摘要:
To provide an ultrasonic welding device capable of allowing adjustment for changing the space between adjacent welding positions. The ultrasonic welding device (1) includes a rotary support mechanical assembly rotatable about a rotation axis (L1) and operable to support a sheet (W) over a circumference centered on the rotation axis (L1), the sheet (W) being continuously supplied; and a horn (14) and an anvil (15) operable to sandwich the sheet (W) supported over the rotary support mechanical assembly to thereby weld the sheet (W). The rotary support mechanical assembly includes a rotary member rotatable about the rotation axis (L1), a plurality of sheet support members (44) each having a support surface for supporting the sheet (W), and a mounting section (18) for allowing the plurality of sheet support members (44) to be attached to the rotary member in a state that the sheet support members (44) lie on the same circumference about the rotation axis (L1), and allowing attaching positions of the sheet support members (44) to the rotary member to be adjusted in radial directions centered on the rotation axis (L1).
摘要:
Provided is a lightweight anvil roller and an ultrasonic welding device provided therewith. The anvil roller (10) has: a supported section (19) that is rotatably supported by a holding mechanism (11) via a rotary shaft (12a) in such a manner that the anvil roller (10) can come into rolling contact with a sheet (W); an outer peripheral section (18) having a welding surface over which the sheet (W) is welded between the outer peripheral section (18) and an ultrasonic horn (6) during rolling contact with the sheet (W); a thin section (21) that is formed between the supported section (19) and the outer peripheral section (18) in such a manner that the thickness of the thin section (21) is smaller than the thickness of the outer peripheral section (18) in the axial direction of the rotary shaft (12a); and a vibrationproof member (22) provided on the thin section (21).
摘要:
To provide an ultrasonic welding device capable of reducing vibration and noise caused by movement of an anvil. The ultrasonic welding device (1) includes a rotary support mechanical assembly rotatable about a rotation axis (L1) and operable to support a sheet (W) over a circumference centered on the rotation axis (L1), the sheet (W) being continuously supplied; a horn (14) and an anvil (15) attached to the rotary support mechanical assembly to thereby revolve about the rotation axis (L1) and sandwich the sheet (W) supported over the rotary support mechanical assembly to weld the sheet (W); a cam drum (3) and a cam follower (23) for driving the anvil (15) in such a manner that the anvil (15) moves relative to the horn (14); a holding member body (24a); and a power transmission mechanism (7) for distributing a power generated by the cam (3) and the cam follower (23) in such a manner the power is transmitted the anvil (15) and holding member body (24a) in opposite directions.
摘要:
Using a conveyance roller (210) having an outer peripheral surface which is capable of conveying two sheets (2a, 2b) with an elastic element (10) sandwiched therebetween, in a longitudinal direction of the sheets (2a, 2b), and formed with a convex section (212); and a clamping and pressing device (220), the sheets (2a, 2b) with the elastic element (10) sandwiched therebetween are ultrasonic-welded together under pressing. The convex section (212) is formed in a shape extending along a line intersecting a conveyance direction of the conveyance roller (210), and the convex section (212) is provided with a plurality of grooves at positions spaced apart from each other in a longitudinal direction thereof, wherein each of the grooves extends in the conveyance direction of the conveyance roller (210) to allow a portion of the sheets (2a, 2b) on which the elastic element is disposed, to be inserted therein.
摘要:
Providing two sheets (2a, 2b) which are opposed to each other, and a plurality of elastic elements (10) each disposed between the sheets (2a, 2b) to extend along a stretchable direction of a composite stretchable member (1) in such a manner as to be stretchable in the stretchable direction, wherein: the sheets (2a, 2b) are bonded together in a plurality of bonding sections (4), wherein each of the bonding sections (4) is configured to continuously extend along a line intersecting the stretchable direction and to intersect the plurality of elastic elements (10); and each of the elastic elements (10) is bonded to the sheets (2a, 2b) at intersection points with the bonding sections (4).
摘要:
Provided is an ultrasonic welding device that allows simplifying the configuration and control for causing an ultrasonic horn and an anvil approach each other and move away from each other. The displacement mechanism includes: an urging mechanism that urges an anvil roller (10) toward an ultrasonic horn (6) in such a manner that output surfaces (6e) and a welding surface (10d) move closer in the normal direction thereof; and a pressed member (18) that has guide surfaces (21a, 23a) against which the outer surface of the anvil roller (10), positioned within non-welding areas (E2, E4), are pressed by an urging force of the urging mechanism, the pressed member (18) being fixed to a sheet holding roller (5) in a state where a pressed surface (21a) is disposed within the width-direction range of a slit (6d). In response to the movement of the anvil roller (10) from a welding area (E3) to the non-welding areas (E2, E4), the guide surfaces (21a, 23a) of the pressed member (18) guide the anvil roller (10) in a direction in which the output surfaces (6e) and the welding surface (10d) move away from each other.