CN201154502Y

CN201154502Y - Circular blade for processing wood or other materials

Info

Publication number: CN201154502Y
Application number: CNU2007201253116U
Authority: CN
Inventors: 詹保罗·波佐
Original assignee: CASALS HERRAMIENTAS ELECTRICALS SL
Current assignee: Scintilla AG
Priority date: 2007-02-16
Filing date: 2007-07-26
Publication date: 2008-11-26
Anticipated expiration: 2017-07-26
Also published as: ITUD20070033A1; WO2008098626A1

Abstract

The utility model discloses a circular knife (10) used for processing wood or other materials. The circular knife comprises a almost flat disc-shaped main body (12) and is provided with a central area in which a hole (15) can be arranged, a peripheral area (14) in which a plurality of cutting components (13) are arranged so as to implement the processing, and an annular central area which is arranged between the central area and the peripheral area (14); wherein one or more molding through grooves (17) are made and arranged in the annular central area, and the width (L) of each through groove (17) is more than or equal to 1.0mm, not more than 3.0mm.

Description

The circular knife that is used for converted timber or other material

Technical field

The utility model relates to a kind of circular knife or saw blade, is used for the substitution material of converted timber mechanically or timber, and such as particieboard, MDF (medium density fibre board (MDF)), glued board or other material, for example plastics or metal material comprise ferrous metal and non-ferrous metal.

Background technology

The circular knife that is used to cut timber or other material is well-known, and each circular knife is made up of flat video disc shape steel main body, and this steel main body comprises near a plurality of cutting elements that are fixed in its outer ring crown, so-called sawtooth.Sawtooth is made by carbide alloy (HW) usually, and can cut by removing fragment from object to be cut or that cut quarter.

From industrial experience, have recognized that, in the mechanical object process of using such as essential circular knife that rotates or saw blade, when converted timber and other material, contact area between this mechanical object and the workpiece processed and the vibration that is produced must remain on minimum degree.

Vibration is remained on the suface processing quality that minimum degree helps to improve institute's processing work, also reduce the acoustic pressure that is produced simultaneously.

Minimum for these vibrations are reduced to, known is the groove of making series of formed in the zone line of the flat body of circular knife, and it for example forms similar coil shape or in a zigzag.In use, these grooves can either absorb or reduce vibration, also can reduce the noise of circular knife.

It is also known that, absorb for strengthening the ability of vibration, and in use noise is lower to make blade, at forming tank internal configurations sound-absorbing material, that is, have the plastics or the elastomeric material of shock-absorbing properties.

The applicant described a kind of being used in the inner novelty method of optimizing the sound-absorbing material configuration of described forming tank in the industrial invention application UD2007A000030 of application on February 13rd, 2007.

Up to now, the antivibration groove of manufacturing has nominal width less than 0.3mm on circular knife.Especially, in italian patent IT-B-1.262.130, the width that is provided advantageously less than 0.5mm, and is preferably 0.3mm less than 1mm.

But because width is limited, existing groove has shortcoming, and promptly they make and are difficult to insert sound-absorbing material.Moreover because the amount of attractive material in the insertion groove is less relatively, so antivibration and attraction effect are relatively low.

A purpose of the present utility model is to make a kind of circular knife, and it in use almost completely eliminates vibration, especially resonance, and the result is the cut quality and the life-span of having improved blade.

Another purpose of the present utility model is to make a kind of circular knife, and it also is at least greatly to reduce the acoustic pressure that is produced because of the blade rotation if do not eliminate fully in use.

The applicant has imagined, has tested and implemented the utility model that overcomes the prior art shortcoming, and has obtained these and other purpose and advantage.

The utility model content

Feature of the present utility model is illustrated in independent claims, and dependent claims has been described the modification of further feature of the present utility model or this main inventive point simultaneously.

Comprise flat substantially video disc shape main body according to the circular knife that is used for converted timber or other material of the present utility model, have: central area can be provided with the hole at central area; The periphery district disposes a plurality of cutting elements in it, to carry out this processing; With annular mesozone, it is disposed between described central area and the described periphery district, makes one or more moulding grooves in described annular mesozone.

According to above-mentioned purpose, the width of each described groove is more than or equal to 1.0mm, and is no more than 3.0mm.Advantageously, described width between 1.0mm between the 2.0mm.

According to the experiment that the applicant did, found to allow that according to groove of the present utility model portion within it holds the sound-absorbing material of bigger quantity that sound-absorbing material is injected in the vane body.

Moreover, compare less than the known workaround of 1mm with the nominal width of groove, found that groove of the present utility model can fill more completely.

In fact, the groove with width between 1mm and 3mm can hold the plastic material of bigger quantity, and it produces bigger vibration damping effect in the cutting step process, and reduces sound pressure level.

In foundation circular knife of the present utility model, the grade of acoustic pressure is markedly inferior to has the acoustic pressure of 0.2mm to the common groove of 0.3mm width.

With the method, have the long durability period according to circular knife of the present utility model, and can obtain softer cutting action.The reduction of the life-span of blade because of the harmonics transmitted in the material improves.In the cutting action process, blade passes to the workpiece of just processing with energy, and this makes blade lose its poised state.

In case circular knife is not in its proper motion state, will produce unwanted harmonics, but because the width of moulding groove increases and the increase of the sound-absorbing material quantity inserted in it, unwanted harmonics is just weakened by the moulding groove.Lower vibration values has not only prolonged the life-span of blade, and has increased the quality of the cutting fineness that is produced.

Description of drawings

With reference to accompanying drawing, from aftermentioned, will be appreciated that these and other feature of the present utility model as the preferred form of the embodiment of non-limiting example, wherein:

Fig. 1 is the side view according to circular knife of the present utility model;

Fig. 2 is the sectional view that II-II looked from Fig. 1.

The specific embodiment

Referring to Fig. 1, the flat body 12 and a plurality of cutting blade 13 that comprise basic video disc shape according to the circular knife 10 that is used for converted timber or other material of the present utility model, cutting blade 13 is disposed in the periphery district 14 of flat main body 12, and can realize cutting when flat main body 12 rotated with the cutting speed of determining.

Flat main body 12 is formed from steel, and comprises: axial hole 15, connect with axle to allow instrument 10, and it is a known type and not shown in the accompanying drawings; A plurality ofly be roughly eiloid groove 17, it is skew angularly mutually, therefore be manufactured in the annular mesozone between periphery district 14 and the axial hole 15, and can absorb the vibration that is produced in the normal cutting operation process, and make that cutting is more accurate, noise is lower.

According to characteristic feature of the present utility model, the width L (Fig. 2) of each groove 17 is more than or equal to 1.0mm, and is no more than 3.0mm.Width L advantageously between 1.0mm between the 2.0mm.

Groove 17 is filled with the packing material 20 with sound absorption function, polymer type for example, and it is with complete filling and realize that the mode that further is absorbed in the vibration that is produced in the normal cutting operation process is configured in the groove 17.

Advantageously, groove 17 utilizes laser technology to make.

Clearly be, do not breaking away under field of the present utility model and the scope situation, can make amendment and/or add parts aforesaid circular knife 10.

For example, in field of the present utility model, can provide groove 17 with linear, shaped form or other shape relevant with coil shape shown in Figure 1.

Also clearly be; though the utility model is described with reference to concrete example; but those skilled in the art should realize having a lot of other equivalents of circular knife feature illustrated in the aftermentioned claim, that be used for converted timber or other material, so within its protection domain that all falls into the utility model and limited.

Claims

1. circular knife that is used for converted timber or other material, comprise flat substantially video disc shape main body (12), and have: central area is provided with hole (15) in described central area; Periphery district (14) disposes a plurality of cutting elements (13) in it, to carry out processing; With annular mesozone, it is disposed between described central area and the described periphery district (14), makes one or more moulding grooves (17) in described annular mesozone, it is characterized in that, the width (L) of each described groove (17) is more than or equal to 1.0mm, and is no more than 3.0mm.

2. circular knife as claimed in claim 1 is characterized in that, described width (L) between 1.0mm between the 2.0mm.

3. circular knife as claimed in claim 1 or 2 is characterized in that, described groove (17) is filled with the sound-absorbing material (20) of polymer type.

4. each described circular knife in the claim as described above is characterized in that described groove (17) utilizes laser technology to make.