WO2023166785A1

WO2023166785A1 - Roll body management device

Info

Publication number: WO2023166785A1
Application number: PCT/JP2022/040102
Authority: WO
Inventors: 太郎井川; 映登伊藤; 誠人大西
Original assignee: 大王製紙株式会社
Priority date: 2022-03-01
Filing date: 2022-10-27
Publication date: 2023-09-07
Also published as: JP2023127437A; TW202336653A

Abstract

In the present invention, the positions of roll bodies, which are stored in a storage area, within the storage area are managed by use of RFID tags attached to the roll bodies. When a roll of paper (200) having an RFID tag (120) attached thereto is stored in a storage area, an identification code thereof is read by a first RFID reader (193), and the storage position thereof is stored in a database (160) in association with the identification code. When the roll of paper (200) is to be used, the roll of paper is conveyed to a predetermined placement position by a conveyance means (unmanned forklift (190) and transfer body (460)). The identification code is read by a second RFID reader (20) disposed at the placement position, and a collation unit (70) collates the identification code with the correct kind of roll body to be placed in the placement position and outputs the collation result. A determination output unit (80) generates an output indicating the propriety of the kind of the roll of paper (200) placed in the placement position in accordance with the collation result.

Description

Roll body management device

The present invention relates to a roll body management device.

Corrugated cardboard sheets are manufactured by laminating cardboard base paper ((front) liner (flat), core (corrugated), (back) liner (flat)) by a corrugating machine. The base paper for corrugated board is formed into roll paper wound into a roll. Rolled paper is set at a predetermined position of a corrugating machine when manufacturing corrugated cardboard sheets (see, for example, Patent Document 1).

When roll paper is received, it is temporarily stored in a storage area such as a warehouse. When the roll paper is to be used, it is carried out from the storage area and set in the corrugating machine. After use, if there is a remaining amount, it will be stored again in the storage area.

JP 2005-096311 A

A lot of roll paper is stored in the storage area. Conventionally, in order to find a desired roll paper among the roll paper stored in the storage area, it was necessary to specify the roll paper using an identification tag attached to the roll paper.

An object of the present invention is to provide a roll body management device that uses RFID tags attached to the roll body to manage the position of the roll body stored in the storage area within the storage area.

In order to achieve the above object, the roll body management device of the present invention provides the above-described A first RFID reader that reads an identification code specifying the roll body from an RFID tag, a storage position of the roll body in the storage area, and the identification code of the roll body read by the first RFID reader an information storage unit that stores information in association with the information storage unit; and transport means that transports the roll stored in the storage area from the storage position of the roll stored in the information storage unit to a predetermined arrangement position. , a second RFID reader that reads the identification code from the RFID tag attached to the roll arranged at the arrangement position, and acquires and acquires the correct type of the roll to be arranged at the arrangement position a collation unit that collates the correct type and the type corresponding to the identification code of the roll body at the arrangement position read by the second RFID reader, and outputs a collation result, according to the collation result and a determination output unit for outputting whether the type of roll body at the placement position is appropriate.

According to the present invention, the RFID tag attached to the roll body can be used to manage the position within the storage area of the roll body stored in the storage area.

1 is a schematic diagram illustrating a roll paper management system including a roll paper remaining amount management system and a roll paper determination device according to an embodiment of the present invention; FIG. 2 is a diagram showing roll paper to be managed by the roll paper management system of FIG. 1; FIG. 2 is a flowchart showing general operations of the roll paper management system shown in FIG. 1; It is a figure which shows an example of an RFID label (RFID tag for roll body management). FIG. 4 is a diagram showing a state in which an RFID label is attached to roll paper; It is the measurement result of the communication distance when the RFID label is attached to the roll paper. It is the measurement result of the communication distance when the RFID label is attached to the roll paper. It is a figure which shows the structure of an unmanned forklift. It is a figure which shows an example of a concrete database. 1 is a block diagram showing the configuration of a remaining amount detection device; FIG. 1 is a schematic diagram showing a part of a corrugating machine (an example of a processing apparatus) that manufactures corrugated cardboard sheets using roll paper set at a predetermined position; FIG. 1 is a block diagram showing the configuration of a roll paper determination device according to an embodiment; FIG. FIG. 10 is a diagram schematically showing a state in which the determination device is arranged close to the roll paper set at the predetermined position of the corrugating machine and the spare roll paper arranged at the standby position on the same transport path. FIG. 10 is a diagram showing an example of a monitor displaying a list of "correct" or "wrong" judgments for spare roll papers that are connected wirelessly or by wire to each judgment device and are placed at all standby positions.

An embodiment of a roll body management device according to the present invention will be described below with reference to the drawings. FIG. 1 shows a roll paper 200 residual amount management system 300 (see FIG. 9 described later) and a roll paper 200 determination device 60 (remaining amount management system for storing roll paper 200 in a storage area) according to an embodiment of the present invention. 2 is a schematic diagram showing a management system for roll paper 200 including a system 300 and a determination device 60 (also referred to as a “roll body management device”). FIG. 2 is a perspective view showing the roll paper 200 to be managed by the roll paper 200 management system shown in FIG. 1, and FIG. 3 is a flowchart showing general operations of the roll paper 200 management system shown in FIG.

The illustrated management system for roll paper 200 (an example of a roll body) includes a barcode reader 130, an RFID label issuing machine 140, a server 150 (an example of a management device), an RFID reader 180 for inventory management, and a remaining amount. A detection device 10 and a determination device 60 are provided.

The roll paper 200 is, for example, a roll of long sheet-like corrugated base paper 202 (see FIG. 2) that is used by setting it in a corrugating machine for manufacturing corrugated cardboard sheets.

As shown in FIG. 2, the roll paper 200 has a hollow cavity 201 extending in the axial direction formed by a tubular core called a paper tube at the center in the diametrical direction. are provided with cylindrical reinforcing cylinders 203 (bases). The reinforcement cylinder 203 is made of, for example, a metal material, and is used to prevent the corrugated board base paper 202 around the cavity 201 from being deformed when a support shaft of the corrugating machine 400 described later is inserted (so-called chucking). is provided.

The barcode reader 130 optically reads the barcode written on the barcode label 110, and the specifications of the cardboard base paper 202 (the thickness of the cardboard base paper 202) stored in the barcode reader 130 corresponding to the barcode , length, type of paper, etc.), and outputs the referenced specification information to the outside.

In this embodiment, when the roll paper 200 is newly received (first time) (YES in step 1 (S1) of the flowchart in FIG. 3), the barcode of the barcode label 110 attached to the roll paper 200 is read (S2 in FIG. 3), and the specification information corresponding to the barcode is output to the RFID label issuing machine 140. FIG.

The specification information of the cardboard base paper 202 corresponding to the barcode may not be stored in the barcode reader 130 itself, and may be acquired from the outside such as the server 150.

The RFID label issuing machine 140 issues an RFID label 120 (RFID tag) having an IC chip storing an identification code (ID) corresponding to the barcode input from the barcode reader 130 (S3 in FIG. 3). The RFID label 120 issued by the RFID label issuing machine 140 is attached to the incoming roll paper 200 manually by an operator or automatically by a robot. The roll paper 200 to which the RFID label 120 is attached is transferred and stored in a predetermined storage area.

It should be noted that the RFID label 120 may be issued and attached at the roll paper 200 manufacturing stage.

(RFID label)
FIG. 4 is a diagram showing an example of the RFID label 120 (RFID tag for roll body management) of the present embodiment. The RFID label 120 uses a UHF band frequency (for example, 920 MHz) to transmit and receive signals to and from an RFID reader, and transmits and receives signals by radio waves.

The RFID label 120 includes a substrate layer 121 , an inlay 124 having an antenna section 122 and an IC chip 123 , an adhesive layer 125 and a paper layer 126 .

The base layer 121 is made of an insulating resin film. Specifically, for example, a single resin film such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polypropylene (PP), polyethylene (PE), etc., or a multilayer obtained by laminating a plurality of these resin films film and the like. The base material layer 121 has a body portion 121A on which an antenna portion and an IC chip 123 are provided, and an alignment portion 121C provided at an end through a bent portion 121B.

The antenna section 122 is a planar antenna for transmitting and receiving signals, is provided on the main body section 121A of the base material layer 121, and is formed of a metal thin film. As a material of the metal thin film, for example, a sheet made of aluminum (Al) (aluminum sheet) is suitable, but not limited to this. For example, the antenna section 122 can be formed by sticking an aluminum sheet on the base layer 121 made of a PET film by dry lamination or the like. The antenna portion 122 is not arranged on the bent portion 121B and the alignment portion 121C of the base layer 121 . Therefore, the bent portion 121B is easy to bend, and does not generate a restoring force against bending of the metal, so that it is difficult to peel off.

The antenna section 122 has a rectangular shape and includes a first region 122a, a second region 122b, a third region 122c, a slot portion 122d, and a loop portion 122e. The first region 122a is a region that exists at a position near the bent portion 121B of the base material layer 121 . The second region 122b is a region that connects the first region 122a and the third region 122c and extends along the longitudinal direction. The third region 122c is shorter in longitudinal dimension than the first region 122a. The slot portion 122d extends along the second region 122b. The loop portion 122e has a pair of

arm portions

122f, 122f to which the IC chip 123 is connected, and the pair of

arm portions

122f, 122f and the IC chip 123 form an annular shape. A region other than the first region 122a extending from the first region 122a (a region connected to the IC chip 123 including the second region 122b, the third region 122c, the slot portion 122d, and the loop portion 122e) is also called a remaining region.

The IC chip 123 is electrically connected to the antenna section 122 at a pair of

arm sections

122f, 122f of the loop section 122e, and stores various information such as an identification code for specifying the roll body. Moreover, the IC chip 123 is equipped with a predetermined arithmetic processing function, etc., executes arithmetic processing based on the instructions included in the signal input from the antenna section 122 , and outputs the processing result to the antenna section 122 . The antenna unit 122 transmits a signal including the processing result input from the IC chip 123 to the RFID reader.

The adhesive layer 125 is provided on the back surface of the base layer 121 on which the antenna section and the IC chip 123 are provided. The adhesive layer 125 is protected by a release paper (not shown) before adhesion, and the release paper is peeled off to expose the adhesive layer 125 when used.

The paper layer 126 is provided on the base layer 121 from the main body portion 121A to the alignment portion 121C with the antenna portion 122 and the IC chip 123 interposed therebetween. The paper layer 126 allows characters to be printed on the RFID label 120 . In the present embodiment, identification information for identifying the roll paper 200 and the type of the roll paper 200 are printed in characters on each of the paper layer 126 positioned in the main body portion 121A and the paper layer 126 positioned in the alignment portion 121C. It is possible. Since the paper layer 126 positioned in the main body portion 121A has a large printable area, it is mainly a portion that is referred to before being attached to the roll paper 200. FIG. On the other hand, the paper layer 126 located in the alignment portion 121C has a small printable area, but as will be described later, it is mainly a portion that is referenced after being attached to the roll paper 200 (see FIG. 5). . In FIG. 4, the paper layer 126 is shown in a see-through state for convenience of illustration of the antenna section 122 and the IC chip 123. As shown in FIG.

FIG. 5 is a diagram showing a state where the RFID label 120 is attached to the roll paper 200. FIG. As shown in FIG. 5, the RFID label 120 has the bent portion 121B of the base layer 121 positioned at the boundary between the end face of the tubular core (more specifically, the end face of the reinforcing tube 203 (cap)) and the cavity 201. Then, the positioning portion 121C is attached to the end surface of the tubular core (the end surface of the reinforcing tube 203), and the main body portion 121A of the base material layer 121 is attached to the inside of the cavity 201. By attaching the RFID label 120 in this way, part of the antenna section 122 (in this example, at least part of the first region 122a) comes to be in contact with the reinforcing cylinder 203 (base), and , the IC chip 123 is not arranged on the reinforcing tube 203 (base). That is, the RFID label 120 is electrically connected to a metal reinforcing tube 203 (base), and the reinforcing tube 203 (base) is used as part of the antenna to adjust the frequency characteristics. In addition, since the reinforcing tube 203 (base) and the first region 122a of the antenna section 122 are electrically connected, even if the first region 122a is partially damaged by chucking, communication with the RFID reader is hindered. There is no Moreover, since the IC chip 123 is not arranged on the reinforcing tube 203 (base), the IC chip 123 is not damaged by chucking. Therefore, a communication error due to breakage of the IC chip 123 is less likely to occur. Furthermore, as shown in FIG. 5, since the positioning portion 121C of the RFID label 120 is attached to the end face of the tubular core (the end face of the reinforcing cylinder 203), the paper layer 126 positioned on the positioning portion 121C is printed. It is easy to see the identification information.

6A and 6B are measurement results of the communication distance when the RFID label 120 is attached to the roll paper 200. FIG. The measurement was performed using an RFID tag/label performance inspection device "Tagformance" manufactured by Voyantic. In the graphs of FIGS. 6A and 6B, the horizontal axis is frequency [MHz] and the vertical axis is communication distance (theoretical read range forward) [m]. 6A shows the results of measurement from the end surface side (mirror surface) of the roll paper 200 with the RFID label 120 attached, and FIG. 6B shows the measurement result from the side surface side (body surface) of the roll paper 200 with the RFID label 120 attached. It is the measurement result of the measurement. In both FIGS. 6A and 6B, the solid line is the measurement result when the RFID label 120 is attached to the reinforcing cylinder 203 (cap) as described above, and the broken line is a comparative example of a tubular core without a reinforcing cylinder. This is the measurement result when the RFID label 120 is attached. As shown in FIGS. 6A and 6B, by attaching the RFID label 120 of the present embodiment to the reinforcing tube 203 (base), the communication distance is extended at all the measured frequencies.

The RFID label issuing machine 140 outputs to the server 150 the identification code stored in the IC chip 123 of the issued RFID label 120 and the barcode or specification information of the cardboard base paper 202 obtained from the outside.

The server 150, which is an example of a management device, comprises a database 160 (information storage unit) and an update unit 170. The database 160 stores the identification code (ID) input from the RFID label issuing machine 140 and various information such as specification information and inventory information of the cardboard base paper 202 in association with each other. The identification code of the received roll paper 200 and the specification information are associated with each other and registered in the database 160 (S4 in FIG. 3).

(Management within the Storage Area)
In this embodiment, the roll paper 200 is transferred to the storage area by the unmanned forklift 190 shown in FIG. The unmanned forklift 190 has mapping means 191 , maps the inside of the storage area in advance, creates a storage area map, and stores it in the map information storage unit 192 . The unmanned forklift 190 also has an RFID reader 193 (first RFID reader), which is used to identify the roll paper 200 from the RFID label 120 when the roll paper 200 is transferred and stored in the storage area. The code is read, the storage position of the roll paper 200 in the storage area and the identification code of the roll paper 200 read by the RFID reader 193 are associated with each other, and output from the output unit 194 to the server 150 to update the database 160 (Fig. S5 in 3).

Note that the unmanned forklift 190 is merely an example, and the roll paper 200 may of course be transferred using another transport device such as a manned forklift. Further, the transfer device itself does not have to store the map of the storage area, and the map of the storage area may be stored in the server 150 and acquired for use. Further, the transport device itself may not have an RFID reader, and a worker who accompanies the transport device may carry a mobile RFID reader to read the RFID label 120 during storage. Also, a gate-type RFID reader may be provided at the entrance/exit of the storage area to manage the entry/exit of the roll paper 200 . In this case, it is possible to omit the RFID reader of the unmanned forklift by correlating the predetermined storage position with the identification information of the roll paper 200 and outputting it from the output unit 194 to the server 150 to update the database 160 . is.

(database)
FIG. 8 is a diagram showing an example of a specific database 160. As shown in FIG. As an example of a specific database 160, as shown in FIG. 8, paper type, first storage date, last use date, remaining amount (remaining length) as an example of specification information, and storage as an example of inventory information Areas and storage locations are associated with identification codes. Note that the specific contents of the database 160 are not limited to the example shown in FIG.

The update unit 170 rewrites the length in the specification information of the cardboard base paper 202 stored in the database 160 with the remaining amount of the cardboard base paper 202 in the roll paper 200 output from the remaining amount detection device 10 described later, or rewrites the stock information. to update the information.

Inventory information in the database 160 is updated when an RFID reader 180 for inventory management, which will be described later, reads the RFID label 120 of the roll paper 200 that is in stock in the storage area and makes an inquiry to the server 150 (S6 in FIG. 3). It is updated (S7 in FIG. 3).

(RFID reader)
An RFID reader 180 for inventory management reads from the RFID label 120 attached to each of a large number of roll papers 200 (for example, roll

papers

210, 220, . The identification code is read and collated with the database 160 of the server 150 to manage inventory information such as the presence or absence of the roll paper 200 (registration and update of the storage area in the database).

Since the RFID reader 180 can read information such as an identification code stored in the RFID label 120 without contact with the RFID label 120, it can read individual items stored in the warehouse like a barcode reader. It is not necessary to be close to the roll paper 200.

That is, the identification codes of multiple RFID labels 120 present in a certain range of space can be read almost simultaneously at once. A certain range is a range of distances that can be communicated between RFID reader 180 and RFID label 120. Within a certain range, RFID reader 180 can read information such as an identification code stored in RFID label 120. can be read contactlessly.

Note that the range to a certain extent depends on the specifications of the RFID reader 180 and the RFID label 120, the space conditions (whether it is a space partitioned by walls or an open space not partitioned by walls, It changes depending on the density of the arrangement of the roll paper 200 with the RFID label 120, etc.). Therefore, inventory management using the RFID label 120 can greatly reduce the labor required for inventory management of the roll paper 200 in the warehouse.

(conveying means)
The roll paper 200 stored in the storage area is transported to a predetermined arrangement position by transport means including an unmanned forklift 190 and a plate-shaped transport body 460 that advances along a transport path 450 shown in FIG. 12, which will be described later. .

The arrangement position refers to a set position (specifically,

predetermined positions

410, 420, and 430 in the example described later) at which the roll paper 200 is set in the corrugating machine 400 that manufactures corrugated cardboard sheets, or a waiting position in front of the set position. position (specifically, standby position 411 in the example described later). In this embodiment, since there are set positions (predetermined

positions

410, 420, 430) and a standby position (standby position 411), the roll paper 200 is first conveyed to the standby position 411, and then , 430.

When the roll paper 200 to be used is specified based on a production plan (described later) held by the server 150, the server 150 identifies the storage position of the specified roll paper 200 based on the database 160, and transports it to the unmanned forklift 190. to direct. The unmanned forklift 190 that has received the instruction unloads the roll paper 200 and carries it to the transfer body 460 . Then, it is transported to a predetermined arrangement position by the transport body 460 .

(remaining amount detector, remaining amount management system)
FIG. 9 is a block diagram showing the configuration of the remaining amount detecting device 10, and FIG. 10 is a corrugating machine 400 (processing device) for manufacturing corrugated cardboard sheets using roll paper 200 set at

predetermined positions

410, 420, and 430 (set positions). is a schematic diagram showing a part of (an example of).

The remaining amount detection device 10 includes an RFID reader 20, a sensor 30, and an output section 40, as shown in FIG. For example, as shown in FIG. 10, the remaining amount detection device 10 is provided at

predetermined positions

410, 420, and 430 at which the roll paper 200 is set in a corrugating machine 400 that unwinds the cardboard base paper 202 from the roll paper 200 to manufacture the corrugated cardboard sheet. are placed in the vicinity of The remaining amount detection device 10 is configured separately from the corrugating machine 400 .

The roll paper 200 is set at a predetermined position 410, as shown in FIG. 12, which will be described later. The roll paper 200 is placed on the transport body 460 , and the transport body 460 carrying the roll paper 200 advances along the transport path 450 to the predetermined position 410 , thereby setting the roll paper 200 at the predetermined position 410 . Setting the roll paper 200 to other

predetermined positions

420 and 430 is the same.

The range arranged near the

predetermined positions

410, 420, and 430 varies depending on the specifications of the RFID reader 20 and the RFID label 120 and the spatial conditions, as in the case of the RFID reader 180 described above. , 420 and 430 in which the RFID labels 120 of the roll paper 200 can be read.

That is, the RFID reader 20 placed near the predetermined position 410 communicates with the RFID label 120 on the roll paper 200 placed at the predetermined position 410 with the direction of the transmitted radio wave and the strength of the electric field adjusted in advance. is set so that information such as the stored identification code can be read.

With the same setting, the RFID reader 20 placed near the predetermined position 420 can read the information such as the identification code of the RFID label 120 of the roll paper 200 placed at the predetermined position 420 . The RFID reader 20 placed at the predetermined position 430 can read information such as the identification code of the RFID label 120 of the roll paper 200 placed at the predetermined position 430 .

The sensor 30 detects the remaining amount (remaining length) of the cardboard base paper 202 of the roll paper 200 placed at the predetermined position 410 in a non-contact manner. The sensor 30 detects the diameter or radius of the roll paper 200 by irradiating the roll paper 200 with laser light, for example. The sensor 30 also has a calculation unit that calculates the remaining amount of the cardboard base paper 202 based on the detected diameter or radius.

Specifically, the calculation unit of the sensor 30 calculates the remaining amount based on the detected diameter or radius and the thickness of the cardboard base paper 202 . Since the thickness of the cardboard base paper 202 is defined by the specifications of the roll paper 200, it may be stored in advance by the calculation unit, or communicated with the server 150 by the output unit 40 provided in the remaining amount detection device 10. , the specification information of the roll paper 200 stored in the database 160 of the server 150 may be obtained.

The sensor 30 may detect the remaining amount of the cardboard base paper 202 of the roll paper 200, and is not limited to detecting the diameter and radius of the roll paper 200 using laser light. Therefore, the diameter and radius of the roll paper 200 may be detected by a method other than the laser beam, or a physical quantity different from the diameter and radius of the roll paper 200 may be detected.

A physical quantity different from the diameter and radius of the roll paper 200 is detected, for example, the number of rotations per hour (rotational speed) of the cardboard base paper 202 from the roll paper 200 while the corrugating machine 400 is in operation. Since the corrugating machine 400 manufactures corrugated board sheets at a constant speed, the speed at which the roll paper 200 is unwound and the corrugated board base paper 202 is fed out is constant.

The rotational speed of the roll paper 200 rotated by feeding the cardboard base paper 202 is defined by the diameter or radius of the roll paper 200 . That is, the roll paper 200 rotates faster as its diameter or radius decreases. Therefore, by detecting the rotation speed of the roll paper 200, the sensor 30 detects the remaining amount of the cardboard base paper 202 of the roll paper 200 in relation to the constant speed for manufacturing the cardboard sheet (the delivery speed of the cardboard base paper). be able to.

It should be noted that the constant speed for manufacturing corrugated cardboard sheets (the feeding speed of the corrugated board base paper) can be obtained in advance when the corrugating machine is operated, so it is sufficient for the calculation unit of the sensor 30 to store it in advance.

The output unit 40 outputs information in which the identification code of the roll paper 200 read by the RFID reader 20 and the remaining amount of the cardboard base paper 202 detected by the sensor 30 are associated with each other.

The information that associates the identification code of the roll paper 200 and the remaining amount of the cardboard base paper 202 output from the output unit 40 is input to the server 150 (S8 in FIG. 3). The server 150 identifies the roll paper 200 corresponding to the input identification code of the roll paper 200 among the information stored in the database 160 based on the associated information, and updates the roll paper 200. The remaining amount of the specification information corresponding to the identification code 200 is rewritten to the remaining amount of the input cardboard base paper 202 (update; S9 in FIG. 3). After use, the remaining roll paper 200 is returned to the storage area by the unmanned forklift 190 .

As described in detail above, the remaining amount detection device 10 for the roll paper 200 of this embodiment is configured as follows. That is, the roll body (roll paper 200) residual amount detection device (remaining amount detection device 10) of the present embodiment is a roll body (roll An RFID reader (RFID reader 20) that reads the identification code without contact from an RFID tag (RFID label 120) that stores the identification code that identifies the roll body attached to the paper 200), and the remaining material A sensor (sensor 30) that detects the amount or amount used without contact, and the identification code read by the RFID reader is associated with the remaining amount of the material detected by the sensor, or by the RFID reader An output unit (output unit 40) that associates the read identification code with the usage amount detected by the sensor and outputs the information to a management device (server 150) that stores the remaining amount of material for each roll. and have. Then, the remaining amount detection device 10 is provided at predetermined positions (predetermined

positions

410, 420, 430) where the roll body is arranged in a processing device (corrugating machine 400) that unwinds and uses the material from the roll body. placed in the vicinity.

With this configuration, according to the remaining amount detecting device 10 of the present embodiment, the remaining amount of the cardboard base paper 202 wound on the roll paper 200 can be independently acquired. There is no need to obtain the remaining amount from 400.

Therefore, the remaining amount detection device 10 of the present embodiment can automatically acquire and manage the remaining amount of cardboard base paper in the roll paper 200 without depending on the corrugating machine 400 .

Further, since the sensor 30 in the remaining amount detection device 10 of the present embodiment detects the remaining amount without contacting the roll paper 200, the roll paper can be detected like a sensor that contacts the roll paper 200 to detect the remaining amount. There is no contact resistance to the corrugating machine 200, and the operation of the corrugating machine 400 is not affected.

Note that the sensor 30 may be in contact with the roll paper 200 . That is, if the sensor 30 is, for example, a driven roller type that contacts the cardboard base paper 202, the feed length of the cardboard base paper 202 (=peripheral length×rotation speed; use amount) can be detected.

The remaining amount detection device 10 of the present embodiment and the server 150 storing the database 160 constitute a remaining amount management system 300 (see FIG. 9) of the roll paper 200 according to an embodiment of the present invention. That is, the roll body remaining amount management system (remaining amount management system 300) of the present embodiment identifies the roll body (roll paper 200) stored in the RFID tag (RFID label 120) attached to the roll body (roll paper 200). A management device (server 150) storing a database (database 160) in which the identification code and the remaining amount of the material (cardboard base paper 202) in the roll body are associated, and the remaining amount detection device (remaining amount and a detection device 10), wherein the management device rewrites the remaining amount of the material associated with the roll body of the identification code in the database to the remaining amount input from the remaining amount detection device, or An update unit (update unit 170) is provided for rewriting the remaining amount of the material stored in the database with the remaining amount obtained by subtracting the used amount output from the remaining amount detection device from the remaining amount of the material stored in the database.

With this configuration, according to the remaining amount management system 300 of the present embodiment, the remaining amount of the cardboard base paper 202 wound on the roll paper 200 can be independently obtained. There is no need to obtain the remaining amount from the machine 400.

Therefore, the remaining amount management system 300 of the present embodiment can automatically acquire and manage the remaining amount of cardboard base paper in the roll paper 200 without depending on the corrugating machine 400, and can be used for roll paper inventory management. Labor and cost can be reduced.

The above description is for the remaining amount detecting device 10 when the roll paper 200 is set at the predetermined position 410 of the corrugating machine 400. , other remaining amount detection devices 10 have the same configuration and have the same effect.

Further, the remaining amount detecting device 10 of the present embodiment is arranged near the predetermined position 410 of the corrugating machine 400, etc. The quantity detection device is not limited to one arranged near the predetermined position 410 of the corrugating machine 400 or the like.

That is, in the roll paper residual amount detection device and the residual amount detection device of the residual amount management system according to the present invention, the sensor 30 and the RFID reader 20 are arranged near the predetermined position 410 or the like of the corrugating machine 400, and the predetermined position 410 or the like is arranged. The output unit 40 may be arranged at a position away from the sensor 30 and the RFID reader 20 and the output unit 40 may be wirelessly connected.

Further, according to the remaining amount management system 300, which is one embodiment of the present invention, which has the remaining amount detection device 10 of this embodiment and the server 150 storing the database 160, the cardboard base paper wound on the roll paper 200 202 can be independently acquired, there is no need to acquire it from the corrugating machine 400 by remodeling the corrugating machine 400 or the like.

The sensor 30 in the remaining amount detecting device 10 of the present embodiment detects the remaining amount of the cardboard base paper 202. Physical quantities detected by the sensor 30 include the radius or diameter of the roll paper 200 described above and the is not limited to the rotation speed of That is, the sensor 30 may detect the length (use amount) of the roll paper 200 to the cardboard base paper 202 used by the corrugating machine 400 .

In this case, the sensor 30 should detect the delivery length of the corrugated board 202 delivered by the corrugating machine 400 . The remaining amount (initial value) of the cardboard base paper 202 before the roll paper 200 is set at the predetermined position 410 of the corrugating machine 400 is stored in the database 160 .

Therefore, when the sensor 30 detects the usage amount of the corrugated board 202 by the corrugating machine 400, the calculation of subtracting the usage amount from the remaining amount (initial value) obtained from the database 160 results in the sensor 30 detecting the amount of the corrugated board 202. 202 remaining amount can be obtained.

If the corrugating machine 400 is equipped with a monitor that displays the amount of remaining or used amount of the cardboard base paper 202 in the roll paper 200 currently set at the predetermined position 410 and used, the monitor A camera device that captures the displayed remaining amount or usage amount and obtains an image of the remaining amount or usage amount obtained by capturing as numerical data by performing image recognition processing may be applied as the sensor 30. can. In other words, the sensor 30 may be of any type as long as it acquires the remaining amount of the cardboard base paper 202 of the roll paper 200 set at the

predetermined positions

410 , 420 , 430 . Therefore, if the corrugating machine 400 can be modified, the control device of the corrugating machine 400 can be modified to directly output the information on the remaining amount or the used amount of the roll paper 200. may be acquired and the database 160 may be updated.

(Determination device)
FIG. 11 is a block diagram showing the configuration of the roll paper determination device 60, and FIG. 12 shows the determination device 60 at a waiting position 411 on the same conveying path 450 as the roll paper 210 (200) set at a predetermined position 410 of the corrugating machine. FIG. 4 is a diagram schematically showing a state in which it is arranged near the arranged spare roll paper 220 (200).

The determination device 60 is an embodiment of a roll body determination device, and as shown in FIG. there is For example, as shown in FIG. 12, the determination device 60 is in the vicinity of the spare roll paper 220 arranged at the standby position 411 of the same transport path 450 as the roll paper 210 that is set at the predetermined position 410 of the corrugating machine and used. placed in

The roll paper 220 placed on the transfer body 460 and placed at the standby position 411 is a spare roll that is used when the remaining amount of the cardboard base paper 202 in the roll paper 210 currently used in the corrugating machine 400 runs out. Paper. When the remaining amount of the roll paper 210 set at the predetermined position 410 runs out, the roll paper 220 set at the standby position 411 is placed on the transfer body 460 along the transport path 450 to the predetermined position 410 . It advances and is set at a predetermined position 410 in place of the roll paper 210 . Then, the roll paper 220 placed at the predetermined position 410 is used for manufacturing corrugated cardboard sheets by the corrugating machine 400 .

The RFID reader 20 communicates only with the RFID label 120 of the roll paper 220 placed at the standby position 411 and reads information such as the stored identification code. , and does not read information such as an identification code stored in the RFID label 120 of the roll paper 210 .

The collation unit 70 communicates with the server 150 and acquires the correct specifications of the roll paper 200 to be placed at the predetermined position 410 (such as the paper type of the cardboard base paper 202) from the production plan of the server 150.

The production plan held by the server 150 is a production plan formulated by a production management system that manages the production of corrugated cardboard sheets by the corrugating machine 400 . The production plan includes the correct specifications of the roll paper 200 required in correspondence with the production plan for manufacturing corrugated cardboard sheets by the corrugating machine 400 .

The collation unit 70 queries the database 160 of the server 150 for the identification code stored in the RFID label 120 of the roll paper 220 at the standby position 411 read by the RFID reader 20 . Then, the collation unit 70 collates the specification information corresponding to the identification code of the roll paper 220 acquired from the database 160 with the correct specification acquired from the production plan held by the server 150, and determines whether the specification of the roll paper 220 is appropriate. is output to the determination output unit 80. In the present embodiment, the verification result of whether or not the specifications are appropriate is the verification result as to whether or not the specifications of the roll paper 220 match the correct specifications that should be set at the predetermined position 410 of the corrugating machine 400 . The specification information includes information such as the thickness and length of the cardboard base paper 202 and the type of paper, but it is not necessary to collate all of them, and it is also possible to collate only the type of information among them. is.

The determination output unit 80 is, for example, a display device, and the specification of the roll paper 220 set at the standby position 411 input from the matching unit 70 matches the correct specification to be set at the predetermined position 410 of the corrugating machine 400. The judgment is displayed (output) according to the collation result of whether or not.

Specifically, when receiving the collation result that the specification of the roll paper 220 matches the correct specification, the determination output unit 80 displays the determination "correct". On the other hand, when receiving an input indicating that the specifications of the roll paper 220 do not match the correct specifications, the judgment output unit 80 displays the judgment "wrong".

When the judgment output unit 80 displays the judgment “wrong”, the judgment output unit 80 displays the judgment “wrong” in order to notify the surrounding workers that the roll paper 220 set at the standby position 411 has the wrong specifications. ” is displayed prominently. Specifically, the judgment output unit 80 displays the display of the judgment “wrong” in a color that is easy for the operator to see, or blinks the display.

In addition, instead of making the display conspicuous, or in combination with making the display conspicuous, the determination output unit 80 may generate an alarm sound to notify the operator.

When the determination of the roll paper 220 waiting at the standby position 411 is "wrong", the determination output unit issues an instruction signal not to automatically transport the transfer body 460 from the standby position 411 to the predetermined position 410. to the transfer body 460 to keep the roll paper 220 stopped at the standby position 411 .

On the other hand, when the determination of the roll paper 220 is “positive”, the determination output unit 80 outputs the spare roll paper 220 at the standby position 411 to the predetermined position 410 when the remaining amount of the roll paper 210 at the predetermined position 410 is exhausted. outputting an instruction signal to transport 460 to allow it to be automatically transported to .

In this embodiment, the determination device 60 is arranged at the standby position 411, but in the case of an example in which there is no standby position, the determination device 60 is arranged at the set positions (predetermined

positions

410, 420, 430). Of course it is also good.

As described in detail above, the roll paper determination device 60 is configured as follows. That is, the roll body (roll paper) determination device 60 is arranged at a standby position (standby position 411) before being arranged at a predetermined position (predetermined position 410). An RFID reader (RFID reader 20) that reads the identification code stored in the RFID tag from the RFID tag (RFID label 120) of the roll body (roll paper 220) in which the base paper 202) is wound in a roll shape; obtain the correct specifications of the roll body to be placed at the position of, and collate and collate the obtained correct specifications with the specifications corresponding to the identification code of the roll body at the standby position read by the RFID reader. A collation unit (collation unit 70) that outputs a result, and a determination output unit (determination output unit 80) that outputs a determination as to whether or not the specification of the roll body at the standby position is correct according to the collation result. I have it.

With this configuration, according to the roll paper determination device 60, the roll paper 220 placed at the standby position 411 is used as a spare roll paper for the roll paper 210 placed at the predetermined position 410 and used in the corrugating machine 400. Before the roll paper 220 is actually set at the predetermined position 410, it is possible to automatically determine whether the specifications are correct for the spare roll paper.

When it is determined that the roll paper 220 has incorrect specifications, the roll paper 220 stopped at the standby position 411 is retracted from the standby position 411 by manual operation or the like, and the The roll paper 200 that conforms to the specifications can be rearranged at the standby position 411 .

As a result, the operating efficiency of the corrugating machine 400 can be improved compared to the case where the wrong specification roll paper 220 is actually placed at the predetermined position 410 and the specification error is noticed at that timing.

That is, if the wrong specification roll paper 220 is placed at the predetermined position 410 and the specification error is noticed at that timing, the roll paper 220 is withdrawn from the predetermined position 410 and the correct specification roll paper is placed at the predetermined position. Extra setup for relocating to 410 occurs. As a result, the corrugating machine 400 is stopped for a longer period of time than in the case where such unnecessary setup does not occur, and the operating efficiency of the corrugating machine 400 is reduced.

However, since the determination device 60 can determine that the roll paper 220 with the wrong specifications is at the standby position 411 before it is placed at the predetermined position 410 , the roll paper 220 at the predetermined position 410 is While the paper 210 is used and the corrugating machine 400 is in operation, the roll paper 220 with the wrong specifications can be replaced with the roll paper with the correct specifications, thereby prolonging the stop time of the corrugating machine 400. and the operating efficiency of the corrugating machine 400 is not lowered.

In addition, since the determination device 60 does not acquire from the corrugating machine 400 information on the specifications of the corrugated board base paper 202 used for manufacturing by the corrugating machine 400, there is no need to modify the corrugating machine 400.

That is, the determination device 60 can automatically determine the specifications of the cardboard base paper 202 in the roll paper 220 placed at the standby position 411 without depending on the corrugating machine 400 .

In the determination device 60, the determination output unit 80 itself outputs determination display and sound. , and the monitor may display the judgment or generate an alarm sound.

FIG. 13 shows a list of "correct" or "wrong" judgments for the spare roll paper 220 that is connected to each judging device 60 wirelessly or by wire and is placed in all the standby positions 411, 421, and 431. 9 is a diagram showing an example of a screen displayed on 90 (display device). FIG.

For example, as shown in FIG. 10, two

roll papers

200 and 200 in use are placed at a predetermined position 410, two roll paper rolls 200 and 200 in use are also placed at a predetermined position 420, and a predetermined position 430 is provided. In the corrugating machine 400 in which the two

roll papers

200, 200 in use are arranged, standby positions 411, 421, 431 corresponding to the paper rolls 200 in use at

predetermined positions

410, 420, 430, respectively. Two spare roll papers 220 are arranged in each of the positions.

Therefore, the judgment device 60 corresponding to each spare roll paper is arranged, and the judgment output unit 80 of each judgment device 60 is connected to each judgment device 60 wirelessly or by wire as shown in FIG. The monitor 90 may display a list of judgments of "correct" or "wrong" for the spare roll paper 220 (six in total) placed at all of these

standby positions

411, 421, and 431. FIG. The external monitor 90 may be connected to each determination device 60 via the server 150 . Although the external monitor 90 is separate from the determination device 60 , it may be a part of the constituent elements of the determination device 60 .

In this way, by outputting a list of determinations of a plurality of spare roll papers 220 to one monitor 90 , it is possible to collectively check the determinations of a plurality of spare roll papers 220 on one monitor 90 . This can reduce labor for confirmation compared to going around to confirm the judgment of each judgment device 60 .

Although the above description is based on the premise that the determining device 60 has a configuration different from the remaining amount detecting device 10, the determining device 60 may be incorporated into the remaining amount detecting device 10. In this case, one RFID reader 20 can be used in common as the RFID reader 20 of the determination device 60 and the RFID reader 20 of the remaining amount detection device 10 .

Although the embodiments of the present invention have been specifically described above, the present invention is not limited to these embodiments, and of course modifications can be made within the scope of the technical idea of the present invention. is.

In the roll paper 200 management system of the present embodiment, the roll paper 200 in which a long sheet-like corrugated base paper 202 is wound into a roll is applied as a roll body, and the roll paper 200 to the corrugated base paper 202 is used as a processing device. is applied to the corrugating machine 400 that is used by unwinding.

However, the management system for the roll paper 200 according to the present invention is not limited to corrugated cardboard base paper. The present invention can be applied not only to machines but also to processing apparatuses that perform processes such as manufacturing.

Cross-reference to related applications

This application claims priority based on Japanese Patent Application No. 2022-031236 filed with the Japan Patent Office on March 1, 2022, the entire disclosure of which is fully incorporated herein by reference.

Claims

A first RFID for reading an identification code for specifying the roll body from the RFID tag when the roll body, in which a long sheet-shaped material with an RFID tag is wound in a roll shape, is stored in a storage area. with the leader;
an information storage unit that associates and stores a storage position in the storage area of the roll body and the identification code of the roll body read by the first RFID reader;
a conveying means for conveying the roll stored in the storage area from the storage position of the roll stored in the information storage unit to a predetermined arrangement position;
a second RFID reader that reads the identification code from the RFID tag attached to the roll arranged at the arrangement position;
Acquiring the correct type of the roll body to be placed at the placement position, and comparing the acquired correct type with the type corresponding to the identification code of the roll body at the placement position read by the second RFID reader a matching unit that performs matching and outputs a matching result;
and a determination output unit that outputs whether the type of the roll body at the placement position is appropriate according to the collation result.
In the roll body management device according to claim 1,
further comprising mapping means for mapping the inside of the storage area in advance and creating a storage area map;
The storage location information is information indicating a location on the storage area map.
A roll body management device characterized by:
In the roll body management device according to claim 1,
The arrangement position is a set position in a processing device in which the material is unwound from the roll and used, or a standby position before the set position.
A roll body management device characterized by:
In the roll body management device according to claim 3,
The roll body is roll paper in which cardboard base paper as the material is wound into a roll,
The processing device is a corrugating machine that manufactures corrugated board sheets using the base paper for corrugated board.
A roll body management device characterized by:
In the roll body management device according to claim 1,
Further comprising a remaining amount acquisition unit that acquires the remaining amount or usage amount of the material,
The information storage unit stores the remaining amount or the used amount of the material acquired by the remaining amount acquisition unit in association with the identification code of the roll body read by the second RFID reader. and a roll body management device.