Thermal drying device for aluminum foil production

Abstract

The utility model relates to the technical field of aluminum foil drying, in particular to a heat drying device for aluminum foil production, which comprises a drying oven, the drying oven is sequentially divided into a primary heating chamber, a cooling chamber and a secondary heating chamber from front to back, and a sliding rail is mounted at the top of the inner wall of the drying oven. A clamping part used for clamping the aluminum foil is installed on the sliding rail in a sliding mode, and the clamping part can move along the sliding rail so that the clamped aluminum foil can sequentially pass through the primary heating chamber, the cooling chamber and the secondary heating chamber during drying. The aluminum foil is primarily heated through the primary heating chamber, moisture on the surface of the aluminum foil is removed, then the primarily heated aluminum foil is cooled through the cooling chamber, a certain temperature gradient is formed on the surface of the aluminum foil, then the aluminum foil with the temperature gradient formed on the surface enters the secondary heating chamber, and then the aluminum foil is secondarily heated through the second heating lamp. And the heating efficiency of the aluminum foil is improved by utilizing the heat transfer effect brought by the temperature gradient.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum foil drying, in particular to a hot drying device for aluminum foil production. Background Art

[0002] In the process of aluminum foil production, the heating and cooling links have an important impact on the quality and performance of aluminum foil. The traditional oven layout and parameter settings often lead to uneven heating of aluminum foil, affecting the flatness and gloss of aluminum foil.

[0003] For example, Chinese Patent Publication No. CN218864709U discloses a drying device for aluminum foil. In this comparative patent, the aluminum foil is sent to the outlet of the drying box through a driving roller, the heating plate is heated by an external power supply, and the hot air blowing mechanism blows the hot air onto the aluminum foil to improve the drying effect of the aluminum foil.

[0004] However, in the above comparative patent, the hot air generated by the heating plate arranged at the bottom of the drying box is blown onto the aluminum foil through a blower for heating and drying. Since the heating plate is arranged below the driving roller, when blowing hot air to heat the aluminum foil, most of the heat will contact the lower surface of the aluminum foil, making it easy for the aluminum foil to be unevenly heated, and the drying efficiency is also relatively low only by hot air heating. Summary of the Invention

[0005] In view of this, the purpose of the utility model is to provide a hot drying device for aluminum foil production, so as to solve the problems of relatively low heating efficiency of the hot drying device for aluminum foil and the inability to quickly cool the aluminum foil after heating and drying.

[0006] Based on the above purpose, the utility model provides a hot drying device for aluminum foil production, including an oven, and support legs are fixedly installed at the bottom of the oven. The oven is successively divided into a primary heating chamber, a cooling chamber, and a secondary heating chamber from front to back. A slide rail is installed at the top of the inner wall of the oven, and a clamping part for clamping the aluminum foil is slidably installed on the slide rail. The clamping part can move along the slide rail so that the clamped aluminum foil can successively pass through the primary heating chamber, the cooling chamber, and the secondary heating chamber during drying.

[0007] Preferably, air ducts one and heating lamps one are installed on both the left and right sides of the inner wall of the primary heating chamber, and the air ducts one and heating lamps one on the left and right sides are arranged alternately.

[0008] Preferably, air ducts two are installed on both the left and right sides of the inner wall of the cooling chamber, and heating lamps two are installed on both the left and right sides of the inner wall of the secondary heating chamber.

[0009] Preferably, air outlet holes are formed on the air ducts one and air ducts two, and a conveying pipe for supplying air into the air ducts one and air ducts two is installed on the side surface of the oven.

[0010] Preferably, the end of the slide rail extends out of the primary heating chamber. A screw rod is rotatably connected inside the slide rail, and a driving motor for driving the screw rod to rotate is installed at the end of the slide rail. The screw rod is threadedly connected with a nut sleeve.

[0011] Preferably, the clamping part includes a mounting frame fixedly connected to the nut sleeve, and a plurality of clips for clamping the aluminum foil are fixedly connected to the mounting frame.

[0012] The beneficial effects of the present utility model are as follows: After the aluminum foil enters the primary heating chamber, the first air duct can blow off the excess moisture on the surface of the aluminum foil, and at the same time, the first heating lamp can perform primary heating on the aluminum foil, so that the primary heating chamber can well perform primary heating on the surface of the aluminum foil and remove the moisture on the surface of the aluminum foil. After the aluminum foil after primary heating enters the cooling chamber, the second air duct blows air to cool the aluminum foil after primary heating, so as to form a certain temperature gradient on the surface of the aluminum foil. Subsequently, the aluminum foil with a temperature gradient on the surface enters the secondary heating chamber, and the second heating lamp performs secondary heating on the aluminum foil. By utilizing the heat transfer effect brought by the temperature gradient, the heating efficiency of the aluminum foil is improved. After heating, the aluminum foil returns along the original path, and under the action of the first air duct and the second air duct, the aluminum foil after heating can be quickly cooled. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0015] Figure 2 It is an embodiment of the present utility model Figure 1 The side structural diagram;

[0016] Figure 3 It is an embodiment of the present utility model Figure 2 The sectional view;

[0017] Figure 4 It is a schematic structural diagram of the screw rod and the clamping part of an embodiment of the present utility model.

[0018] In the figure: 1, oven; 2, support leg; 3, primary heating chamber; 4, cooling chamber; 5, secondary heating chamber; 6, first air duct; 7, first heating lamp; 8, second air duct; 9, second heating lamp; 10, conveying pipe; 11, screw rod; 12, driving motor; 13, nut sleeve; 14, mounting frame; 15, clip; 16, slide rail. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0020] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present utility model should be the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] As Figure 1 , Figure 2 , Figure 3 , Figure 4 shown, a hot drying device for aluminum foil production includes an oven 1, and support legs 2 are fixedly installed at the bottom of the oven 1. The oven 1 is sequentially divided into a primary heating chamber 3, a cooling chamber 4 and a secondary heating chamber 5 from front to back. A slide rail 16 is installed at the top of the inner wall of the oven 1, and a clamping part for clamping the aluminum foil is slidably installed on the slide rail 16. The clamping part can move along the slide rail 16 so that the clamped aluminum foil can sequentially pass through the primary heating chamber 3, the cooling chamber 4 and the secondary heating chamber 5 during drying.

[0022] After the aluminum foil enters the primary heating chamber 3, the primary heating chamber 3 can blow off the excess moisture on the surface of the aluminum foil and perform primary heating on the aluminum foil. The cooling chamber 4 can cool the aluminum foil after primary heating, so that a certain temperature gradient is formed on the surface of the aluminum foil. Subsequently, the secondary heating chamber 5 can perform secondary heating on the aluminum foil with a temperature gradient on the surface, and utilize the heat transfer effect brought by the temperature gradient to improve the heating efficiency of the aluminum foil.

[0023] When the temperature gradient is formed by first cooling and then heating the surface of the aluminum foil, the drying effect may be better. This way of treating the temperature gradient can increase the drying rate inside the material, because the temperature gradient can promote the migration of moisture from the inside of the material to the surface. During the drying process, the lower temperature can reduce the thermal expansion of the material, thereby reducing the internal stress caused by temperature changes and avoiding deformation or damage of the material. Subsequently, heating can accelerate the evaporation of moisture and improve the drying efficiency.

[0024] Specifically, the existence of the temperature gradient helps to form a humidity gradient from the wet area to the dry area, and this humidity gradient can drive the migration of moisture. In the experiment, by controlling the temperature gradient, the changes in moisture migration and the drying process inside the material can be observed. In addition, the temperature gradient also has a significant impact on the mechanical properties of the thermally induced shape memory polymer plate, indicating that the temperature gradient plays an important role in controlling the material properties.

[0025] In a preferred embodiment of the present utility model, air ducts one 6 and heating lamps one 7 are installed on both the left and right sides of the inner wall of the primary heating chamber 3, and the air ducts one 6 and heating lamps one 7 on the left and right sides are arranged in an alternating manner. Air ducts two 8 are installed on both the left and right sides of the inner wall of the cooling chamber 4, and heating lamps two 9 are installed on both the left and right sides of the inner wall of the secondary heating chamber 5. Air outlet holes are provided on the air ducts one 6 and air ducts two 8. A conveying pipe 10 for supplying air to the air ducts one 6 and air ducts two 8 is installed on the side surface of the oven 1, and the conveying pipe 10 is connected to an external air supply device, such as a blower, etc. Each heating lamp one 7 and heating lamp two 9 is provided with an independent power adjustment device, and temperature sensors are also provided on the heating lamps one 7 and heating lamps two 9.

[0026] When the aluminum foil needs to be heated and dried, after the aluminum foil enters the primary heating chamber 3, the air duct one 6 can blow away the excess moisture on the surface of the aluminum foil, and at the same time, the heating lamp one 7 can conduct primary heating on the aluminum foil, so that the primary heating chamber 3 can well conduct primary heating on the surface of the aluminum foil and remove the moisture on the surface of the aluminum foil. After the aluminum foil that has undergone primary heating enters the cooling chamber 4, the air duct two 8 blows air to cool the aluminum foil that has undergone primary heating, so as to form a certain temperature gradient on the surface of the aluminum foil. Subsequently, the aluminum foil with a temperature gradient formed on the surface enters the secondary heating chamber 5, and the heating lamp two 9 conducts secondary heating on the aluminum foil, and utilizes the heat transfer effect brought by the temperature gradient to improve the heating efficiency of the aluminum foil.

[0027] In another preferred embodiment of the present utility model, the end of the slide rail 16 extends out of the primary heating chamber 3. A screw rod 11 is rotatably connected inside the slide rail 16, and a driving motor 12 for driving the screw rod 11 to rotate is installed at the end of the slide rail 16. The screw rod 11 is threadedly connected with a screw sleeve 13, and the driving motor 12 is composed of a forward and reverse motor and a speed reducer.

[0028] The driving motor 12 drives the screw rod 11 to rotate. Since the screw rod 11 is threadedly connected to the nut sleeve 13, and the slide rail 16 restricts the rotation of the nut sleeve 13, the nut sleeve 13 can drive the clamping part to move along the slide rail 16.

[0029] In another preferred embodiment of the present invention, the clamping part includes a mounting frame 14 fixedly connected to the nut sleeve 13, and a plurality of clips 15 for clamping the aluminum foil are fixedly connected to the mounting frame 14.

[0030] The aluminum foil to be heated is clamped by the clips 15, and then the driving motor 12 is started. The driving motor 12 drives the screw rod 11 to rotate. Since the screw rod 11 is threadedly connected to the nut sleeve 13, and the slide rail 16 restricts the rotation of the nut sleeve 13, the nut sleeve 13 can drive the clamped aluminum foil to move, so that the aluminum foil can pass through the primary heating chamber 3 in sequence to perform primary heating on the aluminum foil and remove the moisture on the surface of the aluminum foil, and then enter the cooling chamber 4 to perform cooling treatment on the aluminum foil after primary heating, so that a temperature gradient is formed on the surface of the aluminum foil, and finally enter the secondary heating chamber 5 to perform secondary heating on the aluminum foil, improving the heating efficiency of the aluminum foil; if it is necessary to quickly cool down the heated aluminum foil, turn off the heating lamp one 7 and the heating lamp two 9, and turn on the air duct one 6 and the air duct two 8, and start the driving motor 12 to drive the heated aluminum foil to return along the original path, and the heated aluminum foil can be quickly cooled under the action of the air duct one 6 and the air duct two 8.

[0031] Those of ordinary skill in the art should understand that: the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, and they are not provided in detail for the sake of brevity.

[0032] The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hot drying device for aluminum foil production, including an oven (1), and support legs (2) are fixedly installed at the bottom of the oven (1), characterized in that, The oven (1) is successively divided into a primary heating chamber (3), a cooling chamber (4), and a secondary heating chamber (5) from front to back. A slide rail (16) is installed at the top of the inner wall of the oven (1), and a clamping part for clamping the aluminum foil is slidably installed on the slide rail (16). The clamping part can move along the slide rail (16) so that the clamped aluminum foil can successively pass through the primary heating chamber (3), the cooling chamber (4), and the secondary heating chamber (5) during drying.

2. The thermal drying device for aluminum foil production according to claim 1, characterized in that, Air ducts one (6) and heating lamps one (7) are installed on both the left and right sides of the inner wall of the primary heating chamber (3), and the air ducts one (6) and heating lamps one (7) on the left and right sides are arranged in an alternating manner.

3. The thermal drying device for aluminum foil production according to claim 2, characterized in that, Air ducts two (8) are installed on both the left and right sides of the inner wall of the cooling chamber (4), and heating lamps two (9) are installed on both the left and right sides of the inner wall of the secondary heating chamber (5).

4. A thermal drying device for aluminum foil production according to claim 3, characterized in that, Air outlet holes are formed in the air ducts one (6) and the air ducts two (8), and a delivery pipe (10) for supplying air into the air ducts one (6) and the air ducts two (8) is installed on the side surface of the oven (1).

5. A hot drying device for aluminum foil production according to claim 1, characterized in that, The end of the slide rail (16) extends out of the primary heating chamber (3). A screw rod (11) is rotatably connected inside the slide rail (16), and a driving motor (12) for driving the screw rod (11) to rotate is installed at the end of the slide rail (16). The screw rod (11) is threadedly connected with a screw sleeve (13).

6. The thermal drying device for aluminum foil production according to claim 5, characterized in that, The clamping part includes a mounting frame (14) fixedly connected to the screw sleeve (13), and a plurality of clips (15) for clamping the aluminum foil are fixedly connected to the mounting frame (14).

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