US2047374A - Control and safety system for strand working apparatus - Google Patents

Control and safety system for strand working apparatus Download PDF

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Publication number
US2047374A
US2047374A US453004A US45300430A US2047374A US 2047374 A US2047374 A US 2047374A US 453004 A US453004 A US 453004A US 45300430 A US45300430 A US 45300430A US 2047374 A US2047374 A US 2047374A
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strand
working
valve
stopping
wire
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US453004A
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Einer W Larsen
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AT&T Corp
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Western Electric Co Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/02Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
    • B21C1/12Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms

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  • This invention relates to a control and safety system for strand working apparatus. particularly for use with wiredrawing machines.-
  • the principal object of the invention is to coordinate a. strand slackener of a strand working apparatus with the take-up means and incidentally to provide an interlocking system for positively safeguarding and controlling theA operating parts of a strand working apparatus.
  • one embodiment of the invention contemplates the provision of an automatic device for'- slackingthe wire in a wire drawing machine at the moment the' take-up reel stops rotating, (the capstan driving power not being shut off -before this moment).
  • a' system which is incidentally electrically interlocked so that the take-up mechanism can be operated only when the doors to the supply, Wire drawing capstan and take-up compartments .are closed and the reel is'locked on its arbor.V
  • Automatic devices are also provided for positively stopping the wire drawing and take-up units after the reel is full, the wire breaks, the end of the wire pulls through the machine, the reel becomes loose on its arbor or if the doors to the supply compartment are opened.
  • -Remote control switches are provided to electrically control mechanical and pneumatically operated devices for eiecting the actuation of the doors to the wire drawing capstan and take-up compartments, the motor controls, and to control valves for the wire drawing lubricating compound, pneumatic brake, the wire slacking mechanism and .a baffle mechanism.
  • Fig. l is a front elevational viewof a high speed wire,d rawing ⁇ machineY constituting an embodiment of the invention, and showing the arrangement' of the compartment;
  • Fig. 2 is a sectional View t'aken substantially along the line 2-,-2 of Fig. 1;
  • Fig. 3 is a detailed sectional View of the takeup compartment door construction
  • Fig.4 is anv enlarged front elevational view of Fig. 5 is a sectional view 5,--5 of Fig. 4, and I Fig. 6 is a wiring diagram showing the automatic electrical ⁇ controlling ⁇ means in connection with ⁇ a schematic illustration of the various operating parts effected by a closing of the circuits.
  • the supply compartment I I is provided with an open end 24 having a door 25 which may be of any'desired construction preferably of a roll type as shown in Fig. l.
  • the drawing compartment I3 contains a housing 26 (Fig. 2) which has reduced portions-21 and 28 at the top and bottom thereof designed to co73 operate with the top and bottom Awalls of .the compartment to forin ⁇ door receiving chambers 3
  • stepped capstans 33 and 34 are rotatably mounted upon'the front wall 35 ⁇ o f the housing 26, the capstan 33 ⁇ receiving the rodv stock I2 after passing from the pulley 23 and through a die in a die'block.
  • a plurality of tioned above the capstan 33, while a plurality of idler sheaves 39 are rotatably mounted upon an eccentric shaft 42 and positioned above a capstan 34.
  • the rod stock I2 is wound around the capstan 33 and the idler sheaves 3'Ias shown in Fig.
  • the inner ends ofthe shafts 38 and 42 have gears 53 rigidly mounted thereupon and in mesh with piston-actuated rack members 54, the inner reduced portions 55 thereof extending through packing units 55 in end walls oi' a cylinder 51 and ilxed to a piston 58 in the cylinder. Fluid or airlines 58 and 58 communicate with each end of the cylinder 51 for a purpose hereinafter described.
  • the wire drawing compartment has an aperture 52 which is arranged to be closed by swinging doors 83 and 84, having supporting arms 65 and 58 keyed to pivot shafts 51 and 58, respectively.
  • the shafts 51 and 58 are rotatably mounted in the walls of the housing 26 or in any suitable support, and have gears 18 and 1
  • the yoke 14 is slidably mounted upon a horizontal beamy and has a toothed V portion 15, the teeth of which mesh with a gear 11 keyed to a stub shaft 18.
  • 'Ihe stub shaft 18 is rotatably mounted in any suitable bearing (not shown) and has a lever 18 mounted upon one end thereof, the' outer end of which is pivotally secured to a connecting or piston rod -88.
  • the piston rod 88 extends through an aperture in a cover 8
  • a pivotal mounting indicated at 84 is provided for the cylinder so as to allow for a swinging movement due to thelever connection.
  • the take-up compartment I8 containing, as has already been described,r the idler pulleys 48 and 41, the take-up reel 48 and ⁇ the shaft 49, has a door 85 to close an aperture 85 thereof.
  • the general construction of this door 85 is shownin Pig. 3 wherein avplurality of horizontally disposed door sections 81 have their ends iixed to lengths 88 of chains which ride over idler sprockets 88 and driven sprockets 92, and have their inner ends secured to'brackets 93,1ixed to the rear wall of the take-up compartment.
  • Counterweights 34 are connected to'the brackets 53 by means of pivotal links 35 and tothe chains by meamV of links 88 and clamping membersZ 31.
  • the driven sprockets 82 are rigidly mounted upon the ends of a shaft 88 which has iixedly moimted thereupon a relatively small gear. 88 in mesh with a relatively large gear 18
  • 88 is flxedly mounted upon thestub shaft
  • the operation of the apparatus is controlled bvy the nt of circuits shown in Fig. 6 which are so related that the device will ⁇ be auto-- maticaliy controlled and will not operate until the apparatus is in readiness and the doors of the various compartments are closed.
  • the door 25 to the supply compartment v may be closed manually, or by any suitable means, and in so doing- .switches
  • 85 are disposed in the air lines
  • the air 30 from beneath the'piston 83 is exhausted through an air line
  • 1 also allows Aair under pressure to pass through a piston
  • 28 is provided with a toothed portion
  • any-number of units may be employed depending upon the number of die blocks in the apparatus.”
  • 48 is in communication with the air supply line
  • the baille mechanism consists of a roller supporting member
  • 51 therein will be moved into general ⁇ alignment with a telltale switch
  • 58 may be operated by any counter commonly used for controlling electrical contacts. but the preferred type of counter is disclosed in Larsen Patent No. 1,904,869, April 18, 1933.
  • 60 is closed due to the energizing of a solenoid
  • 60 simultaneously energizes a solenoid
  • 64 also allows air under pressure to pass from a cylinder
  • 62 also energizes .the time switch
  • 13 iseifected', shortly after the take-up motor is started, by means vof an oil pump
  • 66 is actu- ⁇ ated immediately upon the movement of the valve
  • 21, with the actuation of the piston 83, is brought about by the air under pressure entering the cylinder
  • the take-up compartment door 85 is opened by first closing the switch
  • the door 25 to the supply compartment may be opened in a similar manner if a slmilarfmeans is employed there
  • l In a strand working apparatus, means for advancing a strand, means for'taking up lthe strand as advanced, means for tightening the strand while advancing, means for stopping said 35 take-up means, and means responsive to the stopping of saidtake-up means for rendering said tightening means ineffective.
  • a capstan for receiving and advancing convolutions of strand material
  • a sheave for receiving the convolutions of material from said capstan
  • means for varying the relative positions of saidncapstan and said sheave for changing the tension of the strand material while advancing
  • atakeup means for receiving the strand from said sheave
  • means for stopping said take-up means and means responsive to said stopping means for operating said varying means to relieve the tension.
  • a strand working apparatus means for working a strand, means for advancingthe strand through said working means, means for stopping the actuation of said advancing means, means for varying the tensionof Asaid strand, means for actuating said varying means for tightening the tension of the strand while advancing, and means rendered effective responsive to the. stopping. of said advancing means for actuating said varying means for relieving the tension lof the strand.
  • a compartment containing supply means a compartment containing dies and a capstan for ⁇ drawing wire through said dies, a compartment containing a take-up mechanism for the drawn wire, doors for each of said compartments, electric power means for operating said take-up mechanism, a circuit for supplying current to said power means, means for opening and .closing said circuit, said last mentioned means being'so arranged that said 7 0 circuit cannot be completely closed until all of said doors yare closed, means responsive to a breakage of said wire and to said wire becoming loose for stopping said powermeans, means responsive to the opening ⁇ of one of said doors for take-up mechanism for the drawn wire, doors for each of said compartments, electric power means for operating said take-up mechanism, a circuit for supplying current to said power means, means for opening and closing said circuit, said last mentioned means being so arranged that said circuit cannot be completely closed until all of said doors are closed, means responsive to a breakage of said wire and to said wire becoming loose for stopping said power means,
  • a compartment containing supply means a compartment containing dies and a capstan for drawing wire through said dies, a compartment containing a take-up mechanism for the drawn wire, doors for each oi said compartments, electric power means for operating said take-up mechanism, a circuit for supplying current to said power means, means for opening and closing said circuit, said last mentioned means being so arranged that said circuit cannot be completely closed until all of said doors are closed, means responsive to a breakage of said wire and to said wire becoming loose tor stopping said power means, and means responsive to the opening of one of said doors for stopping said power means.
  • a compartment containing supply means a compartment coritaining dies and .a capstan for drawing wire through said dies, a compartment containing a take-up mechanism ior'the drawn wire, doors for each of said compartments, electric power means' i'or operating said take-up mechanism.
  • the combination or means for working strand material including a rotatable member over which a strand means for spooling thestrand 'delivered by the working means, control means for automatically the spooling means when the spool becomes full, means supporting said rotatablmember so as to permit movement thereof of its axis for slackening said strand, actuating means for moving said supporting means, and-means associated withv said control means for controlling said actuating means whereby the latter is automatically'operated to slacken said strand upon the stopping 'of said spool.l 4
  • means for working a strand of mal terial including a rotatable member over which said strand passes, movable mounting means for said rotatable member.- means for spooling the strand delivered by said working means, actuating means for moving said mounting means to thereby slacken said strand, and means under the control of said spooling means for rendering said actuating means eiIective.
  • the combination oi means for working a strand o! material including a rotatable drum and a rotatable idler sheave over which said strand passes, mounting means for said rotatable sheave, said mounting means being movable to vary the distance between the axis of said sheave and the axis of said drum, means i'or spooling the strand deliv- 60 ered by said working means, actuating means for moving said mounting means to decrease said distance to thereby slacken said strand, control means for said actuating means including an electro-magnetic device, and means under the control of said spooling means ior de-energizing said device substantially simultaneously with the stopping of said spooling means.
  • means for working a strand of material including a rotatable drum and an idler sheave over which the strand passes, a spindle upon which said. sheave is rotatable, movable mounting means for said spindle whereby the spacing of the axis of said spindle from the axis of said drum may be varied to thereby slacken said strand, a rotatable spool for winding the strand delivered by the working means, driving means for rotating said spool, actuatingmeans for said movable spindle mounting means including a fluid pressure responsive device operatively connected to said mounting means, avalve for controlling the supply of motive uid to said pressure responsive device, actuating means for said valve including an electro-magnetic device, and speed responsive switch means for controlling the energization of said electro-magneticgdevice whereby said fluid pressure responsive device isv rendered operative for slackeningy said strand upon the stopping of said driving means.
  • means for working a strand of material including a rotatable drum and an idler sheave over which said strand passes, means for taking up the strand delivered by said working means. and means responsive to the stopping of for withdrawing said holding means.
  • said winding means for slackening the strand substantially simultaneously with the stopping of said winding means, lsaid slackening means "including an eccentrically mounted spindle supporting said idler sheave and uid pressure re- 5 sponsive means for rotating said spindle.
  • the combination of means for working a strand of material including a rotatable drum and an idler sheave over which said strand passes, means for 10 taking up the strand delivered by said working means, means responsive tothe stopping of said winding means for slackening the strand substantially simultaneously with the stopping of said winding means, said slackening means including 15 an eccentrically mounted spindle supporting said idler sheave, fluid pressure responsive means for rotating said spindle, valve means for controlling said iiuid pressure responsive means, and electromagnetic means for controlling said valve means.
  • a rotatable spool carrier driving means for rotating" said carrier for winding "material upon a spool, holding means mounted forl movement relative to said spool, spring means normally biasing said holding means away from said spool, fluid pressure responsive means for pressing said holding means against the wound material, valvemeans under the control of the material being wound for supplying fluid pressure lto said fluid pressure responsive means andresponsive to the stopping of the spool carrier for,

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  • Mechanical Engineering (AREA)
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Description

July 14, 1936. -E w; LARSEN 2,047,374
CONTROL AND SAFETY SYSTEM FOR STRAND WORKING APPARATUS @MW/Ivry 2,047,374 CONTROL AND SAFETY SYSTEM FOR STRAND WORKING APPARATUS `uly 14, 1936. E. w.y LARsEN Filed May 16, 1930 4 Sheets-Sheet 2 July14,1936 Ew@ LARsi-:N 2,047,374
CONTROL AND SAFETY SYSTEM FOR STRAND WORKING APPARATUS 'y Filed May 16, 1930 4 sheets-sheet 5 July 14, 193e. E, W. ARSEN 2,047,374
CONTROL AND SAFETY SYSTEM FOR STRAND WORKING APPARATUS Filed May 1s, 195o 4 sheets-sheet 4 Patented July 14, 1936 UNITED 'STATES PATENT oFFlcE CONTROL AND SAFETY SYSTEM FOR STRAND WORKING APPARATUS Einer W. Larsen, Chicago, lll., asslgnor to Western Electric4 Company,
Incorporated, New York,
This invention relates to a control and safety system for strand working apparatus. particularly for use with wiredrawing machines.-
The principal object of the invention is to coordinate a. strand slackener of a strand working apparatus with the take-up means and incidentally to provide an interlocking system for positively safeguarding and controlling theA operating parts of a strand working apparatus.
In accordance with this and other objects, one embodiment of the invention contemplates the provision of an automatic device for'- slackingthe wire in a wire drawing machine at the moment the' take-up reel stops rotating, (the capstan driving power not being shut off -before this moment). a' system which is incidentally electrically interlocked so that the take-up mechanism can be operated only when the doors to the supply, Wire drawing capstan and take-up compartments .are closed and the reel is'locked on its arbor.V
Automatic devices are also provided for positively stopping the wire drawing and take-up units after the reel is full, the wire breaks, the end of the wire pulls through the machine, the reel becomes loose on its arbor or if the doors to the supply compartment are opened. -Remote control switches are provided to electrically control mechanical and pneumatically operated devices for eiecting the actuation of the doors to the wire drawing capstan and take-up compartments, the motor controls, and to control valves for the wire drawing lubricating compound, pneumatic brake, the wire slacking mechanism and .a baffle mechanism.
The features and advantages of the invention will be better understood from the following detailed description and one embodiment thereof taken in conjunction with the accompanying drawings, wherein f Fig. l is a front elevational viewof a high speed wire,d rawing` machineY constituting an embodiment of the invention, and showing the arrangement' of the compartment;
the slacking mechanism;
Fig. 2 is a sectional View t'aken substantially along the line 2-,-2 of Fig. 1;
Fig. 3 is a detailed sectional View of the takeup compartment door construction;
Fig.4 is anv enlarged front elevational view of Fig. 5 is a sectional view 5,--5 of Fig. 4, and I Fig. 6 is a wiring diagram showing the automatic electrical` controlling `means in connection with `a schematic illustration of the various operating parts effected by a closing of the circuits.
taken along the line upon the under surface thereof and a pair of`V truncated cone shaped posts 2l mounted upon the upper surface thereof. Suspended from a roof of the supply compartment are brackets 22 arranged to support idler pulleys 23 for receiving the rod stock I2 from the posts'ZI. The supply compartment I I is provided with an open end 24 having a door 25 which may be of any'desired construction preferably of a roll type as shown in Fig. l.
The drawing compartment I3 contains a housing 26 (Fig. 2) which has reduced portions-21 and 28 at the top and bottom thereof designed to co73 operate with the top and bottom Awalls of .the compartment to forin` door receiving chambers 3| and 32. stepped capstans 33 and 34 are rotatably mounted upon'the front wall 35 \o f the housing 26, the capstan 33` receiving the rodv stock I2 after passing from the pulley 23 and through a die in a die'block. A plurality of tioned above the capstan 33, while a plurality of idler sheaves 39 are rotatably mounted upon an eccentric shaft 42 and positioned above a capstan 34. The rod stock I2 is wound around the capstan 33 and the idler sheaves 3'Ias shown in Fig. 2- and as the material o r rod stock passes from the idler sheaves'31 it is drawn through dies in a die block 435 After the wire has been drawn through the dies in thedie block 43,it passes` around the last and largest circular grooved step of the capstan 33 The wire I5 passing from the idler pulley 44 vidler sheaves 31 are rotatably mounted upon an eccentric shaft 38 (Figs. 2 and 4), and are posi-V and over an idler pulley 44.
passes over the innermost idler sheave 39 and is then wound around the capstan 34 and the other idler sheaves 39 in the same manner as the wire is wound around thel capstan shown) arranged to refor supporting dies (not ceive the wie I5as each convolution thereof passes from the idler pulleys 34. The wire I5, after being through-the 39 the. Carsten 331 and the une; sheaves 3l (Fig. 2); A die block 45 is disposed between the idler sheaves 39 and the capstan- 34 52 so that they extend outwardly and upwardly.
The inner ends ofthe shafts 38 and 42 have gears 53 rigidly mounted thereupon and in mesh with piston-actuated rack members 54, the inner reduced portions 55 thereof extending through packing units 55 in end walls oi' a cylinder 51 and ilxed to a piston 58 in the cylinder. Fluid or airlines 58 and 58 communicate with each end of the cylinder 51 for a purpose hereinafter described. v
The wire drawing compartment has an aperture 52 which is arranged to be closed by swinging doors 83 and 84, having supporting arms 65 and 58 keyed to pivot shafts 51 and 58, respectively. The shafts 51 and 58 are rotatably mounted in the walls of the housing 26 or in any suitable support, and have gears 18 and 1| mounted thereupon and in mesh with rack portions 12 and 13, respectively, of an actuating yoke 14. The yoke 14 is slidably mounted upon a horizontal beamy and has a toothed V portion 15, the teeth of which mesh with a gear 11 keyed to a stub shaft 18. 'Ihe stub shaft 18 is rotatably mounted in any suitable bearing (not shown) and has a lever 18 mounted upon one end thereof, the' outer end of which is pivotally secured to a connecting or piston rod -88. The piston rod 88 extends through an aperture in a cover 8| ofa cylinder 32, and is fixed to a piston 83 which is movably disposed in the cylinder. A pivotal mounting indicated at 84 is provided for the cylinder so as to allow for a swinging movement due to thelever connection.
Vlecuredtoa 'The take-up compartment I8 containing, as has already been described,r the idler pulleys 48 and 41, the take-up reel 48 and `the shaft 49, has a door 85 to close an aperture 85 thereof. The general construction of this door 85 is shownin Pig. 3 wherein avplurality of horizontally disposed door sections 81 have their ends iixed to lengths 88 of chains which ride over idler sprockets 88 and driven sprockets 92, and have their inner ends secured to'brackets 93,1ixed to the rear wall of the take-up compartment. Counterweights 34 are connected to'the brackets 53 by means of pivotal links 35 and tothe chains by meamV of links 88 and clamping membersZ 31. The driven sprockets 82 are rigidly mounted upon the ends of a shaft 88 which has iixedly moimted thereupon a relatively small gear. 88 in mesh with a relatively large gear 18| which is xedly mounted upon a stub shaft |82. A pinion |88 is flxedly mounted upon thestub shaft |82 and is in mesh with a rack portion |04 of a piston rod |85, the opposite end of which is piston |88 slidably disposed in a cylinder |81. Y
The operation of the apparatus is controlled bvy the nt of circuits shown in Fig. 6 which are so related that the device will `be auto-- maticaliy controlled and will not operate until the apparatus is in readiness and the doors of the various compartments are closed. The door 25 to the supply compartment vmay be closed manually, or by any suitable means, and in so doing- .switches |88 are closed. By closing -an air line. |25 to a cylinder |25 so as to force switches |88 and ||l a magnetic switch ||2, the holding coil of which is in series with a time switch ||3, is closed, thus energizing a solenoid ||4 for actuating valves ||5, IIS, and ||1. By opening the valve ||5, air under pressure is allowed to pw from the supply pipe 8 through the valve ||5, anair line ||3 to the cylinder |01, thus moving the piston |85 downwardly (Fig. 6). and actuating the rack |84, the pinion |03, the gears |ll| and 33, rotating the shaft 98 and in turn moving the chains by their engagement with the sprockets 32 so as to move the door 85 into closed position. Y
' .The air in the cylinder |81, beneath the piston |08 is exhausted through an air line |28, the valve ||5 and an exhaust port' |2|. By actuating the valve ||1 the air under pressure from the supply line ||8 is allowed to pass through the air line |23 and into the cylinder 82 (Figs. 2 and 6) thus moving the piston 83 downwardly, and actuating the lever 13 so as to move the actuating yoke 14 outwardly and cause the doors 63 and 54 to be moved into closed position ladjacent the aperture 52. Flap valves |85 and4 |85 are disposed in the air lines |23 and |25 respectively, and have relatively small apertures therein to rallow a slow passage of air into the cylinders 82 and |25, rpectively, thus causing a slow vclosing of the doors 53 and 54 and a slow movement .o'f the valve |28 and the valve |35. The air 30 from beneath the'piston 83 is exhausted through an air line |24 through-.the valve ||1 an exhaust port III. The actuation of the valve ||1 also allows Aair under pressure to pass through a piston |21 downwardly with a valve rod |28 which is carried thereby so as to move a valve |28 intoengagement with a valve seat |30 of a.` compound drain aperture. The valve rod |28 is provided with a toothed portion |33 in mesh with a gear |34 of a compolmd supply valve |35, thus moving the valve into open pomtion so as A to allow compound for the dies to pass from a supply pipe |35 through the valve |35 and through a supply Pipe |31 to thedies in the die blocks 43 and 45.Y Although only one unit is shown for closing the compound drain and open- .ing the valve for admitting compound to the dies, any-number of units may be employed depending upon the number of die blocks in the apparatus." The air in the cylinder |25 beneath thepiston |21isexhaustedthroughanairline |38, the ai'r line |24, the valve ||1 and the exhaust port |25.
The wire I5 -in passing over the control idler pulley 41 (Figs. 1 and 6) moves a lever |48 about its pivot|4| and the tension of a spring |42 so as to close the switch |43 and allow a valve |44 to be closed by a spring |45. 'Iherefore, by the actuation of the valve ||54 the air co line |48 is in communication with the air supply line ||8 throughthevalve ||5soasto direct air under pressure past the valve |44 and through an air line |41 to a cylinder v|48 to actuate a piston |48 and in turn actuatea baille nechanism c5 |52 when th'e valve |44 isopen due to the break-l ingofthewire|5ortheremovalofthewirefrom the control idler pulley 44 when the entire sup-- ply of wire is drawn therefrom. The baille mechanism consists of a roller supporting member |53which is pivotallymolmted at |54 and normally held out oi' engagement with the wire wound upon the take-up reel 48 by aspring |55,
but arranged to be actuated by the actuation of the piston |48 so as to moveV rollers |55, carried 55 move the 'valve ||5 to permit air under pressure' thereby, into engagement with the wire on the take-up reel so as to prevent the vnre thereupon 4from loosening. i
l After the door 86 to the take-up compartment has been closed, a opening |51 therein will be moved into general `alignment with a telltale switch |58 so that the operator may reach through the opening and closethe switch. The telltale switch |58 may be operated by any counter commonly used for controlling electrical contacts. but the preferred type of counter is disclosed in Larsen Patent No. 1,904,869, April 18, 1933. By closing the switch |58, a switch |60 is closed due to the energizing of a solenoid |8I, starting the take-up motor |62. The switch |60 simultaneously energizes a solenoid |63 so as to actuate the valve |64 to permit air under pressure to pass from the supply line ||8 through the valve |64, the air line 60 and into the cylinder 51, thus moving thepiston 58 from the position shown in Fig. 6 toward the position shown in Fig. 4, thus actuating, the eccentric shafts 42 through the rack and gear l'connection so as to move the idler sheaves 31 and 39 upwardly from their respective capstans 33 and 34. The actuation of the valve |64 also allows air under pressure to pass from a cylinder |65of atake-up brake, indicated generally at |66, so as to allow the tensionl of springs |68 to move the fixed brake'member |10 from engagement with a rotatable brake member |1| of the shaft 4 9 (Figs. land 6).
' The starting of the take-up motor |62 also energizes .the time switch ||3 which is kept closed for' a set interval to keep the switch yI l2 closed until after a pressure controlled switch |13 has closed. The closing of the pressure controlled switch |13 iseifected', shortly after the take-up motor is started, by means vof an oil pump |14 which is actuated by the motor |62 and operatli'v'aely connected to the pressure controlled switch When the take-up spool or reel 48 becomes full, the telltale mechanism automatically breaks the circuit to the take-up motor |62 and de-energlzes the solenoid |63, thus allowing the valve |64 to be moved into the opposite position by a weight |15. The take-up brake mechanism |66 is actu-` ated immediately upon the movement of the valve |64 by the weight 115, due to the air under pressure passing from thesupply line ||8 through the valve, air lines |16 and |11, to the cylinder |65. When the motor |62 comes to rest, the pressure controlled switch |.13 opens, thereby de-energizing the solenoid ||4 allowing a weight |80 to to pass from the supply line ||8, through a flap valve |8| and through the air line 59 to the cylthe pressure controlled switch broken, and the' slacking mechanism actuategll W An actuating rod l183,/'wl chl-ssuppprts the weight |60 and: is actuated by the solenoid ||4 has lugsv |84 adapted to actuate the valves ||6 and ||1 upon the upward movement thereof, but is'moved free ofthe va1ves||6 and ||1 down- 'wardlyf l v about their pivots into open positions. A simul- 10 taneous actuation of the piston |21, with the actuation of the piston 83, is brought about by the air under pressure entering the cylinder |26 through the air line |38, thus closing the valve |35 so as to shut or'l' the supply of compound to the dies and to move the valve |29 away from the drain |30.' The take-up compartment door 85 is opened by first closing the switch |90 so as to energize the solenoid |9| and vmove the' valve ||64 to allow air under pressure to pass from the air 20 supply line ||8 therethrough, through an-air line |20 into the cylinder |01, thus moving the piston |06 upwardly, causing an actuation of the gears and sprockets which are operatively connected to the rack |04 to move the door 85 into 25 open position while aided by the c ounterweight 94. The door 25 to the supply compartment may be opened in a similar manner if a slmilarfmeans is employed therefor, or it may be opened manually by the aid of a handle |92.
What is claimed is:
l. In a strand working apparatus, means for advancing a strand, means for'taking up lthe strand as advanced, means for tightening the strand while advancing, means for stopping said 35 take-up means, and means responsive to the stopping of saidtake-up means for rendering said tightening means ineffective. l
2. In a strand working apparatus, a capstan for receiving and advancing convolutions of strand material, a sheave for receiving the convolutions of material from said capstan,means for varying the relative positions of saidncapstan and said sheave for changing the tension of the strand material while advancing, atakeup means for receiving the strand from said sheave, means for stopping said take-up means, and means responsive to said stopping means for operating said varying means to relieve the tension. .h
3. In a strand working apparatus, means for working a strand, means for advancingthe strand through said working means, means for stopping the actuation of said advancing means, means for varying the tensionof Asaid strand, means for actuating said varying means for tightening the tension of the strand while advancing, and means rendered effective responsive to the. stopping. of said advancing means for actuating said varying means for relieving the tension lof the strand.
4. In a wire drawing. machine, a compartment containing supply means, a compartment containing dies and a capstan for` drawing wire through said dies, a compartment containing a take-up mechanism for the drawn wire, doors for each of said compartments, electric power means for operating said take-up mechanism, a circuit for supplying current to said power means, means for opening and .closing said circuit, said last mentioned means being'so arranged that said 7 0 circuit cannot be completely closed until all of said doors yare closed, means responsive to a breakage of said wire and to said wire becoming loose for stopping said powermeans, means responsive to the opening^ of one of said doors for take-up mechanism for the drawn wire, doors for each of said compartments, electric power means for operating said take-up mechanism, a circuit for supplying current to said power means, means for opening and closing said circuit, said last mentioned means being so arranged that said circuit cannot be completely closed until all of said doors are closed, means responsive to a breakage of said wire and to said wire becoming loose for stopping said power means, means responsive to the openingot one of said doors for stopping said power means, and means to prevent opening of the other two doors while said takeup means is operating.V
6. In a wire drawing machine, a compartment containing supply means, a compartment containing dies and a capstan for drawing wire through said dies, a compartment containing a take-up mechanism for the drawn wire, doors for each oi said compartments, electric power means for operating said take-up mechanism, a circuit for supplying current to said power means, means for opening and closing said circuit, said last mentioned means being so arranged that said circuit cannot be completely closed until all of said doors are closed, means responsive to a breakage of said wire and to said wire becoming loose tor stopping said power means, and means responsive to the opening of one of said doors for stopping said power means.
'1. In a wire drawing machine, a compartment containing supply means, a compartment coritaining dies and .a capstan for drawing wire through said dies, a compartment containing a take-up mechanism ior'the drawn wire, doors for each of said compartments, electric power means' i'or operating said take-up mechanism. a circuit for supplying current to said power means, and means for opening and closing said circuit, said last mentioned means being so arranged that said circuit cannot be completely closed untiiallofsaiddoorsareclosed.
8. In apparatus of the character described the combination or means for working strand material including a rotatable member over which a strand means for spooling thestrand 'delivered by the working means, control means for automatically the spooling means when the spool becomes full, means supporting said rotatablmember so as to permit movement thereof of its axis for slackening said strand, actuating means for moving said supporting means, and-means associated withv said control means for controlling said actuating means whereby the latter is automatically'operated to slacken said strand upon the stopping 'of said spool.l 4
9. Inapparatus of thecharacter described the combination of means for -working a strand of material including an idler sheavev over which saidvstrand passes, eccentric mounting means for said sheave,y means i'or spooling the strand delivered by said working actuating means 'r for rotating said eccentric mounting mean's to `thereby slacken said strand, and means responsive to the operation oi' said spooling means for` controlling the supply of motive power to said actuating means.
10. In apparatus of the characterdescribed the combination of a casing, means in said casing for working a strand of material including a rotatable member over which said strand passes, winding means for taking up the strand delivered by said working means, a control for said winding means, a shaft supported by said casing and having an eccentric spindle portion upon which said rotatable memberis mounted, means for automatically rotating said shaft to thereby slacken said strand upon the stopping oi the winding means and control means actuated upon the stopping of said winding means for rendering the shaft rotating means effective.
11. In apparatus of the character described the combination of means for working a strand of material, means associated with said working means for slackening said strand, winding means for taking up the strand delivered by said working means, and means under the control oi said winding means iorI stopping said winding means andv actuating said slackening means substantially simultaneously with the stopping of the winding means. i Y
12. In apparatus of the character described the combination of means for working a strand of material, winding means for taking up the strand delivered by said working means, means under the control of said winding means for stopping said winding means, means for slackening said strand,
' and control means responsive to the stopping of said winding means for rendering said slackening means eiective. A
13. In apparatus of the character described the combination oi means for working a strand of material, winding means for taking up the strand delivered by said working means, and means responsive to the stopping of said winding means for slackening said strand substantially simultaneously with the stopping of said winding means.'
14. In apparatus of the character described the combination of means for working a strand of mal terial including a rotatable member over which said strand passes, movable mounting means for said rotatable member.- means for spooling the strand delivered by said working means, actuating means for moving said mounting means to thereby slacken said strand, and means under the control of said spooling means for rendering said actuating means eiIective.
15. In apparatus of the character described the combination oi means for working a strand o! material including a rotatable drum and a rotatable idler sheave over which said strand passes, mounting means for said rotatable sheave, said mounting means being movable to vary the distance between the axis of said sheave and the axis of said drum, means i'or spooling the strand deliv- 60 ered by said working means, actuating means for moving said mounting means to decrease said distance to thereby slacken said strand, control means for said actuating means including an electro-magnetic device, and means under the control of said spooling means ior de-energizing said device substantially simultaneously with the stopping of said spooling means.
16. In apparatus of the character described the combination of means i'or working a strand of 70 material including a rotatable drum and an idler sheave over which the strand passes, a spindle upon which said sheave is rotatable, movable mounting means for said spindle whereby the spacing of the axis of said spindle from the axis driving means for rendering said actuating means effective for slackening said strand.
17. In apparatus of the character described the combination of means for working a strand of material including a rotatable drum and an idler sheave over which the strand passes, a spindle upon which said. sheave is rotatable, movable mounting means for said spindle whereby the spacing of the axis of said spindle from the axis of said drum may be varied to thereby slacken said strand, a rotatable spool for winding the strand delivered by the working means, driving means for rotating said spool, actuatingmeans for said movable spindle mounting means including a fluid pressure responsive device operatively connected to said mounting means, avalve for controlling the supply of motive uid to said pressure responsive device, actuating means for said valve including an electro-magnetic device, and speed responsive switch means for controlling the energization of said electro-magneticgdevice whereby said fluid pressure responsive device isv rendered operative for slackeningy said strand upon the stopping of said driving means.
18i In apparatus of the haracter described, the combination of means for working a strand-of material, Winding means for taking up the strand delivered by said working means, and means for -slackening the strand substantially simultaneously with the stopping of saidwinding means, said slackening means including an uelectromagnetic device and means responsiveto the stopping of said winding means for deenergizing said device substantially simultaneously with the stopping o said winding means.
19. In apparatus of the character described, the combination of means for working a strand of material including a rotatable drum and an idler sheave over which said strand passes, means for taking up the strand delivered by said working means. and means responsive to the stopping of for withdrawing said holding means.
said winding means for slackening the strand substantially simultaneously with the stopping of said winding means, lsaid slackening means "including an eccentrically mounted spindle supporting said idler sheave and uid pressure re- 5 sponsive means for rotating said spindle.
20. In apparatus of the character described, the combination of means for working a strand of material including a rotatable drum and an idler sheave over which said strand passes, means for 10 taking up the strand delivered by said working means, means responsive tothe stopping of said winding means for slackening the strand substantially simultaneously with the stopping of said winding means, said slackening means including 15 an eccentrically mounted spindle supporting said idler sheave, fluid pressure responsive means for rotating said spindle, valve means for controlling said iiuid pressure responsive means, and electromagnetic means for controlling said valve means. 20
21. In apparatus of the character described, the combination of a rotatable spool carrier,`driving means for rotating said carrier for winding material upon a spool, holding means mounted for movement relative to said spool, means under the 25 control of the material being wound for pressing said holding means against the wound material, and means rendered 'effective substantially simultaneously with the stopping of the spool carrier 22. In apparatus of the character described, the combination of a rotatable spool carrier, driving means for rotating" said carrier for winding "material upon a spool, holding means mounted forl movement relative to said spool, spring means normally biasing said holding means away from said spool, fluid pressure responsive means for pressing said holding means against the wound material, valvemeans under the control of the material being wound for supplying fluid pressure lto said fluid pressure responsive means andresponsive to the stopping of the spool carrier for,
-interrupting the supply of fluid pressure to said fluid pressure responsive means and thereby ren- 45 dering said spring means effective for withdrawing said holding means.
' EINER W. LARSEN.
US453004A 1930-05-16 1930-05-16 Control and safety system for strand working apparatus Expired - Lifetime US2047374A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831412A (en) * 1973-07-13 1974-08-27 Cook Machinery Co Coordinated stopping of take-up and process machines
US4750344A (en) * 1985-11-01 1988-06-14 Ceeco Machinery Manufacturing Limited Wire drawing apparatus and method
US4884430A (en) * 1987-04-24 1989-12-05 Sumitomo Wiring Systems, Ltd. Filament drawing machine
WO1989012514A1 (en) * 1985-11-01 1989-12-28 Syncro Machine Co. Wire drawing apparatus and method
US20150158066A1 (en) * 2012-03-23 2015-06-11 Steinklauber Industriebeteiligung & Vermögensverwaltung GmbH Wire drawing device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831412A (en) * 1973-07-13 1974-08-27 Cook Machinery Co Coordinated stopping of take-up and process machines
US4750344A (en) * 1985-11-01 1988-06-14 Ceeco Machinery Manufacturing Limited Wire drawing apparatus and method
WO1989012514A1 (en) * 1985-11-01 1989-12-28 Syncro Machine Co. Wire drawing apparatus and method
US4884430A (en) * 1987-04-24 1989-12-05 Sumitomo Wiring Systems, Ltd. Filament drawing machine
US20150158066A1 (en) * 2012-03-23 2015-06-11 Steinklauber Industriebeteiligung & Vermögensverwaltung GmbH Wire drawing device
US10406575B2 (en) * 2012-03-23 2019-09-10 Steinklauber Industriebeteiligung & Vermögensverwaltung GmbH Wire drawing device

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