JP4711905B2 - Parts counting apparatus and method - Google Patents

Description

  The present invention relates to an apparatus and method for counting the quantity of a plurality of parts stored in a storage body, and more particularly to an apparatus and method for counting the quantity of parts stored in a series of tapes.

  For example, an electronic component storage body as shown in FIG. 12 is mounted on a component mounter that mounts electronic components on a substrate. The component mounting machine can manufacture a product at high speed by holding in advance a large number of electronic components housed in such a housing.

  FIG. 12 is a diagram showing an overview of a tape that holds an electronic component. As shown in the figure, the electronic component 2 is housed in a series of tapes 4 wound on a reel 1.

  The tape 4 that holds the electronic component 2 is mounted on a component mounter together with the reel 1. The component mounter manufactures a product by sequentially removing the electronic component 2 from the cavity and mounting it on a substrate or the like while peeling off the film 5 attached to hold the electronic component 2 on the tape 4. .

Here, terms are defined.
Hereinafter, “product” includes intermediate products. “Tape” refers to a band-shaped member for housing components. “Cavity” refers to a recess on the surface of the tape for storing components one by one. A “reel” refers to a member for winding a tape. The “component reel” means a reel in which a tape holding a component is wound.

  In general, the component mounting machine is not a dedicated machine for manufacturing a specific product, but a general-purpose machine capable of manufacturing a plurality of types of products. Therefore, when switching from one type of product to production of a different type of product with a single component mounter, the component reel is often replaced. At this time, a component reel that has been used halfway is generated.

  When the component mounter starts manufacturing, the number of components held by the component reel to be mounted is input to the component mounter so that the component will not run out in the middle. For this input, the number of parts held by the part reel in use is required. In addition, the same quantity of parts is required for inventory for checking the parts inventory of the mounting line.

Conventionally, a component counting device 10 as shown in FIG. 13 has been proposed as a device for counting the components held by a component reel (see, for example, Patent Document 1). The component counting apparatus 10 shown in the figure detects the feed round holes of the tape and counts the detected round holes.
Japanese Utility Model Publication No. 4-73276

However, the conventional component counting apparatus has a problem that it takes time to count the components.
For example, in the conventional component counting apparatus 10 shown in FIG. 13, a component reel is mounted on one side of the shaft 11 and an empty reel is mounted on the other, and the number of feed holes vacated in the tape is counted while winding the tape. Thus, the number of parts stored in the part reel is counted. Therefore, the conventional component counting apparatus 10 requires at least the time required to wind the component reel tape while counting the number of holes and to rewind the tape to the state before counting.

  The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a component counting device that can easily count components held on a component reel in a short time.

  In order to achieve the above object, a component counting device according to the present invention is a component counting device that counts components contained in a component reel, which is a reel on which a tape for holding a component is wound. A component unit information storage means for storing component unit information in which a component code is associated with a unit weight which is a weight of a component code of one unit and a portion of the tape holding the component, and a component reel Reel individual information storage means for storing reel individual information in which a unique ID is associated with an unused weight, weight acquisition means for acquiring the weight of the component reel, and the component unit information. By referring to the reel individual information, the unused weight associated with the ID of the component reel from which the weight acquired by the weight acquisition unit is measured is acquired and acquired. The weight acquired by the weight acquisition unit by referring to the component unit information and the used weight calculation unit that calculates the difference between the unused weight and the weight of the component reel acquired by the weight acquisition unit. The unit reel is obtained by obtaining the unit weight associated with the part code of the part included in the part reel for which measurement is performed, and dividing the difference calculated by the used weight calculating unit by the obtained unit weight. There is provided a quantity calculating means for calculating the quantity of the parts included in.

  In this manner, the parts included in the part reel in use are counted from the difference between the total weight of the part reels measured in advance and the part reel in use. Therefore, there is no need to remove the wound tape from the component reel, and the components held by the component reel can be counted as they are. Therefore, it is possible to easily and quickly count the number of parts held by the component reel in use, which is necessary when replacing the component reel mounted on the component mounter or when taking inventory. Labor saving work is possible.

  In addition to the components, the components included in the component reel are counted based on the total weight of the components and the tape that holds the components. In general, a weight measuring device having a resolution capable of accurately measuring the weight of only one component is expensive. Weight measurement is cheaper than a weight measuring instrument that can accurately measure the weight of only one component by counting the components contained in the component reel based on the weight including not only the component but also the tape that holds it. It is possible to count with high accuracy using a measuring instrument.

  Further, a unique ID is assigned to each component reel. As a result, the total weight of each component reel when not in use can be registered. Therefore, the weight of the used part and the reel that holds the part can be calculated by calculating the difference between the total unused weight inherent to the part reel and the total weight in use of the part reel. In general, even the same type of reel manufactured from the same mold has variations in weight. Therefore, for example, even if the variation in the weight of the same type of reel is about 2 g, if the total weight of one component and the tape holding it is about 0.02 g, the number counted is the actual number There is a possibility that about 100 errors may occur. By using the total weight of each component reel when not in use, the used component and the weight of the tape holding the component can be accurately calculated without being affected by variations in the weight of the reel. Therefore, it is possible to accurately count the number of parts.

  Preferably, furthermore, the number of one kind of component group, the weight of the component group and the part holding the component group, and the component code of the component group are obtained, and the obtained weight is obtained. The unit weight is calculated by dividing the calculated unit weight, and the unit weight is stored in the component unit information storage unit in association with the acquired part code.

  Thus, the unit weight is calculated by measuring the weights of the plurality of parts and the tape holding the parts and dividing the measured weight by the number of parts. Thereby, even when the unit weight is close to the resolution of the weight measuring device, the unit weight can be obtained with high accuracy.

  The present invention can be realized not only as a component counting apparatus including such characteristic means, but also as a component counting method using the characteristic means included in the component counting apparatus as a step. It can also be realized as a program that causes a computer to function as characteristic means included in the counting device. Such a program can be distributed via a recording medium such as a CD-ROM (Compact Disc-Read Only Memory) or a communication network such as the Internet.

  According to the present invention, it is possible to easily and quickly count the number of parts held by a part reel that has been used halfway. Therefore, it is possible to save labor required for exchanging the component reels mounted on the component mounting machine or taking inventory.

  Hereinafter, an embodiment of a component counting device according to the present invention will be described with reference to the drawings.

  First, the configuration of a component counting device according to an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a diagram showing an outline of the configuration of a component counting system according to an embodiment of the present invention. The component counting system 100 shown in the figure includes a component reel 140, a weight measuring device 130, a barcode reader 120, and a component counting device 110.

The component reel 140 is wound with a tape holding the component.
The weight measuring device 130 is a device for measuring the weight, and the weight measuring device 130 of the present embodiment is used for measuring the weight of the component reel 140 and the weight of the reel. A specific example of the weight measuring device 130 is an electronic balance. In order to count electronic components, the weight measuring device 130 having a resolution of about 1 mg to 10 mg is desirable.

  The barcode reader 120 is a device for reading a barcode. Bar code reader 120 of this embodiment reads a bar code attached to the surface of a reel. The component counting device 110 according to the present embodiment uses information obtained from the barcode reader 120 in order to specify the component reel 140 to be counted by type.

  The component counting device 110 is a device that counts the components included in the component reel 140, and counts the number of components from the total weight of the component reel 140 acquired from the weight measuring device 130.

  FIG. 2 is a diagram showing details of the component reel 140. The component reel 140 includes a reel 142 and a tape 146.

  A barcode 144 is marked on the reel 142. In the present embodiment, a label with a barcode 144 is affixed to the surface of the reel, and information indicating the type of component held by the component reel 140 is printed on the barcode 144. The barcode 144 according to the present embodiment includes information indicating a unique ID (Identifier) that can identify an individual component reel. The barcode reader 120 is used to read the information of the barcode 144.

  The tape 146 is an example of a holding member for holding a component. The tape 146 includes a component holding portion that holds the component and an empty portion that does not hold the component. A boundary 148 indicates a boundary between the component holding portion and the empty portion.

  The empty portions are generally included at both ends of the tape 146 when not in use. In general, in the case of the unused tape 146, the component mounting machine sucks and mounts a component housed in a cavity at a certain distance from the end of the tape 146 and mounts it on the substrate. When the component reel 140 is replaced, the tape is cut leaving a certain length of the empty portion from the component suction position due to the structure of the feeder that feeds out the tape. Therefore, even in the case of the component reel 140 being used, an empty portion having the same length as that of the tape 146 when not in use is left on the tape wound around the reel.

  The component unit 160 is a total of a unit quantity of components and a tape that holds the components. In the component unit 160 of the present embodiment, the unit quantity is one. Therefore, the part holding portion can be said to be a collection of part units 160 corresponding to the number of parts held by the entire tape 146.

FIG. 3 is a block diagram showing the configuration of the component counting device according to the embodiment of the present invention.
In the component counting apparatus 110 shown in the figure, a barcode reader 120, a weight measuring device 130, an input unit 170, and an output unit 180 are connected to the outside. Further, the component counting apparatus 110 shown in the figure includes therein a component reel storage unit 402, a count history storage unit 404, a clock unit 406, a component unit registration unit 408, a reel individual code acquisition unit 410, a weight An acquisition unit 412, an individual registration unit 414, a quantity calculation unit 416, and a display control unit 418 are provided.

  Since the bar code reader 120 and the weight measuring device 130 are the same as the devices having the same reference numerals in FIG. 1, the description thereof is omitted here. The input unit 170 is an input device such as a keyboard or a mouse. The output unit 180 is a display device such as a monitor or a printer.

  The component reel storage unit 402 stores component unit information 402a that is information related to components and reel individual information 402b that is information related to individual reels.

The component unit information 402a includes at least a component type and a unit weight.
FIG. 4 is a diagram illustrating an example of the component unit information 402 a stored in the component reel storage unit 402. The component unit information 402a shown in the drawing includes a component unit code, a count amount, and a component single weight.

  The component unit code stores a code indicating the type of component. In the count amount, the number of parts measured in advance to obtain a single part weight is stored. The single unit weight stores the total weight of a predetermined number of parts and the tape holding the parts.

  In this embodiment, the predetermined quantity is one. Therefore, the component single weight of the present embodiment is the weight of the component unit 160.

  In this figure, for example, for a part whose “part unit code” is “8 mm width 0001”, the weight of “20” parts and the tape holding the part is measured in advance, and the calculated weight is used. An example of the component unit information 402a in which the component single weight which is the weight of one component and the tape holding the component is “0.023” g is shown.

  FIG. 5 is a diagram illustrating an example of the reel individual information 402 b stored in the component reel storage unit 402.

  The reel individual information 402b shown in the drawing includes an individual code, a part unit code, a rated quantity, a new article total weight, and a label.

  The individual code stores a unique ID (hereinafter simply referred to as “ID”) for each component reel. In the present embodiment, for example, the component reels are individually identified based on an ID given to each component reel at the time of arrival or acceptance at the factory.

  The component unit code stores a code indicating the type of component, and corresponds to the component unit code of the component unit information 402a.

  The rated quantity stores a rated quantity that is the quantity of parts held by an unused part reel.

The total weight of the unused part reels is stored in the new total weight.
The label stores the weight for correcting the weight of the component reel. In the present embodiment, for example, the weight of a label on which a barcode 144 indicating an individual code attached to each component reel is marked is stored.

  In this figure, for example, for a component reel whose “individual code” is “000001”, the type of component included in the component reel is a component whose “component unit code” is indicated by “8 mm width 0001”. In this example, the “quantity” is “3000”, the “total weight” is “112.29” g, and the “label” is “1.00” g.

From here, it returns to description of FIG.
The count history storage unit 404 stores count history information 404a including the counted history.

  FIG. 6 is a diagram illustrating an example of the count history information 404 a stored in the count history storage unit 404.

  The counting history information 404a shown in this figure includes an individual code, a total weight, a part quantity, and a registration date / time.

  An ID is stored in the individual code. That is, the individual code of the count history information 404a corresponds to the individual code of the reel individual information 402b.

  The total weight stores the total weight of component reels in use. The number of parts counted is stored in the part quantity. The date and time when each counting history is stored is stored in the registration date and time. In this embodiment, an example is shown in which the registration date is information in minutes, but information in seconds may be stored.

From here, it returns to description of FIG.
The clock unit 406 holds the current date and time.

  The component unit registration unit 408 stores the component unit information 402 a in the component reel storage unit 402. For example, the component unit registration unit 408 acquires a component unit code and a count amount from the input unit 170 and acquires a weight from the weight measuring device 130. Then, the component unit registration unit 408 stores the component single weight calculated by dividing the acquired weight by the count amount, the component unit code, and the count amount in the component reel storage unit 402 in association with each other.

  Here, the weight measuring device 130 measures the total weight of the count amount of components and the tape holding the components, and the component unit registration unit 408 acquires the total weight.

  For example, in the case of electronic components, the component single weight is on the order of 10 mg. Therefore, the weights of a predetermined number of parts and the tape holding the parts are measured together. Thereby, it becomes possible to measure more accurately than using the weight measuring device 130 having a resolution of about 10 mg, rather than measuring the single unit weight itself.

  The reel individual code acquisition unit 410 acquires an ID output from the barcode reader 120 that has read the barcode attached to the component reel.

  The weight acquisition unit 412 acquires the total weight of component reels in use from the weight measuring device 130.

  The individual registration unit 414 stores the reel individual information 402 b in the component reel storage unit 402. The individual registration unit 414, for example, an ID acquired from the individual code acquisition unit 410, a component unit code acquired from the input unit 170, a rated quantity, a label, and an unused component reel acquired from the weight measuring device 130 are used. The total weight is associated and stored in the component reel storage unit 402.

  When the user inputs a counting instruction to the input unit 170, the quantity calculation unit 416 acquires the ID from the reel individual code acquisition unit 410, the reel individual information 402b related to the acquired ID, and the reel individual information 402b. The number of components included in the component reel is counted based on the component unit information 402a associated with the component unit code included in the component reel and the weight of the component reel acquired by the weight acquisition unit 412. Then, the quantity calculation unit 416 stores the ID, the weight of the component reel, the component quantity calculated by itself, and the date and time acquired from the clock unit 406 in association with each other in the counting history storage unit 404.

  In order to count the parts, the quantity calculation unit 416 first subtracts the weight of the component reel acquired by the weight acquisition unit 412 from the total weight of the unused component reel included in the reel individual information 402b. Calculate the difference. Next, the quantity calculation unit 416 calculates the quantity of components included in the component reel to be counted by dividing the calculated weight difference by the component single weight included in the component unit information 402a.

  That is, the quantity calculation unit 416 corresponds to the used weight calculation unit and the quantity calculation unit of the present invention.

The display control unit 418 displays information on the output unit 180.
Thereby, the components contained in the component reel can be counted from the weight of the component reel. The operations required by the user for counting the components are simple operations such as placing the component reel on the weight measuring device 130 as it is and reading the barcode on the component reel with the barcode reader 120.

  Therefore, it is possible to easily and quickly count the number of parts held by the part reel that has been used halfway. Therefore, it is possible to save labor required for exchanging the component reels mounted on the component mounting machine.

  Further, in this embodiment, since the component reels are individually identified, it is possible to eliminate the influence on the counting due to the variation in the reel weight. Therefore, it is possible to improve the counting accuracy of parts.

  Next, with reference to FIG. 7 and FIG. 8, a process executed by the component counting apparatus 110 according to the embodiment of the present invention will be described.

  FIG. 7 is a flowchart showing an example of processing executed by the component counting device 110 according to the embodiment of the present invention at the time of component reception.

  The display control unit 418 causes the output unit 180 to display a registration screen of the reel individual information 402b based on the output of the individual registration unit 414 that has received the instruction input by the user to the input unit 170 (S301).

  The individual registration unit 414 acquires the ID read by the barcode reader 120 from the barcode on the component reel via the reel individual code acquisition unit 410 (S302).

  The individual registration unit 414 acquires a part unit code input by the user to the input unit 170 (S303). Here, the input component unit code corresponds to the type of component held by the component reel indicated by the ID acquired in S302.

  Note that the component unit code may be automatically input by reading a barcode printed thereon. This can be realized, for example, by sticking a barcode label indicating a part unit code on the surface of the reel 142 in addition to the label of the barcode 144 including information indicating ID.

  The individual registration unit 414 acquires the rated quantity that the user inputs to the input unit 170 (S304). Here, the input rated quantity is the rated quantity of the component reel indicated by the ID acquired in S301.

  The individual registration unit 414 acquires the weight of the label input by the user to the input unit 170 (S305). The weight of the label input here is an example of the weight for correcting the weight of the component reel, and is not limited to the weight of the label.

  The individual registration unit 414 acquires the total weight of the unused component reels measured by the weight measuring device 130 via the weight acquisition unit 412 (S306). Here, the acquired total weight is the total weight of the component reels indicated by the ID acquired in S301. Thus, by automatically acquiring the total weight, it is possible to save the user from entering the weight and to prevent erroneous input.

  Here, the total weight of the component reels acquired in the total weight acquisition step (S306) includes the weight of the empty portion of the tape 146 generated due to the feeder structure as described above. The weight of the component holding part of the used tape is the difference between the weight of the component tape 140 when not in use and the weight of the component tape 140 being used.

  Since the weight per part is lighter than the weight of the tape, the difference between the weight of the empty part of the tape when not in use and the weight of the empty part of the tape in use can be an error in counting the parts. Such an error in counting the parts due to the difference in the weight of the empty portion of the tape is often within an allowable range for operation.

  If this error becomes a problem, the difference in weight between the empty portion of the unused tape 140 and the empty portion of the tape 140 in use is stored as a correction value in the “label” of the reel individual information 402b. In addition, the weight obtained by adding or subtracting the difference in the weight of the empty part of the tape to the weight of the label is stored as a correction value, and the length of the empty part of the tape 140 in use is set to For example, by cutting in line with each other, it is possible to reduce the error in counting the parts caused by the difference in the weight of the empty portion of the tape.

  The individual registration unit 414 receives the reel individual information 402b in which the pieces of information acquired from the ID acquisition process (S302) to the total weight acquisition process (S306) are associated with each other according to the instruction input by the user to the input unit 170. (S307).

  The display control unit 418 updates the screen display on the output unit 180 with the newly registered component information (S308), and ends the process.

  In this way, when the component reel is received, the total weight when not in use is registered together with the ID of the component reel. Thereby, management for every component reel is attained.

  FIG. 8 is a flowchart showing an example of processing executed by the parts counting device according to the embodiment of the present invention when parts are inventoried.

  The quantity calculation unit 416 receives an instruction to start the inventory process input by the user to the input unit 170 and acquires the ID read by the barcode reader 120 from the barcode on the component reel via the reel individual code acquisition unit 410 ( S401).

  The quantity calculation unit 416 refers to the component reel storage unit 402 and acquires the reel individual information 402b in which the ID acquired in the ID acquisition process (S401) and the individual code of the reel individual information 402b are the same (S402).

  The quantity calculation unit 416 acquires component unit information 402a including the same component unit code as the component unit code included in the reel individual information 402b acquired in the reel individual information acquisition process (S402) from the component reel storage unit 402 (S403). ).

  The quantity calculation unit 416 acquires the total weight of the component reels in use measured by the weight measuring device 130 via the weight acquisition unit 412 (S404).

  The quantity calculation unit 416 uses the total weight of the unused component reels included in the reel individual information 402b acquired in the reel individual information acquisition process (S402) and the part reels in use acquired in the total weight acquisition process (S404). The difference from the total weight of is calculated. The quantity calculation unit 416 calculates the used quantity by dividing the calculated difference by the part single weight included in the part unit information 402a acquired in the part unit information acquisition process (S403). The quantity calculation unit 416 calculates the quantity of parts included in the part reel by subtracting the calculated used quantity from the rated quantity acquired in the reel individual information acquisition process (S402) (S405).

  The quantity calculation unit 416 receives an instruction input by the user to the input unit 170, acquires the current date and time from the clock unit 406, acquires the reel individual code that is the ID acquired in the ID acquisition process (S401), and the total weight. Count history information 404 a in which the total weight acquired in the process (S 404), the part quantity calculated in the quantity calculation process (S 405), and the current date and time acquired from the clock unit 406 are stored in the count history storage unit 404. (S406).

  The display control unit 418 displays the screen on the output unit 180 based on all the count history information 202a stored in the count history storage unit 202, including the count history information 202a stored in the count history storage process (S406). Update (S407).

  In this way, the number of parts is calculated based on the change in weight calculated for each part reel. Therefore, even when there is a variation in weight among reels to which the same model number is assigned, a change in weight can be calculated without being affected by the variation. Therefore, accurate counting of parts is possible.

  Furthermore, an example of a screen displayed on the output unit 180 by the component counting device 110 according to an embodiment of the present invention will be described with reference to FIGS. 9 to 11.

FIG. 9 is a diagram illustrating a display example of a screen for registering the component unit information 402a.
The component unit code included in the component unit information registration screen 500 shown in this figure is input from the input unit 170 by the user. This figure shows an example of registering part unit information related to a part whose part unit code is “8 mm width 0001”.

  In addition, when the “count amount” included in the part unit information registration screen 500 shown in FIG. 5 is input from the input unit 170 by the user, the “part unit weight” is automatically input by the part counter 110.

  After these pieces of information are input, when the user presses the registration button 502, new component unit information included in the component unit information registration screen 500 is stored in the component unit information 402 a of the component reel storage unit 402. Also, the new component unit information input by the user pressing the cancel button 504 is not stored in the component reel storage unit 200, and registration is canceled.

  By inputting from such a screen, the user can register information on a new part. In addition, the weight of the component corresponding to the count amount and the tape holding the component is automatically input from the weight measuring device 130, so that accurate and simple input is possible.

FIG. 10 is a diagram illustrating a display example of a screen for registering the reel individual information 402b.
The reel individual code included in the reel individual information registration screen 510 shown in this figure is an ID read by the barcode reader 120. The read ID is automatically input to the reel individual code. This figure shows an example of registering part information related to a part whose reel individual code is “000003”.

  Then, the “part unit code”, “rated quantity”, and “label” presented in a table format are input from the input unit 170 by the user. The “new total weight” is automatically input when the user places an unused reel on the weight measuring device 130.

  After these pieces of information are input, when the user presses the registration button 512, new component information included in the reel individual information registration screen 510 is stored in the component unit information 402b of the component reel storage unit 402. Also, new component information input by the user pressing the cancel button 514 is not stored in the component reel storage unit 402, and registration is canceled.

  By inputting from such a screen, the user can register information on a new component reel. Further, since the new total weight is automatically input from the weight measuring device 130, accurate and simple input is possible.

  FIG. 11 is a diagram illustrating an example of a screen for displaying the counting history information 404a. The counting result display screen 520 shown in this figure includes all of the counting history information 404a stored in the counting history storage unit 404 and one of the part unit information 402a and the reel individual information 402b associated with each counting history information 404a. This is an example in which a part is displayed.

  In the counting result display screen 520 shown in the figure, for example, for a component reel whose “individual code” is “000001”, the “component unit code” is “8 mm width 0001” and the “single weight” is “0. 023 ”g,“ Total new weight ”is“ 112.29 ”g,“ Label ”is“ 1.00 ”g,“ Weight ”is“ 50.69 ”g,“ Part quantity ” "322" and "registration date / time" is "July 1, 2006 14:00".

  As mentioned above, although the component counting device 110 which concerns on one embodiment of this invention was demonstrated, this invention is not limited to this embodiment.

  For example, in each of the embodiments, the example in which the component is stored in the component reel has been described. However, the component storage body is not limited to the tape wound around the reel. For example, even when the components are stored in the tray, the components held in the tray can be similarly counted from the weight of the tray holding the components.

  Further, for example, on the count result display screen 520, the part quantity totaled for each part unit code together with each piece of the counting history information 404a as shown in FIG. 11 and part of the part unit information 402a and the reel individual information 402b associated therewith. A portion for displaying may be included. For example, it is useful when a quantity for each type of parts included in a part reel in use is required, such as during inventory.

  The present invention can be applied to an apparatus that counts components stored in a storage body, and in particular, can be applied to an apparatus that counts components contained in a component supply component reel mounted on a component mounter.

It is a figure which shows the outline | summary of a structure of the components counting system which concerns on one embodiment of this invention. It is a figure which shows the detail of a component reel. It is a block diagram which shows the structure of the components counting device which concerns on one embodiment of this invention. It is a figure which shows an example of the component unit information which the component reel memory | storage part has memorize | stored. It is a figure which shows an example of the reel individual information which the components reel memory | storage part has memorize | stored. It is a figure which shows an example of the count history information which the count history memory | storage part has memorize | stored. It is a flowchart which shows an example of the process which the components counting device which concerns on one embodiment of this invention performs at the time of components reception. It is a flowchart which shows an example of the process which the components counting device which concerns on one embodiment of this invention performs at the time of the inventory of components. It is a figure which shows the example of a display of the screen for registering component unit information. It is a figure which shows the example of a display of the screen for registering reel individual information. It is a figure which shows an example of the screen for displaying count log information. It is a figure which shows the external appearance of the tape holding an electronic component. It is a figure which shows the external appearance of the conventional component counting apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Parts counting system 110 Parts counting device 120 Bar code reader 130 Weight measuring device 140 Parts reel 142 Reel 144 Label 146 Parts holding tape 148 Boundary between empty part of tape and parts holding part 150 Empty part of tape 160 Parts unit 170 Input part 180 Output unit 402 Component reel storage unit 404 Count history storage unit 406 Clock unit 408 Component unit registration unit 410 Individual code acquisition unit 412 Weight acquisition unit 414 Individual registration unit 416 Quantity calculation unit 418 Display control unit

Claims (7)

A component counting device for counting components included in a component reel, which is a reel on which a tape for holding a component is wound,
Component unit information storage means for storing component unit information in which a component code indicating the type of component, a unit weight that is the weight of a component of one unit, and a portion of the tape that holds the component are associated with each other When,
Reel individual information storage means for storing reel individual information in which a unique ID for each component reel is associated with an unused weight,
Weight acquisition means for acquiring the weight of the component reel;
The unused weight associated with the ID of the component reel from which the weight acquired by the weight acquisition unit is measured is obtained by referring to the reel individual information, and the acquired unused weight Used weight calculating means for calculating a difference from the weight of the component reel acquired by the weight acquiring means;
By referring to the component unit information, the unit weight associated with the component code of the component included in the component reel where the weight acquired by the weight acquisition unit is measured is acquired, and the acquired unit weight is A component counting apparatus comprising: a quantity calculating unit that calculates the number of parts included in the component reel by dividing the difference calculated by the used weight calculating unit. Furthermore, it comprises reel individual code acquisition means for acquiring the ID of the component reel from which the weight acquired by the weight acquisition means is measured,
The reel individual information storage means further stores the reel individual information in which component codes of components included in a component reel are associated with each other.
The used weight acquisition means acquires the unused weight associated with the ID acquired by the reel individual code acquisition means by referring to the reel individual information,
The quantity calculation means acquires the part code associated with the ID acquired by the reel individual code acquisition means by referring to the reel individual information, and acquires by referring to the part unit information. The component counting apparatus according to claim 1, wherein the unit weight associated with the component code is acquired. Furthermore, the number of parts of one kind, the weight of the part group and the tape holding the parts group, and the part code of the parts group are obtained, and the obtained weight is the number obtained. The unit unit registration means for calculating the unit weight by dividing and storing the calculated unit weight in the part unit information storage means in association with the acquired part code. The component counting apparatus according to claim 1 or 2. Further, the ID acquired by the reel individual code acquisition means for acquiring the ID of the component reel for which the weight acquired by the weight acquisition means is measured, and the component reel to which the ID acquired by the weight acquisition means is assigned. An individual registration unit that acquires the weight when not used and stores the acquired ID and the acquired weight in association with each other in the reel individual information storage unit. Item counting device of Claim 2 or Claim 3. A component counting method for counting components included in a component reel, which is a reel on which a tape for holding a component is wound,
A weight acquisition step of acquiring a weight of the component reel;
Component unit information storage means for storing component unit information in which a component code indicating the type of component, a unit weight that is the weight of a component of one unit, and a portion of the tape that holds the component are associated with each other To obtain the unused weight associated with the ID of the component reel from which the weight obtained in the weight obtaining step was measured, and the obtained unused weight and the weight A used weight calculating step of calculating a difference from the weight of the component reel acquired by the acquiring means;
By referring to the component unit information, the unit weight associated with the component code of the component included in the component reel for which the weight acquired in the weight acquisition step is measured is set to a unique ID for each component reel. The reel individual information storage means storing reel individual information associated with the unused weight is obtained by reference, and the difference calculated in the used weight calculation step is divided by the acquired unit weight. And a quantity calculating step for calculating the quantity of parts contained in the parts reel. Furthermore, the difference between the weight of the empty tape that does not hold the parts contained in the tape wound on the unused parts reel and the weight of the empty part contained in the tape wound on the parts reel to be counted is calculated. The component counting method according to claim 5, further comprising a correction receiving step for receiving the correction value. A component counting program for counting components included in a component reel, which is a reel on which a tape for holding a component is wound,
A weight acquisition step of acquiring a weight of the component reel;
Component unit information storage means for storing component unit information in which a component code indicating the type of component, a unit weight that is the weight of a component of one unit, and a portion of the tape that holds the component are associated with each other To obtain the unused weight associated with the ID of the component reel from which the weight obtained in the weight obtaining step was measured, and the obtained unused weight and the weight A used weight calculating step of calculating a difference from the weight of the component reel acquired by the acquiring means;
By referring to the component unit information, the unit weight associated with the component code of the component included in the component reel for which the weight acquired in the weight acquisition step is measured is set to a unique ID for each component reel. The reel individual information storage means storing reel individual information associated with the unused weight is obtained by reference, and the difference calculated in the used weight calculation step is divided by the acquired unit weight. In this way, the computer executes a quantity calculation step for calculating the quantity of parts included in the parts reel.

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