JPH09314598A - Apparatus and method for molding multilayer molding - Google Patents
Apparatus and method for molding multilayer moldingInfo
- Publication number
- JPH09314598A JPH09314598A JP15494196A JP15494196A JPH09314598A JP H09314598 A JPH09314598 A JP H09314598A JP 15494196 A JP15494196 A JP 15494196A JP 15494196 A JP15494196 A JP 15494196A JP H09314598 A JPH09314598 A JP H09314598A
- Authority
- JP
- Japan
- Prior art keywords
- skin material
- molding
- mold
- groove
- protrusion
- 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
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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/20—Making multilayered or multicoloured articles
- B29C43/203—Making multilayered articles
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
- B29C43/183—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the preformed layer being a lining, e.g. shaped in the mould before compression moulding, or a preformed shell adapted to the shape of the mould
-
- 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
- B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14221—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 the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
-
- 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
- B29C2045/14901—Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3014—Door linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3041—Trim panels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of 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、自動車の内装材等
に施用されて良好な多層成形品の成形装置及び成形方法
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding apparatus and a molding method for a multi-layer molded article which is suitable for use as an interior material for automobiles.
【0002】[0002]
【従来の技術】自動車の内装材としてのドアトリムに
は、図13に示すように、表皮材3が樹脂成形体2の一
部を被って、見切り線5が形成された多層成形品1が用
いられている。この多層成形品1は図14に示すような
成形装置10によって成形されている。2. Description of the Related Art For a door trim as an interior material of an automobile, a multilayer molded article 1 in which a skin material 3 covers a part of a resin molded body 2 and a parting line 5 is formed is used as shown in FIG. Has been. This multilayer molded product 1 is molded by a molding device 10 as shown in FIG.
【0003】即ち、図14に示す成形装置10におい
て、7は上型、9は下型である。前記上型7は上プラテ
ン6に、下型9は下プラテン8にそれぞれ固定されてい
る。前記上型7の成形面7aには表皮材3の見切り線5
に相当する位置に小突起壁11が設けられてる。また、
前記下型9の成形面9aには、上型7の小突起壁11に
対応する位置に、凹溝12を有する上下動可能なスライ
ド型14が設けられていると共に、前記スライド型14
からやや離れた位置に上下可能なピン13が設けられて
いる。That is, in the molding apparatus 10 shown in FIG. 14, 7 is an upper mold and 9 is a lower mold. The upper mold 7 is fixed to the upper platen 6, and the lower mold 9 is fixed to the lower platen 8. The parting line 5 of the skin material 3 is formed on the molding surface 7a of the upper mold 7.
The small projection wall 11 is provided at a position corresponding to. Also,
On the molding surface 9a of the lower mold 9, a slide mold 14 having a concave groove 12 is provided at a position corresponding to the small projection wall 11 of the upper mold 7, and the slide mold 14 is provided.
A pin 13 that can be moved up and down is provided at a position slightly away from.
【0004】多層成形品1の成形に際しては、図14
(a)に示すように、先ず所定寸法に裁断した表皮材3
を下型9の成形面9a上に載置する。この場合に、前記
表皮材3の表面が上型7側に向くように配置する。When molding the multilayer molded article 1, FIG.
As shown in (a), the skin material 3 is first cut into a predetermined size.
Is placed on the molding surface 9a of the lower mold 9. In this case, the surface of the skin material 3 is arranged so as to face the upper die 7 side.
【0005】次いで、前記上型7を下降させて、上型7
及び下型9のそれぞれの成形面7a、9a間の隙間が製
品の厚さよりも大きい所定の位置で一旦停止させる。こ
の停止位置で図14(b)に示すように、ピン13及び
スライド型14を上方向に移動させながら表皮材3を持
上げて、上型7の成形面7aに軽く接触させる。次に、
この状態で前記下型9内に設けられた樹脂通路(図示せ
ず)を通じて、下型9と表皮材3との間(表皮材3の裏
面側)に溶融樹脂4を射出する。射出開始から0.5秒
後にピン13を図14(a)に示す元の位置まで下降さ
せ、同じく1.0秒後にスライド型14を同じく元の位
置まで下降させる。Next, the upper die 7 is lowered to move the upper die 7
And the lower mold 9 is temporarily stopped at a predetermined position where the gap between the molding surfaces 7a and 9a is larger than the product thickness. At this stop position, as shown in FIG. 14 (b), the skin material 3 is lifted while moving the pin 13 and the slide mold 14 in the upward direction to lightly contact the molding surface 7 a of the upper mold 7. next,
In this state, the molten resin 4 is injected between the lower mold 9 and the skin material 3 (the back surface side of the skin material 3) through a resin passage (not shown) provided in the lower mold 9. 0.5 seconds after the start of injection, the pin 13 is lowered to the original position shown in FIG. 14A, and the slide die 14 is also lowered to the original position after 1.0 second.
【0006】次に、図14(c)に示すように、再度上
型7を下降させる。これにより、溶融樹脂4は表皮材3
を介して上型7及び下型9によって押圧されながら上型
7及び下型9の成形面7a、9a間に拡がり、表皮材3
と樹脂成形体2とが一体となって多層成形品1の賦形が
完了する。Next, as shown in FIG. 14 (c), the upper mold 7 is lowered again. As a result, the molten resin 4 becomes the skin material 3
Is spread between the molding surfaces 7a and 9a of the upper mold 7 and the lower mold 9 while being pressed by the upper mold 7 and the lower mold 9 through the skin material 3
And the resin molded body 2 are integrated to complete the shaping of the multilayer molded product 1.
【0007】その後、上型7を上昇させて、上型7及び
下型9間から多層成形品1を取り出す。After that, the upper die 7 is raised and the multilayer molded article 1 is taken out from between the upper die 7 and the lower die 9.
【0008】[0008]
【発明が解決しようとする課題】しかしながら前記従来
の成形装置10にあっては、下型9と表皮材3との間に
溶融樹脂4を射出する場合に、表皮材3の位置ずれを確
実に防止するために、ピン13やスライド型14等を用
いて表皮材3を持上げて上型7成形面7aに軽く接触さ
せる機構を備えている。したがって、成形装置10が複
雑かつ高価になり、延いては、多層成形品の価格が上昇
する虞がある。However, in the conventional molding apparatus 10 described above, when the molten resin 4 is injected between the lower mold 9 and the skin material 3, the displacement of the skin material 3 is surely ensured. In order to prevent this, a mechanism is provided that lifts the skin material 3 by using the pin 13, the slide mold 14 or the like to lightly contact the molding surface 7a of the upper mold 7. Therefore, the molding apparatus 10 becomes complicated and expensive, and the price of the multilayer molded article may increase.
【0009】また、ピン13やスライド型14を上昇さ
せて表皮材3を上型7の成形面7aに接触させるための
時間が必要となるので、成形に要する時間が長くなる。
このため、製品コストの上昇を招く虞がある。Further, since it takes time to raise the pin 13 and the slide mold 14 to bring the skin material 3 into contact with the molding surface 7a of the upper mold 7, the time required for molding becomes long.
Therefore, the product cost may increase.
【0010】本発明は前記従来の課題を解決しようとす
るもので、成形装置の構成が簡単で、製品の低廉化を図
ることができる、多層成形品の成形装置及び成形方法を
提供することを目的とする。SUMMARY OF THE INVENTION The present invention is intended to solve the above conventional problems, and provides a molding apparatus and a molding method for a multilayer molded product, which has a simple structure of the molding apparatus and can reduce the cost of the product. To aim.
【0011】[0011]
【課題を解決するための手段】この目的を達成するため
に請求項1記載の発明は、相対移動可能な2つの成形型
の間に表皮材を配置し、前記2つの成形型の何れか一方
の成形型と表皮材との間に溶融樹脂を射出して多層成形
品を得る成形装置において、前記何れか一方の成形型に
は、前記表皮材の周縁部に臨み、該表皮材の周縁部を木
目込み処理する木目込み溝を設け、In order to achieve this object, the invention according to claim 1 arranges a skin material between two molds which are relatively movable, and one of the two molds is provided. In a molding apparatus for injecting a molten resin between a molding die and a skin material to obtain a multilayer molded article, one of the molding dies faces a peripheral edge portion of the skin material and a peripheral edge portion of the skin material. Is provided with a wood grain groove for processing
【0012】前記何れか他方の成形型には、前記一方の
成形型の木目込み溝内に挿入されることによって表皮材
の周縁部を木目込み処理可能な突起を設けてなり、前記
2つの成形型が所定距離だけ相対接近した時に、前記突
起の先端部と木目込み溝の開口縁部とによって、前記表
皮材の周縁部を保持するようにした構成にしてある。[0012] One of the other molding dies is provided with a protrusion capable of processing the peripheral edge of the skin material to be wood-grained by being inserted into the wood-grooving groove of the one molding die. When relatively approaching by a predetermined distance, the peripheral edge portion of the skin material is held by the tip portion of the protrusion and the opening edge portion of the wood grain groove.
【0013】また、請求項2記載の発明は、請求項1記
載の構成の突起の突出高さを、所定位置で高く形成する
と共に、木目込み溝の深さを突起の高さに対応して所定
位置で深く形成した構成にしてある。According to a second aspect of the present invention, the protrusion height of the protrusion according to the first aspect is formed to be high at a predetermined position, and the depth of the wood-groove groove is predetermined according to the height of the protrusion. It is deeply formed at the position.
【0014】また、請求項3記載の発明は、請求項1記
載の構成の一方の成形型に形成した木目込み溝の開口縁
部の所定位置に、前記他方の成形型に向かって延びて、
表皮材に覆われる側に突条を形成した構成にしてある。According to a third aspect of the present invention, at least one of the molding dies having the structure according to the first aspect extends toward the other molding die at a predetermined position of the opening edge portion of the wood grain groove.
The ridge is formed on the side covered with the skin material.
【0015】また、請求項4記載の発明は、請求項1記
載の構成の木目込み溝の側面のうち、表皮材で覆われる
側の側壁に、前記表皮材を保持する突条を形成した構成
にしてある。Further, the invention according to claim 4 is such that, on the side wall of the wood grain groove of the structure according to claim 1 on the side covered with the skin material, a ridge for holding the skin material is formed. There is.
【0016】また、請求項5記載の発明は、相対移動可
能な2つの成形型の間に表皮材を配置し、前記2つの成
形型の何れか一方の成形型と表皮材との間に溶融樹脂を
射出して多層成形品を得る成形方法において、前記表皮
材の周縁部に臨み、該表皮材の周縁部を木目込み処理す
る木目込み溝を有する一方の成形型と、該一方の成形型
の木目込み溝内に挿入されることによって表皮材の周縁
部を木目込み処理可能な突起を有する他方の成形型との
間に、表皮材を配置する配置工程と、該配置工程の後、
前記2つの成形型を所定距離だけ相対接近させて、一方
の成形型の木目込み溝内に他方の成形型の突起を挿入
し、前記突起の先端部と木目込み溝の開口縁部とによっ
て、前記表皮材の周縁部を保持する保持工程と、該保持
工程の後、前記一方の成形型と表皮材との間に溶融樹脂
を射出する射出工程と、該射出工程と同時または射出工
程の後に、前記2つの成形型を更に相対接近させて表皮
材及び溶融樹脂を押圧する成型工程と、から構成してあ
る。According to a fifth aspect of the present invention, a skin material is arranged between two molds that can move relative to each other, and the skin material is melted between one of the two molds and the skin material. In a molding method of injecting a resin to obtain a multi-layer molded article, one mold having a wood grain groove facing the peripheral edge of the skin material and subjecting the peripheral edge of the skin material to a wood grain, and the one wood grain of the mold Between the other molding die having a projection capable of wood graining the peripheral edge portion of the skin material by being inserted into the groove, a disposing step of disposing the skin material, and after the disposing step,
The two molds are brought relatively close to each other by a predetermined distance, and the protrusion of the other mold is inserted into the wood grain groove of the one mold, and the tip of the protrusion and the opening edge of the wood grain groove form the skin. A holding step of holding the peripheral edge of the material, an injection step of injecting a molten resin between the one mold and the skin material after the holding step, and a step of performing the injection step simultaneously with or after the injection step. A molding step of bringing the two molds closer to each other and pressing the skin material and the molten resin.
【0017】本発明において、表皮材としては、クロ
ス、PVCシート、発泡PVCシート、ポリエチレンフ
ォーム付PVCシートなどが用いられる。In the present invention, a cloth, a PVC sheet, a foamed PVC sheet, a polyethylene foamed PVC sheet or the like is used as the skin material.
【0018】具体的には、クロスは、クロスに密度が
0.04〜0.3g/m3 のウレタンまたは圧縮ウレタ
ンをラミネートしたものを使用し、PVCシートは、メ
リヤス付きで、この内、PVCの厚みが0.5〜1.0
mm、メリヤス部分が70〜200g/m3 のものを使
用し、発泡PVCシートは、PVC層の厚みが0.4〜
0.8mm、発泡層の厚みが、1〜4mmで、発泡倍率
2〜8倍のものを使用し、また、ポリエチレンフォーム
付PVCシートは、PVC層の厚みが0.4〜0.8m
mで、ポリエチレンフォーム層が15〜25倍発泡の厚
み2〜5mmのものを使用している。Specifically, the cloth is a cloth laminated with urethane or compressed urethane having a density of 0.04 to 0.3 g / m 3 , and the PVC sheet has a knitted fabric. Thickness is 0.5 to 1.0
mm, the knitted portion is 70 to 200 g / m 3 , and the foamed PVC sheet has a PVC layer thickness of 0.4 to
The thickness of the foam layer is 0.8 mm, the thickness of the foam layer is 1 to 4 mm, and the expansion ratio is 2 to 8 times. The PVC sheet with polyethylene foam has a PVC layer thickness of 0.4 to 0.8 m.
m, the polyethylene foam layer has a thickness of 2 to 5 mm with a foaming ratio of 15 to 25 times.
【0019】また、前記一方の成形型に形成した木目込
み溝の寸法、及び他方の成形型に形成されて木目込み溝
に挿入可能な突起の寸法は、これら2つの成形型が所定
距離だけ接近した時に、木目込み溝の開口周縁部と突起
の先端部とによって、表皮材の周縁部を保持可能な寸法
が選択される。Further, the size of the wood grain groove formed on the one mold and the size of the projection formed on the other mold and insertable into the wood groove are such that when these two molds approach each other by a predetermined distance. A size capable of holding the peripheral edge portion of the skin material is selected by the peripheral edge portion of the opening of the wood grain groove and the tip portion of the protrusion.
【0020】ここで、表皮部材の周縁部を保持するとい
うのは、表皮材の周縁部のやや内周寄りが木目込み溝の
開口周縁部に接し、表皮材の周縁部のやや外周寄りが突
起の先端によって木目込み溝内に挿入された状態であ
る。即ち、前記表皮材の周縁部は、木目込み溝の開口周
縁部に接した部分から折れ曲がり、外周端が木目込み溝
内に挿入された状態であり、表皮材がそれ自身の弾性復
元力によって木目込み溝の開口周縁部と突起の先端部と
に接することにより、保持されるのである。Here, holding the peripheral edge of the skin member means that the inner peripheral edge of the outer peripheral material is slightly in contact with the opening peripheral edge of the wood grain groove, and the outer peripheral edge of the outer peripheral material is slightly protruding. It is in a state of being inserted into the wood grain groove by the tip. That is, the peripheral edge portion of the skin material is bent from a portion in contact with the opening peripheral edge portion of the wood grain groove, the outer peripheral edge is inserted in the wood grain groove, the skin material of the wood grain groove by its own elastic restoring force. It is held by contacting the peripheral edge of the opening and the tip of the protrusion.
【0021】その後、前記木目込み溝の開口周縁と突起
の先端とによって前記表皮材の周縁部が2つの成形型に
保持された状態で、一方の成形型と表皮材との間に溶融
樹脂を射出する。Thereafter, while the peripheral edge of the skin material is held by the two molding dies by the peripheral edge of the opening of the wood grooving groove and the tip of the projection, a molten resin is injected between one of the molding dies and the skin material. To do.
【0022】前記溶融樹脂を射出すると同時または射出
後に、成形型によって加圧成形され、多層成形品が得ら
れる。Simultaneously with or after the injection of the molten resin, it is pressure-molded by a molding die to obtain a multilayer molded article.
【0023】したがって、溶融樹脂を射出するときに、
前記表皮材が2つの成形型で保持されていることによっ
て、表皮材が成形型に対して位置ずれを生じることが有
利に防止される。この場合に、表皮材を保持するために
スライド型等を必要としないから、成形装置の構成が簡
素化されると共に、スライド型等を作動させる時間を必
要とせず、製造工数の短縮化を図ることができるから、
製品コストの低廉化を有利に達成できる。Therefore, when injecting the molten resin,
Since the skin material is held by the two molds, the skin material is advantageously prevented from being displaced with respect to the mold. In this case, since a slide mold or the like is not required to hold the skin material, the structure of the molding apparatus is simplified and the time for operating the slide mold or the like is not required, and the number of manufacturing steps is shortened. Because you can
Product cost reduction can be advantageously achieved.
【0024】また、前記突起の高さを所定位置において
高くすることにより、2つの成形型の相対接近距離が大
きい位置で表皮材の周縁部を保持することができるか
ら、表皮材と成形型との間の間隔を大きくして、溶融樹
脂を射出するときにこの高温の溶融樹脂で表皮材が劣化
することを未然に防止することができる。Further, by increasing the height of the protrusion at a predetermined position, the peripheral edge portion of the skin material can be held at a position where the relative distance between the two molding dies is large. It is possible to prevent the skin material from being deteriorated by the high-temperature molten resin when the molten resin is injected by increasing the interval between them.
【0025】また、前記木目込み溝の開口縁部に突条を
設けることにより、木目込み溝内に挿入される表皮材の
周縁部の長さを短くすることが可能となり、木目込み溝
の深さを浅くすることができるから、この木目込み溝に
よって多層成形品の裏面に生ずる突出部の寸法を短くし
て、他部材との干渉を有利に防止できる。Further, by providing a protrusion on the opening edge of the wood grain groove, it is possible to shorten the length of the peripheral edge portion of the skin material inserted into the wood grain groove, and to reduce the depth of the wood grain groove. Therefore, it is possible to shorten the dimension of the protruding portion generated on the back surface of the multilayer molded article by the wood grain groove and advantageously prevent interference with other members.
【0026】また、前記木目込み溝の側面に表皮材を保
持する突条を形成することにより、突起と木目込み溝の
側面との間の寸法を実質的に小さく(狭く)することが
できるから、厚さの異なる表皮材を適用するのに、至便
となる。Further, by forming a ridge for holding the skin material on the side surface of the wood grain groove, the dimension between the protrusion and the side surface of the wood grain groove can be made substantially smaller (narrower). It is convenient to apply different skin materials.
【0027】[0027]
【発明の実施の形態】以下、本発明の実施の形態を、自
動車のドアトリムの多層成形品の成形装置及び成形方法
に適用した態様として、図面に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described with reference to the drawings as an embodiment in which the present invention is applied to a molding apparatus and a molding method for a multilayer molded product of a door trim of an automobile.
【0028】図13は自動車のドアトリムの斜視図であ
る。このドアトリムは樹脂成形体2と表皮材3とからな
る多層成形品1であって、ドアトリムの表面には表皮材
3が樹脂成形体2を被って、見切り線5が形成されてお
り、この見切り線5上で表皮材3が熱可塑性樹脂成形体
2に木目込み処理されている。FIG. 13 is a perspective view of a vehicle door trim. This door trim is a multi-layer molded product 1 composed of a resin molded body 2 and a skin material 3. The skin material 3 covers the resin molded body 2 to form a parting line 5 on the surface of the door trim. On the line 5, the skin material 3 is subjected to the graining treatment on the thermoplastic resin molded body 2.
【0029】図1は前記多層成形品1を成形する成形装
置10の断面図であり、図2は図1の要部を拡大して示
す断面図である。図に示すように、成形装置10は相対
移動可能な2つの成形型、即ち上型7及び下型9を有し
ており、これら上型7及び下型9のそれぞれの対向面に
は成形面7a及び成形面9aを形成してある。前記上型
7と下型9との間には表皮材3が配置可能で、この実施
の形態において表皮材3は下型9の上に配置される。FIG. 1 is a sectional view of a molding apparatus 10 for molding the multi-layer molded product 1, and FIG. 2 is an enlarged sectional view showing a main part of FIG. As shown in the figure, the molding apparatus 10 has two molds which are relatively movable, namely, an upper mold 7 and a lower mold 9, and molding surfaces are provided on the respective facing surfaces of the upper mold 7 and the lower mold 9. 7a and a molding surface 9a are formed. The skin material 3 can be arranged between the upper mold 7 and the lower mold 9, and in this embodiment, the skin material 3 is arranged on the lower mold 9.
【0030】前記下型9には、表皮材3の周縁部3aに
臨み、この表皮材3の周縁部3aを木目込み処理する木
目込み溝17が形成してあり、この木目込み溝17は断
面が矩形状で、均一の溝幅及び均一の深さを以て形成し
てある。この木目込み溝17を形成した部分の成形面9
aには、表皮材3の位置決めを容易ならしめるための段
差Sが形成してある。また、前記下型9の成形面9aの
略中央部分には溶融樹脂を射出するための通路6が開口
している。The lower mold 9 is formed with a wood grain groove 17 which faces the peripheral edge portion 3a of the skin material 3 and performs a wood graining treatment on the peripheral edge portion 3a of the skin material 3. The wood grain groove 17 has a rectangular cross section. Then, it is formed with a uniform groove width and a uniform depth. Forming surface 9 of the portion where the wood grain groove 17 is formed
A step S for facilitating the positioning of the skin material 3 is formed in a. Further, a passage 6 for injecting the molten resin is opened at a substantially central portion of the molding surface 9a of the lower mold 9.
【0031】前記上型7の成形面7aには、前記下型9
の木目込み溝17内に挿入されることによって表皮材3
の周縁部3aを木目込み処理可能な突起15を設けてあ
る。前記突起15は、図13に示す見切り線5に相当す
る位置に、略均一な突出高さを以て形成してある。On the molding surface 7a of the upper mold 7, the lower mold 9 is formed.
The skin material 3 is inserted into the groove 17 of the wood.
The peripheral edge portion 3a is provided with a projection 15 capable of grain processing. The protrusion 15 is formed with a substantially uniform protrusion height at a position corresponding to the parting line 5 shown in FIG.
【0032】ここで、前記上型7に形成した突起15の
突出高さhは、上型7が下降して上型7及び下型9が所
定距離だけ相対接近したとき(溶融樹脂を射出する位置
に達したとき)、図2(a)に示すように、上型7の突
起15の先端部16と下型9の木目込み溝17の開口縁
部18とによって、表皮材3の周縁部3aを保持するこ
とが可能な高さに設定してある。また、前記下型9に成
形した木目込み溝17の深さ寸法及び幅寸法は、表皮材
3の裏面側即ち表皮材3と下型9との間に溶融樹脂が射
出され、この溶融樹脂が上型7及び下型9によって押圧
・成形された後に、図2(b)に示すように表皮材3が
樹脂成形体2に木目込み処理される大きさに設定されて
いる。Here, the protrusion height h of the projection 15 formed on the upper die 7 is such that when the upper die 7 descends and the upper die 7 and the lower die 9 relatively approach each other by a predetermined distance (the molten resin is injected). 2 (a), the peripheral edge portion 3a of the skin material 3 is formed by the tip end portion 16 of the protrusion 15 of the upper die 7 and the opening edge portion 18 of the wood grain groove 17 of the lower die 9, as shown in FIG. 2 (a). Is set to a height that can hold. The depth dimension and width dimension of the wood grain groove 17 formed in the lower mold 9 is such that the molten resin is injected on the back surface side of the skin material 3, that is, between the skin material 3 and the lower mold 9, After being pressed and molded by the mold 7 and the lower mold 9, as shown in FIG. 2B, the skin material 3 is set to a size such that the resin molding 2 is subjected to wood grain processing.
【0033】具体的には、多層成形品1の板厚をt、溶
融樹脂の射出位置での上型7及び下型9間の隙間(型ク
リアランス)をcとすると、この型クリアランスcは表
皮材の種類により、0<c≦15mmの範囲で調整さ
れ、好ましくは、t=2.5mmのとき、c=2.5m
mの寸法が選択される。また溶融樹脂を押圧成形した後
の上型7の成形面7aから木目込み溝17の底部までの
寸法h´は、h´>h≧t+cの関係となる。Specifically, when the plate thickness of the multilayer molded product 1 is t and the gap (mold clearance) between the upper mold 7 and the lower mold 9 at the molten resin injection position is c, this mold clearance c is the skin. Depending on the type of material, it is adjusted within the range of 0 <c ≦ 15 mm, preferably when t = 2.5 mm, c = 2.5 m
A dimension of m is selected. The dimension h'from the molding surface 7a of the upper mold 7 after the molten resin is press-molded to the bottom of the wood grain groove 17 has a relationship of h '> h≥t + c.
【0034】次に、前記構成の成形装置10を用いた多
層成形品1の成形方法について説明する。前記多層成形
品1の成形は、図3に示す成形工程のタイムチャートで
現されるように、開型、上型下降開始、上型一時
停止、〜溶融樹脂射出、上型再下降開始、型
閉、〜冷却・固化、上型上昇開始、上型上昇完
了の工程に従って実行される。Next, a method of molding the multi-layer molded article 1 using the molding apparatus 10 having the above-mentioned structure will be described. As shown in the time chart of the molding process shown in FIG. 3, the multi-layer molded product 1 is molded by opening the mold, starting the lowering of the upper mold, temporarily stopping the upper mold, injecting molten resin, starting the lowering of the upper mold, and molding. It is executed according to the steps of closing, cooling / solidifying, starting to lift the upper mold, and completion of lifting the upper mold.
【0035】先ず、前記開型の位置で、所定の寸法に
裁断した表皮材3を下型9の成形面9a上に載置する。
この場合に、前記表皮材3はその表面側が上型7側に向
くように配置され、下型9の成形面9aに設けた段差S
によって周縁部3aが木目込み溝17に臨むように配置
される(配置工程)。First, at the open mold position, the skin material 3 cut into a predetermined size is placed on the molding surface 9a of the lower mold 9.
In this case, the skin material 3 is arranged so that its surface side faces the upper die 7 side, and the step S provided on the molding surface 9a of the lower die 9 is arranged.
Thus, the peripheral edge portion 3a is arranged so as to face the wood grain groove 17 (arrangement step).
【0036】次いで、前記上型下降開始位置から、上
型7を下降させ、所定位置即ち型クリアランスがC寸法
となった上型一時停止位置で上型7を一旦停止させ
る。Next, the upper mold 7 is lowered from the upper mold lowering start position, and the upper mold 7 is temporarily stopped at a predetermined position, that is, an upper mold temporary stop position where the mold clearance is C dimension.
【0037】前記上型一時停止位置で、上型7に形成
した突起15が下型9に形成した木目込み溝17内に挿
入され、前記突起15の端部16と木目込み溝17の開
口周縁18とによって、表皮材3の周縁部3aを保持さ
れる(保持工程、図2(a)参照)。At the upper die temporary stop position, the projection 15 formed on the upper die 7 is inserted into the wood grain groove 17 formed on the lower die 9, and the end 16 of the projection 15 and the opening peripheral edge 18 of the wood grain groove 17 are formed. Thus, the peripheral edge portion 3a of the skin material 3 is held (holding step, see FIG. 2A).
【0038】前記表皮材3の周縁部3aが保持された
後、通路6を通じて、表皮材3と下型9との間に溶融樹
脂を射出する(射出工程)。After the peripheral portion 3a of the skin material 3 is held, the molten resin is injected between the skin material 3 and the lower mold 9 through the passage 6 (injection step).
【0039】前記射出工程の後、上型再下降開始位置
から、上型7を型クリアランスが零となる閉型の位置
まで再び下降させ、表皮材3及び溶融樹脂を押圧する
(成型工程、図2(b)参照)。この型クリアランスが
零の状態は上型上昇開始まで持続され、射出した溶融
樹脂が固化及び冷却される。After the injection step, the upper mold 7 is lowered again from the upper mold re-lowering start position to the closed mold position where the mold clearance becomes zero, and the skin material 3 and the molten resin are pressed (molding process, figure 2 (b)). The state in which the mold clearance is zero is maintained until the upper mold starts to rise, and the injected molten resin is solidified and cooled.
【0040】前記閉型の位置から所定時間経過後、上
型上昇開始位置から上型7が上昇し始め、上型上昇完
了位置で開型の状態に戻る。この開型の状態で多
層成形品1が上型7及び下型9内から取り出される。After a lapse of a predetermined time from the closed mold position, the upper mold 7 starts to rise from the upper mold rising start position and returns to the open mold state at the upper mold lifting completion position. In this open mold state, the multilayer molded product 1 is taken out from the upper mold 7 and the lower mold 9.
【0041】なお、溶融樹脂の射出は、必ずしも上型7
の下降動作を一旦停止させて行う必要はなく、図4に示
すように、上型7が下型9に所定距離(型クリアランス
C)まで接近する直前から上型7の下降速度を減じて、
減速状態において溶融樹脂を射出して押圧成形するよう
にしてもよい。It should be noted that the injection of the molten resin does not always take place in the upper mold 7.
It is not necessary to temporarily stop the lowering operation of the upper mold 7, and as shown in FIG. 4, the lowering speed of the upper mold 7 is reduced from immediately before the upper mold 7 approaches the lower mold 9 to a predetermined distance (mold clearance C).
The molten resin may be injected and pressure-molded in the decelerated state.
【0042】したがって、溶融樹脂を射出するときに、
前記表皮材3が上型7及び下型9の2つの成形型で保持
されていることによって、表皮材3が成形型7,9に対
してずれを生じることが有利に防止される。この場合
に、表皮材3を保持するためにスライド型等を必要とし
ないから、成形装置10の構成が簡素化されると共に、
スライド型等を作動する時間を必要とせず、製造工数の
短縮化を図ることができるから、製品コストの低廉化を
有利に達成できる。Therefore, when injecting the molten resin,
Since the skin material 3 is held by the two molding dies, the upper die 7 and the lower die 9, the skin material 3 is advantageously prevented from being displaced from the molding dies 7 and 9. In this case, since a slide mold or the like is not required to hold the skin material 3, the structure of the molding device 10 is simplified and
Since it is possible to shorten the number of manufacturing steps without requiring time for operating the slide mold or the like, it is possible to advantageously reduce the product cost.
【0043】なお、本発明によれば、木目込み溝が直線
状の多層成形品に限らず、図5に示すように、表皮材3
が樹脂成形体2の略中央部分に島状に配設され、木目込
み溝が連続した曲線となる製品にも採用可能である。According to the present invention, the skin material 3 is not limited to a multi-layer molded product having a straight grain groove, as shown in FIG.
Can be also applied to a product in which the resin molding 2 is arranged in an approximately central portion in an island shape and the wood grain groove has a continuous curve.
【0044】図6及び図7は本発明の別の実施の形態を
示す図面で、この実施の形態が前記実施の形態と変わる
ところは、前記上型7に形成する突起15の突出高さ
を、所定位置において高く形成して、背高突起19を形
成すると共に、木目込み溝17の深さを背高突起19に
対応して所定位置において深く形成して、深溝21を形
成した点である。FIGS. 6 and 7 are views showing another embodiment of the present invention. The difference between this embodiment and the above embodiment is that the protrusion height of the projection 15 formed on the upper die 7 is different. That is, the height projection 19 is formed high at a predetermined position, and the depth of the wood grain groove 17 is formed deep at a predetermined position corresponding to the height projection 19 to form a deep groove 21.
【0045】斯く構成することにより、背高突起19に
よって、上型7と下型9との相対接近距離、即ち型クリ
アランスが広い位置で表皮材3の周縁部3aを保持する
ことができる。これによって、前記実施の形態で述べた
と同様の効果が得られるのに加え、表皮材3と下型9と
の間の間隔を十分に大きくして、即ち溶融樹脂の通路6
と表皮材3との間の間隔を大きくすることができる。し
たがって、溶融樹脂が表皮材3に達するまでの時間が長
くなることによって冷却されるから、溶融樹脂を射出す
るときにこの高温の溶融樹脂で表皮材3が劣化すること
を未然に防止することができる。With this structure, the tall protrusions 19 can hold the peripheral edge portion 3a of the skin material 3 at a position where the relative distance between the upper mold 7 and the lower mold 9, that is, the mold clearance is wide. As a result, the same effect as that described in the above-described embodiment is obtained, and in addition, the distance between the skin material 3 and the lower mold 9 is sufficiently increased, that is, the molten resin passage 6 is formed.
It is possible to increase the gap between the skin material 3 and the skin material 3. Therefore, since it takes time for the molten resin to reach the skin material 3 to be cooled, it is possible to prevent the skin material 3 from being deteriorated by the high temperature molten resin when the molten resin is injected. it can.
【0046】この場合に、木目込み溝17の一部に深溝
21が形成してあることによって、成型工程後の製品の
裏側に、深溝21による突出部が形成されることにな
り、この突出部が相手部材、例えばインナーパネルと干
渉することが考えられるが、これに対しては、背高突起
19及び深溝21を、干渉が回避可能な所定位置に形成
することによって容易に解決できる。In this case, since the deep groove 21 is formed in a part of the grained groove 17, a protruding portion due to the deep groove 21 is formed on the back side of the product after the molding process, and this protruding portion is formed. Interference with a mating member, such as an inner panel, can be considered, but this can be easily solved by forming the tall protrusion 19 and the deep groove 21 at predetermined positions where interference can be avoided.
【0047】なお、背高突起19によって、型クリアラ
ンスの大きい位置で表皮材3の周縁部3aを保持するこ
とが可能となるけれども、この表皮材3を保持した状態
で上型7を更に下降させ、溶融樹脂を射出することは任
意であるから、結局、背高突起19を有する単一の成形
型をもって、耐熱性の弱い表皮材に限らず、各種表皮材
を用いての成形作業を実行することが可能である。Although it is possible to hold the peripheral edge portion 3a of the skin material 3 at the position where the mold clearance is large by the tall protrusions 19, the upper mold 7 is further lowered while the skin material 3 is held. Since it is arbitrary to inject the molten resin, after all, with a single molding die having the tall protrusions 19, not only the skin material having low heat resistance but also various skin materials are used for the molding work. It is possible.
【0048】図8及び図9は、本発明の更に別の実施の
形態を示す図面で、この実施の形態が前記実施の形態と
変わるところは、前記下型9に形成した木目込み溝17
の開口縁部18の所定位置に、上型7側に向かって延び
る突条22を形成した点である。即ち、この突条22
は、木目込み溝17の、表皮材3で覆われる側の開口縁
部18に形成しているのである。8 and 9 are views showing still another embodiment of the present invention. The difference between this embodiment and the above embodiment is that a wood grain groove 17 formed in the lower mold 9 is shown.
This is the point at which a ridge 22 extending toward the upper mold 7 side is formed at a predetermined position of the opening edge portion 18. That is, this ridge 22
Is formed in the opening edge portion 18 of the wood grain groove 17 on the side covered with the skin material 3.
【0049】斯く構成することにより、木目込み溝17
内に挿入される表皮材3の周縁部3aの長さを短くする
ことが可能となから、木目込み溝17の深さを浅くする
ことができる。したがって、前記木目込み溝17によっ
て多層成形品1の裏側面に形成される突出部の寸法を短
くすることができ、この突出部がインナーパネル等の他
部材と干渉することを有利に防止できる。With this construction, the wood grain groove 17
Since it is possible to shorten the length of the peripheral edge portion 3a of the skin material 3 inserted therein, it is possible to make the depth of the wood grain groove 17 shallow. Therefore, the size of the projection formed on the back side surface of the multilayer molded article 1 can be shortened by the wood grain groove 17, and the projection can be advantageously prevented from interfering with other members such as the inner panel.
【0050】なお、前記突条22は、図8に示すように
木目込み溝17の開口縁部18の一部分に形成するのみ
ならず、開口縁部18の全域に設けることも可能であ
る。The protrusion 22 may be formed not only in a part of the opening edge portion 18 of the wood grain groove 17 as shown in FIG. 8 but also in the entire area of the opening edge portion 18.
【0051】図10及び図11は、本発明の更に別の実
施の形態を示す図面で、この実施の形態が前記実施の形
態と変わるところは、前記下型9に形成した木目込み溝
17の表皮材3で覆われる側の側壁に、表皮材3を保持
する突条23を形成した点である。10 and 11 are views showing still another embodiment of the present invention. The difference between this embodiment and the embodiment is that the skin of the wood grain groove 17 formed in the lower mold 9 is shown. The point is that a ridge 23 for holding the skin material 3 is formed on the side wall covered with the material 3.
【0052】斯く構成することにより、突起15と木目
込み溝17の側面との間の寸法を実質的に小さくするこ
とができるから、特に厚さの薄い表皮材3を適用するに
あたって、所定の保持力をもって保持することができ
る。With this structure, the dimension between the projection 15 and the side surface of the wood grain groove 17 can be substantially reduced. Therefore, when applying the skin material 3 having a particularly small thickness, a predetermined holding force is applied. Can be held.
【0053】なお、厚さの薄い表皮材を適用する場合
に、図12に示すように、上型7に形成する突起15
を、木目込み溝17の幅方向に偏倚させ、表皮材3を配
置した側の木目込み溝の側面から突起までの寸法aを反
対側の寸法bより狭くするようにしてもよい。When a thin skin material is applied, as shown in FIG. 12, the protrusion 15 formed on the upper die 7
May be biased in the width direction of the wood grain groove 17 so that the dimension a from the side surface of the wood grain groove on which the skin material 3 is arranged to the protrusion is narrower than the dimension b on the opposite side.
【0054】[0054]
【発明の効果】以上詳細に説明したように本発明によれ
ば、溶融樹脂を射出するときに、表皮材が2つの成形型
で保持されていることによって、表皮材が成形型に対し
てずれを生じることが有利に防止される。この場合に、
表皮材を保持するためにスライド型等を必要としないか
ら、成形装置の構成が簡素化されると共に、スライド型
等を作動する時間を必要とせず、製造工数の短縮化を図
ることができるから、製品コストの低廉化を有利に達成
できる。As described in detail above, according to the present invention, when the molten resin is injected, the skin material is held by the two molds, so that the skin material is displaced from the mold. Is advantageously prevented. In this case,
Since a slide mold or the like is not required to hold the skin material, the structure of the molding device is simplified, and the time for operating the slide mold or the like is not required, and the number of manufacturing steps can be shortened. Therefore, the product cost can be advantageously reduced.
【図1】本発明の実施の形態における多層成形品の成形
装置の断面図である。FIG. 1 is a cross-sectional view of a molding device for a multilayer molded product according to an embodiment of the present invention.
【図2】図1の要部を拡大して示す断面図で、表皮材の
周縁部を保持する保持工程の断面図(a)、成型工程の
断面図(b)である。2 is an enlarged cross-sectional view showing a main part of FIG. 1, and is a cross-sectional view (a) of a holding step of holding a peripheral edge portion of a skin material and a cross-sectional view (b) of a molding step.
【図3】成形工程のタイムチャートである。FIG. 3 is a time chart of a molding process.
【図4】別の実施の形態を示す成形工程のタイムチャー
トである。FIG. 4 is a time chart of a molding process showing another embodiment.
【図5】ドアトリムの斜視図である。FIG. 5 is a perspective view of a door trim.
【図6】本発明の別の実施の形態を示す突起の斜視図で
ある。FIG. 6 is a perspective view of a protrusion showing another embodiment of the present invention.
【図7】図6に示す突起が施用される成形装置の木目込
み溝部分を拡大して示す断面図で、(a)は、突起の長
手方向に沿う断面図、(b)は、断面図(a)のX−X
線断面図である。7A and 7B are enlarged cross-sectional views showing a grain-groove portion of a molding device to which the protrusion shown in FIG. 6 is applied, in which FIG. 7A is a sectional view taken along the longitudinal direction of the protrusion, and FIG. a) XX
It is a line sectional view.
【図8】本発明の更に別の実施の形態を示す、下型の木
目込み溝近傍を示す斜視図である。FIG. 8 is a perspective view showing the vicinity of a lower wood grain groove showing still another embodiment of the present invention.
【図9】図8に示す実施の形態の断面図で、図2と同様
の図面である。9 is a sectional view of the embodiment shown in FIG. 8 and is similar to FIG.
【図10】本発明の更に別の実施の形態を示す、下型の
木目込み溝近傍を示す斜視図である。FIG. 10 is a perspective view showing the vicinity of a lower-grained groove, showing still another embodiment of the present invention.
【図11】図10に示す実施の形態の断面図で、図2
(a)と同様の図面である。11 is a sectional view of the embodiment shown in FIG.
It is a drawing similar to (a).
【図12】本発明の更に別の実施の形態を示す断面図
で、図2(a)と同様の図面である。FIG. 12 is a cross-sectional view showing still another embodiment of the present invention, which is similar to FIG. 2 (a).
【図13】多層成形品を備えたドアトリムの斜視図であ
る。FIG. 13 is a perspective view of a door trim including a multilayer molded product.
【図14】従来の多層成形品の成形装置の断面図で、下
型上に表皮材を配置した状態を示す図面(a)、溶融樹
脂を射出した状態を示す図面(b)、溶融樹脂を押圧し
た状態を示す図面(c)である。FIG. 14 is a cross-sectional view of a conventional molding apparatus for a multilayer molded article, showing a state in which a skin material is arranged on a lower die (a), a state in which a molten resin is injected (b), and a molten resin. It is drawing (c) which shows the state pressed.
1 多層成形品 2 樹脂成形体 3 表皮材 3a 周縁部 7 上型(成形型) 9 下型(成形型) 15 突起 16 先端部 17 木目込み溝 18 開口縁部 DESCRIPTION OF SYMBOLS 1 Multilayer molded product 2 Resin molded body 3 Skin material 3a Peripheral part 7 Upper mold (molding mold) 9 Lower mold (molding mold) 15 Protrusion 16 Tip part 17 Wood grain groove 18 Opening edge part
フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 B29C 43/36 B29C 43/36 B60J 5/00 501 B60J 5/00 501C B60R 13/02 B60R 13/02 B Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI Technical display location B29C 43/36 B29C 43/36 B60J 5/00 501 B60J 5/00 501C B60R 13/02 B60R 13/02 B
Claims (5)
材を配置し、前記2つの成形型の何れか一方の成形型と
表皮材との間に溶融樹脂を射出して多層成形品を得る成
形装置において、前記何れか一方の成形型には、前記表
皮材の周縁部に臨み、該表皮材の周縁部を木目込み処理
する木目込み溝を設け、前記何れか他方の成形型には、
前記一方の成形型の木目込み溝内に挿入されることによ
って表皮材の周縁部を木目込み処理可能な突起を設けて
なり、前記2つの成形型が所定距離だけ相対接近したと
きに、前記木目込み溝の開口縁部と突起の先端部とによ
って、前記表皮材の周縁部を保持するようにしたことを
特徴とする多層成形品の成形装置。1. A multi-layer molded article in which a skin material is arranged between two molds that are relatively movable, and a molten resin is injected between one of the two molding dies and the skin material. In the molding apparatus for obtaining, in any one of the molding dies, facing the peripheral portion of the skin material, a wood grain groove for graining the peripheral portion of the skin material is provided, the other molding die,
When the two molds are relatively close to each other by a predetermined distance, the peripheral edge portion of the skin material is provided with a projection capable of being wood-grained by being inserted into the one of the molds. A molding apparatus for a multilayer molded article, characterized in that the peripheral edge of the skin material is held by the opening edge and the tip of the protrusion.
成されている共に、木目込み溝の深さが突起の高さに対
応して所定位置で深く形成されてなる、請求項1記載の
多層成形品の成形装置。2. The protrusion height of the protrusion is formed to be high at a predetermined position, and the depth of the wood grain groove is formed to be deep at a predetermined position corresponding to the height of the protrusion. Molding equipment for multi-layer molded products.
の開口縁部の所定位置に、前記他方の成形型に向かって
延びて、表皮材に覆われる側に突条を形成してなる、請
求項1記載の多層成形品の成形装置。3. A ridge is formed at a predetermined position of an opening edge portion of a wood grain groove formed in the one molding die, the ridge extending toward the other molding die and on the side covered with the skin material. The apparatus for molding a multilayer molded article according to claim 1.
覆われる側の側壁に、前記表皮材を保持する突条が形成
されてなる、請求項1記載の多層成形品の成形装置。4. The molding device for a multilayer molded article according to claim 1, wherein a protrusion for holding the skin material is formed on a side wall of the side surface of the wood grain groove that is covered with the skin material.
材を配置し、前記2つの成形型の何れか一方の成形型と
表皮材との間に溶融樹脂を射出して多層成形品を得る成
形方法において、前記表皮材の周縁部に臨み、該表皮材
の周縁部を木目込み処理する木目込み溝を有する一方の
成形型と、該一方の成形型の木目込み溝内に挿入される
ことによって表皮材の周縁部を木目込み処理可能な突起
を有する他方の成形型との間に、表皮材を配置する配置
工程と、該配置工程の後、前記2つの成形型を所定距離
だけ相対接近させて、一方の成形型の木目込み溝内に他
方の成形型の突起を挿入し、前記木目込み溝の開口縁部
と突起の先端部とによって、前記表皮材の周縁部を保持
する保持工程と、該保持工程の後、前記一方の成形型と
表皮材との間に溶融樹脂を射出する射出工程と、該射出
工程と同時または射出工程の後に、前記2つの成形型を
更に相対接近させて表皮材及び溶融樹脂を押圧する成型
工程と、からなることを特徴とする多層成形品の成形方
法。5. A multi-layer molded article in which a skin material is arranged between two molds that can move relative to each other, and a molten resin is injected between one of the two molds and the skin material. In the molding method for obtaining, one molding die facing the peripheral portion of the skin material and having a wood grain groove for graining the peripheral portion of the skin material, and by being inserted into the one wood grain groove of the molding die. An arranging step of arranging the skin material between the other peripheral edge of the skin material and the other molding die having a projection capable of graining, and after the arranging step, the two molding dies are brought relatively close to each other by a predetermined distance. A holding step of inserting the protrusion of the other molding die into the grain-groove of one molding die and holding the peripheral edge portion of the skin material by the opening edge of the grain-groove groove and the tip of the protrusion; After the process, melt between the one mold and the skin material A multi-layer comprising: an injection step of injecting a resin, and a molding step of pressing the skin material and the molten resin by bringing the two molds closer to each other simultaneously with or after the injection step. Molding method for molded products.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15494196A JP3123017B2 (en) | 1996-05-27 | 1996-05-27 | Multi-layer molding equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15494196A JP3123017B2 (en) | 1996-05-27 | 1996-05-27 | Multi-layer molding equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09314598A true JPH09314598A (en) | 1997-12-09 |
JP3123017B2 JP3123017B2 (en) | 2001-01-09 |
Family
ID=15595287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15494196A Expired - Fee Related JP3123017B2 (en) | 1996-05-27 | 1996-05-27 | Multi-layer molding equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3123017B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006001138A (en) * | 2004-06-17 | 2006-01-05 | Ube Machinery Corporation Ltd | Method and apparatus for molding resin molding |
JP2007500641A (en) * | 2003-07-31 | 2007-01-18 | ファウレシア イネンラウム システム ゲーエムベーハー | Surface decoration for trim parts and its manufacturing method |
JP2022133446A (en) * | 2018-08-28 | 2022-09-13 | 株式会社イノアックコーポレーション | Sound absorbing panel material for vehicle |
-
1996
- 1996-05-27 JP JP15494196A patent/JP3123017B2/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007500641A (en) * | 2003-07-31 | 2007-01-18 | ファウレシア イネンラウム システム ゲーエムベーハー | Surface decoration for trim parts and its manufacturing method |
JP2006001138A (en) * | 2004-06-17 | 2006-01-05 | Ube Machinery Corporation Ltd | Method and apparatus for molding resin molding |
JP2022133446A (en) * | 2018-08-28 | 2022-09-13 | 株式会社イノアックコーポレーション | Sound absorbing panel material for vehicle |
Also Published As
Publication number | Publication date |
---|---|
JP3123017B2 (en) | 2001-01-09 |
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