Abstract:
An automatic opening and closing device for a mold assembly includes a base, a pivot seat, a first extensible unit, an upper mold mounting unit, two shafts, a second extensible unit, a left arm and a right arm. The first extensible unit can move the upper mold mounting unit downward to clamp or release the mold, and the second extensible unit is used to move the pivot seat between two positions. When the pivot seat is in a first position, the upper mold mounting unit can be lowered down to secure or release the mold by the first extensible unit, when in the second position, the upper mold mounting unit and the mold can be rotated an angle, to perform opening or closing of the mold assembly.
Abstract:
A molding method and apparatus is shown which utilizes a plasticizing or injection unit in combination with a horizontal booking press having a first or moveable mold platen carrying a first portion of a mold or molds, and a second, or fixable, door platen carrying a second portion of a mold or molds. The door platen swings open and closed on a hinge, and is fixable in its closed position. When the moveable mold platen is in its′ closed position adjacent the fixed position of the door platen, a mold cavity is formed by the first and second portions of the mold or molds, and material is injected into the mold cavity.
Abstract:
A mold, a molding apparatus embodying said mold, and a method of use thereof. The mold has a moveable mold core and a multi-part mold base having at least a fixed mold base and at least one moveable or slideable mold base slideable from an adjacent to an adjoining position with regard to said fixed mold base. When the moveable mold core is in its closed position the slideable mold portions are adjoining the fixed mold portion to define a mold cavity. The mold base may be shaped so as to aid in forming a part, or to hold a sheet of material onto which molding material is to be deposited so as to encapsulate the part on one or more edges or surface regions.
Abstract:
In a process for producing, in particular, optical moulded parts from plastic, a first mould plate (1′) is moved in the direction of the second mould plate (2′) until the mould plates (1′, 2′) make contact at stop faces (9, 10). Subsequently, the first mould plate (1′) approaches the second mould plate (2′) through a tilting movement. In this case, plastic is injected into the cavity (15) which is formed between the first mould plate (1′) and a second mould plate (2′). Shortly before termination of the clamping movement, the two mould plates are caused to be released from one another in the region of the stop faces (9, 10). The two mould plates are then clamped in parallel.
Abstract:
A method and apparatus are provided for encapsulating a workpiece in a material having a lower melting temperature than that of the material for the workpiece to form an encapsulated block of standardized size and shape which may be mounted in a standardized fixture to facilitate machining on the workpiece. The invention includes both specialized molds for use in encapsulating a workpiece for various types of machining and systems for clamping and injecting encapsulant into such molds under pressure. After machining on a given side, a block is re-inserted in the appropriate mold and re-encapsulated to standardize size and shape for a subsequent machining operation. The process of machining and re-encapsulation are repeated until all sides of the workpiece requiring machining have been machined, at which time the encapsulant is removed from the workpiece, normally by being heated and melted.
Abstract:
A molding apparatus and method of use thereof. The molding apparatus has a stationary mold base, and at least one moveable mold core rotatable into and out of a facing relationship with the stationary mold base. When the moveable mold core is in its closed position, it cooperates with the stationary mold base to define a mold cavity. The mold base may be shaped so as to aid in forming a part, or to hold a sheet of material onto which molding material is to be deposited so as to encapsulate the part on one or more edges or surface regions. Structure may also be encapsulated onto the surface of the material during the molding operation.
Abstract:
A molding apparatus and method of use thereof. The molding apparatus has a stationary mold base, and at least one moveable mold core rotatable into and out of a facing relationship with the stationary mold base. When the moveable mold core is in its closed position, it cooperates with the stationary mold base to define a mold cavity. The mold base may be shaped so as to aid in forming a part, or to hold a sheet of material onto which molding material is to be deposited so as to encapsulate the part on one or more edges or surface regions. Structure may also be encapsulated onto the surface of the material during the molding operation.
Abstract:
A process and a device for duplicate molding on at least one part of a glazing, placed in a mold, particularly a monolithic or laminated glazing, of glass and/or of transparent plastic, by injection of plastic has at least two stations: a main station for the pressurization of a first mold, the injection of a plastic and the release of the molding pressure of the mold. Additional operations are being performed on a second mold at an auxiliary station. Transfers of the molds from the auxiliary station to the main station and vice versa are provided.
Abstract:
A tooling for injection-molding a part, the tooling including two cavity blocks each including a cavity formed therein of a shape corresponding to a shape of a part that is to be molded once the cavity blocks have been superposed, at least one of the cavity blocks including an ejection mechanism ejecting the molded part and including at least one ejector movable between a molding position and an ejection position. The ejector is guided to move between its two positions along a curved path, or a circular arc, of shape that corresponds to a shape of a portion of the mold part to be extracted from the cavity.