CN102211230A - Saw bit capable of bidirectionally sawing - Google Patents

Saw bit capable of bidirectionally sawing Download PDF

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Publication number
CN102211230A
CN102211230A CN 201010141817 CN201010141817A CN102211230A CN 102211230 A CN102211230 A CN 102211230A CN 201010141817 CN201010141817 CN 201010141817 CN 201010141817 A CN201010141817 A CN 201010141817A CN 102211230 A CN102211230 A CN 102211230A
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China
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saw
saw blade
sawing
sawtooth
blade
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CN 201010141817
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Chinese (zh)
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陈重光
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Individual
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Individual
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Priority to CN 201010141817 priority Critical patent/CN102211230A/en
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Abstract

The invention provides a saw bit capable of bidirectionally sawing. Front and back edges of each sawtooth of the saw bit body are respectively provided with a saw blade, so that positive and inverse rotation directions of the saw bit both can generate a sawing effect, and the service life of the saw bit is prolonged. The non-sharpened obtuse angle of the back saw blade of the sawtooth of the saw bit can scrape the rough edges and scraps of cuts, so that the cuts are smooth. When the back saw blade of a former sawtooth of the saw bit is in the cut, the front saw blade of the following sawtooth has sawed in a workpiece, so that the direction is not deflected when the saw bit is used for sawing the workpiece. When the saw bit is used on a pair of double saw bits sawing in positive and inverse directions, one of the saw bits is provided with a salient point to tightly separate the double saw bits coaxially, and a narrow interval is formed, so that the friction high heat generated during the sawing operation is reduced, deformation of the saw bit is avoided, and the sawing effect is improved.

Description

Saw blade that can two-way sawing
Technical field
The present invention relates to a kind of saw blade that can two-way sawing, front and rear edges of each sawtooth all is provided with the saw sword on it, and can make two saw swords of this sawtooth can do sawing work respectively under two different mounting directions.In addition, during this saw blade sawing work package, the trailing edge saw cutlery of not doing sawing has the effect of removing otch.
Background technology
Saw blade comprises blade body and the saw sword that is arranged on the blade body.The periphery of this blade body forms sawtooth, sets firmly the saw sword on this sawtooth.Rely on of the sawing of this saw sword, and can finish the work of cutting otch object.This saw blade in use for some time, what damage earlier must be the saw sword.And the saw sword is when being damaged, and saw blade promptly can't use, and must abandon.The cost of manufacture of the blade body of this saw blade is far above the cost of sawtooth.When the low saw sword of cost damages, intact blade body must be abandoned together, cause the wasting of resources, be not to use the pain that the person can't be forgotten in the heart yet.
Saw blade can be divided into thickness two class sawtooth by the sawtooth number.The rough sawn tooth that the sawtooth number is few, sawing speed is fast but sawing face is coarse.The serration that the sawtooth number is many, sawing speed is slow but sawing face is comparatively level and smooth.Obvious especially to this phenomenon of wood materials.Select any saw blade, the office that faces a difficult choice that all can take place how to accept or reject.The sawtooth of the saw blade of common unidirectional sawtooth all is to belong to the rough sawn tooth that can produce coarse saw kerf usually.
Existing many design or files at this phenomenon, its main emphasis are or all are subject to and only improve the unidirectional saw blade that uses separately, or comprise that installing partition etc. additional improves saw blade merging use at interval.As follows:
United States Patent (USP) is numbered the invention of US 2004/0182217 A1 or WO 2008/057027, is the saw blade that oppositely changes mutually with a pair of unidirectional sawtooth, organizes saw blade upright in pairs with the position that certain circumference type partition places the saw blade side to design.Such sawtooth needs complicated lathe and milling machine processing to form, and the shortcoming on saw blade is made is obvious.Simultaneously,, can produce high heat,, and the sawing operation be produced disadvantageous consequence exerting an adverse impact of saw blade because sawtooth in use can produce relatively large frictional contact surface.During the loading sawing, saw blade is subjected to the metallicity change that sawing district heat energy causes, and can produce metal fatigue and crack, so that shorten the service life of saw blade.
United States Patent (USP) numbering 4,641,562 is upright with two all different coaxial adjacent set of circular saw blade of saw blade and sawtooth size.During sawing, the rough lumber of the advanced row of big saw blade, small saw blade is smoothly processed sawing with the saw kerf that forms in front.The saw blade of a pair of like this or one group of traditional method of indicating the pronunciation of a Chinese character counter-rotating, not only technical unactual, suitable difficulty is also arranged in the making.
United States Patent (USP) numbering 4,133,240, be to attach most importance to the circular saw blade of unidirectional sawtooth and the sawtooth angle and the low point of penetration of improvement, the saw plane inclination or the angle of its decision saw sword, can arrange alternately specially designed annular saw edge, therefore, can bring sizable saw blade usefulness especially in the worn area of saw blade.
Summary of the invention
Main purpose of the present invention is to provide a kind of saw blade that can two-way sawing, and the front and rear edges of its each sawtooth respectively is provided with a saw sword, and can do the sawing of both direction respectively, to improve the service life of saw blade.
Main purpose of the present invention is to provide a kind of saw blade that can two-way sawing, and it can be removed burr, the detritus of otch, and produce level and smooth otch in the sawing work package.
A further object of the present invention is providing a kind of saw blade that can two-way sawing, and the effect that it has correcting sawing direction makes otch more smooth.
Saw blade that can two-way sawing provided by the present invention is a pair of saw blade, and this can be coaxially installed on the saw cutting device saw blade, and does the mutual counter motion and the coaxial traditional method of indicating the pronunciation of a Chinese character to each other; Wherein:
This is provided with separately saw blade and a plurality ofly is standing shape along the blade body edge and for the spaced sawtooth of equal angles; The front and rear edges of each sawtooth of each saw blade respectively sets firmly a saw sword with the corresponding kenel in front and back, makes the saw blade forward and backward all can produce the sawing effect.
The present invention provides in addition can two-way sawing saw blade, it is provided with along the blade body edge and a plurality ofly is standing shape and is the spaced sawtooth of equal angles; The front and rear edges of each sawtooth of each saw blade respectively sets firmly a saw sword with the corresponding kenel in front and back, makes the saw blade forward and backward all can produce the sawing effect.
Saw blade that can two-way sawing provided by the present invention, wherein, the leading edge of the sawtooth of saw blade saw sword sawing meeting forms coarse otch, and the burr detritus of the obtuse angle of not opening cutting edge of a knife or a sword (or right angle) the scraped otch of the trailing edge of this sawtooth saw sword, and make otch become level and smooth shape.
Saw blade that can two-way sawing provided by the present invention, wherein, the trailing edge of the last sawtooth of saw blade saw sword is still in otch the time, and the leading edge saw sword of the saw sword of back sawtooth sawing is gone into work package, when making saw blade sawing work package, can the offset direction.
Description of drawings
Fig. 1 is the outside drawing of the embodiment of the invention;
Fig. 2 is the front view of first saw blade among Fig. 1;
Fig. 3 is the front view of second saw blade among Fig. 1;
Fig. 4 is a profile embodiment illustrated in fig. 1;
Fig. 5 is the schematic diagram of another embodiment of salient point on first saw blade.
Description of reference numerals: 10-first saw blade; The 11-sawtooth; 12-leading edge saw sword; 13-trailing edge saw sword; The 14-obtuse angle; The 15-recess; The 151-sidewall; The 152-sidewall; The 16-perforation; 16 '-shrinkage pool; 17-at interval; 20-second saw blade; The 21-sawtooth; 22-leading edge saw sword; 23-trailing edge saw sword; The 24-obtuse angle; The 25-recess; The 251-sidewall; The 252-sidewall; The 30-work package; 40-salient point (head); 40 '-salient point; The 41-rivet.
The specific embodiment
The applicant because the saw blade of unidirectional sawing when the saw sharpening decreases, abandon, too waste, in providing a kind of saw blade that can two-way sawing, it can make the use life time of saw blade double, and can make the work package cut sides level and smooth, improves sawing quality.
The present invention disclose can two-way sawing saw blade, can be a pair of saw blade 10,20 that can two-way sawing, see Fig. 1.This a pair of saw blade 10,20 can be coaxially installed on the saw cutting device (not shown on the figure), and does the mutual counter motion and the coaxial traditional method of indicating the pronunciation of a Chinese character to each other.This saw cutting device is a kind of two electric saws of the saw blade of forward and reverse respectively of assembling.
Cooperate Fig. 2, Fig. 3, this a pair of saw blade comprises one first saw blade 10 and one second saw blade 20.This first saw blade 10 and second saw blade 20 are provided with separately and a plurality ofly are standing shape along the blade body edge and for the spaced sawtooth 11,21 of equal angles.The front and rear edges of each sawtooth of this first saw blade 11 respectively sets firmly a saw sword 12,13 with the corresponding kenel in front and back, makes this first saw blade 10 all can produce the sawing effect to work package 30 when forward and backward.The front and rear edges of each sawtooth 21 of this second saw blade 20 respectively sets firmly a saw sword 22,23 with the corresponding kenel in front and back, makes this second saw blade 20 all can produce the sawing effect to work package 30 when forward and backward.
For just changeing (turning clockwise), then its sawtooth 11 saw sword 12 of touching work package 30 earlier is leading edge saw sword 12 to aforesaid first saw blade 10 on saw cutting device, and 13 of another saw swords are sawed sword 13 for the rear.Second saw blade 20 is counter-rotating (being rotated counterclockwise) on saw cutting device, then its sawtooth 21 saw sword 22 of touching work package 30 earlier is leading edge saw sword, and another 23 of saw sword is that sword 23 is sawed at the rear.
See also Fig. 2 and Fig. 4.On the blade body of aforementioned first saw blade 10, be provided with at least three salient points 40 that are provided with at interval with equal angles.In the present embodiment, the quantity of this salient point 40 is 9.This each salient point 40 is on same circle.The top of this each salient point 40 contacts with second saw blade 20, makes and forms an interval 17 between first saw blade 10 and second saw blade 20.Rely on this salient point 40 between first saw blade 10 and second saw blade 20, make the frictional force of contact-making surface little, temperature can not rise too high yet, makes two saw blades 10,20 can not improve the precision of cutting because of overheated and softening, and the service life of improving saw blade 10,20.The position that salient point 10 is set on this first saw blade 10 is provided with perforation 16, fixes a rivet 41 in this perforation place, and the head 40 of this rivet 41 promptly forms salient point 40.
When influencing the sawing effect when 12, the 22 generation wearing and tearing of the saw of the leading edge in aforementioned first saw blade 10 or second saw blade 20 sword, two saw blades 10,20 can be installed by taking off the face that changes on the saw cutting device, and be used the trailing edge saw sword 13,23 of two saw blades 10,20 to carry out sawing work.Therebetween, the rivet 41 on first saw blade 10 must be taken off in the strike mode, and change one side and be driven into again in the perforation 16, and the head 40 that makes this rivet 40 forms salient point 40 at the another side of first saw blade 10.This changes between first saw blade 10 that face uses and second saw blade 20 and relies on each salient point 40 and the formation gap.So have the service life of first saw blade 10 of two saw swords 12,13,22,23 and second saw blade 20 and be two times of saw blade of traditional single saw sword.
Saw sword 12,13,22,23 thickness of this first saw blade 10 and second saw blade 20 are slightly larger than the thickness of this sawtooth 11,12, make this saw sword 12,13,22,23 form an obtuse angle that does not put the first edge on a knife or a pair of scissors 14,24 (or right angle) in the junction with sawtooth 11,21.When with first saw blade 10 and second saw blade, 20 sawing work packages 30, the leading edge saw sword 12,22 of each sawtooth 11,21 of each saw blade 10,20 is done the effect of sawing work package 30, trailing edge saw sword 13,23 can produce non-sawing with the obtuse angle 14,24 that do not put the first edge on a knife or a pair of scissors and side to the sawing surface scraping action, and reaming, detritus, and make notch shape become even surface.
In aforementioned, the outer rim central authorities of each sawtooth 11,21 of first saw blade 10 and second saw blade 20 are provided with the breach 15,25 of an indent, and make this sawtooth 11,21 be the dovetail shape.When being respectively this sawtooth 11,21 front and rear edges saw sword 12,13,22,23 sawing work packages, the two side 151,152,251,251 of this breach 15,25 leads bevel.
See also Fig. 2.During these first saw blade, 10 sawing work packages 30, when the leading edge of previous sawtooth 11 saw sword 12 broke away from otch, its trailing edge saw sword 13 was still in otch.At this moment, the leading edge of a back sawtooth 11 saw sword 12 sawing is gone into work package 30, when making first saw blade, 10 sawing work packages 30, and can the offset direction.In like manner, during second saw blade, 20 sawing work packages 30, also can the offset direction, see Fig. 3.
See also another embodiment that forms salient point 40 ' shown in Fig. 5 on first saw blade 10.With salient point 40 ', beat recessed mode with punching press and form on this first saw blade 10.Make an end face of these saw blade 10 bodies form salient point 40 ', the other end forms shrinkage pool 16 ' relatively. Saw blade 10,20 shown in Figure 5 is assembled in a saw cutting device (not shown on the figure) with forward and backward motor.When leading edge saw sword 12,22 wearing and tearing of the sawtooth 11,21 of first saw blade 10 and second saw blade 20, this saw cutting device can directly change motor and turn to, and can make the trailing edge of the sawtooth 11,21 of first saw blade 10 and second saw blade 20 saw sword 13,23 and carry out sawing work.So can rely on the switching of the motor forward and backward of saw cutting device, making saw blade 10,20 shown in Figure 5 needn't change face installs, just can make first saw blade 10 that is just changeing sawing originally change into the counter-rotating sawing, second saw blade 20 of the sawing of do counter-rotating is originally changed into and just changeed sawing, and is more easy in the operation.
The design of the two saw of the present invention sword is the saw blade of available single saw blade also, and banded saw blade (wire saw blade).When the saw blade of being installed on one saw cutting device (not shown on the figure) was single saw blade (not shown on the figure), its needs changed face assembling saw blade, can use trailing edge saw sword to carry out sawing work.Aforesaid saw cutting device can be circular sawing machine, also can be other manual or power tool machines, as electric saw, scroll saw, handsaw or bow saw.
Only the above, only be preferred embodiment of the present invention, when can not limiting scope of the invention process, so the displacement of the change of numerical value or equivalent elements such as with this, or, all should still belong to the category that patent of the present invention contains according to equalization variation and modification that the present patent application claim is done.

Claims (9)

  1. One kind can two-way sawing saw blade, be a pair of saw blade, this can be coaxially installed on the saw cutting device saw blade, and does the mutual counter motion and the coaxial traditional method of indicating the pronunciation of a Chinese character to each other; It is characterized in that:
    This is provided with separately saw blade and a plurality ofly is standing shape along the blade body edge and for the spaced sawtooth of equal angles; The front and rear edges of each sawtooth of each saw blade respectively sets firmly a saw sword with the corresponding kenel in front and back.
  2. 2. saw blade that according to claim 1 can two-way sawing is characterized in that, on the blade body of a saw blade, is provided with at least three salient points that are provided with at interval with equal angles, and the top of this salient point is with another saw blade and contacts shape.
  3. 3. as saw blade that can two-way sawing as described in the claim 2, it is characterized in that the salient point on the blade body of this saw blade is to form with impact style; Then an end face of this blade body forms salient point, and the other end forms shrinkage pool relatively.
  4. 4. as saw blade that can two-way sawing as described in the claim 2, it is characterized in that the position that salient point is set on the blade body of this saw blade is provided with perforation, fix a rivet in this perforation place, the head of this rivet forms this salient point.
  5. 5. saw blade that according to claim 1 can two-way sawing is characterized in that the outer rim central authorities of each sawtooth of each saw blade are provided with the breach of an indent, and make this sawtooth be the dovetail shape; When being respectively this sawtooth front and rear edges saw sword sawing work package, the two side of this breach leads bevel.
  6. 6. saw blade that according to claim 1 can two-way sawing, it is characterized in that, in the forward and backward saw sword of each sawtooth of each saw blade, one saw sword is used for the sawing work package, another saw sword can produce the scraping action of non-sawing to cut surface with the obtuse angle that do not put the first edge on a knife or a pair of scissors and side, to produce level and smooth otch.
  7. One kind can two-way sawing saw blade, it is characterized in that, be provided with along the blade body edge and a plurality ofly be standing shape and be the spaced sawtooth of equal angles; The front and rear edges of each sawtooth of each saw blade respectively sets firmly a saw sword with the corresponding kenel in front and back.
  8. 8. as saw blade that can two-way sawing as described in the claim 7, it is characterized in that the outer rim central authorities of each sawtooth of this saw blade are provided with the breach of an indent, and make this sawtooth be the dovetail shape; When being respectively this sawtooth front and rear edges saw sword sawing work package, the two side of this breach leads bevel.
  9. 9. as saw blade that can two-way sawing as described in the claim 7, it is characterized in that in the forward and backward saw sword of each sawtooth of this saw blade, a saw sword is used for the sawing work package, another saw sword can produce the scraping action of non-sawing to cut surface with the obtuse angle that do not put the first edge on a knife or a pair of scissors and side, to produce level and smooth otch.
CN 201010141817 2010-04-06 2010-04-06 Saw bit capable of bidirectionally sawing Pending CN102211230A (en)

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CN 201010141817 CN102211230A (en) 2010-04-06 2010-04-06 Saw bit capable of bidirectionally sawing

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Application Number Priority Date Filing Date Title
CN 201010141817 CN102211230A (en) 2010-04-06 2010-04-06 Saw bit capable of bidirectionally sawing

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350547A (en) * 2011-10-17 2012-02-15 卢庆玉 Dual-sawblade structure adaptive to dual-sawblade cutting machine
CN102513604A (en) * 2011-11-30 2012-06-27 高金云 Driving device of double-blade metal cutting machine
WO2013063725A1 (en) * 2011-10-31 2013-05-10 宁波黑松工具有限公司 Saw-blade structure of double saw-blade cutting machine
WO2013131350A1 (en) * 2012-03-09 2013-09-12 宁波天和电动工具有限公司 Saw blade strcture of dual-blade saw
CN103567543A (en) * 2012-07-23 2014-02-12 佛山市南海日东工具制造有限公司 Saw blade
CN103862102A (en) * 2012-12-11 2014-06-18 苏州宝时得电动工具有限公司 Double-saw blade electric circular saw
CN104384607A (en) * 2014-10-15 2015-03-04 张家港市南丰程泰机械工具厂 Bidirectional strengthening circular saw blade

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945289A (en) * 1975-04-14 1976-03-23 Emilio Retana Rodriguez Saw tooth
DE29815349U1 (en) * 1998-08-27 1998-11-05 O.E.M. GmbH Produktions- und Vertriebsgesellschaft, 82031 Grünwald Rotary saw blade
CN1440851A (en) * 2002-02-26 2003-09-10 Lg.菲利浦Lcd株式会社 Cutting wheel of liquid crystal display plate
CN101116919A (en) * 2007-05-08 2008-02-06 郭一文 Sawblades in couple
JP2009101488A (en) * 2007-10-25 2009-05-14 Yamashin Seikyo Kk Rotary cutting blade and its manufacturing method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945289A (en) * 1975-04-14 1976-03-23 Emilio Retana Rodriguez Saw tooth
DE29815349U1 (en) * 1998-08-27 1998-11-05 O.E.M. GmbH Produktions- und Vertriebsgesellschaft, 82031 Grünwald Rotary saw blade
CN1440851A (en) * 2002-02-26 2003-09-10 Lg.菲利浦Lcd株式会社 Cutting wheel of liquid crystal display plate
CN101116919A (en) * 2007-05-08 2008-02-06 郭一文 Sawblades in couple
JP2009101488A (en) * 2007-10-25 2009-05-14 Yamashin Seikyo Kk Rotary cutting blade and its manufacturing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102350547A (en) * 2011-10-17 2012-02-15 卢庆玉 Dual-sawblade structure adaptive to dual-sawblade cutting machine
WO2013063725A1 (en) * 2011-10-31 2013-05-10 宁波黑松工具有限公司 Saw-blade structure of double saw-blade cutting machine
CN102513604A (en) * 2011-11-30 2012-06-27 高金云 Driving device of double-blade metal cutting machine
WO2013131350A1 (en) * 2012-03-09 2013-09-12 宁波天和电动工具有限公司 Saw blade strcture of dual-blade saw
CN103567543A (en) * 2012-07-23 2014-02-12 佛山市南海日东工具制造有限公司 Saw blade
CN103567543B (en) * 2012-07-23 2016-02-17 佛山市南海日东工具制造有限公司 A kind of saw blade
CN103862102A (en) * 2012-12-11 2014-06-18 苏州宝时得电动工具有限公司 Double-saw blade electric circular saw
CN103862102B (en) * 2012-12-11 2016-06-22 苏州宝时得电动工具有限公司 Double; two saw blade electrotrephines
CN104384607A (en) * 2014-10-15 2015-03-04 张家港市南丰程泰机械工具厂 Bidirectional strengthening circular saw blade

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Application publication date: 20111012