Electrostatic spraying gun with nozzle capable of being rapidly replaced

Abstract

The utility model relates to the technical field of spraying guns, in particular to an electrostatic spraying gun with a nozzle capable of being replaced quickly. According to the technical scheme, the electrostatic spraying gun comprises an electrostatic spraying gun body and a high-voltage module machine body, and further comprises a bayonet type nozzle arranged at the front end of the electrostatic spraying gun body, the high-voltage module machine body is fixedly installed on the inner side of the rear end of the electrostatic spraying gun body, and a power supply connecting wire is arranged at the lower end of the electrostatic spraying gun body; a paint connecting pipe is arranged on the position, located on the electrostatic spraying gun body, of the outer side of the power source connecting wire, and a mounting box is fixedly mounted at the upper end of the electrostatic spraying gun body. According to the paint spraying protection device, protection during paint spraying operation is achieved, rebounded paint can be automatically adsorbed and collected, the smoothness and attractiveness of paint spraying products are improved, waste of the paint is avoided, and certain cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of spray gun technology, and in particular to an electrostatic spray gun with a quick-change nozzle. Background Technology

[0002] Paint is a chemical mixture that can firmly cover the surface of an object, serving protective, decorative, marking, and other special purposes. When spraying paint, paint spraying equipment is needed, and personnel use handheld electrostatic spray guns to apply the paint, making it convenient for painting external aluminum profiles.

[0003] To avoid nozzle damage or clogging affecting the normal use of electrostatic spray guns, bayonet designs are often used to enable quick nozzle replacement. However, when using electrostatic spray guns to spray some hard and smooth objects, such as metal sheets, if the impact speed of the paint particles is too high, some paint will bounce back. The bounced paint may form small particles or spots on the already sprayed surface, affecting the smoothness and aesthetics of the product, while also wasting paint and increasing costs. Therefore, this application proposes an electrostatic spray gun with a quick-replacement nozzle. Summary of the Invention

[0004] The purpose of this invention is to address the problem in the background technology that rebounding paint may form small particles or spots on the already sprayed surface, affecting the smoothness and aesthetics of the product, while also wasting paint and increasing costs. The invention proposes an electrostatic spray gun with a quickly replaceable nozzle.

[0005] The technical solution of this utility model: an electrostatic spray gun with a quickly replaceable nozzle, comprising an electrostatic spray gun body and a high-voltage module body, and further comprising:

[0006] A bayonet-type nozzle is set at the front end of the electrostatic spray gun body. The high-voltage module body is fixedly installed on the inner rear end of the electrostatic spray gun body. A power connection line is set at the lower end of the electrostatic spray gun body. A paint connection pipe is set on the outer side of the power connection line on the electrostatic spray gun body. An installation box is fixedly installed at the upper end of the electrostatic spray gun body.

[0007] A protective collection device is installed inside the mounting box for the protection and recovery of paint rebound during spraying.

[0008] Optionally, an anti-slip pad is provided at the handle of the electrostatic spray gun body, and a push switch is provided above the anti-slip pad on the electrostatic spray gun body.

[0009] Optionally, the nozzle is covered with a cap cylinder, and a cutting plate is provided on the inner side of the bottom end of the cap cylinder.

[0010] Optionally, the protective collection device includes a slid groove disposed in the mounting box, a slider slidably mounted in the slid groove, a support rod fixedly connected to the slider, one end of the support rod located outside the mounting box and connected to a baffle, a through groove matching the size of the nozzle being opened on the baffle, a protective frame being fixedly mounted on the outer wall of the baffle, and magnets being disposed on both sides of the lower end of the baffle.

[0011] Optionally, a lead screw threadedly connected to the slider is rotatably installed inside the slide groove, and a micro motor is fixedly installed on one side of the slide groove, with the output shaft of the micro motor fixedly connected to the lead screw.

[0012] Optionally, a fixing groove is fixedly installed on the top of the protective frame, and a rotating rod is rotatably installed on one side of the inner wall of the fixing groove. One end of the rotating rod passes through the outer wall of the fixing groove and is fixedly connected to a rocker arm. A sleeve is fitted on the rotating rod, and a PVC film is wound on the sleeve. A rectangular groove is provided at the connection between the fixing groove and the protective frame to allow the PVC film to pass through.

[0013] Optionally, a through slot is provided on one side of the mounting box for the support rod to move through.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] This invention incorporates a protective frame, baffle, slider, support rod, magnet, and PVC film. The slider moves the support rod, allowing for easy adjustment of the protective frame and baffle's position relative to the nozzle, thus improving the protective effect. The magnet secures the PVC film, enabling it to absorb and collect paint that bounces off during spraying, preventing paint waste, saving costs, and improving the smoothness and aesthetics of the painted product.

[0016] Furthermore, by setting up a cutting plate, a fixing groove, a rotating rod, and a sleeve, shaking the rocker arm causes the rotating rod to drive the sleeve to rotate, which allows the wound PVC film to be laid flat on the surface of the baffle along the rectangular groove. Combined with the cutting plate cutting, the replacement of PVC film can be easily completed. It is very convenient to use and improves work efficiency.

[0017] This invention provides protection during spray painting operations and allows for the automatic absorption and collection of rebounding paint, improving the smoothness and aesthetics of painted products, avoiding paint waste, and saving certain costs. Attached Figure Description

[0018] Figure 1 A structural schematic diagram of one embodiment of this utility model is provided. Figure 1 ;

[0019] Figure 2 A structural schematic diagram of one embodiment of this utility model is provided. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the segment connection structure;

[0021] Figure 4 This is a schematic diagram of the support rod connection structure;

[0022] Figure 5 This is a schematic diagram of the roll connection structure.

[0023] Reference numerals: 1. Electrostatic spray gun body; 2. High-voltage module body; 3. Nozzle; 4. Paint connecting pipe; 5. Power connection cable; 6. Mounting box; 7. Push switch; 8. Anti-slip pad; 9. Cover sleeve; 10. Cut-off piece; 11. Fixing groove; 12. Support rod; 13. Baffle; 14. Through groove; 15. Rotating rod; 16. Rocker arm; 17. Protective frame; 18. Slide groove; 19. Slider; 20. Micro motor; 21. Lead screw; 22. Magnet; 23. Coil; 24. PVC film; 25. Rectangular groove. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Example

[0031] like Figures 1-3 As shown, the present invention proposes an electrostatic spray gun with a quick-change nozzle, including an electrostatic spray gun body 1 and a high-voltage module body 2, and also includes a bayonet-type nozzle 3 disposed at the front end of the electrostatic spray gun body 1. The high-voltage module body 2 is fixedly installed on the inner rear end of the electrostatic spray gun body 1. The bayonet-type nozzle 3 has a specific shaped slot, and the electrostatic spray gun body 1 has a corresponding locking block. During installation, the slot of the nozzle 3 is aligned with the locking block, and then rotated at a certain angle to securely install the nozzle 3 on the electrostatic spray gun body 1, which is relatively convenient and quick.

[0032] In addition, a power connection cable 5 is provided at the lower end of the electrostatic spray gun body 1, and a paint connection tube 4 is provided on the outside of the power connection cable 5 on the electrostatic spray gun body 1. An installation box 6 is fixedly installed at the upper end of the electrostatic spray gun body 1. An anti-slip pad 8 is provided at the handle of the electrostatic spray gun body 1, and a push switch 7 is provided above the anti-slip pad 8 on the electrostatic spray gun body 1. When in use, the electrostatic spray gun body 1 is electrically connected to the external painting equipment through the power connection cable 5 and connected to the external paint pipeline through the paint connection tube 4. That is, when the push switch 7 is pressed, it is convenient to carry out the painting operation. The anti-slip pad 8 can prevent the person from slipping when holding it.

[0033] like Figures 1-5As shown, the device also includes a protective collection device, which is installed in the mounting box 6 for the protection and recovery of paint rebound during spraying. The protective collection device includes a chute 18 installed in the mounting box 6, a slider 19 is slidably installed in the chute 18, and a support rod 12 is fixedly connected to the slider 19. A through slot 14 is opened on one side of the mounting box 6 for the support rod 12 to move through. The sliding of the slider 19 can drive the support rod 12 to move.

[0034] Furthermore, one end of the support rod 12 is located on the outside of the mounting box 6 and connected to a baffle 13. The baffle 13 has a through groove 14 that matches the size of the nozzle 3. A protective frame 17 is fixedly installed on the outer wall of the baffle 13. The protective frame 17, together with the baffle 13, forms a protective cover over the nozzle 3 to prevent paint from rebounding during spraying and to prevent the rebounded paint from scattering on the ground, walls and equipment in the work area. A lead screw 21, which is threadedly connected to the slider 19, is rotatably installed in the slide groove 18. A micro motor 20 is fixedly installed on one side of the slide groove 18. The output shaft of the micro motor 20 is fixedly connected to the lead screw 21. By starting the micro motor 20 in forward and reverse directions, the lead screw 21 is rotated. The slider 19 can drive the baffle 13 to move forward or backward for adjustment, which facilitates the improvement of the protective effect of the protective frame 17.

[0035] Furthermore, a fixing groove 11 is fixedly installed on the top of the protective frame 17. A rotating rod 15 is rotatably installed on one side of the inner wall of the fixing groove 11. One end of the rotating rod 15 passes through the outer wall of the fixing groove 11 and is fixedly connected to a rocker arm 16. A sleeve 23 is sleeved on the rotating rod 15, and a PVC film 24 is wound on the sleeve 23. A rectangular groove 25 is opened at the connection between the fixing groove 11 and the protective frame 17 to allow the PVC film 24 to pass through. Because the PVC film 24 has a certain roughness and chemically active groups on its surface, it can better adsorb the paint. Moreover, the surface of the PVC film 24 is electrostatically treated to improve the adsorption effect on the rebound paint particles. Shaking the rocker arm 16 makes the sleeve 23 rotate together, causing the wound PVC film 24 to unfold and move downward along the rectangular groove 25, covering the baffle 13, so that the rebound paint is collected and recycled by the PVC film 24, saving certain costs.

[0036] It is worth noting that magnets 22 are provided on both sides of the lower end of the baffle 13. When the PVC film 24 is laid flat on the surface of the baffle 13, it is fixed with the magnets 22 opposite to the external magnets to prevent displacement or shaking from affecting the collection effect. The nozzle 3 is covered with a cover cylinder 9. A cutting plate 10 is provided on the inner side of the bottom end of the cover cylinder 9. Before unfolding the PVC film 24, the baffle 13 is moved and adjusted to the front of the nozzle 3. After unfolding the PVC film 24, the cutting plate 10 is used to cut a circular groove for the nozzle 3 to pass through, so as to avoid affecting the normal painting of the nozzle 3.

[0037] The working principle of this embodiment is as follows: Before spray painting, the micro motor 20 is started, causing the lead screw 21 to rotate. The slider 19 drives the support rod 12 to move forward along the direction of the slide groove 18, so that the baffle 13 moves in front of the nozzle 3. At this time, the rotating rod 15 is shaken, causing the rotating rod 15 to rotate and drive the sleeve 23 to rotate, so that the PVC film 24 can be laid flat along the rectangular groove 25 and laid flat on the surface of the baffle 13. With the attraction of the magnet 22, the flat PVC film 24 is fixed, avoiding displacement or shaking that would affect the collection effect. Then, the cutting plate 10 is used to cut a circular groove so that the nozzle 3 can leak out and enter the protective frame 17. During spray painting, the slider 19 is used to adjust the position of the protective frame 17 and the baffle 13 so that they can cover the nozzle 3, so that the paint that rebounds from the spray painting is attached to the PVC film 24 for collection, avoiding paint waste and saving costs.

[0038] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An electrostatic spray gun with a quick-change nozzle, comprising an electrostatic spray gun body (1) and a high-voltage module body (2), characterized in that, Also includes: A bayonet-type nozzle (3) is provided at the front end of the electrostatic spray gun body (1). The high-voltage module body (2) is fixedly installed on the inner side of the rear end of the electrostatic spray gun body (1). A power connection line (5) is provided at the lower end of the electrostatic spray gun body (1). A paint connection pipe (4) is provided on the outer side of the power connection line (5) on the electrostatic spray gun body (1). An installation box (6) is fixedly installed at the upper end of the electrostatic spray gun body (1). A protective collection device is installed in the mounting box (6) for the protection and recovery of paint rebound during spraying.

2. The electrostatic spray gun with a quick-change nozzle according to claim 1, characterized in that, The handle of the electrostatic spray gun body (1) is provided with an anti-slip pad (8), and a push switch (7) is provided above the anti-slip pad (8) on the electrostatic spray gun body (1).

3. The electrostatic spray gun with a quick-change nozzle according to claim 1, characterized in that, The nozzle (3) is covered with a cover cylinder (9), and a cutting piece (10) is provided on the inner side of the bottom end of the cover cylinder (9).

4. The electrostatic spray gun with a quick-change nozzle according to claim 1, characterized in that, The protective collection device includes a slid groove (18) set in the mounting box (6), a slider (19) is slidably installed in the slid groove (18), a support rod (12) is fixedly connected to the slider (19), one end of the support rod (12) is located outside the mounting box (6) and connected to a baffle (13), a through groove (14) matching the size of the nozzle (3) is opened on the baffle (13), a protective frame (17) is fixedly installed on the outer wall of the baffle (13), and magnets (22) are provided on both sides of the lower end of the baffle (13).

5. The electrostatic spray gun with a quick-change nozzle according to claim 4, characterized in that, A lead screw (21) that is threadedly connected to a slider (19) is rotatably installed in the groove (18). A micro motor (20) is fixedly installed on one side of the groove (18). The output shaft of the micro motor (20) is fixedly connected to the lead screw (21).

6. An electrostatic spray gun with a quick-change nozzle according to claim 4, characterized in that, A fixing groove (11) is fixedly installed on the top of the protective frame (17). A rotating rod (15) is rotatably installed on one side of the inner wall of the fixing groove (11). One end of the rotating rod (15) passes through the outer wall of the fixing groove (11) and is fixedly connected to a rocker arm (16). A sleeve (23) is sleeved on the rotating rod (15). A PVC film (24) is wrapped on the sleeve (23). A rectangular groove (25) is provided at the connection between the fixing groove (11) and the protective frame (17) to allow the PVC film (24) to pass through.

7. An electrostatic spray gun with a quickly replaceable nozzle according to claim 4, characterized in that, The mounting box (6) has a through slot (14) on one side for the support rod (12) to move through.

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