Automatic filling production system and method for boxing sandbags

Abstract

The invention relates to the field of boxing sandbag production, and discloses a boxing sandbag automatic filling production system and method.The boxing sandbag automatic filling production system comprises a base, a transmission belt is arranged at the top of the base, a plurality of electric cylinders are arranged at the top of the transmission belt at equal intervals, trapezoidal tables are fixed to the telescopic ends of the electric cylinders, and arc-shaped grooves used for containing sandbags are formed in the tops of the trapezoidal tables; vertical plates are fixed at the tops of the trapezoidal tables; the openable and closable clamping plates and the lifting assembly for driving the clamping plates to ascend and descend are arranged on one side of the vertical plate, when the clamping plates are attached to the surface of a sandbag, the sandbag can be fixed and limited, during filling, opening and closing of the clamping plates beat the surface of the sandbag, high-frequency beating is adopted in the early stage of filling, and a firm bottom foundation is rapidly formed; along with the increase of the filling height, the beating frequency is gradually reduced so as to avoid excessive compression and reduce disturbance to the primarily-compacted part, so that the filling efficiency and quality are improved, and the beating feedback consistency and durability of the sandbag are improved.

Description

Technical Field

[0001] The present invention relates to the field of boxing sandbag production, and in particular to an automatic boxing sandbag filling production system and method. Background Art

[0002] With the popularity of boxing, the demand for boxing sandbags, as an important training device, continues to grow. However, the traditional sandbag filling process relies mainly on manual operation. During the manual filling process, the operator needs to manually pour the filler into the sandbag liner and then pat or compress it to ensure the filler is evenly distributed. This process is time-consuming and difficult to ensure quality consistency. In addition, the fixing of the sandbag mouth, positioning of the liner, and the coordination of filling and compaction all require manual intervention, which limits production efficiency.

[0003] In order to improve the quality and efficiency of filling, the existing technology generally adopts robot downward pressure or mechanical pressing plate to automatically compact the filler. However, the existing filling method often relies on gravity free fall, resulting in irregular accumulation of filler in the sandbag with a high gap rate. Even through multi-stage downward pressure, only the surface can be flattened, and there will still be a large number of gaps between the fillers, which in turn affects the consistency of the striking feedback and the durability of the sandbag. In order to solve the above problems, an automatic filling production system and method for boxing sandbags are proposed.

[0004] The above information disclosed in this background technology is only for enhancing understanding of the background technology of the present invention and therefore it may contain information that does not constitute the prior art that is already known to a person of ordinary skill in the art. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a boxing sandbag automatic filling production system and method.

[0006] The present invention provides a boxing sandbag automatic filling production system and method using the following technical solutions:

[0007] A boxing sandbag automatic filling production system includes a base, a transmission belt is provided on the top of the base, a plurality of electric cylinders are equidistantly provided on the top of the transmission belt, a trapezoidal platform is fixed to the telescopic ends of the plurality of electric cylinders, an arc-shaped groove for placing sandbags is provided on the top of the trapezoidal platform, a vertical plate is fixed on the top of the trapezoidal platform, splints that can be opened and closed synchronously and a lifting assembly for driving the two splints to rise and fall are provided on both sides of the vertical plate, a support seat is provided on the top of the base, a loading assembly for loading the inner liner of the sandbag, a filling assembly for automatically filling the sandbag and a compacting assembly are sequentially provided on the top of the support seat, the filling assembly and the compacting assembly are alternately located above the bag mouth of the sandbag, a bag-supporting assembly is also provided at the bottom of the support seat corresponding to the loading assembly, and a fastening assembly is also provided at the bottom of the support seat corresponding to the filling assembly.

[0008] Preferably, a lifting block is slidingly provided on one side of the vertical plate, and hinge shafts are fixed on both sides of the lifting block, and the two hinge shafts are hinged to the two clamping plates respectively, and the ends of the two clamping plates away from the vertical plate are fixed with connecting shafts, and the two connecting shafts are hinged with connecting rods, and the other ends of the two connecting rods are hinged with connecting columns, and the bottom ends of the two connecting columns are fixed with rotating disks, and a mounting frame is fixed on one side of the lifting block, and two mutually meshing gears are rotatably provided on the top of the mounting frame, and the bottoms of the two rotating disks are respectively fixed to the tops of the two gears, and a motor 2 is fixed on the top of the mounting frame, and the rotor end of the motor 2 is fixed to one of the gears 1.

[0009] Preferably, the lifting assembly includes a screw rod and a motor. A sliding groove for the screw rod to rotate is provided on one side of the vertical plate. A slider is fixed to the side of the lifting block close to the vertical plate. The slider slides in the sliding groove. The slider is threadedly connected to the screw rod. An installation groove for installing the power supply motor is provided on the top of the trapezoidal platform. The rotor end of the motor passes through the bottom of the vertical plate and is fixed to the bottom end of the screw rod.

[0010] Preferably, the feeding assembly includes a feeding rack, a guide plate, a fixed plate, an electric push rod, an arc-shaped push plate, a rolling groove, and a guide roller. The feeding rack is fixed on the top of the support seat, the guide plate is fixed on one side of the feeding rack, and multiple rolling grooves are provided on both sides of the inner wall of the feeding rack. Guide rollers are rotatably provided in the multiple rolling grooves, and the guide rollers are attached to the surface of the sandbag inner liner. The fixed plate is fixed on one side of the feeding rack, the electric push rod is fixed on one side of the fixed plate, the telescopic end of the electric push rod is fixed to the arc-shaped push plate, and a drop opening for the sandbag inner liner to fall is provided on the top of the support seat.

[0011] Preferably, the filling assembly includes a metering bin, a connecting pipe, an auger conveyor, a bent pipe, and a discharge cover. A support bracket is fixed on the top of the support seat, the metering bin is fixed on the support bracket, the top of the connecting pipe is fixedly connected to the bottom of the metering bin, the bottom of the connecting pipe is fixedly connected to the connecting pipe, the bent pipe is fixed to the end of the auger conveyor away from the connecting pipe, the discharge cover is fixed to the end of the bent pipe away from the auger conveyor, a blanking port is opened on the top of the support seat, and the discharge cover corresponds to the blanking port.

[0012] Preferably, the compacting assembly includes a cylinder 1 and a pressure plate. A support frame is fixed on the top of the support seat. A sliding frame and a sliding assembly for driving the sliding frame to slide and lift are provided on the support frame. A through hole for the cylinder 1 to pass through is opened on the top of the support frame. The cylinder 1 is fixed on the sliding frame. The telescopic end of the cylinder 1 is fixed to the pressure plate. When the sliding assembly drives the sliding frame and the cylinder 1 to descend and approach the blanking port, the bent pipe and the discharge cover are away from the blanking port.

[0013] Preferably, the support frame is provided with a rotating groove for the rotation of the screw rod three, and the sliding frame slides in the rotating groove, the motor four is fixed on the top of the support frame, the rotor end of the motor four is fixed to the screw rod three, the bottom end of the screw rod three is fixed with a bevel gear one, the connecting frame is fixed on the top of the support seat, a support plate is fixed on one side of the support frame, a screw rod four is rotatably provided between the support plate and the connecting frame, a bevel gear two is rotatably provided on the side of the support plate away from the screw rod four, the bevel gear two is fixed to the screw rod four, the bevel gear two is meshed with the bevel gear one, a guide rod is fixed between the connecting frame and the support frame, a fixing ring is fixed on the surface of the auger conveyor, connecting rods are fixed on both sides of the fixing ring, the connecting rod is threadedly connected to the screw rod three, and the connecting rod can slide on the surface of the guide rod.

[0014] Preferably, the bag-supporting assembly includes a slide rail, a second screw rod, a sprocket, a chain, a fixing frame, a third motor, a sliding block, and a hook. The slide rails are provided with two and are fixed to the bottom of the support seat. The second screw rod rotates in the slide rail, and the sliding block slides in the slide rail. The sliding block is threadedly connected to the second screw rod, and the bottom of the sliding block is fixed to the hook. The sprockets rotate on one side of the two slide rails and are fixed to the two second screw rods respectively. The chain engages with the two sprockets at the same time. The fixing frame is fixed to one side of the slide rails, the third motor is fixed to one side of the fixing frame, and the rotor end of the third motor is fixed to one of the sprockets. A hanging strap is fixed to the surface of the sandbag, and the hanging strap is hung on the hook. The sandbag is located between the two slide rails.

[0015] Preferably, the fastening assembly includes a rotating ring, a guide block, an outer gear ring, a rack, a second cylinder, an inner ring, and a clamping rod. The rotating ring rotates at the bottom of the support seat, the inner ring is fixed inside the rotating ring and is integrally formed with the rotating ring, and multiple clamping rods are circumferentially provided, and one end of multiple clamping rods is hinged to the bottom of the support seat, and multiple guide grooves for the guide block to rotate are opened circumferentially on the surface of the rotating ring, and the other ends of multiple clamping rods pass through the guide block and slide in the guide block, the outer gear ring is fixed on the surface of the rotating ring, the rack slides at the bottom of the support seat, the rack is meshed with the outer gear ring, the second cylinder is fixed at the bottom of the support seat, and the telescopic end of the second cylinder is fixed to the rack.

[0016] A method for automatically filling a boxing sandbag, applicable to any of the above-mentioned automatic boxing sandbag filling production systems, comprises the following steps: S1, initializing a workstation by starting a transmission belt to move an electric cylinder and its bottom trapezoidal platform and vertical plate to between initial ends of hooks;

[0017] S2. Sandbag loading and hanging: Manually place the sandbag between the two clamping plates and hang the hanging belt on the surface on the hook. Synchronously start Motor 3 and the transmission belt. Motor 3 drives one of the sprockets to rotate. Under the transmission action of the chain, the other sprocket rotates synchronously, which in turn drives the two screw rods 2 to rotate. Under the guidance of the slide rail, the sliding block and the hook at the bottom of the hanging belt move to the bottom of the drop opening. The rotation of the transmission belt drives the upper electric cylinder, the trapezoidal platform, the vertical plate and the hook to move synchronously to the bottom of the drop opening. At this time, the sandbag can be placed on the top of the trapezoidal platform.

[0018] S3, the inner liner is automatically loaded, the electric push rod is started to push the arc push plate, and under the guidance of the guide roller, the sandbag inner liner in the loading rack enters the sandbag from the drop port;

[0019] S4, the splints are opened and closed and the sandbags are lifted. Motor 2 is started to rotate one gear and the other gear, which in turn rotates the connecting column on the top of the two gears. Under the connection of the rotating disk, the two splints are opened and closed synchronously along the axes of the two hinge shafts. When the two splints are in contact with the surface of the sandbag, motor 2 is turned off. The electric cylinder is started to push the trapezoidal platform and the sandbag on top to rise until the hanging belt is released from the hook and then reset. The transmission belt is started to drive the electric cylinder and the trapezoidal platform on top, the sandbag and the sandbag liner inside to move to the bottom of the blanking port.

[0020] S5, the bag opening is fixed and the clamping plate is reset, and the electric cylinder is started again to push the sandbag and the sandbag liner up until they are in contact with the top of the inner wall of the rotating ring. At this time, the sandbag liner is sleeved on the outside of the inner ring, and the second cylinder is started to push the rack to slide, thereby driving the outer gear ring and the rotating ring to rotate. Under the guidance of the guide block, the clamping rod is moved away from the end hinged to the support seat and swung toward the inside of the rotating ring to tighten and fix the bag opening of the sandbag. At this time, the second motor is started as in S4 to drive the two clamping plates away from the surface of the sandbag;

[0021] S6, layered filling and dynamic beating, start motor 1 to rotate screw 1, and under the guidance of the chute, the lifting block and the two clamping plates on it are lowered to the lower position of the sandbag surface, and the auger conveyor is started to pass the filler weighed in the metering bin through the elbow and the discharge cover and the drop port into the sandbag. While the filler falls, start motor 2 as in S4 to make the two clamping plates continue to open and close to beat the sandbag surface until the drop is completed;

[0022] S7, filling and compaction coordination, start motor 4 to rotate screw rod 3, under the guidance of the rotating groove, the sliding frame drives the upper cylinder 1 and the pressure plate to descend close to the blanking port, while motor 4 rotates, bevel gear 1 synchronously drives bevel gear 2 and screw rod 4 to rotate, under the guidance of the guide rod, the connecting rod and the fixed ring drive the auger conveyor and its upper curved pipe and discharge cover away from the blanking port while the cylinder 1 and the pressure plate descend, start cylinder 1 to push the pressure plate downward to perform preliminary compaction of the filling material initially filled in the sandbag, after preliminary compaction, start motor 4 to reverse the rotation so that the auger conveyor and its upper curved pipe and discharge cover, cylinder 1 and the pressure plate are alternately opposite to the blanking port;

[0023] S8, repeat filling and compacting, adjusting the positions of the two clamps to the middle and upper positions of the sandbag surface in sequence using the method in S6, and repeating the subsequent steps in S6 and S7 in sequence to further compact the new filling in the sandbag until it is full;

[0024] S9: After the filling is completed and the sandbag is removed, the steps in S5 are reversed to release the clamping rod from fixing the sandbag. The electric cylinder retracts and resets. The transmission belt is started again to move the electric cylinder and the sandbag filled with fillers on its top away from the blanking port. At this time, the two clamping plates are located at the high point of the sandbag surface, and one automatic filling is completed.

[0025] Among them, the two splints continue to open and close when the filling falls, and the frequency of beating the surface of the sandbag increases from top to bottom.

[0026] In summary, compared with the related art, the present invention has the following beneficial technical effects:

[0027] 1. By providing an openable and closable splint on one side of the vertical plate and a lifting assembly that drives the splint to rise and fall, the splint can play a role in fixing and limiting the sandbag when it is in contact with the surface of the sandbag. In conjunction with the vertical plate and the trapezoidal platform, the stability of the sandbag can be maintained during filling. At the same time, with the cooperation of the fastening assembly, during filling, the splint opens and closes to hit the surface of the sandbag, and the hitting frequency increases from top to bottom. In the early stage of filling, high-frequency hitting is used to quickly form a relatively solid bottom foundation. As the filling height increases, the hitting frequency is gradually reduced to avoid excessive compression and reduce disturbance to the initial compaction part, thereby improving filling efficiency and quality, and further improving the consistency of the hitting feedback and durability of the sandbag;

[0028] 2. A trapezoidal platform for placing sandbags, combined with vertical plates and clamping plates, ensures the stability of the sandbags during lifting and filling. At the same time, the arc-shaped grooves on the top of the platform provide additional support points and surface area for the bottom of the sandbags, ensuring that the bottom of the sandbags maintains the correct shape at the beginning of filling. This effectively reduces the possibility of displacement or tilting of the sandbags during filling, thereby further increasing the stability of the sandbags during filling.

[0029] 3. By setting the trapezoidal platform with a large bottom and a small top, the center of gravity of the platform is lowered, thereby effectively reducing the risk of sandbags tipping over during the filling process. At the same time, the larger bottom area of the trapezoidal platform provides a larger contact area for the sandbags. When the weight of the sandbags increases, the vertical pressure transmitted by the sandbags can be evenly distributed over the entire bottom surface of the trapezoidal platform, rather than concentrated in a single point or a small area. This can effectively reduce the impact of excessive local force on the filling process.

[0030] 4. Through the cooperation of the trapezoidal platform and its arc-shaped groove and splint on the top, when the filler falls freely from a certain height into the sandbag, the trapezoidal platform and its arc-shaped groove and splint provide stable support for the bottom of the sandbag. The side walls of the arc-shaped groove can guide the falling filler to the center area of the sandbag, thereby dispersing the impact force of the filler when falling to a larger area, which can effectively reduce the situation of excessive stress in local areas, thereby reducing the impact force on the bottom of the sandbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of an automatic filling production system for boxing sandbags;

[0032] Figure 2 The present invention is a schematic structural diagram of a feeding component of an embodiment of an automatic filling production system for boxing sandbags;

[0033] Figure 3 This is a schematic diagram of the structure of the bag support assembly of an embodiment of an automatic filling production system for boxing sandbags;

[0034] Figure 4 This is a schematic diagram of the lifting component structure of an embodiment of an automatic filling production system for boxing sandbags Figure 1 ;

[0035] Figure 5 yes Figure 4 A in the middle is an enlarged structural diagram;

[0036] Figure 6 This is a schematic diagram of the lifting component structure of an embodiment of an automatic filling production system for boxing sandbags Figure 2 ;

[0037] Figure 7 The present invention is a schematic diagram of the unfolded structure of the trapezoidal platform and vertical plates of an embodiment of an automatic filling production system for boxing sandbags;

[0038] Figure 8 It is a schematic diagram of the fastening assembly structure of an embodiment of an automatic filling production system for boxing sandbags;

[0039] Figure 9 This is a schematic diagram of the filling component structure of an embodiment of an automatic filling production system for boxing sandbags Figure 1 ;

[0040] Figure 10 This is a schematic diagram of the filling component structure of an embodiment of an automatic filling production system for boxing sandbags Figure 2 ;

[0041] Figure 11 It is a partial side cross-sectional structural diagram of an embodiment of an automatic boxing sandbag filling production system;

[0042] Figure 12 The present invention is a flowchart of a method for automatically filling a boxing sandbag.

[0043] Explanation of the reference numerals: 1. base; 2. transmission belt; 3. electric cylinder; 4. trapezoidal table; 5. vertical plate; 6. slide; 7. screw rod 1; 8. motor 1; 9. mounting groove; 10. arc groove; 11. lifting block; 12. hinge shaft; 13. clamping plate; 14. connecting shaft; 15. connecting rod; 16. connecting column; 17. rotating disk; 18. gear 1; 19. mounting frame; 20. motor 2; 21. support base; 22. loading frame; 23. guide plate; 24. fixed plate; 25. electric push rod; 26. arc push plate; 27. rolling groove; 28. guide roller; 29. sandbag liner; 30. slide rail; 31. screw rod 2; 32. sprocket; 33. chain; 34. fixed Frame; 35. Motor three; 36. Sliding block; 37. Hook; 38. Sandbag; 39. Hanging belt; 40. Support frame; 41. Measuring bin; 42. Connecting pipe; 43. Auger conveyor; 44. Bend pipe; 45. Discharge cover; 46. Support frame; 47. Cylinder one; 48. Press plate; 49. Rotating groove; 50. Screw rod three; 51. Motor four; 52. Bevel gear one; 53. Bevel gear two; 54. Support plate; 55. Connecting frame; 56. Screw rod four; 57. Guide rod; 58. Fixed ring; 59. Connecting rod; 60. Rotating ring; 61. Guide groove; 62. Guide block; 63. Outer gear ring; 64. Rack; 65. Cylinder two; 66. Inner ring; 67. Clamping rod. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-12 The present invention is described in further detail.

[0045] The embodiment of the present invention discloses a boxing sandbag automatic filling production system and method. Figure 1-11A boxing sandbag automatic filling production system includes a base 1 for providing stable support, a transmission belt 2 is provided on the top of the base 1 for realizing the switching of filling stations, a plurality of electric cylinders 3 are equidistantly provided on the top of the transmission belt 2, and a trapezoidal platform 4 is fixed to the telescopic ends of the plurality of electric cylinders 3. The top of the trapezoidal platform 4 can be used to place a sandbag 38. The trapezoidal platform 4 has a structure with a large bottom surface and a small top surface, which is conducive to lowering the center of gravity and improving the anti-overturning moment, thereby ensuring the stability of the sandbag 38 during lifting and filling. In order to disperse the vertical pressure and make the stress distribution more uniform, the bottom of the existing sandbag 38 is often set to an arc shape. In order to adapt to the arc shape of the bottom of the sandbag 38, an arc groove 10 for placing the sandbag 38 is opened on the top of the trapezoidal platform 4, thereby ensuring that the sandbag remains stable in the initial filling stage;

[0046] Reference Figure 1 、 4 , 5, 6, 7, a vertical plate 5 is fixed on the top of the trapezoidal platform 4, and a plywood 13 is provided on both sides of the vertical plate 5. A lifting block 11 is slidingly provided on one side of the vertical plate 5. A hinge shaft 12 is fixed on both sides of the lifting block 11. The two hinge shafts 12 are hinged to the two plywood 13 respectively. A connecting shaft 14 is fixed to one end of the two plywood 13 away from the vertical plate 5. A connecting rod 15 is hinged on the two connecting shafts 14. The other ends of the two connecting rods 15 are hinged to a connecting column 16. A rotating disk 17 is fixed to the bottom end of the two connecting columns 16. A mounting plate 17 is fixed on one side of the lifting block 11. The mounting frame 19 is provided with two mutually meshing gears 18 for rotation at the top of the mounting frame 19. The bottoms of the two rotating disks 17 are respectively fixed to the tops of the two gears 18. A motor 20 is fixed to the top of the mounting frame 19. The rotor end of the motor 20 is fixed to one of the gears 18. Starting the motor 20 causes one gear 18 to drive the other gear 18 to rotate, thereby rotating the connecting column 16 at the top of the two gears 18. Under the connecting action of the rotating disk 17, the two splints 13 are synchronously opened and closed along the axes of the two hinge shafts 12.

[0047] Reference Figure 1 、 4 , 5, 6, 7,, A lifting assembly for driving the two splints 13 to rise and fall is provided on one side of the vertical plate 5, and the lifting assembly includes a screw rod 7 and a motor 8. A slide groove 6 for the screw rod 7 to rotate is provided on one side of the vertical plate 5. A slider is fixed to the side of the lifting block 11 close to the vertical plate 5. The slider slides in the slide groove 6, and the slider is threadedly connected to the screw rod 7. A mounting groove 9 for installing the power supply 8 is provided on the top of the trapezoidal platform 4. The rotor end of the motor 8 passes through the bottom of the vertical plate 5 and is fixed to the bottom end of the screw rod 7. Starting the motor 8 makes the screw rod 7 rotate, and under the guidance of the slide groove 6, the lifting block 11 and the two splints 13 thereon are lifted and lowered along the length direction of the vertical plate 5.

[0048] Reference Figure 1-11A support seat 21 is provided on the top of the base 1. A loading assembly for loading the sandbag liner 29, a filling assembly for automatically filling the sandbag 38, and a compacting assembly are sequentially provided on the top of the support seat 21. The filling assembly and the compacting assembly are alternately located above the bag opening of the sandbag 38.

[0049] The feeding assembly includes a feeding frame 22, a guide plate 23, a fixed plate 24, an electric push rod 25, an arc-shaped push plate 26, a rolling groove 27, and a guide roller 28. The feeding frame 22 is fixed to the top of the support seat 21, and the guide plate 23 is fixed to one side of the feeding frame 22. A plurality of rolling grooves 27 are provided on both sides of the inner wall of the feeding frame 22. A guide roller 28 is provided in each of the plurality of rolling grooves 27. The guide roller 28 is attached to the surface of the sandbag liner 29, and the fixed plate 24 is fixed to the inner wall of the sandbag 29. Fixed on one side of the loading rack 22, the electric push rod 25 is fixed on one side of the fixed plate 24, the telescopic end of the electric push rod 25 is fixed to the arc-shaped push plate 26, and a drop opening is opened on the top of the support seat 21 for the sandbag liner 29 to fall. The sandbag liner 29 enters the loading rack 22 from the inside of the guide plate 23. The electric push rod 25 is started to push the arc-shaped push plate 26. Under the guidance of the guide roller 28, the sandbag liner 29 moves to the drop opening in sequence and falls into the sandbag 38;

[0050] It should be noted that the diameter of the drop opening is larger than the outer diameter of the sandbag liner 29, and the inner diameter of the sandbag 38 is slightly larger than the outer diameter of the sandbag liner 29, so that the sandbag liner 29 can fall smoothly into the sandbag 38;

[0051] The filling assembly includes a metering bin 41, a connecting pipe 42, an auger conveyor 43, a curved pipe 44, and a discharge cover 45. A support bracket 40 is fixed on the top of the support base 21. The metering bin 41 is fixed on the support bracket 40. The top of the connecting pipe 42 is fixedly connected to the bottom of the metering bin 41, and the bottom of the connecting pipe 42 is fixedly connected to the connecting pipe 42. The middle section of the connecting pipe 42 is flexible. The curved pipe 44 is fixed to the end of the auger conveyor 43 away from the connecting pipe 42. The discharge cover 45 is fixed to the end of the curved pipe 44 away from the auger conveyor 43. A blanking port is provided on the top of the support base 21, and the discharge cover 45 corresponds to the blanking port. When the auger conveyor 43 is started, the filler weighed in the metering bin 41 passes through the curved pipe 44 and the discharge cover 45 through the blanking port and into the sandbag 38, thereby realizing automatic filling.

[0052] The compaction assembly includes a cylinder 47 and a pressure plate 48. A support frame 46 is fixed on the top of the support seat 21. A sliding frame and a sliding assembly for driving the sliding frame to slide and rise and fall are provided on the support frame 46. A through hole for the cylinder 47 to pass through is opened on the top of the support frame 46. The cylinder 47 is fixed on the sliding frame. The telescopic end of the cylinder 47 is fixed to the pressure plate 48. When the sliding assembly drives the sliding frame and the cylinder 47 to descend and approach the blanking port, the bend pipe 44 and the discharge cover 45 move away from the blanking port, and the cylinder 47 is started to push the pressure plate 48 downward to compact the filling in the sandbag 38.

[0053] Reference Figure 9-11 , a rotating groove 49 for the rotation of the screw rod 3 50 is opened on the support frame 46, and the sliding frame slides in the rotating groove 49. A motor 4 51 is fixed to the top of the support frame 46, and the rotor end of the motor 4 51 is fixed to the screw rod 3 50. A bevel gear 1 52 is fixed to the bottom end of the screw rod 3 50. A connecting frame 55 is fixed to the top of the support seat 21. A support plate 54 is fixed to one side of the support frame 46. A screw rod 4 56 is rotatably provided between the support plate 54 and the connecting frame 55. A bevel gear 2 53 is rotatably provided on the side of the support plate 54 away from the screw rod 4 56. The bevel gear 2 53 is fixed to the screw rod 4 56, and the bevel gear 2 53 is meshed with the bevel gear 1 52. A guide rod 57 is fixed between the connecting frame 55 and the support frame 46, and a fixing ring 58 is fixed to the surface of the auger conveyor 43 , connecting rods 59 are fixed on both sides of the fixed ring 58, and the connecting rods 59 are threadedly connected to the screw rod three 50. The connecting rods 59 can slide on the surface of the guide rod 57. The motor four 51 is started to rotate the screw rod three 50. Under the guidance of the rotating groove 49, the sliding frame drives the upper cylinder 1 47 and the pressure plate 48 to descend close to the blanking port. When the motor four 51 rotates, the bevel gear 1 52 synchronously drives the bevel gear 2 53 and the screw rod four 56 to rotate. Under the guidance of the guide rod 57, the connecting rods 59 and the fixed ring 58 drive the auger conveyor 43 and its upper bend 44 and the discharge cover 45 away from the blanking port while the cylinder 1 47 and the pressure plate 48 descend, so that the pressure plate 48 and the discharge cover 45 are alternately aligned with the blanking port, which is conducive to maintaining the continuity of sandbag filling;

[0054] It should be noted that the initial state of the pressure plate 48 is located at a high position away from the blanking port, and the initial state of the discharge cover 45 is aligned with the blanking port. The transmission ratio of the bevel gear 2 53 and the bevel gear 1 52 is 1:1, ensuring that the rotation speed of the screw rod 3 50 and the screw rod 4 56 are synchronized, and the pitch of the screw rod 3 50 matches the pitch of the screw rod 4 56, so that the discharge cover 45 can move horizontally synchronously when the pressure plate 48 descends to avoid interference.

[0055] It should be further explained that the start, stop and direction of the motor 51 can be controlled by a PLC or a single chip microcomputer to achieve an alternating action cycle of the pressing plate 48 and the discharge cover 45;

[0056] At the same time, displacement sensors are installed on the sliding frame and the auger conveyor 43 to monitor the position of the pressing plate 48 and the discharge cover 45 in real time. For example, when the pressing plate 48 is 10±0.5mm away from the blanking port, the compaction action is triggered, and the filling is started when the discharge cover 45 coincides with the blanking port.

[0057] Reference Figure 1 、 3The bottom of the support seat 21 corresponds to the loading rack 22 and the drop port at the bottom thereof. A bag support assembly is also provided. The bag support assembly includes a slide rail 30, a screw rod 2 31, a sprocket 32, a chain 33, a fixing frame 34, a motor 35, a sliding block 36, and a hook 37. Two slide rails 30 are provided and fixed to the bottom of the support seat 21. The screw rod 2 31 rotates in the slide rail 30, and the sliding block 36 slides in the slide rail 30. The sliding block 36 is threadedly connected to the screw rod 2 31. The bottom of the sliding block 36 is fixed to the hook 37. The sprockets 32 rotate on one side of the two slide rails 30 and are fixed to the two screw rods 2 31 respectively. The chain 33 engages with the two sprockets 32 at the same time. The fixing frame 34 is fixed to one side of the slide rail 30. The motor 35 is fixed to the fixing frame On one side of 34, the rotor end of motor three 35 is fixed to one of the sprockets 32, and a hanging belt 39 is fixed to the surface of the sandbag 38, and the hanging belt 39 is hung on the hook 37. The sandbag 38 is located between the two slide rails 30. The sandbag 38 is manually placed between the two splints 13, and the hanging belt 39 on the surface is hung on the hook 37. The motor three 35 and the transmission belt 2 are started synchronously. The motor three 35 drives one of the sprockets 32 to rotate. Under the transmission action of the chain 33, the other sprocket 32 rotates synchronously, and then drives the two lead screws 31 to rotate. A sliding groove for the sliding block 36 to slide is opened in the slide rail 30. Under the guidance of the sliding groove, the sliding block 36 and the hook 37 with the hanging belt 39 at its bottom are moved to the bottom of the drop port.

[0058] Reference Figure 1 、 8 , 11. The bottom of the support seat 21 corresponds to the discharge cover 45 and the blanking port at the bottom thereof. A fastening assembly is also provided. The fastening assembly includes a rotating ring 60, a guide block 62, an outer gear ring 63, a rack 64, a cylinder 2 65, an inner ring 66, and a clamping rod 67. The rotating ring 60 rotates at the bottom of the support seat 21. The inner ring 66 is fixed inside the rotating ring 60 and is integrally formed with the rotating ring 60. A plurality of clamping rods 67 are provided circumferentially. One end of each of the plurality of clamping rods 67 is hinged to the bottom of the support seat 21. A plurality of guide grooves 61 for the guide block 62 to rotate are provided circumferentially on the surface of the rotating ring 60. The other ends of the plurality of clamping rods 67 pass through the guide block 62 and slide in the guide block 62. 63 is fixed on the surface of the rotating ring 60, the rack 64 slides on the bottom of the support seat 21, the rack 64 is engaged with the outer gear ring 63, the cylinder 2 65 is fixed on the bottom of the support seat 21, the telescopic end of the cylinder 2 65 is fixed to the rack 64, the electric cylinder 3 is started to push the sandbag 38 and the sandbag liner 29 up to the top of the inner wall of the rotating ring 60, at this time the sandbag liner 29 is sleeved on the outside of the inner ring 66, the cylinder 2 65 is started to push the rack 64 to slide, thereby driving the outer gear ring 63 and the rotating ring 60 to rotate, and under the guidance of the guide block 62, the clamping rod 67 is moved away from the end hinged to the support seat 21 and swung to the inside of the rotating ring 60 to tighten the bag mouth of the sandbag 38 to fix it.

[0059] Reference Figure 1-12A boxing punching bag automatic filling production method, applicable to any of the above-mentioned boxing punching bag automatic filling production systems, includes the following steps:

[0060] S1. Initialize the workstation and start the transmission belt 2 to drive an electric cylinder 3 and its bottom ladder 4 and vertical plate 5 to move between the initial ends of the hook 37. The position of the ladder 4 is detected by a photoelectric sensor to ensure that it is horizontally aligned with the hook 37.

[0061] S2. Sandbag loading and hanging: manually place the sandbag 38 between the two clamping plates 13, and hang the hanging belt 39 on the hook 37. Synchronously start the motor 35 and the transmission belt 2. The motor 35 drives one of the sprockets 32 to rotate. Under the transmission action of the chain 33, the other sprocket 32 rotates synchronously, which in turn drives the two screw rods 31 to rotate. Under the guidance of the slide rail 30, the sliding block 36 and the hook 37 at its bottom hanging the hanging belt 39 move to the bottom of the drop opening. The rotation of the transmission belt 2 drives the upper electric cylinder 3, the trapezoidal platform 4, the vertical plate 5 and the hook 37 to move synchronously to the bottom of the drop opening. At this time, the sandbag 38 can be placed on the top of the trapezoidal platform 4, and the infrared sensor is used to detect whether the sandbag 38 is placed in the center. If the deviation is greater than 5mm, an alarm is triggered.

[0062] S3, the inner liner is automatically loaded, the electric push rod 25 is started to push the arc push plate 26, and under the guidance of the guide roller 28, the sandbag inner liner 29 in the loading rack 22 enters the sandbag 38 from the drop port;

[0063] S4, the splints are opened and closed and the sandbags are lifted. The motor 2 20 is started to rotate one gear 18 and the other gear 18, thereby rotating the connecting column 16 on the top of the two gears 18. Under the connection of the rotating disk 17, the two splints 13 are synchronously opened and closed along the axes of the two hinge shafts 12. When the two splints 13 are in contact with the surface of the sandbag 38, the motor 2 20 is turned off. The electric cylinder 3 is started to push the trapezoidal platform 4 and the sandbag 38 on its top to rise until the hanging belt 39 is separated from the hook 37 and then reset. The transmission belt 2 is started to drive the electric cylinder 3 and the trapezoidal platform 4 on its top, the sandbag 38 and the sandbag liner 29 inside to move to the bottom of the blanking port.

[0064] S5, the bag opening is fixed and the clamping plate is reset. The electric cylinder 3 is started again to push the sandbag 38 and the sandbag liner 29 up until they are in contact with the top of the inner wall of the rotating ring 60. At this time, the sandbag liner 29 is sleeved on the outside of the inner ring 66. The second cylinder 65 is started to push the rack 64 to slide, thereby driving the outer gear ring 63 and the rotating ring 60 to rotate. Under the guidance of the guide block 62, the clamping rod 67 is moved away from the end hinged to the support seat 21 and swung toward the inside of the rotating ring 60 to tighten the bag opening of the sandbag 38. At this time, the second motor 20 is started as in S4 to drive the two clamping plates 13 away from the surface of the sandbag 38.

[0065] S6, layered filling and dynamic beating: start motor 18 to rotate screw 17, and under the guidance of chute 6, the lifting block 11 and its two clamping plates 13 are lowered to a position below the surface of the sandbag 38. Start the auger conveyor 43 to pass the filler weighed in the metering bin 41 through the bend 44 and the discharge cover 45 through the discharge port into the sandbag 38. As the filler falls, start motor 20 in the manner of S4 to cause the two clamping plates 13 to continue opening and closing as the filler falls, beating the surface of the sandbag 38 until the discharge is completed;

[0066] S7, filling and compaction coordination, start motor 4 51 to rotate screw rod 3 50, under the guidance of rotating groove 49, the sliding frame drives the upper cylinder 1 47 and the pressure plate 48 to descend close to the blanking port, while motor 4 51 rotates, bevel gear 1 52 synchronously drives bevel gear 2 53 and screw rod 4 56 to rotate, under the guidance of guide rod 57, the connecting rod 59 and the fixing ring 58 drive the auger conveyor 43 and its upper curved pipe 44 and the discharge cover 45 away from the blanking port while the cylinder 1 47 and the pressure plate 48 descend, start cylinder 1 47 to push the pressure plate 48 downward to perform preliminary compaction on the filler initially filled in the sandbag 38, after preliminary compaction, start motor 41 in reverse so that the auger conveyor 43 and its upper curved pipe 44 and the discharge cover 45 are alternately opposite to the blanking port with cylinder 1 47 and the pressure plate 48;

[0067] S8, repeat filling and compacting, adjusting the positions of the two clamps 13 to the middle and upper positions of the surface of the sandbag 38 in sequence by the method in S6, and repeating the subsequent steps in S6 and step S7 in sequence to further compact the new filling in the sandbag 38 until it is full;

[0068] S9: Filling is complete and the sandbag is removed. The steps in S5 are reversed to release the clamping rod 67 from the sandbag 38. The electric cylinder 3 retracts and resets. The transmission belt 2 is started again to move the electric cylinder 3 and the sandbag 38 filled with filler on its top away from the blanking port. At this time, the two clamping plates 13 are located at the top of the sandbag 38, completing one round of automatic filling.

[0069] It should be noted that the two splints 13 continuously open and close to hit the surface of the sandbag 38 at a frequency that increases from top to bottom when the filling falls;

[0070] It should be further explained that, in the initial stage of filling, the two clamping plates 13 are located at the lower part of the surface of the sandbag 38. At this time, the filler is less and relatively loose. The use of high-frequency beating can effectively break the initial gaps between the filler particles, promote close contact and rearrangement between the particles, and cooperate with the compaction of the pressing plate 48 to quickly form a relatively solid bottom foundation, thereby helping the subsequent filler to be more evenly distributed in the sandbag and reducing the void ratio.

[0071] As the filling height increases, the filler gradually increases and the overall structure becomes more stable. At this time, reducing the beating frequency can avoid excessive compression and prevent the filler from being too compacted, resulting in internal stress concentration or local hardening. At the same time, reducing the beating frequency can also reduce the disturbance to the initial compaction part, which is beneficial to improve the filling efficiency and filling quality. Moderate beating can help further adjust the position of the filler to ensure that each layer of filler can achieve the best density and uniformity.

[0072] Finally, a few points should be explained: First, in the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0073] Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict.

[0074] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0075] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A boxing sandbag automatic filling production system, comprising a base (1), characterized in that: A transmission belt (2) is provided on the top of the base (1), and a plurality of electric cylinders (3) are equidistantly provided on the top of the transmission belt (2). The telescopic ends of the plurality of electric cylinders (3) are all fixed with a trapezoidal platform (4). An arc groove (10) for placing sandbags (38) is provided on the top of the trapezoidal platform (4). A vertical plate (5) is fixed on the top of the trapezoidal platform (4). Synchronously openable and closable clamps (13) and a lifting assembly for driving the two clamps (13) to rise and fall are provided on both sides of the vertical plate (5). A support seat (21) is provided on the top of the base (1). A loading assembly for loading the inner liner (29) of the sandbag, a filling assembly for automatically filling the sandbag (38), and a compacting assembly are sequentially provided on the top of the support seat (21). The filling assembly and the compacting assembly are alternately located above the bag opening of the sandbag (38). A bag support assembly is also provided at the bottom of the support seat (21) corresponding to the loading assembly. A fastening assembly is also provided at the bottom of the support seat (21) corresponding to the filling assembly.

2. The automatic boxing sandbag filling production system according to claim 1, characterized in that: A lifting block (11) is slidingly provided on one side of the vertical plate (5), and hinge shafts (12) are fixed on both sides of the lifting block (11), and the two hinge shafts (12) are hinged to the two clamping plates (13) respectively. A connecting shaft (14) is fixed on one end of the two clamping plates (13) away from the vertical plate (5), and a connecting rod (15) is hinged on the two connecting shafts (14). The other ends of the two connecting rods (15) are hinged to the connecting columns (16), and the bottom ends of the two connecting columns (16) are fixed with a rotating disk (17). A mounting frame (19) is fixed on one side of the lifting block (11), and two mutually meshing gears (18) are rotatably provided on the top of the mounting frame (19). The bottoms of the two rotating disks (17) are fixed to the tops of the two gears (18) respectively. A motor (20) is fixed on the top of the mounting frame (19), and the rotor end of the motor (20) is fixed to one of the gears (18).

3. The automatic boxing sandbag filling production system according to claim 2, characterized in that: The lifting assembly includes a screw rod (7) and a motor (8). A sliding groove (6) for the screw rod (7) to rotate is provided on one side of the vertical plate (5). A slider is fixed on the side of the lifting block (11) close to the vertical plate (5). The slider slides in the sliding groove (6). The slider is threadedly connected to the screw rod (7). A mounting groove (9) for installing the power supply (8) is provided on the top of the trapezoidal platform (4). The rotor end of the motor (8) passes through the bottom of the vertical plate (5) and is fixed to the bottom end of the screw rod (7).

4. The automatic boxing sandbag filling production system according to claim 1, characterized in that: The feeding assembly comprises a feeding frame (22), a guide plate (23), a fixed plate (24), an electric push rod (25), an arc-shaped push plate (26), a rolling groove (27), and a guide roller (28). The feeding frame (22) is fixed on the top of the support seat (21), the guide plate (23) is fixed on one side of the feeding frame (22), a plurality of rolling grooves (27) are provided on both sides of the inner wall of the feeding frame (22), and a guide roller (28) is rotatably provided in the plurality of rolling grooves (27). The guide roller (28) is in contact with the surface of the sandbag liner (29), the fixed plate (24) is fixed on one side of the feeding frame (22), the electric push rod (25) is fixed on one side of the fixed plate (24), the telescopic end of the electric push rod (25) is fixed to the arc-shaped push plate (26), and a drop opening for the sandbag liner (29) to fall is provided on the top of the support seat (21).

5. The automatic boxing sandbag filling production system according to claim 1, characterized in that: The filling assembly comprises a metering bin (41), a connecting pipe (42), an auger conveyor (43), a curved pipe (44), and a discharge cover (45); a support bracket (40) is fixed on the top of the support seat (21); the metering bin (41) is fixed on the support bracket (40); the top of the connecting pipe (42) is fixedly connected to the bottom of the metering bin (41); the bottom of the connecting pipe (42) is fixedly connected to the connecting pipe (42); the curved pipe (44) is fixed to one end of the auger conveyor (43) away from the connecting pipe (42); the discharge cover (45) is fixed to one end of the curved pipe (44) away from the auger conveyor (43); a blanking port is provided on the top of the support seat (21); and the discharge cover (45) corresponds to the blanking port.

6. The automatic boxing sandbag filling production system according to claim 5, characterized in that: The compacting assembly includes a cylinder (47) and a pressure plate (48). A support frame (46) is fixed on the top of the support seat (21). A sliding frame and a sliding assembly for driving the sliding frame to slide and rise are provided on the support frame (46). A through hole for the cylinder (47) to pass through is opened on the top of the support frame (46). The cylinder (47) is fixed on the sliding frame. The telescopic end of the cylinder (47) is fixed to the pressure plate (48). When the sliding assembly drives the sliding frame and the cylinder (47) to descend and approach the blanking port, the bent pipe (44) and the discharge cover (45) are away from the blanking port.

7. The automatic boxing sandbag filling production system according to claim 6, characterized in that: The support frame (46) is provided with a rotation groove (49) for the screw rod 3 (50) to rotate, and the sliding frame slides in the rotation groove (49). A motor 4 (51) is fixed on the top of the support frame (46), and the rotor end of the motor 4 (51) is fixed to the screw rod 3 (50). A bevel gear 1 (52) is fixed to the bottom end of the screw rod 3 (50). A connecting frame (55) is fixed on the top of the support seat (21). A support plate (54) is fixed on one side of the support frame (46). A screw rod 4 (56) is rotatably provided between the support plate (54) and the connecting frame (55). The support plate (54) is provided with a bevel gear (53) on the side away from the screw rod (56), the bevel gear (53) is fixed to the screw rod (56), the bevel gear (53) is meshed with the bevel gear (52), a guide rod (57) is fixed between the connecting frame (55) and the support frame (46), a fixing ring (58) is fixed on the surface of the auger conveyor (43), connecting rods (59) are fixed on both sides of the fixing ring (58), the connecting rods (59) are threadedly connected to the screw rod (50), and the connecting rods (59) can slide on the surface of the guide rod (57).

8. The automatic boxing sandbag filling production system according to claim 1, characterized in that: The bag support assembly includes a slide rail (30), a second screw rod (31), a sprocket (32), a chain (33), a fixed frame (34), a third motor (35), a sliding block (36), and a hook (37). The slide rail (30) is provided with two and is fixed to the bottom of the support seat (21). The second screw rod (31) rotates in the slide rail (30), and the sliding block (36) slides in the slide rail (30). The sliding block (36) is threadedly connected to the second screw rod (31). The bottom of the sliding block (36) is fixed to the hook (37). The sprocket (32) rotates The sandbag (38) is movable on one side of the two slide rails (30) and is respectively fixed to the two screw rods (31). The chain (33) is engaged with the two sprockets (32) at the same time. The fixing frame (34) is fixed on one side of the slide rails (30). The motor (35) is fixed on one side of the fixing frame (34). The rotor end of the motor (35) is fixed to one of the sprockets (32). A hanging belt (39) is fixed on the surface of the sandbag (38). The hanging belt (39) is hung on the hook (37). The sandbag (38) is located between the two slide rails (30).

9. The automatic boxing sandbag filling production system according to claim 1, characterized in that: The fastening assembly includes a rotating ring (60), a guide block (62), an outer gear ring (63), a rack (64), a second cylinder (65), an inner ring (66), and a clamping rod (67). The rotating ring (60) rotates at the bottom of the support seat (21). The inner ring (66) is fixed inside the rotating ring (60) and is integrally formed with the rotating ring (60). A plurality of clamping rods (67) are provided circumferentially. One end of each of the clamping rods (67) is hinged to the bottom of the support seat (21). The rotating ring (60) is A plurality of guide grooves (61) for the guide block (62) to rotate are provided on the circumference of the surface. The other ends of the plurality of clamping rods (67) pass through the guide block (62) and slide in the guide block (62). The outer gear ring (63) is fixed on the surface of the rotating ring (60). The rack (64) slides on the bottom of the support seat (21). The rack (64) is engaged with the outer gear ring (63). The cylinder 2 (65) is fixed on the bottom of the support seat (21). The telescopic end of the cylinder 2 (65) is fixed to the rack (64).

10. A method for automatically filling a boxing sandbag, applicable to the automatic filling production system for a boxing sandbag according to any one of claims 1 to 9, characterized in that: The steps are as follows: S1, station initialization, starting the transmission belt (2) to move an electric cylinder (3) and its bottom trapezoidal platform (4) and vertical plate (5) to between the initial ends of the hook (37); S2, sandbag loading and hanging, manually place the sandbag (38) between the two clamping plates (13), and hang the hanging belt (39) on the surface on the hook (37), start the motor three (35) and the transmission belt (2) synchronously, the motor three (35) drives one of the sprockets (32) to rotate, and under the transmission action of the chain (33), the other sprocket (32) rotates synchronously, thereby driving the two screw rods (31) to rotate, and under the guidance of the slide rail (30), the sliding block (36) and the hook (37) of the hanging belt (39) at the bottom thereof move to the bottom of the drop port, and the rotation of the transmission belt (2) drives the upper electric cylinder (3), the trapezoidal platform (4), the vertical plate (5) and the hook (37) to move synchronously to the bottom of the drop port, and the sandbag (38) can be placed on the top of the trapezoidal platform (4); S3, the inner liner is automatically loaded, the electric push rod (25) is started to push the arc push plate (26), and under the guidance of the guide roller (28), the sandbag inner liner (29) in the loading rack (22) enters the sandbag (38) from the drop port; S4, the splints are opened and closed and the sandbags are lifted. The motor 2 (20) is started to make one gear 1 (18) drive the other gear 1 (18) to rotate, thereby making the connecting column (16) on the top of the two gears 1 (18) rotate. Under the connecting action of the rotating disk (17), the two splints (13) are opened and closed synchronously along the axis of the two hinge shafts (12). When the two splints (13) are in contact with the surface of the sandbag (38), the motor 2 (20) is turned off. The electric cylinder (3) is started to push the trapezoidal platform (4) and the sandbag (38) on its top to rise until the hanging belt (39) is separated from the hook (37) and reset. The transmission belt (2) is started to drive the electric cylinder (3) and the trapezoidal platform (4) on its top and the sandbag (38) and the sandbag liner (29) inside to move to the bottom of the blanking port. S5, the bag opening is fixed and the splint is reset, and the electric cylinder (3) is started again to push the sandbag (38) and the sandbag liner (29) up to the top of the inner wall of the rotating ring (60). At this time, the sandbag liner (29) is sleeved on the outside of the inner ring (66), and the second cylinder (65) is started to push the rack (64) to slide, thereby driving the outer gear ring (63) and the rotating ring (60) to rotate. Under the guidance of the guide block (62), the clamping rod (67) is moved away from the end hinged to the support seat (21) to swing toward the inside of the rotating ring (60) to tighten the bag opening of the sandbag (38) and fix it. At this time, the motor (20) is started as in S4 to drive the two splints (13) away from the surface of the sandbag (38); S6, layered filling and dynamic beating, start the motor 1 (8) to rotate the screw rod 1 (7), and under the guidance of the chute (6), the lifting block (11) and the two clamping plates (13) thereon are lowered to the lower position of the surface of the sandbag (38), and the auger conveyor (43) is started to pass the filler weighed in the metering bin (41) through the bend pipe (44) and the discharge cover (45) through the discharge port into the sandbag (38). While the filler falls, start the motor 2 (20) as in S4 to make the two clamping plates (13) continue to open and close when the filler falls to beat the surface of the sandbag (38) until the discharge is completed; S7, filling and compacting coordination, start the motor 4 (51) to rotate the screw rod 3 (50), under the guidance of the rotating groove (49), the sliding frame drives the cylinder 1 (47) and the pressure plate (48) on it to descend close to the blanking port, while the motor 4 (51) rotates, the bevel gear 1 (52) synchronously drives the bevel gear 2 (53) and the screw rod 4 (56) to rotate, under the guidance of the guide rod (57), the connecting rod (59) and the fixed ring (58) drive the auger conveyor ( 43) and its upper curved pipe (44) and discharge cover (45) are away from the blanking port when the cylinder (47) and the pressure plate (48) are lowered, the cylinder (47) is started to push the pressure plate (48) downward to perform preliminary compaction on the filler initially filled in the sandbag (38), and after preliminary compaction, the motor (51) is started to reverse so that the auger conveyor (43) and its upper curved pipe (44) and discharge cover (45) are alternately opposite to the blanking port with the cylinder (47) and the pressure plate (48); S8, repeat filling and compacting, adjusting the positions of the two clamps (13) to the middle and upper positions of the surface of the sandbag (38) in sequence by the method in S6, and repeating the subsequent steps in S6 and step S7 in sequence to further compact the new filling in the sandbag (38) until it is full; S9, after the filling is completed and the sandbag is removed, the steps in S5 are reversed to release the clamping rod (67) from fixing the sandbag (38). At this time, the electric cylinder (3) is retracted and reset. The transmission belt (2) is started again to move the electric cylinder (3) and the sandbag (38) filled with fillers on its top away from the blanking port. At this time, the two clamping plates (13) are located at the top of the sandbag (38), and an automatic filling is completed. The two clamps (13) continuously open and close to beat the surface of the sandbag (38) at a frequency that increases from top to bottom when the filling material falls.

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