Abstract:
The invention describes an apparatus for producing a fluids package, with a synthetic plastics coated paper tube, of which one end is closed by an injected synthetic plastics lid while its other end is closed by holding and welding the tube material, with a device (8) for forming a tube from a web (2), at least one intermittently rotatable mandrel wheel (27), an injection station (29), an endless conveyor (31) for the packages (34) during the course of their production, a filling station (63), a closing station (62) and with a removal conveyor (39).To increase the machine output and to permit simplification of some of the handling units, it is according to the invention envisaged that at least two mandrel wheels (27) should be disposed one beside the other to rotate about a common axis (43) and in front of which, viewed in the direction of movement (20) of the relevant paper tube, there is a folding device (8) and in front of that web distributing station (25) and behind which (27) there is the at least two-track endless conveyor (31) which has for the packages (34) receiving containers (30) which are adapted to be brought into positions which are in a rectilinear extension of the relevant package path (20), the receiving containers (30) revolving on the lower strand (35).
Abstract:
Described is a drive for injection mould parts of a synthetic plastics injection moulding apparatus for injecting a wall part on a paper web, with at least one supply injector fixed on a carrier, a plurality of injector heads rigidly connected thereto and with driven connecting levers.So that parallel webs of a packaging tube can be passed more closely beside one another so that it is possible to manage with a few plasticising units in the smallest space and with short flow paths for the synthetic plastics material, it is according to the invention envisaged that the direction of conveyance of the paper web extend at a right-angle to the direction of opening and direction of closure of the mould parts, a plurality of pairs of movable mould parts being disposed adjacent one another at a distance (X) in the opening and closing directions, the connecting levers which take the form of ties and knee levers being so articulated that during injection, the forces which arise are mutually reinforcing and the carrier can be of lighter weight construction, at least in its middle portion.
Abstract:
A method and apparatus are disclosed for production of containers for packaging liquids. Plastic-coated supporting material is drawn as a web from a supply roll in a first direction along a web path. At a first position, the web is cut into sheets. The sheets are conveyed along a transport path in a second direction transverse to the web path. At a second position, each sheet is partially shaped into a tube, and an edge of the sheet is folded over and sealed. At a third position, shaping is completed to cause the side edges of the sheet to join, and the tube side is sealed. A plastic lid is molded onto the top of each tube, and the bottom end is folded and sealed into a quadrilangular bottom.
Abstract:
A fluid packaging arrangement comprises tubular side walls and end walls disposed at the ends thereof, forming a bottom and a top, wherein the top comprises thermoplastic material without a carrier material, is injection moulded to the outer edge of the tube along that edge and has a pouring spout, and the bottom is quadrangular and has triangular flaps which are folded over to lie against at least one adjacent panel. In order to provide such a packaging arrangement with a particularly advantageous bottom, the invention proposes that at least two mutually oppositely disposed triangular flaps of the bottom are folded inwardly into the plane of the bottom or outwardly on to the side wall, about the lower edge between the bottom and the side wall, and fixed in that position.
Abstract:
A device for manufacturing packages filled with liquid, including a device for forming a web of paper having a thermo-plastic coating, into a tube which is vertically displaceable step by step in the device from above downwardly. The device also includes longitudinal and transverse embossing devices; sealing jaws working together in pairs for transversely sealing the tube when it is intermittently positioned stationary at intervals corresponding to the length of a package; a pair of cutting blades disposed beneath the sealing jaws a distance equal to the length of the package for separating the package from the tube in the area of a transverse welded seam; and rotatable supporting plates for the package, disposed between the transverse sealing jaws and the pair of cutting blades. In addition, it is preferred that the transverse embossing device be disposed above, and that the forming station be disposed below, a feeding device, so that their movements are coupled together; and that the forming station have movable forming jaws which embrace a given package on all sides. The forming jaws preferably include movable longitudinal measuring jaws as well as transverse measuring jaws which substantially completely enclose the sides of the packages being filled.
Abstract:
A method of and apparatus for continuously making liquid filled packages wherein a tube is formed from a web, and, having been filled with liquid, is passed round a first turntable to be pre-shaped into packages and to shape first side walls of the packages. The tube is transversely sealed an cut on the first turntable and then passed round a second turntable to shape second, opposite, side walls of the packages.
Abstract:
Apparatus for sealing together portions of material having a sealable plastics coating includes opposed jaws each carrying a guide rail with a slot to receive marginal edges of the material and to spread these edges apart. Hot air is blown onto the spread apart edges to soften the plastics material. The edges are then urged together to form a seam which is accurately defined by the jaws.
Abstract:
A device for the mechanical separation of work pieces having plastic material in the area of separation, in particular, packages for flowable media joined together in pairs in the top wall is provided with feed and discharge means with guide rails and drivers and with separating blades arranged on a conveyor belt, with a first linear cutter with cutters arranged in pairs symmetrically with respect to a plane of symmetry, each with straight cutting blades followed by a round cutter with rotatable circular cutters arranged in pairs symmetrically with respect to the plane of symmetry, the cutters with the straight cutting blade being located in the cutting plane perpendicular to the plane of symmetry, and the straight cutting blades being disposed at an angle to the plane of symmetry such that the straight cutting blades get closer together in the conveying direction.
Abstract:
A pack for flowable contents, such as liquids, has tubular side walls, a bottom and a top wall, and is formed of a deep-drawable plastics material. The top includes a vertically upstanding, externally threaded collar and defines a pouring opening which is closable by a threaded top. The pack is formed by two half shells, and a seam passes around the pack in a longitudinal plane and extends nearly to the top free upper edge of the collar. The seam is interrupted in the top by the pouring opening and projects outwardly from diametrically opposite sides of the pack. According to a method for forming the pack of the invention, the collar is formed by two collar halves which are joined together at the seam. Threads are formed on the collar and the upper free edge includes an annular sealing surface for a correspondingly formed screw top.
Abstract:
A separating apparatus having a magazine in which stacked sheets made of plastics material or the like are arranged, and having movable suction means for moving the separated sheets to a workplace, where the sheets in the stack are supported in a horizontal position by holding means on the bottom edge of the magazine, and therebetween the bottom most sheet is freely disposed and is accessible to the suction means. The holding means comprises a rotatably driven shaft arranged along the two bottom edges of the magazine, the cross-section of which shaft, in the region of the length of the sheet, is recessed so as to form a shoulder, the depth of the shoulder being equal to the thickness of the sheet to be separated, and arranged approximately in the center between the edges of the magazine are the suction means which are able to move toward and away from the bottom sheet.