Pedestal-Mounted Ultrasonic Welding Device

摘要

The sonotrode and anvil of co-pending application Ser. No. 12/925,652, for advanced ultrasonic welding of work pieces, are readily incorporated into new form-fill-seal machines, but existing machines with heat-seal stations pose difficult problems for swapping of the sealing packages. Kits enabling heat station replacement, with the further improved sonotrode and anvil disclosed herein, comprise: a housing; a linear rail fixed thereto; anvil and sonotrode support members; and a parallel gripper. Each of the anvil and sonotrode support members is slidably attached to the rail(s) and are also connected to a respective piston of the gripper, permitting actuation of each through cycling of the gripper pistons. The improved sonotrode/anvil combination each comprise a corresponding plurality of energy directors arranged into a three-dimensional grid pattern to produce a narrower weld region, but one exhibiting greater durability; thereby permitting use of less packaging material, and which may also weld a company logo into the workpieces.

主权项

1. An ultrasonic welding device, for use at a sealing station of a form-fill-seal machine or a pre-made pouch machine, said ultrasonic welding device comprising:
a housing; a parallel gripper fixedly secured to a portion of said housing; a linear rail fixedly secured to a portion of said housing; an anvil support member, said anvil support member slidably received upon a portion of said linear rail, said anvil support member configured to be connected to a first piston of said parallel gripper; said anvil support member configured to secure an anvil thereto; a sonotrode support member, said sonotrode support member configured to slide relative to said linear rail, said sonotrode support member configured to be connected to a second piston of said parallel gripper; said sonotrode support member configured to secure a sonotrode thereto; wherein said first and second pistons of said parallel gripper are configured to cause respective translation of said anvil support member and said sonotrode support member, relative to said housing, from a first respective position to a second respective position, said respective translation of said anvil support member and said sonotrode support member to said second respective positions comprising convergent translation.