Magnetic filtering assembly, airflow filtering device and plate sawing equipment

Abstract

The utility model discloses a magnetic filtering assembly, an airflow filtering device and plate sawing equipment, the magnetic filtering assembly is used in an airflow channel, the magnetic filtering assembly comprises a cylinder body, a magnetic piece is arranged in the cylinder body, a cavity with an opening is formed between the magnetic piece and the cylinder body, the opening is communicated with the airflow channel, and the opening is communicated with the airflow channel. Therefore, the cavity can contain the metal scraps adsorbed by the magnetic part. The magnetic filter assembly provided by the utility model is simple in structure, and the magnetic piece in the cylinder can adsorb metal scraps in airflow and prevent the metal scraps from entering a subsequent pipeline. And due to the design of the cavity between the cylinder body and the magnetic piece, the adsorbed metal scraps can be concentrated at one position, and subsequent cleaning and maintenance are facilitated. By means of the design, the risk that metal chippings rub with the pipeline to generate sparks can be reduced, and therefore the overall safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet processing, in particular to a magnetic filtering component, an air flow filtering device and a sheet sawing device. Background Technique

[0002] In the furniture manufacturing industry, when processing thickened products, the workpieces often contain steel nails for fixing. During processing such as sawing and milling, these nails may be cut into small particles and then enter the dust collection pipeline together with the dust through the central vacuum cleaner. Since the wind speed inside the dust collection pipeline can reach 30 m / s, the continuously rubbing of such high-speed running metal particles against the inner wall of the pipeline is very likely to generate sparks. In the dust collection pipeline with a high dust density and continuous fresh air input, even a tiny spark may trigger a serious safety accident.

[0003] To address this safety hazard, some enterprises have equipped a spark detection and spraying system at important nodes of the central dust collection equipment. However, this passive preventive measure cannot fundamentally eliminate the safety hazard. In the field of safety control, actively eliminating hazards can achieve the safety management goal better than passive prevention. Therefore, there is an urgent need for a solution that can actively prevent steel metal particles from entering the subsequent pipeline. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a magnetic filtering component, an air flow filtering device and a sheet sawing device, which can effectively filter metal debris in the air flow and reduce the risk of generating sparks due to the friction between the metal debris and the pipe wall in the subsequent pipeline.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] A magnetic filtering component is used in an air flow channel. The magnetic filtering component includes: a cylinder body, a magnetic member is arranged inside the cylinder body, and a cavity with an opening is formed between the magnetic member and the cylinder body. The opening is communicated with the air flow channel, so that the cavity can accommodate the metal debris adsorbed by the magnetic member.

[0007] Wherein, the magnetic filtering component further includes: a support member, the support member is connected with the cylinder body and is used to fix the magnetic filtering component in the air flow channel.

[0008] Wherein, the support member includes a connecting rod and a fixing part. One end of the connecting rod is connected with the cylinder body, and the other end is connected with the fixing part.

[0009] An air flow filtering device includes: a pipeline component constituting an air flow channel, and a filter screen and the above-mentioned magnetic filtering component are sequentially arranged in the pipeline component along the air flow direction.

[0010] Among them, the pipeline component includes a first pipeline and a second pipeline that are connected in sequence.

[0011] Among them, the filter screen is arranged inside the first pipeline.

[0012] Among them, an inspection opening that can be opened and closed is provided on the side wall of the first pipeline, and the inspection opening and the filter screen are distributed in sequence along the air flow direction.

[0013] Among them, the magnetic filtration component is arranged inside the second pipeline.

[0014] Among them, an installation opening is provided on the side wall of the second pipeline, and the fixing part of the magnetic filtration component is connected to the installation opening through a threaded structure.

[0015] A sheet sawing device includes: a sawing device main body and the air flow filtration device as described above. An engine room is arranged inside the sawing device main body, the engine room is communicated with the first pipeline, and the second pipeline is communicated with a dust suction device.

[0016] The beneficial technical effects of the present utility model:

[0017] The magnetic filtration component provided by the present utility model has a simple structure. The magnetic parts inside the cylinder can adsorb metal debris in the air flow to prevent it from entering the subsequent pipeline. The cavity design between the cylinder and the magnetic parts enables the adsorbed metal debris to be concentrated in one place, facilitating subsequent cleaning and maintenance. This design can reduce the risk of generating sparks due to the friction between metal debris and the pipeline, thereby improving the overall safety. Compared with traditional passive protection measures (such as a spark detection system), this active prevention design can more effectively control potential safety hazards from the source. Description of the Drawings

[0018] Figure 1 It is a three-dimensional schematic diagram of the magnetic filtration component according to an embodiment of the present utility model;

[0019] Figure 2 It is a cross-sectional schematic diagram of the magnetic filtration component according to an embodiment of the present utility model;

[0020] Figure 3 For Figure 2 The enlarged schematic diagram of A;

[0021] Figure 4 It is a schematic diagram of the sheet sawing device and its air flow filtration device according to an embodiment of the present utility model.

[0022] Description of the reference numerals:

[0023] In the figure: 1 - cylinder body, 2 - magnetic part, 3 - cavity, 301 - opening, 4 - support part, 401 - connecting rod, 402 - fixing part, 5 - first pipeline, 6 - second pipeline, 7 - filter screen, 8 - inspection opening, 801 - third through hole, 802 - baffle plate, 9 - installation opening, 10 - sawing device main body, 11 - engine room, 12 - dust suction device, 1301 - first through hole, 1302 - second through hole, 14 - fixing seat, 1401 - internal thread hole, 15 - bolt. Detailed implementation manners

[0024] To make the technical solutions of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings, but the implementation manners of the present utility model are not limited thereto.

[0025] As Figures 1-4 shown, the magnetic filtering assembly provided in this embodiment is used in an air flow channel. The magnetic filtering assembly includes: a cylinder body 1, and a magnetic part 2 is arranged inside the cylinder body 1.

[0026] A cavity 3 with an opening 301 is formed between the magnetic part 2 and the cylinder body 1, and the opening 301 is communicated with the air flow channel, so that the cavity 3 can accommodate the metal debris adsorbed by the magnetic part 2.

[0027] When the air flow passes through the magnetic filtering assembly, the metal debris in the air flow will be adsorbed by the magnetic part 2. Due to the action of the air flow, these adsorbed metal debris will gradually move closer to the cavity 3. This design realizes the effective filtering of the metal debris in the air flow. Here, the metal debris refers to the debris that can be adsorbed by the magnetic part 2.

[0028] The structure of this magnetic filtering assembly is simple. By installing this magnetic filtering assembly at an appropriate position in the air flow channel, the flow of metal debris in the subsequent pipeline can be significantly reduced. This design can reduce the risk of generating sparks due to the friction between the metal debris and the pipeline, thereby improving the overall safety. Compared with the traditional passive protection measures (such as a spark detection system), this active prevention design can more effectively control potential safety hazards from the source.

[0029] In this embodiment, the cylinder body 1 can adopt a cylindrical structure, and its material can be a non-magnetic material, such as plastic or non-magnetic metal. The size of the cylinder body 1 can be adjusted according to the actual application scenario to adapt to different specifications of the air flow channel.

[0030] In this embodiment, the magnetic part 2 is arranged in a disc shape on the inner side of the front end of the cylinder body 1, and the diameter of the magnetic part 2 is slightly smaller than the inner diameter of the cylinder body 1. A space is left between the magnetic part 2 and the inner wall of the cylinder body 1, and this space constitutes the cavity 3 with the opening 301.

[0031] In this embodiment, the magnetic member 2 can be a permanent magnet, which is used to adsorb the metal debris doped in the dust in the air flow channel.

[0032] In other embodiments, the magnetic member 2 can be strip-shaped, and a plurality of them are arranged at intervals along the circumferential direction on the inner wall of the cylinder 1. The plurality of magnetic members 2 are annularly distributed, and the space left between them is the cavity 3 with an opening 301.

[0033] In this embodiment, when the air flow passes through the magnetic filtration assembly, the metal debris in the air flow will be adsorbed by the magnetic member 2. Under the combined action of the magnetic force and the air flow force, these adsorbed metal debris will gradually move closer to the cavity 3.

[0034] The magnetic force adsorbs and holds the debris on the surface of the magnetic member 2, while the air flow force pushes the debris to move along the surface of the magnetic member 2. Eventually, the metal debris will gather at the position where the magnetic force and the air flow force are balanced, usually in the edge area of the magnetic member 2, that is, the position where the cavity 3 is located.

[0035] The cavity 3 is the space between the magnetic member 2 and the cylinder 1. This space is exactly located in the edge area of the magnetic member 2, that is, the place where the metal debris finally gathers. Such a design not only ensures the effective adsorption of the metal debris, but also makes these debris concentrated in a specific area, which is convenient for subsequent cleaning and maintenance.

[0036] In this embodiment, the magnetic member 2 is flush with the top surface of the cylinder 1, so that the passing air flow can approach the top surface of the magnetic member 2 to the greatest extent. At the same time, the flush design can also reduce the air flow resistance.

[0037] In this embodiment, in order to realize the detachable connection of the magnetic member 2, a fixing seat 14 is provided on the inner bottom side of the cylinder 1. The fixing seat 14 is located between the magnetic member 2 and the cylinder 1.

[0038] Specifically, an internal threaded hole 1401 is provided at the middle position of the fixing seat 14. A first through hole 1301 and a second through hole 1302 with different diameters penetrate through the middle position of the disc-shaped magnetic member 2, forming a stepped structure.

[0039] After the bolt 15 is screwed into the internal threaded hole 1401 of the fixing seat 14 through the two through holes (1301 and 1302) of the magnetic member 2, the head of the bolt 15 presses against the step of the second through hole 1302. This design is beneficial to the disassembly of the magnetic member 2 and is convenient for the regular cleaning of the metal debris around the magnetic member 2.

[0040] In this embodiment, the magnetic filtration assembly further includes a support member 4. The support member 4 is connected to the cylinder 1 and is used to fix the magnetic filtration assembly in the air flow channel. The support member 4 includes a connecting rod 401 and a fixing portion 402.

[0041] One end of the connecting rod 401 is vertically connected to the cylinder 1, and the connection method can be welding, threaded connection or other reliable fixing methods.

[0042] The fixing portion 402 is connected to the other end of the connecting rod 401. The fixing portion 402 may be a cap with internal threads.

[0043] The airflow channel is provided with an external thread channel (i.e., an installation port 9 with external threads) that matches the fixing portion 402. During installation, the connecting rod 401 with the cylinder 1 and the magnetic member 2 connected to one end thereof extends into the airflow channel, and the fixing portion 402 at the other end is screwed into the external thread channel, thereby firmly fixing the entire magnetic filter assembly on the airflow channel.

[0044] The provision of the support member 4 can not only stabilize the position of the magnetic filter assembly, but also facilitate the installation and disassembly of the magnetic filter assembly, which is beneficial to daily cleaning and maintenance work.

[0045] In this embodiment, the connection between the connecting rod 401 and the cylinder 1 is taken as an example of a threaded connection:

[0046] The cylinder 1 has a front end and a rear end, and an internal threaded hole is provided at the rear end of the cylinder 1 (not shown in the drawings). One end of the connecting rod 401 is processed with an external thread matching the internal threaded hole at the rear end of the cylinder 1 (not shown in the drawings). One end of the connecting rod 401 is screwed into the internal threaded hole of the cylinder 1 to achieve a reliable connection between the two.

[0047] In this embodiment, an airflow filtering device is also provided, which includes a pipe assembly forming an airflow channel. A filter screen 7 and the aforementioned magnetic filtering assembly are sequentially arranged in the pipe assembly along the airflow direction.

[0048] The filter screen 7 is arranged at the front end of the pipeline assembly, near the airflow inlet, and is used to filter the larger strip and block residues in the airflow, thereby reducing the burden on the subsequent pipelines and preventing the residues from hitting the cylinder 1 and the magnetic member 2 therein and causing adverse effects thereon.

[0049] The magnetic filter assembly is located behind the filter screen 7, and the airflow passes through the area where the magnetic filter assembly is located after passing through the filter screen 7. The magnetic filter assembly is used to absorb metal debris in the airflow.

[0050] This design can achieve graded filtration of different types of impurities, improving the filtration effect. The combined use of the filter screen 7 and the magnetic filter assembly can effectively prevent metal debris from entering the subsequent pipeline, reducing the fire hazard.

[0051] In this embodiment, the pipeline assembly includes a first pipeline 5 and a second pipeline 6 which are connected in sequence.

[0052] The first pipeline 5 may be a pipeline section directly connected to the plate processing equipment, and the second pipeline 6 is communicated with the first pipeline 5. The two pipelines may be tightly connected by flanges or other connection methods.

[0053] This segmented pipeline design facilitates the installation and maintenance of the airflow filtering device, and also provides installation space for filtering components (filter screen 7 and magnetic filtering components) with different functions.

[0054] In other embodiments, the first pipe 5 and the second pipe 6 may also be non-independent pipe segments, and may be a continuous pipe divided into two parts to respectively install the filter screen 7 and the magnetic filter assembly.

[0055] In this embodiment, the filter screen 7 is arranged in the first pipe 5, near the air flow inlet. Specifically, the filter screen 7 can be made of a material such as a metal wire mesh, installed on the inner side of the first pipe 5, and used to preliminarily filter the larger strip and block-shaped residual materials. The mesh size of the filter screen 7 can be selected according to actual needs to meet different filtering requirements.

[0056] The filter screen 7 is arranged in the first pipe 5, so that larger residual materials can be filtered out at the initial stage when dust enters the pipe assembly, thereby reducing the burden on subsequent pipes and improving the efficiency of the entire airflow filtering device.

[0057] In this embodiment, in order to facilitate the cleaning of the filter screen 7 and the residual material in the first pipe 5, an openable and closable inspection port 8 is provided on the side wall of the first pipe 5. The inspection port 8 and the filter screen 7 are sequentially distributed along the airflow direction. The operator can regularly check and clean the residual material in the filter screen 7 and the first pipe 5 through the inspection port 8 without disassembling the entire pipe assembly, thereby simplifying the maintenance process.

[0058] In this embodiment, the inspection port 8 includes a third through hole 801 penetrating the side wall of the first pipe 5 and an openable and closable baffle 802 provided at the third through hole 801. The baffle 802 can be connected to the side wall of the first pipe 5 in a hinged manner. When the filter screen 7 needs to be inspected or cleaned, the baffle 802 only needs to be opened.

[0059] In this embodiment, the magnetic filter assembly is arranged in the second pipe 6. This can prevent large pieces of residual material from interfering with the operation of the magnetic filter assembly and improve the filtering effect of metal debris. Since the airflow in the second pipe 6 has been preliminarily filtered, large pieces of residual material are prevented from directly passing through the magnetic filter assembly, thereby preventing the residual material from damaging the magnetic filter assembly.

[0060] In this embodiment, in order to facilitate the installation and maintenance of the magnetic filter assembly, a mounting port 9 with external threads is provided through the side wall of the second pipe 6. The fixing portion 402 of the magnetic filter assembly is connected to the mounting port 9 through a threaded structure, which can be easily installed, disassembled and cleaned. The mounting port 9 is the aforementioned external threaded channel.

[0061] In this embodiment, a plate sawing device is also provided, which includes a sawing device body 10 and the aforementioned airflow filtering device.

[0062] A cabin 11 is disposed in the sawing device body 10 , and the cabin 11 is an area where dust and residual materials are generated.

[0063] The cabin 11 is in communication with the first pipeline 5, ensuring that the dust and residual materials generated during the sawing process can be sucked into the air flow filtering device.

[0064] The second pipeline 6 is connected to a dust collecting device 12. The dust collecting device 12 provides negative pressure to drive the airflow from the cabin 11 through the airflow filtering device, and finally is collected or discharged.

[0065] This design achieves effective filtration of the residual material and metal debris generated during the plate sawing process:

[0066] 1. Under the action of the dust collecting device 12, the dust and residual materials generated in the cabin 11 enter the first pipe 5;

[0067] 2. In the first pipe 5, the filter screen 7 filters out larger residual materials;

[0068] 3. The airflow enters the second pipe 6, and the magnetic filter assembly further filters the metal debris in the dust;

[0069] 4. Finally, the double-filtered dust enters the subsequent pipeline of the dust collection device 12 along with the air flow.

[0070] This multi-stage filtration design not only improves the filtration effect, but also greatly reduces the risk of metal debris generating sparks in subsequent pipelines, thereby improving the safety and reliability of the plate sawing equipment.

[0071] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. A magnetic filtering component for use within an air flow passage, characterized in that, The magnetic filtering assembly includes: a cylinder body (1), a magnetic member (2) is provided inside the cylinder body (1), a cavity (3) with an opening is formed between the magnetic member (2) and the cylinder body (1), and the opening is communicated with the air flow channel, so that the cavity can accommodate metal debris adsorbed by the magnetic member (2).

2. The magnetic filtration assembly according to claim 1, characterized in that, The magnetic filtering assembly further includes: a support member (4), the support member (4) is connected to the cylinder body (1) and is used for fixing the magnetic filtering assembly in the air flow channel.

3. The magnetic filtering component according to claim 2, characterized in that, The support member (4) includes a connecting rod (401) and a fixing portion (402), one end of the connecting rod (401) is connected to the cylinder body (1), and the other end is connected to the fixing portion (402).

4. An air flow filtering device, characterized in that, including: A pipe assembly constituting an air flow channel, a filter screen (7) and the magnetic filtering assembly according to any one of claims 1 to 3 are sequentially provided in the pipe assembly along the air flow direction.

5. The airflow filtering device according to claim 4, characterized in that, The pipe assembly includes a first pipe (5) and a second pipe (6) that are sequentially communicated.

6. The air flow filtering device according to claim 5, characterized in that, The filter screen (7) is provided in the first pipe (5).

7. The airflow filtering device according to claim 6, characterized in that, An inspection opening (8) that can be opened and closed is provided on the side wall of the first pipe (5), and the inspection opening (8) and the filter screen (7) are sequentially distributed along the air flow direction.

8. The air flow filtering device according to claim 6, wherein The magnetic filtering assembly is provided in the second pipe (6).

9. The air flow filtering device according to claim 8, characterized in that, An installation opening (9) is provided on the side wall of the second pipe (6), and the fixing portion (402) of the magnetic filtering assembly is connected to the installation opening (9) through a threaded structure.

10. A sheet sawing device, characterized in that, including: A sawing device main body (10) and the air flow filtering device according to any one of claims 5 to 9, a cabin (11) is provided inside the sawing device main body (10), the cabin (11) is communicated with the first pipe (5), and the second pipe (6) is communicated with a dust suction device (12).

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