Rice packing box machine

Abstract

The utility model relates to a rice packaging box machine, which is characterized in that the rice packaging box machine comprises a paper box scraping mechanism, and the paper box scraping mechanism comprises a plurality of box scraping plates capable of keeping a turnover plate of a paper box in an open state; the carton pushing mechanism comprises two carton pushing mechanism lifting electric push rods connected to the machine frame and a carton pushing mechanism lifting frame connected to the free ends of the carton pushing mechanism lifting electric push rods, and a lifting frame guide rail for guiding the carton pushing mechanism lifting frame to vertically slide is arranged on the machine frame. A first transverse shaft and a second transverse shaft which can rotate are arranged on the first side and the second side of the box raking mechanism lifting frame in parallel, and a plurality of box raking plates rotating along with the transverse shafts are arranged on the first transverse shaft and the second transverse shaft. The carton scraping plate comprises a side carton scraping plate for keeping a side turnover plate of the carton in an open state, and a front carton scraping plate and a rear carton scraping plate for keeping a front turnover plate and a rear turnover plate of the carton in an open state; the rice packing box machine is favorable for improving the working efficiency.

Description

Technical Field

[0001] The utility model relates to a rice bag packaging device, in particular to a rice packaging box machine. Background Art

[0002] Vacuum rice bags are of high value and need to be protected in cartons during transportation. Traditional manual packing is time-consuming and labor-intensive.

[0003] Although some automated rice packaging machines have appeared, such as the Chinese patent "A packaging device for rice packaging machine" authorization announcement number CN219565630U, the patent does not solve the problem that the flip plate of the carton is easily retracted, resulting in the rice bag being unable to be placed in the carton.

[0004] Although the applicant applied for a patent for a lifting and rotating box-lifting mechanism and its working method in 2022, with the authorization announcement number CN115231060A, and although it can solve the problem that the flip plate of the carton is easily retracted, resulting in the inability to put rice bags into the carton, each box-lifting plate is driven by a separate cylinder. As time goes by, the cylinders will produce inconsistent box-lifting actions due to different wear and other reasons. In order to allow each cylinder to move into place before proceeding to the next step, a certain time gap needs to be left to wait for the cylinder with delayed action (when the object of use is multiple groups of cartons, the time gap needs to be longer), thereby affecting work efficiency; and the current patent cannot be adjusted for cartons and rice bags of different sizes, thereby affecting the scope of application of the equipment. Summary of the Invention

[0005] The purpose of the utility model is to provide a rice packaging box machine, which has a reasonable design and is conducive to efficiently keeping the carton turning plate in an open state when packing rice bags.

[0006] The technical solution of the utility model is:

[0007] The utility model is characterized in that it comprises a frame, a rice bag conveying mechanism arranged in the frame, a carton conveying mechanism, a carton opening mechanism and a rice bag lifting and moving mechanism, wherein the carton opening mechanism comprises a plurality of opening plates capable of keeping the turning plate of the carton in an open state;

[0008] Among them, the carton unpacking mechanism includes two sets of unpacking mechanism lifting electric push rods connected to the machine frame and an unpacking mechanism lifting frame connected to the free end of the unpacking mechanism lifting electric push rod. A lifting frame guide rail for guiding the vertical sliding of the unpacking mechanism lifting frame is provided on the machine frame. On the first side and the second side of the unpacking mechanism lifting frame, a first horizontal shaft and a second horizontal shaft that can both rotate are arranged in parallel. A number of sets of unpacking plates that rotate with the horizontal shaft are provided on both the first horizontal shaft and the second horizontal shaft. The unpacking plate includes a side unpacking plate for keeping the side turnover plate of the carton in an open state and a front unpacking plate and a rear unpacking plate for keeping the front and rear turnover plates of the carton in an open state.

[0009] Preferably, the above-mentioned rice bag lifting and moving mechanism includes a first machine frame fixedly arranged on the machine frame, a first horizontal sliding seat slidably connected to the first machine frame, and a first vertical frame fixedly arranged on the first horizontal sliding seat. The first vertical frame is connected with a first vertical sliding seat in a lifting and sliding manner. A number of sets of suction cup assemblies capable of grasping and transferring the rice bags in the rice bag conveying mechanism to the cartons in the carton conveying mechanism are connected to the first vertical sliding seat;

[0010] Preferably, a first seat plate is fixedly connected to the first vertical sliding seat. A first seat plate guide rail is provided on the first seat plate. A first cross beam is slidably connected to the first seat plate guide rail. A first horizontal telescopic cylinder is arranged between the first cross beam and the first seat plate to drive the horizontal movement of the first cross beam. A number of sets of rotating shafts are rotatably connected to the first cross beam. The lower ends of the rotating shafts are connected with the above-mentioned number of sets of suction cup assemblies. The negative pressure pipelines of the suction cup assemblies are connected in series with the solenoid valves located on the first cross beam to control the suction and release of the suction cups.

[0011] Preferably, four rotating shafts are rotatably connected to the bottom surface of the first cross beam. The upper ends of the rotating shafts penetrate into the first cross beam and are fixedly connected with first synchronous belt wheels. A first synchronous belt motor is fixedly connected to the middle of the bottom surface of the first cross beam. The output shaft of the first synchronous belt motor extends into the first cross beam and is fixedly connected with two coaxially arranged second synchronous belt wheels. The second synchronous belt wheels are connected with the first synchronous belt wheels through synchronous belts. The first synchronous belt wheels on the two rotating shafts on the same side of the first synchronous belt motor are connected through a first synchronous belt. When the output shaft of the first synchronous belt motor rotates, it drives the four rotating shafts and the suction cup assemblies to rotate synchronously to realize the rotation of the rice bags.

[0012] Preferably, the above-mentioned suction cup assembly is fixed to the lower end of a cylindrical cantilever. The upper end of the cylindrical cantilever is fixedly connected to the lower end of the rotating shaft. The cylindrical cantilever is a hollow cylindrical square tube, and hollow holes are provided on the side walls of the cylindrical square tube.

[0013] Preferably, the above-mentioned suction cup assembly includes a suction cup tube connected to a negative pressure pipeline and a suction cup integrally formed with the suction cup tube. A horizontally arranged mounting plate is fixedly provided at the lower part of the cylindrical cantilever. The outer periphery of the suction cup tube has an external thread and its upper part passes through a perforation on the mounting plate. Nuts are used to lock the upper and lower parts of the suction cup tube passing through the mounting plate.

[0014] Preferably, two first support plates are arranged at intervals on the above-mentioned first seat plate. The cylinder body of the first horizontal telescopic cylinder is fixedly arranged between the two first support plates. The free end of the telescopic rod of the first horizontal telescopic cylinder is fixedly connected to a second support plate on the first cross beam.

[0015] Preferably, second synchronous belt wheels are arranged in parallel and at intervals on the above-mentioned first rack. A second synchronous belt is connected between the two second synchronous belt wheels. One of the two second synchronous belt wheels is driven to rotate by a second synchronous belt motor. The first horizontal sliding seat is fixedly connected to the second synchronous belt.

[0016] Preferably, third synchronous belt wheels are arranged in parallel and at intervals on the first vertical frame. A third synchronous belt is connected between the two third synchronous belt wheels. One of the two third synchronous belt wheels is driven to rotate by a third synchronous belt motor. The first vertical sliding seat is fixedly connected to the third synchronous belt.

[0017] Preferably, a longitudinal sliding seat is arranged on the first side of the lifting frame of the above-mentioned case-unloading mechanism. The first horizontal shaft is rotatably hinged on the longitudinal sliding seat. The longitudinal sliding seat is slidably connected to a longitudinal guide rail on the lifting frame of the case-unloading mechanism. The longitudinal sliding of the longitudinal sliding seat is driven by a first longitudinal cylinder. A swing cylinder is connected to the longitudinal sliding seat. The free end of the telescopic rod of the swing cylinder is fixedly connected to the first horizontal shaft through a swing arm to realize the rotation of the first horizontal shaft under the action of the swing cylinder. A plurality of groups of side case-unloading plates are fixedly arranged on the first horizontal shaft.

[0018] Preferably, the above-mentioned front case-unloading plate is fixedly connected to a first case-unloading longitudinal shaft. The first case-unloading longitudinal shaft is rotatably connected to a first case-unloading longitudinal shaft bushing. The first case-unloading longitudinal shaft bushing is connected to the longitudinal sliding seat. The end of the first case-unloading longitudinal shaft is connected to the first horizontal shaft through a universal joint. When the first horizontal shaft rotates, the first case-unloading longitudinal shaft and the front case-unloading plate are driven to rotate through the universal joint, so that the front turning plate of the carton is in an open state.

[0019] Preferably, a horizontally movable horizontal sliding seat is arranged on the lifting frame of the above-mentioned case-unloading mechanism. The horizontal sliding seat is slidably connected to a horizontal guide rail on the lifting frame of the case-unloading mechanism. The horizontal sliding of the horizontal sliding seat is driven by a first horizontal cylinder. The second horizontal shaft is rotatably hinged on the horizontal sliding seat. A rotary cylinder capable of driving the second horizontal shaft to rotate is arranged on the horizontal sliding seat. A plurality of groups of side case-unloading plates are arranged on the second horizontal shaft.

[0020] Preferably, the rear carton-opening board is fixedly connected to the second carton-opening longitudinal axis, the second carton-opening longitudinal axis is rotatably connected to the second carton-opening longitudinal axis bushing, the second carton-opening longitudinal axis bushing is connected to the transverse sliding seat, and the end of the second carton-opening longitudinal axis is connected to the second transverse axis through a universal joint, so that when the second transverse axis rotates, the second carton-opening longitudinal axis and the rear carton-opening board are driven to rotate through the universal joint, so that the rear turning board of the carton is in an open state.

[0021] Preferably, the universal joint includes two C-shaped blocks and a connecting block connected between the two C-shaped blocks. The first end of the connecting block is hinged to one C-shaped block through a first pin shaft, and the second end of the connecting block is fixedly connected to the other C-shaped block.

[0022] Preferably, guide box guard plates are provided below the first transverse axis and the second transverse axis on the carton-opening mechanism lifting frame. A plurality of windows are opened on the guide box guard plates, and rotatable blocking box plates are rotatably hinged in the plurality of windows. Each blocking box plate is fixedly connected with a turning arm, and each turning arm is hinged to a turning push rod. The turning push rod is connected to the free end of the telescopic rod of the blocking box telescopic cylinder, and the cylinder body of the blocking box telescopic cylinder is connected to the guide box guard plate.

[0023] When the rice packaging box machine of the present invention works, rice bags are input by the rice bag conveying mechanism, cartons are input by the carton conveying mechanism, and then through the carton-opening mechanism, it is ensured that each turning board of each carton is in an open state. Finally, the rice bag is grabbed and transferred from the rice bag conveying mechanism to the carton on the carton-opening mechanism through the rice bag lifting and moving mechanism. After completion, the carton filled with rice bags is output in the carton conveying mechanism.

[0024] The rice packaging box machine of the present invention is provided with a plurality of groups of carton-opening boards that rotate with the transverse axes on both the first transverse axis and the second transverse axis. The carton-opening boards include side carton-opening boards for keeping the side turning boards of the carton in an open state, and front and rear carton-opening boards for keeping the front and rear turning boards of the carton in an open state. Thus, the side carton-opening boards, the front carton-opening boards, and the rear carton-opening boards can achieve linkage actions, thereby reducing the problem of inconsistent action responses of the existing carton-opening boards and being beneficial to improving work efficiency. Description of the Drawings

[0025] Figure 1 is a perspective view of the present invention;

[0026] Figure 2 is a perspective view of one perspective of the rice bag lifting and moving mechanism of the present invention;

[0027] Figure 3 is a perspective view of another perspective of the rice bag lifting and moving mechanism of the present invention;

[0028] Figure 4 is a partial perspective view of the rice bag lifting and moving mechanism of the present invention;

[0029] Figure 5 is a perspective view of a partial part of the rice bag lifting and moving mechanism of the present utility model;

[0030] Figure 6 is Figure 5 the sectional view of;

[0031] Figure 7 is a perspective view of one angle of the carton unpacking mechanism;

[0032] Figure 8 is a perspective view of another angle of the carton unpacking mechanism;

[0033] Figure 9 is the connecting perspective view of the first horizontal axis;

[0034] Figure 10 is the connecting perspective view of the second horizontal axis;

[0035] Figure 11 is the connecting perspective view of the first horizontal axis and the front unpacking board, etc.;

[0036] Figure 12 is Figure 11 the partial view of;

[0037] Figure 13 is the connecting perspective view of the second horizontal axis and the rear unpacking board, etc.;

[0038] Figure 14 is the connecting perspective view of the guide box guardrail board and the box-blocking telescopic cylinder, etc.;

[0039] Figure 15 is the connecting perspective view of another angle of the guide box guardrail board;

[0040] Figure 16 is the connecting perspective view of the box-blocking telescopic cylinder and the box-blocking board, etc.;

[0041] Figure 17 is a perspective view of one angle of the rice bag conveying mechanism;

[0042] Figure 18 is a perspective view of another angle of the rice bag conveying mechanism;

[0043] Figure 19 is the perspective view of the rice bag guardrail adjusting mechanism;

[0044] Figure 20 is Figure 18 the partial perspective view of;

[0045] Figure 21 is the perspective view of a partial part of the carton conveying mechanism;

[0046] Figure 22 is the perspective view of a partial part of the carton conveying mechanism;

[0047] Figure 23 is a perspective view of the guardrail adjusting mechanism;

[0048] Figure 24 is a perspective view of the carton conveying mechanism;

[0049] Figure 25 is Figure 11 a partial view from another perspective. Detailed implementation manner

[0050] To make the above features and advantages of the present utility model more understandable, specific embodiments are hereinafter given and described in detail in conjunction with the accompanying drawings, but the present utility model is not limited thereto.

[0051] The rice packaging box machine of the present utility model includes a frame 1, a rice bag conveying mechanism A, a carton conveying mechanism B, a carton unpacking mechanism C and a rice bag lifting and moving mechanism D arranged in the frame 1. The carton unpacking mechanism C includes a plurality of unpacking plates capable of keeping the turning plates of the carton in an open state.

[0052] Among them, the rice bag conveying mechanism A and the carton conveying mechanism B can be belt conveyors, roller conveyors, etc. for transporting rice bags and cartons. Other specific structures will be described in detail later. The rice bag lifting and moving mechanism D is used to transfer the rice bags on the rice bag conveying mechanism A into the cartons on the carton conveying mechanism B, and it can be a manipulator or a structure to be described in detail later.

[0053] The carton unpacking mechanism C includes two groups of unpacking mechanism lifting electric push rods C1 (cylinders can also be used) connected to the frame 1 and an unpacking mechanism lifting frame C2 connected to the free end of the unpacking mechanism lifting electric push rod. The frame 1 is provided with a lifting frame guide rail C3 for guiding the vertical sliding of the unpacking mechanism lifting frame C2. The unpacking mechanism lifting frame C2 is vertically guided through the lifting frame guide rail C3 and is lifted by the action of the unpacking mechanism lifting electric push rod C1 (which is beneficial for adapting to cartons of different height dimensions).

[0054] On the first side and the second side of the lifting frame C2 of the case-unloading mechanism, a first horizontal shaft C4 and a second horizontal shaft C5 that can both rotate are arranged in parallel. A number of groups of case-unloading plates that rotate with the horizontal shaft are provided on both the first horizontal shaft C4 and the second horizontal shaft C5. The case-unloading plates include side case-unloading plates C6 for keeping the side turnover plate K1 of the carton K in an open state, and front case-unloading plates C7 and rear case-unloading plates C8 for keeping the front turnover plate K2 and the rear turnover plate K3 of the carton in an open state. That is, the first horizontal shaft C4 and the second horizontal shaft C5 each have a number of groups of case-unloading plates. By providing a number of groups of case-unloading plates that rotate with the horizontal shaft on both the first horizontal shaft and the second horizontal shaft, the side case-unloading plates, the front case-unloading plates, and the rear case-unloading plates can achieve linkage actions, thereby reducing the problem of inconsistent action responses of the existing case-unloading plates (that is, through the mechanical linkage actions of the side case-unloading plates, the front case-unloading plates, and the rear case-unloading plates, the number of cylinders used is reduced, which is beneficial to reducing the time reserved for waiting for each cylinder to complete the action), and is beneficial to improving work efficiency.

[0055] A longitudinal sliding seat C9 is provided on the first side of the above-mentioned case-unloading mechanism lifting frame C2. The first horizontal shaft C4 is rotatably hinged on the longitudinal sliding seat C9. The longitudinal sliding seat C9 is slidably connected to the longitudinal guide rail C10 on the case-unloading mechanism lifting frame C2. The longitudinal sliding of the longitudinal sliding seat is driven by a first longitudinal cylinder C11 to move, and the first longitudinal cylinder C11 is used to realize the sliding of the longitudinal sliding seat C9 in the longitudinal direction (the Y direction shown in the figure) (which is beneficial to adapting to cartons of different width dimensions).

[0056] A swing cylinder C12 (which can also be an electric push rod) is connected to the longitudinal sliding seat C9. The free end of the telescopic rod of the swing cylinder is fixedly connected to the first horizontal shaft C4 through a swing arm C13 (the first horizontal shaft C4 is rotatably hinged on the longitudinal sliding seat C9, one end of the swing arm C13 is connected to the free end of the telescopic rod of the swing cylinder, and the other end of the swing arm C13 is fixedly connected to the first horizontal shaft C4), so as to realize the rotation of the first horizontal shaft C4 and the side case-unloading plates C6 fixedly provided on the first horizontal shaft C4 under the action of the swing cylinder C12. In the figure, taking 4 groups of cartons as an example, that is, four groups of side case-unloading plates C6 are provided on the first horizontal shaft C4 (for keeping the side turnover plate on one side of the carton open).

[0057] The front carton-opening board C7 (for keeping the front turning board of the carton at the front side open) is fixedly connected to the first carton-opening longitudinal axis C14. The first carton-opening longitudinal axis C14 is rotatably connected to the first carton-opening longitudinal axis bushing C15. The first carton-opening longitudinal axis bushing C15 is fixedly connected to the longitudinal sliding seat C9. The end of the first carton-opening longitudinal axis is connected to the first transverse axis C4 through a universal joint C16 (which can be a crosshead universal joint capable of realizing power transmission in the vertical direction). The first carton-opening longitudinal axis and the first transverse axis C4 are arranged perpendicular or nearly perpendicular to each other. When the first transverse axis C4 rotates, the first carton-opening longitudinal axis C14 and the front carton-opening board C7 can be driven to rotate through the universal joint C16, so that the front turning board of the carton is in an open state. That is, by rotating the first transverse axis C4, the side carton-opening board C6 and the front carton-opening board C7 on the first side can be swung, and the side turning board and the front turning board on the first side can be kept in an open state.

[0058] A transverse sliding seat C17 capable of moving horizontally (in the X direction shown in the figure) is provided on the carton-opening mechanism lifting frame C2. The transverse sliding seat C17 is slidably connected to the transverse guide rail on the carton-opening mechanism lifting frame C2. The horizontal movement of the transverse sliding seat C17 is driven by the first horizontal cylinder C19. That is, under the action of the first horizontal cylinder C19, the transverse sliding seat C17 moves horizontally (which is beneficial for adapting to cartons of different length dimensions). The second transverse axis C5 is rotatably hinged on the transverse sliding seat C17. A rotary cylinder C20 capable of driving the second transverse axis C5 to rotate is provided on the transverse sliding seat C17. A plurality of groups of side carton-opening boards are provided on the second transverse axis C5. By the action of the rotary cylinder C20, the second transverse axis C5 and the side carton-opening boards on the second side rotate, so that the second side turning board of the carton is kept in an open state.

[0059] The rear carton-opening board C8 is fixedly connected to the second carton-opening longitudinal axis C21. The second carton-opening longitudinal axis C21 is rotatably connected to the second carton-opening longitudinal axis bushing C22. The second carton-opening longitudinal axis bushing C22 is fixedly connected to the transverse sliding seat C17. The end of the second carton-opening longitudinal axis C21 is connected to the second transverse axis C5 through a universal joint C16 (which can be a crosshead universal joint capable of realizing power transmission in the vertical direction). The second carton-opening longitudinal axis C21 and the second transverse axis C5 are arranged perpendicular or nearly perpendicular to each other. When the second transverse axis C5 rotates, the second carton-opening longitudinal axis C21 and the rear carton-opening board C8 can be driven to rotate through the universal joint C16, so that the rear turning board of the carton is in an open state. That is, by rotating the second transverse axis C5, the side carton-opening boards and the rear carton-opening board C8 on the second side can be swung, and the side turning board and the rear turning board on the second side can be kept in an open state.

[0060] The universal joint C16 can be a commercially available crosshead universal joint capable of achieving power transmission in the vertical direction, or have the following specific structure. The universal joint C16 of the present application includes two C-shaped blocks C23 and a connecting block C24 connected between the two C-shaped blocks. The first end of the connecting block is hinged to a C-shaped block through a first pin shaft, and the second end of the connecting block is fixedly connected to the other C-shaped block. The openings of the two C-shaped blocks are rotatably hinged on the transverse shaft (the first transverse shaft or the second transverse shaft) or the longitudinal shaft of the case-unloading mechanism. When the transverse shaft rotates, it drives the two C-shaped blocks to twist in sequence, and then drives the longitudinal shaft of the case-unloading mechanism to rotate.

[0061] In order to limit the positions of adjacent cartons, guide box guard plates C25 are provided below the first transverse shaft and the second transverse shaft on the lifting frame C2 of the case-unloading mechanism (one of the guide box guard plates is fixed on the lifting frame C2 of the case-unloading mechanism, and the other guide box guard plate is fixed on the longitudinal sliding seat C9. This guide box guard plate C25 is also located above the third conveyor belt B23 of the carton). A plurality of windows C26 are opened on the guide box guard plate, and swingable retaining plates C27 are rotatably hinged in the plurality of windows. Each retaining plate is fixedly connected to a turning arm C28, and each turning arm is hinged to a turning push rod C29. The turning push rod C29 is connected to the free end of the telescopic rod of a retaining box telescopic cylinder C30 (which can also be an electric push rod). The cylinder body of the retaining box telescopic cylinder is connected to the guide box guard plate C25. Under the action of the retaining box telescopic cylinder C30, the turning push rod C29 moves horizontally (in the X direction shown in the figure), and then drives the turning arm C28 and the retaining plate C27 to swing. The swing of the retaining plate C27 has two positions. One position is to swing into the window C26 without affecting the progress of the carton along the conveyor belt, and the other position is to swing out of the window C26 to block the progress of the carton on the conveyor belt.

[0062] The rice bag lifting and moving mechanism D includes a first frame D1 fixedly provided on the frame 1, a first horizontal sliding seat D2 slidably connected to the first frame D1, and a first vertical frame D3 fixedly provided on the first horizontal sliding seat D2. The first vertical frame D3 is connected with a first vertical sliding seat D4 in a lifting and sliding manner. A plurality of suction cup assemblies D5 capable of grasping and transferring the rice bags in the rice bag conveying mechanism to the cartons in the carton conveying mechanism are connected to the first vertical sliding seat D4. Four groups are shown in the figure as an example. The above-mentioned first horizontal sliding seat D2 can slide along the Y direction shown in the figure, and the first vertical sliding seat D4 can slide along the Z direction shown in the figure.

[0063] On the first frame D1, there are second synchronous belt pulleys D23 arranged in parallel at intervals. A second synchronous belt D24 is connected between the two second synchronous belt pulleys D23. One of the two second synchronous belt pulleys D24 is directly driven or indirectly driven (driven by a motor through a speed reducer or a belt pulley mechanism) by a second synchronous belt motor D25 to rotate. A first horizontal slide D2 is fixedly connected to the second synchronous belt. Through the action of the second synchronous belt motor D25, the first horizontal slide D2 slides along the Y direction shown in the figure (the first frame D1 has a guide rail for supporting the sliding of the first horizontal slide D2).

[0064] On the first vertical frame D3, there are third synchronous belt pulleys D26 arranged in parallel at intervals. A third synchronous belt D27 is connected between the two third synchronous belt pulleys D26. One of the two third synchronous belt pulleys is driven by a third synchronous belt motor D28 to rotate. A first vertical slide D4 is fixedly connected to the third synchronous belt. Through the action of the third synchronous belt motor D28, the first vertical slide D4 slides along the Z direction shown in the figure (the first vertical frame D3 has a guide rail for supporting the sliding of the first vertical slide D4).

[0065] A first seat plate D6 is fixedly connected to the above-mentioned first vertical slide D4. A first seat plate guide rail D7 is provided on the first seat plate D6. A first cross beam D8 is slidably connected to the first seat plate guide rail D7. A first horizontal telescopic cylinder D9 is provided between the first cross beam D8 and the first seat plate D6 to drive the horizontal movement of the first cross beam D8 (the X direction shown in the figure. The transfer of the rice bag and the carton in the case of misalignment in the X direction is realized by the movement of the first cross beam D8 in the X direction). A number of groups of rotating shafts D10 (taking 4 groups as an example in the figure) are rotatably connected to the first cross beam D8. The lower end of the rotating shaft is connected with the above-mentioned suction cup assembly D5. The negative pressure pipeline of the suction cup assembly is connected in series with a solenoid valve D11 located on the first cross beam to control the suction and release of the suction cup D12.

[0066] Specifically, four rotating shafts D10 are rotatably connected to the bottom surface of the first cross beam D8. The upper ends of the rotating shafts penetrate into the first cross beam and are fixedly connected with first synchronous belt pulleys D13. A first synchronous belt motor D14 is fixedly connected to the middle of the bottom surface of the first cross beam. The output shaft of the first synchronous belt motor D14 extends into the first cross beam and is fixedly connected with two coaxially arranged second synchronous belt pulleys D15. The second synchronous belt pulleys D15 are connected with the first synchronous belt pulleys D13 through a synchronous belt. The first synchronous belt pulleys on the two rotating shafts on the same side of the first synchronous belt motor D14 are connected through a synchronous belt. When the output shaft of the first synchronous belt motor rotates, it drives the four rotating shafts and the suction cup assembly to rotate synchronously, so as to realize the synchronous rotation of each rice bag adsorbed by the suction cup and meet the need for the rice bag to turn during the transfer process.

[0067] Among them, the suction cup assembly D5 is fixed to the lower end of the cylindrical cantilever D16, and the upper end of the cylindrical cantilever D16 is fixedly connected to the lower end of the rotating shaft D10. The cylindrical cantilever is a hollow cylindrical square tube, and hollowing holes D17 are provided on the side walls of the cylindrical square tube, through which the weight can be reduced.

[0068] The above-mentioned suction cup assembly D5 includes a suction cup tube D18 connected to a negative pressure pipeline (which can be a plastic hose, omitted in the figure) and a suction cup D12 integrally connected to the suction cup tube. A horizontally arranged mounting plate D19 is fixedly provided at the lower part of the cylindrical cantilever. The outer periphery of the suction cup tube has an external thread and its upper part passes through a perforation on the mounting plate. The upper and lower parts of the suction cup tube passing through the mounting plate are locked with nuts D20. Multiple suction cup tubes D18 and suction cups D12 can be installed through the mounting plate D19 and multiple perforations thereon, and the locking with nuts D20 is stable and reliable.

[0069] Two first support plates D21 are arranged at intervals on the above-mentioned first base plate D6, and the cylinder body of the first horizontal telescopic cylinder D9 is fixedly arranged between the two first support plates D21. The free end of the telescopic rod of the first horizontal telescopic cylinder D9 is fixedly connected to a second support plate D22 on the first cross beam D8. Through the action of the first horizontal telescopic cylinder D9, the first cross beam D8 can move relative to the first base plate in the X direction.

[0070] Among them, the carton conveying mechanism B includes a carton first conveyor belt B1, a carton second conveyor belt B2 and a carton third conveyor belt B23 arranged adjacent to each other. A hollow channel B3 is provided between the carton first conveyor belt and the carton second conveyor belt for arranging a set of first chain conveying mechanisms B4. A hollow channel is provided in the middle of the carton third conveyor belt for arranging a second chain conveying mechanism B24. Both the first chain conveying mechanism B4 and the second chain conveying mechanism B24 include a driving sprocket B5, a driven sprocket B6 and a chain B7 wound around the driving sprocket and the driven sprocket. The driving sprocket B5 of the first chain conveying mechanism is close to the output end of the second conveyor belt B2, and the driven sprocket B6 of the first chain conveying mechanism is close to the input end of the first conveyor belt B1. The driving sprocket and the driven sprocket of the second chain conveying mechanism are respectively arranged at the output end and the input end of the carton third conveyor belt. Carton pushing plates B8 are fixedly arranged at intervals on the chain; through the operation of the chain (the driving sprocket B5 driven by a motor drives the chain to work), the carton pushing plates B8 push the cartons forward.

[0071] During operation, each cardboard box is successively conveyed from the first conveyor belt to the second conveyor belt through the first chain conveyor mechanism and the cardboard box pusher plate thereon. When a certain number of cardboard boxes (four cardboard boxes are taken as an example in this application) are assembled on the second conveyor belt, the first chain conveyor mechanism, the second conveyor belt, the third conveyor belt, and the second chain conveyor mechanism and the cardboard box pusher plate thereon act synchronously (equivalent to using the second conveyor belt as a buffer zone for collecting multiple cardboard boxes. After a certain number of cardboard boxes are collected on the second conveyor belt, they are uniformly conveyed into the third conveyor belt, and the third conveyor belt serves as the packaging station for rice bags). This realizes the unified entry of the cardboard boxes on the second conveyor belt into the third conveyor belt, greatly saving the efficiency of the existing method that requires waiting for all cardboard boxes to reach the third conveyor belt one by one before starting the manipulator (the rice bag lifting and moving mechanism D in this application) to perform the rice bag packaging work.

[0072] For reasonable design, the above-mentioned first conveyor belt for cardboard boxes, the second conveyor belt for cardboard boxes, and the third conveyor belt for cardboard boxes are all provided with a conveyor belt driving shaft B9 and a conveyor belt driven shaft B10. One end of the conveyor belt driving shaft extends out and is fixedly connected with a conveyor belt driving sprocket B11, and the conveyor belt driving sprocket B11 is connected with the sprocket on the motor output shaft through a chain; the rotating shaft of the driving sprocket B5 extends out and is fixedly connected with a cardboard box conveying mechanism synchronous pulley B12, and the cardboard box conveying mechanism synchronous pulley B12 is connected with the synchronous pulley B25 on the motor output shaft through a synchronous belt.

[0073] To adapt to different cardboard boxes, a cardboard box fixed guardrail B13 is provided on the first side above the first conveyor belt and the second conveyor belt for cardboard boxes, and a telescopic cardboard box guardrail B14 is provided on the second side above the first conveyor belt and the second conveyor belt for cardboard boxes, so as to facilitate adjusting the distance between the two guardrails to adapt to the cardboard box size. The telescopic cardboard box guardrail B14 can be driven to expand and contract by a cylinder, an electric push rod, etc. The following is the specific structure of the telescopic cardboard box guardrail B14 in this application.

[0074] The first end of the telescopic cardboard box guardrail B14 is rotatably connected to the cardboard box conveyor belt frame B16 through a vertical rod B15, and the second end of the telescopic cardboard box guardrail B14 is provided with a guardrail adjusting mechanism B17; the guardrail adjusting mechanism B17 includes a first stepping motor B18 provided on the cardboard box conveyor belt frame and a cardboard box guardrail adjusting screw B19 driven by the first stepping motor to work. A cardboard box guardrail support rod mounting seat B20 is threadedly connected to the cardboard box guardrail adjusting screw B19. A cardboard box guardrail support rod B21 is provided on the cardboard box guardrail support rod mounting seat. The cardboard box guardrail support rod B21 is connected to the second end of the telescopic cardboard box guardrail. When the first stepping motor B18 works, it drives the cardboard box guardrail adjusting screw B19 to rotate, and then drives the movement of the cardboard box guardrail support rod mounting seat B20, the cardboard box guardrail support rod B21, and the second end of the telescopic cardboard box guardrail B14 (in the Y direction shown in the figure), realizing the limiting of the side of the cardboard box.

[0075] To ensure the stable and reliable movement of the carton guardrail support rod mounting seat B20, etc., a carton guardrail adjustment guide rod B22 is installed on the above-mentioned carton conveyor belt frame B16, and the carton guardrail support rod mounting seat B20 is slidably connected to the carton guardrail adjustment guide rod B22.

[0076] Among them, the rice bag conveying mechanism A includes multiple groups of rice bag conveyor belts A1 that are arranged close to each other in sequence and operate independently. Fixed rice bag guardrails A2 and retractable rice bag guardrails A3 are respectively provided on both sides above the rice bag conveyor belts to facilitate adjusting the distance between the two guardrails to adapt to the size of the rice bags.

[0077] Both ends of the retractable rice bag guardrail A3 are respectively connected to two groups of rice bag guardrail adjustment mechanisms A4. Among them, the rice bag guardrail adjustment mechanism A4 includes a rice bag guardrail adjustment screw A6 provided on the rice bag conveyor belt frame A5 and a rice bag guardrail support rod mounting seat A7 that is threadedly connected to the rice bag guardrail adjustment screw. A rice bag guardrail support rod A8 is provided on the rice bag guardrail support rod mounting seat A7. The rice bag guardrail support rod A8 is connected to both ends of the retractable rice bag guardrail. A guardrail adjustment synchronous pulley A9 is provided at the end of the rice bag guardrail adjustment screw A6. A synchronous belt is wound around between the two guardrail adjustment synchronous pulleys. One of the rice bag guardrail adjustment screws is driven by a second stepping motor A10 to work. A rice bag guardrail adjustment guide rod A11 is installed on the rice bag conveyor belt frame A5. The rice bag guardrail support rod mounting seat A7 is slidably connected to the rice bag guardrail adjustment guide rod A11. When the second stepping motor A10 works, the two rice bag guardrail adjustment screws A6 rotate synchronously through the synchronous belt and the guardrail adjustment synchronous pulley A9, and then drive the rice bag guardrail support rod mounting seat A7, the rice bag guardrail support rod A8, and both ends of the retractable rice bag guardrail A to move synchronously along the Y direction shown in the figure, so as to adjust to the needs of different rice bag sizes.

[0078] When the rice bag packing machine of the present utility model works, the rice bags are input by the rice bag conveying mechanism, and the cartons are input by the carton conveying mechanism. Then, through the carton unpacking mechanism, it is ensured that each turning plate of each carton is in an open state. Finally, the rice bags are grabbed and transferred from the rice bag conveying mechanism to the cartons on the carton unpacking mechanism by the rice bag lifting and moving mechanism. After completion, the cartons filled with rice bags are output in the carton conveying mechanism.

[0079] The rice bag packing machine of the present utility model is provided with a number of unpacking plates that rotate with the horizontal axes on both the first horizontal axis and the second horizontal axis. The unpacking plates include side unpacking plates for keeping the side turning plates of the cartons in an open state and front unpacking plates and rear unpacking plates for keeping the front and rear turning plates of the cartons in an open state, so as to realize the linkage action of each side unpacking plate with the front unpacking plate and the rear unpacking plate, thereby reducing the problem of inconsistent action responses of the existing unpacking plates and being beneficial to improving work efficiency.

[0080] The above are only the preferred embodiments of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.

Claims

1. A rice packaging machine, characterized in that: It includes a frame, a rice bag conveying mechanism, a carton conveying mechanism, a carton unpacking mechanism, and a rice bag lifting and moving mechanism arranged in the frame. The carton unpacking mechanism includes a number of unpacking plates capable of keeping the turning plates of the carton in an open state. Among them, the carton unpacking mechanism includes two groups of unpacking mechanism lifting electric push rods connected to the frame and an unpacking mechanism lifting frame connected to the free ends of the unpacking mechanism lifting electric push rods. There are lifting frame guide rails on the frame for guiding the vertical sliding of the unpacking mechanism lifting frame. On the first side and the second side of the unpacking mechanism lifting frame, a first horizontal shaft and a second horizontal shaft that can both rotate are arranged in parallel. A number of groups of unpacking plates that rotate with the horizontal shafts are arranged on both the first horizontal shaft and the second horizontal shaft. The unpacking plates include side unpacking plates for keeping the side turning plates of the carton in an open state, and front unpacking plates and rear unpacking plates for keeping the front and rear turning plates of the carton in an open state.

2. The rice packaging box machine according to claim 1, wherein: The rice bag lifting and moving mechanism includes a first frame fixedly arranged on the frame, a first horizontal sliding seat slidably connected to the first frame, and a first vertical frame fixedly arranged on the first horizontal sliding seat. The first vertical frame is connected with a first vertical sliding seat in a lifting and sliding manner. A number of groups of suction cup assemblies are connected to the first vertical sliding seat and can grab and transfer the rice bags in the rice bag conveying mechanism to the cartons in the carton conveying mechanism.

3. The rice packing box machine according to claim 2, characterized in that: A first seat plate is fixedly connected to the first vertical sliding seat. A first seat plate guide rail is arranged on the first seat plate. A first cross beam is slidably connected to the first seat plate guide rail. A first horizontal telescopic cylinder is arranged between the first cross beam and the first seat plate to drive the horizontal movement of the first cross beam. A number of groups of rotating shafts are rotatably connected to the first cross beam. The lower ends of the rotating shafts are connected with the above-mentioned number of groups of suction cup assemblies. The negative pressure pipelines of the suction cup assemblies are connected in series with solenoid valves located on the first cross beam to control the suction and release of the suction cups.

4. The rice packing box machine according to claim 3, characterized in that: Four rotating shafts are rotatably connected to the bottom surface of the first cross beam. The upper ends of the rotating shafts penetrate into the first cross beam and are fixedly connected with first synchronous belt wheels. A first synchronous belt motor is fixedly connected to the middle of the bottom surface of the first cross beam. The output shaft of the first synchronous belt motor extends into the first cross beam and is fixedly connected with two coaxially arranged second synchronous belt wheels. The second synchronous belt wheels are connected to the first synchronous belt wheels through synchronous belts. The first synchronous belt wheels on the two rotating shafts on the same side of the first synchronous belt motor are connected through a first synchronous belt. When the output shaft of the first synchronous belt motor rotates, it drives the four rotating shafts and the suction cup assemblies to rotate synchronously to realize the rotation of the rice bags. The suction cup assemblies are fixed on the lower ends of cylindrical cantilevers. The upper ends of the cylindrical cantilevers are fixedly connected to the lower ends of the rotating shafts. The cylindrical cantilevers are hollow cylindrical square pipes, and hollow holes are arranged on the side walls of the cylindrical square pipes.

5. The rice packing box machine according to claim 4, characterized in that: The suction cup assembly includes a suction cup tube connected to a negative pressure pipeline and a suction cup integrally formed with the suction cup tube. A horizontally arranged mounting plate is fixedly provided at the lower part of the cylindrical cantilever. The outer periphery of the suction cup tube has an external thread and its upper part passes through a through hole on the mounting plate. The upper and lower parts of the suction cup tube passing through the mounting plate are locked with nuts. Two first support plates are arranged at intervals on the first seat plate. The cylinder body of the first horizontal telescopic cylinder is fixedly arranged between the two first support plates. The free end of the telescopic rod of the first horizontal telescopic cylinder is fixedly connected to a second support plate on the first cross beam. Second synchronous belt wheels are arranged in parallel and at intervals on the first frame. A second synchronous belt is connected between the two second synchronous belt wheels. One of the two second synchronous belt wheels is driven to rotate by a second synchronous belt motor. The first horizontal sliding seat is fixedly connected to the second synchronous belt. Third synchronous belt wheels are arranged in parallel and at intervals on the first vertical frame. A third synchronous belt is connected between the two third synchronous belt wheels. One of the two third synchronous belt wheels is driven to rotate by a third synchronous belt motor. The first vertical sliding seat is fixedly connected to the third synchronous belt.

6. The rice packing box machine according to claim 1, characterized in that: A longitudinal sliding seat is provided on the first side of the lifting frame of the case-unloading mechanism. The first horizontal shaft is rotatably hinged on the longitudinal sliding seat. The longitudinal sliding seat is slidably connected to a longitudinal guide rail on the lifting frame of the case-unloading mechanism. The longitudinal sliding of the longitudinal sliding seat is driven by a first longitudinal cylinder. A swing cylinder is connected to the longitudinal sliding seat. The free end of the telescopic rod of the swing cylinder is fixedly connected to the first horizontal shaft through a swing arm, so as to realize the rotation of the first horizontal shaft under the action of the swing cylinder. A plurality of groups of side case-unloading plates are fixedly provided on the first horizontal shaft.

7. The rice packing box machine according to claim 6, characterized in that: The front case-unloading plate is fixedly connected to the first case-unloading longitudinal shaft. The first case-unloading longitudinal shaft is rotatably connected to a first case-unloading longitudinal shaft bushing. The first case-unloading longitudinal shaft bushing is connected to the longitudinal sliding seat. The end of the first case-unloading longitudinal shaft is connected to the first horizontal shaft through a universal joint, so as to drive the first case-unloading longitudinal shaft and the front case-unloading plate to rotate through the universal joint when the first horizontal shaft rotates, so that the front flip plate of the carton is in an open state.

8. The rice packing box machine according to claim 7, characterized in that: A transverse sliding seat capable of transverse movement is provided on the lifting frame of the case-unloading mechanism. The transverse sliding seat is slidably connected to a transverse guide rail on the lifting frame of the case-unloading mechanism. The transverse sliding of the transverse sliding seat is driven by a first transverse cylinder. The second horizontal shaft is rotatably hinged on the transverse sliding seat. A rotary cylinder capable of driving the second horizontal shaft to rotate is provided on the transverse sliding seat. A plurality of groups of side case-unloading plates are provided on the second horizontal shaft.

9. The rice packing box machine according to claim 8, characterized in that: The rear case-unloading plate is fixedly connected to the second case-unloading longitudinal shaft. The second case-unloading longitudinal shaft is rotatably connected to a second case-unloading longitudinal shaft bushing. The second case-unloading longitudinal shaft bushing is connected to the transverse sliding seat. The end of the second case-unloading longitudinal shaft is connected to the second horizontal shaft through a universal joint, so as to drive the second case-unloading longitudinal shaft and the rear case-unloading plate to rotate through the universal joint when the second horizontal shaft rotates, so that the rear flip plate of the carton is in an open state. The universal joint includes two C-shaped blocks and a connecting block connected between the two C-shaped blocks. The first end of the connecting block is hinged to one C-shaped block through a first pin shaft, and the second end of the connecting block is fixedly connected to the other C-shaped block.

10. The rice packing box machine according to claim 9, characterized in that: Guide box guard plates are provided below the first horizontal axis and the second horizontal axis on the lifting frame of the box-prying mechanism. A plurality of windows are opened on the guide box guard plates, and swingable box-blocking plates are rotatably hinged in the plurality of windows. Each box-blocking plate is fixedly connected with a turning arm, and each turning arm is hinged to a turning push rod. The turning push rod is connected to the free end of the telescopic rod of a box-blocking telescopic cylinder, and the cylinder body of the box-blocking telescopic cylinder is connected to the guide box guard plate.

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