Plastic spraying nozzle capable of realizing high gloss

By designing a plastic spray nozzle that includes a cone cup and multiple cone-shaped pieces, the problem of the existing nozzle being unable to adjust the powder feed amount and control the spray thickness is solved, achieving better powder ejection uniformity and workpiece surface high gloss.

CN222385063UActive Publication Date: 2025-01-24NINGBO LITU METAL PROD CO LTD
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Patent Information

Application Number
CN202420929798.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2025-01-24
Estimated Expiration
2034-04-30

AI Technical Summary

Technical Problem

The existing plastic spray nozzles cannot adjust the feed amount of powder, resulting in the inability to effectively control the spraying speed, discrete or concentrated powder, and the surface of high-gloss plastic spray workpieces cannot be achieved.

Method used

Designed a spray spray head that includes a tapered cup and multiple tapered sheets. It connects to the feed interface through the flexible pipeline. The tapered sheet can adjust the size of the opening to control the amount of powder. , Mix the high -pressure airflow with the powder to achieve evenly.

Benefits of technology

Through this design, users can better control the amount and uniformity of the spray of powder, ensure the gloss of the surface of the plastic workpiece, and solve the problem that the existing nozzle cannot control the thickness of the spraying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plastic spraying nozzle capable of achieving high gloss, and belongs to the technical field of plastic spraying nozzles. The plastic spraying nozzle comprises a nozzle shell, a conical cup, a gas inlet pipe and a feeding barrel; a feeding connector is fixedly connected to the side face of the spray head shell, a conical guide piece is arranged on the inner side of the feeding connector, a center opening of the conical guide piece is connected with the thin opening end of the conical cup through a flexible pipeline, a plurality of conical pieces are fixedly connected to the position, located above the conical guide piece, of the inner side of the feeding connector, and the conical pieces form a cone. And a gap is formed between every two adjacent conical sheets. According to the utility model, the conical cup is designed and is directly connected with the feeding interface through the flexible pipeline, and the conical structure formed by the plurality of conical sheets capable of adjusting the size of the opening is designed, so that a user can better control the quantity of sprayed powder plastic particles when the plastic spraying device is used, thereby ensuring the glossiness of the surface of a plastic spraying workpiece.
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Description

Technical Field

[0001] The present application relates to the technical field of plastic spray nozzles, and in particular to a plastic spray nozzle capable of achieving high gloss. Background Art

[0002] The glossiness of the surface of the spray-coated workpiece is related to the uniformity of the spraying and the thickness of the coating sprayed on the workpiece surface; differences in spraying rate will lead to uneven color on the surface of the spray-coated coating, which is prone to orange peel-like unevenness and affects the glossiness of the coating surface; too thick a coating will lead to a rough coating surface, and too thin a coating will make the coating too fragile, both of which affect the glossiness of the surface of the spray-coated workpiece.

[0003] The existing spray nozzles have the following defects: for example, the powder feed amount cannot be adjusted, and the speed of spraying is adjusted by simply relying on the air intake valve to adjust the air pressure. As a result, the air pressure is sufficient but the powder is insufficient, and the sprayed powder is discrete and the powder amount is large; or the air pressure is insufficient and the powder amount is too much, and the powder is concentrated, making it impossible to control the spray thickness. Therefore, the utility model provides a spray nozzle that can achieve high gloss. Summary of the invention

[0004] The purpose of the present application is to provide a spray nozzle that can achieve high gloss, which solves the problem that the existing spray nozzle cannot adjust the powder feed amount, and simply relies on the air intake valve to adjust the air pressure to adjust the speed of spraying, resulting in sufficient air pressure but insufficient powder, and the sprayed powder is discrete and the powder amount is large; or insufficient air pressure and excessive powder amount, resulting in powder concentration and the inability to control the spray thickness.

[0005] In order to achieve the above objectives, the technical solution adopted in this application is:

[0006] A spray head capable of achieving high gloss, comprising:

[0007] A nozzle housing, one end of which is an opening;

[0008] A conical cup, wherein the conical cup is fixedly mounted on the inner side of the nozzle housing, and the large mouth end of the conical cup is close to the port of the nozzle housing. The conical cup divides the interior of the nozzle housing into a first area and a second area. The first area is directly connected to the port of the nozzle housing. The conical cup is provided with mesh holes.

[0009] A gas inlet pipe is fixedly connected to the side of the nozzle housing, the gas inlet pipe is communicated with the second area, and an air inlet valve is installed on the gas inlet pipe;

[0010] A feed interface is fixedly connected to the side of the nozzle shell, a conical guide is arranged on the inner side of the feed interface, the central opening of the conical guide is connected to the narrow end of the conical cup by a flexible pipe, a plurality of conical sheets are fixedly connected to the inner side of the feed interface and above the conical guide, the plurality of conical sheets form a cone, a gap is arranged between two adjacent conical sheets, a feed barrel is threadedly mounted at the feed interface, a protrusion is fixedly connected to the end of the feed barrel.

[0011] Further preferably, a wide mask component is fixedly mounted on the open end of the nozzle housing.

[0012] As another preference, the back of the nozzle housing is fixedly connected to a mounting seat via a screw assembly, and one end of the mounting seat away from the nozzle housing is fixedly connected to a mounting flange.

[0013] Further preferably, the screw assembly includes a screw and a nut, one end of the screw is fixedly connected to the nozzle housing, a mounting hole is provided on the mounting seat, and the screw passes through the mounting hole and is threadedly connected to the nut.

[0014] Further preferably, a secondary interface is provided on the top of the feed cylinder, and the secondary interface is connected to a powder pumping system.

[0015] Further preferably, the conical cup includes an integrally formed cone portion and a flange portion, the flange portion is located at a large mouth end of the cone portion, a first hole is formed on a side surface of the cone portion, and a second hole is formed on an end portion of the flange portion.

[0016] Further preferably, a plurality of arc-shaped splicing blocks are arranged on the inner side of the nozzle housing, the plurality of arc-shaped splicing blocks form a ring, and the flange portion is clamped on the inner side of the ring formed by the plurality of arc-shaped splicing blocks.

[0017] Preferably, a detachable rear cover is provided at the rear end of the nozzle housing.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] (1) The utility model designs a conical cup so that it is directly connected to the feed interface (conical guide on the feed interface) through a flexible pipe, and designs a conical structure composed of multiple conical pieces that can adjust the opening size. When using it, the user can better control the amount of sprayed powder plastic particles, thereby ensuring the glossiness of the surface of the sprayed workpiece;

[0020] (2) The utility model designs a conical cup, wherein the conical cup and the inner side of the nozzle shell form a second area, and the gas inlet pipe is connected to the second area, so that the gas entering the nozzle shell is accumulated in the second area, and then flows through the mesh holes opened on the conical cup and mixes with the powdered plastic particles directly entering the inner side of the conical cup. Under the action of the high-speed airflow, the powdered plastic particles are sprayed out more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of the spray nozzle capable of achieving high gloss;

[0022] Figure 2 The figure is a front view of the spray nozzle capable of achieving high gloss;

[0023] Figure 3 A top view of the spray nozzle capable of achieving high gloss;

[0024] Figure 4 for Figure 3 Section view of the section line at AA;

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0026] In the figure: 1. mounting seat; 2. mounting flange; 3. nozzle housing; 4. wide mask fitting; 5. gas inlet pipe; 6. inlet valve; 7. feed barrel; 7c, auxiliary interface; 8. screw assembly; 9. arc-shaped splicing block; 10. conical cup; 101. cone; 102. flange; 11. flexible pipe; 12. feed interface; 13. conical sheet; 14. gap; 15. conical guide; 16. protrusion. DETAILED DESCRIPTION

[0027] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of the present application, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present application.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0030] The terms "including" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0031] like Figure 1-Figure 5 The spray head capable of achieving high gloss includes: a spray head housing 3 , a conical cup 10 , a gas inlet pipe 5 and a feed cylinder 7 .

[0032] Among them, one end of the nozzle shell 3 is open, which serves as the spray port for the dispersed powder plastic particles. The conical cup 10 is fixedly installed on the inner side of the nozzle shell 3, and the large mouth end of the conical cup 10 is close to the port of the nozzle shell 3, that is, the powder plastic particles are sprayed out from the large mouth end of the conical cup 10, and then sprayed out from the port of the nozzle shell 3. The conical cup 10 divides the interior of the nozzle shell 3 into a first area and a second area. The first area is directly connected to the port of the nozzle shell 3. The conical cup 10 is provided with a mesh so that the high-pressure airflow inside the second area can flow to the first area through the mesh. The side of the nozzle shell 3 is fixedly connected with a gas inlet pipe 5, and the gas inlet pipe 5 is connected with the second area. The gas inlet pipe 5 is installed with an air intake valve 6. When in use, the pump gas interface is connected to the gas inlet pipe 5, and the cross-sectional size of the gas inlet pipe 5 is adjusted by the air intake valve 6 to achieve controllable air intake. The side of the nozzle shell 3 is fixedly connected with a feed interface 12. The feed interface 12 A conical guide 15 is provided on the inner side of the conical guide 15, and the central opening of the conical guide 15 is connected to the narrow end of the conical cup 10 through a flexible pipe 11. A plurality of conical pieces 13 are fixedly connected to the inner side of the feed interface 12 and located above the conical guide 15. The plurality of conical pieces 13 form a cone, and a gap 14 is provided between two adjacent conical pieces 13. A feed barrel 7 is threadedly installed at the feed interface 12, and a protrusion 16 is fixedly connected to the end of the feed barrel 7. When the feed barrel 7 is threadedly connected The protrusion 16 is against the inner side of the multiple conical pieces 13. According to actual needs, the depth of the feed cylinder 7 connected to the feed interface 12 is adjusted so that the protrusion 16 pushes the conical piece 13, and the conical piece 13 is deformed, thereby adjusting the size of the conical ports and gaps 14 formed by the multiple conical pieces 13. The size of the conical ports and gaps 14 formed by the multiple conical pieces 13 is the size of the cross-sectional area of ​​the powder flowing downward from the feed cylinder 7, thereby being able to control the ejection amount of the powder plastic shell.

[0033] When in use, connect the pump air interface to the gas inlet pipe 5, store powdered plastic particles in the feed cylinder 7, and then adjust the air inlet valve 6 on the gas inlet pipe 5 to control the air intake volume. Rotate and adjust the feed cylinder 7 so that the protrusion 16 rests against the inner side of the multiple conical pieces 13, thereby adjusting the size of the conical ports and gaps 14 formed by the multiple conical pieces 13, so as to better control the amount of sprayed plastic powder, achieve more uniform spraying of powdered plastic particles, and ensure the glossiness of the surface of the sprayed workpiece.

[0034] In one embodiment, a wide mask component 4 is fixedly mounted on the open end of the nozzle housing 3, and the wide mask component 4 plays a certain guiding role to prevent the powder plastic particles from being sprayed outside the workpiece area.

[0035] In one embodiment, the back of the nozzle housing 3 is fixedly connected to the mounting base 1 through a screw assembly 8, and the end of the mounting base 1 away from the nozzle housing 3 is fixedly connected to the mounting flange 2. The mounting flange 2 can be fixed inside the working box by screws or bolts, thereby fixing the nozzle housing 3.

[0036] In one embodiment, the screw assembly 8 includes a screw and a nut. One end of the screw is fixedly connected to the nozzle housing 3. A mounting hole is provided on the mounting seat 1. The screw passes through the mounting hole and is threadedly connected to the nut.

[0037] In one embodiment, a secondary interface 7c is provided on the top of the feed cylinder 7, and the secondary interface 7c is connected to the powder pumping system.

[0038] The powder material pumping system includes a raw material bin, a pump and a pipeline, and can continuously pump powder plastic particles into the feed cylinder 7 to avoid a shortage of materials in the feed cylinder 7 .

[0039] In one embodiment, the conical cup 10 includes an integrally formed cone portion 101 and a flange portion 102. The flange portion 102 is located at the large mouth end of the cone portion 101. A first hole is opened on the side of the cone portion 101, and a second hole is opened at the end of the flange portion 102. Both the first hole and the second hole can be ventilated to make the airflow ejected from the second area to the first area more uniform.

[0040] In one embodiment, a plurality of arc-shaped splicing blocks 9 are provided on the inner side of the nozzle housing 3, and the plurality of arc-shaped splicing blocks 9 form a ring. The flange portion 102 is clamped on the inner side of the ring formed by the plurality of arc-shaped splicing blocks 9. The arc-shaped splicing blocks 9 are installed one by one on the inner side of the nozzle housing 3, and then the conical cup 10 is installed. The ring-shaped member formed by the plurality of arc-shaped splicing blocks 9 is used to fill the gap between the flange portion 102 and the nozzle housing 3.

[0041] In one embodiment, a detachable rear cover is provided at the rear end of the nozzle housing 3 . After the flexible pipe 11 is installed, the rear cover is fixed to the rear end of the nozzle housing 3 and then connected to the mounting base 1 .

[0042] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A spray nozzle capable of achieving high gloss, characterized in that: include: A nozzle housing, one end of which is an opening; A conical cup, wherein the conical cup is fixedly mounted on the inner side of the nozzle housing, and the large mouth end of the conical cup is close to the port of the nozzle housing. The conical cup divides the interior of the nozzle housing into a first area and a second area. The first area is directly connected to the port of the nozzle housing. The conical cup is provided with mesh holes. A gas inlet pipe is fixedly connected to the side of the nozzle housing, the gas inlet pipe is communicated with the second area, and an air inlet valve is installed on the gas inlet pipe; A feed interface is fixedly connected to the side of the nozzle shell, a conical guide is arranged on the inner side of the feed interface, the central opening of the conical guide is connected to the narrow end of the conical cup by a flexible pipe, a plurality of conical sheets are fixedly connected to the inner side of the feed interface and above the conical guide, the plurality of conical sheets form a cone, a gap is arranged between two adjacent conical sheets, a feed barrel is threadedly mounted at the feed interface, a protrusion is fixedly connected to the end of the feed barrel.

2. The high gloss spray nozzle according to claim 1, characterized in that: A wide mask component is fixedly mounted on the open end of the nozzle housing.

3. The high gloss spray nozzle according to claim 1, characterized in that: The back of the nozzle housing is fixedly connected with a mounting seat via a screw assembly, and one end of the mounting seat away from the nozzle housing is fixedly connected with a mounting flange.

4. The high gloss spray nozzle according to claim 3, characterized in that: The screw assembly comprises a screw and a nut. One end of the screw is fixedly connected to the nozzle housing. A mounting hole is provided on the mounting seat. The screw passes through the mounting hole and is threadedly connected to the nut.

5. The high gloss spray nozzle according to claim 1, characterized in that: A secondary interface is provided on the top of the feed cylinder, and the secondary interface is connected to a powder pumping system.

6. The high gloss spray nozzle according to claim 1, characterized in that: The conical cup comprises an integrally formed cone portion and a flange portion, wherein the flange portion is located at the large mouth end of the cone portion, a first hole is formed on the side surface of the cone portion, and a second hole is formed on the end of the flange portion.

7. The high gloss spray nozzle according to claim 6, characterized in that: A plurality of arc-shaped splicing blocks are arranged on the inner side of the nozzle housing, and the plurality of arc-shaped splicing blocks form a ring, and the flange part is clamped on the inner side of the ring formed by the plurality of arc-shaped splicing blocks.

8. The high gloss spray nozzle according to claim 1, characterized in that: A detachable rear cover is arranged at the rear end of the nozzle housing.