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| Number | Title | Issue Date |
| 7438553 | Mold closing device for injection molding machines A mold closing device for injection molding machines, especially injection molding machines for plastic material, comprises two mold closing plates (10, 12) movable relative to each other. A displacing means (22) with an electromotive drive (26)... | 10/21/2008 |
| 7371064 | Hydraulic device for back and forth movement of a machine part, and a clamping unit of an injection molding machine fitted with such a hydraulic device The invention relates to a hydraulic device for the back and forth movement and locking of a machine part, in particular for the opening, closing and locking of an injection molding tool. The hydraulic device comprises a cylinder (1), in which a first pressur... | 05/13/2008 |
| 7371061 | Die clamping system A die clamping system enabling reduction of the size of a tie bar withdrawing mechanism, that is, a die clamping system provided with a fixed die plate, a moveable die plate, tie bars withdrawable from the fixed die plate, moveable parts engaging with the tie bars, ... | 05/13/2008 |
| 7351053 | Drive unit A drive unit, in particular for a closing unit, an injection unit, or an ejector of an injection molding machine, may be used where a high axial force is applied through a hydraulic power converter. A cylinder of the power converter may be fixed relative to a frame ... | 04/01/2008 |
| 7311517 | Mold clamping device and molding method A movable platen (4) capable of advance and retraction with respect to a fixed plate is provided with a tie bar connecting device (12) for meshing a split nut (18) with the multiple groove portion (16) of a tie bar (10), and a mold... | 12/25/2007 |
| 7261555 | Closing device in a plastic injection molding machine A closing device in a hydraulic injection molding machine includes at least one pressure cylinder unit for building up locking pressure and a drive cylinder mounted in the pressure piston of the pressure cylinder unit for closing the injection mold. The drive cylind... | 08/28/2007 |
| 7217115 | High speed direct mold clamping apparatus of an injection molding machine The present invention relates to a high speed direct mold clamping apparatus. The direct mold clamping apparatus has a grooved channel for the flow of oil inside a clamping cylinder to minimize the flow of oil between inside and outside the clamping cylinder. Then, ... | 05/15/2007 |
| 7186106 | Molding machine and molding method In a molding machine, a fixed platen which supports a fixed die is disposed on one end of a base plate. A movable platen which supports a movable die and a supporting mount which supports each one end portion of the four tie bars are mounted on slide units. The mova... | 03/06/2007 |
| 7168944 | Energy efficient extruder drive An energy efficient drive system is provided for use on typical injection molding machines whereby a single electric motor drives both the extruder screw and a hydraulic motor that continuously charges a hydraulic accumulator during the extrusion process. During the... | 01/30/2007 |
| 7159639 | Diecasting machine A direct-acting type diecasting machine having an inexpensive and simplified hydraulic circuit is provided, which includes: a mold clamping cylinder for clamping and opening/closing a mold in a direct-acting manner; a single two-way hydraulic pump driven by a drivin... | 01/09/2007 |
| 7153128 | Press mechanism, clamp mechanism, and molding machine using this clamp mechanism A thermal pressing machine has a case in which a fixed-side press plate is fixedly provided, a main shaft to which a moving side press plate is attached, a lever arm pivotally attached to the main shaft, a first drive mechanism coupled to a force point at one end of... | 12/26/2006 |
| 7140872 | Molding machine A molding machine including a base frame assembly and a clamping mechanism and an injection mechanism provided on the base frame assembly. The clamping mechanism includes a stationary platen carrying a stationary mold; a movable platen arranged movably relative to t... | 11/28/2006 |
| 7134870 | Mold clamping mechanism of molding machine In a mold clamping mechanism of a molding machine, at least two pieces of movable platen guides are provided separate from tie bars, inserting the movable platen guides into the holes formed in a movable platen. A sliding part of each movable platen guide on which a... | 11/14/2006 |
| 7128563 | Clamping device for injection-molding machine A clamping device for injection molding machine is proposed. The clamping device has a movable mold holder, a guiding unit, a screw rod unit, a transmission unit, a first clamping unit, and a second clamping unit. Power from the driving source is transmitted via the... | 10/31/2006 |
| 7114948 | Clamping mechanism of molding machine A clamping mechanism of a molding machine, including a bed; a stationary platen mounted on the bed, and carrying a stationary mold; a guide bar arranged fixedly relative to the stationary platen, and defining a longitudinal guiding axis; a first movable platen arran... | 10/03/2006 |
| 7114949 | Method and apparatus for mold clamping in an injection molding machine and the like Method for mold clamping of the present invention is capable of shortening a molding cycle without any initial setting works for an engaging position of a tie bars. The method is constituted the steps of moving the tie bars in the direction of mold closing during mo... | 10/03/2006 |
| 7112058 | Clamping mechanism for an injection molding machine A clamping mechanism for a clamping unit of an injection molding machine includes a drive unit which moves a first platen linearly relative to a fixed second platen and is linked to the first platen for limited movement. A force-application unit builds up a clamping... | 09/26/2006 |
| 7097791 | Method of controlling/regulating an embossing procedure and drive control device for injection molding machines The invention relates to a novel method for producing precision parts, especially flat optical data carriers. According to the inventive method, the embossing procedure is program-controlled on the basis of the path function of an electromechanical or hydraulic driv... | 08/29/2006 |
| 7090800 | Mould and method for injection-compression moulding A mold, a molding machine and a method of molding a plastics material in a mold cavity is described which relies primarily on movement of a part of the mold to provide the pressure necessary to force the plastics material melt to fill all the parts of the mold cavit... | 08/15/2006 |
| 7077389 | Method of forming a molded powertrain mount assembly The invention provides a method of forming a molded powertrain mount assembly. A metal insert is provided, the metal insert including an engine interface portion and a molded base interface portion. At least one seal member is positioned onto the engine interface po... | 07/18/2006 |
| 7033164 | Nozzle-contacting device of injection molding machine A nozzle-contacting device of an injection molding machine includes an injection module and a mold-holding structure both set on a lathe bed. The injection module sets a nozzle at a front end thereof and a nozzle-adjusting device, which is fixed and locked on the la... | 04/25/2006 |
| 6994539 | Machining apparatus A machining apparatus for forming and cutting workpieces that can prevent the blade thereon from damages. The machining can also precisely form desired patterns on the workpiece and cut the workpiece to desired shape. The machining apparatus contains: a hydraulic cy... | 02/07/2006 |
| 6986657 | Injection molding apparatus Injection molding apparatus with a stationary mold clamping plate and a moveable mold clamping plate as well as shafts fixed to one mold clamping plate and passing through openings in the other mold clamping plate, at least one of which has at least one thread on it... | 01/17/2006 |
| 6953334 | Closing device on a plastic injection molding machine A closing device for a mold closing unit includes: at least one hydraulic pressure cylinder unit for generating a mold closing pressure on an injection mold which is accommodated in a mold clamping chamber; a pressure piston disposed in the pressure cylinder unit, a... | 10/11/2005 |
| 6945765 | Hydraulic clamping device for molding machines The clamping comprises a tie-bar which extends between a fixed and a movable platen of a molding machine, with respect to the first, and hydraulically operated locking means for engaging the tie bar and generating the clamping force. The locking means comprises a hy... | 09/20/2005 |
| 6932924 | Method and apparatus for mold clamping in an injection molding machine and the like Method for mold clamping of the present invention is capable of shortening a molding cycle without any initial setting works for an engaging position of a tie bars. The method is constituted the steps of moving the tie bars in the direction of mold closing during mo... | 08/23/2005 |
| 6926514 | Two-plate injection molding machine A two-plate injection molding machine comprising a movable mold mounting plate and a stationary mold mounting plate and at most three bars passing through the edge region of the mold mounting plates, wherein the closing force is applied to the movable mold mounting ... | 08/09/2005 |
| 6915835 | Die clamping system and method of clamping die A die-clamping system has a die and a clamping device. The die includes a first engaging portion in a first predetermined shape. The die is transferred in a first direction from a first position toward a second position. The clamping device has a second engaging por... | 07/12/2005 |
| 6893246 | Clamping device for injection-molding machine A clamping device for injection-molding machine includes a high-speed screw rod unit having a nut element screwed thereto and a movable mold holder connected to a front end thereof, a clamping screw rod unit screwed to a rear end of the nut element and connected to ... | 05/17/2005 |
| 6884057 | Electromechanical clamping device An electromechanical clamping device with hydraulic assistance. A thrust mechanism driven by an electric motor displaces two clamping jaws with respect to each other along a guide device. One clamping jaw is divided into two mutually displaceable part java. A chambe... | 04/26/2005 |
| 6877977 | Two-platen closing system for an injection molding machine In a two plate closing unit of an injection molding machine the stationary and the movable mold mounting plates are connected by columns, wherein the columns that traverse the fixed mold mounting plate are fixedly connected to a clamping cylinder in which the column... | 04/12/2005 |
| 6835061 | Device and method for carrying out a two-stage linear movement A device for carrying out a two-stage, linear movement as well as an associated method for displacing a displaceable structural unit relative to a stationary structural unit. A first drive unit drives a shaft, which is in operative connection with a tube, which is c... | 12/28/2004 |
| 6821110 | Apparatus for molding with hot melt adhesives This invention consists of a new cost effective injection molding apparatus for molding with hot melt adhesives and other Polyamide materials. Manufactured from standard tubing components in a double “L” or “C” design, it has fewer moving parts than other mo... | 11/23/2004 |
| 6821104 | Die clamping apparatus and method, and method for adjustment to die thickness using said apparatus In a die clamping apparatus for an injection molding machine or the like, die clamping means for coupling and pressing a moving die plate 9 to a fixed die plate via a tie bar 15 has a die clamping cylinder consisting of two stages of a large-diameter c... | 11/23/2004 |
| 6817859 | Drive device for a movable part, especially a mold closure device for an injection molding machine, and method for operating such a drive device A drive for a movable part, such as a mold closure platen, includes two hydraulic cylinder-and-piston units defining first and third pressure chambers in a first of the hydraulic units and defining fourth and fifth pressure chambers in a second of the hydraulic unit... | 11/16/2004 |
| 6811394 | Clamping linkage apparatus in a mold clamp apparatus The mold clamp apparatus comprises a toggle mechanism provided with a hollow pressure support body at the link tip. A movable platen is provided oppositely to a fixed platen and is supported by inserting therethrough a tie bar across a link reception platen of the t... | 11/02/2004 |
| 6769902 | Surface-pressure generating device in an injection-molding machine In an injection-molding machine, the rapid traversing over long distances takes place with the aid of linear drives (L1, L2), the “rotor” (H1, H2) which is a component part of the machine construction. ... | 08/03/2004 |
| 6739864 | Molding machine A molding machine includes a mold space between two mold carriers. One of the two mold carriers is movable relative to the other by a drive. A separate power unit generates a predetermined closing force between the two mold carriers when the two mold carriers are mo... | 05/25/2004 |
| 6733274 | Injection moulding machine and moulding method A method of injection-moulding includes separating an injection nozzle from a mould during every moulding cycle. An apparatus for carrying out the method is also disclosed. ... | 05/11/2004 |
| 6709252 | Molding apparatus Molding apparatus (200) is provided for simultaneously molding a molding material around a number of separate substrates, each substrate having a semiconductor chip mounted thereon. The apparatus includes a mold holder (113a, 113b, | 03/23/2004 |
