JPH0512021Y2 - - Google Patents
Info
- Publication number
- JPH0512021Y2 JPH0512021Y2 JP3759487U JP3759487U JPH0512021Y2 JP H0512021 Y2 JPH0512021 Y2 JP H0512021Y2 JP 3759487 U JP3759487 U JP 3759487U JP 3759487 U JP3759487 U JP 3759487U JP H0512021 Y2 JPH0512021 Y2 JP H0512021Y2
- Authority
- JP
- Japan
- Prior art keywords
- runner
- pin
- plate
- dispensing
- lock
- 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
- 239000000463 material Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、ランナー自動落下式金型に関するも
のである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a runner automatic falling mold.
従来、ランナー自動落下式金型では、第３図及
び第４図に示す如く、ランナー払出ピン８′はラ
ンナー払出プレート３に設けられており、ランナ
ー落下時ランナー払出プレート３面より突出す
る。このため、ランナー１１がランナー払出ピン
８′に引掛かつて落下しない場合がある。また、
ランナー払出ピン８′とランナーロツクピン４′は
夫々ランナー払出プレート３とピン固定プレート
２に別個に設けられており、比較的離れている。
このため、柔軟性の大きい低密度ポリエチレン等
樹脂材料では、ランナー払出プレート３をランナ
ープレート１側に前進させてランナーロツクピン
４′をランナー払出プレート３内に引込めること
によつてランナーロツクピン４′先端からランナ
ー１１を外す前に、ランナー払出ピン８′がラン
ナー払出プレート３面から突出してしまい、ラン
ナー１１の払出しがうまく行えない場合がある。
Conventionally, in a runner automatic fall type mold, as shown in FIGS. 3 and 4, a runner ejecting pin 8' is provided on the runner ejecting plate 3, and protrudes from the surface of the runner ejecting plate 3 when the runner falls. For this reason, the runner 11 may get caught on the runner discharging pin 8' and may not fall. Also,
The runner payout pin 8' and the runner lock pin 4' are provided separately on the runner payout plate 3 and the pin fixing plate 2, respectively, and are relatively separated from each other.
Therefore, when using a highly flexible resin material such as low-density polyethylene, the runner lock pin 4 can be removed by moving the runner release plate 3 forward toward the runner plate 1 and retracting the runner lock pin 4' into the runner release plate 3. Before the runner 11 is removed from the tip, the runner payout pin 8' protrudes from the surface of the runner payout plate 3, and the runner 11 may not be able to be paid out properly.
本考案は、前記従来の問題点を解決するために
なされたもので、落下するランナーが引掛から
ず、しかも柔軟な樹脂材料でもランナーが確実に
落下するようにすることを目的とする。
The present invention was devised to solve the above-mentioned conventional problems, and aims to ensure that falling runners do not get caught, and moreover, the runners can fall reliably even when made of a flexible resin material.
本考案のランナー自動落下式金型は、ランナー
プレートとピン固定プレート及びランナー払出プ
レートを相対的に移動可能に互いに対向させて配
置し、かつ、前記ピン固定プレートに、ランナー
払出プレート側に延在してランナー払出プレート
に嵌入されたランナーロツクピンを設け、該ラン
ナーロツクピン先端のロツク部を、ピン固定プレ
ートとランナー払出プレートとが接触している
時、ランナー払出プレートより突出させると共
に、該ランナーロツクピン内に、前記ロツク部先
端より突出し得るよう突出力が付勢されたランナ
ー払出ピンを嵌入し、該ランナー払出ピンの突出
量をランナー払出プレートのストローク量と等し
いか、やや小さくしたことを特徴とするものであ
る。
The runner automatic dropping mold of the present invention has a runner plate, a pin fixing plate, and a runner dispensing plate arranged so as to be relatively movable and facing each other, and the pin fixing plate has a runner dispensing plate extending toward the runner dispensing plate. A runner lock pin is fitted into the runner payout plate, and when the pin fixing plate and the runner payout plate are in contact, the lock portion at the tip of the runner lock pin is made to protrude from the runner payout plate, and the runner A runner ejecting pin is fitted into the lock pin with a protruding force applied so that it can protrude from the tip of the lock portion, and the amount of protrusion of the runner ejecting pin is made equal to or slightly smaller than the stroke amount of the runner ejecting plate. This is a characteristic feature.
以下、本考案の一実施例を第１図及び第２図に
沿い説明する。
An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
図中１はランナープレート、２はピン固定プレ
ートで、一方を固定側、他方を可動側として相対
的に移動可能に対向させて配置してある。 In the figure, 1 is a runner plate, and 2 is a pin fixing plate, one of which is a fixed side and the other is a movable side, and they are arranged to face each other so as to be relatively movable.
３はランナー払出プレートで、ピン固定プレー
ト２と接した位置から図示l1だけランナープレー
ト１側に移動可能に両プレート１，２間に配置し
てある。 Reference numeral 3 denotes a runner discharging plate, which is disposed between the plates 1 and 2 so as to be movable toward the runner plate 1 by l1 as shown in the figure from a position in contact with the pin fixing plate 2.
４はランナーロツクピンで、前記ピン固定プレ
ート２に装着されて型開閉方向に沿つてランナー
払出プレート３側に延在すると共に、ランナー払
出プレート３に設けたピン摺動孔５或いは図示し
ない該孔に摺動可能に嵌入されている。このラン
ナーロツクピン４の先端にはロツク部６が突設さ
れ、かつ軸芯部には、前記ロツク部６の中央部に
開口するピン摺動孔７が設けられている。 Reference numeral 4 denotes a runner lock pin, which is attached to the pin fixing plate 2 and extends toward the runner dispensing plate 3 along the mold opening/closing direction. It is slidably inserted into the A lock portion 6 is protruded from the tip of the runner lock pin 4, and a pin sliding hole 7 that opens at the center of the lock portion 6 is provided in the shaft core.
８はランナー払出ピンで、ランナープレート１
側に移動可能に前記ランナーロツクピン４内（ピ
ン摺動孔７）に嵌入されており、該ランナー払出
ピン８は反ランナープレート１側に配したスプリ
ング９により常時突出力が付勢されている。この
ため、ランナー払出ピン８は、第１図に示す型閉
じ状態ではランナープレート１によりスプリング
９の力に打勝つてランナーロツクピン４の内方に
押込まれて該ランナー払出ピン８先端がロツク部
６先端とほぼ合致し、また第２図に示す型開き状
態ではスプリング９の力によつてランナーロツク
ピン４のロツク部６先端より図示l2だけ突出す
る。 8 is a runner ejecting pin, and runner plate 1
The runner lock pin 4 is fitted into the runner lock pin 4 (pin sliding hole 7) so as to be movable to the side, and the runner ejecting pin 8 is constantly biased with an ejecting force by a spring 9 disposed on the side opposite to the runner plate 1. . Therefore, in the mold closed state shown in FIG. 1, the runner dispensing pin 8 is pushed into the runner lock pin 4 by the runner plate 1 overcoming the force of the spring 9, so that the tip of the runner dispensing pin 8 is in the locking part. 6, and when the mold is opened as shown in FIG. 2, the force of the spring 9 causes the runner lock pin 4 to protrude from the tip of the lock portion 6 by an amount l2 as shown in the figure.
また、型閉じ状態でランナー払出ピン８をラン
ナーロツクピン４内に支持して射出圧で所定量以
上後退しないようにするために、該ランナー払出
ピン８の反ランナープレート１側にはスペーサ１
０が配置されている。 In addition, in order to support the runner dispensing pin 8 in the runner lock pin 4 in the mold closed state and prevent it from retracting more than a predetermined amount due to injection pressure, a spacer 1 is provided on the side of the runner dispensing pin 8 opposite to the runner plate 1.
0 is placed.
さらに、ランナー１１を最適姿勢で落下させる
ためにスプリング９の力を調整できるように、ス
ペーサ１０にはねじ孔１２を設け、該ねじ孔１２
には、スプリング９の反ランナー払出ピン８側端
を支持する調整ねじ１３を螺合している。 Furthermore, the spacer 10 is provided with a screw hole 12 so that the force of the spring 9 can be adjusted in order to drop the runner 11 in an optimal posture.
An adjustment screw 13 that supports the end of the spring 9 on the side opposite to the runner payout pin 8 is screwed into the spring 9 .
また、ランナー１１が落下時にランナー払出ピ
ン８に引掛からないように、第２図に示す型開き
完了状態ではランナーロツクピン４のロツク部６
先端より突出したランナー払出ピン８の先端面が
ランナー払出プレート３面とほぼ面一（好ましく
は若干引込む程度）となつている。具体的には、
ランナーロツクピン４の先端からランナー払出ピ
ン８の突出する長さl2とロツク部６の突出長さｔ
の和とピン固定プレート２に対するランナー払出
プレート３の移動量l1との関係を
l1≧l2＋ｔとしている。 Also, in order to prevent the runner 11 from getting caught on the runner dispensing pin 8 when it falls, the lock portion 6 of the runner lock pin 4 is locked in the mold opening completion state shown in FIG.
The distal end surface of the runner dispensing pin 8 protruding from the tip is substantially flush with the surface of the runner dispensing plate 3 (preferably slightly retracted). in particular,
The protruding length l 2 of the runner payout pin 8 from the tip of the runner lock pin 4 and the protruding length t of the lock portion 6
The relationship between the sum of and the amount of movement l 1 of the runner payout plate 3 with respect to the pin fixing plate 2 is set as l 1 ≧l 2 +t.
型閉じ時、ランナープレート１とランナー払出
ピン８が当接して、スプリング９を圧縮しながら
ランナー払出ピン８を後退させ、第１図に示す如
く型閉じする。
When the mold is closed, the runner plate 1 and the runner discharging pin 8 come into contact with each other, compressing the spring 9 and retracting the runner discharging pin 8, thereby closing the mold as shown in FIG.
射出時、ランナー払出ピン８はスペーサ１０に
より支持されて射出圧が働いても後退しないか
ら、従来と同様にランナー１１が成形される。 During injection, the runner ejecting pin 8 is supported by the spacer 10 and does not move back even when the injection pressure is applied, so the runner 11 is molded in the same manner as in the conventional case.
一方、型開き時、ランナー払出プレート３がラ
ンナープレート１側に移動し、ランナー１１はラ
ンナーロツクピン４先端のロツク部６から外され
る。その直後スプリング９の力によりランナー払
出ピン８がロツク部６先端から突出されるから、
ランナー１１とランナー払出プレート３の張付き
が解除される。この時、ランナーロツクピン４と
ランナー払出ピン８ガ同一場所（実施例では同一
軸心上）に配置されているから、柔軟な樹脂材料
であつても上記の払出機能は確実に働く。 On the other hand, when the mold is opened, the runner delivery plate 3 moves toward the runner plate 1, and the runner 11 is removed from the lock portion 6 at the tip of the runner lock pin 4. Immediately after that, the runner ejecting pin 8 is projected from the tip of the lock portion 6 by the force of the spring 9.
The adhesion between the runner 11 and the runner payout plate 3 is released. At this time, since the runner lock pin 4 and the runner payout pin 8 are arranged at the same location (on the same axis in the embodiment), the above-mentioned payout function works reliably even when the material is a flexible resin material.
また、ランナー払出ピン８はランナー１１の払
出し完了時には、先端面がランナー払出プレート
３面とほぼ面一或いはやや後退しているから、ラ
ンナー１１の落下の妨げとならない。 Furthermore, when the runner 11 is completely discharged, the tip end surface of the runner dispensing pin 8 is substantially flush with the surface of the runner dispensing plate 3 or is slightly recessed, so that it does not prevent the runner 11 from falling.
しかも、スプリング９の力を調整ねじ１３によ
り調整することにより、ランナー１１の突出し力
を最適なものとできる。 Furthermore, by adjusting the force of the spring 9 using the adjustment screw 13, the ejection force of the runner 11 can be optimized.
以上の通り、本考案は、ランナー払出ピンをラ
ンナーロツクピン内に組込んでランナーのロツク
及び張付きを同一場所で解除するから、柔軟な樹
脂材料でもランナーを確実に払出すことができる
と共に、金型が簡単になり、金型加工費の低減が
図れる。また、ランナー払出し時のランナー払出
ピン先端面がランナー払出プレート面とほぼ面一
か或いはやや後退しているから、ランナー払出ピ
ンがランナー落下の妨げとならない。従つて、ラ
ンナーの払出し落下性能の向上が図れると共に、
金型のシンプル化及びコストダウンが図れる。
As described above, the present invention incorporates the runner ejecting pin into the runner locking pin to release the lock and sticking of the runner at the same location, so the runner can be reliably ejected even with a flexible resin material. The mold becomes simpler and mold processing costs can be reduced. Furthermore, since the tip end surface of the runner payout pin during runner payout is substantially flush with the surface of the runner payout plate or slightly retracted, the runner payout pin does not hinder the runner from falling. Therefore, the payout and fall performance of the runner can be improved, and
The mold can be simplified and costs can be reduced.
第１図、第２図は夫々本考案の一実施例を型閉
じ状態と型開き状態で示す断面図、第３図、第４
図は夫々従来例を型閉じ状態と型開き状態で示す
断面図である。
１……ランナープレート、２……ピン固定プレ
ート、３……ランナー払出プレート、４……ラン
ナーロツクピン、５，７……ピン摺動孔、６……
ロツク部、８……ランナー払出ピン、９……スプ
リング、１０……スペーサ、１１……ランナー。
FIGS. 1 and 2 are cross-sectional views showing an embodiment of the present invention in a mold closed state and a mold opened state, respectively, and FIGS. 3 and 4
The figures are cross-sectional views showing the conventional example in a mold closed state and a mold open state, respectively. 1... Runner plate, 2... Pin fixing plate, 3... Runner delivery plate, 4... Runner lock pin, 5, 7... Pin sliding hole, 6...
Lock portion, 8...Runner ejecting pin, 9...Spring, 10...Spacer, 11...Runner.
Claims (1)
ナー払出プレートを相対的に移動可能に互いに対
向させて配置し、かつ、前記ピン固定プレート
に、ランナー払出プレート側に延在してランナー
払出プレートに嵌入されたランナーロツクピンを
設け、該ランナーロツクピン先端のロツク部を、
ピン固定プレートとランナー払出プレートとが接
触している時、ランナー払出プレートより突出さ
せると共に、該ランナーロツクピン内に、前記ロ
ツク部先端より突出し得るよう突出力が付勢され
たランナー払出ピンを嵌入し、該ランナー払出ピ
ンの突出量をランナー払出プレートのストローク
量と等しいか、やや小さくしたことを特徴とする
ランナー自動落下式金型。 A runner plate, a pin fixing plate, and a runner dispensing plate are disposed so as to be relatively movable and face each other, and a runner lock is provided on the pin fixing plate and extends toward the runner dispensing plate and is fitted into the runner dispensing plate. A pin is provided, and the lock portion at the tip of the runner lock pin is
When the pin fixing plate and the runner dispensing plate are in contact, the runner dispensing pin is pushed out from the runner dispensing plate, and the runner dispensing pin is biased with a protruding force so that it can protrude from the tip of the lock portion, and is inserted into the runner lock pin. A runner automatic dropping mold characterized in that the amount of protrusion of the runner ejecting pin is equal to or slightly smaller than the stroke amount of the runner ejecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3759487U JPH0512021Y2 (en) | 1987-03-13 | 1987-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3759487U JPH0512021Y2 (en) | 1987-03-13 | 1987-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63144217U JPS63144217U (en) | 1988-09-22 |
| JPH0512021Y2 true JPH0512021Y2 (en) | 1993-03-26 |
Family
ID=30849064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3759487U Expired - Lifetime JPH0512021Y2 (en) | 1987-03-13 | 1987-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0512021Y2 (en) |
-
1987
- 1987-03-13 JP JP3759487U patent/JPH0512021Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63144217U (en) | 1988-09-22 |
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