JPH0245972B2 - - Google Patents
Info
- Publication number
- JPH0245972B2 JPH0245972B2 JP57192503A JP19250382A JPH0245972B2 JP H0245972 B2 JPH0245972 B2 JP H0245972B2 JP 57192503 A JP57192503 A JP 57192503A JP 19250382 A JP19250382 A JP 19250382A JP H0245972 B2 JPH0245972 B2 JP H0245972B2
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding machine
- cylinder
- eject cylinder
- stripper plate
- 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
- 238000000465 moulding Methods 0.000 claims description 27
- 238000010586 diagram Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000001746 injection moulding 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、射出成形等で用いる成形機に関する
もので、特にその離型機構に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a molding machine used in injection molding and the like, and particularly to a mold release mechanism thereof.
従来の成形機における離型動作は次のような操
作によりおこなわれる。図面第１図および第２図
は成形機の離型動作を示す図で、第１図は射出
時、第２図は離型時のものである。この図におい
て射出時（第１図）から成形機の型開閉用シリン
ダーの働きによつて可動側型取付板１が矢印方向
に移動して金型が開かれる。この時成形品７は、
ストリツパープレート３とセンターピン８と共に
可動側型取付板１の側に移動しキヤビテイ９より
離れる。金型が一杯に開かれたところでエジエク
トシリンダー２を作動させて矢印と反対の方向に
ストリツパープレート３を移動させて成形品を落
下させる。又離型時（第２図）から金型を閉じる
ためには、前述の動作と逆の動作を行なえばよ
い。つまりエジエクトシリンダー２を作動させて
矢印方向に移動させ続いて可動側型取付板１を矢
印と反対な方向に移動させて金型を閉じる。 The mold release operation in a conventional molding machine is performed by the following operation. Figures 1 and 2 are diagrams showing the mold release operation of the molding machine, with Figure 1 being during injection and Figure 2 being during mold release. In this figure, from the time of injection (FIG. 1), the movable mold mounting plate 1 is moved in the direction of the arrow by the action of the mold opening/closing cylinder of the molding machine, and the mold is opened. At this time, the molded product 7 is
It moves together with the stripper plate 3 and center pin 8 toward the movable mold mounting plate 1 and away from the cavity 9. When the mold is fully opened, the eject cylinder 2 is operated to move the stripper plate 3 in the direction opposite to the arrow to drop the molded product. Furthermore, in order to close the mold after demolding (FIG. 2), the operation described above may be reversed. That is, the eject cylinder 2 is operated and moved in the direction of the arrow, and then the movable mold mounting plate 1 is moved in the direction opposite to the arrow to close the mold.
以上のような従来の成形機の離型機構において
は離型のためのストリツパー等の移動方向は、型
開閉の際の可動側型取付板の移動方向と逆の方向
である。そのために成形機のシヨツトサイクルの
短縮が出来ないなどの欠点がある。又金型の開く
範囲は、少なくとも離型のためのストリツパープ
レートの移動量（t1）と成形品が容易に落下し得
るスペース分（t2）は必要であり、したがつて可
動側型取付板の移動量が大である。 In the mold release mechanism of the conventional molding machine as described above, the direction of movement of the stripper and the like for mold release is opposite to the direction of movement of the movable mold mounting plate when opening and closing the mold. Therefore, there are drawbacks such as the inability to shorten the shot cycle of the molding machine. In addition, the opening range of the mold requires at least the amount of movement of the stripper plate for mold release (t 1 ) and the space where the molded product can easily fall (t 2 ), and therefore the movable side The amount of movement of the mold mounting plate is large.
本発明は、従来の離型機構と全く逆の動作にて
離型を行なうもので可動側型取付板の金型開閉の
ための移動方向と同一の方向に離型のためのシリ
ンダーの動作を行うようにした成形機を提供する
ものである。 The present invention performs mold release in a completely opposite operation to the conventional mold release mechanism, and the cylinder for mold release moves in the same direction as the moving direction of the movable mold mounting plate to open and close the mold. The purpose of the present invention is to provide a molding machine that performs the following steps.
以下本発明の成形機の詳細な内容を説明する。
第３図、第４図は、本発明の成形機の離型動作を
示す図で、第３図は射出時の状態を示す図、第４
図は離型時の状態を示す図である。この図に示す
ように本発明の成形機は型が閉められ成形が行な
われている時にはエジエクトシリンダー２は、ロ
ツド５を押し出した状態になつている。この状態
から型が開かれるために可動側型取付板１が矢印
方向に移動して金型が開かれる。本発明の成形機
は、金型が開かれた後にエジエクトシリンダー２
が働いてそのピストンロツド５は矢印方向つまり
可動側型取付板１の移動方向と同一方向に移動す
る。この時成形品７は、キヤビテイ９より離れ
る。ここでピストンロツド５の先端はエジエクタ
ープレート６を介して例えばセンターピン８又は
コアーに連結するようにしておけば、センターピ
ン８又はコアーはストリツパープレート３内にも
ぐり込むことになり成形品はストリツパープレー
トにより離型され落下する。即ち従来の成形機に
よる場合は、コアーが金型に対し固定されストリ
ツパープレートが移動するのに対し、本発明で
は、ストリツパープレートは金型に固定されコア
ーが従来のストリツパープレートの移動方向と逆
方向に移動する。したがつて従来のコアーとスト
リツパープレートとの相対的な移動関係と全く同
じ移動がなされることになり、成形品は従来の成
形機におけると実質的に同じ手段にて離型される
ことになる。このようにして第４図に示す状態と
なる。 The details of the molding machine of the present invention will be explained below.
3 and 4 are diagrams showing the mold release operation of the molding machine of the present invention, FIG. 3 is a diagram showing the state at the time of injection, and FIG.
The figure shows the state at the time of mold release. As shown in this figure, in the molding machine of the present invention, when the mold is closed and molding is being performed, the eject cylinder 2 is in a state in which the rod 5 is extruded. In order to open the mold from this state, the movable mold mounting plate 1 moves in the direction of the arrow, and the mold is opened. The molding machine of the present invention has an eject cylinder 2 after the mold is opened.
The piston rod 5 moves in the direction of the arrow, that is, in the same direction as the moving direction of the movable mold mounting plate 1. At this time, the molded product 7 is separated from the cavity 9. If the tip of the piston rod 5 is connected to, for example, the center pin 8 or core through the ejector plate 6, the center pin 8 or the core will sink into the stripper plate 3, and the molded product will not be stretched. It is released from the mold by the ripper plate and falls. That is, in the case of a conventional molding machine, the core is fixed to the mold and the stripper plate is moved, whereas in the present invention, the stripper plate is fixed to the mold and the core is moved to the mold. Move in the opposite direction of movement. Therefore, the relative movement between the core and the stripper plate is exactly the same as in the conventional molding machine, and the molded product is released by substantially the same means as in the conventional molding machine. become. In this way, the state shown in FIG. 4 is reached.
第４図の状態から金型を閉じる場合は、まずエ
ジエクターシリンダー２が矢印と反対方向に移動
してコアーが元の状態に戻り更に可動側型取付板
１も矢印方向に移動して金型は閉じられる。 When closing the mold from the state shown in Figure 4, first the ejector cylinder 2 moves in the opposite direction to the arrow, the core returns to its original state, and the movable mold mounting plate 1 also moves in the direction of the arrow to mold the mold. is closed.
以上説明したように本発明の成形機は、型開き
又は型閉じのための成形機の動作とエジエクトシ
リンダーによる離型機構の動作方向が全く同一方
向である。したがつてこれら動作が無理なく連続
して行なわれることになる。したがつてシヨツト
サイクルの短縮も可能となる。又これらのことか
ら成形機の能力が増大することになる。更にスト
リツパープレート等を動かすことがないのでその
動作のために必要となるプレートが不必要となり
金型が小型になし得る。又離型の時に開かれる型
板間の間隔は、成形品が落下するのに十分なスペ
ースがあれば良く、ストリツパープレートの移動
間隔が不必要となるので成形機を小さくすること
が可能となる。 As explained above, in the molding machine of the present invention, the operation direction of the molding machine for opening or closing the mold and the operation direction of the mold release mechanism using the eject cylinder are exactly the same direction. Therefore, these operations can be performed continuously without difficulty. Therefore, it is also possible to shorten the shot cycle. Moreover, the capacity of the molding machine is increased due to these factors. Furthermore, since the stripper plate and the like do not need to be moved, a plate required for its operation is not required, and the mold can be made smaller. Also, the gap between the templates that are opened during mold release only needs to be enough space for the molded product to fall, and since the stripper plate movement interval is unnecessary, the molding machine can be made smaller. becomes.
尚本発明の成形機は、従来の成形機のエジエク
トシリンダーの動作を変更するだけで構成し得る
ので、従来のものからの変更が極めて簡単に行な
い得る。 The molding machine of the present invention can be constructed by simply changing the operation of the eject cylinder of a conventional molding machine, so it can be very easily modified from the conventional molding machine.
第１図、第２図は従来の成形機の離型動作を示
す図、第３図、第４図は本発明の成形機の離型動
作を示す図である。
１……金型の移動側取付板、２……成形機のエ
ジエクトシリンダー、３……金型のストリツパー
プレート。
1 and 2 are diagrams showing the mold release operation of a conventional molding machine, and FIGS. 3 and 4 are diagrams showing the mold release operation of the molding machine of the present invention. 1... Mounting plate on the moving side of the mold, 2... Eject cylinder of the molding machine, 3... Stripper plate of the mold.
Claims (1)
リンダーの動作により金型のストリツパープレー
トおよび前記エジエクトシリンダーのピストンロ
ツドにより駆動されるエジエクタープレートとか
らなる離型機構を働かせて離型を行なう成形機に
おいて、金型を閉じた際に前記ピストンロツドを
一部又は完全に押し出した位置に保持するように
構成し、上記エジエクトシリンダーによる離型の
ための動作方向を金型を開く際の型開閉用シリン
ダーの動作方向と同一方向にして前記ピストンロ
ツドによるエジエクタープレートを固定されたス
トリツパープレートから離れるようにして成形品
を抜き取るようにしたことを特徴とする成形機。1 A molding machine that has an eject cylinder and releases the mold by operating a mold release mechanism consisting of a stripper plate of a mold and an ejector plate driven by a piston rod of the eject cylinder by the operation of the eject cylinder. The piston rod is configured to be held in a partially or completely extruded position when the mold is closed, and the direction of movement of the eject cylinder for releasing the mold is set to be the same as that for opening and closing the mold when opening the mold. A molding machine characterized in that the molded product is extracted by moving the ejector plate by the piston rod away from a fixed stripper plate in the same direction as the operating direction of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19250382A JPS5983634A (en) | 1982-11-04 | 1982-11-04 | Molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19250382A JPS5983634A (en) | 1982-11-04 | 1982-11-04 | Molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5983634A JPS5983634A (en) | 1984-05-15 |
| JPH0245972B2 true JPH0245972B2 (en) | 1990-10-12 |
Family
ID=16292380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19250382A Granted JPS5983634A (en) | 1982-11-04 | 1982-11-04 | Molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5983634A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109070202A (en) * | 2016-11-11 | 2018-12-21 | 艾科塔·侯赛因·G·米斯特里 | New Type Alternating Current copper rotor die casting machine and die-casting process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107960A (en) * | 1978-02-14 | 1979-08-24 | Shigeru Aoki | Injection molding machine |
-
1982
- 1982-11-04 JP JP19250382A patent/JPS5983634A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107960A (en) * | 1978-02-14 | 1979-08-24 | Shigeru Aoki | Injection molding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5983634A (en) | 1984-05-15 |
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