Up-down blowing device of coating machine drying oven

Abstract

The utility model relates to the technical field of coating equipment, in particular to an up-down blowing device of a coating machine oven, which comprises an air drying box, the air drying box comprises an upper box body and a lower box body, the upper box body and the lower box body are of a separable structure, an upper air inlet liner is arranged in the upper box body, a lower air inlet liner is arranged in the lower box body, and the upper air inlet liner and the lower air inlet liner are arranged in the air drying box. A plurality of guide rollers installed in the lower box body are arranged between the upper air inlet inner container and the lower air inlet inner container, and a plurality of detachable air nozzle assemblies are installed on the sides, facing each other, of the upper air inlet inner container and the lower air inlet inner container. According to the up-and-down blowing device, the temperature of the other side without the coating can be quickly transferred into the coating, so that the internal quick temperature rise and humidity discharge of the coating are greatly improved, the whole air drying efficiency is higher, the temperature is more uniform, and the coating quality is improved. And the situation that subsequent procedures are affected by collapse of the coating on the surface of a product or too high humidity due to the fact that the coating surface is rapidly air-dried and the internal temperature is insufficient is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coating equipment, specifically, it is a kind of upper and lower blowing device of coating machine oven. BACKGROUND

[0002] Generally in coating production process, after coating is completed, product needs to be transported to drying oven for drying, and ordinary coating machine generally adopts upper blowing mode to blow hot air to coating surface, but for some special coating products, such as products with large coating amount, due to only single-side hot air drying, temperature of coating surface and coating inside is not uniform, so that surface temperature of coating surface is high and rapid air drying occurs, but internal temperature of coating still does not reach required drying temperature, so that there is large humidity in coating inside, due to coating surface has been dried, so that surface is prone to air hole, and surface will appear collapse phenomenon in serious case. INVENTION CONTENTS

[0003] In order to overcome defects in prior art, the utility model provides a kind of upper and lower blowing device of coating machine oven to solve the problems in the prior art.

[0004] The technical scheme adopted by the utility model to solve its technical problems is: a kind of upper and lower blowing device of coating machine oven, including air drying box, the air drying box includes upper box body and lower box body, the upper box body and lower box body are separable structure, the upper box body is provided with upper air inlet liner in, the lower box body is provided with lower air inlet liner in, a plurality of guide rollers are arranged between the upper air inlet liner and the lower air inlet liner and installed in the lower box body, a plurality of detachable air nozzle assemblies are installed on the side of the upper air inlet liner and the lower air inlet liner.

[0005] In the upper and lower blowing device of coating machine oven, one end of the upper air inlet liner is connected and communicated with an upper air inlet port, the first arc-shaped air deflector is arranged at the end of the upper air inlet liner close to the upper air inlet port, one end of the lower air inlet liner is connected and communicated with a lower air inlet port, and the second arc-shaped air deflector is arranged at the end of the lower air inlet liner close to the lower air inlet port.

[0006] In the upper and lower blowing device of coating machine oven, a plurality of protruding air outlets are arranged on the side of the upper air inlet liner and the lower air inlet liner, a snap ring is arranged on the air outlet, and the air nozzle assembly is slidably connected to the snap ring.

[0007] In the upper and lower blowing device of coating machine oven, the air nozzle assembly includes an air nozzle body, the air nozzle body is provided with a clamping ear on both sides of the end close to the snap ring, the clamping ear is provided with a clamping cavity, the inner side of the clamping cavity is an open end, and the clamping cavity is slidably connected to the clamping ear.

[0008] The air nozzle body is straight-cylindrical, and the end of the air nozzle body away from the clamping ring is an air outlet end, and a mesh plate is arranged on the air outlet end.

[0009] The air nozzle body is straight-cylindrical, and the end of the air nozzle body away from the clamping ring is an air outlet end, and a mesh plate is arranged on the air outlet end.

[0010] The air nozzle body is straight-cylindrical, and the end of the air nozzle body away from the clamping ring is an air outlet end, and a mesh plate is arranged on the air outlet end.

[0011] The air nozzle body is straight-cylindrical, and the end of the air nozzle body away from the clamping ring is an air outlet end, and a mesh plate is arranged on the air outlet end. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a side view structural schematic diagram of the upper and lower air blowing device.

[0013] Figure 2 It is a side view structural schematic diagram of the upper and lower air blowing device. Figure 1 It is an enlarged structural schematic diagram of A in the figure.

[0014] Figure 3 It is a structural schematic diagram of the first embodiment of the air nozzle body.

[0015] Figure 4 It is a structural schematic diagram of the second embodiment of the air nozzle body.

[0016] In the figure: upper box body 1, lower box body 2, upper air inlet inner liner 3, lower air inlet inner liner 4, guide roller 5, air nozzle assembly 6, narrowing section 7, upper air inlet air outlet 8, lower air inlet air outlet 9, air outlet 10, first arc-shaped air deflector 11, second arc-shaped air deflector 12, telescopic air cylinder 13, sealing strip 14, air outlet 15, clamping ring 16, air nozzle body 17, clamping ring 18, clamping cavity 19, mesh plate 20, air outlet nozzle 21. DETAILED DESCRIPTION

[0017] In combination with the above, the upper and lower air blowing device has the advantages that the product is conveyed between the upper air inlet inner liner and the lower air inlet inner liner by the guide roller, the upper and lower surfaces of the product are blown and dried by hot air by the air nozzle assembly on the upper air inlet inner liner and the lower air inlet inner liner at the same time, the upper and lower surfaces of the coating surface are heated at the same time, the temperature can be transmitted from one side of the coating to the inside at the same time, and the temperature on the other side without coating can be quickly transmitted to the inside of the coating, so that the internal rapid heating and humidity discharge of the coating are greatly improved, the whole drying efficiency is higher, the temperature is more uniform, the coating on the surface of the product is prevented from collapsing due to insufficient internal temperature caused by rapid drying of the coating surface, and the subsequent process is affected due to excessive humidity. Figures 1 to 2The upper and lower blowing devices of a coating machine oven shown, including a drying box, the drying box includes an upper box body 1 and a lower box body 2, the upper box body 1 and the lower box body 2 are separable structure, the upper box body 1 is provided with an upper air inlet liner 3, the lower box body 2 is provided with a lower air inlet liner 4, a plurality of guide rollers 5 are arranged between the upper air inlet liner 3 and the lower air inlet liner 4 and installed in the lower box body 2, a plurality of detachable air nozzle assemblies 6 are installed on the side of the upper air inlet liner 3 and the lower air inlet liner 4 facing each other; the product is conveyed between the upper air inlet liner 3 and the lower air inlet liner 4 by the guide roller 5, the upper and lower surfaces of the product are dried by hot air at the same time by the air nozzle assemblies 6 on the upper air inlet liner 3 and the lower air inlet liner 4, so that the upper and lower surfaces of the coating are heated at the same time, and the temperature can be transferred from one side of the coating to the inside at the same time, and the temperature on the other side without coating can be quickly transferred to the inside of the coating, thereby greatly improving the rapid heating and humidity discharge of the inside of the coating, making the whole drying efficiency higher and the temperature more uniform, preventing the coating on the surface of the product from collapsing or being too wet to affect the subsequent process due to rapid drying of the coating surface. Moreover, the upper box body 1 and the lower box body 2 of the embodiment can be separated, and the air nozzle assembly 6 can also be detached and separated, thereby facilitating cleaning and maintenance.

[0018] One end of the upper air inlet liner 3 of the embodiment is communicated with an upper air inlet port 8, the end of the upper air inlet liner 3 close to the upper air inlet port 8 is provided with a first arc-shaped air deflector 11, one end of the lower air inlet liner 4 is communicated with a lower air inlet port 9, and the end of the lower air inlet liner 4 close to the lower air inlet port 9 is provided with a second arc-shaped air deflector 12; the arc-shaped air deflector 11 can quickly fill the upper air inlet liner 3 or the lower air inlet liner 4 with hot air, so that each air nozzle assembly 6 can blow air more uniformly.

[0019] A plurality of protruding air outlets 15 are arranged on the side of the upper air inlet liner 3 and the lower air inlet liner 4 facing each other, a snap ring 16 is arranged on the air outlet 15, and the air nozzle assembly 6 is slidably connected to the snap ring 16, so that the air nozzle assembly 6 can be easily disassembled on the snap ring 16.

[0020] Specifically, the air nozzle assembly 6 includes an air nozzle body 17, the air nozzle body 17 is provided with a clamping ear 18 on both sides of the end close to the snap ring 16, a clamping cavity 19 is arranged in the clamping ear 18, the inner side of the clamping cavity 19 is an open end, and the clamping cavity 19 is slidably connected to the clamping ear 18, so that only sliding operation is needed during disassembly, which is simple and convenient to operate.

[0021] It is worth mentioning that the lower box 2 of the embodiment is connected with the telescopic air cylinder 13, the cylinder body of the telescopic air cylinder 13 is fixed on the outer machine body or equipment, the sealing strip 14 is arranged on the edge of the lower box 2, so that after the lower box 2 is combined with the upper box 1, the edge can be better sealed, the exhaust port 10 is arranged in the lower box 2, the wind in the air drying box can be exhausted through the exhaust port 10, in some embodiments, the exhausted hot air can be transported to the hot blast stove through the pipeline to reuse the heat, and is distributed to the upper air inlet liner 3 and the lower air inlet liner 4.

[0022] As Figure 3 shown, the air nozzle body 17 in some embodiments is a straight cylinder, the end of the air nozzle body 17 away from the gusset 18 is an air outlet end, and a mesh plate 20 is arranged on the air outlet end.

[0023] As Figure 4 shown, in some other embodiments, the end of the air nozzle body 17 away from the gusset 18 is provided with a narrowing section 7, the end of the narrowing section 7 away from the gusset 18 is an air outlet nozzle 21, and the inner diameter of the air outlet nozzle 21 gradually widens in the direction of the gusset 18, so that the air speed of the air outlet nozzle 21 when outputting the hot air is greater.

[0024] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. An upper and lower air blowing device for a coating machine drying oven, comprising a drying chamber, characterized in that, The drying box includes an upper box and a lower box, which are separable. The upper box contains an upper air inlet liner, and the lower box contains a lower air inlet liner. Multiple guide rollers installed in the lower box are arranged between the upper and lower air inlet liners. Multiple detachable air nozzle assemblies are installed on the side of the upper and lower air inlet liners that face each other.

2. The upper and lower blowing device of a coating machine oven according to claim 1, characterized in that, One end of the upper air inlet liner is connected to an upper air inlet, and the end of the upper air inlet liner near the upper air inlet is provided with a first arc-shaped air guide plate. One end of the lower air inlet liner is connected to a lower air inlet, and the end of the lower air inlet liner near the lower air inlet is provided with a second arc-shaped air guide plate.

3. The upper and lower blowing device of a coating machine oven according to claim 1, characterized in that, Multiple protruding air outlets are provided on one side of the upper and lower air inlet liner facing each other. Each air outlet is provided with a retaining ring, and the nozzle assembly is slidably engaged with the retaining ring.

4. The upper and lower blowing device of a coating machine oven according to claim 3, characterized in that, The nozzle assembly includes a nozzle body, and the nozzle body has ear clips on both sides near the retaining ring. Each ear clip has a retaining cavity, and one end of the retaining cavity is open. The retaining cavity is slidably engaged with the ear clip.

5. The upper and lower blowing device of a coating machine oven according to claim 4, characterized in that, The nozzle body is cylindrical, and the end of the nozzle body away from the ear is the air outlet end, which is covered with a mesh plate.

6. The upper and lower blowing device of a coating machine oven according to claim 4, characterized in that, The nozzle body has a narrowing section at the end away from the retainer, and the end of the narrowing section away from the retainer is the air outlet. The inner diameter of the air outlet gradually widens towards the retainer.

7. The upper and lower blowing device of a coating machine oven according to claim 1, characterized in that, A telescopic cylinder is connected to the lower housing, a sealing strip is provided on the edge of the lower housing, and an exhaust port is provided inside the lower housing.

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