JP2016179535A

JP2016179535A - Punching auxiliary tool of punching machine

Info

Publication number: JP2016179535A
Application number: JP2015061877A
Authority: JP
Inventors: 昌嗣冨田; Masatsugu Tomita
Original assignee: Tsindustry Co Ltd
Current assignee: Tsindustry Co Ltd
Priority date: 2015-03-25
Filing date: 2015-03-25
Publication date: 2016-10-13

Abstract

PROBLEM TO BE SOLVED: To achieve inexpensive and sure punching with a small-sized and simple structure.SOLUTION: A deformation part 4 is provided on the inward side of a mold space 1a, which is installed in the mold space 1a of a female mold 1 of a punching machine, extended in the depth direction along the inner peripheral surface, and deformed with a resistance to both of a push-in direction into the mold space 1a and a withdrawal direction to the outside of the mold space. The deformation part 4 has a constitution in which a plurality of elastically-deformable deformation pieces 23 extending to the inward of the mold space 1a are provided in the depth direction of the mold space 1a.SELECTED DRAWING: Figure 2

Description

本発明は打抜機の打抜き補助具に関し、特に、紙材や樹脂材等を打ち抜く際にメス型内へ確実に打ち抜くことを可能とする打抜き補助具に関する。 The present invention relates to a punching assisting tool for a punching machine, and more particularly to a punching assisting tool capable of reliably punching into a female die when punching a paper material or a resin material.

折り曲げによってパッケージ等を作製するための紙材等は、パッケージ等の展開形状のうち必要な打抜き部分（屑あるいは製品部分）が各行程で確実に打ち抜かれかつ工程間の搬送時に打抜き部分が脱落しないように、打抜き部分を囲む輪郭線に沿って切り込みを入れるとともにそのうちの複数個所は切り残した状態で打抜機（トムソン）の所定部に供給される。この場合、打抜機のオス型をメス型内へ進入させるだけではいくつかの切り残し部がそのまま残って打抜き部分がメス型内へ切り離されず、打ち抜きが適正に行われないことがある。 For paper materials and the like for producing packages by bending, the necessary punched parts (debris or product parts) of the developed shape of the package etc. are reliably punched in each process, and the punched parts do not fall off during transport between processes In this way, incisions are made along the outline surrounding the punched portion, and a plurality of portions are left uncut and supplied to a predetermined portion of the punching machine (Thomson). In this case, if the male die of the punching machine is simply moved into the female die, some uncut portions remain as they are, and the punched portion is not cut into the female die, and punching may not be performed properly.

そこで、例えば特許文献１〜３に示すように、メス型内へのオス型の進入時に、切り残し部分が確実に切り離されるように、メス型内にバネ付勢された受け部材を設置して、進入してきたオス型との間で打抜き部分の外周縁を挟みつつ受け部材が押圧後退させられて切り残し部分が確実に切り離されるようにしている。 Therefore, for example, as shown in Patent Literatures 1 to 3, a spring-biased receiving member is installed in the female mold so that the uncut portion is reliably cut off when the male mold enters the female mold. The receiving member is pressed and retracted while the outer peripheral edge of the punched portion is sandwiched between the entering male type and the uncut portion is surely cut off.

特開平５−４１９７JP-A-5-4197 特開平１１−３００６９６JP-A-11-300696 特開２０１４−１３６２７８JP 2014-136278 A

しかし上記従来の構造は比較的大型かつ複雑で、設置スペースを要し高価である上に、打抜きの確実性に欠けるという問題があった。 However, the conventional structure has a problem that it is relatively large and complicated, requires an installation space, is expensive, and lacks certainty of punching.

そこで、本発明はこのような課題を解決するもので、小型かつ簡易な構造で安価であり、しかも確実な打抜きを実現できる打抜機の打抜き補助具を提供することを目的とする。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a punching assisting tool for a punching machine that can solve such problems, is small in size and has a simple structure, is inexpensive, and can realize reliable punching.

上記目的を達成するために、本発明では、打抜機のメス型（１）の型空間（１ａ）内に設置されてその内周面に沿ってその深さ方向へ延び、型空間（１ａ）内への押し込み方向および型空間外への引き出し方向のいずれへも抵抗を有して変形する変形部（４）を少なくともその型空間内方側に備える。 In order to achieve the above object, in the present invention, the die space (1a) of the female die (1) of the punching machine is installed in the die space (1a) and extends in the depth direction along the inner peripheral surface thereof. A deformation part (4) that deforms with resistance in both the inward pushing direction and the drawing out direction to the mold space is provided at least on the inner side of the mold space.

前記変形部（４）を、前記型空間（１ａ）の内方へ延びる弾性変形可能な変形片（２３，２４，７２）を前記型空間（１ａ）の深さ方向へ複数設けて構成することができる。 The deformation portion (4) is configured by providing a plurality of elastically deformable deformation pieces (23, 24, 72) extending inward of the mold space (1a) in the depth direction of the mold space (1a). Can do.

また、前記変形部（４）を、前記型空間（１ａ）の内方へ延びる弾性変形可能な繊維状の細片（８２）を前記型空間（１ａ）の深さ方向へ多数植設して構成することができる。 A large number of elastically deformable fibrous strips (82) extending inward of the mold space (1a) are implanted in the depth direction of the mold space (1a). Can be configured.

さらに、前記変形部（４）を、所定厚で前記型空間（１ａ）の内方へ延びるスポンジ体（９２）で構成することができる。 Further, the deformable portion (4) can be constituted by a sponge body (92) having a predetermined thickness and extending inward of the mold space (1a).

上記カッコ内の符号は、後述する実施形態に記載の具体的手段との対応関係を参考的に示すものである。 The reference numerals in the parentheses refer to the correspondence with specific means described in the embodiments described later.

以上のように、本発明の打抜機の打抜き補助具によれば、変形部は押し込み方向および型空間外への引き出し方向のいずれへも抵抗を有して弾性変形するから、打抜き作動時に紙材等の切残し部が上記変形部とオス型によって良好に挟持され、また型空間内へ押し込まれた打抜き部分が押込み方向へ戻ることなく型空間内に保持される。これにより確実な打抜きが実現されるとともに、打抜き補助具は小型かつ簡易な構造で安価に実現できる。 As described above, according to the punching assisting tool of the punching machine of the present invention, the deformable portion is elastically deformed with resistance in both the pushing direction and the pulling direction to the outside of the mold space. The uncut portion such as the like is favorably held between the deformed portion and the male die, and the punched portion pushed into the die space is held in the die space without returning to the pushing direction. As a result, reliable punching is realized, and the punching auxiliary tool can be realized at a low cost with a small and simple structure.

本発明の第１実施形態における、打抜き補助具を設置した型空間を有するメス型を裏面から見た斜視図である。It is the perspective view which looked at the female type | mold which has the type | mold space which installed the punching assistance tool in 1st Embodiment of this invention from the back surface. 打抜き補助具の断面図である。It is sectional drawing of a punching assistance tool. 打抜き補助具の作動を説明するメス型の型空間部分の断面図である。It is sectional drawing of the type | mold space part of the female type | mold explaining the action | operation of a punching auxiliary tool. 打抜き補助具の作動を説明するメス型の型空間部分の断面図である。It is sectional drawing of the type | mold space part of the female type | mold explaining the action | operation of a punching auxiliary tool. 打抜き補助具の作動を説明するメス型の型空間部分の断面図である。It is sectional drawing of the type | mold space part of the female type | mold explaining the action | operation of a punching auxiliary tool. 打抜き補助具の作動を説明するメス型の型空間部分の断面図である。It is sectional drawing of the type | mold space part of the female type | mold explaining the action | operation of a punching auxiliary tool. 打抜き補助具の作動を説明するメス型の型空間部分の断面図である。It is sectional drawing of the type | mold space part of the female type | mold explaining the action | operation of a punching auxiliary tool. 本発明の第２実施形態における、打抜き補助具の断面図である。It is sectional drawing of the punching assistance tool in 2nd Embodiment of this invention. 本発明の第３実施形態における、打抜き補助具の断面図である。It is sectional drawing of the punching assistance tool in 3rd Embodiment of this invention. 本発明の第４実施形態における、打抜き補助具の断面図である。It is sectional drawing of the punching assistance tool in 4th Embodiment of this invention. 本発明の第５実施形態における、打抜き補助具の断面図である。It is sectional drawing of the punching assistance tool in 5th Embodiment of this invention.

なお、以下に説明する実施形態はあくまで一例であり、本発明の要旨を逸脱しない範囲で当業者が行う種々の設計的改良も本発明の範囲に含まれる。 The embodiment described below is merely an example, and various design improvements made by those skilled in the art without departing from the gist of the present invention are also included in the scope of the present invention.

（第１実施形態）
図１には打抜機にセットされるメス型１の型空間１ａの一例を示す。なお、本図はメス型１を裏面から見たものである。本実施形態では型空間１ａはコーナ部を曲面とした略四角形状となっている。そして、型空間１ａの対向する各辺の中央にそれぞれ、本発明に係る同一形状の打抜き補助具２が設置されている。 (First embodiment)
FIG. 1 shows an example of a mold space 1a of a female mold 1 set in a punching machine. This figure shows the female die 1 as seen from the back side. In the present embodiment, the mold space 1a has a substantially rectangular shape with a curved corner. And the punching auxiliary tool 2 of the same shape which concerns on this invention is respectively installed in the center of each edge | side which the type | mold space 1a opposes.

打抜き補助具２の断面形状を図２に示す。打抜き補助具２は本実施形態では樹脂材の一体成型品で、全体が所定の幅を有する略Ｌ字形に成形されている（図１参照）。打抜き補助具２の略直角をなす一辺２１には幅方向中央に取付穴２１１が設けられて、この取付穴２１１内にビス３(図１)を挿入してメス型１の裏面に上記一辺２１が固定される。打抜き補助具２の他辺２２はメス型１の型空間１ａの内周面に沿ってその深さ方向へ延びており、本実施形態では上記他辺２２の長さは型空間１ａの深さとほぼ等しくしてある。 The cross-sectional shape of the punching aid 2 is shown in FIG. In this embodiment, the punching assisting tool 2 is an integrally molded product of a resin material, and is formed into a substantially L shape having a predetermined width as a whole (see FIG. 1). An attachment hole 211 is provided in the center in the width direction on one side 21 forming a substantially right angle of the punching assisting tool 2, and a screw 3 (FIG. 1) is inserted into the attachment hole 211 so that the one side 21 is formed on the back surface of the female die 1. Is fixed. The other side 22 of the punching assisting tool 2 extends in the depth direction along the inner peripheral surface of the mold space 1a of the female die 1. In this embodiment, the length of the other side 22 is equal to the depth of the mold space 1a. It is almost equal.

打抜き補助具２の他辺２２の、型空間１ａ内方側の半部には、変形部４として、型空間の内方へ延びる変形片２３が型空間１ａの深さ方向へ間隔をおいて複数形成されている。各変形片２３の先端部はメス型１の裏面方向（図２の下方）へ湾曲させられている。このような変形部４は、型空間１ａ内への押し込み方向（図２の下方）および型空間１ａ外への引き出し方向（図２の上方）のいずれへも所定の抵抗を有して弾性変形する。 In the half of the other side 22 of the punching assisting tool 2 on the inner side of the mold space 1a, a deformed piece 23 extending inward of the mold space is formed as a deformed part 4 at an interval in the depth direction of the mold space 1a. A plurality are formed. The distal end portion of each deformation piece 23 is curved toward the back surface of the female die 1 (downward in FIG. 2). Such a deforming portion 4 is elastically deformed with a predetermined resistance both in the direction of pushing into the mold space 1a (downward in FIG. 2) and in the direction of drawing out of the mold space 1a (upward in FIG. 2) To do.

このような構造の打抜き補助具２の作動を以下図３〜図７に基づいて説明する。図３に示すメス型１の型空間１ａ内には対称位置に、上述した打抜き補助具２が設置されている。紙材５には打抜き部分５１を囲む輪郭線に沿って切込み５２が形成されており、このような紙材がメス型１の表面に沿って移動させられて、その打抜き部分５１が型空間１ａの直上に位置させられる。この状態で、オス型６の下降に伴いその突押し部材６１が、紙材５を型空間１ａ内に押し込みつつ当該型空間１ａ内に進入する（図４）。なお、突押し部材６１はその断面形状が型空間１ａの断面形状に倣いかつそれよりもやや小径である。 The operation of the punching assisting tool 2 having such a structure will be described below with reference to FIGS. In the female mold 1 shown in FIG. 3, the above-described punching assisting tool 2 is installed at a symmetrical position. A cut 52 is formed in the paper material 5 along a contour line surrounding the punched portion 51. Such a paper material is moved along the surface of the female die 1, and the punched portion 51 is formed in the die space 1a. It is located directly above. In this state, as the male mold 6 descends, the thrust member 61 enters the mold space 1a while pushing the paper material 5 into the mold space 1a (FIG. 4). The pushing member 61 has a cross-sectional shape that follows the cross-sectional shape of the mold space 1a and has a slightly smaller diameter.

突押し部材６１の進入に伴って、上記輪郭線のうちの切残し部５３は突押し部材６１によって型空間１ａ内に押し込まれるが、最上位の変形片２３が切残し部５３の下面に当接して押込み方向である下方へ抵抗を有して弾性変形させられるため、上記切残し部５３は変形片２３と突押し部材６１によって挟持された状態となる。 As the thrust member 61 enters, the uncut portion 53 of the contour line is pushed into the mold space 1 a by the thrust member 61, but the uppermost deformed piece 23 contacts the lower surface of the uncut portion 53. Since the contact portion is elastically deformed with resistance downward in the pushing direction, the uncut portion 53 is sandwiched between the deformable piece 23 and the pushing member 61.

この状態でさらにオス型６が下降しその突押し部材６１が型空間１ａ内にさらに押し込まれると（図５）、切残し部５３は変形片２３の変形抵抗力を受けていることによっていずれかが早く分離されることなくほぼ同時に全ての切残し部５３が分離されて打抜き部分５１が型空間１ａ内へ切り離される。 In this state, when the male die 6 is further lowered and the pushing member 61 is further pushed into the die space 1a (FIG. 5), the uncut portion 53 is subjected to any deformation resistance force of the deformation piece 23, and thus either All the uncut portions 53 are separated almost simultaneously without being separated quickly, and the punched portion 51 is cut into the mold space 1a.

突押し部材６１が型空間１ａ内にさらに押し込まれると（図６）、打抜き部分５１は変形片２３を押し下げ変形させつつ型空間１ａ内を最下位置まで押し込まれる。その後、オス型６は上昇し、これに伴って突押し部材６１は型空間１ａ外へ向けて移動するが（図６の二点鎖線）、打抜き部分５１は変形片２３の変形抵抗力によって型空間１ａ外へ引き出されることなく押し込まれた位置に保持される。本実施形態では特に、変形片２３の先端部がメス型１の裏面方向（図６の下方）へ湾曲させられていることにより、打抜き部分５１は確実に押し込まれた位置に保持される。 When the pushing member 61 is further pushed into the mold space 1a (FIG. 6), the punched portion 51 is pushed into the mold space 1a to the lowest position while the deformation piece 23 is pushed down and deformed. Thereafter, the male die 6 rises, and along with this, the pushing member 61 moves out of the die space 1a (two-dot chain line in FIG. 6), but the punched portion 51 is shaped by the deformation resistance force of the deformation piece 23. It is held at the pushed-in position without being pulled out of the space 1a. Particularly in the present embodiment, the punched portion 51 is securely held at the position where the deformed piece 23 is pushed in by bending the tip of the deformable piece 23 toward the back surface of the female die 1 (downward in FIG. 6).

以上の作動が繰り返され、突押し部材６１によって紙材５の打抜き部分５１がこれから切り離されて順次型空間１ａ内へ押し込まれると、先に型空間１ａ内に留められていた打抜き部分５１は型空間１ａから押し出されて下方へ離脱させられる（図７）。以上のようにして、確実な打抜きが実現される。 When the above operation is repeated and the punching portion 51 of the paper material 5 is separated from the punching member 61 by the pushing member 61 and sequentially pushed into the die space 1a, the punching portion 51 previously held in the die space 1a becomes the die. It is pushed out of the space 1a and separated downward (FIG. 7). As described above, reliable punching is realized.

（第２実施形態）
図８には打抜き補助具の他の例を示す。基本形状は上記第１実施形態で説明したものと同一であり、変形部４を構成する変形片２４の形状が異なっている。すなわち、本実施形態では、型空間１ａ内でメス型１の表面側に位置させられる打抜き補助具２の他辺２２の上半部において変形片２４の先端部がメス型１の表面方向（図８の上方）へ湾曲させられている。他辺２２の下半部は第１実施形態と同様である。 (Second Embodiment)
FIG. 8 shows another example of the punching aid. The basic shape is the same as that described in the first embodiment, and the shape of the deformable piece 24 constituting the deformable portion 4 is different. That is, in the present embodiment, the tip of the deformable piece 24 is in the surface direction of the female die 1 in the upper half of the other side 22 of the punching aid 2 positioned on the surface side of the female die 1 in the die space 1a (see FIG. 8 above). The lower half of the other side 22 is the same as in the first embodiment.

このように、打抜き補助具２の他辺２２の上半部において、変形片２４の先端部が上方へ湾曲させてあることにより、突押し部材６１の進入に伴って輪郭線の切残し部５３（図４参照）が型空間１ａ内に押し込まれて変形片２４と突押し部材５１によって挟持される際に十分な挟持力が確保され、切残し部５３の分離がさらに確実に行われる。 Thus, in the upper half of the other side 22 of the punching assisting tool 2, the distal end portion of the deformable piece 24 is curved upward, so that the outline remains uncut portion 53 as the thrust member 61 enters. When (see FIG. 4) is pushed into the mold space 1a and is sandwiched between the deformable piece 24 and the thrust member 51, a sufficient clamping force is ensured, and the uncut portion 53 is more reliably separated.

（第３実施形態）
図９には打抜き補助具のさらに他の例を示す。本実施形態では打抜き補助具７の他辺７１に形成された変形部４を、当該他辺７１の長手方向へ多数形成された変形片７２て構成してある。これら変形片７２は型空間１ａ内方へ鋭角的に三角断面をなして延びている。他の構造は第１実施形態と同様である。 (Third embodiment)
FIG. 9 shows still another example of the punching aid. In the present embodiment, the deformed portion 4 formed on the other side 71 of the punching assisting tool 7 is configured as a plurality of deformed pieces 72 formed in the longitudinal direction of the other side 71. These deformation pieces 72 extend in a triangular cross section at an acute angle inward of the mold space 1a. Other structures are the same as those in the first embodiment.

このような変形片７２は型空間１ａ内への押し込み方向および型空間１ａ外への引き出し方向のいずれへも抵抗を有して弾性変形するから、変形片７２と突押し部材６１による切残し部５３の挟持、および型空間１ａ内へ押し込まれた打抜き部分５１の保持のいずれもが良好に行われ、確実な打抜きが実現される。 Since such a deformable piece 72 is elastically deformed with resistance in both the pushing direction into the mold space 1a and the pulling direction out of the mold space 1a, the uncut portion by the deformable piece 72 and the thrust member 61 Both the pinching of 53 and the holding of the punched portion 51 pushed into the mold space 1a are performed satisfactorily, and reliable punching is realized.

（第４実施形態）
図１０には打抜き補助具のさらに他の例を示す。本実施形態では打抜き補助具８の他辺８１に形成された変形部４をブラシ状のものとしてある。すなわち、本実施形態の変形部４は、型空間１ａ内方へ延びる弾性変形可能な繊維状の細片８２を、上記他辺８１の型空間１ａ外方側の半部に、多数ブラシ状に植設して構成されている。他の構造は第１実施形態と同様である。 (Fourth embodiment)
FIG. 10 shows still another example of the punching aid. In the present embodiment, the deformed portion 4 formed on the other side 81 of the punching assisting tool 8 is a brush. In other words, the deformable portion 4 of the present embodiment has a large number of elastically deformable fibrous strips 82 extending inward of the mold space 1a in the half of the other side 81 on the outer side of the mold space 1a. It is constructed by planting. Other structures are the same as those in the first embodiment.

このような変形部４は、型空間１ａ内への押し込み方向および型空間１ａ外への引き出し方向のいずれへも抵抗を有して弾性変形するから、本実施形態によっても、細片８２と突押し部材６１による切残し部５３の挟持、および型空間１ａ内へ押し込まれた打抜き部分５１の保持のいずれも良好に行われ、確実な打抜きが実現される。 Such a deforming portion 4 is elastically deformed with resistance in both the pushing direction into the mold space 1a and the pulling direction out of the mold space 1a. Both the holding of the uncut portion 53 by the pressing member 61 and the holding of the punched portion 51 pushed into the mold space 1a are performed satisfactorily, and reliable punching is realized.

（第５実施形態）
図１１には打抜き補助具のさらに他の例を示す。本実施形態では打抜き補助具９の他辺９１に形成された変形部４を、所定厚で型空間１ａ内方へ突出するスポンジ体９２で構成する。他の構造は第１実施形態と同様である。 (Fifth embodiment)
FIG. 11 shows still another example of the punching assisting tool. In the present embodiment, the deformable portion 4 formed on the other side 91 of the punching assisting tool 9 is constituted by a sponge body 92 that protrudes inward into the mold space 1a with a predetermined thickness. Other structures are the same as those in the first embodiment.

このような変形部４は、型空間１ａ内への押し込み方向および型空間１ａ外への引き出し方向のいずれへも抵抗を有して弾性変形するから、本実施形態によっても、スポンジ体９２と突押し部材６１による切残し部５３の挟持、および型空間１ａ内へ押し込まれた打抜き部分５１の保持のいずれも良好に行われ、確実な打抜きが実現される。 Such a deforming portion 4 is elastically deformed with resistance in both the direction of pushing into the mold space 1a and the direction of pulling out of the mold space 1a. Both the holding of the uncut portion 53 by the pressing member 61 and the holding of the punched portion 51 pushed into the mold space 1a are performed satisfactorily, and reliable punching is realized.

（その他の実施形態）
上記各実施形態において、打抜き補助具は必ずしも紙材の切残し部に対応させて設ける必要は無い。また、第１実施形態〜第３実施形態における打抜き補助具の材質としては弾性変形可能な材料であればよく、樹脂材以外に金属材等を使用してもよい。さらにこの場合、変形片の数は上記各実施形態のものに限られず、上述の作用を奏する範囲で設計的に決定されるものである。 (Other embodiments)
In each of the above embodiments, the punching assisting tool need not necessarily be provided corresponding to the uncut portion of the paper material. Moreover, the material of the punching assisting tool in the first to third embodiments may be any material that can be elastically deformed, and a metal material or the like may be used in addition to the resin material. Furthermore, in this case, the number of deformation pieces is not limited to that of each of the above-described embodiments, and is determined by design within a range where the above-described effects are exhibited.

１…メス型、１…型空間、２…打抜き補助具、２３…変形片、２４…変形片、４…変形部、７…打抜き補助具、７２…変形片、８…打抜き補助具、８２…細片、９…打抜き補助具、９２…スポンジ体。 DESCRIPTION OF SYMBOLS 1 ... Female type | mold, 1 ... Mold space, 2 ... Punching aid, 23 ... Deformation piece, 24 ... Deformation piece, 4 ... Deformation part, 7 ... Punching aid, 72 ... Deformation piece, 8 ... Punching aid, 82 ... Strip, 9 ... punching aid, 92 ... sponge body.

Claims

打抜機のメス型の型空間内に設置されてその内周面に沿ってその深さ方向へ延び、型空間内への押し込み方向および型空間外への引き出し方向のいずれへも抵抗を有して変形する変形部を少なくともその型空間内方側に備える打抜機の打抜き補助具。 It is installed in the female mold space of the punching machine and extends in the depth direction along its inner peripheral surface. It has resistance in both the direction of pushing into the mold space and the direction of drawing out of the mold space. A punching auxiliary tool for a punching machine provided with a deforming portion that deforms at least on the inner side of the mold space.

前記変形部を、前記型空間の内方へ延びる弾性変形可能な変形片を前記型空間の深さ方向へ複数設けて構成した請求項１に記載の打抜機の打抜き補助具。 The punching assisting tool for a punching machine according to claim 1, wherein the deforming portion is formed by providing a plurality of elastically deformable deforming pieces extending inward of the mold space in the depth direction of the mold space.

前記変形部を、前記型空間の内方へ延びる弾性変形可能な繊維状の細片を前記型空間の深さ方向へ多数植設して構成した請求項１に記載の打抜機の打抜き補助具。 The punching assisting tool for a punching machine according to claim 1, wherein the deforming portion is formed by planting a large number of elastically deformable fibrous strips extending inward of the mold space in the depth direction of the mold space. .

前記変形部を、所定厚で前記型空間の内方へ延びるスポンジ体で構成した請求項１に記載の打抜機の打抜き補助具。 The punching assisting tool for a punching machine according to claim 1, wherein the deformable portion is formed of a sponge body having a predetermined thickness and extending inward of the mold space.