JPH0362537B2 - - Google Patents
Info
- Publication number
- JPH0362537B2 JPH0362537B2 JP58108931A JP10893183A JPH0362537B2 JP H0362537 B2 JPH0362537 B2 JP H0362537B2 JP 58108931 A JP58108931 A JP 58108931A JP 10893183 A JP10893183 A JP 10893183A JP H0362537 B2 JPH0362537 B2 JP H0362537B2
- Authority
- JP
- Japan
- Prior art keywords
- mounting plate
- hydraulic pressure
- mold clamping
- movable
- mold
- 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
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)
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、またそれに伴なつて可動型取
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つた。 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 panel must also be movable.
Compared to the case where a strong mold clamping device is installed on a fixed plate behind the movable mold mounting plate, this method has disadvantages such as a more complicated hydraulic circuit, more frequent failures, and higher costs.
また可動型取付盤と一緒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
給配管として使用される高圧ゴムホースの耐久性
や可撓性に限界があつて、特別な液圧給配管を配
設しなければ、実際に用いることができなかつ
た。 In addition, since the strong 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 achieve this, it is necessary to increase the hydraulic pressure required for strong mold clamping. However, there are limits to the durability and flexibility of the high-pressure rubber hose used as the hydraulic pressure supply piping, and it could not be used in practice unless special hydraulic pressure supply piping 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つて、その目的とすると
ころは、きわめて簡単な手段によつて、ゴムホー
スなどの可撓性を有する液圧給排管を不要とする
ことができる新たな構成の型締機構を提供するこ
とにある。 The present invention was devised to eliminate the drawbacks of the above-mentioned mold clamping mechanism, and its purpose is to provide a flexible hydraulic supply/drain system such as a rubber hose by extremely simple means. An object of the present invention is to provide a mold clamping mechanism with a new configuration that can eliminate the need for a pipe.
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、上記可動型取付
盤に設けて可動型取付盤内の液圧給排路に接続
し、液圧発生装置と強力型締装置とを同一の開閉
装置により往復動可能に構成してなる型締機構に
ある。 According to the present invention, a hydraulic pressure generating device for supplying high hydraulic pressure to a hydraulic cylinder of a strong mold clamping device provided on the movable mounting plate is provided on the movable mounting plate. The mold clamping mechanism is connected to a hydraulic pressure supply/discharge path within the mold, and is configured such that a hydraulic pressure generating device and a strong mold clamping device can be reciprocated 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４，４に移動自在に取付けて、上記固
定型取付盤３に対設してある。 In Fig. 1, reference numeral 1 in the figure is a movable mounting plate, which is movably attached to tie bars 4, 4 provided between the fixed plate 2 on the machine base and the fixed type mounting plate 3, and attached to the fixed type mounting plate 3. It is set up opposite.
また可動型取付盤１のタイバー４，４を挿通し
た背隅部には、ハーフナツ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が配設してあ
る。 In addition, a known restraining device 5, 5, such as one that opens and closes a half nut using a cam or hydraulic pressure, is attached to the back corner of the movable mounting board 1 through which the tie bars 4, 4 are inserted. A hydraulically operated opening/closing device 6 is disposed at the center of the back of the machine and the stationary platen 2.
７には可動型取付盤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に挿通した型締板１０
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１１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１２が設けてある。 7 is a powerful mold clamping device provided on the movable type mounting plate 1, which is connected to the hydraulic cylinder 8 in the movable type mounting plate and the mold clamping ram 9 protruding to the fixed type mounting plate 3 side and the tip of the ram, Mold clamping plate 10 inserted through tie bars 4, 4
It is composed of. In addition, the hydraulic cylinder 8
A hydraulic pressure supply/discharge passage 11 is bored in the upper part of the movable mounting board 1, and a hydraulic pressure generating device 12 is provided at the upper part of the movable mounting board 1.
この液圧発生装置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１１に接続した配管及びバルブ部材、液圧
及び流量制御手段などをもつて構成され、タンク
内の液圧をポンプにより高圧化して、液圧給排路
１１の一方より液圧シリンダ８に圧送する。 This hydraulic pressure generating device 12 is composed of a tank, a pump, an electric motor for driving the pump, piping and valve members connected to the hydraulic pressure supply/discharge path 11, hydraulic pressure and flow control means, etc., although the illustrations are omitted. , the hydraulic pressure in the tank is raised to high pressure by a pump, and the pressure is fed to the hydraulic cylinder 8 from one side of the hydraulic pressure supply/discharge path 11.
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１０と設けた分割金型１３
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
バー４，４に拘束してから、液圧発生装置１２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１３を
強力に型締することができる。 In the above embodiment, the movable mold mounting plate 1 is moved on the machine base together with the powerful mold clamping device 7 by the opening/closing device 6, and the fixed mold mounting plate 3 and the mold clamping plate 10 are connected to the divided mold 13.
Close or open the mold. After closing the mold, the restraint device 5 is activated to restrain the movable mold mounting plate 1 to the tie bars 4, 4, and then the hydraulic pressure generator 12 is activated to supply high hydraulic pressure to the hydraulic cylinder 8. Then, as the mold clamping ram 9 moves forward, the split mold 13 can be strongly clamped.
また成形後には、液圧発生装置１２のバルブを
型締ラム９が後退する側に切換えて、協力型開き
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１３の型開きを行うことができる。 After molding, the valve of the hydraulic pressure generator 12 is switched to the side where the mold clamping ram 9 retreats to perform cooperative mold opening. Thereafter, the restraint devices 5, 5 are released, the movable mold mounting plate 1 is pulled back by the opening/closing device 6, and the split mold 13 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７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に設けた場合である。 The embodiment shown in FIG. 2 is constructed by integrally connecting the opening/closing device 6 and the powerful mold clamping device 7, and the restraint device 5 is provided on the fixed platen 2.
上記可動型取付盤１内の液圧シリンダ８により
作動する型締ラム９はシリンダ状で、固定盤２側
に突出し、ラム先端周緑の四方に突設した嵌合突
片１４と、その嵌合突片１４との対応部分に同数
の凹所を有する回動自在な拘束板１５とによつ
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１１を経て液圧シリン
ダ８に圧送された高圧の液圧により、可動型取付
盤１と固定型取付盤３との間の分割金型１３を強
力型締するように構成されている。 The mold clamping ram 9 operated by the hydraulic cylinder 8 in the movable mounting plate 1 has a cylindrical shape, and protrudes toward the fixed plate 2 side, and has a fitting protrusion 14 protruding from all sides around the ram's tip. When the movable mounting plate 1 is restrained as shown in the figure by the rotatable restraining plate 15 having the same number of recesses in the corresponding portions of the mating pieces 14, the upper part of the movable mounting plate 1 The split mold between the movable type mounting plate 1 and the fixed type mounting plate 3 is generated by the high pressure hydraulic pressure fed from the hydraulic pressure generating device 12 installed in the hydraulic cylinder 8 through the hydraulic pressure supply/discharge path 11. 13 is configured to strongly clamp the mold.
また１６は型締ラム９に内装した開閉用ピスト
ン、１７は固定盤側に一端を固定したピストンロ
ツドで、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を構成し
ている。 In addition, 16 is an opening/closing piston built into the mold clamping ram 9, and 17 is a piston rod with one end fixed to the stationary plate, which is equipped with a hydraulic pressure supply/discharge passage inside and alternately applies hydraulic pressure to the liquid chambers on both sides of the opening/closing piston. This constitutes the opening/closing device 6 that supplies and discharges 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に高
圧の液圧を供給する液圧発生装置１２を、可動型
取付盤１に設けて、可動型取付盤内の液圧給排路
１１に接続し、その液圧発生装置１２を開閉装置
６により可動型取付盤１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るため、可撓性を有する
ものに比べて耐久性に優れ、超高圧の液圧（たと
えば250〜700Kg／cm2）が使用でき、また、強力型
締用の液圧シリンダの面積も1/2〜1/5の範囲に非
常に小さくすることができるので、それに伴なつ
て可動型取付盤や型締装置等の重量を軽減でき
る。更にまた配管工数が大巾に削滅され、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 on the movable mounting board 1 for supplying high hydraulic pressure to the hydraulic cylinder 8 for strong mold clamping provided inside the movable mounting board 1. It is connected to the hydraulic pressure supply/discharge path 11 in the movable mounting panel, and the hydraulic pressure generating device 12 is configured to be able to reciprocate together with the movable mounting panel 1 by the opening/closing device 6, so it is flexible. This eliminates the need for piping such as rubber hoses, which have the properties of rubber, and there is no need to worry about damage to the rubber hoses caused by opening and closing the mold. In addition, since the hydraulic pressure supply and discharge passages are fixedly provided, they are more durable than flexible ones, and can use ultra-high hydraulic pressure (for example, 250 to 700 kg/cm 2 ). Since the area of the hydraulic cylinder for clamping can be made extremely small in the range of 1/2 to 1/5, the weight of the movable mold mounting plate, mold clamping device, etc. can be reduced accordingly. Furthermore, the piping man-hours are greatly reduced, the device can be downsized, and the capacity of the hydraulic pump can also be small.
図面はこの発明に係る成形機の型締機構を例示
するもので、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……可動型取付盤、２……固定盤、３……固
定型取付盤、４……タイバー、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 mounting board, 2...Fixed board, 3...Fixed mounting board, 4...Tie bar, 6...Switching device,
7... Strong mold clamping device, 8... Hydraulic cylinder, 9...
...mold clamping ram, 10...mold clamping plate, 11...hydraulic pressure supply/discharge path, 12...hydraulic pressure generating device.
Claims (1)
の可動型取付盤の内部に設けられた液圧シリンダ
によつて可動型と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と、可
動型取付盤の背部に設けられた開閉装置とを具備
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、上記可動型取
付盤に設けて可動型取付盤内の液圧シリンダの液
圧給排路に接続してなることを特徴とする成形機
の型締機構。1. A movable mounting plate installed opposite to a fixed mounting plate, and a device for powerfully clamping the movable type and the fixed type using a hydraulic cylinder provided inside the movable type mounting plate;
In a mold clamping mechanism that includes a device that restrains the movable mounting plate during strong mold clamping and an opening/closing device provided on the back of the movable mounting plate, a hydraulic pressure generator that supplies high hydraulic pressure to the hydraulic cylinder is used. A mold clamping mechanism for a molding machine, characterized in that a device is provided on the movable mounting plate and connected to a hydraulic pressure supply/discharge path of a hydraulic cylinder in the movable mounting plate.
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 JPS60920A (en) | 1985-01-07 |
| JPH0362537B2 true 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) |
Families Citing this family (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 |
| US4839271A (en) * | 1987-06-26 | 1989-06-13 | E. I. Du Pont De Nemours And Company | Direct positive dimethine cyanine dyes containing 1-aryl-2-heteroaryl indole nucleus |
| JPH09225917A (en) * | 1996-02-23 | 1997-09-02 | Sato Kagaku Kogyo Kk | Method for molding of tile body |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644508Y2 (en) * | 1971-07-22 | 1981-10-19 | ||
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60920A (en) | 1985-01-07 |
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