Construction method of granitic plaster facing component with complex shape

Abstract

The invention discloses a construction method of a complex modeling granitic plaster facing component, which is characterized by comprising the following steps: constructing a three-dimensional model of the complex modeling granitic plaster facing component; according to the three-dimensional model of the granitic plaster facing component with the complex shape, a mold of the granitic plaster facing component with the complex shape is generated through three-dimensional modeling software by adopting Boolean operation; a mold is manufactured through the 3D printing technology; spraying a retarder on the inner surface of the mold; preparing granitic plaster slurry; the granitic plaster slurry is poured into a mold of the granitic plaster facing component with the complex shape; and the mold is demolded, and the granitic plaster facing component with the complex shape is taken out. According to the method, the contour shape and the geometric dimension of the granitic plaster facing component with the complex shape can be guaranteed, the construction quality of the granitic plaster facing component with the complex shape can be guaranteed, the construction efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of building component manufacturing, and particularly to a construction method for a complex-shaped pebble dash finish component. Background Art

[0002] Pebble dash finishes can be used for the finish decoration of various complex-shaped components in building structures, such as the vase railings with pebble dash finishes, the Ionic columns with pebble dash finishes, the lintels of stone gateways with pebble dash finishes, the pediments, and the door and window casings of complex-shaped pebble dash finish components. During the renovation and transformation of historical buildings in historical blocks, it is necessary to restore and inherit the characteristic elements of the architectural style of the original block. Therefore, various types of components with pebble dash finishes have also become the main restoration objects in the renovation projects of historical buildings. Traditional pebble dash finish construction mainly relies on manual plastering by craftsmen, with low construction efficiency. Moreover, the accuracy of the geometric dimensions of the components and the washing effect of the pebble dash finish mainly depend on the construction experience of the craftsmen. With the aging and generation gap problems of the craftsmen, it has become increasingly difficult to guarantee the construction quality of pebble dash finishes, especially those of the above-mentioned complex-shaped components. Summary of the Invention

[0003] The object of the present invention is to provide a construction method for a complex-shaped pebble dash finish component, so as to solve the problem that it is difficult to guarantee the construction quality of the pebble dash finish of complex-shaped components made by craftsmen due to the influence of technical level and experience.

[0004] To solve the above technical problems, the present invention provides a construction method for a complex-shaped pebble dash finish component, including:

[0005] Constructing a three-dimensional model of the complex-shaped pebble dash finish component;

[0006] Generating a mold for the complex-shaped pebble dash finish component by Boolean operation according to the three-dimensional model of the complex-shaped pebble dash finish component through three-dimensional modeling software;

[0007] Manufacturing the mold by 3D printing technology;

[0008] Spraying a retarder on the inner surface of the mold;

[0009] Preparing the pebble dash slurry;

[0010] Pouring the pebble dash slurry into the mold of the complex-shaped pebble dash finish component;

[0011] Demolding the mold to take out the complex-shaped pebble dash finish component.

[0012] Furthermore, the construction method for the complex-shaped pebble dash finish component provided by the present invention further includes:

[0013] Flush the complex-shaped washed pebble finish components made of molds.

[0014] Further, the construction method of the complex-shaped washed pebble finish components provided by the present invention further includes:

[0015] Dry the complex-shaped washed pebble finish components after flushing;

[0016] Apply a water repellent to the dried complex-shaped washed pebble finish components.

[0017] Further, for the construction method of the complex-shaped washed pebble finish components provided by the present invention, the method for constructing the 3D model of the complex-shaped washed pebble finish components includes:

[0018] Construct the 3D model of the complex-shaped washed pebble finish components through 3D modeling software in a forward modeling manner according to the engineering drawings of the complex-shaped washed pebble finish components.

[0019] Further, for the construction method of the complex-shaped washed pebble finish components provided by the present invention, the method for constructing the 3D model of the complex-shaped washed pebble finish components includes:

[0020] Scan the complex-shaped washed pebble finish components demolished in historical buildings by a 3D laser scanner to generate a point cloud model of the complex-shaped washed pebble finish components;

[0021] Denoise and clean the point cloud model obtained by the 3D laser scanner through point cloud processing software;

[0022] Import the cleaned point cloud model into 3D model software and use Boolean operations to generate the 3D model of the complex-shaped washed pebble finish components in a reverse modeling manner.

[0023] Further, for the construction method of the complex-shaped washed pebble finish components provided by the present invention, the method for manufacturing the mold by 3D printing technology includes:

[0024] Use PETG (polyethylene terephthalate-1,4-cyclohexanedimethanol ester) as the printing raw material to print the mold through a 3D printer.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] The construction method of the complex-shaped pebble dash finish component provided by the present invention constructs a three-dimensional model of the complex-shaped pebble dash finish component, generates a special mold, manufactures the mold using 3D printing technology, and manufactures the complex-shaped pebble dash finish component through the mold, thereby ensuring the contour shape and geometric dimensions of the complex-shaped pebble dash finish component, ensuring the construction quality of the complex-shaped pebble dash finish component, improving the construction efficiency, and reducing the cost. Compared with the production method of manual plastering by craftsmen, it is not affected by the technical level and experience of craftsmen, and avoids the problem that complex-shaped pebble dash finish components cannot be hand-made due to the aging and generational break of craftsmen. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flow chart of the construction method of the complex-shaped pebble dash finish component;

[0028] Figure 2 It is a flow chart of constructing the three-dimensional model of the complex-shaped pebble dash finish component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present invention will be described in detail below with reference to the accompanying drawings: According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the embodiments of the present invention.

[0030] Please refer to Figures 1 to 2 , an embodiment of the present invention provides a construction method of a complex-shaped pebble dash finish component, including:

[0031] Step 101, construct a three-dimensional model of the component, that is, construct a three-dimensional model of the complex-shaped pebble dash finish component, where the complex-shaped pebble dash finish component is simply referred to as the component. In order to construct the three-dimensional model of the complex-shaped pebble dash finish component, two methods can be divided according to whether the component has a design drawing.

[0032] Method 1, forward modeling. Specifically: when the component has a design drawing, construct a three-dimensional model of the complex-shaped pebble dash finish component through three-dimensional modeling software according to the design drawing of the complex-shaped pebble dash finish component. For example, use Rhino three-dimensional modeling software to construct a three-dimensional rhino model of the complex-shaped pebble dash finish component.

[0033] Method 2: Reverse modeling. Specifically: When there is no design drawing for the component, use a 3D laser scanner to scan the removed complex-shaped pebble dash finish components in the historical building to generate a point cloud model of the complex-shaped pebble dash finish components; use point cloud processing software (such as CloudCompare) to denoise and clean the point cloud model obtained by the 3D laser scanner; import the cleaned point cloud model into Rhino 3D modeling software to generate a 3D model of the complex-shaped pebble dash finish components in the reverse modeling method.

[0034] Step 102: Generate a mold, that is, use a 3D modeling software to generate a mold for the complex-shaped pebble dash finish components by Boolean operation based on the 3D model of the complex-shaped pebble dash finish components.

[0035] Step 103: 3D print the mold, that is, use 3D printing technology to make the mold. Use PETG (polyethylene terephthalate-1,4-cyclohexanedimethanol ester) as the raw material to print and make the mold through a 3D printer. PETG has the characteristics of high toughness and resistance to chemical corrosion. The mold printed with this raw material has the characteristics of good support force, high number of turnover times, and the mold can support the use of various types of admixtures.

[0036] Step 104: Spray a retarder on the inner surface of the mold. Spray the retarder on the inner surface of the mold through spraying tools such as an air pump. This surface retarder not only has the effect of retarding the setting of the cement slurry on the surface of the component, but also can accurately control the retardation depth, so as to achieve the effect of controlling the stone washing depth after the component is demolded; it can regulate the setting time of the pebble dash slurry in the mold, improve the surface quality, and facilitate demolding and cleaning of the mold.

[0037] Step 105: Prepare the pebble dash slurry. According to the material ratio of the pre-determined pebble dash sample, prepare cement, stones and water, and strictly mix the pebble dash stone slurry according to the material mixing ratio. During the mixing process, pay attention to the uniformity of the materials. Among them, steps 101 to 104 and step 105 are parallel steps, and their order can be interchanged.

[0038] Step 106: Pour the slurry into the mold, that is, pour the pebble dash slurry into the mold of the complex-shaped pebble dash finish components. During the pouring process, pay attention to avoiding pouring quickly and in large quantities, which may cause air bubbles in the mold. The pouring process should be as uniform and slow as possible, and specimens cured under the same conditions can be made.

[0039] Step 107: Demold, that is, demold the mold and take out the complex-shaped pebble dash finish components, so as to complete the production of the complex-shaped pebble dash finish components through the mold. After the specimens cured under the same conditions reach the final setting of the cement, demold the mold. When demolding, slowly separate the mold from the component starting from the four sides of the component to take out the complex-shaped pebble dash finish components. The specimens are used as a reference for the setting of the mold.

[0040] To improve the construction quality of the water-brushed stone veneer components with complex shapes and avoid having rough slurry particles on the surface, it may further include:

[0041] Step 108, cleaning, that is, the complex-shaped water-brushed stone veneer components made by the mold can be rinsed with a high-pressure water gun to wash away the cement slurry within the controlled setting retardation depth range, exposing the stones, achieving the effect of precise control of the stone-washing depth on the surface of the water-brushed stone veneer. To facilitate the reuse of the mold and improve the quality of mold production, the mold can be cleaned.

[0042] Step 109, drying treatment is performed on the rinsed complex-shaped water-brushed stone veneer components. After drying, the performance of the components can be improved.

[0043] Step 110, apply a water repellent to the dried complex-shaped water-brushed stone veneer components. By applying the water repellent, a protective layer for the veneer is formed to protect its outer contour.

[0044] The construction method of the complex-shaped water-brushed stone veneer components provided by the embodiments of the present invention constructs a three-dimensional model of the complex-shaped water-brushed stone veneer components, generates a special mold, uses 3D printing technology to make the mold, and makes the complex-shaped water-brushed stone veneer components through the mold, thereby ensuring the contour shape and geometric dimensions of the complex-shaped water-brushed stone veneer components, ensuring the construction quality of the complex-shaped water-brushed stone veneer components, improving the construction efficiency, and reducing the cost. Compared with the production method of manual plastering by craftsmen, it is not affected by the technical level and experience of the craftsmen, and avoids the problem that the complex-shaped water-brushed stone veneer components cannot be made manually due to the aging and generational break of the craftsmen.

[0045] The construction method of the complex-shaped water-brushed stone veneer components provided by the embodiments of the present invention uses the digital technology of three-dimensional modeling software to generate a mold for the complex-shaped water-brushed stone veneer components by constructing a three-dimensional model of the complex-shaped water-brushed stone veneer components, and makes the mold of the components through 3D printing technology to form a high-precision mold, completely eliminating the manufacturing error when the mold is made manually, thereby improving the construction quality of the complex-shaped water-brushed stone veneer components made through the mold. By spraying setting retarders and other admixtures in the mold, the prefabrication of the complex-shaped water-brushed stone veneer components is realized, changing the problem that the surface finish effect is affected by the gestures of the craftsmen in the construction of the water-brushed stone veneer by manual plastering of the craftsmen.

[0046] The present invention is not limited to the above specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. Thus, if these modifications and changes of the present invention are within the scope of the claims of the present invention, the present invention also intends to include these modifications and changes.

Claims

1. A construction method for a complex-shaped pebble dash finish component, characterized in that, Including: Constructing a 3D model of a complex-shaped washed pebble finish component; Generating a mold for the complex-shaped washed pebble finish component by Boolean operation according to the 3D model of the complex-shaped washed pebble finish component through 3D modeling software; Fabricating the mold by 3D printing technology; Spraying a retarder on the inner surface of the mold; Preparing the washed pebble slurry; Pouring the washed pebble slurry into the mold of the complex-shaped washed pebble finish component; Demolding the mold to take out the complex-shaped washed pebble finish component.

2. The construction method of the complex-shaped pebble dash finish member according to claim 1, characterized in that, Also including: Rinsing the complex-shaped washed pebble finish component fabricated by the mold.

3. The construction method of the complex-shaped pebble dash finish component according to claim 2, characterized in that, Also including: Performing a drying treatment on the rinsed complex-shaped washed pebble finish component; Coating a water repellent on the dried complex-shaped washed pebble finish component.

4. The construction method of the complex-shaped pebble dash finish member according to claim 1, wherein, The method for constructing the 3D model of the complex-shaped washed pebble finish component includes: Constructing a 3D model of the complex-shaped washed pebble finish component through 3D modeling software in a forward modeling manner according to the engineering drawings of the complex-shaped washed pebble finish component.

5. The construction method of the complex-shaped pebble dash finish component according to claim 1, characterized in that, The method for constructing the 3D model of the complex-shaped washed pebble finish component includes: Scanning the complex-shaped washed pebble finish component removed from a historical building by a 3D laser scanner to generate a point cloud model of the complex-shaped washed pebble finish component; Denosing and cleaning the point cloud model obtained by the 3D laser scanner through point cloud processing software; Importing the cleaned point cloud model into 3D model software and using Boolean operation to generate a 3D model of the complex-shaped washed pebble finish component in a reverse modeling manner.

6. The construction method of the complex-shaped pebble dash finish component according to claim 1, characterized in that, The method for fabricating the mold by 3D printing technology includes: Printing the mold by a 3D printer using PETG (polyethylene terephthalate-1,4-cyclohexanedimethanol) as the printing raw material.

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