Real-time weighing quantitative packaging control system, method and device

Abstract

This case discloses a real-time weighing quantitative packaging control system, method and device to solve the time-consuming and labor-intensive manual operation of constantly stopping and starting the machine in the product packaging process; the replacement of storage containers must be visually judged by employees, which can neither control the product weight nor accurately calculate the inventory data. The packaging system in this case has a feeding section, a packaging section, a discharging section and a loading section. The loading section is equipped with a quantitative real-time weighing device for the carrying container, and the dynamic reading of the weighing device is achieved through an electrically connected control system. When the product falls or slides from the outlet of the packaging section into the loading container, the control system takes interval readings of the weighing device. When the continuous readings reach the predetermined full frame weight, it determines that the loading container is full and stops delivering products to the loading container. When the control system continues to take interval readings of the weighing device and the continuous readings are within the predetermined empty frame weight range, it resumes delivering products to the loading container.

Description

Technical Field

[0001] The present invention relates to the field of product quantitative packaging control technology, and in particular to a real-time weighing quantitative packaging control system, method, and device, which are used to solve the current practical problems of high labor consumption, low production efficiency, and high production costs in the process of automated product packaging production. Background Art

[0002] Product packaging is an essential component of many production lines. Some fruit products, such as lemons, are currently wrapped in fresh-keeping bags during cold storage to enhance freshness, extend shelf life, and prevent rotting fruit from ripening and harming surrounding produce. Currently, the bagging process for fresh fruit is evolving from manual to automated. Most processing companies utilize vertical or horizontal packaging units, with product storage containers, either loading racks or plastic containers, positioned below the packaging unit's exit. These containers must be filled with packaged product before being replaced with empty ones before processing can resume.

[0003] The practical technical problems in this production and processing flow are: in the product bagging process, each time the product storage container is replaced, the machine needs to be manually stopped. After the empty container is replaced, the machine can be manually restarted to run the production process. When to replace the storage container needs to be judged visually, so employees need to patrol the production line at any time. However, visual inspection cannot control the exact weight of the product loaded in the storage container each time, which causes great trouble for subsequent inventory calculations.

[0004] In addition, during the harvest season, when products are in high demand, product processing plants need to conduct continuous inspections and frequently shut down and start up machines manually when producing on a large scale. This consumes a large amount of man-hours and causes congestion and disorder on the production site. At the same time, since the framing measurement is determined by manual visual judgment, the difference in framing weight is uncontrollable, and the product inventory weight data cannot be accurately calculated, causing the owner to be passive and suffer losses during the operation and sales process.

[0005] Clearly, there's still room for improvement in current product packaging systems. Metering issues should be addressed simultaneously to achieve quantitative packaging, while automated control of the packaging process should be implemented to improve efficiency and reduce the impact of downtime on the packaging process. Therefore, a more reasonable technical solution is needed to address the technical issues currently encountered. Summary of the Invention

[0006] In order to overcome at least one of the defects mentioned above, the present invention proposes a real-time weighing quantitative packaging control system, method and device, which realizes synchronous metering of the packaging process by controlling and adjusting the packaging process, and avoids the impact of frequent shutdowns on the efficiency of the packaging process.

[0007] In order to achieve the above objectives, the control system disclosed in the present invention can adopt the following technical solutions:

[0008] A real-time weighing quantitative packaging control system includes a transmission device and a packaging unit. A real-time weighing device for carrying a packaged product container is installed below the packaged product outlet of the packaging unit. The control system of the packaging unit reads the weighing reading of the real-time weighing device at regular intervals through an electrical connection.

[0009] The working principle of this real-time weighing quantitative packaging control system is as follows:

[0010] The product is conveyed to the product entrance of the packaging department through the transmission device, bagged and packaged by the packaging department, and then falls / slides into the loading container from the packaging department exit. The packaging department control system reads the real-time weighing device at regular intervals. If the consecutive set readings reach the predetermined full frame weight, the packaging department control system determines that the product loading container is full and suspends the delivery of products to the loading container; the control system continues to operate and reads the real-time weighing device at regular intervals until the consecutive set readings are all within the predetermined empty frame weight range, and then continues to deliver products to the loading container.

[0011] The packaging department must set the reading time interval of the real-time weighing device, the predetermined full frame weight, and the predetermined empty frame weight before the equipment is started.

[0012] Furthermore, to adapt to large-scale production, the real-time weighing quantitative packaging control system can be combined with the bagging packaging line to form a larger-scale real-time weighing quantitative packaging production control system and achieve non-stop production. The principle is as follows:

[0013] Products are transported via conveyor belts to multiple fresh fruit conveyor devices in the packaging department. Each conveyor device delivers the products to the product entrance of each packaging department, where they are bagged and packaged. From the packaging department's exit, the products drop / slide onto the bagged fruit conveyor belt. All bagged fruit are then transported via the bagged fruit conveyor belt to the frame conveyor belt. A real-time weighing device is located beneath each end of the frame conveyor belt, and the product containers are placed on the real-time weighing devices. The frame conveyor belt's control system periodically reads the weight readings of the two real-time weighing devices through an electrical connection. When multiple consecutive real-time weighing readings of a frame position are within the predetermined empty frame weight range, the control system marks the frame position as ready. If both frames are ready, the control system directs the framing conveyor belt to prioritize delivering fruit to frame position 1. If only one frame position is ready, the control system directs the framing conveyor belt to deliver fruit to the ready frame position. During the fruit delivery process, if the real-time weighing readings of the fruit delivery frame position exceed the predetermined full frame weight multiple times in a row, the control system directs the framing conveyor belt to reverse direction and deliver fruit to the next ready frame position. An external force is used to replace the full-frame product loading container. During the frame replacement, the control system continues to operate, taking readings of the real-time weighing device of the frame replacement position at regular intervals until the consecutive set readings are within the predetermined empty frame weight range, at which point the control system marks the frame position as ready. The above process enables continuous conveying, continuous packaging, and continuous framing without stopping. For large-scale product bagging and packaging automation, it can significantly improve efficiency, reduce labor consumption, and lower production costs.

[0014] The above content describes the packaging control system. The present invention also provides a packaging control method. As described below:

[0015] A real-time weighing quantitative packaging control method comprising:

[0016] Several packaging paths are used to package the products separately and transport the packaged products to the loading container. The products are weighed simultaneously when entering the loading container.

[0017] Set a starting weight value and an upper limit weight value, continuously weigh the total weight of the loading container, and compare the total weight of the loading container with the starting weight value and the upper limit weight value. When the total weight measured for the set number of consecutive times is greater than or equal to the starting weight value, deliver the product to the loading container. When the total weight measured for the set number of consecutive times reaches the upper limit weight value, stop delivering the product to the loading container. When a spare loading container is provided, switch to delivering the product to the spare loading container.

[0018] The packaging control method disclosed above detects the weight of the loading container and can realize quantitative delivery of products by weighing during the packaging process, which is convenient for improving the controllability and standardization of the weighing process. At the same time, reminders are given based on automatic weighing to facilitate timely turnover and improve the efficiency of the weighing process.

[0019] Furthermore, in the method provided by the present invention, the configuration of the product conveying path is not limited to a single one and can be configured through various configuration methods. Here, an optimization is proposed and one feasible option is proposed: each packaging path can independently convey products, or multiple packaging paths can collectively convey products. When independently conveying products, a loading container is provided for each packaging path, and a weighing device is placed below the loading container for weighing. When collectively conveying products, each packaging path is centrally conveyed after packaging and transported to a centralized loading container. A weighing device is placed below the centralized loading container for weighing. When such a solution is adopted, multiple packaging paths can be centrally conveyed through centralized conveying, which can greatly improve the efficiency of product conveying.

[0020] Furthermore, the arrangement of centralized loading containers is not strictly limited. Here, we propose an optimization and feasible option: the centralized loading container may be located at one or more locations. When multiple centralized loading containers are located, a weighing device is installed beneath each centralized loading container. After centralized transportation, products are then distributed and transported to the corresponding centralized loading container. In this solution, when a centralized loading container reaches the upper weight limit after weighing, loading is stopped, and products do not enter this centralized loading container after centralized transportation. When the total weight of the centralized loading container is less than the upper weight limit and greater than or equal to the starting weight after weighing, the products can re-enter the centralized loading container after centralized transportation.

[0021] The present invention also provides a packaging control device for implementing the packaging method proposed by the above system and method, which is described below:

[0022] A real-time weighing quantitative packaging control device includes a loading part for conveying products, the loading part is connected to the packaging part and packages the products, a product unloading part and a corresponding loading part are arranged behind the packaging part, and the loading part is provided with a detachable loading container and a weighing device for weighing the loading container.

[0023] Furthermore, in the present invention, adjustments and optimizations are made to the conveying mechanism to improve conveying efficiency and avoid the impact of downtime. While the conveying mechanism is not limited to a single one, this optimization proposes one feasible option: a centralized conveying section is also included. The unloading section is provided at multiple locations along the centralized conveying section, which extends to the loading section and centrally conveys the products into a loading container. This solution allows products from multiple conveying sections to be collected and loaded into a single loading section.

[0024] Furthermore, to streamline the packaging process and achieve continuous loading and uninterrupted delivery during centralized delivery, we propose a feasible optimization solution: the loading section comprises several loading containers, each of which is connected to the centralized delivery section via a distribution conveyor structure. This distribution conveyor structure distributes the products from the centralized delivery section to the corresponding loading containers. This solution prevents the distribution conveyor structure from continuing to deliver to a loading container that has reached a set weight, thereby preventing the set weight from being exceeded and facilitating the maintenance of the desired loading quantity.

[0025] To further enhance the convenience of feeding, we propose a feasible optimization option: a centralized feeding unit, with the loading unit coordinated with it. This centralized feeding unit is equipped with a material separation mechanism that delivers the products to the loading unit separately. This solution can improve the automation and efficiency of feeding.

[0026] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in the present invention include:

[0027] The present invention realizes automatic real-time measurement of product conveying and loading by weighing the packaged products in real time, facilitates quantitative loading, thereby improving the accuracy and automation of product conveying and transshipment, avoiding the current errors in product loading, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of the device using a single loading part.

[0030] Figure 2 It is a schematic diagram of the top view of the device using a single feeding part.

[0031] Figure 3 It is a side view schematic diagram of the structure of a device using a single feeding part.

[0032] Figure 4 It is a schematic diagram of the front structure of a device using a single feeding part.

[0033] Figure 5 It is a schematic diagram of the overall structure of a device using multiple feeding parts.

[0034] Figure 6It is a schematic diagram of the top view of the structure of a device using multiple feeding parts.

[0035] Figure 7 It is a schematic diagram of the front structure of a device using multiple feeding parts.

[0036] Figure 8 It is a side view schematic diagram of the structure of a device using multiple feeding parts.

[0037] Figure 9 Schematic diagram of the overall structure of the weighing device.

[0038] Figure 10 It is a schematic diagram of the front structure of the weighing device.

[0039] Figure 11 It is a side view structural diagram of the weighing device.

[0040] In the above drawings, the meanings of the various reference numerals are as follows:

[0041] 1. Loading section; 2. Packaging section; 3. Unloading section; 4. Loading container; 5. Weighing device; 501. Weighing section; 502. Connecting section; 6. Alarm device; 7. Centralized feeding section; 701. Material distribution mechanism; 8. Centralized conveying section; 9. Distribution and conveying structure. DETAILED DESCRIPTION

[0042] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0043] In view of the low efficiency, inaccurate measurement and excessive reliance on manual labor of existing packaging systems, the following embodiments are optimized to overcome the defects in the prior art.

[0044] Example 1

[0045] like Figures 1 to 11 As shown, the real-time weighing quantitative packaging control system provided in this embodiment includes a product transmission device, a loading part 1, an ultra-thin packaging film vertical packaging part 2, a product outlet of the packaging part 2, a loading part for loading a container 4 below the product outlet, a quantitative real-time weighing device 5 that supports the loading part, and a control system of the packaging part 2, which controls the operation and dynamic readings of the quantitative real-time weighing device 5 through electrical connections.

[0046] When applied to the packaging operation of products such as lemons, the working principle of the packaging system is as follows: the lemons are conveyed to the top of the packaging section 2 through the feeding section 1, and after being packaged in fresh-keeping bags by the packaging section 2, they fall from the outlet of the packaging section 2 into the loading section below. The control system of the packaging section 2 reads the weighing readings of the weighing device 5 in real time every 3 seconds. If the readings are greater than the preset full box weight for three consecutive times, the full box weight can be set to 380 kg in this embodiment; the control system of the packaging section 2 issues a command, the packaging section 2 automatically stops, and the signal light or alarm light flashes to remind the staff to replace the loading container 4. During the replacement of the loading container 4, the control system of the packaging section 2 continues to read at 3-second intervals until the staff replaces the empty box. After the readings are within the preset empty box weight allowable range for three consecutive times, the empty box weight allowable range is set to 30 kg to 40 kg in this embodiment, the control system issues a command to start the packaging section 2.

[0047] The technical solution disclosed in this embodiment solves the problem of quantitative framing during the packaging process of product storage freshness bags, and also solves the problem of manually stopping and starting the machine to replace the loading container 4 during the packaging process. The use and promotion of this invention in production can greatly improve the degree of automation in the production of product freshness bags, reduce labor consumption, improve production efficiency, and reduce production costs. Furthermore, the use and promotion of this invention can also improve the standardization of product storage framing, lay the foundation for warehousing standardization, and provide accurate and detailed warehousing data for business owners to participate in market competition.

[0048] Example 2

[0049] The content of Example 1 describes the packaging control system. This example also provides a packaging control method.

[0050] This embodiment provides a real-time weighing quantitative packaging control method, including:

[0051] Several packaging paths are used for packaging respectively, and the packaged products are transported to the loading container 4. The products are weighed synchronously when entering the loading container 4;

[0052] Set a starting weight value and an upper limit weight value, continuously weigh the total weight of the loading container 4, and compare the total weight of the loading container 4 with the starting weight value and the upper limit weight value. When the total weight measured for the set number of consecutive times is greater than or equal to the starting weight value, deliver the product to the loading container 4. When the total weight measured for the set number of consecutive times reaches the upper limit weight value, stop delivering the product to the loading container 4. When a spare loading container 4 is provided, switch to delivering the product to the spare loading container 4.

[0053] The packaging control method disclosed above detects the weight of the loading container 4 and can realize quantitative delivery of products by weighing during the packaging process, which is convenient for improving the controllability and standardization of the weighing process. At the same time, reminders are given based on automatic weighing, which facilitates timely turnover and improves the efficiency of the weighing process.

[0054] In the method provided in this embodiment, the configuration of the product conveying paths is not strictly limited and can be configured in a variety of ways. This embodiment optimizes and adopts one feasible option: each packaging path can independently convey products, or multiple packaging paths can be centrally conveyed. When independent product conveying is performed, a loading container 4 is provided for each packaging path, and a weighing device 5 is installed below the loading container 4 for weighing. When centralized packaging is performed, each packaging path is centrally conveyed after packaging and transported to the centralized loading container 4. A weighing device 5 is installed below the centralized loading container 4 for weighing. When this solution is adopted, multiple packaging paths can be centrally conveyed through centralized conveying, which can greatly improve the efficiency of packaging conveying.

[0055] The arrangement of centralized loading containers 4 is not strictly limited. This embodiment optimizes and adopts one feasible option: the centralized loading containers 4 may be located at one or more locations. When multiple centralized loading containers 4 are located, a weighing device 5 is installed beneath each centralized loading container 4. After centralized transportation, products are then distributed and transported to the corresponding centralized loading container 4. In this arrangement, loading is stopped when a centralized loading container 4 reaches the upper limit weight value after weighing, and products will not enter this centralized loading container 4 after centralized transportation. When the total weight of this centralized loading container 4 is less than the upper limit weight value and greater than or equal to the starting weight value after weighing, products can re-enter this centralized loading container 4 after centralized transportation.

[0056] Example 3

[0057] This embodiment also provides a packaging control device for implementing the packaging method proposed by the above system and method.

[0058] like Figures 1 to 8 As shown, this embodiment discloses a real-time weighing quantitative packaging control device, including a loading part 1 for conveying products, the loading part 1 is connected to the packaging part 2 and packages the products, and a product unloading part 3 and a corresponding loading part are provided behind the packaging part 2, and the loading part is provided with a detachable loading container 4 and a weighing device 5 for weighing the loading container 4.

[0059] Preferably, Figures 9 to 11As shown, the weighing device 5 used in this embodiment includes two elongated weighing parts 501 arranged opposite to each other, and a connecting part 502 connecting the weighing parts 501, and the connecting part 502 and the weighing part 501 form a U-shaped structure. In other embodiments, the connecting part 502 and the weighing part 501 can also form an H-shaped structure or a U-shaped structure.

[0060] In this embodiment, the conveying mechanism is adjusted and optimized to improve the efficiency of conveying and avoid the impact of downtime. The conveying mechanism is not limited to a single one. This embodiment optimizes and adopts one of the feasible options: Figures 5 to 8 As shown, it also includes a centralized conveying section 8. The unloading section 3 is provided with several centralized conveying sections along the centralized conveying section 8. The centralized conveying section 8 extends to the loading section and centrally conveys the products into the loading container 4. When such a solution is adopted, products from multiple conveying sections can be collected and loaded through a single loading section.

[0061] Preferably, in this embodiment, the centralized conveying section 8 adopts a conveyor belt, and the products of each loading section 1 are placed on the conveyor belt and transported to the end along the conveyor belt for unified weighing and boxing.

[0062] During centralized transportation, in order to make the entire packaging process smoother and achieve non-stop continuous transportation and loading, this embodiment is optimized and adopts one of the feasible options: Figures 5 to 8 As shown, the loading section includes several loading containers 4, and the centralized conveying section 8 is connected to each of the loading containers 4 via a distribution conveying structure 9. The distribution conveying structure 9 is used to distribute the products of the centralized conveying section 8 to the corresponding loading containers 4. With this solution, the distribution conveying structure 9 avoids continuing to deliver to a loading container 4 that has reached a set weight, thereby preventing the set weight from being exceeded and facilitating the maintenance of the quantitative requirements during the loading process.

[0063] Preferably, in this embodiment, two loading containers 4 are provided, which are loaded and weighed respectively, and the distribution and conveying structure 9 adopts a reciprocating structure. When the distribution and conveying structure 9 is running in the forward direction, the product is conveyed to the loading container 4 on the left. When the loading container 4 on the left reaches the set weight, the alarm device 6 issues an alarm; at this time, the distribution and conveying structure 9 reverses and conveys the product to the loading container 4 on the right; at the same time, the fully loaded loading container 4 on the left is removed and replaced with an empty loading container 4 to the left. When the loading container 4 on the right is full, it switches to conveying the product to the left. Such a cyclic operation can achieve non-stop operation, greatly improving the efficiency of product packaging.

[0064] In order to improve the convenience of feeding, this embodiment is optimized and adopts one of the feasible options: Figures 5 to 8As shown, it also includes a centralized feeding part 7, and the loading part 1 cooperates with the centralized feeding part 7; the centralized feeding part 7 is provided with a material dividing mechanism 701 and conveys the products to the loading part 1 respectively. When such a solution is adopted, the degree of automation and efficiency of feeding can be improved.

[0065] Preferably, the centralized feeding section 7 can adopt a conveyor belt structure, and the dividing mechanism 701 includes a dividing rod arranged at the conveyor belt structure. Each loading section 1 corresponds to a dividing rod, and as the conveyor belt structure moves in the direction of travel, the length of the dividing rod of each loading section 1 increases successively.

[0066] The several implementation methods proposed in this plan lay the foundation for the deep automation transformation or application of AGV unmanned forklift handling in factories.

[0067] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods based on the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the scope of protection of this embodiment. The scope of protection of this embodiment should be based on the definition in the claims.

Claims

1. A real-time weighing quantitative packaging control device, characterized by: The invention comprises a feeding part (1) for conveying products, the feeding part (1) is connected to a packaging part (2) and packages the products, a product unloading part (3) and a corresponding loading part are provided behind the packaging part (2), and the loading part is provided with a detachable loading container (4) and a weighing device (5) for weighing the loading container (4); It also includes a centralized feeding section (7), and the loading section (1) cooperates with the centralized feeding section (7); a material distribution mechanism (701) is provided on the centralized feeding section (7) and transports the products to the loading section (1) respectively; The material distribution mechanism (701) comprises a plurality of material distribution levers, each feeding portion (1) corresponds to a material distribution lever, and along the conveying direction of the centralized feeding portion, the length of the material distribution lever of each feeding portion (1) increases sequentially; The weighing device (5) is located below the product outlet of the packaging unit (2), and the control system of the packaging unit (2) controls the continuous operation and dynamic reading of the weighing device (5) through electrical connection; The product falls or slides from the outlet of the packaging part (2) into the loading container (4). The control system of the packaging part (2) reads the weighing device (5) at regular intervals. If the number of consecutive readings reaches a predetermined full-frame weight, the control system of the packaging part (2) determines that the loading container (4) is full and stops conveying the product to the loading container. The control system continues to operate and read the weighing device (5) until the number of consecutive readings is within the predetermined empty-frame weight range, and then continues conveying the product to the loading container. Before the equipment is turned on, the reading time interval, the predetermined full box weight, and the predetermined empty box weight of the weighing device (5) are set through the control system of the packaging unit (2); The loading portion is further provided with a spare loading container (4) and a weighing device (5) for weighing the spare loading container.

2. The real-time weighing quantitative packaging control device according to claim 1, characterized in that: It also includes a centralized conveying section (8), the unloading section (3) is provided with several locations along the centralized conveying section (8), and the centralized conveying section (8) extends to the loading section and centrally conveys the products into the loading container (4).

3. The real-time weighing quantitative packaging control device according to claim 2, characterized in that: The loading section includes a plurality of loading containers (4), and the centralized conveying section (8) is connected to the loading containers (4) respectively through a distribution conveying structure (9). The distribution conveying structure (9) is used to distribute the products of the centralized conveying section (8) to the corresponding loading containers (4).

4. A real-time weighing quantitative packaging control method, using the control device according to any one of claims 1 to 3, characterized in that: include: Several packaging paths provided with the packaging section (2) and the loading section (1) respectively perform packaging and transport the packaged products to the loading container (4), and the products are weighed synchronously when entering the loading container (4); A starting weight value and an upper limit weight value are set, the total weight of the loading container (4) is weighed continuously, and the total weight of the loading container (4) is compared with the starting weight value and the upper limit weight value. When the total weight measured for the set number of times is greater than or equal to the starting weight value, the product is delivered to the loading container (4); when the total weight measured for the set number of times reaches the upper limit weight value, the product is stopped from being delivered to the loading container (4), and the product is delivered to the spare loading container (4).

5. The real-time weighing quantitative packaging control method according to claim 4, characterized in that: Each packaging path is used to transport products individually or multiple packaging paths are used to transport products collectively. When transporting products individually, a loading container (4) is provided for each packaging path and a weighing device (5) is provided below the loading container (4) for weighing. When transporting products collectively, each packaging path is used to transport products collectively after completing packaging and transport them to the centralized loading container (4). A weighing device (5) is provided below the centralized loading container (4) for weighing.

6. The real-time weighing quantitative packaging control method according to claim 5, characterized in that: The centralized loading container (4) may be one or more centralized loading containers. When multiple centralized loading containers (4) are provided, a weighing device (5) is provided below each centralized loading container (4); the products are transported in a centralized manner and then transported to the corresponding centralized loading container (4) through distribution.

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