B29C45/176

INJECTION MOLDING UNIT FOR AN INJECTION MOLDING MACHINE FOR PROCESSING PLASTICS
20230226730 · 2023-07-20 ·

An injection molding unit for an injection molding machine for processing plastic including a carrier block and an exchangeable plasticizing cylinder which is removably receivable in a receiving bore, where a locking device is provided for locking and unlocking the plasticizer unit together with the carrier block by relative movement of bevel surfaces extending crosswise to the injection axis together with operatively connected locking elements which are guided on bearing surfaces, where a bearing nut is provided on the outer surface of the plasticizer cylinder, the surface of which bearing nut pointing in the direction of the carrier block forms at least one of the bearing surfaces, and a plurality of locking elements are provided which either have bevel surfaces pointing toward each other, independently of the carrier block and plasticizer cylinder, which slide on each other during a locking movement and during an unlocking movement, or have, on the side spaced apart from the bearing surface of the bearing nut, mutually inclined bevel surfaces which slide synchronously on bevel surfaces of the carrier block during a locking movement and during an unlocking movement.

Modular injection molding barrel and screw assemblies
11260569 · 2022-03-01 ·

A modular barrel and screw assembly for use in injection molding including a barrel having a barrel body, a separate barrel injection portion and a separate barrel end cap, with the barrel end cap being removably connected to the barrel injection portion and the barrel injection portion being removably connected to the barrel body, and a screw assembly having a screw tip assembly removably connected to a screw portion, wherein an injection chamber having a shot volume is defined by the barrel injection portion, the barrel end cap and the screw tip assembly. The modular barrel and screw assembly enables servicing of the barrel injection portion, barrel end cap and/or screw tip assembly without requiring removal of the barrel body, and enables use of a plurality of alternative corresponding separate barrel injection portions, separate barrel end caps and tip assemblies that provide a plurality of different shot volumes.

PROTECTIVE COVER FOR A PLASTICISING CYLINDER

A protective cover for a plasticising cylinder of a shaping machinehas an elongate internal space which is enclosed by at least one wall and in which the plasticising cylinder can be arranged. A terminal box for heating strips arranged on the plasticising cylinder projects into the internal space, and one of the walls of the protective cover has an opening which is closed by an openable cover member. In the opened condition, the opening allows access to the terminal box or the interior of the terminal box.

SHUT-OFF NOZZLE WITH NEEDLE VALVE, INJECTION DEVICE AND INJECTION MOLDING MACHINE

A shut-off nozzle includes: an injection nozzle in which a flow path is formed; a needle valve provided in the flow path coaxially with the injection nozzle, the needle valve being movable forward and backward in an axial direction; and a guide ring provided in the flow path. The needle valve includes a columnar shaft portion, and the guide ring is configured to guide the forward and backward movement of the needle valve at the shaft portion. An injection device includes: a heating cylinder; a screw provided in the heating cylinder; and the shut-off nozzle provided in the heating cylinder. An injection molding machine includes: a mold clamping device configured to clamp a mold; and the injection device configured to inject a resin.

INJECTION MOLDING MACHINE
20230256659 · 2023-08-17 ·

An injection molding machine includes: a mold clamping unit; an injection unit; and a safety cover that surrounds the mold clamping unit and the injection unit. The safety cover includes a detachable panel that is attached to an opening. The safety cover includes a door portion that moves between a position where the door portion blocks a second portion of the opening and a position where the door portion does not cover the opening. The safety cover has a size that is smaller than the opening but greater than the second portion. A detachable panel has a first stopper that restricts an opening motion of the door portion when only the second portion is open. The safety cover is provided with a second stopper that restricts the opening motion of the door portion when the opening is entirely open and the detachable panel is removed.

Resin supply systems
11305471 · 2022-04-19 · ·

Resin supply system in which resin material is stored in a pouch in a degassed state ready for use. The pouch comprises a body portion forming a reservoir for resin material and a connector portion in fluid communication therewith. The connector portion includes an outlet which is configured to be connected to an injector head of an injector assembly, the injector head being connectable to a mould by means of connecting tubing to provide a resin supply thereto. The pouch is configured to be mountable in a housing of the injector assembly and is compressed by hydrostatic pressure of water surrounding the pouch in a chamber of the housing. The application of pressure by a piston moving in a direction transfers pressure to the water and then to the pouch in a controlled manner to provide the resin supply to the mould. After use, the pouch is removed and discarded thereby substantially eliminating the need for cleaning of the housing after use.

Plasticizing unit

A plasticizing unit is provided for an injection unit of an injection moulding machine with a support element arranged beneath the cylinder and connected therewith. To simplify adjusting of the nozzle centre, a fixing element surrounds the end of the support element facing away from the cylinder such that a distance is present between the fixing element and the support element. Several adjusting elements are provided, to produce a force-fitting and/or form-fitting connection between the fixing element and the support element to adjust the position of the support element relative to the fixing element in a plane orthogonally to the cylinder axis. The plasticizing unit can be clamped in and out with its fixing element in a clamping- and positioning system connected with the machine bed. On changeover of the plasticizing unit, an adjusting of the nozzle centre, which has been carried out once, is retained.

METHOD FOR VIEWING AND SELECTING PRODUCTION RESOURCES, IN PARTICULAR PERIPHERAL DEVICES, FOR THE INJECTION MOLDING INDUSTRY, AND AN INDUSTRIAL INSTALLATION

Method for viewing and selecting production resources, in particular peripheral devices, for the injection molding industry, which are organized in at least one work cell for producing an injection-molded part and connected to one another via a network. Following a manual storage request on a control device, in particular a work cell controller, or on a production resource, in particular a processing machine, all connected production resources are queried and defined data, such as the respective settings, as well as program sequences, formulations and other configurations, are read out from these and, together with the internal settings, in particular those of the processing machine, combined to form a mold data record for this injection-molded part. A listing of production resources for the injection-molded part producible on this processing machine can be automatically generated from the mold data record and displayed at an output location, preferably of the processing machine.

Injection molding machine
11110636 · 2021-09-07 · ·

An injection molding machine with an injection system and a clamping system. The injection system may include a removable injection module defining a portion of the material flow path. The injection module may include all of parts that come in contact with the material between the material source and the mold. The injection module may include a valve arrangement movable between a fill position to load the injection module with material and an inject position to eject material from the injection module into the mold. The actuators for the injection module may be supported on the machine rather than the injection module. The clamping system may include a platen linear actuator to open and close the mold, and a hydraulic clamping system to apply clamping force to the closed mold. The hydraulic clamping system may include a free-float valve manifold assembly that selectively places the hydraulic cylinders in free-float mode.

PLASTICIZING UNIT

A plasticizing unit is provided for an injection unit of an injection moulding machine with a support element arranged beneath the cylinder and connected therewith. To simplify adjusting of the nozzle centre, a fixing element surrounds the end of the support element facing away from the cylinder such that a distance is present between the fixing element and the support element. Several adjusting elements are provided, to produce a force-fitting and/or form-fitting connection between the fixing element and the support element to adjust the position of the support element relative to the fixing element in a plane orthogonally to the cylinder axis. The plasticizing unit can be clamped in and out with its fixing element in a clamping- and positioning system connected with the machine bed. On changeover of the plasticizing unit, an adjusting of the nozzle centre, which has been carried out once, is retained.