JP2010120067A - Press-punching die having means for removing punching debris - Google Patents

Press-punching die having means for removing punching debris Download PDF

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JP2010120067A
JP2010120067A JP2008297432A JP2008297432A JP2010120067A JP 2010120067 A JP2010120067 A JP 2010120067A JP 2008297432 A JP2008297432 A JP 2008297432A JP 2008297432 A JP2008297432 A JP 2008297432A JP 2010120067 A JP2010120067 A JP 2010120067A
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compressed air
punching
die
punch
valve
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JP5046048B2 (en
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Feng Gao
峰（Ｇａｏ Ｆｅｎｇ） 高
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Kitakyushu Foundation for Advancement of Industry Science and Technology
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a press-punching die, which surely makes punching debris fall into a debris discharging port and never causes rising of debris even when punching a copper plate, a steel plate, a stainless steel plate, and the like. <P>SOLUTION: An air compressor, whose piston is operated by ascending/descending of an upper die, is installed in a press die. Further, the press-punching die includes: a duct, which leads compressed air to the hollow part of a hollow punch through a pressure accumulator; a compressed air valve, which determines the open timing for feeding air into the hollow part of the hollow punch corresponding to a stroke of the hollow punch; and a means for setting the timing to open the compressed air valve. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、平板をパンチにより打ち抜き加工するためのプレス金型であって、打ち抜き加工後、パンチの下端部に付着してダイの上に上がってくる「かす上がり」等のない打ち抜きプレス金型に関する。   The present invention is a press die for punching a flat plate by a punch, and after punching, a punch press die having no “smoke” that sticks to the lower end of the punch and rises on the die About.

従来、たとえば金属板に孔を形成するために、打ち抜きプレス加工機が用いられている。この打ち抜きプレス加工機にあっては、図３に示すように、パンチ１０２でダイ１０４上のワーク１０６に孔を打ち抜いた後に発生する円板状のかす１０７ａが、パンチ１０２の上昇の際、かす排出口１０５を落下するかす１０７ｃやダイ１０４に嵌ったかす１０７ｂ以外にダイ１０４部分の負圧や油膜の存在に起因してパンチ１０２の下端部に付着してダイ１０４の上に上がってくことがある。ダイ１０４上に上がったかす１０７ａは、孔あけ後の製品に打痕を与えたり、パンチ１０２に破損を招くなどの問題を惹起する。   Conventionally, for example, a punch press machine is used to form a hole in a metal plate. In this punching press machine, as shown in FIG. 3, the disk-shaped debris 107 a generated after punching a hole in the workpiece 106 on the die 104 with the punch 102 causes the debris to move when the punch 102 is raised. In addition to the debris 107c dropping the discharge port 105 and the debris 107b fitted in the die 104, it may adhere to the lower end portion of the punch 102 due to the negative pressure in the die 104 portion or the presence of an oil film, and rise above the die 104. is there. The debris 107a raised on the die 104 causes problems such as giving a dent to the product after drilling and causing damage to the punch 102.

かかる問題を解決すべく、ダイの切り刃側面部に微小な溝を穿設し抵抗を大きくしてかす上がりを防ぐことや、ダイの切り刃にテーパを形成して抵抗を大きくする等の手段が採られている。また、パンチに空気孔を穿設して圧縮空気をかすに吹き付けて除去する等の手段も採られている。さらに、パンチを延長してかすをスクラップ排出口に深く押し下げることもなされている。   In order to solve this problem, means such as forming a minute groove on the side surface of the die cutting blade to increase the resistance to prevent scumming, or forming a taper on the die cutting blade to increase the resistance, etc. Has been adopted. In addition, means such as punching an air hole in the punch and blowing the compressed air on the dust to remove it are also employed. In addition, the punch is extended to push the scum deeply into the scrap outlet.

一方、かす排出口をエジェクタによって負圧とし、かすを吸引除去するようにしたプレス加工機も提案されている（特許文献１参照）。
特開平０８−１５０４３３号公報 On the other hand, there has also been proposed a press machine in which the waste outlet is set to a negative pressure by an ejector and the waste is sucked and removed (see Patent Document 1).
Japanese Patent Laid-Open No. 08-150433

上記従来技術は、ダイ側の摩擦係数を大きくする手段であり、打ち抜き状況や摩耗などによって効果の安定性が悪くなる問題がある。また、パンチに空気孔を形成し圧縮空気を通すかす取り手段は、０．５ＭＰａ以下の工場用圧縮空気を用いるのが一般的であり、かような低圧の空気を吹き付けてかすを除去しようとするときは、わけても銅板や鋼板といった金属板を打ち抜くときのかす上がりを完全に解決することは困難である。さらに、パンチを延長してかすをスクラップ排出口に深く押し下げる手段は、パンチ先端部を破損したりダイの摩耗を招くのみならず、ダイの再研磨可能回数を減少せしめ、ダイの寿命短縮を招く問題がある。   The above prior art is a means for increasing the friction coefficient on the die side, and there is a problem that the stability of the effect is deteriorated due to the punching situation or wear. In addition, it is common to use compressed air for factories of 0.5 MPa or less as a means for removing air by forming compressed air through the punch and trying to remove debris by blowing such low-pressure air. In particular, it is difficult to completely solve the scumming when punching a metal plate such as a copper plate or a steel plate. Furthermore, the means to extend the punch and push the debris deeply into the scrap outlet not only breaks the punch tip and causes die wear, but also reduces the number of dies that can be re-polished, leading to reduced die life. There's a problem.

また、特許文献１に開示の打ち抜きかす除去装置は、圧縮空気を用いるエギゾースタによってかす排出口（貫通孔）を負圧としてかすを吸引するものであるが、わけても銅板や鋼板等を打ち抜くときに、油膜等によるかすのパンチ下端部における付着を剥離させてかす排出口へ落下せしめるには不十分である。   Moreover, the punch debris removal device disclosed in Patent Document 1 sucks debris as a negative pressure on the debris outlet (through hole) by an exhaustor using compressed air, but when punching a copper plate, a steel plate, etc. It is not sufficient to peel off the deposit at the lower end of the punch due to oil film or the like and drop it to the waste outlet.

本発明は、上記従来技術における問題を解決し、確実に打ち抜きかすをかす排出口に落下せしめ、銅板や鋼板、ステンレス鋼板等を打ち抜くときにもかす上がりを惹起することが全くない打ち抜きプレス金型を提供することを目的とする。   The present invention solves the above-mentioned problems in the prior art and reliably drops the punching discharge outlet into a discharge outlet, and does not cause any scumming when punching a copper plate, steel plate, stainless steel plate, etc. The purpose is to provide.

上記課題を解決するための請求項１に記載の発明は、打ち抜きプレス金型であって、上型の昇降によってピストンが作動せしめられる空気圧縮機を前記プレス加工機に組み込み配設するとともに、蓄圧器を介して中空パンチの中空部へ圧縮空気を導く管路と、前記中空パンチのストロークに対応して中空パンチの中空部へ送気する「開」のタイミングが決定される圧縮空気用バルブと、圧縮空気用バルブを「開」とするタイミング設定手段とを有する打ち抜きかす除去手段を有する打ち抜きプレス金型である。   The invention described in claim 1 for solving the above-mentioned problem is a punching press die, in which an air compressor in which a piston is operated by raising and lowering an upper die is incorporated in the press machine, A conduit that guides compressed air to the hollow part of the hollow punch through a vessel, and a valve for compressed air that determines the timing of "opening" for sending air to the hollow part of the hollow punch in response to the stroke of the hollow punch; A punching press die having punching and fretting removal means having timing setting means for opening the compressed air valve.

請求項２に記載の発明は、圧縮空気用バルブを「開」とするタイミング設定手段が、上型の下降によって前記圧縮空気用バルブ開閉用ステムに当接して前記圧縮空気用バルブを「開」とする、その高さを調節可能なバルブ作動ロッドである請求項１に記載の打ち抜きかす除去手段を有する打ち抜きプレス金型である。 According to the second aspect of the present invention, the timing setting means for opening the compressed air valve contacts the compressed air valve opening / closing stem by lowering the upper mold and opens the compressed air valve. The punch press die having punch debris removal means according to claim 1, which is a valve operating rod whose height can be adjusted.

請求項３に記載の発明は、蓄圧器が、空気圧縮機のシリンダと軸心を共有し、ピストンに設けられる逆止弁を介して圧縮空気が送り込まれるとともに円筒状ケーシングの下部がピストンに当接して上型の下降過程でピストンを押し下げ空気を圧縮するよう構成するとともに、その上部が管路に連通するものである請求項１又は請求項２に記載の打ち抜きかす除去手段を有する打ち抜きプレス金型である。   According to a third aspect of the present invention, the accumulator shares an axial center with the cylinder of the air compressor, compressed air is fed through a check valve provided in the piston, and the lower portion of the cylindrical casing contacts the piston. 3. A punching press die having punching and removing means according to claim 1 or 2, wherein the piston is pushed down in the lowering process of the upper die so as to compress the air, and the upper part thereof communicates with the pipe line. It is a type.

本発明によれば、空気圧縮機は打ち抜きプレス金型の上型の下降によって空気を圧縮するものであってプレス金型に組み込み（built-in）されてものであるから、別途圧縮空気源を必要とすることなく２ＭＰａ以上の高圧空気を得られ、これをパンチのストロークと対応させて瞬時にパンチ下端部から打ち抜き抜き直後のかすに適用して、たとえば銅板や鋼板ステンレス鋼板等を打ち抜くときも、かすをかす排出口下部へ確実に落下させてかす上がりを完全に防ぐことができる。而して、打ち抜き状態やダイにおける切り刃の摩耗が、ダイ側の摩擦係数を大きくする手段によるように摩耗を大きくすることがなく、安定して確実にかすの除去を行うことができる。   According to the present invention, the air compressor compresses air by lowering the upper die of the punching press die and is built-in to the press die. Even when high pressure air of 2 MPa or more can be obtained without necessity, and this is applied to the scrap immediately after punching from the lower end of the punch corresponding to the stroke of the punch, for example, when punching a copper plate or a stainless steel plate The debris can be surely dropped to the bottom of the debris discharge port to completely prevent the debris from rising. Thus, it is possible to stably and surely remove the debris without increasing the wear of the cutting edge or the cutting edge of the die as in the means for increasing the friction coefficient on the die side.

請求項２に記載の発明によるときは、シンプルな構成によって圧縮空気用バルブを「開」とするタイミングを確実に設定することができるとともに、「開」である時間も調節可能である。   According to the second aspect of the present invention, the timing for opening the compressed air valve can be reliably set with a simple configuration, and the time for opening can be adjusted.

請求項３に記載の発明によるときは、プレス金型の上型と基台間に空気圧縮機と蓄圧器（accumulator）が鉛直方向に連続して組み込まれているものであるから、高圧空気供給源を有する打ち抜きプレス金型がコンパクトとなる。   According to the invention described in claim 3, since the air compressor and the accumulator are continuously incorporated in the vertical direction between the upper die and the base of the press die, the high-pressure air supply The stamping press mold with the source becomes compact.

本発明は、打ち抜きプレス金型の上型の昇降を利用した空気圧縮手段および蓄圧器をプレス加工機に組み込み（built-in）して２ＭＰａ以上の高圧空気を蓄圧器にチャージしておき、この高圧空気を、パンチの昇降ストロークに対応（同期）させて圧縮空気バルブを開閉し、ワークの打ち抜き直後に高圧空気をパンチ下端部から瞬時に衝撃的にかすに噴射することによって、かすを確実に排出口へ落下させるものである。   In the present invention, an air compressing means and a pressure accumulator utilizing raising and lowering of an upper die of a punching press mold are built-in in a press machine, and high pressure air of 2 MPa or more is charged in the accumulator. High pressure air is opened / closed in response to (synchronized with) the stroke of the punch, and the compressed air valve is opened and closed. Immediately after punching the workpiece, high pressure air is instantaneously injected into the dust from the bottom of the punch. It is to be dropped to the discharge port.

以下、本発明をその好ましい一実施例に則して詳細に説明する。図１および図２に、本発明の一実施例に係る打ち抜きプレス金型およびその動作を示す。図１は、本発明の打ち抜きかす除去手段を有する打ち抜きプレス金型を示す縦断面図、図２（ａ）〜（ｄ）は、本発明の打ち抜きかす除去手段を有する打ち抜きプレス金型の動作を示す縦断面図である。   Hereinafter, the present invention will be described in detail in accordance with a preferred embodiment thereof. 1 and 2 show a punching press die and its operation according to an embodiment of the present invention. FIG. 1 is a longitudinal sectional view showing a punching press mold having a punching debris removing means of the present invention, and FIGS. It is a longitudinal cross-sectional view shown.

図１において、１は打ち抜きプレス金型、２は中空パンチであって、その中空部９が高圧（圧縮）空気流路として機能する。３はワークであり、たとえば銅板、鋼板、ステンレス鋼板といった金属板である。４はダイであって、上部に切り刃部を有しパンチ２と相俟ってワーク３を打ち抜いて孔を形成すべく機能する。ダイ４の切り刃部の下方には、かす排出口５が形成されている。６はストリッパであって、ワーク３を挟圧してパンチ２とダイ４の切り刃部による打ち抜きを可能にする。 In FIG. 1, 1 is a punching press die, 2 is a hollow punch, and the hollow portion 9 functions as a high-pressure (compressed) air flow path. 3 is a workpiece, for example, a metal plate such as a copper plate, a steel plate, or a stainless steel plate. Reference numeral 4 denotes a die having a cutting blade portion at the upper portion and functions in combination with the punch 2 to punch out the workpiece 3 to form a hole. A waste outlet 5 is formed below the cutting blade portion of the die 4. Reference numeral 6 denotes a stripper that clamps the work 3 and enables punching by the punch 2 and the cutting edge of the die 4.

７はパンチバッキングプレート、８はパンチプレートであり、両者で上型１０を構成している。１１は圧縮空気用バルブであって、ばね１２によって、かす落としを行うとき以外は「閉」の状態とされている。１３はバルブ開閉用ステムであり、上型１０の下降によってバルブ作動ロッド１４の上端にその下端が当接して上型１０のさらなる下降によって、バルブ作動ロッド１４がばね１２の圧縮力に勝る力でバルブ開閉用ステム１３を押し上げ、圧縮空気用バルブ１１を「開」の状態とする。バルブ作動ロッド１４は、図示しないねじ機構によって、その高さを調節可能に構成されている。バルブ作動ロッド１４の高さによって、圧縮空気用バルブ１１の「開」のタイミングおよび「開」となっている時間が設定される。   7 is a punch backing plate, 8 is a punch plate, and both constitute an upper die 10. Reference numeral 11 denotes a compressed air valve, which is in a “closed” state by the spring 12 except when debris is removed. Reference numeral 13 denotes a valve opening / closing stem. The lower end of the upper mold 10 is brought into contact with the upper end of the valve operating rod 14, and the valve operating rod 14 is more powerful than the compression force of the spring 12 by further lowering the upper mold 10. The valve opening / closing stem 13 is pushed up to bring the compressed air valve 11 into the “open” state. The valve operating rod 14 is configured such that its height can be adjusted by a screw mechanism (not shown). Depending on the height of the valve operating rod 14, the “open” timing and the “open” time of the compressed air valve 11 are set.

圧縮空気用バルブ１１を「開」とするタイミング設定手段として、カム機構を利用するものや圧縮空気用バルブ１１を電磁弁とし、中空パンチ２のストロークに対応させて電気信号を入力して「開」とする手段等種々のタイミング設定手段を採ることができる。   As a timing setting means for opening the compressed air valve 11 to “open”, using a cam mechanism or the compressed air valve 11 as an electromagnetic valve, an electric signal is input in response to the stroke of the hollow punch 2 to “open”. Various timing setting means such as "" can be adopted.

圧縮空気用バルブ１１が「開」の状態とされると、２ＭＰａ以上の高圧空気が中空パンチ２の中空部（圧縮空気流路）９を通って中空パンチ２の下端部から噴射され、図２（ｄ）に示すように、ワーク３の打ち抜きかす２４をかす排出口５に衝撃的に射出、落下せしめる。   When the compressed air valve 11 is in the “open” state, high-pressure air of 2 MPa or more is injected from the lower end of the hollow punch 2 through the hollow portion (compressed air flow path) 9 of the hollow punch 2, and FIG. As shown in (d), the punch 3 of the workpiece 3 is ejected and dropped into the scraper outlet 5 shockingly.

１５は空気圧縮機であって、この実施例にあっては、蓄圧器２０の円筒状ケーシング２２の下端部に固定されているピストン１６を有し、このピストン１６がシリンダ１７内を上型１０の昇降によって昇降する。空気圧縮機１５のシリンダ１７下部には吸気弁１９が設けてあり、この吸気弁１９は、ピストン１６の上昇の際は「開」となり、ピストン１６の下降時には「閉」となる逆止弁である。   An air compressor 15 has a piston 16 fixed to the lower end portion of the cylindrical casing 22 of the accumulator 20 in this embodiment. It goes up and down by raising and lowering. An intake valve 19 is provided below the cylinder 17 of the air compressor 15, and this intake valve 19 is a check valve that is “open” when the piston 16 is raised and “closed” when the piston 16 is lowered. is there.

一方、ピストン１６には逆止弁１８が設けてあり、ピストン１６の上昇時には「閉」の状態となり、蓄圧器からの高圧空気の流出を止める。上型１０の下降によってピストン１６が下降し、シリンダ１７内の空気の圧力が上昇して所定の圧力となったときに「開」となり、２ＭＰａ以上の圧力の圧縮空気を蓄圧器（accumulator）２０内に供給する。蓄圧器２０は、打ち抜きプレス金型１の外に設けることもできる。 On the other hand, the piston 16 is provided with a check valve 18, which is in a “closed” state when the piston 16 is raised, and stops the flow of high-pressure air from the pressure accumulator. When the upper die 10 descends, the piston 16 descends, and when the air pressure in the cylinder 17 rises to a predetermined pressure, it is “open”, and compressed air with a pressure of 2 MPa or more is stored in the accumulator 20. Supply in. The pressure accumulator 20 can also be provided outside the punching press die 1 .

２１は圧縮空気供給口であって、管路２３を介して圧縮空気用バルブ１１が「開」のときに、高圧空気を中空パンチ２の下端部から噴射すべく、圧縮空気を供給する。この実施例においては、パンチホルダ７とパンチパッド８に刻設される断面半円形或いはコ字状の溝を合わせて断面円形或いは方形状の管路２３を形成している。高圧空気の気密性を高めるべく、パンチバッキングプレート７およびパンチプレート８間にゴム等のシール材を管路２３に沿って延在せしめパンチバッキングプレート７およびパンチプレート８を緊締する。   Reference numeral 21 denotes a compressed air supply port, which supplies compressed air so as to inject high-pressure air from the lower end of the hollow punch 2 when the compressed air valve 11 is “open” via the conduit 23. In this embodiment, a semicircular or U-shaped groove formed in the punch holder 7 and punch pad 8 is combined to form a pipe 23 having a circular or square cross section. In order to enhance the hermeticity of the high-pressure air, a seal material such as rubber is extended along the pipe line 23 between the punch backing plate 7 and the punch plate 8, and the punch backing plate 7 and the punch plate 8 are tightened.

次に、上記のように構成される本発明の打ち抜きかす除去手段を有する打ち抜きプレス金型の動作を、図２（ａ）〜（ｂ）に則して説明する。図２（ａ）に、上型１０が上死点にある状態を示す。このとき、圧縮空気用バルブ１１は、ばね１２によって「閉」の状態とされている。図２（ｂ）に、上型１０が下降している途次の状態を示す。この状態で、空気圧縮機１５のピストン１６が下降し、シリンダ１７内の空気を圧縮していく。図２（ｃ）に示す状態において、中空パンチ２によるワーク３の打ち抜き加工が開始される。   Next, the operation of the punching press die having the punching and removing means of the present invention configured as described above will be described with reference to FIGS. FIG. 2A shows a state where the upper mold 10 is at the top dead center. At this time, the compressed air valve 11 is in a “closed” state by the spring 12. FIG. 2B shows a state where the upper mold 10 is descending. In this state, the piston 16 of the air compressor 15 descends and compresses the air in the cylinder 17. In the state shown in FIG. 2C, punching of the workpiece 3 by the hollow punch 2 is started.

この時点で、圧縮空気用バルブ１１下部のバルブ開閉用ステム１３の下端部がバルブ作動ロッド１４の上端に当接し、上型１０のさらなる下降によってバルブ作動ロッド１４がバルブ開閉用ステム１３をばね１２の力に打ち勝って上昇せしめ、圧縮空気用バルブ１１を「開」の状態とする。そうすると、中空パンチ２の下端部から２ＭＰａ以上の高圧空気が噴出され、図２（ｄ）に示すように、打ち抜きかす２４を衝撃的にかす排出口５に射出、落下せしめる。   At this point, the lower end of the valve opening / closing stem 13 below the compressed air valve 11 abuts on the upper end of the valve operating rod 14, and the valve operating rod 14 causes the valve opening / closing stem 13 to spring against the spring 12 by further lowering of the upper mold 10. Overcoming this force, the compressed air valve 11 is brought into an “open” state. Then, high-pressure air of 2 MPa or more is ejected from the lower end portion of the hollow punch 2 and, as shown in FIG.

図２（ｃ）に示す状態で、空気圧縮機１５におけるピストン１６が最も下降した状態となり、空気の圧力が最も高くなる。ピストン１６が下降してシリンダ１７内が所定の圧力以上となった時点で、シリンダ１７内から高圧空気が蓄圧器２０内へ送り込まれる。   In the state shown in FIG. 2 (c), the piston 16 in the air compressor 15 is in the most lowered state, and the air pressure is the highest. When the piston 16 descends and the inside of the cylinder 17 reaches a predetermined pressure or higher, high-pressure air is sent from the cylinder 17 into the accumulator 20.

而して、蓄圧器２０内には２ＭＰａといった高圧空気が蓄えられ、この高圧空気によって図２（ｄ）に示すように、打ち抜きかす２４を衝撃的にかす排出口５に射出、落下せしめる。   Thus, high pressure air of 2 MPa is stored in the pressure accumulator 20, and the high pressure air causes the punched waste 24 to be injected and dropped into the waste outlet 5 as shown in FIG. 2 (d).

本発明の一実施例に係る、打ち抜きかす除去手段を有する打ち抜きプレス金型を示す縦断面図The longitudinal cross-sectional view which shows the punching press metal mold | die which has a punching | scraping removal means based on one Example of this invention 本発明の一実施例に係る、打ち抜きかす除去手段を有する打ち抜きプレス金型の動作を示す縦断面図（ａ）は上型が上死点にあるときの状態を示す縦断面図 （ｂ）は上型の下降途次の状態を示す縦断面図 （ｃ）は中空パンチによる打ち抜き開始時点の状態を示す縦断面図 （ｄ）は打ち抜きかすを高圧空気によって射出、落下させているときの状態を示す縦断面図である。The longitudinal cross-sectional view (a) which shows the operation | movement of the punching press metal mold | die which has a punch debris removal means based on one Example of this invention is a longitudinal cross-sectional view which shows a state when an upper mold | die is in a top dead center (b) is (C) is a longitudinal sectional view showing a state at the time of starting punching with a hollow punch. (D) is a state when the punching waste is injected and dropped by high-pressure air. It is a longitudinal cross-sectional view shown. 従来の打ち抜きプレス加工機において、かす上がりを示す縦断面図Longitudinal sectional view showing scumming in a conventional punching press machine

符号の説明Explanation of symbols

１ 打ち抜きプレス金型
２ 中空パンチ
３ ワーク
４ ダイ
５ かす排出口
６ ストリッパ
７ パンチバッキングプレート
８ パンチプレート
９ 中空部（圧縮空気流路）
１０ 上型
１１ 圧縮空気用バルブ
１２ ばね
１３ バルブ開閉用ステム
１４ バルブ作動ロッド
１５ 空気圧縮機
１６ ピストン
１７ シリンダ
１８ 逆止弁
１９ 吸気弁
２０ 蓄圧器
２１ 圧縮空気供給口
２２ 円筒状ケーシング
２３ 管路
２４ 打ち抜きかす
１０２ パンチ
１０４ ダイ
１０５ かす排出口
１０６ ワーク
１０７ かす
１０７ａ パンチの上昇につれダイの上に上がったかす
１０７ｂ ダイに嵌ったかす
１０７ｃ 落とされたかす 1 punching die 2 hollow punch 3 work 4 die 5 waste outlet 6 stripper 7 punch backing plate 8 punch plate 9 hollow part (compressed air flow path)
DESCRIPTION OF SYMBOLS 10 Upper mold | type 11 Valve for compressed air 12 Spring 13 Stem for valve opening / closing 14 Valve operating rod 15 Air compressor 16 Piston 17 Cylinder 18 Check valve 19 Intake valve 20 Accumulator 21 Compressed air supply port 22 Cylindrical casing 23 Pipe line 24 Punches 102 Punch 104 Die 105 Drain outlet 106 Work 107 Dust 107a As the punch rises, raises above the die 107b Dash that fits into the die 107c Draws down

Claims (3)

打ち抜きプレス金型であって、上型の昇降によってピストンが作動せしめられる空気圧縮機を前記プレス金型に組み込み配設するとともに、蓄圧器を介して中空パンチの中空部へ圧縮空気を導く管路と、前記中空パンチのストロークに対応して中空パンチの中空部へ送気する「開」のタイミングが決定される圧縮空気用バルブと、圧縮空気用バルブを「開」とするタイミング設定手段とを配設してなる打ち抜きプレス金型。   Pipe line for punching press die, in which an air compressor whose piston is operated by raising and lowering the upper die is installed in the press die and the compressed air is led to the hollow part of the hollow punch through the pressure accumulator And a compressed air valve for determining the timing of “open” for supplying air to the hollow portion of the hollow punch in accordance with the stroke of the hollow punch, and a timing setting means for opening the compressed air valve. A punching press die that is arranged. 圧縮空気用バルブを「開」とするタイミング設定手段が、上型の下降によって前記圧縮空気用バルブ開閉用ステムに当接して前記圧縮空気用バルブを「開」とする、その高さを調節可能なバルブ作動ロッドである打ち抜きかす除去手段を有する打ち抜きプレス金型。   The timing setting means for opening the compressed air valve can be adjusted by contacting the compressed air valve opening / closing stem by lowering the upper mold and opening the compressed air valve. Punching press die having punching and debris removing means which is a simple valve operating rod. 蓄圧器が、空気圧縮機のシリンダと軸心を共有し、ピストンに設けられる逆止弁を介して圧縮空気が送り込まれるとともに円筒状ケーシングの下部がピストンに当接して上型の下降過程でピストンを押し下げ空気を圧縮するよう構成するとともに、その上部が管路に連通するものである請求項１又は請求項２に記載の打ち抜きかす除去手段を有する打ち抜きプレス金型。   The accumulator shares the axis with the cylinder of the air compressor, and compressed air is fed through a check valve provided in the piston, and the lower part of the cylindrical casing comes into contact with the piston, and the piston moves in the lowering process of the upper mold. A punching press die having punching and removing means according to claim 1 or 2, wherein the upper portion communicates with a pipe line while pressing down and compressing air.
JP2008297432A 2008-11-21 2008-11-21 Punching press mold having punching and removing means Expired - Fee Related JP5046048B2 (en)

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CN104722643A (en) * 2014-08-08 2015-06-24 毛守玠 Novel adjustable punching die
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CN113579076A (en) * 2021-08-06 2021-11-02 滁州市永达机械科技有限公司 Refrigerator fan housing shaping panel beating mould
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CN103480725A (en) * 2013-09-30 2014-01-01 大连益联金属成型有限公司 Fan guard upper surface punching die
CN103480717A (en) * 2013-09-30 2014-01-01 大连益联金属成型有限公司 Coned workpiece discharging die
CN104722643A (en) * 2014-08-08 2015-06-24 毛守玠 Novel adjustable punching die
CN104722643B (en) * 2014-08-08 2016-06-15 毛守玠 A kind of adjustable punching die
CN107962130A (en) * 2017-09-18 2018-04-27 东莞市日信钢模配件有限公司 A kind of built-in air-cylinder type discharging structure
JP2020015156A (en) * 2018-07-27 2020-01-30 トヨタ車体株式会社 Punching press die
JP7040343B2 (en) 2018-07-27 2022-03-23 トヨタ車体株式会社 Drilling press mold
CN110711813A (en) * 2019-09-17 2020-01-21 广东水利电力职业技术学院（广东省水利电力技工学校） Pneumatic type blanking and separating device
KR102364561B1 (en) 2020-04-17 2022-02-18 주식회사 동호에이텍 Mold for punching semiconductor leadframes
WO2021210760A1 (en) * 2020-04-17 2021-10-21 주식회사 동호에이텍 Semiconductor lead frame punching mold enabling easy scrap disposal
KR20210128612A (en) * 2020-04-17 2021-10-27 주식회사 동호에이텍 Mold for punching semiconductor leadframes for easy scrap removal
CN113172696A (en) * 2021-04-08 2021-07-27 湖州澄泰氟塑环保再生有限公司 Production equipment for regenerating PTFE filler
CN113172696B (en) * 2021-04-08 2022-07-26 湖州澄泰氟塑环保再生有限公司 Production equipment for regenerating PTFE filler
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CN113695452A (en) * 2021-09-27 2021-11-26 四川成飞集成科技股份有限公司 Mechanism for cleaning scrap iron of stamping die
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