Metal surface drying machine with hot air circulation function

Abstract

The utility model relates to the technical field of drying equipment, in particular to a metal surface dryer with a hot air circulation function, which comprises a metal drying box, a plurality of conveying rollers are rotatably mounted on the inner side of the metal drying box, a top plate is fixedly mounted on the upper side of the metal drying box, and a hot air circulation mechanism is arranged on the top plate; the hot air circulation mechanism comprises an air suction hood which is fixedly installed on the top plate and communicates with the bottom of the top plate, rotating shafts are fixedly installed on the two sides of the conveying rollers, the inner sides of the conveying rollers are of a cavity structure, and a plurality of air outlet holes are evenly formed in the outer walls of the conveying rollers. The top plate side plate is fixedly provided with a condensation water tank. By means of the hot air circulation mechanism, water vapor in a hot air circulation path is condensed, liquefied and guided in, the hot air system is kept in a dry state, then the drying efficiency of metal components is guaranteed, secondary moisture regaining is prevented, and the practicability of the hot air system is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a metal surface drying machine with a hot air circulation function. Background Art

[0002] Drying of metal surfaces usually involves placing the metal workpiece that has undergone pre-treatment (such as cleaning, degreasing, etc.) under certain temperature and environmental conditions to accelerate the volatilization of moisture or solvent on its surface, thereby achieving the purpose of rapid drying.

[0003] The utility model patent with reference authorization announcement number CN215373198U has developed a metal surface dryer with hot air circulation function, including a drying equipment body for drying metal. The drying equipment body mainly includes a shell and a clamping mechanism arranged in the shell for fixing the metal to be dried. The top of the shell is provided with a top cover, and the top cover is provided with an exhaust hole. The clamping mechanism is arranged at the bottom of the top cover and extends to the inner cavity of the shell. The bottom of the shell is provided with a support seat, and a heating coil is provided on the lower inner wall of the shell; the exhaust hole of the top cover is provided with an exhaust duct and a hot air circulation duct through a connecting pipe with a three-way valve.

[0004] The above patent uses a hot air circulation system to dry the metal surface, but a large amount of water vapor will be accompanied during the metal drying process. The patent cannot remove the water vapor in the circulating hot air, so the circulating hot air is more humid, the drying rate of the metal is low and it is easy to cause secondary moisture. In order to solve the above technical drawbacks, we proposed a metal surface dryer with hot air circulation function. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a metal surface drying machine with a hot air circulation function.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A metal surface dryer with hot air circulation function, comprising a metal drying box, a plurality of conveying rollers rotatably mounted inside the metal drying box, a top plate fixedly mounted on the upper side of the metal drying box, and a hot air circulation mechanism provided on the top plate; the hot air circulation mechanism comprises an air suction hood, the air suction hood is fixedly mounted on the top plate and the air suction hood is communicated with the bottom of the top plate, a rotating shaft is fixedly mounted on both sides of the conveying roller, the inner side of the conveying roller is a cavity structure and a plurality of air outlet holes are evenly distributed on the outer wall of the conveying roller, the rotating shaft rotates and passes through to the outside of the metal drying box, a condensation water tank is fixedly mounted on the side plate of the top plate, and the air suction hood is fixedly mounted on the side plate of the metal drying box. A number of bronchos are installed on the side of the air hood, and the bronchos pass through the condensation water tank. A downpipe is installed on the lower side of the bronchos. A water collecting tank is fixedly installed on the bottom of the condensation water tank. The downpipe passes through the water collecting tank. A return air chamber is fixedly installed on the side wall of the condensation water tank. The return air chamber is connected with the outer ends of the several bronchos. A lower supporting pipe is installed at the bottom of the return air chamber. A connecting pipe is provided on the lower side of the lower supporting pipe. A fan is fixedly installed between the lower supporting pipe and the connecting pipe. An air injection hood is fixedly installed on the lower end of the connecting pipe. The air injection hood is screwed on the side wall of the metal drying box and the outer end of the rotating shaft passes into the inner side of the air injection hood.

[0008] Preferably, a heating wire is installed on the inner wall of the conveying roller.

[0009] Preferably, the part of the bronchial pipe located in the condensation water tank is arranged in a V shape, and the downpipe is located at the lowest point of the bronchial pipe.

[0010] Preferably, a water outlet pipe is installed on the side wall of the water collecting tank.

[0011] Preferably, a large gear is fixedly mounted on the outer end of the rotating shaft, and several of the large gears are meshed with each other. A driving motor is fixedly mounted on the side wall of the metal drying box, and a small gear is fixedly mounted on the output end of the driving motor, and the small gear is meshed with the large gear.

[0012] Preferably, the outer covers of the small gear and the large gear are provided with machine covers, and the machine covers are installed on the side walls of the metal drying box.

[0013] Preferably, an import slide and an export slide are respectively installed on both sides of the metal drying box, and a sealing door is rotatably installed on the upper side of the import slide and the export slide, and a counterweight is fixedly installed on the sealing door.

[0014] Preferably, a controller is fixedly mounted on the side wall of the metal drying box.

[0015] Compared with the related art, the metal surface drying machine with hot air circulation function proposed by the present invention has the following beneficial effects:

[0016] In the utility model, a metal surface dryer with hot air circulation function is provided, and by starting the fan in the hot air circulation mechanism, the connecting pipe, the gas injection hood, the rotating shaft, the conveying roller, the air outlet, the metal drying box, the air suction hood, the bronchial pipe, the return air cavity and the lower supporting pipe form a whole ventilation circulation system, and a blowing effect is formed from the air outlet in the ventilation system. At the same time, an electric heating wire is installed on the inner side of the conveying roller, and the wind blown out from the air outlet is hot air. When the metal component is conveyed on the conveying roller, its whole body will be heated by the hot air. The air is dried by the lower part, and the water vapor on its surface is taken out during drying and then enters the suction hood. When flowing in the bronchial pipe on the side of the suction hood, the wall temperature of the bronchial pipe in the condensation water tank is relatively low, and the water vapor will be cooled and liquefied. The liquefied water droplets form a water flow and converge into the sewer pipe on the lower side, and then discharged into the water collection tank at the bottom for collection. The water vapor in the hot air circulation path is condensed and liquefied, so that the hot air system remains dry, thereby ensuring the drying efficiency of the metal components, preventing secondary moisture, and enhancing the practicality of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a metal surface dryer with hot air circulation function proposed in this utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of a metal surface dryer with hot air circulation function proposed in this utility model Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the fully disassembled structure of a metal surface dryer with hot air circulation function proposed in this utility model. Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the fully disassembled structure of a metal surface dryer with hot air circulation function proposed in this utility model. Figure 2 ;

[0021] Figure 5 This is a partial three-dimensional structure diagram of a metal surface drying machine with hot air circulation function proposed in this utility model Figure 1 ;

[0022] Figure 6 This is a partial three-dimensional structure diagram of a metal surface drying machine with hot air circulation function proposed in this utility model Figure 2 ;

[0023] Figure 7 This is a partial three-dimensional structure diagram of a metal surface drying machine with hot air circulation function proposed in this utility model Figure 3 .

[0024] In the figure: 1. Metal drying box; 2. Inlet slide; 3. Sealing door; 4. Counterweight; 5. Outlet slide; 6. Controller; 7. Top plate; 8. Hot air circulation mechanism; 81. Suction hood; 82. Bronchial tube; 83. Condensate tank; 84. Downpipe; 85. Return air chamber; 86. Water collecting tank; 87. Outlet pipe; 88. Lower supporting pipe; 89. Fan; 810. Connecting pipe; 811. Gas injection hood; 9. Conveyor roller; 91. Rotating shaft; 92. Air outlet; 93. Large gear; 10. Drive motor; 11. Small gear; 12. Machine cover. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0026] Reference Figure 1-7 , a metal surface dryer with hot air circulation function: it includes a metal drying box 1, a plurality of conveying rollers 9 are rotatably installed inside the metal drying box 1, a top plate 7 is fixedly installed on the upper side of the metal drying box 1, and a hot air circulation mechanism 8 is provided on the top plate 7; the hot air circulation mechanism 8 includes an air suction hood 81, the air suction hood 81 is fixedly installed on the top plate 7 and the air suction hood 81 is connected to the bottom of the top plate 7, a rotating shaft 91 is fixedly installed on both sides of the conveying roller 9, the inner side of the conveying roller 9 is a cavity structure and a plurality of air outlet holes 92 are evenly distributed on the outer wall of the conveying roller 9, the rotating shaft 91 rotates and passes through to the outside of the metal drying box 1, a condensation water tank 83 is fixedly installed on the side plate of the top plate 7, and a plurality of bronchi 82 are installed on the side of the air suction hood 81. 82 passes through the condensation water tank 83, and a downpipe 84 is installed on the lower side of the bronchial pipe 82. A water collecting tank 86 is fixedly installed at the bottom of the condensation water tank 83. The downpipe 84 passes through the water collecting tank 86. A return air chamber 85 is fixedly installed on the side wall of the condensation water tank 83. The return air chamber 85 is connected to the outer ends of several bronchial pipes 82. A lower supporting pipe 88 is installed at the bottom of the return air chamber 85. A connecting pipe 810 is provided on the lower side of the lower supporting pipe 88. A fan 89 is fixedly installed between the lower supporting pipe 88 and the connecting pipe 810. An air injection hood 811 is fixedly installed on the lower end of the connecting pipe 810. The air injection hood 811 is screwed on the side wall of the metal drying box 1 and the outer end of the rotating shaft 91 passes into the inner side of the air injection hood 811. An electric heating wire is installed on the inner wall of the conveying roller 9.

[0027] In this embodiment, the bronchial pipe 82 is located in the condensation water tank 83 and is arranged in a V shape, and the downpipe 84 is located at the lowest point of the bronchial pipe 82 .

[0028] With the above arrangement, when the water vapor on the inner wall of the bronchial tube 82 cools and liquefies, the liquefied water droplets will gradually gather at the lower part of the bronchial tube 82 under the action of gravity, and then be introduced into the water collection tank 86 from the downpipe 84.

[0029] In this embodiment, a water outlet pipe 87 is installed on the side wall of the water collecting tank 86.

[0030] Through the above arrangement, the water outlet pipe 87 can guide the water flow gathered in the water collecting tank 86 into the water collecting tank 86.

[0031] In this method, a large gear 93 is fixedly mounted on the outer end of the rotating shaft 91, and several large gears 93 are meshed with each other. A driving motor 10 is fixedly mounted on the side wall of the metal drying box 1, and a small gear 11 is fixedly mounted on the output end of the driving motor 10, and the small gear 11 is meshed with the large gear 93. A machine cover 12 is provided on the outer side of the small gear 11 and the large gear 93, and the machine cover 12 is mounted on the side wall of the metal drying box 1.

[0032] Through the above-mentioned arrangement, when the drive motor 10 is started, the small gear 11 can be driven to rotate, and then through the synchronous meshing transmission effect of the small gear 11 and the large gear 93 and the large gear 93 and the large gear 93, the several rotating shafts 91 drive the conveying rollers 9 inside the metal drying box 1 to rotate synchronously, so as to convey the metal components inside the metal drying box 1.

[0033] In this embodiment, an inlet slide 2 and an outlet slide 5 are installed on both sides of the metal drying box 1. A sealing door 3 is rotatably installed on the upper side of the inlet slide 2 and the outlet slide 5, and a counterweight 4 is fixedly installed on the sealing door 3.

[0034] Through the above-mentioned arrangement, the counterweight block 4 enables the sealed door 3 to automatically reset vertically under the action of gravity. When the metal is exported from the export slide 5 to the outside of the metal drying box 1, the sealed door 3 will automatically open under the lateral pressure when the metal component is introduced. When the metal component passes through the sealed door 3, the sealed door 3 will automatically reset and close.

[0035] In this embodiment, a controller 6 is fixedly mounted on the side wall of the metal drying box 1 .

[0036] The working principle of the metal surface drying machine with hot air circulation function provided by the utility model is as follows:

[0037] During use, the metal components to be dried are introduced into the metal drying box 1. After introduction, the sealing door 3 will automatically reset under the gravity of the counterweight 4, so that the entire metal drying box 1 maintains a sealed environment. The drive motor 10 is started to drive the small gear 11 to rotate, and then through the synchronous meshing transmission of the small gear 11 and the large gear 93 and the large gear 93 and the large gear 93, the several rotating shafts 91 drive the conveying rollers 9 inside the metal drying box 1 to rotate synchronously, so as to convey the metal components inside the metal drying box 1. At the same time, the fan 89 and the heating wire in the conveying roller 9 are synchronously turned on. Under the action of the fan 89, air passes through the connecting pipe 810, the gas injection cover 811, the rotating shaft 91, the conveying roller 9, the air outlet 92, the metal drying box 1, and the suction cover. 81, bronchial pipe 82, return air cavity 85 and lower supporting pipe 88 form the entire ventilation circulation system. When the air is blown out from the air outlet 92, it is in a hot air state under the action of the electric heating wire. When the metal component is transported on the conveying roller 9, its entire body will be dried under the action of the hot air. During drying, the water vapor on its surface is taken out and then enters the suction hood 81. When flowing from the bronchial pipe 82 on the side of the suction hood 81, the wall temperature of the bronchial pipe 82 in the condensation tank 83 is relatively low, and then the water vapor will be cooled and liquefied. The liquefied water droplets form a water flow and converge into the lower water pipe 84 on the lower side, and then discharged into the water collection tank 86 at the bottom for collection, so that the water vapor in the hot air circulation path is condensed and liquefied, so that the hot air system remains dry, thereby ensuring the drying efficiency of the metal components.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A metal surface drying machine with hot air circulation function, characterized in that: It comprises a metal drying box (1), a plurality of conveying rollers (9) are rotatably mounted inside the metal drying box (1), a top plate (7) is fixedly mounted on the upper side of the metal drying box (1), and a hot air circulation mechanism (8) is provided on the top plate (7); The hot air circulation mechanism (8) includes an air suction hood (81), which is fixedly mounted on the top plate (7) and is connected to the bottom of the top plate (7). Rotating shafts (91) are fixedly mounted on both sides of the conveying roller (9). The inner side of the conveying roller (9) is a cavity structure and a plurality of air outlet holes (92) are evenly distributed on the outer wall of the conveying roller (9). The rotating shaft (91) rotates and passes through the outside of the metal drying box (1). A condensation water tank (83) is fixedly mounted on the side plate of the top plate (7). A plurality of bronchial pipes (82) are mounted on the side of the air suction hood (81). The bronchial pipes (82) pass through the condensation water tank (83). A downpipe (84) is connected to the lower side of the bronchial pipe (82). The condensation water tank (83) is fixedly mounted on the side plate of the top plate (7). A water collecting trough (86) is fixedly installed at the bottom of the trough (83), and the downpipe (84) passes through the water collecting trough (86). A return air chamber (85) is fixedly installed on the side wall of the condensed water trough (83), and the return air chamber (85) is connected with the outer ends of the plurality of bronchial tubes (82). A lower supporting pipe (88) is installed at the bottom of the return air chamber (85), and a connecting pipe (810) is provided on the lower side of the lower supporting pipe (88). A fan (89) is fixedly installed between the lower supporting pipe (88) and the connecting pipe (810), and an air injection hood (811) is fixedly installed at the lower end of the connecting pipe (810). The air injection hood (811) is screwed and installed on the side wall of the metal drying box (1), and the outer end of the rotating shaft (91) passes into the inner side of the air injection hood (811).

2. The metal surface drying machine with hot air circulation function according to claim 1, characterized in that: An electric heating wire is installed on the inner wall of the conveying roller (9).

3. The metal surface drying machine with hot air circulation function according to claim 1, characterized in that: The bronchial pipe (82) is located in the condensation water tank (83) and is arranged in a V shape. The downpipe (84) is located at the lowest point of the bronchial pipe (82).

4. The metal surface drying machine with hot air circulation function according to claim 1, characterized in that: A water outlet pipe (87) is installed on the side wall of the water collecting tank (86).

5. The metal surface drying machine with hot air circulation function according to claim 1, characterized in that: A large gear (93) is fixedly mounted on the outer end of the rotating shaft (91), and a plurality of the large gears (93) are meshed with each other. A driving motor (10) is fixedly mounted on the side wall of the metal drying box (1), and a small gear (11) is fixedly mounted on the output end of the driving motor (10), and the small gear (11) is meshed with the large gear (93).

6. The metal surface drying machine with hot air circulation function according to claim 5, characterized in that: The outer sides of the small gear (11) and the large gear (93) are covered with a machine cover (12), and the machine cover (12) is installed on the side wall of the metal drying box (1).

7. The metal surface drying machine with hot air circulation function according to claim 1, characterized in that: An inlet slide (2) and an outlet slide (5) are respectively installed on both sides of the metal drying box (1); a sealing door (3) is rotatably installed on the upper side of each of the inlet slide (2) and the outlet slide (5); and a counterweight (4) is fixedly installed on the sealing door (3).

8. The metal surface drying machine with hot air circulation function according to claim 1, characterized in that: A controller (6) is fixedly mounted on the side wall of the metal drying box (1).

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