Hanging and conveying device and method for hanging stainless steel fittings

Abstract

The application discloses a suspension conveying device and method for hanging and plating stainless steel fittings, and belongs to the technical field of suspension conveying, which comprises a stirring mechanism installed on a suspension chain conveyor, and a clamping mechanism is installed on the stirring mechanism, wherein the clamping mechanism comprises a driving assembly and a positioning assembly, the adjusting assembly comprises a driving box, a hollow disc is fixedly installed in the driving box and connected with the positioning mechanism through a first connecting pipe, a hollow pipe is rotatably installed on the hollow disc, a part of the hollow pipe in the hollow disc is provided with an impeller, a second connecting pipe is fixedly installed on the hollow disc and rotatably connected with the hollow pipe, a fixed disc is fixedly installed on the hollow pipe and provided with a contact assembly at the bottom, the contact assembly can dynamically adjust the contact position according to the concave-convex distribution on the surface of the stainless steel fitting under the driving of liquid, when the fitting has a convex part, the contact assembly can move away to reduce the current density, and when the fitting has a concave part, the contact assembly can move close to increase the current density, thereby solving the problem that the current distribution is not suitable for the concave-convex parts of the stainless steel fitting.

Description

Technical Field

[0001] This invention belongs to the field of suspended conveying technology, and particularly relates to a suspended conveying device and method for plating stainless steel parts. Background Technology

[0002] Stainless steel fittings rack plating is a surface treatment process that deposits a metal coating on the surface of stainless steel through electrochemical principles to improve its corrosion resistance, wear resistance and aesthetics. The suspension conveyor device, as the core component of the rack plating production line, suspends the workpiece to be plated on the conveyor chain through a clamping mechanism, realizing the continuous and automated transfer of stainless steel fittings in the electroplating solution. In actual production, stainless steel fittings often have complex geometry and a large number of irregular concave and convex structures on their surface. When using traditional hanging conveyor devices for plating, the clamping position and contact method are fixed, making it difficult to dynamically adjust according to the surface characteristics of the workpiece, resulting in uneven current distribution.

[0003] Specifically, existing rack plating conveyor devices typically use a fixed clamping method, with the contact end maintaining a constant distance from the surface of the stainless steel fittings. When there are protruding parts on the surface of the workpiece to be plated, these parts will be subjected to excessively high current density due to their close proximity to the anode, resulting in a plating thickness exceeding the design standard and causing defects such as surface roughness and uneven color. For recessed parts, due to the excessive distance from the anode, the current density cannot meet the deposition requirements, easily leading to plating that is too thin or even missed. Summary of the Invention

[0004] The purpose of this invention is to provide a suspension conveying device and method for rack plating stainless steel parts, which solves the technical problems in the prior art where, during rack plating of stainless steel parts, the suspension conveying device needs to clamp the workpiece and transport it in the electroplating solution. However, the surface of stainless steel parts has irregular concave and convex structures, and the clamping position and contact method of traditional devices are fixed and cannot be dynamically adjusted, resulting in uneven current distribution, excessively thick plating and rough surface at the protrusions, and excessively thin plating or even missed plating at the depressions.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A suspended conveying device for plating stainless steel fittings includes a stirring mechanism mounted on a suspended chain conveyor. A clamping mechanism is mounted on the stirring mechanism. The clamping mechanism includes: a drive component fixedly mounted on the stirring mechanism; a positioning component fixedly mounted on the drive component; and an adjusting component connected to the positioning component for cooperating with the positioning component to clamp the stainless steel fittings. The adjustment assembly includes: a drive box connected to the positioning assembly; a hollow disc fixedly installed inside the drive box and connected to the positioning mechanism via a first connecting pipe; a hollow tube rotatably installed on the hollow disc, with an impeller mounted on the portion inside the hollow disc; a second connecting pipe fixedly installed on the hollow disc and rotatably connected to the hollow tube; and a fixed disc fixedly installed on the hollow tube, with a contact assembly fixedly installed at its bottom; wherein, when the impeller rotates, it drives the contact assembly on the fixed disc to rotate around the hollow tube, thereby dynamically adjusting the contact position between the contact assembly and the stainless steel fittings.

[0006] Preferably, the positioning component includes: a hollow ring having multiple through holes therethrough; a slider slidably mounted inside the hollow ring having threaded holes thereon; and bolts for connecting the hollow ring and the slider.

[0007] Preferably, the positioning component further includes: a connecting box fixedly connected to the slider and communicating with the impeller; a mounting box fixedly mounted on the connecting box, on which positive and negative screws threadedly connected to the drive box are rotatably mounted; and a clamping plate slidably mounted on the mounting box and threadedly connected to the positive and negative screws.

[0008] Preferably, the drive assembly includes: a storage box fixedly connected to the hollow ring; a pump body fixedly installed inside the storage box, with a hollow cylinder fixedly installed at its outlet end; a second folded hose with one end fixedly connected to the hollow cylinder and the other end fixedly connected to the connecting box; a first folded hose with one end extending into the storage box and fixedly connected to the storage box, and a sealing assembly fixedly installed on its other end, wherein the sealing assembly is rotatably connected to the hollow tube.

[0009] Preferably, three grinding blocks are fixedly installed on the drive box, and the top of the grinding blocks is flat and the sides are arc-shaped.

[0010] Preferably, the contact assembly includes: a slide tube fixedly connected to the fixed plate; and a contact head slidably installed inside the slide tube and connected to the slide tube by a spring.

[0011] Preferably, the sealing assembly includes: a hollow expansion ring embedded in the drive box; a fifth connecting pipe rotatably connected to the hollow tube and connected to the hollow expansion ring through a plurality of fourth connecting pipes; the hollow ring is located above the drive box and connected to the hollow expansion ring through a plurality of third connecting pipes, and is fixedly connected to the first folded flexible hose.

[0012] Preferably, the stirring mechanism includes: a fixed base fixedly connected to the overhead chain conveyor; a rotating frame rotatably mounted on the fixed base, on which a mounting bracket is fixedly mounted, and a first rotating shaft and a second rotating shaft rotatably mounted on the mounting bracket; a first rotating plate fixedly mounted on the first rotating shaft, on which a second rotating plate is rotatably connected, and the second rotating plate is rotatably connected to the fixed base; a second gear fixedly mounted on the first rotating shaft, on which a first gear fixedly connected to the second rotating shaft meshes; a worm gear fixedly mounted on the second rotating shaft, on which a worm gear rotatably connected to the mounting bracket meshes; and a dual-shaft motor rotatably mounted on the rotating frame, with one end of its power output shaft fixedly connected to the worm gear and the other end of its power output shaft fixedly connected to the storage box.

[0013] A method for using a suspended conveyor device for plating stainless steel fittings includes the following steps: Step 1: Select stainless steel parts that have undergone pretreatment and need to be plated; select the clamping position of the stainless steel parts according to the distribution of the unevenness on the surface of the stainless steel parts, and then use the clamping plate of the positioning component and the drive box to clamp the stainless steel parts. Step 2: Start the pump body. The impeller is driven to rotate by the liquid, which causes the fixed plate to move the contact assembly, thereby dynamically adjusting the contact position between the contact assembly and the stainless steel fittings. Step 3: After completing the dynamic adjustment of the contact position, start the overhead chain conveyor to transport the clamped stainless steel parts into the electroplating solution for electroplating. Step 4: Start the dual-axis motor to make the stainless steel parts swing and rotate synchronously in the electroplating solution; Step 5: After the stainless steel parts have completed the plating process, turn off the overhead conveyor, remove the parts, and perform subsequent cleaning and drying.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The suspended conveying device for plating stainless steel fittings in this invention is equipped with an adjustment component. The impeller in the adjustment component can rotate under liquid drive, causing the contact component on the hollow tube and the fixed plate to rotate around the hollow tube. The contact position is dynamically adjusted according to the uneven distribution of the surface of the stainless steel fitting. When there are protrusions in the fitting, the contact component can move away to reduce the current density, while it can move closer to the concave area to increase the current density. This solves the problem that the suspended conveying device needs to clamp the stainless steel fitting in the electroplating solution for transmission. However, the surface of the stainless steel fitting has an irregular uneven structure. The clamping position and contact method of the traditional device are fixed and cannot be dynamically adjusted, resulting in uneven current distribution, excessively thick plating and rough surface at the protrusions, and insufficient plating or even missed plating at the concave areas.

[0015] 2. In this invention, the grinding block on the drive box rubs against the contact head when the contact component rotates, removing the oxide layer on its surface. The spring ensures that the contact head is always in close contact with the accessory. The hollow expansion ring in the sealing component is kept in expansion through liquid circulation, filling the wear depressions on the contact surface between the drive box and the accessory. The liquid circulation system, in conjunction with the one-way valve, prevents the electroplating solution from entering the storage box and ensures stable current transmission.

[0016] 3. When the dual-shaft motor in this invention drives the stirring mechanism, the worm gear drives the worm wheel, the first gear and the second gear to rotate, so that the first rotating shaft drives the accessory to swing through the first rotating plate and the second rotating plate. At the same time, the other end of the motor drives the storage box to rotate the accessory. The combined motion of swinging and rotation promotes the flow of electroplating solution, renews the metal ions in the depression, and improves the uniformity and coverage of the plating layer. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0018] Figure 1 This is a perspective view of the suspended conveyor device for plating stainless steel fittings in this invention; Figure 2 In this invention Figure 1 Enlarged schematic diagram of part A; Figure 3 This is a schematic diagram of the internal structure of the hollow ring in this invention; Figure 4 In this invention Figure 3 Enlarged schematic diagram of part B; Figure 5 In this invention Figure 3 Enlarged schematic diagram of part C; Figure 6 This is a schematic diagram of the internal structure of the drive box in this invention; Figure 7 This is a schematic diagram of the assembly structure of the adjusting component and the sealing component in this invention; Figure 8 This is a schematic diagram of the contact component in the present invention; Figure 9 This is a schematic diagram of the hollow ring structure in this invention; Figure 10 This is a schematic diagram of the stirring mechanism in this invention.

[0019] Reference numerals: 100, Overhead chain conveyor; 200, Clamping mechanism; 211, Hollow ring; 212, Bolt; 213, Slider; 214, Connecting box; 215, Positive and negative screws; 216, Clamping plate; 217, Mounting box; 221, First folded hose; 222, Storage box; 223, Hollow cylinder; 224, Pump body; 225, Second folded hose; 231, Drive box; 232, First connecting pipe; 233, Hollow pipe; 234, Impeller; 235, Second connecting pipe; 236, Hollow disc; 237, Fixed disc; 241, The... 242. Third connecting pipe; 243. Fourth connecting pipe; 244. Hollow expansion ring; 245. Fifth connecting pipe; 256. Hollow ring; 257. Sliding pipe; 258. Contact head; 259. Spring; 200. Grinding block; 301. Stirring mechanism; 302. Dual-shaft motor; 303. Worm gear; 304. First gear; 305. Second gear; 306. First rotating plate; 307. Fixed base; 308. Mounting bracket; 309. Second rotating plate; 3091. Rotating frame; 3092. First rotating shaft; 3093. Second rotating shaft. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0023] This invention is described in detail with reference to the accompanying drawings. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not to scale. Furthermore, the accompanying drawings are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0024] Furthermore, it should be noted in the description of this invention that the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this invention should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Example 1: As Figures 1-9 As shown, the suspended conveyor device for plating stainless steel fittings includes a stirring mechanism 300 installed on the suspended chain conveyor 100, and a clamping mechanism 200 installed on the stirring mechanism 300. The clamping mechanism 200 includes an adjustment component, a positioning component, and a drive component.

[0027] The drive assembly is fixedly installed on the stirring mechanism 300; the positioning assembly is fixedly installed on the drive assembly; the adjustment assembly is connected to the positioning assembly and is used to clamp the stainless steel parts in cooperation with the positioning assembly.

[0028] The adjustment assembly includes a drive box 231, a hollow disc 236, a hollow tube 233, a second connecting tube 235, and a fixed disc 237. The drive box 231 is connected to the positioning assembly; the hollow disc 236 is fixedly installed inside the drive box 231 and is connected to the positioning mechanism via a first connecting tube 232; the hollow tube 233 is rotatably installed on the hollow disc 236, and an impeller 234 is installed on the portion of the hollow tube 233 located inside the hollow disc 236; the second connecting tube 235 is fixedly installed on the hollow disc 236 and is rotatably connected to the hollow tube 233; the fixed disc 237 is fixedly installed on the hollow tube 233, and a contact assembly is fixedly installed at the bottom of the fixed disc 237; when the impeller 234 rotates, it drives the contact assembly on the fixed disc 237 to rotate around the hollow tube 233, thereby dynamically adjusting the contact position between the contact assembly and the stainless steel fittings.

[0029] It should be noted that the stainless steel parts to be plated should be selected first. These stainless steel parts need to undergo pretreatment such as chemical degreasing to remove surface oil and cleaning with hot water to ensure that the selected stainless steel parts meet the standards. This will prevent the stainless steel parts from affecting the subsequent plated process. Then, the current should be adjusted to allow the current to flow into the contact components.

[0030] After selecting the stainless steel fittings, place them in the center of the positioning assembly. Adjust the positioning assembly according to the distribution of the concave and convex parts on the stainless steel fittings, so that the positioning assembly and adjustment assembly clamp the stainless steel fittings. For example, for the concave parts of the stainless steel fittings, the contact assembly should be moved closer to them appropriately, and conversely, for the convex parts of the stainless steel fittings, the contact assembly should be moved further away appropriately. In this way, the current through the contact assembly can be reasonably distributed on the stainless steel fittings, initially avoiding the situation where the convex parts of the stainless steel fittings are too close to the anode, resulting in excessively high current density and an excessively thick coating; while the concave parts are too far from the anode, resulting in insufficient current density and an excessively thin coating or even no coating at all.

[0031] By activating the drive assembly, the drive assembly delivers liquid. The delivered liquid enters the hollow disc 236 through the impeller 234, driving the impeller 234. Finally, it is discharged from the second connecting pipe 235. In this way, the impeller 234 can drive the hollow tube 233 to rotate. The hollow tube 233 causes the contact assembly to rotate through the fixed disc 237. The rotating contact assembly can move on a pre-designed trajectory, so that the current transmitted on the contact assembly can act on different positions on the stainless steel fittings. This allows for further fine-tuning according to the distribution of the concave and convex parts of the stainless steel fittings. After all adjustments are made, the overhead conveyor 100 is activated to transport the suspended stainless steel fittings into the electroplating solution to complete the plating process.

[0032] like Figure 2 and Figure 3 As shown, the positioning assembly includes a hollow ring 211, a slider 213, a bolt 212, a connecting box 214, a mounting box 217, and a clamping plate 216. The hollow ring 211 is fixedly connected to the drive mechanism and has multiple through holes. The slider 213 is slidably installed inside the hollow ring 211 and has threaded holes. The bolt 212 is used to connect the hollow ring 211 and the slider 213. The connecting box 214 is fixedly connected to the slider 213 and communicates with the impeller 234. The mounting box 217 is fixedly installed on the connecting box 214, and a positive and negative screw 215 that is threadedly connected to the drive box 231 is rotatably installed on the mounting box 217. The clamping plate 216 is slidably installed on the mounting box 217 and is threadedly connected to the positive and negative screw 215.

[0033] It should be specifically explained that, first, the selected stainless steel part is placed between the clamping plate 216 and the drive box 231. Based on the distribution of the protrusions and recesses on the stainless steel part, the clamping position is selected. After the clamping position is selected, the forward and reverse screws 215 are rotated. The forward and reverse screws 215 will cause the clamping plate 216 and the drive box 231 to move closer or further apart. When the grinding block 261 and the drive box 231 are close together, the stainless steel part can be clamped. After clamping, the slider 213 is rotated, causing it to move inside the hollow ring 211. This allows for adjustment of the placement position according to the specific shape of the stainless steel part. If the stainless steel fittings have deep holes or irregular through holes, when placed in the correct position, the deep holes or irregular through holes can directly receive the plating solution for electroplating. However, if the placement is incorrect, the deep holes or irregular through holes may not receive the plating solution for a long time, or too little plating solution may be received, resulting in a thin plating layer that does not meet the standards. Finally, after the stainless steel fittings are placed correctly, they are connected to the slider 213 by bolt 212 through the threaded groove, which fixes the slider 213 to the hollow ring 211 and prevents positional displacement, which would be detrimental to the plating layer.

[0034] like Figures 3-5 As shown, the drive assembly includes a storage box 222, a pump body 224, a second folded hose 225, and a first folded hose 221. The storage box 222 is fixedly connected to the hollow ring 211; the pump body 224 is fixedly installed inside the storage box 222, and a hollow cylinder 223 is fixedly installed at the outlet end of the pump body 224; one end of the second folded hose 225 is fixedly connected to the hollow cylinder 223, and the other end of the second folded hose 225 is fixedly connected to the connecting box 214; one end of the first folded hose 221 extends into the storage box 222 and is fixedly connected to the storage box 222, and a sealing component is fixedly installed on the other end of the first folded hose 221; the first folded hose 221 and the sealing component are rotatably connected to the hollow tube 223.

[0035] It should be specifically explained that after the drive box 231 and clamping plate 216 clamp the stainless steel parts and the slider 213 is positioned, the pump body 224 can be started. The water inlet of the pump body 224 will draw the liquid in the storage box 222 into the hollow cylinder 223 and distribute the liquid into the two second folded hoses 225. The diverted second folded hoses 225 will enter the corresponding connecting box 214, and then enter the hollow disc 236 through the impeller 234, and be discharged from the second connecting pipe 235. Due to the entry of liquid, the liquid will drive the impeller 234 to rotate. The rotation of the impeller 234 will cause the hollow tube 233 to rotate. The rotation of the hollow tube 233 will cause the solid... The fixed plate 237 drives the contact component to rotate, causing it to move along a pre-set path. This movement further adjusts the position of the stainless steel fitting, thus changing the current distribution on the fitting. This allows for precise adjustment of the current distribution based on the unevenness of the stainless steel fitting, ensuring optimal electroplating results. Furthermore, when the unevenness of the fitting is scattered, the contact component can be further adjusted during electroplating to gradually adapt the current distribution to different uneven areas, further optimizing the electroplating effect on the stainless steel fitting.

[0036] like Figures 6-8 As shown, three grinding blocks 261 are fixedly installed on the drive box 231. The top of the grinding block 261 is flat and the sides are curved.

[0037] The contact assembly includes a slide tube 251 and a contact head 252. The slide tube 251 is fixedly connected to the fixed plate 237; the contact head 252 is slidably installed inside the slide tube 251 and is connected to the slide tube 251 by a spring 253.

[0038] It should be specifically explained that, since the three polishing blocks 261 are distributed on the moving path of the contact assembly, when the fixed plate 237 drives the slide tube 251 to rotate, the contact head 252 inside the slide tube 251 will come into contact with the polishing blocks 261. Since the bottom edge of the slide tube 251 is also arc-shaped, combined with the arc-shaped edge of the polishing block 261, the contact head 252 will partially return to the inside of the slide tube 251 due to the squeezing force during rotation. In this way, it can pass through the polishing block 261. During the process of passing through the polishing block 261, it will squeeze and rub against the polishing block 261, thereby polishing the contact end of the contact head 252 and removing the oxide layer at the contact end of the contact head 252. When the contact head 252 contacts the stainless steel parts, it can stably transmit current. And due to the action of the spring 253, even after multiple polishing, the contact head 252 can still make close contact with the stainless steel parts, ensuring the transmission of current, thereby ensuring that the uneven parts of the stainless steel parts can be stably plated.

[0039] like Figure 6 and Figure 7 As shown, the sealing assembly includes a hollow expansion ring 243, a fifth connecting pipe 244, and a hollow ring 245. The hollow expansion ring 243 is embedded in the drive box 231; the fifth connecting pipe 244 is rotatably connected to the hollow pipe 233, and the fifth connecting pipe 244 is connected to the hollow expansion ring 243 through multiple fourth connecting pipes 242; the hollow ring 245 is located above the drive box 231, and the hollow ring 245 is connected to the hollow expansion ring 243 through multiple third connecting pipes 241, and the hollow ring 245 is fixedly connected to the first folded flexible hose 221.

[0040] It should be specifically explained that the liquid discharged from the second connecting pipe 235 enters the hollow pipe 233, and then enters the hollow expansion ring 243 through the fifth connecting pipe 244 and the fourth connecting pipe 242. A one-way valve is installed in the fourth connecting pipe 242, ensuring that the liquid can only enter the hollow expansion ring 243 through the fourth connecting pipe 242 and cannot flow back from the hollow expansion ring 243 to the fourth connecting pipe 242. The liquid entering the hollow expansion ring 243 then enters the hollow ring 245 through the third connecting pipe 241, and finally flows back to the storage box 222 through the first folded hose 221, completing the entire liquid circulation. A one-way valve is also installed on the third connecting pipe 241. The valve ensures that the third connecting pipe 241 can only supply water from the hollow expansion ring 243 to the hollow ring 245, preventing backflow. This means that once liquid enters the hollow expansion ring 243, it needs to reach a certain volume and pressure to be discharged, thus keeping the hollow expansion ring 243 in an expanded state. Even if the contact surface between the drive box 231 and the stainless steel fittings experiences concave wear, making it impossible to prevent the electroplating solution from entering, the hollow expansion ring 243 can still maintain connection. Furthermore, the valve continuously adjusts the hollow expansion ring 243 according to the liquid flow, keeping it in an optimal expansion state. Even if the hollow expansion ring 243 wears during use, it maintains a consistent sealing effect.

[0041] Because the distribution of the three fourth connecting pipes 242 and the three third connecting pipes 241 divides the hollow expansion ring 243 into six equal parts, this uniform distribution makes the flow path and flow rate distribution of water within the hollow expansion ring 243 more balanced during the process of the fourth connecting pipes 242 supplying liquid to the hollow expansion ring 243 and the hollow expansion ring 243 discharging liquid to the third connecting pipes 241. The liquid flow can act evenly on all parts of the hollow expansion ring 243, avoiding uneven expansion due to excessive or insufficient water flow in some areas. This ensures that the hollow expansion ring 243 can achieve uniform and stable expansion throughout the entire working process, effectively improving the controllability and stability of expansion. This effectively prevents the electroplating solution from entering the storage box 222 and corroding the contact head 252, avoiding affecting the current transmission of the contact head 252, and further improving the stability of electroplating on the concave and convex parts of the stainless steel fittings.

[0042] Working principle: First, the stainless steel parts are pretreated with chemical degreasing and hot water cleaning to ensure that they meet the plating standards; then the current is adjusted so that it can be passed to the contact components. Place the stainless steel fittings into the positioning assembly consisting of clamping plate 216 and drive box 231, and select the clamping position according to the distribution of the concave and convex parts of the fittings; rotate the positive and negative screws 215 to drive the clamping plate 216 and drive box 231 to move closer or further apart, thus clamping the stainless steel fittings; rotate the slider 213 to move within the hollow ring 211 to adjust the placement of the stainless steel fittings, ensuring that the electroplating solution can flow smoothly into its deep holes or irregular through holes. After adjustment, fix the slider 213 and the hollow ring 211 with bolts 212.

[0043] When the pump body 224 is started, the liquid in the storage box 222 is drawn into the hollow cylinder 223 through its inlet end. The liquid is then diverted to the connecting box 214 through the second folded hose 225, and then enters the hollow disc 236 through the impeller 234. Finally, it is discharged from the second connecting pipe 235. The liquid flow drives the impeller 234 to rotate, which in turn drives the hollow tube 233, the fixed disc 237 and the contact components to rotate around the hollow tube 233. This causes the contact components to move, further fine-tuning the position of the current on the stainless steel fittings and optimizing the current distribution. When the fixed plate 237 drives the slide tube 251 to rotate, the contact head 252 inside the slide tube 251 contacts the grinding block 261 on the drive box 231. Due to the arc-shaped edges and rotational squeezing force of both, the contact head 252 partially retracts into the slide tube 251 and rubs against the grinding block 261 to remove the oxide layer at the contact end of the contact head 252. The spring 253 ensures that the contact head 252 always makes close contact with the stainless steel parts, stabilizing the current transmission. The liquid discharged from the second connecting pipe 235 enters the hollow pipe 233, then enters the hollow expansion ring 243 through the fifth connecting pipe 244 and the fourth connecting pipe 242, and then enters the hollow ring 245 through the third connecting pipe 241. Finally, it flows back to the storage box 222 through the first folded hose 221. The one-way valves on the fourth connecting pipe 242 and the third connecting pipe 241 ensure unidirectional flow of the liquid, keeping the hollow expansion ring 243 in an expanded state, filling the concave wear of the contact surface between the drive box 231 and the stainless steel accessories, preventing the electroplating solution from entering the storage box 222 and corroding the contact head 252, and ensuring stable current delivery and electroplating stability. After completing the above adjustments, start the overhead chain conveyor 100 to transport the suspended stainless steel parts into the electroplating solution to complete the plating process.

[0044] Example 2: Figure 2 and Figure 10 As shown, while all other parts are the same as in Embodiment 1, the difference between this embodiment and Embodiment 1 is that the stirring mechanism 300 includes a fixed base 307, a rotating frame 3091, a first rotating plate 306, a second gear 305, a worm gear 302, and a dual-axis motor 301.

[0045] The fixed base 307 is fixedly connected to the overhead chain conveyor 100; the rotating frame 3091 is rotatably mounted on the fixed base 307, and a mounting frame 308 is fixedly mounted on the rotating frame 3091. A first rotating shaft 3092 and a second rotating shaft 3093 are rotatably mounted on the mounting frame 308; a first rotating plate 306 is fixedly mounted on the first rotating shaft 3092, and a second rotating plate 309 is rotatably connected to the first rotating plate 306. The second rotating plate 309 is rotatably connected to the fixed base 307; the second gear 305 is fixed. Mounted on the first rotating shaft 3092, the second gear 305 meshes with the first gear 304 which is fixedly connected to the second rotating shaft 3093; the worm gear 302 is fixedly mounted on the second rotating shaft 3093, and the worm 303 which is rotatably connected to the mounting bracket 308 meshes with the worm gear 302; the dual-axis motor 301 is rotatably mounted on the rotating bracket 3091, one end of the power output shaft of the dual-axis motor 301 is fixedly connected to the worm 303, and the other end of the power output shaft of the dual-axis motor 301 is fixedly connected to the storage box 222.

[0046] It should be specifically noted that after the stainless steel parts are immersed in the electroplating solution, the dual-axis motor 301 can be activated as needed. If the stainless steel parts to be plated do not have many deep holes or irregular through-holes that prevent the electroplating solution from flowing in, it can be omitted; otherwise, it can be activated. Alternatively, after initial plating, the activation of the dual-axis motor 301 can be selected based on the plating effect. When the dual-axis motor 301 is activated, it drives the worm gear 303 to rotate. The worm gear 303 causes the worm wheel 302 to rotate, which in turn drives the first gear 304 and the second gear 305 through the second rotating shaft 3093 to rotate the first rotating shaft 3092. This causes the first rotating shaft 3092 to swing through the first rotating plate 306, causing the rotating frame 3091 to continuously swing on the fixed base 307. After the dual-axis motor 301 starts, it will continuously oscillate, which will drive the stainless steel parts clamped on the clamping mechanism 200 to oscillate in the electroplating solution. The oscillation motion can make the electroplating solution form a more uniform flow field on the surface of the stainless steel parts, reducing the local concentration polarization phenomenon of the electroplating solution caused by the workpiece being stationary. At the protrusions, the oscillation can disperse the excessively thick coating deposits. At the depressions, it is conducive to the entry of the electroplating solution and the replenishment of metal ions, promoting the uniform growth of the coating and effectively improving the uniformity and coverage of the coating. During the oscillation process, the position of the stainless steel parts in the electroplating solution will change, so that the position of deep holes or irregular through holes on the stainless steel parts changes. This can improve the flow of the electroplating solution in the deep holes or irregular through holes of the stainless steel parts according to the needs, avoiding the problem of weak electroplating in the deep holes or irregular through holes.

[0047] Furthermore, the worm gear 303 will cause the stainless steel parts clamped on the clamping mechanism 200 to rotate continuously. The rotational movement can continuously renew the electroplating solution in the recess, increase the supply of metal ions, and promote the deposition in the recess. At the same time, it can also avoid the problem of excessively thick plating layer caused by poor flow of electroplating solution in the protrusion, making the plating layer more evenly distributed in the protrusion and recess.

[0048] Working principle: When stainless steel parts enter the electroplating solution, the dual-axis motor 301 is activated based on their structure, such as whether there are deep holes, irregular through holes or other structures that make it difficult for the electroplating solution to flow in, or the initial plating effect. After the dual-axis motor 301 is started, its power output shaft drives the worm 303 to rotate; the worm 303 meshes with the worm wheel 302, driving the worm wheel 302 to rotate, and the worm wheel 302 drives the first gear 304 to rotate through the second rotating shaft 3093; the first gear 304 meshes with the second gear 305, thereby driving the second gear 305 and the first rotating shaft 3092 fixed on it to rotate.

[0049] The rotation of the first rotating shaft 3092 drives the first rotating plate 306 to move. The first rotating plate 306 is rotatably connected to the second rotating plate 309, which in turn is rotatably connected to the fixed base 307, thereby causing the rotating frame 3091 to continuously swing on the fixed base 307. The rotating frame 3091 drives the clamping mechanism 200 and the stainless steel parts to swing in the electroplating solution, so that the electroplating solution forms a more uniform flow field on the surface of the stainless steel parts, reducing local concentration polarization. It disperses the excessively thick plating deposits at the protrusions and promotes the entry of the electroplating solution and the replenishment of metal ions at the depressions, improving the uniformity and coverage of the plating layer. At the same time, it changes the position of the stainless steel parts in the electroplating solution, improves the flow of the electroplating solution at deep holes or irregular through holes, and avoids the problem of weak electroplating. The other end of the dual-axis motor 301 is fixedly connected to the storage box 222 (the storage box 222 belongs to the clamping mechanism 200, and this connection can drive the clamping mechanism 200 to rotate), so that the stainless steel parts on the clamping mechanism 200 rotate continuously; the rotational motion keeps the electroplating solution in the recessed area refreshed, increases the supply of metal ions, and promotes deposition; it avoids the plating layer from being too thick due to poor flow of electroplating solution in the raised area, and makes the plating layer distribution in the raised and recessed areas more uniform.

[0050] Example 3: While all other parts are the same as in Example 1, the difference between this example and Example 1 is as follows: A method for using a suspension conveyor device for plating stainless steel fittings, the method comprising the following steps: Step 1: Select the stainless steel parts to be plated. First, perform chemical degreasing and hot water cleaning pretreatment to ensure that the surface is free of oil stains. Place the parts between the clamping plate 216 and the drive box 231 of the positioning component. According to the distribution of the concave and convex parts on the surface of the parts, rotate the positive and negative screws 215 to bring the clamping plate and the drive box closer to each other and clamp the parts to a reasonable position. Adjust the position of the slider 213 in the hollow ring 211 to adapt to the shape of the parts, such as deep holes or irregular through holes. Fix the slider with bolts 212 to complete the initial positioning. Step 2: Start the pump body 224 of the drive assembly to deliver the water source in the storage box 222 to the connecting box 214 through the hollow cylinder 223 and the second folded hose 225. The water flow drives the impeller 234 of the regulating assembly to rotate, which in turn drives the hollow tube 233 and the fixed plate 237 to rotate, causing the contact assembly to move. The water flows through the hollow plate 236 and the second connecting pipe 235 into the hollow tube 233, and then flows into the hollow expansion ring 243 through the fifth connecting pipe 244 and the fourth connecting pipe 242 of the sealing assembly. It then flows back to the storage box through the third connecting pipe 241, the hollow ring 245, and the first folded hose 221, forming a cycle. When the contact assembly moves, the contact head 252 rubs against the grinding block 261 on the drive box 231 to remove the oxide layer and ensure stable current transmission. Step 3: After completing the dynamic adjustment of the contact position, start the overhead chain conveyor 100 to transport the clamped stainless steel parts into the electroplating solution; the current is passed into the parts through the contact components. According to the distribution of the concave and convex parts of the parts, the water flow drives the contact components to move continuously, finely adjusting the current distribution to avoid excessive plating on the protruding parts and incomplete plating on the concave parts. Step 4: If the parts have deep holes or irregular through holes, or if further optimization of the plating uniformity is required, start the dual-axis motor 301 of the stirring mechanism 300. One end of the motor drives the worm gear 303 to rotate the worm wheel 302, the first gear 304, the second gear 305, and the first rotating shaft 3092, causing the first rotating plate 306 and the second rotating plate 309 to swing, causing the rotating frame 3091 and the parts to swing in the electroplating solution; the other end directly drives the storage box 222 to make the parts rotate synchronously. The swinging and rotating motion promotes the flow of the electroplating solution, renews the metal ions in the depressions, and ensures uniform deposition of the plating layer. Step 5: After the stainless steel parts have completed the plating process, shut down the overhead conveyor 100 and pump 224, and stop the water circulation and current input; loosen the positive and negative screws 215 and bolts 212, remove the parts and perform subsequent cleaning and drying; check the wear of components such as the stirring mechanism 300 and sealing components, and maintain or replace vulnerable parts such as the hollow expansion ring 243 and grinding block 261 to ensure that the equipment is restored to its initial state and ready for the next plating operation.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0052] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A suspended conveyor device for plating stainless steel fittings, comprising a stirring mechanism mounted on a suspended chain conveyor, wherein a clamping mechanism is mounted on the stirring mechanism, characterized in that: The clamping mechanism includes: A positioning component, on which an adjustment component is mounted, for cooperating with the adjustment component to clamp the stainless steel fittings; The adjustment component includes: A drive box is connected to the positioning component. Multiple grinding blocks are fixedly installed on the drive box. The top of each grinding block is flat, and the two sides are arc-shaped. A hollow disc is fixedly installed inside the drive box and connected to the positioning mechanism through a first connecting pipe; A hollow tube is rotatably mounted on the hollow disc, and an impeller is mounted on the portion of the tube located inside the hollow disc; The second connecting pipe is fixedly installed on the hollow disc and rotatably connected to the hollow pipe; A fixed plate is fixedly installed on the hollow tube, and a contact component is fixedly installed at its bottom; Drive assembly, used to drive the impeller to rotate; When the impeller rotates, it drives the contact component on the fixed disk to rotate around the hollow tube, thereby dynamically adjusting the contact position between the contact component and the stainless steel fittings.

2. The suspended conveyor device for plating stainless steel fittings according to claim 1, characterized in that, The positioning component includes: A hollow ring with multiple through holes; A slider is slidably installed inside the hollow ring, and a threaded hole is provided on it; Bolts are used to connect the hollow ring to the slider.

3. The suspended conveyor device for plating stainless steel fittings according to claim 2, characterized in that, The positioning component also includes: A connecting box is fixedly connected to the slider and communicates with the impeller; The mounting box is fixedly installed on the connecting box, and positive and negative screws that are threadedly connected to the drive box are rotatably installed on it. The clamp is slidably mounted on the mounting box and threadedly connected to the positive and negative screws.

4. The suspended conveyor device for plating stainless steel fittings according to claim 3, characterized in that, The driving component includes: The storage box is fixedly connected to the hollow ring; The pump body is fixedly installed inside the storage box, and a hollow cylinder is fixedly installed at its liquid outlet end; The second folded hose has one end fixedly connected to the hollow cylinder and the other end fixedly connected to the connecting box; The first folded flexible tube has one end extending into the storage box and fixedly connected to the storage box, and a sealing component is fixedly installed on the other end, and the sealing component is rotatably connected to the hollow tube.

5. The suspended conveyor device for plating stainless steel fittings according to claim 1, characterized in that, The contact component includes: The slide tube is fixedly connected to the fixed plate; The contact head is slidably mounted inside the slide tube and connected to the slide tube by a spring.

6. The suspended conveyor device for plating stainless steel fittings according to claim 4, characterized in that, The sealing assembly includes: A hollow expansion ring is embedded in the drive box; The fifth connecting pipe is rotatably connected to the hollow tube and is connected to the hollow expansion ring through multiple fourth connecting pipes; A hollow ring is located above the drive box and is connected to the hollow expansion ring through multiple third connecting pipes, and is fixedly connected to the first folded flexible tube.

7. The suspended conveyor device for plating stainless steel fittings according to claim 4, characterized in that, The stirring mechanism includes: The fixed base is fixedly connected to the overhead chain conveyor; A rotating frame is rotatably mounted on the fixed base, and a mounting bracket is fixedly mounted on the frame. A first rotating shaft and a second rotating shaft are rotatably mounted on the mounting bracket. A first rotating plate is fixedly installed on the first rotating shaft, and a second rotating plate is rotatably connected to it. The second rotating plate is rotatably connected to the fixed base. The second gear is fixedly mounted on the first rotating shaft, and a first gear fixedly connected to the second rotating shaft meshes on it. A worm gear is fixedly mounted on the second rotating shaft, and a worm gear that is rotatably connected to the mounting bracket is meshed on it. A dual-axis motor is rotatably mounted on the rotating frame, with one end of its power output shaft fixedly connected to a worm gear and the other end of its power output shaft fixedly connected to a storage box.

8. A method for suspending and conveying stainless steel fittings for rack plating, using the suspension and conveying device for rack plating stainless steel fittings as described in any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Select stainless steel parts that have undergone pretreatment and need to be plated; select the clamping position of the stainless steel parts according to the distribution of the unevenness on the surface of the stainless steel parts, and then use the clamping plate of the positioning component and the drive box to clamp the stainless steel parts. Step 2: Start the pump body. The impeller is driven to rotate by the liquid, which causes the fixed plate to move the contact component. This dynamically adjusts the contact position between the contact component and the stainless steel parts. When the contact component moves, the contact head rubs against the grinding block on the drive box to remove the oxide layer and ensure stable current transmission. Step 3: After completing the dynamic adjustment of the contact position, start the overhead chain conveyor to transport the clamped stainless steel parts into the electroplating solution for electroplating. Step 4: Start the dual-axis motor to make the stainless steel parts swing and rotate synchronously in the electroplating solution; Step 5: After the stainless steel parts have completed the plating process, turn off the overhead conveyor, remove the parts, and perform subsequent cleaning and drying.

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