GB277023A - A process and a machine for wrapping and tying up cylindrical articles having an axial extension of reduced cross-sectional area - Google Patents

Abstract

277,023. Schweizerische Industrie Ges., and Leclanche Soc. Anon. Sept. 3, 1926, [Convention date]. Electrodes. - Relates to a machine for wrapping and tying-up cylindrical and like articles, for example, carbon elements for dry batteries of cylindrical shape with a cylindrical extension at one end. The articles are fed to position I, Figs. 1 and 8, by an endless band 1, and are displaced laterally, one at a time, into position over a slide 4. Fabric is drawn from a supply and a piece B cut off to form a wrapper and positioned over the articles. A slide 4<1> descends and holds the wrapper in position and the two slides 4, 4<1> then rise and carry the article to position II. During the ascent, a guide 13 turns down the sides of the wrapper. Horizontally moving slides 15, 16 approach and grip the article and wrapper and the slides 4, 4<1> recede. A folder 18 turns up one depending edge of the wrapper, the other is turned up when the slides 15, 16 move the article to position III over a, slide 30. The projecting ends of the wrapper are now folded in upon the plain, end of the cylinder. Three folders make the first three folds and a gummer 27, Fig. 9, swings upwards to transfer adhesive to the underside of the remaining flap 26. A plate 24 turns down this flap when the article is moved upwards to position IV, Fig. 8, between plungers 30, 30<1>. A slide 31 now engages the article, springs 310 mounted thereon passing over the top to hold the article in place while moving to position V, Figs. 1 and 22, at which point string is wound round the wrapper. The article is first gripped by tongs 55 at the cylindrical extension E'. A string V is drawn tightly in front of the portion E from a spool S through a brake 66 and guide 53, by pliers 51. The pliers hold the free end while the tongs 55, which are axially movable, move the article so that the end strikes against the string, which is applied to the sides by the tongs 34 as shown in Fig. 29. The movement continues until the string guide 53 is level with the right-hand end of the part E, as shown in Fig. 22, the pliers 51 are opened and the jaws 351 of the tongs 34 close upon the article as shown in Fig. 30. The tongs 55 are opened, and the tongs 34, which are movable both longitudinally and rotatably about their axis, make two complete revolutions without axial movement. This results in two turns of string being wound about the wrapper extensions 64, securing them to the extension E<1>. The string end is caused to lie beneath the turns by the action of a brush 61. The tongs 34 now release the article and the tongs 55 grip the extension E<1> again. The tongs 55 are now rotated and moved axially to the right so that the string is wound spirally about the article as shown in Fig. 31. The tongs 55 again release the article and the tongs 34 grip it. Three turns are now made without axial movement so as to cause the string to lie over a needle 70, Fig. 33, associated with the tongs 34. The needle is actuated to draw the end beneath the last three turns as the tongs 55 grip the article and draw it away towards a delivery outlet. The string is cut at an appropriate moment and gripped again by the pliers 51 for the next cycle.