JPH0126423Y2 - - Google Patents
Info
- Publication number
- JPH0126423Y2 JPH0126423Y2 JP15405984U JP15405984U JPH0126423Y2 JP H0126423 Y2 JPH0126423 Y2 JP H0126423Y2 JP 15405984 U JP15405984 U JP 15405984U JP 15405984 U JP15405984 U JP 15405984U JP H0126423 Y2 JPH0126423 Y2 JP H0126423Y2
- Authority
- JP
- Japan
- Prior art keywords
- molded product
- mold
- slide core
- product
- rack
- 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 3
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Description
【考案の詳細な説明】
〔考案の属する技術分野〕
本考案はスライドコアを有する成形金型の離型
装置に関する。[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a mold release device for a molding die having a slide core.
従来成形品のアンダカツトを抜く機構としてス
ライドコア等の方法が用いられているが、離形の
際特に深くかつ径の細い穴等の場合成形品にかり
じり或いは変形等が発生して成形品を傷つける欠
点があつた。さらにアンダカツト部にネジ形状の
ある場合には電動機を使用することにより機構は
複雑になつてコストを高くしていた。
Conventionally, methods such as slide cores have been used as a mechanism for removing undercuts from molded products, but during mold release, if the holes are particularly deep and narrow, the molded product may be scratched or deformed, resulting in damage to the molded product. It had a flaw that hurt it. Furthermore, when the undercut portion has a threaded shape, the use of an electric motor complicates the mechanism and increases cost.
本考案はこのような欠点を除去したものでその
目的は、アンダカツト部が深くかつ径の細い穴の
場合でも離形を円滑にして成形品を傷つけないよ
うにすると共に、アンダカツト部にネジ形状があ
つても簡単な機構にしてコストをを低くした成形
金型の離形装置を提供することにある。
The present invention has been developed to eliminate these drawbacks.The purpose of the present invention is to make the mold release smooth and prevent damage to the molded product even when the undercut is deep and has a small diameter hole, and the undercut has a threaded shape. To provide a releasing device for a molding die which has a simple mechanism and reduces costs.
本考案における成形金型の離形装置は、固定型
板と、移動型板と、固定型板に取付けられ両型板
の対向面に対し角度を有すると共にその一側にラ
ツクを設けた傾斜ピンと、移動型板に組み込まれ
型開時に両型板の対向面に沿つて成形品から遠ざ
かる方向に移動するスライドコアと、スライドコ
ア内へ回転可能に挿入され、その先端にあつて成
形品のアンダカツト部を形成する製品部ならびに
ラツクに噛みあうピニオンを有する回転軸とから
なることを特徴にしている。
The mold release device of the present invention includes a fixed mold plate, a movable mold plate, and an inclined pin that is attached to the fixed mold plate and has an angle with respect to the opposing surfaces of both mold plates and has a rack on one side. , a slide core that is incorporated in the movable mold plate and moves in a direction away from the molded product along the opposing surfaces of both mold plates when the mold is opened, and a slide core that is rotatably inserted into the slide core and located at the tip of the slide core to undercut the molded product. It is characterized by consisting of a product part forming a part and a rotating shaft having a pinion that meshes easily.
以下本考案について一実施例を示した第１図お
よび第２図により説明する。固定型板１１と移動
型板１２とにより形成されるキヤビテに不図示の
射出成形機から樹脂が射出されて成形品１３にな
り、成形品１３にはアンダカツト部１４がある。
移動型板１２にはこれと共に型開（図において下
方へ移動）をするスライドコア１５が図において
左右動可能に組込まれており、スライドコア１５
内にはピニオン１６と成形品１３を形成する製品
部１７とを有する回転軸１８が挿入されており、
回転軸１８はピニオン１６の左右にある軸部によ
りスライドコア１５と軸受体１９に支持されてい
る。固定型板１１には傾斜角αにした傾斜ピン２
０が取付けてあり、傾斜ピン２０は一側に設けた
ラツク２１がピニオン１６に噛みあつていると共
に、スライドコア１５内に挿入することによりス
ライドコア１５が移動型板１２と共に型開したと
きスライドコア１５は傾斜ピン２０の斜面と両型
板１１および１２の対向面に沿つて後退（図にお
いて右方へ移動）するようになつている。
The present invention will be explained below with reference to FIGS. 1 and 2 showing one embodiment. A resin is injected from an injection molding machine (not shown) into a cavity formed by the fixed mold plate 11 and the movable mold plate 12 to form a molded product 13, and the molded product 13 has an undercut portion 14.
A slide core 15 that opens the mold (moves downward in the figure) is incorporated into the movable mold plate 12 so as to be movable from side to side in the figure.
A rotating shaft 18 having a pinion 16 and a product part 17 forming the molded product 13 is inserted inside.
The rotating shaft 18 is supported by the slide core 15 and the bearing body 19 by shaft portions on the left and right sides of the pinion 16. The fixed template 11 has an inclined pin 2 with an inclined angle α.
0 is attached, and the inclined pin 20 has a rack 21 provided on one side that engages with the pinion 16, and when inserted into the slide core 15, the slide core 15 slides when the mold is opened together with the movable mold plate 12. The core 15 is adapted to move backward (move rightward in the figure) along the slope of the inclined pin 20 and the opposing surfaces of both mold plates 11 and 12.
次に前述した実施例の動作を説明する。成形品
１３が冷却固化した後、図示の状態から型開する
とスライドコア１５は移動型板１２と共に下方へ
移動し、この移動によりスライドコア１５は回転
軸１８と共に傾斜ピン２０により両型板１１およ
び１２の対向面に沿つて成形品１３から遠ざかる
方向に後退する。後退時回転軸１８はピニオン１
６がラツク２１に噛みあつているためスライドコ
ア１５の後退に同調して回転し、その製品部１７
も回転することにより成形品１３のアンダカツト
部１４から滑かに後退して離形する。第３図は型
開後の状態を示している。 Next, the operation of the embodiment described above will be explained. After the molded product 13 is cooled and solidified, when the mold is opened from the state shown in the figure, the slide core 15 moves downward together with the movable template 12, and as a result of this movement, the slide core 15 is moved along with the rotary shaft 18 by the tilting pin 20 and both templates 11 and 12 in a direction away from the molded product 13. The rotation shaft 18 at the time of reversing is the pinion 1
6 is engaged with the rack 21, it rotates in synchronization with the retreat of the slide core 15, and the product part 17
As the molded product 13 rotates, it smoothly retreats from the undercut portion 14 of the molded product 13 and is released from the mold. FIG. 3 shows the state after opening the mold.
第４図は本考案の他の実施例を示したもので、
成形品１３Ａのアンダカツト部はネジ状になつて
いる。このため回転軸１８Ａの製品部１７Ａもネ
ジ形状になつている。型開時回転軸１８Ａはスラ
イドコア１５と共に後退し同時に回転するため製
品部１７Ａはアンダカツト部から離形する。 FIG. 4 shows another embodiment of the present invention.
The undercut portion of the molded product 13A is screw-shaped. For this reason, the product portion 17A of the rotating shaft 18A is also thread-shaped. When the mold is opened, the rotating shaft 18A moves back together with the slide core 15 and rotates at the same time, so that the product part 17A is released from the undercut part.
本考案における成形金型の離形装置は以上説明
したように、固定型板へ一側にラツクを有する傾
斜ピンを取付け移動型板へ組み込んだスライドコ
アには、ラツクに噛みあうピニオンとその先端に
成形品のアンダカツトを形成する製品部とを有す
る回転軸を挿入した。従つて型開時にはスライド
コアと回転軸は共に後退し、かつ回転軸はラツク
とピニオンにより回転するためアンダカツト部を
形成する製品部も回転しながら後退する。このた
めアンダカツト部は径が細くかつ深くても製品部
は円滑に離形して成形品を傷つけることがない。
さらにアンダカツト部がネジ状であつても製品部
は回転しながら後退するため離形可能である利点
を有する。
As explained above, the mold release device of the present invention has an inclined pin with a rack on one side attached to a fixed mold plate, and a slide core incorporated into a movable mold plate has a pinion that engages with the rack and a pinion at its tip. A rotary shaft having a product portion forming an undercut of the molded product was inserted into the molded product. Therefore, when the mold is opened, both the slide core and the rotating shaft retreat, and since the rotating shaft is rotated by the rack and pinion, the product part forming the undercut also moves backward while rotating. Therefore, even if the undercut portion has a small diameter and is deep, the product part can be smoothly released and the molded product will not be damaged.
Furthermore, even if the undercut part is screw-shaped, the product part has the advantage of being removable because it retreats while rotating.
第１図ないし第３図は本考案の一実施例を示し
第１図は型閉時の断面図、第２図は第１図の２−
２線断面図、第３図は型開時における第１図に相
当する断面図、第４図は本考案の他の実施例にお
ける成形品と回転軸の断面図である。
１１……固定型板、１２……移動型板、１３…
…成形品、１４……アンダカツト部、１５……ス
ライドコア、１６……ピニオン、１７……製品
部、１８……回転軸、２０……傾斜ピン、２１…
…ラツク。
Figures 1 to 3 show one embodiment of the present invention, Figure 1 is a sectional view when the mold is closed, and Figure 2 is a 2--
3 is a sectional view corresponding to FIG. 1 when the mold is opened, and FIG. 4 is a sectional view of a molded product and a rotating shaft in another embodiment of the present invention. 11...Fixed template, 12...Movable template, 13...
... Molded product, 14 ... Undercut part, 15 ... Slide core, 16 ... Pinion, 17 ... Product section, 18 ... Rotating shaft, 20 ... Inclined pin, 21 ...
...Ratsuku.
Claims (1)
けられ、前記両型板の対向面に対し角度を有する
と共にその一側にラツクを設けた傾斜ピンと、前
記移動型板に組み込まれ型開時に前記両型板の対
向面に沿つて成形品から遠ざかる方向に移動する
スライドコアと、同スライドコア内へ回転可能に
挿入され、その先端にあつて前記成形品のアンダ
カツト部を形成する製品部ならびに前記ラツクに
噛みあうピニオンを有する回転軸とからなり、型
開時に前記回転軸は前記スライドコアと一体的に
前記成形品から遠ざかる方向に移動すると共に、
ラツクおよびピニオンを介して回転することによ
りその製品部がアンダカツト部から回転しながら
離形するようにした成形金型の離形装置。 a fixed mold plate, a movable mold plate, an inclined pin attached to the fixed mold plate and having an angle with respect to opposing surfaces of the two mold plates and provided with a rack on one side; A slide core that moves in a direction away from the molded product along the opposing surfaces of the templates when opened, and a product that is rotatably inserted into the slide core and forms an undercut portion of the molded product at its tip. and a rotating shaft having a pinion that meshes with the rack, and when the mold is opened, the rotating shaft moves integrally with the slide core in a direction away from the molded product,
A mold release device for a molding die that rotates through a rack and pinion to release the product part from the undercut part while rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15405984U JPH0126423Y2 (en) | 1984-10-12 | 1984-10-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15405984U JPH0126423Y2 (en) | 1984-10-12 | 1984-10-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6170020U JPS6170020U (en) | 1986-05-13 |
| JPH0126423Y2 true JPH0126423Y2 (en) | 1989-08-08 |
Family
ID=30712053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15405984U Expired JPH0126423Y2 (en) | 1984-10-12 | 1984-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0126423Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008012873A (en) * | 2006-07-10 | 2008-01-24 | Fujinon Sano Kk | Mold assembly for injection molding |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5179127B2 (en) * | 2007-09-19 | 2013-04-10 | 株式会社山城精機製作所 | Mold screw removal device |
-
1984
- 1984-10-12 JP JP15405984U patent/JPH0126423Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008012873A (en) * | 2006-07-10 | 2008-01-24 | Fujinon Sano Kk | Mold assembly for injection molding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6170020U (en) | 1986-05-13 |
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