Circular saw blade capable of efficiently discharging chips
By incorporating a tilted blade head and a chip removal groove, the problems of high friction and insufficient chip removal when cutting hard materials with circular saw blades are solved, achieving efficient cutting and extending blade head life.
Patent Information
- Application Number
- CN202422629203.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-30
AI Technical Summary
When cutting hard materials, existing circular saw blades have a large direct contact area between the blade head and the workpiece, resulting in high friction and insufficient chip removal capacity. This leads to high cutting resistance, rapid wear, and easy overheating, affecting cutting efficiency and lifespan.
The cutter head is tilted around the outer periphery of the substrate to form a chip removal channel. A chip removal groove is set on the cutter head to reduce the direct contact area and improve chip removal efficiency. A stable connection is ensured by the positioning groove and positioning post, and the cutting force is evenly distributed.
It reduces cutting friction, improves cutting efficiency and blade life, reduces increased cutting resistance and overheating caused by chip buildup, and extends the life of the circular saw blade.
Smart Images
Figure CN223476473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting tool technology, and in particular to a circular saw blade with high-efficiency chip removal. Background Technology
[0002] A circular saw blade is a commonly used cutting tool, mainly composed of a disc-shaped base and a cutting head that engages with the outer periphery of the base. Circular saw blades are typically made of materials such as superhard alloys and sintered diamond. In use, the circular saw blade is fixed to an infrared automatic bridge cutting machine, and the machine's bearings rotate it at high speed, driving the blade to cut the workpiece. During cutting, the outer edge (cutting edge) of the high-speed rotating cutting head extends into the workpiece to cut it. This process generates a large amount of dust and heat, which is washed away by cooling water that carries away surface dust and heat. Therefore, the working process of a circular saw blade involves the simultaneous wear of the cutting head and the workpiece. Especially when cutting hard materials such as concrete, problems such as rapid cutting head wear, high cutting resistance, and dust accumulation leading to overheating often arise, affecting cutting efficiency and the blade's lifespan.
[0003] Referring to the authorized publication number CN214815394U, a hot-pressed sintered circular saw blade is disclosed, comprising a circular saw blade base and saw teeth. Multiple saw teeth are provided on the outer edge of the circular saw blade base, and the circular saw blade base is fixedly connected to each saw tooth. The multiple saw teeth are arranged counterclockwise in an orderly manner on the outer edge of the circular saw blade base. In actual cutting, both the upper and lower surfaces of the saw teeth have direct contact with the cutting surface of the workpiece, resulting in significant friction during cutting, high cutting resistance, and rapid wear. Simultaneously, the chip removal channel is formed close to the spacing between adjacent saw teeth, resulting in insufficient chip removal capacity. This easily leads to the accumulation of chips generated during cutting, increasing cutting resistance and causing the circular saw blade to overheat. Utility Model Content
[0004] Therefore, it is necessary to provide circular saw blades with high-efficiency chip removal to solve the problems of large direct contact area between the blade head and the workpiece during the cutting process and insufficient chip removal capacity.
[0005] To achieve the above objectives, this utility model provides a high-efficiency chip removal circular saw blade, which includes a base and a plurality of cutting heads; the base is disc-shaped with a central shaft hole; the cutting heads include an inner edge and an outer edge with a cutting function; the plurality of cutting heads are obliquely disposed on the outer periphery of the base through their inner edges.
[0006] Furthermore, the tilt angle is 10°-20°.
[0007] Furthermore, the inner edge of the cutting head is configured to correspond to the outer peripheral shape of the substrate, so that the outer peripheral of the substrate and the inner edge of the cutting head fit together and connect.
[0008] Furthermore, the inner edge of the cutter head is provided with a positioning groove, and the outer periphery of the base body is provided with a positioning post corresponding to the positioning groove. The positioning post is inserted into the positioning groove so that the outer periphery of the base body is connected to the cutter head.
[0009] Furthermore, adjacent cutting heads have a circumferential pitch on the outer periphery of the substrate.
[0010] Furthermore, the circumferential pitch between several cutting heads is equal.
[0011] Furthermore, the upper surface of the cutter head is provided with a chip removal groove, which extends from the inner edge of the cutter head to the outer edge of the cutter head.
[0012] Furthermore, the chip removal grooves are of several kinds, and the several chip removal grooves are arranged in parallel.
[0013] Unlike existing technologies, the above-mentioned technical solution tilts the cutter head to the outer periphery of the substrate, effectively reducing the direct contact area between the cutter head and the workpiece during cutting. This reduces friction, cutting resistance, and improves cutting efficiency. Especially when sawing materials with high hardness, it helps to disperse cutting forces and extend the service life of the saw blade. At the same time, the tilted cutter head creates a chip removal channel between the cutter head and the cutting surface of the workpiece, guiding the chips generated during cutting outward along the chip removal channel. This reduces the increase in cutting resistance and tool wear caused by chip accumulation, effectively avoiding the problem of increased cutting resistance and overheating of the circular saw blade caused by chip accumulation, thus improving cutting efficiency and the service life of the circular saw blade. Attached Figure Description
[0014] Figure 1 A schematic diagram of the structure of a high-efficiency chip-removing circular saw blade;
[0015] Figure 2 A front view of a high-efficiency chip-removing circular saw blade according to a specific implementation method;
[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 A schematic diagram of the cutter head structure in a circular saw blade with high-efficiency chip removal;
[0018] Figure 5 A schematic diagram illustrating the state of the cutter head and the base body in a high-efficiency chip removal circular saw blade.
[0019] Explanation of reference numerals in the attached figures:
[0020] 10. Matrix;
[0021] 101. Shaft hole; 102. Outer periphery of the base; 103. Positioning post;
[0022] 20. Blade tip;
[0023] 201. Inner edge of the cutter head; 202. Outer edge of the cutter head; 203. Upper surface of the cutter head; 204. Chip removal groove; 205. Positioning groove.
[0024] α, Inclination angle;
[0025] D. Circumferential pitch;
[0026] b. The horizontal direction of the outer periphery of the matrix. Detailed Implementation
[0027] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.
[0028] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0029] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0030] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0031] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0032] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0033] Similar to the interpretation in the Patent Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also interpreted in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0034] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0035] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0036] See also Figure 1-Figure 5As shown, this utility model provides a high-efficiency chip-removing circular saw blade, including a base 10 and a plurality of cutter heads 20, with the cutter heads 20 inclinedly disposed on the outer periphery 102 of the base. The inclined placement of the cutter heads 20 effectively reduces the direct contact area between the cutter heads 20 and the workpiece during cutting, thereby reducing the friction generated during cutting, reducing cutting resistance, and improving cutting efficiency; especially when sawing materials with high hardness, it helps to disperse cutting force and extend the service life of the saw blade; at the same time, the inclined cutter heads 20 form a chip removal channel between the cutter heads 20 and the cutting surface of the workpiece, guiding the chips generated during cutting to be discharged outward along the chip removal channel, reducing the increase in cutting resistance and tool wear caused by chip accumulation, effectively avoiding the problem of increased cutting resistance and overheating of the circular saw blade caused by chip accumulation, and improving cutting efficiency and the service life of the circular saw blade.
[0037] See also Figures 1-3 As shown, the following provides an embodiment of the high-efficiency chip removal circular saw blade of the present invention, which includes a base 10 and a plurality of cutter heads 20; the base 10 is disc-shaped, and a shaft hole 101 is provided in the middle; the cutter head 20 includes an inner edge and an outer edge with cutting function; the plurality of cutter heads 20 are obliquely disposed on the outer periphery 102 of the base through their inner edges.
[0038] The circular saw blade is driven to rotate and cut the workpiece through the shaft hole 101. During the cutting operation, the base 10 is rotated at high speed through the shaft hole 101, which in turn causes the cutter head 20 connected to the base 10 to rotate at high speed. The high-speed rotating cutter head 20 (with the outer edge having the cutting function) extends into the workpiece to cut.
[0039] The aforementioned cutting head 20 can be formed from superhard alloy, sintered diamond, or other materials. The aforementioned plurality of cutting heads 20 are inclinedly disposed on the outer periphery 102 of the base body via their inner edges. They can be directly connected by integral molding of the base body 10 and the cutting head 20; alternatively, the base body 10 and the cutting head 20 can be formed separately, and connected by a joint. The joint is achieved by engaging the inner edge 201 of the cutting head with the outer periphery 102 of the base body, allowing the cutting head 20 to rotate together with the base body 10, i.e., the cutting head 20 rotates through the shaft hole 101 of the base body 10 to cut the workpiece. The engagement of the inner edge 201 of the cutting head and the outer periphery 102 of the base body can be achieved by welding or other robust connection methods. The cutting head 20 being inclinedly disposed on the outer periphery 102 of the base body via its inner edge means that the inner edge 201 of the cutting head forms an inclination angle α in the horizontal direction b of the outer periphery of the base body, and does not form an angle with the outer periphery 102 of the base body. The cutter head 20 with different tilt angles α can adapt to workpieces of different hardness and thickness, enabling the circular saw blade to perform excellently in a variety of applications. Preferably, the tilt angle α is 10°-20°, which helps to make the cutting surface of the workpiece smoother and reduces the generation of burrs and cracks, making it suitable for high-precision cutting applications. In some embodiments, the cutter head 20 is inclined along its inner edge on the outer periphery 102 of the base, with a tilt angle α of 15°.
[0040] The inner edge 201 of the cutting head is connected to the outer periphery 102 of the base body, so that the cutting head 20 can rotate together with the base body 10, that is, the cutting head 20 rotates through the shaft hole 101 of the base body 10 to cut the workpiece; see Figure 4 As shown, to ensure a stable connection between the inner edge 201 of the cutting head and the outer periphery 102 of the substrate, the inner edge 201 of the cutting head is concave outwards, i.e., the inner edge 201 of the cutting head is shaped to correspond to the outer periphery 102 of the substrate, so that the outer periphery 102 of the substrate and the inner edge 201 of the cutting head fit together. This increases the contact area between the cutting head 20 and the outer periphery 102 of the substrate, improves the overall stability of the structure, and makes the cutting force distribution more uniform. It effectively avoids overload caused by local stress concentration, reduces wear and damage that may occur during long-term use, and thus significantly extends the service life of the cutting head 20. In addition, the uniform cutting force distribution also promotes smooth cutting operations and reduces vibration and noise during operation.
[0041] See also Figures 4-5As shown, the inner edge 201 of the aforementioned cutting head is shaped to correspond to the outer periphery 102 of the base body, so that the outer periphery 102 of the base body and the inner edge 201 of the cutting head fit together. To achieve precise alignment and fixation between the base body 10 and the cutting head 20, a positioning groove 205 is provided on the inner edge 201 of the cutting head, and a positioning post 103 is provided on the outer periphery 102 of the base body corresponding to the positioning groove 205. The positioning post 103 is inserted into the positioning groove 205 to connect the outer periphery 102 of the base body to the cutting head 20. The positioning groove 205 and the positioning post 103 enable precise alignment and fixation between the base body 10 and the cutting head 20. During assembly, the positioning pin 103 is inserted into the positioning groove 205 to ensure accurate positional relationship between the base body 10 and the cutter head 20, avoiding problems such as decreased cutting accuracy or structural instability caused by misalignment. Simultaneously, the mating design of the positioning groove 205 and the positioning pin 103 simplifies the assembly process and improves production efficiency. It eliminates the need for complex tools or additional fasteners, allowing for quick and accurate connection between the cutter head 20 and the base body 10, reducing assembly costs and time. Furthermore, the positioning pin 103 and the positioning groove 205 create an additional mechanical locking effect, significantly enhancing the connection strength between the base body 10 and the cutter head 20. This design makes the cutter head 20 more stable when subjected to cutting forces, reducing the risk of damage due to loosening. The positioning post 103 can be a cylinder, cuboid, tetrahedron, etc. In some embodiments, the positioning post 103 is a cuboid. The cuboid positioning post can also provide clearer installation instructions, making it easier for operators to determine the correct installation position and tilt angle of the cutter head 20, so that the cutter head 20 is tilted on the outer periphery 102 of the base; at the same time, it effectively prevents the cutter head 20 from shaking or shifting during operation, ensuring the stability and accuracy of the cutter head 20.
[0042] Multiple cutting heads 20 are connected to the outer periphery 102 of the substrate via their outer edges. The multiple cutting heads 20 can be closely arranged and connected to the outer periphery 102 of the substrate; see [link to documentation]. Figure 2-Figure 3As shown, the cutting heads 20 can also be spaced apart on the outer periphery 102 of the base, that is, adjacent cutting heads 20 have a circumferential pitch D on the outer periphery 102 of the base, so that a chip removal channel is formed between adjacent cutting heads 20, making it easier for the chips generated during cutting to be discharged from the cutting area, reducing blockage and heat accumulation during the cutting process, thereby improving cutting efficiency and processing speed; at the same time, it reduces the vibration and resonance between the cutting heads 20 during the cutting process, thereby reducing the vibration and noise generated during cutting. The circumferential pitch D of the adjacent cutting heads 20 on the outer periphery 102 of the substrate may be different, meaning that the multiple cutting heads 20 are not equally distributed along the outer periphery 102 of the substrate; alternatively, the circumferential pitch D of the adjacent cutting heads 20 on the outer periphery 102 of the substrate may be the same, meaning that the multiple cutting heads 20 are equally distributed along the outer periphery 102 of the substrate, so that the cutting force is more evenly distributed on the entire substrate 10, so that the cutting force can be evenly transmitted to the substrate 10, reducing the vibration and deviation of the substrate 10 caused by uneven cutting force; at the same time, it makes the cutting heads 20 contact the workpiece more evenly during the cutting process, reducing the concentration and uneven distribution of cutting force, and improving cutting stability.
[0043] See also Figure 4 As shown, in order to make it easier for the chips generated during cutting to be discharged from the cutting area, reduce blockage and heat accumulation during the cutting process, thereby improving cutting efficiency and processing speed, a chip removal groove 204 can also be provided on the upper surface 203 of the cutting head, the chip removal groove 204 extending from the inner edge 201 of the cutting head to the outer edge 202 of the cutting head.
[0044] The chip removal grooves 204 described above can promptly flush away a large amount of dust generated during the cutting process, reducing the accumulation and buildup of dust at the end of the cutter head 20. This is typically achieved through mechanical cutting, chemical etching, laser etching, or other methods. The shape, size, and depth of the chip removal grooves 204 are not limited. The size of the chip removal grooves 204 can be designed based on the actual dimensions of the cutter head 20 and chip removal requirements. The shape of the chip removal grooves 204 can be regular (e.g., arc-shaped, strip-shaped, arched, etc.) or irregular. Providing several chip removal grooves 204 on the upper surface 203 of the cutter head can significantly accelerate the chip removal speed of the cutter head 20, improve cutting efficiency, and ensure efficient cutting. Specifically, several chip removal grooves 204 are provided on the upper surface 203 of each cutter head. These grooves can be partially identical, all identical, partially different, or completely different. The chip removal grooves 204 on the upper surface 203 of the cutter head can be regularly or irregularly distributed. In some embodiments, the chip removal grooves 204 are uniformly distributed radially along the base 10 on the upper surface 203 of the cutter head. See also Figure 4As shown, in some embodiments, a plurality of chip removal grooves 204 are arranged in parallel on the upper surface 203 of the cutting head. In some embodiments, the plurality of chip removal grooves 204 are spirally distributed on the upper surface 203 of the cutting head. In some embodiments, the distribution of the plurality of chip removal grooves 204 on the upper surface 203 of the cutting head is not uniform, but is arranged according to specific cutting requirements.
[0045] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.
Claims
1. A high-efficiency chip-removing circular saw blade, characterized in that, It includes a base and several cutting heads; the base is disc-shaped with a central shaft hole; each cutting head includes an inner edge and an outer edge with a cutting function; several cutting heads are obliquely disposed on the outer periphery of the base through their inner edges; The inner edge of the cutter head is provided with a positioning groove, and the outer periphery of the base body is provided with a positioning post corresponding to the positioning groove. The positioning post is inserted into the positioning groove so that the outer periphery of the base body is connected to the cutter head.
2. The high-efficiency chip-removing circular saw blade according to claim 1, characterized in that, The tilt angle is 10°-20°.
3. The high-efficiency chip-removing circular saw blade according to claim 1, characterized in that, The inner edge of the cutting head is configured to correspond to the outer circumferential shape of the substrate, so that the outer circumference of the substrate and the inner edge of the cutting head fit together and connect.
4. The high-efficiency chip-removing circular saw blade according to claim 1, characterized in that, The adjacent cutting heads have a circumferential pitch on the outer periphery of the substrate.
5. The high-efficiency chip-removing circular saw blade according to claim 4, characterized in that, The circumferential pitch between several cutting heads is equal.
6. The high-efficiency chip-removing circular saw blade according to claim 1, characterized in that, The upper surface of the cutter head is provided with a chip removal groove, which extends from the inner edge of the cutter head to the outer edge of the cutter head.
7. The high-efficiency chip-removing circular saw blade according to claim 6, characterized in that, The chip removal grooves are of several kinds, and the chip removal grooves are arranged in parallel.