JPH0263717A - Method for molding plastic hollow body - Google Patents
Method for molding plastic hollow bodyInfo
- Publication number
- JPH0263717A JPH0263717A JP63216081A JP21608188A JPH0263717A JP H0263717 A JPH0263717 A JP H0263717A JP 63216081 A JP63216081 A JP 63216081A JP 21608188 A JP21608188 A JP 21608188A JP H0263717 A JPH0263717 A JP H0263717A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- hollow body
- molded product
- cloth
- molds
- 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
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000004033 plastic Substances 0.000 title claims abstract description 9
- 238000000465 moulding Methods 0.000 title claims description 8
- 239000004744 fabric Substances 0.000 claims abstract description 23
- 238000000071 blow moulding Methods 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 21
- 230000037431 insertion Effects 0.000 claims description 21
- 230000002093 peripheral effect Effects 0.000 abstract description 14
- 230000037303 wrinkles Effects 0.000 abstract description 6
- 238000001125 extrusion Methods 0.000 abstract description 2
- 229920005992 thermoplastic resin Polymers 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/50—Moulds having cutting or deflashing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
Abstract
Description
【発明の詳細な説明】
産業−）；の利用分野
本発明は、プラスデックのブロー成形によって得られる
ブロー成形時に表面に布を貼着したブラしたプラスチッ
ク中空体の成形方法に関オろらのである。[Detailed Description of the Invention] Field of Application of Industry -); The present invention relates to a method for molding a plastic hollow body obtained by blow molding a plastic deck and having a cloth attached to the surface during blow molding. be.
従来の技術
従来、表面に表皮層を形成したプラスデック中空体をブ
ロー成形によって製造する方法としては、特開昭６２−
１４２６２５号公報、または特１：：Ｊ １（イ６２
２５５１１９号公報に記載されているものが知られてい
る。2. Description of the Related Art Conventionally, a method for producing a plus deck hollow body with a skin layer formed on its surface by blow molding is disclosed in Japanese Patent Application Laid-Open No. 1983-1999.
No. 142625, or Special 1::J1 (I62
The one described in Japanese Patent No. 255119 is known.
発明が解決しようとケろ課題
ところで、ｔ１η掲前者の方法にあっては、表皮の周辺
部を裏面側に折り込むので、成形品の裏面の四隅部分で
表皮にシワが発生して、どうしても、美麗に仕−りげる
ことは不可能であるという欠点があった。また、面掲後
省の方法にあっては、ブロー成形後スライドコアで押し
込むので、前者と同様に成形品の四隅部分の表皮がシワ
を形成して、美麗に仕−Ｅげることは不可能であるとい
う欠点をイｊ゛シていた。However, in the above method, the peripheral part of the skin is folded into the back side, so wrinkles occur in the skin at the four corners of the back side of the molded product, making it difficult to maintain its beautiful appearance. The disadvantage was that it was impossible to serve. In addition, in the method of the Ministry of Education, since the slide core is used to push the molded product after blow molding, the skin at the four corners of the molded product may form wrinkles, making it difficult to finish the product beautifully. I was trying to exploit the disadvantage of being possible.
本発明は、このような従来の成形方法における欠点に鑑
み、内部に成形品のキャビティを形成する一対の分割金
型と、キャビティの一部を形成し、かつピンチオフライ
ンを成形品の裏面側に寄せて形成する上下あるいは左右
移動自在の挿入金型とを用いることによって、ブロー成
形時に生じる布の端部を目につかない裏面側に形成する
とともに、表面に貼着された布の周端縁を裏側のピンチ
オフラインまでブロー成形時に折り返し、外観性に優れ
、貼着された布がシワを発生さ仕ることがなく、しかも
布の周端縁が捲れて剥がれることがないプラスチック中
空体を得るためのプラスチック中空体の成形方法を提供
することを目的とするものである。In view of these shortcomings in conventional molding methods, the present invention has been developed to include a pair of split molds that form a cavity for the molded product inside, and a pinch offline that forms a part of the cavity and is placed on the back side of the molded product. By using an insertion mold that can be moved vertically or horizontally, the edges of the fabric produced during blow molding can be formed on the back side where they cannot be seen, and the peripheral edges of the fabric attached to the front side can be removed. To obtain a plastic hollow body that is folded back to the pinch offline on the back side during blow molding, has an excellent appearance, does not cause wrinkles in the attached cloth, and does not cause the peripheral edge of the cloth to roll up and peel off. The object of the present invention is to provide a method for molding a plastic hollow body.
課題を解決するための手段
本発明は、次の手段によってその目的を達成するもので
ある。Means for Solving the Problems The present invention achieves its objects by the following means.
すなわち、その手段は、内部に成形品のキャビティを形
成する一対の分割金型と、キャビティの一部を形成し、
かつピンチオフラインを成形品の金型を合わせて型開き
した他方の分割金型と挿入金型との間に、パリスンとそ
の表面に貼着する布を布が挿入金型側に配置されるよう
にともに垂下し、型締めしてブロー成形した後、挿入金
型を上下あるいは左右に移動させるとともに分割金型を
開き、成形品を離型することを特徴とするプラスデック
中空体の成形方法である。That is, the means includes a pair of split molds that form a cavity for the molded product inside, and a part of the cavity that forms a part of the mold.
Then, place the parison and the cloth to be attached to its surface between the other split mold, which was opened by aligning the mold of the molded product with the pinch offline, and the insertion mold, so that the cloth is placed on the insertion mold side. A method for forming a plus deck hollow body characterized by hanging down together, clamping the mold, blow molding, moving the inserting mold up and down or left and right, opening the split mold, and releasing the molded product. be.
作 用
本発明に係るプラスチック中空体の成形方法によれば、
内部に成形品のキャビティを形成する一対の分割金型と
、キャビティの一部を形成し、かつピンチオフラインを
成形品の裏面側に寄せて形成する上下あるいは左右に移
動自在の挿入金型とを用いるので、型を締めたブロー成
形時には、挿入金型によって成形品の裏面側にピンチオ
フラインが位置して、成形品の裏面側にピンチオフライ
ンが形成されるとともに布の端部が裏面側に形成される
。そして、成形品の表面に貼着された布の周端縁ら成形
品の裏面側のピンチオフラインまでブロー成形時に折り
返されるので、折り返される部分にシワが発生しない。Function: According to the method for molding a plastic hollow body according to the present invention,
A pair of split molds that form a cavity for the molded product inside, and an insertion mold that forms part of the cavity and can be moved vertically or horizontally to form a pinch offline toward the back side of the molded product. Therefore, during blow molding with the mold tightened, a pinch offline is located on the back side of the molded product by the insertion mold, and a pinch offline is formed on the back side of the molded product, and the edges of the cloth are formed on the back side. be done. Since the cloth attached to the surface of the molded article is folded back from the peripheral edge to the pinch line on the back side of the molded article during blow molding, wrinkles do not occur in the folded portion.
なお、成形品の離型時には、まず挿入金型を上下に移動
させ、次いで分割金型を型開いて成形品を取出す。Note that when releasing the molded product, first the insertion mold is moved up and down, and then the split mold is opened to take out the molded product.
実 施 例 本発明の一実施例を図面について説明する。Example An embodiment of the present invention will be described with reference to the drawings.
第１図には本発明に係るプラスチック中空体の成形方法
によって成形された成形品としてパネル状の中空体（自
動車のりャーパーセルシエルフ）が示されている。１は
その表面、２は裏面、３は側面であって、表面ｌと側面
３にはブロー成形時に布４が貼着されており、その布４
の周端縁は裏側２に折り返されている。５はその折り返
された周端縁である。成形品には表面１側の中央部に小
物用の四部６が形成されている。FIG. 1 shows a panel-shaped hollow body (automobile parcel shelf) as a molded product molded by the method for molding a plastic hollow body according to the present invention. 1 is the front surface, 2 is the back surface, and 3 is the side surface, and a cloth 4 is attached to the surface 1 and the side surface 3 during blow molding.
The peripheral edge of is folded back to the back side 2. 5 is the folded peripheral edge. Four parts 6 for small items are formed in the center of the molded product on the surface 1 side.
第２図には、本発明に係る方法の実施に用いる金型が例
示されている。７．７′は一対の分割金型であり、その
内部には成形品のキャビティ８が形成されている。９，
９゛は挿入金型であって、この挿入金型は９．９゛は上
下に２分割され、それぞれ上下に移動自在となっている
。上記挿入金型９．９′は、第３図ないし第５図に示す
ように、型開き方向に平行する而９ａと直交する而９ｂ
を有していて、一方の分割金型７に型合わせした状態で
キャビティ８の−ａ＜を形成し、ピンチオフライン１０
を中空体の裏面２側に寄せる形状をなしている。FIG. 2 illustrates a mold used for carrying out the method according to the invention. 7.7' is a pair of split molds, inside of which a cavity 8 for a molded product is formed. 9,
Reference numeral 9.9 is an insertion mold, and the insertion mold 9.9 is divided into upper and lower halves, each of which is movable vertically. As shown in FIGS. 3 to 5, the insertion molds 9 and 9' are arranged such that a part 9a is parallel to the mold opening direction and a part 9b is perpendicular to the mold opening direction.
The cavity 8 -a
It has a shape in which it is brought closer to the back surface 2 side of the hollow body.
プラスデック中空体のブロー成形時には、押出ヘッド（
図示せず）から押出された熱可塑性プラスチックのパリ
スン１１と、成形品の表面１側に貼着する布４を挿入金
型９．９°が型合わせされた一方の分割金型７側に配置
されるように分割金型７，７゜間に垂下しく第３図）、
型締めしてブロー成形する（第４図）。次いで、ブロー
成形後には、挿入金型９．９°を型開き方向と直交する
方向にそれぞれ」−下に移動させ、分割金型７，７°開
いて成形品の離型を行えば（第５図）、第１図に示すよ
うな表面１から側面３に布４が貼着されたパネル状の中
空体が得られる。When blow molding a Plus Deck hollow body, the extrusion head (
A parison 11 of thermoplastic plastic extruded from a molded article (not shown) and a cloth 4 to be attached to the surface 1 side of the molded product are placed on one split mold 7 side where the insertion mold 9.9° is aligned. (Fig. 3),
The mold is clamped and blow molded (Figure 4). Next, after blow molding, the insert mold 9.9° is moved downward in the direction orthogonal to the mold opening direction, and the split molds are opened 7.7° to release the molded product. 5), a panel-shaped hollow body having cloth 4 adhered from the front surface 1 to the side surface 3 as shown in FIG. 1 is obtained.
上記のように成形された中空体のピンチオフライン１０
は、中空体の裏面２の周辺部に形成され、かつ表面１か
ら側面３にかけて貼着された布４の周端縁５が裏面２の
ピンチオフライン４まで折り返され、裏面２に折り返さ
れた部分は使用上目につかないので、中空体の外観か損
なわれない。しかし、布４の周端縁５は中空体の裏面２
側に折り返されているところから、中空体の裏面２に対
して確実に埋め込まれ、その部分が捲れて剥がれること
がなく、シワを発生させるごともない。なお、ピンチオ
フライン４は、中空体の裏面２側に形成されるので、こ
れを削る仕上げ加工を行わなくてムよい場合が多く、そ
の作業が大幅に簡素化される。Pinch offline of hollow body formed as above 10
is a portion where the peripheral edge 5 of the cloth 4 formed around the back surface 2 of the hollow body and pasted from the front surface 1 to the side surface 3 is folded back to the pinch offline 4 on the back surface 2, and then folded back to the back surface 2. Since it is not visible during use, the appearance of the hollow body is not impaired. However, the peripheral edge 5 of the cloth 4 is connected to the back surface 2 of the hollow body.
Since it is folded back to the side, it is reliably embedded in the back surface 2 of the hollow body, and that part will not be rolled up and peeled off, and there will be no wrinkles. Incidentally, since the pinch offline 4 is formed on the back surface 2 side of the hollow body, there is often no need to perform finishing machining to cut it, and the work is greatly simplified.
上記挿入金型９，９°は油圧ンリンダ等の装置により、
型開き方向と直交する上下方向に２分割するほか、左右
方向の２分割や上下左右に４分割して型開きと同期移動
させることが可能である。補助金型９．９°は、分割金
型７．７′を開いた後、またはそれと同時に開いてらよ
い。The above-mentioned insertion mold 9,9° is inserted by a device such as a hydraulic cylinder.
In addition to dividing into two in the vertical direction perpendicular to the mold opening direction, it is also possible to divide into two in the horizontal direction or into four in the vertical and horizontal directions and move them in synchronization with the mold opening. The auxiliary mold 9.9° may be opened after or simultaneously with the opening of the split mold 7.7'.
発明の・効果
本発明は、面記のように、内部に成形品のキャビティを
形成する一対の分割金型と、キャビティの一部を形成し
、かつピンチオフラインを成形品の裏面側に寄せて形成
する上下あるいは左右に移入
動自在の挿入金型とを用い、−＃の分割金型に挿入金型
を合わせて型開きした他方の分割金型と挿入金型との間
に、パリスンとその表面に貼着する布を布が挿入金型側
に配置されるようにともに重Ｔ−’ Ｌ、型締めしてブ
ロー成形した後、挿入金型を上下あるいは左右に移動さ
せるとともに分割金型を開き、成形品を離型する方法で
あるから、ブロー成形時に生じるピンチオフラインを目
につかない裏面側に形成するととらに、表面に貼着され
た布の周端縁をピンチオフラインまで成形品の裏側まで
折り返し、シワのない外観性に優れた、しから貼着され
た布の周端縁が捲れて剥がれることがないプラスデック
中空体を得るごとができる効果を奏する。ADVANTAGES AND EFFECTS OF THE INVENTION As described above, the present invention includes a pair of split molds that form a cavity for a molded product inside, and a mold that forms a part of the cavity and moves the pinch offline toward the back side of the molded product. Using an insertion mold that can be moved up and down or left and right to form, align the insertion mold with the -# split mold and open the mold. After the cloth to be attached to the surface is placed on the insertion mold side, the mold is clamped and blow molded, and then the insertion mold is moved up and down or left and right, and the split mold is moved. Since this is a method of opening the mold and releasing the molded product, in addition to forming the pinch offline that occurs during blow molding on the back side where it is not visible, the peripheral edge of the cloth attached to the front surface is also formed on the back side of the molded product up to the pinch offline. It is possible to obtain a plus-deck hollow body which is folded up until it is folded up, has an excellent wrinkle-free appearance, and does not have the peripheral edge of the cloth pasted on it rolled up and peeled off.
図面は本発明の一実施例を示し、第１図は成形されたプ
ラスチック中空体の斜視図、第２図は金型の一部を破断
して示す全体斜視図、第３図ないし第５図はそれぞれ成
形工程を示す一部の断面図である。
■ 中空体の表面、２・・・裏面、３・・・側面、４布
、５ ・・その折り返し周端縁、７．７°・・・一対の
分割金型、８・・キャビティ、９．９゛・・・挿入金型
、ｌＯ・・・ピンチオフライン、１１・・パリスンThe drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of a molded plastic hollow body, Fig. 2 is an overall perspective view with a part of the mold cut away, and Figs. 3 to 5. are partial cross-sectional views showing the molding process, respectively. ■ Surface of the hollow body, 2...Back surface, 3...Side surface, 4 Cloth, 5...Folded peripheral edge, 7.7°...Pair of split molds, 8...Cavity, 9. 9゛...Insertion mold, lO...Pinch offline, 11...Parison
Claims (1)
、キャビティの一部を形成し、かつピンチオフラインを
成形品の裏面側に寄せて形成する上下あるいは左右に移
動自在の挿入金型とを用い、一方の分割金型に挿入金型
を合わせて型開きした他方の分割金型と挿入金型との間
に、パリスンとその表面に貼着する布を布が挿入金型側
に配置されるようにともに垂下し、型締めしてブロー成
形した後、挿入金型を上下あるいは左右に移動させると
ともに分割金型を開き、成形品を離型することを特徴と
するプラスチック中空体の成形方法。A pair of split molds that form a cavity for the molded product inside, and an insertion mold that forms part of the cavity and can be moved vertically or horizontally to form a pinch offline toward the back side of the molded product. The parison and the cloth to be attached to its surface are placed on the insertion mold side between the other split mold and the insertion mold, which are opened by aligning the insertion mold with one split mold. A method for molding a plastic hollow body, which comprises hanging down together so that the mold is closed, blow molding is performed, and then moving an insertion mold vertically or horizontally, opening a split mold, and releasing the molded product. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63216081A JPH0622869B2 (en) | 1988-08-30 | 1988-08-30 | Molding method for plastic hollow body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63216081A JPH0622869B2 (en) | 1988-08-30 | 1988-08-30 | Molding method for plastic hollow body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0263717A true JPH0263717A (en) | 1990-03-05 |
| JPH0622869B2 JPH0622869B2 (en) | 1994-03-30 |
Family
ID=16682956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63216081A Expired - Fee Related JPH0622869B2 (en) | 1988-08-30 | 1988-08-30 | Molding method for plastic hollow body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0622869B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003145612A (en) * | 2001-11-13 | 2003-05-20 | Minoru Kasei Kk | Laminating blow-molded article and lamination blow molding machine |
| JP2008155004A (en) * | 2006-12-22 | 2008-07-10 | The Face Shop Korea Co Ltd | Powder compact case |
| US9854870B2 (en) | 2015-04-08 | 2018-01-02 | Nike, Inc. | Method of manufacturing a bladder element with an impression of etched area of mold assembly and article having bladder element with impression |
| US9974360B2 (en) | 2015-04-08 | 2018-05-22 | Nike, Inc. | Method of manufacturing a bladder element with an etched feature and article having a bladder element with an etched feature |
| US10327506B2 (en) | 2015-04-08 | 2019-06-25 | Nike, Inc. | Article with overlay secured to bladder element over image and method of manufacturing the article |
| US10842225B2 (en) | 2015-04-08 | 2020-11-24 | Nike, Inc. | Article including a bladder element with an image and method of manufacturing the article |
-
1988
- 1988-08-30 JP JP63216081A patent/JPH0622869B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003145612A (en) * | 2001-11-13 | 2003-05-20 | Minoru Kasei Kk | Laminating blow-molded article and lamination blow molding machine |
| JP2008155004A (en) * | 2006-12-22 | 2008-07-10 | The Face Shop Korea Co Ltd | Powder compact case |
| US9854870B2 (en) | 2015-04-08 | 2018-01-02 | Nike, Inc. | Method of manufacturing a bladder element with an impression of etched area of mold assembly and article having bladder element with impression |
| US9974360B2 (en) | 2015-04-08 | 2018-05-22 | Nike, Inc. | Method of manufacturing a bladder element with an etched feature and article having a bladder element with an etched feature |
| US10327506B2 (en) | 2015-04-08 | 2019-06-25 | Nike, Inc. | Article with overlay secured to bladder element over image and method of manufacturing the article |
| US10842225B2 (en) | 2015-04-08 | 2020-11-24 | Nike, Inc. | Article including a bladder element with an image and method of manufacturing the article |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0622869B2 (en) | 1994-03-30 |
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