Patent GB-503344-A (GB)
Title: Improvements relating to cigar wrapping mechanism for cigar making machines
IPC: A24C1/30
Filed: 1937-10-07
Abstract: 503,344. Cigar - making machines. INTERNATIONAL CIGAR MACHINERY CO. Oct. 7, 1937, No. 27202. Convention date, Oct. 27, 1936. [Class 130] In a machine for wrapping cigar bunches the wrapping rollers and their operating means are supported by a housing 11, Fig. 1, which encloses .and protects the major part of the operating means from waste material dropping from the rollers. The housing has a main portion lying between transverse frame members 15 and enclosing the main portion of the operating means, and end portions enclosing other parts. of the operating means, the wrapping rollers being supported above the main portion in extensions of the frame members. Side openings 12 closed by removable covers permit ready adjustment of the operating means. The wrapping rollers consist of top rollers 35, 36, Fig. 8, and side rollers 37, 38, the latter being carried by brackets 42, 43 which are held together by tie rods 44 and pivoted on a stationary shaft 45, so that in the operative positions of the rollers the lines of contact with a bunch of tho side and top rollers carried by each bracket are equidistantly spaced from those of the corresponding rollers of the other bracket. The top rollers 35, 36 are carried by brackets 39, 40 held together by tie rods 41 and pivoted on the ends of the side rollers 37, 38, the brackets 39, 40 being held in their operative positions by torsion springs 46, of adjustable tension, secured between each pair of tie rods 41, 44 at points 'substantially central of the length of the bunches. To regulate the rolling speed of the bunch to suit the stretch required for different wrappers, a bracket 21, Fig. 3, is turned by a rod 28 on a cam shaft 16, driven from the main drive shaft. The bracket carries pinions 19, 20 meshing with a gear 18 on the shaft 16 and as the rod 28 is operated either the pinion 19 or a pinion 30, alongside or. integral with the pinion 18 and having one tooth less than the pinions 18, 19, engages a gear 24 on a shaft 25 which through a gear 26 drives the wrapping rollers. , A manually rotatable shaft 34 en. ables 4 the shaft 16 to be rotated during adjustments. The rollers 35.. 38 are opened and closed, fot the insertion arid removal of a bunch, by means of adjustable links 242 connected to 'extensions on the brackets 42. The links 242 are disposed outside the housing 11 and are actuated by a cam-operated lever 245.within the main portion of the housing 11. After being inserted between the wrapping rollers, the bunch is positioned axially by a member 65, Fig. 1 which is pivotally mounted on a support 251 adjustable axially on the shaft 45. The member 55 is operated by an arm 57 carrying a pin 58 sliding in a groove 59 in a head 60 formed on a rod 61 which is reciprocated in a bearing 62 in the upper part of the housing 11 by a cam 70 and return spring 71, A tuck needle 248 is then moved through a double-coned bushing in one of the frame members to hold the end of the wrapper on to the tuck end of the bunch. The needle 248 is actuated by a cam-operated lever 48 carrying a rod 249 which is loosely engaged between collars 250 on the rear end of the needle. The wrapper is guided on to the bunch and kept under tension by a plate 81, Fig. 9, carried by a frame member 80 which is pivoted on a bracket 76 and urged upwardly by a spring (not shown) having one end connected to a screw-threaded collar. The frame member 80 is moved outwardly by the engagement of a lug 93, on an arm 92 actuated by a cam 103 on the.shaft 16, with a screw 94 on the bracket 76. During this movement an arm 87 having an adjustable pin-and-slot connection 110 with a link 111, is moved by the arm 92 beneath a roller 84 to permit a cam-surface on the arm 87 to move the tension plate 81 downwardly. To adjust the position of the plate with respect to the wrapping rollers, the roller 84 is carried on an eccentric stud 85 adjustably mounted on an arm 86 on the frame member 80. A flag cutting device is formed by a stationary blade 116, Fig. 5, and a rotatable blade 119 both carried by an arm 120 and enclosed in a housing portion 11a removably secured to the main housing portion. The arm 120 is raised to bring the cutters into a position to nick the flag of the wrapper, and the blade 119 9 is rotated by the engagement of a V-shaped pulley 122 with a V-shaped pulley 123 on an arm 125 which is adjustably secured to a shaft 126 and raised by a cam-actuated lever 129. The pulley 123 may be driven by a motor secured to the shaft 126. A header cone, carried by an arm clamped to an arm 144 secured to a shaft 146, is normally held adjacent the cigar head by a cam 140 which engages one arm 129b of the lever 129. A spring 145 holds an arm 148 on the shaft 146 against a cam surface 150 on the other arm 129a of the lever 129. When the lever 129 is raised by a cam 132 the cone is carried away from the cigar head to permit operation of the flag cutter. As the lever 129 is lowered the cam 140 permits the spring 145 to hold the cone resiliently against the cigar head. Excess paste falling from the wrapper flag is deflected by a guide 156, Fig. 1, into a receptacle 167 removably attached to the housing 11.