Fabio Perini

Mario Gioni Chiocchetti

Angelo Benvenuti

Mauro Gelli

Giulio Betti

Romano Maddaleni

Quirino Fernando Ridolfi

Quirino Ridolfi

The grinding unit includes a slide provided with a movement towards and away from the disc-shaped cutting blade. On the slide, at least a first grinding wheel and a second grinding wheel are arranged so as to act on a first flank and on a second flank of a cutting edge of the disc-shaped cutting blade. The first grinding wheel and the second grinding wheel are respectively carried by a first arm and by a second arm that are mounted so as to rotate around a respective rotation axis with respect to the slide () in order to move towards and away from the disc-shaped cutting blade. The first arm and the second arm are associated with angular locking members adapted to lock the first arm and the second arm in a respective operative angular position with respect to the slide.

Grinding unit for a cutting blade, machine comprising said unit and related method

The grinding unit includes at least one grinding wheel adapted to rotate around a respective rotation axis, and a thrust actuator adapted to push the grinding wheel against a cutting edge of a disc-shaped cutting blade. A load cell is also provided for detecting an axial thrust exerted on the grinding wheel.

Grinding unit for cutting machine and machine comprising said unit

The cutting machine includes pairs of coaxial blades to simultaneously cut two rolls for each cutting cycle.

Cutting machine to cut rolls or logs of web material and relative method

The device comprises at least a continuous movable flexible member () carrying a series of contact members (A,B) for the products (R; R; RN) aligned with one another. A section of the movable flexible member is devoid of said contact members to allow the trimmings (Rc, Rt) to fall. At least a longitudinal supporting element () of the products (R; R, RN), is also provided, parallel to the movable flexible member, the reciprocal position of said flexible member and of said longitudinal element being such that the products advance in contact with the contact members (A,B) of the flexible member and with the longitudinal element. A pusher () inserts the series of products with the respective trimmings between the flexible member and the longitudinal supporting member. The flexible member () is controlled with a variable speed to carry the section thereof devoid of contact members time by time to the level of the head and tail trimmings (Rc; Rt) of two consecutive series of products.

Device and method for eliminating trimmings from series of products, such as rolls or the like

The machine comprises a mandrel (), a winding member () to helically wind said strips of web material about said mandrel and form a continuous tube; and rotating disk-shaped cutter (), cooperating with said mandrel (), to cut the continuous tube (T) into individual tubular products (M). The disk-shaped cutter () is carried by a rotating arm ().

Machine for producing tubular products with a cutter carried by a rotating arm and relative production method

A machine for producing a tubular product by helical winding of strips of web material including a mandrel and a winding member to helically wind the strips of web material around the mandrel is disclosed. To improve adhesion between the strips, at least one pressure member is provided, cooperating with the mandrel, disposed downstream or upstream of the winding member with respect to the direction of advance of the tubular product being formed on the mandrel. The pressure exerted by the pressure member promotes adhesion of the strips forming the product.

Machine and method for forming helically wound paper tubes having improved mechanical resistance

The device includes at least one continuous flexible suction conveyor which is equipped with openings and which conveys articles along a transfer path from an article feeder to an article received. A discharge point for the trimmings is provided along the transfer path. A suction system is also provided which is associated with the conveyor and which generates a suction through the openings along the transfer path. At least one obturator element, which is movable along the transfer path and which temporarily closes the openings of the conveyor opposite the trimming or trimmings, is provided.

Device and method for eliminating front and end trimmings from series of rolls

The device for removing front and end trimmings in a series of aligned rolls comprises: at least one continuous flexible suction conveyor (); a suction system () associated with the conveyor so as to generate a suction through openings (A) in the conveyor; a device for eliminating trimmings along a roll transfer path; a device receiving rolls from the conveyor. The receiver comprises at least two alternate paths for the rolls, which are arranged in sequence along the conveyor () and onto which the rolls may be alternately sorted.

Device for eliminating the front and end trimmings from series of rolls and for sorting the rolls

The severing machine comprises, in combination: a series of cutting blades ( ) rotating about respective axes; a feeder ( ) rotating about an axis ( A) approximately parallel to the axis of the disk-shaped blades, having at least one peripheral seating ( A, B, C) for the products (L): a flexible member ( ) passed around at least one portion of the periphery of the rotating feeder, in order to retain the products in the respective seating during cutting (FIG. ).

Severing machine for elongated rolls of weblike material having multiple cutting blades

The severing machine comprises at least a first series of disk-shaped blades ( A; B) rotating about their own axis, which series is carried by a moveable support ( ) capable of bringing the series of blades alternately into an active zone wherein the cutting of the products takes place and a parking zone. In addition, at least one barrier ( ) is provided separating the active zone from the parking zone.

Growing community of inventors

Lucca, Italy

Mario Gioni Chiocchetti