A saw wheel adjusting mechanism for a woodworking band saw

Abstract

The utility model discloses a kind of woodworking band sawing machine saw wheel adjusting mechanism, specifically related to band sawing machine wheel adjusting mechanism technical field, including rack assembly, adjusting assembly is provided in the upper inner cavity of rack assembly, guiding component is provided in the left side of middle part of rack assembly, horizontal plate component is provided at the bottom of guiding component, transmission component is provided in the lower part of the rear end of rack assembly, upper saw wheel is provided in the upper inner cavity of rack assembly, lower saw wheel is provided in the lower inner cavity of rack assembly, saw blade is wound in the outer side of upper saw wheel and the outer side of lower saw wheel together.The utility model relates to a kind of woodworking band sawing machine saw wheel adjusting mechanism, by adjusting assembly, realize upper saw wheel height adjustment, rotate adjusting wheel drive screw rod one rotation, moving plate is along fixed guide rail frame stable lifting, cooperate fastener locking, can quickly adjust the height of upper saw wheel, effectively avoid saw blade slack or too tight, improve sawing stability.

Description

Technical Field

[0001] This utility model relates to the technical field of saw wheel adjustment mechanism for band saws, and in particular to a saw wheel adjustment mechanism for a woodworking band saw. Background Technology

[0002] In the timber processing industry, woodworking band saws are widely used equipment for sawing logs, boards, and other timber raw materials according to different specifications and requirements to produce various sizes of boards, square timber, and other products. Currently, some traditional woodworking band saw wheel adjustment mechanisms on the market are cumbersome to adjust, usually requiring multiple tools and consuming a lot of time and manpower to complete the adjustment of the saw wheel height. Therefore, developing a woodworking band saw wheel adjustment mechanism that is easy to adjust, highly precise, and has stable and reliable guidance is of great practical significance for improving the overall performance of woodworking band saws and meeting the ever-evolving needs of the timber processing industry.

[0003] Chinese patent document CN202607765U discloses a woodworking band saw, a multi-blade woodworking band saw, including a frame, a tensioning mechanism, main and passive band saw wheels and band saw blades driven by a power source mounted on the frame. Several band saw blades are arranged around the main and passive band saw wheels. Each band saw blade has the aforementioned tensioning mechanism on its tensioning side. An angle adjustment device is provided above and below adjacent band saw blades at the feed end. The angle adjustment device twists and offsets the band saw blades at the feed end to create a parallel alignment. The saw teeth of each band saw blade are arranged sequentially. This patent document allows for operation by a single operator. When a piece of wood blank is fed into the feed end of the band saw blades, the multiple band saw blades can automatically complete the sawing of the board, greatly improving work efficiency. It does not require high operator skills, and offers high wood output, low labor intensity, good board flatness, low power consumption, and convenient operation. This woodworking band saw can complete the sawing of multiple boards at once.

[0004] The aforementioned patent documents still have the following defects in practice:

[0005] In actual use, the simple arrangement of band saw blades in a circular pattern does not provide sufficient control over the blade tension. Over long periods of operation, the blades tend to loosen, making it difficult to maintain stable cutting accuracy. The blades are also prone to deviation during operation, affecting the consistency and flatness of the cut boards. Utility Model Content

[0006] The main purpose of this utility model is to provide a saw wheel adjustment mechanism for a woodworking band saw, which can effectively solve the problems mentioned above.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A saw wheel adjustment mechanism for a woodworking band saw includes a frame assembly. An adjustment component is provided in the upper inner cavity of the frame assembly for adjusting the height of the upper saw wheel, thereby tightening the saw blade. A guide component is provided on the left side of the middle part of the frame assembly to prevent the saw blade from lateral swaying. A horizontal plate assembly is provided at the bottom end of the guide component. A transmission component is provided at the lower rear end of the frame assembly. An upper saw wheel is provided in the upper inner cavity of the frame assembly, and a lower saw wheel is provided in the lower inner cavity of the frame assembly. The saw blade is wound around the outer sides of both the upper and lower saw wheels.

[0009] Preferably, the frame assembly includes an upper frame, an upper box door rotatably connected to the front end of the upper frame, a connecting column provided at the right end of the upper frame, a lower frame provided at the bottom end of the upper frame, and a lower box door rotatably connected to the front end of the lower frame.

[0010] Preferably, the adjustment component includes a threaded rod, the upper part of which is fitted with a fastener for fixing and locking the adjustment component after the height is adjusted. An adjustment wheel is fixedly connected to the top end of the threaded rod, and a movable plate is fixedly connected to the bottom end of the threaded rod. A fixed guide rail is fixedly connected to the rear end of the inner cavity of the upper frame, and the movable plate is fitted onto the fixed guide rail.

[0011] Preferably, the transmission assembly includes a motor, a second pulley is sleeved on the front of the motor, a connecting shaft is sleeved on the middle of the lower saw wheel, a first pulley is sleeved on the rear of the connecting shaft, and a belt is wound around the outer side of the first pulley and the outer side of the second pulley.

[0012] Preferably, the guiding assembly includes a guide plate, an adjusting plate is provided at the lower front end of the guide plate, a fastening wheel is provided at the rear end of the adjusting plate, and fixing plates are provided at both the left and right ends of the adjusting plate. A threaded rod is provided at the far end of each of the two fixing plates, and a guide wheel is provided at the front end of the close side of each of the two threaded rods.

[0013] Preferably, the guide plate has a hollowed-out center.

[0014] Preferably, the horizontal plate assembly includes a horizontal plate body, a positioning plate two is provided at the top of the horizontal plate body, a plurality of positioning holes are equally spaced at both the front and rear ends of the horizontal plate body, a strip groove is provided on the left side of the front part of the top of the horizontal plate body, and positioning bolts are provided at the lower parts of both the front and rear ends of the positioning plate two.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the implementation of this utility model, the height and tightness of the upper saw wheel can be adjusted by adjusting the component. When the adjusting wheel is rotated, the threaded rod is rotated, and the moving plate is stably raised and lowered along the fixed guide rail frame. With the fastener locking, the height of the upper saw wheel can be quickly adjusted to flexibly adapt to the saw blade tension requirements, making the operation more convenient, effectively avoiding the saw blade from being too loose or too tight, and improving the sawing stability.

[0017] 2. In the implementation of this utility model, the guide assembly ensures the stable operation of the saw blade. The hollow design of the guide plate allows the spacing between the guide wheels to be adjusted according to the width of the saw blade. The fastening wheel can also finely adjust the guide position and suppress the lateral sway of the saw blade in real time.

[0018] 3. In the implementation of this utility model, the horizontal plate assembly can adapt to various processing needs, flexibly adjust the positioning position of the wood, adapt to sawing of wood of different sizes, have a wider processing adaptability, simplify the wood clamping process, and improve production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0021] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the present invention from another perspective;

[0023] Figure 5 This is a schematic diagram of the overall structure of the guide component of this utility model.

[0024] In the diagram: 1. Frame assembly; 11. Upper frame; 12. Upper box door; 13. Connecting column; 14. Lower frame; 15. Lower box door; 2. Adjustment assembly; 21. Adjusting wheel; 22. Fastener; 23. Threaded rod one; 24. Fixed guide rail frame; 25. Moving plate; 3. Guide assembly; 31. Fastening wheel; 32. Adjusting plate; 33. Fixed plate; 34. Threaded rod two; 35. Guide plate; 36. Guide wheel; 4. Saw blade; 5. Horizontal plate assembly; 51. Horizontal plate body; 52. Strip groove; 53. Positioning hole; 54. Positioning bolt; 55. Positioning plate two; 6. Transmission assembly; 61. Belt pulley one; 62. Belt one; 63. Belt pulley two; 64. Motor; 65. Connecting shaft; 7. Upper saw wheel; 8. Lower saw wheel. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] Example 1, as Figure 1 and Figure 3 As shown, a saw wheel adjustment mechanism for a woodworking band saw includes a frame assembly 1. An adjustment component 2 is provided in the upper inner cavity of the frame assembly 1 for adjusting the height of the upper saw wheel 7, thereby tightening the saw blade 4. A guide component 3 is provided on the left side of the middle part of the frame assembly 1 to prevent the saw blade 4 from swaying laterally. A horizontal plate component 5 is provided at the bottom end of the guide component 3. A transmission component 6 is provided at the lower rear end of the frame assembly 1. The upper saw wheel 7 is provided in the upper inner cavity of the frame assembly 1, and the lower saw wheel 8 is provided in the lower inner cavity of the frame assembly 1. The saw blade 4 is wound around the outer side of the upper saw wheel 7 and the outer side of the lower saw wheel 8.

[0027] In this embodiment, during implementation, the power supply is connected, the transmission assembly 6 is started, and the lower saw wheel 8 is driven to rotate. The saw blade 4 is driven to rotate cyclically through friction, which in turn drives the upper saw wheel 7 to rotate synchronously. The operator places the wood to be processed on the horizontal plate assembly 5 and pushes the wood towards the saw blade 4 to perform the sawing operation. During the sawing process, the guide assembly 3 continuously limits the saw blade 4, effectively suppressing sway and ensuring a straight sawing trajectory.

[0028] When the saw blade 4 becomes loose and needs adjustment, the height of the upper saw wheel 7 is adjusted using the adjustment component 2 in the upper inner cavity of the frame assembly 1 to tighten the saw blade 4 and ensure the tension of the saw blade 4.

[0029] Specifically, in order to protect the various components within the cavity of rack assembly 1, such as Figure 2 As shown, the rack assembly 1 includes an upper rack 11, an upper box door 12 is rotatably connected to the front end of the upper rack 11, a connecting column 13 is provided at the right end of the upper rack 11, a lower rack 14 is provided at the bottom end of the upper rack 11, and a lower box door 15 is rotatably connected to the front end of the lower rack 14.

[0030] In this embodiment, the upper frame 11 and the lower frame 14 form a stable frame through the connecting column 13. During operation, the upper box door 12 and the lower box door 15 are closed to prevent debris from entering the inner cavity and affecting operation, and to prevent injury to operators. When the device needs maintenance and debugging, the upper box door 12 and the lower box door 15 can be rotated to allow maintenance personnel to operate. After maintenance is completed, the upper box door 12 and the lower box door 15 are closed.

[0031] Specifically, in order to achieve the purpose of adjusting the height of the upper saw wheel 7, such as Figure 4As shown, the adjustment assembly 2 includes a threaded rod 23, with a fastener 22 fitted on the upper part of the threaded rod 23 for fixing and locking the adjustment assembly 2 after the height is adjusted. An adjustment wheel 21 is fixedly connected to the top of the threaded rod 23, and a movable plate 25 is fixedly connected to the bottom of the threaded rod 23. A fixed guide rail frame 24 is fixedly connected to the rear end of the inner cavity of the upper frame 11, and the movable plate 25 is fitted onto the fixed guide rail frame 24.

[0032] In this embodiment, when it is necessary to adjust the height of the upper saw wheel 7 to adjust the tension of the saw blade 4, the operator rotates the adjusting wheel 21, which drives the threaded rod 23 to rotate. Since the moving plate 25 is limited and guided by the fixed guide rail frame 24, it will move vertically along the fixed guide rail frame 24, thereby driving the upper saw wheel 7 to rise and fall synchronously.

[0033] Once the upper saw wheel 7 has moved to the position where the saw blade 4 tension meets the requirements, tighten the fastener 22 and fix the threaded rod 23 relative to the upper frame 11 to fix the position of the moving plate 25 and the upper saw wheel 7, ensuring sawing accuracy and efficiency.

[0034] Specifically, in order to provide stable power to the lower saw wheel 8 and drive the saw blade 4 in cyclical motion, such as Figure 4 As shown, the transmission assembly 6 includes a motor 64, a second pulley 63 is sleeved on the front of the motor 64, a connecting shaft 65 is sleeved on the middle of the lower saw wheel 8, a first pulley 61 is sleeved on the rear of the connecting shaft 65, and a first belt 62 is wound around the outer side of the first pulley 61 and the outer side of the second pulley 63.

[0035] In this embodiment, after the power is turned on, the motor 64 is started. The output shaft of the motor 64 drives the second pulley 63 to rotate. Through the first belt 62, the first pulley 61 rotates with it. The first pulley 61 drives the lower saw wheel 8 to rotate through the connecting shaft 65. The rotation of the lower saw wheel 8 drives the saw blade 4 to rotate through friction, so that the saw blade 4 starts to run.

[0036] Specifically, in order to guide and limit the saw blade 4 and ensure its stable operation, such as... Figure 5 As shown, the guide assembly 3 includes a guide plate 35, an adjustment plate 32 is provided at the lower front end of the guide plate 35, a fastening wheel 31 is provided at the rear end of the adjustment plate 32, and a fixing plate 33 is provided at both the left and right ends of the adjustment plate 32. A threaded rod 34 is provided at the section of the two fixing plates 33 that is far apart from each other, and a guide wheel 36 is provided at the front end of the side of the two threaded rods 34 that is close to each other.

[0037] Furthermore, the guide plate 35 has a hollowed-out section in the middle;

[0038] In this embodiment, before starting work, the distance between the two guide wheels 36 is adjusted according to the width of the saw blade 4. First, the threaded rod 34 is rotated to move the guide wheels 36 horizontally, so that the two guide wheels 36 are in contact with both sides of the saw blade 4. Then, the position of the saw blade 4 is finely adjusted by loosening the fastening wheel 31, and the adjusting plate 32 can move slightly relative to the guide plate 35, which drives the guide wheels 36 to move and adjust to match the position of the saw blade 4. After adjustment, the fastening wheel 31 is tightened again to fix it. During the operation, the guide wheels 36 rotate synchronously with the movement of the saw blade 4, using rolling friction to reduce the wear on the saw blade 4, while continuously limiting the saw blade 4 to ensure that the saw blade 4 runs along the preset trajectory.

[0039] Example 2: Based on Example 1, this example allows for adjustment of the support position during wood sawing to accommodate wood of different sizes.

[0040] Specifically, in order to achieve the above objectives, such as Figure 5 As shown, in this embodiment, the horizontal plate assembly 5 includes a horizontal plate body 51, a positioning plate 2 55 is provided at the top of the horizontal plate body 51, a plurality of positioning holes 53 are provided at equal distances at both the front and rear ends of the horizontal plate body 51, a strip groove 52 is provided on the left side of the front part of the top of the horizontal plate body 51, and positioning bolts 54 are provided at the lower parts of both the front and rear ends of the positioning plate 2 55.

[0041] In this embodiment, during implementation, the positioning bolts 54 are first loosened, and the positioning plate 55 is moved along the strip groove 52 of the horizontal plate body 51 to adjust its relative position with the saw blade 4. According to the different sizes of the required wood, the positioning bolts 54 are screwed into the positioning holes 53 at different positions of the horizontal plate body 51 to complete the fixing of the positioning plate 55. Finally, one side of the wood is placed against the positioning plate 55 for sawing.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A saw wheel adjustment mechanism for a woodworking band saw, comprising a frame assembly (1), characterized in that: An adjustment component (2) is provided in the upper inner cavity of the frame assembly (1) to adjust the height of the upper saw wheel (7) and thus tighten the saw blade (4). A guide component (3) is provided on the left side of the middle part of the frame assembly (1) to prevent the saw blade (4) from swaying laterally. A horizontal plate component (5) is provided at the bottom end of the guide component (3). A transmission component (6) is provided at the lower rear end of the frame assembly (1). An upper saw wheel (7) is provided in the upper inner cavity of the frame assembly (1). A lower saw wheel (8) is provided in the lower inner cavity of the frame assembly (1). The saw blade (4) is wound around the outer side of the upper saw wheel (7) and the outer side of the lower saw wheel (8).

2. The saw wheel adjustment mechanism for a woodworking band saw according to claim 1, characterized in that: The frame assembly (1) includes an upper frame (11), with an upper door (12) rotatably connected to the front end of the upper frame (11), a connecting column (13) provided at the right end of the upper frame (11), and a lower frame (14) provided at the bottom end of the upper frame (11), with a lower door (15) rotatably connected to the front end of the lower frame (14).

3. The saw wheel adjustment mechanism for a woodworking band saw according to claim 2, characterized in that: The adjustment assembly (2) includes a threaded rod (23), and a fastener (22) is fitted on the upper part of the threaded rod (23) for fixing and locking the adjustment assembly (2) after adjusting the height. An adjustment wheel (21) is fixedly connected to the top of the threaded rod (23), and a moving plate (25) is fixedly connected to the bottom of the threaded rod (23). A fixed guide rail frame (24) is fixedly connected to the rear end of the inner cavity of the upper frame (11), and the moving plate (25) is fitted onto the fixed guide rail frame (24).

4. The saw wheel adjustment mechanism for a woodworking band saw according to claim 1, characterized in that: The transmission assembly (6) includes a motor (64), a second pulley (63) is sleeved on the front of the motor (64), a connecting shaft (65) is sleeved on the middle of the lower saw wheel (8), a first pulley (61) is sleeved on the rear of the connecting shaft (65), and a belt (62) is wound around the outer side of the first pulley (61) and the outer side of the second pulley (63).

5. The saw wheel adjustment mechanism for a woodworking band saw according to claim 1, characterized in that: The guide assembly (3) includes a guide plate (35), an adjustment plate (32) is provided at the lower front end of the guide plate (35), a fastening wheel (31) is provided at the rear end of the adjustment plate (32), and a fixing plate (33) is provided at both the left and right ends of the adjustment plate (32). A threaded rod (34) is provided at the section of the two fixing plates (33) that are far apart from each other, and a guide wheel (36) is provided at the front end of the side of the two threaded rods (34) that are close to each other.

6. The saw wheel adjustment mechanism for a woodworking band saw according to claim 5, characterized in that: The guide plate (35) has a hollowed-out center.

7. The saw wheel adjustment mechanism for a woodworking band saw according to claim 1, characterized in that: The horizontal plate assembly (5) includes a horizontal plate body (51), a positioning plate two (55) is provided at the top of the horizontal plate body (51), a plurality of positioning holes (53) are provided at equal distances at both the front and rear ends of the horizontal plate body (51), a strip groove (52) is provided on the left side of the front part of the top of the horizontal plate body (51), and positioning bolts (54) are provided at the lower parts of both the front and rear ends of the positioning plate two (55).

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