US1437573A - Barrel-forming machine - Google Patents

Description

J. L. WALKER.

BARRELFORMINGMACHINE.

APPLICATION FILED JUNE H, 1922.

Patented Dec. 5,1922.

4 SHEETS-SHEET l 1:- WALKER.

BARREL FORMING MACHINE.

APPLICATION FILED JUNE I II'IQZI.

Patentefi Dec. 5, 1922.

4 SHEETSSHEET 2.

I I m III III

I I-IIIIIIIIIII Patented Eco. 5, i922.

JOSEPH L. WALKER, OF BATON ROUGE, LOUISIANA, ASSIGNOE TO K-D BARREL AND HAIVIPEB (30., F BATON ROUGE, LOUISIANA.

BARREL-FORMING MACHINE.

Application filed. June 11, 1921. SerialNouMGfiSl;

To (tZZ w From it may concern Be it known that I, Josnrrr L. W'ALKER, a citizen Of'tl'lG United States, residing at Baton Rouge, inthe parish of'East Baton Rouge and State ofLouisiana, have invented a new and useful Barrel-Forming Machine, of which the following is a specification.

This invention relates to machines for forming barrels, one'of its objeetsbeing to provide a machine to which the assembled hoops and staves or strips 'arei'fechthis machine operating to; grip one ofthe 'staves and to then bend the assembled hoops and staves to cylindrical form so as to bring'the ends of the hoops to position where they can be secured quickly and accurately.

Another object is to provide a machine of this type having means for holding the parts firmly in place so'that they will not break during the forming'process.

A still further-object is to provide a ma chine from which the formed barrelor drum can be removed quickly without requiring the disconnection of any of the parts.

A still furtherobject is to provide a machine of this character which is constantly under the control of the operator and which can be actuated easily to form the barrels or drums accurately.

Vith the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination andparrangement ofparts and in the details of construction hereinafter de scribed and: claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings the pre ferred form of theinvention has been shown.

In said drawings Figure 1 is a side elevation of'the machine. v

Figure 2 is a plan view thereof, a portion ofzthe feed table being removed.

Figure 3 is a section on line 3-3, Figtire 1.

Figure 4.. is a viewpartly in elevation and partly in section of one of the units of the mandrel and showing the clamp closed.

Figure 5 is a similar view showing the clamp open.

Figure 6-is a seetion 'on'line 66, Fig ure 4.

Figure? is aside elevation of one of the mandrel units showing that sideopposite to the-one illustrated in Figure 5.

Figure 8 is a plan view on 'a'reduced scale of one of the barrelmembers priorto being shaped.

Referring to the figures by characters of reference '1, 2 and 3 designate upstanding frame members connected by upper and lower beams 4 and 5 whereby arigid struc ture is provided. Bearings '6 are supported bythe members 1 and 2 and'journaled within these bearings is a shaft? havingone end portion projectingacross the space betweenthe members 2 and 3 and into ;a large opening 8 provided in the member '3, said opening being concentric with the shaft as shown particularly in 'F igure 1. Agear 9 is secured to the shaft 7between the bearings 6 and is engaged by a small drive gear 10 secured to alongitudinalsha'tt 11 which isjournaled in the members 1', Q'and 3 and isprovided at one end with a crank arm 12 or the like whereby the shaft can be rotated readily.

Keyed on and adjustable longitudinally of that portion of the shaft 7 between the members 2 and 3'is a series of mandrel units 13 each of which includes a segmental body memberlthaving a hub 15 concentric with the arcuate edge ot'the member and which engages the shaft 7. An 'earf16 projects from this member 14- and is pivotally engaged by one'end of an arcuatemember 17 whichbridges across the 'hub 15. Both of the members Hand 17 have one face hollowedrout or recessed'and formed onthe recessed side of the member 17 at that end remote fromth'e ear 16 isa lug 18. The corresponding end of the-member 14 has a shaft 19 3'oi1rnaled therein, this shaft carrying a eam20 on the .free endof which'is provided a l10ok21. The/shaft 19 extends transversely through the members 1 1 ofall of the units and the various cams 20 are connected to this shaft by means of set screws 22. A handle 23 is attached to one end of the shaft 19 as shown in Figure 5.

Each of the members 17 is provided between the ends of its periphery with a transverse recess 24 adjacent which is an inwardly extending guide sleeve 25 integral with the member 17. Slidably mounted within the guide sleeve 25 is a block 26 to the outer end of which is secured a gripping plate 27 adapted to extend into the recess 2 1 when the member 1'7 is in one of its positions. Each block 26 has a slot 28 in its inner end provided with a cross pin 29 and this pin engages one end of an eye bolt 30 the other end of which is slidable in a bracket 31 secured to the hub 15. -A nut 32 engages the bolt and serves to, prevent its withdrawal from the bracket 31. A coiled spring 33 is mounted on the bolt and bears at one end against the bracket and at its other end against the block.

A set screw 34: may be provided on each hub 15 for engaging the shaft 7 to hold the hub against sliding movement on the shaft after it has been adjusted to proper position.

Pivotally connected to the members 2 and 3 are side strips 34: provided on their free end portions with adjustable weights 35. To each of these strips is pivotally connected a head 36 and the two heads are connected by parallel rollers 37 constituting pressers. These rollers are adapted to contact with the units of the mandrel at points above the shaft 7.

One of the upper beams a is provided with longitudinal slots indicated at 38 and adjustably mounted on each of these slotted portions is a block 39. Angular guide rails 40 are supported by the blocks and extend between the members 2 and 3. These guide rails are so spaced apart as to support the ends of the staves or strips to be formed into a barrel.

A shaft 11 is journaled in the members 2 and 3 and has cams 412 secured thereto and located directly under the strips 34. A crank arm 13 or the like is secured to the shaft and by rotating the same the cams 42 can be caused to shift the strips 34: upwardly so as to move the rollers 37 away from the units of the mandrel.

Under normal conditions the cams 20 are out of engagement with the lugs 18 and the handle 23 is extended upwardly and inwardly as indicated in Figure 5. Thus the members 17 of the units are swung toward the members 14, leaving the clamping plates 27 out of the recesses 24.

The strips or staves S to be formed into. a drum or barrel are assembled with flexible bands or hoops B as shown in Figure 8 these bands or hoops projecting at one end beyond one of the end stays or strips. The assembled structure shown in Figure 8 is then placed on the guide strips or rails 410 and pressed forwardly until the first stave or strip S comes under the gripping plates 27 positioned as shown in Figure 5. It is of course to be understood that after the insertion of this stave or strip the handle 23 is swung outwardly to the position shown in Figure 1 with the result that all of the cams 20 will press against the lugs 18 and thrust them upwardly into engagement with the hooks 21. Consequently the stave or strip engaging the plates 27 will be tightly clamped as shown in Figure 1. The rollers 37 are then lowered into engagement with the structure, one of the rollers bearing on the membersl? while the other roller bears upon the hoops or bands B. The operator then rotates the crank 12 and this will cause the mandrel elements to rotate, pulling the staves and hoops therewith so that they will be caused to completely encircle the mandrel units, the projecting ends of the bands or hoops ultimately being brought to position over the opposed ends where they can be nailed or otherwise secured. The handle 23 can then be swung inwardly so as to release the lugs 18 from the hook 21 and, consequently, the members 17 will promptly swing inwardly out of contact with the staves adjacent thereto and the formed drum or barrel body can thus be withdrawn from the machine by pulling it longitudinally off of the collapsed mandrel and through the opening 8 in the member 3. By having the springs 33 the plates 27 can be thrust inwardly against the action of the springs so as to permit the formed barrel to be slid off of the plates readily.

By mounting the rollers 37 in pivoted heads 36, they act as equalizers for distributing pressure equally where the material to be shaped is first bent on the mandrel. Thus danger of cracking or breaking the 110 material is greatly reduced.

What is claimed is 1. In a machine for forming veneer barrels the combination with spaced mandrel units mounted for rotation, each unit in- 115 eluding a segmental body member and an arcuate pivoted member, of gripping plates mounted. on the body members, means for shifting the pivoted members for co-operation with the plates to engage one end of 120 the stock to be shaped into a barrel, spaced parallel rollers, and means for binding said rollers upon the stock throughout the width thereof and along parallel lines.

2. A machine for making veneer barrels 125 including rotatable mandrel units each having a segmental body portion and an arcuate pivoted portion, gripping plates, yielding means for connecting said plates to the body portions, means for simultaneously 13G shifting the arcuate portions relative to the body portions to bind one end of the barrel forming stock against the gripping plates, said plates being shiftable inwardly relative to the arcuate portions When the barrel is removed.

3. In a machine for making veneer barrels a plurality of rotatable mandrel units each including a segmental body portion and a pivoted arcuate portion, there being a recess in the periphery of each areuate portion for the reception of one end of barrel forming stock, gripping plates movably connected to the body portions and yieldingly supported adjacent the recesses, means for simultaneously shifting the arcuate portions toward the ripping plates to bind upon one end of the liarrel :torming stock projecting into the recesses, said plates being shiftable inwardly into the recesses and relative to the arcuate portions when the formed barrel is removed.

4:. In a machine for forming veneer barrels rotatable mandrel members, means (:0- operating therewith for detachably-gripping one end of the stock to be formed into a barrel, heads pivotally mounted, parallel rollers carried by the heads, and yielding means for binding the rollers upon the engaged stock throughout the width thereof to clamp the stock along parallel lines upon the mandrel members.

In testimony that I claim the foregoing as my own, I have hereto afiiXed my signature in the presence of two Witnesses.

JOSEPH L. WALKER.

Witnesses IVY E. SIMPSON, AGNES RooKELLI.

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