JP2001334553A - Mold for lamination molding and method for lamination molding - Google Patents
Mold for lamination molding and method for lamination moldingInfo
- Publication number
- JP2001334553A JP2001334553A JP2000157624A JP2000157624A JP2001334553A JP 2001334553 A JP2001334553 A JP 2001334553A JP 2000157624 A JP2000157624 A JP 2000157624A JP 2000157624 A JP2000157624 A JP 2000157624A JP 2001334553 A JP2001334553 A JP 2001334553A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- skin material
- molding
- resin
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14959—Flashing the injected material to the outside of the mould cavity for any purpose
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、樹脂製加飾層を有
する表皮材を射出成形またはプレス成形によりコア材溶
融樹脂と融着一体化して表皮貼合わせ樹脂成形品を成形
する貼合わせ成形用金型装置および貼合わせ成形法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminate for molding a skin material having a decorative layer made of resin by fusion molding with a core material molten resin by injection molding or press molding. It relates to a mold apparatus and a lamination molding method.
【０００２】[0002]
【従来の技術】近年、自動車、家電，建材等に使用され
る樹脂成形品は、装飾性や触感等の付加価値を付けて成
形品品質や付加価値を高めたり、成形工程の省工程化に
よるコストダウンを図るために、樹脂製加飾層を有する
表皮材を熱可塑性樹脂からなるコア材の表面に融着一体
化する貼合わせ成形方法により生産されることが多くな
っている。従来の表皮材一体貼合わせ成形においては、
溶融樹脂が金型から食み出さず、成形後においても表皮
材に破れや皺がなく、溶融樹脂の高温・高圧の影響を受
けないように種々の工夫がなされていた。代表的な先行
技術としては特開平３−３４８３０号「表皮材貼合一体
合成樹脂積層体成形用金型」がある。この先行技術にお
いては、表皮材が破れたり、積層体の端部付近の表皮材
が白化・皺を生じないように、また、金型隙間より溶融
樹脂が食み出さないようにするための金型隙間と噛合い
深さについて記載されている。2. Description of the Related Art In recent years, resin molded products used for automobiles, home appliances, building materials, and the like are provided with added values such as decorativeness and tactile sensation to enhance the quality and added value of the molded products, or by reducing the molding process. In order to reduce costs, it is often produced by a lamination molding method in which a skin material having a decorative layer made of resin is fused and integrated to the surface of a core material made of a thermoplastic resin. In the conventional skin material integrated lamination molding,
Various devices have been devised so that the molten resin does not protrude from the mold, the skin material does not tear or wrinkle even after molding, and is not affected by the high temperature and high pressure of the molten resin. As a representative prior art, there is JP-A-3-34830, "a mold for molding a synthetic resin laminated body laminated with a skin material". In this prior art, a metal material for preventing the skin material from being torn, the skin material near the end of the laminated body from whitening and wrinkling, and preventing the molten resin from seeping out from the mold gap. It describes the mold clearance and the engagement depth.
【０００３】しかしながら、従来の成形法においては金
型からバリを出さないように食切り部の隙間が設定され
ているため、円盤成形体を中心から溶融樹脂を供給して
プレス成形する場合を除いては、食切り部周縁に溶融樹
脂が達するタイミングが場所によって異なる。このた
め、最初に食切り部に溶融樹脂が到達した部分では、そ
の後のプレス動作により溶融樹脂が圧縮されるので、最
後に溶融樹脂が充填される部分より樹脂圧力が高くな
る。とくに、型閉じ完了直前ではキャビティの厚みも減
少しているので、溶融樹脂の流動距離のアンバランスが
大きくなると溶融樹脂が最初に食切り部に到達した周縁
部では、表皮材に大きな圧力がかかることになる。この
ため、樹脂圧力の高いこの部分で局部的に表皮材の損傷
が発生していた。一方、実際の製品形状においては、中
心部にゲートを配設した円盤成形体のようなものは少な
く、図２のようなゲートより金型キャビティ周縁部に溶
融樹脂が達するまでの時間が異なるバランスの悪いゲー
ト配置となることが多い。更に、特異なゲート配置とし
ては図３に示すようなものもあり、この場合のキャビテ
ィ内の樹脂圧力としては図６に示すようにゲートに近い
周縁部で非常に高くなっている。[0003] However, in the conventional molding method, since the gap of the cut-off portion is set so as not to generate burrs from the mold, except for the case where the molten resin is supplied from the center of the disc molded body to perform press molding. Thus, the timing at which the molten resin reaches the periphery of the cut-off portion differs depending on the location. For this reason, in the portion where the molten resin first reaches the cut-off portion, the molten resin is compressed by the subsequent pressing operation, so that the resin pressure becomes higher than the portion where the molten resin is finally filled. In particular, immediately before the mold closing is completed, the thickness of the cavity is also reduced, so if the imbalance in the flow distance of the molten resin increases, a large pressure is applied to the skin material at the peripheral portion where the molten resin first reaches the cut-off portion. Will be. For this reason, the skin material was locally damaged in this portion where the resin pressure was high. On the other hand, in the actual product shape, there are few disc-like molded articles in which a gate is disposed at the center, and the time until molten resin reaches the periphery of the mold cavity from the gate as shown in FIG. The gate arrangement is often poor. Further, there is an unusual gate arrangement as shown in FIG. 3. In this case, the resin pressure in the cavity is extremely high at the peripheral portion near the gate as shown in FIG.
【０００４】また、金型の食切り部において表皮材がパ
ッキンの役目を果たす結果となっていたため、金型を圧
縮する場合に金型内に存在していたガスの排出が抑制さ
れて、樹脂流動のために余分な大きな圧力を必要とする
状態を招いていた。このため、表皮材にとっては更に損
傷条件が厳しくなっていた。[0004] In addition, since the skin material plays a role of packing in the cut-off portion of the mold, when the mold is compressed, the discharge of gas existing in the mold is suppressed, and the resin is removed. This has led to situations requiring extra large pressure for flow. For this reason, the damage condition was further severe for the skin material.
【０００５】[0005]
【発明が解決しようとする課題】以上のように、ゲート
バランスの悪い製品形状や表皮材のパッキン効果による
樹脂圧力の増大を防止するために、金型噛合い部より適
量のバリを出すことにより樹脂圧の低圧化を図り、表皮
材の損傷を防止することができる貼合わせ成形用金型装
置および貼合わせ成形法を提供することにある。As described above, in order to prevent an increase in resin pressure due to a product shape having poor gate balance or a packing effect of a skin material, an appropriate amount of burrs is produced from a mold engagement portion. An object of the present invention is to provide a lamination molding die apparatus and a lamination molding method capable of reducing resin pressure and preventing damage to a skin material.
【０００６】[0006]
【課題を解決するための手段】以上のような課題を解決
するために、本発明においては、第１の発明では、射出
成形またはプレス成形により表皮材とコア材となる溶融
樹脂を融着一体化する貼合わせ成形用金型装置であっ
て、該金型の食切り部の隙間が該表皮材を５０ｋｇｆ／
ｃｍ2 で圧縮した時の厚さより広く、１ｋｇｆ／ｃｍ2
で圧縮した時の厚さよりも狭くなるようにした。第２の
発明では、金型の食切り部の隙間が表皮材を５０ｋｇｆ
／ｃｍ2 で圧縮した時の厚さより広く、１ｋｇｆ／ｃｍ
2 で圧縮した時の厚さよりも狭い貼合わせ成形用金型装
置を用いて、表皮材を配置した型締完了時の金型キャビ
ティ容積以上の溶融樹脂を該金型キャビティ内に射出し
てプレス成形し、食切り部より余分な樹脂をバリとして
キャビティ外に漏らすこととした。さらに、第３の発明
においては、第２の発明において、型締完了後コア材樹
脂の冷却完了前に表皮材と表皮材が接する金型表面との
間に隙間を設けるようにした。In order to solve the above problems, according to the present invention, in the first invention, a skin material and a molten resin serving as a core material are integrally fused by injection molding or press molding. A die apparatus for laminating and molding, wherein the gap between the cut-off portions of the die is such that the skin material is 50 kgf /
wider than the thickness of when compressed in cm 2, 1kgf / cm 2
It was made smaller than the thickness when compressed. In the second invention, the gap between the cut-off portions of the mold is 50 kgf of the skin material.
Wider than the thickness when compressed at / cm 2, 1kgf / cm
Using a mold device for lamination molding that is narrower than the thickness when compressed in step 2 , the molten resin is injected into the mold cavity at a volume equal to or greater than the mold cavity volume at the time of completion of mold clamping with the skin material arranged. It was molded, and excess resin was leaked outside the cavity as burrs from the cut-off portion. Further, in the third invention, in the second invention, a gap is provided between the skin material and the surface of the mold in contact with the skin material after completion of the mold clamping and before completion of cooling of the core material resin.
【０００７】[0007]
【作用】本発明は、従来の射出成形において成形不良の
代表的な現象であるバリを積極的に利用することにより
金型キャビティ内の樹脂圧力を低く押えることが可能と
なり、表皮材の損傷を大幅に少なくすることが可能とな
った。発生したバリの処理は、表皮材のトリミングと同
時に行うことができるので工程数の増加はないので、生
産効率の低下は発生しない。According to the present invention, it is possible to suppress the resin pressure in the mold cavity to a low level by actively utilizing burrs, which is a typical phenomenon of molding failure in conventional injection molding, and reduce damage to the skin material. It became possible to greatly reduce. Since the processing of the generated burrs can be performed simultaneously with the trimming of the skin material, there is no increase in the number of steps, so that the production efficiency does not decrease.
【０００８】本発明における金型隙間の説明を図１に示
す。金型の食い切り部の隙間Ａおよび噛合深さＢは図１
に示す通りである。この隙間Ａを、表皮材を５０ｋｇｆ
／ｃｍ2 で圧縮した時の厚さより広く、１ｋｇｆ／ｃｍ
2 で圧縮した時の厚さよりも狭くなるように設定してい
る。この上限面圧を５０ｋｇｆ／ｃｍ2 より大きくする
と、バリの出るキャビティ内の樹脂圧力が高くなり表皮
材の損傷が大きくなる。一方、下限面圧を１ｋｇｆ／ｃ
ｍ2 より小さくするとこの隙間Ａが大きくなりすぎて樹
脂漏れが多くなり保圧効果が低下する。また、この下限
面圧の値を５ｋｇｆ／ｃｍ2 とすることにより、バリの
発生と賦形時の保圧効果のバランスをより一層効果的に
することができる。FIG. 1 illustrates the mold clearance in the present invention. The gap A and the engagement depth B of the cutout portion of the mold are shown in FIG.
It is as shown in FIG. This gap A is filled with 50 kgf of skin material.
Wider than the thickness when compressed at / cm 2, 1kgf / cm
It is set to be smaller than the thickness when compressed in 2 . If the upper limit surface pressure is larger than 50 kgf / cm 2 , the resin pressure in the cavity from which burrs are formed increases, and the damage to the skin material increases. On the other hand, the lower limit surface pressure is 1 kgf / c
If it is smaller than m 2, the gap A becomes too large, so that the resin leakage increases and the pressure holding effect is reduced. Further, by setting the value of the lower limit surface pressure to 5 kgf / cm 2 , the balance between the generation of burrs and the pressure-holding effect at the time of shaping can be further improved.
【０００９】一方、本発明では食い切り部の隙間Ａのみ
規定しているが、噛合深さＢについては下記の条件を満
足しておればよい。即ち、溶融樹脂を射出中または型締
中に噛合部に溶融樹脂が到達した時点で噛合部が表皮材
で閉じられた状態になっていればよく、噛合いが開始さ
れている必要はない。また、本発明は表皮材を折返すも
のや表皮材をプリフォームするものに対しては表皮材の
トリミング工程が追加となるので、本発明の効果は低減
される。On the other hand, in the present invention, only the gap A between the cutout portions is specified, but the meshing depth B only needs to satisfy the following condition. That is, it is sufficient that the meshing portion is closed by the skin material when the molten resin reaches the meshing portion during the injection of the molten resin or during the mold clamping, and the meshing does not need to be started. Further, in the present invention, the effect of the present invention is reduced because a trimming step of the skin material is added to the case where the skin material is folded or the case where the skin material is preformed.
【００１０】[0010]
【発明の実施の形態】以下に、本発明に係る貼合わせ成
形用金型装置および貼合わせ成形法の実施例と比較例を
説明するが、本発明はこのような実施例に限定されるも
のではなく、本発明の要旨を逸脱しない範囲でさまざま
な様態で実施できるものである。本発明における射出成
形装置および成形方法は以下の比較例と実施例に記載さ
れている項目以外はごく一般的なものであり、詳細な説
明は省略する。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, examples and comparative examples of a die apparatus for lamination molding and a lamination molding method according to the present invention will be described, but the present invention is not limited to such examples. Instead, the present invention can be implemented in various modes without departing from the gist of the present invention. The injection molding apparatus and the molding method according to the present invention are very general except for the items described in the following comparative examples and examples, and a detailed description thereof will be omitted.
【００１１】[0011]
【比較例１】一般的なゲート配置を施した食い切り部の
間隔が０．６ｍｍのグローブボックス金型を使用して、
塩ビ製の厚み０．６ｍｍのレザーの裏面に厚み２．５ｍ
ｍのポリプロピレン系発泡層を裏打ちした表皮材を金型
間に配置し、型開き量を２５ｍｍとして２００℃の溶融
ポリプロピレン樹脂を射出し、射出完了後５０トンの型
締力で型締めして３０秒間保持した後金型を開いて成形
品を取出した。得られた成形品はゲート付近の半径６０
ｍｍ程度の部分の発泡層が他の部分の発泡層よりも薄く
なっており、表皮材の表面にもアバタが生じていた。[Comparative Example 1] Using a glove box mold in which a gap between cutout portions provided with a general gate arrangement is 0.6 mm,
2.5m thick on the back of 0.6mm thick leather made of PVC
A skin material lined with a m-polypropylene foam layer is placed between the molds, the mold opening amount is set to 25 mm, and molten polypropylene resin at 200 ° C. is injected. After the injection is completed, the mold is clamped with a mold clamping force of 50 tons. After holding for 2 seconds, the mold was opened and the molded product was taken out. The obtained molded product has a radius of 60 near the gate.
The foam layer in the portion of about mm was thinner than the foam layer in the other portions, and avatars were also generated on the surface of the skin material.
【実施例１】比較例１で使用した金型の食切り部の隙間
を表皮材に１０ｋｇｆ／ｃｍ2 の圧力を加えた時の厚さ
とし、その値は１．２ｍｍであった。バリとして金型か
ら食み出す樹脂量に相当する量を余分に供給し成形品の
重量を比較例１と同一になるように射出量を調整した以
外は比較例１と同様に成形した。得られた成形品にはバ
リの発生と発泡層の全体的な厚みの減少及びレザー表面
のシボがやや薄くなった以外は良好であった。この発泡
層の全体的な厚みの減少及びレザー表面のシボがやや薄
くなる減少は比較例１においても発生していた。Example 1 The gap between the cut-off portions of the mold used in Comparative Example 1 had a thickness when a pressure of 10 kgf / cm 2 was applied to the skin material, and the value was 1.2 mm. Molding was performed in the same manner as in Comparative Example 1 except that an extra amount corresponding to the amount of resin protruding out of the mold as burrs was supplied and the injection amount was adjusted so that the weight of the molded product became the same as in Comparative Example 1. The obtained molded product was good except that burrs were generated, the overall thickness of the foam layer was reduced, and the grain on the leather surface was slightly thinned. The decrease in the overall thickness of the foam layer and the decrease in the thickness of the leather surface slightly decreased also in Comparative Example 1.
【００１２】[0012]
【実施例２】型締め開始８秒後に金型を２ｍｍ開いて２
２秒間保持すること以外は実施例１と同様の方法および
金型で成形を行った。得られた成形品にはバリの発生が
認められたが、シボの残り方や発泡層の厚みともに実施
例１より良好で、その他の成形不良は認められなかっ
た。Example 2 After 8 seconds from the start of mold clamping, open the mold by 2 mm and
Except for holding for 2 seconds, molding was performed in the same manner as in Example 1 and using a mold. Although burrs were observed in the obtained molded product, both the remaining of the grain and the thickness of the foamed layer were better than those in Example 1, and no other molding defects were observed.
【比較例２】特異なゲート配置を施した食い切り部の間
隔が０．６ｍｍのグローブボックス金型を使用して、塩
ビ製の厚み０．６ｍｍのレザー裏面にポリプロピレン系
の厚み２．５ｍｍの発泡層を裏打ちした表皮材を金型間
に配置し、型開き量２５ｍｍとして２００℃の溶融ポリ
プロピレン樹脂を射出し、射出完了後５０トンの型締力
で型締めして３０秒間保持した後に金型を開いて成形品
を取出した。得られた成形品はゲート付近半径６０ｍｍ
程度の部分の発泡層が比較例１よりもさらに薄くなって
おり、表面にもアバタが認められた。また、最終充填部
で表皮材を突き破って表面側に樹脂が染み出していた。[Comparative Example 2] Using a glove box mold in which the gap between the cutout portions provided with a unique gate arrangement is 0.6 mm, a polypropylene foam of 2.5 mm in thickness is formed on the back of a 0.6 mm thick leather of leather. The skin material backing the layer is arranged between the molds, the molten polypropylene resin is injected at 200 ° C. with a mold opening of 25 mm, and after the injection is completed, the mold is clamped with a mold clamping force of 50 tons and held for 30 seconds. Was opened and the molded product was taken out. The obtained molded product has a radius of 60 mm near the gate.
The foamed layer of the degree portion was further thinner than Comparative Example 1, and avatars were also observed on the surface. In addition, the resin penetrated through the skin material at the final filling portion and oozed out to the surface side.
【００１３】[0013]
【実施例３】比較例２で使用した金型の食切り部の隙間
を表皮材に１０ｋｇｆ／ｃｍ2 の圧力を加えた時の厚さ
とし、その値は１．２ｍｍであった。バリとして金型か
ら食み出す樹脂量に相当する量を余分に供給し成形品の
重量を比較例２と同一になるように射出量を調整した以
外は比較例２と同様にに成形した。得られた成形品には
バリの発生が認められたが、全体的な発泡層の厚みの減
少とレザー表面のシボがやや薄くなった以外は良好であ
った。この発泡層の全体的な厚みの減少及びレザー表面
のシボがやや薄くなる現象は比較例１においても発生し
ていた。Example 3 The clearance of the cut-off portion of the mold used in Comparative Example 2 was set to a thickness when a pressure of 10 kgf / cm 2 was applied to the skin material, and the value was 1.2 mm. Molding was performed in the same manner as in Comparative Example 2 except that an extra amount corresponding to the amount of resin protruding from the mold was supplied as burrs and the injection amount was adjusted so that the weight of the molded product became the same as in Comparative Example 2. Although burrs were observed in the obtained molded product, it was good except that the thickness of the entire foam layer was reduced and the grain on the leather surface was slightly thinned. The phenomenon in which the overall thickness of the foam layer was reduced and the grain on the leather surface was slightly reduced also occurred in Comparative Example 1.
【００１４】[0014]
【実施例４】型締め開始８秒後に金型を２ｍｍ開いて２
２秒間保持すること以外は実施例３と同様の方法で成形
を行った。得られた成形品にはバリの発生が認められた
が、シボの残り方や発泡層の厚みともに実施例３より良
好で、その他の成形不良は認められなかった。Example 4 After 8 seconds from the start of mold clamping, the mold was opened by 2 mm and
Molding was performed in the same manner as in Example 3 except that the temperature was kept for 2 seconds. Although burrs were observed in the obtained molded product, the remaining of the grain and the thickness of the foamed layer were better than those of Example 3, and no other molding defects were observed.
【００１５】[0015]
【発明の効果】本発明の金型の食切り部の隙間を表皮材
に１〜５０１０ｋｇｆ／ｃｍ2 の面圧を負荷した時の厚
みとすることにより、食切り部での樹脂圧力がこの圧力
以上になると溶融樹脂がバリとして金型外へ漏れること
が可能となる。したがって、部分的にキャビティ周縁部
の樹脂圧力が上昇してくるとバリの発生が樹脂圧力に対
する圧力調整弁の働きをするので、樹脂圧力が大きく上
昇することが避けられる。この結果、表皮材の損傷が軽
微に押えられる。According to the present invention, by setting the gap of the cut-off portion of the mold according to the present invention to a thickness when a surface pressure of 1 to 5010 kgf / cm 2 is applied to the skin material, the resin pressure at the cut-off portion is reduced to this pressure. As a result, the molten resin can leak out of the mold as burrs. Therefore, when the resin pressure at the peripheral portion of the cavity rises partially, the occurrence of burrs acts as a pressure regulating valve for the resin pressure, so that a large rise in the resin pressure can be avoided. As a result, damage to the skin material is slightly suppressed.
【００１６】また、表皮材がパッキンの効果を発揮して
キャビティ内残存するガスが圧縮されて圧力が上がり、
ガスが排出されるまで樹脂の流動が阻害されることがあ
った。このため表皮材を突き破って樹脂が表面に滲み出
していた。このような不良に対してもガスの排出が容易
となるため防止できた。以上のことは図４と図５を比較
することにより明確となる。即ち、バリを出さない従来
の方法は図４に示すように、ゲート付近の樹脂圧力が高
くなっている。一方、バリを出す本発明の方法において
は、図５に示す通り、ゲート付近およびキャビティ周縁
部において樹脂圧力は全体的に大幅に低下しており、本
発明の効果を明確に示している。一方、特異なゲート配
置出のキャビティ内の樹脂圧力の比較を図６と図７に示
している。図６と図７とを比較することにより、前述し
たような本発明の優れた効果が読み取れる。また、発生
したバリは製品外の表皮材を成形品形状にトリミングす
る時に一緒に切り落とすことにより、新たにバリ取り作
業を行う必要もなくなり、本発明の優れた効果を堅持で
きる。Further, the skin material exerts the effect of packing, the gas remaining in the cavity is compressed, and the pressure rises.
In some cases, the flow of the resin was hindered until gas was discharged. For this reason, the resin had pierced the skin material and oozed to the surface. Such a defect was prevented because the gas was easily discharged. The above will become clear by comparing FIG. 4 and FIG. That is, in the conventional method that does not produce burrs, as shown in FIG. 4, the resin pressure near the gate is high. On the other hand, in the method of the present invention for producing burrs, as shown in FIG. 5, the resin pressure in the vicinity of the gate and the periphery of the cavity is greatly reduced as a whole, which clearly shows the effect of the present invention. On the other hand, FIGS. 6 and 7 show a comparison of the resin pressure in the cavity with a unique gate arrangement. By comparing FIG. 6 with FIG. 7, the excellent effects of the present invention as described above can be read. Further, the generated burrs are cut off together when trimming the skin material outside the product into a molded product shape, so that it is not necessary to newly perform a deburring operation, and the excellent effect of the present invention can be maintained.
【図１】本発明に係る貼合わせ成形用金型装置および本
発明の隙間の説明図である。FIG. 1 is an explanatory view of a lamination mold apparatus according to the present invention and a gap of the present invention.
【図２】一般的なゲート配置における金型キャビティ内
の溶融樹脂の充填過程の説明図である。FIG. 2 is an explanatory view of a filling process of a molten resin in a mold cavity in a general gate arrangement.
【図３】特異なゲート配置における金型キャビティ内の
溶融樹脂の充填過程の説明図である。FIG. 3 is an explanatory diagram of a process of filling a molten resin in a mold cavity with a unique gate arrangement.
【図４】一般的なゲート配置のバリのでない構造の金型
を使用した時の、溶融樹脂の充填末期におけるキャビテ
ィ内の樹脂圧力の分布の説明図である。FIG. 4 is an explanatory diagram of a resin pressure distribution in a cavity at the final stage of filling a molten resin when a mold having a general gate arrangement and having no burr is used.
【図５】一般的なゲート配置の本発明による金型を使用
した時の、溶融樹脂の充填末期におけるキャビティ内の
樹脂圧力の分布の説明図である。FIG. 5 is an explanatory diagram of a resin pressure distribution in a cavity at a final stage of filling a molten resin when a mold according to the present invention having a general gate arrangement is used.
【図６】特異なゲート配置のバリのでない構造の金型を
使用した時の、溶融樹脂の充填末期におけるキャビティ
内の樹脂圧力の分布の説明図である。FIG. 6 is an explanatory diagram of a resin pressure distribution in a cavity at a final stage of filling a molten resin when a mold having a unique gate arrangement and having no burrs is used.
【図７】特異なゲート配置の本発明による金型を使用し
た時の、溶融樹脂の充填末期におけるキャビティ内の樹
脂圧力の分布の説明図である。FIG. 7 is an explanatory diagram of the distribution of resin pressure in a cavity at the end of filling with a molten resin when a mold according to the present invention having a unique gate arrangement is used.
１ 貼合わせ成形用金型装置 ２ 雌金型 ３ 雄金型 Ａ 食い切り部の隙間（間隔） Ｂ 噛合深さ DESCRIPTION OF SYMBOLS 1 Die apparatus for lamination molding 2 Female die 3 Male die A Clearance (space) of bite B Bite depth
Claims (3)
とコア材となる溶融樹脂を融着一体化する貼合わせ成形
用金型装置であって、 該金型の食切り部の隙間が該表皮材を５０ｋｇｆ／ｃｍ
2 で圧縮した時の厚さより広く、１ｋｇｆ／ｃｍ2 で圧
縮した時の厚さよりも狭いことを特徴とする貼合わせ成
形用金型装置。1. A lamination molding die apparatus for fusing and integrating a skin material and a molten resin serving as a core material by injection molding or press molding, wherein a gap of a cut-off portion of the die is formed by the skin material. 50 kgf / cm
2. A die apparatus for lamination molding, characterized in that it is wider than the thickness when compressed at 2 and smaller than the thickness when compressed at 1 kgf / cm 2 .
ｇｆ／ｃｍ2 で圧縮した時の厚さより広く、１ｋｇｆ／
ｃｍ2 で圧縮した時の厚さよりも狭い貼合わせ成形用金
型装置を用いて、 表皮材を配置した型締完了時の金型キャビティ容積以上
の溶融樹脂を該金型キャビティ内に射出してプレス成形
し、食切り部より余分な樹脂をバリとしてキャビティ外
に漏らすことを特徴とする貼合わせ成形法。2. The gap between the cut-off portions of the mold has a skin material of 50k.
wider than the thickness of when compressed in gf / cm 2, 1kgf /
Using a mold device for lamination molding that is narrower than the thickness when compressed at cm 2 , a molten resin is injected into the mold cavity at a volume equal to or greater than the mold cavity volume at the time of completion of mold clamping with the skin material arranged. A lamination molding method in which press molding is performed and excess resin is leaked out of the cavity as burrs from the cut-off portion.
皮材と表皮材が接する金型表面との間に隙間を設けるよ
うにしたことを特徴とする請求項２に記載の貼合わせ成
形法。3. The bonding according to claim 2, wherein a gap is provided between the skin material and the surface of the mold in contact with the skin material after the mold clamping is completed and before the cooling of the core material resin is completed. Molding method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000157624A JP2001334553A (en) | 2000-05-29 | 2000-05-29 | Mold for lamination molding and method for lamination molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000157624A JP2001334553A (en) | 2000-05-29 | 2000-05-29 | Mold for lamination molding and method for lamination molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001334553A true JP2001334553A (en) | 2001-12-04 |
Family
ID=18662224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000157624A Pending JP2001334553A (en) | 2000-05-29 | 2000-05-29 | Mold for lamination molding and method for lamination molding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001334553A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1707336A1 (en) * | 2005-03-30 | 2006-10-04 | Kasai Kogyo Co., Ltd. | Automotive interior trim component and method for manufacturing the same |
| JP2006334808A (en) * | 2005-05-31 | 2006-12-14 | Toyota Boshoku Corp | Monolithic molding method |
| JP2007055033A (en) * | 2005-08-23 | 2007-03-08 | Ube Machinery Corporation Ltd | Mold for multi-layer molding of thermoplastic resin and multi-layer molding method |
| JP2018078692A (en) * | 2016-11-08 | 2018-05-17 | 矢崎総業株式会社 | Curvature regulating member and power supply device |
-
2000
- 2000-05-29 JP JP2000157624A patent/JP2001334553A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1707336A1 (en) * | 2005-03-30 | 2006-10-04 | Kasai Kogyo Co., Ltd. | Automotive interior trim component and method for manufacturing the same |
| JP2006334808A (en) * | 2005-05-31 | 2006-12-14 | Toyota Boshoku Corp | Monolithic molding method |
| JP4492440B2 (en) * | 2005-05-31 | 2010-06-30 | トヨタ紡織株式会社 | Integrated molding method |
| JP2007055033A (en) * | 2005-08-23 | 2007-03-08 | Ube Machinery Corporation Ltd | Mold for multi-layer molding of thermoplastic resin and multi-layer molding method |
| JP2018078692A (en) * | 2016-11-08 | 2018-05-17 | 矢崎総業株式会社 | Curvature regulating member and power supply device |
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