JPH10109327A - Production of resin molded object having skin on part of its surface - Google Patents

Production of resin molded object having skin on part of its surface

Info

Publication number
JPH10109327A
JPH10109327A JP28464196A JP28464196A JPH10109327A JP H10109327 A JPH10109327 A JP H10109327A JP 28464196 A JP28464196 A JP 28464196A JP 28464196 A JP28464196 A JP 28464196A JP H10109327 A JPH10109327 A JP H10109327A
Authority
JP
Japan
Prior art keywords
skin
molten resin
mold
resin
space
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
Application number
JP28464196A
Other languages
Japanese (ja)
Other versions
JP3254623B2 (en
Inventor
Kenji Murakami
賢治 村上
Yoshitoshi Shoji
佳年 庄司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP28464196A priority Critical patent/JP3254623B2/en
Publication of JPH10109327A publication Critical patent/JPH10109327A/en
Application granted granted Critical
Publication of JP3254623B2 publication Critical patent/JP3254623B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561Injection-compression moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16Making multilayered or multicoloured articles
    • B29C45/1671Making multilayered or multicoloured articles with an insert
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection 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
    • B29C2045/1486Details, accessories and auxiliary operations
    • B29C2045/14901Coating a sheet-like insert smaller than the dimensions of the adjacent mould wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005Body finishings
    • B29L2031/3041Trim panels

Abstract

PROBLEM TO BE SOLVED: To prevent the damage or wrinkling of a skin or to prevent the release with a base material resin by pressing the skin over the total length of the edge part thereof by a press ring and spreading a molten resin over the surface of the skin and also ejecting the molten resin even to the outside and subsequently allowing the press ring to retreat. SOLUTION: A skin 14 is set to the cavity surface of a moving mold 10 at a predetermined position. The moving mold 10 is allowed to advance to a predetermined position and the skin 14 is pressed over the total length thereof by the press ring 18 of a cylinder 19. At this time, a space part 20 of about 30mm is formed. A dumpling shaped molten resin is injected into the space part 20 and the moving mold 10 is allowed to advance until a compression flange becomes about 3-4mm to spread the molten resin on the surface of the skin 14 to be closely bonded thereto. Next, the molten resin is also injected into the outside of the space part 20 and the moving mold 10 is allowed to advance to compress the compression flange and the press ring 18 is allowed to retreat while the bonding of the molten resin in the space part 20 and the outside molten resin is achieved.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は表皮を型内に配置して一
体成形をし、成形体表面の一部に表皮を有す成形体の製
造方法に関んする。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a molded article having a skin on a part of the surface of the molded article, wherein the skin is arranged in a mold and integrally molded.

【0002】[0002]

【従来技術】近年、自動車の内装部品には樹脂基材を塩
ビレザー等の表皮で表面を被覆したものが使用されてい
が、この様な内装部品の製造は価格的および見栄え上か
ら表皮を型内に配置して一体成形をすること行われてい
る。
2. Description of the Related Art In recent years, for interior parts of automobiles, a resin base material whose surface is coated with a skin such as PVC leather has been used, but such interior parts are manufactured by molding the skin from the viewpoint of cost and appearance. It is performed to arrange inside and to integrally mold.

【0003】その方法を図8ないし図10により説明す
ると、雌型1内の凹部2に表皮3をセットし、雄型4と
の間に圧縮代δを残して型閉じを行い、射出ゲート5か
ら金型キャビテイ6内に基材樹脂7となる溶融樹脂を射
出し、図10のように圧縮代δを圧縮する方法であっ
た。
The method will be described with reference to FIGS. 8 to 10. Referring to FIGS. 8 to 10, a skin 3 is set in a concave portion 2 in a female mold 1, a mold is closed while leaving a compression allowance δ with a male mold 4, and an injection gate 5 is formed. In this method, the molten resin that becomes the base resin 7 is injected into the mold cavity 6 from the mold, and the compression margin δ is compressed as shown in FIG.

【0004】[0004]

【発明が解決しょうとする課題】従って前述のような表
皮と基材樹脂を一体成形する場合、射出された樹脂の圧
力が高すぎて表皮が破損したり、皺ができたり或いは表
皮が所定位置からズレたりする等の欠点があった。また
両型を小間隙の型開き状態で溶融樹脂を射出し、圧縮し
ていたので、溶融樹脂がキャビティ末端まで届きにく
く、末端に該当する表皮と基材樹脂との接着不良が起き
やすく、表皮と基材樹脂の剥離が起きた。
Therefore, when integrally molding the skin and the base resin as described above, the pressure of the injected resin is so high that the skin is damaged, wrinkles are formed, or the skin is positioned at a predetermined position. There were drawbacks such as deviation from In addition, since the molten resin was injected and compressed with both molds open with a small gap, the molten resin was difficult to reach the end of the cavity, and poor adhesion between the skin corresponding to the end and the base resin was likely to occur. And peeling of the base resin occurred.

【0005】本発明の目的は前述のような表皮が破損や
皺ができたりする欠点、或いは表皮と基材樹脂の剥離と
なるような欠点を取除いた表皮を表面の一部に有する樹
脂成形体の製造方法を提供することにある。
It is an object of the present invention to provide a resin molding having a part of the surface without the defect that the surface is damaged or wrinkled as described above, or the defect that the surface resin is separated from the base resin. An object of the present invention is to provide a method for producing a body.

【0006】[0006]

【課題を解決するための手段】前述の目的を達成するた
め本発明は型開状態の両金型のいずれか一側に表皮をセ
ットした後、他側金型側に設けた押さえリングにより前
記表皮を縁部全長に亘って押さえるとともに、表皮面上
に他側金型と協動して空間部を形成し、第1の射出装置
により同空間部に溶融樹脂を団子状に注入し、次いで前
記空間部の溶融樹脂を圧縮し、所定の圧縮代を残して同
樹脂を表皮面上に押拡げた後、第2の射出装置により押
さえリングが囲った空間部の外側の金型キャビテイに溶
融樹脂を射出し、更に前記圧縮代を圧縮することにより
金型キャビテイを圧縮するとともに、前記押さえリング
を表皮面上から後退させるようにした表皮を表面の一部
に有する樹脂成形体の製造方法とした。
In order to achieve the above-mentioned object, the present invention sets a skin on one side of both molds in a mold open state, and then uses a pressing ring provided on the other mold side to form the skin. While pressing the skin over the entire length of the edge, a space is formed on the surface of the skin in cooperation with the other mold, and the first injection device injects molten resin into the space in a dumpling manner, After compressing the molten resin in the space portion and expanding the resin on the skin surface with a predetermined compression allowance, the second injection device melts the resin in the mold cavity outside the space portion surrounded by the pressing ring. Injecting a resin, compressing the mold cavity by further compressing the compression allowance, and a method of manufacturing a resin molded body having a part of the surface having a surface so as to retreat the press ring from the surface of the surface. did.

【0007】また第2の射出装置による溶融樹脂の射出
後の金型キャビテイの圧縮は第2の射出装置のバルブゲ
ートを開いた状態で行うことを特徴とする前記表皮を表
面の一部に有する樹脂成形体の製造方法とした。
[0007] The compression of the mold cavity after the injection of the molten resin by the second injection device is performed with the valve gate of the second injection device opened, and the skin is partially provided on the surface. A method for producing a resin molded article was used.

【0008】[0008]

【発明の実施の形態】型開状態の両金型のいずれか一側
に表皮をセットした後、押さえリングにより同表皮を押
さえるとともに、他側金型と押さえリングで囲まれた皮
面上に団子状に溶融樹脂を注入し、同樹脂を圧縮して表
皮面上に押拡げた後、押さえリングが囲った空間部の外
側の金型キャビテイに基材となる溶融樹脂を射出し、更
に金型キャビテイを圧縮しながら押さえリングを表皮面
上から後退させるようにして表皮部は圧力のかからな
い、従って表皮部を破損などをさせない型による圧縮成
形とし、しかも基材となる溶融樹脂と押さえリングが囲
った空間部内の樹脂との接合を図るとともに、強度の必
要な表皮部以外は射出成形を行う表皮を表面の一部に有
する樹脂成形体の製造方法とした。
BEST MODE FOR CARRYING OUT THE INVENTION After setting the skin on one side of both molds in the mold open state, the skin is pressed by a holding ring, and the skin is surrounded by the holding ring with the other mold. After injecting the molten resin in a dumpling shape, compressing and expanding the resin on the surface of the skin, the molten resin serving as the base material is injected into the mold cavity outside the space surrounded by the holding ring. The press ring is retracted from the surface of the skin while compressing the mold cavity, so that the skin portion is not subjected to pressure, and is therefore compression-molded using a mold that does not damage the skin portion. A method of manufacturing a resin molded body having a surface part to be injection-molded on a part of the surface except for a surface part requiring strength while achieving bonding with the resin in the enclosed space part.

【0009】[0009]

【実施例】図1ないし図7により本発明の1実施例を説
明すると、10は移動金型で、移動ダイプレート11に
取付けられ、固定ダイプレート12に取付けられた固定
金型13に対し進退し、同固定金型13との間で金型キ
ャビテイを形成するようになっている。前記移動金型1
0には図示してない真空ポンプ等で表皮14を吸引して
所定のキヤビテイ面にセットする吸引孔15が設けてあ
る。前記表皮14は例へば図6に示すような製品16の
基材樹脂17と一体成形するもので、成形に際し、表皮
14が所定位置にセットされた移動金型10が前進(図
中左方向)し、所定の圧縮代を残して型締されたとき、
図7に示すよう表皮14の縁部全長に亘って押さえる押
さえリング18が固定金型13に設けてあり、同押さえ
リング18はシリンダ19により駆動される。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 7. Reference numeral 10 denotes a movable die, which is mounted on a movable die plate 11 and moves forward and backward with respect to a fixed die 13 mounted on a fixed die plate 12. FIG. A mold cavity is formed with the fixed mold 13. The moving mold 1
0 is provided with a suction hole 15 for sucking the skin 14 with a vacuum pump or the like (not shown) and setting it on a predetermined cavity surface. The skin 14 is formed integrally with the base resin 17 of the product 16 as shown in FIG. 6, for example. In the molding, the movable mold 10 in which the skin 14 is set at a predetermined position moves forward (leftward in the figure). , When the mold is clamped leaving a predetermined compression allowance,
As shown in FIG. 7, a holding ring 18 for holding the entire length of the edge of the skin 14 is provided on the fixed mold 13, and the holding ring 18 is driven by a cylinder 19.

【0010】前記押さえリング18は表皮14の縁部全
長に亘って押さえたとき、表皮14の表面上には押さえ
リング18と固定金型13のキャビティ面とで協動して
空間部20が形成されるようになっている。この空間部
20には同空間部20に団子状に溶融樹脂21を注入す
るバルブゲートを有する第1の射出装置22が設けてあ
る。また固定金型13には押さえリング18により表皮
面上に囲われた空間部20の外側の金型キャビテイ23
に基材樹脂17となる溶融樹脂24を射出するバルブゲ
ートを有する第2の射出装置25も設けてある。
When the pressing ring 18 is pressed over the entire length of the edge of the skin 14, a space 20 is formed on the surface of the skin 14 in cooperation with the pressing ring 18 and the cavity surface of the fixed mold 13. It is supposed to be. The space 20 is provided with a first injection device 22 having a valve gate for injecting the molten resin 21 into the space 20 in a dumpling manner. Further, the fixed mold 13 has a mold cavity 23 outside the space 20 surrounded on the skin surface by the pressing ring 18.
A second injection device 25 having a valve gate for injecting the molten resin 24 serving as the base resin 17 is also provided.

【0011】以上説明したような構成となっており、次
に作用動作を説明すると、型開状態にある移動金型10
の金型キャビティ面の所定位置に表皮14をセットし、
ズレ等が起きないように吸引孔15から吸引する(図
1)。次いで移動金型10を所定位置まで前進させると
ともにシリンダ19により押さえリング18で表皮14
の全長に亘って押さえ、表皮14面上に30mm程度の
空間部20を形成する(図2)。続いて、第1の射出装
置22の図示してないバルブゲートを開き,前記空間部
20に団子状に溶融樹脂21を注入する(図3)。
The operation as described above will now be described. The operation of the moving mold 10 in the mold open state will now be described.
The skin 14 is set at a predetermined position on the mold cavity surface of
Suction is performed through the suction hole 15 so as not to cause displacement (FIG. 1). Next, the movable mold 10 is advanced to a predetermined position, and the cover 14 is
To form a space 20 of about 30 mm on the surface of the skin 14 (FIG. 2). Subsequently, the valve gate (not shown) of the first injection device 22 is opened, and the molten resin 21 is injected into the space 20 in a dumpling shape (FIG. 3).

【0012】前記空間部20内に所定量の団子状に溶融
樹脂21が注入され、第1の射出装置22のバルブゲー
トを閉じた後、移動金型10を圧縮代が3〜4mm程度
となるまで前進させ、空間部20内の溶融樹脂21を圧
縮し、表皮14面上に溶融樹脂21aのよえに押し拡げ
同表皮14面に密着させる(図4)。次ぎに押さえリン
グ18により表皮面上に囲われた空間部20の外側の金
型キャビテイ23に第2の射出装置25より溶融樹脂2
4が射出され、第2の射出装置25のバルブゲートを閉
じた後、移動金型10を前進させ、3〜4mm程度ある
圧縮代を圧縮するとともに、まだ硬化してなく、柔らか
な溶融状態にある空間部20内の溶融樹脂21aと第2
の射出装置25より射出された溶融樹脂24の接合(A
部分)を図りながら表皮14の縁部を押さえていた押さ
えリング18を表皮14面から後退させる(図5)。
After a predetermined amount of molten resin 21 is injected into the space 20 in the form of a dumpling, and the valve gate of the first injection device 22 is closed, the moving allowance of the movable mold 10 is reduced to about 3 to 4 mm. Then, the molten resin 21 in the space 20 is compressed, pushed and spread on the surface of the skin 14 as a molten resin 21a, and brought into close contact with the surface of the skin 14 (FIG. 4). Next, the molten resin 2 is supplied from the second injection device 25 to the mold cavity 23 outside the space 20 surrounded on the skin surface by the press ring 18.
4 is injected, and after closing the valve gate of the second injection device 25, the movable mold 10 is advanced to compress a compression allowance of about 3 to 4 mm, and to have not yet hardened and become a soft molten state. The molten resin 21a in a certain space 20 and the second
Of the molten resin 24 injected from the injection device 25 (A)
The pressing ring 18 that has pressed down the edge of the skin 14 is retracted from the surface of the skin 14 (FIG. 5).

【0013】ここで第2の射出装置25の溶融樹脂24
の射出後、バルブゲートを閉じた例を説明したが、これ
に限らず、バルブゲートを開いたまま圧縮を掛ければ、
キャビティ23内と射出装置25の間で樹脂圧の押合を
行い、キャビティ23内の樹脂の冷却による硬化、収縮
によりキャビティ23内と射出装置25の間のバランス
が取られ、成形品に残留歪み等を与えない方法もある。
Here, the molten resin 24 of the second injection device 25
After the injection, the example where the valve gate was closed was explained, but the invention is not limited to this. If compression is applied with the valve gate open,
The resin pressure is pressed between the inside of the cavity 23 and the injection device 25, and the resin in the cavity 23 is cured and contracted by cooling, so that the balance between the inside of the cavity 23 and the injection device 25 is obtained. There is also a method that does not give.

【0014】[0014]

【発明の効果】以上説明したように製品が成形され、表
皮部分は押さえリングで表皮を縁部全長に亘って押さえ
るとともに、表皮面上を囲って型による圧縮成形が行わ
れ、強度が必要な製品の基材と成る樹脂部分は射出成形
で成形されるので、表皮は所定位置からズレることがな
く、かつ傷等ができないばかりでなく、押さえリングで
囲われたた表皮部分には射出成形による高圧の影響がな
い。また圧縮とともに押さえリングで囲った部分と囲い
外部の樹脂の接合を図りながら押さえリングを表皮面上
から後退させるので、表皮と基材と成る樹脂部分の接合
がよくなり、剥離もない。前述の実施例では表皮を移動
金型にセットした例を説明したが、勿論これに限るもの
でなく、固定金型にセットしてもかまわない。
As described above, the product is molded. The outer skin portion is pressed by the pressing ring with the press ring to press the outer skin over the entire length of the edge, and compression molding by the mold is performed around the outer skin surface. Since the resin part that becomes the base material of the product is molded by injection molding, the skin does not shift from a predetermined position and not only can not be scratched, but also the skin part surrounded by the holding ring is injection molded. No effect of high pressure. In addition, since the pressing ring is retracted from the surface of the skin while joining the resin surrounded by the pressing ring and the outside of the enclosure together with the compression, the bonding between the skin and the resin portion serving as the base material is improved, and there is no separation. In the above-described embodiment, an example in which the skin is set in the movable mold has been described. However, the present invention is not limited to this, and may be set in a fixed mold.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の1実施例を示す図で、移動金型に表皮
をセットした図。
FIG. 1 is a view showing one embodiment of the present invention, in which a skin is set on a movable mold.

【図2】本発明の1実施例を示す図で、図1の次の段階
である表皮を押さえリングで囲った時の図。
FIG. 2 is a view showing one embodiment of the present invention, and is a view showing the next stage of FIG. 1 when the outer skin is surrounded by a pressing ring.

【図3】本発明の1実施例を示す図で、図2の次の段階
である押さえリングで囲った空間部に団子状に溶融樹脂
を注入した時の図。
FIG. 3 is a view showing one embodiment of the present invention, in which molten resin is injected in a dumpling shape into a space surrounded by a press ring, which is the next stage of FIG.

【図4】本発明の1実施例を示す図で、図3の次の段階
である押さえリングで囲った空間部内の団子状溶融樹脂
を表皮上に押拡げ、所定の圧縮代を残した状態を示す
図。
FIG. 4 is a view showing one embodiment of the present invention, in which the next stage of FIG. 3 is a state in which a dumpling-like molten resin in a space surrounded by a press ring is spread on a skin and a predetermined compression allowance is left. FIG.

【図5】本発明の1実施例を示す図で、図4の次の段階
である押さえリングで囲った空間部の外側のキャビティ
部に基材となる溶融樹脂を射出し、圧縮した時の図。
FIG. 5 is a view showing one embodiment of the present invention, in which molten resin as a base material is injected into a cavity outside a space surrounded by a press ring, which is the next stage of FIG. FIG.

【図6】本発明の1実施例を示す図で、製品を示す図。FIG. 6 is a view showing an embodiment of the present invention, and is a view showing a product.

【図7】本発明の1実施例を示す図で、押さえリングが
表皮を押さえた状態を示す図。
FIG. 7 is a view showing one embodiment of the present invention, and is a view showing a state in which a pressing ring presses an epidermis.

【図8】従来の成形方法の説明図で、雌金型に表皮をセ
ットする時の図。
FIG. 8 is an explanatory view of a conventional molding method, showing a case where a skin is set on a female mold.

【図9】従来の成形方法の説明図で、圧縮代を残した型
締状態を示す図。
FIG. 9 is an explanatory view of a conventional molding method, showing a mold clamping state with a compression margin left.

【図10】従来の成形方法の説明図で、表皮をセットし
たキャビティ内に基材となる溶融樹脂を射出し、圧縮し
た状態を示す図。
FIG. 10 is an explanatory view of a conventional molding method, showing a state in which a molten resin serving as a base material is injected into a cavity in which a skin is set and compressed.

【符号の説明】[Explanation of symbols]

10 移動金型 11 移動ダイプレート 12 固定ダイプレート 13 固定金型 14 表皮 15 吸引孔 16 製品 17 基材樹脂 18 押さえリング 19 シリンダ 20 空間部 21 団子状樹脂 22 第1の射出装置 23 金型キャビティ 24 溶融樹脂 25 第2の射出装置 REFERENCE SIGNS LIST 10 moving die 11 moving die plate 12 fixed die plate 13 fixed die 14 skin 15 suction hole 16 product 17 base resin 18 press ring 19 cylinder 20 space portion 21 dumpling resin 22 first injection device 23 mold cavity 24 Molten resin 25 Second injection device

─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成9年1月20日[Submission date] January 20, 1997

【手続補正1】[Procedure amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】発明の名称[Correction target item name] Name of invention

【補正方法】変更[Correction method] Change

【補正内容】[Correction contents]

【発明の名称】 表皮を表面の一部に有する樹
脂成形体の製造方法
Patent application title: Method for producing resin molded article having skin on part of its surface

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 型開状態の両金型のいずれか一側に表皮
をセットし、他側金型を所定位置まで前進させた後、他
側金型側に設けた押さえリングにより前記表皮を縁部全
長に亘って押さえるとともに、表皮面上に他側金型と協
動して空間部を形成し、第1の射出装置により同空間部
に溶融樹脂を団子状に注入し、次いで前記空間部の溶融
樹脂を圧縮し、所定の圧縮代を残して同樹脂を表皮面上
に押拡げた後、第2の射出装置により押さえリングが囲
った空間部の外側の金型キャビテイに溶融樹脂を射出
し、更に前記圧縮代を圧縮することにより金型キャビテ
イを圧縮するとともに、前記押さえリングを表皮面上か
ら後退させるようにした表皮を表面の一部に有する樹脂
成形体の製造方法。
1. A skin is set on one side of both molds in a mold open state, and after the other mold is advanced to a predetermined position, the skin is fixed by a holding ring provided on the other mold side. While pressing over the entire length of the edge, a space is formed on the skin surface in cooperation with the other mold, and a molten resin is injected into the space by a first injection device in a dumpling manner. Part of the molten resin is compressed and spread over the skin surface, leaving a predetermined compression allowance, and then the molten resin is injected into the mold cavity outside the space surrounded by the pressing ring by the second injection device. A method for producing a resin molded body having a surface part of which is formed by injecting and further compressing the compression margin to compress the mold cavity and to retreat the pressing ring from the surface of the surface.
【請求項2】 第2の射出装置による溶融樹脂の射出後
の金型キャビテイの圧縮は第2の射出装置のバルブゲー
トを開いた状態で行うことを特徴とする請求項1記載の
金型を用いた表面の一部に有する樹脂成形体の製造方
法。
2. The mold according to claim 1, wherein the compression of the mold cavity after the injection of the molten resin by the second injection device is performed with the valve gate of the second injection device opened. A method for producing a resin molded body having a part of a used surface.
JP28464196A 1996-10-07 1996-10-07 Method for producing resin molded article having skin on part of surface Expired - Fee Related JP3254623B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28464196A JP3254623B2 (en) 1996-10-07 1996-10-07 Method for producing resin molded article having skin on part of surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28464196A JP3254623B2 (en) 1996-10-07 1996-10-07 Method for producing resin molded article having skin on part of surface

Publications (2)

Publication Number Publication Date
JPH10109327A true JPH10109327A (en) 1998-04-28
JP3254623B2 JP3254623B2 (en) 2002-02-12

Family

ID=17681102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28464196A Expired - Fee Related JP3254623B2 (en) 1996-10-07 1996-10-07 Method for producing resin molded article having skin on part of surface

Country Status (1)

Country Link
JP (1) JP3254623B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1112831A1 (en) * 1999-12-30 2001-07-04 Delphi Technologies, Inc. Method of making an interior trim panel
FR2807699A1 (en) * 2000-04-18 2001-10-19 Volkswagen Ag PROCESS AND DEVICE FOR MANUFACTURING A PLASTIC MOLDED PART WITH COUNTER-LAYERED FIELDS WITH A COVERING MATERIAL
EP1179404A1 (en) * 2000-08-02 2002-02-13 Ikuyo Co., Ltd Apparatus for and method of injection-molding a body of synthetic resin
US6838027B2 (en) 1999-12-30 2005-01-04 Delphi Technologies, Inc. Method of making an interior trim panel
JP2017128123A (en) * 2011-08-30 2017-07-27 ジョンソン コントロールズ テクノロジー カンパニーJohnson Controls Technology Company Vehicle trim component and method of manufacturing the same
JP2017159473A (en) * 2016-03-07 2017-09-14 テイ・エス テック株式会社 Molding device for interior component for vehicle and method for molding the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1112831A1 (en) * 1999-12-30 2001-07-04 Delphi Technologies, Inc. Method of making an interior trim panel
US6838027B2 (en) 1999-12-30 2005-01-04 Delphi Technologies, Inc. Method of making an interior trim panel
FR2807699A1 (en) * 2000-04-18 2001-10-19 Volkswagen Ag PROCESS AND DEVICE FOR MANUFACTURING A PLASTIC MOLDED PART WITH COUNTER-LAYERED FIELDS WITH A COVERING MATERIAL
EP1179404A1 (en) * 2000-08-02 2002-02-13 Ikuyo Co., Ltd Apparatus for and method of injection-molding a body of synthetic resin
JP2017128123A (en) * 2011-08-30 2017-07-27 ジョンソン コントロールズ テクノロジー カンパニーJohnson Controls Technology Company Vehicle trim component and method of manufacturing the same
JP2017159473A (en) * 2016-03-07 2017-09-14 テイ・エス テック株式会社 Molding device for interior component for vehicle and method for molding the same

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