JPH047892B2 - - Google Patents
Info
- Publication number
- JPH047892B2 JPH047892B2 JP61131577A JP13157786A JPH047892B2 JP H047892 B2 JPH047892 B2 JP H047892B2 JP 61131577 A JP61131577 A JP 61131577A JP 13157786 A JP13157786 A JP 13157786A JP H047892 B2 JPH047892 B2 JP H047892B2
- Authority
- JP
- Japan
- Prior art keywords
- molded product
- ejecting
- filling
- mold
- injection molding
- 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 - Lifetime
Links
- 239000012778 molding material Substances 0.000 claims description 20
- 238000001746 injection moulding Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000000465 moulding Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明の射出成形装置は、突き出しピンの突き
出しにより成形品の離型を行なう射出成形装置に
関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The injection molding apparatus of the present invention relates to an injection molding apparatus that releases a molded product by ejecting an ejector pin.
（従来の技術）
従来の射出成形装置としては、第４図に示され
ているようなものが知られている。(Prior Art) As a conventional injection molding apparatus, one shown in FIG. 4 is known.
この従来装置は、固定型０３に対し、成形材充
填用間隙０２を介して可動型０１が配置され、該
可動型０１には、成形材充填用間隙０２への成形
材充填により成形された成形品０４を可動型０１
から突き出す突き出しピン０５が設けられ、該突
き出しピン０５の先端の突き出し面０６が成形品
０４の傾斜面に沿つた滑らかな面に形成されてい
る。 In this conventional device, a movable mold 01 is arranged with respect to a fixed mold 03 through a gap 02 for filling the molding material, and the movable mold 01 has a molded material formed by filling the molding material into the gap 02 for filling the molding material. Product 04 is movable type 01
An ejection pin 05 is provided that protrudes from the molded product 04, and a protrusion surface 06 at the tip of the ejection pin 05 is formed into a smooth surface along the slope of the molded product 04.
（発明が解決しようとする問題点）
しかしながら、このような従来装置にあつて
は、突き出しピンは突き出し時に成形品の傾斜面
に沿つて滑り易いため、成形品の離型抵抗が大き
い場合には、突き出しピンが滑つて離型がうまく
いかずに、成形品を突き出したり、突き抜けたり
する恐れがあつた。(Problem to be Solved by the Invention) However, in such a conventional device, the ejection pin easily slides along the slope of the molded product during ejection, so if the molded product has high mold release resistance, There was a risk that the ejector pin would slip and the mold release would not be successful, causing the molded product to eject or break through.
（問題点を解決するための手段）
本発明は、上述のような問題点を解決すること
を目的として成されたもので、この目的達成のた
めに本発明では、相対する傾斜面を有する成形品
を射出成形する為の装置であつて、固定型と可動
型とを有し、固定型に対し、成形材充填用間隙を
介して可動型が配置され、該可動型には、成形材
充填用間隙への成形材充填により成形された成形
品を可動型から突き出す突き出しピンが設けら
れ、該突き出しピン先端の突き出し面が成形品の
傾斜面に沿つて形成されている射出成形装置にお
いて、前記突き出しピンの突き出し面に、突き出
しによる成形品との滑りを防止する形成させ、１
対の突き出しピンを成形品の相対する傾斜面に設
けさせた。(Means for Solving the Problems) The present invention has been made for the purpose of solving the above-mentioned problems. This is an apparatus for injection molding products, and has a fixed mold and a movable mold. In the injection molding apparatus, an ejector pin is provided for ejecting a molded product formed by filling a molding material into a molding gap from a movable mold, and the ejector pin has an ejecting surface formed along an inclined surface of the molded product. The ejection surface of the ejection pin is formed to prevent slippage with the molded product due to ejection, 1
A pair of ejector pins were provided on opposing inclined surfaces of the molded article.
（作用）
従つて、本発明の射出成形装置では、突き出し
ピン先端の突き出し面に、引掛部を形成させるこ
とにより、突き出しピンの突き出しによる突き出
し面と成形品との滑りを防止できる手段としたた
めに、成形品の離型を行なうことができる。(Function) Therefore, in the injection molding apparatus of the present invention, by forming a hook portion on the ejecting surface of the tip of the ejecting pin, it is possible to prevent slippage between the ejecting surface and the molded product due to ejecting the ejecting pin. , the molded product can be released from the mold.
又、１対の突き出しピンを成形品の相対する傾
斜面に設けたことにより、成形品が薄肉であつて
も可動型からバランスよく離型させることができ
る。 Further, by providing a pair of ejector pins on opposing inclined surfaces of the molded product, even if the molded product is thin, it can be released from the movable mold in a well-balanced manner.
（実施例）
以下、本発明の実施例を図面により詳述する。
尚、この実施例を述べるにあたつて、軒樋に取り
付けられる集水器１を成形する射出成形装置を例
にとつて説明する。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
In describing this embodiment, an injection molding apparatus for molding a water collector 1 to be attached to an eaves gutter will be taken as an example.
まず、第１図〜第３図に示す実施例についてそ
の構成を説明する。 First, the configuration of the embodiment shown in FIGS. 1 to 3 will be explained.
本実施例の射出成形装置は、第１図に示すよう
に、１対の突き出しピン１０，１０が設けられた
可動型２０と、スプル３０が設けられた固定型４
０と、を主要な構成要素としている。 As shown in FIG. 1, the injection molding apparatus of this embodiment includes a movable mold 20 provided with a pair of ejection pins 10, 10, and a fixed mold 4 provided with a sprue 30.
0 and are the main components.
可動型２０と固定型４０とは、成形材充填用間
隙５０を介して配置されており、可動型２０で集
水器１の内面を形成すると共に、固定型４０で集
水器１の外面を形成する。 The movable mold 20 and the fixed mold 40 are arranged with a forming material filling gap 50 in between, and the movable mold 20 forms the inner surface of the water collector 1, and the fixed mold 40 forms the outer surface of the water collector 1. Form.
尚、集水器１は、側面全体が上方に拡開したラ
ツパ形状をしている。 Incidentally, the water collector 1 has a lattice shape in which the entire side surface is expanded upward.
突き出しピン１０は、成形材充填用間隙５０へ
の成形材充填により成形された集水器１を、集水
器１の側面に接触する先端の突き出し面１１で突
き出して離型させるもので、固定型４０に対し上
下動可能に設けられている。 The ejection pin 10 is used to eject and release the water collector 1 formed by filling the molding material into the molding material filling gap 50 with the protrusion surface 11 at the tip that contacts the side surface of the water collector 1, and is fixed. It is provided so as to be movable up and down relative to the mold 40.
この突き出しピン１０の突き出し面１１は、第
３図に示すように、集水器１の側面に沿つた形状
に形成され、かつ、突き出しによる集水器１との
滑りを防止するために断面Ｌ形の引掛溝１２が２
本形成されている。 As shown in FIG. 3, the protruding surface 11 of the ejecting pin 10 is formed in a shape that follows the side surface of the water collector 1, and has a cross section L in order to prevent slippage with the water collector 1 due to protrusion. The shaped hook groove 12 is 2
The book is formed.
スプル３０は、成形材充填用間隙５０に成形材
を充填するものでノズル３２を介して成形材充填
用間隙５０と連通している。 The sprue 30 is used to fill the molding material filling gap 50 with the molding material, and communicates with the molding material filling gap 50 via the nozzle 32 .
尚、成形材としては、塩化ビニル樹脂，ABS
樹脂，ポリオレフイン樹脂，ポリアミド樹脂等の
熱可塑性の合成樹脂が主に考えられる。 In addition, as a molding material, vinyl chloride resin, ABS
Mainly considered are thermoplastic synthetic resins such as resin, polyolefin resin, and polyamide resin.
次に実施例の作用を説明する。 Next, the operation of the embodiment will be explained.
本発明の射出成形装置による成形工程について
説明する。 The molding process using the injection molding apparatus of the present invention will be explained.
成形は、まず、可動型２０と固定型４０との型
締から行ない、次に、成形材充填用間隙５０に成
形材を充填する。この成形材充填時、成形材は、
突き出しピン１０の引掛溝１２にも充填される。 Molding is performed by first clamping the movable mold 20 and the fixed mold 40, and then filling the molding material filling gap 50 with the molding material. When filling this molding material, the molding material is
The hooking groove 12 of the ejector pin 10 is also filled.
成形材充填完了後、成形材充填用間隙５０内の
成形材を冷却により固化する。 After the filling of the molding material is completed, the molding material in the molding material filling gap 50 is solidified by cooling.
そして、固定型４０を可動型２０から離して可
動型２０に嵌つている集水器１を突き出しピン１
０の突き出しにより離型する（第２図参照）。こ
の際、突き出し面１１に形成された引掛溝１２と
集水器１に形成された引掛凸部２とは嵌合状態に
なつているために、突き出しピン１０は滑ること
なく確実に集水器１を突き出して可動型２０から
離型させる。このようにして集水器１を射出成形
装置から取り出して成形を終了する。 Then, the fixed mold 40 is separated from the movable mold 20, the water collector 1 fitted in the movable mold 20 is pushed out, and the pin 1 is pushed out.
The mold is released by ejection of 0 (see Figure 2). At this time, since the hooking groove 12 formed on the protruding surface 11 and the hooking convex portion 2 formed on the water collector 1 are in a fitted state, the ejecting pin 10 is securely attached to the water collector without slipping. 1 is pushed out and released from the movable mold 20. In this way, the water collector 1 is taken out from the injection molding apparatus and the molding is completed.
以上、本発明の実施例を図面により詳述してき
たが、具体的な構成はこの実施例に限られるもの
ではなく、本発明の要旨を逸脱しない範囲におけ
る設計変更等があつても本発明に含まれる。 Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.
例えば、本発明では、軒樋に取り付けられる集
水器を成形するための射出成形装置を例にとつて
説明したが、集水器に限られず、フラツトな面を
有さない、あるいは、フラツトな面は狭小である
成形品の成形に用いられるものであれば、他の射
出成形装置に適用してもよい。 For example, in the present invention, an injection molding device for molding a water collector attached to an eave gutter has been described as an example, but the invention is not limited to water collectors, and can be used to mold a water collector that does not have a flat surface or has a flat surface. The present invention may be applied to other injection molding apparatuses as long as they are used for molding products with narrow surfaces.
また、実施例では、突き出しピンに突き出し面
に引掛部として溝を形成させたが、肉厚である成
形品に関しては、突き出しピンに突条を形成させ
てもよい。 Further, in the embodiment, the ejector pin has a groove formed on the ejector surface as a hook, but for a thick molded product, the ejector pin may have a protrusion.
（発明の効果）
以上説明してきたように、本発明の射出成形装
置にあつては、突き出しピンの突き出し面に、突
き出しによる成形品との滑りを防止する引掛部を
形成させ、１対の突き出しピンを成形品の相対す
る傾斜面に設けさせたため、薄肉の成形品の離型
をバランスよく確実に行なうことができる。(Effects of the Invention) As explained above, in the injection molding apparatus of the present invention, a hook portion is formed on the ejecting surface of the ejector pin to prevent the molded product from slipping due to the ejecting, and a pair of ejecting pins are provided. Since the pins are provided on opposing inclined surfaces of the molded product, the thin molded product can be reliably released from the mold in a well-balanced manner.
即ち、突き出しピンが、突き出し時に成形品の
傾斜面に沿つて滑り、成形品を突き出したり、突
き抜けたりすることを防止できる。 That is, the ejection pin can be prevented from sliding along the inclined surface of the molded product during ejection and from ejecting or penetrating the molded product.
第１図は本発明の射出成形装置を示す断面図、
第２図は実施例装置の成形品離型状態を示す断面
図、第３図は第１図Ａ部に対応する要部拡大図、
第４図は従来装置を示す断面図である。
１……集水器（成形品）、１０……突き出しピ
ン、１１……突き出し面、１２……引掛溝（引掛
部）、２０……可動型、４０……固定型、５０…
…成形材充填用間隙。
FIG. 1 is a sectional view showing an injection molding apparatus of the present invention;
FIG. 2 is a cross-sectional view showing the molded product release state of the embodiment apparatus, FIG. 3 is an enlarged view of the main part corresponding to part A in FIG. 1,
FIG. 4 is a sectional view showing a conventional device. DESCRIPTION OF SYMBOLS 1...Water collector (molded product), 10...Ejection pin, 11...Protrusion surface, 12...Hatching groove (hanging part), 20...Movable type, 40...Fixed type, 50...
...Gap for filling molding material.
Claims (1)
る為の装置であつて、固定型と可動型とを有し、
固定型に対し、成形材充填用間隙を介して可動型
が配置され、該可動型には、成形材充填用間隙へ
の成形材充填により成形された成形品を可動型か
ら突き出す突き出しピンが設けられ、該突き出し
ピン先端の突き出し面が成形品の傾斜面に沿つて
形成されている射出成形装置において、前記突き
出しピンの突き出し面に、突き出しによる成形品
との滑りを防止する引掛部を形成させ、１対の突
き出しピンを成形品の相対する傾斜面に設けさせ
たことを特徴とする射出成形装置。1 An apparatus for injection molding molded products having opposing inclined surfaces, which has a fixed mold and a movable mold,
A movable mold is arranged with respect to the fixed mold through a gap for filling the molding material, and the movable mold is provided with an ejecting pin for ejecting the molded product formed by filling the gap for filling the molding material from the movable mold. In an injection molding apparatus in which the ejector pin has a tip end ejecting surface formed along an inclined surface of a molded product, a hook portion is formed on the ejecting surface of the ejector pin to prevent slipping with respect to the molded product due to ejection. An injection molding apparatus characterized in that a pair of ejector pins are provided on opposing inclined surfaces of a molded product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13157786A JPS62288019A (en) | 1986-06-06 | 1986-06-06 | Injection molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13157786A JPS62288019A (en) | 1986-06-06 | 1986-06-06 | Injection molding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62288019A JPS62288019A (en) | 1987-12-14 |
| JPH047892B2 true JPH047892B2 (en) | 1992-02-13 |
Family
ID=15061304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13157786A Granted JPS62288019A (en) | 1986-06-06 | 1986-06-06 | Injection molding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62288019A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6628483B2 (en) * | 2015-03-13 | 2020-01-08 | 帝国通信工業株式会社 | Molding method for molded products |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6213617B2 (en) * | 1979-09-28 | 1987-03-27 | Sumitomo Electric Industries |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226659Y2 (en) * | 1985-07-11 | 1990-07-19 |
-
1986
- 1986-06-06 JP JP13157786A patent/JPS62288019A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6213617B2 (en) * | 1979-09-28 | 1987-03-27 | Sumitomo Electric Industries |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62288019A (en) | 1987-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4988472A (en) | Method of inserting a piece into a mold for molding a mouth of a preform | |
| US6217813B1 (en) | Method of rapid injection molding of elongated articles, such as cable ties | |
| GB1322224A (en) | Injection moulding apparatus | |
| JP4751015B2 (en) | Overmolded base material that becomes a base for overmolding molded products, molded products of foam material, molds, and methods for producing molded products | |
| US3500998A (en) | Holders for needles and like articles | |
| JPH047892B2 (en) | ||
| US6616884B1 (en) | Removal of cable tie from mold parts | |
| US6274072B1 (en) | Method of manufacturing plastic moldings using a water soluble core | |
| US6190599B1 (en) | Removal of injection-molded tie from mold by moving core disposed outside of abutment wall of tie | |
| JPS6027608Y2 (en) | Continuous slide fastener chain injection mold | |
| JPH07165260A (en) | Ic chip carrier tape and production thereof | |
| US5716579A (en) | Removal of injection-molded tie from mold by utilizing staggered parting line | |
| JPH0629165A (en) | Manufacture of rubber sealing material for electrolytic capacitor | |
| US4077672A (en) | Method of making a sponge mop part | |
| JP2872319B2 (en) | Injection molding for decoration | |
| JPH0618759B2 (en) | Molding method for tableware handle made of synthetic resin | |
| JP2707615B2 (en) | Two-color molding equipment | |
| CA2193301C (en) | Removal of injection-molded tie from mold by utilizing staggered parting line | |
| JPS57116623A (en) | Injection molding machine for thermoplastic synthetic resin | |
| JP3276507B2 (en) | Reaction injection mold | |
| JPS6110969Y2 (en) | ||
| US6601281B1 (en) | Method for molding substance on substrate and device formed thereby | |
| JPS6329528Y2 (en) | ||
| JP2564791Y2 (en) | Automatic gate cutting device for injection mold | |
| JP2779347B2 (en) | Injection molding method of molded article having concave part and pictured film on the surface |