Spraying nozzle for spraying

Abstract

The spraying nozzle comprises a shell, the top of the shell is fixedly connected with a spraying head, the center of the spraying head is fixedly connected with an inner pipe, the bottom of the shell is provided with a feeding port, the center of the shell is provided with a feeding channel communicated with the feeding port and the inner pipe, and the center of the shell is provided with a closing assembly. A valve cover bolt is installed on one side of the shell, a stainless steel ball is installed in the center of the feeding channel, a base is fixedly connected to the bottom of the shell, a positioning stud is installed between the shell and the base, and an air inlet corresponding to the feeding channel is formed in the bottom of the shell. When the nozzle is not used, the reset spring can exert elastic force on the piston, then the piston enters the center of the guide sleeve, the piston can be automatically closed when pressure is not applied, it is ensured that liquid cannot continue to flow out when the nozzle stops spraying, liquid waste is reduced, and the nozzle is protected against unnecessary damage.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial production and processing equipment, in particular to a spray nozzle for spraying. Background Art

[0002] A mold release agent spray head is a device used to evenly spray a mold release agent (also known as a mold release agent or a mold anti-sticking agent) on the surface of a mold or other surfaces that require anti-sticking treatment. It usually adopts a special design to ensure that the mold release agent can be coated on the target surface in a uniform and effective manner, thereby preventing material adhesion in mold production or other industrial applications.

[0003] At present, the current spray nozzle may not ensure sufficient mixing of the mold release agent and air during the spraying process, resulting in uneven coating, affecting the demolding effect, and there are potential safety hazards caused by improper mixing of the mold release agent and air. The use effect is poor, and when spraying, the particle size of the sprayed mold release agent is inconsistent due to different pressures, thus affecting its coverage and effect on the mold surface. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a spray nozzle for spraying to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A spray nozzle for spraying, including a housing, a spray head is fixedly connected to the top of the housing, an inner tube is fixedly connected to the center of the spray head, a feed inlet is opened at the bottom of the housing, a feed channel communicating with the feed inlet and the inner tube is arranged in the center of the housing, and a closing component is arranged in the center of the housing;

[0007] A valve cover bolt is installed on one side of the housing, a stainless steel ball is installed in the center of the feed channel, a base is fixedly connected to the bottom of the housing, a positioning stud is installed between the housing and the base, two mounting studs are installed at the front end of the top of the base, and an air inlet corresponding to the feed channel is arranged at the bottom of the housing.

[0008] In a preferred embodiment of the utility model, a sealing ring is installed at the feed inlet.

[0009] In a preferred embodiment of the utility model, the closing component includes a guide sleeve fixedly connected to the center of the housing, a feed hole connected to the feed channel is opened on the guide sleeve, a piston is arranged in the center of the guide sleeve, a spring cover is installed on the other side of the housing, and a return spring is fixedly connected between the piston and the spring cover.

[0010] In a preferred embodiment of the utility model, the guide sleeve is made of ceramic as the raw material.

[0011] In a preferred embodiment of the present utility model, two sealing rings are fixedly connected to the inner wall of the guide sleeve, and an O-ring is fixedly connected to the outer wall of the piston.

[0012] In a preferred embodiment of the present utility model, through holes corresponding to the feed port and the air inlet are formed in the base.

[0013] In a preferred embodiment of the present utility model, two mounting holes are formed in both the housing and the base, and the two positioning studs both penetrate through the centers of the corresponding mounting holes.

[0014] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model.

[0015] The difference from the prior art lies in that: through the arrangement of multiple components, the release agent and air enter through two apertures, and then are mixed in the center of the housing. The release agent is sprayed out in a small particle state by compressed air, thereby achieving the spraying effect, ensuring the full mixing of the release agent and air, and the consistent particle size of the release agent, thus ensuring its coverage and effect on the mold surface. Through the arrangement of the closing assembly, when not in use, the return spring can exert an elastic force on the piston, and then the piston enters the center of the guide sleeve, so that the piston can automatically close when no pressure is applied, ensuring that the nozzle will not continue to flow out liquid when spraying stops, thereby reducing liquid waste and protecting the nozzle from unnecessary damage. The strength and design of the spring can control the opening force of the piston, that is, under the push of liquid pressure, the piston can be opened in a timely manner and quickly closed when the liquid flow stops, with good use effects. The guide sleeve ensures that the piston can move vertically during operation and will not deviate from the correct position due to the vibration of the equipment or the working pressure, and at the same time can reduce the frictional resistance of the piston inside the housing, ensuring that the piston can move smoothly, thus ensuring the stability and consistency during the spraying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0017] Figure 1 is an overall external view of a spray nozzle for spraying;

[0018] Figure 2 is a top view of a spray nozzle for spraying;

[0019] Figure 3 is Figure 2 a cross-sectional view taken along line A-A in

[0020] In the figure: 1. housing; 2. nozzle; 3. inner tube; 4. feed inlet; 401. sealing ring; 5. feed channel; 6. closing assembly; 601. guide sleeve; 6011. sealing ring; 602. piston; 6021. O-ring; 603. spring cover; 604. return spring; 7. valve cover bolt; 8. stainless steel ball; 9. base; 10. positioning stud; 11. mounting stud; 12. air inlet. Detailed implementation mode

[0021] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0022] Please refer to Figures 1-3 , a spray nozzle for spraying, comprising a housing 1, a nozzle 2 is fixedly connected to the top of the housing 1, an inner tube 3 is fixedly connected to the center of the nozzle 2, a feed inlet 4 is opened at the bottom of the housing 1, a feed channel 5 communicating with the inner tube 3 is arranged in the center of the housing 1, and a sealing ring 401 is installed at the feed inlet 4; so that after the housing 1 is installed with the base 9, the sealing ring 401 can have a good sealing effect, thereby preventing the leakage of the release agent after entering, improving the use effect of the nozzle.

[0023] As Figure 1 and Figure 3As shown, a closing assembly 6 is provided at the center of the housing 1; the closing assembly 6 includes a guide sleeve 601 fixedly connected to the center of the housing 1. The guide sleeve 601 is made of ceramic as the raw material, so that the guide sleeve 601 made of ceramic has extremely high hardness and excellent wear resistance, is not easily worn during the flow of high-speed liquid or gas, and at the same time has high chemical stability and inertness, can resist corrosion and chemical erosion. The inner wall of the guide sleeve 601 made of ceramic has a high degree of smoothness, and thus the friction coefficient is small. It can not only reduce the frictional force of the piston 602 moving, but also reduce the frictional resistance when the fluid passes through, improve the spraying efficiency and ensure the uniform flow of the fluid. The guide sleeve 601 is provided with a feed hole connected to the feed channel 5, and a piston 602 is provided at the center of the guide sleeve 601. Two sealing rings 6011 are fixedly connected to the inner wall of the guide sleeve 601, and an O-ring 6021 is fixedly connected to the outer wall of the piston 602; after the piston 602 enters the center of the guide sleeve 601, the sealing ring 6011 can play a good sealing role for the piston 602, prevent the fluid from leaking through the gap, reduce liquid waste and protect the nozzle from unnecessary damage. The O-ring 6021 can reduce the friction of the piston 602 on the inner wall of the housing 1, make the movement and operation of the piston 602 smoother and more stable, and also helps to extend the service life of the O-ring 6021 and the equipment. A spring cover 603 is installed on the other side of the housing 1, and a return spring 604 is fixedly connected between the piston 602 and the spring cover 603; due to the action of the liquid thrust, the piston 602 moves in the direction of the return spring 604, and the return spring 604 is compressed. The release agent enters the center of the guide sleeve 601, and then enters the feed channel 5 through the feed hole. At this time, compressed air also enters the feed channel 5 through the feed hole. The release agent is fully mixed with the compressed air and then sprayed out through the inner tube 3. A valve cover bolt 7 is installed on one side of the housing 1, a stainless steel ball 8 is installed at the center of the feed channel 5, a base 9 is fixedly connected to the bottom of the housing 1, and a positioning stud 10 is installed between the housing 1 and the base 9. Two mounting holes are provided on both the housing 1 and the base 9, and both positioning studs 10 pass through the centers of the corresponding mounting holes; so that the housing 1 and the base 9 can be quickly positioned and installed through the two positioning studs 10, and the housing 1 can be stably installed on the base 9, and then the base 9 can be fixedly installed, ensuring the spraying effect. Two mounting studs 11 are installed at the front end of the top of the base 9, an air inlet 12 corresponding to the feed channel 5 is provided at the bottom of the housing 1, and through holes corresponding to the feed port 4 and the air inlet 12 are provided on the base 9; the release agent and compressed air can be added through the two through holes, improving the use stability of the equipment and at the same time ensuring the normal addition of materials.

[0024] The working principle of the present utility model is as follows: First, the release agent is added through the feed port 4, and then compressed air is added through the air inlet 12. Due to the action of the liquid thrust, the piston 602 moves towards the direction of the return spring 604, and the return spring 604 is compressed. The release agent enters the center of the guide sleeve 601, and then enters the feed channel 5 through the feed hole. At this time, the compressed air also enters the feed channel 5 through the feed hole. The release agent and the compressed air are fully mixed and then sprayed out through the inner tube 3. The stainless steel ball 8 can help mix and disperse the components in the release agent, ensuring a uniform mixing state when spraying, improving the uniformity of the coverage of the release agent on the surface of the workpiece, and ensuring the consistency of the demoulding effect. When not in use, the piston 602 can be reset due to the resilience of the return spring 604, thereby achieving closed sealing.

[0025] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A spray nozzle for spraying, comprising a housing (1), characterized in that: A spray head (2) is fixedly connected to the top of the housing (1). An inner pipe (3) is fixedly connected to the center of the spray head (2). A feed inlet (4) is formed at the bottom of the housing (1). A feed channel (5) communicating with the feed inlet (4) and the inner pipe (3) is arranged at the center of the housing (1). A closing assembly (6) is arranged at the center of the housing (1). A valve cover bolt (7) is installed on one side of the housing (1). A stainless steel ball (8) is installed at the center of the feed channel (5). A base (9) is fixedly connected to the bottom of the housing (1). A positioning stud (10) is installed between the housing (1) and the base (9). Two mounting studs (11) are installed at the front end of the top of the base (9). An air inlet (12) corresponding to the feed channel (5) is arranged at the bottom of the housing (1).

2. The spray nozzle for spraying according to claim 1, characterized in that, A sealing ring (401) is installed at the feed inlet (4).

3. A spray nozzle for spraying according to claim 1, characterized in that, The closing assembly (6) includes a guide sleeve (601) fixedly connected to the center of the housing (1). A feed hole connected to the feed channel (5) is formed in the guide sleeve (601). A piston (602) is arranged at the center of the guide sleeve (601). A spring cover (603) is installed on the other side of the housing (1). A return spring (604) is fixedly connected between the piston (602) and the spring cover (603).

4. A spray nozzle for spraying according to claim 3, characterized in that, The guide sleeve (601) is made of ceramic as the raw material.

5. A spray nozzle for spraying according to claim 3, characterized in that, Two sealing rings (6011) are fixedly connected to the inner wall of the guide sleeve (601). An O-ring (6021) is fixedly connected to the outer wall of the piston (602).

6. The spray nozzle for spraying according to claim 1, characterized in that, Through holes corresponding to the feed inlet (4) and the air inlet (12) are formed in the base (9).

7. The spray nozzle for spraying according to claim 1, characterized in that, Two mounting holes are formed in both the housing (1) and the base (9). Both of the two positioning studs (10) penetrate through the centers of the corresponding mounting holes.

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