A cylindrical material outer surface spraying device

Abstract

The utility model provides a kind of columnar material outer surface spraying device, belong to material spraying technical field, including support, it is linearly slid and placed in the side of rotating workpiece, support sliding track and workpiece axis are mutually parallel;Spray gun, it is fixed on support by adjusting mechanism, when support slides, spray gun can be driven along workpiece axis direction sliding by adjusting mechanism, adjusting mechanism is used to adjust the interval between spray gun and workpiece outer side wall or adjust the relative angle between spray gun and workpiece outer side wall;The utility model can adjust the interval between spray gun and workpiece outer side wall, so it can be suitable for the outer surface of columnar material of different diameters is carried out spraying operation, so it can improve the practicability and applicability of spraying device.

Description

Technical Field

[0001] This utility model relates to the technical field of material spraying equipment, specifically to a spraying device for the outer surface of columnar materials. Background Technology

[0002] In the production of ductile iron pipes, the external wall coating process is a key step affecting the product's appearance quality and corrosion resistance. Traditional external coating equipment typically uses a fixed spray gun structure, with the spray gun mounted on an external coating trolley track, and the coating operation is completed by the trolley moving laterally.

[0003] Although the above-mentioned device can be used to spray the outer wall of cast iron pipes, in the actual spraying process of enterprises, it is necessary to spray cast iron pipes of different diameters. However, since the position of the spray gun is fixed, some paint is sprayed into non-working areas, resulting in waste. At the same time, excessive spraying can easily cause sagging. Furthermore, the relative angle between the pipe wall and the spray gun is different, resulting in different fan-shaped sprays of paint and different amounts of paint sprayed onto the pipe surface, which directly affects the appearance quality and corrosion resistance of the product. Utility Model Content

[0004] In view of this, the present invention provides a spraying device for the outer surface of columnar materials. The present invention can adjust the distance between the spray gun and the outer wall of the workpiece, so that it can be used to spray the outer surface of columnar materials of different diameters, thereby improving the practicality and applicability of the spraying device.

[0005] To solve the above-mentioned technical problems, this utility model provides a coating device for the outer surface of columnar materials, including a bracket that is linearly slidably placed on the side of a rotating workpiece, and the sliding trajectory of the bracket is parallel to the axis of the workpiece.

[0006] The spray gun is fixed on the bracket by an adjustment mechanism. When the bracket slides, the spray gun can be driven to slide along the axis of the workpiece through the adjustment mechanism. The adjustment mechanism is used to adjust the distance between the spray gun and the outer wall of the workpiece or to adjust the relative angle between the spray gun and the outer wall of the workpiece. When the bracket slides, it can drive the spray gun to move and spray the outer surface of the columnar material during the rotation process.

[0007] The adjustment mechanism is used to adjust the distance between the spray gun and the outer wall of the workpiece, and to adjust the relative angle between the spray gun and the outer wall of the workpiece. The adjustment mechanism can drive the spray gun to move closer to or further away from the outer surface of the workpiece and can drive the spray gun to rotate.

[0008] The adjustment mechanism is a robot unit mounted on a support frame, and the robot unit is connected to the PLC.

[0009] The robot unit is a three-axis robotic arm.

[0010] The workpiece has a track on its side, which is parallel to the workpiece axis, and a support slides on the track.

[0011] The workpiece is also equipped with a gantry frame, with a track laid on the crossbar of the gantry frame, and the spray gun can be positioned above the workpiece to spray it.

[0012] The track is a linear slide, and the support is a slider that is slidably set on the linear slide. The linear slide can stably and uniformly spray the workpiece. The linear slide is also connected to the PLC.

[0013] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0014] 1. Dynamically adjust spraying parameters to adapt to various material specifications:

[0015] By adjusting the distance and relative angle between the spray gun and the outer wall of the workpiece in real time using an adjustment mechanism (such as a three-axis robotic arm), the problems of paint waste, sagging, and uneven spraying caused by changes in pipe diameter in traditional fixed spray guns are solved. For example, when spraying smaller diameter pipes, the spray gun can automatically move closer to the pipe wall and adjust the angle to make the paint fan perpendicular to the pipe wall, ensuring uniform coating thickness; when the pipe diameter increases, the spray gun moves back and the angle increases to avoid overspraying, thereby reducing paint waste and lowering the risk of sagging.

[0016] 2. Precise motion control ensures coating quality:

[0017] A linear slide table is used as the track, combined with a PLC control system, to achieve uniform and stable sliding of the support. This design ensures that the movement trajectory of the spray gun along the workpiece axis is precisely matched with the workpiece rotation speed, avoiding uneven coating thickness caused by speed fluctuations.

[0018] 3. Increased automation and flexibility reduce human intervention:

[0019] The introduction of robotic units (such as three-axis arms) enables automated adjustment of the spray gun position and angle, eliminating the need for manual adjustments. This is particularly suitable for production scenarios involving multiple product types and small batches. For example, when changing pipe diameters on a ductile iron pipe production line, the system can quickly complete parameter adjustments through a preset program, reducing changeover time to less than 30 seconds and improving production efficiency.

[0020] 4. Structural optimization to improve equipment reliability:

[0021] The gantry design integrates the track into the crossbar, allowing the spray gun to operate above the workpiece and avoiding interference from ground debris. Simultaneously, the track is arranged parallel to the workpiece axis, ensuring strict alignment of the spray gun's movement direction with the workpiece's rotation axis, reducing the impact of mechanical vibration on coating accuracy. Furthermore, the modular design (such as detachable robot units) facilitates maintenance and upgrades, reducing the overall equipment failure rate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a columnar material outer surface spraying device according to the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Gantry frame; 2. Track; 3. Support frame; 4. Adjustment mechanism; 5. Spray gun; 6. Cast iron pipe. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0026] This embodiment provides a device for spraying the outer surface of columnar materials, such as... Figure 1 As shown: The device includes a cast iron pipe 6 fixing device with two plugs that can seal both ends of the cast iron pipe 6, clamping it and causing it to rotate. The spraying device includes a support 3, which slides linearly along the side of the rotating workpiece, with its sliding trajectory parallel to the workpiece axis. The support 3 is also connected to a spray gun 5 via an adjustment mechanism 4. The adjustment mechanism 4 can adjust the distance between the spray gun 5 and the outer wall of the workpiece, and can also rotate the spray gun 5, thus adjusting the relative angle between them. This allows for adaptation to cast iron pipes 6 of different diameters. During the rotation of the cast iron pipe 6, the support 3 drives the spray gun 5 to slide, allowing the spray gun 5 to spray the outer wall of the rotating cast iron pipe 6.

[0027] Specifically, the adjustment mechanism 4 includes a robot unit mounted on the support 3. The robot unit is a robot arm mounted on the support 3. The robot arm can be a three-axis robot arm, which can change the position of the spray gun 5 according to the cast iron pipe 6 of the corresponding diameter.

[0028] Furthermore, a gantry frame 1 is also provided corresponding to the support 3, such as... Figure 1 As shown: The side of the crossbar of the gantry frame 1 is also equipped with a track 2, and the bracket 3 is slidably set on the track 2. The bracket 3 is located directly above the cast iron pipe 6, so that when the spray gun 5 sprays the cast iron pipe 6, the excess spray liquid will drip off under the action of gravity and will not scatter in the air to affect the working environment.

[0029] It is worth mentioning that the track 2 is a linear slide table set on the crossbar of the gantry 1, and the bracket 3 is a slider set on the linear slide table. That is, the linear slide table can stably and uniformly drive the spray gun 5 to move.

[0030] Furthermore, both the linear slide and the three-axis robot arm are connected to the PLC. That is, by changing the cast iron pipe 6 of different diameters, the speed of the slider on the linear slide and the angle and position of the spray gun 5 on the three-axis robot can be adjusted by the PLC.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A device for spraying coating the outer surface of columnar materials, characterized in that, include: The bracket (3) is linearly slidably placed on the side of the rotating workpiece, and the sliding trajectory of the bracket (3) is parallel to the axis of the workpiece. The spray gun (5) is fixed on the bracket (3) by the adjustment mechanism (4). When the bracket (3) slides, the spray gun (5) can be driven to slide along the axis of the workpiece by the adjustment mechanism (4). The adjustment mechanism (4) is used to adjust the distance between the spray gun (5) and the outer wall of the workpiece or to adjust the relative angle between the spray gun (5) and the outer wall of the workpiece.

2. The device for spraying the outer surface of columnar materials as described in claim 1, characterized in that, The adjustment mechanism (4) is used to adjust the distance between the spray gun (5) and the outer wall of the workpiece, and to adjust the relative angle between the spray gun (5) and the outer wall of the workpiece.

3. A coating device for the outer surface of columnar materials as described in claim 1 or 2, characterized in that, The adjustment mechanism (4) is a robot unit mounted on the support (3).

4. The device for spraying the outer surface of columnar materials as described in claim 3, characterized in that, The robot unit is a three-axis robot arm.

5. A coating device for the outer surface of columnar materials as described in claim 1 or 2, characterized in that, The workpiece is provided with a track (2) on its side, the track (2) is parallel to the workpiece axis, and a bracket (3) is slidably placed on the track (2).

6. The device for spraying the outer surface of columnar materials as described in claim 5, characterized in that, The corresponding workpiece is also provided with a gantry frame (1), and the track (2) is laid on the crossbar of the gantry frame (1).

7. The device for spraying the outer surface of columnar materials as described in claim 5, characterized in that, The track (2) is a linear slide, and the bracket (3) is a slider that is slidably mounted on the linear slide.

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