JPS6346185Y2 - - Google Patents
Info
- Publication number
- JPS6346185Y2 JPS6346185Y2 JP1984018659U JP1865984U JPS6346185Y2 JP S6346185 Y2 JPS6346185 Y2 JP S6346185Y2 JP 1984018659 U JP1984018659 U JP 1984018659U JP 1865984 U JP1865984 U JP 1865984U JP S6346185 Y2 JPS6346185 Y2 JP S6346185Y2
- Authority
- JP
- Japan
- Prior art keywords
- mounting shaft
- holding cylinder
- blade
- circumferential surface
- shaft body
- 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
Links
- 238000010008 shearing Methods 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 239000003921 oil Substances 0.000 description 39
- 239000002184 metal Substances 0.000 description 21
- 125000006850 spacer group Chemical group 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Details Of Cutting Devices (AREA)
- Shearing Machines (AREA)
- Accessories And Tools For Shearing Machines (AREA)
Description
【考案の詳細な説明】
a 考案の目的
(産業上の利用分野)
この考案に係る剪断機用刃物取付軸は、幅広の
金属板を複数枚の帯状金属板に切断する場合に使
用する剪断機に組み込み、金属板を切断すべき幅
に合わせて、外周面に輪状の刃物を装着するのに
使用される。[Detailed description of the invention] a. Purpose of the invention (industrial application field) The shearing tool blade mounting shaft according to this invention is suitable for shearing machines used when cutting a wide metal plate into multiple strip-shaped metal plates. It is used to attach a ring-shaped cutter to the outer circumferential surface of the metal plate according to the width to be cut.
(従来の技術)
幅広金属板を剪断機により切断し、複数枚の帯
状金属板とする場合、互いに平行に配設された2
本の取付軸の外周面に、それぞれ複数枚の輪状の
刃物を固定し、両取付軸に固定された刃物の間に
上記金属板を送り込む事により、互いに噛合する
刃物同士の間で、この金属板を切断する。(Prior art) When cutting a wide metal plate using a shearing machine to make a plurality of strip-shaped metal plates, two
By fixing a plurality of ring-shaped blades to the outer circumferential surface of each book mounting shaft, and feeding the metal plate between the blades fixed to both mounting shafts, this metal plate is inserted between the blades that mesh with each other. Cut the board.
第1図は従来の剪断機用刃物取付軸と、これに
固定された多数枚の輪状の刃物とを示している。
この剪断機は、幅Wの幅広の金属板を切断して、
幅wを有する20枚の帯状金属板とするものであ
る。先ず、この従来の剪断機用刃物取付軸に就い
て説明する。 FIG. 1 shows a conventional blade mounting shaft for a shearing machine and a large number of ring-shaped blades fixed to the shaft.
This shearing machine cuts a wide metal plate with a width of W.
There are 20 strip-shaped metal plates having a width w. First, this conventional blade mounting shaft for a shearing machine will be explained.
上下に互いに平行に配設された第一、第二の取
付軸1,2は、互いに反対方向に同速で回転出来
る様に組み合わされている。各取付軸1,2の右
端部(上下左右の方向は図面による。以下同じ。)
にはフランジ3が、左端部には雄螺子4が、それ
ぞれ形成されている。各取付軸1,2に輪状の刃
物7a,7bを装着するには、切断後の帯状金属
板の幅wと一致する長さを有する短円筒状の第一
スペーサ5と、この第一スペーサ5よりも刃物2
枚の厚さ分だけ長さが短い第二スペーサ6とを交
互に使用して、複数の刃物7a,7bの位置決め
を図ると共に、上側の取付軸1に装着した刃物7
a,7aの下端縁と下側の取付軸2に装着した刃
物7b,7bの上端縁とを噛合させている。各取
付軸1,2の左端部の雄螺子4には、ナツトを螺
合し緊締しており、各スペーサ5,6と刃物7
a,7bとは、このナツト8と上記フランジ3と
の間で強く挟持された状態となる。 First and second mounting shafts 1 and 2, which are disposed vertically and parallel to each other, are combined so that they can rotate in opposite directions at the same speed. Right end of each mounting shaft 1, 2 (up, down, left and right directions are according to the drawing. The same applies hereinafter)
A flange 3 is formed at the left end, and a male screw 4 is formed at the left end. In order to attach the ring-shaped cutters 7a and 7b to each of the mounting shafts 1 and 2, a short cylindrical first spacer 5 having a length matching the width w of the band-shaped metal plate after cutting, and this first spacer 5 Yoriyori Knife 2
A plurality of blades 7a, 7b are positioned by alternately using second spacers 6 whose length is shorter by the thickness of the blade, and the blade 7 attached to the upper mounting shaft 1
The lower edges of the blades 7a and 7a are engaged with the upper edges of the blades 7b and 7b mounted on the lower mounting shaft 2. A nut is screwed into the male screw 4 at the left end of each mounting shaft 1, 2 and tightened, and each spacer 5, 6 and cutter 7
a and 7b are tightly held between the nut 8 and the flange 3.
この為、各取付軸1,2を互いに逆方向に回転
させつつ両軸1,2の間に幅Wの金属板を送り込
むと、この金属板は刃物7a,7bの噛合部で切
断され、20枚の幅wの帯状金属板とされる。 For this reason, when a metal plate with a width W is fed between the two shafts 1 and 2 while rotating the mounting shafts 1 and 2 in opposite directions, this metal plate is cut at the meshing part of the blades 7a and 7b, and It is assumed to be a band-shaped metal plate with a width w.
ところが、以上に述べた通り構成され使用され
る、従来の剪断機用刃物取付軸に於いては、次に
述べる様な不都合を生じた。 However, the conventional blade mounting shaft for a shearing machine constructed and used as described above has the following disadvantages.
即ち、金属板を切断する幅を変える場合、各刃
物7a,7bの間隔を規制する第一、第二の両ス
ペーサ5,6の長さを変えなければならず、各種
幅の金属板切断を行なう場合、その分だけ多種類
のスペーサを用意しなければならない。 That is, when changing the width for cutting a metal plate, it is necessary to change the lengths of both the first and second spacers 5 and 6 that regulate the distance between the blades 7a and 7b, which makes it difficult to cut metal plates of various widths. If this is done, many different types of spacers must be prepared.
又、金属板の切断を円滑に行なう為には、上下
の取付軸1,2に装着した刃物7a,7bの噛合
が、定められた通り適正に行なわれる様にしなけ
ればならないが、第1図に示す様に、各取付軸
1,2に多数のスペーサ5,6や刃物7a,7b
を外嵌する場合、各部材5,6,7a,7bの寸
法誤差の累積により、上記噛合が不適正となり易
い。 In addition, in order to cut the metal plate smoothly, it is necessary to ensure that the blades 7a and 7b attached to the upper and lower mounting shafts 1 and 2 are properly engaged as specified. As shown in FIG.
When externally fitting the members 5, 6, 7a, and 7b, the above-mentioned engagement tends to be inappropriate due to the accumulation of dimensional errors of each member 5, 6, 7a, and 7b.
この様に、上下の刃物7a,7bの噛合が不適
正となつた場合、各取付軸1,2に外嵌した部材
5,6,7a,7bの間に薄肉のシム板等を挿入
して、刃物7a,7bの位置を規正する様にして
いるが、シム板挿入はナツト8の緊締前に行なわ
なければならず、ナツト緊締後に於ける刃物7
a,7bの噛合が適正となる様な厚さのシム板を
選択する事は困難で、熟練を要する作業であつ
た。 In this way, if the upper and lower blades 7a, 7b do not mesh properly, insert a thin shim plate or the like between the members 5, 6, 7a, 7b fitted onto the respective mounting shafts 1, 2. , the positions of the blades 7a and 7b are regulated, but the shim plate must be inserted before tightening the nut 8, and the position of the blade 7 after tightening the nut is
It was difficult to select a shim plate with a thickness that would allow proper meshing between a and 7b, and it was a task that required skill.
同様に、スペーサ5,6や刃物7a,7bに埃
塵等が付着し、これが刃物7a,7bの装着位置
不正を招来しない様にする為、これら各部材5,
6,7a,7bの保管等を厳重にしなければなら
ず、面倒である。 Similarly, in order to prevent dust and the like from adhering to the spacers 5 and 6 and the blades 7a and 7b, which would cause the blades 7a and 7b to be installed incorrectly, each member 5,
6, 7a, and 7b must be stored strictly, which is troublesome.
更に、刃物7a,7bを取付軸1,2に外嵌出
来る様にする為、輪状に形成された各刃物7a,
7bの内径は、上記取付軸1,2の外径に比べて
最低でも0.02〜0.03mm程度大きくしなければなら
ず、各刃物7a,7bの中心と各取付軸1,2の
中心とがその分だけずれる事が避けられない。こ
の様に刃物7a,7bの中心が取付軸1,2の回
転中心とずれると、互いに噛合する刃物7a,7
bの噛合深さが回転に伴つて変化し、金属板の切
断が円滑に行なわれ難くなる。 Furthermore, in order to enable the blades 7a, 7b to be externally fitted onto the mounting shafts 1, 2, each blade 7a, 7b is formed into a ring shape.
The inner diameter of 7b must be at least 0.02 to 0.03 mm larger than the outer diameter of the mounting shafts 1 and 2, and the center of each blade 7a and 7b and the center of each mounting shaft 1 and 2 must be It is unavoidable that there will be a difference. When the centers of the blades 7a, 7b are shifted from the rotation centers of the mounting shafts 1, 2 in this way, the blades 7a, 7 mesh with each other.
The engagement depth of b changes with rotation, making it difficult to cut the metal plate smoothly.
この様な不都合を解消する為の剪断機用刃物取
付軸として、特開昭57−114315号公報等には、中
間に位置する小径部を、この小径部の両端に位置
する大径部で挟んだ取付軸本体と、円管状で上記
刃物の内径よりも僅かに小さい外径を有し、上記
取付軸本体の大径部に外嵌される保持筒と、保持
筒内周面と取付軸本体の小径部外周面との間に形
成される密閉された隙間の内側を圧油供給手段に
連通させる通油路とから成り、隙間内への圧油の
給排に基づいて保持筒の外径を拡縮する事で、こ
の保持筒の外周面への輪状の刃物の着脱を行なわ
せる剪断機用刃物取付軸が開示されている。 In order to solve this problem, a shearing tool blade mounting shaft is proposed in Japanese Patent Application Laid-Open No. 57-114315, etc., in which a small diameter part located in the middle is sandwiched between large diameter parts located at both ends of this small diameter part. a mounting shaft body; a holding cylinder that is cylindrical and has an outer diameter slightly smaller than the inner diameter of the cutter and is fitted onto the large diameter portion of the mounting shaft body; an inner circumferential surface of the holding cylinder and the mounting shaft body; It consists of an oil passage that communicates the inside of a sealed gap formed between the outer peripheral surface of the small diameter part and the pressure oil supply means, and the outer diameter of the holding cylinder is adjusted based on the supply and discharge of pressure oil into the gap. A blade attachment shaft for a shearing machine is disclosed in which a ring-shaped blade can be attached to and removed from the outer peripheral surface of the holding cylinder by expanding and contracting the blade.
(考案が解決しようとする問題点)
ところが、上述の様な従来の油圧拡縮式の剪断
機用刃物取付軸の場合、依然として次に述べる様
な不都合を生じる。(Problems to be Solved by the Invention) However, in the case of the above-mentioned conventional hydraulic expandable shearing tool blade mounting shaft, the following disadvantages still occur.
即ち、一般に柱状物品の長さ方向に亘る剛性
は、断面積が同じとした場合、その長さの3乗に
反比例する事が知られており、本願考案の対象と
なる様な取付軸を有する剪断機により、幅の広い
帯状金属板の切断作業を行なう為、全長の大きな
刃物取付軸を造る場合、その断面積を大きくする
事で、取付軸に十分な剛性を持たせる必要があ
る。 That is, it is generally known that the rigidity of a columnar article along its length is inversely proportional to the cube of its length when the cross-sectional area is the same. When making a blade mounting shaft with a large overall length in order to cut a wide band-shaped metal plate using a shearing machine, it is necessary to increase the cross-sectional area to give the mounting shaft sufficient rigidity.
ところが、単に取付軸を構成する取付軸本体と
保持筒との断面積を大きくしたのでは、剛性の向
上と、断面積増大に伴なう重量増大による剛性向
上の必要性とが、いたちごつことなり、徒に重量
が嵩むだけで、必ずしも十分な剛性向上を図る事
が出来ない。 However, simply increasing the cross-sectional area of the mounting shaft body and the retaining tube that make up the mounting shaft would not meet the need for improved rigidity due to the increased weight that accompanies the increased cross-sectional area. In other words, the weight increases unnecessarily, and the rigidity cannot necessarily be improved sufficiently.
取付軸全体としての重量を増大させる事なく、
その長さ方向に亘る剛性を向上させる為には、互
いに同心に組み合わされる取付軸本体と保持筒と
が互いに協働し、両部材が一体となつて取付軸の
長さ方向に亘る剛性を確保する様に構成する事が
考えられるが、前記特開昭57−114315号公報に記
載されたものを始め、従来の刃物取付軸の場合、
保持筒の内周面と取付軸本体の内周面との間に存
在する隙間の為、上記両部材が一体となる事はな
く、各部材の剛性を互いに独立して向上させなけ
ればならなかつた。 Without increasing the weight of the entire mounting shaft,
In order to improve the rigidity over the length direction, the mounting shaft body and the holding cylinder, which are assembled concentrically with each other, cooperate with each other, and both members work together to ensure rigidity over the length direction of the mounting shaft. However, in the case of conventional knife mounting shafts, such as the one described in the above-mentioned Japanese Patent Application Laid-Open No. 114315/1983,
Due to the gap that exists between the inner circumferential surface of the holding cylinder and the inner circumferential surface of the mounting shaft body, the above two members are not integrated, and the rigidity of each member must be improved independently of each other. Ta.
この様な問題に就いて本考案者が研究した所、
保持筒の内周面と取付軸本体の外周面との間に形
成される隙間の幅を極く狭く(例えば20〜40μm
程度)にすれば、この隙間に圧油を送り込んだ場
合に、取付軸本体と保持筒とが一体となつた如き
剛性を得る事が出来、取付軸本体や保持筒の断面
積を特に大きくしなくても、隙間の幅が大きい場
合に比べて、大きな剛性を得る事が解つたが、単
に上記隙間の幅を狭くしただけの場合、保持筒の
外周面に着脱する為、上記隙間内に比較的粘度の
高い圧油を給排する作業に長い時間を要する様に
なつてしまう。 The inventor has researched this problem, and found that
The width of the gap formed between the inner circumferential surface of the holding cylinder and the outer circumferential surface of the mounting shaft body should be kept extremely narrow (for example, 20 to 40 μm).
If the pressure oil is sent into this gap, it will be possible to obtain the rigidity as if the mounting shaft body and holding cylinder were integrated, and the cross-sectional area of the mounting shaft body and holding cylinder could be particularly large. It was found that greater rigidity can be obtained even if the width of the gap is not large compared to when the width of the gap is large, but if the width of the gap is simply narrowed, there is The work of supplying and discharging relatively high viscosity pressure oil ends up taking a long time.
本願考案はこの様な不都合を解消し、隙間の幅
を極く小さくして、重量を増大させる事なく、刃
物取付軸の長さ方向に亘る剛性を向上させた場合
に於いても、この隙間内に圧油を給排する作業を
短時間で行なえ、刃物取付軸の外周面に刃物を着
脱する作業に要する時間が徒に長くならない様に
したものである。 The invention of the present application solves this inconvenience, and even when the width of the gap is made extremely small and the rigidity in the length direction of the blade mounting shaft is improved without increasing the weight, this gap The work of supplying and discharging pressure oil inside the blade can be carried out in a short time, and the time required to attach and detach the blade to the outer peripheral surface of the blade mounting shaft is prevented from becoming unnecessarily long.
b 考案の構成
(問題を解決する為の手段)
本考案の剪断機用刃物取付軸は、中間に位置
し、ほぼその全長に亘り外周面に螺旋溝を形成し
た小径部を両端の大径部で挟んだ取付軸本体に、
円管状の保持筒を外嵌し、この保持筒の両端部内
周面と上記取付軸本体の大径部外周面との間の油
密保持を図つている。b. Structure of the invention (Means for solving the problem) The blade mounting shaft for a shearing machine of the invention has a small diameter part located in the middle and having a spiral groove formed on the outer circumferential surface over almost its entire length, and a large diameter part at both ends. On the mounting shaft body sandwiched between
A cylindrical holding cylinder is fitted onto the outside to maintain oil tightness between the inner circumferential surface of both ends of the holding cylinder and the outer circumferential surface of the large diameter part of the mounting shaft body.
取付軸本体の内側に設けられ、保持筒内周面と
取付軸本体の小径部外周面との間に形成される、
密閉された隙間に対向する上記螺旋溝の内側に一
端を開口した通油路の他端は、圧油供給手段に通
じさせ、螺旋溝を介して、上記隙間に圧油を給排
出来る様にしている。 Provided inside the mounting shaft body, and formed between the inner circumferential surface of the holding cylinder and the outer circumferential surface of the small diameter part of the mounting shaft body.
The other end of the oil passage, which has one end open inside the spiral groove facing the sealed gap, is communicated with a pressure oil supply means so that pressure oil can be supplied to and discharged from the gap through the spiral groove. ing.
(作用)
上述の様に構成される本考案の剪断機用取付軸
に輪状の刃物を装着する場合、取付軸の小径部外
周面と保持筒の内周面との間の隙間内に圧油を送
り込む以前に、保持筒の外径よりも僅かに大きな
内径を有する刃物を、この保持筒に外嵌し、各刃
物を所定位置に移動させた後、上記通油路と螺旋
溝とを介して隙間内に圧油を送り込む。(Function) When a ring-shaped cutter is attached to the shearing machine mounting shaft of the present invention constructed as described above, pressure oil is applied to the gap between the outer circumferential surface of the small diameter part of the mounting shaft and the inner circumferential surface of the holding cylinder. Before sending in the oil, cutters having an inner diameter slightly larger than the outside diameter of the holding cylinder are fitted onto the holding cylinder, and after each blade is moved to a predetermined position, the oil is passed through the oil passage and the spiral groove. to send pressure oil into the gap.
この圧油送り込みにより、円管状の保持筒が膨
らみ、この保持筒の外周面と各刃物の内周縁とが
強く当接し、各刃物が保持筒に対してしつかりと
固定される。 This pressurized oil supply causes the cylindrical retaining cylinder to expand, causing the outer circumferential surface of the retaining cylinder to come into firm contact with the inner circumferential edges of the blades, thereby firmly fixing each blade to the retaining cylinder.
本考案の剪断機用刃物取付軸の場合、隙間内へ
の圧油の給排は、小径部のほぼ全周に亘つて形成
された螺旋溝を介して行なう為、上記隙間の幅が
極く狭い場合であつても、圧油の給排を短時間で
行なう事が出来る。 In the case of the blade mounting shaft for a shearing machine of the present invention, pressure oil is supplied and discharged into the gap through the spiral groove formed almost all around the small diameter part, so the width of the gap is extremely small. Even in narrow spaces, pressure oil can be supplied and discharged in a short time.
(実施例)
次に、図示の実施例を説明しつつ、本考案を更
に詳しく説明する。(Example) Next, the present invention will be explained in more detail while explaining the illustrated embodiment.
第2図は本考案の剪断機用刃物取付軸の全体構
成を示している。円柱状の取付軸本体9には、第
1図に示した従来の取付軸の様なフランジ3や雄
螺子4は設けられておらず、代りに中間部に形成
された小径部10と、この小径部10を挟む位置
に形成された大径部11,11とが設けられてい
る。小径部10の外周面には、断面矩形又は台形
の螺旋溝12を削設し、この小径部10を雄螺子
状に形成している。 FIG. 2 shows the overall structure of the blade mounting shaft for a shearing machine according to the present invention. The cylindrical mounting shaft main body 9 is not provided with a flange 3 or a male screw 4 like the conventional mounting shaft shown in FIG. Large diameter portions 11, 11 are provided at positions sandwiching the small diameter portion 10. A spiral groove 12 having a rectangular or trapezoidal cross section is cut into the outer peripheral surface of the small diameter portion 10, and the small diameter portion 10 is formed into a male screw shape.
この様な小径部10を挟む大径部11,11の
外周面には、鋼材等により円管状に形成された保
持筒13が密に外嵌されている。この保持筒13
の両端部は、第3図に詳示する様に、皿螺子14
によつて上記大径部11,11に固定されてお
り、この大径部11,11の外周面に形成した凹
溝15′にOリング16を嵌着して、大径部11,
11の外周面と保持筒13の両端部内周面との間
の油密保持を図つている。 A holding cylinder 13 formed in a cylindrical shape made of steel or the like is tightly fitted onto the outer peripheral surfaces of the large diameter parts 11, 11 that sandwich the small diameter part 10 therebetween. This holding cylinder 13
As shown in detail in FIG. 3, both ends of the countersunk screw 14
The large diameter parts 11, 11 are fixed to the large diameter parts 11, 11 by fitting an O-ring 16 into a groove 15' formed on the outer peripheral surface of the large diameter parts 11, 11.
11 and the inner circumferential surfaces of both ends of the holding cylinder 13 are kept oil-tight.
螺旋溝12の底面で、小径部10の両端部に位
置する部分には、それぞれ通油路17,17の一
端が開口している。この通油路17,17は、取
付軸本体9の小径部10の外周面と保持筒13の
内周面との間に形成される、円筒状の隙間18に
圧油を送給し、保持筒13を膨らませるもので、
各通油路17,17の他端は、第4図に示す様な
圧油供給手段19に通じている。但し、取付軸の
長さ等の条件により、通油路17と圧油供給手段
とは、1組だけ設ければ足りる場合もある。 On the bottom surface of the spiral groove 12, one end of the oil passages 17, 17 is opened at the portions located at both ends of the small diameter portion 10, respectively. The oil passages 17, 17 supply pressurized oil to a cylindrical gap 18 formed between the outer circumferential surface of the small diameter portion 10 of the mounting shaft body 9 and the inner circumferential surface of the holding cylinder 13. It inflates the cylinder 13,
The other end of each oil passage 17, 17 communicates with a pressure oil supply means 19 as shown in FIG. However, depending on conditions such as the length of the mounting shaft, it may be sufficient to provide only one set of the oil passage 17 and the pressure oil supply means.
第4図に示した圧油供給手段19は、取付軸本
体9の端面に、ピストン20と、鋼球21を介し
てこのピストン20を押す螺子棒22とを設けた
ものである。即ち、取付部本体9の端面には、奥
部にシリンダ部23を、開口部近くに雌螺子部2
4を、それぞれ形成した円孔25を設け、この円
孔25のシリンダ部23にピストン20を遊嵌
し、雌螺子部24に螺子棒先端の雄螺子部22a
を螺合している。上記通油路17の端部は、この
円孔25のシリンダ部23の奥面に開口してお
り、第4図でピストン20が右行した場合に、前
記した保持筒内側の隙間18内に圧油を送り込め
る様にしている。雄螺子部22aを上記雌螺子部
24に螺合させた螺子棒22の端部で、円孔25
ら突出した部分には角柱部を形成し、この螺子棒
22をスパナ等の工具により強力に回転させられ
る様にしている。 The pressure oil supply means 19 shown in FIG. 4 is provided with a piston 20 and a screw rod 22 that pushes the piston 20 through a steel ball 21 on the end face of the mounting shaft body 9. That is, on the end surface of the attachment main body 9, a cylinder part 23 is provided in the deep part, and a female screw part 2 is provided near the opening.
A circular hole 25 is provided in which the piston 20 is loosely fitted into the cylinder portion 23 of the circular hole 25, and the male screw portion 22a at the tip of the screw rod is inserted into the female screw portion 24.
are screwed together. The end of the oil passage 17 opens at the inner surface of the cylinder portion 23 of the circular hole 25, and when the piston 20 moves to the right in FIG. It is designed to allow pressure oil to be sent. A circular hole 25 is formed at the end of the threaded rod 22 with the male threaded part 22a screwed into the female threaded part 24.
A prismatic portion is formed on the protruding portion, and the screw rod 22 can be powerfully rotated with a tool such as a spanner.
この様に構成される為、螺子棒22を、スパナ
等により回転させつつ第4図右方に移動させ、鋼
球21を介してピストン20を右行させると、シ
リンダ部23内の油が通油路17、螺旋溝12を
介して保持筒13の内側の隙間18内に進入し、
この保持筒13を内側から外に向けて押圧する
る。この際、油圧は最大数百Kg/cm2に達する為、
金属製の保持筒13の外径を少し拡径する。 Because of this structure, when the screw rod 22 is rotated with a spanner or the like and moved to the right in FIG. It enters the gap 18 inside the holding cylinder 13 via the oil passage 17 and the spiral groove 12,
This holding cylinder 13 is pressed from inside to outside. At this time, the hydraulic pressure reaches a maximum of several hundred kg/ cm2 , so
The outer diameter of the metal holding cylinder 13 is slightly expanded.
この際、保持筒13の内側に位置する小径部1
0の外周面には螺旋溝12が設けられている為、
圧油供給手段19により隙間18に送り込まれる
圧油の圧力は、保持筒13の全内周面に亘り均等
に加わり、この保持筒13を短時間で、全長に亘
り均一に拡径する。 At this time, the small diameter portion 1 located inside the holding cylinder 13
Since the spiral groove 12 is provided on the outer peripheral surface of 0,
The pressure of the pressure oil fed into the gap 18 by the pressure oil supply means 19 is applied evenly over the entire inner circumferential surface of the holding cylinder 13, thereby expanding the diameter of the holding cylinder 13 uniformly over its entire length in a short time.
次に、この様に構成される本考案の剪断機用刃
物取付軸に、輪状の刃物を着脱する手順に就いて
説明する。 Next, a procedure for attaching and detaching a ring-shaped cutter to and from the shear cutter attachment shaft of the present invention constructed in this manner will be explained.
先ず、取付軸に輪状の刃物を装着する場合、螺
子棒22を暖めてピストン20を左行させてお
き、保持筒13の内側に圧油を送り込まない状態
としておく。この状態で保持筒13の外径は、輪
状の刃物(第1図の符号7a,7b参照)の内径
よりも僅かに小さい為、この刃物を保持筒13の
任意位置に容易に外嵌する事が出来る。 First, when attaching a ring-shaped cutter to the mounting shaft, the screw rod 22 is warmed, the piston 20 is moved to the left, and no pressure oil is fed into the inside of the holding cylinder 13. In this state, the outer diameter of the holding tube 13 is slightly smaller than the inner diameter of the ring-shaped cutter (see symbols 7a and 7b in FIG. 1), so this cutter can be easily fitted to any position on the holding tube 13. I can do it.
各刃物の位置が定まつたならば、スパナ等の工
具により螺子棒22を回転させ、ピストン20を
第4図で右方に移動させて、シリンダ部23内で
油圧を発生させ、この油圧を、通油路17を介し
て保持筒内側の隙間18内に送り込む。 Once the position of each blade has been determined, the screw rod 22 is rotated using a tool such as a spanner, and the piston 20 is moved to the right in FIG. 4 to generate hydraulic pressure within the cylinder section 23. , into the gap 18 inside the holding cylinder through the oil passage 17.
この為保持筒13が膨らんで、この保持筒13
の外周面と各刃物の内周縁とが強く当接し、各刃
物が保持筒13の外周面にしつかりと固定され
る。 As a result, the retaining tube 13 expands, and
The outer peripheral surface of the retaining cylinder 13 and the inner peripheral edge of each blade are firmly abutted against each other, and each blade is firmly fixed to the outer peripheral surface of the retaining cylinder 13.
保持筒13から刃物を取り外す場合は、上記し
た装着作業の場合と逆に、螺子棒22を暖め、隙
間18内の油圧を解除して保持筒13を縮径させ
てから刃物を取り外せば、容易に取り外す事が出
来る。 When removing the knife from the holding cylinder 13, it is easy to remove the knife after warming the screw rod 22 and releasing the hydraulic pressure in the gap 18 to reduce the diameter of the holding cylinder 13, contrary to the above-mentioned installation work. It can be removed.
上述の様に、保持筒13の外周面に刃物を着脱
する為、隙間18内に圧油を給排する場合、この
給排は、小径部10のほぼ全周に亘つて形成され
た螺旋溝12を介して行なわれる為、上記隙間1
8の幅が極く狭い場合であつても、圧油の給排を
短時間で行なう事が出来る。 As mentioned above, when supplying and discharging pressure oil into the gap 18 in order to attach and detach a cutter to and from the outer circumferential surface of the holding cylinder 13, this supply and discharge is carried out through the spiral groove formed over almost the entire circumference of the small diameter portion 10. 12, so the above gap 1
Even if the width of 8 is extremely narrow, pressure oil can be supplied and discharged in a short time.
従つて、隙間18の幅を狭くして、取付軸の長
さ方向に亘る剛性を向上させた場合に於いても、
刃物の着脱作業に要する時間が徒に長くなる事が
ない。 Therefore, even if the width of the gap 18 is narrowed to improve the rigidity over the length of the mounting shaft,
The time required to attach and detach the blade does not become unnecessarily long.
次に、本考案者が行なつた実験に就いて説明す
る。この実験に於いては、保持筒13として鋼材
製で内径150mm、肉厚12.5mmのものを使用し、取
付軸本体外周の小径部10の長さは1360mmとし
て、第4図に示した様な圧油供給手段により、こ
の保持筒13の内側の隙間18内に250Kg/cm2の
油圧を加えた。保持筒13の外周面に固定する刃
物7の内径は、縮径時に於ける保持筒13の外径
よりも0.02〜0.03mm大きくした。この様な条件
で、前述の手順により保持筒13の外周面に4個
の刃物7,7を装着した所、隙間18への油圧付
加後は、いずれの刃物7,7も保持筒13の外周
面にがたつきなくしつかりと固定された。 Next, the experiments conducted by the present inventor will be explained. In this experiment, a steel holding cylinder 13 with an inner diameter of 150 mm and a wall thickness of 12.5 mm was used, and the length of the small diameter part 10 on the outer periphery of the mounting shaft body was 1360 mm, as shown in Fig. 4. A hydraulic pressure of 250 kg/cm 2 was applied to the gap 18 inside the holding cylinder 13 by the pressure oil supply means. The inner diameter of the cutter 7 fixed to the outer peripheral surface of the holding cylinder 13 was set to be 0.02 to 0.03 mm larger than the outer diameter of the holding cylinder 13 when the diameter was reduced. Under these conditions, when the four blades 7, 7 are attached to the outer circumferential surface of the holding cylinder 13 according to the procedure described above, after applying hydraulic pressure to the gap 18, all the blades 7, 7 are attached to the outer circumference of the holding cylinder 13. It was firmly fixed to the surface without wobbling.
更に、この様な刃物7,7を固定した本考案の
刃物取付軸と、第1図に示した様にスペーサを介
して刃物を固定した従来の刃物取付軸とを第6図
に示す様に組合せ、厚さ0.4mmのステンレス鋼板
と、厚さ0.5mmの珪素鋼板と、厚さ0.6mmの冷間圧
延鋼板との切断作業を行なつた所、いずれの場合
も、刃物同士が滑る事なく良好な切断作業を行な
う事が出来た。 Furthermore, as shown in FIG. 6, the blade mounting shaft of the present invention in which such blades 7, 7 are fixed, and the conventional blade mounting shaft in which the blades are fixed via a spacer as shown in FIG. When cutting a combination of 0.4 mm thick stainless steel plate, 0.5 mm thick silicon steel plate, and 0.6 mm thick cold rolled steel plate, the blades did not slip against each other in all cases. I was able to perform a good cutting job.
c 考案の効果
本考案の剪断機用刃物取付軸は、以上に述べた
通り構成され作用する為、刃物を所定場所に固定
する為のスペーサ等が不要となり、各部材の寸法
誤差等を考慮する事なく刃物を任意位置に容易に
装着する事が出来、刃物取付軸の中心と刃物の中
心とが一致する為、刃物同士の噛合が常に一定深
さで行なわれ、良好な切断作業を行なえると言つ
た従来からの油圧拡縮式剪断機用刃物取付軸の有
する効果の他、次に述べる様な優れた効果を得ら
れる。c. Effects of the invention Since the blade mounting shaft for a shearing machine of the present invention is constructed and operates as described above, there is no need for a spacer etc. to fix the blade in a predetermined place, and dimensional errors of each member are taken into consideration. The blade can be easily installed in any position without any trouble, and since the center of the blade mounting shaft and the center of the blade match, the blades always mesh at a constant depth, allowing for good cutting work. In addition to the effects of the conventional blade mounting shaft for a hydraulic expandable shearing machine, the following excellent effects can be obtained.
即ち、保持筒の内周面と取付軸本体の外周面と
の間に形成される隙間の幅を極く狭くする事によ
り、取付軸本体や保持筒の断面積を特に大きくし
なくても、空隙の幅が大きい場合に比べて、大き
な剛性を得る様に出来、この場合に於いても、こ
の隙間内に圧油を給排する作業を短時間で行な
え、刃物取付軸の外周面に刃物を着脱する作業に
要する時間が徒に長くなる事がなくなつて、帯状
金属板の切断を効率良く行なう事が出来る。 In other words, by making the width of the gap formed between the inner circumferential surface of the holding cylinder and the outer circumferential surface of the mounting shaft body extremely narrow, the cross-sectional area of the mounting shaft body and the holding cylinder can be easily It is possible to obtain greater rigidity than when the width of the gap is large, and even in this case, the work of supplying and discharging pressure oil into this gap can be done in a short time, and the blade can be attached to the outer peripheral surface of the blade mounting shaft. The time required for attaching and detaching the metal plate does not become unnecessarily long, and the band-shaped metal plate can be cut efficiently.
第1図は従来の剪断機用刃物取付軸の正面図、
第2図は本考案の実施例を示す刃物取付軸の部分
縦断正面図、第3図は第2図の中央部分拡大図、
第4図は第2図の左部拡大図、第5図は刃物を装
着した状態を示す部分縦断正面図、第6図は使用
状態を示す正面図である。
1:取付軸、2:取付軸、3:フランジ、4:
雄螺子、5:第一スペーサ、6:第二スペーサ、
7,7a,7b:刃物、8:ナツト、9:取付軸
本体、10:小径部、11:大径部、12:螺旋
溝、13:保持筒、14:皿螺子、15:凹溝、
16:Oリング、17:通油路、18:隙間、1
9:圧油供給手段、20:ピストン、21:鋼
球、22:螺子棒、22a:雄螺子部、23:シ
リンダ部、24:雌螺子部、25:円孔。
Figure 1 is a front view of a conventional shearing machine blade mounting shaft.
Fig. 2 is a partial longitudinal sectional front view of a blade mounting shaft showing an embodiment of the present invention, Fig. 3 is an enlarged view of the central part of Fig. 2,
FIG. 4 is an enlarged view of the left side of FIG. 2, FIG. 5 is a partially vertical front view showing the state in which the cutter is attached, and FIG. 6 is a front view showing the state in use. 1: Mounting shaft, 2: Mounting shaft, 3: Flange, 4:
Male screw, 5: first spacer, 6: second spacer,
7, 7a, 7b: cutter, 8: nut, 9: mounting shaft body, 10: small diameter part, 11: large diameter part, 12: spiral groove, 13: holding cylinder, 14: countersunk screw, 15: concave groove,
16: O-ring, 17: Oil passage, 18: Gap, 1
9: Pressure oil supply means, 20: Piston, 21: Steel ball, 22: Threaded rod, 22a: Male threaded portion, 23: Cylinder portion, 24: Female threaded portion, 25: Circular hole.
Claims (1)
装着した輪状の刃物の外周縁同士を噛合させ、互
いに逆方向に回転する両取付軸の間に挿入した板
材を切断する剪断機用の刃物取付軸であつて、中
間に位置し、ほぼその全長に亘り外周面に螺旋溝
を形成した小径部を、この小径部の両端に位置す
る大径部で挟んだ取付軸本体と、円管状で上記刃
物の内径よりも僅かに小さい外径を有し、上記取
付軸本体の大径部に外嵌される保持筒と、保持筒
内周面と取付軸本体の小径部外周面との間に形成
される密閉された隙間に対向する上記螺旋溝の内
側を圧油供給手段に連通させる通油路とよりなる
剪断機用刃物取付軸。 A shearing machine that cuts a plate material inserted between two mounting shafts that rotate in opposite directions by meshing the outer periphery of a ring-shaped blade attached to the outer peripheral surface of two mounting shafts that are arranged parallel to each other. The blade mounting shaft has a small diameter part located in the middle with a spiral groove formed on the outer circumferential surface over almost its entire length, and a mounting shaft body sandwiched between large diameter parts located at both ends of this small diameter part, and a circular tubular shape. a holding cylinder which has an outer diameter slightly smaller than the inner diameter of the cutter and is fitted onto the large diameter portion of the mounting shaft body; and between the inner circumferential surface of the holding cylinder and the outer circumferential surface of the small diameter portion of the mounting shaft body. A blade mounting shaft for a shearing machine comprising an oil passage that communicates the inside of the spiral groove facing a sealed gap formed in the spiral groove with a pressure oil supply means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1865984U JPS60131319U (en) | 1984-02-14 | 1984-02-14 | Blade mounting shaft for shearing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1865984U JPS60131319U (en) | 1984-02-14 | 1984-02-14 | Blade mounting shaft for shearing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60131319U JPS60131319U (en) | 1985-09-03 |
JPS6346185Y2 true JPS6346185Y2 (en) | 1988-12-01 |
Family
ID=30507501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1865984U Granted JPS60131319U (en) | 1984-02-14 | 1984-02-14 | Blade mounting shaft for shearing machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60131319U (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010269401A (en) * | 2009-05-21 | 2010-12-02 | Sanno Tekko Kk | Slitter device |
WO2011068082A1 (en) * | 2009-12-04 | 2011-06-09 | 白山工業株式会社 | Slitter device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57114315A (en) * | 1980-12-29 | 1982-07-16 | Kawasaki Steel Corp | Slitting cutter assembly for cutting-off to less width without causing eccentricity and deflection |
-
1984
- 1984-02-14 JP JP1865984U patent/JPS60131319U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57114315A (en) * | 1980-12-29 | 1982-07-16 | Kawasaki Steel Corp | Slitting cutter assembly for cutting-off to less width without causing eccentricity and deflection |
Also Published As
Publication number | Publication date |
---|---|
JPS60131319U (en) | 1985-09-03 |
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