US 6,629,400 B1 · Method and apparatus for sealing packages

Abstract

An apparatus and method is disclosed for sealing in a single package bundles of product cartons which are conveyed in series along a moving conveyor belt. A stationary frame is aligned with the conveyor, and a movable carriage assembly is connected to the frame. Packages or cartons of product are stacked and bundled by film, such as thermoplastic film, in a series of sealing steps. The apparatus includes at least one motor mounted on the stationary frame and capable of engaging the carriage assembly to facilitate reciprocating movement of the carriage assembly in relation to the moving packages. A separate computer controlled servo motor drives the opening and closing of seal bars on the carriage assembly to seal the film at each end of the package.

Claims8

Dependent claims

An apparatus for sealing bundles of packages conveyed in series along a conveyor line, comprising:

(a) a stationary frame aligned with a conveyor line,
(b) a movable carriage assembly connected to the stationary frame, the carriage assembly being capable of reciprocating along the length of the conveyor line, the carriage assembly further comprising upper and lower seal bars, wherein the seal bars move in close proximity to each other to form a seal nip in sealing bundles, and
(c) a first motor means, the first motor means being mounted on the stationary frame and capable of generating electrical signals that control the carriage assembly to facilitate reciprocating movement of the carriage assembly;
and
(d) a second motor mounted upon the stationary frame, the second motor being adapted to drive the upper and lower seal bars in relation to one another to open and close the nip.

2 more elements

Dependencies are inferred from the claim text.

Method and apparatus for sealing packages

Life of this patent

Method and apparatus for sealing packages

Life of this patent

Abstract

Claims8