An automatic packing machine for selling macrobrachium rosenbergii fry and a method of using the same

Abstract

The application discloses an automatic packing machine for selling macrobrachium rosenbergii fry and a use method thereof, which comprises a base, a supporting rod fixedly connected to the middle of the top end of the base, and a top plate fixedly connected to the top end of the supporting rod; a rotating support assembly, which comprises a rotating table and a support piece, the rotating table being rotationally connected to the supporting rod and located below the top plate, and the support piece being arranged on the rotating table and used for placing a bagging barrel; a packing assembly, which comprises a closing piece and an injection piece, the closing piece and the injection piece being arranged on the outer sidewall and the top end of the top plate respectively, and the closing piece and the injection piece being located above the support piece and arranged correspondingly with the bagging barrel respectively; and a control assembly arranged on the top end of the top plate, the rotating table, the support piece, the closing piece and the injection piece being electrically connected with the control assembly respectively. The application realizes continuous operation, constant water and air filling amount, solid sealing, and significantly reduces manual consumption.

Description

Technical Field

[0001] This invention relates to the field of giant freshwater prawn seedling sales technology, and in particular to an automatic packaging machine for giant freshwater prawn seedling sales and its usage method. Background Technology

[0002] The giant freshwater prawn (Macrobrachium rosenbergii), belonging to the family Palaemonidae and genus *Macrobrachium*, is one of the most important freshwater shrimp species in the world's aquaculture industry, possessing high nutritional and economic value. Native to Southeast Asia, it is widely distributed in the Indian and Pacific Oceans, including countries such as Bangladesh, India, Malaysia, Thailand, Vietnam, and the Philippines. Due to its strong adaptability, rapid growth, and disease resistance, many countries and regions have developed giant freshwater prawn farming industries, leading to its increasingly widespread distribution globally. my country introduced this shrimp in 1976, and its rapid growth and short farming cycle have fueled the rapid development of the industry. In 2021, my country's giant freshwater prawn production exceeded 170,000 tons, with a demand for over 40 billion seedlings, undoubtedly putting pressure on seedling sales.

[0003] The process of selling Macrobrachium rosenbergii fry mainly includes: 1. Seedling pulling (requiring 2 people): Lift the fry in the seedling rearing pond to a white round bucket (about 80 cm high and about 115 cm in diameter) with a bucket. At this time, the fry are relatively dense, and sufficient aeration should be carried out in time to prevent the fry from lacking oxygen; 2. Seedling scooping (requiring 1 person): Scoop the fry from the white round bucket into a small scoop net (about 25 cm in diameter) with a large scoop net (about 40 cm in diameter). Note that the operation should be gentle, and prevent the fry from pouring out of the small scoop net when pouring the fry; 3. Seedling filling (requiring 1 person): One hand of the seedling filling operator holds a small scoop net (the small scoop net is placed in the white round bucket with the same bucket size as above, there is a faucet above the bucket for timely water replenishment, and the part of the small scoop net with fry is immersed in the water, and the water body is kept aerated), and the other hand holds a cylindrical seedling filling cup (the handle is about 22 cm long, about 3 cm high, about 3.8 cm in diameter, and the bottom is a sieve with a pore size of about 20 to 30 meshes), and scoop out an appropriate amount of fry from the small scoop net with the seedling filling cup; 4. Water scooping (requiring 1 person): Scoop about nine-tenths full of water with a cylindrical water ladle (about 105 cm high and about 22 cm in diameter). The seedling filling operator puts the filled fry into the water ladle; 5. Bag stretching (requiring 1 person): Place the double-layer plastic bag for loading fry (the bottom is about square, and about cylindrical after filling with water, with a total length of about 54 cm and a width of about 35 cm) in a place where the bag stretching operator can easily reach. One end of the bag mouth is close to the hand of the bag stretching operator. When the fry are put into the water ladle, stretch the bag mouth of the loading bag into an approximately rectangular shape to facilitate the water scooping operator to pour the water and fry into the loading bag; 6. Bag handing (requiring 1 person): Hand the bag filled with water and fry to the packing operator; 7. Packing (requiring 5 people): The packing operation table (about 245 cm long, about 121 cm wide, and about 70 cm high) has a stainless steel tabletop with a layer of flannelette on it, which can protect the loading bag. There is an oxygen pipeline parallel to the long side of the tabletop in the middle above the tabletop, about 50 cm away from the tabletop. Oxygen filling hoses are installed on both sides of the oxygen pipeline at intervals of about 32 cm, about 40 cm long and about 1.5 cm in diameter. Each filling hose is controlled by a switch. The operator discharges the excess air in the loading bag, puts in the filling hose and opens the switch. After filling in an appropriate amount of oxygen, pull out the hose, rotate the upper end of the bag until the bag is in a bulging state, fold the upper end down to form a "fork" shape, put the rubber band (about 5.5 cm in flat diameter and about 0.2 cm thick) previously worn on the wrist on the intersection of the "fork" shape, as close to the root as possible, wind it around the intersection of the "fork" shape for 3 - 4 circles, pull the rubber band out from under the "fork" shape and put it on its intersection from above the "fork" shape to keep the loading bag still in a bulging state; 8. Boxing (requiring 1 person): Put 2 packed fry bags into a cardboard box (about 44 cm long, about 22 cm wide, and about 22 cm high) with the bottom previously sealed, and fasten the top in a mutually pressed manner. If shipping the fry by air, a foam box that can hold 4 fry bags is required. After sealing it with tape, put it into a large cardboard box of appropriate size (about 49 cm long, about 49 cm wide, and about 22 cm high), and seal it with tape; 9.Loading (1 person required): Move the sealed cardboard boxes onto the transport vehicle. From the above seedling distribution process, it's clear that packaging is the most complex and labor-intensive step. Manual packaging has the following drawbacks: 1. Insufficiently close-to-the-root rubber bands result in loose, insufficiently inflated seedling bags; 2. Loose rubber bands lead to air leakage, reducing oxygen levels and causing shrimp seedling hypoxia, increasing transport mortality; 3. Oxygenation is difficult to control; insufficient oxygenation leads to hypoxia, while excessive oxygenation results in overly tall bags, making sealing difficult; 4. Furthermore, sales of giant freshwater prawn seedlings often take place around 5 AM, sometimes even 2 AM, easily leading to exhaustion and complaints among sales staff, severely impacting their work motivation.

[0004] Therefore, there is an urgent need for an automatic packaging machine and its usage method for the sale of giant freshwater prawn seedlings to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic packaging machine for the sale of giant freshwater prawn seedlings and its usage method, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides an automatic packaging machine for the sale of giant freshwater prawn larvae, comprising:

[0007] A base, wherein a support rod is fixedly connected to the middle of the top of the base, and a top plate is fixedly connected to the top of the support rod;

[0008] A rotating support assembly includes a rotating platform and a support member. The rotating platform is rotatably connected to the support rod and located below the top plate. The support member is disposed on the rotating platform for placing bagged barrels.

[0009] The packaging assembly includes a sealing member and an injection member, which are respectively disposed on the outer side wall and the top of the top plate. Both the sealing member and the injection member are located above the support member and are respectively disposed corresponding to the bagging barrel.

[0010] A control component is disposed at the top of the top plate, and the rotary table, the support member, the closing member and the injection member are electrically connected to the control component.

[0011] Preferably, the top of the rotating platform is provided with a plurality of placement slots at equal intervals along the circumference, the support member includes a support slot disposed in the placement slot, the bagging barrel is located in the support slot, the bagging barrel is covered with a packing bag, and a plurality of first motors are fixedly connected at equal intervals along the axial direction at the bottom end of the rotating platform, the output shaft of the first motor extends into the rotating platform and is fixedly connected to one end of a connecting shaft, and the other end of the connecting shaft extends into the placement slot and is fixedly connected to the middle of the bottom end of the support slot.

[0012] Preferably, the injection device includes a first support rod and a water inlet tap rotatably connected at one end to the top of the top plate, a first electric telescopic rod fixedly connected to the bottom of the other end of the first support rod, an oxygen inflation tube fixedly connected to the telescopic end of the first electric telescopic rod, one end of the oxygen inflation tube extending into the packing bag inside the bagging barrel, the other end of the oxygen inflation tube being fixedly connected to the output end of the oxygen cylinder, and the output end of the water inlet tap being correspondingly set to the packing bag inside the bagging barrel.

[0013] Preferably, the closing component includes a control rod fixedly connected to the outer wall of the top plate. Three grooves are provided on the side of the control rod away from the top plate. A movable platform is fixedly connected to each of the three grooves. One end of a connecting rod is fixedly connected to each of the three movable platforms. The other end of the three connecting rods is respectively provided with a closing clamp, a sealing clamp, and a stop bar. The closing clamp, the sealing clamp, and the stop bar are respectively provided with corresponding packaging bags in the bagging barrel.

[0014] Preferably, the closing clamp includes two closing plates, both of which are semi-circular and are arranged correspondingly. One end of each of the two closing plates is rotatably connected to the connecting rod, and the packaging bag is located between the two closing plates.

[0015] Preferably, one of the sealing plates is attached to the top of the bagging barrel, and the other sealing plate is located above the sealing plate on the bagging barrel.

[0016] Preferably, the control component is a PLC controller.

[0017] A method for using an automatic packaging machine for the sale of giant freshwater prawn larvae includes the following steps:

[0018] S1. Place the packing bag onto the bagging barrel, and then place the bagging barrel into the support groove;

[0019] S2. Water is injected into the packing bag by controlling the water inlet faucet through the control component. The seedling personnel put the seedlings into the packing bag and oxygen is delivered into the packing bag by controlling the oxygen inflation pipe and the closing clamp.

[0020] S3. Control the closing clamps to close the packaging bag in S2 using the control component, and then seal the packaging bag using the sealing clamps.

[0021] S4. Take out the sealed packaging bag and simultaneously control the rotating table to achieve the connection packaging operation.

[0022] Preferably, the packaging bag is sealed twice in S2.

[0023] Compared with the prior art, the present invention has the following advantages and technical effects:

[0024] The present invention provides an automatic packaging machine and its method for selling giant freshwater prawn seedlings, which enables continuous operation, constant water and air volume, strong sealing, and significantly reduces labor consumption. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described 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.

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 Enlarged view of a portion of point A in the middle;

[0028] Figure 3 This is a schematic diagram showing the distribution of bagged barrels on the top surface of the rotating platform of the present invention;

[0029] Figure 4 This is a schematic diagram of the sealing plate structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the sealing component structure of the present invention;

[0031] The components include: 1. Base; 2. Support rod; 3. Top plate; 4. Rotary table; 5. Bagging barrel; 6. Placement slot; 7. Support slot; 8. First motor; 9. Connecting shaft; 10. First support rod; 11. Water inlet faucet; 12. First electric telescopic rod; 13. Oxygen filling pipe; 14. Control rod; 15. Groove; 16. Moving table; 17. Connecting rod; 18. Closing pliers; 19. Sealing pliers; 20. Stop bar; 21. PLC controller. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] refer to Figures 1-5This invention provides an automatic packaging machine for the sale of giant freshwater prawn larvae, comprising:

[0035] A base 1, a support rod 2 is fixedly connected to the middle of the top of the base 1, and a top plate 3 is fixedly connected to the top of the support rod 2;

[0036] The rotating support assembly includes a rotating platform 4 and a support member. The rotating platform 4 is rotatably connected to the support rod 2 and located below the top plate 3. The support member is set on the rotating platform 4 for placing the bagged barrel 5.

[0037] The packaging assembly includes a sealing component and an injection component, which are respectively installed on the outer side wall and top of the top plate 3. Both the sealing component and the injection component are located above the support component and are respectively installed corresponding to the bagging barrel 5.

[0038] The control component is located at the top of the top plate 3. The rotary table 4, the support component, the closing component, and the injection component are electrically connected to the control component.

[0039] The scheme is further optimized. The top of the rotary table 4 is provided with several placement slots 6 at equal intervals along the circumference. The support component includes a support slot 7 set in the placement slot 6. The bagging barrel 5 is located in the support slot 7. The bagging barrel 5 is covered with a packing bag. Several first motors 8 are fixedly connected at equal intervals along the axial direction at the bottom of the rotary table 4. The output shaft of the first motor 8 extends into the rotary table 4 and is fixedly connected to one end of a connecting shaft 9. The other end of the connecting shaft 9 extends into the placement slot 6 and is fixedly connected to the middle of the bottom of the support slot 7.

[0040] Several bagging barrels 5 are placed on the rotating table 4. A ring toothed plate is fixedly connected to the bottom of the rotating table 4. A second motor is fixedly connected to the support rod 2. A drive gear is fixedly connected to the output shaft of the second motor. The drive gear meshes with the ring toothed plate. The second motor is controlled to rotate by the control component, which drives the rotating table 4 to rotate. The several bagging barrels 5 on the rotating table 4 realize continuous packaging operations. At the same time, the first motor 8 can drive the support groove 7 to rotate, realize the rotation of the packaging bag, and further improve the sealing performance with the sealing piece.

[0041] The solution is further optimized. The injection component includes a first support rod 10 and a water inlet faucet 11, one end of which is rotatably connected to the top of the top plate 3. The bottom of the other end of the first support rod 10 is fixedly connected to a first electric telescopic rod 12. The telescopic end of the first electric telescopic rod 12 is fixedly connected to an oxygen inflation pipe 13. One end of the oxygen inflation pipe 13 extends into the packaging bag inside the bagging barrel 5, and the other end of the oxygen inflation pipe 13 is fixedly connected to the output end of the oxygen cylinder. The output end of the water inlet faucet 11 is correspondingly set to the packaging bag inside the bagging barrel 5.

[0042] The water inlet faucet 11 is rotatably connected to the top plate 3. The water inlet faucet 11 is manually rotated to align with the packaging bag. The water inlet faucet 11 is controlled by the control component to inject water into the packaging bag. The oxygen inflation tube 13 is rotated to the top of the packaging bag via the rotating first support rod 10. The first electric telescopic rod 12 is controlled by the control component to drive the oxygen tube inflation 13 to extend into the packaging bag for oxygen delivery. The preferred model of the first electric telescopic rod 12 is the L3368 electric telescopic rod.

[0043] Further optimize the plan, refer to Figure 5 The closing component includes a control rod 14 fixedly connected to the outer wall of the top plate 3. Three grooves 15 are provided on the side of the control rod 14 away from the top plate 3. A movable platform 16 is fixedly connected to each groove 15. One end of a connecting rod 17 is fixedly connected to each of the three movable platforms 16. The other end of the three connecting rods 17 is respectively provided with a closing clamp 18, a sealing clamp 19, and a stop bar 20. The closing clamp 18, the sealing clamp 19, and the stop bar 20 are respectively set to correspond to the packing bags in the bagging barrel 5.

[0044] The moving platform 16 drives the connecting rod 17 to move, and the closing clamp 18 closes the packaging bag, the sealing clamp 19 seals the packaging bag, and the stop bar 20 blocks the packaging bag during sealing, thereby realizing automatic closing and sealing of the packaging bag and reducing manual labor.

[0045] The specific moving stage 16 is a dual-axis moving platform. The specific specifications and models can be selected by those skilled in the art according to actual needs. No specific limitations are made here. The moving stage 16 is controlled by the control component to drive the connecting rod 17 to move.

[0046] The preferred sealing pliers model 19 is the SDZKJ sealing machine.

[0047] After the water is packed into the bag, the closing clamp 18 retracts inward, the oxygen filling tube 13 inflates and rises, and the sliding table of the dual-axis moving table drives the closing clamp 18 to rise to a suitable position to tighten the bag opening. The sealing clamp 19 rises to extend and seal the bag tightly below the closing clamp 18. After sealing, it retracts. Then, the closing clamp 18 slightly loosens and moves upward to a suitable position to close the bag. The bagging barrel 5 rotates, making the first sealing point and the second closing point form a spiral rope shape. Then, the stop bar 20 moves to the middle position of the rope. The stop bar 20 is driven to rotate by a separate control motor. When rotating, it contacts the rope and continues to rotate, making the rope slightly shaped like a <. The closing clamp 18 moves down to near the first sealing position, making the rope roughly shaped like a 'U'. Then, the sealing clamp 19 extends to the upper part of the intersection of the 'U' to perform a second sealing.

[0048] The design is further optimized. The closing clamp 18 includes two closing plates, both of which are semi-circular structures and are set accordingly. One end of each closing plate is rotatably connected to the connecting rod 17, and the packaging bag is located between the two closing plates.

[0049] The closing clamp 18 consists of two semi-circular closing plates. Two third motors are fixedly connected to the connecting rod 17. The closing plates are rotatably connected to the connecting rod 17 through the output shaft of the third motors. The control component controls the rotation of the two third motors to drive the two closing plates to move towards each other, thereby clamping and closing the packaging bag.

[0050] The design is further optimized so that one of the sealing plates is attached to the top of the bagging barrel 5, and the other sealing plate is located above the sealing plate on the bagging barrel 5.

[0051] The two finishing plates are staggered, with one above the other. After they cross, they create an inward curve of two semi-circular structures, ensuring a neat and secure finish.

[0052] The scheme was further optimized, and the control component was set as PLC controller 21.

[0053] The PLC controller 21 is existing technology. The specific specifications and models can be selected by those skilled in the art according to actual needs, and no specific limitations are made here.

[0054] A method for using an automatic packaging machine for the sale of giant freshwater prawn larvae includes the following steps:

[0055] S1. Place the packing bag onto the bagging barrel 5, and place the bagging barrel 5 into the support groove 7;

[0056] One person is required to put the bag on the bagging cylinder 5 and place the bagging cylinder 5 with the bag on it into the support groove 7.

[0057] S2. Water is injected into the packing bag by controlling the water inlet faucet 11 through the control component. The seedling personnel put the seedlings into the packing bag and oxygen is delivered into the packing bag by controlling the oxygen inflation pipe 13 and the closing clamp 18.

[0058] The PLC controller 21 controls the water inlet tap 11 to rotate to the packaging bag to inject water. A person is selected to perform the frying. An appropriate amount of fry is put into the packaging bag. After the fry are placed, the PLC controller 21 controls the first support rod 10 to rotate to the top of the packaging bag. The first electric telescopic rod 12 is controlled to drive the oxygen inflation pipe 13 to extend into the packaging bag for oxygenation.

[0059] During the specific oxygenation process, the oxygen filling pipe 13 is lowered to the bottom near the water surface of the packing bag, and the closing clamp 18, which is close to the upper edge of the bagging barrel 5, is tightened inward to expel air and move upward to a suitable position. The oxygen filling pipe 13 moves upward while filling with air, until it reaches the upper end of the closing clamp 18.

[0060] S3. The closing clamp 18 is controlled by the control component to close the packaging bag in S2, and the packaging bag is sealed by the sealing clamp 19 after closing.

[0061] After the oxygen filling tube 13 is removed, the closing clamp 18 immediately tightens, and after tightening, the sealing clamp 19 is extended to seal the packaging bag.

[0062] S4. Take out the sealed packaging bag and simultaneously control the rotary table 4 to rotate to achieve the connection packaging operation.

[0063] After sealing, the packaging bag is removed, and at the same time, the rotating table 4 rotates to fill and package the next packaging bag, thus realizing continuous packaging operation.

[0064] The scheme has been further optimized so that the packaging bag is sealed twice in S2.

[0065] The sealing clamp 19, which is close to the lower end of the sealing clamp 18, extends and completes the first sealing. After the first sealing, the sealing clamp 18 loosens slightly and continues to tighten the upper part of the bag at the appropriate position. The bagging barrel 5 is rotated so that the first sealing point and the tightening point of the sealing clamp 18 form a spiral rope shape. At this time, the stop bar 20 extends out and blocks the middle of the spiral rope. The sealing clamp 18 moves down so that the spiral rope is roughly in the shape of an "U". The sealing clamp 19 extends from above the sealing clamp 18 and performs a second sealing at the intersection of the "U" shape to further ensure the overall sealing effect.

[0066] Furthermore, compared with existing technologies, the use of an automatic packaging machine in this application can save the number of packaging personnel, water scooping personnel, and bag handing personnel, significantly reducing the labor consumption in the sales of giant freshwater prawn seedlings.

[0067] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0068] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An automatic packing machine for Macrobrachium rosenbergii fry sales, characterized by, Include: Base (1), the base (1) top middle fixedly connected with support rod (2), the support rod (2) top fixedly connected with top plate (3); Rotary support assembly, including rotating table (4) and support piece, the rotating table (4) is rotatably connected on the support rod (2) and is located below the top plate (3), the support piece is arranged on the rotating table (4) for placing bagging barrel (5); Packing assembly, including closing piece and injection piece, the closing piece and the injection piece are respectively arranged on the top plate (3) outer side wall and top end, the closing piece and the injection piece are located above the support piece and are respectively arranged corresponding to the bagging barrel (5); Control assembly, arranged on the top plate (3) top end, the rotating table (4), the support piece, the closing piece and the injection piece are respectively electrically connected with the control assembly;The closing piece includes control lever (14) fixedly connected on the top plate (3) outer side wall, the control lever (14) is provided with three recesses (15) on the side away from the top plate (3), the recess (15) is fixedly connected with moving table (16), three moving tables (16) are respectively fixedly connected with one end of connecting rod (17), three connecting rods (17) are respectively provided with closing pincers (18), sealing pincers (19) and blocking rod (20) on the other end, the closing pincers (18), the sealing pincers (19) and the blocking rod (20) are respectively arranged corresponding to the packing bag in the bagging barrel (5);The closing pincers (18) include two closing plates, two closing plates are semicircular structure and are arranged correspondingly, two closing plates are rotatably connected on the connecting rod (17) on one end, the packing bag is located between two closing plates, and two closing plates are staggered; The number of times of sealing the packing bag is twice, the sealing pincers (19) close to the lower end of the closing pincers (18) are stretched out and complete the first sealing, after the first sealing, the closing pincers (18) are slightly loose and continue to gather the upper bag end of the sealing to move to the appropriate position and tighten, the bagging barrel (5) is rotated, so that the first sealing part and the closing part of the closing pincers (18) are in the shape of a spiral rope, at this time, the blocking rod (20) is stretched out and blocked in the middle of the spiral rope, the closing pincers (18) are moved down, so that the spiral rope is in the shape of "Y", and the sealing pincers (19) are stretched out from above the closing pincers (18) and sealed twice at the intersection of the "Y" shape.

2. An automatic packing machine for selling Macrobrachium rosenbergii fry according to claim 1, characterized in that: The rotating table (4) top end is provided with a plurality of placing grooves (6) along the circumference at equal intervals, the support piece includes support groove (7) arranged in the placing groove (6), the bagging barrel (5) is located in the support groove (7), the bagging barrel (5) is provided with a packing bag, the rotating table (4) bottom end is fixedly connected with a plurality of first motors (8) along the axial direction at equal intervals, the output shaft of the first motor (8) is fixedly connected with one end of the connecting shaft (9) which is inserted into the rotating table (4), the other end of the connecting shaft (9) is inserted into the placing groove (6) and fixedly connected with the bottom middle part of the support groove (7).

3. The automatic packing machine for selling of Macrobrachium rosenbergii fry according to claim 2, characterized in that: The injection part comprises a first supporting rod (10) and a water inlet faucet (11) rotatably connected at the top end of the top plate (3), the other end of the first supporting rod (10) is fixedly connected with a first electric telescopic rod (12), the telescopic end of the first electric telescopic rod (12) is fixedly connected with an oxygen inflation pipe (13), one end of the oxygen inflation pipe (13) extends into the packing bag in the bagging barrel (5), the other end of the oxygen inflation pipe (13) is fixedly communicated with the output end of an oxygen cylinder, and the output end of the water inlet faucet (11) is correspondingly arranged with the packing bag in the bagging barrel (5).

4. The automatic packing machine for selling of Macrobrachium rosenbergii fry according to claim 1, characterized in that: The control assembly is a PLC controller (21).

5. A method of using an automatic packing machine for selling Macrobrachium rosenbergii fry, suitable for use in an automatic packing machine for selling Macrobrachium rosenbergii fry according to claim 4, characterized in that, The method comprises the following steps: S1, the packing bag is sleeved on the bagging barrel (5), and the bagging barrel (5) is placed in the bearing groove (7); S2, the water inlet faucet (11) is controlled by the control assembly to inject water into the packing bag, the seedlings are loaded into the packing bag by the seedling loading personnel, and the oxygen inflation pipe (13) and the closing clamp (18) are controlled to deliver oxygen into the packing bag; S3, the closing clamp (18) is controlled by the control assembly to close the packing bag in S2, and the closing clamp (18) is controlled by the control assembly to close the packing bag in S2; S4, the closed packing bag is taken out, and the rotating table (4) is controlled to rotate, so that the connecting and packing operation is realized.

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