US2911865A

US2911865A - Apparatus for making formed wire

Info

Publication number: US2911865A
Application number: US634757A
Authority: US
Inventors: Alan E Brickman
Original assignee: United States Steel Corp
Current assignee: United States Steel Corp
Priority date: 1957-01-17
Filing date: 1957-01-17
Publication date: 1959-11-10
Anticipated expiration: 1976-11-10

Description

Nov. 10, 1959 A. E. BRlCKMAN APPARATUS FOR MAKING FORMED WIRE 5 Sheets-Sheet 1 Filed Jan. 1'7, 1957 il i.

W 8 TM 0 N w EM V/ A mm A 5 M A L A w m Nov. 10, 1959 A. E. BRICKMAN APPARATUS FOR MAKING FORMED WIRE 3 Sheets-Sheet .2

Filed Jan. 17, 1957 his Attorney.

Nov. 10, 1959 A. E. BRICKMAN 2,911,865

APPARATUS FOR MAKING FORMED WIRE Filed Jan. 17, 1957 3 Sheets-Sheet 5 //Vl/ENTOR ALA/V E. BR/C/(MA/V,

his Attorney.

United States Patent APPARATUS FOR MAKING FORMED WIRE Alan E. Brickman, Williamsville, N.Y., assignor to United States Steel Corporation, a c'orporation of New Jersey Application January 17, 1957, Serial No. 634,757

1 Claim. (CI. 80-30) This invention relates to an apparatus for making formed wire and is a continuation-in-part of my copending application, Serial No. 334,333, filed January 30,

1953 now Patent No. 2,780,860 issued Feb. 12, 1957. My copending application claims a special shaped wire having pimples or cars formed thereon. Proper spacing of the pimples requires special care and/ or machinery.

It is therefore an object of my invention to provide a machine for forming pinched ears on a rod or wire at desired intervals.

This and other objects will be more apparent after referring to the following specification and attached drawings, in which:

Figure 1 is an elevation of a rod with ears formed thereon;

Figure 2 is a view taken on the line IIII of Figure 1;

Figure 3 is a side elevation of the machine of my invention;

Figure 4 is a top plan view of the machine of Figure Figure 5 is an end elevation of the machine of Figures 3 and 4;

Figure 6 is an end view of a guide used in my machine;

Figure 7 is a view taken on the line VIIVII of Figure 6;

Figure 8 is a view, similar to Figure '6, showing a modification; and

Figure 9 is a view taken on the line IX-IX of Figure 8.

Referring more particularly to the drawings, the reference numeral 2 indicates the wire or rod formed in the machine of my invention. Rod 2 is provided with spaced apart pinched ears or pimples 4 which are preferably provided with an arcuate portion 6 extending from the wire. In transverse section the pimples 4 are rectangular in shape and have a portion extending below the main surface of the wire. The machine of my invention includes a pair of rotating rolls 8 mounted on parrallel shafts 10. A plurality of spaced apart radial holes 12 are provided in the rolls 8. Pins 14 are placed in the holes 12 with their inner ends bearing against the shaft 10. Each of the rolls 8 has a groove 16 around its periphery into which extends a portion of the outer ends of pins 14. A cap screw 18 is threaded into the end of each shaft 10. A cup-shaped rim edge clamping washer 20 surrounds the cap screw 18 and extends into a groove 24 in the roll 8. Head 26 of cap screw 18 bears against the clamp 20 to force it against the pins 14 to clamp them in place and restrain them from rotation. The rolls 8 are so positioned on their respective shafts that the pins 14 of one roll are in alignment with the pins 14 of the other roll when the pins reach the plane common to the axes of the two rolls. A space 28 is provided between the ends of the pins when in this position. The shafts are mounted in a housing 30 and carry .

gears

32 and 34. The lower shaft 10 is provided with a shaft extension 36 which is driven from a motor 38. A guide 40 is mounted on the housing 30 "ice at the exit end of the rolls 8. The guide 40 has a key shaped opening 42 extending axially therethrough. The opening 42 has a key hole spline 44. The diameter of the main portion of the opening 42 is sufficient to receive the rod 2 and the size of the key hole spline 44 is sufficient to receive pinched ears 4. A collar 46 is provided on one end of the bushing 40 and has fiat sides 48 adapted to be received in a wrench. Bushing 40 is received in a clamp 50 which prevents rotation thereof, and in combination with the collar 46 prevents axial movement thereof. The guide 40 is so positioned that keyhole spline 44 is in alignment with the space 28. Straightening

rolls

52, 54 and 56 are also mounted on housing 30. The

rolls

52 and 54 are provided with semicircular grooves 58 and 60 for receiving the rod 2. The roll 56 is located on the opposite side of the rod from the

rolls

52 and 54 and is provided with a groove 62 having an aperture 64 for receiving the pinched ears 4.

The operation of my device is as follows:

A round rod is fed into the bite of the rolls 8 and as the rolls rotate the wire is fed therebetween with the pressure exerted by the pins 14 forming the ears 4 thereon. As the formed rod passes from the rolls 8 it is held from rotation by engagement of the ears 4 in the keyhole spline 44. Thus, the ears are all in alignment. Means 66 are provided for moving the roll 56 transversely of the path of travel of the rod 2. The position of the roll 56 is so adjusted that the rod 2 will be straightened as it passes between the

rolls

52, 54 and 56.

In some instances such as when making reinforcing rods for use in concrete it is desired to have the ears 4 arranged spirally around the rod. For this purpose a guide 40' is used in which a keyhole spline 44 is arranged spirally as shown in Figures 8 and 9. Thus, as the rod 2 emerges from the bite of rolls 8 with the ears 4 thereon it will be rotated by engagement of the ears 4 in the keyhole spline 44'.

In order to regulate the grip of the rolls 8 on the rod 2 the rolls may be mounted for adjustment toward and away from each other in the usual manner of feed rolls. Also, if desired, the rolls 8 may be resiliently urged together to compensate for slight variations in rod size as is common in feed roll mountings.

While two embodiments of my invention are shown and described it will be apparent that other adaptations and modifications may be made without departing from the scope of the following claim.

I claim:

Apparatus for making substantially round rods having pinched ears spaced therealong comprising a pair of mating rolls having substantially semi-circular grooves therein extending around their periphery for receiving an unformed rod, the radius of each groove being substantially equal to the radius of said rod, each of said rolls having a plurality of radial holes therein spaced around its periphery communicating with the associated groove, all of said radial holes in each roll being to the same side of the plane perpendicular to the axis of the roll and passing through the center of said groove, a pin in each of said holes extending only part way into its associated groove, means mounting said rolls on parallel axes in cooperative relation so that the pins of both rolls lie on the same side of a plane through the center of the peripheral roll pass so formed and perpendicular to the roll axes, and means correlating the rotation of said rolls so that a pin in one roll will be in axial alignment with a pin in the other roll when the pins rotate into the roll pass so that the axes of the pins are in the plane through the axes of the rolls, the ends of said pins being spaced apart when in said last named plane.

(References on following page) References Cited in the file of this patent UNITED STATES PATENTS Purdy May 2 6, 1891 Sc 7 M y 23, 1893 5 Blonde ll July 5, 1904 Latham-et al Alig. 2 9 1905 Brdoks et a1 N69. 30, 1915 Heinle Mai; 24, 192 1 Gotham Nov. 2 5, 1930 10 Dewalld June 12, 1934 4 Pleines Dec. 8, 1956 Greulich Aug. 10, 1937 Kinder Oct. 12, 1937 Campbell Feb. 27, 1940 Brickman Mar. 31, 1953 Brickman Feb. 12, 1957 Hess Nov. 5, 1957 FOREIGN PATENTS Germany Mar. 23, 1914