US1259968A

US1259968A - Apparatus for controlling the operation of shears.

Info

Publication number: US1259968A
Authority: US
Inventors: Victor E Edwards
Original assignee: Morgan Construction Co
Current assignee: Siemens Industry Inc
Priority date: 1914-04-15
Filing date: 1914-04-15
Publication date: 1918-03-19
Anticipated expiration: 1935-03-19

Description

. v. .E. EDWARDS.-

APPARATUS FOR CONTROLLING THE OPERATION OF SHEARS.

APPLICATION FILED APII. l5 I9I'4.

NITED STATES PATENT OFFICE.

- vIcToR E. EDWARDS, OF wORCEsTER, MA'ssACH-UsETTs, nssrenoR To MORGAN CONSTRUCTION COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORA- TION OF MASSACHUSETTS.

APPARATUS FOR CONTROLLING THE OPERATION OF S HEARS.

' To all whom it may concern:

Be it known that I, VICTOR E. EDWARDS, a citizen of the United States, residing at Worcester, in the county of Worcester and Commonwealth of Massachusetts, have invented a new and useful Improvement in an Apparatus for Controlling the Operation of Shears, of which the following description, taken in connection with the accom-' panying drawings, is a specification.

The present invention relates to a mechanism for efi'ecting the intermittent operation of a shear of the type employed in rolling mills to cut the finished product as it- A second ob ect conslsts 1n the provision of means instantly adjustable for varying the length of the billets cut by said shear in order to insure the production, from any given bloom, of billets of a uniform len h, between twenty-seven and thirty feet, without the formation of a short; and a third object is to provide means for readily re: 'moving the crop end of the rolled product prior to the division of the same into billets,

without waste of materiaL. v

In the accompanying drawings, I Figure 1 is a diagrammatic side elevation of the apparatus forming one embodiment" of my invention, certain parts being shown -1n section.

. Fig. 2 is a top plan view of a portion of the apparatusshown in Fig. 1. Like reference characters are used to designate like parts in the different figures. Referring to-Fig- 1'. there is shown at 1, 1 the last three sets of reducing rolls of a rolling mill, with a billet or .bloom A passing therethrou'ghin the direction of the arrow, in the process of reduction toa finished bar .or rod B. The finished productB is conducted from the final fimshin roll 1- over a seriesiof conveyer rolls 2. n the" space Specification of Letters Patent.

. tion within a suitable casing havin Patented Mar. 19, 1918.

Application filed April 15,1914. Serial No. 832,056.

between two conveyer rolls 2 and preferably close to the last finishing roll 1, there is erected a flying shear 3 1n the path of the moving bar, adapted when actuated, to shear the bar vpassin between its cutting blades. Any form 0% flying shear may be employed; I have illustrated diagrammatically, for example, the type of flying shear disclosed in Letters Patent No. 505,512,

- granted to me September 26, 1893, but it is to be understood that the present invention is not limited to the use of a flying shear of this type.

I have also shown at 4 a steam or com pressed air cylinder, the latter containing a piston connected to a reciprocating cross head 5, which is connected by

rods

6, 6, to the reciprocating shear blade of the flying shear, all as substantially shown and described in my aforesaid Letters Patent. The

exhaust of pressure medium from the under side Ofthe piston in said cylinder 4 effects the downward and*forward movement of the shear 3 to operate upon the moving bar; the restoration of pressure below said piston effects the return of the shear to its initial tion upon the barB.

I have indicated diagrammatically at 7, valve mechanism adapted to control the exhaust and inflow of pressure medium from. and to the under side of the piston in order to operate the shear as above described. I prefer to employ valve mechanism such as is disclosed in Letters Patent No; 787 ,32 1,

granted to Elbert H. Carroll, April 11, 1905, although it is obvious that any other valve mechanism adapted to give the same results position in preparation for the next operawithrespect to the movement of the piston within the cylinder 4 may be employed within the scope of my invention. p

The valve mechanism '2' involves the pro-' vision. of'a valve 8, adapted for reciproclat e necessary passages \in connection\wit the supply and exhaust means of thepressure medium. Movement of this valve 8 in one direction effects the exhaust of steam from the lower side of the piston and results in the downward movement of the latter to actuat the shear;'the subsequent return of the valve 8 to its, initial position restores the pressure below the piston,"moving the same upwardly intoyits initial -position, all as substantially shown and described in the aforesaid Letters Patent to Carroll. The specific details of the above described apparatus form no part of my present invention, the construction and operation of the same being well known in rolling mill therefrom to a suitable base member or bracket 12, in which its other end finds bear- 1ng.

as shown, although it is obvious that said shaft can be connected to any of the other reducing rolls, or to any part of the mechanism employed for rotating the same, without departing from the spirit of my invention. A frictionwheel 13 is carried on the outer end of the shaft 9, said wheel having a spline connection 14 with said shaft, whereby it is constrained to rotate theredisk '15, suitably journaled at 16 in the bracket 12. A shipper lever 17, slidable within a bearing fermed in said bracket 12, engages a groove'18 formed in the hub of the friction wheel 13. The other end of the shipper lever 17 is pivotally connected to a link 19 which is pivotally secured to an inat 21 to the bracket 12. The handle of the lever 20 is provided witha latch 22, adapted'to'be selectively engaged with the several notches in a stationary segmental plate 23,

whereby to vary the longitudinal position" of the friction wheel 13 on the. shaft 9. It

will be apparent that the speed at which the disk 15 is rotated is greater or less as determined by the movement of the wheel 13 ioward or from the axis of rotation, of said isk. I e

The disk 15 carries on its upper face a revolution of thedisk passes between and electrically connects two contact pieces 25,

25, supported on a stationary plate 26 above the-disk, to complete an electrical circuit which includes a battery 27 and a solenold 28. The energization of the solenoid draws its core 29 upward, carrying'with it valve 8, by reason of being connected to the stem 30 of said valve. Almost immediately there- 7 after the solenoid is deenergized by the breaking of the circuit whereby the valve returns by gravity to its initial position,

v I prefer to operatively connect the shaft, 9 with the last finishing roll of the series,-

With, but is capable of longitudinal move-'- ment thereon. The periphery of the friction I wheel 13 is in frictional engagement with the under 'side'of a horizontally disposed termediate point of a hand lever 20, pivoted finished product. 7

spring contact brush 24, which, upon eachactuating the return of the shear to the position shown in Fig. 1.

The disk 15 is provided on its periphery with an outwardly projecting shoulder or lug 31, which is adapted to be engaged by the end of a lever 32, pivoted at 33, when it is desired ,to arrest the rotation of the disk. In the full line position of the lever 32 in Fig. l, the end of said lever lies in the path of the lug 31, rendering the rotation of the wheel 13 inefiective; when the lever 32 is swung into the dotted line position, the disk 15 is rotated by the frictional contact of the wheel 13, causing the shear 3 to operate upon the moving bar at intervals predetermined by a previous adjustment of the hand lever 20.

As shown in Fig. 2, the lug 31 is disposed slightly in advance of the spring contact brush 24, in the direction of rotation of the disk. In the operation of the apparatus, as the forward end of the rolled product begins to pass between the blades of the shear 3 the operator can judge just how much of the same should be removed as a crop end. At the proper moment,'the lever 32 is moved into its dotted line position,- and immediately thereafter the actuation of the. shear is efiected to remove the crop end. The subsequent operations of the shear 3, in order to divide the finished product into pieces of equal length, take place 6nce for each revolution of thedisk 15, as previously described. The length of the pieces into which the product is cut is determined by the adjustment of the lever 20. Obviously, since the speed of movement of the finished product .varies as the peripheral speed of the last finishing roll, the several adjustments of the lever 20 will always result in the production, in the case of each adjustment, of pieces of equal length, irrespective of variations in the speed of the last finishing roll. The same holds true when the shaft 9 is driven from any of the other reducing rolls, or from any part of the mechanism employed for actuating the same, the rotationof which bears a fixed relation L to the amount of forward movement of the I claim,

1. The combination with feeding rolls, of a shear for cutting the product.- delivered from said rolls, rotating means having a speed always in predetermined relation to the speed of said rolls for controllingthe operations of said shear, and means for interposing a stop in the path of saidrotating means.

2. The combination, with feeding rolls, of

a shear for cutting the product delivered from said rolls, means for actuating said shear, means having a speed in predetermined relation to the speed of movement of said product for operating said actuating shear, a

means at predetermined intervals, and means for varying ating means.

3. The combination with feeding rolls, of a shear for cutting the product delivered from said rolls, rotating means frictionally driven from said rolls for controlling the operations of said shear whereby the same is actuated at predetermined intervals, and means 'for preventing at will the-rotation of said last-mentioned means without disconnecting the same from said rolls.

4. The combination, with feeding rolls, of a shear for cutting the product delivered from said rolls, means for actuating said shaft operatively connected with said rolls, a rotatable disk adapted to be frictionally driven from said shaft, and means actuated by the rotation of said disk for controlling said shear actuating means.

5. The combination, with feeding rolls, of a shear for cutting the product delivered from said rolls, means for actuating said shear, a rotatable disk frictionally driven from said rolls, means actuated by the rotation of. said disk for controlling said ,shea'r actuating means, and means for holding said disk stationary, at will.

6. The combination with-feeding rolls, of

,y a shear for cuttingthej product delivered from said rolls, rotating means having a speed always in predetermined relation to the speed of said rolls for controlling-the operations of said shear, means for 1nterposmg a stop in the path of said rotating the speed of said opermeans, means for varying the speed of said'rotating means.

7 The combination with feeding rolls, of

a shear for cutting the product delivered from said rolls, rotating means frictionally driven from said rolls for controlling the operations of said shear whereby the same is actuated at predetermined intervals, means for preventing at will the rotation of said last-mentioned means without disconnecting the same from said rolls, and

means for varying the speed of said rotating means.

8. The combination with feeding rolls, of a shear for cutting the product delivered movement of said product for controlling the operations of sai shear, and means for varying the speed of said last mentioned means.

9. The combination with feeding rolls, of a shear for cutting the product delivered from said rolls, rotatin means for controlling the operations 0 said shear whereby the same is actuated at predetermined intervals, means for var ing the speed of said rotating means, an means for maintaining said rotating means at speeds in fixed relation to the speed of said product. Dated this-ninth day of April, 1914.

VICTOR E.. EDWARDS. Witnesses:

WILLARD A. WINN, FRANK M. Loan.

from said rolls, means having a speed in predetermined relation to t e speed of