Spraying machine for manufacturing security door

Abstract

The invention discloses a spraying machine for anti-theft door manufacturing. The spraying machine comprises a spraying base, the upper portion of the spraying base is fixedly connected with a spraying machine box, the upper portion of the spraying machine box is fixedly connected with a feeding tank, the feeding tank is communicated with a pump machine, the pump machine is communicated with a feeding pipe penetrating through the upper portion of the spraying machine box, and the spraying machine further comprises an electrostatic spraying unit; the electrostatic spraying unit comprises a high-pressure generator fixedly connected to the upper portion of the spraying machine box, the high-pressure generator communicates with an electrostatic spraying gun through a cable, and an atomizing nozzle communicating with the feeding pipe is arranged on the atomizing nozzle. The invention belongs to the technical field of anti-theft door production, and effectively solves the problems that when a spraying machine for anti-theft door manufacturing is used, the spraying uniformity is poor, a coating recycling system is lacked, and materials are wasted.

Description

Technical Field

[0001] The invention belongs to the technical field of anti-theft door production, and in particular relates to a spraying machine for manufacturing anti-theft doors. Background Art

[0002] Security doors are doors that can resist unauthorized opening under certain conditions for a certain period of time, possess certain safety features, and meet appropriate security levels. During the production process, security doors require a coating to prevent the metal from oxidizing and rusting. This process is manually applied using a spray gun, a cumbersome process that requires applying the coating to every inch of the door's surface. Due to the large surface area of ​​security doors, comprehensive coating is time-consuming and prone to omissions, impacting production efficiency and yield.

[0003] In the process of implementing the present invention, there is a problem of spraying uniformity. Traditional spraying machines are easily affected by the movement speed of the spray gun, air pressure fluctuations, etc., resulting in uneven coating thickness, especially in the concave and convex textures of anti-theft doors, which are prone to spray leakage or accumulation.

[0004] The material utilization rate is low, the paint scatters seriously during the spraying process, and the transfer efficiency of air spray is usually only low, which wastes materials and pollutes the environment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that a spraying machine for manufacturing anti-theft doors has the problem of poor spraying uniformity when in use and lacks a paint recovery system, resulting in material waste.

[0006] The technical solution adopted by the present invention is as follows: A spray machine for manufacturing anti-theft doors proposed in the present invention includes a spray base, a spray machine case is fixedly connected to the upper part of the spray base, a supply tank is fixedly connected to the upper part of the spray machine case, the supply tank is connected to a pump, the pump is connected to a supply pipe arranged through the upper part of the spray machine case, and also includes an electrostatic spray unit; the electrostatic spray unit includes a high-voltage generator fixedly connected to the upper part of the spray machine case, the high-voltage generator is connected to an electrostatic spray gun through a cable, and the atomizing nozzle is provided with an atomizing nozzle connected to the supply pipe.

[0007] Furthermore, a motor is passed through the spray base, and a spray turntable located below the atomizing nozzle is fixedly connected to the output shaft of the motor.

[0008] Furthermore, a high-pressure centrifugal fan is passed through the side wall of the spray machine box, a connecting pipe is provided on the high-pressure centrifugal fan, the upper part of the connecting pipe is connected to a filter housing, and the filter housing is connected to a paint settling box.

[0009] Furthermore, a multi-stage replaceable membrane filter cartridge is provided in the filter housing, and the filter cartridge is made of polytetrafluoroethylene material.

[0010] Furthermore, a pulse back-blowing casing is provided on the upper portion of the filter casing, a solenoid valve is provided on the upper portion of the pulse back-blowing casing, and an air pump is provided on the solenoid valve.

[0011] Furthermore, the upper portion of the feed tank is connected to a liquid extraction pump, and the liquid extraction pump is connected to a circulation pipe that passes through the paint settling box.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows:

[0013] 1. By setting up the electrostatic spraying technology: using the electric field to absorb the paint, improve the uniformity of coverage (especially the corners;

[0014] 2. Overspray paint suspended in the air is collected through negative pressure airflow and recycled after separation and filtration: Overspray paint can be recycled, and the comprehensive utilization rate is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the internal structure of an embodiment of the present invention from another perspective;

[0017] Figure 3 This is a schematic diagram of the structural installation on the high-pressure centrifugal fan;

[0018] Figure 4 This is a reference diagram of the electrostatic spraying unit in use in an embodiment of the present invention.

[0019] Among them, 1. Spray base; 11. Spray machine box; 12. Feed tank; 13. Pump; 14. Feed pipe; 2. High-voltage generator; 21. Electrostatic spray gun; 22. Atomizing nozzle; 3. Motor; 31. Spray turntable; 4. High-pressure centrifugal fan; 41. Connecting pipe; 42. Filter housing; 43. Paint sedimentation housing; 5. Pulse back-blowing housing; 51. Solenoid valve; 52. Air pump; 6. Liquid pump; 61. Circulation pipe. DETAILED DESCRIPTION

[0020] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, the present invention proposes a spraying machine for manufacturing anti-theft doors, including a spraying base 1, a spraying machine box 11 is fixedly connected to the upper part of the spraying base 1, a supply tank 12 is fixedly connected to the upper part of the spraying machine box 11, the supply tank 12 is connected to a pump 13, the pump 13 is connected to a supply pipe 14 arranged through the upper part of the spraying machine box 11, and also includes an electrostatic spraying unit; the electrostatic spraying unit includes a high-voltage generator 2 fixedly connected to the upper part of the spraying machine box 11, and the high-voltage generator 2 is connected to the electrostatic spraying unit 12 through a cable. An electric spray gun 21 is provided with an atomizing nozzle 22 connected to a feed pipe 14; the paint in the feed tank 12 is fed from the feed pipe 14 to the atomizing nozzle 22 for spraying through the pump 13, and the high-voltage generator 2 provides a DC high voltage, which is transmitted to the spray gun electrode through a cable. The tip of the electrode needle in the electrostatic spray gun 21 discharges to generate a corona field, which charges the paint. The high-voltage electrostatic field is used to charge the paint particles, which are adsorbed to the workpiece surface by the electric field force. Due to electrostatic adsorption, the paint can reduce dead angles.

[0021] The spray base 1 is penetrated by a motor 3, and a spray turntable 31 located below the atomizing nozzle 22 is fixedly connected to the output shaft of the motor 3. When in use, the workpiece is placed on the spray turntable 31, and the spray turntable 31 is driven to rotate by the motor 3 to avoid uneven problems caused by spraying at a fixed position.

[0022] Furthermore, a high-pressure centrifugal fan 4 is passed through the side wall of the spray machine box 11. The high-pressure centrifugal fan 4 is provided with a connecting pipe 41. The upper part of the connecting pipe 41 is connected to a filter housing 42. The filter housing 42 is connected to a paint settling box 43.

[0023] The high-pressure centrifugal fan 4 maintains the negative pressure in the spraying machine box 11, and the paint settling box 43 plays the role of separating the paint and the air and settling impurities.

[0024] The filter housing 42 is provided with a multi-stage replaceable membrane filter cartridge, which is made of polytetrafluoroethylene.

[0025] A pulse back-blowing casing 5 is provided on the upper part of the filter casing 42, and a solenoid valve 51 is provided on the upper part of the pulse back-blowing casing 5. An air pump 52 is provided on the solenoid valve 51. After the solenoid valve 51 is opened, high-pressure air is sent into the filter casing 42 through the air pump 52 to complete the pulse back-blowing and extend the service life of the filter cartridge.

[0026] The upper part of the supply tank 12 is connected to a liquid extraction pump 6, and the liquid extraction pump 6 is connected to a circulation pipe 61 that is set through the paint sedimentation box 43; during specific use, the user operates the liquid extraction pump 6 to extract the recovered paint through the circulation pipe 61 deep in the paint sedimentation box 43, and add it to the supply tank 12 for recycling.

[0027] The above is the entire process of using a spray machine for manufacturing anti-theft doors.

[0028] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A spraying machine for manufacturing anti-theft doors, comprising a spraying base (1), wherein a spraying machine box (11) is fixedly connected to the upper part of the spraying base (1), characterized in that: The upper part of the sprayer box (11) is fixedly connected to a feed tank (12), the feed tank (12) is connected to a pump (13), the pump (13) is connected to a feed pipe (14) arranged through the upper part of the sprayer box (11), and also includes an electrostatic spraying unit; the electrostatic spraying unit includes a high-voltage generator (2) fixedly connected to the upper part of the sprayer box (11), the high-voltage generator (2) is connected to an electrostatic spray gun (21) through a cable, and the atomizing nozzle (22) is provided with an atomizing nozzle (22) connected to the feed pipe (14).

2. The spray coating machine for manufacturing anti-theft doors according to claim 1, characterized in that: A motor (3) is passed through the spray base (1), and a spray turntable (31) located below the atomizing nozzle (22) is fixedly connected to the output shaft of the motor (3).

3. The spraying machine for manufacturing anti-theft doors according to claim 1, characterized in that: A high-pressure centrifugal fan (4) is passed through the side wall of the spray machine box (11), a connecting pipe (41) is provided on the high-pressure centrifugal fan (4), the upper part of the connecting pipe (41) is connected to a filter housing (42), and the filter housing (42) is connected to a paint settling box (43).

4. The spraying machine for manufacturing anti-theft doors according to claim 3, characterized in that: The filter housing (42) is provided with a multi-stage replaceable membrane filter cartridge, and the filter cartridge is made of polytetrafluoroethylene.

5. The spraying machine for manufacturing anti-theft doors according to claim 3, characterized in that: A pulse back-blowing housing (5) is provided on the upper portion of the filter housing (42), a solenoid valve (51) is provided on the upper portion of the pulse back-blowing housing (5), and an air pump (52) is provided on the solenoid valve (51).

6. The spray coating machine for manufacturing anti-theft doors according to claim 3, characterized in that: The upper portion of the feed tank (12) is connected to a liquid extraction pump (6), and the liquid extraction pump (6) is connected to a circulation pipe (61) that passes through the paint settling box (43).

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