A saw blade structure

Abstract

The utility model adopts a kind of saw blade structure, including saw blade body, fixed part, saw blade tooth part, saw blade tooth part includes several groups of tooth units, several groups of tooth units all include left cutting tooth, right cutting tooth, intermediate tooth, when saw blade cutting can pass through left cutting tooth, cut into material left side edge, draw initial kerf contour, open road for subsequent cutting, subsequently intermediate tooth closely follow pinion action, realize accurate fixed saw blade center and prevent deviation, synchronous expansion initial kerf, widen cutting space, right side cutting tooth cut into material right side edge synchronously, and cooperate with intermediate tooth expansion slot action, realize when single draw saw, it can complete simultaneously "left cut-determine center-expand slot-right cut" whole process, also make it can pass through multidimensional cutting action, realize the efficiency cutting of the cut object, avoid the emergence of existing due to "left and right alternate split tooth" single tooth shape can only gradually gnaw cut material, cannot complete multidimensional cutting action synchronously, cause kerf expansion needs repeated draw saw, cause influence cutting efficiency.

Description

Technical Field

[0001] This utility model relates to a saw blade structure. Background Technology

[0002] A saw is a common cutting tool, which usually consists of three parts: a saw blade, a saw frame, and a handle. The saw blade is the core working part of the saw, and its structure is similar to a thin blade with densely packed teeth (mostly made of steel). During cutting operations, the saw blade directly contacts the material to complete the cutting, and it can be replaced as needed (such as a hand saw blade that can be replaced separately after it wears out).

[0003] Traditional saw blades (such as hacksaws, saber saws, or band saws) typically employ an alternating left-right tooth design, where all teeth are arranged sequentially along the blade surface in a "left-right-left-right" pattern. However, this design often presents the following problems during actual cutting: 1. The narrow kerf space created by the alternating tooth shape makes it difficult to quickly remove cutting debris, thus affecting cutting speed; 2. Traditional alternating tooth saw blades are prone to blade misalignment during cutting, resulting in skewed cuts. Summary of the Invention

[0004] In view of the above shortcomings, the present invention provides a saw blade structure that can ensure efficient cutting while also ensuring that the cut is not easily skewed.

[0005] To achieve the above objectives, this utility model employs a saw blade structure, including a saw blade body, a fixing part distributed on the saw blade body, and saw blade teeth distributed on the saw blade body for cutting. The saw blade teeth include several groups of tooth units arranged continuously along the length of the saw blade body. Each group of tooth units includes a left cutting tooth, a right cutting tooth, and an intermediate tooth for cutting centering. All left cutting teeth in the several groups are distributed on the same straight line, all right cutting teeth in the several groups are distributed on the same straight line, and all intermediate teeth in the several groups are distributed on the same straight line. The left cutting tooth is used for cutting the left side of the cut surface of the workpiece, the right cutting tooth is used for cutting the right side of the cut surface of the workpiece, and the middle tooth is used for centering and preventing deviation during the cutting stage of the cut surface of the workpiece, as well as for widening the cut surface.

[0006] The present invention is further configured such that the left cutting tooth is a small tooth arranged on the saw blade body, the middle tooth is a medium tooth arranged on the saw blade body, and the right cutting tooth is a large tooth arranged on the saw blade body.

[0007] The present invention is further configured such that the left cutting teeth, the middle teeth, and the right cutting teeth of each group are arranged in a fixed order of "small teeth, medium teeth, and large teeth" on the saw blade body; the middle teeth, the left cutting teeth, and the right cutting teeth of each group are arranged in a fixed order of "medium teeth, small teeth, and large teeth" on the saw blade body; and the right cutting teeth, the middle teeth, and the left cutting teeth of each group are arranged in a fixed order of "large teeth, medium teeth, and small teeth" on the saw blade body.

[0008] The present invention is further configured such that the first tooth on the saw blade body used for cutting is a left cutting tooth.

[0009] The present invention is further configured such that the left cutting tooth, the middle tooth, and the right cutting tooth are respectively welded to the saw blade body.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: by comprising the saw blade teeth used for cutting with several sets of tooth units, and each tooth unit includes a left cutting tooth, a right cutting tooth, and a middle tooth, the left cutting tooth can be used for cutting the left side of the cut of the workpiece, the right cutting tooth can be used for cutting the right side of the cut of the workpiece, and the middle tooth can be used for centering and preventing deviation and widening the cut when the cut of the workpiece is in the cutting position. In addition, all the left cutting teeth in the several sets are distributed on the same straight line, all the right cutting teeth in the several sets are distributed on the same straight line, and all the middle teeth in the several sets are also distributed on the same straight line. Therefore, when the saw blade involved in this utility model is used for cutting operations, the left cutting tooth, right cutting tooth, and middle tooth on the saw blade body can work together. The left cutting tooth cuts into the left edge of the material, drawing the initial cut outline to pave the way for subsequent cutting. Then, the middle tooth follows the small tooth, on the one hand, accurately fixing the center of the saw blade to prevent deviation, and on the other hand, simultaneously expanding the initial cut and widening the cutting space. The right cutting tooth, along with the left small tooth, cuts into the right edge of the material. By cooperating with the grooving action of the middle tooth, the entire process of "left cutting-centering-grooving-right cutting" can be completed simultaneously in a single sawing motion. This allows the cutting to achieve efficient cutting of the workpiece through multi-dimensional cutting action. At the same time, it avoids the situation similar to existing single tooth shapes with "alternating left and right teeth" that can only gradually cut the material and cannot simultaneously complete multi-dimensional cutting actions, resulting in repeated sawing to enlarge the cut and affecting cutting efficiency. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the saw blade according to an embodiment of the present utility model; Figure 2 yes Figure 1 Enlarged schematic diagram; Figure 3 This is a side view of the saw blade according to an embodiment of the present invention; Figure 4 yes Figure 3 Enlarged schematic diagram; Detailed Implementation

[0012] like Figure 1-4 As shown, a specific embodiment of this utility model is a saw blade structure, including a saw blade body 1, a fixing part 2 distributed on the saw blade body 1, and saw blade teeth distributed on the saw blade body 1 for cutting. The saw blade teeth include several groups of tooth units arranged continuously along the length of the saw blade body 1. Each group of tooth units includes a left cutting tooth 3, a right cutting tooth 5, and an intermediate tooth 4 for cutting centering. All the left cutting teeth 3 in the several groups are distributed on the same straight line, all the right cutting teeth 5 in the several groups are distributed on the same straight line, and all the intermediate teeth 4 in the several groups are distributed on the same straight line. The left cutting tooth 3 is used for cutting the left side of the workpiece, the right cutting tooth 5 is used for cutting the right side of the workpiece, and the middle tooth 4 is used for centering and preventing deviation during the cutting stage of the workpiece, as well as widening the cut.

[0013] By dividing the saw blade teeth used for cutting into several sets of tooth units, each tooth unit includes a left cutting tooth 3, a right cutting tooth 5, and a middle tooth 4. The left cutting tooth 3 can be used to cut the workpiece on the left side of the cut, the right cutting tooth 5 can be used to cut the workpiece on the right side of the cut, and the middle tooth 4 can be used to center and prevent deviation and widen the cut when the cut is in the cutting position. In addition, all the left cutting teeth 3 in the several sets are distributed on the same straight line, all the right cutting teeth 5 in the several sets are distributed on the same straight line, and all the middle teeth 4 in the several sets are also distributed on the same straight line. Therefore, when the saw blade involved in this utility model is used for cutting operations, the left cutting tooth 3, the right cutting tooth 5, and the middle tooth 4 on the saw blade body 1 can work together. The left cutting tooth 3 cuts into the left edge of the material, drawing an initial cut outline to pave the way for subsequent cutting. Then, the middle tooth 4 follows the small tooth's movement, on the one hand, accurately fixing the center of the saw blade to prevent deviation, and on the other hand, simultaneously expanding the initial cut and widening the cutting space. The right cutting tooth, along with the left small tooth, cuts into the right edge of the material simultaneously. By cooperating with the grooving action of the middle tooth 4, the entire process of "left cutting-centering-grooving-right cutting" can be completed simultaneously in a single sawing motion. This allows the cutting to achieve efficient cutting of the workpiece through multi-dimensional cutting action. At the same time, it avoids the situation similar to the existing single tooth shape with "alternating left and right teeth" which can only gradually cut the material and cannot simultaneously complete multi-dimensional cutting actions, resulting in repeated sawing to enlarge the cut and affecting cutting efficiency.

[0014] like Figure 1-4 As shown, the left cutting tooth 3 is a small tooth arranged on the saw blade body 1, the middle tooth 4 is a medium tooth arranged on the saw blade body 1, and the right cutting tooth 5 is a large tooth arranged on the saw blade body 1. This design can further ensure the reliability of multi-dimensional cutting.

[0015] like Figure 2 , 4 As shown, the left cutting teeth 3, the middle teeth 4, and the right cutting teeth 5 of each group are arranged in a fixed order of "small teeth, medium teeth, and large teeth" on the saw blade body 1; the middle teeth 4, the left cutting teeth 3, and the right cutting teeth 5 of each group are arranged in a fixed order of "medium teeth, small teeth, and large teeth" on the saw blade body 1; the right cutting teeth 5, the middle teeth 4, and the left cutting teeth 3 of each group are arranged in a fixed order of "large teeth, medium teeth, and small teeth" on the saw blade body 1. This design can further ensure the reliability of cutting; in addition, in the above scheme, by fixing the "small teeth, medium teeth, and large teeth"... The design scheme of arranging the left cutting teeth 3, the middle teeth 4, and the right cutting teeth 5 on the saw blade body 1 in a fixed order is the preferred scheme for the arrangement stage of the left cutting teeth 3, the middle teeth 4, and the right cutting teeth 5 on the saw blade body 1. When the preferred scheme is used, it can reliably meet the requirements of the whole process of "left cut - centering - grooving - right cut" during a single sawing operation. That is, it ensures the cutting efficiency and avoids the situation that may affect the cutting efficiency if other arrangement sequences are used. Other arrangement sequences are also alternative schemes.

[0016] like Figure 2 , 4As shown, the design of the first tooth used for cutting on the saw blade body 1 is a left cutting tooth 3. This allows the first left cutting tooth 3, or "small tooth", to be used to cut into the left edge of the material first, draw the initial cut outline, and pave the way for subsequent cutting, thus ensuring the efficiency of the cutting process.

[0017] like Figure 2 , 4 As shown, the left cutting tooth 3, the middle tooth 4, and the right cutting tooth 5 are welded to the saw blade body 1 respectively, which can greatly improve the hardness of the "tooth". The preferred material is cemented carbide or stainless steel, which enables the saw blade to stably cut various materials such as steel plates and wood boards.

Claims

1. A saw blade structure, comprising a saw blade body, a fixing portion distributed on the saw blade body, and saw blade teeth distributed on the saw blade body for cutting, characterized in that: The saw blade teeth include several groups of tooth units that are continuously arranged along the length of the saw blade body. Each group of tooth units includes a left cutting tooth, a right cutting tooth, and an intermediate tooth for cutting centering. All left cutting teeth in the several groups are distributed on the same straight line, all right cutting teeth in the several groups are distributed on the same straight line, and all intermediate teeth in the several groups are distributed on the same straight line. The left cutting tooth is used for cutting the left side of the cut surface of the workpiece, the right cutting tooth is used for cutting the right side of the cut surface of the workpiece, and the middle tooth is used for centering and preventing deviation during the cutting stage of the cut surface of the workpiece, as well as for widening the cut surface.

2. The saw blade structure according to claim 1, characterized in that: The left cutting teeth are small teeth arranged on the saw blade body, the middle teeth are medium teeth arranged on the saw blade body, and the right cutting teeth are large teeth arranged on the saw blade body.

3. The saw blade structure according to claim 2, characterized in that: The left cutting teeth, middle teeth, and right cutting teeth of each group are arranged in a fixed order of "small teeth, medium teeth, and large teeth" on the saw blade body.

4. The saw blade structure according to claim 2, characterized in that: The middle teeth, left cutting teeth, and right cutting teeth of each group are arranged in a fixed order of "middle teeth, small teeth, and large teeth" on the saw blade body.

5. The saw blade structure according to claim 2, characterized in that: The right cutting teeth, middle teeth, and left cutting teeth of each group are arranged in a fixed order of "large teeth, middle teeth, and small teeth" on the saw blade body.

6. The saw blade structure according to claim 2, 3, 4 or 5, characterized in that: The first tooth on the saw blade body used for cutting is the left cutting tooth.

7. The saw blade structure according to claim 1, 2, 3, 4 or 5, characterized in that: The left cutting tooth, the middle tooth, and the right cutting tooth are respectively welded onto the saw blade body.

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