Abstract:
Hinge-lid packs for cigarettes or other pack contents are very expensive in respect of material consumption. A saving of material is achieved as a result of bevelled longitudinal edges (26,27) and lid longitudinal edges (28,29), while preserving the storage capacity, because, in particular, side tabs (31,32) and lid side tabs (33,34) of the side wall (13) and of the lid side wall (18,19) are made with less width and hence save material.
Abstract:
Various configurations of boxes of a corrugated or fiberboard material are manufactured by a machine and process in which scored marginal flaps of the preformed box blank material are laterally wrapped around forming mandrels or fingers to define corner and/or intermediate posts integral with a wall portion of the resulting box, with at least a portion of each flap laminated to the side wall.
Abstract:
A rectangular tray-type carton formed from a blank of plastics-coated board has a peripheral flange for attachment of a closure lid. The flange is formed after the erection of the carton side wall in a punch and die arrangement, by folding down elongate panels carried along the free edges of the side wall and by subsequently joining the panels together at their ends by means of overlapping tabs which are heat-sealed together. In order to avoid damage to the tabs during formation of the side wall the uppermost tabs are folded out of the plane of the blank before it enters the punch and die arrangement.
Abstract:
An apparatus and method for forming flat cut carton blanks into erected cartons with debowed carton side panels is disclosed. The apparatus includes a forming head receiving and directing a carton blank through forming guides, side walls engaging and supporting the carton side panels that bend into upright position relative to the carton bottom panel during descending movement through the forming guides. Presser fingers pivotally secured to the forming guides project inwardly into the forming head path. The presser fingers bend the side panels into cutout openings provided in the side walls to overbreak the side panels at fold lines between the carton side and bottom panels. An inclined surface with a sharp creasing edge abutting the fold lines enables the presser fingers to initially crease the fold lines and thereafter bend the carton side panels inwardly onto the inclined surface for controlled overbreaking movement. The height of the cutout opening allows each carton side panel to clear the upper periphery of the openings to prevent buckling. After debowing the side panels, the presser fingers engage the upper edges of the carton side panels to strip the erected cartons from the forming head during the ascending return stroke. Notches provided in the side walls serve to prevent interference contact of the presser fingers with the forming head.
Abstract:
A box blank with receptacle and cover sections each with side flaps and end flaps has a hinge panel joining the two sections. A vacuum pickup draws a flat blank from a supply stack to a feed carriage which transfers the blank past sprays that apply glue to the end flaps. The speed of the carrier varies, but beneath the glue sprays speed is uniform. The carriage delivers the glue coated box blank to a former and a tray forming head having concave and convex interacting pressure plates which maintain doubled over end flaps of each section in a concave configuration with respect to the box while the folded end sections are adhered to form a box tray from the blank. Former flap benders cooperate with the tray forming head to shape the box tray. A second vacuum pickup clasps the formed tray at the hinge panel and draws a shaped tray from the forming head into engagement with folding elements such that the cover and receptacle sections are bent together along the hinge panel to form a closed box.
Abstract:
A cartoning machine which folds a carton blank into a carton having a box body and a box lid which are connected together during a single rotation of an intermittently rotating rotary body. The rotary body is provided with a plurality of pairs of positive dies, each pair of positive dies having dies respectively corresponding to the box body portion and the box lid portion. Disposed at certain angular intervals around the rotary body are a magazine for supplying carton blanks, a box body folding device having a box body negative die, a box lid folding device having a box lid negative die, and an ejecting section for discharging completed cartons. Cartons are continuously formed by the intermittent rotation of the rotary body and the relative movement between the above two box folding devices and the pairs of positive dies, the dies in each pair being movable back and forth separately.
Abstract:
Machinery for three dimensionally forming register cut paper articles such as plates, bowls and saucers is operated with a single, register controlled material supply web and a 2:1 cyclic speed differential between the blank cutting station and the hot forming press. Rotational drive speed of the machine is set and limited by the cycle rate of the hot forming press but two or more, register cut product units are cut and stacked from a single ply, registered controlled web supply within a single cycle interim of the forming press. Consequently, the speed limiting step of the entire machine continues, with a single ply web supply to operate with a high percentage of maximum productivity.
Abstract:
The objects of the invention are the manufacture of drawn foil containers which have better appearance and strength and which can be made with these advantages from thinner foil and with greater depth. The essential apparatus employed to achieve these objects having a punch for drawing the container, is characterized by upper and lower peripheral guide structures located around the punch which present a plurality of intercalating radially aligned ridge formations for forming in accordance with the process alternate upwardly and downwardly directed light indentations in a flat foil blank before it is drawn and lightly guiding the indented blank to fold into double fold pleats which are thereafter drawn over a drawing edge to form the walls of the container. The container produced is characterized by double fold pleats in its walls.
Abstract:
A machine for the manufacture of tubes of cardboard or like sheet material that have a length substantially greater than their width, comprises a core about which the sheet is bent to the desired shape of the tube. Sheets are advanced one by one into registry with the core, and then are bent in concave molds that are hinged together and that swing one by one to bend first one half and then the other of the sheet about the core, after which the seam is sealed. An extractor for the tube is provided, in the form of rods that are slidably located in complementary grooves in the core and that have protruding wings which, when moving from retracted to extended position, contact diametrically opposite edge portions of the formed tube to strip the tube from the core.
Abstract:
The invention is concerned with a method for making an article such as a container having a circular end wall and a side wall folded from the arcuate edge of the end wall, the article being first formed as a flat blank having two panels conforming to the base and side walls, the peripheries of the panels intersecting each other with a slit being formed in the common intersecting portions to form a pair of hinges at the ends of the slit enabling one panel to be folded upwardly with respect to the other between two mold tools without rupturing the hinges, plastic material being injected into the mold to join the folded panels into a unitary container or similar article.