US1529805A - Match-block-sawing machine - Google Patents

Description

March 17, 1925.

P. G. OETTEL MATCH BLOCK SAWING MACHINE 5 Shees-Sheet 1 Filed May 8, 1923 @mmv March 17. 1925.A

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March 17. 1925. 1,529,805

P. G. oETTl-:L

MATCH BLOCK SAWING MACHINE Filed-May 8, 1925 5 Sheets-Sheet 4 March I7. 1925.

P. G.' OETTEL MATCH BLOCK SAWING MACHINE 5 Sheets-Sheet 5 ./JUU/ a2. Oeff/ Filed May a. 1925 Patented Mar. l?, i925.

UNTED STTES PAUL G. OETTEL, F SPCKANE, WASHINGTON.

MATCH-BLOCKISAVING MACHINE.

Application filed May S,

` ments in match block sawing machines ci the gang type wherein the material or planks to be sawed into blocks is conveyed to the gang saws by a combined chain feed and positively driven roller i'eed. The invention consists in certain novel combinations and arrangements of parts as will hereinafter be pointed out whereby a large capacity or production is attained, a smooth and uniform feed oi material is secured, and the proper adjustments of the saws and 'feed device may be attained with accuracy and facility. Means are also provided in the construction of the machine traine and operating parts whereby a portion of the trame may be moved to give access to the saws for removal, replacement or re-adjustmentln the accompanying drawings l have illustrated one complete example ot the physical embodiment or" rmy invention wherein the parts are combined and arranged according to one mode l have thus tar devised for the practical application the principles of my invention. v

Figure l is a view in side elevation of the machine, showing the operating means tor the combined chain and roller feed mechanism and clutch device therefor.

Figure 2 is a view at the opposite side of the machine illustrating the driving sprocket mechanism.

Figure 3 is a transverse sectional view at line 3-3 of Fig. 4.

Figure #l is a longitudinal, Vertical sectional i'iew of the machine at line 4 4 of Fig. 3.

Figure 5 is a top plan view of a portion of the machine showing relation of the chain and roller feed devices.

Figure 6 is a view with parts in section showing the use oit' a space plate for alining the 'feed rollers when they are adjusted ilfor cutting an increased width of the block.

Figure 7 is a perspective view of one of the track-rail adjusting-bars- Figure 8 is a detail perspective view ot one of the notched track rails tor supportsensi No. 637,482;

ing an endless chain, showing its relation to transverse brace bar lor preventing longi'- tudinal movement of the track rail.

Figure 9 is a sectional detail view of the adjusting device for the lrear rollers; The machine base i is of approximately rectangular form and provided with'an VeX-' tension la, and in order to permit ready access to the saws, the upper trame section 2 of the machine is movable vertically, as will be described hereinafter.

The saw arbor 3 isvjournaled vin lbearing struts and journal boxes 5 as usual and eX- tends transversely of the liked lower portion or'base of the machine. The` saws 6 are arranged on the arbor 3 in parallel spaced formation and separated by the spacing collars 7 which are vprovided in sets of different widths 'for use in cutting different sizes of match blocks from the planks,.the

latter being fed to the gang saws in a direction perpendicular to the grain of the wood in the planks. vUsual devices1including a lock nut 8 on the arbor, are employed, and the saws, through the arbor are positively driven from the pulley 9 on the arbor. The main pulley 9 is driven by belt in usual manner from a suitable source of power, not shown.

rlhe planks, to be cut into blocks, are fed to the gang of saws with uniformity and accuracy by a combined endless chain and roller feed, the former comprising `a suitable number o't' chains for supporting the plank which extends transversely of the chains, and the latter comprising a series of positively driven rollers and guide rollers adapted to bear down upon the tops of the planks as they are fed to the saws.

The endless chains are indicated by the numeral 10 and their straight working flights, which support the planks are indi'- cated by the numeral 1l, said working flights extending from iront to rear or the machine and ot' course arranged inparallelism. lThe feed chains are supported in the upper frame section 2 of the machine between a series o1C grooved wheels l2 at the front of the machine and al series of driving sprocket wheels 13 at the rear ot the machine, these two sets of wheels being carried by the respective shafts le and l5, journaled in suitable bearings in the movable section or frame 2 of the machine.

Power for operating the endlesschain feed is transmitted from the small pulley 16 on the saw arbor, through anbelt 17 to the larger pulley 18 on a Worm shaft 19 which extends transversely of the chains and is journaled in 'bearings in the base of the machine. A `worm gearing.. Qf usual` ytype is provided within the casing 2O for transmitting power fiointlie wormfshaft 1 9 to an angularly disposedv clutch shaft 21 which ,is journaled inbearingsy22 and im arts. rotary. m otion tothe vertical,` gear shaft 23 through the 'bevelfgears 24 and y2 5 as bestseen in Fglf s 23 is located atoneof the yrear corners of -themachine'and `is ,journaled in Vabearing 26` rigid with .the base l of thc machineand alsojournaled a. bearing 27 rigid with the movable frame 2 of `the kmachine and slidable on the shaft when the section 2*,is elevated vor lowered, The shaft l5 of the chain feed mechanism-is driven the Shaft 23 vbyfpinion 28 on the latter'and gea-r 29 `on theformer.

The chains @roller type each. chain is' supported throughout the length ofits working `flight, 11 trackT ra il 30, the rails being varranged parallell with the chainfiights and beneath theinto form a stable supporth ,To prevent longitudinal movement ofthe ,track rails rigid brace bar 31A isfprovided, whichisiixed and supported in. thebase 1 of the machine be.- neath/ the rails and entends transversely of they series of'rails. Each track rail 'is notched. as at 32tofit overthe' topk edge 'of the brace bar and in this manner the rails are anchored yagainst l,longitudinal move- 1 ment. At its respective ends each track rail vis provided witha curved plate as 33 which is complementary to thesupporting rollers vl24 and 13 vof ythe feed cha-ins, and the i series ofvrails is supported near the front and rear en,ds, of the machine by means of snppo'r'ting bars34and 35. These bars are cylindrical in crosssection and jou'rnaled in the' side walls of. thefupper `rframe` section 2, and theen'dsbf thebars aresquaredfas at 34 and 35 for ,the reception cfa wrench or other .handl to` l. wrs.t regulanfintervals throughout the'lengthfof each annular grooves, arefprovided cf'rrespondingv to the spaced distance of thetrack rails, andthe surfaces 3 6 of these grooves which, arefiat,

formy eceelitric, restnalar, Webs Thist Y WillQ/be eapparent that by means of a wrench AThe vertical shaft accurately lobtained and maintained by means of a pair of eccentric adjusting bars 37and 38 complementary to the supporting bars 34 and and j'ournaled also in the.

side walls of the frame 2. Each of these bars has a complementary series of eccentric disks 39, spacedapart rto register `with the spaced track rails vand engage aga-inst the lower edges of the rails. A wrench is applied at the squared endsoftheseadjusting bars and the bars are turnedintheir bearf ings to vsecure proper vadjustmen't of the rails through the eccentric disks39, to level or adjust the track rails. Four different` adjustments are provided vfor the flattened portions of the bars 35 and 36. As Will bessen in Fig. 3 through the action of theseeccentric dsks 39, the throw of which is greater than that of barsl 34 and 3 5, the

'rails are first elevated bythe action of the disks, and then the desired flat faces of the 34 and 35 are turned to top position. Then. the .adjusting bars 38 39 are tur-nedto lower the rails on these top or upper faces of the bars 35 and 36.

In connection with the chain Afeedl emplo'y'a :series of positivelyd-riven feed 'roll-' ers, supported above the chainsin. the frame 2 of the machine. i Three parallel, transversely disposed shafts 40, 4l, 42, are employed for the roller feed and journale'd in vertically adjustable bearing blocks 43.

` The bearing blocks are adjustably supported in the side wallsvof the framef2 which are slotted for rthe purpose, and ybolts or screw bars 43 may be utilizedfor the purpose ofr adjusting the shafts with relation tothe position of the feed chains.

Each shaft carries a series of feed rollers 44, the rollers of the shafts being arranged in staggered relation, and keyed lon their respective shafts so that they may be adjusted longitudinally of the shafts to corre- .y

spend withthespaced relation of` theffeed chains. As shown the staggered rollers are of a diameter that they overl`ap,' thu svse curing the advantage of comparatively large diameters, and clo'sefarrangement of theuishafts, to insureproper ofy the planks between the rollers `and chains vof.

the feeding mechanism.

For maintaining the proper adjustment and distance between the rollers of the sev# eral sets l employ a vset of spacing'pla'tes 45 of uniform thickness and interposed between adjoining rollers on each shaft. At their lower cdgesthese plates are notched, assit/.4G

to fit 'over the shafts 40, 41,42, and their endsthe'yfare provided with notches 4? to fit overthe anchoring bars 43 and 49, the former located at the rear of the machine and the latter in front of the feed rollers, and yboth fixed in the side walls of the section 2. A connecting rod Q'may be passed'through registering holes in the several space plates and supported in the side walls of the frame 2 to maintain the plates in rigid relation. rlhe plates are made up in sets lof varying thickness, but the plates of each set are of similar thickness to provide uniformity in spacing the rollers.

The feed rollers are positively driven from the vertical shaft 23, as seen in Fig. 1 through the gear coupling 51 and 52, the latter on the sprocket drive shaft journaled in the walls of the frame 2 at the rear or delivery end of the machine and extending transversely thereof. ln F ig. 2 will be seen the main sprocket wheel 54 on this shaft from which the main sprocket chain 55 extends over and drives the sprocket wheel 56 on shaft 41. Idle wheels 58 and 59 are employed to guide the inain sprocket chain as seen in Fig. 2. An auxiliary sprocket wheel 60 is carried at the end of the shaft 49 (Figs. 2 and 4) and the chain 61 from this wheel passes around and drives shaft 42 through the Wheel 82 on said shaft. At the opposite end of shaft 42 (see Fig. 1) a wheel 68 is carried, and through the chain 64 passing around the wheel 65 on shaft 40 the latter is driven.

The feed rollers, as seen in Fig. are arranged to-present the planks to the saws for cutting the planks into blocks, and in addition to these positively driven feed rollers I employ pressure rollers for engaging the plank as it is being sawed to prevent kick-back of the. material due to action of the saws. Two sets of these rollers, 66 and 67, are used to retain the plank on the feed chains until it has been passed from the saws, as seen in Fig. 8, and they arel arranged parallel with the sets of feed rollers between them and the rear end of the machine. These rollers are gravity actuated and are suspended in staggered relation, one roller over each feed chain or in position to co-act therewith. A number of the rollers 66 are arranged in series, each supported from an independent arched-arm 68 disposed above the feed rollers and provided with a hub 69 journaled on the anchoring bar 49 previously referred to. Each arm has an extension lug 'Z0 projected toward the front of the machine from its hub 69 and disposed in horizontal position, and excessive downward movement of the series of rollers is limited or prevented by the utilization of a single retaining bar 71. The retaining bar is disposed transversely of the feed chains and is supported in end brackets 72 (see Fig. 9) which are lixed to the side walls of the frame 2. A vertically arranged screw bar 78 is supported in each bracket and passes through a threaded opening in the end of the retaining bar. By turning the screw bar or bolt 78 it will be apparent that the retaining bar may be raised or lowered and by means of the lock nut 74 on the bolt the latter may be securedv in adjusted position. A set bolt 7 5 in the. bracket, above the end of the retaining bar may be used to limit movement of the retaining bar.

The rollers 67 are also arranged in series and each roller is supported from a suspending arm 76 which extends toward the rear of the machine. Each arm has a hub 7T journaled on anchoring bar 48 and a rearwardly extending lug 78 is projected horizontally from the hub as seen in Figs. 8 and 5. The alined lugs 7 8 are held by gravity against the underedge of a retaining bar 'T9 which performs a function similar to the retaining bar 7l. The retaining bar is supported from a cross bar 80, which is provided with attaching bolts 8l passing through slots in the retaining bar, and adjusting bolts 82 supported in brackets 83 of the cross bar are used to adjust the retaining bar relatively to the cross bar, the two bars being then clamped together by the bolts 81. The two sets of pressure rollers may be provided with oil cups as 84 for lubrication purposes. Y

rlhe movement of the two sets of suspending arms andy their rollers is thus limited and adjusted by the position of the retaining bars, and the rollers are actuated by gravity to bear upon the saWed planks as they leave U the saws to prevent -kick back bythe saws, and the cut blocks are delivered by the chains at the rear ends thereof.

The upper frame of the machine may be elevated, carrying with it the chain and roller feed mechanism and supports, to gain access to the saws for replacement and readjustinent. As seen in F ig. 1 a supporting guide plate 85 is provided at each of the four corners of the machine and bolted to the frame` section 2,v with its lower end slotted as at 86 and projecting down alongside the wall of the base l. Bolts 87 are fixed to the base, pass through the slots of the plates, and clamp nuts 87 are used to rigidly hold the plates to the base member of the machine.

To elevate the upper section or frame 2 these bolts and nuts are loosened and the plates guide the movement of the movable frame 2. At each of the four corners of the machine is a screw bar, as 88, one of which may be an operating bar. These bars are vertically disposed and each is supported from the base to revolve in a stationary nut 89. At 90 on the movable frame a fixed bearing is provided for the screw bar. as seen in Fig. 3. These screw bars are actuated, manually, by a wrench or other tool applied to the squared end of a stud shaft 91 and its pinion 92 which revolves a cross shaft 93 journaled in the bracket 94.. This shaft extends across the front of the ,machine and is provided at its ends with a bevel gear 93 to engage with and revolve Cil complementary gear 95 on the screw bars, or rat least on two of them. At each side of the machine frame 2 and within the frame is journaled a connecting shaft as 96 extending parallel with the feed chains, each of which shafts connects aV pair of screw bars by a gear coupling as 97, 98. is thus arranged, by manually turning the stud shaft 91, the four screw bars may be simultaneously and synchronously revolved in their stationary nuts to elevate or lower` the movable frame with relation to the machine base; i lNhen the rframe is elevated Iaccess may be had to the saws and ,the entire, as sembly of the gang saws includingthe arbor, collars and .bearing strut may be detached and removed, and replaced. The saws, the feed chains, feed rollers and pressure rollers are all adjusted and spaced with vproper relation vone to another for uniformity in operation. j j

A clutch device isvindicated at 99 1 (Fig. l) on the clutch shaft 21 to control the feed mechanism.

By proper adjustment the saws may be spaced, together with the feed mechanism, to accommodate the machinefor various cuts of blocks, and by the described means Athe feedr devices may readily be adjusted to accommodate different thicknesses of planks. Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

' l. The-combination in a sawingmachine with a series of spaced parallel feed chains and operating mechanism therefor, of a complementary series of supporting rtrack-rails, means for elevating the rails and rotatable bars having selective faces for supporting said. rails iny elevated position.

2. The combination in a 'sawing machine With a series of spaced parallel feed chains and operating mechanism therefor, of a complementary series` of track-rails,y means for retaining said` rails against longitudinal movement, a pair of supporting bars yfor said rails each having annular grooves com-` pleinentry to the rails, and flat faces in said grooves variously spaced from the longitudinal center of the bars.

3,. The combination with a series of tracli rails of a pair ofI complementary support-` ing bars suspended transversely beneath said rails, each bar having spaced annular grooves complementary to the rails and angular webs forming the inner walls of said grooves with faces at various distances from the center of the bar.

at. The combination with 'a series of track rails of a pair of transversely disposed supporting bars forming bearings for said bars, each bar having spaced annular grooves and rectangular webs forming the inner walls, of saidv grooves comprising Hat faces disk posed at various distances from the longitudinal center ofthe bar.

5.r The combination with a series ofi-track rails of a pair of transversely grooved bars having angularly disposed supporting kfaces within said grooves and rotatable to adjusted position, and a pair ofv complemen- PAUL G. onr'rnn

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