公开(公告)号：US4968239A

公开(公告)日：1990-11-06

申请号：US167854

申请日：1988-02-17

Applicant: Yoshiharu Inaba ,  Fumio Mitoguchi ,  Hiromasa Yamashita

Inventor： Yoshiharu Inaba ,  Fumio Mitoguchi ,  Hiromasa Yamashita

IPC: B22D17/26 ,  B29C45/66 ,  B29C45/76 ,  B29C45/80

CPC classification number: B29C45/66 ,  Y10S425/223 ,  Y10T74/18696 ,  Y10T74/19014

Abstract: A motor-operated, direct-pressure type mold clamping apparatus is capable of high-speed mold closing and opening operations and of producing a required mold clamping force, without the use of a large-sized motor. In the mold opening and closing operations, a ball screw, in engagement with a ball nut which is movable in one with a moving platen, is rotated at high speed by a motor through gears and a clutch, so that a die is opened and closed at high speed. In a mold clamping operation, the ball screw is driven with a large rotatory force transmitted through a clutch and gears which, having a high reduction ratio, serve to increase the rotatory force of the motor. Thus, dies are clamped with a large clamping force.

公开(公告)号：US4822274A

公开(公告)日：1989-04-18

申请号：US146265

申请日：1988-01-20

Applicant: Harry Chan ,  Basilio Yi

Inventor： Harry Chan ,  Basilio Yi

IPC: B29C33/20 ,  B29C45/67 ,  B29C49/56

CPC classification number: B29C49/56 ,  B29C33/202 ,  B29C45/6728 ,  Y10S425/223

Abstract: A hydraulic clamp unit for a molding apparatus has a pair of opposed complimentary mold halves attached accordingly to a pair of opposed platens suspended on roller guides and moving toward each other into engagement of the mold halves to form a mold cavity surrounding a molded article of a thermoplastic material. The unit is provided with main clamp cylinders of a pull type and having piston rod chambers pressurized to exert pressure on the platens during formation of the article. Rapid movement of the platens is achieved by means of kicker cylinders having piston chambers and piston rod chambers communicating with each other. The main cylinders are locked to one of the platens by means of hydraulic mechanisms.

Abstract translation: 用于模制设备的液压夹具单元具有一对相对的互补半模，其相应地安装在悬挂在滚子导轨上的一对相对的压板上，并且彼此相向地移动以与半模的接合形成围绕模制品的模腔 热塑性材料。 该单元设置有拉动式的主夹紧缸，并且在制品形成期间具有加压压力以在压板上施加压力的活塞杆室。 压板的快速移动通过具有彼此连通的活塞室和活塞杆室的冲击缸实现。 主缸通过液压机构锁定在一个压板上。

公开(公告)号：US4588364A

公开(公告)日：1986-05-13

申请号：US718803

申请日：1985-04-01

Applicant: Robert D. Schad

Inventor： Robert D. Schad

IPC: B30B1/14 ,  B22D17/26 ,  B29C45/66 ,  B29C45/68 ,  B29C45/76 ,  B30B11/02

CPC classification number: B30B1/14 ,  B29C45/661 ,  B29C45/681 ,  Y10S425/221 ,  Y10S425/223

Abstract: A clamp mechanism for selectively locking and unlocking a first member in a first position relative to a second member comprises a linkage system connecting the first and second members and drive means for articulating the linkage system for moving the first member relative to the second member. A fluid link is provided for locking the first member in position relative to the second member wherein the fluid link is actuated upon sensing the first member approaching the first position.

Abstract translation: 用于相对于第二构件在第一位置选择性地锁定和解锁第一构件的夹紧机构包括连接第一构件和第二构件的联动系统以及用于铰接连杆系统以使第一构件相对于第二构件移动的驱动装置。 提供了流体连杆，用于将第一构件相对于第二构件锁定在适当位置，其中当感测到接近第一位置的第一构件时致动流体连杆。

公开(公告)号：US3990827A

公开(公告)日：1976-11-09

申请号：US565602

申请日：1975-04-07

Applicant: Ernest J. Maroschak

Inventor： Ernest J. Maroschak

IPC: B26F1/00 ,  B29C47/00 ,  B29C49/00 ,  F16L37/084 ,  B29D23/03

CPC classification number: F16L37/084 ,  B26F1/0015 ,  B26F1/0023 ,  B29C49/0021 ,  B29C2793/0045 ,  B29C2793/009 ,  B29C47/0023 ,  B29C47/0033 ,  B29C47/0054 ,  B29C47/0066 ,  B29L2023/18 ,  B29L2023/183 ,  Y10S425/223

Abstract: Apparatus for continuously making corrugated plastic pipes having enlarged coupler collars on one end thereof by continuously extruding a tube of plastic material into a molding zone especially constructed to mold the tube into a series of successively closely spaced body-forming lengths of annularly corrugated pipe with short integral relatively enlarged sleeves interconnecting adjacent body-forming lengths. The thus molded tube is severed along a line about halfway between opposite ends of each successive sleeve to form each sleeve into a pair of separate coupler collars, and the molded tube also is severed along a line about halfway between opposite ends of each corrugated body-forming length thereof. The molding zone is constructed so as to form a plurality of latch members integral with and extending interiorly from each coupler collar, which latch members are adapted to engage the ribs on the opposite end of another like pipe for releasable connection therewith.

Abstract translation: 用于连续地制造波纹塑料管的装置，其一端具有扩大的联轴器环，其通过将塑料材料管连续挤出到模制区中，特别构造成将管模制成一系列连续紧密间隔的体形成长度的具有短路的环形波纹管 整体相对放大的袖子相互连接相邻的身体形成长度。 如此模制的管沿着每条连续套管的相对端之间的中间的一条线切断，以将每个套管形成一对单独的联接器套环，并且模制管也沿着每条波纹体相对端之间的中间部分的一条线切断， 形成长度。 模制区域被构造成形成与每个联接器套环一体并且从内部延伸的多个闩锁构件，所述闩锁构件适于与另一个类似管道的相对端上的肋接合以与其可释放地连接。

公开(公告)号：US3905741A

公开(公告)日：1975-09-16

申请号：US40961673

申请日：1973-10-25

Applicant: PONCET PIERRE

Inventor： PONCET PIERRE

IPC: B29C45/67 ,  B29F1/06

CPC classification number: B29C45/6714 ,  B29C45/6707 ,  Y10S425/221 ,  Y10S425/223

Abstract: A hydraulic press for molding plastic materials and the like, of the type in which the moving platen is controlled by at least one long stroke approach ram, and also by at least one short stroke clamp ram which, when the mold is closed by the approach ram, acts on at least one pushbar interposed between the moving platen of the press and a stationary plate, while at the time of opening of the mold, means allow the pushbars to pass through the openings of the stationary platen, the clamp ram (11, 12), which is integral with the moving platen (6) of the press, passing freely in a known fashion through an opening (2a) of the stationary plate (2) to open the mold (7, 8), and blocked in front of the said opening by a retractable stop device (13) in order to assure the clamping of the mold after the closing thereof by the approach ram (9, 10), thus acting as a retractable, extensible pushplate between the two plates.

Abstract translation: 用于模制塑料材料等的液压机，其中移动压板由至少一个长行程接近柱塞控制的类型，以及至少一个短行程夹紧柱，当模具通过接近闭合时 压头作用在插入压机的移动压板和固定板之间的至少一个推杆上，而在模具打开时，装置允许推杆穿过固定压板的开口，夹紧柱（11） ，12），其与压机的移动压板（6）成一体，以已知的方式通过固定板（2）的开口（2a）自由地通过，以打开模具（7,8），并阻塞在 通过可伸缩止动装置（13）在所述开口的前面，以便确保模具在通过接近推杆（9,10）关闭之后被夹紧，从而用作在两个板之间的可伸缩的可延伸的推板。

公开(公告)号：US3604499A

公开(公告)日：1971-09-14

申请号：US3604499D

申请日：1969-12-04

Applicant: PIC AIR INC

Inventor： PICKER FRANCK M

IPC: B22D17/00 ,  B22D17/24 ,  B22D33/04

CPC classification number: B22D17/26 ,  Y10S425/223

Abstract: A fast-acting diecasting machine including in combination, a die having at least one die platen which is reciprocatable between open and closed positions, a prime mover, reciprocation means disposed between said movable die platen and said prime mover for selectively and intermittently reciprocating said movable die platen between open and closed positions, transfer means for moving castings from said die cooperatively connected to said reciprocation means, means selectively and intermittently connecting said transfer means to said prime mover, means maintaining said reciprocation apparatus in a substantially force-balanced state during at least a major part of a platen reciprocation cycle, and means for injecting liquid matter into the die when it is closed. There is also disclosed a novel method for die casting.

公开(公告)号：US3604495A

公开(公告)日：1971-09-14

申请号：US3604495D

申请日：1969-12-04

Applicant: PIC AIR INC

Inventor： PICKER FRANCK M

IPC: B22D27/10

CPC classification number: Y10S425/223

Abstract: In a method for diecasting molten metal employing a split die, one platen of which is fixed and one platen of which is reciprocatable between open and closed positions, the improved step of maintaining the platen reciprocation apparatus in a force-balanced state during a major part of such reciprocation cycle.

公开(公告)号：US3603210A

公开(公告)日：1971-09-07

申请号：US3603210D

申请日：1968-09-23

Applicant: FLORJANCIC PETER

Inventor： FLORJANCIC PETER

IPC: F15B15/14 ,  B29C45/67 ,  F15B15/17 ,  F15B13/04

CPC classification number: B29C45/6771 ,  Y10S425/223

Abstract: A hydraulic apparatus is provided for moving a member under the action of a small force and for subsequently urging the member against a stop under the action of a large force. The operations are carried out with the aid of pumps and hydraulic pistons which are mechanically connected to the member. The apparatus may be used, e.g., in injection molding machines or blowing machines. A double-acting, working and compensating piston is connected to the member to be moved, e.g., to the movable mold-mounting plate. The pressure chambers disposed in the cylinder at both ends of the piston are hydraulically connected to each other by an opening in the piston. The compensating pressure chamber communicates through an outlet with a chamber which is under a pressure that is lower than the working pressure. The outlet is preferably adapted to be closed. A valve member is provided for the opening in the piston. The piston is provided with sealing means in its opening sleeve, which under the hydraulic working pressure cooperates with the valve member to provide a seal between the working and compensating chambers as soon as the compensating chamber is pressure relieved through the outlet. The valve member is adjustable in the stroke direction.

公开(公告)号：US3590440A

公开(公告)日：1971-07-06

申请号：US3590440D

申请日：1969-05-22

Applicant: NEW BRITAIN MACHINE CO

Inventor： COOK FRANCIS W JR

IPC: B29C45/67 ,  B29F1/00

CPC classification number: B29C45/67 ,  Y10S425/223

Abstract: The invention contemplates vertical-action hydraulic moldpositioning and clamp mechanism carried above the region of moldfilling, in a plastics injection-molding machine having provision for selective horizontal discharge of plasticized melt. The nature of the mold-clamp mechanism is such that it will selfadapt to bending deflections of frame parts, in the presence of high clamp-force pressures. In the hydraulic mechanism disclosed, major displacements are achieved by a relatively low-pressure system, whereas clamp forces are generated by a relatively highpressure system. For safety, the high-pressure operation involves a minimum of displaced fluid, and means are provided to automatically vent the high-pressure system in the event of such downward positioning of parts as is indicative of failure to install a complete mold.

公开(公告)号：US3571855A

公开(公告)日：1971-03-23

申请号：US3571855D

申请日：1968-07-03

Applicant: STUBBE MASCHINENFABRIK GMBH

Inventor： HOFER HEINZ KARL ,  REHMSMEIER FRIEDRICH

IPC: B29C45/67 ,  B29F1/00

CPC classification number: B29C45/6778 ,  Y10S425/223

Abstract: A device for limiting the stroke on hydraulically displaced mold-carrier units of injection molding machines, by means of an abutment element which is infinitely variably adjustable relative to a setting or adjusting device arranged in the axial direction of the actuating piston of the mold-carrying unit, and which by cooperation with the actuating piston, limits the stroke end position thereof.