Device for sealing lids onto packages

Details Device for sealing lids onto packages Device for sealing lids onto packages

1999-09-16

2001-03-13

Vo, Peter (Department: 3721)

Package making

Closing packages and filled receptacles

Separate closure applying

C053S167000, C053S264000, C053S329000

Reexamination Certificate

active

06199347

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a device for sealing tops, in particular tops made from films coated with sealable material, onto the openings of packs arranged at a distance from each other and intermittently conveyed by first conveying means in a first direction of travel.
2. Description of Related Art
It is known to close cup-shaped packs with round aluminum tops after filling the packs by sealing the tops onto the upper rim of the cups. The round tops are stacked in storage columns, removed by suction devices and placed on tongs which are arranged in pairs opposite each other and convey the tops by relative movement of the tongs relative to each other in a transport direction which is perpendicular to the direction of travel of the packs. In particular when packaging foodstuffs and using a germ-free space, complicated tong-conveyance apparatuses in a long tunnel for sterilization are necessary, so that the entire device becomes complicated and accident-prone. In order to provide the known device with a somewhat acceptable capacity, numerous transport lines are provided for the tops, each of which has the complicated mechanism mentioned, so that the danger of mistakes occurring is considerable although capacity is only moderate.
BRIEF SUMMARY OF THE INVENTION
The object of the invention is to create a similar device with a greater capacity and to design it so that the device allows the tops to be delivered to the packs more easily in spite of the increased capacity.
This objective is achieved according to the invention in that:
a) transport means are provided in order to transport the tops in a row behind each other and transversely to the direction of travel of the packs intermittently over the openings of at least 3 packs situated in a row of sealing stations and spaced a machine pitch from each other;
b) the transport means have a belt, guided over drive rollers, to which the tops are detachably attached behind each other via holding bridges spaced a pitch belt from each other and which has positioning apparatuses; and
c) fixed measurement and display apparatuses are attached in front of and behind the row of sealing stations.
More particularly the invention comprises an apparatus for sealing tops onto openings of packs arranged at a distance (m) from each other. The apparatus comprises a first conveying means, e.g. a first conveyor, for intermittently conveying the packs in a first direction of travel through a row of at least three sealing stations spaced a machine pitch (m) from each other, and a transport means, e.g. a second conveyor, for transporting the tops in a row behind each other and transversely to the first direction of travel, intermittently over the openings of packs located in the row of sealing stations. The transport means comprises a tops belt guided over drive rollers to which the tops are detachably attached behind each other by means of holding bridges. The tops are spaced a belt pitch (t) from each other and the tops belt is provided with positioning apparatus for properly positioning the tops over the openings. Fixed measurement and display apparatuses are attached in front of and behind the row of sealing stations to provide data permitting a predetermined length of belt over the openings of the packs in the row of sealing stations so that the center of each top, on the belt over the openings, lies over the center of a pack opening.


REFERENCES:
patent: 4035987 (1977-07-01), Nakazato et al.
patent: 4155786 (1979-05-01), Corbic
patent: 4362002 (1982-12-01), Rowland et al.
patent: 4446673 (1984-05-01), Desthieux
patent: 5371996 (1994-12-01), Ueda et al.
patent: 5406772 (1995-04-01), Dinius

Affiliated with

Also associated with

Rating

Device for sealing lids onto packages does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for sealing lids onto packages, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for sealing lids onto packages will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2488424