US3910423A - Spinner loader equipment - Google Patents

Spinner loader equipment Download PDF

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Publication number
US3910423A
US3910423A US51385874A US3910423A US 3910423 A US3910423 A US 3910423A US 51385874 A US51385874 A US 51385874A US 3910423 A US3910423 A US 3910423A
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Prior art keywords
means
carriage
mounted
gripper
slide
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Expired - Lifetime
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Robert J Killian
Nolte V Sproul
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Dyneer Corp
Gates Power Drive Products Inc
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Dyneer Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/027Combined feeding and ejecting devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q7/00Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers

Abstract

Automatic loader equipment picks up a cup-shaped metal pulley blank at a supply station and places the blank between headstock and tailstock assemblies of an automatic pulley spinning machine; and simultaneously removes or unloads a previously placed blank in which pulley groove means has been spun from the headstock and tailstock assemblies and deposits the spun pulley at a discharge station. A carriage is mounted on a pair of slide rods above the spinning machine for transverse sliding movement with respect to the longitudinal axis of the machine between the pulley blank supply or pickup station and the spun pulley discharge station. A pair of load and unload assemblies is mounted on the carriage for relative independent sliding movement on the carriage parallel to the longitudinal axis of the spinning machine. Each slide assembly has a gripper assembly mounted on its forward end which moves generally toward and away from the axis of the spinner or vertically between outer and inner or raised and lowered positions. Finger means are provided on an end of each gripper assembly for gripping a pulley blank or a spun pulley therebetween. The load slide gripper assembly grips a pulley blank by its finger means simultaneously with the unload slide gripper assembly finger means gripping a spun pulley positioned on the headstock spindle of the spinning machine. Both gripper assemblies move away from the axis or vertically upwardly, simultaneously with the horizontal sliding movement of the carriage whereupon the gripped spun pulley is deposited at the discharge station and the pulley blank is placed on the headstock spindle upon the carriage reaching the pulley discharge station. During the subsequent spinning operation of the pulley blank the carriage, slide assemblies and gripper assemblies return to their normal or home positions for initiating another cycle of operation.

Description

United States Patent [191 Killian et al.

[4 1 Oct. 7, 1975 l SPINNER LOADER' EQUIPMENT [75] Inventors: Robert Killian, North Canton; Nolte Vi Sproul, Canton, both of Ohio [73] Assignee: Aspro, Inc., Canton, Ohio [22] Filed: Oct. 10, 1974 21 Appl. No.: 513,858

Primary ExaminerMilton S. Mehr Attorney, Agent, or FirmFrease & Bishop [57] ABSTRACT Automatic loader equipment picks up a cup-shaped metal pulley blank at a supply station and places the blank between headstock and tailstock assemblies of an automatic pulley spinning machine; and simultaneously removes or unloads a previously placed blank in which pulley groove means has been spun from the headstock and tailstock assemblies and deposits the spun pulley at a discharge station. A carriage is mounted on a pair of slide rods above the spinning machine for transverse sliding movement with respect to the longitudinal axis of the machine between the pulley blank supply or pickup station and the spun pulley discharge station. A pair of load and unload assemblies is mounted on the carriage for relative independent sliding movement on the carriage parallel to the longitudinal axis of the spinning machine. Each slide assembly has a gripper assembly mounted on its forward end which moves generally toward and away from the axis of the spinner or vertically between outer and inner or raised and lowered positions. Finger means are provided on an end of each gripper assembly for gripping a pulley blank or a spun pulley therebetween. The load slide gripper assembly grips a pulley blank by its finger means simultaneously with the unload slide gripper assembly finger means gripping a spun pulley positioned on the headstock spindle of the spinning machine. Both gripper assemblies move away from the axis or vertically upwardly, simultaneously with the horizontal sliding movement of the carriage whereupon the gripped spun pulley is deposited at the discharge station and the pulley blank is placed on the headstock spindle upon the carriage reaching the pulley discharge station. During the subsequent spinning operation of the pulley blank the carriage, slide assemblies and gripper assemblies return to their normal or home positions for initiating another cycle of operation.

30 Claims, 32 Drawing Figures US. Patent Oct. "1,1975 Sheet 1 0f 11 3,910,423

US. Patent 0C1. 7,1975 Sheet 2 of 11 3,910,423

NOE

US. Patent Oct. 1,1975 sheetaom 3,910,423

U.S. Patent Oct. 7,1975 Sheet4 of 11 3,910,423

U.S. Patent OCt. 7,1975 Shfiet 5 of 11 3,910,423

US. Patsnt Oct. 7,1975 Sheet 6 of 11.

US. Paient 0a. 7,1975 Sheet7 0f 11 3,9WA23 US. Patent 0a. 7,1975 Sheet 8 of 11 3,910,423

US. Patent Oct. 7,1975 Sheet 10 of 11 3,910,423

U.S. Patenft Oct. 7,1975

Sheet 11 of 11 II 1 Y I 9 f FIG.3O

f x by e LOAD O \L n FIG.3I l I H! mkv) UNLOAD LOAD CYCLE UNLOAD CYCLE III F |G.32

SPINNER LOADER EQUIPMENT BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to apparatus for forming V- grooved pulleys, and specifically to apparatus for loading and unloading pulley blanks and spun pulleys on and off a pulley spinning machine. More particularly, the invention relates to apparatus which automatically picks up a cup-shaped pulley blank and loads it on the headstock dies of a spinning machine, and which automatically removes the spun pulley from the spinning dies after completing the spinning procedure and deposits it for collection at a discharge station adjacent the spinning machine.

2. Description of the Prior Art Many procedures and types of equipment for the manufacture of V-grooved pulleys are known involving press and rolling or spinning operations, or combinations of any or all of such operations, during which operations a grooved pulley is formed from a single sheet metal blank. Examples of such known pulleys, and methods of and apparatus for making such pulleys are shown in US. Pat. Nos. 2,685,856, 2,869,223 and 2,892,431,

Heretofore, one or more operators were located at each spinning machine and manually lifted a pulley blank from a hopper and placed it on the spinner headstock spindle. The operator then started the spinning machine and after the spinning operation was completed stopped the machine and manually removed the spun pulley from spinner dies and placed it in a collection container. Such procedures were time consuming, expensive, and occasionally dangerous to the operators who are constantly working adjacent spinning equipment elements sometimes rapidly moving.

There is no known equipment of which we are aware which has eliminated the problems of the manual placement of a pulley blank on the spinner headstock spindle dies and the subsequent manual removal of the spun pulley therefrom which provides the unique com bination of several dependent and independently movable assemblies set forth below which efficiently, rapidly and automatically perform those procedures which were heretofore manually performed.

SUMMARY OF THE INVENTION Objectives of the invention include providing spinner loader equipment which automatically picks up a pulley blank at a supply station and places the blank on the headstock of a spinning machine, simultaneously with the removal of a spun pulley from the headstock and the deposit of the spun pulley at a discharge station; providing spinner loader equipment having carriage means slidably mounted adjacent the spinning machine for movement transverse of the longitudinal axis of the machine, in which a pair of slide assemblies is mounted on the carriage, and in which gripper means is mounted on each slide assembly for grasping and moving the pulley blank and spun pulley between the pickup or loading station and the discharge station; providing spinner loader equipment in which the various movable assemblies and components are operated by hydraulic and pneumatic pistons having switch means incorporated therewith, with the signals from the switch means being fed to appropriate control mechanisms to insure proper timed sequence of operation of these control pistons;

providing spinner loader equipment having chute means for continously supplying metal blanks for the pickup gripper means by individually releasing a pulley blank for discharge to the pickup positions; providing spinner loader equipment which can be used in conjunction with known spinning machines for forming single or multiple groove pulleys, or with other types of spinning operations which may be desired, since the loader equipment is not dependent directly upon the particularspinning machine for its operation but is coordinated in timed sequence with the particular spinning cycle of the machine; providing spinner loader equipment which can be mounted directly on existing spinning machines without major modification thereof; and providing spinner loader equipment which eliminates the heretofore manual loading and unloading of a spinner simply, effectively and effieiently, and which achieves the stated objectives, solves problems, and satisfies existing needs.

These objectives and advantages are obtained by the spinner loader construction which automatically feeds a cup-shaped metal blank to a location between the headstock and tailstock assemblies of a spinning machine and which removes the finished spun pulley therefrom and deposits the pulley at a discharge station, the general nature of which may be stated as including carriage support means extending transversely with respect to the longitudinal axis of the spinning machine; carriage means movably mounted on the support means for reciprocating movement along the support means between the pulley blank pickup station and the spun pulley discharge station; load and unload slide assemblies mounted on the carriage means, each of the slide assemblies being relatively independently movable on the carriage means for reciprocating motion in a direction parallel to the longitudinal axis of the spinning machine; the slide assemblies each having gripper means mounted thereon, the gripper means being relatively movable with respect to the slide assemblies and carriage means; means for delivering cup-shaped metal blanks to the pickup station; the gripper means of the load slide assembly being adapted to grip and remove a metal blank from the supply means and to place the blank between the headstock and tailstock die assemblies by the combined relative movement of the load gripper means, the longitudinal movement of the load slide assembly, and the transverse movement of the carriage means, and the gripper means of the unload slide assembly being adapted to grip and remove a spun pulley from between the headstock and tailstock die assemblies and to deposit the pulley at the discharge station by the combined relative movement of the unload gripper means, the longitudinal movement of the unload slide assembly, and the transverse movement of the carriage means, the unload gripper means and unload slide assembly movements being simultaneous and coordinated with the movements with the load gripper means and load slide assembly; the carriage support means having a pair of spaced parallel slide rods and the carriage means having bearing blocks telescopically engaged with the slide rods to slidably support the carriage means on the carriage support means; piston means operatively connected with the carriage means, slide assemblies, and gripper means for imparting respective controlled and coordinated movements thereto; shock absorbing stop means operatively engageable with the carriage means, slide assemblies, and

gripper means when said carriage and gripper means and slide assemblies arrive at one of their respective positions; the gripper means including finger means pivotally movable between release and gripping position; the finger means of the load slide assembly having a plurality of pads mounted thereon for Clamping a pulley blank; and the finger means of the unload slide assembly having a plurality of rollers mounted thereon for clamping a spun pulley therebetween.

BRIEF DESCRIPTION OF THE DRAWINGS A preferred embodiment of the invention illustrative of the best mode in which applicants have contemplated applying the principles is set forth in the fol lowing description and shown in the drawings and is particularly and distinctly pointed out and set forth in the appended claims.

FIG. 1 is a top plan view of the spinner loader equipment mounted on a spinning machine for forming V- grooved pulleys;

FIG. 2 is a side elevation of the assembly shown in FIG. I looking in the direction of arrows 2-2, FIG. 1;,

FIG. 3 is an end elevation of the assembly shown in FIGS. 1 and 2 looking in the direction of arrows 3-3, FIG. 1;

FIG. 4 is an enlarged fragmentary top plan view with portions removed of the pulley blank feed chute shown in the left hand portion of FIG. 3;

FIG. 5 is a fragmentary end elevation looking in the direction of arrows 5-5, FIG. 4;

FIG. 6 is an enlarged fragmentary sectional view with portions broken away, taken online 6-6, FIG. 1, with the load and unload slide assemblies shown in the home position;

FIG. 7 is a fragmentary sectional view taken on line 7-7, FIG. 6, with the load and unload slide assemblies shown in the finished pulley discharge position;

FIG. 8 is an enlarged fragmentary top plan view of the pulley blank unload carriage slide assembly which is shown in FIG. 1 located along the centerline of the spinning machine;

FIG. 9 is an elevational view of the unload gripper assembly looking in the direction of the arrows 9-9, FIG. 8;

FIG. 10 is a view similar to FIG. 9 with the unload gripper assembly shown in raised position with the spun pulley gripping fingers in release position;

FIG. 11 is an enlarged fragmentary sectional view taken on line 11-11, FIG. 6;

FIG. 12 is a reduced fragmentary sectional view taken on line 12-12,FIG. 8;

FIG. 13 is a fragmentary sectional view taken on line 13-13, FIG. 12; 7

FIG. 14 is a reduced fragmentary sectional view taken on line 14-14, FIG. 8;

FIG. 15 is a fragmentary sectional view taken on line 15-15, FIG. 9;

FIG. 16 is a fragmentary sectional view taken on line 16-16, FIG. 9;

FIG. 17 is afragmentary sectional view taken on line 17-17, FIG. 9;

FIG. 18 is a fragmentary sectional view taken on line 18-18, FIG. 9 with the spun pulley removed;

FIG. 19 is an enlarged fragmentary sectional view taken on line 19-19, FIG. 18;

FIG. 20 is a fragmentary sectional view taken on line 20-20, FIG. 19;

FIG. 21 is an enlarged fragmentary sectional view taken on line 21-21, FIG. 7;

FIG. 22 is an enlarged fragmentary front elevational view of the pulley blank load gripper assembly. looking in the direction of arrows 22-22, iFIG. 7,.with the pulley blank removed;

FIG. 23 is a fragmentary end elevational view looking in the direction of arrows 23-23, FIG. 22;

FIGS. 24-29 are diagrammatic views showing the operational sequence of the spinner loader equipment loading a pulley blank on the spinner apparatus and removing a spun groove pulley therefrom;

FIG. 30 is a diagrammatic perspective view of a single load cycle showing the path of travel of a pulley blank as it moves between the pickup station and the headstock die assembly, and the return path of travel of the load finger means;

FIG. 31 is a diagrammatic perspective view of a single unload cycle showing the path of travel of a spun pulley as it moves from the headstock die assembly to the discharge station, and the return path of travel of the unload fingermeans; and

FIG. 32 is a coordination chart showing the timed sequence between the load and unload assemblies during one complete load and unload cycle.

Similar numerals refer to similar parts throughout the drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENT The new spinner loader equipment is indicated generally at.1, and is shown in FIGS. 1, 2 and 3 mounted on spinning apparatus of the general type as shown in U.S. Pat. No. 2,892,431 for forming multiple groove pulleys. The spinning apparatus is indicated generally at 2, and includes motor means 3' to drive headstock. spindle 4 of a headstock assembly 5. A tailstock spindle 6 is journaled in a tailstock assembly 7 in axial alignment with the headstock spindle 4. Either one or both of the headstock and tailstock spindles may be driven, preferably both headstock spindle 4 and tailstock spindle 6 are rotated in synchronization by motor means 3 and 3a, respectfully.

Furthermore, the headstock spindle 4 and tailstock spindle 6 are relatively movable axially so as to separate the headstock and tailstock die assemblies 5 and 7 respectfully, as shown in FIGS. 1 and 2, and to move, them axially toward one another for the spinning operation. Hydraulic cylinder means 12 mounted adjacent tailstock assembly 7 moves the tailstock assembly axially towards the headstock during the roller spinning of a pulley.

The headstock and tailstock die assemblies 5 and 7 have forming surface which cooperate .with the spinning roll means and inner die forms controlled by mandrel means actuated by cylinder means 8 during the groove forming spinning operation as a pulley blank is held under axial pressure between the headstockand tailstock dies 5 and 7; and the operation of these components is coordinated in accordance with the programming of the spinner as described in U.S. Pat. No. 2,892,431.

Spinning apparatus 2 also is provided with means for moving the spinning rolls (not shown) toward and away from the axis of the headstock and tailstock spindles 4 and 6. Such apparatus is indicated generally at 9 (FIG. 1

2) which preferably is connected in timed relation with drive motor so that actuating levers 11 will move the spinning rolls to and from the axis of spindles 4 and 6 at predetermined times during the spinning cycle.

In accordance with the invention, spinner loader equipment 1 includes as main components a chute assembly 15 and a carriage assembly 16. Chute assembly 15 provides a means for automatically delivering a continuous dupply of pulley blanks to carriage assembly 16 for loading on the headstock die assembly and for unloading a spun V-groove pulley therefrom.

Carriage assembly 16 includes a generally U-shaped support base 17 (FIGS. 6, 8 and 12) mounted on spinning apparatus 2 and extending transversely with respect to the longitudinal axis or center line 18 of apparatus 2. Line 18a (double dot-dash) represents a vertical plane passing through center line 18 of spinner apparatus 2 (FIGS. 3 and 6).

Support base 17 preferably is located above tailstock assembly 7 and has a horizontal web 19 and vertical sides 20. Web 19 is formed with a pair of cutouts 21 to reduce the weight thereof without appreciably effecting its strength (FIGS. 1 and 7). Base 17 includes flanges 22 which are bolted at 23 to frame members 24 of spinner 2 to rigidly secure base 17 on the spinning machine (FIGS. 6 and 7).

A pair of parallel spaced transversely extending slide rods 25 and 26 are mounted on support base 17 by support brackets 27. Brackets 27 are bolted at 28 to horizontal end plates 29 which extend across each end of web 19. Flanged channel members 31 extend horizontally between adjacent rod support brackets 27 and are bolted to the tops of brackets 27 by bolts 32 (FIGS. 3 and 11) and members 31 extend vertically upwardly from the brackets 27. A cross member 33 (FIG. 3) extends between the tops of channels 31 for mounting sundry control equipment (not shown) for controlling the operation of spinner loader equipment.

A carriage indicated generally at 35 (FIGS. 8 and 12) is slidably mounted on slide rods 25 and 26 by four bearing blocks 36 for horizontal movement along the guide rods between a pulley blank pickup position of FIG. 1 and a spun pulley discharge position of FIG. 7. Carriage 35 includes a base plate 37 having a central cutout 38, with bearing block 36 being welded at 39 to the underside surface of plate 37 (FIGS. 8, 12 and 14).

Hydraulic piston means 40 is mounted on the left hand end plate 29 when viewing FIG. 7 and extends approximately onehalf the length of carriage assembly 16 to the center line 18 of spinning apparatus 2 for moving carriage 35 along slide rods 25 and 26. The left hand end of piston cylinder 41 is mounted on a support platform 42 (FIGS. 7 and 11) which is fixed to end plate 29. The right hand end of piston cylinder 41 is mounted on a plate 43 (FIGS. 13 and 21) extending between sides 20 of support base 17 above web 19. The extended end of piston rod 44 (FIG. 21) is bolted at 45 to a plate 46 which is welded to the bottom of carriage plate 37. Piston means 40, thus provides means for moving carriage 35 transversely with respect to center line 18 and plane 18a of spinning machine 2 along slide rods 25 and 26, between the pulley blank pickup position and the spun pulley discharge position.

Stop plates 47 (FIG. 12) extend downwardly from the bottom of base plate 37 at both ends of carriage 35 for engagement with piston rods 48 of pneumatic shock absorbers 49 (FIGS. 7 and 11). Shock absorbers 49 are mounted on vertical end plates 50 which are mounted on each end of carriage support base 17 for cushioning and absorbing the movement of carriage 35 as it reaches the end of slide rods 25 and 26. Bumper pads 51 also are mounted on the edges of carriage plate 37 (FIG. 8) to assist in absorbing the force of stopping carriage 35. Air manifolds 52 (FIG. 6) or other control equipment may be mounted on end plates 50 and communicate with associated control components mounted on cross member 33.

In further accordance with the invention, a pair of load and unload slide assemblies, indicated generally at 55 and 56, respectively, are mounted on carriage 35 for loading a pulley blank 57 on head stock spindle 4 and for unloading a finished spun V-grooved pulley 58 therefrom.

Slide assemblies 55 and 56 are similar, and thus only unload assembly 56 is described in detail and'is shown particularly in the drawings. Assembly 56 includes a channel-shaped member 59 having a base 60 and a pair of upstanding sides 61 and 62 (FIGS. 8, 12 and 13) with the front end of base 60 being tapered inwardly as shown in FIG. 8. Channel 59-is mounted on a slide block 63 which is formed with an undercut slot 64 in the bottom thereof in which is engaged a pair of angled ribs 65 formed on a base pad 66. Pad 66 is mounted on carriage base plate 37 (FIG. 13).

A pneumatic slide control piston 67 is mounted on channel member 59 between sides 61 and 62 by a rear mounting plate 68 and a front support plate 69 extending between sides 61 and 62 (FIGS. 12 and 13). The extended end of piston rod 70 is attached by bolt 71 to a vertical channel 72 which is welded to carriage 35. Thus, actuation of piston 67 moves slide assembly 56 along ribs 65 between the extended position of FIGS. 8 and 12 and the retracted position of FIG. 7.

A stop 73 is mounted on side block 63 and includes a pair of oppositely extending bolts 74 (FIGS. 8 and 14). The lower portion of stop 73 is formed with a pair of shoulders 75 which contact pistons 76 of shock absorbers 77 mounted on carriage base plate 37. Shock absorbers 77 absorb the moving force and limit the sliding motion of slide assembly 56. Bolts 74 contact the upper portions of shock absorbers mounting blocks 78 to provide a positive stop for assembly 56. Mounting blocks 78 preferably are mounted by bolts 79 to carriage plate 37.

Gripper assemblies 80 and 81 are mounted on the front or forward end of load and unload slide assemblies 55 and 56, respectively. Gripper assemblies 80 and 81 are similar in many respects, and thus only unload gripper assembly 81 is described in detail below except for several differences in the load gripper assembly 80 from assembly 81.

Assembly 81 (FIGS. 8, 9 and 10) is mounted on slide assembly 56 by a pair of spaced upper and lower plates 82 and 83. Plates 82 and 83 are bolted at 84 to a vertically extending mounting plate 85 welded to the front ends of channel sides 61 and 62 (FIG. 12). A pair of guide tubes 86 and 87 are fixed to and extend between plates 82 and 83,,and piston actuating means 88 is mounted on upper plate 82 and extends through an opening 89 in lower plate 83.

Hollow guide rods 90 and 91 extend slidably through tubes 86 and 87 and have their upper ends connected to a top end plate 92 by an end cap 93 and a nut 94, respectively. An adjustable stop bolt 95 also is mounted on and extends downardly from end plate 92 for engagement with a limit switch 96 mounted on upper plate 82. The extended end of piston rod 97 of piston means 88 is bolted at 98 within a recess 99 formed within top end plate 92.

A pair of pneumatic shock absorbers 100 and 101 is mounted on upper and lower plates 82 and 83, respectively, having plunger rods 102 and 103. Rods 102 and 103 contact stops 104 and 105, respectively, formed on the left hand ends of top end plate 92 and a bottom end plate 106 (FIGS. 9 and when assembly 81 moves generally toward center line 18 of spinner 2 (FIG. 9) between the raised or outer position of FIG. 10 and the lowered or inner position of FIG. 9 upon actuation of the piston means 88. The lower end of guide rod 91 is bolted at 107 to bottom plate 106, and the lower end of guide rod engages plate 106 by a key 108 (FIG. 17 and 18). The upper end of piston means 88 is connected to upper plate 82 by adapter plate 109 (FIG. 10 and 15).

Bottom end plate 106 (FIG. 17)includes a rectangular portion 110 with stop extending outwardly therefrom, and an angled leg portion 111 to which guide rod 91 is attached. A second piston means 112 which has a considerably shorter stroke than that of piston means 88, is mounted on the front of rectangular portion of plate 106 and extends upwardly therefrom, and piston means 112 actuates a pair of unload gripper fingers, indicated generally at 113 and 114 (FIGS. 9, 10 and 19).

Fingers 113 and 114 include offset angle plates 115 and 116 respectively, which extend downardly and outwardly from a pair of upper mounting plates 11,7 and 118. Reinforcing gussets 117a and 1180 preferably extend between the fingers and plates. A pair of rollers 119 is mounted on finger plate 115, and a single roller 120 is mounted on plate 116 (FIGS. 9, 10 and 18) for gripping and clamping a spun pulley 58 therebetween.

Plates 117 and 118 are bolted at 121 to lever plates 122 and 123 respectively, which in turn are rigidly connected to a pair of links 124 and 125 (FIGS. 19 and 20). Links 124 and 125 are mounted on yoke 126 with one end of each link being pivotally connected to yoke 126 by pivot pins 127 and 128, and with the other link ends pivotally engaging a pin 129. Pin 129 extends through elongated slots 130 formed in the overlapping ends of links 124 and 125. Piston rod 112a of finger piston means 112 is operatively connected to links 124 and 125 by an extension sleeve 131 (FIG. 18) which is threadedly engaged with the extended end of piston rod 112a (FIG. 19). Pin 129 pivotally connects a reduced end of sleeve 131 to links 124 and 125.

Fingers 132 and 133 of load gripper assembly 80 (FIGS. 22 and 23) may have a somewhat different shape than that of fingers 113 and 114 of unload grip per assembly 8]. Finger 132 has a pair of spaced pads 134 pivotally mounted thereon by pins 135, and finger 133 has a single rigidly mounted pad 136 for gripping pulley blanks 57 between pads 134 and 136. The remaining components of gripper assembly 80 are similar to those of assembly 81.

The chute assembly 15 (FIGS. 1, 3 and 7) is movably mounted on spinner 2 by a pair of slide rods 140 and 141 which extend parallel with the longitudinal axis 18 of spinner 2.. Slide rods 140 and 141 are slidably mounted within a pair of spaced stationary bearing blocks 142 and 143 which are mounted on the ex tended ends of a pair of mounting plates 144 and 145,

respectively. Plates 144 and 145 are bolted at 146 to the frame of spinner 2.

A chute housing, indicated generally at 147, is mounted on slide rods 140 and 141 and is inclined downwardly towards spinner'2 as shown in FIGS. 3 and 6 by its generally triangularly shaped chute support plates 149 and 150. Housing 147, has a bottom wall 148 (FIG. 5) which is welded to plates 149 and 150 and a erossmember 151 extends between the mounting plates.

An inner housing side wall 152 extends throughout the length of housing 147 terminating in a top inwardly bent flange 153. An L-shaped retaining plate 154 (FIGS. 4 and 5) is adjustably mounted opposite and parallel with a portion of side wall 152 at the bottom of the housing to provide a passage 155 which is adjustable to conform to the width of pulley blank 57. A plurality of bars 156, 157 and 158 are welded to the ends of spaced brackets 159, and 161, respectively, to form a track extending throughout the'remainder of housing 147 along which the pulley blanks 57 'roll to the pickup station at the lower end of housing 147. Bracket 159 is bolted to a pair of angle plates 162 extending across the top of housing 147, and brackets 160 and 161 are mounted on housing bottom wall 148.

A stop pin163 (FIGS. 4 and 5) is mounted on inner side wall 152 to engage and maintain a pulley blank 57 at the pickup station as shown in FIG. 4. Discharge control cylinder means 164 is mounted on side wall 152 and has plunger means 165 extending through an opening 166 into the pulley discharge path formed by bars 156158. Retraction of plunger 165 for a preset time interval permits a single pulley blank 57 to roll from the left hand position of FIG. 4 downwardly to the right hand position thereof where the pulley blank comes to rest against stop pin 163 for pickup by fingers 132-133 .Of load gripper assembly 80.

The mounting of chute housing 147 on slide rods. 140.

and 141 readily permits the housing to be moved from its operating position of FIGS; 1 and 7 rearwardly in the direction of arrows A to permit easy access to the headstock and tailstock die assemblies 4 and 6.

The described mechanisms'and assemblies provide.

for, various independent and dependent movements in several directions, individually and between the components. These are summarized individually below for clarity.

Carriage assembly 16 provides for sliding movement of carriage 35 along slide rods 25 and 26. transversely with respectto the longitudinal axis of spinner apparatus 2. Carriage 35 moves between the pickup station or home position at the right hand end of assembly 16 as shown in FIG. 1, and the discharge station at the left hand end of assembly 16, as shown in FIG. 7. Piston means 40 moves carriage 35 between the pickup and discharge stations Slide assemblies 55 and 56 are mounted on carriage 35 for dependent or conjoint movement with carriage 35, as well as being independently movable with respect to each other on carriage 35. Slide assemblies 55 and 56 move between an extended position, as shown by assembly 56 in FIG. 8, and a retracted position, illustrated by assembly 56 in FIG. 7. This sliding movement is achieved and controlled by the slide piston means 67, and undercut slots 64 cooperating with angled ribs 65 of base pads 66 (FIG. 13).

Gripper assemblies 80 and 81 are mounted on the front or forward ends of slide assemblies 55 and 56, respectively, and move between the lowered or inner position of FIG. 9 and the raised or outer position of FIG. 10. This motion is achieved by means of guide rods 90 and 91 telescopically engaged in guide tubes 86 and 87, together with actuating piston means 88 and piston rods 97. The movements of gripper assemblies 80 and 81 are independent of each other and also are independent of the sliding movements of slide assemblies 55 and 56 and of carriage 35.

The movements of gripper fingers 113114 and 132133 between the gripping position of FIG. 9 and the release position of FIG. 10 are independently controlled by the finger control piston means 112. Likewise, the movements of the fingers of assembly 80 are independent of the movements of the fingers of assembly 81, both of which are independent of the movements of the other assemblies described above.

The operation of spinner loader equipment 1 and the coordinated movements of the components thereof are shown diagrammatically in FIGS. 24-29, with the paths of travel of the pulley blanks and spun pulleys, and of the load and unload finger means being shown in FIGS. and 31. FIG. 24 shows carriage at the'pulley blank pickup station with slide assembly 55 in retracted position and slide assembly 56 (full lines) in extended position. FIG. 25 shows load griper assembly 80 in lowered or inner position (full lines) with unload gripper assembly 81 shown in raised or outer position (full lines). Load fingers 132-133 are illustrated in gripping position clamping a pulley blank 57 at the discharge end of chute 15, with unload fingers 113 and 114 illustrated in release position.

Assume that a cycle of operation starts with the various components shown in the home positions of FIGS. 24 and 25, which correspond to point a of FIG. 30 and to point n of FIG. 31.

Load gripper assembly 80 moves vertically upwardly from its lowered position to its raised position (as shown by dot-dash lines in FIG. 25) and as indicated by line I (FIG. 30), and removes a pulley blank 57 from chute 15. Simultaneously with the movements of load assembly 80, unload gripper assembly 81 moves downwardly from its raised position to its lowered position (as shown by dotdash lines in FIG. 25) and as indicated by line I (FIG. 31 and grips a spun pulley 58 mounted on the spinner headstock die assembly.

Unload slide assembly 56 then moves horizontally rearwardly in the direction of Arrow B (FIG. 24) from extended to retracted position (dot-dash lines), andas shown by line H in FIG. 31. Immediately after movement of assembly 56 to its retracted position by piston means 67, carriage piston means is actuated to move carriage 35 in the direction of Arrow C (FIG. 24).

Simultaneously with the horizontal movement of carriage 35, load gripper assembly 80 moves downwardly from the raised dot-dash position of FIG. 25 to the lowered full line position of FIG. 27, and unload gripper assembly 81 moves upwardly from the lowered dot dash line position of FIG. 25 to the upper position of FIG. 27. The grasped pulley blank 57 and spun pulley 58 move in arcuate paths indicated by lines II and III (FIGS. 30 and 31), due to the simultaneous horizontal movement of carriage 35 with the vertical movement of gripper assemblies 80 and 81. Pulley blank 57 follows the path indicated by II from point b to point d in a vertical plane abcd, with spun pulley 58 following path III from point i to point k in a vertical plane ijkl.

Upon carriage 35 reaching the discharge station (left hand end of carriage assembly 16, FIGS. 26 and 27), load slide assembly 55 moves forwardly from retracted position to extended position by dot-dash lines as shown in FIG. 26, placing the pulley blank 57 on the headstock die assembly die assembly for a spinning operation. Load gripper assembly then moves vertically from lowered position to raised position as shown by dot-dash lines in FIG. 27. Corresponding with the placement of pulley blank 57 on the headstock, fingers 1 13-114 of assembly 81 are pivoted to release position by piston means 112, whereupon the spun pulley 58 drops into a collection receptable, conveyor or the like, indicated at (FIG. 7)

The movement of pulley blank 57 is illustrated further in FIG. 30 with the horizontal movement of blank 57 due to the movement of load slide assembly 80 being shown by line III between points d and I1, with the subsequent vertical movement of gripper assembly 80 being shown by line IV between points /1 and g. During these movements of slide assembly 55 and gripper assembly 80 indicated by lines Ill and IV (FIG. 30), the unload slide and gripper assemblies remain in their former positions as shown by the dash line in the coordination table of FIG. 32.

Immediately after pulley blank 57 is placed on the headstock die assembly and gripper assembly 80 moves to raised position, carriage 35 moves from its discharge position of FIG. 26 in the direction of Arrow D, towards the pulley blank pickup position of FIG. 28. Loan assembly 55 moves rearwardly from extended to retracted position, simultaneously with the horizontal movement of carriage 35. The load gripper fingers 132-133 follow a curved path indicated by line V (FIG. 30) from a point g to point b in a horizontal plane bcgf. Load slide assembly 55 reaches its retracted position simultaneously upon carriage 35 reaching the pickup station of FIGS. 28 and 29. Gripper assembly 80 then moves vertically downwardly from raised position (full line) to lowered position (dot-dash line) FIG. 29. This vertical movement of assembly 80 is indicated by line VI between points b and a of FIG. 30.

Unload slide assembly 81 moves from retracted to extended position as carriage 35 moves from the discharge station to the pickup station. The movement of unload gripper fingers 113-114 follow the path indicated by line IV (FIG. 31), between points k and n in a horizontal plane jkon.

The timing sequence is programmed so that assemblies 80 and 81 together with carriage 35 reach their home positions of FIGS. 24-25 upon completion of the spinning operation which is performed doing the movements of steps V, VI and IV of FIGS. 31 and 32. Thus, the load gripper assembly 80 is in its lowered position with fingers 132-133 gripping another pulley blank at the discharge end of chute 15 (point a, FIG. 30) and unload gripper mechanism 81 is in raised position with unload slide assembly 56 being in extended position (point n, FIG. 31) whereby unload fingers 113-114 are in position above the headstock die assembly for beginning another cycle of operation.

Pulley blank 57 and spun pulley 58 follow the curved arcuate paths within a vertical plane shown by lines II and III upon carriage 35 traveling from the pickup station to the discharge station due to the simultaneous ill vertical motions of assemblies 80 and 81 and the horizontal motions of carriage 35. Load and unload gripper fingers 132-1l4 follow the curved arcuate paths shown by lines V and lV' located within horizontal planes upon carriage 35 and returning to the pickup station from the discharge station. These curved paths arc due again to the simultaneous horizontal motions of slide assembly 55 and 56 and the horizontal movement of carriage 35.

This upward and downward motions of assemblies 80 and 81 are preferred in loading and unloading the pulley blank and spun pulleys on and from the headstock assembly as opposed to straight line horizontal travel from chute 16 to the headstock in order to clear and avoid contact with the various frame members and components of chute l6 and spinner 2. The horizontal movements of slide assemblies 55 and 56, likewise, are required to place and remove the pulley blank and spun pulley on and from the headstock die assembly.

The described sequence of operation when performed, although stated somewhat as a series of individual steps, is a continuous smooth movement of the various assemblies in timed sequence. Spinner loader equipment 1, thus enables pulley blanks 57 to be con tinuously supplied to the spinner headstock by slide assembly 80, and the finished spun pulleys 58 removed from the headstock by assembly 81 and deposited in a collection area 170, with assemblies 80 and 81 returning to the pickup and unload positions, respectively, of FlG. 24 simultaneously while the spinning operation is performed on a pulley blank.

Carriage piston means 40, slide assembly control piston means 67, gripper assembly piston means 88, and finger control piston means 112 are provided with internal switches (not shown) or external limit switches, such as switch 96 (FIG. 10), which are actuated when the various piston rods and assemblies reach their extended and retracted positions. The signals from these switches are supplied from the piston means and control switches to appropriate control mechanism which is programmed into a timed sequence. Premature actuation or non-actuation of a switch out of the timed sequence automatically trips a master control switch to stop the operation of spinner 2 and the feeder mechanism, to prevent damage to the equipment.

An operator need only actuate the spinner loader equipment 1 and spinner 2 and provide a supply of pulley blanks 57 to chute assembly in order continuously to produce a quantity of spun V-grooved pulleys 58. Chute assembly 15 preferably is arranged adjacent a supply hopper or magazine which automatically insures a continuous supply of pulley blanks within chute 15. Thus, a single operator may control and maintain surveillance over a plurality of spinners eliminating the prior manual loading of pulley blanks by an operator on the headstock die and the manual removal of the spun pulley after the spinning operation has been completed.

Although the positions of the various components and their relationships to each other are described as illustrated in the drawings, i.e., on a spinner 2 having a horizontal'axis and with slide assemblies 55 and 56 extending horizontally and gripper mechanisms 80 and 81 moving in vertical directions; the improved spinner loader equipment need not be limited to such directional motion. Spinner 2 may have a vertical axis with the headstock assembly extending vertically above the tailstock assembly, or vice versa, so that the loader equipment slide assemblies move vertically between retracted and extended position instead of moving horizontally as described, and as shown in the drawings. Likewise, when spinner 2 is positioned vertically, gripper mechanisms and 81 move horizontally between inner and outer positions instead of vertically between lowered and raised positions.

Spinner 2 and spinner loader equipment 1 can be placed in such various positions and operate efficiently due to the positive movement of the various components without relying on gravity for operation of the components. Although chute assembly 15 delivers pulley blanks 57 to the pickup station by gravity, positive means for delivery of pulley blanks to the pickup station may be used satisfactorily, if necessary, without affecting the operation of carriage assembly 16 and its various components.

The controls for the various components described above may be usual electrical, electronic, hydraulic, pneumatic controls, or a combination thereof, and then form no particular part of the invention except to provide the necessary control for these components coordinated with known spinner programming. Discharge cylinder 164 and plunger 165 of chute assembly 15, also preferably are connected with and are controlled by the timed sequential program of operation of spinner 2 and loader equipment 1, to insure that a pulley blank 57 is discharged at the proper time after removal of the lowermost pulley blank in chute 15 by assembly 80. This enables another pulley blank to arrive at a position for pickup by assembly 80 at the lower end of chute 15 when starting another cycle of operation.

In the foregoing description, certain terms have been used for brevity, clearness and understanding but no unnecessary limitations are to be implied therefrom beyond the requirements of the prior art,,because such terms are used for descriptive purposes and are intended to be broadly construed.

Moreover, the description and illustration of the invention is by way of example, and the scope of the invention is not limited to the exact details of the construction shown or described.

Having now described the features, discoveries and principles of the invention, the manner in which the improved spinner loader equipment is constructed, assembled, and operated, the characteristics of the new construction, and the advantageous, new and useful results obtained; the new and useful structures, devices, elements, arrangements, parts, and combinations are set forth in the appended claims.

We claim:

1. Apparatus for continuously feeding cup-shaped metal blanks from a supply of such blanks at a pickup station to a location between the headstock and tailstock die assemblies of a spinner, and for removing finished spun V-grooved pulleys from the spinner and depositing the spun pulleys at a discharge station including, carriage support means mounted on a spinner extending transversely with respect to the longitudinal axis of the spinner; carriage means movably mounted on the support means for reciprocating movement along said support means transversely to said longitudinal spinner axis between a pickup station and a discharge station; load and unload slide assemblies movably mounted on the carriage means for relative independent reciprocating movement on the carriage.

means in directions parallel to said longitudinal spinner axis; gripper means mounted on each slide assembly each movable with respect to the slide assembliesand carriage means; conveyor means for delivering cupshaped metal blanks to the pickup station; the load slide assembly gripper means being operative to grip and remove a metal blank at the pickup station from said conveyor means and to place the blank between spinner headstock and tailstock die assemblies by the combined relative movement of the load gripper means, the longitudinal movement of the load slide assembly, and the transverse movement of the carriage means; and the unload slide assembly gripper means being operative to grip and remove a spun pulley from between the spinner headstock and tailstock die assemblies and to deposit said pulley at the discharge station by the combined relative movement of the unload gripper means, the longitudinal movement of the unload slide assembly, andthe transverse movement of the carriage means; the unload gripper means and unload slide assembly movements being simultaneous and coordinated with the movements with the load gripper means and load slide assembly.

2. The construction defined in claim 1 in which the carriage support means includes a pair of spaced, parallel slide rods; in which the carriage means has a base; and in which a plurality of bearing blocks are mounted onthecarriage means base and are telescopically engaged with the slide rods for slidablysupporting the carriage means on the support means.

3. The construction defined in claim 2 in which piston means is mounted on one end of the carriage support means and extends longitudinally with respect to said support means; in which the piston means has a piston rod; and in which the extended end of the piston rod is attached to the carriage means base whereby actuation of the piston means moves said carriage means along the carriage support means.

4. The construction defined in claim 2 in which stop means are mounted on each end of the carriage support means; and in which said stop means engage the carriage means upon said carriage means arriving adjacent an end of the support means.

5. The construction defined in claim 4 in which the stop means are pneumatic, piston actuated shock absorbers.

6. The construction defined in claim 1 in which the carriage support means includes a generally U-shaped frame member mounted on the spinner; in which channel members extend upwardly from the ends of the frame member; and in which a crossmember extends between the channel members.

7. The construction defined in claim 1 in which each of the load and unload slide assemblies includes a base; in which rib means is formed on the carriage means; and in which the slide assembly bases are formed with slot means cooperating with said rib means for slidably mounting the slide assemblies on the carriage means.

8. The construction defined in claim 7 in which the slide assemblies each have a channel-like member with a web and a pair of spaced upwardly extending sides; in which the web is mounted on the slide assembly base; in which control piston means is mounted on the channel-like member between the spaced sides and operatively connected to the carriage means; and in which said piston means moves the slide assembly between extended and retracted positions.

9. The construction defined in claim 1 in which each of the slide assemblies includes piston means; in which the piston means is connected between the slide assembly and the carriage means, whereby actuation of the piston means moves the slide assembly transversely with respect to the carriage means and parallel to the longitudinal axis of thespinner.

10. The construction defined in claim 1 in which stop means is mounted on the carriage means; and in which said stop means engages the slide assemblies upon said assemblies reaching extended and retracted positions.

11. The constructiondefined in claim 1 in which plate means is mounted on the forward end of each slide assembly; in which guide tube means is mounted on said plate means; in which the gripper means includes guide rod means; and in which said guide rod means extend through the guide tube means for slidably mounting the gripper means on the slide assemblies.

12. The construction defined in claim 11 in which piston means is operatively connected between the guide rod means and the plate means to move the gripper means relatively with respect to the slide assemblies when said piston means is actuated.

13. The construction defined in claim 11 in which shock absorbing stop means is mounted on the plate means operative to engage the gripper means to limit the extent of travel of the gripper means.

14. The construction defined in claim 11 in which the plate means includes a pair of spaced mounting plates; in which the guide tube means consists of a pair of tubes extending between the spaced plates; in which the guide rod means consists of a pair of guide rods having apair of end plates attached to and extending between the ends of the guide rods; and in which piston means is mounted on one of the slide assembly mounting plates and is connected with one of the guide rod end plates to move said guide rods relatively with respect to the slide assembly when said piston means is actuated.

15. The construction defined in claim 14 in which shock absorbing stop means is mounted on each of the spaced slide assembly mounting plates; and in which the stop means engage a guide rod end plates to limit the travel of the gripper means with respect to the slide assemblies.

16. The construction defined in claim 14 in which finger means is mounted on one guide rod end plate; and in which second piston means is mounted on said one guide rod end plate and operatively connected to the finger means for pivotally moving said finger means between gripping and release positions.

17. The construction defined in claim 16 in which the finger means each includes yoke means and a pair of finger members pivotally mounted on the ends of the yoke means; and in which links operatively connect the second piston means to the finger members for pivoting said finger members between gripping and release positrons.

18. The construction defined in claim 17 in which roller means is mounted on the finger members of the unload gripper means; in which pad means is mounted on the finger members of the load gripper means; and in which said roller means and pad means are adapted to grip a spun pulley and pulley blank, respectively, when the finger members are in gripping position.

19. The construction defined in claim 1 in which the gripper means each include finger means mounted on an end of the gripper means and pivotally movable between gripping and release positions.

20. The construction defined in claim 19 in which each slide assembly includes guide tube. means mounted on the forward end of the slide assembly; in which each gripper means includes guide rod means telescopically engaged with the guide tube means for movably mounting said gripper means on said slide assembly; in which first piston means is operatively connected between each of the gripper means and therespective slide assembly for moving said grippermeans between first and second positions; in which the finger means are mounted on the guide rod means forrelative movement with said guide rod means; in which said finger means includes second piston means and a pair of spaced, pivotally mounted 'finger members; and in which said second piston means when actuated, moves the finger members between gripping and release positions. I

21. The construction defined in claim 1 in which the blank delivery conveyor means includes a chute located adjacent the spinner and pickup station; in which the chute extends transversely with respect to the longitudinal axis of the spinner and parallel with the carriage support means; and in which the chute is inclined downwardly toward the pickup station whereby blanks roll by gravity toward said pickup station.

22. The construction defined in claim 21 in which the chute includes means for releasing a single blank for discharge to the pickup station.

23. The construction defined in claim 22 in which the chute includes at least one side wall and a plurality of rods forming with said side wall a track along which the blanks roll; in which the release means is a plunger mounted on the side wall and adapted to project into the path of the moving blanks; and in which the plunger includes control means for retracting said plunger from the blank path to release a blank for delivery to the pickup station.

24. The construction defined in claim 21 in which the blank delivery conveyor means further includes rod means spaced from and extending parallel to the longitudinal axis of the spinner; in which the chute is mounted on the rod means; and in which there are means slidably mounting said rod means on the spin ner, whereby the chute is movably mounted with respect to the spinner.

25. The construction defined in claim 24 in which said rod means includes a pair of spaced parallel slide rods; and in which said rods are slidably mounted on bearing blocks mounted on the spinner.

26. Spinner loader construction for supplying metal blanks to a spinner and for removing spun V-grooved pulleys after spinning including, a carriage platform mounted on and extending transversely to the longitudinal axis of the spinner; a carriage siidably mounted on the platform and movable between first and second positions located on opposite sides of said longitudinal axis; load and unload slide assemblies movably mounted in spaced relationship on the carriage and movable between extended and retracted positions; the load slide assembly being aligned with the longitudinal axis of the spinner when the carriage means is in its sec ond position, and said unload slide assembly being aligned with said longitudinal axis when the carriage means is in its first position; gripper mechanism mounted on each slide assembly each movable between inner and outer positions; each gripper mechanism having finger means mounted thereon pivotally movable between release and gripping positions; conveyor means for delivering cupshaped metal blanks to a pickup station adjacent the spinner and said firstposition; the load slide assembly finger means when the carriageis at its first position being operatively mounted on its assembly to move to gripping position and to grip a metal blank at the pickup station from said conveyor means and upon movement of the load gripper mechanism from inner to outer position to remove the gripped blank from the pickup station; the carriage being operatively mounted to move fromits first position to its second position in coordination with movement of the load gripper mechanism from inner to outer and back to inner position; the load slide assembly upon arrival of the carriage at the second position being operative to move from retracted to extended po sition and to deposit the gripped blank on the spinner headstock dies; the unload slide assembly finger means when the carriage is at its first position being operatively mounted on its assembly to move to gripping position and to grip a spun V-grooved pulley at the spinner headstock dies and upon movement of the unload slide assembly from extended to retractedposition to remove the gripped spun pulley from said dies; the unload gripper mechanism moving from inner to outer position as the carriage moves from first to second position; the unload gripper mechanism finger means upon arrival of the carriage at second position being operative to move to release position to release the spun pulley and thereby to deposit the spun pulley in a collection container; and said load slide assembly and gripper mechanism movements being substantially simultaneous with corresponding movements of said unload slide assembly and. unload gripper mechanism movements.

27. The construction defined in claim 26 in which the carriage platform includes rod means; in which the carriage has a base plate and bearing blocks mounted on the bottom thereof, in which the bearing blocks are journaled on the slide rod means for movement of the carriage along the platform; and in which piston means is operatively connected between the platform and carriage operative to move saidcarriage along the platform.

28. The construction defined in claim'26 in which the slide assemblies each have a base formed with slideway means for slidably mounting said assemblies on the platform; and in which piston means is operatively connected between each of the slide assemblies and the carriage platform operative to move the slide assemblies along the slideway means transversely with respect to the platform and parallel to the longitudinal axis of the spinner.

29. The construction defined in claim 26 in which the gripper mechanisms each include first piston means 0perative connected between the gripper mechanism and slide assembly whereby actuation of said first piston means moves said gripper mechanism relatively with respect to the slide. assembly; and in which second piston means are operatively connected between the finger means and gripper mechanism whereby actuation of said second piston means operates said finger means.

30. The construction defined in claim 29 in which the finger means includes a yoke and a pair of finger members pivotally mounted on the yoke; and in which said finger members are operated by the second piston

Claims (30)

1. Apparatus for continuously feeding cup-shaped metal blanks from a supply of such blanks at a pickup station to a location between the headstock and tailstock die assemblies of a spinner, and for removing finished spun V-grooved pulleys from the spinner and depositing the spun pulleys at a discharge station including, carriage support means mounted on a spinner extending transversely with respect to the longitudinal axis of the spinner; carriage means movably mounted on the support means for reciprocating movement along said support means transversely to said longitudinal spinner axis between a pickup station and a discharge station; load and unload slide assemblies movably mounted on the carriage means for relative independent reciprocating movement on the carriage means in directions parallel to said longitudinal spinner axis; gripper means mounted on each slide assembly each movable with respect to the slide assemblies and carriage means; conveyor means for delivering cupshaped metal blanks to the pickup station; the load slide assembly gripper means being operative to grip and remove a metal blank at the pickup station from said conveyor means and to place the blank between spinner headstock and tailstock die assemblies by the combined relative movement of the load gripper means, the longitudinal movement of the load slide assembly, and the transverse movement of the carriage means; and the unload slide assembly gripper means being operative to grip and remove a spun pulley from between the spinner headstock and tailstock die assemblies and to deposit said pulley at the discharge station by the combined relative movement of the unload gripper means, the longitudinal movement of the unload slide assembly, and the transverse movement of the carriage means; the unload gripper means and unload slide assembly movements being simultaneous and coordinated with the movements with the load gripper means and load slide assembly.
2. The construction defined in claim 1 in which the carriage support means includes a pair of spaced, parallel slide rods; in which the carriage means has a base; and in which a plurality of bearing blocks are mounted on the carriage means base and are telescopically engaged with the slide rods for slidably supporting the carriage means on the support means.
3. The construction defined in claim 2 in which piston means is mounted on one end of the carriage support means and extends longitudinally with respect to said support means; in which the piston means has a piston rod; and in which the extended end of the piston rod is attached to the carriage means base whereby actuation of the piston means moves said carriage means along the carriage support means.
4. The construction defined in claim 2 in which stop means are mounted on each end of the carriage support means; and in which said stop means engage the carriage means upon said carriage means arriving adjacent an end of the support means.
5. The construction defined in claim 4 in which the stop means are pneumatic, piston actuated shock absorbers.
6. The construction defined in claim 1 in which the carriage support means includes a generally U-shaped frame member mounted on the spinner; in which channel members extend upwardly from the ends of the frame member; and in which a crossmember extends between the channel members.
7. The construction defined in claim 1 in which each of the load and unload slide assemblies includes a base; in which rib means is formed on the carriage means; and in which the slide assembly bases are formed with slot means cooperating with said rib means for slidably mounting the slide assemblies on the carriage means.
8. The construction defined in claim 7 in which the slide assemblies each have a channel-like member with a web and a pair of spaced upwardly extending sides; in which the web is mounted on the slide assembly base; in which control piston means is mounted on the channel-like member between the spaced sides and operatively connected to the carriage means; and in which said piston means moves the slide assembly between extended and retracted positions.
9. The construction defined in claim 1 in which each of the slide assemblies includes piston means; in which the piston means is connected between the slide assembly and the carriage means, whereby actuation of the piston means moves the slide assembly transversely with respect to the carriage means and parallel to the longitudinal axis of the spinner.
10. The construction defined in claim 1 in which stop means is mounted on the carriage means; and in which said stop means engages the slide assemblies upon said assemblies reaching extended and retracted positions.
11. The construction defined in claim 1 in which plate means is mounted on the forward end of each slide assembly; in which guide tube means is mounted on said plate means; in which the gripper means includes guide rod means; and in which said guide rod means extend through the guide tube means for slidably mounting the gripper means on the slide assemblies.
12. The construction defined in claim 11 in which piston means is operatively connected between the guide rod means and the plate means to move the gripper means relatively with respect to the slide assemblies when said piston means is actuated.
13. The construction defined in claim 11 in which shock absorbing stop means is mounted on the plate means operative to engage the gripper means to limit the extent of travel of the gripper means.
14. The construction defined in claim 11 in which the plate means includes a pair of spaced mounting plates; in whIch the guide tube means consists of a pair of tubes extending between the spaced plates; in which the guide rod means consists of a pair of guide rods having a pair of end plates attached to and extending between the ends of the guide rods; and in which piston means is mounted on one of the slide assembly mounting plates and is connected with one of the guide rod end plates to move said guide rods relatively with respect to the slide assembly when said piston means is actuated.
15. The construction defined in claim 14 in which shock absorbing stop means is mounted on each of the spaced slide assembly mounting plates; and in which the stop means engage a guide rod end plates to limit the travel of the gripper means with respect to the slide assemblies.
16. The construction defined in claim 14 in which finger means is mounted on one guide rod end plate; and in which second piston means is mounted on said one guide rod end plate and operatively connected to the finger means for pivotally moving said finger means between gripping and release positions.
17. The construction defined in claim 16 in which the finger means each includes yoke means and a pair of finger members pivotally mounted on the ends of the yoke means; and in which links operatively connect the second piston means to the finger members for pivoting said finger members between gripping and release positions.
18. The construction defined in claim 17 in which roller means is mounted on the finger members of the unload gripper means; in which pad means is mounted on the finger members of the load gripper means; and in which said roller means and pad means are adapted to grip a spun pulley and pulley blank, respectively, when the finger members are in gripping position.
19. The construction defined in claim 1 in which the gripper means each include finger means mounted on an end of the gripper means and pivotally movable between gripping and release positions.
20. The construction defined in claim 19 in which each slide assembly includes guide tube means mounted on the forward end of the slide assembly; in which each gripper means includes guide rod means telescopically engaged with the guide tube means for movably mounting said gripper means on said slide assembly; in which first piston means is operatively connected between each of the gripper means and the respective slide assembly for moving said gripper means between first and second positions; in which the finger means are mounted on the guide rod means for relative movement with said guide rod means; in which said finger means includes second piston means and a pair of spaced, pivotally mounted finger members; and in which said second piston means when actuated, moves the finger members between gripping and release positions.
21. The construction defined in claim 1 in which the blank delivery conveyor means includes a chute located adjacent the spinner and pickup station; in which the chute extends transversely with respect to the longitudinal axis of the spinner and parallel with the carriage support means; and in which the chute is inclined downwardly toward the pickup station whereby blanks roll by gravity toward said pickup station.
22. The construction defined in claim 21 in which the chute includes means for releasing a single blank for discharge to the pickup station.
23. The construction defined in claim 22 in which the chute includes at least one side wall and a plurality of rods forming with said side wall a track along which the blanks roll; in which the release means is a plunger mounted on the side wall and adapted to project into the path of the moving blanks; and in which the plunger includes control means for retracting said plunger from the blank path to release a blank for delivery to the pickup station.
24. The construction defined in claim 21 in which the blank delivery conveyor means further includes rod means spaced from and extending parallel to the longitudinal axis of the spinner; in which the chute is moUnted on the rod means; and in which there are means slidably mounting said rod means on the spinner, whereby the chute is movably mounted with respect to the spinner.
25. The construction defined in claim 24 in which said rod means includes a pair of spaced parallel slide rods; and in which said rods are slidably mounted on bearing blocks mounted on the spinner.
26. Spinner loader construction for supplying metal blanks to a spinner and for removing spun V-grooved pulleys after spinning including, a carriage platform mounted on and extending transversely to the longitudinal axis of the spinner; a carriage slidably mounted on the platform and movable between first and second positions located on opposite sides of said longitudinal axis; load and unload slide assemblies movably mounted in spaced relationship on the carriage and movable between extended and retracted positions; the load slide assembly being aligned with the longitudinal axis of the spinner when the carriage means is in its second position, and said unload slide assembly being aligned with said longitudinal axis when the carriage means is in its first position; gripper mechanism mounted on each slide assembly each movable between inner and outer positions; each gripper mechanism having finger means mounted thereon pivotally movable between release and gripping positions; conveyor means for delivering cupshaped metal blanks to a pickup station adjacent the spinner and said first position; the load slide assembly finger means when the carriage is at its first position being operatively mounted on its assembly to move to gripping position and to grip a metal blank at the pickup station from said conveyor means and upon movement of the load gripper mechanism from inner to outer position to remove the gripped blank from the pickup station; the carriage being operatively mounted to move from its first position to its second position in coordination with movement of the load gripper mechanism from inner to outer and back to inner position; the load slide assembly upon arrival of the carriage at the second position being operative to move from retracted to extended position and to deposit the gripped blank on the spinner headstock dies; the unload slide assembly finger means when the carriage is at its first position being operatively mounted on its assembly to move to gripping position and to grip a spun V-grooved pulley at the spinner headstock dies and upon movement of the unload slide assembly from extended to retracted position to remove the gripped spun pulley from said dies; the unload gripper mechanism moving from inner to outer position as the carriage moves from first to second position; the unload gripper mechanism finger means upon arrival of the carriage at second position being operative to move to release position to release the spun pulley and thereby to deposit the spun pulley in a collection container; and said load slide assembly and gripper mechanism movements being substantially simultaneous with corresponding movements of said unload slide assembly and unload gripper mechanism movements.
27. The construction defined in claim 26 in which the carriage platform includes rod means; in which the carriage has a base plate and bearing blocks mounted on the bottom thereof, in which the bearing blocks are journaled on the slide rod means for movement of the carriage along the platform; and in which piston means is operatively connected between the platform and carriage operative to move said carriage along the platform.
28. The construction defined in claim 26 in which the slide assemblies each have a base formed with slideway means for slidably mounting said assemblies on the platform; and in which piston means is operatively connected between each of the slide assemblies and the carriage platform operative to move the slide assemblies along the slideway means transversely with respect to the platform and parallel to the longitudinal axis of the spinner.
29. The construction defined in claim 26 in which the gripper mechanisms each include first piston means operative connected between the gripper mechanism and slide assembly whereby actuation of said first piston means moves said gripper mechanism relatively with respect to the slide assembly; and in which second piston means are operatively connected between the finger means and gripper mechanism whereby actuation of said second piston means operates said finger means.
30. The construction defined in claim 29 in which the finger means includes a yoke and a pair of finger members pivotally mounted on the yoke; and in which said finger members are operated by the second piston means.
US3910423A 1974-10-10 1974-10-10 Spinner loader equipment Expired - Lifetime US3910423A (en)

Priority Applications (1)

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US3910423A US3910423A (en) 1974-10-10 1974-10-10 Spinner loader equipment

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US3910423A US3910423A (en) 1974-10-10 1974-10-10 Spinner loader equipment
CA 229015 CA1037981A (en) 1974-10-10 1975-06-10 4-dimensional movement in loader-unloader service to a lathe-type spinner

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997064A (en) * 1974-04-02 1976-12-14 Kabushiki Kaisha Daini Seikosha Loading device
US4090617A (en) * 1976-02-10 1978-05-23 Seiko Seiki Kabushiki Kaisha Loading and unloading device for a workpiece
US4349310A (en) * 1977-12-23 1982-09-14 L. Schuler Gmbh Unloading device for a press
US4352627A (en) * 1978-01-05 1982-10-05 L. Schuler Gmbh Loading device for a press
US4404829A (en) * 1980-01-10 1983-09-20 Vanco Dorakovski Method and apparatus for the manufacture of pulleys
EP0191189A1 (en) * 1984-12-19 1986-08-20 Kobe Steel Limited Spinning type multiple roller forming machine
WO1991009695A1 (en) * 1989-12-29 1991-07-11 Amada Company, Limited A device for manipulating sheet metal pieces
US6505490B2 (en) 2001-02-28 2003-01-14 The Gates Corporation Method of forming a sheet metal cup without a mandrel
CN1304135C (en) * 2004-11-18 2007-03-14 胡德林 Barrel rotation processing method and apparatus
WO2008107420A1 (en) * 2007-03-07 2008-09-12 Maus S.P.A Manipulating device for lathes, in particular for vertical turret lathes, and a lathe including said device
US20090078015A1 (en) * 2005-03-31 2009-03-26 Kayaba Industry Co., Ltd. Closing Method and Closing Machine
US20090139292A1 (en) * 2005-03-31 2009-06-04 Kayaba Industry Co., Ltd. Closing Method and Closing Machine
US20090211731A1 (en) * 2005-03-31 2009-08-27 Kayaba Industry Co., Ltd Cooling Method and Cooling Device
CN102554002A (en) * 2012-01-09 2012-07-11 无锡南天安全设施有限公司 Numerical control spinning device for overlong thin-wall tube fitting model without mandril
CN103801607A (en) * 2014-01-17 2014-05-21 宁波爱用机械科技有限公司 Spinning machine with automatic feeding and discharging function

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892431A (en) * 1955-02-17 1959-06-30 Automatic Steel Products Inc Apparatus for forming multi-groove pulleys
US3760956A (en) * 1971-08-23 1973-09-25 Burch Controls Inc Industrial robot
US3809257A (en) * 1971-08-06 1974-05-07 A Klancnik Machine tool feed apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892431A (en) * 1955-02-17 1959-06-30 Automatic Steel Products Inc Apparatus for forming multi-groove pulleys
US3809257A (en) * 1971-08-06 1974-05-07 A Klancnik Machine tool feed apparatus
US3760956A (en) * 1971-08-23 1973-09-25 Burch Controls Inc Industrial robot

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997064A (en) * 1974-04-02 1976-12-14 Kabushiki Kaisha Daini Seikosha Loading device
US4090617A (en) * 1976-02-10 1978-05-23 Seiko Seiki Kabushiki Kaisha Loading and unloading device for a workpiece
US4349310A (en) * 1977-12-23 1982-09-14 L. Schuler Gmbh Unloading device for a press
US4352627A (en) * 1978-01-05 1982-10-05 L. Schuler Gmbh Loading device for a press
US4404829A (en) * 1980-01-10 1983-09-20 Vanco Dorakovski Method and apparatus for the manufacture of pulleys
EP0191189A1 (en) * 1984-12-19 1986-08-20 Kobe Steel Limited Spinning type multiple roller forming machine
WO1991009695A1 (en) * 1989-12-29 1991-07-11 Amada Company, Limited A device for manipulating sheet metal pieces
US5345806A (en) * 1989-12-29 1994-09-13 Amada Company, Limited Device for manipulating sheet metal pieces
US6505490B2 (en) 2001-02-28 2003-01-14 The Gates Corporation Method of forming a sheet metal cup without a mandrel
CN1304135C (en) * 2004-11-18 2007-03-14 胡德林 Barrel rotation processing method and apparatus
US8297097B2 (en) * 2005-03-31 2012-10-30 Kayaba Industry Co., Ltd. Closing method and closing machine
US20090078015A1 (en) * 2005-03-31 2009-03-26 Kayaba Industry Co., Ltd. Closing Method and Closing Machine
US20090139292A1 (en) * 2005-03-31 2009-06-04 Kayaba Industry Co., Ltd. Closing Method and Closing Machine
US20090211731A1 (en) * 2005-03-31 2009-08-27 Kayaba Industry Co., Ltd Cooling Method and Cooling Device
US8092612B2 (en) * 2005-03-31 2012-01-10 Kayaba Industry Co., Ltd. Cooling method and cooling device
WO2008107420A1 (en) * 2007-03-07 2008-09-12 Maus S.P.A Manipulating device for lathes, in particular for vertical turret lathes, and a lathe including said device
CN102554002A (en) * 2012-01-09 2012-07-11 无锡南天安全设施有限公司 Numerical control spinning device for overlong thin-wall tube fitting model without mandril
CN103801607A (en) * 2014-01-17 2014-05-21 宁波爱用机械科技有限公司 Spinning machine with automatic feeding and discharging function

Also Published As

Publication number Publication date Type
CA1037981A (en) 1978-09-05 grant
CA1037981A1 (en) grant

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