Package making – Methods – With contents treating
Patent
1988-03-24
1989-06-20
Bray, W. Donald
Package making
Methods
With contents treating
53447, 53461, 144 3R, 144 3E, 144134R, 144134E, 144242D, 144242E, 144242M, 144245R, 144192, 144367, 144368, A01C 1504, B27C 900, A47J 4902
Patent
active
048400157
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The invention relates to a method of continuously processing and packing elongated articles such as coherent pairs of chopsticks, the outer shape of which is defined by two mutually parallel surfaces and two opposing surfaces inclining towards one another by the same inclination relative to a common plane of symmetry. The invention further relates to an apparatus for carrying out the method.
BACKGROUND ART
Every day large amounts of wooden disposable chopsticks are used all over the world. Some of these disposable chopsticks are manufactured in coherent or interconnected pairs, said coherence only extending along a short portion of abutting surfaces. When the chopsticks are to be used the coherent portion is forced apart. Such chopsticks are cut by means of generally known machinery in such a manner that they are formed as elongated articles, the outer shape of which is defined by two mutually parallel surfaces and two opposing surfaces. The latter two opposing surfaces are inclined towards one another by the same inclination relative to a common plane of symmetry. The articles are cut through in said plane of symmetry, leaving a short uncut portion at the thickest end. The finishing of these articles so as to make them ready for use with bevelled edges is difficult and time-consuming. In addition, the bundling of the finished pairs of chopsticks so as to prepare them for dispatch is time-consuming.
DESCRIPTION OF THE INVENTION
The object of the invention is to provide a method and an apparatus to allow a continuous and consequently quick and inexpensive processing and packing of the articles.
The method according to the invention is characterised in that the articles are continuously advanced in the longitudinal direction in a track and are aligned centrally in the track during further advancement while they pass one or more processing implements by means of uniform centering rolls operating from the respective sides of said plane of symmetry of the articles. The centering rolls are biased by a uniform spring tension, and the articles are subsequently advanced continuously in the transverse direction and situated in layers in a bundle of articles, said bundle subsequently being wrapped in a sheet material.
In this manner quick and efficient processing, bundling, and packing of the articles are achieved in a continuous manner, which is further enhanced due to the fact that the processing implements can be used during advancement of the articles. To advance the articles are aligned relative to the processing implements by means of the centering rolls. The continuous bundling of the gradually finished articles is an important step of the quick completion of packed bundles of articles, whereas the actual wrapping of the bundles of articles in a sheet material is performed by means of known equipment.
An apparatus for carrying out the method according to the invention is characterised in that it comprises a longitudinal, substantially horizontal track guiding the articles during their continuous passage through the apparatus, the plane of symmetry of said articles being situated along the vertical central plane of the track, conveyor means are used to advance the articles through the track, and implements would process the articles during their passage along the track. The apparatus futher comprises uniform centering rolls operating from their respective sides of the track and towards the center thereof, said centering rolls being biased by a uniform spring tension and engaging the articles so as to align them during the processing procedure by means of the implements. The apparatus also comprises, stopping means stopping the advancement of the articles and transferring them to transverse conveyor means, transferring means transferring the articles from the transverse conveyor means to a bundling device, and further conveyor means carrying bundles of articles to a wrapping device wrapping said bundles in sheet material. The resulting apparatus allows both quick and continuous processing
REFERENCES:
patent: 1985462 (1934-12-01), Schapiro
Bray W. Donald
Stormax International A/S
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