Tooth dividing device of multipurpose saw blade with three rows of teeth

Abstract

The invention discloses a tooth dividing device for a three-row-tooth multipurpose saw blade, relates to the technical field of saw blade tooth dividing, and aims to solve the technical problems that when a multi-row-tooth saw blade adopts traditional single-row-tooth tooth dividing equipment, the operation is tedious, the efficiency is low, and the tooth dividing precision is difficult to guarantee. A synchronizing mechanism is arranged on the inner side of the rack, a tooth dividing mechanism is arranged on the inner side of the synchronizing mechanism, and the synchronizing mechanism is used for driving the tooth dividing mechanism to execute tooth dividing action. The synchronizing mechanism and the tooth dividing mechanism are matched with each other, a lower tooth dividing die and an upper tooth dividing die in the synchronizing mechanism are oppositely arranged, the lower tooth dividing die and the upper tooth dividing die are driven by a driving piece to accurately, stably and synchronously move oppositely along a guide rod, and top teeth of the tooth dividing mechanism are arranged on the opposite inner sides of the lower tooth dividing die and the upper tooth dividing die in a staggered mode. And the main tooth section and the branch tooth section of the saw blade body correspond to each other, so that the three rows of teeth are synchronously divided and uniformly staggered.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of saw blade tooth splitting, more particularly to a three-row-tooth multi-purpose saw blade tooth splitting device. BACKGROUND

[0002] A saw blade is a cutting tool widely used in wood processing, metal cutting, building material construction and other fields. The core working component of the saw blade is a saw tooth. The cutting performance and service life of the saw tooth depend largely on the quality of tooth splitting, that is, by alternately bending the adjacent saw teeth to the left and right sides to form a uniform staggered arrangement, also known as tooth splitting. This process can provide the necessary chip space for the saw blade when cutting materials, effectively reducing frictional resistance, preventing the saw blade from overheating and being clamped by the material, and thus ensuring the flatness and smoothness of the cutting surface.

[0003] At present, for single-row-tooth splitting, there are machine tool type tooth splitting equipment to replace manual operation, but the design principle still revolves around single-row-tooth, and a single force applying mechanism is used to sequentially stamp the saw teeth.

[0004] To improve the cutting performance, multi-row-tooth saw blades have emerged. Multi-row-tooth design can bring faster cutting speed, better chip removal effect or narrower cutting gap. However, when such multi-row-tooth saw blades need to be split, using traditional single-row-tooth splitting equipment or method faces serious challenges: the operator must perform repeated and sequential splitting operations on each row of saw teeth. This not only is tedious and inefficient, but also is difficult to ensure complete consistency due to repeated positioning, which can easily lead to uneven stagger angles of the rows of saw teeth and accumulated errors. Such errors can destroy the balance and stiffness of the saw blade, causing vibration during cutting, seriously affecting cutting accuracy and surface quality, and possibly shortening the service life of the saw blade. In view of this, we propose a three-row-tooth multi-purpose saw blade tooth splitting device. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art, adapt to the needs of reality, and provide a three-row-tooth multi-purpose saw blade tooth splitting device to solve the technical problems of tedious operation, low efficiency, and difficulty in ensuring splitting accuracy when using traditional single-row-tooth splitting equipment for multi-row-tooth saw blades.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a three-row-tooth multi-purpose saw blade tooth splitting device, comprising a rack composed of a back plate and a base and a saw blade body, a synchronous mechanism is arranged on the inner side of the rack, a tooth splitting mechanism is arranged on the inner side of the synchronous mechanism, and the synchronous mechanism is used to drive the tooth splitting mechanism to perform a tooth splitting action. The saw blade body is provided with a main tooth segment and at least two groups of tooth splitting segments. The synchronous mechanism comprises a lower tooth splitting die and an upper tooth splitting die, and the lower tooth splitting die and the upper tooth splitting die are arranged oppositely. The tooth-splitting mechanism includes multiple top teeth, which are staggered and arranged on the opposite inner sides of the lower and upper tooth-splitting molds. The working end profile of each top tooth includes a shrinking section, a rapidly converging section, and a pointed section connected in sequence. From the shrinking section to the pointed section, the cross-sectional width continuously decreases. Furthermore, the contour convergence rate of the rapidly converging section is greater than that of the shrinking section, so that the pointed section forms a sharp part for pressing the tip of the saw teeth. The tip of the top tooth is provided corresponding to the main tooth section and the sub-tooth section of the saw blade body, and is used to make the adjacent saw teeth of the main tooth section and the sub-tooth section form an alternating arrangement under the drive of the synchronization mechanism.

[0007] Preferably, the synchronization mechanism further includes a driving component, a guide rod, and a connecting rod assembly. The driving component is connected to the lower dividing tooth mold, and the upper dividing tooth mold and the lower dividing tooth mold are slidably disposed on the outside of the guide rod and are linked together through the connecting rod assembly to achieve synchronous opposing movement of the upper dividing tooth mold and the lower dividing tooth mold.

[0008] Preferably, the linkage assembly includes a first linkage, a second linkage, and a third linkage. One end of the first linkage is rotatably mounted to the lower toothed mold, and the other end is rotatably mounted to one end of the second linkage. The middle part of the second linkage is rotatably mounted to the back plate, and the other end is rotatably mounted to one end of the third linkage. The other end of the third linkage is rotatably connected to the upper toothed mold.

[0009] Preferably, the tooth-splitting mechanism further includes a mounting base and a fixing base. The mounting base is respectively disposed on the inner side of the upper tooth-splitting mold and the lower tooth-splitting mold, and the fixing base is disposed on the inner side of the mounting base. The top tooth is fixedly mounted on the inner side of the fixing base.

[0010] Preferably, the driving component is an electric push rod, the cylinder end of which is mounted on the base of the frame, and the push rod end is connected to the lower tooth mold.

[0011] Preferably, it also includes a limiting mechanism, which includes a first fixing frame and a second fixing frame. The first fixing frame is provided with a first limiting groove for accommodating the tail of the saw blade body, and the second fixing frame is provided with a second limiting groove for fitting the side of the saw blade body. Both the first and second fixing brackets are located inside the mounting groove of the back plate.

[0012] Preferably, the second fixing bracket is fixedly installed to the back plate through a slotted hole and bolts. The position of the second fixing bracket in the mounting groove can be adjusted by adjusting the position of the bolts in the slotted hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a synchronization mechanism and a tooth-splitting mechanism in cooperation. The lower and upper tooth-splitting molds in the synchronization mechanism are arranged opposite each other. Driven by the driving component, the lower and upper tooth-splitting molds move synchronously and precisely and stably in opposite directions along the guide rod. The top teeth of the tooth-splitting mechanism are staggered and arranged on the inner sides of the lower and upper tooth-splitting molds, corresponding to the main tooth section and tooth-splitting section of the saw blade body. This achieves the effect of synchronous tooth splitting and uniform staggered arrangement of three rows of teeth, solving the problems of cumbersome operation, low efficiency, and difficulty in guaranteeing tooth splitting accuracy when using traditional single-row tooth splitting equipment for multi-row tooth saw blades.

[0014] 2. The present invention also uses a three-section contour structure of the top tooth, the contraction section, the abrupt contraction section, and the tip section. The contour of the top tooth satisfies the requirement that the cross-sectional width of the top tooth continuously decreases from the contraction section to the tip section. The contour convergence rate of the abrupt contraction section is greater than that of the contraction section. This makes the tip section a sharp part for precisely pressing the tip of the saw tooth. This achieves the effect of precisely pressing and shaping only the tip of the saw tooth without touching the root of the saw tooth. This ensures that the tip of the tooth is evenly pressed and the deformation is controllable. This further solves the problems of tip chipping, tooth shape damage, and poor consistency of tooth angle caused by improper force.

[0015] 3. The present invention also provides a limiting mechanism, which uses the first limiting groove on the first fixing frame to stably accommodate the tail of the saw blade body, and the second limiting groove on the second fixing frame to closely fit the side of the saw blade body, thereby achieving bidirectional limiting of the saw blade body and preventing the saw blade from shifting during the tooth splitting process. In addition, the second fixing frame is fixed to the back plate through the waist-shaped hole and bolts, which can finely adjust the position of the saw blade body, thereby achieving the clamping and position fine adjustment of the saw blade body and ensuring the precise alignment of each row of saw teeth with the corresponding top teeth. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a front view of the present invention. Figure 3 This is a schematic diagram of the external structure of the synchronization mechanism of the present invention; Figure 4 This is a schematic diagram of the external structure of the tooth-splitting mechanism of the present invention; Figure 5 This is a schematic diagram of the top tooth and its related structures of the present invention; Figure 6 This is a schematic diagram of the external structure of the limiting mechanism of the present invention; Figure 7 This is a schematic diagram of the external structure of the saw blade body of the present invention; Figure 8 This is a schematic diagram of the external structure of the saw blade body after teeth are separated according to the present invention.

[0017] The following are the labeling instructions in the diagram: 1. Frame; 101. Back plate; 1011. Mounting slot; 102. Base; 2. Synchronization mechanism; 201. Electric push rod; 202. Guide rod; 203. Lower toothed mold; 204. Upper toothed mold; 205. First connecting rod; 206. Second connecting rod; 207. Third connecting rod; 3. Tooth-splitting mechanism; 301. Mounting seat; 302. Fixed seat; 303. Top tooth; 3031. Retraction section; 3032. Rapid retraction section; 3033. Tip section; 4. Limiting mechanism; 401. First fixed frame; 4011. First limiting slot; 402. Second fixed frame; 4021. Second limiting slot; 4022. Waist-shaped hole; 5. Saw blade body; 501. Main tooth section; 502. Tooth-splitting section. Detailed Implementation

[0018] Example: Figures 1 to 8 As shown, the present invention relates to a tooth-splitting device for a three-row toothed multi-purpose saw blade, comprising a frame 1 consisting of a back plate 101 and a base 102 and a saw blade body 5. A synchronization mechanism 2 is provided inside the frame 1, and a tooth-splitting mechanism 3 is provided inside the synchronization mechanism 2. The synchronization mechanism 2 is used to drive the tooth-splitting mechanism 3 to perform tooth-splitting actions. The saw blade body 5 is provided with a main tooth section 501 and at least two sets of tooth sections 502; Synchronization mechanism 2 includes a lower tooth mold 203 and an upper tooth mold 204, which are arranged opposite to each other. The tooth-splitting mechanism 3 includes multiple top teeth 303, which are staggered on the inner sides of the lower tooth-splitting mold 203 and the upper tooth-splitting mold 204. The working end profile of the top teeth 303 includes a shrinking section 3031, a rapidly converging section 3032, and a tip section 3033 connected in sequence. From the shrinking section 3031 to the tip section 3033, the cross-sectional width continuously decreases. Moreover, the contour convergence rate of the rapidly converging section 3032 is greater than that of the shrinking section 3031, so that the tip section 3033 forms a sharp part for pressing the tip of the saw teeth. This achieves the effect of precisely pressing and shaping only the tip of the saw teeth without touching the root of the saw teeth, ensuring that the tip of the teeth is evenly pressed and the deformation is controllable. This solves the problems of tip chipping, tooth shape damage, and poor consistency of tooth-splitting angle caused by improper force.

[0019] The tip 3033 of the top tooth 303 corresponds to the main tooth section 501 and the tooth-splitting section 502 of the saw blade body 5. It is used to make the adjacent saw teeth of the main tooth section 501 and the tooth-splitting section 502 form an interlaced arrangement under the drive of the synchronization mechanism 2. The present invention uses the synchronization mechanism 2 and the tooth-splitting mechanism 3 to cooperate with each other. The lower tooth-splitting mold 203 and the upper tooth-splitting mold 204 in the synchronization mechanism 2 are set opposite to each other. Under the drive of the driving component, the lower tooth-splitting mold 203 and the upper tooth-splitting mold 204 are driven to move synchronously and precisely and stably in opposite directions along the guide rod 202. The top tooth 303 of the tooth-splitting mechanism 3 is staggered on the relative inner side of the lower tooth-splitting mold 203 and the upper tooth-splitting mold 204, and corresponds to the main tooth section 501 and the tooth-splitting section 502 of the saw blade body 5. This achieves the effect of synchronous tooth splitting of three rows of teeth and uniform interlaced arrangement, which solves the problems of cumbersome operation, low efficiency and difficulty in guaranteeing tooth splitting accuracy when using traditional single-row tooth splitting equipment for multi-row tooth saw blades.

[0020] Furthermore, the synchronization mechanism 2 also includes a drive component, a guide rod 202, and a linkage assembly. The drive component is connected to the lower dividing gear mold 203. The upper dividing gear mold 204 and the lower dividing gear mold 203 are slidably disposed on the outside of the guide rod 202 and are linked by the linkage assembly to achieve synchronous opposing movement of the upper dividing gear mold 204 and the lower dividing gear mold 203. The linkage assembly includes a first linkage 205, a second linkage 206, and a third linkage 207. One end of the first linkage 205 is rotatably mounted to the lower dividing gear mold 203, and the other end is rotatably mounted to one end of the second linkage 206. The middle part of the second linkage 206 is connected to the back plate 1. 01 is rotatably installed, with its other end rotatably installed with one end of the third connecting rod 207. The other end of the third connecting rod 207 is rotatably connected to the upper toothed mold 204. The driving component is an electric push rod 201. The cylinder end of the electric push rod 201 is set on the base 102 of the frame 1, and its push rod end is connected to the lower toothed mold 203. The synchronous mechanism 2 structure, composed of the lower toothed mold 203, the upper toothed mold 204, the guide rod 202, and the connecting rod assembly, realizes the precise synchronous opposing movement of the lower toothed mold 203 and the upper toothed mold 204, so that the multiple rows of top teeth 303 act on each row of saw teeth of the saw blade at one time.

[0021] Furthermore, the tooth-splitting mechanism 3 also includes a mounting base 301 and a fixing base 302. The mounting base 301 is respectively disposed on the inner side of the upper tooth-splitting mold 204 and the lower tooth-splitting mold 203. The fixing base 302 is disposed on the inner side of the mounting base 301. The top tooth 303 is fixedly installed on the inner side of the fixing base 302. Through the structure of the mounting base 301 and the fixing base 302 in the tooth-splitting mechanism 3 to fix the top tooth 303, it is ensured that the top tooth 303 is stable and does not loosen or deviate during the tooth-splitting process.

[0022] Furthermore, it also includes a limiting mechanism 4, which includes a first fixing frame 401 and a second fixing frame 402. The first fixing frame 401 is provided with a first limiting groove 4011 for accommodating the tail of the saw blade body 5, and the second fixing frame 402 is provided with a second limiting groove 4021 for fitting against the side of the saw blade body 5. Both the first fixing frame 401 and the second fixing frame 402 are located inside the mounting groove 1011 of the back plate 101. The second fixing frame 402 is fixedly installed to the back plate 101 through a slotted hole 4022 and bolts. By adjusting the position of the bolts in the slotted hole 4022, the second fixing frame 402 can be adjusted. The position of the frame 402 within the mounting slot 1011 is achieved by setting a limiting mechanism 4. The first limiting groove 4011 on the first fixed frame 401 stably accommodates the tail of the saw blade body 5, and the second limiting groove 4021 on the second fixed frame 402 closely fits the side of the saw blade body 5, thereby achieving bidirectional limiting of the saw blade body 5 and preventing the saw blade from shifting during tooth splitting. Furthermore, the second fixed frame 402 is fixedly engaged with the back plate 101 through the waist-shaped hole 4022 and bolts, which allows for fine adjustment of the position of the saw blade body 5, thereby achieving clamping and fine-tuning of the position of the saw blade body 5 and ensuring that each row of saw teeth is precisely aligned with the corresponding top tooth 303.

[0023] Working principle: This embodiment provides a tooth-splitting device for a three-row toothed multi-purpose saw blade. In use, the operator places the tail of the saw blade body 5 in the first limiting groove 4011 of the first fixing frame 401, using the first limiting groove 4011 to longitudinally limit the tail of the saw blade body 5. At the same time, the side of the saw blade body 5 is placed against the second limiting groove 4021 of the second fixing frame 402, using the second limiting groove 4021 to laterally limit the saw blade body 5. Since there may be slight differences in saw blade specifications or slight deviations during installation, the bolts at the waist-shaped hole 4022 on the second fixing frame 402 can be adjusted to allow the second fixing frame 402 to slide inside the mounting groove 1011 of the back plate 101, thereby fine-tuning the position of the saw blade body 5. Ultimately, this ensures that the main tooth section 501 and the tooth-splitting section 502 of the saw blade body 5 can be accurately aligned with the top tooth 303 used for subsequent tooth splitting. After the saw blade positioning fine-tuning is completed, the electric push rod 201 of the activation device is activated. The electric push rod 201 pushes the lower dividing tooth mold 203, causing the lower dividing tooth mold 203 to slide vertically upward along the outer side of the guide rod 202. At the same time, as the lower dividing tooth mold 203 moves upward, it drives the first connecting rod 205, which is rotatably mounted on its back, to rotate around the connection point. During the rotation of the first connecting rod 205, it drives the second connecting rod 206, which is hinged to it, to rotate synchronously around its own center point. The rotation of the second connecting rod 206 further drives the third connecting rod 207 to rotate around the connection point. The other end of the third connecting rod 207 is connected to the upper dividing tooth mold 204, thereby pulling the upper dividing tooth mold 204 to slide vertically downward along the outer side of the guide rod 202. Through the linkage action of the above-mentioned connecting rod group, the bidirectional synchronous movement of the lower dividing tooth mold 203 moving upward and the upper dividing tooth mold 204 moving downward is achieved, and the movement speed and displacement of the two are consistent. Mounting bases 301 are fixedly provided on the inner sides of both the upper and lower tooth molds 204 and 203. Multiple sets of fixing bases 302 are evenly arranged on the inner side of the mounting bases 301. The fixing bases 302 are used to fix the top tooth 303. The top tooth 303 includes, from the root to the tip, a smoothly introduced contraction section 3031, a transitional rapid contraction section 3032, and a working tip section 3033. As the upper and lower toothed molds 204 and 203 move in opposite directions, the top tooth 303 mounted on the mounting base 301 gradually approaches the main tooth section 501 and the toothed section 502 of the saw blade body 5. At this time, the tip 3033 of the top tooth 303 precisely acts on the multiple rows of saw teeth in the main tooth section 501 and the toothed section 502. Through the opposing pressure of the upper and lower toothed molds 204 and 203, the adjacent saw teeth in the main tooth section 501 and the toothed section 502 undergo slight deformation in different directions, ultimately presenting a uniform staggered arrangement. When the staggered amplitude of the saw teeth reaches the preset requirement, the electric push rod 201 is turned off, and the lower toothed mold 203 and the upper toothed mold 204 are reset under the reverse linkage of the connecting rod assembly. The operator can then remove the saw blade body 5 to complete the entire tooth splitting operation.

[0024] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A tooth-splitting device for a three-row multi-purpose saw blade, comprising a frame (1) consisting of a back plate (101) and a base (102) and a saw blade body (5), characterized in that, A synchronization mechanism (2) is provided inside the frame (1), and a tooth-splitting mechanism (3) is provided inside the synchronization mechanism (2). The synchronization mechanism (2) is used to drive the tooth-splitting mechanism (3) to perform tooth-splitting action. The saw blade body (5) is provided with a main tooth section (501) and at least two sets of tooth sections (502). The synchronization mechanism (2) includes a lower tooth mold (203) and an upper tooth mold (204), which are arranged opposite to each other. The tooth-splitting mechanism (3) includes multiple top teeth (303), which are staggered on the inner sides of the lower tooth-splitting mold (203) and the upper tooth-splitting mold (204). The working end profile of the top teeth (303) includes a shrinking section (3031), a rapidly converging section (3032), and a tip section (3033) connected in sequence. From the shrinking section (3031) to the tip section (3033), the cross-sectional width continuously decreases; and the contour convergence rate of the rapidly converging section (3032) is greater than that of the shrinking section (3031), so that the tip section (3033) forms a sharp part for pressing the tip of the saw teeth. The tip section (3033) of the top tooth (303) is provided corresponding to the main tooth section (501) and the sub-tooth section (502) of the saw blade body (5), and is used to make the adjacent saw teeth of the main tooth section (501) and the sub-tooth section (502) form an alternating arrangement under the drive of the synchronization mechanism (2).

2. The tooth-splitting device for a three-row toothed multi-purpose saw blade according to claim 1, characterized in that, The synchronization mechanism (2) further includes a driving component, a guide rod (202), and a linkage assembly. The driving component is connected to the lower tooth mold (203). The upper tooth mold (204) and the lower tooth mold (203) are slidably disposed on the outside of the guide rod (202) and are linked together through the linkage assembly to achieve synchronous opposing movement of the upper tooth mold (204) and the lower tooth mold (203).

3. The tooth-splitting device for a three-row toothed multi-purpose saw blade according to claim 2, characterized in that, The linkage assembly includes a first linkage (205), a second linkage (206), and a third linkage (207). One end of the first linkage (205) is rotatably mounted to the lower toothed mold (203), and the other end is rotatably mounted to one end of the second linkage (206). The middle part of the second linkage (206) is rotatably mounted to the back plate (101), and the other end is rotatably mounted to one end of the third linkage (207). The other end of the third linkage (207) is rotatably connected to the upper toothed mold (204).

4. The tooth-splitting device for a three-row toothed multi-purpose saw blade according to claim 1, characterized in that, The tooth-splitting mechanism (3) further includes a mounting base (301) and a fixing base (302). The mounting base (301) is respectively disposed on the inner side of the upper tooth-splitting mold (204) and the lower tooth-splitting mold (203). The fixing base (302) is disposed on the inner side of the mounting base (301). The top tooth (303) is fixedly installed on the inner side of the fixing base (302).

5. The tooth-splitting device for a three-row toothed multi-purpose saw blade according to claim 2, characterized in that, The driving component is an electric push rod (201), the cylinder end of which is mounted on the base (102) of the frame (1), and its push rod end is connected to the lower tooth mold (203).

6. The tooth-splitting device for a three-row toothed multi-purpose saw blade according to claim 1, characterized in that, It also includes a limiting mechanism (4), which includes a first fixing frame (401) and a second fixing frame (402). The first fixing frame (401) is provided with a first limiting groove (4011) for accommodating the tail of the saw blade body (5), and the second fixing frame (402) is provided with a second limiting groove (4021) for fitting the side of the saw blade body (5). Both the first fixing bracket (401) and the second fixing bracket (402) are located inside the mounting groove (1011) of the back plate (101).

7. The tooth-splitting device for a three-row toothed multi-purpose saw blade according to claim 6, characterized in that, The second fixing bracket (402) is fixedly installed to the back plate (101) through the waist-shaped hole (4022) and bolts. By adjusting the position of the bolt in the waist-shaped hole (4022), the position of the second fixing bracket (402) in the mounting groove (1011) can be adjusted.

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