Rotary wing type air filtering device for powder spraying room

Abstract

The utility model relates to an air filtering device, in particular to a rotating wing type air filtering device for a powder spraying room, which comprises a dust collecting box, an air cylinder is fixedly arranged in the dust collecting box, and a rotating wing mechanism is arranged at the bottom of the air cylinder. And the rotating wing mechanism comprises a middle pipe, the middle pipe is located at the bottom of the air cylinder, the middle pipe is also located in the dust collecting box, and the middle pipe rotates in the dust collecting box and is used for shaking off the collected dust. The bottom of an output shaft of the air cylinder is fixedly connected with an upper plate, and the bottom of the upper plate is fixedly connected with a lower plate. The inner wall of the lower plate is fixedly connected with a sleeve, and the bottom of the upper plate is fixedly connected with a piston rod. According to the utility model, an electromagnetic valve of the execution part is replaced by a mechanical execution air cylinder, or the execution parts such as a hydraulic cylinder can be adopted, the outward high-pressure airflow is generated in the filter cartridge through mechanical execution, and meanwhile, the filter cartridge can be driven to rotate, so that dust collected by the filter cartridge is shaken to fall off.

Description

Technical Field

[0001] The utility model relates to an air filtering device, in particular to a rotary wing air filtering device for a powder spraying room. Background Art

[0002] When spraying powder in a large cyclone powder exchange room, about 60% of the powder is directly applied to the workpiece surface, and the remaining 40% of the powder falls into the powder spraying room. This part of the fallen powder is called recycled powder. In the powder spraying production line, a large amount of recycled powder is generated.

[0003] These recycled powders need to be filtered after recycling and then processed. In the powder spraying room, a rotary wing air filter device is required to filter the collected dust.

[0004] The rotary wing air filtration devices encountered in the existing industry generally use pulse cleaning backflush rotary wings, also known as powder cleaning rotary wings, rotary dust cleaners, etc.

[0005] It is generally made of stainless steel tubes with precision processing. The working principle is: the solenoid valve instantly releases high-pressure gas, and the gas flows through the inside of the rotary wing to drive the cover to close. At this time, the filter cartridge is not in an offline working state. The gas is ejected through the air holes on both sides of the pipe. Due to its reaction force, the rotary wing drives the rotating wing to rotate and blow, and the inner side of the filter cartridge, that is, the opposite side of the dust, is fully blown. The pressure source with a certain flow rate instantly bursts onto the filter fiber surface of the filter cartridge, achieving the effect of shaking off dust and self-cleaning the filter cartridge;

[0006] However, the solenoid valve is controlled by connecting electronic components to a computer, and the solenoid valve is located inside a dust box for a long time. The collected dust can easily enter the interior of the solenoid valve, thereby interfering with the computer signal received by the electronic components, causing the solenoid valve to short-circuit and malfunction, resulting in inaccurate release of high-pressure gas. Therefore, the use of actuator solenoid valves has certain limitations. Utility Model Content

[0007] The purpose of the utility model is to provide a rotary wing air filter device for a powder spraying room to solve the problems raised in the above background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A rotary wing air filter device for a powder spraying room comprises a dust collecting box, a cylinder is fixedly arranged inside the dust collecting box, and a rotary wing mechanism is arranged at the bottom of the cylinder;

[0010] The rotating wing mechanism includes a middle pipe, which is located at the bottom of the cylinder and is also located inside the dust box. The middle pipe rotates inside the dust box to shake off the collected dust.

[0011] The rotary vane air filter device for a powder spraying room as described above: the bottom of the output shaft of the cylinder is fixedly connected to the upper plate, and the bottom of the upper plate is fixedly connected to the lower plate.

[0012] The rotary vane air filter device for a powder spraying room as described above: the inner wall of the lower plate is fixedly connected to a sleeve, and the bottom of the upper plate is fixedly connected to a piston rod.

[0013] The rotary wing air filter device for the powder spraying room as described above: the rotary wing mechanism also includes a ball, the inner wall of the sleeve is provided with a hemispherical groove, the upper surface of the middle tube is provided with a spiral groove, and the ball is located between the spiral groove and the hemispherical groove.

[0014] The rotary wing air filter device for a powder spraying room as described above: a connecting pipe is fixedly provided at the bottom of the middle tube, the interior of the middle tube is provided as a hollow cavity, the bottom of the piston rod penetrates into the interior of the middle tube, and the middle tube and the piston rod are slidably matched.

[0015] The rotary-wing air filter device for a powder spraying room as described above: the middle tube is connected to the connecting tube, side tubes are fixedly provided at both ends of the connecting tube, the interior of the side tube is configured as a hollow cavity, the side tubes are connected to the connecting tube, the side tubes are provided on both sides of the middle tube, the side tubes are fixedly connected to the middle tube, and the surface of the side tubes is sleeved with a filter cartridge.

[0016] The rotary vane air filter device for a powder spraying room as described above: end covers are fixedly provided at the upper and lower ends of the middle tube, the end covers are also fixedly connected to the upper and lower ends of the side tubes, and the connecting pipe is provided inside the end covers.

[0017] The rotary wing air filter device for a powder spraying room as described above: the shell of the side pipe is provided with air outlet holes, which are evenly distributed above and below the shell of the side pipe and are all opened on the side away from the middle pipe.

[0018] Compared with the prior art, the beneficial effect of the present invention is that the present invention replaces the solenoid valve of the actuator with a mechanically executed cylinder, and can also use hydraulic cylinders and other actuators. Through mechanical execution, an outward high-pressure airflow is generated inside the filter cartridge, and at the same time, the filter cartridge can be driven to rotate, thereby shaking the dust collected by the filter cartridge until it falls. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a rotary wing air filter device for a powder spraying room.

[0020] Figure 2 This is a schematic diagram of the internal structure of the dust collection box in the rotary wing air filter device used in the powder spraying room.

[0021] Figure 3 This is a schematic diagram of the structure of removing the filter cartridge in the rotary wing air filter device used in the powder spraying room.

[0022] Figure 4 This is a schematic diagram of the structure of the connecting pipe in the rotary vane air filter device used in the powder spraying room.

[0023] Figure 5 This is a schematic cross-sectional diagram of the structure of the sleeve, ball, middle tube and piston rod in the rotary vane air filter device for the powder spraying room.

[0024] In the figure: 1. Dust box; 2. Cylinder; 3. Upper plate; 4. Lower plate; 5. Filter cartridge; 6. Sleeve; 7. Ball; 8. Middle tube; 9. Piston rod; 10. Side tube; 1001. Air outlet; 11. Connecting tube; 12. End cover. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] See also Figure 1-Figure 5 As an embodiment of the present invention, the rotary wing air filter device for the powder spraying room includes a dust collecting box 1, a cylinder 2 is fixedly provided inside the dust collecting box 1, and a rotary wing mechanism is provided at the bottom of the cylinder 2;

[0027] The rotating wing mechanism includes a middle pipe 8, which is located at the bottom of the cylinder 2 and is also located inside the dust box 1. The middle pipe 8 rotates inside the dust box 1 to shake off the collected dust.

[0028] In this embodiment, when the turbid air inside the powder spraying room is recovered by a specific dust collection and recovery machine and transported to the inside of the dust box 1, the rotating wing mechanism inside the dust box 1 starts to operate, starting the cylinder 2, and the output shaft of the cylinder 2 will drive the middle tube 8 to run through the rotating wing mechanism at the bottom. The middle tube 8 will start to rotate inside the dust box 1, thereby shaking off the dust collected inside the dust box 1 until it falls to the ground.

[0029] As a further solution of the present invention, the bottom of the output shaft of the cylinder 2 is fixedly connected to an upper plate 3 , and the bottom of the upper plate 3 is fixedly connected to a lower plate 4 .

[0030] In this embodiment, the output shaft of the cylinder 2 drives the upper plate 3 , and the upper plate 3 drives the lower plate 4 .

[0031] As a further solution of the present invention, a sleeve 6 is fixedly connected to the inner wall of the lower plate 4 , and a piston rod 9 is fixedly connected to the bottom of the upper plate 3 .

[0032] In this embodiment, when the lower plate 4 moves downward, the sleeve 6 is also driven downward, and the upper plate 3 also drives the piston rod 9 downward.

[0033] As a further solution of the present invention, the rotating wing mechanism also includes a ball 7, the inner wall of the sleeve 6 is provided with a hemispherical groove, the upper surface of the middle tube 8 is provided with a spiral groove, and the ball 7 is located between the spiral groove and the hemispherical groove.

[0034] The bottom of the middle tube 8 is arranged inside the dust collecting box 1 .

[0035] In this embodiment, when the sleeve 6 is downward, the spiral groove of the middle tube 8 is squeezed by the ball 7. When the sleeve 6 is downward, the ball 7 also moves downward, so that the ball 7 drives the middle tube 8 to rotate. When the middle tube 8 rotates, the bottom of the middle tube 8 is close to the bottom inner wall of the dust box 1, and the middle tube 8 can only rotate and cannot rotate axially.

[0036] As a further solution of the present invention, a connecting tube 11 is fixedly provided at the bottom of the middle tube 8, the interior of the middle tube 8 is set as a hollow cavity, the bottom of the piston rod 9 penetrates into the interior of the middle tube 8, and the middle tube 8 and the piston rod 9 are slidably matched.

[0037] In this embodiment, when the piston rod 9 moves downward, it squeezes the air inside the middle tube 8 , thereby compressing the air inside the middle tube 8 , and causing the excess air to flow out through the connecting tube 11 .

[0038] As a further solution of the present invention, the middle tube 8 is connected to the connecting tube 11, and side tubes 10 are fixedly provided at both ends of the connecting tube 11. The interior of the side tube 10 is provided as a hollow cavity. The side tubes 10 are connected to the connecting tube 11, and the side tubes 10 are provided on both sides of the middle tube 8. The side tubes 10 are fixedly connected to the middle tube 8, and the surface of the side tube 10 is provided with a filter cartridge 5.

[0039] In this embodiment, the excess air flows through the connecting pipe 11 and enters the interior of the side pipe 10 , and the middle pipe 8 rotates while driving the side pipe 10 to rotate as well.

[0040] As a further solution of the present invention, end covers 12 are fixedly provided at the upper and lower ends of the middle tube 8 , and the end covers 12 are also fixedly connected to the upper and lower ends of the side tubes 10 , and the connecting tube 11 is provided inside the end covers 12 .

[0041] In this embodiment, combined with the previous embodiment, when the middle tube 8 drives the side tubes 10 to rotate, it is driven by the end covers 12.

[0042] As a further solution of the present invention, air outlet holes 1001 are opened on the shell of the side pipe 10. The air outlet holes 1001 are evenly distributed above and below the shell of the side pipe 10 and are all opened on the side away from the middle pipe 8.

[0043] In this embodiment, combined with the previous embodiment, when the excess air inside the middle tube 8 enters the inside of the side tube 10 through the connecting tube 11, the air inside the side tube 10 will blow the dust collected by the filter cartridge 5 mounted on the surface of the side tube 10 through the air outlet 1001, and the side tube 10 will also drive the filter cartridge 5 to rotate while rotating, so that the dust collected inside the filter cartridge 5 will fall during the rotation and be blown off by the high-pressure airflow, so that the filter cartridge 5 can filter the collected dust.

[0044] The above embodiments are exemplary rather than restrictive, so any technical solution of the present invention that can be implemented in other specific forms without departing from the spirit or basic features of the present invention is included in the present invention.

Claims

1. A rotary wing air filter device for a powder spraying room, characterized in that: The rotary wing air filter device for a powder spraying room comprises a dust collecting box (1), a cylinder (2) is fixedly arranged inside the dust collecting box (1), and a rotary wing mechanism is arranged at the bottom of the cylinder (2); The rotating wing mechanism comprises a middle tube (8), the middle tube (8) being located at the bottom of the cylinder (2) and also being located inside the dust collecting box (1), and the middle tube (8) rotating inside the dust collecting box (1) to shake off the collected dust.

2. A rotary vane air filter device for a powder spraying room according to claim 1, characterized in that: The bottom of the output shaft of the cylinder (2) is fixedly connected to an upper plate (3), and the bottom of the upper plate (3) is fixedly connected to a lower plate (4).

3. A rotary wing air filter device for a powder spraying room according to claim 2, characterized in that: A sleeve (6) is fixedly connected to the inner wall of the lower plate (4), and a piston rod (9) is fixedly connected to the bottom of the upper plate (3).

4. A rotary vane air filter device for a powder spraying room according to claim 3, characterized in that: The rotating wing mechanism further includes a ball (7), the inner wall of the sleeve (6) is provided with a hemispherical groove, the upper surface of the middle tube (8) is provided with a spiral groove, and the ball (7) is located between the spiral groove and the hemispherical groove.

5. The rotary vane air filter device for a powder spraying room according to claim 3, characterized in that: A connecting pipe (11) is fixedly provided at the bottom of the middle tube (8), the interior of the middle tube (8) is provided as a hollow cavity, the bottom of the piston rod (9) penetrates into the interior of the middle tube (8), and the middle tube (8) and the piston rod (9) are in sliding cooperation.

6. A rotary vane air filter device for a powder spraying room according to claim 5, characterized in that: The middle tube (8) is connected to the connecting tube (11), and side tubes (10) are fixedly provided at both ends of the connecting tube (11). The interior of the side tube (10) is configured as a hollow cavity. The side tubes (10) are connected to the connecting tube (11), and the side tubes (10) are provided on both sides of the middle tube (8). The side tubes (10) are fixedly connected to the middle tube (8), and a filter cartridge (5) is sleeved on the surface of the side tube (10).

7. A rotary vane air filter device for a powder spraying room according to claim 6, characterized in that: End covers (12) are fixedly provided at the upper and lower ends of the middle tube (8), and the end covers (12) are also fixedly connected to the upper and lower ends of the side tube (10), and the connecting tube (11) is provided inside the end covers (12).

8. The rotary vane air filter device for a powder spraying room according to claim 6, characterized in that: The shell of the side tube (10) is provided with air outlet holes (1001), and the air outlet holes (1001) are evenly distributed above and below the shell of the side tube (10), and are all provided on the side away from the middle tube (8).

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