摘要:
The invention relates to a method for the production of tubes from a prefinished pipe element, by pressing of heated plastic blanks to form a multi-layer tube head, with simultaneous bonding of the tube head to the pipe element. According to the invention, each layer of the multi-layer tube head is produced individually, by pressing of a newly introduced plastic blank in each case, where the next blank for the subsequent layer is not introduced and pressed until after the layer previously produced is stable in shape. The invention also relates to a tube made of a pipe element (1) having at least one plastic layer, and a multi-layer tube head (2) molded on by pressing heated plastic blanks, with a neck part (8) opening out centrally in a dispensing opening (9) with an outside thread (11) to screw on a closure cap, where according to the invention, each layer (3, 6, 5) of the multi-layer tube head (2) is pressed in individually, layer by layer, onto the upper end of the pipe element (1).
摘要:
A packaging tube is provided which is substantially gas-tight and has low absorptivity, consisting of a tube of multilayer composite foil with a metallic barrier layer, a prefabricated plastic head piece having a discharge opening and an external thread, and a connecting body which consists of a composite foil containing a metal layer and at least one thermoplastic material layer. The head piece is placed on the connecting body and is welded thereto by means of the plastic layer. The circumferential rim of the tube overlaps the outer rim of the connecting body extending over or under the same, and its plastic layers are softened by the inductive generation of heat in the metal of the composite foil and are welded together while pressure is applied. The head piece has the shape of a cylinder or a truncated cone and is joined at its base area completely to the connecting body. At its lower end, the discharge opening has an enlargement in which at least one annular depression is made, into which plastic material of the connecting body is introduced during softening. The connecting body has a neck which corresponds to the shape of the enlargement and consists of an annular profiled washer or a profiled lid having an integral diaphragm.
摘要:
Apparatus for forming containers having a deformable tube and a closing cap attached to one end of the tube. A strip of deformable material is fed through a shaping tube and a mandrel axially positioned within the forming tube by means of an endless belt positioned within the mandrel and another endless belt positioned exterior of the mandrel. Welding means are provided to join the overlapped edges of the deformable material that has been shaped into a cylinder. Cutting means downstream of the welding means segment the welded cylinder into cylindrical tubes of desired length. A tube head is molded onto one end of each cylindrical tube.
摘要:
The invention relates to a method for producing tubular containers with an open filling opening and with an end that is provided with a seal. The inventive method comprises the following steps: separately producing a preform with a neck with definitive dimensions and a tubular body with smaller dimensions than the definitive form, the tubular body containing the open filling opening; fixing the preform that is produced to a drawing head by its neck and subjecting it to at least one partial heating process; introducing the heated preform that is attached to the drawing head into the inside of a multi-part closed blow mold in such a way that the open filling opening is air-tightly held at the lower end of the blow mold; fitting a blow nozzle to the filling opening of the preform.
摘要:
A flexible tube construction is provided including a tube body and washer, each comprising a laminate having a metal barrier layer and a plastic layer which are adhered to each other by a butt connection. A plastic tube head is adhered to a synthetic plastic tube head having an opening through which the contents of the tube can be removed.
摘要:
The invention relates to a two-chamber container, in particular as a non-resealable disposable packaging, wherein the two-chamber container has an inner chamber (1) and an outer chamber (2) surrounding the inner chamber (1), and a cap (3) produced by compression of plastics material, with which the upper edges of the wall of the inner chamber (1) and those of the outer chamber (2) are rigidly connected, the cap (3) having two separate channels (71, 72), and the inner chamber (1) being arranged asymmetrically inside the outer chamber (2) in such a way that a portion of its wall is secured to the cap (3) in the region between the channels (71, 72) in such a way that one channel (71, 72) is connected to one of the chambers (1 or 2) in each case.
摘要:
A process produces a tubular body with at least one dividing wall extending across its length and forming longitudinal chambers disposed next to each other. A foil strip is used whereby a dividing-wall strip or a section of dividing-wall strip is cut to length and is fastened at its lateral outer edges on the foil strip or section of the foil strip, with parallel alignment with the foil strip or section of foil strip. The lateral edges of the foil strip or section of foil strip are then joined with each other thereby either directly forming a tubular body or forming an endless tube, from which tubular bodies are then cut to length. The tube is then solidly joined with a tube head having a dividing bridge conforming to the arrangement of the dividing wall in the tubular body. The tube head has a dispensing aperture closable by a closure.
摘要:
A die-welding apparatus for connecting a tube body formed of a composite material having a plastic layer and a metallic layer including a die formed of a non-ferrous metal and having a radial slot and a hollow induction coil having one turn electrically conductively connected to the die, but which does not electrically bridge the slot.
摘要:
A plant for manufacturing and packaging tubes feeds the tubes via a conveyor belt to a packaging station, where they are packaged to form larger units. The foil strip is a dual or multiple-strip, cut by at least one partitioning blade into individual webs respectively welded in parallel planes to form endless tubes and cut by transverse cutters. The tubular bodies are assembled into a larger transfer group and jointly transferred to a turn table including a corresponding number of mandrels. The turn table conveys them jointly and stepwise to stations for fitting the shoulder portion with a threaded neck and the closure cap. The finished tubes are deposited on a discharge belt and fed to control regions for checking. Flawless tubes are received by the discharge belt and fed continuously to a tray.