An oxidation protection device for galvanizing

Abstract

This utility model relates to the technical field of oxidation protection devices for galvanizing processes, and discloses an oxidation protection device for galvanizing processes. The device includes a body, with an air inlet pipe and an air outlet pipe fixedly installed on the side wall of the body. A drawer plate is driven to the inner wall of the body. This oxidation protection device allows the galvanized workpiece to be hoisted into the body using a lifting arm. With the lifting arm positioned appropriately, a motor starts, driving a lead screw to rotate, causing a slider to move on the surface of the lead screw. The left and right cover plates seal the arc surface of the lifting arm and simultaneously seal the upper surface of the body. A stacking block, in conjunction with a rubber strip, further seals the contact area between the left and right cover plates, ensuring that nitrogen gas is introduced into the body through the air inlet pipe and discharged through the air outlet pipe. This maintains the nitrogen concentration inside the body, ensuring effective oxidation protection during galvanizing.

Description

Technical Field

[0001] This utility model relates to the technical field of oxidation protection devices for galvanizing processes, specifically an oxidation protection device for galvanizing processes. Background Technology

[0002] Zinc plating is a surface treatment technique that involves coating the surface of metals, alloys, or other materials with a layer of zinc for aesthetic purposes, rust prevention, and other functions. The main method used is hot-dip galvanizing. Zinc is readily soluble in both acids and alkalis, hence it is called an amphoteric metal. Zinc hardly changes in dry air. After passivation treatment, dyeing, or application of a protective coating, the zinc plating can significantly improve its protective and decorative properties.

[0003] According to a public notice of an oxidation protection device for galvanizing (publication number: CN222100108U), under the action of a bidirectional threaded rod, two threaded rings can move simultaneously in the same or opposite directions to control the closing of the two moving plates. In addition, an auxiliary mechanism is provided to gradually reduce the temperature and dry the galvanized workpiece, and nitrogen is introduced into the protective box through an air inlet pipe to avoid the influence of oxygen on the workpiece.

[0004] However, in actual use, when the left and right cover plates move to seal the inside of the machine body, the left and right cover plates do not have corresponding sealing parts and have large gaps, which makes it easy for oxygen to enter the inside of the machine body, affecting the oxidation protection effect of galvanizing. In view of this, we propose an oxidation protection device for galvanizing. Utility Model Content

[0005] The purpose of this invention is to provide an oxidation protection device for galvanizing processes, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oxidation protection device for galvanizing, comprising a body, an air inlet pipe fixedly installed on the side wall of the body, an air outlet pipe fixedly installed on the side wall of the body, a drawer plate drivenly connected to the inner wall of the body, a closing mechanism provided inside the body, and a promoting mechanism provided inside the body, the closing mechanism comprising:

[0007] The motor is fixedly installed on the side wall of the machine body. A lead screw is fixedly installed at the output end of the motor. A slider is connected to the arc surface of the lead screw. A right cover plate is fixedly installed on the upper surface of the slider. A left cover plate is provided on the top of the machine body.

[0008] A stacked block is fixedly installed on the side wall of the left cover plate. A rubber strip is fixedly installed on the surface of the stacked block, and a sealing block is fixedly installed on the side wall of the left cover plate.

[0009] Preferably, the promoting mechanism includes an airbag, which is fixedly installed on the arc surface of the sealing block, and a semi-circular rubber ring is fixedly installed on the arc surface of the sealing block.

[0010] Preferably, the surface of the semi-circular rubber ring is provided with an arc-shaped groove, and the semi-circular rubber ring is fitted onto the arc surface of the airbag so that the semi-circular rubber ring can fully fit the arc surface of the boom.

[0011] Preferably, a support rod is fixedly installed on the inner wall of the machine body on the side away from the lead screw, and a moving block is provided on the arc surface of the support rod, so that the right cover plate can move stably on the upper surface of the machine body.

[0012] Preferably, a stacking block is fixedly installed on the surface of the right cover plate, and the stacking block on the left cover plate and the stacking block on the right cover plate are arranged to overlap vertically to ensure that the contact parts of the left cover plate and the right cover plate overlap and seal.

[0013] Preferably, the end of the lead screw away from the motor is rotatably connected to the inner wall of the machine body, thereby enabling the lead screw to rotate stably inside the machine body.

[0014] Preferably, there are two overlapping blocks, which are arranged in a mirror image on the side wall of the left cover plate to facilitate the overlap and sealing of the left cover plate with the right cover plate.

[0015] Compared with the prior art, this utility model provides an oxidation protection device for galvanizing, which has the following beneficial effects:

[0016] 1. This oxidation protection device for galvanizing processes, equipped with a closing mechanism, allows the galvanized workpiece to be hoisted into the machine body using a lifting arm. With the lifting arm positioned appropriately, the motor starts, driving the lead screw to rotate, causing the slider to move on the surface of the lead screw. The left and right cover plates seal the arc surface of the lifting arm and simultaneously seal the upper surface of the machine body. The overlapping blocks, in conjunction with rubber strips, further seal the contact area between the left and right cover plates, ensuring that nitrogen gas is introduced into the machine through the inlet pipe and discharged through the outlet pipe. This maintains the nitrogen concentration inside the machine body, ensuring effective oxidation protection during galvanizing.

[0017] 2. This oxidation protection device for galvanizing processes is equipped with a promoting mechanism and a sealing block to seal the arc surface of the boom. In addition, with the setting of a semi-circular rubber ring and an air bladder, the semi-circular rubber ring fits against the arc surface of the boom and squeezes the air bladder to ensure sealing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a partial exploded view of the structure of this utility model with the right cover plate.

[0020] Figure 3 This is a schematic diagram of the left cover plate of the present invention.

[0021] Figure 4 This is a schematic diagram of a partial explosion of the semi-circular rubber ring structure of this utility model.

[0022] In the diagram: 1. Body; 2. Intake pipe; 3. Closing mechanism; 301. Motor; 302. Lead screw; 303. Slider; 304. Right cover plate; 305. Left cover plate; 306. Stacking block; 307. Rubber strip; 308. Sealing block; 4. Promoting mechanism; 401. Airbag; 402. Semi-circular rubber ring; 5. Exhaust pipe; 6. Pull plate. Detailed Implementation

[0023] like Figures 1-4 As shown, this utility model provides a technical solution: an oxidation protection device for galvanizing, including a body 1, an air inlet pipe 2 fixedly installed on the side wall of the body 1, an air outlet pipe 5 fixedly installed on the side wall of the body 1, a draw plate 6 connected to the inner wall of the body 1, a closing mechanism 3 and a promoting mechanism 4 are provided inside the body 1, the closing mechanism 3 includes a motor 301, a lead screw 302, a slider 303, a right cover plate 304, a left cover plate 305, a stacking block 306, a rubber strip 307, and a sealing block 308.

[0024] In one embodiment of this utility model, a motor 301 is fixedly installed on the side wall of the machine body 1, a lead screw 302 is fixedly installed at the output end of the motor 301, a slider 303 is connected to the arc surface of the lead screw 302, a right cover plate 304 is fixedly installed on the upper surface of the slider 303, a left cover plate 305 is provided above the machine body 1, a stacking block 306 is fixedly installed on the side wall of the left cover plate 305, a rubber strip 307 is fixedly installed on the surface of the stacking block 306, and a sealing block 308 is fixedly installed on the side wall of the left cover plate 305.

[0025] In addition, the promoting mechanism 4 includes an airbag 401, which is fixedly installed on the arc surface of the sealing block 308. A semi-circular rubber ring 402 is fixedly installed on the arc surface of the sealing block 308. An arc-shaped groove is opened on the surface of the semi-circular rubber ring 402. The semi-circular rubber ring 402 is sleeved on the arc surface of the airbag 401 so that the semi-circular rubber ring 402 can fully fit the arc surface of the boom.

[0026] In this embodiment of the invention, a support rod is fixedly installed on the inner wall of the machine body 1 on the side away from the lead screw 302. A movable block is provided on the arc surface of the support rod, thereby allowing the right cover plate 304 to move stably on the upper surface of the machine body 1. A stacking block 306 is fixedly installed on the surface of the right cover plate 304. The stacking block 306 on the left cover plate 305 and the stacking block 306 on the right cover plate 304 are arranged vertically overlapping to ensure that the contact parts of the left cover plate 305 and the right cover plate 304 overlap and seal. The end of the lead screw 302 away from the motor 301 is rotatably connected to the inner wall of the machine body 1, thereby allowing the lead screw 302 to rotate stably inside the machine body 1. There are two overlapping blocks 306, which are mirror images of each other on the side wall of the left cover plate 305, so that the left cover plate 305 and the right cover plate 304 can overlap and seal. The lead screw 302 is a bidirectional threaded rod. The rotation of the lead screw 302 can drive the right cover plate 304 and the left cover plate 305 to move simultaneously. The slider 303 only moves in a straight line along the lead screw 302. The right cover plate 304 and the left cover plate 305 are mirror images of each other on the arc surface of the lead screw 302. The arc surface of the boom is cylindrical on one side. The two middle gaps of the sealing block 308 are adapted to the arc surface shape of the boom. The air bag 401 is filled with inert gas to reduce the influence of the external ambient temperature on the air bag 401. The drawer plate 6 is similar to a drawer and is set inside the machine body 1 to facilitate the collection and replacement of zinc liquid dripping from the arc surface of the processed part.

[0027] In this utility model, during use, the galvanized workpiece can be first hoisted into the machine body 1 using a crane arm. With the crane arm positioned appropriately, the motor 301 starts and drives the lead screw 302 to rotate, causing the slider 303 to move on the surface of the lead screw 302. The left cover plate 305 and the right cover plate 304 seal the arc surface of the crane arm and simultaneously seal the upper surface of the machine body 1. The overlapping block 306, in conjunction with the rubber strip 307, overlaps to form a seal at the contact portion between the left cover plate 305 and the right cover plate 304, thereby ensuring that the air inlet pipe 2 fills the interior with nitrogen and the air outlet pipe 5 discharges the gas, thus ensuring the nitrogen concentration inside the machine body 1 and ensuring the oxidation protection effect of the galvanizing process inside the machine body 1.

[0028] Furthermore, the sealing block 308 seals the arc surface of the boom. Secondly, with the setting of the semi-circular rubber ring 402 and the airbag 401, the semi-circular rubber ring 402 fits against the arc surface of the boom and squeezes the airbag 401 to ensure sealing.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An oxidation protection device for galvanizing, comprising a body (1), wherein an air inlet pipe (2) is fixedly installed on the side wall of the body (1), an air outlet pipe (5) is fixedly installed on the side wall of the body (1), and a drawer plate (6) is drivenly connected to the inner wall of the body (1), characterized in that: The body (1) is provided with a closing mechanism (3) inside, and the body (1) is provided with a promoting mechanism (4) inside. The closing mechanism (3) includes: The motor (301) is fixedly installed on the side wall of the machine body (1). A lead screw (302) is fixedly installed at the output end of the motor (301). A slider (303) is connected to the arc surface of the lead screw (302). A right cover plate (304) is fixedly installed on the upper surface of the slider (303). A left cover plate (305) is provided on the top of the machine body (1). A stacked block (306) is fixedly installed on the side wall of the left cover plate (305). A rubber strip (307) is fixedly installed on the surface of the stacked block (306), and a sealing block (308) is fixedly installed on the side wall of the left cover plate (305).

2. The oxidation protection device for galvanizing as described in claim 1, characterized in that: The promoting mechanism (4) includes an airbag (401), which is fixedly installed on the arc surface of the sealing block (308), and a semi-circular rubber ring (402) is fixedly installed on the arc surface of the sealing block (308).

3. The oxidation protection device for galvanizing according to claim 2, characterized in that: The surface of the semi-circular rubber ring (402) is provided with an arc-shaped groove, and the semi-circular rubber ring (402) is sleeved on the arc surface of the airbag (401).

4. The oxidation protection device for galvanizing according to claim 1, characterized in that: A support rod is fixedly installed on the inner wall of the machine body (1) on the side away from the lead screw (302), and a moving block is provided on the arc surface of the support rod.

5. The oxidation protection device for galvanizing according to claim 1, characterized in that: The surface of the right cover plate (304) is fixedly installed with a stacking block (306), and the stacking block (306) on the left cover plate (305) and the stacking block (306) on the right cover plate (304) are arranged to overlap vertically.

6. The oxidation protection device for galvanizing according to claim 1, characterized in that: The end of the lead screw (302) away from the motor (301) is rotatably connected to the inner wall of the machine body (1).

7. The oxidation protection device for galvanizing according to claim 1, characterized in that: The number of the stacked blocks (306) is set to two, and the two stacked blocks (306) are arranged in a mirror image on the side wall of the left cover plate (305).

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