The present disclosure relates to methods and apparatuses configured to bond elastic laminates together between a rotating drum and anvil. The drum includes a fluid nozzle and a press member. As such, a first elastic laminate and a second elastics laminate may be advanced in a machine direction onto the rotating drum. A fluid is heated to a temperature sufficient to partially melt substrate layers of the first and second elastic laminates. As the drum rotates, the press member shifts radially outward from the drum wherein a length, L, of the pattern surface extends in the cross direction across a plurality of elastic strands of first and/or second elastic laminates. And the partially melted portion of the substrate layers of the first and second elastic laminates and the plurality of elastic strands are then bonded together by being compressed between the pattern surface and the anvil roll.

There is described a forming assembly (10b) for forming a plurality of sealed packs (3) starting from a tube (2) of packaging material, comprising first conveying means (15b) movable along a first path (Q) comprising: a first operative branch (Q1), which has a main elongation direction parallel to an advancing direction (A) of the tube (2); and a first return branch (Q2) comprising an initial portion (35b) which is arranged immediately downstream of the operative branch (Q1) and extends transversally to the advancing direction (A); first conveying means (14b, 15b, 14b) comprise one of a sealing element (22b) or a counter-sealing element (22a); and a first half-shell (21b), which is movable along the operative branch (Q1) between: a first rest position, in which it is detached from the tube (2) or the formed pack (3); and a first operative position, in which it grips the tube (2) or the formed pack (3); the first half-shell (21b) is arranged in the first operative position along a first portion (34b) of the first operative branch (Q1); the first half-shell (21b) is kept in the first operative position along an initial portion (35b), so as to grip and convey the pack (3) in a staggered position with respect to the advancing direction (A); and moves, from the first operative position to the rest position at an end (36b) of the initial portion (35b) opposite to the first portion (34b), so as to discharge the pack (3) in a staggered position with respect to the advancing direction (A).

The present disclosure relates to methods and apparatuses configured to bond elastic laminates together between a rotating drum and anvil. The drum includes a fluid nozzle and a press member. As such, a first elastic laminate and a second elastics laminate may be advanced in a machine direction onto the rotating drum. A fluid is heated to a temperature sufficient to partially melt substrate layers of the first and second elastic laminates. As the drum rotates, the press member shifts radially outward from the drum wherein a length, L, of the pattern surface extends in the cross direction across a plurality of elastic strands of first and/or second elastic laminates. And the partially melted portion of the substrate layers of the first and second elastic laminates and the plurality of elastic strands are then bonded together by being compressed between the pattern surface and the anvil roll.

A joining/cutting unit (60) includes a drum (61) having a peripheral surface (61a) on which a sheet (W) is to be placed, joining mechanisms (601 to 603), a cutting mechanism (604) arranged downstream of the joining mechanism (603) in a rotating direction of the drum (61), claw members (607) vertically movably mounted on the peripheral surface (61a) of the drum (61) and a vertically moving cam mechanism (630) configured to vertically move the claw members (607). The vertically moving cam mechanism (630) includes a cam disc (635) having an eccentric cam groove (634) and cam followers (633) configured to be engaged with the eccentric cam groove (634) so that the claw members (607) vertically move according to the rotation of the drum (61). Further, the joining/cutting unit (60) further includes a phase adjusting mechanism (631) provided on the cam disc (635) and capable of adjusting a phase of the eccentric cam groove (634).

An integrated system for fusing and sealing of a plurality of tubes is disclosed. The integrated system includes one or more fusing units configured to cut one or more tubes of multiple tubes simultaneously, and fusing the one or more tubes together along their respective cut ends; one or more sealing units configured to seal an end of the tube of the multiple tubes; and a control unit for controlling functions of the one or more fusing units and the one or more sealing units.

An apparatus includes a drum that rotates about an axis and rotating an anvil roll that rotates about an axis of rotation. The drum includes a fluid nozzle and a press member, the press member having an outer surface. The anvil roll includes a compliant outer circumferential surface. First and second substrates are advanced in a machine direction onto the drum. The fluid nozzle moves radially outward and a jet of heated fluid may be directed onto the substrates. The fluid nozzle retracts radially inward and the press member may be shifted radially outward. The substrates may be compressed between the press member and the anvil roll such that the press member deforms the compliant outer circumferential surface of the anvil roll.

The ultrasonic welding device includes a rotary support mechanical assembly rotatable about a rotation axis and operable to support a sheet over a circumference centered on the rotation axis, the sheet being continuously supplied; and a horn and an anvil operable to sandwich the sheet supported over the rotary support mechanical assembly to thereby weld the sheet. The rotary support mechanical assembly includes a rotary member rotatable about the rotation axis, a plurality of sheet support members each having a support surface for supporting the sheet, and a mounting section for allowing the plurality of sheet support members to be attached to the rotary member in a state that the sheet support members lie on the same circumference about the rotation axis, and allowing attaching positions of the sheet support members to the rotary member to be adjusted in radial directions centered on the rotation axis.

A device for welding plastic tubes includes a pair of tube holders each of which has a tube clamp which includes an upper jaw and a lower jaw. The jaws in both of the tube clamps of both tube holders have smooth tube contacting walls to permit the tubing to slip through either side when the tube holders and tubes are being moved from a loading station to a stripping station to increase the length of fluid free area in the clamped tubes. A cutting/welding station provides for cutting the tubes and welding them together.

An ultrasonic welding device includes a rotary support mechanical assembly rotatable about a rotation axis and operable to support a sheet over a circumference centered on the rotation axis, the sheet being continuously supplied; a horn and an anvil attached to the rotary support mechanical assembly to thereby revolve about the rotation axis and sandwich the sheet supported over the rotary support mechanical assembly to weld the sheet; a cam drum and a cam follower for driving the anvil in such a manner that the anvil moves relative to the horn; a holding member body; and a power transmission mechanism for distributing a power generated by the cam and the cam follower in such a manner the power is transmitted to the anvil and holding member body in opposite directions.

A method includes rotating a drum about an axis and an anvil roll about an axis of rotation. The drum includes a fluid nozzle and a press member, the press member having an outer surface. The anvil roll includes a compliant outer circumferential surface. One or more substrates are advanced in a machine direction onto the drum. The fluid nozzle moves radially outward and a jet of heated fluid may be directed onto the substrates. The fluid nozzle retracts radially inward and the press member may be shifted radially outward. The substrates may be compressed between the press member and the anvil roll such that the press member deforms the compliant outer circumferential surface of the anvil roll.