Electrostatic powder spraying rotary cup

Abstract

The utility model relates to the technical field of spraying rotary cups, and provides an electrostatic powder spraying rotary cup, which comprises a cup body provided with a feeding cavity and used for being arranged on an electrostatic generation device, the cup body is further provided with a feeding port, and the feeding port is communicated with the feeding cavity; the cover body is rotationally arranged on the cup body; the nozzle is arranged on the cover body, and the nozzle is communicated with the feeding cavity. By means of the technical scheme, the problems that in the prior art, a rotary cup is large in size and inconvenient to use are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying rotary cups, in particular to an electrostatic powder spraying rotary cup. Background Art

[0002] With the continuous improvement of powder coating formula, the precision of spraying equipment, the progress of automatic control technology and the improvement of relevant standard systems, the powder spraying process has gradually matured. Equipment manufacturers and coating suppliers continue to develop powder coatings and supporting spraying systems that are suitable for different materials, different shapes of workpieces and special performance requirements, making the advantages of powder spraying technology in efficiency, environmental protection, coating performance, etc. increasingly prominent.

[0003] However, the existing powder electrostatic spraying bell requires an electrostatic generating device inside the bell, which results in a larger bell size and inconvenience in use. Utility Model Content

[0004] The utility model provides an electrostatic powder spraying bell, which solves the problem that the bell in the related art is large in size and inconvenient to use.

[0005] The technical solution of the utility model is as follows:

[0006] Electrostatic powder spraying cup, including:

[0007] A cup body having a feed cavity, the cup body being used to be arranged on the electrostatic generating device, and the cup body also having a feed port, the feed port being connected to the feed cavity;

[0008] A cover body, rotatably disposed on the cup body;

[0009] A nozzle is arranged on the cover body, and the nozzle is communicated with the feed cavity.

[0010] As a further technical solution, the nozzle comprises:

[0011] A plurality of first nozzles are provided, wherein the plurality of first nozzles are all disposed on the cover body and are arranged in a circumference;

[0012] There are a plurality of second nozzles, each of which is disposed on the cover body and arranged in a circle, and a distance between the first nozzle and the center of the cover body is greater than a distance between the second nozzle and the center of the cover body;

[0013] An adjusting component is arranged on the cover body, and the adjusting component is used to adjust the feed cavity to be connected with the first nozzle or the second nozzle.

[0014] As a further technical solution, the cover body has a mounting cavity, and the adjustment assembly includes:

[0015] A partition plate is arranged in the installation cavity, the partition plate divides the installation cavity into a first installation cavity and a second installation cavity, and the partition plate has a first through hole and a second through hole;

[0016] A mounting seat is arranged on the partition and is located in the first mounting cavity. The mounting seat divides the first mounting cavity into a first discharge cavity and a second discharge cavity. The mounting seat has a first through slot and a second through slot. The first through slot is connected to the first through hole, the second through slot is connected to the second through hole, the first through slot is connected to the first mounting cavity, and the second through slot is connected to the second mounting cavity.

[0017] A slider is slidably arranged on the partition and is located in the second mounting cavity. The slider has an inlet, which is connected to the feed port. After the slider slides, the inlet is connected to the first through hole or the second through hole.

[0018] As a further technical solution, the mounting seat is sealingly arranged between the cover body and the partition plate.

[0019] As a further technical solution, the first through hole and the second through hole are arranged in an arc shape, and the adjustment component further includes:

[0020] The pull rod is hingedly arranged on the partition and is located in the second installation cavity. After the pull rod swings, the slider is slidably arranged on the partition through the pull rod, and the inlet is connected to the first through hole or the second through hole.

[0021] As a further technical solution, the slider has a flow cavity, the inlet is connected to the flow cavity, and further comprises:

[0022] A sealing ball, located in the circulation cavity, the sealing ball being used to abut against the first through hole or the second through hole;

[0023] An elastic member, one end of which is arranged on the sealing ball and the other end of which is arranged in the inlet, is used to provide a force for the sealing ball to abut against the first through hole or the second through hole.

[0024] As a further technical solution, it also includes:

[0025] A knob is arranged on the pull rod, and the knob is used to drive the pull rod to swing.

[0026] The working principle and beneficial effects of the utility model are:

[0027] The utility model aims to solve the problem that the existing rotary cup is large in size and inconvenient to use due to the built-in electrostatic generator, while maintaining efficient powder atomization performance and excellent coating effect. The cup body is made of high-strength lightweight alloy material, has good wear resistance and temperature resistance, and ensures stable working state under high-speed rotation and high temperature environment. The outer wall of the cup body is smooth, which is easy to clean and maintain. A special feeding cavity is provided in the cup body, which is designed as a tapered spiral channel, which can effectively guide the powder coating to flow along the axial direction of the cup body, and realize the preliminary atomization of the powder under the action of centrifugal force. A feed port with a sealed structure is provided on the top of the cup body, which is connected to the external powder supply system through a hose or a hard pipe to ensure that the powder coating enters the feed cavity smoothly. An adjustable flow control valve is provided at the feed port, which can accurately adjust the powder feed amount according to the spraying requirements. Abandoning the traditional design of the built-in electrostatic generator of the rotary cup, instead adopting an independent external electrostatic generator. The electrostatic generator is connected to the rotary cup through a special interface, which can not only reduce the volume and weight of the rotary cup itself, but also facilitate the separate maintenance and upgrade of the electrostatic generator. The bottom of the cup body is provided with a charge conduction component that is connected to the electrostatic generator, including a contact ring made of conductive material and an insulating protective layer. The contact ring is in close contact with the output end of the electrostatic generator to ensure that the high voltage of static electricity is safely and effectively transmitted to the inside of the cup body. The insulating protective layer prevents static electricity leakage and ensures the safety of operators. The cover body is made of wear-resistant and high-temperature resistant materials, and is connected to the top of the cup body through precision bearings to achieve smooth and low-friction rotation. A sealing ring is provided on the cover body to ensure airtightness with the cup body and prevent powder leakage. The nozzle is embedded in the center of the cover body and connected to the feed cavity. The inside of the nozzle adopts a specially designed vortex groove structure, so that the powder entering from the feed cavity is further refined and atomized under the action of high-speed airflow. A replaceable nozzle cap is provided at the front end of the nozzle. Nozzle caps of different apertures and shapes can be selected according to the specific needs of the spraying workpiece to achieve the best atomization effect and powder utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0029] Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 This is a schematic diagram of the first structure of the cover body of the utility model;

[0031] Figure 3 This is a schematic diagram of the second structure of the cover body of the utility model;

[0032] Figure 4 This is a schematic diagram of the third structure of the cover body of the utility model;

[0033] Figure 5It is a schematic diagram of the cross-sectional structure of the cover body of the utility model.

[0034] In the figure: 1. cup body, 2. feed cavity, 3. feed port, 4. cover body, 5. nozzle, 6. first nozzle, 7. second nozzle, 8. adjustment component, 9. installation cavity, 10. partition, 11. first installation cavity, 12. second installation cavity, 13. first through hole, 14. second through hole, 15. mounting seat, 16. first discharge cavity, 17. second discharge cavity, 18. first through groove, 19. second through groove, 20. slider, 21. inlet, 22. pull rod, 23. sealing ball, 24. elastic member, 25. knob, 26. circulation cavity. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0036] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0037] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] Example

[0040] Reference Figure 1~Figure 5 , is an embodiment of the utility model, and proposes

[0041] The electrostatic powder spraying rotary cup comprises: a cup body 1 having a feed cavity 2, the cup body 1 is used to be set on an electrostatic generating device, the cup body 1 also has a feed port 3, the feed port 3 is connected to the feed cavity 2; a cover body 4 rotatably arranged on the cup body 1; a nozzle 5 is arranged on the cover body 4, and the nozzle 5 is connected to the feed cavity 2.

[0042] The present embodiment provides an electrostatic powder spraying rotary cup, which aims to solve the problem that the existing rotary cup is large in size and inconvenient to use due to the built-in electrostatic generator, while maintaining efficient powder atomization performance and excellent coating effect. The cup body 1 is made of high-strength lightweight alloy material, has good wear resistance and temperature resistance, and ensures stable working state under high-speed rotation and high temperature environment. The outer wall of the cup body 1 is smooth, which is easy to clean and maintain. A special feeding cavity 2 is provided in the cup body 1, which is designed as a tapered spiral channel, which can effectively guide the powder coating to flow along the axial direction of the cup body 1, and realize the preliminary atomization of the powder under the action of centrifugal force. A feed port 3 with a sealing structure is provided at the top of the cup body 1, which is connected to the external powder supply system through a hose or a hard pipe to ensure that the powder coating enters the feed cavity 2 smoothly. An adjustable flow control valve is provided at the feed port 3, which can accurately adjust the powder feed amount according to the spraying requirements. Abandon the traditional design of the built-in electrostatic generator of the rotary cup, and use an independent external electrostatic generator instead. The electrostatic generator is connected to the bell through a dedicated interface, which can not only reduce the volume and weight of the bell itself, but also facilitate the separate maintenance and upgrade of the electrostatic generator. A charge conduction component that is connected to the electrostatic generator is provided at the bottom of the cup body 1, including a contact ring and an insulating protective layer made of conductive material. The contact ring is in close contact with the output end of the electrostatic generator to ensure that the electrostatic high voltage is safely and effectively transmitted to the inside of the cup body 1. The insulating protective layer prevents static electricity leakage and ensures the safety of the operator. The cover body 4 is made of wear-resistant and high-temperature resistant materials and is connected to the top of the cup body 1 through a precision bearing to achieve smooth and low-friction rotation. A sealing ring is provided on the cover body 4 to ensure airtightness with the cup body 1 to prevent powder leakage. The nozzle 5 is embedded in the center of the cover body 4 and is connected to the feed cavity 2. The inside of the nozzle 5 adopts a specially designed vortex groove structure, so that the powder entering from the feed cavity 2 is further refined and atomized under the action of high-speed airflow. A replaceable nozzle 5 cap is provided at the front end of the nozzle 5. Nozzle 5 caps with different apertures and shapes can be selected according to the specific needs of the spraying workpiece to achieve the best atomization effect and powder utilization.

[0043] Furthermore, the nozzle 5 includes: a plurality of first nozzles 6, which are all arranged on the cover body 4 and are arranged in a circle; a plurality of second nozzles 7, which are all arranged on the cover body 4 and are arranged in a circle; an adjusting component 8 arranged on the cover body 4, which is used to adjust the connection between the feed cavity 2 and the first nozzle 6 or the second nozzle 7.

[0044] In this embodiment, the structure of the nozzle 5 is further optimized, a dual-nozzle design of a first nozzle 6 and a second nozzle 7 is introduced, and an adjustment component 8 is added to realize flexible switching between the feed cavity 2 and different nozzles to adapt to a wider range of spraying application scenarios. A plurality of first nozzles 6 are arranged on the cover body 4, and these nozzles are evenly distributed along the circumference. Each first nozzle 6 adopts an optimized vortex groove structure, which is suitable for efficient atomization spraying of large-area, flat-surface workpieces to ensure uniform coverage of powder and consistent coating thickness. Similarly, a plurality of second nozzles 7 are arranged on the cover body 4 in a circumferential arrangement with the first nozzle 6. The internal structure of the second nozzle 7 is different from that of the first nozzle 6. Its design focuses more on generating concentrated and directional powder flow, which is suitable for precise spraying of local areas such as complex shapes, edge parts, and slender gaps to ensure coating integrity and detail processing effects. A set of adjustment components 8 is installed in the cover body 4 to switch gears.

[0045] Further, the cover body 4 has an installation cavity 9, and the adjustment component 8 includes: a partition 10 arranged in the installation cavity 9, the partition 10 divides the installation cavity 9 into a first installation cavity 11 and a second installation cavity 12, and the partition 10 has a first through hole 13 and a second through hole 14; a mounting seat 15 arranged on the partition 10 and located in the first installation cavity 11, and the mounting seat 15 divides the first installation cavity 11 into a first discharge cavity 16 and a second discharge cavity 17, and the mounting seat 15 is sealed and arranged between the cover body 4 and the partition 10, and the mounting The seat 15 has a first through groove 18 and a second through groove 19, the first through groove 18 is connected to the first through hole 13, the second through groove 19 is connected to the second through hole 14, the first through groove 18 is connected to the first mounting cavity 11, and the second through groove 19 is connected to the second mounting cavity 12; a slider 20 is slidably arranged on the partition 10 and is located in the second mounting cavity 12, the slider 20 has an entrance 21, the entrance 21 is connected to the feed port 3, after the slider 20 slides, the entrance 21 is connected to the first through hole 13 or the second through hole 14.

[0046] In this embodiment, the adjustment component 8 is designed more finely, and the precise control and switching of the flow direction of the powder coating is achieved by adding structures such as the installation cavity 9, the partition 10, the installation seat 15 and the slider 20 in the cover body 4. A mounting cavity 9 is designed in the cover body 4, and its shape and size match the internal space of the cover body 4 to provide an installation space for the adjustment component 8. The partition 10 is arranged in the installation cavity 9, dividing the cavity into a first installation cavity 11 and a second installation cavity 12. The partition 10 is provided with a first through hole 13 and a second through hole 14, which correspond to the communication paths of the first nozzle 6 and the second nozzle 7 respectively. The installation seat 15 is fixed on the partition 10 and is located in the first installation cavity 11, further dividing the first installation cavity 11 into a first discharge cavity 16 and a second discharge cavity 17. A sealing structure is used between the installation seat 15 and the cover body 4 and the partition 10 to ensure the closed transmission of the powder coating in the chamber. The installation seat 15 is provided with a first through groove 18 and a second through groove 19, which are connected to the first through hole 13 and the second through hole 14 respectively. The first through groove 18 is communicated with the first discharge cavity 16, and the second through groove 19 is communicated with the second discharge cavity 17, forming an independent and controllable powder transmission channel from the feed cavity 2 to the first nozzle 6 and the second nozzle 7. The slider 20 is slidably disposed in the second installation cavity 12 of the partition 10, and an inlet 21 is provided thereon, and the inlet 21 is communicated with the bell feed port 3. The slider 20 can slide on the partition 10 so that the inlet 21 is aligned with the first through hole 13 or the second through hole 14, thereby realizing the switching of the flow direction of the powder coating.

[0047] Furthermore, the first through hole 13 and the second through hole 14 are arranged in an arc shape, and the adjustment component 8 also includes: a pull rod 22 hingedly arranged on the partition 10 and located in the second installation cavity 12. After the pull rod 22 swings, it drives the entrance 21 of the slider 20 to connect with the first through hole 13 or the second through hole 14.

[0048] In this embodiment, the arrangement of the first through hole 13 and the second through hole 14 is improved, and a pull rod 22 is introduced to drive the adjustment method of the slider 20, so as to further improve the convenience and stability of the flow direction switching of the powder coating. The first through hole 13 and the second through hole 14 are designed to be arranged in an arc shape and evenly distributed along the circumferential direction of the partition 10. The arc arrangement allows the slider 20 to complete the connection switching with the two through holes within a smaller swing range, reducing the movement amplitude and energy consumption of the driving mechanism, and improving the adjustment speed and accuracy. A pull rod 22 is hingedly provided on the partition 10, and the pull rod 22 is located in the second mounting cavity 12, and one end thereof is connected to the slider 20. The swing angle of the pull rod 22 is proportional to the moving stroke of the slider 20. By controlling the swing of the pull rod 22, the precise positioning of the slider 20 is achieved.

[0049] Furthermore, the slider 20 has a circulation cavity 26, the inlet 21 and the circulation cavity 26 are connected, and also includes: a sealing ball 23 located in the circulation cavity 26, the sealing ball 23 is used to abut the first through hole 13 or the second through hole 14; an elastic member 24, one end of which is arranged on the sealing ball 23, and the other end is arranged in the inlet 21, for providing a force for the sealing ball 23 to abut the first through hole 13 or the second through hole 14.

[0050] In this embodiment, the structural design of the sealing ball 23 and the elastic member 24 is added to enhance the sealing performance of the rotary cup during the switching process of the powder coating flow direction, reduce powder leakage, and improve the spraying efficiency. A sealing ball 23 is arranged in the flow cavity 26 of the slider 20. The sealing ball 23 is made of a material that is wear-resistant, corrosion-resistant and has good elasticity, and can play a sealing role when the inlet 21 is connected to the first through hole 13 or the second through hole 14. One end of the elastic member 24 is fixed to the sealing ball 23, and the other end is fixed to the inner wall of the inlet 21. When the slider 20 drives the inlet 21 to align with the first through hole 13 or the second through hole 14, the elastic member 24, under the action of the preload force, pushes the sealing ball 23 to fit closely to the edge of the through hole to form a sealing surface to prevent the powder coating from leaking during the switching process.

[0051] Furthermore, it also includes: a knob 25 arranged on the pull rod 22, and the knob 25 is used to drive the pull rod 22 to swing.

[0052] In this embodiment, a knob 25 structure is added to provide a manual adjustment option for the electrostatic powder spraying cup, so that the operator can quickly adjust the flow direction of the powder coating when necessary, thereby enhancing the flexibility and practicality of the cup. A knob 25 is provided on the pull rod 22. The knob 25 is located in a position that is easy for the operator to reach, such as the side or top of the cup, for convenient manual operation. The knob 25 adopts an anti-slip design, and the surface is provided with a texture or a concave-convex structure to increase the grip feel and ensure that the knob 25 can be turned stably and accurately during operation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Electrostatic powder spraying cup, characterized in that: include: A cup body (1) having a feed cavity (2), the cup body (1) being used to be arranged on an electrostatic generating device, the cup body (1) also having a feed port (3), the feed port (3) being in communication with the feed cavity (2); A cover body (4) rotatably disposed on the cup body (1); A nozzle (5) is arranged on the cover body (4), and the nozzle (5) is in communication with the feed cavity (2); A plurality of first spray heads (6), each of which is disposed on the cover body (4) and arranged in a circumferential manner; There are a plurality of second nozzles (7), each of which is disposed on the cover body (4), and the plurality of second nozzles (7) are arranged in a circumferential manner, and the distance between the first nozzle (6) and the center of the cover body (4) is greater than the distance between the second nozzle (7) and the center of the cover body (4); An adjusting component (8) is arranged on the cover body (4), and the adjusting component (8) is used to adjust the communication between the feed cavity (2) and the first nozzle (6) or the second nozzle (7).

2. The electrostatic powder spraying bell according to claim 1, characterized in that: The cover body (4) has a mounting cavity (9), and the adjustment assembly (8) comprises: A partition plate (10) is arranged in the installation cavity (9), the partition plate (10) divides the installation cavity (9) into a first installation cavity (11) and a second installation cavity (12), and the partition plate (10) has a first through hole (13) and a second through hole (14); A mounting seat (15) is arranged on the partition (10) and is located in the first mounting cavity (11); the mounting seat (15) divides the first mounting cavity (11) into a first discharge cavity (16) and a second discharge cavity (17); the mounting seat (15) has a first through groove (18) and a second through groove (19); the first through groove (18) is connected to the first through hole (13); the second through groove (19) is connected to the second through hole (14); the first through groove (18) is connected to the first mounting cavity (11); and the second through groove (19) is connected to the second mounting cavity (12); A slider (20) is slidably disposed on the partition (10) and is located in the second mounting cavity (12); the slider (20) has an inlet (21), and the inlet (21) is connected to the feed port (3); after the slider (20) slides, the inlet (21) is connected to the first through hole (13) or the second through hole (14).

3. The electrostatic powder spraying bell according to claim 2, characterized in that: The mounting seat (15) is sealingly arranged between the cover body (4) and the partition plate (10).

4. The electrostatic powder spraying bell according to claim 2, characterized in that: The first through hole (13) and the second through hole (14) are arranged in an arc shape, and the adjustment component (8) further comprises: A pull rod (22) is hingedly arranged on the partition (10) and is located in the second installation cavity (12); after the pull rod (22) swings, the slider (20) is slidably arranged on the partition (10) through the pull rod (22), and the inlet (21) is connected to the first through hole (13) or the second through hole (14).

5. The electrostatic powder spraying bell according to claim 2, characterized in that: The slider (20) has a circulation cavity (26), the inlet (21) is in communication with the circulation cavity (26), and further comprises: A sealing ball (23) located in the circulation cavity (26), the sealing ball (23) being used to abut against the first through hole (13) or the second through hole (14); An elastic member (24) has one end disposed on the sealing ball (23) and the other end disposed in the inlet (21), and is used to provide a force for the sealing ball (23) to abut against the first through hole (13) or the second through hole (14).

6. The electrostatic powder spraying bell according to claim 4, characterized in that: Also includes: A knob (25) is arranged on the pull rod (22), and the knob (25) is used to drive the pull rod (22) to swing.

Images