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Controlling Fluid Pressure In Direct Contact With Molding Material

Controlling Fluid Pressure In Direct Contact With Molding Material patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

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Plastic And Nonmetallic Article Shaping Or Treating: Processes


With Measuring, Testing, Or Inspecting > Controlling Fluid Pressure In Direct Contact With Molding Material



Closed loop control of auxiliary injection unit
07/24/14 - 20140203466 - A method and apparatus of controlling commencement of an injection of a melt stream of moldable material from an auxiliary injection unit. A sensor is placed in an injection molding system to sense a condition related to an injection of a first melt stream of a first moldable material provided...

Hydraulic source control device, injection molding apparatus, and method of controlling hydraulic source
07/03/14 - 20140183771 - The hydraulic source control device includes an operation input device capable of inputting operation conditions regarding the driving force of a fluid pressure control element, a servo motor including a motor section that drives a hydraulic pump and an amplifier that drives the motor section, and a controller that outputs...

Method and apparatus for detecting leak in a vartm process
07/03/14 - 20140183772 - Producing a composite structure comprising fibre reinforced material impregnated with liquid resin by means of vacuum assisted resin transfer moulding, by method of: providing a forming structure comprising a rigid mould part and a second mould part; placing the fibre material in the rigid mould part; sealing the second mould...

Injection molding method and apparatus
05/01/14 - 20140117573 - A thermoplastic injection molding system and method of use is described for molding parts from heated plastics and other organic resins. The machine uses heat sources located along the barrel to heat the source material while an auger screw transports the source material in the barrel. This transport step does...

Blow moulding machine with variable intermediate pressure level
04/24/14 - 20140110873 - at least the second pressure is varied during a working operation....

Apparatus and method for expanding preforms into containers
04/24/14 - 20140110874 - The invention relates to an apparatus as well as to a method for expanding preforms into containers within a blow mold by means of a pressurised pneumatic medium, wherein a compressor piston unit for compressing the pneumatic medium is in flow communication with the blow mold, in order to introduce...

Method for producing resin bottles
03/20/14 - 20140077404 - The present invention provides a method for producing a resin bottle formed from a preform as a prototype by a blow molding process. The method comprises: a first step of measuring each of weights or wall thicknesses of a plurality of inspection parts set in a body portion of the...

Detection, monitoring, and management of gas presence, gas flow and gas leaks in composites manufacturing
03/06/14 - 20140061962 - Porosity causing gas-based defects are detected, located, identified, and/or characterized by the use of defect information generated from gas flow data corresponding to gas flow characteristics measured by one or more sensors on a composite part processing piece such as a mould or membrane used during a composite manufacturing process....

Inspection apparatus, lithography apparatus, imprint apparatus, and method of manufacturing article
08/01/13 - 20130193603 - A foreign substance inspection apparatus includes: an irradiation unit configured to irradiate a surface of an object to be inspected with inspection light; a detector configured to detect light scattered by the surface irradiated with the inspection light; a determination unit configured to determine, using data of a surface roughness...

Method for manufacturing a container from a preform, with feedback depending on a minimum pressure detected
07/25/13 - 20130187304 - if the measured minimum and the theoretical minimum do not coincide, ordering a modification of at least one of the following parameters: pre-blowing pressure, pre-blowing flow rate, stretching speed, heating temperature....

Sintering machine and method of manufacturing sintered body
06/20/13 - 20130154146 - A sintering machine includes: a die configured to accommodate a processing object, and having a hole that extends from an outer side surface of the die toward inside of the die; a pressurizing member configured to apply a pressure on the processing object in the die; and a heating section...

Molding machine controlling apparatus and method of controlling molding machine
06/13/13 - 20130147078 - A pressure detector which detects a pressure of a material in a cylinder, and a pressure compensator which compares, in injection control, a preset value of an injection pressure with an actual measurement value of the injection pressure detected by the pressure detector, generates an injection speed command to a...

Automated gusset inflation system and method
05/30/13 - 20130134615 - The invention is directed to a method and apparatus for maintaining the inflation level of a bubble formed by nips in a moving roll of tubular film, to form a gusset in a final product produced from the film....

Method and apparatus for moving a tube extrusion line along
12/06/12 - 20120306111 - A method and apparatus for moving along a tube extrusion line. An extruded tube is pushed through the extrusion line, by means of pressure generated by an extruder, to a withdrawal unit that takes over further driving of the tube. In a first-moving along phase, in which the tube has...

Closed loop control of auxiliary injection unit
08/30/12 - 20120217668 - A method and apparatus of controlling commencement of an injection of a melt stream of moldable material from an auxiliary injection unit. A sensor is placed in an injection molding system to sense a condition related to an injection of a first melt stream of a first moldable material provided...

Process for producing low-density polyurethane moldings
06/21/12 - 20120153523 - The present invention relates to a process for producing polyurethane foam moldings of density from 100 to 300 g/L, by mixing (a) organic polyisocyanates with (b) polyols, (c) with blowing agents comprising water, and optionally (d) with chain extenders and/or with crosslinking agents, (e) with catalysts, and (f) with other...

Autoclave molding method and autoclave molding apparatus
05/31/12 - 20120133067 - The composite material formed of a fiber substrate and a matrix is placed in a vacuum bag and then in the molding chamber. Saturated steam of a predetermined temperature needed for the composite material is supplied to the molding chamber, and the temperature and the pressure inside the molding chamber...

Device and method for pressure control of electric injection molding machine
05/03/12 - 20120104642 - {Solution}The present invention uses a high-gain observer which contains the discrete-time arithmetic expressions derived from a mathematical model of an injection and pressure application mechanism in an electric-motor driven injection molding machine consisting of a state equation and an output equation and outputs an estimate of injection pressure, which is...

Plastics processing method and apparatus
01/12/12 - 20120007265 - A method for additive delivery during a plastics processing is disclosed. The method includes establishing a network of components in a control loop that uses a feedback method to drive at least one pump, thus enabling continuous, robust proportioning of additive in a difficult to control environment. The feedback method...

Device and method for plasticization control of electric injection molding machine
12/08/11 - 20110298146 - The present invention uses a high-gain observer which contains the discrete-time arithmetic expressions derived from a mathematical model of a plasticizing mechanism in an electric-motor driven injection molding machine consisting of state equations and outputs an estimate of screw back pressure, which is one of the state variables of the...

Method and apparatus for the injection molding of a molded part
10/20/11 - 20110254184 - The invention relates to a method for injection moulding of a moulded part (1), which has at least two different sections (2, 3) being different in the outer diameter (D1, D2), wherein a void (4) is produced in the inner of the moulded part (1) by causing a projectile (5)...

Method for setting the sizes of blown film tubes as well as a blown film plant comprising a control device for implementing said method
05/19/11 - 20110115111 - Physical parameters of the initial and final size of the film tube (1) are stored in the control device (31). The control device (1) takes these physical parameters into account when generating control signals. Furthermore, these control signals form the basis for the control of the cooling fan output...

Extrusion die flow modification and use
03/03/11 - 20110049743 - An extrusion die is processed to alter the flow of extrudable material through the die by collecting data reflecting flow variations across the face of the die, constructing a graded resistance flow restrictor utilizing the data, and forcing an abrasive machining medium through the flow restrictor and die with the...

Method and device for producing a coated structure
02/24/11 - 20110042842 - The present invention relates to a method and a device for producing a coated structure. A support structure is initially introduced into a mold, and subsequently a flooding gap is formed between the support structure and at least one part of the mold. Then, a negative pressure is generated in...

Method and device for blow-molding containers
02/17/11 - 20110037189 - The method and the device are used for blow-molding containers. A preform made of a thermoplastic material is first subject to a thermal conditioning operation along a transport path in the region of a heating section. Thereafter, the preform is formed into the container inside a blowing mold by applying...

Injection-molding method and apparatus
10/21/10 - 20100264558 - An injection-molding method made up of a step of preparing a first die (41), a second die (46) and a third die (47), a step of sandwiching a separator proper (16) with the first die (41) and the second die (46), a step of molding a front side molded layer...

Method for producing a vessel from a preform, with feedback depending on the development point of the preform
08/12/10 - 20100201013 - if the measured peak and the theoretical peak are not confounded, modify at least one of the following parameters: pre-blowing pressure (PP), pre-blowing flow rate (DP), pre-blowing cue (tP), stretching speed (VE), heating temperature (T)....

Tool for a resin transfer moulding method
01/28/10 - 20100019405 - A tool for a resin transfer moulding method comprises a cavity, a resin trap and a transition region, wherein the cavity is designed such that a component can be accommodated in it. Furthermore, the resin trap is integrated in the tool, and the transition region is designed such that with...

Method and apparatus for blow-molding containers
01/14/10 - 20100007037 - The method and the apparatus serve for blow-moulding containers. After thermal conditioning, a parison is formed into the container within a blowing mould of a blow-moulding machine (41) by the action of blow-moulding pressure. The required blow-moulding gas is provided by a compressor (42). A compressor controller (44) is connected...

Tire vulcanizer and tire vulcanizing method
01/14/10 - 20100007038 - A tire vulcanizing apparatus and a tire vulcanizing method, by which the pressure and temperature of a heating and pressurizing medium to be supplied to the internal space of a raw tire can be controlled without the condition of pressure being affected by the condition of temperature. The tire vulcanizing...

Control method of injection molding and control apparatus of injection molding
12/24/09 - 20090315205 - A control method of injection molding includes the steps of: filling molten resin in an injection molding die by velocity control until a detection value of a filling pressure of the molten resin reaches a first set pressure value; filling the molten resin by switching control from the velocity control...

Apparatus for crimping chemical-fibre filaments and control methods thereof
09/17/09 - 20090230583 - Crimping machine for chemical-fibre filaments with crimping chamber having an oscillating upper plate loaded with a closure force for imparting a pressure on the tow which passes through the crimping chamber, wherein the plates of the crimping chamber are mounted on respective supports through two or more linear guides provided...

Method and apparatus for making a composite, in particular comprising an injection-molded part with a polyurethane coating
07/23/09 - 20090184436 - In a method for producing a composite, a carrier component is placed into an opened cavity of a mold. The mold is then closed to a predetermined position, thereby creating an cavity of a first expanded size. To improve venting, a vacuum is generated in the expanded cavity before filling...

Method for extruding a polymeric material and extrusion head therefor
07/09/09 - 20090174103 - A method for extruding a polymeric material includes the steps of: a) feeding the polymeric material to an extrusion apparatus including an extrusion head, the extrusion head including: a male die; a female die coaxially arranged with respect to the male die; a conveying channel, at least one portion of...

Method of forming crash panel for vehicles
06/18/09 - 20090152752 - Disclosed herein is a method of forming a crash panel for vehicles, which prevents a tear line from discoloring, prevents sink marks from occurring, and additionally has a reduced manufacturing cost. The method includes injecting and charging molten resin into a mold having a core and a cavity so as...

Self-controlled solenoid valve device
04/23/09 - 20090102082 - A solenoid valve device including a solenoid valve and a choke. The solenoid valve device also including a pressure sensor connected to a control device, which transmits opening and closing signals to the solenoid valve. The control device also transmits signals for automatically setting the choke....

Injection device of an injection molding machine and method for the operation thereof
03/12/09 - 20090065962 - There is described a device and a method for operating an injection device for an injection molding machine which is provided with an extruder screw that is driven by an electric machine. Acceleration values and/or values depending on an operating point of the electric machine are used for calculating an...

Method of sensing melt-front position and velocity
02/19/09 - 20090045537 - A method of sensing melt-front position and velocity is applicable for injection-molding systems. Firstly, at least one actuation signal value of the melt-injection device of the injection-molding system is retrieved, and at least one state variable value of the injection-molding system is measured. Then, the retrieved actuation signal values and...