JPH1177691A - Molding mold device - Google Patents
Molding mold deviceInfo
- Publication number
- JPH1177691A JPH1177691A JP26487597A JP26487597A JPH1177691A JP H1177691 A JPH1177691 A JP H1177691A JP 26487597 A JP26487597 A JP 26487597A JP 26487597 A JP26487597 A JP 26487597A JP H1177691 A JPH1177691 A JP H1177691A
- Authority
- JP
- Japan
- Prior art keywords
- molding
- skin
- mold
- core material
- skin material
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は自動車の内装材な
どに使用する成形品を成形するための成形用金型装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding die apparatus for molding a molded article used as an interior material of an automobile.
【０００２】[0002]
【従来の技術】従来自動車の内装材などに使用する成形
品を成形するための成形用金型装置としては、図８に示
すように、下型ａ上に木粉などを混入した熱可塑性樹脂
よりなる芯材ｂを予め加熱軟化させて載置し、また芯材
ｂの上方には、表皮保持具ｃに設けられた針につき刺す
ことにより保持された表皮材ｄを位置させ、この状態で
左右の下面に高低差Ｈを有する上型ｅを下降させて、ま
ず図９に示すように上型ｅの一方の下面ｆとカッタｇの
間で表皮材ｄの一端を挟着し、続いて上型ｅの他方の下
面ｈとカッタｉの間で表皮材ｄを挟着して、表皮材ｄに
テンションを付与しながら芯材ｂの上面に図１０に示す
ように密着させ、図１１に示すように上型ｅと下型ａの
間で表皮材ｄと芯材ｂを所定の形状に一体成形した後、
下型ａとカッタｇ，ｉの間で芯材ｂ及び表皮材ｄを同時
にカットしている。2. Description of the Related Art Conventionally, as a molding die apparatus for molding a molded article used as an interior material of an automobile, as shown in FIG. 8, a thermoplastic resin in which wood powder or the like is mixed on a lower mold a is used. The core material b is heated and softened in advance and placed thereon, and the skin material d held by piercing the needle provided on the skin holder j is positioned above the core material b. The upper mold e having the height difference H between the left and right lower surfaces is lowered, and first, one end of the skin material d is clamped between one lower surface f of the upper mold e and the cutter g as shown in FIG. A skin material d is sandwiched between the other lower surface h of the upper die e and the cutter i, and is brought into close contact with the upper surface of the core material b while giving tension to the skin material d as shown in FIG. As shown, after the skin material d and the core material b are integrally formed into a predetermined shape between the upper mold e and the lower mold a,
The core material b and the skin material d are simultaneously cut between the lower mold a and the cutters g and i.
【０００３】[0003]
【発明が解決しようとする課題】しかし上記の装置で
は、上記上型ｅと各カッタｇ，ｉの間で表皮材ｄを挟着
した状態で上型ｅが下降すると、図９に示すように芯材
ｂの一部と表皮材ｄがまずｊの部分で接触して、表皮材
ｄが芯材ｂに貼り付き、この状態でさらに上型ｅが下降
すると、表皮材ｄの端部はまだ表皮保持具により拘束さ
れているため、図１０に示すように表皮材ｄが矢印ｋ方
向へ伸ばされながら芯材ｂを下型に押し付けつつ上型ｅ
の外周下面のパーティングライン面によりしごくことに
なり、図１１に示す型締め完了後にはしごかれた芯材ｂ
の一部が金型外にはみ出して図１２に示すように余肉ｍ
となって表皮材ｄの裏面に付着し、表皮材ｄを芯材ｂの
端部に巻き込む際、この余肉ｍ部分が同時に巻き込まれ
て不良品の原因となる。However, in the above-mentioned apparatus, when the upper mold e descends with the skin material d sandwiched between the upper mold e and the cutters g and i, as shown in FIG. A part of the core material b and the skin material d first come in contact with each other at the part j, and the skin material d sticks to the core material b. In this state, when the upper mold e further descends, the end of the skin material d is As shown in FIG. 10, since the skin material d is stretched in the direction of arrow k, the core material b is pressed against the lower mold while the upper material e is being restrained by the skin holder.
The core material b which has been squeezed after the completion of the mold clamping shown in FIG.
Part protrudes out of the mold and has excess thickness m as shown in FIG.
When the skin material d is wound around the end of the core material b, the excess m portion is simultaneously wound and causes a defective product.
【０００４】このため従来では、成形後この余肉ｍを手
作業で取除く必要があるため、取除き作業に多くの工数
がかかって成形品のコストが上るなどの不具合があっ
た。[0004] For this reason, conventionally, since it is necessary to manually remove the excess thickness m after molding, there has been a problem that the removal operation requires many man-hours and increases the cost of the molded product.
【０００５】この発明はかかる従来の不具合を改善する
ためになされたもので、成形時余肉を発生することのな
い成形用金型装置を提供することを目的とするものであ
る。[0005] The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a molding die apparatus that does not generate extra thickness during molding.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、この発明の請求項１記載の発明は、パーティングラ
イン面に高低差を有する上型と、この上型の下方に設け
られた下型により、芯材及び表皮材よりなる成形用素材
を成形品に成形する金型本体と、上記下型の外周に設け
られ、かつ成形後下型の間で上記芯材をカットするカッ
タと、上記各カッタの近傍に設けられ、かつ上記表皮材
の一端を移動不能に保持し、他端を解放可能に保持する
表皮保持手段と、上記上型のパーティングライン面の低
い側に設けられ、カッタとの間で表皮材の他端を移動可
能に挟着する先行押え手段とより構成したものである。In order to achieve the above object, an invention according to claim 1 of the present invention comprises an upper die having a height difference on a parting line surface and a lower die provided below the upper die. By a mold, a mold body for molding a molding material consisting of a core material and a skin material into a molded product, and a cutter provided on the outer periphery of the lower mold, and cutting the core material between the lower molds after molding, Provided near each of the cutters, and a skin holding means for holding one end of the skin material immovably and holding the other end releasably, provided on the lower side of the upper parting line surface, It is constituted by preceding pressing means for movably clamping the other end of the skin material with the cutter.
【０００７】上記構成により、下型の間に予め加熱した
芯材を、また各表皮保持手段の間に表皮材を保持した状
態で、上型を下降させて成形を開始すると、上型ととも
に下降した先行押え手段がカッタの上面とで表皮材の他
端を移動自在に挟着するのと同時に、表皮保持手段が表
皮材の他端を解放するため、表皮材は上型と下型の間に
滑り込みながら上型と下型の間で成形用素材が成形され
るようになり、これによって上型外周下面のパーティン
グライン面により芯材がしごかれることがないので、成
形後芯材の端部に余肉部が発生することがない。[0007] With the above structure, when the upper mold is lowered and the molding is started with the preheated core material held between the lower molds and the skin material held between the respective skin holding means, the lowering is performed together with the upper mold. At the same time that the preceding holding means movably clamps the other end of the skin material with the upper surface of the cutter, the skin holding means releases the other end of the skin material, so that the skin material is between the upper mold and the lower mold. The molding material is formed between the upper mold and the lower mold while sliding on the core, so that the core material is not squeezed by the parting line surface on the outer peripheral lower surface of the upper mold. There is no excess portion at the end.
【０００８】これによって余肉部を取除く作業を必要と
せずに、表皮材を芯材の端部に巻き込むことができるた
め、作業性が大幅に向上する。As a result, the skin material can be wound around the end of the core material without the need for the operation of removing the excess portion, thereby greatly improving the workability.
【０００９】[0009]
【発明の実施の形態】以下この発明の実施の形態を図面
を参照して詳述する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００１０】図１は成形用金型装置の構成図、図２ない
し図７は同作用説明図である。FIG. 1 is a structural view of a molding die apparatus, and FIGS. 2 to 7 are explanatory views of the same operation.
【００１１】これら図において１は、上型２と下型３よ
りなる金型本体で、上型２の成形面に形成された凹部
（キャビティ）２ａと、下型３の成形面に形成された凸
部３ａの間で成形用素材４を成形品４1に成形できるよ
うになっている。In these figures, reference numeral 1 denotes a mold body composed of an upper mold 2 and a lower mold 3, which is formed in a concave portion (cavity) 2 a formed in a molding surface of the upper mold 2 and in a molding surface of the lower mold 3. the molding material 4 between the convex portion 3a is adapted to be molded into a molded article 4 1.
【００１２】上記成形用素材４は、ポリプロピレンなど
の熱可塑性樹脂に木粉などを混入した複合材よりなる芯
材４ａと、発泡塩化ビニールよりなるシート材に不織布
などの基布を裏打ちした表皮材４ｂよりなる。The molding material 4 is a core material 4a made of a composite material obtained by mixing wood powder or the like with a thermoplastic resin such as polypropylene, and a skin material lined with a sheet material made of foamed vinyl chloride and a base cloth such as a nonwoven fabric. 4b.
【００１３】また上記上型２のパーティングライン面に
は予め高低差Ｈが設けられていると共に、下型３の外周
を取り囲むように、上記上型２の高低差Ｈに応じて高さ
を変えたカッタ６が設けられている。The parting line surface of the upper mold 2 is provided with a height difference H in advance, and the height of the upper mold 2 is adjusted in accordance with the height difference H so as to surround the outer periphery of the lower mold 3. A changed cutter 6 is provided.
【００１４】これらカッタ６は、ばねなどの弾性支持手
段７により弾性支持されていて、上型２が下降するのに
伴い、上型２のパーティングライン面で押圧されて下降
するようになっており、この際カッタ６に設けられた刃
６ａと、下型３に設けられた刃３ｂにより、芯材４ａの
周辺部をカットするように構成されている。These cutters 6 are elastically supported by elastic supporting means 7 such as a spring, and are pressed by the parting line surface of the upper mold 2 to descend as the upper mold 2 descends. At this time, the periphery of the core 4a is cut by a blade 6a provided on the cutter 6 and a blade 3b provided on the lower die 3.
【００１５】一方上記カッタ６のうち、高さの高いカッ
タ６側には、針８ａを有する表皮保持手段８が、そして
高さの低いカッタ６側には、クランプ９を有する表皮保
持手段１０が設けられている。On the other hand, on the cutter 6 having the higher height, the skin holding means 8 having the needle 8a is provided, and on the cutter 6 having the lower height, the skin holding means 10 having the clamp 9 is provided. Is provided.
【００１６】クランプ９の設けられた表皮保持手段１０
は、針８ａを有する表皮保持手段８とほぼ同じ高さに設
けられた固定クランプ爪９ａと、上下方向に回動自在に
設けられた可動クランプ爪９ｂを有していて、これら固
定クランプ爪９ａと可動クランプ爪９ｂの間で表皮材４
ｂの端部を挟持できるようになっている。Skin holding means 10 provided with clamp 9
Has a fixed clamp claw 9a provided at substantially the same height as the skin holding means 8 having the needle 8a, and a movable clamp claw 9b provided rotatably in the vertical direction. And the movable claws 9b.
The end of b can be clamped.
【００１７】またクランプ９を有する表皮保持手段１０
が設けられたカッタ６の上方には、先行押え手段１２が
上型２の側面に固定されて設けられている。A skin holding means 10 having a clamp 9
Above the cutter 6 provided with, a preceding pressing means 12 is provided fixed to the side surface of the upper die 2.
【００１８】上記先行押え手段１２は、上型２にほぼ垂
直に固定されたシリンダ１２ａと、このシリンダ１２ａ
の下面より出没自在に突出された押え杆１２ｂと、上記
シリンダ１２ａ内に収容された押え杆１２ｂを下方へ付
勢するばねなどの付勢手段（図示せず）より構成されて
いて、押え杆１２ｂの先端とカッタ６の上面との間で表
皮材４ｂの一端を挟着できるようになっている。The preceding pressing means 12 includes a cylinder 12a fixed substantially vertically to the upper mold 2, and a cylinder 12a
And a biasing means (not shown) such as a spring for biasing the pressing rod 12b housed in the cylinder 12a downwardly. One end of the skin material 4b can be sandwiched between the tip of the cutter 12b and the upper surface of the cutter 6.
【００１９】次に図２ないし図７を参照して、上記成形
用金型装置の作用を説明する。Next, the operation of the above-described molding die apparatus will be described with reference to FIGS.
【００２０】予め軟化温度にまで加熱した芯材４ａを、
図２に示すように下型３上に載置し、各カッタ６に設け
られた表皮保持手段８，１０間に表皮材４ｂを載置し
て、表皮材４ｂの一端を針８ａに突き刺して保持し、表
皮材４ｂの他端はクランプ９により挟着保持する。The core material 4a, which has been heated to the softening temperature in advance,
As shown in FIG. 2, the skin material 4b is placed on the lower mold 3 and the skin material 4b is placed between the skin holding means 8 and 10 provided on each cutter 6, and one end of the skin material 4b is pierced into the needle 8a. The other end of the skin material 4b is clamped and held by the clamp 9.
【００２１】次にこの状態で図３に示すように、上型２
とともに先行押え手段１２を下降させて、先行押え手段
１２の押え杆１２ｂの先端とカッタ６の上面の間で図４
に示すように表皮材４ｂの他端が挟着されたら、クラン
プ９を解放して、表皮材４ｂの他端を自由にする。Next, in this state, as shown in FIG.
At the same time, the pre-pressing means 12 is lowered, so that the front end of the pressing rod 12b of the pre-pressing means 12 and the upper surface of the cutter 6 are moved downward as shown in FIG.
When the other end of the skin material 4b is clamped as shown in FIG. 7, the clamp 9 is released to make the other end of the skin material 4b free.
【００２２】そしてこの状態でさらに上型２を下降させ
ると、表皮材４ｂが芯材４ａのもっとも高い部分に当接
して、表皮材４ｂが芯材４ａに貼り付くが、以後上型２
の下降に伴い先行押え手段１２の押え杆１２ｂとカッタ
６の間に挟着された表皮材４ｂの他端側が表皮材４ｂの
テンションにより上下型２，３間に滑り込むため、上型
２の外周下面のパーティングライン面により芯材４ａが
しごかれることもなく、芯材４ｂの上面に表皮材４ｂが
密着された状態で上型２と下型３の間で成形用素材４が
成形品４1に成形されると共に、下型３に設けられた刃
３ｂとカッタ６の間で芯材４ａの周辺部がカットされ
る。When the upper mold 2 is further lowered in this state, the skin material 4b comes into contact with the highest portion of the core material 4a, and the skin material 4b is stuck to the core material 4a.
The other end of the skin material 4b sandwiched between the holding rod 12b of the preceding holding means 12 and the cutter 6 slides between the upper and lower dies 2 and 3 due to the tension of the skin material 4b with the lowering of the upper die 2. The molding material 4 is formed between the upper mold 2 and the lower mold 3 in a state in which the core material 4a is not squeezed by the lower parting line surface and the skin material 4b is in close contact with the upper surface of the core material 4b. 4 while being molded into 1, the peripheral portion of the core member 4a between the blades 3b and the cutter 6 provided on the lower mold 3 is cut.
【００２３】なお上記成形工程で、表皮材４ｂの滑り込
みを許容するため、図６に示すように上型２と下型３の
間には、表皮材４ｂの厚み分のクリアランスＴが予め設
けられている。In the above-mentioned molding step, a clearance T corresponding to the thickness of the skin material 4b is provided in advance between the upper mold 2 and the lower mold 3 as shown in FIG. ing.
【００２４】以上のようにして成形品４1の成形が完了
して、上型２が元の位置まで上昇したら、成形品４1を
取出して、カットされなかった表皮材４ｂの周辺部を芯
材４ａの端部より図７の（イ）に示すようにやや長くカ
ットした後、図７の（ロ）に示すように表皮材４ｂを芯
材４ａの端部へ巻き込むもので、成形工程で芯材４ａの
端部に余肉が発生することがないので、余肉を取除く作
業を必要とせずに表皮材４ｂの巻き込み作業が行えるよ
うになる。The above manner of molded article 4 1 is completed, when the upper die 2 is raised to the original position, taking out the molded article 4 1, core peripheral portion of the skin material 4b which has not been cut As shown in FIG. 7A, the surface material 4b is cut slightly longer than the end of the material 4a, and then the skin material 4b is wound around the end of the core material 4a as shown in FIG. Since no excess material is generated at the end of the core material 4a, the operation of winding the skin material 4b can be performed without the need to remove the excess material.
【００２５】[0025]
【発明の効果】この発明は以上詳述したように、表皮保
持手段に保持された表皮材が芯材に接触する前に、表皮
材の他端が先行押え手段とカッタの間で移動自在に保持
された後、表皮保持手段により他端が解放されるため、
上型と下型の間に表皮材が滑り込みながら、上型と下型
の間で成形用素材が成形されるようになり、上型外周下
面のパーティングライン面より芯材がしごかれることが
ないので、芯材の端部に余肉部が発生することがない。As described above in detail, according to the present invention, before the skin material held by the skin holding means contacts the core material, the other end of the skin material can be freely moved between the preceding pressing means and the cutter. After being held, the other end is released by the skin holding means,
The molding material is formed between the upper and lower molds while the skin material slides between the upper and lower molds, and the core material is squeezed from the parting line surface on the outer peripheral lower surface of the upper mold. Because there is no excess, no extra thickness is generated at the end of the core material.
【００２６】これによって余肉部を取除く作業を必要と
せずに、表皮材を芯材の端部に巻き込むことができるた
め、余肉部を取除くための工数が不要となると共に、作
業能率も向上するため、成形品のコストダウンが図れる
ようになる。With this, the skin material can be wound around the end of the core material without the need for the operation of removing the surplus portion, so that the man-hour for removing the surplus portion becomes unnecessary and the work efficiency is reduced. Therefore, the cost of the molded product can be reduced.
【００２７】また表皮材は表皮保持手段と先行押え手段
との間でテンションを付与しながら成形するため、成形
後の成形品の表皮にシワが発生することがなく、これに
よって品質の良好な成形品が得られるようになる。Further, since the skin material is formed while applying tension between the skin holding means and the preceding pressing means, no wrinkles are generated on the skin of the molded article after molding. Goods can be obtained.
【図１】この発明の実施の形態になる成形用金型装置の
構成図である。FIG. 1 is a configuration diagram of a molding die apparatus according to an embodiment of the present invention.
【図２】この発明の実施の形態になる成形用金型装置の
成形時の作用説明図である。FIG. 2 is an operation explanatory view at the time of molding of a molding die apparatus according to an embodiment of the present invention.
【図３】この発明の実施の形態になる成形用金型装置の
成形時の作用説明図である。FIG. 3 is an operation explanatory view at the time of molding of the molding die apparatus according to the embodiment of the present invention.
【図４】この発明の実施の形態になる成形用金型装置の
成形時の作用説明図である。FIG. 4 is an explanatory diagram of an operation at the time of molding of the molding die apparatus according to the embodiment of the present invention.
【図５】この発明の実施の形態になる成形用金型装置の
成形時の作用説明図である。FIG. 5 is an explanatory diagram of an operation at the time of molding of the molding die apparatus according to the embodiment of the present invention.
【図６】この発明の実施の形態になる成形用金型装置の
成形時の作用説明図である。FIG. 6 is an explanatory diagram of an operation at the time of molding of the molding die apparatus according to the embodiment of the present invention.
【図７】（イ）及び（ロ）は成形された成形品の端部を
巻き込む工程を示す説明図である。FIGS. 7 (a) and 7 (b) are explanatory views showing a step of winding an end of a molded article.
【図８】従来の成形用金型装置の構成図である。FIG. 8 is a configuration diagram of a conventional molding die apparatus.
【図９】従来の成形用金型装置の成形時の作用を示す説
明図である。FIG. 9 is an explanatory view showing an operation at the time of molding of a conventional molding die apparatus.
【図１０】従来の成形用金型装置の成形時の作用を示す
説明図である。FIG. 10 is an explanatory view showing an operation at the time of molding of a conventional molding die apparatus.
【図１１】従来の成形用金型装置の成形時の作用を示す
説明図である。FIG. 11 is an explanatory view showing an operation at the time of molding of a conventional molding die apparatus.
【図１２】従来の成形用金型装置の成形時の作用を示す
説明図である。FIG. 12 is an explanatory view showing an operation at the time of molding of a conventional molding die apparatus.
１ 金型本体 ２ 上型 ３ 下型 ４ 成形用素材 ４1 成形品 ４ａ 芯材 ４ｂ 表皮材 ６ カッタ ６ａ 刃 ７ 弾性支持手段 ８ 表皮支持手段 ８ａ 針 ９ クランプ １０ 表皮支持手段 １２ 先行押え手段 １２ａ シリンダ １２ｂ 押え杆DESCRIPTION OF SYMBOLS 1 Mold main body 2 Upper mold 3 Lower mold 4 Molding material 4 1 Molded product 4a Core material 4b Skin material 6 Cutter 6a Blade 7 Elastic support means 8 Skin support means 8a Needle 9 Clamp 10 Skin support means 12 Preceding press means 12a Cylinder 12b Holding rod
Claims (1)
上型および下型により、芯材及び表皮材よりなる成形用
素材を成形品に成形する金型本体と、上記下型の両側に
設けられ、かつ成形後下型の間で上記芯材をカットする
カッタと、上記各カッタの近傍に設けられ、かつ上記表
皮材の一端を移動不能に保持し、他端を解放可能に保持
する表皮保持手段と、上記上型のパーティングライン面
の低い側に設けられ、カッタとの間で表皮材の他端を移
動可能に挟着する先行押え手段とを具備したことを特徴
とする成形用金型装置。1. A mold body for molding a molding material consisting of a core material and a skin material into a molded article by an upper mold and a lower mold having a height difference on a parting line surface, and provided on both sides of the lower mold. And a cutter for cutting the core material between the lower molds after molding, and a skin holding member provided near each of the cutters, for holding one end of the skin material immovably and holding the other end releasably. And a pre-pressing means provided on the lower side of the parting line surface of the upper die and movably clamping the other end of the skin material with the cutter. Mold device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26487597A JPH1177691A (en) | 1997-09-11 | 1997-09-11 | Molding mold device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26487597A JPH1177691A (en) | 1997-09-11 | 1997-09-11 | Molding mold device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1177691A true JPH1177691A (en) | 1999-03-23 |
Family
ID=17409446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26487597A Pending JPH1177691A (en) | 1997-09-11 | 1997-09-11 | Molding mold device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1177691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6932937B2 (en) * | 2001-03-06 | 2005-08-23 | Araco Kabushiki Kaisha | Methods and apparatus for manufacturing molded articles |
-
1997
- 1997-09-11 JP JP26487597A patent/JPH1177691A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6932937B2 (en) * | 2001-03-06 | 2005-08-23 | Araco Kabushiki Kaisha | Methods and apparatus for manufacturing molded articles |
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