摘要:
A flexible, stackable container for storing a quantity of a product may include a package formed from a single sheet of a lid fitment attached to a top side of the package. The top side of the package may have an outer first surface of the film and outwardly extending corner seals formed in the film at the edges of the top side and surrounding the top side of the package. The lid fitment may include a base having a central opening and a lid having a complimentary shape to the base to form a seal therebetween when the lid is closed down onto the base. The base may be sealed to one of the top surface of the top side, to the corner seals surrounding the top side, or to both, such that a portion of the top surface is accessible from the exterior of the container when the lid is separated from the base of the lid fitment. In other embodiments, the lid fitment may be attached at an open top end of the package, either directly or by a reinforcement ring, and may further include a cover attached to the lid fitment or the reinforcement ring to retain a quantity of a product in the container when the lid of the lid fitment is opened until the cover is punctured or removed.
摘要:
An ultrasonic sealing device for a top fin of a gable- topped carton includes two jaws consisting of a jaw (2) with a planar active face and constituting the outer end portion of an ultrasonic horn (A1) and a jaw (6) constituting an anvil and having an active surface (10) which is planar except for upper and lower linear ribs (12) and (14) each extending the length of the surface (10). The lower rib (14) is linear and horizontal except for an upwardly bowed middle portion (16). The two jaws (2) and (6) serve to render gas-and-liquid tight a top fin of a conventional, plastics-coated paperboard, gable-top carton. The ribs (12) and (14) produce, in the outer surface of one of the outer sealing panels of the fin, corresponding furrows which extend over the whole length of the fin at levels where the inner sealing panels are sandwiched between the outer sealing panels, so as to seal the top fin in a gas-and liquid-tight manner along its whole length.
摘要:
A method for forming a top seal on a carton being conveyed along a processing path on a form, fill and seal packaging machine using a top sealer (22) including opposing sealing jaws (30,30') is provided. The carton includes top fin panels configured for sealing to one another to form a top seal. The method includes actuating a first control valve (72) to provide communication between a first pressurized fluid source (64) and a first port (66) of an actuator (38) for moving the actuator toward a first position. The actuator is operatively connected to the sealing jaws (30,30') to move the sealing jaws in a clamping direction while moving toward the first position. A second control valve (74) is actuated to inhibit fluid escape from the actuator through a second port (70) of the actuator to inhibit movement of the sealing jaws in the clamping direction.
摘要:
An apparatus for effecting closure of an open end of a carton blank by placing portions of the carton blank into overlying relationship to one another is provided. The apparatus includes a cam that rotates about an axis of rotation and a cam lever that is operatively connected to the cam. The cam lever is used to convert rotating motion of the cam into linear motion to define a first stroke distance. A pressure pad is mounted for movement toward and away from the portions of the carton blank. The pressure pad is capable of being moved in response to input provided by the cam to define a second stroke distance. An air spring is mechanically linked to the cam lever and the pressure pad such that the air spring absorbs a portion of the first stroke distance.
摘要:
Apparatus for forming a package comprises first and second holding elements (12) and (14) for holding a partially formed container between them at respective opposite upwardly extending edges of the partially formed container, there being no holding elements for the partially formed container at other respective opposite upwardly extending edges of the partially formed container. There is provided a driving arrangement for advancing the holding elements (12) and (14) and thus the partially formed container on a path (45), with a series of devices (22) to (36) distributed along the path (45) for performing operations in relation to the partially formed container.
摘要:
A carton closure system including a pressure pad (24) of conventional design which is urged against the external surfaces of a plurality of loosely associated overlying prefolded end side wall portions of the bottom end of a carton blank (32) which is disposed on a mandrel (34) which includes a backup pad disposed within the carton and contiguous to the internal surfaces of the prefolded end side wall portions to thereby capture the prefolded end side wall portions between the pressure pad and the backup pad. The force for urging the pressure pad initially against the loosely associated overlying prefolded end side wall portions and thereafter providing a sealing pressure against the infolded end side wall portions and maintain this sealing pressure for a time sufficient to permit solidification of the softened heatsealable component of the carton blank, is generated by means of a piston/cylinder (70) operating through a pivoted arm whose distal end carries a cam follower that is moved against a linearly reciprocative cam (120) which is operatively associated with the pressure pad.
摘要:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Heißversiegeln mehrerer Lagen eines Laminats aus dem insbesondere Giebelverpackungen zur Aufnahme flüssiger Lebensmittel herstellbar sind, wobei das Laminat eine Trägerschicht aus elektrisch nicht leitendem Material, beispielsweise Karton, und eine Versiegelungsschicht aus thermoplastischem Material, beispielsweise Polyethylen, an mindestens einer Oberfläche des Laminats umfasst. Problematisch ist das Heißversiegeln im hochfrequenten elektrischen Wechselfeld, wenn die Anzahl der Lagen des Laminats in dem Siegelbereich variiert. Um ein Verfahren und eine Vorrichtung zum Heißversiegeln mehrerer Lagen eines Laminats in einem hochfrequenten elektrischen Wechselfeld zu schaffen, bei dem Probleme durch einen zu großen oder zu kleinen Wärmeeintrag in die zu versiegelnden Lagen des Laminats vermieden werden, wird erfindungsgemäß vorgeschlagen, dass das elektrische Wechselfeld in einem ersten Teilbereich (71) des Siegelbereichs (70) mit einer ersten Leitung der HF-Spannungsversorgung und in mindestens einem zweiten Teilbereich (72) des Siegelbereichs (70) mit einer von der ersten Leitung abweichenden zweiten Leistung der HF-Spannungsversorgung erzeugt wird, so dass sich eine unterschiedliche Wärmeverteilung über die Teilbereiche (71, 72) des Siegelbereichs (70) ergibt. Die unterschiedliche Wärmeverteilung in den Teilbereichen (71, 72) erlaubt eine gezielte Anpassung an den in den jeweiligen Teilbereichen (71, 72) geforderten Wärmebedarf.
摘要:
There is described a folding unit (1) for producing packages (2) of pourable food products from sealed packs (3) having a longitudinal axis (A) and at least one end tab (14) to be folded and which projects in the direction of the aforementioned axis. The unit (1) has at least one conveying member (35, 28) which cyclically receives a relative pack (3), by the end corresponding to the tab (14), and which feeds the pack (3) along a forming path (B) crosswise to the axis (A) of the pack (3); and folding means (24) having an impact surface (43) which receives each pack (3) by the end corresponding to the tab (14), and which is carried by the conveying member (35, 28) to move between a first operating position, in which the impact surface (43) forms, with the feed direction (C) of the relative pack (3), an angle of over 90° and open in the direction of the forming path (B), so as to fold the relative tab (14), upon impact, onto the pack (3) in the travelling direction of the packs (3), and a second operating position, in which the impact surface (43) is rotated towards and cooperates with the pack (3).
摘要:
Apparatus for forming a package comprises first and second holding elements (12) and (14) for holding a partially formed container between them at respective opposite upwardly extending edges of the partially formed container, there being no holding elements for the partially formed container at other respective opposite upwardly extending edges of the partially formed container. There is provided a driving arrangement for advancing the holding elements (12) and (14) and thus the partially formed container on a path (45), with a series of devices (22) to (36) distributed along the path (45) for performing operations in relation to the partially formed container.
摘要:
An apparatus 10 for sealing packages 20 is to be mounted as a part of a larger packaging machine, which fills packages 20 with products or substances, preferably food or beverages but could be any other suitable substance, then closes and seals the packages using the sealing apparatus 10 by folding each package transversally, thereby closing it and sealing the transversal fold, and subsequently delivers the packages to a final folding station.