摘要:
An apparatus is described for moulding a plastics component onto a length of flexible web material, particularly a paper tube coated with thermoplastic synthetic material, the apparatus comprising a complete injection unit (5), a nozzle (26), an injecting head portion (12), external mould portions (11,11') and a core (14) which can be moved relative to these. As a means of increasing the output of the apparatus given a continuous supply of the web material, the invention provides that the core (14) is arranged on the end of a mandrel (23) which carries the length of material (35) with it and which is part of a rotatable mandrel wheel driven in cadence about its drive shaft (3), with its mandrel (23) projecting radially in one plane, that the external mould portion (11, 11') has at least two mould portions (11, 11') which can be moved apart and together laterally of the mandrel (23) to free the circular path of the mandrel (23), and that the mould portions can be held together by bringing them into positive and frictional engagement with a movable head plate (12) at the nozzle side.
摘要:
A process for producing a wax-like stick product by pouring molten ingredients into the open bottom of a container for the stick, cooling to partial solidification, heating to melt the upper surface, inserting a twist-up assembly in the open bottom which also closes the bottom, and cooling to solidify the stick product. The latter cooling is done in decreasing temperature stages.
摘要:
The present invention relates to an apparatus for forming centrifuged poles made of high-strength resin, which apparatus features a rotary mould in which the resin is spread on a support made of felt or the like, heating means being provided in proximity to the mould, characterized by the fact that, in its interior, said mould has guide means for guiding a delivery head which delivers said material, which head is movable to and fro and is connected by means of a hose to a resin feeding apparatus located outside the mould.
摘要:
Polymer melt material flow stream splitter devices, including runner extensions, T-splitters and Y-splitters are provided, for splitting an incoming flow stream channel for each melt material, into first and second branched flow channels of equal length which communicate with sets of first and second branched exit ports, each set in an axially aligned, spaced pattern in different peripheral surface portions of the respective splitter devices.
摘要:
A method for repairing worn heels of shoes, which is comprised of a mold built on the worn part of the heel with a strip of aluminum foil on the sticky side of an adhesive tape that is adhered to the curved wall on the side of the heel to be repaired, for the repairing material to be poured into there. A repairing material, comprising of a synthetic rubber, butadienestyrene, dissolved in the organic solvent mixture which is comprised of toluene, xylene, and amyl acetate, mixed with aramid fibers of various sizes, and a coloring material in a fluid mass for repairing worn heels and tears on straps and bands of shoes.
摘要:
A quick change locator clamp assembly for a plastic molding machine having opposed top and bottom platens adapted to receive, mount and support a sectional die having top and bottom clamp plates which comprises laterally spaced pairs of opposed locator clamp assemblies mounted upon and projecting from the platens. Formed within the clamp plates on one side of the molding die are similarly spaced opposed pairs of locator slots. Each clamp assembly includes a locator key mounted upon a platen of a shape to snugly receive the corresponding clamp plate slot for locating the molding die in a predetermined position relative to the platens. A rotatable clamp is mounted upon the key and adapted for operative retaining engagement with an adjacent clamp plate. The sectional die includes a reciprocal ejector plate, there being at least one reciprocal knock-out bar on the molding machine. A reciprocal lifter plate within the bottom anchor plate is connected to the ejector plate and removably interlocked with the knock-out bar.
摘要:
An apparatus for forming foil shapes having a cast plastic cap such as decorative inlays, emblems or automobile body side moulding wherein the apparatus comprises(a) means for advancing a continuous foil member along a horizontal path,(b) means for cleaning and priming at least one surface of the foil member,(c) means for providing an adhesive composition to one surface of the foil member,(d) means for affixing a release liner to the surface of the foil member provided with adhesive,(e) means for printing the foil member with a plurality of decorative patterns in one or more colors,(f) means for embossing said foil member in registry with the decorative patterns,(g) means for cutting foil shapes from the foil member in registry with the decorative patterns,(h) means for casting a clear fluent plastic material onto the foil shapes, and(i) means for curing or otherwise hardening the plastic.
摘要:
A wear sleeve having tapered ends is secured to a drill pipe by placing tapered split seal rings adjacent the ends of the sleeve to seal the annulus between the sleeve and pipe, introducing exothermically polymerically setting liquid epoxy plastics material into the annulus via a long elastomeric riser tube pushed into an inlet port in one seal ring until the epoxy rises well into another long elastomeric riser tube pushed into an exit port in the other seal ring, meanwhile heating the interior of the pipe within the sleeve to e.g. 150.degree. F. by blowing hot air through the pipe, and when the plastics material has set, rotating the riser tubes about their axes to break off the sprues, and removing the riser tubes and seal rings.