Pickling passivation device for metal surface treatment

Abstract

The utility model provides a pickling passivation device for metal surface treatment, which relates to the technical field of metal treatment and comprises a base, a pickling tank is fixedly mounted on the upper surface of the base, a plurality of vertical frames are fixedly mounted on two sides of the upper surface of the base, and a top plate is jointly and fixedly mounted at the upper ends of the vertical frames. An air cylinder is fixedly installed in the middle of the upper surface of the top plate, and the output end of the air cylinder penetrates through the top plate and is fixedly provided with a support. A worker starts the motor to enable the output shaft of the motor to drive the worm to rotate, the rotating worm is matched with the worm gear, the worm gear drives the rotating rod and the connecting rod to rotate, the connecting rod drives the hook to rotate, and therefore a workpiece can rotate in the pickling tank with the connecting rod as the reference. The workpiece rotates to enable all parts of the surface to be alternately exposed in acid liquor, dead angles are avoided, and it is guaranteed that an oxide layer or rust is evenly removed.

Description

A metal surface treatment pickling and passivation device Technical Field

[0001] This utility model relates to the field of metal processing technology, and more specifically, to a metal surface treatment pickling and passivation device. Background Technology

[0002] A pickling and passivation device is an industrial equipment used for metal surface treatment. It improves the corrosion resistance and cleanliness of metals through chemical methods (pickling to remove oxides, passivation to form a protective film), and is widely used in the processing of materials such as stainless steel, carbon steel, and aluminum alloys. An existing publication (CN218596530U) describes a water body depth measuring device for hydraulic engineering, comprising a base frame. Electric push rods are fixedly mounted on both sides of the top surface of the base frame. The output ends of the electric push rods are fixedly connected to a lifting frame. A motor is fixedly mounted on the top surface of the lifting frame, and a rotating shaft is mounted on the output end of the motor. An pickling tank is fixedly mounted in the middle of the base frame, and a placement box is installed inside the pickling tank. A docking column is installed inside the placement box.

[0003] However, in the above structure, since the workpiece is in a static state after entering the pickling tank, the contact between the acid solution and the metal surface during static state depends solely on natural diffusion, which leads to a prolonged time for removing the oxide layer or rust. Summary of the Invention

[0004] The main purpose of this utility model is to provide a metal surface treatment pickling and passivation device, which can effectively solve the problem in the background art where the workpiece is in a static state after entering the pickling tank, and the contact between the acid solution and the metal surface during static state relies solely on natural diffusion, resulting in a prolonged time for removing the oxide layer or rust.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A metal surface treatment pickling and passivation device includes a base, an pickling tank fixedly installed on the upper surface of the base, several uprights fixedly installed on both sides of the upper surface of the base, a top plate fixedly installed on the upper end of each upright, a cylinder fixedly installed in the middle of the upper surface of the top plate, the output end of the cylinder passing through the top plate and fixedly installed with a bracket, a lifting plate fixedly installed on the lower surface of the bracket, several rotating rods rotatably installed on the lower surface of the lifting plate, a connecting rod provided at the lower end of each rotating rod, several hooks fixedly installed on the body of each connecting rod, and a worm gear sleeved on the upper end of each rotating rod passing through the lifting plate.

[0007] The upper surface of the lifting plate is provided with a drive assembly for driving the rotating rod to rotate.

[0008] Preferably, the drive assembly includes two upright plates, which are respectively fixedly installed on both sides of the upper surface of the lifting plate. A connecting shaft is rotatably installed on the opposite side of each of the two upright plates. A worm gear is fixedly installed on the opposite end of the two connecting shafts. A motor is fixedly installed on the side of one of the upright plates away from the worm gear. The connecting shaft near the motor passes through the corresponding upright plate and is fixedly connected to the output shaft end of the motor.

[0009] Preferably, each of the rotating rods has a mounting groove on its lower surface, a mounting block is fixedly installed in each mounting groove, a sliding groove is formed through the lower surface of each mounting block, a square shaft is slidably arranged in each sliding groove, a limit block is fixedly installed at the upper end of each square shaft, and the lower end of each square shaft is fixedly connected to the corresponding connecting rod.

[0010] Preferably, each of the mounting slots is provided with a spring.

[0011] Preferably, each of the square shafts is fitted with an annular plate, and two fixing brackets are fixedly installed on the upper surface of each annular plate, with a first semicircular block fixedly installed at one end of each fixing bracket;

[0012] Several round rods are fixedly installed on the lower surface of the lifting plate, and an installation ring is fixedly installed on the lower end of adjacent round rods. A second semi-circular block is fixedly installed on both sides of the upper surface of each installation ring.

[0013] Preferably, positioning rods are fixedly installed on both sides of the upper surface of the bracket, and the two positioning rods are respectively slidably disposed through the lower surface of the top plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The worker starts the motor, which drives the worm to rotate through its output shaft. The rotating worm, in cooperation with the worm wheel, drives the rotating rod and the connecting rod to rotate, which in turn drives the hook to rotate. This allows the workpiece to rotate inside the pickling tank with the connecting rod as the reference. The rotation of the workpiece causes different parts of the surface to be exposed to the acid solution alternately, avoiding dead corners and ensuring that the oxide layer or rust is removed evenly. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of a metal surface treatment pickling and passivation device according to this utility model;

[0017] Figure 2 is a front view schematic diagram of a metal surface treatment pickling and passivation device according to the present invention.

[0018] Figure 3 is a schematic cross-sectional view of section AA in Figure 2 of a metal surface treatment pickling and passivation device of this utility model.

[0019] Figure 4 is a schematic cross-sectional view of the pickling and passivation device for metal surface treatment according to the present invention at point BB in Figure 2.

[0020] Figure 5 is an enlarged schematic diagram of the structure at point A in Figure 3 of the metal surface treatment pickling and passivation device of this utility model;

[0021] Figure 6 is an enlarged schematic diagram of the structure at point B in Figure 3 of the metal surface treatment pickling and passivation device of this utility model;

[0022] Figure 7 is an enlarged schematic diagram of the structure at point C in Figure 4 of the metal surface treatment pickling and passivation device of this utility model.

[0023] In the diagram: 1. Base; 2. Pickling tank; 3. Stand; 4. Top plate; 5. Cylinder; 6. Bracket; 7. Lifting plate; 8. Rotating rod; 801. Connecting rod; 9. Hook; 10. Worm gear; 11. Drive assembly; 1101. Stand plate; 1102. Connecting shaft; 1103. Worm gear; 1104. Motor; 12. Mounting slot; 13. Mounting block; 14. Slide groove; 15. Positioning rod; 16. Square shaft; 17. Limiting block; 18. Spring; 19. Annular plate; 20. Fixing frame; 21. First semicircular block; 22. Connecting rod; 23. Mounting ring; 24. Second semicircular block. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] As shown in Figures 1-7, a metal surface treatment pickling and passivation device includes a base 1, an pickling tank 2 fixedly installed on the upper surface of the base 1, several uprights 3 fixedly installed on both sides of the upper surface of the base 1, a top plate 4 fixedly installed on the upper end of each upright 3, a cylinder 5 fixedly installed in the middle of the upper surface of the top plate 4, the output end of the cylinder 5 passes through the top plate 4 and is fixedly installed with a bracket 6, a lifting plate 7 fixedly installed on the lower surface of the bracket 6, several rotating rods 8 rotatably installed on the lower surface of the lifting plate 7, a connecting rod 801 is provided at the lower end of each rotating rod 8, several hooks 9 are fixedly installed on the body of each connecting rod 801, and a worm gear 10 is sleeved on the upper end of each rotating rod 8 passing through the lifting plate 7.

[0026] The upper surface of the lifting plate 7 is provided with a drive assembly 11 for driving the rotating rod 8 to rotate.

[0027] The drive assembly 11 includes two upright plates 1101, which are fixedly installed on both sides of the upper surface of the lifting plate 7. A connecting shaft 1102 is rotatably installed on the opposite side of each of the two upright plates 1101. A worm gear 1103 is fixedly installed on the opposite end of the two connecting shafts 1102. A motor 1104 is fixedly installed on the side of one of the upright plates 1101 away from the worm gear 1103. The connecting shaft 1102 near the motor 1104 passes through the corresponding upright plate 1101 and is fixedly connected to the output shaft end of the motor 1104.

[0028] The worker hangs the workpiece on the hook 9, then starts the cylinder 5, causing its output end to drive the lifting plate 7 to descend, allowing the metal part on the hook 9 to enter the pickling tank 2. The chemical solution in the pickling tank 2 then pickles the metal workpiece. The worker then starts the motor 1104, causing its output shaft to drive the worm gear 1103 to rotate. The rotating worm gear 1103, in conjunction with the worm wheel 10, drives the rotating rod 8 and the connecting rod 801 to rotate. This causes the connecting rod 801 to drive the hook 9 to rotate, allowing the workpiece to rotate inside the pickling tank 2 with the connecting rod 801 as a reference. The rotation of the workpiece causes different parts of its surface to be alternately exposed to the acid solution, avoiding dead corners and ensuring that the oxide layer or rust is removed evenly.

[0029] In another embodiment of this utility model, each rotating rod 8 has a mounting groove 12 on its lower end surface, a mounting block 13 is fixedly installed in each mounting groove 12, a sliding groove 14 is opened through the lower surface of each mounting block 13, a square shaft 16 is slidably arranged in each sliding groove 14, a limit block 17 is fixedly installed on the upper end of each square shaft 16, and the lower end of each square shaft 16 is fixedly connected to the corresponding connecting rod 801.

[0030] When the square shaft 16 moves along the direction of the slide groove 14.

[0031] In another embodiment of this utility model, a spring 18 is provided in each mounting slot 12.

[0032] When the workpiece rotates inside the pickling tank 2 with the connecting rod 801 as the reference, the operator controls the limit block 17 to move along the slide 14, so that the workpiece can move back and forth along the slide 14 while rotating, thereby exposing all parts of the workpiece to the acid solution and further avoiding dead corners. By setting the spring 18, the connecting rod 801 is prevented from moving along the slide 14 under the action of acid buoyancy.

[0033] In another embodiment of the present invention, each square shaft 16 is fitted with an annular plate 19, and two fixing brackets 20 are fixedly installed on the upper surface of each annular plate 19. A first semi-circular block 21 is fixedly installed at one end of each fixing bracket 20.

[0034] Several round rods 22 are fixedly installed on the lower surface of the lifting plate 7. The lower ends of adjacent round rods 22 are fixedly installed with mounting rings 23. A second semicircular block 24 is fixedly installed on both sides of the upper surface of each mounting ring 23.

[0035] When the first semicircular block 21 rotates with the annular plate 19 and moves to the position of the second semicircular block 24, the first semicircular block 21 drives the square shaft 16 to move along the slide groove 14 under the pushing action of the second semicircular block 24, thereby causing the hook 9 to move. This eliminates the need for workers to set up an additional power source to drive the hook 9 to move, thus improving the utilization rate of power.

[0036] In another embodiment of this utility model, positioning rods 15 are fixedly installed on both sides of the upper surface of the bracket 6, and the two positioning rods 15 are respectively slidably disposed on the lower surface of the top plate 4.

[0037] By setting the positioning rod 15, deviations in the movement direction of the bracket 6 and the lifting plate 7 are avoided.

[0038] The working principle of this metal surface treatment pickling and passivation device:

[0039] In use, the worker hangs the workpiece on the hook 9, then starts the cylinder 5, causing its output end to drive the lifting plate 7 to descend, allowing the metal part on the hook 9 to enter the pickling tank 2. The chemical solution in the pickling tank 2 then pickles the metal workpiece. The worker then starts the motor 1104, causing its output shaft to drive the worm gear 1103 to rotate. The rotating worm gear 1103, in conjunction with the worm wheel 10, drives the rotating rod 8 and the connecting rod 801 to rotate. This causes the connecting rod 801 to drive the hook 9 to rotate, allowing the workpiece to rotate inside the pickling tank 2 with the connecting rod 801 as a reference. The rotation of the workpiece causes different parts of its surface to be alternately exposed to the acid solution, avoiding dead corners and ensuring that the oxide layer or rust is removed evenly.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A metal surface treatment pickling and passivation apparatus, comprising a base (1), characterized in that: A pickling tank (2) is fixedly installed on the upper surface of the base (1). Several uprights (3) are fixedly installed on both sides of the upper surface of the base (1). A top plate (4) is fixedly installed on the upper end of each upright (3). A cylinder (5) is fixedly installed in the middle of the upper surface of the top plate (4). The output end of the cylinder (5) passes through the top plate (4) and is fixedly installed with a bracket (6). A lifting plate (7) is fixedly installed on the lower surface of the bracket (6). Several rotating rods (8) are rotatably installed on the lower surface of the lifting plate (7). A connecting rod (801) is provided at the lower end of each rotating rod (8). Several hooks (9) are fixedly installed on the body of each connecting rod (801). A worm gear (10) is sleeved on the upper end of each rotating rod (8) through the lifting plate (7). A drive assembly (11) for driving the rotating rods (8) to rotate is provided on the upper surface of the lifting plate (7).

2. The metal surface treatment pickling and passivation apparatus according to claim 1, characterized in that: The drive assembly (11) includes two upright plates (1101), which are respectively fixedly installed on both sides of the upper surface of the lifting plate (7). A connecting shaft (1102) is rotatably installed on the opposite side of each of the two upright plates (1101). A worm gear (1103) is fixedly installed on the opposite end of each of the two connecting shafts (1102). A motor (1104) is fixedly installed on the side of one of the upright plates (1101) away from the worm gear (1103). The connecting shaft (1102) close to the motor (1104) passes through the corresponding upright plate (1101) and is fixedly connected to the output shaft end of the motor (1104).

3. The metal surface treatment pickling and passivation apparatus according to claim 2, characterized in that: Each of the rotating rods (8) has a mounting groove (12) on its lower surface. Each mounting groove (12) has a mounting block (13) fixedly installed in it. Each mounting block (13) has a sliding groove (14) through its lower surface. Each sliding groove (14) has a square shaft (16) slidably installed in it. Each square shaft (16) has a limit block (17) fixedly installed at its upper end. Each square shaft (16) has its lower end fixedly connected to the corresponding connecting rod (801).

4. The metal surface treatment pickling and passivation apparatus according to claim 3, characterized in that: Each of the mounting slots (12) is provided with a spring (18).

5. The metal surface treatment pickling and passivation apparatus according to claim 4, characterized in that: Each of the square shafts (16) is fitted with an annular plate (19), and two fixing brackets (20) are fixedly installed on the upper surface of each annular plate (19). A first semicircular block (21) is fixedly installed at one end of each fixing bracket (20). Several round rods (22) are fixedly installed on the lower surface of the lifting plate (7). An installation ring (23) is fixedly installed at the lower end of adjacent round rods (22). A second semicircular block (24) is fixedly installed on both sides of the upper surface of each installation ring (23).

6. The metal surface treatment pickling and passivation apparatus according to claim 1, characterized in that: Positioning rods (15) are fixedly installed on both sides of the upper surface of the bracket (6), and the two positioning rods (15) are respectively slidably disposed on the lower surface of the top plate (4).

Images