A coil feeding device and a graphic machine thereof are provided. The coil feeding device includes a roller mechanism for carrying a coiled material, a base mechanism, and a compression rod mechanism. The roller mechanism includes a shaft penetrating through the shaft hole and a tension structure disposed on the shaft. The tension structure includes a first sleeve, a second sleeve and a tapered fixing member. When the first sleeve and the second sleeve are fixed to each other, the tapered fixing member holds the shaft to achieve mutual fixation of the coiled material and the shaft. By providing the second sleeve, the first sleeve and the tapered fixing member that cooperate with each other, the coiled material and the shaft are fastened to each other quickly, thereby improving production efficiency. Through the base mechanism, the coil feeding device is directly used on existing graphic machine for material processing.

A coil feeding device and a graphic machine thereof are provided. The coil feeding device includes a roller mechanism for carrying a coiled material, a base mechanism, and a compression rod mechanism. The roller mechanism includes a shaft penetrating through the shaft hole and a tension structure disposed on the shaft. The tension structure includes a first sleeve, a second sleeve and a tapered fixing member. When the first sleeve and the second sleeve are fixed to each other, the tapered fixing member holds the shaft to achieve mutual fixation of the coiled material and the shaft. By providing the second sleeve, the first sleeve and the tapered fixing member that cooperate with each other, the coiled material and the shaft are fastened to each other quickly, thereby improving production efficiency. Through the base mechanism, the coil feeding device is directly used on existing graphic machine for material processing.

Refill for a dispenser, with a material web wound to form a roll and at least one substantially axially adjustable bearing journal. The at least one substantially axially adjustable bearing journal is adjustable substantially axially outwards away from the roll starting from a defined inner end position in which it protrudes axially beyond the roll. A bearing unit for such a refill, and a dispenser for housing the refill and dispensing the material web are also provided.

An apparatus for exchanging paper rolls includes a paper supply mechanism having an inclined arm and a clamp assembly for receiving and holding a first paper roll; a second-roll hanger assembly arranged above the paper supply mechanism for receiving and holding a second paper roll; a slide rail arranged between the paper supply mechanism and the second-roll hanger assembly; an elevating assembly movably mounted to the slide rail; and a driving assembly for driving the elevating assembly to move along the slide rail. The elevating assembly picks up the second paper roll from the second-roll hanger assembly. To exchange the first paper roll with the second paper roll, the clamp assembly pushes the first paper roll away from the paper supply mechanism, and the elevating assembly lowers down along the slide rail to place the second paper roll in the paper supply mechanism.

A roll accommodation unit includes: a roll support shaft; a pair of side walls; and a pair of roll bearings that are attached to the pair of side walls, recessed portions are formed at upper ends of the pair of side walls, the pair of rolling bearings are attached to the side walls at positions corresponding to bottoms of the recessed portions such that the rolling bearings project upward beyond inclined surfaces of the recessed portions, the roll support shaft includes a support shaft main body, and a pair of small-diameter portions that are provided at both ends of the support shaft main body, and the roll support shaft is supported with the small-diameter portions abutting on outer circumferential surfaces of the pairs of rolling bearings in a state in which the support shaft main body is located at an interval from the recessed portions.

A roll accommodation unit includes: a roll support shaft; a pair of side walls; and a pair of roll bearings that are attached to the pair of side walls, recessed portions are formed at upper ends of the pair of side walls, the pair of rolling bearings are attached to the side walls at positions corresponding to bottoms of the recessed portions such that the rolling bearings project upward beyond inclined surfaces of the recessed portions, the roll support shaft includes a support shaft main body, and a pair of small-diameter portions that are provided at both ends of the support shaft main body, and the roll support shaft is supported with the small-diameter portions abutting on outer circumferential surfaces of the pairs of rolling bearings in a state in which the support shaft main body is located at an interval from the recessed portions.

An apparatus for securing a wrap or sheet roll is disclosed. The apparatus includes a cable in which a first end of the cable is mounted to a structure and a second end of the cable is mounted to a base plate. The apparatus further includes a lock notch provided at the cable. The apparatus has a lock pin removably mounted to the lock notch. The apparatus also has a lock plate mounted to the cable. The apparatus includes a sheet roll mounted to the cable as well. The sheet roll is mounted to the cable by drawing the base plate through an opening provided at the sheet roll. The lock plate is placed above the sheet roll and the lock pin is mounted to the lock notch to secure position of the sheet roll between the lock plate and the base plate.

An apparatus for securing a wrap or sheet roll is disclosed. The apparatus includes a cable in which a first end of the cable is mounted to a structure and a second end of the cable is mounted to a base plate. The apparatus further includes a lock notch provided at the cable. The apparatus has a lock pin removably mounted to the lock notch. The apparatus also has a lock plate mounted to the cable. The apparatus includes a sheet roll mounted to the cable as well. The sheet roll is mounted to the cable by drawing the base plate through an opening provided at the sheet roll. The lock plate is placed above the sheet roll and the lock pin is mounted to the lock notch to secure position of the sheet roll between the lock plate and the base plate.

A rolled sheet dispensing cabinet for storing and dispensing rolled sheets includes a housing having a top, a bottom, a front, a back, and opposing sides defining an internal space. Each of a plurality of rods is coupled to and extends between the opposing sides. Each of a plurality of slots is positioned in the front and extends from proximate to each opposing side. The slots are parallel to the top and the bottom. Each slot is positioned proximate to a respective rod. The rods are positioned in the internal space and are configured for insertion into tubular cores of rolled sheets. The slots are positioned in the front and are configured for insertion of leading edges of the rolled sheets. The leading edges protrude from the front of the housing and are configured for grasping by a hand of a user to extract a portion of the rolled sheet.

Method for the handling of parent reels in paper converting plants, comprising the following steps: (a) providing at least one platform with a base adapted to support a parent reel in a waiting station and at least one unwinder (S) adapted to receive said reel in an unwinding station where the parent reel is unwound; (b) positioning a parent reel (1) on the platform at the waiting station; (c) transporting the parent reel (1) along a predefined path from said platform to said unwinder (S) by means of a bridge crane (CP) equipped with movable arms (BC). The step (c) is preceded by a first step consisting in the temporary association of two pins (P) to the arms (BC) of the bridge crane (CP) and by a second step consisting in inserting the two pins (P) in two opposite bases of the parent reel (1) using the same arms (BC); and the step (c) involves the transport of the reel (1) along a path comprising at least one ascending or descending portion with the pins (P) thus inserted into the parent reel (1).