Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container
Patent
1986-06-05
1987-09-08
Schmidt, Frederick R.
Manufacturing container or tube from paper; or other manufacturi
Container making
Pliable container
493204, B31B 198, B31B 2386
Patent
active
046921346
ABSTRACT:
A machine for making a unitized stack of vest type bags from a tubular plastic web comprising, essentially, a horizontal frame (1) adjoining at one end a unit for unwinding the plastic film (2) in an intermediate portion supporting transversal rollers (3) and a cutter unit (4), the former for pulling the film (2) and the latter for cutting out the straps of the bags. At the opposite extremity of the frame (1) there is provided a sealing and cutter unit (5) at the outlet of which there is disposed a bundling and ejector unit (6) to accomplish the bundling of various bags for forming and ejecting blocks of bags. The bundling and ejector unit (6) has a sealing table (7) interposed between a tilting vane (8) and a tilting table (9). Sealing electrodes in the shape of pins (12) perform the sealing of various bags making up a block and alongside of which are needles (13) to stabilize the bags on the table (7). Both the sealing electrodes ( 12) and the needles (13) are seated on a support (14) capable of moving upwards or downwards. A corresponding depressing bar (15) is formed by a length of stock with a rectangular section with the surface thereof facing table (7). The depressing bar (15) is movable upwardly or downwardly to urge the plastic film (2) against the sealing electrodes (12) and stabilizing needles (13) and upon which a duct (18) is seated with various air-emitting nozzles (19) being turned toward the tilting vane (8) and which act in cooperation with the latter.
REFERENCES:
patent: 3813998 (1974-06-01), Lotto
patent: 4386924 (1983-06-01), Crawford et al.
patent: 4487599 (1984-12-01), Bendig et al.
patent: 4526639 (1985-07-01), Reimann
patent: 4604084 (1986-08-01), Pistner
Maquinas Npu Ltda.
Schmidt Frederick R.
Terrell William E.
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