US1242206A

US1242206A - Sheet-metal-working machine.

Info

Publication number: US1242206A
Application number: US5475715A
Authority: US
Inventors: Peter Kruse
Original assignee: EW Bliss Co Inc
Current assignee: EW Bliss Co Inc
Priority date: 1915-10-08
Filing date: 1915-10-08
Publication date: 1917-10-09
Anticipated expiration: 1934-10-09

Description

Patented Oct. 9,1917.

2 SHEET$SHEET I P. KRUSE.

SHEET METAL womuus MACHINE.

APPLICATION FILED OCT-(M1915.

rlllih M 1 INVENTOR By Attorneys, akaau .Qwv J P. KRUSE.

SHEET METAL WORKING MACHINE. APPUCATION FILED OCT. B. 1915.

1,242,206. Patented 00th 9,1917.

2 SHEETS-SHEET 2- A 6% 1 INVENTOR WITNESSES: %!4

4 9 g T By A liomeys,

UNITED STATES PATENT OFFICE.

PETER KRUSE, 0F BROOKLYN, NEW YORK, ASSIGNOR T0 E. W. BLISS COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF WEST VIRGINIA.

SHEET'METAL-WORKING MACHINE.

Application fled October 8, 1915.

To all whom it may concern:

Be it known that I, PETER Know, a citizen of the United States of America, residing in the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Sheet-Metal-Working Machines, of which the following is a specification.

This invention relates to sheet metal working machines, and aims to provide certain improvements therein.

Improved means for positioning and feeding sheets of metal from one position to another through the machine, are provided by the present invention.

Other features of improvement will be hereinafter referred to.

An embodiment of the invention is shown in the accompanying drawings.

The invention has been shown as incorporated in a machine for making can bodies. The invention may, however, be otherwise embodied and otherwise applied.

In said drawings,-

Fi re 1 is a top plan view of so much of a ody making machine as is necessary to illustrate the invention;

Fig. 2 is a side elevation of the construe-- tion shown in Fig. 1, with parts in section;

Figs. 3 and 4 are respectively a vertical sectional View, and a top plan view, illustrating in detail one embodiment of the improved feeding means;

Figs. 5 and 6 are like views of another embodiment of the improved feeding means;

Fig. 7 shows an end elevation of the machine.

In said drawings, the letter A designates a suitable table or bench forming the frame of the machine, the general construction of the machine being similar to that described in my U. S. Patent No. 1,081,050, dated December 9, 1913.

B, B are a plurality of feed bars working in suitable guide-ways in the top face of the table A, preferably attached to a slide block or piece C, and adapted to be reciprocated by a suitable means, as for instance, a train of links and levers b, b, 6 connected to a crank pin 6 upon a disk b mounted upon a main drive-shaft D. The feed bars B. B are provided with a plurality of feed fingers, certain or all of which, as for instance the fingers E, may be formed so as to act to confine, in one direction or in the Specification of Letters Patent.

Patented Oct. 9, 1917.

Serial No. 54,757.

other, perpendicularly of the sheet, or in both directions, the edges or margins of the sheets of material X with which they are brought into contact. These feed fingers E may grip the edges of the sheets, as in my aforesaid Patent No. 1,081,050, but preferably do not grip the edges of the sheet, but simply confine the upper or lower, or the upper and lower edge or marginal portions,

the feed fingers E being formed with a slot or recess e for the purpose. However, one or other of the parts e of the fingers E on either side of the recess a may be omitted, where it is desired or necessary to confine the edge portions of the sheets in but one perpendicular direction. Other feed fingers E may be provided, if desired, as for instance, where the sheets of metal are to be fed to an idle position.

The arms E are pivoted upon the feed bars B, as at e, and are adapted to be depressed against the pressure of a spring a as they move rearwardly, being so depressed by the sheets of metal with which they come in contact in moving rearwardly. A stop a limits the extent of the projection of the feed finger E above the upper face of the feed bars.

F F and F designate a plurality of mechanisms by which the sheets of metal are worked upon. In the construction illustrated, the mechanism F is a notching mechanism for forming notches in the sides of the sheets of metal, the mechanism F is a flanging mechanism by which flanges or hooks are formed on the notched sides of the sheets, and F is a body forming mechanism comprisin a horn G around which the sheets are cut and the ends interlocked and joined in well-known manner. The function of the feed mechanism is to feed the sheets of metal to an exact position with relation to these several mechanisms F, F and F, it being essential to the formation of a can that the sheets be operated upon at precise points by the several mechanisms, and that the ends of the sheets and the notches therein shall properly match when wrapped around the horn and the ends joined.

Sheets of metal are fed to the machine in any suitable manner (by hand if desired), and are carried forward by the feed fingers upon successive reciprocation of the feed bars B, B. An automatic feed I is shown, the construction of which is fully dmcribed in Patent No. 1,081,050 aforesaid. As the feed bars B. B move forward, the sheets of metal X are carried forward In the feed fingers beyond stops H H and a mounted upon a fixed part of the machine. The sheets of metal are preferably moved slightly beyond the stops, and, during the rearward movement of the feed fingers are moved rearwardly against the stops H H or H by suitable means, as by the means P, illustrated in detail in Figs. 3 and 4, or the means Q. illustrated in detail in Figs. 5 and 6.

As shown in detail in Figs. 3 and 4, the means P may comprise a bar or blade p having a cam face 19 thereon. The bar 7) is adapted to reciprocate vertically, and to this end it may convenientl be mounted upon a reciprocating part 0 the notching mechanism F, as illustrated at p. The means P act to push the sheet rcarwardly against the stops H Ordinary feed finers E are shown as bein employed in conunction with the means though the feed fingers with a recess or notch therein may be employed.

As shown in detail in Figs. 5 and 6, the means Q may comprise a spring-pressed rod g. The rod may be mounted 'in an adjustable sleeve 9, by which the position of the end of the rod with relation to the adjacent edge of the sheet may be adjusted. The end of the rod may also be threaded and provided with a nut g by means of which the tension of the spring 9 may be adjusted.

The means Q. may be mounted in suitable brackets g attached to the frame of the machine.

The feed fingers E on their forward movement preferably act to feed the sheets beyond the stops H and against the ends of the rods 9, the spring g" being compressed. As the feed fingers E move into engagement with the sheet of metal, the edge portions of the sheets are received in the recesses e of the feed fingers and are confined above and below by the feed fingers. As the feed fingers E move rearwardly, the rods 9 are pressed rearwardly by the springs and move the sheet of metal rearwardly against the stops H", the sheets being held in the recess e in the fingers E. The sheet is guided in its rearward movement, and prevented from being deflected or bent in such manner as not to be stopped by the stop H or to be stopped in the proper position. The feed fingers E with the recesses e therein also in practice act to prevent transverse displacement of the sheet, the width of the recess being such that any transverse ressure on the sheet would cause slight bending or buckling, which would cause the sheet to bind against the walls of the recess.

The construction wherein the sheets of metal are pushed rearwardl against stops, while the edge portions of t e sheet during the rearward movement are embraced, con fined or supported by the feed fingers, is of special importance where the ends of the blank are unsupported, as for instance, in the osition where the sheets are acted upon by t c horn.

The horn G is preferably adapted to be raised and lowered in conjunction with the feeding of the sheets, as described in the atent hereinbefore referred to, the horn bemg mounted upon a slide 9 which is raised by another slide f, the slide f being actuated by a lever f connected to a rod f, the rod being connected to a crank lever f actuated by a cam f on the shaft D. The slide g is pressed down by a spring 9 carried in a part 9' attached to a fixed part of the machine. The raisin of the horn G allows the feedingiand positioning movements of the sheets to take place without interference by the horn. When the sheets are fed beneath the horn, an abutment g is preferably provided, which acts as a support when the sheets are being fed beneath the horn, and also acts as an abutment against which the sheets may be clamped by the horn.

Strips b" are preferably provided, which are adapted to bear upon the upper sides of the sheets X with slight friction, the friction, however, not being sufiicient to prevent the feeding or positioning movements of the sheets.

The operation of the device is as follows:The sheets of metal are engaged by the feed fingers E or E, the adjacent marginal portions of the sheets fittin within the recesses e of the feed fingers The sheets are carried forward beyond, and referably slightly beyond, the stops H 2 or H. The sheets are then acted upon by the means P or Q, and pushed rearwardly against the stops. The means Q act to push the sheet rearwardly while the edge or marginal portions are still in the recesses e in the feed fingers E, the edges of the sheet being thereby prevented from being deflected up or down while movin against the sto s. The horn G is preferab? raised while 51c sheets are being fed and positioned under the same. When in position with reference to the mechanisms F, F and F, the sheets are suitably acted upon by said mechanisms.

The inventive ideas are capable of receivmg other embodiments than those specifica 1y illustrated and described.

The embodiment shown in Figs. 3 and 4 is set forth and claimed in a divisional application Serial No. 89,047, filed April 5, 1916.

What is claimed is 1. In sheet metal working machines, the combination of a relatively narrow support, a reciprocatory feed means adapted to feed a sheet of metal over said support with its edges projecting into space on each side of said support, said reciprocatory feed means comprising feed fingers having means thereon for supporting the projecting portions of said sheet when fed over said narrow support to prevent sa stops for preventing back movement 0 said sheet, and means independent of said feed fingers for setting said sheet back against said back stop.

2. In sheet metal working machines, the combination of a relatively narrow support, a reciprocatory feed means adapted to feed a sheet of metal over said support with its edges projecting into space on each side of said support, said reciprocatory feed means comprising feed fingers having means thereon for supporting the projecting por tions of said sheet when fed over said narrow support to prevent sag, stops for preventing back movement of said sheet, and means independent of said feed fingers for setting said sheet back against said back stop, said back-setting means comprising a spring-pressed rod acting in the line of advance of the sheet.

3. In sheet metal working machines, the combination of a relatively narrow support, a reciprocatory feed means adapted to feed a sheet of metal over said support with its edges projecting into space on each side of said support, said reciprocatory feed means comprising feed fingers having recessed portions for supporting the projecting portions of said sheet when fed over said narrow support to prevent sag, stops for preventing back movement of said sheet, and means independent of said feed fingers for setting said sheet back against said back stop.

4:. In sheet metal Working machines, the combination of a relatively narrow support, a reciprocatory feed means adapted to feed a sheet of metal over said support with its edges projecting into space on each side of said support, said reciprocatory feed means comprising feed fingers having recessed por tions for supporting the projecting portions of said sheet when fed over said narrow support to prevent sag, stops for preventing back movement of said sheet, and means independent of said feed fingers for setting said sheet back against said back stop, said back-setting means comprising a springpressed rod acting in the line of advance of the sheet.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

PETER KRUSE.

Witnesses:

AUcUsT LOKAN, FREDK C. FLADD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Yatents, Washington, D. G.