Surface hot galvanizing device for screw production

By designing the hydraulic cylinder, stirring mechanism, and recycling structure inside the box, the problem of zinc liquid recovery in the hot-dip galvanizing device for screw production was solved, realizing the improvement of screw galvanizing efficiency and the effective recycling of zinc liquid.

CN224133148UActive Publication Date: 2026-04-17WEIFANG HUAMEI STANDARD PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WEIFANG HUAMEI STANDARD PARTS CO LTD
Filing Date
2025-05-22
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing hot-dip galvanizing equipment for screw production is difficult to effectively recover molten zinc, resulting in resource waste and inconvenient disposal.

Method used

A hot-dip galvanizing device for screw production was designed, comprising a housing, a hydraulic cylinder, a stirring mechanism, a recycling structure, and a drying mechanism. The hydraulic cylinder drives the housing to rise and fall to immerse it in molten zinc. Stirring is achieved using stirring blades and heating wires. After galvanizing, the screws are dried using the drying mechanism. The recycling structure filters and recycles the molten zinc through a filter box and a ball valve.

Benefits of technology

This technology improves the zinc plating effect of screws, increases the efficiency of zinc plating and drying, and facilitates the reuse of zinc liquid through a recycling structure, thus solving the problem of zinc liquid recycling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a surface hot galvanizing device for screw production. The surface hot galvanizing device comprises a box body, a workbench is installed at the top end of the box body, a recovery structure comprises a guide pipe installed at the bottom end of one side of a shell, a valve body is installed on one side of the guide pipe, and a filter box is installed on one side of the valve body. The guide pipe is installed at the bottom end of one side of the shell, the hand wheel can be rotated to drive the ball valve to rotate, molten zinc can pass through the channel in the middle of the ball valve, and when the molten zinc needs to be recycled and discharged, the ball valve is rotated to enable the channel to be parallel to the guide pipe, so that the molten zinc can pass through the channel and enter the filter box before being discharged; according to the surface hot galvanizing device for screw production, zinc liquid can be filtered through the filter screen in the filter box, the filtered zinc liquid can be discharged through the outlet to be recycled, the cover body and the filter box form a clamping structure, the cover body can be detached when needed, the filter screen and the filter box can be treated, and therefore the purpose that the zinc liquid can be recycled conveniently through the surface hot galvanizing device for screw production is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of screw manufacturing technology, and in particular to a hot-dip galvanizing device for screw manufacturing. Background Technology

[0002] Screws are threaded tools that use the principle of inclined plane rotation and friction to fasten devices. They are commonly used to connect or fix objects. When processing screws, a hot-dip galvanizing device is needed for screw production. Galvanizing refers to a surface treatment technology that coats the surface of metals, alloys, or other materials with a layer of zinc for aesthetic purposes, rust prevention, etc. The main method used is hot-dip galvanizing. A hot-dip galvanizing device for screws is a device used to coat the surface of screws with a layer of zinc to improve their corrosion resistance and appearance.

[0003] To address this, patent publication CN213866466U discloses a surface electroplating zinc device for screw production, comprising a fixed frame, a material box, and a storage box. A steel cable is mounted on one side of an electric winch on the fixed frame. A guide hole is provided on the side plate of the storage box. One end of the steel cable is hooked to the storage box via a hook. A base plate is connected to the bottom of the fixed frame, and the material box is mounted on the base plate via a rotating bearing. A drain outlet is provided on one side of the material box, and a motor is fixedly mounted on one side of the fixed frame. A transmission gear is fixedly connected to the output shaft of the motor, and the transmission gear meshes with the external gear ring of the rotating bearing. This invention uses an electric winch to lift and move the storage box hooked by the hook, while simultaneously using a motor to drive the material box to rotate. The rotating material box agitates, and combined with the vertically movable storage box, the screws inside can undergo thorough surface treatment, thereby improving processing quality.

[0004] The aforementioned surface electroplating zinc device for screw production proposes that an electric winch is used to lift and move the storage box hooked by the hook, while a motor drives the material box to rotate. The rotating material box causes the liquid to slosh around, and in conjunction with the vertically movable storage box, the screws inside can be fully surface-treated, thereby improving the processing quality. However, after the screws are galvanized, the zinc liquid needs to be recycled and reused. During the zinc liquid recycling process, it needs to be filtered. Summary of the Invention

[0005] The purpose of this invention is to provide a hot-dip galvanizing device for screw production, which solves the problem that existing hot-dip galvanizing devices for screw production are difficult to recycle molten zinc.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hot-dip galvanizing device for screw production, comprising a housing;

[0007] A workbench is installed at the top of the box, and a bracket is installed at the top of the workbench. A hydraulic cylinder is installed at the top of the bracket.

[0008] A mounting block is installed at the bottom of the hydraulic cylinder, a box is installed at the bottom of the mounting block, a shell is installed at the top of the workbench, and a recycling structure is installed at the bottom of one side of the shell.

[0009] The recycling structure includes a conduit installed at the bottom of one side of the outer shell, a valve body installed on one side of the conduit, and a filter box installed on one side of the valve body.

[0010] In use, the screws are first inserted into the box, and then the molten zinc is poured into the outer shell. The hydraulic cylinder will lift the box, immersing it in the molten zinc inside the outer shell. The molten zinc enters the box through the through-hole to galvanize the screws. The rotating agitator will also stir the screws, and the heating wire will continuously heat the inside of the outer shell to prevent the molten zinc from solidifying.

[0011] Furthermore, a heating wire is provided inside the outer casing. The heating wire is S-shaped and can heat the inside of the outer casing.

[0012] Furthermore, a handwheel is installed at the top of the valve body, a ball valve is installed inside the valve body, and a channel is provided inside the ball valve. A cover is installed at the top of the filter box, a filter screen is installed inside the filter box, and an outlet is installed on one side of the filter box. The recovery structure can recover the zinc liquid.

[0013] Furthermore, the top of the filter box is provided with a slot, and the bottom of the cover is provided with a locking block. The filter box and the cover form a locking structure, which facilitates disassembly.

[0014] Furthermore, the box body has through holes arranged at equal intervals inside, allowing molten zinc to enter the box body through these holes.

[0015] Furthermore, a stirring mechanism is installed inside the box. The stirring mechanism includes a servo motor installed on one side of the box, a stirring shaft installed on one side of the servo motor, and stirring blades installed on the outside of the stirring shaft. The stirring mechanism can stir the screws inside the box.

[0016] Furthermore, a drying mechanism is installed on both sides of the top of the mounting block. The drying mechanism includes a wind box installed on the top of the mounting block, a hole provided at the top of the wind box, a fan installed inside the wind box, a filter element installed inside the wind box, and an air outlet installed at the bottom of the wind box. The drying mechanism can dry the screws.

[0017] The advantages of the hot-dip galvanizing device for screw production provided by this utility model are: during use, the screws can be stirred by a stirring mechanism, which can improve the galvanizing effect; the galvanized screws can be dried by a drying mechanism; and the zinc liquid can be recycled by a recycling structure.

[0018] By installing a conduit at the bottom of one side of the outer casing, the ball valve can be rotated by turning the handwheel. The molten zinc can pass through the channel in the middle of the ball valve. When it is necessary to recover and discharge the molten zinc, rotate the ball valve to make the channel and the conduit parallel, and the molten zinc can pass through the channel. Before being discharged, the molten zinc will enter the filter box. The filter screen inside the filter box can filter the molten zinc. The filtered molten zinc can be discharged through the outlet for recovery. The cover and the filter box form a locking structure. When necessary, the cover can be removed to process the filter screen and the filter box. This achieves the purpose of facilitating the recovery of molten zinc in the hot-dip galvanizing device for screw production.

[0019] By installing a servo motor on one side of the box, the servo motor drives the stirring shaft to rotate, which in turn drives the stirring blades to rotate. When the stirring blades rotate, the screws inside the box are stirred, making the efficiency of screw galvanizing and air drying higher. This achieves the goal of making the hot-dip galvanizing device for screw production easier to improve the efficiency of screw galvanizing. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a frontal cross-sectional view of the present invention.

[0022] Figure 3 For the present utility model Figure 2 Enlarged cross-sectional view of a portion of point A in the middle section;

[0023] Figure 4 This is a partial front view cross-sectional structural diagram of the air-drying mechanism of this utility model;

[0024] Figure 5 This is a partial frontal cross-sectional view of the recycling structure of this utility model.

[0025] The following are the annotations in the diagram: 1. Support; 2. Outer shell; 3. Heating wire; 4. Workbench; 5. Box; 6. Recycling structure; 601. Conduit; 602. Valve body; 603. Handwheel; 604. Ball valve; 605. Channel; 606. Cover; 607. Filter box; 608. Filter screen; 609. Outlet; 7. Box body; 8. Through hole; 9. Mounting block; 10. Drying mechanism; 1001. Air box; 1002. Fan; 1003. Hole; 1004. Filter element; 1005. Air outlet; 11. Hydraulic cylinder; 12. Stirring mechanism; 1201. Servo motor; 1202. Stirring shaft; 1203. Stirring blade. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 One embodiment of this utility model is a hot-dip galvanizing device for screw production, comprising a housing 5.

[0028] A workbench 4 is installed on the top of the housing 5, and a bracket 1 is installed on the top of the workbench 4. A hydraulic cylinder 11 is installed on the top of the bracket 1.

[0029] A mounting block 9 is installed at the bottom of the hydraulic cylinder 11. A drying mechanism 10 is installed on both sides of the top of the mounting block 9. The drying mechanism 10 includes a wind box 1001 installed at the top of the mounting block 9. A hole 1003 is provided at the top of the wind box 1001. A fan 1002 is installed inside the wind box 1001. A filter element 1004 is installed inside the wind box 1001. An air outlet 1005 is installed at the bottom of the wind box 1001.

[0030] See attached document Figure 1-2 and attached Figure 4As shown, screws can be installed inside the box 7, and then molten zinc can be poured into the outer shell 2. The operation of the hydraulic cylinder 11 will drive the box 7 to rise and fall, immersing the box 7 into the molten zinc inside the outer shell 2. The molten zinc enters the box 7 through the through hole 8 to galvanize the screws. The rotating stirring blade 1203 will also stir the screws. The heating wire 3 can continuously heat the inside of the outer shell 2 to prevent the molten zinc from solidifying. After galvanizing, the operation of the hydraulic cylinder 11 will drive the box 7 to rise away from the molten zinc. Then, the blower 1002 inside the air box 1001 will blow air through the air outlet 1005. The blown air can speed up the drying efficiency of the screws. The filter element 1004 can filter the blown air to prevent dust from blowing onto the screws.

[0031] The bottom of the mounting block 9 is fitted with a box 7, and the inside of the box 7 is provided with through holes 8, which are arranged at equal intervals inside the box 7.

[0032] The box body 7 is equipped with a stirring mechanism 12. The stirring mechanism 12 includes a servo motor 1201 installed on one side of the box body 7, a stirring shaft 1202 installed on one side of the servo motor 1201, and a stirring blade 1203 installed on the outside of the stirring shaft 1202.

[0033] See attached document Figure 1-3 As shown, the servo motor 1201 will drive the stirring shaft 1202 to rotate, and the rotation of the stirring shaft 1202 will drive the stirring blade 1203 to rotate. When the stirring blade 1203 rotates, it can stir the screws inside the box 7, making the galvanizing and drying of the screws more efficient.

[0034] The top of the workbench 4 is equipped with a housing 2, and a heating wire 3 is installed inside the housing 2. The heating wire 3 is shaped like an "S".

[0035] A recycling structure 6 is installed at the bottom of one side of the outer casing 2. The recycling structure 6 includes a conduit 601 installed at the bottom of one side of the outer casing 2, a valve body 602 installed on one side of the conduit 601, a handwheel 603 installed at the top of the valve body 602, a ball valve 604 installed inside the valve body 602, and a channel 605 provided inside the ball valve 604. A cover 606 is installed at the top of the filter box 607, a filter screen 608 is installed inside the filter box 607, and an outlet 609 is installed on one side of the filter box 607.

[0036] A filter box 607 is installed on one side of the valve body 602. A slot is provided at the top of the filter box 607 and a locking block is provided at the bottom of the cover 606. The filter box 607 and the cover 606 form a locking structure.

[0037] See attached document Figure 1-2 and attached Figure 5As shown, the ball valve 604 is spherical in shape. It can be rotated by rotating the handwheel 603. The zinc liquid can pass through the channel 605 in the middle of the ball valve 604. When the ball valve 604 is rotated, the channel 605 is perpendicular to the conduit 601, and the ball valve 604 will block the valve body 602. When the zinc liquid needs to be recovered and discharged, the ball valve 604 is rotated so that the channel 605 is parallel to the conduit 601, and the zinc liquid can pass through the channel 605. Before being discharged, the zinc liquid will enter the filter box 607. The filter screen 608 inside the filter box 607 can filter the zinc liquid. The filtered zinc liquid can be discharged through the outlet 609 for recovery. The cover 606 and the filter box 607 form a locking structure. When needed, the cover 606 can be removed to process the filter screen 608 and the filter box 607. The filter screen 608 is L-shaped. When the filter screen 608 is removed, the impurities filtered inside the filter box 607 can be taken out.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hot-dip galvanizing apparatus for screw production, comprising a housing (5); Its features are: The top of the box (5) is equipped with a workbench (4), and the top of the workbench (4) is equipped with a bracket (1), and the top of the bracket (1) is equipped with a hydraulic cylinder (11). The bottom end of the hydraulic cylinder (11) is equipped with a mounting block (9), the bottom end of the mounting block (9) is equipped with a box (7), the top end of the workbench (4) is equipped with a shell (2), and the bottom end of one side of the shell (2) is equipped with a recycling structure (6). The recycling structure (6) includes a conduit (601) installed at the bottom of one side of the outer shell (2), a valve body (602) installed on one side of the conduit (601), and a filter box (607) installed on one side of the valve body (602).

2. The apparatus for surface galvanizing of screws according to claim 1, characterized in that: The housing (2) is provided with a heating wire (3) inside, and the heating wire (3) is in the shape of an "S".

3. The apparatus for surface galvanizing of screws according to claim 1, characterized in that: A handwheel (603) is installed at the top of the valve body (602), a ball valve (604) is installed inside the valve body (602), and a channel (605) is provided inside the ball valve (604). A cover (606) is installed at the top of the filter box (607), a filter screen (608) is installed inside the filter box (607), and an outlet (609) is installed on one side of the filter box (607).

4. The apparatus for surface galvanizing of screws according to claim 3, characterized in that: The filter box (607) has a slot at the top and the cover (606) has a block at the bottom, forming a locking structure.

5. The apparatus for surface galvanizing of screws according to claim 1, characterized in that: The box body (7) has through holes (8) inside, and the through holes (8) are arranged at equal intervals inside the box body (7).

6. The apparatus for surface galvanizing of screws according to claim 1, characterized in that: The box (7) is equipped with a stirring mechanism (12). The stirring mechanism (12) includes a servo motor (1201) installed on one side of the box (7), a stirring shaft (1202) installed on one side of the servo motor (1201), and a stirring blade (1203) installed on the outside of the stirring shaft (1202).

7. The apparatus for surface galvanizing of screws according to claim 1, characterized in that: Drying mechanisms (10) are installed on both sides of the top of the mounting block (9). The drying mechanism (10) includes a wind box (1001) installed on the top of the mounting block (9), a hole (1003) provided on the top of the wind box (1001), a fan (1002) installed inside the wind box (1001), a filter element (1004) installed inside the wind box (1001), and an air outlet (1005) installed at the bottom of the wind box (1001).

Citation Information

Patent Citations

  • Surface electrogalvanizing device for screw production

    CN213866466U