An automatic packaging system for ground film

Abstract

The present invention provides an automated packaging system for ground film, which mainly relates to the field of ground film packaging. The automated packaging system for ground film includes a material transfer structure, an AGV transfer vehicle, a discharge structure, and a packaging machine, which are arranged in sequence. The top of the vehicle body is provided with a carrier frame, and a plurality of carrier plates are arranged tilted from top to bottom in the carrier frame. A front lifting system is provided on the front side of the carrier frame, and the front lifting system has a tilted front guide plate that can be raised and lowered. A rear lifting system is provided on the rear side of the carrier frame, and the rear lifting system has a tilted rear guide plate that can be raised and lowered. The discharge structure includes an inclined silo. When the discharge baffle releases the ground film, the ground film rolls onto the conveyor belt of the packaging machine for packaging. The beneficial effect of the present invention is that the present invention can achieve smooth docking between the ground film winding process and the packaging process, realize the automated packaging of ground film according to specifications, and reduce costs and increase efficiency.

Description

Technical Field

[0001] The present invention mainly relates to the field of ground film packaging, and in particular to an automatic ground film packaging system. Background Art

[0002] The mixing, extrusion, cooling, curing, stretching, and winding processes of agricultural mulch films are now automated. However, after the film is rolled off the production line, it still needs to be sealed for final packaging. Currently, mulch film packaging is mostly done manually, using manual heat sealing to complete the packaging. However, the automated processing of mulch films is very efficient. A roll of conventional-sized mulch film can usually be rolled off the production line in just a few minutes. Furthermore, the heavy weight of the mulch film makes packaging a laborious, labor-intensive process that consumes a lot of human resources.

[0003] Currently, there are also automatic bagging equipment to realize the packaging of ground film. However, for ground film of multiple specifications, the bag changing time is long and the ground film cannot be packaged continuously. Overall, the packaging cost is not cost-effective compared with manual packaging.

[0004] Furthermore, current packaging equipment cannot achieve continuity between the film winding and packaging processes. There are no strict production standards for film specifications; production is often tailored to the customer's desired width and total length. This results in a wide variety of film packaging sizes. Companies often operate multiple production lines simultaneously, producing a variety of film specifications. This makes it easy for multiple film rolls to be produced simultaneously without proper packaging, leading to the accumulation of certain film specifications and the inability to ensure smooth and continuous film production. Summary of the Invention

[0005] In order to address the deficiencies of the prior art, the present invention provides an automated packaging system for ground film, which can achieve smooth docking of the ground film winding process and the packaging process, realize automated packaging of ground film according to specifications, and reduce costs and increase efficiency.

[0006] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0007] An automated packaging system for ground film includes a material transfer structure, an AGV transfer vehicle, a discharge structure, and a packaging machine, which are sequentially arranged. The material transfer structure is connected to the end of the ground film production line, and the ground film that has been wound into a roll is temporarily stored at the material transfer structure waiting for transfer. The AGV transfer vehicle is used to connect the ground film production line and the packaging machine, serving as a connection between the two processes. The AGV transfer vehicle is wirelessly controlled by a terminal controller. The AGV transfer vehicle travels back and forth between multiple material transfer structures and discharge structures according to a set route based on a set program, and transfers ground films of different specifications to the discharge structure according to their diameters, and distributes them to packaging machines of corresponding specifications for packaging according to their specifications. This system has strong coherence and can realize the automated operation of the entire process from production to packaging of ground films. It has high packaging efficiency, a high degree of automation, and low cost, and can meet the demand for automated packaging according to specifications in the production of ground films of multiple specifications.

[0008] The transfer mechanism is used to transfer wound mulch to an AGV for transport. The AGV comprises a body with a carrier frame mounted on top. Several carrier plates are tilted downward within the carrier frame, and a liftable carrier baffle is positioned behind each carrier plate. The carrier plates serve as storage locations for mulch, carrying mulch of varying specifications and facilitating their transport by diameter.

[0009] The front side of the carrier is equipped with a front lifting system, which is equipped with a tilted front deflector that can be raised or lowered. A front baffle that can be raised or lowered is provided behind the front deflector. The rear side of the carrier is equipped with a rear lifting system, which is equipped with a tilted rear deflector that can be raised or lowered. A rear baffle that can be raised or lowered is provided behind the rear deflector. The front and rear deflectors cooperate to form a structure for receiving and exporting the ground film. Driven by the lifting system, the front and rear deflectors can smoothly dock with the carrier plate, which serves as the ground film storage station, thereby completing the storage and export of the ground film.

[0010] The unloading structure includes an inclined silo with a unloading baffle at the bottom. The silo corresponds to the packaging machine. When the unloading baffle releases the ground film, the ground film rolls onto the conveyor belt of the packaging machine for packaging.

[0011] Preferably, the material transfer structure includes an inclined supporting platform, a material transfer flap is hinged at the end of the supporting platform, and a turning cylinder is hinged between the bottom of the material transfer flap and the bracket of the supporting platform. When the turning cylinder is in a retracted state, the material transfer flap is in a horizontal state and the height of the material transfer flap is consistent with the height of the end of the supporting platform; a first baffle that can be raised and lowered is provided at the end of the supporting platform, and a second baffle that can be raised and lowered is provided at the end of the material transfer flap. By using the flip unloading structure, the ground film can be stably transferred to the front guide plate of the AGV transfer vehicle. The overall structure of this material transfer structure is simple, the operation is reliable, and it can perfectly perform the transfer of ground film.

[0012] Preferably, a third baffle is installed in front of the first baffle, and the distance between the third baffle and the first baffle is adapted to the diameter of the ground film. This alternating release structure ensures that when the amount of ground film exceeds the load limit of the AGV, the excess ground film can be accurately intercepted, ensuring the smooth operation of the AGV.

[0013] Preferably, the installation position of the third baffle and / or the first baffle is adjustable, so that the distance between the third baffle and the first baffle is adjustable. This adjustable spacing structure design can be adjusted according to the diameter of the mulch film being produced on the production line, so that it can adapt to the needs of alternating release of mulch films of different diameters.

[0014] Preferably, the unloading structure corresponds to the packaging machine one-to-one, and the bottom outlet of the silo is one ground film diameter away from the conveyor belt of the packaging machine.

[0015] Preferably, the unloading structure corresponds to multiple packaging machines, and the multiple packaging machines are arranged in an array, and the starting points of the multiple packaging machines are consistent; the unloading structure is located on the side of the outermost packaging machine, and a positioning platform is provided below the unloading structure. The positioning platform is used to position the ground film released from the silo and wait for it to be grabbed. A sorting mechanism is provided above the packaging machine. The sorting mechanism is used to grab the ground film on the positioning platform and transfer it to the corresponding packaging machine according to specifications. By adding a sorting mechanism to further sort ground films of different specifications, the task of targeted packaging of ground films according to specifications can be completed. The sorting mechanism operates synchronously with the packaging machine, which can reduce the travel of the AGV transfer vehicle to a certain extent and improve the transfer efficiency.

[0016] Preferably, the material distribution mechanism includes a truss arranged above the packaging machine, a horizontal slide rail perpendicular to the packaging machine arrangement direction and a material distribution drive mechanism are provided on the truss, a material distribution seat is slidably provided on the horizontal slide rail, a lifting frame is provided at the bottom of the material distribution seat, a material distribution slide rail is provided at the bottom of the lifting frame, a left material distribution screw and a right material distribution screw are provided on both sides of the material distribution slide rail, and a left material distribution clamp adapted to the left material distribution screw and a right material distribution clamp adapted to the right material distribution screw are slidably provided at both ends of the material distribution slide rail. Through the structure of the truss manipulator, the ground film can be stably grasped and sorted, so that ground films of different specifications can complete their respective packaging tasks.

[0017] Preferably, the left material dividing clamp and the right material dividing clamp are coaxially arranged column structures. When the left material dividing clamp and the right material dividing clamp move toward each other, the column is inserted into the ground film reel to complete the grabbing of the ground film.

[0018] Preferably, the left material dividing clamp and the right material dividing clamp both include a clamping cylinder and two symmetrically arranged clamping jaws, and a long groove with a width greater than the diameter of the ground film roll is provided on the inner side of the two clamping jaws.

[0019] Both of the above grabbing structures can realize the grabbing of the ground film roll, and can adapt to the grabbing position error caused by the change of the ground film diameter within a certain range.

[0020] Preferably, the positioning platform is tilted, a positioning block is provided at the end of the positioning platform, the bottom outlet of the silo is located at the front end of the positioning platform, the positioning block blocks the ground film so that the ground film is arranged in a row on the positioning platform, and the ground film blocked by the positioning block is the ground film to be grabbed.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The present invention connects the mulch film production process with the packaging process through the AGV transfer vehicle, completing the automated transfer process after the mulch film comes off the production line. By connecting the transfer and unloading structures with the AGV transfer vehicle, the labor intensity and low efficiency of manual handling during the mulch film transfer process are solved, the last link in mulch film production that requires manual labor is eliminated, and fully automated mulch film production is achieved.

[0023] The AGV transfer vehicle of the present invention acts as a ground film transfer station through the stacked carrier plates, which can realize the transfer of ground films according to specifications. When the workshop produces ground films of multiple specifications simultaneously, it can still take into account the transportation and packaging of the ground films, will not cause material accumulation, and can realize the assembly line operation of ground film production, thereby improving the fluency and production efficiency of the production process.

[0024] The ground film packaging machine of the present invention adopts a heat-sealing method for packaging. By controlling the heat-sealing temperature, relatively compact packaging can be performed without damaging the ground film, thereby greatly improving the packaging efficiency of the ground film and reducing the labor intensity of manual packaging.

[0025] The packaging machine of the present invention is set according to specifications and packages ground films of corresponding specifications respectively. The packaging process is smooth, and the ground films are distributed through the AGV transfer vehicle or the material distribution device. The overall process is highly automated and informationized. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Attachment Figure 1 This is a structural diagram of embodiment 2 of the present invention;

[0027] Attachment Figure 2 This is a schematic structural diagram of embodiment 3 of the present invention;

[0028] Attachment Figure 3 This is a schematic diagram of the structure of the AGV transfer vehicle of the present invention;

[0029] Attachment Figure 4 This is a schematic cross-sectional view of the AGV transfer vehicle of the present invention;

[0030] Attachment Figure 5 This is a schematic diagram of the coordination between the AGV transfer vehicle and the material transfer structure of the present invention;

[0031] Attachment Figure 6 This is a schematic diagram of the coordination between the AGV transfer vehicle and the unloading structure of the present invention;

[0032] Attachment Figure 7 It is a structural schematic diagram of the material distribution mechanism of the present invention;

[0033] Attachment Figure 8 It is a structural schematic diagram of the material dividing fixture of the present invention;

[0034] Attachment Figure 9 This invention Figure 2 Schematic diagram of the partially enlarged structure of part A in the middle.

[0035] Reference numerals shown in the accompanying drawings: 1, material transfer structure; 2, AGV transfer vehicle; 3, front lifting system; 4, rear lifting system; 5, unloading structure; 6, packaging machine; 7, material distribution mechanism; 8, material distribution seat; 11, carrying platform; 12, material transfer flap; 13, turning cylinder; 14, first baffle; 15, second baffle; 16, third baffle; 21, carrier frame; 22, carrier plate; 23, carrier baffle; 31, front guide plate; 32, front baffle; 33, front lifting track; 34. Front lifting mechanism; 41. Rear guide plate; 42. Rear baffle; 43. Rear lifting track; 44. Rear lifting mechanism; 51. Material bin; 52. Unloading baffle; 53. Positioning table; 54. Positioning block; 71. Truss; 72. Horizontal slide rail; 73. Material distribution drive mechanism; 81. Lifting frame; 82. Material distribution slide rail; 83. Left material distribution screw; 84. Left material distribution fixture; 85. Right material distribution screw; 86. Right material distribution fixture; 87. Clamping cylinder; 88. Long slot. DETAILED DESCRIPTION

[0036] Combined with attachment Figure 1-9 The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are intended to illustrate the present invention only and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application. Example 1

[0037] As shown in the figure, the present invention provides an automated mulch film packaging system. This system is connected after the mulch film winding equipment and is used to receive and transport the wound mulch film to the packaging equipment for packaging. The mulch film transfer device uses an AGV transfer vehicle 2. The AGV transfer vehicle 2 has multiple workstations for storing mulch films of different diameters and specifications, which can meet the packaging and transfer needs of mulch films of different specifications when they are produced simultaneously.

[0038] Specifically, this system mainly includes the following parts:

[0039] Material transfer structure 1: used to transfer the ground film that has been wound and placed on the material receiving platform to the AGV transfer vehicle.

[0040] AGV transfer vehicle 2: used to receive and store ground films of different specifications in categories, and at the same time complete the transfer of ground films from the winding equipment to the packaging equipment.

[0041] Unloading structure 5; used to transfer the ground film from the AGV transfer vehicle 2 to the packaging equipment, waiting for packaging by the packaging equipment.

[0042] Packaging machine 6; used for covering and packaging ground films of the same specifications, through the heat shrink process so that the packaging film can completely cover the ground film, while strictly controlling the temperature, while achieving the ground film covering packaging, without damaging the ground film itself.

[0043] Material transfer structure:

[0044] Material transfer is the first step of this system. The material transfer structure 1 can adopt a flap device or a material taking robot. The flap device has a simple structure and low cost. The present invention preferably uses a flap device to transfer the ground film. Specifically, the flap device includes an inclined supporting platform 11. A first baffle 14 driven by a cylinder is provided at the end of the supporting platform 11. The first baffle 14 is used to limit and block the wound ground film. Lifting cylinders are symmetrically installed at both ends of the first baffle 14. When the lifting cylinder drives the first baffle 14 to rise, the ground film can continue to slide downstream on the inclined supporting platform 11. The material transfer flap 12 is installed downstream of the supporting platform 11. The downstream of the material transfer flap 12 is hinged to the frame. The bottom of the material transfer flap 12 is hinged to the frame through a cylinder or a hydraulic cylinder. The cylinder or hydraulic cylinder acts as a turning cylinder 13 to drive the material transfer flap 12. When the turning cylinder 13 is retracted, the material transfer flap 12 is horizontal, and the front side of the material transfer flap 12 is at the same height as the end of the supporting platform 11. When the turning cylinder 13 is extended, the material transfer flap 12 is tilted, and the ground film falls on the tilted material transfer flap 12 and falls onto the AGV transfer vehicle 2 for loading.

[0045] Furthermore, in order to prevent the ground film on the material transfer flap 12 from rolling to the ground after falling from the supporting platform 11, a second baffle 15 is installed at the end of the material transfer flap 12 in this embodiment. The second baffle 15 is also driven by a cylinder. When the cylinders on both sides are extended, the second baffle 15 can be extended to block the ground film. After the cylinders on both sides are contracted, the second baffle 15 slides to the bottom of the material transfer flap 12 to release the ground film.

[0046] AGV transfer vehicle:

[0047] As a carrying and transporting mechanism for ground films, in order to be able to adapt to the needs of producing ground films of different specifications, the AGV transfer vehicle 2 in this embodiment has multiple workstations for placing ground films of different diameters. The AGV transfer vehicle 2 includes a vehicle body, which is a self-powered vehicle body. It uses its own battery as a power source and is driven by a motor to maintain operation. The AGV transfer vehicle 2 has a carrier frame 21 on the top, and a multi-layer carrier plate 22 on the carrier frame 21. The carrier plate 22 is in an inclined state with a high front and a low rear side. In this embodiment, three carrier plates 22 are evenly arranged on the carrier frame 21 from top to bottom. The three carrier plates 22 can classify and transport ground films of three diameters respectively.

[0048] A front lifting system 3 is provided at the front side of the AGV transfer vehicle 2 , and a rear lifting system 4 is provided at the rear side of the AGV transfer vehicle 2 .

[0049] The carrier plate 22 is used to carry mulch films of the same diameter. A carrying baffle 23 is installed on the rear side of the carrier plate 22. Both ends of the carrying baffle 23 are driven by a carrying slide cylinder, which drives the carrying baffle 23 up and down. When the carrying slide cylinder extends, the carrying baffle 23 extends above the carrier plate 22 to store the mulch films on the carrier plate 22. When the carrying slide cylinder retracts, the carrying baffle 23 descends below the carrier plate 22, exposing the carrier plate 22 and allowing the mulch films on the carrier plate 22 to roll onto the rear guide plate 41.

[0050] The front lifting system 3 includes front lifting rails 33 symmetrically arranged on the front and rear sides of the carrier 21. A front lifting mechanism 34 is arranged outside the front lifting rails 33. Front guide plates 31 are slidingly arranged on the front lifting rails 33 on both sides. The front guide plates 31 are tilted, with the front higher and the rear lower. Front baffles 32 are arranged on the rear side of the front guide plates 31. Both sides of the front baffles 32 are driven by the front slide cylinder. When the front slide cylinder is in the extended state, the front baffles 32 are raised to block the ground film on the front guide plates 31. When the front slide cylinder is in the retracted state, the front baffles 32 are lowered, and the top of the front baffles 32 is aligned with the rear side of the front guide plates 31, releasing the ground film onto its corresponding carrier plate 22 for transportation. The front guide plates 31 dock with carrier plates 22 of different heights to guide ground films of different specifications to different carrier plate 22 workstations for storage. When the ground film needs to be guided to the corresponding carrier plate 22 through the front guide plate 31, the front lifting mechanism 34 is driven so that the rear side of the front guide plate 31 can just correspond to the front height of the carrier plate 22 that needs to carry the ground film, so that the ground film rolls onto the carrier plate 22 for transportation under the action of gravity.

[0051] The rear lifting system 4 includes rear lifting rails 43 symmetrically arranged on both sides of the rear of the carrier 21. A rear lifting mechanism 44 is arranged outside the rear lifting rails 43. Rear guide plates 41 are slidingly arranged on the rear lifting rails 43 on both sides. The rear guide plates 41 are inclined with the front higher and the rear lower. Rear baffles 42 are arranged on the rear side of the rear guide plates 41. Both sides of the rear baffles 42 are driven by the rear slide cylinder. When the rear slide cylinder is in the extended state, the rear baffles 42 are raised to block the ground film on the rear guide plates 41. When the rear slide cylinder is in the retracted state, the rear baffles 42 are lowered, and the top of the rear baffles 42 is aligned with the rear side of the rear guide plates 41, releasing the ground film onto the unloading structure 5 for temporary storage. The rear guide plates 41 are docked with the carrier plates 22 at different heights to transfer the ground film from different carrying stations to the corresponding unloading structure 5 for temporary storage. When the ground film on the carrier plate 22 needs to be unloaded, the rear guide plate 41 is driven to rise and fall by the rear lifting mechanism 44, so that the front side of the rear guide plate 41 corresponds to the height of the rear side of the carrier plate 22 where the ground film needs to be unloaded, so that the ground film rolls to the unloading structure 5 for temporary storage under the action of gravity.

[0052] The front lifting mechanism 34 and the rear lifting mechanism 44 have the same structure. Both are synchronous belts or synchronous chain mechanisms symmetrically arranged on both sides of the carrier 21. The pulley or sprocket on the top is the driving wheel, and the driving wheels on both sides are coaxially installed in the middle through the drive shaft, and the middle part of the drive shaft is driven by the drive motor.

[0053] Discharge Structure: The discharge structure 5 consists of an inclined silo 51, slightly wider than the diameter of the ground film. Once the ground film is released into the discharge structure 5, it is stacked and placed within it. In this embodiment, each discharge structure 5 corresponds to one packaging machine 6. The discharge structure 5 is mounted on one side of the corresponding packaging machine 6. A discharge baffle 52 is installed at the bottom of the discharge structure 5, mounted at the bottom of the silo 51. The discharge baffle 52 is driven by the discharge slide cylinders on both sides. When the discharge slide cylinders drive the discharge baffle 52 to retract, the bottom opening of the silo 51 is opened, allowing the ground film to fall onto the conveyor belt of the packaging machine 6. The height of the bottom opening of the silo 51 from the conveyor belt is slightly greater than the diameter of the ground film. After releasing one ground film, the subsequent ground film is extended by the slide cylinder to drive the unloading baffle 52 to squeeze and limit the ground film. Only when the previous ground film enters the packaging process and the release space below is vacated, the unloading slide cylinder will drive the unloading baffle 52 to contract and release the next ground film.

[0054] Packaging machine 6 utilizes a pillow-type packaging machine. Two rows of soft stoppers are arranged on the conveyor belt of packaging machine 6. The ground film is restrained by these two rows of stoppers, ensuring stability during the packaging process. The sealing temperature of packaging machine 6 is adjusted to 120±5°C, ensuring that the packaging film is heated and sealed without damaging the outer layer of the ground film.

[0055] Conventional agricultural mulch film typically takes several minutes to roll, but wrapping it takes only seconds. Thanks to the self-identification function of the packaging machine 6, it can be started and stopped at any time, allowing for timely disposal of incoming mulch film and rapid packaging. While the packaging machine 6 is fast, the width of the packaging material (plastic film) is fixed. Different diameters of mulch require different widths of plastic film, which is time-consuming to replace. Therefore, one packaging machine 6 is used to package each mulch film size. The pillow packaging machine 6 is also affordable and well within the price range.

[0056] When the AGV transfer vehicle 2 is used to transfer the ground film, the process is as follows: after the ground film is wound, the ground film is grabbed by the robot and transferred to the carrying platform 11. At this time, the ground film winding production line sends a signal to the main controller. After the main controller receives the signal of the ground film winding device of this specification, it controls the AGV transfer vehicle 2 to move to the carrying platform 11. At the same time, the second baffle 15 rises to release the ground film to the material transfer flap 12. When the AGV transfer vehicle 2 is docked with the material transfer flap 12, the front guide plate 31 on the AGV transfer vehicle 2 rises to the same height as the material transfer flap 12, and then the second baffle 15 rises to release the ground film onto the front guide plate 31. The front guide plate 31 descends to the corresponding carrier plate 22 position according to the specifications of the ground film, and then the front baffle 32 descends to release the ground film to the corresponding carrier plate 22 for storage. The AGV transfer vehicle 2 can carry out multiple transports of ground films of various specifications each time. When at least one of the carrying plates 22 is fully loaded, the AGV transfer vehicle 2 drives the ground films to be moved to the unloading structure 5 of the packaging machine 6 for temporary storage.

[0057] As needed, the AGV transfer vehicle 2 can adopt a multi-vehicle collaboration mode, and control multiple AGV transfer vehicles 2 through the main controller to classify and transfer ground films of different specifications to meet the needs of synchronous production of multiple specifications of ground films in large workshops.

[0058] The specifications of the mulch films are classified solely based on their diameter, and the length of the mulch films is not considered. This is because the length of the mulch films can be automatically cut to suit the packaging of the mulch films by the self-identification function of the packaging machine 6 during packaging. Furthermore, when mulch films are classified by specifications, mulch films within the same diameter range are classified as the same specification. For example, mulch films with diameters between 10 and 12 cm are classified as the same specification. When the mulch films are plastic-sealed, the plastic-sealing temperature for large-diameter mulch films of the same specification is set at the lower limit of the set temperature, while the plastic-sealing temperature for small-diameter mulch films is set at the upper limit of the set temperature. This allows the thermal shrinkage of the packaging film to be controlled by temperature, minimizing damage to the mulch films while ensuring they are packaged in a good condition.

[0059] In addition, according to our experiments, even if a higher plastic sealing temperature (150 degrees) is used to heat-seal the plastic film of the ground film packaging, only the first three layers of the ground film will be damaged after unsealing. Therefore, the pillow packaging machine 6 is used for heat sealing. The heat-sealing packaging of the ground film can be achieved by reasonably controlling the heat sealing temperature. Example 2

[0060] Based on Example 1, when the efficiency of the film winding equipment is higher than the transfer efficiency, the carrying platform 11 will carry a large amount of film. At this time, if the AGV transfer vehicle 2 cannot transfer all the film at once, a third baffle 16 can be added to the carrying platform 11. The third baffle 16 is installed in front of the first baffle 14 and has the same structure as the first baffle 14. The distance between the third baffle 16 and the first baffle 14 is slightly larger than the diameter of the film, so that the film can be released sequentially by alternating opening and closing of the first baffle 14 and the second baffle 15.

[0061] Furthermore, in order to adapt to the production of mulch films of different specifications, the installation position of the third baffle 16 and / or the first baffle 14 is adjustable. Specifically, the cylinder mounting frames on both sides of the third baffle 16 and / or the first baffle 14 are fixed by bolts, and there is a long hole on the supporting platform 11, so that the cylinder mounting position on both sides of the third baffle 16 and / or the first baffle 14 is adjustable, thereby adjusting the distance between the first baffle 14 and the second baffle 15, so that it can adapt to the transfer of mulch films of different diameters. Example 3

[0062] Based on Example 1 or Example 2, in this embodiment, one unloading structure 5 corresponds to multiple packaging machines 6. This correspondence method can make the unloading position of the AGV transfer vehicle 2 relatively fixed, while saving layout space, so that the packaging machines 6 can be arranged side by side, making the overall layout more compact and regular.

[0063] Specifically, in this embodiment, a positioning platform 53 is positioned below the discharge structure 5. Positioning blocks 54 are installed on the positioning platform 53 to limit the position of the ground film. The bottom outlet of the hopper 51 is located at the front end of the positioning platform 53. The positioning blocks 54 block the ground film, allowing it to be arranged in a row on the positioning platform 53. When the discharge baffle 52 at the bottom of the discharge structure 5 is opened, the ground film rolls onto the positioning platform 53 and is arranged in an array. A material distribution mechanism 7 is installed above the multiple packaging machines 6 to transfer the ground film according to specifications to the corresponding packaging machines 6 for packaging.

[0064] The material distribution mechanism 7 includes a truss 71 that spans above the packaging machine 6. The truss 71 is provided with a horizontal slide rail 72 perpendicular to the arrangement direction of the packaging machine 6 and a material distribution drive mechanism 73. In this embodiment, the horizontal slide rail 72 is divided into two pairs, one on each side. A material distribution base 8 is slidably mounted between the two pairs of horizontal slide rails 72. The material distribution drive mechanism 73 is driven by a synchronous belt, a drive screw, or a gear rack mechanism. The material distribution drive mechanism 73 is installed between the pair of horizontal slide rails 72 on each side. The material distribution drive mechanism 73 is used to drive the material distribution base 8 to slide back and forth stably along the horizontal slide rail 72. Specifically, in this embodiment, the material distribution drive mechanism 73 adopts a gear rack mechanism. In this embodiment, one of the pair of horizontal slide rails 72 on the same side has a rack on its inner side. The material distribution base 8 is provided with a drive motor. The drive motor achieves reciprocating sliding of the material distribution base 8 through the engagement of the driving gear and the rack.

[0065] A lifting frame 81 is mounted on the material distribution seat 8. The lifting frame 81 is driven by a gear rack mechanism driven by a motor. A material distribution slide 82 is mounted at the bottom of the lifting frame 81. The material distribution slide 82 is parallel to the layout direction of the packaging machine 6. A left material distribution screw 83 and a right material distribution screw 85 are mounted on both sides of the material distribution slide 82. A left material distribution fixture 84 and a right material distribution fixture 86 are slidably mounted on the left and right sides of the material distribution slide 82. The left material distribution fixture 84 is driven by the left material distribution screw 83, and the right material distribution fixture 86 is driven by the right material distribution screw 85. Both the left material distribution screw 83 and the right material distribution screw 85 are driven by servo motors. By driving the left material distribution fixture 84 and the right material distribution screw 86 separately, different lengths of ground film can be grabbed. During the transportation of the ground film, the ground film may not be placed symmetrically with the dividing seat 8 as the center. In order to avoid the operation of the dividing seat 8 being restricted due to the imbalance, the width between the two pairs of horizontal slide rails 72 in this embodiment is maintained at more than 1 meter, thereby increasing the bearing capacity of the dividing seat 8 by increasing the span.

[0066] In this embodiment, the left and right feed clamps 84 and 86 can be inserted or clipped. The inserted clamp is a cylinder with a diameter smaller than the inner hole of the film reel. By moving the left and right feed screws 83 and 85 toward each other, the two cylinders can be inserted into the inner holes at both ends of the film reel, thereby grasping the film. When the film is released, the left and right feed clamps 84 and 86 can be quickly moved in opposite directions to release the film. Furthermore, to ensure that the left and right feed clamps 84 and 86 can stabilize the film, sensors are installed at the base of the cylindrical left and right feed clamps 84 and 86. When the sensors at the base contact the film reel, they are triggered, indicating that the feed clamp on that side is in place.

[0067] Insertion-type clamps facilitate the gripping of ground films, but positioning can be inaccurate when gripping ground films of different specifications. Therefore, when the size of ground films varies widely, a more complex clamping-type clamp is used. The clamping-type clamp is driven by a clamping cylinder 87, which drives the two clamping jaws to move toward or in opposite directions, thereby achieving the gripping and release of the ground film. The inner side of the clamping jaw has a long groove 88. When the two clamping jaws are docked, a closed space is formed with semicircular top and bottom and a rectangular middle. The width of the closed space is greater than the diameter of the ground film reel. This structure can adapt to ground films of different specifications, offset the differences in gripping height and gripping position caused by different ground film diameters, and facilitate the gripping of ground films.

[0068] Furthermore, in order to locate the grabbing position when grabbing the ground film, a locator is added to the outside of the left dividing clamp 84 and the outside of the right dividing clamp 86. When grabbing the ground film, the left dividing clamp 84 is driven by the left dividing screw 83 to move toward the ground film, and the right dividing clamp 86 is driven by the right dividing screw 85 to move toward the ground film. The locator will first touch the end of the ground film. At this time, the dividing clamp on this side reaches the grabbing position, and the positioning operation of the dividing clamp when grabbing the ground film is completed.

[0069] The mulch film is transferred to the corresponding packaging machine 6 according to its specifications through the material distribution mechanism 7, and the packaging machine 6 completes the final packaging of the mulch film. After the mulch film is packaged, the end of the packaging machine 6 is equipped with a palletizing robot to grab the packaged mulch film and stack it onto a pallet according to the specifications, thus automating the entire mulch film packaging process.

Claims

1. A ground film automated packaging system, comprising a material transfer structure (1), an AGV transfer vehicle (2), a material unloading structure (5) and a packaging machine (6) arranged in sequence, characterized in that: The material transfer structure (1) is used to transfer the wound ground film to the AGV transfer vehicle (2) for transportation. The AGV transfer vehicle (2) is used to receive the ground film and classify and store the ground film of different specifications. The AGV transfer vehicle (2) includes a vehicle body, a carrier frame (21) is provided on the top of the vehicle body, a plurality of carrier plates (22) are arranged in an inclined manner from top to bottom in the carrier frame (21), a liftable carrier baffle (23) is provided on the rear side of the carrier plate (22), a front lifting system (3) is provided on the front lifting system (3), and a liftable inclined front guide plate (31) is provided on the front lifting system (3). A front baffle (32) that can be lifted and lowered is provided on the rear side of the guide plate (31), a rear lifting system (4) is provided on the rear side of the carrier (21), a rear lifting system (4) is provided with a liftable inclined rear guide plate (41), a rear baffle (42) that can be lifted and lowered is provided on the rear side of the rear guide plate (41), the unloading structure (5) includes an inclined silo (51), a unloading baffle (52) is provided at the bottom of the silo (51), the silo (51) corresponds to the packaging machine (6), and when the unloading baffle (52) releases the ground film, the ground film rolls onto the conveyor belt of the packaging machine (6) for packaging; the unloading The structure (5) corresponds to a plurality of packaging machines (6), and the plurality of packaging machines (6) are arranged in an array, and the starting points of the plurality of packaging machines (6) are consistent; the unloading structure (5) is located on the side of the outermost packaging machine (6), and a positioning platform (53) is arranged below the unloading structure (5), and the positioning platform (53) is used to position the ground film released from the silo (51) and wait for it to be grabbed. A material distribution mechanism (7) is arranged above the packaging machine (6), and the material distribution mechanism (7) is used to grab the ground film on the positioning platform (53) and transfer it to the corresponding packaging machine (6) according to the specifications; the material distribution mechanism (7) includes a truss (7) arranged above the packaging machine (6) 1), a transverse slide rail (72) and a material distribution driving mechanism (73) perpendicular to the arrangement direction of the packaging machine (6) are provided on the truss (71), a material distribution seat (8) is slidably provided on the transverse slide rail (72), a lifting frame (81) is provided at the bottom of the material distribution seat (8), a material distribution slide rail (82) is provided at the bottom of the lifting frame (81), a left material distribution screw (83) and a right material distribution screw (85) are provided on both sides of the material distribution slide rail (82), and a left material distribution clamp (84) adapted to the left material distribution screw (83) and a right material distribution clamp (86) adapted to the right material distribution screw (85) are slidably provided at both ends of the material distribution slide rail (82).

2. The automatic packaging system for ground film according to claim 1, characterized in that: The material transfer structure (1) includes an inclined supporting platform (11), a material transfer flap (12) is hinged at the end of the supporting platform (11), and a turning cylinder (13) is hinged between the bottom of the material transfer flap (12) and the bracket of the supporting platform (11). When the turning cylinder (13) is in a retracted state, the material transfer flap (12) is in a horizontal state and the height of the material transfer flap (12) is consistent with the height of the end of the supporting platform (11); a first baffle (14) that can be lifted and lowered is provided at the end of the supporting platform (11), and a second baffle (15) that can be lifted and lowered is provided at the end of the material transfer flap (12).

3. The automatic packaging system for ground film according to claim 2, characterized in that: A liftable third baffle (16) is provided on the front side of the first baffle (14), and the distance between the third baffle (16) and the first baffle (14) is adapted to the diameter of the ground film.

4. The automatic packaging system for ground film according to claim 3, characterized in that: The installation position of the third baffle (16) and / or the first baffle (14) is adjustable, so that the distance between the third baffle (16) and the first baffle (14) is adjustable.

5. The automatic packaging system for ground film according to claim 1, characterized in that: The left material dividing clamp (84) and the right material dividing clamp (86) are coaxially arranged column structures. When the left material dividing clamp (84) and the right material dividing clamp (86) move toward each other, the column is inserted into the ground film reel to complete the grasping of the ground film.

6. The automatic packaging system for ground film according to claim 1, characterized in that: The left material distributing clamp (84) and the right material distributing clamp (86) both comprise a clamping cylinder (87) and two symmetrically arranged clamping jaws, and the inner sides of the two clamping jaws are each provided with a long groove (88) having a width greater than the diameter of the ground film reel.

7. The automatic packaging system for ground film according to any one of claims 1, 2, 5 and 6, characterized in that: The positioning platform (53) is tilted, and a positioning block (54) is provided at the end of the positioning platform (53). The bottom outlet of the silo (51) is located at the front end of the positioning platform (53). The positioning block (54) blocks the ground film so that the ground film is arranged in a row on the positioning platform (53). The ground film blocked by the positioning block (54) is the ground film to be grabbed.

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