Continuous hot dipping equipment

Abstract

The invention relates to the technical field of hot dipping, in particular to continuous hot dipping equipment which comprises a rotating mechanism arranged in the middle of a platform, a clamping mechanism arranged on the rotating mechanism, and a feeding mechanism, a dipping mechanism and a discharging mechanism which are arranged on the platform in the circumferential direction. The clamping mechanism comprises a clamping jaw assembly arranged on the rotating mechanism and used for clamping a cross beam part of the workpiece, an outer supporting assembly arranged on the clamping jaw assembly and used for clamping two butt joint parts of the workpiece, and a covering and sealing assembly arranged on the clamping jaw assembly and used for covering the workpiece. A pure mechanical clamping mode is adopted, electric structure control is not needed, workpieces can be automatically clamped and released, a clamping mechanism cannot be contaminated by metal liquid, the service life is prolonged, continuous hot dipping work can be carried out, and the problems that a traditional electric clamp is prone to being contaminated by the metal liquid, electronic elements on the clamp are damaged, and the production efficiency is high are solved. And normal use of the clamp is influenced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot-dip plating, in particular to a continuous hot-dip plating equipment. BACKGROUND

[0002] In order to improve the service life of metal materials, especially metal components or metal products working in outdoor or harsh environment for a long time, such as automobiles, building outer covering metal layer, metal pipe fittings, household appliances such as air conditioners, etc. A layer of corrosion-resistant coating is often hot-dip plated on the surface of steel strip or steel plate, component, etc. This process is called hot-dip plating process. Pin-shaped workpieces are widely used in the field of electronic devices, and have various shapes. Hot-dip plating of tin, nickel and other coatings can prevent corrosion and increase conductivity.

[0003] The patent document with patent number CN2020214016720 discloses a continuous hot-dip galvanizing zinc pot equipment device, relating to the technical field of galvanizing equipment. The continuous hot-dip galvanizing zinc pot equipment device includes a strip steel, a zinc liquid level in a zinc pot, a submerged roll, a main zinc pot, a bottom right shut-off valve, a bottom zinc liquid conveying pipeline, a zinc liquid pump, a bottom left shut-off valve, an auxiliary zinc pot, a zinc liquid level detector, a zinc liquid level controller, a zinc ingot hoisting equipment, a zinc ingot, a middle zinc liquid conveying pipeline, and a shut-off valve.

[0004] However, in actual use, the inventors found that in the process of clamping the special-shaped pin for hot-dip plating by the traditional electrical clamp, the clamp is easy to be contaminated by metal liquid, which causes damage to the electronic elements on the clamp and affects the normal use of the clamp. SUMMARY

[0005] The purpose of the present application is to solve the technical problems that the traditional electrical clamp is easy to be contaminated by metal liquid, which causes damage to the electronic elements on the clamp and affects the normal use of the clamp, by setting a continuous hot-dip plating equipment, using a pure mechanical clamping method, without the need for electrical structure control, and being able to automatically clamp and release the workpiece. The clamping mechanism will not be contaminated by metal liquid, improving the service life and being highly automated, and can perform continuous hot-dip plating work.

[0006] In view of the above technical problems, the technical scheme is as follows: A continuous hot-dip plating equipment, comprising a rotating mechanism arranged at the middle position of a platform, a clamping mechanism arranged on the rotating mechanism, and a feeding mechanism, a plating mechanism, and a discharging mechanism arranged in sequence along the circumferential direction on the platform. The clamping mechanism is divided into several groups and is arranged in a lifting manner on the rotating mechanism, and comprises a jaw assembly arranged on the rotating mechanism and used for clamping a beam part of the workpiece, an outer support assembly arranged on the jaw assembly and used for clamping two flat connecting parts of the workpiece, and a cover assembly arranged on the jaw assembly and used for covering the workpiece. The clamping mechanism clamps the crossbeam part and the flat joint part of the workpiece to hoist the workpiece and sequentially transfer the workpiece between the feeding mechanism, the immersion plating mechanism and the discharging mechanism to complete the hot immersion plating of the two pins of the workpiece.

[0007] Preferably, the rotating mechanism comprises: a rotating column, which is arranged at the middle position of the platform; a plurality of lifting units, which are arranged on the rotating column along the circumferential direction.

[0008] Preferably, the clamping jaw assembly comprises: a mounting frame, which is arranged on the lifting unit; a hanger, which is rotatably arranged inside the mounting frame; a first mounting plate, which is arranged on the hanger; a wedge-shaped clamping block, which is fixedly arranged at the bottom of the first mounting plate; a movable clamping block, which is slidingly arranged at the bottom of the first mounting plate through a first sliding hole, and a first elastic member is arranged between the movable clamping block and one end of the first sliding hole.

[0009] Preferably, the outer supporting assembly comprises an outer clamping unit arranged on the hanger and a locking unit arranged on the hanger and used for controlling the outer clamping unit, and the outer clamping unit comprises: a second mounting plate, which is arranged on the hanger; a pair of hanger blocks, which are symmetrically slidingly arranged at the bottom of the second mounting plate through a second sliding hole; a hollow tube, which is horizontally arranged on the hanger block; a sleeve rod, which is slidingly matched arranged inside the hollow tube; an arc-shaped clamping block, which is arranged at one end of the sleeve rod and is matched with the flat joint part of the workpiece, and a second elastic member is arranged between the arc-shaped clamping block and the end of the hollow tube.

[0010] Preferably, the locking unit comprises: a locking groove, which is symmetrically arranged on the inner wall of the second sliding hole; a hook plate, which is symmetrically hingedly arranged on the side walls of the hanger block and is located inside the locking groove; a hook claw, which is arranged at the bottom of one side of the hook plate and has a counterweight inside; a hook groove, which is arranged at the bottom of the locking groove and is matched with the hook claw; The lifting part is arranged at one end of the lock channel and connected with the hook groove; The limiting pin is slidably arranged at one side wall of the hook plate through the insertion hole, a third elastic member is arranged between one end of the limiting pin and one end of the insertion hole, and the other end of the limiting pin abuts against the side wall of the lock channel; The limiting slot is arranged on the side wall of the lock channel and located at one side of the lifting part, the limiting pin is popped into the limiting slot when the hook claw drives the hook plate to turn to the horizontal state after passing the position of the lifting part, and the hook plate remains in the horizontal state; The sliding-out part is arranged at one end of the limiting slot and used for driving the limiting pin to slide out of the limiting slot; Two groups of the reset springs are arranged between the hanging block and two ends of the second sliding hole respectively and used for driving the hanging block to horizontally move the hook plate to reset.

[0011] Preferably, the cover assembly comprises: Two groups of the cover shells are symmetrically hingedly arranged at the bottom of the mounting frame through the shaft rod, and the two groups of the cover shells are abutted and closed; The passive gear is arranged at one end of the shaft rod and used for driving the two groups of the cover shells to open and close; Two groups of the driving gears are symmetrically rotatably arranged on the mounting frame and used for driving the passive gear; A plurality of groups of the hot nitrogen nozzles are respectively arranged on the inner wall of the cover shell; A plurality of groups of the cold nitrogen nozzles are arranged on the mounting frame.

[0012] Preferably, the feeding mechanism comprises an arrangement assembly arranged on the platform and used for uniformly arranging workpieces and a turnover assembly arranged on the arrangement assembly and used for sequentially adjusting positions of the workpieces.

[0013] Preferably, the arrangement assembly comprises: The bottom plate is arranged on the platform; The hanging rack is arranged on the bottom plate through the vertical plate, the beam part of the workpiece is hung on the hanging rack, and the workpiece is automatically arranged by being sequentially and obliquely hung on the hanging rack; Two groups of the support strip grooves are symmetrically arranged on the bottom plate and used for supporting the needle feet of the workpiece to keep the oblique state; The push plate is slidably arranged on the bottom plate and used for abutting against the beam part of the workpiece, and a fourth elastic member is arranged between the push plate and the vertical plate; The avoiding strip hole is arranged on the hanging rack, and the upper end of the push plate is slidably matched with the inner wall of the avoiding strip hole; A push frame is arranged on the push plate and used to abut against the joint of the flat joint and the pin of the workpiece.

[0014] As preferred, the turnover assembly comprises: A U-shaped frame is arranged on the hanger; Two groups of lifting bar holes are symmetrically arranged on the U-shaped frame; Two groups of lifting blocks are respectively arranged on the lifting bar holes in a sliding mode, and a fifth elastic member is arranged between the lifting blocks and the end of the lifting bar hole; Two groups of rollers are respectively arranged on the lifting blocks in a rotating mode through a rotating shaft, and used to block the cross beam of the workpiece, and a avoiding through hole is arranged on the hanger for the lifting of the roller; A friction ring is sleeved on the roller and used to adjust the pin of the workpiece to be vertical; A containing bar groove is arranged on the bottom plate and connected with the supporting bar groove, and used to support the pin of the workpiece to be vertical; A wedge-shaped pad is arranged at the joint of the containing bar groove and the supporting bar groove in a sliding and elastic mode, and used to support the pin of the workpiece to be vertical; A first limiting track is arranged on the bottom plate in a lifting mode through a first hydraulic member, and used to drive two groups of lifting blocks to be synchronously separated to open the locking unit.

[0015] As preferred, the immersion plating mechanism comprises an immersion plating tank arranged on the platform; The blanking mechanism comprises: An extension plate is arranged on the platform; A second limiting track is arranged on the extension plate in a lifting mode through a second hydraulic member, and used to drive two groups of lifting blocks to be synchronously separated to close the locking unit; A hanging plate is arranged on the extension plate in an inclined mode, and used to support the cross beam of the workpiece; Two groups of limiting bar holes are symmetrically arranged on the extension plate, and the pin of the workpiece slides along the inside of the limiting bar hole; A hanging hole is arranged on the hanging plate and used to avoid the descending action of the wedge-shaped clamping block; Two groups of wedge-shaped blocks are arranged on the hanging plate in a sliding and elastic mode, and used to block the cross beam of the workpiece from being lifted again along with the clamping jaw assembly.

[0016] The beneficial effects of the present application are: (1) The clamping mechanism and the rotating mechanism cooperate in the present application, on the one hand, a pure mechanical clamping mode is adopted, without electrical structure control, and the workpiece can be automatically clamped and released, the clamping mechanism will not contaminate the metal liquid, the service life is improved, and the workpiece can be continuously hot-dip plated; on the other hand, the metal liquid on the workpiece is quickly spun dry by centrifugal motion, the uneven distribution of the metal liquid on the workpiece is prevented to form burrs, the uniformity of the plating layer is improved, the surface quality of the plating layer is higher, and the hot-dip plating effect of the workpiece is improved; (2) The cover sealing assembly and the clamping jaw assembly cooperate in the present application, on the one hand, the workpiece is protected, the metal film on the liquid surface of the immersion plating tank is prevented from adhering to the pin of the workpiece, the uniformity of the plating layer of the pin of the workpiece is ensured, and the smoothness of the plating layer surface is improved; on the other hand, the workpiece is heat preserved, not only in the process of hot-dip plating, the temperature of the metal liquid around the two pins of the workpiece is stabilized, the hot-dip plating effect is improved, but also when the excess metal liquid is spun off, the temperature of the air around the pin of the workpiece is stabilized, and the forming effect of the plating layer is improved; (3) The turnover assembly and the arrangement assembly cooperate in the present application, on the one hand, the arranged workpieces can be blocked one by one and orderly fed, the stability of the workpiece feeding is improved, the workpieces can be fed at specified positions, the precision of the workpiece feeding is improved, and the clamping mechanism can accurately hoist the workpiece; on the other hand, the posture of the workpiece can be adjusted, the workpiece is turned over so that the pin is in a vertical state, the clamping mechanism can accurately clamp the crossbeam part and the flat joint part of the workpiece, the automation is high, and the continuous feeding effect is good.

[0017] In summary, the device has the advantages of good plating layer effect, high automation and continuous feeding, and is especially suitable for the technical field of hot-dip plating. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a structure schematic view of a workpiece.

[0020] Figure 2 It is a structure schematic view of a continuous hot-dip plating device.

[0021] Figure 3 It is a structure schematic view of a rotating mechanism.

[0022] Figure 4 It is a structure schematic view of a clamping mechanism.

[0023] Figure 5 is a structural diagram of the clamping jaw assembly.

[0024] Figure 6 is Figure 5 is a structural diagram of the clamping jaw assembly from the bottom angle.

[0025] Figure 7 is Figure 5 is a structural diagram of the clamping jaw assembly from the bottom angle.

[0026] Figure 8 is a structural diagram of the hanger.

[0027] Figure 9 is a structural diagram of the wedge-shaped clamping block.

[0028] Figure 10 is a structural diagram of the outer support assembly.

[0029] Figure 11 is a structural diagram of the hook plate.

[0030] Figure 12 is a transmission diagram of the locking unit when it is working.

[0031] Figure 13 is a transmission diagram of the locking unit when it is being released.

[0032] Figure 14 is a transmission diagram of the locking unit when it is being reset.

[0033] Figure 15 is a structural diagram of the cover assembly when it is fully opened.

[0034] Figure 16 is a structural diagram of the cover assembly when it is fully closed.

[0035] Figure 17 is a structural diagram of the cover assembly when it is opened to a specified angle.

[0036] Figure 18 is a structural diagram of the feeding mechanism.

[0037] Figure 19 is a structural diagram of the overturning assembly.

[0038] Figure 20 is a structural diagram of the arrangement assembly.

[0039] Figure 21 is Figure 20 is a partial enlarged view of position A in the cover assembly.

[0040] Figure 22 is a transmission diagram of the workpiece feeding.

[0041] Figure 23 is a structural diagram of the discharging mechanism. Detailed Implementation

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0043] Example 1 like Figures 1-23 As 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. 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. 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.

[0044] 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.

[0045] 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.

[0046] In detail, first, the workpieces are automatically arranged in sequence on the arranging assembly 41, the turning assembly 42 turns over one workpiece at the front end to make the two pins 73 of the workpiece turn to the vertical state, then the rotating column 21 drives one clamping mechanism 3 to move to a position above the arranging assembly 41 and stop, 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 clamping jaw assembly 31 clamps the beam part 71 of the workpiece 7, the outer support assembly 32 clamps the beam part 71 of the workpiece 7, the lifting unit 22 drives the clamping mechanism 3 to ascend 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 plating tank 51 and stop, the lifting unit 22 drives the clamping mechanism 3 to descend into the immersion plating tank 51, the cover assembly 33 is opened by a specified angle in the immersion plating tank 51, so that the metal liquid enters the cover assembly 33 to perform hot-dip plating on the lower end parts of the two pins 73 of the workpiece, then the lifting unit 22 drives the clamping mechanism 3 to ascend with the workpiece 7, and the clamping mechanism 7 is separated from the immersion plating tank 51, the cover assembly 33 is again fully closed to keep the workpiece warm, the hanger 312 drives the workpiece to rotate by the clamping jaw assembly 31 and the outer support assembly 32, and the workpiece is spun under the action of the centrifugal force to shake off the excess metal liquid at the lower end parts of the pins 73 of the workpiece, the cover assembly 33 is again opened by a specified angle, and the excess metal liquid drops back to flow into the immersion plating tank 51, and the workpiece is rapidly cooled again, then the rotating column 21 drives the clamping mechanism 3 to move to a position above the discharging mechanism 6 and stop, the cover assembly 33 is again fully opened, and the clamping mechanism 3 automatically releases the workpiece on the hanger 63, and the workpieces are neatly stacked in sequence along the inclined hanger 63.

[0047] Further, as shown in the drawings, the rotating mechanism 2 comprises: Figures 2-3 The rotating column 21 is rotationally arranged at the middle position of the platform 1, and is driven by a driving motor of the prior art to rotationally move by a specified angle intermittently, so that the clamping mechanism 3 moves between the three stations of the feeding mechanism 4, the immersion plating mechanism 5 and the discharging mechanism 6. The lifting unit 22 is arranged on the rotating column 21 in the circumferential direction, and adopts the linear driving mode of a screw rod of the prior art, and comprises a screw rod 221 vertically arranged on the rotating column 21 and a screw block 222 threadedly arranged on the screw rod 221, and the screw rod 221 is driven by a stepping motor 223 to rotationally move by a specified angle in the forward and reverse directions. In this embodiment, the rotating mechanism 2 is arranged to automatically drive the clamping mechanism 3 to hoist and transfer the workpiece 7 between the stations, and to drive the clamping mechanism 3 to ascend and descend, thereby facilitating the hoisting and transferring of the workpiece.

[0048]

[0049] ​In detail, the rotating column 21 drives the clamping mechanism 3 to rotate with the workpiece 7 by a specified angle, so that the clamping mechanism 3 stops at different stations in turn, and the stepping motor 223 of the lifting unit 22 drives the screw rod 221 to rotate, and the screw rod 221 drives the clamping mechanism 3 to lift through the threaded block 222.

[0050] Further, as shown in the figure, Figures 4-9 the clamping jaw assembly 31 comprises: a mounting frame 311 arranged on the threaded block 222 and slidingly arranged on the rotating column 21; a hanger 312 rotationally arranged inside the mounting frame 311, and a first motor 318 arranged on the mounting frame 311 for driving the hanger 312 to rotate; a first mounting plate 313 arranged on the hanger 312; a wedge-shaped clamping block 314 fixedly arranged at the bottom of the first mounting plate 313; a movable clamping block 315 slidingly arranged at the bottom of the first mounting plate 313 through a first sliding hole 316, and a first elastic member 317 arranged between the movable clamping block 315 and one end of the first sliding hole 316.

[0051] In this embodiment, the clamping jaw assembly 31 and the lifting unit 22 cooperate to automatically clamp the beam part 71 of the workpiece 7, so as to avoid horizontal movement of the workpiece 7 along the length direction of the flat joint part 72 of the workpiece 7, and the clamping effect is good.

[0052] In detail, the rotating column 21 drives the clamping mechanism 3 to move to a position above the arrangement assembly 41 and then stop, the lifting unit 22 drives the clamping jaw assembly 31 to descend, the hanger 312 descends with the wedge-shaped clamping block 314, the inclined surface of the wedge-shaped clamping block 314 drives the beam part 71 of the workpiece to move forward, until the workpiece is separated from the inclined surface of the wedge-shaped clamping block 314, and the movable clamping block 315 cooperates with the wedge-shaped clamping block 314 under the driving of the first elastic member 317 to clamp and fix the beam part 71 of the workpiece.

[0053] Further, as shown in the figure, Figures 7-14 the outer supporting assembly 32 comprises an outer clamping unit 321 arranged on the hanger 312 and a locking unit 322 arranged on the hanger 312 and used for controlling the outer clamping unit 321, and the outer clamping unit 321 comprises: a second mounting plate 3211 arranged on the hanger 312; a hanger block 3212, and two groups of the hanger blocks 3212 are symmetrically slidingly arranged at the bottom of the second mounting plate 3211 through a second sliding hole 3213; A hollow tube 3214 is horizontally arranged on the hanging block 3212; A sleeve rod 3215 is slidingly matched arranged inside the hollow tube 3214; An arc-shaped clamping block 3216 is arranged at one end of the sleeve rod 3215 and is matched with the flat joint 72 of the workpiece 7, and a second elastic member 3217 is arranged between the arc-shaped clamping block 3216 and the end of the hollow tube 3214.

[0054] It should be noted that after the workpiece is clamped by the clamping jaw assembly 31 and the outer supporting assembly 32 and the hot-dip plating work on the needle 73 of the workpiece is completed, the first motor 318 drives the hanging bracket 312 to rotate, so that the hanging bracket 312 rotates with the workpiece through the clamping jaw assembly 31 and the outer supporting assembly 32, and the excess metal liquid on the needle 73 of the workpiece is thrown off under the action of centrifugal force.

[0055] In the embodiment, the outer supporting assembly 32 and the lifting unit 22 cooperate to automatically support and clamp the two flat joints 72 of the workpiece 7, so that the workpiece 7 is prevented from moving horizontally along the length direction of the beam part 71 of the workpiece 7, and the clamping effect is good in cooperation with the clamping jaw assembly 31.

[0056] In detail, after the rotating column 21 drives the clamping mechanism 3 to move to a position above the arrangement assembly 41 and stops operating, the lifting unit 22 drives the outer supporting assembly 32 to descend, after the clamping jaw assembly 31 clamps the beam part 71 of the workpiece 7, the first hydraulic member drives the first limiting track 429 to ascend, the first limiting track 429 drives the two hanging blocks 3212 to move apart, the hanging block 3212 drives the arc-shaped clamping block 3216 to support and clamp the two flat joints 72 of the workpiece 7 through the hollow tube 3214, the sleeve rod 3215 and the second elastic member 3217, and the position of the two arc-shaped clamping blocks 3216 is fixed under the action of the locking unit 322, so that the two flat joints 72 of the workpiece 7 are clamped and fixed.

[0057] Further, as shown in Figures 8-14 the locking unit 322 includes: A lock channel 3221 is symmetrically arranged on the inner wall of the second sliding hole 3213; A hook plate 3222 is symmetrically hinged arranged on the two side walls of the hanging block 3212 and is located inside the lock channel 3221; A hook claw 3223 is arranged on one side of the bottom of the hook plate 3222, and a counterweight is arranged in the hook claw 3223; A hook groove 3224 is arranged at the bottom of the lock channel 3221 and cooperates with the hook claw 3223; The lifting part 3225 is arranged at one end of the locking groove 3221 and connected with the hook groove 3224; The limiting pin 3226 is slidably arranged at one side wall of the hook plate 3222 through the insertion hole 3227, a third elastic member 3228 is arranged between one end of the limiting pin 3226 and one end of the insertion hole 3227, and the other end of the limiting pin 3226 abuts against the side wall of the locking groove 3221; The limiting groove 3229 is arranged on the side wall of the locking groove 3221 and located at one side of the lifting part 3225, when the hook plate 3222 is driven to be in the horizontal state after the hook claw 3223 passes the position of the lifting part 3225, the limiting pin 3226 is popped into the limiting groove 3229, and the hook plate 3222 is kept in the horizontal state; The sliding-out part 32291 is arranged at one end of the limiting groove 3229 and used for driving the limiting pin 3226 to slide out of the limiting groove 3229; The reset spring 32292 is arranged between the hanging block 3212 and the second sliding hole 3213 and used for driving the hanging block 3212 to move horizontally with the hook plate 3222.

[0058] It is worth mentioning that the rotating shaft position on the hook plate 3222 is far away from the hook claw 3223, and there is a counterweight in the hook claw 3223, therefore, when the hook plate 3222 moves in the locking groove 3221, the hook plate 3222 is inclined to one side of the hook claw 3223, the hook claw 3223 falls to the bottom of the locking groove 3221 under the action of gravity, 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, so that the hook claw 3223 is clamped in the hook groove 3224.

[0059] In the embodiment, the locking unit 322 and the outer supporting assembly 32 are cooperated to automatically lock and open the outer supporting assembly 32, so that the effect of automatically clamping and releasing the workpiece is realized, and the pure mechanical clamping mode does not contaminate the metal liquid.

[0060] In detail, when the outer support assembly 32 needs to be locked, after the clamping jaw assembly 31 clamps the beam part 71 of the workpiece 7, the first hydraulic part drives the first limiting track 429 to rise, drives the hanging block 3212 with the arc-shaped clamping block 3216 to clamp the two flat connecting parts 72 of the workpiece 7 from both sides, at the same time, the hook plate 3222 on both sides of the hanging block 3212 also moves in the lock channel 3221, and the hook claw 3223 is placed at the bottom of the lock channel 3221 under the action of gravity. When the two arc-shaped clamping blocks 3216 clamp the two flat connecting parts 72 of the workpiece 7 from both sides, the first hydraulic part continues to drive the first limiting track 429 to rise, the hollow tube 3214 end compresses the second elastic part 3217, so that 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, then the first hydraulic part drives the first limiting track 429 to descend and reset, the reset spring 32292 drives the two hanging blocks 3212 to approach each other, the hook plate 3222 moves back in the lock channel 3221, and the hook claw 3223 is clamped in the hook groove 3224 during the back movement, preventing the two hanging blocks 3212 from approaching each other and resetting, the second elastic part 3217 is elongated to recover to the specified length, and the second elastic part 3217 still has compression elastic force to drive the two arc-shaped clamping blocks 3216 to clamp the two flat connecting parts 72 of the workpiece 7 from both sides, so as to lock 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 the position above the feeding mechanism 6 and then stops, the lifting unit 22 drives the outer support assembly 32 to descend to the specified position, the second hydraulic component drives the second limiting track 62 to rise, so that the second limiting track 62 drives the two hanging blocks 3212 to move away from each other again, the second elastic component 3217 is compressed again, so that the hook plate 3222 moves to the position of the lifting part 3225, the hook claw 3223 rises along the lifting part 3225, so that the hook plate 3222 gradually rotates to the horizontal state, when the hook plate 3222 rotates to the horizontal state, the limiting pin 3226 slides out of the insertion hole 3227 under the elastic force of the third elastic component 3228, the end of the limiting pin 3226 is inserted into the limiting groove 3229, preventing the hook plate 3222 from rotating again, then, the second hydraulic component drives the second limiting track 62 to descend to reset, the reset spring 32292 drives the two hanging blocks 3212 to move close to each other for resetting, the limiting pin 3226 on the hook plate 3222 moves horizontally along the limiting groove 3229, so that the hook plate 3222 remains in the horizontal state, the hook claw 3223 does not fall into the hook groove 3224 during the return movement, and the hanging block 3212 can be reset smoothly, when the hanging block 3212 returns to the position of the sliding-out part 32291, the sliding-out part 32291 drives the limiting pin 3226 to disengage from the limiting groove 3229, so that the limiting pin 3226 enters the insertion hole 3227 again, and the end thereof abuts against the inner wall of the lock channel groove 3221, the hook claw 3223 again rests on the bottom of the lock channel groove 3221 under the action of gravity, and the hook plate 3222 again inclines for resetting, facilitating reuse next time, the two hanging blocks 3212 move close to each other for resetting, thereby bringing the two arc-shaped clamping blocks 3216 close to each other for resetting, and releasing the workpiece.

[0061] Embodiment Two As shown in Figures 3-4 and Figures 15-17 , wherein the same or corresponding parts as in Embodiment One are denoted by corresponding reference numerals, and for the sake of brevity, only the differences from Embodiment One will be described hereinafter. The difference between this embodiment and Embodiment One is that: Further, as shown in Figures 3-4 and Figures 15-17 , the cover assembly 33 comprises: a cover shell 331, two groups of the cover shell 331 are symmetrically hinged to the bottom of the mounting frame 311 through shafts, and the two groups of the cover shell 331 are in abutment and closed; a driven gear 332, the driven gear 332 is arranged at one end of the shaft, and is used to drive the two groups of the cover shell 331 to open and close; a driving gear 333, two groups of the driving gear 333 are symmetrically arranged on the mounting frame 311, and are used to drive the driven gear 332, and a second motor 336 for driving the driving gear 333 is arranged on the mounting frame 311; Hot nitrogen spray head 334, several groups of the hot nitrogen spray head 334 are arranged on the inner wall of the cover 331 respectively, the hot nitrogen spray head 334 is connected with the existing external hot nitrogen source through a hose, and is provided with a solenoid valve; Cold nitrogen spray head 335, several groups of the cold nitrogen spray head 335 are arranged on the mounting frame 311, the cold nitrogen spray head 335 is connected with the existing external cold nitrogen source through a hose, and is also provided with a solenoid valve; The immersion plating mechanism 5 comprises an immersion plating tank 51 arranged on the platform 1.

[0062] It should be noted that when clamping or releasing the workpiece, the two covers 331 are completely opened (as shown in Figure 4 and Figure 15 ), so as to avoid interference between the two covers 331 and the workpiece.

[0063] It should be further noted that when hot dipping, the liquid surface of the metal liquid in the immersion plating tank 51 will have a metal film, the pins of the workpiece directly pass through the liquid surface into the immersion plating tank 51, and the metal film will adhere to the pins of the workpiece, affecting the plating effect of the pins of the workpiece, therefore, when the pins of the workpiece enter the immersion plating tank 51, the two covers 331 are completely butted and closed (as shown in Figure 16 ), and after descending into the immersion plating tank 51, the two covers 331 are opened by a certain angle (as shown in Figure 17 ), so that the metal liquid enters the cover sealing assembly 33 to perform hot dipping on the lower end portions of the two pins 73 of the workpiece, preventing the metal film from adhering to the pins of the workpiece, and at the same time, the two covers 331 are slightly opened by a certain angle, the hot nitrogen spray head 334 in the cover 331 blows hot air again, which can stabilize the temperature of the metal liquid around the two pins 73 of the workpiece, improving the hot dipping effect.

[0064] It is worth mentioning that when the excess metal liquid is shaken off, the pins of the workpiece are lifted after plating and separated from the immersion plating tank 51, the two covers 331 remain slightly opened by a certain angle, the first motor 318 drives the hanger 312 to rotate, and under the action of centrifugal force, the excess metal liquid on the pins 73 of the workpiece is shaken off, at the same time, the hot nitrogen spray head 334 in the cover 331 blows hot air to stabilize the temperature of the air around the pins 73 of the workpiece, and at the same time, the airflow blown by the hot nitrogen spray head 334 blows the metal liquid falling on the inner side wall of the cover 331, so that the excess metal liquid drops back into the immersion plating tank 51, preventing the metal liquid from adhering to the inner side wall of the cover 331; then, the nitrogen spray head 334 on the mounting frame 311 blows cold air to the workpiece, facilitating rapid cooling and forming of the plating layer.

[0065] In the embodiment, the cover assembly 33 and the clamping jaw assembly 31 are matched to protect the workpiece, prevent the metal film on the liquid surface of the immersion plating tank 51 from adhering to the pin of the workpiece, ensure the uniformity of the plating layer of the pin of the workpiece, and improve the smoothness of the plating layer surface. On the other hand, the cover assembly 33 and the clamping jaw assembly 31 are matched to keep the workpiece warm, ensure the stability of the temperature of the metal liquid around the two pins 73 of the workpiece during the hot-dip plating process, improve the hot-dip plating effect, and ensure the stability of the temperature of the air around the pin 73 of the workpiece when the excess metal liquid is spun off, thereby improving the forming effect of the plating layer.

[0066] In detail, when the two covers 331 need to be opened or closed, the second motor 336 drives the passive gear 332 to rotate synchronously with the two covers 331 through the driving gear 333, so as to open or close the two covers 331. When hot gas needs to be introduced into the cover 331, the existing external hot nitrogen source is sprayed into the cover 331 through the electromagnetic valve control hot nitrogen nozzle 334. When cold gas needs to be introduced into the cover 331, the existing external cold nitrogen source is sprayed into the cover 331 through the electromagnetic valve control cold nitrogen nozzle 335.

[0067] Embodiment Three As shown in Figure 2 and Figures 18-22 , wherein the same or corresponding parts as in Embodiment One are denoted by corresponding reference numerals in Embodiment One, and for the sake of simplicity, only the differences from Embodiment One will be described below. The difference between this embodiment and Embodiment One is that: Further, as shown in Figure 2 and Figures 18-22 , the feeding mechanism 4 comprises an arrangement assembly 41 arranged on the platform 1 and used for uniformly arranging the workpieces 7, and a turnover assembly 42 arranged on the arrangement assembly 41 and used for sequentially adjusting the positions of the workpieces 7; The arrangement assembly 41 comprises: a bottom plate 411 arranged on the platform 1; a hanging rack 412 arranged on the bottom plate 411 through a vertical plate 413, the beam part 71 of the workpiece 7 being hung on the hanging rack 412, and the workpieces 7 being automatically arranged by being sequentially and obliquely hung on the hanging rack 412; a support strip groove 414, two groups of the support strip grooves 414 being symmetrically arranged on the bottom plate 411 and used for supporting the pins 73 of the workpieces 7 to keep the pins 73 in an oblique state; a push plate 415 slidingly arranged on the bottom plate 411 and used for abutting against the beam part 71 of the workpiece 7, and a fourth elastic member 416 being arranged 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 is disposed on push plate 415 and is used to abut against the connection between flat part 72 and pin 73 of workpiece 7.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] Furthermore, such as Figures 18-22 As shown, 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 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. The lifting block 423 is equipped with a third motor 4231 for driving the roller 425 to rotate; 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; 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. A wedge-shaped spacer 428 is horizontally slidably and elastically arranged at the intersection of the accommodating groove 427 and the supporting groove 414, and is used to support the pin 73 of the workpiece 7 in a vertical state; The bottom of the accommodating groove 427 is provided with an accommodating cavity 4271, the upper end of the accommodating cavity 4271 is in an open state, the wedge-shaped spacer 428 is slidably arranged in the accommodating cavity 4271 through a side groove 4272, a sixth elastic member 4273 is arranged between the wedge-shaped spacer 428 and the inner wall of the accommodating cavity 4271, the width of the accommodating cavity 4271 and the wedge-shaped spacer 428 is smaller than the thickness of the pin 73 of the workpiece 7, that is, the lower end of the pin 73 of the workpiece 7 cannot enter the accommodating cavity 4271, so as to ensure that the lower end of the pin 73 of the workpiece 7 is horizontally slid into the accommodating groove 427; A first limiting rail 429 is arranged on the bottom plate 411 through a first hydraulic member, and is used to drive two groups of lifting blocks 3212 to be synchronously separated to open the locking unit 322.

[0072] In this embodiment, the overturning assembly 42 and the arranging assembly 41 are cooperated, on the one hand, the arranged workpieces 7 can be prevented from being sequentially and orderly fed, the stability of the workpiece 7 feeding is improved, the workpieces 7 can be fed at the specified positions, the precision of the workpiece 7 feeding is increased, and the clamping mechanism 3 can accurately lift the workpieces; on the other hand, the posture of the workpiece 7 can be adjusted, the workpiece 7 is overturned to make the pin in a vertical state, the clamping mechanism 3 can accurately clamp the crossbeam 71 and the flat joint 72 of the workpiece 7, the automation is high, and the continuous feeding effect is good.

[0073] In detail, the workpieces 7 are arranged on the hanging frame 412 under the pushing force of the pushing plate 415 and the pushing frame 418, the front end workpiece 7 is blocked by the rollers 425, so that the workpieces 7 are stopped on the hanging frame 412, when the workpieces 7 need to be fed, the third motor 4231 drives the two rollers 425 to rotate, the rollers 425 are in contact with the cross beam part 71 of the front end workpiece 7 through the friction ring 426, the workpiece 7 is driven to rotate upward around the cross beam part 71, so that the needle feet of the workpiece 7 drive the wedge-shaped pad 428 to slide into the sliding cavity 4271 in the support strip groove 414, until the needle feet of the workpiece 7 rotate upward and are separated from the wedge-shaped pad 428, then the wedge-shaped pad 428 slides out of the sliding cavity 4271 under the elastic force of the sixth elastic element 4273 to reset, at this time, the third motor 4231 stops driving the two rollers 425, the needle feet of the workpiece 7 stand on the wedge-shaped pad 428 due to the gravity, that is, the lower end of the needle feet of the workpiece 7 falls on the upper surface of the wedge-shaped pad 428, so that the needle feet of the workpiece 7 remain in the vertical state, and the posture adjustment of the workpiece 7 is completed, then the lifting unit 22 drives the clamping mechanism 3 to descend, the wedge-shaped clamping block 314 of the clamping jaw assembly 31 gradually inserts into the gap between the front end workpiece and the rear workpiece, in the process of the wedge-shaped clamping block 314 descending along the avoiding strip hole 417, the inclined surface of the wedge-shaped clamping block 314 drives the front end workpiece to move forward, the cross beam part 71 of the workpiece 7 presses the roller 425 downward, so that the lifting block 423 compresses the fifth elastic element 424, at the same time, the lower end of the needle feet of the workpiece 7 moves horizontally from the wedge-shaped pad 428 to the specified position in the sliding strip groove 427, at this time, the cross beam part 71 of the workpiece 7 is separated from the inclined surface of the wedge-shaped clamping block 314, the movable clamping block 315 and the wedge-shaped clamping block 314 clamp the cross beam part 71 of the workpiece 7, then the first hydraulic element drives the first limiting track 429 to rise, the first limiting track 429 drives the two hanging blocks 3212 with the arc-shaped clamping block 3216 to clamp the two flat joints 72 of the workpiece 7 on both sides, at the same time, the locking unit 322 locks the outer supporting assembly 32 to clamp and fix the workpiece 7, the first hydraulic element drives the first limiting track 429 to descend to reset, so as to complete the feeding work of the front end workpiece, the lifting unit 22 drives the clamping mechanism 3 to rise with the front end workpiece, the wedge-shaped clamping block 314 rises, the roller 425 rises to reset under the elastic force of the fifth elastic element 424, the rear arranged workpieces move forward as a whole under the pushing force of the pushing plate 415 and the pushing frame 418, and are again arranged at the roller 425, so as to facilitate the feeding again, so as to achieve the effect of automatic and continuous feeding.

[0074] Embodiment Four As shown in Figures 2-3 and Figure 23 , wherein the same or corresponding parts as in Embodiment One are denoted by the same reference numerals as in Embodiment One, for the sake of simplicity, only the difference from Embodiment One will be described below. The difference between this embodiment four and Embodiment One is that: Further, as shown in Figures 2-3 andFigure 23 As shown, the unloading mechanism 6 comprises: an extension plate 61 arranged on the platform 1; a second limiting rail 62 arranged on the extension plate 61 by a second hydraulic lifting device, and used for driving two groups of hanging blocks 3212 to be synchronously separated to close the locking unit 322; a hanging plate 63 arranged on the extension plate 61 in an inclined manner, and used for supporting the beam part 71 of the workpiece 7; two groups of limiting strip holes 64 symmetrically arranged on the extension plate 61, and along which the pin 73 of the workpiece 7 slides; a hanging hole 65 arranged on the hanging plate 63, and used for avoiding the descending action of the wedge-shaped clamping block 314; two groups of wedge-shaped blocks 66 arranged on the hanging plate 63 in a sliding and elastic manner, and used for blocking the beam part 71 of the workpiece 7 from being lifted again along with the clamping jaw assembly 31.

[0075] In this embodiment, the unloading mechanism 6 can automatically unload the workpieces, and the unloaded workpieces are arranged in an orderly manner.

[0076] In detail, the rotating column 21 drives the clamping mechanism 3 to move to the position above the discharging mechanism 6 and stop, the cover sealing assembly 33 is opened again, the lifting unit 22 drives the clamping mechanism 3 to descend, in the process of descending, the crossbeam part 71 of the workpiece 7 presses the inclined surface of the wedge-shaped block 66, forcing the wedge-shaped block 66 to slide horizontally, the crossbeam part 71 of the workpiece 7 continues to descend after being separated from the inclined surface of the wedge-shaped block 66, until it is lowered to the hanging plate 63, the needle pin 73 falls into the limiting strip hole 64, then the second hydraulic part drives the second limiting track 62 to rise, so that the second limiting track 62 drives the two hanging blocks 3212 to move apart again, so that the hook plate 3222 moves to the lifting part 3225 position, the lifting part 3225 drives the hook plate 3222 to gradually rotate to the horizontal state, when the hook plate 3222 rotates to the horizontal state, the limiting pin 3226 end inserts into the limiting groove 3229, preventing the hook plate 3222 from rotating again, then the second hydraulic part drives the second limiting track 62 to descend and reset, the reset spring 32292 drives the two hanging blocks 3212 to move close to each other for resetting, the limiting pin 3226 on the hook plate 3222 moves horizontally along the limiting groove 3229, so that the hook plate 3222 remains in the horizontal state, then the sliding-out part 32291 drives the limiting pin 3226 to separate from the limiting groove 3229, so that the limiting pin 3226 enters the insertion hole 3227 again, the hook claw 3223 is placed on the bottom of the locking groove 3221 again under the action of gravity, the hook plate 3222 is reset again to be inclined, facilitating reuse next time, the two hanging blocks 3212 move close to each other for resetting, thereby bringing the two arc-shaped clamping blocks 3216 close to each other for resetting, releasing the flat joint part 72 of the workpiece, then the lifting unit 22 drives the clamping mechanism 3 to ascend and reset, the movable clamping block 315 and the wedge-shaped clamping block 314 of the clamping jaw assembly 31 still clamp the crossbeam part 71 of the workpiece 7 and ascend with the workpiece 7, but the wedge-shaped block 66 blocks the crossbeam part 71 of the workpiece 7 from ascending with the clamping jaw assembly 31, thereby cutting off the workpiece 7 on the hanging plate 63, the needle pin 73 is in the limiting strip hole 64, due to the inclined arrangement of the hanging plate 63, the workpiece 7 cut off on the hanging plate 63 slides downward due to gravity, and is automatically and continuously discharged and arranged in order.

[0077] Working process: Firstly, the workpieces are automatically arranged on the arranging assembly 41 in sequence, the turning assembly 42 turns over one workpiece at the front end to make two needle feet 73 of the workpiece turn to the vertical state, then the rotating column 21 drives one clamping mechanism 3 to move to the position above the arranging assembly 41 and stop, the cover sealing assembly 33 of the clamping mechanism 3 is completely opened, the lifting unit 22 drives the clamping mechanism 3 to descend, so that the clamping jaw assembly 31 clamps the beam part 71 of the workpiece 7, the outer supporting assembly 32 clamps the beam part 71 of the workpiece 7, the lifting unit 22 drives the clamping mechanism 3 to ascend with the workpiece 7, the cover sealing assembly 33 is completely closed to preheat the workpiece, then the rotating column 21 drives the clamping mechanism 3 to move to the position above the immersion tank 51 with the workpiece 7 and stop, the lifting unit 22 drives the clamping mechanism 3 to descend into the immersion tank 51, the cover sealing assembly 33 is opened by a specified angle in the immersion tank 51, so that the metal liquid enters the cover sealing assembly 33 to perform hot-dip plating work on the lower end part of the two needle feet 73 of the workpiece, then the lifting unit 22 drives the clamping mechanism 3 to ascend with the workpiece 7 to separate from the immersion tank 51, the cover sealing assembly 33 is again completely closed to keep the workpiece warm, the hanger 312 drives the workpiece to rotate by the clamping jaw assembly 31 and the outer supporting assembly 32, and the needle feet 73 of the workpiece are spun under the action of the centrifugal force to shake off the excess metal liquid at the lower end part of the needle feet 73, the cover sealing assembly 33 is again opened by a specified angle, and the excess metal liquid drops back to flow into the immersion tank 51, and the workpiece is rapidly cooled again, then the rotating column 21 drives the clamping mechanism 3 to move to the position above the discharging mechanism 6 with the workpiece 7 and stop, the cover sealing assembly 33 is again completely opened, and the clamping mechanism 3 automatically releases the workpiece on the hanger 63, and the workpieces are sequentially and neatly stacked along the inclined hanger 63.

[0078] In the description of the present application, it should be understood that the terms "front and back", "left and right" and the like indicate the positional or locational relationship based on the positional or locational relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0079] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0080] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any changes or replacements easily thought of by those skilled in the art under the technical hints of the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A continuous hot-dip plating apparatus characterized by comprising: The rotating mechanism (2) is arranged in the middle of the platform (1), the clamping mechanism (3) is arranged on the rotating mechanism (2), and the feeding mechanism (4), the immersion plating mechanism (5) and the discharging mechanism (6) are sequentially arranged on the platform (1) in the circumferential direction; The clamping mechanism (3) is divided into several groups and is arranged on the rotating mechanism (2) in a lifting mode, and comprises a jaw assembly (31) arranged on the rotating mechanism (2) and used for clamping a cross beam part (71) of a workpiece (7), an outer support assembly (32) arranged on the jaw assembly (31) and used for clamping two flat connecting parts (72) of the workpiece (7), and a cover assembly (33) arranged on the jaw assembly (31) and used for covering the workpiece (7).

2. A continuous hot dip plating apparatus according to claim 1, wherein The rotating mechanism (2) comprises: A rotating column (21) arranged in a rotating mode in the middle of the platform (1); A plurality of lifting units (22) arranged on the rotating column (21) in the circumferential direction.

3. A continuous hot dip plating apparatus according to claim 2, wherein The jaw assembly (31) comprises: A mounting frame (311) arranged on the lifting unit (22); A hanger (312) arranged in a rotating mode in the mounting frame (311); A first mounting plate (313) arranged on the hanger (312); A wedge-shaped clamping block (314) fixedly arranged at the bottom of the first mounting plate (313); A movable clamping block (315) arranged in a sliding mode at the bottom of the first mounting plate (313) through a first sliding hole (316), and a first elastic element (317) arranged between the movable clamping block (315) and one end of the first sliding hole (316).

4. A continuous hot dip plating apparatus according to claim 3, wherein The outer support assembly (32) comprises an outer clamping unit (321) arranged on the hanger (312) and a locking unit (322) arranged on the hanger (312) and used for controlling the outer clamping unit (321), and the outer clamping unit (321) comprises: A second mounting plate (3211) arranged on the hanger (312); Two groups of hanger blocks (3212) symmetrically arranged in a sliding mode at the bottom of the second mounting plate (3211) through a second sliding hole (3213); A hollow pipe (3214) arranged in a horizontal mode on the hanger block (3212); A sleeve rod (3215) arranged in a sliding mode in the hollow pipe (3214); An arc-shaped clamping block (3216) arranged at one end of the sleeve rod (3215) and matched with the flat connecting part (72) of the workpiece (7), and a second elastic element (3217) arranged between the arc-shaped clamping block (3216) and the end of the hollow pipe (3214).

5. A continuous hot dip plating apparatus according to claim 4, wherein The locking unit (322) comprises: Locking groove (3221), the locking groove (3221) is symmetrically opened on the inner wall of the second sliding hole (3213); Hook plate (3222), the hook plate (3222) is symmetrically hinged on the two side walls of the hanging block (3212) through the pivot, and is located in the locking groove (3221); Hook claw (3223), the hook claw (3223) is arranged on the bottom of one side of the hook plate (3222), and a counterweight is arranged in the hook claw (3223); Hook groove (3224), the hook groove (3224) is arranged on the bottom of the locking groove (3221), and is matched with the hook claw (3223); Lifting part (3225), the lifting part (3225) is arranged on one end of the locking groove (3221), and is connected with the hook groove (3224); Limiting pin (3226), the limiting pin (3226) is slidably arranged on one side wall of the hook plate (3222) through the insertion hole (3227), a third elastic element (3228) is arranged between one end of the limiting pin (3226) and one end of the insertion hole (3227), and the other end of the limiting pin (3226) abuts against the side wall of the locking groove (3221); Limiting groove (3229), the limiting groove (3229) is arranged on the side wall of the locking groove (3221) and located on one side of the lifting part (3225); Sliding-out part (32291), the sliding-out part (32291) is arranged on one end of the limiting groove (3229), and is used for driving the limiting pin (3226) to slide out of the limiting groove (3229); Reset spring (32292), two groups of reset springs (32292) are arranged between the two ends of the hanging block (3212) and the second sliding hole (3213) respectively, and are used for driving the hanging block (3212) to move horizontally with the hook plate (3222) to reset.

6. The continuous hot-dip plating apparatus according to claim 3, wherein The cover assembly (33) comprises: Cover shell (331), two groups of cover shells (331) are symmetrically hinged on the bottom of the mounting frame (311) through shaft rods, and the two groups of cover shells (331) are abutted and closed; Passive gear (332), the passive gear (332) is arranged on one end of the shaft rod, and is used for driving the two groups of cover shells (331) to open and close; Driving gear (333), two groups of driving gears (333) are symmetrically arranged on the mounting frame (311), and are used for driving the passive gear (332).

7. The continuous hot-dip plating apparatus according to claim 1, wherein The feeding mechanism (4) comprises an arrangement assembly (41) arranged on the platform (1) and used for uniformly arranging workpieces (7), and a turnover assembly (42) arranged on the arrangement assembly (41) and used for sequentially adjusting the positions of the workpieces (7).

8. A continuous hot dip plating apparatus according to claim 7, wherein The arrangement assembly (41) comprises: Bottom plate (411), the bottom plate (411) is arranged on the platform (1); Hanging rack (412), the hanging rack (412) is arranged on the bottom plate (411) through a vertical plate (413), the cross beam part (71) of the workpiece (7) is hung on the hanging rack (412), and the workpiece (7) is arranged automatically in sequence by being inclinedly hung on the hanging rack (412); Supporting strip grooves (414) are symmetrically arranged on the bottom plate (411) and used for supporting the pin (73) of the workpiece (7) in an inclined state; A push plate (415) is slidingly arranged on the bottom plate (411) and used for abutting against the beam (71) of the workpiece (7), and a fourth elastic member (416) is arranged between the push plate (415) and the vertical plate (413); An avoiding strip hole (417) is arranged on the hanger (412), and the upper end of the push plate (415) is slidingly matched with the inner wall of the avoiding strip hole (417); A push frame (418) is arranged on the push plate (415) and used for abutting against the joint of the flat joint (72) and the pin (73) of the workpiece (7).

9. A continuous hot dip plating apparatus according to claim 8, wherein The turnover assembly (42) comprises: A U-shaped frame (421) is arranged on the hanger (412); Two groups of lifting strip holes (422) are symmetrically arranged on the U-shaped frame (421); Two groups of lifting blocks (423) are slidingly arranged on the lifting strip holes (422), respectively, and a fifth elastic member (424) is arranged between the lifting block (423) and the end of the lifting strip hole (422); Two groups of rollers (425) are rotatably arranged on the lifting block (423) through rotating shafts, respectively, and used for stopping the beam (71) of the workpiece (7), and the hanger (412) is provided with an avoiding through hole for lifting the roller (425); A friction ring (426) is sleeved on the roller (425) and used for adjusting the pin (73) of the workpiece (7) to be in a vertical state; A containing strip groove (427) is arranged on the bottom plate (411) and opposite to the supporting strip groove (414) and used for supporting the pin (73) of the workpiece (7) in a vertical state; A wedge-shaped pad (428) is slidingly and elastically arranged at the joint of the containing strip groove (427) and the supporting strip groove (414) and used for supporting the pin (73) of the workpiece (7) in a vertical state; A first limiting track (429) is arranged on the bottom plate (411) by a first hydraulic member.

10. The continuous hot-dip plating apparatus according to claim 1, wherein The immersion plating mechanism (5) comprises an immersion plating tank (51) arranged on the platform (1); The blanking mechanism (6) comprises: An extension plate (61) is arranged on the platform (1); A second limiting track (62) is arranged on the extension plate (61) by a second hydraulic member; A hanging plate (63) is obliquely arranged on the extension plate (61) and used for supporting the beam (71) of the workpiece (7). Limiting strip holes (64), two groups of the limiting strip holes (64) are symmetrically arranged on the extension plate (61), and the pin (73) of the workpiece (7) slides along the inside of the limiting strip hole (64); Hanging holes (65), the hanging holes (65) are arranged on the hanging plate (63); Wedge-shaped stop blocks (66), two groups of the wedge-shaped stop blocks (66) are slidingly and elastically arranged on the hanging plate (63), and are used to block the cross beam part (71) of the workpiece (7) from rising again with the jaw assembly (31).

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