摘要:
A gas-exhausting marking device that is easily attached to the molding device in an appropriate position where the marking device exhibit sufficient gas-exhausting effect. The upper surface and the bottom surface of the marking device according to the present invention are configured to be breathable to allow gas to flow therethrough.
摘要:
A hybrid injection molding machine that has the capability to draw an decorative or other sheet into a mold cavity prior to injection into the mold has opposing male and female mold parts. One of the mold parts has an insert formed from a porous metal so that a vacuum may be drawn through the insert in order to draw a decorative sheet into all aspects of the insert cavity. The decorative sheet is held in place with a retention mechanism that is selectively attachable to either of the two mold blocks.
摘要:
A hybrid injection molding machine that has the capability to draw a decorative or fabric sheet into a mold cavity prior to injection into the mold has opposing male and female mold parts. At least one of the mold parts has an insert formed from a porous metal so that a vacuum may be drawn through the insert in order to draw the fabric sheet into all aspects of the insert cavity so that plastic may then be injection molded into the cavity of the mold.
摘要:
A percussive instrument mallet includes a molded head, a shaft having an optionally threaded nose, and a rigid insert fixed completely within the head. The insert has an inner profile including threads or other protrusions that mate with the nose of the shaft, and an outer profile that is embedded in the mold material. An outer portion of the insert includes a weighting ring that is also embedded in the mold material. The method includes selecting a tool with an optionally threaded nose and a central bore, threading or otherwise securing an insert onto the nose of the tool, supporting a weight ring on the insert; placing the threaded insert and weight ring in a mold, molding the head while over-molding the weight ring and insert, drawing air out of the head through the central bore, disengaging the tool from the insert, and attaching a mallet shaft into the insert.
摘要:
The device for the suction of air in injection molds and the subsequent expulsion of molded pieces has a Venturi ejector connected to a first valve, that when the mold is closed causes the suction of air in a mold cavity, having at least one insert made from porous material through which and by means of a communication duct that defines a suction circuit, and a second valve, that after the solidification of the plastic material, causes the air to be blown towards the at least one insert made of porous material, cleaning the at least one insert made of porous material. The volume of air to be reduced in the second part of the injection cycle with the same empirical value of 90% efficiency of the Venturi ejector.
摘要:
To provide an injection mold capable of filling a necessary resin material for obtaining a desired molded article in a cavity space of a fine mesh structure, there is provided an injection mold according to an embodiment of the present invention composed of a core mold and a cavity mold, in which a cavity space is formed when the core and cavity molds are in a contact with each other, the cavity space surrounding a plurality of contact areas between the core and cavity molds. In the injection mold according to an embodiment of the present invention, at least one of the core and cavity molds has a through-hole which has an opening in a parting plane of the core and cavity molds and extends from the opening to an outside of the injection mold, the parting plane corresponding to the contact areas between the core and cavity molds.
摘要:
A process for making a multilayered article, the process comprising the steps of: (A) Providing a mold comprising: (1) A mold housing comprising (a) at least one injection port, and (b) defining a mold cavity within which are positioned two deformable, pre-molded polymeric sheets; and (2) A removable, hollow core equipped with at least one vent, the removable, hollow core positioned between and space apart from the two polymeric sheets; (B) injecting under high pressure a viscous, crosslinkable, thermoplastic polymer into the mold cavity between the two polymeric sheets and around the removable core, (C) Drawing a vacuum on the mold cavity through both the vent in the mold housing and the vent in the removable, hollow core before, during and/or after the polymer has been injected into the mold; (D) Forming a less than fully cured multilayered article in the mold cavity; and (E) Removing the less than fully cured multilayer article from the mold cavity.
摘要:
A molding system and related method for forming a molded article, such as a container, is disclosed. In one embodiment, the injection material is supplied though a side gate and drawn into the mold cavity using a vacuum assist and optional heating of the mold portions, if necessary. This creates a preform having a closed end with a smooth outer surface without gate marks or other vestiges of the injection molding process. The preform is then blow molded to form an article or container having a smooth outer surface adjacent to a closed end thereof.
摘要:
A molding system and related method for forming a molded article, such as a container, is disclosed. In one embodiment, the injection material is supplied though a side gate and drawn into the mold cavity using a vacuum assist and optional heating of the mold portions, if necessary. This creates a preform having a closed end with a smooth outer surface without gate marks or other vestiges of the injection molding process. The preform is then blow molded to form an article or container having a smooth outer surface adjacent to a closed end thereof.
摘要:
Rear quarter glass has a glass plate, a plastic molding, and a metal molding. A retainer is arranged between the plastic molding and the metal molding. The retainer has a first through-hole and a pin portion. The metal molding has a projecting portion that is inserted through the first through-hole. The projecting portion has an end section that projects from the first through-hole in a state inserted through the first through-hole. The plastic molding has a second through-hole through which the pin portion is inserted. The pin portion has an end section that projects from the second through-hole in a state inserted through the second through-hole. The end section of the projecting portion is swaged to the retainer by swaging through thermal deformation. The end section of the pin portion is swaged to the plastic molding by swaging through thermal deformation.