Protective device for pipe cutting machine

By designing a combination of protective frames, spark shields, and pipe channels, the problem of difficulty in blocking splashing sparks in existing technologies has been solved, achieving more reliable safety assurance and reducing the safety risks to operators and the risk of equipment damage.

CN224464273UActive Publication Date: 2026-07-07JIANGSU HUXIAO HEAT EXCHANGE EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU HUXIAO HEAT EXCHANGE EQUIP CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-07

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Abstract

The utility model discloses a protective device for pipeline cutting machine, include: pipeline cutting machine body, protective device, protective device includes protection frame, install on the spark protection cover and pipeline groove of protection frame, and protection frame bottom connects lift cylinder, and both sides are equipped with the guide rail of pipeline cutting machine body sliding cooperation, pipeline feeding mechanism, and pipeline feeding mechanism includes support, installs on the roller mounting bracket of support, and sets up the pipeline roller on the roller mounting bracket, the cutting area setting of protective device corresponds to pipeline cutting machine body, and pipeline feeding mechanism is used for conveying the cutting area to the pipeline of cutting pipeline, the utility model discloses a protective device for pipeline cutting machine, can effectively block the splash spark of cutting time, avoids the burn of spark contact operator, reduces the situation that spark kindles the flammable material of surrounding or damages equipment part simultaneously, provides more reliable security guarantee for cutting operation.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipe processing, and in particular to a protective device for a pipe cutting machine. Background Technology

[0002] During pipe cutting operations, high-temperature sparks are generated when the cutting wheel comes into contact with the pipe. These sparks typically fly irregularly. Existing cutting equipment has relatively simple protective measures, often using fixed baffles or lacking dedicated protective structures, which are insufficient to effectively block the flying sparks. When operators work at close range, their exposed skin is easily exposed to the flying sparks, posing a risk of burns. Furthermore, the flying sparks may ignite surrounding flammable materials, creating a safety hazard in the working environment and affecting the safety and reliability of the cutting operation. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, the purpose of this utility model is to propose a protective device for pipe cutting machines that can effectively block the flying sparks generated during cutting, prevent the sparks from contacting the operator and causing burns, and reduce the possibility of sparks igniting surrounding flammable materials or damaging equipment parts, thus providing a more reliable safety guarantee for cutting operations.

[0005] To achieve the above objectives, this utility model proposes a protective device for a pipe cutting machine, comprising: a pipe cutting machine body; a protective device including a protective frame, a spark shield mounted on the protective frame, and a pipe groove, wherein the bottom of the protective frame is connected to a lifting cylinder, and guide rails are provided on both sides for sliding cooperation with the pipe cutting machine body; and a pipe feeding mechanism including a support, a roller mounting frame mounted on the support, and a pipe roller mounted on the roller mounting frame; the protective device is configured corresponding to the cutting area of ​​the pipe cutting machine body, and the pipe feeding mechanism is used to transport the pipe to be cut to the cutting area.

[0006] The protective device for pipe cutting machines of this invention can effectively block the flying sparks generated during cutting, prevent the sparks from coming into contact with the operator and causing burns, and at the same time reduce the possibility of sparks igniting surrounding flammable materials or damaging equipment parts, thus providing a more reliable safety guarantee for cutting operations.

[0007] In addition, the protective device for pipe cutting machines proposed in this application may also have the following additional technical features:

[0008] Specifically, the spark shield of the protective device is an arc-shaped plate structure, with the concave surface of the arc-shaped plate structure facing the cutting wheel of the pipe cutting machine body.

[0009] In one embodiment of this utility model, the protective device has two guide rails, which are symmetrically distributed on both sides of the protective frame.

[0010] In one embodiment of this utility model, the pipe groove of the protective device is a U-shaped through groove, and the opening direction of the U-shaped through groove is consistent with the feeding direction of the pipe feeding mechanism.

[0011] In one embodiment of the present invention, the cylinder body of the lifting cylinder of the protective device is fixed to the bottom of the workbench of the pipe cutting machine body, and the piston rod is connected to the bottom center of the protective frame.

[0012] In one embodiment of this utility model, the roller mounting frame of the pipe feeding mechanism is a Y-shaped structure, and the pipe roller is rotatably mounted on two branches of the Y-shaped structure.

[0013] In one embodiment of this utility model, the pipe feeding mechanism has multiple pipe rollers, which are distributed at intervals along the branch length direction of the roller mounting frame.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of the protective device for the pipe cutting machine according to this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the protective device for the pipe cutting machine of this utility model during use;

[0018] Figure 3 This is a partial structural schematic diagram of the protective device for a pipe cutting machine according to this utility model;

[0019] Figure 4 This is a schematic diagram of the pipe feeding structure in the protective device for the pipe cutting machine of this utility model.

[0020] As shown in the figure: 1. Pipe cutting machine body; 2. Protective device; 3. Pipe feeding mechanism; 4. Lifting cylinder; 5. Guide rail; 6. Protective frame; 7. Spark protection cover; 8. Pipe groove; 9. Support; 10. Roller mounting frame; 11. Pipe roller. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0022] The following is in conjunction with the appendix Figures 1-4 The protective device for a pipe cutter according to embodiments of the present invention includes:

[0023] Pipe cutting machine body 1.

[0024] The protective device 2 includes a protective frame 6, a spark shield 7 installed on the protective frame 6, and a pipe groove 8. The bottom of the protective frame 6 is connected to a lifting cylinder 4, and the two sides are provided with guide rails 5 that slide with the pipe cutting machine body 1.

[0025] The pipe feeding mechanism 3 includes a support 9, a roller mounting frame 10 mounted on the support 9, and a pipe roller 11 mounted on the roller mounting frame 10.

[0026] The protective device 2 is set in the cutting area corresponding to the pipe cutting machine body 1, and the pipe feeding mechanism 3 is used to transport the pipe to be cut to the cutting area.

[0027] Specifically, the working process of the protective device for the pipe cutting machine is as follows: During operation, the pipe feeding mechanism 3 moves the pipe to be cut along the conveying direction to the cutting area of ​​the pipe cutting machine body 1 through the pipe roller 11 on its roller mounting frame 10. After the pipe is in place, the lifting cylinder 4 of the protective device 2 is activated, driving the protective frame 6 to descend along the guide rails 5 on both sides towards the cutting area, so that the pipe groove 8 on the protective frame 6 is fitted onto the pipe to be cut to achieve positioning. At the same time, the spark shield 7 on the protective frame 6 moves synchronously to the outside of the cutting area to form protection. Then the pipe cutting machine body 1 performs the cutting operation on the pipe. The sparks generated during the cutting process are blocked by the spark shield 7 to avoid splashing. After the cutting is completed, the lifting cylinder 4 drives the protective frame 6 to rise and reset along the guide rail 5. The pipe feeding mechanism 3 continues to convey the pipe for the next cutting or removes the cut pipe.

[0028] In one embodiment of this utility model, the spark shield 7 of the protective device 2 is an arc-shaped plate structure, with the concave surface of the arc-shaped plate structure facing the cutting wheel of the pipe cutting machine body 1.

[0029] Specifically, when the cutting wheel of the pipe cutting machine body 1 cuts the pipe, the high-temperature sparks generated by the cutting are sprayed in all directions. At this time, the arc-shaped plate structure with the concave surface facing the cutting wheel, with the help of the "semi-enclosed fit" of the arc concave surface, covers the area around the cutting wheel, making it easier to confine the splashing sparks within the concave surface coverage area, preventing the sparks from scattering to the operating area or other parts of the equipment, thereby effectively blocking the sparks and reducing their safety threat to personnel and equipment.

[0030] In one embodiment of this utility model, the guide rails 5 of the protective device 2 are two, symmetrically distributed on both sides of the protective frame 6.

[0031] Specifically, when the lifting cylinder drives the protective frame 6 to rise and fall vertically, the two guide rails 5 symmetrically distributed on both sides of the protective frame 6 simultaneously form a guiding constraint on the protective frame 6, so that the protective frame 6 always maintains a horizontal posture during the lifting process, avoiding tilting or displacement due to uneven force on one side, ensuring that the spark protection cover 7 on the protective frame 6 can accurately cover the cutting area and the pipe groove 8 can stably align with the pipe to be cut, ensuring the stability and positioning accuracy of the lifting action of the protective device 2, and continuously providing reliable protection and positioning support for the cutting operation.

[0032] In one embodiment of this utility model, the pipe groove 8 of the protective device 2 is a U-shaped through groove, and the opening direction of the U-shaped through groove is consistent with the feeding direction of the pipe feeding mechanism 3.

[0033] Specifically, when the pipe feeding mechanism 3 transports the pipe to be cut to the cutting area along the feeding direction, the pipe groove 8 of the protective device 2, being a U-shaped groove with its opening direction aligned with the feeding direction, allows the pipe to naturally enter the groove during transport. The two side walls of the U-shaped groove provide lateral restraint for the pipe, preventing it from shifting left or right during cutting. At the same time, the through structure of the groove does not hinder the continuous movement of the pipe along the feeding direction. Once the pipe is in place, the U-shaped groove, in conjunction with the lifting of the protective frame 6, achieves precise positioning of the pipe, ensuring that the pipe maintains a stable posture during the cutting operation. After cutting, the pipe can continue to move out of the groove along the feeding direction, ensuring the smoothness of the entire transport and cutting process.

[0034] In one embodiment of this utility model, the cylinder body of the lifting cylinder 4 of the protective device 2 is fixed to the bottom of the workbench of the pipe cutting machine body 1, and the piston rod is connected to the bottom center of the protective frame 6.

[0035] Specifically, after the pipe feeding mechanism 3 transports the pipe to be cut to the cutting area, the lifting cylinder 4 is activated, and its piston rod extends from the cylinder body. Since the piston rod is connected to the center of the bottom of the protective frame 6, and the cylinder body is fixed to the bottom of the worktable to provide stable support, it can drive the protective frame 6 to descend smoothly along the guide rail 5, so that the pipe groove 8 accurately fits the pipe and the spark shield 7 accurately covers the cutting area. After the cutting operation is completed, the piston rod of the lifting cylinder 4 retracts, pulling the protective frame 6 to rise and reset. Because the piston rod is connected to the center of the protective frame 6, it can ensure that the protective frame 6 is subjected to balanced force, and there is no tilting or deviation during the lifting process. It always maintains a stable posture, ensuring that the protective device 2 can accurately complete the protection and reset actions in each cutting cycle.

[0036] In one embodiment of this utility model, the roller mounting frame 10 of the pipe feeding mechanism 3 is a Y-shaped structure, and the pipe roller 11 is rotatably mounted on the two branches of the Y-shaped structure.

[0037] Specifically, when the pipe to be cut enters the pipe feeding mechanism 3, the Y-shaped roller mounting frame 10 naturally supports the pipe through the included angle formed by the two branches, so that the pipe falls precisely between the pipe rollers 11 on the two branches. As the pipe rollers 11 rotate, the pipe moves along the feeding direction under the rolling support of the rollers. The Y-shaped branches limit the pipe from both sides to prevent the pipe from tipping over or deviating during transportation. At the same time, the rotating pipe rollers 11 reduce the frictional resistance with the pipe surface, ensuring that the pipe can be smoothly and steadily transported to the cutting area, providing a stable material supply for subsequent cutting operations.

[0038] In one embodiment of this utility model, the pipe feeding mechanism 3 has multiple pipe rollers 11, which are distributed at intervals along the branch length direction of the roller mounting frame 10.

[0039] Specifically, when the pipe to be cut enters the pipe feeding mechanism 3, multiple pipe rollers 11, which are spaced apart along the branch length of the roller mounting frame 10, jointly support the pipe. By distributing the weight of the pipe through multi-point support, the pipe is prevented from sagging in the middle due to its long length. As each pipe roller 11 rotates synchronously, multiple rollers apply driving force to the pipe from different positions, making the force on the pipe more uniform during the conveying process and reducing conveying jams caused by excessive local friction. At the same time, the spaced pipe rollers 11 can continuously provide stable support for the pipe, ensuring that the pipe moves smoothly along the branch direction of the roller mounting frame 10 and is finally accurately conveyed to the cutting area.

[0040] In actual use, the pipe feeding mechanism transports the pipe to be cut to the cutting area. The lifting cylinder of the protective device drives the protective frame to descend along the guide rail, so that the pipe groove positions the pipe and the spark shield covers the cutting area. The pipe cutting machine body completes the cutting, and the sparks are blocked by the protective shield. Then the protective frame rises and resets, and the feeding mechanism continues to transport the pipe for the next cut or remove the finished product.

[0041] In summary, the protective device for pipe cutting machines according to this utility model embodiment can effectively block the flying sparks generated during cutting, prevent the sparks from contacting the operator and causing burns, and reduce the possibility of sparks igniting surrounding flammable materials or damaging equipment parts, thus providing a more reliable safety guarantee for cutting operations.

[0042] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A protective device for a pipe cutting machine, characterized in that, include: Pipe cutting machine body (1); The protective device (2) includes a protective frame (6), a spark shield (7) installed on the protective frame (6), and a pipe groove (8). The bottom of the protective frame (6) is connected to a lifting cylinder (4), and the two sides are provided with guide rails (5) that slide with the pipe cutting machine body (1). The pipe feeding mechanism (3) includes a support (9), a roller mounting frame (10) mounted on the support (9), and a pipe roller (11) mounted on the roller mounting frame (10). The protective device (2) is set in the cutting area of ​​the pipe cutting machine body (1), and the pipe feeding mechanism (3) is used to transport the pipe to be cut to the cutting area.

2. The protective device for a pipe cutting machine according to claim 1, characterized in that, The spark shield (7) of the protective device (2) is an arc-shaped plate structure, and the concave surface of the arc-shaped plate structure faces the cutting wheel of the pipe cutting machine body (1).

3. The protective device for a pipe cutting machine according to claim 1, characterized in that, The protective device (2) has two guide rails (5), which are symmetrically distributed on both sides of the protective frame (6).

4. The protective device for a pipe cutting machine according to claim 1, characterized in that, The pipe groove (8) of the protective device (2) is a U-shaped through groove, and the opening direction of the U-shaped through groove is consistent with the feeding direction of the pipe feeding mechanism (3).

5. The protective device for a pipe cutting machine according to claim 1, characterized in that, The cylinder body of the lifting cylinder (4) of the protective device (2) is fixed to the bottom of the workbench of the pipe cutting machine body (1), and the piston rod is connected to the bottom center of the protective frame (6).

6. The protective device for a pipe cutting machine according to claim 1, characterized in that, The roller mounting frame (10) of the pipe feeding mechanism (3) is a Y-shaped structure, and the pipe roller (11) is rotatably mounted on the two branches of the Y-shaped structure.

7. The protective device for a pipe cutting machine according to claim 6, characterized in that, The pipe feeding mechanism (3) has multiple pipe rollers (11) that are spaced apart along the branch length direction of the roller mounting frame (10).