JP4518698B2 - Press molding equipment for double-layer products - Google Patents

Press molding equipment for double-layer products Download PDF

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Publication number
JP4518698B2
JP4518698B2 JP2001134147A JP2001134147A JP4518698B2 JP 4518698 B2 JP4518698 B2 JP 4518698B2 JP 2001134147 A JP2001134147 A JP 2001134147A JP 2001134147 A JP2001134147 A JP 2001134147A JP 4518698 B2 JP4518698 B2 JP 4518698B2
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Japan
Prior art keywords
plate
pressing member
outer edge
overlaps
die
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JP2001134147A
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Japanese (ja)
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JP2002331315A (en
Inventor
功明 岩浪
達也 稲葉
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Description

【０００１】
【発明の属する技術分野】
本発明は、金属製の製品本体に金属製の板状部品を重ね合わせた２枚重ね製品を成形するためのプレス成形装置に関する。
【０００２】
【従来の技術】
従来、この種の２枚重ね製品は、製品本体と板状部品とを別々にプレス成形した後、製品本体に板状部品を溶接等で結合して製造している。然し、この方法では、製品本体用と板状部品用の各別のプレス成形装置が必要になり、製品の製造コストが高くなる不具合がある。
【０００３】
そのため、製品本体となる第１の板材に板状部品となる第２の板材を接合して成るブランク材を用い、単一のプレス成形装置で製品をプレス成形することが望まれる。この場合、ブランク材の第１の板材側に対向するダイと第２の板材側に対向するパンチとを備えるプレス成形装置を使用し、ダイとパンチとの一方を他方に向けて押動させて、第１の板材の外縁部を拘束した状態で第１の板材を製品本体の形状に張出し成形しつつ、第２の板材を非拘束で製品本体に重なる板状部品の形状に成形することが考えられる。
【０００４】
【発明が解決しようとする課題】
上記の如く第２の板材を非拘束にして第１の板材を張出し成形すると、第１の板材が第２の板材の成形反力（成形に対する抵抗力）を受けて、第２の板材にオーバーラップする第１の板材の部分の変形が規制される。そのため、張出し成形時に第１の板材が第２の板材の外縁に合致する部分で屈曲し、この屈曲による折れ線が製品本体に残ってしまい、外観を損なうことがある。特に、製品のリブ部の端部のように第２の板材が材料の縮みを生じつつ成形される部分では第２の板材の成形反力が大きくなり、この部分の外縁に沿う折れ線が製品本体に残り易くなる。
【０００５】
本発明は、以上の点に鑑み、２枚重ね製品を折れ線を生ずることなく良好に成形し得るようにしたプレス成形装置を提供することを課題としている。
【０００６】
【課題を解決するための手段】
上記課題を解決すべく、本発明は、金属製の製品本体に金属製の板状部品を重ね合わせた２枚重ね製品を、製品本体となる第１の板材に板状部品となる第２の板材を接合して成るブランク材を用いて成形するプレス成形装置であって、ブランク材の第１の板材側に対向するダイと第２の板材側に対向するパンチとを備え、ダイとパンチとの一方を他方に向けて押動させて、第１の板材の外縁部を拘束した状態で第１の板材を製品本体の形状に張出し成形しつつ、第２の板材を非拘束で製品本体に重なる板状部品の形状に成形するものにおいて、ダイに、第２の板材の外縁寄りの部分に重なる第１の板材の部分に当接する押圧部材をパンチ側に付勢して摺動自在に挿設している。
【０００７】
本発明によれば、第１の板材に押圧部材によって加えられる押圧力により第２の板材の成形反力が相殺される。そのため、張出し成形時に第１の板材が第２の板材の外縁に合致する部分で屈曲せず、折れ線の発生が防止される。
【０００８】
ここで、押圧部材は折れ線が発生し易い箇所に合わせて限定的に設けても良い。即ち、第２の板材の外縁寄りの部分のうち第２の板材が材料の縮みを生じつつ成形される部分に重なる第１の板材の部分にだけ当接するように押圧部材を設けても良い。
【０００９】
また、第２の板材の外縁寄りの部分に重なる第１の板材の部分をその全域に亘って押圧する場合には、押圧部材として、第２の板材の外縁寄りの部分のうち第２の板材が材料の縮みを生じつつ成形される部分に重なる第１の板材の部分に当接する第１の押圧部材と、第２の板材の外縁寄りの部分のうち第２の板材が単純曲げで成形される部分に重なる第１の板材の部分に当接する第２の押圧部材とを設け、第２の押圧部材の付勢力を第１の押圧部材の付勢力よりも小さく設定することが望ましい。
【００１０】
【発明の実施の形態】
図１（Ａ）は、金属製の製品本体２と、製品本体２のリブ部２ａの内面に重ね合わせた複強用の板状部品３とから成る２枚重ね製品１を示している。この製品１は、図１（Ｂ）に示す如く、製品本体２となる比較的薄い第１の板材２′に板状部品３となる比較的厚い第２の板材３′をその幅方向中央部において接着剤やスポット溶接等で接合して成るブランク材１′を用いてプレス成形される。
【００１１】
２枚重ね製品１のプレス成形装置は、図２に示す如く、下側のパンチ１０と、昇降自在な上側のダイ１１と、パンチ１０の周囲に配置した、ピン１２ａを介して上方に付勢されるブランクホルダ１２とを備えている。２枚重ね製品１のプレス成形に際しては、先ず、図２（Ａ）に示す如く、プレス成形装置に、第２の板材３′を下にした状態で第１の板材２′の成形領域の外縁部がブランクホルダ１２に着座するようにブランク材１′をセットし、次に、ダイ１１をパンチ１０に向けて下降させる。これによれば、第１の板材２′の外縁部がダイ１１のダイフェース部１１ａとブランクホルダ１２との間に挟まれて拘束され、この状態でブランク材１′がダイ１１によりブランクホルダ１２と共に押し下げられる。そして、第２の板材３′がパンチ１０に当接したところで、図２（Ｂ）に示す如く第１の板材２′の張出し成形が開始される。
【００１２】
ここで、第２の板材３′の外縁部はブランクホルダ１２とダイフェース部１１ａとの間に挟まれておらず、第２の板材３′は非拘束で材料の伸びを生ずることなく成形される。そして、第１の板材２′の第２の板材３′にオーバーラップする部分に第２の板材３′の成形反力Ｆ′が作用し、このままでは、第１の板材２′が第２の板材３′の外縁に合致する箇所で屈曲する。そこで、本実施形態では、ダイ１１に、ダイ２の板材３′の外縁寄りの部分、即ち、パンチ１０の頂面の外側に張り出す第２の板材３′の部分に重なる第１の板材２′の部分に当接する押圧部材１３を上下方向に摺動自在に挿設し、押圧部材１３をばね等の付勢手段１３ａでパンチ１０側、即ち、下方に付勢している。これによれば、押圧部材１３を介して加えられる押圧力Ｆにより第２の板材３′の成形反力Ｆ′が相殺され、第２の板材３′の外縁に合致する箇所で第１の板材２′が屈曲しなくなり、この屈曲に起因した折れ線の発生が防止される。
【００１３】
押圧部材１３は、ダイ１１の下降に伴い、図２（Ｃ）に示す如く、付勢手段１３ａを圧縮しつつダイ１１に対し上動し、最終的に、図２（Ｄ）に示す如く、押圧部材１３がダイ１１に完全に没入した状態でダイ１１とパンチ１０との間にブランク材１′が挟まれ、第１と第２の両板材２′，３′が夫々パンチ１０とダイ１１に合致する所要の形状、即ち、製品本体２の形状とこれに重なる板状部品３の形状に成形される。
【００１４】
ここで、押圧部材１３は、図３に示す如く、第２の板材３′の外縁寄りの部分に重なる第１の板材２′の部分の全域に亘って当接するように形成されている。尚、製品本体２のリブ部２ａの端部となる部分に位置する第２の板材３′の部分３′ａは、成形に際し曲げに加えて材料の縮みを生ずる。そのため、第２の板材３′のこの部分３′ａの成形反力は大きくなるが、リブ部２ａの側面となる部分に位置する第２の板材３′の部分３′ｂは単純曲げで成形され、この部分３′ｂの成形反力は左程大きくならない。従って、図４に示す如く、材料の縮みを生じつつ成形される第２の板材３′の特定部分３′ａに重なる第１の板材２′の部分にのみ当接するように押圧部材１３を設けても良い。
【００１５】
また、図３に示すものでは、ブランク材１′の平面精度誤差により、押圧部材１３が単純曲げで成形される第２の板材３′の一般部分３′ｂに重なる第１の板材２′の部分に第２の板材３′の特定部分３′ａに重なる第１の板材２′の部分に先行して当接した場合、押圧部材１３の付勢力が第２の板材３′の特定部分３′ａの成形反力に合わせて大きく設定されているため、第２の板材３′の一般部分３′ｂに重なる第１の板材２′の部分に作用する押圧力が第２の板材３′の一般部分３′ｂの成形反力を上回って、第１の板材２′が逆曲げされ、これによる折れ線が発生する可能性がある。ここで、押圧部材として、図５に示す如く、第２の板材３′の特定部分３′ａに重なる第１の板材２′の部分に当接する第１の押圧部材１３1と、第２の板材３′の一般部分３′ｂに重なる第１の板材２′の部分に当接する第２の押圧部材１３2とを設け、第１の押圧部材１３1の付勢力を第２の板材３′の特定部分３′ａの成形反力に合わせて比較的大きく設定し、第２の押圧部材１３2の付勢力を第２の板材３′の一般部分３′ｂの成形反力に合わせて比較的小さく設定すれば、上記の不具合を防止できる。
【００１６】
また、上記実施形態では、押圧部材１３，１３1，１３2を板状体で構成したが、第２の板材３′の外縁の長手方向に間隔を存して並設した複数のピンで押圧部材１３，１３1，１３2を構成しても良い。更に、上記実施形態では、第２の板材３′の外縁寄りの部分である上記特定部分３′ａや一般部分３′ｂの外縁に極く近い第１の板材２′の部分に押圧部材１３が当接するようにしたが、押圧部材１３の当接位置をパンチ１０の頂面に近い位置に設定することも可能である。また、パンチ１０とダイ１１とを上下反転させ、パンチ１０の周囲に下方に付勢されるブランク押えを設けて、ダイ１１上に第２の板材３′を上にした状態でブランク材１′をセットし、パンチ１０の下降により第１の板材２′の外縁部をブランク押えとダイ１１のダイフェース部１１ａとの間に挟んで拘束し、この状態で第１の板材２′を張出し成形しつつ第２の板材３′を非拘束で成形する場合にも、ダイ１１に上記実施形態と同様の押圧部材１３，１３1，１３2をパンチ１０側たる上方に付勢して摺動自在に挿設しておくことにより、第１の板材２′の張出し成形に際しての第２の板材３′の外縁に合致する箇所における第１の板材２′の屈曲、即ち、折れ線の発生が防止される。
【００１７】
【発明の効果】
以上の説明から明らかなように、本発明によれば、第１の板材の張出し成形時に第１の板材が第２の板材の外縁に合致する箇所で屈曲せず、２枚重ね製品を折れ線を生ずることなく良好にプレス成形できる。
【図面の簡単な説明】
【図１】 （Ａ）２枚重ね製品の一例の斜視図、（Ｂ）この製品の成形に用いるブランク材の斜視図
【図２】 （Ａ）本発明に係るプレス成形装置のブランク材セット状態を示す断面図、（Ｂ）成形初期段階の断面図、（Ｃ）成形中間段階の断面図、（Ｄ）成形最終段階の断面図
【図３】 プレス成形装置のダイに挿設した押圧部材の第１実施形態を示す図２（Ａ）のIII-III線で截断した截断平面図
【図４】 押圧部材の第２実施形態を示す截断平面図
【図５】 押圧部材の第３実施形態を示す截断平面図
【符号の説明】
１ ２枚重ね製品 ２ 製品本体
３ 板状部品 １′ ブランク材
２′ 第１の板材 ３′ 第２の板材
３′ａ 材料の縮みを生じつつ成形される部分
３′ｂ 単純曲げで成形される部分
１０ パンチ １１ ダイ
１２ ブランクホルダ １３ 押圧部材
１３1 第１の押圧部材 １３2 第２の押圧部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a press molding apparatus for molding a two-layer product in which metal plate-like parts are superimposed on a metal product body.
[0002]
[Prior art]
Conventionally, this type of two-ply product is manufactured by press-molding a product body and a plate-like component separately, and then joining the plate-like component to the product body by welding or the like. However, this method requires separate press molding apparatuses for the product main body and the plate-like component, and there is a problem that the manufacturing cost of the product increases.
[0003]
For this reason, it is desired to use a blank material formed by joining a second plate material serving as a plate-like component to a first plate material serving as a product body, and press-molding the product using a single press molding apparatus. In this case, by using a press molding apparatus including a die facing the first plate material side of the blank material and a punch facing the second plate material side, one of the die and the punch is pushed toward the other. The second plate can be molded into the shape of a plate-like component that overlaps the product body without being restrained while the first plate is stretched and formed into the shape of the product body while the outer edge of the first plate is restrained. Conceivable.
[0004]
[Problems to be solved by the invention]
As described above, when the first plate material is stretched and formed without unconstraining the second plate material, the first plate material receives the forming reaction force (resistance force to the forming) of the second plate material, and exceeds the second plate material. Deformation of the portion of the first plate to be wrapped is restricted. For this reason, the first plate material is bent at the portion matching the outer edge of the second plate material at the time of overhang forming, and a broken line due to this bending remains in the product body, which may impair the appearance. In particular, in the portion where the second plate material is formed while shrinking the material, such as the end portion of the rib portion of the product, the molding reaction force of the second plate material becomes large, and the broken line along the outer edge of this portion is the product body It becomes easy to remain in.
[0005]
In view of the above points, an object of the present invention is to provide a press forming apparatus that can form a two-ply product without forming a broken line.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a two-layer product in which a metal plate-like component is superimposed on a metal product main body, and a second plate-like component that is a first plate material that is the product main body. A press molding apparatus for molding using a blank material formed by joining plate materials, comprising: a die facing the first plate material side of the blank material; and a punch facing the second plate material side; The first plate is stretched into the shape of the product main body while the outer edge of the first plate is constrained and the second plate is unconstrained to the product main body. When molding into the shape of overlapping plate-like parts, the pressing member that contacts the portion of the first plate that overlaps the portion near the outer edge of the second plate is urged into the die and slidably inserted into the punch. Has been established.
[0007]
According to the present invention, the forming reaction force of the second plate material is offset by the pressing force applied to the first plate material by the pressing member. Therefore, the first plate member does not bend at the portion matching the outer edge of the second plate member at the time of overhang forming, and the generation of a broken line is prevented.
[0008]
Here, you may provide a press member limitedly according to the location where a broken line is easy to generate | occur | produce. That is, the pressing member may be provided so as to contact only the portion of the first plate that overlaps the portion of the second plate close to the outer edge of the second plate that is formed while shrinking the material.
[0009]
Moreover, when pressing the part of the 1st board | plate material which overlaps with the part near the outer edge of a 2nd board | plate material over the whole region, it is a 2nd board | plate material among the parts near the outer edge of a 2nd board | plate material as a press member. The first pressing member that contacts the portion of the first plate that overlaps the portion to be molded while causing the material to shrink, and the second plate of the portion near the outer edge of the second plate are formed by simple bending. It is desirable to provide a second pressing member that comes into contact with the portion of the first plate member that overlaps with the first pressing member, and set the biasing force of the second pressing member to be smaller than the biasing force of the first pressing member.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1A shows a two-ply product 1 composed of a metal product main body 2 and a double-strength plate-like component 3 superimposed on the inner surface of the rib portion 2 a of the product main body 2. As shown in FIG. 1B, the product 1 includes a relatively thin first plate 2 'serving as a product main body 2 and a relatively thick second plate 3' serving as a plate-like component 3 in a central portion in the width direction. In this method, the blank material 1 'formed by bonding with an adhesive or spot welding is used for press molding.
[0011]
As shown in FIG. 2, the press forming apparatus for the two-ply product 1 is urged upward via a lower punch 10, an upper die 11 that can be raised and lowered, and a pin 12 a disposed around the punch 10. The blank holder 12 is provided. When press-molding the two-layer product 1, first, as shown in FIG. 2 (A), the outer edge of the molding region of the first plate 2 ′ with the second plate 3 ′ in the press molding apparatus. The blank material 1 ′ is set so that the portion is seated on the blank holder 12, and then the die 11 is lowered toward the punch 10. According to this, the outer edge portion of the first plate member 2 ′ is sandwiched and restrained between the die face portion 11 a of the die 11 and the blank holder 12. In this state, the blank member 1 ′ is held by the die 11 with the blank holder 12. Is pushed down with. When the second plate 3 'comes into contact with the punch 10, overhanging of the first plate 2' is started as shown in FIG.
[0012]
Here, the outer edge portion of the second plate material 3 'is not sandwiched between the blank holder 12 and the die face portion 11a, and the second plate material 3' is formed without causing any material elongation without restraint. The Then, the forming reaction force F ′ of the second plate 3 ′ acts on the portion of the first plate 2 ′ that overlaps the second plate 3 ′, and the first plate 2 ′ becomes the second plate as it is. It bends at a location that matches the outer edge of the plate 3 '. Therefore, in the present embodiment, the first plate material 2 that overlaps the die 11 with the portion near the outer edge of the plate material 3 ′ of the die 2, that is, the second plate material 3 ′ protruding outside the top surface of the punch 10. A pressing member 13 abutting on the portion 'is inserted so as to be slidable in the vertical direction, and the pressing member 13 is biased to the punch 10 side, that is, downward by biasing means 13a such as a spring. According to this, the forming reaction force F ′ of the second plate member 3 ′ is canceled by the pressing force F applied via the pressing member 13, and the first plate member is located at a position matching the outer edge of the second plate member 3 ′. 2 'is not bent, and the generation of a broken line due to this bending is prevented.
[0013]
As shown in FIG. 2 (C), the pressing member 13 moves upward with respect to the die 11 while compressing the urging means 13a as the die 11 descends, and finally, as shown in FIG. 2 (D). With the pressing member 13 completely immersed in the die 11, the blank material 1 ′ is sandwiched between the die 11 and the punch 10, and the first and second plate materials 2 ′ and 3 ′ are respectively inserted into the punch 10 and the die 11. , That is, the shape of the product main body 2 and the shape of the plate-like component 3 overlapping therewith.
[0014]
Here, as shown in FIG. 3, the pressing member 13 is formed so as to be in contact with the entire area of the portion of the first plate 2 ′ that overlaps the portion near the outer edge of the second plate 3 ′. The portion 3'a of the second plate 3 'located at the end portion of the rib portion 2a of the product body 2 causes material shrinkage in addition to bending during molding. Therefore, although the reaction force for forming the portion 3'a of the second plate 3 'is increased, the portion 3'b of the second plate 3' located on the side portion of the rib portion 2a is formed by simple bending. Therefore, the molding reaction force of the portion 3'b does not increase as much as the left. Therefore, as shown in FIG. 4, the pressing member 13 is provided so as to contact only the portion of the first plate member 2 'that overlaps the specific portion 3'a of the second plate member 3' that is formed while shrinking the material. May be.
[0015]
Further, in the case shown in FIG. 3, due to the plane accuracy error of the blank material 1 ′, the pressing member 13 of the first plate material 2 ′ overlapping the general portion 3′b of the second plate material 3 ′ formed by simple bending is used. When the portion comes into contact with the portion of the first plate 2 'that overlaps the specific portion 3'a of the second plate 3' in advance, the urging force of the pressing member 13 causes the specific portion 3 of the second plate 3 '. Since it is set to be large in accordance with the molding reaction force of 'a, the pressing force acting on the portion of the first plate 2' that overlaps the general portion 3'b of the second plate 3 'is the second plate 3'. There is a possibility that the first plate member 2 ′ is reversely bent beyond the forming reaction force of the general portion 3 ′ b, thereby causing a broken line. Here, as the pressing member, as shown in FIG. 5, the first pressing member 13 1 in contact with the 'first plate 2 which overlaps the specific portion 3'a of the' portion of the second plate member 3, the second plate 3 'general portion 3'b first plate 2 overlapping the' part provided and two second pressing member 13 that abuts the, the first urging force of the pressing member 13 1 the second plate 3 ' set relatively large in accordance with the molding the reaction force of the specific portion 3'a, the second urging force of the pressing member 13 2 in accordance with the molding the reaction force of the general portion 3'b of the second plate 3 'comparison If the value is set to be small enough, the above-mentioned problems can be prevented.
[0016]
In the above-described embodiment, the pressing members 13, 13 1 and 13 2 are formed of plate-like bodies. However, the pressing members 13, 13 1 and 13 2 are pressed by a plurality of pins arranged in parallel in the longitudinal direction of the outer edge of the second plate 3 '. The members 13, 13 1 and 13 2 may be configured. Furthermore, in the above-described embodiment, the pressing member 13 is placed on the portion of the first plate 2 'that is very close to the outer edge of the specific portion 3'a or the general portion 3'b, which is a portion near the outer edge of the second plate 3'. However, it is also possible to set the contact position of the pressing member 13 to a position close to the top surface of the punch 10. Further, the punch 10 and the die 11 are turned upside down, a blank presser that is biased downward is provided around the punch 10, and the blank material 1 ′ is placed with the second plate material 3 ′ on the die 11. Is set, and the outer edge portion of the first plate member 2 'is sandwiched between the blank presser and the die face portion 11a of the die 11 by the lowering of the punch 10, and the first plate member 2' is stretched and formed in this state. However, even when the second plate member 3 ′ is formed unconstrained, the pressing members 13, 13 1 , and 13 2 that are the same as those in the above-described embodiment are urged on the die 11 to be slid upward. By being inserted in, the bending of the first plate 2 'at the portion matching the outer edge of the second plate 3' when the first plate 2 'is stretched, that is, the generation of the broken line is prevented. The
[0017]
【The invention's effect】
As is clear from the above description, according to the present invention, the first plate material does not bend at the position where the first plate material matches the outer edge of the second plate material when the first plate material is overmolded. It can be press-formed well without being generated.
[Brief description of the drawings]
1A is a perspective view of an example of a two-ply product, FIG. 1B is a perspective view of a blank material used for molding the product, and FIG. 2A is a blank material set state of a press molding apparatus according to the present invention. (B) Cross-sectional view at the initial stage of molding, (C) Cross-sectional view at the intermediate stage of molding, (D) Cross-sectional view of the final stage of molding [FIG. 3] of the pressing member inserted in the die of the press-forming apparatus FIG. 4 is a plan view showing the first embodiment of the pressing member taken along the line III-III in FIG. 2A. FIG. 4 is a plan view of the pressing member showing the second embodiment. FIG. Cutaway plan view [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Two-ply product 2 Product main body 3 Plate-shaped part 1 'Blank material 2' 1st plate material 3 '2nd plate material 3'a The part 3'b shape | molded while producing the shrinkage of material It shape | molds by simple bending Part 10 Punch 11 Die 12 Blank holder 13 Pressing member 13 1 First pressing member 13 2 Second pressing member

Claims (3)

金属製の製品本体に金属製の板状部品を重ね合わせた２枚重ね製品を、製品本体となる第１の板材に板状部品となる第２の板材を接合して成るブランク材を用いて成形するプレス成形装置であって、
ブランク材の第１の板材側に対向するダイと第２の板材側に対向するパンチとを備え、ダイとパンチとの一方を他方に向けて押動させて、第１の板材の外縁部を拘束した状態で第１の板材を製品本体の形状に張出し成形しつつ、第２の板材を非拘束で製品本体に重なる板状部品の形状に成形するものにおいて、
ダイに、第２の板材の外縁寄りの部分に重なる第１の板材の部分に当接する押圧部材をパンチ側に付勢して摺動自在に挿設する、
ことを特徴とする２枚重ね製品のプレス成形装置。Using a two-ply product in which a metal plate body is superimposed on a metal product body, and using a blank material formed by joining a second plate material serving as a plate part to a first plate material serving as a product body A press molding apparatus for molding,
A blank material is provided with a die facing the first plate material side and a punch facing the second plate material side, one of the die and the punch is pushed toward the other, and the outer edge portion of the first plate material is moved In a state where the first plate member is stretched and formed into the shape of the product body in a constrained state, and the second plate member is formed into the shape of a plate-like component that overlaps the product body in an unconstrained manner,
A pressing member that is in contact with the portion of the first plate that overlaps the portion near the outer edge of the second plate is urged toward the punch and is slidably inserted into the die.
A press-molding device for two-ply products characterized by the above. 前記押圧部材は、第２の板材の外縁寄りの部分のうち第２の板材が材料の縮みを生じつつ成形される部分に重なる第１の板材の部分に当接するように設けられていることを特徴とする請求項１に記載の２枚重ね製品のプレス成形装置。The pressing member is provided so as to come into contact with a portion of the first plate member that overlaps a portion of the second plate member near the outer edge that is formed while the second plate member is contracted. 2. The press-molding apparatus for two-ply products according to claim 1. 前記押圧部材として、第２の板材の外縁寄りの部分のうち第２の板材が材料の縮みを生じつつ成形される部分に重なる第１の板材の部分に当接する第１の押圧部材と、第２の板材の外縁寄りの部分のうち第２の板材が単純曲げで成形される部分に重なる第１の板材の部分に当接する第２の押圧部材とを設け、第２の押圧部材の付勢力を第１の押圧部材の付勢力よりも小さく設定することを特徴とする請求項１に記載の２枚重ね製品のプレス成形装置。As the pressing member, a first pressing member that comes into contact with a portion of the first plate member that overlaps a portion of the second plate member that is formed while the second plate member shrinks the material, near the outer edge, A second pressing member that abuts against a portion of the first plate that overlaps a portion where the second plate is formed by simple bending in a portion near the outer edge of the second plate, and an urging force of the second pressing member Is set to be smaller than the biasing force of the first pressing member.
JP2001134147A 2001-05-01 2001-05-01 Press molding equipment for double-layer products Expired - Fee Related JP4518698B2 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06510703A (en) * 1991-05-09 1994-12-01 サウンドウィッチ・インコーポレーテッド A method for manufacturing a sound-damping automobile cover and a product manufactured by the method
JP2000197969A (en) * 1998-12-25 2000-07-18 Sumitomo Metal Ind Ltd Blank for integrally forming and forming method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06510703A (en) * 1991-05-09 1994-12-01 サウンドウィッチ・インコーポレーテッド A method for manufacturing a sound-damping automobile cover and a product manufactured by the method
JP2000197969A (en) * 1998-12-25 2000-07-18 Sumitomo Metal Ind Ltd Blank for integrally forming and forming method thereof

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