JPH04267472A - Parts supplying device - Google Patents

Abstract

PURPOSE:To facillitate the inventory contorl of a parts aggregate and to decrease the number of the stock of parts by reading the quantity of the parts after operation from the storing part of a parts supplying unit and writing it into a parts contorl data. CONSTITUTION:At the time of stocking storage, a bar code 6 of a parts aggregate 2 is read by a bar code reader 7 and the data are stored into a parts stock data base 12. When the bar code 6 of the parts aggregate 2 fitted at a parts cassette 4 is read by a bar code reader 8, the data of the parts name of the parts aggregate 2 and the on board, quantity of the quantity of the parts are read from the data base 12 and written into a recording part 9 of the parts cassette by a reading writing means 10. When the mounting work of the parts is completed, the bar code reader 8 and the reading writing means 10 read the number of the remaining parts or the like and the data are stored into data base 10. A parts data processor 11 controls the inventory quantity.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device for managing supplied components when supplying various electronic components to a component mounting machine or the like.

0002

2. Description of the Related Art A conventional component supply device will be explained below.

For example, when supplying electronic components to an electronic component mounting machine that mounts electronic components onto a board, a tape-shaped electronic component is used, which is made by winding a tape-shaped holder that accommodates and holds a large number of electronic components around a reel. The parts assembly is mounted on a parts cassette serving as a parts supply unit, and this parts cassette is set in the parts supply section of the electronic component mounting machine, whereby the tape-shaped electronic component assembly is formed in accordance with the mounting operation of the electronic components. The electronic components are sequentially fed out, and the electronic components are sequentially delivered to the component extraction position.

[0004] In the parts management department that stores tape-shaped electronic parts assemblies of various electronic parts, the data is manually input into the parts inventory database each time the electronic parts are received, and the data is manually inputted into parts cassettes before being sent out. The data is manually input each time the electronic components that remain after a series of mounting operations are re-stocked.

[0005]Furthermore, if parts suddenly run out while parts cassettes are set in the electronic parts mounting machine and parts are being supplied, the work of mounting the parts is interrupted and the operating rate decreases. Conventionally, in order to prevent this, the initial value of the number of parts in the tape-shaped electronic component assembly mounted in each parts cassette was manually input into the control device of the electronic component mounting machine, and the number of parts was manually input into the control device of the electronic component mounting machine. It is configured to rewrite data for each operation. Then, when a series of parts mounting operations are completed, the remaining number of each part is output, and data is input at the time of re-stocking based on that.

[0006]

[Problem to be Solved by the Invention] However, in the above-mentioned conventional configuration, data is manually input when parts are received into the parts management department and when parts are taken out and re-entered into the parts placement machine. Not only does it take a lot of effort, but input errors and omissions can occur, leading to discrepancies between the data and the actual parts, and the inventory numbers do not match.

Furthermore, since the input to the control device of the component mounting machine is performed manually, it is time consuming and erroneous input occurs.

[0008] Therefore, it is conceivable to provide a storage section in the parts cassette to store the initial number of parts loaded, and to read it by the control device when setting the parts cassette. Once the parts cassette is removed from the machine, the same problem as above will occur. Furthermore, it may be possible to have the control device rewrite the memory contents of the memory section provided in the parts cassette, but it would take time to send and receive data between the control device and the memory section, which would shorten the component mounting takt time. becomes difficult. Therefore, the parts cassette is equipped with a storage section and a means for rewriting the stored contents of the storage section according to the component removal operation, so that the current value of the number of parts loaded is always stored in the storage section without any communication with the control device. However, while it is possible to calculate only the actual number of parts to be mounted during a series of parts mounting operations, it is not possible to confirm the number of parts remaining in the component mounting machine at a given time. In addition, since it is not possible to keep track of the number of parts remaining, it becomes necessary to keep a large number of items in stock, and a storage space is required to store a large number of parts assemblies, making it difficult to manage a large number of different parts. Was.

The present invention solves the above conventional problems, and provides a parts supply device that facilitates inventory management of parts assemblies, allows necessary parts to be stocked in required quantities, and reduces the number of parts in stock. The purpose is to provide

0010

[Means for Solving the Problems] In order to achieve this object, the parts supply device of the present invention includes a means for reading out data of a plurality of parts supply units used from a parts management database, and a means for reading out data of a plurality of parts supply units to be used from a parts management database, and a data storage section of the parts supply unit. means for storing the quantity of parts after operation from the storage unit; means for writing the quantity into the parts management database; means for updating data in the parts management database; and means for storing parts by type in the parts management database. A configuration equipped with a means to calculate the total quantity of parts and a means to extract and arrange necessary parts from the calculation results, or calculate the quantity of parts by type of multiple parts supply units for multiple models from a storage unit. a means for reading the computed quantity of parts; a means for sequentially notifying the out-of-parts of a plurality of models from data on the quantity of parts read; and a means for issuing new parts for all the models in the order in which they are announced. It has a structure that includes means for transporting and waiting, and means for exchanging parts as soon as the parts in the parts supply unit are finished.

[0011]

[Operation] With this configuration, when leaving the warehouse for parts supply, the identification mark of the parts assembly attached to the parts supply device is read by the reading means, and the remaining parts of the parts assembly are checked from the parts inventory database. Data such as numbers are read out and stored in the storage means of the component supply device by the writing/reading means. When the parts supply device is set in the working machine in this state, the storage contents of the storage means are sequentially rewritten in accordance with the parts supplied, and the actual number of electronic parts at the time of work is grasped from the rewritten data.

[0012] Furthermore, when the used parts assembly is put into stock after completing the work, the memory contents of the storage section of the parts supply device and the identification mark of the parts assembly are read respectively, and the data is stored in the parts inventory database. This input is used to grasp the fractional quantity of parts mounted on the parts assembly removed from the parts supply device.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 3, a tape-shaped parts assembly (hereinafter referred to as a parts assembly) 2 wound around a reel is carried into a parts management department 1 and stored in a parts storage section 3. The parts assembly 2 is loaded into a parts cassette 4 serving as a parts supply unit. The parts cassette 4 is configured to sequentially send out each part of the parts assembly 2 to a parts take-out position by setting it in the supply section of the parts mounting machine 25 with the parts assembly 2 mounted thereon. A storage section 5 for cassettes 4 is also provided in the parts management department 1. The parts assembly 2 is attached with a barcode 6 that displays a serial number for identification, a part name, and the initial number of parts to be kept, and a barcode reader 7 is provided to read this barcode 6 when the parts are put into stock. There is. Further, a barcode reader 8 reads the barcode 6 when attaching or removing an arbitrary parts assembly 2 to the parts cassette 4;
A reading/writing means 10 for reading and writing to a recording section 9 provided in the parts cassette 4 is provided. These barcode readers 7, 8 and reading/writing means 10 are connected to a parts data processing device 11. The parts data processing device 11 is connected to a parts inventory database 12 that stores parts data of parts assemblies 2 stored in the parts management department 1 . Further, there is input means 13 for inputting commands and other data to cause the parts data processing device 11 to read data stored in the parts inventory database 12 and perform various data processing, and a display means for displaying the results. 14 are provided.

As shown in FIG. 4, the recording section 9 includes a storage section 16 that reads and writably stores the names and quantities of parts in the parts assembly 2, and a take-out detection signal that is input every time a part is taken out. A processing calculation unit 17 that subtracts 1 from the stored mounting quantity and writes the value to the storage unit 16 according to the processing calculation unit 17 and a processing calculation unit 17 that subtracts 1 from the stored mounting quantity and writes the value to the storage unit 16, and a processing calculation unit 17 that stores the stored contents of the storage unit 16. A receiving/transmitting unit 18 is provided for transmitting and receiving data to and from the reading/writing means 10 and the transmitting/receiving unit 26 provided in the component mounting machine 25.

As shown in FIG. 5, the control device of the parts mounting machine 25 controls the production model program, the part names and quantities of the parts used for that purpose, the position where each parts cassette 4 is to be set, A storage section 27 for storing data such as the time required for mounting components on a board, and a lever for controlling the operation of the component mounting machine 25 based on the program, as well as a storage section 27 for storing data such as the time required for mounting components on a board, and a storage section 27 for controlling the operation of the component mounting machine 25 based on the program, as well as for checking whether the setting position of the parts cassette 4 is correct. It is provided with a control section 28 that performs discrimination, judgment of the order of out-of-parts, etc., and transmits and receives data via a transmitting/receiving section 26, and a display section 29 that displays the determination results.

As shown in FIG. 6, the input means 13 connected to the parts data processing device 11 of the parts management department 1 is provided with a barcode reader 19. Then, there is an instruction code plate 20 in which barcodes 21 corresponding to various commands to the parts data processing device 11 are written, and barcodes 24 corresponding to each part name required for each production model.
A parts code book 22 is provided in which a large number of parts code sheets 23 in which information is written are classified and bound for each production model, and the reading and various processing of the inventory data of each part necessary for each production model can be done manually. It is configured so that it can be easily performed by simply operating the barcode 19 without having to input keys one by one.

The operation of the component supply apparatus constructed as described above will be explained below. As shown in FIG. 1, when the barcode 6 of the parts assembly 2 is read by the barcode reader 8 in step #1 based on a predetermined production model, the part name and parts of the parts assembly 2 are read in step #2. The data on the mounting quantity is read from the parts inventory database 12, and in step #3, this data is written into the storage section 16 in the recording section 9 of the parts cassette 4 by the reading/writing means 10.

Next, when all the parts cassettes 4 have been set, the process moves to step #4 to start the part mounting work based on the program input to the component mounting machine 25.

During the component mounting work, the number of components to be mounted stored in the storage section 16 is decremented by one and rewritten. If a component outage check is to be performed during this component mounting work, a component outage notice command is input to the component mounting machine 25. The control unit 28 controls each parts cassette 4 in step #5.
At the same time as reading the current value of the installed quantity of parts, in step #6, the time until each part runs out is calculated based on the used quantity per board and the time required for mounting one board. As shown in FIG. 7, it is displayed on the display section 29 in step #7. And step # if necessary
At step 8, the parts cassette 4 is replaced. Thereby, by determining the order in which each parts cassette 4 runs out of parts and replacing the parts cassettes 4 in that order, no parts run out, and a decrease in the operating rate of the component mounting machine 25 can be avoided.

Next, when the parts mounting work is completed in step #9, the parts management department 1 reads the barcode 6 of the parts assembly 2 with the barcode reader 8 in step #10, and also reads the barcode 6 of the parts cassette 4 in step #10. A reading/writing means 10 reads the component names and remaining number of components stored in the storage section 16 of the recording section 9, and stores the data in the component inventory database 12 together with the serial number of the component assembly 2.

[0022] Thereafter, in step #11, the total quantity of electronic parts by type is calculated based on the data stored in the parts inventory database 12, and the current value of the quantity in stock is grasped. In step #12, the parts data processing device 11 or a separate data processing device compares the inventory quantity with the quantity of parts required for future production planning, and determines whether the inventory quantity is below the minimum required inventory quantity. If it is determined that production is impossible, the relevant parts will be extracted and orders will be arranged.

As shown in FIG. 2, in step #13, the data on the component name and the number of components mounted in the component assembly 2 is read from the component inventory database 12, and in step #14, the reading/writing means 10 reads the data of the parts. This data is written into the storage section 16 in the recording section 9 of the cassette 4.

[0024] When all parts cassettes 4 have been set correctly and are set correctly, the process moves to step #15.
Start component mounting work.

In step #16, the control section 28 reads the current value of the number of parts loaded in each parts cassette 4, and in step #17, the quantity used per board and the quantity used for each model are calculated, and based on the data, the number of parts used is calculated. Step #18
At this time, a notice of out-of-parts for a plurality of component mounting machines 25 is given. At that time, regardless of the model, the parts cassettes 4 carrying parts assemblies 2 that are out of parts are notified in order. Step #19
Necessary parts assemblies 2 are arranged in the order of advance notice and transported to each component mounting machine 25 by the transport means 15. The parts cassette 4 to be replaced is kept on standby until it can be replaced (step #20). In step #21, it is notified that the parts cassette 4 can be replaced, and the parts cassette 4 is replaced.

As described above, according to this embodiment, when the parts assembly 2 is delivered to the parts management department 1 and stored, the barcode 6 of the parts assembly 2 is simply read and operated by the barcode reader 7. Then, the data is stored in the parts inventory database 12 via the parts data processing device 11. Each component assembly 2 is stored in a predetermined position in the component storage section 3 as it is. At this time, the accommodation position may be designated and displayed on the display means 14.

In this way, by centrally managing the current number of parts loaded in each parts assembly 2 together with its serial number, the parts assembly 2 can be removed from the parts cassette 4 after parts installation work and then reused. Even if the parts cassette 4 is installed in another parts cassette 4 when the parts cassette 4 is installed, the current value of the number of parts loaded in the parts assembly 2 can be written to the recording section 9 of the parts cassette 4, and the parts cassette 4 can be used effectively. be able to. In addition, since manual data entry work is not required at this time, parts management is easy, and highly accurate parts management can be achieved without erroneous input or omissions.

Furthermore, when inputting commands and data to the parts data processing device 11 in order to access the parts inventory database 12, the input means 13 includes a barcode reader 19, an instruction code plate 20, and a parts code book 2.
2 etc., it is effective in facilitating the input operation and preventing erroneous input.

Furthermore, in this embodiment, the current value of the number of parts loaded is rewritten by the parts cassette 4 itself every time a component is taken out, so that the parts mounting machine 2
Compared to the case where the rewriting is performed by the control unit 28 of No. 5, the time required for transmission and reception can be omitted, and the mounting tact can be shortened.

[0030]

As is clear from the above description of the embodiments, the present invention provides means for reading identification marks on parts assemblies when leaving the warehouse for parts supply or when re-entering the warehouse for supplying parts, and a parts supply device. With a configuration equipped with a means for writing or reading parts data into the storage section of the controller and a means for processing data between the part inventory database and the parts inventory database, management of supplied parts, including remaining fractional parts, can be managed manually without tedious data input. This can be done easily and with high precision without having to do any additional work, and the remaining parts mounted on the parts assembly can be used easily and efficiently.

Furthermore, by means of managing the actual number of all parts in one database, the number of inventory can be managed based on the frequency of use of the parts assembly, and production can be carried out without any problems with a minimum inventory. Furthermore, the actual number of parts in stock can be grasped instantaneously from a database, and an excellent parts supply system can be realized that can arrange necessary parts assemblies after a parts out-of-stock notice is displayed without having to keep an inventory.

[Brief explanation of the drawing]

[Fig. 1] Flowchart of parts management from quantity reading to order arrangement of a parts supply device according to an embodiment of the present invention.

[Figure 2
】Flowchart of parts management from quantity reading of the parts supply device to parts cassette replacement

[Fig. 3] Explanatory diagram showing the configuration of the parts supply device

[Fig. 4] Block diagram showing the configuration of the recording section of the parts supply device.

[Fig. 5] Block diagram showing the configuration of the control device of the component mounting machine of the component supply device.

FIG. 6 is a perspective view of an input means for a parts data processing device in a parts management department according to an embodiment of the present invention.

FIG. 7 is a display screen diagram showing the determination result of parts outage notice of the parts supply device according to an embodiment of the present invention.

[Explanation of symbols]

1 Parts management department 2 Parts assembly 4 Parts cassette 6 Barcode 7 Barcode reader 8 Barcode reader 9 Recording Department 10 Reading and writing means 11 Parts data processing device 12 Parts inventory database 13 Input means 16 Memory section 19 Barcode reader 20 Instruction code plate 23 Parts code sheet 25 Parts placement machine

Claims (2)

[Claims] 1. Means for reading data of a plurality of parts supply units to be used from a parts inventory database; means for storing the data in a storage section provided in the parts supply unit; means for reading out the quantity of parts, means for writing the quantity of parts after operation into the parts management database, means for updating data in the parts management database, and total quantity of parts by type in the parts management database. A parts supply device equipped with a means for calculating and a means for extracting and arranging necessary parts from the result of the calculation. 2. Means for calculating the quantity of parts by type of a plurality of parts supply units for each of a plurality of models from a storage unit, means for reading the quantity of parts calculated in the storage unit, A means for sequentially notifying the out-of-parts of multiple models based on quantity data, a means for transporting new parts for all the multiple models in the order announced and making them stand by, and a means for replacing the parts as soon as the parts in the parts supply unit run out. A parts supply device equipped with a means for