A steel pipe internal and external coating equipment

Abstract

This disclosure relates to the field of spraying equipment technology. One embodiment of this disclosure provides a steel pipe internal and external coating equipment, which includes: an equipment frame, a material box, and a spraying pump. The material box is disposed outside the equipment frame, and the spraying pump is disposed on the material box. Circular openings are formed on both sides of the equipment frame. A supporting moving component is disposed in the equipment frame, and a fixed frame is disposed on the side surface of the equipment frame. A central pipe is fixed inside the fixed frame, and a spraying component is disposed on the central pipe. The spraying component includes a conveying pipe connected inside the central pipe. One end of the conveying pipe is connected to the output end of the spraying pump. A cavity cover is rotatably and sealed inside one end of the central pipe, and a plurality of internal spraying pipes are arranged around the surface of the cavity cover. This technical solution solves the technical problems of poor spraying effect when operated manually in the prior art, and the inability of some equipment to complete internal and external one-time spraying simultaneously.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of spraying equipment technology, and more specifically, to a steel pipe internal and external coating equipment. Background Technology

[0002] In the field of steel pipe production and use, internal and external coating of steel pipes is a crucial step in improving their performance and service life. Traditional steel pipe internal and external coating equipment has many drawbacks. Existing equipment has a low degree of automation. During the coating process, from feeding and conveying the steel pipes to the coating operation, a large amount of manual intervention is often required. This not only increases labor costs, but also makes it difficult to ensure the consistency of manual operation, resulting in inconsistent coating quality and affecting the overall quality of the steel pipes. On the other hand, current equipment cannot complete internal and external coating simultaneously.

[0003] Therefore, improvements have been made to address the aforementioned issues. Utility Model Content

[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a steel pipe internal and external coating equipment, which solves the technical problems of poor spraying effect of manual operation in the prior art, and the inability of some equipment to complete internal and external one-time spraying at the same time.

[0005] According to one aspect, at least one embodiment of this disclosure provides a steel pipe internal and external coating device, comprising:

[0006] The equipment rack, material box, and spray pump are provided, with the material box located outside the equipment rack and the spray pump mounted on the material box.

[0007] A pair of circular openings and a supporting movable component, wherein the circular openings are formed on both sides of the equipment rack, and the supporting movable component is disposed in the equipment rack;

[0008] The equipment includes a mounting frame, a central tube, and a spraying assembly. The mounting frame is disposed on the side surface of the equipment frame, the central tube is fixed inside the mounting frame, and the spraying assembly is disposed on the central tube.

[0009] The spraying assembly includes a delivery pipe connected inside the central tube. One end of the delivery pipe is connected to the output end of the spraying pump. A cavity cover is rotatably and sealed inside one end of the central tube. Several inner spraying pipes are arranged around the surface of the cavity cover.

[0010] As a further technical solution, a drive motor is fixed on the central tube, and a transmission frame is arranged around the side surface of the cavity cover. Both the transmission frame and the output end of the drive motor are provided with transmission wheels.

[0011] As a further technical solution, the transmission wheels are connected by belt drive, a number of first ultraviolet lamp plates are fixed on the transmission frame, and an outer ring frame is fixed at the bottom of the equipment frame, the outer ring frame having a hollow structure inside.

[0012] As a further technical solution, a number of external spraying pipes are installed around the inner surface of the outer ring frame, and a number of second ultraviolet lamp plates are arranged around the side surface of the outer ring frame.

[0013] As a further technical solution, the supporting moving component includes several slots, which are evenly opened around the circular opening. Each slot is rotatably connected to a conveyor wheel, and the conveyor wheel at the bottom of one side of the circular opening is controlled to rotate by a motor.

[0014] As a further technical solution, a base frame is provided at the bottom of the equipment frame, and a number of rolling wheels are installed on the base frame. The height of the rolling wheels is the same as the height of the conveyor wheel located at the bottom.

[0015] As a further technical solution, both the conveyor wheel and the rolling wheel have surfaces made of rubber with high friction.

[0016] As a further technical solution, the slots and the conveyor wheel are arranged in a cross-shaped relative position.

[0017] As a further technical solution, a sealing protrusion is provided around the inner surface of one end of the central tube, and the sealing protrusion is slidably embedded in the cavity cover.

[0018] The beneficial effects of the embodiments disclosed herein are as follows:

[0019] 1. In this disclosure, the beneficial effects of the spraying assembly are that, with the cooperation of the conveying pipe, the inner spraying pipe and the outer spraying pipe, the inner and outer walls of the steel pipe are sprayed simultaneously, which improves the coating efficiency. The cooperation of the drive motor, the transmission frame and the transmission wheel enables the inner spraying pipe to spray evenly, ensuring the coating quality of the inner wall of the steel pipe. The first ultraviolet lamp plate and the second ultraviolet lamp plate perform preliminary curing of the coating after spraying, which speeds up the coating process and improves the overall production efficiency.

[0020] 2. In this disclosure, the beneficial effects of the supporting moving component are that the cross-shaped distribution of the slots and conveyor wheels can stably support the steel pipe and prevent it from tilting. The rubber structure on the surface of the conveyor wheels and rolling wheels increases the friction, ensuring that the steel pipe will not slip during the conveying process and improving the stability of the conveying. The rolling wheels at the bottom cooperate with the conveyor wheels to provide stable support from the bottom, ensuring the smoothness of the steel pipe during the movement process and providing good conveying conditions for the internal and external coating of the steel pipe. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0023] Figure 2 This is an isometric drawing of the present disclosure;

[0024] Figure 3 This is an isometric sectional view of the present disclosure;

[0025] Figure 4 This is another isometric sectional view of this disclosure;

[0026] Figure 5 Appendix to this disclosure Figure 1 Enlarged view of part A in the middle;

[0027] Figure 6 Appendix to this disclosure Figure 4 Enlarged view of part B in the middle section;

[0028] In the diagram: 1. Equipment frame; 2. Material box; 3. Spray pump; 4. Circular opening; 5. Fixing frame; 6. Central tube; 7. Spraying assembly; 7-1. Conveying pipe; 7-2. Cavity cover; 7-3. Inner spraying pipe; 7-4. Drive motor; 7-5. Transmission frame; 7-6. Transmission wheel; 7-7. First ultraviolet lamp plate; 7-8. Outer ring frame; 7-9. Outer spraying pipe; 7-10. Second ultraviolet lamp plate; 8. Support moving assembly; 8-1. Groove; 8-2. Conveying wheel; 8-3. Base frame; 8-4. Rolling wheel; 9. Sealing protrusion. Detailed Implementation

[0029] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0030] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" 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 connection 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.

[0032] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0034] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] like Figures 1-6 As shown, it illustrates a steel pipe internal and external coating device according to an embodiment of the present disclosure, comprising:

[0036] The equipment rack 1, the material box 2, and the spray pump 3 are arranged on the outside of the equipment rack 1 and the spray pump 3 is arranged on the material box 2.

[0037] A pair of circular openings 4 and a supporting movable component 8 are provided. The circular openings 4 are opened on both sides of the equipment rack 1, and the supporting movable component 8 is disposed in the equipment rack 1.

[0038] The fixture 5, the central tube 6, and the spraying assembly 7 are provided. The fixture 5 is installed on the side surface of the equipment frame 1, the central tube 6 is fixed inside the fixture 5, and the spraying assembly 7 is installed on the central tube 6.

[0039] The spraying assembly 7 includes a conveying pipe 7-1, which is connected inside the central tube 6. One end of the conveying pipe is connected to the output end of the spraying pump 3. A cavity cover 7-2 is rotatably and sealed inside one end of the central tube 6. Several inner spraying pipes 7-3 are arranged around the surface of the cavity cover 7-2. A drive motor 7-4 is fixed on the central tube 6. A transmission frame 7-5 is arranged around the side surface of the cavity cover 7-2. A transmission wheel 7-6 is arranged on the transmission frame 7-5 and the output end of the drive motor 7-4. The transmission wheels 7-6 are connected by belt drive. Several first ultraviolet lamp plates 7-7 are fixed on the transmission frame 7-5. An outer ring frame 7-8 is fixed at the bottom inside the equipment frame 1. The outer ring frame 7-8 has a hollow structure inside. Several outer spraying pipes 7-9 are installed around the inner surface of the outer ring frame 7-8. Several second ultraviolet lamp plates 7-10 are arranged around the side surface of the outer ring frame 7-8.

[0040] In some examples, to achieve the effect of simultaneous spraying on both the inner and outer surfaces of the steel pipe, a spraying assembly 7 is designed. This assembly includes a delivery pipe 7-1 connected inside the central pipe 6, with one end connected to the output end of the spraying pump 3. The spraying pump 3 delivers paint to the central pipe 6 through the delivery pipe 7-1. A cavity cover 7-2 is rotatably fitted inside one end of the central pipe 6. Several inner spraying pipes 7-3 are distributed around the surface of the cavity cover 7-2, allowing paint to be sprayed into the pipe through the inner spraying pipes 7-3. A drive motor 7-4 is fixed on the central pipe 6. A transmission frame 7-5 is arranged around the side surface of the cavity cover 7-2. Both the transmission frame 7-5 and the output end of the drive motor 7-4 are equipped with transmission wheels 7-6, which are connected by a belt drive. When the drive motor 7-4... During operation, the transmission frame 7-5 and the cavity cover 7-2 are driven to rotate via belt drive, enabling the inner spraying pipe 7-3 to spray the interior of the object more evenly. Several first ultraviolet lamp plates 7-7 are fixed on the transmission frame 7-5, which can be used to pre-cur the coating after spraying using ultraviolet light. An outer ring frame 7-8 is fixed at the bottom of the equipment frame 1. The outer ring frame 7-8 has a hollow structure inside. The bottom of the outer ring frame 7-8 passes through the equipment frame 1 and is connected to the output end of the spraying pump 3. Several outer spraying pipes 7-9 are installed around its inner surface for spraying the exterior of the steel pipe. The number of outer spraying pipes 7-9 is greater and their distribution is denser to ensure uniform spraying. Several second ultraviolet lamp plates 7-10 are set around the side surface of the outer ring frame 7-8, which also pre-cur the coating after spraying the exterior of the steel pipe.

[0041] like Figures 1-6As shown, this embodiment proposes a supporting moving component 8 including several slots 8-1, which are evenly opened around the circumference of the circular opening 4. Each slot 8-1 is rotatably connected to a conveyor wheel 8-2. The conveyor wheel 8-2 at the bottom of one side of the circular opening 4 is rotated by a motor. A base frame 8-3 is provided at the bottom of the equipment frame 1. Several rolling wheels 8-4 are installed on the base frame 8-3. The height of the rolling wheels 8-4 is the same as the height of the conveyor wheel 8-2 located at the bottom.

[0042] In some examples, to achieve the effect of supporting and transporting the pipe, a supporting moving component 8 is designed. This component includes multiple slots 8-1, which are evenly distributed around the two circular openings 4. Each slot 8-1 is rotatably connected to a conveying wheel 8-2, which can tightly fit the steel pipe in the middle. The conveying wheel 8-2 located on the bottom side of the circular opening 4 is controlled by a motor to rotate. When the motor is running, it can drive the steel pipe to move. A base frame 8-3 is set at the bottom of the equipment frame 1. Several rolling wheels 8-4 are installed on the base frame 8-3. The height of the rolling wheels 8-4 is the same as the height of the conveying wheel 8-2 located at the bottom, forming a support at the bottom. With the change of position of the steel pipe, it can be transported in a stable state.

[0043] For example, such as Figure 1 As shown, both the conveyor wheel 8-2 and the rolling wheel 8-4 are rubber-structured wheels with high friction.

[0044] In some examples, the friction between the conveyor wheel 8-2 and the rolling wheel 8-4 can be increased by using a rubber-structured wheel, thereby improving the conveying stability.

[0045] For example, such as Figure 2 As shown, the slot 8-1 and the conveyor wheel 8-2 are distributed in a cross shape with opposite points.

[0046] In some examples, a cross-shaped distribution of points can simultaneously support the steel pipe on both sides and at both ends, preventing the steel pipe from tilting.

[0047] For example, such as Figure 5 As shown, a sealing protrusion 9 is provided around the inner surface of one end of the central tube 6, and the sealing protrusion 9 is slidably embedded in the cavity cover 7-2.

[0048] In some examples, the sealing performance of the central tube 6 and the cavity cover 7-2, as well as the stability during rotation, are improved by adding a sealing protrusion 9.

[0049] In actual use: Place the steel pipe to be coated on the conveyor wheel 8-2 and rolling wheel 8-4 inside the circular opening 4. Start the motor controlling the conveyor wheel 8-2 to move the steel pipe to a suitable position inside the equipment. Turn on the spray pump 3. The paint enters the central pipe 6 through the conveyor pipe 7-1 and then sprays the inner wall of the steel pipe through the inner spray pipe 7-3. At the same time, drive the motor 7-4 to rotate, and drive the cavity cover 7-2 to rotate through the belt drive, so that the inner spray pipe 7-3 sprays more evenly. At the bottom of the equipment frame 1, the paint enters the outer spray pipe 7-9 through the outer ring frame 7-8 to spray the outer pipe wall. During the spraying process, the first ultraviolet lamp plate 7-7 and the second ultraviolet lamp plate 7-10 respectively pre-cur the paint on the inner and outer walls of the steel pipe. After the spraying is completed, start the motor of the conveyor wheel 8-2 again to send the coated steel pipe out of the equipment.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A steel pipe inner and outer coating apparatus characterized by comprising: include: The equipment rack (1), the material box (2), and the spray pump (3) are provided. The material box (2) is located outside the equipment rack (1), and the spray pump (3) is located on the material box (2). A pair of circular openings (4) and a supporting moving assembly (8) are provided, wherein the circular openings (4) are opened on both sides of the equipment rack (1) and the supporting moving assembly (8) is disposed in the equipment rack (1); The equipment includes a fixed frame (5), a central tube (6), and a spraying assembly (7). The fixed frame (5) is disposed on the side surface of the equipment frame (1), the central tube (6) is fixed inside the fixed frame (5), and the spraying assembly (7) is disposed on the central tube (6). The spraying assembly (7) includes a delivery pipe (7-1), which is connected inside the central tube (6). One end of the delivery pipe is connected to the output end of the spraying pump (3). A cavity cover (7-2) is rotatably and sealed inside one end of the central tube (6). Several inner spraying pipes (7-3) are arranged around the surface of the cavity cover (7-2).

2. The steel pipe internal and external coating equipment according to claim 1, characterized in that, A drive motor (7-4) is fixed on the central tube (6), and a transmission frame (7-5) is arranged around the side surface of the cavity cover (7-2). Both the transmission frame (7-5) and the output end of the drive motor (7-4) are provided with transmission wheels (7-6).

3. The steel pipe internal and external coating equipment according to claim 2, characterized in that, The transmission wheels (7-6) are connected by belt drive. Several first ultraviolet lamp plates (7-7) are fixed on the transmission frame (7-5). An outer ring frame (7-8) is fixed at the bottom of the equipment frame (1). The outer ring frame (7-8) has a hollow structure inside.

4. The steel pipe internal and external coating equipment according to claim 3, characterized in that, A number of external spraying pipes (7-9) are installed around the inner surface of the outer ring frame (7-8), and a number of second ultraviolet lamp plates (7-10) are arranged around the side surface of the outer ring frame (7-8).

5. The steel pipe internal and external coating equipment according to claim 1, characterized in that, The supporting moving component (8) includes several slots (8-1), which are evenly opened around the circular opening (4). Each slot (8-1) is rotatably connected to a conveying wheel (8-2), and the conveying wheel (8-2) at the bottom of one side of the circular opening (4) is rotated by a motor.

6. The steel pipe internal and external coating equipment according to claim 5, characterized in that, The bottom of the equipment frame (1) is provided with a base frame (8-3), and a number of rolling wheels (8-4) are installed on the base frame (8-3). The height of the rolling wheels (8-4) is the same as the height of the conveyor wheel (8-2) located at the bottom.

7. The steel pipe internal and external coating equipment according to claim 6, characterized in that, Both the conveyor wheel (8-2) and the rolling wheel (8-4) have surfaces made of rubber with high friction.

8. The steel pipe internal and external coating equipment according to claim 5, characterized in that, The slot (8-1) and the conveyor wheel (8-2) are distributed in a cross shape with opposite points.

9. The steel pipe internal and external coating equipment according to claim 1, characterized in that, A sealing protrusion (9) is provided around the inner surface of one end of the central tube (6), and the sealing protrusion (9) is slidably embedded in the cavity cover (7-2).

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