CN2608205Y

CN2608205Y - Improved saw blade

Info

Publication number: CN2608205Y
Application number: CN 03201427
Authority: CN
Inventors: 赵世钦
Original assignee: JIUYUN INDUSTRY Co Ltd
Current assignee: JIUYUN INDUSTRY Co Ltd
Priority date: 2003-01-28
Filing date: 2003-01-28
Publication date: 2004-03-31
Anticipated expiration: 2013-01-28

Abstract

The utility model relates a modified saw blade, which comprises of a main body and a plurality of groups of row teeth along the sides of the main body. Each group of row teeth can be divided into a first and a second section that are neighboring to each other. Each of the first and the second section has a plurality of main saw teeth and subsidiary saw teeth. Each of the main saw teeth has a first cutting clearance; each of the subsidiary saw teeth has a second cutting clearance. The teeth spaces are all the same, while the first and the second cutting clearance are not.

Description

The saw blade of improvement

Technical field

The utility model is relevant with saw blade, is meant a kind of saw blade of improvement especially.

Background technology

Press, existing saw blade 10, as shown in Figure 1, include a main body 11, and with respect to the formed plural sawtooth 12 of a side of this main body 11, be that this saw blade 10 is done cutting with respect to the object that is cut saw in a reciprocal manner during use, this moment this object so cutting process and produce most chips, the broken layer of this majority is subjected to the motion of this cutting process to order about and discharged by the chip area 13 of 12 on this sawtooth, so that form a kerf on this object, with covering this action emphatically, this otch is goed deep in this object.

Though this saw blade has the function of cutting saw in the use, (be that all sawtooth on the general saw blade are identical shaped so because of sawtooth itself often has only single shape, difference may only be that sawtooth can slant towards different sides), and some its cutting speed of sawtooth that does not design front clearance angle is just slower, stock-removing efficiency is not high, though and design has the sawtooth cutting speed of front clearance angle very fast but durability is poorer than the sawtooth that does not have front clearance angle, consume is easier to fracture on using, so, all can't take into account the effect of practicality and fly-cutting regardless of above-mentioned any sawtooth.

The utility model content

Supervise in this, main purpose of the present utility model promptly is to provide a kind of saw blade of improvement, and it has can obtain best equalization point in practicality and fly-cutting, and make saw blade of the present utility model outside effect, also take into account the durability of this sawtooth simultaneously with quick cutting.

Edge, for reaching this purpose, the saw blade of a kind of improvement of the present utility model includes a main body; Array is located at the toothrow of this main body side, this is respectively organized toothrow and has one first adjacent section and one second section, this first, second section then is respectively equipped with several head saw teeth and the secondary sawtooth of number, this each head saw tooth has one first angle of relief, this each secondary sawtooth then has one second angle of relief, and this each sawtooth is identical with the tooth pitch of each sawtooth, and this first, second angle of relief is then inequality.

Wherein, the height of this each head saw tooth is less than the height of this each secondary sawtooth.

Wherein, the aspect ratio of the height of this each head saw tooth and this each secondary sawtooth is to be 0.71: 0.73.

Wherein, the angle of this first angle of relief is less than the angle of this second angle of relief.

Wherein, the length of this first section is less than this second section.

Wherein, the length ratio of this first section and this second section is to be 1: 2.5.

Wherein, the radius length of this each main chip area is less than the height of this each head saw tooth, and the height of this each head saw tooth is again less than the spacing between this each head saw tooth.

Wherein, the aspect ratio of the spacing between the radius of this each main chip area and this each head saw tooth and this each head saw tooth is to be 0.37: 1.41: 0.71.

Wherein, the radius length of this each secondary chip area is less than the height of this each secondary sawtooth, and the height of this each secondary sawtooth is again less than the spacing between this each secondary sawtooth.

Wherein, the aspect ratio of the spacing between the radius of this each secondary chip area and this each secondary sawtooth and this each secondary sawtooth is to be 0.33: 1.41: 0.73.

Description of drawings

For further specifying technology contents of the present utility model, below carry out items such as embodiment and accompanying drawing and architectural feature of the present utility model and operation, after being described in more detail in, wherein:

Fig. 1 is the partial side view of existing saw blade.

Fig. 2 is a partial side view of the present utility model.

Fig. 3 is the partial side view of the utility model one toothrow.

Fig. 4 is a sawtooth flank profil schematic diagram of the present utility model.

The specific embodiment

At first, see also shown in Figure 2ly, the saw blade 20 of a kind of improvement of the present utility model includes a main body 22, and array is along the set toothrow 24 of the one side of this main body 22.

Please consult Fig. 3, shown in Figure 4 again, of the present utility model being characterised in that:

This respectively organizes toothrow 24, have one first section A and one second section B, this first section A and this second section B are respectively equipped with several head saw teeth 26 and the secondary sawtooth 28 of number, this first section A and this second section B are according to different length ratios on arranging, be to be 1: 2.5 with regard to the utility model, gap ratio between spacing between this each head saw tooth 26 and this each secondary sawtooth 28 is close, be to be 1: 1 with regard to the utility model, this counts the spread length of head saw tooth 26 and the aspect ratio of this each head saw tooth 26 is 25.4: 0.71 with regard to the utility model, and the spread length of the secondary sawtooth 28 of this number and the aspect ratio of this each secondary sawtooth 28 are 63.5: 0.73 with regard to the utility model; This each head saw tooth 26, has one first addendum angle 261, one first angle of relief 262, one front clearance angle 263 and a rake angle 264, form a main chip area 27 between this each head saw tooth 26, the spacing between the radius of this each main chip area 27 and this each head saw tooth 26 and the aspect ratio of this each head saw tooth 26 are 0.37: 1.41: 0.71 this each secondary sawtooth 28 with regard to the utility model, have one second addendum angle 281 and one second angle of relief 282, form a secondary chip area 29 between this each secondary sawtooth 28, the spacing between the radius of this each secondary chip area 29 and this each secondary sawtooth 28 and the aspect ratio of this each secondary sawtooth 28 are 0.33: 1.41: 0.73 with regard to the utility model.

The use situation of this saw blade below is described: when using these saw blade 20 cutting objects, because the suface friction of object is big, be difficult for the application of force, so after counting the cutting of head saw tooth 26 by this, the otch that is produced can make the action of follow-up cutting make things convenient for the application of force, can renew the mode of in the past covering with the secondary sawtooth 28 of this number and cut with respect to this object this moment on this otch, till this otch reaches the degree of depth of being scheduled to.

After constantly studying, this creator finds, when this saw blade is to be rotated alternately when constituting different section by heteroid sawtooth, cutting effect that produces and saw blade durability are greater than the flank of tooth of single sawtooth, with regard to the utility model, each structure and curvature of this main chip area when having above-mentioned represented data partly of this each head saw tooth, can reach a kind of chip removal efficient height this moment and fireballing cutting effect, this each secondary sawtooth then has a best durability when having above-mentioned data, when this major-minor sawtooth replaces and the time spent, not only can reduce the consume of sawtooth itself, unlikely again reduction cutting speed; The appearance of this saw blade simultaneously has more than and is confined to shown in the utility model, and this saw blade also can or use that need to make band saw shape, bow saw shape or hole saw shape etc. all types of and can not influence that it is functional with the cutting subject matter.

And saw blade 20 structures of this case are being to present the first section A by its sawtooth, second section B is to interleave staggered configuration mode, and this second section B sawtooth separately is to have different angle of reliefs, interconnected two kinds of different sawtooth of angle of relief on this saw blade 20, the user can be fast sawing object effortlessly, and be unlikely to too fast or comprehensive injury sawtooth again, and be able to obtain the equalization point an of the best in operating efficiency and between life tools, and disclosed every dimension scale in this case specification, it is the optimal values that this case creator is obtained after constantly studying and testing, it can make general performance of the present utility model be better than traditional existing saw blade really, and makes this case have progressive and practicality really.

Comprehensive the above, the utility model is by the sawtooth design of different sections, but a kind of both fly-cuttings of user and the good cutting products of durability are provided, and proves that this case on function of use and structure innovation, has its unique distinction, so apply for a patent in accordance with the law.

Claims

1. the saw blade of an improvement is characterized in that, includes:

One main body;

Array is located at the toothrow of this main body side, this is respectively organized toothrow and has one first adjacent section and one second section, this first, second section then is respectively equipped with several head saw teeth and the secondary sawtooth of number, this each head saw tooth has one first angle of relief, this each secondary sawtooth then has one second angle of relief, this each sawtooth is identical with the tooth pitch of each sawtooth, and this first, second angle of relief is then different.

2. according to the saw blade of the described a kind of improvement of claim 1, it is characterized in that wherein, the height of this each head saw tooth is less than the height of this each secondary sawtooth.

3. according to the saw blade of the described a kind of improvement of claim 2, it is characterized in that wherein, the height of this each head saw tooth and the aspect ratio of this each secondary sawtooth are to be 0.71: 0.73.

4. according to the saw blade of the described a kind of improvement of claim 1, it is characterized in that wherein, the angle of this first angle of relief is less than the angle of this second angle of relief.

5. according to the saw blade of the described a kind of improvement of claim 1, it is characterized in that wherein, the length of this first section is less than this second section.

6. according to the saw blade of the described a kind of improvement of claim 5, it is characterized in that wherein, the length ratio of this first section and this second section is to be 1: 2.5.

7. according to the saw blade of the described a kind of improvement of claim 1, it is characterized in that wherein, the radius length of this each main chip area is less than the height of this each head saw tooth, the height of this each head saw tooth is again less than the spacing between this each head saw tooth.

8. according to the saw blade of the described a kind of improvement of claim 7, it is characterized in that wherein, the spacing between the radius of this each main chip area and this each head saw tooth and the aspect ratio of this each head saw tooth are to be 0.37: 1.41: 0.71.

9. according to the saw blade of the described a kind of improvement of claim 1, it is characterized in that wherein, the radius length of this each secondary chip area is less than the height of this each secondary sawtooth, the height of this each secondary sawtooth is again less than the spacing between this each secondary sawtooth.

10. according to the saw blade of the described a kind of improvement of claim 9, it is characterized in that wherein, the spacing between the radius of this each secondary chip area and this each secondary sawtooth and the aspect ratio of this each secondary sawtooth are to be 0.33: 1.41: 0.73.