JP6016186B2 - Bar cutting device - Google Patents

Bar cutting device Download PDF

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JP6016186B2
JP6016186B2 JP2012092271A JP2012092271A JP6016186B2 JP 6016186 B2 JP6016186 B2 JP 6016186B2 JP 2012092271 A JP2012092271 A JP 2012092271A JP 2012092271 A JP2012092271 A JP 2012092271A JP 6016186 B2 JP6016186 B2 JP 6016186B2
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rod
shaped body
support member
cutting blade
hole
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JP2013220494A (en
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小池　和權
和權 小池
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Mitsubishi Chemical Corp
Mitsubishi Rayon Co Ltd
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Mitsubishi Chemical Corp
Mitsubishi Rayon Co Ltd
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Description

本発明は、棒状体切断装置に関し、詳細には、ロッドレンズ、光ファイバーのような棒状体を切断するための切断装置に関する。   The present invention relates to a rod-shaped body cutting device, and more particularly to a cutting device for cutting a rod-shaped body such as a rod lens or an optical fiber.

連続的に製造される屈折率分布型ロッドレンズ、光ファイバー等の小径の棒状体の製造では、連続的に製造される棒状体を順次、所定長に切断していく棒状体切断工程が必要とされる場合がある。   In the manufacture of continuously manufactured refractive index distribution type rod lenses and small-diameter rods such as optical fibers, a rod-shaped body cutting step is required in which the continuously manufactured rods are sequentially cut to a predetermined length. There is a case.

このような切断として、上流の製造装置から連続的に繰り出されてくる棒状体を、「まな板」に上方から切断刃を降下させることによって切断する手法がある。
しかしながら、この方法では、棒状体は、降下する切断刃の下方に生じる割れ目によって、割れながら切断（割断）されるため、切断面が平滑な面とならず、切断された棒状体は所望の性能を発揮できないという問題があった。さらにこの方法は微小破断くずが発生し、次工程の精密配列工程に支障をきたすという問題があった。 As such cutting, there is a method of cutting a rod-like body continuously drawn from an upstream manufacturing apparatus by lowering a cutting blade from above to a “chopping board”.
However, in this method, the rod-shaped body is cut (cleaved) while being cracked by a crack generated below the lowering cutting blade, so that the cut surface does not become a smooth surface, and the cut rod-shaped body has the desired performance. There was a problem that could not be demonstrated. Furthermore, this method has a problem that micro-breaking scraps are generated, which hinders the next precise alignment process.

また、ガイド本体に形成されたガイド孔を通過させた光ファイバーを、ガイド本体に沿って摺動する切断刃と、切断刃の下方に配置された支持刃との間で切断する切断装置が提案されている。（特許文献１参照）。   Also proposed is a cutting device that cuts an optical fiber that has passed through a guide hole formed in a guide body between a cutting blade that slides along the guide body and a support blade that is disposed below the cutting blade. ing. (See Patent Document 1).

特開２００４−３０６２０４号公報JP 2004-306204 A

特許文献１の切断装置は、棒状体である光ファイバーを、上下２枚の刃（切断刃と支持刃）の間で切断する装置であるため、切断時に、切断刃と支持刃との刃先が上下に整列するように正確に位置決めされている必要がある。
しかしながら、所望の精度で、この位置決めを行うことは容易ではなく、位置決めが適正に行われていないと、切断された棒状体の切断面に「ささくれ」や、「欠け」が生じるという問題、さらに、切断時に棒状体が跳ねるという問題があった。切断すべき光ファイバーの本数が増加するに従い調整はさらに困難なものになる。 The cutting device of Patent Document 1 is a device that cuts an optical fiber, which is a rod-shaped body, between two upper and lower blades (cutting blade and support blade). Must be accurately positioned to align.
However, it is not easy to perform this positioning with the desired accuracy, and if positioning is not performed properly, there will be problems such as "breaking" and "chips" on the cut surface of the cut rod-shaped body, and There was a problem that the rod-like body bounces during cutting. Adjustment becomes more difficult as the number of optical fibers to be cut increases.

本発明は、このような問題を解決するためになされたものであり、簡単な機構で、切断面に「ささくれ」や「欠け」等が生じない棒状体切断装置を提供することを目的としている。   The present invention has been made to solve such a problem, and an object of the present invention is to provide a rod-like body cutting device that does not cause “breaking” or “chip” on a cutting surface with a simple mechanism. .

本発明によれば、
連続的に搬送されてくる棒状体を切断する棒状体切断装置であって、
搬送方向に向かって延びる貫通孔を有する支持部材と、
前記支持部材の前記棒状体搬送方向下流側に配置され、該支持部材の下流側面に沿って前記貫通孔を横切るように摺動し、前記貫通孔の開口端との間に棒状体を挟持して切断する切断刃と、を備え、
前記支持部材が複数、設けられ、複数の棒状体が同時に切断される、
ことを特徴とする棒状体切断装置が提供される。 According to the present invention,
A rod-shaped body cutting device for cutting a rod-shaped body that is continuously conveyed,
A support member having a through-hole extending in the transport direction;
The support member is disposed downstream of the support member in the conveying direction of the rod, slides across the through hole along the downstream side surface of the support member, and sandwiches the rod member with the open end of the through hole. and a cutting blade for cutting Te,
A plurality of the support members are provided, and a plurality of rod-like bodies are cut simultaneously.
A rod-like body cutting device is provided.

このような構成によれば、切断刃の位置決めが容易であり、簡単な機構で、切断面に「ささくれ」や「欠け」等が生じない棒状体の切断が可能となる。   According to such a configuration, it is easy to position the cutting blade, and it is possible to cut a rod-shaped body that does not cause “breaking” or “chip” on the cutting surface with a simple mechanism.

本発明の他の好ましい態様によれば、
前記貫通孔は、前記棒状体の搬送方向下流に向かって先細りしている。
このような構成によれば、連続的に搬送されてくる棒状体が確実に支持部材の貫通孔に通される。さらに切断後の棒状体の先端部分が刃物に引っかかり棒状体の搬送トラブルを引き起こす懸念が無い。 According to another preferred embodiment of the invention,
The through hole tapers toward the downstream side in the transport direction of the rod-shaped body.
According to such a structure, the rod-shaped body conveyed continuously is reliably passed through the through hole of the support member. Furthermore, there is no concern that the tip of the rod-shaped body after cutting will be caught by the blade and cause trouble in conveying the rod-shaped body.

本発明の他の好ましい態様によれば、前記切断刃が、平刃である。   According to another preferred aspect of the present invention, the cutting blade is a flat blade.

本発明の他の好ましい態様によれば、
前記切断刃が、前記棒状体が通る貫通孔を備え、該貫通孔が前記支持部材の貫通孔と整列した状態で、前記棒状体が前記支持部材の貫通孔から該切断刃の貫通孔に挿通され、該切断刃が前記支持部材の下流側面に沿って前記貫通孔を横切るように摺動することによって、前記切断刃の貫通孔が前記支持部材の下流側面によって閉鎖され、前記棒状体の切断が行われる。 According to another preferred embodiment of the invention,
The cutting blade has a through-hole through which the rod-shaped body passes, and the rod-shaped body is inserted from the through-hole of the support member into the through-hole of the cutting blade in a state where the through-hole is aligned with the through-hole of the support member. When the cutting blade slides along the downstream side surface of the support member so as to cross the through hole, the through hole of the cutting blade is closed by the downstream side surface of the support member, and the rod-shaped body is cut. Is done.

本発明の他の好ましい態様によれば、
前記切断刃の貫通孔が、前記棒状体の搬送方向上流側に向かって先細りしている。 According to another preferred embodiment of the invention,
The through hole of the cutting blade tapers toward the upstream side in the transport direction of the rod-shaped body.

本発明の他の好ましい態様によれば、
前記切断刃の貫通孔の前記搬送方向上流側の開口部の直径が、前記支持部材の前記搬送方向下流側の開口部の直径より大径である。 According to another preferred embodiment of the invention,
The diameter of the opening on the upstream side in the transport direction of the through hole of the cutting blade is larger than the diameter of the opening on the downstream side in the transport direction of the support member.

本発明の他の好ましい態様によれば、
前記支持部材を前記切断刃に向けて付勢する付勢手段を備えている。
このような構成によれば、切断刃が確実に支持部材の下流側面に当接するので、支持部材と切断刃を確実に所定の相対位置関係に配置することができる。 According to another preferred embodiment of the invention,
Biasing means for urging the support member toward the cutting blade is provided.
According to such a configuration, since the cutting blade reliably contacts the downstream side surface of the support member, the support member and the cutting blade can be reliably arranged in a predetermined relative positional relationship.

本発明の他の好ましい態様によれば、
前記支持部材の下流側面に沿った前記切断刃の摺動を案内する案内手段を備えている。
このような構成によれば、支持部材と切断刃と相対移動の軌跡が一定になり、支持部材と切断刃を確実に所定の相対位置関係に配置することができる。 According to another preferred embodiment of the invention,
Guiding means for guiding the sliding of the cutting blade along the downstream side surface of the support member is provided.
According to such a configuration, the locus of relative movement between the support member and the cutting blade becomes constant, and the support member and the cutting blade can be reliably arranged in a predetermined relative positional relationship.

このような構成を有する本発明によれば、刃先の精密な調整を必要とせず、簡単な機構で、切断面に「ささくれ」や「欠け」さらに「微小破断くず」等が生じない複数の棒状体切断方法および装置が提供される。   According to the present invention having such a configuration, a plurality of rod shapes that do not require precise adjustment of the cutting edge and that do not cause “breaking”, “chips”, or “micro-breaking waste” on the cut surface with a simple mechanism. A body cutting method and apparatus are provided.

本発明の第１の実施形態の棒状体切断装置における切断刃と支持部材との間で切断される状態を模式的に示す断面図である。It is sectional drawing which shows typically the state cut | disconnected between the cutting blade and support member in the rod-shaped body cutting device of the 1st Embodiment of this invention. 本実施形態の棒状体切断装置で使用される支持部材を裏面側から見た斜視図である。It is the perspective view which looked at the supporting member used with the rod-shaped body cutting device of this embodiment from the back side. 図２の支持部材を表面側から見た斜視図である。It is the perspective view which looked at the supporting member of FIG. 2 from the surface side. 支持部材を所定位置に保持する保持具の表面側からの斜視図である。It is a perspective view from the surface side of the holder which hold | maintains a supporting member in a predetermined position. 保持具の裏面側からの斜視図である。It is a perspective view from the back surface side of a holder. 切断刃が上方位置に配置された状態を示す図面である。It is drawing which shows the state by which the cutting blade is arrange | positioned in the upper position. 切断刃および保持具に支持された支持部材を示す、棒状体切断時の棒状体切断装置の状態を模式的に示す断面図である。It is sectional drawing which shows typically the state of the rod-shaped body cutting device at the time of rod-shaped body cutting | disconnection which shows the supporting member supported by the cutting blade and the holder. 本発明の第２の実施形態の棒状体切断装置で使用される切断刃の表面側からの斜視図である。It is a perspective view from the surface side of the cutting blade used with the rod-shaped body cutting device of the 2nd Embodiment of this invention. 図７の切断刃の裏面側からの斜視図である。It is a perspective view from the back surface side of the cutting blade of FIG. 第２の実施形態において、上方位置に配置された切断刃と支持部材の位置関係を示す模式的な断面図である。In 2nd Embodiment, it is typical sectional drawing which shows the positional relationship of the cutting blade arrange | positioned in the upper position, and a supporting member. 第２の実施形態において、下方位置に配置された切断刃と支持部材の位置関係を示す模式的な断面図である。In 2nd Embodiment, it is typical sectional drawing which shows the positional relationship of the cutting blade arrange | positioned in the downward position, and a supporting member. 第２の実施形態において、切断刃および保持具に支持された支持部材を示す、切断刃が上方位置に配置された状態の棒状体切断装置を模式的に示す断面図である。In 2nd Embodiment, it is sectional drawing which shows typically the rod-shaped body cutting device of the state by which the cutting blade is arrange | positioned in the upper position which shows the supporting member supported by the cutting blade and the holder.

以下、添付図面を参照して本発明の第１の実施形態の棒状体切断装置について説明する。   Hereinafter, a rod-like body cutting device according to a first embodiment of the present invention will be described with reference to the accompanying drawings.

本実施形態の棒状体切断装置は、上流側の紡糸装置で連続的に製造され、連続的に供給される８本のプラスチック製の屈折率分布型ロッドレンズ原糸を同時に所定長に切断するロッドレンズ原糸（棒状体）切断装置である。   The rod-shaped body cutting device according to the present embodiment is a rod that is continuously manufactured by an upstream spinning device and simultaneously cuts eight plastic graded index rod rod yarns that are continuously supplied into a predetermined length. This is a lens yarn (rod-like body) cutting device.

図１は、本発明の第１の実施形態の棒状体切断装置において同時に切断される８本のロッドレンズ原糸のうちの１本が、切断刃と支持部材との間で切断される状態を模式的に示す断面図であり、図２は、本実施形態の棒状体切断装置で使用される支持部材の裏面側（連続的に供給される棒状体の上流側）から見た斜視図であり、図３は、図２の支持部材を表面側（連続的に供給される棒状体の下流側）から見た斜視図である。   FIG. 1 shows a state in which one of eight rod lens yarns simultaneously cut in the rod-shaped body cutting device according to the first embodiment of the present invention is cut between a cutting blade and a support member. FIG. 2 is a schematic cross-sectional view, and FIG. 2 is a perspective view seen from the back side (upstream side of the continuously supplied rod-shaped body) of the support member used in the rod-shaped body cutting device of the present embodiment. FIG. 3 is a perspective view of the support member of FIG. 2 as viewed from the surface side (downstream side of the continuously supplied rod-shaped body).

図１に示されているように、切断装置１は、断続的に（すなわち所定時間または所定長搬送に１回の割合で）図中の両矢印で示す方向に沿って上下動する切断刃２によって、上流側の紡糸装置で連続的に製造され支持部材４に一定速度で連続的に図中の片矢印で示す方向に沿って供給されてくるロッドレンズ原糸６(棒状体)を所定長に切断していく装置である。なお、このように支持部材が固定され、切断刃が上下動してもよいし、逆に切断刃が固定され、支持部材が上下動してもかまわない。
なお、本実施形態では、棒状体であるロッドレンズ原糸６は、紫外線硬化性の溶融樹脂材料を紡糸して得られる所謂屈折率分布型のロッドレンズ原糸である。 As shown in FIG. 1, the cutting device 1 includes a cutting blade 2 that moves up and down intermittently (that is, at a rate of once for a predetermined time or a predetermined length of conveyance) along the direction indicated by the double arrow in the drawing. Thus, the rod lens raw yarn 6 (rod-like body) that is continuously manufactured by the spinning device on the upstream side and is continuously supplied to the support member 4 at a constant speed along the direction indicated by the single arrow in the figure is a predetermined length. It is a device that cuts into two. Note that the support member may be fixed in this manner and the cutting blade may move up and down, or conversely, the cutting blade may be fixed and the support member may move up and down.
In this embodiment, the rod lens raw yarn 6 that is a rod-shaped body is a so-called refractive index distribution type rod lens raw yarn obtained by spinning an ultraviolet curable molten resin material.

図２に示されるように、支持部材４は、略八角形の金属製板状部材であり、中央部に截頭円錐形の凹部８が設けられている。   As shown in FIG. 2, the support member 4 is a substantially octagonal metal plate-like member, and is provided with a frustoconical recess 8 at the center.

支持部材４の切断刃２と接する側の面（表面）１２には、切削刃の摺動による磨耗を低減するため、上下方向（切断刃２の上下動する方向）に延びる断面矩形状の畝状の***部１８が幅方向中央部に設けられている。
凹部８は、支持部材４の裏面（前記表面１２の反対側の面）１０から表面１２に貫通しており、裏面１０には大径の開口１４が、表面１２には小径開口１６が形成されている。したがって、支持部材４においては、凹部８は、裏面１０から表面１２に貫通して先細りしながら延びる截頭円錐形の貫通孔８となっている。そして、この貫通孔８には、図１に示されているように、切断するロッドレンズ原糸６が挿通される。 A surface (surface) 12 on the side of the support member 4 in contact with the cutting blade 2 has a rectangular cross section extending in the vertical direction (the direction in which the cutting blade 2 moves up and down) in order to reduce wear caused by sliding of the cutting blade. A raised portion 18 is provided at the center in the width direction.
The concave portion 8 penetrates from the back surface (surface opposite to the front surface 12) 10 of the support member 4 to the front surface 12. A large-diameter opening 14 is formed on the back surface 10, and a small-diameter opening 16 is formed on the front surface 12. ing. Therefore, in the support member 4, the recess 8 is a frustoconical through-hole 8 that extends from the back surface 10 to the front surface 12 and tapers. The rod lens raw yarn 6 to be cut is inserted into the through hole 8 as shown in FIG.

本実施形態では、支持部材４の貫通孔８の傾斜面と、表面１２とのなす角度は、３０度〜６０度程度であることが好ましい。   In the present embodiment, the angle formed by the inclined surface of the through hole 8 of the support member 4 and the surface 12 is preferably about 30 to 60 degrees.

本実施形態の棒状体切断装置１では、このような構成を有する８つの支持部材４が保持具内に並列配置され、それぞれの支持部材４の貫通孔８に、上流側の紡糸装置で製造され並列状態で連続的に搬送されてくる８本のロッドレンズ原糸６が、１本ずつ挿通され、断続的に切断される。   In the rod-shaped body cutting device 1 of the present embodiment, the eight support members 4 having such a configuration are arranged in parallel in the holder, and are manufactured in the through holes 8 of the respective support members 4 by the upstream spinning device. Eight rod lens yarns 6 that are continuously conveyed in parallel are inserted one by one and cut intermittently.

図４は、支持部材４を所定位置に保持する保持具の表面側からの斜視図であり、図５は保持具の裏面側からの斜視図である。
保持具２０は、細長い矩形状の金属製の板であり、図４に示されるように、一方の面(表面)の上方部分には、支持部材４を収容する８つの凹部２２が所定間隔で長手方向に整列されて設けられている。 4 is a perspective view from the front surface side of the holder that holds the support member 4 in a predetermined position, and FIG. 5 is a perspective view from the back surface side of the holder.
The holder 20 is an elongated rectangular metal plate, and as shown in FIG. 4, eight concave portions 22 for accommodating the support members 4 are formed at predetermined intervals on an upper portion of one surface (surface). They are arranged in the longitudinal direction.

凹部２２の底面２４には、バネを収容するための貫通していない穴（座ぐり穴）２８が上下２箇所に設けられている。この穴は、左右2箇所または斜め方向左右2箇所に設けてもよい。
更に、底面２４の中心には、ロッドレンズ原糸６が挿通される断面円形の貫通孔３０が設けられ、貫通孔３０は、保持具２０の裏面に開口している。貫通孔３０は、図６ｂに示すように、保持具２０の表面側よりも裏面側で径が大きくなるようにテーパ部分を有しているが、表面側と裏面側で径が同じ大きさであってもよい。
貫通孔３０の径の大きさは、特に制限されないが、支持部材４の裏面１０の大径の開口１４の径の大きさと略同じであるか、または小さいことが好ましい。 On the bottom surface 24 of the recess 22, holes (counterbore holes) 28 that do not pass through are provided in two locations, upper and lower, for accommodating the spring. The holes may be provided at two places on the left and right sides or two places on the left and right sides in the oblique direction.
Further, a through hole 30 having a circular cross section through which the rod lens raw yarn 6 is inserted is provided at the center of the bottom surface 24, and the through hole 30 opens on the back surface of the holder 20. As shown in FIG. 6b, the through hole 30 has a tapered portion so that the diameter is larger on the back surface side than the front surface side of the holder 20, but the diameter is the same on the front surface side and the back surface side. There may be.
The size of the diameter of the through hole 30 is not particularly limited, but is preferably substantially the same as or smaller than the size of the large-diameter opening 14 on the back surface 10 of the support member 4.

図６ｂに示すように、本実施形態の棒状体切断装置１では、支持部材４は、裏面１０が保持具２０の凹部２２の底面２４と向い合うように凹部２２内に嵌め込まれる。すなわち、支持部材４は、表面１２を外方(片矢印で示されるロッドレンズ原糸６の搬送方向下流方向)に向ける向きで、保持具２０に嵌め込まれることになる。このとき、支持部材４は、畝状の***部１８が上下方向に延びる上下方向の配向とされる。
凹部２２内に嵌め込まれた支持部材４は、裏面１０が保持部２０の凹部２２の底面２４から間隔を隔てられるように、底面２４に設けられている穴２８に収容されたバネ２６によって外方に向けて付勢される。 As shown in FIG. 6 b, in the rod-shaped body cutting device 1 of the present embodiment, the support member 4 is fitted into the recess 22 so that the back surface 10 faces the bottom surface 24 of the recess 22 of the holder 20. That is, the support member 4 is fitted into the holder 20 with the surface 12 facing outward (downward in the conveying direction of the rod lens yarn 6 indicated by a single arrow). At this time, the support member 4 has a vertical orientation in which the bowl-shaped ridges 18 extend in the vertical direction.
The support member 4 fitted in the recess 22 is moved outward by a spring 26 accommodated in a hole 28 provided in the bottom surface 24 so that the back surface 10 is spaced from the bottom surface 24 of the recess 22 of the holding portion 20. It is energized towards.

切断刃２は、保持具２０の長さと略等しい長さを有する細長い矩形板状であり、一側端に所謂「平刃」の１枚の刃部３２が形成されている。刃部３２は、板状の切断刃２の一側縁において、一方の面３５が他方の面３３に対し所定角度(例えば２２．５度)をなすように配置されて形成されている。   The cutting blade 2 is an elongated rectangular plate having a length substantially equal to the length of the holder 20, and a single blade portion 32 of a so-called “flat blade” is formed at one side end. The blade portion 32 is formed on one side edge of the plate-shaped cutting blade 2 so that one surface 35 forms a predetermined angle (for example, 22.5 degrees) with respect to the other surface 33.

このような切断刃２は、図示しない上下動機構によって、断続的に（すなわち所定時間または所定長搬送に１回の割合で）、支持部材４の表面１２に沿って摺動しながら上方位置と下方位置との間で上下動可能とされている。   Such a cutting blade 2 is moved upward and downward by sliding along the surface 12 of the support member 4 intermittently (that is, at a rate of once every predetermined time or predetermined length of conveyance) by a vertical movement mechanism (not shown). It can move up and down between the lower positions.

上方位置（図６）は、切断刃２の下端側部分が、保持具２０の凹部内に収容された各支持部材４の上部に重なり、凹部２２内でバネによって外方に付勢されている支持部材４が凹部２２から押し出されることが防止されるように設定されている。   In the upper position (FIG. 6), the lower end side portion of the cutting blade 2 overlaps the upper part of each support member 4 accommodated in the recess of the holder 20, and is biased outward by a spring in the recess 22. It is set so that the support member 4 is prevented from being pushed out of the recess 22.

また、下方位置は、切断刃２の刃部が、保持具２０の凹部内に収容された各支持部材４の表面１２に形成された小径開口１６より下方に配置されるように設定されている。
したがって、切断刃２が上方位置から下方位置に移動する際には、切断刃の刃部が、支持部材４の表面１２に形成された小径開口１６を上下方向に横切ることになる。 The lower position is set so that the blade portion of the cutting blade 2 is disposed below the small-diameter opening 16 formed in the surface 12 of each support member 4 accommodated in the recess of the holder 20. .
Therefore, when the cutting blade 2 moves from the upper position to the lower position, the blade portion of the cutting blade crosses the small diameter opening 16 formed in the surface 12 of the support member 4 in the vertical direction.

切断刃が平刃の場合、支持部材の切断刃との摺動部分に畝状の***部を設けることにより切断刃の磨耗を畝部のみの局部磨耗に押えることができ、平刃を横方向にシフトし新しい刃部を使用することで刃物の寿命による交換までの使用回数を長く取ることができ低コストにつながる。   When the cutting blade is a flat blade, it is possible to suppress the wear of the cutting blade to the local wear of the buttocks only by providing a hook-like raised portion on the sliding part of the support member with the cutting blade. By shifting to, and using a new blade, the number of times of use until the replacement due to the life of the blade can be increased, leading to lower costs.

本実施形態の棒状体切断装置１は、切断刃２の上方位置から下方位置への周期的な移動によって、切断刃２の刃部３２が支持部材４の表面１２に設けられた小径開口１６を周期的に横切って閉鎖し、棒状体切断装置１に一定速度で連続的に供給され、各小径開口１６から所定長だけ突出している合計８本のロッドレンズ原糸６を、各支持部材４の小径開口１６の縁部との間で同時に切断するように構成されている(図１)。   The rod-shaped body cutting device 1 of the present embodiment has a small-diameter opening 16 in which the blade portion 32 of the cutting blade 2 is provided on the surface 12 of the support member 4 by periodic movement of the cutting blade 2 from the upper position to the lower position. A total of eight rod lens yarns 6 which are periodically crossed and closed, are continuously supplied to the rod-shaped body cutting device 1 at a constant speed, and project from the respective small diameter openings 16 by a predetermined length. It is comprised so that it may cut | disconnect simultaneously between the edge parts of the small diameter opening 16 (FIG. 1).

このとき、各支持部材４は、バネによって切断刃２に押圧されているので、各支持部材４と切断刃２との間には、常に、一定の接触状態が維持され、ロッドレンズ原糸の切断が行われることになる。   At this time, since each support member 4 is pressed against the cutting blade 2 by a spring, a constant contact state is always maintained between each support member 4 and the cutting blade 2, and the rod lens yarn Cutting will be performed.

次に本発明の第２の好ましい態様の棒状体切断装置の説明をする。
上述した第１の実施形態では、１枚の切断刃で８本のロッドレンズ原糸を同時に切断する構成であったが、第２実施形態の切断装置では、８つの支持部材のそれぞれと対となる８つの切断刃が独立して設けられ、対となったそれぞれの支持部材と切断刃の間で、ロッドレンズ原糸の切断が行われる。 Next, a rod-like body cutting device according to a second preferred embodiment of the present invention will be described.
In the first embodiment described above, the eight rod lens yarns are simultaneously cut by one cutting blade. However, in the cutting device of the second embodiment, each of the eight support members is paired with each pair. These eight cutting blades are provided independently, and the rod lens yarn is cut between each pair of support members and the cutting blade.

図７は、本発明の第２の実施形態の棒状体切断装置で使用される切断刃の表面側からの斜視図であり、図８は、図７の切断刃の裏面側からの斜視図である。   FIG. 7 is a perspective view from the front surface side of the cutting blade used in the rod-shaped body cutting device according to the second embodiment of the present invention, and FIG. 8 is a perspective view from the rear surface side of the cutting blade in FIG. is there.

図７および図８に示されるように、本実施形態で使用される切断刃３４は、支持部材４と同様の金属製の略八角形の板状部材である。   As shown in FIGS. 7 and 8, the cutting blade 34 used in the present embodiment is a substantially octagonal plate-like member made of metal similar to the support member 4.

本実施形態の切断刃３４にも、第１の実施形態の支持部材と同様に、中央部に截頭円錐形の凹部３６が設けられている。凹部３６は、切断刃３４の表面３８から裏面４０に貫通しており、表面３８には大径の開口４２を、裏面４０には小径開口４４が形成されている。したがって、切断刃３４には、表面３８から裏面４０に貫通して先細りしながら延びる截頭円錐形の貫通孔３６が形成されていることになる。   Similarly to the support member of the first embodiment, the cutting blade 34 of the present embodiment is also provided with a frustoconical recess 36 at the center. The recess 36 penetrates from the front surface 38 of the cutting blade 34 to the back surface 40, and a large-diameter opening 42 is formed on the front surface 38, and a small-diameter opening 44 is formed on the back surface 40. Therefore, the cutting blade 34 is formed with a frustoconical through-hole 36 extending from the front surface 38 to the back surface 40 while being tapered.

本実施形態の棒状体切断装置においても、上記第１の実施形態の棒状体切断装置で使用された支持部材と同一の支持部材が使用されている。本実施形態で使用される切断刃３４は、裏面４０に形成された小径開口４４の直径が、支持部材４の小径開口の直径より大きくなるように構成されている。また、図１１に示すように、第１の実施形態において上記説明したのと同様に、支持部材４を保持具２０によって保持することができる。   Also in the rod-shaped body cutting device of the present embodiment, the same support member as that used in the rod-shaped body cutting device of the first embodiment is used. The cutting blade 34 used in the present embodiment is configured such that the diameter of the small diameter opening 44 formed in the back surface 40 is larger than the diameter of the small diameter opening of the support member 4. Further, as shown in FIG. 11, the support member 4 can be held by the holder 20 in the same manner as described above in the first embodiment.

本実施形態の棒状体切断装置では、切断刃３４は、裏面４０が支持部材４の表面に接し、且つ貫通穴が重なるように、保持具の凹部に収容された支持部材４に対して配置され、所定時間または所定長搬送毎に下方位置に移動し、その後、上方位置に戻る。
次に、本実施形態の棒状体切断装置４６の動作を説明する。
図９は、上方位置に配置された切断刃と支持部材の位置関係を示す模式的な断面図であり、図１０は、下方位置に配置された切断刃と支持部材の位置関係を示す模式的な断面図である。 In the rod-shaped body cutting device of this embodiment, the cutting blade 34 is arranged with respect to the support member 4 accommodated in the recess of the holder so that the back surface 40 is in contact with the surface of the support member 4 and the through holes overlap. , Move to the lower position every predetermined time or predetermined length of conveyance, and then return to the upper position.
Next, operation | movement of the rod-shaped body cutting device 46 of this embodiment is demonstrated.
FIG. 9 is a schematic cross-sectional view showing the positional relationship between the cutting blade and the support member arranged at the upper position, and FIG. 10 is a schematic diagram showing the positional relationship between the cutting blade and the support member arranged at the lower position. FIG.

本実施形態では、図９に示される切断刃の上方位置は、切断刃３４の貫通孔３６の中心と、支持部材の貫通孔８の中心とが整列するように設定されている。この切断刃が上方位置に配置された状態では、図中の片矢印で示す方向に沿って連続的に搬送されてくるロッドレンズ原糸は、整列した支持部材の貫通孔８および切断刃３４の貫通孔３６を通過して下流側に搬送される。   In the present embodiment, the upper position of the cutting blade shown in FIG. 9 is set so that the center of the through hole 36 of the cutting blade 34 and the center of the through hole 8 of the support member are aligned. In a state where the cutting blade is disposed at the upper position, the rod lens raw yarn continuously conveyed along the direction indicated by the single arrow in the drawing is aligned with the through holes 8 and the cutting blades 34 of the aligned support members. It passes through the through hole 36 and is conveyed downstream.

所定時間が経過して、所定長のロッドレンズ原糸が、切断刃３４より下流側に搬送されると、切断刃が図９に示された下方位置に移動され、ロッドレンズ原糸が切断される。その後、切断刃は上方位置に戻される。   When a predetermined time has elapsed and the rod lens yarn of a predetermined length is conveyed downstream from the cutting blade 34, the cutting blade is moved to the lower position shown in FIG. 9, and the rod lens raw yarn is cut. The Thereafter, the cutting blade is returned to the upper position.

このような切断刃の上下動を繰り返すことによって、連続的な搬送されてくるロッドレンズ原糸が、所定長に切断される。   By repeating such vertical movement of the cutting blade, the rod lens raw yarn that is continuously conveyed is cut into a predetermined length.

本発明は、以上の実施の形態に限定されることなく、特許請求の範囲に記載された発明の範囲内で種々の変更が可能であり、それらも本発明の範囲内に包含されるものである。   The present invention is not limited to the above embodiments, and various modifications are possible within the scope of the invention described in the claims, and these are also included in the scope of the present invention. is there.

上述した実施形態において、切断刃を上方から下方に摺動させているが、下方から上方に摺動させてもよい。なお、本発明においては切断刃が固定、支持部材が移動する構成または両方が移動してもかまわない。   In the embodiment described above, the cutting blade is slid downward from above, but may be slid upward from below. In the present invention, the cutting blade may be fixed, the support member may be moved, or both may be moved.

また、上記各実施形態は、８本のロッドレンズ原糸を同時に切断する構成であるが、支持部材の台数を変更し、他の本数のロッドレンズ原糸を同時に切断する構成でもよい。また、１本のロッドレンズ原糸を切断する構成でもよい。   Moreover, although each said embodiment is a structure which cut | disconnects eight rod lens raw yarns simultaneously, the structure which changes the number of support members and cuts the other number of rod lens raw yarns simultaneously may be sufficient. Moreover, the structure which cut | disconnects one rod lens raw yarn may be sufficient.

１：切断装置、２：切断刃、４：支持部材、６：ロッドレンズ原糸、８：凹部、１０：裏面、１２：表面、１４：大径開口、１６：小径開口、１８：***部、２０：保持具、２２：凹部、２４：底面、２６：バネ、２８：穴、３０：貫通孔、３２：刃部、３４：切断刃、３６：凹部、３８：裏面、４０：表面、４２：大径開口、４４：小径開口、４６：切断装置 1: Cutting device, 2: Cutting blade, 4: Support member, 6: Rod lens yarn, 8: Recess, 10: Back surface, 12: Front surface, 14: Large diameter opening, 16: Small diameter opening, 18: Raised portion, 20: holder, 22: recessed portion, 24: bottom surface, 26: spring, 28: hole, 30: through hole, 32: blade portion, 34: cutting blade, 36: recessed portion, 38: back surface, 40: front surface, 42: Large diameter opening, 44: Small diameter opening, 46: Cutting device

Claims (8)

連続的に搬送されてくる棒状体を切断する棒状体切断装置であって、
搬送方向に向かって延びる貫通孔を有する支持部材と、
前記支持部材の前記棒状体搬送方向下流側に配置され、該支持部材の下流側面に沿って前記貫通孔を横切るように摺動し、前記貫通孔の開口端との間に棒状体を挟持して切断する切断刃と、を備え、
前記支持部材が複数設けられ、複数の棒状体が同時に切断される、
ことを特徴とする棒状体切断装置。 A rod-shaped body cutting device for cutting a rod-shaped body that is continuously conveyed,
A support member having a through-hole extending in the transport direction;
The support member is disposed downstream of the support member in the conveying direction of the rod, slides across the through hole along the downstream side surface of the support member, and sandwiches the rod member with the open end of the through hole. Bei to give a, a cutting blade to cut Te,
A plurality of the supporting members are provided, and a plurality of rod-shaped bodies are cut simultaneously.
The rod-shaped body cutting device characterized by the above-mentioned. 前記貫通孔は、前記棒状体の搬送方向下流に向かって先細りしている、
請求項１に記載の棒状体切断装置。 The through hole is tapered toward the downstream in the transport direction of the rod-shaped body,
The rod-shaped body cutting device according to claim 1. 前記切断刃が、平刃である、
請求項１または２に記載の棒状体切断装置。 The cutting blade is a flat blade,
The rod-shaped body cutting device according to claim 1 or 2. 前記切断刃が、前記棒状体が通る貫通孔を備え、該貫通孔が前記支持部材の貫通孔と整列した状態で、前記棒状体が前記支持部材の貫通孔から該切断刃の貫通孔に挿通され、該切断刃が前記支持部材の下流側面に沿って前記貫通孔を横切るように摺動することによって、前記切断刃の貫通孔が前記支持部材の下流側面によって閉鎖され、前記棒状体の切断が行われる、
請求項１または２に記載の棒状体切断装置。 The cutting blade has a through-hole through which the rod-shaped body passes, and the rod-shaped body is inserted from the through-hole of the support member into the through-hole of the cutting blade in a state where the through-hole is aligned with the through-hole of the support member. When the cutting blade slides along the downstream side surface of the support member so as to cross the through hole, the through hole of the cutting blade is closed by the downstream side surface of the support member, and the rod-shaped body is cut. Is done,
The rod-shaped body cutting device according to claim 1 or 2. 前記切断刃の貫通孔が、前記棒状体の搬送方向上流側に向かって先細りしている、
請求項４に記載の棒状体切断装置。 The through-hole of the cutting blade is tapered toward the upstream side in the conveying direction of the rod-shaped body,
The rod-shaped body cutting device according to claim 4. 前記切断刃の貫通孔の前記搬送方向上流側の開口部の直径が、前記支持部材の前記搬送方向下流側の開口部の直径より大径である、
請求項５に記載の棒状体切断装置。 The diameter of the opening on the upstream side in the transport direction of the through hole of the cutting blade is larger than the diameter of the opening on the downstream side in the transport direction of the support member,
The rod-shaped body cutting device according to claim 5. 前記支持部材を前記切断刃に向けて付勢する付勢手段を備えている、
請求項１ないし６のいずれか１項に記載の棒状体切断装置。 Urging means for urging the support member toward the cutting blade;
The rod-shaped body cutting device according to any one of claims 1 to 6. 前記支持部材の下流側面に沿った前記切断刃の摺動を案内する案内手段を備えている、
請求項１ないし７のいずれか１項に記載の棒状体切断装置。 Guide means for guiding sliding of the cutting blade along the downstream side surface of the support member;
The rod-shaped body cutting device according to any one of claims 1 to 7.
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