JP2667915B2 - Strip cutting machine - Google Patents
Strip cutting machineInfo
- Publication number
- JP2667915B2 JP2667915B2 JP1266124A JP26612489A JP2667915B2 JP 2667915 B2 JP2667915 B2 JP 2667915B2 JP 1266124 A JP1266124 A JP 1266124A JP 26612489 A JP26612489 A JP 26612489A JP 2667915 B2 JP2667915 B2 JP 2667915B2
- Authority
- JP
- Japan
- Prior art keywords
- strip
- blade
- cutting
- shaped
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Shearing Machines (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は条材切断機に係り、特にアルミ条材の切断面
における、かえりや切り屑の発生を防止し耐久性と品質
信頼性の確保に好適な条材切断機に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a strip cutting machine, and in particular, prevents burr and chips on the cut surface of an aluminum strip to ensure durability and quality reliability. The present invention relates to a suitable strip cutting machine.
従来、アルミニウムのような軟質金属条材の切断に
は、ニブラ、ローリングカッタ、およびシャーなどが実
用されている。Conventionally, nibbles, rolling cutters, shears, and the like have been used for cutting soft metal strips such as aluminum.
上記従来技術のニブラは、高速剪断刃を有する手動式
の工具であるが、切断面の曲がりが生じたり、切断精度
が十分でなく、また切断時に切り屑が散乱し能率の点で
も問題があった。The above nibble of the prior art is a hand-operated tool having a high-speed shearing blade. Was.
ローリングカッタは固定刃と、この固定刃に倣って回
転移動する回転刃との間で条材を切断するものである
が、回転刃が条材端面を２度切断する、いわゆる２次切
断を招きやすく、これに伴い、かえりや切り屑が発生す
る問題があった。A rolling cutter cuts a strip between a fixed blade and a rotary blade that rotates and moves following the fixed blade. However, the rolling blade cuts the end face of the strip twice, that is, so-called secondary cutting. There is a problem that burrs and chips are generated.
シャーは固定刃と可動刃の間で条材を剪断する普及度
の高いものであるが、切断面にかえりが発生しやすい問
題があった。Although the shear is widely used to shear the strip between the fixed blade and the movable blade, there is a problem that burrs are easily generated on the cut surface.
上記従来技術は、特にアルミニウムのような軟質金属
条材の切断には障害が発生しやすいため問題点の解決に
対する強い要望があった。本発明は上記の課題を解決す
るためのもので、切断面のかえりや切り屑の発生を防止
し、切断精度の向上と耐久性ならびに品質信頼性の確保
に好適な条材切断機を提供することを目的としてなされ
たものである。In the above-mentioned prior art, there is a strong demand for solving the problem, especially since cutting of a soft metal strip such as aluminum tends to cause an obstacle. The present invention is for solving the above problems, and provides a strip cutting machine that is suitable for preventing burr and chips on the cutting surface and improving cutting accuracy and ensuring durability and quality reliability. It is done for the purpose of.
上記の目的は、先鋭な外周縁を備え回転自在な円盤状
上刃と、先端に平坦部が形成された実質的に台形状の外
周縁を備え回転自在な円盤状下刃と、円盤状上刃の外周
縁と円盤状下刃の外周縁とが同一平面内で外接するよう
に保持する手段と、円盤状上刃および円盤状下刃が外接
状態を保持した状態で条材を円盤状上刃および円盤状下
刃の間に導入して直線移動させる手段を有し、円盤状上
刃が条材の板厚の実質的に上半分を切断し、円盤状下刃
が条材の実質的に下半分を切断し、条材が前記条材がそ
の板厚の中心近傍で切断されるよう条材切断機を構成す
ることにより達成される。The above object is to provide a rotatable disk-shaped upper blade having a sharp outer peripheral edge, a rotatable disk-shaped lower blade having a substantially trapezoidal outer edge having a flat portion formed at the tip, and a disk-shaped upper blade. A means for holding the outer peripheral edge of the blade and the outer peripheral edge of the disc-shaped lower blade so as to circumscribe in the same plane; and Means for introducing and linearly moving between the blade and the disc-shaped lower blade, wherein the disc-shaped upper blade cuts substantially the upper half of the thickness of the strip, and the disc-shaped lower blade substantially cuts the strip; This is achieved by forming a strip cutting machine such that the strip is cut near the center of its thickness.
上記の構成により、被加工物である金属条材を前記上
刃と下刃との間に導入し、上刃と下刃を転動させて前記
条材を切断する際に、切断抵抗を受けても中心線がずれ
ることなく、切断に伴うかえりや切り屑を発生すること
がない。With the above configuration, a metal strip that is a workpiece is introduced between the upper blade and the lower blade, and when cutting the strip by rolling the upper blade and the lower blade, a cutting resistance is received. Even if the center line does not shift, burrs and chips are not generated during cutting.
本発明の一実施例を図面と共に説明する。 An embodiment of the present invention will be described with reference to the drawings.
第１図は、本発明に係る条材切断機による斜視図であ
って、条材６を上刃１と下刃２の間に挿入した状態を示
している。円盤形状の上刃１と下刃２とは、それぞれの
外周縁の先端部分が互いに同一平面内で概ね外接する位
置に、回転自在にブラケット３、３によって軸支されて
おり、ブラケット３、３はボールネジ４、４と螺嵌しか
つガイド５、５によって支承されている。ボールねじ
４、４はプーリ7a、7bを装着し、相互間にベルト8bを架
設しており、モータ９からの駆動力はベルト8aを介して
プーリ7aに伝達されるように構成している。ボールねじ
４、４、ガイド５、５は同一平行方向に設定されている
から、モータ９の駆動回転により、ブラケット３、３は
同一関係位置を保持したまま所定方向に直線移動が可能
である。第２図（ａ）、（ｂ）は、アルミ条材６を切断
中の上刃１、下刃２近傍の拡大図である。同図図示によ
って明らかなように、上刃１は外周縁の先端部1aは尖鋭
端、下刃２は平端2aを備えている。このため、被加工物
であるアルミ条材６を上刃１と下刃２との間に導入し、
上刃１と下刃２を転動させて前記条材を切断する際に、
切断抵抗により、上刃１の先端部1aが多少左右に移動し
ても下刃２の平端2aとの間で余裕があるから、切断の中
心線がずれたりアルミ条材６が引きち切られることな
く、従って切断に伴うかえりや切り屑を発生することが
ない。FIG. 1 is a perspective view of a strip cutting machine according to the present invention, showing a state in which a strip 6 is inserted between an upper blade 1 and a lower blade 2. The disc-shaped upper blade 1 and the lower blade 2 are rotatably supported by the brackets 3 and 3 at positions where the tips of the outer peripheral edges thereof are substantially circumscribed in the same plane. Are screwed into the ball screws 4, 4 and supported by guides 5, 5. The pulleys 7a, 7b are mounted on the ball screws 4, 4, and a belt 8b is provided between the pulleys 7a, 7b. The driving force from the motor 9 is transmitted to the pulley 7a via the belt 8a. Since the ball screws 4, 4 and the guides 5, 5 are set in the same parallel direction, the driving rotation of the motor 9 allows the brackets 3, 3 to move linearly in a predetermined direction while maintaining the same relative positions. FIGS. 2A and 2B are enlarged views of the vicinity of the upper blade 1 and the lower blade 2 while cutting the aluminum strip 6. As is clear from the drawing, the upper blade 1 has a sharp end at the tip 1a of the outer peripheral edge, and the lower blade 2 has a flat end 2a. For this reason, the aluminum strip 6 which is a workpiece is introduced between the upper blade 1 and the lower blade 2,
When rolling the upper blade 1 and the lower blade 2 to cut the strip,
Due to the cutting resistance, even if the tip 1a of the upper blade 1 moves slightly to the left and right, there is a margin between the flat end 2a of the lower blade 2 and the center line of the cutting shifts or the aluminum strip 6 is cut off. Therefore, no burrs or chips are generated during cutting.
第３図は、本発明の条材切断機による条材切断機によ
るアルミ条材の切断原理説明図である。同図において、
頂角2aの回転上刃１に押圧力Ｆを付加したとき、アルミ
条６からの反力Ｒが刃面1b、1bと直角に、また摩擦力ｆ
が刃面1b、1bと平行に発生し、これらの力は平衡状態に
あるとすると、次の式が成立する。FIG. 3 is an explanatory view of the principle of cutting an aluminum strip by the strip cutting machine of the present invention. In the figure,
When a pressing force F is applied to the rotating upper blade 1 having an apex angle 2a, the reaction force R from the aluminum strip 6 is perpendicular to the blade surfaces 1b and 1b, and the friction force f
Are generated in parallel with the blade surfaces 1b, 1b, and these forces are in an equilibrium state, the following equation is established.
Ｆ＝２（Rsinα＋fcosα） 摩擦力ｆが最大静止摩擦力になったとして摩擦角をφと
すると したがって、上刃１の切り込みには少なくともＦ値より
も大きい押圧力が必要となる。また上式で明らかなよう
に、頂角2aが小さいほど押圧力Ｆを小さくすることがで
きる。F = 2 (Rsinα + fcosα) Assuming that the frictional force f has become the maximum static frictional force and letting the friction angle be φ Therefore, a pressing force larger than at least the F value is required for cutting the upper blade 1. Further, as is clear from the above equation, the smaller the apex angle 2a, the smaller the pressing force F can be made.
第４図は、アルミ条材６切断時における上刃１の頂角
の変化および下刃２の平端2aの有無と切断力P1、P2との
板厚ｔごとの関係図表、第５図は、同じく板厚Ｔごとの
増加量Δｔとの関係図表を示したものである。これら両
図表によれば、頂角は小さいほど切断力は小さく、切断
時の塑性変形による板厚の増加量も頂角の小さい方が少
ないことが示されている。第６図はアルミ条材６の切断
後の断面形状を示す断面図（ａ）、および斜視図（ｂ）
である。FIG. 4 is a chart showing the relationship between the vertical angle of the upper blade 1 and the presence or absence of the flat end 2a of the lower blade 2 and the cutting forces P 1 and P 2 for each plate thickness t when cutting the aluminum strip 6, FIG. 3 is a diagram showing the relationship with the increase amount Δt for each plate thickness T. These figures show that the smaller the apex angle, the smaller the cutting force, and the smaller the apex angle, the smaller the increase in the plate thickness due to plastic deformation during cutting. FIG. 6 is a sectional view (a) showing a sectional shape of the aluminum strip 6 after cutting, and a perspective view (b).
It is.
第７図は、本発明の他の実施例を示す斜視図で、定尺
材を指定幅に連続的に切断する状況を示しており、定尺
条材10が繰出部14から送りローラ13によって送られなが
ら、本発明の上刃11と下刃12の間を通過する間に切断さ
れ巻取部15で巻取られる。FIG. 7 is a perspective view showing another embodiment of the present invention, showing a situation in which a standard length material is continuously cut to a specified width. The standard length material 10 is fed from the feeding portion 14 by the feed roller 13. While being fed, it is cut while passing between the upper blade 11 and the lower blade 12 of the present invention, and is wound by the winding unit 15.
本発明の実施により、アルミニウムなどの軟質金属条
材の切断に伴うかえりや切り屑の発生が防止され、切断
面の精度を含む品質信頼性の向上ならびに耐久性と作業
能率に優れた条材切断機を得ることができる。By carrying out the present invention, it is possible to prevent the occurrence of burrs and chips accompanying the cutting of soft metal strips such as aluminum, improve the quality reliability including the precision of the cut surface, and cut the strips with excellent durability and work efficiency. You can get the machine.
第１図は、本発明に係る条材切断機の斜視図、第２図
（ａ）、（ｂ）は、それぞれ条材切断中の上刃と下刃近
傍を拡大して示す正面図および側面図、第３図は、本発
明の条材切断機による条材の切断原理説明図、第４図、
第５図はアルミ条材切断時における上刃の頂角の変化お
よび下刃の平端の有無と切断力、および、同じく板厚増
加量との関係図表、第６図（ａ）、（ｂ）は、それぞれ
アルミ条の切断後の断面形状を示す正面断面図および斜
視図、第７図は、本発明の他の実施例を示す斜視図であ
る。 １……上刃、２……下刃、３……ブラケット、４……ボ
ールねじ、５……ガイド、６……アルミ条材、7a,7b…
…プーリ、８……ベルト、９……モータ、10……定尺条
材、11……上刃、12……下刃、13……送りローラ、14…
…繰出部、15……巻取部。FIG. 1 is a perspective view of a strip cutting machine according to the present invention, and FIGS. 2 (a) and 2 (b) are respectively a front view and a side view showing enlarged upper blades and lower blades in the vicinity of strip cutting, respectively. FIG. 3 is an explanatory view of the principle of cutting a strip by the strip cutter of the present invention, FIG.
FIG. 5 is a graph showing the relationship between the change in the apex angle of the upper blade, the presence or absence of the flat edge of the lower blade and the cutting force, and the amount of increase in the plate thickness when cutting the aluminum strip, and FIGS. 6 (a) and 6 (b). 7 is a front sectional view and a perspective view showing a sectional shape of the aluminum strip after cutting, and FIG. 7 is a perspective view showing another embodiment of the present invention. 1 ... upper blade, 2 ... lower blade, 3 ... bracket, 4 ... ball screw, 5 ... guide, 6 ... aluminum strip, 7a, 7b ...
... Pulley, 8 ... Belt, 9 ... Motor, 10 ... Strip material, 11 ... Upper blade, 12 ... Lower blade, 13 ... Feed roller, 14 ...
... Pay-out section, 15 ... Rewind section.
Claims (1)
と、先端に平坦部が形成された実質的に台形状の外周縁
を備え回転自在な円盤状下刃と、前記円盤状上刃の外周
縁と前記円盤状下刃の外周縁とが同一平面内で外接する
ように保持する手段と、前記円盤状上刃および円盤状下
刃が前記外接状態を保持した状態で前記条材を前記円盤
状上刃および円盤状下刃の間に導入して直線移動させる
手段を有し、前記円盤状上刃が前記条材の板厚の実質的
に上半分を切断し、前記円盤状下刃が前記条材の実質的
に下半分を切断し、前記条材が前記条材がその板厚の中
心近傍で切断されるよう構成されたことを特徴とする条
材切断機。1. A rotatable disk-shaped upper blade having a sharp outer peripheral edge, a rotatable disk-shaped lower blade having a substantially trapezoidal outer edge having a flat portion formed at a tip, and the disk-shaped lower blade. Means for holding the outer peripheral edge of the upper blade and the outer peripheral edge of the disc-shaped lower blade so as to circumscribe in the same plane; and Means for introducing a material between the disc-shaped upper blade and the disc-shaped lower blade and moving the disc linearly, wherein the disc-shaped upper blade cuts a substantially upper half of the thickness of the strip material, A strip-shaped cutting machine, wherein a strip-shaped lower blade cuts substantially the lower half of the strip, and the strip is configured to cut the strip near the center of its plate thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1266124A JP2667915B2 (en) | 1989-10-16 | 1989-10-16 | Strip cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1266124A JP2667915B2 (en) | 1989-10-16 | 1989-10-16 | Strip cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03131415A JPH03131415A (en) | 1991-06-05 |
| JP2667915B2 true JP2667915B2 (en) | 1997-10-27 |
Family
ID=17426662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1266124A Expired - Lifetime JP2667915B2 (en) | 1989-10-16 | 1989-10-16 | Strip cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2667915B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102380658A (en) * | 2011-10-28 | 2012-03-21 | 常州中翔机械制造有限公司 | Broach for color steel tile |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63123691A (en) * | 1986-11-11 | 1988-05-27 | 株式会社 ヤチダ | Cutter device |
| JPH0731991Y2 (en) * | 1987-08-05 | 1995-07-26 | 株式会社太平製作所 | Plate cutting device |
-
1989
- 1989-10-16 JP JP1266124A patent/JP2667915B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03131415A (en) | 1991-06-05 |
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