A continuous hot-dip plating apparatus

Abstract

This invention relates to the field of hot-dip plating technology, specifically to a continuous hot-dip plating equipment. It includes a rotating mechanism positioned in the middle of a platform, a clamping mechanism mounted on the rotating mechanism, and a loading mechanism, a plating mechanism, and a unloading mechanism mounted on the platform along the circumferential direction. The clamping mechanism includes a jaw assembly on the rotating mechanism for clamping workpieces, an outer support assembly on the jaw assembly for clamping workpieces at two flat joints, and a cover assembly on the jaw assembly for covering the workpieces. This invention employs a purely mechanical clamping method, requiring no electrical control structure, and can automatically clamp and release workpieces. The clamping mechanism does not come into contact with molten metal, thus improving its service life. It can perform continuous hot-dip plating operations, solving the technical problem that traditional electrical clamps are easily contaminated with molten metal, leading to damage to electronic components and affecting the normal use of the clamps.

Description

Technical Field

[0001] This invention relates to the field of hot-dip plating technology, and more particularly to a continuous hot-dip plating apparatus. Background Technology

[0002] To improve the service life of metal materials, especially metal components or products that operate outdoors or in harsh environments for extended periods, such as automobiles, building exterior metal cladding, metal pipes, and household appliances like air conditioners, a corrosion-resistant coating is often hot-dip plated onto the surface of steel strips or plates, components, etc. This process is called hot-dip plating. Pin-type workpieces are widely used in the field of electronic devices, and their shapes are diverse. Hot-dip tin plating, nickel plating, or other coatings can provide corrosion protection and increase conductivity.

[0003] Patent document CN2020214016720 discloses a continuous hot-dip galvanizing zinc pot equipment, relating to the field of galvanizing equipment technology. This continuous hot-dip galvanizing zinc pot equipment includes strip steel, a zinc liquid level inside the zinc pot, a submerged roller, a main zinc pot, a bottom right-side shut-off valve, a bottom zinc liquid conveying pipe, a zinc liquid pump, a bottom left-side shut-off valve, an auxiliary zinc pot, a zinc liquid height detector, a zinc liquid height controller, zinc ingot hoisting equipment, zinc ingots, a central zinc liquid conveying pipe, and shut-off valves.

[0004] However, in actual use, the inventors found that during the hot-dip plating process of traditional electrical clamps holding irregularly shaped pins, the clamps were easily contaminated with molten metal, which damaged the electronic components on the clamps and affected their normal use. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a continuous hot-dip plating equipment that uses a purely mechanical clamping method. This method requires no electrical structure control and can automatically clamp and release workpieces. The clamping mechanism does not come into contact with molten metal, thus improving its service life. It is highly automated and can perform continuous hot-dip plating operations. This solves the technical problem that traditional electrical clamps are easily contaminated with molten metal, which can damage electronic components on the clamps and affect their normal use.

[0006] To address the above technical issues, the following technical solution is adopted:

[0007] A continuous hot-dip galvanizing apparatus includes a rotating mechanism located at the center of a platform, a clamping mechanism located on the rotating mechanism, and a feeding mechanism, a galvanizing mechanism, and a unloading mechanism sequentially arranged on the platform along the circumferential direction.

[0008] The clamping mechanism is divided into several groups and is raised and lowered on the rotating mechanism. It includes a jaw assembly of the crossbeam portion for clamping the workpiece, an outer support assembly of the two flat joint portions for clamping the workpiece, and a cover assembly for covering the workpiece.

[0009] The clamping mechanism holds the crossbeam and flat joint of the workpiece to transport the workpiece sequentially between the three stations of the loading mechanism, the plating mechanism, and the unloading mechanism, and completes hot-dip plating on the two pins of the workpiece.

[0010] Preferably, the rotating mechanism includes:

[0011] A rotating column, which is rotatably positioned at the center of the platform;

[0012] A lifting unit, and several sets of the lifting units are arranged along the circumferential direction on the rotating column.

[0013] Preferably, the gripper assembly includes:

[0014] Mounting frame, the mounting frame being disposed on the lifting unit;

[0015] A hanger, which is rotatably disposed inside the mounting frame;

[0016] A first mounting plate is disposed on the hanger;

[0017] A wedge-shaped clamping block is fixedly disposed at the bottom of the first mounting plate;

[0018] A movable clamping block is slidably disposed at the bottom of the first mounting plate through a first sliding hole, and a first elastic element is provided between the movable clamping block and one end of the first sliding hole.

[0019] Preferably, the external support assembly includes an external clamping unit disposed on the hanger and a locking unit disposed on the hanger for controlling the external clamping unit, wherein the external clamping unit includes:

[0020] A second mounting plate is disposed on the hanger;

[0021] Two sets of lifting blocks are symmetrically slidably disposed at the bottom of the second mounting plate through second sliding holes;

[0022] A hollow tube, which is horizontally mounted on the lifting block;

[0023] A sleeve rod, wherein the sleeve rod is slidably matched and disposed inside the hollow tube;

[0024] An arc-shaped clamping block is disposed at one end of the sleeve rod and is adapted to the flat joint of the workpiece. A second elastic element is disposed between the arc-shaped clamping block and the end of the hollow tube.

[0025] Preferably, the locking unit includes:

[0026] Locking grooves are symmetrically formed on the inner sidewall of the second sliding hole;

[0027] Hook plates are symmetrically hinged to the two side walls of the lifting block via a pivot axis and are located inside the lock groove;

[0028] The hook claw is located at the bottom of one side of the hook plate, and a counterweight is provided inside it;

[0029] The hook groove is formed at the bottom of the lock groove and cooperates with the hook claw;

[0030] A lifting part is provided at one end of the lock groove and is connected to the hook groove;

[0031] A limiting pin is slidably disposed on one side wall of the hook plate through a socket. A third elastic element is provided between one end of the limiting pin and one end of the socket, and the other end of the limiting pin abuts against the side wall of the lock groove.

[0032] The limiting groove is formed on the side wall of the lock groove and is located on one side of the lifting part. When the hook pawl drives the hook plate to rotate to a horizontal state after passing the position of the lifting part, the limiting pin pops out into the limiting groove and the hook plate remains in a horizontal state.

[0033] A sliding part is provided at one end of the limiting groove and is used to drive the limiting pin to slide out of the limiting groove;

[0034] Two sets of return springs are respectively disposed between the lifting block and the two ends of the second sliding hole, and are used to drive the lifting block to move horizontally and reset with the hook plate.

[0035] Preferably, the sealing assembly includes:

[0036] The two sets of housings are symmetrically hinged at the bottom of the mounting frame via shafts, and the two sets of housings are joined together to close the frame.

[0037] A driven gear is disposed at one end of the shaft and is used to drive the two sets of covers to open and close.

[0038] Two sets of driving gears are symmetrically rotatably mounted on the mounting frame and are used to drive the driven gears.

[0039] A hot nitrogen nozzle, and several sets of the hot nitrogen nozzles are respectively disposed on the inner wall of the housing;

[0040] A cold nitrogen nozzle, and several sets of the cold nitrogen nozzles are mounted on the mounting frame.

[0041] Preferably, the feeding mechanism includes an arranging component disposed on the platform for uniformly arranging workpieces, and a flipping component disposed on the arranging component for sequentially adjusting the position of the workpieces.

[0042] Preferably, the arrangement component includes:

[0043] A base plate, which is disposed on the platform;

[0044] The hanging rack is mounted on the base plate via an upright plate. The crossbeam of the workpiece is hung on the hanging rack, and the workpieces are automatically arranged by being hung on the hanging rack in sequence at an angle.

[0045] Support grooves, two sets of the support grooves are symmetrically opened on the base plate, and the pins used to support the workpiece are kept in an inclined state;

[0046] A push plate is slidably disposed on the base plate and used to abut against the crossbeam of the workpiece; a fourth elastic element is provided between the push plate and the vertical plate.

[0047] A clearance strip hole is provided on the bracket, and the upper end of the push plate slides against the inner wall of the clearance strip hole.

[0048] A pusher, which is disposed on the push plate and is used to abut against the flat joint of the workpiece and the connection of the pin.

[0049] Preferably, the flipping component includes:

[0050] The U-shaped frame is mounted on the hanging bracket;

[0051] Two sets of lifting bar holes are symmetrically opened on the U-shaped frame;

[0052] The lifting blocks are slidably disposed on the lifting bar holes, and a fifth elastic element is provided between the lifting blocks and the ends of the lifting bar holes;

[0053] The rollers, two sets of the rollers are respectively rotatably mounted on the lifting block via a rotating shaft, and are used to block the crossbeam of the workpiece. The bracket is provided with a clearance through hole for the rollers to lift.

[0054] A friction ring, which is sleeved on the roller and used to adjust the pins of the workpiece to a vertical position;

[0055] A receiving groove is formed on the base plate and is opposite to the supporting groove to support the workpiece pins to keep them in a vertical state;

[0056] A wedge-shaped pad, which slides horizontally and is elastically disposed at the junction of the receiving groove and the supporting groove, and the pins used to support the workpiece are in a vertical state;

[0057] The first limiting rail is mounted on the base plate via a first hydraulic component and is used to drive the two sets of lifting blocks to separate synchronously to open the locking unit.

[0058] Preferably, the immersion plating mechanism includes an immersion plating tank disposed on the platform;

[0059] The feeding mechanism includes:

[0060] An extension plate is disposed on the platform;

[0061] The second limiting rail is lifted and mounted on the extension plate by a second hydraulic component, and is used to drive the two sets of lifting blocks to separate synchronously to close the locking unit;

[0062] A hanging plate, which is inclinedly disposed on the extension plate and serves as a crossbeam for supporting the workpiece;

[0063] The limiting strip holes are symmetrically opened on the extension plate in two sets, and the pins of the workpiece slide along the inside of the limiting strip holes;

[0064] Hanging holes are provided on the hanging plate and are used to avoid the descent of the wedge-shaped clamping block;

[0065] Two sets of wedge-shaped blocks are slidably and elastically disposed on the hanging plate, and the crossbeam portion used to block the workpiece rises again with the gripper assembly.

[0066] The beneficial effects of this invention are:

[0067] (1) In this invention, by setting up a clamping mechanism and a rotating mechanism, on the one hand, a purely mechanical clamping method is adopted, which does not require electrical structure control and can automatically clamp and release the workpiece. The clamping mechanism will not be contaminated with molten metal, thus improving its service life and enabling continuous hot-dip plating of the workpiece. On the other hand, centrifugal motion is used to quickly spin dry the molten metal on the workpiece, preventing uneven distribution of molten metal on the workpiece and the formation of burrs, thus improving the uniformity of the coating and the surface quality of the coating, thereby improving the hot-dip plating effect of the workpiece.

[0068] (2) In this invention, the combination of the cover assembly and the gripper assembly protects the workpiece and prevents the metal film on the surface of the immersion plating bath from adhering to the pins of the workpiece, ensuring the uniformity of the plating on the pins and improving the smoothness of the plating surface. On the other hand, it keeps the workpiece warm, ensuring the temperature of the liquid metal around the two pins of the workpiece is stable during the hot-dip plating process, improving the hot-dip plating effect. It also ensures the temperature of the air around the pins of the workpiece is stable when the excess liquid metal is shaken off, improving the forming effect of the plating.

[0069] (3) In this invention, the combination of the flipping component and the arranging component can, on the one hand, prevent the workpieces from being fed one by one in an orderly manner, improve the stability of workpiece feeding, and ensure that the workpieces are fed in the designated position, thereby increasing the accuracy of workpiece feeding and facilitating the clamping mechanism to accurately lift the workpieces; on the other hand, it can adjust the posture of the workpieces, flip the workpieces so that their pins are in a vertical state, and facilitate the clamping mechanism to accurately clamp the crossbeam and flat joint of the workpieces, resulting in a high degree of automation and good continuous feeding effect.

[0070] In summary, this equipment has the advantages of good coating effect, high degree of automation, and continuous feeding, and is especially suitable for the field of hot-dip galvanizing technology. Attached Figure Description

[0071] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0072] Figure 1 This is a schematic diagram of the workpiece's structure.

[0073] Figure 2 This is a schematic diagram of a continuous hot-dip galvanizing equipment.

[0074] Figure 3 This is a schematic diagram of the rotating mechanism.

[0075] Figure 4 This is a schematic diagram of the clamping mechanism.

[0076] Figure 5 This is a schematic diagram of the gripper assembly.

[0077] Figure 6 for Figure 5 A structural diagram from an upward perspective.

[0078] Figure 7 for Figure 5 The front view of the structure.

[0079] Figure 8 This is a schematic diagram of the hanger structure.

[0080] Figure 9 This is a schematic diagram of the wedge-shaped clamping block.

[0081] Figure 10 This is a structural schematic diagram of the external support component.

[0082] Figure 11 This is a schematic diagram of the hook plate.

[0083] Figure 12 This is a schematic diagram of the transmission when the locking unit is in operation.

[0084] Figure 13 This is a schematic diagram of the transmission when the locking unit is released.

[0085] Figure 14 This is a schematic diagram of the transmission when the locking unit is reset.

[0086] Figure 15 This is a schematic diagram of the structure when the enclosure assembly is fully open.

[0087] Figure 16 This is a schematic diagram of the structure when the enclosure assembly is fully closed.

[0088] Figure 17 A schematic diagram of the structure when the enclosure assembly is opened to a specified angle.

[0089] Figure 18 This is a schematic diagram of the feeding mechanism.

[0090] Figure 19 This is a schematic diagram of the flip component.

[0091] Figure 20 This is a schematic diagram of the arrangement components.

[0092] Figure 21 for Figure 20 A magnified view of a portion of point A in the middle.

[0093] Figure 22 This is a schematic diagram of the transmission process during workpiece loading.

[0094] Figure 23 This is a schematic diagram of the feeding mechanism. Detailed Implementation

[0095] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0096] Example 1

[0097] like Figures 1-23As shown, a continuous hot-dip galvanizing equipment includes a rotating mechanism 2 located at the middle of a platform 1, a clamping mechanism 3 located on the rotating mechanism 2, and a feeding mechanism 4, a galvanizing mechanism 5, and a discharging mechanism 6 arranged sequentially along the circumferential direction on the platform 1.

[0098] The clamping mechanism 3 is divided into several groups and is raised and lowered on the rotating mechanism 2. It includes a jaw assembly 31 on the rotating mechanism 2 for clamping the workpiece 7, an outer support assembly 32 on the jaw assembly 31 for clamping the workpiece 7, and a cover assembly 33 on the jaw assembly 31 for covering the workpiece 7.

[0099] The clamping mechanism 3 clamps the crossbeam portion 71 and the flat joint portion 72 of the workpiece 7 to transport the workpiece 7 sequentially between workstations and complete the hot-dip plating work on the two pins 73 of the workpiece 7.

[0100] It is worth mentioning that the lower ends of the two pins 73 of the workpiece 7 serve as electrical connection points, and in this embodiment, only the lower ends of the two pins 73 of the workpiece 7 need to be hot-dip plated.

[0101] In this embodiment, the clamping mechanism 3 and the rotating mechanism 2 work together to achieve the following: Firstly, the workpiece can be automatically clamped and released using a purely mechanical clamping method without the need for electrical structure control. The clamping mechanism 3 will not be contaminated with molten metal, thus improving its service life and enabling continuous hot-dip galvanizing of the workpiece. Secondly, the centrifugal motion is used to quickly dry the molten metal on the workpiece, preventing uneven distribution of molten metal on the workpiece and the formation of burrs. This improves the uniformity of the coating, resulting in a higher surface quality and enhancing the hot-dip galvanizing effect of the workpiece.

[0102] In detail, firstly, the workpieces are automatically arranged in a tilted manner on the arranging assembly 41. The flipping assembly 42 flips one of the workpieces at the front, causing the two pins 73 of the workpiece to turn to a vertical position. Then, the rotating column 21 drives a clamping mechanism 3 to move to a position above the arranging assembly 41 and then stops. The cover assembly 33 of the clamping mechanism 3 is fully opened. The lifting unit 22 drives the clamping mechanism 3 to descend, so that the gripper assembly 31 clamps the crossbeam 71 of the workpiece 7, and the outer support assembly 32 clamps the crossbeam 71 of the workpiece 7. The lifting unit 22 drives the clamping mechanism 3 to rise with the workpiece 7. The cover assembly 33 is fully closed to preheat the workpiece. Then, the rotating column 21 drives the clamping mechanism 3 to move to a position above the immersion tank 51 and then stops. The lifting unit 22 drives the clamping mechanism 3 to descend into the immersion tank 51. The cover assembly 33 is in the immersion tank. The immersion tank 51 is opened to a specified angle, allowing molten metal to enter the sealing assembly 33 for hot-dip plating of the lower ends of the two pins 73 of the workpiece. Then, the lifting unit 22 drives the clamping mechanism 3 to lift the workpiece 7 and remove it from the plating tank 51. The sealing assembly 33 closes completely again to keep the workpiece warm. The hanger 312 drives the workpiece to rotate through the gripper assembly 31 and the outer support assembly 32. Under the action of centrifugal force, excess molten metal is thrown off the lower ends of the pins 73 of the workpiece. The sealing assembly 33 opens to a specified angle again, and the excess molten metal drips back into the plating tank 51 to quickly cool the workpiece. Then, the rotating column 21 drives the clamping mechanism 3 to move the workpiece 7 to a position above the unloading mechanism 6 and then stops. The sealing assembly 33 opens completely again, and the clamping mechanism 3 automatically releases the workpiece onto the hanging plate 63. The workpieces are stacked neatly along the inclined hanging plate 63.

[0103] Furthermore, such as Figures 2-3 As shown, the rotating mechanism 2 includes:

[0104] The rotating column 21 is rotatably positioned in the middle of the platform 1. The rotating column 21 is driven by a drive motor of the prior art and rotates intermittently by a specified angle, so that the clamping mechanism 3 can move between the three stations of the feeding mechanism 4, the immersion plating mechanism 5, and the unloading mechanism 6.

[0105] Lifting unit 22, several sets of lifting units 22 are arranged along the circumferential direction on the rotating column 21. The lifting unit 22 adopts the existing screw linear drive method, including a screw 221 erected on the rotating column 21 and a threaded block 222 threaded on the screw 221. The screw 221 is driven by a stepper motor 223 to rotate forward and backward by a specified angle.

[0106] In this embodiment, the rotating mechanism 2 can automatically drive the clamping mechanism 3 to transfer the workpiece 7 sequentially between workstations, and can also drive the clamping mechanism 3 to lift and lower, making it convenient to lift the workpiece.

[0107] In detail, the rotating column 21 drives the clamping mechanism 3 to rotate the workpiece 7 by a specified angle, so that the clamping mechanism 3 stops at different work positions in sequence. The stepper motor 223 of the lifting unit 22 drives the lead screw 221 to rotate, and the lead screw 221 drives the clamping mechanism 3 to lift and lower through the threaded block 222.

[0108] Furthermore, such as Figures 4-9 As shown, the gripper assembly 31 includes:

[0109] Mounting frame 311 is disposed on the threaded block 222 and slidably disposed on the rotating column 21;

[0110] A hanger 312 is rotatably disposed inside the mounting frame 311, and a first motor 318 for driving the hanger 312 to rotate is provided on the mounting frame 311.

[0111] A first mounting plate 313 is disposed on the hanger 312;

[0112] A wedge-shaped clamping block 314 is fixedly disposed at the bottom of the first mounting plate 313;

[0113] A movable clamping block 315 is slidably disposed at the bottom of the first mounting plate 313 through a first sliding hole 316, and a first elastic element 317 is provided between the movable clamping block 315 and one end of the first sliding hole 316.

[0114] In this embodiment, the combination of the gripper assembly 31 and the lifting unit 22 can automatically clamp the crossbeam portion 71 of the workpiece 7, preventing the workpiece 7 from moving horizontally along the length direction of the flat joint portion 72 of the workpiece 7, resulting in a better clamping effect.

[0115] In detail, the rotating column 21 drives the clamping mechanism 3 to move to a position above the arrangement assembly 41 and then stops. The lifting unit 22 drives the gripper assembly 31 to descend, and the hanger 312 lowers with the wedge-shaped clamping block 314. The inclined surface of the wedge-shaped clamping block 314 drives the crossbeam portion 71 of the workpiece to move forward until the workpiece is disengaged from the inclined surface of the wedge-shaped clamping block 314. The moving clamping block 315 cooperates with the wedge-shaped clamping block 314 under the drive of the first elastic member 317 to clamp and fix the crossbeam portion 71 of the workpiece.

[0116] Furthermore, such as Figures 7-14 As shown, the external support assembly 32 includes an external clamping unit 321 disposed on the hanger 312 and a locking unit 322 disposed on the hanger 312 and used to control the external clamping unit 321. The external clamping unit 321 includes:

[0117] The second mounting plate 3211 is disposed on the hanger 312;

[0118] Two sets of lifting blocks 3212 are symmetrically slidably disposed at the bottom of the second mounting plate 3211 through the second sliding hole 3213;

[0119] Hollow tube 3214, which is horizontally mounted on the lifting block 3212;

[0120] Sleeve rod 3215, which is slidably matched inside the hollow tube 3214;

[0121] An arc-shaped clamping block 3216 is disposed at one end of the sleeve rod 3215 and is adapted to the flat joint 72 of the workpiece 7. A second elastic element 3217 is disposed between the arc-shaped clamping block 3216 and the end of the hollow tube 3214.

[0122] It should be noted that after the gripper assembly 31 and the outer support assembly 32 have both clamped the workpiece and completed the hot-dip galvanizing of the workpiece's pins 73, the first motor 318 drives the hanger 312 to rotate, so that the hanger 312 carries the workpiece to rotate through the gripper assembly 31 and the outer support assembly 32, and under the action of centrifugal force, it throws off the excess liquid metal on the workpiece's pins 73.

[0123] In this embodiment, the external support assembly 32 and the lifting unit 22 work together to automatically support and clamp the two flat joints 72 of the workpiece 7, preventing the workpiece 7 from moving horizontally along the length of the crossbeam 71 of the workpiece 7. The clamping effect is good when it works with the gripper assembly 31.

[0124] In detail, after the rotating column 21 drives the clamping mechanism 3 to move to the position above the arrangement assembly 41, it stops. The lifting unit 22 drives the outer support assembly 32 to descend. After the gripper assembly 31 clamps the crossbeam 71 of the workpiece 7, the first hydraulic component drives the first limit rail 429 to rise. The first limit rail 429 drives the two lifting blocks 3212 to move separately. The lifting blocks 3212 drive the arc-shaped clamping blocks 3216 to support and clamp the two flat joints 72 of the workpiece 7 to both sides through the hollow tube 3214, the sleeve rod 3215, and the second elastic element 3217. Under the action of the locking unit 322, the position of the two arc-shaped clamping blocks 3216 is fixed, thereby clamping and fixing the two flat joints 72 of the workpiece 7.

[0125] Furthermore, such as Figures 8-14 As shown, the locking unit 322 includes:

[0126] Locking groove 3221, the locking groove 3221 is symmetrically formed on the inner sidewall of the second sliding hole 3213;

[0127] Hook plate 3222, the hook plate 3222 is symmetrically hinged to the two side walls of the lifting block 3212 via a pivot axis, and is located inside the locking groove 3221;

[0128] Hook 3223, the hook 3223 is disposed at the bottom of one side of the hook plate 3222, and a counterweight is provided inside it;

[0129] Hook groove 3224, the hook groove 3224 is formed at the bottom of the lock groove 3221 and cooperates with the hook claw 3223;

[0130] A lifting part 3225 is disposed at one end of the locking groove 3221 and connected to the hook groove 3224;

[0131] A limiting pin 3226 is slidably disposed on one side wall of the hook plate 3222 through a insertion hole 3227. A third elastic element 3228 is provided between one end of the limiting pin 3226 and one end of the insertion hole 3227. The other end of the limiting pin 3226 abuts against the side wall of the locking groove 3221.

[0132] The limiting groove 3229 is formed on the side wall of the locking groove 3221 and is located on one side of the lifting part 3225. When the hook 3223 drives the hook plate 3222 to rotate to a horizontal state after passing the position of the lifting part 3225, the limiting pin 3226 pops out into the limiting groove 3229, and the hook plate 3222 remains in a horizontal state.

[0133] The sliding part 32291 is disposed at one end of the limiting groove 3229 and is used to drive the limiting pin 3226 to slide out of the limiting groove 3229.

[0134] The two sets of return springs 32292 are respectively disposed between the two ends of the lifting block 3212 and the second sliding hole 3213, and are used to drive the lifting block 3212 to move horizontally and reset with the hook plate 3222.

[0135] It is worth mentioning that the pivot on the hook plate 3222 is far away from the hook claw 3223, and there is a counterweight inside the hook claw 3223. Therefore, when the hook plate 3222 moves inside the lock groove 3221, the hook plate 3222 tilts to one side of the hook claw 3223. Under the action of gravity, the hook claw 3223 falls to the bottom of the lock groove 3221. When the hook plate 3222 moves to the position of the hook groove 3224, the hook claw 3223 falls into the hook groove 3224 under the action of gravity, thereby making the hook claw 3223 stuck in the hook groove 3224.

[0136] In this embodiment, the locking unit 322 and the outer support component 32 work together to automatically lock and open the outer support component 32, thereby achieving the effect of automatically clamping and releasing the workpiece. The purely mechanical clamping method will not be contaminated with molten metal.

[0137] In detail, when it is necessary to lock the outer support assembly 32, after the gripper assembly 31 clamps the crossbeam portion 71 of the workpiece 7, the first hydraulic component drives the first limiting track 429 to rise, driving the lifting block 3212 to support and clamp the two flat joint portions 72 of the workpiece 7 to both sides with the arc-shaped clamping block 3216. At the same time, the hook plates 3222 on both sides of the lifting block 3212 also move in the locking groove 3221. The hooks 3223 rest on the bottom of the locking groove 3221 under the action of gravity. After the two arc-shaped clamping blocks 3216 clamp the two flat joint portions 72 of the workpiece 7 to both sides, the first hydraulic component continues to drive the first limiting track 429 to rise, and the end of the hollow tube 3214 compresses the second elastic element 3217, causing the hook plates 322 to... When the 2nd part moves to the position of the hook groove 3224, the hook 3223 falls into the hook groove 3224 under the action of gravity. Then, the first hydraulic component drives the first limit rail 429 to descend and reset. The reset spring 32292 drives the two lifting blocks 3212 to move closer to each other. The hook plate 3222 moves back in the locking groove 3221. During the return movement, the hook 3223 gets stuck in the hook groove 3224, preventing the two lifting blocks 3212 from moving closer to each other and resetting. The second elastic element 3217 extends to restore the specified length. The second elastic element 3217 still has the compressive elastic force to drive the two arc-shaped clamping blocks 3216 to clamp the two flat joints 72 of the workpiece 7 to both sides, thereby locking the outer support assembly 32 to clamp and fix the workpiece 7.When the outer support assembly 32 needs to be opened, the rotating column 21 drives the clamping mechanism 3 to move to a position above the unloading mechanism 6 and then stops. The lifting unit 22 drives the outer support assembly 32 to descend to a designated position. The second hydraulic component drives the second limit rail 62 to rise, causing the second limit rail 62 to drive the two lifting blocks 3212 to move towards separation again, compressing the second elastic element 3217 again, causing the hook plate 3222 to move to the lifting part 3225 position. The hook claw 3223 rises along the lifting part 3225, causing the hook plate 3222 to gradually rotate to a horizontal state. When the hook plate 3222 rotates to a horizontal state, the limit pin 3226 slides out of the insertion hole 3227 under the elastic force of the third elastic element 3228. The end of the limit pin 3226 inserts into the limit groove 3229, preventing the hook plate 3222 from rotating again. Then, the second hydraulic component drives the second limit rail 62 to descend and reset. Spring 32292 drives the two lifting blocks 3212 to move closer together for reset. The limiting pin 3226 on the hook plate 3222 moves horizontally along the limiting groove 3229, keeping the hook plate 3222 horizontal. The hook claw 3223 will not fall into the hook groove 3224 during the return movement, allowing the lifting blocks 3212 to reset smoothly. When the lifting blocks 3212 return to the position of the sliding part 32291, the sliding part 32291 drives the limiting pin 3226 to disengage from the limiting groove 3229, causing the limiting pin 3226 to re-enter the insertion hole 3227. Its end abuts against the inner wall of the locking groove 3221. Under gravity, the hook claw 3223 rests again on the bottom of the locking groove 3221, and the hook plate 3222 tilts again for reset, facilitating future use. The two lifting blocks 3212 move closer together for reset, thereby causing the two arc-shaped clamping blocks 3216 to move closer together for reset, releasing the workpiece.

[0138] Example 2

[0139] like Figures 3-4 and Figures 15-17 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows:

[0140] Furthermore, such as Figures 3-4 and Figures 15-17 As shown, the enclosure assembly 33 includes:

[0141] The two sets of housings 331 are symmetrically hinged at the bottom of the mounting frame 311 via shafts, and the two sets of housings 331 are joined and closed.

[0142] A passive gear 332 is disposed at one end of the shaft and is used to drive the two sets of covers 331 to open and close.

[0143] Two sets of driving gears 333 are symmetrically rotatably mounted on the mounting frame 311 and are used to drive the passive gear 332. A second motor 336 for driving the driving gears 333 is provided on the mounting frame 311.

[0144] A hot nitrogen nozzle 334, several sets of the hot nitrogen nozzles 334 are respectively disposed on the inner wall of the housing 331. The hot nitrogen nozzles 334 are connected to an existing external hot nitrogen gas source through a hose and are equipped with a solenoid valve.

[0145] A cold nitrogen nozzle 335, several sets of the cold nitrogen nozzle 335 are arranged on the mounting frame 311. The cold nitrogen nozzle 335 is connected to an existing external cold nitrogen gas source through a hose and is also equipped with a solenoid valve.

[0146] The immersion plating mechanism 5 includes an immersion plating tank 51 disposed on the platform 1.

[0147] It should be noted that when clamping or releasing the workpiece, both covers 331 are fully opened (e.g., Figure 4 and Figure 15 As shown), to avoid interference between the two covers 331 and the workpiece.

[0148] It should also be noted that during hot-dip plating, a metal film will form on the surface of the molten metal in the plating bath 51. If the workpiece pins are directly immersed in the plating bath 51 through the molten metal surface, the metal film will adhere to the pins, affecting the plating effect. Therefore, when the workpiece pins enter the plating bath 51, the two covers 331 must be completely closed (e.g., Figure 16 As shown), after descending into the immersion plating tank 51, the two covers 331 open at a certain angle (as shown). Figure 17 As shown, the molten metal enters the enclosure assembly 33 to perform hot-dip plating on the lower ends of the two pins 73 of the workpiece, preventing the metal film from adhering to the pins of the workpiece. At the same time, the two covers 331 are slightly opened at a certain angle, and the hot nitrogen nozzles 334 inside the covers 331 introduce hot air, which can ensure that the temperature of the molten metal around the two pins 73 of the workpiece is stable and improve the hot-dip plating effect.

[0149] It is worth mentioning that when removing excess liquid metal, the workpiece pins rise and detach from the immersion tank 51 after plating. The two covers 331 remain slightly open at a certain angle. The first motor 318 drives the hanger 312 to rotate, and under the action of centrifugal force, the excess liquid metal on the workpiece pins 73 is removed. At the same time, the hot nitrogen nozzle 334 inside the cover 331 introduces hot air to keep the temperature of the air around the workpiece pins 73 stable. Meanwhile, the airflow from the hot nitrogen nozzle 334 blows off the liquid metal that falls onto the inner wall of the cover 331, so that the excess liquid metal drips back into the immersion tank 51, preventing liquid metal from adhering to the inner wall of 331. Then, the nitrogen nozzle 334 on the mounting frame 311 introduces cold air into the workpiece to facilitate rapid cooling and forming of the plating layer.

[0150] In this embodiment, the combination of the sealing assembly 33 and the gripper assembly 31 serves two purposes: firstly, it protects the workpiece, preventing the metal film on the surface of the immersion plating bath 51 from adhering to the workpiece's pins, ensuring the uniformity of the plating on the workpiece pins, and improving the smoothness of the plating surface; secondly, it insulates the workpiece, ensuring the stable temperature of the molten metal around the two pins 73 of the workpiece during the hot-dip plating process, thus improving the hot-dip plating effect, and also ensuring the stable temperature of the air around the pins 73 of the workpiece when removing excess molten metal, thus improving the coating formation effect.

[0151] In detail, when it is necessary to open or close the two covers 331, the second motor 336 drives the passive gear 332 through the active gear 333 to rotate the two covers 331 synchronously, thereby opening or closing the two covers 331. When it is necessary to introduce hot air into the covers 331, the hot nitrogen nozzle 334 is controlled by the solenoid valve to spray the existing external hot nitrogen source into the covers 331. When it is necessary to introduce cold air into the covers 331, the cold nitrogen nozzle 335 is controlled by the solenoid valve to spray the existing external cold nitrogen source into the covers 331.

[0152] Example 3

[0153] like Figure 2 and Figures 18-22 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 3 and Embodiment 1 is as follows:

[0154] Furthermore, such as Figure 2 and Figures 18-22 As shown, the feeding mechanism 4 includes an arrangement component 41 disposed on the platform 1 for uniformly arranging the workpieces 7, and a flipping component 42 disposed on the arrangement component 41 for sequentially adjusting the position of the workpieces 7.

[0155] The arrangement component 41 includes:

[0156] A base plate 411 is disposed on the platform 1;

[0157] Hanging bracket 412 is mounted on the base plate 411 via upright plate 413. The crossbeam 71 of the workpiece 7 is hung on the hanging bracket 412, and the workpieces 7 are automatically arranged by being hung on the hanging bracket 412 in sequence.

[0158] Support groove 414, two sets of support groove 414 are symmetrically opened on the base plate 411, and the pins 73 used to support the workpiece 7 are kept in an inclined state;

[0159] Push plate 415, which is slidably disposed on the base plate 411 and is used to abut against the crossbeam 71 of the workpiece 7. A fourth elastic element 416 is provided between the push plate 415 and the vertical plate 413.

[0160] A clearance strip hole 417 is provided on the bracket 412, and the upper end of the push plate 415 slides and matches the inner wall of the clearance strip hole 417.

[0161] Pusher 418 is disposed on push plate 415 and is used to abut against the connection between flat part 72 and pin 73 of workpiece 7.

[0162] It should be noted that the workpieces 7 are arranged at an angle on the hanger 412. In order to facilitate the horizontal stacking of the workpieces 7 and reduce the gap between two adjacent workpieces 7, compared with the workpieces 7 being arranged on the hanger 412 with the pins vertical, more workpieces 7 can be arranged on the hanger 412 per unit length with the pins tilted.

[0163] In this embodiment, the arrangement component 41 can automatically arrange the workpiece 7 and limit the workpiece 7 to ensure that the workpiece 7 moves forward stably, thus achieving the effect of automatic feeding and a high degree of automation.

[0164] In detail, the workpieces 7 are arranged sequentially on the hanger 412, the crossbeam 71 of the workpieces 7 is hung on the hanger 412, the two pins 73 of the workpieces 7 are respectively placed into the two support grooves 414, the push plate 415 and the push frame 418 drive the workpieces 7 to be stacked horizontally in sequence under the elastic force of the fourth elastic element 416, the workpieces 7 move forward steadily, and are fed one by one in sequence.

[0165] Furthermore, such as Figures 18-22 As shown, the flipping component 42 includes:

[0166] U-shaped frame 421, the U-shaped frame 421 is mounted on the hanging frame 412;

[0167] Lifting bar holes 422, two sets of lifting bar holes 422 are symmetrically opened on the U-shaped frame 421;

[0168] Lifting block 423, two sets of lifting blocks 423 are respectively slidably disposed on the lifting bar hole 422, and a fifth elastic element 424 is provided between the lifting block 423 and the end of the lifting bar hole 422;

[0169] Rollers 425, two sets of rollers 425 are rotatably mounted on the lifting block 423 via a rotating shaft, and are used to block the crossbeam 71 of the workpiece 7. The bracket 412 is provided with a clearance through hole for the rollers 425 to rise and fall.

[0170] The lifting block 423 is equipped with a third motor 4231 for driving the roller 425 to rotate;

[0171] Friction ring 426, which is sleeved on the roller 425 and is used to adjust the pins 73 of the workpiece 7 to a vertical position;

[0172] A receiving groove 427 is formed on the base plate 411 and is opposite to the supporting groove 414 to support the pins 73 of the workpiece 7 to keep them in a vertical state.

[0173] The wedge-shaped pad 428 is horizontally slidable and elastically disposed at the junction of the receiving groove 427 and the supporting groove 414, and the pin 73 used to support the workpiece 7 is in a vertical state.

[0174] The bottom of the receiving groove 427 is provided with a receiving cavity 4271, and the upper end of the receiving cavity 4271 is open. The wedge-shaped pad 428 is slidably disposed inside the receiving cavity 4271 through the side groove 4272. A sixth elastic element 4273 is provided between the wedge-shaped pad 428 and the inner wall of the receiving cavity 4271. The width of the receiving cavity 4271 and the wedge-shaped pad 428 are both smaller than the thickness of the needle 73 of the workpiece 7, that is, the lower end of the needle 73 of the workpiece 7 will not enter the receiving cavity 4271 downward, ensuring that the lower end of the needle 73 of the workpiece 7 slides horizontally into the receiving groove 427.

[0175] The first limiting rail 429 is mounted on the base plate 411 via a first hydraulic component and is used to drive the two sets of lifting blocks 3212 to separate synchronously to open the locking unit 322.

[0176] In this embodiment, the combination of the flipping component 42 and the arranging component 41 can, on the one hand, prevent the workpieces 7 from being fed one by one in an orderly manner, thereby improving the stability of the workpiece feeding and ensuring that the workpieces 7 are fed in the designated position, thus increasing the accuracy of the workpiece feeding and facilitating the precise lifting of the workpieces by the clamping mechanism 3; on the other hand, it can adjust the posture of the workpieces 7, flipping the workpieces 7 so that their pins are in a vertical state, making it convenient for the clamping mechanism 3 to accurately clamp the crossbeam 71 and the flat joint 72 of the workpieces 7, resulting in a high degree of automation and good continuous feeding effect.

[0177] In detail, several workpieces 7 are arranged on the hanger 412 under the pushing force of the push plate 415 and the push frame 418. The roller 425 blocks the forward movement of the front workpieces 7, causing several workpieces 7 to remain on the hanger 412. When loading is required, the third motor 4231 drives the two rollers 425 to rotate. The rollers 425 contact the crossbeam portion 71 of the front workpiece 7 through the friction ring 426, driving the workpiece 7 to flip upward around the crossbeam portion 71 as the axis. This causes the pins of the workpiece 7 to drive the wedge-shaped pad 428 to slide into the receiving cavity 4271 within the support groove 414, until the pins of the workpiece 7 flip upward and disengage from the wedge-shaped pad 428. The wedge-shaped pad 428 slides out of the receiving cavity 4271 and resets under the elastic force of the sixth elastic element 4273. At this time, the third motor 4231 stops driving the two rollers 425. The pin of the workpiece 7 stands on the wedge-shaped pad 428 due to gravity, that is, the lower end of the pin of the workpiece 7 rests on the upper surface of the wedge-shaped pad 428, so that the pin of the workpiece 7 remains vertical, completing the posture adjustment of the workpiece 7. Then, the lifting unit 22 drives the clamping mechanism 3 to descend, and the wedge-shaped clamping block 314 of the gripper assembly 31 gradually inserts downward into the gap between the front workpiece and the rear workpiece. The wedge-shaped clamping block 314 moves along the clearance strip hole. During the descent of 417, the inclined surface of the wedge-shaped clamping block 314 drives the workpiece at the front end to move forward. The crossbeam portion 71 of the workpiece 7 presses down the roller 425, causing the lifting block 423 to compress the fifth elastic element 424. At the same time, the lower end of the needle foot of the workpiece 7 moves horizontally from the wedge-shaped pad 428 to the designated position in the receiving groove 427. At this time, the crossbeam portion 71 of the workpiece 7 disengages from the inclined surface of the wedge-shaped clamping block 314, and the moving clamping block 315 and the wedge-shaped clamping block 314 clamp the crossbeam portion 71 of the workpiece 7. Then, the first hydraulic component drives the first limiting rail 429 to rise, and the first limiting rail 429 drives the two lifting blocks 3212. The arc-shaped clamping block 3216 supports and clamps the two flat joints 72 of the workpiece 7 on both sides. At the same time, the locking unit 322 locks the outer support assembly 32 to clamp and fix the workpiece 7. The first hydraulic component drives the first limit rail 429 to descend and reset, thereby completing the loading of the front workpiece. The lifting unit 22 drives the clamping mechanism 3 to rise with the front workpiece. The wedge-shaped clamping block 314 rises, and the roller 425 rises and resets under the elastic force of the fifth elastic element 424. The workpieces arranged behind advance as a whole under the pushing force of the push plate 415 and the push frame 418, and abut against the roller 425 again, which is convenient for loading again, thereby achieving the effect of automatic continuous loading.

[0178] Example 4

[0179] like Figures 2-3 and Figure 23 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as those in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 4 and Embodiment 1 is as follows:

[0180] Furthermore, such as Figures 2-3 and Figure 23 As shown, the feeding mechanism 6 includes:

[0181] An extension plate 61 is disposed on the platform 1;

[0182] The second limiting rail 62 is mounted on the extension plate 61 by means of a second hydraulic component and is used to drive the two sets of lifting blocks 3212 to separate synchronously to close the locking unit 322.

[0183] Hanging plate 63, which is inclinedly disposed on the extension plate 61 and is used to support the crossbeam portion 71 of the workpiece 7;

[0184] Limiting strip holes 64, two sets of the limiting strip holes 64 are symmetrically opened on the extension plate 61, and the pins 73 of the workpiece 7 slide along the inside of the limiting strip holes 64;

[0185] Hanging hole 65, the hanging hole 65 is formed on the hanging plate 63 and is used to avoid the descent action of the wedge-shaped clamp 314;

[0186] Two sets of wedge-shaped blocks 66 are slidably and elastically disposed on the hanging plate 63, and the crossbeam 71 used to block the workpiece 7 rises again with the gripper assembly 31.

[0187] In this embodiment, the unloading mechanism 6 enables automatic unloading, and the unloaded workpieces are arranged neatly.

[0188] In detail, after the rotating column 21 drives the clamping mechanism 3 to move the workpiece 7 to a position above the unloading mechanism 6, it stops. The cover assembly 33 fully opens again, and the lifting unit 22 drives the clamping mechanism 3 to descend. During the descent, the crossbeam 71 of the workpiece 7 presses down on the inclined surface of the wedge-shaped stop 66, forcing the wedge-shaped stop 66 to slide horizontally. After the crossbeam 71 of the workpiece 7 disengages from the inclined surface of the wedge-shaped stop 66, it continues to descend until it reaches the hanging plate 63. The needle 73 falls into the limiting strip hole 64. Then, the second hydraulic component drives the second limiting track 62. The upward movement causes the second limiting rail 62 to drive the two lifting blocks 3212 to move further apart, causing the hook plate 3222 to move to the lifting part 3225 position. The lifting part 3225 drives the hook plate 3222 to gradually rotate to a horizontal state. When the hook plate 3222 rotates to a horizontal state, the end of the limiting pin 3226 inserts into the limiting groove 3229, preventing the hook plate 3222 from rotating again. Then, the second hydraulic component drives the second limiting rail 62 to descend and reset. The reset spring 32292 drives the two lifting blocks 3212 to move closer to each other to reset. The limiting pin 3226 on plate 22 moves horizontally along the limiting groove 3229, keeping the hook plate 3222 horizontal. Then, the sliding part 32291 drives the limiting pin 3226 to disengage from the limiting groove 3229, allowing the limiting pin 3226 to re-enter the insertion hole 3227. Under gravity, the hook claw 3223 rests on the bottom of the locking groove 3221 again, and the hook plate 3222 tilts again to reset for future use. The two lifting blocks 3212 move closer together to reset, thereby bringing the two arc-shaped clamping blocks 3216 closer together to reset, releasing the workpiece. The flat joint 72, then the lifting unit 22 drives the clamping mechanism 3 to rise and reset. The moving clamping block 315 and the wedge clamping block 314 of the gripper assembly 31 still clamp the crossbeam part 71 of the workpiece 7 and carry the workpiece 7 to rise. However, the wedge stop 66 blocks the crossbeam part 71 of the workpiece 7 from rising with the gripper assembly 31, thereby intercepting the workpiece 7 on the hanging plate 63. The pin 73 is in the limiting strip hole 64. Due to the inclined setting of the hanging plate 63, the workpiece 7 intercepted on the hanging plate 63 slides down and stacks due to gravity, continuously and automatically unloads, and is arranged neatly.

[0189] Work process:

[0190] First, the workpieces are automatically arranged in a tilted manner on the arranging assembly 41. The flipping assembly 42 flips one of the workpieces at the front, causing the two pins 73 of the workpiece to turn to a vertical position. Then, the rotating column 21 drives a clamping mechanism 3 to move to a position above the arranging assembly 41 and then stops. The cover assembly 33 of the clamping mechanism 3 is fully opened. The lifting unit 22 drives the clamping mechanism 3 to descend, so that the gripper assembly 31 clamps the crossbeam portion 71 of the workpiece 7, and the outer support assembly 32 clamps the crossbeam portion 71 of the workpiece 7. The lifting unit 22 drives the clamping mechanism 3 to rise with the workpiece 7. The cover assembly 33 is fully closed to preheat the workpiece. Then, the rotating column 21 drives the clamping mechanism 3 to move to a position above the immersion tank 51 and then stops. The lifting unit 22 drives the clamping mechanism 3 to descend into the immersion tank 51. The cover assembly 33 is in the immersion tank 51. The inner part opens to a specified angle, allowing molten metal to enter the sealing assembly 33 for hot-dip plating of the lower ends of the two pins 73 of the workpiece. Then, the lifting unit 22 drives the clamping mechanism 3 to lift the workpiece 7, removing it from the plating tank 51. The sealing assembly 33 closes completely again to keep the workpiece warm. The hanger 312 drives the workpiece to rotate via the gripper assembly 31 and the outer support assembly 32. Under the action of centrifugal force, excess molten metal is thrown off the lower ends of the pins 73 of the workpiece. The sealing assembly 33 opens to a specified angle again, and excess molten metal drips back into the plating tank 51 to quickly cool the workpiece. Then, the rotating column 21 drives the clamping mechanism 3 to move the workpiece 7 to a position above the unloading mechanism 6 and then stops. The sealing assembly 33 opens completely again, and the clamping mechanism 3 automatically releases the workpiece onto the hanging plate 63. The workpieces are stacked neatly along the inclined hanging plate 63.

[0191] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0192] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0193] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A continuous hot-dip galvanizing apparatus, characterized in that, It includes a rotating mechanism (2) located in the middle of the platform (1), a clamping mechanism (3) located on the rotating mechanism (2), and a loading mechanism (4), a plating mechanism (5), and a unloading mechanism (6) arranged sequentially on the platform (1) along the circumferential direction. The clamping mechanism (3) is divided into several groups and is raised and lowered on the rotating mechanism (2). It includes a jaw assembly (31) on the crossbeam (71) of the rotating mechanism (2) for clamping the workpiece (7), an outer support assembly (32) on the jaw assembly (31) for clamping the workpiece (7) and two flat joints (72) on the jaw assembly (31) for clamping the workpiece (7), and a cover assembly (33) on the jaw assembly (31) for covering the workpiece (7). The rotating mechanism (2) includes: A rotating column (21) is rotatably positioned in the middle of the platform (1); Lifting unit (22), several sets of the lifting units (22) are arranged on the rotating column (21) along the circumferential direction; The gripper assembly (31) includes: Mounting frame (311), the mounting frame (311) is disposed on the lifting unit (22); Hanger (312), which is rotatably disposed inside the mounting frame (311); A first mounting plate (313) is disposed on the hanger (312); A wedge-shaped clamp (314) is fixedly disposed at the bottom of the first mounting plate (313); A movable clamping block (315) is slidably disposed at the bottom of the first mounting plate (313) through a first sliding hole (316), and a first elastic element (317) is provided between the movable clamping block (315) and one end of the first sliding hole (316). The external support assembly (32) includes an external clamping unit (321) disposed on the hanger (312) and a locking unit (322) disposed on the hanger (312) for controlling the external clamping unit (321). The external clamping unit (321) includes: The second mounting plate (3211) is disposed on the hanger (312); Two sets of lifting blocks (3212) are symmetrically slidably disposed at the bottom of the second mounting plate (3211) through the second sliding hole (3213); A hollow tube (3214) is horizontally mounted on the lifting block (3212); Sleeve rod (3215), which is slidably matched inside the hollow tube (3214); An arc-shaped clamp (3216) is provided at one end of the sleeve rod (3215) and is adapted to the flat joint (72) of the workpiece (7). A second elastic element (3217) is provided between the arc-shaped clamp (3216) and the end of the hollow tube (3214).

2. The continuous hot-dip galvanizing equipment according to claim 1, characterized in that, The locking unit (322) includes: Locking groove (3221), the locking groove (3221) is symmetrically opened on the inner side wall of the second sliding hole (3213); Hook plate (3222), the hook plate (3222) is symmetrically hinged to the two side walls of the lifting block (3212) by a pivot axis, and is located inside the lock groove (3221); The hook (3223) is located at the bottom of one side of the hook plate (3222) and has a counterweight inside. The hook groove (3224) is formed at the bottom of the lock groove (3221) and cooperates with the hook claw (3223); A lifting part (3225) is provided at one end of the locking groove (3221) and is connected to the hook groove (3224); A limiting pin (3226) is slidably disposed on one side wall of the hook plate (3222) through a socket (3227). A third elastic element (3228) is provided between one end of the limiting pin (3226) and one end of the socket (3227). The other end of the limiting pin (3226) abuts against the side wall of the locking groove (3221). The limiting groove (3229) is formed on the side wall of the lock groove (3221) and is located on one side of the lifting part (3225); The sliding part (32291) is provided at one end of the limiting groove (3229) and is used to drive the limiting pin (3226) to slide out of the limiting groove (3229). The two sets of return springs (32292) are respectively disposed between the two ends of the lifting block (3212) and the second sliding hole (3213), and are used to drive the lifting block (3212) to move horizontally and reset with the hook plate (3222).

3. The continuous hot-dip galvanizing equipment according to claim 1, characterized in that, The enclosure assembly (33) includes: The two sets of housings (331) are symmetrically hinged at the bottom of the mounting frame (311) by means of a shaft, and the two sets of housings (331) are joined and closed. A passive gear (332) is disposed at one end of the shaft and is used to drive the two sets of covers (331) to open and close. The two sets of driving gears (333) are symmetrically rotated on the mounting frame (311) and are used to drive the driven gear (332).

4. The continuous hot-dip galvanizing equipment according to claim 1, characterized in that, The feeding mechanism (4) includes an arrangement component (41) disposed on the platform (1) for uniformly arranging workpieces (7) and a flipping component (42) disposed on the arrangement component (41) for sequentially adjusting the position of workpieces (7).

5. A continuous hot-dip galvanizing apparatus according to claim 4, characterized in that, The arrangement component (41) includes: A base plate (411) is disposed on the platform (1); Hanging bracket (412), the hanging bracket (412) is set on the base plate (411) by the upright plate (413), the crossbeam part (71) of the workpiece (7) is hung on the hanging bracket (412), and the workpiece (7) is automatically arranged by tilting and hanging on the hanging bracket (412) in sequence; Support grooves (414), two sets of support grooves (414) are symmetrically opened on the base plate (411), and the pins (73) used to support the workpiece (7) are kept in an inclined state; Push plate (415), which is slidably disposed on the base plate (411) and is used to abut against the crossbeam (71) of the workpiece (7). A fourth elastic element (416) is provided between the push plate (415) and the vertical plate (413). A clearance strip hole (417) is provided on the bracket (412), and the upper end of the push plate (415) slides and matches the inner wall of the clearance strip hole (417); Pusher (418), which is disposed on the push plate (415) and is used to abut against the connection between the flat part (72) and the pin (73) of the workpiece (7).

6. The continuous hot-dip galvanizing equipment according to claim 5, characterized in that, The flipping component (42) includes: U-shaped frame (421), the U-shaped frame (421) is mounted on the hanging frame (412); Lifting bar holes (422), two sets of lifting bar holes (422) are symmetrically opened on the U-shaped frame (421); Lifting block (423), two sets of lifting blocks (423) are respectively slidably disposed on the lifting bar hole (422), and a fifth elastic element (424) is provided between the lifting block (423) and the end of the lifting bar hole (422). Rollers (425), two sets of rollers (425) are respectively rotatably mounted on the lifting block (423) via a rotating shaft, and are used to block the crossbeam (71) of the workpiece (7). The bracket (412) is provided with a clearance through hole for the rollers (425) to lift. Friction ring (426), which is sleeved on the roller (425) and is used to adjust the pin (73) of the workpiece (7) to a vertical position; A receiving groove (427) is formed on the base plate (411) and is connected to the supporting groove (414) to support the pins (73) of the workpiece (7) to keep them in a vertical state; A wedge-shaped pad (428) is horizontally slidable and elastically disposed at the junction of the receiving groove (427) and the supporting groove (414), and the pin (73) used to support the workpiece (7) is in a vertical state. The first limiting rail (429) is mounted on the base plate (411) by means of a first hydraulic component.

7. The continuous hot-dip galvanizing equipment according to claim 1, characterized in that, The immersion plating mechanism (5) includes an immersion plating tank (51) disposed on the platform (1); The feeding mechanism (6) includes: An extension plate (61) is disposed on the platform (1); The second limiting rail (62) is mounted on the extension plate (61) by means of a second hydraulic component. Hanging plate (63), which is inclinedly disposed on the extension plate (61) and is used to support the crossbeam (71) of the workpiece (7). Limiting strip holes (64), two sets of the limiting strip holes (64) are symmetrically opened on the extension plate (61), and the pins (73) of the workpiece (7) slide along the inside of the limiting strip holes (64); Hanging hole (65), the hanging hole (65) is formed on the hanging plate (63); Two sets of wedge-shaped blocks (66) slide and are elastically disposed on the hanging plate (63), and the crossbeam (71) used to block the workpiece (7) rises again with the gripper assembly (31).

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