EP0318877B1 - Tackszuführvorrichtung und -verfahren - Google Patents

Tackszuführvorrichtung und -verfahren Download PDF

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Publication number
EP0318877B1
EP0318877B1 EP88119752A EP88119752A EP0318877B1 EP 0318877 B1 EP0318877 B1 EP 0318877B1 EP 88119752 A EP88119752 A EP 88119752A EP 88119752 A EP88119752 A EP 88119752A EP 0318877 B1 EP0318877 B1 EP 0318877B1
Authority
EP
European Patent Office
Prior art keywords
rotor
tack
tacks
grooves
supplying
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
EP88119752A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0318877A2 (de
EP0318877A3 (en
Inventor
Wolfgang Emmerich
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.)
DEUTSCHE VEREINIGTE SCHUHMASCHINEN GMBH
Original Assignee
DEUTSCHE VEREINIGTE SCHUHMASCHINEN GmbH
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 DEUTSCHE VEREINIGTE SCHUHMASCHINEN GmbH filed Critical DEUTSCHE VEREINIGTE SCHUHMASCHINEN GmbH
Publication of EP0318877A2 publication Critical patent/EP0318877A2/de
Publication of EP0318877A3 publication Critical patent/EP0318877A3/de
Application granted granted Critical
Publication of EP0318877B1 publication Critical patent/EP0318877B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D71/00—Elements of nailing machines; Nail-feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F7/00—Nailing or stapling; Nailed or stapled work
    • B27F7/02—Nailing machines
    • B27F7/13—Nail feeding devices

Definitions

  • the invention relates to a tack feed device with at least one inclined slideway, a rotor which has axially parallel grooves on its outer circumference for receiving one tack from the slideway mouth, and a housing which accommodates the rotor and which has axially parallel grooves on its inner circumference with the same angular pitch as comprises the rotor grooves for forwarding the tackle to a lasting device, means for simultaneously transferring the tackle from the rotor grooves into the housing grooves, as well as a tack feed method in which a row of tacks is formed in the rotor from successively feedable tacks to a rotor via a track the tackles of the tack row are simultaneously passed on to a lasting device.
  • a known tack feed device of this type (DE-C-721 061)
  • the rotor is rotated in one direction of rotation in each working cycle for picking up the tack and then turned back again.
  • the angle of rotation By adjusting the angle of rotation, the number of rotor grooves running past the slideway mouth and thus the number of tackles processed in each case can be selected.
  • the machine To change the angle of rotation, the machine must be shut down and its mechanical transmission interfered.
  • the rotor is only provided with rotor grooves over part of its outer circumference.
  • the housing grooves are axially offset, so that the rotor must be moved axially to transfer the Tackse.
  • US-A-1 342 415 shows a further bag feed device which has two inclined slideways and a rotor with axially parallel grooves. At the mouth of each slideway there is a tack lock on the foremost tack. Inversion rotors are provided between the slideway mouth and the rotor, which insert the tack, which hangs downwards in the slideways, into the rotor in the opposite direction. The movement of the tackle out of the slideway and into the rotor takes place in the direction of the shafts. Each slideway fills half of the rotor.
  • a plate covering the lower end of the rotor can be rotated with respect to the rotor so that the grooves are opened and the tackle falls down onto a transport element on which it can be transported to a heel lasting machine. After the rotor has been emptied, it can be refilled.
  • US-A-1 335 563 shows a box nailing machine in which individual nails are fed to a correspondingly large number of nailing stations via a plurality of parallel slideways. The nails are separated at the end of the slideway by a rotor, which picks up 1, 2, 3 or 4 nails with one revolution and one after the other into an inlet opening of a hose immediately adjacent to the slideway mouth transported in which the nails slip to the point of impact.
  • FR-A-1 579 400 describes a tack feed device in which tackles are transported separately via a plurality of parallel slideways to the guide channels leading to the lasting positions. Depending on the number of tackles to be processed, a different number of slideways is required. A tack lock is arranged at the mouth of each slide.
  • the invention is based on the object of specifying a tack feed device of the type described at the outset with which it is possible in a simpler manner to achieve different tack patterns.
  • a tack lock is arranged on the slideway mouth, which attacks the front tack when actuated and prevents its transition into a rotor groove, and that a tack lock control device is provided which is dependent on a predefinable tack pattern (arrangement, number , Size) and taking into account the angular spacing of the respective slideway opening from the housing groove to be assigned, the associated tack lock is released.
  • tack patterns can either be set manually or already stored in the program so that they can be easily called up.
  • a tack lock By using such a tack lock, rotor grooves can be freely released during loading. It is therefore not necessary for the rotor rotation to be stopped after a predetermined angle and for a reverse rotation to take place. There is therefore no need to intervene in the mechanical translation of the machine a time-consuming backward rotation must take place before the next work cycle. The next loading of the rotor can already take place during the reverse rotation or - which is often even more favorable - during the subsequent further rotation. Nevertheless, you can work with different numbers of tacks, for example with 14 children's heels, 18 with women's heels and 24 with men's heels. Tack arrangements can also be achieved in which only every second rotor groove is occupied. If the front tack is released by the tack lock, it can immediately slide into the next rotor groove under the weight and weight of the tackle that is pushing ahead.
  • the tack lock has a piston acting on the tack head, the end face of which is essentially parallel to the surface of the slideway.
  • the tack shaft is positioned approximately perpendicular to the surface of the slideway. This ensures that the pocket shaft does not engage in the next rotor groove due to its own weight and blocks the rotor.
  • tack lock can be actuated by a pneumatic cylinder. This also compensates for irregularities in the thickness of the tack heads.
  • the slideway opening is expediently located in the housing and the tack lock is carried by a housing cover. This results in a reliable assignment of the tack lock to the tack directly adjacent to the rotor.
  • tack storage containers are assigned to the rotor, it is advantageous if there is a tack lock at each slideway mouth. You can then feed tackles of different sizes according to the pattern. For example, depending on the shoe material, you can work alternately with tackles of different lengths. It is much more important, however, that different tack lengths can be optimally put together for a lasting operation, for example, the first two or three tackles can be chosen shorter on both sides in the connection area than the remaining heel tackles. This measure is therefore particularly suitable for heel lasting machines.
  • a particularly rapid mode of operation is obtained if the rotor grooves are evenly distributed over the entire outer circumference and the inner circumference of the housing is divided into an input section with all slideway openings and an output section offset to this in the circumferential direction with all housing grooves. Tacks can be loaded into the rotor immediately after the previous work cycle or even in an overlap with it.
  • the exit section extends over 180 °.
  • the housing grooves are assigned a ring segment-shaped locking plate which extends below the rotor surface guiding the tack heads and in Circumferential direction from a first position, in which the housing grooves are covered, into a second position, in which the housing grooves are open, and can be moved back.
  • a locking plate makes it possible to arrange the slideway mouth and the housing grooves at a height, ie not axially offset, so that the rotor does not have to perform any axial movement either.
  • the locking plate engages the tack shaft below the head, so that the tack remains securely in the rotor groove despite the inclined inclination of the housing surface and thus the rotor surface.
  • the blow-out channels can be formed by radial grooves on the top of the rotor covered by a housing cover.
  • the blowing jet is directed onto the head end of the bag, so that a particularly reliable radial displacement takes place.
  • the blowing jet drives the respective tack axially downward, which increases the working speed even further.
  • the rotor advantageously has a stepper drive. This is not just an inexpensive yet precise type of drive. Rather, the control is very simple. Since each step corresponds to a certain angular division, it is sufficient to count the steps if certain angular distances are to be taken into account.
  • a particularly simple stepper drive has a pneumatic cylinder which engages a lever which takes the rotor with it via a one-way clutch.
  • a pneumatic rotor is particularly recommended when the other controls are also pneumatic.
  • an indexing device should be provided which stops the rotor in a defined angular position. In this angular position, the tackle can then be transferred from the rotor grooves into the housing grooves.
  • a preferred tack feed method of the type mentioned at the outset which can be carried out in particular using the described tack feed device, according to the invention consists in the fact that the tack row is fed in a pattern over at least two tracks each assigned to a particular tack length, so that a tack row is formed in the rotor from tackles of different lengths can be, and that when loading the rotor of the bag feeder with a patterned series of tacks, the tacks of a preceding series of tacks are transported in the rotor of the bag feeder or transferred from the rotor to the lasting device.
  • the bag feed device shown in the figures has a machine frame 1 which carries two slideways 2 and 3. These are fed from a two totes storage container 4 and 5 having a bulk box 6, which can be pivoted with the aid of a pneumatic lifting cylinder 7 about the axis 8 from a position shown in full line in FIG. 1 to a dash-dotted position. In this upper position, the slideways 2 and 3 fill with tackles, which slide downward with their heads lying on the top 9 of the slideway, the shaft extending into the slideway slot.
  • a rotor 10 is mounted in the machine frame 1 and has the configuration illustrated in FIGS. 3 and 4. On its outer circumference there are fifty rotor grooves 11 with the same angular spacing, each of which is connected to a radial groove 12 which leads to a central pressure chamber 13.
  • the rotor shaft 14 is mounted in the machine frame 1 via two roller bearings 15 and 16. It is via a one-way clutch 17 of a lever 18 entrained, which can be moved back and forth by the piston of a pneumatic cylinder 19. In one direction of rotation, the rotor 10 is taken along by a predetermined angle. In the opposite direction, the freewheel is effective so that the rotor 10 stops. Due to the continuous back and forth movement of the pneumatic cylinder 19, the rotor is therefore driven step by step, in each case by an angular distance corresponding to that between two adjacent radial grooves.
  • the rotor 10 is surrounded by a housing 20 which is described in more detail in connection with FIGS. 5 and 6. It is fastened to the machine frame 1 by means of the fastening holes 21 and 22 and has a central opening 23 for receiving the roller bearing 15.
  • the inner circumference 24 of this housing is provided in an input section 25 with the orifices 26 and 27 of the end sections 28 and 29 of the two slideways 2, 3.
  • An output section 30 is provided with housing grooves 31, which have a circular cross section and have the same angular pitch as the rotor grooves 11. While the rotor groove 11 has a cross section which is larger than a pocket shaft but smaller than a pocket head, the cross section of the housing groove exceeds 31 the cross section of the tack head.
  • both the input section 25 and the output section 30 each extend over 180 °.
  • a tube or hose 32 connects to each housing groove 31, through which the tackle can be fed to the actual heel lasting area. They end where the tackle can be driven in by the striker of the lasting device.
  • the housing 20 has a recess 33 in the region of the output section, in which a ring-shaped blocking plate 34 is received.
  • This locking plate is guided on pins 35 of the housing 20 by means of circumferential grooves 36 in the circumferential direction. It can be moved back and forth by a limited angle of rotation by a pneumatic cylinder 38 acting on a boom 37.
  • the locking plate 34 has cutouts 39 which correspond to the cross section of the housing grooves 31. In between there are locking sections 40 which can cover the entrance of the housing grooves 31.
  • the locking plate can therefore be pivoted from a first position, in which the housing grooves 31 are locked, into a second position, in which these housing grooves are open.
  • Rotor 10 and housing 20 are covered by a housing cover 41. This also closes the pressure chamber 13 and the radial grooves 12.
  • An air supply line 42 is connected to a control valve 43, which allows compressed air pulses to be supplied to the pressure chamber 13.
  • tack locks 44 and 45 are arranged on the housing cover 41 and are located exactly above the end sections 28 and 29 of the slideways 2 and 3.
  • Each tack lock has a pneumatic cylinder 46 which actuates a piston 47. When pressed, this presses on the head 48 of the foremost pocket 49. The head is pressed onto the upper side 9 of the slideway, so that the shaft is forcibly kept out of the adjacent rotor groove 11. This effect also contributes to the fact that the end section 28 has a smaller inclination to the horizontal than the rest of the slideway 2.
  • the tack locks 44 and 45 are controlled by valves 50.
  • a control device 51 receives the values for a predetermined tack pattern from a program memory 52, that is to say via the tack arrangement, the number of tacks and the tack size.
  • the program can be entered automatically via an input 53 by the last to be processed or manually by the operator.
  • the described bag feeder works as follows: As soon as a tack pattern has been predefined for the control device 51, the pneumatic cylinder 19 is actuated in such a way that the rotor 10 performs angular rotations in short succession, in each case by one rotor groove pitch.
  • the tack locks 44 and 45 are actuated in such a way that the rotor grooves 11 are filled with tackes in the correct pattern. For example, first three rotor grooves 11 are supplied with short tackles from the slideway 2, then a larger number of rotor grooves 11 with longer tackles from the slideway 2 and then again three rotor grooves with shorter tackles from the slideway 3.
  • the rotor 10 is rotated further until the rotor grooves 11 thus occupied face the correct housing grooves 31.
  • the rotor is stopped there and possibly locked by an index device (not shown).
  • the control device 51 actuates the pneumatic cylinder 38, whereby the locking plate 34 is pivoted from its first position, in which the housing grooves 31 were covered, to the second position, in which these grooves are released.
  • a compressed air pulse is applied to the rotor pressure chamber 13 via the valve 43, so that the grooves 12 act as blow-out channels.
  • the tackles are therefore forcibly transferred from the rotor grooves 11 into the housing grooves 31. There they slide partly due to its own weight, partly due to the blowing air at a corresponding speed via the pipe 32 to the lasting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Branching, Merging, And Special Transfer Between Conveyors (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP88119752A 1987-12-03 1988-11-26 Tackszuführvorrichtung und -verfahren Expired - Lifetime EP0318877B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3740941 1987-12-03
DE3740941A DE3740941C3 (de) 1987-12-03 1987-12-03 Tackszuführvorrichtung und -verfahren

Publications (3)

Publication Number Publication Date
EP0318877A2 EP0318877A2 (de) 1989-06-07
EP0318877A3 EP0318877A3 (en) 1990-04-18
EP0318877B1 true EP0318877B1 (de) 1994-01-12

Family

ID=6341787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119752A Expired - Lifetime EP0318877B1 (de) 1987-12-03 1988-11-26 Tackszuführvorrichtung und -verfahren

Country Status (6)

Country Link
US (1) US4907718A (enrdf_load_stackoverflow)
EP (1) EP0318877B1 (enrdf_load_stackoverflow)
BR (1) BR8806381A (enrdf_load_stackoverflow)
DE (1) DE3740941C3 (enrdf_load_stackoverflow)
ES (1) ES2047533T3 (enrdf_load_stackoverflow)
SU (1) SU1706382A3 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3908559A1 (de) * 1989-03-16 1990-09-20 Hacoba Textilmaschinen Tackszufuehrvorrichtung und -verfahren
US5009354A (en) * 1989-12-01 1991-04-23 Emhart Inc. Automatic riveting machine
GB9308293D0 (en) * 1993-04-22 1993-06-09 British United Shoe Machinery Feed device for headed fasteners
US5603442A (en) * 1995-09-01 1997-02-18 Schmidt; Volker Rotary hopper for an attaching apparatus
GR1002489B (el) * 1995-12-21 1996-12-09 .. Συστημα τροφοδοσιας καρφιων με περιστρεφομενη κεφαλη.
ES2158818B1 (es) * 1999-12-07 2002-05-01 Lear Automotive Eeds Spain Procedimiento de inyeccion de pasacables y elemento centrador separador para utilizarlo con dicho procedimiento.
US9999949B2 (en) 2007-09-14 2018-06-19 Seagate Technology Llc Work piece presentment
CN112707095A (zh) * 2020-12-31 2021-04-27 广州方糖数码科技有限公司 一种用于制药的送料机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1342415A (en) * 1918-07-11 1920-06-08 United Shoe Machinery Corp Nail-distributing machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735096A (en) * 1956-02-21 miller
US1335563A (en) * 1919-09-27 1920-03-30 Doig James Box-nailing machine
US1845651A (en) * 1929-02-04 1932-02-16 William C Dickson Nail feeding mechanism
US1920260A (en) * 1930-12-06 1933-08-01 United Shoe Machinery Corp Mechanism for supplying fastenings
DE721061C (de) * 1937-06-06 1942-05-23 Masch Werke Zu Frankfurt Am Ma Spitzen- und Fersenzwickmaschine mit Nagelvorrichtung
US2355311A (en) * 1942-01-26 1944-08-08 Curtiss Wright Corp Sorting machine
US2856606A (en) * 1955-06-24 1958-10-21 Fmc Corp Nailing machine
US3071291A (en) * 1959-02-20 1963-01-01 W J Young Machinery Co Inc Nailing machine feed mechanism
DE1224640B (de) * 1965-08-02 1966-09-08 Ver Schuhmaschinen G M B H Deu Verfahren und Vorrichtung zum Abteilen und Abwerfen von Befestigungsmitteln, z. B. Naegeln an Schuhmaschinen, insbesondere Aufzwickmaschinen
DE1785305A1 (de) * 1967-09-11 1972-01-05 Zd Y Przesneho Strojirenstvi G Vorrichtung zum Zufuehren von Naegeln
US4694974A (en) * 1985-06-14 1987-09-22 Michael Heck Escapement apparatus for an automatic screw feeding machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1342415A (en) * 1918-07-11 1920-06-08 United Shoe Machinery Corp Nail-distributing machine

Also Published As

Publication number Publication date
BR8806381A (pt) 1989-08-22
DE3740941A1 (de) 1989-06-22
DE3740941C3 (de) 1994-07-07
SU1706382A3 (ru) 1992-01-15
US4907718A (en) 1990-03-13
EP0318877A2 (de) 1989-06-07
DE3740941C2 (enrdf_load_stackoverflow) 1989-09-28
EP0318877A3 (en) 1990-04-18
ES2047533T3 (es) 1994-03-01

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