Surface treatment device for spheroidal graphite cast pipe for water supply

Abstract

A surface treatment device for a ductile iron pipe for water supply comprises a rotary supporting assembly, a surface spraying assembly and an auxiliary curing assembly. The rotary supporting assembly comprises a rotary supporting clamp, and the rotary supporting clamp is used for clamping the two ends of the spheroidal graphite cast pipe and driving the spheroidal graphite cast pipe to rotate; the surface spraying assembly comprises a spraying mechanism, and the spraying mechanism is used for moving left and right in the axial direction of the spheroidal graphite cast pipe and spraying a protective coating on the surface of the rotating spheroidal graphite cast pipe; the auxiliary curing assembly comprises an arc-shaped panel, a position adjusting assembly and a height adjusting assembly, the arc-shaped panel extends in the axial direction of the spheroidal graphite cast pipe, an arc-shaped opening of the arc-shaped panel faces the spheroidal graphite cast pipe, and the arc-shaped panel is used for providing heat radiation or light radiation for a coating on the surface of the spheroidal graphite cast pipe; the position adjusting assembly is used for adjusting the front-back position of the arc-shaped panel relative to the spheroidal graphite cast pipe so that an arc-shaped opening of the arc-shaped panel can be aligned with the spheroidal graphite cast pipe below the spheroidal graphite cast pipe, and the height adjusting assembly is used for adjusting the height of the arc-shaped panel.

Description

Technical Field

[0001] This utility model relates to the technical field of ductile iron pipe surface treatment device, specifically a ductile iron pipe surface treatment device for water supply. Background Technology

[0002] When ductile iron pipes are used as water supply pipes, they may encounter highly corrosive soils, such as swampy soils, muddy soils, sulfate-containing soils, garbage soils, and soils contaminated by drainage. Therefore, the outer surface of the pipes in contact with the soil must be treated with anti-corrosion measures. The most common treatment method is to spray a protective coating.

[0003] The current practice for spraying a protective coating onto the outer surface of the aforementioned ductile iron pipes for water supply involves using a rotating support clamp to hold and rotate the ductile iron pipe while the spraying mechanism moves along the axial direction of the pipe. This allows a protective coating to be sprayed onto the rotating surface of the ductile iron pipe. However, this method has a drawback: the protective coating on the outer surface of ductile iron pipes is generally a chemical coating, which requires a certain amount of time to cure naturally. If the ductile iron pipe is removed from the rotating support clamp before the coating has fully cured, the lifting equipment used may damage the coating on the surface of the ductile iron pipe. To avoid this damage, a long waiting time is often required, which affects the efficiency of the operation. Utility Model Content

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a surface treatment device for ductile iron pipes used in water supply. Through measures such as online assisted curing and multi-station spraying operations, it can significantly shorten the waiting time for surface spraying treatment of ductile iron pipes, especially the chemical curing time, and improve work efficiency.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A surface treatment device for ductile iron pipes for water supply includes a rotating support assembly, a surface spraying assembly, and an auxiliary curing assembly;

[0009] The rotary support assembly includes a rotary support clamp, which is used to clamp both ends of the ductile iron pipe and drive the ductile iron pipe to rotate.

[0010] The surface coating assembly includes a coating mechanism, which is used to move left and right along the axial direction of the ductile iron pipe and coat the surface of the rotating ductile iron pipe with a protective coating.

[0011] The auxiliary curing component includes an arc-shaped panel, a position adjustment component, and a height adjustment component. The arc-shaped panel extends along the axial direction of the ductile iron pipe and its arc-shaped opening faces the ductile iron pipe, providing thermal or optical radiation to the coating on the surface of the ductile iron pipe. The position adjustment component is used to adjust the front-rear position of the arc-shaped panel relative to the ductile iron pipe so that the arc-shaped opening of the arc-shaped panel is aligned with the ductile iron pipe below it. The height adjustment component is used to adjust the height of the arc-shaped panel.

[0012] The surface treatment device for ductile iron pipes for water supply described above may further include a rotating support clamp comprising an active side clamp and a driven side clamp, both of which are mounted on a support column, and at least one of the support columns is capable of moving left and right along the axial direction of the ductile iron pipe.

[0013] The surface treatment device for ductile iron pipes for water supply described above can be further characterized in that the supporting columns on both sides can move left and right along the axial direction of the ductile iron pipe.

[0014] The surface treatment device for ductile iron pipes for water supply described above can be further characterized in that the active side clamp and the driven side clamp are point-type clamps, which clamp the ductile iron pipe by inserting the point into the holes at both ends of the ductile iron pipe.

[0015] The surface treatment device for ductile iron pipes for water supply described above may further include a surface spraying assembly comprising a crossbeam, wherein the spraying mechanism is disposed on the crossbeam and moves left and right along the crossbeam.

[0016] The surface treatment device for ductile iron pipes for water supply described above may further include a surface spraying assembly that includes a longitudinal beam, wherein the crossbeam is disposed on the longitudinal beam and moves back and forth along the longitudinal beam.

[0017] The surface treatment device for ductile iron pipes for water supply described above may further be provided in that the inner surface of the arc-shaped panel is an electrically heated surface, used to provide heat radiation to the coating on the surface of the ductile iron pipe.

[0018] The surface treatment device for ductile iron pipes for water supply described above may further be provided in that the inner surface of the arc-shaped panel is a curing light source for providing light radiation to the coating on the surface of the ductile iron pipe.

[0019] The surface treatment device for ductile iron pipes for water supply described above can be further characterized in that the arc-shaped panel is designed to conform to the dimensional changes of the ductile iron pipe in the axial direction.

[0020] The surface treatment device for ductile iron pipes for water supply described above can be further characterized in that the position adjustment component is a mobile trolley with a ground rail, and the height adjustment component is mounted on the mobile trolley.

[0021] Beneficial effects

[0022] Compared with existing technologies, the surface treatment device for ductile iron pipes for water supply provided by this utility model can significantly shorten the waiting time, especially the chemical curing time, of the surface spraying treatment of ductile iron pipes and improve work efficiency through measures such as online assisted curing and multi-station spraying operations. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of an arc-shaped panel of the device of this utility model;

[0025] Figure 3 This is a schematic diagram of another arc-shaped panel of the present invention.

[0026] The components represented by the various reference numerals in the diagram are:

[0027] Rotary support assembly 10; active side clamp 11; driven side clamp 12; support column 13; transverse track 14; rotary drive motor 15.

[0028] Surface coating assembly 20; coating mechanism 21; crossbeam 22; longitudinal beam 23.

[0029] Auxiliary curing component 30; curved panel 31; position adjustment component 32; height adjustment component 33.

[0030] 40 ductile iron pipe. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] like Figure 1 As shown, this embodiment provides a surface treatment device for ductile iron pipes for water supply, including a rotating support assembly 10, a surface spraying assembly 20, and an auxiliary curing assembly 30.

[0034] First, the rotating support assembly 10 includes a rotating support clamp, which is used to clamp both ends of the ductile iron pipe 40 and drive the ductile iron pipe 40 to rotate.

[0035] Specifically, the rotary support clamp includes an active side clamp 11 and a driven side clamp 12, both of which are mounted on the support column 13.

[0036] In this embodiment, both the active side clamp 11 and the driven side clamp 12 are selected as center-type clamps, which are a type of clamp in the prior art. The center can be inserted into the holes at both ends of the ductile iron pipe 40 to clamp the ductile iron pipe 40, thereby ensuring that the clamp does not come into contact with the outer surface of the ductile iron pipe 40 and does not affect the spraying treatment of the outer surface of the ductile iron pipe 40.

[0037] After the outer surface of the ductile iron pipe 40 is coated, in order to facilitate the release of the ductile iron pipe 40 by the center-type clamp and thus smoothly lift the ductile iron pipe 40 away, this utility model preferably allows the supporting columns 13 on both sides to move left and right along the axial direction of the ductile iron pipe 40. This left and right movement can, for example, be coordinated with... Figure 1 The transverse track 14 shown is used for guidance, and its motion driving method can be selected from mature means in the prior art, such as, but not limited to, drive wheel drive, screw drive, etc. This is not an improvement point of this utility model and will not be described in detail.

[0038] Of course, as an alternative variation, it is also possible to move only one side of the support column 13 left and right as described above.

[0039] See also Figure 1 The surface coating assembly 20 includes a coating mechanism 21, which is used to move left and right along the axial direction of the ductile iron pipe 40 and to coat the surface of the rotating ductile iron pipe 40 with a protective coating.

[0040] Further as Figure 1 As shown, the surface coating assembly 20 of this embodiment includes a crossbeam 22, and the coating mechanism 21 is disposed on the crossbeam 22 and moves left and right along the crossbeam 22.

[0041] Although the figure illustrates the use of a motor-screw mechanism to drive the spraying mechanism 21 to move left and right along the crossbeam 22, it is not limited to this. Other linear motion drive mechanisms in the prior art can also be selected to enable the spraying mechanism 21 to move left and right along the crossbeam 22.

[0042] Further as Figure 1 As shown, in this embodiment, the surface coating assembly 20 further includes a longitudinal beam 23, and the crossbeam 22 is disposed on the longitudinal beam 23 and moves back and forth along the longitudinal beam 23.

[0043] Specifically, such as Figure 1As shown, the longitudinal beam 23 is positioned perpendicular to the transverse beam 22 on both sides above the entire rotating support assembly 10. In this embodiment, the longitudinal beam 23 is constructed as a track beam structure, and the transverse beam 22 moves back and forth within the track beam via upper traveling wheels. However, similarly, the transverse beam 22 can also be moved back and forth along the longitudinal beam 23 by other types of linear motion drive mechanisms in the prior art. The example in this embodiment should not be construed as limiting the scope of this utility model.

[0044] The aforementioned arrangement of the crossbeam 22 on the longitudinal beam 23 and its movement along the longitudinal beam 23 is an improvement of this utility model. This improvement allows the crossbeam 22 and its spraying mechanism 21 to move along the longitudinal beam 23 between different workstations, improving work efficiency. While the ductile iron pipe 40 on one of the rotating support components 10 (such as the rotating support component 10 shown in the figure) is being coated and waiting for the coating to cure, the crossbeam 22 and its spraying mechanism 21 can be moved to another rotating support component 10 (such as the one adjacent to the rotating support component 10 shown in the figure) to perform surface coating on the ductile iron pipe 40 on the other rotating support component 10. Even in single-station operation, this at least avoids interference during the hoisting of the ductile iron pipe 40.

[0045] The most important improvement of this utility model is, for example Figure 1 As shown, in this embodiment, an auxiliary curing component 30 is provided below the ductile iron pipe 40.

[0046] Specifically, in this embodiment, the auxiliary curing component 30 includes an arc-shaped panel 31, a position adjustment component 32, and a height adjustment component 33. The arc-shaped panel 31 extends along the axial direction of the ductile iron pipe 40 and its arc-shaped opening faces the ductile iron pipe 40.

[0047] In this embodiment, the coating on the surface of the ductile iron pipe 40 is set to a dry-curing type. Based on this, the arc-shaped panel 31 is used to provide heat radiation to the coating on the surface of the ductile iron pipe 40, such as... Figure 2 As shown, the inner surface of the arc-shaped panel 31 is an electrically heated surface, used to provide heat radiation to the coating on the surface of the ductile iron pipe 40. This can directly adopt the curved electric heating plate in the prior art. The difference is that in this embodiment, the arc-shaped panel 31 is dimensionally contoured according to the diameter change of the ductile iron pipe 40 in the axial direction, so that it can be as close as possible to the outer surface of the ductile iron pipe 40, just like... Figure 1The ductile iron pipe 40 shown has a spigot end and a socket end. The spigot end is the equal diameter section on the left, and the socket end is the section on the right. The diameter of the end gradually increases in the axial direction. Correspondingly, the right side of the arc-shaped panel 31 is also designed to gradually increase in diameter according to the diameter trend of the socket end of the ductile iron pipe 40, so that it can be as close as possible to the outer surface of the ductile iron pipe 40.

[0048] The position adjustment component 32 is used to adjust the front-rear position of the arc-shaped panel 31 relative to the ductile iron pipe 40 so that the arc-shaped opening of the arc-shaped panel 31 is aligned with the ductile iron pipe 40 below it. Specifically, in this embodiment, as shown... Figure 1 As shown, the position adjustment component 32 is a mobile trolley with a ground track.

[0049] By using a moving trolley with a ground track to adjust the front and rear position of the arc panel 31 relative to the ductile iron pipe 40, the arc panel 31 can avoid the spraying station when the spraying mechanism 21 is spraying the surface of the ductile iron pipe 40. After the surface spraying is completed, it can be moved to the bottom of the ductile iron pipe 40 and aligned with it, thus preventing the dripping paint from falling into the arc panel 31.

[0050] The height adjustment component 33 is used to adjust the height of the arc-shaped panel 31 so that the arc-shaped panel 31 is closer to or further away from the outer surface of the ductile iron pipe 40, avoiding mechanical interference during the spraying operation. In this embodiment, the height adjustment component 33 is a lifting cylinder or an electric push cylinder, which is mounted on the moving trolley.

[0051] Thanks to the use of the auxiliary curing component 30, the inner electrically heated surface of the arc panel 31 can promote the rapid curing of the dry curing coating on the surface of the ductile iron pipe 40, which can significantly shorten the waiting time for the ductile iron pipe surface spraying treatment and improve work efficiency.

[0052] Example 2

[0053] The difference between this embodiment and Embodiment 1 is that the coating on the surface of the ductile iron pipe 40 is set to be photocurable. Based on this, the curved panel 31 is used to provide light radiation to the coating on the surface of the ductile iron pipe 40, such as... Figure 3 As shown, the inner surface of the arc-shaped panel 31 is a curing light source used to provide light radiation to the coating on the surface of the ductile iron pipe 40. This can be a dot matrix light source in the prior art or a planar light source. The light source type can be ultraviolet light or other light sources that can promote the rapid curing of photocurable adhesives.

[0054] Similarly, thanks to the use of the auxiliary curing component 30, the curing light source on the inner side of the arc panel 31 can promote the rapid curing of the light-curing coating on the surface of the ductile iron pipe 40, which can significantly shorten the waiting time for the ductile iron pipe surface spraying treatment and improve work efficiency.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for nodular cast pipe for water supply, characterized by, The rotating support assembly (10), the surface spraying assembly (20) and the auxiliary curing assembly (30); The rotating support assembly (10) comprises a rotating support clamp for clamping both ends of the ductile cast pipe (40) and rotating the ductile cast pipe (40). The surface spraying assembly (20) comprises a spraying mechanism (21) for moving left and right along the axial direction of the ductile cast pipe (40) and spraying a protective coating on the surface of the rotating ductile cast pipe (40). The auxiliary curing assembly (30) comprises an arc-shaped panel (31) extending along the axial direction of the ductile cast pipe (40) and having an arc-shaped opening facing the ductile cast pipe (40) for providing heat radiation or light radiation to the coating on the surface of the ductile cast pipe (40), a position adjusting assembly (32) for adjusting the front and back positions of the arc-shaped panel (31) relative to the ductile cast pipe (40) so that the arc-shaped opening of the arc-shaped panel (31) is aligned with the ductile cast pipe (40) below, and a height adjusting assembly (33) for adjusting the height of the arc-shaped panel (31).

2. The ductile cast iron pipe surface treatment apparatus for water supply according to claim 1, characterized by The rotating support clamp comprises a driving side clamp (11) and a driven side clamp (12), both of which are arranged on a support column (13), and at least one of the support columns (13) can move left and right along the axial direction of the ductile cast pipe (40).

3. The ductile cast iron pipe surface treatment apparatus for water supply according to claim 2, characterized by Both of the support columns (13) can move left and right along the axial direction of the ductile cast pipe (40).

4. The ductile cast iron pipe surface treatment apparatus for water supply according to claim 2, characterized by The driving side clamp (11) and the driven side clamp (12) are center clamps, which clamp the ductile cast pipe (40) by extending a center into the hole at both ends of the ductile cast pipe (40).

5. The ductile cast iron pipe surface treatment apparatus for water supply according to claim 1, characterized by The surface spraying assembly (20) comprises a cross beam (22), and the spraying mechanism (21) is arranged on the cross beam (22) and moves left and right along the cross beam (22).

6. The ductile cast iron pipe surface treatment apparatus for water supply according to claim 5, characterized by The surface spraying assembly (20) further comprises a longitudinal beam (23), and the cross beam (22) is arranged on the longitudinal beam (23) and moves forward and backward along the longitudinal beam (23).

7. The ductile cast iron pipe surface treatment apparatus for water supply according to claim 1, characterized by The inner side surface of the arc-shaped panel (31) is an electric heating surface for providing heat radiation to the coating on the surface of the ductile cast pipe (40).

8. The ductile cast iron pipe surface treatment apparatus for water supply according to claim 1, characterized by The inner side surface of the arc-shaped panel (31) is a curing light source for providing light radiation to the coating on the surface of the ductile cast pipe (40).

9. The ductile cast iron pipe surface treatment apparatus for water supply according to any one of claims 1, 7 or 8, characterized by The arc-shaped panel (31) is designed in size according to the diameter change of the ductile cast pipe (40) in the axial direction.

10. The ductile cast iron pipe surface treatment apparatus for water supply according to any one of claims 1, 7 or 8, characterized by, The position adjusting assembly (32) is a mobile trolley with a track, and the height adjusting assembly (33) is arranged on the mobile trolley.

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