US1471858A - Die press - Google Patents

Description

Get 23, 1923.

L. NELSON DIE PRESS Filed Aug. 19. 1921 2 Sheets-Sheet 1 T ial.

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M a I f l/V l/EIV TUH Louz'y Maw/2- ATTORNEY Oct. 23, 1923.

L. NELSON DIE PRESS Filed Aug. 19. 1921 2 Sheets-Sheet 2 ifatented 23, 1223.

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LOUIS NELSON, OF NEW YORK, N. "21, ASSIG-NOB TO CHARLES W. LIFSQHITZ, OF NEW YORK, N. Y.

DIE PRESS.

Application filed August 19, 1921.

To all whom it may concern:

Be it known that I, LOUIS NELSON, a citi zen of the United States, residing at New York city, in the borough and county of 5 Bronx and State of New York, have in vented certain new and useful Improve ments in Die Presses, of which the following is a specification.

This invention relates to die-presses and more particularly to such presses in which cloth-cutting dies are adapted to be used.

The invention has for its objects, among others, to increase the accuracy of the die cutting, to save time and labor, to eliminate the necessity for highly skilled labor in operating the press and to generally improve the parts and mechanism whereby the foregoing objects are attained.

The invention has for a further object to 20 render the operation ofdie-cutting cloth automatic.

Further objects will appear as the description proceeds.

In a preferred embodiment the invention consists in a transversely movable die-holder, means for moving the die-holder any selected predetermined distance transversely of the die-press, and means for returning the die-holder to the initial position.

Reference is made to the drawings for a specific description of a preferred embodi ment of the invention, in which-'- Figure 1 is a front elevation of my improved die-press, with a number of plies of cloth in position ready for cutting into neck bands;

Fig. 2 is a plan view of the die-press;

Fig. 3 is a sectional elevation taken on the line 3-3 of Fig. 4, looking in the direction of the arrows; and

Fig. 4. is a portion of the view shown in Fig. l on an enlarged scale.

In the drawings which are a part of this specification, in the various figures is shown a die-press 1 of a well-known design, provided with a vertically reciprocating press weight 2 also of a known construction. The die-press 1 has a solid metal bed 3 supported in and connecting the metallic side framework 4 and the metallic side frame-work 5. Extending transversely across and supported on the frame 4 and 5 is a top cross bar 6.

In order that the vertically reciprocating press-weight 2 may be accurately positioned Serial No. 493,720.

wi h reference to the bed 3 and the wooden platen 15 normally resting thereon, there are provided endless screws 7 and 8 adapted to raise and lower the press weight 2.

The links 9 and 10 are connected with suitable motive power for intermittently raising the press-weight 2. A form of power frequently used is the electric motor.

The sides 4 and 5 of the die-press 1 are provided respectively with vertical guides 11 and 12 and 13 and 14 so that the press weight 2 is truly guided upon each actuation of the press.

A heavy wooden platen 15 of a standard uniform thickness is adapted to movably rest upon the bed 3 and on this platen are laid the plies of cloth intended to be cut into neck bands or the like. Between ninety and one hundred plies of cloth may be cut at one operation.

Mounted on the crossbar 6 is a bracket 17 which supports a pulley 18 over which is passed the wire cable 51 to the end of which is attached the handle 52 for returning the die 25 to the initial position at the right, as will be hereinafter more particularly described.

The die-holder 19 is adapted to hold the die 25 in contact with the bottom of the press-weight 2 and is so constructed that it extends lengthwise across the face of the die press-weight 2 and is supported at the front on the transversely mounted spacing rod 20, which is mounted on the press-weight 2 by means of bearings attached to the pressweight. At the rear the die-holder 19 is similarly mounted on the similarly mounted rod 21. It is clear therefore that the dieholder is mounted for transverse movement across the lower face of the press-weight 2.

At the sides of the die-holder and extend ing the entire length thereof are grooves 22 and 23 which are adapted to receive the flange 26 of the die 25 on either side and so support the die 25 in contact with and beneath the press-weight 2. Set screws 24 provide means for locking the die 25 in the die-holder 19 in any desired position of longitudinal adjustment.

As has already been set forth above the die-holder 19 is 'mounted for transverse movement on the bars and 21. The die is secured in any desired position of transverse adjustment by means of the notches, 27, 2'? on the rod 20. A single row comprises equidistantly spaced notches 27, 27 directly related to the width of the die selected to cut out a particularly sized neck band. Usually all the cuttings with a die ofthe same size are continuous across the face of the press-weight 2.

Pivotally mounted at 33 on the die-holder 19 is a lever 31, to which is pivotally connected at a'link 28 on the lower end of which is a ratchet tooth 29 adapted to bite in the notches 27, 27 of the bar 20. A spring 32 tends to keep the ratchet tooth 29 in resilient contact with the notches 27 27.

,The oppositeend of the lever extends obliquely upwardly and the upper surface of the extension 34 is curved to provide a camming surface for engagement with the pins 38, 38 mounted in rows, equidistantly spaced and similarly spaced as the notches on the rod 20.

A horizontally mounted rod 37 is rotatably secured in hearings in the brackets 35 and 36 which are mounted on the uprights 11 and 13 respectively of the frame of the die-press. Rows of pins 38 are mounted in the rod 37 to correspond with the notches 27 in the rod 20, there being. a pin 38 rela .tively positioned with reference'to each notch 27.

Secured to the end of rod 20 is an indicator 39 adapted to be turned to a size-indication'scale on the rod bearing, and a set screw 41 mounted in the bearing is adapted to secure the rod 20 in the selected position. Secured to. the corresponding end of the rod 37 is an indicator 40 adapted to be turned to a size indication scale on the rod bearing,and a set screw 42 mounted in the bearing is adapted to secure the rod 37 in the selected position.

There may be any desired number of rows of notches on the rod 20 and a corresponding number of rows of pins on the rod 37, so that a corresponding number of differently sized cutting dies 25 may be used on a single die-press to cut neck bands or similar cloth forms of different sizes.

A wire cable 43 is attached by means of the ring 44 to the die-holder 19, passes over the horizontally mounted guide pulley 45 and the vertically mounted guide pulley 46 and is then attached to the cable 51 which passes over the guide pulley 18 mounted on the bracket 17 Similarly a wire cable 47 is attached by means of the ring 48 to the rear end of the die-holder 19, passes over the horizontally mounted guide pulley 49 and the vertically mounted guide pulley 50 and is then attached to the cable 51. These two cables 43 and 47 attached to the cable 51, together with the ring 52 provide means for moving the die 25 transversely to the right.

On the opposite. side of the die-holder 19 a cable 53 is attached thereto by means of the ring 54. The cable 53 passes over the hori- 53 and 57, and the cable 61, to which the I suspended weight 62 is attached tend constantly to move the die 25 transversely to the left whenever the tooth 29 is withdrawn from a notch 27. a

From the foregoing specific description it is believed that the mode of operation is now clear. A die 25is selected of the desired size. It is clamped in the die-holder 19 by means of the set screws 24. Indicators 39 and 40 are set and the set screws 41 and 42 tightened in position. The ring 52 is pulled down until the die 25 is at the extreme right. Next the plies of cloth to be cut designated by 16 are placed fiat upon the wooden platen 15, which is moved backwardly so that the front of the die is near, the front edges of the cloth to be cut.

The power is then connected with the diepress, the die falls and cuts'the cloth, and the die is again lifted. At the top of the stroke of the links '9 and 10 the cam lever 34 makes contact with a pin 38 and the ratchet tooth 29 is withdrawn from 'the notch 27. Forthwith the weight 62 pulls the dieholder 19 along the rods 20 and 21 until the spring-controlled ratchet tooth 29 enters the succeeding, notch 27 The weight 62issuch that the die 25 is in the properposition be fore the cutting edge comes in contact with the cloth 16. Y And so on until the die 25 has completed a transverse movement. The power is then cut off and the ring 52 em ployed to return the die to the extreme right position. The operation is'then repeated.

It is clear that the transverse cutting operation from the extreme right to the extreme left is automatic. It is also clear that the operation can easily be stopped by the machine operator at any time.

The practical use of this machine in the factory has resulted in great economies of time and labor, in the cutting of the cost of material by eliminating waste, and in more accurate work.

Realizing that many modifications maybe made by mechanics skilled in the art within the spirit and scope of my invention, I do not wish to be limited except as in the ap pended claims:

I claim:

1. In a die-press for cloth combination, a cutting-block, a die, a dieholder, means for moving the die-holder and and the like in I All (ill

the die toward and from the cutting-block, a press-weight, two cylindrical rods mounted on either side of said press-weight transversely of the die-press, and two arms secured on either side of said die-holder, said arms being provided with smooth cylindrical bores through which said arms may slide over said cylindrical rods whereby the die may be rigidly supported or moved transversely.

2. In a die-press for cloth and the lihe in combination, a cutting-block, a die, a dieholder, means for moving the die-holder and the die toward and from the cuttingbloclr, a press-weight, two cylindrical rods mounted on either side of said press-weight transversely of the die-press, two arms secured on either side of said die-holder, said being provided with smooth cylindrical bores through which said arms may slide over said cylindrical rods, whereby the die may be rigidly supported or moved transversely, one of said arms having a row of notches therein, and movable means carried by one of said arms and adapted to engage said notches.

3. In a die-press for cloth and the like in combination, a cutting-block, a die, a dieholder, means for moving the die-holder and the die toward and from the cutting block, a press-weight, two cylindrical rods mounted on either side of said pressweight transversely of the die-press, two arms secured on either side of the die-holder, said arms being provided with smooth cylindrical bores through which said arms may slide over said cylindrical rods whereby the die may be rigidly supported or moved transversely, one of said rods having a row of notches therein, a tooth carried by one or" said arms, and a lever for moving said tooth.

a. In a die-press for cloth and the like in combination, a cutting-block, a die, a dieholder, means for moving the die-holder and the die toward and from the cuttingblock, a press-weight, two cylindrical rods mounted on either side of said press-weight transversely of the die-press, two arms secured on either side of said die-holder, said arms being provided with smooth cylindrical bores through which said arms may slide over said cylindrical rods whereby the die may be rigidly supported or moved transversely, one of said rods having a row of notches therein, a tooth carried by one of said arms, a spring tending to keep said tooth in engagement with said rod and said row of notches, and a lever for moving said tooth out of engagement with said rod and said row of notches.

5. In a die-press for cloth and the like in combination, a cutting block, a die, a dieholder, means for moving the die-holder and the die toward and from the cuttingblock, a press-weight, two cylindrical reds mo nted on eith r e of said press-weight .isversely of the cue-press, two arms setransversely. one oi said rods having a row of notches therein, each of said notches having a surface perpendicular to the axis of the rod and a surface inclined thereto, a

tooth carried by one or said arms, a spring tending to keep said tooth in engagement with said rod and said row of notches, and a lever for moving said tooth out of engagement with said rod and said row of notches.

6. a die-press for cloth and the like in combination, a cutting-block, a die, a dieholder, means for moving the die-holder and the die toward and from the cutting-block, a press-wei ht, two cylindrical rods mount; ed on either side of the press-weight transversely of the die-press, two arms secured on either side of the die-holder, said arms being provided with smooth cylindrical bores through which said arms may slide over said cylindrical rods whereby the die may be rigidly supported or moved transisely, a weight suspended at one side of said die-press, a pulley mounted on said diepress, and a cord attached to said weight passed over said pulley, and secured to said die-holder whereby said die-holder is moved automatically in one direction.

7' In a die-press for cloth' and the like in combination, a cutting-block, a die, a dieholder, means for moving the die-holder and th die toward and from the cuttingbloclr, pressweight, two cylindrical rods mounted on either side or the press-weight transversely of the die-press, two arms secured on either side of the die-holder, said arms being provided with smooth cylindrical bores through which said arms may slide over said'cylindrical rods whereby the (he may be rigidly supported or moved transversely, a weight suspended at one side of said die-press, a pulley mounted on said die-press, a cord attached to said weight, passed over said pulley, and secured to said die-holder whereby said die-holder is moved automatically in one direction, a pulley on the opposite side of said die-press, a cord passed over 'said pulley, said cord being attached to said die-holder, and a handle on the end of said cord,

8. In a die-press adapted for cutting cloth and the like, in combination a dieholder, a die press weight a. rod horizontally mounted on the die-press-weight, a row of notches on said rod, a rod horizontally mounted on the frame ofthe die-press, pins mounted on said rod, ratchet todth carried by the die-holder adapted to engage with said notches, and {L lever adapted to rezase said tooth from said notches upon engagement with the pins of said rod.

9. In adie press for cloth and the like and in combination, a cutting block, a die, a die holder, 'mcans for moving-the die holder and die toward and away from the block, a press Weight, cylindrical rods mounted on either side of the press Weight transversely of the die press, arms secured on either side of the die holder, the said arms being provided with bores through which said arms may shde on the said rods on one of the said arms, a spring tending to keep the tooth in engagement With'the s' d rod and the row of notches therein,

kind a lever for moving sfiid toothout oi en- ,cf. Qement with notches therein.

In testimony ture.

the rod and The row of whereof it afii my signa- LOUIS NELSON. [11. 5.

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