Automatic bagging equipment for plastic particles

Abstract

The invention relates to automatic bagging equipment for plastic particles. The device 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 invention relates to the technical field of bagging, in particular to an automatic bagging device for plastic particles. Background Art

[0002] With the rapid development of industrial automation, automatic bagging machines have gradually become core equipment in feed, chemical, grain and other industries.

[0003] As an important industrial raw material, the demand for plastic pellets is gradually increasing, and the requirements for packaging equipment are also gradually increasing. The traditional manual bagging method is inefficient and costly. Especially in the context of rising labor costs year by year, the demand for efficient and accurate automated equipment is particularly urgent. Therefore, the research and development of automatic bagging machines has gradually extended in the direction of segmentation, providing exclusive solutions to meet the specific needs of different materials and industries. However, the bagging machines in these industries are mainly aimed at large-scale and general needs, while special equipment for niche industries such as plastic pellet bagging is still a market gap.

[0004] Therefore, how to improve the success rate of bagging, make the equipment occupy a smaller area and save costs, so as to better meet the demand of the plastic particle industry for automated packaging equipment, is an urgent problem to be solved. Summary of the invention

[0005] To this end, the present invention provides an automatic bagging device for plastic particles, which can realize the full process automation from packaging bag storage, bag taking, bag opening, bagging, weighing and filling, vacuum heat sealing to transportation, greatly reducing labor costs and improving production efficiency.

[0006] In order to solve the above technical problems, the present invention provides an automatic bagging device for plastic particles, comprising a frame and:

[0007] A bag storage mechanism for storing packaging bags;

[0008] A bag delivery mechanism, arranged on one side of the bag storage mechanism, for receiving and delivering the packaging bags;

[0009] A bag taking mechanism, used for transferring the packaging bags in the bag storage mechanism to the bag delivering mechanism;

[0010] The bag opening mechanism comprises an upper bag opener and a lower bag opener which are relatively movable, and the two bag openers can respectively fix the two side surfaces of the packaging bag at the bag opening position of the bag feeding mechanism, and open the bag mouth of the packaging bag when they are away from each other;

[0011] A material discharge mechanism, including a bag clamp mechanism and a weighing mechanism above the bag clamp mechanism, wherein the weighing mechanism is connected to the silo and is used to weigh a predetermined weight of material and fill it into the packaging bag through the bag clamp mechanism;

[0012] A bag loading robot, which is movably disposed between the bag opening mechanism and the bag clamping mechanism, and is capable of inserting the packaging bag with the bag opening opened into the bag clamping mechanism to realize material filling operation;

[0013] A vacuum heat-sealing mechanism, used for performing vacuum treatment and heat-sealing on the packaging bag filled with materials;

[0014] A bag delivery mechanism, used for transferring the packaging bag filled with materials to the vacuum heat sealing mechanism;

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

[0016] In one embodiment of the present invention, the bag storage mechanism includes a bag frame slidably connected to the frame and located at the bottom of the bag feeding mechanism, and a Y-axis driving cylinder installed on the bag frame and connected to the frame, the Y-axis driving cylinder can push the bag frame out or pull it back to the bottom of the bag feeding mechanism along the Y-axis, and the bag feeding mechanism extends along the X-axis direction.

[0017] In one embodiment of the present invention, the bag feeding mechanism includes a horizontal conveying roller mechanism, a chain conveying mechanism or a belt conveying mechanism; the bag feeding mechanism is provided with a position detection sensor and a bag blocking assembly at the bag opening position, and the bag blocking assembly includes a bag blocking cylinder and a baffle driven by the cylinder to be lifted and lowered along the Z-axis; the bag picking mechanism includes a first suction cup assembly arranged above the bag storage mechanism and located on one side of the head of the bag feeding mechanism, and a first Z-axis driving cylinder for driving the first suction cup assembly to be lifted and lowered.

[0018] In one embodiment of the present invention, the upper bag opener and / or the lower bag opener comprises a second suction cup assembly and a second Z-axis driving cylinder for driving the second suction cup assembly to rise and fall.

[0019] In one embodiment of the present invention, the bag loading robot is installed on the frame and is located above the bag opening mechanism, and the bag loading robot includes a rotating support seat, a first opening and closing cylinder, a rotating motor, a bag loading arm, a rotating shaft and a connecting rod;

[0020] One end of the rotating shaft is connected to the rotating support seat for rotation 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 along the middle of the rotating shaft, each of the upper bag arms comprises a first end and a second end arranged opposite to each other, the first end of each upper bag arm can be inserted into the packaging bag, and the second end of each upper bag arm is provided with a first rotating part, and the upper bag arm is connected to the rotating shaft by rotating in a direction perpendicular to the axis of the rotating shaft through the first rotating part;

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

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

[0024] The two ends of the connecting rod are respectively installed on the two upper bag arms through the third rotating part and the fourth rotating part;

[0025] When the rotating shaft rotates to the first position, the first ends of the two upper bag arms can be inserted into the packaging bag with the bag opening opened. When the rotating shaft rotates to the second position, the two upper bag arms can put the packaging bag with the bag opening opened into the bag clamp mechanism.

[0026] In one embodiment of the present invention, the weighing mechanism comprises a discharge connection bin, a discharge port disposed on the top of the discharge connection bin, a weighing tank disposed in the discharge connection bin, and a weighing sensor located between the weighing tank and the top of the discharge connection bin, the inlet at the top of the weighing tank is connected to the discharge port, and a material cut-off door that can be opened and closed is disposed at the bottom of the weighing tank;

[0027] The bag clamp mechanism includes a receiving bin whose upper part is connected to the material cutting door, a clamping nozzle assembly installed at the lower opening of the receiving bin, an opening and closing driving assembly for driving the clamping nozzle assembly to open and close, and a clamping plate assembly located on one side of the clamping nozzle assembly;

[0028] Wherein, the nozzle assembly comprises two nozzle plates which are respectively rotatably connected to the lower opening of the receiving bin, and the two nozzle plates are closed to form a nozzle cavity connected to the receiving bin, and when opened, the lower part of the nozzle cavity is exposed to the opening;

[0029] The clamping plate assembly includes a mounting beam connected to the receiving bin and a limiting plate mounted on the mounting beam and located on one side of each of the clamping plates. After the packaging bag is put on the clamping nozzle assembly, the clamping nozzle assembly can make the limiting plate cooperate with the clamping nozzle plate to clamp the opening edges on both sides of the packaging bag when the packaging bag is opened;

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

[0031] In one embodiment of the present invention, the vacuum heat sealing mechanism comprises:

[0032] A top seat, mounted on the frame;

[0033] Base;

[0034] A middle plate, located between the top seat and the base;

[0035] A first Z-axis lifting cylinder, mounted on the top seat and having a driving end connected to the middle plate;

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

[0037] A Z-axis guide assembly, comprising a guide post slidably connected to the top seat and the middle plate and connected to the base;

[0038] A heat sealing assembly, comprising two heat sealing drive cylinders installed on the base and arranged opposite to each other along the X-axis direction, and a heat sealing block connected to the drive end of each heat sealing drive cylinder, wherein the two heat sealing blocks can form a first channel after being closed;

[0039] A sealing assembly, comprising two sealing drive cylinders installed on the base and arranged opposite to each other along the X-axis direction, and a sealing block connected to the driving end of each of the sealing drive cylinders, wherein the sealing block is located at the lower side of the heat sealing block, and the two sealing blocks can form a second channel located directly below the first channel after closing;

[0040] The air extraction component comprises an air extraction drive cylinder, an air extraction pipe, an air extraction plate connected to the air extraction pipe and in a flat shape, and a drive block installed between the air extraction pipe and the air extraction plate and connected to the drive end of the air extraction drive cylinder, the first channel and the second channel are suitable for inserting the air extraction plate, the upper end of the air extraction pipe is slidably connected to the top seat and is externally connected to the air extraction device, and the air extraction drive cylinder is installed on the base;

[0041] The bag opening sorting assembly comprises two plunger drive cylinders installed on the base and arranged oppositely along the Y-axis direction and a plunger connected to the driving end of each of the plunger drive cylinders, and also comprises two smoothing drive cylinders installed on the base and arranged oppositely along the Y-axis direction and a smoothing assembly connected to the driving end of each of the smoothing drive cylinders, the smoothing assembly comprises a smoothing rod located on both sides of the plunger along the X-axis direction and extending along the Z-axis.

[0042] In one embodiment of the present invention, the package delivery mechanism comprises:

[0043] Install the chassis;

[0044] A movable seat, slidably connected to the mounting base;

[0045] A mold device, comprising a mold, a mold driving assembly and a vibration motor, wherein the mold comprises two templates arranged opposite to each other along the X-axis direction, and the mold is used to accommodate and shape the packaging bag filled with materials; the mold driving assembly is used to drive the two templates to move relative to each other along the X-axis direction, and the mold driving assembly comprises an X-axis mold driving cylinder installed on the moving seat and respectively connected to the two templates, and two vibration motors are respectively installed on the outer sides of the templates, and the vibration motors are used to make the mold vibrate in multiple directions to make the materials in the packaging bag firm;

[0046] A Z-axis reciprocating vibration device, installed between the conveying mechanism and the mold device and arranged directly below the discharge mechanism, for striking the bottom of the packaging bag back and forth during filling;

[0047] A Y-axis conveying cylinder is installed on the mounting base and a driving end is connected to the moving seat. The Y-axis conveying cylinder can transfer the mold device from the Z-axis reciprocating vibration device to the conveying mechanism.

[0048] In one embodiment of the present invention, the Z-axis reciprocating vibration device comprises:

[0049] A receiving bracket is connected to the conveying mechanism, and a yielding groove is provided on the upper plate of the receiving bracket;

[0050] The rapping assembly includes a mounting base, a rapping plate, a reciprocating cylinder arranged on the mounting base and having a driving end connected to the rapping plate, and a linear guide assembly arranged between the rapping plate and the mounting base. The rapping plate can reciprocate along the Z axis through the clearance groove.

[0051] In one embodiment of the present invention, the conveying mechanism extends along the Y-axis direction and includes a horizontal conveying roller mechanism, a chain conveying mechanism or a belt conveying mechanism. The mold is provided with a rectangular space for accommodating the filling material in the packaging bag, and the conveying mechanism is provided with limit guide plates with adjustable spacing on both sides along the X-axis direction.

[0052] The above technical solution of the present invention has the following advantages compared with the prior art:

[0053] The automatic bagging equipment for plastic particles described in the present invention realizes the full process automation operation from packaging bag storage, bag taking, bag opening, bagging, weighing and filling, vacuum heat sealing to transportation, with a high bagging success rate, which is significantly better than the traditional manual bagging method, greatly improves production efficiency and significantly reduces labor costs. In addition, the equipment has a compact design and high integration, which makes the overall equipment occupy a smaller area and is suitable for various production environments, especially for production workshops with limited space.

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

[0055] The bag feeding mechanism of this automatic bagging equipment adopts horizontal conveyor rollers, chains or belt conveyors, 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's stop position to avoid errors. The bagging success rate is significantly improved to more than 99%; the conveying is smooth and reliable, reducing the risk of bag damage.

[0056] The bag taking mechanism of the automatic bag feeding equipment uses the 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. It improves the accuracy and stability of bag taking and provides stable input for subsequent bag feeding and bag opening operations.

[0057] The bag opener of the automatic bagging equipment cooperates with the driving cylinder through the second suction cup assembly, and the negative pressure sucks the two sides of the packaging bag and then moves away, and the bag mouth opens. The bag opening action is stable and reliable, and the bag mouth can be opened without complex mechanical parts, which greatly reduces the equipment maintenance cost.

[0058] The unloading mechanism of the automatic bagging equipment uses a high-precision weighing sensor and bag clamp mechanism to achieve accurate weighing and filling. The weighing error is controlled within ±25g, meeting the high-precision requirements. It ensures that the weight of each bag of plastic particles is consistent, improves the packaging quality, and meets the market demand for high-precision packaging.

[0059] The bagging robot of this automatic bagging equipment uses a servo motor to drive the rotating shaft and bagging arm, with a positioning accuracy of up to ±0.036 degrees, ensuring the high-precision movement of the robot. The robot is flexible in bagging and adapts to packaging bags of different sizes and materials. It improves the accuracy and speed of bagging and avoids downtime caused by bag misalignment.

[0060] The vacuum heat sealing mechanism of the automatic bagging equipment integrates vacuum and heat sealing functions, and is equipped with a bag opening finishing component to ensure that the bag opening is flat and beautiful after vacuuming. It achieves high-quality sealing effects, improves the appearance quality of the packaging bag, and enhances market competitiveness.

[0061] The bag feeding mechanism of this automatic bagging equipment not only conveys the filled bags to the vacuum heat sealing mechanism, but also optimizes the shape of the bags and the density of the contents by using molds and vibration devices. The bags maintain a rectangular shape, which is convenient for subsequent transportation and storage; the material density improves the packaging quality.

[0062] The conveying mechanism of this automatic bagging equipment adopts a variety of conveying methods (such as chains, belts, etc.), has strong adaptability, and is equipped with limit plates to ensure that the bags do not deviate. The conveying process is smooth and efficient, ensuring that the finished bags are transported to the next process without damage.

[0063] The automatic bagging equipment is managed by a PLC control system, which has real-time monitoring and fault alarm functions to ensure efficient operation of the equipment. It realizes full-process automated operation, reduces human intervention, and improves the stability and continuity of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0065] Figure 1 It is a schematic diagram of the overall structure of one side of the automatic bagging equipment for plastic particles of the present invention.

[0066] Figure 2 It is a schematic diagram of the overall structure of the other side of the automatic bagging equipment for plastic particles of the present invention.

[0067] Figure 3 It is a schematic diagram of the composition structure of the bag feeding mechanism and the bag taking mechanism of the present invention.

[0068] Figure 4 It is a schematic diagram of the composition structure of the bag opening mechanism and the bag feeding mechanism of the present invention.

[0069] Figure 5 It is a schematic diagram of the composition structure of the bag loading robot of the present invention.

[0070] Figure 6 It is a structural schematic diagram of the discharge mechanism of the present invention.

[0071] Figure 7 It is a structural schematic diagram of the bag clamp mechanism of the present invention.

[0072] Figure 8 It is a structural schematic diagram of the weighing mechanism of the present invention.

[0073] Fig. 9 It is a structural schematic diagram of the vacuum heat sealing mechanism of the present invention.

[0074] Fig.10 It is a schematic diagram of the composition structure of the vacuum heat sealing mechanism of the present invention.

[0075] Fig.11 It is a partial structural schematic diagram of the vacuum heat sealing mechanism of the present invention.

[0076] Fig.12 It is a structural schematic diagram of the package delivery mechanism and the conveying mechanism of the present invention.

[0077] Fig.13 It is a schematic diagram of the composition structure of the package delivery mechanism of the present invention.

[0078] Fig.14 It is a schematic diagram of the composition structure of the Z-axis reciprocating vibration device of the present invention.

[0079] Description of the Figures in the Specification:

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

[0081] 1. Bag storage mechanism; 11. Bag frame; 12. Y-axis driving cylinder;

[0082] 2. Bag feeding mechanism; 21. Bag blocking cylinder; 22. Baffle;

[0083] 3. Bag taking mechanism; 31. First suction cup assembly; 32. First Z-axis driving cylinder;

[0084] 4. Bag opening mechanism; 41a. Upper bag opener; 41b. Lower bag opener; 411. Second suction cup assembly; 412. Second Z-axis driving cylinder;

[0085] 5. Discharging mechanism; 51. Bag clamping mechanism; 511. Receiving bin; 512. Clamping nozzle assembly; 512a. Clamping nozzle plate; 513. Opening and closing driving assembly; 513a. Second opening and closing cylinder; 514. Clamping plate assembly; 514a. Limiting plate; 52. Weighing mechanism; 521. Discharging connecting bin; 522. Discharging port; 523. Weighing tank; 524. Weighing sensor; 525. Cutting door;

[0086] 6. Bag loading manipulator; 61. Rotating support seat; 62. First opening and closing cylinder; 63. Rotating motor; 64. Bag loading 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 seat; 7b. 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 drive cylinder; 742. Heat sealing block; 743. First channel; 75. Sealing assembly; 751. Sealing drive cylinder; 752. Sealing block; 753. Second channel; 76. Vacuum assembly; 761. Vacuum drive cylinder; 762. Vacuum pipe; 763. Vacuum plate; 764. Drive block; 77. Bag opening finishing assembly; 771. Insertion knife drive cylinder; 772. Insertion knife; 773. Smoothing drive cylinder; 774. Smoothing rod;

[0088] 8. Package delivery mechanism; 81. Mounting chassis; 82. Moving seat; 83. Mold device; 831. Mold; 831a. Template; 832. X-axis mold driving cylinder; 833. Vibration motor; 84. Z-axis reciprocating vibration device; 841. Support bracket; 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 present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0092] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0093] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0094] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0095] Reference Figure 1 , Figure 2 As shown, an automatic bagging device for plastic particles of the present invention includes a frame 100 and:

[0096] A bag storage mechanism 1, used for storing packaging bags 110;

[0097] The bag delivery mechanism 2 is arranged at one side of the bag storage mechanism 1 and is used to receive and deliver the packaging bag 110;

[0098] A bag taking mechanism 3, used for transferring the packaging bag 110 in the bag storage mechanism 1 to the bag delivering mechanism 2;

[0099] The bag opening mechanism 4 comprises an upper bag opener 41a and a lower bag opener 41b which are relatively movable, and the two can respectively fix the two side surfaces of the packaging bag 110 at the bag opening position of the bag feeding mechanism 2, and open the bag mouth of the packaging bag 110 when they are away from each other;

[0100] The material discharging mechanism 5 includes a bag clamping mechanism 51 and a weighing mechanism 52 thereon, wherein the weighing mechanism 52 is connected to the silo and is used to weigh a material of a predetermined weight and fill it into the packaging bag 110 through the bag clamping mechanism 51;

[0101] The bag loading robot 6 is movably disposed between the bag opening mechanism 4 and the bag clamping mechanism 51, and is capable of inserting the packaging bag 110 with the bag opening opened into the bag clamping mechanism 51 to realize the material filling operation;

[0102] A vacuum heat-sealing mechanism 7, used for performing vacuum treatment and heat-sealing on the packaging bag 110 filled with materials;

[0103] The bag delivery mechanism 8 is used to transfer the packaging bag 110 filled with materials to the vacuum heat sealing mechanism 7;

[0104] The conveying mechanism 9 is used to convey 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 slidably connected to the frame 100 and located at the bottom of the bag feeding mechanism 2, and a Y-axis driving cylinder 12 installed on the bag frame 11 and connected to the frame 100. The Y-axis driving cylinder 12 can push out or pull back the bag frame 11 to the bottom of the bag feeding mechanism 2 along the Y axis, and the bag feeding mechanism 2 extends along the X axis. When the Y-axis driving cylinder 12 is in motion, the bag frame 11 can be pushed out or pulled back to the bottom of the bag feeding mechanism 2 along the Y axis, so that the packaging bag 110 can be pushed out when needed so that the bag taking mechanism 3 can obtain it, or pulled back when not needed to reduce interference. The bag frame 11 can be flexibly moved outward or inward by the Y-axis driving cylinder 12, so that the packaging bags 110 can be placed in order and flexibly taken in a limited space. The bag frame 11 can be accurately pushed out when taking the bag, avoiding the collision between the bag taking mechanism 3 and the surrounding components, thereby improving the overall operation safety and reliability of the equipment. When the bag frame 11 is recovered, the bag storage mechanism 1 is "hidden" inside the equipment to optimize the equipment space; when needed, it can be "popped out" for the bag taking mechanism 3 to take bags, thereby achieving a reasonable allocation of space.

[0106] Therefore, the bag storage mechanism 1 is equipped with a sliding bag frame 11, and the bag frame 11 is pushed out or pulled back by the Y-axis driving cylinder 12, so as to realize efficient storage and retrieval of the packaging bag 110, and the storage position can be flexibly adjusted to reduce interference when taking the bag, and ensure the smoothness of the bag taking operation. The space utilization is optimized, and the bag storage mechanism 1 is ensured to be seamlessly connected with other components, thereby improving the overall operation efficiency.

[0107] In one embodiment, referring to Figure 4 As shown, the bag delivery mechanism 2 includes a horizontal conveying roller mechanism, a chain conveying mechanism or a belt conveying mechanism; the bag delivery mechanism 2 is provided with a position detection sensor (which may be a photoelectric sensor) and a bag blocking assembly at the bag opening position, and the bag blocking assembly includes a bag blocking cylinder 21 and a baffle 22 driven by the same and lifted along the Z axis; when the packaging bag 110 is delivered to the bag opening position, the bag blocking cylinder 21 is activated by the position detection sensor, thereby blocking the bag through the baffle 22, and the bag stops at this position. At the same time, the combination of the position detection sensor and the bag blocking assembly accurately controls the bag stop position, and directly delivers the packaging bag 110 to the bag opening position. Compared with the traditional direct bag taking, the bag loading success rate is higher, 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, rollers, chains or belt conveyors can be selected to improve the versatility 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 disposed above the bag storage mechanism 1 and located on one side of the head of the bag delivery mechanism 2, and a first Z-axis driving cylinder 32 for driving the first suction cup assembly 31 to rise and fall. 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 stacking or bag damage. The accuracy and stability of bag taking are improved, providing stable input for subsequent bag delivery and bag opening operations.

[0110] Therefore, it only relies on one lifting cylinder and several suction cups, with a simple structure, easy control and maintenance; the suction cups are also easy to replace. The cylinder-type vertical movement combined with negative pressure suction ensures the repetitive accuracy and stability of the bag-taking action, providing stable input for the subsequent bag-delivery process.

[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 for driving the second suction cup assembly 411 to rise and fall.

[0112] When the packaging bag 110 is blocked by the baffle 22, the two second suction cup assemblies 411 move relatively close to each other and suck the two sides of the bag opening through negative pressure; then move away from each other to open the bag opening, waiting for the bag loading robot 6 to be inserted into the bag opening, the suction cup negative pressure is closed, and the bag is fixed on the robot. The bag opening action is stable and reliable.

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

[0114] In one embodiment, referring to Figure 5 As shown, the bagging robot 6 is installed on the frame 100 and is located above the bag opening mechanism 4. The bagging robot 6 includes a rotating support seat 61, a first opening and closing cylinder 62, a rotating motor 63, a bagging 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 for rotation along the Y axis and the other end is connected to the driving end of the rotating motor 63;

[0116] Two upper bag arms 64 are symmetrically arranged along the middle of the rotating shaft 65, each of the upper bag arms 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, and the second end of each upper bag arm 64 is provided with a first rotating portion 641, and the upper bag arm 64 is rotatably connected to the rotating shaft 65 along a direction perpendicular to the axis of the rotating shaft 65 through the first rotating portion 641;

[0117] The second end of each upper bag arm 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 respectively connected to the two upper bag arms 64 through the second rotating part 642;

[0118] A third rotating portion 643 is disposed at a second end of one of the upper bag arms 64, close to the second rotating portion 642 and away from the first rotating portion 641; a fourth rotating portion 644 is disposed at a second end of the other upper bag arm 64, close to the first rotating portion 641 and away from the second rotating portion 642;

[0119] The two ends of the connecting rod 66 are respectively installed on the two upper bag arms 64 through the third rotating part 643 and the fourth rotating part 644;

[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 opened. When the rotating shaft 65 rotates to the second position, the two upper bag arms 64 can insert the packaging bag 110 with the bag opening opened into the bag clamp mechanism 51.

[0121] The mechanical structure of rotation combined with opening and closing enables the manipulator to adapt to packaging bags 110 of different sizes and materials, and has high versatility; when the rotating shaft 65 rotates to the first position, the first end (insertion end) is inserted into the opened bag mouth. The second ends of the two arms are driven to open and close by the first opening and closing cylinder 62 to clamp or release the packaging bag 110. The cooperation between the connecting rod 66 and the third and fourth rotating parts 644 can ensure the synchronization of the movements of the two arms. When the rotating shaft 65 rotates to the second position, the bag loading manipulator 6 accurately inserts the packaging bag 110 with the bag mouth opened into the bag clamping mechanism 51 to realize the subsequent filling operation. The bag loading manipulator 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 stations, thereby improving efficiency and reducing floor space.

[0122] The rotating motor 63 is specifically a servo motor, which drives the rotating shaft 65 and the bagging arm 64 to improve the accuracy and efficiency of bagging, and can achieve flexible bagging to adapt to packaging bags 110 of different sizes and materials. The positioning accuracy of the servo motor is controlled to be ±1 / (2500*4), which is calculated as ±360 / (2500*4)=±0.036 degrees in angle, and there is no accumulation of errors.

[0123] In one embodiment, referring to Figures 6 to 8 As shown, 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 in 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 a material cut-off door 525 that can be opened and closed is disposed at the bottom of the weighing tank 523; the bag clamping mechanism 51 includes a receiving bin 511 whose upper part is connected to the material cut-off door 525, a nozzle assembly 512 that can be opened and closed and installed at the lower opening of the receiving bin 511, an opening and closing driving assembly 513 for driving the nozzle assembly 512 to open and close, and a clamping plate assembly 514 located on one side of the nozzle assembly 512.

[0124] Reference Figure 7 As shown, the nozzle assembly 512 includes two nozzle plates 512a which are respectively rotatably connected to the lower opening of the receiving bin 511. The two nozzle plates 512a form a nozzle cavity communicating with the receiving bin 511 when closed, and expose the lower opening of the nozzle cavity when opened;

[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 of the nozzle clamping plates 512a. After the packaging bag 110 is inserted into the nozzle clamping assembly 512, the nozzle clamping assembly 512 can make the limiting plate 514a cooperate with the nozzle clamping plate 512a to clamp the opening edges of both sides of the packaging bag 110 when the packaging bag 110 is opened.

[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 of the second opening and closing cylinders 513a are rotatably connected to the mounting beam and the corresponding outer end of the nozzle clamping plate 512a respectively.

[0127] The material discharge connection bin 521 can be connected to the finished product bin.

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

[0129] Through the above settings, the combination of the weighing tank 523 and the weighing sensor 524 can achieve a measurement accuracy of ±25g or even better, ensuring that the weight of each bag of material is consistent. The design of the openable and closable material cut-off door 525 makes the material discharge process smooth and controllable, avoiding overshoot or residue. The clamping nozzle and the limit plate 514a can cooperate to reliably clamp the edge of the mouth of the packaging bag 110 to ensure that there is no leakage during the filling process. The discharge connection bin 521, the weighing tank 523, and the bag clamp mechanism 51 are connected to each other, and the layout is compact and easy to disassemble and clean.

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

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

[0132] Base 7b;

[0133] An intermediate plate 7c, located between the top seat 7a and the base 7b;

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

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

[0136] The Z-axis guide assembly 73 includes a guide column slidably connected to the top seat 7a and the middle plate 7c and connected to the base 7b; the Z-axis guide assembly 73 can ensure the accuracy and stability of the up and down movement of the middle plate 7c and the base 7b.

[0137] The heat sealing assembly 74 includes two heat sealing driving cylinders 741 installed on the base 7b and arranged opposite to each other along the X-axis direction, and a heat sealing block 742 connected to the driving end of each heat sealing driving cylinder 741. The two heat sealing blocks 742 can form a first channel 743 after closing.

[0138] The sealing assembly 75 comprises two sealing drive cylinders 751 installed on the base 7b and arranged opposite to each other along the X-axis direction, and a sealing block 752 connected to the driving end of each sealing drive cylinder 751, wherein the sealing block 752 is located at the lower side of 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;

[0139] The air extraction assembly 76 comprises an air extraction drive cylinder 761, an air extraction pipe 762, a flat air extraction plate 763 connected to the air extraction pipe 762, and a driving block 764 installed between the air extraction pipe 762 and the air extraction plate 763 and connected to the driving 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 is externally connected to the air extraction device. The air extraction drive cylinder 761 is installed on the base 7b.

[0140] The bag opening arrangement assembly 77 includes two knife drive cylinders 771 installed on the base 7b and arranged oppositely along the Y-axis direction and a knife 772 connected to the driving end of each knife drive cylinder 771, and also includes two smoothing drive cylinders 773 installed on the base 7b and arranged oppositely along the Y-axis direction and a smoothing assembly connected to the driving end of each smoothing drive cylinder 773, and the smoothing assembly includes a smoothing rod 774 located on both sides of the knife 772 along the X-axis direction and extending along the Z-axis. The two knife drive cylinders 771 drive the knife 772 to arrange the inside of the bag opening; the two smoothing drive cylinders 773 drive the smoothing assembly (smoothing rod 774) to level the outside of the bag opening, and heat seal after arrangement to ensure that the bag opening is flat and beautiful.

[0141] The vacuum heat-sealing mechanism 7 integrates the vacuum and heat-sealing functions, and is equipped with a bag opening finishing component 77. During the vacuuming process, the bag opening can be flattened to avoid wrinkles or curling of the bag opening, improve the appearance quality of the package, and ensure that the bag opening is flat and beautiful after vacuuming. A high-quality sealing effect is achieved, and the appearance quality of the packaging bag 110 is improved. Through the combination of the first and second Z-axis lifting cylinders 72, flexible adaptation to different heights and shapes of the packaging bags 110 is achieved, ensuring the adjustability of the heat-sealing position and the vacuuming depth.

[0142] In one embodiment, referring to Fig.12 , Fig.13 As shown, the package delivery mechanism 8 includes:

[0143] Install the chassis 81;

[0144] A movable seat 82, slidably connected to the mounting base 81;

[0145] The mold device 83 includes a mold 831, a mold driving assembly and a vibration motor 833. The mold 831 includes two templates 831a arranged opposite to each other along the X-axis direction. The mold 831 is used to accommodate and shape the packaging bag 110 filled with materials. The mold driving assembly is used to drive the two templates 831a to move relatively along the X-axis direction. The mold driving assembly includes an X-axis mold driving cylinder 832 installed on the moving seat 82 and respectively connected to the two templates 831a. The two vibration motors 833 are respectively installed on the outer sides of the templates 831a. The vibration motor 833 is used to make the mold 831 vibrate in multiple directions to make the materials in the packaging bag 110 firm (tight or tight).

[0146] A Z-axis reciprocating vibration device 84 is installed between the conveying mechanism 9 and the mold device 83 and is arranged directly below the discharge mechanism 5, and is used to hit the bottom of the packaging bag 110 back and forth during filling;

[0147] The Y-axis conveying cylinder 85 is installed on the mounting base 81 and the driving 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.

[0148] In one embodiment, referring to Fig.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 having a driving end connected to the rapping plate 843, and a linear guide assembly 845 disposed between the rapping plate 843 and the mounting base 842, wherein the rapping plate 843 can reciprocate along the Z axis through the clearance groove.

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

[0152] The filled material packaging bag 110 is transported to the vacuum heat sealing mechanism 7 through the package delivery mechanism 8 for heat sealing and vacuuming. Since the final packaging bag 110 needs to be drawn into a rectangular shape, the bag after filling must always be placed in the mold 831. Therefore, the package delivery 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 firm, providing good basic conditions for vacuuming and heat sealing. The up and down vibration is achieved by designing a Z-axis reciprocating vibration device 84, which is driven by a reciprocating cylinder 844 to reciprocate and knock the bottom of the bag (filling and vibration are carried out simultaneously).

[0153] The bag delivery mechanism 8 uses a Y-axis delivery cylinder 85 as a power source, and rollers and guide rails are provided on both sides of the moving seat 82 to achieve a smooth movement function, reduce the impact on the bag after filling, and prevent the bag from shifting or tipping over; the mold 831 template 831a can be adjusted 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, and it has high versatility. Through the application of a two-way speed control valve, the vibration at the moment of cylinder start and stop is effectively eliminated, ensuring the stability and reliability of the movement. The delivery mechanism 9 adopts a variety of delivery methods, has strong adaptability, and is equipped with a limit guide plate 91 to ensure that the bag does not deviate. This makes the delivery process smooth and efficient, ensuring that the finished bag is delivered to the next process without damage.

[0154] In addition, the entire automatic bagging process is controlled by the electrical integrated cabinet 10 equipped with a control system (such as PLC), which monitors the operating status of each link in real time to ensure stable and efficient operation of the equipment. The system is equipped with fault detection and alarm functions to respond to equipment abnormalities in a timely manner and ensure production continuity.

[0155] The automatic bagging equipment can meet the following technical indicators: the bagging success rate is 99%; the bagging machine can run at a speed of up to 500 bags per hour; the equipment design and project implementation comply with the GB / T31331-2014 (Environmental protection requirements and labels for plastic particles) standard; the design strictly implements the GB / T27738 (gravity-type automatic loading scale) standard to improve system stability.

[0156] Therefore, the various mechanisms of the automatic bagging equipment of the present invention are closely connected in movement, and their functions support each other, from the orderly bag discharge of the bag storage mechanism 1, to the stable bag taking of the bag taking mechanism 3, to the precise positioning and opening operation of the bag feeding and bag opening mechanism 4, in conjunction with the high-speed bagging action of the bag feeding manipulator 6, and the high-precision weighing and filling of the material discharge mechanism 5, and finally the vacuuming, heat sealing and bag opening arrangement are realized through the bag feeding mechanism 8 and the vacuum heat sealing mechanism 7. Under the connection of the conveying mechanism 9, the finished bag is smoothly output, forming a fully automatic plastic particle packaging process. At the same time, the structural design of each mechanism is simple and targeted, which greatly reduces the equipment failure rate, and can still remain stable under high-frequency working conditions, greatly improving production efficiency and packaging quality.

[0157] The workflow of the present invention is as follows:

[0158] The packaging bags 110 are stored in a bag frame 11 in the bag storage mechanism 1. The bag frame 11 is moved along the Y-axis direction by the Y-axis driving cylinder 12 to ensure that the packaging bags 110 are arranged in an orderly manner for subsequent bag retrieval.

[0159] Bag taking and bag delivery: the first suction cup assembly 31 in the bag taking mechanism 3 is raised and lowered to take out the packaging bag 110 in the bag storage and transfer it to the bag delivery mechanism 2; the bag delivery mechanism 2 (such as a horizontal conveyor roller, chain or belt conveyor mechanism 9) conveys the packaging bag 110 to the bag opening position, and at the same time, the position detection sensor detects the position of the bag and controls the action of the bag blocking cylinder 21 to ensure that the bag stays accurately at the bag opening position;

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

[0161] The two bag openers move away from each other, opening the bag mouth and preparing for the subsequent bagging operation.

[0162] Bagging and filling: The bagging robot 6 moves above the bag opening position and puts the packaging bag 110 with the bag opening opened into the bag clamping mechanism 51. The weighing mechanism 52 in the material discharging mechanism 5 weighs the plastic particles of a predetermined weight and fills the material into the packaging bag 110 through the bag clamping mechanism 51 to ensure that the weight of each bag is accurate and consistent.

[0163] Solid material: the package delivery mechanism 8 carries a mold device 83, which places the filled packaging bag 110 into a mold 831; the vibration motor 833 performs multi-directional vibration on the mold 831, so that the material in the packaging bag 110 is more solid and forms a rectangular parallelepiped shape, which is convenient for subsequent processing.

[0164] Vacuum treatment and heat sealing: the filled packaging bag 110 is transported by the package delivery mechanism 8 to the vacuum heat sealing mechanism 7; the vacuum heat sealing mechanism 7 performs vacuum treatment on the packaging bag 110 to remove excess air in the bag, and performs heat sealing at the same time to ensure that the packaging bag 110 is well sealed. The bag opening finishing component 77 flattens the bag opening of the packaging bag 110 through the inserting knife 772 and the smoothing rod 774 to ensure that the bag opening is neat, thereby improving the overall aesthetics of the packaging and the appearance quality of the product.

[0165] Conveying and finished product processing: After vacuum heat sealing and bag opening arrangement, the packaging bag 110 is further conveyed by the conveying mechanism 9 to complete the final packaging product.

[0166] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An automatic bagging device for plastic particles, characterized in that: It comprises a frame (100) and the following components arranged on the frame (100): A bag storage mechanism (1) for storing packaging bags (110); A bag delivery mechanism (2), arranged on one side of the bag storage mechanism (1), and used for receiving and delivering the packaging bag (110); A bag taking mechanism (3) used for transferring the packaging bag (110) in the bag storage mechanism (1) to the bag delivering mechanism (2); a bag opening mechanism (4), comprising an upper bag opener (41a) and a lower bag opener (41b) which are relatively movable, and the two bag openers are capable of respectively fixing two side surfaces of the packaging bag (110) at the bag opening position of the bag feeding mechanism (2), and opening the bag mouth of the packaging bag (110) when they are separated from each other; A material discharge mechanism (5), comprising a bag clamp mechanism (51) and a weighing mechanism (52) above the bag, wherein the weighing mechanism (52) is connected to the material bin and is used to weigh a material of a predetermined weight and fill it into the packaging bag (110) through the bag clamp mechanism (51); a bag loading robot (6) movably disposed between the bag opening mechanism (4) and the bag clamping mechanism (51), capable of inserting the packaging bag (110) with the bag opening opened into the bag clamping mechanism (51) to implement a material filling operation; A vacuum heat-sealing mechanism (7) for performing vacuum treatment and heat-sealing on the packaging bag (110) filled with material; A bag delivery mechanism (8) for transferring the packaging bag (110) filled with material to the vacuum heat sealing mechanism (7); The 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) comprises a bag frame (11) slidably connected to the frame (100) and located at the bottom of the bag delivery mechanism (2), and a Y-axis driving cylinder (12) installed on the bag frame (11) and connected to the frame (100), wherein the Y-axis driving cylinder (12) is capable of pushing the bag frame (11) out or pulling it back along the Y-axis to the bottom of the bag delivery mechanism (2), and the bag delivery mechanism (2) extends along the X-axis direction.

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

4. The 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) comprises a second suction cup assembly (411) and a second Z-axis driving cylinder (412) for driving the second suction cup assembly (411) to rise and fall.

5. The automatic bagging equipment for plastic particles according to claim 1, characterized in that: The bag loading robot (6) is installed on the frame (100) and is located above the bag opening mechanism (4), and the bag loading robot (6) comprises a rotating support seat (61), a first opening and closing cylinder (62), a rotating motor (63), a bag loading arm (64), a rotating shaft (65) and a connecting rod (66); One end of the rotating shaft (65) is connected to the rotating support seat (61) for rotation along the Y axis, and the other end is connected to the driving end of the rotating motor (63); Two upper bag arms (64) are symmetrically arranged along the middle of the rotating shaft (65), each of the upper bag arms (64) comprises 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), and the second end of each upper bag arm (64) is provided with a first rotating part (641), and the upper bag arm (64) is connected to the rotating shaft (65) by rotating in a direction perpendicular to the axis of the rotating shaft (65) via the first rotating part (641); The second end of each upper bag arm (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 respectively connected to the two upper bag arms (64) through the second rotating part (642); A third rotating part (643) is provided at the second end of one of the upper bag arms (64), close to the second rotating part (642) and away from the first rotating part (641); and a fourth rotating part (644) is provided at the second end of the other upper bag arm (64), close to the first rotating part (641) and away from the second rotating part (642); Two ends of the connecting rod (66) are respectively mounted on 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 a first position, the first ends of the two upper bag arms (64) can be inserted into the packaging bag (110) with the bag opening opened; when the rotating shaft (65) rotates to a second position, the two upper bag arms (64) can insert the packaging bag (110) with the bag opening opened into the bag clamp mechanism (51).

6. The automatic bagging device for plastic particles according to claim 1, characterized in that: The weighing mechanism (52) comprises a discharge connection bin (521), a discharge port (522) arranged on the top of the discharge connection bin (521), a weighing tank (523) arranged in 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) being connected to the discharge port (522), and the bottom of the weighing tank (523) being provided with an openable and closable material cut-off door (525); The bag clamp mechanism (51) comprises a receiving bin (511) whose upper portion is connected to the material cutting door (525), a clamping nozzle assembly (512) installed at the lower opening of the receiving bin (511) and capable of opening and closing, an opening and closing driving assembly (513) for driving the clamping nozzle assembly (512) to open and close, and a clamping plate assembly (514) located at one side of the clamping nozzle assembly (512); The nozzle assembly (512) comprises two nozzle plates (512a) respectively rotatably connected to the lower opening of the receiving bin (511); the two nozzle plates (512a) form a nozzle cavity in communication with the receiving bin (511) when closed, and expose the lower opening of the nozzle cavity when opened; The clamping plate assembly (514) comprises 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 of the nozzle clamping plates (512a); after the packaging bag (110) is inserted into the nozzle clamping assembly (512), the nozzle clamping assembly (512) can make the limiting plate (514a) cooperate with the nozzle clamping plate (512a) when opening, so as to clamp the opening edges of both sides of the packaging bag (110); The opening and closing drive assembly (513) comprises 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 mounting beam and the corresponding outer end of the nozzle clamping plate (512a) respectively.

7. The automatic bagging device for plastic particles according to claim 1, characterized in that: The vacuum heat sealing mechanism (7) comprises: A top seat (7a) mounted on the frame (100); Base (7b); An intermediate plate (7c) located between the top seat (7a) and the base (7b); A first Z-axis lifting cylinder (71), mounted on the top seat (7a) and having a driving end connected to the middle plate (7c); A second Z-axis lifting cylinder (72), mounted on the intermediate plate (7c) and having a driving end connected to the base (7b); A Z-axis guide assembly (73) comprising a guide column slidably connected to the top seat (7a) and the middle plate (7c) and connected to the base (7b); A heat sealing assembly (74) comprising two heat sealing drive cylinders (741) mounted on the base (7b) and arranged opposite to each other along the X-axis direction, and a heat sealing block (742) connected to the drive end of each of the heat sealing drive cylinders (741), wherein the two heat sealing blocks (742) can form a first channel (743) after being closed; A sealing assembly (75), comprising two sealing drive cylinders (751) mounted on the base (7b) and arranged opposite to each other and arranged along the X-axis direction, and a sealing block (752) connected to the driving end of each of the sealing drive cylinders (751), wherein the sealing block (752) is located at the lower side of 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 being closed; An air extraction component (76), comprising an air extraction drive cylinder (761), an air extraction pipe (762), an air extraction plate (763) in communication with the air extraction pipe (762) and in a flat shape, and a driving block (764) installed between the air extraction pipe (762) and the air extraction plate (763) and connected to the driving end of the air extraction drive cylinder (761), the first channel (743) and the second channel (753) being suitable for inserting the air extraction plate (763), the upper end of the air extraction pipe (762) being slidably connected to the top seat (7a) and connected to an external air extraction device, and the air extraction drive cylinder (761) being installed on the base (7b); The bag opening arrangement assembly (77) comprises two knife-slitting driving cylinders (771) mounted on the base (7b) and arranged opposite to each other in the Y-axis direction, and a knife (772) connected to the driving end of each knife-slitting driving cylinder (771), and also comprises two smoothing driving cylinders (773) mounted on the base (7b) and arranged opposite to each other in the Y-axis direction, and a smoothing assembly connected to the driving end of each smoothing driving cylinder (773), wherein the smoothing assembly comprises a smoothing rod (774) located on both sides of the knife (772) in the X-axis direction and extending along the Z-axis.

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

9. The automatic bagging device for plastic particles according to claim 8, characterized in that: The Z-axis reciprocating vibration device (84) comprises: 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); A rapping assembly comprises a mounting base (842), a rapping plate (843), a reciprocating cylinder (844) arranged on the mounting base (842) and having a driving end connected to the rapping plate (843), and a linear guide assembly (845) arranged between the rapping plate (843) and the mounting base (842), wherein the rapping plate (843) can reciprocate and vibrate along the Z axis through the clearance groove.

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

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