that the suction force is generated in the negative pressure area between the air suction cover 41 and the isolation cover 42. The sparks and metal slag generated during cutting are pushed to the negative pressure area under the action of the jet flow, and then sucked into the air suction cover 41 by the suction force. The sparks and slag sucked in enter the second annular pipe 43 through the flow collecting pipe 44, and are finally transported to the outside collection by the air suction pipe 45.

[0036] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flame cutting machine to avoid flying sparks, comprising a gun stand (1) on which a flame gun (2) is mounted for generating a flame to cut a workpiece, characterized in that: The flame gun (2) is provided with a splash-proof mechanism, which comprises: A jet assembly (3) is arranged outside the flame gun (2) and is used for jetting air flow, wherein the jet assembly (3) comprises a jet cover (31) surrounding the outside of the flame gun (2), and the jet cover (31) is provided with a conical nozzle (32); An air suction assembly (4) is arranged on the outer surface of the flame gun (2), wherein the air suction assembly (4) comprises an air suction cover (41) surrounding the outside of the flame gun (2), the air suction cover (41) is internally provided with a separation cover (42), the separation cover (42) is sleeved on the outer surface of the flame gun (2), and the gap between the inner wall of the air suction cover (41) and the outer wall of the separation cover (42) forms a negative pressure area, and the negative pressure generated by the negative pressure area is directed to the cutting area.

2. A flame cutting machine to avoid sparks flying around according to claim 1, characterized in that: The jet cover (31) is sleeved on the outer wall of two-thirds of the height of the air suction cover (41), the gap between the inner wall of the jet cover (31) and the conical nozzle (32) and the outer wall of the air suction cover (41) forms an air flow jetting area, and the jetting air flow generated by the air flow jetting area is directed to the cutting area.

3. A flame cutting machine to avoid sparks flying around according to claim 1, characterized in that: The jet cover (31) is surrounded by a first annular pipe (33), a plurality of shunt pipes (34) are fixedly and communicatively connected between the jet cover (31) and the first annular pipe (33), and an air inlet pipe (35) is fixedly and communicatively connected to the outer surface of the first annular pipe (33).

4. A flame cutting machine to avoid sparking, according to claim 3, characterized in that: The air suction cover (41) is surrounded by a second annular pipe (43), a plurality of flow collecting pipes (44) are fixedly and communicatively connected between the air suction cover (41) and the second annular pipe (43), and an air suction pipe (45) is fixedly and communicatively connected to the outer surface of the second annular pipe (43).

5. A flame cutting machine to avoid sparks flying according to claim 1, characterized in that: The outer surface of the air suction cover (41) and the outer surface of the gun seat (1) are fixedly connected with a connecting frame (5).

6. A flame cutting machine to avoid sparks flying around according to claim 4, characterized in that: The end portions of the air inlet pipe (35) and the air suction pipe (45) are respectively provided with quick couplings (6).

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