JPH02145313A - Molding equipment - Google Patents
Molding equipmentInfo
- Publication number
- JPH02145313A JPH02145313A JP30024888A JP30024888A JPH02145313A JP H02145313 A JPH02145313 A JP H02145313A JP 30024888 A JP30024888 A JP 30024888A JP 30024888 A JP30024888 A JP 30024888A JP H02145313 A JPH02145313 A JP H02145313A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- skin material
- cavity
- protrusion
- push
- 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
- 238000000465 moulding Methods 0.000 title claims description 31
- 239000000463 material Substances 0.000 claims abstract description 86
- 229920003002 synthetic resin Polymers 0.000 claims description 9
- 239000000057 synthetic resin Substances 0.000 claims description 9
- 230000037303 wrinkles Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 102100020999 Argininosuccinate synthase Human genes 0.000 description 1
- 101000784014 Homo sapiens Argininosuccinate synthase Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010107 reaction injection moulding Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、表皮材を凸面側に備えた合成樹脂製の成形体
を成形する成形装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a molding apparatus for molding a synthetic resin molded body having a skin material on the convex side.
（従来の伎術）
表皮材を凸面側に備えた合成樹脂製の成形体を成形する
際には、−殻内には、第６図ないし第８図に示すような
成型装置を用い、第６図に示すように、加熱したシート
状の表皮材Ｓをキャビティ型１のキャビティ凹部２を覆
うようにしてキャビティ凹部２の周囲の型分割面３の上
に乗せ、第７図に示すように、コア型４をキャビティ型
１に下降して型締し、この後、キャビティ型１の主ヤビ
ティ凹部２に設けられた真空吸引孔５から負圧をかけて
、第８図に示すように、表皮材Ｓをキャビティ凹部２の
内面に密着させ、この状態で、コア型４のコア凸部６に
設けられたゲート７から合成樹脂を注入している。(Traditional Kijutsu) When molding a synthetic resin molded body with a skin material on the convex side, a molding device as shown in Figures 6 to 8 is used inside the shell. As shown in FIG. 6, a heated sheet-like skin material S is placed on the mold dividing surface 3 around the cavity recess 2 so as to cover the cavity recess 2 of the cavity mold 1, and as shown in FIG. , the core mold 4 is lowered into the cavity mold 1 and clamped, and then negative pressure is applied from the vacuum suction hole 5 provided in the main cavity recess 2 of the cavity mold 1, as shown in FIG. The skin material S is brought into close contact with the inner surface of the cavity recess 2, and in this state, synthetic resin is injected through the gate 7 provided on the core protrusion 6 of the core mold 4.
しかしながら、この方法の場合、型締が完了するまで、
つまり、表皮材Ｓがキャビティ型１の型分割面３とコア
型４の型分割面８とに挟持されるまで、表皮材Ｓが自由
に移動できるため、コア型４のコア凸部６がキャビティ
型１のキャビティ凹部２に入込むのにしたがって、表皮
材Ｓがコア凸部６によってキャビティ凹部２に移動する
が、この移動性は一定となり、調整の余地が無い。However, with this method, until mold clamping is completed,
In other words, since the skin material S can freely move until it is sandwiched between the mold dividing surface 3 of the cavity mold 1 and the mold dividing surface 8 of the core mold 4, the core convex part 6 of the core mold 4 As the skin material S enters the cavity recess 2 of the mold 1, the skin material S moves into the cavity recess 2 by the core projection 6, but this movement is constant and there is no room for adjustment.
したがって、表皮材Ｓの性状や成形体の形状や成形条件
等によって、表皮材Ｓの移動壁が少なすぎる場合には、
真空吸着による表皮材Ｓの引伸し量が多くなるので、成
形体の表皮材Ｓのしぼ流れや薄肉化さらに熱雰囲気下で
の収縮の問題が発生し、表皮材Ｓの移動量が多すぎる場
合には、真空吸着による表皮材Ｓの引伸し量が少なくな
るので、成形体のコーナ一部の表皮材Ｓにしわが発生す
るという問題がある。Therefore, if the moving wall of the skin material S is too small due to the properties of the skin material S, the shape of the molded product, molding conditions, etc.,
Since the amount of stretching of the skin material S due to vacuum adsorption increases, problems such as shrinkage and thinning of the skin material S of the molded body, as well as shrinkage in a hot atmosphere occur, and if the amount of movement of the skin material S is too large, Since the amount of stretching of the skin material S due to vacuum suction is reduced, there is a problem that wrinkles occur in the skin material S at a part of the corner of the molded body.
これに対して、表皮材Ｓのキャビティ凹部２に対する移
動−を調節できる方法として、第９図ないし第１１図に
示すような成型ｖ４ｒｔ、つまり、第６図ないし第８図
に示した成型装置において、コア型４の型分割面８にコ
ア凸部６を囲むようにして囲壁状の押付は突部１１をエ
アシリンダ１２によって出没可能に設けた成型装置を用
い、第９図に示すように、加熱した表皮材Ｓをキャビテ
ィ型１の型分割面３の上に乗せてから、コア型４をキャ
ビティ型１に下降し、４１締が完了するまでの間に、適
当なタイミングで、第１０図に示すように、コア型４の
型分割面８から押付は突部１１をキャビティ型１の型分
割面３に向かって突出させ、押付は突部９で表皮材Ｓを
キャビティ型１の型分割面３に押付け、この状態から、
真空吸引孔５から吸引しながら、エアシリンダ１２をフ
リーにした状態で、コア型４をキャビティ型１に下降し
て、第１１図に示すように、型締と表皮材Ｓの密着をす
ると、押付は突部１１で表皮材Ｓをキャビティ型１の型
分割面３に押付けた第１０図の状態からは表皮材Ｓの移
動が行なわれないので、押付は突部１１を突出させるタ
イミングによって、表皮材Ｓの移動量を少なくする方に
調節することができる。On the other hand, as a method that can adjust the movement of the skin material S relative to the cavity recess 2, the molding v4rt as shown in FIGS. 9 to 11, that is, the molding apparatus shown in FIGS. , a surrounding wall-like pressing was performed on the mold dividing surface 8 of the core mold 4 so as to surround the core protrusion 6 using a molding device in which the protrusion 11 was provided so as to be retractable by an air cylinder 12, and heated as shown in FIG. After the skin material S is placed on the mold dividing surface 3 of the cavity mold 1, the core mold 4 is lowered into the cavity mold 1, and at an appropriate timing until the completion of tightening 41, as shown in FIG. As shown in FIG. 2, pressing from the mold dividing surface 8 of the core mold 4 causes the protrusion 11 to protrude toward the mold dividing surface 3 of the cavity mold 1, and pressing the skin material S with the protrusion 9 to the mold dividing surface 3 of the cavity mold 1. From this state,
While sucking from the vacuum suction hole 5, the core mold 4 is lowered into the cavity mold 1 with the air cylinder 12 free, and as shown in FIG. 11, when the mold clamping and the skin material S are brought into close contact, Since the skin material S is not moved from the state shown in FIG. 10 in which the skin material S is pressed against the mold dividing surface 3 of the cavity mold 1 by the protrusion 11, the pressing is performed depending on the timing at which the protrusion 11 is made to protrude. The amount of movement of the skin material S can be adjusted to be smaller.
したがって、この方法の揚台、そのままでは表皮材Ｓの
移動量が多すぎる場合に、表皮材Ｓの移動量を少なくす
ることができるので、成形体のコーナ一部の表皮材Ｓに
しわが発生するのを防止することができるが、表皮材Ｓ
の移動量が少なすぎる場合には、表皮材Ｓの移動量を多
くすることができないので、成形体の表皮材Ｓのしぼ流
れや薄肉化ざらに熱雰囲気下での収縮の問題が発生する
。Therefore, if the lifting platform of this method moves too much of the skin material S as it is, the amount of movement of the skin material S can be reduced, so wrinkles will occur in the skin material S at some corners of the molded body. However, the surface material S
If the amount of movement is too small, it is not possible to increase the amount of movement of the skin material S, which causes problems such as shrinkage of the skin material S of the molded body, thinning, and shrinkage in a hot atmosphere.
（発明が解決しようとする課題）
上述したように、表皮材を凸面側に備えた合成樹脂製の
成形体を成形する場合、従来は、型締に際しての表皮材
の移ｖＪ１を多くできないため、成形体の表皮材のしぼ
流れや薄肉化さらに熱雰囲気下での収縮の問題が発生し
ていた。(Problems to be Solved by the Invention) As described above, when molding a synthetic resin molded body with a skin material on the convex side, conventionally, the movement of the skin material during mold clamping cannot be increased, so There have been problems with the skin material of the molded body becoming wrinkled, thinned, and shrinking in a hot atmosphere.
本発明は、このような点に鑑みなされたもので、表皮材
の移動量を多くすることができるようにすることを目的
とするものである。The present invention was devised in view of these points, and an object of the present invention is to make it possible to increase the amount of movement of the skin material.
（発明の構成）
（ｉｌｆｆｌを解決するための手段）
本発明は、表皮材Ｓを凸面側に備えた合成樹！＋１！！
Ｊの成形体を成形する成形装四に関するものであって、
上記表皮材Ｓに対する押上げ突部２１ａ。(Structure of the invention) (Means for solving ilffl) The present invention is a synthetic tree with a skin material S on the convex side! +1! !
It relates to a molding device for molding a molded product of J,
A protrusion 21a for pushing up the skin material S.
２１ｂを型分割面３に出没可能に設けたキャビティ型１
と、このキャビティ型１の押上げ突部２１８゜２１ｂの
外側に位置して上記表皮材Ｓに対する押付は突部１１を
型分割面８に出没可能に設けたコア型４とを備えたもの
であり、とくに、請求項２の発明は、キャビティ型１の
押上げ突部２１ｂに対する凹部２３をコアＩ￥！４の型
分割面８に形成したものである。Cavity mold 1 in which 21b is provided so as to be retractable from the mold dividing surface 3
The core mold 4 is located outside the push-up protrusion 218° 21b of the cavity mold 1 and has a protrusion 11 for pressing against the skin material S so as to be retractable from the mold dividing surface 8. In particular, in the invention of claim 2, the recess 23 for the push-up protrusion 21b of the cavity mold 1 is formed into the core I\! It is formed on the mold dividing surface 8 of No. 4.
（作用）
本発明の成形ｉｗは、キャビティ１！１の型分割面３の
上に乗せた表皮材Ｓを押上げ突部２１８゜２１ｂで押上
げることによって、表皮材Ｓに弛み代を作り、この押上
げられて形成された弛み代の部分の外側部の表皮材Ｓを
押付は突部１１でキャビティ型１の型分割面３に押付け
ることによって、表皮材Ｓの弛み代の外側部を固定し、
キャビティ型１の型分割面３に押上げ突部２１ａ 、
２１ｂを没入させることにより、表皮材Ｓの弛み代がキ
ャビティ型１のキャビティ凹部２に移動できるようにす
るものであり、とくに、請求項２の発明は、キャビティ
凹部２の深さが深い部分等、つまり、表皮材Ｓの移動を
とくに多くする必要がある部分等において、コア型４の
型分割面８の凹部２３に押上げ突部２１ｂを受入れるこ
とにより、押上げ突部２１ｂの突出長さを確保して、表
皮材Ｓの弛み代を多くすることができるものである。(Function) In the molding iw of the present invention, a slack allowance is created in the skin material S by pushing up the skin material S placed on the mold dividing surface 3 of the cavity 1!1 with the push-up protrusion 218° 21b. The skin material S on the outside of the slack portion formed by this pushing up is pressed against the mold dividing surface 3 of the cavity mold 1 with the protrusion 11. fixed,
A push-up protrusion 21a on the mold dividing surface 3 of the cavity mold 1,
By immersing 21b, the looseness of the skin material S can be moved into the cavity recess 2 of the cavity mold 1. In particular, the invention of claim 2 is suitable for the deep part of the cavity recess 2, etc. In other words, in areas where it is necessary to particularly increase the movement of the skin material S, by receiving the push-up protrusion 21b in the recess 23 of the mold dividing surface 8 of the core mold 4, the protrusion length of the push-up protrusion 21b can be reduced. It is possible to ensure this and increase the amount of slack in the skin material S.
（実施例）
本発明−成形装置の一実施例を第１図ないし第５図を参
照して説明する。(Embodiment) An embodiment of a molding apparatus according to the present invention will be described with reference to FIGS. 1 to 5.
なお、この実施例の成形ｖｔＭは、先に第６図ないし第
８図に示した成型装置及び第９図ないし第１１図に示し
た成型装置と共通する部分が多いので、同一の部分には
同一の符号を付して説明を省略する。The molding vtM of this embodiment has many parts in common with the molding apparatus shown in FIGS. 6 to 8 and the molding apparatus shown in FIGS. 9 to 11, so the same parts are The same reference numerals are used to omit the explanation.
この実施例の成形装置は、第９Ｉ！Ｉないし第１１図に
示した成！Ｓ！装歓において、コアＩ！！：！４の押付
は突部１１の内側に位置するようにして、キャビティ型
１の型分割面３に複数でキャビティ凹部２を囲む囲壁状
の押上げ突部２１ａ 、 ２１ｂをエアシリンダ２２ａ
、 ２２ｂによって出没可能に設け、キャビティ凹部
２の深さが深い部分に沿った押上げ突部２１ｂに対する
凹部２３をコア型４の型分割面８に形成し、押上げ突部
２１ｂを動かすエアシリンダ２２ｂにストロークの長い
ものを用いたものである。The molding apparatus of this embodiment is the 9th I! The formations shown in Figures I to 11! S! Core I! ! :! 4, a plurality of pushing-up protrusions 21a and 21b surrounding the cavity recess 2 are placed on the mold dividing surface 3 of the cavity mold 1 with an air cylinder 22a so as to be located inside the protrusion 11.
, 22b, a recess 23 for the push-up protrusion 21b along the deep portion of the cavity recess 2 is formed in the mold dividing surface 8 of the core mold 4, and an air cylinder for moving the push-up protrusion 21b. 22b has a long stroke.
なお、２５はコア型４の取付板、２６はゲート７を合成
樹［Ｉ注入機に連結する取付孔、２７はキャビティ型１
の取付板、２８は複数の真空吸引孔５を真空ポンプに連
結する空間である。In addition, 25 is a mounting plate for the core mold 4, 26 is a mounting hole for connecting the gate 7 to the synthetic resin [I injection machine, and 27 is a mounting plate for the cavity mold 1.
The mounting plate 28 is a space for connecting the plurality of vacuum suction holes 5 to a vacuum pump.
そうして、表皮材Ｓを凸面側に備えた合成樹［１製の成
形体を成形する際には１、まず、第１図に示すように、
コア型４をキャビティ型１から４−分に離し、押付は突
部１１と押上げ突部２１ａ 、 ２１ｂをそれぞれの型
分割面８．３に没入させた状態で、加熱したシート状の
表皮Ｉｓをキャビティ型１のキャビティ凹部２を覆うよ
うにしてキャビティ四部２の周囲の型分割面３の上に乗
せる。Then, when molding a molded article made of synthetic wood [1] with the skin material S on the convex side, first, as shown in Fig. 1,
The core mold 4 is separated from the cavity mold 1 by 4 minutes, and the heated sheet-like skin Is is pressed while the protrusion 11 and the push-up protrusions 21a and 21b are immersed in the respective mold dividing surfaces 8.3. is placed on the mold dividing surface 3 around the four cavity parts 2 so as to cover the cavity recess 2 of the cavity mold 1.
つぎに、コア型４をキャビティ型１に下降して型締を開
始し、第２図に示すように、コア型４のコア突部６の最
下点ａがこの部分の外側に位置するキャビティ型１の押
上げ突部２１ｂの突出位詔ｂ（第３図）よりも下の位置
まで移動したら（望ましくはコア型４のコア突部６の最
下点ａがキャビティ型１の型分割面３よりも下の位置ま
で移動したら）、第３図に示すように、押上げ突部２１
８゜２１ｂを突出させて表皮Ｉ４Ｓの周辺部を押上げる
ことによって、表皮材Ｓに弛み代を作り、この押上げら
れて形成された弛み代の部分の外側部の表皮材Ｓを押付
は突部１１でキャビティ型１の型分割面３に押付けるこ
とによって、表皮材Ｓの弛み代の外ｍｓを固定する。Next, the core mold 4 is lowered into the cavity mold 1 and mold clamping is started, and as shown in FIG. When the push-up protrusion 21b of the mold 1 moves to a position below the protruding position b (FIG. 3) (preferably, the lowest point a of the core protrusion 6 of the core mold 4 is at the mold dividing surface of the cavity mold 1). 3), as shown in FIG.
By protruding 8° 21b and pushing up the peripheral part of the skin I4S, a slack margin is created in the skin material S, and the skin material S on the outside of the slack margin formed by this pushing up is pressed and pushed up. By pressing the part 11 against the mold dividing surface 3 of the cavity mold 1, the outer ms of the slack of the skin material S is fixed.
なお、ここで、キャビティ凹部２の深さが深い部分、つ
まり、表皮材Ｓの移動をとくに多くする必要がある部分
に対しては、コア型４の型分割面８の凹部２３に押上げ
突部２１ｂを受入れることにより、押上げ突部２１ｂの
突出長さを確保し、表皮材Ｓの弛みを多くしである。Here, for the deep part of the cavity recess 2, that is, the part where it is necessary to particularly increase the movement of the skin material S, a push-up protrusion is inserted into the recess 23 of the mold dividing surface 8 of the core mold 4. By receiving the portion 21b, the protrusion length of the push-up protrusion 21b is ensured, and the slack of the skin material S is increased.
つぎに、第４図に示すように、キャビティ型１の型分割
面３に押上げ突部２１ａ 、 ２１ｂを没入させること
により、表皮材Ｓの弛んだ部分をキャビティ型１のキャ
ビティ凹部２に移動させ、キャビティ型１のキャビティ
凹部２の真空吸引孔５により表皮材Ｓを吸着して、表皮
材Ｓをキャビティ凹部２の内面に密着させる。Next, as shown in FIG. 4, by immersing the push-up protrusions 21a and 21b into the mold dividing surface 3 of the cavity mold 1, the loosened part of the skin material S is moved into the cavity recess 2 of the cavity mold 1. Then, the skin material S is adsorbed by the vacuum suction hole 5 of the cavity recess 2 of the cavity mold 1, and the skin material S is brought into close contact with the inner surface of the cavity recess 2.
ついで、エアシリンダ１２をフリーにした状態で、コア
型４をキャビティ型１に下降して型締を継続し、第５図
に示すように、型締が完了した状態で、コア型４のゲー
ト７から合成樹脂を注入し、合成Ｉｌ脂が硬化したら、
コア型４を上昇し、型開きして出来た成形体を外す。Next, with the air cylinder 12 free, the core mold 4 is lowered into the cavity mold 1 to continue mold clamping, and as shown in FIG. 5, when the mold clamping is completed, the gate of the core mold 4 is Inject the synthetic resin from step 7, and once the synthetic resin has hardened,
The core mold 4 is lifted up, the mold is opened, and the formed body is removed.
このようにして出来た成形体は、型締の際に表皮材Ｓを
弛ませることにより、キャビティ型１のキャビティ凹部
２に対する表皮材Ｓの移動量を多くできるので、成形体
の表皮材Ｓのしぼ流れや薄肉化さらに熱雰囲気下での収
縮を防止することができ、しかも、キャビデイ凹部２の
深さが深い部分、つまり、表皮材Ｓの移動をとくに多く
する必要がある部分に対しては、コア型４の型分割面８
の凹部２３に押上げ突部２１ｂを受入れることにより、
押上げ突部２１ｂの突出長さを確保し、表皮材Ｓの弛み
を多くして移動量を多く確保しであるので、部分的な肉
厚の変化が少なくなり、しぼ乱れも少なくなる。In the molded body made in this way, by loosening the skin material S during mold clamping, the amount of movement of the skin material S relative to the cavity recess 2 of the cavity mold 1 can be increased. It is possible to prevent wrinkle flow, thinning, and shrinkage in a hot atmosphere, and is suitable for areas where the cavity recess 2 is deep, that is, areas where it is necessary to particularly increase the movement of the skin material S. , mold dividing surface 8 of core mold 4
By receiving the push-up protrusion 21b into the recess 23,
Since the projecting length of the push-up protrusion 21b is secured and the skin material S is made more slack to ensure a large amount of movement, local changes in wall thickness are reduced and wrinkle irregularities are also reduced.
そして、第３図に示すように、押上げ突部２１ａ 、
２１ｂを突出させて表皮材Ｓの周辺部を押上げ、押上げ
られた部分の外側部の表皮材Ｓを押付は突部１１でキャ
ビティ型１の型分割面３に押付ける際の、コア型４の高
さによって、表皮材Ｓの弛み代を変えることができるの
で、キャビティ型１のキャビティ凹部２に対する表皮材
Ｓの移動量を調節することができる。As shown in FIG. 3, the push-up protrusion 21a,
21b to push up the peripheral part of the skin material S, and press the skin material S on the outside of the pushed up part against the mold dividing surface 3 of the cavity mold 1 with the protrusion 11. Since the slack amount of the skin material S can be changed depending on the height of the mold 1, the amount of movement of the skin material S relative to the cavity recess 2 of the cavity mold 1 can be adjusted.
また、この成形装置において、押上げ突部２１ａ 、
２１ｂを使用しないで、押付は突部１１だけを使用する
と、第９図ないし第１１図に示した成型装置と同様に、
キャビティ型１のキャビティ凹部２に対する表皮材Ｓの
移動量を少なくする方に調節することができ、さらに、
押上げ突部２１ａ。Moreover, in this molding device, the push-up protrusion 21a,
21b is not used and only the protrusion 11 is used for pressing, similar to the molding apparatus shown in FIGS. 9 to 11,
The amount of movement of the skin material S relative to the cavity recess 2 of the cavity mold 1 can be adjusted to be smaller, and further,
Push-up protrusion 21a.
２１ｂ及び押付は突部１１の両方を使用しないと、第６
図ないし第８図に示した成型装置と同様に、表皮材Ｓの
移動量が一定となり、したがって、表皮材Ｓの移動量を
自由に増減することができ、最適の状態で、表皮材Ｓを
備えた成形体を成型することができる。If both the protrusion 21b and the pressing part 11 are not used, the sixth
Similar to the molding apparatus shown in Figures 8 through 8, the amount of movement of the skin material S is constant, and therefore the amount of movement of the skin material S can be freely increased or decreased. A molded article can be molded.
なお、本発明の成形装置で成型する成形体の表皮ｖｉＳ
の素材トシテハ、ＰＶＣ１ＰＶＣ／ＡＳＳ１熱可塑性エ
ラストマー等があり、これらの素材だけで表皮材Ｓを構
成する他、発泡層やクロスと組合わせて表皮材Ｓを構成
することもでき、さらに、成形体もＰＰ、ＰＰ複合材、
ＡＢＳ等の射出成形によるもの、ウレタン、ガラス１ｌ
ＩＮ強化ウレタン等の反応射出成形によるものを対象と
することができる。In addition, the skin viS of the molded body molded by the molding apparatus of the present invention
There are materials such as Toshiteha, PVC1PVC/ASS1 thermoplastic elastomer, etc., and in addition to configuring the skin material S with these materials alone, it can also be combined with a foam layer or cloth to configure the skin material S. Furthermore, molded products can also be used. PP, PP composite material,
Injection molded materials such as ABS, urethane, glass 1l
Products made by reaction injection molding, such as IN-reinforced urethane, can be used.
上述したように、本発明によれば、表皮材を凸面側に備
えた合成樹脂製の成形体を成形する場合、キャビティ凹
部に対する表皮材の移動量を多くすることができるため
、成形体の表皮材のしぼ流れや薄肉化さらに熱雰囲気下
での収縮を防止することができ、とくに、請求項２の発
明では、キャビティ凹部に対する表皮材の移動量をより
一層多くすることができ、部分的に表皮材の移！ＪＪ
ａｔに変化を持たせることも可能なため、成形体の表皮
材の部分的な肉厚の変化が少なくすることができ、しは
乱れも少なくすることができ、さらに、場合によっては
、押上げ突部を使用しないことにより、キャビティ凹部
に対する表皮材の移動量を少なくすることができるため
、成形体の表皮材にしわ発生を防止することもできる。As described above, according to the present invention, when molding a synthetic resin molded body with a skin material on the convex side, the amount of movement of the skin material relative to the cavity recess can be increased, so that the skin of the molded body It is possible to prevent the material from shrinking, thinning, and shrinking in a hot atmosphere. In particular, in the invention of claim 2, the amount of movement of the skin material relative to the cavity recess can be further increased, and it is possible to prevent the material from shrinking in a hot atmosphere. Transfer of skin material! J.J.
Since it is possible to vary the at, it is possible to reduce local changes in the wall thickness of the skin material of the molded body, and also to reduce disturbances. By not using the protrusion, it is possible to reduce the amount of movement of the skin material relative to the cavity recess, and therefore it is also possible to prevent wrinkles from forming in the skin material of the molded article.
第１図ないし第５図は本発明の成形装置の一実施例の工
程順の縦断面図、第６図ないし第８図は従来の成形装Ｖ
の工程順の縦断面図、第９図ないし第１１図は他の従来
の成形装置の工程順の縦断面図である。
Ｓ・・表皮材、１・・キャビティ型、３・・型分割面、
４・・コア型、８・・型分割面、１１・・押付は突部、
２１ａ 、 ２１ｂ・・押上げ突部。1 to 5 are longitudinal cross-sectional views of the process order of an embodiment of the molding apparatus of the present invention, and FIGS. 6 to 8 are longitudinal sectional views of a conventional molding apparatus V.
FIGS. 9 to 11 are vertical cross-sectional views of other conventional molding apparatuses in the order of steps. S...Skin material, 1...Cavity mold, 3...Mold dividing surface,
4. Core mold, 8. Mold dividing surface, 11. Pressing is protrusion,
21a, 21b... Push-up protrusions.
Claims (2)
形する成形装置であつて、 上記表皮材に対する押上げ突部を型分割面に出没可能に
設けたキャビティ型と、このキャビティ型の押上げ突部
の外側に位置して上記表皮材に対する押付け突部を型分
割面に出没可能に設けたコア型とを備えたことを特徴と
する成形装置。(1) A molding device for molding a synthetic resin molded body having a skin material on the convex side, which comprises: a cavity mold in which a protrusion for pushing up the skin material is provided so as to be retractable from the mold dividing surface; 1. A molding device comprising: a core mold having a pressing projection against the skin material located outside the pushing-up projection of the mold so as to be retractable from a mold dividing surface.
の型分割面に形成したことを特徴とする請求項１に記載
の成形装置。(2) The molding apparatus according to claim 1, characterized in that a recess for the push-up protrusion of the cavity mold is formed in the mold dividing surface of the core mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30024888A JP2610323B2 (en) | 1988-11-28 | 1988-11-28 | Molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30024888A JP2610323B2 (en) | 1988-11-28 | 1988-11-28 | Molding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02145313A true JPH02145313A (en) | 1990-06-04 |
| JP2610323B2 JP2610323B2 (en) | 1997-05-14 |
Family
ID=17882495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30024888A Expired - Fee Related JP2610323B2 (en) | 1988-11-28 | 1988-11-28 | Molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2610323B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06315950A (en) * | 1993-04-23 | 1994-11-15 | Dainippon Printing Co Ltd | Simultaneous injection molding and in-mold decorating method and device thereof |
| JPH07205209A (en) * | 1994-01-07 | 1995-08-08 | Ikuyo:Kk | Mold structure for laminate molding and laminate molding method |
| JP2017056633A (en) * | 2015-09-16 | 2017-03-23 | 豊田合成株式会社 | Manufacturing method of decorative molded article |
-
1988
- 1988-11-28 JP JP30024888A patent/JP2610323B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06315950A (en) * | 1993-04-23 | 1994-11-15 | Dainippon Printing Co Ltd | Simultaneous injection molding and in-mold decorating method and device thereof |
| JPH07205209A (en) * | 1994-01-07 | 1995-08-08 | Ikuyo:Kk | Mold structure for laminate molding and laminate molding method |
| JP2017056633A (en) * | 2015-09-16 | 2017-03-23 | 豊田合成株式会社 | Manufacturing method of decorative molded article |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2610323B2 (en) | 1997-05-14 |
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