US2175725A

US2175725A - Die

Info

Publication number: US2175725A
Authority: US
Inventors: Arthur W Altvater
Original assignee: Individual
Current assignee: Individual
Priority date: 1937-03-01
Filing date: 1938-04-16
Publication date: 1939-10-10
Anticipated expiration: 1956-10-10

Description

Oct. 10, 1939.

A. W. ALTVATER DIE Original Filed March 1, 1937 Patented Oct. 10, 1 939 UNITED STATES PATENT OFFICE Original application March 1, 1937, Serial No. 128,314. Divided and this application April 16, 1938, Serial No. 202,508

1 Claim.

The present invention relates to shoe machines and more particularly to dies for a machine for performing a combined ink-marking and perforating operation.

For purposes of disclosure the various features of the present invention are illustrated and described as embodied in the model R machine manufactured by Western Supplies Company, under my prior Patents Nos. 1,834,919 and 1,938,678, which machine has a Wide use in the manufacture of shoes to perform many difierent operations.

Heretofore Western Supplies Company performed the combined ink-marking and perfor, rating operation upon the well-known Western cut-out machine,

The principal objects of the present invention are to produce a simple, inexpensive and efficient die for a combined ink-marking and perforating machine, particularly in the form of an attachment to the model B machine, and to simplify and improve the die, particularly, with respect to the retaining of the chips cut out of the work by the die and the discharge of the retained chips.

To the accomplishment of these objects, and such others as may appear hereinafter, the various features of the present invention reside in certain devices, combinations and arrangements of parts hereinafter described and then set forth broadly and in detail in the appended claim which possess advantages readily apparent to those skilled in the art.

The various features of the present invention will be readily understood from an inspection of the accompanying drawing illustrating the best form of the invention at present known to the inventor, in which-- Figure 1 is a detail view in perspective of sufiicient portions of the combined ink-marking and perforating machine to identify it;

Fig. 2 is a detail view partly in section in underside plan of the die, the die holder plate, the plunger plate and the means for securing these plates together;

Fig. 3 is a detail view in sectional elevation on the line 3-3, Fig. 2, and

Fig. 4 is a detail view in sectional elevation on the line 4--4, Fig. 2.

In the embodiment of the invention illustrated in the drawing, the frame of the machine is shown as including a base 9 (Fig. 1). Integrally formed with the base is an irregularly shaped boss I2 constituting the work supporting bed. An overhanging arm is integrally cast with the base 9 and includes the standard I3 (Fig. 1), and the overhanging head M. A die carrier in the form of a rectangular sliding block 28 is mounted in the lower part of the head in axial alignment with the operating plunger (not shown), as described more fully in my application Serial No. 128,314 of which this is a division. The connection between the plunger and the die carrier is generally the same in construction and mode of operation as the connection shown in my prior Patent No. 10 1,938,678, so that it is unnecessary to repeat that description.

The bottom face of the die carrier 28 is flat (Fig. to receive flatwise one face of a plate 35 provided with a pair of mutilated pins 3'! which enter vertical sockets 38 formed in the die carrier 28. The plate 36 is secured to the die carrier 28 by frusto-surfaces 39 (Fig. 2), which engage the mutilated portions of the pins 31, respectively. The surfaces 39 are formed on elongated pins 40 mounted to slide in horizontal openings 4| formed in the die carrier 28. Each surface 39 is held in engagement with the mutilated portion of one of the pins 3! by a spring 42 coiled about a reduced portion of the pin 40 and interposed between the pin 40 and a web 43 of the die carrier 28, a screw 44 carried by the end of the pin 4! acting by engagement with the web 43 as a stop for limiting the movement of the pin under the influence of the spring. Both pins 40 are connected to a common handle 45 for operating them to release the pins 31, there being a stop 46 on the die carrier 23 for limiting the inward movement of the handle. The pins 40, adjacent the surfaces 39, are provided with a cylindrical portion 4! of reduced diameter to permit the pins 31 to be readily withdrawn from the sockets 38 when the handle 45 is pushed inwardly.

The plate 36 is riveted to the reduced upper ends of four posts 43, the lower reduced ends of which pass through a die block 4.), a die rest plate 5!], and a die holding plate 5|, the lower ends of the posts 48 being riveted to the plate 5|. The dies held by the plate 5| comprise a cut-out die 52 and a plurality of perforating tubes 53. The ink-marking die is provided with two

continuous marking edges

54 and 55 formed upon a stripper plate 55 which is supported upon the lower ends of four posts 51 loosely mounted in the plates and 5|. Each of the posts El is held from drop- 50 ping out by a sleeve 58 to which the post is pinned, the sleeve 58 being mounted in a recess 59, formed in the block 49. The sleeve 58 is held normally in engagement with the plate 5.0 by a spring 60 coiled about the post 5'! and interposed between the stripper plate 56 and the bottom of a recess 6| formed in the plate 50.

The space between the plate 36 and the block 49 is enclosed by a rectangular sheet metal wall 62 the bottom of which is secured to the four edges of the block 49 and the top of which is secured to the two narrow edges of the plate 35. The wall 62 forms a chamber 63 for retaining the chips or pills formed by the cut-out die 52 and the perforating tubes which work up from the dies into the chamber 63 through inlet passages 64 and 65, respectively. If the stripper plate post 5! were mounted in the usual manner chips or pills in the chamber 63 would prevent the stripper plate 56 from returning to its original position after each ink-marking and perforating operation. By securing the posts 51 to the sleeves 58 and by mounting the sleeves 58 in the counterbored recesses 59, all dangers of the chips or pills interfering with the proper operation of the stripper plate is obviated.

The plate 36 is provided with an outlet 66 which is normally closed by the bottom of the die carrier 28. To clear the chamber 63 of chips the handle 45 is pressed inwardly to release the pins 31, thus permitting the plate 36 and the die structure assembled therewith to be withdrawn from the die carrier 28. After the plate 36 has been separated from the bottom of the die carrier 28, the die structure may be turned into an upside down position whereupon the chips or pills in the chamber 63 may be shaken out through the outlet 66.

What is claimed as new, is:

In a perforating machine, the combination with a die carrier engaging plate having a chip outlet, a die block plate having a chip inlet, and spacing members for maintaining the plates spaced apart, of a wall secured to the plates and surrounding the space therebetween forming a chip receptacle into which the chips pass from the chip inlet and out of which the chips are passed through the chip outlet.

ARTHUR W. ALTVATER.