CN218283993U

CN218283993U - Saw blade

Info

Publication number: CN218283993U
Application number: CN202221711298.3U
Authority: CN
Inventors: 宋延峰; 毛龙斌
Original assignee: Zhejiang Ruilun Precision Technology Co ltd
Current assignee: Zhejiang Ruilun Precision Technology Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2023-01-13
Anticipated expiration: 2032-07-04

Abstract

The utility model discloses a saw blade, which comprises a saw blade body, wherein saw tooth groups are uniformly distributed on the saw blade body, each saw tooth group comprises at least one first tooth for keeping saw paths stable, at least one second tooth for expanding the saw paths and at least one third tooth for expanding the saw paths; the saw path width of the first teeth of each saw tooth group on the saw blade body is larger than or equal to the saw blade thickness, the saw path width of the second teeth of each saw tooth group on the saw blade body is larger than the saw path width of the first teeth, and the saw path width of the third teeth of each saw tooth group on the saw blade body is larger than the saw path width of the second teeth. The first teeth are used as the longest saw teeth, the saw path is narrower relative to the second teeth and the third teeth, the saw path can rapidly enter a cutting material, and the second teeth and the third teeth further expand the saw path to finally meet the requirement of cutting the material. The utility model discloses the structure is through being further subdivided into the first tooth that advances the cutting with sawtooth, saw way, and the second of extension saw way, third tooth can effectively prolong the saw bit life-span, improve high-speed cutting speed.

Description

Saw blade

Technical Field

The utility model relates to a saw bit, especially a high-speed saw bit that stability is good.

Background

The saw blade is used for cutting wood, plastic artificial boards, and materials of metal or nonmetal materials. The conventional saw blade generally includes a blade body, and saw teeth disposed on the circumference of the blade body, and generally, the length of the saw teeth and the saw path of the saw teeth are uniform. When cutting materials, all teeth have the same function and are used for feeding, cutting and expanding saw path cutting, the front resistance and the lateral expanding saw path force which need to be borne by each tooth are more in stress direction, and the blade is easy to jump during high-speed cutting. The existing saw blade structure is not beneficial to high-speed and quick cutting of saw teeth.

Disclosure of Invention

The utility model provides a saw blade which has simple structure and can be relatively stable in the cutting process, and solves the problems existing in the use of the prior art.

The utility model provides a technical scheme who has the problem is: a saw blade comprises a saw blade body, wherein a connecting hole is formed in the saw blade body, as an improvement, saw tooth groups are uniformly distributed on the saw blade body, each saw tooth group comprises at least one first tooth for keeping a saw path stable, at least one second tooth for expanding the saw path and at least one third tooth for expanding the saw path, the saw path width of the first tooth of each saw tooth group on the saw blade body is more than or equal to the saw blade thickness, the saw path width of the second tooth of each saw tooth group on the saw blade body is more than the saw path width of the first tooth, and the saw path width of the third tooth of each saw tooth group on the saw blade body is more than the saw path width of the second tooth; the first tooth protrudes out of the second tooth, and the second tooth protrudes out of the third tooth.

As a further improvement, the saw teeth group on the saw blade and all the teeth of the saw teeth group are uniformly arranged on the circumference of the saw blade body.

As a further improvement, each sawtooth group sequentially comprises a first tooth, a second tooth and a third tooth.

As a further improvement, the saw blade body is evenly provided with at least two side edges on both sides.

As a further improvement, the saw path width of the first teeth is larger than 0.01-0.02mm of the thickness of the saw blade

As a further improvement, the first tooth, the second tooth or/and the third tooth comprise a tooth holder and a cutter head arranged on the tooth holder.

As a further improvement, the tooth holder of the second tooth or/and the third tooth is provided with an inclined surface for obliquely mounting the cutter head, and the inclined surface and the corresponding cutter head keep the inclined direction of the saw path to be different.

Compared with the prior art, the utility model, the saw blade body is evenly provided with the saw tooth groups, each saw tooth group comprises at least one first tooth for keeping the saw path stable, at least one second tooth for expanding the saw path and at least one third tooth for expanding the saw path, the first tooth protrudes out of the second tooth, and the second tooth protrudes out of the third tooth; the saw path width of the first teeth of each saw tooth group on the saw blade body is more than or equal to the saw blade thickness, the saw path width of the second teeth of each saw tooth group on the saw blade body is more than the saw path width of the first teeth, the saw path width of the third teeth of each saw tooth group on the saw blade body is larger than that of the second teeth. The saw path of the first tooth is slightly larger than or equal to the thickness of a saw blade, so that the saw path of the first tooth is relatively narrow, the material cutting effect is good, the saw path is easy to keep stable, the saw path deflection can be prevented, the first tooth mainly bears a single centripetal force, the saw path of the first tooth is gradually expanded by the second tooth, and the saw path of the second tooth is further expanded by the third tooth, so that the requirement for cutting the material is met finally.

And the force of the second and third teeth for cutting forward is relatively small, the saw teeth are mainly used for bearing the left and right forces for expanding the saw path, the borne centripetal force is small, the large stress which is frequently borne in multiple directions is reduced as much as possible, the fatigue of the saw teeth is reduced, and the saw teeth are beneficial to prolonging the service life of the saw teeth.

The utility model discloses the structure is through being further subdivided into the first tooth that advances the cutting with sawtooth, saw way, and the second of extension saw way, third tooth can effectively prolong the saw bit life-span, improve high-speed cutting speed. The utility model discloses simple structure can be particularly adapted to high-speed saw bit.

Drawings

Fig. 1 is a front view of the saw blade of the present invention.

Fig. 2 is an enlarged schematic view at a of fig. 1.

Fig. 3 is a right side view of the saw tooth group of fig. 2.

Detailed Description

Referring to fig. 1 to 3, the saw blade of the present embodiment includes a blade body 1, and the blade body 1 is provided with a coupling hole 10 for coupling with a driving shaft. Saw tooth groups 3 are uniformly distributed on the saw blade body 1, each saw tooth group 3 comprises at least one first tooth 4 for keeping a saw path stable, at least one second tooth 5 for expanding the saw path and at least one third tooth 6 for expanding the saw path, the saw path width of the first tooth 4 of each saw tooth group 3 on the saw blade body 1 is more than or equal to the saw blade thickness, the saw path width of the second tooth 5 of each saw tooth group 3 on the saw blade body 1 is more than the saw path width of the first tooth 4, and the saw path width of the third tooth 6 of each saw tooth group 3 on the saw blade body 1 is more than the saw path width of the second tooth 5; referring to fig. 2, dotted

lines

1a, 1b, 1c are base lines concentric with the saw blade, and the first tooth 4 protrudes from the second tooth 5, and the second tooth 5 protrudes from the third tooth 6. The kerf width of the third tooth 6 can be equal to the kerf of an existing blade cutting the same material.

The first tooth 4, the second tooth 5 or/and the third tooth 6 comprise a tooth holder 11 and a cutter head 2 arranged on the tooth holder 11.

The first tooth 4 is the longest saw tooth, the saw path is narrower relative to the second tooth and the third tooth, which is beneficial to fast cutting into the cutting material, because the saw path of the first tooth 4 can be slightly larger than or equal to the thickness of the saw blade, the saw path of the first tooth 4 is narrower, the cutting material effect is good, the saw path is easy to keep stable, the saw path deflection can be prevented, the first tooth 4 mainly bears single centripetal force, the second tooth 5 gradually expands the saw path of the first tooth 4, and the third tooth 6 further expands the saw path of the second tooth, finally, the requirement of cutting the material is met. The force for forward cutting of the second and third teeth is relatively small, and the saw blade is mainly used for bearing the left and right forces for expanding the saw path, so that the force can be decomposed through the inclined plane when the saw teeth are designed, the left and right forces can be decomposed to the centripetal force of the saw blade more, the service life of the saw blade can be prolonged, and the fatigue of the saw teeth of the saw blade can be reduced. Referring to fig. 3, the tooth holder 11 of the second tooth 5 or/and the third tooth 6 is provided with an inclined surface 7 for obliquely mounting the cutting head 2, and the inclined surface 7 and the corresponding cutting head 2 are different in inclination angle direction for keeping the saw path inclined. If the corresponding second tooth 5 of the saw path is inclined towards the left, the inclination angle formed by the tooth inclined towards the left and the horizontal plane is left, and the inclination angle formed by the inclined plane on the tooth seat 11 for mounting the cutter head 2 of the second tooth 5 and the horizontal plane is right, the inclined plane 7 can resolve the right reaction force born by the second tooth 5 into the centripetal direction, so that the left and right stress of the cutter tooth is reduced as much as possible. The cutter teeth can be effectively prevented from being cracked from the tooth holder 11 due to the left and right stress of the saw path in the cutting process. The arrangement of the inclined surface 7 is particularly suitable for a blade structure of the welding head 2.

The saw teeth group 3 on the saw blade and all the teeth of the saw teeth group 3 are uniformly arranged on the circumference of the saw blade body 1.

A first tooth 4, a second tooth 5 and a third tooth 6 may be arranged in any order, and in this embodiment, each of the saw tooth groups 3 includes a first tooth 4, a second tooth 5 and a third tooth 6 in sequence.

The saw blade body 1 is provided with at least two side blades 12 on both sides.

The saw path width of the first teeth 4 is larger than the thickness of the saw blade by 0.01-0.02mm.

Claims

1. The utility model provides a saw blade, includes the saw blade body, the saw blade body on be equipped with connecting hole, its characterized in that: saw tooth groups are uniformly distributed on the saw blade body, each saw tooth group comprises at least one first tooth for keeping saw paths stable, at least one second tooth for expanding the saw paths and at least one third tooth for expanding the saw paths, the saw path width of the first tooth of each saw tooth group on the saw blade body is more than or equal to the saw blade thickness, the saw path width of the second tooth of each saw tooth group on the saw blade body is more than the saw path width of the first tooth, and the saw path width of the third tooth of each saw tooth group on the saw blade body is more than the saw path width of the second tooth; the first tooth protrudes out of the second tooth, and the second tooth protrudes out of the third tooth.

2. The saw blade according to claim 1, wherein: the saw blade is characterized in that the saw tooth group on the saw blade and all teeth of the saw tooth group are uniformly arranged on the circumference of the saw blade body.

3. The saw blade according to claim 1, wherein: each sawtooth group comprises a first tooth, a second tooth and a third tooth in sequence.

4. The saw blade according to claim 1, wherein: the saw blade body is provided with at least two side blades on both sides.

5. The saw blade according to claim 1, wherein: the saw path width of the first teeth is larger than 0.01-0.02mm of the thickness of the saw blade.

6. The saw blade of claim 1, wherein: the first tooth, the second tooth or/and the third tooth comprise a tooth holder and a cutter head arranged on the tooth holder.

7. The saw blade of claim 6, wherein: the tooth holders of the second teeth or/and the third teeth are provided with inclined planes for obliquely mounting the cutter heads, and the inclined angle directions of the inclined planes and the corresponding cutter heads for keeping the saw path inclined are different.