DE2400153A1 - Double-sack filling machine - has lifting mechanism for outer sack and spreader and coaxial filling spout - Google Patents

Abstract

A spreader mechanism accommodates the outer sack, and a lifting mechanism at the side raises both. A filling spout is mounting coaxially above the outer sack, and is equipped with clamping jaws to hold the valved inner sack. A stir-up-type support is mounted parallel to the wide side of the spreader mechanism, for the unfilled inner sack. The outer sack is lifted up until it surrounds the inner sack, and a roller device may be used to guide the inner sack into the outer sack. When the inner sack is in position inside the outer sack then the filling mechanism is actuated.

Description

Device for filling double sacks The invention relates to a Device for filling double sacks in one continuous operation.

For the bagging of filling goods onto filling - devices are i.a.

Säc, ce are used, which consist of an inner and outer bag. the Sacks are made of different materials, i.e. the inner sack is mainly made of plastic, e.g. polyethylene, the outer bag made of jute or the like.

It is already known to use a valve inner bag during assembly of the outer bag and fed as a unit to the filling device. the As can easily be seen, this double-bag unit is very expensive to manufacture and requires great care when dividing the bag, since the outer bag is only inserted after it has been inserted the inner sack can be sewn and the inner sack if the execution is not precise after filling by sliding back and forth, n can be torn.

Furthermore there is already a device for filling doubles Sacks known, the spatially separated from the outer sack during the pilil process Inner bag is combined with the outer bag to form a unit. The two open Sacks are first attached one on top of the other so that they are coaxial with one another, as well in lie on the same level as the hopper. The slides during the filling process Inner bag due to the weight of the grooves in the outer bag.

The disadvantage of this device is that the inner bag is open during After filling, there is no support from the outer bag, the inner bag nsb * ondere Irei hangs on the outside and can easily be torn off. In addition, following the Filling of the inner bag can be closed separately next to the outer bag.

There has now been a device for filling double bags in one operation developed, which does not have the disadvantages mentioned and an extremely economical one Operation started.

The invention relates to a device for filling roofs Double sacks, consisting of a spreading device (i) for receiving the outer sack (2), a laterally attached lifting device (3) for lifting the spreading device with the Aunensack, a filler neck attached coaxially above the outer sack (5), which is provided with the clamping jaws (6) for holding the valve inner bag (4) is, as well as a bracket-like arranged parallel to the erect side of the spreading device Support device (7) for the unfilled inner valve bag.

In an advantageous manner, this device is used during the filling process the inner bag, which consists in particular of plastic such as polyethylene, by automatic Raising of the outer sack made of jute or woven fabric. By this measure The inner sack does not have to be a load-bearing element, but must be the filling material for the later Transport and storage only protect against moisture and can therefore be from thin-walled and thus cheaper film can be produced.

Description of the device (Figures 1-4) and procedure: The outer bag (2) is first on the lowered, still folded expanding jaws the spray device (1) inserted.

After attaching the outer bag, the spreading balls press down outside, open the outer bag and hold it tight at the same time. The support device (7) and the expanding jaws with the attached outer bag are tilted downwards. Then the inner bag (4) with the valve is pushed onto the filler neck (5) and held there by the clamping jaws (6) (Pigur 1). With the shearing process of the Jaws are tilting the support device (7) and the spreading device (1) initiated upwards (Figure 2). This tilting process triggers the scale the inflowing granulate becomes the inner sack over the support device into the outer sack pulled (Figure 3). A short time, about a few seconds after the start of the filling process the lifting process of the. Spreading jaws (with the hanging outer sack) initiated, and thus the one that was initially hanging freely in the outer bag and was only burdened with a partial weight Inner bag gradually supported by the rising outer bag (Figure 4).

When the filling process is finished, they are released automatically at the same time the expanding jaws and the clamping jaws of the double bag falls onto the conveyor belt and is transported to the sewing station. Because the inner bag works automatically through the valve is closed, only the outer bag had to be sewn shut.

In a manner known per se, the device described can be used in two ways Version can be mounted on swivel arms, i.e.

during the filling process on one unit, the second Unit of inner and outer bag attached.

Claims (1)

P a t e n t a n s p r u (- ii Device for filling double sacs, consisting of a spreading device (i) for receiving the outer bag (2), a laterally attached lifting device (3) to raise the spreader with the outer bag, one coaxially above The filler neck (5) attached to the outer bag, the one with the clamping jaws (6) for the holder of the valve inner bag (4) is provided, as well as one parallel to the broad side of the Spreader arranged bow-like support device (7) for the unfilled Inner valve bag.