Basa wood repairing method

Abstract

The invention relates to the technical field of wood processing and repairing, in particular to a repairing method for a damaged part of balsa wood. The traditional repairing method has the problems of non-uniform glue distribution, low utilization rate and easiness in polluting the outer surface of the balsa wood. In order to solve the problems, the invention provides a novel repairing method which comprises the following steps: forming a hole, using a specially-made upper repairing plug and a specially-made lower repairing plug, injecting glue into a containing groove of the lower repairing plug, and then plugging the repairing plugs into the hole, so that the glue is uniformly distributed and fills a gap. And after the glue is solidified, redundant parts are sawn off and polished, and repairing of the balsa wood is completed. According to the method, the gluing step is omitted, the repairing process is simplified, the distribution uniformity and the utilization rate of glue are improved, the glue is prevented from polluting the outer surface of the balsa wood, the repairing attractiveness and quality are improved, and the repairing stability and durability are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of wood processing and repairing, in particular to a method for repairing a damaged part of balsa wood. Background Art

[0002] Balsa, as a lightweight wood, is widely used in many fields such as construction, furniture and handicraft production. However, due to its material characteristics, balsa is prone to damage during use, which not only affects its service life but also reduces its appearance.

[0003] The traditional method of repairing balsa wood is to first drill a hole in the damaged area, ensure that the area of ​​the hole completely covers the entire damaged part, and then insert a repair plug into the drilled hole. In order to enhance the bonding strength between the repair plug and the balsa wood, it is usually necessary to apply glue on the outer surface of the repair plug. However, this method has many problems in actual operation. First, when the repair plug with glue on the outer wall is inserted into the hole, the glue is easily scraped out of the hole, resulting in uneven distribution of glue, and the repair effect is greatly reduced. Secondly, due to the low utilization rate of glue, not only does it increase the cost of repair, but it may also cause pollution to the outer surface of the balsa wood due to excessive glue, further affecting the appearance after repair. Summary of the invention

[0004] The present invention aims to provide a repair method that can omit the gluing step, improve the uniformity of glue distribution and effectively improve the utilization rate of glue. By optimizing the repair steps and structural design, the present invention strives to achieve a more efficient, beautiful and practical balsa wood repair effect.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A balsa wood repair method, comprising the following steps: Make holes in the damaged part of the balsa wood, and the area of ​​the holes should completely cover the damaged part; An upper repair plug and a lower repair plug are made of balsa wood. The upper repair plug is composed of a clamping part and an inserting part. The clamping part is truncated cone-shaped, the inserting part is cylindrical, and the inserting part is connected to the end of the clamping part with a smaller outer diameter. The lower repair plug is truncated cone-shaped, and a receiving groove is provided at the end with a smaller outer diameter. Fill the receiving groove with glue, insert the lower repair plug into the hole from the bottom upward, and then insert the upper repair plug into the hole from the top downward until the plug-in portion is inserted into the deepest part of the receiving groove, and the glue is squeezed out into the gap between the outer wall of the upper repair plug and the lower repair plug and the inner wall of the hole; After the glue has solidified, saw off the excess parts of the upper and lower repair plugs that protrude beyond the surface of the balsa wood.

[0006] In some embodiments, before drilling a hole at the damaged portion of the balsa wood, a drilling outline is first drawn around the damaged portion.

[0007] In some embodiments, the edge of the opening end of the receiving groove is chamfered.

[0008] In some embodiments, the plug-in portion is threadably matched with the receiving groove.

[0009] In some embodiments, after the upper repair plug and the lower repair plug are installed in place, the entire piece of balsa wood is rotated or shaken.

[0010] In some embodiments, during the process of opening the hole, a vacuuming device is used to continuously vacuum the area around the hole.

[0011] In some embodiments, after sawing off the excess portions of the upper repair plug and the lower repair plug protruding beyond the surface of the balsa wood, the cut sections of the upper repair plug and the lower repair plug are polished.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the traditional repair method, the glue is easily scraped out of the hole, resulting in uneven distribution and low utilization rate. The present invention uses the sealed annular cavity formed between the upper and lower repair plugs and the inner wall of the hole to ensure that the glue can quickly and evenly fill the entire cavity after being squeezed out, thereby improving the uniformity of glue distribution and utilization rate, and enhancing the firmness of the repair.

[0013] The present invention eliminates the step of applying glue on the outer surface of the repair plug through a unique structural design, thereby simplifying the repair process and improving the repair efficiency. The operator does not need to worry about uneven or excessive glue application, making the repair process more convenient. In addition, since the glue in the present invention is completely confined in the sealed annular cavity and will not overflow, the contamination of the outer surface of the balsa wood by the glue is effectively avoided, and the aesthetics of the repaired wood is maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the position of the drilling contour line of the present invention; Figure 2 is a schematic cross-sectional view of the balsa wood of the present invention when its holes are not blocked; Figure 3 is a schematic cross-sectional view of the balsa wood of the present invention after its holes are blocked; Figure 4 A detailed structural diagram of the upper repair plug of the present invention; Figure 5 It is a detailed structural diagram of the lower repair plug of the present invention.

[0015] In the figure: 1. balsa wood; 2. damaged part; 3. drilling outline; 4. hole; 5. upper repair plug; 501. snap-fit ​​part; 502. plug-in part; 6. lower repair plug; 601. receiving groove; 7. glue. DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0017] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-5 As shown, this embodiment provides a balsa wood repair method for repairing a damaged portion 2 on a balsa wood 1, comprising the following steps: A hole 4 is opened at the damaged portion 2 of the balsa wood 1, and the area of ​​the hole 4 needs to completely cover the entire damaged portion 2 to ensure the repair effect; An upper repair plug 5 and a lower repair plug 6 are made of balsa wood 1, both of which are made of balsa wood 1 and have good compatibility and bonding. The upper repair plug 5 is composed of a clamping part 501 and an inserting part 502 which are connected coaxially. The clamping part 501 is a truncated cone structure, and the inserting part 502 is a cylindrical structure. The outer diameter of the inserting part 502 is equal to the outer diameter of the end of the clamping part 501 with a smaller outer diameter, and the inserting part 502 is connected to the end of the clamping part 501 with a smaller outer diameter. The end of the clamping part 501 with a smaller outer diameter can be inserted into the hole 4, but the other end cannot be inserted into the hole 4. After the end of the clamping part 501 with a smaller outer diameter is inserted into the hole 4, there is a gap between the outer side walls of the clamping part 501 and the inserting part 502 and the inner side wall of the hole 4. The lower repair plug 6 is in a truncated cone structure, and the end with a smaller outer diameter can be inserted into the hole 4, while the other end cannot be inserted into the hole 4. After the end with a smaller outer diameter is inserted into the hole 4, a gap will be left between the outer wall of the lower repair plug 6 and the inner wall of the hole 4. The end with a smaller outer diameter of the lower repair plug 6 is provided with a receiving groove 601, and the inner diameter of the receiving groove 601 is greater than or equal to the outer diameter of the plug-in portion 502, and the two are plugged together; Fill the receiving groove 601 with glue 7, and insert the end of the lower repair plug 6 with the receiving groove 601 from the bottom to the top into the hole 4, and then insert the end of the upper repair plug 5 with the plug-in portion 502 from the top to the bottom into the hole 4, until the plug-in portion 502 is inserted into the deepest part of the receiving groove 601. During this period, the glue 7 in the receiving groove 601 is squeezed out into the gap between the outer wall of the upper repair plug 5 and the lower repair plug 6 and the inner wall of the hole 4. Since a sealed annular cavity is formed between the upper repair plug 5 and the lower repair plug 6 and the inner wall of the hole 4, the glue 7 can quickly fill the annular cavity after being squeezed out, and there will be no glue 7 overflowing outward; After the glue 7 solidifies, the excess parts of the upper repair plug 5 and the lower repair plug 6 protruding beyond the surface of the balsa wood 1 are sawed off to complete the repair of the balsa wood 1. At this time, the upper repair plug 5 and the lower repair plug 6 have been firmly combined with the balsa wood 1, achieving effective repair of the damaged part 2.

[0021] After the upper repair plug 5 and the lower repair plug 6 are respectively inserted into the two ends of the hole 4, a sealed annular cavity will be formed between the two and the inner wall of the hole 4, and the extrusion process of the glue 7 is also in the sealed annular cavity throughout the whole process, and the glue 7 will not overflow outward, and the glue 7 has fluidity before solidification. Therefore, after the glue 7 is squeezed out from the receiving groove 601, it can quickly fill the annular cavity because of its fluidity, which can save the process of coating the glue on the outer surface of the repair plug. In addition, in the traditional method of coating the glue on the outer surface of the repair plug, when the repair plug is inserted into the hole 4, the glue 7 on its outer surface is very easy to be scraped out of the hole 4, which on the one hand causes the glue 7 on the outer surface of the repair plug to be extremely unevenly distributed, and on the other hand, the utilization rate of the glue 7 is also low, and the squeezed glue 7 is also easy to pollute the outer surface of the balsa wood 1. Therefore, the present invention can improve the distribution uniformity of the glue 7 while omitting the glue coating step, and can also effectively improve the utilization rate of the glue 7.

[0022] In some embodiments, Figure 1 As shown, before opening a hole 4 at the damaged portion 2 of the balsa wood 1, a drilling outline 3 is first drawn around the damaged portion 2. By drawing the drilling outline 3 around the damaged portion 2 in advance, it can be ensured that the hole 4 opened subsequently can accurately cover the entire damaged portion 2, avoiding poor repair effects caused by the position offset or inappropriate size of the hole 4. At the same time, drawing the drilling outline 3 can also help the operator better understand the shape and size of the hole 4, so as to perform the repair operation more accurately, and improve the accuracy and efficiency of the repair.

[0023] In some embodiments, Figure 2-3 As shown, the edge of the opening end of the receiving groove 601 is chamfered. By chamfering the edge of the opening end of the receiving groove 601, the plug-in portion 502 can be inserted into the receiving groove 601 more smoothly, reducing the friction and resistance between the plug-in portion 502 and the edge of the receiving groove 601, thereby ensuring that the plug-in portion 502 can be smoothly and tightly inserted into the receiving groove 601, improving the stability and effect of the repair. At the same time, the chamfering process can also prevent the plug-in portion 502 from causing damage or deformation to the edge of the receiving groove 601 during the insertion process, further ensuring the quality and reliability of the repair.

[0024] In some embodiments, the plug-in portion 502 is threadedly matched with the receiving groove 601. By designing the threaded match between the plug-in portion 502 and the receiving groove 601, the plug-in portion 502 can be more tightly combined with the inner wall of the receiving groove 601 through the rotation of the thread during the insertion into the receiving groove 601, thereby further enhancing the bonding force and stability between the repair plug and the balsa wood 1. In addition, the threaded match design can also make the repair plug more convenient and quick during the insertion and fixing process, thereby improving the efficiency and convenience of the repair operation.

[0025] In some embodiments, after the upper repair plug 5 and the lower repair plug 6 are installed in place, the entire piece of balsa wood 1 is rotated or shaken. By rotating or shaking the entire piece of balsa wood 1, the glue 7 in the receiving groove 601 can be further promoted to be evenly distributed in the annular cavity, ensuring that the glue 7 can fully fill the gap between the repair plug and the inner wall of the hole 4, thereby improving the sealing and firmness of the repair.

[0026] In some embodiments, during the process of drilling the hole 4, a vacuuming device is used to continuously vacuum the area around the hole 4. The use of the vacuuming device can effectively remove wood chips and dust generated during the drilling process, preventing these impurities from entering the hole 4 or adhering to the area around the hole 4, thereby affecting the repair effect and the bonding force of the glue 7. At the same time, the vacuuming operation can also keep the working environment clean, improving the comfort and efficiency of the repair operation. In addition, timely removal of wood chips and dust can also reduce the burden of subsequent cleaning work, making the repair process smoother and more efficient.

[0027] In some embodiments, after sawing off the excess parts of the upper repair plug 5 and the lower repair plug 6 protruding from the surface of the balsa wood 1, the cut sections of the upper repair plug 5 and the lower repair plug 6 are polished. By polishing the cut sections, burrs and uneven parts caused by sawing can be removed, making the surface of the repaired balsa wood 1 smoother and flatter, improving the aesthetics and quality of the repair. In addition, the polishing process can also make the repaired part and the surrounding unrepaired balsa wood 1 surface more naturally transition, reduce the visual abruptness, and improve the overall aesthetic effect.

[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A method for repairing balsa wood, characterized in that: The following steps are involved: A hole (4) is formed at the damaged portion (2) of the balsa wood (1), and the area of ​​the hole (4) needs to completely cover the entire damaged portion (2); An upper repair plug (5) and a lower repair plug (6) are made of balsa wood (1). The upper repair plug (5) is composed of a clamping portion (501) and an inserting portion (502). The clamping portion (501) is truncated cone-shaped, and the inserting portion (502) is cylindrical. The inserting portion (502) is connected to an end of the clamping portion (501) with a smaller outer diameter. The lower repair plug (6) is truncated cone-shaped, and an accommodating groove (601) is provided at the end with a smaller outer diameter. Fill the receiving groove (601) with glue (7), insert the lower repair plug (6) from the bottom upward into the hole (4), and then insert the upper repair plug (5) from the top downward into the hole (4) until the plug-in portion (502) is inserted to the deepest part of the receiving groove (601), and the glue (7) is squeezed out into the gap between the outer side walls of the upper repair plug (5) and the lower repair plug (6) and the inner side wall of the hole (4); After the glue (7) solidifies, the excess parts of the upper repair plug (5) and the lower repair plug (6) protruding beyond the surface of the balsa wood (1) are sawed off.

2. A balsa wood repair method according to claim 1, characterized in that: Before a hole (4) is formed at a damaged portion (2) of balsa wood (1), a drilling outline (3) is drawn around the damaged portion (2).

3. The method for repairing balsa wood according to claim 1, characterized in that: The edge of the opening end of the receiving groove (601) is chamfered.

4. The method for repairing balsa wood according to claim 1, characterized in that: The plug-in portion (502) is threadably matched with the receiving groove (601).

5. The method for repairing balsa wood according to claim 1, characterized in that: After the upper repair plug (5) and the lower repair plug (6) are installed in place, the entire piece of balsa wood (1) is rotated or shaken.

6. The method for repairing balsa wood according to claim 1, characterized in that: During the process of opening the hole (4), a dust suction device is used to continuously perform dust suction operations around the hole (4).

7. The method for repairing balsa wood according to claim 1, characterized in that: After sawing off the excess parts of the upper repair plug (5) and the lower repair plug (6) protruding beyond the surface of the balsa wood (1), the cut sections of the upper repair plug (5) and the lower repair plug (6) are polished.

Images