Chromium-free passivation device for steel hot galvanizing

Abstract

The chromate-free passivation device comprises a hanging plate, three sets of through holes are formed in one end of the hanging plate at equal intervals, a first hanging rope can penetrate through the through holes, the length of the first hanging rope can be adjusted through an adjusting assembly, the first hanging rope is connected with a limiting piece to achieve accurate adjustment, and the other end of the hanging plate is connected with a first connecting base in a sliding mode. The first lifting rope and the second lifting rope are used for being connected with steel, when the steel enters a groove, the length of the second lifting rope is smaller than that of the first lifting rope, so that the steel enters the groove in an inclined mode, and when the steel completely enters the groove, the second lifting rope can penetrate through the lifting plate. The length of the first lifting rope is adjusted through the adjusting assembly to enable the length of the first lifting rope below the lifting plate to be smaller than the length of the second lifting rope below the lifting plate, and then the first lifting rope is discharged out of the tank, so that the end, entering the tank firstly, of the galvanized steel is discharged out of the tank firstly, the contact time of the two ends of the galvanized part and the chromate-free passivation solution is basically equal, and chromate-free passivation uniformity is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of chromium-free passivation devices, in particular to a chromium-free passivation device for hot-dip galvanized steel. Background Technique

[0002] A chromium-free passivation device for hot-dip galvanized steel is a device specifically designed for the surface treatment of hot-dip galvanized steel. Through specific processes and formulations, a dense oxide / hydroxide protective film is formed on the surface of the steel, thereby improving the corrosion resistance, wear resistance and aesthetics of the steel.

[0003] In the prior art, in order to quickly control water, the method of tilting the steel into the tank is generally selected. However, when the inclined galvanized steel enters the passivation tank for passivation, the lowest end of the inclined galvanized steel enters the passivation tank earliest and exits the passivation tank latest, so that the contact time between the two ends of the galvanized steel and the chromium-free passivation liquid is inconsistent, which easily affects the overall passivation effect. For this reason, we propose a chromium-free passivation device for hot-dip galvanized steel. Content of the Utility Model

[0004] The purpose of the utility model is to provide a chromium-free passivation device for hot-dip galvanized steel to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A chromium-free passivation device for hot-dip galvanized steel, including a hanging plate. Three through holes are equidistantly arranged at one end of the hanging plate. The through holes can be penetrated by a first hanging rope. The length of the first hanging rope can be adjusted through an adjusting component and is connected with a limiting component for precise adjustment. The other end of the hanging plate is slidably connected with a first connecting seat. A second hanging rope is installed at the bottom end of the first connecting seat corresponding to the first hanging rope, and the second hanging rope can penetrate the hanging plate.

[0006] Preferably, the adjusting component includes a first rope winding device and a second rope winding device. The first rope winding device is rotatably connected to the upper surface of one end of the hanging plate on one side of the through hole. The first hanging rope passes through the first rope winding device and is connected to the second rope winding device. The second rope winding device can be rotated through a driving component.

[0007] Preferably, the driving component includes a first belt pulley, a belt, a second belt pulley and a motor. One end of the shaft of the second rope winding device is connected to the first belt pulley. The first belt pulley is connected to the second belt pulley through the belt. The second belt pulley is connected to the output end of the motor.

[0008] Preferably, the limiting member includes a limiting seat and a limiting block. Two sets of limiting seats are correspondingly installed between the first rope winder and the second rope winder for each group of the first suspension ropes. The first suspension ropes penetrate through the two sets of limiting seats, and a limiting block is sleeved outside the first suspension ropes between the two sets of limiting seats for each group.

[0009] Preferably, the hanging plate is equidistantly provided with sliding grooves corresponding to the second suspension ropes. Two sliding rods are symmetrically installed on one side of the first connecting seat. The sliding rods are slidably connected with the sliding blocks installed at the top end of the hanging plate. One side of the first connecting seat facing the sliding rods is connected with the output end of the electric push rod.

[0010] Preferably, a second connecting seat is installed at one end of the hanging plate away from the first connecting seat.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The first suspension ropes and the second suspension ropes of the present utility model are used to connect steel materials. When entering the tank, the length of the second suspension ropes is shorter than that of the first suspension ropes, so that the steel materials enter the tank obliquely. As the steel materials are completely in the tank, the length of the first suspension ropes is adjusted by using the adjusting assembly, so that the length of the first suspension ropes below the hanging plate is shorter than that of the second suspension ropes below the hanging plate, and then they come out of the tank. Compared with the prior art, the end of the galvanized steel material that enters the tank first can come out of the tank first, so that the contact time between both ends of the galvanized part and the chromium-free passivation solution is basically equal, maintaining the uniformity of the overall chromium-free passivation, and the limiting member can be used to accurately adjust the length of the first suspension ropes.

[0013] 2. By starting the motor of the present utility model, the second belt pulley is driven to rotate. Through the transmission of the belt, the first belt pulley is driven to rotate, so that the second rope winder rotates and pulls the first suspension ropes to wind up, and thus the length can be adjusted. When the first suspension ropes move, the limiting blocks will be driven to move, and the limiting seats can be used to limit them, restricting the length adjustment of the first suspension ropes and preventing over-adjustment, and maintaining the accuracy of the length adjustment.

[0014] 3. By the contraction of the electric push rod of the present utility model, the first connecting seat can be pulled to move, adjusting the distance between it and the second connecting seat, which can be adapted to steel materials of different lengths. When the first connecting seat moves, the sliding rods will slide along the sliding blocks, improving the stability of its movement. At the same time, the opened sliding grooves will not affect the movement of the second suspension ropes. Description of the Drawings

[0015] Figure 1 It is a top view of the overall structure of the present utility model;

[0016] Figure 2 It is an enlarged view of part A of the structure of the present utility model;

[0017] Figure 3 This is the bottom view of the overall structure of the present utility model.

[0018] In the figure: 1, suspension plate; 2, through hole; 3, first suspension rope; 4, first connecting seat; 5, second suspension rope; 6, first rope winding device; 7, second rope winding device; 8, first pulley; 9, belt; 10, second pulley; 11, motor; 12, limit seat; 13, limit block; 14, sliding groove; 15, sliding rod; 16, slider; 17, electric push rod; 18, second connecting seat. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] Please refer to Figures 1-3 As shown, the present utility model provides a chromium-free passivation device for hot-dip galvanizing of steel, including a suspension plate 1. Three groups of through holes 2 are equidistantly arranged at one end of the suspension plate 1. The through holes 2 can be penetrated by the first suspension rope 3. The first suspension rope 3 can realize length adjustment through an adjustment component, and is connected with a limiting component to realize precise adjustment. The other end of the suspension plate 1 is slidably connected with a first connecting seat 4. A second suspension rope 5 is installed at the bottom end of the first connecting seat 4 corresponding to the first suspension rope 3, and the second suspension rope 5 can penetrate the suspension plate 1.

[0022] In this embodiment, the first suspension rope 3 and the second suspension rope 5 are used to connect the steel. When entering the tank, the length of the second suspension rope 5 is less than that of the first suspension rope 3, so that the steel enters the tank obliquely. As the steel completely enters the tank, the length of the first suspension rope 3 is adjusted by the adjustment component, so that the length of the first suspension rope 3 below the suspension plate 1 is less than the length of the second suspension rope 5 below the suspension plate 1, and then it exits the tank. Compared with the prior art, the end of the galvanized steel that enters the tank first can exit the tank first, so that the contact time between both ends of the galvanized part and the chromium-free passivation solution is basically equal, maintaining the uniformity of chromium-free passivation, and the precise adjustment of the length of the first suspension rope 3 can be realized by using the limiting component.

[0023] Please refer to Figures 1-3As shown in the figure, the adjusting component includes a first rope winder 6 and a second rope winder 7. The upper surface of one end of the hanging plate 1 is rotatably connected to the first rope winder 6 on one side of the through hole 2. The first lifting rope 3 passes through the first rope winder 6 and is connected to the second rope winder 7. The second rope winder 7 can be rotated by a driving component. The driving component includes a first pulley 8, a belt 9, a second pulley 10 and a motor 11. One end of the shaft rod of the second rope winder 7 is connected to the first pulley 8. The first pulley 8 is connected to the second pulley 10 through the belt 9. The second pulley 10 is connected to the output end of the motor 11. The limiting component includes a limiting seat 12 and a limiting block 13. Two groups of limiting seats 12 are installed corresponding to each group of the first lifting ropes 3 between the first rope winder 6 and the second rope winder 7. The first lifting rope 3 penetrates through the two groups of limiting seats 12, and a limiting block 13 is sleeved outside each group of the first lifting ropes 3 between the two groups of limiting seats 12.

[0024] In this embodiment, by starting the motor 11, the second pulley 10 is driven to rotate. Through the transmission of the belt 9, the first pulley 8 is driven to rotate, so that the second rope winder 7 rotates and pulls the first lifting rope 3 to wind, and thus the length thereof can be adjusted. When the first lifting rope 3 moves, the limiting block 13 will be driven to move. The limiting seat 12 can be used to limit it, restricting the length adjustment of the first lifting rope 3, and preventing over-adjustment, so as to maintain the accuracy of the length adjustment.

[0025] Please refer to Figures 1-3 As shown in the figure, the hanging plate 1 is provided with sliding grooves 14 at equal intervals corresponding to the second lifting ropes 5. Two groups of sliding rods 15 are symmetrically installed on one side of the first connecting seat 4. The sliding rods 15 are slidably connected to the sliders 16 installed at the top end of the hanging plate 1. One side of the first connecting seat 4 facing the sliding rods 15 is connected to the output end of the electric push rod 17. A second connecting seat 18 is installed at one end of the hanging plate 1 away from the first connecting seat 4.

[0026] In this embodiment, by the contraction of the electric push rod 17, the first connecting seat 4 can be pulled to move, adjusting the distance between it and the second connecting seat 18, which can be adapted to steel materials of different lengths. When the first connecting seat 4 moves, the sliding rods 15 will be driven to slide along the sliders 16, improving the stability of its movement. At the same time, the provided sliding grooves 14 will not affect the movement of the second lifting ropes 5. The first connecting seat 4 and the second connecting seat 18 are connected to the lifting device to complete the lifting of the steel material.

[0027] Working principle: First, start the motor 11 to drive the second pulley 10 to rotate. Through the transmission of the belt 9, drive the first pulley 8 to rotate, make the second rope winding device 7 rotate, and pull the first lifting rope 3 to wind up, so as to adjust its length. When the first lifting rope 3 moves, it will drive the limit block 13 to move, and the limit seat 12 can be used to limit it, restricting the length adjustment of the first lifting rope 3 and preventing over-adjustment, maintaining the accuracy of length adjustment. The first lifting rope 3 and the second lifting rope 5 are used to connect the steel. When entering the tank, the length of the second lifting rope 5 is less than that of the first lifting rope 3, making the steel tilt into the tank. As the steel completely enters the tank, use the adjustment component to adjust the length of the first lifting rope 3 so that its length below the hanging plate 1 is less than the length of the second lifting rope 5 below the hanging plate 1, and then exit the tank. Compared with the prior art, it can make the end of the galvanized steel that enters the tank first exit the tank first, so that the contact time of both ends of the galvanized part with the chromium-free passivation solution is basically equal, maintaining the uniformity of chromium-free passivation. By the contraction of the electric push rod 17, the first connecting seat 4 can be pulled to move, adjusting the distance between it and the second connecting seat 18, which can be adapted to steel of different lengths. When the first connecting seat 4 moves, it will drive the sliding rod 15 to slide along the slider 16, improving the stability of its movement. At the same time, the opened chute 14 will not affect the movement of the second lifting rope 5.

[0028] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chromium-free passivation device for hot-dip galvanizing of steel, comprising a hanging plate (1), characterized in that: One end of the hanging plate (1) is provided with three groups of through holes (2) at equal intervals, and the through holes (2) can allow a first hanging rope (3) to pass through. The length of the first hanging rope (3) can be adjusted by an adjustment component, and precise adjustment can be achieved by connecting a limiting member. The other end of the hanging plate (1) is slidably connected to a first connecting seat (4), and a second hanging rope (5) is installed at the bottom end of the first connecting seat (4) corresponding to the first hanging rope (3), and the second hanging rope (5) can penetrate the hanging plate (1).

2. The chromium-free passivation device for hot-dip galvanizing of steel according to claim 1, characterized in that: The adjustment component comprises a first rope winder (6) and a second rope winder (7); the upper surface of one end of the hanging plate (1) is located on one side of the through hole (2) and is rotatably connected to the first rope winder (6); the first hanging rope (3) passes through the first rope winder (6) and is connected to the second rope winder (7); and the second rope winder (7) can be rotated by a driving component.

3. The chromium-free passivation device for hot-dip galvanizing of steel according to claim 2, characterized in that: The driving assembly comprises a first pulley (8), a belt (9), a second pulley (10) and a motor (11); one end of the shaft of the second rope winder (7) is connected to the first pulley (8); the first pulley (8) is connected to the second pulley (10) via the belt (9); and the second pulley (10) is connected to the output end of the motor (11).

4. The chromium-free passivation device for hot-dip galvanizing of steel according to claim 2, characterized in that: The limiting component comprises a limiting seat (12) and a limiting block (13); two groups of the limiting seats (12) are installed between the first rope winder (6) and the second rope winder (7) corresponding to each group of the first suspension ropes (3); the first suspension ropes (3) penetrate the two groups of the limiting seats (12); and the limiting block (13) is sleeved on the outside of each group of the first suspension ropes (3) located between the two groups of the limiting seats (12).

5. The chromium-free passivation device for hot-dip galvanizing of steel according to claim 1, characterized in that: The hanging plate (1) is provided with sliding grooves (14) at equal intervals corresponding to the second hanging rope (5); two sets of sliding rods (15) are symmetrically installed on one side of the first connecting seat (4); the sliding rods (15) are slidably connected to the sliders (16) installed on the top of the hanging plate (1); and the first connecting seat (4) is connected to the output end of the electric push rod (17) on the side facing the sliding rods (15).

6. The chromium-free passivation device for hot-dip galvanizing of steel according to claim 1, characterized in that: A second connection seat (18) is mounted on one end of the hanging plate (1) away from the first connection seat (4).

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