Abstract: An injection moulding apparatus with mould mounting plates carrying mould tools and a lubricant pump supplying a plurality of consumers and at least one machine part movable by a hydraulic drive, wherein the energy supply of the hydraulic drive (10) is effected by the lubricant pump (20).

Abstract: A mold for forming blocks with at least one textured surface, the mold comprising a structure defining a cavity open at opposite ends thereof for receiving a block forming material at one of the open ends and discharging a block formed from the block forming material at the other of the open ends; and a continuous web surrounding at least a portion of the structure and movable relative to the structure for acting on the block forming material received within the cavity to impart a texture to a surface of the block, the web being mounted to move around the portion of the structure when the block is discharged from the cavity.

Abstract: A high volume lens curing system is described. The high volume lens curing system is configured to cure multiple eyeglass lenses in a continuous manner.

Abstract: An apparatus for preparing a plastic eyeglass lens includes a coating unit and a lens curing unit. The apparatus is preferably configured to allow the operation of both the coating unit and the lens curing unit. The apparatus may also include a post-cure unit and a controller. The controller is configured to control the operation of the coating unit, the lens curing unit and the post-cure unit. The lens forming unit may include an LCD filter disposed between activating light sources and a mold assembly. The mold assembly preferably includes two mold members held together by a gasket. The gasket preferably includes four protrusions spaced at 90 degree intervals about the gasket. A lens forming composition may include a first photochromic compound, a second photochromic compound and a light effector. The light effector may alter the color of a lens when exposed to photochromic activating light, when compared to a lens formed from a lens forming composition which does not include a light effector.

Abstract: An injection molding machine in accordance with the present invention includes a storing function portion 2 composed of a first memory portion M1 for storing in advance a standard program Ps that becomes standard of a sequence program and a second memory portion M2 having one or more memory areas into which a user program Pu . . . to be interrupted into the standard program Ps can be written, a user program making portion 3 that can make the user program Pu . . . by indicating a process of making the user program Pu interrupt into the standard program Ps, and a controlling function portion 4 for writing the made user program Pu . . . into the memory area in the second memory portion M2 and executing both of the standard program Ps and the user program Pu . . . interrupted into the standard program Ps at the time of the molding operation.

Abstract: A method for taking countermeasures against faulty molding in which, with the aid of an expert system, restoration to a nondefective molding condition when faulty molding takes place during the mass production of molded products. When threshold values of a plurality of molding parameters, and information indicative of countermeasure processes, respectively corresponding to combinations of evaluations on these parameters and determined on the basis of the knowledge and experiences of skilled persons, are manually entered through a data input device (119), they are stored in tables of a memory (110) beforehand under the control of a processor (114). Upon start of the mass production, the injection time, metering time and cushion amount which are measured or calculated during a molding cycle, and the resin pressures corresponding to the manually set screw positions at the time of passing the gate and filling are set in the tables as reference values of the parameters.

Abstract: An embossing apparatus in an extrusion line for the production of sheet extrusions like vinyl siding, can include a revolver above the backing roll and supported in a pair of cradles so that selected embossing rolls can be juxtaposed with the backing roll and can define the embossing gap therewith. The revolver is indexed in position by pneumatically-operated locking members on the cradles. The revolver allows embossing roll change on the fly, if desired.

Abstract: An apparatus and a method for forming a three-dimensional article with thermosetting material on the basis of a three-dimensional information on the article by means of an ink jet method. The material is jetted from at least one ink jet head to a stage and laminated thereon. The laminated material is supplied with heat by a heat source so that it is cured. In this process, a jetting direction of the material from the ink jet head to the stage and/or a jetting amount of the material jetted from the ink jet head is changed in accordance with the information by a control unit, thereby forming a solid article having a desired three-dimensional shape.

Abstract: Apparatus for "forming" (reshaping) plural dough balls on a conveyor including means for arranging the balls in a desired order on the conveyor. Included is a transfer conveyor with reciprocative end portion and funnel type means cooperating with ring means above a second conveyor for facilitating arranging the balls on the second conveyor and controls for the apparatus.

Abstract: An apparatus and a method for forming a three-dimensional article with photosetting or thermosetting material on the basis of a three-dimensional information on the article by means of an ink jet method. The material is jetted from at least one ink jet head to a stage and laminated thereon. The laminated material is exposed to light by a light source to be cured. In this process, a jetting direction of the material from the ink jet head to the stage and/or a jetting amount of the material jetted from the ink jet head is changed in accordance with the information by a control unit, thereby forming a solid article having a desired three-dimensional shape.

Abstract: A mould for forming ceramic tile of different colored ceramic materials is provided with a first material supply for supplying material for a ground layer. A second material supply for supplying a second layer of material is provided whereby a multicolred material is fed to the mould by a movable slide containing a sieve through which the material is fed to the mould. A third material supply is supplied to the mound via a drivable conveyor belt which collects a third layer of material from one or more strewing bins and deposits the material onto the second layer of material. The apparatus also contains metering rollers that deposit material from the strewing bins onto the conveyor belt.

Abstract: A pressure chamber apparatus comprises a pressure chamber having an opening at one end and a plug member with a self locking sealing design telescopically mounted in the chamber for sliding movement between a retracted position in which it is inside the chamber and an extended position in which it projects at least partially out of the chamber opening. The plug member has a transverse through slot for containing one or more workpieces to be pressurized, and substantially fills the pressure chamber in the retracted position. The slot in the plug member and the pressure chamber surrounding the plug member are filled with liquid, and connected to a pressure booster for pressurizing the liquid to a selected level.

Abstract: Apparatus for converting thermoplastic blanks into shaped articles has a wheel-shaped conveyor which carries an outwardly extending link for a coupling which can engage successive blanks of a series of blanks during advancement along a first portion of its endless path. The blank is transported through a heating unit and thereupon enters the cavity of a mold to be converted into a shaped article which is removed from the mold and is delivered to an article receiving unit. The blank heating unit, the mold and the article receiving unit are respectively adjacent to second, third and fourth portions of the endless path. The conveyor can be driven at a variable speed and in stepwise fashion to be decelerated during advancement of a blank through the heating unit and to come to a halt while the blank is being converted into a shaped article. Alternatively, the link can be pivoted in and counter to the direction of rotation of the conveyor to thus accelerate or decelerate the coupling relative to the conveyor.

Abstract: Paste-form material is shaped into individual portions by an apparatus wherein a feed pipe provides a continuous supply of paste-form product under pressure to a distributor which is synchronized with a cutting device to produce the individual portions which are delivered to a support. Elements of the cutting device collect drops produced when cutting the distributed paste-form product, and the collected drops are removed from the cutting device such that the drops do not come in contact with the support.

Abstract: A device for cleaning a molding tool in a plastics processing machine, for example the molding tool of hydraulic presses for pressing molded components from fiber reinforced plastics. The device including a cleaning tool which can be brought to at least one of the surfaces to be cleaned in at least one of a male mold and female mold of the molding tool. In order to be able to perform automatic cleaning of the molding tool in a minimum amount of time and simultaneously avoid the danger of damage to the tool and the machine, the cleaning tool is provided with a holder which is disposed at a carrier of the molding tool, with the movement of the holder being synchronized with the operating stroke of the machine.

Abstract: Described herein is an interlock system for an isostatic press machine of the type including a high pressure container having upper and lower closure plugs releasably received in upper and lower openings to be used for loading and unloading work therethrough, and a holder frame for supporting the axial force of the container in an isostatic pressing phase of the press operation, the holder frame being pivotally supported at one side thereof for swinging movements about a vertical axis into and out of a holding position in engagement with the high pressure container, wherein the interlock system is provided with a lock mechanism constantly urged to lock the holder frame in the holding position, and a control means adapted to control the lock mechanism to maintain the lock on the holder frame when the internal pressure of the high pressure container is higher than a predetermined level and to release the lock when lower than the predetermined level.

Abstract: Apparatus is provided for lining a pipe wherein a thermoplastic liner is initially formed in a cylindrical shape with a diameter slightly larger than the internal diameter of the pipe. The liner is temporarily deformed at an elevated temperature to a different cross-section, preferably U-shaped, to reduce its overall cross-sectional dimension to facilitate insertion into the pipe to be lined. The deformation occurs with substantially comparable elongation of the pipe lining along its opposite sides thereby precluding variations in wall thickness and stress in the pipe. Once inserted, the liner is pressurized and reheated first to a temperature below its crystallization temperature to round the lining in the pipe and subsequently, further pressurized and reheated to a second temperature higher than the crystallization temperature to cause the liner to retain its original round shape.

Abstract: The invention relates to a method of treating power station residues in the form of bulk material, particularly the filter ash from power stations, by hydrating the lime content by adding moisture and by further wetting of the bulk material, with an opportunity for constantly feeding in material to be processed and discharging processed material, and also to an apparatus for carrying out the method. In order to provide a method and an apparatus by which large quantities of power stations residues (ash) can be quickly and safely treated at economic and comparatively low cost, it is according to the invention proposed that the bulk material supplied should pass through a succession of different spatially substantially separate treatment zones be moved mechanically at adjustable intensity throughout the entire process, be differently treated in each treatment zone, be caused to react and transported along a reaction line under control.

Abstract: An interlocking device for a HIP equipment that prevents possible damage to the HIP equipment arising from use of a furnace or processing gas in error and can control the oxygen concentration and pressure within the HIP equipment. The device includes a sensor for detecting a concentration of oxygen in the processing gas in a processing gas pipe system. If the sensor detects an excessively high oxygen concentration, a supply side interlocking mechanism closes a valve for the pipe system and disconnects a power source for a furnace in a high pressure vessel. A flow switch is connected to a safety pipe system having a safety device, and a thermocouple is provided for each of the safety and processing gas pipe systems and a relief pipe system.

Abstract: An injection molding machine includes a main structure formed of a pedestal including a top cover, a mold clamping unit supported on the pedestal; and an injecting unit supported on the pedestal. The injection molding machine further includes a control cabinet situated in the rear zone of the main structure; an input unit situated in an operator's control zone of the main structure. The input unit includes a data display device and an input keyboard. A cable connects the input unit with the control cabinet. To a bracket arrangement on the pedestal there is pivotally mounted a swivel arm swingable in a horizontal plane about a vertical axis. The input unit is secured to the swivel arm at a top side thereof such that the data display device is approximately at eye-level height. The input unit has, dependent upon pivotal positions of the swivel arm, a working position situated externally of the area occupied by the main structure and a position of rest within such area.

Abstract: The invention relates to a blow molding machine for the blow molding of hollow articles, with an accumulator head (1) for producing a preform and with a blow mold for forming a hollow article from the preform. After completion of a blow molding sequence, a piston positioning signal is derived by a control system (15), to regulate the position of a discharge piston (4) in the accumulator head (1), from a comparative signal of the actual position and set position of the discharge piston (4). The set position is determined by integration from a previously specified speed set point profile. The control system (15) further superimposes an influx signal on the comparative signal, which corresponds to the change in volume of plastic flowing from an extruder (2) to replace the discharged contents of the accumulator head (1).

Abstract: Molding apparatus, particularly for mounting specimens for microstructural analysis. A ramhead pressurizes a molding chamber, with the pressure, temperature and time of the cycle being set into the system from a control panel and proceeding automatically. The ramhead is advanced through a hydraulic system. A spring is provided for mounting the tubular molding chamber to permit the molding chamber to spontaneously align with the advancing ramhead. A wrench member is provided as an integral part of the apparatus to rotationally lock the handle to the molding chamber, to permit rotation of the molding chamber through the handle for removal thereof when desired.

Abstract: A blow molding machine for the blow molding of hollow articles includes an accumulator head (1) for producing a preform and a blow mold for forming a hollow article from the preform. After completion of a blow molding sequence and the filling of the accumulator head (1), a piston positioning signal is sent by a control system (15) to regulate the position of a discharge piston (4) in the accumulator head (1) derived from a comparative signal of the actual position and set position of the discharge piston (4). The set position is determined by integration from a previously specified speed set point profile. The control system (15) further superimposes an influx signal on the comparative signal, which corresponds to the change in volume of plastic flowing from an extruder (2) to replace the discharged contents of the accumulator head (1).

Abstract: A method of and apparatus for controlling an injection molding machine by reproducing injection time and stability of an inspection speed to thereby improve precision, stable moldability. In the injection molding machine, a nozzle valve (4) for changing the opening of this nozzle is disposed at the tip of the nozzle for injecting a molten resin, the degree of opening of this nozzle valve (4) is controlled to a predetermined quantity of opening in accordance with a preset screw moving position and the flow rate of an operation oil for pushing a screw (6) is controlled in accordance with the degree of opening of the nozzle valve (4).

Abstract: Apparatus, a method for extruding and expanding tubular products of polytetrafluoroethylene (PTFE) and the products produced thereby are provided. In the apparatus, at least one helical groove is placed in the wall of the extruder tip or die. Preferably, at least one groove is machined in the tip having a pitch angle of 45 degrees and at least one groove is machined in the die having a pitch opposite that (135 degrees) of the tip groove. In the expanded products produced according to the invention, at least one radial position within the wall of a tube substantially all of the longitudinal axes of the nodes are oriented at an angle between about 85 degrees and about 15 degrees with respect to the longitudinal axis of the tube.

Abstract: A vibrating type concrete pipe making machine, in which very high frequencies of vibration and large inputs may be attained without excessive wear on the mold or shortened bearing life. It also includes lubricant and coolant systems which are combined into a single system.

Abstract: A numerical control method and an apparatus therefor, in which a mold opening operation or an eject operation is performed during a metering operation so that the injection-molding cycle time is shortened. When a cooling period terminates or mold opening is completed during the metering operation, a programmable machine controller for sequentially controlling an injection-molding machine delivers information specifying a clamp axis or an eject axis, the displacement, moving speed, and moving direction of the axis, and a step feed command to a numerical control unit for controlling servomotors for axes of the injection-molding machine, through a common RAM. Pulse distribution for the clamp axis or the eject axis, based on this information, and pulse distribution for a screw rotating axis are alternately executed by a numerical control unit, which responds to the step feed command.

Abstract: A plant for the continuous and agglomerated manufacturing of articles obtained at least in part by compression of material. The plant comprises a carousel of working sectors equal to a number of fixed sectors with which the carousel operates. A frame supports the entire plant to allow the movement of the transfer elements for the mold and the products with respect to the working units.

Abstract: A hydraulic control system for the operation of three linear and one rotary hydraulic drive assemblies of the injection unit of an injection molding machine, comprising a variable delivery pump supplying drive fluid at a constant pressure gradient to several supply lines controlled by two control units which are arranged in parallel and feature proportional P/Q valves and pressure transducers, a smaller pressure maintenance pump which is controllable by a third proportional P/Q valve and switchable into one of the supply lines, and a hydraulic accumulator for the temporary supply of a large quantity of drive fluid. The proportional P/Q valves convert automatically from their flow rate programs, controlled by displacement-to-voltage converters on the injection unit, to pressure programs controlled by the pressure transducers.

Abstract: The self-adhesive tape has two sides, one of which forms a bottom side at which a supporting or carrier fabric is only superficially covered by a contact adhesive coating. At the other side, which forms the top side, a contact adhesive coating uniformly covers the supporting or carrier fabric so as to essentially form a plane which uninterruptedly engages a separating paper layer. Due to the crossing or intersection points formed by warp and weft threads of the supporting fabric such supporting fabric produces unevenness only at the bottom side, resulting in a smaller adhesive capability or action of the lower contact adhesive coating as compared to the adhesive capability or action of the upper contact adhesive coating uniformly engaging the separating paper layer. Through the apertures or openings formed in the supporting fabric these adhesive layers are interconnected which promotes the non-separability of the self-adhesive tape as a whole.

Abstract: A rotary molding apparatus is described, including a heating chamber, cooling chambers and supports for molds which melt and cast workpieces of plastic. The cooling chambers can be arranged circularly around the heating chamber which is disposed at the center, or the heating chamber can be movable such that an opening thereof can be selectively aligned to one of the cooling chambers. The molds can be moved via the supports from a cooling chamber to the heating chamber and back again. This apparatus optimizes component utilization and minimizes cycle times.

Abstract: A machine for the blow molding of synthetic resin hollow workpieces with a unit for shutting parted blow molds and with a turntable moved in steps, with a number of rests evenly spaced round the axis of the turntable for blown hollow workpieces. The rests may be moved into a handing over position in the parting plane (E) of the blow mold shutting unit and into at least one after-processing station. There is a blow stick which is supported by a blow stick carriage moved horizontally in this parting plane between the blow position at the blow mold shutting unit and this handing over position. The blow stick carriage is indexed in the blow position in a machine bed. The blow mold shutting unit has horizontal guides for the blow mold supports only at the side furthest from the blow stick carriage.

Abstract: An apparatus for continuously extruding, biaxially orienting and forming molded products from a web of thermoplastic material and further, continuously separating the products from the web selvage, stacking and handling the products and recycling the web selvage for further extrusion. The apparatus use continuous molding devices, namely, multiple mold cavities in a rotating polygon configuration over the peripheral surface of which the biaxially oriented web is securely and continuously positioned by a follower roller interfacing the polygon with a biaxial orientation device. Continuous and immediate interfacing is effected to prevent loss of orientation in the web which is kept at a temperature suitable for ingestion thereof into the mold cavities by vacuum, pressure or plug assist. In one preferred embodiment the inertia at the interface between the undulating peripheral surface of the rotating mold polygon and biaxial orientation apparatus is reduced to an optimal minimum.

Abstract: For over-molding a thermo-plastic material on a connector, the connector is, at the outlet of the machine having crimped the connector on a conductor, carried into a gripper maintaining the connector when introducting a core mounted on a conveyor. The connector is then carried into an injection mold from which it is extracted before complete cooling, to be carried to a cooling station comprising a mold similar to that of the injection mold but being at a lower temperature.

Abstract: A device for granulating plastic strands includes an extruder having a nozzle plate with boreholes arranged in front of a manifold and a starting valve connected thereto, and a cutting device with a knife head arranged centrally in a receiving housing wherein the cutting knives of the knife head rotate in the region of emergence of plastic strands which are acted on radially by a coolant. The cooling is accomplished by providing a cutting plate with cooling boreholes aligned axially with the nozzle boreholes of the nozzle plate. These cooling boreholes extend up to an insulating layer except for a recess which is connected to a coolant feedline for releasing at least one flow cross section of coolant which corresponds to the cooling boreholes.

Abstract: A control system for a plastic extruder which automatically controls both the melt pressure and the melt temperature of the plastic material at the outlet of the extruder barrel. The extruder barrel is divided into a plurality of heating zones and a zone temperature control means individually controls the temperature of each zone in accordance with predetermined zone temperature set points. A melt temperature control means automatically adjusts certain zone temperature set points such that the actual melt temperature is maintained at its desired value. The speed of a rotatable extruder screw is controlled by a melt pressure control means such that the actual melt pressure is maintained at its desired value. In accordance with the present invention, a separate feedforward controller and separate feedback controller are provided in the melt temperature control loop and in each zone temperature control loop such that independent specification of set point and disturbance responses can be achieved.

Abstract: A thermoforming machine having opposed mold platens includes a linkage system driven in cyclic movement by a single rotary cam to cyclically shift the platens between their open and closed position. The cam is driven by a variable speed motor which is controlled in a manner such that the rotary speed of the cam during different portions of a cam revolution may be set to a speed which is different than the rotary speed of the cam during other portions of each revolution. By adjusting the speed differential or by adjusting the angular extent of that portion of a revolution of the cam over which the different speed is maintained the time duration of any chosen portion of the cycle may be adjusted independently of the time duration of other portions of the cycle. The platens are mounted for reciprocatory movement upon a three-post frame.

Abstract: A molding press for forming articles from thermoplastic sheet materials comprises a generally hollow, fluid-tight housing, the lower surface of which comprises a flexible gas-tight diaphragm. The housing is movably positioned above a flat base, on which there is placed a mold covered with a softened sheet of thermoplastic material. During a molding cycle, the housing is lowered and interlocked with the base bringing the diaphragm adjacent the mold, and a fluid under pressure is introduced into the housing, causing the diaphragm to exert a uniform force on the thermoplastic sheet and forcing it to assume the contours of the mold. The base is equipped with mechanical and electrical interlock means which cooperate with the housing to insure that the fluid pressure cannot be applied until the housing and the base are safely interlocked and that the housing cannot be separated from the base while fluid pressure is supplied to the housing.

Abstract: A plastics introducing unit for a closure lining machine in which pellets are severed from a continuous rod and carried along part of a closed path to a transfer station where the pellets are deposited accurately centrally of the closures to be subsequently moulded into liners for the closures.