Blanking and cutting method for plates for oak barrels

Abstract

The invention discloses a blanking and cutting method of a plate for an oak barrel, relates to the field of oak barrel manufacturing, and aims to solve the problem of low oak utilization rate of a traditional diameter cutting method. The method comprises the following steps that S1, wood is transversely placed on a cutting table; s2, the pith and plate thickness d (1 cm < = d < = 2 cm), the minimum available width l (l > = 3 cm) and the minimum included angle alpha (alpha > = 45 degrees) of the annual ring and the cutting face in the width direction of the plate are determined; s3, performing radial cutting near the pith center to obtain 3-4 first-grade plates and two pieces of rim charge; s4, judging whether the rim charges have available areas or not, if yes, entering S5, and if not, entering S6; s5, reversing the rim charge to enable the cutting surface to face downwards, cutting the rim charge by the saw blade approximately perpendicular to the annual ring to obtain an available plate and a new rim charge, and returning to S4; and S6, ending. According to the method, band saw cutting is adopted, the wood utilization rate reaches 80%, the plate quality is guaranteed, meanwhile, the oak resource utilization rate is increased, and the oak barrel machining cost is reduced.

Description

Technical Field

[0001] This solution relates to the field of oak barrel manufacturing, specifically a method for cutting and preparing oak barrel planks. Background Technology

[0002] Oak contains various aromatic compounds, and using oak barrels to store wine can improve its quality. Therefore, high-end wines are often stored in oak barrels. Oak trees grow slowly; a 20-year-old tree is still considered young, and 20-60 years old is considered middle-aged. Therefore, oak resources regenerate slowly, making them relatively scarce and keeping prices high. Improving the utilization rate of oak can reduce the processing costs of oak barrels.

[0003] Because oak is hard, it is generally not cut with a wire saw, but with a large saw blade. The conventional cutting methods include tangential cutting and radial cutting.

[0004] Tangential sawing involves cutting along the tangential direction of the wood's growth rings. The cut surface is parallel to the tangent of the trunk, perpendicular to the radius of the wood, and does not pass through the pith. Simply put, it's slicing along the "arc direction" of the trunk, with the saw kerf roughly tangential to the arc of the growth rings. Tangentially cut wood exhibits large-scale "landscape patterns," "wave patterns," or "cat's-eye luster" on its surface, offering rich variations in texture and high decorative appeal. Therefore, it is suitable for applications where aesthetics are prioritized over extreme stability, such as the production of decorative panels and high-end furniture panels.

[0005] Radial sawing involves sawing along the radius of the wood, with the cut surface passing through the pith and parallel to the wood's radius, perpendicular to the growth rings. Essentially, it's a radial cut from the pith outwards, with the saw kerf nearly perpendicular to the growth rings. Radial-cut lumber exhibits a straight, even, and regular grain. Oak radial-cut lumber often displays dense "silver lines," creating a unique "silver sheen." The wood is extremely stable, with a radial shrinkage rate of only 3%-5%, and minimal warping due to moisture changes. Furthermore, radial-cut lumber boasts high mechanical strength, a uniform structure, superior corrosion and abrasion resistance, and is less prone to cracking. It is suitable for applications requiring high stability and strength, such as the substrate for precision instruments, high-end solid wood flooring, ship components, building structural materials, and core components of musical instruments. Lumber obtained using radial sawing can be used to make oak barrels. However, the disadvantages include low yield (only 40%-50% wood utilization), high processing difficulty, and high cost.

[0006] Therefore, how to further improve the utilization rate of oak is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a method for cutting oak barrel boards.

[0008] The specific technical solution of the present invention to solve the above-mentioned technical problems is as follows: A method for cutting oak barrel planks includes the following steps: S1. Place the wood horizontally on the cutting table; S2. Determine the pith of the wood, the required board thickness d, the minimum usable width l, and the minimum angle α between the annual rings and the cutting surface in the width direction of the board; S3. Based on the annual ring distribution of the wood, three to four first-grade boards are cut radially near the pith to obtain two edge pieces. S4. Based on the thickness d, minimum usable width l, and minimum included angle α, check whether the edge material has a usable area. If so, proceed to the next step; otherwise, skip to step S6. S5. Reverse the edge material so that the cutting surface of the edge material is facing down. Cut the edge material with the saw blade roughly perpendicular to the direction of the growth rings to obtain at least one usable board and new edge material. Return to step S4. S6, End.

[0009] Furthermore, a band saw is used for cutting.

[0010] Furthermore, the minimum included angle α is greater than or equal to 45°.

[0011] Furthermore, d satisfies the following condition: 1cm≤d≤2cm.

[0012] Furthermore, the l ≥ 3 cm.

[0013] This cutting method achieves a wood utilization rate of 80%.

[0014] Specifically, this invention obtains three to four primary boards near the pith using a radial cutting method, ensuring a stable supply of high-quality boards needed for key parts of oak barrels. These primary boards possess the typical straight grain and excellent structural stability of radially cut wood, meeting the strength and deformation resistance requirements of oak barrels during long-term use. Simultaneously, this radial cutting process generates two slivers. Because these slivers are located outside the central area of ​​the trunk, further cutting them using traditional radial cutting methods is not only difficult but also yields extremely low output, typically resulting in them being treated as waste. The core innovation of this invention lies in the efficient utilization of these slivers. By setting the board thickness d (1cm ≤ d ≤ 2cm), minimum usable width l (l ≥ 3cm), and the minimum angle α between the growth rings and the cutting surface in the width direction of the board (α ≥ 45°), a scientific standard for sliver selection and recutting is established. In practice, the scrap material is reversed so that the original cutting surface faces down. This allows the saw blade to cut roughly perpendicular to the growth rings on the scrap. This cleverly avoids the limitations imposed by the irregular shape of the scrap. By repeatedly checking and cutting the scrap to ensure it has usable areas, at least one usable board meeting the aforementioned standards can be obtained from each scrap. Even if new scrap is generated after cutting, as long as it still meets the minimum usable width and angle requirements, cutting can continue until no more standard boards can be produced from the scrap. Through this combination of graded cutting and scrap recycling, this invention significantly increases wood utilization from 40%-50% in traditional radial cutting methods to 80%. While ensuring the quality of oak barrel boards, it greatly improves the utilization efficiency of scarce oak resources, effectively reduces the processing cost of oak barrels, and has significant economic value and industry promotion significance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first board cutting method for the oak barrel board of the present invention; Figure 2 This is a schematic diagram of the first edge cutting method for the oak barrel board cutting of the present invention; Figure 3 This is a schematic diagram of the third edge cutting method for the oak barrel board cutting of the present invention; Figure 4 This is a schematic diagram of the seventh step, edge cutting, in the method for cutting oak barrel boards according to the present invention. Figure 5 This is a schematic diagram of the overall cutting method for oak barrel boards according to the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the overall cutting method for oak barrel boards according to the present invention. Figure 2 .

[0016] The following is a list of component names represented by the reference numerals in the attached diagram: 1. Grade 1 board; 2. First edge material; 3. Second edge material; 4. Grade 2 board; 5. Third edge material; 6. Fourth edge material; 7. Fifth edge material; 8. Sixth edge material; 9. Grade 3 board; 10. Seventh edge material; 11. Eighth edge material; 12. Ninth edge material; 13. Tenth edge material; 14. Grade 4 board; 15. Eleventh edge material; 16. Twelfth edge material. Detailed Implementation

[0017] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0018] A method for cutting oak barrel planks includes the following steps: First, place the wood horizontally on the cutting table; Then, determine the pith of the wood, the required board thickness d, the minimum usable width l, and the minimum angle α between the growth rings and the cutting surface in the width direction of the board; Next, based on the annual ring distribution of wood, such as Figure 1 As shown, three primary boards 1 are obtained by radial cutting near the core, and two edge pieces, the first edge piece 2 and the second edge piece 3, are also obtained. Based on the thickness d, minimum usable width l, and minimum included angle α, check whether the first edge material 2 and the second edge material 3 have usable areas; in this example, both the first edge material 2 and the second edge material 3 have usable areas. Taking the first edge piece 2 as an example, such as Figure 2 As shown, the first edge material 2 is reversed so that the cutting surface of the first edge material 2 faces down. The saw blade is cut roughly perpendicular to the direction of the growth rings to obtain six usable secondary boards 4 and two new edge materials, which are referred to here as the third edge material 5 and the fourth edge material 6, respectively. The second edge material 3 is also processed in a similar way to obtain three secondary boards 4 and two new edge materials, which are referred to here as the fifth edge material 7 and the sixth edge material 8. Based on the thickness d, minimum usable width l, and minimum included angle α, we check whether the third edge piece 5, fourth edge piece 6, fifth edge piece 7, and sixth edge piece 8 have usable areas. In this example, they all still have usable areas. Taking the third edge piece 5 as an example, ... Figure 3 As shown, three pieces of grade 3 board 9 and the seventh edge piece 10 are obtained by cutting; similarly, the fourth edge piece 6 is cut into two pieces of grade 3 board 9 and the eighth edge piece 11; the fifth edge piece 7 is cut into two pieces of grade 3 board 9 and the ninth edge piece 12; the sixth edge piece 8 is cut into three pieces of grade 3 board 9 and the tenth edge piece 13. Furthermore, using thickness d, minimum usable width l, and minimum included angle α, we check whether the seventh edge piece 10, eighth edge piece 11, ninth edge piece 12, and tenth edge piece 13 have usable areas. In this example, the seventh edge piece 10 and the ninth edge piece 12 still have usable areas, such as... Figure 4 As shown, the seventh edge piece 10 was further cut to obtain a fourth-grade board 14 and an eleventh edge piece 15, and the ninth edge piece 12 was cut to obtain two fourth-grade boards 14 and a twelfth edge piece 16. The eighth edge piece 11, the tenth edge piece 13, the eleventh edge piece 15, and the twelfth edge piece 16 have no usable areas after observation, so the cutting is completed.

[0019] Using the above method, the timber was cut into 25 usable boards, with a utilization rate of over 80%.

[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for cutting oak barrel planks, comprising the following steps: S1. Place the wood horizontally on the cutting table; S2. Determine the pith of the wood, the required board thickness d, the minimum usable width l, and the minimum angle α between the annual rings and the cutting surface in the width direction of the board; S3. Based on the annual ring distribution of the wood, three to four first-grade boards are cut radially near the pith to obtain two edge pieces. S4. Based on the thickness d, minimum usable width l, and minimum included angle α, check whether the edge material has a usable area. If so, proceed to the next step; otherwise, skip to step S6. S5. Reverse the edge material so that the cutting surface of the edge material is facing down. Cut the edge material with the saw blade roughly perpendicular to the direction of the growth rings to obtain at least one usable board and new edge material. Return to step S4. S6, End.

2. The method for cutting oak barrel planks according to claim 1, characterized in that, Use a band saw for cutting.

3. The method for cutting oak barrel planks according to claim 2, characterized in that, The minimum included angle α is ≥ 45°.

4. The method for cutting oak barrel planks according to any one of claims 1-3, characterized in that, The condition d satisfies the following condition: 1cm≤d≤2cm.

5. The method for cutting oak barrel planks according to any one of claims 1-3, characterized in that... The value of l is ≥3cm.

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