APPARATUS AND METHOD FOR PACKAGING LARGE-SIZED PRODUCTS IN FILM Russian patent published in 2021 - IPC B65B9/02 B65B11/08 

FIELD: packaging.

SUBSTANCE: invention relates to a new apparatus and method for individual or group packaging of products of medium and large dimensions in a film. The apparatus for packaging large-sized products in a film is comprised of a supplying conveyor, a packaging module, a module for sealing longitudinal seams, and a removal conveyor, wherein the module for sealing longitudinal seams is comprised of a conveyor, two film sealers, a frame, and an electrical cabinet, the conveyor is made extendable and consists of three conveyors - a central one, rigidly fixed along the axis of the apparatus, and two movable side ones, rails and a steering wheel, each film sealer is comprised of a plate, a grip, a sealing unit, a pulling unit, a reducer motor, wherein the grip comprises an upper and a lower group of pulleys connected by belts, shafts, levers, hinges, pneumatic cylinders, the pulling unit comprises an upper and a lower group of pulleys connected by belts, an upper and a lower reeling rollers, shafts. The packaging module is comprised of a stand frame, an upper film unreeling unit, a lower film unreeling unit, a welding unit, and a control panel. The sealing unit comprises upper and lower groups of rollers connected by belts with a teflon coating, an upper and a lower heating elements, an upper and a lower pressing rollers, an upper and a lower cooling elements. The method for packaging large-sized products in a film includes four stages, the first stage includes supplying the product by the supplying conveyor to the packaging module, the second stage includes wrapping the product in the packaging module in a film, the third stage includes sealing the longitudinal seams of a film half-sleeve of the product in the module for sealing longitudinal seams, the fourth stage includes removing the packaged product by the removal conveyor, wherein the third stage includes gripping the longitudinal edges of the half-sleeve with the grips of the sealers, welding the seams in the sealing units and compacting the seams with the reeling rollers in the pulling units, wherein the height of the sealers relative to the conveyor of the module for sealing longitudinal seams is adjusted using screws, and the width of the conveyor is adjusted using the steering wheel by expanding the movable side conveyors along the rails relative to the central conveyor.

EFFECT: new apparatus and method for individual or group packaging of products of medium and large dimensions in a film.

11 cl, 5 dwg