Aluminum workpiece surface machining treatment device

Abstract

The invention relates to the field of aluminum profile production, and discloses an aluminum workpiece surface machining treatment device which comprises a machine body, a paint spraying frame arranged on the machine body in the horizontal direction and provided with openings in the two ends and a paint spraying mechanism arranged on the inner wall of the paint spraying frame. The paint spraying mechanism comprises four evenly-arranged first paint spraying pieces used for spraying paint on the inner cavity and a plurality of second paint spraying pieces used for spraying paint on the outer cavity, and the machine body is provided with a conveying mechanism used for conveying aluminum profiles in the horizontal direction to pass through the interior of the paint spraying frame. The device has the effect of improving the aluminum profile production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum workpiece production, and in particular to a surface processing device for an aluminum workpiece. Background Art

[0002] Aluminum profiles are aluminum materials with different cross-sectional shapes obtained by hot melting and extrusion of aluminum rods. When producing aluminum workpieces, the surface of the aluminum workpieces needs to be sprayed with paint.

[0003] When producing standard aluminum profiles such as 4040 and 3030, the structure of the aluminum profile (33) is shown in the attached Figure 5 , including an inner cavity (33a) and an outer cavity (33b). Since the shape of the inner cavity of the aluminum profile is irregular, when the aluminum profile is sprayed with paint, manual spraying is adopted, which leads to high labor intensity for workers and low production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an aluminum workpiece surface processing device, which has the effect of improving the production efficiency of aluminum profiles.

[0005] The above technical purpose of the present invention is achieved through the following technical scheme: it includes a machine body, a paint spraying frame with openings at both ends arranged on the machine body in a horizontal direction, and a paint spraying mechanism arranged on the inner wall of the paint spraying frame, the paint spraying mechanism includes four evenly arranged first paint spraying parts for spraying paint on the inner cavity and several second paint spraying parts for spraying paint on the outer cavity, and the machine body is provided with a conveying mechanism for conveying aluminum profiles through the interior of the paint spraying frame in a horizontal direction.

[0006] By adopting the above technical scheme, when it is necessary to spray the aluminum profile, the aluminum profile is first placed on the conveying mechanism, and the conveying mechanism conveys the aluminum profile forward through the paint spraying frame. In the process of the aluminum profile passing through the paint spraying frame, four first paint spraying parts respectively spray the inner cavity of the aluminum profile, and multiple second paint spraying parts respectively spray the outer cavity of the aluminum profile, and then the conveying mechanism conveys the aluminum profile away; therefore, by arranging the first paint spraying part, the second paint spraying part, etc., the inner cavity and outer cavity of the aluminum profile are respectively sprayed in the process of the conveying mechanism driving the aluminum profile through the paint spraying frame, thereby realizing the automatic spraying process of the aluminum profile, without the need for workers to spray manually, reducing the labor intensity of workers, and improving the production efficiency of aluminum profiles.

[0007] The present invention is further configured as follows: the conveying mechanism includes a plurality of conveying rollers rotatably arranged on the machine body along the horizontal direction, a first conveyor belt and a second conveyor belt arranged between the plurality of conveying rollers, a driving motor for driving the conveying rollers to rotate is arranged on the machine body, the first conveyor belt and the second conveyor belt are symmetrically arranged on both sides of the machine body, a plurality of first conveying rods are evenly arranged on the first conveyor belt along the vertical direction, a first L-shaped conveying block is arranged on the top of the first conveying rod, a plurality of second conveying rods corresponding to the first conveying rods are evenly arranged on the second conveyor belt along the vertical direction, a second L-shaped conveying block is arranged on the top of the second conveying rod, and a first elongated conveying hole matching the first conveying rod and a second elongated conveying hole matching the second conveying rod are vertically opened at the bottom of the paint spraying frame.

[0008] By adopting the above technical solution, a first conveying block and a second conveying block are set, and the aluminum profile is placed between the first conveying block and the second conveying block. Then, the first conveying belt and the second conveying belt drive the first conveying rod, the second conveying rod and the aluminum profile through the paint spraying frame, and the first conveying rod and the second conveying rod pass through the paint spraying frame along the first conveying hole and the second conveying hole respectively; therefore, by setting the first conveying block and the second conveying block, the conveying of the aluminum profile is realized, and the structure is simple and convenient. At the same time, the first conveying block and the second conveying block are set to be L-shaped, which can be limited at both sides of the aluminum profile respectively, thereby improving the stability of the aluminum profile during the conveying process.

[0009] The present invention is further configured as follows: the first paint spray part includes a first paint spray tube and a paint spray block connected to the end of the first paint spray tube and cooperating with the inner cavity, and the paint spray block is connected to be provided with a first nozzle, a second nozzle, a third nozzle, a fourth nozzle, a fifth nozzle, a sixth nozzle and a seventh nozzle for spraying paint on the inner cavity.

[0010] By adopting the above technical solution, a paint spray block is provided to match the inner cavity of the aluminum profile, and a first nozzle, a second nozzle, a third nozzle, a fourth nozzle, a fifth nozzle, a sixth nozzle and a seventh nozzle are provided to spray the seven surfaces of the inner cavity respectively, thereby ensuring that the inner cavity can be sprayed evenly, thereby ensuring the quality of the aluminum profile spraying while automatically spraying.

[0011] The present invention is further configured as follows: the second paint spray part includes a second paint spray tube and a third paint spray tube, the end of the second paint spray tube is connected to an eighth nozzle for spraying paint on the side wall of the outer cavity, and the end of the third paint spray tube is connected to a ninth nozzle for spraying paint on the bending part of the outer cavity.

[0012] By adopting the above technical solution, the eighth and ninth nozzles are set to spray the side walls and bends of the outer cavity of the aluminum profile respectively, ensuring that the outer cavity can be sprayed evenly, further ensuring the quality of the aluminum profile spraying.

[0013] The present invention is further configured as follows: the paint spraying frame includes a first paint spraying portion and a second paint spraying portion located above the first paint spraying portion, and the first conveying hole and the second conveying hole are provided between the first paint spraying portion and the second paint spraying portion.

[0014] The present invention is further configured as follows: the interiors of the first paint spraying section and the second paint spraying section are both cavity-shaped, the first paint spraying tube, the second paint spraying tube and the third paint spraying tube are all connected to the paint spraying frame, a liquid storage tank is provided on the machine body, a first liquid infusion tube is provided between the first paint spraying section and the liquid storage tank, and a second liquid infusion tube is provided between the second paint spraying section and the liquid storage tank.

[0015] By adopting the above technical solution, a hollow first paint spraying section and a second paint spraying section are set. When the first paint spraying section and the second paint spraying section are spraying the aluminum profile, the paint directly enters the first paint spraying section and the second paint spraying section from the liquid storage tank through the first infusion pipe and the second infusion pipe, and then enters the first paint spraying pipe, the second paint spraying pipe and the third paint spraying pipe, and sprays each surface of the aluminum profile through each nozzle, thereby achieving the purpose of simplifying the paint delivery line and making the device more compact and convenient.

[0016] The present invention is further configured as follows: a first cylinder is vertically arranged on the machine body, a first pushing block is upwardly arranged at the output end of the first cylinder, a second cylinder is vertically arranged on the machine body, a second pushing block is upwardly arranged at the output end of the second cylinder, the top end of the first pushing block and the top end of the second pushing block are in the same horizontal plane, the first pushing block and the second pushing block are respectively located on both sides of the paint spray frame, and the first pushing block and the second pushing block can push the aluminum profile upward.

[0017] By adopting the above technical solution, a first push block and a second push block are set, and after one end of the aluminum profile passes through the spray frame, the first cylinder and the second cylinder are opened to drive the first push block and the second push block to move upward until the first push block and the second push block push the aluminum profile upward for a short distance, and then the cylinder is driven to drive the first push block and the second push block to descend, and the aluminum profile returns to the first conveyor block and the second conveyor block. In this process, the first conveyor block and the second conveyor block still move forward with the first conveyor belt and the second conveyor belt. Therefore, at this time, the position where the aluminum profile contacts the first conveyor block and the second conveyor block has changed, and the second painting part can spray the position where the first conveyor block and the second conveyor block previously contacted the aluminum profile, thereby avoiding the phenomenon that some places on the aluminum profile are not sprayed; therefore, by setting the first push block and the second push block, the frequency of the first cylinder and the second cylinder driving the first push block and the second push block to push the aluminum profile upward is controlled, so that the aluminum profile and the first conveyor block and the second conveyor block intermittently move relative to each other, so that the positions where the first conveyor block and the second conveyor block contact the aluminum profile can be sprayed in sequence, thereby ensuring the quality of the aluminum profile spraying.

[0018] The present invention is further configured as follows: a first limit block and a second limit block are provided on the machine body, the first pushing block moves through the first limit block, and the second pushing block moves through the second limit block.

[0019] By adopting the above technical solution, a first limiting block and a second limiting block are provided to limit the first pushing block and the second pushing block respectively, so that the movement process of the aluminum profile pushed by the first pushing block and the second pushing block is more stable.

[0020] The present invention is further configured such that the longitudinal sections of the first pushing block and the second pushing block are both rectangular.

[0021] By adopting the above technical solution, the first pushing block and the second pushing block are set to be rectangular, the contact area between the first pushing block and the second pushing block and the aluminum profile is increased, and the movement process of the first pushing block and the second pushing block pushing the aluminum profile is further stabilized.

[0022] The present invention is further configured as follows: a first limit plate and a second limit plate are horizontally arranged on both sides of the top of the paint spray frame, the first pushing block can push the aluminum profile to contact the first limit plate, and the second pushing block can push the aluminum profile to contact the second limit plate.

[0023] By adopting the above technical solution, a first limiting plate and a second limiting plate are provided to limit the movable height of the aluminum profile, thereby preventing the aluminum profile from colliding with each nozzle during its rising process, thereby preventing the normal use of the nozzle from being affected.

[0024] The beneficial effects of the present invention are:

[0025] 1. By setting the first spray paint part, the second spray paint part, etc., when the aluminum profile needs to be sprayed, the aluminum profile is first placed on the conveying mechanism, and the conveying mechanism conveys the aluminum profile forward through the paint spraying frame. In the process of the aluminum profile passing through the paint spraying frame, the four first spray paint parts spray the inner cavity of the aluminum profile respectively, and the multiple second spray paint parts spray the outer cavity of the aluminum profile respectively, and then the conveying mechanism conveys the aluminum profile away; therefore, by setting the first spray paint part, the second spray paint part, etc., in the process of the conveying mechanism driving the aluminum profile through the paint spraying frame, the inner cavity and the outer cavity of the aluminum profile are sprayed respectively, thereby realizing the automatic spraying process of the aluminum profile, without the need for workers to spray manually, reducing the labor intensity of workers, and improving the production efficiency of aluminum profiles.

[0026] 2. By adopting the above technical solution, a hollow first paint spraying part and a second paint spraying part are set. When the first paint spraying part and the second paint spraying part are spraying the aluminum profile, the paint directly enters the first paint spraying part and the second paint spraying part from the liquid storage tank through the first infusion pipe and the second infusion pipe, and then enters the first paint spraying pipe, the second paint spraying pipe and the third paint spraying pipe, and sprays each surface of the aluminum profile through each nozzle, thereby achieving the purpose of simplifying the paint delivery line and making the device more compact and convenient.

[0027] 3. By setting the first pushing block and the second pushing block, the frequency of the first cylinder and the second cylinder driving the first pushing block and the second pushing block to push the aluminum profile upward is controlled, so that the aluminum profile and the first conveying block and the second conveying block intermittently move relative to each other, so that the positions where the first conveying block and the second conveying block contact the aluminum profile can be sprayed in turn, thereby ensuring the quality of the aluminum profile spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of an embodiment of an aluminum workpiece surface processing device of the present invention;

[0030] Figure 2 yes Figure 1 A is an enlarged schematic diagram;

[0031] Figure 3 It is a structural schematic diagram of an embodiment of an aluminum workpiece surface processing device of the present invention;

[0032] Figure 4 It is a structural schematic diagram of an embodiment of an aluminum workpiece surface processing device of the present invention;

[0033] Figure 5 The present invention is a schematic structural diagram of an aluminum workpiece surface processing device - an aluminum profile.

[0034] In the figure, 1, machine body; 2, paint spraying frame; 2a, first paint spraying part; 2b, second paint spraying part; 3, first paint spraying part; 3a, first paint spraying pipe; 3b, paint spraying block; 4, second paint spraying part; 4a, second paint spraying pipe; 4b, third paint spraying pipe; 5, conveying mechanism; 5a, conveying roller; 5b, first conveying belt; 5c, second conveying belt; 6, driving motor; 7, first conveying rod; 8, first conveying block; 9, second conveying rod; 10, second conveying block; 11, first conveying hole; 12, second conveying hole; 13, first nozzle; 1 4. Second nozzle; 15. Third nozzle; 16. Fourth nozzle; 17. Fifth nozzle; 18. Sixth nozzle; 19. Seventh nozzle; 20. Eighth nozzle; 21. Ninth nozzle; 22. Liquid storage tank; 23. First infusion pipe; 24. Second infusion pipe; 25. First cylinder; 26. First push block; 27. Second cylinder; 28. Second push block; 29. ​​First limit block; 30. Second limit block; 31. First limit plate; 32. Second limit plate; 33. Aluminum profile; 33a. Inner cavity; 33b. Outer cavity. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention provides a device for processing the surface of an aluminum workpiece, such as Figures 1 to 5 As shown, it includes a body 1, a paint spray frame 2 with openings at both ends arranged on the body 1 in a horizontal direction, and a paint spray mechanism arranged on the inner wall of the paint spray frame 2, the paint spray mechanism includes four evenly arranged first paint spray parts 3 for spraying paint on the inner cavity 33a and a plurality of second paint spray parts 4 for spraying paint on the outer cavity 33b, and a conveying mechanism 5 for conveying the aluminum profile 33 through the interior of the paint spray frame 2 in a horizontal direction is arranged on the body 1.

[0037] Further, the conveying mechanism 5 includes a plurality of conveying rollers 5a rotatably arranged on the body 1 in the horizontal direction, a first conveying belt 5b and a second conveying belt 5c arranged between the plurality of conveying rollers 5a, a driving motor 6 for driving the conveying rollers 5a to rotate is arranged on the body 1, the first conveying belt 5b and the second conveying belt 5c are symmetrically arranged on both sides of the body 1, a plurality of first conveying rods 7 are evenly arranged on the first conveying belt 5b in the vertical direction, an L-shaped first conveying block 8 is arranged at the top of the first conveying rod 7, a plurality of second conveying rods 9 corresponding to the first conveying rod 7 are evenly arranged on the second conveying belt 5c in the vertical direction, an L-shaped second conveying block 10 is arranged at the top of the second conveying rod 9, and a first elongated conveying hole 11 cooperating with the first conveying rod 7 and a second elongated conveying hole 12 cooperating with the second conveying rod 9 are vertically opened at the bottom of the paint spraying frame 2.

[0038] Furthermore, the first paint spraying part 3 includes a first paint spraying tube 3a and a paint spraying block 3b which is connected to the end of the first paint spraying tube 3a and cooperates with the inner cavity 33a, and the paint spraying block 3b is connected to the first nozzle 13, the second nozzle 14, the third nozzle 15, the fourth nozzle 16, the fifth nozzle 17, the sixth nozzle 18 and the seventh nozzle 19 for spraying paint on the inner cavity 33a.

[0039] Furthermore, the second paint spray part 4 includes a second paint spray tube 4a and a third paint spray tube 4b, the end of the second paint spray tube 4a is connected to an eighth nozzle 20 for spraying paint on the side wall of the outer cavity 33b, and the end of the third paint spray tube 4b is connected to a ninth nozzle 21 for spraying paint on the bending part of the outer cavity 33b.

[0040] Furthermore, the paint spraying frame 2 includes a first paint spraying portion 2a and a second paint spraying portion 2b located above the first paint spraying portion 2a, and the first conveying hole 11 and the second conveying hole 12 are provided between the first paint spraying portion 2a and the second paint spraying portion 2b.

[0041] Furthermore, the interiors of the first paint spraying part 2a and the second paint spraying part 2b are both cavity-shaped, the first paint spraying tube 3a, the second paint spraying tube 4a and the third paint spraying tube 4b are all connected to the paint spraying frame 2, a liquid storage tank 22 is provided on the body 1, a first liquid infusion tube 23 is provided between the first paint spraying part 2a and the liquid storage tank 22, and a second liquid infusion tube 24 is provided between the second paint spraying part 2b and the liquid storage tank 22.

[0042] Furthermore, a first cylinder 25 is vertically arranged on the machine body 1, and a first pushing block 26 is upwardly arranged at the output end of the first cylinder 25. A second cylinder 27 is vertically arranged on the machine body 1, and a second pushing block 28 is upwardly arranged at the output end of the second cylinder 27. The top of the first pushing block 26 and the top of the second pushing block 28 are in the same horizontal plane, and the first pushing block 26 and the second pushing block 28 are respectively located on both sides of the paint spray frame 2, and the first pushing block 26 and the second pushing block 28 can push the aluminum profile 33 upward.

[0043] Furthermore, a first limiting block 29 and a second limiting block 30 are provided on the machine body 1 , the first pushing block 26 moves through the first limiting block 29 , and the second pushing block 28 moves through the second limiting block 30 .

[0044] Furthermore, the longitudinal sections of the first pushing block 26 and the second pushing block 28 are both rectangular.

[0045] Furthermore, a first limiting plate 31 and a second limiting plate 32 are horizontally arranged on both sides of the top of the paint spray frame 2, and the first pushing block 26 can push the aluminum profile 33 to contact the first limiting plate 31, and the second pushing block 28 can push the aluminum profile 33 to contact the second limiting plate 32.

[0046] When it is necessary to spray the aluminum profile 33, the aluminum profile 33 is first placed on multiple first conveying blocks 8 and second conveying blocks 10, and the rotating first conveyor belt 5b and second conveyor belt 5c convey the aluminum profile 33 forward to pass through the first spray painting section 2a and second spray painting section 2b. In the process of the aluminum profile 33 passing through the spray painting frame 2, the seven nozzles on the four spray painting blocks 3b spray each surface of the inner cavity 33a of the aluminum profile 33 respectively, and multiple eighth nozzles 20 and the first nozzles spray the side walls and bending parts of the outer cavity 33b respectively. Then, after the end of the aluminum profile 33 extends out of the spray painting section, the first cylinder 25 and the second cylinder 27 are opened to drive the first push block 26 and the second push block 28 to move upward until the first push block 26 and the second push block 28 push the aluminum profile 33 upward for a short distance, and then the driving cylinder drives the first push block 26 and the second push block 28 to descend, and the aluminum profile 33 returns to the first conveying block 8 and the second conveying block 10 In this process, the first conveying block 8 and the second conveying block 10 still move forward with the first conveyor belt 5b and the second conveyor belt 5c, so the position where the aluminum profile 33 contacts the first conveying block 8 and the second conveying block 10 has changed, and the second paint spraying part 4 can spray the position where the first conveying block 8 and the second conveying block 10 previously contacted the aluminum profile 33, and then the first cylinder 25 and the second cylinder 27 push the aluminum profile 33 to rise and fall at a certain frequency, so as to spray the positions where the first conveying block 8 and the second conveying block 10 contact the aluminum profile 33 in turn; therefore, by setting the first paint spraying part 3, the second paint spraying part 4, etc., the inner cavity 33a and the outer cavity 33b of the aluminum profile 33 are sprayed respectively in the process that the conveying mechanism 5 drives the aluminum profile 33 through the paint spraying frame 2, thereby realizing the automatic spraying process of the aluminum profile 33, without the need for workers to spray manually, reducing the labor intensity of workers, and improving the production efficiency of the aluminum profile 33.

[0047] By setting the first conveying block 8 and the second conveying block 10, the aluminum profile 33 is placed between the first conveying block 8 and the second conveying block 10, and then the first conveying belt 5b and the second conveying belt 5c drive the first conveying rod 7, the second conveying rod 9 and the aluminum profile 33 to pass through the paint spraying frame 2, and the first conveying rod 7 and the second conveying rod 9 pass through the paint spraying frame 2 along the first conveying hole 11 and the second conveying hole 12 respectively; therefore, by setting the first conveying block 8 and the second conveying block 10, the conveying of the aluminum profile 33 is realized, and the structure is simple and convenient. At the same time, the first conveying block 8 and the second conveying block 10 are set to be L-shaped, which can be respectively limited with the two sides of the aluminum profile 33, thereby improving the stability of the aluminum profile 33 during the conveying process.

[0048] By setting a paint spray block 3b that matches the inner cavity 33a of the aluminum profile 33, and setting a first nozzle 13, a second nozzle 14, a third nozzle 15, a fourth nozzle 16, a fifth nozzle 17, a sixth nozzle 18 and a seventh nozzle 19 to spray the seven surfaces of the inner cavity 33a respectively, it is ensured that the inner cavity 33a can be sprayed evenly, thereby ensuring the quality of the spraying of the aluminum profile 33 while automatically spraying.

[0049] By setting the eighth nozzle 20 and the ninth nozzle 21 , the side wall and the bending part of the outer cavity 33 b of the aluminum profile 33 are sprayed respectively, so as to ensure that the outer cavity 33 b can be sprayed evenly, and further ensure the quality of the spraying of the aluminum profile 33.

[0050] By setting up a hollow first paint spraying section 2a and a second paint spraying section 2b, when the first paint spraying part 3 and the second paint spraying part 4 are spraying the aluminum profile 33, the paint directly enters the first paint spraying section 2a and the second paint spraying section 2b from the liquid storage tank 22 through the first infusion pipe 23 and the second infusion pipe 24, and then enters the first paint spraying pipe 3a, the second paint spraying pipe 4a and the third paint spraying pipe 4b, and each surface of the aluminum profile 33 is sprayed through each nozzle, thereby achieving the purpose of simplifying the paint delivery line and making the device more compact and convenient.

[0051] By setting the first pushing block 26 and the second pushing block 28, and controlling the frequency of the first cylinder 25 and the second cylinder 27 driving the first pushing block 26 and the second pushing block 28 to push the aluminum profile 33 upward, the aluminum profile 33 and the first conveying block 8 and the second conveying block 10 are intermittently moved relative to each other, so that the positions where the first conveying block 8 and the second conveying block 10 contact the aluminum profile 33 can be sprayed in turn, thereby ensuring the quality of the spraying of the aluminum profile 33.

[0052] By providing the first limiting block 29 and the second limiting block 30 , the first pushing block 26 and the second pushing block 28 are limited respectively, so that the movement process of the first pushing block 26 and the second pushing block 28 pushing the aluminum profile 33 is more stable.

[0053] By setting the first push block 26 and the second push block 28 to be rectangular, the contact area between the first push block 26 and the second push block 28 and the aluminum profile 33 is increased, and the movement process of the first push block 26 and the second push block 28 pushing the aluminum profile 33 is further stabilized.

[0054] The movable height of the aluminum profile 33 is limited by providing the first limiting plate 31 and the second limiting plate 32 to prevent the aluminum profile 33 from colliding with each nozzle during its ascent, thereby preventing the normal use of the nozzle from being affected.

[0055] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0056] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A surface processing device for an aluminum workpiece, characterized in that: The invention comprises a machine body (1), a paint spraying frame (2) with openings at both ends arranged on the machine body (1) in a horizontal direction, and a paint spraying mechanism arranged on the inner wall of the paint spraying frame (2), wherein the paint spraying mechanism comprises four evenly arranged first paint spraying parts (3) for spraying paint on an inner cavity (33a) and a plurality of second paint spraying parts (4) for spraying paint on an outer cavity (33b), and the machine body (1) is provided with a conveying mechanism (5) for conveying an aluminum profile (33) in a horizontal direction through the interior of the paint spraying frame (2).

2. The surface processing device for an aluminum workpiece according to claim 1 is characterized in that: The conveying mechanism (5) comprises a plurality of conveying rollers (5a) rotatably arranged on the machine body (1) in a horizontal direction, a first conveying belt (5b) and a second conveying belt (5c) arranged between the plurality of conveying rollers (5a), the machine body (1) is provided with a driving motor (6) for driving the conveying rollers (5a) to rotate, the first conveying belt (5b) and the second conveying belt (5c) are symmetrically arranged on both sides of the machine body (1), and a plurality of first conveying rods (7) are evenly arranged on the first conveying belt (5b) in a vertical direction. ), the top of the first conveying rod (7) is provided with an L-shaped first conveying block (8), a plurality of second conveying rods (9) corresponding to the first conveying rod (7) are evenly arranged on the second conveying belt (5c) in the vertical direction, the top of the second conveying rod (9) is provided with an L-shaped second conveying block (10), and the bottom of the paint spraying frame (2) is vertically provided with a first elongated conveying hole (11) matching with the first conveying rod (7) and a second elongated conveying hole (12) matching with the second conveying rod (9).

3. The device for surface processing of aluminum workpiece according to claim 1, characterized in that: The first paint spraying member (3) comprises a first paint spraying tube (3a) and a paint spraying block (3b) connected to the end of the first paint spraying tube (3a) and matched with the inner cavity (33a); the paint spraying block (3b) is connected to a first spray head (13), a second spray head (14), a third spray head (15), a fourth spray head (16), a fifth spray head (17), a sixth spray head (18) and a seventh spray head (19) for spraying paint on the inner cavity (33a).

4. The device for processing the surface of an aluminum workpiece according to claim 3, characterized in that: The second paint spraying member (4) comprises a second paint spraying tube (4a) and a third paint spraying tube (4b), wherein the end of the second paint spraying tube (4a) is connected to an eighth spray head (20) for spraying paint on the side wall of the outer cavity (33b), and the end of the third paint spraying tube (4b) is connected to a ninth spray head (21) for spraying paint on the bending part of the outer cavity (33b).

5. The device for processing the surface of an aluminum workpiece according to claim 4, characterized in that: The paint spraying frame (2) comprises a first paint spraying section (2a) and a second paint spraying section (2b) located above the first paint spraying section (2a), and the first conveying hole (11) and the second conveying hole (12) are provided between the first paint spraying section (2a) and the second paint spraying section (2b).

6. The device for processing the surface of an aluminum workpiece according to claim 5, characterized in that: The interiors of the first paint spraying section (2a) and the second paint spraying section (2b) are both hollow; the first paint spraying tube (3a), the second paint spraying tube (4a) and the third paint spraying tube (4b) are all connected to the paint spraying frame (2); a liquid storage tank (22) is provided on the machine body (1); a first liquid infusion tube (23) is provided between the first paint spraying section (2a) and the liquid storage tank (22); and a second liquid infusion tube (24) is provided between the second paint spraying section (2b) and the liquid storage tank (22).

7. The device for processing the surface of an aluminum workpiece according to claim 2, characterized in that: A first cylinder (25) is vertically arranged on the machine body (1), and a first pushing block (26) is upwardly arranged at the output end of the first cylinder (25). A second cylinder (27) is vertically arranged on the machine body (1), and a second pushing block (28) is upwardly arranged at the output end of the second cylinder (27). The top end of the first pushing block (26) and the top end of the second pushing block (28) are located in the same horizontal plane. The first pushing block (26) and the second pushing block (28) are respectively located on two sides of the paint spraying frame (2), and the first pushing block (26) and the second pushing block (28) can push the aluminum profile (33) upward.

8. The device for processing the surface of an aluminum workpiece according to claim 7, characterized in that: The machine body (1) is provided with a first limit block (29) and a second limit block (30); the first push block (26) moves through the first limit block (29); and the second push block (28) moves through the second limit block (30).

9. The device for processing the surface of an aluminum workpiece according to claim 8, characterized in that: The longitudinal sections of the first pushing block (26) and the second pushing block (28) are both rectangular.

10. The device for processing the surface of an aluminum workpiece according to claim 7, characterized in that: A first limiting plate (31) and a second limiting plate (32) are horizontally arranged on both sides of the top of the paint spraying frame (2), respectively; the first pushing block (26) can push the aluminum profile (33) to contact the first limiting plate (31), and the second pushing block (28) can push the aluminum profile (33) to contact the second limiting plate (32).

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