Cooling device for dip-coating and drying production line

Abstract

The utility model discloses a cooling device for a dip-coating drying production line, which comprises a cooling box body fixed on the side part of a drying oven, a paper tape inlet arranged on one side of the cooling box body close to the drying oven and a paper tape outlet arranged on one side of the cooling box body away from the drying oven; the cooling fan is mounted on the cooling box body; the cooling mechanism is arranged in the cooling box body, is communicated to the cooling fan and is used for blowing and cooling the upper and lower paper surfaces of the paper tape; the exhaust air pipe is mounted at the upper end of the cooling box body and communicates with the interior of the cooling box body; the air curtain mechanism is arranged in the cooling box body, located between the drying oven and the cooling mechanism and used for blowing air to the paper tape at the paper tape inlet, and the air blowing direction of the air curtain mechanism faces the paper tape inlet; the air curtain fan is installed at the upper end of the cooling box body, an air inlet of the air curtain fan is connected to the exhaust air pipe through the exhaust pipe, and an air outlet of the air curtain fan is connected to the air curtain assembly. According to the cooling device for the dip-coating drying production line, provided by the utility model, the cooling efficiency and effect are improved, and the product quality is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of dip coating, in particular to a cooling device used in a dip coating drying production line. Background Art

[0002] During the production process of impregnated paper, after the paper strip is dipped in glue or coated with glue, it enters the oven to dry the impregnated paper at high temperature, then passes through the cooling device to cool it down, and finally cuts it into the required specifications. Figure 1 As shown, a conventional cooling device 200 is installed at the rear of the oven 100, and an exhaust port 201 is provided on the cooling device 200 to exhaust the internal gas. The cooling device 200 and the oven 100 are adjacent to each other but not connected, and a small gap is reserved so that there is space for free expansion and contraction when the oven 100 is heated or cooled.

[0003] During the production process, the hot air in the oven will be taken out of the oven during the drying process of the impregnated paper. Part of the hot air will enter the gap between the oven and the cooling device, and the other part will enter the cooling device. The hot air in the impregnated paper oven contains a certain amount of easily condensable low-molecular polymers and water vapor. When the high-temperature air taken out of the oven by the impregnated paper encounters the cold air outside the oven or in the cooling device, it is very easy to produce condensed water and condensed into liquid low-molecular polymers. This part of the liquid condensate will not only pollute the environment, but also may drip onto the surface of the impregnated paper, causing product quality defects. At the same time, the more high-temperature air enters the cooling device, the more it will affect the cooling speed and cooling effect of the impregnated paper, causing unstable product quality.

[0004] In order to solve the above problems, the present utility model is provided. Utility Model Content

[0005] The utility model aims to provide a cooling device for a dip coating and drying production line to improve cooling efficiency.

[0006] Based on the above problems, the technical solution provided by the utility model is:

[0007] Cooling device for dip coating and drying production line, including:

[0008] A cooling box body is fixed to the side of the oven, wherein a paper tape inlet is provided on a side of the cooling box body close to the oven and a paper tape outlet is provided on a side of the cooling box body away from the oven;

[0009] A cooling fan, which is installed on the cooling box;

[0010] A cooling mechanism, which is arranged in the cooling box and connected to the cooling fan, and is used for blowing air to cool the upper and lower paper surfaces of the paper tape;

[0011] An exhaust duct, which is installed at the upper end of the cooling box and connected to the interior of the cooling box;

[0012] An air curtain mechanism is disposed in the cooling box and between the oven and the cooling mechanism, and is used to blow air to the paper tape at the paper tape inlet, with the blowing direction of the air curtain mechanism being toward the paper tape inlet;

[0013] An air curtain fan is installed at the upper end of the cooling box body, the air inlet of the air curtain fan is connected to the exhaust air duct through an exhaust duct, and the air outlet is connected to the air curtain mechanism.

[0014] In some embodiments, the cooling mechanism includes an upper cooling nozzle assembly located above the paper tape, a lower cooling nozzle assembly located below the paper tape, an upper cooling air duct connecting the upper cooling nozzle assembly and the cooling fan, and a lower cooling air duct connecting the lower cooling nozzle assembly and the cooling fan.

[0015] In some embodiments, the upper cooling nozzle assembly includes an upper support seat and a plurality of upper cooling nozzles spaced apart on the upper support seat; the lower cooling nozzle assembly includes a lower support seat and a plurality of lower cooling nozzles spaced apart on the lower support seat.

[0016] In some of the embodiments, the plurality of upper cooling nozzles are arranged alternately with the plurality of lower cooling nozzles.

[0017] In some of the embodiments, the upper cooling air duct and the lower cooling air duct are connected to the cooling fan via a main air duct, the upper cooling air duct extends from the top of the cooling box to above the paper belt, and the lower cooling air duct extends from the top of the cooling box to below the paper belt.

[0018] In some embodiments, the air curtain mechanism includes an upper air curtain nozzle located above the paper tape, a lower air curtain nozzle located below the paper tape, an upper air curtain air duct connecting the upper air curtain nozzle and the air curtain fan, and a lower air curtain air duct connecting the lower air curtain nozzle and the air curtain fan, and the spray outlets of the upper air curtain nozzle and the lower air curtain nozzle are directed toward the paper tape inlet.

[0019] In some embodiments, the upper end of the upper air curtain air duct is connected to the air curtain fan and the lower end extends above the paper tape, and the upper end of the lower air curtain air duct is connected to the upper air curtain air duct and the lower end extends below the paper tape.

[0020] In some embodiments, the upper air curtain nozzle and the lower air curtain nozzle are arranged symmetrically in an upper and lower direction.

[0021] In some of the embodiments, a butterfly valve for adjusting the opening is provided on the exhaust pipe.

[0022] In some of the embodiments, a partition extending in a vertical direction is provided in the cooling box body, the partition is located between the air curtain mechanism and the cooling mechanism and is provided with a through slot for the paper supply belt to pass through.

[0023] Compared with the prior art, the advantages of the utility model are:

[0024] 1. An air curtain mechanism is set at the paper tape entrance of the cooling box to form a buffer zone between the high temperature zone of the oven and the low temperature zone of the cooling box, which can reduce the hot air in the drying box from entering the cooling box, improve the cooling speed and effect, and reduce the generation of condensate, reduce the damage of condensate to the paper tape, and ensure product quality;

[0025] 2. A butterfly valve is installed on the exhaust pipe to adjust the air flow according to process requirements, thereby adjusting the air curtain barrier effect;

[0026] 3. Multiple upper cooling nozzles and multiple lower cooling nozzles are arranged alternately, which can play the role of suspending and conveying paper belts while ensuring the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of a cooling device of a dip coating and drying production line in the prior art;

[0029] Figure 2 This is a schematic structural diagram of an embodiment of a cooling device for a dip coating and drying production line according to the utility model;

[0030] in:

[0031] 100, drying box; 200, cooling device; 201, exhaust port;

[0032] 1. Oven; 2. Cooling box; 3. Cooling fan; 4. Main air duct; 5. Upper cooling air duct; 6. Lower cooling air duct; 7. Upper support seat; 8. Upper cooling nozzle; 9. Lower support seat; 10. Lower cooling nozzle; 11. Exhaust air duct; 12. Air curtain fan; 13. Exhaust duct; 14. Butterfly valve; 15. Upper air curtain air duct; 16. Lower air curtain air duct; 17. Upper air curtain nozzle; 18. Lower air curtain nozzle; 19. Partition; 20. Paper tape. DETAILED DESCRIPTION

[0033] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the utility model and are not limited to the scope of the utility model. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0034] like Figure 2 As shown, it is a structural schematic diagram of an embodiment of the utility model, which provides a cooling device for a dip coating and drying production line, including a cooling box 2, a cooling fan 3 installed on the cooling box 2, a cooling mechanism installed in the cooling box 2, an exhaust duct 11 installed at the upper end of the cooling box 2, an air curtain mechanism arranged in the cooling box 2 and an air curtain fan 12 arranged on the cooling box 2, the cooling mechanism is connected to the cold air fan 3 to cool and blow the paper tape 20 passing through the cooling box 2, the air curtain mechanism is connected to the exhaust duct 11 via the air curtain fan 12, and the air in the exhaust duct 11 is sucked to the air curtain mechanism by the air curtain fan 12 to blow the paper tape 20, and the blowing direction of the air curtain mechanism is toward the paper tape inlet to form an air curtain to reduce the hot air from the oven 1 from entering the cooling box 2.

[0035] The cooling box body 2 is fixed to the side of the oven 1 . A paper tape inlet is provided on a side of the cooling box body 2 close to the oven 1 , and a paper tape outlet is provided on a side of the cooling box body 2 away from the oven 1 .

[0036] A partition 19 extending in the vertical direction is provided in the cooling box body 2, and a through groove for the paper supply belt 20 to pass through is provided on the partition 19. The partition 19 divides the cooling box body 2 into two left and right spaces, namely a buffer zone and a cooling zone. The air curtain mechanism is arranged in the buffer zone, and the cooling mechanism is arranged in the cooling zone.

[0037] The cooling mechanism includes an upper cooling nozzle assembly located above the paper tape 20, a lower cooling nozzle assembly located below the paper tape 20, an upper cooling air duct 5 connected to the upper cooling nozzle assembly and the cooling fan 3, and a lower cooling air duct 6 connected to the lower cooling nozzle assembly and the cooling fan 3. The upper cooling air duct 5 and the lower cooling air duct 6 are connected to the cooling fan 3 via the main air duct 4, the upper cooling air duct 5 extends from the top of the cooling box 2 to the top of the paper tape 20, and the lower cooling air duct 6 extends from the top of the cooling box 2 to the bottom of the paper tape 20.

[0038] The upper cooling nozzle assembly includes an upper support seat 7 and a plurality of upper cooling nozzles 8 spaced apart on the upper support seat 7; the lower cooling nozzle assembly includes a lower support seat 9 and a plurality of lower cooling nozzles 10 spaced apart on the lower support seat 7; the plurality of upper cooling nozzles 8 and the plurality of lower cooling nozzles 10 are used to blow air to cool both sides of the paper tape 20, and the spray outlets of the upper cooling nozzles 8 and the lower cooling nozzles 10 face toward the paper tape outlet.

[0039] In this example, a plurality of upper cooling nozzles 8 and a plurality of lower cooling nozzles 10 are arranged alternately, which can play a role in suspending and conveying the paper tape 20 while ensuring the cooling effect, so as to facilitate the output of the paper tape 20 from the cooling box 2.

[0040] The air curtain mechanism includes an upper air curtain nozzle 17 located above the paper tape 20, a lower air curtain nozzle 18 located below the paper tape 20, an upper air curtain duct 15 connecting the upper air curtain nozzle 17 and the air curtain fan 12, and a lower air curtain duct 16 connecting the lower air curtain nozzle 18 and the air curtain fan 12. The air curtain fan 12 draws gas in the exhaust air duct 11 to the upper air curtain nozzle 17 and the lower air curtain nozzle 18 to blow air on the paper tape 20. The nozzles of the upper air curtain nozzle 17 and the lower air curtain nozzle 18 face the paper tape inlet to form an air curtain, thereby reducing the hot air in the oven 1 from entering the cooling zone.

[0041] The upper end of the upper air curtain duct 15 is connected to the air curtain fan 12 and the lower end extends above the paper belt 20 . The upper end of the lower air curtain duct 16 is connected to the upper air curtain duct 15 and the lower end extends below the paper belt 20 .

[0042] In this example, the upper air curtain nozzle 17 and the lower air curtain nozzle 18 are arranged symmetrically up and down, thereby forming an air curtain to reduce the air entering the cooling zone.

[0043] In order to adjust the barrier strength of the air curtain according to process requirements, a butterfly valve 14 is provided on the exhaust pipe 13 to adjust the opening, thereby adjusting the flow rate and further adjusting the barrier strength of the air curtain.

[0044] The working principle of the utility model is:

[0045] The paper tape 20 that has been dried in the oven 1 enters the cooling box 2 from the paper tape inlet, passes through the groove on the partition 19 and enters the cooling zone, and then is led out of the cooling box 2 through the paper tape outlet. The upper cooling nozzle assembly and the lower cooling nozzle assembly blow the cold air sucked by the cooling fan 3 to the paper tape 20 to cool the paper tape 20. The gas in the cooling zone is discharged to the subsequent processing unit through the exhaust air duct 11 for processing. The wind curtain fan 12 draws part of the gas in the exhaust air duct 11 to the upper wind curtain nozzle 17 and the lower wind curtain nozzle 18, and blows air to the paper tape 20 in the buffer in the direction of the lower paper tape inlet to form a wind curtain, so as to reduce the high-temperature gas in the oven 1 from entering the cooling zone, improve the cooling efficiency and effect, and at the same time reduce the generation of condensate, reduce the damage of the condensate to the paper tape, and ensure the quality of the product.

[0046] In summary, the cooling device can improve cooling efficiency and effect, reduce damage to the paper tape, and optimize product quality.

[0047] The above examples are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A cooling device for a dip coating and drying production line, characterized in that: include: A cooling box body is fixed to the side of the oven, wherein a paper tape inlet is provided on a side of the cooling box body close to the oven and a paper tape outlet is provided on a side of the cooling box body away from the oven; A cooling fan, which is installed on the cooling box; A cooling mechanism, which is arranged in the cooling box and connected to the cooling fan, and is used for blowing air to cool the upper and lower paper surfaces of the paper tape; An exhaust duct, which is installed at the upper end of the cooling box and connected to the interior of the cooling box; An air curtain mechanism is disposed in the cooling box and between the oven and the cooling mechanism, and is used to blow air to the paper tape at the paper tape inlet, with the blowing direction of the air curtain mechanism being toward the paper tape inlet; An air curtain fan is installed at the upper end of the cooling box body, the air inlet of the air curtain fan is connected to the exhaust air duct through an exhaust duct, and the air outlet is connected to the air curtain mechanism.

2. The cooling device for a dip coating and drying production line according to claim 1, characterized in that: The cooling mechanism includes an upper cooling nozzle assembly located above the paper tape, a lower cooling nozzle assembly located below the paper tape, an upper cooling air duct connecting the upper cooling nozzle assembly and the cooling fan, and a lower cooling air duct connecting the lower cooling nozzle assembly and the cooling fan.

3. The cooling device for the dip coating and drying production line according to claim 2, characterized in that: The upper cooling nozzle assembly includes an upper support seat and a plurality of upper cooling nozzles spaced apart on the upper support seat; the lower cooling nozzle assembly includes a lower support seat and a plurality of lower cooling nozzles spaced apart on the lower support seat.

4. The cooling device for a dip coating and drying production line according to claim 3, characterized in that: The plurality of upper cooling nozzles are arranged alternately with the plurality of lower cooling nozzles.

5. The cooling device for a dip coating and drying production line according to claim 2, characterized in that: The upper cooling air duct and the lower cooling air duct are connected to the cooling fan via a main air duct. The upper cooling air duct extends from the top of the cooling box to above the paper belt, and the lower cooling air duct extends from the top of the cooling box to below the paper belt.

6. The cooling device for a dip coating and drying production line according to claim 1, characterized in that: The air curtain mechanism includes an upper air curtain nozzle located above the paper tape, a lower air curtain nozzle located below the paper tape, an upper air curtain duct connecting the upper air curtain nozzle and the air curtain fan, and a lower air curtain duct connecting the lower air curtain nozzle and the air curtain fan, and the spray outlets of the upper air curtain nozzle and the lower air curtain nozzle are directed toward the paper tape inlet.

7. The cooling device for a dip coating and drying production line according to claim 6, characterized in that: The upper end of the upper air curtain air duct is connected to the air curtain fan and the lower end extends above the paper tape. The upper end of the lower air curtain air duct is connected to the upper air curtain air duct and the lower end extends below the paper tape.

8. The cooling device for a dip coating and drying production line according to claim 7, characterized in that: The upper air curtain nozzle and the lower air curtain nozzle are arranged symmetrically up and down.

9. The cooling device for a dip coating and drying production line according to claim 1, characterized in that: The exhaust pipe is provided with a butterfly valve for adjusting the opening.

10. The cooling device for a dip coating and drying production line according to claim 1, characterized in that: The cooling box body is provided with a partition extending in a vertical direction, the partition is located between the air curtain mechanism and the cooling mechanism and is provided with a through slot for a paper supply belt to pass through.

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