GB699422A - Mechanism for wrapping caramels, pastilles and articles of similar shape - Google Patents

Abstract

699,422. Wrapping-machines. G. D. SOC. ANON. April 3, 1951 [April 8, 1950], No. 7675/51. Class 94(i) An article 1 to be wrapped is carried by a feeding disc 2 to a position above a lifter member 3, a wrapper 6 is fed thereover and the article and wrapper are lifted by the member 3 and a cooperating member 3<SP>1</SP> up between the opposed edges of curved plate members 9, 10 and between grippers 11, 12, the wrapper being folded into a U about the article, one arm 18 of the U being longer than the other arm 16. The grippers 11, 12, which are journaled in an oscillatable sleeve 41, are geared together by toothed sectors, Figs: 8, 9 (not shown) and are urged together by a spring and apart by a cam-actuated lever, then move together to hold the article and wrapper. The members 3, 3<SP>1</SP> are withdrawn and the plate 9 moved under the article to fold up the U arm 16 of the wrapper. The gripper sleeve 41 is then rotated so that the grippers 11, 12 carry the partly wrapped article over the stationary curved plate 10, thus folding up the long U arm 18 of the wrapper, to a second pair of grippers 22, 23 to which the partly wrapped article is transferred. The grippers 22, 23 are suitably opened and closed by cam and link means, Fig. 10, 11 (not shown) and are swung to move the article over an inclined part 25 of the plate 10 so as to fold up the trailing edge of U arm 18, and present it with the wrapper thus formed. into a tube about it to end-twisting means 26, 26a. Here grippers 33, 34, Fig. 7, close and grip the wrapper tube at the points where it is to be twisted and twister fingers 76, 77 close to grip the ends of the tube and then rotate to form bow twists, the twister fingers 76, 77 being simultaneously moved slightly inwards to compensate for the diminishing length of the paper tube while it is being twisted. After twisting the grippers are released and the completed package ejected. The twister fingers 76, 77 are pivotally carried by a rotatable sleeve 79 moved axially by cam means and are opened and closed by a rack 31 mounted for axial movement, by cam means, in the sleeve 79. A twist closure may be formed at one end only of the package only one pair of twister fingers being then provided and the closure of the other end being affected in the machine before the twisted end closure is formed.