Manufacturing container or tube from paper; or other manufacturi – Bending – Folding
Patent
1991-11-19
1993-05-18
Terrell, William E.
Manufacturing container or tube from paper; or other manufacturi
Bending
Folding
493423, B65H 45103
Patent
active
052116212
DESCRIPTION:
BRIEF SUMMARY
The invention pertains to the technical field of machines and materials for the packaging of flexible tapes made of textile material such as ribbons and similar products.
It is first of all stated that textile tapes and ribbons are packaged in packing material and presented with a zigzag alternation.
In order to accomplish this, a device is provided which comprises an entablature with a rear zone receiving means for the distribution of the fabricated tape, a central zone equipped with a transverse slot allowing the alternating displacement of a pair of rollers between which is guided the tape, the rollers being mounted on a carriage driven by control means in an alternating transverse movement in relation to the aforementioned slot and allowing at the outlet of the rollers the folding of the tape, with the aforementioned entablature having a front zone allowing the reception and discharge of the parts of the continuous folded tape and their discharge to the packaging zone. There are also provided means for the advancement of the folded tape or ribbon parts.
In a specific implementation, the applicant for the present patent proposed an improved device comprising two specific features defined in French Patent No. 88.12709.
The first specific feature is comprised of making each of the rollers alternatively positive with respect to the direction of tape advance irrespective of the direction of displacement of the carriage. For this purpose, the rollers are driven by free wheels mounted in opposition.
The second specific feature is comprised of acting by means against the strands of the part of the tape in relation to the outlet of the pair of rollers by assuring an alternating application and release of pressure of each of the half-parts of the tapes that has been executed so as to maintain the parts of the folded tapes in the vertical position. The aforementioned means are of the belt type.
In the context of exploiting the aforementioned patent which was completely satisfactory for the majority of tapes and ribbons processed, it was found that certain types of ribbons had a tendency to unfold. This problem occurred with ribbons with a certain "nervousness", i.e., a tendency to slacken and thereby constitute an impedimentation of packing. Thus, it was necessary to improve the device so as to make it capable of handling this problem.
In addition, in the state of conception of the rollers, the devices employed exhibited certain limits under the conditions of processing tapes or ribbons with a limited width.
Thus, a first goal of the invention was to improve the existing devices so as to allow quick adjustment of the rollers irrespective of the width dimensions of the tapes or ribbons.
Another goal of the invention was to be able to employ the device for the zigzag folding of tapes or ribbons irrespective of their composition or application.
Another goal of the invention was to improve the existing devices by the use of supplementary modular means that could be assembled and disassembled quickly with a very large capacity of adjustment in fulfilling the performance conditions for tapes or ribbons so as to achieve perfect packaging.
These goals as well as other goals will become evident from the description below.
In accordance with a first characteristic, the device is noteworthy in that it comprises an entablature with a rear zone and means for distribution of the fabricated tape, a central zone fitted with a transverse slot allowing the alternating movement of a pair of rollers between which is guided the tape, the said rollers being mounted on a carriage driven by control means in an alternating transverse movement in relation to the aforementioned slot and thereby allowing the discharge from the rollers of the fold of a ribbon, and a front zone allowing the reception and discharge of the parts of the continuously folded ribbon and their discharge towards the packaging zone, with this device also having means for advancing the folded ribbon parts in the form of belts; with the device being characterized in tha
REFERENCES:
patent: 4493689 (1985-01-01), Affupper
patent: 4670001 (1987-06-01), Campbell et al.
ETS J. Cheynet et Ses Fils
Terrell William E.
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