Apparatus for, and method of, forming, filling and closing bags, each with a pouring device

Abstract

The invention relates to a device (10) for forming, filling and closing bags provided with respectively one pouring device, comprising a device (23) for forming a tube (25) from at least one material web (12), a filling device (28) for filling the tube (25) and / or the bags (5) and a cross-seam sealing and separating device (33) for separating respectively one bag (5) from the tube (5). According to the invention, said device (23) for forming the tube (25) comprises a forming device (24) which forms the tube (25) from one single material web (12) and the filling device (28) fills the tube (25) with the filling material over the entire cross-section of the tube (25) and one outer part (4) of the of the pouring device (1) is joined to the material web (12) after forming the tube (25).

Description

BACKGROUND OF THE INVENTION[0001]The invention relates to an apparatus for forming, filling and closing bags, each with a pouring device.[0002]An apparatus is already known from U.S. Pat. No. 7,469,522 B2. In the case of the known apparatus, two flexible material webs are conveyed independently of one another and formed into bags using a flexible-tube-forming device. In this case, pouring devices are connected to one of the material webs beforehand using an applicator, wherein corresponding holes are formed prior to this in the material web. Once the bags have been fully formed, this also including closure of the bags in the head region thereof, the bags are then filled in a filling device, by the caps being unscrewed from the pouring devices and the bags being filled through the pouring devices.[0003]The known apparatus, as a result of using two material webs which have to be welded by means of two longitudinal seams, involves the potential risk of the sealing in the region of the ...

AI Technical Summary

Benefits of technology

The invention is a device for forming, filling, and closing bags with a pouring device. The device includes a shaping device that forms a flexible tube from a single material web, reducing the number of seams on the bags and allowing for faster filling. The shaping device is designed as a forming shoulder, and a filling tube is arranged within the forming shoulder to facilitate fast filling. A second application device is provided to fasten the outer part of the pouring device to the material web. The material web is sterilized by a sterilizing device that encloses the region of the shaping device to ensure good sealing. The invention also includes a method of forming, filling, and closing bags using the device. The technical effects of the invention include improved sealing, faster filling, and better sterilization of the material web.

Problems solved by technology

The known apparatus, as a result of using two material webs which have to be welded by means of two longitudinal seams, involves the potential risk of the sealing in the region of the longitudinal seams not being tight.

It should also be considered disadvantageous that the operation of filling the previously fully formed bags, provided with transverse seams, through the pouring devices means that this operation of filling the bags takes a relatively long period of time, since the filling cross section which is possible for the purpose of filling the bag is defined or limited by the size of the pouring device.

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