Automatic coating repairing equipment for variable-angle spraying head

Abstract

The utility model discloses automatic coating repairing equipment for a variable-angle spraying head, which comprises a head part provided with a liquid chamber, a head shell assembled with a plurality of convex rings is arranged on the outer side wall of the liquid chamber in a sliding manner, a plurality of outlets distributed circumferentially are formed in the liquid chamber, and vertical holes and a plurality of inclined holes which are communicated and matched with the outlets are formed in the convex rings. According to the automatic coating repairing equipment of the variable-angle spraying head, the position between the convex ring and the outlet is adjusted by utilizing the movable head shell, so that the vertical hole or the single inclined hole is communicated with the outlet and is used for adjusting the spraying direction of paint liquid, and the sprayed paint liquid can be upwards or obliquely aligned to the bending position of a metal surface; efficient curved surface spraying work can be achieved without changing the position of the spraying head, the purpose of changing the spraying position by changing the liquid outlet direction is achieved, and the problem that a large amount of time needs to be consumed in the process of adjusting the position of the spraying head is solved.

Description

Technical Field

[0001] This utility model relates to the field of spray head technology for coating repair, and more specifically to an automated coating repair device with a variable angle spray head. Background Technology

[0002] Pipes, steel frames, metal plates and other surfaces are usually coated with corrosion-resistant and wear-resistant paint to extend and protect the metal surface. However, after long-term use and wear, the paint needs to be sprayed again to slow down the corrosion of the metal.

[0003] According to the publication (announcement) number: CN217615535U, the publication (announcement) date: 2022-10-21, an oil and gas pipeline coating repair device is disclosed, including a trolley body, a spray head, and an extension rod for installing and reciprocating the spray head.

[0004] In the prior art, including the aforementioned patents, when using a trolley to operate a paint can containing a spray head, the spray head is often manually held or uses a specific movement drive path. Furthermore, the spray head typically only has a unidirectional spraying method facing the metal surface. If the metal end becomes curled and recessed, with the recessed end facing the original metal surface, after completing the flat or curved surface spraying, the spray head must be manually redirected, or the direction of the spray head on the automatic reciprocating motion path must be changed, and the spraying direction must be directed towards the inner side of the curled recess to complete the spraying of the inner curved surface. This results in low automation, cumbersome manual processing, and the reciprocating motion path also requires manual adjustment, consuming a significant amount of adjustment time. Utility Model Content

[0005] The purpose of this invention is to provide an automated coating repair device with a variable angle spray head, which aims to solve the problems mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automated coating repair device with a variable angle spray head includes a head with a liquid chamber, and a head shell fitted with multiple protruding rings is slidably disposed on the outer side wall of the liquid chamber.

[0008] The liquid chamber has multiple outlets arranged in a circle, and the convex ring has vertical holes and multiple oblique holes that communicate with and cooperate with the outlets.

[0009] Preferably, it also includes a rotating frame that rotates in the liquid chamber, and a plurality of sealing plates that abut against the outlet are fixedly installed on the rotating frame.

[0010] Preferably, the head shell has multiple end holes at its end, and an elastic cap for sealing the end holes is fixedly installed in the end holes in the default state.

[0011] Preferably, the rotating frame is also fixedly installed with a pusher for pushing against the opening end hole of the elastic cover.

[0012] Preferably, it also includes a push rod that slides at the axis of the head, and the push rod is fixedly connected to the inner wall of the end of the head shell.

[0013] Preferably, it also includes a shaft tube that rotates outside the push rod, and the shaft tube is fixedly connected to the rotating frame.

[0014] Preferably, a power chamber is provided on the head, and a ring tooth that moves within the power chamber is fixedly installed at the end of the shaft tube.

[0015] Preferably, the head has a channel communicating with the liquid chamber.

[0016] Preferably, the sealing plate is an arc-shaped elastic metal plate.

[0017] Preferably, the elastic cover is a fan-shaped elastic metal sheet.

[0018] In the above technical solution, the automated coating repair equipment with a variable angle spray head provided by this utility model has the following beneficial effects: by using a movable head shell to adjust the position between the convex ring and the outlet, the vertical hole or a single oblique hole is connected to the outlet to adjust the direction of paint spraying, so that the sprayed paint can be aligned upward or obliquely with the curved position of the metal surface. Efficient curved surface spraying can be achieved without changing the position of the spray head, and the purpose of changing the spraying position by changing the liquid outlet direction is achieved, avoiding the problem of spending a lot of time in the process of adjusting the position of the spray head. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the spray head provided in an embodiment of this utility model;

[0021] Figure 2 This is a side cross-sectional view of the spray head provided in an embodiment of the present utility model;

[0022] Figure 3 An exploded view of the head and shell of the spray nozzle provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the push rod, shaft tube, and rotating frame assembly provided for an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Head; 10. Power chamber; 11. Channel; 12. Liquid chamber; 13. Outlet; 2. Head shell; 21. Convex ring; 22. Vertical hole; 23. Inclined hole; 24. End hole; 25. Elastic cover; 3. Push rod; 4. Shaft tube; 41. Ring tooth; 5. Rotating frame; 51. Sealing plate; 52. Push frame. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-4 As shown, an automated coating repair device with a variable angle spray head includes a head 1 with a liquid chamber 12, and a head shell 2 with multiple protruding rings 21 slidably disposed on the outer wall of the liquid chamber 12.

[0028] The liquid chamber 12 has multiple outlets 13 arranged in a circle, and the convex ring 21 has vertical holes 22 and multiple oblique holes 23 that communicate and cooperate with the outlets 13.

[0029] Specifically, the head 1 (10-15 cm in diameter) is connected by traditional pipes and sprayed using an automated method that combines vertical and horizontal movement. The movement and driving methods are existing technologies and will not be described in detail here.

[0030] Furthermore, the liquid chamber 12 has a port that is blocked by the head shell 2, so that the paint liquid in the liquid chamber 12 can be discharged from the outlet 13. The multiple outlets 13 arranged in a circle are grouped together and are arranged equidistantly on the side wall of the liquid chamber 12. The number of equidistant outlets is determined according to the axial length of the metal to be sprayed.

[0031] Furthermore, the convex rings 21 are equidistantly arranged on the outer wall of the head shell 2, with the purpose of providing the required thickness for the paint spraying direction guided by the vertical holes 22 and the oblique holes 23, i.e. the required path length for different directions.

[0032] Furthermore, multiple oblique holes 23 are symmetrically distributed on both sides of the vertical hole 22, and the number of oblique holes 23 is also determined according to the axial length of the metal to be sprayed. The oblique holes 23 and the vertical hole 22 maintain a predetermined angle, and the oblique holes 23 further away from the vertical hole 22 have a larger inclination angle. The diameter of the port of the vertical hole 22 and the port of the oblique holes 23 corresponds to the amount of paint sprayed. They can also be pre-cut and shaped according to requirements and then assembled with the head 1 to adapt to the metal to be sprayed in batches.

[0033] Paint is supplied to the liquid chamber 12 through a pipeline. The position between the convex ring 21 and the outlet 13 is adjusted by the movable head shell 2, so that the vertical hole 22 or a single oblique hole 23 can be connected to the outlet 13 to adjust the direction of paint spraying. This allows the sprayed paint to be aimed upward or obliquely at the curved position of the metal surface. Efficient curved surface spraying can be achieved without changing the position of the spray head. This achieves the purpose of changing the spraying position by changing the liquid outlet direction, avoiding the problem of spending a lot of time adjusting the position of the spray head.

[0034] As a further embodiment of this utility model, it also includes a rotating frame 5 that rotates in the liquid chamber 12, and a plurality of sealing plates 51 that abut against and cooperate with the outlet 13 are fixedly installed on the rotating frame 5.

[0035] Specifically, the sealing plate 51 is also arranged in a circle, and the number of the circumference of the outlet 13 is one more than the number of the sealing plate 51. The purpose is to leave a row of outlets 13 for spraying work in the direction required by the spray head.

[0036] Multiple sealing plates 51 are used to block the outlets 13 that do not need to spray paint, ensuring the stability of the paint sprayed from the required outlets 13. In addition, the sealing plates 51 can also scrape the inner wall of the liquid chamber 12 during the rotation process, reducing the solidification of paint in the liquid chamber 12 and preventing blockage of the inner side of the outlet 13 port, thus ensuring the smoothness of paint spraying.

[0037] As another embodiment of this utility model, the head shell 2 has a plurality of end holes 24 at its end, and an elastic cover 25 for sealing the end holes 24 in the default state is fixedly installed in the end holes 24.

[0038] Specifically, the end holes 24 are arranged circumferentially at the conical end of the head shell 2.

[0039] By opening the end hole 24 through the elastic cover 25, the paint in the liquid chamber 12 can be sprayed out from the end of the spray head for spraying treatment of the metal surface. When multiple end holes 24 are used, the sprayed paint can be closer to the desired spraying position, reducing the power consumption of the spray head's vertical or horizontal stroke.

[0040] As another embodiment further provided in this utility model, a pusher 52 for pushing the elastic cover 25 to open the end hole 24 is also fixedly installed on the rotating frame 5.

[0041] Specifically, the L-shaped pusher 52 is positioned opposite to the sealing plate 51, and the pusher 52 and the missing sealing plate 51 on the rotating frame 5 are on the same straight line.

[0042] The rotating frame 5 stops the pusher 52 at the desired position of the elastic cover 25. Then, the head shell 2 is moved to offset the convex ring 21 and the outlet 13, so that all outlets 13 are blocked. The elastic cover 25 is pushed open by actively approaching the pusher 52 to spray the paint from the end of the spray head. At the same time, the degree of pushing of the elastic cover 25 can be adjusted so that the elastic cover 25 has a predetermined tilt angle with the horizontal plane, so that the paint sprayed from the end of the spray head is oblique to the metal surface, and can also handle certain metal surface bends, thus improving the use effect.

[0043] As a further embodiment of this utility model, it also includes a push rod 3 that slides at the axis of the head 1, and the push rod 3 is fixedly connected to the inner wall of the end of the head shell 2.

[0044] Specifically, the head 1 has a hole for the axial sliding of the push rod 3, and the end of the push rod 3 is welded to the cone top of the head shell 2. The other end of the push rod 3 is detachably connected to the output end of the electric push rod using bolts and nuts. The connection method of the electric push rod and the connection position (located on the base for the traction up and down and horizontal movement of the spray head) are all existing technologies and will not be described in detail here.

[0045] The push rod 3 with a power source makes it easier to move the head shell 2, and makes it more convenient and efficient to adjust the paint spray.

[0046] As another embodiment of this utility model, it also includes a shaft tube 4 that rotates outside the push rod 3, and the shaft tube 4 is fixedly connected to the rotating frame 5.

[0047] Specifically, the end of the shaft tube 4 is detachably screwed to the circular plate at the center of the rotating frame 5.

[0048] The shaft tube 4 can drive the rotating frame 5 to move outside the push rod 3 so as to perform the necessary sealing work on the outlet 13. At the same time, the rods on the rotating frame 5 can be used to stir the liquid chamber 12.

[0049] As a further embodiment of this utility model, a power chamber 10 is provided on the head 1, and a ring tooth 41 that moves in the power chamber 10 is fixedly installed at the end of the shaft tube 4.

[0050] Specifically, the power chamber 10 is equipped with a motor located on the base and powered by 220V. The output end of the motor is equipped with a detachable gear by a coupling, and the gear and ring gear 41 mesh with several teeth. The installation, self-locking method and meshing transmission method of the motor are all existing technologies and will not be described in detail here.

[0051] By providing power to rotate the shaft tube 4 through the head 1, the rotating frame 5 becomes more responsive and the sealing of the outlet 13 becomes more stable.

[0052] As another embodiment of this utility model, the head 1 is provided with a channel 11 communicating with the liquid chamber 12.

[0053] The paint liquid is transferred and transported through multiple channels 11, ensuring the original stability of the head 1 while also allowing the paint liquid to be transported to the liquid chamber 12.

[0054] As another embodiment further provided in this utility model, the sealing plate 51 is specifically an arc-shaped elastic metal plate.

[0055] The arc-shaped elastic metal plate allows the sealing plate 51 to fit more closely to the inner wall of the liquid chamber 12, resulting in higher scraping efficiency. At the same time, the paint will coat the sealing plate 51, providing stronger protection for the gradually thinning sealing plate 51 as it wears down.

[0056] As another embodiment further provided in this utility model, the elastic cover 25 is specifically a fan-shaped elastic metal sheet.

[0057] The fan-shaped elastic metal sheet makes the connection position of the elastic cover 25 more distinct and easier to open by pushing.

[0058] Working principle: Paint is supplied to the liquid chamber 12 through a pipeline. Then, the position between the convex ring 21 and the outlet 13 is adjusted by the moving head shell 2, so that the vertical hole 22 or a single oblique hole 23 can be connected to the outlet 13 to adjust the direction of paint spraying. This allows the sprayed paint to be aimed upward or obliquely at the curved position of the metal surface. Efficient curved surface spraying can be achieved without changing the position of the spray head. The rotating frame 5 stops the pusher 52 at the required position of the elastic cover 25. Then, the head shell 2 is moved to offset the convex ring 21 and the outlet 13, so that all outlets 13 are blocked. The elastic cover 25 is pushed open by actively approaching the pusher 52 to spray paint from the end of the spray head. At the same time, the degree of pushing of the elastic cover 25 can be adjusted so that the elastic cover 25 has a predetermined tilt angle with the horizontal plane, which can make the paint sprayed from the end of the spray head obliquely towards the metal surface and can also handle certain metal surface curvature.

[0059] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automated coating repair device with a variable angle spray head, characterized in that, The device includes a head (1) with a liquid chamber (12) and a head shell (2) fitted with multiple protruding rings (21) is slidably disposed on the outer wall of the liquid chamber (12). The liquid chamber (12) has multiple outlets (13) arranged in a circular pattern, and the convex ring (21) has vertical holes (22) and multiple oblique holes (23) that communicate and cooperate with the outlets (13).

2. The automated coating repair equipment with a variable angle spray head according to claim 1, characterized in that, It also includes a rotating frame (5) that rotates in the liquid chamber (12), on which a plurality of sealing plates (51) are fixedly installed to abut against the outlet (13).

3. The automated coating repair equipment with a variable angle spray head according to claim 2, characterized in that, The head shell (2) has multiple end holes (24) at its end, and an elastic cap (25) for sealing the end hole (24) is fixedly installed in the end hole (24) in the default state.

4. The automated coating repair equipment with a variable angle spray head according to claim 3, characterized in that, The rotating frame (5) is also fixedly installed with a pusher (52) for pushing the elastic cover (25) to open the end hole (24).

5. An automated coating repair device with a variable angle spray head according to claim 3, characterized in that, It also includes a push rod (3) that slides at the axis of the head (1), and the push rod (3) is fixedly connected to the inner wall of the end of the head shell (2).

6. An automated coating repair device with a variable angle spray head according to claim 5, characterized in that, It also includes a shaft tube (4) that rotates outside the push rod (3), and the shaft tube (4) is fixedly connected to the rotating frame (5).

7. An automated coating repair device with a variable angle spray head according to claim 6, characterized in that, The head (1) is provided with a power chamber (10), and the end of the shaft tube (4) is fixedly installed with a ring tooth (41) that moves in the power chamber (10).

8. An automated coating repair device with a variable angle spray head according to claim 6, characterized in that, The head (1) has a channel (11) that communicates with the liquid chamber (12).

9. An automated coating repair device with a variable angle spray head according to claim 6, characterized in that, The sealing plate (51) is specifically an arc-shaped elastic metal plate.

10. An automated coating repair device with a variable angle spray head according to claim 6, characterized in that, The elastic cover (25) is specifically a fan-shaped elastic metal sheet.

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