Adjustable plastic film rolling mechanism

Abstract

The utility model discloses an adjustable plastic film rolling mechanism, and relates to the technical field of plastic film rolling. Comprising a mounting plate, one side of the mounting plate is rotatably connected with a rotating disc driven by a motor, one side of the rotating disc is rotatably connected with a rotating ring, the side, away from the rotating disc, of the rotating ring is fixedly connected with connecting rods distributed annularly, and the ends of the connecting rods are connected with connecting rings; an arc-shaped groove is formed in the portion, located on the adjacent connecting rod, between the connecting ring and the rotating ring, a penetrating sleeve is rotationally connected to the top inner wall of the arc-shaped groove, a rotating rod with the end penetrating through the penetrating sleeve is rotationally connected to the rotating disc, a material rolling roller is installed at the end of the rotating rod, and the end of the material rolling roller penetrates through an inner cavity of the connecting ring. According to the adjustable plastic film rolling mechanism, the diameter of a circle defined by the material rolling rollers can be adjusted through the material rolling rollers which are annularly distributed, so that the hole diameter of a hole formed after rolling can be adjusted in the rolling process of a plastic film.

Description

Technical Field

[0001] This utility model relates to the field of plastic film winding technology, specifically an adjustable plastic film winding mechanism. Background Technology

[0002] Plastic film is a thin film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It is used for packaging and as a coating layer. Plastic packaging and plastic packaging products are taking up an increasingly large share of the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, bringing great convenience to people's lives.

[0003] Plastic film winding is the process of continuously winding plastic film produced on the production line onto a core cylinder to form a film roll. Existing plastic film winding mechanisms are inconvenient to control the aperture of the holes formed after the plastic film is wound up when winding thin plastic film. Summary of the Invention

[0004] This invention provides an adjustable plastic film rolling mechanism to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable plastic film rolling mechanism, comprising a mounting plate, a turntable driven by a motor rotatably connected to one side of the mounting plate, a rotating ring rotatably connected to one side of the turntable, and a ring-shaped connecting rod fixedly connected to the side of the rotating ring away from the turntable, the end of the connecting rod being connected to a connecting ring, an arc-shaped groove being provided between the connecting ring and the rotating ring on the portion of the adjacent connecting rod, a sleeve being rotatably connected to the top inner wall of the arc-shaped groove, a rotating rod with its end passing through the sleeve being rotatably connected to the turntable, a rolling roller being mounted at the end of the rotating rod, and the end of the rolling roller passing through the inner cavity of the connecting ring.

[0006] Furthermore, a mounting block is movably connected to the turntable, a screw is rotatably connected to one side of the mounting block, a nut seat is threaded onto the screw, and an ear block connected to the nut seat is fixedly connected to the outer wall of the rotating ring.

[0007] Furthermore, each of the coil rollers is fitted with two fixing rings, and the outer wall of the fixing rings is connected to an arc-shaped block.

[0008] Furthermore, a fixed rod is fixedly connected to one side of the mounting plate, and a movable rod is rotatably connected to one side of the fixed rod. A tension adjusting roller is installed at the bottom end of the movable rod.

[0009] Furthermore, the fixed rod is L-shaped, a connecting block is hinged to the top of the movable rod, a spring connected to the fixed rod is connected to one side of the connecting block, an electric actuator is hinged to the top of the fixed rod, and a connecting block is hinged to one end of the electric actuator.

[0010] Furthermore, a guide roller for guiding the wound plastic film is rotatably connected to one side of the mounting plate.

[0011] Compared with the prior art, the present invention provides an adjustable plastic film winding mechanism, which has the following beneficial effects: In this adjustable plastic film winding mechanism, the rotating rod passing through the sleeve is distributed in a ring, so that the winding rollers at the end of the rotating rod are also distributed in a ring. When the rotating ring rotates relative to the turntable, the sleeve drives the rotating rod to rotate, so that the diameter of the circle formed by the ring-distributed winding rollers can be adjusted, and the size of the hole formed after the plastic film is wound can be adjusted during the winding process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the roll roller of this utility model;

[0014] Figure 3 This is an enlarged schematic diagram of point A in this utility model;

[0015] Figure 4 This is an enlarged schematic diagram of section B of this utility model;

[0016] Figure 5 This is an enlarged schematic diagram of point C in this utility model.

[0017] In the diagram: 1. Mounting plate; 2. Turntable; 3. Rotating ring; 4. Connecting rod; 5. Connecting ring; 6. Arc groove; 7. Through sleeve; 8. Rotating rod; 9. Roller; 10. Ear block; 11. Nut seat; 12. Mounting block; 13. Screw; 14. Fixing ring; 15. Arc block; 16. Fixing rod; 17. Movable rod; 18. Tension adjusting roller; 19. Spring; 20. Connecting block; 21. Electric actuator; 22. Guide roller. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-5 This utility model discloses an adjustable plastic film rolling mechanism, including a mounting plate 1. A turntable 2 driven by a motor is rotatably connected to one side of the mounting plate 1. A rotating ring 3 is rotatably connected to one side of the turntable 2. A connecting rod 4 distributed in a ring is fixedly connected to the side of the rotating ring 3 away from the turntable 2. A connecting ring 5 is connected to the end of the connecting rod 4. An arc-shaped groove 6 is provided between the connecting ring 5 and the rotating ring 3 on the adjacent part of the connecting rod 4. A sleeve 7 is rotatably connected to the top inner wall of the arc-shaped groove 6. A rotating rod 8 with its end passing through the sleeve 7 is rotatably connected to the turntable 2. A rolling roller 9 is installed at the end of the rotating rod 8. The end of the rolling roller 9 passes through the inner cavity of the connecting ring 5.

[0020] The motor driving the turntable 2 is mounted on the side of the mounting plate 1 away from the turntable 2.

[0021] The rotating rods 8 passing through the sleeve 7 are arranged in a ring, so that the winding rollers 9 at the ends of the rotating rods 8 are also arranged in a ring. The number of winding rollers 9 is the same as the number of connecting rods 4 and arc grooves 6, which is no less than three. When winding up the plastic film, the plastic film is wound on the winding rollers 9 that are arranged in a ring.

[0022] Specifically, a mounting block 12 is movably connected to the turntable 2, a screw 13 is rotatably connected to one side of the mounting block 12, a nut seat 11 is threaded onto the screw 13, and an ear block 10 connected to the nut seat 11 is fixedly connected to the outer wall of the rotating ring 3.

[0023] In this embodiment, a motor or rotating handle for driving the screw 13 is provided on one side of the mounting block 12. When the rotating ring 3 rotates relative to the turntable 2, the sleeve 7 rotates synchronously. Since one end of the rotating rod 8 is rotatably connected to the turntable 2, the rotation of the sleeve 7 can cause its inner wall to abut against the rotating rod 8, thereby causing the rotating rod 8 to drive the winding roller 9 to rotate. When the winding roller 9 rotates, the inner diameter of the circle formed by the ring-shaped winding rollers 9 can be adjusted.

[0024] Specifically, each of the winding rollers 9 is fitted with two fixing rings 14, and the outer wall of the fixing rings 14 is connected to an arc-shaped block 15.

[0025] In this embodiment, by providing two fixing rings 14 with arc-shaped blocks 15 on each roll 9, the arc-shaped blocks 15 on each roll 9 can limit the width of the rolled plastic film when the roll 9 is wound up.

[0026] A retaining ring 14 on the winding roller 9 is located at the end of the winding roller 9 away from the rotating rod 8, and the retaining ring 14 at the end of the winding roller 9 is threadedly connected to the winding roller 9.

[0027] Specifically, a fixed rod 16 is fixedly connected to one side of the mounting plate 1, and a movable rod 17 is rotatably connected to one side of the fixed rod 16. A tension adjusting roller 18 is installed at the bottom end of the movable rod 17.

[0028] The fixed rod 16 is L-shaped, and a connecting block 20 is hinged to the top of the movable rod 17. A spring 19 connected to the fixed rod 16 is connected to one side of the connecting block 20. An electric actuator 21 is hinged to the top of the fixed rod 16, and one end of the electric actuator 21 is hinged to the connecting block 20.

[0029] In this embodiment, the tension adjusting roller 18 plays a role in tension adjustment when winding up the plastic film.

[0030] The extension or retraction of the output shaft of the electric actuator 21 can drive the connecting block 20 to move, thereby causing the movable rod 17 to swing, which in turn adjusts the height of the tension adjusting roller 18 so that the cover plate forms tension on the wound plastic film.

[0031] Specifically, a guide roller 22 for guiding the wound plastic film is rotatably connected to one side of the mounting plate 1.

[0032] In summary, in this adjustable plastic film winding mechanism, the rotating rod 8 passing through the sleeve 7 is arranged in a ring, so that the winding roller 9 at the end of the rotating rod 8 is also arranged in a ring. When the rotating ring 3 rotates relative to the turntable 2, the sleeve 7 drives the rotating rod 8 to rotate, so that the diameter of the circle formed by the ring-shaped winding roller 9 can be adjusted, and the size of the hole formed after the plastic film is wound can be adjusted during the winding process.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable plastic film winding mechanism comprising a mounting plate (1), characterized in that: One side of the mounting plate (1) is rotatably connected with a rotating disc (2) driven by a motor, one side of the rotating disc (2) is rotatably connected with a rotating ring (3), the side, away from the rotating disc (2), of the rotating ring (3) is fixedly connected with connecting rods (4) distributed in a ring shape, the end of the connecting rod (4) is connected with a connecting ring (5), the part between the connecting ring (5) and the rotating ring (3) is provided with an arc-shaped groove (6) at the adjacent connecting rod (4), the top inner wall of the arc-shaped groove (6) is rotatably connected with a penetrating sleeve (7), the rotating disc (2) is rotatably connected with a rotating rod (8) penetrating the penetrating sleeve (7) at the end, the end of the rotating rod (8) is provided with a material rolling roller (9), the end of the material rolling roller (9) penetrates the inner cavity of the connecting ring (5).

2. An adjustable plastic film winding mechanism according to claim 1, characterized in that: The rotating disc (2) is movably connected with a mounting block (12), one side of the mounting block (12) is rotatably connected with a screw rod (13), the screw rod (13) is threadedly connected with a nut seat (11), the outer wall of the rotating ring (3) is fixedly connected with an ear block (10) connected with the nut seat (11).

3. An adjustable plastic film winding mechanism according to claim 1, wherein: Two fixed rings (14) are sleeved on each material rolling roller (9), the outer wall of the fixed ring (14) is connected with an arc-shaped block (15).

4. An adjustable plastic film winding mechanism according to claim 1, wherein: One side of the mounting plate (1) is fixedly connected with a fixed rod (16), one side of the fixed rod (16) is rotatably connected with a movable rod (17), the bottom end of the movable rod (17) is provided with a tension adjusting roller (18).

5. An adjustable plastic film winding mechanism according to claim 4, wherein: The fixed rod (16) is L-shaped, the top end of the movable rod (17) is hingedly connected with a connecting block (20), one side of the connecting block (20) is connected with a spring (19) connected with the fixed rod (16), the top of the fixed rod (16) is hingedly connected with an electric push rod (21), one end of the electric push rod (21) is hingedly connected with the connecting block (20).

6. An adjustable plastic film wrapping mechanism according to claim 1, wherein: One side of the mounting plate (1) is rotatably connected with a material guiding roller (22) for guiding the rolled plastic film.

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