A long roll bagging machine

By designing lifting, film feeding, film pulling, and bagging components for the long roll bagging machine, the problems of cumbersome processes and insufficient adaptability in the existing technology have been solved, achieving rapid film covering and efficient production.

CN224428041UActive Publication Date: 2026-06-30NANTONG SHILING INTELLIGENT TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG SHILING INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-30

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Abstract

This utility model discloses a long roll material bagging machine, including a feeding belt conveyor. The discharge end of the feeding belt conveyor is equipped with a feeding roller conveyor assembly for conveying the roll material. A lifting assembly for lifting and moving the roll material is installed on the upper end of the feeding roller conveyor assembly. At the end of the feeding roller conveyor assembly furthest from the feeding belt conveyor, a film feeding assembly, a film pulling assembly, and a bagging assembly are arranged sequentially from far to near. The discharge end of the film feeding assembly is located at the feeding end of the film pulling assembly, and the discharge end of the film pulling assembly matches the feeding end of the bagging assembly. Below the bagging assembly, at the discharge end of the feeding roller conveyor assembly, a main drive conveyor line for conveying the roll material is arranged. This utility model has a simple structure and reasonable design. The overall structure can conveniently and quickly bag roll materials and can adapt to roll materials of various lengths and diameters.
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Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, specifically a long roll bagging machine. Background Technology

[0002] A roll bagging machine is an industrial device used to automatically cover roll materials, such as paper, film, metal rolls, and textiles, with protective bags. It is mainly used to protect roll materials from damage such as dust, moisture, and scratches during transportation and storage, thus ensuring product quality.

[0003] The shortcomings of existing technology:

[0004] Currently, the process of wrapping rolls with film using roll bagging machines is cumbersome and time-consuming, and it cannot handle rolls of any length or diameter, thus affecting production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a long roll bagging machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a long roll material bagging machine, including a feeding belt line, a feeding roller conveyor assembly for conveying the roll material is provided at the discharge end of the feeding belt line, a lifting assembly for lifting and moving the roll material is installed at the upper end of the feeding roller conveyor assembly, and a film feeding assembly, a film pulling assembly, and a bagging assembly are arranged sequentially from far to near at the end of the feeding roller conveyor assembly away from the feeding belt line, the discharge end of the film feeding assembly is located at the feed end of the film pulling assembly, and the discharge end of the film pulling assembly matches the feed end of the bagging assembly, a main drive conveyor line for conveying the roll material is provided below the bagging assembly at the discharge end of the feeding roller conveyor assembly, and the feeding belt line, the feeding roller conveyor assembly, the lifting assembly, the film feeding assembly, the film pulling assembly, the bagging assembly, and the lower support of the main drive conveyor line are located on the same horizontal plane.

[0007] Preferably, the lifting component includes:

[0008] A first fixed frame is installed on the same horizontal plane as the feed belt line across the feed roller conveyor assembly at its lower end. Two linear guide rails are installed above the first fixed frame in the direction of roll material conveying.

[0009] A left-right moving motor is installed at one end of the first fixed frame and is connected to a drive wheel. A driven wheel is installed at the other end of the first fixed frame. The drive wheel and the driven wheel are connected by a synchronous belt.

[0010] The lifting rod is slidably mounted on two linear guide rails with lifting rod fixing seats. The lifting rod fixing seats are mounted on the synchronous belt, and the lifting rod is movably mounted on the lifting rod fixing seats. The left and right moving motor controls the left and right movement of the lifting rod fixing seats by controlling the operation of the synchronous belt.

[0011] An air shaft is installed at the bottom of the lifting rod and is used to insert into the center of the roll material;

[0012] A lifting motor is installed on the lifting rod fixing seat, and the lifting motor controls the lifting rod to move up and down.

[0013] Preferably, the film delivery assembly includes:

[0014] The second fixing frame is fixedly installed on the same horizontal plane as the feed belt;

[0015] A film roll mounting frame is fixedly installed on the second fixing frame and is used to mount film rolls;

[0016] A film feeding roller is mounted above the film roll mounting frame and is also mounted on the second fixing frame for conveying film to the film stretching assembly.

[0017] A film feeding control motor is mounted on the second fixed frame, and the film feeding control motor is connected to the film feeding roller and controls the rotation of the film feeding roller;

[0018] A film pressing roller is mounted on the second fixed frame, and a film pressing cylinder is connected to the film pressing roller. The film pressing cylinder is mounted on the second fixed frame and controls the film pressing roller to press the film.

[0019] A cutter is mounted on the second fixed frame. The cutter is used to cut the film. The cutter is connected to a cutter pressing cylinder, which is mounted on the second fixed frame and controls the operation of the cutter.

[0020] Preferably, the membrane stretching assembly includes:

[0021] The third fixing frame is installed on the same horizontal plane as the feed belt near the second fixing frame, and the third fixing frame is equipped with a sliding guide rail;

[0022] A film-stretching suction cup is provided on a sliding guide rail via a mounting base. The mounting base is equipped with a film-stretching cylinder and a film-stretching control motor. The film-stretching cylinder is connected to the film-stretching control motor, and the film-stretching control motor controls the film-stretching cylinder to drive the film-stretching suction cup to run.

[0023] A bag-opening suction cup is installed on the third fixed frame. The bag-opening suction cup is connected to a bag-opening cylinder, which is installed on the third fixed frame and connected to control the bag-opening suction cup to open the film.

[0024] Preferably, the bagging assembly includes:

[0025] The fourth fixing frame is installed on the same horizontal plane as the feed belt, close to the third fixing frame;

[0026] The bag support plate is slidably connected to the fourth fixed frame via a slide rail. The bag support plate is connected to a bag support control motor, which is mounted on the fourth fixed frame and controls the movement of the bag support plate.

[0027] A bag-covering control motor is installed on the fourth fixed frame. The bag-covering control motor is connected to the bag-supporting plate and controls the film to be covered on the bag-supporting plate.

[0028] Preferably, the feed roller conveyor assembly includes a fifth fixed frame, a blocking cylinder, and a lifting cylinder. The fifth fixed frame is installed close to the feed belt and on the same horizontal plane as the feed belt. The blocking cylinder and the lifting cylinder are installed on the fifth fixed frame and connected to a control component for control. The control component is installed on the fifth fixed frame. The blocking cylinder is used to block the roll material, and the lifting cylinder is used to lift the roll material to the lifting assembly.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] This long roll bagging machine has a feed roller conveyor assembly installed on one side of the feed belt line according to the roll conveying direction. Above the feed roller conveyor assembly, a lifting assembly for lifting and moving the roll is installed on the ground. A film feeding assembly, a film pulling assembly, and a bagging assembly are installed on the ground in sequence away from the lifting assembly. A main drive conveyor line for conveying the roll is installed near the feed roller conveyor assembly. The roll is fed into the feed belt line and conveyed to the feed roller conveyor assembly. The lifting assembly lifts and moves the roll to the bagging assembly. At the same time, the film feeding assembly feeds the film, the film pulling assembly pulls the film and opens the bag, and the bagging assembly supports the film and bags the roll. The overall structure can conveniently and quickly bag the roll and can adapt to rolls of different lengths and diameters. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0032] Figure 2 This is a detailed schematic diagram of the lifting component of this utility model;

[0033] Figure 3 This is a detailed schematic diagram of the membrane stretching assembly of this utility model;

[0034] Figure 4 This is a detailed schematic diagram of the bagging assembly of this utility model;

[0035] Figure 5 This is a detailed schematic diagram of the film delivery assembly of this utility model;

[0036] Figure 6 This is a detailed schematic diagram of the film delivery assembly of this utility model;

[0037] Figure 7 This is a detailed schematic diagram of the feed roller conveyor assembly of this utility model;

[0038] In the diagram: 1. Feed belt conveyor; 2. Feed roller conveyor assembly; 21. Fifth fixed frame; 22. Blocking cylinder; 23. Lifting cylinder; 3. Lifting assembly; 31. First fixed frame; 32. Linear guide rail; 33. Left and right moving motor; 331. Drive wheel; 332. Driven wheel; 333. Synchronous belt; 34. Lifting rod; 35. Lifting rod fixing seat; 36. Air shaft; 37. Lifting motor; 4. Film feeding assembly; 41. Second fixed frame; 42. Film roll mounting frame; 43. Film feeding roller; 4 4. Film feeding control motor; 45. Film pressing roller; 46. Film pressing cylinder; 47. Cutter; 48. Cutter pressing cylinder; 5. Film pulling assembly; 51. Third fixing frame; 52. Sliding guide rail; 53. Film pulling suction cup; 54. Mounting base; 55. Film pulling cylinder; 56. Film pulling control motor; 57. Bag opening suction cup; 58. Bag opening cylinder; 6. Bag covering assembly; 61. Fourth fixing frame; 62. Bag supporting plate; 63. Slide rail; 64. Bag supporting control motor; 65. Bag covering control motor; 7. Main drive conveyor line. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integrated connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0043] Example

[0044] Please see Figure 1-7 As shown, this utility model provides a technical solution for a long roll material bagging machine: It includes a feeding belt 1, with a feeding roller conveyor assembly 2 for conveying the roll material at the discharge end of the feeding belt 1. A lifting assembly 3 for lifting and moving the roll material is installed on the upper end of the feeding roller conveyor assembly 2. At the end of the feeding roller conveyor assembly 2 furthest from the feeding belt 1, a film feeding assembly 4, a film pulling assembly 5, and a bagging assembly 6 are arranged sequentially from far to near. The discharge end of the film feeding assembly 4 is located at the feeding end of the film pulling assembly 5, and the discharge end of the film pulling assembly 5 matches the feeding end of the bagging assembly 6. The discharge end of the feeding roller conveyor assembly 2 is located at the... The main drive conveyor line 7 for conveying the roll material is set below. The feeding belt line 1, the feeding roller conveyor line assembly 2, the lifting assembly 3, the film feeding assembly 4, the film pulling assembly 5, the bagging assembly 6, and the lower support of the main drive conveyor line 7 are all located on the same horizontal plane. The roll material is put into the feeding belt line 1 and conveyed to the feeding roller conveyor line assembly 2. The lifting assembly 3 lifts and moves the roll material to the bagging assembly 6. At the same time, the film feeding assembly 4 feeds the film, the film pulling assembly 5 pulls the film and opens the bag, and the bagging assembly 6 supports the film and puts the film on the roll material. The overall structure can conveniently and quickly put the film on the roll material and can adapt to roll materials of various lengths and diameters.

[0045] The feed roller conveyor assembly 2 includes a fifth fixed frame 21, a blocking cylinder 22, and a lifting cylinder 23. The fifth fixed frame 21 is installed close to the feed belt 1 on the same horizontal plane as the feed belt 1. The blocking cylinder 22 and the lifting cylinder 23 are installed on the fifth fixed frame 21 and are connected to a control component to control their operation. The blocking cylinder 22 is used to block the roll material, and the lifting cylinder 23 is used to lift the roll material to the lifting assembly 3. The lifting assembly 3 includes a first fixed frame 31, a left and right moving motor 33, a lifting rod 34, an air shaft 36, and a lifting motor 37. The first fixed frame 31 spans the feed roller conveyor assembly 2 and is installed on the same horizontal plane as the feed belt 1. Two linear guide rails 3 are installed above the first fixed frame 31 in the direction of roll material conveying. 2; The left and right moving motor 33 is installed at one end of the first fixed frame 31, and the left and right moving motor 33 is connected to the driving wheel 331. The other end of the first fixed frame 31 is installed with the driven wheel 332. The driving wheel 331 and the driven wheel 332 are connected by the synchronous belt 333. The lifting rod fixing seat 35 is slidably installed on the two linear guide rails 32. The lifting rod fixing seat 35 is installed on the synchronous belt 333. The lifting rod 34 is movably installed on the lifting rod fixing seat 35. The left and right moving motor 33 controls the left and right movement of the lifting rod fixing seat 35 by controlling the operation of the synchronous belt 333. The air shaft 36 is installed at the bottom of the lifting rod 34. The air shaft 36 is used to insert into the center of the roll material. The lifting motor 37 is installed on the lifting rod fixing seat 35. The lifting motor 37 controls the lifting rod 34 to move up and down.

[0046] During operation, the feed belt 1 conveys the roll material to the feed roller conveyor assembly 2. The control unit controls the blocking cylinder 22 to rise and block the roll material. At the same time, the control unit controls the lifting cylinder 23 to lift the roll material. The lifting motor 37 controls the lifting rod 34 to descend, aligning the air shaft 36 on the lifting rod 34 with the center of the roll material. Then, the left and right moving motor 33 drives the lifting rod 34 to move towards the center of the roll material and insert the air shaft 36 into the center of the roll material. Finally, the lifting motor 37 controls the lifting rod 34 to lift the roll material to the specified height.

[0047] Film feeding assembly 4 includes a second fixing frame 41, a film roll mounting frame 42, a film feeding roller 43, a film feeding control motor 44, a film pressing roller 45, and a cutter 47. The second fixing frame 41 is fixedly installed on the same horizontal plane as the feed belt 1; the film roll mounting frame 42 is fixedly installed on the second fixing frame 41 and is used to install the film roll; the film feeding roller 43 is installed above the film roll mounting frame 42 and on the second fixing frame 41, and is used to convey film to the film stretching assembly 5; the film feeding control motor 44 is installed on the second fixing frame 41 and is connected to the film feeding roller 43. The film feeding roller 43 is controlled to rotate; the film pressing roller 45 is mounted on the second fixed frame 41, and the film pressing roller 45 is connected to the film pressing cylinder 46. The film pressing cylinder 46 is mounted on the second fixed frame 41 and controls the film pressing roller 45 to press the film; the cutter 47 is mounted on the second fixed frame 41 and is used to cut the film. The cutter 47 is connected to the cutter pressing cylinder 48, and the cutter pressing cylinder 48 is mounted on the second fixed frame 41 and controls the operation of the cutter 47; the film pulling assembly 5 includes a third fixed frame 51, a film pulling suction cup 53, and a bag opening suction cup 57. The third fixed frame 51 is close to the second fixed frame 41. Installed on the same horizontal plane as the feed conveyor belt 1, the third fixed frame 51 is equipped with a sliding guide rail 52; the sliding guide rail 52 is connected to a film-pulling suction cup 53 via a mounting base 54, the mounting base 54 is equipped with a film-pulling cylinder 55 and a film-pulling control motor 56, the film-pulling cylinder 55 is connected to the film-pulling control motor 56, and the film-pulling control motor 56 controls the film-pulling cylinder 55 to drive the film-pulling suction cup 53 to run; the bag-opening suction cup 57 is installed on the third fixed frame 51, and the bag-opening suction cup 57 is connected to a bag-opening cylinder 58, the bag-opening cylinder 58 is installed on the third fixed frame 51 and connected to control the bag-opening suction cup 57. 7. The film is opened; the bagging assembly 6 includes a fourth fixing frame 61, a bag-supporting plate 62, and a bagging control motor 65. The fourth fixing frame 61 is installed on the same horizontal plane as the feed belt 1 near the third fixing frame 51. The fourth fixing frame 61 is slidably connected to the bag-supporting plate 62 by a slide rail 63. The bag-supporting plate 62 is connected to the bag-supporting control motor 64. The bag-supporting control motor 64 is installed on the fourth fixing frame 61 and controls the movement of the bag-supporting plate 62. The bagging control motor 65 is installed on the fourth fixing frame 61. The bagging control motor 65 is connected to the bag-supporting plate 62 and controls the film to be covered on the bag-supporting plate 62.

[0048] In use, the operator installs the film roll onto the film roll mounting frame 42, pulls the film past the cutter 47, lowers the film pressing cylinder 46, and the film pressing cylinder 46 controls the film pressing roller 45 to press the film. The film feeding control motor 44 controls the film feeding roller 43 to rotate and convey the film to the film stretching assembly 5. After conveying the film to a certain distance, the film stretching control motor 56 controls the film stretching cylinder 55 to run. The film stretching cylinder 55 drives the film stretching suction cup 53 to descend and suck up the film. Then, the film stretching control motor 56 controls the film stretching cylinder 55 to run and causes the film stretching suction cup 53 to rise. The film stretching control motor 56 and the film feeding control motor 44 respectively control the film stretching suction cup 53 and the film feeding roller 43 to pull the film away from the film feeding assembly 4. After pulling out a specified length, the film stretching control motor 56 and the film feeding control motor 44 stop pulling the film, and the cutter pressing cylinder 48 controls the film stretching cylinder 47 to move away from the film feeding assembly 4. The cutting blade 47 cuts the film. After cutting, the cutting blade pressing cylinder 48 resets, the film pulling suction cup 53 pulls the film to the bag opening suction cup 57, and the bag opening cylinder 58 controls the bag opening suction cup 57 to pull the film open. The bag supporting control motor 64 controls the bag supporting plate 62 to retract, and the bag covering control motor 65 controls the bag supporting plate 62 to move towards the bag opening suction cup 57, inserting the bag supporting plate 62 into the film opened by the bag opening suction cup 57 and opening the bag supporting plate 62 so that the film is tightly wrapped around the bag supporting plate 62. Then, the bag covering control motor 65 controls the bag supporting plate 62 to move towards the lifting assembly 3. At this time, the lifting assembly 3 has prepared the roll material. The bag supporting plate 62 wraps the stretched film around the roll material, and the bag supporting plate 62 retracts and separates from the film. Finally, the lifting assembly 3 places the wrapped roll material on the main drive conveyor line 7 and transports it to the next working mechanism.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A long roll bagging machine, comprising a feeding belt (1), characterized in that: The feed conveyor belt (1) is provided with a feed roller conveyor assembly (2) for conveying the roll material at its discharge end. The feed roller conveyor assembly (2) is equipped with a lifting assembly (3) for lifting and moving the roll material at its upper end. At the end of the feed roller conveyor assembly (2) away from the feed conveyor belt (1), a film feeding assembly (4), a film pulling assembly (5), and a bagging assembly (6) are arranged in sequence from far to near. The discharge end of the film feeding assembly (4) is located at the feed end of the film pulling assembly (5). The discharge end of component (5) is matched with the feed end of the bagging component (6). The discharge end of the feed roller conveyor assembly (2) is located below the bagging component (6) and a main drive conveyor line (7) for conveying the roll material is provided. The feed belt line (1), the feed roller conveyor assembly (2), the lifting assembly (3), the film feeding assembly (4), the film pulling assembly (5), the bagging component (6) and the lower support of the main drive conveyor line (7) are located on the same horizontal plane.

2. The long roll bagging machine according to claim 1, characterized in that: The lifting component (3) includes: The first fixed frame (31) is installed on the same horizontal plane as the feed belt line (1) across the feed roller conveyor assembly (2) at its lower end. Two linear guide rails (32) are installed above the first fixed frame (31) in the direction of roll material conveying. A left-right moving motor (33) is installed at one end of the first fixed frame (31), and the left-right moving motor (33) is connected to a drive wheel (331). A driven wheel (332) is installed at the other end of the first fixed frame (31). The drive wheel (331) and the driven wheel (332) are connected by a synchronous belt (333). The lifting rod (34) is slidably mounted on two linear guide rails (32) with lifting rod fixing seats (35). The lifting rod fixing seats (35) are mounted on the synchronous belt (333). The lifting rod (34) is movably mounted on the lifting rod fixing seats (35). The left and right moving motor (33) controls the left and right movement of the lifting rod fixing seats (35) by controlling the operation of the synchronous belt (333). An air shaft (36) is installed at the bottom of the lifting rod (34) and is used to insert into the center of the roll material; A lifting motor (37) is installed on the lifting rod fixing seat (35), and the lifting motor (37) controls the lifting rod (34) to move up and down.

3. A long roll bagging machine according to claim 1, characterized in that: The film delivery assembly (4) includes: The second fixing frame (41) is fixedly installed on the same horizontal plane as the feed belt (1); A cylindrical film roll mounting frame (42) is fixedly installed on the second fixing frame (41) and is used to install cylindrical film rolls; Film feeding roller (43), which is mounted above the film roll mounting frame (42) and mounted on the second fixing frame (41), is used to convey film to the film pulling assembly (5). A film feeding control motor (44) is mounted on the second fixed frame (41). The film feeding control motor (44) is connected to the film feeding roller (43) and controls the film feeding roller (43) to rotate. A pressure roller (45) is mounted on the second fixed frame (41). The pressure roller (45) is connected to a pressure cylinder (46). The pressure cylinder (46) is mounted on the second fixed frame (41) and controls the pressure roller (45) to press the film. A cutter (47) is mounted on the second fixed frame (41). The cutter (47) is used to cut the film. The cutter (47) is connected to a cutter pressing cylinder (48). The cutter pressing cylinder (48) is mounted on the second fixed frame (41) and controls the operation of the cutter (47).

4. A long roll bagging machine according to claim 3, characterized in that: The membrane stretching assembly (5) includes: The third fixing frame (51) is installed on the same horizontal plane as the feed belt (1) near the second fixing frame (41), and the third fixing frame (51) is equipped with a sliding guide rail (52). A film-pulling suction cup (53) is provided on the sliding guide rail (52) via a mounting base (54). The mounting base (54) is equipped with a film-pulling cylinder (55) and a film-pulling control motor (56). The film-pulling cylinder (55) is connected to the film-pulling control motor (56), and the film-pulling control motor (56) controls the film-pulling cylinder (55) to drive the film-pulling suction cup (53) to run. A bag-opening suction cup (57) is installed on the third fixed frame (51). The bag-opening suction cup (57) is connected to a bag-opening cylinder (58). The bag-opening cylinder (58) is installed on the third fixed frame (51) and connected to control the bag-opening suction cup (57) to open the film.

5. A long roll bagging machine according to claim 4, characterized in that: The bagging assembly (6) includes: The fourth fixing frame (61) is installed on the same horizontal plane as the feed belt (1) near the third fixing frame (51); The bag support plate (62) is slidably connected to the fourth fixed frame (61) by means of a slide rail (63). The bag support plate (62) is connected to a bag support control motor (64). The bag support control motor (64) is installed on the fourth fixed frame (61) and controls the movement of the bag support plate (62). A bagging control motor (65) is installed on the fourth fixing frame (61). The bagging control motor (65) is connected to the bag support plate (62) and controls the film to be covered on the bag support plate (62).

6. A long roll bagging machine according to claim 1, characterized in that: The feed roller conveyor assembly (2) includes a fifth fixed frame (21), a blocking cylinder (22), and a lifting cylinder (23). The fifth fixed frame (21) is installed close to the feed belt (1) on the same horizontal plane as the feed belt (1). The blocking cylinder (22) and the lifting cylinder (23) are installed on the fifth fixed frame (21) and connected to a control component for control. The control component is installed on the fifth fixed frame (21). The blocking cylinder (22) is used to block the roll material, and the lifting cylinder (23) is used to lift the roll material to the lifting assembly (3).