EP0677435A2 - Chariot pour transporter des pièces d'oeuvre - Google Patents

Chariot pour transporter des pièces d'oeuvre Download PDF

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Publication number
EP0677435A2
EP0677435A2 EP95109873A EP95109873A EP0677435A2 EP 0677435 A2 EP0677435 A2 EP 0677435A2 EP 95109873 A EP95109873 A EP 95109873A EP 95109873 A EP95109873 A EP 95109873A EP 0677435 A2 EP0677435 A2 EP 0677435A2
Authority
EP
European Patent Office
Prior art keywords
carriage
cam
sensor
speed
motor
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.)
Withdrawn
Application number
EP95109873A
Other languages
German (de)
English (en)
Other versions
EP0677435A3 (fr
Inventor
Erich Grossenbacher
Albrecht Trenner
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.)
Montech AG
Original Assignee
Montech AG
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 Montech AG filed Critical Montech AG
Publication of EP0677435A2 publication Critical patent/EP0677435A2/fr
Publication of EP0677435A3 publication Critical patent/EP0677435A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/002—Control or safety means for heart-points and crossings of aerial railways, funicular rack-railway
    • B61L23/005—Automatic control or safety means for points for operator-less railway, e.g. transportation systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C13/00—Locomotives or motor railcars characterised by their application to special systems or purposes
    • B61C13/04—Locomotives or motor railcars characterised by their application to special systems or purposes for elevated railways with rigid rails

Definitions

  • the invention relates to a carriage for transporting workpieces, material or the like.
  • a carriage for transporting workpieces, material or the like.
  • the rollers which are driven by a motor and move at least one carrier plate for the workpieces, the material or the like.
  • Such carriages are, for example, mounting plates which, if necessary supported laterally by wheels, are moved in a rail on a conveyor belt.
  • These carriages are disadvantageous because they cannot keep a certain distance from one another. Furthermore, their positioning in the processing station is necessary because they themselves cannot assume a predetermined position. Furthermore, the conveyor belt also runs when the carriage or workpiece carrier is in a processing station or in a storage section. This leads to constant friction between the conveyor belt and the carriage or workpiece carrier, excessive wear and high end-energy consumption.
  • Stopping and opening the carriages always gives them a mechanical impact, which is transferred to the workpieces and causes noise.
  • a change of direction of these workpiece carriers can only be achieved with great mechanical effort.
  • the resilience of the conveyor belts is limited by the high friction.
  • Another system known from DE-A 26 11 611, consists of a vertical spring steel strip on which carriages circulate by means of support and support rollers. One of the idlers is driven. This system is unable to create a deliberate jam. This is necessary to achieve a carriage change in a processing station within the shortest possible time, which results in a minimal downtime of the processing station.
  • the present invention has for its object to provide a carriage of the above.
  • a distance sensor with a predetermined scanning distance in the direction of movement of the carriage is arranged on the carriage.
  • a control takes over the regulation of the travel of the carriage. Above all, obstacles are also recognized and, based on this knowledge, braking and stopping of the carriage are initiated. Furthermore, the control should also perform positioning within a processing station.
  • This control according to the invention in which a braking operation is initiated by means of cams or the like arranged on the rail by signal transmitters, can be used not only in the carriage described here, but also in similar workpiece carriers.
  • the method is characterized in particular by the fact that, for example for initiating a braking operation, a number of cams are connected in series, each of which causes the speed to be reduced. The last cam then stops the carriage. In this way the carriage is preferably positioned very precisely in a processing station.
  • the carriage can also be braked to a lower speed in a similar manner before curves or switches and accelerated again to maximum speed after the curve or switch.
  • the preferred motor is a brushless DC motor, which is in engagement with at least one roller via a toothed belt transmission.
  • the motor itself is connected to pantographs via a suitable control system, which are operatively connected to busbars on the rail of the longitudinal transfer system.
  • a carriage 1 according to the invention is arranged on a rail 2 of a longitudinal transfer system which is otherwise not shown in detail.
  • This carriage 1 serves, for example, as a workpiece carrier for transporting workpieces from processing stations to processing stations or also as a material carrier from a depot to a processing station.
  • This carriage 1 preferably travels automatically on the rail 2.
  • two rollers 3 and 4 are provided on both sides of the rail, the outer contours of which are matched to a contact surface on the rail 2.
  • a spherical-conical section 6 follows a disk-shaped section 5.
  • This embodiment has proven to be particularly advantageous since a shoulder 7 of the rail 2 is contoured in a similar manner.
  • the carriage 1 is supported very well on the shoulder 7 and also causes the roller 3 to adhere well to the shoulder 7 due to the contact pressure.
  • the vulcanized outer contours of the rollers 3 and 4 make it very quiet Run reached.
  • the spherical cone shape of the rollers leads to a theoretical point contact on the shoulder 7, avoids different peripheral speeds and thus abrasion caused by sliding friction.
  • the rollers 3 and 4 are otherwise designed so that they center the carriage 1 on the rail 2 and prevent slipping sideways.
  • the rollers have the largest possible diameter, in order to ensure smooth running, especially with rail couplings.
  • Housing chambers 30 and 31 each have a support roller 9 on their lower side, which are supported by vertically arranged eccentric axes 8.
  • the primary role of these support rollers 9 is to give the carriage 1 a statically defined position on the rail 2, in particular when the carriage 1 is subjected to one-sided loads.
  • the roller 4 is driven by a motor, not shown in detail, which in the present exemplary embodiment is a brushless DC motor (external rotor).
  • This motor drives the roller 4 via a toothed belt transmission 14, which acts as a friction wheel on the rail 2.
  • the motor is preferably fed with electrical energy.
  • the busbars 16 are fixed in corresponding guides 17 on the rail 2, for example clipped on.
  • the current collectors 15 are connected to the motor and to a controller 18 in the housing chamber 31 via lines (not shown in more detail).
  • the motor controller will be described later.
  • the two housing chambers 30 and 31 are connected to one another via a carrier plate 32.
  • This carrier plate 32 is configured in cross section such that a number of Guide channels 33 are provided, via which corresponding lines can be guided between the individual housing chambers 30 and 31.
  • the lines are used to link sensors that have the task of recording the signals necessary for controlling the carriage.
  • a positioning device which slightly lifts a mounting plate 34 located on the carriage and isolates the carriage from the actual machining influences such as forces of all types and directions, elastic deformations, vibrations, heat generation etc. isolated.
  • the lifting and positioning device should be the subject of a separate application for protection and is therefore not described in more detail here.
  • the mounting plate 34 is part of the carriage.
  • the engagement of a conical pivot pin 20 in a bore 35 centers the mounting plate 34 on the carriage 1.
  • the forces acting vertically on the mounting plate 34 are absorbed by eight bearing points, namely four per support plate 32.
  • These four-point supports are formed by two pairs of rollers 39. Due to their low friction, the pairs of rollers 39 contribute to the fact that the deflection and deflection energy of the mounting plate 34 on the carrier plates 32 can be kept as small as possible during cornering.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Intermediate Stations On Conveyors (AREA)
EP95109873A 1993-03-30 1994-03-18 Chariot pour transporter des pièces d'oeuvre. Withdrawn EP0677435A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4310377 1993-03-30
DE19934310377 DE4310377A1 (de) 1993-03-30 1993-03-30 Laufwagen zum Transport von Werkstücken
EP94104257A EP0618123A1 (fr) 1993-03-30 1994-03-18 Chariot pour transporter des pièces d'oeuvre

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP94104257.4 Division 1994-03-18

Publications (2)

Publication Number Publication Date
EP0677435A2 true EP0677435A2 (fr) 1995-10-18
EP0677435A3 EP0677435A3 (fr) 1996-02-28

Family

ID=6484263

Family Applications (2)

Application Number Title Priority Date Filing Date
EP95109873A Withdrawn EP0677435A3 (fr) 1993-03-30 1994-03-18 Chariot pour transporter des pièces d'oeuvre.
EP94104257A Withdrawn EP0618123A1 (fr) 1993-03-30 1994-03-18 Chariot pour transporter des pièces d'oeuvre

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP94104257A Withdrawn EP0618123A1 (fr) 1993-03-30 1994-03-18 Chariot pour transporter des pièces d'oeuvre

Country Status (2)

Country Link
EP (2) EP0677435A3 (fr)
DE (1) DE4310377A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506670A1 (de) * 1995-02-25 1996-08-29 Montech Ag Laufwagen zum Transport von Werkstücken
DE19540922B4 (de) * 1995-11-03 2007-12-06 Montech Ag Längstransfersystem
ITPD20050053A1 (it) * 2005-02-24 2006-08-25 Alessandro Gottardo Impianto per la selezione e lo smistamento di prodotti
DE102006062174A1 (de) * 2006-12-22 2008-07-03 Emil Schmid Maschinen- und Apparatebau GmbH & Co. KG. Werkstücktransportvorrichtung
CN109878998B (zh) * 2019-03-29 2024-03-22 奥星制药技术设备（南京）有限公司 一种履带式小车式自动进出料装置
DE102021209292A1 (de) 2021-08-24 2023-03-02 Montratec Gmbh Vorrichtung zur Energie- und/oder Signalübertragung und Schienenfahrzeug umfassend eine derartige Vorrichtung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611611A1 (de) 1976-03-19 1977-09-22 Gehomat Giss & Hofner Einschienenbahn mit selbsttaetiger steuerung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031355A1 (de) * 1980-08-20 1982-04-01 Bleichert Förderanlagen GmbH, 6960 Osterburken Schienenfoerdervorrichtung mit durchgehender kopfschiene
IT8520779V0 (it) * 1985-02-13 1985-02-13 Canziani Francesco Carrello a movimentazione autonoma, per impianti di smistamento
DE8816616U1 (de) * 1987-10-23 1990-02-01 Barmag AG, 5630 Remscheid Förderwagen für Einschienen-Hängebahnen
DE3806347A1 (de) * 1988-02-27 1989-09-07 Kirschner Gmbh & Co Kg Transportsystem
JP2844073B2 (ja) * 1989-01-19 1999-01-06 中西金属工業株式会社 キャリヤ自走式コンベヤ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611611A1 (de) 1976-03-19 1977-09-22 Gehomat Giss & Hofner Einschienenbahn mit selbsttaetiger steuerung

Also Published As

Publication number Publication date
EP0677435A3 (fr) 1996-02-28
DE4310377A1 (de) 1994-10-06
EP0618123A1 (fr) 1994-10-05

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