Spraying device for surface treatment of Venturi tube

Abstract

The utility model discloses a spraying device for surface treatment of a Venturi tube, and relates to the technical field of spraying devices. The paint spraying device comprises a supporting frame, and a paint spraying mechanism is fixed to the upper portion of the supporting frame. The fixing mechanism comprises a supporting column and two sliding blocks, wherein the supporting column is arranged in the supporting frame in a rotating fit mode, and the two sliding blocks are arranged in the supporting column in an opposite sliding fit mode. The Venturi tube is arranged on the supporting column in a sleeving mode, the first driving mechanism is started to drive the first top plate and the second top plate to rotate, then the ends of the first top plate and the second top plate are driven to abut against the inner wall of the Venturi tube, and the first top plates of the two sliding blocks abut against the inner walls of the two ends of the Venturi tube respectively; and a symmetric trumpet-shaped structure of the venturi tube is matched, so that the venturi tube is centered and positioned, the positioning stability of the venturi tube is improved, the two ends of the venturi tube are conveniently supported, and the stability of driving the venturi tube to rotate is improved.

Description

Technical Field

[0001] This utility model belongs to the field of spraying devices, specifically, it relates to a spraying device for surface treatment of venturi tubes. Background Technology

[0002] Venturi tubes are commonly used in industries such as petroleum, chemical and metallurgy for the control and metering of large-diameter fluids.

[0003] Chinese patent CN215281427U discloses a surface polishing device for producing venturi tubes with controllable feed depth. Rotating the central screw can push the connecting support rod to move outward under the action of the moving block and the guide rod. The movement of the connecting support rod can then support and limit the inner wall of the venturi tube, thereby fixing the position of the venturi tube.

[0004] However, in the aforementioned surface polishing device for producing venturi tubes with controllable feed depth, the venturi tube is positioned by using a connecting support rod to hold the inner wall of the venturi tube in place. The end of the venturi tube furthest from the connecting support rod is too unbalanced, which affects the stability of driving the venturi tube to rotate.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a spraying device for surface treatment of venturi tubes.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A spraying apparatus for surface treatment of venturi tubes, comprising:

[0009] A support frame, on the upper part of which a painting mechanism is fixed;

[0010] The fixing mechanism includes a support column rotatably fitted within the support frame, two sliders slidably fitted in opposite directions within the support column, a first driving mechanism disposed within the support column for driving the two sliders to slide, two first top plates respectively hinged to the upper and lower sides of the sliders, a second top plate hinged between the first top plates and the support column, and a second driving mechanism disposed on one side of the support frame for driving the support column to rotate.

[0011] Optionally, the support column is provided with guide channels on both sides corresponding to the slider, and the slider slides within the guide channels.

[0012] Optionally, the first drive mechanism includes a first servo motor disposed in one of the guide channels, a bidirectional threaded rod disposed at the output end of the first servo motor and threadedly engaged with the two sliders, the two ends of the bidirectional threaded rod having opposite thread directions, the two ends of the bidirectional threaded rod being threadedly engaged with the two sliders respectively, a bearing being embedded between the two guide channels, a smooth surface being provided on the outer side of the middle part of the bidirectional threaded rod, and the middle part of the bidirectional threaded rod being fixed in the bearing.

[0013] Optionally, the second drive mechanism includes a second servo motor located outside the support frame, an extension column located at one end of the output shaft of the second servo motor extending into the support frame, and the support column being fixed to one end of the extension column.

[0014] Optionally, the painting mechanism includes a paint tank located on the upper side of the support frame, a rigid pipe connected to the bottom end, an elastic telescopic pipe connected to one end of the rigid pipe extending into the support frame, a paint pump connected to one end of the elastic telescopic pipe, a spray head connected to one end of the paint pump, and a linear motor located inside the support frame, wherein the paint pump is fixed on the movable end of the linear motor.

[0015] Optionally, the support frame is a U-shaped frame structure, and a collection box is placed on the bottom surface of the inner wall of the support frame.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] By fitting the venturi tube onto the support column, the first drive mechanism is activated to rotate the first and second top plates, thereby causing the ends of the first and second top plates to press against the inner wall of the venturi tube. The first top plates with two sliders press against the inner walls of both ends of the venturi tube respectively. In conjunction with the symmetrical trumpet-shaped structure of the venturi tube, the venturi tube is centered and positioned, improving the stability of the venturi tube positioning. This facilitates support at both ends of the venturi tube and improves the stability of rotating the venturi tube. The second drive mechanism is activated to rotate the venturi tube through the support column, and the painting mechanism is activated to spray paint on different positions on the outside of the venturi tube.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the fixing mechanism structure according to an embodiment of the present utility model;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] Support frame 1, spraying mechanism 2, paint tank 201, elastic telescopic tube 202, paint pump 203, spray nozzle 204, linear motor 205, fixing mechanism 3, support column 301, slider 302, first drive mechanism 303, first servo motor 3031, bidirectional threaded rod 3032, first top plate 304, second top plate 305, second drive mechanism 306, second servo motor 3061, extension column 3062, guide channel 307, collection box 4.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this embodiment provides a spraying apparatus for surface treatment of venturi tubes, comprising:

[0028] Support frame 1, with a painting mechanism 2 fixed on the upper part of support frame 1;

[0029] The fixing mechanism 3 includes a support column 301 rotatably fitted within the support frame 1, two sliders 302 slidably fitted in opposite directions within the support column 301, a first drive mechanism 303 located within the support column 301 for driving the two sliders 302 to slide, two first top plates 304 respectively hinged to the upper and lower sides of the sliders 302, a second top plate 305 hinged between the first top plate 304 and the support column 301, and a second drive mechanism 306 located on one side of the support frame 1 for driving the support column 301 to rotate.

[0030] By fitting the venturi tube onto the support column 301, the first drive mechanism 303 is activated to drive the first top plate 304 and the second top plate 305 to rotate, thereby causing the ends of the first top plate 304 and the second top plate 305 to press against the inner wall of the venturi tube. The first top plate 304 of the two sliders 302 presses against the inner walls of both ends of the venturi tube respectively. With the symmetrical trumpet-shaped structure of the venturi tube, the venturi tube is centered and positioned, improving the stability of the venturi tube positioning, facilitating the support of both ends of the venturi tube, and improving the stability of driving the venturi tube to rotate. The second drive mechanism 306 is activated to drive the venturi tube to rotate through the support column 301, and the painting mechanism 2 is activated to spray paint on different positions on the outside of the venturi tube.

[0031] Please see Figure 2-3 As shown, in this embodiment, the support column 301 has guide channels 307 on both sides corresponding to the slider 302. The slider 302 slides in the guide channel 307, which facilitates the sliding of the slider 302 through the guide channel 307 and improves the stability of the slider 302. The first drive mechanism 303 includes a first servo motor 3031 disposed in one of the guide channels 307 and a bidirectional threaded rod 3032 disposed at the output end of the first servo motor 3031 and threaded with the two sliders 302. The threads at both ends of the bidirectional threaded rod 3032 are opposite in direction. The two ends of the bidirectional threaded rod 3032 are threaded with the two sliders 302 respectively. A bearing is embedded between the two guide channels 307. A smooth surface is provided on the outer side of the middle part of the bidirectional threaded rod 3032. The middle part of the bidirectional threaded rod 3032 is fixed in the bearing, which facilitates the first servo motor 3031 to drive the bidirectional threaded rod 3032 to rotate the first top plate 304 and the second top plate 305, thereby driving the ends of the first top plate 304 and the second top plate 305 to press against the inner wall of the venturi tube.

[0032] Please see Figure 2-3 As shown, the second drive mechanism 306 in this embodiment includes a second servo motor 3061 located outside the support frame 1, an extension column 3062 located at one end of the output shaft of the second servo motor 3061 extending into the support frame 1, and a support column 301 fixed to one end of the extension column 3062, so as to facilitate the second servo motor 3061 to drive the extension column 3062 to rotate the venturi tube through the support column 301.

[0033] Please see Figure 1-3As shown, the painting mechanism 2 in this embodiment includes a paint tank 201 located on the upper side of the support frame 1, a rigid pipe connected to the bottom end, an elastic telescopic pipe 202 connected to one end of the rigid pipe extending into the support frame 1, a paint pump 203 connected to one end of the elastic telescopic pipe 202, a nozzle 204 connected to one end of the paint pump 203, and a linear motor 205 located inside the support frame 1. The paint pump 203 is fixed on the movable end of the linear motor 205, which facilitates the opening of the paint pump 203 to spray paint through the nozzle 204. The opening of the linear motor 205 drives the nozzle 204 to spray paint at different positions. The support frame 1 has a U-shaped frame structure, and a collection box 4 is placed on the bottom surface of the inner wall of the support frame 1 to facilitate the collection of paint sprayed through the collection box 4.

[0034] Working principle: The venturi tube is fitted onto the support column 301. The first drive mechanism 303 is activated, and the first servo motor 3031 drives the bidirectional threaded rod 3032 to rotate the first top plate 304 and the second top plate 305. This causes the ends of the first top plate 304 and the second top plate 305 to press against the inner wall of the venturi tube. The first top plate 304 of the two sliders 302 presses against the inner walls of both ends of the venturi tube respectively. With the symmetrical trumpet-shaped structure of the venturi tube, the venturi tube is centered and positioned, improving the stability of the venturi tube positioning and facilitating the support of both ends of the venturi tube, thus improving the stability of the rotation of the venturi tube. The second drive mechanism 306 is activated, and the second servo motor 3061 drives the extension column 3062 to rotate the venturi tube through the support column 301. The paint pump 203 is activated to spray paint through the nozzle 204, and the linear motor 205 is activated to drive the nozzle 204 to spray paint at different positions.

[0035] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All electrical appliances in this utility model are powered by an external power source or a built-in battery. No restrictions are placed on the model or specific type of any electrical appliance in this utility model. Those skilled in the art can clearly identify the applicable electrical appliance model, specific type, and power supply method based on common knowledge in the field.

[0036] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A spray device for surface treatment of a Venturi tube, characterized in that include: Support frame (1), the upper part of which is fixed with a painting mechanism (2); The fixing mechanism (3) includes a support column (301) rotatably fitted in the support frame (1), two sliders (302) slidably fitted in the support column (301), a first driving mechanism (303) disposed in the support column (301) and used to drive the two sliders (302) to slide, two first top plates (304) respectively hinged to the upper and lower sides of the sliders (302), a second top plate (305) hinged between the first top plate (304) and the support column (301), and a second driving mechanism (306) disposed on one side of the support frame (1) and used to drive the support column (301) to rotate.

2. The spraying apparatus for surface treatment of Venturi tubes according to claim 1, characterized in that, The support column (301) is provided with guide channels (307) on both sides corresponding to the slider (302), and the slider (302) slides in the guide channels (307).

3. A spray device for surface treatment of a venturi according to claim 2, wherein The first drive mechanism (303) includes a first servo motor (3031) disposed in one of the guide channels (307) and a bidirectional threaded rod (3032) disposed at the output end of the first servo motor (3031) and threadedly engaged with the two sliders (302).

4. A spray device for surface treatment of a venturi according to claim 3, wherein The two ends of the bidirectional threaded rod (3032) have opposite thread directions, and the two ends of the bidirectional threaded rod (3032) are respectively threaded into the two sliders (302).

5. A spray device for surface treatment of a venturi according to claim 4, wherein A bearing is embedded between the two guide channels (307), and a smooth surface is provided on the outer side of the middle part of the bidirectional threaded rod (3032). The middle part of the bidirectional threaded rod (3032) is fixed in the bearing.

6. A spray device for surface treatment of a venturi according to claim 1, wherein The second drive mechanism (306) includes a second servo motor (3061) located outside the support frame (1), an extension column (3062) located at one end of the output shaft of the second servo motor (3061) extending into the support frame (1), and the support column (301) fixed at one end of the extension column (3062).

7. A spray device for surface treatment of a venturi according to claim 1, wherein The painting mechanism (2) includes a paint tank (201) located on the upper side of the support frame (1), a rigid pipe connected to the bottom end, an elastic telescopic pipe (202) connected to one end of the rigid pipe that extends into the support frame (1), a paint pump (203) connected to one end of the elastic telescopic pipe (202), a spray nozzle (204) connected to one end of the paint pump (203), and a linear motor (205) located in the support frame (1). The paint pump (203) is fixed on the movable end of the linear motor (205).

8. A spray device for surface treatment of a venturi according to claim 1, wherein The support frame (1) is a square frame structure, and a collection box (4) is placed on the bottom surface of the inner wall of the support frame (1).

Images