Four-sided carton wrapping equipment

Abstract

The present invention provides a four-sided packaging device for paper boxes, which relates to the field of paper box edge wrapping devices. This four-sided packaging device for paper boxes includes a fixed frame, with protective plates fixedly connected to both the front and rear ends of the fixed frame. A receiving table is fixedly connected to the left end of the fixed frame, and a first servo motor is fixedly connected to the middle and lower part of the front side of the receiving table. The front driving end of the first servo motor is connected to a fixed roller through a second driving sprocket assembly, and the fixed roller is rotatably connected to the upper middle right side of the fixed frame. The folding of the paper box can be achieved through elastic pieces, and at the same time, the traditional single elastic plate is changed to uniformly distributed elastic pieces, so that the elastic pieces can adapt to materials of different shapes during actual use, thereby enabling the folding of special-shaped paper boxes. At the same time, the pressing cylinder fixed on the first fixed frame can press the material and the already wrapped edge after the material passes through the guiding roller, preventing the material from warping, so that it can achieve flawless folding of the paper box.

Description

Technical Field

[0001] The present invention relates to the field of carton edge - wrapping equipment, specifically to a four - side wrapping equipment for cartons. Background Art

[0002] A carton is a three - dimensional shape, which is composed of a polyhedron formed by the movement, stacking, folding, and enclosing of several constituent faces. Paper product packaging is the type with the largest consumption in industrial product packaging. Cartons are the main form of transportation packaging, while cartons are widely used as sales packaging for various products such as food, medicine, and electronics. With the change of transportation methods and the transformation of sales methods, the styles of cartons and cartons are becoming increasingly diverse. Almost every new type of non - standard carton is accompanied by a set of automated equipment. When performing carton edge - wrapping, a four - side wrapping equipment for cartons is often used.

[0003] During the use of the four - side wrapping equipment for cartons, there are usually two drawbacks in the currently available four - side wrapping equipment for cartons on the market. One is that the existing four - side wrapping equipment for cartons often cannot perform edge - folding for special - shaped cartons, and the other is that the existing four - side wrapping equipment for cartons often cannot perform edge - folding for cartons of different specifications. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a four - side wrapping equipment for cartons, which solves the problems that the existing four - side wrapping equipment for cartons often cannot perform edge - folding for special - shaped cartons and cannot perform edge - folding for cartons of different specifications.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A four - side wrapping equipment for cartons includes a fixed frame. Protective plates are fixedly connected to both the front and rear ends of the fixed frame. A receiving table is fixedly connected to the left end of the fixed frame. A servo - motor 1 is fixedly connected to the middle - lower part of the front side of the receiving table. The front driving end of the servo - motor 1 is connected to a fixed roller through a driving sprocket assembly 2. The fixed roller is rotatably connected to the upper - middle part on the right side of the fixed frame, and both the front and rear ends of the fixed roller are rotatably connected to the fixed frame through bearings. The fixed roller is connected to a feeding roller through a transmission sprocket assembly 3. The feeding rollers are all rotatably connected to the upper - right part of the fixed frame, and the feeding rollers are connected by a helical gear 3. The helical gear 3 is fixedly connected to the outer periphery of the front end of the feeding roller.

[0006] Preferably, evenly - distributed conveying belts 1 are arranged on the upper - right part of the fixed frame. The conveying belts 1 are all arranged on the outer periphery of a fixed shaft 1. The fixed shafts 1 are connected by a transmission sprocket assembly 2. The rear end of the left - hand fixed shaft 1 is fixedly connected to an adjusting handwheel 2. Both the front and rear sides of the middle part of the fixed roller are connected to a transmission box through a driving sprocket assembly 1. The transmission boxes are all arranged on the right side of a guiding roller. The guiding rollers are all rotatably connected to the fixed frame through bearings.

[0007] Preferably, the guiding rollers are all arranged in the middle of the fixed frame. Helical gear one is fixedly connected to the front part of the outer periphery of each guiding roller, and the helical gear ones are meshed with each other. The front part of the lower guiding roller is connected to a fixed roller through connecting sprocket assembly one. The fixed roller is arranged behind the driving sprocket assembly three, and the driving sprocket assembly three is arranged behind the driving sprocket assembly two. Connecting sprocket assembly two is arranged at the left part of the front side of the connecting sprocket assembly one. The guiding roller is connected to a fixed shaft two through the connecting sprocket assembly two.

[0008] Preferably, the fixed shaft two is rotatably connected to the upper left side of the fixed frame through a bearing. The front part of the right fixed shaft two is connected to a blanking roller through connecting sprocket assembly three. The front and rear ends of the blanking roller are rotatably connected to the upper left end of the fixed frame through bearings. The blanking rollers are all arranged on the left side of the fixed shaft two. Helical gear two is fixedly connected to the front part of the outer periphery of both the blanking roller and the fixed shaft two, and the upper and lower helical gear twos are meshed with each other. The helical gear twos are all arranged behind the connecting sprocket assembly three. The fixed shaft twos are connected through the driving sprocket assembly one, and the driving sprocket assembly one is at the rear part of the fixed shaft two.

[0009] Preferably, a rotating rod is arranged on the right side of the driving sprocket assembly one. The top end of the rotating rod is fixedly connected to an adjusting handwheel one. The rotating rod is rotatably connected to the rear left side of the fixed frame. A driving bevel gear is fixedly connected to the middle part of the outer periphery of the rotating rod. The driving bevel gear is meshed with a driven bevel gear at the front side. The driven bevel gear is fixedly connected to the outer periphery of the rotating shaft. The rotating shafts are all rotatably connected to the upper left side of the fixed frame through bearings. The rotating shafts are connected through a synchronous sprocket assembly one, and a fixed frame one is fixedly connected to the middle part of each rotating shaft.

[0010] Preferably, fixed frames two are fixedly connected to the front and rear sides of the middle part of the outer periphery of the rotating shaft. Uniformly distributed pressing wheels are fixedly connected to the lower part of the side where the fixed frames two are close to each other. Uniformly distributed guiding wheels are fixedly connected to the middle part of the fixed frame one. An induction cylinder is arranged at the left side of the middle part of the fixed frame one. A pressing cylinder is fixedly connected to the right end of the outer periphery of the fixed frame one. The pressing cylinder is arranged at the left side of the middle part of the guiding roller. Folding belts are arranged on the side where the transmission boxes are close to each other. The transmission boxes are all connected to a fixed frame three through the folding belts.

[0011] Preferably, the fixed frame threes are all slidably connected to the front and rear sides of the middle part of the outer periphery of the fixed shaft one. Feeding belts one are arranged on the side where the folding belts are close to each other. The fixed frame threes are all connected to a transmission box through the feeding belts one. Pressing paper wheels are uniformly distributed on the upper side of the feeding belts one. Uniformly distributed transmission rollers are arranged between the blanking roller and the guiding roller, and the transmission rollers are connected through a feeding belt two.

[0012] Preferably, the guide wheel and the foot hitting wheel are both arranged on the upper side of the second conveying belt. The right transmission roller is connected to the second servo motor through a transmission belt. The second servo motor is fixedly connected to the middle left side of the rear end of the fixed frame through the second mounting frame. A plurality of evenly distributed elastic pieces are mounted on the upper left end of the fixed frame through the first mounting frame. The elastic pieces are all arranged on the right side of the blanking roller.

[0013] Working principle: The first servo motor can drive the fixed roller to rotate by means of the second driving sprocket assembly, and then drive the feeding roller to rotate through the third transmission sprocket assembly, so that the feeding of the material can be realized through the feeding roller. At the same time, the fixed roller can drive the transmission gear inside the transmission box through the first driving sprocket assembly, thereby driving the first conveying belt to work. In this way, during use, the first conveying belt and the paper pressing wheel on the upper side of the first conveying belt can guide and limit the material. During the conveying process, the folding belt can be driven to work through the transmission box. The folding belt is set in a flipped state, and the folding belt can perform folding and edge wrapping operations on the material. At the same time, by using the second adjusting handwheel and the second transmission sprocket assembly, the position of the third fixed frame on the first fixed shaft can be adjusted, so as to realize the folding of cartons of different specifications. At the same time, the elastic pieces can be installed on the fixed frame through the first mounting frame on the upper left side of the fixed frame. The elastic pieces can realize the folding of the carton. At the same time, the traditional single elastic plate is changed to evenly distributed elastic pieces, so that the elastic pieces can adapt to materials of different shapes during actual use, thereby realizing the folding of special-shaped cartons. At the same time, the pressing cylinder fixed on the first fixed frame can press the material and the already wrapped edge after the material passes through the guide roller, preventing the material from warping, so as to facilitate subsequent edge wrapping, and enabling the seamless folding of the carton.

[0014] The present invention provides a four-sided carton equipment, which has the following beneficial effects:

[0015] 1. In the present invention, the elastic pieces can be installed on the fixed frame through the first mounting frame on the upper left side of the fixed frame. The elastic pieces can realize the folding of the carton. At the same time, the traditional single elastic plate is changed to evenly distributed elastic pieces, so that the elastic pieces can adapt to materials of different shapes during actual use, thereby realizing the folding of special-shaped cartons. At the same time, the pressing cylinder fixed on the first fixed frame can press the material and the already wrapped edge after the material passes through the guide roller, preventing the material from warping, so as to facilitate subsequent edge wrapping, and enabling the seamless folding of the carton.

[0016] 2. Through the first servo motor, the present invention can drive the fixed roller to rotate by means of the second driving sprocket assembly, and then drive the feeding roller to rotate by means of the third transmission sprocket assembly, so that the feeding of materials can be realized through the feeding roller. At the same time, the fixed roller can drive the transmission gear inside the transmission box to transmit through the first driving sprocket assembly, thereby driving the first conveying belt to work, so that the materials can be guided and limited by the first conveying belt and the paper pressing wheel on the upper side of the first conveying belt during use. During the conveying process, the folding belt can be driven to work by the transmission box. The folding belt is set in a flipped state, and the folding and edge wrapping of the materials can be carried out through the folding belt. At the same time, the position of the fixed frame three on the first fixed shaft can be adjusted by using the second adjusting handwheel and the second transmission sprocket assembly, so as to realize the folding of cartons of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of the present invention;

[0018] Figure 2 is a top view of the present invention;

[0019] Figure 3 is a front perspective view of the present invention;

[0020] Figure 4 is a rear perspective view of the present invention;

[0021] Figure 5 is a side view of the present invention;

[0022] Figure 6 is a front view of the present invention;

[0023] Figure 7 is Figure 5 an enlarged view of part A in

[0024] Among them, 1. protective plate; 2. material receiving table; 3. blanking roller; 4. elastic sheet; 5. adjusting handwheel 1; 6. fixing frame 1; 7. guiding wheel; 8. conveying belt 2; 9. hemming belt; 10. paper pressing wheel; 11. feeding roller; 12. mounting frame 1; 13. driving sprocket assembly 1; 14. induction cylinder; 15. fixing frame 2; 16. foot roller; 17. adjusting handwheel 2; 18. driving sprocket assembly 2; 19. driving sprocket assembly 3; 20. fixing roller; 21. connecting sprocket assembly 1; 22. helical gear 1; 23. connecting sprocket assembly 2; 24. connecting sprocket assembly 3; 25. helical gear 2; 26. guiding roller; 27. driving sprocket assembly 1; 28. servo motor 1; 29. fixed machine frame; 30. driving sprocket assembly 2; 31. conveying belt 1; 32. pressing cylinder; 33. transmission box; 34. synchronous sprocket assembly 1; 35. servo motor 2; 36. mounting frame 2; 37. transmission belt; 38. transmission roller; 39. rotating shaft; 40. helical gear 3; 41. fixing frame 3; 42. fixed shaft 1; 43. rotating rod; 44. driven bevel gear; 45. driving bevel gear; 46. fixed shaft 2. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment:

[0027] As Figures 1-7As shown in the figure, an embodiment of the present invention provides a four-sided carton packaging device, which includes a fixed frame 29. Protective plates 1 are fixedly connected to both the front and rear ends of the fixed frame 29. The internal structure of the fixed frame 29 can be protected through the protective plates 1. A receiving table 2 is fixedly connected to the left end of the fixed frame 29. The receiving table 2 can assist people in receiving materials. A servo motor 1 28 is fixedly connected to the middle and lower part of the front side of the receiving table 2. The front driving end of the servo motor 1 28 is connected to a fixed roller 20 through a driving sprocket assembly 2 30. The fixed roller 20 is rotatably connected to the upper middle right side of the fixed frame 29. Both the front and rear ends of the fixed roller 20 are rotatably connected to the fixed frame 29 through bearings. The fixed roller 20 is connected to a feeding roller 11 through a transmission sprocket assembly 3 19. The feeding rollers 11 are all rotatably connected to the upper right side of the fixed frame 29. The feeding rollers 11 are connected through a helical gear 3 40. The helical gear 3 40 is fixedly connected to the front end of the outer circumference of the feeding roller 11. Through the servo motor 1 28, the driving sprocket assembly 2 30 can be used to drive the fixed roller 20 to rotate, and then the feeding roller 11 can be driven to rotate through the transmission sprocket assembly 3 19. The feeding rollers 11 are driven through the helical gear 3 40, so that the feeding of materials can be realized through the feeding roller 11.

[0028] On the upper right part of the fixed frame 29, uniformly distributed first conveyor belts 31 are arranged. The first conveyor belts 31 are all arranged on the outer circumference of a first fixed shaft 42. The first fixed shafts 42 are connected through a transmission sprocket assembly 2 18. The rear end of the left first fixed shaft 42 is fixedly connected to an adjusting handwheel 2 17. Both the front and rear sides of the middle part of the fixed roller 20 are connected to a transmission box 33 through a driving sprocket assembly 1 27. The transmission boxes 33 are all arranged on the right side of a guiding roller 26. The guiding rollers 26 are all rotatably connected to the fixed frame 29 through bearings. The fixed roller 20 can drive the transmission gears inside the transmission box 33 through the driving sprocket assembly 1 27, so as to drive the first conveyor belts 31 to work, so that the materials can be guided and limited through the first conveyor belts 31 and the paper pressing wheels 10 on the upper side of the first conveyor belts 31 during use.

[0029] The guide rollers 26 are all arranged in the middle of the upper part of the fixed frame 29. Helical gears one 22 are fixedly connected to the front parts of the outer peripheries of the guide rollers 26. The helical gears one 22 are meshed with each other. The front part of the lower guide roller 26 is connected to a fixed roller 20 through a connecting sprocket assembly one 21. The fixed roller 20 is arranged at the rear side of the driving sprocket assembly three 19. The driving sprocket assembly three 19 is arranged at the rear side of the driving sprocket assembly two 30. The left part of the front side of the connecting sprocket assembly one 21 is provided with a connecting sprocket assembly two 23. The guide roller 26 is connected to a fixed shaft two 46 through the connecting sprocket assembly two 23. The servo motor one 28 can drive the fixed roller 20 to rotate by means of the driving sprocket assembly two 30. The guide roller 26 can be driven to rotate through the connecting sprocket assembly one 21 on the fixed roller 20. The whole guide roller 26 can be driven to work through the helical gears one 22 on the guide roller 26, so as to realize the guiding and limiting of the material.

[0030] The fixed shafts two 46 are all rotatably connected to the upper left part of the fixed frame 29 through bearings. The front part of the right fixed shaft two 46 is connected to a blanking roller 3 through a connecting sprocket assembly three 24. The front and rear ends of the blanking roller 3 are rotatably connected to the upper left end of the fixed frame 29 through bearings. The blanking rollers 3 are all arranged on the left side of the fixed shafts two 46. Helical gears two 25 are fixedly connected to the front parts of the outer peripheries of the blanking roller 3 and the fixed shafts two 46. The upper and lower helical gears two 25 are meshed with each other. The helical gears two 25 are all arranged at the rear side of the connecting sprocket assembly three 24. The fixed shafts two 46 are connected through a driving sprocket assembly one 13. The driving sprocket assembly one 13 is at the rear part of the fixed shafts two 46. The guide roller 26 can drive the fixed shafts two 46 to rotate through the connecting sprocket assembly two 23. The fixed shafts two 46 are driven through the driving sprocket assembly one 13. The blanking roller 3 and the fixed shafts two 46 can be driven to rotate synchronously through the connecting sprocket assembly three 24, so that the blanking work of the material can be carried out stably.

[0031] A rotating rod 43 is arranged on the right side of the driving sprocket assembly one 13. The top end of the rotating rod 43 is fixedly connected to an adjusting handwheel one 5. The rotating rod 43 is rotatably connected to the left side of the rear part of the fixed frame 29. A driving bevel gear 45 is fixedly connected to the middle part of the outer periphery of the rotating rod 43. A driven bevel gear 44 is meshed with the front side of the driving bevel gear 45. The driven bevel gear 44 is fixedly connected to the outer periphery of a rotating shaft 39. The rotating shafts 39 are all rotatably connected to the upper left part of the fixed frame 29 through bearings. The rotating shafts 39 are connected through a synchronous sprocket assembly one 34. Fixed frames one 6 are fixedly connected to the middle parts of the rotating shafts 39. By rotating the adjusting handwheel one 5, the rotating rod 43 can be driven to rotate. The rotating rod 43 can drive the driving bevel gear 45 fixed to it to rotate. The driven bevel gear 44 meshed with the driving bevel gear 45 can be driven to rotate through the driving bevel gear 45. The rotating shaft 39 can be driven to rotate through the driven bevel gear 44. The fixed frame two 15 can be driven to move on the rotating shaft 39 through the synchronous sprocket assembly one 34 by means of the rotating shaft 39, so as to realize the edge folding of cartons of different specifications.

[0032] Fixed frames two 15 are fixedly connected to both the front and rear sides of the rotating shaft 39. Evenly distributed caster wheels 16 are fixedly connected to the lower parts of the sides of the fixed frames two 15 that are close to each other. Evenly distributed guide wheels 7 are fixedly connected to the middle of the fixed frame one 6. An induction cylinder 14 is arranged on the left side of the middle of the fixed frame one 6. A pressing cylinder 32 is fixedly connected to the right end of the outer periphery of the fixed frame one 6. The pressing cylinder 32 is arranged on the left side of the middle of the guide roller 26. Hemming belts 9 are arranged on the sides of the transmission boxes 33 that are close to each other. The transmission boxes 33 are all connected to the fixed frames three 41 through the hemming belts 9. The material can be guided and limited by the feeding belt one 31 and the paper pressing wheels 10 on the upper side of the feeding belt one 31. During the feeding process, the transmission boxes 33 can drive the hemming belts 9 to work. The hemming belts 9 are set in a flipping state. The material can be hemmed and edge wrapped through the hemming belts 9. At the same time, the pressing cylinder 32 fixed on the fixed frame one 6 can press the material and the already edge wrapped part after the material passes through the guide roller 26 to prevent the material from warping, so as to facilitate subsequent edge wrapping and enable flawless hemming of the paper box.

[0033] The fixed frames three 41 are all slidably connected to the middle parts of the front and rear sides of the outer periphery of the fixed shaft one 42. Feeding belts one 31 are arranged on the sides of the hemming belts 9 that are close to each other. The fixed frames three 41 are all connected to the transmission boxes 33 through the feeding belts one 31. Evenly distributed paper pressing wheels 10 are arranged on the upper sides of the feeding belts one 31. Evenly distributed transmission rollers 38 are arranged between the blanking roller 3 and the guide roller 26. The transmission rollers 38 are connected through the feeding belt two 8. The servo motor one 28 can drive the fixed roller 20 to rotate by using the driving sprocket assembly two 30, and then can drive the feeding roller 11 to rotate through the transmission sprocket assembly three 19, so that the feeding of the material can be realized through the feeding roller 11. At the same time, the fixed roller 20 can drive the transmission gears inside the transmission box 33 to transmit through the driving sprocket assembly one 27, so as to drive the feeding belt one 31 to work, so that the material can be guided and limited by the feeding belt one 31 and the paper pressing wheels 10 on the upper side of the feeding belt one 31 during use.

[0034] The guiding wheel 7 and the foot roller 16 are both arranged on the upper side of the second conveying belt 8. The right transmission roller 38 is connected with a second servo motor 35 through a transmission belt 37. The second servo motor 35 is fixedly connected to the middle left side of the rear end of the fixed frame 29 through a second mounting frame 36. A plurality of evenly distributed elastic pieces 4 are mounted on the upper left end of the fixed frame 29 through a first mounting frame 12. The elastic pieces 4 are all arranged on the right side of the blanking roller 3. The elastic pieces 4 can be mounted on the fixed frame 29 through the first mounting frame 12 on the upper left side of the fixed frame 29. The hemming of the paper box can be realized through the elastic pieces 4. At the same time, the traditional single elastic plate is changed to evenly distributed elastic pieces 4, so that the elastic pieces 4 can adapt to materials of different shapes during actual use, and thus the hemming of special-shaped paper boxes can be realized. At the same time, the pressing cylinder 32 fixed on the first fixing frame 6 can press the material and the already hemmed edge after the material passes through the guiding roller 26, preventing the material from warping, so as to facilitate the subsequent hemming and realize the flawless hemming of the paper box.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A four-sided wrapping device for paper boxes, comprising a fixed frame (29), characterized in that: The front and rear ends of the fixed frame (29) are fixedly connected with protective plates (1). The left end of the fixed frame (29) is fixedly connected with a material receiving table (2). The middle and lower part of the front side of the material receiving table (2) is fixedly connected with a first servo motor (28). The front driving end of the first servo motor (28) is connected with a fixed roller (20) through a second driving sprocket assembly (30). The fixed roller (20) is rotatably connected to the upper middle right side of the fixed frame (29). The front and rear ends of the fixed roller (20) are rotatably connected to the fixed frame (29) through bearings. The fixed roller (20) is connected with a feeding roller (11) through a third transmission sprocket assembly (19). The feeding rollers (11) are rotatably connected to the upper right side of the fixed frame (29). The feeding rollers (11) are connected through a third helical gear (40). The third helical gears (40) are fixedly connected to the front ends of the outer peripheries of the feeding rollers (11). On the upper right part of the fixed frame (29), uniformly distributed first conveying belts (31) are arranged. The first conveying belts (31) are arranged on the outer peripheries of first fixed shafts (42). The first fixed shafts (42) are connected through a second transmission sprocket assembly (18). The rear end of the left first fixed shaft (42) is fixedly connected with a second adjusting handwheel (17). The front and rear sides of the middle part of the fixed roller (20) are connected with a transmission box (33) through a first driving sprocket assembly (27). The transmission boxes (33) are arranged on the right side of guide rollers (26). The guide rollers (26) are rotatably connected to the fixed frame (29) through bearings. Flanged belts (9) are arranged on the sides of the transmission boxes (33) close to each other. The transmission boxes (33) are connected with third fixed frames (41) through the flanged belts (9). The third fixed frames (41) are slidably connected to the middle parts of the outer peripheries of the first fixed shafts (42) at the front and rear sides. The first conveying belts (31) are arranged on the sides of the flanged belts (9) close to each other. The third fixed frames (41) are connected with the transmission boxes (33) through the first conveying belts (31). Pressing paper wheels (10) are uniformly distributed on the upper sides of the first conveying belts (31).

2. The four-sided wrapping device for paper boxes according to claim 1, characterized in that: The guide rollers (26) are arranged on the upper middle part of the fixed frame (29). First helical gears (22) are fixedly connected to the front parts of the outer peripheries of the guide rollers (26). The first helical gears (22) are meshed with each other. The front part of the lower guide roller (26) is connected with a fixed roller (20) through a first connecting sprocket assembly (21). The fixed roller (20) is arranged behind the third transmission sprocket assembly (19). The third transmission sprocket assembly (19) is arranged behind the second driving sprocket assembly (30). The left part of the front side of the first connecting sprocket assembly (21) is provided with a second connecting sprocket assembly (23). The guide rollers (26) are connected with a second fixed shaft (46) through the second connecting sprocket assembly (23).

3. The carton four-sided wrapping device according to claim 2, characterized in that: The second fixed shafts (46) are all rotatably connected to the upper left side of the fixed frame (29) through bearings. The front part of the second fixed shaft (46) on the right side is connected to a blanking roller (3) through a third connecting sprocket assembly (24). Both the front and rear ends of the blanking roller (3) are rotatably connected to the upper left end of the fixed frame (29) through bearings. The blanking rollers (3) are all arranged on the left side of the second fixed shafts (46). Helical gears II (25) are fixedly connected to the outer circumferences of the front parts of the blanking rollers (3) and the second fixed shafts (46). The helical gears II (25) on the upper and lower sides are meshed with each other. The helical gears II (25) are all arranged at the rear side of the third connecting sprocket assembly (24). The second fixed shafts (46) are connected through a first transmission sprocket assembly (13). The first transmission sprocket assembly (13) is at the rear part of the second fixed shafts (46).

4. The carton four-sided wrapping device according to claim 3, characterized in that: A rotating rod (43) is arranged on the right side of the first transmission sprocket assembly (13). The top end of the rotating rod (43) is fixedly connected to an adjusting handwheel I (5). The rotating rod (43) is rotatably connected to the upper left side of the rear part of the fixed frame (29). A driving bevel gear (45) is fixedly connected to the middle part of the outer circumference of the rotating rod (43). A driven bevel gear (44) is meshed with the front side of the driving bevel gear (45). The driven bevel gear (44) is fixedly connected to the outer circumference of a rotating shaft (39). The rotating shafts (39) are all rotatably connected to the upper left side of the fixed frame (29) through bearings. The rotating shafts (39) are connected through a first synchronous sprocket assembly (34). Fixing frames I (6) are fixedly connected to the middle parts of the rotating shafts (39).

5. The carton four-side wrapping device according to claim 4, characterized in that: Fixing frames II (15) are fixedly connected to the front and rear sides of the rotating shafts (39). Evenly distributed foot pressing wheels (16) are fixedly connected to the lower parts of the closer sides of the fixing frames II (15). Guide wheels (7) are fixedly connected to the middle parts of the fixing frames I (6). An induction cylinder (14) is arranged on the left side of the middle part of the fixing frame I (6). A pressing cylinder (32) is fixedly connected to the right end of the outer circumference of the fixing frame I (6). The pressing cylinder (32) is arranged on the left side of the middle part of a guide roller (26).

6. The carton four-side wrapping device according to claim 5, characterized in that: Evenly distributed transmission rollers (38) are arranged between the blanking roller (3) and the guide roller (26). The transmission rollers (38) are connected through a second material conveying belt (8).

7. The four-sided packaging device for paper boxes according to claim 6, characterized in that: The guide wheels (7) and the foot pressing wheels (16) are all arranged on the upper side of the second material conveying belt (8). The right transmission roller (38) is connected to a second servo motor (35) through a transmission belt (37). The second servo motor (35) is fixedly connected to the middle left side of the rear end of the fixed frame (29) through a second mounting frame (36). Evenly distributed elastic pieces (4) are mounted on the upper left end of the fixed frame (29) through a first mounting frame (12). The elastic pieces (4) are all arranged on the right side of the blanking roller (3).

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