US2860684A - Adjustable die - Google Patents

Description

H. PALOUIAN ADJUSTABLE DIE Nov. 18, 1958 2 Sheets-Sheet 1 Filed Nov. 26, 1954 IN V EN TOR.

H. PALOUIAN ADJUSTABLE DIE Nov. 18, 1958 2 Sheets-Sheet 2 Filed Nov. 26, 1954 mi 9 o 5 a f 7 m 2 J 1 31/1 w w p/ w o w 0 9 p J 5/ m h x "\LWHQ D h m 4 6 m 0% x 7 L J C 9 a J J x INVENTOR. 1664/6 P41 OU/A/V United States Patent We ADJUSTABLE DIE Haig Palouian, Philadelphia, Pa.

Application November 26, 1954, Serial No. 471,204

2 Claims. (Cl. 153-2) The present invention relates to dies and is concerned primarily with the idea of providing a die that is adjustable, in the first instance to operate on work of a particular character with dimensional changes and, in the second instance, adjustable to accommodate work of a different character.

To the end of explaining the exact nature of the ob jects and advantages of this invention it is noted that the die is designed for use in cutting out and marking by means of indentations blanks of sheet metal that are subsequently folded into slips that are used in effecting joints or connections between conduits that are used in airconditioning apparatus. Such slips are generally of two types. They are either bar slips or flat slips. Under practical conditions the bar slips are of three different sizes while the flat slip is of one size. The die of this invention is adjustable to accommodate either the three sizes of the bar slip or the single size of the fiat slip.

As above mentioned, the slips are folded from blanks of sheet metal. Each of these blanks must be fashioned to leave a tongue projecting from one end thereof and also must be appropriately marked by means of indentations to define the line on which they are to be folded.

An important object of this invention is to provide an adjustable die which, on a single stroke, will cut out the end portion to leave a tongue thereat and, at the same time, make the indentations at the appropriate points.

More in detail, the invention has as an object the provision of a die that consists essentially of two complemental halves which are relatively adjustable. Under practical conditions one half of this die is fixed while the other is movable so as to provide for variations in the dimension of the work. Moreover, the fixed half includes certain stop elements which are removable and indenting tools which are removable so as to accommodate varia tions in the character of the slips which are formed thereby.

In view of the necessity of providing indentations at both ends of the blank and further in view of the fact that only one end of the blank is cut out, another object is to provide a die, of the character indicated, which by a single adjustment is adapted to provide indentations at one end without any cutting operation which would leave the tongue. This object. is accomplished by providing a removable stop that is placed in an effective position when the end opposite to that formed with the tongue is Patented. Nov. 18,

adjustable to make the indentations alone.

being indented. This stop prevents the blank from reach- For a full and more complete understanding of the invention reference may be had to the following descrip tion and accompanying drawings wherein:

Figure 1 is a plan view of a bar slip, the blank of which is cut out and indented by the die of this invention.

Figure 2 is an enlarged detailed view in perspective showing the construction of a side wall of the bar slip of Figure 1. p

Figure 3 is a top plan View of one end of a blank after it has been cut and indented by the die of this invention so as to be later folded into the bar slip of Figure 1.

Figure 4 is a plan view similar to Figure 3 showing a blank of a different size which ultimately will be folded into a bar slip of a different dimension.

Figure 5 is another plan view similar to Figure 3 and 4 of still another size blank.

Figure 6 is a top plan view of a flat slip.

Figure 7 is an enlarged detailed perspective showing the wall construction of the slip of Figure 6.

Figure 8 is a plan view of one end of the blank after it has been cut and indented and prior to being folded into the flat slip construction.

Figure 9 is a top plan view of the die of this invention.

Figure 10 is a transverse vertical section taken about on the plane represented by the line 10-10 of Figure 9; and

Figure 11 is a detailed longitudinal vertical section taken about on the plane represented by the line 11--11 of Figure 10.

Referring now to the drawings and first more particularly to Figures 1 to 8 inclusive, the exact nature of the bar slips will be described.

Figures 1 and 2 disclose .a bar slip of rectangular formation having four walls. Each of these walls comprises a main body portion 10, an inner flange 11, an outer flange 12 and an outwardly extending bar made up of plies 13 and 14 that are joined by a bend 15. As disclosed in Figure .1, one end of one of the bars includes a tongue 16 that is inserted in the space between the plies 13 and 14 of the other end. This tongue is represented in the blank which is illustrated in Figure 3. This view discloses .a blank B that consists of a piece of sheet metal, one end of which must be cut out to leave the tongue 16 and which end must also be appropriately marked, as by the indentations 17, 18, 19 and 20, to define the lines on which the blank is folded to achieve the construction illustrated in Figures 1 and 2.

Purely by way of illustration it is noted that these bar slips are made in the following sizes: 1 /2 inches; 1%: inches or 1 inch. Figure 3 is representative of the blank B which is fashioned into the 1 /2 inch bar slip. Figure 4 illustrates a blank B which is used in making the 1% inch bar slip. In this view the indentations 17, 18 and 19 remain in their same relative positions. However, the tongue 21 is narrower than the tongue 16 of Figure 3 and the indentation 20 is closer to the indentation 19 than in Figure 3.

Figure 5 discloses a blank B that is used in making the one-inch bar slip. Here again, the indentations 17, 18 and 19 have their same relative positions but the tongue 22 is narrower and the indentation 20 is closer to the indentation 19.

Figures 6 and 7 illustrate a flat slip also of rectangular formation comprising four walls, each including a main body portion 23, an inner flange 24, an outer flange 25 and a downwardly turned lip 26. The blank from which this flat slip is formed is illustrated in Figure 8 and is designated at B This blank includes a tongue 27 that is inserted between the lip 26 and flange 25 in the finished construction and has three indentations 28, 29 and30 that are used as guides in folding the blank into the constfiietidh of Figures 6 and 7.

Referring now more particularly to Figures 9 to 11 inclusive, the die of this invention is shown as comprisiiig a'bedsl which ma be sup orted by an apprepriate supporting rr'i ea'ns. Extending back from this 'bed 3 1 an appropriate distance is a work "supporting table 32, which 'for all efieet'ive -purposes constitutes a continuation of the bed'31. A support 33 repositioned beneath the bed 31 and presents a guide rail 34 "that is spaced from the front end of the bed 31. Mounted on this guide -ail 34 are the two complemental die parts D and D While the die assembly D maybe movable or adjustable on the rail 34, for the purposes of 'this speeificfaftien it will be ref rred to as the fixed die ele- The die. assembly D 'is intended to be movable relative to the die assein'bly and, as shown in Figure 11, the U-s'haped structure 35 which receives the rail 34 has a set screw 36 which may be used to lock the die assembly Din anadjusted position.

Each of the die assemblies D and 'D includes an end wall 37 which in turn carries supporting and guiding structures, as indicated at 38, where the die elements reciprocate therein. Each die assembly D and D comprises a shear 39 which, on the downward stroke, cut out the end portions of the blank to leave the tongue. Also movable with the shear 39 is a'bar 40. As shown in Figures 9 and 10 the bar 40 of the die assembly D carries an indenting tool 41 which is screw threaded to render it adjustable and which is held in an adjusted position by 'a lock nut 42.

p The bar 40 with the die assembly D is formed with tour threaded openings 43, 44, 45 and 46. Each of these openings 'isadapted to receive a threaded indenting tool, corresponding to the indenting tool 41 at each of which .is held in an adjusted position by a lock nut 42.

Each of the indenting tools has a pointed end and the bed 31 is formed with correspondingly shaped depressions 47 'for accommodating these ends after they have indented the metal. The indenting tools '41 etc. bend the inetalinto depressions 47 so as to form dimples thereon.

At one side edge the bed 31 is provided with a narrow wall or stop 48 against which the edge of the blank'abu'ts as the blank is positioned.

As shown more clearly in Figure 9 the bed '31 and table 32 carry-a pair of removable stops 49 and '0, the purpose of which will later be specified. The 'bed 31 is also provided with the removable stop at 51 Which is removed when the shears 39 are to be effective, but which is positioned when the shears are to be rendered ineffective.

I Operation Assuming that any of the blanks B, B or B are to be cut and punched by the die. These blanks are those for the bar "slip. Under this condition the'stops 49 and 50 are removed so that the edge of the blank will abut-the stop -wall 48. Also there is no indenting tool in the threaded socket 45. There is an indenting tool at each of the sockets 43, 44 and 46 and the indenting tool 41 is,'of course, ineifective position. The stop 51 is also removed because the shears 39 are to be rendered eifective. The set screw 36 is now loosened and the die a'ssembly -D moved along the rail 34 to adjust the entire machine to the particular dimension of the bar slip that is to be made. It is the position of this die assembly relative to the die assembly D which determines the width of the tongue 16 and the distance between the indentations 20' and '19 in the blank. After-the desired adjustment has been made'the set screw 36 is again tightened.

The die may now be operated to simultaneously "cut out the end of the blank to leave any of the tongues 16, 21;or 27.,asthe case may be, and form the indentations'17. 18, 19 and 20 at appropriate points in the blank.

After a desired number of the blanks have had one end but and indented in this manner, the "stop 51 "may be positioned and the other end of the blank is presented for the indenting operation. The stop 51 prevents this end of the blank from coming beneath the shears so that all that happens on this operation is the forming of indentations corresponding to those at 17, 18, 19 and 20.

When the blank B for the flat slip is to be indented the stops 49 and 50 are positioned and an indenting tool inserted in the socket 45. The indenting tool in the socket 46 may be removed'or leftlin position, but in any event, it is rendered ineffective because the blank is positioned agaih'stthe steps 49mm 50 and the 'indenting'teol in the socket 46 is beyond this edge. The indenting tool in the socket 44 is also removed and rendered ineffective. The die D is adjusted relative to the assembly D as above indicated, and locked in its required position after which a single operation of the die simultaneously cuts out the endito leave the tongue 27 and form the indentations 28, 29 and 30. The other end of the blank B may be inde'n'ted by again positioning the stop 51.

From the foregoing it is apparent that the die of this invention may be adjusted to form any of the three sizes of bar slips or to form a flat slip. Moreover, the adjustments are comparatively easy and simple and are accomplished simply by replacing or removing certain steps or indenting 'todl's and adjusting the die assembly "D relative'to'the die assembly 'D While a preferred specific embodiment of the invention is 'hereinbefore set forth, it is to be clearly understood that the invention is not to be limited to the 'exact mechanisms, constructions and devices illustrated and described because various modifications of these details may be'provided in putting the invention into practic 'w'ithin'the purview of the appended claims.

What is claimed is:

1. In an adjustable die, a bed, a pair of spaced die assemblies each having a cutter movable toward and away from said bed, said cutters being spaced from each other and having cutting 'edges lying ina common plane, an indenting tool mounted on one of said die assemblies, a plurality of indenting tools mountedo'n the other of said die assemblies, all of said indenting tools being movable toward and away from said bed concurrently with the corresponding movement of said cutters, all of said indenting tools'lyiug in a common plane parallel to the plane of said cutting edges, and removable side stops extending upwardly from said bed and lying in a plane normal to the planes of said cutting edges and indenting tools and intersecting the plane of said indenting tools at a point between the mounting of the indenting tool on said last-mentioned die "assembly most remote from said first die assembly and one of the mountings of one of the other indenting tools of said last-mentioned die assembly.

2. In an adjustable die, a bed, a pair of spaced die assemblies each having a cutter-movable toward and away from said 'bed, said cutters being spaced from each other and having cutting edges lying in a common plane, an indenting tool mounted on one of said die assemblies, a plurality of indenting tools mounted on the other of said die assemblies, all of said indenting tools being movable toward and away from said bed concurrently with the corresponding movement of said cutters, all of said indenting tools lying in a common plane parallel to the plane of said cutting edges, removable side stops extending upwardly from said bed and lying in aplane normal to the planes of said cutting edges and indenting tools and intersecting the plane of said indenting "tools at a point between the mounting of the indenting tool on said last-mentioned die assembly most remote from said first die assembly and oneof the mountings of one of the other indenting tools of said last-mentioned -die assembly, and a fixed-stop wallcarried bysaid bed :at one side thereof, projecting above the plane of the top 5 of said bed, and lying in a plane parallel to that of said removable stops.

References Cited in the file of this patent UNITED STATES PATENTS 356,735 Stetson Jan. 25, 1887 471,084 Hopkin Mar. 15, 1892 720,896 Cornelius Feb. 17, 1903 6 Crossley Nov. 10, McKee Apr. 17, Morse June 23, Bosworth Apr. 10, Wales Feb. 14, Lentine et al. Aug. 22, Williams Dec. 13, Million Mar. 28, Williams Mar. 15,

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