Woodworking tool with disposable blade
Disposable blade woodworking tools solve the problems of high replacement costs and easy breakage of integral blades through detachable blade design and high-pressure gas cooling system, realizing low-cost blade replacement and efficient use of the cutting edge.
Patent Information
- Application Number
- CN202520058314.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing integral metal woodworking milling cutters require complete replacement when the cutting edge is damaged during use, which is costly and the cutting edge is prone to chipping, making it difficult to effectively reduce usage costs.
Design a disposable blade woodworking knife with first and second blades fixed by fixing bolts. The blades can be replaced individually and have a regular square structure. If any corner is damaged, they can be disassembled and reassembled. Combined with a high-pressure gas cooling system, the blade life is extended.
It enables individual blade replacement, reducing replacement costs, and improves tool life and stability through a square design and high-pressure gas cooling.
Smart Images

Figure CN223820712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of woodworking tool technology, specifically a disposable blade woodworking tool. Background Technology
[0002] Most woodworking milling cutters used in wood processing are made of metal, primarily tool steel, alloy steel, and cemented carbide. Cemented carbide offers advantages in hardness and rigidity, effectively improving production efficiency and tool life. Compared to metal cutting milling cutters, they have larger rake and clearance angles to achieve a sharp cutting edge and reduce cutting resistance, but this also makes the cutting edge prone to chipping. Currently, most woodworking milling cutters are solid metal cutters; when the cutting edge is damaged, the entire cutter body needs to be replaced, resulting in high costs. Therefore, an improved, disposable insert woodworking tool is needed to address this issue. Summary of the Invention
[0003] The purpose of this utility model is to provide a disposable blade woodworking tool to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a disposable blade woodworking knife, comprising a blade body, wherein a blade mechanism is provided at one end of the blade body, the blade mechanism comprising a first blade, a second blade, a first fixing bolt, and a second fixing bolt, wherein the first blade is provided on the top and bottom of the blade body, and the second blade is provided on both sides of the blade body surface, wherein the first blade and the blade body are connected by a first fixing bolt through a thread, and the second blade and the blade body are connected by a second fixing bolt through a thread.
[0005] Preferably, a chip removal groove is provided on the surface of the cutter body on one side of the second blade, and a chip removal groove is provided on the top of the cutter body, so that chip removal is smoother during the machining process and the overall cutting of the tool is more stable.
[0006] Preferably, a handle is fixedly provided on one side of the blade body. The handle allows the device to be easily connected to mechanical equipment. The mechanical equipment can drive the handle, blade body, first blade, and second blade to rotate at high speed, thereby enabling the drilling operation on the wood.
[0007] Preferably, the blade body has a through hole in the middle, and the inner middle of the blade body and handle is hollow. This can effectively prevent sawdust from accumulating at the top during drilling. When cutting, high-pressure gas can be passed through the inner middle of the blade body and handle and then blown out from the through hole as needed. This not only blows out the sawdust in the hole, but also cools the entire blade body and improves the cutting life of the blade.
[0008] Preferably, the first blade is a chamfered square, and the second blade is a square. Since both the first and second blades are square, if any corner is damaged during processing, it can be disassembled and reassembled to use other intact processing corners. When the first blade cuts and drills, it is vertically downward. This chamfer design can prevent breakage caused by collisions at sharp corners.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] 1. The first blade and the second blade of this utility model are fixed by the first fixing bolt and the second fixing bolt. In this way, if either blade is damaged, it can be replaced individually. The blade can be replaced according to its usage, which can reduce costs. When replacing, there is no need to remove the blade body fixed to the mechanical equipment. The blade can be replaced directly, which can greatly reduce the cost of use.
[0011] 2. When using this utility model, both the first and second blades are regular quadrilaterals. If any corner is damaged during processing, it can be disassembled and reassembled to use other intact processing corners.
[0012] 3. When cutting, this utility model can pass high-pressure gas through the middle of the inner side of the blade body and the handle as needed and then blow it out from the through hole. This not only blows out the wood chips in the hole, but also cools the entire blade body and improves the cutting life of the blade. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of a disposable blade woodworking tool according to the present invention;
[0014] Figure 2 This is a side view of a disposable blade woodworking tool according to the present invention;
[0015] Figure 3 This is an overall structural view of the first and second blades in a disposable woodworking tool according to the present invention.
[0016] In the diagram: 1. Tool body; 2. First blade; 3. Second blade; 4. First fixing bolt; 5. Second fixing bolt; 6. Chip removal groove; 7. Tool holder; 8. Through hole. Detailed Implementation
[0017] 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.
[0018] Please see Figure 1-3 This utility model provides a technical solution: a disposable blade woodworking knife, including a blade body 1, with a blade mechanism at one end of the blade body 1. The blade mechanism includes a first blade 2, a second blade 3, a first fixing bolt 4, and a second fixing bolt 5. The first blade 2 is arranged on the top and bottom of the blade body 1, and the second blade 3 is arranged on both sides of the surface of the blade body 1. The first fixing bolt 4 is threaded between the first blade 2 and the blade body 1, and the second fixing bolt 5 is threaded between the second blade 3 and the blade body 1.
[0019] The surface of the cutter body 1 is provided with a chip removal groove 6 on one side of the second blade 3, and the top of the cutter body 1 is provided with a chip removal groove 6, so that chip removal is smoother during the machining process and the overall cutting of the tool is more stable.
[0020] A handle 7 is fixedly provided on one side of the blade body 1. The handle 7 allows the device to be easily connected to mechanical equipment. The mechanical equipment can drive the handle 7, blade body 1, first blade 2, and second blade 3 to rotate at high speed, thereby enabling the drilling operation on the wood.
[0021] The blade body 1 has a through hole 8 in the middle. The blade body 1 and the handle 7 are hollow in the middle of their inner sides. This can effectively prevent the accumulation of wood chips at the top when drilling. When cutting, high-pressure gas can be passed through the middle of the inner sides of the blade body 1 and the handle 7 and then blown out from the through hole 8 as needed. This can not only blow out the wood chips in the holes, but also cool the blade body 1 as a whole and improve the cutting life of the blade.
[0022] The first blade 2 is a chamfered square, and the second blade 3 is a square. Since both the first blade 2 and the second blade 3 are square, if any corner is damaged during processing, it can be disassembled and reassembled to use other intact processing corners. When the first blade 2 cuts and drills, it is vertically downward. This chamfer design can prevent breakage caused by collision at the sharp corner.
[0023] The first blade 2 and the second blade 3 of this device are fixed by the first fixing bolt 4 and the second fixing bolt 5. In this way, if any blade is damaged, it can be replaced individually. The blade can be replaced according to its usage, which can reduce costs. When replacing the blade, there is no need to remove the blade body 1 fixed to the mechanical equipment. The blade can be replaced directly, which can greatly reduce the operating cost.
[0024] Working principle: When using this device, as follows... Figure 2As shown, this device can rotate vertically downwards to open holes in wood. When opening holes, the second blade 3 first contacts the wood and opens holes by rotating. Then, pressing the blade body 1 will gradually make the hole opened by the blade body 1 deeper and deeper. At this time, as the opening progresses, the second blade 3 will also participate in the opening work. In this way, the first blade 2 and the second blade 3 can gradually open holes in the wood.
[0025] Meanwhile, when this device is in use, both the first blade 2 and the second blade 3 are regular quadrilaterals. If any corner is damaged during processing, it can be disassembled and reassembled to use other intact processing corners.
[0026] It should be noted that, in this document, relational 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 such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A disposable blade woodworking tool, comprising a blade body (1), characterized in that: The blade body (1) is provided with a blade mechanism at one end. The blade mechanism includes a first blade (2), a second blade (3), a first fixing bolt (4), and a second fixing bolt (5). The first blade (2) is provided on the top and bottom of the blade body (1), and the second blade (3) is provided on both sides of the surface of the blade body (1). The first fixing bolt (4) is provided between the first blade (2) and the blade body (1) through a thread, and the second fixing bolt (5) is provided between the second blade (3) and the blade body (1) through a thread.
2. A disposable blade woodworking tool according to claim 1, characterized in that: The surface of the blade body (1) has a chip removal groove (6) on one side of the second blade (3).
3. A disposable blade woodworking tool according to claim 1, characterized in that: A handle (7) is fixedly provided on one side of the blade body (1).
4. A disposable blade woodworking tool according to claim 1, characterized in that: The blade body (1) has a through hole (8) in the middle, and the blade body (1) and the handle (7) are hollow in the middle of the inner side.
5. A disposable blade woodworking tool according to claim 1, characterized in that: The first blade (2) is a chamfered square, and the second blade (3) is a square.