US2343603A

US2343603A - Woodworking machine

Info

Publication number: US2343603A
Application number: US469103A
Authority: US
Inventors: Jr William Scott Whiting
Original assignee: Sonoco Products Co
Current assignee: Sonoco Products Co
Priority date: 1942-12-15
Filing date: 1942-12-15
Publication date: 1944-03-07
Anticipated expiration: 1961-03-07

Description

Mam}! 1944- s. WHITING, JR 3 Y WQODWQRKING MACHINE.

Filed Dec. 15 1942 i i \m \N E \W kw 3: N Lr o o a Patented Mar. 7, 1944 UNITE D STATES ATENT OFFICE .GClaims. ((1144-20) This invention relates to Woodworkingapparatus andmore particularlyto machinesfor cutting wooden blocks vfrom pieces of :stock andborine them-to provide articles of manufacture such as, for example, spools, bobbins, paper-roll blocks, or the like.

The general object of the invention i toprovide -a novel and improved machine'of the class described which is adapted to perform a plurality of operations on the-stock in producing the desired perforated article. The machine is substantially automatic in operation and re- .quires a minimum of .supervision in turning out the product in quantity. It is also of simple construction and easy and=economical to install, operate, and maintain.

In its preferred embodiment, the invention contemplates the provision; of a fixed abutment or anvilanda rotary drill carried by a fixed support and spaced from saidabutment. Between these members a tubular punch element is mounted for reciprocation. For most purposes the punch will boot a circular configuration but obviously it may be oval, polygonal, or any other shape within the scope of; the invention. One end -.of the tubular punch element is provided with a sharpened annular cutting edge and the opposite end is unobstructed and is disposed coaxially with the drill so that the latter may penetrate the ,punch element to a considerable extent during the oscillation or reciprocating movement of the punch in one-direction. During its movement in the otherdirection, the punch element is adapted to out or punch out a plug or blank :from a piece of stock held against the abutment "or anvil. Theplug will be frictional-1y retained within the tubular punch member so that it willbe presented .to the drill'dur-ing its return movement. The punch member maybe of a length equal to that of 'oneor more of the plugs and upon successive punching strokes the plugs will move along the punch element and will be discharged from tl'lefreartend of the-punch one by one.

Another of the objects of theinvention is the provision of a doubledrill support fixed near the center of the machine with therotary drills "facing outwardly in opposite'direotions. 'Abutment or anvil members are providedat spacedpoints fromeach of the drills andtwo punch members are connected for simultaneous movement, tone disposed between each drill and "abutment set. With thisarrangement it will be readily understoodithat when one of the vpunch members is its associated abutment, the other-punch mem- 5ber will-bring a previously cutplug against its .drill to bore it out. In this way a completed plug will be delivered during each stroke of the machine in both directions.

Otheljbbjects and features of novelty will be apparent from the following specification when readin connection with the accompanying drawing in which one embodiment of the invention is illustrated byway of example.

In the drawing:

Figure 1 isa plan view of a machine embodying the principles of the invention;

Figure 2 is a view of the machine in side elevation; .and

Figure .3 is a-iragmentary view in 'verticalsec- .tion of a portion of the machine showing the punch, the drill, andthe abutment at-one side thereof.

In the illustrated embodiment, the machine indicated generally by the reference numeral 10 ismounted on a base .H which may comprise two-spaced rai1s.l-2 and I3. Bridging these rails at spaced points along "the machine are the abutment plates or anvil members 15 and 46. These plates may be secured to the rails 42 and 13 as by means of bolting the pedestals or feet l1 thereto. The plates 15 and H; are disposed transversely of the :machine and are connected together by means of theparallel spaced bars 13 and I 9. These bars may be secured to theiplates by means of the nuts 20. 'At acentralpoint'between the 'plates |5.and l6 :a drill support -''22 :is secured to the bars l8 and 19 as by means o'f th pins 23. machine and is providedwith bearings 24 "for the rotary spindle 25 which carriesupon each ot-its ends a drill -26. Pulleys Zlare'securedcentrally of the spindle 25 "and may be driven 'rrom any source of power by means {of a belt orchain.

'Slidably mounted upon the guide'bars l8 and I'9 'between the-drill support-22 and the respective :anvil plates wand lfiare the'cross'heads is and '29. These cross heads :comprise the sleeve portions 3U'which fit the rods l8-and i9 andsli'de thereon'and the crossheads are rigidlyconnected together for simultaneous movement "along the :bars by means o'fithesi'de plates :32'whichmay be boltedtothe sleeves as at Each of 'th'e cross heads 28 and Ziltare provided with central openings into which are fix'ed-the punch elements 35. The elements 35 are tubular and m'ay be of :any "suitable-cross sectional configuration, Ia'lthoug'h punches of circular shape are illustrated in the moving-to-cutout-a plug from the stockzagainstdrawing and will be the most trfrequently I'em The member 22 extends across the ployed. Each punch member 35 is provided with an annular flange 36 by means of which it is bolted to the cross heads. The forward annular end of each punch is beveled to provide a sharp cutting edge 31. Each abutment plate or anvil l5 and I6 is preferably provided with a central opening 38 into which the cutting edge 3'! of the punch may enter as it completes the servin of a plug or blank P from the stock indicated at S in Figure 3 of the drawing.

Driving means for the device are mounted at one end of the machine for example on the plate 43 which forms a part of the base ll. Pillow blocks 42 are bolted to the base plate 40 and are provided with hearing grooves and bearing caps 43 for the drive shaft 45. This drive shaft carries a gear wheel 46 at its central point which meshes with a driving gear 41 which may be rotated by any suitable source of power. each end of the drive shaft 45 there is mounted a crank disc 48 carrying a crank pin 49 which is connected by means of the pitman 50 with the nearest bolt or pin 33 carried by the cross head 29. I

The operation of the device will be readily apparent. Pieces of suitable stock are held against the faces of the anvils or abutment plates l5 and I6, preferably with the grain extending in the same general direction as the axis of the machine. The machine is set in operation and the cross heads 28 and 29 reciprocate upon the slide rods l8 and I9. One of the punches 35 severs a plug from the stock which plug is frictionally held within the tubular punch element during its return movement. During this same return movement the other punch element cuts a plug from the stock against its anvil. Upon successive punching movements the plugs will accumulate within the interior of the pun-ch elements and will be carried toward the drills 26 which will rotate by means of the pulleys 21. The plugs indicated at P in Figure 3 will be brought against the drills and will be bored out during each nonpunching stroke; The accumulated plugs will then fall out of the punch members one by one upon successive punching strokes and may be caught in a suitable receptacle beneath the machine. Finally, if necessary or desirable for the particular work at hand, the plugs or other such articles may be thoroughly dried and turned down in a lathe.

It will be seen that by means of the present invention, I have provided novel and improved means for rapidly punching and drilling articles such as spools or paper-roll plugs. One skilled in the art will also readily perceive that the plugs may be cut from irregular pieces of stock of varying diameters and which cannot be used on the conventional plug or spool machines. It is to be noted that there is no more power required to punch a plug from a large piece of stock than from a small one. Also knots occurring in the stock may be readily sheared off, whereas these cause much difliculty in using any kind of rotary cutting machine or lathe. Furthermore, the punch will out many times as many plugs as any other known cutter without being resharpened.

Although the machine has been illustrated and described as being in a horizontal position, it may be inclined or disposed vertically if desired; and itwill be understood that various changes and modifications can be made in the illustrated and described embodiment without departing from the scope of the invention as defined in the following claims.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. A woodworking device comprising, in combi- 5 nation, a supporting frame, a stock supporting member on said frame, a support on said frame at a predetermined distance from said member, boring means on said support extending toward said member, a carriage mounted on said frame 10 for reciprocation between said member and said boring means, an open ended annular punch and work gripping means on said carriage, whereby a blank may be punched fom a piece of stock at said member at the end of one stroke of said carriage, said blank being retained in said annular punch and work gripping means and forced to its opposite end by successively punched blanks to be presented to said boring means during an opposite stroke of said carriage, and the further operation of said device in punching blanks acting to force said blank from said gripping means during a subsequent stroke toward said member.

2. A woodworking device comprising, in combination, a supporting frame, an anvil member at one end of the frame, a support fixed to said frame at a predetermined distance from said anvil member, a rotating drill mounted on said support, a carriage slidably mounted on said frame for reciprocation between said anvil member and said drill, a tubular punch member having sharpened forward edges carried by said carriage, said sharpened edge being directed toward said anvil member, whereby upon movement in one direction the punch cuts a blank from a piece of stock held against said anvil member, the blank lodging frictionally within the tubular punch member, and upon movement of the carriage in the opposite direction the retained blank is presented to th drill for boring, the finished blanks being discharged from the rear end of the tubular punch member upon succeeding punching strokes.

3. A woodworking device comprising, in combination, a supporting frame, an anvil member at each remote end of the frame, a single support fixed to said frame at a central point thereon, a rotatable shaft on said support, two rotating drills each rigid with one end of said shaft and facing in the opposite direction from the other and toward one of said anvil members, unitary means for rotating said shaft, a unitary carriage slidably mounted on said frame, straddling said drill support, and having parts disposed for reciprocation between said anvil members and said drills, a tubular punch member having sharpened forward edges carried by each part of said carriage, said sharpened edges being directed outwardly toward said anvil members, whereby upon movement in one direction one of the punches cuts a blank from a piece of stock held against one of said anvil members, the blank lodging frictionally within the tubular punch member, and upon movement of the carriage in the opposite direction the retained blank is presented to the corresponding drill for boring and the punch on the opposite side of the member cuts its blank and retains it for presentation to the drill on the next movement in said one direction, the finished blanks being discharged from the ends of the tubular punch members opposite the sharpened edges thereof upon succeeding punching movements, whereby upon each movement of the punch member in either direction one punching operation and one drilling operation is performed and one blank is completed and discharged.

-i ii 4. In a woodworking device, a frame, a support on said frame, a drill on said support, a hollow cylindrical punch member slidably mounted on said frame for movement to and from a drill, a sharpened cutting rim at one end of said cylindrical punch member, the opposite or rear end of said member being open and unobstructed and facing the drill, and means for reciprocating said punch member on said frame to punch an article from a piece of stock upon movement in one direction, frictionally retain it within the hollow interior and then present it through said open rear end to the drill for boring upon movement in the opposite direction.

5. In a Woodworking device, a frame, a stationary support on said frame, a drill on said support, a hollow cylindrical punch member on said frame for movement to and from a drill, a sharpened cutting rim at one end of said cylindrical punch member, the opposite or rear end of said member being open and unobstructed and facing the drill, and means for reciprocating said punch member on said frame to cause said cutting rim to punch an article from a piece of stock upon movement in one direction, and withdraw the punched article upon movement in the opposite direction, said reciprocating means providing relative movement between said punch member and said drill support, whereby the blank may be presented to the drill for boring adjacent the said open rear end of said punch member upon said movement in the opposite direction.

6. A woodworking device comprising, in combination, a supporting frame, a stationary stock supporting member on said frame, a stationary support on said frame at a predetermined distance from said member, boring means on said support extending toward said member, a carriage mounted on said frame for reciprocation between said member and said boring means, an annular punch and work gripping means on said carriage, whereby a blank may be cut from a piece of stock at said member at the end of one stroke of said carriage, said blank being retained by said punch and work gripping means and presented to said boring means during an opposite stroke, the construction and arrangement being such that a piece of work is released from said punch and work gripping means during a subsequent stroke toward said member.

WILLIAM SCOTT WHITING, JR.