Single-nozzle iron powder ejector of flame cutting machine

By optimizing the flow channel structure and detachable design of the injector, the problems of uneven iron powder spraying and easy clogging in flame cutting machines have been solved, achieving uniform iron powder spraying and efficient equipment maintenance, thus improving cutting quality and production continuity.

CN223762338UActive Publication Date: 2026-01-06SHANGHAI AIKESHENG IND CO LTD
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Patent Information

Application Number
CN202520160633.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-01-06
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Traditional flame cutting machines suffer from uneven iron powder spraying and easy clogging, resulting in inconsistent cut surface quality and difficult equipment maintenance, which affects production efficiency and equipment lifespan.

Method used

A single-nozzle iron powder injector for a flame cutting machine was designed. It adopts an upwardly inclined installation channel and a funnel-shaped powder outlet pipe structure, combined with a detachable powder outlet pipe and a compression fitting, to ensure uniform iron powder spraying and easy cleaning, thereby improving the stability and maintenance convenience of the injector.

Benefits of technology

It achieves uniform spraying of iron powder, improves the quality of the cutting surface and cutting efficiency, reduces clogging problems, extends the service life of the equipment and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a single-nozzle iron powder ejector of a flame cutting machine. The single-nozzle iron powder ejector comprises a body and a powder outlet pipe, a powder spraying channel is formed in the body; a mounting channel is formed in the top of the body and communicates with the powder outlet end of the powder spraying channel. The mounting channel is upwards inclined, and the powder outlet pipe is detachably mounted in the mounting channel; an inner cavity opening of the end, close to the powder spraying channel, of the powder outlet pipe is in an outwards-expanding horn shape. The injector is high in injection accuracy, and the interior of the injector can be cleaned conveniently.
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Description

Technical Field

[0001] This utility model relates to the field of flame cutting equipment technology, and more specifically to a single-nozzle iron powder injector for a flame cutting machine. Background Technology

[0002] When a flame cutting machine is cutting, iron powder needs to be sprayed around the cutting flame. The heat generated by the burning iron powder will make the steel in the cutting area heat up more evenly. At the same time, when the iron powder is sprayed around the cutting flame, it can change the characteristics of the flame, optimize the shape and temperature distribution of the flame, and make the flame act more stably on the steel surface.

[0003] Traditional iron powder injection heads have a rudimentary design and lack proper internal flow channel planning, resulting in uneven iron powder distribution during injection. This leads to inconsistent iron powder concentration in the cutting area, with some areas having too much iron powder, resulting in waste, while other areas have too little iron powder, failing to fully utilize the iron powder's auxiliary cutting effect. Ultimately, this results in inconsistent cut surface quality, with defects such as high local roughness and irregular textures, severely affecting the processing accuracy and surface quality requirements of the cut steel.

[0004] Iron powder has a certain degree of stickiness and hygroscopicity, making it prone to caking during storage and transportation. Existing injectors lack effective anti-clogging designs, and their internal pipes, valves, and nozzles are easily blocked by iron powder agglomeration. Once clogging occurs, not only does it require shutdown for cleaning, consuming significant time and manpower costs, but frequent clogging also accelerates wear on injector components, shortens equipment lifespan, reduces production continuity and efficiency, and causes numerous inconveniences and economic losses to the company's production operations.

[0005] Therefore, developing a single-nozzle iron powder injector for flame cutting machines that offers high spray accuracy and easy cleaning is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the present invention provides a single-nozzle iron powder injector for a flame cutting machine that has high spraying accuracy and is easy to clean.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A single-nozzle iron powder injector for a flame cutting machine includes:

[0009] The main body has a powder spraying channel inside;

[0010] The powder outlet pipe has an installation channel at the top of the main body, which is connected to the powder outlet end of the powder spraying channel. The installation channel is inclined upwards, and the powder outlet pipe can be detachably installed in the installation channel. The inner cavity of the powder outlet pipe near the powder spraying channel is flared outwards.

[0011] The advantages of adopting the above technical solution are that, by setting an upwardly inclined installation channel and a funnel-shaped powder outlet, the iron powder can be sprayed more evenly and accurately distributed to the cutting area, avoiding inconsistent cutting surface quality caused by uneven spraying. At the same time, the detachable design of the powder outlet facilitates cleaning of the inside of the sprayer, effectively solving the problems of easy clogging and inconvenient maintenance of traditional sprayers, and improving the operating efficiency and service life of the equipment.

[0012] Preferably, bolts are connected to the side of the main body, and these bolts pass through the mounting channel to connect with the powder outlet pipe. This bolted connection makes the connection between the powder outlet pipe and the main body more secure and reliable, ensuring that it will not loosen or fall off during spraying, thereby guaranteeing the stability and accuracy of the spraying. At the same time, this connection method also facilitates the disassembly and installation of the powder outlet pipe, further improving the ease of equipment maintenance and reducing downtime caused by maintenance.

[0013] Preferably, the angle between the powder outlet pipe and the surface of the main body is 140°. Setting the angle between the powder outlet pipe and the surface of the main body to 140° allows the iron powder injection direction to better match the cutting flame, enabling the iron powder to participate more effectively in the cutting process, further improving cutting efficiency and cut surface quality. This angle design also reduces iron powder rebound and waste during the injection process, improving the utilization rate of iron powder.

[0014] Preferably, an installation step is provided at one end of the installation channel near the powder spraying channel, and the powder outlet pipe abuts against the installation step. The installation step provides a stable support point for the powder outlet pipe, ensuring that it maintains an accurate position and angle after installation, further improving spraying accuracy. Simultaneously, the design of the installation step facilitates quick installation and disassembly of the powder outlet pipe, improving equipment maintenance efficiency and reducing maintenance costs.

[0015] Preferably, a connector is connected to the powder inlet of the powder spraying channel, which connects both the powder spraying channel and the powder spraying pipe. This connection method helps improve the overall sealing of the injector, prevents iron powder leakage, and ensures the normal operation of the equipment.

[0016] Preferably, the connector is a compression fitting type connector.

[0017] Preferably, a bracket is detachably provided on the top of the body, and the bracket is connected to the cutting torch.

[0018] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a single-nozzle iron powder injector for a flame cutting machine, the beneficial effects of which are:

[0019] (1) By optimizing the internal flow channel and powder outlet pipe structure, the injector achieves uniform iron powder spraying, making the iron powder concentration in the cutting area consistent, and avoiding problems such as rough cutting surface and irregular texture caused by uneven spraying.

[0020] (2) The uniform spraying and precise control of iron powder can provide a stable heat supply for the cutting flame, accelerate the heating speed of the steel, and thus significantly improve the cutting speed.

[0021] (3) The injector adopts a detachable design, including components such as the powder outlet pipe, connectors, and brackets, which facilitates quick cleaning and maintenance and effectively solves the clogging problem caused by iron powder agglomeration. This design not only reduces equipment wear and extends service life, but also improves the continuity of equipment operation and reduces economic losses caused by equipment failure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 The attached figure is a schematic diagram of the structure of the injector provided by this utility model;

[0024] Figure 2 The attached figure is a top view of the injector provided by this utility model;

[0025] Figure 3 The attached figure shows the invention provided by this utility model. Figure 2 Sectional view at point AA;

[0026] Figure 4 The attached figure shows the invention provided by this utility model. Figure 3 Enlarged view of the structure at point B in the middle.

[0027] In the figure,

[0028] 1-Ontology;

[0029] 11-Powder spraying channel; 12-Installation channel; 13-Installation step;

[0030] 2-Powder outlet pipe; 3-Bolt; 4-Connector; 5-Bracket. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model embodiment discloses a single-nozzle iron powder injector for a flame cutting machine, comprising:

[0033] Body 1, with a powder spraying channel 11 inside;

[0034] The powder outlet pipe 2 has an installation channel 12 at the top of the main body 1, which is connected to the powder outlet end of the powder spraying channel 11. The installation channel 12 is inclined upward, and the powder outlet pipe 2 can be detachably installed in the installation channel 12. The inner cavity of the powder outlet pipe 2 near the powder spraying channel 11 is shaped like an outwardly expanding funnel.

[0035] To further optimize the above technical solution, the main body 1 is made of high-strength alloy material, and a powder spraying channel 11 is provided inside for conveying iron powder. The inner wall of the powder spraying channel 11 is specially treated to ensure that the inner wall is smooth, so as to reduce the frictional resistance and adhesion of iron powder during the conveying process, thereby ensuring that the iron powder can reach the spraying nozzle smoothly.

[0036] To further optimize the above technical solution, bolts 3 are connected to the side of the main body 1. Bolts 3 pass through the installation channel 12 and connect to the powder outlet pipe 2. When it is necessary to clean the powder spraying channel 11, unscrew the bolts 3, then remove the powder outlet pipe 2, and introduce gas into the powder spraying channel through the spray gun to blow out the iron powder clumps at the blockage. The powder outlet pipe 2 is fixed by the bolts 3 to facilitate disassembly of the powder outlet pipe 2 and cleaning of the powder spraying channel 11.

[0037] To further optimize the above technical solution, the angle between the powder outlet pipe 2 and the surface of the body 1 is 140°. This tilt angle design allows the iron powder injection direction to better match the cutting flame, further improving cutting efficiency and cutting surface quality.

[0038] To further optimize the above technical solution, an installation step 13 is provided at one end of the installation channel 12 near the powder spraying channel 11, and the powder outlet pipe 2 abuts against the installation step 13.

[0039] To further optimize the above technical solution, a connector 4 is connected to the powder inlet of the powder spraying channel 11, and the connector 4 connects both the powder spraying channel 11 and the powder spraying pipe.

[0040] To further optimize the above technical solution, connector 4 is a compression fitting connector.

[0041] To further optimize the above technical solution, a bracket 5 is detachably installed on the top of the main body 1, and the bracket 5 is connected to the cutting torch.

[0042] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0043] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single nozzle iron powder injector for a flame cutting machine, characterised in that, The utility model relates to a powder spraying device for cutting torch, which comprises a body, a powder spraying channel in the body, an installation channel in the top of the body, a powder outlet pipe, a step in the installation channel, a joint, a bracket and a bolt. The utility model relates to a powder spraying device for cutting torch, which comprises a body, a powder spraying channel in the body, an installation channel in the top of the body, a powder outlet pipe, a step in the installation channel, a joint, a bracket and a bolt. The utility model relates to a powder spraying device for cutting torch, which comprises a body, a powder spraying channel in the body, an installation channel in the top of the body, a powder outlet pipe, a step in the installation channel, a joint, a bracket and a bolt.

2. The flame cutting machine single tip iron powder injector of claim 1, wherein, The utility model relates to a powder spraying device for cutting torch, which comprises a body, a powder spraying channel in the body, an installation channel in the top of the body, a powder outlet pipe, a step in the installation channel, a joint, a bracket and a bolt.

3. The flame cutting machine single tip iron powder injector of claim 1 wherein, The utility model relates to a powder spraying device for cutting torch, which comprises a body, a powder spraying channel in the body, an installation channel in the top of the body, a powder outlet pipe, a step in the installation channel, a joint, a bracket and a bolt.

4. The flame cutting machine single tip iron powder injector of claim 3, wherein, The utility model relates to a powder spraying device for cutting torch, which comprises a body, a powder spraying channel in the body, an installation channel in the top of the body, a powder outlet pipe, a step in the installation channel, a joint, a bracket and a bolt.

5. The flame cutting machine single tip iron powder injector of claim 1 wherein, The utility model relates to a powder spraying device for cutting torch, which comprises a body, a powder spraying channel in the body, an installation channel in the top of the body, a powder outlet pipe, a step in the installation channel, a joint, a bracket and a bolt.

6. The flame cutting machine single tip iron powder injector of claim 5 wherein, ​ 7. The flame cutting machine single tip iron powder injector of claim 1 wherein, ​