Fruit and vegetable bagging method for bagging protection, bagging equipment and fruit and vegetable bag

Abstract

The invention discloses a fruit and vegetable bagging method for bagging protection, bagging equipment and a fruit and vegetable bag, and relates to the technical field of fruit and vegetable planting protection. The method comprises the steps that a fruit and vegetable bag with a mutually-embedded opening and closing linkage piece is provided, and the linkage piece is made of a semi-rigid material and has an outward prefabricated initial amplitude; the execution mechanism relatively approaches to apply extrusion force to the head of the linkage piece so as to open the bag opening; after the fruit is sleeved, pulling force is applied to the tail portion of the linkage piece through the execution mechanism in a relatively far-away mode to close the bag opening. The equipment is compact in structure and integrates the supply unit, the bag opening / collecting integrated unit and the bag feeding unit. An independent bag opening / collecting device is not needed, the structure is simplified, the cost and weight are reduced, the bagging efficiency is improved, pedicel damage is avoided, and the fruit and vegetable bagging machine is suitable for fruit and vegetable bagging operation of different scales.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of fruit and vegetable planting protection, and particularly relates to a fruit and vegetable bagging method for bagging protection, a fruit and vegetable bag used in conjunction, and a bagging device, which is particularly suitable for bagging operations of various fruits (such as apples, pears, citrus fruits, tomatoes, etc.) in orchards and vegetable gardens, and can realize efficient and convenient opening and closing of the bag mouth and bagging operation. BACKGROUND

[0002] Fruit and vegetable bagging is a key technology for ensuring fruit quality in agricultural production, and its core role is to isolate the invasion of pests and diseases, avoid damage from wind, rain and sunlight, reduce environmental pollution and erosion, and at the same time improve fruit color, sweetness and yield. However, the existing fruit and vegetable bagging technology and related equipment and bag bodies have many problems to be solved: 1. Complex device structure, poor portability: The existing bagging device (such as CN112298649A, CN220292683U) needs to realize the functions of bag opening and bag closing through independent devices, for example, using a bag opening rod to expand the bag, using a wire to wrap the bag, or using a suction cup to adsorb and a guide plate to insert to complete the bag opening, resulting in a large number of device parts, a large weight, and inconvenience for fruit farmers to hold and operate in a complex orchard environment, and a high manufacturing cost.

[0003] 2. Single function of bag mouth component, poor linkage: The bag mouth of the existing fruit and vegetable bag usually uses a flexible pull rope (CN218604264U) or a rigid iron wire (CN220292683U) as an opening and closing component. The flexible pull rope cannot stably form a fitting structure and is difficult to open the bag by extrusion. The rigid iron wire lacks elasticity and cannot recover to the initial state after extrusion, and both need an additional bag opening or closing driving mechanism, which cannot realize the integrated linkage operation of "extrusion bag opening and pulling bag closing".

[0004] 3. Low bagging efficiency, easy to damage fruit: The existing bag feeding mechanism usually uses a paper rubbing wheel to feed the bag (CN107347528B) or a driving belt to feed the bag (CN107047150A), which is prone to problems such as bag jamming and feeding multiple bags at a time.

[0005] In view of the defects of the above-mentioned prior art, the present application proposes a bagging method, a fruit and vegetable bag, and a bagging device, which solves the problems of complex equipment, heavy weight, and low efficiency in the prior art through integrated design and innovative structure. SUMMARY

[0006] The present application aims to overcome the deficiencies of the prior art and provide a fruit and vegetable bagging solution with complete technical scheme, logical reasonableness, and strong practicality, which specifically achieves the following objectives: 1. A simple and efficient bagging method is provided, which realizes the integrated operation of "squeezing to open the bag and pulling to close the bag" through the same or two sets of actuators, eliminating the need for separate bag opening and closing devices and simplifying the operation process.

[0007] 2. A fruit and vegetable bag adapted to this method is provided, wherein the bag opening and closing linkage adopts an interlocking combination structure, which has both semi-rigidity and elasticity, can accurately match the action requirements of squeezing to open the bag and pulling to close the bag, and the structure is stable and not easy to fall off.

[0008] 3. A bagging device with a compact structure, light weight and low cost is provided. It can select one or two sets of actuators according to the application scenario, so as to take into account the requirements of low cost and high efficiency, while avoiding damage to the fruit stem during the bagging process.

[0009] 4. Optimize the design of the bag-loading mechanism to achieve stable one-by-one conveying of fruit and vegetable bags, avoid bag jamming problems, and further improve the continuity and efficiency of bagging operations.

[0010] To achieve the above-mentioned objectives, the present invention adopts the following technical solution, specifically comprising three parts: a bagging method, fruit and vegetable bags, and bagging equipment. These three parts work together to form a complete bagging solution: (a) Bagging method The core of the bagging method of the present invention lies in the integrated action of "squeezing to open the bag and pulling to close the bag", which uses one or two sets of actuators to complete the opening and closing of the bag opening. Specifically, it includes the following steps: 1. Preparation Step (S1): Provide the fruit and vegetable bag according to the present invention. The bag opening is provided with a pair of independent opening and closing linkages. The tail of the first opening and closing linkage is fitted into the head of the second opening and closing linkage, and the tail of the second opening and closing linkage is fitted into the head of the first opening and closing linkage. The combined structure after the two linkages are interlocked has an outward pre-made initial amplitude. The opening and closing linkages are made of semi-rigid materials (such as nylon PA, modified PP, rigid PVC, flexible metal sheet, etc.), which have both a certain degree of hardness and elasticity. The head is the end closer to the bag opening, and the tail is the end farther away from the bag opening.

[0011] 2. Bag opening step (S2): Through the relative approaching action of the bag opening actuator, opposing squeezing forces are applied to the head areas of a pair of opening and closing linkage components. This squeezing force is opposite to the outward initial amplitude direction of the opening and closing linkage component assembly structure, forcing the middle of the two opening and closing linkage components to overcome the tension and bend in the direction away from each other, thereby causing the bag opening to open synchronously, forming an opening space sufficient to accommodate the fruit.

[0012] This step can be implemented in two ways depending on the usage scenario: Implementation Method 1 (Single Actuator): The bag opening actuator consists of one set, with only the head of one opening and closing linkage being squeezed, while the other opening and closing linkage is held fixed by a limiting component. The fixed linkage provides a support point for the force-bearing linkage, causing both to bend and open under the squeezing force, thus realizing the bag opening action. This method can simplify the structure to the greatest extent and reduce the weight and cost of the equipment.

[0013] Implementation Method Two (Two Sets of Actuators): Two sets of bag-opening actuators are used, each corresponding to the head of one of the two opening and closing linkage components. The two sets of actuators move in a relatively close manner synchronously, applying pressure to the heads of the two linkage components simultaneously, causing them to bend and open symmetrically. This method can improve the bag-opening speed, reduce the travel distance of a single set of actuators, and make the bag opening more uniform, making it suitable for large-scale, high-efficiency bagging scenarios.

[0014] 3. Insertion Step (S3): The user holds the gripping part of the bagging device and moves the open fruit and vegetable bag to the corresponding position of the fruit to be bagged. The user moves the device to insert the fruit into the bag through the open opening, ensuring that the fruit is completely wrapped by the bag and the stem is located outside the bag opening.

[0015] 4. Sealing Step (S4): By moving the bag-collecting actuator away from each other, a pulling force is applied to the tails of a pair of opening and closing linkages in a direction away from each other. This pulling force causes the tails of the two opening and closing linkages to move away from each other, thereby driving their heads to approach and tighten together, causing the bag opening to close synchronously, thus completing the bagging operation.

[0016] The execution mechanism for this step corresponds to the bag-opening step, and it also includes two implementation methods: Implementation Method 1 (Single Actuator): The bag-closing actuator and the bag-opening actuator share a set of components. Only the tail of one of the opening and closing linkages is pulled, while the other linkage is kept fixed by a limiting component, so that the head of the force-bearing linkage moves closer to the fixed linkage, thereby tightening the bag opening.

[0017] Implementation Method 2 (Two Sets of Actuators): There are two sets of bag-collecting actuators, each corresponding to the tail of one of the two opening and closing linkages. The two sets of actuators move away from each other synchronously, applying tension to the tails of the two linkages simultaneously, so that the heads of the two linkages tighten symmetrically, avoiding damage to the fruit stem caused by uneven force on the bag opening.

[0018] (ii) Fruit and vegetable bags The fruit and vegetable bag of the present invention is the core carrier of the above-mentioned bagging method. Its structural design directly determines the feasibility and stability of the bagging action. The specific structure is as follows: 1. Bag Body: The bag body is made of a material with a certain degree of toughness, such as paper, cloth, or composite film. Breathable, waterproof, or anti-corrosion materials can be selected according to the type of fruit and vegetable and its growing environment. The bag opening has mounting structures on both sides for the installation of the opening and closing linkage. These structures can be one or more combinations of rope holes, slots, or clamping grooves. Specifically, they can be formed in the following ways: for paper bags, the rope hole is formed by rolling up the edge of the bag opening and then gluing it; for cloth bags, the slot is formed by sewing; for composite film bags, the clamping groove is formed by ultrasonic welding. This ensures the stability of the mounting structure and prevents the opening and closing linkage from falling off during operation.

[0019] 2. Opening and closing linkage: The opening and closing linkage consists of a pair of independent strip-shaped components made of a semi-rigid material. This material must meet the requirement of "being able to bend and deform and return to its initial state". Its hardness range is Shore hardness D50~D80, ensuring that it can bend under external force and return to its initial amplitude after the external force is removed.

[0020] The two opening and closing linkages are connected in an interlocking manner: the first linkage has an interlocking head at its tail, and the second linkage has an interlocking hole at its head that matches the interlocking head; simultaneously, the second linkage has an interlocking head at its tail, and the first linkage has a corresponding interlocking hole at its head. The two linkages are interlocked and fixed through the cooperation of the "tail interlocking head + head interlocking hole". The combined structure after interlocking naturally forms an outward pre-fabricated initial amplitude, the angle of which ranges from 0.5° to 10°, ensuring that the bag opening is in a pre-tightened state when no external force is applied, and can open smoothly when subjected to external pressure.

[0021] Optionally, the tail of the opening and closing linkage may be provided with an enlarged section, the size of which is larger than the aperture or groove width of the mounting structure. This enlarged section is used to form a limiting fit with the actuator of the bag-covering device, ensuring a reliable connection between the actuator and the linkage during the pulling process and preventing slippage. The cross-sectional shape of the opening and closing linkage may be flat, cylindrical, or polygonal, as long as it can adapt to the mounting structure of the bag opening and achieve bending and tightening actions.

[0022] (III) Bagging Equipment The bagging device of the present invention is used to implement the above-mentioned bagging method. It has a compact structure and is easy to operate, and specifically includes the following components: 1. Fruit and vegetable bag supply unit: Used to store fruit and vegetable bags to be bagged. It is usually a box structure with an internal cavity that can store multiple fruit and vegetable bags at one time. The discharge end of the box works in conjunction with the bagging unit to ensure that the fruit and vegetable bags are output in an orderly manner.

[0023] 2. Bag opening unit: Includes at least one pair of opposing actuators. The actuators can be structures such as clamping arms, pressure plates, or rollers. Their working ends are equipped with contact structures (such as U-shaped notches, arc grooves, or anti-slip textures) adapted to the opening and closing linkage to accurately apply pressure and prevent slippage. The actuators can move closer to each other under the drive mechanism, opening the bag mouth by squeezing the head of the opening and closing linkage.

[0024] 3. Bag-closing unit: Integrated with the actuating components of the bag-opening unit, eliminating the need for additional independent parts. Bag closing is achieved simply by the relative movement of the actuating components away from each other. The working end of the actuating components is equipped with a limiting structure (such as a gripper, slot, protrusion, or expansion section limiting groove) that matches the tail of the opening and closing linkage. This structure applies tension to the tail of the linkage when the components move away from each other, driving the bag opening to tighten.

[0025] 4. Limiting components: When a single actuator is used, the limiting components are used to fix the position of one of the opening and closing linkage components. They can be fixed blocks, slots, or elastic clamps. They have a simple structure, are lightweight, and have a cost far lower than the drive mechanism, which can effectively simplify the equipment structure.

[0026] 5. Bag Loading Unit: Working in conjunction with the fruit and vegetable bag supply unit, this unit transports the fruit and vegetable bags one by one from the supply unit to the opening unit's operating position. The core function of the bag loading unit is to ensure precise matching between the opening and closing linkage of the fruit and vegetable bags and the actuating components of the opening unit. The specific implementation method is not limited; it can employ flexible pushing, roller conveying, or pneumatic conveying, as long as it achieves continuous, orderly, and individual transport of the fruit and vegetable bags, avoiding problems such as bag jamming or simultaneous output of multiple bags.

[0027] 6. Grip components: Located on the frame of the equipment, these can be handles, grips, or other structures made of non-slip material, making it easy for users to hold the equipment for movement, insertion, and other operations, thus improving the comfort and convenience of operation.

[0028] 7. Drive Mechanism: Used to drive the actuator to move relatively close or relatively far apart. It can be driven by a motor, cylinder, or manually. When driven by a motor, power can be transmitted through worm gears, gear transmissions, etc., to ensure smooth and precise movement of the actuator. When driven manually, levers, linkages, etc., can simplify operation and reduce equipment costs.

[0029] This invention, through synergistic innovation in bagging methods, fruit and vegetable bags, and bagging equipment, offers the following significant advantages compared to existing technologies: 1. Simplify equipment structure and reduce weight and cost: The design of "opening and closing bags with the same mechanism" eliminates the separate opening and closing devices in the existing technology, greatly reducing the number of equipment parts; at the same time, it provides a single-set actuator implementation method, combined with simple limiting components, to further reduce equipment weight and manufacturing costs, making it easy to carry and operate.

[0030] 2. Improve bagging efficiency and adapt to multiple scenarios: The bagging unit can continuously transport fruit and vegetable bags one by one, avoiding bag jamming problems; the implementation method of two sets of actuators can complete the bag opening and bag collection actions simultaneously, greatly improving the bagging speed and making it suitable for large-scale planting bases; the implementation method of a single set of actuators is low-cost and easy to operate, suitable for small-scale individual farmers, and covers the differentiated needs of different users.

[0031] 3. Protect fruit quality and reduce damage: When the two sets of actuators operate synchronously, the opening and closing of the bag is symmetrical and uniform, avoiding damage to the fruit stem caused by unilateral force; the semi-rigid opening and closing linkage of the fruit and vegetable bag is elastic, which can buffer the impact force during the tightening process, further protecting the fruit and ensuring the normal growth of the fruit after bagging.

[0032] 4. The fruit and vegetable bags are highly compatible with the equipment and operate reliably: The interlocking opening and closing linkage of the fruit and vegetable bags is precisely matched with the equipment's actuators, and the action of squeezing to open the bag and pulling to close the bag is highly linked, making it less prone to slippage or jamming; the installation structure of the opening and closing linkage is stable, ensuring a reliable connection between the bag and the equipment during the bagging process and improving the success rate of the operation.

[0033] 5. Complete technical solution, easy to promote: This invention provides a complete solution from bagging method, matching fruit and vegetable bags to special equipment. The parts are mutually compatible and logically sound. The structure is simple, the manufacturing cost is controllable, and it is easy to realize industrial production and promote its large-scale application in agricultural production.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Fig. 1 This is a schematic diagram of the bagging method of the present invention; Fig. 2This is a schematic diagram of the interlocking structure of the fruit and vegetable bag opening and closing linkage component of the present invention; Fig. 3 This is a schematic diagram of the unit layout of the bagging device of the present invention. Detailed Implementation

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] The following is in conjunction with the attached figures ( Figs. 1 to 3 The present invention will be described in detail with reference to specific embodiments, so that those skilled in the art can clearly and completely understand and implement the present invention.

[0039] Example 1: Bagging equipment with a single actuator and matching fruit and vegetable bags (suitable for low-cost scenarios) (I) Structural Composition 1. Bagging equipment The bagging equipment in this embodiment emphasizes low cost and lightweight design, making it suitable for use by small-scale orchard owners. Its specific structure is as follows: Frame assembly: Made of high-strength, lightweight material, with an overall weight not exceeding 1.5kg. A grip component is located in the middle of the frame, covered with a non-slip material and featuring a textured surface for easy handheld operation over extended periods. A fruit and vegetable bag supply unit (bag box) is fixedly installed on one side of the frame, while the other side houses the integrated bag opening and bag collecting unit.

[0040] Actuating component: It is a single-arm clamping structure. The free end of the clamping arm has a U-shaped notch structure with a chamfered guide structure at the notch opening. The width of the notch is adapted to the thickness of the opening and closing linkage body to ensure that the opening and closing linkage body can be smoothly engaged. The root of the clamping arm is hinged to the frame, and the middle part is connected to the manual drive component. By operating the drive component, the clamping arm can be rotated to achieve relative approach or distance movements.

[0041] Limiting component: This is a limiting structure fixed to the frame, positioned corresponding to the opening and closing linkage on the other side. Its free end also has a U-shaped notch structure for engaging the opening and closing linkage body. A flexible buffer layer is provided inside the U-shaped notch structure to fit and fix one of the opening and closing linkages, preventing damage to the linkage during operation.

[0042] A gripper mechanism can also be installed inside the U-shaped notch structure of the actuator and the limiting component to clamp the tail of the opening and closing linkage component, making it easy to pull.

[0043] The bag-loading unit includes a guide channel structure, a pusher component, and an elastic drive component. The width of the guide channel structure is adapted to the thickness of the fruit and vegetable bag opening and closing linkage component. One end corresponds to the material release window of the bag box, and the other end extends to the working position of the actuator. The pusher component is embedded in the guide channel, and the elastic drive component pushes the fruit and vegetable bag in the guide channel to the working position through continuous elastic force. The gap between the end of the guide channel near the actuator and the clamping arm or the limiting component is smaller than the thickness of the opening and closing linkage component to prevent the linkage component from falling off.

[0044] Bag box: Made of transparent material, making it easy to observe the remaining amount of fruit and vegetable bags inside. It has an opening and closing discharge window on one side and a feeding window on the other side that is aligned with the guide channel structure.

[0045] 2. Matching fruit and vegetable bags Bag body: The bag material is adapted to medium-sized fruits, and the two sides of the bag opening are rolled and glued to form an installation structure for inserting the opening and closing linkage.

[0046] The opening and closing linkage consists of a pair of independent semi-rigid components made of modified PP (Shore hardness D60), with cross-sectional dimensions adapted to the installation structure. The two linkages are interlocked and fixed by a "tail fitting head - head fitting hole". The interlocked combination structure forms an initial outward pre-fabricated amplitude of 5° (within the preset tension range of 0.5°~10°), ensuring that the bag opening is pre-tightened when there is no external force and can be smoothly opened under external force.

[0047] (II) Work Process Preparation stage: Open the bag box feeding window, pull the pusher towards the feeding window and temporarily fix it, put multiple fruit and vegetable bags with the opening and closing linkage assembled into the guide groove in sequence, release the pusher, and the pusher pushes the fruit and vegetable bags to the working position under the action of the elastic drive component. The opening and closing linkage of the foremost fruit and vegetable bag is locked between the notch of the actuator and the limiting structure of the limiting component.

[0048] Opening action: The user holds the gripping component and aligns it with the fruit to be bagged. The user operates the manual drive component, which drives the single set of clamping arms to approach the limiting structure. The notch of the clamping arm applies opposing squeezing force to the head of one of the opening and closing linkage components, while the head of the other opening and closing linkage component is limited and fixed by the limiting component, generating a corresponding reaction force. This causes the two opening and closing linkage components to overcome the initial amplitude tension after interlocking and bend and deform in the direction away from each other, driving the bag opening to open synchronously to the width that fits the fruit.

[0049] Insertion action: Keep the bag open and move the device to insert the fruit into the bag through the open opening, ensuring that the fruit is completely wrapped and the stem is on the outside of the bag opening.

[0050] Sealing action: The manual drive component is operated in reverse, driving the clamping arm to move away from the limiting structure. The notch of the clamping arm exerts a pulling force on the tail of the opening and closing linkage component, while the tail of the other opening and closing linkage component is limited and fixed by the limiting component, generating a corresponding reaction force. This causes the heads of the two opening and closing linkage components to move closer to each other, driving the bag mouth to close and completing the bagging operation.

[0051] Continuous operation: After sealing, the pusher pushes the next fruit and vegetable bag to the working position, and the above steps are repeated to achieve continuous bagging.

[0052] Example 2: Bagging equipment with two sets of actuators and matching fruit and vegetable bags (for high-efficiency scenarios) (I) Structural Composition 1. Bagging equipment The bagging equipment in this embodiment emphasizes efficient operation and is suitable for large-scale fruit and vegetable planting bases. Its specific structure is as follows: Frame assembly: Made of high-strength material, with a compact structure and a grip at the bottom for easy two-handed operation. A fruit and vegetable bag supply unit is installed on one side of the frame, and two symmetrically arranged actuators are installed on the other side.

[0053] Actuating components: Two sets of opposing clamping arms, each with a notch at its free end to accommodate an opening and closing linkage mechanism, and a guide structure at the notch. The two sets of clamping arms can synchronously approach or move away from each other under the drive of the mechanism.

[0054] Drive mechanism: It adopts a power transmission component, which can drive two sets of clamping arms to move synchronously. When rotating forward, it drives the clamping arms to move closer to each other, and when rotating backward, it drives the clamping arms to move further apart.

[0055] Bag feeding unit: includes guide channel structure, pusher and elastic drive, which can transport the fruit and vegetable bags in the supply unit to the working position one by one; the supply unit can avoid interference with the sealing operation by sliding fit structure.

[0056] Bag / box: Capacity adapted to batch operations, with a transparent viewing window for easy monitoring of remaining quantity.

[0057] 2. Matching fruit and vegetable bags Bag body: Waterproof bag material suitable for large fruits is used, and the two sides of the bag opening are ultrasonically welded to form the installation structure.

[0058] Opening and closing linkage: This is a pair of independent semi-rigid components, made of flexible metal sheets covered with a plastic layer (Shore hardness D70), with cross-sectional dimensions adapted to the installation structure. After the two linkages interlock, they form an initial outward pre-fabricated amplitude of 3° (within the range of 0.5°~10°), with an enlarged section at the tail end to form a reliable limiting fit with the clamping arm notch.

[0059] (II) Work Process Preparation stage: The matching fruit and vegetable bags are put into the bag box in batches. The pusher pushes the fruit and vegetable bags to the working position under the action of the elastic drive component, and the equipment enters the standby state.

[0060] Bag opening action: The user holds the device and aligns it with the fruit to be bagged, triggering the control component. The drive mechanism moves the two sets of clamping arms to approach each other synchronously. The notches of the clamping arms apply pressure to the heads of the two opening and closing linkages simultaneously, causing the two linkages to bend and deform symmetrically, and the bag opening opens synchronously to the appropriate width. At the same time, the supply unit moves along the sliding fit structure to the avoidance position.

[0061] Insertion action: The moving device inserts the fruit into the bag, with the stem located on the outside of the bag opening.

[0062] Sealing action: Triggering the control component, the drive mechanism drives the two sets of clamping arms to move away from each other synchronously. The notch of the clamping arms applies a pulling force to the bulging section at the tail of the two linkage parts, causing their heads to approach and tighten synchronously, and the bag opening closes.

[0063] Reset and continuous operation: The supply unit resets, the pusher pushes the next fruit and vegetable bag into place, and the equipment enters the next standby state. The steps are repeated to achieve efficient continuous bagging.

[0064] Example 3: Variant Examples of Fruit and Vegetable Bags (Adapted to Different Scenarios) This embodiment provides three variations of fruit and vegetable bags to suit different types of fruits and vegetables and environments: Cloth bag type fruit and vegetable bag (reusable scenario): The bag body is made of cotton canvas, and the bag opening is formed by sewing to form an installation structure; the opening and closing linkage is made of rigid PVC material, which interlocks to form an initial amplitude of 2°, and the tail is equipped with a foldable expansion section.

[0065] Breathable fruit and vegetable bags (high temperature and high humidity environment): The bag body is made of non-woven fabric (with breathable holes), and the bag opening is formed by rolling and bonding to form an installation structure; the opening and closing linkage is made of modified PE material, which interlocks to form an initial amplitude of 4°.

[0066] Extra-large fruit and vegetable bag (suitable for melons and fruits): The bag body is a woven bag, and the bag opening is formed by heat pressing to form the installation structure; the opening and closing linkage is made of aluminum alloy, which interlocks to form an initial amplitude of 8°, and the tail is equipped with a circular expansion section.

[0067] The above embodiments are all based on the core technical solution of the present invention, and are only adjusted in terms of material, size and specific implementation of some functional components, without exceeding the protection scope of the claims of the present invention.

[0068] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A method for bagging fruits and vegetables for protection, characterized in that, Includes the following steps: S1. Provides a fruit and vegetable bag with a pair of opening and closing linkages, wherein the pair of opening and closing linkages are independently arranged and connected to each other by a separable connection structure, and the opening and closing linkages are made of semi-rigid material and have an outward pre-made initial amplitude. S2. Opening the bag: The opening actuator squeezes the heads of the pair of opening and closing linkages to open the bag opening. S3. Inserting: Inserting the fruit into the fruit and vegetable bag; S4. Sealing: The bag-closing actuator applies a pulling force to the tail of the pair of opening and closing linkages, causing the opening and closing linkages to tighten and close the bag opening.

2. The fruit and vegetable bagging method according to claim 1, characterized in that, The detachable connection structure is specifically as follows: the tail of the first opening and closing linkage component is engaged with the head of the second opening and closing linkage component, and the tail of the second opening and closing linkage component is engaged with the head of the first opening and closing linkage component.

3. The fruit and vegetable bagging method according to claim 1, characterized in that, In step S2, the bag opening mechanism is a set, applying pressure to the head of one of the opening and closing linkage components while keeping the other opening and closing linkage component fixed; in step S4, the bag closing mechanism is a set, applying tension to the tail of one of the opening and closing linkage components while keeping the other opening and closing linkage component fixed.

4. The fruit and vegetable bagging method according to claim 1, characterized in that, In step S2, the bag-opening actuator consists of two sets, which simultaneously apply pressure to the heads of the two opening and closing linkages; in step S4, the bag-closing actuator consists of two sets, which simultaneously apply tension to the tails of the two opening and closing linkages.

5. A fruit and vegetable bagging device for bagging protection, characterized in that, include: The bag opening unit includes at least a pair of opposing actuators, which can move relatively close to each other to squeeze a pair of opening and closing linkages of the fruit and vegetable bag, causing the opening and closing linkages to open the bag opening. The bag-collecting unit is integrated with the actuating component of the bag-opening unit. The actuating component can move relatively away to exert a pulling force on the tail of a pair of opening and closing linkages, so that the opening and closing linkages tighten and close the bag opening. The opening and closing linkage is made of semi-rigid material and has an outward pre-fabricated initial amplitude. The pair of opening and closing linkages are set independently to each other and are connected to each other by a separable connection structure.

6. The fruit and vegetable bagging equipment according to claim 5, characterized in that, The bag opening unit has one set of actuators, the bag closing unit has one set of actuators, and the device also includes a limiting component. The actuators of the bag opening unit are used to squeeze the head of one of the opening and closing linkage components, and the limiting component is used to fix the head position of the other opening and closing linkage component. The actuators of the bag closing unit are used to apply a pulling force to the tail of one of the opening and closing linkage components, and the limiting component is used to fix the tail position of the other opening and closing linkage component.

7. The fruit and vegetable bagging equipment according to claim 5, characterized in that, The bag opening unit has two sets of actuators, each corresponding to the head of one of the two opening and closing linkages, for synchronous squeezing; the bag closing unit has two sets of actuators, each corresponding to the tail of one of the two opening and closing linkages, for synchronous pulling.

8. The fruit and vegetable bagging equipment according to claim 5, characterized in that, Also includes: Supply unit, used to supply fruit and vegetable bags; The bag-loading unit is used to convey fruit and vegetable bags to the execution component of the bag-opening unit.

9. A fruit and vegetable bag for bagging protection, characterized in that, include: The bag has an internal cavity for holding the fruit; A pair of opening and closing linkage components are connected to the bag body. The pair of opening and closing linkage components are set independently to each other and connected to each other by a separable connection structure. The opening and closing linkage components are made of semi-rigid material and have an outward pre-made initial amplitude.

10. The fruit and vegetable bag according to claim 9, characterized in that, The detachable connection structure is specifically as follows: the tail of the first opening and closing linkage component is engaged with the head of the second opening and closing linkage component, and the tail of the second opening and closing linkage component is engaged with the head of the first opening and closing linkage component.

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