Patent GB-190827779-A (GB)
Title: Improvements in and relating to Candy Wrapping Machines.
Inventor: SEFTON-JONES HERBERT
Filed: 1908-12-21
Granted: 1910-02-21
Abstract: 27,779. Jones, H. Sefton-, [Knott, E. R.]. Dec. 21. Parcelling cancly.-Relates to a machine for wrapping candy &c. in wrappers which are twisted adjacent to the ends and formed with a flared end portion, by guiding a web of paper into a tube into which the article to be wrapped is fed and there gripped and twisted. A web of wrapping-material 6, Fig. 1, is fed forwards over a roll 7, Figs. 1 and 5, with guiding - flanges 7<i>, between which engages the roll 8, which may be spring-pressed. A take-up roll 9 slides in guides 92 and is adapted to release the pressing-roll 8 when in the bottom position by engaging with the arms 8<c> and so check the feed when sufficient slack has passed the roll 7. The paper then passes guides 10, 11, 11<a>, Figs. 1, 6, and 6<a>, the latter of which are curved to fold the paper into a trough. The candy, which is conveyed in buckets 45<a>, is thrust at intervals by an arm 44 down a shoot 13 into a folder 12. The motion of the arm 44 is adjustable. The folder 12 causes the paper to be folded into a. complete tube containing the candy which has been introduced at intervals. Rolls 14 at the side assist the folding operation. The tube of paper then passes to the twisting- mechanism, Figs. 15 and 18, comprising a toothed wheel 181 with a flattened tube 183 of spring material for engaging the candy. The twister is rotated from a cam-operated sector 21. Cam-operated clamps 23 confine the tube at each side of the twister while the candy is being rotated. A spring 27<f> is arranged on the link 27 operating the clamps in order to secure a yielding action and the clamps should then close on a piece of candy. The working faces of the clamps are flared in order that the untwisted portions of paper may be flared. Crimping-members 25, comprising arms which close on the tube nearly completely, are operated to confine the paper close to the candy so as to prevent tearing during the twisting. The action of these arms is also made yielding by a spring. The delivery feed mechanism comprises gripper - blocks 31 mounted on chains 32 on sprocket-wheels 33. Each pair of blocks 31, the faces of which are corrugated, engages the untwisted portions of the wrapper. The chains work on runways 38 to ensure the action of the grippers. The sprocket-wheels are operated from the main shaft by a Geneva.stop connexion. Guide-plates 38<x>, Fig. 1, prevent the strain of feeding from untwisting the wrappers. The wrapped articles are pushed into a guide 39 and between shear blades 40, 41 which sever each wrapper at the flared and untwisted portion. The cutting-mechanism may be moved bodily to provide an adjustment relatively to the portion of wrapper to be cut. In a modified form of the invention, the paper feed is as shown in Fig. 22. The takeup roll is caused to descend into the path of an eccentric rod, the stopping of which prevents further feed of paper. The eccentric is on the shaft of the spur-wheel 7<d> and, when free to rotate, takes its motion from studs 72<e>, 72<f>, 72<g> on a wheel in the main driving system. Thesestuds are engaged by a recess on the spring-held clutch 71<d>. When the eccentric is stopped, the clutch rides over the studs. The jaws 183<a>, Fig. 33, of the twister are pivoted on the twister at 183<b> and are spring held by springs 183<c> in inoperative positions. The yielding portions of the jaws are formed by springs 183<d>. Cam-pieces 183<f> close the jaws by engaging the tail portions 183<x> through slots in the body of the twister. The rings 183<a>, 183<g> are rotated at such relative speeds as to cause opening and closing of the jaws at proper periods. The nippers and crimping-arms are operated from the same system of links and are adjustable longitudinally. Grippers are provided to seize the tube of paper in rear of the unwrapped articles and to convey it through the twister.