Low-temperature drying device for metal surface treatment

Abstract

The utility model relates to drying device technical field discloses a kind of low-temperature drying device for metal surface treatment, and the left and right two side ends in the drying box are fixedly installed with infrared heating tube, and the outside top end of the drying box is equipped with circulating hot air mechanism between inside side end, the outside bottom end of the drying box is equipped with rotating mechanism between inside bottom end, the utility model is in drying effect, by the cooperation setting of infrared heating tube, temperature sensor and circulating hot air mechanism, realize low-temperature rapid drying, avoid metal workpiece from high temperature damage, simultaneously through the setting of air deflector, flow guide groove, rotating mechanism and bearing platform, ensure that all-around even drying, reduce rework;Energy consumption is effectively reduced heat loss and energy consumption by the setting of rock wool insulation layer, save cost;By controller and control panel are automatically operated according to preset parameter, real-time monitoring adjusts temperature, guarantee drying stable and reliable, reduce manual intervention, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, specifically to a low-temperature drying device for metal surface treatment. Background Technology

[0002] In metal surface treatment processes, such as electroplating, spraying, and chemical coating, the metal workpiece usually needs to be dried after the process is completed to remove residual moisture or solvents from the surface and ensure the quality and performance of the coating or plating.

[0003] Currently, most common drying methods employ high-temperature drying equipment. While high-temperature drying can rapidly evaporate moisture, it presents several problems. On one hand, high temperatures can easily cause surface deformation and oxidation of metal workpieces, affecting their appearance and mechanical properties. On the other hand, high-temperature drying consumes a lot of energy, resulting in high operating costs. Existing low-temperature drying devices have low drying efficiency and cannot achieve uniform hot air circulation, leading to uneven drying of metal workpieces. Some areas may not achieve the desired drying effect, requiring multiple rework processes, reducing production efficiency and increasing production costs. Therefore, a low-temperature drying device for metal surface treatment is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a low-temperature drying device for metal surface treatment, which solves the problem in the prior art that the uniform circulation of hot air cannot be achieved, resulting in uneven drying of metal workpieces and some areas that may not achieve the desired drying effect.

[0005] This utility model provides the following technical solution: a low-temperature drying device for metal surface treatment, including a drying box, a plurality of support legs fixedly connected to the bottom of the drying box, a sealed door installed on the side of the drying box, an observation window installed on the side of the sealed door, infrared heating tubes fixedly installed on both the left and right sides inside the drying box, a temperature sensor installed between the inner side and the outer side of the drying box, a circulating hot air mechanism provided between the outer top and the inner side of the drying box, a rotating mechanism provided between the outer bottom and the inner bottom of the drying box, and two clamping mechanisms symmetrically arranged at the top of the rotating mechanism.

[0006] As a preferred embodiment of the above technical solution, the circulating hot air mechanism includes a circulating fan, which is fixedly installed on the top of the drying chamber. An air box is fixedly installed between the top and the side of the drying chamber. The air box is connected to the circulating fan. Several ventilation openings are provided at the top of the air box, and several air outlets are provided at the side of the air box.

[0007] As a preferred embodiment of the above technical solution, each of the air outlets is fixedly connected to a guide plate at its bottom, and each guide plate is inclined.

[0008] As a preferred embodiment of the above technical solution, each of the air guide plates has several flow channels at its top, and the bottom of each flow channel is wavy.

[0009] As a preferred embodiment of the above technical solution, the rotating mechanism includes a motor, which is fixedly installed at the bottom of the outside of the drying box. A rotating rod is installed at the output end of the motor and inserted into the inside of the drying box. A support is fixedly connected to the top of the rotating rod, and a plurality of round holes are opened at the top of the support.

[0010] As a preferred embodiment of the above technical solution, the clamping mechanism includes a vertical plate, which is fixedly connected to the top of the support platform. Side plates are fixedly connected to both the left and right sides of the vertical plate. A screw is threadedly connected to the side end of the vertical plate. A knob is fixedly connected to the side end of the screw. A clamping plate is rotatably provided at the end of the screw away from the knob. Two guide rods are fixedly connected to the side end of the clamping plate. Both guide rods are inserted into the side end of the side plate.

[0011] As a preferred embodiment of the above technical solution, a controller and a control panel are installed on the external side of the drying oven. The infrared heating tube, temperature sensor, circulating fan and motor are all connected to the electrical components of the controller, and the controller is electrically connected to the control panel.

[0012] As a preferred embodiment of the above technical solution, the drying oven has an internal insulation layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In terms of drying effect, this invention achieves rapid drying at low temperatures through the coordinated use of infrared heating tubes, temperature sensors, and a circulating hot air mechanism. This prevents metal workpieces from deforming or oxidizing due to high temperatures, which would affect their appearance and mechanical properties. Simultaneously, the design of air guide plates, guide channels, a rotating mechanism, and a support platform ensures uniform drying from all directions, reducing rework and lowering production costs. Regarding energy consumption, the rock wool insulation layer effectively reduces heat loss and energy consumption, saving costs. The controller and control panel operate automatically according to preset parameters, monitoring and adjusting the temperature in real time to ensure stable and reliable drying, reducing manual intervention and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a low-temperature drying device for metal surface treatment.

[0016] Figure 2 A schematic diagram of the internal structure of a low-temperature drying device for metal surface treatment. Figure 1 ;

[0017] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the diagram;

[0018] Figure 4 A schematic diagram of the internal structure of a low-temperature drying device for metal surface treatment. Figure 2 ;

[0019] Figure 5 This is a three-dimensional structural diagram of the clamping mechanism of a low-temperature drying device for metal surface treatment.

[0020] In the diagram: 1. Drying oven; 101. Insulation layer; 102. Support leg; 103. Sealed door; 104. Observation window; 2. Infrared heating tube; 201. Temperature sensor; 3. Circulating hot air mechanism; 301. Circulating fan; 302. Air box; 303. Ventilation port; 304. Air outlet; 305. Air guide plate; 306. Air guide groove; 4. Rotating mechanism; 401. Motor; 402. Rotating rod; 403. Support platform; 404. Round hole; 5. Clamping mechanism; 501. Vertical plate; 502. Side plate; 503. Screw; 504. Knob; 505. Clamping plate; 506. Guide rod; 6. Controller; 601. Control panel. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] like Figures 1-5 As shown, this utility model provides a technical solution: a low-temperature drying device for metal surface treatment, including a drying chamber 1. The drying chamber 1 has an internal insulation layer 101 made of rock wool, which effectively reduces heat loss and energy consumption, saving costs. Several support legs 102 are fixedly connected to the bottom of the drying chamber 1. A sealing door 103 is installed on the side of the drying chamber 1, and an observation window 104 is installed on the side of the sealing door 103. Infrared heating tubes 2 are fixedly installed on both the left and right sides inside the drying chamber 1. A temperature sensor 201 is installed between the inner and outer sides of the drying chamber 1. A circulating hot air mechanism 3 is provided between the outer top and inner side of the drying chamber 1, and a rotating mechanism 4 is provided between the outer bottom and inner bottom of the drying chamber 1. Two clamping mechanisms 5 are symmetrically arranged at the top of the rotating mechanism 4. In terms of drying effect, this device achieves low-temperature rapid drying through the coordinated arrangement of infrared heating tube 2, temperature sensor 201 and circulating hot air mechanism 3, avoiding damage to metal workpieces due to high temperature. The rotating mechanism 4 drives the metal workpiece to rotate, ensuring uniform drying in all directions and reducing rework. In terms of energy consumption, the rock wool insulation layer 101 effectively reduces heat loss and energy consumption, saving costs.

[0023] As one implementation method in this embodiment, such as Figure 2 , Figure 3 and Figure 4 As shown, the circulating hot air mechanism 3 includes a circulating fan 301, which is fixedly installed on the top of the drying chamber 1. An air box 302 is fixedly installed between the top and side of the interior of the drying chamber 1. The air box 302 communicates with the circulating fan 301. Several ventilation openings 303 are provided at the top of the air box 302, and several air outlets 304 are provided at the side of the air box 302. A guide plate 305 is fixedly connected to the bottom of each air outlet 304. Each guide plate 305 is inclined, and several guide grooves 306 are provided at the top of each guide plate 305. The bottom of each guide groove 306 is wavy. In practice, the guide plate 305 is inclinedly installed inside the drying chamber 1 and located at the air outlet. Below 304, utilizing the principles of gravity and aerodynamics, hot air is blown out from the air outlet 304 and guided by the inclined surface of the air guide plate 305, it flows along the inclined direction, thereby pushing the hot air to form a directional flow trend in the drying chamber 1. The hot air starts from the air outlet 304, is guided by the air guide plate 305, and flows towards the metal workpiece. The hot air blown out by the circulating fan 301 has a certain direction and speed. When the hot air comes into contact with the corrugated guide groove 306, it will continuously change its flow direction at the convex and concave parts of the wave. The originally straight flow of hot air is dispersed and guided to diffuse at different angles, so that the hot air is no longer concentrated on a certain area, but can cover all parts of the metal workpiece, thereby achieving uniform hot air drying.

[0024] As one implementation method in this embodiment, such as Figure 2 , Figure 4 and Figure 5As shown, the rotating mechanism 4 includes a motor 401, which is fixedly installed on the bottom of the drying chamber 1. A rotating rod 402 is installed on the output end of the motor 401 and inserted into the interior of the drying chamber 1. A support 403 is fixedly connected to the top of the rotating rod 402, and several round holes 404 are opened on the top of the support 403. A controller 6 and a control panel 601 are installed on the outer side of the drying chamber 1. The infrared heating tube 2, temperature sensor 201, circulating fan 301, and motor 401 are all electrically connected to the controller 6. The controller 6 is electrically connected to the control panel 601. The clamping mechanism 5 includes a vertical plate 501, which is fixedly connected to the top of the support 403. Side plates 502 are fixedly connected to the left and right sides of the vertical plate 501. A screw 503 is threadedly connected, and a knob 504 is fixedly connected to the side end of the screw 503. A clamping plate 505 is rotatably mounted on the end of the screw 503 away from the knob 504. Two guide rods 506 are fixedly connected to the side end of the clamping plate 505. Both guide rods 506 are inserted into the side end of the side plate 502. In practice, rotating each knob 504 drives the screw 503 to rotate. During the movement of the screw 503, the clamping plate 505 can be moved horizontally to clamp and fix the metal workpiece due to the limiting effect of the guide rods 506. This facilitates the stable drying of the metal workpiece. The motor 401 drives the rotating rod 402 to rotate, which in turn drives the support platform 403 to rotate. The support platform 403 can then drive the metal workpiece to rotate, ensuring that all parts of the metal workpiece can fully contact the hot air for uniform drying.

[0025] Furthermore, the temperature sensor 201 is a PT100 resistance temperature sensor, the circulating fan 301 is a Siemens EC fan (which can be a Siemens G2E145-AF47-11), the controller 6 is a Siemens S7-1200, the control panel 601 is a Siemens TP700 Comfort, and the motor 401 is a stepper motor 57HS118.

[0026] Working principle: First, place the metal workpiece on the support platform 403. Then, rotate each knob 504 to drive the screw 503. During the movement of the screw 503, the guide rod 506 limits the clamping plate 505, allowing the clamping plate 505 to move horizontally and clamp and fix the metal workpiece, facilitating stable drying. Then, close the sealing door 103, set the drying temperature and time parameters on the control panel 601, and start the equipment. The controller 6 controls the infrared heating tube 2 to start heating according to the preset parameters. Temperature sensor 201 monitors the temperature inside drying oven 1 in real time and feeds the data back to controller 6. When the temperature reaches the preset value, controller 6 controls infrared heating tube 2 to maintain a constant temperature. At the same time, circulating fan 301 starts, blowing hot air into drying oven 1 through air box 302 and air outlet 304. The hot air is evenly blown onto the metal workpiece under the guidance of air guide plate 305 and guide groove 306. The use of circulating fan 301 realizes the circulation of hot air inside drying oven 1. Motor 401 drives rotating rod 402 to rotate, which in turn drives support platform 403 to rotate. The unit 403 can rotate the metal workpiece, ensuring that all parts of the workpiece are fully exposed to hot air for uniform drying. During the drying process, the temperature sensor 201 continuously monitors the temperature. If the temperature fluctuates, the controller 6 adjusts the heating power of the heating tube in a timely manner to ensure a stable drying temperature. When the preset drying time is reached, the equipment automatically stops operating, the sealing door 103 is opened, and the dried metal workpiece is removed. Therefore, in terms of drying effect, this device achieves low-temperature rapid drying through the coordinated setup of the infrared heating tube 2, temperature sensor 201, and circulating hot air mechanism 3, avoiding surface deformation and oxidation of the metal workpiece due to high temperatures, which would affect its appearance and mechanical properties. At the same time, the setup of the air guide plate 305, the guide channel 306, and the support platform 403 ensures uniform drying from all directions, reducing rework and lowering production costs. In terms of energy consumption, the rock wool insulation layer 101 effectively reduces heat loss and energy consumption, saving costs. The controller 6 and control panel 601 operate automatically according to preset parameters, monitoring and adjusting the temperature in real time to ensure stable and reliable drying, reduce manual intervention, and improve production efficiency.

[0027] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A low-temperature drying device for metal surface treatment, comprising a drying chamber (1), wherein a plurality of support legs (102) are fixedly connected to the bottom of the drying chamber (1), and a sealing door (103) is installed on the side of the drying chamber (1), and an observation window (104) is installed on the side of the sealing door (103), characterized in that: Infrared heating tubes (2) are fixedly installed on both the left and right sides inside the drying box (1). A temperature sensor (201) is installed between the inner side and the outer side of the drying box (1). A circulating hot air mechanism (3) is provided between the outer top and the inner side of the drying box (1). A rotating mechanism (4) is provided between the outer bottom and the inner bottom of the drying box (1). Two clamping mechanisms (5) are symmetrically arranged at the top of the rotating mechanism (4).

2. The low-temperature drying apparatus for metal surface treatment according to claim 1, characterized in that: The circulating hot air mechanism (3) includes a circulating fan (301), which is fixedly installed on the top of the drying box (1). A wind box (302) is fixedly installed between the top and the side of the drying box (1). The wind box (302) is connected to the circulating fan (301). The top of the wind box (302) has several ventilation openings (303), and the side of the wind box (302) has several air outlets (304).

3. The low-temperature drying apparatus for metal surface treatment according to claim 2, characterized in that: Each of the air outlets (304) is fixedly connected to a guide plate (305) at its bottom end, and each of the guide plates (305) is inclined.

4. The low-temperature drying apparatus for metal surface treatment according to claim 3, characterized in that: Each of the air guide plates (305) has several guide grooves (306) at its top end, and the bottom end of each guide groove (306) is wavy.

5. A low-temperature drying apparatus for metal surface treatment according to claim 2, characterized in that: The rotating mechanism (4) includes a motor (401), which is fixedly installed at the bottom of the outside of the drying box (1). A rotating rod (402) is installed at the output end of the motor (401). The rotating rod (402) is inserted into the inside of the drying box (1). A support (403) is fixedly connected to the top of the rotating rod (402). Several round holes (404) are opened at the top of the support (403).

6. The low-temperature drying apparatus for metal surface treatment according to claim 5, characterized in that: The clamping mechanism (5) includes a vertical plate (501), which is fixedly connected to the top of the support platform (403). Side plates (502) are fixedly connected to both the left and right sides of the vertical plate (501). A screw (503) is threadedly connected to the side of the vertical plate (501). A knob (504) is fixedly connected to the side of the screw (503). A clamping plate (505) is rotatably provided at the end of the screw (503) away from the knob (504). Two guide rods (506) are fixedly connected to the side of the clamping plate (505). Both guide rods (506) are inserted into the side of the side plate (502).

7. A low-temperature drying apparatus for metal surface treatment according to claim 5, characterized in that: The drying oven (1) is equipped with a controller (6) and a control panel (601) on its external side. The infrared heating tube (2), temperature sensor (201), circulating fan (301) and motor (401) are all connected to the controller (6) by electrical components. The controller (6) is electrically connected to the control panel (601).

8. The low-temperature drying apparatus for metal surface treatment according to claim 1, characterized in that: The drying oven (1) has an internal insulation layer (101).

Images