Automatic bagging equipment for plastic particles

Abstract

The utility model relates to automatic bagging equipment for plastic particles. The automatic packaging machine comprises a bag warehouse mechanism used for storing packaging bags; the bag conveying mechanism is used for conveying packaging bags; the bag taking mechanism is used for transferring the packaging bags to the bag conveying mechanism; the bag opening mechanism is used for opening a bag opening of the packaging bag; the discharging mechanism is used for weighing the materials with the preset weight and filling the materials into the packaging bags through the bag clamping mechanism; the bag feeding manipulator can sleeve the packaging bag with the opened bag opening into the bag clamping mechanism so as to realize material filling operation; the vacuum heat sealing mechanism is used for carrying out vacuum treatment and heat sealing on the packaging bag filled with the materials; the bag conveying mechanism is used for transferring the packaging bags filled with the materials to the vacuum heat sealing mechanism; and the conveying mechanism is used for conveying the packaging bags subjected to vacuum heat sealing. The full-process automatic operation of storage, bag taking, bag opening, bagging, weighing and filling, vacuum heat sealing and conveying of packaging bags can be achieved, the labor cost is greatly reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bagging technology field especially is a kind of automatic bagging equipment for plastic particles. BACKGROUND

[0002] With the rapid development of industrial automation, automatic bagging machine gradually becomes the core equipment of feed, chemical industry, grain and other industries.

[0003] Plastic particles as an important industrial raw material, its packaging demand gradually increases, and the requirement of packaging equipment is gradually improved. And traditional manual bagging mode is low in efficiency and high in cost, especially in the background of rising labor cost year by year, the demand for efficient and accurate automation equipment is particularly urgent. Therefore, the research and development of automatic bagging machine gradually extends to the direction of subdivision, to meet the specific needs of different materials and industries and provide exclusive solutions. However, these bagging machines in the industry are mainly aimed at large-scale and general demand, and the special equipment for such small industry as plastic particle bagging is still a market blank.

[0004] Therefore, how to improve the bagging success rate, make the equipment smaller and save cost, better meet the needs of plastic particle industry for automatic packaging equipment, is an urgent problem to be solved. SUMMARY

[0005] Therefore, the utility model provides a kind of automatic bagging equipment for plastic particles, can realize the whole process automation operation from the storage of packaging bag, bag taking, bag opening, bagging, weighing filling, vacuum heat sealing to conveying, greatly reduces labor cost, improves production efficiency.

[0006] To solve the above technical problems, the utility model provides a kind of automatic bagging equipment for plastic particles, including frame and setting on the frame:

[0007] Bag library mechanism is used to store packaging bag;

[0008] Bag sending mechanism is arranged on the side of bag library mechanism, for receiving and conveying packaging bag;

[0009] Bag taking mechanism is used to transfer packaging bag in bag library mechanism to bag sending mechanism;

[0010] Bag opening mechanism includes oppositely movable upper bag opener and lower bag opener, and the two can fix the two side surfaces of packaging bag on bag opening position of bag sending mechanism respectively, and make bag opening of packaging bag when moving away from each other;

[0011] The feeding mechanism comprises a bag clamping mechanism and a weighing mechanism above the bag clamping mechanism, the weighing mechanism is connected to a material bin, and is used for weighing a predetermined weight of material and filling the material into the packaging bag through the bag clamping mechanism.

[0012] The upper bag opening manipulator is movably arranged between the bag opening mechanism and the bag clamping mechanism, can put the packaging bag with the bag opening into the bag clamping mechanism, and realizes the material filling operation.

[0013] The vacuum heat sealing mechanism is used for vacuum treatment and heat sealing of the packaging bag filled with the material.

[0014] The bag conveying mechanism is used for conveying the packaging bag after vacuum heat sealing.

[0015] The conveying mechanism is used for conveying the packaging bag after vacuum heat sealing.

[0016] In an embodiment of the utility model, the bag frame is slidably connected to the frame and located at the bottom of the bag conveying mechanism, and the Y-axis driving cylinder is installed on the bag frame and connected to the frame, the Y-axis driving cylinder can push or pull the bag frame along the Y-axis to the bottom of the bag conveying mechanism, and the bag conveying mechanism extends along the X-axis direction.

[0017] In an embodiment of the utility model, the bag conveying mechanism comprises a horizontal conveying roller mechanism, a chain conveying mechanism or a belt conveying mechanism, the bag conveying mechanism is provided with a position detection sensor and a bag blocking assembly at the bag opening position, the bag blocking assembly comprises a bag blocking cylinder and a blocking plate driven by the bag blocking cylinder and lifted along the Z-axis, and the bag taking mechanism comprises a first suction disc assembly arranged above the bag frame and located at one side of the head of the bag conveying mechanism and a first Z-axis driving cylinder for driving the first suction disc assembly to lift.

[0018] In an embodiment of the utility model, the upper bag opener and / or the lower bag opener comprise a second suction disc assembly and a second Z-axis driving cylinder for driving the second suction disc assembly to lift.

[0019] In an embodiment of the utility model, the upper bag opening manipulator is installed on the frame and located above the bag opening mechanism, and the upper bag opening manipulator comprises a rotating support seat, a first opening and closing cylinder, a rotating motor, an upper bag opening arm, a rotating shaft and a connecting rod.

[0020] One end of the rotating shaft is rotatably connected to the rotating support seat along the Y-axis, and the other end is connected to the driving end of the rotating motor.

[0021] Two upper bag arms are symmetrically arranged in the middle of the rotating shaft, each of the upper bag arms comprises a first end and a second end arranged oppositely, the first end of each of the upper bag arms can be inserted into the packaging bag, and the second end of each of the upper bag arms is provided with a first rotating part, and the upper bag arm is rotatably connected to the rotating shaft through the first rotating part in a direction perpendicular to the axis of the rotating shaft;

[0022] The second end of each of the upper bag arms is further provided with a second rotating part, and the mounting end and the driving end of the first opening and closing cylinder are connected to the two upper bag arms through the second rotating parts, respectively;

[0023] The second end of one of the upper bag arms is provided with a third rotating part close to the second rotating part and away from the first rotating part, and the second end of the other upper bag arm is provided with a fourth rotating part close to the first rotating part and away from the second rotating part;

[0024] The connecting rod is mounted to the two upper bag arms through the third rotating part and the fourth rotating part at two ends, respectively;

[0025] When the rotating shaft rotates to a first position, the first ends of the two upper bag arms can be inserted into the packaging bag with the bag opening being opened, and when the rotating shaft rotates to a second position, the two upper bag arms can sleeve the packaging bag with the bag opening being opened into the bag clamping mechanism.

[0026] In an embodiment of the utility model, the weighing mechanism includes a discharging connecting bin, a discharging port arranged on the top of the discharging connecting bin, a weighing tank arranged in the discharging connecting bin and a weighing sensor located between the weighing tank and the top of the discharging connecting bin, the inlet of the top of the weighing tank is connected to the discharging port, and the bottom of the weighing tank is provided with an openable and closable material cutting door;

[0027] The bag clamping mechanism comprises a receiving bin communicated with the material cutting door, an openable and closable clamp mouth assembly mounted at the lower opening of the receiving bin, an opening and closing driving assembly for driving the clamp mouth assembly to open and close and a clamping plate assembly located at one side of the clamp mouth assembly;

[0028] The clamp mouth assembly comprises two clamp mouth plates rotatably connected to the lower opening of the receiving bin, and the two clamp mouth plates are closed to form a clamp mouth cavity communicated with the receiving bin and are opened to expose the lower opening of the clamp mouth cavity;

[0029] The clamping plate assembly comprises a mounting beam connected to the receiving bin and a limiting plate mounted on the mounting beam and located at one side of each of the clamp mouth plates, and after the packaging bag is sleeved on the clamp mouth assembly, the limiting plate and the clamp mouth plate can be matched to clamp the two opening edges of the packaging bag when the clamp mouth assembly is opened.

[0030] The opening and closing driving assembly comprises two second opening and closing cylinders, and the mounting end and the driving end of each second opening and closing cylinder are rotationally connected to the mounting beam and the corresponding outer side end of the clamping nozzle plate, respectively.

[0031] In an embodiment of the utility model, the vacuum heat sealing mechanism comprises:

[0032] A top base is mounted on the frame;

[0033] A bottom base;

[0034] An intermediate plate is located between the top base and the bottom base;

[0035] A first Z-axis lifting cylinder is mounted on the top base and has a driving end connected to the intermediate plate;

[0036] A second Z-axis lifting cylinder is mounted on the intermediate plate and has a driving end connected to the bottom base;

[0037] A Z-axis guide assembly comprises guide columns slidingly connected to the top base and the intermediate plate and connected to the bottom base;

[0038] A heat sealing assembly comprises two heat sealing driving cylinders arranged along the X-axis direction and oppositely arranged on the bottom base, and heat sealing blocks connected to the driving ends of the heat sealing driving cylinders, and the two heat sealing blocks can form a first channel after being closed;

[0039] A sealing assembly comprises two sealing driving cylinders arranged along the X-axis direction and oppositely arranged on the bottom base, and sealing blocks connected to the driving ends of the sealing driving cylinders, and the sealing blocks are located on the lower side of the heat sealing blocks, and the two sealing blocks can form a second channel located directly below the first channel after being closed;

[0040] An air extraction assembly comprises an air extraction driving cylinder, an air extraction pipe, an air extraction plate in a flat shape and in communication with the air extraction pipe, and a driving block mounted between the air extraction pipe and the air extraction plate and connected to the driving end of the air extraction driving cylinder, the first channel and the second channel are suitable for the insertion of the air extraction plate, the upper end of the air extraction pipe is slidingly connected to the top base and is connected to an air extraction device, and the air extraction driving cylinder is mounted on the bottom base;

[0041] A bag opening arrangement assembly comprises two knife insertion driving cylinders arranged along the Y-axis direction and oppositely arranged on the bottom base, and knives connected to the driving ends of the knife insertion driving cylinders, and two smoothing driving cylinders arranged along the Y-axis direction and oppositely arranged on the bottom base, and smoothing assemblies connected to the driving ends of the smoothing driving cylinders, the smoothing assemblies comprise smoothing rods located on both sides of the knives along the X-axis direction and extending along the Z-axis direction.

[0042] In an embodiment of the utility model, the package sending mechanism comprises:

[0043] The installation chassis is installed on the ground;

[0044] The moving seat is slidably connected to the installation chassis;

[0045] The mold device comprises a mold, a mold driving assembly and a vibration motor, the mold comprises two mold plates oppositely arranged along the X-axis direction, the mold is used for accommodating and shaping the package bag filled with material; the mold driving assembly is used for driving the two mold plates to move oppositely along the X-axis direction, the mold driving assembly comprises X-axis mold driving cylinders installed on the moving seat and connected to the two mold plates respectively, the two vibration motors are installed on the outer side of the mold plate respectively, and the vibration motor is used for making the mold vibrate in multiple directions so that the material in the package bag is compacted;

[0046] The Z-axis reciprocating vibration device is installed between the conveying mechanism and the mold device and is arranged directly below the material discharging mechanism, and is used for hitting the bottom of the package bag back and forth when filling material;

[0047] The Y-axis conveying cylinder is installed on the installation chassis and connected to the moving seat at the driving end, and the Y-axis conveying cylinder can transfer the mold device from the position of the Z-axis reciprocating vibration device to the conveying mechanism.

[0048] In an embodiment of the utility model, the Z-axis reciprocating vibration device comprises:

[0049] The receiving support is connected to the conveying mechanism, and the upper plate body of the receiving support is provided with a gap slot;

[0050] The vibration and hitting assembly comprises a mounting base, a vibration and hitting plate, a reciprocating cylinder arranged on the mounting base and connected to the vibration and hitting plate at the driving end, and a linear guide assembly arranged between the vibration and hitting plate and the mounting base, and the vibration and hitting plate can reciprocate along the Z-axis through the gap slot.

[0051] In an embodiment of the utility model, the conveying mechanism extends along the Y-axis direction and comprises a horizontal conveying roller mechanism, a chain conveying mechanism or a belt conveying mechanism, the mold is provided with a rectangular parallelepiped space for accommodating the package bag filled with material, and the conveying mechanism is provided with spacing-adjustable limiting guide plates on both sides along the X-axis direction.

[0052] Compared with the prior art, the above technical scheme of the utility model has the following advantages:

[0053] The utility model discloses an automatic bagging equipment for plastic particles, realizes the full-process automation operation from the storage, bag taking, bag opening, bag sleeving, weighing and filling, vacuum heat sealing to conveying of packaging bag, and the bagging success rate is high, is obviously superior to traditional manual bagging mode, greatly improves production efficiency, and greatly reduces the artificial cost. In addition, the compact design of the equipment is high, so that the overall land occupation of the equipment is smaller, suitable for various production environments, especially suitable for production workshops with limited space.

[0054] The bag library mechanism of the automatic bagging equipment is equipped with a sliding bag frame, which is pushed out or pulled back by a Y-axis driven cylinder to realize efficient storage and taking of packaging bags. This structure can flexibly adjust the storage position, reduce interference during bag taking, and ensure the smoothness of the bag taking operation. It optimizes the space utilization rate and ensures seamless connection of the bag library mechanism with other components, laying a foundation for improving the overall operation efficiency.

[0055] The bag feeding mechanism of the automatic bagging equipment uses horizontal conveying rollers, chain or belt conveying mechanisms, so that the packaging bags can be quickly and smoothly conveyed to the bag opening position. At the same time, the combination of position detection sensors and bag blocking components accurately controls the bag stopping position, avoiding errors. The bagging success rate is significantly improved, more than 99%; the conveying is stable and reliable, reducing the risk of bag damage.

[0056] The bag taking mechanism of the automatic bagging equipment uses a first suction cup assembly and its driving cylinder to accurately take bags from the bag library, ensuring that only one bag is taken each time, avoiding the problem of multiple bags stacking or bag damage. The precision and stability of bag taking are improved, providing stable input for subsequent bag feeding and opening operations.

[0057] The bag opener of the automatic bagging equipment cooperates with the second suction cup assembly and driving cylinder to open the bag mouth by negative pressure adsorption. The bag opening action is stable and reliable, and the bag mouth can be opened without complex mechanical parts, greatly reducing the equipment maintenance cost.

[0058] The discharging mechanism of the automatic bagging equipment realizes accurate weighing and filling through high-precision weighing sensors and bag clamping mechanisms. The weighing error is controlled within ±25g, meeting the high-precision requirement. It ensures the weight consistency of each bag of plastic particles, improves the packaging quality, and meets the market demand for high-precision packaging.

[0059] The bagging manipulator of the automatic bagging equipment adopts a servo motor driven rotating shaft and a bagging arm, with a positioning accuracy of ±0.036 degrees, ensuring the high-precision action of the manipulator. The manipulator can flexibly sleeve the bag, adapting to packaging bags of different sizes and materials. The accuracy and speed of the bagging action are improved, avoiding the problem of downtime caused by bag misalignment.

[0060] The vacuum heat sealing mechanism of the automatic bag feeding equipment integrates vacuum and heat sealing functions, is provided with a bag opening arrangement assembly, ensures that the bag opening is flat and beautiful after vacuumizing, realizes high-quality sealing effect, and improves the appearance quality of the packaging bag and the market competitiveness.

[0061] The bag feeding mechanism of the automatic bag feeding equipment not only feeds the filled packaging bag to the vacuum heat sealing mechanism, but also optimizes the shape of the packaging bag and the compactness of the content by using a mold and a vibration device. The bag maintains a cuboid shape, facilitating subsequent transportation and storage, and the material compactness improves the packaging quality.

[0062] The conveying mechanism of the automatic bag feeding equipment adopts various conveying modes (such as chain, belt, etc.), has strong adaptability, and is provided with a limiting plate to ensure that the bag does not deviate. The conveying process is stable and efficient, and the finished bag is conveyed to the next process without damage.

[0063] The whole automatic bag feeding equipment is managed by a PLC control system, has real-time monitoring and fault alarm functions, and ensures efficient operation of the equipment. The whole process is automatically operated, human intervention is reduced, and the stability and continuity of the production line are improved. BRIEF DESCRIPTION OF DRAWINGS

[0064] In order to make the content of the utility model more easily and clearly understood, the utility model will be further described in detail in the following according to the specific embodiments of the utility model and in conjunction with the drawings.

[0065] Figure 1 It is a whole structure schematic view of one side of the automatic bag feeding equipment for plastic particles of the utility model.

[0066] Figure 2 It is a whole structure schematic view of the other side of the automatic bag feeding equipment for plastic particles of the utility model.

[0067] Figure 3 It is a component structure schematic view of the bag feeding mechanism and the bag taking mechanism of the utility model.

[0068] Figure 4 It is a component structure schematic view of the bag opening mechanism and the bag feeding mechanism of the utility model.

[0069] Figure 5 It is a component structure schematic view of the bag feeding mechanical hand of the utility model.

[0070] Figure 6 It is a structure schematic view of the material feeding mechanism of the utility model.

[0071] Figure 7 It is a structure schematic view of the bag clamping mechanism of the utility model.

[0072] Figure 8 It is a structure schematic view of the weighing mechanism of the utility model.

[0073] Figure 9 Figure 1 is a structural schematic diagram of the vacuum heat sealing mechanism of the utility model.

[0074] Figure 10 Figure 2 is a structural schematic diagram of the composition of the vacuum heat sealing mechanism of the utility model.

[0075] Figure 11 Figure 3 is a structural schematic diagram of part of the vacuum heat sealing mechanism of the utility model.

[0076] Figure 12 Figure 4 is a structural schematic diagram of the bag conveying mechanism and the conveying mechanism of the utility model.

[0077] Figure 13 Figure 5 is a structural schematic diagram of the composition of the bag conveying mechanism of the utility model.

[0078] Figure 14 Figure 6 is a structural schematic diagram of the composition of the Z-axis reciprocating vibration device of the utility model.

[0079] Explanation of the reference signs in the description:

[0080] 100, frame; 110, packaging bag;

[0081] 1, bag storage mechanism; 11, bag frame; 12, Y-axis drive cylinder;

[0082] 2, bag conveying mechanism; 21, bag blocking cylinder; 22, blocking plate;

[0083] 3, bag taking mechanism; 31, first suction cup assembly; 32, first Z-axis drive cylinder;

[0084] 4, bag opening mechanism; 41a, upper bag opener; 41b, lower bag opener; 411, second suction cup assembly; 412, second Z-axis drive cylinder;

[0085] 5, material discharging mechanism; 51, bag clamping mechanism; 511, receiving chamber; 512, clamping nozzle assembly; 512a, clamping nozzle plate; 513, opening and closing drive assembly; 513a, second opening and closing cylinder; 514, clamping plate assembly; 514a, limiting plate; 52, weighing mechanism; 521, material discharging connecting chamber; 522, material discharging port; 523, weighing tank; 524, weighing sensor; 525, material cutting door;

[0086] 6, bag placing manipulator; 61, rotating support seat; 62, first opening and closing cylinder; 63, rotating motor; 64, bag placing arm; 641, first rotating part; 642, second rotating part; 643, third rotating part; 644, fourth rotating part; 65, rotating shaft; 66, connecting rod;

[0087] 7, vacuum heat sealing mechanism; 7a, top base; 7b, bottom base; 7c, middle plate; 71, first Z-axis lifting cylinder; 72, second Z-axis lifting cylinder; 73, Z-axis guide assembly; 74, heat sealing assembly; 741, heat sealing driving cylinder; 742, heat sealing block; 743, first channel; 75, sealing assembly; 751, sealing driving cylinder; 752, sealing block; 753, second channel; 76, air extraction assembly; 761, air extraction driving cylinder; 762, air extraction pipe; 763, air extraction plate; 764, driving block; 77, bag mouth arrangement assembly; 771, knife driving cylinder; 772, knife; 773, smoothing driving cylinder; 774, smoothing rod;

[0088] 8, bag conveying mechanism; 81, mounting chassis; 82, moving seat; 83, mold device; 831, mold; 831a, mold plate; 832, X-axis mold driving cylinder; 833, vibration motor; 84, Z-axis reciprocating vibration device; 841, bearing support; 842, mounting base; 843, vibrating plate; 844, reciprocating cylinder; 845, linear guide assembly; 85, Y-axis conveying cylinder;

[0089] 9, conveying mechanism; 91, limiting guide plate;

[0090] 10, electrical integrated cabinet. DETAILED DESCRIPTION

[0091] The utility model will be further explained in connection with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0092] In the utility model, if the direction (up, down, left, right, front and back) is described, it is only for the convenience of describing the technical scheme of the utility model, and is not indicated or implied that the indicated technical features must have a specific orientation, structure and operation, therefore, it cannot be understood as the limitation of the utility model.

[0093] In the utility model, the meaning of "several" is one or more, and the meaning of "multiple" is two or more, "more than", "less than", "exceeding" and the like are not included in the number; "above", "below", "within" and the like are included in the number. In the description of the utility model, if "first" and "second" are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0094] In the utility model, unless otherwise specifically limited, the words such as "arrange", "install" and "connect" should be understood in a broad sense, for example, can be directly connected, also can be indirectly connected through intermediate medium;Can be fixedly connected, also can be detachably connected, can also be integrally formed;Can be mechanical connection, also can be electrical connection or can communicate with each other;It can be the communication or mutual action relationship of two elements inside two elements. The skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.

[0095] Referring to Figure 1 、 Figure 2 The utility model discloses a kind of automatic bagging equipment for plastic particles, including frame 100 and the frame 100 on the setting of:

[0096] Baghouse mechanism 1 is used to store packaging bag 110;

[0097] Bag conveying mechanism 2 is arranged on one side of the baghouse mechanism 1, for receiving and conveying the packaging bag 110;

[0098] Bag taking mechanism 3 is used to transfer the packaging bag 110 in the baghouse mechanism 1 to the bag conveying mechanism 2;

[0099] Bag opening mechanism 4 includes oppositely movable upper bag opener 41a and lower bag opener 41b, and both can be fixed on the two side surfaces of the packaging bag 110 in the bag opening position of the bag conveying mechanism 2 respectively, and make the bag opening of the packaging bag 110 open when moving away from each other;

[0100] Discharging mechanism 5 includes bag clamp mechanism 51 and the weighing mechanism 52 above it, the weighing mechanism 52 is connected to silo, for weighing the material of predetermined weight and filling into the packaging bag 110 by the bag clamp mechanism 51;

[0101] Bagging manipulator 6 is movably arranged between the bag opening mechanism 4 and the bag clamp mechanism 51, and can be fitted into the bag clamp mechanism 51 with the packaging bag 110 with open bag opening, to realize material filling operation;

[0102] Vacuum heat sealing mechanism 7 is used for vacuum treatment and heat sealing of the packaging bag 110 filled with material;

[0103] Bag conveying mechanism 8 is used for transferring the packaging bag 110 filled with material to the vacuum heat sealing mechanism 7;

[0104] Conveying mechanism 9 is used for conveying the packaging bag 110 after vacuum heat sealing.

[0105] In one embodiment, referring to Figure 3As shown, the bag storage mechanism 1 includes a bag frame 11 slidingly connected to the frame 100 and located at the bottom of the bag feeding mechanism 2, and a Y-axis driving air cylinder 12 installed on the bag frame 11 and connected to the frame 100, which can push or pull the bag frame 11 along the Y-axis to the bottom of the bag feeding mechanism 2. The bag feeding mechanism 2 extends along the X-axis direction. When the Y-axis driving air cylinder 12 acts, the bag frame 11 can be pushed or pulled along the Y-axis to the bottom of the bag feeding mechanism 2, so that the packaging bag 110 is pushed out when needed to be taken by the bag taking mechanism 3, or pulled back when not needed to reduce interference. By flexibly moving the bag frame 11 outward or inward by the Y-axis driving air cylinder 12, the packaging bags 110 can be orderly placed and flexibly taken in a limited space. The bag frame 11 can be accurately pushed out when taking the bag, avoiding collision between the bag taking mechanism 3 and the surrounding components, improving the overall operation safety and reliability of the equipment. When the bag frame 11 is recycled, the bag storage mechanism 1 is "hidden" inside the equipment, optimizing the equipment footprint; when needed, it can be "popped out" for the bag taking mechanism 3 to take the bag, realizing the reasonable allocation of space.

[0106] Therefore, the bag storage mechanism 1 is equipped with a sliding bag frame 11, which is pushed out or pulled back by the Y-axis driving air cylinder 12, realizing efficient storage and taking of the packaging bags 110, and can flexibly adjust the storage position, reduce interference when taking the bag, and ensure the smoothness of the bag taking operation. Optimizing the space utilization, ensuring the seamless docking of the bag storage mechanism 1 and other components, and improving the overall operation efficiency.

[0107] In one embodiment, referring to Figure 4 As shown, the bag feeding mechanism 2 includes a horizontal conveying roller mechanism, a chain conveying mechanism or a belt conveying mechanism; the bag feeding mechanism 2 is provided with a position detection sensor (which can be a photoelectric sensor) and a bag blocking assembly at the bag opening position, the bag blocking assembly includes a bag blocking air cylinder 21 and a blocking plate 22 driven by the bag blocking air cylinder 21 and lifting along the Z-axis; when the packaging bag 110 is conveyed to the bag opening position, the bag blocking air cylinder 21 is actuated by the position detection sensor, so that the bag is stopped by the blocking plate 22. At the same time, the combination of the position detection sensor and the bag blocking assembly accurately controls the bag stopping position, directly conveying the packaging bag 110 to the bag opening position, and the bag loading success rate is higher than that of the traditional direct bag taking, and the bag loading success rate is greater than 99%.

[0108] In addition, according to the material and production capacity requirements of the packaging bag 110, a roller, a chain or a belt conveying mechanism can be selected to improve the universality and applicability of the equipment.

[0109] In one embodiment, referring to Figure 3As shown, the bag taking mechanism 3 includes a first suction cup assembly 31 arranged above the bag storage mechanism 1 and on one side of the head of the bag feeding mechanism 2, and a first Z-axis driving cylinder 32 driving the first suction cup assembly 31 to lift. The first suction cup assembly 31 and its driving cylinder are used to accurately take bags from the bag storage, ensuring that only one bag is taken each time, avoiding the problem of multiple bags being stacked or the bag being damaged. The accuracy and stability of taking the bag are improved, providing stable input for subsequent bag feeding and opening operations.

[0110] Therefore, only one lifting cylinder and several suction cups are used, which is simple in structure, easy to control and maintain, and the suction cups are also easy to replace. The vertical movement of the cylinder type combined with negative pressure suction ensures the repeatability and stability of the bag taking action, providing stable input for the subsequent bag feeding link.

[0111] In one embodiment, referring to Figure 4 As shown, the upper bag opener 41a and / or the lower bag opener 41b includes a second suction cup assembly 411 and a second Z-axis driving cylinder 412 driving the second suction cup assembly 411 to lift.

[0112] When the packaging bag 110 is blocked by the baffle 22, the two second suction cup assemblies 411 are moved relatively close to each other, and the bag opening is sucked by negative pressure on both sides; then they are moved away from each other to open the bag opening, and wait for the upper bag manipulator 6 to insert into the bag opening, and the suction cup negative pressure is closed, and the bag is fixed on the manipulator. The bag opening action is stable and reliable,

[0113] The opening and closing of the bag opening can be realized by the simple relative movement of the suction cup, which greatly reduces the failure points compared with the traditional mechanical clamping jaw or pull rod structure. The two second suction cup assemblies 411 are independently controlled, the suction force is stable, the action can be accurately synchronized or adjusted as needed, the opening success rate is high, the second suction cup assembly 411 and the second Z-axis driving cylinder 412 are standardized components, easy to replace, and the maintenance workload and cost are low.

[0114] In one embodiment, referring to Figure 5 As shown, the upper bag manipulator 6 is installed on the frame 100 and located above the bag opening mechanism 4, and the upper bag manipulator 6 includes a rotating support seat 61, a first opening and closing cylinder 62, a rotating motor 63, an upper bag arm 64, a rotating shaft 65, and a connecting rod 66.

[0115] One end of the rotating shaft 65 is connected to the rotating support seat 61 along the Y-axis, and the other end is connected to the driving end of the rotating motor 63;

[0116] The upper bag arms 64 are symmetrically arranged in the middle of the rotating shaft 65, each of the upper bag arms 64 comprises a first end and a second end arranged oppositely, the first end of each of the upper bag arms 64 can be inserted into the packaging bag 110, and the second end of each of the upper bag arms 64 is provided with a first rotating part 641, and the upper bag arm 64 is rotatably connected to the rotating shaft 65 through the first rotating part 641 in a direction perpendicular to the axis of the rotating shaft 65;

[0117] The second end of each of the upper bag arms 64 is further provided with a second rotating part 642, and the mounting end and the driving end of the first opening and closing cylinder 62 are connected to the two upper bag arms 64 through the second rotating part 642 respectively;

[0118] The second end of one of the upper bag arms 64 is provided with a third rotating part 643 close to the second rotating part 642 and away from the first rotating part 641, and the second end of the other upper bag arm 64 is provided with a fourth rotating part 644 close to the first rotating part 641 and away from the second rotating part 642;

[0119] The connecting rod 66 is mounted at both ends to the two upper bag arms 64 through the third rotating part 643 and the fourth rotating part 644 respectively;

[0120] When the rotating shaft 65 rotates to the first position, the first ends of the two upper bag arms 64 can be inserted into the packaging bag 110 with the bag opening being opened, and when the rotating shaft 65 rotates to the second position, the two upper bag arms 64 can sleeve the packaging bag 110 with the bag opening being opened into the bag clamping mechanism 51.

[0121] The mechanical structure of rotation combined with opening and closing makes the mechanical hand suitable for packaging bags 110 of different sizes and materials, and has high universality; when the rotating shaft 65 rotates to the first position, the first end (insertion end) is inserted into the bag opening which is opened. The opening and closing of the second ends of the two arms are driven by the first opening and closing cylinder 62, so as to realize clamping or releasing the packaging bag 110. The cooperation of the connecting rod 66 and the third and fourth rotating parts 644 can ensure that the actions of the two arms are synchronous. When the rotating shaft 65 rotates to the second position, the upper bag mechanical hand 6 sleeves the packaging bag 110 with the bag opening being opened into the bag clamping mechanism 51 accurately, so as to realize the subsequent filling operation. The upper bag mechanical hand 6 is directly located between the bag opening mechanism 4 and the bag clamping mechanism 51, without the need for additional transfer or intermediate transition station, so as to improve the efficiency and reduce the occupation.

[0122] The rotating motor 63 is a servo motor, which drives the rotating shaft 65 and the bag placing arm 64, improves the accuracy and efficiency of bag placing, and can realize flexible bag placing and adapt to packaging bags 110 of different sizes and materials. The positioning accuracy of the servo motor is ±1 / (2500*4), and the angle calculation is ±360 / (2500*4) = ±0.036 degrees, and the error is not accumulated.

[0123] In one embodiment, referring to Figures 6 to 8 The weighing mechanism 52 includes a discharge connecting bin 521, a discharge port 522 arranged on the top of the discharge connecting bin 521, a weighing tank 523 arranged in the discharge connecting bin 521, and a weighing sensor 524 between the weighing tank 523 and the top of the discharge connecting bin 521. The top inlet of the weighing tank 523 is connected to the discharge port 522, and the bottom of the weighing tank 523 is provided with an openable and closable material cutting door 525. The bag clamping mechanism 51 includes a receiving bin 511 connected to the material cutting door 525, an openable and closable clamping nozzle assembly 512 installed at the lower opening of the receiving bin 511, an opening and closing driving assembly 513 for driving the clamping nozzle assembly 512 to open and close, and a clamping plate assembly 514 on one side of the clamping nozzle assembly 512.

[0124] Referring to Figure 7 The clamping nozzle assembly 512 includes two clamping nozzle plates 512a rotatably connected to the lower opening of the receiving bin 511. The two clamping nozzle plates 512a are closed to form a clamping nozzle cavity in communication with the receiving bin 511, and are opened to expose the lower part of the clamping nozzle cavity to the opening;

[0125] The clamping plate assembly 514 includes a mounting beam connected to the receiving bin 511 and a limiting plate 514a mounted on the mounting beam and located on one side of each clamping nozzle plate 512a. After the packaging bag 110 is sleeved on the clamping nozzle assembly 512, the clamping nozzle assembly 512 can cooperate with the limiting plate 514a and the clamping nozzle plate 512a when opened to clamp the two side opening edges of the packaging bag 110;

[0126] The opening and closing driving assembly 513 includes two second opening and closing cylinders 513a, and the mounting end and the driving end of each second opening and closing cylinder 513a are rotatably connected to the outside end of the mounting beam and the corresponding clamping nozzle plate 512a, respectively.

[0127] The discharge connecting bin 521 can be connected to a production finished product bin.

[0128] The bag clamping mechanism 51 is installed below the weighing tank 523, connected to the warehouse 511 and the material cutting door 525, and the clamping nozzle assembly 512 (two clamping nozzle plates 512a) can be opened and closed to open or close the material flow channel. When the clamping nozzle assembly 512 is opened, it cooperates with the limiting plate 514a on one side to clamp the edge of the packaging bag 110. The clamping nozzle plate 512a is driven to rotate by the second opening and closing cylinder 513a to form a clamping nozzle cavity or opening. When the weighing sensor 524 detects that the material weight reaches the standard, the material cutting door 525 is opened, and the material is poured into the packaging bag 110 below. After filling, the material cutting door 525 is closed, and the next weighing and discharging is waited.

[0129] Through the above setting, the combination of the weighing tank 523 and the weighing sensor 524 can realize the measurement of ±25g or even better accuracy, and ensure that the weight of each bag of material is consistent. The design of the openable and closable material cutting door 525 makes the material discharging process stable and controllable, avoiding overshoot or residue. The clamping nozzle cooperates with the limiting plate 514a to reliably clamp the edge of the packaging bag 110, ensuring that there is no leakage during the filling process. The discharging connecting warehouse 521, the weighing tank 523, and the bag clamping mechanism 51 are mutually connected, which is compact in layout and easy to disassemble, assemble and clean.

[0130] In one embodiment, referring to Figures 9 to 11 The vacuum heat sealing mechanism 7 comprises:

[0131] a top seat 7a mounted on the frame 100;

[0132] a bottom seat 7b;

[0133] an intermediate plate 7c between the top seat 7a and the bottom seat 7b;

[0134] a first Z-axis lifting cylinder 71 mounted on the top seat 7a and having a driving end connected to the intermediate plate 7c;

[0135] a second Z-axis lifting cylinder 72 mounted on the intermediate plate 7c and having a driving end connected to the bottom seat 7b;

[0136] a Z-axis guide assembly 73 comprising guide columns slidingly connected to the top seat 7a and the intermediate plate 7c and connected to the bottom seat 7b. Through the Z-axis guide assembly 73, the accuracy and stability of the upward and downward movement of the intermediate plate 7c and the bottom seat 7b can be ensured.

[0137] a heat sealing assembly 74 comprising two heat sealing drive cylinders 741 arranged along the X-axis direction and oppositely arranged on the bottom seat 7b, and heat sealing blocks 742 connected to the driving ends of the heat sealing drive cylinders 741, and the two heat sealing blocks 742 can form a first channel 743 after being closed;

[0138] The sealing assembly 75 comprises two sealing drive cylinders 751 arranged along the X-axis direction and mounted on the base 7b, and sealing blocks 752 connected to the drive ends of the sealing drive cylinders 751, the sealing blocks 752 being located below the heat sealing blocks 742, and the two sealing blocks 752 being capable of forming a second passage 753 below the first passage 743 after being closed;

[0139] The air extraction assembly 76 comprises an air extraction drive cylinder 761, an air extraction pipe 762, an air extraction plate 763 in a flat shape and in communication with the air extraction pipe 762, and a drive block 764 mounted between the air extraction pipe 762 and the air extraction plate 763 and connected to the drive end of the air extraction drive cylinder 761, the first passage 743 and the second passage 753 being adapted to the insertion of the air extraction plate 763, the upper end of the air extraction pipe 762 being slidably connected to the top seat 7a and externally connected to an air extraction device, and the air extraction drive cylinder 761 being mounted on the base 7b;

[0140] The bag mouth arrangement assembly 77 comprises two insertion knife drive cylinders 771 arranged along the Y-axis direction and mounted on the base 7b, and insertion knives 772 connected to the drive ends of the insertion knife drive cylinders 771, and further comprises two flattening drive cylinders 773 arranged along the Y-axis direction and mounted on the base 7b, and flattening assemblies connected to the drive ends of the flattening drive cylinders 773, the flattening assemblies comprising flattening rods 774 extending along the Z-axis and located on both sides of the insertion knives 772 along the X-axis direction. The two insertion knife drive cylinders 771 drive the insertion knives 772 respectively to arrange the inside of the bag mouth, and the two flattening drive cylinders 773 drive the flattening assemblies (flattening rods 774) respectively to flatten the outside of the bag mouth, and the bag mouth is heat sealed after being arranged to ensure that the bag mouth is flat and beautiful.

[0141] The vacuum heat sealing mechanism 7 integrates the functions of vacuum and heat sealing, is provided with the bag mouth arrangement assembly 77, and can perform flattening treatment on the bag mouth during vacuum extraction to avoid wrinkles or curling of the bag mouth, improve the appearance quality of the packaging, and ensure that the bag mouth is flat and beautiful after vacuum extraction. The sealing effect is high in quality, and the appearance quality of the packaging bag 110 is improved. Through the combination of the first and second Z-axis lifting cylinders 72, the different heights and shapes of the packaging bag 110 can be flexibly adapted, and the adjustability of the heat sealing position and the air extraction depth is ensured.

[0142] In one embodiment, as shown in Figure 12 , Figure 13 the bag conveying mechanism 8 comprises:

[0143] a mounting chassis 81;

[0144] a moving seat 82 slidably connected to the mounting chassis 81;

[0145] The mold device 83 includes a mold 831, a mold drive assembly, and a vibration motor 833. The mold 831 includes two templates 831a arranged opposite each other along the X-axis. The mold 831 is used to contain and shape the packaging bag 110 containing the filling material. The mold drive assembly is used to drive the two templates 831a to move relative to each other along the X-axis. The mold drive assembly includes an X-axis mold drive cylinder 832 mounted on the movable seat 82 and connected to the two templates 831a respectively. The two vibration motors 833 are respectively mounted on the outside of the templates 831a. The vibration motors 833 are used to cause the mold 831 to vibrate in multiple directions so that the material inside the packaging bag 110 is compacted (tight or dense).

[0146] The Z-axis reciprocating vibration device 84 is installed between the conveying mechanism 9 and the mold device 83 and is located directly below the feeding mechanism 5. It is used to strike the bottom of the packaging bag 110 back and forth during filling.

[0147] Y-axis conveying cylinder 85 is mounted on the mounting base 81 and its drive end is connected to the moving seat 82. Y-axis conveying cylinder 85 can transfer the mold device 83 from the Z-axis reciprocating vibration device 84 to the conveying mechanism 9.

[0148] In one embodiment, refer to Figure 14 As shown, the Z-axis reciprocating vibration device 84 includes:

[0149] The receiving bracket 841 is connected to the conveying mechanism 9, and a clearance groove is provided on the upper plate of the receiving bracket 841.

[0150] The rapping assembly includes a mounting base 842, a rapping plate 843, a reciprocating cylinder 844 disposed on the mounting base 842 and connected to the rapping plate 843 by a drive end, and a linear guide assembly 845 disposed between the rapping plate 843 and the mounting base 842. The rapping plate 843 is capable of reciprocating along the Z-axis through the clearance groove.

[0151] In one embodiment, refer to Figure 12 As shown, the conveying mechanism 9 extends along the Y-axis and includes a horizontal conveying roller mechanism, a chain conveying mechanism, or a belt conveying mechanism. The mold 831 is provided with a cuboid space for accommodating the filling material of the packaging bag 110, so that the packaging bag 110 forms a cuboid shape to meet the requirements of market transportation and storage. The conveying mechanism 9 is provided with adjustable spacing limit guide plates 91 on both sides along the X-axis.

[0152] The filled material packaging bag 110 is transported to the vacuum heat sealing mechanism 7 by the bag feeding mechanism 8 for heat sealing and vacuumizing. Since the final packaging bag 110 needs to be extracted into a cuboid shape, the bag after filling needs to be placed in the mold 831 at all times. Therefore, the bag feeding mechanism 8 not only has a conveying function, but also can carry the mold 831 and is equipped with a vibration function around the bag (left and right and bottom) to make the material in the bag compact, providing good basic conditions for vacuumizing and heat sealing. Up and down vibration is realized by designing a Z-axis reciprocating vibration device 84, which is driven by a reciprocating air cylinder 844 to reciprocate and knock the bottom of the bag (filling and vibration are synchronized).

[0153] The bag feeding mechanism 8 uses a Y-axis conveying air cylinder 85 as a power source, and the moving seat 82 is equipped with a roller and guide rail mechanism on both sides to realize smooth movement function, reduce impact on the bag after filling, and prevent bag displacement or dumping; the mold 831 template 831a can adjust the distance according to the size of the bag to adapt to different bag types; the vibration intensity can also be adjusted according to the material characteristics or the thickness of the bag, with high versatility. Through the application of a bidirectional speed control valve, the vibration at the moment of starting and stopping of the air cylinder is effectively eliminated, ensuring the stability and reliability of the movement. The conveying mechanism 9 adopts multiple conveying methods with strong adaptability and is equipped with a limiting guide plate 91 to ensure that the bag does not deviate. This makes the conveying process stable and efficient, ensuring that the finished bag is delivered to the next process without damage.

[0154] In addition, the entire automatic bag feeding process is controlled by an electrical integrated cabinet 10 equipped with a control system (such as PLC) to monitor the running state of each link in real time, ensuring stable and efficient operation of the equipment. The system is provided with fault detection and alarm function to respond to equipment abnormalities in time and ensure production continuity.

[0155] The automatic bag feeding equipment can meet the following technical indicators: the bag feeding success rate is 99%; the running speed of the bag feeding machine can reach 500 bags / hour; the design and project implementation of the equipment meet the GB / T31331-2014 (plastic particle environmental protection requirements and identification) standard; the design strictly implements the GB / T27738 (gravity type automatic loading scale) standard, improving the stability of the system.

[0156] Therefore, the automatic bagging equipment of the utility model is closely connected in movement, and the functions of each mechanism support each other, from the orderly bagging of the bag storage mechanism 1, to the stable bagging of the bag taking mechanism 3, to the accurate positioning and opening operation of the bag sending and opening mechanism 4, to the high-speed bagging action of the bagging manipulator 6, and to the high-precision weighing and filling of the material placing mechanism 5, finally, vacuumizing, heat sealing and bag opening arrangement are realized through the bag sending mechanism 8 and the vacuum heat sealing mechanism 7. Under the connection of the conveying mechanism 9, the finished bags are smoothly output, forming a full-automatic plastic particle packaging process. Meanwhile, each mechanism has the advantages of simple structure and pertinence, greatly reduces the equipment failure rate, and can still remain stable under high-frequency working condition, greatly improves the production efficiency and packaging quality.

[0157] The working process of the utility model is as follows:

[0158] The packaging bag 110 is stored in the bag frame 11 in the bag storage mechanism 1, the bag frame 11 moves along the Y-axis direction through the Y-axis drive cylinder 12, and the orderly arrangement of the packaging bag 110 is ensured, so that the subsequent bag taking is facilitated.

[0159] Bag taking and bag sending: the first suction disc assembly 31 in the bag taking mechanism 3 is lifted to take out the packaging bag 110 in the bag storage and transfer it to the bag sending mechanism 2; the bag sending mechanism 2 (such as a horizontal conveying roller, a chain or a belt conveying mechanism 9) conveys the packaging bag 110 to the bag opening position, and a position detection sensor detects the position of the bag to control the bag blocking cylinder 21 to act, so that the bag is accurately stopped at the bag opening position;

[0160] Bag opening operation: the upper bag opener 41a and the lower bag opener 41b (equipped with the second suction disc assembly 411) of the bag opening mechanism 4 fix the two side surfaces of the packaging bag 110 respectively.

[0161] The two bag openers are away from each other, and the bag opening is opened, which prepares for the subsequent bagging operation.

[0162] Bagging and filling: the bagging manipulator 6 moves above the bag opening position, and the packaging bag 110 with the opened bag opening is sleeved into the bag clamp mechanism 51. The weighing mechanism 52 in the material placing mechanism 5 weighs the predetermined weight of the plastic particles, and the material is filled into the packaging bag 110 through the bag clamp mechanism 51, so that the weight of each bag is accurately consistent.

[0163] Material compaction: the bag sending mechanism 8 carries the mold device 83, and the filled packaging bag 110 is placed into the mold 831; the vibration motor 833 vibrates the mold 831 in multiple directions, so that the material in the packaging bag 110 is more compact, forming a cuboid shape, which is convenient for subsequent processing.

[0164] Vacuum treatment and heat sealing: the filled packaging bag 110 is conveyed to the vacuum heat sealing mechanism 7 by the conveying mechanism 8; the vacuum heat sealing mechanism 7 performs vacuum treatment on the packaging bag 110 to remove the excess air in the bag, and simultaneously performs heat sealing to ensure that the packaging bag 110 is well sealed; the bag opening finishing assembly 77 performs flattening treatment on the bag opening of the packaging bag 110 through the inserting knife 772 and the flattening rod 774 to ensure that the bag opening is neat and to improve the overall appearance of the packaging and the appearance quality of the product.

[0165] Conveying and finished product treatment: the packaging bag 110 after the vacuum heat sealing and the bag opening finishing is continuously conveyed by the conveying mechanism 9 to complete the final packaging finished product.

[0166] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the examples, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. An automatic bagging device for plastic particles, characterized in that, Includes a frame (100) and a component disposed on the frame (100): Bag storage mechanism (1) for storing packaging bags (110); A bag delivery mechanism (2) is located on one side of the bag storage mechanism (1) and is used to receive and deliver the packaging bags (110). A bag-taking mechanism (3) is used to transfer the packaging bag (110) in the bag storage mechanism (1) to the bag delivery mechanism (2); The bag opening mechanism (4) includes an upper bag opener (41a) and a lower bag opener (41b) that are relatively movable, and both can fix the two sides of the packaging bag (110) at the bag opening position of the bag feeding mechanism (2) respectively, and open the bag opening of the packaging bag (110) when they move away from each other. The material feeding mechanism (5) includes a bag clamping mechanism (51) and a weighing mechanism (52) above it. The weighing mechanism (52) is connected to the hopper and is used to weigh a predetermined weight of material and fill it into the packaging bag (110) through the bag clamping mechanism (51). The bag-loading robot (6) is movably disposed between the bag-opening mechanism (4) and the bag clamping mechanism (51), and can put the packaging bag (110) with the bag opening open into the bag clamping mechanism (51) to realize the material filling operation; A vacuum heat sealing mechanism (7) is used to vacuum process and heat seal the packaging bag (110) filled with material; A bag-feeding mechanism (8) is used to transfer the packaging bag (110) containing the filling material to the vacuum heat-sealing mechanism (7); A conveying mechanism (9) is used to convey the packaging bag (110) after vacuum heat sealing.

2. The automatic bagging device for plastic particles according to claim 1, characterized in that, The bag storage mechanism (1) includes a bag frame (11) slidably connected to the frame (100) and located at the bottom of the bag feeding mechanism (2) and a Y-axis drive cylinder (12) installed on the bag frame (11) and connected to the frame (100). The Y-axis drive cylinder (12) can push the bag frame (11) out or pull it back along the Y-axis to the bottom of the bag feeding mechanism (2), which extends along the X-axis.

3. The automatic bagging device for plastic particles according to claim 1, characterized in that, The bag feeding mechanism (2) includes a horizontal conveying roller mechanism, a chain conveying mechanism or a belt conveying mechanism; the bag feeding mechanism (2) is provided with a position detection sensor and a bag blocking assembly at the bag opening position, the bag blocking assembly includes a bag blocking cylinder (21) and a baffle (22) driven by it to rise and fall along the Z-axis; the bag taking mechanism (3) includes a first suction cup assembly (31) located above the bag storage mechanism (1) and on one side of the head of the bag feeding mechanism (2) and a first Z-axis drive cylinder (32) that drives the first suction cup assembly (31) to rise and fall.

4. An automatic bagging device for plastic particles according to claim 1, characterized in that, The upper bag opener (41a) and / or the lower bag opener (41b) include a second suction cup assembly (411) and a second Z-axis drive cylinder (412) for driving the second suction cup assembly (411) to rise and fall.

5. An automatic bagging device for plastic particles according to claim 1, characterized in that, The bag-loading robot (6) is mounted on the frame (100) and located above the bag-opening mechanism (4). The bag-loading robot (6) includes a rotating support base (61), a first opening and closing cylinder (62), a rotary motor (63), a bag-loading arm (64), a rotating shaft (65), and a connecting rod (66). One end of the rotating shaft (65) is rotatably connected to the rotating support base (61) along the Y-axis, and the other end is connected to the drive end of the rotating motor (63). Two upper bag arms (64) are symmetrically arranged along the middle of the rotation axis (65). Each upper bag arm (64) includes a first end and a second end arranged opposite to each other. The first end of each upper bag arm (64) can be inserted into the packaging bag (110). The second end of each upper bag arm (64) is provided with a first rotating part (641). The upper bag arm (64) is rotatably connected to the rotation axis (65) in a direction perpendicular to the axis of the rotation axis (65) through the first rotating part (641). The second end of each of the upper bag arms (64) is also provided with a second rotating part (642), and the mounting end and driving end of the first opening and closing cylinder (62) are respectively connected to the two upper bag arms (64) through the second rotating part (642). One of the upper bag arms (64) has a third rotating part (643) located near the second rotating part (642) and away from the first rotating part (641) at its second end, and another upper bag arm (64) has a fourth rotating part (644) located near the first rotating part (641) and away from the second rotating part (642) at its second end. The two ends of the connecting rod (66) are respectively mounted to the two upper bag arms (64) via the third rotating part (643) and the fourth rotating part (644). When the rotating shaft (65) rotates to the first position, the first ends of the two upper bag arms (64) can be inserted into the packaging bag (110) with the bag opening open. When the rotating shaft (65) rotates to the second position, the two upper bag arms (64) can put the packaging bag (110) with the bag opening open into the bag clamping mechanism (51).

6. An automatic bagging device for plastic particles according to claim 1, characterized in that, The weighing mechanism (52) includes a discharge connection bin (521), a discharge port (522) disposed on the top of the discharge connection bin (521), a weighing tank (523) disposed inside the discharge connection bin (521), and a weighing sensor (524) located between the weighing tank (523) and the top of the discharge connection bin (521). The inlet at the top of the weighing tank (523) is connected to the discharge port (522), and the bottom of the weighing tank (523) is provided with an openable and closable material cut-off gate (525). The bag clamping mechanism (51) includes a receiving chamber (511) connected to the cutting gate (525) at the top, an openable and closable clamping nozzle assembly (512) installed at the lower opening of the receiving chamber (511), an opening and closing drive assembly (513) for driving the clamping nozzle assembly (512) to open and close, and a clamping plate assembly (514) located on one side of the clamping nozzle assembly (512). The clamping assembly (512) includes two clamping plates (512a) respectively rotatably connected to the lower opening of the receiving chamber (511). When the two clamping plates (512a) are closed, they form a clamping cavity communicating with the receiving chamber (511), and when they are opened, the lower part of the clamping cavity is exposed. The clamping assembly (514) includes a mounting beam connected to the receiving compartment (511) and a limiting plate (514a) mounted on the mounting beam and located on one side of each clamping plate (512a). After the packaging bag (110) is put onto the clamping assembly (512), the clamping assembly (512) can make the limiting plate (514a) and the clamping plate (512a) cooperate when it is opened to clamp the two opening edges of the packaging bag (110). The opening and closing drive assembly (513) includes two second opening and closing cylinders (513a), and the mounting end and driving end of each second opening and closing cylinder (513a) are respectively rotatably connected to the mounting beam and the outer end of the corresponding clamping plate (512a).

7. An automatic bagging device for plastic particles according to claim 1, characterized in that, The vacuum heat sealing mechanism (7) includes: Top mount (7a) is mounted on the frame (100); Base (7b); An intermediate plate (7c) is located between the top seat (7a) and the base (7b); The first Z-axis lifting cylinder (71) is installed on the top seat (7a) and its driving end is connected to the intermediate plate (7c); The second Z-axis lifting cylinder (72) is installed on the intermediate plate (7c) and its drive end is connected to the base (7b); Z-axis guide assembly (73) includes a guide post that is slidably connected to the top seat (7a) and the intermediate plate (7c) and connected to the base (7b); The heat sealing assembly (74) includes two heat sealing drive cylinders (741) mounted on the base (7b) and arranged opposite each other along the X-axis, and a heat sealing block (742) connected to the drive end of each heat sealing drive cylinder (741). The two heat sealing blocks (742) can form a first channel (743) after closing. The sealing assembly (75) includes two sealing drive cylinders (751) mounted on the base (7b) and arranged opposite each other along the X-axis, and a sealing block (752) connected to the drive end of each of the sealing drive cylinders (751). The sealing block (752) is located below the heat sealing block (742), and the two sealing blocks (752) can form a second channel (753) located directly below the first channel (743) after closing. The air extraction assembly (76) includes an air extraction drive cylinder (761), an air extraction pipe (762), an air extraction plate (763) that communicates with the air extraction pipe (762) and is flat, and a drive block (764) that is installed between the air extraction pipe (762) and the air extraction plate (763) and connected to the drive end of the air extraction drive cylinder (761). The first channel (743) and the second channel (753) are suitable for the insertion of the air extraction plate (763). The upper end of the air extraction pipe (762) is slidably connected to the top seat (7a) and externally connected to an air extraction device. The air extraction drive cylinder (761) is installed on the base (7b). The bag opening straightening assembly (77) includes two insert drive cylinders (771) mounted on the base (7b) and arranged opposite each other along the Y-axis, and inserts (772) connected to the drive ends of each insert drive cylinder (771). It also includes two smoothing drive cylinders (773) mounted on the base (7b) and arranged opposite each other along the Y-axis, and a smoothing component connected to the drive ends of each smoothing drive cylinder (773). The smoothing component includes smoothing rods (774) located on both sides of the inserts (772) along the X-axis and extending along the Z-axis.

8. An automatic bagging device for plastic particles according to claim 1, characterized in that, The package delivery mechanism (8) includes: Mounting base frame (81); The movable base (82) is slidably connected to the mounting base (81); The mold device (83) includes a mold (831), a mold drive assembly, and a vibration motor (833). The mold (831) includes two templates (831a) arranged opposite each other along the X-axis. The mold (831) is used to contain and shape the packaging bag (110) filled with material. The mold drive assembly is used to drive the two templates (831a) to move relative to each other along the X-axis. The mold drive assembly includes an X-axis mold drive cylinder (832) mounted on the movable seat (82) and connected to the two templates (831a) respectively. The two vibration motors (833) are respectively mounted on the outside of the templates (831a). The vibration motors (833) are used to make the mold (831) vibrate in multiple directions so that the material in the packaging bag (110) is compacted. The Z-axis reciprocating vibration device (84) is installed between the conveying mechanism (9) and the mold device (83) and is located directly below the feeding mechanism (5) for striking the bottom of the packaging bag (110) back and forth during filling. Y-axis conveying cylinder (85) is mounted on the mounting base (81) and its drive end is connected to the moving seat (82). The Y-axis conveying cylinder (85) can transfer the mold device (83) from the Z-axis reciprocating vibration device (84) to the conveying mechanism (9).

9. An automatic bagging device for plastic particles according to claim 8, characterized in that, The Z-axis reciprocating vibration device (84) includes: A receiving bracket (841) is connected to the conveying mechanism (9), and a clearance groove is provided on the upper plate of the receiving bracket (841); The vibration assembly includes a mounting base (842), a vibration plate (843), a reciprocating cylinder (844) disposed on the mounting base (842) and whose drive end is connected to the vibration plate (843), and a linear guide assembly (845) disposed between the vibration plate (843) and the mounting base (842), wherein the vibration plate (843) is capable of reciprocating along the Z-axis through the relief groove.

10. An automatic bagging device for plastic particles according to claim 8, characterized in that, The conveying mechanism (9) extends along the Y-axis and includes a horizontal conveying roller mechanism, a chain conveying mechanism or a belt conveying mechanism. The mold (831) is provided with a cuboid space for the packaging bag (110) to hold the filling material. The conveying mechanism (9) is provided with adjustable spacing limit guide plates (91) on both sides along the X-axis.

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