A galvanizing drying device for metal surface treatment

Abstract

The utility model discloses a kind of metal surface treatment galvanization drying devices, it is related to metal material surface treatment technical field, including the outer box of one side being provided with hot blast equipment, the connecting assembly of uniformly spaced setting is provided in outer box inner wall, connecting assembly top is set with the article tray, connecting assembly bottom is provided with ventilation bin, ventilation bin is connected with hot blast equipment through connecting pipe across outer box, ventilation bin includes the upper shell of being fixedly installed with connecting assembly and the telescopic bag of being arranged in upper shell bottom, wherein the surface of upper shell is provided with through-hole, telescopic bag is made of aramid material and has downward extensibility, the mode that ventilation bin connects hot blast equipment makes hot blast can be discharged directly contacting workpiece through ventilation bin, reduce the moving path of hot blast and shorten the distance between workpiece and hot blast, optimize drying effect while ensuring the drying speed of workpiece during drying process is uniform, simultaneously, outer box does not need to reserve the flow space of hot blast in, thus more workpieces can be placed in outer box.

Description

Technical Field

[0001] This utility model relates to the field of metal material surface treatment technology, and in particular to a metal surface treatment zinc plating drying device. Background Technology

[0002] The main purpose of galvanizing is to make the material have better anti-corrosion and anti-rust effects. During the galvanizing process, moisture will remain on the metal surface. If the moisture is not dried in time, it will react with the zinc layer or the metal substrate, resulting in oxidation or white rust, which will affect the protective performance and appearance of the galvanized layer.

[0003] Larger workpieces are typically dried using tunnel drying equipment or large drying chambers, while smaller workpieces are generally dried using drying ovens. When operating, the drying oven delivers hot air, usually through one or more outlets at specific locations. To ensure a consistent drying process between workpieces near the outlet and those further away, a certain amount of space is reserved within the drying oven for hot air circulation. This space occupies a significant portion of the workpiece storage area, resulting in the drying oven processing only a smaller number of workpieces per use. Furthermore, workpieces closer to the hot air outlet may dry prematurely, leading to differences in quality between workpieces from the same batch. Utility Model Content

[0004] To address the aforementioned problems, the present invention aims to provide a metal surface treatment galvanizing drying device that solves the problem of limited space for placing workpieces inside the drying oven, and also solves the problem of differences in drying effect caused by the difference in distance between the workpiece and the hot air outlet.

[0005] The technical solution of this utility model is: a metal surface treatment galvanizing drying device, including an outer box with a hot air device on one side, connecting components evenly spaced on the inner wall of the outer box, a storage tray on the top of the connecting components, a ventilation chamber at the bottom of the connecting components, and the ventilation chamber connected to the hot air device through a connecting pipe passing through the outer box.

[0006] The ventilation chamber includes an upper shell fixedly installed with the connecting assembly and a telescopic bag disposed at the bottom of the upper shell, wherein the surface of the upper shell has through holes, and the telescopic bag is woven from aramid material and has downward extensibility.

[0007] Furthermore, the connecting components are arranged in pairs, with several groups of connecting components vertically distributed on the inner wall of the outer casing. The distance between the connecting components is greater than the height of the telescopic bag in its expanded state, ensuring the smooth placement of the storage tray and preventing friction between the telescopic bag and the workpiece when it is placed.

[0008] Furthermore, the top of the connecting component is provided with a sliding groove, and a gap is left between the sliding groove and the ventilation chamber. The storage tray is slidably connected to the connecting component through the sliding groove. When placing a workpiece on the surface of the storage tray, it can be placed on the top of the connecting component through the sliding groove, which facilitates the placement of the workpiece.

[0009] Furthermore, the through holes on the top of the ventilation chamber are distributed in a rectangular array. The diameter of the through holes gradually increases from the side connected to the hot air equipment to the other side. The surface of the through holes is covered with a metal mesh to ensure that the air can be discharged evenly. The metal mesh does not completely block the through holes, so that pressure is generated inside the ventilation chamber when air is discharged through the through holes.

[0010] Furthermore, when the telescopic bags at the bottom of each pair of adjacent connecting components are in the expanded state, there is a gap between them and the storage tray on the top of the connecting component on the bottom side, so as to avoid excessive contact between the telescopic bags and the workpieces placed on the surface of the storage tray after the telescopic bags are inflated.

[0011] Furthermore, the top of the connecting component near the storage tray has a smooth chamfer that extends into the groove, facilitating the placement of the storage tray.

[0012] Furthermore, the upper shell of the ventilation chamber is made of rigid heat-resistant plastic.

[0013] Furthermore, the tray is a grid-shaped tray to ensure that the workpiece can receive hot air to the maximum extent.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model connects the hot air equipment to the ventilation chamber, allowing the hot air to be discharged through the ventilation chamber and directly contact the workpiece. This reduces the movement path of the hot air and shortens the distance between the workpiece and the hot air, optimizing the drying effect while ensuring a uniform drying speed for the workpiece during the drying process. At the same time, there is no need to reserve space for the flow of hot air inside the outer box, so more workpieces can be placed inside the outer box.

[0016] 2. This utility model also uses a metal mesh to cover the through holes on the surface of the ventilation chamber, so that the through holes are subject to movement resistance when exhausting air outward. This resistance increases the pressure inside the ventilation chamber, causing the telescopic bag to inflate. After the telescopic bag inflates under pressure, some hot air will be discharged outward through the telescopic bag due to its own material properties. At the same time, the inflated telescopic bag will be close to the storage tray below, and the hot air discharged from the telescopic bag can directly contact the workpiece at close range, optimizing the drying effect. Moreover, even if the telescopic bag comes into contact with the workpiece after inflating, it will not affect the normal drying of the workpiece. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the position and structure of the connecting component of this utility model;

[0019] Figure 3 This is a schematic diagram of the expansion of the telescopic bag structure of this utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of the ventilation chamber of this utility model.

[0021] Reference numerals: 1. Outer casing; 2. Connecting assembly; 3. Storage tray; 4. Ventilation chamber; 41. Upper shell; 42. Telescopic bag; 43. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] like Figure 1-4 As shown, a metal surface treatment galvanizing drying device includes an outer casing 1 with a hot air device on one side. Connecting components 2 are evenly spaced on the inner wall of the outer casing 1. A tray 3 is placed on the top of the connecting components 2. A smooth chamfer is provided on the side of the top of the connecting components 2 near the tray 3, and the smooth chamfer extends to the slide groove to facilitate the placement of the tray 3. A ventilation chamber 4 is provided at the bottom of the connecting components 2. The ventilation chamber 4 is connected to the hot air device through the outer casing 1 via a connecting pipe. A slide groove is provided on the top of the connecting components 2, and a gap is left between the slide groove and the ventilation chamber 4. The tray 3 is slidably connected to the connecting components 2 through the slide groove. When placing a workpiece on the surface of the tray 3, it can be placed on the top of the connecting components 2 through the slide groove to facilitate the placement of the workpiece. The tray 3 is a grid-shaped tray to ensure that the workpiece can receive hot air to the maximum extent.

[0024] The ventilation chamber 4 includes an upper shell 41 fixedly installed with the connecting components 2, ensuring that the upper shell 41 can still maintain its shape under high temperature conditions. The upper shell 41 of the ventilation chamber 4 is made of rigid heat-resistant plastic, and a telescopic bag 42 is set at the bottom of the upper shell 41. There are several sets of connecting components 2 in pairs, and the sets of connecting components 2 are vertically distributed on the inner wall of the outer casing 1. The distance between the connecting components 2 is greater than the height of the telescopic bag 42 in the expanded state, ensuring the smooth placement of the tray 3 and avoiding friction of the telescopic bag 42 when placing the workpiece. The telescopic bag 42 at the bottom of every two adjacent connecting components 2 is connected to the bottom side of the connecting group in the expanded state. There is a gap between the storage trays 3 on the top of component 2 to prevent the telescopic bag 42 from inflating and making excessive contact with the workpieces placed on the surface of the storage trays 3. The surface of the upper shell 41 has through holes 43. The through holes 43 on the top of the ventilation chamber 4 are distributed in a rectangular array. The diameter of the through holes 43 gradually increases from the side connected to the hot air equipment to the other side. The surface of the through holes 43 is covered with metal mesh to ensure that the air can be evenly exhausted from the through holes 43. The metal mesh does not completely block the through holes 43, so that the ventilation chamber 4 generates internal pressure when exhausting air through the through holes 43. The telescopic bag 42 is woven from aramid material and has downward extensibility.

[0025] The working principle of this utility model is as follows: First, the operator places the workpiece on the surface of the placement tray 3. Then, the placement tray 3 containing the workpiece is placed on top of the connecting assembly 2 along the slide groove. After placement, the outer casing 1 is closed. After the outer casing 1 is closed, the hot air equipment is started. Hot air enters the ventilation chambers 4 in each connecting assembly 2 through the pipes. The hot air in the ventilation chamber 4 is first discharged outward along the through hole 43. During the discharge process, the metal mesh blocks and softens the hot air to a certain extent, so that the hot air discharged from the through hole 43 is evenly distributed. After the hot air is discharged, it moves upward directly to act as a heat exchanger. The workpiece bottom is dried in the storage tray 3. At the same time, the hot air in the ventilation chamber 4 is resisted during the exhaust process, which causes the internal air pressure to increase. As the air pressure increases, the telescopic bag 42 inflates. Some of the hot air passes through the telescopic bag 42 under the action of air pressure. At this time, the telescopic bag 42 inflates and approaches the lower storage tray 3. The hot air discharged through the telescopic bag 42 will directly act on the surface of the workpiece placed in the lower storage tray 3, so that both the upper and lower sides of the workpiece can be dried by hot air. It also shortens the movement path of the hot air and increases the space inside the outer box 1 where the workpiece can be placed.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A metal surface treatment galvanizing drying device, comprising an outer casing (1) with a hot air device on one side, characterized in that: The inner wall of the outer casing (1) is evenly spaced with connecting components (2), a storage tray (3) is placed on the top of the connecting components (2), and a ventilation chamber (4) is provided at the bottom of the connecting components (2). The ventilation chamber (4) is connected to the hot air equipment through the connecting pipe passing through the outer casing (1). The ventilation chamber (4) includes an upper shell (41) fixedly installed with the connecting component (2) and a telescopic bag (42) disposed at the bottom of the upper shell (41), wherein the surface of the upper shell (41) is provided with a through hole (43) and the telescopic bag (42) is woven from aramid material and has downward extensibility.

2. The metal surface treatment galvanizing drying device according to claim 1, characterized in that: The connecting components (2) are in groups of two, and there are several groups of connecting components (2) vertically distributed on the inner wall of the outer box (1). The distance between the connecting components (2) is greater than the height of the telescopic bag (42) in its expanded state.

3. The metal surface treatment galvanizing drying device according to claim 1, characterized in that: The top of the connecting component (2) is provided with a sliding groove, and there is a gap between the sliding groove and the ventilation chamber (4). The storage tray (3) is slidably connected to the connecting component (2) through the sliding groove.

4. The metal surface treatment galvanizing drying device according to claim 1, characterized in that: The through holes (43) at the top of the ventilation chamber (4) are arranged in a rectangular array. The diameter of the through holes (43) gradually increases from one side connected to the hot air equipment to the other side. The surface of the through holes (43) is covered with metal mesh.

5. A metal surface treatment galvanizing drying device according to claim 2, characterized in that: In the relaxed state, the telescopic bag (42) provided at the bottom of each pair of adjacent connecting components (2) leaves a gap between it and the storage tray (3) erected on the top of the bottom side connecting component (2).

6. The metal surface treatment galvanizing drying device according to claim 3, characterized in that: The top of the connecting component (2) near the side of the storage tray (3) is provided with a smooth chamfer, which extends to the groove.

7. The metal surface treatment galvanizing drying device according to claim 1, characterized in that: The upper shell (41) of the ventilation chamber (4) is made of rigid heat-resistant plastic to ensure that the upper shell (41) can still maintain its shape at high temperatures.

8. The metal surface treatment galvanizing drying device according to claim 1, characterized in that: The storage tray (3) is a grid-shaped tray.

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