Adjustable bone saw

Abstract

The utility model discloses an adjustable bone sawing machine, including bone sawing mechanism, annular saw blade is equipped with from the driven wheel and the power wheel outward, the driven wheel is located power wheel's top, and the bone sawing mechanism includes swing board, and the lower part front side of swing board forms and sets up the support axle that extends to the front, and the driven wheel rotates and is equipped with the support axle, and the rear end contact connection frame of adjusting screw, and the slide seat is connected on the frame up and down slidingly, and the tensioning screw is set up vertically, and the tensioning screw is rotatably connected frame, and the lower end portion of tensioning screw is screwed the slide seat, and the front side of slide seat forms the hook portion, and the hook portion forms and sets up the hook groove that opens upward, and the upper end portion both sides of swing board form articulated axle head respectively, and articulated axle head is adapted to be equipped in corresponding hook groove, and the lower part of swing board can swing back and forth. The utility model discloses bone sawing machine adjustable annular saw blade, is favorable to bone sawing machine stable operation, and is favorable to bone sawing machine convenient maintenance.

Description

Technical Field

[0001] This utility model relates to the field of bone sawing machines, specifically to an adjustable bone sawing machine. Background Technology

[0002] Currently, bone sawing machines belong to food processing machinery. They feature a ring-shaped saw blade supported by a driven wheel and a power wheel. A geared motor drives the power wheel to rotate, which in turn rotates the ring-shaped saw blade. The front edge of the ring-shaped saw blade has serrations. By manually moving the bone from front to back towards the ring-shaped saw blade, it can be cut. However, when installing a new saw blade, due to the ring-shaped saw blade's inherent width and manufacturing errors, it's possible for one side to be slightly longer than the other. This can cause the saw blade to deviate, potentially detaching from the power and driven wheels. Existing bone sawing machines lack a ring-shaped saw blade adjustment mechanism, necessitating improvement. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an adjustable bone saw, which can adjust the annular saw blade, thus facilitating the stable operation of the bone saw.

[0004] The objective of this utility model is achieved through the following technical solution.

[0005] This utility model discloses an adjustable bone saw, including a bone sawing mechanism. The bone sawing mechanism includes a driven wheel, a power wheel, and a ring-shaped saw blade. The ring-shaped saw blade is sleeved on the driven wheel and the power wheel. The driven wheel is located above the power wheel. The bone sawing mechanism includes a swing plate. A forward-extending support shaft is formed on the lower front side of the swing plate. The driven wheel is rotatably mounted on the support shaft. The machine also includes a frame. The bone sawing mechanism includes an adjusting screw, a slide, and a tensioning screw. The adjusting screw is screwed into… The swing plate has its rear end connected to the frame via the adjusting screw. The slide block is slidably connected to the frame. The tensioning screw is vertically mounted and rotatably connected to the frame. The lower end of the tensioning screw is screwed to the slide block. A hook portion is formed on the front side of the slide block, and the hook portion has an upward-opening hook groove. Hinged shaft heads are formed on the left and right sides of the upper end of the swing plate, and the hinged shaft heads are adapted to fit into the corresponding hook grooves. The lower part of the swing plate can swing back and forth.

[0006] Preferably, a handwheel is provided at the upper end of the tensioning screw.

[0007] Preferably, the driven wheel has spoke weight-reducing holes that can be aligned with the adjusting screw.

[0008] Preferably, the adjusting screw is a hexagonal set screw, and the adjusting screw is screwed with a locking nut, which is attached to the front side of the swing plate.

[0009] Preferably, the frame is provided with a material table plate, the right part of the annular saw blade passes through the material table plate, the power wheel is located on the lower side of the material table plate, and the material table plate is provided with a feed plate that is slidably arranged left and right.

[0010] Compared with the prior art, the advantages of this utility model are as follows: A forward-extending support shaft is formed on the lower front side of the swing plate, a driven wheel is rotatably mounted on the support shaft, an adjusting screw is screwed onto the swing plate, the rear end of the adjusting screw contacts and connects to the frame, a tensioning screw is rotatably connected to the frame, and a slide is screwed to the lower end of the tensioning screw. A hook portion is formed on the front side of the slide, and the hook portion has an upward-opening hook groove. Hinged shaft heads are formed on the left and right sides of the upper end of the swing plate, and the hinged shaft heads are fitted into the corresponding hook grooves. The lower part of the swing plate can swing back and forth, allowing the bone saw of this utility model to adjust the circular saw blade, which is beneficial for the stable operation of the bone saw. The hinged shaft heads fitted into the corresponding hook grooves also facilitate the maintenance of the bone saw. Attached Figure Description

[0011] Figure 1 This is a front view structural diagram of the adjustable bone saw of this utility model.

[0012] Figure 2 This is a right-side structural schematic diagram of the adjustable bone saw of this utility model.

[0013] Figure 3 This is a schematic diagram of the structure of the driven wheel and the annular saw blade combination of this utility model.

[0014] Figure 4 This is a top view of the slide and swing plate combination of this utility model.

[0015] Figure 5 This is a partial front view structural diagram of the combination of the feed plate and the material table plate of this utility model.

[0016] Labeling: Frame 1; Saw mechanism 2; Driven wheel 21; Side guard 211; Spoke weight reduction hole 212; Drive wheel 22; Gear motor assembly 23; Support shaft 24; Swing plate 25; Hinge shaft head 251; Adjusting screw 26; Locking nut 261; Slide 27; Slide plate 271; Hook 272; Hook groove 2721; Tensioning screw 28; Handwheel 281; Slide rail 29; Ring saw blade 3; Saw tooth 301; Material table 4; Feed plate 5; Sliding sleeve 51; Guide rod 52; Detailed Implementation

[0017] The present invention will now be further described with reference to the accompanying drawings.

[0018] The adjustable bone saw of this utility model, such as Figures 1 to 3 As shown, the saw mechanism 2 includes a driven wheel 21, a power wheel 22, and a ring-shaped saw blade 3. The ring-shaped saw blade 3 is sleeved around the driven wheel 21 and the power wheel 22. The saw mechanism 2 is equipped with a geared motor assembly 23. For example, the power wheel 22 can be mounted on the output shaft of the geared motor assembly 23. The rotation axis of the power wheel 22 is along the front-rear direction. The front end of the ring-shaped saw blade 3 has saw teeth 301, while the rear end of the ring-shaped saw blade 3 has a flat edge. Figure 1 and Figure 2 As shown, the driven wheel 21 is located above the power wheel 22. The bone sawing mechanism 2 includes a swing plate 25. A forward-extending support shaft 24 is formed on the lower front side of the swing plate 25. The support shaft 24 is perpendicular to the swing plate 25 and can be welded to the swing plate 25. The driven wheel 21 is rotatably mounted on the support shaft 24 via a bearing. The adjustable bone saw of this utility model also includes a frame 1. A geared motor assembly 23 is mounted on the frame 1. The bone sawing mechanism 2 includes an adjusting screw 26, a slide 27, and a tensioning screw 28. The adjusting screw 26 is screwed onto the swing plate 25. The axis of the adjusting screw 26 is approximately along the front-rear direction. The rear end of the adjusting screw 26 contacts and connects to the frame 1 and the slide 27. 7. The slide block 27 is slidably connected to the frame 1. Specifically, the frame 1 is equipped with a slide rail 29, which forms a groove. The left and right ends of the slide block 27 are slidably disposed in the corresponding grooves. The tensioning screw 28 is vertically disposed and rotatably connected to the frame 1. That is to say, the tensioning screw 28 is axially positioned. The lower end of the tensioning screw 28 is screwed to the slide block 27. Specifically, the upper end of the slide block 27 protrudes backward to form a screw block. The tensioning screw 28 is screwed to the aforementioned screw block. A hook portion 272 is formed on the front side of the slide block 27. The hook portion 272 can be welded to the slide block 27. The hook portion 272 forms an upward-opening hook groove 2721, such as... Figure 2 and Figure 4 As shown, hinged shaft heads 251 are formed on the left and right sides of the upper end of the swing plate 25. The hinged shaft heads 251 are adapted to be disposed in the corresponding hook grooves 2721. That is to say, the hook grooves 2721 are specifically U-shaped grooves, so that the lower part of the hinged shaft head 251 and the bottom of the hook groove 2721 are in arc-shaped contact, which is beneficial to enhance the positioning effect of the hook groove 2721 on the hinged shaft head 251. The lower part of the swing plate 25 can swing back and forth. That is to say, the axis of the hinged shaft head 251 is along the left and right direction, so the lower part of the swing plate 25 can swing back and forth around the axis of the hinged shaft head 251.

[0019] like Figure 1 and Figure 2As shown, during the installation of the ring saw blade 3, the geared motor assembly 23 drives the aforementioned power wheel 22 to rotate. Alternatively, the power wheel 22 can be manually rotated while the machine is stopped. The power wheel 22 drives the ring saw blade 3 to rotate through friction, and the ring saw blade 3 drives the driven wheel 21 to rotate. Observe the relative position of the driven wheel 21 and the ring saw blade 3. When it is found that the ring saw blade 3 is misaligned, rotate the adjusting screw 26 to move it backward relative to the swing plate 25. Since the rear end of the adjusting screw 26 contacts the frame 1, it actually... This causes the lower end of the swing plate 25 to swing forward. If the adjusting screw 26 is rotated in the opposite direction, since the support shaft 24 extends forward and is located on the front side of the swing plate 25, the lower end of the swing plate 25 swings backward due to the gravity of the driven wheel 21 combined with the downward pull of the ring saw blade 3 on the driven wheel 21. Thus, the angle of the axis of the driven wheel 21 relative to the horizontal plane is adjusted through the above operation process. For example, when the ring saw blade 3 deviates forward, that is, when the front end of the ring saw blade 3 is relatively loose, the driven wheel 21 swings clockwise around the hinge head 251 to adjust its position. Figure 2 Under the visual guidance of the camera, the tension of the annular saw blade 3 is made approximately equal at both ends. Then, the tension screw 28 is rotated, causing the slide 27 to move upward. The hook 272 pulls the swing plate 25 upward, causing the driven wheel 21 to move upward, thereby further tensioning the annular saw blade 3. As can be seen from the above, the adjustable annular saw blade 3 of this bone sawing machine is beneficial to the stable operation of the bone sawing machine. By setting the upward-opening hook groove 2721, during the assembly of the bone saw, the hinged shaft head 251 can be easily inserted and installed into the hook groove 2721 from top to bottom. Furthermore, when the driven wheel 21 needs to be replaced, the driven wheel 21 is first lowered by the tension screw 28, then the annular saw blade 3 is removed, and then the driven wheel 21 is lifted, allowing the hinged shaft head 251 to easily detach from the hook groove 2721, facilitating maintenance of the bone saw. During the use of the bone saw, the gravity of the driven wheel 21 combined with the downward pull of the annular saw blade 3 causes the rear end of the adjusting screw 26 to press against the frame 1, while the hook groove 2721 supports the hinged shaft head 251 upwards, allowing the driven wheel 21 to rotate on a fixed axis. Figure 2 As shown, the frame 1 includes a vertical wall panel, and the slide 27 specifically includes a slide plate 271. The rear end of the hook 272 is welded to the front of the slide plate 271. The swing plate 25 and the slide plate 271 are respectively located on the front and rear sides of the vertical wall panel. The hook 272 passes through the vertical wall panel, and the slide plate 271 is located on the rear side of the vertical wall panel, thereby avoiding the slide plate 271 from occupying the front space of the frame 1.

[0020] Furthermore, such as Figure 2 As shown, a handwheel 281 is provided at the upper end of the tensioning screw 28. The handwheel 281 is keyed to the upper end of the tensioning screw 28 and is located on the upper side of the frame 1, so that the user can easily move the driven wheel 21 up and down by turning the handwheel 281 by hand.

[0021] Furthermore, such as Figure 1 and Figure 2 As shown, the driven wheel 21 has spoke weight reduction holes 212. The spoke weight reduction holes 212 can be aligned with the adjusting screw 26. Specifically, there are three spoke weight reduction holes 212, which are evenly distributed around the circumference. The driven wheel 21 is a casting, and the spoke weight reduction holes 212 can be round holes to avoid cracks easily appearing on the edges of the spoke weight reduction holes 212. When the machine is stopped, the driven wheel 21 can be rotated by hand to align the spoke weight reduction holes 212 with the adjusting screw 26, so that the maintenance personnel can observe the adjusting screw 26 from the front side of the driven wheel 21.

[0022] Furthermore, the adjusting screw 26 is a hex socket set screw, and a locking nut 261 is screwed onto the adjusting screw 26. The locking nut 261 is attached to the front side of the swing plate 25. Thus, a socket wrench can be used to loosen the locking nut 261 by passing through the spoke weight reduction hole 212. Then, the adjusting screw 26 can be rotated by passing through the spoke weight reduction hole 212. When the swing plate 25 is adjusted, the locking nut 261 is tightened. The rear end face of the locking nut 261 presses against the front of the swing plate 25, thereby preventing the adjusting screw 26 from loosening.

[0023] Furthermore, such as Figure 1 , Figure 2 and Figure 5 As shown, the frame 1 is equipped with a material platform 4. The right side of the ring saw blade 3 passes through the material platform 4. Specifically, the front part of the material platform 4 has an avoidance slot, which opens forward. Therefore, during the installation of the ring saw blade 3, it can be moved from front to back into the avoidance slot, effectively passing through the material platform 4. The power wheel 22 and the reduction motor assembly 23 are located on the lower side of the material platform 4. The material platform 4 is equipped with a feed plate 5, which slides left and right. Specifically, the front end of the material platform 4 is fixedly connected to a guide rod 52 via a lug. A sliding sleeve 51 slides on the guide rod 52. The front end of the feed plate 5 is mounted on the sliding sleeve 51, and the rear part of the feed plate 5 rests against the material platform 4. During bone cutting, the bone is placed on the material platform 4, and the bone is placed against the feed plate 5. Then, the bone is moved backward, and the ring saw blade 3 rotates to cut the bone. Figure 3 As shown, a retaining edge 211 is formed at the rear end of the driven wheel 21. Since the rear end of the annular saw blade 3 is a flat edge, the rear end of the annular saw blade 3 can abut against the retaining edge 211. The backing plate 5 can be adjusted left and right to facilitate adjustment of the cutting position. The sliding sleeve 51 is screwed with an external thread handle. The lower end of the external thread handle presses against the guide rod 52, thereby locking the backing plate 5 in position.

Claims

1. An adjustable bone saw, comprising a bone sawing mechanism (2), the bone sawing mechanism (2) comprising a driven wheel (21), a power wheel (22) and an annular saw blade (3), the annular saw blade (3) being sleeved on the driven wheel (21) and the power wheel (22), characterized in that: The driven wheel (21) is located above the power wheel (22). The bone sawing mechanism (2) includes a swing plate (25), and a forward-extending support shaft (24) is formed on the lower front side of the swing plate (25). The driven wheel (21) is rotatably mounted on the support shaft (24). The mechanism also includes a frame (1). The bone sawing mechanism (2) includes an adjusting screw (26), a slide (27), and a tensioning screw (28). The adjusting screw (26) is screwed onto the swing plate (25). The rear end of the adjusting screw (26) contacts and connects to the frame (1). The slide (27) slides up and down. On the frame (1), the tensioning screw (28) is vertically installed and rotatably connected to the frame (1). The lower end of the tensioning screw (28) is screwed to the slide (27). A hook (272) is formed on the front side of the slide (27). The hook (272) has an upward-opening hook groove (2721). The upper end of the swing plate (25) has hinge shafts (251) on the left and right sides respectively. The hinge shafts (251) are adapted to be installed in the corresponding hook grooves (2721). The lower part of the swing plate (25) can swing back and forth.

2. The adjustable bone saw according to claim 1, characterized in that: The upper end of the tensioning screw (28) is provided with a handwheel (281).

3. The adjustable bone saw according to claim 1 or 2, characterized in that: The driven wheel (21) has a spoke weight reduction hole (212) which can be aligned with the adjusting screw (26).

4. The adjustable bone saw according to claim 3, characterized in that: The adjusting screw (26) is a hexagonal set screw, and a locking nut (261) is screwed onto the adjusting screw (26), with the locking nut (261) abutting against the front side of the swing plate (25).

5. The adjustable bone saw according to claim 1 or 2, characterized in that: The frame (1) is provided with a material platform (4), the right side of the ring saw blade (3) passes through the material platform (4), the power wheel (22) is located on the lower side of the material platform (4), and the material platform (4) is provided with a feed plate (5), which is slidably arranged left and right.

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