Manufacturing process history management device

Abstract

To provide a manufacturing process history management device that enables traceability in the processing steps of products before the products are individually packaged or boxed.SOLUTION: A history management device 4 comprises: an acquisition unit 41 that acquires, divided by predetermined time periods, the input quantity of materials supplied from the previous process and the production quantity and loss quantity in a particular processing step of the products produced based on those materials; a first storage unit 44 that stores the input quantity for each time period and the production quantity and loss quantity for each time period; a specification unit 42 that identifies the connection between the input quantity from the previous process and the production quantity and loss quantity in the particular processing step by allocating the input quantity from the previous process supporting the production quantity and loss quantity for each time period to the production quantity and loss quantity for each time period in the particular processing step; and a control unit 43 that stores the connections of the time periods as a manufacturing process history in the first storage unit 44 or a second storage unit 45.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] One aspect of the present invention relates to a manufacturing process history management device. [Background technology]

[0002] A known production line for sweets and the like includes a combination weighing device that weighs out items whose weights vary to a target weight, a packaging device that produces bags from film and places the items weighed out to the target weight by the combination weighing device into the produced bags, and various inspection devices that inspect the items placed in the bags.Patent Document 1 discloses a production management device that uses serial numbers printed on the bags of such bagged products as a key to manage production information and inspection information for each device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-135144 Summary of the Invention [Problem to be solved by the invention]

[0004] However, while the above-mentioned conventional inventions enable traceability for individual products that are individually wrapped or packaged by assigning serial numbers as described above, there is a demand to also achieve traceability for products (so-called intermediate products) that are processed in unorganized upstream processes during production before being wrapped or packaged.

[0005] Therefore, an object of one aspect of the present invention is to provide a manufacturing process history management device that enables traceability even for unorganized intermediate products that are in the middle of production before being individually wrapped or packaged. [Means for solving the problem]

[0006] (1) A manufacturing process history management device according to one aspect of the present invention includes an acquisition unit that acquires, by division into predetermined time periods, the amount of input material input from a previous process in a processing process when raw materials are turned into a product through multiple processing processes, the amount of production in the processing process of a product produced based on the input material, and the amount of loss incurred in production in the processing process; a first memory unit that stores the input amount for each time period acquired by the acquisition unit, and the production amount and loss amount for each time period; an identification unit that identifies a connection between the input amount from the previous process and the production amount and loss amount in the processing process by assigning the production amount and loss amount for each time period, based on the production amount and loss amount for the most recent time period among the production amounts and loss amounts for each time period in the processing process stored in the first memory unit, back to the input amount from the previous process that supported the production amount and loss amount for each time period; and a control unit that stores the connection for each time period identified by the identification unit in the first memory unit or the second memory unit as a manufacturing process history.

[0007] (2) A manufacturing process history management device according to one aspect of the present invention includes an acquisition unit that acquires, in a chronological order, the amount of input material input from a previous process in a processing process when raw materials are turned into a product through multiple processing processes, the amount of production in the processing process of a product produced based on the input material, and the amount of loss incurred in production in the processing process; a first memory unit that stores the time-series input amount and time-series production amount and loss amount acquired by the acquisition unit; an identification unit that identifies the connection between the input amount from the previous process and the production amount and loss amount in the processing process by retroactively assigning the most recent time-series production amount and loss amount among the time-series production amounts and loss amounts in the processing process stored in the first memory unit to the input amount from the previous process that supported the most recent time-series production amount and loss amount; and a control unit that stores the time-series connection identified by the identification unit in the first memory unit or the second memory unit as the history of the manufacturing process.

[0008] (3) In the manufacturing process history management device described in (2) above, when the identification unit has completed the allocation of the production volume and loss volume in the most recent processing step in the chronological order to the input volume from the previous step, the identification unit may allocate the production volume and loss volume in the next most recent processing step in the chronological order to the input volume from the previous step that has not yet been allocated, in reverse chronological order.

[0009] Until now, in the manufacturing process of confectionery and the like, it was thought that traceability was impossible for unorganized products from raw materials to processing and packaging, but with this configuration, traceability can be made possible by understanding the movement of unorganized items from the previous process to the target processing process as the movement of organized items by time period, and identifying how the understood movement of organized items by time period is connected between the previous process and the target processing process.As a result, even for unorganized intermediate products before they are individually packaged or wrapped, traceability from raw materials to the packaged final product is possible.

[0010] (4) In the manufacturing process history management device of any one of (1) to (3), the connection identified by the identifying unit may be information linking the production volume and loss volume for each time period in one processing step with the input volume for each time period in the previous processing step that is assigned to the production volume and loss volume. In this configuration, it is possible to link by simple calculation that the production volume of one processing step in a certain period is produced based on intermediate products input from the previous processing step to the one processing step in that period and intermediate products input to the one processing step in an earlier period.

[0011] (5) In the history management device for any one of the manufacturing processes described above in (1) to (4), the input amount from the previous process may be calculated based on the production amount of the previous process. With this configuration, the input amount from one processing process can be easily calculated. [Effects of the Invention]

[0012] According to one aspect of the present invention, even if an intermediate product is not in a cohesive state and is in the middle of being manufactured before being individually wrapped or packaged, it is possible to enable traceability as a cohesive item by time period. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a diagram showing a schematic configuration of a production line 100 according to an embodiment. [Figure 2] FIG. 2 is a block diagram showing the functional configuration of the history management device. [Figure 3] FIG. 3 shows an example of data on production volume and loss volume for each time series stored in the first storage unit. [Figure 4] Fig. 4(A) is a bar graph showing the roasting process in the time series data shown in Fig. 3. Fig. 4(B) is a bar graph showing the seasoning drying process in the time series data shown in Fig. 3. [Figure 5] FIG. 5 is a diagram illustrating the processing contents of the management control unit. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, a manufacturing process history management device 4 according to one embodiment will be described with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated explanations will be omitted.

[0015] In this embodiment, the history management device 4 of a cereal food production line 100 will be described as an example, but the invention is not limited to cereal foods. The cereal foods are produced using grains such as corn as raw materials. First, an outline of the cereal food production process will be described.

[0016] In the cereal food manufacturing process, first, processed corn is sieved to remove foreign matter, and the required amount removed is weighed using a weighing device (raw material weighing process). Next, seasoning liquid is added to the corn raw material and it is steamed (steaming process), and the steamed corn raw material is dried (drying process). Next, the seasoned and dried corn raw material is pressed with rolls (pressing process). Next, it is roasted by flowing it through high-temperature hot air (roasting process), and then it is seasoned as desired and dried (seasoning and drying process).

[0017] The cereal food is completed through the above processing steps. The cereal food thus formed is weighed by the combination weighing device 1 shown in Figures 1 and 2, and placed in a packaging bag made from packaging film by the bag-making and packaging device 3, completing the product for shipment to consumers. Next, the product is inspected by inspection devices such as the seal inspection device 5, weight inspection device 6, and foreign body inspection device 7. Next, products determined to be defective by any of the seal inspection device 5, weight inspection device 6, and foreign body inspection device 7 are discharged outside the system by the sorting device 8, and products determined to be non-defective are packed into cardboard boxes by the boxing device 9 and shipped.

[0018] Conventionally, in such a production line 100, after the cereal food is completed, i.e., in downstream processes including the combination weighing device 1, traceability has been made possible by, for example, assigning a serial number to each individually wrapped or packaged product of the cereal food. The history management device 4 of this embodiment is a device that makes it possible to trace disjointed intermediate products in the processing process of manufacturing the cereal food before it is packaged or packed.

[0019] Therefore, in any of the aforementioned raw material weighing process, steaming process, drying process, pressing process, roasting process, and seasoning and drying process (hereinafter referred to as the seasoning process), between each process, the amount of intermediate product for each time period handed over from the previous process to the target processing process can be measured using a measuring device, and traceability can be made possible based on the measured, consolidated amount for each time period.Here, we will explain traceability between the processing processes of the roasting process and the seasoning process as an example.

[0020] As shown in FIG. 1 , in the roasting process, raw corn is roasted by a roasting apparatus 10. The roasting apparatus 10 includes a hot air supplying device 11 that blows high-temperature hot air onto the raw corn, a conveyor 12 that transports the raw corn in one direction, a first weighing unit 13 that weighs the raw corn (product) transported by the conveyor 12, and a second weighing unit 14 that weighs defective products generated in the roasting process. Note that a weighing conveyor may be connected to the rear of the conveyor 12 of the roasting apparatus 10 and serve as the first weighing unit 13. The defective products generated in the roasting process may be sorted by, for example, a color sorting machine to sort out burnt products, or may be removed by hand. The defective products thus rejected are weighed by the second weighing unit 14. The measured values ​​(weights) acquired by the first weighing unit 13 and the second weighing unit 14 are transmitted to the history management device 4.

[0021] In the seasoning process, the corn raw material roasted in the preceding roasting process is seasoned by a seasoning device 20. The seasoning device 20 includes a spray dryer 21 that sprays and dries a liquid raw material seasoned as desired, a conveyor 22 that transports the corn raw material in one direction, a third weighing unit 23 that weighs the corn raw material transported by the conveyor 22, and a fourth weighing unit 24 that weighs defective products generated in the seasoning process. In this seasoning process, a weighing conveyor may be connected downstream of the conveyor 22 and serve as the third weighing unit 23. Defective products generated in the seasoning process may be sorted and discharged by a color sorting machine or may be removed by hand. The rejected defective products are weighed by the fourth weighing unit 24. The weighing values ​​(weights) obtained by the third weighing unit 23 and the fourth weighing unit 24 are sent to the history management device 4. In addition, since the seasoning process involves spraying liquid seasoning material followed by drying, the difference between the amount input to the seasoning process and the amount input from the seasoning process (the sum of the measured value of the third measuring section 23 and the measured value of the fourth measuring section 24) is the amount lost due to drying.

[0022] The first weighing unit 13 and the third weighing unit 23 may, for example, intermittently acquire the weight of the raw corn material (product) in accordance with the conveying speed of the conveyor 12. For example, the predetermined time is the time it takes for the raw corn material to be transported from one end of the conveyor 12 to the other end. In this case, if weighing values ​​are acquired from the first weighing unit 13 and the third weighing unit 23 at predetermined time intervals, the weight of the raw corn material (product) per unit time period can be acquired by simply adding up the weighing values.

[0023] The history management device 4 is communicatively connected to the first weighing unit 13 and the second weighing unit 14 of the roasting device 10, the third weighing unit 23 and the fourth weighing unit 24 of the seasoning device 20, the combination weighing device 1, the bag-making and packaging device 3, the seal inspection device 5, the weight inspection device 6, the foreign matter inspection device 7, the sorting device 8, and the boxing device 9. The history management device 4 may be built into the bag-making and packaging device 3, or may be located via a network in a factory where the production line 100 is installed or in an operator's room at a remote location.

[0024] The history management device 4 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc. The history management device 4 includes an acquisition unit 41, an identification unit 42, a management control unit (control unit) 43, a first memory unit 44, and a second memory unit 45. The acquisition unit 41, the identification unit 42, and the management control unit 43 included in the history management device 4 may be configured as software in which a program stored in the ROM is loaded onto the RAM and executed by the CPU, or may be configured as hardware such as an electronic circuit. The first memory unit 44 and the second memory unit 45 store various information managed in the history management device 4. The first memory unit 44 and the second memory unit 45 are devices such as hard disk drives or solid state drives.

[0025] The acquisition unit 41 acquires, in a time series manner for each time period, the input amount of an input material input from a previous process in one processing process when raw materials are turned into a product through a plurality of processing processes, the production amount in the one processing process of a product produced based on the input material, and the amount of loss occurring due to the production in the one processing process. More specifically, the acquisition unit 41 acquires, by dividing into predetermined time periods (for example, every minute), the input amount of an input material input from a previous process to the one processing process, the production amount of a product produced in the one processing process based on the input material, and the amount of loss occurring due to the production (for example, the amount of loss in the seasoning process includes the weight of defective products rejected by color sorting and the amount of moisture lost during drying).

[0026] The first storage unit 44 stores the production amount and loss amount for each predetermined time period acquired by the acquisition unit 41 in association with each device ID of the transmission source. Therefore, the first storage unit 44 stores the production amount and loss amount for each time period in each processing step in chronological order. Extracting a portion of the data for each device ID stored in chronological order can be represented, for example, as table T1 shown in FIG. 3. Note that band data IDs A1 to A3 indicate the production amount and loss amount for each predetermined time period in the seasoning step, and band data IDs B1 to B3 indicate the production amount and loss amount for each predetermined time period in the preceding roasting step. In FIG. 3, for example, band data ID A1 indicates that 10 kg was produced in the seasoning step from 10:02:00 to 10:02:59, of which 8 kg was input to the combination weighing device 1, and 2 kg was lost during the production of the 10 kg.

[0027] In the following description, one processing step will be referred to as a "seasoning step," and the preceding step will be referred to as a "roasting step." In this case, the production volume of the roasting step shown in FIG. 3 corresponds to the input volume to the seasoning step. Specifically, the production volume in time slot B1 in the roasting step is the input volume of the input material input from the roasting step in time slot A1 in the seasoning step. Similarly, the production volume in time slot B2 in the roasting step is the input volume of the input material input from the roasting step in time slot A2 in the seasoning step, and the production volume in time slot B3 in the roasting step is the input volume of the input material input from the roasting step in time slot A3 in the seasoning step. Based on this relationship, the acquisition unit 41 acquires the input volume of the input material input from the roasting step in the seasoning step, the production volume in the seasoning step of the product produced based on the input material, and the amount of loss occurring during the production, divided into predetermined time slots. In the following, in this embodiment, an example will be described in which the roasting process of the cereal food is carried out within one minute from 10:00:00 to 10:00:59.

[0028] The history management device 4 uses the end or interruption of production in the manufacturing line 100 as a trigger (in other words, the production volume in the target processing process becoming zero) to identify the chronological connection between the amount of material input from the roasting process to the seasoning process (production volume in the roasting process) and the production volume and loss volume in the seasoning process.

[0029] The identification unit 42 identifies the connection between the input amount from the roasting process and the production amount and loss amount in the seasoning process for each time period by chronologically assigning the most recent time-series production amount and loss amount in the seasoning process (one processing process) stored in the first storage unit 44 back in time to the input amount from the roasting process (previous process) that supported that production amount and loss amount. For example, suppose that the input amount input from the roasting process to the seasoning process in the time period from a predetermined time before the end of production to the end of production (the most recent time period) in the roasting process is 3 kg, and when the seasoning process that received it finishes processing it and ends production, the sum of the production amount in the last time period in the seasoning process and the loss amount that occurred at that time is 10 kg. This means that 7 kg of input material from the roasting process in the previous time period had already been input into the seasoning process in the time period when 3 kg was input.

[0030] Furthermore, it is possible to identify the time period in the roasting process during which these 7 kg were input to the seasoning process. In this way, using the most recent time period immediately before the end of production as the base point, it is possible to identify the connection between materials between previous and subsequent processes as a time-divided, coherent quantity based on the relationship between the input amount to one processing process and the production amount and loss amount in that processing process produced based on that input amount. In this way, by tracing back the connection between the input amount and the production amount and loss amount for each time period, it is possible to identify the time period in the preceding roasting process during which a product produced in a certain time period in the seasoning process was input to the seasoning process. Then, when the identification unit 42 has completed the allocation of whether the production volume and loss volume in the seasoning process for the time period immediately before the end of production, i.e., the most recent time period in the chronological order, are based on the input volume from the roasting process for the most recent time period in the preceding process (whether the production volume and loss volume in the seasoning process for the most recent time period in the chronological order are supported by the input volume from the roasting process for the most recent time period in the preceding process), it will assign, starting from the most recent input volume in the chronological order, the production volume and loss volume in the next most recent seasoning process to which the input volume from which time period in the roasting process that has not yet been assigned is based.

[0031] More specifically, the identification unit 42 identifies the connection between the input amount from the roasting process and the production amount and loss amount in the seasoning process by assigning the production amount and loss amount for each time period to the input amount of the previous process that supported it, starting from the production amount and loss amount for the most recent time period among the production amount and loss amount for each time period in the seasoning process (one processing process) stored in the first storage unit 44. The connection identified by the identification unit 42 is information that links the production amount and loss amount for each time period in the seasoning process with the input amount for each time period in the roasting process that is assigned from the production amount and loss amount.

[0032] The identification method in the identification unit 42 will be described in more detail with reference to Figures 3 to 5. Figure 4(A) is a bar graph illustrating the roasting process among the time series data shown in Figure 3, and Figure 4(B) is a bar graph illustrating the seasoning process among the time series data shown in Figure 3. The data for the most recent time period for the "seasoning process," which is one processing process, is A1 shown in Figure 4(B).

[0033] First, as shown in FIG. 5, in the first step, the identifying unit 42 chronologically assigns the production and loss amounts of the seasoning process A1, which is the most recent time period immediately before the end of production, to the input amounts of the most recent time period in the roasting process that supported those production and loss amounts. "Supporting the production and loss amounts of the seasoning process A1" refers to the input amounts from the roasting process (i.e., the production amount in the roasting process) that are the source of the production and loss amounts of the seasoning process A1. The identifying unit 42 sequentially assigns 10 kg, which is the combined weight of the production and loss amounts of the most recent time period in the seasoning process A1, to the input amounts from the roasting process that supported that 10 kg. In other words, the identifying unit 42 chronologically identifies the time period of the input amounts from the roasting process to which that 10 kg was input, based on the input amounts.

[0034] Here, the input amount (production amount) in the most recent time slot immediately before the end of production in the roasting process B1 was 3 kg. Therefore, subtracting the combined weight of the production amount and loss amount in the seasoning process A1 from the 3 kg input amount in the roasting process B1 results in a shortage of -7 kg (3 kg - 10 kg = -7 kg). If the subtraction results in a negative number, the identifying unit 42 determines that the production amount and loss amount in the seasoning process A1 are supported by the input amount in the time slot before the most recent time slot in the roasting process B1, and searches for the input amount in the roasting process B2, which is the next most recent time slot in the chronological order. If the subtraction results in 0, it determines that the production amount and loss amount in the seasoning process A1 supported the input amount in the roasting process B1, and proceeds to the second stage described below.

[0035] The input amount for the roasting process B2, which is the next most recent time period in the time series, is 13 kg, so if we subtract the 7 kg that was insufficient in the production of the seasoning process A1, the total becomes 6 kg (13 kg - 7 kg = 6 kg). Through the above processing, the identification unit 42 can identify the following relationship between the production amount and loss amount for the seasoning process A1. (1) The production and loss of the seasoning process A1 are supported by the inputs of the roasting process B1 and a part of the inputs of the roasting process B2. (2) The production volume of the roasting process B1 accounts for 30% of the production volume and loss volume of the seasoning process A1 (production volume of the roasting process B1 / production volume and loss volume of the seasoning process A1 = 3 / 10). (3) The production volume of the roasting process B2 accounts for 70% of the production volume and loss volume of the seasoning process A1 (production volume of the roasting process B2 / production volume and loss volume of the seasoning process A1 = 7 / 10).

[0036] By identifying the above (1) to (3), the identification unit 42 identifies the chronological (time period) connection between the input amount of materials from the roasting process to the seasoning process and the production amount and loss amount in the seasoning process.

[0037] After identifying the time slot for the roasting process for the seasoning process A1, which is the newest in the time series, the identification unit 42 then begins identifying the time slot for the roasting process for the newest in the time series. In the second step, the identification unit 42 chronologically assigns the input amounts of the roasting process that support the production and loss amounts of the seasoning process A2 to the production and loss amounts of the seasoning process A2, which is the next newest time slot for which the above identification has not been completed, by going back in time series. The identification unit 42 calculates the input amount from the roasting process that supported this 15 kg, which is the combined weight of the production and loss amounts of the seasoning process A2. Here, the identification unit 42 searches for input amounts of the roasting process that have not yet been assigned, starting with the input amount of the roasting process B2, which is the newest in the time series.

[0038] Here, the production amount of the roasting process B2 that is not assigned to the seasoning process A1 is 6 kg (13 kg - 7 kg = 6 kg). Therefore, subtracting the combined weight of the production amount and loss amount of the seasoning process A2 from the input amount of the roasting process B2, 6 kg, results in -9 kg (6 kg - 15 kg = -9 kg). If the subtraction results in a negative number, the identifying unit 42 determines that the input amount of the roasting process B2 does not support the production amount and loss amount of the seasoning process A2 (it is 9 kg short), and searches for the input amount of the roasting process B3, which is the next most recent time period in the time series. Note that if the subtraction results in 0, it determines that the production amount and loss amount of the seasoning process A2 support the input amount of the roasting process B2.

[0039] When the input amount for the roasting process B3, which is the next most recent time period in the time series, is searched for, the input amount for the roasting process B3 is 13 kg, so by subtracting 9 kg, which is the remaining weight of the combined weight of the production amount and loss amount for the seasoning process A2, the result is 4 kg (13 kg - 9 kg = 4 kg). Through the above processing, the identification unit 42 can identify that the following relationship exists between the production amount and loss amount for the seasoning process A2. (4) The production and loss of the seasoning process A2 are supported by a portion of the inputs to the roasting process B2 and a portion of the inputs to the roasting process B3. (5) The production volume of the roasting process B2 accounts for 40% of the production volume and loss volume of the seasoning process A2 (production volume of the roasting process B2 / production volume and loss volume of the seasoning process A2 = 6 / 15). (6) The production volume of the roasting process B2 accounts for 60% of the production volume and loss volume of the seasoning process A2 (production volume of the roasting process B3 / production volume and loss volume of the seasoning process A2 = 9 / 15).

[0040] By identifying the above (4) to (6), the identifying unit 42 identifies the chronological (time period) connection between the input amounts of materials from the roasting process to the seasoning process and the production amounts and losses in the seasoning process. The identifying unit 42 repeats this process in order up to the oldest seasoning process A3 in the chronological order (in this embodiment, the seasoning process in the time period of 10:00:00).

[0041] The management control unit 43 stores the connection between the time periods identified by the identification unit 42 as a history of the manufacturing process in the first storage unit 44 or the second storage unit 45 separate from the first storage unit 44. The first storage unit 44 or the second storage unit 45 stores information of the contents shown in (1) to (6) above. The record of such information may be text-based or may be a relational database. The second storage unit 45 is physically or logically partitioned from the first storage unit 44. The second storage unit 45 may be formed as a separate entity from the history management device 4 and may be provided so as to be able to communicate with it.

[0042] The effects of the history management device 4 of the above embodiment will be described. The history management device 4 of the above embodiment can identify the connection between the input material (the product produced in the roasting process) put into the seasoning process and the product produced by processing it, as discrete quantities in a time series. Thus, while it was previously thought that traceability between each processing step was impossible for products (intermediate products) processed from raw materials in the manufacturing process of confectionery and the like, this configuration makes it possible. As a result, traceability from raw materials to the final product is possible even for intermediate products before they are individually wrapped or packaged.

[0043] More specifically, in the history management device 4 of the above embodiment, the production amounts and loss amounts stored in the first memory unit 44 are allocated in reverse chronological order from the input amount of intermediate products that has not been allocated, starting from the input amount stored last in the chronological order, thereby making it possible to identify the relationship between the production amounts and loss amounts in the seasoning process and the input amount of intermediate products from the roasting process in chronological order starting from the most recent.

[0044] Furthermore, by having the identification unit 42 identify one processing step as a "weighing step in the combination weighing device 1" and the previous step as a "seasoning step" in the same manner as above, it becomes possible to track which bag the seasoned cereal food was placed in and which cardboard box it was packed in at which time period by combining this with a traceability system that uses the bag serial number.

[0045] In the history management device 4 of the above embodiment, the connection identified by the identifying unit 42 is information linking the production volume and loss volume for each time period in the seasoning process with the input volume for each time period in the roasting process to which the production volume and loss volume are assigned (specifically, the information (1) to (6) described above). This makes it possible to link, by simple calculation, that the production volume of the seasoning process in a certain time period is produced based on the intermediate products input from the roasting process to the seasoning process in that time period and the intermediate products input to the seasoning process in an earlier time period.

[0046] In the history management device 4 of the above embodiment, the input amount from the roasting process may be derived based on the production amount in the roasting process. In this configuration, the production amount in the roasting process can be easily calculated.

[0047] Although one embodiment has been described above, one aspect of the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the invention.

[0048] In the history management device 4 of the above embodiment, an example has been described in which the time period is divided into one-minute intervals, but this is not limiting. For example, the time period may be divided into 10-minute intervals, or may be set arbitrarily to 30 seconds, 30 minutes, or the like.

[0049] In the above embodiment and the above modified example, an example of applying the history management device 4 to the manufacturing process of cereal foods has been described, but it can also be applied to manufacturing lines that have manufacturing processes that generate intermediate products, such as confectioneries and frozen foods.

[0050] In the explanation of the history management device 4 of the above embodiment and the above modified example, an example has been given in which it is applied between a roasting process as a preceding process and a seasoning process as one processing process, but in the case of cereal foods, it can also be applied between consecutive processing processes, such as between a steaming process and a drying process, between a drying process and a pressing process, or between a pressing process and a roasting process. Also, in the raw material weighing process, by identifying the place of origin of the weighed raw materials, it is possible to link the final product to the place of origin. [Explanation of symbols]

[0051] 1...combination weighing device, 3...bag making and packaging device, 4...history management device, 5...seal inspection device, 6...weight inspection device, 7...foreign matter inspection device, 8...sorting device, 9...boxing device, 10...roasting device, 11...hot air supply device, 12...conveyor, 13...first weighing section, 14...second weighing section, 20...seasoning device, 21...spray drying device, 22...conveyor, 23...third weighing section, 24...fourth weighing section, 41...acquisition section, 42...identification section, 43...management control section (control section), 44...first memory section, 45...second memory section, 100...production line.

Claims

1. an acquisition unit that acquires, in a predetermined time period, the input amount of an input material input from a previous process in one process step when raw materials are made into a product through a plurality of process steps, the production amount in the one process step of a product produced based on the input material, and the amount of loss occurring due to production in the one process step; a first storage unit that stores the input amount for each time period acquired by the acquisition unit, and the production amount and loss amount for each time period; an identification unit that identifies a connection between the input amount from the previous process and the production amount and loss amount in the one processing process by assigning the production amount and loss amount for each time period, based on the production amount and loss amount for the most recent time period among the production amount and loss amount for each time period in the one processing process stored in the first storage unit, retroactively to the input amount of the previous process that supported the production amount and loss amount for each time period; a control unit that stores the connection between the time periods identified by the identification unit in the first storage unit or the second storage unit as a history of the manufacturing process, Manufacturing process history management device.

2. an acquisition unit that acquires, in a time series manner, the amount of input material input from a previous process in one process step when raw materials are made into a product through a plurality of process steps, the amount of product produced in the one process step based on the input material, and the amount of loss that occurs with the production in the one process step; a first storage unit that stores the time-series input amount, the time-series production amount, and the time-series loss amount acquired by the acquisition unit; an identification unit that identifies a connection between the input amount from the previous process and the production amount and loss amount in the one processing process by retroactively allocating the most recent time-series production amount and loss amount among the time-series production amounts and loss amounts in the one processing process stored in the first storage unit to the input amount from the previous process that supported the most recent time-series production amount and loss amount; a control unit that stores the chronological connection identified by the identification unit as a history of the manufacturing process in the first storage unit or the second storage unit.

3. 3. The manufacturing process history management device according to claim 2, wherein, when the allocation of the production volume and loss volume in the one processing process most recent in time series to the input volume from the previous process is completed, the identification unit allocates the production volume and loss volume in the one processing process most recent in time series to the input volume from the previous process that has not yet been allocated, in reverse chronological order.

4. 4. A manufacturing process history management device according to claim 1, wherein the connection identified by the identification unit is information linking the production volume and loss volume for each time period in the one processing process with the input volume for each time period in the previous process that is assigned to the production volume and the loss volume.

5. 4. The manufacturing process history management device according to claim 1, wherein the input amount from the previous process is derived based on the production amount in the previous process.

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