JPH11188781A - Manufacture of decorative hollow body and manufacturing device - Google Patents

Manufacture of decorative hollow body and manufacturing device

Info

Publication number
JPH11188781A
JPH11188781A JP35883097A JP35883097A JPH11188781A JP H11188781 A JPH11188781 A JP H11188781A JP 35883097 A JP35883097 A JP 35883097A JP 35883097 A JP35883097 A JP 35883097A JP H11188781 A JPH11188781 A JP H11188781A
Authority
JP
Japan
Prior art keywords
mold
sheet material
hollow body
pressing core
decorative
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
JP35883097A
Other languages
Japanese (ja)
Other versions
JP3695497B2 (en
Inventor
Kazuyuki Yamamoto
和之 山本
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.)
Nihon Plast Co Ltd
Original Assignee
Nihon Plast 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 Nihon Plast Co Ltd filed Critical Nihon Plast Co Ltd
Priority to JP35883097A priority Critical patent/JP3695497B2/en
Publication of JPH11188781A publication Critical patent/JPH11188781A/en
Application granted granted Critical
Publication of JP3695497B2 publication Critical patent/JP3695497B2/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
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/20Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements
    • B29C2049/2017Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor of articles having inserts or reinforcements ; Handling of inserts or reinforcements outside the article
    • 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
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a decorative hollow body by which it is possible to beautifully add a variegated decorative sheet material to the surface of the hollow body without any caresses simultaneously with the molding of the hollow body as well as a compact manufacturing device for the decorative hollow body which is capable of manufacturing various kinds of the hollow body at a low cost and can be simply driven. SOLUTION: A first and a second mold 2, 3 which have molding cavities 2a, 3a for a hollow body are opened and heater 5 and a pressing core 6 which are driven independently of each other are introduced into a space between both molds 2, 3. After heating a decorative sheet material S using a heater 5, the heater 5 is caused to retreat from a clearance between the molds 2, 3, and then the molds 2, 3 are moved into the mold clamping direction to press the cavity 2a of the first mold 2 against the shaping part 6a of the pressing core 6. Further, the decorative sheet material S is thus preliminarily shaped and the pressing core 6 is sidestepped out of the clearance between the molds 2, 3 to blow-mold the decorative hollow body.

Description

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

【0001】[0001]

【発明の属する技術分野】本発明は、例えば車室内のイ
ンナパネルなど、加飾が施された中空体(以下、加飾中
空体という。)を製造する方法及びその製造装置に関
し、更に詳しくは、樹脂製中空体の成形と同時に同中空
体の外表面に加飾シート材料をシワなく添設一体化する
ことのできる加飾中空体の製造方法及びその製造装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a decorated hollow body (hereinafter referred to as a decorated hollow body) such as an inner panel in a vehicle interior, and more particularly to a manufacturing apparatus therefor. The present invention also relates to a method of manufacturing a decorative hollow body capable of integrally adding a decorative sheet material to the outer surface of the hollow body at the same time as molding the resin hollow body without wrinkles, and an apparatus for manufacturing the same.

【0002】[0002]

【従来の技術】従来、合成樹脂製品の装飾を目的とし
て、同樹脂製品に加飾シート材が添設されている。例え
ば、自動車の車室内壁面に設置されるリヤラゲージトリ
ム、ドアトリム、シートバック、天井部材等は、事故発
生時などに乗員が内壁面に衝突したときの衝撃を緩和す
ると共に、その軽量化のため、合成樹脂製の中空体が使
用されている。更に通常は、この中空体には装飾を目的
として、木目調や皮革調の樹脂シートや、布、不織布な
どが添設されている。
2. Description of the Related Art Conventionally, a decorative sheet material has been added to a synthetic resin product for the purpose of decoration. For example, rear luggage trims, door trims, seat backs, ceiling members, etc. installed on the interior wall of an automobile reduce the impact when the occupant collides with the inner wall surface in the event of an accident and reduce the weight. A hollow body made of a synthetic resin is used. Further, usually, the hollow body is provided with a woodgrain-like or leather-like resin sheet, cloth, nonwoven fabric, or the like for decoration purposes.

【0003】かかる加飾中空体の製造方法及びその製造
装置が、例えば特開平4−255321号公報に開示さ
れている。同公報に開示された製造方法によれば、パリ
ソンと相溶性をもつフィルムをブロー成形金型の一方の
金型の内側に、上下に配されたローラで軽くテンション
をかけた状態で張架して、ブロー成形を行っている。こ
のブロー成形時に前記フィルムがパリソンの熱によって
軟化され、パリソンと共に成形金型の内面に接触し、同
金型の内面形状に沿ったブロー成形中空体が形成され
る。そのため、同中空体の表面には前記フィルムが添設
一体化され、流動ムラや型傷等のない美しい外観を呈す
るものである。
A method for manufacturing such a decorated hollow body and an apparatus for manufacturing the same are disclosed, for example, in Japanese Patent Application Laid-Open No. 4-255321. According to the manufacturing method disclosed in the publication, a film compatible with a parison is stretched inside one mold of a blow molding mold with light tension applied by rollers arranged vertically. And blow molding. During the blow molding, the film is softened by the heat of the parison, and comes into contact with the inner surface of the molding die together with the parison to form a blow molded hollow body along the inner surface shape of the die. For this reason, the film is attached to and integrated with the surface of the hollow body, and exhibits a beautiful appearance without flow unevenness or mold damage.

【0004】また、例えば特開平3−236921号公
報には、表面に加飾シート材が添設された板状の合成樹
脂製品を射出成形により製造する方法及びその製造装置
が開示されている。同公報に開示された製造装置は、樹
脂流路を有する固定金型及び可動金型と、同可動金型の
内側に加飾シート材を上下で固定する固定手段と、一面
側にシート材加熱用のヒータを有すると共に他面側にシ
ート材賦形用の押圧コアを有するシート材加熱賦形手段
とを備えている。
[0004] For example, Japanese Patent Application Laid-Open No. 3-236921 discloses a method and apparatus for manufacturing a plate-shaped synthetic resin product having a decorative sheet material attached to the surface thereof by injection molding. The manufacturing apparatus disclosed in the publication includes a fixed mold and a movable mold having a resin flow path, fixing means for vertically fixing a decorative sheet material inside the movable mold, and sheet material heating on one surface side. And a sheet material heating and shaping means having a pressing core for sheet material shaping on the other surface side.

【0005】同装置により加飾樹脂製品を製造するに
は、型開き状態にある両金型間に、前記ヒータを前記可
動金型に対向させた状態で前記シート材加熱賦形手段を
挿入すると同時に、前記可動金型の内側に加飾シート材
を固定し、同加飾シート材を前記ヒータにより加熱す
る。なお、この時、可動金型は前記ヒータに近接した第
1位置にある。その後、可動金型を第2位置まで型開き
方向に移動して両金型を十分に離間させてから、前記シ
ート材加熱賦形手段を反転し、押圧コアを前記可動金型
の内側に対向させる。その状態で、前記可動金型を前記
押圧コアに当接する第3位置まで型閉め方向に移動し、
前記可動金型を前記押圧コアに押しつけて、前記シート
材を前記可動金型のキャビティ形状に予備賦形する。そ
の後、前記可動金型を再び第2位置まで型開き方向に移
動してから前記シート材加熱賦形手段を前記金型間から
退避させ、更に前記可動金型を前記固定金型に当接する
第4位置まで移動して型閉めし、射出成形する。この方
法によれば、シート材を前記可動金型のキャビティ形状
に予備賦形するため、前記シート材はシワなく樹脂製品
の表面に添設される。
In order to manufacture a decorative resin product using the same apparatus, the sheet material heating and shaping means is inserted between the two molds in the mold open state with the heater facing the movable mold. At the same time, a decorative sheet material is fixed inside the movable mold, and the decorative sheet material is heated by the heater. At this time, the movable mold is at the first position close to the heater. Thereafter, the movable mold is moved in the mold opening direction to the second position to sufficiently separate the two molds, and then the sheet material heating and shaping means is reversed, and the pressing core faces the inside of the movable mold. Let it. In this state, the movable mold is moved in the mold closing direction to a third position where the movable mold contacts the pressing core,
The movable mold is pressed against the pressing core, and the sheet material is preformed into a cavity shape of the movable mold. Then, after moving the movable mold to the second position again in the mold opening direction, the sheet material heating and shaping means is retracted from between the molds, and further, the movable mold is brought into contact with the fixed mold. Move to 4 positions, close the mold, and perform injection molding. According to this method, since the sheet material is preformed into the cavity shape of the movable mold, the sheet material is attached to the surface of the resin product without wrinkles.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、上記特
開平4−255321号公報に開示された加飾中空体の
製造方法では、上述したような作用効果を得るために、
前記フィルムがパリソンの熱により十分に軟化されなく
てはならないため、加飾シート材はパリソンと相溶性を
もつと共に軟化点が150℃以下のフィルムに限定され
る。即ち、加飾シート材として軟化点が150℃よりも
高いフィルムや、布又は不織布を採用する場合に、それ
らの加飾シート材はパリソンの熱のみによる軟化が不完
全となるため、中空体表面に均一に貼着されず、成形後
の収縮により前記加飾シート材が局部的にシワがよった
り不自然に緊張されたりした状態で貼着されるといった
不都合が生じる。更には、加飾シート材を予め加熱軟化
しておらず、且つパリソンによる加熱軟化が十分になさ
れないことが相まって、加飾シート材によりブロー成形
時のパリソンの膨張が妨げられ、所望の形態をもつ成形
中空体を得ることができない場合もある。
However, in the method of manufacturing a decorative hollow body disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 4-255321, in order to obtain the above-described functions and effects,
Since the film must be sufficiently softened by the heat of the parison, the decorative sheet material is limited to a film having compatibility with the parison and having a softening point of 150 ° C. or lower. That is, when a film or a cloth or a nonwoven fabric having a softening point higher than 150 ° C. is employed as the decorative sheet material, the decorative sheet material is incompletely softened only by the heat of the parison. The decorative sheet material is not uniformly adhered to the surface, and the decorative sheet material is adhered in a locally wrinkled or unnaturally tensioned state due to shrinkage after molding. Furthermore, since the decorative sheet material is not heat-softened in advance, and the heating softening by the parison is not sufficiently performed, the expansion of the parison at the time of blow molding is prevented by the decorative sheet material, and the desired form is obtained. In some cases, it is not possible to obtain a molded hollow body having the same.

【0007】一方、上記特開平3−236921号公報
に開示された加飾樹脂製品の製造装置は、シート材を加
熱するためのヒータと同シート材を予備賦形するための
押圧コアとがシート材加熱賦形手段として同一の駆動軸
の表裏に配されているため、前記シート材をヒータで加
熱した後、押圧コアで押圧する際に前記駆動軸を回転さ
せなければならない。そのため、前記シート材加熱賦形
手段の駆動軸は同加熱賦形手段を前記金型間に挿脱する
ための往復駆動に加え、上述した回転駆動が必要とな
り、その駆動が複雑なものとなる。
On the other hand, in the apparatus for manufacturing a decorative resin product disclosed in Japanese Patent Application Laid-Open No. 3-236921, a heater for heating a sheet material and a pressing core for preforming the sheet material are provided. Since the heating and shaping means are arranged on the front and back of the same drive shaft, the drive shaft must be rotated when the sheet material is heated by the heater and then pressed by the pressing core. Therefore, in addition to the reciprocating drive for inserting and removing the heating and shaping means between the molds, the driving shaft of the sheet material heating and shaping means needs the above-described rotational drive, and the driving becomes complicated. .

【0008】しかも、前記ヒータと押圧コアとは前記駆
動軸からの突出寸法が異なるため、前記ヒータにより前
記シート材を加熱した後、前記シート材加熱賦形手段を
回動させる際に、前記可動金型を第2位置から第3位置
まで、一旦、後退させなければならない。即ち、前記可
動金型は第1位置から第4位置までの多数の位置を往復
駆動しなければならず、そのため制御機構が複雑にな
る。しかも前記可動金型の移動回数が増え、成形効率が
低下する。更に、前記シート材加熱賦形手段を回動させ
るためには、前記金型間に大きなスペースが必要となり
装置が大型化する。
In addition, since the heater and the pressing core have different projecting dimensions from the drive shaft, when the sheet material is heated by the heater and the sheet material heating and shaping means is rotated, the movable member is moved. The mold must be retracted once from the second position to the third position. That is, the movable mold must reciprocately drive a number of positions from the first position to the fourth position, which complicates the control mechanism. In addition, the number of movements of the movable mold increases, and the molding efficiency decreases. Further, in order to rotate the sheet material heating and shaping means, a large space is required between the dies, and the size of the apparatus is increased.

【0009】また、表面形状の異なる樹脂製品を製造す
る場合に、金型を変更すると共に押圧コアを変更しなけ
ればならないが、前記シート材加熱賦形手段は前記押圧
コアとヒータとが一体に組み立てられているため、押圧
コアのみを単独で変更することが困難である。更に、多
種類の樹脂製品を製造する場合に、前記シート材加熱賦
形手段全体を変更すると、押圧コアと同数のヒータが必
要となり、装置が高価なものとなるため、製品コストも
高くなってしまう。
Further, when manufacturing resin products having different surface shapes, it is necessary to change the mold and the pressing core. However, the sheet material heating and shaping means includes the pressing core and the heater integrated with each other. Since it is assembled, it is difficult to change only the pressing core alone. Furthermore, when manufacturing various kinds of resin products, if the entire sheet material heating and shaping means is changed, the same number of heaters as the pressing cores are required, and the apparatus becomes expensive, so that the product cost increases. I will.

【0010】本発明はかかる課題を解決すべくなされた
ものであり、本発明は、樹脂フィルム、布、不織布など
の多様な加飾シート材を、中空体の成形と同時に同中空
体の表面にシワなく美麗に添設することができる加飾中
空体の製造方法及びその製造装置を提供することを目的
とし、更には、多種類の中空体を製造する場合にも安価
に製造することができ、制御駆動が簡単でコンパクトな
加飾中空体の製造装置を提供することを目的とする。
The present invention has been made in order to solve the above-mentioned problems, and the present invention provides various decorative sheet materials such as resin films, cloths and non-woven fabrics on the surface of the hollow body while forming the hollow body. An object of the present invention is to provide a method for manufacturing a decorative hollow body that can be beautifully attached without wrinkles and a manufacturing apparatus thereof, and furthermore, it is possible to manufacture the hollow body at a low cost even when manufacturing various kinds of hollow bodies. It is another object of the present invention to provide a compact decorative hollow body manufacturing apparatus that is easy to control and drive.

【0011】[0011]

【課題を解決するための手段及び作用効果】上記課題を
解決するために、本発明は、ブロー成形により中空体を
成形すると同時に、その表面に加飾シート材を添設する
加飾中空体の製造方法であって、前記中空体の成形キャ
ビティを有する第1及び第2金型を型開きすること、前
記第1金型の内側に加飾シート材を配すること、前記金
型間に加熱手段と押圧コアとを挿入すること、前記加熱
手段により前記加飾シート材を加熱すること、前記加熱
手段を退避させること、前記第1金型及び前記押圧コア
を相対的に接近させて前記第1金型の成形キャビティに
前記押圧コアの賦形部を押し付け、前記シート材を前記
第1金型のキャビティ形状に予備賦形すること、前記第
1金型及び前記押圧コアを相対的に離間させると共に前
記押圧コアを前記金型間から退避させること、前記第1
及び第2金型の間にパリソンを配すること、及び前記第
1及び第2金型を型閉めしてブロー成形することを含ん
でなることを特徴とする加飾中空体の成形方法を主要な
構成としている。なお、前記シート材を予備賦形する際
に、同シート材を前記シート材を予備賦形する際に、同
シート材を真空吸引及び/又は圧空により前記第1金型
の成形キャビティに沿わせることが好ましい。
Means for Solving the Problems and Effects of the Invention In order to solve the above-mentioned problems, the present invention relates to a decorative hollow body in which a hollow sheet is formed by blow molding and a decorative sheet material is attached to the surface thereof. A manufacturing method, comprising: opening a first and a second mold having a molding cavity of the hollow body, disposing a decorative sheet material inside the first mold, and heating between the molds. Inserting the pressing means and the pressing core, heating the decorative sheet material by the heating means, retracting the heating means, relatively bringing the first mold and the pressing core closer to each other, Pressing the shaping portion of the pressing core against the molding cavity of one mold to pre-shape the sheet material into the cavity shape of the first mold; relatively separating the first mold and the pressing core; And the pressing core is It is retracted from between the mold and the first
And forming a parison between the first and second molds, and closing and blow-molding the first and second molds. Configuration. In addition, when the sheet material is preformed, the sheet material is formed along the molding cavity of the first mold by vacuum suction and / or air pressure when the sheet material is preformed. Is preferred.

【0012】前記方法によれば、加飾シート材を加熱手
段により十分な温度に加熱して軟化した後、押圧コアに
より押し付けて前記第1金型のキャビティ形状に予備賦
形されるため、パリソンの膨張が前記加飾シート材によ
り妨害されることなく、均一に膨張するため、肉厚が略
均一な中空体を得ることができる。また、得られた加飾
中空体は、加飾シート材が局部的にシワがよったり不自
然に緊張されたりすることなく表面に均一に貼着された
外観に優れたものとなる。
According to the above method, the decorative sheet material is heated to a sufficient temperature by the heating means to be softened, and then pressed by the pressing core to be preformed into the cavity shape of the first mold. The expansion is uniformly performed without being hindered by the decorative sheet material, so that a hollow body having a substantially uniform thickness can be obtained. In addition, the obtained decorative hollow body has an excellent appearance in which the decorative sheet material is uniformly adhered to the surface without being locally wrinkled or unnaturally tensioned.

【0013】なお、前記シート材を予備賦形する際に、
第1金型を押圧コアに向けて移動させる場合と、押圧コ
アを第1金型に向けて移動させる場合と、第1金型及び
押圧コアの両者を互いに向けて移動させる場合とがあ
る。いずれの場合であっても、従来のような回転を伴う
駆動機構は不要であるため、その駆動機構が著しく簡素
化されるが、第1金型のみを移動させる場合は、同金型
のブロー成形での型の開閉機構を利用すればよく、その
機構が最も単純となり、好ましい。
[0013] When preforming the sheet material,
There are cases where the first mold is moved toward the pressing core, cases where the pressing core is moved toward the first mold, and cases where both the first mold and the pressing core are moved toward each other. In either case, a driving mechanism involving rotation as in the prior art is not required, so that the driving mechanism is significantly simplified. However, when only the first mold is moved, the blow of the same mold is required. A mechanism for opening and closing the mold in molding may be used, and the mechanism is the simplest and preferable.

【0014】更には、シート材を加熱した後、前記押圧
コアを前記第1金型に対向させるために、前記加熱手段
を両金型間から退避させるだけでよく、前記第1及び第
2金型を移動する必要がない。そのため、前記金型の開
閉位置は、シート材の予備賦形時に前記第1金型を押圧
コアに向けて移動させる場合であっても、シート材加熱
位置、シート材予備賦形位置、及びブロー成形位置の3
位置で足り、その制御駆動が単純化されると共に、前記
金型の移動回数も少なくなるため、生産効率が著しく向
上する。
Further, after heating the sheet material, the heating means only has to be retracted from between the two dies so that the pressing core faces the first die. There is no need to move the mold. Therefore, even when the first mold is moved toward the pressing core during the preforming of the sheet material, the opening / closing position of the mold is not limited to the sheet material heating position, the sheet material preforming position, and the blow position. Molding position 3
Since the position is sufficient, the control driving thereof is simplified, and the number of movements of the mold is reduced, so that the production efficiency is significantly improved.

【0015】更に、本発明は、中空体をブロー成形する
ためのキャビティを有する第1及び第2金型と、同金型
内にパリソンを押し出すためのダイヘッドと、同パリソ
ン内にガスを吹き込むためのガス吹込み器とを備えた加
飾中空体の成形装置であって、開閉動作をする前記金型
間に挿脱されるシート材加熱手段と、前記第1金型との
対向面に同第1金型のキャビティと略同一形状の賦形部
をもち、前記加熱手段とは独立して前記金型間に挿脱さ
れる押圧コアとを備えてなることを特徴とする加飾中空
体の成形装置を他の主要な構成としている。前記第1金
型は、前記加飾シート材の真空吸引手段を備えてなるこ
とが好ましく、また、前記押圧コアは、前記加飾シート
材の圧空手段を備えてなることが好ましい。
Further, the present invention provides a first and a second mold having a cavity for blow molding a hollow body, a die head for extruding a parison into the mold, and a method for blowing gas into the parison. And a sheet material heating means inserted and removed between the molds that open and close, and a surface facing the first mold. A decorative hollow body having a shaping portion having substantially the same shape as the cavity of the first mold, and comprising a pressing core inserted and removed between the molds independently of the heating means. Of the present invention has another main configuration. The first die preferably includes a vacuum suction unit for the decorative sheet material, and the pressing core preferably includes a compressed air unit for the decorative sheet material.

【0016】かかる構成を備えた製造装置は、前記加熱
手段と押圧コアとがそれぞれ独立して駆動されるため、
前記金型間への挿脱にあたって例えばシリンダなどによ
り単に金型の開閉方向と直交する方向に駆動するだけで
よく、駆動機構が単純化される。しかも、同製造装置は
前記金型を型開きしたときに両者の間隙寸法を前記加熱
手段及び押圧コアの突出寸法の和より僅かに大きく設定
すれば足り、従来の同間隙が押圧コアの2倍以上を要す
ることに鑑みると、その寸法が著しく小さくなり、装置
が小型化する。
In the manufacturing apparatus having such a configuration, the heating means and the pressing core are driven independently of each other.
For insertion and removal between the dies, it is sufficient to simply drive the dies in a direction perpendicular to the opening and closing direction of the dies, for example, by a cylinder or the like, and the driving mechanism is simplified. In addition, the manufacturing apparatus only needs to set the gap dimension between the two when the mold is opened slightly larger than the sum of the protrusion dimensions of the heating means and the pressing core. In view of the above, the size is significantly reduced, and the device is downsized.

【0017】また、前記製造装置は前記加熱手段と前記
押圧コアとがそれぞれ独立して駆動されるため、前記押
圧コアのみの変更が可能となる。そのため、多種類の加
飾中空体を製造する場合にも、前記金型に加え、前記押
圧コアのみを変更すればよく、廉価に対処が可能とな
る。
In the manufacturing apparatus, since the heating means and the pressing core are driven independently of each other, only the pressing core can be changed. Therefore, even when manufacturing various kinds of decorative hollow bodies, only the pressing core needs to be changed in addition to the mold, and it is possible to cope with low cost.

【0018】[0018]

【発明の実施の形態】以下、本発明の好適な実施の形態
について、添付図面を参照して詳細に説明する。なお、
本実施例では中空体として自動車のリヤラゲージトリム
を例に挙げて説明するが、本発明はこれに限定されるも
のではなく、例えば自動車のドアトリムや天井部材、或
いは一般的な居住空間におけるシートバックなどにも適
用される。
Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In addition,
In this embodiment, a rear luggage trim of an automobile will be described as an example of the hollow body. However, the present invention is not limited to this. For example, a door trim or a ceiling member of an automobile, or a seat back in a general living space. Also applies to such as.

【0019】図1は、本発明の代表的な実施例である加
飾中空体をブロー成形により製造するための製造装置の
概略図、図2〜図6は前記装置の処理工程順の各作動状
態を示す概略図、図7は同装置における金型の移動位置
の説明図であり、図8は前記装置により製造される加飾
中空体であるリヤラゲージトリムの斜視図及び断面図で
ある。
FIG. 1 is a schematic view of a manufacturing apparatus for manufacturing a decorative hollow body by blow molding, which is a typical embodiment of the present invention. FIGS. FIG. 7 is a schematic view showing a state, FIG. 7 is an explanatory view of a moving position of a mold in the apparatus, and FIG. 8 is a perspective view and a sectional view of a rear luggage trim which is a decorative hollow body manufactured by the apparatus.

【0020】本実施例におけるリヤラゲージトリム20
の製造装置1は、リヤラゲージトリム20の成形キャビ
ティ2a,3aを有する第1及び第2金型2,3を備え
ており、両金型2,3が互いに接離する方向に水平移動
して開閉がなされる。前記第1金型2は前記キャビティ
2aに連通する真空吸引パイプ2bを備えており、前記
第2金型3はキャビティ3aの上下に突起3bが突設さ
れている。
Rear luggage trim 20 in the present embodiment
Is provided with first and second molds 2 and 3 having molding cavities 2a and 3a of the rear luggage trim 20, and the two molds 2 and 3 are horizontally moved in a direction of coming and going with each other. It is opened and closed. The first mold 2 has a vacuum suction pipe 2b communicating with the cavity 2a, and the second mold 3 has protrusions 3b projecting above and below the cavity 3a.

【0021】前記金型2,3の型閉め位置の直上部には
ダイヘッド4が配され、同ダイヘッド4から押し出され
るパリソンPが前記金型2,3間に供給される。更に、
前記製造装置1は前記パリソンP内にガスを吹き込むた
めの図示せぬガス吹込み手段と、前記第1金型2の内側
に加飾シート材Sを供給するための図示せぬシート材供
給部とを備えている。なお、前記シート材供給部を設け
ることなく、手動で加飾シート材Sを供給することも可
能である。
A die head 4 is disposed immediately above the mold closing position of the molds 2 and 3, and a parison P extruded from the die head 4 is supplied between the molds 2 and 3. Furthermore,
The manufacturing apparatus 1 includes a gas blowing unit (not shown) for blowing gas into the parison P and a sheet material supply unit (not shown) for supplying a decorative sheet material S inside the first mold 2. And In addition, it is also possible to manually supply the decorative sheet material S without providing the sheet material supply unit.

【0022】前記金型2,3の下方には、シート材加熱
用のヒータ5とシート材賦形用の押圧コア6とが同一の
スライドテーブル7上に、ヒータ5を前記第1金型2の
側に配して前記金型2,3の開閉方向に並設されてい
る。前記ヒータ5は第1シリンダ8により上下方向に伸
縮駆動されるロッド8aの先端に設置され、一方、押圧
コア6は前記第1シリンダ8とは異なる第2シリンダ9
により上下方向に伸縮駆動されるロッド9aの先端に設
置されており、前記ヒータ5及び押圧コア6は、互いに
独立して型開き状態にある前記金型2,3間に挿脱され
る。前記押圧コア6の前記第1金型2との対向面は、同
第1金型2のキャビティ2aと略同一形状をもつ賦形部
6aを有しており、その上下に突起6bが突設されてい
る。
Below the molds 2 and 3, the heater 5 for heating the sheet material and the pressing core 6 for shaping the sheet material are placed on the same slide table 7, and the heater 5 is placed in the first mold 2 Are arranged side by side in the opening and closing directions of the dies 2 and 3. The heater 5 is installed at the tip of a rod 8 a driven to expand and contract in the vertical direction by a first cylinder 8, while the pressing core 6 is a second cylinder 9 different from the first cylinder 8.
The heater 5 and the pressing core 6 are inserted between the molds 2 and 3 which are open independently of each other. The surface of the pressing core 6 facing the first mold 2 has a shaping portion 6a having substantially the same shape as the cavity 2a of the first mold 2, and projections 6b are provided on the upper and lower sides thereof. Have been.

【0023】前記スライドテーブル7は、装置フレーム
10に固定されたレール11上を前記金型2,3の開閉
方向に摺動可能であり、前記ヒータ5及び押圧コア6の
前記第1金型2に対する挿脱位置を微調整することがで
きる。
The slide table 7 is slidable on rails 11 fixed to the apparatus frame 10 in the opening and closing directions of the dies 2 and 3. Can be finely adjusted.

【0024】かかる構成を備えた製造装置1は、前記ヒ
ータ5と押圧コア6とがそれぞれ独立して駆動されるた
め、それらは単にシリンダ8,9により上下方向に駆動
するだけでよく、駆動機構が単純である。しかも、同製
造装置1は前記金型2,3を型開きしたときに両者の間
隙寸法を前記ヒータ5及び押圧コア6が挿脱可能な寸法
に設定すればよく、大きなスペースを必要としないた
め、装置が小型化する。
In the manufacturing apparatus 1 having such a configuration, since the heater 5 and the pressing core 6 are driven independently of each other, they need only be driven vertically by the cylinders 8 and 9, and a driving mechanism is provided. Is simple. In addition, the manufacturing apparatus 1 only needs to set the gap between the molds 2 and 3 to a dimension where the heater 5 and the pressing core 6 can be inserted and removed when the molds 2 and 3 are opened, and does not require a large space. Therefore, the size of the device is reduced.

【0025】また、前記製造装置1は前記ヒータ5と前
記押圧コア6とがそれぞれに駆動用のシリンダ8,9を
もち、それぞれ独立して駆動されるため、前記押圧コア
6のみの変更が可能となる。そのため、多種類の加飾中
空体を製造する場合にも、前記金型2,3に加え、前記
押圧コア6のみを変更すればよく、廉価に対処が可能と
なる。
In the manufacturing apparatus 1, since the heater 5 and the pressing core 6 have driving cylinders 8 and 9 and are driven independently of each other, only the pressing core 6 can be changed. Becomes Therefore, even when manufacturing various kinds of decorative hollow bodies, only the pressing core 6 needs to be changed in addition to the dies 2 and 3, and it is possible to cope with low cost.

【0026】以下、上記製造装置1を使用して図8に示
すリヤラゲージトリム20を製造する方法について図1
〜6を参照して説明する。前記リヤラゲージトリム20
はポリプロピレンの中空成形体であり、その表面には加
飾シート材として起毛布21が一体に添設されている。
なお、前記リヤラゲージトリム20の材料としては、他
に、ポリエチレン、ABS、mPPO、PC、TPE等
の熱可塑性樹脂を使用することができる。また、加飾シ
ート材としては、織編物や不織布、或いは、TPOシー
トやPVCシートにポリプロピレン、ポリエチレン、A
BS、PC、TPE、平織布、メリヤス等のバッキング
を施したものなどが挙げられる。また、前記織編物や不
織布に厚手のものを使用する場合には、樹脂でバッキン
グを施すことが好ましい。
Hereinafter, a method of manufacturing the rear luggage trim 20 shown in FIG. 8 using the manufacturing apparatus 1 will be described with reference to FIG.
This will be described with reference to FIGS. The rear luggage trim 20
Is a hollow molded body of polypropylene, and a raised cloth 21 is integrally provided as a decorative sheet material on the surface thereof.
In addition, as a material of the rear luggage trim 20, a thermoplastic resin such as polyethylene, ABS, mPPO, PC, and TPE can be used. As the decorative sheet material, a woven or knitted fabric or a nonwoven fabric, or a TPO sheet or a PVC sheet, such as polypropylene, polyethylene, A
Backing materials such as BS, PC, TPE, plain woven fabric, and knitted fabric may be used. When a thick woven or knitted fabric or nonwoven fabric is used, it is preferable to back it with a resin.

【0027】表面に起毛布による加飾が施された前記リ
ヤラゲージトリム20を製造するには、先ず、前記第1
及び第2金型2,3を開き、前記シート材供給部により
第1金型2の内側に近接して加飾シート材Sを供給す
る。この金型2,3の型開き位置を第1位置Aとする。
その状態で、前記第1及び第2シリンダ8,9を作動し
て前記ロッド8a,9aを伸長させ、前記ヒータ5及び
押圧コア6を前記金型間2,3に挿入する(図1)。前
記ヒータ5により前記シート材Sを加熱して軟化させた
後、図2に示すようにヒータ5の第1シリンダ8のみを
作動させて前記ロッド8aを収縮し、ヒータ5を前記金
型2,3間から退避させる。
In order to manufacture the rear luggage trim 20 whose surface is decorated with a raised cloth, first, the first
Then, the second molds 2 and 3 are opened, and the decorative sheet material S is supplied near the inside of the first mold 2 by the sheet material supply unit. The opening position of the dies 2 and 3 is referred to as a first position A.
In this state, the first and second cylinders 8 and 9 are operated to extend the rods 8a and 9a, and the heater 5 and the pressing core 6 are inserted into the gaps 2 and 3 (FIG. 1). After the sheet material S is heated and softened by the heater 5, only the first cylinder 8 of the heater 5 is operated to contract the rod 8a as shown in FIG. Evacuate from 3 spaces.

【0028】その後、前記金型2,3を第1位置Aから
型閉め方向に移動させ、図3に示すように前記第1金型
2のキャビティ2a内に前記押圧コア6を押しつけると
共に、前記第1金型2の真空吸引パイプ2bから真空吸
引することにより前記加飾シート材Sを前記キャビティ
2aにほぼ沿った形状に予備賦形する。このときの金型
2,3の位置を第2位置Bとする。このように、前記シ
ート材Sは加熱により軟化された状態で、前記押圧コア
6により均一な押圧力で押しつけられるため、シワや破
れなどを生じることなく前記キャビティ2aの形状に賦
形される。なお、本実施例では前記シート材Sを前記押
圧コア6により押圧することに加え、真空吸引すること
により、その賦形を円滑に行うことができるものである
が、前記真空吸引は必須のものではなく、従って、前記
真空吸引パイプ2bを排除することも可能である。
Thereafter, the molds 2 and 3 are moved from the first position A in the mold closing direction, and the pressing core 6 is pressed into the cavity 2a of the first mold 2 as shown in FIG. The decorative sheet material S is preliminarily shaped into a shape substantially along the cavity 2a by vacuum suction from the vacuum suction pipe 2b of the first mold 2. The positions of the dies 2 and 3 at this time are referred to as a second position B. As described above, since the sheet material S is pressed by the pressing core 6 with a uniform pressing force in a state of being softened by heating, the sheet material S is shaped into the shape of the cavity 2a without wrinkling or tearing. In the present embodiment, in addition to pressing the sheet material S by the pressing core 6 and vacuum suction, the shaping can be performed smoothly, but the vacuum suction is essential. However, it is also possible to eliminate the vacuum suction pipe 2b.

【0029】この予備賦形時の前記金型2,3の移動
は、前記第2金型3の突起3bが前記押圧コア6に当接
すると共に、同押圧コア6の賦形面に形成された突起6
bが前記第1金型2のキャビティ2aに当接して規制さ
れる。本実施例においては、前記押圧コア6と前記キャ
ビティ2aとの間に僅かに隙間をもたせる位置で、前記
金型2,3の型閉め方向への移動が規制されるよう、前
記突起3b,6bの突出寸法が設定されている。そのた
め、例えば本実施例のように前記加飾シート材Sとして
起毛布21を採用した場合に、前記起毛布21が前記押
圧コア6により過度に押しつぶされて毛倒れが生じると
いったような不都合を回避することができる。なお、前
記突起3b,6bの突出寸法は前記加飾シート材Sの材
質や厚みに応じて設定されるものであり、前記突起3
b,6bの突出寸法を変更可能とすることで、多様なシ
ート材Sにも対応できる製造装置1とすることができ
る。
The movement of the dies 2 and 3 during the preforming is such that the projections 3b of the second dies 3 abut on the pressing core 6 and are formed on the forming surface of the pressing core 6. Protrusion 6
b is in contact with the cavity 2a of the first mold 2 and is regulated. In the present embodiment, the protrusions 3b, 6b are positioned so as to restrict the movement of the dies 2, 3 in the mold closing direction at a position where a slight gap is provided between the pressing core 6 and the cavity 2a. Is set. Therefore, for example, when the raised cloth 21 is employed as the decorative sheet material S as in the present embodiment, the inconvenience such that the raised cloth 21 is excessively crushed by the pressing core 6 and the hair falls down is avoided. can do. The protrusion dimensions of the projections 3b and 6b are set according to the material and thickness of the decorative sheet material S.
By making it possible to change the protrusion dimensions of b and 6b, it is possible to provide the manufacturing apparatus 1 that can cope with various sheet materials S.

【0030】前記シート材Sの賦形が完了すると、前記
第1及び第2金型2,3を再び前記第1位置Aまで移動
して型開きし、続いて前記押圧コア6の第2シリンダ9
を収縮して前記ロッド9aを下方に駆動し、図4に示す
ように前記押圧コア6を前記金型2,3間から退避させ
る。
When the shaping of the sheet material S is completed, the first and second molds 2 and 3 are moved again to the first position A and opened, and then the second cylinder of the pressing core 6 is opened. 9
Is contracted to drive the rod 9a downward to retract the pressing core 6 from between the dies 2 and 3, as shown in FIG.

【0031】その後、前記ダイヘッド4から前記第1及
び第2金型2,3の間にパリソンPが供給され、同第1
及び第2金型2,3を型閉めする。この成形時の金型位
置を第3位置Cとする。この型閉めにあたって、前記第
1及び第2金型2,3の両者が互いに可動であるため、
その位置決めが容易となる。
Thereafter, a parison P is supplied from the die head 4 between the first and second molds 2 and 3, and the first parison P is supplied.
Then, the second molds 2 and 3 are closed. The mold position at the time of this molding is referred to as a third position C. When closing the mold, both the first and second molds 2 and 3 are movable with respect to each other.
The positioning becomes easy.

【0032】その後、ブロー成形がなされるが、本実施
例のように前記シート材Sとして厚手の起毛布を採用し
た場合であっても、前記シート材Sは第1金型2のキャ
ビティ2aに沿って予備賦形されているため、前記パリ
ソンPの膨張の妨げになることがなく、同パリソンPは
前記キャビティ2a,3aに沿って円滑に且つ均一に膨
張し、その表面に前記シート材Sが添設された状態で、
図8に示すリヤラゲージトリム20が成形される。な
お、ブロー成形のブロー圧は5〜10Kg/cm2 と射出成
形よりも著しく低いため、このブロー成形時に前記シー
ト材S(起毛布)が毛倒れするといった不都合も生じな
い。
Thereafter, blow molding is performed. Even when a thick raised cloth is used as the sheet material S as in the present embodiment, the sheet material S remains in the cavity 2a of the first mold 2. Since the preform is formed along the parison P, the parison P does not hinder the expansion of the parison P, and the parison P expands smoothly and uniformly along the cavities 2a and 3a, and the sheet material S With the attached
The rear luggage trim 20 shown in FIG. 8 is formed. Since the blow pressure of blow molding is 5 to 10 kg / cm 2, which is significantly lower than that of injection molding, there is no inconvenience that the sheet material S (napping cloth) falls down during the blow molding.

【0033】本発明の製造方法によれば、前記ヒータ5
と前記押圧コア6とが互いに独立駆動可能に併設されて
おり、前記ヒータ5及び押圧コア6は上下に移動するだ
けで前記金型2,3間にそれぞれ独立して挿脱されるた
め、シート材を加熱した後、前記押圧コアを前記第1金
型に対向させるために、前記第1及び第2金型2,3を
移動する必要がない。そのため、前記金型2,3の開閉
位置が上述したように第1〜第3位置A,B,Cの3つ
の位置で足り、その制御駆動が従来と比較して単純化さ
れると共に、前記金型2,3の移動回数も少なくなるた
め、製造効率も著しく向上する。
According to the manufacturing method of the present invention, the heater 5
And the pressing core 6 are provided so as to be driven independently of each other, and the heater 5 and the pressing core 6 are independently inserted and removed between the molds 2 and 3 only by moving up and down. After heating the material, there is no need to move the first and second molds 2 and 3 in order to make the pressing core face the first mold. Therefore, the opening and closing positions of the dies 2 and 3 are sufficient at the three positions of the first to third positions A, B and C as described above, and the control driving thereof is simplified as compared with the conventional one, and Since the number of movements of the dies 2 and 3 is reduced, the manufacturing efficiency is significantly improved.

【0034】また、本発明の製造方法により製造された
リヤラゲージトリム20は、加飾シート材Sがキャビテ
ィ2aの形状に予備賦形されているため、前記パリソン
Pは膨張が前記シート材Sにより妨害されることがな
い。そのため、均一に膨張がなされ、局部的な薄肉部が
生じることなく、略均一な肉厚をもつ加飾中空体が得ら
れる。また、前記シート材Sはシワなく添設されてお
り、外観に優れたものとなる。
In the rear luggage trim 20 manufactured by the manufacturing method of the present invention, since the decorative sheet material S is preformed in the shape of the cavity 2a, the parison P expands due to the sheet material S. There is no hindrance. Therefore, a decorative hollow body having a substantially uniform thickness can be obtained without being uniformly expanded and having a locally thin portion. Further, the sheet material S is provided without wrinkles, and has excellent appearance.

【0035】なお、本実施例では前記第1金型2を前記
押圧コア6に向けて移動させ、前記シート材の予備賦形
を行っているが、もちろん、前記押圧コア6のみを移動
させ、或いは、同押圧コア6と前記第1金型2とを移動
させて、前記シート材の予備賦形を行うことも可能であ
る。それらの場合には、図9に示すように、前記押圧コ
ア6が設置された前記スライドテーブル7の端部にブラ
ケット12を設け、更に同ブラケット12に水平方向に
伸縮する第3シリンダ13を設置し、同第3シリンダ1
3により前記スライドテーブル7を水平方向に移動させ
ることで、前記押圧コア6を前記第1金型2に向けて移
動することができる。
In this embodiment, the first die 2 is moved toward the pressing core 6 to perform the preforming of the sheet material. Of course, only the pressing core 6 is moved. Alternatively, it is also possible to move the pressing core 6 and the first die 2 to perform preliminary shaping of the sheet material. In these cases, as shown in FIG. 9, a bracket 12 is provided at an end of the slide table 7 on which the pressing core 6 is installed, and a third cylinder 13 which expands and contracts in the horizontal direction is installed on the bracket 12. And the third cylinder 1
The pressing core 6 can be moved toward the first mold 2 by moving the slide table 7 in the horizontal direction by the use of the third mold 3.

【0036】更に、図示は省略するが、前記第1金型2
に設けられた真空吸引パイプ2bに代えて前記押圧コア
6に圧空手段を設け、前記押圧コア6により前記シート
材Sを前記第1金型2の成形キャビティ2aに押圧する
と同時に、前記圧空手段によりシート材Sを成形キャビ
ティ2aに向けて押し付けて、円滑に予備賦形を行うこ
ともできる。
Although not shown, the first mold 2
A pressurizing means is provided in the pressing core 6 instead of the vacuum suction pipe 2b provided in the pressurizing means, and the sheet material S is pressed against the molding cavity 2a of the first mold 2 by the pressing core 6, and at the same time, The sheet material S can be pressed toward the molding cavity 2a to smoothly perform preliminary shaping.

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

【図1】加飾シート材を加熱している状態にある加飾中
空体の製造装置の概略図である。
FIG. 1 is a schematic view of an apparatus for manufacturing a decorative hollow body in a state where a decorative sheet material is being heated.

【図2】加飾シート材の賦形直前の前記製造装置の概略
図である。
FIG. 2 is a schematic diagram of the manufacturing apparatus just before shaping of a decorative sheet material.

【図3】加飾シート材を賦形している状態にある前記製
造装置の概略図である。
FIG. 3 is a schematic view of the manufacturing apparatus in a state where a decorative sheet material is being shaped.

【図4】加飾シート材の賦形後の前記製造装置の概略図
である。
FIG. 4 is a schematic view of the manufacturing apparatus after shaping a decorative sheet material.

【図5】加飾中空体をブロー成形する直前の前記製造装
置の概略図である。
FIG. 5 is a schematic view of the manufacturing apparatus immediately before blow-molding a decorative hollow body.

【図6】加飾中空体をブロー成形している状態にある前
記製造装置の概略図である。
FIG. 6 is a schematic view of the manufacturing apparatus in a state where a decorative hollow body is being blow-molded.

【図7】前記製造装置における第1及び第2金型の移動
位置の説明図である。
FIG. 7 is an explanatory diagram of moving positions of first and second dies in the manufacturing apparatus.

【図8】本発明の製造方法により製造された加飾中空体
の全体図及び断面図である。
FIG. 8 is an overall view and a cross-sectional view of a decorative hollow body manufactured by the manufacturing method of the present invention.

【図9】本発明の製造装置の変形例による製造装置の概
略図である。
FIG. 9 is a schematic diagram of a manufacturing apparatus according to a modification of the manufacturing apparatus of the present invention.

【符号の説明】[Explanation of symbols]

1 加飾中空体製造装置 2 第1金型 2a 成形キャビティ 2b 真空吸引パイプ 3 第2金型 3a 成形キャビティ 3b 突起 4 ダイヘッド 5 ヒータ 6 押圧コア 6a 賦形部 6b 突起 7 スライドテーブル 8 第1シリンダ 8a ロッド 9 第2シリンダ 9a ロッド 10 装置フレーム 11 レール 12 ブラケット 13 第3シリンダ 20 リヤラゲージトリム 21 起毛布 P パリソン S 加飾シート材 DESCRIPTION OF SYMBOLS 1 Decorating hollow body manufacturing apparatus 2 First mold 2a Mold cavity 2b Vacuum suction pipe 3 Second mold 3a Mold cavity 3b Projection 4 Die head 5 Heater 6 Pressing core 6a Shaping section 6b Projection 7 Slide table 8 First cylinder 8a Rod 9 Second cylinder 9a Rod 10 Device frame 11 Rail 12 Bracket 13 Third cylinder 20 Rear luggage trim 21 Raised cloth P Parison S Decorative sheet material

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 FI B29L 22:00 ──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. 6 Identification code FI B29L 22:00

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 ブロー成形により中空体を成形すると同
時に、その表面に加飾シート材を添設する加飾中空体の
製造方法であって、 前記中空体の成形キャビティを有する第1及び第2金型
を型開きすること、 前記第1金型の内側に加飾シート材を配すること、 前記金型間に加熱手段と押圧コアとを挿入すること、 前記加熱手段により前記加飾シート材を加熱すること、 前記加熱手段を退避させること、 前記第1金型及び前記押圧コアを相対的に接近させて前
記第1金型の成形キャビティに前記押圧コアの賦形部を
押し付け、前記シート材を前記第1金型のキャビティ形
状に予備賦形すること、 前記第1金型及び前記押圧コアを相対的に離間させると
共に前記押圧コアを前記金型間から退避させること、 前記第1及び第2金型の間にパリソンを配すること、及
び前記第1及び第2金型を型閉めしてブロー成形するこ
とを含んでなることを特徴とする加飾中空体の成形方
法。
1. A method for manufacturing a decorative hollow body, comprising forming a hollow body by blow molding and simultaneously attaching a decorative sheet material to a surface of the hollow body, the first and the second having a cavity for forming the hollow body. Opening the mold, disposing a decorative sheet material inside the first mold, inserting a heating means and a pressing core between the molds, and applying the decorative sheet material by the heating means. Heating the heating means, retracting the heating means, relatively approaching the first mold and the pressing core to press the shaping portion of the pressing core against a molding cavity of the first mold, and Preforming the material into the cavity shape of the first mold, relatively separating the first mold and the pressing core, and retracting the pressing core from between the molds; Pariso between the second mold Placing the, and method of forming the decorative hollow body characterized by comprising the blow molding by mold closing said first and second mold.
【請求項2】 前記シート材を予備賦形する際に、同シ
ート材を真空吸引及び/又は圧空により前記第1金型の
成形キャビティに沿わせることを含む請求項1記載の成
形方法。
2. The molding method according to claim 1, wherein, when the sheet material is preformed, the sheet material is moved along a molding cavity of the first mold by vacuum suction and / or air pressure.
【請求項3】 中空体をブロー成形するためのキャビテ
ィを有する第1及び第2金型と、同金型内にパリソンを
吐出するためのダイヘッドと、同パリソン内に気体を吹
き込むための気体吹込み器とを備えた加飾中空体の成形
装置であって、 開閉動作をする前記金型間に挿脱されるシート材加熱手
段と、 前記第1金型との対向面に同第1金型のキャビティと略
同一形状の賦形部をもち、前記加熱手段とは独立して前
記金型間に挿脱される押圧コアと、を備えてなることを
特徴とする加飾中空体の成形装置。
3. A first and a second mold having a cavity for blow molding a hollow body, a die head for discharging a parison into the mold, and a gas blower for blowing gas into the parison. A decorative member hollow body forming apparatus, comprising: a sheet material heating unit inserted and removed between the molds that open and close; and a first metal mold on a surface facing the first mold. A molding core having a shaping portion having substantially the same shape as the cavity of the mold, and a pressing core inserted and removed between the molds independently of the heating means. apparatus.
【請求項4】 前記第1金型は、前記加飾シート材の真
空吸引手段を備えてなる請求項3記載の成形装置。
4. The molding apparatus according to claim 3, wherein said first mold includes vacuum suction means for said decorative sheet material.
【請求項5】 前記押圧コアは、前記加飾シート材の圧
空手段を備えてなる請求項3記載の成形装置。
5. The molding apparatus according to claim 3, wherein the pressing core includes a pressurizing unit for the decorative sheet material.
JP35883097A 1997-12-26 1997-12-26 Decorative hollow body manufacturing method and manufacturing apparatus Expired - Fee Related JP3695497B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35883097A JP3695497B2 (en) 1997-12-26 1997-12-26 Decorative hollow body manufacturing method and manufacturing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35883097A JP3695497B2 (en) 1997-12-26 1997-12-26 Decorative hollow body manufacturing method and manufacturing apparatus

Publications (2)

Publication Number Publication Date
JPH11188781A true JPH11188781A (en) 1999-07-13
JP3695497B2 JP3695497B2 (en) 2005-09-14

Family

ID=18461332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35883097A Expired - Fee Related JP3695497B2 (en) 1997-12-26 1997-12-26 Decorative hollow body manufacturing method and manufacturing apparatus

Country Status (1)

Country Link
JP (1) JP3695497B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007223218A (en) * 2006-02-24 2007-09-06 Kasai Kogyo Co Ltd Molding process for laminated molded article and mold
EP1864782A1 (en) * 2006-06-09 2007-12-12 Kautex Textron GmbH & Co. KG. Method for manufacturing hollow bodies made of thermoplastic material having inserts on the inside and /or outside
JP2008023870A (en) * 2006-07-21 2008-02-07 Kasai Kogyo Co Ltd Molding method of laminated molded article and mold
KR20160060517A (en) * 2014-11-20 2016-05-30 한강회 Blow mold control apparatus for manufacturing glass vessel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007223218A (en) * 2006-02-24 2007-09-06 Kasai Kogyo Co Ltd Molding process for laminated molded article and mold
EP1864782A1 (en) * 2006-06-09 2007-12-12 Kautex Textron GmbH & Co. KG. Method for manufacturing hollow bodies made of thermoplastic material having inserts on the inside and /or outside
US8003041B2 (en) 2006-06-09 2011-08-23 Kautex Textron Gmbh & Co. Kg Process for the production of hollow bodies of thermoplastic material
JP2008023870A (en) * 2006-07-21 2008-02-07 Kasai Kogyo Co Ltd Molding method of laminated molded article and mold
KR20160060517A (en) * 2014-11-20 2016-05-30 한강회 Blow mold control apparatus for manufacturing glass vessel

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