Shoe manufacturing apparatus |
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| 申请号 | US3784995D | 申请日 | 1972-02-09 | 公开(公告)号 | US3784995A | 公开(公告)日 | 1974-01-15 |
| 申请人 | WOLVERINE WORLD WIDE INC; | 发明人 | EGTVEDT R; BOOTH W; | ||||
| 摘要 | Herein is disclosed a carrier for securely holding, at a fixed reference plane, an inverted shoe last upon which a shoe upper is mounted during the manufacturing of the shoe. The carrier includes two vertically movable posts to which the inverted shoe and last are mounted and which are movable to hold the bottom of the shoe against a horizontal reference plane during a gauging step for establishing the reference plane for the shoe last during manufacture. Gauging and locking apparatus along the side of the carrier advancing conveyor cooperates with each carrier. The gauged and locked carrier, with its shoe last having a shoe upper thereon is transported along various stages of an automated assembly line held in the fixed predetermined reference plane. Unique roughing apparatus cooperates with the shoe last and shoe upper to sequentially controllably roughen selected portions of the shoe upper for subsequent sole adhesion thereto. | ||||||
| 权利要求 | 1. In a shoe manufacturing apparatus; a carrier for holding a shoe last and shoe upper mounted thereon, said carrier including releasable bias means for urging a shoe upper mounted on a last mounted to said carrier toward a fixed reference position, said carrier further including means for locking a last mounted to said carrier in said fixed reference position; and conveying means for a shoe assembly line and adapted to receive said carrier such that said shoe upper is moved along the assembly line in said fixed reference position, said conveying means including means cooperating with said urging means and said locking means on said carrier as said carrier moves along said conveying means to first release said bias means to urge the shoe upper in said fixed reference position and then actuate said locking means to secure the shoe upper in said fixed reference position. 2. The apparatus of claim 1 wherein said carrier comprises: a base member; and a front vertically movable element and a rear vertically movable element coupled to said base member and adapted to receive and hold said shoe last, said releasable bias means coupled to said front and rear vertically movable elements, said rear vertically movable element being pivotally mounted to said base, and wherein said means for locking said front and rear vertically movable elements at a desired height comprises means for pivoting said rear vertically movable element such that said elements and said last thereon will remain in a fixed position. 3. In a shoe manufacturing apparatus: a carrier for holding a shoe last and a shoe upper mounted thereon in a fixed reference position, said carrier comprising a base member; a front vertically movable post slidably mounted within a front cylinder coupled to said base and a rear vertically movable post slidably mounted within a rear cylinder coupled to said base member and adapted to receive and hold said shoe last; means for adjusting the vertical height of said front and rear vertically movable posts comprising front and rear wedges having a tapered surface and which are slidably mounted to said base member such that said tapered surface of said front wedge contacts an end of said front vertically movable post and said tapered surface of said rear wedge contacts an end of said rear vertically movable post such that as the position of said wedges is changed, said posts move in a generally vertical direction; and means for locking said front and rear vertically movable posts at a desired height such that said elements and last thereon will remain in a fixed position once locked; and conveying means for a shoe assembly line and adapted to receive said carrier such that said shoe upper is moved along the assembly line in said fixed reference position. 4. The apparatus as defined in claim 3 wherein said front and rear vertically movable posts include bias springs coupled thereto and mounted within said corresponding front and rear cylinders for holding said posts against said tapered surfaces of said wedges. 5. The apparatus as defined in claim 4 wherein said rear cylinder associated with said rear vertically movable post is pivotally coupled to said base member, and wherein said means for locking said front and rear vertically movable posts at a desired height comprises means for tilting said rear vertically movable post. 6. The apparatus of claim 5 wherein said front vertically movable post has a pad at an end remote from said front wedge, said pad adapted to contact an outside surface of said shoe upper, and wherein said rear vertically movable post has a tip at an end remote from said rear wedge adapted to fit within a correspondingly shaped aperture in a heel portion of said last when said last and shoe upper thereon is mounted to said front and rear vertically movable posts. 7. The apparatus as defined in claim 2 wherein said conveying means comprises a conveyor bed having guide means adapted to hold said carrier in engagement therewith in a relatively fixed vertical and lateral position relative to said conveyor bed, and means coupled to said carrier for moving said carrier along an assembly line. 8. The apparatus as defined in claim 7 wherein said means for moving said carrier comprises a slot extending the length of said conveyor bed along said assembly line drive means located in alignment with said slot and gripping means coupled to said drive means and extending through said slot to engage said carrier thereby causing said carrier to follow said drive means along said assembly line by sliding within said guide means. 9. The apparatus as defined in claim 7 wherein said guide means comprises a pair of sidewalls extending upwardly from each side of said conveyor bed and spaced to allow said base of said carrier to fit therebetween, and a pair of inwardly directed flange members mounted on said sidewalls at an end remote from the junction of said sidewalls with said conveyor bed, said flanges shaped to fit over the base of said carrier such that said carrier is held between said flange members and said conveyor bed and between said sidewalls in slidable engagement in a relatively fixed vertical and lateral position. 10. The apparatus as defined in claim 3 and further including means coupled to said front and rear wedges and rotatably coupled to said base member of said carrier for sliding said front and rear wedges in relation to said base member as said means is rotated relative to said base member. 11. The apparatus as defined in claim 10 wherein said conveying means includes a gauging station having first engaging means thereon which engage said means on said carrier for sliding said wedges such that as said carrier enters said gauging station, said sliding means is caused to rotate thereby sliding said wedges in a manner to cause said front and rear vertically movable posts to be moved in an upward direction. 12. The apparatus as defined in claim 11 wherein said gauging station includes means forming a horizontal reference plane mounted above said conveying means such that as said front and rear vertically movable posts are moved upwardly by said means for sliding said wedges, said shoe upper mounted on said last moves into contact with said reference plane. 13. The apparatus as defined in claim 12 in which said gauging station of said conveying means further includes second engaging means thereon for engaging said locking means on said carrier only after said shoe upper is in contact with said reference plane in a manner to actuate said locking means to fix said shoe upper in a predetermined position as said carrier moves along said assembly line. 14. In a shoe manufacturing system whereby shoe uppers are mounted on lasts which are transported along an assembly line such that automated manufacturing steps can be performed upon them, a carrier for holding a shoe last thereon in a fixed position, said carrier comprising: a base member; a front vertically movable post slidably mounted within a front cylinder coupled to said base and a rear vertically movable post slidably mounted within a rear cylinder coupled to said base member adapted to receive and hold a shoe last thereon; means for adjusting the vertical height of said front and rear vertically movable posts comprising front and rear wedges having a tapered surface and which are slidably mounted to said base member with said tapered surface of said front wedge contacting an end of said front vertically movable post and said tapered surface of said rear wedge contacting an end of said rear vertically movable post such that, as the position of said wedges is changed, said posts move in a generally vertical direction; and means for locking said front and rear vertically movable posts at a desired height such that said posts and lasts thereon will remain in a fixed position once locked. 15. The apparatus as defined in claim 14 wherein said front and rear vertically movable posts include bias spring means coupled thereto and mounted within said corresponding front and rear cylinders for holding said posts against said tapered surfaces of said wedges. 16. The apparatus as defined in claim 15 wherein said rear cylinder associated with said rear vertically movable post, is pivotally coupled to said base member, and wherein said means for locking said front and rear vertically movable posts at a desired height comprises means for tilting said rear vertically movable post. 17. The apparatus of claim 16 wherein said front vertically movable post has a pad at an end remote from said front wedge, said pad adapted to contact an outside surface of said shoe upper, and wherein said rear vertically movable post has a tip at an end remote from said rear wedge adapted to fit within a correspondingly shaped aperture in a heel portion of said last when said last and shoe upper thereon is mounted to said front and rear vertically movable posts. 18. The apparatus of claim 15 in which said adjusting means further comprises a gear plate having teeth at a periphery thereof, said gear plate rotatably mounted to said base member and coupled to said front and rear wedges so as to slide said wedges when said gear plate is rotated. 19. The apparatus of claim 18 wherein said teeth of said gear plate are adapted to engage an externally mounted rack so as to effect rotation of said gear plate as said carrier passes said rack. 20. The apparatus of claim 19 wherein each of said front and rear wedges has an associated bias spring coupled thereto at one end, said bias springs anchored to said base member at an end of said springs remote from the junction to said wedges, said bias springs tending to hold said wedges in contact with said front and rear vertiCally movable posts when said gear plate is rotated in a first direction. 21. A system for manufacturing shoes in which a shoe last with a shoe upper and an innersole mounted thereon is mounted in a predetermined fixed position in which the innersole remains in a fixed, predetermined reference plane during various manufacturing steps along an assembly line, said system comprising means forming a horizontal reference plane, conveying means passing under said reference plane; a carrier for holding a shoe last with a shoe upper, and an innersole mounted thereon, said carrier coupled to said conveying means such that said shoe last will pass under said reference plane; said carrier including self-contained means for pressing said shoe last with a shoe upper and an innersole thereon against said reference plane; and means on said carrier cooperating with said conveying means for locking said shoe last in a fixed position when it is pressed against said reference plane. 22. A system as defined in claim 21 wherein said conveying means includes means for guiding said carrier in a longitudinal direction along an assembly line while holding said carrier in a relatively fixed vertical and lateral position, and drive means engaging said carrier for moving said carrier longitudinally along said assembly line. 23. A system as defined in claim 22 wherein said carrier includes a base member adapted to fit within said guide means of said conveying means and to which said pressing means and said locking means of said carrier are coupled. 24. A system as defined in claim 23 wherein said pressing means includes vertically movable means coupled to said base member for mounting said shoe last to said carrier, and means for moving said movable mounting means in a generally vertical direction. 25. A system as defined in claim 24 in which said locking means comprises means for fixing the vertical position of said vertically movable mounting means. 26. A system for controlling the position of a machine tool to follow the contour of a work piece comprising: a processing station having a machine tool for performing a processing step upon a work piece; means for moving said work piece through said processing station; movable means for holding said machine tool; detecting means coupled to said work piece to receive work piece position information therefrom; additional detecting means coupled to said holding means for receiving machine tool position information therefrom; means coupled to said detecting means and to said additional detecting means for comparing the position of said machine tool to the position of said work piece; and control means coupled to said comparing means and to said holding means to change the position of said machine tool to follow the work piece when the position of the work piece and machine tool do not coincide. 27. A system as defined in claim 26 wherein said detection means includes sensing means contacting said work piece and having a follower arm adapted to contact and follow the contour of said work piece passing through said station, said follower arm coupled to a rotatable shaft having a geared cam at an end remote from said arm. 28. The system as defined in claim 27 wherein said additional detection includes a post coupled to said machine tool and linearly movable therewith and a movable carriage including valve means adapted to contact said post at predetermined positions of said carriage. 29. A system as defined in claim 28 wherein said comparing means comprises gear means coupling said geared cam to said movable carriage such that said carriage moves in predetermined relationship to position changes of the work piece. 30. The system as defined in claim 29 wherein said holding means comprises an outer frame in which is mounted in laterally movable relationship, an inner frame; and wherein said machine tool is coupled to said inner frame in vertically movable relationship, said outer frame being mOunted in fixed relationship to said processing station such that as said work piece passes adjacent thereto, said holding means allows said machine tool to contact said work piece. 31. The system as defined in claim 30 wherein said control means comprises a first pneumatically operated cylinder with a movable shaft, said first cylinder being mounted between said machine tool and said outer frame to provide vertical motion to said machine tool; and a valve adapted to supply said first cylinder with pneumatic pressure, said valve controlled by means of an actuation arm coupled to said valve and contacting said geared cam of said detection means. 32. A system as defined in claim 31 wherein said control means further includes a second pneumatically operated cylinder having a movable shaft and coupled between said inner and outer frames, said shaft being movable to provide lateral movement of said machine tool; said second cylinder coupled to said valve means in said carriage such that as said valve means is actuated by contacting said post said shaft associated with said second pneumatic cylinder provides lateral movement to said machine tool. 33. A system as defined in claim 32 wherein said work piece comprises a shoe bottom having overlapped shoe upper material therein, and wherein said machine tool comprises a rotating roughing wheel for roughing said overlapped shoe upper material. 34. A system for manufacturing shoes in which a shoe last with a shoe upper and an innersole are mounted thereon is mounted in a predetermined fixed position in which the innersole remains in a fixed, predetermined reference plane during the various manufacturing steps along an assembly line, said system comprising means forming a horizontal reference plane, conveying means passing under said reference plane, a carrier for holding an inverted shoe last with a shoe upper and innersole thereon will pass under said reference plane, means on said carrier for pressing said shoe last, shoe upper and innersole against said reference plane, means on said carrier for locking said shoe last in a fixed position corresponding to the position of said shoe last when it is pressed against said reference plane, at least one processing station along said assembly line, and having a machine tool for performing a processing step upon said shoe upper as it is advanced on said last, movable means for holding said machine tool, detecting means comprising a sensor having a first follower arm which extends into the path of and contacts said shoe upper as said upper is conveyed through said processing station to receive positional information as to the position of the advancing last; and control means coupled to said detecting means and to said holding means for controlling the position of said machine tool in response to the position of said shoe upper. 35. The system of claim 34 wherein said control means comprises a pneumatically operated cylinder having a movable shaft coupled to said holding means and further includes a valve coupled to said cylinder and adapted to supply pneumatic pressure to said cylinder, said valve coupled to said follower arm to be controlled by the motion thereof in a manner to control the position of said machine tool as a function of the position of said shoe upper. 36. The system of claim 35 and further including a second follower arm elastically coupled to said first follower arm such that said first arm follows the contour of a rear position of said shoe upper as said upper passes through said processing station. 37. The system of claim 35 in which said machine tool is a rotating roughing wheel and said processing station is a toe roughing station. 38. The system of claim 36 in which said machine tool is a rotating roughing wheel and said processing station is a heel roughing station. 39. Shoe manufacturing apparatus comprising: a plurality of shoe last carriers adapted to retain shoe lasts with shoe uppers and inner soles attached thereto; conveyor means cooperable with said carriers to transport the shoe lasts along an assembly line; gauging means adjacent said conveyor means and cooperable with said carriers to fix the shoe lasts in a reference plane; a plurality of modular shoe processing units removably mounted adjacent said conveyor means and downstream of said gauging means, said modular units each having locater means fixing the position of said unit relative to said reference plane. 40. The apparatus as defined in claim 39 in which each of said processing units includes a mounting frame coupled to said conveyor by means of a plurality of legs, and wherein said locating means comprise a collar on each leg which vertically positions said mounting frame with respect to said reference plane. 41. Shoe manufacturing apparatus comprising: an assembly line formed of a plurality of shoe processing units in sequential order each of said processing units being of modular nature and removably mounted relative to the other units; shoe last conveying means for transporting a shoe last having a shoe upper mounted thereto past said processing units; and locater means for each of said modular units to fix the functional location thereof relative to said shoe last conveying means. |
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