-
This invention relates to machines for sorting articlesuch as stockings or the like, particularly long hose oladies’ stockings. Due to inequalities in the yarns and variations in thtension to which they are subjected as they are fed tthe needles of commercial knitting machines, ladiesstockings produced by such machines vary very considerably in proportions especially from the standpoinof length and the height of heel reinforcements. The differences become even more pronounced as a consequencof frequent handling of the stockings in the ?nishing operations of toe closing, seaming, pro-boarding, dyeing and?nal boarding. It is therefore necessary to match thstockings, i. e., to “pair” themin preparation for marketing. Pairing of the stockings by hand, as has been thgeneral practice heretofore, is not only tedious and timeconsuming, but entails employment of experienced helpat high pay which adds very considerably to productioncosts. The chief aim of my invention is to overcome the abovementioned drawbacks.31250
- 上一篇：机械搅拌罐英文文献和中文翻译
- 下一篇：网上电影票预订英文文献和中文翻译
This objection is attained ipractice, as hereinafter more fully disclosed, throughprovision of a relatively simple reliable and efficient machine whereby stockings successively placed therein aresensed for length and/or heel proportioning and, in accordance with their lengths and/or heel proportioning,are automatically deposited into different collecting receptacles pre-assigned to receive them. Other objects and attendant advantages will appearfrom the following detailed description of the attacheddrawings, wherein: Figs. 1 and 2, taken together, show the side elevationof a stocking sorting machine conveniently embodying myinvention, with portions thereof broken out and othersin longitudinal section. Figs. 3 and 4, taken together, show the machine in topplan, likewise with portions thereof broken out. Fig. 5 shows, in elevation, the front or loading end ofthe machine as seen from the left of Figs. 1 and 3, withthe mid portion broken out. . Figs. 6 and 7 are fragmentary detail views in transversesection taken as indicated respectively by the angled ar rows VI—VI and VII-VII in Fig. 1. Fig. 8 is a fragmentary detail view in horizontal sec~tion taken as indicated by the angled arrows VIII-—-VIIIin Fig. 1. - Figs. 9, 10, ll, 12, 13, 14 and 15 are fragmentary detailperspective views of various portions of the machine. Fig. 16 is a diagrammatic View showing the connectionsbetween various pneumatic and electrical devices em bodied in the machine. Fig. 17 is a view similar to Fig. 16 with the controlswitches for the electrical devices set for automatic sort ing by the machine of stockings of varying lengths andheel heights. Figs. 18 and 19 are views which, in turn, are similarto Fig. 16 but with the control switches set respectivelyfor automatic sorting of stockings of different lengths
only, and for automatically sorting stockings in accord ance with variations in heel height only. With more speci?c reference ?rst more particularly to Figs. 1-5, it will be noted that my stocking sorting ma chine comprises an open foundation frame 1 which may be of structural steel with the component parts thereof rivetted together or otherwise rigidly united at the regions of juncture. Arranged longitudinally Within the frame 1 is an endless conveyer whereof the side chains 2 are trained about pairs of upper and lower sprocket wheels 3, 4 and 5, 6 which, respectively, are a?ixed to trans verse shafts 7, 8 and 9, 10 at opposite ends of the ma chine. The shaft 7 is journalled in bearings 11 which. are shiftable along slideways 12 on the upper longi tudinals 13 of frame 1 by means of adjusting screws 15, the shaft 8 being rotatively supported in said upper longi tudinals, and the shafts 9 and 10 being journalled in ?xed‘. bearings 16 and 17 respectively on the lower longitudinals 18 of said frame. As a result of this construction, the chains 2 are constrained to move in substantially rec tangular paths in the direction of the arrow shown in Fig. 1, while held taut by proper adjustment of the‘ bearings 11 of shaft 7 by the screws 15. The chains 2 are driven by power transmitted through a speed reducing sprocket chain connection 19 (Fig. 2), to the shaft 8 from an electric motor 20. The upper horizontal runs of the conveyer chains 2 are slidingly sustained from‘ beneath upon tracks 21 and 121 secured to supplemental angle section longitudinals 22 and 122 which are sup ported by brackets 23 and 123 from the upper main longitudinals 13 and 113 of frame 1 somewhat inward of and above said longitudinals as best shown in Figs. 1, 2, 3, 4 and 6. ‘ Af?xed to the chains 2 at uniformly spaced intervals, are lugs 25 with inwardly-extending lateral socket pro jections 25a for reception of pivoting trunnion projections 26a of lugs 26 at the frontal corners of ?at rectangular trays 27 by which inpidual stockings to be sorted are temporarily supported in the machine. The trays 27 are struck from sheet material, preferably polished light re?ecting aluminum, stainless steel or other corrosion resistant metal, and are provided along their end and side edges with downward stiffening ?anges. The socket projections 25a of the chain lugs 25 ride on the tops of the supplemental longitudinals 22 and 122 during move ment of the chains 2 on the track rails 21 and 121, and are gauged by sliding contact'of their distal'ends with upstanding guard strips 28 and 128 secured to said track rails, see Figs. 3, 4, 6, 10 and 11. At their rear corners, the trays 27 are provided with lugs 29 having short‘ lateral projections 29a which, except as later explained, normally ride on the inward horizontal top ?anges 22a and 122a of the supplemental longitudinals 22 and 122 of the frame as best seen in Figs. 3, 4, 5, 6, 10, 11, 12 and 13. Each tray 27 is provided, adjacent one side edge, with a heel stop 30 to facilitate accurate placement of‘ a stocking S thereupon, and along its forward or leading edge adjacent the opposite side edge, with a guideway 31 for a slide 32 having an upstanding stud 33 for a purpose hereinafter described. The stockings to be sorted are placed in a pile P on‘ a shelf 35 which is bridged over the conveyer at the front or loading end of the machine, and which is suit ably supported at its opposite ends from the frame longi tudinals by brackets 36 and 136. As the trays 2'7 suc cessively assume a horizontal position immediately after rounding the sprockets 3 at the loading end of the ma chine, inpidual stockings S are taken from the pile P by hand and positioned on said trays in the manner previously pointed out with their heels lodged in the stops 36, for advancement of the stockings rightward in Figs. 1 and 3 beneath the shelf 35. 3 The means provided for successively sensing the stock ings for length includes a photo electric eye 40 within a housing 41. As shown, this housing 41 is mounted on aslide carriagel42 attached to the outer end of the piston 43 of a double acting air cylinder 44 supported at one side of the machine by a ?xed bracket 45, said carriage being shiftable in and out to a limited extent transversely of the machine on a ?xed cross member 46. Compressed air is admitted to and exhausted from cylin der 44 under the control of a magnetically-actuated slide valve 47 which will be referred to again presently. Also secured to the piston 43 of cylinder 44 is a pusher pro jection 48 for engaging the upstanding studs 33 of the slides '32 as the trays 27 successively pass beneath the sensing eye 40. 'For the purpose of sensing the height of the high heel reinforcements H of the stockings,