Environment-friendly handheld light pipe end ribbon spraying device

Abstract

The utility model discloses an environmental protection type handheld light pipe end color band spraying device, including opening paint spraying mould, it includes the soft elastic stainless steel opening mould for spraying color band, wear -resisting nail, support, organ protective cloth, paint return pipe and support seat. Support seat and support adopt hinge structure connection, and support and soft elastic stainless steel opening mould also adopt hinge structure connection, and the organ protective cloth of surrounding use of support is wrapped up, and a plurality of wear -resisting nails are fixed in mould bottom, make the constant distance of mould and steel pipe, paint spraying device, it includes the compressed air inlet pipe of providing source power, the pressure regulating valve of adjusting air pressure, trigger, gas volume regulating valve, switch valve, nozzle, paint supply pipe, paint storage jar and return paint import. Nozzle and support seat are connected. The utility model solves the problem existing in the oil jacket pipe light pipe end color band spraying in the prior art, improves pipe end color band brush coating work efficiency and work quality.

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, and in particular to an environmentally friendly handheld light tube end color ribbon spraying device. Background Technology

[0002] In oil jacket steel pipe manufacturing enterprises, due to standards and customer requirements, it is necessary to spray or brush the pipe ends of the finished pipes with color strips corresponding to the steel grade. Some large enterprises also require the pipe ends of the finished pipes to be brushed with color strips after heat treatment or rolling of the finished pipes, in order to facilitate the next threading process and to distinguish them from the finished products.

[0003] Since the ribbon coating at the tube ends of fluorescent tubes is an intermediate process, using dedicated ribbon coating equipment would be costly and require repositioning and reorganizing existing equipment on the production floor, resulting in significant cost waste. Furthermore, this would leave the equipment idle during the production of other fluorescent tubes not intended for external sale or products that do not require ribbon coating at the tube ends. Therefore, most companies use manual brushing to coat the ribbon at the tube ends of fluorescent tubes.

[0004] The following problems exist with manual application of paint ribbon: ① Uneven application, with inconsistent width and uniformity of the ribbon, affecting the appearance of the fluorescent tubes; ② The paint applied manually is thick and does not dry easily, and when the steel pipes are rolled downwards side by side, they rub against each other, resulting in excessive paint on the ends of the pipes and the loss of the applied ribbon effect; ③ Manual application requires holding the steel pipes, posing a significant safety hazard; ④ Excess paint drips onto the ground, causing environmental pollution; ⑤ Uneven application and dripping paint result in waste of materials. Utility Model Content

[0005] The purpose of this utility model is to provide an environmentally friendly handheld tube end color ribbon spraying device, which aims to solve the problems existing in the prior art of tube end color ribbon spraying for oil casing tubes, so as to improve the efficiency and quality of tube end color ribbon brushing.

[0006] To achieve the above objectives, this application provides the following technical solution: an environmentally friendly handheld ribbon spraying device for light tubes, comprising an open-end spraying mold, which includes a flexible stainless steel open-end mold for spraying ribbon, wear-resistant nails, a bracket, a gusseted protective cloth, a paint return tube, and a bracket base. The bracket base is hinged to the bracket, and the bracket is hinged to the flexible stainless steel open-end mold. The bracket is surrounded by an elastic gusseted protective cloth, and multiple wear-resistant nails are fixed to the bottom of the mold to maintain a constant distance between the mold and the steel tube.

[0007] The painting device includes a compressed air inlet pipe providing power, a pressure regulating valve for adjusting air pressure, a trigger, an air volume regulating valve, a switch valve, a nozzle, a paint supply pipe, a paint storage tank, and a paint return inlet. The nozzle is connected to a support base.

[0008] Preferably, the nozzle and the bracket seat are threadedly detachably connected.

[0009] Preferably, the soft elastic stainless steel opening mold has a rectangular opening, a guide groove is provided around the edge of the rectangular opening, and wear-resistant nails with a spacing of 10mm and a height of 10mm are provided on the soft elastic stainless steel opening mold.

[0010] Preferably, a nozzle is fixedly installed on the paint storage tank, the nozzle is connected to the paint storage tank through a paint supply pipe, and a return paint inlet is connected to one side of the paint storage tank.

[0011] Preferably, a switching valve is installed inside the nozzle, and a trigger for controlling the switching valve is movably connected to the outside of the nozzle.

[0012] Preferably, an air volume regulating valve is fixedly installed at the tail end of the nozzle, and an air inlet pipe is connected to the tail end of the nozzle, with a pressure regulating valve fixedly installed on the air inlet pipe.

[0013] In summary, the technical effects and advantages of this utility model are as follows:

[0014] This utility model discloses an environmentally friendly handheld ribbon spraying device for steel pipes. During the ribbon spraying process, the entire spraying device, except for the paint outlet, is sealed to prevent paint spillage and protect the environment. Compressed air enters the device through the inlet pipe, and the pressure regulating valve adjusts the compressed air pressure to control the flow rate, thereby regulating the spraying volume. Manually pressing the normally closed handle switch releases the pressurized compressed air through the paint supply pipe above the paint tank, which is then sprayed out from the nozzle. Utilizing Bernoulli's principle—the higher the flow velocity, the lower the pressure—the pressure at the bottom of the paint supply pipe is lower than at the top. This pressure difference forces the paint from the storage tank to the top of the supply pipe, where compressed air carries the sprayed paint, atomizing it at the nozzle.

[0015] The bottom of the paint shield features a flexible stainless steel mold with a rectangular opening for spraying atomized paint. Guide channels are positioned around the edge of the rectangular opening to facilitate paint flow into the bottom of the mold. Wear-resistant pins, spaced 10mm apart and 10mm high, are installed at the top and bottom of the stainless steel mold to maintain a distance between the mold and the steel pipe, preventing the mold from rubbing against the painted pipe end. The four corners of the mold are hinged to a support frame and are surrounded by accordion-style protective fabric to prevent paint splatter. A backflow opening at the bottom of the mold connects to a paint return pipe, with the other end connected to an air tank, allowing excess paint to flow back into the air tank. Except for the paint to be applied to the steel pipe, all other paint is sealed and returned to the air tank, preventing environmental pollution. An adjustable right-angle positioning device is installed in the middle of the mold to ensure the correct distance between the mold and the pipe end, guaranteeing a good spraying effect. The flexible stainless steel mold, in conjunction with the hinged support, allows for ribbon painting of steel pipes with different outer diameters. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the painting device structure of an environmentally friendly handheld light tube end color ribbon spraying device in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the support structure of an environmentally friendly handheld light tube end color ribbon spraying device in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the mold unfolding structure of an environmentally friendly handheld light tube end color ribbon spraying device according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the support structure of an environmentally friendly handheld light tube end color ribbon spraying device in an embodiment of this application.

[0021] In the diagram: 1. Soft and elastic stainless steel open mold; 2. Wear-resistant nail; 3. Bracket; 4. Bellows protective cloth; 5. Bracket base; 6. Pressure regulating valve; 7. Air inlet pipe; 8. Trigger; 9. Air volume regulating valve; 10. Switch valve; 11. Nozzle; 12. Paint supply pipe; 13. Paint storage tank; 14. Paint return inlet; 15. Paint return pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure 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 disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should also be noted that all standard parts used in this application are commercially available, and can be custom-made according to the description and drawings. Unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances, and unless explicitly limited, machinery, parts, and equipment can all adopt conventional models in the prior art.

[0025] In this document, the term "comprising" is 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. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Example: Reference Figure 1-4 An environmentally friendly handheld light tube end color ribbon spraying device is shown, including an open spraying mold and a spraying device;

[0027] The open-end spray painting mold includes a soft and elastic stainless steel open-end mold 1 for spraying color ribbon, wear-resistant nails 2, bracket 3, accordion protective cloth 4, paint return pipe 15 and bracket base 5. The bracket base 5 is connected to the bracket 3 by a hinge structure. The bracket 3 is also connected to the soft and elastic stainless steel open-end mold 1 by a hinge structure. The bracket 3 is wrapped with elastic accordion protective cloth 4. Multiple wear-resistant nails 2 are fixed at the bottom of the mold to keep the mold at a constant distance from the steel pipe.

[0028] The painting device includes an air intake pipe 7 that provides power, a pressure regulating valve 6 that regulates air pressure, a trigger 8, an air volume regulating valve 9, a switch valve 10, a nozzle 11, a paint supply pipe 12, a paint storage tank 13, and a paint return inlet 14. The nozzle 11 is connected to the support base 5.

[0029] During operation, external compressed air is connected to the air volume regulating valve 9 via the air inlet pipe, and the air pressure is regulated by the air volume regulating valve 9. The compressed air, adjusted to a constant pressure, enters the painting device through the air inlet pipe 7, and the air volume regulating valve 9 is used to control the amount of paint sprayed. Pulling the trigger 8 opens the switch valve 10, and the compressed air is sprayed out from the nozzle 11 after passing through the upper pipeline. During this process, due to the high air velocity at the top of the paint supply pipe 12, a pressure difference is created using Bernoulli's principle. Under the action of this pressure difference, the paint in the paint tank 13 enters the upper cavity through the paint supply pipe 12, is carried by the compressed air, and is sprayed out at the nozzle 11, forming paint aerosol.

[0030] The nozzle 11 is threaded to the bracket 5, the bracket 5 is hinged to the bracket 3, the bracket 3 is hinged to the soft and elastic stainless steel opening mold 1, the bracket 3 is wrapped with an elastic accordion protective cloth 4, and there are multiple wear-resistant nails 2 at the bottom of the mold to keep the soft and elastic stainless steel opening mold 1 at a constant distance from the steel pipe, so as to avoid the impact of the spraying distance fluctuation on the spraying effect.

[0031] During use, the handheld spray gun handle is used to press mold 1 onto the surface of the steel pipe to be painted. Because the flexible stainless steel open mold 1 is hinged to the support 5 and is elastically deformable, it automatically deforms to different curvatures according to the diameter of the steel pipe, fitting snugly against it. The steel pipe rotates automatically on the stand, thus spraying a ribbon onto its surface. Paint not sprayed onto the steel pipe surface is collected inside the flexible stainless steel open mold 1 by the accordion-like protective cloth, flowing back through the bottom paint return pipe 15 to the paint return inlet 14, and then back into the paint storage tank 13 for reuse. Throughout the entire ribbon spraying process, except for the paint sprayed onto the steel pipe surface, no paint leaks, achieving an environmentally friendly operation and 100% paint utilization.

[0032] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An environmentally friendly handheld ribbon spraying device for tube tip coating, characterized in that: include: Includes open-type spray painting molds and spray painting equipment; The open-end spray painting mold includes a soft and elastic stainless steel open-end mold (1) for spraying color ribbon, wear-resistant nails (2), bracket (3), accordion protective cloth (4), paint return pipe (15) and bracket base (5). The bracket base (5) is connected to the bracket (3) by a hinge structure. The bracket (3) is also connected to the soft and elastic stainless steel open-end mold (1) by a hinge structure. The bracket (3) is wrapped with elastic accordion protective cloth (4) around it. Multiple wear-resistant nails (2) are fixed at the bottom of the mold to keep the mold at a constant distance from the steel pipe. The painting device includes an air intake pipe (7) that provides power, a pressure regulating valve (6) that regulates air pressure, a trigger (8), an air volume regulating valve (9), a switch valve (10), a nozzle (11), a paint supply pipe (12), a paint storage tank (13), and a paint return inlet (14). The nozzle (11) is connected to the support base (5).

2. The environmentally friendly handheld ribbon spraying device for tube ends according to claim 1, characterized in that: The nozzle (11) and the bracket (5) are threaded and detachable.

3. The environmentally friendly handheld ribbon spraying device for tube ends according to claim 1, characterized in that: The soft elastic stainless steel opening mold (1) has a rectangular opening, a guide groove is provided around the edge of the rectangular opening, and wear-resistant nails (2) with a spacing of 10mm and a height of 10mm are provided on the soft elastic stainless steel opening mold (1).

4. The environmentally friendly handheld ribbon spraying device for tube ends as described in claim 1, characterized in that: A nozzle (11) is fixedly installed on the paint storage tank (13). The nozzle (11) is connected to the paint storage tank (13) through the paint supply pipe (12). A return paint inlet (14) is connected to one side of the paint storage tank (13).

5. The environmentally friendly handheld ribbon spraying device for tube ends according to claim 1, characterized in that: The nozzle (11) is equipped with a switching valve (10) inside, and a trigger (8) for controlling the switching valve (10) is movably connected to the outside of the nozzle (11).

6. The environmentally friendly handheld ribbon spraying device for tube ends according to claim 1, characterized in that: The nozzle (11) is fixedly equipped with an air volume regulating valve (9) at its tail end, and the nozzle (11) is connected to an air inlet pipe (7). A pressure regulating valve (6) is fixedly installed on the air inlet pipe (7).

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