GB814912A - Method and machine for the production of packed coils of wire and the like - Google Patents

Abstract

814,912. Coiling and wrapping wire. GEOFFROY-DELORE S. A. Jan. 25, 1957 [May 30, 1956], No. 2773/57. Class 94(1). In a machine for coiling and wrapping wire, the wire 1, Fig. 1, is fed from a supply container 2 by a grooved pulley 3 co-operating with an endless belt 4, the pulley 3 being rotated intermittently by pawl and ratchet gearing 6 driven by a rack 5 which is operated by an air cylinder 7. The wire passes downwardly through a laterally-movable guide 8 to a winding mandrel 26 and the required length is cut off by a knife 9 controlled by a counter 10 which counts the number of rotations of the pulley 3. The mandrel 26 is slidable on a driven shaft 23, Fig. 2, and is formed with teeth at one end engageable with notches in the end of a coaxial driven shaft 24. Each shaft carries a series of pivoted arms 29 which may be swung from or retracted to radial positions by links 32 operated by a slidable rod 31, the arms terminating in coil springs 30 which may be swung from radial positions to positions in which they are parallel to the shaft axis by links 33 operated by a slidable tube 34. The wrapping material 11, Fig. 1, is fed from a roll 12 by wheels 13 which form transverse pleats, the wheels being driven by a rack 21 when a pivoted support 18 is swung downwardly by an air cylinder 22. The pleated material is fed downwardly towards the mandrel 26 by a roller 14 co-operating with a guide 17 and cut to the the required length by a knife 15. As the wire is fed to the mandrel, the latter is moved to the left so that the free end of the wire is gripped between the teeth and notches. The wrapper 11 is gripped between the wire and the mandrel and rolled under the first turn as shown in Fig. 7. After a layer of wire has been coiled, see Fig. 9, the arms 29 are swung out to fold the extending portions of the wrapper so that they form radial flanges. Plates 37 are then swung downwardly to protect the wrapper flanges while the winding of the coil is completed at a faster rate. The guide 8 is then located in a central position while the springs 30 are swung inwardly as shown in Fig. 11 to fold the edges of the wrapper over the external periphery of the coil. A moistened strip of adhesive tape is then fed towards the mandrel and applied to the edges of the wrapper by mechanism D, Fig. 1, the mandrel is moved to the right and the completed package falls into a shoot 61.