Three-proofing paint heating and spraying device

Abstract

The utility model discloses a conformal coating heating and spraying device, which belongs to the field of spraying devices and comprises a preheating mechanism consisting of a heat insulation box and two heating coils, a stirring frame is rotatably arranged on the heat insulation box, the two heating coils are respectively mounted on two sides of the stirring frame, a gear is arranged at the top end of the stirring frame, and the gear is meshed with the heating coils. Electric push rods are arranged on the two sides of the upper portion of the heat preservation box, and the output ends of the two electric push rods are connected with racks engaged with the gears. The preheating mechanism is arranged, two heating coil pipes can heat paint liquid in the heat preservation box, by means of the meshing relation between a gear and two racks, when the output ends of two electric push rods synchronously do reciprocating linear motion, a stirring frame can be driven to do reciprocating rotation with the rotation angle of 180 degrees, and the paint liquid in the heat preservation box can be heated. The heating coils on the two sides of the stirring frame can stir the paint liquid in the heat preservation box, and it is guaranteed that the paint liquid in the heat preservation box is heated evenly.

Description

Technical Field

[0001] The utility model relates to the technical field related to spraying devices, in particular to a triple-conformal paint heating spraying device. Background Art

[0002] Conformal coating is a protective film applied to the surface of circuit boards. It can prevent corrosion, mildew, softening and deformation of circuit boards in chemical, vibration, high dust, salt spray, humidity and high temperature environments, thereby improving the reliability and safety of circuit boards. Therefore, during the production process of circuit boards, conformal coating needs to be sprayed on the circuit boards to form a protective paint layer on their surface.

[0003] The existing spraying method is usually to spray manually with a handheld spray gun. This spraying method is inefficient and will also cause the unused three-proof paint to gradually cool and solidify when spraying in large quantities, affecting the subsequent spraying effect. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides a triple-proof paint heating spraying device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a three-proof coating heating spraying device, comprising a preheating mechanism composed of an insulation box and two heating coils, a stirring frame is rotatably arranged on the insulation box, and the two heating coils are respectively installed on both sides of the stirring frame, a gear is arranged on the top of the stirring frame, electric push rods are arranged on both sides above the insulation box, and the output ends of the two electric push rods are connected to racks meshing with the gears;

[0007] It also includes a spraying mechanism consisting of a spraying frame and a liquid diverter. The spraying frame is located on one side of the insulation box. A horizontally slidable mounting frame is provided on the spraying frame, and rotating fans are provided at the four corners of the mounting frame. The liquid diverter is installed on the lower surface of the mounting frame.

[0008] As a preferred technical solution of the utility model, a support frame is provided at the central part of the top of the insulation box, the stirring frame is rotatably installed at the center of the support frame, and the two electric push rods are respectively located at the two ends of the support frame, and the two racks are slidably installed on the stirring frame.

[0009] As a preferred technical solution of the utility model, a liquid pump is provided on one side of the incubator, the liquid inlet and the liquid outlet of the liquid pump are both connected with an infusion tube, the infusion tube on the liquid outlet of the liquid pump is connected to the liquid diverter, and one end of the infusion tube on the liquid inlet of the liquid pump is located in the incubator.

[0010] As a preferred technical solution of the utility model, a supporting frame is provided on one side of the insulation box, the spraying frame is placed on the supporting frame, and two electric slide rails are installed in the middle part of the supporting frame, and the electric slide rails are both located above the spraying frame, and the mounting frame is installed between the slide seats of the two electric slide rails.

[0011] As a preferred technical solution of the utility model, the mounting frame, fan and liquid diverter are all located above the spray frame, the four fans are distributed in a rectangular shape on the mounting frame, and the liquid diverter is provided with a plurality of equidistantly arranged atomizing nozzles.

[0012] As a preferred technical solution of the utility model, a liquid collecting plate for collecting excess paint liquid is arranged below the spray rack, and a shielding plate for blocking the misty paint liquid from scattering is arranged at the edge of the upper surface of the spray rack.

[0013] In the above solution, it should be noted that the heating coil, electric push rod, fan, liquid pump and electric slide rail are all externally connected to the power supply and electrically connected to the controller.

[0014] The beneficial effects of the utility model are:

[0015] 1. This type of conformal coating heating spraying device, by setting a pre-heating mechanism, two heating coils will heat the paint liquid in the insulation box, and by utilizing the meshing relationship between the gear and the two racks, when the output ends of the two electric push rods synchronously make reciprocating linear motion, it will drive the stirring frame to make a reciprocating rotation angle of 180 degrees, so that the heating coils on both sides of the stirring frame can stir the paint liquid in the insulation box, ensuring that the paint liquid in the insulation box is heated evenly.

[0016] 2. This type of conformal coating heating spraying device, by setting up a spraying mechanism, the liquid pump will transport the paint liquid in the insulation box to the liquid diverter and spray it out from the atomizing nozzle on the liquid diverter, and at this time the electric slide rail will drive the mounting frame to make a horizontal linear motion, so as to spray the circuit boards placed on the spraying frame to ensure that the paint surface on each circuit board is uniform. After the spraying is completed, the fan on the mounting frame will work, and the airflow it generates can cover all circuit boards, thereby helping to dry the paint surface of the circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the main structure of a triple-conformal paint heating spraying device of the utility model;

[0019] Figure 2 It is a schematic cross-sectional view of the heat preservation box of a three-proof paint heating spraying device of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the stirring frame, heating coil and gear of a three-proof paint heating spraying device of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of a spray frame of a triple-conformal paint heating spray device of the utility model;

[0022] Figure 5 The utility model is a schematic diagram of the connection structure of a mounting frame, a fan and a liquid diverter of a triple-conformal paint heating spraying device.

[0023] In the figure: 1. Insulation box; 2. Stirring frame; 3. Heating coil; 4. Gear; 5. Electric push rod; 6. Rack; 7. Spraying frame; 8. Mounting frame; 9. Fan; 10. Liquid diverter; 11. Support frame; 12. Infusion tube; 13. Liquid pump; 14. Carrying frame; 15. Electric slide rail; 16. Liquid collecting plate; 17. Shielding plate. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0025] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the utility model is a three-proof coating heating spraying device, comprising a preheating mechanism composed of an insulation box 1 and two heating coils 3, a stirring frame 2 is rotatably arranged on the insulation box 1, and the two heating coils 3 are respectively installed on both sides of the stirring frame 2, a gear 4 is arranged on the top of the stirring frame 2, electric push rods 5 are arranged on both sides above the insulation box 1, and the output ends of the two electric push rods 5 are connected to racks 6 meshing with the gear 4;

[0026] It also includes a spraying mechanism consisting of a spraying frame 7 and a liquid diverter 10. The spraying frame 7 is located on one side of the insulation box 1. A horizontally slidable mounting frame 8 is provided on the spraying frame 7, and rotating fans 9 are provided at the four corners of the mounting frame 8. The liquid diverter 10 is installed on the lower surface of the mounting frame 8.

[0027] Among them, a support frame 11 is provided at the central part of the top of the insulation box 1, the stirring frame 2 is rotatably installed at the center of the support frame 11, and the two electric push rods 5 are respectively located at the two ends of the support frame 11, and the two racks 6 are slidably installed on the stirring frame 2. By setting the support frame 11, an installation position can be provided for the stirring frame 2, the electric push rod 5 and the rack 6, ensuring the stability of the stirring frame 2 when rotating and the rack 6 when sliding, and improving the meshing tightness of the gear 4 and the two racks 6.

[0028] Among them, a liquid pump 13 is arranged on one side of the insulation box 1, and the liquid inlet and liquid outlet of the liquid pump 13 are connected to the infusion tube 12. The infusion tube 12 on the liquid outlet of the liquid pump 13 is connected to the liquid diverter 10. One end of the infusion tube 12 on the liquid inlet of the liquid pump 13 is located in the insulation box 1. By setting the infusion tube 12 and the liquid pump 13, and utilizing the conveying capacity of the liquid pump 13 for the paint liquid, the paint liquid in the insulation box 1 can be conveyed to the liquid diverter 10.

[0029] Among them, a carrying frame 14 is set on one side of the insulation box 1, and the spraying frame 7 is placed on the carrying frame 14, and two electric slide rails 15 are installed in the middle part of the carrying frame 14, and the electric slide rails 15 are both located above the spraying frame 7, and the mounting frame 8 is installed between the slide seats of the two electric slide rails 15. By setting the carrying frame 14, it can be used to carry the spraying frame 7. By setting the electric slide rails 15, it can drive the mounting frame 8 to make a horizontal linear motion above the spraying frame 7, thereby improving the uniformity of the paint liquid attached to the circuit board during the spraying process.

[0030] Among them, the mounting frame 8, the fan 9 and the liquid diverter 10 are all located above the spray rack 7. The four fans 9 are distributed in a rectangular shape on the mounting frame 8, and the liquid diverter 10 is provided with a plurality of equidistantly arranged atomizing nozzles. By setting the fans 9, the airflows fanned out by the four fans 9 can cover the spray rack 7. By setting the liquid diverter 10, the paint liquid input into the liquid diverter 10 can be evenly sprayed on the circuit board placed on the spray rack 7.

[0031] Among them, a liquid collecting plate 16 for collecting excess paint liquid is arranged under the spray rack 7, and a shielding plate 17 for blocking the misty paint liquid from drifting is arranged at the edge of the upper surface of the spray rack 7. By setting the liquid collecting plate 16, the paint liquid dripping on the spray rack 7 and the circuit board can be collected, and by setting the shielding plate 17, the atomized paint liquid during the spraying process can be prevented from diffusing outward.

[0032] During operation, the conformal paint to be used is added into the insulation box 1, and the circuit board to be sprayed with paint is placed on the spray rack 7. Then, the two heating coils 3 and the two electric push rods 5 are started. After the two heating coils 3 are powered on, the paint liquid in the insulation box 1 is heated. The output ends of the two electric push rods 5 are synchronously reciprocating linear motion under the control of the controller. Due to the meshing relationship between the gear 4 and the two racks 6, the two electric push rods 5 can drive the stirring rack 2 to perform a reciprocating rotation motion with a rotation angle of 180 degrees. At this time, the heating coils 3 on both sides of the stirring rack 2 can stir the paint liquid in the insulation box 1 to ensure that the paint liquid in the insulation box 1 is heated evenly.

[0033] Then turn on the liquid extraction pump 13, which will transport the paint liquid in the insulation box 1 to the liquid diverter 10 and spray it out from the atomizing nozzle on the liquid diverter 10. At the same time, the electric slide rail 15 above the spray rack 7 will drive the mounting frame 8 to make a horizontal linear motion and reciprocate multiple times, so as to spray the circuit boards placed on the spray rack 7 to ensure that each circuit board is sprayed with a uniform thickness of paint. After the spraying is completed, the liquid extraction pump 13 will stop transporting the paint liquid. At this time, the fan 9 on the mounting frame 8 will work. The airflow generated by the rotation of the fan 9 can cover all circuit boards, thereby helping the paint surface of the circuit board to dry quickly, making it convenient for the staff to remove it without damaging the paint surface.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A conformal coating heating spraying device, characterized in that: The invention comprises a preheating mechanism composed of a heat preservation box (1) and two heating coils (3), wherein a stirring frame (2) is rotatably arranged on the heat preservation box (1), and the two heating coils (3) are respectively installed on both sides of the stirring frame (2), a gear (4) is arranged at the top of the stirring frame (2), electric push rods (5) are arranged on both sides above the heat preservation box (1), and the output ends of the two electric push rods (5) are connected to racks (6) meshing with the gears (4); The invention also comprises a spraying mechanism consisting of a spraying frame (7) and a liquid diverter (10), wherein the spraying frame (7) is located on one side of the heat preservation box (1), a horizontally slidable mounting frame (8) is arranged on the spraying frame (7), and rotating fans (9) are arranged at the four corners of the mounting frame (8), and the liquid diverter (10) is installed on the lower surface of the mounting frame (8).

2. A conformal coating heating spraying device according to claim 1, characterized in that: A support frame (11) is provided at the center of the top of the thermal insulation box (1), the stirring frame (2) is rotatably mounted at the center of the support frame (11), and the two electric push rods (5) are respectively located at the two ends of the support frame (11), and the two racks (6) are both slidably mounted on the stirring frame (2).

3. A conformal coating heating spraying device according to claim 1, characterized in that: A liquid pump (13) is provided on one side of the thermal insulation box (1); the liquid inlet and the liquid outlet of the liquid pump (13) are both connected to a liquid infusion tube (12); the liquid infusion tube (12) on the liquid outlet of the liquid pump (13) is connected to a liquid diverter (10); and one end of the liquid infusion tube (12) on the liquid inlet of the liquid pump (13) is located inside the thermal insulation box (1).

4. A conformal coating heating spraying device according to claim 1, characterized in that: A carrier frame (14) is provided on one side of the thermal insulation box (1), the spraying frame (7) is placed on the carrier frame (14), and two electric slide rails (15) are installed in the middle of the carrier frame (14), and the electric slide rails (15) are both located above the spraying frame (7), and the mounting frame (8) is installed between the slide seats of the two electric slide rails (15).

5. The conformal coating heating spraying device according to claim 1, characterized in that: The mounting frame (8), the fan (9) and the liquid diverter (10) are all located above the spraying frame (7); the four fans (9) are distributed in a rectangular shape on the mounting frame (8); and the liquid diverter (10) is provided with a plurality of atomizing nozzles arranged at equal distances.

6. The conformal coating heating spraying device according to claim 1, characterized in that: A liquid collecting plate (16) for collecting excess paint liquid is arranged below the spraying rack (7), and a shielding plate (17) for blocking the misty paint liquid from scattering is arranged at the edge of the upper surface of the spraying rack (7).

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