JP2006052001A - Stretch packaging system and stretch packaging method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stretch packaging system and a stretch packaging method which enable the execution of inspection and packaging of products in a collective way, and prevent packaging of a product loaded incorrectly. <P>SOLUTION: According to the system and method, an input/output management server 108 retrieves an input/output information database 110, using as a key a received shipment instruction number coming from a processor 106 with a touch panel via a network 109, to retrieve a shipment item list. A RFID reader/writer 102, operating under control by the processor 106 with the touch panel, reads product information out of RFID tags attached to articles 200 to be packaged. The processor 106 with the touch panel checks the read product information with the shipment item list retrieved by the input/output management server 108 to inspect the articles 200. A stretch packaging machine 100, operating under control by the processor 106 with the touch panel, stretch packages the article 200 using a film feeding unit 104. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a stretch wrapping system and a stretch wrapping method using a spiral stretch wrapping machine, and more particularly, to use an automatic pallet stretch wrapping machine that winds a film around a packaged article loaded on a pallet and fixes it on the pallet. The present invention relates to a stretch packaging system and a stretch packaging method.

  Generally, when a product loaded on a pallet is packaged at a distribution site, a film is wound around the package to be packaged on the pallet to prevent the collapse of the load, and the package is fixed on the pallet. Also, at the distribution site, the shipping inspection work is performed to collate the shipping instructions with the shipping slip by optically reading the bar code etc. attached to the package mixedly loaded on the pallet before packaging the product. ing.

  For example, Patent Document 1 describes a stretch packing machine that winds and packs the outer peripheral surface of the entire boxed article on the pallet with a synthetic resin film in order to prevent the collapse of the boxed article stacked on the pallet. For example, Patent Document 2 describes an inspection apparatus that reads data written on a non-contact IC label attached to an article and inspects the article using the read data.

JP 2001-171618 A (paragraphs 0006-0008, FIG. 1) JP 2004-94556 A (paragraphs 0036-0045, FIGS. 1-4)

  When inspecting and packaging a product using the stretch wrapping machine described in Patent Document 1 and the inspection device described in Patent Document 2, the packaging operation is performed after the product inspection operation has been completed with certainty. Since the inspection work and the packaging work are performed as separate work processes, the inspection work and the packaging work take time, and separate work spaces are required. In addition, when a package is mistakenly loaded and packed after the inspection is completed, there is a possibility that the wrong product is loaded and packed on the pallet.

  In recent years, RFID that can read multiple data using a radio signal or read data through a shield has attracted attention as an automatic recognition / identification means that replaces barcodes. It is possible to do it. For example, as an automatic inspection method using RFID, a gate with a plurality of antennas arranged at the upper left and right is configured, and the product is attached to the product by passing the product through a gate or a vehicle such as a forklift. It is conceivable to read data from the RFID tag.

  However, the data of all RFID tags attached to the product surface loaded on the pallet may not be surely read out by the gate due to constraints such as RFID reading directivity and readable distance. For example, since products are generally exposed and loaded in four directions on a pallet in various directions, there is a possibility that RFID tag data cannot be read depending on the product orientation and loading method. In addition, it is necessary to secure a place for configuring the gate, and a large work space must be secured for inspection work. In addition, since an operation in which the worker passes the product through the gate using a manpower or a vehicle occurs, the labor of the operator is increased.

  Accordingly, the present invention has been made to solve the above-described problems, and can perform product inspection and packaging in a lump, and can prevent the packaging of erroneously loaded packages and stretch packaging. It aims to provide a method.

  The stretch wrapping system according to the present invention is a stretch wrapping system provided with wrapping means (for example, realized by the film unwinding device 104) for stretch wrapping a package to be packaged using a stretch film, and is a product to be received and shipped. Product list management means (for example, realized by the input / output management server 108) for storing and managing product list information (for example, shipping item list) indicating the list of information, and information storage means attached to the package to be packaged ( Information reading means (for example, realized by the RFID reader / writer 102) for reading product information indicating a product included in a package to be packaged as wireless data from a product (for example, realized by an RFID tag), and product list management means Product list information stored by the product and product information read by the information reading means Inspection means (for example, realized by the processing device 106 with a touch panel) that inspects the package to be packaged by collation, and packaging control means (for example, a processing device with a touch panel) that causes the packaging means to stretch-wrap the package to be packaged 106). Note that managing the product list means, for example, generating product list information and storing it in a database, or updating the product list information stored in the database in accordance with the operation of the worker.

  The inspection means determines whether or not the product list information accumulated by the product list management means includes a product indicated by the product information read by the information reading means, and the packaging control means determines whether the inspection means uses the product list information. If it is determined that the product indicated by the product information is included, the package to be packed may be stretch-wrapped.

  The product list management means generates a product list information and receipt / shipment instruction identification information (for example, a shipment instruction number) for identifying a package receipt / shipment instruction in accordance with an instruction for product receipt / shipment. Product list storage that stores list generation means (for example, realized by the CPU of the input / output management server 108 that operates according to a program), product list information generated by the product list generation means, and receipt / shipment instruction identification information in association with each other. (For example, realized by the receipt / shipment information database 110). According to such a configuration, it is possible to perform information management collectively in association with receipt / shipment instruction identification information and product list information for each ordering instruction.

  The stretch wrapping system includes an identification information input unit (for example, realized by the processing device 106 with a touch panel) for inputting receipt / shipment instruction identification information for a package to be packaged, and a product list storage unit. Product list extracting means for extracting product list information corresponding to the input receipt / shipment instruction identification information (for example, realized by the CPU of the input / output management server 108 operating in accordance with the program), and the inspection means extracts the product list. The package to be packaged may be inspected by comparing the product list information extracted by the means with the product information read by the information reading means.

  The information reading means reads the receipt / shipment instruction identification information as wireless data from the information storage means attached to the package to be packaged, and the identification information input means inputs the receipt / shipment instruction identification information read by the information reading means. You may do. According to such a structure, the process which inputs receipt / shipment instruction identification information can be automated, and the labor of an operator can be reduced.

  The stretch wrapping system is realized by information writing means (for example, RFID reader / writer 102) that writes the product list information extracted by the product list extraction means as wireless data in the information storage means attached to the package to be packaged. May be provided. According to such a configuration, the product list information can be written in the package information storage means, so that the information can be utilized offline in the distribution process after shipment.

  The stretch wrapping system also has a table rotation control means (for example, realized by the processing device 106 with a touch panel) for rotating a rotary table on which a package to be packaged is loaded, and information reading in a direction perpendicular to the surface of the rotary table. Elevating control means (e.g., realized by a processing device 106 with a touch panel for controlling the film elevating device 105), and the information reading means is perpendicular to the surface of the rotary table by the elevating control means. The product information may be read from the information storage means attached to the package to be packaged placed on the rotary table rotated by the table rotation control means by being raised and lowered. According to such a configuration, product information can be easily read from all information storage means affixed to a package to be packaged placed on a rotary table.

  The information reading means may read data as wireless data from an RFID tag attached as an information storage means to the package to be packaged.

  A stretch wrapping method according to the present invention is a stretch wrapping method for stretch wrapping a package to be packaged using a stretch film, the step of accumulating product list information indicating a list of products to be received and shipped, and a package to be packaged. The product information indicating the product contained in the package to be packaged is read as wireless data from the attached information storage means, and the product list information to be stored is compared with the read product information to identify the package to be packaged. The method includes a step of inspecting, and a step of causing the packaging means for stretch-wrapping the package to stretch-wrap the package to be packaged.

  Further, the stretch wrapping method includes a step of storing product list information and receipt / shipment instruction identification information for identifying a receipt / shipment instruction of a package in association with each other, and an information storage unit attached to the package to be packaged, The step of reading receipt / shipment instruction identification information as wireless data, the step of extracting product list information corresponding to the read receipt / shipment instruction identification information from the accumulated product list information, and the extracted product list information and the read product information And a step of inspecting the package to be packed. According to such a configuration, information management can be performed collectively by associating receipt / shipment instruction identification information with product list information. Moreover, the process which inputs receipt / shipment instruction identification information can be automated, and labor of a worker can be reduced.

  According to the present invention, product information is read as wireless data from information storage means attached to a package to be packaged. Further, the read product information is checked against product list information stored in advance, and the product of the package to be packaged is inspected. Then, the package to be packaged is stretch-wrapped. Since the package to be packaged is inspected immediately before packaging and the inspection and packaging can be performed in a batch rather than in separate processes, it is possible to prevent packaging of erroneously loaded products. Therefore, product inspection and packaging can be performed in a lump, and packaging of erroneously loaded packages can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram showing an example of a configuration concept of a stretch wrapping system according to the present invention. As shown in FIG. 1, the stretch wrapping system includes a stretch wrapping machine 100 that stretch-wraps a load using a stretch film, and an input / output management server 108 that manages product receipt / shipment information. As shown in FIG. 1, the stretch wrapping machine 100 and the input / output management server 108 are connected via a network 109 such as an in-house LAN. 2 is a plan view of the stretch wrapping machine 100 shown in FIG. 1 as viewed from above (the X direction shown in FIG. 1) with respect to the surface of the rotary table on which the load is loaded.

  In this embodiment, the stretch wrapping machine 100 is a spiral automatic pallet stretch wrapping machine. The stretch wrapping machine 100 has an inspection function using RFID. As shown in FIGS. 1 and 2, the stretch wrapping machine 100 includes a rotary table 101, an RFID reader / writer 102, a gantry 103, a film unwinding device 104, a film lifting / lowering device 105, and a processing device 106 with a touch panel. And a network connection connector 107.

  The turntable 101 is a table on which a package including a packaged item 200 such as a product loaded on the pallet 201 is placed. In addition, the turntable 101 has a function of rotating at a predetermined rotation speed in accordance with the control of the processing device 106 with a touch panel when the article to be packaged 200 is packaged.

  The RFID reader / writer 102 has a function of reading data as a radio signal from an RFID tag attached to each package object 200. In the present embodiment, the RFID reader / writer 102 reads product information indicating the product of the package object 200 from the RFID tag. For example, the RFID reader / writer 102 reads an ID uniquely assigned to each packaged item 200 from the RFID tag as product information. Further, the RFID reader / writer 102 has a function of writing data as a wireless signal to the RFID tag of each packaged item 200 and storing the data in a memory or the like of the RFID tag.

  The gantry 103 is a support gantry that supports each component of the stretch wrapping machine 100. The film unwinding device 104 has a function of winding a stretch packaging film around the article to be packaged 200 on the turntable 101. The film lifting device 105 has a function of moving up and down along the gantry 103 according to the control of the processing device 106 with a touch panel. In the present embodiment, an RFID reader / writer 102 and a film unwinding device 104 are fixed to the film lifting device 105. The RFID reader / writer 102 and the film unwinding device 104 can be moved up and down by moving the film lifting and lowering device 105 up and down along the gantry 103 at a predetermined speed.

  The processing device 106 with a touch panel is an information processing device including an input display unit such as a touch panel. The touch panel-equipped processing device 106 operates according to a program and has a function of controlling inspection and packaging of the package object 200. Further, the processing device with a touch panel 106 has a function of inputting information according to an operation of an operator or displaying information.

  In this embodiment, the processing device with a touch panel 106 is connected to the RFID reader / writer 102 and has a function of inputting data read from the RFID tag by the RFID reader / writer 102. Further, the processing device with a touch panel 106 has a function of outputting data to be written to the RFID tag to the RFID reader / writer 102.

  In the present embodiment, the processing device with a touch panel 106 has a function of controlling the position of the RFID reader / writer 102 in order to inspect the package 200 in synchronization with the movement of the rotary table 101. In this embodiment, the RFID reader / writer 102 is installed at a position and an angle at which data can be read from and written to the RFID tag attached to each packaged article 200 loaded on the pallet 201. When inspecting the article to be packaged 200, the processing device with a touch panel 106 moves the position of the RFID reader / writer 102 up and down by moving the film lifting device 105 up and down.

  Moreover, in this Embodiment, the processing apparatus 106 with a touch panel is equipped with the function which controls the rotary table 101 and the film unwinding apparatus 104, when winding a film around the to-be-packaged object 200 using the film unwinding apparatus 104. FIG. For example, the processing apparatus 106 with a touch panel causes the film unwinding apparatus 104 to stretch-wrap the packaged article 200 by moving the film lifting / lowering apparatus 105 up and down along the gantry 103 while rotating the rotary table 101.

  Further, the processing device 106 with a touch panel has a function of transmitting / receiving data to / from the input / output management server 108 via the network 109. The network connection connector 107 is a network connection connector for connecting the stretch wrapping machine 100 to the network 109.

  In addition, the processing device with a touch panel 106 has a function of inspecting the package object 200 based on data read from the RFID tag by the RFID reader / writer 102. In the present embodiment, the processing device with a touch panel 106 receives a list of receipt / shipment products from the input / output management server 108 via the network 109. Further, the processing device 106 with a touch panel inputs the product information of the package 200 read by the RFID reader / writer 102. And the processing apparatus 106 with a touch panel inspects the to-be-packaged product 200 by collating the received list of received and shipped products with the input product information.

  Specifically, the input / output management server 108 is an information processing apparatus such as a personal computer. As shown in FIG. 1, the input / output management server 108 includes a receipt / shipment information database 110 that stores receipt / shipment information of products.

  In the present embodiment, the receipt / shipment information database 110 stores and stores, as receipt / shipment information, a shipment instruction number for identifying a shipment instruction for a product and a shipment item list that is a list of products to be shipped in association with each other. To do. In this case, the receipt / shipment information database 110 stores, as a shipment item list, a list including the ID and number of products and packages loaded and shipped in units of pallets 201. In addition, the receipt / shipment information database 110 stores a packaging time, which is a time required for packaging, in association with receipt / shipment information for a product that has undergone inspection and packaging.

  The input / output management server 108 has a function of managing receipt / shipment of products based on receipt / shipment information stored in the receipt / shipment information database 110. In the present embodiment, the input / output management server 108 generates a shipping instruction number and a shipping item list in accordance with an operator's shipping instruction operation. Further, the input / output management server 108 stores the generated shipping instruction number and the shipping item list in the receipt / shipment information database 110 in association with each other. Further, the input / output management server 108 updates receipt / shipment information stored in the receipt / shipment information database 110 according to the operation of the worker.

  In this embodiment, the input / output management server 108 generates receipt / shipment information and stores it in the receipt / shipment information database 110, or updates receipt / shipment information stored in the receipt / shipment information database 110, thereby receiving and shipping products. Centralized management.

  Further, the input / output management server 108 has a function of retrieving receipt / shipment information in the receipt / shipment information database 110 in response to a request from the processing device 106 with a touch panel built in the stretch wrapping machine 100 via the network 109. In the present embodiment, the input / output management server 108 receives the shipping instruction number from the processing device 106 with a touch panel, searches for and extracts a shipping item list corresponding to the received shipping instruction number, and touches the touch panel of the stretch wrapping machine 100. To the attached processing device 106.

  Next, the operation will be described. FIG. 3 is a flowchart showing an example of a process for inspecting and packaging the article to be packaged 200 using the stretch packaging system. In the present embodiment, a case will be described in which a product shipped in units of pallets 201 is inspected and packaged using a stretch packaging system.

  In order to inspect and package the article to be packaged 200, the worker inputs an instruction to input the shipping instruction number of the article to be packaged 200 on the pallet 201 from the touch panel of the processing device with a touch panel 106 of the stretch wrapping machine 100 (step S101). .

  The processing device 106 with a touch panel inputs a shipping instruction number in accordance with the operation of the worker. For example, the processing device with a touch panel 106 inputs a unique number assigned in advance to the product to be shipped loaded on the pallet 201 by the input / output management server 108 as the shipping instruction number. Further, the processing device with a touch panel 106 transmits the input shipping instruction number to the input / output management server 108 via the network 109 (step S102).

  The input / output management server 108 searches the receipt / shipment information database 110 using the shipment instruction number received from the processing device 106 with a touch panel as a key, and extracts a corresponding shipment item list (step S103). The input / output management server 108 transmits the extracted shipment item list to the processing device 106 with a touch panel via the network 109 (step S104). The processing device 106 with a touch panel receives the shipment item list from the input / output management server 108 via the network 109.

  When the operator performs an instruction operation to start rotation of the turntable 101 (step S105), the stretch wrapping machine 100 rotates the turntable 101 according to the control of the processing device with a touch panel 106. Further, for example, when the stretch wrapping machine 100 receives the shipment item list from the input / output management server 108, the stretch packaging machine 100 rotates the turntable 101 according to the control of the processing device 106 with a touch panel.

  The stretch wrapping machine 100 moves the RFID reader / writer 102 attached to the film lifting / lowering device 105 up and down according to the control of the processing device 106 with a touch panel. Then, the RFID reader / writer 102 reads product information from the RFID tag attached to the package 200 (step S106). In this case, the RFID reader / writer 102 reads product information from the RFID tags attached to all the packages 200 on the pallet 201.

  The processing device 106 with a touch panel of the stretch wrapping machine 100 collates the shipping item list received from the input / output management server 108 with the read product information of the RFID tag and executes an inspection process (step S107). For example, the processing device with a touch panel 106 determines whether or not the product ID of the read product number is included in the shipping item list. Further, for example, the processing device with a touch panel 106 determines whether or not the number of products of the read product number matches the number included in the shipping item list. And the processing apparatus 106 with a touch panel displays an inspection result (step S108).

  For example, if the processing device with a touch panel 106 determines that the product indicated in the product information read from the RFID tag is included in the shipping item list as a result of the inspection processing, the processing device 106 determines that the inspected product can be shipped and can be shipped. Is displayed on the display unit. Further, when the processing device with a touch panel 106 determines that the product indicated in the product information is not included in the shipping item list, the processing device 106 determines that the inspected product cannot be shipped, and displays on the display unit that the product cannot be shipped.

  When the worker confirms the inspection result displayed by the processing device with a touch panel 106 and confirms that all the shipment items are loaded on the pallet (step S109), the operator operates the touch panel to input the start of packaging (step S110). . The processing device with a touch panel 106 inputs a packaging start instruction according to the operation of the worker.

  When the packaging start instruction is input, the stretch wrapping machine 100 performs packaging of the article to be packaged 200 according to the control of the processing device with a touch panel 106 (step S111). For example, when it is determined that the product inspected by the processing device with a touch panel 106 can be shipped, the stretch wrapping machine 100 performs the packaging of the article to be packaged 200 according to the control of the processing device with a touch panel 106. In this case, the processing apparatus 106 with a touch panel measures the time from the start to the end of packaging to obtain the packaging time.

  When the packaging is completed, the processing device with a touch panel 106 transmits the shipping instruction number and the packaging processing status to the input / output management server 108 via the network 109 (step S112). In the present embodiment, the processing device with a touch panel 106 transmits the shipping instruction number and the packaging time to the input / output management server 108. When the shipping instruction number and the packaging time are received, the input / output management server 108 stores the received shipping instruction number and the packaging time in the receipt / shipment information database 110 in association with each other.

  Further, in the inspection and packaging process shown in FIG. 3, the case where the shipping instruction number is input in accordance with the input instruction of the worker in step S101 has been described. However, the RFID is attached to the pallet 201 in advance and the shipping instruction number is written. Also good. FIG. 4 is a flowchart showing another example of a process for inspecting and packaging the article to be packaged 200 using the stretch packaging system.

  The RFID reader / writer 102 of the stretch wrapping machine 100 reads the shipping instruction number from the RFID tag attached to the pallet 201 (step S201). The processing device 106 with a touch panel of the stretch wrapping machine 100 inputs a shipping instruction number from the RFID reader / writer 102. Then, the processing device with a touch panel 106 transmits the input shipping instruction number to the input / output management server 108 via the network 109 (step S202). By doing so, the process of inputting the shipping instruction number can be automated.

  The processing from step S203 to step S211 is the same as the processing from step S103 to step S111 shown in FIG.

  When the packaging in step S211 is completed, the touch panel-equipped processing device 106 causes the RFID reader / writer 102 to write the shipment item list and product information on the RFID tag attached to the pallet 201 (step S212). By doing so, the shipment item list and product information are stored in the RFID tag affixed to the pallet, and offline information utilization is possible in each logistics process after shipment.

  The touch panel-equipped processing device 106 transmits the shipping instruction number and the packaging processing status (for example, packaging time) to the input / output management server 108 via the network 109 (step S213). When the shipping instruction number and the packaging time are received, the input / output management server 108 stores the received shipping instruction number and the packaging time in the receipt / shipment information database 110 in association with each other.

  As described above, according to the present embodiment, the automatic pallet stretch wrapping machine 100 that winds a film around the article 200 to be packaged loaded on the pallet 201 and fixes the pallet 201 on the pallet 201 has an RFID reading function. The stretch wrapping machine 100 also includes product information from an RFID tag that is attached to the rotating package 200 and stores an ID unique to the package 200 immediately before stretch-wrapping the package 200 loaded on the pallet 201. Read and inspect.

  Since the inspection of the article to be packaged 200 is performed immediately before packaging using the stretch packaging machine 100, the inspection and packaging can be performed collectively. Therefore, the work space can be reduced by performing inspection and packaging in the same place. In addition, since inspection and packaging can be performed in a batch rather than in separate steps, packaging of erroneously loaded products can be prevented. Therefore, product inspection and packaging can be performed in a lump, and packaging of erroneously loaded packages can be prevented.

  In addition, according to the present embodiment, since the stretch wrapping machine 100 used for the packaging work performed when the pallet 201 is shipped has an inspection function using RFID, the inspection and packaging of the product on the pallet 201 can be performed in real time. Can do. In addition, according to the present embodiment, since inspection is performed using a pallet rotating mechanism by the rotary table 101 of the stretch wrapping machine 100, there is no need to provide a large facility such as a gate for inspection using RFID. The working space can be reduced. In addition, according to the present embodiment, since all the read product information and the shipment item list can be written in the RFID tag of the pallet 201, the shipment item information can be used offline in the distribution process after shipment. .

  INDUSTRIAL APPLICABILITY The present invention can be applied to an application for inspecting a product to be packaged and performing stretch packaging in an automatic or manual stretch packaging machine or a mobile stretch packaging machine with a fork.

It is explanatory drawing which shows an example of a structure concept of the stretch packaging system by this invention. It is the top view which looked at the stretch wrapping machine 100 shown in FIG. 1 from the upper direction with respect to the pallet surface which loads a load. It is a flowchart which shows an example of the process which inspects and packages the to-be-packaged product 200 using a stretch packaging system. It is a flowchart which shows the other example of the process which inspects and packages the to-be-packaged product 200 using a stretch packaging system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Stretch packaging machine 101 Rotary table 102 RFID reader / writer 103 Base 104 Film unwinding apparatus 105 Film raising / lowering apparatus 106 Processing apparatus with a touch panel 107 Network connection connector 108 Input / output management server 109 Network 110 Receipt / shipment information database

Claims (10)

A stretch wrapping system comprising wrapping means for stretch wrapping a package to be wrapped using a stretch film,
Product list management means for accumulating and managing product list information indicating a list of products to be received and shipped;
Information reading means for reading product information indicating products contained in the package to be packaged as wireless data from information storage means attached to the package to be packaged;
Inspection means for inspecting the package to be packaged by collating product list information stored by the product list management means with product information read by the information reading means;
A stretch wrapping system comprising: a wrapping control means for causing the wrapping means to stretch-wrap the package to be wrapped. The inspection means determines whether or not the product indicated by the product information read by the information reading means is included in the product list information accumulated by the product list management means,
The stretch packaging system according to claim 1, wherein the packaging control unit causes the packaging unit to stretch-wrap the package to be packaged when the inspection unit determines that the product list information includes the product indicated in the product information. Product list management means
Product list generation means for generating product list information and receipt / shipment instruction identification information for identifying an instruction for receipt / shipment of a package in accordance with an instruction for receipt / shipment of the product;
The stretch packaging system according to claim 1, further comprising product list storage means for storing product list information generated by the product list generation means and receipt / shipment instruction identification information in association with each other. Identification information input means for inputting receipt / shipment instruction identification information of the package to be packaged;
Product list extraction means for extracting product list information corresponding to receipt / shipment instruction identification information input by the identification information input means from a product list storage means,
The stretch packaging system according to claim 3, wherein the inspection means inspects the package to be packaged by comparing the product list information extracted by the product list extraction means with the product information read by the information reading means. The information reading means reads the receipt / shipment instruction identification information as wireless data from the information storage means attached to the package to be packaged,
The stretch packaging system according to claim 4, wherein the identification information input means inputs receipt / shipment instruction identification information read by the information reading means.   6. The stretch wrapping system according to claim 4 or 5, further comprising information writing means for writing the product list information extracted by the product list extracting means as wireless data in the information storage means attached to the package to be packaged. A table rotation control means for rotating a rotary table on which a package to be packaged is placed;
Elevating control means for elevating the information reading means in a direction perpendicular to the surface of the rotary table,
The information reading means is attached to a package to be packaged on a turntable rotated by the table rotation control means by being lifted and lowered in a direction perpendicular to the surface of the turntable by the lift control means. The product information is read from the stored information storage means. The stretch packaging system according to any one of claims 1 to 6.   The stretch wrapping system according to any one of claims 1 to 7, wherein the information reading unit reads data as wireless data from an RFID tag attached as an information storage unit to a package to be packaged. A stretch wrapping method that stretch wraps a package to be wrapped using a stretch film,
Storing product list information indicating a list of incoming and outgoing products;
Reading product information indicating products contained in the package to be packaged as wireless data from information storage means attached to the package to be packaged;
Inspecting the package to be packaged by comparing the stored product list information with the read product information;
Stretch wrapping the package to stretch wrap the package to be wrapped. Storing product list information and receipt / shipment instruction identification information for identifying an instruction for receipt / shipment of a package in association with each other;
Reading receipt / shipment instruction identification information as wireless data from information storage means attached to the package to be packaged;
Extracting product list information corresponding to the read receipt / shipment instruction identification information from the accumulated product list information;
The stretch wrapping method according to claim 9, further comprising: inspecting the package to be packaged by comparing the extracted product list information with the read product information.

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