GB140440A - Improvements in and relating to machines for severing continuous bars or tubes, particularly glass bars or tubes, into sections - Google Patents

Abstract

140,440. Libbey Glass Co., (Assignees of Danner, E.). May, 3, 1916, [Convention date]. Cigarette-making machines.-Relates to apparatus primarily intended for continuously drawing a rod or tube of glass from a forming-apparatus and successively severing it into sections of predetermined length, but stated also to be applicable for severing tobacco rod used in making cigarettes. The action of the cutting-tool is illustrated in Fig. 24, the path of the rotating tool or disk 76 relatively to the work A being indicated in dotted lines. The tool moves forward at the same speed as the work, first downwards into contact and then upwards therefrom, as shown by the line a, the line b indicating the non-cutting return strode. The severed sections fall between the plates or vanes of a rotating delivery wheel 53. The work A, Figs. 1 and 2, is fed between two horizontal spring-mounted guide-rolls 3 and thence between two sets of chains 4, 4. driven at the same speed through upper and lower driving-shafts 8, 6 and spur-gearing 44, 45, 48, 49 from a motor 43. The upper shafts 8, 9 are mounted so that they can be adjusted vertically relatively to the lower shafts G, 7. The chains 4 are held in yielding contact with the work by means of spring-pressed upper plates 20 and a stationary platform 19 below. The work passes from the chains through a guide 54, Fig. 2, and thence between guide-rollers 51, similar to the guide-rolls 3. It next passes under the cutter disk and over a spring-supported table 52, and after being acted upon by the cutter travels past a guide-member 55 into one of the pockets of the delivery wheel 53. The cutter 76 is rotated by a motor 64, Figs. 1 and 5, through belt-gearing 65, 66, 75. It is mounted in a bearing-fork 71 which is adjustably connected to a slidehead 70 so as to permit tensioning of the belt 75. The slidehead 70 is traversed along a shaft 61 at the same speed as the work by means of an ' endless chain 99 driven through gearing 110, 111, 112 from the main motor 43. A transverse stubshaft is mounted on the chain and carries at each end rollers which engage in a groove formed in the vertically-elongated boss 104, Fig. 5, of a yoke or slide frame 102 which is mounted to slide on the shaft 61 and carries the slidehead 70. The downward movement of the cutter to effect the cut is obtained by means of a cam splined on to a shaft 118, Fig. 1, which is driven through gearing 120, 122 from the drive-shaft 6 of the feedchains. A roller on an arm 126, Fig. 5, contacts with the cam, and as the latter is rotated the arm 126 is rocked about the shaft 61 and imparts a similar rocking movement to the slidehead 70 and thence to the cutter. The cutter may be adjusted vertically with respect to the work by means of a, screw 129, Fig. 5. A pair of workguiding fingers are mounted by the side of the cutter disk and hold the work against any transverse movement during the cutting action. The delivery-wheel 53 is rotated intermittently by Geneva gearing 141. Fig. 5, driven through spurgearing 142, 143 from the shaft 118.