A cutting device for furniture manufacturing

Abstract

The present application relates to the field of furniture production, and discloses a material plate cutting device for furniture manufacturing, which comprises a frame, a driving assembly, a plurality of main band saw wheels, a plurality of transmission wheel sets corresponding to the main band saw wheels and band saw blades. The frame is configured to form a cavity for wood to penetrate along a first direction. The driving assembly comprises a driving motor and a main shaft extending along the first direction. The main shaft is rotatably connected to the inside of the cavity, and the driving motor is in driving connection with the main shaft. The main band saw wheels are uniformly and spacedly fixed to the main shaft along the first direction. The transmission wheel sets are uniformly and spacedly distributed in the cavity along the first direction. Adjacent two groups of transmission wheel sets are staggered. The main shaft and the transmission wheel sets are sequentially and spacedly distributed in the cavity along a second direction. One end of the band saw blade is wound on the transmission wheel set along a serpentine trajectory, and the other end of the band saw blade is in driving connection with the main band saw wheel. The lower end of the band saw blade is bent to form a serpentine trajectory. A plurality of plates can be sawn at one time, and the cutting surfaces of the sawn plates are parallel to each other.

Description

Technical Field

[0001] This invention relates to the field of furniture manufacturing, and in particular to a cutting device for furniture manufacturing boards. Background Technology

[0002] In modern furniture manufacturing, traditional log cutting machines work by fixing the wood to a cutting table on one side of the machine. The cutting table drives the wood horizontally through the band saw, which cuts the wood. After cutting, the planks are removed, the wood's position is adjusted, and it is driven to move in the opposite direction for another cut, repeating this process to divide the log into multiple planks. Traditional log cutting machines can only cut one plank at a time, making repeated cutting tedious. Furthermore, after multiple cuts by the band saw, the wood's cross-section becomes chamfered, causing a shift in the wood's center of gravity and resulting in wood tilting. This necessitates re-fixing the wood, which can then deflect the cutting direction, making it impossible to keep the cut surfaces parallel. Summary of the Invention

[0003] The purpose of this invention is to provide a cutting device for furniture manufacturing boards to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a furniture manufacturing board cutting device, comprising: A frame that forms a cavity through which timber extends in a first direction; A drive assembly, the drive assembly including a drive motor and a main shaft extending along a first direction, the main shaft being rotatably connected to the cavity, the drive motor being drive-connected to the main shaft; A plurality of main band saw wheels are evenly spaced inside the cavity along a first direction. The main band saw wheels are coaxially arranged with the main shaft and are fixedly connected to the main shaft. The transmission wheel sets are one-to-one with the main band saw wheel. The transmission wheel sets are evenly spaced in the cavity along the first direction. Adjacent transmission wheel sets are staggered. The main shaft and the transmission wheel sets are sequentially spaced in the cavity along the second direction. The second direction and the first direction intersect each other and are located in the same vertical plane. A band saw blade is corresponding to the main band saw wheel. The band saw blade extends along a first direction. One end of the band saw blade is wound around the drive wheel assembly along a serpentine trajectory, and the other end of the band saw blade is driven to the main band saw wheel.

[0005] Preferably, each of the transmission wheel sets includes at least three upper band saw wheels and at least three lower band saw wheels, the total number of upper band saw wheels is equal to the total number of lower band saw wheels, the upper band saw wheels and lower band saw wheels are evenly spaced apart inside the cavity along a third direction, the upper band saw wheels are distributed between the lower band saw wheels and the main shaft, and the upper band saw wheels and lower band saw wheels are rotatably connected to the inner wall of the cavity, the third direction intersects with the first direction and is located in the same horizontal plane.

[0006] Preferably, an upper gap is provided between two adjacent upper band saw wheels, and a lower gap is provided between two adjacent lower band saw wheels, wherein the width of the upper gap and the width of the lower gap are equal to the thickness of the band saw blade.

[0007] Preferably, the circumferential surfaces of the upper band saw wheel and the lower band saw wheel are provided with a plurality of annular protrusions, and a positioning groove is formed between two adjacent annular protrusions, and the band saw blades are distributed in the positioning grooves at intervals.

[0008] Preferably, the cavity is detachably connected to several upper crossbeams extending in a third direction, and the upper band saw wheels are distributed between two adjacent upper crossbeams, with each upper band saw wheel rotatably connected to two upper crossbeams at both ends.

[0009] Preferably, the cavity is detachably connected to a plurality of lower crossbeams extending in a third direction, the lower band saw wheels are distributed between two adjacent lower crossbeams, and each lower band saw wheel is rotatably connected to two lower crossbeams at both ends.

[0010] Preferably, the upper crossbeam is detachably connected to the frame sidewall via an upper adjusting component, and the lower crossbeam is detachably connected to the frame sidewall via a lower adjusting component. Both the upper and lower adjusting components are screws. Both ends of the upper and lower crossbeams are provided with threaded holes extending in a third direction, and one end of the screw is threaded into the threaded hole.

[0011] Preferably, the frame includes a main body and several bases. The main body is a rectangular cylinder extending along a first direction. The bases are connected to two opposite inner walls of the main body. The upper crossbeam passes through two bases at both ends, and the lower crossbeam passes through two bases at both ends.

[0012] Preferably, the furniture manufacturing board cutting device further includes two opposing partitions, which are distributed between the upper band saw wheel and the lower band saw wheel. The plane on which the partitions are located is horizontal, and the partitions are provided with a plurality of through holes for the band saw blade to pass through.

[0013] Preferably, the partition includes a base plate and a pad with elastic deformation capability. The pad is detachably connected to the base plate. The base plate has a first through hole that is clearance-fitted with the band saw blade. The pad has a second through hole that is interference-fitted with the band saw blade. The first through hole and the second through hole are connected in a one-to-one correspondence to form the through hole.

[0014] The beneficial effects of this invention are as follows: the lower end of the band saw blade bends into a serpentine trajectory, allowing multiple boards to be sawn at once, and the cut surfaces of the multiple sawn boards are parallel to each other, with the cutting direction always consistent. The thickness of the sawn boards is affected by the spacing of the serpentine section of the band saw blade. By cutting the boards multiple times with multiple band saw blades, the thickness of the sawn boards gradually decreases to the rated thickness, facilitating subsequent precision machining of the boards using a planer. Attached Figure Description

[0015] The accompanying drawings further illustrate the invention, but the embodiments in the drawings do not constitute any limitation on the invention.

[0016] Figure 1 A perspective view of a furniture manufacturing board cutting device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a furniture manufacturing board cutting device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a band saw blade provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a partition provided in an embodiment of the present invention; Markings in the diagram: 1: Frame; 2: Main shaft; 3: Main band saw wheel; 4: Band saw blade; 5: Upper band saw wheel; 6: Lower band saw wheel; 7: Upper crossbeam; 8: Lower crossbeam; 9: First through hole; 10: Second through hole. Detailed Implementation

[0017] 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.

[0018] It should be noted that, in this invention, unless otherwise stated, when an element is referred to as "connected to" or "disposed on" another element, it can be directly on the other element or may have an intervening element present simultaneously. "Inner" and "outer" refer to the inner and outer contours of a specific object.

[0019] like Figures 1-3 As shown in the figure, an embodiment of the present invention provides a furniture manufacturing board cutting device, comprising: Frame 1, the frame 1 being configured to form a cavity through which wood passes along a first direction, the cavity extending along the first direction; A drive assembly, comprising a drive motor and a main shaft 2 extending along a first direction, the main shaft 2 being rotatably connected inside a cavity, and the drive motor being drive-connected to the main shaft 2; A plurality of main band saw wheels 3 are evenly spaced inside the cavity along a first direction. The axis of the main band saw wheels 3 extends along the first direction. The main band saw wheels 3 are coaxially arranged with the main shaft 2 and are fixedly connected to the main shaft 2. The transmission wheel sets are one-to-one with the main band saw wheel 3. The transmission wheel sets are evenly spaced in the cavity along the first direction. Adjacent transmission wheel sets are staggered. The main shaft 2 and the transmission wheel sets are sequentially spaced in the cavity along the second direction. The second direction and the first direction intersect each other and are located in the same vertical plane. A band saw blade 4 corresponds one-to-one with the main band saw wheel 3. The band saw blade 4 extends along a first direction. One end of the band saw blade 4 is wound around the transmission wheel set along a serpentine trajectory, and the other end of the band saw blade 4 is connected to the main band saw wheel 3.

[0020] Each of the aforementioned drive wheel sets includes at least three upper band saw wheels 5 and at least three lower band saw wheels 6. The total number of upper band saw wheels 5 is equal to the total number of lower band saw wheels 6. The upper band saw wheels 5 and lower band saw wheels 6 are evenly spaced within the cavity along a third direction. The upper band saw wheels 5 are distributed between the lower band saw wheels 6 and the main shaft 2. Both the upper band saw wheels 5 and lower band saw wheels 6 are rotatably connected to the inner wall of the cavity. The third direction intersects with the first direction and lies in the same horizontal plane. The total number of upper band saw wheels 5 in each of the aforementioned drive wheel sets is odd, and the sum of the diameters of the upper band saw wheels 5 in each of the aforementioned drive wheel sets is greater than the diameter of the main band saw wheel 3. The serpentine portion of the band saw blade 4 is kept extending vertically. The lower end of the band saw blade 4 is bent into a serpentine shape by the upper band saw wheels 5 and lower band saw wheels 6, and the wood is cut through the serpentine portion at the lower end of the band saw blade 4. The band saw blade 4 is supported by the upper band saw wheel 5 and the lower band saw wheel 6, so that the lower part of the band saw blade 4 that contacts the wood extends in the second direction.

[0021] An upper gap is provided between two adjacent upper band saw wheels 5, and a lower gap is provided between two adjacent lower band saw wheels 6. The width of the upper gap and the width of the lower gap are equal to the thickness of the band saw blade. By clamping the band saw blade 4 between the two upper band saw wheels 5, the stability of the band saw blade 4 during its serpentine movement can be improved.

[0022] The cavity contains several upper crossbeams 7 extending in a third direction, each of which has an upper band saw wheel 5 distributed between two adjacent upper crossbeams 7. Each upper band saw wheel 5 is rotatably connected to two upper crossbeams 7 at both ends. The upper crossbeams 7 support the upper band saw wheels 5, ensuring they are all at the same height. The lower end of the band saw blade 4 is wound around the upper band saw wheels 5 and the lower band saw wheel 6, which maintains a serpentine shape at the lower end of the band saw blade 4.

[0023] The cavity contains several lower crossbeams 8 extending in a third direction, each of which has a lower band saw wheel 6 distributed between two adjacent lower crossbeams 8. Each lower band saw wheel 6 is rotatably connected to two lower crossbeams 8 at both ends. The lower crossbeams 8 support the lower band saw wheels 6, ensuring they are at the same height. The band saw blade 4 is wound around the upper band saw wheel 5 and the lower band saw wheel 6, which maintains a serpentine shape at the lower end of the band saw blade 4.

[0024] The upper crossbeam 7 is detachably connected to the side wall of the frame 1 via an upper adjusting component, and the lower crossbeam 8 is detachably connected to the side wall of the frame 1 via a lower adjusting component. Both the upper and lower adjusting components are screws. Both ends of the upper crossbeam 7 and the lower crossbeam 8 have threaded holes extending in a third direction. One end of the screw is threaded into the threaded hole, and the other end of the screw has a handwheel. When the screw is rotated, the upper crossbeam 7 and the lower crossbeam 8 will shift in a third direction, thereby causing the band saw blade 4 to move in a third direction. When the relative positions of two adjacent band saw blades 4 change, the thickness of the cut wood will also change synchronously. The thickness of the cut wood can be adjusted by adjusting the relative positions of the two adjacent band saw blades 4.

[0025] The frame 1 includes a main body and several bases. The main body is a rectangular cylinder extending along a first direction. The bases are connected to two opposite inner walls of the main body. The upper crossbeam 7 passes through two bases at both ends, and the lower crossbeam 8 passes through two bases at both ends. The drive motor is detachably connected to the upper surface of the main body. The drive motor and the main shaft 2 are connected via a transmission chain that passes through the upper surface of the main body. The bases have a U-shaped cross section. By supporting the upper crossbeam 7 and the lower crossbeam 8 with the bases, when the position of the band saw blade 4 is adjusted by rotating the screw, the upper crossbeam 7 and the lower crossbeam 8 are supported by the bases, keeping the upper crossbeam 7 and the lower crossbeam 8 horizontal, and keeping the distance between the upper band saw wheel 5 and the lower band saw wheel 6 constant. Furthermore, the screw connected to the upper crossbeam 7 and the screw connected to the lower crossbeam 8 are connected via a chain drive pair, so that the screws adjusting the same band saw blade 4 can rotate synchronously and adjust their positions.

[0026] The furniture manufacturing board cutting device also includes two opposing partitions, positioned between the upper band saw wheel 5 and the lower band saw wheel 6. The partitions are horizontally aligned, and each partition has several through holes for the band saw blade 4 to pass through. The gap between the two opposing partitions allows wood to pass through. The lower end of the band saw blade 4 is bent into a serpentine shape, and its position is determined by the through holes in the partitions, ensuring that the lower part of the band saw blade 4 in contact with the wood remains vertical. Furthermore, rollers can be installed on a pad to support the wood and improve the smoothness of its movement.

[0027] In one embodiment, both the circumferential surfaces of the upper band saw wheel 5 and the lower band saw wheel 6 are provided with a plurality of annular protrusions. A positioning groove is formed between two adjacent annular protrusions, and the band saw blade 4 is distributed in the positioning groove at intervals. Positioning is achieved from both sides of the band saw blade 4 by two annular protrusions, and the width of the positioning groove decreases or increases in a stepped manner along a first direction. Multiple annular protrusions can be used to form positioning grooves of different widths, which is suitable for positioning band saws of various widths.

[0028] like Figure 4 As shown, in one embodiment, the partition includes a base plate and a pad with elastic deformation capability, the pad being a rubber sheet. The pad is detachably connected to the base plate, the base plate having a first through hole 9 that is clearance-fitted with the band saw blade 4, and the pad having a second through hole 10 that is interference-fitted with the band saw blade 4. The first through hole 9 and the second through hole 10 are connected in a one-to-one correspondence to form the through hole.

[0029] The band saw blade 4 includes a saw body and a plurality of saw teeth evenly distributed on the saw body. One end of the first through hole 9 is in clearance fit with the saw teeth, and the other end of the first through hole 9 is in clearance fit with the saw body. One end of the second through hole 10 is in clearance fit with the saw teeth, and the other end of the second through hole 10 is in interference fit with the saw body. Wood chips are scraped off the saw body of the band saw blade 4 by a pad to prevent wood chips from being caught in the upper band saw wheel 5 and the lower band saw wheel 6, thus avoiding any changes in the position of the band saw blade 4.

[0030] 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 furniture manufacturing board cutting device, characterized in that: include: A frame that forms a cavity through which timber extends in a first direction; A drive assembly, the drive assembly including a drive motor and a main shaft extending along a first direction, the main shaft being rotatably connected to the cavity, the drive motor being drive-connected to the main shaft; A plurality of main band saw wheels are evenly spaced inside the cavity along a first direction. The main band saw wheels are coaxially arranged with the main shaft and are fixedly connected to the main shaft. The transmission wheel sets are one-to-one with the main band saw wheel. The transmission wheel sets are evenly spaced in the cavity along the first direction. Adjacent transmission wheel sets are staggered. The main shaft and the transmission wheel sets are sequentially spaced in the cavity along the second direction. The second direction and the first direction intersect each other and are located in the same vertical plane. A band saw blade corresponding to the main band saw wheel, the band saw blade extending along a first direction, one end of the band saw blade being wound around the drive wheel set along a serpentine trajectory, and the other end of the band saw blade being drively connected to the main band saw wheel; Each of the aforementioned transmission wheel sets includes at least three upper band saw wheels and at least three lower band saw wheels. The total number of upper band saw wheels is equal to the total number of lower band saw wheels. The upper and lower band saw wheels are evenly spaced within the cavity along a third direction. The upper band saw wheels are distributed between the lower band saw wheels and the main shaft. Both the upper and lower band saw wheels are rotatably connected to the inner wall of the cavity. The third direction intersects with the first direction and is located in the same horizontal plane. The cavity contains several upper crossbeams extending in a third direction, each with an upper band saw wheel distributed between two adjacent upper crossbeams. Each upper band saw wheel is rotatably connected to one of the two upper crossbeams at both ends. The cavity also contains several lower crossbeams extending in a third direction, each with a lower band saw wheel distributed between two adjacent lower crossbeams at both ends. The upper crossbeams are detachably connected to the frame sidewalls via upper adjusting components, and the lower crossbeams are detachably connected to the frame sidewalls via lower adjusting components. Both the upper and lower adjusting components are screws. Both ends of the upper and lower crossbeams have threaded holes extending in a third direction, and one end of the screw is threaded into the threaded hole.

2. The furniture manufacturing board cutting device according to claim 1, characterized in that: An upper gap is provided between two adjacent upper band saw wheels, and a lower gap is provided between two adjacent lower band saw wheels. The width of the upper gap and the width of the lower gap are equal to the thickness of the band saw blade.

3. The furniture manufacturing board cutting device according to claim 1, characterized in that: The circumferential surfaces of the upper band saw wheel and the lower band saw wheel are provided with several annular protrusions, and a positioning groove is formed between two adjacent annular protrusions. The band saw blades are distributed in the positioning grooves at intervals.

4. The furniture manufacturing board cutting device according to claim 1, characterized in that: The frame includes a main body and several bases. The main body is a rectangular cylinder extending along a first direction. Two bases are connected to two opposite inner walls of the main body. The upper crossbeam passes through two bases at both ends, and the lower crossbeam passes through two bases at both ends.

5. The furniture manufacturing board cutting device according to claim 1, characterized in that: The furniture manufacturing board cutting device also includes two opposing partitions, which are distributed between the upper band saw wheel and the lower band saw wheel. The plane on which the partitions are located is horizontal, and the partitions are provided with several through holes for the band saw blade to pass through.

6. The furniture manufacturing board cutting device according to claim 5, characterized in that: The partition includes a base plate and a pad with elastic deformation capability. The pad is detachably connected to the base plate. The base plate has a first through hole that is clearance-fitted with the band saw blade. The pad has a second through hole that is interference-fitted with the band saw blade. The first through hole and the second through hole are connected in a one-to-one correspondence to form the through hole.

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