A ship plating paint demarcation line marker and a manufacturing method thereof

Abstract

The application provides a ship plate paint demarcation line mark and a manufacturing method thereof. The mark is manufactured in a segmented manufacturing stage: the position coordinates of the paint demarcation line on the plate are determined based on a segmented precision measurement coordinate system, and permanent mark pieces are applied at corresponding positions along the demarcation line direction at a set interval; after each segment is carried and folded, each mark piece automatically forms a continuous paint demarcation line mark along the whole ship. The permanent mark piece is a surfacing welding stack with a length of 75 mm, a height of 6 mm, and an adjacent interval of 3000 mm in a flat area, and the interval is adjusted accordingly in a curvature change area. The application eliminates repeated measurement operations at high altitudes, realizes permanent preservation of the demarcation line mark, and is suitable for ship construction and later maintenance.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically relating to a marking for the paint demarcation line on the outer plating of a ship and its manufacturing method. Background Technology

[0002] In ship design and construction, to distinguish the painting areas of different draft zones, different colored paint is usually used to mark the paint boundary line (i.e., the waterline) on the outer plating. The area below the waterline is painted with anti-corrosion paint, while the area above the waterline is painted with ordinary protective paint. The two are distinguished by their colors for easy identification.

[0003] In existing technologies, the marking of the paint demarcation line on the outer plating is usually carried out after the ship is fully assembled. The specific method involves using a three-dimensional rotational precision instrument to measure the precision of the entire outer plating, determining the demarcation line position, and then marking the points with a marker pen. Due to the long length of the ship and the linear tapering of the outer plating from bow to stern, a large number of precision points need to be marked along the entire ship from bow to stern. This requires operators to work at height using aerial work platforms, making the construction difficult, time-consuming, and posing certain safety risks. Furthermore, the marker pen marks are temporary and easily disappear during subsequent construction or maintenance, making them unreliable for long-term identification during later ship maintenance. Summary of the Invention

[0004] To address the problems of existing technologies, which require the entire ship to be assembled and assembled before construction can proceed, resulting in high construction difficulty, long construction periods, and safety risks, this invention provides a paint demarcation line marker for a ship's outer plating and its manufacturing method. The marker includes several permanent marker components, which are arranged on the ship's outer plating at predetermined intervals along the paint demarcation line direction. The permanent marker components are fixedly connected to the outer plating, and the position of each permanent marker component corresponds to the position coordinate of the paint demarcation line in the segmented accuracy measurement coordinate system.

[0005] Furthermore, the permanent marker is a weld overlay that extends along the boundary line.

[0006] Furthermore, the length of the weld bead is 75mm and the height is 6mm.

[0007] A method for producing a paint demarcation line mark on a ship's outer plating includes the following steps: S1. Based on the segmentation of the ship, determine the segments of the ship's outer plating that involve paint demarcation lines, and calculate the position coordinates of the paint demarcation lines on the outer plating of each segment based on the precision measurement coordinate system of each segment. S2. In the stage of segmented manufacturing completion, according to the position coordinates determined in S1, permanent markers are applied at the corresponding positions of each segment of the outer plate along the boundary line at a set interval, and the permanent markers are fixedly connected to the outer plate. S3. After each section is assembled, the permanent markers on the outer plates of each section form a continuous paint demarcation line along the entire ship.

[0008] Furthermore, in S2, the permanent marker is fixedly connected to the outer plate by welding.

[0009] Furthermore, the permanent marker is a weld bead formed by welding onto the outer plate, the weld bead extending along the boundary line direction.

[0010] Furthermore, the length of the weld bead is 75 mm and the height is 6 mm.

[0011] Furthermore, in the flat area of ​​the outer panel, the spacing between adjacent permanent markers is 3000mm; in the area where the curvature of the outer panel changes, the spacing between adjacent permanent markers is adjusted accordingly based on the curvature change.

[0012] Furthermore, in S2, during the segmented accuracy measurement point arrangement stage, the height coordinate value corresponding to the paint boundary line is incorporated into the segmented accuracy measurement coordinate system as an additional accuracy measurement point, and is simultaneously marked with the segmented end accuracy measurement points to determine the position coordinates of the paint boundary line on the outer plate of each segment.

[0013] Furthermore, the following steps are also included: after S3, based on the permanent markers on each segment of the outer panel, a protective film is applied along the paint dividing line, and the outer panel is painted in sections.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By moving the paint dividing line marking process forward to the segment manufacturing stage and using the segment precision measurement coordinate system to determine the position coordinates of the dividing line, the marking can be applied to each segment during the ground manufacturing stage. This fundamentally eliminates the need for repeated measurement and positioning along the entire ship after the ship is assembled, thus eliminating the safety risks associated with high-altitude operations, reducing construction difficulty, and shortening the construction cycle. By applying permanent markers that are fixedly connected to the outer plate at the corresponding position, instead of using traditional temporary markers, the permanent markers form an inseparable fixed connection with the outer plate, so that the paint boundary line markings are permanently retained on the outer plate and will not disappear due to subsequent painting, maintenance or other operations. This allows for direct identification during later ship maintenance and repairs without the need for remeasurement and repositioning. Attached Figure Description

[0015] Figure 1 A plan view of the draft boundary of the entire ship structure; Figure 2 This is a plan view showing the arrangement of measurement points for the paint boundary line accuracy on a single segmented outer panel according to the present invention. Figure 3This is a schematic diagram showing the dimensions and spacing of the permanent markers on the segmented outer plate of the present invention; Figure 4 This is a schematic diagram showing the state of the paint demarcation line markings on the entire ship after each section of the present invention is assembled. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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 invention.

[0018] This application provides a paint demarcation line mark for the outer plating of a ship and a method for manufacturing the same. The production steps of the paint demarcation line mark for the outer plating of a ship are advanced to the manufacturing stage of each section: after the section is manufactured independently, permanent markers are set at the corresponding positions on each section according to its coordinate values ​​in the ship's coordinate system. After the sections are assembled, the permanent markers are automatically aligned to form a paint demarcation line mark that is continuously arranged along the entire ship.

[0019] Reference Figure 1 In some embodiments of this application, the ship is composed of several sections, each constructed independently during the section manufacturing stage. The elevation coordinates of the paint demarcation line in the ship's overall coordinate system are uniquely determined, thereby identifying which sections' outer plates fall within the marked area of ​​the paint demarcation line. An X / Y / Z coordinate system is established with the hull as the base point, and corresponding precision measurement points are set at the ends of each section based on this coordinate system. The precision measurement points of the forward and aft sections correspond to each other, thereby ensuring that no deviation occurs when the sections are assembled.

[0020] Combination Figure 2During the segment precision measurement point layout phase, the height coordinate value corresponding to the paint demarcation line is incorporated into the segment precision measurement coordinate system as an additional precision measurement point, and its marking is completed simultaneously with the segment end precision measurement points. Specifically, in the segment precision measurement coordinate system, the Z-coordinate height value of the paint demarcation line is marked along with the segment end precision measurement points at their corresponding positions on the segment's outer plate, thus determining the precise position coordinates of the paint demarcation line on this segment's outer plate. Since the precision measurement coordinate systems for each segment are established with the same hull base point as a reference, the demarcation line markers for each segment correspond to each other in the coordinate system, ensuring that the demarcation line markers automatically align after each segment is assembled, eliminating the need for re-measurement and repositioning after assembly.

[0021] like Figure 3 As shown, during the segmented manufacturing completion stage, based on the determined position coordinates, permanent markers are applied at set intervals along the boundary line at the corresponding positions of each segment's outer plate. The permanent markers are fixedly connected to the outer plate by welding. The welding connection makes the markers and the outer plate inseparable and ensures that the markers will not fall off or disappear due to subsequent painting, maintenance, or other operations.

[0022] The permanent marker is a weld bead formed by soldering onto the outer panel. This weld bead extends along the boundary line and is positioned at the boundary line on the outer panel surface, forming a permanent, metallurgically bonded connection with the outer panel. It creates a physical protrusion of a certain height on the outer panel surface, serving as a permanent, visual marker of the paint boundary line. The weld bead is 75mm long and 6mm high. This size of weld bead creates a clearly identifiable physical protrusion on the outer panel surface, meeting the visual recognition requirements of the boundary line marker. Simultaneously, the height of the weld bead provides a clear physical boundary positioning reference for subsequent protective film application, preventing misalignment of the protective film application position.

[0023] In other embodiments of this application, regarding the spacing of permanent markers: in flat areas of the outer plate, the spacing between adjacent permanent markers is 3000mm; in areas where the curvature of the outer plate changes, such as the linear contraction areas at the bow and stern, the spacing between adjacent permanent markers is reduced accordingly based on the curvature change. Using a uniform spacing of 3000mm in flat areas ensures the continuous recognizability of the markers with less welding work; reducing the spacing in areas of curvature change ensures that the boundary line markers remain continuous at the points where the outer plate line changes, preventing discontinuity or positional deviation due to excessive spacing. Through the above differentiated spacing settings, the continuity of the boundary line markers throughout the ship is ensured while reducing unnecessary welding work.

[0024] Reference Figure 4In some embodiments of this application, when there are multiple paint demarcation lines on the outer plating of a ship, such as the structural waterline and the design waterline, the Z-coordinate height values ​​corresponding to each demarcation line are incorporated into the segment accuracy measurement coordinate system. Permanent markers are then applied to each segment of the outer plating along the direction of each demarcation line at predetermined intervals. These permanent markers are fixedly connected to the outer plating. After the segments are assembled, the markers along each demarcation line form continuous markings along the entire ship, thus clearly distinguishing the boundaries of different paint zones.

[0025] After the sections are assembled, the permanent markers on the outer plating of each section automatically align in space, as the coordinate systems for precision measurement of each section are all established with the same hull base point as a reference, forming a continuous paint demarcation line along the entire ship. This process eliminates the need for repeated high-altitude measurements and positioning using three-dimensional rotational precision instruments after assembly, thus eliminating the safety risks associated with high-altitude operations and shortening the construction period.

[0026] In some embodiments of this application, after each segment is fitted with and joined to form a continuous paint boundary line marker, a protective film is applied along the paint boundary line using the permanent marker on the outer panel of each segment as a reference, and then the outer panel is painted in sections. Specifically, using the boundary of the permanent marker as a physical positioning reference, the protective film is sequentially applied along the paint boundary line direction, with the edge of the protective film aligned with the boundary of the permanent marker, thereby accurately defining the boundary of each painting section. After application, each section is sprayed, and the protective film is then removed. Since the permanent marker forms an inseparable fixed connection with the outer panel, using it as the physical positioning reference for applying the protective film eliminates the need for re-measurement and positioning, simplifying the operation and ensuring accurate painting section boundaries.

[0027] Since the positions of the paint demarcation line markers for each section are determined based on the same section accuracy measurement coordinate system, and the accuracy measurement coordinate systems of each section correspond to each other, after each section is assembled, the permanent markers on each section automatically align in space, forming a continuous paint demarcation line marker along the entire ship, ensuring the continuity and consistency of the demarcation line throughout the ship, without the need for overall calibration after assembly.

[0028] After the assembly is completed, the protective film can be directly applied using the permanent marker as the physical positioning reference for zoned painting. There is no need to remeasure and position, making the operation simple, highly adaptable, and effectively improving the efficiency and accuracy of painting operations.

[0029] In summary, these are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification are within the scope of the present invention.

Claims

1. A marking for the paint demarcation line on the outer plating of a ship, characterized in that: It includes several permanent markers, which are arranged on the outer plating of the ship at a set interval along the paint demarcation line; the permanent markers are fixedly connected to the outer plating, and the position of each permanent marker corresponds to the position coordinate of the paint demarcation line in the segment accuracy measurement coordinate system.

2. The ship outer plating paint demarcation line marking structure according to claim 1, characterized in that: The permanent marker is a weld overlay, which extends along the boundary line.

3. The ship outer plating paint demarcation line marking structure according to claim 2, characterized in that: The weld bead has a length of 75mm and a height of 6mm.

4. A method for manufacturing a paint demarcation line mark on the outer plating of a ship, characterized in that, Includes the following steps: S1. Based on the segmentation of the ship, determine the segments of the ship's outer plating that involve paint demarcation lines, and calculate the position coordinates of the paint demarcation lines on the outer plating of each segment based on the precision measurement coordinate system of each segment. S2. In the stage of segmented manufacturing completion, according to the position coordinates determined in S1, permanent markers are applied at the corresponding positions of each segment of the outer plate along the boundary line at a set interval, and the permanent markers are fixedly connected to the outer plate. S3. After each section is assembled, the permanent markers on the outer plates of each section form a continuous paint demarcation line along the entire ship.

5. The method according to claim 4, characterized in that: In S2, the permanent marker is fixedly connected to the outer plate by welding.

6. The method according to claim 4, characterized in that: The permanent marker is a weld bead formed by welding onto the outer plate, and the weld bead extends along the boundary line.

7. The method according to claim 6, characterized in that: The weld bead has a length of 75mm and a height of 6mm.

8. The method according to claim 4, characterized in that: In the flat area of ​​the outer panel, the spacing between adjacent permanent markers is 3000mm; in the area where the curvature of the outer panel changes, the spacing between adjacent permanent markers is adjusted accordingly based on the curvature change.

9. The method according to claim 4, characterized in that: In S2, during the segmented accuracy measurement point layout stage, the height coordinate value corresponding to the paint boundary line is incorporated into the segmented accuracy measurement coordinate system as an additional accuracy measurement point and simultaneously marked with the segmented end accuracy measurement points to determine the position coordinates of the paint boundary line on the outer plate of each segment.

10. The method according to claim 4, characterized in that, It also includes the following steps: After S3, using the permanent markers on each segment of the outer panel as a reference, a protective film is applied along the paint dividing line, and the outer panel is then painted in sections.

Images