GB453768A - Improvements in and relating to tobacco feeding mechanism for cigar making machines - Google Patents

Abstract

453,768. Cigar - making machines. INTERNATIONAL CIGAR MACHINERY CO., 5520, 2nd Avenue, Brooklyn, New York, U.S.A. Feb. 14, 1935, No. 4754. Convention date, Sept. 25, 1934. [Class 130] In a cigar-making machine, a tobaccoreceiving pocket is oscillated between a tobaccoreceiving position at the outlet of a hopper and a tobacco - delivery position and the tobacco in the pocket is separated from the tobacco in the hopper by a positively operated knife, mounted at one side of the pocket. Scrap tobacco is raked from both sides of a hopper 30 towards a centrally located outlet by pairs of agitators 47, 47<1> which describe paths 59, 60 moving the tobacco during their movements towards the outlet while leaving the tobacco undisturbed during their return movements. The agitators 47, 47<1> are connected by a link 57 and secured to shafts 41, 42 on a counter-balanced lever 43 and are actuated by a crank 46 on a shaft 49 carrying a gear wheel 51 which is intermittently rotated from a sprocket 50 loosely mounted on a shaft 21. The shaft 21 is oscillated by a lever 22 actuated by a cam 25 and transmits intermittent rotary motion to the sprocket 50 through a one-way clutch. To prevent jerky movements being imparted to the agitators an open circular spring is inserted in a groove in the gear wheel 51 and the trailing end of the spring is held stationary. The agitators move the tobacco into a pocket 63 which is carried by a gear segment 72, Fig. 4, loosely mounted on a shaft 31 and a portion of the tobacco is severed by arcuate knives 67, 66 carried respectively by a frame 75 fixed to the shaft 31 and by a gear segment 73 loosely mounted on the shaft. The frame 75 supports a shaft 77 carrying epicyclic gears 78, 79 meshing with the segments 72, 73, the gear 79 being larger than the gear 78. In the position of the pocket 63 shown 'in Fig. 4, suction transmitted through a perforated false bottom 111 removes dust from the tobacco. As a rack 54 is moved downwardly by the cam 25 the shaft 31 is turned clockwise and moves the knife 67 over the pocket, a stationary blade shearing off straggling scraps of tobacco. The movement of the shaft 77 with the frame 75 tends to move the pocket 63 clockwise ; an arm 74 on the segment 73 is held against a stop, (not shown), by a spring 69<1> and the shaft 77 is turned clockwise and the gear 78 tends to move the pocket 63 backwardly with respect to the knife 67. The resultant movement of the pocket 63 is clockwise but at a slower speed than the knife 67. These movements continue until the pocket is closed when resilient pads 65 on the sides of the pocket contact with arms 75a, 74 carrying the knives 67, 66. Further movement of the rack moves the knives and the pocket together towards an adjustably-mounted shoot 121 until a roller, (not shown) engages an arm 80 on the shaft, turning it anticlockwise and rotating the gears 78, 79 to open the pocket. To break up wads, the tobacco is thrown at an angle on to the surface of the shoot 121. The knife 67 closes the hopper outlet while the pocket is moved inside a housing 81, 811 to and from the shoot 121. On the upstroke of the rack 54, the arm 80 is carried out of engagement with the roller 87 and springs 69, 69<1> close the knives over the pocket. As the pocket approaches the filling position the segment 73 is held stationary by the stop and the rotation of the shaft 77 opens the pocket. While the pocket 63 is in the filling position, an arm 22<1> on the lever 22 operates levers 137, 138, 145 to open a hinged gate 82 so that the pocket may discharge into a passage 33. Any tobacco which has escaped between the housing 81, 81<1> and the pocket 63 while the gate is closed is collected in a curved tray 132, which, after the opening of the gate, is swung by a pin and slot connection from the lever 137 to discharge into the passage 33. The tobacco is compressed in the passage 33 by a plunger 35 into a measuring chamber 36, and a bunch charge is severed by a knife 124. The chamber is moved downwardly and turned through 90‹ to deposit the charge on a rolling apron 155. Specifications 395,921 and 453,686 are referred to.