JP3228221B2 - Tray type detection device and tray type detection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray type detection device for automatically detecting the size of a product storage container (so-called tray) used for packaging and weighing products such as meat, fresh fish, vegetables and the like. And a tray type detection method.

[0002]

2. Description of the Related Art When packing or weighing products such as meat, fresh fish, vegetables, etc., they are stored in a product storage container, a so-called tray, and the entire tray is wrapped and weighed. Therefore, in the case of packaging, the tray type (vertical / horizontal dimension) is the size of the article to be packaged (vertical / horizontal dimension), and in the case of weighing, the weight of the tray is the tare weight.

For this reason, conventionally, the type (tray number) of a tray is set in advance for each product number (product number) of a product to be packaged or weighed and valued, and the product number is set when packaging or weighing processing is performed. A tray type is specified by inputting, and packaging control data and tare data are automatically set from the specified tray type. However, in this method, there is a possibility that an error may occur when setting an incorrect tray number when setting a tray number for each product number, or when using a tray other than the number set when storing products in the tray.

[0004] When such an error occurs, in the case of packaging, beautiful packaging cannot be performed, and the packaging may fail, resulting in damage to the product. In the case of weighing, it is difficult to notice the occurrence of mistakes, so if the tare weight is lower than the actual value, the net weight will be displayed more, and there is a possibility that it will be subject to administrative sanctions as fraudulent activities. If the tare weight is large, the net weight is displayed correspondingly small, resulting in damage to the shop.

For this reason, recently, in a packaging machine, a weighing and weighing machine, a weighing and weighing machine and the like, a tray type is automatically detected, a packaging condition is determined based on the detected tray type, and a tare weight ( Tray weight). With this configuration, the above-mentioned problem (the set tray number does not match the actual tray number) is solved.

In view of the above, the present applicant has filed an application for detecting the tray type (size) and automatically setting the tare weight (Japanese Patent Application No. 9-25253).
7, Japanese Patent Application No. 10-51132). In the embodiment of the present invention, the length L of the tray (dimensions in the transport direction and the orthogonal direction) is detected by the length detection sensor before the product is loaded into the product placement unit, and the width W ( (The depth dimension and the dimension in the transport direction) are detected by the depth detection sensor. Therefore, in the conventional apparatus, when the depth dimension W is detected, the tray type (tray type = tray number) can be determined.

[0007]

However, in the above-described method, the type of tray is determined as quickly as possible because the film cut length and the amount of pre-stretch are not determined until the packaging conditions are determined based on the determined type. Although the timing is preferable, conventionally the tray type could not be detected unless the product was conveyed.Therefore, the length of the carry-in compare had to be increased, and the equipment became larger, and the tare weight was automatically calculated based on the tray type. When setting,
The tare weight must be set when the product is on the weighing pan according to the requirements of the Measurement Law.However, if the product placement part is a weighing pan in the above configuration, it must be done after the product is taken out of the weighing pan. There was a problem that the tare weight could not be determined.

As a method for solving this problem, a method has been developed in which the type of tray is detected before a product is transported on a product mounting portion (weighing pan) using a TV camera.
This method is not preferable because it increases the cost, takes time for data processing, and has a problem of erroneous detection. Further, it is conceivable that the depth dimension W is detected by the same method as that of the length L sensor. However, the error increases due to the disturbance of the attitude of the product. And that the configuration of the conventional device must be significantly changed.

The present invention has been made in view of the above circumstances, and has a tray type detection capable of detecting a tray type with a simple configuration (without changing a conventional configuration) before transporting a product. It is an object to provide an apparatus and a tray type detection method.

Further, according to the present invention, there are various types (sizes) of trays for each maker, and these are widely used by each user. In most cases, users use only a limited number of tray manufacturers and types, and it is almost impossible to use trays that have the same width (or height) but differ only in height (or width). Even if it is, it is very rare, so only one of the vertical and horizontal dimensions is detected and the tray type (size)
Is determined based on the knowledge that the detection of the tray type (size) can be performed with a considerable probability even if the determination is made.

[0011]

[0012]

[0013]

Means for Solving the Problems The invention according to claim 1
Is provided with storage means for storing data such as tare weight for each tray type, reads out data such as tare weight from the storage means based on the detected tray type, and performs processing based on the read data. In the tray type detecting device in the device to be executed, first detecting means for detecting one of the vertical and horizontal dimensions of the product (tray) placed on the product placing portion; A tray type determining unit that determines a tray type based on a detection result of the detecting unit; a reading unit that reads data such as a tare weight from the storage unit based on the tray type determined by the determining unit; Processing means for performing processing based on the read data; and a second detecting means for detecting the other of the vertical and horizontal dimensions of the product (tray) carried out of the product mounting portion. And a checking means for checking whether or not the tray type determined by the tray type determining means is correct based on the detection result of the second detecting means. provide.

[0014] According to a second aspect of the invention, the tray type detection apparatus according to claim 1, wherein, when the tray type is determined to be incorrect by said checking means, the detection result of said first and second detecting means A tray type detection device which reads data of a tray type determined based on the data from the storage means and continues processing based on the read data.

[0015] According to a third aspect of the invention, the tray type detection apparatus according to claim 2, provides a tray type detection device, characterized in that it displays that have changed the tray type.

[0016] According to a fourth aspect of the invention, the tray type detection apparatus according to claim 1, wherein, when the tray type is determined to be incorrect by said checking means, to cancel or suspend the processing of the apparatus, to that effect Provided is a tray type detection device that provides notification.

The invention described in claim 5 is the invention according to claim 2 or
4. In the tray type detecting device according to 4 , when the check unit determines that the tray type is not correct, the tray type determined based on the detection result of the first and second detection units is stored, and Is a tray type determining means for determining a tray type based on the stored tray type.

According to a sixth aspect of the present invention, there is provided a storage means for storing a tare weight for each type of tray for storing goods, and reading out the tare weight data from the storage means based on the detected tray type. In a tray type detection device in a weighing and valuing device that calculates a net weight based on the output tare weight, a weighing plate provided in a product mounting portion on which a product is mounted, and a product mounted on the weighing plate (Tray) a first detecting means for detecting one of the vertical and horizontal dimensions, a tray type determining means for determining a tray type based on a detection result of the first detecting means, Reading means for reading the tare weight from the storage means based on the tray type determined by the determining means; and calculating processing of the net weight of the product based on the tare weight read by the reading means. Processing means, second detection means for detecting the other of the vertical and horizontal dimensions of the product (tray) carried out of the weighing pan, and the tray based on the detection result of the second detection means. Checking means for checking whether or not the tray type determined by the type determining means is correct; and, if the checking means determines that the tray type is incorrect, based on detection results of the first and second detecting means. And a net weight recalculating means for reading out the tare weight from the storage means based on the determined tray type and calculating a net weight with the read out tare weight. Is performed, the operator is notified of the fact, and the data processing is continued.

According to a seventh aspect of the present invention, there is provided a storage means for storing packaging control data for each type of tray for storing goods, and reading out the packaging control data from the storage means based on the detected type of tray. In a tray type detection device in a packaging device that performs packaging based on the read packaging control data, a product placement portion on which a product is placed, and the vertical and vertical positions of the product (tray) placed on the product placement portion.
First detection means for detecting one of the horizontal dimensions, tray type determination means for determining the tray type based on the detection result of the first detection means, Reading means for reading the packaging control data from the storage means based on the tray type; processing means for wrapping the product based on the packaging control data read by the reading means; and Second detecting means for detecting the other of the vertical and horizontal dimensions of the product (tray) during transportation of the product, and the tray type determining means determining the tray type based on the detection result of the second detecting means. Checking means for checking whether the selected tray type is correct, and when the checking means determines that the tray type is not correct, the tray type is determined based on the detection results of the first and second detecting means. The packaging control data is read from the storage means based on the tray type, and if necessary, the transportation of the product is temporarily stopped, and after the packaging of the product is enabled by the packaging control data, the Provided is a tray type detection device characterized in that conveyance is restarted.

[0020] The invention according to claim 8 is the invention according to claim 6 or
7. The tray type detection device according to claim 7 , wherein the tray type S determined based on the detection result L1 of said first detection means.
1 stores the tray type S2 determined on the basis of the detection results of the first and second detecting means when the checking means determines that the tray type is not correct. A tray type detecting device is provided wherein the tray type determining means determines the tray type S2 based on the detection result L1 of the detecting means.

The invention according to claim 9 is the invention according to claim 6 or
7. A tray type detecting device according to claim 7 , wherein the detected tray type is stored for each product.

[0022]

[0023]

According to a tenth aspect of the present invention, there is provided storage means for storing data such as tare weight for each tray type, and data such as tare weight is read from the storage means based on the detected tray type. In a tray type detection method in an apparatus that executes a process based on read data, a method for detecting one of vertical and horizontal dimensions of a product (tray) placed on a product placement unit is provided. (1) detecting means, tray type determining means for determining a tray type based on the detection result of the first detecting means, and data such as tare weight from the storage means based on the tray type determined by the determining means. Reading means for reading
Processing means for performing processing based on the data read by the reading means; and second detecting means for detecting the other of the vertical and horizontal dimensions of the product (tray) carried out of the product placing portion. Checking means for checking whether or not the tray type determined by the tray type determining means is correct based on the detection result of the second detecting means. provide.

According to an eleventh aspect of the present invention, in the tray type detecting method according to the tenth aspect , when the checking unit determines that the tray type is incorrect, the detection result of the first and second detecting units is provided. A tray type detection method characterized by reading data of a tray type determined based on the data from the storage means and continuing processing based on the read data.

According to a twelfth aspect of the present invention, there is provided the tray type detecting method according to the eleventh aspect, wherein a display that the tray type has been changed is displayed.

According to a thirteenth aspect of the present invention, in the tray type detecting method according to the tenth aspect , if the check means determines that the tray type is incorrect, the processing of the apparatus is stopped or interrupted, and the effect is determined. Provided is a tray type detection method, which is characterized by performing notification.

According to a fourteenth aspect of the present invention, in the tray type detecting method according to the eleventh or thirteenth aspect , when the tray type is determined to be incorrect by the checking means, the first and the second types are determined. A tray type storing a tray type determined based on a detection result of the second detecting means, and from the next time, determining the tray type based on the stored tray type by the tray type determining means. A type detection method is provided.

According to a fifteenth aspect of the present invention, there is provided a storage means for storing a tare weight for each type of tray for storing goods, and reading out the tare weight data from the storage means based on the detected tray type. In a tray type detection method in a weighing and valuing apparatus that calculates a net weight based on an output tare weight, a weighing plate provided in a product mounting portion on which a product is mounted, and a product mounted on the weighing plate (Tray) a first detecting means for detecting one of the vertical and horizontal dimensions, a tray type determining means for determining a tray type based on a detection result of the first detecting means, Reading means for reading the tare weight from the storage means based on the tray type determined by the determining means; and processing for calculating the net weight of the product based on the tare weight read by the reading means. Processing means; second detection means for detecting the other of the vertical and horizontal dimensions of the product (tray) carried out of the weighing dish; and the tray based on a detection result of the second detection means. Checking means for checking whether or not the tray type determined by the type determining means is correct; and, if the checking means determines that the tray type is incorrect, based on detection results of the first and second detecting means. And a net weight recalculating means for reading out the tare weight from the storage means based on the determined tray type and calculating the net weight with the read out tare weight. Is performed, the operator is notified of the fact, and the data processing is continued, thereby providing a tray type detection method.

[0030] The invention according to claim 16 is provided with storage means for storing packaging control data for each type of tray for storing commodities, and reads out packaging control data from the storage means based on the detected type of tray. In a tray type detection method in a packaging apparatus that performs packaging based on the read packaging control data, a product placement section on which a product is placed, and a product (tray) placed vertically on the product placement section. First detection means for detecting one of the horizontal dimensions, tray type determination means for determining the tray type based on the detection result of the first detection means, Reading means for reading packaging control data from the storage means based on a tray type; processing means for packaging goods based on the packaging control data read by the reading means; A second detector for detecting the other of the vertical and horizontal dimensions of the product (tray) conveyed from the product placement unit to the packaging unit during the conveyance of the product, and a detection result of the second detector Checking means for checking whether or not the tray type determined by the tray type determining means is correct, and when the check means determines that the tray type is incorrect, the first and second detecting means The packaging control data is read from the storage means based on the tray type determined based on the detection result, and if necessary, the transportation of the product is temporarily stopped, and the packaging of the product is performed based on the packaging control data. A tray type detection method is provided, wherein the conveyance of the product is restarted after it becomes possible.

According to a seventeenth aspect of the present invention, in the tray type detecting method according to the fifteenth or sixteenth aspect , the first type is provided.
The tray type S1 determined based on the detection result L1 of the detecting means is determined based on the detection results of the first and second detecting means when the checking means determines that the tray type is not correct. Tray type S2 is stored, and the tray type determining means determines the tray type S2 from the next time with respect to the detection result L1 of the first detecting means.

The invention according to claim 18 is the tray type detecting method according to claim 15 or 16 , wherein the detected tray type is stored for each product. Provide a way.

[0033]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing the overall configuration of a mechanism of a weighing / packaging / pricing apparatus to which the first embodiment of the present invention is applied. Since it is used, it will be briefly described.

In this figure, reference numeral A denotes a stretch film wrapping machine, and a weighing label printer B is arranged on the side of the product conveying path of the wrapping machine A. Reference numeral C denotes a label sticking device for sticking a label printed by the label printer B on a product, and the label sticking device C is disposed above a product transport path. The stretch film wrapping machine A is a wrapping machine having a pre-stretching mechanism, and is provided with a product placement part a for placing a product on the left side of the machine casing A1 in FIG. A pair of reflective sensors 3 that move in the length direction of the product
a, 3a ', and the length L of the product is detected based on the amount of movement of the sensors 3a, 3a'. The detailed description of the configuration and operation of the sensors 3a and 3a 'is described in Japanese Patent Application Laid-Open No. Hei 8-268415 filed earlier by the present applicant, and is omitted here because it is publicly known.

Product length L by a pair of reflective sensors
Is characterized in that it can be measured without contact and without moving the product, and can be measured even if there is a displacement. While the product placed on the product placing portion a by the pusher conveyor 41 is being transferred to the inside of the packaging machine A (on the right side in the figure), a product composed of a plurality of transmission type sensors placed at different heights. The width (depth) W and height H of the product are blocked by the product so that the output light of the detection sensor 3b is blocked.
And the height H are detected. The width W of the product is detected at the position of the pusher of the pusher conveyor when the tip of the product blocks the output light of the sensor 3b, and the height H of the product is detected by the number of blocks of the output light of the sensor 3b. .

Further, when the product moves rightward, it reaches the elevator 42. A packaging section b is provided above the elevator 42, where the products are packaged (the description of the packaging method is omitted). Packaged product is discharge pusher A7
To the discharge path 6. The weighing label printer B calculates the product price from the unit price set in advance based on the data measured by placing the product on the product placement section (weighing dish) a of the packaging machine A, and calculates the price. And other product data are printed on label paper and issued.
The printed and issued label is attached by the label attaching machine C when the commodity reaches the sensor 18.

Next, the electrical configuration of the first embodiment of the present invention will be described with reference to the system configuration diagram shown in FIG. Reference numeral 1 in this figure denotes a weighing control unit, and the weighing control unit 1 executes various programs by executing a program stored in the ROM 11. The RO
M11 stores a control program and control data.

The RAM 12 has a work area, various flags, and registers used when the CPU executes the ROM program, a PLU file (to be described later), a length L-
A tray type table and a tray type-tare data table are stored, and the stored contents are protected by a backup power supply.

The display controller 13 performs various displays of display contents described later and inputs various commands and data (the display unit also performs data error display on the packaging machine side). The weighing unit 14 digitally outputs the weight of the product on the weighing pan. IN
F15 is an interface unit, which is connected to the INF 21 of the packaging control unit 2 and exchanges various data. The contents of the data, in addition to various status data, tray type determination and check data to the weighing pricing machine side from the packaging machine side, also, the length of the product as a labeling data L, width W, the data of the height H Is sent.

The printing unit 16 includes a label for the product name, weight, price,
The unit price, effective date, etc. are printed and issued, and sent to the issuing port.
The sticking unit 17 sticks the issued label to the corresponding product. The commodity detection sensor 18 detects that the commodity has been sent to the label attaching position, and controls the label attaching section based on the detection result.

Next, the packaging control unit 2 in FIG. 2 will be described. The CPU 20 performs various processes by executing a program in the ROM 22 in which a control program and control data are stored. An INF 21 is an interface unit, which is connected to the INF 15 of the weighing / valuation control unit 1 and exchanges various data. The contents of the data
Various other status data, tray type determination and check data to the weighing pricing machine side from the packaging machine side, also, the length of the product as a labeling data L, width W, the data of the height H is transmitted.

The RAM 23 stores, in addition to a work area, a flag, and a register, a tray file for determining various types of packaging control data based on the product size (length L, width W, height H). These tables and files are also protected by the backup power supply, and the data is protected even when the power is turned off. The operation unit 24 is a power switch,
It is composed of command switches such as a start switch, a stop switch, a film feed switch for packaging, and the like. The status display and the error display are displayed on the display unit 13 on the weighing and pricing side.

The mechanism control section 25 generally describes a section for controlling each operation section based on a signal from the CPU 20. In actuality, a drive control circuit for each motor and each solenoid controls the I / O. It is connected to the CPU 20 via a port. What is controlled here is, for example, the elevator motor 26 of the elevator 42, the carry-in conveyor motor 27 of the carry-in conveyor 41, the film transfer motor 28, and the like.
The length (L), height (H), and width (W) detection sensors described above are also included in this portion.

Next, the contents of the processing of the first embodiment of the present invention having the above configuration will be described in order from step SP10 (hereinafter referred to as SP10) with reference to the flowchart shown in FIG. SP10: The operator inputs the product number (product number) of the product to be weighed, packaged, and priced (this product is stored in a tray at another location and prepared). This operation is input by operating the operation unit of the display operation unit 13 in FIG.

The PLU file (price backup file) shown in Table 1 is stored in the RAM 12, and the product name, unit price, tare, and effective date are stored for each product number.

[Table 1]

In this embodiment, since the tare is automatically detected, the tare data is normally 0 g.
If the tare data is stored in the U file (not 0 g), it may be added to the automatically detected tray tare weight. When the product number is input, the PLU data of the product number is read and stored in each register of the RAM.
For example, when "2", "3", "4", "5", and "article number" are input, the product name is "pork loin" and the unit price is "150".
The yen (per 100 g), the tare weight “0 g”, and the effective date “5 days” are stored in the RAM.

SP11: The operator places the product on the weighing pan (product placement section a). SP12: The weight of the placed product is measured.
(Measurement value K) SP13: The length (L) of the product is detected. Actually, the two sensors 3a and 3b are moved in the direction in which they are separated from each other, and the distance between the sensors 3a and 3b when each of the sensors 3a and 3b detects the end of the product is obtained. The data of the length (L) is transmitted from the packaging machine side to the weighing and weighing side via the interface.

SP14... From the length (L) data to C
The tray type is determined by the processing of the PU 10. This determination is made based on a “length-tray type determination table” stored in the RAM (see Table 2).

[Table 2] If the detected length (L) is l ₇ ≦ L ≦ l ₈ , the tray type is TA4. In principle, it is assumed that tray types having the same length (L) and different widths (W) are not used. However, since they are checked and changed, it is not unusable. If there is no tray corresponding to the detected tray, that fact is displayed and the subsequent processing is stopped.

SP15: The tare weight is determined from the tray type by the processing of the CPU 10. This judgment is RAM
This is performed based on the tray type-tare (tray) weight conversion table stored in the table. (See Table 3)

[Table 3] The type TA of this table is a standard rectangular tray, the TB type is a square tray, and the TA type and the TB type have the same length (L). Note that the length (L) and the width (W) have widths of MIN to MAX in consideration of variations in tray dimensions and measurement errors by the measurement sensor.

SP16... Weight K measured in SP12
And the tare (tray) weight F determined in SP15, and SP
A net weight S and a price P are calculated from the unit price U called in step 10. To multiply the price P by (1/100), the unit price is 1
Because it is per 00g. S = K−FP = S × U × (1/100) Then, the calculation result and the like are displayed on the display unit, and this display is held for a certain time. The hold is released when a predetermined time has elapsed, when a product number is input, or when the next product is placed. FIG. 4 shows a display example on the display unit.

SP17: The packaging machine is started, and loading of the product into the packaging section is started. SP18: Product width (W) and height (H) during loading
Is detected. SP19: Check whether the tray type determined in SP14 is correct. This check is performed based on the width (W) data of the tray type-tare (tray) weight conversion table. For example, in SP14, l ₇ ≦ L ≦ l ₈
In this case, if it is determined that the tray type is TA4, it is checked whether the width (W) is W ₁₃ ≦ W ≦ W ₁₄ (check whether W is W of TA4).

SP20: If the check result of the tray type is correct, the process proceeds to SP26. If the check result of the tray type is incorrect, the process of SP21 is performed. If the determination in SP21 ... SP20 is "No", the tray type is determined based on the length (L) and width (W) data of the tray type-tare (tray) weight conversion table. For example, if W ₁₅ ≦ W ≦ W ₁₆ , the tray type is determined to be TB4. If there is no corresponding data in the tray type-tare (tray) weight conversion table as a detection result, the fact is displayed. However, since the packaging machine has been activated, packaging is continued and label No printing or pasting processing is performed.

SP22: Tray weight is determined from the determined tray type. For example, in the case of TB4, 1 is obtained from the tray type-tare (tray) weight conversion table.
It is determined to be 6 g. SP23: The price is recalculated by the following equation. S ′ = K−F ′ P = S ′ × U × (1/100)

SP24: A display indicating that the tray type has been changed is displayed on the display unit of the display operation unit 13. Significantly change the previously displayed weighing data screen so that it can be reliably transmitted to the operator. FIG. 5 shows an example of the display. SP25: Rewrite the data of the length (L) -tray type table. Changes in l ₇ and l ₈ in the example of FIG. 5,
Change TA4 to TA5. Therefore, l ₇ ≦ L ≦ l ₈
In the case of, the next time it is determined to be TB4.

SP26: Packaging machine control data such as the length of the film, the amount of pre-stretch, the amount of pre-stretch loosening, the timing of opening each clamp, etc., from the detected L, W, H data by the processing of the CPU 20. To determine. This determination is made based on the above-described tray file (detailed description omitted).

SP27: The packaging process is performed by the CPU 20 based on the control data determined in SP26. SP28: A price label is printed and issued. During continuous operation, since there is one product between the weighing unit and the label attaching unit, FIFO (first-in, first-out) buffer print data is stored, and printing is performed from the previous data. SP29: When a product is detected by the product detection sensor 18, a label is attached after a predetermined time.

If it is determined "No" in the processing of SP20, the processing may be interrupted and a message to that effect may be displayed. Although the data of the table is rewritten in the process of SP25, it is not necessary to rewrite the data. Further, as shown in Table 4, a tray type storage area can be provided in the PLU file to store the automatically detected tray type.

[Table 4]

In this way, even if the sensor fails, processing can be performed using the tray type data of the PLU file. In this case, the automatically detected tray weight may be directly stored as the tare weight instead of the tray type.

When data is set (stored) in the length-tray type determination table or the tray type-tare (tray) weight conversion table, the data can be set using the sensor and the weighing unit of the apparatus. For example, when the type of tray to be used as the setting mode is input and the length (L) of the tray is measured by the sensors 3a and 3a ' , the table is written as shown in Table 5.

[Table 5]

In the case of the tray type-tare (tray) weight table, the tray type is key-input as a setting mode, and when the tray is mounted on the mounting portion, the packaging machine starts idling and the weight of the tray is started. F ′, length L ′, width W ′ are measured and stored in a table. With such a configuration, setting of table data can be easily performed by using the apparatus (see Table 6).

[Table 6]

Next, according to the second embodiment of the present invention,
The processing operation of the packaging machine without the weighing unit and the label printing / sticking unit will be described. In the case of such a packaging machine, the packaging control data is determined from the tray type. The packaging control data includes, for example, the film length, the amount of pre-stretch, the amount of loosening of the pre-stretch, the timing of opening each film clamp, and the like.

Conventionally, the tray type is determined by measuring L, W, and H. In the second embodiment, the tray type is determined only by detecting L. Then, H and W are measured and checked later, and if the check result is not correct, correct data is read. If the correct data is read out, the packaging machine has already been started, and if the control data has changed, check if there is no problem with continuing the packaging process, and if there is a problem, transport the product. Is temporarily suspended and resumed when it becomes possible to resume.

The mechanical configuration of the second embodiment is different from that of the first embodiment in that there is no measuring unit and no label printing / attaching unit, the length of the carry-in conveyor is short,
W and H detection sensors are arranged closer to the packaging machine side. The difference in the system configuration is that there is no control unit on the weighing and pricing side, and there is a control unit on the packaging machine side. Hereinafter, an operation unique to this embodiment will be described with reference to a flowchart shown in FIG.

SP104: The packaging data is determined according to the tray type-control data conversion table of the RAM 23 shown in Table 7.

[Table 7] SP105: The packaging machine starts operating when the product is loaded. SP106... W and H are detected.

SP107: It is determined whether or not the tray type is correct based on the detected W data. In this embodiment, there is no tray having the same L and W data but different H only. If there is a tray having the same L and W but different H, it is necessary to determine whether the tray is correct not only by W but also by H. SP111: The control data of the packaging machine is changed.

SP112: When the control data is changed, it is determined whether or not the conveyance of the product can be continued as it is. For example, the amount of pre-stretch is W, H
Depending on the amount of pre-stretching, the amount of pre-stretching that has been changed is significantly larger than the initially determined amount of pre-stretching. This is because the transfer to the film position may occur.

SP113 ... SP112 determines "Y
In the case of "es", the transportation of the product is stopped. The stop position may be stopped at that time, or may be a predetermined position such as on an elevator head. At this time, the packaging machine performs a pre-stretching process and the like. SP114: It is determined whether or not the transport of the product can be resumed. SP115: The conveyance of the product is restarted and the packaging is performed.

As described above, the first embodiment and the second embodiment of the present invention
The operation of the embodiment has been described in detail with reference to the drawings. However, the present invention is not limited to this embodiment, and even if there is a design change within a scope not departing from the gist of the present invention, the present invention is included in the present invention. It is.

For example, the following configurations are also included in the present invention. In the embodiment, the data such as the tare weight is read from the storage unit based on the determined tray type. However, it is checked whether or not the data matches the tray type stored in the PLU file using the determined tray type. (The data is read out according to the tray type stored in the PLU file). The tray type data is stored in the PLU file of the conventional device, and when these data are copied and used, the tray type data is already stored. Therefore, by comparing the stored tray type with the tray type actually used (detected in the present invention), it is possible to check for a work error before starting the apparatus.

In the embodiment of the present invention, if it is assumed that the trays having the same length L and different widths W are not used, the first detection means can detect all the correct tray types in principle. it can. Even if there is no such premise, a correct tray type is finally detected and a message indicating that the previously determined tray type has been changed is displayed, so that no inconvenience occurs.

Although the embodiment has been described with reference to a weighing / packaging / pricing device, the present invention is not limited to this, and any device that uses different data based on the type of tray can be used. It is. For example, a packaging machine, a weighing / pricing machine, a wrapping / weighing / pricing machine, and the like can be considered.

When the data to be read is tare, the processing when the film weight needs to be added and the processing when there are accessories are the same as those described in the above-mentioned application.

The structure of the sensor, especially the structure of the first detecting means, is not limited to the embodiment. For example, instead of moving the sensors as in the embodiment, a plurality of sensors may be arranged in an array (sensor array). Further, a configuration similar to that of a conventional centering device may be used.

[0074]

As described above, according to the present invention, the following effects can be obtained. It is hardly conceivable to use the same user with the same length (or width) dimension but different width (or length) dimensions, so if one of the vertical and horizontal dimensions is detected, the tray can be used. It is noted that the type can be detected, and only one of the dimensions is detected to determine the tray type, so that the configuration is simple.

It is possible to detect the type of tray at the product placement section without changing the conventional configuration.

According to the first and tenth aspects of the present invention, the other dimension is detected later, and based on the detection result, it is checked whether or not the previously determined tray type is correct. Can be prevented.

Claims 2, 4, 6, 7, 11, 13, 1
According to the inventions of Nos. 5 and 16 , when the previously determined tray type is not correct, the data of the correct tray type is read out, and the processing is performed with the read data. Is done.

According to the third and twelfth aspects of the present invention, in the above case, the operator is notified of the fact, so that the operator can immediately determine if a mistake has been made in the operation (the tray type has been missed). It is conceivable that the tray type is consciously changed depending on the case and the sale.)

According to the fifth , eighth , fourteenth and seventeenth aspects of the present invention, when it is determined that the tray type determined by the detection result of the first detecting means was incorrect last time, it is determined that the tray type is correct from the next time. Since the stored contents are rewritten so as to be determined by the selected tray type, there is no possibility that the same determination error will be repeated every time even if a setting error is made.

According to the ninth and eighteenth aspects of the present invention, the detected tray type is stored for each product, so that the processing can be continued without any trouble based on the stored tray type data even if the detecting means breaks down. .

[Brief description of the drawings]

FIG. 1 is a diagram illustrating an overall configuration of a mechanism of a weighing, packaging, and pricing apparatus to which a first embodiment of the present invention is applied;

FIG. 2 is a system configuration diagram according to the first embodiment of the present invention.

FIG. 3 is a flowchart illustrating the operation of the first embodiment of the present invention.

FIG. 4 is a diagram showing an example of display according to the first embodiment of the present invention.

FIG. 5 is a diagram showing an example of display according to the first embodiment of the present invention.

FIG. 6 is a flowchart illustrating the operation of the second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List A Stretch film wrapping machine A1 Machine casing A7 Discharge pusher a Commodity placement unit 3a, 3a 'Reflection sensor 3b Width and height sensor B Weighing label printer b Packaging unit C Labeling device 3 1 Measurement unit control unit 10 CPU 11 ROM 12 RAM 13 Display / operation unit 14 Measuring unit 15 INF 16 Printing unit 17 Pasting unit 18 Product detection sensor 2 Packaging control unit 21 INF 22 ROM 23 RAM 24 Operation unit 25 Mechanism driving unit 26 Elevator motor 27 Carry-in conveyor motor 28 Film transport motor 29 Product length L detection sensor 30 Product width W, height H detection sensor 41 Pusher conveyor 42 Elevator

Claims (18)

(57) [Claims] 1. A storage means for storing data such as a tare weight for each tray type, and data such as a tare weight is read from the storage means based on the detected tray type, and based on the read data. A first type of detecting means for detecting one of a vertical dimension and a horizontal dimension of a product (tray) placed on the product placing section; Tray type determining means for determining a tray type based on a detection result of the first detecting means; reading means for reading data such as tare weight from the storage means based on the tray type determined by the determining means; Processing means for performing processing based on the data read by the reading means; and detecting the other of the vertical and horizontal dimensions of the product (tray) carried out of the product placing portion. 2. A tray comprising: detecting means for determining whether the tray type determined by the tray type determining means is correct based on the detection result of the second detecting means; Type detection device. 2. The tray type detecting device according to claim 1 , wherein when the check unit determines that the tray type is incorrect, the tray is determined based on a detection result of the first and second detection units. A tray type detecting device for reading data of a type from a storage means and continuing processing based on the read data. 3. The tray type detecting device according to claim 2, wherein the display unit displays on the display unit that the tray type has been changed. 4. The tray type detection device according to claim 1 , wherein when the check unit determines that the tray type is not correct, the processing of the device is stopped or interrupted, and the fact is notified. Tray type detection device. 5. The tray type detecting device according to claim 2 or 4, wherein when the tray type is determined to be incorrect by the check means is determined based on a detection result of said first and second detecting means A tray type detecting device that stores a tray type based on the stored tray type from the next time. 6. A storage means for storing a tare weight for each type of tray for storing a product, reading tare weight data from the storage means based on the detected tray type, and based on the read tare weight. A tray type detection device in a weighing and valuing device that calculates a net weight by using a weighing dish provided in a product mounting portion on which a product is mounted; First detecting means for detecting one of the dimensions, tray type determining means for determining a tray type based on a detection result of the first detecting means, and tray determined by the determining means Reading means for reading the tare weight from the storage means based on the type; processing means for calculating a net weight of the product based on the tare weight read by the reading means; Second detection means for detecting the other of the vertical and horizontal dimensions of the product (tray) carried out of the dish; Checking means for checking whether the tray type is correct or not, and if the checking means determines that the tray type is incorrect, a tray type determined based on the detection results of the first and second detecting means Read out the tare weight from the storage means on the basis of the above, and a net weight recalculating means for performing a net weight calculation process with the read out tare weight, and A tray type detection device that notifies an operator of the fact and continues the data processing. 7. A storage means for storing packaging control data for each type of tray for storing goods, and reading out packaging control data from said storage means based on the detected tray type. In the tray type detection device in the packaging device that performs packaging based on the product, any one of a product placement portion on which a product is placed and a product (tray) placed on the product placement portion has a vertical or horizontal dimension. First detecting means for detecting one of the dimensions, tray type determining means for determining a tray type based on the detection result of the first detecting means, and storing the data based on the tray type determined by the determining means. Reading means for reading the packaging control data from the means; processing means for wrapping the product based on the packaging control data read by the reading means; and Conveyed goods (tray)
A second detecting means for detecting the other of the vertical and horizontal dimensions during the transportation of the product; and a tray type determined by the tray type determining means based on a detection result of the second detecting means. A checking unit for checking whether the tray type is correct, and if the checking unit determines that the tray type is not correct, the checking unit determines the tray type based on a detection result of the first and second detecting units. In addition to reading out the packaging control data from the storage means, if necessary, the transportation of the product is temporarily stopped, and the transportation of the product is resumed after the packaging of the packaging is enabled by the packaging control data. Tray type detection device. 8. The tray type detecting device according to claim 6, determining that the tray type S1, which is determined based on the detection result L1 of the first detection means, the tray type is not correct by the check means The tray type S determined based on the detection results of the first and second detection means.
2. The tray type detecting device according to claim 1, wherein the tray type determining unit determines the tray type S2 based on the detection result L1 of the first detecting unit from the next time. 9. The tray type detecting device according to claim 6, tray type detection apparatus and to store the detected tray type for each product. 10. A storage means for storing data such as a tare weight for each tray type, and reading data such as a tare weight from the storage means based on the detected tray type, based on the read data. A tray type detection method in an apparatus that performs processing by using a first detection unit that detects one of vertical and horizontal dimensions of a product (tray) placed on a product placement unit; Tray type determining means for determining a tray type based on a detection result of the first detecting means; reading means for reading data such as tare weight from the storage means based on the tray type determined by the determining means; Processing means for performing processing based on the data read by the reading means; and detecting the other one of the vertical and horizontal dimensions of the product (tray) carried out of the product placing portion. Second detecting means, and checking means for checking whether or not the tray type determined by the tray type determining means based on the detection result of the second detecting means is correct. Tray type detection method. 11. The tray type detecting method according to claim 10 , wherein when the checking unit determines that the tray type is not correct, the tray determined based on the detection results of the first and second detecting units. A tray type detection method characterized by reading data of a type from a storage means and continuing processing based on the read data. 12. The tray type detecting method according to claim 11, wherein the display unit indicates that the tray type has been changed. 13. The tray type detection method according to claim 10 , wherein when the check unit determines that the tray type is not correct, the processing of the apparatus is stopped or interrupted, and the fact is notified. Tray type detection method. 14. The tray type detecting method according to claim 11 or 13, wherein, when the tray type is determined to be incorrect by the check means is determined based on a detection result of said first and second detecting means A tray type which is stored on the basis of the stored tray type. 15. A storage means for storing a tare weight for each type of tray for storing a product, reading tare weight data from the storage means based on the detected tray type, and based on the read tare weight. A tray type detection method in a weighing and valuing apparatus that calculates a net weight by using a weighing dish provided on a product mounting portion on which a product is mounted; First detecting means for detecting one of the dimensions, tray type determining means for determining a tray type based on the detection result of the first detecting means, and tray determined by the determining means Reading means for reading a tare weight from the storage means based on the type; processing means for calculating a net weight of the product based on the tare weight read by the reading means; Second detecting means for detecting the other of the vertical and horizontal dimensions of the product (tray) carried out of the weighing dish; and the tray type determining means determining based on the detection result of the second detecting means. Checking means for checking whether the selected tray type is correct, and a tray determined based on the detection results of the first and second detecting means when the checking means determines that the tray type is incorrect. A net weight recalculating means for reading out the tare weight from the storage means based on the type, and performing a net weight calculating process with the read out tare weight; andwhere the net weight is recalculated. Is a method for notifying the operator of the fact and continuing data processing. 16. A storage means for storing packaging control data for each type of tray for storing goods, and reading out packaging control data from said storage means based on the detected tray type. In the method for detecting the type of tray in a packaging apparatus that performs packaging based on a product, a product placement section on which a product is placed and a product (tray) placed on the product placement section may have any one of vertical and horizontal dimensions. First detecting means for detecting one of the dimensions, tray type determining means for determining a tray type based on the detection result of the first detecting means, and storing the data based on the tray type determined by the determining means. Reading means for reading the packaging control data from the means; processing means for packaging the product based on the packaging control data read by the reading means; (Tray) conveyed to
A second detecting means for detecting the other of the vertical and horizontal dimensions during the transportation of the product; and a tray type determined by the tray type determining means based on a detection result of the second detecting means. A checking unit for checking whether the tray type is correct, and if the checking unit determines that the tray type is not correct, the checking unit determines the tray type based on a detection result of the first and second detecting units. In addition to reading out the packaging control data from the storage means, if necessary, the transportation of the product is temporarily stopped, and the transportation of the product is resumed after the packaging of the packaging is enabled by the packaging control data. Tray type detection method. 17. Tray type detecting method according to claim 15 or 16, wherein determining that the tray type S1, which is determined based on the detection result L1 of the first detection means, the tray type is not correct by the check means The tray type S determined based on the detection results of the first and second detection means.
2. The tray type detecting method, wherein the tray type determining means determines the tray type S2 from the next time based on the detection result L1 of the first detecting means. 18. The tray type detecting method according to claim 15 or 16, wherein the tray type detection method characterized by storing said detected tray type for each product.