CN220515615U - Saw blade with positive and negative teeth combined - Google Patents

Saw blade with positive and negative teeth combined Download PDF

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Publication number
CN220515615U
CN220515615U CN202322287483.5U CN202322287483U CN220515615U CN 220515615 U CN220515615 U CN 220515615U CN 202322287483 U CN202322287483 U CN 202322287483U CN 220515615 U CN220515615 U CN 220515615U
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China
Prior art keywords
positive
teeth
negative
cutting
tooth
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CN202322287483.5U
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Chinese (zh)
Inventor
陈政中
康建清
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Xinding Knives Manufactre Co ltd
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Xinding Knives Manufactre Co ltd
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Priority to CN202322287483.5U priority Critical patent/CN220515615U/en
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Abstract

The utility model provides a saw blade with combined positive and negative teeth, and relates to the technical field of saw blades. This saw bit of positive and negative tooth combination, through the setting of cutting tooth, the angle of positive tooth and negative tooth needs to be decided according to equipment parameter and processing wood species, the cutting efficiency of saw bit is decided to suitable angle, in the high rotational speed cutting process of saw blade, negative tooth external diameter is higher than positive tooth at first, the negative tooth contacts timber earlier, the principle that many fibrous timber can be scraped the fibre by utilizing the negative tooth area, positive tooth assists the cutting, with the tangent plane cutting, the external diameter of negative tooth is great, its cutting mode is the form of scraping in the area, to the wood species that the fibre is more, can play quick with the fibre cutting, the combined cutting of positive and negative tooth also can play the effect of improving the tangent plane.

Description

Saw blade with positive and negative teeth combined
Technical Field
The utility model relates to the technical field of saw blades, in particular to a positive and negative tooth combined saw blade.
Background
Saw blades, also known as blades, are a common cutting tool for cutting a variety of materials by a sawing motion, and are typically made of a hard metal (e.g., steel) or alloy, with serrated teeth edges to cut the material into a desired shape or size.
The same saw blade in the current market adopts the layout of single positive teeth or single negative teeth, and the single positive teeth or negative teeth are relatively single in cutting, so that the effect often cannot achieve the effect of improving the cutting effect of some special materials (such as wood seeds with more cutting fibers in a multi-blade saw) when aiming at some special applications or uses.
Thus we provide a saw blade with a combination of positive and negative teeth.
Disclosure of Invention
The utility model aims to provide a saw blade with positive and negative teeth, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the saw blade with the combination of positive and negative teeth comprises a circular saw blade and cutting teeth, wherein the cutting teeth are arranged on the edge of the circular saw blade;
the cutting teeth comprise positive teeth and negative teeth, the edges of the circular saw blade are welded with the positive teeth, and one side of the positive teeth is provided with the negative teeth.
Preferably, the circular saw blade is provided with 2-6 groups of negative teeth, and the 2-6 groups of negative teeth and positive teeth are distributed in a staggered manner.
Preferably, the outer diameter of the negative teeth is 0.3mm higher than that of the positive teeth, and a single set of the negative teeth is provided with 1-2 teeth.
Preferably, the positive teeth are at an angle of 15 ° -30 °, and the negative teeth are at an angle of-5 ° -15 °.
Compared with the prior art, the utility model has the beneficial effects that:
1. this saw bit of positive and negative tooth combination, through the setting of cutting tooth, in the high rotational speed cutting process of saw blade, at first negative tooth external diameter is higher than the positive tooth, and the negative tooth contacts timber earlier, and the fibrous timber of many can utilize the principle of negative tooth area to scrape the fibre to scrape, and the supplementary cutting of positive tooth is cut the tangent plane.
2. The external diameter of the negative teeth is larger, the cutting mode is in a scraping mode, for wood species with more fibers, the fiber can be rapidly cut, and the combined cutting of the positive teeth and the negative teeth can also play the role of improving the section.
Drawings
FIG. 1 is a schematic view of the external appearance of a saw blade with positive and negative teeth combination according to the present utility model;
FIG. 2 is a schematic diagram of the front view of a saw blade with positive and negative teeth combination according to the present utility model;
FIG. 3 is an enlarged schematic view of the structure of the present utility model at A;
FIG. 4 is a schematic view of a saw blade configuration of the positive and negative tooth combination of the present utility model;
fig. 5 is an enlarged schematic view of the structure of the present utility model at B.
Reference numerals in the drawings: 1. a circular saw blade; 2. cutting teeth; 21. spur teeth; 22. negative teeth.
Detailed Description
Referring to fig. 1-5, the present utility model provides a technical solution: the saw blade with the combination of positive and negative teeth comprises a circular saw blade 1 and cutting teeth 2, wherein the cutting teeth 2 are arranged at the edge of the circular saw blade 1;
the cutting teeth 2 include positive teeth 21 and negative teeth 22, the edge of the circular saw blade 1 is welded with the positive teeth 21, and one side of the positive teeth 21 is provided with the negative teeth 22.
Further, the circular saw blade 1 is provided with 2-6 groups of negative teeth 22, the 2-6 groups of negative teeth 22 and the positive teeth 21 are distributed in a staggered manner, after the fibers are scraped by the negative teeth 22 according to the scraping principle, the positive teeth 21 assist cutting, and the sections are cut uniformly, so that the wood species with more fibers can be rapidly cut, and the combined cutting of the positive teeth and the negative teeth can also play a role in improving the sections.
Further, the outer diameter of the negative teeth 22 is 0.3mm higher than that of the positive teeth 21, and a single group of negative teeth 22 are provided with 1-2 teeth, in the high-rotating-speed cutting process of the saw blade, firstly, the outer diameter of the negative teeth 22 is higher than that of the positive teeth 21, the negative teeth 22 are contacted with wood, and the multi-fiber wood can scrape fibers by utilizing the scraping principle of the negative teeth 22.
Further, the angle of the positive teeth 21 is 15 degrees to 30 degrees, the angle of the negative teeth 22 is-5 degrees to 15 degrees, the angle is determined according to equipment parameters and the type of wood to be processed, and the proper angle determines the cutting efficiency of the saw blade.
Working principle: firstly, a saw blade with a positive tooth and a negative tooth is moved to a working position, firstly, in the high-rotation-speed cutting process of the circular saw blade 1, firstly, the outer diameter of a negative tooth 22 is higher than that of a positive tooth 21, the negative tooth 22 is firstly contacted with wood, the multi-fiber wood can scrape off fibers by utilizing the scraping principle of the negative tooth 22, secondly, the positive tooth 21 is used for assisting in cutting, and the section is cut to be uniform, so that the use process of the saw blade with the positive tooth and the negative tooth is completed.

Claims (4)

1. The utility model provides a saw bit of positive and negative tooth combination, includes saw blade (1) and cutting tooth (2), its characterized in that: the edge of the circular saw blade (1) is provided with cutting teeth (2);
the cutting teeth (2) comprise positive teeth (21) and negative teeth (22), the edges of the circular saw blade (1) are welded with the positive teeth (21), and one side of the positive teeth (21) is provided with the negative teeth (22).
2. Saw blade with a combination of positive and negative teeth according to claim 1, characterized in that the circular saw blade (1) is provided with 2-6 sets of negative teeth (22), and that the 2-6 sets of negative teeth (22) are staggered with positive teeth (21).
3. Saw blade with a combination of positive and negative teeth according to claim 1, characterized in that the negative teeth (22) have an outer diameter 0.3mm higher than the positive teeth (21) and that a single set of the negative teeth (22) is provided with 1-2 teeth.
4. Saw blade with a combination of positive and negative teeth according to claim 1, characterized in that the angle of the positive teeth (21) is 15 ° -30 ° and the angle of the negative teeth (22) is-5 ° -15 °.
CN202322287483.5U 2023-08-24 2023-08-24 Saw blade with positive and negative teeth combined Active CN220515615U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322287483.5U CN220515615U (en) 2023-08-24 2023-08-24 Saw blade with positive and negative teeth combined

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322287483.5U CN220515615U (en) 2023-08-24 2023-08-24 Saw blade with positive and negative teeth combined

Publications (1)

Publication Number Publication Date
CN220515615U true CN220515615U (en) 2024-02-23

Family

ID=89928816

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322287483.5U Active CN220515615U (en) 2023-08-24 2023-08-24 Saw blade with positive and negative teeth combined

Country Status (1)

Country Link
CN (1) CN220515615U (en)

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