CN2032111U

CN2032111U - Saw piece for processing wood sawing

Info

Publication number: CN2032111U
Application number: CN 88206830
Authority: CN
Inventors: 林振玉
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-06-09
Filing date: 1988-06-09
Publication date: 1989-02-08

Abstract

The utility model relates to a saw web for sawing wood. As a result of the arrangement and the geometric shape of the sawteeth, an existing saw web has the defects of low sawing efficiency, large vibration and rough sawing surface. The sawteeth of the saw web provided by the utility model are arranged in equal distance in left, middle and right; the main cutting edge is sharpened into sharp edge, and the tool angle of the sawteeth is controlled between 30 DEG-90 DEG. The utility model has the advantages of small sawing resistance, high work efficiency, less investment and low noise.

Description

The saw blade that is used for timber sawing processing

The utility model relates to a kind of improvement of wood sawing machine saw blade, is mainly used in the sawing processing of timber.

The saw blade of public use in the existing wood sawing machine, its geometry is: rake face and the knife face plane that all is rectangle, back, nose angle is a straight angle, the arrangement of sawtooth is " S " type, sawtooth is at work along with timber humidity, hardness and saw blade speed, make the saw blade generation different vibration of weight and noise takes place, coarse by the timber section of sawing, the linearity of saw kerf is difficult for guaranteeing.In order to solve the fineness of sawing face, the someone cancelled the arrangement of the serpentine of sawtooth, and improved the speed of saw blade simultaneously, but had increased the resistance of sawing, and inefficiency, the sawing face of timber are still not bright and clean.

The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and provide that a kind of sawing resistance is little, high efficiency, sawing face are bright and clean, the saw kerf linearity guarantees easily, vibrate little wood sawing machine saw blade.

The goal of the invention that the utility model proposes realizes by following technological means.The utility model is according to the cutting principle of timber sawing, geometry to saw blade is improved, the sawtooth of saw blade by a left side, in, right, in or the two kinds of structural arrangement in left, center, right, the rake face sharpening of sawtooth becomes a sharp sword tooth, nose angle is to 30～65 ° of left and right tooth values, middle tooth value 45～90.Because rake face is the sharp edge limit, during sawing, vibration and resistance are less, and during high-speed cutting, the middle tooth of coping saw blade in saw kerf, is easier to guarantee the linearity of saw kerf all the time.

Description of drawings:

Fig. 1 is the utility model circular saw bit axial view.

Fig. 2 be circular saw bit a sawtooth left side, in, right, middle arrangement schematic diagram.

Fig. 3 is that schematic diagram is arranged in the sawtooth left, center, right of circular saw bit.

Fig. 4 is the schematic diagram of the utility model band saw blade.

The utility model will be described in further detail in conjunction with the accompanying drawings.

As Fig. 1～circular saw bit schematic diagram shown in Figure 3, according to the design principle of cutter and the material behavior of timber, the

sawtooth

2,3,4 of saw blade 1 arrange main adopt a left side, in, right, in or the left, center, right broached-tooth design arrange, also can adopt a left side, in, in, right or structural arrangement such as a left side, the right side, left, center, right, no matter adopt which kind of structural arrangement all to need the left, center, right tooth alternately.Middle sawtooth 3 is mainly used in cut-out, and left tooth 2 and right tooth 4 are mainly opened saw kerf, and its effect is equivalent to face cutter.Consider the left, center, right structural arrangement of sawtooth, therefore the sawtooth number is generally even number or three multiple, and the rake face sharpening of

sawtooth

2,3,4 becomes sharp sword limit 5, the cutting resistance during with minimizing sawtooth sawing timber, the back knife face plane that still is rectangle is to guarantee the intensity of sawtooth.The anterior angle γ of sawtooth.8 °～12 ° of values; Relief angle α.Obtain 20 °～30 °, nose angle

30 °～65 ° of γ values

45 °～90 ° of γ ', wherein best angle

γ is 45 °,

γ ' is 50 °, according to the left, center, right of

sawtooth

2,3,4, in or the arrangement of left, center, right, the middle tooth 3 of saw blade 1 (N=2800 rev/min) when high speed rotating can be considered and is in all the time in the saw kerf, also can play guide effect simultaneously at cut-out timber, this is useful to the linearity that improves saw kerf.Because operator face sharpening is the sharp edge limit, so during sawing timber, cutting resistance and vibration all reduce to some extent.Owing to may run into metallic foreign body during the timber sawing.Therefore the material of saw blade is considered to adopt quality carbon steel or high-speed steel, carries out necessary heat treatment simultaneously.

As shown in Figure 4 be the saw blade of band saw bed, the sawtooth geometry of this band saw blade 6 and related parameter is arranged and circular saw bit 1 is basic identical is not repeated.

The utility model compared with prior art has following advantages: the sawing resistance is little, and high efficiency, sawing face are bright and clean, the linearity of timber processing guarantees easily and the vibration of timber processing is little, are a kind of efficient saw blades that is easy to promote the use of.

Claims

1, a kind of saw blade that is used for timber sawing processing, sawtooth is sharp triangle, the angle of wedge less than 90 °, pitch between sawtooth equates, it is characterized in that: saw blade 1 and 6 sawtooth, middle tooth 3 and left and right tooth 2,4 are alternately, and the rake face of sawtooth 2,3,4 is a sharp sword limit 5,30 °～65 ° of point of a knife ∈ γ values, 45 °～90 ° of ∈ γ ' values.

2, saw blade as claimed in claim 1 is characterized in that: sawtooth 2,3,4 by a left side, in, right, in or the two kinds of structural arrangement in left, center, right.

3, saw blade as claimed in claim 1 is characterized in that: the anterior angle α of saw blade 1 and 6 sawtooth 2,3,4.8 °～12 ° of values, relief angle α ₀20 °～30 ° of values.

4, saw blade as claimed in claim 1 is characterized in that: the saw blade 1 and 6 the number of teeth are even number or three multiple.