Ultrasonic welding device
AssigneeSonimat
InventorsLionel Beauvy, Eric Violleau
Life of this patent
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Abstract
Device (10) for ultrasonic welding of a flexible, notably tubular, structure (F), to be conformed into sachets, this device including at least two airgaps each defined between a sonotrode (20) and an anvil (30,40) carried by respective support structures (28,54) the distance between which varies between a close together welding position and a spaced apart flexible structure movement position, in which airgaps the flexible structure to be welded is intended to be received to produce at least two weld lines, wherein for each airgap an anvil and/or a sonotrode both associated with this airgap is at least partially mobile relative to a support structure (54) of this anvil or sonotrode.
Claims21
Device for ultrasonic welding of a flexible structure, to be conformed into sachets, this device including at least two airgaps each defined between a sonotrode and an anvil carried by respective support structures the distance between which varies between a close together welding position and a spaced apart flexible structure movement position, in which airgaps the flexible structure to be welded is intended to be received to produce at least two weld lines, wherein for each airgap an anvil and/or a sonotrode both associated with this airgap is at least partially mobile relative to a support structure of this anvil or sonotrode, the two anvils being movable independently of each other.
Device for ultrasonic welding of a flexible structure, including:
- a sonotrode,
- two anvils carried by a support structure, this support structure being mobile relative to the sonotrode between a spaced-apart position and a close-together position, at least each one of the anvils being mobile relative to the support structure and caused to move relative to the latter by a thrust exerted by the sonotrode when the support structure is in the close-together position, and each anvil is movable relative to the support structure by said thrust, the movement of the anvil(s) relative to the support structure occurring against the return action of at least one elastic return member, each anvil having one degree of freedom of movement in translation and one degree of freedom of movement in rotation, the two anvils being movable independently of each other.
Dependencies are inferred from the claim text.