JPH08238527A - Scum rising preventing structure for punching die - Google Patents
Scum rising preventing structure for punching dieInfo
- Publication number
- JPH08238527A JPH08238527A JP4169095A JP4169095A JPH08238527A JP H08238527 A JPH08238527 A JP H08238527A JP 4169095 A JP4169095 A JP 4169095A JP 4169095 A JP4169095 A JP 4169095A JP H08238527 A JPH08238527 A JP H08238527A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- punching
- die
- cam plate
- work piece
- 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.)
- Granted
Links
Landscapes
- Punching Or Piercing (AREA)
- Lead Frames For Integrated Circuits (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はリードフレームの製造等
に使用する打抜金型のかす上がり防止構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blow-up preventing structure for a punching die used for manufacturing a lead frame or the like.
【０００２】[0002]
【従来の技術】図６はプレス打抜加工によりリードフレ
ームを製造する際にリードフレーム材をサイドカットし
てリードフレームを所定の幅寸法に形成している様子を
示す。同図でＡ部分が所定長さごとパンチによってサイ
ドカットする部分である。このサイドカットは素材のス
リッター歪みを取りのぞくために行われるものである。2. Description of the Related Art FIG. 6 shows a state in which a lead frame material is side-cut to form a lead frame with a predetermined width when a lead frame is manufactured by press punching. In the figure, the portion A is a portion for side cutting with a predetermined length by punching. This side cut is done to remove the slitter distortion of the material.
【０００３】図７はリードフレームのサイドカットで用
いられている打抜金型の従来例を示す。図７(a) は打抜
金型の平面図、図７(b) は断面図である。１０は被加工
品たるリードフレーム材、１２はパンチによって打ち抜
かれる被加工品の打抜部分、１４は金型ダイ、１６は抜
きカスである。この例では抜きカス１６は金型ダイ１４
の抜き孔１８内に落下するが、打ち抜き時に抜きかす１
６がパンチに付いて浮き上がるかす上がりを防止するた
め金型ダイ１４の抜き孔１８からエアで吸引するといっ
たことがなされる。FIG. 7 shows a conventional example of a punching die used for side cutting of a lead frame. FIG. 7 (a) is a plan view of the punching die, and FIG. 7 (b) is a sectional view. Reference numeral 10 is a lead frame material as a work piece, 12 is a punched portion of the work piece that is punched by a punch, 14 is a die die, and 16 is a scrap. In this example, the punch scrap 16 is the die die 14
Although it falls into the hole 18 of the hole,
6 is attached to the punch and air is sucked from the punching hole 18 of the die die 14 in order to prevent the lift-up of the dust.
【０００４】図８は打抜金型の他の従来例で抜き孔１８
内に突部１４ａを突設した金型ダイ１４を使用する例で
ある。図８(b) に示すように突部１４ａは抜きカス１６
が突部１４ａの端面と抜き孔１８の壁面とにくい付くよ
うに設け、これによってかす上がりを防止する。図８に
示すように一方が開いた形状で打抜加工する場合はリー
ドフレームを製造する場合に限らず形状的に抜きかすが
金型ダイにくい付かないため強制的にエアで吸引したり
金型ダイの構造によって抜きかすをくい付きやすくして
加工している。FIG. 8 shows a punching hole 18 in another conventional example of a punching die.
This is an example of using a die die 14 having a protrusion 14a provided therein. As shown in FIG. 8 (b), the protrusion 14a is formed by removing the scrap 16
Are provided so as to be hard to attach to the end surface of the protrusion 14a and the wall surface of the hole 18, thereby preventing scraping. When punching with one side open as shown in FIG. 8, it is not limited to the case of manufacturing a lead frame, but the shape of the punched residue is not easily attached to the die, so that it is forcibly sucked by air or the die is pressed. Due to the structure, the processing is done to make it easier to attach the scraps.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、エアで
抜きかすを吸引して加工する場合はエアの吸引量が大き
いと被加工品をも吸引してしまって被加工品の送りミス
が生じる原因になり、また、金型ダイに上記のような突
部１４ａを設けて抜きかすをくい付きやすくする方法に
よる場合は被加工品の幅寸法が異なったり被加工品の搬
送コースを調整すると抜きかすのくい付き量が変動し確
実に抜きかすをくい付かせることができない等の問題点
があった。However, in the case where air is used to suck and remove the dregs, if the air suction amount is large, the workpiece is also sucked, which may cause a feed error of the workpiece. Further, in the case where the above-mentioned protrusion 14a is provided on the die for facilitating the clinging of the scraps, the scraps may be removed when the width dimension of the work piece is different or the conveyance course of the work piece is adjusted. There was a problem that the amount of bite fluctuated and it was not possible to reliably bite the residue.
【０００６】本発明はこれら問題点を解消すべくなされ
たものであり、その目的とするところは被加工品の幅寸
法に変動があったり被加工品を加工装置にかけた際の調
整等で変動があったりした場合でも確実にかす上がりを
防止でき、安定した打抜加工を行うことができる打抜金
型のかす上がり防止構造を提供するにある。The present invention has been made to solve these problems, and its purpose is to change the width dimension of a work piece or to adjust it when the work piece is placed on a processing apparatus. It is an object of the present invention to provide a structure for preventing the scraping of the punching die, which can prevent the scraping even if there is any, and perform stable punching.
【０００７】[0007]
【課題を解決するための手段】本発明は上記目的を達成
するため次の構成を備える。すなわち、金型ダイとパン
チガイドにより被加工品を挟圧し、パンチにより被加工
品を打抜加工する打抜金型において、前記被加工品の打
抜部分の側縁部と前端部を略平行にしつつ前記パンチガ
イドの移動方向に対し直交する方向に進退動可能に支持
されるとともに、打抜時に前記パンチガイドが被加工品
を金型ダイに向け押し下げた際に前端部に前記側縁部が
当接して後退し、パンチにより打ち抜きされた抜きかす
が下面よりも下側に押し出された後に抜きかすの上面を
押さえるべく前進するカム板を設けたことを特徴とす
る。また、前記カム板を前記被加工品の側縁部に向けて
常時付勢して設けたことを特徴とする。また、カム板の
前端部にテーパ面を設け、被加工品を打ち抜き開始時に
前記被加工品の打抜部分の側縁部が前記テーパ面の平面
範囲内にあるようカム板をセットすることを特徴とす
る。The present invention has the following constitution in order to achieve the above object. That is, in a punching die in which a work piece is pinched by a die die and a punch guide and the work piece is punched by a punch, the side edge portion and the front end portion of the punched portion of the work piece are substantially parallel to each other. While being supported so as to be movable back and forth in a direction orthogonal to the moving direction of the punch guide, the side edge portion is provided at the front end portion when the punch guide pushes down the workpiece toward the die during punching. Is abutted and retreated, and a cam plate is provided to move forward so as to press the upper surface of the scraps after the scraps punched out by the punch are pushed below the lower surface. Further, the cam plate is always biased and provided toward a side edge portion of the workpiece. Further, a taper surface is provided at the front end of the cam plate, and when the punching of the work piece is started, the cam plate is set so that the side edge of the punched part of the work piece is within the plane range of the taper surface. Characterize.
【０００８】[0008]
【作用】パンチガイドにより被加工品が金型ダイに向け
て押し下げられる際に、被加工品の打抜部分の側縁部が
カム板の前端部に当接し、パンチガイドの押し下げ力に
よりカム板が後退する。被加工品はパンチにより打抜加
工され抜きかすはカム板の下面よりも下方に移動する。
抜きかすがカム板の下面を通過するとカム板は前進し抜
きかすの上面を押さえ、パンチが上昇する際に抜きかす
が浮き上がることを防止する。When the work piece is pushed down by the punch guide toward the die, the side edge of the punched part of the work piece contacts the front end of the cam plate, and the pushing force of the punch guide pushes down the cam plate. Will retreat. The work piece is punched by the punch and the dross moves below the lower surface of the cam plate.
When the skid passes the lower surface of the cam plate, the cam plate moves forward and presses the upper surface of the skid to prevent the skid from rising when the punch rises.
【０００９】[0009]
【実施例】以下、本発明の好適な実施例を添付図面に基
づいて説明する。図１および図２は本発明に係る打抜金
型のかす上がり防止構造の一実施例の構成を示す平面図
および断面図である。図１で打抜部分１２、金型ダイ１
４、抜き孔１８の構成は図７に示す従来例と同様であ
る。２０は金型ダイ１４上で抜き孔１８に面して設置し
たガイドプレートである。２０ａはガイドプレート２０
を厚さ方向に貫設した貫通孔である。貫通孔２０ａは平
面形状が矩形状に形成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 and FIG. 2 are a plan view and a cross-sectional view showing the structure of one embodiment of a punch-up die scratch prevention structure according to the present invention. Punched portion 12 and die 1 in FIG.
4 and the structure of the hole 18 is the same as that of the conventional example shown in FIG. Reference numeral 20 is a guide plate installed on the die die 14 so as to face the hole 18. 20a is a guide plate 20
Is a through hole formed by penetrating in the thickness direction. The through hole 20a is formed to have a rectangular planar shape.
【００１０】２４は金型ダイ１４上でスライド自在に支
持されるとともに後部側を前記貫通孔２０ａに係合して
装着したカム板である。カム板２４は板状に形成した部
材であり、図２に示すように、ガイドプレート２０の抜
き孔１８に面する側面部の下部に貫通孔２０ａに連通し
て貫設したガイド孔２０ｂに挿通して装着する。カム板
２４の後部上面にはカム板２４の移動位置を規制するた
めの係合突部２４ａを突設する。２６はカム板２４の後
端面と貫通孔２０ａの内側面との間を弾発するスプリン
グである。Reference numeral 24 is a cam plate which is slidably supported on the die 14 and mounted on the rear side by engaging with the through hole 20a. The cam plate 24 is a plate-shaped member, and as shown in FIG. 2, the cam plate 24 is inserted into a guide hole 20b which is provided in a lower portion of a side surface of the guide plate 20 which faces the cutout hole 18 so as to communicate with the through hole 20a. And put it on. An engaging protrusion 24 a for restricting the moving position of the cam plate 24 is provided on the upper surface of the rear portion of the cam plate 24. Reference numeral 26 is a spring that elastically springs between the rear end surface of the cam plate 24 and the inner surface of the through hole 20a.
【００１１】図１、２はスプリング２６の付勢力によっ
て係合突部２４ａの前端面が貫通孔２０ａの内側面に当
接した状態でカム板２４がもっとも前進した位置にある
状態である。カム板２４はスプリング２６の付勢力に抗
して進退動するものであるが、このカム板２４の進退動
は打抜金型で被加工品を打抜加工する際の押圧力を利用
してなされる。すなわち、図１に示すようにカム板２４
はもっとも前進した状態で打抜部分１２の側縁部とカム
板２４の前端が一部重複するように設定し、図２に示す
ようにカム板２４の前端部に設けたテーパ面２４ｂの平
面範囲内に打抜部分１２の側縁部すなわち、被加工品１
０の側縁部が位置するように設定する。1 and 2 show a state in which the cam plate 24 is in the most advanced position with the front end surface of the engaging projection 24a abutting the inner surface of the through hole 20a by the urging force of the spring 26. The cam plate 24 moves back and forth against the urging force of the spring 26. The cam plate 24 moves back and forth by utilizing the pressing force when punching a workpiece with a punching die. Done. That is, as shown in FIG.
Is set so that the side edge of the punched portion 12 and the front end of the cam plate 24 partially overlap with each other in the most advanced state, and the plane of the tapered surface 24b provided at the front end of the cam plate 24 as shown in FIG. The side edge of the punched portion 12 within the range, that is, the workpiece 1
Set so that the side edge of 0 is located.
【００１２】このようにカム板２４を構成することによ
ってかす上がりを防止した打抜加工が可能になる。図３
は打抜加工時のカム板２４等の動作の様子を示す。図３
(a) はパンチ２８が上死点にある状態で被加工品１０が
打抜位置まで送り込まれ打抜動作が開始される直前の状
態である。カム板２４の係合突部２４ａはスプリング２
６の付勢力によって貫通孔２０ａの内側面に当接してい
る。３０はパンチがイドである。By configuring the cam plate 24 in this manner, punching can be performed while preventing the scrap from rising. FIG.
Shows the operation of the cam plate 24 and the like during punching. FIG.
(a) is a state immediately before the punching operation is started by feeding the workpiece 10 to the punching position with the punch 28 at the top dead center. The engagement protrusion 24a of the cam plate 24 is formed by the spring 2.
The urging force of 6 makes contact with the inner surface of the through hole 20a. 30 is a punch.
【００１３】図３(b) はパンチガイド３０が下降し、金
型ダイ１４とパンチガイド３０との間で被加工品１０を
クランプした状態である。パンチガイド３０が下降し被
加工品１０を金型ダイ１４との間で押さえる際に抜き孔
１８側に延出する被加工品１０の側縁部がカム板２４の
テーパ面２４ｂに当接し、被加工品１０が下動すること
によりスプリング２６の付勢力に抗してカム板２４が押
され後方に移動する。図３(b) はカム板２４が移動して
係合突部２４ａの前端面と貫通孔２０ａの内側面とが若
干離間した状態である。FIG. 3B shows a state in which the punch guide 30 is lowered and the workpiece 10 is clamped between the die die 14 and the punch guide 30. When the punch guide 30 descends and presses the work piece 10 against the die die 14, the side edge portion of the work piece 10 that extends toward the punch hole 18 contacts the tapered surface 24b of the cam plate 24, When the workpiece 10 moves downward, the cam plate 24 is pushed against the urging force of the spring 26 and moves rearward. FIG. 3B shows a state in which the cam plate 24 moves and the front end surface of the engaging projection 24a and the inner surface of the through hole 20a are slightly separated.
【００１４】図３(c) はパンチ２８がさらに下動し被加
工品１０を打ち抜きした状態である。抜きかす１６がカ
ム板２４のテーパ面２４ｂを通過してカム板２４の下面
側に押し下げられ、パンチ２８の側面にテーパ面２４ｂ
の突端が当接する。抜きかす１６とパンチ２８との間の
段差によりカム板２４が若干前進する。図３(d) は打ち
抜き後にパンチ２８が上動し、カム板２４とパンチ２８
との当接が解除された状態である。パンチ２８が上昇す
る際にはカム板２４はスプリング２６の付勢力によって
前進し抜きかす１６をカム板２４の下面に係止した状態
を維持するからかす上がりが確実に防止される。FIG. 3C shows a state in which the punch 28 is further moved downward and the workpiece 10 is punched out. The scraps 16 pass through the tapered surface 24b of the cam plate 24 and are pushed down to the lower surface side of the cam plate 24, and the tapered surface 24b is formed on the side surface of the punch 28.
The tip of the abuts. The cam plate 24 advances slightly due to the step between the punch residue 16 and the punch 28. In FIG. 3 (d), the punch 28 moves upward after punching, and the cam plate 24 and the punch 28 move.
The contact with is released. When the punch 28 rises, the cam plate 24 is moved forward by the urging force of the spring 26 to maintain the state in which the punch residue 16 is locked to the lower surface of the cam plate 24, so that the rise of the residue is reliably prevented.
【００１５】こうして、実施例の打抜金型ではパンチガ
イド３０およびパンチ２８が上下に押動されるごとにカ
ム板２４が進退動し、抜きかす１６がカム板２４の下側
に排出されることによって、かす上がりを完全に防止し
て打抜加工がなされる。Thus, in the punching die of the embodiment, the cam plate 24 moves forward and backward each time the punch guide 30 and the punch 28 are pushed up and down, and the punch residue 16 is discharged to the lower side of the cam plate 24. As a result, the punching process is performed while completely preventing the scrap from rising.
【００１６】図４、５は上記実施例と同様にカム板２４
を用いてかす上がりを防止した打抜金型の他の実施例を
示す。この実施例はパンチ２８によって被加工品１０を
打ち抜く際に打抜部分の両側縁部がともにアウトカット
となる場合の例である。図４に示すようにこの実施例の
打抜金型では打抜部分１２の両側縁部に合わせて各々前
端面をテーパ面としたカム板２４、２４を設け、カム板
２４、２４のテーパ面の平面範囲内に打抜部分１２の側
縁部すなわち被加工品の側縁部が位置するように配置す
る。4 and 5 show the cam plate 24 as in the above embodiment.
Another embodiment of the punching die in which the scraping up is prevented by using. This embodiment is an example in which both side edges of the punched portion are outcut when punching the workpiece 10 by the punch 28. As shown in FIG. 4, in the punching die of this embodiment, cam plates 24 and 24 having front end surfaces each having a tapered surface are provided in accordance with both side edges of the punched portion 12, and the tapered surfaces of the cam plates 24 and 24 are provided. The side edge portion of the punched portion 12, that is, the side edge portion of the work piece is located within the plane range of.
【００１７】金型ダイ上にガイドプレート２０を設けて
カム板２４、２４をスライド自在に支持し、カム板２
４、２４が抜き孔１８方向へ突出する向きにスプリング
２６で付勢すること、カム板２４、２４に係合突部を設
けて前進位置を規制する等の構成は上記実施例と同様で
ある。なお、本実施例では抜き孔１８内にカム板２４、
２４を突出させ抜きかす１６の両側縁部をカム板２４、
２４で係止できるようにするためパンチ２８の側面にカ
ム板２４、２４を収容できる凹部２８ａ、２８ａを設け
ている。The cam plate 2 is provided with a guide plate 20 on the die to support the cam plates 24, 24 slidably.
The structure in which the springs 4 and 24 are biased by the spring 26 in the direction of projecting toward the hole 18 and the cam plates 24 and 24 are provided with engaging protrusions to regulate the forward movement position is the same as that of the above-described embodiment. . In the present embodiment, the cam plate 24,
The cam plate 24,
In order to be able to lock with 24, recesses 28a, 28a for accommodating the cam plates 24, 24 are provided on the side surface of the punch 28.
【００１８】本実施例の打抜金型を用いて打抜加工する
場合も、パンチ２８で被加工品１０を打ち抜く際にま
ず、パンチガイドで被加工品を押し下げることによって
被加工品１０によりカム板２４、２４が後方に押し下げ
られ、パンチ２８で打ち抜くことによって抜きかす１６
がカム板２４、２４の下方に押し出され、パンチ２８が
上昇する際にはカム板２４、２４が抜きかす１６の上面
を係止することによって完全にかす上がりを防止する。Also in the case of punching using the punching die of the present embodiment, when punching the workpiece 10 with the punch 28, first, the punch guide pushes down the workpiece to cam the workpiece 10. The plates 24, 24 are pushed backward and punched out by a punch 28 to remove the scraps 16.
Is pushed below the cam plates 24, 24, and when the punch 28 rises, the cam plates 24, 24 lock the upper surface of the scrap 16 to completely prevent the scrap from rising.
【００１９】なお、上記各実施例で説明したカム板を用
いる構成とともに、抜きかすを金型ダイの抜き孔内に吸
引するエア吸引機構や上型からエアブローすることによ
り、さらに確実にかす上がりを防止することができる。
また、上記実施例に示すように、本発明に係る打抜金型
のかす上がり防止構造は打抜部分の一方の側縁をアウト
カットする場合にも両側縁をアウトカットする場合にも
ともに適用することができる。また、加工対象物として
はリードフレームに限らず、種々の打抜加工に用いる金
型構造として適用することができる。In addition to the structure using the cam plate described in each of the above-mentioned embodiments, the air suction mechanism for sucking the scraps into the hole of the die and the air blow from the upper die further reliably raise the scrap. Can be prevented.
Further, as shown in the above-mentioned embodiment, the structure for preventing fraying of the punching die according to the present invention is applied both when the one side edge of the punched portion is outcut and when both side edges are outcutted. can do. Further, the object to be processed is not limited to the lead frame and can be applied as a die structure used for various punching processes.
【００２０】[0020]
【発明の効果】本発明に係る打抜金型のかす上がり防止
構造によれば、上述したように、打ち抜き加工の際に抜
きかすがパンチ側に浮き上がることを確実に防止するこ
とができ、より安定した打抜加工を行うことが可能にな
る。また、これによって加工装置のトラブルの発生を好
適に抑えることができる等の著効を奏する。As described above, according to the structure of the punching die of the present invention, it is possible to surely prevent the punched dust from floating on the punch side during the punching process, which is more stable. It becomes possible to perform the punching process. Further, this brings about a remarkable effect such that the occurrence of troubles in the processing apparatus can be suitably suppressed.
【図１】打抜金型のかす上がり防止構造の一実施例の構
成を示す平面図である。FIG. 1 is a plan view showing a configuration of an embodiment of a scratch-up prevention structure of a punching die.
【図２】打抜金型のかす上がり防止構造の一実施例の構
成を示す断面図である。FIG. 2 is a cross-sectional view showing a structure of an embodiment of a punch-up die scratch prevention structure.
【図３】かす上がり防止構造を有する打抜金型の動作を
示す説明図である。FIG. 3 is an explanatory diagram showing an operation of a punching die having a structure for preventing a shaving up.
【図４】打抜金型のかす上がり防止構造の他の実施例の
構成を示す平面図である。FIG. 4 is a plan view showing the configuration of another embodiment of the scratch-up prevention structure of the punching die.
【図５】打抜金型のかす上がり防止構造の他の実施例の
構成を示す断面図である。FIG. 5 is a cross-sectional view showing the structure of another embodiment of the punch-up die shaving prevention structure.
【図６】リードフレーム材をサイドカットする様子を示
す説明図である。FIG. 6 is an explanatory view showing a state of side cutting the lead frame material.
【図７】打抜金型の従来例の構成を示す説明図である。FIG. 7 is an explanatory view showing a configuration of a conventional example of a punching die.
【図８】打抜金型の従来例の他の構成を示す説明図であ
る。FIG. 8 is an explanatory view showing another structure of a conventional punching die.
１０ 被加工品 １２ 打抜部分 １４ 金型ダイ １６ 抜きかす １８ 抜き孔 ２０ ガイドプレート ２０ａ 貫通孔 ２０ｂ ガイド孔 ２４ カム板 ２４ａ 係合突部 ２４ｂ テーパ面 ２６ スプリング ２８ パンチ ２８ａ 凹部 ３０ パンチガイド 10 Worked Product 12 Punching Part 14 Mold Die 16 Punching Dough 18 Punching Hole 20 Guide Plate 20a Through Hole 20b Guide Hole 24 Cam Plate 24a Engaging Projection 24b Tapered Surface 26 Spring 28 Punch 28a Recess 30 Punch Guide
Claims (3)
を挟圧し、パンチにより被加工品を打抜加工する打抜金
型において、 前記被加工品の打抜部分の側縁部と前端部を略平行にし
つつ前記パンチガイドの移動方向に対し直交する方向に
進退動可能に支持されるとともに、打抜時に前記パンチ
ガイドが被加工品を金型ダイに向け押し下げた際に前端
部に前記側縁部が当接して後退し、パンチにより打ち抜
きされた抜きかすが下面よりも下側に押し出された後に
抜きかすの上面を押さえるべく前進するカム板を設けた
ことを特徴とする打抜金型のかす上がり防止構造。1. A punching die in which a work piece is clamped by a die die and a punch guide, and the work piece is punched by a punch, wherein a side edge portion and a front end portion of a punched portion of the work piece. While being substantially parallel to each other, the punch guide is supported so as to be movable back and forth in a direction orthogonal to the moving direction of the punch guide, and at the time of punching, when the punch guide pushes down the workpiece toward the die, The punching die is characterized in that a cam plate is provided which is brought into contact with the side edge portions and retreats, and the punch dust punched out by the punch is pushed below the lower surface and then pushed forward to hold down the upper surface of the punch dust. A structure that prevents the rise of dross.
常時付勢して設けたことを特徴とする請求項１記載の打
抜金型のかす上がり防止構造。2. The blow-up preventing structure for a punching die according to claim 1, wherein the cam plate is always biased toward the side edge portion of the workpiece.
工品を打ち抜き開始時に前記被加工品の打抜部分の側縁
部が前記テーパ面の平面範囲内にあるようカム板をセッ
トすることを特徴とする請求項１または２記載の打抜金
型のかす上がり防止構造。3. A taper surface is provided at a front end portion of the cam plate, and the cam plate is set such that a side edge portion of a punched portion of the work piece is within a plane range of the taper surface at the time of starting punching of the work piece. The punching-up preventing structure for a punching die according to claim 1 or 2, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04169095A JP3592392B2 (en) | 1995-03-01 | 1995-03-01 | Prevention of scraping of punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04169095A JP3592392B2 (en) | 1995-03-01 | 1995-03-01 | Prevention of scraping of punching die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08238527A true JPH08238527A (en) | 1996-09-17 |
| JP3592392B2 JP3592392B2 (en) | 2004-11-24 |
Family
ID=12615430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04169095A Expired - Fee Related JP3592392B2 (en) | 1995-03-01 | 1995-03-01 | Prevention of scraping of punching die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3592392B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458237A (en) * | 2021-06-29 | 2021-10-01 | 台光五金制品（东莞）有限公司 | Stamping die capable of preventing scrap jumping and being ejected |
| CN114850313A (en) * | 2022-06-14 | 2022-08-05 | 东莞市钮纽实业有限公司 | One-step forming die for stamping button face piece |
-
1995
- 1995-03-01 JP JP04169095A patent/JP3592392B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458237A (en) * | 2021-06-29 | 2021-10-01 | 台光五金制品（东莞）有限公司 | Stamping die capable of preventing scrap jumping and being ejected |
| CN113458237B (en) * | 2021-06-29 | 2023-08-04 | 台光五金制品（东莞）有限公司 | Stamping die capable of preventing scraps from jumping and popping out |
| CN114850313A (en) * | 2022-06-14 | 2022-08-05 | 东莞市钮纽实业有限公司 | One-step forming die for stamping button face piece |
| CN114850313B (en) * | 2022-06-14 | 2024-01-09 | 东莞市钮纽实业有限公司 | One-time forming die for stamping button surface piece |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3592392B2 (en) | 2004-11-24 |
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