Timing and constant-pressure automatic oil spraying machine

Abstract

The utility model discloses a timing and constant-pressure automatic oil spraying machine which comprises an oil supply unit, a spraying gas supply unit and an electrical control system. The oil supply unit comprises an oil tank and a pneumatic diaphragm pump arranged below the oil tank, an oil outlet in the lower portion of the oil tank is connected with an oil inlet of the pneumatic diaphragm pump, and an oil outlet of the pneumatic diaphragm pump is connected with an oil inlet of the spray gun. The spraying air supply unit comprises a first pneumatic electromagnetic valve connected with the electric control system through an electric control circuit, the air inlet end of the first pneumatic electromagnetic valve is connected with an external air source, and the air outlet end of the first pneumatic electromagnetic valve is connected with a pneumatic diaphragm pump and a switch air path connector of the spraying gun. The mechanism can realize timed and constant-pressure spraying operation of oil spraying of different products, avoids oil waste, and is economical, practical and compact in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of oil injection equipment, in particular to a timing and pressure-constant automatic oil injection machine. Background Art

[0002] The existing oil spraying operation mainly uses manual spray guns to spray oil, which results in low oil spraying efficiency, and is prone to uneven spraying amount and spraying position deviation during manual spraying, which ultimately results in reduced product quality. Moreover, manual oil spraying easily results in a waste of oil.

[0003] Some oil injection operations also use automatic oil sprayers, but the corresponding oil injection equipment in the prior art has a relatively complex structure, and the control system cannot complete the timed and constant pressure injection of the spray gun. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a timing and constant pressure automatic oil sprayer to complete the timing and constant pressure spraying of oil, with a compact structure and a simple control system.

[0005] The technical solution of the utility model is: to realize the timed and pressure-controlled spraying of the spray gun, including an oil supply unit, a spray air supply unit and an electrical control system; the characteristics are:

[0006] The oil supply unit includes an oil tank and a pneumatic diaphragm pump arranged below the oil tank, the oil outlet at the bottom of the oil tank is connected to the oil inlet of the pneumatic diaphragm pump, and the oil outlet of the pneumatic diaphragm pump is connected to the oil inlet of the spray gun;

[0007] The injection air supply unit includes a 1# pneumatic solenoid valve, which is connected to the electrical control system through an electric control circuit, the air inlet end of the 1# pneumatic solenoid valve is connected to an external air source, and the air outlet end of the 1# pneumatic solenoid valve is respectively connected to the switch air circuit interfaces of the pneumatic diaphragm pump and the spray gun.

[0008] Its further technical solution is:

[0009] The injection air supply unit also includes a 2# pneumatic solenoid valve arranged in parallel with the 1# pneumatic solenoid valve, and the air outlet end of the 2# pneumatic solenoid valve is connected to the atomization air path interface of the spray gun.

[0010] Its further technical solution is:

[0011] The jet air supply unit also includes a pneumatic pressure regulating valve, one end of which is connected to an external air source, and the other end of which is connected to the air inlets of the 1# pneumatic solenoid valve and the 2# pneumatic solenoid valve respectively through a branching device.

[0012] Its further technical solution is:

[0013] An electronic liquid level gauge is arranged on the upper part of the oil tank. The electronic liquid level gauge is electrically connected to the electrical control system and realizes real-time monitoring of the liquid level in the oil tank through the oil level gauge on the control panel.

[0014] Its further technical solution is:

[0015] A visual liquid level gauge is provided on the outer side of the oil tank.

[0016] Its further technical solution is:

[0017] A one-way valve is arranged at the oil outlet of the pneumatic diaphragm pump.

[0018] Its further technical solution is:

[0019] The control panel is also provided with an oil shortage alarm device matched with the electronic liquid level meter.

[0020] Its further technical solution is:

[0021] The spray gun is mounted on a double-rod magnetic base to enable installation at any position on the equipment

[0022] The beneficial technical effect of the utility model is as follows: a pneumatic pressure regulating valve and a pneumatic solenoid valve are arranged in the injection air supply unit, and the pneumatic pressure regulating valve is adjusted to adjust the air pressure entering the pneumatic diaphragm pump and realize constant-pressure oil spraying of the spray gun; the pneumatic solenoid valve is connected to the electric control circuit of the electrical control system, and the electrical control system controls the timed oil spraying of the spray gun through the pneumatic solenoid valve to realize the timed constant-pressure spraying operation of different products, avoid oil waste, be economical and practical, and have a compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a side view schematic diagram of the overall structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the placement box of the utility model;

[0026] Figure 4 This is a schematic diagram of the outer side structure of the placement box of the utility model;

[0027] Figure 5 This is a schematic diagram of the installation position of the spray gun of the utility model;

[0028] Figure 6 This is the gas circuit principle diagram of the jet air supply unit of the utility model;

[0029] Among them: 1. Oil tank; 11. Electronic liquid level gauge; 12. Oil filling port; 13. Visual liquid level gauge; 2. Electric control box; 21. Control panel; 3. Placement box; 31. Pneumatic diaphragm pump; 32. Air source interface; 33. Oil port; 34. Spray gun switch port; 35. Atomization port; 4. Spray gun; 41. Switch air circuit interface; 42. Atomization air circuit interface; 43. Oil inlet; 5. Check valve; 6. 1# pneumatic solenoid valve; 7. Pneumatic pressure regulating valve; 8. 2# pneumatic solenoid valve; 9. Magnetic seat. DETAILED DESCRIPTION

[0030] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0031] like Figures 1 to 5 As shown, the utility model discloses a timed and pressure-controlled automatic oil sprayer, comprising a machine platform, the upper portion of which is provided with an armrest, and the bottom of which is provided with two universal casters and two fixed casters; an oil tank 1 and an electric control box 2 are provided on the machine platform, the oil tank 1 is used to store oil, an electronic liquid level gauge 11 and an oil filling port 12 for oil filling are provided on the upper portion of the oil tank 1, a visual liquid level gauge 13 is provided on the outer side of the oil tank 1, and the liquid level in the oil tank can be manually observed, and a placement box 3 for placing a pneumatic diaphragm pump 31 is also provided under the oil tank 1; the electric control box 2 provides power and precise operation control for the operation of the entire machine, and an electrical control system with a control panel 21 is provided in the electric control box 2.

[0032] In this embodiment, various structures are integrated to form an oil supply unit and an injection air supply unit to achieve timed and constant pressure injection of the spray gun 4 .

[0033] The oil supply unit includes an oil tank 1, the oil outlet at the bottom of the oil tank 1 is connected to the oil inlet of the pneumatic diaphragm pump 31 through an oil delivery pipe, and the oil outlet of the pneumatic diaphragm pump 31 is connected to the oil inlet 43 of the spray gun 4. Further, in order to prevent the oil from flowing back to the pneumatic diaphragm pump 31, a one-way valve 5 is provided at the oil outlet of the pneumatic diaphragm pump 31.

[0034] like Figure 6As shown, the injection air supply unit includes a 1# pneumatic solenoid valve 6 arranged in the placement box 3, the air inlet end of the 1# pneumatic solenoid valve 6 is connected to the external air source through the pneumatic pressure regulating valve 7, and the air outlet end of the 1# pneumatic solenoid valve 6 is respectively connected to the pneumatic diaphragm pump 31 and the switch air circuit interface 41 of the spray gun 4; when the 1# pneumatic solenoid valve 6 is energized, the external air source provides a power air source for the pneumatic diaphragm pump 31 through the 1# pneumatic solenoid valve 6, and at the same time provides an air source for the spray gun switch air circuit interface 41 to control the oil to be sprayed out through the spray gun 4; further, it also includes a 2# pneumatic solenoid valve 8 arranged in parallel with the 1# pneumatic solenoid valve 6, and the air outlet end of the 2# pneumatic solenoid valve 8 is connected to the atomization air circuit interface 42 of the spray gun 4, which is used to control the oil to be sprayed in a mist form.

[0035] The electronic liquid level meter 11 is electrically connected to the electrical control system and monitors the liquid level in the oil tank in real time through the oil level meter on the control panel 21; the 1# pneumatic solenoid valve 6 and the 2# pneumatic solenoid valve 8 are connected to the electrical control system through an electrical control line, and the actuator is controlled through the control data built into the electrical control system, that is, the 1# pneumatic solenoid valve 6 and the 2# pneumatic solenoid valve 8 control when the spray gun 4 sprays oil, the duration of the spraying oil, etc. The control panel 21 is also provided with an oil shortage alarm device that cooperates with the electronic liquid level meter 11, and when the oil tank 1 is short of oil, an alarm signal is issued.

[0036] Furthermore, the pneumatic pressure regulating valve 7 is arranged on the side of the placement box 3, and a pressure gauge is provided on the pneumatic pressure regulating valve 7, and the air source pressure is accurately adjusted by the pressure gauge; the placement box 3 is also provided with an air source interface 32, an oil port 33, a spray gun switch port 34 and an atomization port 35 in parallel below the pneumatic pressure regulating valve 7; one end of the air source interface 32 is connected to the external air source, and the other end is connected to the air inlet of the 1# pneumatic solenoid valve 6 and the 2# pneumatic solenoid valve 8 through a branching device; One end of the oil port 33 is connected to the oil inlet 43 of the external spray gun 4, and the other end of the oil port 33 is connected to the oil outlet of the pneumatic diaphragm pump 31; one end of the spray gun switch port 34 is connected to the switch air circuit interface 41 of the spray gun 4 through the outside, and the other end of the spray gun switch port 34 is connected to the air outlet of the 1# pneumatic solenoid valve 6; one end of the atomization port 35 is connected to the atomization air circuit interface 42 of the spray gun 4, and the other end of the atomization port 35 is connected to the 2# pneumatic solenoid valve 8.

[0037] In this embodiment, the spray gun 4 is supported by a double-rod magnetic base 9 and can be installed at any position of the equipment, so that the installation and adjustment are convenient and quick. The spray gun 4 is an automatic spray gun with a small size and convenient adjustment.

[0038] When in use, first connect the oil inlet 43, the switch air circuit interface 41, and the atomizing air circuit interface 42 of the spray gun 4 to the oil port 33, the spray gun switch port 34 and the atomizing port 35 respectively, and connect the external air source to the air source interface 32; then adjust the position of the magnetic seat 9 and the spray gun angle according to the shape of the product, so that the oil mist sprayed by the spray gun 4 can be evenly sprayed on the surface of the product; then turn on the power switch on the electric control box 2, and turn on the air source switch; then adjust the pressure of the injection air supply unit by adjusting the pneumatic pressure regulating valve 7, and control the 1# pneumatic solenoid valve 6 and the 2# pneumatic solenoid valve 8 through the electrical control system to control the oil supply time of the oil supply unit.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A timed and constant pressure automatic oil sprayer, used to realize timed and constant pressure spraying of a spray gun (4), comprising an oil supply unit, an injection air supply unit and an electrical control system; characterized in that: The oil supply unit comprises an oil tank (1) and an air-operated diaphragm pump (31) arranged below the oil tank (1); the oil outlet at the bottom of the oil tank (1) is connected to the oil inlet of the air-operated diaphragm pump (31); and the oil outlet of the air-operated diaphragm pump (31) is connected to the oil inlet (43) of the spray gun (4); The injection air supply unit comprises a 1# pneumatic solenoid valve (6), wherein the 1# pneumatic solenoid valve (6) is connected to the electrical control system via an electrical control circuit, an air inlet end of the 1# pneumatic solenoid valve (6) is connected to an external air source, and an air outlet end of the 1# pneumatic solenoid valve (6) is respectively connected to a pneumatic diaphragm pump (31) and a switch air circuit interface (41) of the spray gun (4).

2. The timing and pressure automatic oil injection machine according to claim 1, characterized in that: The injection air supply unit further comprises a 2# pneumatic solenoid valve (8) arranged in parallel with the 1# pneumatic solenoid valve (6), and the air outlet end of the 2# pneumatic solenoid valve (8) is connected to the atomizing air circuit interface (42) of the spray gun (4).

3. The timing and pressure automatic oil injection machine according to claim 2, characterized in that: The jet air supply unit also includes a pneumatic pressure regulating valve (7), one end of which is connected to an external air source, and the other end of which is connected to the air inlets of the 1# pneumatic solenoid valve (6) and the 2# pneumatic solenoid valve (8) respectively through a branching device.

4. The timing and pressure automatic oil injection machine according to claim 1, characterized in that: An electronic liquid level meter (11) is arranged on the upper part of the oil tank (1); the electronic liquid level meter (11) is electrically connected to the electrical control system and enables real-time monitoring of the liquid level in the oil tank (1) through the oil level gauge on the control panel (21).

5. The timing and pressure automatic oil injection machine according to claim 1, characterized in that: The outer side of the oil tank (1) is provided with a visual liquid level gauge (13).

6. The timing and pressure automatic oil injection machine according to claim 1, characterized in that: A one-way valve (5) is provided at the oil outlet of the pneumatic diaphragm pump (31).

7. The timing and pressure automatic oil injection machine according to claim 4, characterized in that: The control panel (21) is also provided with an oil shortage alarm device which cooperates with the electronic liquid level meter (11).

8. The timing and pressure automatic oil injection machine according to claim 1, characterized in that: The spray gun (4) is arranged on a double-rod magnetic seat (9) so as to be installed at any position of the equipment.

Images