Wood hollowed-out carving process

Through a new wood hollow carving process, the existing hollow carving technology is solved, which is difficult, time and high cost, and the hollow carving effect with simple operation, high accuracy and low cost is achieved, and the development potential of hollow carving technology is enhanced.

WO2025039202A1PCT designated stage expired Publication Date: 2025-02-27CHEN ZHULIN
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Patent Information

Application Number
PCT/CN2023/114336
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-08-23
Publication Date
2025-02-27

AI Technical Summary

Technical Problem

The existing hollow engraving technology has the problems of high difficulty in hollow engraving, long processing time, high cost, high loss rate and rough and not exquisite hollow patterns, which limits the development of hollow engraving technology.

Method used

A wood transparent engraving process is adopted, including selecting wood with fine and hard surface texture, making the required shape, polishing the outer surface of the wood shell, using adhesive to paste the design drawings, drying naturally or blow-drying to carry out transparent engraving and engraving, using a fine needle knife to carve according to the pattern and text, and applying protective layer and varnish on the surface of the cleaned wood shell.

Benefits of technology

It achieves the effects of easy operation, shortened processing time, reduced cost, reduced engraving difficulty, small loss rate and high yield rate. It also has high process accuracy and can reach 0.005mm, making hollow carving crafts more exquisite and detailed.

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Abstract

A wood hollowed-out carving process, comprising the following steps: selecting wood, making the wood into a required shape, then hollowing out the wood to form a sheet-like wooden shell, and then grinding the outer surface of the wooden shell and polishing same; applying an adhesive to the back of a design drawing on which seal carving of characters and patterns is needed; bonding the back of the design drawing to the outer surface of the wooden shell by means of the adhesive; naturally drying or blowing the bonded design drawing and wooden shell for three hours or more; using a fine-needle knife to perform hollow-out and seal carving according to lines of the patterns and characters; stripping the design drawing from the wooden shell, and using a small rotating wheel running at a high speed to clean the wooden shell; and coating the surface of the cleaned wooden shell with a protective layer, and then coating same with a varnish. The wood hollowed-out carving process is easy to operate, the processing time is obviously shortened, the costs are reduced, the difficulty of seal carving is reduced, the loss rate is low, and the yield is high.
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Description

A wood hollow carving process Technical Field

[0001] The invention relates to a carving process, in particular to a wood hollow carving process. Background Art

[0002] Currently, hollow carving techniques are mostly created using hand-cut chisels, which are meticulously ground down bit by bit. This is particularly challenging due to the fine grain of the wood forming the shell, which is brittle, easily broken, and prone to cracking. This results in a high scrap rate. Furthermore, this wood is expensive and in short supply. Secondly, the fine strokes of the chosen patterns and the varied fonts result in an imperfect overall effect. The thinner the wood shell, the rougher the result. Thirdly, even with the choice of strong wood and a coarse pattern, the hollowing process still requires meticulous, step-by-step carving, resulting in long processing times and high costs. Fourthly, the engraver's skills require years of continuous research and the gradual development of refined techniques to master this technique. Fifthly, depending on the characteristics of the wood, different hand-cut chisels are used for engraving, and the time required to process boxwood, other woods, and other types of wood is quite long. In summary, the existing hollow carving technology has the disadvantages of great difficulty in hollow carving, long processing time, high cost, high loss rate, rough and unrefined hollow patterns, etc., which limits the development of hollow carving technology.

[0003] Summary of the Invention

[0004] The present invention is completed to solve the deficiencies in the prior art. The purpose of the present invention is to provide a wood hollow carving process that is relatively easy to operate, has significantly shortened processing time, reduced costs, reduced carving difficulty, low loss rate, and high yield.

[0005] A wood hollow carving process of the present invention comprises the following steps:

[0006] a. Select wood with surface grain spacing less than 0.1mm, shape it into the required shape, hollow out the wood to form a sheet-like wooden shell, and then grind the outer surface of the wooden shell to make it smooth;

[0007] b. Apply glue to the back of the design drawing with the text and pattern to be engraved;

[0008] c. Bond the back of the design to the outer surface of the wooden shell with glue;

[0009] d. Allow the bonded design and wood shell to air dry or blow dry for more than three hours;

[0010] e. Use a fine needle-tip knife to carve patterns and characters according to their textures;

[0011] f. Separate the wooden shell from the design drawing and clean it using a small high-speed rotating wheel;

[0012] g. Apply a protective layer on the cleaned wooden shell surface and then apply varnish.

[0013] The wood hollow carving process of the present invention can also be:

[0014] The protective layer is a mixture of 40% to 70% by weight of transparent paint, 20% to 35% of black na powder, and 10% to 40% of yellow na powder melted at high temperature.

[0015] After step f, and before step g, the carved wooden shell is soaked and bleached with oxygenated water and ammonia water and then dried. Then, the wooden shell is soaked in pigment water formed by fusing black sodium powder and yellow sodium powder to match the color and then dried.

[0016] The carved wooden shell is placed in the pigment water formed by melting the yellow na powder and the black na powder and soaked for 6-20 minutes.

[0017] Pigment is added into the pigment water formed by the yellow sodium powder and the black sodium powder.

[0018] The design and the wooden shell bonded together are allowed to air dry for 24 hours.

[0019] The wood is one of pear wood, boxwood, kalanchoe, mahogany, red sandalwood, rosewood and sandalwood.

[0020] The design and the wooden shell bonded together are blow-dried using a hair dryer.

[0021] The wood hollow carving process of the present invention is superior to the prior art in that after the outer surface of the wooden shell is polished, a design drawing is affixed thereto by gluing, and then the wood shell is engraved and hollowed out after being air-dried or blow-dried. This makes the wooden shell difficult to damage, the hollowing out and engraving speeds are accelerated, the yield rate is high, and the loss is reduced. Since the engraving and hollowing are directly performed on the drawing, the processing is easier. The precision of the engraving hollowing process is high, which can reach 0.005mm, making the engraving hollowing handicraft more exquisite and meticulous. Such a process also greatly shortens the processing time, which is one-third of the processing time of the traditional process. At the same time, since the required engraving and hollowing technical requirements are reduced, the processing time is short, and the protective layer is provided, so that an extra protective film is added to the outside of the wooden shell, the scrap rate is relatively low during the processing, and the finished product after the processing is difficult to damage, thereby greatly saving costs, and further expanding the wood material of the wooden shell used for the engraving hollowing to more common and cheaper wood. DETAILED DESCRIPTION

[0022] The present invention is described in further detail below.

[0023] Specific embodiment 1

[0024] A wood hollow carving process of the present invention comprises the following steps:

[0025] a. Choose a hard wood with fine grain, with the spacing between the grains less than 1mm, preferably 0.5mm. Shape the wood into the desired shape. If you only need to make a Ruyi, grind or shave the wood into a Ruyi shape. Other shapes are also possible, such as a tripod, an elephant, or a tiger. Hollow out the wood to form a sheet-like shell, and then grind the outer surface of the shell to a smooth finish. This ensures that the carved and hollowed-out stripes on the shell are smooth, the appearance is beautiful, and the overall effect is more refined.

[0026] b. Apply glue on the back of the design drawing with the text and pattern to be engraved. The role of the glue is to fit the drawing to the wooden shell during the engraving and hollowing process, making it convenient to carve hollows directly on the drawing. It also increases the toughness of the wooden shell, protects the wooden shell from cracks and fissures, and improves the product yield.

[0027] c. The back of the design drawing is glued to the outer surface of the wooden shell. In this way, the processing only needs to be done on the drawing, without having to memorize the pattern on the drawing first, saving time and improving efficiency.

[0028] d. Allow the bonded design and wood shell to air dry or blow dry for more than three hours. This will ensure that the design and wood shell are firmly bonded during processing and will not move left or right, which would otherwise damage the entire design and ultimately result in defective products.

[0029] e. Use a fine needle-tip knife to carve patterns and characters according to their textures;

[0030] f. Separate the wooden shell from the design drawing and use a small high-speed rotating wheel to clean it, so that the surface of the wooden shell is relatively clean and smooth, meeting the requirements of beautiful and smooth brushwork of the handicraft;

[0031] g. After applying a protective layer on the surface of the cleaned wooden shell, apply varnish. In this way, the whole process of hollowing and carving a piece of wood is completed. The wood hollowing carving process of the present invention, because it follows the above steps, makes the wooden shell less prone to damage, accelerates the hollowing and engraving speed, has a high yield rate, and reduces losses. Since it is directly engraved and hollowed out on the drawing, the processing is easier, which greatly shortens the processing time. At the same time, since the required engraving and hollowing technology is reduced, the processing time is short, and the scrap rate during the processing is relatively low, thus greatly saving costs. At the same time, due to the role of the protective layer, an extra layer of protective film is added to the outside of the wooden shell, and the finished product is more beautiful and not easy to corrode or mildew.

[0032] Specific embodiment 2

[0033] In the hollow wood carving process of the present invention, based on the first embodiment, the protective layer can also be a mixture of 40%-70% by weight of transparent paint, 20%-35% of black sodium powder, and 10%-40% of yellow sodium powder melted at high temperature. Of course, the protective layer can also be made of other ingredients as long as it can protect the wooden shell and the entire craft. For example, a mixture of 40% by weight of clear paint, 20% of black powder, and 40% of yellow powder melted at high temperature can be used as a protective layer; a mixture of 70% by weight of clear paint, 20% of black powder, and 10% of yellow powder melted at high temperature can also be used as a protective layer; a mixture of 40% by weight of clear paint, 35% of black powder, and 25% of yellow powder melted at high temperature can also be used as a protective layer; of course, a mixture of 60% by weight of clear paint, 25% of black powder, and 15% of yellow powder melted at high temperature can also be used as a protective layer. Different amounts of yellow powder and black powder will cause the color of the wood to change. If the amount of yellow powder is large, the overall color will be yellowish, and if the amount of yellow powder is relatively small, the overall color will be darker. Different proportions of yellow powder, black powder, and clear paint can be selected according to the different types of wood to make the final product color closer to the desired color.

[0034] Specific embodiment three

[0035] The hollow wood carving process of the present invention can also be based on specific embodiment 1 and specific embodiment 2, and can also be that after step f and before step g, the carved wooden shell is soaked and bleached with oxygenated water and ammonia water, then dried, and then the wooden shell is soaked in pigment water formed by the fusion of black sodium powder and yellow sodium powder to match the color and then dried. In this way, the color of the wooden shell can be better. The carved wooden shell is soaked in the pigment water formed by the melting of yellow sodium powder and black sodium powder for 6-20 minutes. Different woods use different soaking times. If the wood is relatively loose, it absorbs better and the soaking time is shorter. If the wood material is relatively tight, it will not absorb well and needs to be soaked for a longer time.

[0036] Alternatively, the bonded design and wooden shell can be left to air dry for 24 hours to allow the adhesive layer to dry thoroughly, resulting in a better carving and perforation effect. Alternatively, the design and wooden shell can be dried using a hair dryer, which shortens the drying time, reduces the time required to complete the finished product, and improves efficiency. The wood used can be pear and boxwood, but can also be kalanchoe, mahogany, rosewood, rosewood, or sandalwood. This expands the range of wood materials available for perforation carving to include other woods, broadening the material selection.

[0037] Example 1: A method for carving hollow figures in seal script on pear wood is carried out according to the above-mentioned process flow of the present invention. Since the color of pear wood itself is uneven, the pear wood is made into a wooden shell and then carved. Since the wooden shell absorbs 80% of the pigment water after the fusion of yellow sodium powder and black sodium powder, a color matching pigment is added to the pigment water for color matching, and then the wooden shell is soaked for 15 minutes, the pear wood shell is taken out and coated with a protective layer.

[0038] Example 2 A method for carving hollow figures in seal characters on kaimu wood can be carried out according to the above-mentioned process flow of the present invention. The wood can be first soaked in oxygenated water and ammonia water, and then dried to white, that is, bleached, and then washed with clean water. The wood is then immersed in a pigment aqueous solution formed by dissolving yellow sodium powder and black sodium powder. Since the absorption of pigment water by kaimu is 30%, the required color can be added to the pigment water for color matching, or the amount of yellow sodium powder and black sodium powder can be adjusted as needed for color matching. After soaking for 20 minutes, the kaimu shell is taken out and dried, and then coated with a protective layer.

[0039] Example 3: A method for carving hollow figures in seal characters on boxwood is carried out according to the above-mentioned process flow of the present invention. The boxwood is made into a wooden shell with an absorption rate of 40% of the pigment water prepared by yellow sodium powder and black sodium powder, and then the color is matched. The hollow-carved wooden shell is soaked for 10 minutes, the boxwood shell is taken out, and the boxwood shell is dried with an electric blower and then coated with a protective layer.

[0040] Example 4: Other wood seal characters and hollow figure carving methods are carried out according to the above process flow of the present invention. The three examples described above are combined. The soaking time varies according to the different absorption capacity of the wood. Soak in pigment water for 6-20 minutes, then dry it and apply a protective layer.

[0041] The above only describes several specific embodiments of the present invention, but it cannot be regarded as the protection scope of the present invention. Any equivalent changes or modifications made according to the design spirit of the present invention should be considered to fall within the protection scope of the present invention.

Claims

1. A wood hollow carving process, characterized by: It includes the following steps: a. Select wood with surface grain spacing less than 0.1mm, make it into the required shape, then hollow out the wood to form a sheet-like wooden shell, and then grind the outer surface of the wooden shell to make it smooth; b. Apply glue to the back of the design drawing with the words and patterns to be engraved; c. Bond the back of the design drawing to the outer surface of the wooden shell by gluing; d. Allow the bonded design and wood shell to air dry or blow for more than three hours; e. Use a fine needle knife to make holes and engrave according to the patterns and text patterns; f. Separate the wooden shell from the design drawing and clean it using a small high-speed rotating wheel; g. Apply a protective layer on the cleaned wooden shell surface and then apply varnish.

2. The wood hollow carving process according to claim 1 is characterized by: The protective layer is a mixture of 40%-70% by weight of transparent paint, 20%-35% of black sodium powder and 10%-40% of yellow sodium powder melted at high temperature.

3. The wood hollow carving process according to claim 1 or 2, characterized in that: The design and the wooden shell bonded together are naturally dried for twenty-four hours.

4. The wood hollow carving process according to claim 1 or 2, characterized in that: The wood is one of pear wood, boxwood, khaki, mahogany, red sandalwood, rosewood and sandalwood.

5. The wood hollow carving process according to claim 1 or 2, characterized in that: The design and the wooden shell bonded together are dried using a hair dryer.

Citation Information

Patent Citations

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