JPH11239840A - Device for manufacturing chain - Google Patents
Device for manufacturing chainInfo
- Publication number
- JPH11239840A JPH11239840A JP4210298A JP4210298A JPH11239840A JP H11239840 A JPH11239840 A JP H11239840A JP 4210298 A JP4210298 A JP 4210298A JP 4210298 A JP4210298 A JP 4210298A JP H11239840 A JPH11239840 A JP H11239840A
- Authority
- JP
- Japan
- Prior art keywords
- chain
- wire
- bending
- processing position
- fixed
- 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.)
- Pending
Links
Landscapes
- Wire Processing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、所定長さに切断し
た線材を環状に曲げ加工した鎖環を順次に連結した鎖の
製造装置に関するものであり、さらに詳しくは、所定長
さに切断した線材の両端部を場所を変えてＵ字状に曲げ
加工して鎖環を形成することにより、鎖環に残る残留応
力を軽減し、あらゆる材質の線材からなる高品質の鎖の
製造を可能にした鎖の製造装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a chain in which a chain obtained by cutting a wire cut to a predetermined length into an annular shape is sequentially connected, and more particularly, to a chain cut to a predetermined length. By bending both ends of the wire at different locations to form a U-shape to form a chain ring, residual stress remaining on the chain ring is reduced, and it is possible to manufacture high-quality chains consisting of wires of any material. The present invention relates to an apparatus for producing a chain.
【０００２】[0002]
【従来の技術】従来より、機枠に固定した口金の前に一
次加工位置を設定し、この一次加工位置に設けた芯型背
部に線材を繰り出し、芯型に対応して進退動自在に設け
た第一の曲げ工具を前進動させて口金との間で線材を所
定長さに切断するとともに芯型に線材を押当して線材両
端部を芯型の両側前方に平行状に押し曲げ、さらに、芯
型前部に対向的に進退動自在に設けた一対の第二の曲げ
工具を対向的に接近動させて第一の曲げ工具によって芯
型の両側前方に押し曲げられた線材両端部を芯型に巻き
付けるように内向きに深く曲げて線材両端間に線材経よ
り若干大きい開口を形成し、この曲げ加工した線材から
芯型を退出させた後、この線材を送り機構によって送り
機構端部に設定した二次加工位置に移送し、この移送終
点で先に曲げ加工されて二次加工位置に吊持状態に待機
させた鎖端の鎖環を開口部に進入させ、送り機構端部に
この状態を保持して対向的に進退動自在に設けた一対の
第三の曲げ工具を対向的に接近動させて線材両端を鎖端
の鎖環内に深く曲げて突き合わせて鎖環を形成し、この
後に引き上げ機構により鎖を一環分長の引き上げと９０
度を回動させて新たに形成した鎖端の鎖環を所定の待機
位置に保持する動作を繰り返し行って鎖を製造する手法
が提案されている。（例えば、先行技術として特開昭５
３−４３０７５号公報参照）2. Description of the Related Art Conventionally, a primary working position is set in front of a base fixed to a machine frame, and a wire is fed out to a back of a core provided at the primary working position, and is provided so as to be movable forward and backward corresponding to the core. The first bending tool was moved forward to cut the wire into a predetermined length between the die and the base, and the wire was pressed against the core and both ends of the wire were pushed in parallel to both sides forward of the core, and bent. Further, a pair of second bending tools provided at the front of the core mold so as to be able to move forward and backward opposingly are moved to approach each other, and both ends of the wire rod which is pushed forward and both sides of the core by the first bending tool. The wire is bent deeply inward so as to be wound around the core, and an opening slightly larger than the wire rod is formed between both ends of the wire. After the core is pulled out of the bent wire, the wire is fed to the feed mechanism end by the feed mechanism. Transfer to the secondary processing position set in the section, and bend first at this transfer end point The chain ring of the chain end that has been suspended in a suspended state at the secondary processing position enters the opening, and this state is held at the end of the feed mechanism, and a pair of third rings provided so as to be able to move forward and backward opposingly. The two ends of the wire are bent deeply into the chain ring at the chain end to form a chain ring, and then the chain is pulled up by one length by the pulling mechanism.
There has been proposed a method of manufacturing a chain by repeatedly performing an operation of rotating a degree to hold a newly formed chain end chain ring at a predetermined standby position. (For example, as a prior art,
(See JP-A-3-43075)
【０００３】[0003]
【発明が解決しようとする課題】ところで、上記するよ
うな従来の鎖の製造装置では、口金の前に設定した一次
加工位置において、芯型に対して第一の曲げ工具により
線材両端部をほぼ直角に前向きに押し曲げ、次いで、一
対の第二の曲げ工具を対向的に接近動させて線材両端部
を芯型に巻き付けるように内向きに深く曲げる曲げ加工
も、一次加工位置において曲げ加工を終えた線材を二次
加工位置に移送し、ここで一対の第三の曲げ工具を対向
的に接近動させて線材の両端部を更に深く曲げて線材両
端を突き合わせて鎖環を形成する曲げ加工も、全て線材
両端部に対して同時的に曲げ加工がなされるため、鎖環
に形成して鎖環に残る残留応力を大きくし、これが鎖の
強度に影響を与えるばかりでなく、鎖環表面のひび割れ
等の原因にもなる。By the way, in the conventional chain manufacturing apparatus as described above, at the primary processing position set in front of the die, both ends of the wire are almost completely moved by the first bending tool with respect to the core. Pressing and bending forward at a right angle, and then bending the pair of second bending tools inwardly and inwardly so as to wind both ends of the wire around the core by moving the pair of second bending tools in opposition, also bending at the primary processing position The finished wire is transported to the secondary processing position, where a pair of third bending tools are moved in opposition to each other to bend the both ends of the wire further deeply and abut both ends of the wire to form a chain ring. However, since both ends of the wire are simultaneously bent, the residual stress formed on the chain ring and remaining on the chain ring is increased, which not only affects the strength of the chain, but also affects the surface of the chain ring. Cause cracks
【０００４】また、使用される芯型は、線材両端部を同
時に曲げ加工する際の外圧に対して充分な強度が要求さ
れる。このため、硬質材料からなる比較的太い線材を用
い鎖環の中孔を小さくするような形態の鎖の製造では、
芯型の強度上から鎖の寸法、特に中孔の大きさの制限を
受けることもある。さらに、線材両端部の曲げ加工に使
用される上記する第一、第二及び第三の曲げ工具や一次
加工位置に出没自在に配装される芯型等はいずれも駆動
機構に接続されてタイミング動作するために、これらの
動作機構を複雑にして鎖環の形成に必要な構成部品点数
を多くし、また、装置の取り扱いには熟練と高度の技術
等も必要になる。Further, the core mold used is required to have sufficient strength against external pressure when both ends of the wire are simultaneously bent. For this reason, in the production of a chain in a form that uses a relatively thick wire made of a hard material and reduces the center hole of the chain ring,
Due to the strength of the core mold, the size of the chain, particularly the size of the hole, may be limited. Further, the first, second, and third bending tools used for bending the both ends of the wire, and the core dies and the like which are disposed so as to be able to protrude and retract at the primary processing position, are all connected to a drive mechanism and have a timing. In order to operate, these operation mechanisms are complicated, the number of components required for forming a chain ring is increased, and the handling of the device requires skill and advanced techniques.
【０００５】そこで、本発明の課題は、所定長さに切断
した線材の両端部を場所を変えてＵ字状に曲げ加工して
鎖環を形成することで、鎖環に残る残留応力を極力軽減
することができ、また、材質的な制約がなく高品質な各
種規格の鎖を能率よく製造でき、また、鎖環の形成に必
要な構成部品点数を大幅に軽減し、取り扱いが簡単で保
守性にも優れた鎖の製造装置を提供することを目的とし
たものである。Accordingly, an object of the present invention is to reduce the residual stress remaining in a chain ring by forming a chain ring by bending both ends of a wire cut to a predetermined length in a U-shape at different locations to form a chain ring. In addition, it is possible to efficiently manufacture high quality chains of various standards without material restrictions, and to greatly reduce the number of components required to form chain rings, making it easy to handle and maintain. It is an object of the present invention to provide an apparatus for producing chains having excellent properties.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明のうち請求項１記載の発明は、口金の前に一
次加工位置を設定し、該一次加工位置に、口金から繰り
出される線材を所定長さに切断して線材の一方の端部を
Ｕ字状に曲げ加工する一次曲げ機構を設け、該一次曲げ
機構下方に、一次曲げ機構で曲げ加工した線材を載せる
固定台を設け、該固定台上の線材を固定台端部に設定し
た二次加工位置に移送する送り機構を設け、該送り機構
により二次加工位置に移送された線材の曲げ端部を二次
加工位置に吊持状態で待機位置にある鎖端の鎖環内に挿
入し、二次加工位置に、二次加工位置に移送された線材
の他方の端部をＵ字状に曲げ加工して鎖環を形成する二
次曲げ機構を設け、二次加工位置上方に、鎖を間欠的に
引き上げ所定角度を回動させて鎖端の鎖環を待機位置に
保持する手段を設けたことを特徴とする。According to the first aspect of the present invention, in order to achieve the above object, a primary working position is set before a die, and the primary working position is fed from the die. A primary bending mechanism for cutting the wire into a predetermined length and bending one end of the wire into a U-shape is provided, and below the primary bending mechanism, a fixing table for mounting the wire bent by the primary bending mechanism is provided. A feed mechanism for transferring the wire rod on the fixed base to a secondary processing position set at the end of the fixed base, and suspending the bent end of the wire transferred to the secondary processing position by the feed mechanism at the secondary processing position. In the holding state, the wire is inserted into the chain ring at the chain end at the standby position, and the other end of the wire transferred to the secondary processing position is bent into a U-shape at the secondary processing position to form a chain ring. The chain is intermittently pulled up above the secondary processing position by a predetermined angle. A chain ring of the chain ends is rotated, characterized in that a means for holding the standby position.
【０００７】したがって、所定長さに切断した線材の両
端部を場所を変えてＵ字状に曲げ加工して鎖環を形成す
ることで、鎖環に残る残留応力を極力軽減することがで
きる。また、一次加工位置でＵ字状に曲げ加工した線材
は、曲がり部両側に直状部をほぼ平行に形成したフック
状をなすもので、これが二次加工位置に移送されてその
曲げ端部が二次加工位置に吊持状態にあって上半部を固
定台上方に突出させて固定台端面にくっついた状態で待
機している鎖端の鎖環に挿入され、このまま線材の他方
の端部はＵ字状に曲げ加工されて鎖環を形成するので、
鎖への組み付けも簡単になる。[0007] Therefore, by bending both ends of a wire cut to a predetermined length in a U-shape at different positions to form a chain ring, residual stress remaining in the chain ring can be reduced as much as possible. In addition, the wire rod bent into a U-shape at the primary processing position has a hook shape in which straight portions are formed substantially in parallel on both sides of the bent portion, and this is transferred to the secondary processing position, and the bent end portion is formed. At the secondary processing position, it is inserted into the chain ring of the chain end that is suspended with the upper half protruding above the fixed base and attached to the end surface of the fixed base while standing at the secondary processing position. Is bent into a U-shape to form a chain ring,
Assembly to the chain is also easier.
【０００８】また、上記する一次曲げ機構は、口金から
繰り出される線材側方に位置して垂設され、固定台間に
線材通り抜け隙間を形成した固定芯型と、該固定芯型に
対向して進退動自在に設けられ、口金から繰り出された
線材を切断して線材の一方の端部を固定芯型に押当して
Ｕ字状に曲げ加工する可動曲げ工具を備えた構成にする
のが好ましい。このように構成すると、可動曲げ工具の
前進動で線材を切断した後、線材の一方の端部が固定芯
型とともに曲げ工具に設けた入込み凹所内に押し込まれ
る形で確実にＵ字状に曲げられ、曲げ工具が後退して曲
げ力から解放された線材は自重で固定芯型下方に落下し
て固定台上に載せることができる。したがって、送り機
構による二次加工位置への移送は、線材の曲がり部を後
押しする形で固定台上を二次加工位置に向けて直進的に
移送するだけでよい。The above-mentioned primary bending mechanism is provided vertically at a side of a wire rod fed out of a die, and has a fixed core type having a wire passing gap formed between fixing bases, and a primary core type opposed to the fixed core type. It is provided with a movable bending tool that is provided to be able to move forward and backward, and that cuts the wire fed from the die and presses one end of the wire against a fixed core to bend it into a U-shape. preferable. With this configuration, after the wire is cut by the forward movement of the movable bending tool, one end of the wire is securely bent into a U-shape in such a manner that it is pushed into the insertion recess provided in the bending tool together with the fixed core mold. Then, the wire rod which has been released from the bending force by the retreat of the bending tool can fall under the fixed core mold by its own weight and can be placed on the fixed base. Therefore, the transfer to the secondary processing position by the feed mechanism need only be performed by linearly moving the wire on the fixed base toward the secondary processing position in such a manner as to push the bent portion of the wire.
【０００９】二次加工位置で線材端部を曲げ加工する二
次曲げ機構は、固定台端部に近接して設けられ、二次加
工位置に移送された固定台上の線材の他方の端部の側方
に位置する固定曲げ工具と、この曲げ工具に対向して進
退動自在に設けられ、線材端部を曲げ工具に押当してＵ
字状に曲げ加工する可動芯型からなる構成にし、また、
可動芯型は、往復駆動機構に連結した支持腕上に立設さ
れ、固定台と同じ高さ位置で芯型両側に線材受け座を設
け、この受け座からの高さを線材径より若干高く設定
し、可動芯型の断面形態としては、鎖環を形成するに至
る線材端部の曲げ加工中にこれに連なる鎖環が芯型後方
で自由に動ける空間を形成する構成が好ましい。A secondary bending mechanism for bending the end of the wire rod at the secondary processing position is provided near the end of the fixed base, and is provided at the other end of the wire on the fixed base transferred to the secondary processing position. A fixed bending tool positioned on the side, and a movable tool that is provided to be able to move forward and backward so as to face the bending tool.
It is composed of a movable core type that is bent into a letter shape,
The movable core type is erected on the support arm connected to the reciprocating drive mechanism, and wire receiving seats are provided on both sides of the core type at the same height position as the fixed base, and the height from this receiving seat is slightly higher than the wire diameter. The cross section of the movable core mold is preferably set so as to form a space in which the chain ring connected thereto can freely move behind the core mold during bending of the end of the wire rod to form the chain ring.
【００１０】このように構成すると、可動芯型の前進動
で線材端部は固定曲げ工具に設けた入込み凹所に対して
可動芯型とともに押し込まれる形でＵ字状に曲げられ
る。この際に線材端部の曲がりが深まるにつれて先に鎖
端の鎖環に挿入されている線材の曲げ端部は鎖端の鎖環
を引きずって固定台上から離れ、線材端部は可動芯型両
側の受け座に載り移って水平に支持されて曲げ加工が進
行し、曲げ加工を終了して線材両端部が突き合わさって
新たな鎖環を形成する。[0010] With this configuration, the end of the wire is bent into a U-shape by being pushed together with the movable core into an insertion recess provided in the fixed bending tool by the forward movement of the movable core. At this time, as the end of the wire becomes deeper, the bent end of the wire inserted into the chain ring at the chain end first moves away from the fixed base by dragging the chain ring at the chain end, and the end of the wire is a movable core type. The bending work proceeds while being placed on the receiving seats on both sides and supported horizontally, and the bending work is completed, and the two ends of the wire abut to form a new chain ring.
【００１１】この後、可動芯型が後退してその後退途中
で鎖を一環分長を引き上げると、新たに形成された鎖環
は可動芯型から抜けて可動芯型と固定台端部との間に吊
り下げ状になり、可動芯型は待機位置に戻る。ここで鎖
を９０度回動させると、新たに形成された鎖環は先の鎖
端の鎖環同様に、その上半部を固定台上方に突出させて
固定台端面にくっついた状態でその中孔を次に固定台上
を移送されてくる線材の曲げ端部の進入方向に向けて待
機する。したがって、鎖へ組み付ける二次加工位置にお
ける線材端部の曲げ加工では、吊持状態にある鎖端の鎖
環に組み入れる加工となるが、線材端部の曲げ加工中は
吊持状態にある鎖は揺動を自由にし、しかも、鎖端の鎖
環は可動芯型後方に形成される空間で動きを自由にする
から、鎖の存在等に左右されることなく確実に行われ
る。[0011] Thereafter, when the movable core die retreats and the chain is pulled up by a part length during the retreat, the newly formed chain ring comes off from the movable core die and is moved between the movable core die and the fixed base end. And the movable core returns to the standby position. Here, when the chain is rotated by 90 degrees, the newly formed chain ring, like the chain ring at the end of the previous chain, has its upper half protruding above the fixing base and attached to the end surface of the fixing base. The hole is then made to stand by in the direction in which the bent end portion of the wire rod to be transferred on the fixed base enters. Therefore, in the bending process of the end of the wire at the secondary processing position for assembling to the chain, the wire is to be incorporated into the chain ring of the chain end in the suspended state. Swing is free, and the chain ring at the chain end is free to move in the space formed behind the movable core mold. Therefore, the movement is reliably performed without being affected by the existence of the chain.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を、図
面に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１は本発明の実施の形態を示す鎖の製造
装置の構成要部の正面図、図２は本発明の実施の形態を
示す鎖の製造装置の構成要部の平面図である。FIG. 1 is a front view of a main part of a chain manufacturing apparatus showing an embodiment of the present invention, and FIG. 2 is a plan view of a main part of a chain manufacturing apparatus showing an embodiment of the present invention. .
【００１４】図において、口金１は機枠（図示せず）に
固定されており、その前方に一次加工位置ａが設定さ
れ、この一次加工位置ａに口金１から線材Ａが強制的に
繰り出される。In the drawing, a base 1 is fixed to a machine frame (not shown), a primary working position a is set in front of the base 1, and a wire A is forcibly fed from the base 1 to the primary working position a. .
【００１５】一次加工位置ａに、線材Ａの一方の端部を
Ｕ字状に曲げ加工する一次曲げ機構２を設けている。こ
の一次曲げ機構２は、口金１から繰り出される線材側方
に位置して機枠側から垂設した固定芯型３と、この固定
芯型３に対向して進退動自在に設けた可動曲げ工具４か
らなり、可動曲げ工具４は、固定芯型３に対応して設け
た入込み凹所５の入口両側に溝付きローラ６を取着した
もので、往復駆動機構（図示せず）に連結している。A primary bending mechanism 2 for bending one end of a wire A into a U-shape is provided at a primary processing position a. The primary bending mechanism 2 includes a fixed core mold 3 that is positioned on the side of the wire rod fed from the die 1 and is vertically suspended from the machine frame side, and a movable bending tool that is provided opposite to the fixed core mold 3 so as to be movable forward and backward. The movable bending tool 4 is provided with grooved rollers 6 on both sides of the entrance of an entry recess 5 provided corresponding to the fixed core mold 3, and is connected to a reciprocating drive mechanism (not shown). ing.
【００１６】前記固定芯型３下方にあってこの固定芯型
３との間に線材通り抜け隙間を形成して固定台７を設け
ている。この固定台７は一次曲げ機構２により曲げ加工
を終えた線材Ａ1を固定台端部に設定した二次加工位置
ｂに移送するためのもので、固定台７上の線材Ａ1を押
送する送り機構８を設けている。この送り機構８は固定
台７面を這うように往復移動する押し杆９で線材Ａ1の
曲がり部を後押しする形で固定台７上を二次加工位置ｂ
に直進的に移送するもので、押し杆９は往復駆動機構
（図示せず）に連結している。A fixed base 7 is provided below the fixed core mold 3 and a gap is formed between the fixed core mold 3 and the fixed core mold 3 so as to pass through a wire. The fixed base 7 is for transferring the wire A1 that has been bent by the primary bending mechanism 2 to a secondary processing position b set at the end of the fixed base, and a feed mechanism 8 for pushing the wire A1 on the fixed base 7. Is provided. The feed mechanism 8 pushes the bent portion of the wire A1 with a push rod 9 reciprocating along the surface of the fixed base 7 so as to push the bent portion of the wire A1 on the fixed base 7 at the secondary machining position b.
The push rod 9 is connected to a reciprocating drive mechanism (not shown).
【００１７】二次加工位置ｂに、線材Ａ1の他方の端部
を曲げ加工して鎖環Ａ2を形成する二次曲げ機構１０を
設けている。この二次曲げ機構１０は、固定台７端部に
近接して設けた固定曲げ工具１１と、この固定曲げ工具
１１に対向して進退動自在に設けた可動芯型１２からな
り、固定曲げ工具１１には、可動芯型１２に対応して入
込み凹所１３を設け、その入口両側に溝付きローラ１４
を取着し、可動芯型１２は、往復駆動機構（図示せず）
に連結した支持腕１５上に立設され、固定台７と同じ高
さ位置で芯型両側に線材受け座１６を設け、この受け座
１６からの高さを線材径より若干高く設定し、可動芯型
１２の断面形態としては、鎖環Ａ2を形成するに至る線
材Ａ1の曲げ加工中にこれに連なる鎖環Ａ2が芯型後方で
自由に動ける空間を形成するようにしている。A secondary bending mechanism 10 for bending the other end of the wire rod A1 to form a chain ring A2 is provided at the secondary processing position b. The secondary bending mechanism 10 includes a fixed bending tool 11 provided in the vicinity of an end of the fixed base 7 and a movable core die 12 provided to move forward and backward in opposition to the fixed bending tool 11. 11 is provided with an indentation recess 13 corresponding to the movable core mold 12, and grooved rollers 14 are provided on both sides of the entrance.
The movable core mold 12 has a reciprocating drive mechanism (not shown).
And a wire receiving seat 16 is provided on both sides of the core at the same height position as the fixed base 7, and the height from the receiving seat 16 is set slightly higher than the wire diameter to be movable. The cross-sectional form of the core die 12 is such that a space in which the chain ring A2 connected thereto can move freely behind the core die during bending of the wire rod A1 to form the chain ring A2.
【００１８】二次加工位置ｂの上方に、鎖Ａ3を間欠的
に引き上げる鎖引き上げ機構１７と所定角度を回動させ
て鎖端の鎖環Ａ2を待機位置に保持する鎖回動機構１８
を設けている。鎖引き上げ機構１７は鎖回動機構１８か
ら上方に延びる鎖Ａ3を引っ掛け状にして、その一環分
長を間欠的に引き上げるものであり、また、鎖回動機構
１８は保持具１９の体内に貫設した断面十字形の鎖通孔
２０に鎖Ａ3の各鎖環を直交状に緩挿して鎖Ａ3を吊持状
態に保持し、所定角度（９０度）を往復回動させて鎖端
の鎖環Ａ2の上半部を固定台７上方に突出させて固定台
７端面にくっついた状態で待機させるものである。A chain pulling mechanism 17 for intermittently lifting the chain A3 above the secondary processing position b and a chain rotating mechanism 18 for rotating a predetermined angle to hold the chain ring A2 at the chain end in the standby position.
Is provided. The chain pulling mechanism 17 hooks a chain A3 extending upward from the chain rotating mechanism 18 and intermittently raises a part of the chain A3, and the chain rotating mechanism 18 penetrates through the body of the holder 19. The chain A3 is held in a suspended state by loosely inserting each chain ring of the chain A3 orthogonally into the provided cross-shaped chain through hole 20 and reciprocatingly rotating a predetermined angle (90 degrees) to form a chain at the chain end. The upper half of the ring A2 is protruded above the fixed base 7 so as to stand by while being attached to the end face of the fixed base 7.
【００１９】なお、上記する各駆動機構は常套手段によ
るものであり、また、各部の動作は周知の制御機構によ
ってタイミング動作するもので、ここではそれらの詳細
な具体的構造の説明は省略する。It should be noted that each of the above-mentioned driving mechanisms is based on conventional means, and the operation of each section is performed by a well-known control mechanism at a timing. Therefore, detailed description of the detailed structure thereof will be omitted.
【００２０】上記構成からなる本発明の鎖の製造装置の
動作を図３〜図７を参照しながら説明する。The operation of the chain manufacturing apparatus of the present invention having the above configuration will be described with reference to FIGS.
【００２１】図３： 可動曲げ工具４が待機位置にある
時に口金１の前に線材Ａが繰り出される。FIG. 3: When the movable bending tool 4 is in the standby position, the wire A is fed out in front of the base 1.
【００２２】図４： 可動曲げ工具４の前進動で口金１
との間で線材Ａが所定長さに切断され、引き続き線材の
一方の端部を固定芯型３とともに曲げ工具４の入込み凹
所５内に押し込み状にしてＵ字状に曲げられる。FIG. 4: The base 1 by the forward movement of the movable bending tool 4
Then, the wire A is cut into a predetermined length, and then one end of the wire is pushed into the recess 5 of the bending tool 4 together with the fixed core 3 and bent in a U-shape.
【００２３】図５： 可動曲げ工具４が後退して曲げ力
から解放された線材Ａ1は自重で固定芯型３下方に落下
して固定台７上に載る。FIG. 5: The wire A1 released from the bending force by the retreat of the movable bending tool 4 falls below the fixed core mold 3 by its own weight and is placed on the fixed base 7.
【００２４】図６： 固定台７上の線材Ａ1を送り機構
８の押し杆９で線材Ａ1の曲がり部を後押しする形で固
定台７上を二次加工位置ｂに向けて移送する。FIG. 6: The wire rod A1 on the fixed base 7 is transferred to the secondary processing position b on the fixed base 7 by pushing the bent portion of the wire rod A1 by the push rod 9 of the feed mechanism 8.
【００２５】ここで線材Ａ1が二次加工位置ｂに到達し
て線材Ａ1の曲げ端部は固定台７端面にくっついた状態
で待機している鎖端の鎖環Ａ2に挿入され、同時に線材
Ａ1の他方の端部が二次曲げ機構１０を構成する固定曲
げ工具１１の入込み凹所１３の入口部前に位置する。Here, when the wire A1 reaches the secondary processing position b, the bent end of the wire A1 is inserted into the chain ring A2 of the chain end which is waiting while being attached to the end face of the fixing base 7, and at the same time, the wire A1 Is located in front of the entrance of the entrance recess 13 of the fixed bending tool 11 constituting the secondary bending mechanism 10.
【００２６】図７： 可動芯型１２の前進動で線材端部
を可動芯型１２とともに固定曲げ工具１１の入込み凹所
１３内に押し込み状にしてＵ字状に曲げられる。こうし
て線材両端部が突き合わさってここに新たな鎖環Ａ2を
形成する。FIG. 7: The movable core 12 is pushed forward into the recess 13 of the fixed bending tool 11 together with the movable core 12 by the forward movement of the movable core 12 and bent into a U-shape. In this way, the two ends of the wire abut each other to form a new chain ring A2.
【００２７】この時の線材端部の曲げ加工で、その曲が
りが深まるにつれて先に鎖端の鎖環Ａ2に挿入されてい
る線材の曲げ端部は鎖端の鎖環Ａ2を引きずって固定台
７上から離れ、線材端部は可動芯型１２両側の受け座１
６に載り移って曲げ加工は進行する。In the bending process of the end portion of the wire at this time, as the bending deepens, the bent end portion of the wire material inserted into the chain ring A2 at the chain end drags the chain ring A2 at the chain end to fix the fixing base 7. Separate from the top, the end of the wire is
6 and the bending process proceeds.
【００２８】こうして新たな鎖環Ａ2を形成した後、可
動芯型１２が後退し、その後退途中で引き上げ機構１７
により鎖を引き上げると、新たな鎖環Ａ2は可動芯型１
２上に抜けて可動芯型１２と固定台７端部との間に吊り
下げ状になる。次いで、鎖回動機構１８により鎖Ａ3を
９０度を回動させると、新たに形成された鎖環Ａ2が鎖
端の鎖環Ａ2としてその上半部を固定台７上方に突出さ
せて固定台７端面にくっついた状態でその中孔を次に移
送されてくる線材Ａ1の曲げ端部の進入方向に向けて待
機する。こうして上記動作を繰り返して鎖Ａ3は製造さ
れる。After forming a new chain ring A2 in this manner, the movable core mold 12 is retracted, and during the retraction, the lifting mechanism 17 is moved.
When the chain is pulled up, a new chain ring A2 is
2 and is suspended between the movable core die 12 and the end of the fixed base 7. Next, when the chain A3 is rotated by 90 degrees by the chain rotation mechanism 18, the newly formed chain ring A2 becomes the chain ring A2 at the chain end, and the upper half thereof is projected above the fixing table 7 to fix the chain A3. While being attached to the end face, the hole stands by in the hole in the direction of entry of the bent end of the wire A1 to be transferred next. The above operation is repeated to produce the chain A3.
【００２９】[0029]
【発明の効果】本発明は、以上説明したような形態で実
施され、本発明によれば、所定長さに切断した線材の両
端部を場所を変えてＵ字状に曲げ加工して鎖環を形成す
るから、余分な曲げ加工が必要なく、曲げ加工箇所を必
要最小限に止め、しかも、同時に線材上２箇所を曲げ加
工するようなこともなく、線材端部の曲げ加工が無理な
く円滑に行われるので、鎖環に残る残留応力を軽減し、
あらゆる材質の線材からなる高品質の鎖を提供できる。The present invention is embodied in the form as described above. According to the present invention, a chain ring is formed by bending both ends of a wire cut to a predetermined length in a U-shape at different locations. Since no extra bending is required, the number of bending points is kept to a minimum, and the bending of the ends of the wire is easy and smooth without bending two points on the wire at the same time. It reduces the residual stress remaining in the chain ring,
We can provide high quality chains made of wires of all materials.
【００３０】また、二次加工位置には、鎖端の鎖環が吊
持状態でその上半部を固定台上方に突出させて固定台端
面にくっついた状態で待機しており、この鎖環に、一次
加工位置でＵ字状に曲げ加工した線材の曲げ端部を挿入
するので、その挿入は確実にできる。In the secondary processing position, the chain ring at the chain end is suspended and the upper half thereof is projected above the fixed base and is attached to the end surface of the fixed base to stand by. Then, since the bent end of the wire rod bent into a U-shape at the primary processing position is inserted, the insertion can be surely performed.
【００３１】さらに、装置としては、線材の両端部を曲
げ加工する機構を含め、関連する動作機構を簡素化し、
鎖環の形成に必要な装置の構成部品点数を大幅に軽減
し、取り扱いが簡単で保守性にも優れたもので、信頼性
も高く、能率よく各種規格の鎖の大量生産を可能にす
る。Further, as the device, the related operation mechanism including a mechanism for bending both ends of the wire is simplified,
It greatly reduces the number of component parts required for the formation of chain rings, is easy to handle and has excellent maintainability, has high reliability, and enables efficient mass production of chains of various standards.
【図１】本発明の実施の形態を示す鎖の製造装置の構成
要部の正面図である。FIG. 1 is a front view of a main part of a chain manufacturing apparatus according to an embodiment of the present invention.
【図２】本発明の実施の形態を示す鎖の製造装置の構成
要部の平面図である。FIG. 2 is a plan view of a main part of a chain manufacturing apparatus according to an embodiment of the present invention.
【図３】本発明の装置の動作要領を説明する構成要部の
平面図である。FIG. 3 is a plan view of a main part of a configuration for explaining an operation point of the apparatus of the present invention.
【図４】本発明の装置の動作要領を説明する構成要部の
平面図である。FIG. 4 is a plan view of a main part of a structure for explaining the operation of the device of the present invention.
【図５】本発明の装置の動作要領を説明する構成要部の
平面図である。FIG. 5 is a plan view of an essential part for explaining the operation of the device of the present invention.
【図６】本発明の装置の動作要領を説明する構成要部の
平面図である。FIG. 6 is a plan view of a main part of a structure for explaining the operation of the device of the present invention.
【図７】本発明の装置の動作要領を説明する構成要部の
平面図である。FIG. 7 is a plan view of an essential part for explaining an operation point of the device of the present invention.
１ 口金 ２ 一次曲げ機構 ３ 固定芯型 ４ 可動曲げ工具 ５ 入込み凹所 ６ 溝付きローラ ７ 固定台 ８ 送り機構 ９ 押し杆 １０ 二次曲げ機構 １１ 固定曲げ工具 １２ 可動芯型 １３ 入込み凹所 １４ 溝付きローラ １５ 支持腕 １６ 線材受け座 １７ 鎖引き上げ機構 １８ 鎖回動機構 １９ 保持具 ２０ 鎖通孔 Ａ 線材 Ａ1 一次曲げ加工を終えた線材 Ａ2 鎖環 Ａ3 鎖 ａ 一次加工位置 ｂ 二次加工位置 DESCRIPTION OF SYMBOLS 1 Base 2 Primary bending mechanism 3 Fixed core type 4 Movable bending tool 5 Entrance recess 6 Slotted roller 7 Fixing stand 8 Feeding mechanism 9 Push rod 10 Secondary bending mechanism 11 Fixed bending tool 12 Movable core mold 13 Entrance recess 14 Groove Roller with support 15 Support arm 16 Wire rod receiving seat 17 Chain lifting mechanism 18 Chain rotating mechanism 19 Holder 20 Chain through hole A Wire rod A1 Wire rod after primary bending A2 Chain ring A3 Chain a Primary processing position b Secondary processing position
Claims (4)
加工位置に、口金から繰り出される線材を所定長さに切
断して線材の一方の端部をＵ字状に曲げ加工する一次曲
げ機構を設け、該一次曲げ機構下方に、一次曲げ機構で
曲げ加工した線材を載せる固定台を設け、該固定台上の
線材を固定台端部に設定した二次加工位置に移送する送
り機構を設け、該送り機構により二次加工位置に移送さ
れた線材の曲げ端部を二次加工位置に吊持状態で待機位
置にある鎖端の鎖環内に挿入し、二次加工位置に、二次
加工位置に移送された線材の他方の端部をＵ字状に曲げ
加工して鎖環を形成する二次曲げ機構を設け、二次加工
位置上方に、鎖を間欠的に引き上げ所定角度を回動させ
て鎖端の鎖環を待機位置に保持する手段を設けたことを
特徴とする鎖製造装置。A primary processing position is set before a die, and a wire rod fed from the die is cut into a predetermined length at the primary processing position, and one end of the wire is bent into a U-shape. Provided with a bending mechanism, below the primary bending mechanism, provided a fixed base on which the wire rod bent by the primary bending mechanism is mounted, and provided a feed mechanism for transferring the wire on the fixed base to a secondary processing position set at the end of the fixed base. The bending end of the wire rod transferred to the secondary processing position by the feed mechanism is inserted into the chain ring of the chain end at the standby position in a state of being suspended at the secondary processing position. A secondary bending mechanism for bending the other end of the wire transferred to the next processing position into a U-shape to form a chain ring is provided, and the chain is intermittently pulled up to a predetermined angle above the secondary processing position. Characterized in that there is provided means for rotating the chain ring at the chain end to hold the chain ring at a standby position. Location.
材側方に位置し、固定台間に線材通り抜け隙間を形成し
て垂設した固定芯型と、該固定芯型に対向して進退動自
在に設けられ、口金から繰り出された線材を切断して線
材の一方の端部を固定芯型に押当してＵ字状に曲げ加工
する可動曲げ工具を備えたことを特徴とする請求項１記
載の鎖製造装置。2. A fixed-bending mechanism, wherein a primary bending mechanism is located on a side of a wire rod fed out of a die, and has a vertically extending fixed-core mold formed with a clearance between the fixed tables so as to pass through the wire rod. A movable bending tool, which is freely provided, cuts the wire fed from the die and presses one end of the wire against a fixed core to bend into a U-shape. 2. The chain manufacturing apparatus according to 1.
けられ、二次加工位置に移送された固定台上の線材の他
方の端部の側方に位置する固定曲げ工具と、該曲げ工具
に対向して進退動自在に設けられ、線材端部を曲げ工具
に押当してＵ字状に曲げ加工する可動芯型からなること
を特徴とする請求項１記載の鎖製造装置。3. A fixed bending tool, wherein a secondary bending mechanism is provided adjacent to an end of the fixed table, and is located on a side of the other end of the wire on the fixed table transferred to the secondary processing position; 2. The chain manufacturing apparatus according to claim 1, wherein the chain manufacturing apparatus is provided with a movable core that is provided so as to be able to move forward and backward so as to face the bending tool, and presses the end of the wire against the bending tool to bend into a U-shape. .
に、固定台と同じ高さで線材受け座を設け、該受け座か
らの芯型高さを線材径より若干高く設定し、可動芯型の
断面形態を、鎖環を形成するに至る線材端部の曲げ加工
中に、該線材に連なる鎖環が芯型後方で自由に動ける空
間を形成するようにしたことを特徴とする請求項３記載
の鎖の製造装置。4. A movable core die is erected on a supporting arm, and wire receiving seats are provided on both sides of the core die at the same height as the fixed base, and the height of the core die from the receiving seat is slightly larger than the wire diameter. The cross section of the movable core is set high to form a space in which the chain link connected to the wire can move freely behind the core during bending of the end of the wire leading to the formation of the chain link. The chain manufacturing apparatus according to claim 3, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4210298A JPH11239840A (en) | 1998-02-24 | 1998-02-24 | Device for manufacturing chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4210298A JPH11239840A (en) | 1998-02-24 | 1998-02-24 | Device for manufacturing chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11239840A true JPH11239840A (en) | 1999-09-07 |
Family
ID=12626630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4210298A Pending JPH11239840A (en) | 1998-02-24 | 1998-02-24 | Device for manufacturing chain |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11239840A (en) |
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|---|---|---|---|---|
| JP2008090585A (en) * | 2006-10-02 | 2008-04-17 | Yuusuke Kin | Chain used for theft prevention for automatic vending machine |
| CN102489662A (en) * | 2011-12-23 | 2012-06-13 | 王洪军 | Automatic serial knitting device and method for high-strength large round-link chain for mining |
| CN102489663A (en) * | 2011-12-23 | 2012-06-13 | 王洪军 | Mining high-intensity large round-link chain bending mechanism |
| CN102527916A (en) * | 2011-12-02 | 2012-07-04 | 安吉长虹制链有限公司 | Chain-producing equipment |
| CN109500348A (en) * | 2018-12-21 | 2019-03-22 | 东山欧凯金属塑料制品有限公司 | A kind of chain-producing equipment |
| CN110695307A (en) * | 2019-10-21 | 2020-01-17 | 温金建 | Full-automatic iron chain production and processing equipment |
| CN111390102A (en) * | 2020-03-02 | 2020-07-10 | 富丽慧 | Uninterrupted bending connection equipment for chain |
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| CN113458319A (en) * | 2021-06-10 | 2021-10-01 | 阳泉煤业华茂制链有限公司 | High-precision control system for processing endless chain |
| CN113560462A (en) * | 2021-07-31 | 2021-10-29 | 如皋市淇奥五金制品有限公司 | System for processing chain with firm structure |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008090585A (en) * | 2006-10-02 | 2008-04-17 | Yuusuke Kin | Chain used for theft prevention for automatic vending machine |
| CN102527916A (en) * | 2011-12-02 | 2012-07-04 | 安吉长虹制链有限公司 | Chain-producing equipment |
| CN102489662A (en) * | 2011-12-23 | 2012-06-13 | 王洪军 | Automatic serial knitting device and method for high-strength large round-link chain for mining |
| CN102489663A (en) * | 2011-12-23 | 2012-06-13 | 王洪军 | Mining high-intensity large round-link chain bending mechanism |
| CN109500348A (en) * | 2018-12-21 | 2019-03-22 | 东山欧凯金属塑料制品有限公司 | A kind of chain-producing equipment |
| CN110695307A (en) * | 2019-10-21 | 2020-01-17 | 温金建 | Full-automatic iron chain production and processing equipment |
| CN110695307B (en) * | 2019-10-21 | 2020-11-17 | 绍兴百丽恒印染有限公司 | Full-automatic iron chain production and processing equipment |
| CN111390102B (en) * | 2020-03-02 | 2021-12-10 | 南京欧澳链条有限公司 | Uninterrupted bending connection equipment for chain |
| CN111390102A (en) * | 2020-03-02 | 2020-07-10 | 富丽慧 | Uninterrupted bending connection equipment for chain |
| CN111957878A (en) * | 2020-09-17 | 2020-11-20 | 史学秀 | Automatic production equipment for buckle chain and use method thereof |
| CN111957878B (en) * | 2020-09-17 | 2021-10-26 | 史学秀 | Automatic production equipment for buckle chain and use method thereof |
| CN113118376A (en) * | 2021-03-11 | 2021-07-16 | 合肥正特机械有限公司 | Processing and forming device based on chain ring |
| CN113458319A (en) * | 2021-06-10 | 2021-10-01 | 阳泉煤业华茂制链有限公司 | High-precision control system for processing endless chain |
| CN113458319B (en) * | 2021-06-10 | 2023-05-19 | 阳泉煤业华茂制链有限公司 | High-precision control system for processing loop chain |
| CN113560462A (en) * | 2021-07-31 | 2021-10-29 | 如皋市淇奥五金制品有限公司 | System for processing chain with firm structure |
| CN113909428A (en) * | 2021-12-14 | 2022-01-11 | 江苏鸿恩智能科技有限公司 | Chain mouth connecting assembly for high-strength round chain |
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