Automatic packaging device for discharging of packaging bag making machine

Abstract

The invention relates to the technical field of plastic bag packaging equipment, and particularly discloses a packaging bag making machine discharging automatic packaging device which comprises a material storage box, a discharging port is formed in the material storage box, a plurality of air outlets are formed in the material storage box, the air outlets penetrate through the material storage box, and the discharging port is communicated with the material storage box. Two collecting mechanisms used for collecting rubber bands in the material storage box are arranged at the two ends of the material storage box correspondingly, two overturning mechanisms used for overturning the material storage box are arranged on the two sides of the material storage box correspondingly, and the technical problem that an existing packaging device cannot continuously and stably output the rubber bands to bundle and package plastic bags is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic bag packaging equipment, and specifically discloses an automatic packing device for the discharge of a packaging bag-making machine. Background Art

[0002] A packaging bag-making machine is a key device that processes a roll of packaging substrate (such as plastic film, composite film, or degradable material) into bag bodies of specific specifications through an automated process. After the packaging bag-making machine completes the forming and cutting processes of plastic bags through automated continuous operation, it is usually necessary to perform secondary sorting on the loose bag bodies. The existing process requires multi-layer reciprocating folding of the finished plastic bags longitudinally to form a compact strip structure with a width of 1 / 5 - 1 / 8 of the original bag. On the basis of folding the plastic bags into long strips, in order to ensure their good shape during storage and sales and avoid problems such as spreading and deformation, rubber bands are usually used to tie the folded plastic bags at the middle position. The annular rubber band has good elasticity and toughness, and can tightly bind the folded plastic bags to form a compact whole. This tying method is not only simple to operate and low in cost, but also can effectively prevent the plastic bags from becoming loose or damaged during subsequent processing, ensuring the integrity and stability of the plastic bags, enabling them to enter the market in the best state, and meeting the needs of consumers.

[0003] For example, the invention patent with the patent application number CN111605776A discloses an automatic tying device for plastic bag production, including a rubber ring vibrating disk, a plastic bag feeding mechanism, and a tying device. The tying mechanism is arranged between the rubber ring vibrating disk and the plastic bag feeding mechanism. The tying device includes a machine case, a turntable, and a stepping motor. A PLC is arranged on the outer side of the machine case, and the stepping motor is arranged inside the machine case. The upper end of the output shaft of the stepping motor is connected to a rotating rod through a coupling, and the top end of the rotating rod passes through the top wall of the machine case and is connected to the center of the turntable. A plurality of connecting strips are evenly connected to the circumferential surface of the turntable, and the outer ends of the connecting strips are connected to a rubber band tying mechanism. Compared with the prior art, in the process of tying the folded plastic bags or rolled plastic bags with rubber bands, this plastic bag tying machine does not require manual assistance for the rubber bands to slip off, reducing the labor intensity of the operators and achieving the effect of reducing staff and increasing efficiency.

[0004] The feeding of existing tying equipment is carried out through a rubber ring vibrating disk. The vibrating disk relies on a vibrating motor to drive a spiral track to achieve the directional transportation of rubber bands. However, limited by the elastic deformation of the rubber bands, small deviations in the inner diameter or wire diameter of the rubber rings may cause them to get stuck or slip off in the unified track, exacerbating the phenomenon of feeding gaps. At the same time, it will also cause problems such as overlap, inclination, or jamming of the output rubber bands. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an automatic packing device for the discharge of a packaging bag-making machine, so as to solve the technical problem that the existing packing device cannot continuously and stably output rubber bands for bundling and packing plastic bags.

[0006] To achieve the above object, the present invention provides the following technical solution: An automatic packing device for the discharge of a packaging bag-making machine, including a storage bin, a material discharge opening is provided on the storage bin, and a plurality of air outlets are provided on the storage bin, and the plurality of air outlets penetrate through the storage bin; two collecting mechanisms for collecting rubber bands in the storage bin are respectively arranged at both ends of the storage bin; two turning mechanisms for turning the storage bin are respectively arranged on both sides of the storage bin. The rubber bands in the storage bin are collected by the collecting mechanism, and the storage bin is continuously turned by the turning mechanism, so that the rubber bands at the bottom of the storage bin can also be collected by the collecting mechanism, enabling the collecting mechanism to collect the rubber bands more quickly. The collecting mechanism collects the rubber bands one by one, which also reduces the problems of overlapping and lack of supply of the rubber bands in the later feeding.

[0007] Further, the collecting mechanism includes a first hydraulic rod, the first hydraulic rod is fixedly connected to the storage bin, a first connecting rod is fixedly connected to the telescopic end of the first hydraulic rod, a cover plate that can fit the material discharge opening is arranged on the first connecting rod, a second connecting rod is fixedly connected to the cover plate, a fixing frame is fixedly connected to the second connecting rod, a plurality of collecting rods are arranged on the fixing frame, and a blowing device is arranged on the storage bin. When the rubber bands in the storage bin are blown up and surging by the blowing mechanism, the collecting rods on the collecting mechanism collect the falling rubber bands one by one. Since the rubber bands are sleeved on the collecting rods one by one and overlapped, there will be no problem of lack of supply, and continuous feeding can be ensured.

[0008] Further, the blowing device includes a high-pressure blower, the high-pressure blower is fixedly connected to the storage bin, a multi-way joint is arranged at the air outlet end of the high-pressure blower, the multi-way joint is provided with a plurality of air blowing pipes, and the plurality of air blowing pipes are communicated with the storage bin. The blowing device drives the rubber bands in the storage bin to continuously surge, so that the rubber bands can fall onto the collecting rods for collection.

[0009] Further, the turning mechanism includes a connecting frame, the connecting frame is fixedly connected to the storage bin, a rotating shaft is fixedly connected to the connecting frame, the rotating shaft is rotatably connected to a support rod, and a driving device is fixedly connected to the support rod. The turning mechanism can support the storage bin to perform a 360° turn.

[0010] Further, the driving device includes a motor, the motor is arranged on the support rod, and the power output end of the motor is fixedly connected to the rotating shaft. The driving mechanism can provide a power source for the turning mechanism to drive the storage bin to turn.

[0011] Further, an extraction mechanism is provided on the support rod. The extraction mechanism includes a first robotic arm fixedly connected to the support rod. A vacuum pump is fixedly connected to the telescopic end of the first robotic arm. An extraction pipe is provided on the vacuum pump. A first cavity communicating with the suction end of the vacuum pump is formed on the extraction pipe. A second cavity having the same length as the collection rod is formed on the extraction pipe. A third cavity fitting the rubber band is formed on the extraction pipe. A number of fourth cavities for communicating the first cavity and the third cavity are formed on the extraction pipe. By using the extraction mechanism in cooperation with the collection rod, the collection rubber bands on the collection rod can be extracted one by one from top to bottom by the extraction mechanism. Since only the third cavity in the extraction pipe fits the rubber band, it can effectively reduce the use of multiple rubber bands at one time and reduce the problem of rubber band waste.

[0012] Further, a bundling mechanism is provided on the support rod. The bundling mechanism includes a mounting table fixedly connected to the support rod. A second robotic arm for clamping a plastic bag is provided on the mounting table. A limiting frame is fixedly connected to the mounting table. A second hydraulic rod is provided at the lower end of the limiting frame. A support plate is provided at the telescopic end of the second hydraulic rod. Four rubber band expansion devices for stretching and expanding the rubber band are provided on the support plate. The bundling mechanism can effectively expand the rubber bands extracted by the extraction mechanism for use.

[0013] Further, a bundling mechanism is provided on the support rod. The bundling mechanism includes a mounting table fixedly connected to the support rod. A second robotic arm for clamping a plastic bag is provided on the mounting table. A limiting frame is fixedly connected to the mounting table. A second hydraulic rod is provided at the lower end of the limiting frame. A support plate is provided at the telescopic end of the second hydraulic rod. Four rubber band expansion devices for stretching and expanding the rubber band are provided on the support plate. The rubber band can be expanded by the rubber band expansion device and then directly pushed onto the plastic bag for bundling and packing.

[0014] The working principle and beneficial effects of this solution are as follows:

[0015] When the plastic bags need to be automatically packed, after the first hydraulic rod drives the collecting rod out of the storage bin, put the rubber bands to be used into the storage bin, and then the first hydraulic rod drives the cover plate down to close the material discharging opening. Start the high-pressure blower, and the high-pressure air flow is shunted to the blowing pipes through the multi-way joint. The rubber bands in the storage bin are blown up by the blowing pipes. Driven by the high-pressure air flow blown out by the high-pressure blower, the rubber bands in the storage bin keep surging and floating. With the continuous action of the high-pressure air flow, some rubber bands will randomly fall on the collecting rod. When the collecting rod is full of rubber bands, at this time, the high-pressure blower stops working. Start the first hydraulic rod to drive the cover plate up, and the cover plate drives the collecting rod on the fixing frame out of the storage bin. Blowing up the rubber bands by the high-pressure air flow and then letting them fall onto the collecting rod can effectively prevent the phenomenon of material supply shortage and rubber band overlap during later use. The high-pressure air flow instantly blows apart the piled-up rubber bands, breaking the aggregated state formed by static electricity or entanglement, significantly reducing the complexity of manual sorting or mechanical separation. Compared with the traditional vibrating disk or mechanical claw for forced separation, the air flow blowing and natural falling process has no rigid contact, avoiding deformation, scratches or even breakage of the rubber bands caused by stretching or friction.

[0016] After the collecting rod is driven out of the storage bin, the first robotic arm raises the extraction pipe above the collecting rod, and then the first robotic arm drives the extraction pipe to move down gradually. The collecting rod gradually enters the second cavity, and the extraction pipe extracts the rubber bands on the collecting rod step by step from top to bottom for use. The rubber bands located in the third cavity are adsorbed and fixed by the vacuum pump, and then the first robotic arm drives the rubber bands in the extraction pipe to move to the bundling mechanism for bundling use. Description of the Drawings

[0017] Figure 1 Structural schematic diagram of the embodiment;

[0018] Figure 2 Exploded view of the bundling mechanism of the embodiment;

[0019] Figure 3 Cross-sectional view of the extraction pipe of the embodiment;

[0020] Figure 4 Structural schematic diagram of the flipping mechanism and the blowing mechanism of the embodiment;

[0021] Figure 5 Structural schematic diagram of the collecting mechanism of the embodiment;

[0022] Figure 6 Cross-sectional view of the embodiment;

[0023] Figure 7 Structural schematic diagram of the storage bin of the embodiment.

[0024] The labels in the attached drawings are as follows: storage bin 1, material discharge opening 2, air outlet 3, first hydraulic rod 4, first connecting rod 5, cover plate 6, second connecting rod 7, fixing frame 8, collecting rod 9, high-pressure blower 10, multi-way joint 11, air blowing pipe 12, connecting frame 13, rotating shaft 14, support rod 15, fixing table 16, motor 17, first robotic arm 18, vacuum pump 19, extraction pipe 20, first chamber 21, second chamber 22, third chamber 23, fourth chamber 24, installation table 25, second robotic arm 26, limiting frame 27, second hydraulic rod 28, support plate 29, third hydraulic rod 30, expansion plate 31, limiting rod 32, cylinder 33, tension spring 34, limiting plate 35. Detailed implementation manners

[0025] The following is a further detailed description through specific implementation manners:

[0026] Embodiment

[0027] As Figures 1 to 7 shown, an automatic packing device for discharging materials of a packaging bag making machine is disclosed, which includes a storage bin 1, two collecting mechanisms, two air blowing mechanisms, two flipping mechanisms, a driving mechanism, an extraction mechanism and a bundling mechanism. A material discharge opening 2 is provided on the storage bin 1, and the material discharge opening 2 penetrates through the storage bin 1. A number of air outlets 3 are provided on the storage bin 1. Two collecting mechanisms are respectively arranged at both ends of the storage bin 1, and the two collecting mechanisms are located at the material discharge opening 2. The two collecting mechanisms are used for collecting rubber bands in the storage bin 1. Two air blowing mechanisms are provided on the storage bin 1, and the two air blowing mechanisms are used for blowing air on the rubber bands in the storage bin 1. Two flipping mechanisms are respectively arranged on both sides of the storage bin 1, and the two flipping mechanisms are used for flipping the storage bin 1. A driving mechanism is provided on the two flipping mechanisms, and the driving mechanism is used for driving the two flipping mechanisms to rotate. An extraction mechanism is provided on the flipping mechanism, and the extraction mechanism is used for extracting the rubber bands on the collecting mechanism. A bundling mechanism is provided on the flipping mechanism, and the bundling mechanism is used for bundling and packing plastic bags, as Figure 1 and Figure 7 shown.

[0028] The collecting mechanism includes a first hydraulic rod 4, a first connecting rod 5, a cover plate 6, a second connecting rod 7, a fixing frame 8 and a number of collecting rods 9. The first hydraulic rod 4 is fixedly connected to the storage bin 1, the telescopic end of the first hydraulic rod 4 is fixedly connected to the first connecting rod 5, a cover plate 6 is arranged on the first connecting rod 5, the cover plate 6 fits with the material discharge opening 2, the second connecting rod 7 is fixedly connected to the cover plate 6, the second connecting rod 7 is located inside the storage bin 1, a fixing frame 8 is arranged on the second connecting rod 7, a number of collecting rods 9 are fixedly connected to the fixing frame 8. The bottom of the collecting rod 9 is a standardized cylindrical section, which transitions to a conical section along the axis upward with a constant curvature. The radius of the bottom cylindrical section of the collecting rod 9 strictly matches the inner radius of the target rubber band, and the maximum radius of the conical section of the collecting rod 9 is less than the inner radius of the target rubber band, as Figure 5 and Figure 6as shown

[0029] The blowing mechanism includes a high-pressure blower 10, a multi-way joint 11, a plurality of blowing pipes 12 and a plurality of protective nets. A high-pressure blower 10 is provided on the storage bin 1. A multi-way joint 11 is provided at the air outlet pipe of the high-pressure blower 10. A plurality of blowing pipes 12 are provided on the multi-way joint 11. One ends of the plurality of blowing pipes 12 are communicated with the multi-way joint 11, and the other ends of the plurality of blowing pipes 12 are communicated with the storage bin 1. A plurality of protective nets are provided on the plurality of blowing pipes 12, and the plurality of protective nets are located inside the storage bin 1, as Figure 6 shown

[0030] The flipping mechanism includes a connecting frame 13, a rotating shaft 14 and a support rod 15. A connecting frame 13 is provided on the storage bin 1. A rotating shaft 14 is fixedly connected to the connecting frame 13. A support rod 15 is provided on the rotating shaft 14, and the support rod 15 is rotatably connected to the rotating shaft 14, as Figure 4 shown

[0031] The driving mechanism includes a fixed platform 16 and a motor 17. A fixed platform 16 is fixedly connected to the support rod 15. A motor 17 is provided on the fixed platform 16. The power output shaft of the motor 17 is fixedly connected to the rotating shaft 14 through a coupling, as Figure 4 shown

[0032] The extraction mechanism includes a first robotic arm 18, a vacuum pump 19 and an extraction pipe 20. A first robotic arm 18 is provided on the support rod 15. The telescopic end of the first robotic arm 18 is fixedly connected to a vacuum pump 19. An extraction pipe 20 is provided at the suction pipe of the vacuum pump 19. A first chamber 21 is provided on the extraction pipe 20, and the first chamber 21 is communicated with the suction pipe of the vacuum pump 19. A second chamber 22 is provided on the extraction pipe 20, and the second chamber 22 penetrates the bottom of the extraction pipe 20. The length of the second chamber 22 is greater than the length of the collecting rod 9, and the radius of the second chamber 22 matches the radius of the cylindrical section at the bottom of the collecting rod 9. A third chamber 23 is provided on the extraction pipe 20, and the third chamber 23 penetrates the bottom of the extraction pipe 20. The third chamber 23 fits the rubber band. A plurality of fourth chambers 24 are provided on the extraction pipe 20. One end of the fourth chamber 24 is communicated with the first chamber 21, and the other end of the fourth chamber 24 is communicated with the third chamber 23, as Figure 1 and Figure 3 shown

[0033] The bundling mechanism includes a mounting table 25, a second robotic arm 26, a limiting frame 27, a second hydraulic rod 28, a support plate 29, and four groups of rubber band expansion devices. A mounting table 25 is provided on the support rod 15. A second robotic arm 26 is fixedly connected to the mounting table 25. A limiting frame 27 is provided on the mounting table 25. The interior of the limiting frame 27 is hollow. A second hydraulic rod 28 is provided on the mounting table 25. The second hydraulic rod 28 is located at the lower end of the limiting frame 27. The telescopic end of the second hydraulic rod 28 is fixedly connected to a support plate 29. Four groups of rubber band expansion devices are provided on the support plate 29. The four groups of rubber band expansion devices are symmetrically arranged on the support plate 29 at equal angular intervals of 90°. The four groups of rubber band expansion devices are used to stretch and expand the rubber bands, as Figure 2 shown.

[0034] The rubber band expansion device includes a third hydraulic rod 30, an expansion plate 31, a limiting rod 32, a cylinder 33, a tension spring 34, and a limiting plate 35. A third hydraulic rod 30 is provided on the support plate 29. The telescopic end of the third hydraulic rod 30 is fixedly connected to an expansion plate 31. The expansion plate 31 is located in the hollow interior of the limiting frame 27. A cylinder 33 is fixedly connected to the expansion plate 31. A slidable limiting rod 32 is provided in the cylinder 33. A tension spring 34 is provided between the cylinder 33 and the limiting rod 32. One end of the tension spring 34 is fixedly connected to the cylinder 33, and the other end of the tension spring 34 is fixedly connected to the limiting rod 32. A limiting plate 35 is provided on the limiting rod 32. The position of the limiting plate 35 is higher than that of the limiting frame 27, as Figure 2 shown.

[0035] During specific implementation:

[0036] When the produced plastic bags need to be bundled and packed with rubber bands, first start the first hydraulic rod 4 to drive the first connecting rod 5 to move upward. The first connecting rod 5 drives the cover plate 6 to move. The first connecting rod 5 drives the second connecting rod 7 to move. The second connecting rod 7 drives the fixing frame 8 and the collecting rod 9 to move upward as a whole. When the collecting rod 9 moves out of the storage box 1, place the rubber bands to be used in the storage box 1. Since there are two sets of collecting mechanisms located at the upper and lower ends of the storage box 1 respectively, when one set of collecting mechanisms flips downward, the first hydraulic rod 4 drives the cover plate 6 to close the bottom feeding port 2. At this time, the rubber bands in the storage box 1 will not fall out of the storage box 1. After placing the rubber bands to be used, the first hydraulic rod 4 drives the cover plate 6 to move downward to close the feeding port 2.

[0037] After placing rubber bands in the storage bin 1, start the high-pressure blower 10. At this time, the high-pressure blower 10 diverts the high-pressure air flow through the multi-way joint 11 to the air blowing pipe 12, and then blows up the rubber bands in the storage bin 1 through the air blowing pipe 12. The protective net on the air blowing pipe 12 can prevent the rubber bands from entering the air blowing pipe 12 when the high-pressure blower 10 stops working. Since the air outlet 3 is opened on the storage bin 1, when the high-pressure blower 10 injects high-pressure gas into the storage bin 1, the pressure balance is maintained through the air outlet 3. The high-pressure air flow blown by the high-pressure blower 10 drives the rubber bands in the storage bin 1 to continuously surge and float. With the continuous action of the high-pressure air flow, some rubber bands will randomly fall on the collecting rod 9. Since the radius of the conical section of the collecting rod 9 is smaller than the inner radius of the rubber band, some rubber bands will fall on the collecting rod 9 at this time and then gradually fall to the bottom cylindrical section of the collecting rod 9. Since the radius of the bottom cylindrical section of the collecting rod 9 matches the inner radius of the rubber band, the collecting rod 9 also plays a certain limiting role on the rubber bands. When the rubber bands on the collecting rod 9 fill the bottom cylindrical section, the high-pressure blower 10 stops working, and the first hydraulic rod 4 is started to drive the cover plate 6 to move upward. The cover plate 6 drives the collecting rod 9 on the fixing frame 8 out of the storage bin 1. The high-pressure blower 10 makes the rubber bands randomly scatter through the air flow disturbance, avoiding the stretching deformation caused by mechanical sorting. The conical section of the collecting rod 9 guides the rubber rings to slide down, and the cylindrical section accurately limits the position, ensuring that the rubber bands are stacked neatly and without jamming.

[0038] After the collecting rod 9 is moved out of the storage bin 1, start the first robotic arm 18. The first robotic arm 18 drives the vacuum pump 19 and the extraction pipe 20 to move. The first robotic arm 18 lifts the extraction pipe 20 above the collecting rod 9, and then the first robotic arm 18 drives the extraction pipe 20 to gradually move downward. At this time, the collecting rod 9 gradually enters the second chamber 22. The extraction pipe 20 extracts and uses the rubber bands on the collecting rod 9 step by step from top to bottom. When the rubber band sleeved on the topmost of the collecting rod 9 enters the third chamber 23 on the extraction pipe 20, start the vacuum pump 19. The vacuum pump 19 starts to pump out the air in the first chamber 21. Since the first chamber 21 is in communication with the fourth chamber 24 and the third chamber 23, when the vacuum pump 19 pumps out the air in the first chamber 21, it will also start to pump out the air in the fourth chamber 24 and the third chamber 23 at the same time. At this time, the rubber bands located in the third chamber 23 will be adsorbed and fixed. At this time, the first robotic arm 18 drives the extraction pipe 20 to move above the expansion plate 31. When the extraction pipe 20 is aligned with the expansion plate 31, the vacuum pump 19 stops working. Since the rubber bands in the third chamber 23 are continuously adsorbed and fixed by the vacuum pump 19, when the vacuum pump 19 stops working, the rubber bands in the third chamber 23 will directly fall onto the limiting plate 35 of the expansion plate 31. At this time, the first robotic arm 18 drives the extraction pipe 20 to move to the collecting rod 9 to perform adsorption and extraction again.

[0039] When the rubber band falls onto the limiting plate 35, the third hydraulic rod 30 drives the expansion plate 31 to contract and stretch the limiting rubber band. When the rubber band moves close to the limiting frame 27, the third hydraulic rod 30 stops contracting. At this time, the folded plastic bag is clamped by the second mechanical arm 26 and placed vertically into the expanded rubber band, and then the second hydraulic rod 28 is started to drive the support plate 29 to move downward as a whole. When the support plate 29 moves downward as a whole, the limiting plate 35 will be supported by the limiting frame 27. At this time, the second hydraulic rod 28 drives the support plate 29 to continue to move downward and start to stretch the tension spring 34 in the cylinder 33. The limiting rod 32 and the limiting plate 35 on the tension spring 34 will move upward as a whole relative to the expansion plate 31. At this time, the rubber band on the limiting plate 35 will be pushed out from the expansion plate 31. After the rubber band moves out of the expansion plate 31, since the rubber band has been in a stretched state before, the rubber band begins to contract and is then sleeved on the plastic bag to achieve bundling and packaging of the plastic bag.

[0040] After the rubber bands on the collecting rod 9 are used up, the first hydraulic rod 4 drives the collecting rod 9 to re-enter the storage box 1, and then continues to start the high-pressure blower 10 to collect the rubber bands through the collecting rod 9.

[0041] Since the rubber bands in the storage box 1 have a certain dead angle at the bottom and are difficult to be blown up by the blowing pipe 12, at this time, it is only necessary to start the motor 17 on the fixed platform 16 to drive the rotating shaft 14 on the support rod 15 to rotate, and the rotating shaft 14 drives the connecting frame 13 to rotate, and the connecting frame 13 drives the storage box 1 to flip over as a whole. At this time, the high-pressure blower 10 is always in working state, and the rubber bands that have been at the bottom of the storage box 1 are blown up again, so that the rubber bands have a greater probability of falling onto the collecting rod 9.

[0042] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the present invention.

Claims

1. An automatic packaging device for discharging materials from a packaging bag making machine, characterized in that: It comprises a material storage box, the material storage box is provided with a discharge port, the material storage box is provided with a plurality of air outlets, and the plurality of air outlets penetrate the material storage box; Two collecting mechanisms for collecting the rubber bands in the storage box are respectively provided at both ends of the storage box; Two flipping mechanisms for flipping the material storage box are respectively arranged on both sides of the material storage box.

2. The automatic packaging device for discharging materials from a packaging bag making machine according to claim 1, characterized in that: The collecting mechanism includes a first hydraulic rod, which is fixedly connected to the storage box, a first connecting rod is fixedly connected to the telescopic end of the first hydraulic rod, a cover plate that can fit the discharge port is provided on the first connecting rod, a second connecting rod is fixedly connected to the cover plate, a fixing frame is fixedly connected to the second connecting rod, a plurality of collecting rods are provided on the fixing frame, and a blowing device is provided on the storage box.

3. The automatic packaging device for discharging materials from a packaging bag making machine according to claim 2 is characterized in that: The blowing device comprises a high-pressure blower, which is fixedly connected to the material storage box. The air outlet of the high-pressure blower is provided with a multi-way joint, and the multi-way joint is provided with a plurality of blowing pipes, and the plurality of blowing pipes are connected to the material storage box.

4. The automatic packaging device for discharging materials from a packaging bag making machine according to claim 3 is characterized in that: The turning mechanism comprises a connecting frame, the connecting frame is fixedly connected to the material storage box, a rotating shaft is fixedly connected to the connecting frame, the rotating shaft is rotatably connected to a supporting rod, and a driving device is fixedly connected to the supporting rod.

5. The automatic packaging device for discharging materials from a packaging bag making machine according to claim 4 is characterized in that: The driving device comprises a motor, the motor is arranged on the supporting rod, and the power output end of the motor is fixedly connected to the rotating shaft.

6. The automatic packaging device for discharging materials from a packaging bag making machine according to claim 5, characterized in that: The support rod is provided with an extraction mechanism, which includes a first mechanical arm, which is fixedly connected to the support rod, a vacuum pump is fixedly connected to the telescopic end of the first mechanical arm, an extraction tube is provided on the vacuum pump, a first cavity connected to the suction end of the vacuum pump is provided on the extraction tube, a second cavity with the same length as the collecting rod is provided on the extraction tube, a third cavity fitting with a rubber band is provided on the extraction tube, and a plurality of fourth cavities for connecting the first cavity and the third cavity are provided on the extraction tube.

7. The automatic packaging device for discharging materials from a packaging bag making machine according to claim 6, characterized in that: The support rod is provided with a bundling mechanism, and the bundling mechanism includes a mounting platform, the mounting platform is fixedly connected to the support rod, a second mechanical arm for clamping plastic bags is provided on the mounting platform, a limit frame is fixedly connected to the mounting platform, a second hydraulic rod is provided at the lower end of the limit frame, a support plate is provided at the telescopic end of the second hydraulic rod, and four groups of rubber band expansion devices for stretching and expanding the rubber band are provided on the support plate.

8. The automatic packaging device for discharging materials from a packaging bag making machine according to claim 7, characterized in that: The rubber band expansion device includes a third hydraulic rod, which is arranged on the support plate. An expansion plate is arranged at the telescopic end of the third hydraulic rod. A cylinder is fixedly connected to the expansion plate. A sliding limit rod is arranged in the cylinder. A tension spring is arranged between the cylinder and the limit rod, and a limit plate is arranged on the limit rod.

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