A multi-blade cutting tool

Abstract

This utility model discloses a multi-blade cutting tool in the field of cutting tools, including a tool holder, at least one end of which is provided with a cutting head, the surface of which is provided with a plurality of first cutting edges, which are evenly distributed along the circumference of the cutting head, and the surfaces of the plurality of first cutting edges are respectively provided with a plurality of chip removal grooves, which are spirally distributed along the surfaces of the first cutting edges. A circular cutter disc is fixedly provided on the surface of the tool holder, and the surface of the circular cutter disc is provided with a plurality of second cutting edges, which are evenly distributed along the circumference of the circular cutter disc and are all inclined. By setting the first and second cutting edges, the first cutting edge generates an upward cutting force when machining the workpiece, avoiding the formation of burrs on the outer surface of the machined surface, and the second cutting edge generates a side cutting force when machining the workpiece, avoiding the formation of burrs on the side of the machined surface, which can effectively solve the problem of easy burr formation in existing straight cutter machining.

Description

Technical Field

[0001] This utility model relates to the field of cutting tools, specifically a multi-blade cutting tool. Background Technology

[0002] A cutting tool is a specialized cutting tool used for cutting materials. Its sharp blade effectively cuts materials of varying hardness. They are made from diverse materials, typically high-speed steel, cemented carbide, and spring steel, with the cutting teeth sometimes made of advanced materials such as diamond composite sheets. The design and materials of cutting tools vary depending on the application and the material being cut. For example, a diamond cutting tool used for cutting copper-clad laminates has a spring steel body and welded diamond composite sheets for the cutting teeth. They are widely used in manufacturing and suitable for processing a variety of materials, including but not limited to aluminum alloys, steel, stainless steel, and other metallic materials, as well as wood, plastics, and other non-metallic materials.

[0003] Publication (Announcement) No.: CN218019073U, a straight cutting tool includes a shank and a cutting head; one end of the shank is provided with a limiting boss, which is connected to the cutting head and is located along the radial direction of the shank, with the edge of the limiting boss located outside the edge of the shank; the shank is also provided with a clearance groove to ensure that the end face of the limiting boss fits against the fixture; in use, one end of the shank is inserted into the corresponding fixture, and since the edge of the limiting boss protrudes outside the shank, the end face of the limiting boss will fit against the end face of the fixture, thereby achieving limiting; it is easy to operate, has high installation accuracy, and can effectively reduce installation difficulty; at the same time, the clearance groove can ensure that the fixture contacts the limiting boss, avoiding contact between the fixture and the guide radius between the shank and the limiting boss, thus improving control accuracy; its structure is simple, easy to process, and does not add additional auxiliary equipment, effectively controlling the overall cost of the cutting tool.

[0004] The above-mentioned straight blade has the following defects:

[0005] 1) When a straight cutter is cutting, it generates an upward cutting force to cut the workpiece. However, after cutting, the inner end face and side face of the workpiece will produce burrs, which need to be further treated with equipment such as a grinder, which is very troublesome.

[0006] 2) In addition, when a straight cutter is used to process material, it rotates and propels the material horizontally, which easily generates cutting chips or shavings. These chips accumulate at the top of the cutter head as the cutter moves, eventually causing blockage. The accumulated chips cause some parts of the cutter head to repeatedly cut chips. Once the chips become blocked, the cutting operation cannot continue, and the processing must be temporarily stopped. The cutting tool must be replaced or disassembled to remove chips before further processing can be carried out. Therefore, the processing efficiency is significantly reduced, and the processing cost is increased. Utility Model Content

[0007] In order to overcome the shortcomings of existing technical solutions, this utility model provides a multi-blade cutting knife, which can effectively solve the technical problems of existing straight knife processing being prone to producing burrs and the difficulty in chip removal during the cutting process, which leads to the straight knife being prone to clogging.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a multi-blade cutting knife, including a handle, at least one end of the handle is provided with a cutting head, the surface of the cutting head is provided with a plurality of first cutting edges, the plurality of first cutting edges are evenly distributed along the circumferential direction of the cutting head, the surface of the plurality of first cutting edges is respectively provided with a plurality of chip removal grooves, the plurality of chip removal grooves are spirally distributed along the surface of the first cutting edges, a circular cutting disc is fixedly provided on the surface of the handle, the surface of the circular cutting disc is provided with a plurality of second cutting edges, the plurality of second cutting edges are evenly distributed along the circumferential direction of the circular cutting disc, and the plurality of second cutting edges are all inclined.

[0009] Furthermore, the cutting head extends along the length of the shank.

[0010] Furthermore, the surface of the circular cutter head is provided with a circular hole, and the cutter handle passes through the circular hole and is fixedly connected to the circular cutter head.

[0011] Furthermore, the surface of the knife handle is a smooth surface.

[0012] Furthermore, the handle is made of cemented carbide.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1) This utility model provides a multi-blade cutting tool. By setting a first cutting edge and an inclined second cutting edge, the first cutting edge generates an upward cutting force when processing the workpiece, thus preventing burrs from forming on the inner surface of the processed surface. The second cutting edge generates a side cutting force when processing the workpiece, thus preventing burrs from forming on the side surface of the processed surface. This effectively solves the problem of burrs easily generated in existing straight-blade processing.

[0015] 2) The present invention provides a multi-blade cutting knife. The chip removal grooves distributed spirally on the surface of the first blade can effectively remove waste and debris generated during the cutting process, reduce the clogging of the cutting head, and prevent the accumulated debris from causing the cutting knife to clog easily. Attached Figure Description

[0016] Figure 1 This is a perspective view of a multi-blade cutting tool according to the present invention;

[0017] Figure 2 This is a front view of a multi-blade cutting tool according to this utility model;

[0018] Figure 3This is a side view of a multi-blade cutting tool according to the present invention;

[0019] Figure 4 This is a schematic diagram of the circular cutter head of a multi-blade cutting knife according to the present invention.

[0020] Numbering on the map:

[0021] 1-Handle; 2-Circular cutter head; 3-First cutting edge; 4-Chip removal groove; 5-Second cutting edge; 6-Cutter head; 7-Round hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1-4 As shown, a multi-blade cutting tool includes a handle 1, at least one end of which is provided with a cutting head 6. The surface of the cutting head 6 is provided with a plurality of first cutting edges 3, which are evenly distributed along the circumference of the cutting head 6. A plurality of chip removal grooves 4 are respectively formed on the surface of the first cutting edges 3, which are spirally distributed along the surface of the first cutting edges 3. A circular cutting disc 2 is fixedly disposed on the surface of the handle 1, and a plurality of second cutting edges 5 are provided on the surface of the circular cutting disc 2, which are evenly distributed along the circumference of the circular cutting disc 2 and are all inclined. The cutting head 6 extends along the length of the handle 1, enabling the cutting tool to cut deeper workpieces in a single operation. The surface of the circular cutting disc 2 is provided with circular holes 7. The handle 1 passes through the circular hole 7 and is fixedly connected to the circular cutter head 2. The surface of the handle 1 is smooth, and the smooth design of the handle 1 reduces the resistance when in contact with the workpiece, making the cutting smoother. The handle 1 is made of cemented carbide, which makes the cutting tool more durable and strong, and can maintain stable performance during long-term and high-intensity use. The even distribution and inclined setting of the second cutting edge 5 on the circular cutter head 2 can form a more complex cutting path when the circular cutter head 2 rotates, so that the second cutting edge 5 can cut the side of the workpiece. The chip removal groove 4 can effectively remove the waste and chips generated during the cutting process, reduce the blockage of the cutter head 6, and can quickly remove chips, thereby making the first cutting edge 3 cut faster.

[0024] This embodiment of a multi-blade cutting tool, by setting a first cutting edge 3 and an inclined second cutting edge 5, enables the first cutting edge 3 to generate an upward cutting force when processing the workpiece, thus preventing burrs from forming on the inner surface of the processed surface. The second cutting edge 5 generates a side cutting force when processing the workpiece, thus preventing burrs from forming on the side surface of the processed surface. This effectively solves the problem of burrs easily generated in existing straight-blade processing. The chip removal grooves 4 spirally distributed on the surface of the first cutting edge 3 can effectively remove waste and chips generated during the cutting process, reduce the clogging of the cutting head 6, and prevent the accumulated chips from causing the cutting tool to clog easily.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-blade slitting knife comprising a handle, at least one end of which is provided with a blade head, characterized in that: The surface of the cutter head is provided with a plurality of first cutting edges, which are evenly distributed along the circumference of the cutter head. The surface of the plurality of first cutting edges is provided with a plurality of chip removal grooves, which are spirally distributed along the surface of the first cutting edges. The surface of the cutter handle is fixedly provided with a circular cutter disc, and the surface of the circular cutter disc is provided with a plurality of second cutting edges, which are evenly distributed along the circumference of the circular cutter disc and are all inclined.

2. The multi-blade cutting tool according to claim 1, characterized in that: The cutting head extends along the length of the handle.

3. The multi-blade cutting tool according to claim 1, characterized in that: The circular cutter head has a circular hole on its surface, and the cutter handle passes through the circular hole and is fixedly connected to the circular cutter head.

4. The multi-blade cutting tool according to claim 1, characterized in that: The surface of the knife handle is smooth.

5. A multi-blade cutting tool according to any one of claims 1-4, characterized in that: The handle is made of cemented carbide.

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