Abstract: The present invention provides a method of forming proofed dough for baked goods in a predetermined shape, as well as an apparatus for practicing the method. The apparatus includes a closed dough handling system that includes a pressurized dough mixer, a dough transporting device joined to the pressurized dough mixer, and an injection molding device joined to the dough transporting device. The method includes the step of transporting proofed dough from the pressurized dough mixer through the dough transporting device to the injection molding device, wherein the injection molding device fills the injection mold with dough when it is connected to the dough transporting device, thus forming one or more pieces of dough having the predetermined shape within the molds. The injection molds containing the dough may then either be conveyed into an oven to form a baked piece of dough having the predetermined shape, or conveyed into a freezer to form a frozen piece of dough having the predetermined shape.

Abstract: A transfer/injection molding apparatus is defined that includes a charge forming unit, a molding unit and a charge overflow unit. The charge is formed so that the fibers therein are randomly oriented in substantially parallel horizontal planes such that they are always substantially parallel to the direction of initial flow into the cavity of the molding unit. Excess charge from the cavity is forced into the charge overflow unit, which is selectively located in an area where surface finish is less critical. The excess charge displaces an overflow pin, which is kept upwardly biased, under molding pressure, to be flush with the lower inside wall of the molding unit cavity.

Abstract: A stuffer device for supplying a substantially continuous stream of elastomeric feed stock in a fluid state to an inlet port of at least one injection molding machine is provided. The device comprises a feed stock advancing unit remote from an injection molding machine having a conduit associated therewith connecting the feed stock advancing unit to the inlet port of the injection molding machine and a controller for the feed stock advancing unit to provide a measured amount of feed stock to the inlet port commensurate with the needs of each injection cycle.

Abstract: The invention relates to a hollow shaped molding process which comprises injecting a molten resin into a main cavity which has an injection port provided with a floating core at its one end and a sub-cavity at the other end through an openable communication port, injecting a compressed fluid from the injection port, moving the floating core toward the communication port, and discharging the resin into the sub-cavity through the communication port, wherein the resin positioned at the center is discharged into the sub-cavity by the moved floating core, and the floating core is moved into the sub-cavity through the communication port.

Abstract: An injection molding apparatus includes a nozzle which is directly connected to a mold for injecting a molding material into the mold. The mold defines at least one cavity in the shape of a element to be molded and at least one gate passage, each gate passage interconnecting a separate cavity with the nozzle. The shape of the gate passage permits a rapid curing of any residual molding material, and permits separation of the mold and the nozzle before the molding material in each cavity is cured. The nozzle is then used for a subsequent procedure or molding process while the molding material in the cavity cures. The nozzle defines a first bore and a second bore arranged longitudinally in sequence, and a side hole for introducing the molding material into the first bore. The nozzle includes a first plunger which is selectively reciprocally movable in the first bore, and a second plunger which is selectively reciprocally movable in the second bore and in a central bore defined in the first plunger.

Abstract: An apparatus for the manufacture of plastic pellets including an extruder, a chiller positioned to receive and solidify extruded strands from the extruder and, a pelletizer for converting such strands to pellets. The apparatus includes a quality testing device having a valve connected to the extruder, an injector having a sample receiving position operably connected to the valve, and a sample mold for forming solidified test samples of the material for analysis. The injector also has an ejection position operably connected to a mold inlet for injecting such samples into the mold.

Abstract: A recycling apparatus in which high density polyethylene, thermal polyolfin, or coated or non-coated oriented polypropylene and rubber are mixed into a batch and converted to useful molded products. The apparatus includes a first mixer, a second mixer, a conveyor belt system, a deflector sheet, a first ram, a second ram, a conduit system, and a mold. The first and second mixers alternately provide a batch to the conveyor belt system. The conveyor belt system alternately transports the batches to a first and second ram. Each ram having an opening, an outlet, and a ram piston. A deflector sheet or flip plate permits a first batch on the conveyor belt to be deposited into the opening of the first ram in a first position and alternately permits a second batch on the conveyor belt to be deposited into the opening of the second ram in a second position.

Abstract: A method and mold apparatus are provided for forming and trimming a vehicle inner door panel. The panel is a shaped laminate including a vinyl cover layer and a structural foam backing layer having a glass fiber reinforcing substrate. Upper and lower mold members have peripheral seals which define a mold cavity when the mold is closed. A plurality of movable trim blades are carried by the lower mold member adjacent the seal. The trim blades move among retracted, intermediate and extended positions. Hydraulic rams open and close the mold and move the trim blades. Sheets of vinyl and substrate are placed across the lower mold member and the mold is closed to seal the substrate and vinyl layer about their periphery. As the mold closes, abutment surfaces on both mold members advance the trim blades to an intermediate position to pinch the cover layer against the substrate inwardly of the peripheral seals. A two-part polyurethane liquid foam system is injected into the cavity.

Abstract: A pre-plasticization type injection molding machine is equipped with a plasticizing part for plasticizing synthetic resin material by turning a screw in a heating cylinder and an injection part for injecting the plasticized material through a nozzle by advancing and retreating an injection plunger into and from an injection cylinder. A conduit connects the tip of a plasticizing chamber, consisting of the heating cylinder, with the tip of an injection chamber consisting of the injection cylinder. The screw advances at the time of injection, closes the conduit with its tip. The opening of the conduit in the injection chamber is arranged on the periphery of a nozzle side-wall. An injection passage extends from the injection chamber toward the nozzle, the passage being open to the center of the nozzle side-wall.

Abstract: A fast cycle plasticator/injector unit for plastic molding machines having a screw type plasticating extruder for feeding thermoplastic material through a sealed fluid flow path to an accumulator which periodically feeds the thermoplastic material through a sealed fluid flow path to an injector that comprises a cylinder with an inlet and an outlet port and a powered piston valve element disposed for reciprocating axial and rotary motion within said cylinder and having a fluid flow channel along a portion of its length in cooperative structural relationship with said inlet port to provide an open fluid flow channel between the inlet port and the charge chamber of said cylinder when the piston is in a first rotational orientation and to block fluid flow from the inlet port to the cylinder when the piston is in a second rotational orientation.

Abstract: A system for injecting molten material into a receiving apparatus, such as a moulding apparatus. The system according to the invention utilizes at least a melting chamber and an injecting chamber which are incorporated in a same housing and which are connected through a canal for transferring molten material contained in the melting chamber to the injecting chamber. The system further utilizes an apparatus for controlling the feeding of the injecting chamber and the triggering of the injecting apparatus when the injecting chamber has a predetermined quantity of molten material to be injected.

Abstract: In an injecting unit of an injection molding machine, a feeding unit is mounted on a feeding block and serves to feed the material to be processed through a shaft into a plasticizing cylinder. The feeding unit is mounted on a carrier, which is slidably mounted on a track rail so that the feeding unit can be emptied into an emptying passage. The track rail extends along and is symmetrical to the vertical line of symmetry of the injecting unit. Owing to that arrangement the injecting unit is substantially symmetrical and when the feeding unit is in emptying position its center of gravity is disposed in the vertical plane of symmetry of the injecting unit or is close to said plane. Besides, the feeding unit can be moved approximately in said plane of symmetry to its emptying position.

Abstract: The invention relates to an apparatus for the production of building units from an afterhardening mixture containing cement and/or lime as binding material. The raw mixture is continuously fed and pressed by stamping into a die with CO.sub.2 gas at a pressure higher than atmospheric being passed through the raw mixture in the die space. Through an instantaneous reaction of carbonation, the material is hardened to a formed body. The CO.sub.2 gas is prevented from escaping by a gastight seal in the vicinity of the inlet port of the die. Further towards the outlet port, the pressure of the CO.sub.2 gas is decreased. In the vicinity of the outlet port only as much CO.sub.2 gas is fed as is necessary for the completing of the chemical reaction. Thus, any loss of gas will be minimized. The continuously discharged body is cut to size by using a saw.

Abstract: The injection machine according to the present invention has an infrared ray heater disposed outside a transparent glass tube cylinder a reflector disposed outside the infrared ray heater, an injection cylinder to which the glass tube cylinder is coupled by way of a changeover valve, a transfer mechanism to transfer the resin material from the glass tube cylinder into the injection cylinder, and an injection plunger in the injection cylinder to inject the molten resin. Since an infrared ray heater is used for the purpose of melting the resin material, a desired temperature can be achieved in a few minutes, and the forming may be started in a short time.

Abstract: A method and a device are disclosed for feeding a number of strips of material of one constituent from different batches thereof, into each extruder of a single- or multiple-extruder system in order to ensure that the extruder product from each extruder is more consistently uniform. To achieve this, such a system is fed from one end from pallets deposited on conveyor belts so that a plurality of strips of material from different batches, but of the same mixture, are fed into each appropriate extruder hopper. The empty pallets are removed from the pallet system by a conveyor belt passing along the charging end.

Abstract: An hydraulic press for pressing plastic mats reinforced with glass fibers into formed parts, which press has a stationary and a slidable cross-piece as well as a press drive which drive for driving the slidable cross-piece has at least one adjusting cylinder with a stroke length corresponding to the working range of the press and at least two couplable press cylinders of short stroke wherein for coupling each press cylinder to the slidable cross-piece a coupling rod and a clamping means is provided, the press being distinguished in that in order to better accomodate incorporation of the press drive into an existing press, each press cylinder has a hollow lifting body through which an associated coupling rod is guided, and for coupling the lifting body to the associated coupling rod a clamping device is included on the lifting body.

Abstract: Highly purified metal halide salts are made into a frangible stick having uniformly spaced lines of weakness which permit the stick to be broken readily into cylindrical pellets of uniform size. The pellets are particularly useful to supply the vaporizable fill in high intensity metal halide discharge lamps. The stick is formed by intermittently loading salt powder into the sized entrance to a channel through which the salt is forced, and compressing the charge against the back end of previously formed salt stick by means of a polished plunger.

Abstract: The present invention relates to equipment used for investment casting and may find application in various fields of engineering to enable automation of the process of manufacturing easily fusible patterns.The proposed apparatus comprises a pressure casting die formed of two parts, one of which is mounted for reciprocated movement in the horizontal, an injection means formed of a heated body with a chamber to receive a pattern material, an air cylinder with a hollow piston and a hollow rod, a means for evacuating the chamber and the pressure casting die cavity after introducing a pattern material therein, and a means for supplying a fluid to the pressure casting die upon evacuation of the latter, said fluid supply means comprising a moving element fitted with a channel adapted to intermittently communicate a fluid source with the pressure casting die cavity.

Abstract: Relates to plastic material molding machines and to a unitary assembly of parts installable between the hopper and the plastic pellet material inlet opening of the molding machine for providing bodily translatable movement of the hopper to one side of the machine where the remaining contents of the hopper may be discharged into a drainage collector for possible re-use at a later time. The translatable movement of the hopper is usually performed when the hopper content is to be changed and is carried out by moving or sliding the hopper while in upright position along a track extending laterally of the machine. The track occupies the upper position of a gas-tight conduit, preferably rectangular in cross section, which serves to deliver a gaseous medium to the contents of the hopper, such as hot dry air for the purpose of removing moisture from the plastic pellets in the hopper.