US2544835A - Automatic bead making machine - Google Patents

Description

March 13, 1951 E. c. HEALY AUTOMATIC BEAD MAKING MACHINE 2 Sheets-Sheet 1 Filed March 23, 1948 Fig./.

Eugene 6. Hea/y INVENTOR.

E C. HEALY March 13, 1951 Patented Mar. 13, 1951 UNITED STATES PATENT OFFICE AUTOMATIC BEAD MAKING MACHINE Eugene C. Healy, Pawtucket, R. I.

Application March 23, 1948, Serial No. 16,542

4 Claims.

This invention relates to an automatic beading machine and the primary object of the invention is to provide a device that will quickly and efliciently provide a finished beaded strip within a short space of time.

Another object of the invention is to provide a simple structure capable of carrying out the process in a single step and one which is as efficient in operation as any of the more complicated devices.

Features of the invention concern a pair of oppositely arranged dies, means to rotate the said dies and compress them together while being rotated, and means to quickly separate the device when the formed beads are ready to be removed.

A further object of the invention will become readily apparent from the description which follows, taken together with the drawings, in which:

Figure 1 is a side elevation of the device of the invention;

Figure 2 is a top plan view of the device shown in Figure 1;

Figure 3 is a transverse sectional view taken along the line 3-3 of Figure 1;

Figure 4 is a horizontal sectional view of the invention, taken substantially along the line 44 of Figure 1;

Figure 5 is an enlarged fragmentary view of the beads in the process of formation;

Figure 6 is an enlarged sectional view of the beads being formed;

Figure 7 is an enlarged sectional view of the beads formed with the dies pressed together;

Figure 8 is a perspective view of a sample bead, and

Figure 9 is a modification of the die pressing means.

The device of the invention is indicated generally at H] and includes a flat support or table 12 supported on legs [4. Die block I6 is supported on table [2 by means of stanchions l8 containing lateral flanges 20 which are bolted to table l2 at 22. stanchions I8 integrally mount a pair of cam rings 24 which include cam members 26 spaced around the inner periphery thereof. Four members 26 are shown, though it is obvious that the total number may vary. (Figure 3.) Each cam ring 24 is made of two semi-annular rings 28 and 30, each terminating in opposed'flanges 32. Retained between flanges 32 is a coil spring 34 urging the cam rings apart. Hydraulic means, indicated at 36 and connecting to a suitable source of supply (not shown), is mounted on flanges 32 of each cam ring segment 28, to close the cam rings 26, in a manner to be more fully explained. Since the operation of the hydraulic means is conventional, it is believed that no further description of the operation thereof is necessary. Cam ring 24 is hinged at 31 to pivotally retain the segments 28 and 30 thereof together.

Die I6 consists of two semi-cylindrical members 38 and 40 in oppositely disposed relation. A plurality of bead forming recesses 42 are formed along the diametrical surfaces thereof. On each extremity of dies 38 and 40 are longitudinal counterbores 44 which engage with locking pins 46 extending transversely from end plates 48 and 54. Each end plate includes a laterally extending shaft 50, while plate 48 contains an integral pulley 52 mounted at the outer end of shaft 50. Both shafts are axially apertured at 56 along the lengths thereof and are supported by stanchions 60 bolted at 62 to table l2. A work stock 58 is inserted into the die through aperture 56.

Referring to Figure 3, die members 38 and 40 are transversely counterbored at 64, 66 in apertured alignment. A spring 68 is seated in bore 66 of die member 40 to urge outwardly a peg Ill located in and extending beyond bore 64.

A motor 12 is connected by means of pulley 14 on drive shaft 16 to pulley 52 by means of pulley belt 78.

From the above, the operation of the devicebecomes readily apparent. Die members 38 and 40 are normally urged apart by means of springs 68 and pegs 18. A bead-making stock is then inserted through aperture 56 and motor 12 is started to rotate the die 16 by engagement of pins 46 in bores 44. Cams 26 on cam ring 24 give a hammering action on die block l6 and pressure is simultaneously applied to hydraulic means 36 to compress spring 34 until the closed position shown in Figure '7 is attained. When the beads are completely formed, pressure on cam ring 24 is shut 01f and the rotation of die I6 is stopped.

In Figure 9 is illustrated a modification of the pressure means shown in Figure 3. Flanges 62 and 64 are similar to flange 32 shown in Figure 3. Flange 64 is apertured at 66 to receive therethrough a threaded bolt 68 pivoted at 10 in flange 62, retaining spring 12 between flanges 62, 64 in diverging relation. A wing nut 14 is rotated on bolt 68 to overcome the pressure of spring 12.

It is to be understood that the invention is not to be limited to the identical construction disclosed in the drawings, since it is obvious that various changes and modifications might be made therein without departing from the spirit and scope of the invention as defined in the claims.

Having described the claimed as new is:

1. In an automatic beading machine, a pair of oppositely disposed dies, means on the dies to form beads, springs secured in one die, peg means in the other die engaging said springs, a cam ring encircling said dies, said cam ring being split and'fhaying a hinge connection on one side and opposing terminal flanges on the side remote from said hinge connection, and compression means engaging said flanges for urging them together.

2. In an automatic beading machine, a pair of oppositely disposed dies, means on the dies to form beads, springs mounted in bores in oneof said dies, peg means in the other of said dies engaging and compressing said springs, a cam ring encircling said dies and comprising opposinvention, what is -i-ng {segments releasable, hinged together for moving the-segments -of maid-z cam ring toward each other, thereby. relcasablypressing said oppositely disposed dies together.

arrmachine :accordingto claim 1 wherein tion-of the cams on said cam ring acting directly on the dies as well as the actuation of the hydraulic clamp.

EUGENE C. HEALY.

REFERENCES CITED Thefollowing references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 16,87,464 Sullivan ,Nov. 26, 1901 7 319 Brooks"-.. -May 1 1921 1,161,521 Eastman June .3, 1930 2,202,125 Temple, Jr. May 28, 1940

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