A high negative pressure dust collector special for welding robot
By adopting a high negative pressure dust collector with a flat square frame filter element and a back-flushing chamber structure, the problems of low purification efficiency and clogging in welding robot dust collectors have been solved, achieving efficient dust treatment and saving equipment space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MEGAUNITY ENVIRONMENTAL SOLUTIONS CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-26
Smart Images

Figure CN224404694U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of negative pressure dust removal technology, and relates to a high negative pressure dust collector for welding robots. Background Technology
[0002] With the continuous expansion of the welding robot market and the doubling of robot density in manufacturing, welding robots will be applied in fields such as automobiles, motorcycles, shipbuilding, power, nuclear energy, and petrochemicals, bringing broader market opportunities to the welding industrial robot industry. At the same time, the welding process generates a large amount of dust. With increasing environmental awareness, related companies are paying more attention to waste gas emissions during production. High-negative-pressure dust collectors specifically designed for welding robots will become essential products to solve the problem of welding fume treatment during robotic welding.
[0003] Currently, most existing technologies use bag filters or cartridge filters to remove dust and filter air. However, existing bag filters have low dust removal efficiency, and the dust accumulated on the filter bags is not easy to fall off, causing blockage. Cartridge filters have small pleats in their ordinary round filter cartridges, which increases the interception surface area, but is not conducive to backflushing to remove dust.
[0004] Based on this, this utility model proposes a high negative pressure dust collector with a simple structure that uses a plate filter element. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the aforementioned background technology and provide a high negative pressure dust collector specifically for welding robots. This dust collector adopts a unique flat square frame filter element, which ensures purification efficiency while greatly saving equipment space. Furthermore, the vertical installation of the dust interception surface facilitates dust removal. The uniquely designed back-blowing chamber structure features simple structure, small footprint, and filter elements that are not easily clogged.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a high negative pressure dust collector for welding robots, including a housing, in which a top section, a purification section, a dust removal section, and a fan section are arranged sequentially from top to bottom. The top section, purification section, dust removal section, and fan section are arranged in three sections. The top section and fan section are respectively located in the upper and lower sections, and the purification section and dust removal section are located in the middle section and within one section. The top section is equipped with an electrical control box and a back-blowing component A of the back-blowing mechanism. The back-blowing component B of the back-blowing mechanism is located in the middle section and within the purification section. Behind the section, back-flushing component A is positioned above back-flushing component B and is connected to back-flushing component B. A partition is installed between the top section and the purification section. The dust removal section is positioned below the purification section. The bottom of back-flushing component B is connected to the fan section, but back-flushing component B is not connected to the dust removal section. Several plate filter elements are installed inside the purification section, and these plate filter elements are equidistantly arranged. Doors are installed in both the middle section and the bottom section of the fan section. An air inlet is provided on the door of the middle section, and a flexible hose connector is installed on the air inlet. A spark baffle is installed between the air inlet and the plate filter element.
[0007] The dust removal section includes a dust collection funnel and a dust collection drawer. The dust collection funnel is located below the purification section, and the dust collection drawer is located below the dust collection funnel. The dust collection drawer is located on the partition between the dust removal section and the fan section. The dust collection funnel is connected and fixed to the inner wall of the box.
[0008] The backflush mechanism includes backflush component A and backflush component B. Backflush component A includes a backflush housing, which is connected to the compressed air inlet pipe. Several air pipes are installed inside the backflush housing corresponding to the nozzle. Each air pipe is connected to the compressed air inlet pipe, and a solenoid valve is installed on each air pipe to adjust the opening and closing of the air pipe.
[0009] The backflush assembly B includes several nozzles, each nozzle has a fixed bracket at its bottom, and the bottom of the nozzle is connected to the housing via the fixed bracket and bolts. Each nozzle is equipped with several nozzles, with the nozzles facing the inner wall of the housing.
[0010] The number of air tubes and nozzles is the same.
[0011] The nozzle and the fixed support are in a vertical structure.
[0012] Fans are installed within the fan section.
[0013] The electrical control box is equipped with a PLC control system, which is part of the existing equipment.
[0014] Furthermore, the ash receiving funnel is connected and fixed to the inner wall of the box. This can be achieved through various methods such as welding or bolts.
[0015] Furthermore, an air outlet is installed on the bottom section door of the fan section.
[0016] Furthermore, the fan is a high-pressure fan.
[0017] Furthermore, it is preferable to have four air inlets.
[0018] Furthermore, the plate filter element is a flat square frame filter element; the filter element is type H3.
[0019] Furthermore, the opening and closing end of the container and the door is connected by a snap fastener. Universal wheels are installed at the bottom of the container.
[0020] The PLC control system is connected to the backflushing mechanism and the blower respectively. There are no restrictions on the specific model, as long as it can realize their working functions.
[0021] The advantages of this utility model compared with the prior art are:
[0022] This utility model provides a high-negative-pressure dust collector specifically for welding robots, used for fume purification in the field of welding industrial robots. The welding robot mentioned in this utility model is an existing commercially available product and mature equipment. The fume gas enters the purification section through the air inlet on the side of the housing. After being filtered by the plate filter element, the clean gas is discharged by a high-negative-pressure fan. Compressed air can be used to backflush the plate filter element at regular intervals, shaking off the dust adsorbed on the filter element into the dust collection drawer. The entire device can follow the movement of the robot arm to treat welding fumes. It features a simple structure, small footprint, and filter elements that are not easily clogged. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0024] Figure 1 This is a front view of a high negative pressure dust collector for welding robots according to this utility model.
[0025] Figure 2 yes Figure 1 AA sectional view.
[0026] Figure 3 This is a right view of a high negative pressure dust collector for welding robots according to this utility model.
[0027] Figure 4 This is a left view of a high negative pressure dust collector for welding robots according to this utility model.
[0028] Figure 5 This is a perspective view of a high negative pressure dust collector for welding robots according to this utility model.
[0029] Figure 6 This is a top view of a high negative pressure dust collector for welding robots according to this utility model.
[0030] Figure 7 This is a schematic diagram of a plate-type filter element.
[0031] Figure 8 This is a 3D diagram of the backflush mechanism.
[0032] Figure 9 This is a rear view of the backflush mechanism.
[0033] In the diagram: 1. Purification section, 2. Dust removal section, 3. Backflushing assembly A, 4. Fan section, 5. Air inlet, 6. Backflushing assembly B, 7. Air outlet, 8. Electrical control box, 9. Fan, 10. Plate filter element, 11. Dust collection drawer, 12. Backflushing mechanism, 13. Hook and loop, 14. Backflushing housing, 15. Solenoid valve, 16. Fixing bracket, 17. Nozzle. Detailed Implementation
[0034] The present invention will be further described below with reference to the accompanying drawings, but the present invention is not limited to the following embodiments.
[0035] Example 1
[0036] A high negative pressure dust collector specifically for welding robots, such as Figure 1-9 As shown, the enclosure includes a housing. Inside the housing, from top to bottom, are arranged a top section, a purification section 1, a dust removal section 2, and a fan section 4. These sections are arranged in three sections. The top section and fan section 4 are located in the upper and lower sections, respectively. Purification section 1 and dust removal section 2 are located in the middle section and are within the same section. The top section houses the electrical control box 8 and the back-flushing assembly A3 of the back-flushing mechanism 12. The back-flushing assembly B6 of the back-flushing mechanism 12 is located in the middle section and behind purification section 1. Back-flushing assembly A3 is positioned behind back-flushing assembly B6. Above, and back-flushing assembly A3 is connected to back-flushing assembly B6. A partition is set between the top section and the purification section 1. The dust removal section 2 is set below the purification section 1. The bottom of back-flushing assembly B6 is connected to the fan section 4. Back-flushing assembly B6 is not connected to the dust removal section 2. Several plate filter elements 10 are set inside the purification section 1. Several plate filter elements 10 are set at equal intervals. The middle section and the bottom section of the fan section 4 are both equipped with a box door. The box door of the middle section is equipped with an air inlet 5. A hose connector is set on the air inlet 5. A spark baffle is set between the air inlet 5 and the plate filter element 10.
[0037] Backflush component B6 is connected to purification section 1.
[0038] The dust removal section 2 includes a dust collection funnel and a dust collection drawer 11. The dust collection funnel is located below the purification section 1, and the dust collection drawer 11 is located below the dust collection funnel. The dust collection drawer 11 is located on the partition between the dust removal section 2 and the fan section 4. The dust collection funnel is connected and fixed to the inner wall of the box.
[0039] The backflush mechanism 12 includes a backflush component A3 and a backflush component B6. The backflush component A3 includes a backflush housing 14, which is connected to a compressed air inlet pipe. Several air pipes are arranged inside the backflush housing 14 corresponding to the nozzle. Each air pipe is connected to the compressed air inlet pipe, and a solenoid valve 15 is provided on each air pipe to adjust the opening and closing of the air pipe.
[0040] The backflush assembly B6 includes several nozzles, each nozzle has a fixed bracket 16 at its bottom, and the bottom of the nozzle is connected to the housing via the fixed bracket 16 and bolts. Each nozzle is provided with several nozzles 17, and the nozzles 17 are positioned facing the inner wall of the housing.
[0041] The number of air tubes and nozzles is the same.
[0042] The nozzle and the fixed bracket 16 are perpendicular to each other.
[0043] Fan 9 is installed in fan section 4.
[0044] The electrical control box 8 is equipped with a PLC control system, which is part of the existing equipment.
[0045] The ash-receiving funnel is connected and fixed to the inner wall of the box. It can be fixed by welding, bolts, or other methods.
[0046] An air outlet 7 is installed on the bottom section box door of the fan section 4.
[0047] Fan 9 is a high-pressure fan.
[0048] Four air inlets are preferably provided.
[0049] The plate filter element 10 is a flat square frame filter element; the filter element is type H3.
[0050] The opening and closing end of the box body and the box door is connected by a latch 13. The bottom of the box body is equipped with casters.
[0051] The PLC control system is connected to the backflushing mechanism 12 and the fan 9 respectively. There is no restriction on the specific model, as long as it can realize its working function.
[0052] In actual operation, four air inlets 5 are set up to simultaneously handle the fume and dust from four welding robots. The welding robot arms are connected and fixed to the hose connectors at the air inlets 5 via hoses. The high negative pressure fan 9 draws in the fume and dust generated during welding. First, the air passes through the spark baffle, where metal particles and sparks are separated by collision, preventing them from entering the dust collector and burning the filter elements. Then, the fume and dusty air enters the filter chamber (several plate filter elements 10) of the purification section 1, passes through the plate filter elements 10, and the clean air enters the back-blowing chamber where the back-blowing component B6 is located from the middle of the plate filter elements 10, and is then discharged by the high-pressure fan 9 through the air outlet 7.
[0053] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A high negative pressure dust collector specifically for welding robots, characterized in that, The enclosure includes a top section, a purification section (1), a dust removal section (2), and a fan section (4) arranged sequentially from top to bottom. These sections are located in three separate areas. The top section and fan section (4) are located in the upper and lower sections, respectively. The purification section (1) and dust removal section (2) are located in the middle section and within the same area. The top section contains an electrical control box (8) and a back-flushing assembly A (3) of a back-flushing mechanism (12). The back-flushing assembly B (6) of the back-flushing mechanism (12) is located in the middle section and behind the purification section (1). The back-flushing assembly A (3) is located within the back-flushing assembly B (6). Above, and backflush assembly A (3) is connected to backflush assembly B (6). A partition is set between the top section and the purification section (1). The dust removal section (2) is set below the purification section (1). The bottom of backflush assembly B (6) is connected to the fan section (4). Backflush assembly B (6) is not connected to the dust removal section (2). Several plate filter elements (10) are set in the purification section (1). Several plate filter elements (10) are set at equal intervals. Box doors are set in the middle section and the bottom section of the fan section (4). An air inlet (5) is set on the box door of the middle section. A hose connector is set on the air inlet (5). A spark baffle is set between the air inlet (5) and the plate filter element (10).
2. The high negative pressure dust collector for welding robots as described in claim 1, characterized in that, The dust removal section (2) includes a dust collection funnel and a dust collection drawer (11). The dust collection funnel is located below the purification section (1), and the dust collection drawer (11) is located below the dust collection funnel. The dust collection drawer (11) is located on the partition between the dust removal section (2) and the fan section (4). The dust collection funnel is connected and fixed to the inner wall of the box.
3. The high negative pressure dust collector for welding robots as described in claim 1, characterized in that, The backflush mechanism (12) includes backflush component A (3) and backflush component B (6). Backflush component A (3) includes a backflush housing (14). The backflush housing (14) is connected to the compressed air inlet pipe. Several air pipes are set inside the backflush housing (14) corresponding to the nozzle. Each air pipe is connected to the compressed air inlet pipe, and a solenoid valve (15) is set on each air pipe to adjust the opening and closing of the air pipe.
4. The high negative pressure dust collector for welding robots as described in claim 1, characterized in that, The backflush assembly B (6) includes several nozzles, each nozzle has a fixed bracket (16) at the bottom, the bottom of the nozzle is connected to the housing through the fixed bracket (16) and bolts, and each nozzle has several nozzles (17) facing the inner wall of the housing.
5. The high negative pressure dust collector for welding robots as described in claim 1, characterized in that, A fan (9) is installed in the fan section (4).
6. The high negative pressure dust collector for welding robots as described in claim 1, characterized in that, The plate filter element (10) is a flat square frame filter element.
7. A high negative pressure dust collector for welding robots as described in claim 1, characterized in that, An air outlet (7) is provided on the bottom section box door of the fan section (4).
8. A high negative pressure dust collector for welding robots as described in claim 1, characterized in that, Four air inlets (5) are provided.
9. A high negative pressure dust collector for welding robots as described in claim 1, characterized in that, The opening and closing end of the box body and the box door is connected by a buckle (13).
10. A high negative pressure dust collector for welding robots as described in claim 1, characterized in that, The bottom of the box is equipped with casters.