CN102922038A - Longitudinal cutting knife - Google Patents
Longitudinal cutting knife Download PDFInfo
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- CN102922038A CN102922038A CN201210480421XA CN201210480421A CN102922038A CN 102922038 A CN102922038 A CN 102922038A CN 201210480421X A CN201210480421X A CN 201210480421XA CN 201210480421 A CN201210480421 A CN 201210480421A CN 102922038 A CN102922038 A CN 102922038A
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- steel
- rip cutting
- cutting cutter
- intermediate layer
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Abstract
The invention relates to a longitudinal cutting knife which is characterized in that the discoid longitudinal cutting knife formed through heat treatment is made of metal cladding steel; the metal cladding steel comprises first steel and second steel of which the crystallize particle size is smaller than that of the first steel; the longitudinal cutting knife comprises an interlayer made of the first steel and a pair of outer layers respectively arranged on two sides of the interlayer; the outer layers are made of the second steel; the interlayer is aligned with the outer layers; and at least one outer layer is provided with a cutting edge. As the first steel of the interlayer is cheaper than the second steel of the outer layers, and the second steel has better abrasion resistance, the longitudinal cutting knife is not only cheap but also wear-resistant integrally.
Description
Technical field
The present invention relates to the cutter relevant with the rip cutting cutter.
Background technology
The rip cutting cutter is usually used to cut the edge than thin material, and for example band shape is grown the edges of plate, and in fact the rip cutting cutter also is widely used in continuous cutting material.Communique number is that 2983118 Japanese Patent Document discloses a kind of edge waste cutter sweep, is up and down a pair of rip cutting cutter, locates to be configured to relative cutting blade and be rotated around disc-shaped body.Material is placed between the two rip cutting cutteves, according to cutting blade up and down material is cut off.The cutting cutting blade that the rip cutting cutter is accompanied by material can wear and tear to some extent, and the knife edge also will become not sharp gradually.Therefore, need to select the reasonable high-speed tool steel grade of some wearabilities.But wearability is steel grade preferably, and price also can be higher, if the whole or large section of rip cutting cutter is used this high abrasion steel grade material, will improve the cost of rip cutting cutter.Unexamined Patent 10-146714 communique discloses a kind of rip cutting cutter, has covered the hard layer that one deck diamond-like mainly is made of carbon at the circumference place of disc-shaped body.Existing studies show that this hard layer can suppress the wearing and tearing of cutting blade, and with respect to the steel that use high abrasion, that has reduced to a certain extent the rip cutting cutter uses the material cost.But the rip cutting cutter of capped hard layer can not form cutting blade again by grinding when wearing and tearing occur.So just have to cutter integral body is changed, can be caused so again expense to rise, and increase the trouble degree that cutter uses.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, provides a kind of with low cost, the rip cutting cutter of long service life.
For achieving the above object, the technical solution used in the present invention is: a kind of rip cutting cutter, it is characterized in that: be the discoid rip cutting cutter that forms through Overheating Treatment, consisted of by the clad steel that is formed with the first steel and the second little steel of ratio the first steel crystallization particle diameter, comprise the intermediate layer that is made of the first steel, and be arranged at respectively the pair of outer layer of both sides, described intermediate layer, described skin is made of the second steel, align with two skins in the intermediate layer, at least one described outer place is provided with cutting blade.
In a preferred embodiment of the present invention, further comprising described pair of outer layer, is the symmetric shape of clamping described intermediate layer, and two described outer places are provided with respectively cutting blade.
In a preferred embodiment of the present invention, comprise that further described the second steel is the powder high-speed tool steel.
In a preferred embodiment of the present invention, comprise that further described the first steel is founding high-speed tool steel or mechanical realization steel alloy.
In a preferred embodiment of the present invention, comprise that further the toughness of described the first steel is better than the toughness of the second steel.
The invention solves the defective that exists in the background technology, have following beneficial effect:
(1) consist of the intermediate layer than the first steel of the second steel cheapness, second steel better than the first steel wearability consists of outer, and outer place arranges cutting blade, and words as a whole are cheapness but also can be life-extending not only.
(2) pair of outer layer is being pushed the intermediate layer and is being formed symmetrical shape, is conducive to the balance of stress distribution, can suppress the generation of the bad phenomenon such as distortion.
(3) second steel adopt possesses high tenacity, and the material of the high-quality characteristic of high strength and strong wearability can improve processability and the durability of cutting blade.
(4) first steel adopt founding high-speed tool steel or mechanical realization steel alloy, can guarantee on the basis of cheapness the necessary intensity of rip cutting cutter integral body.
(5) first steel are higher than the toughness of the second steel, are accompanied by heat treated expansion, contraction, and skin can be controlled the intermediate layer neatly, also can relax inner stress.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.Fig. 1 is the front view of embodiment of the invention 1-2;
Fig. 2 is the side view of the embodiment of the invention 1;
Fig. 3 is the A-A sectional drawing of embodiment 1 in Fig. 1;
Fig. 4 is the side view of the embodiment of the invention 2;
Fig. 5 is the A-A sectional drawing of embodiment 2 in Fig. 1;
Fig. 6 is the front view of a kind of embodiment of being different from 1 of the present invention, 2 rip cutting cutter;
Fig. 7 is the side view of Fig. 6 rip cutting cutter;
Fig. 8 is the ideograph that cuts off test;
Among the figure: 10, rip cutting cutter, 12, axis hole, 14, the intermediate layer, 16, skin, 18, cutting blade, 20, the rip cutting cutter, 30, the rip cutting cutter, 21, material, 22, forward burr, reverse burr, 24, shortcoming section.
The specific embodiment
The present invention is further detailed explanation in conjunction with the accompanying drawings and embodiments now, and these accompanying drawings are the schematic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only shows the formation relevant with the present invention.
Embodiment 1: as Figure 1-3, the rip cutting cutter 10 of embodiment 1 forms at discoid place, and through is in the conglobate axis hole 12 of thickness direction shape simultaneously.Embed supporting axis at these axis hole 12 places and set shearing device.Rip cutting cutter 10 is rotated centered by axis hole 12 and drives or be driven to rotate, and the cutting blade 18 in the design of circumferential edges place is crushed on the tabular processing material and cuts, and this tabular processing material can be thin plate, papery thin plate for example, resin sheet, sheet metal.
Above-mentioned the first steel can be selected the mechanical realization steel alloy, perhaps founding high-speed steel, for example chromium steel (SCr), manganese steel (SMn), Mn-Cr steel (SMnC), chrome-molybdenum steel (SCM), nickel chromium molybdenum steel (SNCM) or Al-Cr-Mo steel (SACM) are compared with the second steel and to have been used cheap material.The carbon element content of the first steel is between 0.4%-1.0%, during its carbon less than 0.4%, can not obtain necessary intensity in the time of heat treated, can cause the toughness deficiency when surpassing 1.0% and the internal stress residue problem can occur, therefore, suitable carbon element content in the first steel be able to make it obtain necessary intensity and very high toughness heat treated the time, particularly compare with the second steel, it is high that the toughness of the first steel is wanted.
Above-mentioned the second steel also adopts high-speed tool steel, is generally founding high-speed tool steel or powder high-speed tool steel, preferably uses the powder high-speed tool steel.The powder high-speed tool steel obtains according to powder metallurgic method, has the steel grade of homogeneous miniaturization tissue.The founding high-speed tool steel is to obtain by the method beyond the powder metallurgy, namely the general high-speed tool steel thicker than powder high-speed tool structure of steel.When the second steel was selected the founding high-speed tool steel, the first steel need be selected the larger steel grade of founding high-speed tool steel crystallization particle diameter than the second steel, and is more superior than the first steel in intensity and wearability to guarantee the second steel.The carbon element content of the high-speed tool steel that the second steel is selected can obtain necessary toughness, intensity and wearability in 1.0%～2.2% scope.The carbon that contains when the second steel is less than 1.0% the time, and wearability will reduce; Toughness will be not enough when surpassing 2.2%, and the problem of sword breach also might occur.
Shown in Fig. 2-3, the ratio that the thickness in the intermediate layer 14 of rip cutting cutter 10 is designed outer 16 is large.The thickness occurrence of intermediate layer 14 and skin 16 is set according to cutting material and processing conditions.When being set in the 2mm-30mm scope such as the thickness in intermediate layer 14, outer 16 thickness will be set in 0.lmm-1.5mm, so just can guarantee the general purposes performance of rip cutting cutter 10.
It is lamellar machining object below the 0.lmm that the general purposes of above-mentioned rip cutting cutter 10 refers to cut off at least the thickness that is made of paper, resin or metal, is the metal tabular machining object of 3.2mm to the multipotency shearing thickness.Outer 16 thickness is during less than 0.lmm, a pair of rip cutting cutter 10 is set face-to-face, cuts while the cutting blade 18 of two rip cutting cutteves 10 is in contact with one another, at this moment, even cutting object is softer resinous lamellar machining object, rip cutting cutter 10 can not obtain practical durability.When the tabular processing material of metal-made of cutting 3.2mm thickness, outer 16 thickness is preferably greater than 1.lmm.Outer 16 thickness can be greater than 1.5mm, but the thickness proportion that consists of the skin 16 that first steel in intermediate layer 14 and the second steel by high price consist of will become greatly, employing clad steel, and the value on the expense will tail off.When outer 16 thick when equaling 1.5mm, durability is better.
Shown in Fig. 2-3, in the rip cutting cutter 10, become cutting blade 18 by the edge part of outer 16 outer peripheral faces that consist of with the dihedral that smooth end face is reported to the leadship after accomplishing a task.The whole through-thickness straight line of rip cutting cutter 10 outer peripheral faces extends to form, and being designed angle at outer 16 places is 85-95 ° of cutting blade 18 that is preferably the right angle.
Next the simple explanation preparation method of rip cutting cutter 10 once.The clad steel is at overlapping applying the second steel of the both sides of the first steel difference, and calendering after being heated through heating furnace by laminated material just can make the first steel and the second steel be undertaken bonding by metallurgy.At clad steel place, clamp the first steel and make the second steel form symmetrical style.For the clad steel that cuts out at the circle place, through distorting again after necessary normalizing, the annealing, further quench again or tempering, come so that the first steel and the second hardening of steel.And, grind in case of necessity, to make cutting blade 18 alignment in the time of grinding, carry out again last processing.Skin 16 by the symmetric figure that is made of the second steel is clamped the intermediate layer 14 that is made of the first steel, has just obtained rip cutting cutter 10.
The cutting blade 18 that rip cutting cutter 10 forms and since outer 16 be by wearability and intensity all good the second steel consist of, so can prolong the life-span of product.The price of powder high-speed tool steel is more than 4 times of founding high-speed tool steel, but the integral body of rip cutting cutter 10 not merely is made of the second steel, therefore intermediate layer 14 need not to reach the quality of the second steel, is that the first steel by cheapness consists of, and so just can suppress expense.And, pressed by the atomic level instrument by the first steel and the second steel by the rip cutting cutter 10 that the clad steel forms, be for such as ensuring coverage film in intermediate layer 14 and the outer 16 rear processing of fitting is not come off.Make the strength-enhanced of rip cutting cutter 10 cutting blades 18 can avoid carrying out for example rear processing of coverlay, the cutting blade 18 of wearing and tearing can be regenerated after grinding again again, and the life-span also can prolong.Particularly the tissue of powder high-speed tool steel is fine, homogeneous, and has both high tenacity, high strength, permanent wearability, so it is outer 16 to utilize the powder high-speed tool steel to consist of, just can forms and connects the closely miniature circular cutting blade 18 of nick shaped.Therefore, improve processability and the durability of cutting blade 18.Also have, founding high-speed tool steel or mechanical realization are applied to the first steel with steel alloy, like this can either be cheap, can guarantee again rip cutting cutter 10 all necessary intensity.
Embodiment 2: shown in Fig. 4-5, rip cutting cutter 20 is with the difference of embodiment 1, and outer peripheral face begins to end face the radian in an oblique radius outside is arranged from the thickness direction center side, and this radian is designed to the slightly cutting blade 18 of angie type sample at outer 16 places.
Among the embodiment 1,2, what rip cutting cutter 10,20 outer peripheral face can be for flat condition also can be mediad inner sides of radius bending or the picture V shape concave shape from thickness direction, and the angle of cutting blade 18 is carried out corresponding adjusting according to rapidoprint or condition.
The below utilizes the rip cutting cutter 10 of embodiment 1 to cut off test, and the concrete material of used rip cutting cutter 10 and structure, shape are as follows:
Test example 1: the chrome-molybdenum steel of choosing the JIS specification and be SCM440 is made the first steel, chooses the powder high-speed tool steel of Hitachi Metals Co., Ltd, commodity HAP40 by name as the second steel, and the two ends of the first steel are lived by two the second steel clamps, produce the clad steel.After cutting out circle on the clad steel, the heat treatment of stipulating will obtain diameter 235mm, thickness is the rip cutting cutter of 5mm.Above-mentioned heat-treat condition is that tempering was passed through in heating in 12 minutes again under 1160 ℃ the temperature, at last cooling.Rip cutting cutter intermediate layer thickness is 4mm, and two outer layer thickness are respectively 0.5mm.In addition, the shaft hole diameter of rip cutting cutter formation is 120mm.
Test example 2: the founding high-speed tool steel of choosing the JIS specification and be SKH2 is made the first steel, choose the powder high-speed tool steel of Hitachi Metals Co., Ltd, commodity HAP40 by name as the second steel, the two ends of the first steel are lived by two the second steel clamps, produce the clad steel.Rip cutting cutter 10 in the test example 2, except the clad steel by test example 2 forms, with test example 1 with identical shaped manufacturing.
Comparative example 1: the material of making rip cutting cutter 10 all is the Hitachi Metals Co., Ltd that the second steel uses in test example 1-2, the powder high-speed tool steel of commodity HAP40 by name.
Comparative example 2: the material of making rip cutting cutter 10 all is that the first steel uses in test example 2 JIS specification is the founding high-speed tool steel of SKH2.
Test method: as shown in Figure 8, the rip cutting cutter 10 among above-mentioned test example 1-2 and the comparative example 1-2 is carried out material 21 with the speed of sending into of 100m/min respectively cut off, test the life expectancy of each rip cutting cutter 10, material 21 is the stainless-steel sheet of thick 2mm.Cut off in the test, shown in the expanded view of Fig. 8, forward burr, reverse burr 22 or shortcoming section 24 finish no matter just be judged as life expectancy during this wherein which kind of bad the appearance.
Result of the test: the rip cutting cutter of test example 1 and test example 2, when showing than comparative example 2 high-durabilities, and can judge no less than the durability of comparative example 1.At this moment, can draw the rip cutting cutter of test example 1 than the such result of poor durability of the rip cutting cutter of test example 2.Here it is, compare with the founding high-speed tool steel, the quench hardening ability of the constituent material chrome-molybdenum steel in rip cutting cutter intermediate layer is low in the test example 1, so the bulk strength of rip cutting cutter will be poorer than test example 2 in the test example 1, active force during cut-out will cause plastic deformation a little, and the gap easily occurs at the toe joint place of the rip cutting cutter of test example 2.
Need to prove that rip cutting cutter of the present invention is not limited only to aforesaid formation, following change also is possible.
(1) shown in Fig. 6-7, the outer peripheral face of rip cutting cutter 30 begins to be formed slopely the inclined plane to opposite side to radial direction from a side of thickness direction.Skin 16 places of extending laterally side are provided with cutting blade 18 and also are fine.Even like this, clamp the skin 16 of a pair of symmetry in intermediate layer 14, balanced internal stress will often occur, even form to tilt also to be fine when grinding outer peripheral face after the heat treatment when heat-treating.In other words, if the symmetry of the thickness direction of two skins 16 is guaranteed heat treated the time, asymmetrical rip cutting cutter shape also is feasible on thickness direction even obtain.
(2) shape of cutting blade is not limited only to aforesaid formation, and the two-edged of sword sheet or two face tilts can be selected.
Above foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related personnel can in the scope that does not depart from this invention technological thought, carry out various change and modification fully.The technical scope of this invention is not limited to the content on the specification, must determine technical scope according to the claim scope.
Claims (8)
1. rip cutting cutter, it is characterized in that: be the discoid rip cutting cutter that forms through Overheating Treatment, consisted of by the clad steel that is formed with the first steel and the second little steel of ratio the first steel crystallization particle diameter, comprise the intermediate layer that is consisted of by the first steel, be arranged at respectively the pair of outer layer of both sides, described intermediate layer, described skin is made of the second steel, aligns with two skins in the intermediate layer, and at least one described outer place is provided with cutting blade.
2. rip cutting cutter according to claim 1, it is characterized in that: described pair of outer layer is the symmetric shape of clamping described intermediate layer, two described outer places are provided with respectively cutting blades.
3. rip cutting cutter according to claim 1 and 2, it is characterized in that: described the second steel is the powder high-speed tool steel.
4. rip cutting cutter according to claim 1 and 2, it is characterized in that: described the first steel is founding high-speed tool steel or mechanical realization steel alloy.
5. rip cutting cutter according to claim 3, it is characterized in that: described the first steel is the steel alloy that founding high-speed tool steel or mechanical realization are used.
6. according to claim 1 and 2 or 5 described rip cutting cutteves, it is characterized in that: the toughness of described the first steel is better than the toughness of the second steel.
7. rip cutting cutter according to claim 3, it is characterized in that: the toughness of described the first steel is better than the toughness of the second steel.
8. rip cutting cutter according to claim 4, it is characterized in that: the toughness of described the first steel is better than the toughness of the second steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210480421.XA CN102922038B (en) | 2012-11-23 | 2012-11-23 | Rip cutting cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210480421.XA CN102922038B (en) | 2012-11-23 | 2012-11-23 | Rip cutting cutter |
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| CN102922038A true CN102922038A (en) | 2013-02-13 |
| CN102922038B CN102922038B (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210480421.XA Expired - Fee Related CN102922038B (en) | 2012-11-23 | 2012-11-23 | Rip cutting cutter |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2915991A1 (en) * | 1979-04-20 | 1980-10-30 | Salje Ernst | Disc shaped cutting tool - has protective component over edge of vibration reducing cladding and secured to body |
| CN2081787U (en) * | 1990-12-20 | 1991-07-31 | 青岛粉末冶金厂 | Coated blade |
| JPH0788795A (en) * | 1993-09-22 | 1995-04-04 | Mitsubishi Heavy Ind Ltd | Slitter knife |
| CN2198060Y (en) * | 1994-01-28 | 1995-05-24 | 武汉钢铁(集团)公司 | Disk shear edge |
| US5578773A (en) * | 1991-08-07 | 1996-11-26 | Erasteel Kloster Aktiebolag | High-speed steel manufactured by powder metallurgy |
| JPH10146714A (en) * | 1996-11-12 | 1998-06-02 | Disco Abrasive Syst Ltd | Slitter knife |
| CN2372084Y (en) * | 1999-01-22 | 2000-04-05 | 秦皇岛开发区宏维表面工程技术研究所 | Shear blade |
| CN1360993A (en) * | 2000-12-28 | 2002-07-31 | 富士胶片株式会社 | Cutting knife and cutting method |
| US20040000060A1 (en) * | 2002-07-01 | 2004-01-01 | Guangshan Zhu | Composite circular slicer knife |
| CN1496797A (en) * | 2002-09-27 | 2004-05-19 | 株式会社瑞光 | Cut-off removed device |
| CN201592287U (en) * | 2009-10-11 | 2010-09-29 | 襄樊市博亚机械有限公司 | Compound alloy disc knife |
-
2012
- 2012-11-23 CN CN201210480421.XA patent/CN102922038B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2915991A1 (en) * | 1979-04-20 | 1980-10-30 | Salje Ernst | Disc shaped cutting tool - has protective component over edge of vibration reducing cladding and secured to body |
| CN2081787U (en) * | 1990-12-20 | 1991-07-31 | 青岛粉末冶金厂 | Coated blade |
| US5578773A (en) * | 1991-08-07 | 1996-11-26 | Erasteel Kloster Aktiebolag | High-speed steel manufactured by powder metallurgy |
| JPH0788795A (en) * | 1993-09-22 | 1995-04-04 | Mitsubishi Heavy Ind Ltd | Slitter knife |
| CN2198060Y (en) * | 1994-01-28 | 1995-05-24 | 武汉钢铁(集团)公司 | Disk shear edge |
| JPH10146714A (en) * | 1996-11-12 | 1998-06-02 | Disco Abrasive Syst Ltd | Slitter knife |
| CN2372084Y (en) * | 1999-01-22 | 2000-04-05 | 秦皇岛开发区宏维表面工程技术研究所 | Shear blade |
| CN1360993A (en) * | 2000-12-28 | 2002-07-31 | 富士胶片株式会社 | Cutting knife and cutting method |
| US20040000060A1 (en) * | 2002-07-01 | 2004-01-01 | Guangshan Zhu | Composite circular slicer knife |
| CN1496797A (en) * | 2002-09-27 | 2004-05-19 | 株式会社瑞光 | Cut-off removed device |
| CN201592287U (en) * | 2009-10-11 | 2010-09-29 | 襄樊市博亚机械有限公司 | Compound alloy disc knife |
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| CN102922038B (en) | 2015-07-29 |
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Granted publication date: 20150729 Termination date: 20191123 |