Patent GB-1105869-A (GB)
Title: Component sequencing and taping machine
IPC: H05K13/00
Filed: 1966-06-22
Abstract: 1,105,869. Taping together electronic components; endless conveyers. UNIVERSAL INSTRUMENTS CORPORATION. 22 June, 1966 [20 Dec., 1965], No. 27850/66. Headings B8A and B8C. A machine for taping differing electronic components, e.g. resistors together in desired sequences along the tape includes a conveyer and at least two component dispensers, means to actuate the dispensers to deposit components on the conveyer, means to apply tape to the dispensed components and means controlling the dispensing and taping so as to arrange the taped components in successive predetermined groups. The individual types of components may be supplied already taped, the dispensers trimming off the tapes and ends of the leads. The final tapes may be in opposed pairs enclosing the lead ends and having pressure sensitive adhesive coatings, or tapes may be applied to one side only of the leads. General-The conveyer 20 comprises upstanding ribs 21, 22 slotted to receive the leads. Groups of dispensers 200-202, Fig. 1, are removably mounted above the conveyer and comprise each notched feed wheels 227, 228, Fig. 3, and cutters (260), Figs. 7-11 (not shown) which remove the tapes 10<SP>1</SP>, allowing the trimmed components to drop into conveyer slots 26. Tapes are fed from reels 307, 308, Figs. 1, 14 and a further tape 309 is fed between the convolutions of the end product strip as it is wound on to a reel 310 to prevent interlocking and friction between adjacent convolutions. The taping means includes a drum 303 notched to receive the leads and having tape receiving grooves. A roller 304 presses against the drum with serrated bands 333 to locate the leads and includes resilient pressure surfaces 334 engaging the tapes. Bands (306), Fig. 15 (not shown) pass round a roller (312) beneath the conveyer, round a portion of the drum periphery above the conveyer, over the roller 304, round upper tape guide roller 311 and back to roller (312). Components are held down against the resilient upward pressure of the bands by a guide 305 engaging their bodies but, as they pass the guide, the bands elevate them forcibly into contact with tapes 301 on the drum surface. Tapes 302 are then applied and the completed assembly wound on to the drum 310. Sequencing means.-Two embodiments are described. The dispensers are driven by gears 17 on shafts 18, Figs. 3, 18 (note: in Fig. 3 the dispenser adjacent that shown is removed to show the drive shaft only) and in one embodiment, a rack bar, Fig. 2a (not shown) is arranged to rotate the shafts 18 of all dispensers simultaneously to deposit a group of components on to the stationary conveyer. In the other embodiment, a series of " memory elements "601 is mounted on chains 602, 603 moving with the continuously moving conveyer 20 to actuate the dispensers selectively. Each element 601 comprises a rack 621, Fig. 18, movable to desired positions transversely of the chains 602, 603 by sliding along blocks 611. The racks are located to engage or miss as required, gears 432 on the drive shafts 18. The drive of the taping means is controlled by switches 543, 544 operated by certain of the memory elements. Means (not detailed) may be provided to halt the taping mechanism when no components are presented to it by the conveyer 20 so as to avoid large gaps between groups. A block 611 may carry two racks 621 spaced along the conveyer or two aligned racks (not shown).