Automatic spraying device

Abstract

The utility model relates to the technical field of spraying devices, and discloses an automatic spraying device which is characterized in that pneumatic mixing is realized by arranging a pneumatic motor, a rotor, a separator and other structures, when spraying operation is not carried out, compressed air is introduced into a port A through a side flow pipe, is positioned in an eccentric cavity and surrounds a half circle, and blows a telescopic strip to rotate, so that the spraying operation is finished. When the telescopic strip is blown by the compressed air, the rotor rotates along with the telescopic strip, the rotor rotates to synchronously drive the stirring blades and the scraping strips, the stirring blades are located in the spraying tank to drive the coating to be evenly mixed, and when spraying operation is conducted, the remaining small part of compressed air enters the interior of the pneumatic motor through the side flow pipe. The stirring blades and the scraping strips are driven to rotate at a low rotating speed, the stirring blades ensure that the coating in the spraying tank is uniformly mixed, the state of precipitation and liquid material separation is avoided, and the effect of starting stirring to avoid liquid material separation is achieved.

Description

Technical Field

[0001] This utility model relates to the field of spraying equipment technology, and in particular to an automated spraying device. Background Technology

[0002] Automation is the process of achieving automated control of machines through mechanical means. Spraying equipment is a coating method that uses a spray gun or disc atomizer to disperse the material into uniform and fine droplets with the help of pressure or centrifugal force and apply them to the surface of the object to be coated. It can be divided into air spraying, airless spraying, electrostatic spraying, and various derivative methods of the above basic spraying forms, such as high-flow-rate low-pressure atomization spraying, thermal spraying, automatic spraying, and multi-group spraying.

[0003] In existing technologies, traditional spraying equipment causes liquid-liquid separation during spraying because the paint settles in the spray tank for a long time. This results in uneven paint distribution, with some areas having excessively high density and others having insufficient density, which reduces the quality of the paint during spraying. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automated spraying device that features pneumatic mixing and follow-up wall scraping, thus solving the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: an automated spraying device, including a spray can, a can cover is threaded on the top of the spray can, the outer ring of the bottom of the can cover is threaded to the inner ring of the top of the spray can, a pneumatic motor is fixedly installed on the top of the can cover, a liquid inlet head is fixedly connected to the top of the pneumatic motor, a liquid pipe is fixedly connected to one side of the liquid inlet head, the bottom of the liquid pipe is located inside the spray can, a spray gun is fixedly connected to the top of the liquid inlet head, a nozzle is installed at the end of the spray gun, a connector is provided at the bottom of the spray gun, and a distributor is fixedly installed at the end of the connector.

[0006] With the above structural design, the connection between the distributor and the pneumatic motor ensures that while spraying, a small amount of compressed air is introduced into the pneumatic motor to drive the paint to mix at a low speed, thus preventing liquid separation.

[0007] Preferably, the pneumatic motor has an A port and a B port on one side, and an eccentric cavity is formed inside the pneumatic motor. The eccentric cavity is connected to the A port and the B port. A rotor is rotatably installed inside the eccentric cavity. A telescopic strip is uniformly and slidably installed in a circular shape inside the rotor. When the telescopic strip extends, it fits into the interior of the eccentric cavity.

[0008] With the above structure, compressed air is introduced into the intake pipe through the side flow pipe, causing the telescopic bar to rotate inside the eccentric cavity due to the gas blowing. After the gas has circled half a revolution inside the eccentric cavity, it is discharged through port B and finally returns to the inside of the distributor through the outlet pipe and return pipe.

[0009] Preferably, the rotor is fixedly connected to a rotating shaft at its bottom via a coupling. The outer ring of the rotating shaft is uniformly fixedly mounted with stirring blades in a linear array. The bottom of the rotating shaft is uniformly fixedly mounted with a bottom strip in a circular shape. A scraper is fixedly mounted on the top of the bottom strip. The scraper is spirally arc-shaped, and one side of the scraper is in contact with the inner wall of the spray can.

[0010] With the above structural configuration, the rotor drives the shaft to rotate synchronously through the coupling. When the shaft rotates, it drives the stirring blade and scraper to rotate synchronously. The stirring blade mixes the paint inside the spray can evenly, avoiding the separation of liquid and material.

[0011] Preferably, the pneumatic motor is fixedly connected to an air pipe inside ports A and B, and the air pipe is divided into an inlet pipe and an outlet pipe.

[0012] With the above-described structure, the air intake pipe delivers compressed gas to the interior of the pneumatic motor, which then blows the telescopic strip inside the eccentric cavity to rotate it. During this process, the rotor drives the stirring blade and scraper to rotate.

[0013] Preferably, the splitter has split pipes at both ends, each split pipe including a side flow pipe and a return flow pipe. The side flow pipe is connected to the intake pipe, and the return flow pipe is connected to the outlet pipe.

[0014] With the above-described structure, compressed gas is trapped inside the distributor and transported into the side flow pipe, and then introduced into the pneumatic motor, which drives the pneumatic motor to stir the liquid inside the spray tank.

[0015] This utility model has the following advantages:

[0016] 1. This automated spraying device achieves pneumatic mixing through a structure including a pneumatic motor, rotor, and separator. When not spraying, compressed air enters port A through a side-flow pipe, circulating half a circumference inside the eccentric cavity, which blows the telescopic strip to rotate. The compressed air then flows back into the return pipe through port B. As the telescopic strip is blown by the compressed air, the rotor rotates accordingly. The rotor's rotation synchronously drives the stirring blades and scraper. The stirring blades, located inside the spray can, drive the paint to mix evenly. During spraying, a small portion of the remaining compressed air enters the pneumatic motor through the side-flow pipe, driving the stirring blades and scraper to rotate at a low speed. The stirring blades ensure that the paint inside the spray can is mixed evenly, preventing sedimentation and liquid separation, thus achieving the effect of starting stirring to avoid liquid separation.

[0017] 2. This automated spraying device avoids paint adhesion by setting up structures such as a bottom strip, scraper, and rotor. When the telescopic strip is blown by compressed air, the rotor rotates along with it. When the rotor rotates, it synchronously drives the stirring blade and scraper. As the liquid pipe sucks out the paint from the spray can during the spraying operation, the paint inside the spray can continuously decreases. Some paint may stick to the inner wall of the spray can. At this time, when the scraper rotates, it will scrape the paint evenly from the inner wall of the spray can and let it fall into the paint, achieving the effect of complete utilization of the paint. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the spray can of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the pneumatic motor of this utility model.

[0021] In the diagram: 1. Spray can; 11. Can lid; 2. Pneumatic motor; 21. Eccentric chamber; 22. Rotor; 23. Telescopic strip; 24. Shaft; 25. Stirring blade; 26. Bottom strip; 27. Scraper; 28. Air pipe; 3. Liquid inlet head; 31. Liquid pipe; 4. Spray gun; 41. Nozzle; 42. Connector; 5. Diverter; 51. Diverter pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-2 An automated spraying device includes a spray can 1, a can cover 11 with internal threads on the top of the spray can 1, the outer ring of the bottom of the can cover 11 being threadedly matched with the inner ring of the top of the spray can 1, a pneumatic motor 2 being fixedly installed on the top of the can cover 11, a liquid inlet head 3 being fixedly connected to the top of the pneumatic motor 2, a liquid pipe 31 being fixedly connected to one side of the liquid inlet head 3, the bottom of the liquid pipe 31 being located inside the spray can 1, a spray gun 4 being fixedly connected to the top of the liquid inlet head 3, a nozzle 41 being installed at the end of the spray gun 4, a connector 42 being provided at the bottom of the spray gun 4, and a distributor 5 being fixedly installed at the end of the connector 42.

[0024] In practical applications, this device, through the connection between the distributor 5 and the pneumatic motor 2, can ensure the spraying pressure while allowing a small portion of compressed air to enter the pneumatic motor 2 during spraying, thereby driving the paint to mix at low speed and preventing liquid separation. When not spraying, most of the compressed air enters the pneumatic motor 2 through the distributor pipe, driving the paint inside the spray can 1 to mix at high speed. At the same time, the scraper 27 circulates and scrapes the paint off the inner wall of the spray can 1, preventing the paint from sticking to the inner wall of the spray can 1 and becoming unusable.

[0025] Please see Figures 1-3 The pneumatic motor 2 has an A port and a B port on one side. The pneumatic motor 2 has an eccentric cavity 21 inside. The eccentric cavity 21 is connected to the A port and the B port. A rotor 22 is rotatably installed inside the eccentric cavity 21. A telescopic strip 23 is uniformly slidably installed in a circular shape inside the rotor 22. When the telescopic strip 23 is extended, it fits against the inside of the eccentric cavity 21.

[0026] Ports A and B of the pneumatic motor 2 are connected to the side flow pipe and return pipe of the distributor 5 via air pipe 28. Compressed air is introduced into the intake pipe through the side flow pipe, causing the telescopic bar 23 to rotate inside the eccentric cavity 21 due to the air blowing. After the air has circulated half a revolution inside the eccentric cavity 21, it is discharged through port B and finally returns to the inside of the distributor 5 through the outlet pipe and return pipe. This avoids the waste of compressed air, and the compressed air does not pick up external impurities after circulating inside the pneumatic motor 2, so it can continue to be used.

[0027] The pneumatic motor 2 is based on existing technology and is not fully explained in this application. For example, how the telescopic bar 23 extends out of the rotor 22 is described in detail in the prior art. In the prior art, the pneumatic motor 2 enters and exits air through ports A and B, which can blow the telescopic bar 23 to rotate. This will not be described in detail in this device.

[0028] Please see Figures 1-3 The rotor 22 is fixedly connected to the bottom of the shaft 24 by a coupling. The outer ring of the shaft 24 is uniformly fixedly installed with stirring blades 25 in a linear array. The bottom of the shaft 24 is uniformly fixedly installed with bottom strips 26 in a circular shape. The top of the bottom strips 26 is fixedly installed with scraper 27. The scraper 27 is spiral arc-shaped and one side of the scraper 27 is in contact with the inner wall of the spray can 1.

[0029] When the telescopic strip 23 and the rotor 22 are rotated by compressed air, the rotor 22 drives the rotating shaft 24 to rotate synchronously through the coupling. When the rotating shaft 24 rotates, it drives the stirring blade 25 and the scraper 27 to rotate synchronously. The stirring blade 25 mixes the paint inside the spray can 1 evenly, avoiding the separation of liquid and material. During spraying, the stirring blade 25 and the scraper 27 still rotate at a low speed. The scraper 27 can scrape off the liquid adhering to the inner wall of the spray can 1, ensuring that the paint inside the spray can 1 is fully utilized and avoiding waste due to adhesion.

[0030] Please see Figures 1-2 The pneumatic motor 2 is fixedly connected to the air pipe 28 inside the A and B ports. The air pipe 28 is divided into an inlet pipe and an outlet pipe. Compressed gas is delivered to the inside of the pneumatic motor 2 through the inlet pipe. The gas is blown into the telescopic strip 23 inside the eccentric cavity 21 to rotate. Then it is discharged from the outlet pipe. During this process, the rotor 22 is driven by the telescopic strip 23. The rotor 22 drives the stirring blade 25 and the scraper 27 to rotate. When the stirring blade 25 rotates, it drives the liquid material inside the spray can 1 to be stirred evenly. The scraper 27 scrapes off the material that sticks to the inner wall of the spray can 1, so as to achieve complete utilization of the material.

[0031] Please see Figures 1-2 The distributor 5 has a distributor pipe 51 at both ends. The distributor pipe 51 includes a side flow pipe and a return flow pipe. The side flow pipe is connected to the air inlet pipe, and the return flow pipe is connected to the air outlet pipe. The bottom of the distributor 5 is connected to an external air source. During use, compressed air is introduced into the distributor 5 through the external air source. When the spray gun 4 is not used for spraying, the compressed air is blocked inside the distributor 5 and transported into the side flow pipe. Then it is introduced into the pneumatic motor 2, which drives the liquid in the spray can 1 to stir. When the spray gun 4 is used for spraying, most of the compressed air inside the distributor 5 enters the spray gun 4 through the connector 42 and carries the paint out through the connection with the liquid inlet head 3. A small part of it enters the pneumatic motor 2 through the flow meter pipe, which drives the paint in the spray can 1 to mix at a low speed, so as to avoid the stirring blade 25 from stopping and causing the liquid to separate.

[0032] Working principle: During use, the mixed paint is injected into the spray can 1. Then, the can cap 11 is threaded onto the inner ring of the top of the can cap 11 to create a seal between the can cap 11 and the spray can 1. The distributor 5 is installed at the end of the connector 42. An external air source is then connected to the end of the distributor 5. Subsequently, the air pipe 28 is used to connect ports A and B to the side flow pipe and the return pipe. The external air source introduces compressed air into the distributor 5. Since no spraying operation is being performed at this time, the compressed air enters port A through the side flow pipe. The compressed air is located inside the eccentric cavity 21 and circulates half a circumference, blowing the telescopic strip 23 to rotate. Then, it flows back into the return pipe through port B. While the telescopic strip 23 is blown by the compressed air, the rotor 22 rotates accordingly. When the rotor 22 rotates, it synchronously drives the stirring blade 25 and the scraper 27. The stirring blade 25 is positioned... The paint inside the spray can 1 is mixed evenly. The scraper 27 scrapes off the paint adhering to the inner wall of the spray can 1. When spraying is required, most of the compressed air inside the distributor 5 enters the spray gun 4 through the connector 42, which then guides the paint from the liquid pipe 31 into the spray gun 4, and finally sprays it out from the nozzle 41. The remaining small portion of compressed air enters the pneumatic motor 2 through the side pipe, which drives the stirring blade 25 and the scraper 27 to rotate at a low speed. The stirring blade 25 ensures that the paint inside the spray can 1 is mixed evenly and there will be no sedimentation or separation of liquid and material. As the liquid pipe 31 sucks out the paint inside the spray can 1, the paint inside the spray can 1 continues to decrease. Some paint may stick to the inner wall of the spray can 1. At this time, when the scraper 27 rotates, it will scrape the paint evenly from the inner wall of the spray can 1 and let it fall into the paint, so as to achieve complete utilization of the paint.

Claims

1. An automated spraying device, comprising a spray can (1), characterized in that: The spray can (1) has a can cover (11) threaded on its top. The outer ring of the bottom of the can cover (11) is threaded to match the inner ring of the top of the spray can (1). A pneumatic motor (2) is fixedly installed on the top of the can cover (11). An inlet head (3) is fixedly connected to the top of the pneumatic motor (2). A liquid pipe (31) is fixedly connected to one side of the inlet head (3). The bottom of the liquid pipe (31) is located inside the spray can (1). A spray gun (4) is fixedly connected to the top of the inlet head (3). A nozzle (41) is installed at the end of the spray gun (4). A connector (42) is provided at the bottom of the spray gun (4). A distributor (5) is fixedly installed at the end of the connector (42).

2. The automated spraying device according to claim 1, characterized in that: The pneumatic motor (2) has an A port and a B port on one side. An eccentric cavity (21) is provided inside the pneumatic motor (2). The eccentric cavity (21) is connected to the A port and the B port. A rotor (22) is rotatably installed inside the eccentric cavity (21). A telescopic strip (23) is uniformly and circularly slidably installed inside the rotor (22). When the telescopic strip (23) extends, it fits against the inside of the eccentric cavity (21).

3. The automated spraying device according to claim 2, characterized in that: The rotor (22) is fixedly connected to a shaft (24) at the bottom via a coupling. The outer ring of the shaft (24) is uniformly fixedly equipped with stirring blades (25) in a linear array. The bottom of the shaft (24) is uniformly fixedly equipped with a bottom strip (26) in a circular ring. The top of the bottom strip (26) is fixedly equipped with a scraper (27). The scraper (27) is spiral arc-shaped, and one side of the scraper (27) is in contact with the inner wall of the spray can (1).

4. An automated spraying device according to claim 3, characterized in that: The pneumatic motor (2) is fixedly connected to the air pipe (28) inside the A port and the B port. The air pipe (28) is divided into an air inlet pipe and an air outlet pipe.

5. An automated spraying device according to claim 4, characterized in that: The splitter (5) has split pipes (51) at both ends. The split pipe (51) includes a side pipe and a return pipe. The side pipe is connected to the air inlet pipe, and the return pipe is connected to the air outlet pipe.

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