A drying device for electrostatic spraying
By introducing a rotating rod, a placement platform, bevel gears, and an adjustment mechanism into the electrostatic spraying drying device, the problems of uneven heating and low drying efficiency were solved, achieving uniform drying of the workpiece surface and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU PINGUAN MASCH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional electrostatic spraying drying equipment suffers from problems such as poor heating uniformity and low drying efficiency.
The design incorporates a rotating rod, a placement platform, bevel gears, a hook, an adjustment mechanism, and an air guide hood. The workpiece rotates within the drying chamber, and the hot airflow blowing from the bottom of the air guide hood continuously changes, ensuring that the workpiece surface is heated evenly.
This ensures that all parts of the workpiece surface receive heat evenly, avoiding local over-baking or under-drying, improving the consistency of product surface quality, and reducing the defect rate.
Smart Images
Figure CN224358813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying equipment technology, and in particular to a drying device for electrostatic spraying. Background Technology
[0002] In modern industrial production, electrostatic spraying technology, with its advantages of high efficiency, uniform coating, and high paint utilization, is widely used in automobile manufacturing, home appliance production, metal furniture, and surface treatment of plastic products. After electrostatic spraying, the coating on the workpiece surface needs to be dried and cured in a timely manner to ensure that the coating adheres firmly to the workpiece surface, forming a protective film with good wear resistance, corrosion resistance, and aesthetics. The quality of the drying process directly affects the performance and appearance of the final product; therefore, the performance of the drying equipment used in electrostatic spraying is crucial to the entire production process.
[0003] Traditional electrostatic spraying drying equipment mostly uses hot air circulation. The hot air circulation drying equipment sends heated air into the drying chamber through a fan, and the coating is dried by heat exchange between the hot air and the workpiece surface. Although this method has a relatively simple equipment structure and low cost, it has problems such as poor heating uniformity and low drying efficiency. Therefore, a drying device for electrostatic spraying was designed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drying device for electrostatic spraying.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A drying device for electrostatic spraying includes a drying chamber with a feed inlet on one side. Support legs are fixedly connected to both sides of the bottom of the drying chamber. An electric telescopic rod is fixedly connected to the bottom of the drying chamber away from the feed inlet via a connecting block. An L-shaped baffle is fixedly connected to the other end of the electric telescopic rod, and the L-shaped baffle is adapted to the feed inlet of the drying chamber. A rotating rod is rotatably connected to the top center of the L-shaped baffle, and a placement platform is fixedly connected to the top of the rotating rod. A bevel gear is fixedly fitted on the circumferential surface of the rotating rod. An L-shaped rod is fixedly connected to the top edge of the placement platform. A fixing plate is fixedly connected to the top side of the L-shaped baffle near the drying chamber, and one end of the top of the L-shaped rod is rotatably connected to the bottom of the fixing plate. A hook is fixedly connected to the bottom of the top of the L-shaped rod.
[0007] Preferably, both sides of the top of the L-shaped baffle are fixedly connected to protruding plates, and the ends of the two protruding plates near the drying chamber are fixedly connected to guide rods. Fixing blocks are slidably fitted on the circumferential surfaces of the two guide rods, and threaded nuts that are compatible with the guide rods are provided on the two fixing blocks. The two fixing blocks are fixedly connected to the outside of the drying chamber.
[0008] Preferably, a guide hood is fixedly connected to the top of the drying chamber, and the top of the drying chamber is connected to the guide hood. The bottom end of the guide hood is fixedly connected to one side of the outer wall of the drying chamber, and an air outlet adapted to the guide hood is opened on one side of the drying chamber. A first motor is fixedly connected to the outer wall of the guide hood near the bottom, and the output end of the first motor passes through the guide hood and is fixedly connected to a fan blade through a coupling. Through the arrangement of the guide hood and the first motor, the heat inside the drying chamber can be circulated, improving the efficiency of workpiece drying. An adjustment mechanism is provided on one side of the inner wall of the drying chamber near the guide hood.
[0009] Preferably, the adjustment mechanism includes side plates fixedly connected to the inner wall of the drying chamber on both sides of the air outlet of the air guide hood. Multiple guide plates are rotatably connected at equal distances between the two side plates. Each guide plate has a strip-shaped hole in its center. Vertical holes are formed on both side plates. A sliding block is slidably connected in each vertical hole. Multiple drive rods are fixedly connected between the two sliding blocks. Each drive rod is slidably connected in adjacent strip-shaped holes. The same sliding rod is fixedly connected between the top and bottom of each vertical hole. Each sliding rod slides through adjacent sliding blocks. A circular hole adapted to the sliding rod is formed on each sliding block. The same U-shaped rod is fixedly connected to the outer wall of the two sliding blocks. Through the setting of the adjustment mechanism, the direction of the hot airflow blown into the bottom of the air guide hood changes continuously.
[0010] Preferably, a second motor is fixedly connected to the outside of the drying oven near the bottom, and the output end of the second motor passes through the drying oven and is fixedly connected to a rotating shaft via a coupling. A bevel gear is fixedly connected to the other end of the rotating shaft, and the bevel gear is adapted to the bevel gear. An eccentric wheel is fixedly sleeved in the middle of the rotating shaft, and the eccentric wheel is adapted to the U-shaped rod.
[0011] Preferably, heating plates are fixedly connected to both sides of the inner wall of the drying oven, and a temperature sensor is fixedly connected to the top of the inner side of the drying oven. A control panel is fixedly connected to one side of the outer wall of the drying oven, and the control panel is electrically connected to the temperature sensor and the heating plates respectively. Through the cooperation of the control panel, the temperature sensor and the heating plates, the temperature inside the drying oven can be controlled in real time.
[0012] The beneficial effects of this utility model are as follows:
[0013] By employing technologies such as a rotating rod, placement platform, bevel gear, hook, adjustment mechanism, and air guide hood, after the workpiece enters the drying chamber through the L-shaped baffle, the rotation of the second motor causes the workpiece to rotate, facilitating uniform heating. Simultaneously, the hot air blown out from the bottom of the air guide hood is adjusted by the adjustment mechanism, resulting in continuous changes in airflow and further improving the uniformity of workpiece heating. This effectively solves the problem of uneven workpiece heating mentioned in the background technology, thereby ensuring that all parts of the workpiece surface can receive heat evenly, avoiding local over-drying or under-drying, allowing the coating to cure more fully, improving the consistency of product surface quality, and reducing the defect rate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a drying device for electrostatic spraying proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the L-shaped baffle of the electrostatic spraying drying device proposed in this utility model;
[0016] Figure 3 This is a cross-sectional view of the drying box of an electrostatic spraying drying device proposed in this utility model.
[0017] Figure 4 This is a schematic diagram of the adjusting mechanism of a drying device for electrostatic spraying proposed in this utility model.
[0018] In the diagram: 1. Drying oven; 101. Support leg; 102. Electric telescopic rod; 103. Fixing block; 104. Control panel; 105. Temperature sensor; 2. L-shaped baffle; 201. Guide rod; 202. Protruding plate; 203. Fixing plate; 3. Rotating rod; 301. Placement platform; 302. Bevel gear; 303. L-shaped rod; 304. Hook; 4. Heating plate; 5. Air guide hood; 501. First motor; 6. Second motor; 601. Bevel spur gear; 602. Eccentric wheel; 7. Adjustment mechanism; 701. Side plate; 702. Vertical hole; 703. Sliding block; 704. Drive rod; 705. Guide plate; 706. Strip hole; 707. U-shaped rod. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figure 1-4A drying device for electrostatic spraying includes a drying chamber 1. A feed inlet is provided on one side of the drying chamber 1. Support legs 101 are fixedly connected to both sides of the bottom of the drying chamber 1. An electric telescopic rod 102 is fixedly connected to the bottom of the drying chamber 1 away from the feed inlet via a connecting block. An L-shaped baffle 2 is fixedly connected to the other end of the electric telescopic rod 102, and the L-shaped baffle 2 is adapted to the feed inlet of the drying chamber 1. A rotating rod 3 is rotatably connected to the top center of the L-shaped baffle 2, and a placement platform 301 is fixedly connected to the top of the rotating rod 3. A bevel gear 302 is fixedly sleeved on the circumferential surface of the rotating rod 3. An L-shaped rod 303 is fixedly connected to the top edge of the placement platform 301. A fixing plate 203 is fixedly connected to the top side of the L-shaped baffle 2 near the drying chamber 1, and one end of the top of the L-shaped rod 303 is rotatably connected to the bottom of the fixing plate 203. A hook 304 is fixedly connected to the top and bottom of the L-shaped rod 303. The hook 304 and the placement platform 301 provide two placement methods for the workpiece.
[0021] In this utility model, protruding plates 202 are fixedly connected to both sides of the top of the L-shaped baffle 2. Guide rods 201 are fixedly connected to one end of each protruding plate 202 near the drying chamber 1. Fixing blocks 103 are slidably sleeved on the circumferential surface of each guide rod 201. Screw nuts that are compatible with the guide rods 201 are provided on each of the two fixing blocks 103. The two fixing blocks 103 are fixedly connected to the outside of the drying chamber 1. The setting of fixing blocks 103 and guide rods 201, etc., improves the stability of the movement of the L-shaped baffle 2.
[0022] In this utility model, a guide hood 5 is fixedly connected to the top of the drying chamber 1, and the top of the drying chamber 1 is connected to the guide hood 5. The bottom end of the guide hood 5 is fixedly connected to one side of the outer wall of the drying chamber 1, and an air outlet adapted to the guide hood 5 is opened on one side of the drying chamber 1. A first motor 501 is fixedly connected to the outer wall of the guide hood 5 near the bottom, and the output end of the first motor 501 passes through the guide hood 5 and is fixedly connected to a fan blade through a coupling. The speed of the fan blade will not be too high, and it only provides power for the circulation of hot air. An adjustment mechanism 7 is provided on one side of the inner wall of the drying chamber 1 near the guide hood 5.
[0023] In this invention, the adjusting mechanism 7 includes side plates 701 fixedly connected to the inner wall of the drying chamber 1 on both sides of the air outlet of the air guide hood 5. Multiple guide plates 705 are rotatably connected at equal distances between the two side plates 701. Each guide plate 705 has a strip-shaped hole 706 in its center. Vertical holes 702 are provided on both side plates 701. A sliding block 703 is slidably connected to each vertical hole 702. Multiple drive rods 704 are fixedly connected between two sliding blocks 703, and each drive rod 704 is slidably connected to... In the adjacent strip-shaped holes 706, the same sliding rod is fixedly connected between the top and bottom of each vertical hole 702, and each sliding rod slides through the adjacent sliding block 703. Each sliding block 703 has a round hole that matches the sliding rod. The same U-shaped rod 707 is fixedly connected to the outer wall of the two sliding blocks 703. Through the cooperation of the adjusting mechanism 7 and the eccentric wheel 602, the airflow direction of the hot air returning to the bottom of the drying oven 1 through the air guide shroud 5 is constantly changing, thereby improving the uniform heating of the workpiece.
[0024] In this utility model, a second motor 6 is fixedly connected to the outside of the drying oven 1 near the bottom, and the output end of the second motor 6 passes through the drying oven 1 and is fixedly connected to a rotating shaft through a coupling. A bevel gear 601 is fixedly connected to the other end of the rotating shaft, and the bevel gear 601 is adapted to the bevel gear 302. An eccentric wheel 602 is fixedly sleeved in the middle of the rotating shaft, and the eccentric wheel 602 is adapted to the U-shaped rod 707.
[0025] In this invention, heating plates 4 are fixedly connected to both sides of the inner wall of the drying oven 1, and a temperature sensor 105 is fixedly connected to the top of the inner side of the drying oven 1. A control panel 104 is fixedly connected to one side of the outer wall of the drying oven 1, and the control panel 104 is electrically connected to the temperature sensor 105 and the heating plates 4 respectively. The temperature sensor 105 can control the power of the two heating plates 4.
[0026] Working principle: When the device is powered on, the L-shaped baffle 2 is located inside the drying chamber 1. The bevel gear 601 meshes with the bevel gear 302. Activating the electric telescopic rod 102 extends the L-shaped baffle 2. The workpiece to be dried can then be placed on top of the placement platform 301 or suspended by the hook 304. Activating the electric telescopic rod 102 retracts the baffle 2, allowing it to carry the workpiece into the drying chamber 1. The heating plate 4 is activated, and the temperature inside the drying chamber 1 is controlled by the temperature sensor 105 and the control panel 104. When the L-shaped baffle 2 enters the drying chamber 1, the bevel gear 601 meshes with the bevel gear 302. Gear 601 can re-engage with bevel gear 302 to start the second motor 6, causing the rotating rod 3 to rotate along with the placement platform 301 and L-shaped rod 303, so that the workpiece can be brought close to the heating plate 4 from all sides for uniform heating. At the same time, the fan blades inside the air guide shroud 5 allow the hot air at the top of the drying chamber 1 to return to the bottom of the drying chamber 1 through the air guide shroud 5, realizing heat circulation. Meanwhile, the eccentric wheel 602 drives the U-shaped rod 707 to reciprocate up and down, causing multiple guide plates 705 to oscillate back and forth, so that the hot air blown out from the bottom of the air guide shroud 5 keeps changing the direction of the blowing, further improving the uniformity of the workpiece heating.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A drying apparatus for electrostatic spraying, comprising a drying chamber (1), characterized in that, The drying chamber (1) has a feed inlet on one side. Support legs (101) are fixedly connected to both sides of the bottom of the drying chamber (1). An electric telescopic rod (102) is fixedly connected to the bottom of the drying chamber (1) away from the feed inlet via a connecting block. An L-shaped baffle (2) is fixedly connected to the other end of the electric telescopic rod (102), and the L-shaped baffle (2) is adapted to the feed inlet of the drying chamber (1). A rotating rod (3) is rotatably connected to the top center of the L-shaped baffle (2), and the rotating rod (3)... The top is fixedly connected to a placement platform (301), and a bevel gear (302) is fixedly sleeved on the circumferential surface of the rotating rod (3). An L-shaped rod (303) is fixedly connected to the top edge of the placement platform (301). A fixing plate (203) is fixedly connected to the top of the L-shaped baffle (2) on the side close to the drying box (1). One end of the top of the L-shaped rod (303) is rotatably connected to the bottom of the fixing plate (203), and a hook (304) is fixedly connected to the bottom of the top of the L-shaped rod (303).
2. The drying apparatus for electrostatic spraying according to claim 1, characterized in that, The L-shaped baffle (2) has protruding plates (202) fixedly connected to both sides of its top. The two protruding plates (202) are fixedly connected to guide rods (201) at the ends of the two protruding plates (202) near the drying chamber (1). The two guide rods (201) have fixed blocks (103) slidably sleeved on their circumferential surfaces. The two fixed blocks (103) are provided with screw nuts that are compatible with the guide rods (201). The two fixed blocks (103) are fixedly connected to the outside of the drying chamber (1).
3. The drying apparatus for electrostatic spraying according to claim 1, characterized in that, The top of the drying chamber (1) is fixedly connected to the air guide hood (5), the top of the drying chamber (1) is connected to the air guide hood (5), the bottom end of the air guide hood (5) is fixedly connected to one side of the outer wall of the drying chamber (1), and an air outlet adapted to the air guide hood (5) is opened on one side of the drying chamber (1). A first motor (501) is fixedly connected to the outer wall of the air guide hood (5) near the bottom, and the output end of the first motor (501) passes through the air guide hood (5) and is fixedly connected to a fan blade through a coupling. An adjustment mechanism (7) is provided on one side of the inner wall of the drying chamber (1) near the air guide hood (5).
4. The drying apparatus for electrostatic spraying according to claim 3, characterized in that, The adjusting mechanism (7) includes side plates (701) fixedly connected to the inner wall of the drying chamber (1) on both sides of the air outlet of the air guide hood (5). Multiple guide plates (705) are rotatably connected at equal distances between the two side plates (701). Each guide plate (705) has a strip-shaped hole (706) in its center. Vertical holes (702) are provided on both side plates (701). A sliding block (703) is slidably connected to each vertical hole (702). Two sliding blocks (703) are slidably connected to each vertical hole (702). 03) Multiple drive rods (704) are fixedly connected between each other, and each drive rod (704) is slidably connected in adjacent strip holes (706). The same sliding rod is fixedly connected between the top and bottom of each vertical hole (702), and each sliding rod slides through adjacent sliding blocks (703). Each sliding block (703) has a round hole adapted to the sliding rod. The same U-shaped rod (707) is fixedly connected to the outer wall of two sliding blocks (703).
5. The drying apparatus for electrostatic spraying according to claim 1, characterized in that, A second motor (6) is fixedly connected to the outside of the drying box (1) near the bottom. The output end of the second motor (6) passes through the drying box (1) and is fixedly connected to a rotating shaft via a coupling. A bevel gear (601) is fixedly connected to the other end of the rotating shaft. The bevel gear (601) is adapted to the bevel gear (302). An eccentric wheel (602) is fixedly sleeved in the middle of the rotating shaft. The eccentric wheel (602) is adapted to the U-shaped rod (707).
6. The drying apparatus for electrostatic spraying according to claim 1, characterized in that, The drying oven (1) has heating plates (4) fixedly connected to both sides of its inner wall, and a temperature sensor (105) fixedly connected to the top of its inner side. The drying oven (1) has a control panel (104) fixedly connected to one side of its outer wall, and the control panel (104) is electrically connected to the temperature sensor (105) and the heating plates (4) respectively.