JP2004291151A - Component delivery method of assembly line - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve efficiency of a component marshalling of an assembly line and to certainly reuse resources for transportation such as a pallet, plug and socket, or the like during component transportation and sub resources such as buffer materials. <P>SOLUTION: A component supplier attaches a component name tag 21 having filled-in delivery component name and delivery place for each component required for one machine, and stores each delivery component together with the tag 21 in a component carriage 10 having a carriage display board 13 having the filled-in delivery place same as the delivery place filled in the tag 21. After that, the component carriage 10 is moved to the assembly line, and the components are taken out of the component carriage 10 and the machine is assembled according to an assembling procedure. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method for delivering parts on an assembly line.
[0002]
[Prior art]
In an assembly line for assembling a relatively large machine such as a construction machine such as a hydraulic excavator or an industrial vehicle such as a forklift, the assembling base of the machine is installed on a conveyor, the conveyor is moved at a predetermined production speed, and the assembly is performed. A method of assembling parts sequentially in a process order is often adopted. In this case, among the parts for assembling, relatively large parts are supplied by a supply unit provided in the order of the assembling process beside the conveyor, but small parts are made corresponding to each assembling machine to a parts carriage or the like. Some parts are loaded, and the parts cart is installed and prepared near the assembly line in advance.
[0003]
In order to load and prepare the necessary parts of each assembling machine on the parts cart before starting assembly, parts marshalling from a parts delivery shelf (rack or the like) in which parts delivered from a trader are stored (this This is an operation of collecting parts necessary for assembling each machine and loading the parts on a parts truck corresponding to the assembling machine.) 5 and 6 show an example of a conventional parts delivery and marshalling operation process for this purpose. Hereinafter, the conventional operation process will be described with reference to FIGS. 5 and 6. FIG.
[0004]
First, the parts supplier delivers the parts to the customer's factory by truck or the like, and submits a delivery slip (an actual product list, a delivery note, a receipt, etc.) to the delivery reception department (step S11). In this case, the parts are transported according to the shape of the parts and the number of parts to be delivered, etc., and are transported in a state where they are not easily damaged during transportation. A special pallet or plastic case (usually called a plastic container) And abbreviated as a plastic computer in the following). Next, the delivery reception department receives the delivery slip (delivery note), and presses a receipt stamp or the like on the receipt to inspect it (step S12). Next, the parts supplier transports the delivered parts to the warehouse in the factory using the truck or the like (step S13). Then, it is stored in the parts shelf 1 such as a flow rack as shown in FIG. 6, which is provided in the storage area (step S14a). The parts shelf 1 has a storage space determined for each part, and the parts supplier stores the parts in storage areas corresponding to the respective parts.
[0005]
Thereafter, according to the assembly start plan of each machine of the assembly line, the assembly section factory takes out the parts necessary for each assembly machine from the parts shelf 1 as shown in FIG. Are loaded on the parts truck 2 provided corresponding to each assembly machine. When all the parts are loaded (marshalling is completed), the parts cart 2 is arranged and arranged near the start position of the assembly line in the order of the assembly plan, and the preparation is completed (step S14b). Thereafter, when the assembly start time comes, the parts cart 2 corresponding to the assembly machine number is placed on the assembly line, and assembly is started (step S15).
[0006]
On the other hand, if the empty pallets or empty plastics are generated after marshalling the parts from the parts shelf 1 in the step S14, the process clerk collects and transports them (step S16) and accumulates them at a predetermined accumulation place in the factory. It is put (step S17). Thereafter, when the parts supplier delivers the parts, on the way home, he collects his own empty pallets and empty plastics from the accumulation site and brings them back (step S18a).
[0007]
In addition, there is no prior art document concerning the method of delivering parts on the assembly line as described above.
[0008]
[Problems to be solved by the invention]
However, the conventional parts delivery and marshalling methods have several problems as described below, and improvements are strongly demanded.
With the recent trend of high-mix low-volume production, the number of parts to be delivered has increased significantly. Therefore, each part is taken out from each storage location on the parts shelf 1 and marshalled to a parts cart corresponding to each assembly machine. It takes a lot of time to do so, which is a major problem in increasing production efficiency.
[0009]
In addition, pallets, plastic computers, and the like for transporting parts may be lost, and in many cases, parts suppliers cannot reliably collect them, and this leads to an increase in cost due to such unnecessary loss.
In addition, auxiliary materials such as cushioning materials and packaging materials to prevent breakage and damage of parts when transporting parts remain on the pallet, plastic computer, etc. until the parts are removed from the pallet, plastic computer, etc., and are collected by the parts supplier Not treated as industrial waste from factories. For this reason, the waste disposal cost of the factory increases, and the total production cost increases. Disposal of secondary materials such as cushioning materials is also an important issue in terms of effective use of resources.
[0010]
The present invention has been made in view of the above-mentioned problems, and can improve the efficiency of marshalling of parts on an assembly line, and ensure that materials for transportation such as pallets and plastics at the time of parts transportation and auxiliary materials such as cushioning materials are used. The purpose of the present invention is to provide a method for delivering parts on an assembly line that can be reused in a vehicle.
[0011]
Means for Solving the Problems, Functions and Effects
In order to achieve the above object, a first aspect of the present invention is a method for delivering parts on an assembly line, wherein the parts supplier attaches an actual tag in which a name of a delivered part and a delivery location are entered for each part required for one machine, The parts to be delivered are stored together with the tag on a parts truck 10 provided with a truck sign board 13 on which the same delivery location as that on the tag is entered, and thereafter, the parts truck 10 is moved to an assembly line. Then, the parts are taken out from the parts carriage 10 in accordance with the order of the assembling process, and the machine is assembled.
[0012]
According to the first invention, since the parts supplier directly stores the parts on the parts cart at the delivery location specified by the physical tag, there is no need to perform the marshalling operation of the parts from the storage shelf as in the conventional case, and the production efficiency is reduced. Can be greatly improved. In addition, after the parts supplier stores the parts directly in the parts cart described above, if there are transporting materials such as empty pallets and empty plastic computers and auxiliary materials such as cushioning materials, they will be recovered on the spot and lost. The total cost can be reduced by reusing it, without fail. In addition, the amount of industrial waste in the factory can be reduced, so that the total cost for manufacturing can be reduced and the concept of environmental protection in recent years that does not generate factory waste (so-called zero emission). Can also be adapted.
[0013]
According to a second invention, in the parts delivery method for an assembly line based on the first invention, the parts cart is provided with a plurality of storage sections separated from each other, and the physical tag is a storage section for storing the delivered parts. The location is filled in with the method.
[0014]
According to the second aspect of the present invention, since the position of the storage section for storing the delivered part is described in the physical tag, it is easy to check whether there is a mistake in delivery or non-delivery of the part, and the actual part of the delivered part can be checked. Confirmation can be made surely, and delivery mistakes, missing parts, etc. can be immediately known at the time of delivery, so that the response measures can be taken early.
[0015]
A third invention is a method of delivering parts on an assembly line based on the first or second invention, wherein the parts carriage is moved together with the assembly line in correspondence with each assembly machine.
[0016]
According to the third aspect of the present invention, since the respective component trucks are also moved corresponding to the respective assembly machines, it is easy to take out the components from the component trucks, and it is possible to improve the assemblability.
[0017]
According to a fourth invention, in the parts delivery method for an assembly line based on the first, second, or third invention, the parts cart is loaded with parts corresponding to one model of one model.
[0018]
According to the fourth aspect of the present invention, it is possible to accurately check for excess or deficiency of parts of each parts truck at the parts delivery stage, and to find out undelivered parts, missing parts, etc. of delivered parts at an early stage, and to take prompt measures, so that an assembly line can be taken. It can be operated stably.
[0019]
According to a fifth aspect of the present invention, in the component delivery method for an assembly line based on the first, second, third or fourth aspect, the information on the delivery location is a date and time necessary for assembling the component.
[0020]
According to the fifth aspect, it is easy to timely associate the parts cart with the assembly line, the parts delivery timing is easy to understand, and the time management of the line operation can be accurately performed.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0022]
FIG. 1 is a flowchart showing a business process according to the present invention. First, a business process of parts delivery will be described with reference to FIG.
Steps S1 to S3 are the same as steps S11 to S13. Thereafter, the parts supplier directly stores each part together with the actual tag at the designated storage position of the parts truck specified by the actual tag of the delivery slip at the warehouse (step S4).
[0023]
Next, before the assembly start time, the process clerk arranges the parts trucks in the order of assembly near the start position of the assembly line and prepares for assembly, and when the assembly start time comes, it corresponds to the assembly machine number on the assembly line The above-described parts cart is placed and assembly is started (step S5). On the other hand, after the step S4, the parts supplier collects the secondary materials such as the empty pallet, the empty plastic computer, and the cushioning material on the spot (steps S8, S9).
[0024]
Here, a description will be given of the parts truck at the warehouse and the method of delivering the parts in the step S4.
FIG. 2 is an explanatory diagram of a parking lot according to the embodiment. As shown in FIG. 2, instead of the conventional parts shelf 1 (see FIG. 6), a plurality of parts carts 10-1, 13-13,. 1, 10-2,..., 10-n are arranged. The parts carts 10-1, 10-2,..., 10-n are arranged in assembling machine types, for example, in ascending start time order.
[0025]
FIG. 3 is a perspective view of the parts truck. The parts cart 10 includes a moving unit 11 such as a caster or a wheel at a lower part, a plurality of storage shelves 12 at an upper part of the moving unit 11, and a position easily visible at the uppermost stage (the fourth stage in the present embodiment). The trolley marking plate 13 is provided on the vehicle, and a plurality of partition members 14 are provided. Further, the moving means 11 is provided with a foot-operated stopper device 15 so that the parts cart 10 can be fixed at an arbitrary position so as not to move.
[0026]
As shown in FIG. 4, information for specifying each component trolley 10 is written on the trolley marking plate 13. For example, a line-on date (corresponding to an assembly date), a line-on time (assembly start time) ), Model code, machine number, etc.
[0027]
On the other hand, as shown in FIG. 4, on the tag 21, items for specifying parts and items for specifying a delivery place are entered. Parts specification items include part names, number of deliveries, their barcodes, etc.Delivery place specification items include delivery date, delivery time, unloading place name, storage place name, and their instruction codes, barcodes, etc. Is filled in.
The above-mentioned delivery date and delivery time correspond to the line-on date and line-on time of the bogie marking plate 13, respectively. The unloading place name indicates a place where the parts cart 10 is located, and the storage place name corresponds to the number of storage shelves to store the parts cart 10 (for example, the storage place “2X-1A4”). -D4 "represents the fourth row). Therefore, when the parts supplier stores the parts of each parts cart 10, the parts supplier 21 stores the parts in the designated parts cart 10 in the designated step position by associating the entries on the tag 21 and the cart signboard 13. ing.
[0028]
In the above embodiment, the parts cart 10 is shown as an example having a plurality of shelves partitioned in the horizontal direction. However, the present invention is not limited to this. For example, provided with moving means in the lower part, and provided with a plurality of storage partitioning sections separated from each other by a plurality of partition plates or the like partitioned in the front-rear and left-right directions in a container opened upward. It may be something. In addition, the number of storage divisions is not limited to the number (four stages) in the above embodiment.
[0029]
From the above, the following effects can be obtained by the component delivery method according to the present invention.
Since the parts supplier directly stores the parts in the parts cart 10 specified by the tag of the delivery slip at the specified position (in the above example, the step), the parts marshalling work from the storage shelf as conventionally performed is unnecessary. As a result, the production efficiency can be greatly improved.
Also, after the parts supplier directly stores the parts in the parts cart 10 described above, if there are transporting materials such as empty pallets and empty plastics and auxiliary materials such as cushioning materials, they are collected on the spot, so that It can be reliably collected without being lost, and the total cost can be reduced by reusing.
[0030]
In addition, this can reduce the amount of industrial waste in the factory, thereby reducing the total cost of manufacturing and meeting the recent concept of environmental protection (zero emission) that does not generate waste. Can be done. In addition, it is not necessary to limit the transportation style when delivering parts to a pallet, a plastic computer, or the like, and the degree of freedom is increased as compared with the related art, so that transportation costs can be reduced.
[0031]
Furthermore, a plurality of storage sections are provided on the parts cart 10, and the storage section to store the delivered parts is described in the actual tag to specify the delivery position of each part. It is easy to check if there is any, and it is possible to surely confirm the actual product of the delivered part, and it is also possible to immediately recognize a delivery error, missing item, etc. at the time of delivery, so that the corresponding measures can be taken early.
In addition, since parts for one model are loaded on the parts cart 10 in correspondence with each other, the excess or deficiency of the parts of each parts cart 10 can be accurately checked at the parts delivery stage. As a result, defects such as non-delivery of delivered parts, missing parts, etc. can be found at an early stage, and a quick response can be taken, so that the assembly line can be operated stably.
[0032]
In addition, by moving each of the parts carts 10 together with the conveyor, the parts carts 10 can be moved in accordance with the movement of each assembly machine. Therefore, it is easy to take out the parts from the part carts and to improve the assembling property.
In addition, it is easy to timely associate the parts cart 10 with the assembly line, the parts delivery timing is easy to understand, and the time management of the line operation can be accurately performed.
[Brief description of the drawings]
FIG. 1 is a flowchart showing a business process according to the present invention.
FIG. 2 is an explanatory diagram of a parking lot according to the embodiment.
FIG. 3 is a perspective view of a parts truck.
FIG. 4 is an explanatory diagram of correspondence between an actual tag and a parts cart.
FIG. 5 is an explanatory diagram of a conventional business process of parts delivery and marshalling.
FIG. 6 is an explanatory diagram of a conventional part marshalling operation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Parts shelf, 2 ... Parts trolley, 10, 10-1, 10-2, 10-n ... Parts trolley, 11 ... Moving means, 12 ... Storage shelf, 13, 13-1, 13-2, 13-n ... Trolley marking plate, 14... Partition member, 15. Stopper device, 21.

Claims (5)

In the parts delivery method of the assembly line,
The parts supplier attaches an actual tag (21) in which the name of the part to be delivered and the place of delivery are entered, for each part required for one machine,
The parts to be delivered are stored together with the actual tag (21) in a parts trolley (10) provided with a trolley marking plate (13) in which the same delivery location as the one in the actual tag (21) is entered,
Thereafter, the parts cart (10) is moved to an assembly line, and parts are taken out of the parts cart (10) in accordance with the order of the assembling process to assemble the machine. The parts delivery method for an assembly line according to claim 1,
A plurality of storage compartments (12) separated from each other on the parts carrier (10);
A part delivery method for an assembly line, characterized in that a position of a storage section (12) in which the delivered part is to be stored is entered in the physical tag (21). The parts delivery method for an assembly line according to claim 1 or 2,
The parts delivery method for an assembly line, wherein the parts cart (10) is moved together with the assembly line corresponding to each assembly machine. The parts delivery method for an assembly line according to claim 1, 2, or 3,
A parts delivery method for an assembly line, wherein parts for one model are loaded in correspondence with the parts cart (10). In the method for delivering parts of an assembly line according to any one of claims 1 to 4,
Wherein the information on the delivery location is a date and time necessary for assembling the part.

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