The invention relates to a device for changing a reel and for connecting a new material web to the end of an old material web, with a first reel (101) from which the first material web thereof which is wound thereon can be unwound, a transport device (103), particularly a transport roller, by means of which the first material web can be guided in a guiding region at a transport speed, a second reel (121) with which the new material web can be prepared, a drive device for rotatably driving the second reel, a separating device (142) for cutting through the first material web, by means of which the material web can be cut through in the guiding region or upstream of the guiding region in order to produce a trailing end, and a control and/or regulating device for the mutual adjustment of the trailing end and the beginning (125) of the second material web, such that the trailing end and the beginning of the web are at a distance of more than 0 mm from each other and particularly do not overlap. The trailing end and the beginning of the new material web can be connected to each other in the guiding region of the transport device by means of a connection element, and the transport speed of the trailing end and the beginning of the web corresponds to more than 0 meter per minute in the guiding region.

The feeding unit (10) comprises: support means (12) for rotatably supporting a first reel (R1) of two-layer tissue web and a second reel (R2) of two-layer tissue web about respective axes of rotation (x1, x2); cutting means (32, 42) for cutting the two layers (L1_1, L2_1) of the tissue web (W1) of the reel (R1) in use, the cutting means (32, 42) being configured to cut the two layers (L1_1, L2_1) of the tissue web (W1) along two cut lines spaced apart from each other in the longitudinal direction of the web (W1); joining means (44_1, 44_2) for joining each of the two layers (L1_2, L2_2) of the tissue web (W2) of the other reel (R2) of said first and second reels (R1, R2), and precisely of the new reel, to a respective layer (L1_1, L2_1) of the tissue web (W1) of the reel (R1) in use; and tissue web accumulation means (30) for accumulating a given amount of web (W1) downstream of the cutting means (32, 42) and the joining means (44_1, 44_2) so as to ensure the feeding of the machine with the tissue web (W1) while the portion of tissue web (W1) on which the cutting means (32, 42) and the joining means (44_1, 44_2) act is kept temporarily still to allow the cutting of the two layers (L1_1, L2_1) of the tissue web (W1) in use and the joining of the latter with the two layers (L2_2, L2_2) of the new tissue web (W2).

An arm for an unwinder for unwinding rolls is disclosed. The arm includes an axial engaging member for engaging the rolls. The axial engaging member has a shaft supported by at least two support bearings mounted on the arm, so as to rotate around a rotation axis. A brake is also provided, adapted to act on the shaft. The brake is at least partially arranged between the two support bearings.

A sheet-feeding system includes a holding part which holds an end portion of a sheet, a nozzle part for discharging an adhesive agent for joining sheets to each other, and a nozzle moving unit which supports the nozzle part such that the nozzle part is made movable within a region including both temporarily holding parts, in which when a sheet joining condition is established where a remaining amount of the sheet on one original sheet roll becomes equal to or below a predetermined remaining amount, an end portion of the sheet on the other original sheet roll is conveyed to the temporarily holding part by the holding part and, thereafter, the nozzle part is moved to the temporarily holding part, and the adhesive agent is discharged to the end portion of the sheet from the nozzle part.

A sheet-feeding system includes a holding part which holds an end portion of a sheet, a nozzle part for discharging an adhesive agent for joining sheets to each other, and a nozzle moving unit which supports the nozzle part such that the nozzle part is made movable within a region including both temporarily holding parts, in which when a sheet joining condition is established where a remaining amount of the sheet on one original sheet roll becomes equal to or below a predetermined remaining amount, an end portion of the sheet on the other original sheet roll is conveyed to the temporarily holding part by the holding part and, thereafter, the nozzle part is moved to the temporarily holding part, and the adhesive agent is discharged to the end portion of the sheet from the nozzle part.

A controller includes a shaft control unit that controls driving of a shaft drive source such that a standby side roll is rotated, and a unit control unit that presses a pressing roller against an outer peripheral surface of the standby side roll via a sheet of a supply side roll by performing torque control on a unit drive source in a state in which the pressing roller is positioned in an area from a control switching position to the outer peripheral surface of the standby side roll together with performing position control on the unit drive source in a state in which the pressing roller is positioned in an area farther away from the standby side roll than the control switching position away from the outer peripheral surface of the standby side roll by a preset distance while the standby side roll is rotated by the shaft control unit.

A carrier tape holding device is installed in a component supply unit that supplies a component by drawing a carrier tape storing the component from a tape roll body formed by winding the carrier tape in a roll shape. The carrier tape holding device includes a storage portion that stores the tape roll body. The storage portion holds the tape roll body in a state where the component supply unit is able to draw the carrier tape from the tape roll body, and is capable of receiving a tape roll body for replenishment moved from a holder storing the tape roll body for replenishment in a state where the holder is detachably attached.

A carrier tape holding device is installed in a component supply unit that supplies a component by drawing a carrier tape storing the component from a tape roll body formed by winding the carrier tape in a roll shape. The carrier tape holding device includes a storage portion that stores the tape roll body. The storage portion holds the tape roll body in a state where the component supply unit is able to draw the carrier tape from the tape roll body, and is capable of receiving a tape roll body for replenishment moved from a holder storing the tape roll body for replenishment in a state where the holder is detachably attached.

The present invention includes a first weight scale that senses first information necessary when acquiring the residual amount of a first composite material sheet wound on a first support rod; a second weight scale that senses second information necessary when acquiring the residual amount of a second composite material sheet wound on a second support rod; a first cutting part for cutting the first composite material sheet; a second cutting part for cutting the second composite material sheet; a pressure-bonding mechanism that pressure-bonds the first composite material sheet and the second composite material sheet; and a control device that controls the first cutting part, the second cutting part, and the pressure-bonding mechanism.

An apparatus for splicing comprises a first web support surface configured to support a traveling web thereon and a second web support surface configured to support a replacement web thereon. The first traveling web travels in a machine direction. The splicing assembly also comprises a first web sensor and a web joiner. A controller is configured to determine, via the first web sensor, a position of a trailing end of the traveling web and to, in response to determining the position of the trailing end, cause a leading end of the replacement web to be positioned adjacently to the trailing end. The computer is also configured to control the web joiner to create a joint coupling the trailing end to the leading end.