Novel dust collecting device

Abstract

The utility model relates to a novel dust collection device which comprises a dust extraction assembly which is arranged on a water bed and located on the lower portion of a piece to be cut, a dust extraction opening of the dust extraction assembly is located in the center of the water bed, and a cavity formed by the piece to be cut and a first partition plate on the water bed serves as a dust collection point. And the opening direction of the dust extraction opening faces the cutting part of the to-be-cut piece. The dust suction device has the beneficial effects that dust is sucked below the to-be-cut piece, so that the dust can be prevented from escaping around by low air volume, and meanwhile, the dust suction effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, in particular to a novel dust collecting device designed to ensure smoke capture and smooth flow of smoke channels during the smoke treatment process of plasma cutting. Background Art

[0002] Traditional dust collection methods for plasma cutting machines generally use side suction or a combination of side blowing and side suction. Due to the maximum plate width limitation, the side suction hood and side blowing port attached to the trolley can only be placed on the two edges of the water bed. Because the side suction hood port is open, it is particularly ineffective in collecting dust and smoke generated under the plate during cutting. Furthermore, when cutting narrow plates, the side suction hood and side blowing port are far away from the diffusion zone of the smoke, whether generated on or under the plate. This greatly reduces the dust collection effect of the suction and blowing, resulting in poor results even with high air volume. During the cutting process, workers will pile cutting waste on both sides of the water bed, which will also block the airflow path of the side suction hood and side blowing port, further affecting the dust collection effect. Utility Model Content

[0003] The utility model aims at solving the technical problems existing in the prior art and provides a novel dust collecting device, which can collect dust at the dust source point under the cut plate and prevent the dust from escaping by using a low air volume.

[0004] The utility model solves the above-mentioned technical problems with the following technical solutions: a novel dust collecting device comprising: a dust extraction assembly disposed on a water bed and located below the workpiece to be cut, such that a dust extraction port of the dust extraction assembly is located at the center of the water bed, so that a cavity formed by the workpiece to be cut and a first partition on the water bed serves as a dust collection point;

[0005] The opening direction of the dust extraction port is toward the cutting portion of the workpiece to be cut.

[0006] As a further technical solution, a plurality of dust extraction ports are provided at equal intervals along the length direction of the water bed, and the dust extraction ports are arranged parallel to the workpiece to be cut.

[0007] As a further technical solution, the dust extraction assembly includes a plurality of dust suction pipes, a plurality of bent pipes, and a slideway, and the dust outlet end of the dust suction pipe is connected to the slideway through the bent pipe;

[0008] The dust extraction port is provided on the dust suction pipe and is located on a side away from the dust outlet end. One dust extraction port corresponds to one dust suction pipe and one bent pipe.

[0009] As a further technical solution, a plurality of the dust suction pipes are arranged at equal intervals along the length direction of the water bed, and each water tank of the water bed is provided with a dust suction pipe.

[0010] As a further technical solution, the dust suction pipe is located below the water surface of the water bed, and there is a gap between the upper end surface of one end of the dust suction port and the bottom end surface of the workpiece to be cut, so that the dust-containing flue gas under the lower part of the workpiece to be cut enters the dust suction pipe through the dust suction port under the action of negative pressure.

[0011] As a further technical solution, it also includes a dust collecting member that is slidably and sealingly connected to the slideway, and the dust outlet of the dust collecting member is connected to the dust collector, so that the dust-containing fume under the lower part of the workpiece to be cut enters the dust collection pipe under the action of the dust collecting member;

[0012] The dust collecting piece is connected to the carriage of the plasma cutting machine and moves synchronously.

[0013] As a further technical solution, the dust suction port of the dust suction piece simultaneously covers the dust outlet ends of at least four adjacent dust suction pipes.

[0014] As a further technical solution, a soft sealing strip is provided along the circumference of one end of the dust collecting member that is slidably connected to the slideway.

[0015] The beneficial effects of the utility model are:

[0016] 1. By extracting dust from under the workpiece to be cut, low air volume can be achieved to prevent dust from escaping and improve the dust extraction effect;

[0017] 2. Multiple dust extraction ports are located below the workpiece to be cut and in the center of the water bed. That is, on the one hand, the dust extraction ports are aligned with the cutting path during the cutting process, and on the other hand, the dust extraction ports are opposite to the dust source of the workpiece to be cut, further enhancing the dust extraction effect. In addition, regardless of whether the workpiece to be cut is a wide or narrow plate, the dust extraction ports are not far from the dust generation point.

[0018] 3. Because the workpiece to be cut, the first baffle on the waterbed and the water surface form a relatively closed square tube-shaped box space, under the negative pressure of the induced draft fan and in conjunction with the structural design of the dust extraction port being located near the dust source, the dust-laden flue gas in the closed square tube-shaped box space will be easily sucked into the dust extraction port and then into the dust collection pipe;

[0019] 4. The structural design of the dust collecting part and the dust extraction assembly allows the dust-laden flue gas to be sucked into the dust collecting part in real time and then enter the dust collector. At the same time, the design of the soft sealing strip can prevent air from entering the dust collecting part as much as possible during the sliding process of the dust collecting part. In addition, the suction force of the dust collecting part can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a new dust collecting device of the present invention when in use;

[0021] Figure 2 This is a schematic diagram of the partial structure of a new dust collecting device of the present utility model;

[0022] Figure 3 、 Figure 4 They are partial structural schematic diagrams of a novel dust collecting device of the present invention installed on a water bed from different perspectives.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] Dust extraction component 1, dust extraction port 11, dust suction pipe 12, protrusion 121, bend pipe 13, slideway 14,

[0025] Water bed 2, first baffle 21, second baffle 22;

[0026] Parts to be cut 3, dust collection parts 4, soft sealing strips 41, and a trolley 5. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0029] In the description of this application, the term "for example" is used to mean "used as an example, illustration or explanation". Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. In order to enable any person skilled in the art to implement and use the present invention, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

[0030] Example 1

[0031] Conventional dust removal processes use large hoods installed on both sides of the plasma cutter to capture dust, and are equipped with a network of pipes, dust removal ground stations, fans, and other equipment to draw air for dust removal. Because large hoods require large air volumes, construction costs are high, operating energy consumption is high, and operating costs are also relatively high. Therefore, this embodiment provides a new dust collection device that works by collecting dust from the dust source under the cut plate to improve dust collection efficiency. This solution uses low air volumes to prevent dust from escaping, and the extracted dust-laden airflow is then piped into the dust collector.

[0032] See Figure 1 、 Figure 3 、 Figure 4 This embodiment specifically comprises a dust extraction assembly 1, mounted on a water bed 2 and positioned below a workpiece 3 to be cut. The dust extraction port 11 of the dust extraction assembly 1 is positioned at the center of the water bed 2, with the cavity formed between the workpiece 3 and a first baffle 21 on the water bed 2 serving as a dust collection point. The opening of the dust extraction port 11 faces the cutting portion of the workpiece 3, allowing dust-laden fumes generated during the cutting process to be collected into the dust extraction port 11 in real time. This technical solution offers low construction costs, low operating energy consumption, and low costs.

[0033] In order to reduce weight, reduce friction on the plasma cutting system and increase service life, the dust extraction component 1 is made of steel plate material.

[0034] In order to save materials and reduce the weight of the equipment, in the specific implementation process, a number of dust extraction ports 11 are provided at equal intervals along the length direction of the water bed 2, and the dust extraction ports 11 are arranged parallel to the workpiece 3 to be cut, so as to facilitate the collection of dust-containing fumes generated during the cutting process.

[0035] In the specific implementation process, see Figure 1-Figure 4 The dust extraction assembly 1 includes a plurality of dust suction pipes 12, a plurality of bent pipes 13, and a slide 14. The dust outlet end of the dust suction pipe 12 is connected to the slide 14 through the bent pipe 13. The outlet end of the bent pipe 13 is clamped on the slide 14 and the opening direction is upward;

[0036] For example, the slide 14 is provided with a plurality of openings to match a plurality of the curved pipes 13, that is, one curved pipe 13 is matched with one opening on the slide 14 to clamp the curved pipe 13 in the opening. It can be explained that the slide 14, the curved pipe 13, and the dust collection pipe 12 can be integrally formed;

[0037] The dust extraction port 11 is provided on the dust suction pipe 12 and is located on the side away from the dust outlet end. One dust extraction port 11 corresponds to one dust suction pipe 12 and one curved pipe 13, that is, one dust suction pipe 12 and one curved pipe 13 are regarded as a unit A, so that several units A are arranged and connected to one slide 14 at the same time to form the dust extraction component 1.

[0038] In the specific implementation process, see Figure 1-Figure 4 A plurality of the dust suction pipes 12 are arranged at equal intervals along the length direction of the water bed 2 , and a dust suction pipe 12 is provided in each water tank of the water bed 2 .

[0039] One dust suction pipe 12 is provided between each adjacent first partition plate 21 along the length direction of the water bed 2 .

[0040] It can be explained that each water trough is formed by adjacent first partitions 21, and the dust suction port 11 of the dust suction pipe 12 is located in the middle of the water bed 2 (that is, the middle of the workpiece 3 to be cut). It can be seen that the length of the dust suction pipe 12 is slightly larger than half the length of the first partition 21. During the cutting process, for example, when the cutting machine moves along the length direction of the water bed 2 to cut the workpiece 3 to be cut, the cutting port is always located at the lower part of the cutting path to quickly and in real time collect the dust-containing flue gas generated at the lower part of the workpiece 3 to be cut.

[0041] A relatively closed box space, for example a square tube-shaped box space, is formed between the workpiece 3 to be cut, the first partition 21 and the water surface. The space is sealed by water. Therefore, in order to improve the dust extraction efficiency, the dust suction pipe 12 is located below the water surface of the water bed 2 (that is, the dust suction pipe 12 is immersed in the water in the box space), and there is a gap between the upper end surface of one end of the dust extraction port 11 and the bottom end surface of the workpiece 3 to be cut, so that the dust-containing flue gas at the bottom of the workpiece 3 to be cut enters the dust suction pipe 12 through the dust extraction port 11 under the action of negative pressure.

[0042] Further, see Figure 2 、 Figure 4 The end of the dust suction pipe 12 facing the workpiece 3 to be cut is provided with a hollow raised portion 121, and a gap is formed between the upper end surface of the raised portion 121 and the bottom end surface of the workpiece 3 to be cut. It can be explained that the raised portion 121 is also immersed in water, and the dust extraction port 11 is provided on the raised portion 121 and the opening direction is facing the workpiece 3 to be cut. The raised portion 121 is connected to the dust suction pipe 12. For example, the raised portion 121 and the dust suction pipe 12 are integrally formed and are both made of steel plate.

[0043] See Figure 1 、 Figure 3The workpiece 3 to be cut is placed on the grid-type support frame 22 on the water bed, and the top surface of the grid-type support frame 22 is higher than the top surface of the first partition 21, that is, the dust extraction port 11 is located in the space enclosed by the second partition 22, the workpiece 3 to be cut and the first partition 21.

[0044] In the specific implementation process, see Figure 1 、 Figure 2 The dust collecting device also includes a dust collecting member 4 slidably connected to the slide 14, and the dust outlet of the dust collecting member 4 is connected to the dust collector, so that the dust-containing flue gas at the lower part of the workpiece 3 to be cut enters the dust collection pipe 12 under the action of the dust collecting member 4, that is, under the action of power, the dust-containing flue gas passes through the dust collection pipe 12 and the dust collecting member 4 in turn and then enters the dust collector; and in order to collect the dust-containing flue gas at the lower part of the workpiece 3 to be cut in real time during the working process of plasma cutting, the dust collecting member 4 is connected to the trolley 5 of the plasma cutting machine and moves synchronously.

[0045] In order to ensure negative pressure while maximally absorbing the dust-containing fume generated at the lower part of the workpiece 3 to be cut during the operation of the plasma cutting piece, the suction port of the dust suction piece 4 simultaneously covers the dust outlet ends of at least four adjacent dust suction pipes 12.

[0046] See Figure 1 In order to prevent the ambient air from entering during the sliding process of the dust collecting member 4 and affecting the collection of dust-laden fumes by the dust extraction port 11, a soft sealing strip 41 is provided along the circumference of one end of the dust collecting member 4 that is slidably connected to the slideway 14. That is, a soft sealing strip 41 is provided around the end of the dust collecting member 4 that abuts against the slideway 14.

[0047] The dust collecting member 4 is a dust collecting hood, and the width of the dust collecting hood is slightly smaller than the width of the slide 14, but larger than the width of each opening on the slide 14, so that the opening on the slide 14 is covered in the dust collecting hood.

[0048] The utility model is implemented as follows: during the cutting process of the workpiece 3 to be cut, the dust-containing fume generated below the workpiece 3 enters the dust extraction port 11, the dust suction pipe 12, the elbow 13, the dust suction piece 4 in sequence under the action of negative pressure and is then processed by the dust collector.

[0049] The utility model collects dust under the workpiece 3 to be cut, that is, the cavity formed by the workpiece 3 to be cut and the first partition 21 is used as a dust collecting point, and the cavity is used as an internal dust collecting device to be connected to the dust removal duct suction port. The dust collecting method is active internal dust collection, thereby realizing miniaturized built-in dust collection near the dust source point, which not only has better dust collection effect, but also has small air volume. The total dust removal air volume of the plasma cutting machine is only about one-third of the traditional large hood dust collection method, and leaves about 15% redundancy, with significant energy-saving effect and low operating cost.

[0050] The new dust collector 4 is compact, made of thin steel plate, and is lightweight. It can be attached to the travel mechanism of the plasma cutting machine's carriage 5. Due to its compact size and light weight, the load borne by the carriage 5 is relatively small compared to other loads during travel, and does not affect the travel of the carriage 5 or the cutting accuracy.

[0051] Secondly, this device uses a soft rubber seal, which has good sealing tightness and reliable sealing performance. At the same time, the rubber seal is a soft seal, which will not cause any wear to the moving parts, and does not require frequent maintenance and replacement of parts, so the operating cost is low. The device is simple and practical, and easy to repair and maintain.

[0052] It should be noted that, in the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0053] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0054] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A new type of dust collecting device, characterized in that: include A dust extraction assembly (1) is provided on the water bed (2) and is located below the workpiece (3) to be cut, such that the dust extraction port (11) of the dust extraction assembly (1) is located at the center of the water bed (2), so that a cavity formed by the workpiece (3) to be cut and the first partition (21) on the water bed (2) serves as a dust collection point; The opening direction of the dust extraction port (11) faces the cutting portion of the workpiece (3) to be cut.

2. A novel dust collecting device according to claim 1, characterized in that: A plurality of dust extraction ports (11) are provided at equal intervals along the length direction of the water bed (2), and the dust extraction ports (11) are arranged parallel to the piece (3) to be cut.

3. A novel dust collecting device according to claim 1, characterized in that: The dust extraction assembly (1) comprises a plurality of dust suction pipes (12), a plurality of curved pipes (13), and a slideway (14); the dust outlet end of the dust suction pipe (12) is connected to the slideway (14) via the curved pipe (13); The dust extraction port (11) is provided on the dust suction pipe (12) and is located on a side away from the dust outlet end. One dust extraction port (11) corresponds to one dust suction pipe (12) and one bent pipe (13).

4. A novel dust collecting device according to claim 3, characterized in that: A plurality of the dust suction pipes (12) are arranged at equal intervals along the length direction of the water bed (2), and one dust suction pipe (12) is provided in each water tank of the water bed (2).

5. A novel dust collecting device according to claim 4, characterized in that: The dust suction pipe (12) is located below the water surface of the water bed (2) and is provided with a gap between the upper end surface of one end of the dust suction port (11) and the bottom end surface of the workpiece (3) to be cut, so that dust-containing flue gas below the workpiece (3) to be cut enters the dust suction pipe (12) through the dust suction port (11) under the action of negative pressure.

6. A novel dust collecting device according to any one of claims 3 to 5, characterized in that: It also includes a dust collecting member (4) slidably connected to the slideway (14), and the dust outlet of the dust collecting member (4) is connected to the dust collector, so that the dust-containing fume under the part to be cut (3) enters the dust collecting pipe (12) under the action of the dust collecting member (4); The dust collecting member (4) is connected to the trolley of the plasma cutting machine and moves synchronously.

7. A novel dust collecting device according to claim 6, characterized in that: The dust suction port of the dust suction member (4) simultaneously covers the dust outlet ends of at least four adjacent dust suction pipes (12).

8. A novel dust collecting device according to claim 6, characterized in that: One end of the dust collecting member (4) that is slidably connected to the slideway (14) is provided with a soft sealing strip (41) along its circumference.

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