Rivet nut galvanizing device

By designing an automated galvanizing device, the problems of residual galvanizing liquid and safety hazards of manual operation were solved. The device enables closed-loop drying of galvanizing liquid and precise dispensing of nuts, thereby improving operational safety and efficiency.

CN224047485UActive Publication Date: 2026-03-27DONGGUAN RUIYUDA HARDWARE PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In the existing galvanizing process for rivet nuts, there is a lot of residual zinc plating liquid, which affects the thread accuracy and installation fit. In addition, the unloading process relies on manual operation, which poses a safety hazard.

Method used

A galvanizing device was designed, comprising components such as a winch motor, a geared motor, a bearing housing, a material cylinder, a top cover, and a drain pipe. This device enables automatic hoisting, closed-loop drying, and precise dispensing of the material cylinder, avoiding liquid splashing and manual operation.

Benefits of technology

It achieves closed-loop drying of galvanizing liquid, improves feeding and discharging speed and safety, ensures accurate nut delivery, and avoids the safety hazards of liquid residue and manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of rivet nut processing, and discloses a rivet nut galvanizing device which comprises a galvanizing pool, lifting frames are fixedly connected to the two sides of the top end of the galvanizing pool, a winch motor is fixedly connected to the top ends of the lifting frames, an output shaft of the winch motor is fixedly connected with a winch shaft, a lifting rope is wound around the outer portion of the winch shaft, and the lifting rope is fixedly connected with the winch shaft. Bearing seats are movably connected to the two sides of the inner wall of the galvanizing pool, a charging barrel is transversely mounted between the bearing seats, hooks are fixedly connected to the two ends of the charging barrel, a rotary disc is fixedly connected to one side of each hook, and mounting grooves are formed in the bearing seats. According to the rivet nut galvanizing device, through the arrangement of the gear variable-speed motor, the anti-rotating shaft, the bearing seat, the charging barrel, the top cover, the sliding rail and the drainage pipe, galvanizing, sealing and spin-drying integrated treatment on rivet nuts can be achieved, centrifugal spin-drying is conducted in a sealed space, liquid splashing is avoided, and the problem that after rivet nuts are galvanized, a large amount of liquid is left is solved through the structure.
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Description

TECHNICAL FIELD

[0001] The utility model relates to pull rivet nut processing technical field, concretely is pull rivet nut galvanization device. BACKGROUND

[0002] Pull rivet nut is a kind of threaded connection fastener for thin plate or tubular product, and the main function is to quickly form reliable threaded connection point on thin-walled workpiece where threading tapping cannot be carried out, and the surface of pull rivet nut is often subjected to galvanization treatment in order to enhance its durability in high humidity, corrosive or outdoor environment.

[0003] At present, the common pull rivet nut galvanization process mostly adopts manual fishing or simple barrel plating mode, and there is a large amount of plating solution remaining on the surface of pull rivet nut after galvanization, which is easy to be carried out with the barrel during discharging process, increasing the cleaning burden. The plating solution is attached to the nut thread or hole for a long time, and after drying, it may affect the thread accuracy and installation cooperation. Therefore, there is an urgent need for pull rivet nut galvanization device to solve the above technical defects. SUMMARY

[0004] The utility model aims at providing pull rivet nut galvanization device to solve the problem of liquid residue after pull rivet nut galvanization raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: pull rivet nut galvanization device, including zinc plating pool, both sides of the top of zinc plating pool are fixedly connected with lifting frame, the top of lifting frame is fixedly connected with winch motor, the output shaft of winch motor is fixedly connected with winch shaft, the winch shaft is wound with lifting rope outside, both sides of the inner wall of zinc plating pool are movably connected with bearing seat, the bearing seat is transversely installed with barrel between, both ends of barrel are fixedly connected with hook, one side of hook is fixedly connected with rotating disc, the bearing seat is provided with installation slot, the rotating disc is embedded in installation slot, the left side of zinc plating pool is installed with gear variable speed motor, the output shaft of gear variable speed motor is fixedly connected with anti-rotation shaft, the anti-rotation shaft is fixedly inserted into the rotating disc shaft center of the left side of zinc plating pool, the top of zinc plating pool is provided with top cover.

[0006] As a further technical scheme of the utility model, both sides of the top of top cover are fixedly connected with handle, and the length and width of top cover are both greater than the diameter of barrel.

[0007] As a further technical scheme of the utility model, the bottom end of lifting rope is fixedly connected with sinker, and the bottom end of lifting rope is fixedly connected with hook.

[0008] As a further technical scheme of the utility model, two groups of parallel sliding rails are arranged at the top of zinc plating pool for opening and closing top cover.

[0009] As a further technical scheme of the utility model, the zinc plating tank is fixedly connected with a water tank on the left side, a water pump is fixedly connected with the water tank on the left side, and a water inlet pipe is connected between the output end of the water pump and the zinc plating tank.

[0010] As a further technical scheme of the utility model, the zinc plating tank is fixedly connected with a water tank on the left side, a water pump is fixedly connected with the water tank on the left side, and a water inlet pipe is connected between the output end of the water pump and the zinc plating tank.

[0011] As a further technical scheme of the utility model, the zinc plating tank is fixedly connected with a water tank on the left side, a water pump is fixedly connected with the water tank on the left side, and a water inlet pipe is connected between the output end of the water pump and the zinc plating tank.

[0012] As a further technical scheme of the utility model, the zinc plating tank is fixedly connected with a water tank on the left side, a water pump is fixedly connected with the water tank on the left side, and a water inlet pipe is connected between the output end of the water pump and the zinc plating tank.

[0013] Compared with the prior art, the utility model has the advantages that the galvanized rivet nut device not only realizes centrifugal spin-drying in a closed space, avoids liquid splashing, improves the speed of feeding and discharging and the safety of operation, but also realizes accurate batch nut feeding and prevents nuts from falling due to manual feeding.

[0014] (1) the gear variable speed motor, the anti-rotation shaft, the bearing seat, the barrel, the top cover, the slide rail and the drain pipe are arranged, the galvanizing, sealing and spin-drying integration of the rivet nut can be realized, the centrifugal spin-drying is carried out in the closed space, liquid splashing is avoided, and the problem of liquid residue after traditional rivet nut galvanizing is solved.

[0015] (2) the top cover, the winch motor, the winch shaft, the lifting rope, the hook and the barrel are arranged, the automatic hoisting and rapid batch replacement of the barrel can be realized, manual feeding or replacement of the next batch of rivet nuts is facilitated, the problem that the feeding and discharging of the existing galvanizing device relies on manual operation is solved, the speed of feeding and discharging and the safety of operation are improved.

[0016] (3) the discharge chute, the slide rail, the water tank, the water pump, the water inlet pipe, the servo motor, the threaded sleeve, the push plate and the movable door are arranged, accurate batch nut feeding is realized through the hoisting and automatic feeding of the barrel, and the problem that nuts fall due to manual feeding is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the structure of the utility model;

[0018] Figure 2 It is a front view of the structure of the utility model;

[0019] Figure 3 It is the top cover plan view structural diagram of the utility model;

[0020] Figure 4 It is the push plate side view structural diagram of the utility model.

[0021] In the drawing: 1, zinc plating pool; 2, lifting frame; 3, hoist motor; 4, hoist shaft; 5, lifting rope; 6, handle; 7, top cover; 8, hook; 9, bearing seat; 10, rotating disc; 11, installation groove; 12, drain pipe; 13, movable door; 14, barrel; 15, hole; 16, water tank; 17, anti-rotation shaft; 18, gear variable speed motor; 19, water pump; 20, water inlet pipe; 21, fixed seat; 22, servo motor; 23, threaded sleeve; 24, push plate; 25, threaded rod; 26, blanking groove; 27, slide rail. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides an embodiment: pull rivet nut zinc plating device, including zinc plating pool 1, the both sides of zinc plating pool 1 top are fixedly connected with lifting frame 2, lifting frame 2 top is fixedly connected with hoist motor 3, the output shaft of hoist motor 3 is fixedly connected with hoist shaft 4, hoist shaft 4 outside is wound with lifting rope 5, the both sides of zinc plating pool 1 inner wall are movably connected with bearing seat 9, and bearing seat 9 between transversely installs barrel 14, and the both ends of barrel 14 are fixedly connected with hook 8, and one side of hook 8 is fixedly connected with rotating disc 10, and bearing seat 9 is provided with installation groove 11, and rotating disc 10 is embedded in installation groove 11, and zinc plating pool 1 left side is installed with gear variable speed motor 18, and the output shaft of gear variable speed motor 18 is fixedly connected with anti-rotation shaft 17, and anti-rotation shaft 17 is fixedly inserted into the axle of rotating disc 10 on the left side of zinc plating pool 1, and the top of zinc plating pool 1 is provided with top cover 7, and the both sides of top cover 7 top are fixedly connected with handle 6, and the length and width of top cover 7 are greater than the diameter of barrel 14, and the top of zinc plating pool 1 is provided with two groups of parallel slide rails 27 for the opening and closing of top cover 7;

[0024] Specifically, as Figure 1 And Figure 3As shown, the pull nut is placed inside the barrel 14, the gear motor 18 is started to drive the anti-rotation shaft 17 to rotate, the barrel 14 is rotated at low speed through the bearing seat 9, the nut is uniformly immersed in the galvanizing pool 1, when the immersion is completed, the top cover 7 is horizontally pushed along the slide rail 27 to cover the top of the galvanizing pool 1 to form a closed space, then the used galvanizing liquid is discharged through the drain pipe 12, and the gear motor 18 is started again to drive the barrel 14 to rotate at high speed to perform centrifugal spin-drying in the closed space to avoid liquid splashing.

[0025] The bottom end of the lifting rope 5 is fixedly connected with a lifting weight, and the bottom end of the lifting rope 5 is hookingly connected and fixed with the hook 8.

[0026] Specifically, as shown in Figure 1 and Figure 2 After completing the galvanizing and spin-drying process of a batch of pull nuts, the top cover 7 is pulled away along the slide rail 27, then the winch shaft 4 is driven to rotate by the winch motor 3 to drive the lifting rope 5 to be lowered, the bottom end of the lifting rope 5 is connected and fixed with the hook 8, and the barrel 14 is lifted away from the galvanizing pool 1, so that the workpiece after galvanizing is moved out to the outside, facilitating manual discharge or replacing the next batch of pull nuts.

[0027] The water tank 16 is fixedly connected to the left side of the galvanizing pool 1, the water pump 19 is fixedly connected to the left side of the water tank 16, the inlet pipe 20 is connected between the output end of the water pump 19 and the galvanizing pool 1, the barrel 14 is provided with uniformly distributed holes 15 on the outer wall, the drain pipe 12 is installed at the bottom right end of the galvanizing pool 1, the fixed seat 21 is fixedly connected to the outer wall of the lifting frame 2, the servo motor 22 is fixedly connected to the fixed seat 21, the threaded rod 25 is fixedly connected to the output shaft of the servo motor 22, the threaded sleeve 23 is sleeved outside the threaded rod 25, the push plate 24 is fixedly connected to the top end of the threaded sleeve 23, the discharge chute 26 is arranged below the push plate 24 and fixed in the lifting frame 2, and the movable door 13 is arranged on the outer left side of the barrel 14.

[0028] Specifically, as shown in Figure 1 and Figure 4 Firstly, the barrel 14 is lifted to above the galvanizing pool 1 through the lifting rope 5, one group of movable doors 13 are opened opposite the below discharge chute 26, the servo motor 22 is started to drive the threaded sleeve 23 to rotate and push the push plate 24 to move rightwards along the slide rail 27, the nuts are accurately pushed into the opened movable door 13 from the discharge chute 26 and fall into the barrel 14, and batch nut precise feeding is realized.

[0029] Working principle: first, the barrel 14 is lifted to the galvanizing tank 1 above through the lifting rope 5, a set of movable door 13 is opened opposite the lower discharge chute 26 below, the servo motor 22 is started to drive the threaded sleeve 23 to rotate, the push plate 24 is pushed to move to the right along the slide rail 27, the nut is accurately pushed into the opened movable door 13 and falls into the barrel 14 from the discharge chute 26, batch nut precise feeding is realized, then the movable door 13 is closed, the winding shaft 4 is driven to rotate through the winding motor 3, the lifting rope 5 is lowered into the galvanizing tank 1, the barrel 14 is rotated at low speed through the bearing seat 9, so that the nut is uniformly immersed and plated in the galvanizing tank 1, when the immersion and plating are completed, the top cover 7 is horizontally pushed along the slide rail 27 to cover the top of the galvanizing tank 1, forming a closed space, then the used galvanizing liquid is discharged through the drain pipe 12, the barrel 14 is rotated at high speed again by starting the gear variable speed motor 18, centrifugal spinning is carried out in the closed space, liquid splashing is avoided, after completing the galvanizing and spinning process of a batch of rivet nuts, the top cover 7 is pulled away along the slide rail 27, then the winding shaft 4 is driven to rotate through the winding motor 3, the lifting rope 5 is lowered, the bottom end of the lifting rope 5 is connected and fixed with the hook 8, the barrel 14 is lifted away from the galvanizing tank 1 as a whole, so that the workpiece after galvanizing is moved out to the outside, facilitating manual discharge or replacing the next batch of rivet nuts.

[0030] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A device for galvanizing a rivet nut, comprising a galvanizing bath (1), characterized in that: The galvanizing tank (1) top two sides are fixedly connected with lifting frame (2), lifting frame (2) top fixedly connected with winch motor (3), the output shaft of winch motor (3) is fixedly connected with winch shaft (4), winch shaft (4) outside winding has lifting rope (5), the inner wall both sides of galvanizing tank (1) are movably connected with bearing seat (9), bearing seat (9) between transversely mounted with barrel (14), barrel (14) both ends are fixedly connected with hook (8), hook (8) one side is fixedly connected with rotary table (10), bearing seat (9) is provided with mounting groove (11), rotary table (10) is embedded in mounting groove (11), the left side of galvanizing tank (1) is provided with gear variable speed motor (18), the output shaft of gear variable speed motor (18) is fixedly connected with anti-rotation shaft (17), anti-rotation shaft (17) is fixedly connected to the rotary table (10) shaft of galvanizing tank (1) left side, the top of galvanizing tank (1) is provided with top cover (7).

2. The galvanizing device for a pull-rivet nut according to claim 1, wherein: The top cover (7) top two sides are fixedly connected with handle (6), the length and width of top cover (7) are greater than the diameter of barrel (14).

3. The galvanizing device for a pull nut according to claim 1, wherein: The bottom of lifting rope (5) is fixedly connected with a sinker, and the bottom of lifting rope (5) is fixedly connected with a sinker.

4. The galvanizing device for a pull nut according to claim 1, wherein: The top of galvanizing tank (1) is provided with two groups of parallel slide rails (27) for opening and closing the top cover (7).

5. The galvanizing device for a pull nut according to claim 1, wherein: The left side of galvanizing tank (1) is fixedly connected with water tank (16), and the left side of water tank (16) is fixedly connected with water pump (19), and the output end of water pump (19) is connected with water tank (1) through water inlet pipe (20).

6. The galvanizing device for a pull nut according to claim 1, wherein: The outer wall of barrel (14) is provided with uniformly distributed holes (15), and the right bottom of galvanizing tank (1) is provided with drain pipe (12).

7. The galvanizing device for a pull nut according to claim 1, wherein: The outer wall of lifting frame (2) is fixedly connected with fixed seat (21), the fixed seat (21) is fixedly connected with servo motor (22), the output shaft of servo motor (22) is fixedly connected with threaded rod (25), the threaded rod (25) is externally sleeved with threaded sleeve (23), the threaded sleeve (23) top is fixedly connected with push plate (24), the push plate (24) below is provided with discharge chute (26), the discharge chute (26) is fixed in lifting frame (2).

8. The galvanizing device for a pull nut according to claim 1, wherein: The outer left side of barrel (14) is provided with a movable door (13), one group of movable door (13) as a feeding port, one group of movable door (13) as a discharge port.