Tetra Laval Holdings & Finance Patente

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There is described a linear motor system, comprising:- a track (1);- at least one movable member (2) coupled to the track (1) and configured to move along said track (1), the at least one movable member (2) comprising:- a first element (20),- a second element (21), relatively movable with respect to the first element (20), and- at least one movement detector (22) configured to transmit a movement signal (M), wherein the movement detector (22) comprises at least one magnet (226) positioned at one of the first (20) or second element (21), and at least one magnetometer (224) positioned at the other of the first (20) or the second element (21); and- a processing unit (5, 23), configured to calculate a movement of the second element (21) with respect to the first element (20) as a function of the movement signal (M) received from the movement detector (22).

The present invention relates to a system (100) and a corresponding method (200) for producing a UHT milk product (MP) by direct UHT heating. The method (200) comprises feeding (220) milk (M) into a heating device (110), heating (230) the milk (M) by the heating device (110) to increase a temperature of the milk (M) to a first temperature within a range of 135 to 137° C, maintaining (240) the milk (M) inside the heating device (110) at the first temperature for a first time within a range of 30 to 120 sec, feeding (260) the heated milk (M) into a homogenizing device (120), and homogenizing (270) the heated milk (M) by the homogenizing device (120), thereby producing the UHT milk product (MP).

A pump (100) for pumping a liquid food product (F), the pump (100) comprising a housing (30), an impeller (14) arranged to rotate inside the housing, a star wheel (12) arranged to be driven by the impeller, and a base unit (10) to which the star wheel (12) is connected, the base unit being movable in a longitudinal direction (H), from a closed position (P1), to an open position (P2). An adjustment device (60) is configured to adjustably set a position of the base unit in the longitudinal direction (H) to thereby, when the base unit is in the closed position, provide in the longitudinal direction (H) a predetermined adjusted distance (D) between the impeller and the star wheel and/or between the impeller and the base unit.

There is described a compressor device (13) for a pressurization system (12) of a packaging machine (1) configured to produce packages (2) starting from a tube (3) of packaging material, the compressor device (13) comprises an impeller (16) and a casing body (17) internally defining an impeller vane (18) and a receiving seat (19) for the impeller (16), the impeller (16) and the receiving seat (19) are separated by a gap (24) which fluidically connects the impeller vane (18) with an external environment (50) outside of the compressor device (13) for allowing the passage of air in overpressure from the impeller vane (18) through the gap (24) and towards the external environment (50); the compressor device (13) comprises a seal member (25) arranged at said gap (24), the seal member (25) is configured to be controlled in: an opening position, in which it delimits a passage together with said impeller (16) or said receiving seat (19) for allowing the passage of air in overpressure through the gap (24); and a closing position, in which it fluid-tightly seals the gap (24).

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An automatic heat-sealing quality control system (12) to automatically control a quality of a heat-sealing of a sealing strip (6) to a longitudinal edge of a packaging web (3) at a heat-sealing station (7) in a packaging machine (1), where sealed packages (5) containing pourable food products are continuously produced from a continuous vertical tube (2) filled with the pourable food product and formed by longitudinally folding the packaging web (3) to overlap longitudinal edges thereof and then heat-sealing the overlapping longitudinal edges. The system (12) comprises a visible-light imaging camera (19) designed to operate in the electromagnetic spectrum visible to human eye to capture and output visible-light digital images; a thermal imaging camera (20) designed to operate in the electromagnetic spectrum invisible to human eye to capture and output thermal digital images.

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The disclosure relates to a homogenizer (100) configured to homogenize a liquid product (LP), the homogenizer (100) comprising: a seat (122) and a forcer (123), the forcer (123) being arranged in proximity to the seat (122) to form a gap (130) between the forcer (123) and the seat (122), wherein the gap (130) has an inlet (131) for receiving the liquid product (LP), and an outlet (132) for allowing the liquid product (LP) to exit the gap (130), a flow restricting element (150) facing the outlet (132) of the gap (130) to thereby break up a stream (S) of liquid product (LP) coming from a gap (130) into at least two separate streams (S', S"), the flow restricting element (150) being arranged at a distance (D40) from said outlet (132) being at most 20 times a minimum height (D1) of the gap (130).

An automatic heat-sealing quality control system (12) to automatically control a quality of a heat-sealing of a sealing strip (6) to a longitudinal edge of a packaging web (3) at a heat-sealing station (7) in a packaging machine (1), where sealed packages (5) containing pourable food products are continuously produced from a continuous vertical tube (2) filled with the pourable food product and formed by longitudinally folding the packaging web (3) to overlap longitudinal edges thereof and then heat-sealing the overlapping longitudinal edges. The system (12) comprises a visible-light imaging camera (19) designed to operate in the electromagnetic spectrum visible to human eye to capture and output visible-light digital images.

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A method (800) for assessing a sealing (200, 202) of a carton package (114) arranged to hold a food product (FP) is disclosed. The sealing (200, 202) is produced by using ultrasonic sealing technology. The method comprisescapturing (802) an image data set (500) depicting the sealing (200, 202), wherein the image data set (500) comprises a first data sub-set (600) associated with a first color channel and a second data sub-set (602) associated with a second color channel,identifying (804) an adherence section (702a, 702b) by using the first data sub-set (600), andidentifying (806) a non-adherence section (704) by using the second data sub-set (602).

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There is described a unit (8) for grouping packages (2) containing a pourable product in groups (10), the unit (8) comprises: a conveyor device (11) for advancing a sequence of packages (2), each package (2) of the sequence of packages (2) being spaced from one another by a first gap (G1); a gripping device (12) configured to grip one package (2b) of the sequence of packages (2) at a time; the gripping device (12) is configured to: accelerate the gripped package (2b) with respect to the other packages (2) and towards preceding packages (2) so that the gripped package (2b) abuts against the immediately adjacent preceding package (2) thereby pushing a number of preceding packages (2) together for reducing or zeroing said first gap (G1) between them; and/or to decelerate the gripped package (2b) with respect to the other packages (2) and towards following packages (2) so that the gripped package (2b) is distanced from the preceding packages (2) and abuts against the immediately adjacent following package (2b) thereby pushing a number of following packages (2) together for reducing or zeroing said first gap (G1) between them.

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