A kind of air inlet filter device for aluminum profile curing furnace

Abstract

The utility model belongs to the technical field of aluminum profile processing, and specifically is an air inlet filter device for an aluminum profile curing furnace, comprising an air inlet duct; a filter screen is fixedly connected to the interior of the air inlet duct; a fixed groove is opened in the interior of the air inlet duct; a collection drawer is slidably matched inside the fixed groove; the collection drawer is arranged at the position corresponding to the filter screen; the filter screen is arranged inside the air inlet duct to filter the powder flocs inside the air, and the driving blades are driven by the air, so that the rotating sleeve drives the second fixed block and the scraper rod to rotate, and the powder flocs adhered to the surface of the filter screen are scraped off by the structural design, so that the function of making the air entering the interior of the curing furnace cleaner is realized, and the problem that when the air is mixed with powder flocs and enters the interior of the curing furnace together with the air, it is easy to pollute the surface of the aluminum profile and affect the curing processing of the aluminum profile is caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum profile processing, in particular to an air inlet filtering device for an aluminum profile curing furnace. Background Art

[0002] Aluminum profile curing furnace is a high-temperature curing equipment specially used for aluminum profile surface treatment. Its main function is to thermally cure the surface coating of aluminum profile at high temperature, making the coating harder and more beautiful, and improving the corrosion resistance and wear resistance of aluminum profile. The heating principle of aluminum profile curing furnace is to transfer heat to aluminum profile by means of thermal radiation and thermal convection, so as to increase its surface temperature and realize curing. In this process, air needs to be injected into the furnace to keep the temperature in the furnace stable and evenly distributed. At the same time, the oxygen in the air can also react with the oxide film on the surface of aluminum profile, promote the melting of the surface layer and the wetting of the coating, which is beneficial to the adhesion of the coating and the surface quality of the aluminum profile.

[0003] When injecting air into the aluminum profile curing furnace, if powder flocs are mixed in the air and enter the interior of the curing furnace along with the air, it is easy to pollute the surface of the aluminum profile and affect the curing process of the aluminum profile. At the same time, if too much powder flocs enter the interior of the curing furnace, it is easy to leave a safety hazard of fire inside the curing furnace.

[0004] To this end, the utility model provides an air inlet filtering device for an aluminum profile curing furnace. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is: an air inlet filter device for an aluminum profile curing furnace described in the utility model comprises an air inlet duct; a filter screen is fixedly connected to the inside of the air inlet duct; a fixed groove is opened inside the air inlet duct; a collection drawer is slidably matched inside the fixed groove; the collection drawer is arranged at the position corresponding to the filter screen; a rotating sleeve is provided inside the air inlet duct; a plurality of support rods are fixedly connected between the side wall of the rotating sleeve and the inner side wall of the air inlet duct; a rotating shaft is rotatably connected inside the rotating sleeve; a first fixed block is fixedly connected to the end of the rotating shaft, and a second fixed block is fixedly connected to the other end of the first fixed block; the second fixed block is rotatably connected to the internal position of the filter screen; a plurality of driving blades are fixedly connected to the side wall of the first fixed block, and the driving blades are regularly arranged in a circular array on the side wall of the first fixed block; a plurality of scraping rods are fixedly connected to the side wall of the second fixed block; the surface of the filter screen can be made cleaner.

[0007] Preferably, the inside of the air inlet duct is rotatably connected to a baffle plate via a torsion spring; the baffle plate is arranged inside the air inlet duct at a position between the corresponding filter screen and the curing furnace; it can effectively avoid heat exchange between the outside air and the air inside the curing furnace, which may easily affect the curing process inside the curing furnace.

[0008] Preferably, a vacuum chamber is provided inside the blocking plate; a plurality of supporting keels are fixedly connected inside the vacuum chamber; and the heat inside the curing furnace can be effectively prevented from being exchanged with the heat outside.

[0009] Preferably, the scraper rod is arranged in an arc shape, and the convex surface of the scraper rod faces the direction of rotation of the scraper rod; the powder fluff can be better pushed into the inside of the collection drawer, making the cleaning of the powder fluff more convenient.

[0010] Preferably, a positioning block is fixed inside the rotating shaft; the positioning block is rotatably connected to an internal position of the rotating sleeve, so that the rotation of the rotating shaft is more stable.

[0011] Preferably, a plurality of balls are provided between the rotating sleeve and the positioning block; the side walls of the balls are in contact with the side walls of the rotating sleeve and the positioning block; thus, the wear between the rotating sleeve and the positioning block can be reduced.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses an air inlet filter device for an aluminum profile curing furnace, which filters powder in the air by arranging a filter inside the air inlet duct, and at the same time, drives the blades through the air, so that the rotating sleeve drives the second fixed block and the scraper rod to rotate, and the powder adhering to the surface of the filter is scraped off by the structural design, so as to realize the function of making the air entering the curing furnace cleaner, and effectively solves the problem that when powder mixed in the air enters the interior of the curing furnace together with the air, it is easy to pollute the surface of the aluminum profile and affect the curing process of the aluminum profile.

[0014] 2. The utility model describes an air inlet filter device for an aluminum profile curing furnace, which achieves the function of effectively preventing air from flowing back by arranging a blocking plate inside the air inlet duct and adopts a structural design to block the air inlet duct. At the same time, it can effectively prevent heat exchange between the outside air and the air inside the curing furnace, which may easily affect the curing process inside the curing furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the air inlet duct in the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of the rotating shaft in the utility model;

[0019] Figure 4 It is a cross-sectional view of the air inlet duct in the utility model;

[0020] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0021] In the figure: 1. air inlet duct; 2. filter screen; 3. fixing groove; 4. collecting drawer; 5. rotating sleeve; 6. support rod; 7. rotating shaft; 8. first fixed block; 9. driving blade; 10. second fixed block; 11. scraper rod; 12. blocking plate; 13. vacuum chamber; 14. supporting keel; 15. positioning block; 16. ball bearing. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] like Figure 1 to Figure 2As shown, an air inlet filter device for an aluminum profile curing furnace described in an embodiment of the utility model comprises an air inlet duct 1; a filter screen 2 is fixedly connected to the interior of the air inlet duct 1; a fixing groove 3 is opened inside the air inlet duct 1; a collection drawer 4 is slidably matched inside the fixing groove 3; the collection drawer 4 is arranged at a position corresponding to the filter screen 2; a rotating sleeve 5 is provided inside the air inlet duct 1; a plurality of support rods 6 are fixedly connected between the side wall of the rotating sleeve 5 and the inner side wall of the air inlet duct 1; a rotating shaft 7 is rotatably connected inside the rotating sleeve 5; a first fixed block 8 is fixedly connected to the end of the rotating shaft 7, and a second fixed block 10 is fixedly connected to the other end of the first fixed block 8; the second fixed block 10 is rotatably connected to the internal position of the filter screen 2; a plurality of driving blades 9 are fixedly connected to the side wall of the first fixed block 8, and the driving blades 9 are They are regularly arranged in a circular array; a plurality of scraper rods 11 are fixedly connected to the side wall of the second fixed block 10; during operation, when it is necessary to supply air to the curing furnace, by arranging a filter 2 inside the air inlet duct 1, the powder flocs in the air entering the air inlet duct 1 can be filtered, so that the air entering the air inlet duct 1 is cleaner, and at the same time, when the air enters the curing furnace through the air inlet duct 1, the air will push the driving blade 9, so that the driving blade 9 drives the first fixed block 8 and the rotating sleeve 5 to rotate, and then the rotating sleeve 5 can drive the second fixed block 10 and the scraper rod 11 to rotate, and the powder flocs adhered to the surface of the filter 2 are scraped off, so that the surface of the filter 2 can be made cleaner, and the situation that the powder flocs easily cause blockage of the filter 2 can be effectively avoided. At the same time, the scraped powder flocs will be collected by falling into the inside of the collection drawer 4, so that the cleaning of the powder flocs is more convenient.

[0025] The interior of the air inlet duct 1 is rotatably connected with a blocking plate 12 through a torsion spring; the blocking plate 12 is arranged inside the air inlet duct 1 at a position between the corresponding filter screen 2 and the curing furnace; during operation, when the air enters the interior of the curing furnace through the air inlet duct 1, by arranging the blocking plate 12 inside the air inlet duct 1, it is possible to effectively avoid the backflow of air, and at the same time, it is possible to effectively avoid the heat exchange between the outside air and the air inside the curing furnace, which is likely to affect the curing process inside the curing furnace.

[0026] A vacuum chamber 13 is provided inside the blocking plate 12; a plurality of supporting keels 14 are fixedly connected inside the vacuum chamber 13; during operation, by providing the vacuum chamber 13 inside the blocking plate 12, the weight of the blocking plate 12 can be made lighter, thereby making it more convenient for air to push the blocking plate 12. At the same time, by providing the vacuum chamber 13 inside the blocking plate 12, the heat inside the curing furnace can be effectively prevented from being exchanged with the heat outside.

[0027] The scraper rod 11 is arranged in an arc shape, and the arc-shaped convex surface of the scraper rod 11 faces the direction of rotation of the scraper rod 11; when working, when the powder flocs on the surface of the filter screen 2 are scraped off by the scraper rod 11, the scraper rod 11 is arranged in an arc shape, so that the powder flocs can be better pushed into the inside of the collection drawer 4, making the cleaning of the powder flocs more convenient.

[0028] A positioning block 15 is fixedly connected to the interior of the rotating shaft 7; the positioning block 15 is rotatably connected to the internal position of the rotating sleeve 5; during operation, when the rotating shaft 7 rotates inside the air inlet duct 1, by arranging the positioning block 15 on the surface of the rotating shaft 7 and limiting the rotation of the positioning block 15 by the rotating sleeve 5, the rotating shaft 7 is less likely to tilt during rotation, and the rotation of the rotating shaft 7 is more stable.

[0029] A plurality of balls 16 are arranged between the rotating sleeve 5 and the positioning block 15; the side walls of the balls 16 are in contact with the side walls of the rotating sleeve 5 and the positioning block 15; during operation, when the positioning block 15 rotates inside the rotating sleeve 5, by arranging the balls 16 between the rotating sleeve 5 and the positioning block 15, the sliding friction between the rotating sleeve 5 and the positioning block 15 can be converted into rolling friction, so that the friction force between the rotating sleeve 5 and the positioning block 15 is smaller, thereby reducing the wear between the rotating sleeve 5 and the positioning block 15.

[0030] During operation, when it is necessary to supply air to the curing furnace, by arranging a filter 2 inside the air inlet duct 1, the powder flocs in the air entering the air inlet duct 1 can be filtered, so that the air entering the air inlet duct 1 is cleaner. At the same time, when the air enters the curing furnace through the air inlet duct 1, the air will push the driving blade 9, so that the driving blade 9 drives the first fixed block 8 and the rotating sleeve 5 to rotate, and then the rotating sleeve 5 can drive the second fixed block 10 and the scraper rod 11 to rotate, and the powder flocs adhered to the surface of the filter 2 are scraped off, so that the surface of the filter 2 can be cleaner, and the situation that the powder flocs easily cause blockage to the filter 2 can be effectively avoided. At the same time, the scraped powder flocs will be collected by falling into the inside of the collection drawer 4, making the cleaning of the powder flocs more convenient.

[0031] When the air enters the interior of the curing furnace through the air inlet duct 1, a blocking plate 12 is provided inside the air inlet duct 1 to effectively prevent air backflow and effectively prevent heat exchange between the outside air and the air inside the curing furnace, which may easily affect the curing process inside the curing furnace.

[0032] By opening a vacuum chamber 13 inside the blocking plate 12, the weight of the blocking plate 12 can be made lighter, so that it is more convenient for air to push the blocking plate 12. At the same time, by opening a vacuum chamber 13 inside the blocking plate 12, the heat inside the curing furnace can be effectively prevented from being exchanged with the heat outside.

[0033] When the powder flocs on the surface of the filter screen 2 are scraped off by the scraper rod 11, the scraper rod 11 is arranged in an arc shape, so that the powder flocs can be better pushed into the inside of the collection drawer 4, making it more convenient to clean the powder flocs.

[0034] When the rotating shaft 7 rotates inside the air inlet duct 1, by setting a positioning block 15 on the surface of the rotating shaft 7 and limiting the rotation of the positioning block 15 by rotating the sleeve 5, the rotating shaft 7 can be less likely to tilt during rotation, making the rotation of the rotating shaft 7 more stable.

[0035] When the positioning block 15 rotates inside the rotating sleeve 5, by arranging the balls 16 between the rotating sleeve 5 and the positioning block 15, the sliding friction between the rotating sleeve 5 and the positioning block 15 can be changed into rolling friction, so that the friction force between the rotating sleeve 5 and the positioning block 15 is smaller, thereby reducing the wear between the rotating sleeve 5 and the positioning block 15.

[0036] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An air inlet filter device for an aluminum profile curing furnace, characterized in that: The invention comprises an air inlet duct (1); a filter screen (2) is fixedly connected to the inside of the air inlet duct (1); a fixing groove (3) is provided inside the air inlet duct (1); a collecting drawer (4) is slidably matched inside the fixing groove (3); the collecting drawer (4) is arranged at a position corresponding to the filter screen (2); a rotating sleeve (5) is provided inside the air inlet duct (1); a plurality of supporting rods (6) are fixedly connected between the side wall of the rotating sleeve (5) and the inner side wall of the air inlet duct (1); the inside of the rotating sleeve (5) A rotating shaft (7) is rotatably connected; a first fixed block (8) is fixedly connected to the end of the rotating shaft (7), and a second fixed block (10) is fixedly connected to the other end of the first fixed block (8); the second fixed block (10) is rotatably connected to an inner position of the filter screen (2); a plurality of driving blades (9) are fixedly connected to the side wall of the first fixed block (8), and the driving blades (9) are regularly arranged in a circular array on the side wall of the first fixed block (8); and a plurality of scraper rods (11) are fixedly connected to the side wall of the second fixed block (10).

2. The air inlet filter device for an aluminum profile curing furnace according to claim 1, characterized in that: The interior of the air inlet duct (1) is rotatably connected to a blocking plate (12) via a torsion spring; the blocking plate (12) is arranged inside the air inlet duct (1) at a position between the corresponding filter screen (2) and the curing furnace.

3. The air inlet filter device for an aluminum profile curing furnace according to claim 2, characterized in that: A vacuum chamber (13) is provided inside the blocking plate (12); a plurality of supporting keels (14) are fixedly connected inside the vacuum chamber (13).

4. The air inlet filter device for an aluminum profile curing furnace according to claim 3, characterized in that: The scraper rod (11) is arranged in an arc shape, and the arc-shaped convex surface of the scraper rod (11) faces the rotation direction of the scraper rod (11).

5. The air inlet filter device for an aluminum profile curing furnace according to claim 4, characterized in that: A positioning block (15) is fixedly connected inside the rotating shaft (7); the positioning block (15) is rotatably connected to an internal position of the rotating sleeve (5).

6. The air inlet filter device for an aluminum profile curing furnace according to claim 5, characterized in that: A plurality of balls (16) are arranged between the rotating sleeve (5) and the positioning block (15); the side walls of the balls (16) are in contact with the side walls of the rotating sleeve (5) and the positioning block (15).

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