JPH0474613A - Manufacture of composite formed part and press die therefor - Google Patents
Manufacture of composite formed part and press die thereforInfo
- Publication number
- JPH0474613A JPH0474613A JP18719090A JP18719090A JPH0474613A JP H0474613 A JPH0474613 A JP H0474613A JP 18719090 A JP18719090 A JP 18719090A JP 18719090 A JP18719090 A JP 18719090A JP H0474613 A JPH0474613 A JP H0474613A
- Authority
- JP
- Japan
- Prior art keywords
- skin layer
- base material
- press
- protrusion
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000465 moulding Methods 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 36
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 11
- -1 polypropylene Polymers 0.000 abstract description 4
- 239000004743 Polypropylene Substances 0.000 abstract description 3
- 229920001155 polypropylene Polymers 0.000 abstract description 3
- 210000003491 skin Anatomy 0.000 description 33
- 230000007547 defect Effects 0.000 description 2
- 210000002615 epidermis Anatomy 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
［産業上の利用分野１
本発明は、自動車の各種トリム等の内装部品等の複合成
形体の製造方法及びその製造に使用されるプレス型に関
するものである。[INDUSTRIAL APPLICATION FIELD 1] The present invention relates to a method for manufacturing composite molded bodies such as interior parts such as various trims of automobiles, and a press die used in the manufacturing thereof.
【従来技術］
例えば自動車の各種トリム等は、表皮層に基材が圧接合
された複合成形体となっており、これらの製造方法とし
ては、コールドプレス法が多く用いられている。
上記コールドプレス法としては１例えば特開昭６２−１
８１１１号公報および特開昭６２−１８１１４号公報に
よって提案されているが、これを第５図によって説明す
る。
１は上型で、図示されていない加圧装置によって上下し
、一対となる下型２上の被プレス品を押圧するものであ
る。
前記上型１と下型２の成形面５．６の中間部には、加圧
前に表皮層４を位置させておき、前記下型の成形面６に
は溶融状態の基材材料３が載置される。
前記上型１と前記下型２の各成形面５．６の基材材料３
の成形領域外周端の延長部には、押圧方向に対して抜き
勾配を有する側面ランド部（以下ランドという）７．８
が形成されており、該ランド７．８の成形押圧時の間隙
は、表皮層４の押圧・成形時の厚みと路間−となるよう
に形成されている。
上記構成の公知装置の作用について説明する。
加圧前、上型１と下型２の成形面５．６の中間に厚さ０
．３〜４＋ａｍの織布、カーペット等の立毛繊維製品や
軟質塩化ビニール樹脂等のシート状の表皮層４が、図示
されていないクランプ装置により保持されている。
そして３０〜５０℃程度に調整された下型２の形成面６
には、図示されていない押し出し成形機のノズルを介し
て、１５０〜２５０℃に加熱され半溶融状態となった、
例えばポリプロビレ、ン、ポリエチレン等の熱可塑性樹
脂の基材材料３が載置され、図示されていない加圧装置
により上型１が下方へ押圧され、下型２との間で表皮層
４と基材材料３が圧縮接合されて複合成形体が製造され
る。
このとき前記上型１と前記下型２のランド部７゜８の間
は、表皮層４の押圧・成形時の厚みと路間−の間隙しか
形成されていないので、基材材料３が半溶融状態であっ
ても前記ランド７．８から型外へ流出することはなく、
パリも発生しないように構成されている。
上記プレス型により、第１図に示す自動車のアームレス
ト付きドアトリム部２０をプレス成形する場合、前記成
形面にアームレスト部２０ａ用の凸型面を形成しなけれ
ばならない。しかし、前記アームレスト部２０ａは、成
形面より急角度で隆起しているので、前記上、下型のよ
うなプレス型では、表皮層４の両端がクランプ装置で保
持されているため、このままプレスした場合略垂直に隆
起しているアームレスト部２０ａに当接する表皮層４の
みが大きく延ばされ、他の部位に比較して非常に薄くな
る傾向がある。
このアームレスト部２０ａはとりわけクツション性が要
求されるので、特にクツション層が薄肉化することは品
質を低下させることになる。
このため最近第６図に示すように、上型１１内に吸引孔
１１ａを設け、表皮層４を予め前記上型１１に吸着・真
空成形したままの状態で、下型１２の成形面１６に突出
して設けた凸部１６ａを持つ下型１２上に基材材料３を
前記方法で載置し、上型１１を押圧してプレス成形する
スタンピングモールド工法が開発されている。
【発明が解決しようとする課題】
しかしながら、上記工法で製作されたドアトリムにおい
ても、成形面全体で表皮層を吸引するため、先にアーム
レスト部以外の部分が吸着されてしまい、急に窪んでい
るアームレスト部は吸着が遅れてこの部分で延ばされる
結果となり、前記同様アームレスト部が薄くなる傾向は
ほとんど改善されていない。
このような状況に鑑み、複合成形体のプレス成形法にお
いて、急角度で高い隆起を有するアームレスト部等のク
ツション層の厚さが薄くならず、そのクツション性能を
低下させないプレス成形方法およびプレス型の早期開発
が課題とされていた。
本発明は上述の課題を解決し、従来のプレス成形方法を
特に変えることなく、アームレスト部等の突出部の表皮
層の厚みを正常に保ち、全体が均一の厚みを有するクツ
ション性のよい複合成形体の成形を可能とするプレス方
法およびプレス型を提供することを目的とする。[Prior Art] For example, various types of trim for automobiles are composite molded products in which a base material is pressure-bonded to a skin layer, and a cold press method is often used as a manufacturing method for these products. Examples of the above-mentioned cold press method include 1, for example, JP-A-62-1
This is proposed in Japanese Patent Laid-Open No. 8111 and Japanese Patent Application Laid-Open No. 18114/1982, and will be explained with reference to FIG. Reference numeral 1 denotes an upper mold, which is moved up and down by a pressure device (not shown) to press the product to be pressed on a pair of lower molds 2. Before pressurization, a skin layer 4 is placed between the molding surfaces 5 and 6 of the upper mold 1 and the lower mold 2, and a molten base material 3 is placed on the molding surface 6 of the lower mold. It will be placed. Base material 3 of each molding surface 5.6 of the upper mold 1 and the lower mold 2
A side land portion (hereinafter referred to as land) 7.8 having a draft angle with respect to the pressing direction is provided at the extension of the outer peripheral edge of the molding area.
The gap between the land 7.8 when the land 7.8 is pressed and molded is formed to be equal to the thickness of the skin layer 4 when it is pressed and molded. The operation of the known device having the above configuration will be explained. Before pressing, there is a thickness of 0 between the molding surfaces 5.6 of the upper mold 1 and lower mold 2.
．． A sheet-like skin layer 4 made of a 3-4+am woven fabric, a napped fiber product such as a carpet, or a soft vinyl chloride resin is held by a clamp device (not shown). Then, the forming surface 6 of the lower mold 2 is adjusted to about 30 to 50°C.
was heated to a semi-molten state through a nozzle of an extruder (not shown) at 150 to 250°C.
For example, a base material 3 of thermoplastic resin such as polypropylene, polyethylene, etc. is placed, and the upper mold 1 is pressed downward by a pressure device (not shown), and the skin layer 4 and the base material are pressed down between the upper mold 1 and the lower mold 2. The materials 3 are compressed and joined to produce a composite molded body. At this time, between the land portions 7° 8 of the upper mold 1 and the lower mold 2, only the gap between the thickness of the skin layer 4 during pressing and molding and the gap is formed, so that the base material 3 is half-filled. Even in a molten state, it does not flow out of the mold from the land 7.8,
Paris is also configured so that it does not occur. When press-molding the armrest-equipped door trim part 20 of the automobile shown in FIG. 1 using the press die, a convex surface for the armrest part 20a must be formed on the molding surface. However, since the armrest part 20a is raised at a steep angle from the molding surface, in the press molds such as the upper and lower molds, both ends of the skin layer 4 are held by clamp devices, so if the armrest part 20a is not pressed as it is, In this case, only the skin layer 4 that comes into contact with the armrest portion 20a, which is raised approximately vertically, is greatly stretched and tends to be extremely thin compared to other parts. Since this armrest portion 20a is particularly required to have cushioning properties, a thinner cushioning layer in particular will deteriorate the quality. For this reason, recently, as shown in FIG. 6, a suction hole 11a is provided in the upper mold 11, and the skin layer 4 is attached to the molding surface 16 of the lower mold 12 while the skin layer 4 is previously adsorbed and vacuum-formed on the upper mold 11. A stamping molding method has been developed in which the base material 3 is placed on the lower mold 12 having the protruding convex portion 16a using the method described above, and the upper mold 11 is pressed to press-form the base material 3. [Problems to be Solved by the Invention] However, even in door trims manufactured using the above method, since the skin layer is sucked over the entire molded surface, parts other than the armrest parts are sucked first, resulting in sudden depressions. As a result, the armrest portion is stretched in this portion due to a delay in suction, and the tendency of the armrest portion to become thin as described above is hardly improved. In view of this situation, we have developed a press molding method for composite molded products that does not reduce the thickness of the cushion layer in areas such as armrests with steep angles and high ridges, and that does not reduce the cushioning performance. Early development was considered an issue. The present invention solves the above-mentioned problems, and without making any particular changes to the conventional press molding method, maintains the thickness of the skin layer of protruding parts such as armrest parts to a normal level, and produces composite molding with good cushioning properties that has a uniform thickness throughout. An object of the present invention is to provide a pressing method and a press die that enable molding of a body.
上記目的を達成するため本発明は、成形品に対応する凹
、凸部が夫々形成され、型締め時前記凹、凸部間にキャ
ビティが形成される一組のプレス型により、表皮層と基
材層とからなり一部に突出部を有する複合成形体を製造
する方法において、プレス時予め前記凹部に凸部を嵌合
せしめて表皮層の凸部を成形した後、前記表皮層を成形
面に位置せしめた状態で、溶融状態の基材材料を表皮層
の裏面側に載置させてプレス成形する複合成形体の製造
方法と、表皮層と基材層とからなり、且つ一部に突出部
を有する複合成形体を製造するプレス型であって、一方
のプレス型成形面の一部に凸部が形成されており、前記
凹部に入り込むように他方のプレス型成形面から突出し
ているアシストプラグが、前記両成形面に対し独立して
摺動自在に設けられたプレス型とからなる。In order to achieve the above object, the present invention uses a set of press molds in which concave and convex portions corresponding to the molded product are respectively formed, and a cavity is formed between the concave and convex portions when the mold is clamped. In a method for manufacturing a composite molded body comprising a material layer and having a protrusion in a part, the convex part is fitted into the concave part in advance during pressing to form the convex part of the skin layer, and then the skin layer is placed on the molding surface. A method for manufacturing a composite molded article, in which a molten base material is placed on the back side of a skin layer and press-molded in a state in which the composite molded product is made of a skin layer and a base material layer, and a part of the composite molded body has a protruding part. A press mold for manufacturing a composite molded article having a molding surface, the assist plug having a convex part formed on a part of the molding surface of one press mold, and protruding from the molding surface of the other press mold so as to fit into the recess. and a press mold provided independently and slidably on both molding surfaces.
本発明は以上の構成としたので、複合成形体、例えば後
記ドアトリムのプレス成形に際しては、プレスの上型お
よび下型の各成形面の中間にまず、表皮材とクツション
材とが積層された表皮層が周知のクランプ装置により装
入されるが、この時張力は比較的弱くしておく。
次に、これも周知の油圧シリンダーを作動させ、凸部を
ゆっくり押上げていき、その頭部を前記凹部に嵌合し、
表皮層の凸部を形成する。この状態の表皮層を例えば上
型の成形層に密着保持させた後、前記油圧シリンダーを
緩め前記凸部を下型の成形面まで戻す。
この間に、表皮層の裏側、例えば３０〜５０℃に調整さ
れた前記下型の成形面上の略中夫に位置する前記凹部の
両サイドの成形面に、１５０〜２５０℃に加熱され半溶
融状態になった基材材料を周知のノズルによって位置せ
しめる。
そして加圧装置により前記上型を下方に押し下げれば、
前記凸部番と前記凹部とは再度嵌合し抑圧成形するとと
もに、前記表皮層２４と基材材料２３全体が圧縮・成形
される。
この時既に、上型の成形面の凹部と前記凸部とにより表
皮層を殆ど引き延ばさないように突出部を形成しである
ので、全体が略均−な厚みの複合成形体を形成すること
ができる。
［実施例］
本発明を第１図に示す自動車のドアトリムに適用した例
を第２図〜第４図によって詳細に説明する。
第２図は本発明プレス型の断面図であり、第６図に示し
た従来例に相当するものである。
２１は、下型２２と一対のプレス成形用上型であり、第
６図に示したプレス型と同じように、前記上型２１には
成形面２５にアームレスト部成形用の凹部２５ａが形成
されているとともに、成形面２５から上型２１の裏面に
向かって表皮層吸着用の吸気孔１１ａと、吸気溝１１ｂ
が設けられている。
一方前記下型２２の成形面２６には、前記凹部２５ａと
嵌合する凸部、即ち同形のアシストプラグ２７の頭部２
７ａが前記成形面２６より突出して設けられており、図
示されていない油圧シリンダーにより上・下動可能に下
型２２に遊嵌されている。上記凸部、即ちアシストプラ
グ２７と前記凹部２５ａとは、両者が嵌合したとき両者
間に成形後の後記表皮層２４の厚さに基材２３層の厚さ
を加えた厚さに相当する空間（キャビティ）が存在する
ようにその大きさが決定される。
前記ドアトリムのプレス成形に際しては、以上のように
構成された上型２１および下型２２の各成形面２５．２
６の中間にまず、ＰＶｃ系シートからなる表皮材１７と
ポリプロピレン系のクツション材１８が積層された表皮
層２４が、図示されていないクランプ装置により装入さ
れるが、この時張力は比較的弱くしておく。
次に図示されていない油圧シリンダーを作動させ、アシ
ストプラグ２７をゆっくり押上げていき、その頭部２７
ａを前記凹部２５ａに嵌合する。ここで真空装置（図示
せず）を作動して吸気溝１１ｂに連結している吸気孔１
１ａがら吸気し、第３図に示すように前記表皮層２４を
前記成形面２５に吸着・保持させた後、前記油圧シリン
ダーを緩め前記アシストプラグ２７を下型２２の成形面
２６まで下げる。
この間、３０〜５０℃に調整された前記下型２２の成形
面２６上の略中夫に位置する前記アシストプラグ２７の
両サイドの成形面２６に、１５０〜２５０℃に加熱され
半溶融状態になった基材材料２３を図示されていないノ
ズルによって載置せしめる。
そして図示されていない加圧装置により前記上型２１を
下方に押し下げれば、第４図に示すように前記アシスト
プラグ２７と前記凹部２５ａとは再度嵌合し押圧成形す
るとともに、前記表皮層２４と基材材料２３全体が圧縮
・成形される。
この時は既に、上型の成形面２５の凹部２５ａとアシス
トプラグ２７とにより表皮層を殆ど引き延ばさないよう
に突出部を形成しであるので、全体が略均−な厚みの複
合成形体であるドアトリムを形成することができる。
上記実施例では、基材材料２３を下型２２に直接載置す
るようにしたが、下型２２に表皮層２４を配置しその上
、即ち表皮層の裏面に基材材料２３を載置するようにし
てもよい。この場合、上記実施例とは逆となり下型に凹
部を、上型にはアシストプラグを上、下指動自在に設け
るものである。
また油圧シリンダーにかえてエアーシリンダーやモータ
ー等のアクチュエータも使用することができる。
更に、アームレスト部の表皮層の成形特押上げたアシス
トプラグを、下型の成形面進上げずにそのままプレス成
型することも可能である。Since the present invention has the above configuration, when press forming a composite molded article, for example, a door trim described later, first, a skin material and a cushioning material are laminated between the molding surfaces of the upper mold and the lower mold of the press. The layers are loaded using known clamping devices, the tension being relatively low. Next, a well-known hydraulic cylinder is operated to slowly push up the convex part, and its head is fitted into the concave part,
Forms convex parts of the epidermal layer. After the skin layer in this state is held in close contact with, for example, the molding layer of the upper mold, the hydraulic cylinder is loosened and the convex portion is returned to the molding surface of the lower mold. During this time, the back side of the skin layer, for example, the molding surfaces on both sides of the recess located approximately at the center on the molding surface of the lower mold, which is adjusted to 30 to 50°C, are heated to 150 to 250°C and semi-molten. The conditioned substrate material is positioned by means of a well-known nozzle. Then, if the upper mold is pushed down by a pressure device,
The convex part number and the concave part are fitted again and pressed and molded, and the skin layer 24 and the base material 23 are entirely compressed and molded. At this time, a protrusion has already been formed by the concave part of the molding surface of the upper mold and the convex part so that the skin layer is hardly stretched, so that a composite molded product having a substantially uniform thickness as a whole can be formed. I can do it. [Example] An example in which the present invention is applied to a door trim of an automobile shown in FIG. 1 will be described in detail with reference to FIGS. 2 to 4. FIG. 2 is a sectional view of the press mold of the present invention, which corresponds to the conventional example shown in FIG. Reference numeral 21 designates a lower mold 22 and a pair of upper molds for press molding. Similar to the press mold shown in FIG. In addition, from the molding surface 25 to the back surface of the upper mold 21, there are air intake holes 11a for adsorbing the skin layer and air intake grooves 11b.
is provided. On the other hand, the molding surface 26 of the lower mold 22 has a protrusion that fits into the recess 25a, that is, the head 2 of the assist plug 27 having the same shape.
7a is provided to protrude from the molding surface 26, and is loosely fitted into the lower mold 22 so as to be movable up and down by a hydraulic cylinder (not shown). The above-mentioned convex part, that is, the assist plug 27 and the above-mentioned concave part 25a have a thickness corresponding to the sum of the thickness of the later-described skin layer 24 after molding between them and the thickness of the base material 23 layer when both are fitted together. The size is determined so that a space (cavity) exists. When press-molding the door trim, each molding surface 25.2 of the upper mold 21 and lower mold 22 configured as described above is used.
First, a skin layer 24 in which a skin material 17 made of a PVc sheet and a cushion material 18 made of polypropylene are laminated is placed between the parts 6 and 6 by a clamping device (not shown), but at this time the tension is relatively weak. I'll keep it. Next, a hydraulic cylinder (not shown) is activated to slowly push up the assist plug 27, and its head 27
a into the recess 25a. Here, a vacuum device (not shown) is operated to connect the intake hole 1 to the intake groove 11b.
1a, and after the skin layer 24 is adsorbed and held on the molding surface 25 as shown in FIG. 3, the hydraulic cylinder is loosened and the assist plug 27 is lowered to the molding surface 26 of the lower mold 22. During this time, the molding surfaces 26 on both sides of the assist plug 27 located approximately at the center of the molding surface 26 of the lower mold 22, which has been adjusted to 30-50°C, are heated to 150-250°C and become semi-molten. The resulting base material 23 is placed by a nozzle (not shown). Then, when the upper mold 21 is pushed down by a pressure device (not shown), the assist plug 27 and the recess 25a are fitted again and press molded, as shown in FIG. The entire base material 23 is compressed and molded. At this time, a protrusion has already been formed by the recess 25a of the molding surface 25 of the upper mold and the assist plug 27 so as not to stretch the skin layer, so the entire composite molded product has a substantially uniform thickness. Can form certain door trims. In the above embodiment, the base material 23 is placed directly on the lower mold 22, but the skin layer 24 is placed on the lower mold 22, and the base material 23 is placed on top of it, that is, on the back side of the skin layer. You can do it like this. In this case, contrary to the above embodiment, a recess is provided in the lower die, and an assist plug is provided in the upper die so as to be movable upward and downward. Also, an actuator such as an air cylinder or a motor can be used instead of the hydraulic cylinder. Furthermore, it is also possible to press-mold the assist plug, which has been specially pressed up to form the skin layer of the armrest portion, as it is without advancing the molding surface of the lower mold.
本発明は以上のごとく、成形品に対応する凹、凸部が夫
々形成され、型締め時前記凹、凸部間にキャビティが形
成される一組のプレス型により、表皮層と基材層とから
なり一部に突出部を有する複合成形体を製造する方法に
おいて、プレス時予め前記凹部に凸部を嵌合せしめて表
皮層の凸部を成形した後、前記表皮層を成形面に位置せ
しめた状態で、溶融状態の基材材料を表皮層の裏面側に
載置させてプレス成形する複合成形体の製造方法と、表
皮層と基材層とからなり、且つ一部に突出部を有する複
合成形体を製造するプレス型であって、一方のプレス型
成形面の一部に凸部が形成されており、前記凹部に入り
込むように他方のプレス型成形面から突出しているアシ
ストプラグが、前記両成形面に対し独立して摺動自在に
設けられたプレス型とからなるので、アームレスト部等
の突出部を有する複合成形体において、前記突出部の表
皮層が引き延ばされ薄くなりすぎ、クツション性が悪化
する等の欠陥・不良を出すことなく容１．
３．
５゜
１１．２１・・・上型、２．１２．２２・・・下型、２
３・・・基材材料、４．２４・・・表皮層、６．１５．
１６．２５．２６・・・成形面、ａ・・・凹部、７．８
．１７．１８・・・ランド、ａ、２７・・・凸部（アシ
ストプラグ）。As described above, the present invention is capable of forming a skin layer and a base material layer by using a set of press molds in which concave and convex portions corresponding to the molded product are respectively formed, and a cavity is formed between the concave and convex portions when the mold is clamped. In the method of manufacturing a composite molded article having a protrusion in a part, the convex part is fitted into the concave part in advance during pressing to form the convex part of the skin layer, and then the skin layer is positioned on the molding surface. A method for producing a composite molded article, in which a base material in a molten state is placed on the back side of a skin layer and press-molded; A press mold for producing a molded article, in which a convex portion is formed in a part of the molding surface of one of the press molds, and an assist plug protrudes from the molding surface of the other press mold so as to fit into the recess. Since the press mold is independently and slidably provided on both molding surfaces, in a composite molded article having a protruding part such as an armrest part, the skin layer of the protruding part is stretched and becomes too thin. 1. without any defects or defects such as deterioration of cushioning properties. 3. 5゜11.21... Upper mold, 2.12.22... Lower mold, 2
3... Base material, 4.24... Epidermal layer, 6.15.
16.25.26... Molding surface, a... Concave portion, 7.8
．． 17.18...Land, a, 27...Protrusion (assist plug).
Claims (1)
時前記凹、凸部間にキャビティが形成される一組のプレ
ス型により、表皮層と基材層とからなり一部に突出部を
有する複合成形体を製造する方法において、プレス時予
め前記凹部に凸部を嵌合せしめて表皮層の凸部を成形し
た後、前記表皮層を成形面に位置せしめた状態で、溶融
状態の基材材料を表皮層の裏面側に載置させてプレス成
形することを特徴とする複合成形体の製造方法。 ２）成形品に対応する凹、凸部が夫々形成され、型締め
時前記凹、凸部間にキャビティが形成される一組のプレ
ス型により、表皮層と基材層とからなり一部に突出部を
有する複合成形体を製造する方法において、プレス時予
め前記凹部に凸部を嵌合せしめて表皮層の凸部を成形し
た後、成形面に開口した吸気孔により前記表皮層を成形
面に位置せしめた状態で、溶融状態の基材材料を表皮層
の裏面側に位置させてプレス成形することを特徴とする
複合成形体の製造方法。 ３）表皮層と基材層とからなり、且つ一部に突出部を有
する複合成形体を製造するプレス型であって、一方のプ
レス型成形面の一部に凸部が形成されており、前記凹部
に入り込むように他方のプレス型成形面から突出してい
るアシストプラグが、前記両成形面に対し独立して摺動
自在に設けられていることを特徴とするプレス型。[Scope of Claims] 1) A skin layer and a base material layer are formed by a set of press molds in which concave and convex portions corresponding to the molded product are respectively formed, and a cavity is formed between the concave and convex portions when the mold is clamped. In a method for producing a composite molded body having a protrusion in a part, the protrusion is fitted into the recess in advance during pressing to form the protrusion of the skin layer, and then the skin layer is positioned on the molding surface. 1. A method for producing a composite molded article, which comprises placing a base material in a molten state on the back side of a skin layer and press-molding the base material in a molten state. 2) A set of press molds is used in which concave and convex portions corresponding to the molded product are respectively formed, and a cavity is formed between the concave and convex portions when the mold is clamped. In a method for manufacturing a composite molded article having a protrusion, the protrusion is fitted into the recess in advance during pressing to form the protrusion of the skin layer, and then the skin layer is placed on the molding surface through an air intake hole opened in the molding surface. 1. A method for producing a composite molded article, which comprises press-molding a base material in a molten state on the back side of a skin layer. 3) A press mold for manufacturing a composite molded body consisting of a skin layer and a base material layer and having a protrusion in a part, the mold having a protrusion formed in a part of the molding surface of one of the press molds, A press mold characterized in that an assist plug protruding from the molding surface of the other press mold so as to fit into the recess is provided so as to be slidable independently on both molding surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2187190A JP2951698B2 (en) | 1990-07-17 | 1990-07-17 | Method for producing composite molded article and press mold thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2187190A JP2951698B2 (en) | 1990-07-17 | 1990-07-17 | Method for producing composite molded article and press mold thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0474613A true JPH0474613A (en) | 1992-03-10 |
| JP2951698B2 JP2951698B2 (en) | 1999-09-20 |
Family
ID=16201682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2187190A Expired - Lifetime JP2951698B2 (en) | 1990-07-17 | 1990-07-17 | Method for producing composite molded article and press mold thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2951698B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100294533B1 (en) * | 1999-04-20 | 2001-07-04 | 전성도 | Forming method and device of wallboard for N.V.H of car which has foaming layer |
| US6328924B1 (en) * | 1992-08-26 | 2001-12-11 | Sumitomo Chemical Company, Ltd. | Instrument panel |
| JP2002192606A (en) * | 2000-12-27 | 2002-07-10 | Yoshino Kogyosho Co Ltd | Blow molding method and device therefor |
| US6596218B2 (en) * | 1998-09-24 | 2003-07-22 | Krauss-Maffei Kunststofftechnik Gmbh | Method of producing coated molded plastic articles, and injection mold |
| JP2013146956A (en) * | 2012-01-20 | 2013-08-01 | Toyoda Gosei Co Ltd | Method for manufacturing decorative molded article |
-
1990
- 1990-07-17 JP JP2187190A patent/JP2951698B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6328924B1 (en) * | 1992-08-26 | 2001-12-11 | Sumitomo Chemical Company, Ltd. | Instrument panel |
| US6596218B2 (en) * | 1998-09-24 | 2003-07-22 | Krauss-Maffei Kunststofftechnik Gmbh | Method of producing coated molded plastic articles, and injection mold |
| KR100294533B1 (en) * | 1999-04-20 | 2001-07-04 | 전성도 | Forming method and device of wallboard for N.V.H of car which has foaming layer |
| JP2002192606A (en) * | 2000-12-27 | 2002-07-10 | Yoshino Kogyosho Co Ltd | Blow molding method and device therefor |
| JP2013146956A (en) * | 2012-01-20 | 2013-08-01 | Toyoda Gosei Co Ltd | Method for manufacturing decorative molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2951698B2 (en) | 1999-09-20 |
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