GB414422A - Improvements in or relating to wrapping machines - Google Patents

Abstract

414,422. Wrapping-machines. PARRY, F., and MOLINS MACHINE CO., Ltd., 2, Evelyn Street, Deptford, London. Feb. 9, 1933, No. 3977. [Class 94 (i).] The machine assembles a number of articles into a composite batch and wraps them in a single wrapper, or wraps single articles. As shown, twenty-four articles are assembled into two columns each containing three rows of four articles to form a rectangular assembly. The articles 1, Fig. 1, are delivered from two parallel channels 2, of which one is shown, on to plates 3. A plunger 4 pushes the articles on to tables 8 until two rows of four articles each are in position, whereupon the tables are lifted by rods 9 to raise the articles to the level of an assembling table 13, Fig. 4. Catches 14 support the articles when the tables 8 fall again and three rows are superimposed at each side of the machine. The catches are moved out of the path of a row of ascending articles by cams 15. Plungers 18 approach and form the two batches into a single assembly C on the table 13. A plunger 21, Fig. 1, feeds the assembly, which now acts as a single rectangular body, to the right, carrying with it a wrapper cut from a web 22, to which adhesive has been applied if desired by a roll 24. The wrapper is steadied in position by guides 123 which move laterally out of the way when the plunger 21 makes its working stroke. The wrapper is folded on to the top and bottom of the assembly by rollers 26, and the rest of the folds, with the possible exception of the first tucks 28, Fig. 12, are made while the assembly is stationary on a plate 27. The first tucks are made by folders operated by cams 30 to move inwardly to meet the oncoming article and then to move with it to the stationary position and to remain in position while the next fold is made. Alternatively, the folders may move after the article has reached the stationary position. The lower side folds 33<a> are next turned upwards by folders 34, Fig. 1, which remain in position until the upper folds 37 have been turned down by folders 38. The end folds 41, Fig. 12, are made by folders 42 and the bottom and top folds in succession by folders 46, 50. All the folders are controlled by springs and the article is held firmly on the table 27 by a brush 55. The package is pushed by the next succeeding batch into a collector 53 which may have heaters 54 to dry the adhesive. When single articles are to be wrapped, they may be fed from one channel to the wrapping position, or alternately from two channels.