A folding unit for producing folded packages of pourable food products from sealed packs, comprising: movable conveyor which are fed with a plurality of packs at an input station, which feed packs along a forming path and output folded packages at an output station; and folder cooperating with each pack to perform at least one folding operation on pack comprising: at least one pair of shells which are integrally movable along the forming path and are movable relative to each other along a direction transversal to the forming path; shells of each pair may be set along the direction in: a fully closed position in which they exert a pressure onto a relative pack, so as to at least complete a folding operation onto relative pack; and an open position in which they are detached from the corresponding folded package.

A packaging apparatus includes a packaging unit and two heater rollers. The packaging unit installs a stretch film on an article to be packaged and discharges the article to be packaged installed with the stretch film along a conveyance surface. The two heater rollers heat the stretch film positioned below the article to be packaged discharged from the packaging unit. The heater rollers have contact portions with the article to be packaged positioned higher than the conveyance surface. Among the two heater rollers, height of the contact portion of one heater roller on a upstream side in a discharge direction relative to the conveyance surface is lower than height of the contact portion of the other heater roller on a downstream side in the discharge direction relative to the conveyance surface.

A packaging apparatus includes a packaging unit and two heater rollers. The packaging unit installs a stretch film on an article to be packaged and discharges the article to be packaged installed with the stretch film along a conveyance surface. The two heater rollers heat the stretch film positioned below the article to be packaged discharged from the packaging unit. The heater rollers have contact portions with the article to be packaged positioned higher than the conveyance surface. Among the two heater rollers, height of the contact portion of one heater roller on a upstream side in a discharge direction relative to the conveyance surface is lower than height of the contact portion of the other heater roller on a downstream side in the discharge direction relative to the conveyance surface.

For closing packages (9) provided with a movable pouring spout, an adhesive is applied to one or both portions of a first pair of folding portions (16) which are movable integrally with an inclined wall (14) of a chamfered corner (10) of the package (9). The first folding portions (16) may be coupled to a second pair of folding portions (18), which are movable integrally with an oscillatable tongue (12) of the spout. The adhesive adheres the second portions (18) to the first portions (16) when the tongue (12) moves toward the inclined wall (14).

Dual and multi-modulator projector display systems and techniques are disclosed. In one embodiment, a projector display system comprises a light source; a controller, a first modulator, receiving light from the light source and rendering a halftone image of said the input image; a blurring optical system that blurs said halftone image with a Point Spread Function (PSF); and a second modulator receiving the blurred halftone image and rendering a pulse width modulated image which may be projected to form the desired screen image. Systems and techniques for forming a binary halftone image from input image, correcting for misalignment between the first and second modulators and calibrating the projector systeme.g. overtimefor continuous image improvement are also disclosed.

A frame (10) used in a packaging assembly for retaining a product within a box. The frame includes a panel (16) having a panel width (W1) greater than the box width. A front panel flap fold zone (26) corresponds to the front closure flap fold line of the box. A rear panel flap fold zone (30) corresponds to the rear closure flap fold line of the box. A central panel portion (34) extends between the front and rear panel flap fold zones. Front and rear panel flaps (36, 38) extend from the front panel flap fold zone and the rear panel flap fold zone, respectively. A detachment line (40) extends from the left edge (19) to the right edge (20) of the panel in the central panel portion to delineate front and rear central panel portions (42, 44). A sheet (18) extends across the central panel portion and attaches to the panel at opposing regions of the panel outside of the central panel portion.

A stretch packaging machine is provided with a lift mechanism and a tray movement mechanism. The lift mechanism has a plurality of loading members on which a tray is loaded and which lift up the tray toward film such that the tray contacts the film sealing an opening at the top of the tray. The tray movement mechanism is configured to move the tray slidingly over the loading members of the lift mechanism to a predetermined position on the loading members. A frictional coefficient of at least first loading members is such that contact between the tray and the loading members disposed on the near side in the moving direction in which the tray is moved by the tray movement mechanism is smaller than the frictional coefficient of second loading members disposed on the far side in the moving direction.

A stretch packaging machine is provided with a lift mechanism and a tray movement mechanism. The lift mechanism has a plurality of loading members on which a tray is loaded and which lift up the tray toward film such that the tray contacts the film sealing an opening at the top of the tray. The tray movement mechanism is configured to move the tray slidingly over the loading members of the lift mechanism to a predetermined position on the loading members. A frictional coefficient of at least first loading members is such that contact between the tray and the loading members disposed on the near side in the moving direction in which the tray is moved by the tray movement mechanism is smaller than the frictional coefficient of second loading members disposed on the far side in the moving direction.

The system includes a packing machine and one or more video cameras to detect the quality of packs of tissue paper products, and/or of the wrapping sheet used for wrapping the packs. A control unit is provided to manage the detected images and, if necessary, to compare them with reference images.

The system includes a packing machine and one or more video cameras to detect the quality of packs of tissue paper products, and/or of the wrapping sheet used for wrapping the packs. A control unit is provided to manage the detected images and, if necessary, to compare them with reference images.