US1513720A - Lock-washer-making machine - Google Patents

Description

Oct. 28 1924.

A. G. SAILER LOCK WASHER MAKING MACHINE Filed.Jul v 5, 1925 2 Sheets-Sheet l gnua'u fez A. a. Jazz Oct. 28 .1924. 1,513.720

A. G. SAILER LOCK WASHER MAKING MACHINE Filed July 5, 1923 2 Sheets-Sheet. 2

gwue n I'Oft tiff-Axum Patented Get. 28, 1924.

ARTHUR G. SAILER, OF MASSILLON, OHIO, ASSIGNOB TO THE SAILER 86 MELVIN MANUFACTURING COMPANY, OF MASSILLON, OHIO, A CORPORATION OE OHIO.

LOCK-VASEER-MAKING- MACHINE.

Application filed July 5,

To all whom it may concern.-

Be it known that I, ARTHUR G. SAIL-ER, a citizen of the United States, residing at Massillon, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Lock- Washer-h laking Machines, of which the following is a specification.

The invention relates to machines for forming sprin lock washers, of the type including a coil forming device, means for feeding a wire thereto and means for cutting the coiled bar at predetermined intervals to form the washers.

It is common practice in forming loclz washers to provide a machine having a ratchet device for intermittently feeding'the wire to the coiling mechanism, but consid erable difficulty is experienced as the ratchet feed is not always positive, the ratchet often slipping and failing to feed the proper amount of wire with each operation. Attempts have also been made to provide a continuous feeding mechanism for the wire,

' but in practical use these have not proven satisfactory.

The objects of the invention are to provide a feeding device coupled to the mech anism which operates the shearing mechanism and arranged to positively feed the wire into the coiling mechanism a sufficient distance to form one washer and to automatically stop the feeding as the shear severs each washer from the coiled rod, and to provide means for quickly and easily adjusting the mechanism to receive feed rollers of different diameters in order to form washers of various sizes upon the machine.

The above and other objects may be attained by constructing the machine in the manner illustrated in the accompanying drawings, in whichhigure 1 is a side elevation of a lock washer making machine embodying the invention;

Fig. 2, a vertical sectional view through the bearings of the shear operating mechanism and feed mechanism showing the adjustability of the latter;

Fig. 3, a sectional View showing the gearing by means of which the shear driving mechanism operates continuously to intermittently operate the feed mechanism;

Fig. 4, a fragmentary perspective view showing the coil forming means;

1323. Serial No. 649,443.

l ig. 5, a detail perspective view of the coil forming die;

Fig. 6, a fragmentary detail View showing The machine comprises the frame 1 having a drive shaft 2 journaled in bearings 3, a drive pulley 4 being mounted upon the drive shaft to receive power from any suitable source.

A housing 5 is ournaled upon the bearing 3 for a slight rocking motion and the bearing 6 located at the other end of the housing is fixed to move therewith, being supported upon the upright 7 provided at its lower end with the slot 8, an adjusting bolt 9 carried by the stationary lug 10 being located through said slot.

The feed shaft 11 is journaled in the hearing 6, ball bearings 12 and 13 being preferably provided for the shafts 11 and 2 respectively. The feed roller 14 is fixed upon the feed shaft 11, a pinion 15 upon said shaft meshing with the pinion 16 mounted upon the shaft of the feed roll 17 which is journaled in a vertically adjustable bearing 18.

A disk 19 is fixed upon the shaft 2 within the housing 5 and provided with a shoul" dered disk portion 20 having the con cavities 21 in diametrically opposite sides of its pe riphery, a stud 22 being carried upon the disk 19 at substantially the center of each of these concavities.

A star wheel 23 is fixed upon the feed roll shaft 11 and provided with the radial grooves 24 arranged to be engaged by the studs 22 for intermittently rotating the'feed shaft by a continuous rotation of the shaft 2. The parts are so proportioned that a quarter revolution of the feed shaft will feed the wire shown at 25 forward into the coiling mechanism the proper distance to form a single washer.

The wire is fed forward between the feed rolls through a groove 26 in the guide block 27 to the coiling mechanism, which may be of any usual construction, and as shown, comprises the coiling block 27 and mandrel 28. The coili block is provided in its forward end with a semi-circular forming socket 29.

As the wire is thrust into the socket, it is coiled around the mandrel and a series of spiral coils, as shown at 30, are produced upon the mandrel. Any suitable form of shear may be provided for severing the coiled wire at periodic intervals to form the washers.

As shown in the drawings, the shear 31 is arranged to reciprocate vertically in the guides 32, being operated by the lever 33 having the slot 34 engaging the stud 35 upon the upper end of the shear, the lever being pivoted intermediate its extremities at 36 and being operated from the shaft 2 in any suitable manner as by the sliding rod 37 pivoted at 38 to the free end of the lever and engaging the cam 39 upon the shaft 2, this cam having the diametrically opposite cam lugs 4-0 arranged to cause two complete operations of the shear with every single rotation of the shaft 2.

In the operation of the machine, it will be seen that each quarter rotation of the shaft 11 feeds the wire 25 into the coiling mechanism a sufficient distance to form one complete coil and the shaft 11 makes one-half of a rotation with each complete rotation of the shaft 2, thus feeding sufficient material to the coiling mechanism to produce two washers which are severed from the coil with each complete revolution of the shaft 2, the feeding of the wire being intern'iittently stopped during the shearing operation.

The shaft 2 thus rotates continuously and is directly connected through the gearing to the shaft 11, which is positively operated intermittently thereby to produce the desired result of stopping the feeding of the wire during the shearing operation, as it has been found that it is impractical to feed the wire continuously during the shearing.

By providing the vertical adjustment of the shaft 11, it will be seen that different sizes of feed rolls may be readily attached to the machine for feeding wires at the proper speed to form washers of different sizes.

When it is desired to remove the feed roll it to place a different sized feed roll upon the shaft 11, the bolt 9 is loosened to permit rocking movement of the housing'5 upon the shaft 2, and after the new feed roll is attached to the shaft 11, the housing is rocked into proper position to bring the new feed roll into operative relation with the large feed roll 17, after which the bolt 9 is tightened.

It will be seen that this movement of the housing will swing the bearing bracket 18 out of vertical position. The bolts 41 are then loosened and the bracket 18 swung into vertical position, bringing the shaft of the feed roll 17 directly over the shaft 11 of the lower feed roll, after which the bolts a l are tightened and the machine is in position to be operated.

I claim:

1. A machine for making lock washers including coil forming mechanism for coiling a wire, feed rolls for feeding a wire thereto, a shear for severing washers from the coiled wire, a driven shaft for operating the shear, a shaft upon which one of the feed rolls is fixed, a disk upon the feed roll shaft pro vided with four peripheral recesses and a rotating element upon the driven shaft having a projection adapted to successively enter the recesses at each revolution of the disk, so as to intermittently rotate the feed rolls, to make four intermittent quarter revolutions of the feed rolls with each complete revolution of the feed roll shaft.

2. A machine for making lock washers including coil forming mechanism for coiling a wire, feed rolls for feeding a wire thereto, a shear for severing washers from the coiled wire, a drivenshaft for operating the shear, a disk upon the driven shaft,a pin upon the disk, and a star wheel upon one of the feed roll shafts provided with radial grooves for engagement with said pin, whereby the feed rolls are intermittently operated between operations of the shear.

3. A machine for making lock washers including coil forming mechanism for coiling a wire, feed rolls for feeding a wire thereto, a shear for severing washers from the coiled wire, a driven shaft for operating the shear, means upon the driven shaft for intermittently operating the feed rolls between the operations of the shear, and means for adjusting the shaft of one feed roll in an arc concentric with the driven shaft.

&. A machine for making lock washers including coil forming mechanism for coiling a wire, feed rolls for feet ing a wire thereto, a shear fors'evering washers from the coilec wire, a driven shaft for operating the shear, means upon the driven shaft for intermittently operating the feed rolls between the operations of the shear, means for adjusting the shaft of one feed roll in an arc concentric with the driven shaft, and means for ad justing the shaft of the other feed roll in an arc concentric with the first named feed roll shaft to permit the placing of feed rolls of various diameters upon the first named feed roll shaft.

In testimony that I claim the above, I have hereunto subscribed my name.

ARTHUR G. SAILER.

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