Abstract: A method (400) for controlling a regulating valve (206) of a packaging machine (100), wherein the packaging machine (100) is a roll-fed packaging machine configured to receive a roll of a carton-based packaging material (102). The packaging machine (100) is configured to be connected to a processing line (202) via the regulating valve (206), wherein the processing line (202) is configured to feed a liquid food product (216) to the packaging machine (100) through the regulating valve (206).

Abstract: A method for controlling a plurality of carts movable independently from one another along an endless track and configured to perform at least one task in order to carry out at least one operation onto respective articles; the method including the steps advancing the carts along the track, the track including at least one task section and at least one transient section; advancing each cart along a task-assignment section of the track arranged upstream of the at least one task section; advancing a plurality of articles along a feeding path and through an operation station; detecting the passage of each article at a detection station of the feeding path located upstream of the operation station; and controlling one respective cart perform the at least one task if an article is detected, during the step d) of detecting, when the cart is moving along the task-assignment section.

Abstract: A packaging machine includes a conveying device for advancing a packaging material web at least to a tube forming station at which the web is formed into a tube and for advancing the tube to a tube forming and sealing device to form and longitudinally seal the tube, a tensioning device to control tension of the web and/or of the tube and a control unit to control operation of the packaging machine. The tensioning device has at least one tensioning assembly having at least first and second drive rollers, a first drive motor connected to the first drive roller to rotate the first drive roller and a second drive motor connected to the second drive roller to rotate the second drive roller. The control unit controls the first and second drive motors such that a free loop of the web expands and/or advances between the first and second drive rollers.

Abstract: A packaging machine (1) for continuously producing sealed packages (2) of a pourable food product from a tube (4) of heat-seal sheet packaging material fed along a vertical path (A) and filled continuously with the food product by means of a fill conduit (8) extending inside the tube (4). The packaging machine (1) has a capacitive level sensor (14) located outside the tube (4) and in turn having a plate element (20) made of conducting material, positioned facing the fill conduit (8), and defining, together with the fill conduit (8), a capacitive element (22) whose capacitance depends, among other things, on the amount of food product between its plates. The level sensor (14) also has a detecting circuit (24) connected to and for detecting the capacitance of the capacitive element (22), and generating a level signal (SL) indicating the level of the food product inside the tube (4).

Abstract: A packaging machine includes a fixed structure. A number of forming assemblies are arranged successively along a vertical portion of a path of a strip of packaging material, for gradually superimposing opposite lateral portions of the strip to form a tube having a longitudinal axis. A sealing device seals the lateral portions to each other and forms a longitudinal seam of the tube. An actuating device is operatively connected to an angularly adjustable folding member of one of the forming assemblies, and activated selectively to rotate the folding member about the longitudinal axis. A sensor is disposed along the vertical portion of the path, downstream from the sealing device, and generates a position signal correlated to the angular position of the seam. A control unit receives the position signal and generates a control signal, which is supplied to the actuating device to restore the seam to the desired angular position.