A drying device for spraying coating on the surface of metal products

Abstract

This utility model discloses a drying device for surface coating of metal products, relating to the field of metal product technology. The drying device includes a drying chamber and a multi-point clamping mechanism. The multi-point clamping mechanism includes a clamping mechanism base plate, sliding plates, clamping claws, a worm gear, an irregular arc-shaped plate, a motor, a worm, and a mounting plate. The clamping mechanism base plate is located inside the drying chamber. Multiple sliding plates are slidably connected to the surface of the clamping mechanism base plate. The number of clamping claws is the same as the number of sliding plates and they are all fixedly connected to the top of the corresponding sliding plates. The number of irregular arc-shaped plates is the same as the number of sliding plates and they are all fixedly connected to the worm gear. The worm gear and worm drive, in conjunction with the irregular arc-shaped plates, achieves multi-point synchronous clamping, solving the structural limitations of existing technologies in metal product clamping operations, where double-sided clamping mechanisms can only achieve two-point fixation, affecting clamping stability and the applicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of metal products technology, and in particular to a drying device for spraying coating on the surface of metal products. Background Technology

[0002] A drying device for metal product surface spraying is a piece of equipment that integrates spraying and drying functions. It typically includes a spraying system, a heating system, a conveying mechanism, and a control system. After uniformly spraying the metal surface through a nozzle, the coating is quickly dried using hot air, infrared rays, or ultraviolet rays, improving production efficiency and coating quality. Common types include chamber dryers, rotary drum dryers, and spray dryers. They are suitable for metal products of different shapes and sizes, reducing manual operation time. Some advanced devices adjust the workpiece position through a rotating shaft or slide plate to optimize the continuity of spraying and drying.

[0003] The announcement number CN218796705U discloses a metal product spray painting device, which belongs to the field of spray painting technology. This metal product painting device includes a positioning component and a drying component. The metal product is placed on the surface of a rotating base and clamped and fixed by a clamping component, allowing for the positioning of irregular metal products. The rotating base rotates the metal product, and the spray gun is activated for painting. A reciprocating component drives a drying component to move back and forth, drying the painted metal product and accelerating the drying process. The reciprocating component can also dry different parts of the metal product, ensuring uniform drying and facilitating rapid drying of freshly painted metal products. The device also includes a positioning structure to prevent wobbling of irregular metal products during rotation, improving practicality. However, this device has structural limitations in metal product clamping operations. Its existing double-sided clamping mechanism only provides two-point fixation and cannot provide multi-directional constraint forces, leading to workpiece displacement or vibration under dynamic conditions, affecting clamping stability and the applicability of the process. Therefore, a drying device for metal product surface painting is needed. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a drying device for spraying metal products. This device can solve the problem that the existing technology has structural limitations in the clamping operation of metal products, and that the double-sided clamping mechanism can only achieve two-point fixation, which affects the clamping stability and the applicability of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for spraying metal product surfaces, comprising a drying chamber and a multi-point clamping mechanism. The multi-point clamping mechanism includes a clamping mechanism base plate, a sliding plate, clamping claws, a worm gear, an irregular arc-shaped plate, a motor, a worm, and a mounting plate. The clamping mechanism base plate is disposed inside the drying chamber. Multiple sliding plates are slidably connected to the surface of the clamping mechanism base plate. The number of clamping claws is the same as the number of sliding plates and they are all fixedly connected to the top of the corresponding sliding plates. The worm gear is rotatably connected to the bottom of the clamping mechanism base plate. The number of irregular arc-shaped plates is the same as the number of sliding plates and they are all fixedly connected to the worm gear. The mounting plate is fixedly connected to the bottom of the clamping mechanism base plate. The worm gear is rotatably connected to the surface of the mounting plate. The motor is fixedly connected to the surface of the mounting plate, and the output end of the motor is fixedly connected to the worm gear. The worm gear meshes with the worm gear.

[0006] Preferably, the surface of the base plate of the clamping mechanism is provided with multiple sliding grooves, the number of which is the same as the number of sliding plates, and each sliding plate is slidably connected inside the corresponding sliding groove.

[0007] Preferably, each of the grooves has a slider slidably connected inside, each slider has a return spring fixedly connected to its surface, and the end of each return spring away from the slider is fixedly connected to the base plate of the clamping mechanism.

[0008] Preferably, the bottom of the clamping mechanism base plate is fixedly connected to a housing, the bottom of the housing is fixedly connected to an electric rotary table, and the bottom of the electric rotary table is fixedly connected to the drying chamber.

[0009] Preferably, an electric push rod is fixedly connected inside the drying chamber, a blower box is fixedly connected to the top of the electric push rod, and multiple heating wires are fixedly connected inside the blower box.

[0010] Preferably, the bottom of the drying chamber is fixedly connected to a chamber base, the surface of the drying chamber is fixedly connected to an observation window, and the top of the drying chamber is bolted to a top plate.

[0011] Preferably, the surface of the drying chamber is provided with a door, and a handle is fixedly connected to the surface of the door.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This drying device for metal product surface spraying uses a worm gear drive and an irregular arc plate to achieve multi-point synchronous clamping, ensuring reliable workpiece fixation. An electric rotary table drives the workpiece to rotate at a uniform speed, combined with an adjustable height air box hot air circulation system, making the paint film heat more evenly. The modular clamping mechanism automatically resets via a return spring, reducing the need for manual intervention. The observation window and sealed box design take into account both operation monitoring and safety protection. The overall structure realizes the automation and high efficiency of the drying process after spraying. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the main body of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the base plate of the clamping mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the worm gear of this utility model.

[0019] Reference numerals in the attached drawings: 1. Drying chamber; 2. Chamber base; 3. Chamber door; 4. Handle; 5. Top plate; 6. Observation window; 7. Air box; 8. Heating wire; 9. Electric push rod; 10. Electric rotary table; 11. Outer shell; 12. Clamping mechanism base plate; 13. Sliding plate; 14. Clamping claw; 15. Slide groove; 16. Worm gear; 17. Irregular arc plate; 18. Motor; 19. Worm; 20. Mounting plate; 21. Slider; 22. Return spring. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a drying device for spraying coating on the surface of metal products, including a drying chamber 1 and a multi-point clamping mechanism. The multi-point clamping mechanism includes a clamping mechanism base plate 12, sliding plates 13, clamping claws 14, a worm gear 16, an irregular arc-shaped plate 17, a motor 18, a worm 19, and a mounting plate 20. The clamping mechanism base plate 12 is disposed inside the drying chamber 1. Multiple sliding plates 13 are slidably connected to the surface of the clamping mechanism base plate 12. The number of clamping claws 14 is related to the sliding plates 13. Plate 13 is identical and fixedly connected to the top of the corresponding sliding plate 13. Worm gear 16 is rotatably connected to the bottom of the clamping mechanism base plate 12. The number of irregular arc-shaped plates 17 is the same as that of the sliding plates 13 and they are all fixedly connected to the worm gear 16. Mounting plate 20 is fixedly connected to the bottom of the clamping mechanism base plate 12. Worm 19 is rotatably connected to the surface of mounting plate 20. Motor 18 is fixedly connected to the surface of mounting plate 20. The output end of motor 18 is fixedly connected to worm 19. Worm 19 is meshed with worm gear 16.

[0025] Furthermore, the surface of the clamping mechanism base plate 12 is provided with multiple sliding grooves 15, the number of which is the same as that of the sliding plates 13. Each sliding plate 13 is slidably connected to the interior of the corresponding sliding groove 15. A slider 21 is slidably connected inside the interior of each sliding groove 15. A return spring 22 is fixedly connected to the surface of each slider 21. The end of each return spring 22 away from the slider 21 is fixedly connected to the clamping mechanism base plate 12. A housing 11 is fixedly connected to the bottom of the clamping mechanism base plate 12. An electric rotating table 10 is fixedly connected to the bottom of the housing 11. The bottom of the electric rotating table 10 is fixedly connected to the drying chamber 1. An electric push rod 9 is fixedly connected to the interior of the drying chamber 1. A bellows 7 is fixedly connected to the top of the electric push rod 9. Multiple heating wires 8 are fixedly connected to the interior of the bellows 7. A chamber base 2 is fixedly connected to the bottom of the drying chamber 1. An observation window 6 is fixedly connected to the surface of the drying chamber 1. A top plate 5 is bolted to the top of the drying chamber 1. A chamber door 3 is provided on the surface of the drying chamber 1. A handle 4 is fixedly connected to the surface of the chamber door 3.

[0026] Furthermore, the metal product to be dried is placed above 12. The motor 18 drives the worm gear 19 to rotate, which in turn drives the irregular arc plate 17 to rotate through the worm gear transmission. The arc plate pushes the slider 21 to slide along the slide groove 15, so that the sliding plate 13 drives the clamping claw 14 to move radially in sync to achieve multi-point clamping of the workpiece. The electric rotary table 10 drives the entire clamping mechanism to rotate through the outer shell 11, so that the workpiece is heated evenly during the drying process. The electric push rod 9 adjusts the height position of the air box 7. The hot air generated by the heating wire 8 is blown evenly onto the surface of the workpiece through the air box 7 to accelerate the curing of the paint film. The return spring 22 automatically resets the sliding plate 13 after the clamping action is completed. The observation window 6 facilitates monitoring of the drying process. The door 3 and the handle 4 form a sealed operating space. This device achieves efficient and uniform drying of metal products after spraying through the synergistic effect of mechanical transmission and hot air circulation.

[0027] Furthermore, the worm gear transmission, combined with the irregular arc plate, enables multi-point synchronous clamping, ensuring reliable workpiece fixation. The electric rotary table drives the workpiece to rotate at a uniform speed, and the adjustable height air box hot air circulation system makes the paint film heat more evenly. The modular clamping mechanism automatically resets via a return spring, reducing the need for manual intervention. The observation window and sealed box design take into account both operation monitoring and safety protection. The overall structure realizes the automation and efficiency of the drying process after spraying.

[0028] Structural Description: Drying Chamber 1: As the main structure of the device, it provides a closed and constant temperature working environment for the drying process of metal products after surface coating, ensuring uniform heat distribution and reducing external interference;

[0029] Box base 2: Supports the stable operation of the entire drying device. The high-strength material design ensures that the equipment will not deform or shift under long-term high-temperature working environment;

[0030] Box door 3: It adopts a sealed design and a handle to achieve quick opening and closing, which makes it easy for operators to load and unload workpieces while maintaining the temperature stability inside the box;

[0031] Handle 4: Ergonomic design enhances ease of operation, and its linkage with the cabinet door ensures airtightness that meets industrial safety standards;

[0032] Top plate 5: It is removable and maintainable via bolt connection, and has a built-in heat insulation layer to reduce heat loss and protect the upper electrical components;

[0033] Observation window 6: High-temperature resistant transparent material combined with anti-fog coating, allowing real-time monitoring of the workpiece's drying status without affecting the internal temperature field uniformity;

[0034] Wind box 7: Integrated multi-directional air outlet design, which evenly diffuses the heat generated by the heating wire to the surface of the workpiece, avoiding local overheating or uneven drying;

[0035] Heating wire 8: Made of corrosion-resistant alloy material, it converts electrical energy into a stable heat source, supporting rapid heating and precise temperature control to meet different paint film curing requirements;

[0036] Electric push rod 9: Linear drive adjusts the height of the air box to adapt to the drying requirements of workpieces of different sizes and improves the versatility of the device;

[0037] Electric rotary table 10: The workpiece can be rotated at multiple angles through the linkage clamping mechanism of the outer shell, ensuring that the coating surface is heated and cured in all directions;

[0038] Outer shell 11: protects the internal transmission components from hot air corrosion, and also serves as a rigid connection carrier between the rotary table and the clamping mechanism;

[0039] Clamping mechanism base plate 12: provides the mounting reference surface for the multi-point clamping system, and precision machining ensures the consistency of the movement trajectory of each sliding component;

[0040] Sliding plate 13: Moves directionally along the slide groove to drive the clamping claw, and achieves rapid positioning and release of the workpiece through mechanical linkage;

[0041] Clamping claw 14: The contact surface is made of non-slip and wear-resistant material to avoid scratching the workpiece surface coating during clamping;

[0042] Slide 15: The high-precision guide rail structure limits the travel of the sliding plate, ensuring uniform clamping force distribution and repeatable positioning;

[0043] Worm Gear 16: Converts motor torque into rotational motion, and drives an irregular arc-shaped plate to achieve complex trajectory movements through meshing transmission;

[0044] Irregular arc plate 17: The unique contour design converts rotational motion into linear displacement, pushing the slider to complete the radial extension and retraction of the clamping mechanism;

[0045] Motor 18: High-torque servo drive ensures smooth operation of the worm gear system and supports speed adjustment to adapt to different workpiece clamping forces;

[0046] Worm 19: The precision thread and worm wheel work together to achieve motion conversion, and it has a self-locking property to prevent accidental loosening during clamping;

[0047] Mounting plate 20: Provides a rigid support platform for the motor and worm gear, and reduces vibration and noise of the transmission system through shock absorption design;

[0048] Slider 21: It transmits thrust linearly within the groove, and the surface hardening treatment improves wear resistance and long-term accuracy.

[0049] Return spring 22: The automatic return mechanism enables the clamping mechanism to quickly return to its original position, reducing manual intervention and improving continuous operation efficiency.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A drying apparatus for spraying coating on the surface of metal products, characterized in that, include: Drying chamber (1); The multi-point clamping mechanism includes a clamping mechanism base plate (12), a sliding plate (13), clamping claws (14), a worm gear (16), an irregular arc-shaped plate (17), a motor (18), a worm (19), and a mounting plate (20). The clamping mechanism base plate (12) is located inside the drying chamber (1). There are multiple sliding plates (13), all of which are slidably connected to the surface of the clamping mechanism base plate (12). The number of clamping claws (14) is the same as that of the sliding plates (13), and all of them are fixedly connected to the corresponding sliding plates (13). At the top, the worm gear (16) is rotatably connected to the bottom of the clamping mechanism base plate (12). The number of irregular arc plates (17) is the same as that of the sliding plate (13) and they are all fixedly connected to the worm gear (16). The mounting plate (20) is fixedly connected to the bottom of the clamping mechanism base plate (12). The worm (19) is rotatably connected to the surface of the mounting plate (20). The motor (18) is fixedly connected to the surface of the mounting plate (20). The output end of the motor (18) is fixedly connected to the worm (19). The worm (19) meshes with the worm gear (16).

2. The drying device for spraying metal product surface according to claim 1, characterized in that: The surface of the base plate (12) of the clamping mechanism is provided with a plurality of sliding grooves (15), the number of which is the same as that of the sliding plate (13), and each sliding plate (13) is slidably connected to the interior of the corresponding sliding groove (15).

3. The drying device for spraying metal product surfaces according to claim 2, characterized in that: Each of the slide grooves (15) is slidably connected to a slider (21), and a return spring (22) is fixedly connected to the surface of each slider (21). The end of each return spring (22) away from the slider (21) is fixedly connected to the base plate (12) of the clamping mechanism.

4. The drying device for spraying metal product surface according to claim 1, characterized in that: The bottom of the clamping mechanism base plate (12) is fixedly connected to the outer shell (11), and the bottom of the outer shell (11) is fixedly connected to the electric rotary table (10). The bottom of the electric rotary table (10) is fixedly connected to the drying chamber (1).

5. The drying device for spraying metal product surface according to claim 1, characterized in that: An electric push rod (9) is fixedly connected inside the drying chamber (1), and a blower box (7) is fixedly connected to the top of the electric push rod (9). Multiple heating wires (8) are fixedly connected inside the blower box (7).

6. The drying device for spraying metal product surface according to claim 1, characterized in that: The bottom of the drying chamber (1) is fixedly connected to the chamber base (2), the surface of the drying chamber (1) is fixedly connected to the observation window (6), and the top of the drying chamber (1) is bolted to the top plate (5).

7. A drying device for spraying metal product surfaces according to claim 1, characterized in that: The surface of the drying chamber (1) is provided with a door (3), and a handle (4) is fixedly connected to the surface of the door (3).

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