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79. 发明专利

GB388964A An improved method of and apparatus for delivering laces from tip-applying mechanism 未知
公开(公告)号：GB388964A
公开(公告)日：1933-03-09
申请号：GB1401332
申请日：1932-05-17
申请人： PROVIDENCE BRAID COMPANY
IPC分类号： A43D98/00
摘要： 388,964. Packing &c. laces. BROOKES, N. E., 1, Quality Court, Chancery Lane, London.-(Providence Braid Co. ; Pawtucket, Rhode Island, U.S.A.) May 17, 1932, No. 14013. [Class 43.] In methods of delivering laces from tipapplying mechanism wherein each lace is successively tipped, the tipped laces are delivered in succession to a reservoir R, Figs. 2 and 3, to form a group with the laces held in a definite spaced relation exposed as for inspection. The reservoir is moved from the tipping apparatus and the laces may then be delivered in pairs to coiling and wrapping mechanism. The tipping machine comprises a carriage 21 moving on rails 20 and carrying fixed and movable nipper jaws 69, 69a. Controls 23, 24 operate a tail 70 of the movable jaw 69a to open it to engage lace material C which is held in a bight C by a lifter 63. The carriage then draws the lace along between dies D where a double tip T, T is applied, and the material is severed. The laces are delivered to the reservoir R by an arm 101, Figs. 1 and 2, pivoted on a shaft 100 and carrying parallel arms 102, 103 each having a fixed and a movable nipper jaw 104 .. 107. The movable jaws are operated by a rod III and mechanism 109, 110, the rod III being pivoted to a rock lever 112 formed with a shoe 114 adapted to engage a fixed cam 115. The jaws are normally held open by a spring 113 so that they may engage a tipped lace, and as the arm 101 moves forward, the shoe 114 engages the cam 115 and the jaws close. The arm 101 is rocked by gearing from a rod 121 operated by cam action from a main shaft. The machine is provided with brackets 131 whereupon guide rails 132 for a carriage are mounted. The reservoir R may comprise parallel bars 137 having spaced notches 138 preferably inclined at 45‹ to the bars, and is adapted to be mounted on the carriage. A rack 135 engages a gear 125 operated by ratchet and pawl mechanism 124, 127 from a cam on a shaft driven trom the main shaft, so as to move the reservoir step by step. The arm 101 delivers laces into the notches 138, the jaws being opened by cam action, the shoe 114 moving back in a groove 117 and under a pivoted bridge. The lace is deposited so that a short length carrying a tip T overhangs one bar 137, in order to facilitate inspection of the tips when the reservoir is removed. The reservoir may be wider than as shown in Fig. 3, such that only the tips project at the sides, or it may be integral with the carriage, or be formed by an endless conveyer system. Instead of notches, spring clips or other retaining elements may be used. The reservoir, when full, may be placed on a similar carriage on rails 173, Fig. 5, the carriage being similarly operated, but by a cam with a large throw so as to move the laces two steps at a time for engagement with jaws 152, 155, Fig. 7, on an arm 151 for delivering pairs of laces to coiling mechanism. The arm 151 is fixed to a rock shaft 149, pivoted to a carriage 145 moving on guide rods 141, 142 and reciprocated by a lever 147. The jaws are normally held closed by a spring and the movable jaw 155 is adapted to be raised to engage a lace by a cam device 162, 163 adjusted on a rod 143. The arm 151 carries an extension 157 bearing a cam roll 158 adapted to engage a cam surface 159, Fig. 5, on a fixed plate 160, such that as the carriage moves towards the coiling mechanism, the arm 151 is turned through a right-angle. The coiling mechanism comprises a reel member 43 carrying spaced sets of jaws 47, 48 and intermittently rotated by gearing 45, 59, so as to wind each pair of laces upon the jaws. The laces are presented to the jaws by the arm 151 and the reel 43 is then moved forward axially to engage the lace. The coiled laces are transferred to coil holders 126, 126a on arms 114a on a rotating turret, whereby the coiled laces are carried to wrapping mechanism. The operations are controlled and timed by a series of cams on two geared shafts, one being driven from a main pulley. The tipping and coiling mechanisms may be driven from a common shaft. The reservoir device may comprise an endless sprocket chain fitted at intervals with lace holders which may each comprise a base member with a hinged extension formed with a notch, the hinged extension being turned vertically for engaging the lace by a cam device. Two laces may be received in each notch. A brush wheel may be provided to position the depending lace.

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