US3299455A - Heel and sole trimmer - Google Patents

Heel and sole trimmer Download PDF

Info

Publication number
US3299455A
US3299455A US406234A US40623464A US3299455A US 3299455 A US3299455 A US 3299455A US 406234 A US406234 A US 406234A US 40623464 A US40623464 A US 40623464A US 3299455 A US3299455 A US 3299455A
Authority
US
United States
Prior art keywords
carriage
clamping
soles
sole
framework
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US406234A
Other languages
English (en)
Inventor
John A Harrington
Robert K Allwardt
Burke E Porter
Robert J Wass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wolverine World Wide Inc
Original Assignee
Wolverine World Wide Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wolverine World Wide Inc filed Critical Wolverine World Wide Inc
Priority to US406234A priority Critical patent/US3299455A/en
Priority to GB42819/65A priority patent/GB1066417A/en
Priority to AT951365A priority patent/AT283160B/de
Priority to CH1447165A priority patent/CH442075A/de
Priority to BE671286D priority patent/BE671286A/xx
Priority to FR35908A priority patent/FR1459382A/fr
Priority to ES0318872A priority patent/ES318872A1/es
Priority to NL6513760A priority patent/NL6513760A/xx
Priority to DE19651685504 priority patent/DE1685504A1/de
Application granted granted Critical
Publication of US3299455A publication Critical patent/US3299455A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D87/00—Edge or heel cutters; Machines for trimming the heel breast
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D27/00—Machines for trimming as an intermediate operation
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D29/00—Machines for making soles from strips of material

Definitions

  • This invention relates to a shoe sole and heel trimming machine, and more particularly to apparatus for automatically peripherally trimming a plurality of shoe soles lwith or without attached heels, prior -to attachment thereof to the shoes.
  • Another object of this invention is to provide a sole edge trimming apparatus effecting the desired rounded upper edge corner by trimming simultaneously with edge trimming, yet While holding and trimming 1a plurality of soles simultaneously.
  • FIG. 1 is a perspective View of the front and one end of the novel apparatus
  • FIG. 2 is a plan view of the apparatus
  • FIG. 3 is an end fragmentary elevational view of the apparatus, viewed from the opposite end as that shown in FIG. l;
  • FIG. 4 is a fragmentary, sectional, elevational view taken on plane IVIV of FIG. 2;
  • FIG. 5 is a fragment-ary elevational view taken from the direction V indicated in FIG. 1;
  • FIG. 6 is a fragmentary perspective view taken from the direction VI indicated by the arrow in FIG. 1;
  • FIG. 7 is a fragmentary perspective view of the end of the apparatus illustrated in FIG. 3, but showing the carriage shifted into trimming condition;
  • FIG. 8 is a plan, enlarged, sectional view of the sole spacer and spacer hooking mechanism of the apparatus
  • FIG. 9 is a sectional view of the speed control timing mechanism illustrated in FIG. 5 of the apparatus.
  • FIG. 10 is a sectional view of the apparatus in FIG. 9 taken on plane X--X;
  • FIGS. 11A and 11B cooperatively form a schematic circuit diagram of the control system for the apparatus
  • FIG. 12 is a diagrammatic plan representation of a sole trimming tool during operation steps.
  • the complete sole trimming machine 10 (FIG. l) basically is a double mechanism with a pair of like areas including two stackers, two loaders, two forming tools mounted on two spindles, etc. It will be obvious from a study of the following description that one of these lcould be employed at a time, or alternatively, more than two.
  • Framework Supporting structure for this machine may be varied in detail.
  • it comprises 1an elongated structure 50 made up of tubular frame stock which includes a plurality of four vertical corner Ilegs 52, upper and lower cross supports 54 in the back and 56 in the front, and transverse interconnecting beams 58 between the front and back frame portions.
  • the stacking and loading occurs adjacent the front end of the framework while the trimming occurs within the confines of the framework adjacent the back and thereof.
  • Stack retention means Four stacks of joined untrimmed shoe soles and heels are included on the particular form of the machine illustrated.
  • the stack retention means 14, 16, 20 and 22 are formed by a plurality of vertical end plates.
  • plates 60 and 62 form the end of stack holder 16, supplemented by -a pair of front flange plates 64 and 66 connected transversely thereto.
  • the stack holders cooperate in pairs, i.e. 14 and 16, and 20 and 22. In each pair one retains right foot soles, erg. S1, and the adjacent one retains left foot soles, placed bottom side up.
  • these retention means are kept filled by a workman who inserts them from the top.
  • Stacker advance means For convenience one advance means is utilized for all four stacks. Actually, the soles in the stacking retention means 16 and 22 are shifted laterally first before being advanced to the clamp. Stacks 14 and 20 are directly in line with the respective loading means.
  • the stack shifting means moves laterally, transverse to the direction of the loading means. More specifically, it shifts soles S1 and S3 (FIG. 2) across the front of the machine to place them directly beneath soles S2 and S4. This is achieved with a fluid cylinder 70 aflixed to the framework in the front, and having its extended rod 72 (FIG. 1) attached to a slider 74.
  • the slider has a vertical pushing surface 86 adjacent stack 16 and a vertical pushing surface 88 adjacent stack 22. It shifts on fixed guide rods 76 to push one sole from the bottom of stack 16 and one from the bottom of stack 22 into the loader. ⁇ This shifter is shown in its retracted position in FIG. 2 and in its extended position in FIG. 1.
  • Each of the loaders 18 and 24 comprises a reciprocable device having a pair of side plates, for example plates 90 ⁇ and 92 (FIGS. 1 and 2) on loader 18.
  • the inner ends of these plates serve to push a pair of aligned upper and lower soles (in the position ofl S2 in FIG. 2) into the clamping mechanism 38 (FIGS. 2,. 5, and 6).
  • a fixed support plate 96 (FIGS. 1 and 2) is mounted beneath sides 90 and 92 to guide the upper and lower soles from the front of the framework into the clamping mechanism while holding them in spaced relation.
  • the side plates move past fixed plate 96.
  • These plates 90 and 92 are interconnected by supports 94 (FIG. 1). These elements are shifted by fluid cylinder 120 (FIGS.
  • Loader 24 includes corresponding side plates 90 and 92', with intermediate fixed element 96', and
  • clamping mechanism 36 includes a vertical liuid cylinder 136 attached to carriage 30, and having its rod extend out the lower end thereof. The rod is mounted to upper clamp plate 138.
  • the lower clamp plate 140 is attached to a collar 142 having its shaft extend down through the base of carriage 30 into a differential gear housing 144.
  • the clamp plate 138 includes a subplate 139 shorter than plate 138 so that the two can interfit with a shoe sole and heel combination S2.
  • the lower plate 140 also includes an upper subplate 141 which enables it to interfit with the connected sole and heel S1.
  • This spacer plate 150 is shaped like the soles to be trimmed, except smaller in diameter, as are the clamping plates. It has a unique interfit with the 4respective guide and support plates 96 and 96' for each clamping means 38 and 36.
  • spacer plate 150 has alongone of its sides a pair of female recesses 160 and 162, each including inserts 164 and 166 defining hooking ledges therein. These cooperate with a pair of spaced hooking fingers 170 and 172, both pivotally mounted to support 96 on vertical pivot axes 174 and 176. These hooking fingers have on the outer ends thereof a pair of hooks which cooperate with inserts 164 and 166 to retain the spacer 150 on the ldiagonal end of support 96', and specifically, on the extended ends of fingers 170 and 172.
  • Clamp rotation drive mechanism The lower clamping plates on each of the clamping mechanisms are rotatably driven.
  • the upper clamping plates are rotatable with respect to clamping cylinders 136 and 136.
  • An elongated shaft 202 extends through both of these differentials. It is supported on bearing 204 attached to the carriage on one end, and gear box 206 attached to the carriage on the opposite end (FIGS. 2 and 5).
  • vertical template 208 shaped like the final trimmed sole.
  • Gear box 206 On the opposite end of the shaft is a two lobed rotational cam 210 (FIG. 5) and (FIG. 4).
  • Gear box 206 also receives the drive shaft of an electric motor 214 attached to carriage 30.
  • This motor is driven electrically by power which passes through a potentiometer or rheostat POTl (FIGS. 5, 9, and l0).
  • This potentiometer is controlled by movement of cam 210. More specifically, as the cam rotates, it reciprocates cam follower 218 (FIG. 5) within housing 220 to reciprocate gear rack 222 (FIGS. 9 and l0), which is biased outwardly toward the cam by a compression spring 224. Longitudinal movement of the gear rack causes rotational movement of a spur gear 226 intermeshed with the rack.
  • This spur gear is mounted on a shaft of the potentiometer POT1 to rotate it and thus vary the current to motor 214.
  • cam has two elongated lobes generally opposite to each other, especially conligurated, and intermediate portions of less radial extent. Depression of cam follower 218 into the housing by these individual lobes increases the resistance of the potentiometer, and thus decreases the power to motor 214 to slow its action. Consequently, this decreases lor increases the rotational speed of the output shaft of the motor and thus of the main clamp rotation drive shaft 202 from this motor. Thus, rotation of the clamping mechanism is controlled in speed throughout the entire revolution.
  • Motor 214 is reversible. It is initially operated for a fraction of a revolution of the clamping mechanism in reverse direction, and then subsequently operated for the fraction plus a total 360 revolution, to achieve a smooth cutting action.
  • the cutting tools contact the soles when the soles are moving in the forward rotation and the tools start in on a generally tangential basis. This is described more specifically hereinafter.
  • Template 208 on the opposite end of drive shaft 202 controls the carriage position with respect to the forming tools at rotation occurs, in respect to the clamping means rotation. This also will be explained more fully hereinafter.
  • Carriage Carriage 30 supports the clamping mechanisms, the drive means therefor, the driving motor, and the controlling rheostat.
  • the carriage is elongated from end to end of the machine. It shifts back and forth between the front, and rear of ythe frame.
  • the opposite ends are slidable mounted ⁇ on fixed track guideways 240 and 242 on the ends lof the frame.
  • the carriage has roller wheels 244 and 246 above and below each of these tracks. Its reciprocation is caused Iby fluid cylinder 250 attached fixedly to the back of frame 50 (FIG. 2), and having its rod 252 extending into engagement with the center of carriage 30, so that extension of the cylinder returns the carriage to its initial loading position, and contraction of the cylinder moves the carriage toward forming tools 32 and 34.
  • template 208 When the carriage is near the forming tools, its movement is ⁇ controlled by template 208. More specifically, when the template moves from the phantom line position in FIG. 7 to the solid line position as the carriage is Mounted to the extended end of shaft 202 is a 'moved into active trimming relationship, the Atemplate moves into engagement with a cam ifollower 270.
  • the follower is rollably m-ounted on the end of a reciprocable shaft 272 extending into a tracer -control valve 274.
  • This valve has four main fluid connections 276, 278, 280 and 282 to opposite sides thereof, in pairs.
  • valve 284 opens and closes respective ones of these passageways to allow fluid flow from a pressurized source or pump to the opposite ends of cylinder 250 (FIG. 2) to controllably reciprocate the cylinder back and forth in slave fashion.
  • a pressurized source or pump to the opposite ends of cylinder 250 (FIG. 2) to controllably reciprocate the cylinder back and forth in slave fashion.
  • cam follower 270 is pressed to reciprocate a small fraction of an inch inwardly of the valve, uid pressure flow to the rear end of cylinder 250 is increased and that to the front end is decreased so that the cylinder extends a proportionate amount. This pushes the carr-iage 30 away from the forming tools the exact required amount.
  • This follower or slave action is continuous, and activated by slight changes in pressure on the cam follower by the rotating template.
  • the carriage continually moves toward and away from the forming tools in exact controlled fashion as the clamping means on the retained soles and heels rotate adjacent the forming tools. Consequently, the position of the workpieces with respect to the fixed, but rotating forming tools is exactly and accurately controlled.
  • Two forming tool mechanisms 32 and 34 are here utilized, as explained previously. Each comprises a rotational spindle assembly including an outer housing 250 aiiixed to the back of the framework, and an inner rotational shaft 252 supported on bearings in the housing. A drive pulley 254 is attached to the upper end of the shaft. A pair of spaced rotational cutters 256 and 258 is secured to its lower end of the shaft by nut 260. Each of these cutters includes a plurality of cutting teeth.
  • the upper cutter 256 has an outwardly curved and projecting lower cutting edge.
  • the lower cutter has an outwardly curved and projecting upper cutting edge.
  • edges are spaced from each other an amount suicient to curve the edges of the spaced clamped soles as the peripheral edge is being trimmed. This enables the upper and lower clamped soles on the clamping mechanism to not only be peripherally trimmed, but edge beveled at -the same time with the smooth required curvature.
  • the pulleysfor the spindles are driven by belts 264 from motor pulleys 266 of a pair of electrical motors M1 and M2.
  • Suitable Ventilating liexible ducts 270 may be employed adjacent each of the cutters.
  • FIGS. 11A and 11B The -circuitry illustrated in FIGS. 11A and 11B will be described in relation to one operational sequence thereof. From this, the cir-cuit diagram will be relatively obvious to one having ordinary skill in the art. (The complete circuit may be formed for study by placing the sheet containing FIG. 11A above the sheet containing FIG. 11B and aligning the arrows.)
  • the circuit includes two spindle motors M1 and M2 and a fluid pump motor, M3. These are connected across three lines L1, L2 and L3 of 440 volts, three phase, sixty cycle power. These lines are also connected across transformer TR to supply lower voltage power to the control circuitry.
  • the leads 100 and 102 supply power to the various relays and other switching mechanisms controlling the circuitry.
  • the machine is started by actuating the spindles with push button switch FB2, which is in electrical series with an oil level safety switch 1LS, air pressure safety switch IPS, actuating relay 1M, and normally closed overload relays OL-1.
  • Relay contacts 1M in line 2 of the circuit activate solenoid A to open a valve for the lubricant.
  • push button switch PB3 is depressed to activate the hydraulic pump, which is in electrical seriesr with relay contacts I2M and normally closed overload relays OL-Z.
  • Relay 2M actuates its contacts to hold it in circuit.
  • An indicator light 106 is then lit.
  • Push button switch PBS in line 14 is closed to start the operating cycle.
  • each line of the circuit is numbered, i.e. 1-49.
  • relay CRA when a particular relay in that line is activated, it closes or opens contacts in other respective lines indicated in parentheses.
  • relay CRA when a particular relay in that line is activated, it closes contacts in lines 15, 16 and 23.
  • the contacts in line 15 hold the circuit in when switch PBS is released.
  • the circuit across the normally closed relay contacts 11CR is completed to activate relay ICR. This in turn closes its contacts in lines 17, 41, and 44.
  • the closed contacts in line 17 hold the relay in.
  • Line 44 includes solenoid valve B which is actuated and allows fluid pressure to be exerted on the rear end of stacker cylinder 70, causing the stacker to move forwardly across the front of the machine and shift two soles S1 and S3 from under the stacks in holders 16 and 22 to a position under plates 96 and 96', and under and spaced from soles S2 and S4.
  • limit switch SLS in line 23 As the stacker moves, it closes limit switch SLS in line 23. If the tables are then in the proper load position, i.e. the clamps and their spacer plates are properly oriented, limit switch 12LS in line 40 would be closed. This holds relay 10CR closed. Contacts 10CR in line 43 then being closed, relay 12CR is active. This closes contacts in line 23, which then completes a circuit, providing limit switch SLS is closed by the shifter.
  • Relay 8 CR locks itself in through the contacts in line 35.
  • the contacts in line 19 are closed also.
  • Contacts closing in line 42 bring in relay 11CR to close its contacts in line 25. Since the contacts SCR in line 25 are closed, the relay 4CR in line 25 is actu-ated. It closes its contacts in line 47 to actuate the clamps through solen-oid valve E controlling the clamping fluid cylinders.
  • the contacts 4CR -in line V26 lock in this relay.
  • the relay 11CR holds itself in through contacts ICR in line 41, once relay 11CR is brought in by relay SCR. Shifting of the clamps closes the limit switch 2PS in line 19. This brings in relay 2CR since contacts SCRA were previously closed. Closing of contacts 2CR in line 20 does not close this circuit since contacts 12CR -in this line .are still open, and limit switch 4LS in lines 21 is open since the carriage has not yet moved and returned.
  • Closing of contacts ZCR actuates solenoid valve D in l-ine 46 to unhook the hooking fingers from the spacers or separator plate in the clamping mechanisms. As the hook-s move out they actuate limit switch 3PS in line 37, and actuate timer IT to delay carriage movement momentarily and give the hooks time to move out first. Closing of the contacts 1T in line 26 occurs and relay 4CR is -interlooked in to hold this circuit, since the relay SCR will subsequently be dropped out.
  • the relay timer IT opens in line 23 to drop out relay SCR in this line and cause the loader to return to its initial position. Once it has returned, it opens its switch in line 17 which it previously closed, allowing the stacker to return. The stacker is purposely held in until the loader returns, since return of the loader transverse to the stacker plate would cause a con-iiict of the mechanism.
  • the timer relay IT closes the contacts in l-ine 28. Since the spindle motors are running, causing the contacts of 7 1M and 2M to be closed, this brings in relays SCR and SCRA in line 28. (Relay ySCR is already actuated.) Relay SCRA holds itself in through its contacts in line 29. It also activates the solenoid valfve G in line 49 to turn the tracer mechanism on, to control carniage movement adjacent the cutters.
  • relay contacts in line 30 actuate relay 6CR if the carriage is clear so that limit switch 6LS is closed. This starts the reverse rotation of the drive motor for the clamping mechanism since it :brings in the motor starter R in line 7, causing the motor to move in reverse direction.
  • this reverse movement turns the soles from the position in which their centerline is normal to the direction of carriage movement (shown by .arrow C), to Ia position where the centerline is at a start position a small acute ⁇ angle "y from the normal centerline position.
  • This reverse rotation occurs while the carriage is moving from the front of the machine toward the rotating tool. r
  • This initial, small, angular movement in the reverse direction occurring as the carriage yis moving across and prior to contact of the soles with the trimming tools, is initiated by the limit switch 6LS in l-ine 30, as soon as the carriage moves .away from the front of the machine.
  • the total angular movement is limited and controlled by timer 2T which is actuated by the contacts GCR and held in by contacts SCR in lines 38 and 39.
  • Actuation of the starter relay in line 7 brings in the power to motor M3 in lines ⁇ 6 Iand 7, and controls the current direction flow through the motor armature ARM lin line 12 by actuating the contacts R in lines 10a, 10b, 10c, 11 and 12.
  • closing of the contacts of SCR and SCRA in lines 10a, 10b, 10c, and 11 throws in the potentiometer POTl which controls the rotational speed of the mechanism in reverse direction.
  • Potentiometer POT2 is not yet actuated. It is subsequently :actuated when the machining is done and the sole is being returned to its proper alignment -as will be explained hereinafter.
  • relay 7CR is brought in in line 32, which causes actuation of motor starter F in line 9 to cause forward actuation of the motor armature.
  • 'It then moves in the forward rotational direction, or i.e., the opposite rotational direction as originally, to cause machining.
  • This rotational movement occurs just as the sole is contacting the rotating spindle cutter.
  • the cut starts on .a generally tangential ybasis from point S (FIG. 12) to feed in gradually.
  • the rotational speed again .is controlled in response to the cam mechanism.
  • the sole then rotates an entire revolution from the point at which it started to machine, and a small angle r further, to end up at f.
  • the sole is still not accurately aligned with its centerline normal to the direction of carriage movement, to ret-urn properly to the initial' loading position.
  • the centerline of the sole is still at a small acute angle q with respect to its necessary centerline position to engage the spacer plates with the hooking fingers.
  • the machining overlap Iangle "q in excess of one complete revolution is not quite as large as in the initial reverse direction y l.angle that the clamp was rotated in reverse prior to starting the actual cut on the sole.
  • the remaining small angle r is covered by further forward rotation of the soles and clamps, to be accurately aligned.
  • the limit switch 1.1LS in line 39a is closed to actuate relay 9CR. Then, if the contacts of relay 12CR land SCR are de-energized, the relays SCR and SCRA in line 28, 29 and 27 will be dropped out. Even though timer 2T is out in line 33, relay contacts 12CR an-d 7CR in line 34 will carry the rotation on around until the sole centerline is exactly normal to the direction of carriage movement. The clamps are then in the proper loading position as the carriage returns. The sole is lalways ⁇ accurately laligned with the loader mechanism as it returns.
  • potentiometer POT2 takes over during this return carriage movement to slow down the speed of clamp rotation during the few degrees of angle 1a
  • the alignment must be ⁇ exact and, the regular rotation of the sole during this part of the cycle would be too rapid under the control of potentiometer POT1 to stop it in exact position.
  • the rotational speed is also controlled in variable speed fashion due to the follower response of the previously described cam and potentiometer POT1 as certain portions of the periphery of the sole are machined.
  • This enables the two carefully shaped opposite cam lobes (FlG. 5) to shift the potentiometer and apply a greater electrical load resistance in the circuit to the motor armature at certain times.
  • This slows the sole rotating motor down as the toe and heel portions contact the machining cutters. This is purposely done since the radius of curvature is small in these areas and machining is very delicate. It has been found that by slowing the feed rate down in these areas, in this controlled variable fashion, excellent results occur.
  • the cam accelerates the rotational motion to higher speeds by decreasing the resistance to the motor along the fairly large curvature side edges of the soles.
  • the series of steps can be activated manually using the manual selector switches illustrated in the circuit diagram, or may be achieved automatically with the relay circuitry described above.
  • the workman need not be skilled but merely needs to keep the stacks 14, 16, 2t) and 22 filled with respective upright and inverted left and right shoe soles and attached heels.
  • the pump motor on, and potentiometer POT2 preset to control the return speed on the cla-mp driving mechanism, the cycle is started by pushing push button S to begin the operation.
  • the lower soles S1 and S3 in stacks 16 and 22 are shifted across the front of the machine by cylinder 70, and the loader is reciprocated inwardly toward the machine by actuation of cylinder 120 to push the two pairs of upper and lower soles into the two clamping mechanisms.
  • Clamping cylinders 136 and 136 are then actuated to grip the soles and adjacent heels within the clamping plates and against the spacer plates.
  • the hooking fingers (FIG. 8) are then released from spacer plates 150 and 150 by actuation of piston plugs 184 and 186 in each of supports 96 and 96'.
  • the carriage is then reciprocated on its tracks from the front to the rear of the framework by actuation of cylinder 250.
  • the tracer valve circuit When the carriage is part Way across the space (as illustrated in FIG. 6), the tracer valve circuit is actuated, and also drive motor 214 (FIG. 5) is actuated in reverse t rotate the clamping mechanisms backward a fraction of a revolution. As the clamped shoe soles come into Contact with the spinning cutting tools, motor 214 is timed to be shifted from reverse to forward direction to rotate the clamping mechanisms and soles forwardly. As the cutter contacts the shoe soles it does so on a tangential basis, with increasing bite, rather than moving directly into the shoe sole on a perpendicular plane.
  • the drive mechanism rotates the clamping mechanisms and soles a complete revolution plus a fraction of revolution further.
  • the tapered portion to machine last and provides a neat feathered edge at the termination of the cut. It has been found with this mechanism operating thusly, no ridge is left on the soles at the end of the cut, and no gouges are made in the soles at the beginning of the cut.
  • the soles are not only shifted toward and away from the cutter with precision due to the slave-follower valve control using template 208, but also the speed of rotation of the clamping mechanism is eXactly controlled as previously indicated, so that, when the cutter is machining the elongated side edges of the soles it can move rapidly due to the relatively straight line action.
  • the cutting action is slowed controllably and variably with cam mechanism 210 controlling potentiometer POT1 to motor 214.
  • the spacers position the upper and lower soles apart lwith respect to the cutters, the latter lcan form the curved edge corner on the soles in required fashion.
  • the spacers enable at least two soles to be machined simultaneously. If desired, conceivably several intermediate spacers could be employed to enable several spaced shoe soles and attached heels to move into a plurality or gang of cutters at spaced intervals like the two illustrated on each spindle.
  • the template is in a plane perpendicular to the plane of the shoe soles. It is also on the end of the machine out of the dirt and readily exchanged for another size template to suit the particular sole shape and size. This is achieved by the used of the hydraulic sleeve-follower system. Yet, it can be readily synchronized with the speed control mechanism on the same shaft.
  • Apparatus for trimming shoe soles comprising: a framework; rotatably driven forming tool means mounted in one position on said framework; sole clamping means; a. carriage supporting said sole clamping means and movably mounted on said framework for reciprocation toward and away from said forming tool means; powered carriage shifting means between said framework and said carriage; said clamping means being rotatably mounted to said carriage; rotational drive means operably connected to said clamping means including means to rotate said clamping means complete revolutions at a time; motion controlling template means drivingly connected to said rotational drive means, and template follower control means operably associated in control relationship wit-h said powered carriage shifting means, to controllably reciprocate said clamping means with respect to said forming tool means during rotation of said clamp-ing means.
  • Shoe sole trimming apparatus comprising: supporting framework; forming tool means rotatably mounted to said framework, and including drive means therefor; a carriage shiftably mounted to said framework to move ⁇ toward and away from forming tool means; carriage shifting means; sole clamping means on said carriage engageable against opposite faces of soles, and shiftable ⁇ with said carriage; clamp actuating means; a rotatable Mconnection between 4said clamping means and said clamp actuating means; rotating means for said clamping means; and template control means operably associated with said rotating means and with said carriage shifting means to control the rotation and shifting of said clamping means with respect to said forming tool means.
  • Apparatus for trimming shoe soles comprising: a
  • Apparatus for trimming shoe soles comprising: a framework; rotatably driven forming tool means mounted on said framework; sole clamping means; .a carriage supporting said sole clamping means and y movably mounted on said framework for movement toward and away from said forming tool means; powered carriage shifting means between said framework and said carriage; said clamping means being rotatably mounted on said carriage; rotational drive means operably connected to said clamping means; motion controlling template means drivingly connected to said rotational drive means; templateA follower means operably associated ⁇ with vsaid template means and in control relationship with said powered carriage shifting means, to controllably shift said clamping means with respect to vsaid forming tool means during rotation of said clamping means; power motor means operably connected to said rotational drive means to rotate said drive means and said clamping means; rotational cam actuated electrically responsive speed control means electrically associated with said power motor means and responsive to positioning of said rotational drive means and said template means to lower the power input to and t-hus the rotational speed of said power motor 'means
  • S. Apparatus for trimming shoe soles comprising: a framework; rotatably mounted and driven forming tool means mounted on said framework; sole clamping means; a carriage supporting said sole clamping means and movably mounted on said framework for 4movement toward and away from said forming tool means; powered carriage shifting means between said framework and said carriage; said clamping means being rotatably mounted on said carriage; rotational drive means operably connected to said clamping means; motion controlling template means drivingly connected to said rotational drive means; template follower means opera-bly associated with said template means and in control relationship with said powered carriage shifting means, to controllably shift said clamping means with respect to said forming tool means during rotation of said clamping means; power motor means operably connected to said rotational drive means to rotate said drive means and said clamping means; rotational directional control means actuable with carriage shift toward said forming tool means and operably associated with said rotational drive means to initially cause rotation of said clamping means in reverse direction for a 'fraction of a revolution prior to positioning of said clamping means adjacent said
  • Apparatus for trimming shoe soles comprising: a framework; rotatably driven forming tool means mounted on said framework; sole clamping means; a carriage supporting said sole clamping means and movably mounted on said framework for movement toward and away from said forming tool means; powered carriage shifting means between said framework and said carriage; said clamping means being rotatably mounted to said carriage; rotational drive means operably connected to said clamping means, and motion controlling template means drivingly connected to said rotational drive means [and operably associated in control relationship with said powered carriage shifting means, to controllably shift said clamping means with respect to said forming tool ⁇ fmeans during rotation of said clamping means; said clamping means comprising a pair of spaced plates and an intermediate spacer; cooperative gripping means between said framework and said spacer to support said spacer with separation of said plates; and release means on said gripping means actuated prior to s-hifting of said carriage.
  • said gripping means comprises a pair of ⁇ hooking elements and cooperative receiving sockets and said release means cornprises powered biasing means for said elements.
  • Apparatus for trimming shoe soles comprising: a
  • Apparatus for trimming shoe soles comprising: a framework; forming tool means rotatably mounted on said framework, and drive means therefor; a carriage supported on said framework and shiftable toward and away from said tool means; a pair of spaced sole clamping plates mounted on said carriage and a spacer plate therebetween; a pair of sole stack retention means on said frame for right and left foot soles; sole shifting means aligned with the bottom of one of said pair of retention means and directed toward the other of said retention means; sole advancing means cooperative with the bottoms of the other of said retention means and shiftable toward said plates; a guide platen in said other retention means and aligned with said spacer plate; gripping and support hooking fingers extending from said platen; finger receiving openings in said spacer plate; finger shifting release means operably associated with said fingers allowing release of said spacer plate therefrom; clamping plate reciprocating means operably connected to one of said clamping plates; rotational drive means operably connected to the other of said clamping plates; and power motor means operably connected to said rotational
  • rotational drive means include a drive shaft and a differential gear housing to said clamping means, and said -template and said camming means are mounted to opposite ends of said shaft in planes normal to the planes of said clamps and clamped soles.
  • Apparatus for peripherally trimming shoe soles comprising: rotatably driven trimming means, sole clamping means; shifting means to movevsaid clamping means and trimming means varying controlled amounts together and apart to trim clamped soles; rotational drive means operably connected with said clamping means to expose the periphery of the soles to said trimming means; template guide means operably associated with said shifting means; and rotational speed control means operably associated with said template guide means and said rotational drive means, pre-set to lessen rotational speed thereof during trimming of the heel and toe areas of the soles, and to increase rotational speed along the side edges of the soles.
  • Apparatus for peripherally trimming shoe soles ocmprising: rotatably driven trimming means; sole clamping means; shifting means to move said trimming means and clamping means varying controlled amounts together and apart; reversible rotational drive means operably associated with said clamping means; rotational directional con-trol means operably associated with said shifting means and said drive means, and responsive to movement of said trimming and shifting means together to initially cause rotation of said clamping means a small angle in one direction, and then in reverse direction with contact of said trimming means on the soles, for a complete revolution plus said small angle.
  • Apparatus for peripherally trimming shoe soles comprising: rotatably driven trimming means; sole clamping means; shifting means to move said clamping means and trimming means varying controlled amounts together and apart to trim clamped soles; rotational drive means operably associated with said clamping means; template guide means operably associated with said shifting means to expose the sole peripheries to said trimming means; rotational speed contr-ol means operably associated with said template guide means and said rotational drive means and preset to lessen rotational speed thereof during trimming of the heel and toe areas of the soles, and to increase rotational speed along the side edges of the soles; rotational directional control means operably associated with said shifting means and said drive means, and responsive to movement of said trimming and shifting means together to initially cause rotation of said clamping means a small angle in one direction, and then in reverse direction with contact of said trimming means on the soles, for a complete revolution plus said small angle.
  • said rotational drive means includes electrical motor means
  • said rotational speed control means 4 comprises a cam controlled potentiometer electrically connected to said motor means
  • said speed control means includes a second potentiometer operatively associated with said motor means during the last few degrees of said small angle to slow down the rotation of said clamping means.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US406234A 1964-10-26 1964-10-26 Heel and sole trimmer Expired - Lifetime US3299455A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US406234A US3299455A (en) 1964-10-26 1964-10-26 Heel and sole trimmer
GB42819/65A GB1066417A (en) 1964-10-26 1965-10-08 Heel and sole trimmer
CH1447165A CH442075A (de) 1964-10-26 1965-10-20 Maschine zum automatischen Nachschneiden der Ränder von Schuhsohlen und -absätzen
AT951365A AT283160B (de) 1964-10-26 1965-10-20 Sohlenbeschneidemaschine
BE671286D BE671286A (de) 1964-10-26 1965-10-22
FR35908A FR1459382A (fr) 1964-10-26 1965-10-22 Machine pour rogner les semelles et les talons des chaussures
ES0318872A ES318872A1 (es) 1964-10-26 1965-10-25 Aparato para repasar o recortar perifericamente suelas de calzado.
NL6513760A NL6513760A (de) 1964-10-26 1965-10-25
DE19651685504 DE1685504A1 (de) 1964-10-26 1965-10-25 Maschine zum Nachschneiden der Raender von Schuhsohlen und - absaetzen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US406234A US3299455A (en) 1964-10-26 1964-10-26 Heel and sole trimmer

Publications (1)

Publication Number Publication Date
US3299455A true US3299455A (en) 1967-01-24

Family

ID=23607104

Family Applications (1)

Application Number Title Priority Date Filing Date
US406234A Expired - Lifetime US3299455A (en) 1964-10-26 1964-10-26 Heel and sole trimmer

Country Status (8)

Country Link
US (1) US3299455A (de)
AT (1) AT283160B (de)
BE (1) BE671286A (de)
CH (1) CH442075A (de)
DE (1) DE1685504A1 (de)
ES (1) ES318872A1 (de)
GB (1) GB1066417A (de)
NL (1) NL6513760A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345781A (en) * 1965-01-28 1967-10-10 Wolverine World Wide Inc Sole sanding machine
US3441966A (en) * 1965-06-09 1969-05-06 United Shoe Machinery Corp Heel finishing machines
US3493985A (en) * 1968-06-04 1970-02-10 Circle Machine Co Inc Apparatus for performing operations on asymmetrical flat surfaced articles including an automatic sole feed
EP1424021A1 (de) * 2002-11-27 2004-06-02 Selmac S.r.l. Vorrichtung zum Positionieren und Spannen geformter Teile und damit ausgerüstete Maschine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1013705B (it) * 1974-05-09 1977-03-30 Mazzantini S Macchina per la lavorazione peri metrale di suole od altri elementi laminari con sistema di piazzamen to per coltello dei pezzi da lavorare
CN114590565B (zh) * 2021-04-26 2024-01-23 深圳市凌盛电子有限公司 电路板焊接装配无创式上下料组合机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US974708A (en) * 1910-06-06 1910-11-01 Oswald Vernon Forbes Machine for trimming the heels of boots and shoes.
US3088146A (en) * 1960-06-08 1963-05-07 Superior Shoe Company Inc Machine for operating on shoes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US974708A (en) * 1910-06-06 1910-11-01 Oswald Vernon Forbes Machine for trimming the heels of boots and shoes.
US3088146A (en) * 1960-06-08 1963-05-07 Superior Shoe Company Inc Machine for operating on shoes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345781A (en) * 1965-01-28 1967-10-10 Wolverine World Wide Inc Sole sanding machine
US3441966A (en) * 1965-06-09 1969-05-06 United Shoe Machinery Corp Heel finishing machines
US3493985A (en) * 1968-06-04 1970-02-10 Circle Machine Co Inc Apparatus for performing operations on asymmetrical flat surfaced articles including an automatic sole feed
EP1424021A1 (de) * 2002-11-27 2004-06-02 Selmac S.r.l. Vorrichtung zum Positionieren und Spannen geformter Teile und damit ausgerüstete Maschine

Also Published As

Publication number Publication date
ES318872A1 (es) 1966-04-16
DE1685504A1 (de) 1970-07-30
NL6513760A (de) 1966-04-27
GB1066417A (en) 1967-04-26
BE671286A (de) 1966-02-14
CH442075A (de) 1967-08-15
AT283160B (de) 1970-07-27

Similar Documents

Publication Publication Date Title
US3099970A (en) Garment working apparatus
US3299455A (en) Heel and sole trimmer
GB1301042A (en) Improvements in or relating to a slicing machine
US3739677A (en) Slicing machine
US2678070A (en) Automatic curve cutting sawing apparatus
US2747627A (en) Semi-automatic dovetailing machine
US3733632A (en) Roughening machine for lasted uppers
JPS6333998B2 (de)
US2690572A (en) Apparatus for handling and treating elongated workpieces
US3308688A (en) Process and apparatus for sharpening the teeth of saw blades
US3397415A (en) Fully automatic machine for the working of sole edges on crude soles
US2228055A (en) Block sawing machine
US2854040A (en) Automatic copying machine
US3088146A (en) Machine for operating on shoes
US1245240A (en) Woodworking-machine.
US2606582A (en) Device for the shaping of shoe heels and the like
US2544470A (en) Machine for breasting louis heels
US2821219A (en) Machines for turning wood heel blanks
US1490691A (en) Machine for trimming rubber heels
US436359A (en) Machine for cutting shoe-soles
US1742491A (en) Shoe machinery
US2209651A (en) Shank for footwear
US1688781A (en) Machine for cutting concave surfaces
US3487488A (en) Machines for form milling of shoe soles and heels
JPH0569288A (ja) 刃物およびその研削装置