Automatic positioning device for spraying bell and spigot outside ductile iron pipe body

Abstract

The invention provides a spheroidal graphite cast pipe body outer spraying bell and spigot automatic positioning device which comprises a rail, a spraying trolley, a pipeline and a power mechanism, the spraying trolley is placed on the rail and can walk on the rail, the pipeline is arranged below the spraying trolley, the power mechanism comprises a traveling motor arranged in the spraying trolley, and the traveling motor is connected with the spraying trolley. The output end of the advancing motor is connected with a belt, the belt is connected with a frame arranged on the lower portion of the spraying trolley, wheels and a positioning mechanism which are placed in a track are installed on the frame, and the positioning mechanism comprises a first laser device and a second laser device which are arranged in the spraying trolley; the device has the advantages that not only can the outer part of the pipe body of the spheroidal graphite cast pipe be sprayed, but also the position of the bell and spigot can be accurately positioned, and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of external spraying of ductile iron pipes, and in particular to an automatic positioning device for a socket and spigot of an external spraying of a ductile iron pipe body. Background Art

[0002] In the production process of ductile iron pipes, after the molten iron is cast by a centrifuge, it will be annealed, cleaned, zinc-sprayed, lined, cured and ground, and then the pipe body will be painted externally, marked and put into storage. The process of painting the pipe body is also called external spraying. In order to achieve uniformity when spraying the pipe body, the rotation of the pipe is usually driven by a supporting wheel, and the supporting wheel is mostly conical, the purpose is to reduce the contact surface between the supporting wheel and the pipe body. This is to reduce the irregular paint ring formed by the supporting wheel rolling the paint on the part of the pipe body that contacts the paint during external spraying.

[0003] However, even so, due to the lack of precise control devices for the positioning of the sockets and spigots during spraying, the appearance of the pipe body may be crushed by the supporting wheel, and the positioning may be inaccurate, resulting in uneven paint rings on the appearance of the pipe body, spraying on the lining and other quality problems. This results in repeated waste of resources due to re-polishing in the previous process, and even waste of products. Summary of the invention

[0004] In view of this, the present invention provides an automatic positioning device for the socket of the external spraying of the ductile iron pipe body, which can not only realize the spraying of the external body of the ductile iron pipe, but also accurately locate the position of the socket to avoid waste of resources.

[0005] In order to solve the above technical problems, the present invention provides an automatic positioning device for the external spraying socket of a ductile iron pipe body, comprising a track; a spraying trolley, the spraying trolley is placed on the track and can travel on the track; a pipeline, the pipeline is arranged below the spraying trolley; a power mechanism, the power mechanism comprises a traveling motor arranged inside the spraying trolley, the output end of the traveling motor is connected to a belt, the belt is connected to a frame arranged at the bottom of the spraying trolley, and the frame is equipped with wheels placed in the track; a positioning mechanism, the positioning mechanism comprises a first A laser and a second laser, wherein the first laser and the second laser are spaced apart from each other, and laser heads are disposed at the lower ends of the first laser and the second laser; a spraying mechanism, wherein the spraying mechanism comprises a sprayer disposed inside the spraying trolley, wherein the sprayer is disposed between the first laser and the second laser, and a spray head is disposed at the lower end of the sprayer; a cleaning mechanism, wherein the cleaning mechanism comprises a cleaning motor disposed inside the spraying trolley, wherein a rotating rod is connected to the output end of the cleaning motor, a rotating plate is connected to the lower end of the rotating rod, and a wiping pad is disposed on the rotating plate.

[0006] Furthermore, the spraying vehicle is a hollow shell structure, and a frame is fixedly connected to the lower end.

[0007] Furthermore, the frame is connected to a horizontal rod via a bearing, and wheels are fixedly mounted on both ends of the horizontal rod.

[0008] Furthermore, a gear is fixedly mounted on the horizontal rod, a gear is arranged on the output end of the traveling motor, the two gears are connected by a belt with teeth, and the traveling motor drives the spraying trolley forward or backward.

[0009] Furthermore, the setting directions of the first laser and the second laser are consistent with the traveling mode of the spraying vehicle.

[0010] Further, the spacing distance between the first laser and the second laser is twice the length of the socket.

[0011] Furthermore, the sprayer is fixed inside the spraying trolley, the lower end of the sprayer is connected to the spray head through a pipeline, the spray head is arranged below the spraying trolley and faces downward, and the sprayer is connected to the pump body through a hose.

[0012] Furthermore, the cleaning motor is fixed inside the spraying vehicle, and the output end of the cleaning motor faces downward and is fixedly connected to the rotating rod.

[0013] Furthermore, the lower end of the rotating rod is fixedly connected to a horizontally arranged rotating plate by means of bolts, and a wiping pad is fixedly arranged on the upper end surface of the rotating plate.

[0014] Furthermore, the wiping pad is a sponge and is used for wiping the laser head.

[0015] The beneficial effects of the above technical solution of the present invention are as follows:

[0016] 1. Due to the automatic positioning of the socket and the effective spray angle, there is a safety zone of about 50mm from the edge of the pipe body. After spraying, there are 50mm areas at both ends of the pipe body that are not sprayed with paint, thus successfully avoiding the appearance quality problem caused by the roller rolling the paint, and reserving sufficient repair space for the subsequent process, effectively solving the serious quality problem of paint spraying on the lining.

[0017] 2. Automatic control positioning frees members from manual operation, reduces labor intensity, greatly improves process product quality and standardizes the technological process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 for Figure 1 axonometric drawing;

[0021] Figure 3 for Figure 2 The schematic diagram of the internal structure without the roof of the spraying trolley;

[0022] Figure 4 for Figure 3 A magnified view of middle;

[0023] Figure 5 for Figure 1 A schematic diagram of the structure from another perspective;

[0024] Figure 6 for Figure 5 Enlarged view of middle B;

[0025] In the figure: 1. track; 2. spraying trolley; 3. pipeline; 4. socket; 5. wheel; 6. frame; 7. belt; 8. gear; 9. travel motor; 10. first laser; 11. second laser; 12. sprayer; 13. cleaning motor A; 14. cleaning motor B; 15. laser head; 16. rotating rod; 17. wiping pad; 18. nozzle; 19. rotating plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] It should be noted that the main idea of ​​the present invention is that due to the automatic positioning of the socket and the effective spray angle, there is a safety zone of about 50mm from the edge of the pipe body. After the spraying is completed, an area of ​​50mm at each end of the pipe body is not sprayed with paint, thereby successfully avoiding the appearance quality problem caused by the roller crushing the paint, reserving sufficient repair space for the subsequent process, and effectively solving the serious quality problem of paint spraying onto the lining. Automatic control positioning saves members from manual operation, reduces labor intensity, and greatly improves the process product quality and standardizes the process flow.

[0028] After introducing the basic principle of the present invention, various non-limiting embodiments of the present invention are described in detail below. The number of any element in the drawings is for illustration and not for limitation, and any naming is only for distinction and does not have any limiting meaning.

[0029] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0030] like Figure 1-6 As shown: an automatic positioning device for the external spraying socket of a ductile iron pipe body, comprising a track 1; a spraying trolley 2, the spraying trolley 2 is placed on the track 1 and can travel on the track 1; a pipeline 3, the pipeline 3 is arranged below the spraying trolley 2; a power mechanism, the power mechanism comprises a travel motor 9 arranged inside the spraying trolley 2, the output end of the travel motor 9 is connected to a belt 7, the belt 7 is connected to a frame 6 arranged at the lower part of the spraying trolley 2, and the frame 6 is equipped with a wheel 5 placed in the track 1; a positioning mechanism, the positioning mechanism comprises a first laser 10 and a second laser 11 arranged in the spraying trolley 2, the The first laser 10 and the second laser 11 are arranged at intervals, and the lower ends of the first laser 10 and the second laser 11 are both provided with laser heads 15; a spraying mechanism, the spraying mechanism includes a sprayer 12 arranged inside the spraying trolley 2, the sprayer 12 is arranged at a position between the first laser 10 and the second laser 11, and the lower end of the sprayer 12 is provided with a nozzle 18; a cleaning mechanism, the cleaning structure includes a cleaning motor arranged inside the spraying trolley 2, the output end of the cleaning motor is connected to a rotating rod 16, the lower end of the rotating rod 16 is connected to a rotating plate 19, and a wiping pad 17 is provided on the rotating plate 19.

[0031] In this embodiment, the track 1 provides a route for the spraying trolley 2 to move forward or backward along the predetermined track 1. The spraying trolley 2 is placed on the track 1, and a power mechanism is arranged inside the spraying trolley 2, including a travel motor 9, a belt 7, etc. A frame 6 is arranged at the lower end of the spraying trolley 2, and wheels 5 are fixedly installed at both ends of the frame 6. A positioning mechanism is also included, in which the first laser 10 and the second laser 11 in the positioning mechanism are respectively used to identify the ports of the pipeline 3, and a spacing distance is set between the first laser 10 and the second laser 11, and a laser head 15 is installed on both the first laser 10 and the second laser 11, and a sprayer 12 is arranged between the first laser 10 and the second laser 11, and the sprayer 12 sprays the pipeline 3 through the nozzle 18. A cleaning mechanism is also provided, which includes a cleaning motor, and the cleaning motor includes a cleaning motor A13 and a cleaning motor B14. The cleaning motor A13 is used to clean the first laser 10, and the cleaning motor B14 is used to clean the second laser 11. A rotating rod 16 is provided on the cleaning motor, and a rotating plate 19 is provided on the rotating rod 16. A wiping pad 17 is provided on the rotating plate 19. The laser head 15 can be cleaned by the wiping pad 17 to avoid the influence of the paint on the laser head 15.

[0032] The spraying trolley 2 is a hollow shell structure, with a frame 6 fixedly connected to the lower end. The frame 6 is connected to a horizontal rod through a bearing, and wheels 5 are fixedly installed at both ends of the horizontal rod.

[0033] In this embodiment, the spraying vehicle 2 is a hollow shell structure, the lower end of which is fixedly connected to a frame 6, on which a bearing is installed, and a horizontal rod is connected to the bearing. The two ends of the horizontal rod are wheels 5, and the horizontal rod is driven to rotate by a travel motor 9 and a belt 7.

[0034] A gear 8 is fixedly mounted on the horizontal rod, and a gear 8 is arranged on the output end of the travel motor 9. The two gears 8 are connected by a belt 7 with teeth, and the travel motor 9 drives the spraying trolley 2 forward or backward.

[0035] In this embodiment, the inner side of the belt 7 is provided with teeth, which mesh with the gear 8 to realize the rotation of the gear 8 and drive the horizontal rod to rotate.

[0036] The first laser 10 and the second laser 11 are arranged in a direction consistent with the travel mode of the spraying vehicle 2 , and the spacing distance is twice the length of the socket 4 .

[0037] In this embodiment, the first laser 10 and the second laser 11 are on the same straight line and consistent with the travel direction of the spraying vehicle 2. This design can effectively monitor the position of the nozzle.

[0038] The sprayer 12 is fixed inside the spraying trolley 2, and the lower end of the sprayer 12 is connected to the nozzle 18 through the pipe 3. The nozzle 18 is arranged below the spraying trolley 2 and faces downward. The sprayer 12 is connected to the pump body through a hose.

[0039] In this embodiment, the sprayer 12 is connected to a pump body through a hose and provides spray paint to the spray head 18 .

[0040] The cleaning motor is fixed inside the spraying trolley 2, with the output end of the cleaning motor facing downward and fixedly connected to the rotating rod 16. The lower end of the rotating rod 16 is fixedly connected to the horizontally arranged rotating plate 19 by bolts. The upper end surface of the rotating plate 19 is fixedly provided with a wiping pad 17, which is a sponge and is used to wipe the laser head 15.

[0041] In this embodiment, since the spray paint splashes during the spraying process, in order to prevent the laser head 15 from being covered and affecting the subsequent monitoring effect, a cleaning motor is arranged in the spraying cart 2. The cleaning motor drives the rotating rod 16 to rotate. The rotating rod 16 is fixedly connected to the rotating plate 19, thereby driving the rotating plate 19 to rotate in the horizontal direction. A sponge wiping pad 17 is arranged on the rotating plate 19, which can wipe the laser head 15 while rotating.

[0042] Working method (or working principle) of the present invention:

[0043] When the present technology is working, the first laser 10 and the second laser 11 are used to prepare and start the sprayer 12 respectively. When spraying the tube body, when the spraying trolley 2 starts to move forward, the first laser 10 triggers the control program first, and when the second laser 11 detects that it has entered the tube body area, the nozzle automatically opens to start spraying. The spraying trolley 2 continues to move, and when the first laser 10 detects that it has left the tube body area, the nozzle automatically closes and stops spraying.

[0044] By providing a cleaning mechanism, the laser head 15 can be wiped and cleaned, thereby preventing the laser head 15 from being covered during the spraying process and affecting the detection effect.

[0045] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0046] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. An automatic positioning device for the external spraying socket of a ductile iron pipe, characterized in that: The invention comprises a track (1); a spraying trolley (2), the spraying trolley (2) being placed on the track (1) and being capable of moving on the track (1); a pipeline (3), the pipeline (3) being arranged below the spraying trolley (2); a power mechanism, the power mechanism comprising a traveling motor (9) arranged inside the spraying trolley (2), the output end of the traveling motor (9) being connected to a belt (7), the belt (7) being connected to a frame (6) arranged at the bottom of the spraying trolley (2), the frame (6) being provided with wheels (5) placed inside the track (1); and a positioning mechanism, the positioning mechanism comprising a first laser (10) and a second laser (11) arranged inside the spraying trolley (2), the first laser (10) and the second laser (11) being arranged at the bottom of the spraying trolley (2). The first laser (10) and the second laser (11) are arranged at intervals, and the lower ends of the first laser (10) and the second laser (11) are both provided with laser heads (15); a spraying mechanism, the spraying mechanism comprises a sprayer (12) arranged inside the spraying trolley (2), the sprayer (12) is arranged at a position between the first laser (10) and the second laser (11), and the lower end of the sprayer (12) is provided with a nozzle (18); a cleaning mechanism, the cleaning structure comprises a cleaning motor arranged inside the spraying trolley (2), the output end of the cleaning motor is connected to a rotating rod (16), the lower end of the rotating rod (16) is connected to a rotating plate (19), and a wiping pad (17) is provided on the rotating plate (19).

2. The automatic positioning device for the external spraying socket of a ductile iron pipe according to claim 1 is characterized in that: The spraying vehicle (2) is a hollow shell structure, and a vehicle frame (6) is fixedly connected to the lower end.

3. An automatic positioning device for the external spray-coated socket of a ductile iron pipe according to claim 2: the frame (6) is connected to a horizontal rod via a bearing, and wheels (5) are fixedly mounted at both ends of the horizontal rod.

4. The automatic positioning device for the external spray-coated socket of a ductile iron pipe according to claim 2 or 3, characterized in that: A gear (8) is fixedly mounted on the horizontal rod, and a gear (8) is arranged on the output end of the travel motor (9). The two gears (8) are connected via a belt (7) with teeth, and the travel motor (9) drives the spraying trolley (2) to move forward or backward.

5. The automatic positioning device for the external spraying socket of a ductile iron pipe according to claim 4 is characterized by: The arrangement directions of the first laser (10) and the second laser (11) are consistent with the travel mode of the spraying vehicle (2).

6. The automatic positioning device for the external spray-coated socket of a ductile iron pipe according to claim 5, characterized in that: The spacing distance between the first laser (10) and the second laser (11) is twice the length of the socket (4).

7. The automatic positioning device for the external spray-coated socket of a ductile iron pipe according to claim 5, characterized in that: The sprayer (12) is fixed inside the spraying trolley (2), the lower end of the sprayer (12) is connected to the spray head (18) through a pipe (3), the spray head (18) is arranged below the spraying trolley (2) and faces downward, and the sprayer (12) is connected to the pump body through a hose.

8. The automatic positioning device for the external spray-coated socket of a ductile iron pipe according to claim 7, characterized in that: The cleaning motor is fixed inside the spraying vehicle (2), the output end of the cleaning motor faces downward and is fixedly connected to the rotating rod (16).

9. The automatic positioning device for the external spray-coated socket of a ductile iron pipe according to claim 8, characterized in that: The lower end of the rotating rod (16) is fixedly connected to a horizontally arranged rotating plate (19) by means of bolts, and a wiping pad (17) is fixedly arranged on the upper end surface of the rotating plate (19).

10. The automatic positioning device for the external spray-coated socket of a ductile iron pipe according to claim 9, characterized in that: The wiping pad (17) is a sponge and is used for wiping the laser head (15).

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