JP5436150B2 - Multi-product manufacturing system and multi-product manufacturing method - Google Patents

Description

  The present invention relates to a multi-product manufacturing system and a multi-product manufacturing method for sequentially manufacturing a plurality of products having different man-hours in a plurality of processes in a mixed manner.

  A system for continuously producing products of the same type is known as a belt conveyor system, and is applied in various manufacturing fields. Various methods for producing different types of products by mixing them with a plurality of processes have been proposed and put into practical use. For example, since the number of man-hours is generally different for products of different varieties, there is known a manufacturing means for selecting a product input order for each process so that products having the same man-hour are not consecutive. However, it is not easy to level the man-hours over the entire process. For example, when the process is leveled with the neck process (man-hour = human work) as the first priority, the other processes are not leveled. For example, conventionally, as shown in FIG. 11, when manufacturing a variety of products continuously through a plurality of processes including a pre-process, a self-process, and a post-process, the man-hours of the pre-process are reduced. When leveling as the first priority, the order is rearranged so that the man-hours are leveled using the cycle table in the own process. In this case, if the product handling man-hours are extracted from the Kanban board corresponding to the product drawings A, B, and C, the product placed in the stocker via its own process is extracted for processing in the subsequent process. , “Kanban” are arranged in the order of magnitude relation of man-hours corresponding to figure numbers A, B, and C, for example, according to the cycle table of the own process. In this case, in each process, it is possible to select the product with the optimal man-hour at that time from the stocker before processing, and the man-hour for replenishing the product extracted in the post-process by the cycle table. Sorting can be done in descending order.

  FIG. 12A is an explanatory diagram of a conventional example using a tablet. In the case of custom-order production with a low production frequency, a tablet is added to a product, and a product to be processed in a subsequent process from the own process is transferred from the stocker. When picked up, the tablet is added to the product awaiting processing in its own process using the stocker. However, since the tablet does not have a figure number, the number of assembly steps, for example, large / medium / small, is entered and attached to the product. Therefore, in the self process, whether the product with the tablet attached is a product with a desired man-hour is determined based on the attached paper. If the product has the desired man-hour, the product is extracted from the stocker and put into the self process. It will be. The stocker has a configuration that allows first-in, first-out, and the like, and a configuration that can be rearranged according to the order of man-hours such as large / medium / small man-hours of a waiting product. In the case of illustration, the outline in the case of the structure arranged on the plane is shown. FIG. 12B is an explanatory diagram of a conventional example using a tablet and a cycle table, and the tablet attached to the product when the product to be processed in the post process is taken from the stocker after the self process. Return to the stocker side after the previous process, arrange them in the order of man-hours etc. according to the cycle table, and stocker products that are waiting for processing in their own process are classified and held according to the man-hours and processed in their own process according to the cycle table When the number of man-hours for the product is small, a product with a small number of man-hours is put into the own process from the stocker. (A) and (B) in FIG. 12 are called sequential production. When the above-mentioned product is, for example, a printed board, it is inserted into a protective carrying case and moved between the processes, and the product shown in FIGS. 11 and 12 is also stored in the carrying case. Although the external appearance is the same, as described above, the paper on which the man-hour is entered is attached to the carrying case so that the man-hour of the internal product can be identified.

  In addition, as a stocker between processes, first-in first-out can be configured, rotary conveyors for holding products between processes are provided in multiple stages, lifters for placing products on the rotary conveyor at a predetermined stage, and rotation at a predetermined stage 2. Description of the Related Art A stocker is known that includes a lifter that takes out a product from a type conveyor and can take out the product in a desired order (see, for example, Patent Document 1). Further, in a mixed production line that determines parts to be supplied to a plurality of production tables arranged along a production line, that is, a line in which products of different varieties are mixed and produced by flow work, for example, FIG. 11 or FIG. Means have been proposed for creating a cycle table similar to the cycle table shown in (B) of (see, for example, Patent Document 2 and Patent Document 3). Also, the lines corresponding to the above-mentioned processes are connected via a mixed flow warehouse, the production plan of each line is determined based on the inventory of the mixed flow warehouse, and the entire structure is composed of a leveling post and a kanban sorter. Means for managing production in a production system and reducing the amount of inventory have been proposed (see, for example, Patent Document 4).

JP-A-6-87503 Japanese Patent No. 2596050 Japanese Patent Laid-Open No. 01-234142 Japanese Patent Laid-Open No. 2001-325016

  In the case of post-replenishment production as shown in FIG. 11 above, it is possible to transmit product information with “Kanban” attached to each product. Therefore, before taking the product from the previous process in its own process, the contents of “Kanban” Based on the above, it is possible to rearrange the order of taking over to the own process. However, in the case of sequential production as shown in FIGS. 12A and 12B, since the tablet attached to the product does not have product information, it can be understood after taking the product from the previous process. . Therefore, for example, it is necessary to fill in and attach the man-hour category of the product on the paper or the like, as described with reference to FIG. (For example, FIG. 12A is a planar space, or FIG. 12B is a three-dimensional space). In addition, when the tablet is inserted into the cycle table and the order is changed (cycle table in FIG. 11 or 12B), there is a possibility that the insertion position of the tablet may be wrong. In this case, according to the set input pattern In addition, there is a problem that the product cannot be introduced. In addition, the order of input is changed in the own process, and the subsequent process side is returned to the original order, which requires a problem such as confirmation.

  An object of the present invention is to solve the above-described problems of the conventional example, reduce the burden on the worker, and allow each process to be input in a predetermined order.

  The multi-product manufacturing system of the present invention is a multi-product manufacturing system that sequentially manufactures a plurality of product types having different man-hours in a plurality of processes, and writes product information including the man-hours of the product and the product An IC tag capable of reading information; and a product buffer having a reader / writer that temporarily holds the product between the steps and writes and reads the product information to and from the IC tag attached to the product; And a control computer for managing the holding position of the product in the product buffer and the product information of the product in association with each other, and performing control for instructing the holding position of the product to be input to the next process.

  Further, the contents of the IC tag returned from the subsequent process to the self process are erased by the reader / writer of the product buffer between the plurality of processes, and the IC tag is added to the product to be put into the self process. And a control computer having a control configuration for writing product information of the product and managing the product information and the product holding position of the product buffer.

  The product buffer includes a reader / writer and a lamp for indicating a product holding position to be put into the next process by the control computer in correspondence with the product holding position.

  The multi-product manufacturing method of the present invention temporarily stores a product with an IC tag to which product information including the man-hour of the product can be written and read, in the product buffer, and the product information written to the IC tag is read / written. And the product information and the product holding position of the product buffer are associated with each other and managed by the control computer, and the products to be input to the next process are held so that the order of the steps set in advance by the control computer is held. Indicating the location of the product buffer.

  Also, the contents of the IC tag returned to the own process from the subsequent process are erased by the reader / writer of the product buffer between a plurality of processes, and this IC tag is added to the product to be put into the own process, and the product is attached to the IC tag. This includes writing information, managing the product information and the product holding position of the product buffer by the control computer, and instructing the product holding position of the product buffer so as to follow a preset process order.

  The multi-variety manufacturing system and multi-variety manufacturing method of the present invention includes an IC tag attached to a product, and product information including man-hours is written or read by a reader / writer provided at a product holding position of the product buffer. By managing the product holding position and the product information of the product, it is possible to take out the product from the product buffer according to the order of the steps set in advance by the control computer and put it into the next step. Also, since the rewritable IC tag is added to the product after erasing the written contents, unlike the conventional “Kanban” or tablet, the IC tag is attached to the product case, and the product information is written. When the product is taken out from the product, the product case is moved to the previous process side, and a new product is stored, the contents of the IC tag attached to the product case can be erased, and new product information can be written. There is an advantage that the control as described above is possible by the control of the control computer.

It is principal part process explanatory drawing of Example 1 of this invention. It is explanatory drawing of the control apparatus of Example 1 of this invention. It is a flowchart of Example 1 of this invention. It is explanatory drawing of the input product instruction | indication by lamp lighting of Example 1 of this invention. It is explanatory drawing of the head process of Example 1 of this invention. It is a summary explanatory drawing of the process between processes of Example 1 of this invention. It is explanatory drawing of the process end product insertion position instruction | indication of Example 1 of this invention. It is explanatory drawing of the process input product instruction | indication of Example 1 of this invention. It is process explanatory drawing of Example 1 of this invention. It is explanatory drawing of the product buffer of Example 2 of this invention. It is principal part explanatory drawing of the manufacturing process by the kanban system of a prior art example. It is explanatory drawing of the manufacturing process by the Kanban system of a prior art example.

Multi-product manufacturing system of the present invention is a multi-product manufacturing system in steps in a plurality of steps successively manufactured mix products of the same or different varieties each, product information, including the number of steps of said product writing, and reading and erasing can the IC tag, the temporarily holding each of said product between said plurality of steps, executable write the product information for the IC tag reading and erasing in a non-contact have a reader / writer, a product buffer having instruction means for instructing the holding position of the products and put into self-process, to the product buffer, and temporarily holds the product information holding position and said product of said product the association managed, and the select product product information on groups to be introduced in the next step of product, the instruction means for instructing the holding position of the product in the buffer of the product And a control computer for executing a process of controlling sequentially.

The multi-product manufacturing method of the present invention is a multi-product manufacturing method for sequentially manufacturing a plurality of product types having the same or different man-hours in a plurality of processes, and including product information including man-hours of the product . writing, to temporarily hold the product to the product buffer is added reading and possible IC tag erase, the product information written in the IC tag, reads the reader / writer provided in the product buffer, the a control process for managing the product information and the product buffer product holding position and the association with the control computer, such that the order of steps and set in advance based on the product information by the control computer, put into the next step And a control process for indicating the product holding position of the product buffer of the product .

  FIG. 1 is a process explanatory diagram of a main part of Embodiment 1 of the present invention, and (A) to (D) schematically show a part of the manufacturing process to be sequentially executed as a previous process and a self process. The post-process is not shown. Also, (E) and (F) show different means of product instructions to be input to the own process. Further, a tablet 24 with an IC tag (Integrated Circuit tag) to which data can be written and read is attached to a product case 22 for holding the finished product and moving to its own process. This IC tag is of the same type as RFID (Radio Frequency Identification), a memory capable of writing and reading data by contacting or approaching the reader / writer, a control function for the writing and reading, and a transmission / reception function And a semiconductor integrated circuit. The present invention uses a tablet to which this IC tag is added, and will be described as “tablet” hereinafter, and the state in which the IC tag data has been erased will be described as “blank tablet”. A reader / writer for writing and reading data to and from the tablet is provided in the product buffer between each process. 1A and 1B, the product buffer is not shown, but FIGS. 1E and 1F show perspective views of examples of the product buffer 11, respectively. ing. 1A is stored in a product case 22 and attached with a tablet 24, temporarily held in a slot of the product buffer 11, and the above-mentioned reader corresponding to each slot. A writer is provided to write and read data to and from the IC tag attached to the tablet 24.

  In FIG. 1A, a tablet indicated by a black circle about a product taken from the previous process in its own process is attached to an empty product case and returned to the empty case storage area on the previous process side. (B) of the figure clears the information of the tablet moved together with the empty product case, makes a blank tablet, and writes new product information at the next use. The case where the product to be assembled is stored in the product case 22 to which the tablet 24 is added is shown. Then, as shown in (C) of the figure, the product case with the tablet is put in the product buffer, and as shown in (D) of the figure, the product to be put into the own process from the previous process is controlled by a control computer (illustrated). Is omitted). For example, as shown in FIG. 5E, a lamp is provided on the upper side wall of the box-shaped product buffer 11 into which the product case 22 is inserted, corresponding to the slot position for storing and holding the product case 22, and the lamp is turned on. Can be directed. Alternatively, as shown in (F) of the figure, an openable and closable lid provided for the product case insertion position of the product buffer 11 is opened, so that the product case 22 inside can be taken out. Control of lighting of the lamp or opening / closing of the lid is performed by a control computer.

  FIG. 2 is an explanatory diagram of the control device according to the first embodiment of the present invention, in which 1 is a control computer, 2 is product information reading means, 3 is product information writing means, 4 is lamp control means, and 5 is slot information memory. , 6 is an input pattern comparison means, 7 is an input product instruction means, 8 is an input pattern memory, 9 is a keyboard, 10 is a display, 11 is a product buffer, 12 is a reader / writer corresponding to slots 1 to n, and 13 is a post process. Reader / writer, 14 is a lamp corresponding to slots 1 to n, 15 is an IC tag in its own process, and 16 is an IC tag in a subsequent process. The IC tags 15 and 16 are RFIDs that can write and read data by non-contact as described above. The IC tags 15 and 16 are supplied with a tablet that carries the IC tags 15 and 16 together with a product that is transported in the process, and the product after the process is completed. A tablet with an IC tag attached is attached to the product case. Further, the product information reading means of the control computer 1 has reader / writers 12 and 13 corresponding to the slots for accommodating the product cases of the product buffer 11 (see FIGS. 1C and 1D) disposed between the processes. By 2 and 3, product information including man-hours is written, erased and read out to the IC tags 15 and 16.

  The slot information memory 5 reads and stores information such as the man-hour of the product corresponding to the slot of the product case from the IC tag, and the input pattern comparison means 6 compares the information with the input pattern preset in the input pattern memory 8, and compares the input pattern. The product slot information is input to the input product instruction means 7. The input control instruction means 7 controls the lamp control means 4 so as to turn on the lamp indicating the product to be supplied, as shown in FIG. Alternatively, as shown in FIG. 1F, the lid of the slot corresponding to the product to be loaded is opened. Further, an erasing instruction for the IC tag 15 and a writing instruction for the product information writing means 3 are performed. In this case, it can be performed by an instruction from the input pattern comparison means 6 to the reader / writer corresponding to the slot of the product buffer 11.

  FIG. 3 is a flowchart of the first embodiment of the present invention, and steps (a1) to (a15) will be described with reference to the configuration of FIG. First, in its own process, the IC tag 15 is read by the reader / writer 12 (a1), the product information of the corresponding slot is written in the slot information memory 5 (a2), and the input pattern is set (a3). The pattern memory 8 is set (a4), the next pattern is obtained (a5), and the input pattern is compared (a6). The comparison matching product is determined as the target product (a7), the lamp 14 of the corresponding slot is turned on (a8), and the IC tag is written by the reader / writer 12 provided in the product buffer 11 in the subsequent process. (A9) When the writing is completed (a10), the IC tag of the corresponding slot is deleted (a11), and it is determined whether or not there is an IC tag in the corresponding slot (a12). Is turned off (a13), the memory contents corresponding to the corresponding slot are erased (a14), and it is determined whether or not the process is finished (a15). If not finished, the process proceeds to step (a1).

  FIG. 4 is an explanatory diagram of the input product instruction by lighting the lamp according to the first embodiment of the present invention. The input pattern is a case where the manhour is small, small, large, medium, small, large, medium, small, large. This input pattern is set in the input pattern memory 8 of the control computer 1 (see FIG. 2). Further, as shown in FIG. 1E or FIG. 1F, the product buffer 11 is inserted into a plurality of slots or one end for temporarily holding the product case 22 and is slidable to the other end side. It has. For example, in the case of FIG. 4, four slots are provided, and as described in FIG. 1E, the lamps 14 are provided in the respective slots, and the lamps 14 are controlled by the lamp control means 4 of the control computer 1. Control the lighting of. Also, the first slot, the second slot, the third slot, and the fourth slot are defined from the left side of the product buffer 11, and the first slot is vacant, the second slot is a product with a small man-hour, and the third slot is a man-hour. The product in the middle and the fourth slot have products with a large man-hour, and the input pattern shows a small man-hour, so the lamp in the second slot lights up, and when the product is taken out from the second slot, the product becomes empty. A state in which a product with a small man-hour is contained in the first slot. When the product with the small man-hour is entered, the product information is read by the reader / writer 12, and the relationship between the first slot and the product with the small man-hour is stored in the slot information memory 5. The lamp in the second slot from which the product is taken out is turned off.

  In the next second time, a product with a small man-hour has already entered the first slot, and the product information is read by the reader / writer 13 and stored in the slot information memory 5. The lamp of the first slot of the product buffer 11 in which the product is present is turned on. Therefore, the product is taken out from the first slot and put into the process. At that time, if a product with a large man-hour enters the second slot, the first slot is empty, and the second slot indicates a state in which a product with a large man-hour is inserted. Then, the lamp in the first slot is turned off. In the next third time, since the input pattern indicates a large man-hour, the lamp in the fourth slot of the product buffer 11 is turned on. In this case, the product buffer 11 performs a first-in first-out control to extract a product with a large man-hour in the fourth slot from a product with a large man-hour in the second slot. In the same manner, the product can be put into the process from the slot of the product buffer 11 that lights up according to the loading pattern.

  FIG. 5 is an explanatory diagram of the first process of the first embodiment of the present invention, and creates an order table according to the order of orders of products of various configurations from customers. The order table shows a case where the order, product name, and man-hour are included, and the control computer 1 shown in FIG. 2 determines the input order based on this order table, creates a parts list, and prints it out by the printer 21. Based on this parts list, the parts according to the parts list are prepared from the parts / board shelf in the warehouse and put into the top process. Also, write “Sequence No. 002”, “Product name Product A” and “Medium man-hour” of the products to be processed in the top process as shown in the figure from the control computer 1 via the reader / writer, for example, When manufacturing the product 23 having various parts mounted on the printed circuit board, the printed circuit board and the parts to be mounted are put into the top process from the parts / board shelf in the warehouse according to the printed parts list. In the top process, the tablet 24 in which product information is written is conveyed together with the printed circuit board and the mounted components constituting the product 23, and the parts in the top process are stored in the product case 22, and the tablet 24 is placed in the product case 22. Attach it and wait for the next process. In the next process, when the product is taken out from the product case 24 and the product is put in, the blank tablet from which the product information is erased together with the empty product case is moved to the top of the top process, and the above-mentioned top process is executed. Similar processing is executed in each subsequent process with respect to the first process.

  FIG. 6 is a schematic explanatory diagram of inter-process processing according to the first embodiment of the present invention. In the previous process and the self process, the product at the end of the previous process is stored in a product case 22 and a tablet 24 is attached. Then, it is inserted into the slot of the product buffer 11 and temporarily held. As shown in a partially enlarged perspective view, the product buffer 11 stores a reader / writer 12 for writing and erasing data to and from the tablet 24 corresponding to the slot for holding the product case 22 and a product to be input to the next process. Reader / writer for writing product information such as “Drawing No. A, man-hours” on the lamp 14 for lighting and displaying the position of the product case 22 and the blank tablet attached to the product to be input in the next process 13. The outline of the movement of the product, the tablet 24, the product case 22, and each process is as follows. (A) The product finished in the previous process is stored in the product case 22, held in the slot of the product buffer 11, and the tablet 24 holding the product information is By attaching to the product case 22, the product information of the tablet 24 can be read by the reader / writer 12, and the correspondence between the product buffer slot and the product can be recognized on the control computer side. Therefore, it is possible to select a product to be put into the next process following the previous process, and the holding slot position of the product case 22 containing the selected product on the control computer side is indicated by the lighting of the lamp 14, and the product case When taking out 22 or after instructing the lamp 14 to turn on, the tablet attached to the product case 22 is erased by the reader / writer 12 to form a blank tablet, the blank tablet 24 is moved to the tablet chute, and the product is taken out. The product case is moved to an empty case storage area for the previous process.

  (B) The product instructed to be input into the process is taken out from the product case 22, the blank tablet is taken out from the tablet chute, and is brought close to or in contact with the reader / writer 13 to write product information. In this case, the correspondence between the slot position of the product buffer 11 and the product information is read by the reader / writer 12 from the tablet 24 attached to the product case 22 when or before the product case 22 is taken out. Therefore, the product information in the product case 22 taken out from the holding slot of the designated product buffer 11 can be written on the blank tablet from the tablet chute. The empty product case from which the product has been taken out is moved to the empty case storage area for its own process, and the blank tablet is moved to the tablet chute. Within each process including its own process, the product is moved with the tablet 24 attached thereto.

  FIG. 7 is an explanatory diagram of the process end product insertion position instruction according to the first embodiment of the present invention. When the bottom of the product buffer 11 is inclined and the product case 22 containing the product is placed on one end of the product buffer 11. The case where it is configured to move to the other end side by the weight of the product case 22 is provided, and the lamp 14 and a reader / writer not shown are provided corresponding to the position of each product case 22. Under the control of the control computer 1 (see FIG. 2), the product information of the tablet 24 attached to the product case 22 is read by the reader / writer provided in the product buffer 11, and the arrangement order of the products stored in the product case 22 is When the product recorded in the information memory 5 (see FIG. 2) and returned in accordance with the order of the process is returned to the predetermined order, the processed product is stored in the product case 22 and the tablet 24 transported in the process together with the product is the product. The position to be returned to the case 22 is indicated by turning on the lamp 14 under the control of the control computer 1. Thereby, the product case 22 containing the processed product is inserted into the designated position as indicated by the dotted arrow. In this way, when the product case 22 is interrupted and inserted, the arrangement order of the products in the product buffer 11 changes. Therefore, the product information is read from the tablet 24 by the reader / writer not shown, and the slot information memory 5 Update the contents.

  FIG. 8 is an explanatory diagram of a process input product instruction according to the first embodiment of the present invention. The product buffer 11 is inclined at the bottom like the product buffer 11 described above, and the product case 22 containing the product has its own weight. Move in the direction of the arrow. A lamp 14 for indicating a product case is provided on the side wall of the product buffer 11, and a reader / writer (not shown) for reading product information of the tablet 24 attached to the product case 22 is provided. Product information is stored in the slot information memory 5 of the control computer 11 (see FIG. 2) in the order of products in the product buffer 11, and when a product to be put into the next process is determined, a lamp 14 corresponding to the current position of the product is displayed. The product case 22 is pulled out from the product buffer 11 and put into the process. Since the bottom of the product buffer 11 is inclined as described above, when the product case 22 is pulled out, the product case 22 located behind the product case 22 moves in the direction of the arrow due to its own weight, and the product in the product buffer 11 Since the arrangement order is changed, the product information is read from the tablet 24 by the reader / writer, and the contents of the slot information memory 5 are updated.

  FIG. 9 is a process explanatory diagram of the first embodiment of the present invention, in which a product 23 made of, for example, a printed circuit board and mounted electronic components taken out from the product case 22 and a tablet 24 are conveyed by a plurality of belt conveyors, Or the case where one process is complete | finished by the assembly process by incorporating several components is shown. In some cases, the product is transported by a series of belt conveyors, and assembly processing is performed in the transport process. In some cases, the final product is completed through a plurality of such processes. And tablet 24 as a set, product information can be taken over to the next step. Therefore, when different products are mixed and sequentially go through each process, the combination of man-hours and the like can be optimized.

  FIG. 10 is an explanatory diagram of a product buffer according to the second embodiment of the present invention, and is a schematic perspective view of a plurality of assembly conveyors that transport and assemble products in the direction of the arrow, and a product buffer 31 in which the product holding stage moves up and down. The product buffer 31 includes a reader / writer for reading and writing product information on a tablet (IC tag) conveyed with the product at each stage for temporarily holding the product. The product buffer 31 is managed in accordance with the vacancy and product type, the assembly finished product is transferred from the assembly conveyor of the previous process to the empty stage of the product buffer 31, and the assembly conveyor of the next process is selected according to the above-mentioned product input sequence. The product buffer 31 is raised and lowered so that the product can be delivered. In this case, a mechanism for loading and unloading the product with respect to each stage of the product buffer 31 is not shown, but the control computer 1 is provided by a worker or a mechanism such as a known rotary arm. It is also possible to adopt a configuration for controlling by.

DESCRIPTION OF SYMBOLS 1 Control computer 2 Product information reading means 3 Product information writing means 4 Lamp control means 5 Slot information memory 6 Input pattern comparison means 7 Input product instruction means 8 Input pattern memory 9 Keyboard 10 Display 11 Product buffer 12 Corresponding to slots 1 to n Reader / Writer 13 Subsequent process reader / writer 14 Slot 1-n compatible lamp 15 IC tag of own process 16 IC tag of subsequent process 21 Printer 22 Product case 23 Product 24 Tablet

Claims (5)

In a multi-product manufacturing system that sequentially manufactures multiple types of products with the same or different man-hours in multiple processes,
An IC tag capable of writing, reading and erasing product information including the man-hour of the product;
While temporarily holding each of said product between said plurality of steps, the writing of product information, have a viable reader / writer in a non-contact reading and erasing with respect to the IC tag, and put into self-process A product buffer having instruction means for indicating a holding position of the product to be
In the product buffer, and manages correspondence between the temporarily holding said product information holding position and the Products, and based on the product information of the product by selecting the product to be introduced in the next step A multi-variety manufacturing system comprising: a control computer for sequentially executing processing for controlling the instruction means for instructing a holding position of the product in the product buffer . The control computer, the depending on the reader / writer product buffers, and erasing processing of the contents of the IC tag from the post-process and returned to its own process, the IC after the contents erasure was added to the product to be introduced into the self-process Control for executing processing for writing product information of the product in the tag and processing for managing the product information and the product holding position of the product buffer and instructing the holding position of the product to be input to the next process The multi-variety manufacturing system according to claim 1 , further comprising a processing configuration . The product buffer is input to the next step under the control of the control computer and a reader / writer capable of performing contactless writing, reading and erasing of the product information with respect to the IC tag according to the holding position of the product . 2. The multi-product manufacturing system according to claim 1, further comprising a lamp of the indicating means for indicating a holding position of a product to be driven. In a multi-product manufacturing method in which a plurality of products of the same or different man-hours in a plurality of processes are mixed and sequentially manufactured,
Writing the product information including the number of steps of said product, and temporarily hold the product in the product buffer is added reading and possible IC tag erase, the product information is written into the IC tag, the product buffer a control process which reads the reader / writer manages the controlling computer in association with the product information and the product holding position of the product buffer provided in,
Including a control processing step for indicating a product holding position of the product buffer of a product to be input to a next process so that the control computer sets a process order set in advance based on the product information by the control computer. Production method. By the reader / writer of the product buffer between the plurality of processes, the contents written in the previous process of the IC tag returned to the own process from the subsequent process are erased , and the IC tag is put into the own process. The product information is added to the product, the product information of the product is written in the IC tag, the product information and the product holding position of the product buffer are managed by the control computer, and the product order is set in a predetermined order. 5. The multi-variety manufacturing method according to claim 4, further comprising a control processing step of sequentially indicating the product holding position of the buffer.

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