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| Number | Title | Issue Date |
| 8177540 | Method and apparatus for the production of high tenacity polyolefin sheet A process for the production of virtually full density polyolefin suitable for further processing by drawing to form a high tenacity, highly oriented polyolefin sheet comprising: a) feeding a metered amount of polyolefin powder into the nip between two heated calend... | 05/15/2012 |
| 8162647 | Blowing agent introduction systems and methods The present invention provides blowing agent introduction systems and methods for introducing blowing agent into polymeric foam processing systems. The methods may involve introducing one or more doses of blowing agent into polymeric material in an extruder during a... | 04/24/2012 |
| 8128391 | Molding machine Intended is to provide a molding machine using a built-in type motor as an injecting electric motor. In this molding machine, a mounting structure for such a transmission mechanism from a rotational motion to a linear motion, as changes the rotation of the built-in ... | 03/06/2012 |
| 8092206 | Injection unit for an injection molding machine The invention relates to an injection unit (1) of an injection molding machine which is arranged movable relatively to a machine base (2) of the injection molding machine in an axial direction (A), wherein the injection unit (1) comprises a base... | 01/10/2012 |
| 8087919 | Injection unit for an injection molding machine An injection drive unit includes a hollow cylindrical casing rotatably supported by a housing, the cylindrical casing having an axis and a front end and a back end spaced apart along the axis; a piston in the cylindrical casing, the piston axially slidable relative ... | 01/03/2012 |
| 8075296 | Injection molding machine Provided is an injection molding machine using a built-in type motor as a measuring electric servomotor. In order to reduce the entire length of the machine (the injection molding machine), the metering electric motor is exemplified by a hollow built-in type motor, ... | 12/13/2011 |
| 8066502 | Molding material feeding barrel and molding material feeding system An exemplary molding material feeding barrel includes a main body, a blocking member, and an electrically conductive member. The main body has a chamber defined therein. The main body has a first inner surface in the chamber. The blocking member protrudes inward fro... | 11/29/2011 |
| 8016581 | Injection molding flow control apparatus Apparatus for controlling the rate of flow of fluid material from an injection molding machine to a mold cavity, the apparatus comprising: a manifold receiving the injected fluid material and having a delivery channel that delivers... | 09/13/2011 |
| 8011914 | Food supply system for a food patty molding machine A patty-forming machine includes a food supply system where the drive mechanism for feed screws use integrated and compact motor and gearbox assemblies. The feed screws have heavy wall thickness flights and the feed screw shafts are journaled through modular bearing... | 09/06/2011 |
| 7955068 | Injection molding machine An injection apparatus includes a guide member on a frame via a guide member support mechanism. A screw rotation mechanism is assembled on the guide member. This prevents the guide member from being affected by deformation of the frame and allows the screw rotation ... | 06/07/2011 |
| 7950915 | Plastics injection molding machine with injection force measuring device A plastics injection molding machine with an injection unit has an injection unit housing as central part of the injection unit, a plasticizing cylinder connected to the injection unit housing, a screw which is supported in the plasticizing cylinder for rotation to ... | 05/31/2011 |
| 7942659 | Injection drive apparatus for injection molding machine An injection drive apparatus for injection molding machines is revealed. Liquid material is fed into a mold smoothly by a material feeding screw of a material feeding mechanism. Then a reaction force is generated to push the material feeding screw when the material ... | 05/17/2011 |
| 7934918 | Injection molding tool with closable hot channel nozzle In an injection molding tool with at least one hot channel nozzle (1), which is provided with a discharge nozzle opening (1a) and a closure needle (2) for closing the nozzle opening, an element (3) is provided by which at least the... | 05/03/2011 |
| 7918660 | Injection molding actuator position sensing A nozzle has a valve pin for controlling flow of molding material through a nozzle melt passage. An actuator has a stationary part and a movable part. The actuator further has an extending rod connected to the movable part thereof and a block connected to the rod, t... | 04/05/2011 |
| 7871257 | Injection molding machine An injection molding machine capable of accurately detecting a rotational force exerted on a screw by resin backflow to easily evaluate states of resin backflow and closure of a check valve. In a state where the screw is stopped axially and rotationally after meteri... | 01/18/2011 |
| 7866970 | Hydraulic drive device for injection molding machine In a hydraulic drive device (1) for an injection molding machine (M) that has a pressure control valve (Vs) incorporating a pressure sensor (2) for detecting a hydraulic pressure and a feedback control circuit (Cs) for controlling the hydraulic pressur... | 01/11/2011 |
| 7866971 | Coupling for a plastics injection molding machine A coupling for a plastics injection molding machine which connects a drive shaft to a screw comprises at least one force sensor with a measuring element for the indirect determination of the nozzle pressure. The coupling comprises a first connection which has torsio... | 01/11/2011 |
| 7828540 | Drive unit Disclosed is a drive unit, in particular for an injection unit or an ejector of an injection molding machine, comprising a stroke spindle device with a spindle and a spindle nut, and a prestressing device for prestressing the spindle that is dischargeable in a displ... | 11/09/2010 |
| 7824164 | Controller of injection molding machine The present invention comprises a speed feedback control system for carrying out speed feedback control on the basis of a speed detected value Vd obtained by converting a position detected value Xd obtained from a screw position sensor 4, a pressure feedback ... | 11/02/2010 |
| 7806675 | Injection molding machine with resin pressure gradient detection Suck back is started and a gradient of pressure (an amount of change in resin pressure while a screw or a plunger moves backward by a certain amount) is detected. Whether or not an absolute value of the detected gradient of the pressure is smaller than a reference v... | 10/05/2010 |
| 7785090 | Injection control apparatus An injection control apparatus includes an injection member; a drive section for injection; an injection-speed detection processing section which detects injection speed; an injection-pressure detection processing section which detects injection pressure; and a driv... | 08/31/2010 |
| 7758328 | Injection molding machine having function for monitoring screw rotating torques Screw rotation speeds and screw rotating torques are measured at predetermined time intervals during metering and substituted into a previously-assumed function to determine a maximum screw rotating torque at each screw rotation speed. An allowable upper limit of sc... | 07/20/2010 |
| 7753669 | System for flexing a web A system for flexing a web is disclosed. The web passes over two co-rotating members, such as rollers or belts, which are separated by a small adjustable gap. The web travels around the first rotating member, is peeled off in the vicinity of the gap, bent back on it... | 07/13/2010 |
| 7722349 | Injection molding machine having a check valve closing position determining device An injection molding machine estimates a check valve wear amount, making it possible to predict a check valve use limit. At start of injection, the check valve is at a position advanced a stroke S0 with respect to a screw position (a position of a check seat ... | 05/25/2010 |
| 7713049 | Injecting molding machine having a torque detecting device When a screw equipped with a check ring is moved forward, torque acting on the screw is detected, and whether the check ring is closed is determined on the basis of the detected torque. The screw is rotated in reverse when the check ring is determined not to be clos... | 05/11/2010 |
| 7686604 | Coaxial injector screw providing improved small shot metering A screw for injection molding provides a coaxial piston that allows the effective cross-sectional area of the screw to be varied during the injection cycle permitting small shot metering with relatively large diameter injection molding screws. The screw is positione... | 03/30/2010 |
| 7677875 | Injection molding machine for controlling measurement of an in-line screw A method for controlling measurement in a motor-driven in-line screw type injection molding machine using servo-motors as a measurement driving source and an injection driving source. Control is made so that all of a measured value of back pressure controlled by the... | 03/16/2010 |
| 7661946 | Injection molding machine having a screw equipped with a check ring When the screw moves forward, resin backflow occurs. The backflow acts on the screw, applying torque to the screw. During forward movement of the screw, screw torque is produced as shown in FIG. 3A if the check ring is not worn, or as shown in FIG. 3B ... | 02/16/2010 |
| 7654810 | Injection molding machine which carries out controlling of closing operation of a check ring While a check ring of a screw of an injection molding machine is in open state, an absolute value (|Δ resin pressure/Δ rotation amount|) of a variation of a resin pressure per unit variation of the screw reverse rotation becomes greater than a predetermined refere... | 02/02/2010 |
| 7654809 | Injection molding machine having a force peak time detecting device If a screw is moved forward after a metering step is completed, the screw moves in a state where a check ring on a tip end of the screw is in open state. Resin flows in a direction opposite to the injection direction. A rotational force is applied to the screw due t... | 02/02/2010 |
| 7588435 | Apparatus for generating an injection speed pattern Shape information of a molded article is used to determine cross sectional information. Injection speed pattern data is generated based on parameter information such as the cross sectional area of a barrel cylinder, the filling time interval, the injection stroke, e... | 09/15/2009 |
| 7588434 | Fluid distributor and translatable drive apparatus for a molding Fluid distributor and operational drive of a molding system, comprising: block forming manifold for distributing fluid, block including: first interface disposed on side of the block providing connection to stationary device; second interface disposed on block confi... | 09/15/2009 |
| 7452198 | Controller of injection molding machine A controller for an injection molding machine capable of reducing an extension of a cycle time in a screw retreat process after the end of measurement, obtaining a more accurate and uniform measured resin amount, and determining measurement conditions in a short per... | 11/18/2008 |
| 7435070 | Control apparatus for injection molding machine When a metering process is started, a screw rotates at a preset rotating speed, thereby carrying out back pressure control to keep the pressure of a resin at a preset pressure, and retreats. When the screw is located near a preset metering completion position, the c... | 10/14/2008 |
| 7431870 | Automated molding technology for thermoplastic injection molding A method for the automated setting-up of an injection molding machine, the machine for manufacturing injection molded parts and including an injection screw and a configurable injection velocity, including the steps of: manufacturing one of more parts with the machi... | 10/07/2008 |
| 7419372 | Method and apparatus for continuous molding of fiber reinforced plastic member with curvature In a continuous molding apparatus equipped with a long core 10 having a curvature disposed on a plane, a release film supplied from a lower release film feeder 20 is sent onto the core 10, and prepreg sheets supplied from a prepreg sheet feeder ... | 09/02/2008 |
| 7419625 | Injection molding flow control method In an injection molding machine having upstream and downstream channels communicating with each other for delivering fluid material to one or more mold cavities, apparatus for controlling delivery of the melt material from the channels to the one or more mold caviti... | 09/02/2008 |
| 7404709 | Injection unit of injection molding machine The invention provides an injection molding machine injection unit that eliminates adverse effects on the load cell of belt tension due to belt drive. A load cell that detects resin pressure is mounted on a pusher plate and a rotation-transmitting member, on which a... | 07/29/2008 |
| 7399173 | Apparatus for flexing a web An apparatus and method for flexing a web is disclosed. The web passes over two co-rotating members, such as rollers or belts, which are separated by a small adjustable gap. The web travels around the first rotating member, is peeled off in the vicinity of the gap, ... | 07/15/2008 |
| 7393198 | Molding-system viscous-drag sensor A molding system having a melt pathway configured to convey a molding material. The molding system includes a viscous-drag sensor having: (i) a pathway blockage, and (ii) an actuator. The viscous-drag sensor is interactable with the molding material. The pathway blo... | 07/01/2008 |
