Packaging equipment and packaging method for preserving fruits

Abstract

The invention relates to the technical field of fruit packaging, and discloses a packaging device and a packaging method for fruit preservation. A packaging box is first placed on a machine body, the machine body moves the packaging box to the bottom of a funnel, and then the funnel leaks the fruit into the packaging box, so that the fruit is put into the packaging box, and then the air port is started, the air port is moved to the top of the side wall of the packaging box, and then the hot melt sealing ring is started, and the hot melt sealing ring first performs film sealing treatment on the position above the packaging box where there is no air port, and protective gas is injected into the packaging box from the air port. After the air port is moved away, the hot melt sealing ring performs film sealing treatment on the remaining position of the packaging box, so that the fruit is packaged and preserved at the same time, and the fruit is partially sealed during the preservation treatment, and the unidirectionality of the gas flow of the air pore is utilized to make the injected protective gas stay in the packaging box, so as to avoid the escape of the protective gas and the waste of the protective gas, thereby greatly reducing the production cost of fruit packaging.

Description

Technical Field

[0001] The invention relates to the technical field of fruit packaging, in particular to packaging equipment and a packaging method for preserving fruits. Background Art

[0002] The tropical fruits that are abundant in the south, such as lychee, longan, kumquat, etc., have a very short picking period, and the picking period happens to be the hot summer season. When the fruits are picked, they are very easy to deteriorate and rot. Therefore, when packaging the fruits, they need to be packaged to keep them fresh.

[0003] In the existing packaging equipment, such as the Chinese patent application CN115140345A, the sterilization, sealing, vacuumization and nitrogen filling of the fruit in the basket are automatically completed through the material conveying mechanism, the arranging mechanism, the low-temperature sterilization mechanism, the coating mechanism, the hot pressing mechanism, the vacuuming mechanism, the nitrogen filling mechanism and the discharging conveyor belt, and the material is automatically discharged after the packaging is completed. The whole fruit packaging process is completed automatically without the need for human operation, which can ensure the freshness and edible safety of the fruit packaging and achieve the purpose of not spoiling for a long time. In the process of automatic packaging of the equipment, the freshness quality and safety of the food can be improved, the working efficiency of the fruit packaging can be improved, the operating safety of the operator is guaranteed, the manpower consumption of the fruit packaging is reduced, and the fruit agricultural products in the south can be transported to farther places in the north.

[0004] However, there are still the following problems: when the fruit is packaged for preservation, gas is injected into the fruit package for preservation. The fruit package is sealed only after the gas is injected, resulting in some protective gas escaping during the time difference between the gas injection and the sealing, resulting in a waste of gas use and a high production cost of fruit packaging. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a packaging device and a packaging method for preserving fruits, which have the advantages of preserving fruits while packaging them, and first partially sealing the fruits during the preserving process, and utilizing the unidirectionality of gas flow in the pores to allow the injected protective gas to remain in the packaging box, thereby avoiding the escape of the protective gas, preventing the waste of the protective gas, and greatly reducing the production cost of fruit packaging. The invention solves the problem that during the preservation process of fruit packaging, gas is injected into the fruit packaging for preservation, and the fruit packaging is sealed only after the gas is injected, resulting in some protective gas escaping during the time difference between the gas injection and the sealing, resulting in waste of gas and high production cost of fruit packaging.

[0006] To achieve the above object, the present invention provides the following technical solution: a packaging device, comprising a body, a packaging mechanism arranged on the body, and an auxiliary mechanism arranged on the body, the packaging mechanism comprising a funnel and a packaging box, the body is provided with the funnel, the body is provided with the packaging box, the packaging box is transferred on the body to the bottom of the funnel, and the funnel puts fruit into the packaging box; The auxiliary mechanism includes an air port and a hot-melt sealing ring. The two air ports are respectively arranged on both sides of the packaging box. The air port and the top of the packaging box are located at the same height. A plurality of hot-melt sealing rings are arranged directly above the packaging box. The hot-melt sealing rings are evenly arranged in a ring shape. After the fruit is placed in the packaging box, the air port is moved to the top of the side wall of the packaging box. The hot-melt sealing ring first performs film sealing and sealing treatment on the position above the packaging box where the air port is not provided. After the protective gas is injected into the packaging box from the air port, the hot-melt sealing ring performs film sealing and sealing treatment on the remaining position of the packaging box after the air port is removed.

[0007] Preferably, the packaging mechanism also includes a conveying roller, and a plurality of the conveying rollers are rotatably cooperated on the body, and the conveying rollers are evenly arranged and distributed at the same height. A conveyor belt is tensioned on the overall conveying roller, and the conveyor belt drives the packaging box to move. A conveying motor is fixedly installed on the body, and traction wheels are fixedly installed on the shaft of the conveying motor and the shaft of a single conveying roller. A first belt is tensioned on the traction wheel on the shaft of the conveying motor and the traction wheel on the shaft of a single conveying roller, and a limit baffle is fixedly installed on the body, and the limit baffle is divided into two parts and symmetrically arranged on both sides of the conveying belt, and the limit baffle is adjacent to both sides of the top surface of the conveying belt.

[0008] Preferably, a first slide rail is fixedly mounted on the machine body, the first slide rail is located directly above one end of the conveyor belt, the direction of the first slide rail is perpendicular to the direction of the objects transferred by the conveyor belt, a first movable frame is slidably fitted on the first slide rail, a first servo motor is fixedly mounted on the first movable frame, a first gear is fixedly mounted on the shaft of the first servo motor, a first rack is fixedly mounted on the first slide rail, and the first rack is meshed with the first gear.

[0009] Preferably, the funnel is fixedly mounted on the first movable frame, a plurality of dispensers are fixedly mounted on the top of the funnel, the dispensers are all connected with the funnel, a storage box is fixedly mounted on the top of the dispenser, the storage box is connected with the dispenser, the top of the storage box is an open end, a distribution leaf is rotatably mounted inside the dispenser, the distribution leaf is a five-leaf structure, the size of the distribution leaf is matched with the interior of the dispenser, the axis of the distribution leaf passes through the top of the dispenser, a plurality of first stepper motors are fixedly mounted on the first movable frame, and each of the first stepper motors is respectively connected to the power of each of the distribution leaves.

[0010] Preferably, an auxiliary table is fixedly arranged next to the machine body, the auxiliary table is adjacent to the machine body, a screw rod is rotatably engaged on the auxiliary table, a push plate is slidably engaged on the top surface of the auxiliary table, the push plate passes through the top wall of the auxiliary table, the screw rod passes through the push plate, the screw rod and the push plate are spirally engaged, a second stepper motor is fixedly mounted on the machine body, traction wheels are fixedly mounted on the shafts of the second stepper motor and the screw rod, and a second belt is tensioned on the traction wheel on the shaft of the second stepper motor and the traction wheel on the screw rod shaft.

[0011] Preferably, a second slide rail is provided on the machine body, one end of the second slide rail is fixedly mounted on the machine body, one end of the second slide rail is located directly above the other end of the conveyor belt, the other end of the second slide rail is fixedly mounted on the auxiliary table, a second movable frame is slidably fitted on the second slide rail, a second servo motor is fixedly mounted on the second movable frame, a second gear is fixedly mounted on the shaft of the second servo motor, a second rack is fixedly mounted on the second slide rail, the second rack is meshed with the second gear, a hydraulic rod is fixedly mounted on the second movable frame, a push rod of the hydraulic rod is located at the bottom, a vacuum suction cup is fixedly mounted on the push rod of the hydraulic rod, and the vacuum suction cup is used for vacuum adsorbing the packaging box to move the packaging box from the auxiliary table to the conveyor belt.

[0012] Preferably, the auxiliary mechanism also includes a screw, and the two screws are rotatably engaged on the limit baffles on both sides respectively, and the two screws are respectively located on both sides of the packaging box, and sliding parts are sleeved on the screws, and the sliding parts are spirally engaged with the screws, and the sliding parts are slidably engaged with the limit baffles, and the air ports are fixedly installed on the sliding parts, and the air ports are opposite to the packaging box, and linkage gears are fixedly installed on the axes of the screws, and auxiliary gears are rotatably engaged on the limit baffles, and the auxiliary gears are meshed with the linkage gear on one side, and two linkage racks are fixedly installed on the first movable frame, and the linkage racks are respectively meshed with the auxiliary gear and the linkage gear on the other side.

[0013] Preferably, a telescopic connecting tube is fixedly installed on the gas port on one side, one end of the telescopic connecting tube is connected to the gas port, the other end of the telescopic connecting tube is fixedly connected to the fresh-keeping gas delivery pipe, and the other end of the telescopic connecting tube is connected to the fresh-keeping gas delivery pipe, and the fresh-keeping gas delivery pipe is used to deliver protective gas.

[0014] Preferably, a feed roller is rotatably cooperated with the body, and a winding roller is rotatably cooperated with the body, the feed roller and the winding roller are symmetrically distributed at the bottom of the two sides of the packaging box, and the shafts of the feed roller and the winding roller are clamped with couplings, so that the feed roller and the winding roller can be removed from the body, and a driving motor is fixedly installed on the body, and a gear roller is fixedly installed on the shaft of the driving motor, and the coupling is provided with teeth, and a gear belt is tensioned on the gear roller and the overall coupling, and a plurality of guide rollers are rotatably cooperated with the body, and the guide rollers are symmetrically distributed above the two sides of the packaging box, and the guide rollers on both sides are respectively located directly above the feed roller and the winding roller, and a plurality of gas rods are fixedly installed on the body, and the gas rods are all located directly above the packaging box, and the gas rods are dynamically connected to the hot melt sealing ring.

[0015] A packaging method for preserving fruits uses the above packaging equipment.

[0016] Compared with the prior art, the present invention provides a packaging device with the following beneficial effects: 1. The packaging equipment puts the packaging box on the machine body first, and the machine body moves the packaging box to the bottom of the funnel, and then the funnel leaks the fruit into the packaging box, so that the fruit is put into the packaging box, and then the air port is started, and the air port is moved to the upper side wall of the packaging box, and then the hot melt sealing ring is started, and the hot melt sealing ring first performs film sealing treatment on the position above the packaging box where there is no air port, and waits for the protective gas to be injected into the packaging box from the air port. After the air port is moved away, the hot melt sealing ring performs film sealing treatment on the remaining position of the packaging box, so that the fruit is packaged and the fruit is preserved at the same time, and the fruit is partially sealed during the preservation treatment, and the unidirectionality of the gas flow of the pores is used to make the injected protective gas stay in the packaging box, so as to avoid the escape of the protective gas and the waste of the protective gas, thereby greatly reducing the production cost of fruit packaging; 2. The packaging equipment, through the setting of the distributor, enables different fruits to be distributed in different storage boxes by the distributor in quantity. By rotating the distribution blade, different kinds of fruits are moved in the distributor to be put into the packaging box according to the quantity, so as to accurately control the quantity of different kinds of fruits in a single packaging box, improve the accuracy and precision of the packaging equipment control, and improve the stability of the equipment operation; 3. The packaging equipment, through the cooperation of the auxiliary table and the vacuum sucker, puts the packaging boxes on the conveyor belt one by one, so that the packaging boxes form an automatic assembly line to package fruits, thereby improving the production efficiency of the packaging equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the packaging equipment of the present invention; Figure 2 It is a schematic diagram of the packaging mechanism structure of the present invention; Figure 3 It is a schematic diagram of the structure distribution of the conveyor belt of the present invention; Figure 4 This is a schematic diagram of the internal structure distribution of the distributor of the present invention; Figure 5 This is a schematic diagram of the structure distribution of the auxiliary platform of the present invention; Figure 6 It is a schematic diagram of the auxiliary mechanism structure of the present invention; Figure 7 This is a schematic diagram of the structure distribution of the hot melt sealing ring of the present invention; Figure 8 It is a schematic diagram of the structural distribution of the screw rod of the present invention.

[0018] In the figure: 1, machine body; 2, packaging mechanism; 21, conveying roller; 22, conveying belt; 23, conveying motor; 24, first belt; 25, limit baffle; 26, first slide rail; 27, first moving frame; 28, first servo motor; 29, first gear; 210, first rack; 211, distributor; 212, funnel; 213, storage box; 214, distribution leaf; 215, first stepping motor; 216, auxiliary table; 217, lead screw; 218, push plate; 219, second stepping motor; 220, second belt; 221, second slide rail; 222, second moving Frame; 223, second servo motor; 224, second gear; 225, second rack; 226, hydraulic rod; 227, vacuum suction cup; 228, packaging box; 3, auxiliary mechanism; 31, screw; 32, sliding member; 33, air port; 34, linkage gear; 35, auxiliary gear; 36, linkage rack; 37, telescopic connecting pipe; 38, fresh-keeping gas delivery pipe; 39, feeding roller; 310, winding roller; 311, coupling; 312, driving motor; 313, gear roller; 314, toothed belt; 315, guide roller; 316, gas rod; 317, hot-melt sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a packaging device and a packaging method for preserving fruits.

[0021] Example 1 In a typical implementation of the present application, Figure 1 As shown, a packaging device includes a body 1, a packaging mechanism 2 arranged on the body 1, and an auxiliary mechanism 3 arranged on the body 1, wherein the packaging mechanism 2 includes a funnel 212 and a packaging box 228, the body 1 is provided with the funnel 212, the body 1 is provided with the packaging box 228, the packaging box 228 is transferred on the body 1 to the bottom of the funnel 212, and the funnel 212 puts fruits into the packaging box 228; The auxiliary mechanism 3 includes an air port 33 and a hot-melt sealing ring 317. The two air ports 33 are respectively arranged on both sides of the packaging box 228. The air ports 33 and the top of the packaging box 228 are located at the same height. Multiple hot-melt sealing rings 317 are all arranged directly above the packaging box 228. The hot-melt sealing rings 317 are evenly arranged in a ring shape. After the fruit is placed in the packaging box 228, the air port 33 moves to the top of the side wall of the packaging box 228. The hot-melt sealing ring 317 first performs a film sealing treatment on the position above the packaging box 228 where there is no air port 33. After the protective gas is injected into the packaging box 228 from the air port 33, after the air port 33 is moved away, the hot-melt sealing ring 317 performs a film sealing treatment on the remaining position of the packaging box 228.

[0022] When using the present invention: First, the packaging box 228 is placed on the machine body 1, and the machine body 1 moves the packaging box 228 to the bottom of the funnel 212, and then the funnel 212 drains the fruits into the packaging box 228, so that the fruits are loaded into the packaging box 228, and then the air port 33 is started, and the air port 33 is moved to the top of the side wall of the packaging box 228, and then the hot melt sealing ring 317 is started, and the hot melt sealing ring 317 first performs a film sealing treatment on the position above the packaging box 228 where there is no air port 33, and waits for the protective gas to be injected into the packaging box 228 from the air port 33. After the air port 33 is moved away, the hot melt sealing ring 317 performs a film sealing treatment on the remaining position of the packaging box 228, so that the fruits are packaged and preserved at the same time, and the fruits are partially sealed during the preservation treatment, and the unidirectionality of the gas flow in the pores is utilized to make the injected protective gas stay in the packaging box 228, so as to avoid the protective gas from escaping and the waste of the protective gas, thereby greatly reducing the production cost of fruit packaging.

[0023] Example 2 like Figure 2-Figure 5 As shown, the difference from the above embodiment is that the packaging mechanism 2 also includes a conveying roller 21, and a plurality of conveying rollers 21 are rotatably cooperated on the body 1, and the conveying rollers 21 are evenly arranged and distributed at the same height. A conveyor belt 22 is tensioned on the overall conveying roller 21, and the conveyor belt 22 drives the packaging box 228 to be transferred. A conveying motor 23 is fixedly installed on the body 1, and traction wheels are fixedly installed on the shaft of the conveying motor 23 and the shaft of a single conveying roller 21. A first belt 24 is tensioned on the traction wheel on the shaft of the conveying motor 23 and the traction wheel on the shaft of the single conveying roller 21, and a limit baffle 25 is fixedly installed on the body 1. The limit baffle 25 is divided into two parts and is symmetrically arranged on both sides of the conveying belt 22, and the limit baffle 25 is adjacent to both sides of the top surface of the conveying belt 22.

[0024] Furthermore, a first slide rail 26 is fixedly installed on the machine body 1, and the first slide rail 26 is located directly above one end of the conveyor belt 22. The direction of the first slide rail 26 is perpendicular to the direction of the objects transferred by the conveyor belt 22. A first movable frame 27 is slidably matched on the first slide rail 26, and a first servo motor 28 is fixedly installed on the first movable frame 27. A first gear 29 is fixedly installed on the shaft of the first servo motor 28. A first rack 210 is fixedly installed on the first slide rail 26, and the first rack 210 is meshed with the first gear 29.

[0025] Furthermore, a funnel 212 is fixedly mounted on the first movable frame 27, and a plurality of dispensers 211 are fixedly mounted on the top of the funnel 212, and the dispensers 211 are all connected to the funnel 212. A storage box 213 is fixedly mounted on the top of the dispenser 211, and the storage box 213 is all connected to the dispenser 211, and the top of the storage box 213 is an open end. A distribution leaf 214 is rotatably mounted inside the dispenser 211, and the distribution leaf 214 is a five-leaf structure. The size of the distribution leaf 214 is adapted to the interior of the dispenser 211, and the axis of the distribution leaf 214 passes through the top of the dispenser 211. A plurality of first stepper motors 215 are fixedly mounted on the first movable frame 27, and each first stepper motor 215 is respectively connected to each distribution leaf 214 in power.

[0026] Furthermore, an auxiliary table 216 is fixedly provided next to the machine body 1, and the auxiliary table 216 is adjacent to the machine body 1. A screw rod 217 is rotatably engaged on the auxiliary table 216, and a push plate 218 is slidably engaged on the top surface of the auxiliary table 216. The push plate 218 penetrates the top wall of the auxiliary table 216, and the screw rod 217 penetrates the push plate 218. The screw rod 217 and the push plate 218 are spirally engaged. A second stepper motor 219 is fixedly installed on the machine body 1, and traction wheels are fixedly installed on the shafts of the second stepper motor 219 and the screw rod 217. A second belt 220 is tensioned on the traction wheels on the shaft of the second stepper motor 219 and the traction wheels on the shaft of the screw rod 217.

[0027] Furthermore, a second slide rail 221 is provided on the body 1, one end of the second slide rail 221 is fixedly installed on the body 1, one end of the second slide rail 221 is located directly above the other end of the conveyor belt 22, and the other end of the second slide rail 221 is fixedly installed on the auxiliary table 216. A second movable frame 222 is slidably matched on the second slide rail 221, a second servo motor 223 is fixedly installed on the second movable frame 222, a second gear 224 is fixedly installed on the shaft of the second servo motor 223, a second rack 225 is fixedly installed on the second slide rail 221, and the second rack 225 is meshed with the second gear 224, a hydraulic rod 226 is fixedly installed on the second movable frame 222, a push rod of the hydraulic rod 226 is located at the bottom, and a vacuum suction cup 227 is fixedly installed on the push rod of the hydraulic rod 226, and the vacuum suction cup 227 is used for vacuum adsorption of the packaging box 228 to move the packaging box 228 from the auxiliary table 216 to the conveyor belt 22.

[0028] Example 3 like Figure 6-Figure 8As shown, the difference from the above-mentioned embodiment is that the auxiliary mechanism 3 also includes a screw 31, and the two screws 31 are respectively rotatably engaged with the limit baffles 25 on both sides, and the two screws 31 are respectively located on both sides of the packaging box 228, and a sliding member 32 is sleeved on the screw 31, and the sliding member 32 is spirally engaged with the screw 31, and the sliding member 32 is slidably engaged with the limit baffle 25, and an air port 33 is fixedly installed on the sliding member 32, and the air port 33 is opposite to the packaging box 228, and a linkage gear 34 is fixedly installed on the axis of the screw 31, and an auxiliary gear 35 is rotatably engaged on the limit baffle 25, and the auxiliary gear 35 is meshed with the linkage gear 34 on one side, and two linkage racks 36 are fixedly installed on the first movable frame 27, and the linkage racks 36 are respectively meshed with the auxiliary gear 35 and the linkage gear 34 on the other side.

[0029] Furthermore, a telescopic connecting tube 37 is fixedly installed on the gas port 33 on one side, one end of the telescopic connecting tube 37 is connected to the gas port 33, and the other end of the telescopic connecting tube 37 is fixedly connected to the fresh-keeping gas delivery pipe 38, and the other end of the telescopic connecting tube 37 is connected to the fresh-keeping gas delivery pipe 38, which is used to transport protective gas.

[0030] Furthermore, a feed roller 39 is rotatably mounted on the machine body 1, and a take-up roller 310 is rotatably mounted on the machine body 1. The feed roller 39 and the take-up roller 310 are symmetrically distributed below the two sides of the packaging box 228. A coupling 311 is clamped on the shafts of the feed roller 39 and the take-up roller 310 so that the feed roller 39 and the take-up roller 310 can be removed from the machine body 1. A drive motor 312 is fixedly mounted on the machine body 1, and a gear roller 313 is fixedly mounted on the shaft of the drive motor 312. The coupling 311 is clamped on the shafts of the feed roller 39 and the take-up roller 310 so that the feed roller 39 and the take-up roller 310 can be removed from the machine body 1. 1 is provided with teeth, and a toothed belt 314 is tensioned on the toothed roller 313 and the integral coupling 311. A plurality of guide rollers 315 are rotatably matched on the body 1. The guide rollers 315 are symmetrically distributed above both sides of the packaging box 228. The guide rollers 315 on both sides are respectively located directly above the feeding roller 39 and the winding roller 310. A plurality of gas rods 316 are fixedly installed on the body 1. The gas rods 316 are all located directly above the packaging box 228. The gas rods 316 are dynamically connected to the hot-melt sealing ring 317.

[0031] The overall working principle of packaging equipment: First, the packaging box 228 is placed on the machine body 1, and the machine body 1 moves the packaging box 228 to the bottom of the funnel 212, and then the funnel 212 drains the fruits into the packaging box 228, so that the fruits are loaded into the packaging box 228, and then the air port 33 is started, and the air port 33 is moved to the top of the side wall of the packaging box 228, and then the hot melt sealing ring 317 is started, and the hot melt sealing ring 317 first performs a film sealing treatment on the position above the packaging box 228 where there is no air port 33, and waits for the protective gas to be injected into the packaging box 228 from the air port 33. After the air port 33 is moved away, the hot melt sealing ring 317 performs a film sealing treatment on the remaining position of the packaging box 228, so that the fruits are packaged and preserved at the same time, and the fruits are partially sealed during the preservation treatment, and the unidirectionality of the gas flow in the pores is utilized to make the injected protective gas stay in the packaging box 228, so as to avoid the protective gas from escaping and the waste of the protective gas, thereby greatly reducing the production cost of fruit packaging.

[0032] A packaging method for preserving fruits uses the above packaging equipment.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packaging device, comprising a body, a packaging mechanism arranged on the body, and an auxiliary mechanism arranged on the body, characterized in that: The packaging mechanism includes a funnel and a packaging box. The funnel is arranged on the machine body, and the packaging box is arranged on the machine body. The packaging box is moved on the machine body to the bottom of the funnel, and the funnel puts the fruit into the packaging box. The auxiliary mechanism includes an air port and a hot-melt sealing ring. The two air ports are respectively arranged on both sides of the packaging box. The air port and the top of the packaging box are located at the same height. A plurality of hot-melt sealing rings are arranged directly above the packaging box. The hot-melt sealing rings are evenly arranged in a ring shape. After the fruit is placed in the packaging box, the air port is moved to the top of the side wall of the packaging box. The hot-melt sealing ring first performs film sealing and sealing treatment on the position above the packaging box where the air port is not provided. After the protective gas is injected into the packaging box from the air port, the hot-melt sealing ring performs film sealing and sealing treatment on the remaining position of the packaging box after the air port is removed.

2. A packaging device according to claim 1, characterized in that: The packaging mechanism also includes a conveying roller, a plurality of the conveying rollers are rotatably matched on the body, the conveying rollers are evenly arranged and distributed at the same height, a conveying belt is tensioned on the overall conveying roller, and the conveying belt drives the packaging box to be transferred, a conveying motor is fixedly installed on the body, a traction wheel is fixedly installed on the shaft of the conveying motor and the shaft of a single conveying roller, a first belt is tensioned on the traction wheel on the shaft of the conveying motor and the traction wheel on the shaft of a single conveying roller, a limit baffle is fixedly installed on the body, the limit baffle is divided into two parts and is symmetrically arranged on both sides of the conveying belt, and the limit baffle is adjacent to both sides of the top surface of the conveying belt.

3. A packaging device according to claim 2, characterized in that: A first slide rail is fixedly mounted on the machine body, the first slide rail is located directly above one end of the conveyor belt, the direction of the first slide rail is perpendicular to the direction of the objects transferred by the conveyor belt, a first moving frame is slidably fitted on the first slide rail, a first servo motor is fixedly mounted on the first moving frame, a first gear is fixedly mounted on the shaft of the first servo motor, a first rack is fixedly mounted on the first slide rail, and the first rack is meshed with the first gear.

4. A packaging device according to claim 3, characterized in that: The funnel is fixedly mounted on the first movable frame, and a plurality of distributors are fixedly mounted on the top of the funnel, and the distributors are all connected with the funnel. A material storage box is fixedly mounted on the top of the distributor, and the material storage box is connected with the distributor, and the top of the material storage box is an open end. A distribution leaf is rotatably mounted inside the distributor, and the distribution leaf is a five-leaf structure. The size of the distribution leaf is adapted to the interior of the distributor, and the axis of the distribution leaf passes through the top of the distributor. A plurality of first stepper motors are fixedly mounted on the first movable frame, and each of the first stepper motors is respectively connected to the power of each of the distribution leaves.

5. A packaging device according to claim 4, characterized in that: An auxiliary table is fixedly arranged beside the machine body, the auxiliary table is adjacent to the machine body, a screw rod is rotatably engaged on the auxiliary table, a push plate is slidably engaged on the top surface of the auxiliary table, the push plate passes through the top wall of the auxiliary table, the screw rod passes through the push plate, the screw rod and the push plate are spirally engaged, a second stepper motor is fixedly installed on the machine body, traction wheels are fixedly installed on the shafts of the second stepper motor and the screw rod, and a second belt is tensioned on the traction wheel on the shaft of the second stepper motor and the traction wheel on the screw rod shaft.

6. A packaging device according to claim 5, characterized in that: The machine body is provided with a second slide rail, one end of the second slide rail is fixedly mounted on the machine body, one end of the second slide rail is located directly above the other end of the conveyor belt, the other end of the second slide rail is fixedly mounted on the auxiliary table, a second movable frame is slidably matched on the second slide rail, a second servo motor is fixedly mounted on the second movable frame, a second gear is fixedly mounted on the shaft of the second servo motor, a second rack is fixedly mounted on the second slide rail, the second rack is meshed with the second gear, a hydraulic rod is fixedly mounted on the second movable frame, a push rod of the hydraulic rod is located at the bottom, a vacuum suction cup is fixedly mounted on the push rod of the hydraulic rod, and the vacuum suction cup is used for vacuum adsorbing the packaging box to move the packaging box from the auxiliary table to the conveyor belt.

7. A packaging device according to claim 6, characterized in that: The auxiliary mechanism also includes a screw rod, and the two screw rods are respectively rotatably engaged with the limit baffles on both sides, and the two screw rods are respectively located on both sides of the packaging box, and sliding parts are sleeved on the screw rods, and the sliding parts are spirally engaged with the screw rods, and the sliding parts are slidably engaged with the limit baffles. The air ports are fixedly installed on the sliding parts, and the air ports are opposite to the packaging box. Linkage gears are fixedly installed on the shafts of the screw rods, and auxiliary gears are rotatably engaged with the limit baffles, and the auxiliary gears are meshed with the linkage gear on one side. Two linkage racks are fixedly installed on the first movable frame, and the linkage racks are respectively meshed with the auxiliary gear and the linkage gear on the other side.

8. A packaging device according to claim 7, characterized in that: A telescopic connecting tube is fixedly installed on the gas port on one side, one end of the telescopic connecting tube is connected to the gas port, the other end of the telescopic connecting tube is fixedly connected to the fresh-keeping gas delivery pipe, and the other end of the telescopic connecting tube is connected to the fresh-keeping gas delivery pipe, and the fresh-keeping gas delivery pipe is used to deliver protective gas.

9. A packaging device according to claim 8, characterized in that: The machine body is rotatably equipped with a feed roller, and the machine body is rotatably equipped with a winding roller, the feed roller and the winding roller are symmetrically distributed at the lower sides of the packaging box, the shafts of the feed roller and the winding roller are both clamped with couplings, so that the feed roller and the winding roller can be removed from the machine body, a driving motor is fixedly installed on the machine body, a gear roller is fixedly installed on the shaft of the driving motor, the coupling is provided with teeth, a gear belt is tensioned on the gear roller and the overall coupling, a plurality of guide rollers are rotatably equipped on the machine body, the guide rollers are symmetrically distributed above the two sides of the packaging box, the guide rollers on both sides are respectively located directly above the feed roller and the winding roller, a plurality of gas rods are fixedly installed on the machine body, the gas rods are all located directly above the packaging box, and the gas rods are dynamically connected to the hot melt sealing ring.

10. A packaging method for preserving fruits, characterized in that: The packaging device according to any one of claims 1 to 9 is used.

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