Patent classifications
B29C31/041
Injector for filling a mold with plastic particles
The invention relates to an injector for filling a mold with plastic particles, with a front part (2) and a base part (3), wherein the front part (2) has a mold-side orifice (23) and a feed for compressed air (15) and a feed for plastic particles (11), and the base part (3) is attached axially in the direction of conveyance behind the front part (2) and has a piston-cylinder unit (30, 37, 38), wherein a closing piston (49) for closing the mold-side orifice (23) is axially movable through the front part (2), together with an apparatus and a method for the production of a particle form part. The injector is characterised in that the closing piston (49) and the piston rod (47) bearing the closing piston on its front side have equal diameters or substantially equal diameters and the method comprises the following steps: feeding form particles from a material container to a mold by means of a pipe thermoplastic welding of the form particles in the mold into a particle form part under a supply of heat,
wherein steam is added to the form particles to be fed.
Systems and techniques for splicing together optical fiber ribbon cables having different core-to-core spacings
A system forms, at an end of a multifiber ribbon cable, a multifiber ribbon cable segment having an enlarged core-to-core spacing. A UV-transparent mold is mounted on top of a chassis. The mold defines a plurality of individual fiber channels corresponding to individual fibers of the existing multifiber ribbon cable and having a spacing equal to that of the enlarged core-to-core spacing. Each individual fiber channel passes through the internal cavity. The assembled mold further includes an injection system for receiving light curable, flowable material from the reservoir and pumping system and feeding it into the internal cavity, and at least one vent for allowing air to escape from the internal cavity as the light-curable, flowable material is fed into the internal cavity. The injected material is cured by exposure to a curing light.
Method of manufacturing sheet with needle like protrusions
The method includes the steps of: preparing a mold and a liquid filling device; and filling needle-like recessed portions with a liquid medicine by repeating the following: a filling operation in which the liquid medicine is supplied to the mold from the liquid filling device and the needle-like recessed portions are filled with the liquid medicine while a nozzle tip is brought into pressed contact with a surface of the mold; and a moving operation in which a nozzle is relatively moved with respect to the mold while the nozzle tip and the surface of the mold are in contact with each other, wherein the nozzle is held in a Z-axis drive unit configured to vertically move the nozzle while an elastic body is provided in the Z-axis drive unit, while the nozzle tip is brought into pressed contact with the surface of the mold.
Apparatus and techniques for coating pipeline field joints
An injection molding apparatus has a mold tool that is positioned around a field joint of a pipeline to define a mold cavity. Two or more pumping chambers communicate with the mold tool. Each chamber is expansible to draw in molten polymer and contractible to drive the polymer into the mold cavity. Expansion of one chamber is synchronized with contraction of another chamber. The operation of supply and injection valves associated with the chambers is also synchronized, both with each other and with expansion and contraction of the chambers. In the embodiment described, two pumping chambers are defined within a common pressurizing cylinder, in which the chambers are separated by a piston. The piston is movable within the cylinder to determine and to synchronize expansion and contraction of the chambers.
INSTALLATIONS AND METHODS FOR MOULDING FOOD PRODUCTS WITH A PRESSURIZED AIR FOOD PRODUCT EJECTION SYSTEM FROM A MOULD DRUM
A moulding installation and method for moulding food products from a pumpable foodstuff mass are described. A revolving mould drum is provided with multiple mould cavities and a mass feed member is arranged at a fill position to transfer foodstuff mass into passing mould cavities. The foodstuff mass forms a food product in the mould cavity. A pressurized air food product ejection system includes air ducts in the mould drum that extend to the cavities and at least a portion of the surface delimiting a mould cavity is air permeable. The ejection system further includes a pressurized air source to feed pressurized air at a regulated ejection air pressure thereof to the air ducts. A controller is adapted to input at least one target parameter related to filling of the mould cavities with the foodstuff mass via the mouth of the mass feed member. The controller is adapted to automatically set an ejection air pressure by the pressurized air source on the basis of the inputted target parameter.
Resin injection method into laminated core, and rotating electric machine using the resin injection method
An object is to easily inject resin into a gap of a laminated core which constitutes a rotating electric machine. Included are: a resin supplying unit which feeds the resin; and a resin injection unit which injects the resin into an axial hole of the laminated core. The resin injection unit has an injection pipe and an elastic ring attached to the injection pipe. This elastic ring is made to firmly attach to the inner periphery of the axial hole; the resin is supplied from the resin supplying unit; and the resin is injected into the gap of the laminated core through the axial hole of the laminated core.
Method and system for inserting an insert element into a panel product, the panel product produced thereby and method and system for performing a tensile test on the inserted insert element
In a method and a system for producing a panel product device, in which a panel pre-product is provided, comprising at least one recess formed in a panel surface and having a delimitation, and at least one insert element is provided, intended for anchoring in at least one of the recesses, the system comprises automated means for inserting the insert element into the recess in the panel pre-product, and automated means for filling an intermediate space between the insert element and the delimitation of the recess with a curable or curing filling fluid. In a method and a system for testing the loading resistance of the connection between the insert element and the recess in the panel surface of the panel pre-product, a variable tensile testing force is applied in an automated manner to the insert element up to a predetermined tensile testing force. Finally, a set of auxiliary assembly tools for use in the production method or system is provided, comprising a covering and positioning device for inserting and positioning the insert element in the recess and a connecting device for releasably connecting the insert element to the covering and positioning device.
DEVICE AND METHOD FOR THE MASS PRODUCTION OF AT LEAST PARTIALLY FIBER-REINFORCED INJECTION MOLDED PARTS
A device for production of at least partially fiber-reinforced injection molded parts includes at least one injection molding tool, with at least one first tool part and at least two second tool parts that can be selectively connected to the first tool part in order to form an injection molding cavity. The device also includes at least one placement unit, at least one injection unit and at least one electronic control. The at least one placement unit automatically places at least one tape section of a fiber-reinforced plastic tape on a cavity section of one of the second tool parts or on an injection molded workpiece disposed on said cavity section. The at least one injection unit injects a molding compound into the respective injection molding cavity and the at least one electronic control controls the placement unit and the injection unit.
Filling method of conductive paste and manufacturing method of multi-layer printed circuit board
A filling method of conductive paste includes a step of providing a protective film on a principal surface of a metal foil clad laminated sheet, a step of forming bottomed via holes, a step of removing the film from a surface to a midway thereof to form a conductive paste flowing groove having the via holes, a step of disposing a housing member on the film, and thereby, causing a conductive paste injecting channel and a vacuum evacuating channel to communicate with a conductive paste flowing space S, a step of depressurizing the space S via the channel, and a step of injecting conductive paste into the space S via the channel, and thereby, filling an inside of the via holes with the conductive paste.
Filling Injector and Method for Operating a Filling Injector
The present invention relates to a filling injector and to a method for operating such a filling injector. The filling injector has a sensor for detecting a predetermined detection position of a closing piston unit and a counting device for counting the number of detection positions of the closing piston unit in which it is situated in the predetermined detection position. By means of this, when a predetermined number of detection positions is reached, a maintenance signal can be emitted and the maintenance interval can be adapted to the actual use of the filling injector.