JP2995019B2 - Molding apparatus for foamed molded article with skin and method for molding foamed molded article with skin - Google Patents
Molding apparatus for foamed molded article with skin and method for molding foamed molded article with skinInfo
- Publication number
- JP2995019B2 JP2995019B2 JP9182720A JP18272097A JP2995019B2 JP 2995019 B2 JP2995019 B2 JP 2995019B2 JP 9182720 A JP9182720 A JP 9182720A JP 18272097 A JP18272097 A JP 18272097A JP 2995019 B2 JP2995019 B2 JP 2995019B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- skin
- lower mold
- molding
- foamed
- 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.)
- Expired - Fee Related
Links
- 238000000465 moulding Methods 0.000 title claims description 30
- 238000000034 method Methods 0.000 title claims description 16
- 239000000463 material Substances 0.000 claims description 67
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 239000006260 foam Substances 0.000 claims description 12
- 239000011162 core material Substances 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 230000013011 mating Effects 0.000 claims description 9
- 239000003566 sealing material Substances 0.000 claims description 8
- 229920003002 synthetic resin Polymers 0.000 claims description 8
- 239000000057 synthetic resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009966 trimming Methods 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims description 3
- 239000006261 foam material Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 description 13
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000010097 foam moulding Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000004512 die casting Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1228—Joining preformed parts by the expanding material
- B29C44/1233—Joining preformed parts by the expanding material the preformed parts being supported during expanding
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/68—Release sheets
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/14—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed part being a lining
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は表皮付発泡成形体の
成形装置および表皮付発泡成形体の成形法に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for molding a foamed article with a skin.
【０００２】[0002]
【従来の技術】自動車用アームレストや自動車用シート
クッションのような従来の表皮付発泡成形体は、成形後
にトリミングできるようにやや大きめに裁断した表皮材
を、吸引機能を備えた下型上に載せてその周縁をクラン
プし、次いで、前記下型に吸引圧を作用させて表皮材を
下型の型面に添い引き込み成形したうえ発泡合成樹脂材
料を供給して上型を型合わせしてこの発泡合成樹脂材料
を下型の型面と上型の型面との間で発泡させて表皮付発
泡成形体を成形しているが、前記した吸引圧により表皮
材を下型の型面に添い引き込み成形する時、この引き込
みは均一に発生せずに型形状等により部分的に発生しな
いところができて不均一となるため、クランプ機構をル
ーズクランプ式とするとその圧着部分に十分な余裕をも
たせなければ、表皮材が圧着面から部分的に外れやすく
なり、成形不良を起こす原因となる。この問題を解消す
るためには表皮材を相当な余裕をとった大き目のものと
して、成形後に成形品の周縁からはみ出した部分をトリ
ミングする必要があり、このため、大量の廃棄物を発生
するうえに、表皮材の使用量が大となって製品コストを
押し上げるという問題があった。2. Description of the Related Art A conventional foamed molded article with a skin, such as an armrest for an automobile or a seat cushion for an automobile, is obtained by mounting a slightly cut skin material on a lower mold having a suction function so that it can be trimmed after molding. Then, the peripheral edge is clamped, and then the lower mold is subjected to a suction pressure to draw the skin material into the lower mold surface, draw in the molded material, supply the foamed synthetic resin material and mold the upper mold to form the foam. The synthetic resin material is foamed between the mold surface of the lower mold and the mold surface of the upper mold to form a foam molded article with a skin, but the skin material is drawn into the mold surface of the lower mold by the suction pressure described above. When molding, this pull-in does not occur uniformly, but it does not occur partially due to the shape of the mold, etc., and it becomes non-uniform.Therefore, if the clamp mechanism is a loose clamp type, it is necessary to provide sufficient margin for the crimped part , table Wood tends partially dislodged from the crimping surface, causing causing molding defects. In order to solve this problem, it is necessary to trim the part that protrudes from the peripheral edge of the molded product after molding, by making the skin material a large one with a considerable margin, which generates a large amount of waste. In addition, there has been a problem that the use amount of the skin material is increased and the product cost is increased.
【０００３】[0003]
【発明が解決しようとする課題】本発明が解決しようと
するところは前記したような問題を解決して、成形不良
がないうえに、トリミングを極力なくして製品コストを
低減できる表皮付発泡成形体の成形装置および表皮付発
泡成形体の成形法を提供することを目的とするものであ
る。The object of the present invention is to solve the above-mentioned problems, to eliminate molding defects, to minimize trimming and to reduce the product cost, and to reduce the product cost. It is an object of the present invention to provide a molding apparatus and a method for molding a foam molded article with a skin.
【０００４】[0004]
【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、表皮材を型面に吸引保持する機能を備えた
下型に、そのキャビティ口の形状と略一致する開口を備
えた表皮押さえ用の中間型を介して該開口を通じて下型
のキャビティ内に型面が位置する上型を型合わせ自在と
され、且つ、前記下型と中間型の合わせ面が、表皮材の
端縁の一部のみを不動状態に固定すべく中間型の下面に
形成された凸条とこれに対応させて下型の上面に形成さ
れた凹条とよりなりストッパ部を一部に残してルーズク
ランプ面とされていることを特徴とする表皮付発泡成形
体の成形装置を請求項１に係る発明とし、この請求項１
の発明において、上型の型面に、シール材が周縁に巻装
されたインサート部材を取付けてあるものを請求項２に
係る発明とし、前記した請求項１または２に係る発明に
おいて、下型に表皮材のセット位置表示線を設けたもの
を請求項３の発明とする。また、成形後にトリミングす
る必要がない程度の大きさとなるように予め裁断した表
皮材を、吸引機能を備えた下型に載せたうえ、この下型
のキャビティ口の形状と略一致する開口を備えた表皮押
さえ用の中間型を型合わせして下型との合わせ面間で前
記表皮材の周縁部分のうち一部端縁のみを不動状態に固
定して残部をルーズクランプし、次いで、前記下型に吸
引圧を作用させて表皮材を下型の型面に添い引き込み成
形したうえ発泡合成樹脂材料を供給したうえ、周端にシ
ール材を巻装してあるインサート用芯材を型面に仮保持
させた上型を型合わせし、この発泡合成樹脂材料を下型
の型面と中間型の開口を通じて下型のキャビティ内に位
置される上型の型面との間で発泡させて表皮付発泡成形
体を成形することを特徴とする表皮付発泡成形体の成形
法を請求項４に係る発明とし、この請求項４に係る発明
において、シール材を発泡ウレタン樹脂よりなるものと
する方法を請求項５に係る発明とし、前記した請求項４
または５に係る発明において、表皮材の周縁部分に離型
紙で被覆された接着剤層を形成しておく方法を請求項６
に係る発明とし、この請求項６に係る発明において、接
着剤層として両面テープを用いる方法を請求項７に係る
発明とするものである。According to the present invention, there is provided a lower mold having a function of suction-holding a skin material on a mold surface, the lower mold having an opening substantially matching the shape of a cavity opening. An upper mold having a mold surface positioned in the cavity of the lower mold through the opening through an intermediate mold for covering the skin can be freely mated, and the mating surface of the lower mold and the middle mold is an edge of the skin material. On the lower surface of the intermediate mold to fix only part of the
Formed ridges and correspondingly formed on the upper surface of the lower mold
A molding apparatus for a foamed molded article with a skin, characterized in that the molding apparatus is formed as a loose clamp surface with a concave portion formed and a stopper portion left partially.
In the invention of the above, the sealing material is wound around the periphery of the upper mold surface.
It has been the invention of the Oh shall attach the insert member according to claim 2, in the invention according to claim 1 or 2 and the lower mold to the skin material of claim 3 which is provided a set position display lines The invention. In addition, a skin material cut in advance so as to have a size that does not need to be trimmed after molding is placed on a lower mold having a suction function, and an opening substantially matching the shape of the cavity opening of the lower mold is provided. The intermediate mold for holding the skin is fixed, and only a part of the peripheral portion of the skin material is fixed in an immovable state between the mating surfaces with the lower mold, and the remaining part is loosely clamped. By applying suction pressure to the mold, the skin material is drawn into the lower mold surface, drawn in, molded, supplied with a foamed synthetic resin material, and sealed at the periphery.
Temporary holding of insert core material wound with metal material on mold surface
The molded upper resin is mated, and the foamed synthetic resin material is foamed between the lower mold surface and the upper mold surface located in the cavity of the lower mold through the opening of the intermediate mold to form a foam with a skin. A method for forming a foamed molded article with a skin, characterized by molding a molded article, is defined as the invention according to claim 4, wherein in the invention according to claim 4, the sealing material is made of urethane foam resin. The method according to claim 5 is an invention according to claim 5, and the method according to claim 4
Or in the invention according to 5, it claims a method of previously forming an adhesive layer covered with release paper to the peripheral edge portion of the skin material 6
The invention according to claim 6 is the invention according to claim 6 , wherein the method using a double-sided tape as the adhesive layer is the invention according to claim 7 .
【０００５】[0005]
【発明の実施の形態】次に、本発明の好ましい実施の形
態を図１〜図７に基づいて詳細に説明する。１はアルミ
ダイキャストにより形成した下型であり、この下型１の
キャビティ部１ａは型面に配設されている多数の吸引孔
１ｃによって型内部の真空室１ｂと連通されている。２
は下型１の上面に型合わせして配置される中間型であ
り、この中間型２は下型１と同様アルミダイキャストに
より形成されていて前記下型１のキャビティ口の形状と
略一致する開口２ａが形成され、また、この中間型２の
下端は後記する表皮材４の巻込用の周縁４ａの全面を押
圧する合わせ面とされ、その大部分はルーズクランプ面
２ｂとされ、また、上端は後記する上型７との合わせ面
とされている。なお、前記した開口２ａの開口縁は上広
がり状のテーパとしてあって、上型７の型合わせ時にぶ
つからないようにしてある。さらに、前記した表皮材４
は成形後にトリミングする必要がない程度の大きさとな
るように予め裁断されていて、その材質は軟質塩化ビニ
ル樹脂その他のプラスチックス系シートやファブリック
地が用いられるが、ファブリック地のときは通気性を遮
断するために、内面にフィルムをラミネートしてある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described in detail with reference to FIGS. Reference numeral 1 denotes a lower mold formed by die-casting aluminum. The cavity 1a of the lower mold 1 is communicated with a vacuum chamber 1b inside the mold by a number of suction holes 1c provided on the mold surface. 2
Is an intermediate mold which is arranged on the upper surface of the lower mold 1 so as to be aligned with the upper mold. The intermediate mold 2 is formed by aluminum die casting similarly to the lower mold 1 and substantially matches the shape of the cavity opening of the lower mold 1. An opening 2a is formed, and the lower end of the intermediate mold 2 is a mating surface that presses the entire surface of a peripheral edge 4a for winding the skin material 4, which will be described later, and a large part thereof is a loose clamp surface 2b. The upper end is a mating surface with an upper die 7 described later. The opening edge of the opening 2a is tapered so as to spread upward so that the upper die 7 does not collide with the upper die 7. Further, the above-mentioned skin material 4
Is cut in advance to a size that does not require trimming after molding, and the material is soft vinyl chloride resin or other plastics-based sheets or fabrics. A film is laminated on the inner surface for blocking.
【０００６】５は表皮材４の周縁部分のうち一部端縁を
下型１上に不動状態として固定するためのストッパ部で
あって、図示するストッパ部５は下型１の型開口縁の後
側上面に形成された凹条５ａと、中間型２の開口２ａの
後側下面に形成された凸条５ｂとよりなり、中間型２を
下型１と型合わせした際、凹条５ａと凸条５ｂとは係合
され、下型１の上面に位置されている表皮材４の一部が
ストッパ部５に咬持されて不動状態に固定される。７は
下型１に中間型２を介して型合わせされる上型であり、
この上型７の型面には必要に応じてインサート用芯材８
を装着できるようにしてある。そして、このインサート
用芯材８の周端にはポリウレタン樹脂よりなるシール材
８ａを巻装してあり、発泡成形時にパッド材となる発泡
ウレタン樹脂が漏出せずに発泡ガスのみが排気されるよ
うにして発泡ガスによる成形不良を防止している。な
お、９は表皮材４の厚みを逃がすため、下型１の型合わ
せ面に形成される間隔調整部材、１０は表皮材４のセッ
ト位置表示線であり、該セット位置表示線１０により表
皮材４を正確な位置に配置させることができる。Reference numeral 5 denotes a stopper portion for fixing a part of the peripheral portion of the skin material 4 to the lower mold 1 in an immovable state, and the stopper portion 5 shown in FIG. It is composed of a concave ridge 5a formed on the rear upper surface and a convex ridge 5b formed on the rear lower surface of the opening 2a of the intermediate mold 2. When the intermediate mold 2 is combined with the lower mold 1, the concave ridge 5a is formed. Engagement with the ridges 5b causes a part of the skin material 4 located on the upper surface of the lower mold 1 to be held by the stopper portion 5 and fixed in an immovable state. Reference numeral 7 denotes an upper mold that is matched with the lower mold 1 via the intermediate mold 2,
If necessary, a core material 8 for the insert may be provided on the surface of the upper mold 7.
Can be attached. A sealing material 8a made of a polyurethane resin is wound around the peripheral end of the insert core material 8 so that urethane foam resin serving as a pad material during foam molding does not leak, and only foam gas is exhausted. To prevent molding failure due to foaming gas. Reference numeral 9 denotes an interval adjusting member formed on the mating surface of the lower mold 1 to release the thickness of the skin material 4, and 10 denotes a set position indicating line of the skin material 4. 4 can be arranged at the correct position.
【０００７】このように構成されたものは、図２に示さ
れるように、セット位置表示線１０に合わせて下型１の
キャビティ１ａ内に表皮材４を載せる。このとき、スト
ッパ部５に咬持される表皮材４が基準位置となるように
配置する。次に、中間型２を下型１に型合わせすれば、
下型１と中間型２との合わせ面間で表皮材４の周縁部分
は挟持されることとなるが、このとき、表皮材４の周縁
部分のうち一部端縁のみはストッパ部５すなわち下型１
の凹条５ａと中間型２の凸条５ｂとにより咬持されて不
動状態に固定されるが、表皮材４の周縁部分の残部はル
ーズクランプ面２ｂによって端縁よりやや内側でルーズ
クランプされることとなる。なお、前記した不動状態の
固定部分は成形後において巻込周縁４ａとなる幅を有す
るものである。このような状態で、下型１の真空室１ｂ
に負圧をかけて吸引孔１ｃを通じて表皮材４に吸引圧を
作用させれば、表皮材４は、図３に示されるように、下
型１の型面に添って吸引されることとなる。[0007] As shown in FIG. 2, the skin material 4 is placed in the cavity 1 a of the lower die 1 in accordance with the set position indicating line 10 in the above-described structure. At this time, the skin material 4 held by the stopper portion 5 is arranged so as to be the reference position. Next, if the intermediate mold 2 is matched with the lower mold 1,
The peripheral part of the skin material 4 is sandwiched between the mating surfaces of the lower mold 1 and the intermediate mold 2, but at this time, only a part of the peripheral part of the skin material 4 is the stopper 5, that is, the lower part. Type 1
Of the skin 4 is fixed in an immovable state while being held by the concave ridges 5a and the convex ridges 5b of the intermediate mold 2, but the rest of the peripheral portion of the skin material 4 is loosely clamped slightly inside the edge by the loose clamp surface 2b. It will be. The fixed portion in the immovable state has a width that becomes the winding peripheral edge 4a after molding. In this state, the vacuum chamber 1b of the lower mold 1
When a negative pressure is applied to the skin material 4 through the suction hole 1c to apply a suction pressure, the skin material 4 is sucked along the mold surface of the lower mold 1 as shown in FIG. .
【０００８】このとき、表皮材４の周縁部分のうちの大
部分であるストッパ部５により固定されていない部分
は、ルーズクランプ状態とされているので、中間型２の
押圧力に抗して引き込まれ、皺寄ることなく下型１の型
面に添わせられるが、このルーズクランプ部分は充分な
幅をとってあるので、たとえ、表皮材４の引く量が若干
変動しても、表皮材４が部分的に中間型２による押圧を
解かれることはない。そして、表皮材４が型面に密着さ
れたとき、表皮材４の巻込周縁４ａは下型１の型合わせ
面において中間型２のルーズクランプ面２ｂにはみ出す
ことなく押圧された状態となる。次に、表皮材４内に発
泡ウレタン樹脂原料などの発泡合成樹脂原料を所定量供
給したうえ、図４に示されるように、上型７を中間型２
の上に載せて型合わせすれば、上型７の型面に取り付け
られたインサート用芯材８は中間型２の開口２ａを通じ
て下型１のキャビティ内に位置される。At this time, a portion of the peripheral edge portion of the skin material 4 which is not fixed by the stopper portion 5 is in a loose clamp state, and is pulled in against the pressing force of the intermediate mold 2. Although the loose clamp portion has a sufficient width, even if the amount of the surface material 4 to be pulled slightly fluctuates, the surface material 4 can be attached without being wrinkled. Is not partially released by the intermediate mold 2. Then, when the skin material 4 is brought into close contact with the mold surface, the winding peripheral edge 4a of the skin material 4 is pressed on the mold mating surface of the lower mold 1 without protruding into the loose clamp surface 2b of the intermediate mold 2. Next, a predetermined amount of a foamed synthetic resin material such as a foamed urethane resin material is supplied into the skin material 4 and, as shown in FIG.
When the mold is placed on the mold and the mold is fitted, the insert core material 8 attached to the mold surface of the upper mold 7 is positioned in the cavity of the lower mold 1 through the opening 2 a of the intermediate mold 2.
【０００９】その後は型締して前記した発泡合成樹脂材
料を加熱するなどし常法により中間型２の開口２ａを通
じて下型１のキャビティ内に位置される上型７の型面と
下型１の型面との間で発泡させて表皮付発泡成形体を成
形する。この際、型内で発生する発泡ガスはインサート
芯材８の周縁に取り付けられた発泡ウレタン樹脂よりな
るシール材８ａを通じて排気されることとなる。しかし
て、発泡成形完了後は上型７および中間型２を型開きし
て、発泡成形された成形品を離型する。離型後は成形品
の背面周縁に一体化されているインサート芯材８の周縁
に接着剤を塗布し、その後、成形体の周縁に張出されて
いる巻込周縁４ａを成形体の背面周縁に接着すれば、図
６に示されるような、表皮付成形品が完成することとな
る。Then, the mold surface of the upper mold 7 and the lower mold 1 located in the cavity of the lower mold 1 through the opening 2a of the intermediate mold 2 by a conventional method such as heating the foamed synthetic resin material by clamping the mold. To form a foamed molded article with a skin. At this time, the foaming gas generated in the mold is exhausted through the sealing material 8a made of urethane foam resin attached to the periphery of the insert core material 8. After the completion of the foam molding, the upper mold 7 and the intermediate mold 2 are opened, and the foam molded article is released. After the mold release, an adhesive is applied to the periphery of the insert core material 8 integrated with the back periphery of the molded product, and then the winding periphery 4a protruding from the periphery of the molded product is removed. Then, a molded article with a skin as shown in FIG. 6 is completed.
【００１０】なお、前記好ましい実施の形態では、表皮
材４の巻込周縁４ａを塗布した接着剤により接着した
が、図８に示されるように、表皮材４の巻込周縁４ａに
接着剤層９としての両面テープを接着しておき、発泡成
形後、離型された成形体の巻込周縁４ａに接着されてい
る両面テープとしての接着剤層９から離型紙９ａを剥離
して接着剤層９を成形体の背面周縁に巻き込み圧着すれ
ば、両面テープの露出した粘着剤により巻込周縁４ａは
接着されるので、成形体の周縁に接着剤を塗布する塗布
工程を省略でき、接着剤に含まれる有害な溶剤等による
人体への悪影響をなくすることができる。また、前記好
ましい実施の形態では、表皮材４は下型１の型開口縁に
沿って略一定の巻込周縁をもたせたものとしているが、
縦生地、横生地等生地の性質の違いや、デザイン上、生
地の性質を型形状に合わせることが難しいことがあり、
巻込周縁を正確に設定することができない場合には、若
干、巻込周縁をカッティングすることもあり得ることは
勿論である。さらに、前記好ましい実施の形態では、イ
ンサート芯材８を上型７に取り付けたものとしている
が、インサート芯材８はなくても良いことは勿論であ
る。また、前記好ましい実施の形態では、下型１や中間
型２はアルミダイキャストにより製作しているが、鋳物
による成形や切削あるいは電解加工で製作するなど、材
質や製法は問わないことは勿論である。In the preferred embodiment, the winding edge 4a of the skin material 4 is adhered with the applied adhesive. However, as shown in FIG. 8, an adhesive layer is formed on the winding edge 4a of the skin material 4. A double-sided tape 9 is adhered, and after foam molding, the release paper 9a is peeled off from the adhesive layer 9 as a double-sided tape adhered to the winding periphery 4a of the release molded article. 9 is wound around the rear edge of the molded body and pressed, the wound peripheral edge 4a is adhered by the exposed adhesive of the double-sided tape, so that an application step of applying an adhesive to the periphery of the molded body can be omitted, and The adverse effect on the human body due to the contained harmful solvent or the like can be eliminated. In the preferred embodiment, the skin material 4 has a substantially constant winding periphery along the opening edge of the lower mold 1.
It may be difficult to match the properties of the fabric to the mold shape due to differences in the properties of the fabric such as vertical fabric, horizontal fabric, etc.,
If the winding edge cannot be set accurately, it is a matter of course that the winding edge may be slightly cut. Further, in the preferred embodiment, the insert core 8 is attached to the upper die 7, but it is needless to say that the insert core 8 may not be provided. Further, in the preferred embodiment, the lower mold 1 and the intermediate mold 2 are manufactured by aluminum die-casting. However, it goes without saying that the material and the manufacturing method are not limited, such as manufacturing by molding, cutting, or electrolytic processing. is there.
【００１１】[0011]
【発明の効果】本発明は前記説明によって明らかなよう
に、下型と上型との間に下型のキャビティ口の形状と略
一致する開口を備えた表皮押さえ用の中間型を介在させ
て型締めするようにし、しかも、下型と中間型の合わせ
面を、表皮材の端縁の一部のみを不動状態に固定すべく
中間型の下面に形成された凸条とこれに対応させて下型
の上面に形成された凹条とよりなるストッパ部を一部に
残してルーズクランプ面としてあるから、表皮材の押さ
えが外れることがなくて成形不良を生じることがないう
えに、表皮材の外形形状を製品に被套される表皮材の大
きさと概ね一致させることができ、このため、トリミン
グを極力なくすことができることとなり、廃棄される表
皮材を低減し、大幅なコストダウンを図ることができる
うえに、廃棄処理にかかるコストをも低減できることと
なる。なお、下型にセット位置表示線を設けておけば、
表皮材を正確に配置して固定することができるので、巻
込周縁が不均一になることがない。さらに、本発明方法
においては、周端にシール材を巻装してあるインサート
用芯材が型面に仮保持させた上型を使用したので、発泡
成形時のガス抜きができ成形不良を起こすことを無くす
ることができる。しかも、このシール材を発泡充填され
るパッド材と同系の発泡ポリウレタン樹脂よりなるもの
とすれば、接着性をより一層良好なものとすることがで
きる。また、表皮材の巻込周縁に離型紙で被覆された接
着剤層を形成するようにしておけば、接着剤の塗布工程
を省き溶剤等による作業環境の悪化を防ぐことができ、
また、接着剤層を一般的に販売されている両面テープと
すれば、より安価に巻込周縁の接着処理を行うことがで
きる。従って、本発明は従来の問題点を解消した表皮付
発泡成形体の成形装置および表皮付発泡成形体の成形法
として業界の発展に寄与するところ大なものである。As is apparent from the above description, the present invention interposes an intermediate mold for covering the skin having an opening substantially matching the shape of the cavity opening of the lower mold between the lower mold and the upper mold. In order to fix the mating surface of the lower mold and the intermediate mold, and fix only a part of the edge of the skin material,
The ridge formed on the lower surface of the intermediate mold and the lower mold corresponding to this
Because there as loose clamping surface leaving a stopper ing more and is the formed on the upper surface concave part, on top never cause molding defects without the pressing of the skin material is out, the skin material The outer shape can be made to substantially match the size of the skin material covered by the product, so that trimming can be minimized, the amount of discarded skin material can be reduced, and the cost can be significantly reduced. In addition, the cost for disposal can be reduced. In addition, if a set position display line is provided on the lower mold,
Since the skin material can be accurately arranged and fixed, the winding edge does not become uneven. Further, in the method of the present invention, an insert having a sealing material wound around a peripheral end thereof is provided.
Since the upper mold having the core material temporarily held on the mold surface is used , gas can be vented at the time of foam molding and molding defects can be prevented. Moreover, if the sealing material is made of a foamed polyurethane resin of the same type as the pad material to be foam-filled, the adhesiveness can be further improved. In addition, the outer peripheral edge of the skin material is covered with release paper.
If the adhesive layer is formed, the adhesive application process
To prevent the work environment from deteriorating due to solvents, etc.
Also, the adhesive layer can be used with commonly sold double-sided tape.
By doing so, it is possible to perform the bonding process on the winding edge at a lower cost.
Wear. Accordingly, the present invention greatly contributes to the development of the industry as a molding apparatus for a foamed molded article with a skin and a method for molding a foamed molded article with a skin that has solved the conventional problems.
【図１】本発明装置の好ましい実施の形態を示す一部切
欠斜視図である。FIG. 1 is a partially cutaway perspective view showing a preferred embodiment of the device of the present invention.
【図２】本発明装置の好ましい実施の形態の第１工程を
示す一部切欠斜視図である。FIG. 2 is a partially cutaway perspective view showing a first step of a preferred embodiment of the apparatus of the present invention.
【図３】本発明装置の好ましい実施の形態の第２工程を
示す一部切欠斜視図である。FIG. 3 is a partially cutaway perspective view showing a second step of the preferred embodiment of the apparatus of the present invention.
【図４】本発明装置の好ましい実施の形態の第３工程を
示す一部切欠斜視図である。FIG. 4 is a partially cutaway perspective view showing a third step of the preferred embodiment of the apparatus of the present invention.
【図５】本発明装置の好ましい実施の形態の第４工程を
示す一部切欠斜視図である。FIG. 5 is a partially cutaway perspective view showing a fourth step of the preferred embodiment of the apparatus of the present invention.
【図６】本発明装置により製造された製品の断面図であ
る。FIG. 6 is a sectional view of a product manufactured by the apparatus of the present invention.
【図７】本発明装置の好ましい実施の形態の中間型によ
り表皮材を押圧した状態を示す平面図である。FIG. 7 is a plan view showing a state in which a skin material is pressed by an intermediate mold according to a preferred embodiment of the present invention.
【図８】本発明装置の好ましい実施の形態において両面
テープにより巻込周縁を処理する例を示す断面図であ
る。FIG. 8 is a cross-sectional view showing an example in which a winding edge is processed by a double-sided tape in a preferred embodiment of the apparatus of the present invention.
１ 下型 ２ 中間型 2a 開口 2b ルーズクランプ面 ４ 表皮材 ５ ストッパ部 5a 凸条 5b 凹条 ７ 上型 ８ インサート芯材 8a シール材 ９ 接着剤層 9a 離型紙 DESCRIPTION OF SYMBOLS 1 Lower die 2 Intermediate die 2a Opening 2b Loose clamp surface 4 Skin material 5 Stopper part 5a Convex stripe 5b Concave stripe 7 Upper die 8 Insert core material 8a Seal material 9 Adhesive layer 9a Release paper
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ Ｂ２９Ｋ 105:04 Ｂ２９Ｌ 9:00 31:58 (72)発明者 中山 篤也 愛知県名古屋市守山区小六町10番２号 株式会社豊和化成内 (56)参考文献 特開 平５−162151（ＪＰ，Ａ) 特開 昭63−102914（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B29C 33/12 - 33/18 B29C 39/10 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 6 Identification symbol FI B29K 105: 04 B29L 9:00 31:58 (72) Inventor Atsushi Nakayama 10-2 Korokucho, Moriyama-ku, Nagoya-shi, Aichi, Japan Shares (56) References JP-A-5-162151 (JP, A) JP-A-63-102914 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) B29C 33 / 12-33/18 B29C 39/10
Claims (7)
た下型(1) に、そのキャビティ口の形状と略一致する開
口(2a)を備えた表皮押さえ用の中間型(2) を介して該開
口(2a)を通じて下型(1) のキャビティ内に型面が位置す
る上型(7) を型合わせ自在で、且つ、前記下型(1) と中
間型(2) の合わせ面が、表皮材の端縁の一部のみを不動
状態に固定すべく中間型(2) の下面に形成された凸条(5
a)とこれに対応させて下型(1) の上面に形成された凹条
(5b)とよりなるストッパ部(5)を一部に残してルーズク
ランプ面(2b)とされていることを特徴とする表皮付発泡
成形体の成形装置。1. A lower mold (1) having a function of sucking and holding a skin material on a mold surface, and an intermediate mold (2) for holding a skin having an opening (2a) substantially matching the shape of the cavity opening. The upper mold (7), whose mold surface is located in the cavity of the lower mold (1), through the opening (2a) through the opening (2a), and the lower mold (1) and the intermediate mold (2) can be aligned. The surface has a ridge (5) formed on the lower surface of the intermediate mold (2) to fix only a part of the edge of the skin material in an immobile state.
a) and correspondingly, concave streaks formed on the upper surface of the lower mold (1)
A molding device for a foamed molded article with a skin, characterized in that a loose clamp surface (2b) is formed by leaving a stopper portion (5) consisting of (5b) in a part.
に巻装されたインサート部材(8) を取付けてある請求項
１に記載の表皮付発泡成形体の成形装置。2. A sealing material (8a) is provided on the mold surface of the upper mold (7).
Molding apparatus with skin foam molded article according to claim 1 Ru Oh attach the wound has been insert member (8).
0)を設けてある請求項１または２に記載の表皮付発泡成
形体の成形装置。3. A set position indicating line (1) of the skin material is provided on the lower mold (1).
The molding apparatus for a foamed article with a skin according to claim 1 or 2, further comprising (0).
の大きさとなるように予め裁断した表皮材を、吸引機能
を備えた下型上に載せたうえ、この下型のキャビティ口
の形状と略一致する開口を備えた表皮押さえ用の中間型
を型合わせして下型との合わせ面間で前記表皮材の周縁
部分のうち一部端縁のみを不動状態に固定して残部をル
ーズクランプし、次いで、前記下型に吸引圧を作用させ
て表皮材を下型の型面に添い引き込み成形したうえ発泡
合成樹脂材料を供給したうえ、周端にシール材を巻装し
てあるインサート用芯材を型面に仮保持させた上型を型
合わせし、この発泡合成樹脂材料を下型の型面と中間型
の開口を通じて下型のキャビティ内に位置される上型の
型面との間で発泡させて表皮付発泡成形体を成形するこ
とを特徴とする表皮付発泡成形体の成形法。4. A skin material cut in advance so as to have a size that does not require trimming after molding is placed on a lower mold having a suction function, and substantially conforms to the shape of a cavity opening of the lower mold. An intermediate mold for covering the skin with an opening to be mold-matched, and only a part of the peripheral portion of the skin material is fixed in an immovable state between the mating surfaces with the lower mold, and the remaining portion is loosely clamped, Next, a suction material is applied to the lower mold to apply the skin material to the lower mold surface, draw-mold the foam material, supply the foamed synthetic resin material, and wind a seal material around the peripheral end.
The upper mold temporarily holding the insert core material on the mold surface is aligned, and this foamed synthetic resin material is placed in the cavity of the lower mold through the opening of the lower mold surface and the intermediate mold. A method for molding a foamed article with a skin, characterized in that a foamed article with a skin is molded by foaming with a mold surface.
のとする請求項４に記載の表皮付発泡成形体の成形法。5. A sealing material made of urethane foam resin.
The method for molding a foamed molded article with a skin according to claim 4, wherein
接着剤層を形成しておく請求項４または５に記載の表皮
付発泡成形体の成形法。6. The outer peripheral portion of the skin material is covered with release paper.
The method for molding a foamed article with a skin according to claim 4 or 5, wherein an adhesive layer is formed .
項６に記載の表皮付発泡成形体の成形法。7. The method for molding a foamed article with a skin according to claim 6 , wherein a double-sided tape is used as the adhesive layer .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9182720A JP2995019B2 (en) | 1997-07-08 | 1997-07-08 | Molding apparatus for foamed molded article with skin and method for molding foamed molded article with skin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9182720A JP2995019B2 (en) | 1997-07-08 | 1997-07-08 | Molding apparatus for foamed molded article with skin and method for molding foamed molded article with skin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1119938A JPH1119938A (en) | 1999-01-26 |
| JP2995019B2 true JP2995019B2 (en) | 1999-12-27 |
Family
ID=16123272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9182720A Expired - Fee Related JP2995019B2 (en) | 1997-07-08 | 1997-07-08 | Molding apparatus for foamed molded article with skin and method for molding foamed molded article with skin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2995019B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4186455B2 (en) * | 2001-11-15 | 2008-11-26 | 東洋ゴム工業株式会社 | Manufacturing method of heat insulation panel and form material installation formwork |
| ITVI20030236A1 (en) * | 2003-11-27 | 2005-05-28 | Selle Royal Spa | METHOD FOR THE REALIZATION OF INTEGRAL ELASTIC SUPPORTS, |
| JP4373237B2 (en) * | 2004-02-13 | 2009-11-25 | Ｔｏｗａ株式会社 | Semiconductor chip resin sealing molding method and resin sealing molding die |
| JP2006137015A (en) * | 2004-11-10 | 2006-06-01 | Howa Kasei Co Ltd | Molding method of skinned foam molded product and molding apparatus therefor |
| US7658426B2 (en) | 2007-04-16 | 2010-02-09 | Nissan Motor Co., Ltd. | Foam-molded member having skin and method of manufacturing foam-molded member having skin |
| KR102496568B1 (en) * | 2021-08-27 | 2023-02-06 | 유일고무 주식회사 | Molding device for door glass run forming |
| KR102748089B1 (en) * | 2022-07-05 | 2025-01-02 | 유일고무 주식회사 | Molding device for door glass run forming |
-
1997
- 1997-07-08 JP JP9182720A patent/JP2995019B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1119938A (en) | 1999-01-26 |
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