US1027256A - Machine for cutting cards for automatic embroidering-machines. - Google Patents

Description

J. J. KNECHT.

MACHINE FOR CUTTING GARDS FOR AUTOMATIC EMBROIDERING MACHINES. APPLICATION FILED APR.28,.1911.

- 1,027,256. Patented May 21, 1912.

2 SHEETS-#:HEBT 1.

J. J. KNECHT.

MACHINE FOR CUTTING CARDS FOR AUTOMATIC EMBROIDERING MACHINES. APPLIGATION FILED APR. 28, 1911'.

' 1,027,256. v Pa1tentedMay 21,1912.

2 SHEETS'SHEET 2.

Zlilllt V COLUMBIA PLANOGRAPH co.,wAsHlNGTON, u. c.

I UNITED STATES PATENT OFFICE.

JOI-IANN JACOB KNECHT, F CHEMNITZ, GERMANY.

MACHINE FOR CUTTING CARDS FOR AUTOMATIC EMBROIDERING-MACHINES.

Specification of Letters Patent.

Application filed April 28, 1911.

- Patented May 21, 1912.

Serial No. 623,892.

' which the following is a specification.

. My invention relates to machines for cutting cards for automatic embroidering machines, the punches being drlven into cards guided between two parallel drums, and a primary object is to provlde a machlne of this type in which the punches are mounted displaced relatively to one another in two guide bars arranged parallel to one another between the drums.

In my improved machine the drums themselves rest in displaceable bearings and are connected with driving mechanism, the entire arrangement being such that when the machine is started working, the drums are alternately moved toward and away from the punches.

One illustrative embodiment of my invention and a modification thereof are represented by way of example in the accompanying drawing, wherein Figure 1 is an end elevatiompartly in section, showing my machine, Fig. 2 1s a top plan view, partly in horizontal sectlon, Flg. 3 is a detail plan view, partly in section and Fig. 4 is a diagrammatic View of the modlfication.

Referring firstly to Figs. 1 to 3, the numerals 3, 3 designate the two drums each having two pivots 15, 15, by means of whloh the drums are journaled in the guideb- locks 21, 21 slidable in the links 2, 2 which are I rigidly connected with the pedestals 22.

Fast on the pivots 15 are spur gears 23 meshing with the toothed racks. 16 attached at 24, 24 to the known pattern frame comprising the crossed slides 14, '14. These slides are traversed by the guide pin 30 to be guided on the pattern 31 to be punched. The shaft 1, on which two eccentrlcs 4 are secured, is journaledjin two pedestals 25.

1 Each of these eccentrics has two grooves 34,

35 (Fig. 3); the guide pin 36 of the twoarmed lever 5, 8 is slidable in the groove 34,

and the guide pin 37 of the two-armed lever 6,7 is slidable in the other groove 35. These two- armed levers 5, 8 and 6 7 are fulorumed in the frame of the machlne at 38, 39, respectively, and are pivotally connected to the rods 9, 10, respectively, which are pivotally connected with the guide blocks 21. The other eccentric 4 is connected in similar manner by levers and rods with the guide blocks 21, 21. The punches 11, 11 are displaced relatively to one another; the card or paper 17 guided at both sides by perforated matrices 18, 18, runs between the punches. The punches are driven int-o these matrices when the appertaining drums are moved toward the punches. The drums are perforated and are non-perforated only at those I places where a hole is to be made in the card. The punches are guided not only in the matrlces 18, 18, but also in the bars 26, 26. In order, when the drums return, to cause the punches also to return, I arrange the guides 27, 27 whose bent ends 28, 28 clasp the pivots 15, 15, respectively. The punches 11 extend through these guides 27, 27 and. are provided with the collars 29,against which the guides abut when the drums move backward and cause the punches to return into their original positions.

The above-described machine operates as follows :-As will be understood from Fig. 1, the pin 30 extending through the crossed slides 14, 14 is .guided over the pattern 31, whereby the slides 14, 14 are correspondingly raised and lowered and their rectilinear motion is transmitted by means of the racks 16 to the gears 23, whereby the drums are so rotated that a definite row of holes of each drum is placed in front of the punches.

driven and the motion of the eccentrics 4, 4,

is imparted in such manner by means of the levers and rods 5, 8, 9 and 6, 7, 10 to the drums that the pivots 15, 15 of the drums are shifted in the links 2, 2 toward the punches. When a non-perforated part of the wall of the drum abuts against the displaceable punch, the same is pushed by the drum toward the card and punctures the latter. A perforation or hole in the drum, on thecontrary, causes the punch to remain at rest. When the drums move in the opposite direction as the eccentrics continue to move, the guides 27 participating in the motion of the drums act against collars 29 of the punches and positively return the latter into their normal .position[ Besidesv other functions of the machine as, for example, festooning, perforating, punching, and so on. This is brought about by perforations generally provided at the two sides of the rows of embroidering holes. In order to bring these so-called special operations into the card, the drums have at each of the two ends a definite number of rows of holes which, however, are nowhere interrupted by nonperforated parts. Vhen the hole in question is to be made in the card for the special operation of the embroidering machine, the lever 19 or 20 in question is tilted, and a cover plate 12 is moved over the hole of the drum and drives the punch against the card.

Referring now to Fig. 4, the modified form here represented differs from that described above with reference to Figs. 1 to only by the punches not being returned, after the card has been punched, into their original positions by guides, but by springs 40 acting against collars 32 of the punches guided in the bars 18, 26.

I claim 1. In a machine for punching cards for automatic embroidering machines, the combination with the pattern frame, of two revoluble, parallel, perforated drums mounted horizontally displaceable toward and away from one another, means driven by the frame for rotating the drums, two pairs of guide bars arranged between and parallel to the drums, punches guided in each pair of guide bars adapted to be driven by nonperforated parts of the appertaining drum, the punches in one of said pairs of guide bars being displaced relatively to the punches in the other pair of guide bars, and means for alternately moving the drums toward and away from the punches and thereby driving the punches.

2. In a machine for punching cards for,

automatic embroidering machines, the combination with the pattern frame, of two revoluble, parallel, perforated drums mounted horizontally displaceable toward and away from one another, means driven by the frame for rotating the drums, two pairs of guide bars arranged between and parallel to the drums, punches guided in each pair of guide bars adapted to be driven by nonperforated parts of the appertaining drum, the punches in one of said pairs of guide bars being displaced relatively to the punches in the other pair of guide bars, means for alternately moving the drums toward and away from the punches and thereby driving the punches, and means for returning the punches into their normal position.

3. In a machine for punching cards for automatic embroidering machines, the combination with the pattern frame, of two revoluble, parallel, perforated drums mounted horizontally displaceable toward and away from one another, means driven by the frame for rotating the drums, two pairs of guide bars arranged between and parallel to the drums, punches, each having a collar, guided in each pair of guide bars adapted to be driven by non-perforated parts of the appertaining drum, the punches in one of said pairs of guide bars being displaced relatively to the punches in the other pair of guide bars, means for alternately moving the drums toward and away from the punches and thereby driving the punches, and perforated guides traversed by the punches, connected with the drums and adapted to coact with the collars of the punches and return the punches into their normal position.

4L. In a machine for punching cards for automatic embroidering machines, the com bination with the pattern frame, of two revoluble, parallel, perforated drums mounted horizontally displaceable toward and away from one another, means driven by the frame for rotating the drums, two pairs of guide bars arranged between and parallel to the drums, punches guided in each pair of guide bars adapted to be driven by non-perforated parts of the appertaining drum, the punches in one of said pairs of guide bars being displaced relatively to the punches in the other pair of guide bars, a cover plate adapted to be placed between each drum and the appertaining punches, and means for alternately moving the drums toward and away from the punches and thereby driving the punches.

5. In a machine for punching cards for automatic embroidering machines, the combination with the pattern frame, of two revoluble, parallel, perforated drums mounted horizontally displaceable toward and away from one another, means driven by the frame for rotating the drums, two pairs of guide bars arranged between and parallel to the drums, punches guided in each pair of guide bars adapted to be driven by non-perforated parts of the appertaining drum, the punches in one of said pairs of guide bars being displaced relatively to the punches in the other pair of guide bars, means for alternately moving the drums toward and away from the punches and thereby driving the punches, and means connected with the drums for positively returning the punches into .their normal position.

In testimony whereof, I affix my signature in the presence of two witnesses.

JOI-IANN JACOB KNECHT.

Witnesses:

LUDWIG ZIEGLER, WM. WASHINGTON BRUNSWICK.

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

Washington, D. C.

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