JP3829580B2 - Packaging apparatus, film usage detection system therefor, and film roll inventory management system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging device, and more particularly to a packaging device for packaging a product with a sheet-like film drawn from a film roll set in a film supply unit, a film usage detection system and a film roll inventory management system in these packaging devices.
[0002]
[Prior art]
Traditionally, stock management and ordering work for stretch films used in stretch wrapping machines is performed daily when the person in charge checks the number of film rolls in stock at any time, and the number of stocks falls below a predetermined number (order points). The present situation is that a required number of film rolls are ordered in consideration of the amount used.
[0003]
[Problems to be solved by the invention]
However, if the number of film rolls in stock becomes “0”, the film order cannot be supplied and the packaging operation may be interrupted. Therefore, it is safer that the order number is larger. However, if the number of orders is too large, it is difficult to store and manage, and depending on the storage state, there is a problem of film deterioration. Therefore, the burden on the person in charge is heavy to perform appropriate inventory management.
In addition, in order to carry out proper inventory management, it is necessary to check and grasp not only the film usage record of each packaging machine, but also the remaining amount of film currently set and used in each packaging machine. When using a packaging machine, or when using many kinds of films, these operations are very complicated and troublesome.
[0004]
In view of the above-described conventional circumstances, the present invention is a packaging device that eliminates the disadvantages and makes it possible to carry out inventory management and ordering work of films to be used very simply and appropriately, a film usage detection system in these packaging devices, and An object is to provide an inventory management system for film rolls.
[0005]
[Means for Solving the Problems]
  Such a packaging device of the present invention is a packaging device for packaging products with a sheet-like film drawn from a film roll set in a film supply unit.Combines the cumulative number of used film rolls and the cumulative amount of film rolls currently in use.Means are provided for detecting and storing the cumulative amount of film used (claim 1).
  According to the present invention, it is possible to easily and accurately check and grasp the amount of film used and the amount of inventory.
[0006]
  And the aspect which calculates the usage-amount of the film roll currently in use is made to calculate based on the classification and quantity of the packaged product or the type and quantity of the tray used for the packaged product (claim).2) Or the total film length cut for packaging (claims)3).
  In addition, the cumulative number of used film rolls is added each time the end of the used film roll or the installation of a new film roll is detected.4In that case, when adding the cumulative number of film rolls, it is determined whether or not the detection is appropriate based on the usage amount of the film roll, and if it is determined that it is not appropriate, an alarm is given to that effect. It is preferable to do so (claims)5).
  According to the present invention, the amount of used film rolls and the cumulative number of used film rolls can be accurately calculated.
[0007]
  The cumulative usage amount of the film is calculated based on the number of rotations of a roller provided in the film transfer path and rotated by the film transfer operation.6) Therefore, it is easy and accurate to check and grasp the amount of film used and the amount of inventory, taking into account the amount of film used that does not actually wrap the product, such as invalid film generated when setting the film roll. Can do.
  Further, the cumulative usage amount of the film is detected and stored for each type of film to be used.7Therefore, even when the packaging device uses a plurality of types of films, it is possible to easily and accurately check and grasp the amount of film used and the amount of inventory for each film type.
[0008]
  On the other hand, the film usage detection system of the present invention comprises a management device and a plurality of packaging devices connected to the management device.Combines the cumulative number of used film rolls and the cumulative amount of film rolls currently in use.Means for detecting the cumulative amount of film used, and the management device is provided for each packaging device.SaidA totaling means for totalizing the cumulative amount of film used is provided (claims)8The film roll is provided with inventory management means for performing inventory management of the film roll based on the accumulated film accumulated usage amount and performing automatic ordering processing when the inventory quantity becomes a predetermined amount or less. The inventory management systemTen).
  In each of the above systems, at least one of the plurality of packaging devices is preferably configured as a parent device in which the management device is integrated in terms of cost and arrangement space (claims).9, 11).
  According to such a film usage detection system and an inventory management system, even when a plurality of packaging apparatuses are used, appropriate measures can be taken.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described. FIG. 1 shows an outline of a stretch wrapping machine A exemplified as a wrapping apparatus. The stretch wrapping machine A is installed and used in a backyard of a supermarket or a retail store. A product such as food (packaged item) is packaged with a stretch film, and is a conventionally known weighing and packaging pricing device.
[0010]
That is, in the stretch wrapping machine A, a product placement unit 12 for placing a product G ′ that is an article to be packaged is disposed in front of the machine casing 15, and the product G ′ placed on the product placement unit 12 is pushed by a pusher conveyor. 1 to the elevator 2 provided inside the machine frame. The product G ′ is a tray G that is a container.₁The product placing unit 12 is configured as a weighing pan of the weighing unit 13.
A wrapping section 3 is provided above the elevator 2, and a film roll placement section 4 and a film roll set in the film roll placement section 4 on the side of the wrapping section 3 (in a direction perpendicular to the pusher conveyor). 5 is provided with a film holding portion (not shown) for holding the leading end of the film 5 ′ fed out from the film 5, and the film feed for holding the leading end of the film 5 ′ held by the film holding portion and transporting it to the drawer packaging unit 3 A mechanism 7 is arranged close to the tip of the film holding part.
[0011]
Further, a cutter (not shown) that cuts the film 5 ′ held and pulled out by the film feed mechanism 7 into a predetermined length is disposed between the film holding unit and the film feed mechanism 7. 7, left and right folding plates 9 and 9 ′, a rear folding plate 10, a discharge pusher 11, and a front folding roller 14 are disposed.
In the figure, reference numeral 20 denotes a display operation unit, reference numeral 21 denotes a product width detection sensor composed of a reflective optical sensor movable in the width direction of the product G ′, reference numeral 22 denotes a product height detection sensor, and reference numeral 23 denotes a product length. Reference numeral 24 denotes a label printing applicator.
[0012]
In the stretch wrapping machine, the product G ′ conveyed on the elevator 2 is pushed up against the film 5 ′ stretched on the packaging part 3 by the lift of the elevator 2 and covers the upper surface of the product G ′. The ends of 'are folded on the bottom side of the product by the left and right folding plates 9, 9' and the rear folding plate 10.
Next, the product G ′ is folded horizontally onto the bottom surface of the product G ′ by the front folding roller 14 while the product G ′ is horizontally pushed toward the carry-out portion 16 by the discharge pusher 11, and the product G is packaged. Is obtained. After that, the product G pushed to the carry-out section 16 is transferred to the discharge conveyor 17 from the carry-out section 16 after being attached with a predetermined label on the upper surface thereof by the label printing applicator 24 and installed in the conveyor 17. The film portion folded at the bottom is heat sealed by the heater.
[0013]
An electrical configuration diagram of the stretch wrapping machine A is shown in FIG. In general, a CPU (central processing unit) that controls the packaging machine A and a CPU that controls the label printing applicator 24 are used separately, but for the sake of convenience of explanation, a single CPU 100 is used. Show.
The CPU 100 uses a 32-bit microcomputer, and executes a control program stored in the ROM 102 connected via the bus 101 to measure, package, and price the stretch wrapping machine A. The various processes are performed.
The RAM 103 includes a working area such as a register and a flag used when the CPU 100 executes the control program of the ROM 103, a preset data file (product file) input in advance for each product, a performance data file for storing various performance data, and the like. I have.
[0014]
The display operation unit 20 integrally includes a display unit 20a configured by a dot-type liquid crystal display and an operation unit 20b configured by a keyboard and a touch panel. The display unit 20a includes input data, weighing data, Various data such as calculation data and stored data, and various displays such as error display, guide display and status display are performed, and the operation unit 20b inputs input data and various commands.
The weighing unit 13 detects the weight of the product G ′ placed on the product placing unit 12 and supplies the weighing data to the CPU 100.
The label printing applicator 24 issues a label on which a product name, unit price, weight, price, etc. are printed, and automatically affixes it to the packaged corresponding product G.
[0015]
The communication unit 104 is an interface unit for communicating with the external device 110 to transmit / receive data.
The mechanism control unit 105 controls each operation unit of the packaging machine A, for example, the drive motor 2M of the elevator 2, the drive motor 7M of the film feed mechanism 7, and the like based on a command from the CPU 100.
The size detection unit 106 detects the size (width, height, length) of the product G ′ before packaging by the operation of the detection sensors 21, 22, 23 of the packaging machine A, and the detected data is sent to the CPU 100. Supplied.
[0016]
The RAM 103 will be described in further detail. The RAM 103 stores a known product file (PLU file), a performance file, a tray file, and the like.
In the product file, for example, various data such as product name and unit price, print format and other data for label printing are stored corresponding to the product number of the product G.
The actual result file stores, for example, the processed number, weight, accumulated value of the price, accumulated value of the number of issued labels, etc. corresponding to the item number of the item G.
In the tray file, as illustrated in FIG. 3, for each tray type, a tray size (L, W, H), a film length F, a tray weight (tare amount) G₁w is remembered.
[0017]
Further, the RAM 103 includes a film roll type register UF, in which the type of the film roll 5 set in the film roll placement unit 4 of the packaging machine A, for example, film material (vinyl chloride, polyethylene, polyolefin) Etc.), film width, etc. are stored.
The input to the register UF is performed by operating the operation unit 20b when the film roll 5 is set, and if the input operation is not performed, the previously stored data is valid, or A film type sensor may be provided for automatic input.
Further, a film type table is stored in the RAM 103 or the ROM 102, and a film length is stored for each type of the film roll.
[0018]
In the RAM 103, the cumulative number (FR) of used film rolls, which is the gist of the present invention, and the film usage (FL) of the film roll 5 currently set in the film roll placement unit 4 are stored for each film roll type. To be remembered.
First, the processing operation for detecting and storing the film usage (FL) of the currently used film roll will be described with reference to the flowchart of FIG.
[0019]
(Step 10)
The product number of the product G ′ to be carried into the packaging machine A is input, and product data such as product name, unit price, and effective date is read from the product file.
(Step 11)
The operator places the product G ′ on the product placement unit (weighing pan) 12.
(Step 12)
The product G ′ is weighed by the weighing unit 13.
(Step 13)
The product G ′ that has been weighed is carried onto the elevator 2 by the pusher conveyor 1.
(Step 14)
In the middle of carrying in, the size of the product (tray) is detected by the detection sensors 21, 22, 23 to detect the width W, height H, and length L.
[0020]
(Step 15)
Based on the detected size (W, H, L) data, the tray type is determined from the tray file described above. When this tray type is determined, film length F and tray weight G₁w is read from the tray file.
(Step 16)
The read film length F is added to the film usage (FL: accumulated value) so far stored in the RAM 103. That is, the film length read in step 15 is set to FL.₀Then, the film usage of RAM103 is FL + FL₀The accumulated value is stored as a new film usage (FL).
(Step 17)
The product G ′ is packaged with the film 5 ′ by the packaging operation of the packaging machine A described above.
(Step 18)
A label printed with predetermined product data is issued by the label printing applicator 24 and automatically attached to the packaged product G.
Then, while packaging the same product, the processing of step 11 and subsequent steps is repeated. When packaging other products, the processing of step 10 and subsequent steps is performed, and the processing is stopped when packaging of all products is completed.
[0021]
In the above description, the product size (W, H, L) is detected by the detection sensor, the tray type is determined, and the film length is read. The product name, unit price for each product number is previously stored in the product file described above. It is also possible to store the tray type to be used together with the above, and to determine the tray type and read the film length when the product number is input.
According to the film storage amount (FL) detection and storage process, the film length for wrapping one commodity G ′, that is, the length of the film 5 ′ drawn from the film roll 5 and cut by the cutter is accumulated. Thus, the film usage of the film roll currently in use is detected and stored.
[0022]
And since the film full length of the said film roll is known by the kind of film roll, the film remaining amount of a film roll can be judged from a film usage-amount. For example, if a film roll having a total length of 100 m is used and the current film usage (FL) is 80 m, it can be determined that the remaining film amount is about 20 m.
Of course, there is wasteful use of the film due to film unwinding and packaging mistakes when setting the film, and there is also an error in the total length of the film roll. It will be.
In addition, when there are a plurality of types of film to be used and a plurality of film rolls are used, the amount of film used is of course calculated and stored for each film type. In the above example, one film roll 5 is set in the film roll arrangement unit 4 and the film type is stored in advance, so that it is added as the film usage of this film type.
[0023]
Next, the processing operation for detecting and storing the cumulative number (FR) of used film rolls will be described based on the flowchart of FIG.
This process is to add 1 to the cumulative number (FR) of used film rolls in the RAM 103 when the film 5 'of the packaging machine A is finished and a new film roll 5 is set. When the film feed mechanism 7 is set, pay attention to the fact that the film feed mechanism 7 always feeds the film and starts when the film feed operation is performed.
[0024]
(Step 20)
It is checked whether or not the film end is detected before the film feeding operation. When the film end is not detected, it is determined that the film is simply fed out for recovery due to a packaging error operation.
(Step 21)
It is confirmed whether or not a cover (not shown) on the inlet side of the film feed mechanism 7 has been opened and closed immediately before. This utilizes the fact that the cover opening / closing operation is always accompanied when the film roll is replaced.
If the determination in the previous step 20 is “YES” and the determination in this step is “NO”, a malfunction of the sensor that detects the film end is considered, and the process is terminated.
(Step 22)
Based on the stored film usage (FL), it is determined whether or not it is appropriate to add the cumulative number of film rolls. That is, it is confirmed whether or not the stored film usage (FL) is substantially equal to the total film length RL of the film roll used so far, that is, whether or not the film of the film roll is finished.
Ideally, FL = RL, but since there is an error as described above, in practice, the determination is made with | RL−FL | ≦ ΔL. ΔL is an allowable range of error.
[0025]
(Step 23)
If the determination in the previous step 22 is “YES”, it is determined that a new film roll has been set, that is, the film roll has been replaced, and the accumulated used film rolls stored in the RAM 103 so far are accumulated. 1 is added to the number (FR: cumulative value).
(Step 24)
Since a new film roll is set, the stored film usage (FL) is reset to “0”.
[0026]
(Step 25)
If the determination in step 22 is “NO”, an accurate determination as to whether or not a new film roll has been set cannot be made. For example, a confirmation screen as to whether or not a new film roll has been set, that is, YES and NO are displayed on the display unit 20a to request the operator to input.
(Step 26)
Check operator input. If the input is YES, that is, if a new film roll is set, the cumulative number (FR) of film rolls is counted up in step 23, and if NO, the process is terminated.
[0027]
In addition, in the above-described processing for detecting and storing the cumulative number of used film rolls (FR), when there are a plurality of types of films to be used and a plurality of film rolls are used, a cumulative value is calculated for each film type. Of course to remember.
Thus, by performing the two detection and storage processes described above, the RAM 103 of the packaging machine A stores the cumulative number (FR) of film rolls used in the packaging machine A and the film usage ( FL) is stored for each film type.
The stored cumulative number (FR) and film usage (FL) are displayed on the display unit 20a as necessary, printed on a label sheet by the label printing applicator 24, or external devices via the communication unit 104. Sent to 110.
The cumulative number of film rolls (FR) is cleared when a new film roll is received by ordering. If the cumulative number is stored without clearing, the film usage of the packaging machine A will be used. You will remember your achievements.
[0028]
The embodiment described above corresponds to claims 1, 3, 5-7 and 9.
In the embodiment, as the cumulative amount of film used, the cumulative number (FR) of used film rolls and the film usage (FL) of currently used film rolls are detected and stored. Only the cumulative number (FR) of film rolls may be used as the cumulative usage (corresponding to claim 2).
In that case, since the data used in inventory management only needs to be able to grasp the number of film rolls used, the film usage (FL) of the currently used film rolls may be excluded from the count, Since the actual error will increase when a packaging machine is installed, it is preferable to add the cumulative number of used film rolls (FR) to the cumulative number of used film rolls (FR) and the number of used film rolls (cumulative use). As a quantity).
[0029]
Further, regarding the film storage amount (FL) detection and storage process, in the above-described embodiment, the cut film length is accumulated and corresponds to claim 5, but the present invention is not limited to this, and other embodiments described below are also provided. It may be an example.
(Other Example 1)
Tray G used for packaging₁The cumulative value is stored for each type, and the film usage (FL) is calculated by calculation based on the data (corresponding to claim 4).
That is, tray G₁Type of T₁, T₂...... T_nAnd the cumulative number of used trays is N₁, N₂...... N_nThen, the tray type T from the aforementioned tray file (see FIG. 3)₁, T₂...... T_nEvery film length F₁, F₂...... F_nBased on them,
FL = N₁× F₁+ N₂× F₂...... N_n× F_n
It is calculated by the arithmetic processing.
Instead of the cumulative value for each type of tray used, the cumulative value for each type of packaged product G is stored, the type of tray used is determined from the product G, and the tray type is determined from the tray file. T₁, T₂...... T_nTray length F every₁, F₂...... F_nAnd the film usage (FL) may be calculated by the aforementioned arithmetic processing.
[0030]
(Other Example 2)
In the case of the above embodiment and other example 1, the film usage (FL) was calculated by accumulating the film length used for actual packaging. The film fed out when the roll is set is not added to the amount used.
In order to solve the problem, a means for detecting the number of rotations of the roller in the film transfer path from the film roll set in the film placement unit 4 to the packaging unit 3, preferably the film feeding roller, is provided. This is a mode of calculating the actually used film usage based on the above (corresponding to claim 8).
Of course, the film 5 'itself is stretchable and changes in length depending on the temperature, so that an accurate film usage cannot be calculated.
[0031]
Next, FIG. 6 shows an embodiment of a film roll inventory management system including a film usage detection system in the packaging apparatus of the present invention, and a plurality of stretch wrapping machines A1, A2,. Are connected to the management apparatus B by a LAN.
Each packaging machine A1, A2... An includes a means for detecting and storing the cumulative number (FR) of used film rolls as described above and the film usage (FL) of the film roll currently in use. The communication unit 104 is connected to the management apparatus B.
The management apparatus B is specifically a personal computer, and totalizes and manages the product files and the performance files of each packaging machine, and includes a counting unit and an inventory management unit to be described later.
[0032]
A specific processing operation of the management apparatus B will be described based on a flowchart shown in FIG.
This processing operation starts when the operation of the management apparatus B or a set condition, for example, a condition such as 5:00 pm every day or 5:00 pm every Monday is satisfied.
(Step 30)
The cumulative use data of the film stored in the RAM 103 of each packaging machine A1, A2... An, that is, the cumulative number (FR) and the film usage (FL) of the film roll are received. The received data is displayed on the display unit of the management apparatus B and / or printed by a printer.
(Step 31)
The number of used film rolls is calculated for each film type. In that case, the film roll in use in each packaging machine is also subject to calculation, that is, the calculated value obtained by adding 1 to the cumulative number (FR) of film rolls stored in each packaging machine. The number of film rolls is S. The calculated number of film rolls is displayed on the display unit and / or printed by a printer.
[0033]
(Step 32)
The stock number (Z) of film rolls is calculated for each film type. That is,
It is calculated by the calculation process of Z = IS. However, I is the total number at the time of receipt which added the stock quantity at that time to the number of receipts of a film roll.
(Step 33)
It is determined whether or not the calculated inventory quantity (Z) is equal to or less than the reference inventory quantity, that is, the order quantity.
(Step 34)
If the stock quantity (Z) is less than or equal to the number of orders, the corresponding film roll is ordered. This ordering process is an automatic ordering process using online if the management apparatus B is connected to a manufacturer or a dealer online using the Internet or a telephone line. Issue a voucher.
[0034]
When a film roll is received, the total number I at the time of storage is stored, and the number S of used film rolls of the packaging machine for the film roll that has been stored is cleared. Also, instead of clearing the number of used film rolls S, the number of used film rolls S when there was a warehousing.₀The number of film rolls currently used S₁The number of film rolls used this time (S = S₁-S₀) May be calculated.
[0035]
Thus, according to the film roll inventory management system, even when a plurality of packaging machines are used and film rolls of different film types are used in the respective packaging machines, inventory management of the film rolls is possible. It can be done efficiently and accurately. This embodiment corresponds to claims 10 and 12.
[0036]
FIG. 8 shows another embodiment of a film roll inventory management system including a film usage detection system.
In the embodiment of FIG. 6, the management device B is configured separately from each packaging machine A1, A2... An, but in FIG. 8, one of the plurality of packaging machines A1, A2. For example, a management function unit B ′ equivalent to the management device B is provided in the packaging machine A1 to serve as the parent machine A1 ′. Other packaging machines are connected to the parent machine A1 'as child machines A2' ... An '. This embodiment corresponds to claims 11 and 13.
[0037]
In the above embodiment, the case where one film roll 5 is set in the film roll arrangement part 4 and packaging is performed using only one film roll has been described, but a plurality of film rolls are set in the film roll arrangement part. In addition, a packaging machine that selectively uses a film roll to be used according to the product to be packaged may be used. In that case, the accumulated usage of the film is detected and stored for each selected film roll.
In addition, the packaging machine shown in the embodiment has been described as a weighing and packaging pricing machine, but it may be a simple packaging machine that does not perform weighing or pricing, and any packaging machine that feeds a film from a film roll. The specific structure is not limited.
[0038]
【The invention's effect】
  According to the invention, the packaging device has a cumulative number of used film rolls,as well asAnd the film roll currently in useAccumulatedFilm usageTogether withSince the accumulated amount of film used is detected and stored, the amount of film used and the number of film rolls in stock can be confirmed and grasped easily and accurately, and appropriate film inventory management can be performed. Therefore, stock management and ordering work for film rolls can be greatly improved.
  AndTheIt is possible to grasp a more detailed real number of the accumulated usage amount of the film and to predict a new film roll replacement time due to the film end.
[0039]
  Claim2According to the present invention, since the amount of film used is detected and stored using the packaging result data such as the type and quantity of the packaged goods stored in the conventional weighing and packaging pricing machine, a sensor for detecting the amount of film used Etc., and the amount of film used can be calculated by calculation when necessary.
  Claim3According to the above, since the film usage amount actually used for packaging by the packaging device is accumulated, it is possible to obtain packaging actual data such as the type and quantity of the packaged product without using a sensor for detecting the film usage amount. Even if it is not stored, the amount of film used can be detected and stored.
[0040]
  Claim4According to the above, since the cumulative number of film rolls is added based on the operation of the end of the film roll or the installation of a new film roll, Can be detected.
  Claim5Therefore, when an error in detecting the end of a film roll or the installation of a new film roll occurs due to an erroneous operation or malfunction, a warning to that effect is given. Can be detected.
  Claim6According to the above, since the amount of film used is detected based on the film that is actually fed out and transported for packaging, even if there is an invalid film that occurs when a film roll is set or due to packaging mistakes, The amount can be detected accurately.
  Claim7According to the above, even when a plurality of types of films are used, it is possible to easily and accurately check and grasp the amount of film used and the number of stocks for each type of film.
[0041]
  In addition, according to the film usage detection system of the present invention, even when a plurality of packaging devices are used, it is possible to easily and accurately check and grasp the film usage and inventory quantity (claims).8) And in addition, appropriate inventory management and automatic ordering can be performed (claims)Ten).
  And claims9, 11According to this, a separate management device is not required, the system can be configured at low cost, and the arrangement space can be made compact.
[Brief description of the drawings]
FIG. 1 is a cross-sectional side view showing an outline of a packaging device of the present invention.
FIG. 2 is an electrical configuration diagram of the system of the present invention.
FIG. 3 shows an example of a tray file stored in a RAM.
FIG. 4 is a flowchart of a processing operation for detecting and storing a film usage (FL) in use.
FIG. 5 is a flowchart of a processing operation for detecting and storing a cumulative number (FR) of used film rolls.
FIG. 6 is a system diagram showing a film roll inventory management system including a film usage detection system in the packaging apparatus of the present invention.
7 is a flowchart for explaining a processing operation of the management apparatus shown in FIG. 6;
FIG. 8 is a system diagram showing another embodiment of the inventory management system shown in FIG. 6;
[Explanation of symbols]
A: Stretch wrapping machine 4: Film placement part
5: Film roll 5 ': Film
A1, A2 ... An: Stretch wrapping machine B: Management device

Claims (11)

In a packaging device that wraps goods with a sheet-like film drawn from a film roll set in a film supply unit,
A packaging device comprising means for detecting and storing a cumulative amount of film used that is a combination of a cumulative number of used film rolls and a cumulative amount of film rolls currently in use . The packaging apparatus according to claim 1 , wherein the amount of the film roll currently in use is calculated based on the type and quantity of the packaged product or the type and quantity of the tray used for the packaged product . The packaging apparatus according to claim 1 , wherein the amount of the film roll currently in use is calculated by a cumulative total of film lengths cut for packaging. The packaging apparatus according to claim 1, wherein the cumulative number of used film rolls is added each time an end of the used film roll or a new film roll is detected . 5. The packaging device according to claim 4, wherein when adding the cumulative number of film rolls, it is determined whether or not the detection is appropriate based on a usage amount of the film roll, and if it is determined that the detection is not appropriate, a warning is given to that effect. . The packaging apparatus according to claim 1, wherein the cumulative usage amount of the film is calculated based on a rotation number of a roller that is provided in the film transfer path and rotates by a film transfer operation. The packaging apparatus according to any one of claims 1 to 6, wherein the cumulative usage amount of the film is detected and stored for each type of film to be used . It consists of a management device and a plurality of packaging devices connected to it. A film usage amount detection system in a packaging apparatus, comprising: a means for detecting; and the management device includes a totaling means for totalizing a film cumulative usage amount of each packaging apparatus. The film usage detection system for a packaging device according to claim 8 , wherein at least one of the plurality of packaging devices is configured as a master unit in which the management device is integrated. A management device and a plurality of packaging devices connected to it, each packaging apparatus cumulative number of used film roll, and the accumulated amount of the film combined with The accumulated amount of the film roll currently in use The managing device includes a means for detecting, a totaling unit for totalizing the cumulative film usage amount of each packaging device, and managing film roll inventory based on the total film cumulative usage amount, and the number of stocks is a predetermined amount or less. An inventory management system for film rolls in a packaging apparatus, comprising an inventory management means for performing automatic ordering processing in the event of a failure. 11. The film roll inventory management system for a packaging apparatus according to claim 10 , wherein at least one of the plurality of packaging apparatuses is configured as a master unit in which the management apparatus is integrated.

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