Waste bag rolling mechanism

Abstract

The utility model discloses a kind of roll waste bag mechanisms, first bag roll assembly, second bag roll assembly are provided on main frame, bag roll cavity is between first bag roll assembly and second bag roll assembly, second bag roll assembly is rotatably arranged on main frame, and bag roll cavity is closed or opened by rotating;Bag roll cavity is between the first belt of first bag roll assembly and the second belt of second bag roll assembly, in the region defined by the driving roller and the driven roller of first bag roll assembly and second bag roll assembly, first bag roll assembly and second bag roll assembly cooperate to complete the winding of waste bag.The utility model cooperates to complete the winding and film of waste bag by first bag roll assembly and second bag roll assembly, waste bag roll is sent out recovery after winding film, without manual waste bag collection, saves manual cost, reduces the influence of dust on working environment, guarantees the physical and mental health of worker.

Description

Technical Field

[0001] This utility model relates to the field of industrial waste bag recycling technology, and in particular to a waste bag rolling mechanism. Background Technology

[0002] Ton bags are characterized by their large capacity, light weight, and ease of loading and unloading. They are a common packaging material suitable for transporting large quantities of bulk powdery materials.

[0003] The management of waste bags is an important part of environmental protection and resource recycling. With the continuous increase in the amount of waste bags generated, how to effectively dispose of these waste bags, reduce environmental pollution, and at the same time realize resource reuse has become an urgent problem to be solved in the current industrial field.

[0004] Currently, the recycling of waste ton bags is usually carried out through basic conveyor devices or manual collection, which is not only costly in terms of labor, but also generates a lot of dust during the collection process, affecting the working environment and harming the physical and mental health of workers. Utility Model Content

[0005] In response to the shortcomings of existing waste bag collection methods, the applicant provides a reasonably structured waste bag rolling mechanism that rolls up and wraps waste bags before sending them out for recycling, saving labor costs, reducing the impact of dust on the working environment, and ensuring the physical and mental health of workers.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A waste bag rolling mechanism includes a first bag rolling assembly and a second bag rolling assembly on a main frame. A bag rolling cavity is provided between the first bag rolling assembly and the second bag rolling assembly. The second bag rolling assembly is rotatably mounted on the main frame and the bag rolling cavity can be closed or opened by rotating it.

[0008] The first and second bag roll assemblies are respectively equipped with belts, drive rollers, driven rollers, tension rollers, and drive motors. The belts are wound around the drive rollers, driven rollers, and tension rollers. The drive motors are connected to the drive rollers and drive the drive rollers to rotate, thereby driving the belts to rotate. The belts of the first and second bag roll assemblies rotate in the same direction. The bag rolling chamber is located between the first belt of the first bag roll assembly and the second belt of the second bag roll assembly. Within the area defined by the drive rollers and driven rollers of the first and second bag roll assemblies, the first and second bag roll assemblies cooperate to complete the winding of waste bags.

[0009] The tensioning rollers of the first roll bag assembly and the second roll bag assembly are respectively connected to tension adjustment components, which can adjust the tensioning rollers in real time to ensure that the belt is always tensioned.

[0010] As a further improvement to the above technical solution:

[0011] The first roll bag assembly and the second roll bag assembly are also equipped with limit rollers;

[0012] The driven roller of the first roll bag assembly includes an upper driven roller and a lower driven roller. The first limiting roller is disposed inside the first belt and between the upper driven roller and the lower driven roller. In the initial state, the first belt does not contact the first limiting roller. When the waste bag is rolled up, the first belt is recessed towards the first limiting roller and adheres to the first limiting roller.

[0013] The second limiting roller of the second roll bag assembly is located between the second driving roller and the second driven roller. The second belt is wound around the second limiting roller. When the waste bag is wound up, the second belt is recessed towards the second limiting roller and attached to the second limiting roller.

[0014] When the second roll bag assembly is closed, the centers of the upper driven roller, the first limiting roller, the lower driven roller, the first driving roller, the second limiting roller, the second driven roller, and the upper driven roller are connected in sequence to form a convex hexagonal area, and the roll bag cavity is located within this convex hexagonal area.

[0015] The tension adjustment component of the first tensioning roller of the first roll bag assembly is a tensioning cylinder. Both ends of the first tensioning roller are connected to the tensioning cylinder, which is mounted on the main frame. A first sliding groove is provided along the Z-direction on the main frame. Both ends of the first tensioning roller pass through the first sliding groove, and the tensioning cylinder can drive the first tensioning roller to move along the first sliding groove. The tension adjustment component of the second tensioning roller of the second roll bag assembly is a tensioning spring. Both ends of the second tensioning roller are connected to the tensioning spring, and the other end of the tensioning spring is connected to the connecting seat of the support plate. A second sliding groove is provided on the support plate, and both ends of the second tensioning roller pass through the second sliding groove. The second tensioning roller can move along the second sliding groove under the elastic force of the tensioning spring. Alternatively, the tension adjustment components of the first and second tensioning rollers can be hydraulic cylinders and electric push rods.

[0016] The second drive roller, second driven roller, second tension roller, and second limit roller of the second roll bag assembly are arranged between two support plates. The second driven roller passes through the main frame. The connecting seats of the two support plates are respectively connected to swing cylinders. The swing cylinders can drive the support plates to rotate around the central axis of the second driven roller, thereby driving the second roll bag assembly to close or open. A protrusion is provided on the support plate below the second slide groove, and an auxiliary rod is inserted into the protrusion.

[0017] On the main frame, a film wrapping assembly is located above the first roll bag assembly; the film wrapping assembly includes a film cylinder, a film winding drive roller, a film winding driven roller, and a film winding motor. The film winding drive roller and the film winding driven roller are arranged side by side and located below the film cylinder. The film on the film cylinder passes through the film winding gap between the film winding drive roller and the film winding driven roller. The film winding drive roller is connected to the film winding motor.

[0018] On the main frame, a bag feeding roller is located above the first roll bag assembly. The bag feeding roller is arranged at intervals with the film wrapping assembly and is connected to the bag feeding motor.

[0019] The main frame is equipped with a bag inlet baffle assembly, which includes a first baffle, a second baffle, and a third baffle. The first baffle is located on the top side of the main frame and is inclined downward toward the bag inlet. The second baffle is located on the right and lower side of the bag feeding roller. The third baffle is vertically located between the film wrapping assembly and the bag feeding roller.

[0020] The second baffle includes an upper vertical baffle, a horizontal baffle, a lower vertical baffle, and an arc-shaped section. The horizontal baffle is horizontally arranged below the bag feeding roller. The upper vertical baffle extends vertically upward from one end of the horizontal baffle and is located on the right side of the bag feeding roller. The lower vertical baffle extends vertically downward from the other end of the horizontal baffle. The arc-shaped section is connected to the lower end of the lower vertical baffle. The horizontal baffle is connected to the upper and lower vertical baffles by rounded corners. The upper, horizontal, and lower vertical baffles are provided with side guards on both sides. The third baffle has a gap with the lower vertical baffle of the second baffle, forming a downward feeding channel for waste bags.

[0021] A bag-rolling slope is provided on the outer side of the bag outlet side of the main frame. The bag-rolling slope is located on the outer side of the bag-rolling cavity, and the rolling surface of the bag-rolling slope is an inclined surface.

[0022] The beneficial effects of this utility model are as follows:

[0023] This invention completes the winding and wrapping of waste bags through the cooperation of the first roll bag assembly and the second roll bag assembly. After the waste bag roll is wound and wrapped, it is sent out for recycling. There is no need for manual collection of waste bags, which saves labor costs, reduces the impact of dust on the working environment, and ensures the physical and mental health of workers.

[0024] The waste bag of this invention is rolled into a cylindrical shape in a hexagonal roll chamber by a belt. The rolling is simple and convenient, and the rolled waste bag is tight and easy to collect. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a side view of the internal structure of the present invention, showing the initial state before the waste bag is rolled.

[0027] Figure 3 This is a side view of the internal structure of the present invention, showing the state of the waste bag being rolled up and ready to be wrapped.

[0028] Figure 4 This is a side view of the internal structure of the present invention, showing the state of the waste bag after it has been rolled up and wrapped, ready to be sent out.

[0029] Figure 5 This is a schematic diagram of the three-dimensional structure of the lower baffle.

[0030] Figure 6 This is a three-dimensional structural diagram of the support plate for the second roll bag assembly.

[0031] In the picture:

[0032] 1. Main frame; 11. Bag inlet; 12. First chute;

[0033] 2. Bag feeding roller;

[0034] 3. First roll bag assembly; 31. First belt; 32. First drive roller; 33. First driven roller; 331. Upper driven roller; 332. Lower driven roller; 34. First tension roller; 35. First limit roller; 36. Tensioning cylinder; 37. First drive motor;

[0035] 4. Second roll bag assembly; 41. Second belt; 42. Second driving roller; 43. Second driven roller; 44. Second tension roller; 45. Second limit roller; 46. Tension spring; 47. Second drive motor; 48. Swing cylinder; 49. Support plate; 491. Second slide groove; 492. Protrusion; 493. Auxiliary rod; 494. Connecting seat;

[0036] 5. Coating assembly; 50. Film; 51. Film tube; 52. Film winding drive roller; 53. Film winding driven roller; 54. Film winding motor;

[0037] 6. Rolling bag slope;

[0038] 7. Bag inlet baffle assembly; 71. First baffle; 72. Second baffle; 721. Upper vertical baffle; 722. Horizontal baffle; 723. Lower vertical baffle; 724. Arc-shaped part; 725. Edge guard; 73. Third baffle;

[0039] 10. Bag rolling chamber; 20. Lower feeding channel;

[0040] 100. Waste bag rolls. Detailed Implementation

[0041] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0042] For ease of explanation, an XYZ rectangular coordinate system is shown in the accompanying drawings. The X-axis represents the left-right direction of the frame, the Y-axis represents the front-back direction of the frame, and the Z-axis represents the height direction of the frame. The X, Y, and Z axes are orthogonal to each other. The naming and setting of the X, Y, and Z axes are for the purpose of fully illustrating the relevant structure and are not restrictive. Slight adjustments to the horizontal and vertical directions also fall within the protection scope of this utility model.

[0043] like Figures 1 to 4 As shown, this utility model provides a waste bag rolling mechanism for recycling waste bags. Its main frame 1 is equipped with a bag feeding roller 2, a first bag rolling assembly 3, a second bag rolling assembly 4, a film coating assembly 5, and a bag inlet baffle assembly 7. A bag rolling ramp 6 is provided on the outer side of the bag outlet side of the main frame 1. A bag rolling cavity 10 is formed between the first bag rolling assembly 3 and the second bag rolling assembly 4. The second bag rolling assembly 4 is rotatably mounted on the main frame 1, and the bag rolling cavity 10 can be closed or opened by rotation.

[0044] like Figure 1 As shown, sealing plates are respectively provided on the bottom Z-direction, left X-direction, and front and rear Y-direction sides of the main frame 1. An inlet 11 is provided on the top Z-direction side of the main frame 1, and the right X-direction side of the main frame 1 is open. Figures 1 to 4 As shown, the bag feeding roller 2, the first roll bag assembly 3, and the wrapping assembly 5 are arranged inside the main frame 1. The wrapping assembly 5 and the bag feeding roller 2 are arranged above the first roll bag assembly 3 and spaced apart to the left and right along the X direction. The second roll bag assembly 4 is located on the open right side of the main frame 1, to the right of the first roll bag assembly 3.

[0045] The bag feeding roller 2 is connected to the bag feeding motor (not shown in the figure). The bag feeding motor drives the bag feeding roller 2 to rotate, conveying the waste bags downwards.

[0046] like Figures 2 to 4As shown, the first roll bag assembly 3 is provided with a first belt 31, a first driving roller 32, a first driven roller 33, a first tensioning roller 34, a first limiting roller 35, a tensioning cylinder 36, and a first drive motor 37. The first driving roller 32, the first driven roller 33, the first tensioning roller 34, and the first limiting roller 35 are respectively horizontally arranged along the Y direction between the front and rear side sealing plates of the main frame 1. The first belt 31 is wound around the first driving roller 32, the first driven roller 33, and the first tensioning roller 34. One end of the first driving roller 32 is connected to the first drive motor 37. The first drive motor 37 drives the first driving roller 32 to rotate, thereby driving the first belt 31 to circulate around each roller. The first tensioning roller 34 is connected to tensioning cylinders 36 at both ends. The tensioning cylinders 36 are installed on the outside of the side sealing plate of the main frame 1. The side sealing plate of the main frame 1 has a vertical, elongated first groove 12 along the Z direction. The two ends of the first tensioning roller 34 are respectively inserted into the first groove 12. The tensioning cylinders 36 can drive the first tensioning roller 34 to move along the first groove 12 to adjust the tension of the first belt 31, so that the first belt 31 is always kept taut. Several first driven rollers 33 are provided. In this embodiment, an upper driven roller 331 and a lower driven roller 332 are provided. The first limiting roller 35 is disposed inside the first belt 31, between the upper driven roller 331 and the lower driven roller 332. Initially, the first belt 31 does not contact the first limiting roller 35. During waste bag winding, the first belt 31 is recessed towards the first limiting roller 35 and adheres to it. The first limiting roller 35 limits the recess of the first belt 31, confining it to a designated position to ensure smooth bag winding. The centers of the upper driven roller 331, the first limiting roller 35, the lower driven roller 332, and the first driving roller 32 are sequentially connected, forming three sides of a hexagon.

[0047] like Figures 2 to 4As shown, the second roll bag assembly 4 is equipped with a second belt 41, a second driving roller 42, a second driven roller 43, a second tension roller 44, a second limiting roller 45, a tension spring 46, a second drive motor 47, a swing cylinder 48, and support plates 49. The two support plates 49 are parallel to the side sealing plates of the main frame 1. The second driving roller 42, the second driven roller 43, the second tension roller 44, and the second limiting roller 45 are horizontally arranged between the two support plates 49 along the Y direction. The second belt 41 is wound around the second driving roller 42, the second driven roller 43, the second tension roller 44, and the second limiting roller 45. One end of the second driving roller 42 is connected to the second drive motor 47, which drives the second driving roller 42 to rotate, thereby causing the second belt 41 to circulate around each roller. The second belt 41 rotates in the same direction and synchronously with the first belt 31. The second driven roller 43 passes through the side sealing plate of the main frame 1 at both ends. Bearings are fitted between the second driven roller 43 and the side sealing plate of the main frame 1. The second roll bag assembly 4 can rotate around the central axis of the second driven roller 43. Tension springs 46 are connected to both ends of the second tension roller 44. The other end of the tension springs 46 is connected to the connecting seat 494 of the support plate 49. Figure 6 As shown, the support plate 49 has an elongated oval second sliding groove 491, as... Figures 2 to 4 As shown, the two ends of the second tensioning roller 44 are respectively inserted into the second slide groove 491. Under the elastic force of the tension spring 46, the second tensioning roller 44 can move along the second slide groove 491 to adjust the tension of the second belt 41, so that the second belt 41 is always in a taut state. The second limiting roller 45 is located between the second driving roller 42 and the second driven roller 43. When the waste bag is rolled up, the second belt 41 is recessed towards the second limiting roller 45 and adheres to the second limiting roller 45. The second limiting roller 45 can limit the recess of the second belt 41 and limit the second belt 41 to a designated position to ensure the smooth rolling of the bag. The connecting seats 494 of the two support plates 49 are respectively connected to the swing cylinder 48. The swing cylinder 48 is installed on the outside of the side sealing plate of the main frame 1. The swing cylinder 48 can drive the support plate 49 to rotate around the central axis of the second driven roller 43, thereby driving the second bag rolling assembly 4 to close or open. Figures 1 to 3 As shown, in the initial state or during roll-up or wrapping, the second roll-up assembly 4 is closed, as... Figure 4 As shown, after the waste bag is wound up and wrapped, the second roll bag assembly 4 is opened.

[0048] like Figures 2 to 4As shown, when the second bag roll assembly 4 is closed, the centers of the upper driven roller 331, the first limiting roller 35, the lower driven roller 332, the first driving roller 32, the second limiting roller 45, the second driven roller 43, and the upper driven roller 331 are connected in sequence, forming a convex hexagon. The upper driven roller 331, the first limiting roller 35, the lower driven roller 332, the first driving roller 32, the second limiting roller 45, and the second driven roller 43 are located at the six corners of the hexagon. The bag roll cavity 10 is located within this convex hexagonal area. The waste bag is wound into a cylindrical waste bag roll 100 by the first belt 31 and the second belt 41 within the bag roll cavity 10. The waste bag is wound into a cylindrical shape within the hexagonal bag roll cavity 10 by the action of the belts. The winding is simple and convenient, and the wound waste bag roll 100 is compact and easy to collect.

[0049] like Figure 6 As shown, a protrusion 492 is provided on the support plate 49 of the second roll bag assembly 4 below the second slide groove 491, and an auxiliary rod 493 is inserted into the protrusion 492. The design of the protrusion 492 and the auxiliary rod 493 can help the second belt 41 to be installed better. Since the second belt 41 needs to be kept at a high tension in the initial state, during installation, the auxiliary rod 493 is used to drive the tension spring 46 to stretch to a large extent. Then, the second belt 41 in the slack state is installed on each roller of the second roll bag assembly 4. After the auxiliary rod 493 is released, the tension spring 46 is pulled back, so that the second belt 41 is tensioned on each roller.

[0050] like Figures 1 to 4 As shown, the wrapping assembly 5 includes a film cylinder 51, a film-winding drive roller 52, a film-winding driven roller 53, and a film-winding motor 54. The film-winding drive roller 52 and the film-winding driven roller 53 are arranged side by side to form a set of film-winding rollers, positioned below the film cylinder 51. The film 50 on the film cylinder 51 passes through the film-winding gap between the film-winding drive roller 52 and the film-winding driven roller 53. The film-winding drive roller 52 is connected to the film-winding motor 54, which drives the film-winding drive roller 52 to rotate, thereby conveying the film 50 downwards. The film-winding motor 54 has a braking function; once the film 50 is sufficiently lowered, the film-winding motor 54 brakes, stopping the film feeding. The bag-winding force breaks the film 50, and the belt continues to move, completing the wrapping of the ton bag.

[0051] like Figure 1 As shown, the bag inlet baffle assembly 7 includes a first baffle 71, a second baffle 72, and a third baffle 73. The first baffle 71 is located on the top Z-direction side of the main frame 1, and the first baffle 71 is located on the left and right X-direction sides of the bag inlet 11. The first baffle 71 is approximately horizontal and slightly inclined downwards towards the bag inlet 11 to facilitate guiding the waste bag to the bag inlet 11. The second baffle 72 is located on the right and lower sides of the bag feeding roller 2; as shown... Figure 5As shown, the second baffle 72 includes an upper vertical baffle 721, a horizontal baffle 722, a lower vertical baffle 723, and an arc-shaped portion 724. The horizontal baffle 722 is horizontally arranged below the bag-feeding roller 2. The upper vertical baffle 721 extends vertically upward along the Z-direction from one end of the horizontal baffle 722 and is located on the right side of the bag-feeding roller 2. The lower vertical baffle 723 extends vertically downward along the Z-direction from the other end of the horizontal baffle 722. One end of the arc-shaped portion 724 is connected to the lower end of the lower vertical baffle 723, and the other end extends in the X-direction. The horizontal baffle 722 is connected to the upper vertical baffle 721 and the lower vertical baffle 723 by rounded corners. Side guards 725 are provided on both sides of the upper vertical baffle 721, the horizontal baffle 722, and the lower vertical baffle 723. The side guards 725 can restrict the waste bag within the trajectory range of the second baffle 72, allowing the waste bag to be smoothly guided downwards. Figure 1 As shown, the third baffle 73 is vertically disposed between the wrapping assembly 5 and the bag feeding roller 2. On the one hand, it can separate the wrapping assembly 5 and the bag feeding roller 2, and on the other hand, it can also force the waste bag to turn downward and move towards the first roll bag assembly 3 by blocking it. There is a gap between the third baffle 73 and the lower vertical baffle 723 of the second baffle 72, which forms a downward feeding channel 20 for the waste bag. The waste bag is fed downward to the first roll bag assembly 3 through the downward feeding channel 20.

[0052] like Figures 1 to 4 As shown, the bag rolling slope 6 is located on the outside of the bag rolling cavity 10. The rolling surface of the bag rolling slope 6 is inclined, which facilitates the outward feeding of the wrapped waste bag roll 100.

[0053] In practical use, this utility model, for example Figure 2 As shown, in the initial state, the second roll bag assembly 4 is closed, the first tensioning roller 34 of the first roll bag assembly 3 and the second tensioning roller 44 of the second roll bag assembly 4 are in the upper position, and the first belt 31 and the second belt 41 are open. When bag feeding begins, the bag feeding motor, the first drive motor 37, and the second drive motor 47 are started, and the first belt 31 and the second belt 41 rotate synchronously and in the same direction. The waste bag is fed downwards onto the first belt 31 through the bag feeding roller 2, and then fed into the roll bag cavity 10 along with the first belt 31. Figure 3 As shown, under the compression of the waste bag, the first belt 31 and the second belt 41 are respectively recessed into the limiting roller, forming a hexagonal area in the bag rolling cavity 10. The waste bag, within the hexagonal bag rolling cavity 10, is rolled into a cylindrical waste bag roll 100 by the rotating first belt 31 and second belt 41. After the waste bag roll 100 is rolled into a cylindrical shape, the film winding motor 54 starts, driving the film winding drive roller 52 to lower the film 50 onto the first belt 31. The film 50 follows the first belt 31 into the bag rolling cavity 10 and covers the waste bag roll 100. After the film 50 has been lowered sufficiently, the film winding motor 54 brakes, the film 50 stops lowering, and the film 50 is broken. As the belt continues to rotate, the wrapping of the waste bag roll 100 is completed. Figure 4As shown, after the wrapping is completed, the first drive motor 37 stops running, while the second drive motor 47 continues to run. The swing cylinder 48 drives the second roll bag assembly 4 to open the roll bag cavity 10. The waste bag roll 100 is carried out of the roll bag cavity 10 by the continuously rotating second belt 41 and sent out along the rolling surface of the roll bag slope 6, completing the waste bag recycling. After one waste bag is recycled, the swing cylinder 48 drives the second roll bag assembly 4 to close the roll bag cavity 10, and the first belt 31 and the second belt 41 are opened and reset to continue the winding of the next waste bag. During the waste bag winding process, the tension cylinder 36 of the first roll bag assembly 3 adjusts the first tension roller 34 in real time to keep the first belt 31 taut and prevent the first belt 31 from loosening; the second tension roller 44 of the second roll bag assembly 4 is adjusted in real time by the tension spring 46 to keep the second belt 41 taut and prevent the second belt 41 from loosening.

[0054] This invention completes the winding and wrapping of waste bags through the cooperation of the first roll bag assembly 3 and the second roll bag assembly 4. After the waste bag roll 100 is wound and wrapped, it is sent out for recycling. There is no need for manual collection of waste bags, which saves labor costs, reduces the impact of dust on the working environment, and ensures the physical and mental health of workers.

[0055] Tensioning adjustment components are not limited to cylinders and springs; equivalent alternatives such as hydraulic cylinders and electric push rods also fall within the protection scope of this utility model.

[0056] The above description is an explanation of the present utility model and not a limitation thereof. The present utility model can be modified in any form without departing from its spirit.

Claims

1. A waste bag rolling mechanism, characterized in that: The main frame (1) is provided with a first roll bag assembly (3) and a second roll bag assembly (4). There is a roll bag cavity (10) between the first roll bag assembly (3) and the second roll bag assembly (4). The second roll bag assembly (4) is rotatably mounted on the main frame (1) and the roll bag cavity (10) can be closed or opened by rotation. The first roll bag assembly (3) and the second roll bag assembly (4) are respectively equipped with a belt, a drive roller, a driven roller, a tension roller and a drive motor. The belt is wound around the drive roller, the driven roller and the tension roller. The drive motor is connected to the drive roller. The drive motor drives the drive roller to rotate, thereby driving the belt to run. The belts of the first roll bag assembly (3) and the second roll bag assembly (4) run in the same direction. The roll bag cavity (10) is located between the first belt (31) of the first roll bag assembly (3) and the second belt (41) of the second roll bag assembly (4). Within the area defined by the drive roller and the driven roller of the first roll bag assembly (3) and the second roll bag assembly (4), the first roll bag assembly (3) and the second roll bag assembly (4) cooperate to complete the winding of the waste bag. The tensioning rollers of the first roll bag assembly (3) and the second roll bag assembly (4) are respectively connected to tension adjustment components, which can adjust the tensioning rollers in real time so that the belt is always tensioned.

2. The waste bag rolling mechanism according to claim 1, characterized in that: The first roll bag assembly (3) and the second roll bag assembly (4) are also respectively equipped with limit rollers; The driven rollers of the first roll bag assembly (3) include an upper driven roller (331) and a lower driven roller (332). The first limiting roller (35) is disposed inside the first belt (31) and between the upper driven roller (331) and the lower driven roller (332). In the initial state, the first belt (31) does not contact the first limiting roller (35). When the waste bag is rolled up, the first belt (31) is recessed towards the first limiting roller (35) and adheres to the first limiting roller (35). The second limiting roller (45) of the second roll bag assembly (4) is located between the second driving roller (42) and the second driven roller (43). The second belt (41) is wound around the second limiting roller (45). When the waste bag is rolled up, the second belt (41) is recessed in the direction of the second limiting roller (45) and attached to the second limiting roller (45).

3. The waste bag rolling mechanism according to claim 2, characterized in that: When the second roll bag assembly (4) is closed, the centers of the upper driven roller (331), the first limiting roller (35), the lower driven roller (332), the first driving roller (32), the second limiting roller (45), the second driven roller (43), and the upper driven roller (331) are connected in sequence to form a convex hexagonal area, and the roll bag cavity (10) is located in the convex hexagonal area.

4. The waste bag rolling mechanism according to claim 1, characterized in that: The tension adjustment component of the first tensioning roller (34) of the first roll bag assembly (3) is a tensioning cylinder (36). The two ends of the first tensioning roller (34) are respectively connected to the tensioning cylinder (36). The tensioning cylinder (36) is installed on the main frame (1). The main frame (1) has a first sliding groove (12) along the Z direction. The two ends of the first tensioning roller (34) are respectively inserted into the first sliding groove (12). The tensioning cylinder (36) can drive the first tensioning roller (34) to move along the first sliding groove (12). The tension adjustment component of the second tensioning roller (44) of the second roll bag assembly (4) is a tensioning spring. The first tension roller (44) is connected to the tension spring (46) at both ends. The other end of the tension spring (46) is connected to the connecting seat (494) of the support plate (49). The support plate (49) has a second slide groove (491). The two ends of the second tension roller (44) are respectively inserted into the second slide groove (491). The second tension roller (44) can move along the second slide groove (491) under the elastic force of the tension spring (46). Alternatively, the tension adjustment components of the first tension roller (34) and the second tension roller (44) are hydraulic cylinders and electric push rods.

5. The waste bag rolling mechanism according to claim 1, characterized in that: The second active roller (42), the second driven roller (43), the second tension roller (44), and the second limiting roller (45) of the second roll bag assembly (4) are arranged between two support plates (49). The second driven roller (43) passes through the main frame (1). The connecting seats (494) of the two support plates (49) are respectively connected to the swing cylinder (48). The swing cylinder (48) can drive the support plate (49) to rotate around the central axis of the second driven roller (43), thereby driving the second roll bag assembly (4) to close or open. A protrusion (492) is provided on the support plate (49) below the second slide groove (491), and an auxiliary rod (493) is inserted on the protrusion (492).

6. The waste bag rolling mechanism according to claim 1, characterized in that: On the main frame (1), above the first roll bag assembly (3), a film wrapping assembly (5) is provided; the film wrapping assembly (5) is provided with a film tube (51), a film winding active roller (52), a film winding driven roller (53) and a film winding motor (54). The film winding active roller (52) and the film winding driven roller (53) are arranged side by side and located below the film tube (51). The film (50) on the film tube (51) passes through the film winding gap between the film winding active roller (52) and the film winding driven roller (53). The film winding active roller (52) is connected to the film winding motor (54).

7. The waste bag rolling mechanism according to claim 1 or 6, characterized in that: On the main frame (1), a bag feeding roller (2) is provided above the first roll bag assembly (3). The bag feeding roller (2) is arranged at intervals with the wrapping assembly (5). The bag feeding roller (2) is connected to the bag feeding motor.

8. The waste bag rolling mechanism according to claim 7, characterized in that: The main frame (1) is provided with a bag inlet baffle assembly (7). The bag inlet baffle assembly (7) includes a first baffle (71), a second baffle (72), and a third baffle (73). The first baffle (71) is located on the top side of the main frame (1) and tilts downward toward the bag inlet (11). The second baffle (72) is located on the right and lower side of the bag feeding roller (2). The third baffle (73) is vertically located between the film wrapping assembly (5) and the bag feeding roller (2).

9. The waste bag rolling mechanism according to claim 8, characterized in that: The second baffle (72) includes an upper vertical baffle (721), a horizontal baffle (722), a lower vertical baffle (723), and an arc-shaped portion (724). The horizontal baffle (722) is horizontally arranged below the bag feeding roller (2). The upper vertical baffle (721) extends vertically upward from one end of the horizontal baffle (722) and is located on the right side of the bag feeding roller (2). The lower vertical baffle (723) extends vertically downward from the other end of the horizontal baffle (722). The arc-shaped portion (724)... 4) Connected to the lower end of the lower vertical baffle (723); the horizontal baffle (722) is connected to the upper vertical baffle (721) and the lower vertical baffle (723) by rounded corners; the upper vertical baffle (721), the horizontal baffle (722) and the lower vertical baffle (723) are respectively provided with baffles (725); the third baffle (73) and the lower vertical baffle (723) of the second baffle (72) have a gap, forming a waste bag feeding channel (20).

10. The waste bag rolling mechanism according to claim 1, characterized in that: A bag-rolling slope (6) is provided on the outer side of the bag-out side of the main frame (1). The bag-rolling slope (6) is located on the outer side of the bag-rolling cavity (10), and the bag-rolling surface of the bag-rolling slope (6) is an inclined surface.

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