A pellet destacking production line

Abstract

This application relates to the technical field of granular material processing, and more particularly to a granular material depalletizing production line, which includes a first conveying device, a depalletizing bin, a second conveying device, and a material collection trough. The first conveying device is connected to the depalletizing bin for conveying bagged granular material into the depalletizing bin. The depalletizing bin is equipped with a cutting device for cutting open the packaging bags, and a shaking device is also provided in the depalletizing bin for shaking the cut packaging bags to separate the granular material from the packaging bags. The second conveying device is connected to the depalletizing bin and the material collection trough to convey the granular material in the depalletizing bin into the material collection trough. This application replaces manual labor in conveying granular material and in separating the packaging bags and granular material from the bagged granular material, which is highly efficient and helps to save a lot of labor and reduce enterprise costs.

Description

Technical Field

[0001] This application relates to the technical field of pellet processing, and more specifically, to a pellet destacking production line. Background Technology

[0002] To facilitate transportation, granular materials are usually packaged in bags. When using them, the granules need to be removed from the bags and placed in the appropriate locations to proceed with the next step. In related technologies, the transportation of bagged granules to the appropriate locations and the unpacking and dumping of granules are usually done manually. Manual handling, unpacking, and dumping of bagged granules is inefficient and results in high labor costs for enterprises. Summary of the Invention

[0003] To address the issues of low efficiency and high labor costs associated with manually transporting, unpacking, and dumping bagged granules, this application provides a granule depalletizing production line.

[0004] A pellet depalletizing production line includes a first conveying device, a depackaging bin, a second conveying device, and a material collection trough. The first conveying device is connected to the depackaging bin for conveying bagged pellets into the depackaging bin. The depackaging bin is equipped with a cutting device for cutting open the packaging bags, and a shaking device is also provided in the depackaging bin for shaking the cut packaging bags to separate the pellets from the packaging bags. The second conveying device is connected to the depackaging bin and the material collection trough to convey the pellets in the depackaging bin into the material collection trough.

[0005] Preferably, the unpacking compartment includes a connecting frame and a compartment body. The compartment body is funnel-shaped and fixed to the connecting frame, with the large opening of the compartment body facing upwards and the small opening facing downwards. The first conveying device is connected to the compartment body. The cutting device is fixed to one side of the large opening end of the compartment body and is located on the conveying path of the first conveying device. The shaking device is located in the middle of the compartment body and is located on the conveying path of the first conveying device. The second conveying device is connected to the small opening end of the compartment body.

[0006] Preferably, the cutting device includes a first rotating shaft, a cutter, and a first driving assembly. The first rotating shaft is rotatably connected to the chamber body, and the first driving assembly is fixed to the chamber body and connected to the first rotating shaft to drive the first rotating shaft to rotate. The number of cutters is several, and the several cutters are all connected and fixed to the first rotating shaft, and the several cutters are evenly arranged along the length direction of the first rotating shaft.

[0007] Preferably, the material shaking device includes a camshaft, a second rotating shaft, a second drive assembly, a first fixed frame, and a movable frame. The number of camshafts is at least four. Two camshafts are located on one side of the bin and rotatably connected to the bin, while the other two camshafts are located on the other side of the bin and rotatably connected to the bin. All four camshafts are arranged in parallel and parallel to the first rotating shaft, with the two camshafts on one side of the bin aligned with the other two camshafts. Each camshaft has one cam. The number of second rotating shafts is two. One second rotating shaft has both ends rotatably connected to the cams on the two aligned camshafts, while the other second rotating shaft has both ends rotatably connected to the other two aligned cams. The cam shaft is rotatably connected to the shaft. The movable frame includes two first connecting bars and several first horizontal bars. Both ends of the several first horizontal bars are fixedly connected to the two first connecting bars respectively. The several first horizontal bars are arranged in parallel and spaced apart along the length of the first connecting bars. Each first horizontal bar is provided with two support plates. Each first horizontal bar is connected and fixed to two second rotating shafts through the two support plates respectively. The first fixed frame includes a second connecting bar and several second horizontal bars. One end of each of the several second horizontal bars is connected and fixed to the second connecting bar, and the other end is connected and fixed to the hopper body. Each first horizontal bar is positioned between two adjacent second horizontal bars to avoid obstruction. The second drive assembly is used to drive the four cam shafts to rotate synchronously.

[0008] Preferably, the device further includes a packaging bag feeding device, which includes a first belt conveyor, a residual material shaking mechanism, a packaging bag compression mechanism, and a strapping machine. The first belt conveyor is located on the side of the hopper away from the cutting device and is connected to the hopper for conveying packaging bags. The residual material shaking mechanism is located at the output end of the first belt conveyor for receiving the packaging bags conveyed by the first belt conveyor and shaking out the remaining granular material in the packaging bags. The packaging bag compression mechanism is connected to the residual material shaking mechanism for receiving the packaging bags output by the residual material shaking mechanism and compressing them. The strapping machine is connected to the packaging bag compression mechanism for receiving the packaging bags output by the packaging bag compression mechanism and strapping the packaging bags together.

[0009] Preferably, the residual material shaking mechanism includes a frame and a rotating drum, the rotating drum being rotatably connected to the frame, a third drive assembly being provided on the frame to drive the frame to rotate, the output end of the first belt conveyor extending into one port of the inner hole of the rotating drum, the packaging bag compression mechanism being connected to the other port of the inner hole of the rotating drum, the rotating drum tilting downwards from the end connected to the first belt conveyor as the starting end, and a plurality of pads being evenly arranged on the inner wall of the rotating drum.

[0010] Preferably, the packaging bag compression mechanism includes a second belt conveyor, a baffle side plate, a bag pushing cylinder, a support frame, and a compression box. The input end of the second belt conveyor is located below the end of the rotating drum away from the first belt conveyor. There are two baffle side plates, located on opposite sides of the input end of the second belt conveyor. The second belt conveyor is inclined upwards from the end closest to the rotating drum. An opening is provided on one side of the compression box, and the output end of the second belt conveyor communicates with the compression box through this opening. The support frame is fixed to the second belt conveyor. At the output end, the bag-pushing cylinder is fixed on the support frame and located above the second belt conveyor, with the telescopic shaft of the bag-pushing cylinder inclined toward the compression box. A compression cylinder is fixed on the top of the compression box, and the compression cylinder is vertically arranged and extends into the compression box. The telescopic shaft of the compression cylinder is downward and a pressure plate is fixed at its end. The cable tie machine is located on one side of the bottom of the compression box and communicates with the compression box. A second fixed frame is provided on the bottom of the compression box away from the cable tie machine. A side-push cylinder is provided on the second fixed frame, with the telescopic shaft of the side-push cylinder facing the cable tie machine and a side-push plate fixed thereon.

[0011] Preferably, the first conveying device includes a first roller conveyor line, a tray, a multi-axis robot, and a clamp. The output end of the first roller conveyor line extends to a position close to the silo body to convey the tray close to the silo body. The tray is used to carry bagged granules. The multi-axis robot is located outside the silo body and is connected to the clamp, driving the clamp to reciprocate between the output end of the first roller conveyor line and the large port of the silo body, and moving the clamp horizontally from the side of the cutting device to the shaking device. The clamp is used to grip and fix the bagged granules and release the gripping and fixing of the bagged granules.

[0012] Preferably, the first conveying device further includes a second roller conveyor line and a pallet lifting mechanism. The second roller conveyor line is located on one side of the output end of the first roller conveyor line. A pushing device is provided on the first roller conveyor line to push the pallet conveyed to the output end of the first roller conveyor line to the second roller conveyor line. The pallet lifting mechanism is provided on the second roller conveyor line to lift the pallet on the second roller conveyor line.

[0013] Preferably, the second conveying device is a screw conveyor.

[0014] This application includes at least one of the following beneficial technical effects:

[0015] 1. The first conveying device transports the bagged granules to the unpacking bin. In the unpacking bin, the packaging bag of the bagged granules is cut open by the cutting device, and the packaging bag is shaken by the shaking device to separate the granules from the packaging bag. The granules fall into the unpacking bin, and then the second conveying device transports the granules in the unpacking bin to the collection trough to move the granules to the corresponding position. The machine replaces manual labor in conveying the granules and separating the packaging bags and granules from the bagged granules, which is highly efficient and helps to save a lot of labor and reduce the company's costs.

[0016] 2. By setting up a packaging bag feeding device to output the packaging bags from the unpacking bin, the manual picking of packaging bags from the unpacking bin is reduced, which further helps to reduce the company's labor costs. The residual material shaking mechanism shakes out the residual material in the packaging bag, which helps to reduce the waste of granular material. The packaging bag compression mechanism compresses the packaging bag and then the packaging bag is tied and packaged by the strapping machine, which reduces the manual packaging operation and further saves the company's labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a pellet destacking production line according to this embodiment.

[0018] Figure 2 This is a schematic diagram of the connection structure of the unpacking compartment, cutting device and shaking device in this embodiment.

[0019] Figure 3 This is a schematic diagram of the packaging bag feeding device in this embodiment.

[0020] Figure 4 This is a schematic diagram of the compression box in this embodiment.

[0021] Figure 5 This is a schematic diagram of the pushing device in this embodiment.

[0022] Reference numerals: 1. First conveying device; 11. First roller conveyor line; 111. Pushing device; 1111. Pushing cylinder; 1112. Pushing frame; 12. Pallet; 13. Multi-axis robot; 14. Fixture; 15. Second roller conveyor line; 16. Pallet lifting mechanism; 161. Gantry frame; 162. Lifting cylinder; 163. Lifting frame; 164. Movable lift; 165. Horizontal cylinder; 166. Plug; 2. Unpacking compartment; 21. Connecting frame; 22. Compartment body; 3. Second conveying device; 4. Material collection trough; 5. Cutting device; 51. First rotating shaft; 52. Cutter; 53. First drive assembly; 6. Shaking device; 61. Camshaft; 611. Cam; 62. Second rotating shaft; 63. Second drive assembly; 64. First 641. Fixed frame; 642. Second connecting bar; 65. Second horizontal bar; 66. Movable frame; 651. First connecting bar; 652. First horizontal bar; 653. Elevating plate; 7. Packaging bag unloading device; 71. First belt conveyor; 72. Excess material shaking mechanism; 721. Frame body; 722. Rotary drum; 7221. Pad block; 723. Third drive assembly; 724. Loading frame; 73. Packaging bag compression mechanism; 731. Second belt conveyor; 732. Material blocking side plate; 733. Bag pushing cylinder; 734. Support frame; 735. Compression box; 7351. Compression cylinder; 7352. Pressure plate; 7353. Second fixed frame; 7354. Side push cylinder; 7355. Side push plate; 74. Cable tie machine; 8. Electrical control cabinet; 9. Vision module. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Reference Figure 1 A pellet depalletizing production line includes a first conveying device 1 for conveying bagged pellets, a depalletizing bin 2 for separating the packaging bags from the pellets, a second conveying device 3 for conveying the pellets, and a collection trough 4 for holding the pellets. The first conveying device 1 is connected to the depalletizing bin 2 to convey the bagged pellets into the depalletizing bin 2. The depalletizing bin 2 is equipped with a cutting device 5 to cut the packaging bags. The depalletizing bin 2 is also equipped with a shaking device 6 to shake the cut packaging bags to separate the pellets from the packaging bags. The pellets fall into the depalletizing bin 2. The second conveying device 3 is connected to the depalletizing bin 2 and the collection trough 4 to convey the pellets in the depalletizing bin 2 to the collection trough 4 for collection.

[0025] Reference Figure 2Furthermore, the unpacking compartment 2 includes a connecting frame 21 and a compartment body 22. The compartment body 22 is funnel-shaped and fixed to the connecting frame 21, with the larger opening of the compartment body 22 facing upwards and the smaller opening facing downwards. The cutting device 5 is fixed to one side of the larger opening end of the compartment body 22. It includes a first rotating shaft 51, a cutter 52, and a first driving assembly 53. The first rotating shaft 51 is rotatably connected to the compartment body 22. The first driving assembly 53 is fixed to the compartment body 22 and connected to the first rotating shaft 51 to drive the first rotating shaft 51 to rotate. The first driving assembly 53 is a motor. The cutter 52 consists of several circular blades, each with a through hole in the center. The first rotating shaft 51 passes through and is fixed to the circular blades. The several circular blades rotate along the first rotating shaft. The components 51 are evenly arranged along their length. The shaking device 6 is located in the middle of the bin body 22. It includes a camshaft 61, a second rotating shaft 62, a second drive assembly 63, a first fixed frame 64, and a movable frame 65. There are at least four camshafts 61. Two camshafts 61 are located on one side of the bin body 22 and are rotatably connected to the bin body 22. The other two camshafts 61 are located on the other side of the bin body 22 and are rotatably connected to the bin body 22. The four camshafts 61 are arranged in parallel and are parallel to the first rotating shaft 51. The two camshafts 61 on one side of the bin body 22 are aligned with the other two camshafts 61. Each camshaft 61 is provided with a cam 611. There are two second rotating shafts 62. Both ends of the second shaft 62 are rotatably connected to cams 611 on two camshafts 61 that are aligned with each other. Both ends of the other second shaft 62 are rotatably connected to cams 611 on two other camshafts 61 that are aligned with each other. The movable frame 65 includes two first connecting bars 651 and several first crossbars 652. Both ends of the several first crossbars 652 are fixedly connected to the two first connecting bars 651. The several first crossbars 652 are arranged in parallel and spaced apart along the length of the first connecting bars 651. Each first crossbar 652 is provided with two support plates 653. Each first crossbar 652 is connected and fixed to two second shafts 62 through the two support plates 653. A fixed frame 64 includes a second connecting bar 641 and several second crossbars 642. One end of each of the several second crossbars 642 is connected and fixed to the second connecting bar 641, and the other end is connected and fixed to the compartment body 22. Each first crossbar 652 is positioned between two adjacent second crossbars 642 to avoid obstruction. A second drive assembly 63 is used to drive four camshafts 61 to rotate synchronously. The second drive assembly 63 includes a linkage shaft, a motor, and a belt. The linkage shaft is parallel to the camshafts 61 and rotatably connected to the compartment body 22. Each camshaft 61 is linked to the linkage shaft via a belt. The motor is fixed to the compartment body 22 and connected to the linkage shaft to drive the linkage shaft to rotate, thereby driving the four camshafts 61 to rotate synchronously.

[0026] Reference Figure 1 and Figure 2The cutting device 5 and the shaking device are both located on the conveying path of the first conveying device 1. When the first conveying device 1 conveys the bagged granules to the cutting device 5, the first rotating shaft 51 drives the cutter 52 to rotate and cut the packaging bag. Then, the bagged granules after the packaging bag is cut are conveyed to the shaking mechanism. Specifically, the bagged granules are placed on the fixed frame 64, and the bagged granules are supported by the fixed frame 64. The two second rotating shafts 62 are connected and fixed to the movable frame 65, so that the second rotating shafts 62 and the movable frame 65 are set as a whole. The second drive assembly 63 drives the four cam shafts 61 to rotate synchronously, and the two second rotating shafts 62 are rotated and connected to the cams 611 set on the cam shafts 61, so that the movable frame 65 moves continuously in an arc trajectory. Each first horizontal bar 652 of the movable frame 65 is between two adjacent second horizontal bars 642 of the fixed frame 64 to avoid each other. The fixed frame 64 supports the bagged granules through several second horizontal bars 642. The gap between the second horizontal bars 642 allows the granular material to flow out from the opening of the packaging bag into the hopper 22. When the movable frame 65 moves in an arc-shaped trajectory, several first horizontal bars 652 move in an arc-shaped trajectory, lifting the bagged granular material and moving it down, allowing the bagged granular material to fall freely back to the fixed frame 64. During the continuous movement of the movable frame 65, the bagged granular material is continuously lifted and falls, shaking the packaging bag and separating it from the granular material. The granular material falls into the hopper 22, and during the process of being lifted, the bagged granular material also moves in the direction of rotation of the camshaft 61. The second conveying device 3 is connected to the small opening of the hopper 22. The granular material falls from the small opening of the hopper 22 into the second conveying device 3 and is conveyed to the material collection trough 4 by the second conveying device 3. The second conveying device 3 is a screw conveyor. The screw conveyor propels the granular material by continuously rotating the screw. The screw conveyor is existing technology and will not be described in detail in this embodiment.

[0027] Reference Figure 1 and Figure 2The first conveying device 1 includes a first roller conveyor line 11, a pallet 12, a multi-axis robot 13, and a clamp 14. The output end of the first roller conveyor line 11 extends to a position close to the silo body 22 to convey the pallet 12 closer to the silo body 22. The pallet 12 is used to hold bagged granular material. The multi-axis robot 13 is located outside the silo body 22 and is connected to the clamp 14, driving the clamp 14 to reciprocate between the output end of the first roller conveyor line 11 and the large port of the silo body 22, and moving the clamp 14 horizontally from the cutting device 5 to the shaking device 6. The clamp 14 is used to grip and secure the bagged granules and to release the gripping and securing of the bagged granules. The pallet 12 is used in conjunction with a forklift and has insertion holes on all four sides. By placing the bagged granules onto the pallet 12, the forklift places the pallet 12 containing the bagged granules onto the first roller conveyor 11. The first roller conveyor 11 transports the pallet 12 to a position close to the hopper 22. The first roller conveyor 11 and the pallet 12 are both existing technologies and will not be described in detail in this embodiment. After the pallet 12 is transported to a position close to the hopper 22... The multi-axis robot 13 drives the gripper 14 to move onto the tray 12. The gripper 14 picks up the bagged granules. After picking up the bagged granules, the multi-axis robot 13 drives the gripper 14 to lift the bagged granules to a position flush with the cutter 52 and move them into the hopper 22 from the side where the cutting device 5 is located. During the movement, the cutter 52 cuts through the packaging bag. When the bagged granules move above the shaking device 6, the gripper 14 releases its grip on the bagged granules, and the bagged granules fall onto the shaking device 6. The shaking device 6 then shakes the packaging bag. The multi-axis robot 13 separates the granules from the packaging bag and allows the granules to fall into the hopper 22. The multi-axis robot 13 includes at least a lifting axis and a horizontal moving axis. The lifting axis raises and lowers the gripper 14, which moves it down onto the tray 12 to grab the bagged granules and moves the bagged granules up to the large opening of the hopper 22. The horizontal moving axis moves the gripper 14 horizontally, moving the bagged granules from the cutting device 5 to the shaking device 6. The multi-axis robot 13 and the gripper 14 are both existing technologies and will not be described in detail in this embodiment.

[0028] Reference Figure 1 and Figure 5Furthermore, the first conveying device 1 also includes a second roller conveyor 15 and a pallet lifting mechanism 16. The second roller conveyor 15 is located on one side of the output end of the first roller conveyor 11. A pushing device 111 is provided on the first roller conveyor 11. The pushing device 111 includes a pushing cylinder 1111 and a pushing frame 1112. The pushing cylinder 1111 is fixed to the bottom of the mounting frame of the first roller conveyor 11, and the telescopic shaft of the pushing cylinder 1111 is parallel to the rollers of the first roller conveyor 11. The pushing frame 1112 is connected and fixed to the telescopic shaft of the pushing cylinder 1111 and passes through the gap between the rollers of the first roller conveyor 11. The top of the first roller conveyor 11 contacts the pallet 12. The pusher 1112 is located on the side of the output end of the first roller conveyor 11 away from the second roller conveyor 15. The pallet 12 is pushed onto the second roller conveyor 15 by retracting the telescopic shaft of the cylinder 1111. The pallet lifting mechanism 16 includes two gantry frames 161, both of which are connected and fixed to the mounting frame of the second roller conveyor 15 and are arranged at intervals in the conveying direction of the second roller conveyor 15. Lifting cylinders 162 are fixed on the crossbeams of the two gantry frames 16, with the telescopic shafts of the lifting cylinders 162 facing downwards. Lifting frames 163 are fixed to the ends of the telescopic shafts of 62. Lifting frames 163 are raised and lowered by lifting cylinders 162. Each lifting frame 163 is equipped with a movable lift 164 and a transverse cylinder 165 connected to and driving the movable lift 164 to reciprocate along the conveying direction of the second roller conveyor line 15. Each movable lift 164 has a plug 166 on one side facing each other, matching the insertion holes on the tray 12. When the second roller conveyor line 15 conveys the tray 12 between the two movable lifts 164, the lifting cylinders 162 drive the lifting frames 163 to descend, aligning the plugs 166 on the movable lifts 164 with the insertion holes on the tray 12. After the plugs 166 on the two movable lifts 164 are aligned with the insertion holes on both sides of the tray 12, the movable lifts 164 are driven by the transverse cylinder 165 to move towards the tray 12 so that the plugs 166 are inserted into the insertion holes. Then, the lifting cylinder 162 drives the lifting frame 163 to rise, so that the plugs on the two movable lifts 164 lift the tray 12 and stack multiple trays 12 that are transported between the two movable lifts 164. This reduces the need for workers to frequently use forklifts to unload and unload the trays 12 from the second roller conveyor line 15, reduces the labor intensity of workers, and helps enterprises reduce labor costs and improve production efficiency.

[0029] Reference Figure 1 and Figure 3Furthermore, a granular material depalletizing production line also includes a packaging bag unloading device 7. The packaging bag unloading device 7 includes a first belt conveyor 71, a residual material shaking mechanism 72, a packaging bag compression mechanism 73, and a strapping machine 74. The first belt conveyor 71 is located on the side of the hopper 22 away from the cutting device 5 and is connected to the hopper 22 for conveying packaging bags. As the bagged granular material is lifted by the movable frame 65, it also moves in the direction of rotation of the camshaft 61. The rotation direction of the camshaft 61 is set to be towards the first belt conveyor 71. After the packaging bag and granules are separated, the packaging bag falls onto the first belt conveyor 71. The residual material shaking mechanism 72 is located at the output end of the first belt conveyor 71 and is used to receive the bag conveyed by the first belt conveyor 71 and shake out the remaining granules in the packaging bag. The packaging bag compression mechanism 73 is connected to the residual material shaking mechanism 72 and is used to receive the packaging bag output by the residual material shaking mechanism 72 and compress it. The strapping machine 74 is connected to the packaging bag compression mechanism 73, receives the packaging bag output by the packaging bag compression mechanism 73, and straps the packaging bag.

[0030] Reference Figure 3 Furthermore, the residual material discharging mechanism 72 includes a frame 721 and a rotating drum 722. The rotating drum 722 is rotatably connected to the frame 721. The rotating drum 722 is inclined downwards from the end connected to the first belt conveyor. A third drive assembly 723 is provided on the frame 721. The third drive assembly 723 includes a motor and rollers. The rollers are rotatably connected to the frame 721 and abut against the outer wall of the rotating drum 722. The motor is fixed to the frame 721 and connected to the rollers to drive the rollers to rotate. The rotation of the rollers drives the rotating drum 722 to rotate through friction with the outer wall of the rotating drum 722. The output end of the first belt conveyor 71 extends into one end of the inner hole of the rotating drum 722 to transport the packaging bag into the inner hole of the rotating drum 722. Several pads are evenly arranged on the inner wall of the rotating drum 722. When the packaging bag falls into the inner hole of the rotating drum 722, it is supported by the pad block 7221. The pad block 7221 supports the opening of the packaging bag so that it is not blocked by the inner wall of the rotating drum 722, allowing the remaining powder in the packaging bag to flow out from the opening into the rotating drum 722. The rotating drum 722 rotates to make the packaging bag flip in the inner hole, thereby shaking the remaining powder out of the packaging bag. The rotating drum 722 is tilted so that the packaging bag slides into the packaging bag compression mechanism 73. The remaining material shaking mechanism 72 also includes two loading frames 724 with openings at the top. The two loading frames 724 are located below the two ends of the inner hole of the rotating drum 722 to hold the granular material falling from the first belt conveyor 71 and the rotating drum 722 to avoid waste of granular material.

[0031] Reference Figure 3 and Figure 4Furthermore, the packaging bag compression mechanism 73 includes a second belt conveyor 731, a baffle side plate 732, a bag pushing cylinder 733, a support frame 734, and a compression box 735. The input end of the second belt conveyor 731 is located below the end of the rotating drum 722 away from the first belt conveyor 71. There are two baffle side plates 732, which are located on opposite sides of the input end of the second belt conveyor 731. The second belt conveyor 731 is inclined upwards from the end closest to the rotating drum 722. The packaging bag slides from the rotating drum 722 to the second belt conveyor 735. On the belt conveyor 731, two baffle side plates 732 prevent the packaging bag from falling out of the second belt conveyor 731. An opening is provided on one side of the compression box 735, through which the output end of the second belt conveyor 731 connects to the compression box 735. A support frame 734 is fixed to the output end of the second belt conveyor 731. A bag-pushing cylinder 733 is fixed to the support frame 734 and positioned above the second belt conveyor 731, with its extension shaft tilted towards the compression box 735. When the second belt conveyor 731 conveys the packaging bag to the output end, it... The telescopic shaft of the bag-pushing cylinder 733 extends to push the packaging bag to the bottom of the compression box 735. A compression cylinder 7351 is fixed to the top of the compression box 735. The telescopic shaft of the compression cylinder 7351 points downwards, and a pressure plate 7352 is fixed to its end. When multiple packaging bags accumulate inside the compression box 735, the pressure plate 7352 is driven to move downwards by the compression cylinder 7351 to compress the multiple packaging bags, expelling air and ensuring a tight seal for easy packaging. A cable tie machine 74 is located on one side of the bottom of the compression box 735 and is connected to the compression box 735. A second fixing frame 7351 is provided on the side of the bottom away from the cable tie machine 74. A side push cylinder 7354 is provided on the second fixing frame 7351. The telescopic shaft of the side push cylinder 7354 faces the cable tie machine 74 and a side push plate 7355 is fixed on it. The side push cylinder 7354 drives the side push plate 7355 to move towards the cable tie machine 74, thereby pushing the compressed packaging bag into the cable tie machine 74 for output. The cable tie machine 74 ties and packages the packaging bag, thereby reducing the need for manual packaging and saving manpower. The cable tie machine 74 is existing technology and will not be described in detail in this embodiment.

[0032] Reference Figure 1A pellet depalletizing production line is also equipped with an electrical control cabinet 8 and a vision module 9. The electrical control cabinet 8 is equipped with a control system. The first drive assembly 53, the second drive assembly 63, the screw conveyor, the first roller conveyor 11, the multi-axis robot 13, the clamp 14, the first belt conveyor 71, the third drive assembly 723, the second belt conveyor 731, the bag pushing cylinder 733, the compression cylinder 7351, the side pushing cylinder 7354, and the strapping machine 74 are all controlled by the control system through the program. This enables intelligent control during the conveying of bagged pellets, the separation of packaging bags from pellets, and the unloading of packaging bags. The process is highly automated and the coordination is smooth. By placing the vision module 9 above the output end of the first belt conveyor 71 to view the position of the packaging bags in the tray 12, the vision module 9 interacts with the control system and the multi-axis robot 13, which helps the multi-axis robot 13 drive the clamp 14 to accurately grasp the bagged pellets conveyed by the first conveying device 1.

[0033] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A destacking production line for granular materials, characterized in that: The device includes a first conveying device, an unpacking bin, a second conveying device, and a material collection trough. The first conveying device is connected to the unpacking bin and is used to convey bagged granular material into the unpacking bin. The unpacking bin is equipped with a cutting device for cutting open the packaging bags, and a shaking device is also provided in the unpacking bin to shake the cut packaging bags to separate the granular material from the packaging bags. The second conveying device is connected to the unpacking bin and the material collection trough and conveys the granular material in the unpacking bin into the material collection trough. The unpacking bin includes a connecting frame and a bin body. The cutting device includes a first rotating shaft, a cutter, and a first driving assembly. The material shaking device includes a camshaft, a second rotating shaft, a second drive assembly, a first fixed frame, and a movable frame. The number of camshafts is at least four. Two camshafts are located on one side of the bin and rotatably connected to the bin, while the other two camshafts are located on the other side of the bin and rotatably connected to it. All four camshafts are arranged in parallel and parallel to the first rotating shaft, with the two camshafts on one side of the bin aligned with the other two camshafts. Each camshaft has a cam. The number of second rotating shafts is two. Both ends of one second rotating shaft are rotatably connected to the cams on the two aligned camshafts, and both ends of the other second rotating shaft are rotatably connected to the cams on the other two aligned camshafts. The movable frame includes two first connecting bars and several first horizontal bars. Both ends of the several first horizontal bars are fixedly connected to the two first connecting bars respectively. The several first horizontal bars are arranged in parallel and spaced apart along the length of the first connecting bars. Each first horizontal bar is provided with two support plates. Each first horizontal bar is fixedly connected to two second rotating shafts through the two support plates respectively. The first fixed frame includes a second connecting bar and several second horizontal bars. One end of each of the several second horizontal bars is fixedly connected to the second connecting bar, and the other end is fixedly connected to the compartment body. Each first horizontal bar is positioned between two adjacent second horizontal bars to avoid obstruction. The second drive assembly is used to drive the four camshafts to rotate synchronously. It also includes a packaging bag feeding device, which includes a first belt conveyor, a residual material shaking mechanism, a packaging bag compression mechanism, and a strapping machine. The first belt conveyor is located on the side of the hopper away from the cutting device and is connected to the hopper for conveying packaging bags. The residual material shaking mechanism is located at the output end of the first belt conveyor for receiving the packaging bags conveyed by the first belt conveyor and shaking out the remaining granular material in the packaging bags. The packaging bag compression mechanism is connected to the residual material shaking mechanism for receiving the packaging bags output by the residual material shaking mechanism and compressing them. The strapping machine is connected to the packaging bag compression mechanism for receiving the packaging bags output by the packaging bag compression mechanism and strapping the packaging bags. The camshaft is set to rotate in the direction of the first belt conveyor so that the packaging bags and granular material are separated and the packaging bags fall onto the first belt conveyor. The residual material dissipation mechanism includes a frame and a rotating drum. The rotating drum is rotatably connected to the frame. A third drive assembly is provided on the frame to drive the frame to rotate. The output end of the first belt conveyor extends into one port of the inner hole of the rotating drum. The packaging bag compression mechanism is connected to the other port of the inner hole of the rotating drum. The rotating drum tilts downward from the end connected to the first belt conveyor as the starting end. Several pads are evenly arranged on the inner wall of the rotating drum. The residual material dissipation mechanism also includes two loading frames with open tops. The two loading frames are respectively located below the two ports of the inner hole of the rotating drum.

2. The pellet destacking production line according to claim 1, characterized in that: The silo is funnel-shaped and fixed to the connecting frame, with the large opening facing upwards and the small opening facing downwards. The first conveying device is connected to the silo. The cutting device is fixed to one side of the large opening end of the silo and is located on the conveying path of the first conveying device. The shaking device is located in the middle of the silo and is located on the conveying path of the first conveying device. The second conveying device is connected to the small opening end of the silo.

3. The pellet destacking production line according to claim 2, characterized in that: The first rotating shaft is rotatably connected to the chamber body, the first driving component is fixed on the chamber body and connected to the first rotating shaft to drive the first rotating shaft to rotate, and there are several cutters, all of which are fixedly connected to the first rotating shaft, and the cutters are evenly arranged along the length direction of the first rotating shaft.

4. The pellet destacking production line according to claim 1, characterized in that: The packaging bag compression mechanism includes a second belt conveyor, a baffle side plate, a bag pushing cylinder, a support frame, and a compression box. The input end of the second belt conveyor is located below the end of the rotating drum away from the first belt conveyor. There are two baffle side plates, positioned on opposite sides of the input end of the second belt conveyor. The second belt conveyor is inclined upwards from the end closest to the rotating drum. An opening is provided on one side of the compression box, and the output end of the second belt conveyor communicates with the compression box through this opening. The support frame is fixed to the output end of the second belt conveyor. At one end, the bag-pushing cylinder is fixed on the support frame and located above the second belt conveyor, with the telescopic shaft of the bag-pushing cylinder inclined toward the compression box. A compression cylinder is fixed on the top of the compression box, and the compression cylinder is vertically arranged and extends into the compression box. The telescopic shaft of the compression cylinder is downward and a pressure plate is fixed at its end. The cable tie machine is located on one side of the bottom of the compression box and communicates with the compression box. A second fixed frame is provided on the bottom of the compression box away from the cable tie machine. A side-push cylinder is provided on the second fixed frame, with the telescopic shaft of the side-push cylinder facing the cable tie machine and a side-push plate fixed thereon.

5. A pellet destacking production line according to claim 2, characterized in that: The first conveying device includes a first roller conveyor line, a tray, a multi-axis robot, and a clamp. The output end of the first roller conveyor line extends to a position close to the silo body to convey the tray to the silo body. The tray is used to carry bagged granular material. The multi-axis robot is located outside the silo body and is connected to the clamp, driving the clamp to reciprocate between the output end of the first roller conveyor line and the large port of the silo body, and moving the clamp horizontally from the cutting device side to the shaking device. The clamp is used to grip and fix the bagged granular material and release the gripping and fixing of the bagged granular material.

6. The pellet destacking production line according to claim 5, characterized in that: The first conveying device further includes a second roller conveyor line and a pallet lifting mechanism. The second roller conveyor line is located on one side of the output end of the first roller conveyor line. A pushing device is provided on the first roller conveyor line to push the pallet conveyed to the output end of the first roller conveyor line to the second roller conveyor line. The pallet lifting mechanism is provided on the second roller conveyor line to lift the pallet on the second roller conveyor line.

7. The pellet destacking production line according to claim 1, characterized in that: The second conveying device is a screw conveyor.

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