JPS63286318A - Mold clamping device - Google Patents
Mold clamping deviceInfo
- Publication number
- JPS63286318A JPS63286318A JP12028387A JP12028387A JPS63286318A JP S63286318 A JPS63286318 A JP S63286318A JP 12028387 A JP12028387 A JP 12028387A JP 12028387 A JP12028387 A JP 12028387A JP S63286318 A JPS63286318 A JP S63286318A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- chamber
- mold clamping
- movable platen
- supplied
- 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.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 238000004512 die casting Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007935 neutral effect Effects 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、射出成形機やダイカスト機などの型締装置に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mold clamping device for an injection molding machine, a die casting machine, etc.
特開昭５５−９８８５号公報に示すような型締装置が知
られてる。A mold clamping device as shown in Japanese Unexamined Patent Publication No. 55-9885 is known.
つまり、第８図に示すように、可動盤１を゛型閉じ方向
と型開き方向に移動する型締シリンダ２に第１、第２型
閉じ室３．４と型開き室５とを形成すると共に、第２型
閉じ室４の受圧面積を第１型閉じ室３の受圧面積よりも
大きくし、型開き室５の受圧面積を第１、第２型閉じ室
３゜４の受圧面積の和よりも小さくすると共に、型閉じ
時には各室に圧油を供給して受圧面積差により可動盤１
を型閉じ方向に移動させ、かつ型開き室５内に圧油を第
１、第２型閉じ室３．４に流入させ、型締め時には第１
、第２型閉じ室３．４に圧油を供給して型締めし、型開
き時には第１型閉じ室３をタンクに連通し、かつ節２型
閉じ室４と型開き室５に圧油を供給してその受圧面積差
により可動盤１を型開き方向に移動するとともに第２型
閉じ室４内の圧油を型開き室５に流入するようにしであ
る。That is, as shown in FIG. 8, first and second mold closing chambers 3.4 and a mold opening chamber 5 are formed in the mold clamping cylinder 2 that moves the movable platen 1 in the mold closing direction and the mold opening direction. At the same time, the pressure receiving area of the second mold closing chamber 4 is made larger than the pressure receiving area of the first mold closing chamber 3, and the pressure receiving area of the mold opening chamber 5 is the sum of the pressure receiving areas of the first and second mold closing chambers 3. In addition to making the mold smaller, pressure oil is supplied to each chamber when the mold is closed, and the movable platen 1 is
is moved in the mold closing direction, and pressure oil is allowed to flow into the mold opening chamber 5 into the first and second mold closing chambers 3.4.
, pressure oil is supplied to the second mold closing chamber 3.4 to clamp the mold, and when the mold is opened, the first mold closing chamber 3 is communicated with the tank, and pressure oil is supplied to the node 2 mold closing chamber 4 and the mold opening chamber 5. is supplied, and the movable platen 1 is moved in the mold opening direction by the pressure receiving area difference, and the pressure oil in the second mold closing chamber 4 is caused to flow into the mold opening chamber 5.
この型締装置であれば、各室に圧油を供給制御すること
で可動盤１を早送りしたり、強い力で押しつけたりでき
るので、型開閉時間を短縮できると共に、大きな型締力
が得られる。With this mold clamping device, by controlling the supply of pressure oil to each chamber, the movable platen 1 can be moved quickly or pressed with strong force, so the mold opening/closing time can be shortened and a large mold clamping force can be obtained. .
かかる型締装置であると、第１型閉じ室３、第２型閉じ
室４、型開き室５が可動盤１の移動方向に直列に配設し
であるので、型締シリンダの全長が長くなってしまうか
ら、射出成形機やダイカスト機が大型となってしまう。In such a mold clamping device, the first mold closing chamber 3, the second mold closing chamber 4, and the mold opening chamber 5 are arranged in series in the moving direction of the movable platen 1, so the total length of the mold clamping cylinder is long. As a result, injection molding machines and die-casting machines become large.
そこで、本発明は圧油を供給制御することで早送り、型
締めできると共に、型締シリンダの全長を短くできるよ
うにした型締装置を提供することを目的とする。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a mold clamping device that can perform rapid feeding and mold clamping by controlling the supply of pressure oil, and can shorten the overall length of a mold clamping cylinder.
〔間通点を解決するための手段及び作用〕複数のシリン
ダを相互に平行に配設して可動盤１８を型閉じ方向に移
動する型閉じ室と可動盤１８を型開き方向に移動する第
１、第２型開き室と大気に開口した室を形成すると共に
、該型閉じ室、型開き室と油圧源２４、タンク２５との
間に、型閉じ室と第１型開き室とに油圧源２４の圧油を
供給しかつ第２型開き室をタンク２５に連通ずることで
受圧′面積差によって可動盤１８を型閉じ方向に移動す
る第１の状態及び型閉じ室にのみ圧油を供給し第１、第
２型開き室をタンク２５に連通ずる第２の状態並びに型
閉じ室と第１型開き室を連通してタンク２５に接続しか
つ第２型開き室に圧油を供給する第３の状態に切換えら
れる油圧制御機構２３゛を設けて、可動盤１８を早送り
したり、大きな力で締付けできると共に、全長を短くで
きるようにしたものである。[Means and operations for solving the gap point] A mold closing chamber in which a plurality of cylinders are arranged parallel to each other to move the movable platen 18 in the mold closing direction, and a mold closing chamber in which the movable platen 18 is moved in the mold opening direction. 1. A chamber opened to the atmosphere is formed with the second mold opening chamber, and a hydraulic pressure is provided between the mold closing chamber and the first mold opening chamber between the mold closing chamber and the mold opening chamber and the hydraulic source 24 and the tank 25. By supplying pressure oil from the source 24 and communicating the second mold opening chamber with the tank 25, the first state in which the movable platen 18 is moved in the mold closing direction due to the difference in receiving pressure area, and the pressure oil is supplied only to the mold closing chamber. a second state in which the first and second mold open chambers are communicated with the tank 25; a second state in which the mold closing chamber and the first mold open chamber are communicated and connected to the tank 25 and pressure oil is supplied to the second mold open chamber; A hydraulic control mechanism 23' that can be switched to a third state is provided, so that the movable platen 18 can be fast-forwarded, tightened with a large force, and the overall length can be shortened.
第１図に示すように、第１シリンダ１０内に第２シリン
ダ１１が同心状に配設されて第１シリンダ１０と第２シ
リンダ１１は平行となって型締シリンダ１２を構成して
いる。As shown in FIG. 1, a second cylinder 11 is disposed concentrically within a first cylinder 10, and the first cylinder 10 and second cylinder 11 are parallel to each other to form a mold clamping cylinder 12.
前記第１シリンダ１０はシリンダチューブ１３内にピス
トン杆１４を備えたピストン１５を嵌挿して第１型開き
室１６と大気に開口した室１７を形成し、そのピストン
杆１４が可動盤１８に連結しであると共に、前記ピスト
ン杆１４にはシリンダ孔１９が形成され、このシリンダ
孔１９内にピストン杆２０ａに設けたピストン２０が嵌
合して型閉じ室２１と第２型開き室２２を形成して第２
シリンダ１１を構成している。The first cylinder 10 has a piston 15 having a piston rod 14 inserted into the cylinder tube 13 to form a first mold opening chamber 16 and a chamber 17 open to the atmosphere, and the piston rod 14 is connected to a movable platen 18. In addition, a cylinder hole 19 is formed in the piston rod 14, and a piston 20 provided on the piston rod 20a is fitted into the cylinder hole 19 to form a mold closing chamber 21 and a second mold opening chamber 22. and second
It constitutes a cylinder 11.
前記各室は油圧制御機構２３で油圧源２４とタンク２５
とに接続制御される。Each of the chambers has a hydraulic control mechanism 23, a hydraulic power source 24, and a tank 25.
and the connection is controlled.
該油圧制御機構２３は第１、第２電磁弁２６゜２７を備
え、′Ｎ４１、第２電磁切換弁２６．’２７はバネ力で
中立位置Ｎとドレーン位置りとにそれぞれ保持されてい
る。The hydraulic control mechanism 23 includes first and second electromagnetic valves 26, 27, 'N41, and a second electromagnetic switching valve 26. '27 is held at the neutral position N and the drain position by spring force.
゛前記型閉・じ室２１の受圧面積Ａ１、第１、第２型開
き室１６．２２の受圧面積Ａ ２ ＋ Ａ ８はＡＩ
＞Ａ２ ＞八３となっている。゛Pressure receiving area A1 of the mold closing chamber 21, pressure receiving area A2 + A8 of the first and second mold opening chambers 16.22 is AI
>A2 >83.
次に作動を説明する。Next, the operation will be explained.
第２図のように、第１電磁切換弁２６の第１ソレノイド
２６ａを励磁して第１装置Ｉとすると共に、ソレノイド
２７ａを励磁して第２電磁切換弁２７を連通位置Ｐとす
ることで、油圧源２４の圧油を第１型開き室１６と型閉
じ室２１に供給し、第２型開き室２２をタンク２５に連
通する。As shown in FIG. 2, by energizing the first solenoid 26a of the first electromagnetic switching valve 26 to set the first device I, and by energizing the solenoid 27a to set the second electromagnetic switching valve 27 to the communication position P. , the pressure oil from the hydraulic source 24 is supplied to the first mold opening chamber 16 and the mold closing chamber 21, and the second mold opening chamber 22 is communicated with the tank 25.
これにより、受圧面積差（ＡＩ＞Ａ２）によってピスト
ン杆１４が前進して可動盤１８を型閉じ方向に移動し、
かつ第１型開き室１６内の圧油が型閉じ室２１に供給さ
れるから、ピストン杆１４は急速に前進して可動盤１８
を型閉じ方向に早送りできる。As a result, the piston rod 14 moves forward due to the pressure receiving area difference (AI>A2), moving the movable platen 18 in the mold closing direction,
In addition, since the pressure oil in the first mold opening chamber 16 is supplied to the mold closing chamber 21, the piston rod 14 rapidly moves forward and the movable platen 18
can be fast-forwarded in the direction of mold closing.
一可動盤１８がストロークエンドに達したら、第３図に
示すようにソレノイド２７ａを消磁して第２電磁切換弁
２７をドレーン位置りとする。When the first movable platen 18 reaches the stroke end, the solenoid 27a is demagnetized and the second electromagnetic switching valve 27 is placed in the drain position, as shown in FIG.
これにより、油圧源２４の圧油は型閉じ室２１にのみ供
給されてピストン杆１４を介して可動盤１８を押す力が
大きくなって大きな型締力が得られる。As a result, the pressure oil from the hydraulic power source 24 is supplied only to the mold closing chamber 21, and the force for pushing the movable platen 18 through the piston rod 14 increases, resulting in a large mold clamping force.
また、型開きする場合には第４図に示すように、第２ソ
レノイド２６ｂを励磁して第１電磁切換弁２６を第２位
置■とし、ソレノイド２７ａを励磁して第２電磁切換弁
２７を連通位置Ｐとする。In addition, when opening the mold, as shown in FIG. 4, the second solenoid 26b is energized to set the first electromagnetic switching valve 26 to the second position ■, and the solenoid 27a is energized to set the second electromagnetic switching valve 27. Let it be the communication position P.
これにより、油圧源２４の圧油は第２型開き室２２に供
給されると共に、型閉じ室２１内の圧油が第１型開き室
１６に流入してピストン杆１４が急速に後進するから、
可動盤１８を型開き方向に早送りできる。As a result, the pressure oil from the hydraulic source 24 is supplied to the second mold opening chamber 22, and the pressure oil in the mold closing chamber 21 flows into the first mold opening chamber 16, causing the piston rod 14 to rapidly move backward. ,
The movable platen 18 can be rapidly moved in the mold opening direction.
第５図は第２実施例を示し、ピストン２０のピストン杆
２０ａにシリンダ孔２８を形成し、このシリンダ孔２８
にピストン杆２９を嵌挿して第２の型閉じ室３０を形成
すると共に、この第２の型閉じ室３０と型閉じ室２１と
に圧油を同時に供給するようにしてあり、シリンダチュ
ーブ１３に固着したタイバー３１に沿って可動盤１８が
摺動自在となってる。FIG. 5 shows a second embodiment, in which a cylinder hole 28 is formed in the piston rod 20a of the piston 20.
A piston rod 29 is inserted into the cylinder tube 13 to form a second mold closing chamber 30, and pressure oil is simultaneously supplied to the second mold closing chamber 30 and the mold closing chamber 21. The movable platen 18 is slidable along the fixed tie bar 31.
第６図は第３実施例を示し、可動盤１８の両側に一対の
シリンダチューブ４０を設けると共に、そのピストン杆
をタイバー３１と兼用とし、かつピストン４１を設けて
第１型開き室４２と大気に開口した室４３を有する一対
の第１シリンダ４４を形成し、一対のタイバー３１を支
持するエンドプレート４５にシリンダチューブ４Ｂを固
着し、そのピストン４７のピストン杆４８ａを可動盤１
８の中央に固着して型閉じ室４８と第２型開き室４９を
有する第２シリンダ５０を形成して、相互に平行となっ
た一対の第１シリンダ４４と第２シリンダ５０とで型締
シリンダを構成しである。FIG. 6 shows a third embodiment, in which a pair of cylinder tubes 40 are provided on both sides of a movable platen 18, and the piston rods are also used as tie bars 31, and a piston 41 is provided to connect the first mold opening chamber 42 to the atmosphere. A pair of first cylinders 44 having a chamber 43 opened to the rear are formed, a cylinder tube 4B is fixed to an end plate 45 that supports a pair of tie bars 31, and a piston rod 48a of the piston 47 is connected to the movable platen 1.
8 to form a second cylinder 50 having a mold closing chamber 48 and a second mold opening chamber 49, and a pair of parallel first cylinders 44 and second cylinders 50 to clamp the mold. It consists of a cylinder.
なお、第１、第２型開き室４２．４９と型閉じ室４８は
前述と同様な油圧制御機構２３で油圧源２４とタンク２
５とに接続制御される。The first and second mold opening chambers 42 and 49 and the mold closing chamber 48 are controlled by a hydraulic pressure source 24 and a tank 2 by the same hydraulic control mechanism 23 as described above.
5 and is connected and controlled.
このようにすれば、前述と同様に型開閉作動できると共
に、タイバー３１をピストン杆と兼用しているから全体
がコンパクトになる。In this way, the mold can be opened and closed in the same manner as described above, and the tie bar 31 also serves as a piston rod, making the entire structure compact.
また、油圧制御機構２３は前述のものに限るのではなく
第７図に示すように第１、第２、第３電磁切換弁５１，
５２．５３を組み合せたものとしても良い。Furthermore, the hydraulic control mechanism 23 is not limited to the one described above, but as shown in FIG.
52.53 may be combined.
油圧制御機構２３を第１、第２、第３の状態に切換える
ことで可動盤１を型閉じ方向、型開き方向に早送りでき
ると共に、大きな力で型締めできる。By switching the hydraulic control mechanism 23 to the first, second, and third states, the movable platen 1 can be rapidly moved in the mold closing direction and the mold opening direction, and the mold can be clamped with a large force.
また、複数のシリンダに相互に並設しであるから全長を
短くできる。Further, since the cylinders are arranged in parallel with each other, the total length can be shortened.
また、大気に開口した室を形成したので、その室には何
らの配管をしなくとも各シリンダはスムーズに移動して
配管が簡単となる。Furthermore, since a chamber is formed that is open to the atmosphere, each cylinder can move smoothly without any piping in that chamber, making the piping simple.
第１図〜第７図は本発明の実施例を示し、第１図は第１
実施例の断面図、第２図、第３図、第４図は動作説明図
、第５図は第２実施例の断面図、第６図、第７図は第３
、第４実施例の断面図、第８図は従来例の断面図である
。
１８は可動盤、２３は油圧制御機構、２は油圧源、２５
はタンク。
第２図
第６図1 to 7 show embodiments of the present invention, and FIG. 1 is a first embodiment of the present invention.
2, 3, and 4 are operation explanatory diagrams. FIG. 5 is a sectional view of the second embodiment. FIGS. 6 and 7 are sectional views of the third embodiment.
, a sectional view of the fourth embodiment, and FIG. 8 is a sectional view of the conventional example. 18 is a movable platen, 23 is a hydraulic control mechanism, 2 is a hydraulic source, 25
is a tank. Figure 2 Figure 6
Claims (1)
閉じ方向に移動する型閉じ室と可動盤１８を型開き方向
に移動する第１、第２型開き室と大気に開口した室を形
成すると共に、該型閉じ室、型開き室と油圧源２４、タ
ンク２５との間に、型閉じ室と第１型開き室とに油圧源
２４の圧油を供給しかつ第２型開き室をタンク２５に連
通することで受圧面積差によって可動盤１８を型閉じ方
向に移動する第１の状態及び型閉じ室にのみ圧油を供給
し第１、第２型開き室をタンク２５に連通する第２の状
態並びに型閉じ室と第１型開き室を連通してタンク２５
に接続しかつ第２型開き室に圧油を供給する第３の状態
に切換えられる油圧制御機構２３を設けたことを特徴と
する型締装置。A mold-closing chamber in which a plurality of cylinders are arranged parallel to each other to move the movable platen 10 in the mold-closing direction, first and second mold-opening chambers in which the movable platen 18 is moved in the mold-opening direction, and a chamber opened to the atmosphere. At the same time, between the mold closing chamber, the mold opening chamber, the hydraulic source 24, and the tank 25, pressure oil from the hydraulic source 24 is supplied to the mold closing chamber and the first mold opening chamber, and a second mold opening chamber is formed. A first state in which the movable platen 18 is moved in the mold closing direction by communicating the chamber with the tank 25 due to the pressure receiving area difference, and a first state in which pressure oil is supplied only to the mold closing chamber and the first and second mold opening chambers are connected to the tank 25. In the second state of communication, and by communicating the mold closing chamber and the first mold opening chamber, the tank 25
A mold clamping device characterized in that it is provided with a hydraulic control mechanism 23 that is connected to and can be switched to a third state in which pressure oil is supplied to the second mold opening chamber.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12028387A JPS63286318A (en) | 1987-05-19 | 1987-05-19 | Mold clamping device |
| PCT/JP1988/000476 WO1988009257A1 (en) | 1987-05-19 | 1988-05-19 | Clamping system for injection molding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12028387A JPS63286318A (en) | 1987-05-19 | 1987-05-19 | Mold clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63286318A true JPS63286318A (en) | 1988-11-24 |
Family
ID=14782407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12028387A Pending JPS63286318A (en) | 1987-05-19 | 1987-05-19 | Mold clamping device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS63286318A (en) |
| WO (1) | WO1988009257A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0453723A (en) * | 1990-06-22 | 1992-02-21 | Daikin Ind Ltd | Injection molder and mold clamping device and injection device therein |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0665093A1 (en) * | 1994-01-31 | 1995-08-02 | Nissei Asb Machine Co., Ltd. | Apparatus and method of clamping mold |
| JP2000334798A (en) * | 1999-05-31 | 2000-12-05 | Aoki Technical Laboratory Inc | Hydraulic circuit for mold clamping device provided with freely movable core mold |
| JP4704064B2 (en) * | 2004-04-13 | 2011-06-15 | 東芝機械株式会社 | Clamping device and molding machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5144769U (en) * | 1974-09-27 | 1976-04-02 | ||
| JPS6233121Y2 (en) * | 1979-10-18 | 1987-08-25 | ||
| DE3044137C2 (en) * | 1980-11-24 | 1985-01-31 | Karl 7298 Loßburg Hehl | Mold clamping unit for receiving a plastic injection mold |
| DE3238111C1 (en) * | 1982-10-14 | 1984-03-29 | Karl 7298 Loßburg Hehl | Hydraulic device for the mold clamping unit of a plastic injection molding machine |
-
1987
- 1987-05-19 JP JP12028387A patent/JPS63286318A/en active Pending
-
1988
- 1988-05-19 WO PCT/JP1988/000476 patent/WO1988009257A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0453723A (en) * | 1990-06-22 | 1992-02-21 | Daikin Ind Ltd | Injection molder and mold clamping device and injection device therein |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1988009257A1 (en) | 1988-12-01 |
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