Packaging bag film roll winding device

Abstract

The utility model relates to the technical field of packaging bag film roll winding, in particular to a packaging bag film roll winding device which comprises two side plates, an arc-shaped frame and a winding roller, sliding plates are arranged in the arc-shaped frame at equal intervals in a sliding mode, and rotatable pressing rollers are installed at the ends, close to the winding roller, of the sliding plates through a plurality of first springs. And rotating frames are rotationally arranged at the symmetrical positions of the top end of the left side of the arc-shaped frame, a feeding compaction roller is jointly connected between the other ends of the rotating frames, and an elastic limiting assembly is installed at the top end of the left side of the arc-shaped frame. According to the utility model, the plurality of compression rollers are respectively arranged at different positions, so that the packaging bag film is compacted at the feeding position, the winding position and the ring layer switching position, the packaging bag film is kept compact at each position in the winding process, the influence of deflection on the deflection is reduced, and the packaging bag film is tightly attached to the winding roller.

Description

Technical Field

[0001] The utility model relates to the technical field of winding of packaging bag films, and particularly relates to a winding device for packaging bag films. Background Art

[0002] A packaging bag is a bag made of plastic as raw material and is used for various articles in production and life. It is widely used in daily life and industrial production, making it convenient to transport and store goods during the production and circulation process. Commonly used plastic packaging bags are mostly made of polyethylene film to form a packaging bag film. This film is non-toxic and can be used to hold food. When the existing packaging bag film is produced, a winding device is often required to wind it for easy storage or transportation. The main equipment for winding is a winding roller, and the flat packaging bag film is wound around the winding roller by the continuous rotation of the winding roller.

[0003] In the existing winding device for packaging bag films, only the winding tension of the winding roller is often used to ensure the tightening tension of the packaging bag film. However, due to the certain toughness of the packaging bag film itself, the packaging bag film is not tight enough during the winding process and has a certain deflection, that is, it cannot fit tightly on the winding roller, resulting in a certain gap between the layers of the packaging bag film and possible folding or bending, making the surface of the packaging bag film not flat enough when laid flat again, affecting subsequent use.

[0004] Therefore, it is very necessary to invent a winding device for packaging bag films to solve the above problems. Content of the Utility Model

[0005] To solve the deficiencies of the prior art, the purpose of the utility model is to provide a winding device for packaging bag films, which solves the problem in the prior art that only the winding tension of the winding roller is used to ensure the tightening tension of the packaging bag film. However, due to the certain toughness of the packaging bag film itself, the packaging bag film is not tight enough during the winding process and has a certain deflection, that is, it cannot fit tightly on the winding roller, resulting in a certain gap between the layers of the packaging bag film and possible folding or bending, making the surface of the packaging bag film not flat enough when laid flat again, affecting subsequent use.

[0006] To achieve the above objectives, the utility model adopts the following technical solutions:

[0007] A packaging bag film winding device, comprising two side plates, an arc-shaped frame detachably arranged between the two side plates, and a winding roller detachably and rotatably arranged between the two side plates and located inside the arc-shaped frame. The arc-shaped frame is provided with sliding plates that can lock the sliding distance at equidistant positions and slide towards or away from the center of the winding roller. One end of the sliding plate close to the winding roller is provided with a rotatable pressure roller through a plurality of first springs. The pressure roller can contact the surface of the packaging bag film to be wound. At symmetrical positions at the top left end of the arc-shaped frame, rotating frames are rotatably arranged. A feeding compaction roller that can rotatably abut against the packaging bag film to be wound is commonly connected between the other ends of the rotating frames. And an elastic limiting component that can elastically limit the rotation of the rotating frame is installed at the top left end of the arc-shaped frame.

[0008] As a preferred solution of the present utility model, clamping seats are installed at symmetrical positions at the top left end of the arc-shaped frame. One end of the rotating frame is rotatably connected to the clamping seat. A U-shaped connecting frame is commonly connected between the other ends of the plurality of rotating frames. The feeding compaction roller is detachably and rotatably clamped inside the U-shaped connecting frame.

[0009] As a preferred solution of the present utility model, the elastic limiting component includes an extension plate extending from the top surface of the left side of the arc-shaped frame, an arc-shaped guide rod detachably installed on the rotating frame, and a second spring sleeved on the arc-shaped guide rod. And the arc-shaped guide rod slidably penetrates through the extension plate in an arc shape and extends to the top surface of the extension plate. The second spring is located between the rotating frame and the extension plate.

[0010] As a preferred solution of the present utility model, a screw rod is rotatably abutted against the middle of the side wall of the sliding plate away from the winding roller. The screw rod is threadedly penetrated through the arc-shaped frame and extends to the outside of the arc-shaped frame. And one end of the screw rod located outside the arc-shaped frame is connected with a rotating frame. And limiting columns that can slidably penetrate through the arc-shaped frame are connected at symmetrical positions on the side wall of the sliding plate away from the winding roller.

[0011] As a preferred solution of the present utility model, the other ends of the plurality of first springs away from the sliding plate are commonly connected with a U-shaped clamping frame. The pressure roller is detachably and rotatably clamped inside the U-shaped clamping frame.

[0012] As a preferred solution of the present utility model, sliding holes for the limiting columns to slidably penetrate through are opened at positions of the arc-shaped frame corresponding to each limiting column.

[0013] As a preferred solution of the present utility model, side clamping grooves with open ends at the left ends are opened on the side plates. A rotating shaft is detachably penetrated inside the winding roller. Sleeves are rotatably sleeved at positions of both ends of the rotating shaft corresponding to each side clamping groove. The sleeves are detachably clamped inside the side clamping grooves.

[0014] In the above technical solution, the technical effects and advantages provided by the present utility model:

[0015] In the present utility model, during the feeding process, the packaging bag film to be wound is pressed downward by the feeding compaction roller to a position parallel to the bottom end of the winding roller, so as to ensure the feeding and winding pressure of the packaging bag film. During the process, the elastic limiting component elastically limits the longitudinal position of the feeding compaction roller, and the toughness of the packaging bag film itself is offset through elastic limiting. When the packaging bag film enters the arc-shaped frame and gradually winds around the surface of the winding roller, by adjusting the positions of the sliding plate and the winding roller, the pressing roller can press the packaging bag film onto the surface of the winding roller. As the winding process progresses, the diameter of the winding roller continuously expands, and the pressing roller is continuously extruded outward. During this process, the first spring actively contracts to ensure that under the elastic limit of the first spring, the pressing roller always keeps in contact with and presses the packaging bag film. The plurality of pressing rollers are respectively arranged at different positions, so as to compact the packaging bag film at the feeding position, the winding position and the layer conversion position, so that the packaging bag film remains tight at each position during the winding process, reduces the deflection and influences the deflection, makes it tightly adhere to the winding roller, and further avoids a certain gap between the layers of the packaging bag film, thereby avoiding a certain fold or bend on the surface, ensuring the flatness of the surface of the packaging bag film when it is laid flat again later, and facilitating subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic front view structure diagram of the present utility model;

[0018] Figure 3 is a schematic side view structure diagram of the present utility model;

[0019] Figure 4 is a schematic top view structure diagram of the present utility model.

[0020] DESCRIPTION OF THE REFERENCE NUMERALS:

[0021] 1, side plate; 2, arc-shaped frame; 3, side card slot; 4, sleeve; 5, rotating shaft; 6, winding roller; 7, screw; 8, rotating frame; 9, sliding plate; 10, sliding hole; 11, limiting column; 12, first spring; 13, U-shaped clamping frame; 14, pressing roller; 15, extension plate; 16, clamping seat; 17, rotating frame; 18, U-shaped connecting frame; 19, feeding compaction roller; 20, arc-shaped guide rod; 21, second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model, and cannot be used to limit the protection scope of the present utility model.

[0023] The present utility model provides as Figures 1-4A winding device for a packaging bag film shown in the figure includes two side plates 1, an arc-shaped frame 2 detachably arranged between the two side plates 1, and a winding roller 6 detachably and rotatably arranged between the two side plates 1 and located inside the arc-shaped frame 2. At equidistant positions inside the arc-shaped frame 2, there are sliding plates 9 that slide towards or away from the center of the winding roller 6 and can lock the sliding distance. One end of the sliding plate 9 close to the winding roller 6 is installed with a rotatable pressure roller 14 through a plurality of first springs 12. The pressure roller 14 can contact the surface of the packaging bag film to be wound. At symmetrical positions at the top left of the arc-shaped frame 2, there are rotatable frames 17. A feeding compaction roller 19 that can rotatably abut against the packaging bag film to be wound is jointly connected between the other ends of the rotatable frames 17. And an elastic limiting component is installed at the top left of the arc-shaped frame 2 to elastically limit the rotation of the rotatable frame 17. By locking the position of the sliding plate 9, the distance between the pressure roller 14 and the winding roller 6 can be macroscopically adjusted. During the winding process, the existence of the first springs 12 can finely adjust the position of the pressure roller 14 and ensure that it is always in contact with the packaging bag film.

[0024] At symmetrical positions at the top left of the arc-shaped frame 2, there are clamping seats 16 installed. One end of the rotatable frame 17 is rotatably connected to the clamping seat 16. A U-shaped connecting frame 18 is jointly connected between the other ends of the plurality of rotatable frames 17. The feeding compaction roller 19 is detachably and rotatably clamped inside the U-shaped connecting frame 18. The U-shaped connecting frame 18 facilitates the rotation of the feeding compaction roller 19 and also facilitates its disassembly.

[0025] The elastic limiting component includes an extension plate 15 extending from the top surface on the left side of the arc-shaped frame 2, an arc-shaped guide rod 20 detachably installed on the rotatable frame 17, and a second spring 21 sleeved on the arc-shaped guide rod 20. And the arc-shaped guide rod 20 slides through the extension plate 15 in an arc shape and extends to the top surface of the extension plate 15. The second spring 21 is located between the rotatable frame 17 and the extension plate 15. During the feeding process of the packaging bag film, the feeding compaction roller 19 provides a certain winding tension for the packaging bag film, and by means of the arc-shaped guide rod 20 sliding along the extension plate 15 in an arc shape and compressing the second spring 21, the toughness and deflection of the packaging bag film are offset.

[0026] The middle part of the side wall of the sliding plate 9 far from the winding roller 6 is rotationally abutted against a screw rod 7. The screw rod 7 is threadedly penetrated through the arc-shaped frame 2 and extends to the outside of the arc-shaped frame 2. And one end of the screw rod 7 located outside the arc-shaped frame 2 is connected with a rotating frame 8. And at symmetrical positions on the side wall of the sliding plate 9 far from the winding roller 6, there are limiting columns 11 that can slide through the arc-shaped frame 2. At positions of the arc-shaped frame 2 adapted to each limiting column 11, there are sliding holes 10 for the limiting columns 11 to slide through. By manually applying force to the rotating frame 8, the screw rod 7 is driven to rotate inside the arc-shaped frame 2. Then, under the limitation of the limiting columns 11 sliding along the sliding holes 10, the sliding plate 9 slides towards or away from the center of the winding roller 6, thereby adjusting the distance between the pressure roller 14 and the winding roller 6.

[0027] One end of a plurality of first springs 12 away from the sliding plate 9 is commonly connected with a U-shaped clamping frame 13. A pressing roller 14 is detachably and rotatably clamped in the U-shaped clamping frame 13. The side plate 1 is provided with a side clamping groove 3 with an open end at the left end. A rotating shaft 5 is detachably inserted into the winding roller 6. At both ends of the rotating shaft 5, sleeves 4 are rotatably sleeved at positions corresponding to each side clamping groove 3. The sleeves 4 are detachably clamped in the side clamping grooves 3. When it is necessary to disassemble the winding roller 6 with saturated winding, it is only necessary to remove the rotating shaft 5 and the sleeves 4 from the open end at the left side of the side clamping groove 3.

[0028] In the present utility model, during the feeding process, the packaging bag film to be wound is pressed downward by the feeding compaction roller 19 to a position parallel to the bottom end of the winding roller 6, so as to ensure the feeding and winding pressure of the packaging bag film. During the process, the elastic limiting component elastically limits the longitudinal position of the feeding compaction roller 19, and the toughness of the packaging bag film itself is offset through elastic limiting. When the packaging bag film enters the arc-shaped frame 2 and gradually winds around the surface of the winding roller 6, by adjusting the positions of the sliding plate 9 and the winding roller 6, the pressing roller 14 can press the packaging bag film onto the surface of the winding roller 6. As the winding process progresses, the diameter of the winding roller 6 continuously expands, and the pressing roller 14 is continuously extruded outward. During this process, the first spring 12 actively contracts, ensuring that the pressing roller 14 always keeps in contact with and presses the packaging bag film under the elastic limit of the first spring 12. The plurality of pressing rollers 14 are respectively arranged at different positions, and thus the packaging bag film is compacted at the feeding position, the winding position and the layer conversion position, so that the packaging bag film is kept tight at each position during the winding process, the deflection is reduced, and it tightly adheres to the winding roller 6, thereby avoiding a certain gap between the layers of the packaging bag film, and thus avoiding a certain folding or bending on the surface, ensuring the flatness of the surface of the packaging bag film for subsequent flat use again, and facilitating subsequent use.

[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present utility model.

Claims

1. A winding device for a packaging bag film, characterized in that: It includes two side plates (1), an arc-shaped frame (2) detachably arranged between the two side plates (1), and a winding roller (6) detachably and rotatably arranged between the two side plates (1) and located inside the arc-shaped frame (2). At equidistant positions inside the arc-shaped frame (2), there are sliding plates (9) slidably arranged in the direction of approaching or departing from the center of the winding roller (6) and capable of locking the sliding distance. One end of the sliding plate (9) close to the winding roller (6) is provided with a rotatable pressure roller (14) through a plurality of first springs (12). The pressure roller (14) can contact the surface of the packaging bag film to be wound. At symmetrical positions at the left top end of the arc-shaped frame (2), there are rotatable frames (17) respectively. A feeding compaction roller (19) capable of rotatably abutting against the packaging bag film to be wound is jointly connected between the other ends of the rotatable frames (17). And at the left top end of the arc-shaped frame (2), there is an elastic limiting component capable of elastically limiting the rotation of the rotatable frame (17).

2. The winding device for a packaging bag film according to claim 1, characterized in that: At symmetrical positions at the left top end of the arc-shaped frame (2), there are clamping seats (16) respectively. One end of the rotatable frame (17) is rotatably connected to the clamping seat (16). A U-shaped connecting frame (18) is jointly connected between the other ends of the plurality of rotatable frames (17). The feeding compaction roller (19) is detachably and rotatably clamped inside the U-shaped connecting frame (18).

3. The winding device for a packaging bag film according to claim 1, wherein: The elastic limiting component includes an extension plate (15) extending from the left top surface of the arc-shaped frame (2), an arc-shaped guide rod (20) detachably installed on the rotatable frame (17), and a second spring (21) sleeved on the arc-shaped guide rod (20). And the arc-shaped guide rod (20) slidably penetrates through the extension plate (15) in an arc shape and extends to the top surface of the extension plate (15). The second spring (21) is located between the rotatable frame (17) and the extension plate (15).

4. A winding device for a packaging bag film according to claim 1, wherein: In the middle of the side wall of the sliding plate (9) far from the winding roller (6), there is a rotatable abutment against a screw rod (7). The screw rod (7) is threadedly penetrated through the arc-shaped frame (2) and extends to the outside of the arc-shaped frame (2). And one end of the screw rod (7) located outside the arc-shaped frame (2) is connected with a rotating frame (8). And at symmetrical positions on the side wall of the sliding plate (9) far from the winding roller (6), there are limiting columns (11) respectively which can slidably penetrate through the arc-shaped frame (2).

5. A winding device for a packaging bag film according to claim 1, characterized in that: One ends of the plurality of first springs (12) far from the sliding plate (9) are jointly connected with a U-shaped clamping frame (13). The pressure roller (14) is detachably and rotatably clamped inside the U-shaped clamping frame (13).

6. A winding device for a packaging bag film according to claim 4, characterized in that: At positions of the arc-shaped frame (2) adapted to each limiting column (11), there are sliding holes (10) for the limiting column (11) to slidably penetrate through.

7. A winding device for a packaging bag film according to claim 1, characterized in that: The side plate (1) is provided with a side card slot (3) with an open left end. A rotating shaft (5) is detachably penetrated inside the winding roller (6). At positions where both ends of the rotating shaft (5) are adapted to each side card slot (3), there are sleeve barrels (4) rotatably sleeved respectively. The sleeve barrel (4) is detachably clamped inside the side card slot (3).

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