Cold air device for cooling aluminum plate

Abstract

A cold air device for cooling an aluminum plate comprises a frame, the top of the frame is provided with a gas collecting hood and at least one pair of air coolers, water outlets of the air coolers are connected with water drainage pipes, air outlets of the air coolers are connected with air exhaust pipes, and the bottom of the frame is provided with an annular conveying chain used for conveying the aluminum plate. A plurality of flow dividing units distributed in the aluminum plate conveying direction are arranged in the annular conveying chain, each flow dividing unit comprises a fixing frame, a plurality of parallel flow dividing plates are arranged in each fixing frame, and a flow dividing channel allowing cold air to pass through is formed between every two adjacent flow dividing plates; according to the aluminum plate cooling device, the problem that the cooling effect of the center position of an aluminum plate is poor can be solved, exhausted cold air can make better contact with the aluminum plate, and the cooling effect of the aluminum plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum plate cooling technology, specifically a cold air device for cooling aluminum plates. Background Technology

[0002] With the enrichment of modern life, aluminum packaging is becoming increasingly common, and attention is being paid to color. Therefore, in the production of colored aluminum packaging, the raw aluminum sheets need to be painted or printed. During the processing, after the aluminum sheets are painted or printed, they need to be dried to prevent the paint from being scratched in subsequent processes. If the dried aluminum sheets are stacked immediately, they are prone to sticking together because they have not cooled down, which affects the quality of the product.

[0003] Therefore, the applicant proposed a cooling device for aluminum plates, patent number CN212493781, which uses cold air generated by a fan-cooled machine to cool the aluminum plates. Specifically, the cold air generated by the fan-cooled machine is discharged through the vents of the exhaust device, blowing onto both sides of the aluminum plate. After heat exchange with the aluminum plate, the cold air is discharged through a gas collection hood. However, in actual production, it was found that this device has poor cooling effect on the center of the aluminum plate, i.e., the cooling effect is uneven. Utility Model Content

[0004] To address the problem of poor cooling effect at the center of aluminum plates in existing technologies, this invention provides a cooling air device for aluminum plates, which solves the problem of poor cooling effect at the center of aluminum plates, allowing the discharged cold air to better contact the aluminum plates and improving the cooling effect of the aluminum plates.

[0005] To achieve the above objectives, the specific solution adopted by this utility model is as follows: a cooling air device for cooling aluminum plates includes a frame, a gas collection hood and at least one pair of air coolers are provided on the top of the frame, a drain pipe is connected to the drain outlet of the air cooler and an exhaust pipe is connected to the air outlet of the air cooler, and an annular conveyor chain for conveying aluminum plates is provided at the bottom of the frame. Multiple diversion units distributed along the conveying direction of the aluminum plates are provided in the annular conveyor chain. Each diversion unit includes a fixed frame, and multiple parallel diversion plates are provided in the fixed frame. There is a diversion channel for cold air to pass through between two adjacent diversion plates. The bottom end of the exhaust pipe extends into the annular conveyor chain and is located below the diversion unit.

[0006] As an optimized solution for the aforementioned cooling air device for cooling aluminum plates: a connecting plate is provided on the fixed frame, and the connecting plate is vertically fixedly connected to the diverter plate through a connecting rod.

[0007] As another optimized solution for the above-mentioned cooling air device for cooling aluminum plates: a support frame for supporting the fixed frame is provided below the fixed frame. The support frame includes multiple first fixed rods extending along the vertical aluminum plate conveying direction and two second fixed rods extending along the aluminum plate conveying direction. The two second fixed rods are located on both sides of the annular conveyor chain.

[0008] As another optimized solution for the aforementioned cooling air device for cooling aluminum plates: the fixed frame is connected to the second fixed rod through multiple connecting pieces, the connecting pieces including a horizontal part fixedly connected to the second fixed rod and a vertical part fixedly connected to the outer wall of the fixed frame.

[0009] As another optimized solution for the above-mentioned cooling air device for cooling aluminum plates: the two sides of the annular conveyor chain are provided with support rails extending along the conveying direction of the aluminum plate. The support rails are fixedly connected to the first fixed rod through multiple support legs. The annular conveyor chain is provided with multiple support wheels that can move along the support rails.

[0010] As another optimized solution for the above-mentioned cooling air device for cooling aluminum plates: the fixed frame is slidably connected to the second fixed rod, and the support rail is rotatably connected to the side opposite to the annular conveyor chain. The top of the cam is located on the moving trajectory of the support wheel, and the bottom of the cam abuts against one side wall of the fixed frame. During the movement of the support wheel, it can push the cam to rotate, thereby pushing the fixed frame to move away from the aluminum plate conveying direction.

[0011] As another optimized solution for the above-mentioned cooling air device for cooling aluminum plates: the bottom end of the fixed frame is provided with multiple sliders that can slide along the second fixed rod, a baffle is fixedly connected to the second fixed rod, and a compression spring is provided between the baffle and one of the sliders to push the fixed frame to move along the aluminum plate conveying direction.

[0012] As another optimized solution for the aforementioned cooling air device for cooling aluminum plates: the annular conveyor chain is equipped with a decorative iron frame for placing aluminum plates.

[0013] As another optimized solution for the aforementioned cooling air device for cooling aluminum plates: the top of the air collection hood is connected to an exhaust pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model provides a cooling air device for cooling aluminum plates. A diversion unit is installed within a circular conveyor chain. The bottom end of the exhaust pipe extends below the diversion unit. Cool air generated by the air cooler is transported through the exhaust pipe to the area below the diversion unit. The cool air flows upwards, is diverted through the diversion channel, and enters the area below the aluminum plate. It then passes through the gap between adjacent aluminum plates to exchange heat with the plate before being discharged through the air collection hood. This design ensures better and more uniform contact between the cool air and the aluminum plate, solving the problem of poor cooling effect in the center of the aluminum plate. Simultaneously, the diversion plate, located below the aluminum plate, absorbs some of the heat from the plate, thus playing a heat dissipation role. As the cool air flows downwards, it contacts the diversion plate for heat exchange. The diversion plate increases the contact area with the cool air, reduces the temperature of the environment below the aluminum plate, and further improves the cooling effect of the aluminum plate.

[0016] 2. In this utility model, during the movement of the support wheel, the cam will be driven to rotate, which in turn will drive the diversion unit to slide away from the aluminum plate conveying direction. At this time, the compression spring is compressed. After the support wheel passes the cam, the compression spring will push the diversion unit to return to its original position, that is, the diversion unit can slide back and forth, which improves the degree of turbulence of the cold air, increases the contact time between the cold air and the aluminum plate, and further improves the cooling effect of the aluminum plate. Attached Figure Description

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

[0018] Figure 2 This is the front view of this utility model;

[0019] Figure 3 This is a schematic diagram of the splitter unit;

[0020] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the installation of the splitter unit in Embodiment 3;

[0022] Reference numerals: 1. Frame, 2. Exhaust duct, 3. Gas collection hood, 4. Exhaust pipe, 5. Air cooler, 6. Air supply duct, 7. Drain pipe, 8. Support frame, 801. First fixed rod, 802. Second fixed rod, 803. Support rail, 804. Support leg, 9. Diversion unit, 901. Fixed frame, 902. Connecting plate, 903. Diversion plate, 904. Connecting rod, 905. Slider, 10. Circular conveyor chain, 1001. Support wheel, 11. Cam, 12. Baffle, 1201. Compression spring. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. Parts not described or disclosed in detail in the following embodiments of this utility model should be understood as prior art known or should be known by those skilled in the art, such as the structure of the ring conveyor chain 10.

[0024] Example 1

[0025] A cooling air device for cooling aluminum plates includes a frame 1. A gas collection hood 3 and at least one pair of air coolers 5 are mounted on the top of the frame 1. The gas collection hood 3 has openings at both ends, with its larger diameter end extending into the frame 1 and its smaller diameter end extending out of the frame 1 and connected to an exhaust pipe 4. A drive fan is mounted on the exhaust pipe 4 to extract the air that has undergone heat exchange with the aluminum plate from the cooling air device. Figure 1 As shown, there are three pairs of air coolers 5, three on each side. The drain outlet of each air cooler 5 is connected to a drain pipe 7, and the air outlet of each air cooler 5 is connected to an exhaust pipe 2. Specifically, the air cooler 5 is connected to the upper end of the exhaust pipe 2 located inside the frame 1 via an air supply pipe 6. A ring conveyor chain 10 for conveying aluminum plates is installed at the bottom of the frame 1, and a decorative iron frame for placing the aluminum plates is installed on the ring conveyor chain 10. The painted or printed aluminum plates are placed on the decorative iron frame and conveyed to the drying device via the ring conveyor chain 10 for drying. The dried aluminum plates are then conveyed to the cooling air device via the ring conveyor chain 10.

[0026] The annular conveyor chain 10 is equipped with multiple diversion units 9 distributed along the conveying direction of the aluminum plates, such as... Figure 3As shown, the diversion unit 9 includes a fixed frame 901, which is a square frame formed by four elongated plates connected end to end. The ends of the elongated plates are welded together. Multiple parallel diversion plates 903 are arranged within the fixed frame 901, and a diversion channel for cold air is provided between adjacent diversion plates 903. Specifically, the diversion plates 903 are divided into four groups, distributed along the aluminum plate conveying direction, with each group of diversion plates 903 distributed perpendicular to the aluminum plate conveying direction. Each group of diversion plates 903 is connected to the fixed frame 901 via a connecting plate 902, and one end of each diversion plate 903 is perpendicularly fixed to the connecting plate 902 via a connecting rod 904. The bottom end of the exhaust pipe 2 extends into the annular conveyor chain 10 and is located below the diversion unit 9. In this embodiment, the bottom end of the exhaust pipe 2 is bent towards the annular conveyor chain 10, so that the exhaust port of the exhaust pipe 2 is located below the diversion unit 9. The cold air generated by the air cooler 5 enters the area below the annular conveyor chain 10 through the exhaust pipe 2. The cold air flows upward through the diversion channel into the area below the aluminum plate, and finally passes through the gap between two adjacent aluminum plates to exchange heat with the aluminum plate. Finally, it is discharged through the air collection hood 3, which makes the cold air contact the aluminum plate better and more evenly, solving the problem of poor cooling effect in the center of the aluminum plate. At the same time, the diversion plate 903 is located below the aluminum plate. The diversion plate 903 can absorb some of the heat of the aluminum plate and play a role in heat dissipation. As the cold air flows from top to bottom, it contacts the diversion plate 903 to exchange heat. The setting of the diversion plate 903 increases the contact area with the cold air, reduces the temperature of the environment below the aluminum plate, and further improves the cooling effect of the aluminum plate.

[0027] The fixed frame 901 and the support frame 8 below the fixed frame 901 are provided for supporting the fixed frame 901. The support frame 8 includes a plurality of first fixed rods 801 extending along the vertical aluminum plate conveying direction and two second fixed rods 802 extending along the aluminum plate conveying direction. The two ends of the first fixed rods 801 are fixed to the ground by fixed legs perpendicular to them. The two second fixed rods 802 are located on both sides of the annular conveyor chain 10. The second fixed rods 802 are vertically fixedly connected to the first fixed rods 801, and the connection between the two is by welding.

[0028] like Figure 5 As shown, the annular conveyor chain 10 has support rails 803 extending along the aluminum plate conveying direction on both sides. The support rails 803 are fixedly connected to the first fixed rods 801 via multiple support legs 804. The support legs 804 are vertically arranged, with their top ends fixedly connected to the support rails 803 and their bottom ends fixedly connected to the first fixed rods 801. In this embodiment, a diversion unit 9 is provided between two adjacent first fixed rods 801, i.e., between two adjacent support legs 804. The annular conveyor chain 10 is equipped with multiple support wheels 1001 that can move along the support rails 803. During the conveying of the aluminum plate by the annular conveyor chain 10, the support wheels 1001 move along the support rails 803.

[0029] The above are the basic embodiments of this utility model. Further improvements, optimizations, and limitations can be made based on the above to obtain the following embodiments:

[0030] Example 2

[0031] This embodiment is an improved version of Embodiment 1. Its main structure is the same as Embodiment 1, but the improvement lies in the following: the fixed frame 901 is connected to the second fixed rod 802 via multiple connecting pieces. These connecting pieces are L-shaped, with four pieces evenly divided into two groups. The two groups of connecting pieces are symmetrically distributed along the annular conveyor chain 10, and the two connecting pieces in each group are distributed along the aluminum plate conveying direction. Each connecting piece includes a horizontal portion fixedly connected to the second fixed rod 802 and a vertical portion fixedly connected to the outer wall of the fixed frame 901. The horizontal and vertical portions are integrally connected. The horizontal portion is bolted to the second fixed rod 802, and the vertical portion is bolted to the second fixed rod 802.

[0032] Example 3

[0033] This embodiment is an improvement on embodiment 1. Its main structure is the same as embodiment 1, but the improvement lies in the following: the fixed frame 901 is slidably connected to the second fixed rod 802, and the bottom end of the fixed frame 901 is provided with multiple sliders 905 that can slide along the second fixed rod 802. Figure 5 As shown, a cam 11 is rotatably connected to the side of the support rail 803 away from the annular conveyor chain 10. The top of the cam 11 is located on the moving track of the support wheel 1001, and the top of the cam 11 is higher than the upper surface of the support rail 803. The bottom of the cam 11 abuts against one side wall of the fixed frame 901, and the right edge of the bottom of the cam 11 abuts against the side wall of the fixed frame 901. A baffle 12 is fixedly connected to the second fixed rod 802, and a compression spring 1201 is provided between the baffle 12 and one of the sliders 905 to push the fixed frame 901 to move along the aluminum plate conveying direction. During its movement, the support wheel 1001 contacts the top of the cam 11 and pushes the cam 11 to rotate, causing the cam 11 to rotate counterclockwise. This, in turn, pushes the fixed frame 901 to move away from the aluminum plate conveying direction, i.e., pushes the fixed frame 901 to move to the right, compressing the compression spring 1201. When the support wheel 1001 passes the cam 11, the compression spring 1201 pushes the fixed frame 901 to move to the left. This means that the diversion unit 9 can move back and forth, increasing the degree of turbulence of the cold air, increasing the contact time between the cold air and the aluminum plate, and further improving the cooling effect of the aluminum plate.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cold air device for cooling aluminum plates, comprising a frame (1), the top of the frame (1) is provided with a gas collecting hood (3) and at least one pair of air coolers (5), the drain port of the air cooler (5) is connected with a drain pipe (7), the air outlet of the air cooler (5) is connected with an exhaust pipe (2), the bottom of the frame (1) is provided with a ring-shaped conveying chain (10) for conveying aluminum plates, characterized in that: The annular conveying chain (10) is provided with a plurality of shunt units (9) distributed along the conveying direction of the aluminum plate, the shunt unit (9) comprises a fixed frame (901), a plurality of parallel shunt plates (903) are arranged in the fixed frame (901), and a shunt passage for the cold air to pass through is arranged between the adjacent two shunt plates (903); the bottom end of the exhaust pipe (2) extends into the annular conveying chain (10) and is located below the shunt unit (9).

2. The cooling device for cooling aluminum plates according to claim 1, wherein: The fixed frame (901) is provided with a connecting plate (902), and the connecting plate (902) is vertically and fixedly connected with the shunt plate (903) through a connecting rod (904).

3. The cooling device for cooling aluminum plates according to claim 1, wherein: The fixed frame (901) is provided with a support frame (8) below for supporting the fixed frame (901), the support frame (8) comprises a plurality of first fixing rods (801) extending along the vertical aluminum plate conveying direction and two second fixing rods (802) extending along the aluminum plate conveying direction, and the two second fixing rods (802) are located on both sides of the annular conveying chain (10).

4. The cooling device for cooling aluminum plates according to claim 3, wherein: The fixed frame (901) is connected with the second fixing rod (802) through a plurality of connecting sheets, and the connecting sheet comprises a horizontal part fixedly connected with the second fixing rod (802) and a vertical part fixedly connected with the outer side wall of the fixed frame (901).

5. The cooling device for cooling aluminum plates according to claim 3, wherein: The annular conveying chain (10) is provided with a support rail (803) extending along the aluminum plate conveying direction on both sides, the support rail (803) is fixedly connected with the first fixing rod (801) through a plurality of support legs (804), and the annular conveying chain (10) is provided with a plurality of support wheels (1001) capable of moving along the support rail (803).

6. The cooling device for cooling aluminum plates according to claim 5, wherein: The fixed frame (901) is slidably connected with the second fixing rod (802), the support rail (803) is rotatably connected with a cam (11) on the side away from the annular conveying chain (10), the top of the cam (11) is located on the moving track of the support wheel (1001), the bottom of the cam (11) abuts against one side wall of the fixed frame (901), the support wheel (1001) can push the cam (11) to rotate during the moving process, and then the fixed frame (901) is pushed to move away from the aluminum plate conveying direction.

7. The cooling device for cooling aluminum plates according to claim 6, wherein: The bottom end of the fixed frame (901) is provided with a plurality of sliding blocks (905) capable of sliding along the second fixing rod (802), the second fixing rod (802) is fixedly connected with a baffle (12), and a compression spring (1201) for pushing the fixed frame (901) to move along the aluminum plate conveying direction is arranged between the baffle (12) and one of the sliding blocks (905).

8. The cooling device for cooling aluminum plates according to claim 1, wherein: The annular conveying chain (10) is provided with a flower iron stand for placing the aluminum plate.

9. The cooling device for cooling aluminum plates according to claim 1, wherein: The top end of the gas collecting cover (3) is communicated with an exhaust pipe (4).

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