US1629977A

US1629977A - Block feeding mechanism for match machines

Info

Publication number: US1629977A
Authority: US
Publication date: 1927-05-24
Anticipated expiration: 1944-05-24

Description

May 24, 1927. E. SNYDER BLOCK FEEDING MECHANISM FR MATCH MACHINES Filed July 3. 1926 2 Sheets-$ heet l ay 24 927 E. sNYDER BLOCK FEEDIING MECHANISM FOR MATCH MACHINES med July s flsze 2 sheets-sneer 2 H K mw ;body1ng my invention.

Patented May 2K4, 1927. Y

fren sTAras nmsrmrnsumma, or :Bannnarnia, pino, Assrenonmorrrn DIAMOND lintron 00M- PVASNY, krOF CHICAGO, ILLINOIS,

A CORPORATION OF ILLINOIS.

BLOGK-FEEDING MECHANISM Fon MATCH MACHINES.

Application filed '.Tuly .3,

--This invention relates to Vblock-feeding mechanism for match machines of that'class wherein blocks offwood are delivered to feed rolls and thereby intermittently moved to devices vwhich cut Asuccessive rows of splints 'from the blocks and insert the splints in a suitable carrier.

The objectof my invention is to `provide a block delivery-mechanism of simple and efhcient construction whereby 4blocks ar yranged-end toend, are uniformly advanced to-the feedv rolls irrespective offditferences in lthoheight of succeeding lblocks `or of the presence oflspacesor gaps between adjacent blocks as; they progress tothe rolls.

The invention, in its preferred 'form'herein `illustrated,comprises a block-feeding trough ;l 'an endless chain having -itsactive run arranged to; travel` in. thel vbottom ofI thef trough toward the" main block -feed rolls, which .chain'is f adapted to support and carr the blocks contained in the\trough;a vertically `movableresilient supportforlthe active runofthe chain, and a lnovel ffrictionally con- ;trolled Y feed -mechanism adapted k@to act upon the tops' ofthe-blocks and co-act with the chain to eiect the proper delivery of -the blocks-to the feed rolls.

The invention also comprises novel vvfeatures of 'construction and combinations of parts, allof which ywill be hereinafter described and claimed.

VIn the drawingsad 192e. serial-N0. 120.260.

ceivefvblocks of wood, 11, 'and direct them to the path of the usual splint cutters of the match ,-machine. VIntermittently rotatable yf'eedrollsrlQ are arranged in pairs kwithin said structure'and-are adapted to engage the blocks ('11) at top andbottom and positively .advancef'them stepbystepto the path of the cutters. 4Infthe' present instance,the shafts orftrunnions 1:3"of the rolls,which have, their bearings inthe `sides of the structure :110,are geared together forI concurrent rotation vloy'a train offgears Mat one side of the structure. One of the shafts or trunnions is-provi`ded `atthe Aopposite end ofthe structure with la ratchetwheel 15 andan oscillatinglever '16 -whereof -one arm carries aI pawl 17 in engagement with the teeth ofthe ratchet wheel. Thefother armofth'e lever is connected to and-operated `by Va reciprocating link V18-to effectthey intermittentrotation of the ratchet Vwheel andits shaft, such motion being transmitted thence through the4 gearing to thefeed rolls, asusual. i

The block-s`upply trough 19 leading Lto the guide structure 1() is illustrated asprovided with .two spaced parallel partitions V20 v'which 4afford three longitudinal channels whereby three lrows'of blocks aredirected simultaneously to theguide structure. The bottoms ofthe' respective channels are longitudinally slottedto accommodate the upper runs o'f'endless conveyer chains 21 whichengage the respective rows of blocks and impel Figure 1 is a plan of a portion of -the ."theintoward the-delivery end of the trough.

block-supply trough and associated parts equipped `with block-feed mechanism emvFigj'Z isa longitudinal `vertical section of the apparatus, ason'the line 2--2 of Fig. `1.

' Figs. 3 ande: are views,enlarged, of 'one of the frictionally controlled feed-rolls and one ofits friction washers, respectively.

Fig. 5 vis a side elevation of theltroughand the block jfeed mechanism thereof.

Fig. 6 is a vertical section through said Vtrough andmechanism, as onfthe line 6-f-6 of Fig.

Fig. 7 is a verticalusection, enlarged,

. througha pair of Jthe lfrictionally-controlled lfeed Trolls', and adj uncts. n

These `chains are* supported on sprocket whee1s122, 23 Aborne lay-shafts '24, 25 Ilocated `beneath and adjacent `the respective ends of the trough, the inner shaft 24 being equipped with a sprocket wheel 26 ,about which passes a chain 27 which `is driven from a suitable source of power in such vmanner asto edectlthe requisite 'travel of the conveyer chains. The upper runs of these chains rest upon parallel supportingV `bars 28, which., instead lof being `rigidly supl ported from end to end as heretofore, are mounted and arrangedl to exert yielding upward pressure against the yopposing runs of lthe conveyer chains and `the Vcontiguous rows of blocks as the latter are `being advanced to ythe deliveryend `of the trough. In the Ypresent instance the outer ends of the 'bars 28 are fixed to a lstationary cross-bar '29 Jlocated beneath 'the adjacent vend of the trough, the lengthof the bars28 permitting their limited vertical motion at their inner or forward ends. These forward ends overlie a cross-bar 30 which is spaced below and fixed to the underside of the trough. Each bar 2S has secured thereto the ripper end of a depending bolt 3l which extends freely through an aperture 32 in the bar 2S, and through an apertured socket piece 33 fast on the underside of the cross-bar. Seated in the socket piece so as to bear against the underside of the longitudinal bar 28'is a compression spring 34 which loosely encircles the bolt and tends to maintain the free end of the bar 28 and the overlying run of the conveyer chain yieldingly raised.

Instead of the overhanging and swinging chain mechanism heretofore employed for engaging and advancing the rows of blocks adjacent the delivery end ofthe trough, I provide a series of spaced-apart feed rolls 35 against which the blocks are firmly pressed by the spring` actuated bar 28, thus effecting the co-operative engagement of the chains 21 and rolls 35 with the opposing lower and Lupper surfaces respectively of the blocks. rlhese rolls, which are peripherally serrated or milled, are loosely mounted at spaced intervals on a transverse shaft 36 which is journaled in suitably supported boxes 37 at the respective sides of the trough. This shaft 36 is driven concurrently with the conveyer chains 21, preferably by the engagement of thedrive chain 27 with a sprocket wheel 38 on one end of the shaft 36. 'Fast on the shaft, in the spaces between the adjacent rolls 35, and also at the outer faces of the side rolls, are metal collars 39 against which friction washers 40 of fibre mounted on the rolls,'are yieldingly pressed. The rolls 35 are provided with laterally projecting pins 4l and the washers are suitably perforated and loosely fitted ou the pins. This connect-ion ensures the rotation of the, washers with the rolls, and since the washers are of libre there is no liability of their seizing the collars. Each of the rolls is formed with a series of spaced-apart transverse sockets l2 in which are' seated compression springs 43 which, bearing against the opposing washers, insure the requisite frictional contactof the washers and the collars.

The speed of the shaft 36 is such that when the rolls are free to rotate therewith, thel peripheral speed of the rolls corresponds withy the lineal speed of the conveyer chains, which latter speed is greatly in excess of that of the main block feed rolls l2. Hence the conveyer chains and the rolls 35 advance the interposed blocks much faster thant-he block feed rolls 12 will receive them, but since the rolls 35 are frictionally mounted on the shaft as above described the requisite slippage of the rolls 35 is ensured to compensate for the speed differential of the main block feed rolls. Inasmuch as the shaft 36 is continuously rotating, any gap that may exist between succeeding blocks (e. g. caused by interrupted feeding by the operator) while they are passing from the rolls 35 to the rolls l2, will be closed; and as the springs 3l tend normally to raise the bars 28 and the upper runs of the chains 2l differences in the height of succcediuf r blocks are compensated for aud a uniform feeding of the blocks is maintained.

It is to be understood that my invention is not limited to the details of construction herein disclosed, as the mechanism may be modified within the principle of the invention and the scope of the appended claims.

I claim- 1. In block-feeding mechanism for match machines, the combination with block feed rolls, supporting and operating elements therefor, and a block-supply trough leading to said rolls, of block-impelling means including an endless conveyer having its active run extending longitudinally of the bottom of the trough, a transverse shaft overhanging the trough in advance of said rolls, a feed roll loosely mounted on said shaft, a frictional connection between said rolland shaft, means for concurrently driving said shaft and conveyer at a higher speed than the block-feed rolls, and means for yieldingly raising the active run of the conveyer and pressing the blocks into engaging relation with the frictionally connected feed roll.

2. In block-feeding mechanism for match machines, the combination with block feed rolls, supporting and operating elements therefor, and a` block-supply trough leading to said rolls, of lilock-impelliug means including an endless couveyer having its active run extending longitudinally of the bottom of the trough, a transverse shaft overhanging the trough in advance of said rolls, av feed roll loosely mounted on said shaft', a frict-ional connection between said roll and shaft, means for concurrently driving said shaft and conveyer at a higher speed than the block-feed rolls, a bar underlying and supporting the active run of the couveyer, said bar being fixed at its end to the trough, and a spring resiliently supporting the free end of the bai` so as to raise the active run of the chain and press the blocks into enga ging relation with the frictionally connected roll.

3. In block-feeding mechanism for match machines, the combination with block feed rolls,l supporting and operating elements therefor, and a block-supply trough leading to said rolls, of block-impelling means including .an endless conveyer having its active run extending longitudinally of the bottom of the trough, a transverse shaft llt) overhanging the trough in advance vof said rolls, a feed roll loosely mounted on said shaft, collars fast on said shaft and embracing the roll, friction Washers interposed between the respective collars and the roll, means for concurrently driving said shaft and conveyer at a higher speed than the block-feed rolls, and means for yieldingly raising the active run ofthe conveyei and pressing the blocks into engaging relation With the said loosely mounted feed roll.

4. In block-feeding mechanism for match machines, the combination With block feed rolls, supporting and operating elements therefor, and a block-supply trough leading to said rolls, of blocleiinpelling means including an endless conveyer having its active run extending longitudinally `of the bottom of the trough, a transverse shaft overhanging the trough in advance of the rolls, a feed roll loosely mounted on said shaft, collars fast on said shaft and embracing the roll, friction Washers interposed between th e respective collars and the roll, means for concurrently driving said shaft and conveyer at a higher speed than the blockwfeed rolls, a bar underlying and supporting the active run of the conveyer, said bar being fixed at its end to the trough, and a spring resiliently supporting the free end of the bar so as to raise the active run of the chain and press the blocks into engaging relation with the said loosely mount-ed feed roll.

Signed at Barberton, in the county of Summit and State of Ohio, this 30 day of June, A. D. 1926.

EUGENE SNYDER.