Bandsaw stand

Abstract

A band saw base, including a base, a handle rotatably installed on the base, a band saw installation slot is opened in the middle of the handle, the front and rear ends of the band saw installation slot are respectively provided with a front fixing part and a rear fixing part for fixing a band saw machine, a sawing slot is opened on the base, the rear end of the sawing slot is provided with a driving wheel passing slot communicated with the sawing slot, the front end of the sawing slot is provided with a driven wheel passing slot communicated with the sawing slot, a sawing angle adjusting part is installed on the base, a main rotary installation hole for installing the sawing angle adjusting part is opened on one corner of the base close to the driven wheel passing slot and the sawing slot, a secondary rotary installation hole for installing the sawing angle adjusting part is opened on the base, the secondary rotary installation hole is away from the driven wheel passing slot relative to the main rotary installation hole, the sawing angle adjusting part can be installed in the secondary rotary installation hole, after installation, when performing oblique cutting on a plate, the end of the plate is located on the base, avoiding the plate contacting the driven wheel of the band saw machine to affect the normal operation of the band saw machine.

Description

Technical Field

[0001] This invention relates to the field of band saw base technology, and more particularly to a band saw base. Background Technology

[0002] A band saw is a sawing machine that uses a ring-shaped, endless saw blade to continuously rotate around two saw wheels in the same direction to perform sawing. Band saws are highly efficient with a small kerf and are the most widely used main saw in China's timber processing equipment. They are used for splitting logs, separating boards and squares, sawing large slabs into thin boards or small squares, and can also be used to cut rough-edged boards into straight-edged boards or squares.

[0003] A band saw base is an accessory for a band saw machine. It's used to secure the band saw for sawing operations. Fixing the band saw to the base allows for sawing at various angles on the board, facilitating operation. The band saw base has drive wheel and driven wheel slots. When using the band saw base, the band saw assembly moves downwards towards the board to cut, allowing the drive wheel and driven wheel to enter their respective slots. This prevents interference between the drive and driven wheels and the sawing platform at the bottom, ensuring the saw blade contacts the board for cutting. To accommodate different sawing angles, band saw bases often include angle adjustment mechanisms to secure the board. However, existing band saw bases, when used for angled cutting, often have limitations. Figure 1 As shown, the end of the board extends into the driven wheel through the groove. Because the board will come into contact with the driven wheel of the band saw during the sawing operation, it will affect the normal operation of the band saw and make it impossible for people to saw the board. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a band saw base. By providing a secondary rotating mounting hole on the base, the rotating mounting part of the sawing angle adjustment component can be installed in the secondary rotating mounting hole. After installation, when the fixed plate is cut at an angle, the end of the plate is located on the sawing platform of the band saw base, which avoids the plate from contacting the driven wheel of the band saw and affecting the normal operation of the band saw, thus ensuring that the sawing operation of the plate can be carried out normally.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: a band saw base, including a base and a handle rotatably mounted on the base. The handle has a band saw mounting groove in the middle. The front and rear ends of the band saw mounting groove are respectively provided with a front fixing part and a rear fixing part for fixing the band saw. A sawing groove is provided on the base. The rear end of the sawing groove is provided with a drive wheel passage groove communicating with the sawing groove. The front end of the sawing groove is provided with a driven wheel passage groove communicating with the sawing groove. A sawing angle adjustment component is installed on the base. A main rotating mounting hole for installing the sawing angle adjustment component is provided on a corner of the base near the driven wheel passage groove and the sawing groove. A secondary rotating mounting hole for installing the sawing angle adjustment component is provided on the base. The secondary rotating mounting hole is farther away from the driven wheel passage groove than the main rotating mounting hole.

[0006] Preferably, the sawing angle adjustment component includes a rotating mounting part installed in the main rotating mounting hole or the auxiliary rotating mounting hole, a plate fixing part for fixing the plate, and a rotating part.

[0007] Preferably, the main rotating mounting hole and the auxiliary rotating mounting hole are circular holes, and the rotating mounting part is provided with a rotating fitting part, which is a cylindrical structure.

[0008] Preferably, the rotating mounting part includes a snap-fit ​​part and a plug-in part, the surface of the plug-in part is provided with a protrusion, and the rotating mating part is located between the snap-fit ​​part and the protrusion.

[0009] Preferably, the front fixing part includes a pair of adjusting rods installed on the left and right sides of the handle. The adjusting rods pass through the outside of the handle and move in and out of the handle for adjustment. The inner end of the adjusting rod is equipped with a clamping member. The inner end of the clamping member is provided with a clamping part. The inner end surface of the clamping part is provided with a contact layer. The contact layer is provided with anti-slip protrusions distributed at intervals.

[0010] Preferably, the handle has a mounting hole for the adjusting rod to pass through, a rivet nut is fixed in the mounting hole, and the adjusting rod has an external thread that mates with the thread of the rivet nut, so that the adjusting rod can be rotated to move in and out of the rivet nut for adjustment.

[0011] Preferably, the rear fixing part includes a fixing kit installed on the handle. The fixing kit is detachably installed on the handle. The fixing kit includes kit fixing grooves at the left and right ends and a band saw fixing part in the middle. Handle fixing grooves are opened on the left and right sides of the band saw mounting groove. The handle fixing grooves and kit fixing grooves are fixedly connected by connectors. The band saw fixing part is located in the band saw mounting groove.

[0012] Preferably, the band saw fixing part is a pair of fixing members perpendicular to the handle, and each pair of fixing members has a fixing hole for fixing the band saw.

[0013] Preferably, a switch support rod is installed on the handle. The switch support rod includes a rotating connecting part rotatably connected to the handle, a switch pushing part for starting the band saw switch, and a handle part extending out of the handle. The handle has a number of spaced-apart switch support rod mounting holes, and the rotating connecting part is installed in the switch support rod mounting holes.

[0014] Preferably, the switch push part includes an inner connecting part connected to the rotating connecting part, an outer connecting part connected to the rotating connecting part, and a contact part that contacts the switch button of the band saw. The inner connecting part extends upward from the rotating connecting part to the contact part, and the outer connecting part extends downward from the contact part to the handle. The contact part is horizontally arranged.

[0015] The beneficial effects of this invention are as follows: This invention provides a band saw base. By setting a secondary rotating mounting hole on the band saw base, the rotating mounting part of the sawing angle adjustment component can be installed in the secondary rotating mounting hole. After installation, when the fixed plate is cut at an angle, the end of the plate will not extend into the driven wheel through groove but will be located on the sawing platform of the band saw base. This avoids the plate contacting the driven wheel of the band saw and affecting the normal operation of the band saw, ensuring that the sawing operation of the plate can be carried out normally. At the same time, the contact surface of the clamping part of the front fixing part on the handle is provided with multiple sets of spaced anti-slip protrusions to prevent the main handle from slipping when the band saw is in use. The fixing kit of the rear fixing part is detachable and its position is adjustable, so that this band saw base can be adapted to band saw heads with different thread fixing hole positions, improving the adaptability of the band saw base. In addition, the handle is provided with several spaced switch support rod mounting holes. The switch support rod can be installed in the switch support rod mounting holes at different positions to adapt to band saws with different switch button positions, ensuring that the band saw switch button can be continuously pressed through the switch support rod. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an existing band saw base cutting a plate at an angle.

[0017] Figure 2 This is a schematic diagram of the structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the sawing angle adjustment component in this invention;

[0019] Figure 4 for Figure 3 Schematic diagram of the rotating mounting section;

[0020] Figure 5 This is a schematic diagram illustrating the oblique sawing of a board using the present invention;

[0021] Figure 6 This is a top view of the base in this invention;

[0022] Figure 7This is a cross-sectional view of the base in this invention;

[0023] Figure 8 This is a cross-sectional view of the handle in this invention;

[0024] Figure 9 This is a schematic diagram of the clamping component in this invention;

[0025] Figure 10 This is a schematic diagram of the fixing kit in this invention;

[0026] Figure 11 This is a schematic diagram of the switch support rod in this invention;

[0027] Figure 12 This is a bottom view of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1. Base; 2. Handle; 3. Band saw mounting slot; 4. Front fixing part; 5. Rear fixing part; 6. Cutting groove; 7. Drive wheel through groove; 8. Driven wheel through groove; 9. Cutting angle adjustment component; 10. Main rotation mounting hole; 11. Secondary rotation mounting hole; 12. Rotating mating component; 13. Adjusting rod; 14. Clamping component; 15. Mounting hole; 16. Rivet nut; 17. Connecting component; 18. Switch support rod; 19. Switch support rod mounting hole; 20. Positioning post; 21. Positioning post main mounting hole; 22. Main nut; 23. Positioning post secondary mounting hole; 24. Secondary nut; 25. Grip part; 26. Reinforcing rib; 2-1. Handle fixing groove; 5-1. Kit fixing 5-2. Groove; 5-21. Fixing hole; 9-1. Rotating mounting part; 9-2. Plate fixing part; 9-3. Rotating part; 9-11. Snap-fit ​​part; 9-12. Insertion part; 9-13. Protrusion part; 9-31. Rotating slide groove; 14-1. Clamping part; 14-11. Contact layer; 14-111. Anti-slip protrusion; 18-1. Rotating connection part; 18-2. Switch push part; 18-3. Handle part; 18-11. Connecting strip; 18-12. Disc; 18-21. Inner connection part; 18-22. Outer connection part; 18-23. Contact part; 18-24. Extended contact plate; 20-1. Positioning post body; 20-2. Positioning post handle. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] This embodiment provides a band saw base, as shown in the reference. Figure 2 The band saw base is used to mount a handheld band saw for sawing operations. It includes a base 1 and a handle 2 rotatably mounted on the base 1. The base 1 is equipped with a sawing angle adjustment component 9 for adjusting the sawing angle of the board. Figure 3As shown, the sawing angle adjustment component 9 includes a rotating mounting part 9-1, a fixing part 9-2 for fixing the plate, and a rotating part 9-3. In this embodiment, the rotating part 9-3 is a flat plate that fits against the upper surface of the base 1, and the fixing part 9-2 is a flat plate that is perpendicular to the rotating part 9-3. When the plate is fixed and limited, it rests against the side of the fixing part 9-2 away from the rotating part 9-3. The base 1 has a sawing groove 6 for the band saw blade to pass through. The rear end of the sawing groove 6 has a drive wheel passage groove 7, which communicates with the sawing groove 6. The front end of the sawing groove 6 has a driven wheel passage groove 8, which communicates with the sawing groove 6. The groove 6 is connected. The base 1 has a main rotating mounting hole 10 for mounting the rotating mounting part 9-1. The main rotating mounting hole 10 is located near a corner of the driven wheel through groove 8 and the sawing groove 6. The base 1 also has a secondary rotating mounting hole 11, which is farther away from the driven wheel through groove 8 relative to the main rotating mounting hole 10. The rotating mounting part 9-1 can be selectively installed in either the main rotating mounting hole 10 or the secondary rotating mounting hole 11. One or more secondary rotating mounting holes 11 can be provided. In this embodiment, one secondary rotating mounting hole 11 is provided. When the plate X is fixed on the base 1 and oblique cutting is performed, such as... Figure 5 As shown, the rotating mounting part 9-1 is installed in the auxiliary rotating mounting hole 11. The end of the plate X will not extend into the driven wheel through groove 8 but will be located on the base 1. This avoids the plate X from contacting the driven wheel of the band saw and thus affecting the normal operation of the band saw, ensuring that the plate X can be sawn normally.

[0031] Among them, reference Figure 5 , Figure 6 and Figure 7 In this embodiment, the base 1 is provided with a positioning post 20 for the rotation and positioning of the sawing angle adjustment component 9. The positioning post 20 includes a positioning post body 20-1 and a positioning post handle 20-2. The positioning post body 20-1 is a cylindrical structure with threads. The positioning post handle 20-2 is sleeved on the outside of the positioning post body 20-1 and the positioning post handle 20-2 and the positioning post body 20-1 are detachably locked and fixed by screws. The rotating part 9-3 of the sawing angle adjustment component 9 has a rotating slide groove 9-31. The base 1 has a positioning post main mounting hole 21 corresponding to the main rotating mounting hole 10. A main nut 22 is provided below the positioning post main mounting hole 21 and welded to the base 1. The base 1 has a positioning post secondary mounting hole 23 corresponding to the secondary rotating mounting hole 11. A secondary nut 24 is provided below the positioning post secondary mounting hole 23 and welded to the base 1. Figure 7As shown, when the rotating mounting part 9-1 is installed in the main rotating mounting hole 10, the positioning column body 20-1 passes through the rotating slide groove 9-31 and the positioning column main mounting hole 21 and is threadedly connected to the main nut 22. This allows the rotating part 9-3 to rotate around the positioning column body 20-1, thereby changing the angle of the plate limited by the fixing part 9-2 and thus adjusting the sawing angle. After adjusting to the ideal angle, the positioning column handle 20-2 drives the positioning column body 20-1 to rotate, which causes the positioning column body 20-1 to move downward relative to the main nut 22. After moving a certain distance, the positioning column body 20-1 presses against the rotating part 9-3 to prevent the rotating part 9-3 from moving, thus fixing the sawing angle adjustment part 9. Aligning the plate with the fixing part 9-2 allows for the start of fixed-angle sawing.

[0032] Furthermore, referring to Figure 2 and Figure 3 In this embodiment, the main rotating mounting hole 10 and the auxiliary rotating mounting hole 11 are circular holes with identical size, dimensions, and shape. The rotating mounting part 9-1 is provided with a rotating fitting 12, which is a cylindrical structure made of plastic and fits onto the rotating mounting part 9-1. Figure 4 As shown, the rotating mounting part 9-1 includes a snap-fit ​​part 9-11 and a plug-in part 9-12. The width of the snap-fit ​​part 9-11 is greater than the inner diameter of the main rotating mounting hole 10. The surface of the plug-in part 9-12 is provided with a protrusion 9-13, which protrudes from the rotating fitting part 12. The rotating fitting part 12 is located between the snap-fit ​​part 9-11 and the protrusion 9-13, thus the snap-fit ​​part 9-11 and the protrusion 9-13 limit the rotation of the rotating fitting part 12. When the rotating mounting part 9-1 is installed, the rotating fitting part 12 is located in and in contact with the main rotating mounting hole 10 or the auxiliary rotating mounting hole 11. The sawing angle adjusting part 9 is rotatably connected to the main rotating mounting hole 10 or the auxiliary rotating mounting hole 11 with a circular hole structure through the cylindrical rotating fitting part 12, making the rotation of the sawing angle adjusting part 9 smoother. In addition, as Figure 12 As shown, in this embodiment, the bottom surface of the base 1 is provided with a reinforcing rib 26 perpendicular to the length direction of the base 1 (in this embodiment, there are two reinforcing ribs 26). The reinforcing ribs 26 can provide better support for the base 1, prevent the surface of the base 1 from sinking during sawing, ensure that the board is on a flat horizontal surface during sawing, and ensure a good sawing effect.

[0033] Reference Figure 2 In this embodiment, the handle 2 has a band saw mounting groove 3 in the middle, and the front end of the band saw mounting groove 3 is provided with a front fixing part 4 for fixing the hand grip of the band saw. Figure 8As shown, the front fixing part 4 includes a pair of adjusting rods 13 installed on the left and right sides of the handle 2. A clamping member 14 is installed on the inner end of each adjusting rod 13. The handle 2 has a mounting hole 15. The adjusting rod 13 passes through the mounting hole 15 from the outside of the handle 2. A rivet nut 16 is fixed in the mounting hole 15. The rivet nut 16 is driven into and fixed in the mounting hole 15 by a rivet nut gun. The adjusting rod 13 has an external thread that engages with the threaded rivet nut 16. Rotating the adjusting rod 13 in different directions moves the clamping member 14 inwards and outwards to clamp the main handle of the band saw. Compared to the existing method of welding a nut to the handle for the band saw base, the use of a rivet nut 16 in this embodiment simplifies installation and increases the effective thread length of the rivet nut 16, thus lengthening the connection between the adjusting rod 13 and the rivet nut 16, making the connection more stable and less prone to loosening. (Refer to...) Figure 9 The clamping member 14 has a clamping part 14-1 at its inner end. The clamping part 14-1 has a cylindrical structure. Compared with a cuboid, a cylinder can better adapt to various surface conditions of the band saw main handle. The inner end face of the clamping part 14-1 has a contact layer 14-11. The contact layer 14-11 protrudes from the inner end face of the clamping part 14-1. The contact layer 14-11 is made of an elastic material (rubber in this embodiment). The elastic contact layer 14-11, which protrudes from the clamping part 14-1, can play a role in buffering and protecting when fixing the band saw main handle. To prevent the clamping part 14-1 or the main handle of the band saw from being deformed and damaged due to pressure, the contact layer 14-11 is provided with multiple sets (3 sets in this embodiment) of spaced anti-slip protrusions 14-111. Each set of anti-slip protrusions 14-111 is arranged in a circular shape and distributed in an inner and outer array. When fixing the main handle of the band saw, a large number of anti-slip protrusions 14-111 contact the main handle of the band saw, significantly increasing the friction between the clamping part 14 and the main handle of the band saw, thus preventing the main handle from slipping during use and ensuring that the sawing operation can be carried out normally; in addition, referring to Figure 8 The outer end of the adjusting rod 13 is fixedly equipped with a gripper 25 for easy holding by the operator. When installing the band saw, the adjusting rod 13 is rotated by rotating the gripper 25, which in turn causes the adjusting rod 13 to move relative to the rivet nut 16 and the handle 2 under the action of the thread, thereby adjusting the clamping position of the clamping member 14.

[0034] Reference Figure 2 Handle fixing slots 2-1 are provided on the handles 2 located on the left and right sides of the band saw mounting slot 3. A rear fixing part 5 for fixing the band saw is provided at the rear end of the band saw mounting slot 3. The rear fixing part 5 includes a fixing kit mounted on the handle 2. The fixing kit is detachably mounted on the handle 2. Different band saws are fixed using various dedicated fixing kits. The fixing kit in this embodiment is as follows: Figure 10As shown, the fixing kit includes fixing slots 5-1 at both ends and a band saw fixing part in the middle. The band saw fixing part is located in the band saw mounting slot 3. In this embodiment, the fixing kit is a sheet metal part. Two downwardly curved fixing parts 5-2 (i.e., band saw fixing parts) are formed by bending the sheet metal part. Each of these fixing parts 5-2 has a fixing hole 5-21 for fixing the band saw (in this embodiment, each has one fixing hole 5-21). This allows the fixing parts 5-2 to be located on both sides of the band saw head. After screws pass through the fixing parts 5-2, they are threaded into the threaded fixing holes on both sides of the band saw head, thereby realizing the installation of the fixing kit and the band saw. The two ends of the fixing kit (i.e., the outer side of the sheet metal part) are respectively A kit fixing slot 5-1 is provided, corresponding to the handle fixing slot 2-1. The kit fixing slot 5-1 has a strip-shaped structure and is set perpendicular to the length direction of the handle 2. When the fixing kit is installed on the handle 2, the fixing member 5-2 is located in the band saw mounting slot 3. The handle fixing slot 2-1 and the kit fixing slot 5-1 are fixedly connected by a connector 17 (in this embodiment, the connector 17 is a bolt and a nut), and a washer is provided between the bolt and the kit fixing slot 5-1. Since the handle fixing slot 2-1 and the kit fixing slot 5-1 have a strip-shaped structure, the installation position of the fixing kit is adjustable, which in turn makes the position of the fixing hole 5-21 adjustable, so that the band saw can be installed on the fixing hole 5-21 by screws.

[0035] Reference Figure 2 In this embodiment, a switch support rod 18 is installed on the handle 2. After the band saw is installed, the switch support rod 18 is located outside the switch button of the band saw. The switch support rod 18 includes a rotating connecting part 18-1 rotatably connected to the handle 2, a switch pushing part 18-2 for starting the band saw switch, and a handle part 18-3 extending out of the handle 2. The rotating connecting part 18-1 can be a flat sheet metal part, i.e. Figure 11The connecting strip 18-11 shown has a disc 18-12 connected to its inner end. The disc 18-12 has a central hole. The connecting strip 18-11 and the disc 18-12 are integrally formed. The handle 2 has a set of spaced-apart switch support rod mounting holes 19 (in this embodiment, there are 6 switch support rod mounting holes 19). The switch support rod mounting holes 19 are evenly distributed at certain intervals along the length of the handle 2. The switch support rod mounting holes 19 are circular through holes. The rotating connection part 18-1 is rotatably connected to the switch support rod mounting holes 19. Specifically, the bolt is passed through the switch support rod mounting holes 19 and the disc 18-12 from top to bottom, and then a nut is threaded on. The diameter of the opening in the disc 18-12 is larger than the outer diameter of the bolt, so that the rotating connection part 18-1 can rotate relative to the bolt. The rotating connection part 18-1 and the switch support rod mounting holes 19 can also be directly connected by bolts. In this case, the opening in the disc 18-12 is... Specifically, the bolt is passed through the switch support rod mounting hole 19 from top to bottom and threaded into the threaded hole of the disc 18-12. At this time, the diameter of the switch support rod mounting hole 19 is larger than the outer diameter of the bolt, so that the rotating connection part 18-1 and the bolt can rotate relative to the switch support rod mounting hole 19. During the use of the band saw base, the switch support rod 18 is installed in the corresponding position of the switch support rod mounting hole 19 according to the different switch button positions of different band saws. After the band saw is installed on the band saw base, the band saw is turned on when the switch button is moved to the main handle side, and turned off when the switch button is moved to the auxiliary handle side. Therefore, pushing the switch push part 18-2 moves the handle part 18-3 from the "OFF" position on the handle 2 to the "ON" position to start the band saw, and pushing the switch push part 18-2 in the opposite direction moves the handle part 18-3 from the "ON" position on the handle 2 to the "OFF" position to turn off the band saw.

[0036] Furthermore, referring to Figure 11To ensure full contact between the switch pushing part 18-2 and the switch button of the band saw, in this embodiment, the switch pushing part 18-2 includes an inner connecting part 18-21 connected to the rotating connecting part 18-1 and a contact part 18-23 that contacts the switch button of the band saw. The inner connecting part 18-21 extends upward from the rotating connecting part 18-1 to the contact part 18-23. The contact part 18-23 is horizontally arranged. An outer connecting part 18-22 is also connected between the contact part 18-23 and the handle part 18-3. The outer connecting part 18-22 extends downward from the contact part 18-23 to the handle part 18-3. The inner connecting part 18-21, the contact part 18-23, and the outer connecting part 18-22 are integrally formed to form the switch pushing part 18-2. The moving part 18-2 protrudes from the rotating connecting part 18-1 and the handle part 18-3, which can accommodate the band saw switch buttons of different heights on the band saw machine and prevent the switch pushing part 18-2 from failing to contact the band saw switch button. In addition, in this embodiment, the contact part 18-23 is welded with downwardly extending contact plates 18-24 on both sides. The surface of the extension contact plate 18-24 is arc-shaped, and the lower end of the extension contact plate 18-24 extends to the lowest end of the inner connecting part 18-21 or the outer connecting part 18-22. The extension contact plate 18-24 provided on the contact part 18-23 increases the contact area between the switch pushing part 18-2 and the band saw switch button, so that the switch pushing part 18-2 can better contact the band saw switch button to start and stop the band saw machine.

[0037] Certain terms are used in the specification and claims of this invention to refer to specific products. Those skilled in the art will understand that manufacturers may use different names to refer to the same components. This document is not intended to distinguish between components that have the same function but different names. In the following specification and claims, words such as “comprising,” “having,” and “including” are open-ended terms and should therefore be interpreted as “containing but not limited to…”.

[0038] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A band saw base, comprising a base (1) and a handle (2) rotatably mounted on the base (1), wherein the handle (2) has a band saw mounting groove (3) in the middle, and the front and rear ends of the band saw mounting groove (3) are respectively provided with a front fixing part (4) and a rear fixing part (5) for fixing a band saw, characterized in that: The base (1) has a sawing groove (6), a drive wheel passage groove (7) communicating with the rear end of the sawing groove (6), and a driven wheel passage groove (8) communicating with the front end of the sawing groove (6). A sawing angle adjustment component (9) is installed on the base (1). A main rotating mounting hole (10) for installing the sawing angle adjustment component (9) is opened on one corner of the base (1) near the driven wheel passage groove (8) and the sawing groove (6). A secondary rotating mounting hole (11) for installing the sawing angle adjustment component (9) is opened on the base (1). The mounting hole (11) is away from the driven wheel through groove (8) relative to the main rotating mounting hole (10); the rear fixing part (5) includes a fixing kit mounted on the handle (2), the fixing kit is detachably mounted on the handle (2), the fixing kit includes kit fixing grooves (5-1) at the left and right ends, and a band saw fixing part in the middle part, and handle fixing grooves (2-1) are opened on the handle (2) on the left and right sides of the band saw mounting groove (3), and the handle fixing groove (2-1) and the kit fixing groove (5-1) are fixedly connected by a connector (17); the band saw fixing part is located on Inside the band saw mounting slot (3), a switch support rod (18) is mounted on the handle (2). The switch support rod (18) includes a rotating connecting part (18-1) rotatably connected to the handle (2), a switch pushing part (18-2) for starting the band saw switch, and a handle part (18-3) extending out of the handle (2). The handle (2) has several spaced switch support rod mounting holes (19), and the rotating connecting part (18-1) is installed in the switch support rod mounting holes (19). The switch pushing part (18-2) includes a part connected to the rotating connecting part (18-1). The inner connecting part (18-21), the outer connecting part (18-22) connected to the rotating connecting part (18-1), and the contact part (18-23) that contacts the switch button of the band saw are provided. The inner connecting part (18-21) extends upward from the rotating connecting part (18-1) to the contact part (18-23), and the outer connecting part (18-22) extends downward from the contact part (18-23) to the handle part (18-3). The contact part (18-23) is horizontally set, and downwardly extending contact plates (18-24) are welded on both sides of the contact part (18-23).

2. A band saw base according to claim 1, characterized in that: The sawing angle adjustment component (9) includes a rotating mounting part (9-1) installed in the main rotating mounting hole (10) or the auxiliary rotating mounting hole (11), a plate fixing part (9-2) for fixing the plate, and a rotating part (9-3).

3. A band saw base according to claim 2, characterized in that: The main rotating mounting hole (10) and the auxiliary rotating mounting hole (11) are circular holes. The rotating mounting part (9-1) is provided with a rotating fitting part (12), which is a cylindrical structure.

4. A band saw base according to claim 3, characterized in that: The rotating mounting part (9-1) includes a snap-fit ​​part (9-11) and a plug-in part (9-12). The surface of the plug-in part (9-12) is provided with a protrusion (9-13). The rotating mating part (12) is located between the snap-fit ​​part (9-11) and the protrusion (9-13).

5. A band saw base according to claim 1, characterized in that: The front fixing part (4) includes a pair of adjusting rods (13) installed on the left and right sides of the handle (2). The adjusting rods (13) pass through the outside of the handle (2) and move in and out of the handle (2) for adjustment. The inner end of the adjusting rod (13) is equipped with a clamping part (14). The inner end of the clamping part (14) is provided with a clamping part (14-1). The inner end face of the clamping part (14-1) is provided with a contact layer (14-11). The contact layer (14-11) is provided with anti-slip protrusions (14-111) distributed at intervals.

6. A band saw base according to claim 5, characterized in that: The handle (2) is provided with a mounting hole (15) for the adjusting rod (13) to pass through. A rivet nut (16) is fixed in the mounting hole (15). The adjusting rod (13) is provided with an external thread that is threaded to the rivet nut (16). The adjusting rod (13) is driven to rotate and move in and out of the rivet nut (16) for adjustment.

7. A band saw base according to claim 1, characterized in that: The band saw fixing part is a pair of fixing parts (5-2) perpendicular to the handle (2), and each of the pair of fixing parts (5-2) has a fixing hole (5-21) for fixing the band saw.

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