Fruit and vegetable counterweight detection method

Abstract

The invention discloses a fruit and vegetable counterweight detection method which comprises the following steps: placing a weighing unit on a single fruit conveying unit to obtain a preset single fruit weight; the multiple first sorting units are arranged on the side edge of the single fruit conveying unit. Wherein the plurality of first sorting units correspond to a plurality of preset single fruit weights and preset single part weights respectively; the upper cover body movably covers the first opening, and the lower cover body movably covers the second opening. The single fruit conveying unit ensures one-by-one and stable conveying of fruits and vegetables, a control basis is provided for weighing and sorting steps, and the sorting accuracy is improved. The weighing unit weighs each passing fruit and vegetable and records the weight of each fruit and vegetable. The weighing unit can accurately obtain the weight information of each fruit and vegetable. When the weighing units detect fruits and vegetables meeting the preset single fruit weight, the fruits and vegetables can be conveyed into the corresponding first sorting units. The first sorting unit classifies and collects fruits and vegetables according to the weight of the fruits and vegetables, and it is ensured that the fruits and vegetables with the same weight are classified together.

Description

Technical Field

[0001] The invention relates to the technical field of weight detection, and in particular to a method for detecting the weight of fruits and vegetables. Background Art

[0002] In the field of modern agricultural product processing and logistics, the inspection, grading and packaging of fruits and vegetables are important links to achieve efficient circulation and value-added. Traditionally, the process from picking to selling fruits and vegetables in the market often relies on manual sorting, weighing and packaging. This process is not only inefficient, but also difficult to ensure the accuracy of sorting and the standardization of packaging. With the development of automation technology, the market demand for fruit and vegetable processing lines is growing, which can improve processing efficiency, reduce labor costs, and ensure the consistency and safety of fruit and vegetable quality through mechanized means.

[0003] In the traditional fruit and vegetable processing process, fruits and vegetables are first collected together, then manually selected and weighed one by one, and then classified according to different weight or quality standards, and finally packaged. This process is cumbersome and time-consuming, especially when handling large quantities of fruits and vegetables, the fatigue and error rate of manual operation will increase significantly. In addition, due to the wide variety of fruits and vegetables, and their different sizes and shapes, manual sorting is often difficult to achieve a high degree of accuracy and consistency, affecting the market competitiveness of the products.

[0004] Furthermore, in the existing sorting process, fruits and vegetables are usually identified visually. However, in the existing technology, only a certain link is automated and cannot be linked. That is, the fruits are only sorted according to their quality and cannot be sorted by weight. At the same time, the packaging machine cannot be linked for automatic packaging. It only meets the local operations of some SKU products, and it is easy to cause bumps and scratches during fruit and vegetable processing. Summary of the invention

[0005] In view of the above problems, the present application provides a method for detecting the weight of fruits and vegetables, which can sort the good and bad weights of fruits and vegetables and avoid damage to the fruits and vegetables during the sorting process.

[0006] To achieve the above purpose, the present application provides a method for detecting the weight of fruits and vegetables, comprising the steps of:

[0007] Drive the single fruit conveying unit to convey fruits and vegetables in sequence;

[0008] Drive the weighing unit to weigh each fruit and vegetable in turn and record the weight of each fruit and vegetable;

[0009] There are multiple first sorting units, and the multiple first sorting units are placed on the side of the single fruit conveying unit. The multiple first sorting units correspond to multiple preset single fruit weights and preset single portion weights respectively; when the weight of a single fruit or vegetable reaches the preset single fruit weight of a first sorting unit, the single fruit or vegetable falls into the corresponding first sorting unit;

[0010] When the accumulated weight reaches a preset single-serving weight, the upper cover of the first sorting unit moves to avoid an increase in the weight of a single-serving fruit and vegetable; and the lower cover of the first sorting unit moves to open the second opening of the first sorting unit, so that fruits and vegetables reaching the preset single-serving weight fall down.

[0011] The technical solution of the embodiment of the present application also includes the steps of:

[0012] The visual inspection unit located on the single fruit conveying unit is driven to inspect the passing fruits and vegetables in sequence to record the quality of each fruit and vegetable.

[0013] In the technical solution of the embodiment of the present application, after the step of driving the visual detection unit located on the single fruit conveying unit to sequentially detect the passing fruits and vegetables, the following steps are also included:

[0014] The second sorting unit is placed at one side of the single fruit conveying unit, and when the visual inspection unit detects damaged fruits and vegetables, the damaged fruits and vegetables fall into the second sorting unit.

[0015] The technical solution of the embodiment of the present application also includes the steps of:

[0016] When the total weight of fruits and vegetables in the first sorting unit reaches a preset single portion weight, the lower cover is opened, the fruits and vegetables fall onto the connecting conveying unit below the second opening of the first sorting unit, and the upper cover is closed.

[0017] In the technical solution of the embodiment of the present application, when the lower cover is opened, the connecting and conveying unit is started synchronously to move the falling fruits and vegetables.

[0018] In the technical solution of the embodiment of the present application, when the total weight of fruits and vegetables in the first sorting unit reaches a preset single portion weight, the connecting conveying unit is synchronously started to move the falling fruits and vegetables.

[0019] In the technical solution of the embodiment of the present application, each of the connecting and conveying units receives a plurality of fruits and vegetables output by the first sorting units;

[0020] When the second opening of one first sorting unit is opened, the second openings of the other first sorting units are in a closed state.

[0021] In the technical solution of the embodiment of the present application, each of the connecting conveying units is connected to the output ends of the two first sorting units.

[0022] The technical solution of the embodiment of the present application also includes the step of: when the lower cover is opened, the upper cover is closed, and the single fruit conveying unit continues to transport fruits and vegetables to the first sorting unit.

[0023] Different from the prior art, in the above technical solution, the V-shaped single fruit conveying unit ensures the one-by-one and stable conveying of fruits and vegetables, provides a precise control basis for the subsequent weighing and sorting steps, and improves the accuracy and efficiency of sorting. The weighing unit is used to weigh each fruit and vegetable that passes through and record the weight of each fruit and vegetable. The weighing unit can accurately obtain the weight information of each fruit and vegetable, provide data support for sorting single fruits, and ensure the quality control and accuracy of the product. When the weighing unit detects fruits and vegetables that meet the preset single fruit weight, the fruits and vegetables will be transported to the corresponding first sorting unit. The first sorting unit classifies and collects the fruits and vegetables according to their weight, ensuring that fruits and vegetables of the same weight are classified together, which provides convenience for subsequent packaging, and also improves the quality and consistency of the product. Thereby improving the packaging and detection efficiency of the assembly line.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0026] Figure 1 A top view of a fruit and vegetable inspection line according to a specific implementation method Figure 1 ;

[0027] Figure 2 A top view of a fruit and vegetable inspection line according to a specific implementation method Figure 2 ;

[0028] Figure 3 A side view of a fruit and vegetable detection line described in a specific implementation method Figure 1 ;

[0029] Figure 4 A side view of a fruit and vegetable detection line described in a specific implementation method Figure 2 ;

[0030] Figure 5 This is a structural diagram of the first sorting unit in a specific implementation manner;

[0031] Figure 6 for Figure 5 Sectional view at AA;

[0032] Figure 7It is a structural diagram of the first sorting unit and the connecting conveying unit in a specific implementation manner.

[0033] Figure 8 This is a structural diagram of the first sorting unit in a specific implementation manner.

[0034] Description of reference numerals:

[0035] 10. Single fruit conveying unit; 20. Weighing unit; 30. First sorting unit; 40. Connecting conveying unit; 50. Visual inspection unit; 60. Second sorting unit;

[0036] 31. upper cover body; 32. lower cover body; 33. containing frame;

[0037] 341. First chamber; 342. Second chamber. DETAILED DESCRIPTION

[0038] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0043] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0044] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0045] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0046] See also Figures 1 to 7 This embodiment provides a method for detecting the weight of fruits and vegetables, comprising:

[0047] A single fruit conveying unit 10, the single fruit conveying unit 10 is used to convey fruits and vegetables in sequence;

[0048] A weighing unit 20, which is placed on the single fruit conveying unit 10, and is used to weigh each fruit and vegetable in turn and obtain a preset single fruit weight;

[0049] A first sorting unit 30, wherein the first sorting units 30 are multiple, and the multiple first sorting units 30 are placed on the side of the single fruit conveying unit 10, and the first sorting unit 30 is used to receive fruits and vegetables dropped from the single fruit conveying unit 10; wherein the multiple first sorting units 30 correspond to multiple preset single fruit weights and preset single portion weights respectively;

[0050] The first sorting unit 30 includes: an upper cover 31, a lower cover 32 and a containing frame 33, wherein the containing frame 33 has a built-in containing cavity, a first opening and a second opening are formed on the containing frame 33, the first opening and the second opening are in communication with the containing cavity, the upper cover 31 is movably disposed on the first opening, and the lower cover 32 is movably disposed on the second opening;

[0051] Among them, when the weight of a single fruit and vegetable reaches a preset single fruit weight, the single fruit and vegetable falls into the corresponding first sorting unit 30; when the weight in the first sorting unit 30 reaches the preset single portion weight, the single fruit conveying unit 10 will stop transporting fruits and vegetables to the corresponding first sorting unit 30.

[0052] The cross section of the receiving surface of the single fruit conveying unit 10 for receiving fruits and vegetables is "V" shaped, and the single fruit conveying unit 10 supports the bottom of the fruits and vegetables. Specifically:

[0053] First, the single fruit conveying unit 10 comprises two symmetrically arranged first conveying belts, which are arranged at an angle to clamp the fruits and vegetables. The two first conveying belts run at the same speed to prevent the fruits and vegetables from being worn or rolled.

[0054] Secondly, the single fruit conveying unit 10 includes two symmetrically arranged limit plates and a second conveying belt, wherein the limit plates are arranged obliquely, the second conveying belt is placed between the limit plates, and the fruits and vegetables are placed on the second conveying belt. The limit plates are used to prevent the fruits and vegetables from falling, and the second conveying belt is used to move the fruits and vegetables.

[0055] Of course, in some implementations, the single fruit conveying unit 10 includes: a guide roller group and a chain plate; there are multiple guide roller groups, and the multiple guide roller groups are arranged along the chain plate array; the guide roller group includes: two symmetrically arranged rollers, the chain plate is placed between the two rollers, and the surface of the roller is inclined toward the chain plate. The fruits and vegetables are stably placed on the chain plate through the guide roller group.

[0056] Transporting fruits and vegetables one by one means transporting multiple fruits and vegetables one after another.

[0057] The weighing unit 20 is placed on the single fruit conveying unit 10, and is used to weigh each fruit and vegetable that passes through; specifically, the weighing unit 20 is placed below the single fruit conveying unit 10, and when the fruits and vegetables are driven by the single fruit conveying unit 10 to move above the weighing unit 20, the weighing unit 20 then weighs the individual fruits and vegetables and uploads the records.

[0058] The weighing unit 20 is an electronic weighing module. All fruits and vegetables passing through the electronic weighing module will exert pressure on the electronic weighing module, that is, the weight of the fruits and vegetables. At this time, the electronic weighing module will record this weight or send the value to the processor.

[0059] There are a plurality of the first sorting units 30, and the plurality of the first sorting units 30 are arranged in an array along the direction of the single fruit conveying unit 10, and the plurality of the first sorting units 30 are placed on one side of the single fruit conveying unit 10.

[0060] Each first sorting unit 30 corresponds to a preset single fruit weight and a preset single portion weight; the preset single fruit weight is the weight of a single fruit or vegetable, and the preset single portion weight is the weight of a plurality of fruits or vegetables packaged together; the preset single fruit weight and the preset single portion weight are both within a numerical range. That is, when the weighing unit 20 detects that the single fruit weight reaches the preset single fruit weight of a first sorting unit 30, the single fruit will be driven by the single fruit conveying unit 10 to move to the corresponding side of the first sorting unit 30 so as to fall into the accommodating frame 33 from its first opening; at this time, the second opening is closed. When the cumulative weight of the single fruits received by the first sorting unit 30 reaches the preset single portion weight corresponding to the first sorting unit 30, the first opening is closed and the second opening is opened to release the classified whole portion of fruits and vegetables.

[0061] Specifically, taking a first sorting unit 30 as an example, the preset single fruit weight corresponding to the first sorting unit 30 is 90-130g, and the corresponding preset single portion weight is 500-600g. When the weighing unit 20 detects that the single fruit weight reaches 90 to 130g, the single fruit is controlled to fall to the corresponding first sorting unit 30; when the weight in the first sorting unit 30 reaches 500-600g, the single fruit conveying unit 1020 will stop transporting fruits and vegetables to the corresponding first sorting unit 30.

[0062] It should also be noted that it also includes: a picking unit, and there are multiple picking units, and the multiple picking units correspond one to one with the multiple first sorting units 30. The picking unit is placed on the side of the single fruit conveying unit 10 away from the first sorting unit 30 to pick individual fruits and vegetables; specifically, after the fruits and vegetables are weighed and the weight of the single fruit is obtained, when the single fruit is moved to the corresponding first sorting unit 30, the picking unit picks the fruits and vegetables.

[0063] Furthermore, after obtaining the weight of a single fruit, the single fruit can be accurately placed in the corresponding first sorting unit 30 according to the moving speed or the number of detected single fruits; specifically, after obtaining the weight of a single fruit, the single fruit is marked, and according to the moving speed of the single fruit conveying unit 10 and the distance to the corresponding first sorting unit 30, it is calculated how long it takes for the single fruit to move to the side of the corresponding first sorting unit 30, and at the same time, the picking unit is started to pick the single fruit.

[0064] See also Figures 5 to 7 The first sorting unit 30 includes: an upper cover body 31, a lower cover body 32 and a containing frame 33, the containing frame 33 is provided with an upper cover body and a lower cover body, the upper cover body 31 is covered on the upper cover body, and the lower cover body 32 is covered on the lower cover body; fruits and vegetables enter into the containing frame 33 from the upper cover body, and fruits and vegetables move out of the containing frame 33 from the lower cover body.

[0065] The first sorting unit 30 includes a accommodating frame 33, wherein the accommodating frame 33 has a built-in accommodating cavity, and the accommodating cavity is connected to the first opening and the second opening. When fruits and vegetables enter the accommodating cavity from the first opening, the fruits and vegetables are temporarily stored in the accommodating cavity. When the preset single portion weight is reached, the first opening is closed to prevent the fruits and vegetables from entering, and the second opening is opened to transport the fruits and vegetables outward.

[0066] Different from the prior art, in the above technical solution, the V-shaped single fruit conveying unit 10 ensures the one-by-one and stable conveying of fruits and vegetables, provides a precise control basis for the subsequent weighing and sorting steps, and improves the accuracy and efficiency of sorting. The weighing unit 20 is used to weigh each fruit and vegetable that passes through and record the weight of each fruit and vegetable. The weighing unit 20 can accurately obtain the weight information of each fruit and vegetable, provide data support for sorting single fruits, and ensure the quality control and accuracy of the product. When the weighing unit 20 detects fruits and vegetables that meet the preset single fruit weight, the fruits and vegetables will be transported to the corresponding first sorting unit 30. The first sorting unit 30 classifies and collects fruits and vegetables according to their weight, ensuring that fruits and vegetables of the same weight are classified together, which provides convenience for subsequent packaging and also improves the quality and consistency of the product. Thereby improving the packaging and detection efficiency of the assembly line.

[0067] According to some embodiments of the present application, referring to Figures 5 to 7 The first opening and the second opening are respectively disposed on two opposite side walls of the accommodating frame 33, and the first opening and the second opening are disposed opposite to each other. The accommodating frame 33 is disposed inclined.

[0068] The inclined receiving frame 33 facilitates unloading of fruits and vegetables. Specifically, when the second opening is opened, the fruits and vegetables roll down along the inclined receiving cavity under the action of gravity.

[0069] Of course, in some embodiments, the accommodating frame 33 may also be arranged horizontally, and the fruits and vegetables may be transferred by a push or transport mechanism built into the accommodating frame 33 .

[0070] Further, the receiving frame 33 is a tubular structure with a hollow middle and openings at both ends, and the first opening and the second opening are openings at both ends of the receiving frame 33. Fruits and vegetables are loaded from the first opening and unloaded from the second opening.

[0071] According to some embodiments of the present application, referring to Figures 1 to 4 , and also includes: a visual inspection unit 50, the visual inspection unit 50 has a built-in inspection channel for the single fruit conveying unit 10 to pass through, the single fruit conveying unit 10 is placed in the inspection channel, and the visual inspection unit 50 is used to detect fruits and vegetables on the single fruit conveying unit 10.

[0072] The visual inspection unit 50 has a built-in inspection channel, and a partial section of the single fruit conveying unit 10 is placed in this inspection channel.

[0073] The visual inspection unit 50 generally includes a high-precision camera, an image processor, and corresponding control software. The camera is responsible for capturing the image of each fruit or vegetable on the single fruit conveying unit 10, while the image processor analyzes and processes these images quickly and accurately. The control software is responsible for coordinating the entire visual inspection process to ensure the accuracy and efficiency of the inspection.

[0074] The quality of fruits and vegetables can be detected based on the color contrast and color difference on the fruits and vegetables. Specifically, when the contrast and color difference on a certain area of ​​the fruits and vegetables are too large, or a dark color block suddenly appears in a certain area of ​​the fruits and vegetables, the fruits and vegetables can be judged as damaged fruits and vegetables.

[0075] The design of the inspection channel fully considers the characteristics and inspection requirements of fruits and vegetables, and has appropriate width and height to ensure that fruits and vegetables can pass smoothly without any obstruction. At the same time, the interior of the inspection channel is also equipped with appropriate lighting equipment to ensure that the camera can capture clear and bright images.

[0076] During the operation, first, driven by the single fruit conveying unit 10, the fruits and vegetables pass through the detection channel of the visual inspection unit 50 at a certain speed and spacing. When the fruits and vegetables enter the detection channel, the camera will immediately capture their images. Since the camera has high precision and high resolution, it can capture the subtle features and defects on the surface of fruits and vegetables. The captured image is transmitted to the image processor for further analysis and processing. The image processor uses advanced algorithms and technologies to identify, classify and judge the image. It can identify the type, size, shape, surface flaws and defects of fruits and vegetables. After analysis and processing, the image processor will feed back the results to the control system of the assembly line. The control system further sorts, processes or marks the fruits and vegetables based on this information. If the visual inspection unit 50 finds that the fruits and vegetables have flaws or defects, the control system will immediately trigger the corresponding sorting mechanism (such as the second sorting unit 60) to remove them from the assembly line. At the same time, for qualified fruits and vegetables, they continue to be weighed, sorted, connected and transported, grid transported and packaged along the assembly line.

[0077] By adding the visual inspection unit 50, comprehensive, rapid and accurate inspection of fruits and vegetables can be achieved. This can not only improve the quality and safety of fruits and vegetables, but also reduce manual intervention and production costs. At the same time, this design also makes the production line more intelligent and automated, and can adapt to the inspection needs of fruits and vegetables of different types and specifications.

[0078] According to some embodiments of the present application, referring to Figure 2 , further comprising: a second sorting unit 60; the second sorting unit 60 is placed on the side of the single fruit conveying unit 10, and the second sorting unit 60 is used to receive the damaged fruits and vegetables falling from the single fruit conveying unit 10;

[0079] When the visual inspection unit 50 detects damaged fruits and vegetables, the single fruit conveying unit 10 will transport the damaged fruits and vegetables to the second sorting unit 60 .

[0080] The second sorting unit 60 is used to receive and process the damaged fruits and vegetables dropped from the single fruit conveying unit 10 .

[0081] The second sorting unit 60 is a sorting mechanism with a receiving port. The receiving port is designed to correspond to the output end of the single fruit conveying unit 10 so as to accurately receive the damaged fruits and vegetables falling from the single fruit conveying unit 10. In some embodiments, the second sorting unit 60 has the same structure as the first sorting unit 30.

[0082] In order to ensure that the second sorting unit 60 can accurately receive and process the damaged fruits and vegetables, the control system of the production line needs to work closely with the visual inspection unit 50. When the visual inspection unit 50 detects damaged fruits and vegetables, it will immediately send a signal to the control system. After receiving this signal, the control system will immediately trigger the single fruit conveying unit 10 to convey the damaged fruits and vegetables to the receiving port of the second sorting unit 60.

[0083] Specifically, fruits and vegetables pass through the single fruit conveying unit 10. Driven by the single fruit conveying unit 10, the fruits and vegetables pass through the additional visual inspection unit 50 on the assembly line in turn. In this process, the visual inspection unit 50 will perform a detailed inspection on each fruit and vegetable to identify whether there is damage or defect. When the visual inspection unit 50 detects damaged fruits and vegetables, it will immediately send a signal to the control system of the assembly line. This signal contains information such as the location, type, and degree of damage of the damaged fruits and vegetables.

[0084] After receiving the signal from the visual inspection unit 50, the control system will immediately adjust the single fruit conveying unit 10. Specifically, the control system will control the conveying speed, direction, stop position and other parameters of the single fruit conveying unit 10 to ensure that the damaged fruits and vegetables can be accurately conveyed to the receiving port of the second sorting unit 60.

[0085] According to some embodiments of the present application, referring to Figure 2 and Figure 4 , further comprising: a connecting and conveying unit 40, wherein the connecting and conveying unit 40 is connected to the output end of the first sorting unit 30 and the connecting and conveying unit 40, and the connecting and conveying unit 40 is used to receive and convey the fruits and vegetables on the first sorting unit 30.

[0086] The connecting and conveying unit 40 receives the fruits and vegetables output by the lower cover body. Further, when the total weight of the fruits and vegetables in the first sorting unit 30 reaches a preset single weight, the lower cover body opens and the fruits and vegetables fall into the connecting and conveying unit 40. At the same time, the connecting and conveying unit 40 starts and moves the fruits and vegetables, and at the same time, the upper cover body 31 closes the upper cover body to prevent other fruits and vegetables from entering the accommodating frame 33.

[0087] It should be noted that the starting condition of the lower cover 32 and the connecting conveying unit 40 is that the total weight of the fruits and vegetables in the first sorting unit 30 reaches a preset single portion weight.

[0088] In this embodiment, four first sorting units 30 are taken as an example for description. There are four first sorting units 30, and the four first sorting units 30 are arranged side by side; there are two connecting and conveying units 40, and the output ends of the two connecting and conveying units 40 are arranged opposite to each other.

[0089] The four first sorting units 30 arranged side by side are numbered CHU02, CHU03, CHU04 and CHU05 from left to right, and the two connecting conveying units 40 are DB1-01 and DB1-02 from left to right; the connecting conveying unit 40 numbered DB1-01 takes over the first sorting units 30 numbered CHU02 and CHU03, and the connecting conveying unit 40 numbered DB1-02 takes over the first sorting units 30 numbered CHU04 and CHU05.

[0090] In actual operation, when the weight of fruits and vegetables in the first sorting unit 30 reaches the preset single portion weight, the sorting unit will stop conveying fruits and vegetables to the corresponding single fruit conveying unit 10, and trigger the connecting conveying unit 40 to start working. At this time, the connecting conveying unit 40 will take over the fruits and vegetables from the sorting unit and convey them to the next link.

[0091] Since each connecting conveying unit 40 can receive the first sorting units 30 from two alternately releasing fruits and vegetables, the fruits and vegetables can be processed and conveyed in parallel, which improves the processing capacity and efficiency of the assembly line.

[0092] According to some embodiments of the present application, when the weight in the first sorting unit 30 reaches a preset single-serving weight, the upper cover 31 moves to close the first opening to prevent fruits and vegetables from entering the accommodating cavity from the first opening; and the lower cover 32 moves to open the second opening to allow multiple fruits and vegetables reaching the preset single-serving weight to fall.

[0093] According to some embodiments of the present application, it also includes: a torque sensor, the detection end of the torque sensor is transmission-connected to the hinge between the lower cover body 32 and the containing frame 33 to detect the weight of a single serving of fruits and vegetables; the upper cover body 31 is hinged to the containing frame 33, and the lower cover body 32 is hinged to the containing frame 33.

[0094] First of all, it should be noted that the preset single portion weight corresponds to the preset torque value; for example, the preset single portion weight is 500-600g, and the corresponding preset torque value is 100-200N·m (Newton-meter). Since the accommodating frame 33 is arranged at an angle, the fruits and vegetables falling into the accommodating cavity will accumulate on the second opening and exert pressure on the lower cover 32. At this time, the torque sensor will obtain a torque value. When the torque value reaches the preset torque value, the upper cover 31 is closed and the lower cover 32 is opened.

[0095] In some other embodiments, a scale is disposed below the first sorting unit 30, and the scale directly calculates the weight of the first sorting unit 30 (which may be the weight of the first sorting unit 30 minus the weight of the first sorting unit 30 itself, or the weight of the first sorting unit 30 itself).

[0096] In some embodiments, it also includes: a grid conveying unit, which is connected to the connecting conveying unit 40, and is used to receive fruits and vegetables conveyed by the connecting conveying unit 40; the grid conveying unit receives fruits and vegetables conveyed by two connecting conveying units 40.

[0097] The grid conveying unit comprises: a partition frame and a driving member, wherein the driving member is in transmission connection with a plurality of the partition frames, and the partition frames are used to receive and transport the fruits and vegetables output by the connection conveying unit 40;

[0098] When a connecting conveying unit 40 is transporting fruits and vegetables, a partition frame is placed on one side of the output end of the connecting conveying unit 40 for transporting fruits and vegetables to receive the fruits and vegetables.

[0099] Specifically, when the connecting conveying unit 40 moves a single portion of fruits and vegetables to the grid conveying unit, the grid conveying unit has a plurality of partition frames, each of which accommodates a portion of fruits and vegetables. The grid conveying unit is activated after a preset time to convey the classified fruits and vegetables to the packaging unit. The packaging unit then packages the fruits and vegetables.

[0100] According to some embodiments of the present application, referring to Figure 8 , also includes the steps of: when the lower cover is opened, the upper cover is closed, and the single fruit conveying unit continues to transport fruits and vegetables to the first sorting unit.

[0101] The upper cover 31 is placed in the accommodating cavity, and along the moving direction of fruits and vegetables, the upper cover 31 divides the accommodating cavity into a first cavity 341 and a second cavity 342 .

[0102] The upper cover 31 is placed in the accommodating cavity and divides the accommodating cavity into a first cavity 341 and a second cavity 342. The first cavity is close to the single fruit conveying unit 10; in actual use, when the lower cover 32 is opened, the upper cover 31 is closed, and the first cavity can immediately receive fruits and vegetables to improve the sorting efficiency of the first sorting unit 40.

[0103] Specifically, the upper cover body 31 is also provided with a torque sensor, and the function and structure of the torque sensor are the same as those of the torque sensor on the lower cover body 32, which will not be described in detail here.

[0104] In actual use, the upper cover is opened and the lower cover is closed. When the cumulative weight of the fruits and vegetables in the second chamber reaches a preset single portion weight, the upper cover is closed and the lower cover is opened to release the fruits and vegetables. At this time, due to the closure of the upper cover, the fruits and vegetables that continue to be sorted will be stored in the first chamber. When the weight of the fruits and vegetables in the first chamber reaches a preset single portion weight, the upper cover and the lower cover are opened at the same time to directly release the fruits and vegetables, and then the above steps are repeated.

[0105] In actual use, for example, at 0s, the first sorting unit 30 numbered CHU02 is full of packages, triggering the lower cover 32 of the first sorting unit 30 numbered CHU02 to open and release the goods, and at the same time triggering the connection conveying unit 40 numbered DB1-01 to run, setting the first sorting unit 30 numbered CHU02 to release the goods time is 0.5s, and setting the running time of the connection conveying unit 40 numbered DB1-01 to 1.5s, which is equivalent to that within 1s, all the goods on the first sorting unit 30 numbered CHU02 need to be transported to the grid conveying unit (the length of the connection conveying unit 40 is 1m, and the speed is 1m / s). At 1.5s, the grid conveying unit runs and conveys forward for 0.5s (conveys the next grid to the waiting place, the grid length is 0.3m, and the speed of the grid conveying unit is 0.6m / s). At 2s, the first sorting unit 30 numbered CHU02 is opened and released. 4 is full of packages, triggering the lower cover 32 of the first sorting unit 30 numbered CHU04 to open and release the goods, and at the same time triggering the connection conveying unit 40 numbered DB1-02 to run, setting the release time of the first sorting unit 30 numbered CHU04 to 0.5s, and setting the running time of the connection conveying unit 40 numbered DB1-02 to 1.5s, which is equivalent to conveying all the goods on the first sorting unit 30 numbered CHU04 to the grid conveying unit within 1s (the length of the connection conveying unit 40 is 1m, and the speed is 1m / s). At 3.5s, the grid conveying unit runs and conveys forward for 0.5s (conveys the next grid to the waiting place, the grid length is 0.3m, and the grid conveyor speed is 0.6m / s). At 4s, the first sorting unit 30 numbered CHU03 is full of packages... and so on.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A method for detecting the weight of fruits and vegetables, characterized in that: Includes steps: Drive the single fruit conveying unit to convey fruits and vegetables in sequence; Drive the weighing unit to weigh each fruit and vegetable in turn and record the weight of each fruit and vegetable; There are multiple first sorting units, and the multiple first sorting units are placed on the side of the single fruit conveying unit. The multiple first sorting units correspond to multiple preset single fruit weights and preset single portion weights respectively; when the weight of a single fruit or vegetable reaches the preset single fruit weight of a first sorting unit, the single fruit or vegetable falls into the corresponding first sorting unit; When the accumulated weight reaches a preset single-serving weight, the upper cover of the first sorting unit moves to avoid an increase in the weight of a single-serving fruit and vegetable; and the lower cover of the first sorting unit moves to open the second opening of the first sorting unit, so that fruits and vegetables reaching the preset single-serving weight fall down.

2. A method for detecting weight of fruits and vegetables according to claim 1, characterized in that: Also includes the steps: The visual inspection unit located on the single fruit conveying unit is driven to inspect the passing fruits and vegetables in sequence to record the quality of each fruit and vegetable.

3. A method for detecting weight of fruits and vegetables according to claim 2, characterized in that: After driving the visual inspection unit on the single fruit conveying unit to sequentially inspect the passing fruits and vegetables, the method further includes the following steps: The second sorting unit is placed at one side of the single fruit conveying unit, and when the visual inspection unit detects damaged fruits and vegetables, the damaged fruits and vegetables fall into the second sorting unit.

4. A method for detecting weight of fruits and vegetables according to claim 1, characterized in that: Also includes the steps: When the total weight of fruits and vegetables in the first sorting unit reaches a preset single portion weight, the lower cover is opened, the fruits and vegetables fall onto the connecting conveying unit below the second opening of the first sorting unit, and the upper cover is closed.

5. A method for detecting the weight of fruits and vegetables according to claim 4, characterized in that: When the lower cover is opened, the connecting and conveying unit is started synchronously to move the falling fruits and vegetables.

6. A method for detecting weight of fruits and vegetables according to claim 4, characterized in that: When the total weight of the fruits and vegetables in the first sorting unit reaches a preset single portion weight, the connecting and conveying unit is synchronously started to move the falling fruits and vegetables.

7. A method for detecting weight of fruits and vegetables according to claim 4, characterized in that: Each of the connecting and conveying units receives fruits and vegetables outputted by a plurality of the first sorting units; When the second opening of one first sorting unit is opened, the second openings of the other first sorting units are in a closed state.

8. A method for detecting the weight of fruits and vegetables according to claim 7, characterized in that: Each of the connecting conveying units is connected to the output ends of the two first sorting units.

9. A method for detecting weight of fruits and vegetables according to claim 1, characterized in that: The method further comprises the following steps: when the lower cover is opened, the upper cover is closed, and the single fruit conveying unit continues to convey fruits and vegetables to the first sorting unit.

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