Silicone oil spraying device

Abstract

The utility model provides a silicone oil spraying device which comprises a base and one or more spray guns, the spray guns are fixedly arranged at the upper end of the base, and the base is connected with a lifting device to move up and down; the base is provided with a through hole corresponding to the spray gun; the spray gun comprises a spray needle and a base, the spray needle is composed of an inner pipe and an outer pipe which are sleeved inside and outside, a compressed air inlet communicated with the outer pipe is formed in the side face of the base, and a silicone oil inlet communicated with the inner pipe is formed in the position, corresponding to the through hole, of the bottom end of the base. An electromagnetic heating part is arranged on the outer side of the inner pipe, and a spiral track is arranged in a cavity between the inner pipe and the outer pipe to change the flowing direction of air; a conical blocking piece is fixedly arranged at the top of the spray gun, and two to four hollowed-out openings are formed in the side face of the blocking piece. The spray nozzle has the beneficial effects that the spiral track is arranged in the cavity between the inner pipe and the outer pipe, so that the flowing direction of compressed air can be changed, a rotational flow effect is formed, atomization of silicone oil is facilitated, and the spraying uniformity is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of silicone oil spraying devices, and specifically to a silicone oil spraying device. Background Technology

[0002] With technological advancements, packaging machinery is becoming increasingly automated. In our company's R&D process, we need to perform siliconization treatment on the inner walls of medicine bottles to reduce frictional resistance during use. Siliconization of the inner walls requires using an atomizing spray gun to evenly spray silicone oil onto the bottle's inner wall. Currently, commercially available atomizing spray guns typically include an oil tube, an inner tube, an outer tube, and an air source tube. The inner and outer tubes are coaxially arranged, with the outer tube surrounding the circumference of the inner tube. However, this design has some shortcomings:

[0003] First, when spraying silicone oil into the bottle by pointing the nozzle upwards, or spraying it at the bottle opening, more silicone oil is applied near the bottle opening. To ensure sufficient lubrication in all areas, more silicone oil is needed.

[0004] Secondly, another spraying method involves starting the spray after the nozzle enters the bottle opening, and gradually and evenly spraying silicone oil throughout the bottle as the spray gun spirals upward. However, this requires a 0-30° tilt angle between the spray gun's central axis and the bottle's central axis. When the spray gun is tilted and rotated, it is prone to colliding with the bottle, posing a quality risk.

[0005] In addition, considering the physical properties of silicone oil, to achieve uniform spraying, the silicone oil needs to be heated to 30~40℃ in the silicone oil pipeline, which involves a large heating area and results in significant energy waste. Utility Model Content

[0006] The purpose of this invention is to provide a silicone oil spraying device that achieves more uniform silicone oil spraying and improves spraying efficiency.

[0007] This utility model provides a silicone oil spraying device, including a base and one or more spray guns. The spray guns are fixedly mounted on the upper end of the base, and the base is connected to a lifting device that moves up and down.

[0008] The base has through holes corresponding to the position of the spray gun;

[0009] The spray gun includes a spray needle and a base. The spray needle consists of an inner tube and an outer tube with inner and outer sleeves. The base has a compressed air inlet connected to the outer tube on its side and a silicone oil inlet connected to the inner tube at the bottom corresponding to the through hole. An electromagnetic heating element is provided on the outside of the inner tube. A spiral track is provided in the cavity between the inner and outer tubes to change the airflow direction. A conical blocking element is fixedly provided on the top of the spray gun. The blocking element has 2 to 4 hollowed-out holes on its side.

[0010] As a preferred embodiment, a wiping assembly is provided on the outside of the spray needle, including clamps and wiping components symmetrically arranged on both sides. The clamps are connected to a pushing device. The wiping components are semi-circular. The clamps are provided with connecting rods to fix the wiping components. The pushing device pushes the semi-circular wiping components on both sides to surround the spray needle.

[0011] As a preferred embodiment, the distance between the lower end of the conical blocking member and the upper end of the inner tube is 5 to 10 mm.

[0012] As a preferred embodiment, the electromagnetic heating component is equipped with a temperature sensor to maintain the nozzle temperature above a set threshold.

[0013] As a preferred embodiment, the set threshold is 30 to 50°C.

[0014] As a preferred embodiment, the number of spray guns is 1 to 12, arranged side by side on the upper part of the base.

[0015] As a preferred embodiment, the lifting device and the pushing device are equipped with a cycle counter to control the number of wiping cycles.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The spray needle of this invention consists of an inner tube and an outer tube, with the inner tube conveying silicone oil and the outer tube conveying compressed air. This design effectively separates the flow paths of the silicone oil and air, preventing uneven mixing or clogging. A spiral track is installed within the cavity between the inner and outer tubes, which changes the flow direction of the compressed air, creating a swirling effect that aids in the atomization of the silicone oil and improves spray uniformity. Furthermore, an electromagnetic heating element is installed on the outer side of the inner tube to heat the silicone oil, reducing its viscosity and making it easier to atomize, while simultaneously improving spraying efficiency and quality. The electromagnetic heating element is also equipped with a temperature sensor to ensure that the spray needle temperature remains above a set threshold (30 to 50°C), preventing the silicone oil from becoming too viscous due to low temperature, which would affect the spraying effect.

[0018] 2. This utility model further optimizes the spraying effect through the design of the conical blocking component. The conical blocking component at the top of the spray gun can change the flow direction of silicone oil and air, further enhancing the atomization effect and making the silicone oil spraying more uniform. The blocking component has 2 to 4 perforations on its side, which can adjust the airflow and silicone oil spraying direction to adapt to different spraying needs.

[0019] 3. The design of the wiping component in this invention provides an automatic cleaning function for the spray gun. A wiping component, including a semi-circular wiping element and a pushing device, is installed on the outside of the spray needle. This automatically cleans the surface of the spray needle, preventing silicone oil residue or clogging and extending the service life of the spray gun. The lifting and pushing devices are also equipped with a cycle counter, which can precisely control the number of wiping cycles, ensuring cleaning effectiveness while avoiding excessive wear. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This utility model's spray gun has a structural schematic diagram.

[0023] Figure 3 This utility model's base structure diagram.

[0024] The numbers in the attached diagram are:

[0025] 1. Base; 2. Spray gun; 21. Spray needle; 211. Inner tube; 212. Outer tube; 213. Spiral track; 22. Base; 221. Compressed air inlet; 222. Silicone oil inlet; 23. Conical blocking component; 24. Hollowed-out opening; 25. Electromagnetic heating component; 3. Wiping assembly; 31. Clamp; 32. Wiping component; 33. Connecting rod. Detailed Implementation

[0026] To illustrate the features of this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will further explain this utility model.

[0027] Example:

[0028] Please see Figures 1 to 3 This utility model provides a silicone oil spraying device, including a base 1 and one or eight spray guns 2 arranged side by side on the upper end of the base 1. The base 1 is connected to a lifting device that moves up and down.

[0029] The base 1 has a through hole corresponding to the position of the spray gun 2 so that silicone oil can be introduced into the spray gun 2;

[0030] The spray gun 2 includes a spray needle 21 and a base 22. The spray needle 21 consists of an inner tube 211 and an outer tube 212, which are fitted together. The base 22 has a compressed air inlet 221 on its side, which connects to the outer tube 212. A silicone oil inlet 222 is located at the bottom end corresponding to the through hole, which connects to the inner tube 211. An electromagnetic heating element 25 is installed on the outside of the inner tube 211. The electromagnetic heating element 25 is equipped with a temperature sensor to maintain the temperature of the spray needle 21 above a set threshold, which is 50°C in this embodiment. Maintaining the spray needle temperature above the set threshold prevents the silicone oil from becoming too viscous due to low temperature, thus affecting the coating effect.

[0031] A spiral track 213 is installed in the cavity between the inner tube 211 and the outer tube 212 to change the airflow direction. This changes the direction of compressed air flow from a straight forward direction to a deflected forward direction, causing the entire compressed air to rotate. This rotation drives the silicone oil, causing it to break into several parts and accelerating droplet atomization under the rotation of the gas. A conical obstructor 23 is fixedly installed at the top of the spray gun 2, with the lower end of the conical obstructor 23 10mm away from the upper end of the inner tube 211. Four perforations 24 are provided on the side of the obstructor 23. The conical obstructor further enhances the atomization effect, making the silicone oil spraying more uniform. The two to four perforations on the side of the obstructor can adjust the airflow and silicone oil spray direction to adapt to different spraying needs.

[0032] In addition, this embodiment includes a wiping assembly 3 on the outside of the spray needle 21, comprising clamps 31 and wiping elements 32 symmetrically arranged on both sides. The clamps 31 are connected to a pushing device. The wiping elements 32 are semi-circular, and the clamps 31 are fixedly connected to the wiping elements 32 by connecting rods 33. The pushing device pushes the semi-circular wiping elements 32 to surround the spray needle 21. This achieves automatic cleaning of the spray needle surface, prevents silicone oil residue or clogging, and extends the service life of the spray gun. The lifting device and the pushing device are also equipped with a cycle counter, which can precisely control the number of wiping cycles, ensuring cleaning effect while avoiding excessive wear.

[0033] In addition, this embodiment also sets a cycle counter for the lifting device and the pushing device to control the number of wiping times, further improving the automation level of this embodiment.

[0034] The above embodiments and accompanying drawings are only used to illustrate the technical solutions of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model. Other related technical structures not disclosed in detail in this utility model are existing technologies in the art.

Claims

1. A silicone oil spraying device characterized by: It comprises a base (1) and one or more spray guns (2) fixedly arranged on the upper end of the base (1), and the base (1) is connected with a lifting device to move up and down; The base (1) is provided with a through hole corresponding to the position of the spray gun (2); The spray gun (2) comprises a spray needle (21) and a base (22), the spray needle (21) is composed of an inner tube (211) and an outer tube (212) arranged in layers, the base (22) is provided with a compressed air inlet (221) on the side to communicate with the outer tube (212), and a silicone oil inlet (222) is arranged at the bottom end to communicate with the inner tube (211) corresponding to the position of the through hole; an electromagnetic heating component (25) is arranged on the outer side of the inner tube (211), a spiral track (213) is arranged in the cavity between the inner tube (211) and the outer tube (212) to change the flow direction of air; a conical blocking piece (23) is fixedly arranged on the top of the spray gun (2), and 2-4 hollow openings (24) are arranged on the side of the conical blocking piece (23).

2. The silicone oil spraying device according to claim 1, characterized in that: A wiping assembly (3) is arranged on the outer side of the spray needle (21), which comprises two symmetrically arranged clamps (31) and wiping members (32), the clamps (31) are connected with a pushing device, the wiping members (32) are semicircular, the clamps (31) are provided with connecting rods (33) to fixedly connect the wiping members (32), and the pushing device pushes the semicircular wiping members (32) on both sides to wrap around the spray needle (21).

3. The silicone oil spraying device of claim 1, wherein: The distance between the lower end of the conical blocking piece (23) and the upper end of the inner tube (211) is 5-10 mm.

4. The silicone oil spraying device of claim 1, wherein: The electromagnetic heating component (25) is provided with a temperature sensor to keep the temperature of the spray needle (21) above a set threshold value.

5. The silicone oil spraying device of claim 4, wherein: The set threshold value is 30-50℃.

6. The silicone oil spraying device of claim 1, wherein: The number of the spray guns (2) is 1-12, and they are arranged side by side on the upper end of the base (1).

7. The silicone oil spraying device of claim 2, wherein: The lifting device and the pushing device are provided with a cycle counter to control the wiping frequency.

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