JPS642492B2 - - Google Patents
Info
- Publication number
- JPS642492B2 JPS642492B2 JP18837784A JP18837784A JPS642492B2 JP S642492 B2 JPS642492 B2 JP S642492B2 JP 18837784 A JP18837784 A JP 18837784A JP 18837784 A JP18837784 A JP 18837784A JP S642492 B2 JPS642492 B2 JP S642492B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- decorative
- cavity
- decorative plate
- molded product
- 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
Links
- 238000000465 moulding Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000012778 molding material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 235000021189 garnishes Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003825 pressing Methods 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、装飾凸部が成形品表面と面一にし
て露出される装飾板をインサートとして成形する
成形品の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for manufacturing a molded product, in which a decorative plate in which a decorative convex portion is exposed flush with the surface of the molded product is molded as an insert.
（従来の技術）
従来、この種の成形品６は、第９図に示すよう
に、型閉じ時のキヤビテイ４の隙間ｈと同一か若
しくは若干厚い装飾板７をインサートとして可動
型３にセツトし、可動型３を固定型２へ移動させ
て型閉じし、装飾板７の装飾凸部７ａを固定型２
のキヤビテイ用型面２ａに当接若しくは圧接させ
て、ゲート５から成形材料Ｍをキヤビテイ４内へ
注入して成形していた。(Prior Art) Conventionally, this type of molded product 6 has been produced by setting a decorative plate 7 as an insert in the movable mold 3, which is the same as or slightly thicker than the gap h of the cavity 4 when the mold is closed, as shown in FIG. , the movable mold 3 is moved to the fixed mold 2 to close the mold, and the decorative convex portion 7a of the decorative plate 7 is moved to the fixed mold 2.
The molding material M was injected into the cavity 4 through the gate 5 and molded by contacting or pressing against the mold surface 2a for the cavity.
（発明が解決しようとする問題点）
しかし、金型１における固定型２のキヤビテイ
用型面２ａや可動型３のキヤビテイ用型面３ａの
面精度を良好にすることは難しく、装飾板７の厚
みに対して金型１キヤビテイ４の隙間ｈが大きく
なる部位があると、この部位で成形時に装飾凸部
７ａ表面に成形材料Ｍが回ることとなり、成形さ
れた成形品６表面では装飾凸部７ａが太くなつた
り細くなつたりしていた。また、装飾板７の厚み
に対してキヤビテイ４の隙間ｈが小さくなり過ぎ
る部位があると、その部位で成形時に装飾凸部７
ａがつぶれることとなり、成形された成形品６表
面では装飾凸部７ａが太くなつたり細くなつたり
して、成形中に金型１におけるキヤビテイ用型面
２ａ，３ａを盛つたり削つたりして対処する必要
があり、キヤビテイ用型面２ａ，３ａを盛つたり
削つたりして装飾凸部７ａの見切りを良好にして
いた。(Problems to be Solved by the Invention) However, it is difficult to improve the surface accuracy of the cavity mold surface 2a of the fixed mold 2 and the cavity mold surface 3a of the movable mold 3 in the mold 1. If there is a part where the gap h of the mold 1 cavity 4 is large with respect to the thickness, the molding material M will flow around the surface of the decorative convex part 7a during molding in this part, and the decorative convex part will be formed on the surface of the molded product 6. 7a was getting thicker and thinner. In addition, if there is a part where the gap h of the cavity 4 is too small with respect to the thickness of the decorative plate 7, the decorative convex part 7 will be removed at that part during molding.
a is crushed, and the decorative convex portion 7a becomes thicker or thinner on the surface of the molded product 6, and the cavity surfaces 2a and 3a of the mold 1 are raised or scraped during molding. Therefore, the mold surfaces 2a and 3a for the cavity were raised or shaved to improve the separation of the decorative convex portion 7a.
（問題点を解決するための手段）
この発明は、装飾凸部が成形品表面と面一にし
て露出される装飾板をインサートとして成形する
成形品の製造方法において、装飾板裏面の所定位
置に突起を設け、この突起は装飾板がセツトされ
る成形金型のキヤビテイにおける隙間より装飾板
の厚みを厚くしており、装飾板を金型にセツトし
て型閉じした際に突起をつぶして装飾凸部をキヤ
ビテイ用型面に均一に圧接させて成形するように
して、既述の問題点を解決するものである。(Means for Solving the Problems) The present invention provides a method for manufacturing a molded product in which a decorative plate in which a decorative convex portion is exposed flush with the surface of the molded product is molded as an insert. A protrusion is provided, and this protrusion makes the thickness of the decorative plate thicker than the gap in the cavity of the molding mold into which the decorative plate is set.When the decorative plate is set in the mold and the mold is closed, the protrusion is crushed and decorated. The above-mentioned problems are solved by uniformly press-contacting the convex portion to the cavity mold surface during molding.
（発明の作用・効果）
この発明に係るこの種のインサート成形品の製
造方法は、装飾板を金型にセツトして型閉じした
際に、装飾板裏面の所定位置に形成された突起が
つぶれ、装飾板の装飾凸部をキヤビテイ用型面に
均一に圧接させるため、金型のキヤビテイ用型面
の面精度が良好でなくとも、装飾板裏面の突起が
その誤差を吸収し、キヤビテイ用型面を盛つたり
削つたりしなくとも装飾凸部の見切りが良好な成
形品を得ることができる。(Operations and Effects of the Invention) In the method for manufacturing this type of insert molded product according to the present invention, when the decorative plate is set in the mold and the mold is closed, the protrusions formed at predetermined positions on the back side of the decorative plate are crushed. In order to uniformly press the decorative protrusions of the decorative board against the cavity mold surface, even if the surface precision of the cavity mold surface of the mold is not good, the protrusions on the back of the decorative board absorb the error, and the cavity mold It is possible to obtain a molded product with good separation of decorative convex portions without having to raise or shave the surface.
（実施例）
実施例で製造する成形品１６は、自動車等の車
体に取付けられるガーニツシユであり、装飾板１
７の装飾凸部１７ａを成形品１６表面と面一にし
て露出させている（第６図参照）。(Example) The molded product 16 manufactured in the example is a garnish that is attached to the body of a car or the like, and the decorative plate 1
The decorative convex portions 17a of No. 7 are exposed flush with the surface of the molded product 16 (see FIG. 6).
装飾板１７は、第４図・第５図に示すように、
表面に「Ｔ」の文字を装飾凸部１７ａとして突出
させる例えば白色のABS・AES・AAS・PP等の
合成樹脂材料から形成されている。装飾板１７裏
面には、装飾凸部１７ａ裏面側の部位に複数の突
起１７ｂが突設されている。これらの突起１７ｂ
は装飾凸部１７ａよりつぶれ易い形状に形成され
ている。 The decorative plate 17, as shown in FIGS. 4 and 5,
It is made of a white synthetic resin material such as ABS, AES, AAS, PP, etc., and has the letter "T" protruding from its surface as a decorative convex portion 17a. On the back surface of the decorative plate 17, a plurality of protrusions 17b are provided protrudingly from a portion on the back surface side of the decorative convex portion 17a. These protrusions 17b
is formed in a shape that is more easily crushed than the decorative convex portion 17a.
そして、これらの突起１７ｂが形成されて装飾
板１７は、その厚みＨを装飾板１７がセツトされ
る成形金型１１のキヤビテイ１４の隙間h0より
大きくしている。ちなみに、突起１７ｂの高さを
除いた装飾板１７の厚みh1は型閉じ時のキヤビ
テイ１４の隙間h0より小さくなる。なお、１７
ｃは、成形金型１１に装飾板１７をセツトする際
使用される可動型１３のセツトピン１３ｂに対応
するセツト用孔である。 These protrusions 17b are formed so that the thickness H of the decorative plate 17 is greater than the gap h0 between the cavity 14 of the molding die 11 in which the decorative plate 17 is set. Incidentally, the thickness h1 of the decorative plate 17 excluding the height of the protrusion 17b is smaller than the gap h0 between the cavity 14 when the mold is closed. In addition, 17
C is a setting hole corresponding to a setting pin 13b of the movable mold 13 used when setting the decorative plate 17 in the molding die 11.
成形時使用する成形金型１１は、従来と同様
に、第１〜３図に示すように、固定型１２と可動
型１３とからなり、型閉じ時所定形状となるキヤ
ビテイ１４を備え、キヤビテイ１４には射出機か
らの成形材料Ｍをキヤビテイ１４内へ注入できる
ゲート１５が連結されており、可動型１３には所
定位置にセツトピン１３ｂが突設されている。 As shown in FIGS. 1 to 3, the molding die 11 used during molding is made up of a fixed mold 12 and a movable mold 13, and has a cavity 14 that assumes a predetermined shape when the mold is closed. A gate 15 through which molding material M from an injection machine can be injected into the cavity 14 is connected to the movable mold 13, and a set pin 13b is protruded from a predetermined position on the movable mold 13.
つぎに、実施例の成形品１６の製造について述
べる。 Next, the production of the molded product 16 of the example will be described.
まず、セツト用孔１７ｃへセツトピン１３ｂを
挿入して、可動型１３へ装飾板１７をセツトする
（第１図参照）。その際、突起１７ｂは可動型１３
のキヤビテイ用型面１３ａに当接している。 First, the decorative plate 17 is set on the movable mold 13 by inserting the setting pin 13b into the setting hole 17c (see FIG. 1). At that time, the protrusion 17b is attached to the movable mold 13
It is in contact with the cavity mold surface 13a.
そして、可動型１３を固定型１２側へ移動させ
て金型１１を閉じる（第２図参照）。その際、装
飾板１７の厚みＨが型閉じ時の金型１１のキヤビ
テイ１４における隙間h0より大きいため、装飾
板１７の装飾凸部１７ａが固定型１２のキヤビテ
イ用型面１２ａに当接し、そしそ、可動型１３の
キヤビテイ用型面１３ａに当接している突起１７
ｂが、徐々につぶれていき、キヤビテイ用型面１
２ａ，１３ａの面精度が良好でなくともその誤差
が突起１７ｂの変形に吸収され、装飾凸部１７ａ
を均一に固定型キヤビテイ用型面１２ａへ圧接さ
せていく。ちなみに、実施例のものでは、突起１
７ｂの高さを0.5mmとし、つぶれ量を0.3mm程度と
している。 Then, the movable mold 13 is moved toward the fixed mold 12 and the mold 11 is closed (see FIG. 2). At this time, since the thickness H of the decorative plate 17 is larger than the gap h0 in the cavity 14 of the mold 11 when the mold is closed, the decorative convex portion 17a of the decorative plate 17 comes into contact with the cavity mold surface 12a of the stationary mold 12. The protrusion 17 that is in contact with the cavity mold surface 13a of the movable mold 13
b gradually collapses, mold surface 1 for cavity
Even if the surface precision of 2a and 13a is not good, the error is absorbed by the deformation of the protrusion 17b, and the decorative protrusion 17a
is uniformly pressed against the fixed mold cavity mold surface 12a. By the way, in the example, protrusion 1
The height of 7b is 0.5 mm, and the amount of crushing is approximately 0.3 mm.
その後、ゲート１５からキヤビテイ１４内へ例
えば黒色のABS・AES・AAS・PP等の合成樹脂
材料を注入して成形し（第３図参照）、型開き後
離型させれば、装飾凸部１７ａの見切りが良好な
成形品１６を得ることができる。 After that, a black synthetic resin material such as ABS, AES, AAS, PP, etc. is injected into the cavity 14 from the gate 15 and molded (see Fig. 3), and when the mold is opened and released, the decorative convex portion 17a A molded product 16 with good separation can be obtained.
なお、実施例では、装飾板１７の突起１７ｂと
して装飾凸部１７ａの裏面側の部位に形成したも
のを示したが、突起１７ｂを設ける位置は、型閉
じ時に、突起１７ｂがつぶれて装飾凸部１７ａを
金型のキヤビテイ用型面へ均一に圧接できれば、
装飾凸部１７ａの裏面側の部位でなくとも、若干
離れた部位でも良い。 In addition, in the embodiment, the protrusion 17b of the decorative plate 17 was formed on the back side of the decorative convex part 17a, but the position where the protrusion 17b is provided is such that when the mold is closed, the protrusion 17b is crushed and the decorative convex part is formed. If 17a can be uniformly pressed against the cavity surface of the mold,
It does not have to be a part on the back side of the decorative convex part 17a, but may be a part slightly away from it.
また、実施例では、装飾板１７の突起１７ｂの
形状として略円錐状としたものを示したが、勿
論、型閉じ時に、装飾凸部１７ａがつぶれず、装
飾凸部１７ａよりつぶれ易い形状であれば、第７
図・第８図に示すような、三角柱状、角柱状等の
種々の形状のものでもよい。 Further, in the embodiment, the shape of the protrusion 17b of the decorative plate 17 is approximately conical, but of course, the shape of the protrusion 17b of the decorative plate 17 may be such that the protrusion 17a does not collapse and is more easily crushed than the protrusion 17a when the mold is closed. 7th
It may be of various shapes such as a triangular prism shape or a prismatic shape as shown in FIG. 8.
なお、実施例では、装飾板１７の突起１７ｂと
して５つ形成したものを示したが、金型１１のキ
ヤビテイ用型面１２ａ，１３ａの面精度が悪く、
突起１７ｂが５つ程度では良好な成形品を得るこ
とができない場合には、突起の数を増やしたりあ
るいは高さを高くして対処する。そして、そのよ
うな場合には、装飾板自体を成形する金型のキヤ
ビテイ用型面を削れば良く、その作業は、インサ
ート成形品の裏側部の部位に位置する装飾板の裏
面の突起を形成するための作業であり、しかも、
その突起はインサート成形品の成形時につぶれて
しまうものであり、厳密な寸法精度が要求される
訳ではないので、作業を容易かつ簡単に行なうこ
とができる。 In addition, in the embodiment, five protrusions 17b were formed on the decorative plate 17, but the surface accuracy of the cavity mold surfaces 12a and 13a of the mold 11 was poor;
If a good molded product cannot be obtained with about five protrusions 17b, the number of protrusions 17b may be increased or the height may be increased. In such a case, it is sufficient to shave the cavity mold surface of the mold for forming the decorative board itself, and this work involves forming the protrusion on the back side of the decorative board located on the back side of the insert molded product. It is a work to do, and moreover,
The protrusions are crushed during molding of the insert molded product, and strict dimensional accuracy is not required, so the work can be done easily and simply.
第１図・第２図・第３図はこの発明の一実施例
の製造工程を順に示す金型の断面図、第４図・第
５図は同実施例に使用する装飾板のそれぞれ表面
と裏面とを示す斜視図、第６図は同実施例により
製造した成形品の斜視図、第７図・第８図は装飾
板に形成する突起の他の例を示すそれぞれ斜視
図、第９図は従来の成形品の製造時を示す金型の
断面図である。
１，１１……金型、２ａ，３ａ，１２ａ，１３
ａ……キヤビテイ用型面、４，１４……キヤビテ
イ、６，１６……成形品、１７，１７……装飾
板、７ａ，１７ａ……装飾凸部、１７ｂ……突
起。
Figures 1, 2, and 3 are cross-sectional views of a mold showing the manufacturing process of an embodiment of the present invention, and Figures 4 and 5 show the respective surfaces of a decorative plate used in the embodiment. FIG. 6 is a perspective view of a molded product manufactured according to the same example, FIGS. 7 and 8 are perspective views showing other examples of protrusions formed on the decorative plate, and FIG. 9 FIG. 1 is a cross-sectional view of a mold during production of a conventional molded product. 1, 11...Mold, 2a, 3a, 12a, 13
a...Mold surface for cavity, 4, 14... Cavity, 6, 16... Molded product, 17, 17... Decorative plate, 7a, 17a... Decorative convex portion, 17b... Protrusion.
Claims (1)
る装飾板をインサートとして成形する成形品の製
造方法において、前記装飾板裏面の所定位置に前
記装飾板がセツトされる成形金型のキヤビテイに
おける隙間より前記装飾板の厚みが厚くなる突起
を設け、前記装飾板を前記金型にセツトして型閉
じした際に前記突起をつぶして前記装飾凸部をキ
ヤビテイ用型面に均一に圧接させて成形すること
を特徴とするインサート成形品の製造方法。1. In a method for manufacturing a molded product in which a decorative plate whose decorative convex portion is exposed flush with the surface of the molded product is molded as an insert, a cavity of a molding die in which the decorative plate is set at a predetermined position on the back side of the decorative plate is provided. Protrusions are provided so that the thickness of the decorative plate becomes thicker than the gaps, and when the decorative plate is set in the mold and the mold is closed, the protrusions are crushed to uniformly press the decorative protrusions against the cavity mold surface. A method for manufacturing an insert molded product, characterized by molding it using a method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18837784A JPS6164413A (en) | 1984-09-07 | 1984-09-07 | Manufacture of insert form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18837784A JPS6164413A (en) | 1984-09-07 | 1984-09-07 | Manufacture of insert form |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6164413A JPS6164413A (en) | 1986-04-02 |
| JPS642492B2 true JPS642492B2 (en) | 1989-01-17 |
Family
ID=16222550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18837784A Granted JPS6164413A (en) | 1984-09-07 | 1984-09-07 | Manufacture of insert form |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6164413A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101023825B1 (en) * | 2010-06-08 | 2011-03-22 | 이판규 | Back of chair with ornamental plate |
| JP5707532B1 (en) * | 2014-11-26 | 2015-04-30 | 株式会社山岡製作所 | Molded substrate |
-
1984
- 1984-09-07 JP JP18837784A patent/JPS6164413A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6164413A (en) | 1986-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4911873A (en) | Terminal-treated extrusion and the method of terminal treatment therefor | |
| JP2000210978A (en) | Production of injection-molded product | |
| CA1130070A (en) | Process for preparing composite parts | |
| JPS642492B2 (en) | ||
| JP3039977B2 (en) | Mold for molding | |
| JPH0138656B2 (en) | ||
| JPS58116139A (en) | Manufacture of molded synthetic resin product having different color distribution | |
| JPS6037772B2 (en) | composite mold | |
| JPH03193320A (en) | Injection molding die | |
| JPS6249844B2 (en) | ||
| JPS591785Y2 (en) | Injection mold for rib molding | |
| JPH0114853B2 (en) | ||
| JPH047890B2 (en) | ||
| JPH023698B2 (en) | ||
| JPH07256705A (en) | Injection mold | |
| JPS6366646B2 (en) | ||
| JPS6123373Y2 (en) | ||
| JPS583844A (en) | Manufacture of molded product having core material | |
| JPH10296751A (en) | Molding tool | |
| JP2536448Y2 (en) | Mold for molding | |
| JPS6155851B2 (en) | ||
| JP2002240090A (en) | In-mold coating molding method | |
| JPH0452026Y2 (en) | ||
| JPH0357458Y2 (en) | ||
| JPS5826107Y2 (en) | Product retention pin |