Package making – Methods – With contents treating
Patent
1997-11-17
1999-11-09
Moon, Daniel B.
Package making
Methods
With contents treating
53436, 53450, 53553, 53526, 53528, 53529, 100151, 100178, B65B 6302
Patent
active
059791454
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to the techniques of compressing and packaging compressible materials such as, in particular, sets of mineral fibre panels.
2. Discussion of the Background
In order to transport and store at reduced cost products which are bulky but compressible and capable of recovering their volume and all their original characteristics after they have been released, it is necessary to provide suitably adapted techniques and machines. They should make it possible to obtain effective compression and quality packaging rapidly and automatically while preserving the characteristics of the products in question.
DESCRIPTION OF THE RELATED ART
U.S. Pat. No. 4,501,107 describes a machine intended to stack mineral wool mats then compress them to introduce them, in the compressed state, into a type of bag which constitutes the packaging of the product. They remain therein during transport and storage until they arrive on the work site where the mats are released by cutting the wrapping and return to their original thickness.
This document U.S. Pat. No. 4,501,107 provides automatic means for joining the mats in a stack, for compressing the stack then for introducing the compressed stack into a bag where it remains in the compressed state. The compression means is a plate placed on the top of the stack and driven in a downward vertical movement by virtue of a piston, whereas, for its part, the plate on which the stack rests is stationary.
The method described in this document is effective but has the drawback of any discontinuous method, namely that of the dead times which separate the end of one bagging operation from the start of the following operation. Furthermore, the compressed stack cannot be introduced into the bag without employing accessories (essentially two plates, below and above the stack) for maintaining the pressure during introduction, which accessories occupy non-negligible space in the package and which consequently allow a high degree of decompression when they are removed. Furthermore, since introduction into the bags takes place by backward pushing, there is friction on the edges of the compressed stack between the fixed metal plates and a risk of damage to the panels.
For its part, U.S. Pat. No. 3,717,973 describes a machine for continuously compressing volumes of compressible products, in particular rolls of mineral wool, in order to introduce them in parallelepipedal shape into a sheath of larger dimensions in which they remain in the compressed state (but to a lesser extent than when they were introduced). The device described includes, at the lower part, a substantially horizontal conveyor belt and, at the upper part, a synchronous conveyor which is in two successive plane parts, the first convergent relative to the lower belt and the second which is substantially parallel to it. At the exit of this second region, two new horizontal conveyor belts cause the product which they have kept compressed to penetrate into the package in the form of a sheath.
Although the compression operation is carried out continuously, end-of-line packaging is an operation which, for its part, is discontinuous and requires the intervention of an operator. Furthermore, as in the discontinuous method of U.S. Pat. No. 4,501,107, the highest degree of compression which was obtained at the end of the compression operation is not conserved in the package, because, in this case also, the conveyor belts which penetrated the sheath must be extracted therefrom at the end of the operation.
Document DE-A-26 01 590 describes a method for packaging elongated packets consisting, in particular, of rolls of fabric. The process is continuous; while the packets placed along a conveyor are moved by it, a packaging film whose width is such that it can surround the packet by itself is arranged above. The conveyor is in two parts, each supporting one side of the packet. A welding device is arranged between and below the two parts and makes it possible to form a sheath arou
REFERENCES:
patent: 1758970 (1930-05-01), Pohjonen
patent: 2567052 (1951-09-01), Carruthers
patent: 2913863 (1959-11-01), Sylvester et al.
patent: 2960023 (1960-11-01), Greiner et al.
patent: 2987987 (1961-06-01), Raney et al.
patent: 3132607 (1964-05-01), Hinckle
patent: 3138906 (1964-06-01), Anderson
patent: 3291678 (1966-12-01), Enloe et al.
patent: 3323273 (1967-06-01), Lee et al.
patent: 3645198 (1972-02-01), Field
patent: 3676265 (1972-07-01), Edwards
patent: 3710536 (1973-01-01), Lee et al.
patent: 3717973 (1973-02-01), Brady
patent: 3723230 (1973-03-01), Troutner
patent: 3837138 (1974-09-01), Terry
patent: 3878027 (1975-04-01), Troutner
patent: 3883284 (1975-05-01), De Mets
patent: 3883285 (1975-05-01), De Mets
patent: 3907473 (1975-09-01), De Mets
patent: 3932983 (1976-01-01), Hughes
patent: 4101370 (1978-07-01), Russell
patent: 4377061 (1983-03-01), Olson et al.
patent: 4688372 (1987-08-01), Langen et al.
patent: 4762061 (1988-08-01), Watanabe et al.
patent: 4909388 (1990-03-01), Watanabe
patent: 5421951 (1995-06-01), Troutner et al.
patent: 5425512 (1995-06-01), Bichot et al.
patent: 5501064 (1996-03-01), Ingram et al.
Bichot Bernard
Louis Bernard
Isover Saint-Gobain
Moon Daniel B.
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