A drying device for continuous electroplating of a material belt

Abstract

The utility model relates to electroplating processing technical field, concretely is a kind of drying device for material belt continuous electroplating, including machine table and install the drying bin in machine table top, drying bin one side is equipped with exhaust fan, hollow feeding roller and hollow lifting roller that are connected with the exhaust fan air outlet are installed in the inside of drying bin, the hollow feeding roller is located at drying bin entrance, and hollow feeding roller is sleeved with air blowing guide component, hollow lifting roller surface is equipped with exhaust mesh, by the hollow feeding roller and hollow lifting roller design into hollow structure, and by exhaust fan, hot air in drying bin is sent, the air blowing guide component on hollow feeding roller guides hot air to the side where material belt enters, forms the relative air blowing force, carries out preliminary drying and orientation to material band surface, at the same time, when hollow lifting roller surface is spread exhaust mesh air blowing, the exhaust groove of air guide sleeve uniformly sprays hot air upwards.

Description

Technical Field

[0001] This utility model relates to the field of electroplating technology, specifically to a drying device for continuous electroplating of material strips. Background Technology

[0002] On a continuous electroplating production line, the surface of the electroplated strip is covered with a large amount of electroplating solution. It must undergo efficient and uniform drying treatment to prevent residual droplets from causing water stains, oxidation, corrosion or affecting subsequent processes. Therefore, the drying device is a key piece of equipment in this type of production line.

[0003] Traditional hot air drying often uses fixed hot air nozzles or outlets to blow hot air parallel to the surface of the conveyor belt from one or both sides. This air delivery method easily creates dead air zones or uneven air distribution areas on the surface of the conveyor belt, especially for wide conveyor belts, conveyor belts with complex surface structures, or high-speed conveyor belts. At the same time, high-speed conveyor belts are prone to shaking or deviation. Traditional support rollers only play a role in transmission or support and cannot actively suppress the instability of the conveyor belt. When a wet conveyor belt passes over the roller surface, liquid or impurities may accumulate on the roller surface. Long-term operation can easily corrode the roller body or contaminate the back of the conveyor belt.

[0004] Therefore, a drying device for continuous electroplating of material strips is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a drying device for continuous electroplating of material strips, 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:

[0007] A drying device for continuous electroplating of material strips includes a machine base and a drying chamber installed on the top of the machine base. An exhaust fan is installed on one side of the drying chamber. A hollow feed roller and a hollow lifting roller connected to the exhaust port of the exhaust fan are installed inside the drying chamber. The hollow feed roller is located at the entrance of the drying chamber and is fitted with an air blowing guide assembly. An exhaust mesh is opened on the surface of the hollow lifting roller. A support frame is fixedly connected inside the drying chamber. An air guide sleeve is installed on the top of the support frame and fitted outside the hollow lifting roller. An exhaust groove is opened on the top of the air guide sleeve. A drive motor connected to one end of the hollow feed roller is installed on the drying chamber. A pair of transmission belts are installed between the hollow feed roller and the hollow lifting roller. Multiple baffles are fixedly connected to the outside of the transmission belts.

[0008] Preferably, a blower is installed on the top of the inner wall of the drying chamber, and the hollow lifting roller is located below the blower.

[0009] Preferably, the air blowing guide assembly includes a pair of air blowing sleeves fixedly sleeved on the hollow feed roller, and each of the two air blowing sleeves has an annular air outlet at one of its opposite ends.

[0010] Preferably, the hollow feed roller is provided with an adsorption layer, which is located between the two blowing sleeves.

[0011] Preferably, a sealing cover is installed on the outside of the drying chamber, one end of the hollow lifting roller and the hollow feeding roller are both located inside the sealing cover, and a conveying pipe is installed between the air outlet of the exhaust fan and the sealing cover.

[0012] Preferably, the exhaust mesh holes on the surface of the hollow lifting roller are arranged in sections, and the density of the exhaust mesh holes in the middle area of ​​the hollow lifting roller is greater than the density of the exhaust mesh holes in the two side areas.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, the hollow feed roller and hollow support roller are designed with a hollow structure. Hot air from the drying chamber is introduced by an exhaust fan, and the air blowing guide component on the hollow feed roller guides the hot air to the side where the material belt enters, forming a relative blowing force to initially dry and guide the surface of the material belt. At the same time, when the exhaust mesh holes covering the surface of the hollow support roller blow air, the exhaust groove of the air guide sleeve sprays hot air upwards evenly to dry the lower surface of the material belt. In the area in contact with the support surface, the hot air sprayed through the micro-holes forms an air cushion, reducing the contact area between the material belt and the roller surface. This solves the problem of airflow dead zones caused by traditional single-sided or parallel air supply, ensuring that both the upper and lower surfaces of the material belt receive uniform and effective hot air coverage. During operation, the transmission belt can use turbulence blades to disperse any eddies that may be formed, promoting the orderly flow and full mixing of airflow in the drying chamber, and improving heat transfer efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the drying chamber in this utility model;

[0017] Figure 3 This is a schematic diagram of the transmission of the hollow feed roller and the hollow lifting roller in this utility model;

[0018] Figure 4 This is a schematic diagram of the hollow feed roller in this utility model.

[0019] In the diagram: 1. Machine base; 2. Drying chamber; 201. Support frame; 202. Air guide sleeve; 203. Exhaust duct; 204. Sealing cover; 3. Exhaust fan; 301. Conveying pipe; 4. Hollow feed roller; 401. Transmission belt; 402. Turbidator blades; 403. Adsorption layer; 5. Hollow lifting roller; 501. Exhaust mesh; 6. Air blowing guide assembly; 601. Air blowing sleeve; 602. Annular air outlet; 7. Drive motor; 8. Air blower. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings, which illustrate several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Example: Please refer to Figure 1-4The drying device for continuous electroplating of material strips shown includes a machine base 1 and a drying chamber 2 installed on the top of the machine base 1. The inlet and outlet of the drying chamber 2 are located at its two ends for the material strip to pass through. An exhaust fan 3 is installed on one side of the drying chamber 2. A hollow feed roller 4 and a hollow lifting roller 5, which are connected to the exhaust port of the exhaust fan 3, are installed inside the drying chamber 2. Both have cavities inside to receive hot air drawn from the drying chamber 2 by the exhaust fan 3. The hollow feed roller 4 is located at the inlet of the drying chamber 2, and a blowing guide assembly 6 is sleeved on the hollow feed roller 4. The blowing guide assembly 6 blows the pressurized hot air inside the hollow feed roller 4 towards the material strip from two directions, forming a directionally controllable hot air blowing force. This hot air first performs preliminary drying on the upper surface of the material strip, and at the same time plays a role in guiding and stabilizing the material strip to prevent it from drifting or deviating. The surface of the hollow lifting roller 5 is provided with exhaust mesh holes 501. An internal fixed support frame 201 is connected, and an air guide sleeve 202 is installed on the top of the support frame 201 and sleeved outside the hollow lifting roller 5. An exhaust trough 203 is opened on the top of the air guide sleeve 202. A drive motor 7 connected to one end of the hollow feeding roller 4 is installed on the drying chamber 2. One end of the hollow feeding roller 4 is connected to the drive motor 7 through a coupling and is driven to rotate by the drive motor 7, so that the material belt enters the drying chamber 2 smoothly under the guidance of the hollow feeding roller 4. A pair of transmission belts 401 are installed between the hollow feeding roller 4 and the hollow lifting roller 5, so that the hollow lifting roller 5 can rotate synchronously with the hollow feeding roller 4. The hot air entering the internal cavity of the hollow lifting roller 5 is continuously and evenly sprayed out from the densely distributed exhaust mesh 501 on its surface. The sprayed hot air first acts upward on the lower surface of the material belt B covering it, and performs direct and uniform drying, forming a dynamic high-pressure air film between the material belt B and the surface of the lifting roller. This air film significantly reduces the contact area between the material belt and the roller surface, preventing contaminants that may be present on the roller surface from adhering to or transferring to the back of the material belt. Multiple turbulence blades 402 are fixedly connected to the outside of the transmission belt 401. During the operation of the device, the transmission belt 401, which connects the hollow feed roller 4 and the hollow lifting roller 5, runs continuously. The multiple turbulence blades 402 fixed to its outside rotate at high speed in the drying chamber 2. These blades, like fan blades, continuously stir, cut, and disperse the airflow in the drying chamber 2. This active turbulence effectively destroys the vortex or laminar boundary layer that may form in a narrow space, promoting the orderly flow, strong mixing, and continuous renewal of hot air in the chamber.

[0025] In this embodiment, a blower 8 is installed on the top of the inner wall of the drying chamber 2, and the hollow lifting roller 5 is located below the blower 8 to ensure that its air outlet direction can effectively cover the upper surface of the material strip B located on the hollow lifting roller 5. The blower 8 can be an independent axial fan, a centrifugal fan, or an air supply unit with a specific air outlet. An independent heating source is installed in the drying chamber 2, which works in conjunction with the blower 8 to form hot air at a preset temperature to meet the needs of rapid drying after electroplating.

[0026] In this embodiment, the air blowing guide assembly 6 includes a pair of air blowing sleeves 601 fixedly sleeved on the hollow feed roller 4. Each of the two air blowing sleeves 601 has an annular air outlet 602 at one of their opposite ends. Hot air can only be sprayed out uniformly in an annular shape along the opposite ends of the sleeves through the only outlet, the annular air outlet 602. The spray direction is determined by the structure of each small hole in the annular air outlet 602, and is directed towards the axis of the hollow feed roller 4 to effectively act on the inlet material belt. The synchronous blowing of the air blowing sleeves 601 on both sides solves the problems of material belt drift, uneven airflow, and local over-drying or over-wetting caused by single-point or single-side blowing in the traditional feeding section, ensuring the effect of efficient double-sided drying in the hollow lifting roller 5 area combined with drying by the top air blower 8.

[0027] In this embodiment, an adsorption layer 403 is provided on the hollow feed roller 4. The adsorption layer 403 is located between two blowing sleeves 601. This area is exactly the area where two annular airflows converge and diffuse. The adsorption layer 403 directly intercepts the tiny condensed droplets or ultrafine liquid droplets that are not completely evaporated in this diffused airflow inside the porous structure or on the rough surface of the adsorption layer 403, preventing these droplets or droplets from flowing back to the production line entrance area or falling on nearby equipment and causing pollution or corrosion. Because its substrate, namely the rotating roller, is continuously heated by the internal hot air, the temperature of the adsorption layer 403 is maintained at a high level, which promotes rapid evaporation from the microporous structure of the adsorption layer 403. Thus, without the need for additional energy consumption and complex cleaning systems, the risk of secondary pollution in the entrance area is avoided, ensuring the cleanliness of the device entrance area.

[0028] In this embodiment, a sealing cover 204 is installed on the outside of the drying chamber 2. One end of the hollow lifting roller 5 and the hollow feeding roller 4 are both located inside the sealing cover 204. A conveying pipe 301 is installed between the air outlet of the exhaust fan 3 and the sealing cover 204. The hot air drawn out by the exhaust fan 3 enters the internal cavity of the hollow lifting roller 5 and the hollow feeding roller 4 directly and simultaneously through the connecting structure at the end of the roller shaft in the pressure chamber of the sealing cover 204. This eliminates the leakage loss and pressure drop loss of the hot air at the external interface, significantly improves the thermal energy utilization rate, reduces the number of external pipe joints, simplifies the layout, and improves the sealing reliability. Sealing rings are installed on the parts of the hollow lifting roller 5 and the hollow feeding roller 4 that are connected to the drying chamber 2 to prevent air leakage.

[0029] In this embodiment, the exhaust mesh 501 on the surface of the hollow lifting roller 5 is arranged in sections, and the density of the exhaust mesh 501 in the middle area of ​​the hollow lifting roller 5 is greater than the density of the exhaust mesh 501 in the two side areas. The hollow lifting roller 5 adopts a section design of "high density of mesh in the middle area and low density of mesh in the two side areas". This solves the problem of the wide strip sagging in the middle and uneven drying caused by its own weight, reduces the amount of air sprayed on both sides, avoids excessive blowing and dissipation, provides moderate and stable support and reduces heat loss, and optimizes the uniformity of lateral drying and energy efficiency ratio.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying apparatus for continuous electroplating of material strips, comprising a machine base (1) and a drying chamber (2) installed on the top of the machine base (1), characterized in that, A blower (3) is installed on one side of the drying chamber (2), and a hollow feed roller (4) and a hollow lifting roller (5) connected to the exhaust port of the blower (3) are installed inside the drying chamber (2). The hollow feed roller (4) is located at the entrance of the drying chamber (2), and a blower guide assembly (6) is sleeved on the hollow feed roller (4). The surface of the hollow lifting roller (5) is provided with an exhaust mesh (501). A support frame (201) is fixedly connected inside the drying chamber (2). A guide sleeve (202) sleeved on the outside of the hollow lifting roller (5) is installed on the top of the support frame (201). An exhaust groove (203) is provided on the top of the guide sleeve (202). The drying chamber (2) is equipped with a drive motor (7) connected to one end of the hollow feed roller (4). A pair of transmission belts (401) are installed between the hollow feed roller (4) and the hollow lifting roller (5). Multiple turbulence blades (402) are fixedly connected to the outside of the transmission belts (401).

2. The drying apparatus for continuous electroplating of material strips according to claim 1, characterized in that: A blower (8) is installed on the top of the inner wall of the drying chamber (2), and the hollow lifting roller (5) is located below the blower (8).

3. The drying apparatus for continuous electroplating of material strips according to claim 1, characterized in that: The blowing guide assembly (6) includes a pair of blowing sleeves (601) fixedly sleeved on the hollow feed roller (4), and an annular air outlet (602) is opened at the opposite end of the two blowing sleeves (601).

4. The drying apparatus for continuous electroplating of material strips according to claim 3, characterized in that: The hollow feed roller (4) is provided with an adsorption layer (403), which is located between two blower sleeves (601).

5. The drying apparatus for continuous electroplating of material strips according to claim 1, characterized in that: A sealing cover (204) is installed on the outside of the drying chamber (2). One end of the hollow lifting roller (5) and the hollow feeding roller (4) are located inside the sealing cover (204). A conveying pipe (301) is installed between the air outlet of the exhaust fan (3) and the sealing cover (204).

6. The drying apparatus for continuous electroplating of material strips according to claim 1, characterized in that: The ventilation mesh (501) on the surface of the hollow lifting roller (5) is arranged in sections, and the density of the ventilation mesh (501) in the middle area of ​​the hollow lifting roller (5) is greater than the density of the ventilation mesh (501) in the two side areas.

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