US1187374A - Machine for shaping metal troughs and tubes. - Google Patents

Description

H. NOWAK.

MACHINE FOR.SHAP|NG METAL TROUGHS AND TUBES.

APPLICATION FILED MAY 14, 1915.

1,187,374. I Patented June 13, 191? 2 SHEETS-SHEET 1.

H. N0 WAK.

MACHINE FOB SHAPING METAL TROUGHS AND TUBES.

APPLICATION FILED MAY 14, 1915.

1 51611161 June 13, 1916.

2 SHEETS-SHEET 2.

I 1 1. v h I o \IIII'III 1 II In I] .1 I 1.. g

HERMAN NOWAK, OF BRIDGEPORT, INDIANA.

MACHINE FOR SHAPING METAL TROUG-HS AND TUBES.

Specification of Letters Patent.

Patented June 13, 1916.

Application filed May 14, 1915. Serial No. 27,995.

To all whom it may concern Be it known that I, HERMAN NowAK, a

v citizen of the United States, residing at Bridgeport, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Machines for Shaping Metal Troughs and Tubes, of which the following is a specification.

My invention relates to machines for bending and shaping sheet metal'material so as to particularly form tubing or pipes or eavestroughs or gutters.

Among the objects of the invention, I aim to provide a final conformation to the material together with suitable roller means to provide finishing or connecting beads, flanges, or the like; to provide a die means to roll the material into tubular form having lock flanges to-.

gether with a mandrel or arbor over which the tube passes after formation; 'to especially provide means to interlock the said flanges, and means to expand the tubes after interlocking of said flanges prior to completion of the tube as a final product.

Also I aim to provide a machine having a tube forming die together with removable supporting means, whereby the die may be removed and a gutter-forming die substituted.

With the foregoing as well as additional objects such as'will hereinafter appear, in view, the invention resides in the novel details of construction, arrangement and combination of the parts as illustrated in the accompanying drawings. of one preferred form.

In said drawings :Figure 1 is a top or 7 plan view of the machine; Fig. 2 is a side elevation; Fig. 3 is a central longitudinal sectional view along the line 38 of Fig. 1; Fig. 4 is a cross sectional view on the line 44 of Fig. 1, with the supporting beams omitted but showing tubing in the process of manufacture; Fig. 5 is a fragmentary side elevation'of swaging means which may be employed; Fig. 6 is a detail perspective view of the pipe-forming die; Fig. 7 is a fragmentary detail illustrating corrugating means which may be employed, and .Fig. 8 is a perspective view of the die member and supporting means used in the manufacture of guttering.

die means to roll the materialfed through the machine may cooperate with suitable dies or shapers to impart the general Referring specifically to the drawings, the operating mechanism of the machine may be mounted from a su'ftlble base, for instance, longitudinal side beams 1. At the feed end of the machine, are mounted from the beams 1, side walls 2 which are spanned by and mount a suitable form of feed table 3. Also in walls 2 are mounted as bearings, a power or drive shaft 4 and an auxiliary shaft 5 parallel therewith and also in the same vertical plane. On the shafts 4 and 5 are mounted suitable rollers 6. Adjacent the rollers 6 are also mounted vertically alined shafts 7 and 8 in the walls 2. The shaft 8 has mounted thereon a concave shaping roller 9 while the shaft 7 has mounted thereon a convex shaping roller 10. Shaft 4 is driven from any suitable source of power as by a belt (not shown) which may cooperate with a fixed pulley 11 and a loose pulley 12 both mounted on the shaft. Also a fly wheel 18.niay be mounted on said shaft 4. In addition, shaft 4 has a gear wheel 14 keyed thereto which meshes with a gear wheel 15 keyed to shaft 5. Gear wheel 15 meshes with a gear wheel 16 which is an idler and mounted from a stub shaft 17 extending from one side plate 2, and meshing with a 'fed from table 3 between the rollers 6 and then guided between the rollers 7 and8 which results in convexing the material as will be seen by the dotted lines at 25 in Fig. 4 which represents the material. One longitudinal edge of this dished material passes between the rollers 22 which results in the provision of a lock flange 26 at one side of the material as seen in Fig. 4. At the other longitudinal edge-of the material, it passes between therollers 23 and 24 to provide a lock flange 27 as also seen in said Fig. 4. It will bev noted that roller 23-is substantially conical in order that it may properly be disposed between the flange 27 and remainder of the material ,in the process of manufacture.

Second side plates 28 are fastened to the beams 1 and a supporting bracket 29 spans the plates 28 and is removably fastened thereto as by set-screws 29. Bracket 29 in its upper surface, has a concavity 30 in which is seated adie 31 of the form shown in Fig. 6 and which is fastened to the bracket by means of bolts 31. This die is shaped so as to provide the slot 33 adjacent its frustum end and angular edges 34 leading from the slot 33 to the base end of the die. Mounted at the top of the plates 28, is a bridge or cover plate 35 fastened in place by means of set-screws 36. Brackets 37 are fastened to one end of the plate 35 by means of setscrews 38 which pass-through elongated slots 39 of the brackets and which permit adjustment of the brackets relatively to the central longitudinal vertical plane ofthe machine. One bracket 37 mounts a roller 40 adjacent one end of the die 31, which roller 40 is frusto-conical and has its frustum uppermost. The other bracket 37 mounts a roller 41 substantially similar in shape to the roller 40 but with its frustum lowermost.

Roller 40 is preferably disposed in a lower the lock flanges 26 and 27, after passing between the rollers 22, 23 and 24, passes into the die 31 and the flanges 26 and 27 overlap the exterior of the die at edges 34. As the material advances, the interior shape of the die curls. or rolls it substantially into the shape of a tube, but having the flanges 26 and 27 on the exterior of the die. At the proper stage of advancement, flange 26 is engaged and guided by roller 40, while flange 27 is engaged and guided by roller 41 over the flange 26, whence it may interlockingly engage said flange 26. Suitable means have been provided to expand the material at this stage which may be in the form of a substantially cylindrical arbor or mandrel 42, preferably provided with a tapered receiving end 43.' This mandrel is supported by grooved shaping rollers 44, 45 and 46. Said rollers 44, 45 and 46 also serve to draw the tubing over the mandrel. As saidtubing passes over the tapered portion 43, same is pulled into tight relation. Above the mandrel 42 is disposed a seaming roller 47 having a groove 48, see Fig. 1, which presses the flanges 26 and 27 into tight locked relation. As the tube passes between rollers 45 and 46, theseam at the junction of the flanges is practically rolled out and the tube is practically atrue cylinder. Roller44 is prefer ably mounted on a shaft 49 journaled in standards 50 in which a-shaft 51 is also journaled and on which the seaming roller 47 is keyed. Beyond the seaming roller, on opposite sides thereof, guide plates for the material designated 52 are keyed. Rollers 45 and 46 may bemounted from shafts 53 journaled in standards 54.

In order to drive shaft 51 from shaft 4, sprocket gear wheels 4 and 51 are respec tively mounted on these shafts and" a sprocket chain 4 trained over the sprocket wheels. Since a sprocket wheel 51 is mounted on shaft 51 and a similar wheel 53 is mounted on upper shaft 53, and a sprocket chain 53"v passes over these wheels, shaft 53 is driven from shaft 51. Shaft 51 drives shaft 49 through the meshing of gear wheels 49 and 49 on these respective shafts, while upper shaft 53 drives lower shaft 53 as gear wheels 46 and 46 on the shafts 53, mesh.

After the cylindrical tubing has passed rollers 45 and 46, it may further pass through a suitable swage or swedge, for instance, that of the type shown at A. This type, preferably, hasv a plurality of radiating arms 55 which bear directly against the tubing and which are pivoted as at 56 and yield against the tension of springs as at 57. Such arms 55 enable the material to be readily removed from the machine, especially when made in a plurality of sections, since one section can be removed without interference with another.

It may be desired to corrugate the tubing,

in which event, I prefer to use the meansshown in Fig. 7 and which is carried by a plate 58. This plate 58 has side ribs 59 which may removably slideinto grooves 60.

of plates 54. A ring'61 is .positioned on plate 58 by means of'brackets 62 and on this ring a suitable number of corrugating rollers 63 may be journaled so as to directly engage the tubing which should pass through a central opening 64 of plate 58.

In some instances, it maybe desired to form guttering with the machine, in which event, bracket 29 and die 31 are removed and the bracket 65 of Fig. 8 substituted and also mandrel 66 of Fig. 8 substituted for mandrel 43. Bracket 65 carries a die 67, the interior wall of which is tapered. The material is passed through this die 67 with flanges overlapping its side edges and which are engaged for beading by rollers 68 journaled on arms 69 of the bracket 65. expanded so that lock flanges 26 and 27 are Since merely the preferred embodiment of the invention has been illustrated and described, it is to be understood that changes in the details of construction may-be resorted to within the spirit and scope of the appended claims.

I claim 1. In a machine of the class described,

shaping means, means to form flanges on material shaped by the shaping means, a die through which the material passes, means to interlock flanges formed on the material, a

mandrel to be engaged by the material, and seaming means for the interlocked flanges cooperating with the mandrel.

2. In a machine of the class described, a die provided with a longitudinally disposed slot, means to pass material through the die,

means to form the flanges on the material, a

supporting structure for the die, rollers to interlock the flanges mounted on the supporting structure, and means operating to thereafter expand the material.

3. In a machine of the class described, a

supporting structure, shaping rollers supported therefrom, flange forming rollers sup- I ported from said structure, a second supporting structure, a die carried by the second supporting structure, rollers to engage the flanges of material passing through the die to interlock the flanges mounted from the second supporting structure, and a mandrel cooperating with the die and last men tioned rollers.

In testimony whereof I aflix my signature in presence of two witnesses.

HERMAN NOWAK.

Witnesses:

H. KLIME, FRANK E. HERZ.

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