CN2250229Y - Saw blade - Google Patents

Abstract

The utility model relates to a saw blade. Both side faces of triangle saw teeth which are arranged in an equal distance on a bottom edge are respectively formed a slope by grinding from an outer side to an inner side; the grinding directions of adjacent two saw teeth are opposite, and the tips of the saw teeth are spread slightly outside; each tip is beveled from a lower side to an upper side from one side of the bevel of the grinding and forms a triangular inclined plane; the position of scheduled separated tooth numbers is provided with a special saw tooth; one side of the special saw tooth is grinded to a slope, and the tip of the saw tooth is beveled to a triangular inclined plane; the other side of the special saw tooth is a flat straight plane; longitudinal fiber can be planed off, and sawdust can be pushed out and eliminated by the flat straight plane. The utility model has the advantages of easy use and labour saving.

Description

Saw blade

The utility model relates to a kind of saw blade, particularly relates to a kind of sawdust that makes and gets rid of easily, can reduce the sawing resistance and use the labour-saving saw blade.

As shown in Figure 1, be used for the woodworking saw blade of sawmilling in the past, mainly be to form most triangle sawtooth of arranging with equidistance 11 at a root edge processing grinding that is saw blade 1 body of strip, as shown in Figure 2, the dual-side of each triangle sawtooth 11 each by outer toward interior grind to cut with suitable angle be processed into an inclined-plane 111,112, and the processing direction of two adjacent sawtooth 11 is just opposite, that is to say, inclined-plane structure by visible each sawtooth among Fig. 2, the back side of the right and left sawtooth that it is adjacent is formed with the dual-side inclined-plane too, and two adjacent sawtooth become forward and reverse correspondence.111,112 intersections, two inclined-planes of each triangle sawtooth 11 form one section crest line 113, and the tip of this triangle sawtooth 11, be worn away with an angle of inclination from lower to upper from a side of this saw blade 1, and form a leg-of-mutton inclined plane 114, make integral body become a kind of both sides and have oblique sword, and the top also is the triangle sawtooth 11 on sharp inclined-plane, and these sawtooth 11 continuous back spans are arranged, and form a felling dog.The advantage of this kind saw is: sharper keen, easy to use, and can be quite smooth by the saw object plane.

Though this kind saw blade 1 has above-mentioned advantage, and be commonly used, after studying for a long period of time, realize, this saw blade 1 is when the horizontal fibers of sawed-off timber, though can effectively and easily use, but when the direction of carrying out sawing with by the saw fibres direction of growth in the same way the time (length sawing just), produce with regard to having some trickle problems: as shown in Figure 3, because sawtooth 11 itself is configured in when cutting off the fiber parallel with the saw plate, be easy to make cut than long fibre be wound in the folded triangle in sawtooth and sawtooth bottom in the residual space 12, and be hampered by on the summit 115 of two sawtooth 11 handing-over and be difficult for breaking away from, this will form sizable resistance, make this sawtooth can not be very smooth and easy when rip cutting, and feel relatively effort, time-consuming.The main cause that produces aforementioned phenomenon is: the sawtooth 11 of this saw blade 1 is that corresponding status is in center line 116 both sides in design, that is to say, the lateral border line 117 of each sawtooth 11 is all identical to the angle theta of 116 of plate body center lines with land tip 118, when the sawtooth 11 with identical angle theta acts on the timber 3, the consistent land of its two rows angle tip 118 is when sawing, will on timber 3, cut out the corresponding parallel straight line cut channel 31 in both sides, 32, and the position is at two cut channels 31,32 residual lumber fibre is then when saw blade 1 pulling, each sawtooth 11 of mat moves back and forth and is taken out of cut channel ditch seam and lumber fibre pushed and come off, if the residual lumber fibre of wherein being pushed has certain-length, its adhesion to each other is still very big, therefore the pulling of saw blade 1 will be hindered, often effort can be felt in the removing pushing.

The purpose of this utility model is providing a kind of saw blade, during sawing, the sawdust in each sawtooth gap can be taken out of more efficiently, has the labour-saving of use effect.

The technical solution of the utility model is:

A kind of saw blade, this saw blade root edge is provided with most the general sawtooth of arranging with equidistance of triangle, the dual-side of each sawtooth forms grinding inclined-plane toward interior with an oblique angle by outer, the grinding direction of adjacent two sawtooth is opposite, and open a little outwardly at the tip of adjacent two sawtooth, splaying from lower to upper from a side on grinding inclined-plane in each tip, and forms a leg-of-mutton inclined plane, it is characterized in that:

Whenever several general sawtooth of being separated by on this saw blade are provided with a special sawtooth, and a side of this special sawtooth forms a grinding inclined-plane, and the most advanced and sophisticated triangle inclination angle of splaying that forms, and the opposite side of this special sawtooth forms a flat face.

Utilize the flat face of this special sawtooth, not only can successfully longitudinal fiber be dug and break, also can successfully sawdust be discharged and get rid of, make the user more convenient laborsaving.

Effect of the present utility model:

As shown in Figure 5, when using, the utility model is owing to be provided with special sawtooth 22 with equidistance in general sawtooth 21 in the past, during sawing equally by general sawtooth 21, timber 4 sawings can be become the straight line cut channel 41 of both sides, 42, and after the sawing residual lumber fibre, but then flat face 223 bottoms of the special sawtooth 22 of mat convexedly stretch in open a little general sawtooth 21 in turn outwards the tip in the residual space 23, easily dig the longitudinal fiber in each sawtooth gap disconnected, and sawdust can be taken out of more efficiently, avoid the phenomenon of blocking, make operation more smooth and easy, more laborsaving in the process of sawing, convenient.

In sum, saw blade of the present utility model can reach and get rid of wood chip, minimizing resistance effect by the setting of special sawtooth really.

Below by most preferred embodiment and accompanying drawing saw blade of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is a kind of outside drawing of saw blade in the past.

Fig. 2 is the partial enlarged drawing of sawtooth on the above-mentioned saw blade in the past.

Fig. 3 is the user mode schematic diagram of above-mentioned saw blade in the past when carrying out sawing.

Fig. 4 is the local arrangements schematic diagram of sawtooth on the saw blade of the utility model preferred embodiment.

Fig. 5 is the user mode schematic diagram of the utility model preferred embodiment.

As shown in Figure 4, identical on saw blade 2 root edges of the utility model preferred embodiment with above-mentioned saw blade in the past, also be provided with most the triangle sawtooth of arranging with equidistance.Be divided into two types in the triangle sawtooth on this saw blade 2; The special sawtooth 22 of most general sawtooth 21 and minority.The lower edge of this saw blade 2 is to be become most continuously arranged triangular shape embryo teeth by punching out earlier, grind punch process more respectively, form 21 on most the general sawtooth that continuous back span arranges, the predetermined sawtooth of being separated by then just forms a special sawtooth 22, for example predetermined numbers of teeth such as five teeth, seven teeth or octadentate.

The dual-side of this general sawtooth 21 forms an inclined-plane 211 toward interior with a pre-fixed inclination grinding by outer respectively, and the grinding direction of adjacent two sawtooth 21 is just opposite, makes the 211 mutual positive and negative ground, inclined-plane on the two adjacent sawtooth 21 corresponding.Bended toward the outside, both sides respectively and opened a little outwardly in the tip of two adjacent sawtooth 21, and each a tip side of 211 bevel grinding a little from lower to upper from the inclined-plane all, and form a leg-of-mutton inclined plane 212.

This special sawtooth 22 is to intert with the predetermined space number of teeth to be arranged in the general sawtooth 21 of permutation, each special sawtooth 22 1 side grinding be whittled into one with identical inclined-plane 221, general sawtooth 21 inclined-planes 211, and also splay and form leg-of-mutton inclined plane 222 in the tip, the grinding of not splaying of the opposite side of this special sawtooth 22, and form a flat face 223 at the bottom of from tooth top to tooth, and pointed end is extended.

After this saw blade 2 is ground and makes, the tip of each general sawtooth 21 is spaced apart oppositely bends, this special sawtooth 22 is then vertical to be extended, each sawtooth is staggered vertically analyses and observe state, as shown in Figure 5, flat face 223 tips of each special sawtooth 22, just hang down and placed for two adjacent interlocking and the central authorities at outside open a little general sawtooth 21 tips, the flat face 223 of this special sawtooth 22 of cause is a not flat face of the oblique sword of tool, similarly be between the sharp sword inclined-plane 211 of two general sawtooth 21, constitute a plane shaving of strength equidirectional with the pulling saw blade, and in small space, have slicing and push the function of sawdust.

Claims (1)

1, a kind of saw blade, this saw blade root edge is provided with most the general sawtooth of arranging with equidistance of triangle, the dual-side of each sawtooth forms grinding inclined-plane toward interior with an oblique angle by outer, the grinding direction of adjacent two sawtooth is opposite, and open a little outwardly at the tip of adjacent two sawtooth, splaying from lower to upper from a side on grinding inclined-plane in each tip, and forms a leg-of-mutton inclined plane, it is characterized in that:

Whenever several general sawtooth of being separated by on this saw blade are provided with a special sawtooth, and a side of this special sawtooth forms a grinding inclined-plane, and the most advanced and sophisticated triangle inclination angle of splaying that forms, and the opposite side of this special sawtooth forms a flat face.

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