Angle steel hot-dip galvanizing system and method

Abstract

The present invention discloses a hot-dip galvanizing system for angle steel, including a feeding turning mechanism, which feeds at least one angle steel with its opening facing downward, and after turning, the angle steel has its opening facing the side; a transfer mechanism, which transfers the angle steel with its opening facing the side to a galvanizing mechanism, or transfers it out of the galvanizing mechanism; a galvanizing mechanism, which is arranged in a galvanizing pool, and keeps the angle steel in a state of opening facing the side for galvanizing; a discharging turning mechanism, which includes a discharging conveying mechanism, which discharges at least one angle steel with its opening facing the side, and after turning, the angle steel enters the discharging conveying mechanism with its opening facing downward. The present invention also discloses a hot-dip galvanizing method for angle steel. The angle steel of the present invention is in different states in different processes, which ensures a good galvanizing effect and avoids the accumulation of zinc liquid at the corners to cause uneven coating. In the discharging conveying mechanism, the angle steel has its opening facing downward, which is convenient for conveying and plating; the layout is reasonable, and the transfer mechanism moves in the width direction of the galvanizing pool, and occupies a small space.

Description

Technical Field

[0001] The invention belongs to the technical field of hot-dip galvanizing, and in particular relates to a system and method for hot-dip galvanizing angle steel. Background Art

[0002] Chinese patent CN 104711501B discloses "CNC threading and hanging device and threading and hanging process for galvanizing angle steel", which sets up multiple angle steels in a grate for galvanizing, and the lengths of the angle steels in the grate are the same. However, for a tower, there are various angle steels of different lengths, the longest of which is more than 10 meters and the shortest is about 3 meters. Therefore, it is impossible to use the grate to thread and hang all the angle steels required for a tower for galvanizing. There is no system on the market that can galvanize angle steels of different lengths and models after disassembling a finished product into multiple angle steels. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a system and method for hot-dip galvanizing of angle steel with reasonable layout, uniform coating and high processing efficiency.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a hot-dip galvanizing system for angle steel, comprising:

[0005] The feeding and flipping mechanism feeds at least one angle steel with its opening facing downward, and after flipping, the opening of the angle steel faces sideways;

[0006] A transfer mechanism, which transfers the angle steel with the opening facing the side to the galvanizing mechanism, or transfers it out of the galvanizing mechanism;

[0007] The galvanizing mechanism is arranged in the galvanizing tank, and keeps the angle steel with the opening facing the side for the galvanizing process;

[0008] The discharging and turning mechanism includes a discharging and conveying mechanism, which discharges at least one angle steel with its opening facing sideways, and after turning over, the angle steel enters the discharging and conveying mechanism with its opening facing downwards.

[0009] Furthermore, the feed turning mechanism and the discharge turning mechanism are arranged on two sides of the galvanizing pool relatively.

[0010] Furthermore, the feeding and flipping mechanism includes a feeding mechanism and a first flipping mechanism, the first flipping mechanism includes a first flipping axis and a first material rack, the first material rack is V-shaped, and can rotate with the first flipping axis to realize the flipping of the angle steel.

[0011] Furthermore, there are multiple first material racks, and the multiple first material racks are connected to the first flip shaft; or the multiple first material racks are respectively connected to the multiple first flip shafts, and the multiple first material racks are linked by connecting rods.

[0012] Furthermore, the transfer mechanism at least includes a hook for transferring the angle steel and a driving unit for driving the hook to move, and the hook includes an inclined bottom wall and two opposite vertical side walls.

[0013] Furthermore, the angle steel opens to the side, with its closed end abutting against one of the vertical side walls, and one side of its open end abutting against the connection between the other vertical side wall and the bottom wall; or, the outer side wall of the angle steel fits against the inclined bottom wall.

[0014] Furthermore, the galvanizing mechanism includes a frame, and a plurality of bracket bodies arranged at intervals on the frame, at least one V-shaped notch portion with an opening facing upward is formed on the bracket body, and the angle steel opening faces sideways and is clamped in the V-shaped notch portion.

[0015] Furthermore, the galvanizing mechanism also includes a vibration unit, which is used to drive the frame, the bracket body and the angle steel to perform vibration galvanizing.

[0016] Furthermore, the discharging turning mechanism also includes a second turning mechanism, and the discharging conveying mechanism includes a plurality of material rollers arranged at intervals along the length direction of the galvanizing pool, and the material rollers rotate around their own axes to convey angle steels with openings facing downwards.

[0017] Furthermore, at least one material roller is magnetic to absorb the angle steel.

[0018] Furthermore, it also includes a finished product sorting mechanism, which includes a first track, a second track and a third track in the X-axis, Y-axis and Z-axis directions respectively, and a material picking unit, which can be raised and lowered along the third track and has a material picking arm with adjustable spacing.

[0019] Furthermore, the end of the material taking arm is provided with a magnetic attraction structure, which has a fitting surface adapted to the angle steel.

[0020] Furthermore, the finished product distributing mechanism includes a plurality of distributing stations, which are arranged at intervals along the X-axis direction.

[0021] Furthermore, the subpackaging stations include at least one packaging station, and the material taking unit obtains angle steels of various models or lengths from the remaining subpackaging stations and performs overall packaging at the packaging station.

[0022] Furthermore, the feeding mechanism is provided with a plurality of angle steels of different lengths or different models, and the plurality of angle steels are disassembled from packages that can be spliced ​​into a complete finished product.

[0023] Furthermore, the galvanizing mechanism also includes a bracket body replacement unit, which includes a storage frame for placing various types of bracket bodies, and a moving device for transferring the bracket body, the bracket body has an outer clamping portion that can cooperate with the frame, and an inner clamping portion that can cooperate with the moving device; the frame is provided with multiple groups of positioning portions at intervals along the length direction, and each group of positioning portions includes at least two positioning portions.

[0024] Furthermore, a cooling trough and a passivation trough are arranged side by side downstream of the galvanizing pool, the discharging conveying mechanism extends to the side of the cooling trough, and a branch conveying mechanism is arranged on the side of the passivation trough.

[0025] Furthermore, it also includes a material transfer mechanism, which is provided with a plurality of magnetic ends for transferring the angle steel between the discharge conveying mechanism, the cooling trough, the passivation trough and the branch conveying mechanism.

[0026] Furthermore, it also includes a blowing and coating unit, which includes an upper blowing and coating part and a lower blowing and coating part, an upper vertical driving mechanism for driving the upper blowing and coating part to rise and fall, a lower vertical driving mechanism for driving the lower blowing and coating part to rise and fall, and a transverse driving mechanism for driving the upper driving mechanism and the lower driving mechanism to translate.

[0027] The invention also discloses a method for hot-dip galvanizing of angle steel, comprising the following steps:

[0028] S1, the feeding mechanism conveys the angle steel to the first turning mechanism, and the angle steel is in a state of opening downward;

[0029] S2, the first flipping mechanism flips the angle steel to a state where the opening faces the side;

[0030] S3, the transfer mechanism transfers the angle steel with the opening facing the side to the galvanizing mechanism in the galvanizing pool;

[0031] S4, the angle steel is galvanized with the opening facing the side;

[0032] S5, the transfer mechanism transfers the galvanized angle steel to the second turning mechanism;

[0033] S6. The second turning mechanism turns the angle steel to a state where the opening faces downward, and places it into the discharge conveying mechanism.

[0034] Further, the step S3 includes the following steps:

[0035] S31, the hook moves to below the horizontal height of the first flipping mechanism, and moves upward so that the angle steel is placed in the hook, while keeping the opening of the angle steel facing the side;

[0036] S32, the hook moves with the angle steel to leave the first flipping mechanism and then moves to the top of the galvanizing mechanism;

[0037] S33, the hook moves downward to place the angle steel on the bracket body of the galvanizing mechanism, while the angle steel opening is still kept facing the side, and the hook moves downward until the angle steel is separated from the hook, and then the hook moves to reset.

[0038] Furthermore, the following steps are included:

[0039] S7, the discharging conveying mechanism conveys the angle steel to the position corresponding to the cooling trough, and the material transfer mechanism transfers the angle steel to the cooling trough;

[0040] S8, the material transfer mechanism transfers the angle steel that has completed the cooling process to the passivation tank, and transfers it to the branch conveying mechanism after completing the passivation process;

[0041] S9, the branch conveying mechanism conveys the angle steel to the finished product dividing mechanism.

[0042] Furthermore, in step S9, a plurality of angle steels that can be assembled into a complete product are packaged together.

[0043] Furthermore, in the step S1, the package that can be assembled into a complete finished product can be disassembled to obtain a plurality of angle steels, and the feeding mechanism conveys the plurality of angle steels to the first turning mechanism.

[0044] The beneficial effects of the present invention are as follows: 1) the angle steel is in different states in different processes. During the process in which the hook transfers the angle steel to the galvanizing mechanism and the galvanizing process, the angle steel opening faces sideways, thereby ensuring a good galvanizing effect and avoiding the accumulation of zinc liquid at the corners leading to uneven coating. When the material is discharged from the conveying mechanism, the angle steel opening faces downward, which is not only convenient for transportation but also convenient for blow plating; 2) the layout of the feeding turning mechanism, the discharging turning mechanism and the galvanizing pool is reasonable, and the transfer mechanism moves in the width direction of the galvanizing pool without occupying too much space; 3) the structural design of the first turning mechanism is simple and reasonable. Through the cooperation of the first material rack and the first turning axis, the turning of the angle steel and the docking cooperation with the feeding mechanism and the transfer mechanism can be completed; 4) the hook structure of the transfer mechanism is simple, which can ensure that the angle steel opening faces sideways, and at the same time, it is small in size, and the space required for the activity when the angle steel is transferred is small, and the transfer is more flexible; 5) the frame and bracket body design of the galvanizing mechanism are not only convenient for installation, but also convenient for replacement of the bracket body. The galvanizing system can adapt to different types of angle steel products; 6) The material transfer mechanism can quickly and conveniently transfer angle steels, and can adapt to angle steels of different lengths and types; 7) The finished products such as iron towers are disassembled for galvanizing, and the finished products are packaged completely and independently again after galvanizing, which is suitable for work scenarios where individually packaged finished products need to be galvanized; 8) The finished product separation mechanism places angle steels of different lengths or types separately, which is convenient for the material collection unit to integrate and package after taking the materials; 9) The angle steels spliced ​​to form the iron tower are up to 12 meters long and 3 meters short. The system can adapt to galvanizing at different angles with high flexibility; 10) The design of the blowing unit can automatically complete the centering according to the size and type of the angle steel, making it more adaptable and having a good blowing effect, and can accurately control the thickness error of the hot-dip galvanized layer on the surface of the angle steel; 11) The angle steel enters the galvanizing pool in a horizontal manner and leaves the galvanizing pool in a horizontal manner, and the coating is more uniform at all locations along the length direction of the angle steel; 12) The time the angle steel spends in the galvanizing pool is highly controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the top view of the hot-dip galvanizing system of the present invention.

[0046] Figure 2 for Figure 1 A magnified view of the structure in Figure 2.

[0047] Figure 3 It is a schematic diagram of the three-dimensional structure of the hot-dip galvanizing system of the present invention.

[0048] Figure 4 It is a side view of the feeding turning mechanism of the present invention, and at this moment, the first turning mechanism faces the feeding mechanism.

[0049] Figure 5 It is a side view of the feeding turning mechanism of the present invention, at which the first turning mechanism is turned to the side with the angle steel opening facing the side.

[0050] Figure 6 It is a three-dimensional diagram of the first turning mechanism in the present invention.

[0051] Figure 7 It is a schematic diagram of the transfer mechanism in the present invention.

[0052] Figure 8 It is a schematic diagram of the coordination structure between the transfer mechanism and the first flipping mechanism in the present invention.

[0053] Fig. 9 It is a schematic diagram of the angle steel located in the transfer mechanism in the present invention.

[0054] Fig.10 It is a side view of the galvanizing mechanism in the present invention.

[0055] Fig.11 It is a three-dimensional diagram of the bracket body in the present invention.

[0056] Fig.12 Schematic diagram of the matching structure of the bracket body and the frame in the present invention Figure 1 .

[0057] Fig.13 Schematic diagram of the matching structure of the bracket body and the frame in the present invention Figure 2 .

[0058] Fig.14 Another schematic diagram of the matching structure of the bracket body and the frame in the present invention Figure 1 .

[0059] Fig.15 Another schematic diagram of the matching structure of the bracket body and the frame in the present invention Figure 2 .

[0060] Fig.16 It is a schematic diagram of the discharging conveying mechanism in the present invention.

[0061] Fig.17 It is a side view of the discharging conveying mechanism with the angle steel opening facing downward in the present invention.

[0062] Fig.18 It is a schematic diagram of the material transfer mechanism in the present invention.

[0063] Fig.19 It is another structural schematic diagram of the material moving mechanism in the present invention.

[0064] Fig. 20 It is a schematic diagram of the structure of the blowing unit in the present invention.

[0065] Fig.21 Another structural diagram of the blowing unit in the present invention is shown in FIG. Figure 1 .

[0066] Fig. 22Another structural diagram of the blowing unit in the present invention is shown in FIG. Figure 2 .

[0067] Fig.23 It is a schematic diagram of the matching structure of another structure of the blowing and plating unit in the present invention and the angle steel.

[0068] Fig.24 It is a structural schematic diagram of the finished product dispensing mechanism in the present invention. DETAILED DESCRIPTION

[0069] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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 should fall within the scope of protection of the present invention.

[0070] like Figure 1-Figure 3 As shown, a hot-dip galvanizing system for angle steel includes a feed turning mechanism 1, a transfer mechanism 3, a galvanizing mechanism 4, and a discharge turning mechanism 5. The cross section of the angle steel 2 is L-shaped, and has an opening 21. The galvanizing mechanism 4 is arranged in a galvanizing pool 41, and the feed turning mechanism 1 and the discharge turning mechanism 5 are arranged on both sides of the galvanizing pool 41. In other words, the feed turning mechanism 1 and the discharge turning mechanism 5 are arranged opposite to each other.

[0071] The feeding and turning mechanism 1 comprises a feeding mechanism 12 and a first turning mechanism 11. Figure 4-Figure 6 As shown, the first flipping mechanism 11 includes a first flipping shaft 111 and a first material rack 112. The first material rack 112 is V-shaped and can rotate with the first flipping shaft 111 to achieve the flipping of the angle steel 2. There are multiple first material racks 112, and multiple first material racks 112 are connected to the first flipping shaft 111, so that one first flipping shaft 111 can drive multiple first material racks 112 to flip synchronously. Of course, the structure of the first flipping mechanism 11 can also be that each first material rack 112 is separately connected to the first flipping shaft 111. In other words, the number of first material racks 112 and the first flipping shaft 111 is the same. At the same time, multiple first material racks 112 are linked by a connecting rod 113 to ensure that all first material racks 112 can flip synchronously.

[0072] The feeding mechanism 12 includes an inclined conveyor belt 121, which is used to feed the angle steel 2 with the opening 21 facing downward. Figure 4 As shown, the open end of the first material rack 112 faces the inclined conveyor belt 121, and the angle steel 2 on the conveyor belt 121 enters the first material rack 112 with the opening 21 facing downward. Figure 5As shown, after the first rack 112 receives the angle steel 2, the first flip shaft 111 drives the first rack 112 to rotate counterclockwise until the opening 21 of the angle steel 2 faces the side. In order to facilitate the positioning of the rotation angle, a limit section 114 can also be connected to the closed end of the first rack 112. Once the limit section 114 is rotated to abut against the horizontal plane where the first flip shaft 111 is installed, it means that the rotation has reached the end point.

[0073] like Figure 7-Figure 9 As shown, the transfer mechanism 3 at least includes a hook 31 for transferring the angle steel 2, and a driving unit 32 for driving the hook 31 to move. The movement here refers to the translation and lifting of the hook 31. Of course, it can also be the curved movement of the hook 31, but the final function realized is the movement of the driving unit 32 in the horizontal and vertical directions.

[0074] The hook member 31 includes an inclined bottom wall 311 and two opposite vertical side walls 312 . The two vertical side walls 312 are respectively connected to two ends of the bottom wall 311 . The two vertical side walls 312 may be parallel or non-parallel.

[0075] like Figure 8 As shown, the driving unit 32 drives the hook 31 to move below the horizontal height of the angle steel 2, which does not refer to the position directly below the first material rack 112. The specific movement trajectory is not limited. Then the hook 31 moves upward to move the angle steel 2 upward and away from the first material rack 112. At this time, the angle steel 2 keeps the opening 21 facing the side. Then, the driving unit 32 transfers the angle steel 2 to the galvanizing mechanism 4.

[0076] like Figure 10-13 As shown, the galvanizing mechanism 4 includes a frame 42, and a plurality of spaced apart bracket bodies 43 arranged on the frame 42. At least one V-shaped notch portion 431 with an opening facing upward is formed on the bracket body 43. When the galvanizing process is performed, the angle steel 2 is clamped in the V-shaped notch portion 431 with the opening facing the side.

[0077] Specifically, the upper part of the bracket body 43 is hung on the frame 42, and the lower part thereof is formed with three V-shaped notches 431 with openings facing upward, and the shape of the V-shaped notches 431 is adapted to the shape of the hook 31. The hook 31 brings the angle steel 2 into the galvanizing pool 41, and after the angle steel 2 is erected in the V-shaped notches 431, the hook 31 is transferred out of the galvanizing pool 41. The angle steel 2 is still kept in a state where the opening 21 faces the side for the galvanizing process.

[0078] The shape of the V-shaped notch 431 and the shape of the hook 31 are both adapted to the angle steel 2. When the angle steel 2 enters the hook 31 with the opening facing the side, the closed end of the angle steel 2 abuts against one of the vertical side walls of the hook 31, and one of the two ends of the opening 21 of the angle steel 2 abuts against the connection between the other vertical side wall and the inclined bottom wall 311, and the other end abuts against the vertical side wall. In other words, the closed end of the angle steel 2 abuts against the connection between the vertical side wall and the inclined bottom wall 311, and at this time, one of the outer side walls of the angle steel 2 fits against the inclined bottom wall 311.

[0079] In order to improve the galvanizing effect, the galvanizing mechanism 4 further includes a vibration unit, which is used to drive the frame 42, the bracket body 43 and the angle steel 2 to vibrate and galvanize.

[0080] In order to adapt to hot-dip galvanizing of angle steels of different types, the galvanizing mechanism 4 further includes a bracket body replacement unit 44, such as Figure 2 As shown, the bracket body replacement unit 44 includes a storage frame 441 for placing various types of bracket bodies 43, and a moving device 442 for transferring the bracket body 43. The bracket body 43 has an outer clamping portion 432 that can cooperate with the frame 42, and an inner clamping portion 433 that can cooperate with the moving device 442.

[0081] The bottom limit of the bracket body 43 is placed in the storage frame 441, and the outer clamping portion 432 and the inner clamping portion 433 of the bracket body 43 are arranged on the top of the bracket body 43. In this embodiment, the inner clamping portion 433 is a clamping groove structure, and the outer clamping portion 432 is a convex block structure. Fig.11 Both ends of the moving device 442 form protrusions 443 that can extend into the inner clamping portion 433 , and the upper surface of the protrusions 443 also has a groove that matches the width of the inner clamping portion 433 , thereby preventing the bracket body 43 from shifting on the moving device 442 .

[0082] like Fig.13 As shown, the frame 42 is provided with a plurality of groups of positioning portions 421 spaced apart along the length direction, and each group of positioning portions 421 includes at least two positioning portions, so that the moving device 442 can first place the new bracket body 43 to be replaced in one of the positioning portions 421, and then transfer the old bracket body 43 to be replaced.

[0083] In order to adapt to different types of angle steels, the bracket body 43 can be replaced as a whole. Of course, two or more groups of bracket bodies 43 can also be set on the frame 42, and the bracket body 43 is a split structure, which includes a left bracket 434 and a right bracket 435, and all bracket bodies 43 are divided into two or more groups. The shape of the V-shaped notch 431 on each group of bracket bodies 43 is different. The bracket body 43 group to be used is selected according to the needs, and the other bracket body groups stay on both sides of the frame 42, such as Fig.14 , Fig.15As shown, specifically, the left bracket 434 is rotated to the side for avoidance through the left axis 436 connected to the frame 42, and the right bracket 435 is rotated to the side for avoidance through the right axis 437 connected to the frame 42, that is, the left bracket 434 and the right bracket 435 are separated.

[0084] The discharging and turning mechanism 5 comprises a discharging and conveying mechanism 51 and a second turning mechanism 52. The discharging and conveying mechanism 51 comprises a plurality of material rollers 511 arranged at intervals along the length direction of the galvanizing pool 41. The material rollers 511 rotate around their own axes to convey the angle steel 2 with the opening facing downwards. Fig.16 In order to prevent the angle steel 2 from slipping, part of the material roller 511 is magnetic, so as to absorb the angle steel 2.

[0085] The structure of the second flip mechanism 52 is similar to that of the first flip mechanism 11. The second material rack of the second flip mechanism 52 is located between adjacent material rollers 511. The number of second material racks corresponds to the number of second flip axes, and all second material racks are linked by connecting rods 113. When the transfer mechanism 3 transfers the angle steel 2 that has completed galvanizing in the galvanizing mechanism 4 to the second flip mechanism 52, the second material rack receives the angle steel 2 with its opening facing upwards. At this time, the angle steel 2 is in a state with its opening 21 facing the side. Then the second flip axis drives the second material rack to rotate. Under the action of the connecting rod 113, all second material racks rotate synchronously. The angle steel 2 is placed above the material roller 511. At this time, the opening 21 of the angle steel 2 is placed downward on the material roller 511, that is, the angle steel 2 enters the discharging conveying mechanism 51 with its opening facing downwards. Fig.17 shown.

[0086] A cooling trough 71 and a passivation trough 72 are arranged side by side at the downstream of the galvanizing pool 41, the discharging conveying mechanism 51 extends to the side of the cooling trough 71, and a branch conveying mechanism 721 is arranged on the side of the passivation trough 72. The structure of the branch conveying mechanism 721 is similar to that of the discharging conveying mechanism 51, and will not be described in detail. A material transfer mechanism 73 is also provided, which is used to transfer the angle steel 2 between the discharging conveying mechanism 51, the cooling trough 71, the passivation trough 72 and the branch conveying mechanism 721.

[0087] like Fig.18 As shown, the material moving mechanism 73 is provided with a plurality of magnetic ends 731 along the length direction, each magnetic end 731 extends vertically downward, and has a suction surface 732 at the lower end portion adapted to the outer wall of the angle steel 2, the suction surface 732 is a right-angle cutting surface, and the outer surface of the angle steel 2 with the opening 21 facing downward is just in contact with the suction surface 732.

[0088] Of course, in order to adapt to the absorption of angle steels 2 placed in different positions, the magnetic end 731 can be designed as a two-way end structure, with the suction surface 732 at one end being a right-angle cutting surface and the suction surface 732 at the other end being a right-angle protruding surface, such as Fig.19 shown.

[0089] Thus, the material moving mechanism 73 absorbs the angle steel 2 on the discharge conveying mechanism 51 and places it into the cooling tank 71. After cooling, the angle steel is placed into the passivation tank 72 through the material moving mechanism 73. Finally, the angle steel 2 is absorbed and taken out from the passivation tank 72 and placed into the branch conveying mechanism 721.

[0090] In order to ensure the hot-dip galvanizing effect of the angle steel 2, a blow-coating unit 53 is provided between the galvanizing pool 41 and the cooling tank 71, above the discharge conveying mechanism 51. Fig. 20 As shown, the blowing and coating unit 53 includes an upper blowing and coating part 531 and a lower blowing and coating part 532, an upper vertical driving mechanism 533 for driving the upper blowing and coating part 531 to rise and fall, a lower vertical driving mechanism 534 for driving the lower blowing and coating part 532 to rise and fall, and a transverse driving mechanism 535 for driving the upper driving mechanism 531 and the lower driving mechanism 532 to translate.

[0091] The lower surface of the upper blowing and plating body 531 and the upper surface of the lower blowing and plating body 532 both form a V-shaped surface, which can be adapted to the angle steel 2. Through the translation and lifting of the upper blowing and plating body 531 and the translation and lifting of the lower blowing and plating body 532, angle steels 2 of different sizes and models can be adapted. Here, the horizontal driving mechanism 535 can also be set separately, respectively driving the upper driving mechanism 531 and the lower driving mechanism 532 to translate independently.

[0092] Of course, in order to adapt to different types of angle steel 2, such as Figure 21-23 As shown, the plating unit 53 can also be designed as a plurality of plating plates 536 arranged at intervals, each plating plate 536 is provided with a circular plating hole 537, and the centers of adjacent plating holes 537 are staggered. When not in use, the plating plate 536 is vertically arranged on one side. When it is needed, a plating plate 536 is rotated to the target position, and the angle steel 2 passes through the plating hole 537, and the adapted plating plate 536 is called as needed. In order to improve stability, a step-shaped base 538 can also be provided, and the called plating plate 536 is set on the step-shaped base 538. The feeding mechanism 12 is placed with a plurality of angle steels 2 of different lengths or different models, and the plurality of angle steels 2 are disassembled from a package that can be spliced ​​into a complete finished product. For example, an iron tower is formed by splicing angle steels 2, and all the ungalvanized angle steels 2 of an iron tower are packaged independently, disassembled and placed in the feeding mechanism 12, and after all the angle steels 2 are hot-dip galvanized, they are formed into independent packages again.

[0093] To this end, a finished product distributing mechanism 6 is also included, which includes a first track 61, a second track 62 and a third track 63 in the X-axis, Y-axis and Z-axis directions respectively, and a material taking unit 64, such as Fig.24As shown, the material picking unit 64 can be raised and lowered along the third track 63, the third track 63 can be translated relative to the second track 62, and the second track 62 can be translated relative to the first track 61. Material picking arms 641 with adjustable spacing are also provided on both sides of the material picking unit 64, and the ends of the material picking arms 641 extending downward are provided with a magnetic attraction structure, specifically, the magnetic attraction structure has a fitting surface 642 adapted to the angle steel 2, and the fitting surface 642 has the same structure as the suction surface 732, which is a right-angle cutting surface.

[0094] The finished product distributing mechanism 6 also includes a plurality of distributing platforms 65, which are arranged at intervals along the X-axis direction. The X-axis direction here can be the extension direction of the branch conveying mechanism 721, or can be a direction perpendicular to the branch conveying mechanism 721, without any specific limitation.

[0095] The branch conveying mechanism 721 extends to the location of the finished product sorting mechanism 6, and the subpackaging table 65 includes at least one packaging table, that is, the material picking unit 64 of the finished product sorting mechanism 6 transfers the angle steels 2 of different sizes, lengths or models from the branch conveying mechanism 721 to different subpackaging tables 65. When performing overall packaging, the angle steels 2 on different subpackaging tables 65 are obtained and transferred to the packaging table for overall packaging of the iron tower.

[0096] A plating unit with the above structure may also be provided between the branch conveying mechanism 721 corresponding to the passivation tank 72 and the finished product distributing mechanism 6 .

[0097] In order to avoid heat damage or injury, a shell can be set above the angle steel hot-dip galvanizing system, or at least a shell can be set above the galvanizing pool 41.

[0098] A method for hot-dip galvanizing of angle steel comprises the following steps:

[0099] S1, a plurality of angle steels 2 are obtained by disassembling a package that can be assembled into a complete finished product, and a feeding mechanism 12 conveys the plurality of angle steels 2 obtained by disassembling to a first turning mechanism 11, and at this time, the angle steels 2 are in a state where the opening 21 is downward;

[0100] S2, after receiving the angle steel 2 with the opening 21 facing downward, the first turning mechanism 11 turns the angle steel 2 to a state where the opening 21 faces sideways;

[0101] S3, the transfer mechanism 3 transfers the angle steel 2 with the opening 21 facing the side to the galvanizing mechanism 4 in the galvanizing pool 41;

[0102] Specifically, the S3 step includes:

[0103] S31, the hook 31 moves to below the horizontal height of the first turning mechanism 11, but not directly below the first material rack 112 of the first turning mechanism 11, and the hook 31 moves upward so that the angle steel 2 is placed in the hook 31, while keeping the opening 21 of the angle steel 2 facing the side;

[0104] S32, the hook 31 moves upward with the angle steel 2 to separate from the first material rack 112 of the first turning mechanism 11, and moves to the top of the galvanizing mechanism 4;

[0105] S33, the hook 31 finds the V-shaped notch 431 of the bracket body 43 and moves downward, placing the angle steel 2 on the bracket body 43 of the galvanizing mechanism 4, while still keeping the opening 21 of the angle steel 2 facing the side, and the hook 31 continues to move downward until the angle steel 2 is separated from the hook 31, and then the hook 31 moves to reset;

[0106] S4, the angle steel 2 is galvanized with the opening facing the side;

[0107] S5, the transfer mechanism 3 transfers the galvanized angle steel 2 from the bracket body 43 of the galvanizing pool 41 to the second turning mechanism 52; specifically, the hook 31 moves to below the level of the V-shaped notch 431, but not directly below the bracket body 43, and the hook 31 moves upward, so that the angle steel 2 is placed in the hook 31 and separated from the bracket body 43;

[0108] S6, after receiving the angle steel 2 with the opening 21 facing the side, the second turning mechanism 52 turns the angle steel 2 to a state where the opening 21 faces downward, and places it into the discharge conveying mechanism 51;

[0109] S7, the discharging conveying mechanism 51 conveys the angle steel 2 to the position corresponding to the cooling groove 71, and the material moving mechanism 73 transfers the angle steel 2 into the cooling groove 71;

[0110] S8, the material transfer mechanism 73 transfers the angle steel 2 that has completed the cooling process to the passivation tank 72, and transfers it to the branch conveying mechanism 721 after completing the passivation process;

[0111] S9, the branch conveying mechanism 721 conveys the angle steel 2 to the finished product sorting mechanism 6. After the material picking unit 64 of the finished product sorting mechanism 6 obtains the angle steels 2 of different types on the subpackaging table 65, it is transferred to the packaging table for overall packaging, and multiple angle steels 2 that can be spliced ​​into a complete finished product are packaged into one.

[0112] The above specific implementation modes are used to explain the present invention rather than to limit the present invention. Any modification and change made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. An angle steel hot dip galvanizing system, characterized in that: include: The feeding and flipping mechanism (1) feeds at least one angle steel (2) with its opening facing downward, and after flipping, the opening of the angle steel (2) faces sideways; the feeding and flipping mechanism (1) comprises a feeding mechanism (12) and a first flipping mechanism (11); the first flipping mechanism (11) comprises a first flipping shaft (111) and a first material rack (112); the first material rack (112) is V-shaped and can rotate with the first flipping shaft (111) to realize flipping of the angle steel (2); A transfer mechanism (3) is used to transfer the angle steel (2) with its opening facing the side to the galvanizing mechanism (4), or to transfer it out of the galvanizing mechanism (4); the transfer mechanism (3) at least comprises a hook (31) for transferring the angle steel (2), and a driving unit (32) for driving the hook (31) to move, wherein the hook (31) comprises an inclined bottom wall (311) and two opposite vertical side walls (312); The galvanizing mechanism (4) is arranged in the galvanizing pool (41) to keep the angle steel (2) in a state of opening toward the side for galvanizing. The galvanizing mechanism (4) comprises a frame (42) and a plurality of bracket bodies (43) arranged at intervals on the frame (42). The bracket body (43) is formed with at least one V-shaped notch (431) with an opening facing upwards. The angle steel (2) is clamped in the V-shaped notch (431) with an opening facing toward the side. The discharging turning mechanism (5) ), comprising a discharging conveying mechanism (51), discharging at least one angle steel (2) with its opening facing sideways, and after being turned over, the angle steel (2) enters the discharging conveying mechanism (51) with its opening facing downwards; the discharging turning mechanism (5) further comprises a second turning mechanism (52), and the discharging conveying mechanism (51) comprises a plurality of material rollers (511) arranged at intervals along the length direction of the galvanizing pool (41), and the material rollers (511) rotate around their own axes to convey the angle steel (2) with its opening facing downwards.

2. The angle steel hot dip galvanizing system according to claim 1, characterized in that: The feeding turning mechanism (1) and the discharging turning mechanism (5) are arranged opposite to each other on two sides of the galvanizing pool (41).

3. The angle steel hot dip galvanizing system according to claim 1, characterized in that: There are multiple first material racks (112), and the multiple first material racks (112) are connected to the first flip shaft (111); or the multiple first material racks (112) are respectively connected to the multiple first flip shafts (111), and the multiple first material racks (112) are linked via a connecting rod (113).

4. The angle steel hot dip galvanizing system according to claim 1, characterized in that: The angle steel (2) opens to the side, its closed end abuts against one of the vertical side walls, and one side of its open end abuts against the connection between the other vertical side wall and the bottom wall; or, the outer side wall of the angle steel (2) fits against the inclined bottom wall.

5. The angle steel hot dip galvanizing system according to claim 1, characterized in that: The galvanizing mechanism (4) further comprises a vibration unit, which is used to drive the frame (42), the bracket body (43) and the angle steel (2) to vibrate and galvanize.

6. The angle steel hot dip galvanizing system according to claim 1, characterized in that: At least one material roller (511) is magnetic so as to absorb the angle steel (2).

7. The angle steel hot dip galvanizing system according to claim 1, characterized in that: It also includes a finished product distributing mechanism (6), which includes a first track (61), a second track (62) and a third track (63) in the X-axis, Y-axis and Z-axis directions respectively, and a material picking unit (64). The material picking unit (64) can be raised and lowered along the third track (63) and has a material picking arm (641) with adjustable spacing; the end of the material picking arm (641) has a magnetic attraction structure, which has a fitting surface (642) adapted to the angle steel (2).

8. The angle steel hot dip galvanizing system according to claim 7, characterized in that: The finished product sorting mechanism (6) comprises a plurality of subpackaging tables (65) which are arranged at intervals along the X-axis direction; the subpackaging tables (65) include at least one packaging table, and the material taking unit (64) obtains angle steels of various models or lengths from the remaining subpackaging tables and performs overall packaging at the packaging table.

9. The angle steel hot dip galvanizing system according to claim 1, characterized in that: The feeding mechanism (12) is loaded with a plurality of angle steels of different lengths or different models, and the plurality of angle steels are obtained by disassembling a package that can be spliced ​​into a complete finished product.

10. The angle steel hot dip galvanizing system according to claim 1, characterized in that: The galvanizing mechanism (4) further comprises a bracket body replacement unit (44), which comprises a storage frame (441) for placing bracket bodies (43) of various models, and a moving device (442) for transferring the bracket body (43); the bracket body (43) comprises an outer clamping portion (432) that can cooperate with the frame (42), and an inner clamping portion (433) that can cooperate with the moving device (442); the frame (42) is provided with a plurality of groups of positioning portions (421) spaced apart along the length direction, and each group of positioning portions (421) comprises at least two positioning portions.

11. The angle steel hot dip galvanizing system according to claim 1, characterized in that: A cooling trough (71) and a passivation trough (72) are arranged side by side downstream of the galvanizing pool (41); the discharge conveying mechanism (51) extends to the side of the cooling trough (71), and a branch conveying mechanism (721) is arranged on the side of the passivation trough (72).

12. The angle steel hot dip galvanizing system according to claim 11, characterized in that: It also includes a material transfer mechanism (73) provided with a plurality of magnetic end heads (731) for transferring the angle steel (2) between the discharge conveying mechanism (51), the cooling trough (71), the passivation trough (72) and the branch conveying mechanism (721).

13. The angle steel hot dip galvanizing system according to claim 11, characterized in that: It also includes a blowing and coating unit (53), which includes an upper blowing and coating part (531) and a lower blowing and coating part (532), an upper vertical driving mechanism (533) for driving the upper blowing and coating part (531) to rise and fall, a lower vertical driving mechanism (534) for driving the lower blowing and coating part (532) to rise and fall, and a transverse driving mechanism (535) for driving the upper vertical driving mechanism (533) and the lower vertical driving mechanism (534) to translate.

14. A method for hot-dip galvanizing angle steel using the angle steel hot-dip galvanizing system according to any one of claims 1 to 13, characterized in that: The following steps are involved: S1, the feeding mechanism conveys the angle steel to the first turning mechanism, and the angle steel is in a state of opening downward; S2, the first flipping mechanism flips the angle steel to a state where the opening faces the side; S3, the transfer mechanism transfers the angle steel with the opening facing the side to the galvanizing mechanism in the galvanizing pool; S4, the angle steel is galvanized with the opening facing the side; S5, the transfer mechanism transfers the galvanized angle steel to the second turning mechanism; S6. The second turning mechanism turns the angle steel to a state where the opening faces downward, and places it into the discharge conveying mechanism.

15. The angle steel hot-dip galvanizing method according to claim 14, characterized in that: The step S3 comprises the following steps: S31, the hook moves to below the horizontal height of the first flipping mechanism, and moves upward so that the angle steel is placed in the hook, while keeping the opening of the angle steel facing the side; S32, the hook moves with the angle steel to leave the first flipping mechanism and then moves to the top of the galvanizing mechanism; S33, the hook moves downward to place the angle steel on the bracket body of the galvanizing mechanism, while the angle steel opening is still kept facing the side, and the hook moves downward until the angle steel is separated from the hook, and then the hook moves to reset.

16. The angle steel hot-dip galvanizing method according to claim 14, characterized in that: The following steps are also included: S7, the discharging conveying mechanism conveys the angle steel to the position corresponding to the cooling trough, and the material transfer mechanism transfers the angle steel to the cooling trough; S8, the material transfer mechanism transfers the angle steel that has completed the cooling process to the passivation tank, and transfers it to the branch conveying mechanism after completing the passivation process; S9, the branch conveying mechanism conveys the angle steel to the finished product dividing mechanism.

17. The angle steel hot-dip galvanizing method according to claim 16, characterized in that: In the step S9, a plurality of angle steels that can be assembled into a complete finished product are packaged together; in the step S1, the package that can be assembled into a complete finished product is disassembled to obtain a plurality of angle steels, and the feeding mechanism conveys the plurality of angle steels to the first turning mechanism.

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