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EP1795487A1 - Méthode de pré-assemblage pour un escalier roulant ou trottoir roulant et ligne d'assemblage correspondant. - Google Patents

Méthode de pré-assemblage pour un escalier roulant ou trottoir roulant et ligne d'assemblage correspondant. Download PDF

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Publication number
EP1795487A1
EP1795487A1 EP06125371A EP06125371A EP1795487A1 EP 1795487 A1 EP1795487 A1 EP 1795487A1 EP 06125371 A EP06125371 A EP 06125371A EP 06125371 A EP06125371 A EP 06125371A EP 1795487 A1 EP1795487 A1 EP 1795487A1
Authority
EP
European Patent Office
Prior art keywords
assembly
station
steps
plant
production control
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.)
Granted
Application number
EP06125371A
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German (de)
English (en)
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EP1795487B1 (fr
Inventor
Gerry Encinas
Michael Matheisl
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Inventio AG
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Inventio AG
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Priority to EP06125371A priority Critical patent/EP1795487B1/fr
Priority to PL06125371T priority patent/PL1795487T3/pl
Publication of EP1795487A1 publication Critical patent/EP1795487A1/fr
Application granted granted Critical
Publication of EP1795487B1 publication Critical patent/EP1795487B1/fr
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00Component parts of escalators or moving walkways

Definitions

  • the invention relates to a method and an assembly plant for factory pre-assembly of an escalator or moving pavement driving system according to the preamble of claim 1 and 10 respectively.
  • Such driving systems are characterized by a high weight and long length.
  • the weight of an escalator is typically in the range of 10 t, the length of an escalator can be 30 m and more.
  • These driving systems are difficult to move and require the use of powerful overhead cranes, which can only generate slow movements.
  • various escalators are arranged in an assembly hall parallel to each other in a specific order.
  • the position of the escalator in the order corresponds to a predetermined processing state. In the first position is only the prefabricated structure of the escalator. In the last position sheet metal covers are mounted on the then finished escalator.
  • Each escalator is moved to a next position by the hall crane and can stay in any position for up to three to four days.
  • the escalators are processed independently and moved independently to a next position. After 10-15 Days the escalator has normally gone through all the assembly steps.
  • the disadvantage is that the escalators can not be arranged one after the other due to the length, because the resulting length of the driving systems would quickly exceed the length of the assembly hall. Also, the escalators are held as long as possible in their position because they are difficult to move.
  • This type of pre-assembly is not very flexible, difficult to plan and control, leads to relatively high costs and takes a lot of time.
  • Another task is to make the pre-assembly controllable and thus to be able to coordinate the different processes as possible in order to save costs.
  • the present invention aims to improve the known manufacturing techniques for escalators and moving walks and to reduce the cost of creating such driving systems.
  • the present invention solves the problem in that it provides for the factory pre-assembly of an escalator or moving walkway driving system several assembly steps. These are in assembly systems with several assembly stations, with several vorzumontierende driving systems are simultaneously in the assembly system, executed.
  • station-specific assembly steps are carried out at a currently located in the field of assembly station driving system.
  • the driving systems are individually shifted in transfer steps from one assembly station to a subsequent assembly station, wherein the execution of the assembly steps and the execution of the transfer steps in the assembly plant is controlled by a production control so that the driving systems are alternately subjected to transfer steps and assembly steps.
  • the assembly steps in the assembly plant run in a predetermined, defined clock, which is defined by a standard assembly time window.
  • the parts to be assembled required in the pre-assembly can be provided directly at a location advantageously at the required assembly station.
  • the production control can control and monitor the entire assembly plant. As a result, information about the current production status of the pre-assembled driving systems can be queried at the production control.
  • the driving systems located in the assembly plant are monitored and controlled by the production control so that after a standard assembly time window transfer steps are carried out to move the driving systems individually to each next assembly station.
  • the production control takes measures to shorten the assembly time effectively required at a mounting station if it is expected that blocked by too long assembly steps this assembly station and thus the clock is disturbed. This may be, for example, by additionally providing resources and / or by providing components preassembled to a higher degree and / or by additionally providing assembly forces.
  • the production control can also, or additionally, control the assembly plant so that after a time-consuming to be mounted driving system a less time consuming to be mounted driving system passes through the assembly stations.
  • the assembly stations are arranged in the order of the assembly steps to be performed, and have assembly step specific tooling means as well as means for providing a stock of assembly step specific assembly components.
  • the assembly plant comprises at least one transport vehicle in order to individually move a pre-assembled driving system from one assembly station to the next assembly station.
  • the driving systems can be moved without much effort in the assembly system. With a transport vehicle, the truss frame or depending on completion can be easily accelerated and decelerated. Thus, a safe maneuvering in the production plant is possible.
  • the driving systems can also be moved from the assembly to the evacuation stations with the help of the transport vehicles.
  • the production control is a computer-aided manufacturing control, which controls and pre-assembles several driving systems by means of sensors and output units.
  • the driving systems are mounted and transported on truss frames, wherein preferably rollers are attached to or under the truss frame.
  • the facilities for providing a stock are facilities that are organized according to the kanban principle.
  • the production control is linked to a just-in-time system.
  • the production control system advantageously triggers the provision of material required at a respective assembly station in such a timely manner that no delays occur during assembly, the material preferably being provided in pickled material wagons.
  • the picked material wagons can be used to provide all the parts to be assembled for a job. This can be done a review of the quantity and quality of the parts to be assembled. In addition, there is always only as much material as is needed in the assembly station. This can reduce storage costs.
  • At least one of the following assembly stations is present in an assembly plant: preparation station, station for installing electrical components, station for mounting balustrades and / or steps, test station for testing the preassembled driving systems, packaging station.
  • At least one avoidance station is provided in order to temporarily remove a driving system from the pre-assembly and to prevent blocking of an assembly station.
  • the cause of such a fault may be, for example, a faulty functioning test of a driving system or problems in the supply of parts to be assembled or failure to comply with the standard assembly time window or special equipment, which is usually above standard time window.
  • the production control also controls and controls the material flow.
  • a production control 30 which comprises software or in which software can be linked to the production control 30 in order to be able to plan pre-assembly processes in an assembly plant 20.
  • the pre-assembly of a driving system 10 is broken down into a series of (standardized) basic assembly steps which are carried out in all driving systems 10.
  • all further steps are selected or defined, which are to be executed. These are optional steps.
  • Said software is preferably designed so that it is able to determine the required time T1, which will be necessary for the execution of all steps to be carried out at an assembly station 20 (basic assembly steps and optional steps). If this time T1 is shorter than a predetermined standard assembly time window T, the corresponding steps can be stored, for example. This process can be repeated for each assembly station 20. The same process is performed for each driving system 10 to be pre-assembled in a unit time (for example, on a certain day) in order to plan the operations to be performed during that time unit (for example, on the specified day).
  • the software is designed so that any temporal bottlenecks can be detected in order to take measures already in the planning phase to ensure compliance with a (production) cycle ⁇ .
  • a Measure for example, a time division to make so that a very time-consuming to be mounted driving system 10.3 10.2 follows a driving system that requires less assembly time.
  • the time-consuming to be mounted driving system 10.3 may need a little more time than the standard assembly time window T provides. Due to the fact that a driving system 10.2 follows, which then requires less time, the assembly process via these two driving systems 10.2 and 10.3 remains averaged within the given cycle ⁇ .
  • the software is designed so that any time bottlenecks can be detected during the effective assembly in order to intervene corrective.
  • the manufacturing controller 30 may provide additional resources or trigger their deployment. But it is also possible to remove a driving system 10 (at least temporarily) from the production line to allow compliance with the clock ⁇ .
  • avoidance stations in Fig. 2, for example, the assembly stations 20.10 to 20.13
  • the station 20.4 can be, for example, a test station in which various mechanical and / or electrical functional tests can be carried out.
  • a driving system 10 that has not passed the functional test may be moved to an evasion station (in FIG. 2, for example, the assembly station 20.10).
  • a driving system 10.14 is shown, which is being improved at the Dodge 20.10.
  • An assembly system 20 preferably comprises a software-based planning control 31 and a software-based production control 30, as shown in FIG. In a preferred embodiment, these two controls 30 and 31 are linked together, as indicated by the arrow 41.
  • the scheduling controller 31 determines before commencing production which driving systems 10 are manufactured one after the other at a particular time.
  • the scheduling controller 31 also determines what time a standard assembly time window T has.
  • this time T is between 3 and 4 hours.
  • T about 3.5 h, since in this case at least two driving systems 10 pre-assembled in a working shift leave the assembly plant 20.
  • the assembly time T1 effectively required per driving system 10 at an assembly station 20.1 - 20.n should be less than or equal to the standard assembly time window T in order to be able to remain in a given cycle ⁇ relative to the entire assembly plant 20.
  • the installation times T1 for different driving systems may be different for the driving system.
  • the planning controller 31 knows both the production times of a standard driving system 10 and the production times of possible optional assembly steps.
  • the scheduling controller 31 is able to schedule the production flow such that, for example, a driving system 10.4 (ie, T1 10.4 ⁇ T) below the standard assembly time window T, a second driving system exceeding the standard assembly time window T (ie, T1 10.3 > T) 10.3 follows, or vice versa (this means averaged over two assembly stations in total: T1 10.4 + T1 10.3 ⁇ 2T).
  • a limited out of tact of the standard assembly time window is tolerated.
  • the clock ⁇ synchronize and thus get out of tact the whole assembly system 20 prevent.
  • the scheduling controller 31 may also help organize the flow of material for the parts to be assembled, depending on the embodiment. These can be obtained, for example, just-in-time from suppliers.
  • the planning control 31 serves in this case, the timely order of the necessary parts.
  • the production control 30 may also be connectable to a just-in-time system. It is advantageously displayed the availability of the parts to be assembled after their arrival.
  • just-in-time is meant that the parts to be mounted are brought directly without storage from a goods receipt to the assembly plant 20 or the individual assembly stations 20.1 - 20.n. As a result, the cost of storage can be reduced.
  • the parts must, however, be ordered in good time with a certain lead time from the supplier, which is e.g. can be triggered or executed by the scheduling controller 31.
  • the lead time refers to that time from the order to the arrival of the parts to be assembled in the assembly plant 20.
  • the lead time is individual for each part to be assembled and must be known in the order and can be taken into account by the planning controller 31.
  • the scheduling controller 31 may treat each driving system 10.1 - 10.n as a single (data) object, as in FIG Fig. 5 schematically indicated by the blocks 10.2, 10.3, 10.4 and 10.5.
  • temporal deviations indicated in FIG. 5 by the reference numeral 33
  • FIG. 5 temporal deviations
  • FIG. 5 can be taken into account here, which are necessary in the preassembly of less time-consuming driving systems (eg driving system 10.4 in FIG. 5) and time-consuming driving systems (FIG. eg driving system 10.3 in Fig. 5) will occur.
  • the production control 30 receives the data for the production of the driving systems 10.1-10.n, preferably from the planning control 31, as indicated in FIG. 5 by the arrow 41. However, the production control 30 can also be operated as a completely independent system.
  • the production control 30 is designed such that it monitors and directly controls the production process of a plurality of driving systems 10.1-10.
  • Various measures may be available to the production control 30 in order to shorten the assembly time effectively required at an assembly station 20.1 - 20.n if it is to be expected that one or more of these assembly stations 20.1 - 20.n will be blocked by too long assembly steps and thus the Clock ⁇ would be disturbed.
  • the production control 30 may have a corresponding module (eg, a software module) 35, as indicated in FIG.
  • the production control 30 can also, if required in the area of that assembly station 20.1 - 20.n, which threatens to be blocked, already provide pre-assembled components to a higher degree or trigger their provision. Pre-assembly increases the degree of preprocessing of parts to be assembled, so that at the assembly station 20.1 - 20.n the parts to be assembled can be installed directly as a module. Thus, assembly time that is not available in the assembly station 20.1 - 20.n can be outsourced to another workstation.
  • the manufacturing controller 30 may include a corresponding module (e.g., a software module) 36, as indicated in FIG.
  • the manufacturing controller 30 may include a corresponding module (e.g., a software module) 37, as indicated in FIG.
  • the decision as to which of the measures described above should be taken in the event of a fault is preferably met by the production control 30 itself.
  • a decision by the production control 30 is influenced by a corresponding input.
  • the production control 30 is always informed about the current production status, the position of the driving systems 10.1 - 10.n and, if present, about faults in the driving system assembly.
  • reference numeral 38 indicates that the corresponding information about the current positions of the driving systems 10. 1 - 10. N is transferred to the production control 30.
  • the production control 30 can receive further production-relevant data, for example via a barcode system and / or via sensors.
  • the required parts to be assembled are equipped with a barcode system. With a barcode reader at the assembly stations 20.1 - 20.n the position of the parts to be assembled and / or the progress of work is continuously communicated to the production control 30, as indicated in Fig. 5 by the reference numeral 39.
  • the driving systems 10 are equipped, for example, with sensors, so that the position of the driving systems 10 can be determined via radio waves or induction loops in the ground and communicated to the production control 30, as indicated in FIG. 5 by the reference numeral 39.
  • the driving systems 10 are factory pre-assembled in a process with several assembly steps. This pre-assembly will be described with reference to an embodiment of the invention shown in Fig. 2.
  • the individual steps are performed in an assembly plant 20 with several assembly stations 20.1 - 20.13.
  • the driving systems 10.1-10.17, as shown in FIG. 1, are premounted on truss frame 12 and transported individually from one of the assembly stations 20.1-20.9 to the subsequent assembly station 20.1 20.9, wherein rollers 13 are preferably attached to or under the truss frame 12.
  • These truss frames 12 are preferably moved by means of at least one transport vehicle 11. It does not matter if the driving systems located on the truss frame are each moved simultaneously with each own transport vehicle, or if less transport vehicles are available as a truss frame and thus the transport vehicles are disconnected. In the second variant, a wave-shaped locomotion of the truss frame results from a mounting station to the next within the assembly plant by a temporal offset.
  • the truss frames 12 are also correspondingly different in length due to the different lengths of driving systems 10.
  • an assembly plant 20 in which a plurality of driving systems 10.1-10.17 are located in a plurality of different assembly steps is shown.
  • station-specific assembly steps in the area of the assembly stations 20.1-20.13 are each performed on a travel system 10.1-10.17 currently located in the area of the respective assembly station.
  • the driving systems 10.1-10.17 are moved individually from an assembly station 20.1-20.13 to a subsequent assembly station 20.1-20.13 in the assembly plant. This move is called a transfer step.
  • the production control 30 controls the execution of the assembly steps and the execution of the transfer steps.
  • the production control 30 ensures that the driving systems 10.1-10.17 are alternately subjected to transfer steps and assembly steps, and that the assembly steps in the assembly plant 20 take place in a cycle ⁇ defined by a predetermined, fixed standard assembly time window T. That is, the manufacturing controller 30 ensures that the assembly of the driving systems 10.1 - 10.17, although normally no driving system is like another, runs in a synchronized manner.
  • Fig. 6 A and 6B two approaches are shown, which can be realized by an inventive control.
  • FIG. 6A a distinction is made between standard assembly time windows T and transfer time windows T T.
  • the driving systems 10.a, 10.b and 10.c need different lengths for performing station-specific assembly steps in the field of assembly stations.
  • T 10.a ⁇ T, T 10.b ⁇ T, and T 10.c ⁇ TDh none of the driving systems shown needs longer than the predetermined standard assembly time window T envisages. It can also be seen in Fig.
  • the driving system 10.a completes sooner and thereby provides a little more time to carry out the transfer step.
  • the driving system 10.a can only be moved to the next assembly station if it is free.
  • the assembly of the driving system 10.b does not start at the beginning of the cycle ⁇ , but somewhat delayed. For example, this may be because the transfer step took a little longer.
  • the assembly of the driving system 10.c does not start at the beginning of the clock ⁇ , but somewhat delayed. This driving system 10.c takes little time for assembly and is therefore ready long before the end of the standard assembly time window T.
  • the time remaining in the standard mounting time window T is designated as transfer time T Ta to T Tc and used for carrying out the transfer.
  • FIG. 4 another exemplary assembly plant 20 is shown. Based on block arrows, the shifting of the driving systems is indicated in FIG. 4 and the individual driving systems are represented by rectangles. The length of the block arrows indicates how long a transfer step takes.

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EP06125371A 2005-12-07 2006-12-05 Méthode de pré-assemblage pour un escalier roulant ou trottoir roulant et ligne d'assemblage correspondant. Active EP1795487B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06125371A EP1795487B1 (fr) 2005-12-07 2006-12-05 Méthode de pré-assemblage pour un escalier roulant ou trottoir roulant et ligne d'assemblage correspondant.
PL06125371T PL1795487T3 (pl) 2005-12-07 2006-12-05 Sposób fabrycznego wstępnego montażu systemu jezdnego i linia montażowa do produkcji systemu jezdnego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05111810 2005-12-07
EP06125371A EP1795487B1 (fr) 2005-12-07 2006-12-05 Méthode de pré-assemblage pour un escalier roulant ou trottoir roulant et ligne d'assemblage correspondant.

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EP1795487A1 true EP1795487A1 (fr) 2007-06-13
EP1795487B1 EP1795487B1 (fr) 2010-02-10

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EP06125371A Active EP1795487B1 (fr) 2005-12-07 2006-12-05 Méthode de pré-assemblage pour un escalier roulant ou trottoir roulant et ligne d'assemblage correspondant.

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EP (1) EP1795487B1 (fr)
PL (1) PL1795487T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103662643A (zh) * 2013-11-29 2014-03-26 南通剑桥输送设备有限公司 一种高度可调型输送装置
RU2729130C2 (ru) * 2016-03-10 2020-08-04 Инвенцио Аг Способ роботизированного изготовления несущей конструкции установки для перевозки людей
RU2729125C2 (ru) * 2016-03-10 2020-08-04 Инвенцио Аг Устройство для роботизированного изготовления несущей конструкции установки для перевозки людей

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2383225A (en) * 1942-10-24 1945-08-21 Ford Motor Co Aircraft manufacture
US5272805A (en) * 1991-04-01 1993-12-28 Fanuc Robotics North America, Inc. System for the flexible assembly of assemblies
GB2352692A (en) * 1999-08-03 2001-02-07 Honda Canada Inc An assembly line system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2383225A (en) * 1942-10-24 1945-08-21 Ford Motor Co Aircraft manufacture
US5272805A (en) * 1991-04-01 1993-12-28 Fanuc Robotics North America, Inc. System for the flexible assembly of assemblies
GB2352692A (en) * 1999-08-03 2001-02-07 Honda Canada Inc An assembly line system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103662643A (zh) * 2013-11-29 2014-03-26 南通剑桥输送设备有限公司 一种高度可调型输送装置
RU2729130C2 (ru) * 2016-03-10 2020-08-04 Инвенцио Аг Способ роботизированного изготовления несущей конструкции установки для перевозки людей
RU2729125C2 (ru) * 2016-03-10 2020-08-04 Инвенцио Аг Устройство для роботизированного изготовления несущей конструкции установки для перевозки людей

Also Published As

Publication number Publication date
PL1795487T3 (pl) 2010-07-30
EP1795487B1 (fr) 2010-02-10

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