Passivation air-drying system

Abstract

The utility model discloses a passivation air-drying system, which relates to the field of air-drying systems and comprises a drying box, a conveying device transversely penetrates through the drying box, and the drying box is connected with an air supply device. The air supply device comprises an air supply fan, and a heating box is connected between the air supply fan and the drying box; the air supply fan comprises an air suction pipe and an air supply pipe, the air suction pipe is connected with a filter unit, and the air supply pipe is connected with the heating box; the passivation air-drying system can filter air sucked into the fan, and the situation that air blown to the surface of copper foil contains impurities, so that concave-convex point defects are formed on the surface of the copper foil, and the surface flatness and quality of the copper foil are affected is avoided.

Description

Technical Field

[0001] The utility model relates to the field of air-drying systems, and specifically to a passivation air-drying system. Background Art

[0002] In the production of copper foils, in order to improve the corrosion resistance of the copper foil surface, the copper foil is generally passivated. After passivation, the surface of the copper foil needs to be thoroughly air-dried to remove the residual treatment liquid or moisture, and ensure the cleanliness and quality of the copper foil.

[0003] Currently, hot air drying is a commonly used drying method. External air is heated by a blower fan and then sent into a drying box to effectively air-dry the copper foil. However, the suction pipes of the blower fan mostly adopt an open design, and the suction pipe orifice is directly exposed to the production environment, resulting in dust, foreign objects, etc. in the on-site environment being easily sucked into the fan with the air and then blown onto the copper foil surface. After these foreign objects come into contact with the copper foil surface, it is easy to form concave and convex point defects, which not only affect the surface flatness of the copper foil but also affect the quality of the copper foil. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a passivation air-drying system, which can filter the air sucked into the fan, avoid impurities in the gas blown onto the copper foil surface, and thus form concave and convex point defects on the copper foil surface, affecting the surface flatness and quality of the copper foil.

[0005] The above optimized structure of the utility model is achieved through the following technical solutions: A passivation air-drying system includes a drying box, a conveying device is horizontally penetrated through the drying box, and the drying box is connected with a blowing device;

[0006] The blowing device includes a blowing fan, and a heating box is connected between the blowing fan and the drying box;

[0007] The blowing fan includes a suction pipe and a delivery pipe, a filtering unit is connected to the suction pipe, and the delivery pipe is connected to the heating box.

[0008] In some embodiments, the filtering unit includes a filter screen, the filter screen is arranged at the orifice of the suction pipe, a filter element is further arranged on the suction pipe, and the filter screen is coaxially arranged inside the filter element.

[0009] In some embodiments, a connecting member is arranged at the orifice of the suction pipe, the connecting member includes a fixed ring, the fixed ring is coaxially arranged on the suction pipe, an installation ring is arranged on the fixed ring, the fixed ring is in threaded fit with the installation ring, and the filter screen is arranged between the fixed ring and the installation ring.

[0010] In some embodiments, a positioning ring groove is coaxially provided on the fixed circular ring, the cross-section of the filter net is groove-shaped, and the filter net is inserted and matched with the positioning ring groove.

[0011] In some embodiments, the connecting member further includes a connecting sleeve, the connecting sleeve is screwed and matched with the air suction pipe, and is coaxially sleeved on the fixed circular ring, and the filter element is fixedly provided on the connecting sleeve.

[0012] In some embodiments, the air supply fan is a passivation fan.

[0013] In some embodiments, the conveying device includes a conveying frame, a cooling port is provided on the conveying frame, the cooling port is arranged on one side of the discharge port of the drying box, and a cooling unit is arranged in the cooling port.

[0014] In some embodiments, the cooling unit includes two fixed cross plates, and a plurality of cooling fans are arranged between the two fixed cross plates, and the air outlet of the cooling fan faces upward.

[0015] In summary, the utility model has the following beneficial effects:

[0016] (1) By arranging a filter net and a filter element on the air suction pipe of the air supply fan, the utility model forms a double filtration structure, which can effectively remove impurities in the air entering the air supply fan, thereby ensuring the cleanliness of the air entering the drying box, avoiding contact between the copper foil and impurities, forming concave and convex point defects on the surface of the copper foil, and further affecting the surface flatness and quality of the copper foil.

[0017] (2) By arranging a cooling unit at the discharge port of the drying box, the utility model can preliminarily cool the copper foil passing through the drying box, prevent the copper foil from deforming or being damaged due to overheating, and at the same time can extend the air drying time of the copper foil and improve the air drying effect. Description of the Drawings

[0018] Figure 1 is a structural diagram of the utility model;

[0019] Figure 2 is the utility model Figure 1 an enlarged view of part A in;

[0020] Figure 3 is a sectional view of the installation of the filter unit of the utility model on the air suction pipe;

[0021] Figure 4 is the utility model Figure 3 an enlarged view of part B in.

[0022] In the figure: 1. Drying box; 2. Conveyor device; 21. Conveyor rack; 22. Cooling port; 3. Cooling unit; 31. Fixed horizontal plate; 32. Cooling fan; 4. Air supply fan; 41. Suction air pipe; 42. Air supply pipe; 5. Heating box; 6. Filter unit; 61. Filter net; 62. Filter element; 7. Connector; 71. Fixed ring; 72. Installation ring; 73. Positioning ring groove; 74. Connecting sleeve. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Refer to Figures 1-4 , a passivation and air-drying system for the air-drying treatment of copper foil after passivation, including a drying box 1, a conveyor device 2 and an air supply device. The drying box 1 can be a metal box structure. The drying box 1 is a prior art, and its specific structure and working principle will not be described in detail here; a conveyor device 2 is horizontally penetrated through the drying box 1 for conveying the copper foil to be air-dried. The drying box 1 is connected with an air supply device, and the air supply device includes an air supply fan 4, which can convey external air into the drying box 1. An heating box 5 is connected between the air supply fan 4 and the drying box 1; the heating box 5 is used for heating the air entering the drying box 1 to accelerate the air-drying of the copper foil. The heating box 5 is a prior art, and its specific structure and working principle will not be described in detail here.

[0025] The air supply fan 4 includes a suction air pipe 41 and an air supply pipe 42. The suction air pipe 41 is connected with a filter unit 6, which can filter foreign matters in the air supply process of the air supply fan 4 and improve the cleanliness of the gas entering the drying box 1, so as to avoid the contact between foreign matters and the copper foil during the drying process of the copper foil, causing defects of concave and convex points on the surface of the copper foil roll and ensuring the quality of the copper foil; the air supply pipe 42 is connected with the heating box 5.

[0026] In some embodiments, the filter unit 6 includes a filter net 61 and a filter element 62. The filter net 61 is arranged at the pipe orifice of the suction air pipe 41, and a filter element 62 is also arranged on the suction air pipe 41. The filter element 62 can be a strip-shaped filter net, which can increase the contact area between the filter element 62 and the air to provide sufficient filtered air; the filter net 61 is coaxially arranged inside the filter element 62. Through the double filtration of the filter net 61 and the filter element 62, the filtering effect of the air can be improved, thereby improving the cleanliness of the gas entering the drying box 1.

[0027] In some embodiments, a connector 7 is provided at the nozzle of the air suction pipe 41. The connector 7 includes a fixed ring 71 which is coaxially arranged on the air suction pipe 41. An installation ring 72 is provided on the fixed ring 71. The fixed ring 71 and the installation ring 72 are in screw connection and cooperation. A filter net 61 is provided between the fixed ring 71 and the installation ring 72. Through the screw connection and cooperation between the fixed ring 71 and the installation ring 72, the installation and disassembly of the fixed ring 71 and the installation ring 72 are facilitated, and thus the replacement of the filter net 61 is facilitated.

[0028] In some embodiments, a positioning ring groove 73 is coaxially provided on the fixed ring 71. The cross-section of the filter net 61 is groove-shaped. The filter net 61 and the positioning ring groove 73 are in plug-in connection and cooperation, which facilitates the positioning installation of the filter net 61 and can ensure the complete filtration of the air suction pipe 41 by the filter net 61.

[0029] In some embodiments, the connector 7 further includes a connecting sleeve 74. The connecting sleeve 74 is in screw connection and cooperation with the air suction pipe 41 and is coaxially sleeved on the fixed ring 71. A filter element 62 is fixedly provided on the connecting sleeve 74.

[0030] In some embodiments, the air supply fan 4 is a passivation fan to meet the air-drying requirements of the copper foil after passivation treatment.

[0031] In some embodiments, the conveying device 2 includes a conveying frame 21. Components such as conveying rollers and supporting rollers are provided on the conveying frame 21 to realize the conveying of the copper foil. The specific structure of the conveying device 2 is the prior art and will not be elaborated here; a cooling port 22 is provided on the conveying frame 21. The cooling port 22 is arranged on one side of the discharge port of the drying box 1. A cooling unit 3 is provided in the cooling port 22 for the preliminary cooling of the copper foil after air-drying, preventing the copper foil from deforming or being damaged due to overheating, and at the same time, the air-drying duration of the copper foil can be extended and the air-drying effect can be improved.

[0032] In some embodiments, the cooling unit 3 includes two fixed cross plates 31 which are arranged perpendicular to the conveying direction of the copper foil. A plurality of cooling fans 32 are provided between the two fixed cross plates 31. The air outlet of the cooling fans 32 faces upward to ensure the cooling effect.

[0033] The specific working principle is as follows:

[0034] During operation, the copper foil to be air-dried is placed on the conveying device 2, and the conveying device 2 drives the copper foil to move towards the drying box 1. At the same time, the air supply fan 4 is started. The outside air enters the air supply fan 4 from the air suction pipe 41 after being filtered by the filtering unit 6 and enters the heating box 5 from the air supply pipe 42 for heating. The heated air enters the interior of the drying box 1 to uniformly air-dry the copper foil being conveyed. During the air-drying process, the cooling fans 32 in the cooling unit 3 work simultaneously to perform preliminary cooling on the copper foil flowing out of the drying box 1, and thus the passivation air-drying treatment is completed.

[0035] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A passivation air-drying system, characterized in that: It comprises a drying box (1), wherein the drying box (1) is provided with a conveying device (2) running through it transversely, and the drying box (1) is connected to an air supply device; The air supply device comprises an air supply fan (4), and a heating box (5) is connected between the air supply fan (4) and the drying box (1); The air supply fan (4) comprises an air suction pipe (41) and an air supply pipe (42); the air suction pipe (41) is connected to a filter unit (6), and the air supply pipe (42) is connected to the heating box (5).

2. A passivation air-drying system according to claim 1, characterized in that: The filter unit (6) comprises a filter screen (61), the filter screen (61) being arranged at the pipe opening of the air suction pipe (41), the air suction pipe (41) also being provided with a filter element (62), the filter screen (61) being coaxially arranged inside the filter element (62).

3. A passivation air-drying system according to claim 2, characterized in that: The air suction pipe (41) is provided with a connecting piece (7) at the pipe mouth, the connecting piece (7) comprising a fixing ring (71), the fixing ring (71) being coaxially arranged on the air suction pipe (41), a mounting ring (72) being provided on the fixing ring (71), the fixing ring (71) and the mounting ring (72) being threadedly engaged, and the filter screen (61) being provided between the fixing ring (71) and the mounting ring (72).

4. A passivation air-drying system according to claim 3, characterized in that: A positioning ring groove (73) is coaxially provided on the fixed circular ring (71); the cross section of the filter screen (61) is groove-shaped; the filter screen (61) is plug-fitted into the positioning ring groove (73).

5. A passivation air-drying system according to claim 3, characterized in that: The connecting member (7) further comprises a connecting sleeve (74), the connecting sleeve (74) being threadedly engaged with the air suction pipe (41) and coaxially sleeved on the fixing ring (71), the filter element (62) being fixedly mounted on the connecting sleeve (74).

6. A passivation air-drying system according to claim 1, characterized in that: The air supply fan (4) is a passivation fan.

7. A passivation air-drying system according to claim 1, characterized in that: The conveying device (2) comprises a conveying frame (21), the conveying frame (21) is provided with a cooling port (22), the cooling port (22) is arranged on one side of a material discharge port of the drying box (1), and a cooling unit (3) is arranged in the cooling port (22).

8. A passivation air-drying system according to claim 7, characterized in that: The cooling unit (3) comprises two fixed transverse plates (31), and a plurality of cooling fans (32) are arranged between the two fixed transverse plates (31), with air outlets of the cooling fans (32) facing upwards.

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