US1118421A - Machine for cutting and shaping articles from sheet-stock. - Google Patents

Description

W. F. HUTOHINSON.

MACHINE FOR CUTTING AND SHAPING'ARTICLES FROM SHEET STOCK.

APPLICATION FILED JAN.G.1913.

Patented Nov. 24, 1914.

ambium/sec ml: NDNRIS PETERS C0. PHnw-LnnlL, WASHINGTON. D, L

' W. F. HUTGHINSON.

MACHINE FOR CUTTING AND SHAPING ARTICLES FROM SHEET STOCK.

APPLICATION FILED JAN. 6. 1913.

1, 1 1 8,42 1 Patented Nov. 24, 1914.

2 SHEETS-SHEET 2.

vvbtuw o o: awuentom,

if 35 6 r PWWM 62212215 THE NORRIS PETERS 60.. PHuTo LIYHO WILSHINVO rON D c win s'ra'rns ATENT @FFTQE.

WILLIAM F. HUTCI-IINSON, OF VAIJATIE, NEW YORK, ASSIGNOR TO VENEER PRODUCTS CORPORATION, OIE VALATIE, NEW YORK. A CORPORATION OF NEW YORK.

MACHINE FOR CUTTING AND. SHAPING ARTICLES .IEROM SHEET-STOCK.

Specification of Letters Patent.

Patented Nov. 24, 1914.

Application filed. January 6, 1913. Serial No. 740.293.

To all whom it may concern:

' Be it known that LVVILLIAM F. .l-lirronm- SON, of Valatie, Columbia county, New York, have invented a new and useful Iniprovernent in Machines for Cutting and Shaping Articles from Sheet-Stock, of which the following is a full, clear, and exact de scription.

My invention relates to improvements in machines for. cutting toothpicks, small tags, skewers, or other small articles, from sheet stock, and shaping the articles by a. single stroke of the knife which cuts oil the stock.

The object of my invention is to produce a machine which will cut articles from sheet stock more rapidly than they are usually produced, and which will make a very much better article than is made by the ordinary machine.

In carrying out the invention, the sheet stock is preferably taken from a roll or long strip, the width of which corresponds to the length of the article to be shaped, and this is fed to a recessed drum, the recesses serving to receive the stock, and the drum carries forms between the recesses corresponding in certain dimensions to the din'lensions and shape of the article to be cut, and as the drum rotates, a cut-off knife fits over the form and so while cutting oil the stock, also shapes it.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar reference characters indicate corresponding parts in all the views.

Figure 1 is a plan view of a form of the apparatus embodying my invention. Fig. 2 is a diagrammatic view showing the maunor in which the cut-off knife can be arranged. Fig. 3 is a detail showing one of the forms which is carried by the rotary drum. Fig. t shows a different design of the form carried by the drum. Figr is a detail showing a portion of the drum,

cross-head, and cut-oil knife, and ilhistrates how the knife or knives fit around a form on the drum. Fig. 6 is a cross section on the line 6-6 of Fig. Fig. 7 is a sectional elevation of the machine shown in Fig. 1, Fig.8 is a cross section through a strip of stock shaped suitably for forming toothpicks, and Fig. 9 is a broken detail view showing the stock after it has passed the feed rollers.

I have illustrated and shall describe a machine suitable for shaping tootlilpicks, but it will be readily understood that the ma.- chine can be made to cut other smallarticles from sheet stock, and give them the necessary shape.

The machine has a suitable frame 10 which can be of any approved design and picks in one direction when they are cut off.

into toothpick widths, and if desired they can be beveled from both sides instead of from one, as shown at 15" in F ig. 8. As above noted, the stock is thinned on the edges, and to produce a nice toothpick it is necessary to shape the edge portions of each individual toothpick as it is cut from the stock 15, so as to give it the proper shape in the directions represented at right angles to the cross cut of the stock, that is to the upper and lower sides of the stock. Toprovide for this, the forms 14 are shaped to produccthis other dimension or design for the toothpick.

As shown in Fig. 3, the form 1 1- shows an elevation which represents a radial line from the center of the drum 13, and one end is rounded oil as shown at 1 t while the other end is pointed as shown at 1 1-. Therefore the form shown in Fig. 3 will represent the form of a toothpick when viewed in one elevation, while as shown in Fig. et, the form i l will show another form of toothpick. As illustrated in Fig. 3, the toothpick would have a rounded end 14land a pointed end 14, while as shown in Fig. 4- the toothpick would have two pointed ends 14. The veneer or sheet stock 15 is preferably taken from a roll which canhe arranged on a spindle 16, as in Fig. 7. When this is fed between two of the forms let, a reciprocating knife cuts oil' the stock, and at the same time theknife is shaped to shear around the form 14, thus forming a toothpick, or other article corresponding in shape to the shape of the form. The knife would be shaped as shown diagrammatically in Fig. 2, and would be preferably made in three parts, the part 17 cutting the whole length of the form 1%, and to the center of the two opposite extremities, while the knives 18 and 19 would out along the under and inner side of the form and would shear across the parts which project from the ends of the drum 13. The arrangement is shown in Fig. 5, where the knives are very clearly illustrated as sliding or shearing across the form. The knives can be carried by a cross-head 20, and I have not shown in detail the man er of attaching them to the cross-head, as there is no novelty in this arrangement, neither is there any novelty claimed in the manner of working the crosshead. I have illustrated it in Fig. 7 as moving in a suitable slide-way, and as having a pitman connection 21 at the ends, with cranks on the disks 22 which are carried by the shaft 23, this being arranged parallel with the shaft .11, and the cross-head and the knives 17, 1S and 19 which it carries, would move tangential to the surface of the drum 13.

The drum 13 turns in the direction of the arrow in Fig. 7, and as the cross head 20 reciprocates, the cut-0d knife, which might be a single knife as shown diagrammatically in Fig. 2, but which would preferably be made in several parts as in Fig. 5, shears across the adjacent form 1 1 and forms the article, which as illustrated would be a toothpick.

To provide for ejecting the toothpicks from between the forms 14:, any suitable device can be used, and I have illustrated a common expedient, in which the drum 13 is provided with parallel surface grooves 24, in which fit ejecting rods 25 which project tangentially outward, and are secured to a suitable support as As the drum rotates, the shaped articles lying between the forms 14, are carried outward by the ejecting rods 25.

It is essential to have the stock fed properly to the drum and between the forms, and to this end I provide a table 27 as shown in Fig. 7, and the stock is fed forward over the table by feed rollers 28 which impinge upon it, and which force it toward the drum 13. In forming many kinds of devices, and espe' cially toothpicks, it is desirable to have the body portion rounded, or nearly circular in cross section, and to this end I make the feed rollers 28 corrugated as at 29, the corrugations being essentially semi-circular in section, and with the ed e portions of the opposed feed rollers coming opposite each other. Thus as they feed forward the stock, they nearly sever it, and the walls of the corrugations compress the stock and give it a shape essentially circular in cross section. The space between the edge portions of the corrugations 29 corresponds to the width of the form 14 and 14 and the main portion of the cut-off knife 17 is arranged to register with the incisions made by the corrugated feed rollers 29. The feed rollers are carried by shafts 30, and any suitable means can be used for drivingthe feed rollers and the shaft 23. As illustrated, I have shown a train of gearing 31 connecting the several shafts with the main driving shaft 11, but this driving scheme can be anything usual to mechanism of this kind.

It will be seen from the foregoing description that I take properly shaped stock, as in Fig. 8, and by passing it through the machine cut it off into nicely formed articles which are complete when ejected from the drum 13.

I claim 1. A machine of the kind described comprising a rotary drum carrying peripheral forms spaced apart and shaped like the articles to be formed, means for feeding sheet stock between the several forms, and means for cutting off the stock around the outer edge and end portions of the several forms.

2. A machine of the kind described comprising a rotatable drum having peripheral forms spaced apart and projecting from the drum ends, the forms being shaped like the articles to be cut, means for feeding sheet stock between the several forms, and a cutoff knife arranged to shear across and around the ends of the individual forms.

3. A machine of the kind described comprising a rotatable drum having peripheral forms on the surface and projecting from the drum ends, said forms being shaped like the articles to be out, feed rollers corrugated to form cutting edges to feed sheet stock to the drum and between the forms, and a cutoff knife registering with the incisions made by the feed rollers and shaped to fit. around the end portions of the form.

4. A machine of the kind described comprising a rotary drum, peripheral forms on the surface of the drum and projectingfrom the ends thereof, said forms being shaped like the articles to be cut, means for feeding sheet stock between the forms, and a reciprocating knife arranged tangential to the drums and shaped to shear across the outer edges of the several forms and to fit around the end portions of the said forms.

WILLIAM F. HUTCHINSON.

Witnesses WARREN B. HuToHmsoN. ARTHUR G. DANNELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. C."

Images