JPS60920A - Mold clamping mechanism of molding machine - Google Patents
Mold clamping mechanism of molding machineInfo
- Publication number
- JPS60920A JPS60920A JP10893183A JP10893183A JPS60920A JP S60920 A JPS60920 A JP S60920A JP 10893183 A JP10893183 A JP 10893183A JP 10893183 A JP10893183 A JP 10893183A JP S60920 A JPS60920 A JP S60920A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pressure
- movable die
- mold clamping
- platen
- hydraulic
- 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.)
- Granted
Links
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
- B29C45/6707—Mould opening, closing or clamping devices hydraulic without relative movement between the piston and the cylinder of the clamping device during the mould opening or closing movement
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は可動型取付盤内に、強力型締装置の液圧シリ
ンダを設けた成形機の型締機構に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mold clamping mechanism for a molding machine in which a hydraulic cylinder of a strong mold clamping device is provided in a movable mold mounting plate.
この種の型締機構は、型締ラムのストロークが短かく済
むため、主として大型成形機の強力型締に採用されてい
るが、強力型締装置が可動型取付盤と共に往復動し、ま
たそれに伴なって可動型取付盤内の液圧シリンダーに高
圧の液圧を供給する液圧配管をも移°動可能に設けねば
ならないため、強力型締装置を可動型取付盤の背部の固
定盤に設ける場合よりも゛、油圧回路が複雑となり、故
障も多く、コスト高となるなどの欠点があった。This type of mold clamping mechanism is mainly used for strong mold clamping in large molding machines because the stroke of the clamping ram is short, but the powerful mold clamping device reciprocates with the movable mold mounting plate, and also At the same time, the hydraulic piping that supplies high hydraulic pressure to the hydraulic cylinder in the movable mounting board must also be movable, so a powerful mold clamping device is installed on a fixed plate behind the movable mounting board. Compared to the case where the hydraulic circuit is installed, the hydraulic circuit is more complicated, there are many failures, and the cost is higher.
捷だ可動型取付盤と一諸に強力型締装置をも移動させる
ため、その重量を出来るだけ軽量化することが望ましく
、そのためには強力型締に要する液圧をより高圧にする
ことが必要であるが、液圧給排管として使用されるゴム
ホースの耐久性や可撓性に限界があって、特別な液圧給
排管を配設しなければ、実際に用いることができなかっ
た。Since the powerful mold clamping device is also moved together with the movable mold mounting plate, it is desirable to reduce its weight as much as possible, and to do so, it is necessary to increase the hydraulic pressure required for powerful mold clamping. However, there are limits to the durability and flexibility of the rubber hoses used as hydraulic pressure supply and discharge pipes, and they could not be used in practice unless a special hydraulic pressure supply and discharge pipe was installed.
この発明は、上記型締機構の欠点を除去するために考え
られたものであって、その目的さするところは、きわめ
て簡単な手段によって、ゴムポースなどの可撓性を有す
る液圧給排管を不要とすることがてきる新たな構成の型
締機構を提供することにある。This invention was devised to eliminate the drawbacks of the above-mentioned mold clamping mechanism, and its purpose is to provide flexible hydraulic supply and discharge pipes such as rubber ports by extremely simple means. It is an object of the present invention to provide a mold clamping mechanism with a new configuration that can be made unnecessary.
上記目的によるこの発明は、可動型取付盤に設けられた
強力型締装置の液圧シリンダに、高圧の液圧を供給する
液圧発生装置を、その液圧シリンダの近傍に一体的に設
け、液圧発生装置と強力型締装置とを同一の開閉装置に
よシ往復動可能に構成してなる型締機構にある。According to the above-mentioned object, the present invention includes a hydraulic pressure generating device that supplies high hydraulic pressure to a hydraulic cylinder of a powerful mold clamping device provided on a movable mold mounting plate, which is integrally provided in the vicinity of the hydraulic cylinder. The mold clamping mechanism includes a hydraulic pressure generating device and a strong mold clamping device configured to be movable back and forth by the same opening/closing device.
以下この発明を図示の例により詳細に説明する。The present invention will be explained in detail below using illustrated examples.
第１図において、図中（１）は可動型取付盤で、機台上
の固定盤（２）と固定型取付盤（３）とにわたり設けた
タイバーｆ４） （Ｊ Ｋ移動自在に取付けて、上記固
定型取付盤（３）に対設しである。In Fig. 1, (1) in the figure is a movable mounting plate, and the tie bar f4) is provided between the fixed plate (2) on the machine base and the fixed type mounting plate (3). It is installed opposite to the above-mentioned fixed type mounting board (3).
また可動型取付盤（１１のタイ、、＜ −（４） （４
）を挿通した背隅部には、・・−フナットをカムまたは
液圧にて開閉するなどの公知の拘束装置（５） （５）
が取付けてあり、かつ可動型取付盤（１）の背部中央と
上記固定盤（２）とには液圧作動の開閉装置（６）が配
設しである。Also, a movable mounting board (11 ties, < -(4) (4
) is inserted into the back corner, and a known restraint device (5) such as one that opens and closes the nut using a cam or hydraulic pressure (5)
is attached, and a hydraulically operated opening/closing device (6) is provided at the center of the back of the movable mounting plate (1) and the fixed plate (2).
（７）は可動型取付盤（１）に設けた強力型締装置で、
可動型取付盤内の液圧シリンダ８と、固定型取付盤（３
）側に突出した型締ラム（９）及びラム先端にと連結し
、タイバー（４） （４） Ｋ挿通した型締板ＱＯとか
ら構成されている。また上記液圧シリンダ（８）の液圧
給排路０１）は可動型取付盤（１）の上部内に穿設され
、かつ可動型取付盤（１）の上部には液圧発生装置（１
２）が設けである。(7) is a strong mold clamping device installed on the movable mold mounting board (1).
The hydraulic cylinder 8 in the movable mounting board and the fixed mounting board (3
It consists of a mold clamping ram (9) protruding to the ) side and a mold clamping plate QO connected to the tip of the ram and having a tie bar (4) (4) inserted through it. Further, the hydraulic pressure supply/discharge passage 01) of the hydraulic cylinder (8) is bored in the upper part of the movable mounting plate (1), and the hydraulic pressure generating device (1) is provided in the upper part of the movable mounting plate (1).
2) is a provision.
との液圧発生装置（１２）は、図は省略したが、タンク
とポンプ及びポンプ駆動用電動機、上記液圧給排路０１
）に接続した配管及びパルプ部材、液圧力、流量制御手
段などをもって構成され、タンク内の圧液をポンプによ
シ高圧化して、液圧給排路（ＩＩ）の一方よシ液圧シリ
ンダ（８）に圧送する。The hydraulic pressure generating device (12) is not shown in the figure, but it includes a tank, a pump, a pump driving electric motor, and the hydraulic pressure supply/discharge path 01.
), the hydraulic cylinder ( 8).
上記実施例では、開閉装置（６）により強力型締装置（
７）と共に可動型取付盤（１）が機台上を移動し、固定
型取付盤（３）と型締板ＱＯ）とに設けた分割金型０３
）を型閉じ或は型開きする。また型閉じ後において、拘
束装置（５）を作動し、可動型取付盤（１）をタイツ＜
−（４） （４） Ｋ拘束してから、液圧発生装置０２
）を作動して、液圧シリンダ（８）に高圧の液圧を供給
すると、型締ラム（９）の前進により、分割金型θ３）
を強力に型締することができる。In the above embodiment, the strong mold clamping device (
7), the movable mounting board (1) moves on the machine base, and the split mold 03 provided on the fixed mounting board (3) and mold clamping plate QO)
) to close or open the mold. Also, after the mold is closed, the restraint device (5) is activated and the movable mold mounting plate (1) is tightened.
-(4) (4) After K restraint, hydraulic pressure generator 02
) is activated to supply high hydraulic pressure to the hydraulic cylinder (8), the mold clamping ram (9) moves forward and the split mold θ3)
can be strongly clamped.
また成形後には、液圧発生装置０２のバルブを型締ラム
（９）が後退する側に切換えて、強力型開きを行い。し
かるのち拘束装置（５） （５）を解除し、開閉装置（
６）により可動型取付盤（１）を引戻して分割金型０３
）の型開きを行うことができる。After molding, the valve of the hydraulic pressure generator 02 is switched to the side where the mold clamping ram (9) retreats, and the mold is opened forcefully. After that, the restraint device (5) (5) is released and the opening/closing device (
6), pull back the movable mold mounting plate (1) and separate the split mold 03.
) can be opened.
第２図に示す実施例は、上記開閉装置（６）と強力型締
装置（力とを一体的に連結して構成し、また拘束装置（
５）を固定盤（２）側に設けた場合である。The embodiment shown in FIG. 2 is configured by integrally connecting the opening/closing device (6) and the strong mold clamping device (force), and also has a restraining device (
5) is provided on the fixed platen (2) side.
上記可動型取付盤（１）内の液圧シリンダ（８） Ｋよ
逆作動する型締ラム（９）はシリンダ状で、固定盤（２
）側νこ突出し、ラーム先端周縁の四方に突設した嵌合
突片０４）と、その嵌合突片ａ（イ）との対応部分に同
数の凹所を有する回動自在な拘束板（国とによって、可
動型取付盤（１）が図示のように拘束されているとき、
可動型取付盤（１）の上部に設けた液圧発生装置（１２
）から、液圧給排路（ＩＩ）を経て液圧シリンダ（８）
に圧送された高圧の液圧によシ、可動型取付盤（１）と
固定型取付盤（３）との間の分割金型０３）を強力型締
するように構成されている。The hydraulic cylinder (8) in the movable mounting plate (1) above, and the mold clamping ram (9) that operates in reverse to K, are cylindrical in shape, and the fixed plate (2
) side ν protruding, a fitting protrusion 04) protruding from all sides of the ram tip periphery, and a rotatable restraint plate having the same number of recesses in the corresponding portions of the fitting protrusion a (a). Depending on the country, when the movable mounting plate (1) is restrained as shown,
The hydraulic pressure generator (12) installed on the top of the movable mounting board (1)
) from the hydraulic cylinder (8) via the hydraulic supply/discharge path (II).
The structure is such that the divided mold 03) between the movable mounting plate (1) and the fixed mounting plate (3) is strongly clamped by the high-pressure liquid pressure pumped into the mold.
また（１Ｇ）は型締ラム（９）に内装した開閉用ピスト
ン、θ７）は固定盤側に一端を固定したピストンロンド
で、内部に液圧給排路を備え、開閉用ピストン両側の液
室に交互に液圧を給排して、可動型取付盤（１）を高速
移動させる上記開閉装置（６）をＪｌＩＩｉ成している
。In addition, (1G) is an opening/closing piston built into the mold clamping ram (9), and θ7) is a piston rond with one end fixed to the stationary plate, with an internal hydraulic pressure supply/discharge path and a liquid chamber on both sides of the opening/closing piston. The opening/closing device (6) is configured to alternately supply and discharge hydraulic pressure to move the movable mounting board (1) at high speed.
この発明は上述のように、可動型取付盤（＋１の内部に
設けられた強力型締用の液圧シリンダ（８）の近傍に液
圧発生装置（１２）を一体的に設け、その液圧発生装置
Ｏａを開閉装置（６）によシ強力型締装置（７）と共に
往復動可能に構成してなるものであるから、可撓性を有
するゴムホースなどの配管が不要となり、型開閉に伴う
ゴムホースなどの損傷の心配がなくなる。また液圧給排
路は固定して設けられろため、可撓性を有するものに比
べて耐圧性に優れ、超高圧の液圧（たとえば２５０〜７
００ Ｋｇ／’ａｒｔ ）が使用でき、また、強力型締
用の液圧シリンダの面積も％〜ＩＡの範囲に非常に小さ
くすることができるのて、それに伴なって可動型取付盤
や型締装置等の重摺を軽減できる。更にまた配管工数が
大（１〕に削減され、装置の小型化が可能となるばかり
か、液圧ポンプの容量も小さくて済むなどの特徴を有す
る。As described above, this invention provides a hydraulic pressure generating device (12) integrally in the vicinity of a hydraulic cylinder (8) for strong mold clamping provided inside a movable mold mounting board (+1), and Since the generator Oa is configured to be able to reciprocate together with the strong mold clamping device (7) by the opening/closing device (6), piping such as flexible rubber hoses is not required, and the opening/closing device (6) eliminates the need for piping such as flexible rubber hoses. There is no need to worry about damage to rubber hoses, etc.In addition, since the hydraulic pressure supply and discharge passages are fixed, they have superior pressure resistance compared to flexible ones, and can withstand extremely high hydraulic pressure (for example, 250 to 7
00 Kg/'art) can be used, and the area of the hydraulic cylinder for powerful mold clamping can be made extremely small within the range of % to IA. It can reduce heavy sliding of equipment, etc. Furthermore, the number of piping steps can be reduced to a large number (1), which not only makes it possible to downsize the device, but also allows the capacity of the hydraulic pump to be small.
図面はこの発明に係る成形機の型締機構を例示するもの
て、第１図は第１実施例の一部縦断側面図、第２図は第
２実施例の縦断側面図である。
１・・可動型取伺盤、２・・固定盤、３・・固定型取付
盤、４・・タイツ＜−、６・・開閉装置、７・・強力型
締装置、８・・液圧シリンダ、９・・型締ラム、１０・
・型締板、１１・・液圧給排路、１２・・液圧発生装置
。
、・−」The drawings illustrate a mold clamping mechanism of a molding machine according to the present invention, and FIG. 1 is a partially longitudinal side view of the first embodiment, and FIG. 2 is a longitudinal side view of the second embodiment. 1. Movable pick-up board, 2. Fixed board, 3. Fixed mounting board, 4. Tights <-, 6. Opening/closing device, 7. Strong mold clamping device, 8. Hydraulic cylinder. , 9... mold clamping ram, 10...
- Mold clamping plate, 11...Liquid pressure supply/discharge path, 12...Liquid pressure generation device. ,・-”
Claims (1)
付盤の内部に設けられだ液圧シリンダによって可動型を
固定型に強力型締する装置と、強力型締時に可動型取付
盤を拘束する装置さ、可動型取付盤の背部に設けられた
開閉装置りを具備する型締機構において、上記液圧シリ
ンダに高圧の液圧を供給する液圧発生装置を、液圧シリ
ンダの近傍に一体的に設け、その液圧発生装置を上記開
閉装置によシ強力型締装置吉共に往復動可能に構成して
なることを特徴きする成形機の型締機構。A movable mounting plate opposite to the fixed mounting plate, a device installed inside the movable mounting plate to forcefully clamp the movable mold to the fixed mold using a hydraulic cylinder, and a movable mounting plate for strong clamping. In a mold clamping mechanism equipped with an opening/closing device provided on the back of a movable mounting plate, a hydraulic pressure generating device that supplies high hydraulic pressure to the hydraulic cylinder is installed near the hydraulic cylinder. 1. A mold clamping mechanism for a molding machine, wherein the hydraulic pressure generating device is configured to be able to reciprocate with the opening/closing device and the strong mold clamping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10893183A JPS60920A (en) | 1983-06-17 | 1983-06-17 | Mold clamping mechanism of molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10893183A JPS60920A (en) | 1983-06-17 | 1983-06-17 | Mold clamping mechanism of molding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60920A true JPS60920A (en) | 1985-01-07 |
| JPH0362537B2 JPH0362537B2 (en) | 1991-09-26 |
Family
ID=14497281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10893183A Granted JPS60920A (en) | 1983-06-17 | 1983-06-17 | Mold clamping mechanism of molding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60920A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4521841A (en) * | 1982-07-28 | 1985-06-04 | Reliance Electric Company | Peak charging circuit providing for improved loop gain and common mode noise rejection |
| JPS61199920A (en) * | 1985-02-28 | 1986-09-04 | Nissei Plastics Ind Co | Mold clamping device of injection molder |
| JPS6421439A (en) * | 1987-06-26 | 1989-01-24 | Du Pont | Dimechincyanine pigment containing 1-aryl- 2-heteroaryl indole nucleus for direct positive |
| JPH09225917A (en) * | 1996-02-23 | 1997-09-02 | Sato Kagaku Kogyo Kk | Molding method for tile base |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4823031U (en) * | 1971-07-22 | 1973-03-16 | ||
| JPS4827339U (en) * | 1971-08-07 | 1973-04-02 | ||
| JPS56147905A (en) * | 1980-04-14 | 1981-11-17 | Takeshi Kuroda | Liquid pressure type cylinder drive unit |
-
1983
- 1983-06-17 JP JP10893183A patent/JPS60920A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4823031U (en) * | 1971-07-22 | 1973-03-16 | ||
| JPS4827339U (en) * | 1971-08-07 | 1973-04-02 | ||
| JPS56147905A (en) * | 1980-04-14 | 1981-11-17 | Takeshi Kuroda | Liquid pressure type cylinder drive unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4521841A (en) * | 1982-07-28 | 1985-06-04 | Reliance Electric Company | Peak charging circuit providing for improved loop gain and common mode noise rejection |
| JPS61199920A (en) * | 1985-02-28 | 1986-09-04 | Nissei Plastics Ind Co | Mold clamping device of injection molder |
| JPS6421439A (en) * | 1987-06-26 | 1989-01-24 | Du Pont | Dimechincyanine pigment containing 1-aryl- 2-heteroaryl indole nucleus for direct positive |
| JPH09225917A (en) * | 1996-02-23 | 1997-09-02 | Sato Kagaku Kogyo Kk | Molding method for tile base |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0362537B2 (en) | 1991-09-26 |
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