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公开(公告)号：US5129806A
公开(公告)日：1992-07-14
申请号：US711986
申请日：1991-06-07
Applicant: Karl Hehl
Inventor： Karl Hehl
CPC classification number: B29C45/6771 , B29C45/67 , B29C2045/6785
Abstract: The hydraulic system comprises a 4/4-way valve, which is adapted to control the velocity of the mold-closing operation and the fluid pressure during said mold-closing movement and to assume three consecutive control positions, in each of which fluid pressure is applied to a stationary piston of an advance-retract cylinder from a first cylinder chamber, which is nearer to the mold. One of said control positions is a differential control position, in which pressure fluid displaced from the second cylinder chamber of said advance-retract cylinder, which second chamber is remote from the mold, is supplied to a pressure conduit through a branch passage, which includes a non-return valve. The differential control position is preceded and succeeded by a transitional control position, in which the pressure fluid displaced from the second cylinder chamber is returned through the 4/4-way valve to a reservoir. As a result of that arrangement the production rate of the injection molding machine can considerably be increased whereas only gradual velocity and pressure chambers are effected during the mold-closing movement.
Abstract translation: 液压系统包括四通阀，其适于在所述模具关闭运动期间控制模具关闭操作的速度和流体压力，并且在每个流体压力为 从更靠近模具的第一气缸室施加到提前缩回缸的静止活塞。 所述控制位置中的一个是差动控制位置，其中从第二室远离模具的前进回缩气缸的第二气缸室排出的压力流体通过分支通道供应到压力管道，该分支通道包括 止回阀。 差速控制位置在过渡控制位置之前和之后，其中从第二气缸室移位的压力流体通过四通阀返回到储液器。 作为这种安排的结果，注射成型机的生产率可以显着提高，而在闭模运动期间只能实现逐渐的速度和压力室。
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公开(公告)号：US5078202A
公开(公告)日：1992-01-07
申请号：US583464
申请日：1990-09-17
Applicant: Shen H. Bai
Inventor： Shen H. Bai
IPC: B22D17/26
CPC classification number: B22D17/26
Abstract: This disclosure concerns dies for die casting machines having a stationary or cover die and a movable or ejector die which has a movable slide mounted thereon. A tapered trough is provided across the slide and into opposite sides of the movable die, and the cover die is provided with a floating wedge that fits into the full length of this trough for positioning and locking the slide with respect to the movable die on which this slide is mounted. The floating wedge may be held in the cover die by flanges on the wedge which loosely fit in grooves in the cover die. The tapers on the wedge and the sides of the trough are complimentary for locking the movable die parts together when all the die parts are closed for filling the cavity formed by the die parts with molten metal.
Abstract translation: 本公开涉及具有固定或覆盖模具的压铸机和具有安装在其上的可移动滑块的可移动或喷射模具的模具。 锥形槽设置在滑动件的两侧和可移动模具的两侧之间，并且盖模具设置有浮动楔形件，该浮动楔形件装配在该槽的整个长度上，用于相对于其上的可动模具定位和锁定滑块 此幻灯片已安装。 浮动楔块可以通过楔形物上的凸缘保持在盖模具中，该凸缘松动地配合在盖模具中的凹槽中。 当所有的模具部件被关闭以便用由熔融金属填充由模具部件形成的空腔时，楔形件和槽的侧面上的锥形是互补的，用于将可动模具部件锁定在一起。
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公开(公告)号：US5059365A
公开(公告)日：1991-10-22
申请号：US524312
申请日：1990-05-17
Applicant: Ronald A. Hertzer , Jeffrey A. Chappell
Inventor： Ronald A. Hertzer , Jeffrey A. Chappell
CPC classification number: B29C45/1751 , B29C45/7653
Abstract: A method and apparatus for automatically setting the die height platen on a toggle-operated injection molding machine to achieve a desired mold clamping force. A control is provided and contains information relating a desired clamp tonnage with a toggle crosshead displacement, in order to permit setting the die height platen for a particular set of molds so that the clamp, when operated, will automatically provide the desired clamping force between the mold members. The adjustment is provided by moving the die height platen in response to deviations from a predetermined set of conditions, the die height platen being moved by an hydraulic motor and chain drive to shift the die height platen along guide rods that extend between the die height platen and a stationary mold platen.
Abstract translation: 一种用于在肘节式注射成型机上自动设置模具高度压板以实现期望的模具夹紧力的方法和装置。 提供控制装置并且包含有关期望的夹紧吨位与切换十字头位移的信息，以便允许为特定的一组模具设置模具高度压板，使得当操作时夹具将自动地在夹具之间提供期望的夹紧力 模具会员 通过根据偏离预定条件的模具移动模具高度压板来提供调整，模具高度压板由液压马达和链条驱动器移动，以沿着在模具高度压板之间延伸的导向杆移动模具高度压板 和固定模具台板。
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公开(公告)号：US4961372A
公开(公告)日：1990-10-09
申请号：US348306
申请日：1989-05-05
Applicant: Heinrich Leonhartsberger
Inventor： Heinrich Leonhartsberger
CPC classification number: B29C45/67
Abstract: A closing mechanism of an injection molding machine has a piston-cylinder unit to be pressurized hydraulically. Two partial strokes can be carried out in the unit, of which the first can be run through faster than the second. A displacement tube (7) extends into a main cylinder chamber (6) and into an inner cylinder chamber (4) of a piston (2) of the piston-cylinder unit. The displacement tube (7) is fastened to an end wall of the main cylinder (1) and is open at its free end. The piston (2) is designed as a plunger and is spaces on all sides from the cylinder wall (5) of the cylinder (1) of the piston-cylinder unit. The piston (2) is guided in a flanged gland (15) which is screwed to the cylinder (1).
Abstract translation: 注塑机的关闭机构具有液压加压的活塞 - 气缸单元。 可以在单元中执行两个部分行程，其中第一个可以比第二个更快地运行。 位移管（7）延伸到主缸室（6）并进入活塞 - 缸体单元的活塞（2）的内缸室（4）中。 位移管（7）固定在主缸（1）的端壁上，并在其自由端开口。 活塞（2）被设计为柱塞，并且在活塞 - 气缸单元的气缸（1）的气缸壁（5）的所有侧面上具有空间。 活塞（2）被引导到螺纹连接到气缸（1）上的凸缘（15）中。
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35.发明授权Method and apparatus for regulating mold clamping force in an injection molding machine 失效用于在注射成型机中调节合模力的方法和装置
公开(公告)号：US4942004A
公开(公告)日：1990-07-17
申请号：US265709
申请日：1988-11-01
Applicant: John C. Catanzaro
Inventor： John C. Catanzaro
CPC classification number: B29C45/7653 , B29C45/67
Abstract: A method and apparatus for controlling the hydraulic pressure in an hydraulic clamping cylinder to correspond with a desired clamping force and to compensate for overshoot of the hydraulic pressure caused by time delays in operating the components in the hydraulic circuit. The control arrangement involves the sensing of the actual hydraulic pressure during the clamp force maintenance portion of a clamping cycle and comparing the actual pressure with a desired pressure to provide a correction signal to be utilized to control the operation of the hydraulic system during the next succeeding cycle so that the actual hydraulic pressure during the clamp maintenance portion of the clamping cycle during the next succeeding cycle results in a clamping force that is closer to the desired clamping force.
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Patent Agency Ranking36.发明授权
公开(公告)号：US4828475A
公开(公告)日：1989-05-09
申请号：US184450
申请日：1988-04-13
Applicant: Masao Kamiguchi
Inventor： Masao Kamiguchi
Abstract: A direct pressure type mold clamping apparatus for an injection-molding machine is capable of performing high speed mold closing and opening operations and of producing a required mold clamping force, without the use of a large sized motor, the mold clamping apparatus being driven by two motors. A movable platen is driven by servomotor at high speed to a die touch position. An error register of a servo circuit is supplied with distributed pulses which correspond to a moving amount from the die touch position to a set mold clamping force producing position. The movable platen is then driven in a mold clamping direction with a greater driving force by an induction motor. Thereafter, pulse signals outputted by a position detector are supplied to the error register corresponding to movement of the movable platen to gradually reduce an error value of the error register. When the error register value is reduced to zero, arrival at the set mold clamping force producing position is determined. Then, the induction motor is braked by a braking system so that the required mold clamping force is produced. Thereafter, the movable platen is driven by the servomotor at high speed in the mold opening direction.
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公开(公告)号：US4768946A
公开(公告)日：1988-09-06
申请号：US860624
申请日：1986-05-06
Applicant: Yoshio Maruyama , Kazuei Kenmochi
Inventor： Yoshio Maruyama , Kazuei Kenmochi
CPC classification number: B29C45/68 , B29C33/202 , B29C2045/667
Abstract: A mold clamping device includes a frame, a fixed base for supporting a first mold, the fixed base being fixedly mounted on the frame, a movable base for supporting a second mold, the movable base being movably mounted on the frame in confronting relation to the fixed base, first means on the frame for driving the movable base to move rectilinearly toward and away from the fixed base, a cam follower supported on the movable base, a cam supported on the frame and having a cam surface held in contact with the cam follower, and second means for driving the cam in a mold clamping stroke to displace the cam follower for enabling the movable base to clamp the second mold firmly against the first mold on the fixed base, the cam surface being defined by a cam follower displacement curve having a gradient which is greater at an initial stage of the mold clamping stroke and becomes smaller as the mold clamping stroke progresses. When the cam is driven by the second means, the cam follower is displaced thereby to clamp the first and second molds together. The cam is small in size to make the mold clamping device small in size, and is high in rigidity to allow itself to be driven by a small force.
Abstract translation: 一种模具夹紧装置，包括框架，用于支撑第一模具的固定基座，固定地安装在框架上的固定基座，用于支撑第二模具的可移动基座，所述可移动基座可移动地安装在框架上， 固定基座，用于驱动可动基座的框架上的第一装置，用于朝向和远离固定基座直线移动;支撑在可移动基座上的凸轮从动件，支撑在框架上的凸轮，并具有与凸轮保持接触的凸轮表面 从动件和第二装置，用于在模具夹紧冲程中驱动凸轮以移动凸轮从动件，以使得可移动基座能够将第二模具牢固地夹紧在固定基座上的第一模具上，凸轮表面由凸轮从动件位移曲线 具有在模具夹紧行程的初始阶段较大的梯度，并且随着模具夹紧行程的进行而变小。 当凸轮由第二装置驱动时，凸轮从动件被移位，从而将第一和第二模具夹紧在一起。 凸轮的尺寸小，使得模具夹紧装置的尺寸小，并且刚性高，从而允许其由小的力驱动。
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公开(公告)号：US4572276A
公开(公告)日：1986-02-25
申请号：US573669
申请日：1984-01-25
Applicant: Seiichi Hukuhara
Inventor： Seiichi Hukuhara
CPC classification number: F01C1/0246 , F01C21/00 , F04C2230/00 , F05B2230/00 , F05B2250/15 , F05B2250/25
Abstract: A tool for making a scroll for use in a scroll type fluid displacement apparatus is disclosed. The tool includes first and second molding members and an insertion member. The first molding element has an end plate and two involute wall elements extending from one side surface of the end plate to define two involute grooves, one wedge-shaped and the other rectangular in axial cross-section. A wedge-shaped insertion member is removably disposed in the wedge-shaped involute groove. The second molding member has an indentation in its axial end surface which defines an end plate of a scroll to be formed.
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39.发明授权Injection molding machine having mold locking unit equipped with toggle drive and hydraulic locking mechanism 失效注塑机具有模具锁定单元，配有肘节驱动和液压锁定机构
公开(公告)号：US4345890A
公开(公告)日：1982-08-24
申请号：US157277
申请日：1980-06-06
Applicant: Peter Hemmi , Richard Schrepfer
Inventor： Peter Hemmi , Richard Schrepfer
CPC classification number: B22D17/32 , B22D17/26 , B29C45/7653 , Y10S425/223
Abstract: An injection mold with locking device comprises a fixed backing plate and a fixed mold part plate which are connected to each other by four tie rods. A movable mold part plate is connected to the fixed backing plate through a drive and locking mechanism which is capable of moving the movable mold part plate into a mold position with the fixed mold part plate. A thermal force control apparatus is associated with one or more of the tie rods for changing the temperature of the tie rods and thereby causing the tie rods either to expand or contract. By such expansion or contraction, the exact force applied between the fixed and movable mold part plates can be adjusted to a desired level.
Abstract translation: 具有锁定装置的注射模具包括通过四个拉杆彼此连接的固定背板和固定模具部件板。 可移动的模具部件板通过驱动和锁定机构连接到固定的背板，该驱动和锁定机构能够利用固定的模具部件板将可移动的模具部件板移动到模具位置。 热力控制装置与一个或多个连杆相关联，用于改变拉杆的温度，从而使拉杆膨胀或收缩。 通过这种膨胀或收缩，施加在固定模具部件板和可移动模具部件板之间的精确力可以被调节到所需的水平。
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40.发明授权
公开(公告)号：US4222730A
公开(公告)日：1980-09-16
申请号：US71374
申请日：1979-08-30
Applicant: Karl Hehl
Inventor： Karl Hehl
CPC classification number: B29C45/10 , Y10S425/221 , Y10S425/223
Abstract: An arrangement in connection with the die closing unit of an injection molding machine for interchangeably mounting to the rear side of the stationary die carrier plate differently spaced pairs of tie rods of injection units of different size, using two tie rod mounting sockets whch are clampable to the die carrier plate and thereby also serve to produce an axial preload on the tie rod connections of the die closing unit in the die carrier plate.
Abstract translation: 与注射成型机的模具关闭单元相关的布置，用于可互换地安装到固定模具承载板的后侧，使用两个拉杆安装套筒不同地分开成对的不同尺寸的注射单元的拉杆， 模具承载板，从而也用于在模具承载板中的模具关闭单元的拉杆连接件上产生轴向预载荷。
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