A method for making jujube wood carving and preparation method thereof

Abstract

The invention discloses a method for making jujube wood carving, which comprises the following steps: material pretreatment stage: material selection, drying treatment; carving design stage: conception and design, pattern transfer; carving processing stage: rough carving, fine carving; post-processing stage: fine grinding, surface treatment, quality inspection and repair. Beneficial effects: improving material stability; optimizing material performance; improving carving accuracy; reducing material waste; enhancing the beauty of the work; improving the protection effect of the work; enriching artistic expression forms; inheriting and developing the jujube wood carving culture.

Description

Technical Field

[0001] The invention relates to the field of wood carving, and in particular to a method for making a jujube wood carving and a preparation method thereof. Background Art

[0002] As a high-quality wood, jujube wood has a unique position in the field of sculpture art. Its hard texture, beautiful and varied texture, can give natural and unique artistic charm to sculptures, and is therefore favored by woodcarving artists and collectors. However, for a long time, the production process of jujube wood carving has faced many difficulties, which has seriously restricted the development of jujube wood carving art and the improvement of the quality of works.

[0003] Traditional methods of making jujube wood carvings have serious deficiencies in terms of material processing. Since the moisture content of jujube wood is high when it is just cut, usually between 40% and 60%, if it is not properly dried, it is very easy to crack, deform and other problems during subsequent processing and use. The natural drying method is not only time-consuming, often taking several years, but also difficult to accurately control the moisture content and drying speed of the wood, resulting in uneven stress distribution inside the wood, increasing the risk of cracking. Some simple artificial drying methods, such as exposure to the sun or drying, can shorten the drying time, but they are prone to rapid water loss on the surface of the wood while the internal moisture is still high due to improper temperature and humidity control, further exacerbating the possibility of cracking and deformation of the wood, which greatly reduces the stability and durability of the carvings, seriously affecting their artistic value and collection value.

[0004] In terms of carving technology, the hardness of jujube wood is relatively high, which brings great difficulty to the carving process. When traditional hand-carving tools are used to process jujube wood, the tool wears quickly, the carving efficiency is low, and it is difficult to achieve complex and fine pattern carving. For example, when carving some detailed facial expressions of characters, feathers of flowers and birds, etc., due to the hard characteristics of jujube wood, it is difficult to achieve delicate and realistic effects by hand carving, and it is easy to have problems such as rough lines and unclear layers, which limits the artistic expression of jujube wood carving. At the same time, during the carving process, due to the tight fiber structure of jujube wood, the impact force during carving can easily cause the wood to crack, resulting in material waste and work defects, increasing production costs and difficulty.

[0005] In addition, there are many problems in the post-processing of jujube wood carving. Traditional surface treatment methods are often simply grinding and painting. During the grinding process, it is easy to cause scratches, dents and other defects on the surface of the carving due to improper sandpaper selection or irregular grinding techniques, affecting the aesthetics of the work. Although painting can protect the wood to a certain extent, some chemical paints may cover the natural texture and color of jujube wood, reducing its unique artistic charm. At the same time, chemical paints may also have problems such as poor environmental protection and insufficient durability. They cannot effectively protect the carvings in the long term, making them vulnerable to external environmental factors such as moisture, insect pests, ultraviolet rays, etc., shortening the service life of the works, which is not conducive to the inheritance and development of jujube wood carving art.

[0006] To sum up, the existing jujube wood carving methods have problems such as improper material processing, limited carving technology and imperfect post-processing. An innovative and scientific jujube wood carving method is urgently needed to overcome these difficulties, improve the quality and artistic value of jujube wood carving, and promote the art of jujube wood carving to a new height. Summary of the invention

[0007] In order to solve the above problems, especially to address the deficiencies in the prior art, the present invention provides a method for making jujube wood carvings and a preparation method thereof which can solve the above problems.

[0008] To achieve the above purpose, the present invention adopts the following technical means:

[0009] A method for making a jujube wood carving comprises the following steps:

[0010] Material pretreatment stage:

[0011] Material selection: Select jujube logs that are more than 30 years old, with a trunk diameter of 10-50 cm, and no obvious signs of disease, insect pests, or decay;

[0012] Drying treatment: First, place the selected jujube wood logs in a well-ventilated, dry and light-proof environment for natural air drying, so that the moisture content of the wood is initially reduced to 20%-30%; then put the air-dried jujube wood into a drying kiln for secondary drying, further reducing the moisture content of the wood to 8%-15%;

[0013] Carving design stage:

[0014] Conception and design: Based on the shape, texture, color and other characteristics of jujube wood, combined with the creative theme and artistic style, conception and design are carried out, and detailed carving drawings or three-dimensional models are drawn;

[0015] Pattern transfer: Use laser engraving, photocopy transfer or manual drawing to transfer the designed pattern to the surface of the jujube wood;

[0016] Carving process:

[0017] Rough carving: Use electric tools such as electric saws and electric planers to remove excess wood according to the pattern outline transferred to the surface of the jujube wood to form a rough blank. The processing allowance is controlled at 5-15 mm, and the rough blank is initially polished with coarse sandpaper;

[0018] Fine carving: Use hand-carving tools to finely carve the rough blank according to the detailed requirements of the design pattern, and perform local polishing at the right time, using medium sandpaper for polishing;

[0019] Post-processing stage:

[0020] Fine grinding: Use fine sandpaper to fully grind the entire sculpture, gradually progressing from low grit to high grit; for the sunken parts and details of the sculpture, use grinding rods, sandpaper rolls and other tools for manual grinding;

[0021] Surface treatment: clean the surface of the polished sculpture, apply a layer of natural plant protective oil, and place the sculpture in a well-ventilated and dry environment to dry naturally;

[0022] Quality inspection and restoration: Carry out quality inspection on the jujube wood carvings after surface treatment, and repair and improve any flaws, defects or deficiencies found.

[0023] Preferably, in the drying process, the air-drying time is 3-12 months.

[0024] Preferably, in the drying process, the temperature in the drying kiln is controlled at 40° C.-50° C., the humidity is controlled at 35%-45%, and the drying time is 20-40 days.

[0025] Preferably, in the rough carving, the mesh range of the coarse sandpaper is 60-100 mesh; in the fine carving, the mesh range of the medium sandpaper is 180-320 mesh; in the fine grinding, the mesh range of the fine sandpaper is 240-1500 mesh.

[0026] Preferably, in the surface treatment, the natural plant protective oil is tung oil, walnut oil or a mixture of both.

[0027] Preferably, in the surface treatment, the drying time is 24-48 hours.

[0028] Beneficial effects of the present invention:

[0029] 1. The present invention improves the stability of materials. By adopting a scientific and reasonable drying method, such as a combination of low-temperature drying and natural drying, the moisture content of the jujube wood can be accurately controlled, so that it reaches an ideal dry state before carving, effectively reducing the possibility of wood cracking and deformation during the carving process and subsequent use, greatly improving the stability and durability of the carved works, extending the service life of the works, and facilitating the long-term preservation and collection of jujube wood carvings.

[0030] 2. The present invention optimizes material properties. Through special pretreatment processes, such as steaming and soaking the jujube wood, the fiber structure of the wood can be made more compact and stable, while enhancing the toughness of the wood, making it easier to process during the carving process, reducing tool wear, improving carving efficiency, and reducing production costs.

[0031] 3. The present invention improves carving accuracy. Innovative carving tools and techniques, such as the use of laser engraving to assist manual carving, can achieve more detailed and complex patterns and shapes on jujube wood, improve the carving accuracy and artistic expression, and enable the carving works to better show the natural texture and unique charm of jujube wood, meeting the needs of modern consumers for high-quality and high-artistic value wood carvings.

[0032] 4. The present invention reduces material waste. Precise carving technology and reasonable planning can effectively avoid material waste caused by carving errors or wood cracking, improve the utilization rate of jujube wood, reduce production costs, and also reduce the waste of jujube wood resources, which is in line with the concept of sustainable development.

[0033] 5. The present invention enhances the aesthetics of the work. The fine grinding and polishing process, such as multiple sandpaper grinding and natural wax polishing, can make the surface of the jujube wood carving work smoother and more delicate, without scratches and flaws, fully showing the natural color and texture beauty of the jujube wood, enhancing the aesthetics and artistic value of the work, making it more ornamental and collectible.

[0034] 6. The present invention improves the protection effect of the work. The unique surface treatment technology, such as the use of environmentally friendly and weather-resistant natural paint or wood protective agent for treatment, can effectively prevent the erosion of the work by external environmental factors, such as moisture-proof, insect-proof, and UV-proof, without affecting the natural characteristics of jujube wood, further extending the service life of the work and ensuring that the work can remain in good condition for a long time.

[0035] 7. The present invention enriches artistic expressions. The production method of the present invention can be combined with other materials or processes, such as inlay, painting, etc., to create more diverse artistic expressions, inject new vitality into the art of jujube wood carving, meet the personalized needs of different consumers, and expand the market application scope of jujube wood carving.

[0036] 8. The present invention inherits and develops the jujube wood carving culture. By solving the key problems in the production process of jujube wood carving, the quality and artistic value of jujube wood carving are improved, making the traditional art form of jujube wood carving easier to be accepted and appreciated by people, which is conducive to attracting more people to pay attention to and learn the art of jujube wood carving, and promoting the inheritance and development of jujube wood carving culture. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1

[0039] A method for making a jujube wood carving comprises the following steps:

[0040] Material pretreatment stage:

[0041] Material selection: Select jujube logs that are 30 years old, have a trunk diameter of 10 cm, and have no obvious signs of disease, insect pests, or decay;

[0042] Drying treatment: First, place the selected jujube wood logs in a well-ventilated, dry and light-proof environment for natural air drying for 3 months, so that the moisture content of the wood is initially reduced to 20%; then put the air-dried jujube wood into a drying kiln for secondary drying. The temperature in the drying kiln is controlled at 40°C, the humidity is controlled at 35%, and the drying time is 40 days, further reducing the moisture content of the wood to 8%;

[0043] Carving design stage:

[0044] Conception and design: Based on the shape, texture, color and other characteristics of jujube wood, combined with the creative theme and artistic style, conception and design are carried out, and detailed carving drawings or three-dimensional models are drawn;

[0045] Pattern transfer: Use laser engraving, photocopy transfer or manual drawing to transfer the designed pattern to the surface of the jujube wood;

[0046] Carving process:

[0047] Rough carving: Use electric tools such as electric saws and electric planers to remove excess wood according to the pattern outline transferred to the surface of the jujube wood to form a rough blank. The processing allowance is controlled at 5 mm, and the rough blank is initially polished using coarse sandpaper with a mesh range of 60.

[0048] Fine carving: Use hand-carving tools to finely carve the rough blank according to the detailed requirements of the design pattern, and perform local grinding in a timely manner. Use medium sandpaper for grinding, and the mesh range of medium sandpaper is 180 mesh;

[0049] Post-processing stage:

[0050] Fine grinding: Use fine sandpaper to fully grind the entire sculpture. The mesh range of fine sandpaper is 240 mesh, and it gradually progresses from low mesh to high mesh. For the sunken parts and details of the sculpture, use tools such as sanding sticks and sandpaper rolls for manual grinding.

[0051] Surface treatment: clean the surface of the polished sculpture, then apply a layer of natural plant protective oil, such as tung oil, and place the sculpture in a well-ventilated and dry environment to dry naturally for 24 hours;

[0052] Quality inspection and restoration: Carry out quality inspection on the jujube wood carvings after surface treatment, and repair and improve any flaws, defects or deficiencies found.

[0053] Example 2

[0054] A method for making a jujube wood carving comprises the following steps:

[0055] Material pretreatment stage:

[0056] Material selection: Select jujube logs that are 40 years old, with a trunk diameter of 30 cm and no obvious signs of disease, insect pests or decay;

[0057] Drying treatment: First, place the selected jujube wood logs in a well-ventilated, dry and light-proof environment for natural air drying for 6 months, so that the moisture content of the wood is initially reduced to 25%; then put the air-dried jujube wood into a drying kiln for secondary drying. The temperature in the drying kiln is controlled at 45°C, the humidity is controlled at 40%, and the drying time is 30 days, further reducing the moisture content of the wood to 10%;

[0058] Carving design stage:

[0059] Conception and design: Based on the shape, texture, color and other characteristics of jujube wood, combined with the creative theme and artistic style, conception and design are carried out, and detailed carving drawings or three-dimensional models are drawn;

[0060] Pattern transfer: Use laser engraving, photocopy transfer or manual drawing to transfer the designed pattern to the surface of the jujube wood;

[0061] Carving process:

[0062] Rough carving: Use electric tools such as electric saws and electric planers to remove excess wood according to the pattern outline transferred to the surface of the jujube wood to form a rough blank. The processing allowance is controlled at 10 mm, and the rough blank is initially polished with coarse sandpaper. The mesh range of the coarse sandpaper is 80 mesh.

[0063] Fine carving: Use hand-carving tools to finely carve the rough blank according to the detailed requirements of the design pattern, and perform local grinding in a timely manner. Use medium sandpaper for grinding, and the mesh range of medium sandpaper is 280 mesh;

[0064] Post-processing stage:

[0065] Fine grinding: Use fine sandpaper to fully grind the entire sculpture. The mesh range of fine sandpaper is 1000 mesh, and it gradually progresses from low mesh to high mesh. For the sunken parts and details of the sculpture, use tools such as sanding sticks and sandpaper rolls for manual grinding.

[0066] Surface treatment: clean the surface of the polished sculpture, then apply a layer of natural plant protective oil, which is walnut oil, and place the sculpture in a well-ventilated and dry environment to dry naturally for 32 hours;

[0067] Quality inspection and restoration: Carry out quality inspection on the jujube wood carvings after surface treatment, and repair and improve any flaws, defects or deficiencies found.

[0068] Example 3

[0069] A method for making a jujube wood carving comprises the following steps:

[0070] Material pretreatment stage:

[0071] Material selection: Select jujube logs that are 50 years old, have a trunk diameter of 50 cm, and have no obvious signs of disease, insect pests, or decay;

[0072] Drying treatment: First, place the selected jujube wood logs in a well-ventilated, dry and light-proof environment for natural air drying for 12 months, so that the moisture content of the wood is initially reduced to 30%; then put the air-dried jujube wood into a drying kiln for secondary drying. The temperature in the drying kiln is controlled at 50°C, the humidity is controlled at 45%, and the drying time is 20 days, further reducing the moisture content of the wood to 15%;

[0073] Carving design stage:

[0074] Conception and design: Based on the shape, texture, color and other characteristics of jujube wood, combined with the creative theme and artistic style, conception and design are carried out, and detailed carving drawings or three-dimensional models are drawn;

[0075] Pattern transfer: Use laser engraving, photocopy transfer or manual drawing to transfer the designed pattern to the surface of the jujube wood;

[0076] Carving process:

[0077] Rough carving: Use electric tools such as electric saws and electric planers to remove excess wood according to the pattern outline transferred to the surface of the jujube wood to form a rough blank. The processing allowance is controlled at 15 mm, and the rough blank is initially polished using coarse sandpaper with a mesh range of 100.

[0078] Fine carving: Use hand-carving tools to finely carve the rough blank according to the detailed requirements of the design pattern, and perform local grinding in a timely manner. Use medium sandpaper for grinding, and the mesh range of medium sandpaper is 320 mesh;

[0079] Post-processing stage:

[0080] Fine grinding: Use fine sandpaper to fully grind the entire sculpture. The mesh range of fine sandpaper is 1500, and it gradually progresses from low mesh to high mesh. For the sunken parts and details of the sculpture, use tools such as sanding sticks and sandpaper rolls for manual grinding.

[0081] Surface treatment: clean the surface of the polished sculpture, then apply a layer of natural plant protective oil, which is a mixture of tung oil and walnut oil. Place the sculpture in a well-ventilated and dry environment to dry naturally for 48 hours.

[0082] Quality inspection and restoration: Carry out quality inspection on the jujube wood carvings after surface treatment, and repair and improve any flaws, defects or deficiencies found.

[0083] Working principle of jujube wood carving production method:

[0084] Material pretreatment stage

[0085] Drying treatment principle:

[0086] During the natural drying stage, the natural flow of air is used to take away some of the moisture in the jujube wood, allowing the moisture inside the wood to slowly and evenly dissipate outwards, initially reducing the moisture content of the wood, reducing the stress concentration inside the wood caused by rapid water loss, and reducing the risk of cracking.

[0087] When drying in a drying kiln, a stable drying environment is created by precisely controlling the temperature and humidity in the kiln. The moderately increased temperature accelerates the thermal movement of water molecules in the wood, making it easier for them to migrate from the inside of the wood to the surface and evaporate; while the controlled humidity prevents excessive water loss from the wood surface, keeps the moisture content gradient inside and outside the wood within a reasonable range, and avoids excessive internal stress caused by excessive moisture content differences, thereby further reducing the possibility of wood cracking and deformation, and allowing the wood to reach a stable state suitable for carving.

[0088] Carving design stage

[0089] Concept and design principle: According to the natural shape, texture, color change and material characteristics of jujube wood (such as hardness, toughness, etc.), combined with the artistic theme, style and aesthetic needs that the creator wants to express, the overall planning and layout design is carried out. The natural beauty of jujube wood is fully utilized and integrated into the sculpture works, so that the works have the uniqueness of artistic creation and can show the natural charm of wood, achieving the harmonious unity of artificiality and nature.

[0090] Pattern transfer principle: Whether it is laser engraving, photocopy transfer or manual drawing, the designed pattern is copied to the surface of the jujube wood in some way to provide a clear and accurate outline and reference for subsequent engraving. Laser engraving uses a high-energy laser beam to burn the pattern on the wood surface, which has the characteristics of high precision and high efficiency; photocopy transfer transfers the pattern from paper to wood through chemical or physical methods; manual drawing relies on manual painting techniques to draw the pattern on the wood surface. The purpose of these methods is to ensure the accurate positioning and presentation of the engraved pattern, laying the foundation for subsequent engraving processing.

[0091] Carving process

[0092] Principle of rough carving: Use electric tools such as electric saws and electric planers to cut according to the outline of the pattern transferred to the surface of the jujube wood, quickly remove a large amount of excess wood, and form the general shape of the carving. This process follows the fiber structure and mechanical principles of wood, and cuts along the direction of the wood grain, which can reduce excessive damage to wood fibers and reduce the risk of wood cracking during processing, while improving processing efficiency and surface flatness. Preliminary grinding uses the grinding effect of coarse sandpaper to remove obvious traces and burrs left after power tool processing, making the surface smoother and smoother, which is convenient for observation and operation of subsequent fine carving processes, and also provides better basic conditions for the subsequent cutting of carving tools.

[0093] Principle of fine carving: Use various hand-carved knives, and use cutting, shaving, shoveling, digging, carving and other knife techniques for fine processing according to different carving parts and detail requirements. According to the design pattern, the carver controls the force, angle and movement trajectory of the knife to shape various shapes, lines and textures on the wood surface, showing the rich details and artistic effects of the work. In the carving process, the hardness, toughness and texture direction of the wood should be fully considered to avoid carving errors or wood damage due to improper force or violation of the characteristics of the wood. At the same time, the natural texture of the wood is used to enhance the layering and three-dimensional sense of the work, making the carving more vivid and realistic.

[0094] Post-processing stage

[0095] Fine grinding principle: Use fine sandpaper to grind the sculptures from low to high mesh numbers. Use low-mesh sandpaper to remove small flaws, knife marks and uneven parts on the surface of the sculptures. As the number of sandpaper increases, the grinding particles become finer and finer, which can further refine the surface of the wood, making the texture of the wood surface clearer, smoother and more delicate. For concave parts and details, use sanding sticks, sandpaper rolls and other tools for manual grinding because these parts are difficult to evenly grind with flat sandpaper. Manual grinding can better adapt to their shape and position, ensuring that each part can achieve consistent smoothness and fineness, and improving the overall texture of the work.

[0096] Surface treatment principle: clean the surface of the polished carvings to remove dust and sawdust on the surface to prevent them from affecting the penetration and adhesion of the protective oil. After applying natural plant-based protective oil (such as tung oil, walnut oil, etc.), the oil components in the protective oil can penetrate into the pores of the wood and fill the microstructure of the wood. On the one hand, it increases the hardness and wear resistance of the wood surface, preventing scratches and wear during daily use and transportation; on the other hand, the protective oil forms a protective film on the surface of the wood, isolating the external moisture, air and harmful microorganisms (such as mold, moths, etc.), and plays a role in waterproofing, moisture-proofing, crack-proofing, and insect-proofing, thereby extending the service life of the carvings. Placing the works in a well-ventilated and dry environment to dry naturally is to allow the solvent in the protective oil to evaporate, so that the oil components can fully solidify and polymerize, forming a stable and continuous protective film, ensuring the durability and stability of the protective effect.

[0097] Quality inspection and repair principle: Through comprehensive quality inspection of the jujube wood carvings after surface treatment, including appearance inspection (such as the integrity of the carving details, surface flatness, color uniformity, etc.), structure inspection (such as whether the connection of each component is firm, whether there is any sign of looseness, etc.) and protective effect inspection (such as whether the protective oil is evenly applied, whether there is any missing or bubbling, etc.), the existing flaws, defects or deficiencies are discovered in time. For the problems found, the corresponding repair methods are adopted according to the specific situation, such as using a fine carving knife to re-carve the parts with unclear carving lines, using sandpaper to polish and repair the surface scratches, and re-applying the uneven protective oil parts, etc., to ensure that each jujube wood carving meets the requirements of high quality and artistic value, and is presented to consumers or collectors in the best state.

[0098] The examples given in the present invention are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A method for making jujube wood carving, characterized in that: The following steps are involved: Material pretreatment stage: Material selection: Select jujube logs that are more than 30 years old, with a trunk diameter of 10-50 cm, and have no obvious signs of disease, insect pests, or decay; Drying treatment: First, place the selected jujube wood logs in a well-ventilated, dry and light-proof environment for natural air drying, so that the moisture content of the wood is initially reduced to 20%-30%; then put the air-dried jujube wood into a drying kiln for secondary drying, further reducing the moisture content of the wood to 8%-15%; Carving design stage: Conception and design: Based on the shape, texture, color and other characteristics of jujube wood, combined with the creative theme and artistic style, conception and design are carried out, and detailed carving drawings or three-dimensional models are drawn; Pattern transfer: Use laser engraving, photocopy transfer or manual drawing to transfer the designed pattern to the surface of the jujube wood; Carving process: Rough carving: Use electric tools such as electric saws and electric planers to remove excess wood according to the pattern outline transferred to the surface of the jujube wood to form a rough blank. The processing allowance is controlled at 5-15 mm, and the rough blank is initially polished with coarse sandpaper; Fine carving: Use hand-carving tools to finely carve the rough blank according to the detailed requirements of the design pattern, and polish it locally when appropriate, using medium sandpaper for polishing; Post-processing stage: Fine grinding: Use fine sandpaper to fully grind the entire sculpture, gradually progressing from low grit to high grit; for the sunken parts and details of the sculpture, use grinding rods, sandpaper rolls and other tools for manual grinding; Surface treatment: clean the surface of the polished sculpture, apply a layer of natural plant protective oil, and place the sculpture in a well-ventilated and dry environment to dry naturally; Quality inspection and restoration: Carry out quality inspection on the jujube wood carvings after surface treatment, and repair and improve any flaws, defects or deficiencies found.

2. The method for making a jujube wood carving according to claim 1, characterized in that: In the drying process, the air-drying time is 3-12 months.

3. The method for making a jujube wood carving according to claim 2, characterized in that: During the drying process, the temperature in the drying kiln is controlled at 40° C.-50° C., the humidity is controlled at 35%-45%, and the drying time is 20-40 days.

4. The method for making a jujube wood carving according to claim 1, characterized in that: In the rough carving, the mesh number of the coarse sandpaper ranges from 60 to 100 meshes; in the fine carving, the mesh number of the medium sandpaper ranges from 180 to 320 meshes; in the fine grinding, the mesh number of the fine sandpaper ranges from 240 to 1500 meshes.

5. The method for making a jujube wood carving according to claim 1, characterized in that: In the surface treatment, the natural plant protective oil is tung oil, walnut oil or a mixture of the two.

6. The method for making a jujube wood carving according to claim 5, characterized in that: In the surface treatment, the drying time is 24-48 hours.