US1067521A - Corrugating and slitting machine. - Google Patents

Description

H. J ONES. 'GORRUGATING AND SLITTING MACHINE.

7 APPLICATION TILED OUT. 23, 1911. 1,067,521 Patented July 15, 1913.

3 SHEETS-SHEET 1.

. ATTORNEY H. JONES. GORRUGATING AND SLITTING MAC HINE.

APPLICATION FILED OUT. 23, 1911. I 1,067,521 Patented July 15, 1913.

a sums-8mm 2.

I l l ATTORNEY H. JONES. OORRUGATING AND SLITTING MACHINE.

APPLICATION FILED 001. 2a, 1911. 1,067,521 PatentedJuly 15, 1913.

3 SHEETS-SHEET 3.

WIT 8 E 1 "1 INVENTOR 20%, m 4 Q ATTORNEY UNITED a rENtr oFFIoE.

HARRY JONES, OF SUFFERN, NEW YORK, ASSIGNOR, BY 'MESNE ASSIGNMENTS, TO

AMERIQAN BRAKE SHOE & FOUNDRY COMPANY, OF MAHWAH,

CORPORATION OF NEW JERSEY.

NEW JERSEY, A

COBRUGA TING AND SLITTING MACHINE.

Specification of Letters Patent.

Patented July 15, 1913 Application filed October 23, 1911. Serial No. 656,325.

T 0 all whom it may concern:

Be it known that I, Ilamn' JONES, a citizen of the United States, and a resident of Sufi'ern, in the county of Rockland and State of New York, have made and invented certain new and useful Improvements in Cori-ligating and Slitting Machines, of which the following is a specification.

My invention relates to a machine designed for slitting and corrugating metal, the article produced thereby being adapted for various uses, but particularly adapted for use as an insert in brake shoes, the object of my invention being to provide a machine w'hich shall be of simple and durable construction, and capable of quickly and economically slitting and bending the metal strips in the proper shape for use.

A further object of the invention is to provide a machine which will simultaneously slit the metal strip in the direction of its length at different portions throughout its length and in parallel rows, the alternating portions of metal between the parallel slits being forced outwardly in one direction, and the intermediate portions of metal between the slits forced in the opposite direction.

\Vith the above and other objects in view, my invention consists in the improved corrugating and slitting machine illustrated in the accompanying drawing, described in the 'following specification, and particularly pointed out in the claims, and insuch variations and modifications thereof as will be obvious to those skilled in the art to which my invention relates.

In the drawing wherein the prefer-rad embodiment of my invention is illustrated: Figure 1 is a view showing my improwd machine in plan; Fig. 2 is a view showing a section upon a vertical plane, indicated by the line 2-2, Fig. 1; Fig. 3 is a View showing a section upon a vertical plane, indicated by the line 3-3, Fig. 1; Fig. 4 is a fragmentary view showing the bending and slitting rolls enlarged,and illustrating their operation upon a strip of metal; Fig. 5 is a fragmentary View showing the rolls, and illustrating their operation upon a strip of metal, this view being upon a plane at right angles to the plane ofv Fig. 4; Fig. 6 is a View illustrating in detail certain adjusting mechanism for varying the positions of the rolls with reference to one another; Fig. 7 1s a View showing a strip of metal in perspectlve after it has been operated upon by my improved machine; and Fig. 8 is a view showing a detail.

Referring to the drawings, 10 represents a frame, the form and arrangement of which is suitable for aflordingsupport to the elements hereinafter separately referred to. This frame is provided with suitable bearing wherein shafts 11, 12 are supported, which shafts are driven by means of a belt acting upon tight and loose pulleys 13, 14, through gears 15, 16 and 17, the latter engaging with a gear 18 upon the shaft 12, which gear in turn engages with a gear 19 upon the shaft '11.. The gears 18, 1%) being of the same diameter, it follows that the shafts 11, 12 are driven at equal speed.

Suitably secured to the shafts 11, 12, as by means of keys, as shown, are two rolls 20, 21 which rolls I designate as combined bending and slitting rolls, because of operations which they perform upon a strip of metal fed to the machine. These rolls have each a plurality of circumferentially extending series of teeth upon their periphery, the reference character 22 designating one of such series of teeth, while the reference character 23 designates another of said se- 'ries, as many such series of teeth being employed as may be found desirable, the greater the number of such series employed, the wider being the strip upon which the machine may operate, as will be understood.

The several series of teeth above referred to are arranged side by side, or oii'sct along the axis of the roll, and are also arranged in staggered relation, the highest point of the teeth 22 being opposite the spaces between the teeth 2?, as best shown in F g. 4 of the drawing.

The rolls above referred to are preferably formed of a plurality of parallel disks corresponding in number with the number of series of teeth employed. each of the disks being provided with teeth upon its periphery, and the several disks secured together with the teeth in staggered relation to thereby form a singleunitary roll. This feature of construction is best shown in Fig. 5, wherein the rolls are shown as made up of a central disk 24, and two side disks 25-25, the three being held together by means of 7 driven by means of the gears 18, 19, and not through theintermeshing teeth upon their periphery.

The reference character 27 designates a guide of any suitable form secured to the frame 10 of the machine, and serving to guide the strip of metal as the same is fed to and acted upon by the rolls.

Fig. 4 illustrates the operation of the rolls upon a strip of metal 28 fed thereto, and

Fig. 7 illustrates the finished product,

From Fig. 4 it will be understood that as the strip of metal 28 is fed to the rolls, the teeth 22 of the roll 20 cooperate with the teeth 23 of the roll 21 whereby a shearing action results as the teeth 23 pass into the spaces between two teeth 22 in line with one another, and that the teeth 23 force the portion of metal, thus out free, upward while the teeth 22 force another portion downward, the result being that in the finished product shown in Fig. 7, portions 29 of the original strip are out free and forced in one direction, while other portions 30 are forced in the opposite direction, the number of the curved strips or segments thus formed, being obviously dependent upon the number of series of teeth arranged side by side upon the bending and slitting rolls.

The three strips arranged side by side shown in Fig. 7 are not out free from one another along their entire length, as the portions 32 at the base of the teeth do not pass one another and produce a shearing action, from which it follows that the several strips are tied together at 33 by means of the unslitted portions of the strip.

' While my machine may be used to slit and bend or corrugate strips of metal previously cut to a predetermined length, I prefer to combine mechanism with the rolls so that the machine may operate upon the strip or bandofmetal of an indefinite length to not only bend and slit-the same, but to simultaneously weaken the strip transversely, so

that it may be readily broken into pieces of proper length for forming inserts for brake shoes. This mechanism preferably comprises a drum or roller 34, secured to a shaft 35, which shaft in turn is supported in bearings in a swinging supplemental frame 36,

this frame being pivoted to the main frame at 37 Secured to the frame 10 is a bracket 38, a tie rod 39 extending between the free end of the bracket 38 and the supplemental frame 36, which tie rods are provided with nuts so that the free end of the supplemental frame 36 may be raised and lowered. The drum 34 is provided with a recess at 40, in which is located a cutter 41 adjustable radially by means of a screw 42; which cutter is so arranged and adjusted as to nick or partially sever the strip along transverse lines, and cooperates with a fixed abutment, the same being preferably in the form of a circular disk 43 supported by means of a shaft 44, which shaft in turn is supported by bearings in the brackets38. The rotary disk 34, and consequently the cutter carried by it, is drivenfrom the shaft 11 by means of a sprocket chain 45 passing about sprocket wheels 46, 47. p

The reference character 48 designates a suitable guide for directing the strip of metal between the disks 34, 43, from which it passes through the guide 27 to the bending and slitting rolls, as above explained, the disk or drum 34 being driven at such speed that the cutter 41 thereof will engage the strip and cut it partially through, at uniform intervals, the length of strip between the successive transverse cuts being the length required to form an insert for a shoe; after passing through the rolls thestrips are easily broken at the points where the cutter has engaged the strip. The cutter may be adjusted by the screw 42 to secure a proper depth of cut or to cut the strip entirely through as will be understood.

In order to prevent the strip after passing between the rolls from winding upon either roll, means are provided for forcing it free from the teeth, .such stripping means being preferably of the form best shown in Fig. 2, wherein 49 and 50 designate two swinging plates, one end of each of which is pivotally supported by supports 51, 52, attached to the frame of the machine. The right-hand or free end of these plates is slotted, as shown at 53, whereby projecting arms 54, 55 are provided, the extremities of which engage the teeth of the side disks 25, and rise and fall as the rolls are driven. These arms, being in close contact with .the teeth, will enter between the end of the strip and the body of the roller, should the strip not readily leave the teeth, and be thereby forced from the teeth and prevented from winding upon the rolls. The two swinging plates 49, 50 are similar in form, and preferably arranged as-shown in Fig. 2, so that the extremity of one plate is in engagement with the highest point of a tooth at the time-that the extremity of the other plate is in the depression between two successive teeth, this arrangement insuring that the lates alwa s swin in the same direction-at between the plates, and which spring serves as a yieldable means for forcing the ends of the lates against the teeth.

hile in describing the preferred form of swinging plate, I have referred to it as having two projecting arms resting upon the two outer of three parallel disks, it will be obvious that the free end of said plate may have more or less than two arms, and that said arm or arms may rest upon any one of the several series of teeth with which the pe riphery of the roll is provided, so long as it retains its essential characteristics of a. pivotally supported swinging plate, the free end of which is in contact with and rides upon the projecting teeth of the combined bending and slitting roll. The oscillating plate will commonly extend the entire length of the roll whatever may be the number of disks which together form the roll, and a suflicient number of bearing arms will be provided at the free end of the plate to secure a satisfactory bearing surface between the roll upon which it rests and the extremities ofsaid arms.

I preferably provide means for adjusting one of the shafts 11, 12, in order to vary their distance apart, such an adjustment obviously varying the distance the teeth 22, 23, upon the two rolls, pass one another, and, consequently to a certain extent, varying the length of theslits produced by the shearing action above referred to. This adjusting mechanism is shown in detail in Fig.

6, and comprises wedges 56 beneath the journal boxes 57 in which the shaft 11 rotatcs, 58 being a screw engaging the top of the box 57. Such an adjusting mechanism as is shown in Fig. 6 is preferably provided at each of the bearings for the shaft 11, as shown in Fig. 1 and, upon the wedges 56 being loosened it will be obvious that the bearing 57 may be forced downward to thereby bring the rolls 20, 21 closeryto one another. The journal boxes 57 are held in place in housings formed in the mainframe as shown in dotted lines in Fig. 3.-

I-Iaving thus described my invention, I claim and desire to secure by Letters Patent:

1. In a device of the class described, two intermeshing combined bending and slitting rolls each comprising a plurality of disks in contact with one another and arranged side by side and secured together, and each of which disks has a series of teeth upon its periphery, the teeth of one of said disks 0ccupying positions opposite the spaces between the teeth of the disk next to it, and means fordiiving said rolls.

2. In a device of the class described, two intermeshing combined bending and slitting rolls each comprising a central disk having a series of teeth upon its periphery, and.

two side disks in contact with said central disk and each havin a similar series of teeth,"said three dis s being secured together in ositions such that two teeth one on each at said side disks are in line and occupy a position opposite the s ace be-' tween-two successive teeth of sai central disk, and two intermeshing driving gears corresponding in diameter with sald rolls and through wlnch the same aredriven'.

3. In a device of the class descrlbed, two

intermeshing combined bending" and slitting Y rolls each having a series of teeth upon its periphery; means for driving said rolls; and

mechanism operatively connected with said rolls and adapted to operate upon a strip of metal to weaken the same along transverse lines before the strip is operated upon by said rolls.

4. In a device of the class described, two intermeshing combined bending and slitting rolls each having a series of teeth upon its periphery; means for driving-said rolls; a rotary drumoperatively connected with said rolls and operated therefrom; a cutter carried by said drum and arranged to nick or partially sever along transverse lines a. strip of metal acted upon by said cutter;

and a rotary abutment adjacent said drum 7 and which abutment forms a support for the strip when the same is being acted upon by said cutter-the arrangement of the parts being such that the cutter aforesaid acts upon the strip of metal before the action thereupon of said bending and sl tting rolls.

5. In a device of the class described, two intermeshing combined bending and slitting rolls each having a series of teeth upon its periphery: two inter-meshing driving gears corresponding in diameter with said rolls and through which the same are driven; a rotary drum; gearing between said rolls and drum' through which said drum is driven in unison with said rolls; a cutter carried by said drum and arranged to nick or partially sever along transverse lines a strip of metal acted upon by said cutter; and a rotary abutment adjacent said drum and which abutment forms a support for a strip of metal when the same is being acted upon by said cutter the arrangement of the parts being such'that the cutter aforesaid acts upon the strip of metal before the action thereupon of said bending and slitting rolls.

6. In a device of the class described, two intermeshing combined bending and slitting rolls each having a series of teeth upon its periphery; means for driving said rolls; and nicking mechanism operatively connected with said rolls and adapted to opercutter carried b said drum, and an, abutment adjacent t ereto and which acts as a support for the strip when the same isbeing acted upon by said cutter.

other of said rolls; and a yieldable member 7 adapted to act simultaneously upon both said plates to thereby press their free ends into contact with said teeth, the arrangement of the parts being such that when the free end of one of sald plates rests upon the highest point of a tooth, the free end of the other plate rests in the space between two successive teeth.

8. In a device of the class described, two intermeshing combined bending and slitting rolls each comprising a central disk having a series of teeth upon its periphery, and two side disks having each a similar series of teeth, said three disks being secured together in positions such that two teeth one on each of said side disks are in line and occupy a position opposite the space between two successive teeth of said central disk; means for driving said rolls; a swinging plate one end of which is pivotally supported and the free end of which is slotted to provide two arms, the extremities of which rest one upon the teeth of each of said side disks; and a yieldable member adapted to act simultaneously upon both said plates to thereby press the extremities of said arms into contact with said teeth.

9. In a device of the class described, two intermeshing combined bending and slitting rolls each comprising a central disk having a series of teeth upon its periphery, and two side disks having each a similar series of teeth, said three disks being secured to- 1 answer g ether in positions such that two teeth one on each of said side disks are in line and occupy a position opposite the space between two successive teeth of said central disk; means for driving, said rolls; two swinging plates pivotally supported at two points spaced apart from one another and the free end of which plates are slotted to provide two arms, the extremities of which arms. rest, respectively, upon the teeth of the side disks of each of said rolls; and a yieldable member adapted'to act simultaneously upon both said plates to thereby press the extremities of said arms into contact with said side disks.

10. In a device of the class described, two

intermeshing combined bending and slitting rolls each comprising a luralit of disks in contact with one anot er an arranged side by side and secured together, andeach of which disks has a series of teeth upon its periphery, the teeth of one of said disks occupying positions opposite the space between the teeth of the disks next to it; and two intermeshing driving gears corresponding in di-ameter'with said rolls and through which the same are driven.

11. In a device of the class described, two

two swinging plates pivotally supported at two points'spaced a art from one another, and the free ends 0 which plates rest one upon the series of teeth of one of said rolls, and the other upon the series of teeth of the other of said rolls; and a yiel dable member adapted to act simultaneously u on both said plates to thereby press their ree ends into contact with said teeth. Y

Signed at Suifern in the county of Rockland and State of New York, this 17th day of October, A. D, 1911.

HARRY JONES.

Witnesses:

H. C. Wmcsa'r, F. J.-SEYM0UR.

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