Multi-material simultaneous filling device of back sealing packaging machine

Abstract

The utility model relates to the technical field of filling devices, in particular to a multi-material simultaneous filling device of a back sealing packaging machine, which is characterized in that various materials are respectively discharged by starting a feeding mechanism, and a bag opening mechanism is respectively rotated by starting a rotating mechanism; the feeding mechanism, the bag opening mechanism and the rotating mechanism are matched to fill various materials at the same time, the sealing mechanism is started to seal the filled back seal package, the phenomenon that the materials are scattered in the discharging process of the back seal package is prevented, and the practicability of the equipment is improved; comprising a bag supply mechanism; the automatic packaging machine further comprises a feeding mechanism, a bag opening mechanism, a rotating mechanism, a sealing mechanism and a discharging mechanism, the bag feeding mechanism is installed in front of the bag opening mechanism, the feeding mechanism is located on the upper portion of the bag opening mechanism, the bag opening mechanism is installed on the rotating mechanism, the sealing mechanism is installed on the feeding mechanism, and the discharging mechanism is installed on the rotating mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of filling devices, in particular to a multi-material simultaneous filling device for a back-sealing packaging machine. Background Technique

[0002] A back-sealing packaging machine is a mechanical device widely used in the packaging industry, mainly used for producing various packaging products such as back-sealed bags, three-side-sealed bags, and stand-up bags. It seals and heats the packaging material through specific processes and technologies to bond the packaging materials together, thus completing the packaging process; the back-sealing packaging machine is an efficient, precise, and flexible packaging device, which has a wide range of applications in multiple industries.

[0003] For example, in a class of prior arts represented by the filling device disclosed in the utility model patent with the application number 202222641058.7, its main structure includes a machine case, a support frame, a conveyor belt, a driving roller, a metering pump, a material box, etc., and the filling of materials is realized through the cooperation of structures such as the machine case, the support frame, the conveyor belt, the driving roller, the metering pump, and the material box.

[0004] Traditional filling devices are relatively single, and it is difficult to simultaneously fill multiple materials, resulting in an increase in filling time. Moreover, when the filled materials are discharged by traditional filling devices, due to the vibration generated during the operation of the machine, the filled materials are likely to be scattered. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a multi-material simultaneous filling device for a back-sealing packaging machine, which discharges various materials by starting a feeding mechanism respectively, rotates a bag-supporting mechanism by starting a rotating mechanism respectively, and simultaneously fills various materials through the cooperation of the feeding mechanism, the bag-supporting mechanism, and the rotating mechanism. The back-sealed packaging after filling is sealed by starting a sealing mechanism to prevent the materials from being scattered during the discharging process, thereby improving the practicability of the device.

[0006] A multi-material simultaneous filling device for a back-sealing packaging machine of the present utility model includes a bag supply mechanism; it also includes a feeding mechanism, a bag supporting mechanism, a rotating mechanism, a sealing mechanism and a discharging mechanism. The bag supply mechanism is installed in front of the bag supporting mechanism, the feeding mechanism is located above the bag supporting mechanism, the bag supporting mechanism is installed on the rotating mechanism, the sealing mechanism is installed on the feeding mechanism, and the discharging mechanism is installed on the rotating mechanism; the back-sealing packaging is discharged by extending the bag supply mechanism, the back-sealing packaging bag is discharged to below the feeding mechanism by extending the bag supporting mechanism, and the back-sealing packaging is adsorbed by the bag supporting mechanism to open the back-sealing packaging. By starting the feeding mechanism, various materials are discharged respectively. By starting the rotating mechanism, the bag supporting mechanism is rotated respectively. Through the cooperation of the feeding mechanism, the bag supporting mechanism and the rotating mechanism, various materials are simultaneously filled. By starting the sealing mechanism, the back-sealing packaging after filling is sealed to prevent the materials from scattering during the discharging process. By extending the discharging mechanism, the sealed back-sealing packaging is discharged, improving the practicability of the equipment.

[0007] Preferably, the bag supply mechanism includes a bracket, a first cylinder, a first push plate and a feeding trough. A baffle is arranged at the left part of the top of the bracket. The left end of the first cylinder is installed at the right end of the baffle at the top of the bracket. The left end of the first push plate is installed on the right end of the first cylinder. The first push plate is located in the feeding trough. The bottom end of the feeding trough is installed at the top of the bracket; the bracket supports the first cylinder and the feeding trough respectively. By extending the first cylinder, the first push plate discharges the back-sealing packaging bag in the feeding trough, improving the practicability of the equipment.

[0008] Preferably, the feeding mechanism includes a first mounting frame, a plurality of connecting rods, a plurality of feeding barrels and a plurality of discharging hoppers. One ends of the plurality of connecting rods are respectively installed on the first mounting frame. The outer walls of the plurality of feeding barrels are respectively installed at the other ends of the plurality of connecting rods. The tops of the plurality of discharging hoppers are respectively installed at the bottom ends of the plurality of feeding barrels. Valves are respectively arranged at the lower parts of the plurality of discharging hoppers; the plurality of feeding barrels are respectively installed on the first mounting frame through the plurality of connecting rods. The materials in the plurality of feeding barrels are respectively discharged into the back-sealing packaging through the plurality of discharging hoppers, improving the practicability of the equipment.

[0009] Preferably, the bag-holding mechanism comprises a plurality of support plates, a plurality of fixed grooves, a plurality of second cylinders, a plurality of first suction cups, a plurality of first multi-stage electric cylinders, a plurality of third cylinders and a plurality of second suction cups, the plurality of support plates are respectively mounted on the rotating mechanism, the bottom ends of the plurality of fixed grooves are respectively mounted on the top ends of the plurality of support plates, and gravity sensors are provided on the plurality of fixed grooves, the fixed ends of the plurality of second cylinders are respectively mounted on the top ends of the plurality of support plates, the plurality of first suction cups are respectively mounted on the moving ends of the plurality of second cylinders, the rear ends of the plurality of first multi-stage electric cylinders are respectively mounted on the top ends of the plurality of first suction cups, and the fixed ends of the plurality of third cylinders are respectively mounted on the front ends of the plurality of first multi-stage electric cylinders The plurality of second suction cups are respectively mounted on the movable ends of the plurality of third cylinders; the plurality of support plates respectively support the plurality of fixed grooves, the plurality of second cylinders and the plurality of first multi-stage electric cylinders; the plurality of second suction cups are respectively made to reach the sealed packages by extending the plurality of first multi-stage electric cylinders; the plurality of back-sealed packages are respectively adsorbed by starting the plurality of second suction cups; the back-sealed packages are respectively placed in the plurality of fixed grooves by contracting the plurality of first multi-stage electric cylinders; the other side of the back-sealed packages are adsorbed by the plurality of first suction cups; the back-sealed packages are opened by contracting the plurality of third cylinders and the plurality of second cylinders, thereby improving the practicability of the equipment.

[0010] Preferably, the rotating mechanism includes a base, a first bearing, a rotating shaft and a motor, the bottom outer ring of the first bearing is mounted on the top of the base, the bottom end of the rotating shaft is mounted on the inner ring of the first bearing, the top end of the rotating shaft is mounted on the output end of the motor, and the motor is mounted on the bottom end of the first mounting frame; the rotating shaft is mounted on the base via the first bearing, and the rotating shaft is rotated by starting the motor, thereby improving the practicability of the equipment.

[0011] Preferably, the sealing mechanism includes a fourth cylinder, a second mounting bracket, multiple fifth cylinders and multiple heaters, the top end of the second mounting bracket is mounted on the bottom end of the fourth cylinder, the fixed ends of the multiple fifth cylinders are respectively mounted on the bottom ends of the second mounting bracket, and the multiple heaters are respectively mounted on the movable ends of the multiple fifth cylinders; the second mounting bracket is lowered by extending the fourth cylinder, and the multiple second mounting brackets respectively support the multiple fifth cylinders, and the multiple heaters are respectively started and the multiple fifth cylinders are respectively extended to seal the back-sealed packaging through the multiple heaters, thereby improving the practicability of the equipment.

[0012] Preferably, the discharge mechanism includes a second bearing, a second multi-stage electric cylinder and a second push plate, the inner ring of the second bearing is mounted on the first mounting frame, the left end of the second multi-stage electric cylinder is mounted on the outer ring of the second bearing, and the second push plate is mounted on the right end of the second multi-stage electric cylinder; by extending the second multi-stage electric cylinder, the packaged materials in multiple fixed grooves are discharged respectively through the second push plate, thereby improving the practicality of the equipment.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: the back-sealed package is discharged through the stretching bag supply mechanism, the back-sealed packaging bag is discharged to the lower part of the feeding mechanism through the stretching bag supporting mechanism, and the back-sealed package is adsorbed by the bag supporting mechanism to open the back-sealed package. By starting the feeding mechanism, various materials are discharged respectively. By starting the rotating mechanism, the bag supporting mechanism is rotated respectively. Through the cooperation of the feeding mechanism, the bag supporting mechanism and the rotating mechanism, various materials are filled simultaneously. By starting the sealing mechanism, the back-sealed package after filling is sealed to prevent the material from scattering during the discharging process. The sealed back-sealed package is discharged through the stretching discharging mechanism, improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the axonometric schematic diagram of the present utility model;

[0015] Figure 2 is the front elevation sectional view of the bag supply mechanism of the present utility model;

[0016] Figure 3 is the axonometric schematic diagram of the feeding mechanism of the present utility model;

[0017] Figure 4 is the axonometric schematic diagram of the bag supporting mechanism of the present utility model;

[0018] Figure 5 is the axonometric schematic diagram of the rotating mechanism of the present utility model;

[0019] Figure 6 is the axonometric schematic diagram of the sealing mechanism of the present utility model;

[0020] Figure 7 is the axonometric schematic diagram of the discharging mechanism of the present utility model.

[0021] Reference numerals in the drawings: 01, bag supply mechanism; 11, support; 12, first cylinder; 13, first push plate; 14, feeding trough; 02, feeding mechanism; 21, first mounting frame; 22, connecting rod; 23, feeding barrel; 24, discharging hopper;

[0022] 03, bag supporting mechanism; 31, support plate; 32, fixing groove; 33, second cylinder; 34, first suction cup; 35, first multi-stage electric cylinder; 36, third cylinder; 37, second suction cup; 04, rotating mechanism; 41, base; 42, first bearing; 43, rotating shaft; 44, motor; 05, sealing mechanism; 51, fourth cylinder; 52, second mounting frame; 53, fifth cylinder; 54, heater; 06, discharging mechanism; 61, second bearing; 62, second multi-stage electric cylinder; 63, second push plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant accompanying drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0024] Embodiment 1

[0025] As Figure 1 shown, a multi-material simultaneous filling device for a back-sealing packaging machine includes a bag supply mechanism 01; it also includes a feeding mechanism 02, a bag supporting mechanism 03, a rotating mechanism 04, a sealing mechanism 05 and a discharging mechanism 06. The bag supply mechanism 01 is installed in front of the bag supporting mechanism 03, the feeding mechanism 02 is located above the bag supporting mechanism 03, the bag supporting mechanism 03 is installed on the rotating mechanism 04, the sealing mechanism 05 is installed on the feeding mechanism 02, and the discharging mechanism 06 is installed on the rotating mechanism 04;

[0026] The back-sealing packaging is discharged by extending the bag supply mechanism 01, the back-sealing packaging bag is discharged below the feeding mechanism 02 by extending the bag supporting mechanism 03, and the back-sealing packaging is adsorbed by the bag supporting mechanism 03 to open the back-sealing packaging. By starting the feeding mechanism 02, various materials are discharged respectively. By starting the rotating mechanism 04, the bag supporting mechanism 03 is rotated respectively, and various materials are simultaneously filled through the cooperation of the feeding mechanism 02, the bag supporting mechanism 03 and the rotating mechanism 04. By starting the sealing mechanism 05, the filled back-sealing packaging is sealed to prevent material scattering during its discharging process. By extending the discharging mechanism 06, the sealed back-sealing packaging is discharged, improving the practicability of the equipment;

[0027] As Figure 2 shown, the bag supply mechanism 01 includes a bracket 11, a first cylinder 12, a first push plate 13 and a feeding trough 14. A baffle is provided at the left part of the top of the bracket 11. The left end of the first cylinder 12 is installed at the right end of the baffle at the top of the bracket 11. The left end of the first push plate 13 is installed on the right end of the first cylinder 12. The first push plate 13 is located in the feeding trough 14, and the bottom end of the feeding trough 14 is installed at the top of the bracket 11;

[0028] As Figure 3 shown, the feeding mechanism 02 includes a first mounting frame 21, a plurality of connecting rods 22, a plurality of feeding barrels 23 and a plurality of discharging hoppers 24. One ends of the plurality of connecting rods 22 are respectively installed on the first mounting frame 21. The outer walls of the plurality of feeding barrels 23 are respectively installed at the other ends of the plurality of connecting rods 22. The tops of the plurality of discharging hoppers 24 are respectively installed at the bottoms of the plurality of feeding barrels 23, and valves are respectively provided at the lower parts of the plurality of discharging hoppers 24;

[0029] As Figure 4As shown, the bag-holding mechanism 03 includes a plurality of support plates 31, a plurality of fixed grooves 32, a plurality of second cylinders 33, a plurality of first suction cups 34, a plurality of first multi-stage electric cylinders 35, a plurality of third cylinders 36 and a plurality of second suction cups 37, the plurality of support plates 31 are respectively mounted on the rotating mechanism 04, the bottom ends of the plurality of fixed grooves 32 are respectively mounted on the top ends of the plurality of support plates 31, and gravity sensors are provided on the plurality of fixed grooves 32, the fixed ends of the plurality of second cylinders 33 are respectively mounted on the top ends of the plurality of support plates 31, the plurality of first suction cups 34 are respectively mounted on the moving ends of the plurality of second cylinders 33, the rear ends of the plurality of first multi-stage electric cylinders 35 are respectively mounted on the top ends of the plurality of first suction cups 34, the fixed ends of the plurality of third cylinders 36 are respectively mounted on the front ends of the plurality of first multi-stage electric cylinders 35, and the rear ends of the plurality of second suction cups 37 are respectively mounted on the moving ends of the plurality of third cylinders 36;

[0030] like Figure 5 As shown, the rotating mechanism 04 includes a base 41, a first bearing 42, a rotating shaft 43 and a motor 44. The outer ring of the bottom end of the first bearing 42 is mounted on the top end of the base 41, the bottom end of the rotating shaft 43 is mounted on the inner ring of the first bearing 42, the top end of the rotating shaft 43 is mounted on the output end of the motor 44, and the motor 44 is mounted on the bottom end of the first mounting frame 21;

[0031] The bracket 11 supports the first cylinder 12 and the feed trough 14 respectively, and the first push plate 13 discharges the sealed packaging bag in the feed trough 14 by extending the first cylinder 12. The plurality of feed barrels 23 are respectively installed on the first mounting frame 21 through the plurality of connecting rods 22. The materials in the plurality of feed barrels 23 are respectively discharged into the back-sealed packaging through the plurality of discharge hoppers 24. The plurality of support plates 31 support the plurality of fixed grooves 32, the plurality of second cylinders 33 and the plurality of first multi-stage electric cylinders 35 respectively. The plurality of second cylinders 33 and the plurality of first multi-stage electric cylinders 35 are respectively extended to discharge the sealed packaging bag in the first mounting frame 21. The suction cup 37 reaches the sealed package, and the multiple back-sealed packages are adsorbed by respectively starting the multiple second suction cups 37, and the back-sealed packages are placed in the multiple fixed grooves 32 by respectively contracting the multiple first multi-stage electric cylinders 35. The other side of the back-sealed package is adsorbed by the multiple first suction cups 34, and the back-sealed package is opened by respectively contracting the multiple third cylinders 36 and the multiple second cylinders 33. The rotating shaft 43 is installed on the base 41 via the first bearing 42, and the rotating shaft 43 is rotated by starting the motor 44 to improve the practicability of the equipment.

[0032] Example 2

[0033] like Figure 6 and Figure 7As shown, on the basis of Example 1, it also includes a sealing mechanism 05 and a discharging mechanism 06, the sealing mechanism 05 includes a fourth cylinder 51, a second mounting frame 52, a plurality of fifth cylinders 53 and a plurality of heaters 54, the top end of the second mounting frame 52 is mounted on the bottom end of the fourth cylinder 51, the fixed ends of the plurality of fifth cylinders 53 are respectively mounted on the bottom ends of the second mounting frame 52, and the plurality of heaters 54 are respectively mounted on the moving ends of the plurality of fifth cylinders 53; the discharging mechanism 06 includes a second bearing 61, a second multi-stage electric cylinder 62 and a second push plate 63, the inner ring of the second bearing 61 is mounted on the first mounting frame 21, the left end of the second multi-stage electric cylinder 62 is mounted on the outer ring of the second bearing 61, and the second push plate 63 is mounted on the right end of the second multi-stage electric cylinder 62;

[0034] By extending the fourth cylinder 51, the second mounting frame 52 is lowered, and the multiple second mounting frames 52 respectively support the multiple fifth cylinders 53. By starting the multiple heaters 54 respectively, the multiple fifth cylinders 53 are respectively extended to seal the back-sealed packages through the multiple heaters 54. By extending the second multi-stage electric cylinder 62, the packaged materials in the multiple fixed grooves 32 are respectively discharged through the second push plate 63, thereby improving the practicability of the equipment.

[0035] like Figures 1 to 7 As shown, the utility model is a multi-material simultaneous filling device for a back-sealing packaging machine. When it is working, first, the bracket 11 supports the first cylinder 12 and the feeding trough 14 respectively, and the first push plate 13 discharges the sealed packaging bags in the feeding trough 14 by extending the first cylinder 12, and then the multiple feeding barrels 23 are respectively installed on the first mounting frame 21 through the multiple connecting rods 22, and the materials in the multiple feeding barrels 23 are respectively discharged into the back-sealed packaging through the multiple discharge hoppers 24, and then the multiple supporting plates 31 respectively support the multiple fixed grooves 32, the multiple second cylinders 33 and the multiple first multi-stage electric cylinders 35, and the multiple second suction cups 37 are respectively made to reach the sealed packaging by extending the multiple first multi-stage electric cylinders 35, and the multiple second suction cups 37 are respectively started to adsorb the multiple back-sealed packages, and the multiple first multi-stage electric cylinders are respectively contracted. The multi-stage electric cylinder 35 places the back-sealed package in multiple fixed grooves 32 respectively, and adsorbs the other side of the back-sealed package through multiple first suction cups 34. The back-sealed package is stretched open by contracting multiple third cylinders 36 and multiple second cylinders 33 respectively. Then, the rotating shaft 43 is installed on the base 41 through the first bearing 42, and the rotating shaft 43 is rotated by starting the motor 44. Then, the second mounting frame 52 is lowered by extending the fourth cylinder 51, and the multiple second mounting frames 52 support the multiple fifth cylinders 53 respectively. By starting multiple heaters 54 respectively, the multiple fifth cylinders 53 are extended respectively, and the back-sealed package is sealed through the multiple heaters 54 respectively. Finally, the packaged materials in the multiple fixed grooves 32 are discharged respectively through the second push plate 63 by extending the second multi-stage electric cylinder 62, thereby improving the practicality of the equipment.

[0036] The first suction cup 34, the second suction cup 37, the motor 44 and the heater 54 of the present utility model are purchased on the market. Those skilled in the industry only need to install and operate them according to the attached operation manuals, without the need for creative labor from those skilled in the art.

[0037] The main functions achieved by the present utility model are as follows: by starting the feeding mechanism 02 to discharge various materials respectively, by starting the rotating mechanism 04 to rotate the bag-supporting mechanism 03 respectively, through the cooperation of the feeding mechanism 02, the bag-supporting mechanism 03 and the rotating mechanism 04 to simultaneously fill various materials, and by starting the sealing mechanism 05 to seal the back-sealed package after filling, preventing the phenomenon of material scattering during its discharge process and improving the practicability of the equipment.

[0038] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A multi-material simultaneous filling device for a back-sealing packaging machine, comprising a bag supply mechanism (01); characterized in that, It also includes a feeding mechanism (02), a bag supporting mechanism (03), a rotating mechanism (04), a sealing mechanism (05) and a discharging mechanism (06). The bag feeding mechanism (01) is installed in front of the bag supporting mechanism (03), the feeding mechanism (02) is located above the bag supporting mechanism (03), the bag supporting mechanism (03) is installed on the rotating mechanism (04), the sealing mechanism (05) is installed on the feeding mechanism (02), and the discharging mechanism (06) is installed on the rotating mechanism (04).

2. The multi-material simultaneous filling device of a back-sealing packaging machine according to claim 1, wherein, The bag feeding mechanism (01) includes a bracket (11), a first cylinder (12), a first push plate (13) and a feeding trough (14). A baffle is provided at the left part of the top end of the bracket (11). The left end of the first cylinder (12) is installed at the right end of the baffle at the top end of the bracket (11). The left end of the first push plate (13) is installed at the right end of the first cylinder (12). The first push plate (13) is located inside the feeding trough (14). The bottom end of the feeding trough (14) is installed at the top end of the bracket (11).

3. The multi-material simultaneous filling device of a back-sealing packaging machine according to claim 1, wherein, The feeding mechanism (02) includes a first mounting frame (21), a plurality of connecting rods (22), a plurality of feeding barrels (23) and a plurality of discharging hoppers (24). One ends of the plurality of connecting rods (22) are respectively installed on the first mounting frame (21). The outer walls of the plurality of feeding barrels (23) are respectively installed at the other ends of the plurality of connecting rods (22). The top ends of the plurality of discharging hoppers (24) are respectively installed at the bottom ends of the plurality of feeding barrels (23). Valves are respectively provided at the lower parts of the plurality of discharging hoppers (24).

4. The multi-material simultaneous filling device of a back-sealing packaging machine according to claim 1, wherein, The bag supporting mechanism (03) includes a plurality of support plates (31), a plurality of fixing grooves (32), a plurality of second cylinders (33), a plurality of first suction cups (34), a plurality of first multi-stage electric cylinders (35), a plurality of third cylinders (36) and a plurality of second suction cups (37). The plurality of support plates (31) are respectively installed on the rotating mechanism (04). The bottom ends of the plurality of fixing grooves (32) are respectively installed at the top ends of the plurality of support plates (31), and gravity sensors are provided on the plurality of fixing grooves (32). The fixed ends of the plurality of second cylinders (33) are respectively installed at the top ends of the plurality of support plates (31). The plurality of first suction cups (34) are respectively installed on the moving ends of the plurality of second cylinders (33). The rear ends of the plurality of first multi-stage electric cylinders (35) are respectively installed at the top ends of the plurality of first suction cups (34). The fixed ends of the plurality of third cylinders (36) are respectively installed at the front ends of the plurality of first multi-stage electric cylinders (35). The rear ends of the plurality of second suction cups (37) are respectively installed on the moving ends of the plurality of third cylinders (36).

5. The multi-material simultaneous filling device of a back-sealing packaging machine according to claim 3, characterized in that, The rotating mechanism (04) includes a base (41), a first bearing (42), a rotating shaft (43) and a motor (44). The outer ring of the bottom end of the first bearing (42) is installed at the top end of the base (41). The bottom end of the rotating shaft (43) is installed in the inner ring of the first bearing (42). The top end of the rotating shaft (43) is installed at the output end of the motor (44). The motor (44) is installed at the bottom end of the first mounting frame (21).

6. The multi-material simultaneous filling device of a back-sealing packaging machine according to claim 1, wherein, The sealing mechanism (05) includes a fourth cylinder (51), a second mounting bracket (52), a plurality of fifth cylinders (53) and a plurality of heaters (54). The top end of the second mounting bracket (52) is mounted on the bottom end of the fourth cylinder (51). The fixed ends of the plurality of fifth cylinders (53) are respectively mounted on the bottom end of the second mounting bracket (52). The plurality of heaters (54) are respectively mounted on the moving ends of the plurality of fifth cylinders (53).

7. The multi-material simultaneous filling device of a back-sealing packaging machine according to claim 3, characterized in that, The discharging mechanism (06) includes a second bearing (61), a second multi-stage electric cylinder (62) and a second push plate (63). The inner ring of the second bearing (61) is mounted on the first mounting bracket (21). The left end of the second multi-stage electric cylinder (62) is mounted on the outer ring of the second bearing (61). The second push plate (63) is mounted on the right end of the second multi-stage electric cylinder (62).

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