Tetra Laval Holdings & Finance S.a.

Heiko Bub

Wilhelm Reil

Bernhard Korus

Gottfried Pusch

Udo Liebram

Device for separating packages for flowable media

A method and apparatus for manufacturing a pack for flowable contents in a deep draw process having tubular side walls, a bottom and a top. The top has a pouring opening having an upstanding collar and a seam that passes around the pack in a plane that is oriented in the top so that the plane is interrupted by the pouring opening and projects on diametrically oppositely disposed sides almost as far as a free upper edge of the collar. The collar is formed of two collar halves joined together at the seam, and threads are provided on the collar for a screw top. An annular fitting sealing surface is provided on the free upper edge of the collar

Method and apparatus for manufacturing a pack for flowable contents

A tool for deep-drawing and sealing open plastics shells (3, 3') has a shell-like metal body (2, 2') which includes a flat edge (11, 11') at the open side. A heat insulating attachment is secured to the edge of the metal body so that the outer seam of a first plastic shell can be joined by sealing, to the outer seam of a second plastic shell oppositely disposed to it without supplying additional heat.

Tool for deep-drawing and sealing open plastics shells

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.

Pack for flowable contents, a method for manufacturing - a pack of this

A description is given of an apparatus for forming and deep-drawing the neck region at the edge of a plastics half shell, having a deep-drawing tool (3) and a counter-pressure plate (2) which are movable in two directions relative to each other, wherein the deep-drawing tool (3) embraces a deep-drawing cavity (29) in shell-like manner and has a recess (30) in the side wall (31) at the edge (32). So that deformation of the collar at the edge of the plastics half shell and also over-heating of the plastics plate for forming the half shell are avoided, according to the invention it is provided that the counter-pressure plate (2) has at least one opening (16) in the contact face (17) facing the deep-drawing tool. (3), the opening having an adjacent receiving space (19) therebehind, in which an elastic mould part (25) which is movable into at least two positions (III) is arranged in such a way that in the first retracted position (III) it is disposed flush to the rear of the contact face (17) and in the second sealed position it projects into the recess (30) at the edge (32) of the deep-drawing tool (3).

Apparatus for forming the neck region on a plastics half shell

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.

Growing community of inventors

Bodenheim, Germany

Heiko Bub