Method for cutting small-dimension lumber

Abstract

This invention discloses a method for cutting small-diameter solid wood, relating to the furniture industry, comprising the following steps: Step 1: Adjusting the positions of the first and second rollers; Step 2: Connecting the air outlet and vacuum suction port; Step 3: Turning on the superheated steam furnace and vacuum generator; Step 4: Conveying the solid wood; Step 5: Cleaning the surface of the solid wood through the vacuum suction port of the first drying mechanism, and spraying superheated steam onto the surface of the solid wood through the air outlet to eliminate stress; Step 6: Cutting the solid wood into timber squares using a band saw blade; Step 7: Cleaning the surface of the timber squares through the vacuum suction port of the second drying mechanism, and spraying superheated steam onto the surface of the timber squares through the air outlet to eliminate stress on the surfaces of the three timber squares. This invention uses a band saw blade to cut solid wood into three timber squares arranged in a row in one go, improving cutting efficiency, and uses two drying mechanisms to heat the solid wood and timber squares respectively, eliminating internal stress in the wood through superheated steam, and avoiding defects on the surface of the timber squares.

Description

Technical Field

[0001] This invention relates to the field of furniture, and in particular to a method for cutting small-diameter solid wood. Background Technology

[0002] With the implementation of the Natural Forest Protection Project, timber production has been decreasing year by year, resulting in fewer and fewer large-diameter timbers available for use. As a result, the proportion of small-diameter timber from plantations entering thinning and main felling is increasing. However, due to the small diameter (8cm to 14cm) of small-diameter timber from plantations, there is significant stress during its growth. During the cutting process, the timber squares formed from the outer layer of solid wood are prone to defects such as surface cracking, internal cracking, deformation, and shrinkage, which limits the utilization of small-diameter timber.

[0003] Therefore, a cutting method that can initially eliminate stress before and after cutting is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a method for cutting small-diameter solid wood to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a method for cutting small-diameter solid wood, comprising the following steps:

[0006] Step 1: Adjust the positions of the first and second rollers to adjust the position of the band saw blade;

[0007] Step 2: Connect the drying mechanism, dehumidifier and vacuum generator in sequence, and connect the air outlet to the hot steam furnace;

[0008] Step 3: Turn on the superheated steam furnace. The superheated steam furnace sprays superheated steam onto the solid wood surface through the steam outlet. Turn on the vacuum generator.

[0009] Step 4: Place the solid wood on the first conveyor line and transport it in a straight line.

[0010] Step 5: The solid wood passes through the first drying unit. The vacuum suction holes at both ends of the drying unit clean the surface of the solid wood, and the air outlet at the center of the drying unit sprays superheated steam onto the surface of the solid wood to preheat it and eliminate the stress on the surface of the solid wood.

[0011] Step Six: Drive the band saw blade to rotate, and cut the solid wood into three strips using the band saw blade;

[0012] Step 7: After cutting, the solid wood passes through the second drying mechanism. The vacuum suction holes at both ends of the drying mechanism clean the surface of the wood strips. The air outlet at the center of the drying mechanism sprays superheated steam onto the surface of the wood strips to eliminate the stress on the surface of the three wood strips.

[0013] Step 7: The three timbers are conveyed to the second conveyor line;

[0014] The solid wood veneer bonding method relies on the following cutting mechanism for cutting: a U-shaped frame is symmetrically arranged between two conveyor lines, a drying mechanism is symmetrically arranged between the two U-shaped frames, a limiting frame is symmetrically arranged between the two U-shaped frames, a first gap for solid wood to pass through is provided between the two limiting frames, a band saw blade is arranged between the limiting frame and the solid wood, a first support and a second support are provided with a first roller and a second roller respectively, a first support is provided on each inner wall of the U-shaped frame, a second support is provided at both the upper and lower ends of the limiting frame, a sliding groove is symmetrically provided at the end of the first support and the second support near the solid wood, the ends of the first roller and the second roller are detachably set inside the two sliding grooves respectively, the first roller and the second roller are connected by a band saw blade drive, an air outlet is arrayed at the center of the drying mechanism, the air outlet is connected to a superheated steam furnace, vacuum suction holes are arrayed at both ends of the drying mechanism, the suction holes, dehumidifier and vacuum generator are connected in sequence.

[0015] Preferably, both drying mechanisms include hollow plates and hollow tubes, the hollow tubes are symmetrically arranged, the hollow plates are symmetrically arranged, a second gap for solid wood to pass through is provided between the two hollow plates, two hollow tubes are respectively arranged at both ends of the hollow plates, a heat insulation plate is sandwiched between the hollow tubes and the hollow plates, the air outlet array is arranged on the hollow plates, and the vacuum suction holes are evenly spaced on the hollow tubes.

[0016] Preferably, the second gaps of the two drying mechanisms are perpendicular to each other, and the extension direction of the second gap of the second drying mechanism is parallel to the arrangement direction of the timber.

[0017] Preferably, it also includes a transition roller, which is disposed directly above the first gap. The transition roller, the first roller of the second support, and the second roller of the second support are connected by a band saw blade drive, and the band saw blade is bent into a W shape.

[0018] Preferably, both hollow tubes are bent into a U-shape, and the two hollow tubes abut each other to form a rectangular frame, with the heat insulation plate surrounding the hollow plate.

[0019] Preferably, the two drying mechanisms further include a waterproof box and a door curtain. The two hollow panels are respectively disposed on the two opposite inner walls of the waterproof box, and the door curtain is disposed on the opposite side walls of the waterproof box. The opposite side walls of the waterproof box are respectively provided with an outlet and an inlet, and the door curtain is disposed on the outlet and inlet.

[0020] Preferably, it further includes a left drive roller, a right drive roller, and a key switch, wherein the left drive roller and the right drive roller are electrically connected to the key switch, and the two ends of the band saw blade are respectively disposed on the left drive roller and the right drive roller.

[0021] Preferably, the first roller and the second roller are arranged sequentially along the radial direction of the solid wood.

[0022] Preferably, step one further includes the following steps: selecting an insulation board according to the specifications of the solid wood and installing it inside the first drying unit; and selecting an insulation board according to the specifications of the three timbers and installing it inside the second drying unit.

[0023] Preferably, step six specifically includes the following steps: controlling the start of the left or right active roller via a key switch, the left or right active roller pulls one end of the band saw blade to rotate, and the band saw blade cuts the solid wood into three strips of wood.

[0024] The beneficial effects of this invention are as follows: the study shows that the surface stress of wood is significantly affected by temperature and relative humidity. This invention uses a band saw blade to cut solid wood into three strips arranged in a row in one go, improving cutting efficiency. Two drying mechanisms heat the solid wood and the strips separately, using superheated steam to eliminate internal stress in the wood and prevent surface defects in the strips. Attached Figure Description

[0025] The accompanying drawings further illustrate the invention, but the embodiments in the drawings do not constitute any limitation on the invention.

[0026] Figure 1 This is a schematic diagram of the structure of a cutting mechanism provided in an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the structure of the limiting frame provided in an embodiment of the present invention.

[0028] Figure 3 A schematic diagram of the drying mechanism provided in an embodiment of the present invention.

[0029] Reference numerals in the attached drawings: 1: U-shaped frame; 2: first support; 3: limiting frame; 4: first roller; 5: second roller; 6: second support; 7: drying mechanism; 8: transition roller. Detailed Implementation

[0030] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] It should be noted that, in this invention, unless otherwise stated, when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or may have an intervening element present. When an element is referred to as "connected to" another element, it can be directly connected to the other element or may have an intervening element present. The directional terms used, such as "up," "down," "left," and "right," generally refer to... Figure 1 The directions shown are up, down, left, and right. "Inner" and "outer" refer to the inner and outer parts of a specific outline. "Far" and "near" refer to the distance or proximity relative to a particular component.

[0032] A method for cutting small-diameter solid wood, applied to, for example Figures 1-3 The cutting mechanism shown includes the following steps:

[0033] Step 1: Adjust the positions of the first roller 4 and the second roller 5, and adjust the position of the band saw blade by adjusting the first roller 4 and the second roller 5;

[0034] Step 2: Connect the drying unit 7, the dehumidifier and the vacuum generator in sequence, and connect the air outlet to the hot steam furnace;

[0035] Step 3: Turn on the superheated steam furnace. The superheated steam furnace sprays superheated steam onto the solid wood surface through the steam outlet. Turn on the vacuum generator.

[0036] Step 4: Place the solid wood on the first conveyor line and transport it in a straight line.

[0037] Step 5: The solid wood passes through the first drying mechanism 7. The vacuum suction holes at both ends of the drying mechanism 7 clean the surface of the solid wood, and the air outlet at the center of the drying mechanism 7 sprays superheated steam onto the surface of the solid wood to preheat it and eliminate the stress on the surface of the solid wood.

[0038] Step Six: Drive the band saw blade to rotate, and cut the solid wood into three strips using the band saw blade;

[0039] Step 7: After cutting, the solid wood passes through the second drying mechanism 7. The vacuum suction holes at both ends of the drying mechanism 7 clean the surface of the wood, cleaning the three wood pieces. The air outlet at the center of the drying mechanism 7 sprays superheated steam onto the surface of the wood to eliminate the stress on the surface of the three wood pieces.

[0040] Step 7: The three timbers are conveyed to the second conveyor line;

[0041] The solid wood veneer bonding method relies on the following cutting mechanism for cutting: a U-shaped frame 1 is symmetrically arranged between two conveyor lines, a drying mechanism 7 is symmetrically arranged between the two U-shaped frames 1, a limiting frame 3 is symmetrically arranged between the two U-shaped frames 1, a first gap for solid wood to pass through is provided between the two limiting frames 3, a band saw blade is arranged between the limiting frame 3 and the solid wood, a first support 2 and a second support 6 are both provided with a first roller 4 and a second roller 5, a first support 2 is provided on each inner wall of the U-shaped frame 1, a second support 6 is provided at both the upper and lower ends of the limiting frame 3, a sliding groove is symmetrically provided at the end of the first support 2 and the second support 6 near the solid wood, the ends of the first roller 4 and the second roller 5 are detachably arranged in the two sliding grooves, the first roller 4 and the second roller 5 are connected by a band saw blade drive, an air outlet is arrayed at the center of the drying mechanism 7, the air outlet is connected to a superheated steam furnace, vacuum suction holes are arrayed at both ends of the drying mechanism 7, the suction holes, dehumidifier and vacuum generator are connected in sequence.

[0042] Both drying mechanisms 7 include hollow plates and hollow tubes. The hollow tubes are symmetrically arranged, and the hollow plates are symmetrically arranged. A second gap for solid wood to pass through is provided between the two hollow plates. Two hollow tubes are respectively arranged at both ends of the hollow plates. A heat insulation plate is sandwiched between the hollow tubes and the hollow plates. The air outlet array is arranged on the hollow plates, and the vacuum suction holes are evenly spaced on the hollow tubes.

[0043] The second gaps of the two drying mechanisms 7 are perpendicular to each other, and the extension direction of the second gap of the second drying mechanism 7 is parallel to the arrangement direction of the timber.

[0044] It also includes a transition roller 8, which is located directly above the first gap. The transition roller 8, the first roller 4 of the second support 6 and the second roller 5 of the second support 6 are connected by a band saw blade drive, and the band saw blade is bent into a W shape.

[0045] Both hollow tubes are bent into a U-shape, and the two hollow tubes abut each other to form a rectangular frame. The heat insulation plate is arranged around the hollow plate.

[0046] The two drying mechanisms 7 also include a waterproof box and a door curtain. The two hollow panels are respectively disposed on the two opposite inner walls of the waterproof box, and the door curtain is disposed on the opposite side walls of the waterproof box. The opposite side walls of the waterproof box are respectively provided with an outlet and an inlet, and the door curtain is disposed on the outlet and inlet.

[0047] It also includes a left drive roller, a right drive roller, and a key switch. The left drive roller and the right drive roller are electrically connected to the key switch. The two ends of the band saw blade are respectively located on the left drive roller and the right drive roller.

[0048] The first roller 4 and the second roller 5 are arranged sequentially along the radial direction of the solid wood.

[0049] Step one also includes the following steps: selecting insulation boards according to the specifications of the solid wood and installing them inside the first drying unit 7; selecting insulation boards according to the specifications of the three timbers and installing them inside the second drying unit 7.

[0050] Step six specifically includes the following steps: control the left or right drive roller to start via the key switch. The left or right drive roller pulls one end of the band saw blade to rotate, and the band saw blade cuts the solid wood into three strips of wood.

[0051] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these should all be considered to be within the scope of this specification.

Claims

1. A method of cutting small-dimensioned solid wood, characterized by: Includes the following steps: Step 1: Adjust the positions of the first and second rollers to adjust the position of the band saw blade; Step 2: Connect the drying mechanism, dehumidifier and vacuum generator in sequence, and connect the air outlet to the hot steam furnace; Step 3: Turn on the superheated steam furnace. The superheated steam furnace sprays superheated steam onto the solid wood surface through the steam outlet. Turn on the vacuum generator. Step 4: Place the solid wood on the first conveyor line and transport it in a straight line. Step 5: The solid wood passes through the first drying unit. The vacuum suction holes at both ends of the drying unit clean the surface of the solid wood, and the air outlet at the center of the drying unit sprays superheated steam onto the surface of the solid wood to preheat it and eliminate the stress on the surface of the solid wood. Step Six: Drive the band saw blade to rotate, and cut the solid wood into three strips using the band saw blade; Step 7: After cutting, the solid wood passes through the second drying mechanism. The vacuum suction holes at both ends of the drying mechanism clean the surface of the wood strips. The air outlet at the center of the drying mechanism sprays superheated steam onto the surface of the wood strips to eliminate the stress on the surface of the three wood strips. Step 7: The three timbers are conveyed to the second conveyor line; The solid wood veneer bonding method relies on the following cutting mechanism for cutting: a U-shaped frame is symmetrically arranged between two conveyor lines, a drying mechanism is symmetrically arranged between the two U-shaped frames, a limiting frame is symmetrically arranged between the two U-shaped frames, a first gap for solid wood to pass through is provided between the two limiting frames, a band saw blade is arranged between the limiting frame and the solid wood, a first support and a second support are provided with a first roller and a second roller respectively, a first support is provided on each inner wall of the U-shaped frame, a second support is provided at both the upper and lower ends of the limiting frame, a sliding groove is symmetrically provided at the end of the first support and the second support near the solid wood, the ends of the first roller and the second roller are detachably set inside the two sliding grooves respectively, the first roller and the second roller are connected by a band saw blade drive, an air outlet is arrayed at the center of the drying mechanism, the air outlet is connected to a superheated steam furnace, vacuum suction holes are arrayed at both ends of the drying mechanism, the suction holes, dehumidifier and vacuum generator are connected in sequence.

2. The method for cutting small-diameter solid wood according to claim 1, characterized in that: Both drying mechanisms include hollow plates and hollow tubes. The hollow tubes are symmetrically arranged, and the hollow plates are symmetrically arranged. A second gap for solid wood to pass through is provided between the two hollow plates. Two hollow tubes are respectively arranged at both ends of the hollow plates. A heat insulation plate is sandwiched between the hollow tubes and the hollow plates. The air outlet array is arranged on the hollow plates, and the vacuum suction holes are evenly spaced on the hollow tubes.

3. The method for cutting small-diameter solid wood according to claim 2, characterized in that: The second gaps of the two drying mechanisms are perpendicular to each other, and the extension direction of the second gap of the second drying mechanism is parallel to the arrangement direction of the timber.

4. The method for cutting small-diameter solid wood according to claim 2, characterized in that: It also includes a transition roller, which is positioned directly above the first gap. The transition roller, the first roller of the second support, and the second roller of the second support are connected by a band saw blade drive, and the band saw blade is bent into a W shape.

5. The method for cutting small-diameter solid wood according to claim 2, characterized in that: Both hollow tubes are bent into a U-shape, and the two hollow tubes abut each other to form a rectangular frame. The heat insulation plate is arranged around the hollow plate.

6. The method for cutting small-diameter solid wood according to claim 2, characterized in that: The two drying mechanisms also include a waterproof box and a door curtain. The two hollow panels are respectively disposed on the two opposite inner walls of the waterproof box, and the door curtain is disposed on the opposite side walls of the waterproof box. The opposite side walls of the waterproof box are respectively provided with an outlet and an inlet, and the door curtain is disposed on the outlet and the inlet.

7. The method for cutting small-diameter solid wood according to claim 3, characterized in that: It also includes a left drive roller, a right drive roller, and a key switch. The left drive roller and the right drive roller are electrically connected to the key switch. The two ends of the band saw blade are respectively located on the left drive roller and the right drive roller.

8. The method for cutting small-diameter solid wood according to claim 1, characterized in that: The first roller and the second roller are arranged sequentially along the radial direction of the solid wood.

9. The method for cutting small-diameter solid wood according to claim 1, characterized in that: Step 1 also The process includes the following steps: selecting insulation boards according to the specifications of the solid wood and installing them inside the first drying unit; selecting insulation boards according to the specifications of the three timbers and installing them inside the second drying unit.

10. The method for cutting small-diameter solid wood according to claim 1, characterized in that: Step six specifically includes the following steps: control the left or right drive roller to start via the key switch. The left or right drive roller pulls one end of the band saw blade to rotate, and the band saw blade cuts the solid wood into three strips of wood.

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