Abstract:
A method and an apparatus for effecting in a continuous manner the three operations of extruding, biaxially stretching and surface coating a seamless tubing of thermoplastic resin such as polyethylene, polypropylene, polyethylene terephthalate, etc. The coating material in a molten state is applied to the tubing while a formative state and prior stretching. A coated film is obtained which is dimensionally stable and is useful for food packaging.
Abstract:
Apparatus to make decorations on a prefabricated water-proofing bitumen-mix membrane, wherein the decorations are made by depositing solid particles, in the form of flakes, grains, sand or grit, suitable to adhere to at least one surface of said prefabricated water-proofing bitumen-mix membrane. The apparatus comprises at least one transfer member provided with a support surface suitable to receive, support and transfer the solid particles toward the surface to be enhanced of the prefabricated water-proofing bitumen-mix membrane. The support surface is provided with a plurality of cavities suitable to receive the solid particles. The cavities are made inside at least one surface portion of the support surface and the surface portion, essentially reproducing the shape and sizes of at least one of the decorations.
Abstract:
Provided is a steel strip stabilizing apparatus which allows shape correction and vibration suppression in a steel strip, particularly, plated steel strip, in a non-contact manner. The steel strip stabilizing apparatus includes an apparatus support body disposed on at least one side of a traveling steel strip and a steel strip stabilizing unit comprising a magnetic field generating pole disposed on the apparatus support body to face the steel strip and a pole expansion part configured to provide steel strip attraction force to a steel strip-side end of the magnetic field generating pole so as to allow shape correction or vibration suppression in the steel strip. The present invention increases the (electro)magnetic attraction force on the plated steel strip that passes through a plating bath, and thereby effectively ensures shape (curvature) correction or vibration suppression (damping) in the plated steel strip and prevents plating variations in the steel strip, and ultimately makes it possible to improve the quality of the plating of the steel strip.
Abstract:
Aspects of methods and apparatuses herein relate to making elastic laminates, and more particularly, methods and apparatuses for applying fluids onto elastic material positioned on an advancing substrate. The elastic material may be in various forms, such as for example, elastic strands, ribbons, and/or panels. Particular embodiments of the apparatuses and methods disclosed herein provide for the application of viscous fluids, such as adhesives, in pre-determined patterns to elastic material positioned on an advancing substrate.
Abstract:
Methods and apparatus for coating substrates. A die can be employed for extrusion coating an elongated substrate, where the die defines a coating cavity therein. The die can comprise a die block having a coating supply channel for supplying a coating material to the coating cavity. The die can further comprise a guide plug and a die plate removably coupled to the die block. The guide plug can comprise a substrate inlet having a non-circular lateral cross-section, and the die plate can comprise a substrate outlet also having a non-circular lateral cross-section. A coating system comprising such a die can operate to coat a substrate where the substrate can be pushed at least partially through the die and contacts the coating material therein.
Abstract:
A coating apparatus and method are disclosed that applies a coating to a product in a uniform and controlled manner. The coating apparatus comprises a feeding stage, an optional pre-treatment stage, at least one coating stage and a finishing stage. The coating stage(s) comprise a coating material feeder and a coating device. The coating device includes an aperture conforming to the perimeter of a substrate to be coated in a first and second dimension. As the substrate passes through the aperture, coating material is applied in a uniform and consistent layer. The coating material also back fills minor surface imperfections and blemishes on the substrate to achieve a consistent finish across the whole area where coating material is applied.
Abstract:
A method and apparatus to produce decorative mouldings, wall panel sections and columns, which are widely used in the construction industry. The method is a sequence of advancing a core, constructed from preformed expanded polystyrene (EPS), in a straight horizontal plane, with restraining devices preventing lateral and vertical movements, through a coating chamber. The coating chamber is filled with a thick liquid stucco or plaster or cement-like mixture and imparts a layer of the coating on the preformed core. The thickness of the coating layer is controlled with templates having an opening correspondingly larger than the core size and with the desired decorative profile. The apparatus can be configured to apply the coating on all sides of the core. In the case of a decorative moulding, the coating application can be limited to the exposed decorative surfaces only.
Abstract:
A coating apparatus and method are disclosed that applies a coating to a product in a uniform and controlled manner. The coating apparatus comprises a feeding stage, an optional pre-treatment stage, at least one coating stage and a finishing stage. The coating stage(s) comprise a coating material feeder and a coating device. The coating device includes an aperture conforming to the perimeter of a substrate to be coated in a first and second dimension. As the substrate passes through the aperture, coating material is applied in a uniform and consistent layer ranging from 0.001″ to 0.250″. The coating material also back fills minor surface imperfections and blemishes on the substrate to achieve a consistent finish across the whole area where coating material is applied. The coating device includes first and second shell portions. The first shell portion has a concave surface surrounding the aperture portion. The concave surface allows for coating material to collect prior to deposition upon the surface of the substrate. The second shell has a substantially flat face and a mirror aperture that aligns with the aperture of the first shell. A groove is formed along the perimeter of the aperture to collect coating material for coating the object as it passes through the apertures of both shells.
Abstract:
A continuously and synchronously operated plastics coating device for elongated bamboo poles or the like consists of a plastics feeding unit having a plastics injection unit planted in a perpendicular relationship to a molding member. Plastic is injected thereout in a film state through a round fissure so to coat a continuously forward-moving bamboo pole with a film of plastics. The pole is fed through one end of the assembly and moves into the film of plastics so that a continuous coating process is effected thereby.
Abstract:
An apparatus for tinting a soft contact lens which is received in a fixture including an inlet and an outlet for directing predetermined fluids therethrough for engagement with predetermined surfaces of the contact lens. The apparatus comprises a carrier for carrying the fixture in a predetermined orientation; a guide arrangement for defining a predetermined path of travel; a motive assembly for propelling the carrier along the predetermined path; and a plurality of fluid application stations arranged along the path, each fluid application station including a fluid release member. The guide track and the motive assembly cooperate for aligning the inlet of the fixture with each fluid release member sequentially as the carrier travels along the predetermined path, for delivering a quantity of fluid to the fixture and the contact lens therein. A method for tinting soft contact lenses comprises the steps of mounting a contact lens to a fixture including an inlet and an outlet for directing predetermined fluids therethrough for engagement with predetermined surfaces of the contact lens; mounting the fixture to a carrier in a predetermined orientation; guiding the carrier along a predetermined path of travel; arranging a plurality of fluid application stations along the predetermined path, each fluid application station including a fluid release member; and further moving the carrier as it moves along said path in a direction for aligning the inlet of the fixture with each of the fluid release members, sequentially for delivering a quantity of fluid to the inlet.