JPS62255116A - Blow molded form and manufacture thereof - Google Patents
Blow molded form and manufacture thereofInfo
- Publication number
- JPS62255116A JPS62255116A JP9866386A JP9866386A JPS62255116A JP S62255116 A JPS62255116 A JP S62255116A JP 9866386 A JP9866386 A JP 9866386A JP 9866386 A JP9866386 A JP 9866386A JP S62255116 A JPS62255116 A JP S62255116A
- Authority
- JP
- Japan
- Prior art keywords
- molded product
- soft layer
- skin
- mold
- molded form
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000000465 moulding Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000000071 blow moulding Methods 0.000 claims description 4
- 229920003002 synthetic resin Polymers 0.000 claims description 4
- 239000000057 synthetic resin Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 12
- 239000000853 adhesive Substances 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract description 3
- 210000003491 skin Anatomy 0.000 description 21
- 230000000694 effects Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 210000002615 epidermis Anatomy 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、合成樹脂製でブロー成形される成形品本体の
表面の所定部位に軟質層を介在させて表皮が配設される
ブロー成形品及びその製造方法に関し、例えば、ソフＩ
・な感触が得られるような自動車内装品におけるコンソ
ールボックス等のブロー成形品及びその製造方法に関す
る。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a blow-molded product in which a skin is disposed on a predetermined part of the surface of a blow-molded product made of synthetic resin with a soft layer interposed therebetween. and its manufacturing method, for example, Soft I
-Relates to blow-molded products such as console boxes for automobile interior parts that provide a comfortable feel, and a method for manufacturing the same.
〈従来の技術〉
従来、この種のブロー成形品は、第６図に示すようであ
った。<Prior Art> Conventionally, this type of blow molded product was as shown in FIG.
この成形品１は、ＰＰからなる成形品本体２の上面に発
泡ＰＰからなる軟質層３を備え、さらに、軟質層３上面
と成形品本体２の両側面にわたって軟質層３より若干硬
い表皮４が被覆されて構成されていた。This molded product 1 includes a soft layer 3 made of foamed PP on the top surface of a molded product body 2 made of PP, and a skin 4 that is slightly harder than the soft layer 3 over the top surface of the soft layer 3 and both sides of the molded product body 2. It was covered and constructed.
この成形品ｌの製造について述べると、まず、第７・８
図に示すように、予め軟質層３を所定部位に接着させた
表皮４を、所定形状に賦形させるとともに成形品本体２
成形用の金型７の所定の割型９に配設させる。To describe the production of this molded product 1, first, the 7th and 8th
As shown in the figure, a skin 4 with a soft layer 3 adhered to a predetermined portion in advance is shaped into a predetermined shape, and a molded product main body 2
It is arranged in a predetermined split mold 9 of a mold 7 for molding.
そして、割型８・９の間に押出機５から押し出したパリ
ソン６を配置させ、第９・１０図に示すように、パリソ
ン６内へエアを吹き込みつつ型締めして成形品本体２を
成形し、所定時間冷却させた後、離型させ、端末部位を
処理して＼成形品１を製造していた。Then, the parison 6 extruded from the extruder 5 is placed between the split molds 8 and 9, and as shown in Figures 9 and 10, the mold is clamped while blowing air into the parison 6 to form the molded product body 2. After cooling for a predetermined period of time, the mold was released and the end portions were treated to produce molded product 1.
なお、１０は、成形時、成形品本体２と表皮４とを丸め
込んでそれらの端末部位を成形品１の底面に配置させる
ようにする、成形品１の外観を良好にするための端末処
理用のスライドコアである〈発明が解決しようとする問
題点〉
しかし、従来の成形品１では、成形品本体２の表面の所
定部位にしか軟質層３が配設されないことから、成形時
、軟質層３で配設される成形品本体２の外周部２ａにお
いて１割型９の型面９ａからの冷却作用が、軟質層３の
有無により、軟質層３及び表皮４を配設させる部位と表
皮４だけを配設させる部位とで不均一なものとなってお
り、軟質層３が配設される部位が成形品本体２とともに
波打ち易く、不良品が発生し易かった。In addition, 10 is used for end treatment to improve the appearance of the molded product 1 by rolling the molded product body 2 and the skin 4 so that their end portions are placed on the bottom surface of the molded product 1 during molding. <Problems to be Solved by the Invention> However, in the conventional molded product 1, the soft layer 3 is disposed only on a predetermined portion of the surface of the molded product body 2, so that the soft layer 3 is Depending on the presence or absence of the soft layer 3, the cooling effect from the mold surface 9a of the split mold 9 on the outer periphery 2a of the molded product main body 2 disposed in the molded product body 2 is applied to the area where the soft layer 3 and the skin 4 are arranged and the skin 4. The area where the soft layer 3 is disposed is not uniform, and the area where the soft layer 3 is disposed tends to wave along with the molded product main body 2, making it easy to produce defective products.
そのため、上記冷却作用の不均一・による不良品発生を
防ＩＬできるよう、従来の成形品ｌの成形時には、ブロ
ー成形時の型開き前の冷却時間を長くし、各部の冷却を
略均−なものにして対処しており、成形品１の成形に時
間がかかつていた。Therefore, in order to prevent the occurrence of defective products due to the unevenness of the cooling effect mentioned above, when molding conventional molded products, the cooling time before opening the mold during blow molding is lengthened to ensure that each part is cooled approximately evenly. As a result, it took a long time to mold the molded product 1.
本発明は、既述の問題を解決するもので、軟質層が配設
される部位の波打ちを抑えて、成形時間を短縮すること
ができるブロー成形品及びその製造方法を提供すること
を目的とする。The present invention solves the above-mentioned problems, and aims to provide a blow-molded product and a method for manufacturing the same, which can suppress undulation in the area where a soft layer is provided and shorten the molding time. do.
く問題点を解決するための手段〉
本発明に係るブロー成形品は、成形品本体の表面の所定
部位に軟質層を介在させて表皮が一体成形されたブロー
成形品であって、軟質層の成形品本体側の全面に剛性を
有する形状保持板を配設させることによって、既述の問
題を解決するものである。Means for Solving the Problems> The blow molded product according to the present invention is a blow molded product in which a skin is integrally molded with a soft layer interposed at a predetermined portion of the surface of the molded product body, and the soft layer is The above-mentioned problem is solved by disposing a rigid shape-retaining plate on the entire surface of the molded product body.
また、本発明に係るブロー成形品の製造方法は、合成樹
脂製でブロー成形される成形品本体の成形時、成形品本
体成形用のパリソンと金型との間の所定部位に軟質層と
表皮とを介在させてブロー成形し、成形品本体表面の所
定部位に軟質層を介在させて表皮が配設されるブロー成
形品の製造方法において、成形品本体成形時、軟質層の
パリソン側全面に剛性を有する形状保持板を配設させて
成形することによって、既述の問題を解決するものであ
る。In addition, in the method for manufacturing a blow molded product according to the present invention, when molding a blow molded product body made of synthetic resin, a soft layer and a skin layer are provided at a predetermined portion between a parison for molding the molded product body and a mold. In a method for manufacturing a blow molded product, in which a skin is disposed on a predetermined part of the surface of the molded product body with a soft layer interposed therebetween, during molding of the molded product body, the entire surface of the soft layer on the parison side is The above-mentioned problems are solved by disposing and molding a rigid shape-retaining plate.
〈発明の作用争効果〉
本発明に係るブロー成形品及びその製造方法では、成形
品本体成形時、軟質層における成形品本体側の全面に剛
性を有する形状保持板が配設されて成形されることから
、パリソンから成形される成形品本体における軟質層が
配設されている部位と軟質層が配設されていない部位と
で、金型からの冷却作用が相違し、軟質層配設部位が波
打つよう変形しようとしても、形状保持板によってその
波打つ変形が規制され、型開き前の冷却時間を長くしな
くとも、所定形状の成形品を得ることができる。<Operations and Effects of the Invention> In the blow molded product and the manufacturing method thereof according to the present invention, when molding the molded product body, a rigid shape-retaining plate is disposed on the entire surface of the soft layer on the molded product body side. Therefore, the cooling effect from the mold is different between the part where the soft layer is placed and the part where the soft layer is not placed in the main body of the molded product formed from the parison, and the part where the soft layer is placed is different. Even if the molded product tries to deform in a wavy manner, the wavy deformation is regulated by the shape retaining plate, and a molded product having a predetermined shape can be obtained without increasing the cooling time before opening the mold.
したがって、本発明に係るブロー成形品及びその製造方
法では、成形時の冷却時間を短かくして＝ ５−
も軟質層が配設Ｓれる部位の波打ちを抑えることができ
、成形時間を短縮することができて、生産性を向−トさ
せることができる。Therefore, in the blow molded product and the manufacturing method thereof according to the present invention, by shortening the cooling time during molding, it is possible to suppress waviness in the area where the soft layer is disposed, and to shorten the molding time. It is possible to improve productivity.
〈実施例〉 以下、本発明の一実施例を図面に基づいて説明する。<Example> Hereinafter, one embodiment of the present invention will be described based on the drawings.
第１図に実施例の成形品１１の断面図を示すが、この成
形品１１は、下方を開口させ、上方を閉鎖させている箱
形状とし、自動車内装品のコンソールボックスとして使
用されるものである。FIG. 1 shows a cross-sectional view of a molded product 11 according to an embodiment. This molded product 11 has a box shape with an open bottom and a closed top, and is used as a console box for automobile interior parts. be.
この成形品１１は、断面逆Ｕ字形として外周部１２ａと
内周部１２ｂとを備えてＰＰからなる成形品本体１２と
、その外周部１２ａのｔ面の一部に配設させるＰＰから
なる剛性を有する形状保持板２３と、形状保持板２３上
面に配設される発泡ＰＰからなる軟質層１３と、軟質層
１３」二面から成形品本体１２両側面にかけて配設され
軟質層１３より若干硬い軟質ＰＶＣからなる表皮１４と
によって構成されている。This molded product 11 has an inverted U-shaped cross section and has an outer peripheral part 12a and an inner peripheral part 12b, and has a rigid molded product main body 12 made of PP and disposed on a part of the t-plane of the outer peripheral part 12a. a soft layer 13 made of foamed PP disposed on the upper surface of the shape retaining plate 23; The outer skin 14 is made of soft PVC.
なお、表皮１４は、その裏面に成形品本体１２のブロー
成形時、そのパリソン１６の一部が表皮１４の裏面に喰
い込んで、所謂アンカ作用により表皮１４と成形品本体
１２とが接着剤を使用することなく接合されるよう、ウ
ーり加工等を施された合成繊維布や不織布、あるいは発
泡したＰＶＣ、ＰＰ等の多孔質層をその裏面に配置させ
ているこの成形品１１の製造について述べると、表皮１
４の所定部位に接着剤を利用して軟質層１３を貼着させ
るとともに軟質層１３の成形品本体１２側の面となる裏
面全面に接着剤を利用して形状保持板２３を貼着させ、
そして、それらの部材が貼着されている表皮１４を予め
成形品本体１２に配設可能なように所定形状に賦形させ
ておき、金型１７の所定の割型１９にその賦形された表
皮１４を配設させておく（第２・３図参照）。なお、表
皮１４を所定形状に賦形させる際、第２・３図に示す成
形品本体１２成形用の割型１９を利用し、真空成形若し
くはプレス成形を行なって、表皮１４を所定形状に賦形
させてもよい。また、この表皮１４の形成において、薄
板状の軟質ＰＶＣシートを表皮１４となるよう所定形状
に賦形させ、その後、軟質層１３及び形状保持板２３を
所定部位に接着させるようにしてもよい。Note that during blow molding of the molded product main body 12 on the back surface of the skin 14, a part of the parison 16 digs into the back surface of the skin 14, and the surface skin 14 and the molded product main body 12 are bonded with adhesive due to a so-called anchoring action. We will describe the production of this molded article 11, in which a porous layer of synthetic fiber cloth or non-woven fabric treated with wool, etc., or foamed PVC, PP, etc. is placed on the back side so that it can be joined without being used. and epidermis 1
The soft layer 13 is attached to a predetermined portion of 4 using an adhesive, and the shape retaining plate 23 is attached using an adhesive to the entire back surface of the soft layer 13, which is the surface facing the molded product body 12.
The skin 14 to which these members are attached is previously shaped into a predetermined shape so that it can be placed on the molded product main body 12, and the skin 14 is shaped into a predetermined split mold 19 of the mold 17. The epidermis 14 is provided (see Figures 2 and 3). In addition, when shaping the skin 14 into a predetermined shape, vacuum forming or press molding is performed using a split mold 19 for molding the molded product main body 12 shown in FIGS. 2 and 3 to shape the skin 14 into a predetermined shape. You can also shape it. Further, in forming the skin 14, a thin flexible PVC sheet may be shaped into a predetermined shape to form the skin 14, and then the soft layer 13 and the shape-retaining plate 23 may be adhered to predetermined portions.
その後、表皮１４が所定の割型１９に配設されている状
態で、割型１８・１９の間にパリソン１６を押出機１５
から押し出し、第４・５図に示すように、パリソン１６
内にエアを吹き込みつつ、割型１８・１９を閉じさせる
とともにスライドコア２０・２０を移動させて型締めし
、成形品本体１２を成形する。Thereafter, with the skin 14 disposed on a predetermined split mold 19, the parison 16 is passed through an extruder 15 between the split molds 18 and 19.
As shown in Figures 4 and 5, the parison 16
While blowing air into the mold, the split molds 18 and 19 are closed, and the slide cores 20 and 20 are moved and clamped to form the molded product body 12.
そして、所定時間冷却させた後、型を開いて離型させ、
端末部位を処理すれば第１図に示す成形品１１を得るこ
とができる。その際、この成形品１１には、軟質層１３
におけるパリソン１６と当接している裏面側全面に形状
保持板２３が配設されていることから、冷却時、成形品
本体１２の外周部１２ａにおける軟質層１３を配設させ
ている部位が他の部位より割型１９から受ける冷却作用
を不均等なものとしていて、その部位が波打つ変形を生
じさせようとしても、その変形が形状保持板２３により
抑えられ、従来の成形品１と比べて３分程度冷却時間を
短縮しても、不良品を発生させることなく成形できる。After cooling for a predetermined period of time, the mold is opened and released.
By treating the end portion, a molded product 11 shown in FIG. 1 can be obtained. At that time, this molded product 11 has a soft layer 13
Since the shape retaining plate 23 is disposed on the entire back side that is in contact with the parison 16, during cooling, the portion of the outer peripheral portion 12a of the molded product body 12 where the soft layer 13 is disposed is The cooling effect received from the split mold 19 is uneven depending on the part, and even if that part tries to cause undulating deformation, the deformation is suppressed by the shape retaining plate 23, and the molded product 19 can be heated by 3 minutes compared to the conventional molded product 1. Even if the cooling time is shortened to a certain extent, molding can be performed without producing defective products.
なお、この形状保持板２３は、成形品本体１２の成形材
料と同一のものであれば、成形品本体１２成形時に、そ
のパリソン１６が形状保持板２３に溶着し易いことから
、成形時の成形品本体１２の波打ちを抑え易くするとと
もに成形後の成形品本体１２と形状保持板２３とのずれ
も防止できる。ちなみに、形状保持板２３を成形品本体
１２と異種材料の他の合成樹脂板や金属板等に変更する
場合には、その形状保持板に複数の孔を穿設し、成形品
本体１２の成形時、そのパリソン１６をそれらの孔から
軟質層１３に喰い込ませれば、同様の作用を得られる。Note that if this shape-retaining plate 23 is made of the same molding material as the molded product body 12, the parison 16 will be easily welded to the shape-retaining plate 23 during molding of the molded product body 12. Waving of the product body 12 can be easily suppressed, and misalignment between the molded product body 12 and the shape retaining plate 23 after molding can also be prevented. Incidentally, when changing the shape-retaining plate 23 to another synthetic resin plate or metal plate made of a material different from the molded product body 12, a plurality of holes are bored in the shape-retention plate and the molded product body 12 is molded. At this time, the same effect can be obtained by inserting the parison 16 into the soft layer 13 through those holes.
また、軟質層１３として、実施例では、発８ＰＰからな
るものを例示したが、ソフトな感触を得られるならば、
他の樹脂やゴムの発泡体や、布、綿等の材料を使用して
もよい。In addition, as the soft layer 13, in the embodiment, a layer made of 8PP was exemplified, but if a soft feel can be obtained,
Other materials such as resin or rubber foam, cloth, or cotton may also be used.
＝ ９−
さらに、実施例の成形品１１では、成形品本体１２の断
面両側に中空部１２Ａφ１２Ａを設け、断面中央に外周
部１２ ａと内周部１２ｂとが密着する密着部１２Ｂを
設けた形状のものを示したが、勿論、密着部１２Ｂのな
い中空成形品であっても、その軟質層の裏面側に形状保
持板を配設させれば、同様な効果を奏する。= 9- Furthermore, the molded product 11 of the example has a shape in which hollow portions 12Aφ12A are provided on both sides of the cross section of the molded product body 12, and a contact portion 12B is provided in the center of the cross section where the outer peripheral portion 12a and the inner peripheral portion 12b are in close contact with each other. Of course, even if the hollow molded product does not have the contact portion 12B, the same effect can be achieved if a shape retaining plate is provided on the back side of the soft layer.
第１図は本発明の一実施例を示す成形品の断面図、第２
図は同実施例の成形時におけるパリソンを押し出した状
態を示す縦断面図、第３図は同横断面図、第４図は同実
施例の成形時における型閉時の断面図、第５図は同実施
例の成形時におけるスライドコアを移動させた状態を示
す断面図、第６図は従来の成形品の断面図、第７図は従
来例の成形時におけるパリソンを押し出した状態を示す
縦断面図、第８図は同横断面図、第９図は従来例の成形
時における型閉時の断面図、第１０図は従来例の成形時
におけるスライドコアを移動させた状態を示す断面図で
ある。
１拳１１・・・成形品、
２・１２・・・成形品本体、
３・１３・・・軟質層、
４・１４・・・表皮、
６・１６・・・パリソン、
７φ１７・・・金型、
２３・・・形状保持板。
特 許 出 願 人
＝ １１ −
−ＩＯＪＣ’）寸ωト敞
区 蔵、−（’Ｊ
味 桂
第３図
第６図
第４ｙ：ｉ
第７図
第８図Fig. 1 is a sectional view of a molded product showing one embodiment of the present invention, Fig. 2
The figure is a longitudinal cross-sectional view showing the extruded state of the parison during molding of the same example, FIG. 3 is a cross-sectional view of the same, FIG. 4 is a cross-sectional view of the same example when the mold is closed during molding, and FIG. 6 is a cross-sectional view of the conventional molded product, and FIG. 7 is a vertical cross-sectional view of the conventional example showing the parison extruded during molding. 8 is a cross-sectional view of the same, FIG. 9 is a sectional view when the mold is closed during molding of a conventional example, and FIG. 10 is a sectional view showing a state in which the slide core is moved during molding of a conventional example. It is. 1 fist 11... Molded product, 2, 12... Molded product body, 3, 13... Soft layer, 4, 14... Skin, 6, 16... Parison, 7φ17... Mold , 23...Shape retention plate. Patent Applicant = 11 - -IOJC') - (J Aji Katsura Figure 3 Figure 6 Figure 4y:i Figure 7 Figure 8
Claims (1)
表皮が一体成形されたブロー成形品であつて、前記軟質
層の前記成形品本体側の全面に剛性を有する形状保持板
が配設されていることを特徴とするブロー成形品。 ２、合成樹脂製でブロー成形される成形品本体の成形時
、前記成形品本体成形用のパリソンと金型との間の所定
部位に軟質層と表皮とを介在させてブロー成形し、前記
成形品本体表面の所定部位に前記軟質層を介在させて前
記表皮が配設されるブロー成形品の製造方法において、
前記成形品本体成形時、前記軟質層の前記パリソン側全
面に剛性を有する形状保持板を配設させて成形すること
を特徴とするブロー成形品の製造方法。[Scope of Claims] 1. A blow-molded product in which a skin is integrally molded with a soft layer interposed at a predetermined portion of the surface of the molded product body, wherein the soft layer has rigidity on the entire surface of the molded product body side. A blow-molded product characterized by being provided with a shape-retaining plate. 2. When blow molding a molded product body made of synthetic resin, blow molding is performed with a soft layer and a skin interposed at a predetermined portion between the parison for molding the molded product body and the mold, and In a method for manufacturing a blow-molded product, the skin is disposed at a predetermined location on the surface of the product body with the soft layer interposed therebetween,
A method for producing a blow-molded article, characterized in that a rigid shape-retaining plate is disposed on the entire surface of the soft layer on the parison side during molding of the body of the molded article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9866386A JPS62255116A (en) | 1986-04-29 | 1986-04-29 | Blow molded form and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9866386A JPS62255116A (en) | 1986-04-29 | 1986-04-29 | Blow molded form and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62255116A true JPS62255116A (en) | 1987-11-06 |
| JPH0481934B2 JPH0481934B2 (en) | 1992-12-25 |
Family
ID=14225748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9866386A Granted JPS62255116A (en) | 1986-04-29 | 1986-04-29 | Blow molded form and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62255116A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2299576A (en) * | 1995-03-31 | 1996-10-09 | Toyoda Gosei Kk | Skin-covered lid |
| JP2009006529A (en) * | 2007-06-26 | 2009-01-15 | Toppan Printing Co Ltd | Blow molded article and its manufacturing method |
-
1986
- 1986-04-29 JP JP9866386A patent/JPS62255116A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2299576A (en) * | 1995-03-31 | 1996-10-09 | Toyoda Gosei Kk | Skin-covered lid |
| GB2299576B (en) * | 1995-03-31 | 1997-05-21 | Toyoda Gosei Kk | Skin covered lid |
| JP2009006529A (en) * | 2007-06-26 | 2009-01-15 | Toppan Printing Co Ltd | Blow molded article and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0481934B2 (en) | 1992-12-25 |
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