A kind of anti-deviation mechanism for coreless winding film winding machine

Abstract

The utility model discloses a kind of anti-deviation mechanisms for coreless winding film winding machine, including rack, film roll is wound in the inside of the rack, the front of the rack is fixedly connected with extension plate, the side of the extension plate away from rack is fixedly connected with connecting frame, the both sides in the inside of connecting frame are provided with adjusting lever, the side of the adjusting lever away from connecting frame is rotatably connected with gyro wheel by pin shaft, the gyro wheel is located the both sides of film roll and is slidably connected with film roll, the both sides in the inside of connecting frame are provided with screw sleeve, the side of adjusting lever close to screw sleeve extends to the outside of screw sleeve, screw sleeve and adjusting lever are rotatably connected by pin shaft, the outside of adjusting lever is fixedly connected with stress lever.The utility model is by the adjusting lever and gyro wheel of symmetrical arrangement, make gyro wheel and film roll edge sliding contact, real-time sensing offset, while film roll is offset and is pressed trigger gyro wheel support, form preliminary rectification force, realize passive anti-deviation response, break the rigid constraint of traditional limit ring.

Description

Technical Field

[0001] This utility model relates to the field of film winding machine technology, specifically to an anti-deviation mechanism for a coreless winding film winding machine. Background Technology

[0002] Coreless winding film machine is a device specifically designed to wind plastic film into rolls without using traditional rigid paper tubes or plastic tubes as inner cores during the winding process.

[0003] For example, patent application number 202220313574.4 published on the China Patent Network, entitled "Automatic Control Anti-deviation Correction Mechanism for Tube Rolling Machine," includes a mounting plate with side plates on one side of the mounting plate. A guide groove is formed at the lower end of each side plate, and a limiting block is located within the guide groove. A shaft is positioned between the two limiting blocks, and a support structure is mounted on the shaft. The lower side of each limiting block, away from the shaft, is fixedly connected to a first hydraulic cylinder. A motor is fixedly mounted on the upper side of the side plate, and the motor's rotation shaft passes through the side plate and is fixedly connected to a guide roller shaft. Second hydraulic cylinders are located on both sides of the guide roller shaft on the side plate, and the stroke ends of the second hydraulic cylinders are fixedly connected to limiting rings, which are sleeved on the outside of the guide roller shaft. This correction mechanism has a simple structure, is easy to operate, and has strong versatility. It can limit the movement of raw materials of different sizes, with a significant correction effect, effectively improving the production quality of the correction mechanism.

[0004] However, the existing film winding machine has a relatively simple structure, mainly relying on the limiting rings fitted on the surface of the film roll for restriction. During the stretching process, the film roll will still tilt due to misalignment, which will affect the winding effect.

[0005] Therefore, it is necessary to redesign and modify the anti-deviation mechanism of the coreless winding film machine. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide an anti-deviation mechanism for a coreless winding film machine, which has the advantage of improving the anti-deviation effect. It solves the problem that the existing film machine has a relatively simple structure, mainly relying on the limiting ring sleeved on the surface of the film roll for restriction, and the film roll will still tilt due to alignment deviation during the pulling process, which affects the winding effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-deviation mechanism for a coreless winding film machine, comprising a frame;

[0008] The frame has a film roll wound inside. An extension plate is fixedly connected to the front of the frame. A connecting frame is fixedly connected to the side of the extension plate away from the frame. Adjusting rods are provided on both sides inside the connecting frame. Rollers are movably connected to the side of the adjusting rod away from the connecting frame via pins. The rollers are located on both sides of the film roll and are slidably connected to the film roll.

[0009] In a preferred embodiment of this utility model, threaded sleeves are provided on both sides of the inner side of the connecting frame, and the adjusting rod extends to the outer side of the threaded sleeve from the side near the threaded sleeve. The threaded sleeve and the adjusting rod are movably connected by a pin. A force-bearing rod is fixedly connected to the outer side of the adjusting rod. Transmission blocks are provided on both sides of the inner side of the transmission blocks. A push rod is fixedly connected to the outer side of the transmission blocks. The outer surface of the push rod contacts the inner side of the force-bearing rod. A screw is movably connected to the bottom of the connecting frame through a bearing. A lifting plate is threadedly connected to the surface of the screw. Cranks are movably connected to both sides of the lifting plate through pins. The side of the crank away from the lifting plate is sleeved on the surface of the push rod.

[0010] In a preferred embodiment of this invention, a support frame sleeved on the surface of the screw is fixedly connected to the bottom of the connecting frame, and a drive motor is fixedly connected to the bottom of the support frame. The output end of the drive motor is fixedly connected to the bottom end of the screw.

[0011] In a preferred embodiment of this invention, a guide rod is fixedly connected inside the connecting frame, and the transmission block is sleeved on the surface of the guide rod and slidably connected to the guide rod.

[0012] As a preferred embodiment of this utility model, the inside of the connecting frame is movably connected to a positive and negative threaded screw located at the top of the guide rod via a bearing. The screw sleeve is fitted onto the surface of the positive and negative threaded screw and threadedly connected to the positive and negative threaded screw. Both ends of the positive and negative threaded screw extend to the outside of the connecting frame and are fixedly connected to a rotating wheel.

[0013] In a preferred embodiment of this invention, a limiting plate is fixedly connected to the top of the connecting frame, and the bottom of the limiting plate contacts the top of the threaded sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses symmetrically arranged adjusting rods and rollers to make the rollers slide in contact with the edge of the film roll, thereby sensing the offset in real time. At the same time, when the film roll deviates, the pressure triggers the roller support, forming an initial correction force, realizing a passive anti-deviation response, and breaking the rigid constraint of the traditional limit ring.

[0016] 2. This utility model transmits the pressure of the roller to the push rod through the force rod, and combines the lifting plate to drive the crank to swing, so that the roller can obtain a strong swing amplitude and realize the automatic response of small offset to large correction force.

[0017] 3. This utility model directly drives the screw through a transmission motor, providing stable and controllable lifting power. At the same time, the support frame protects the screw transmission accuracy, ensuring the synchronization of lifting response speed and correction action, and providing core driving force for real-time anti-deviation.

[0018] 4. This utility model uses a guide rod to constrain the transmission block to move in a straight line, eliminating lateral displacement deviation, ensuring that the force of the push rod is accurately transmitted to the force-bearing rod, avoiding mechanical transmission sluggishness, and improving the system's sensitivity and lifespan.

[0019] 5. This utility model uses a rotating wheel to drive a bidirectional screw, which drives the two screw sleeves on both sides to move synchronously and symmetrically. This allows the adjusting rod to change the initial distance between the rollers as the screw sleeves move, thus meeting the positioning requirements of film rolls of different widths.

[0020] 6. This utility model uses a limiting plate to press the top of the screw sleeve, eliminating axial movement during bidirectional screw transmission and preventing the screw sleeve from tilting. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of this utility model from below;

[0024] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Frame; 2. Membrane roll; 3. Extension plate; 4. Connecting frame; 5. Adjusting rod; 6. Roller; 7. Screw sleeve; 8. Force rod; 9. Transmission block; 10. Push rod; 11. Screw; 12. Lifting plate; 13. Crank; 14. Support frame; 15. Drive motor; 16. Guide rod; 17. Positive and negative threaded screw; 18. Rotary wheel; 19. Limiting plate. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 4 As shown, the present invention provides an anti-deviation mechanism for a coreless winding film machine, including a frame 1;

[0028] The frame 1 has a film roll 2 wound inside. An extension plate 3 is fixedly connected to the front of the frame 1. A connecting frame 4 is fixedly connected to the side of the extension plate 3 away from the frame 1. Adjusting rods 5 are provided on both sides inside the connecting frame 4. Rollers 6 are movably connected to the side of the adjusting rods 5 away from the connecting frame 4 through a pin. The rollers 6 are located on both sides of the film roll 2 and are slidably connected to the film roll 2.

[0029] refer to Figure 4 Both sides of the connecting frame 4 are provided with screw sleeves 7. The adjusting rod 5 extends to the outside of the screw sleeve 7 from the side near the screw sleeve 7. The screw sleeve 7 and the adjusting rod 5 are movably connected by a pin. The outside of the adjusting rod 5 is fixedly connected to a force rod 8. Both sides of the connecting frame 4 are provided with transmission blocks 9. The outside of the transmission blocks 9 is fixedly connected to a push rod 10. The outer surface of the push rod 10 contacts the inner side of the force rod 8. The bottom of the connecting frame 4 is movably connected to a screw rod 11 through a bearing. The surface of the screw rod 11 is threadedly connected to a lifting plate 12. Both sides of the lifting plate 12 are movably connected to a crank 13 through a pin. The side of the crank 13 away from the lifting plate 12 is sleeved on the surface of the push rod 10.

[0030] As a technical optimization of this utility model, the pressure of the roller 6 is transmitted to the push rod 10 through the force rod 8, and the crank 13 is driven to swing by the lifting plate 12, so that the roller 6 obtains a strong swing amplitude and realizes an automated response of small offset to large correction force.

[0031] refer to Figure 2 A support frame 14 is fixedly connected to the bottom of the connecting frame 4 and sleeved on the surface of the screw 11. A drive motor 15 is fixedly connected to the bottom of the support frame 14 and the output end of the drive motor 15 is fixedly connected to the bottom end of the screw 11.

[0032] As a technical optimization of this utility model, the screw 11 is directly driven by the transmission motor 15 to provide stable and controllable lifting power. At the same time, the support frame 14 protects the transmission accuracy of the screw 11, ensuring the synchronization of lifting response speed and correction action, and providing core driving force for real-time anti-deviation.

[0033] refer to Figure 4 The connecting frame 4 has a guide rod 16 fixedly connected inside, and the transmission block 9 is sleeved on the surface of the guide rod 16 and slidably connected to the guide rod 16.

[0034] As a technical optimization of this utility model, the guide rod 16 constrains the transmission block 9 to move in a straight line, eliminating lateral displacement deviation, so that the force of the push rod 10 is accurately transmitted to the force-bearing rod 8, avoiding mechanical transmission sluggishness and improving the system sensitivity and lifespan.

[0035] refer to Figure 4Inside the connecting frame 4, a positive and negative threaded screw 17 located at the top of the guide rod 16 is movably connected via a bearing. A threaded sleeve 7 is fitted onto the surface of the positive and negative threaded screw 17 and threadedly connected to it. Both ends of the positive and negative threaded screw 17 extend to the outside of the connecting frame 4 and are fixedly connected to a rotating wheel 18.

[0036] As a technical optimization of this utility model, the rotating wheel 18 drives the bidirectional screw 11, which in turn drives the two screw sleeves 7 to move synchronously and symmetrically. This allows the adjusting rod 5 to change the initial distance of the roller 6 as the screw sleeves 7 move, thus meeting the positioning requirements of film rolls 2 of different widths.

[0037] refer to Figure 4 The top of the connecting frame 4 is fixedly connected to the limiting plate 19, and the bottom of the limiting plate 19 contacts the top of the screw sleeve 7.

[0038] As a technical optimization of this utility model, the top of the threaded sleeve 7 is pressed by the limiting plate 19 to eliminate the axial movement during the transmission of the bidirectional screw 11 and avoid the phenomenon of tilting displacement of the threaded sleeve 7.

[0039] The working principle and usage process of this utility model are as follows: During the winding process of the film roll 2, the rotating wheel 18 is rotated first, which drives the bidirectional screw 11 to rotate. The bidirectional screw 11 uses its thread to push the screw sleeve 7 to move in opposite directions. During the movement of the screw sleeve 7, the adjusting rod 5 drives the roller 6 to move synchronously, so that the roller 6 is adapted to the width of the film roll 2. When the adjusting rod 5 is adjusted, the drive motor 15 is started. The drive motor 15 drives the screw 11 to rotate, and the screw 11 uses its thread to push the lifting plate 12 to rise. During the movement of the lifting plate 12... The crank 13 pushes the transmission block 9 to move outward. The push rod 10 on the surface of the transmission block 9 presses the force rod 8, causing the force rod 8 to swing along the adjusting rod 5. When the roller 6 at the top of the adjusting rod 5 contacts both sides of the membrane roll 2, the roller 6 applies a reverse thrust to the offset membrane roll 2, gradually pushing it back to the center position and restoring the symmetrical contact state between the membrane roll 2 and the rollers 6 on both sides. Once the membrane roll 2 is back in place, the forces on each component are restored to balance, completing the dynamic correction and realizing the real-time active correction of the deviation during the winding of the membrane roll 2.

[0040] In summary, the anti-deviation mechanism of this coreless winding film machine uses symmetrically arranged adjusting rods 5 and rollers 6 to make rollers 6 slide in contact with the edge of film roll 2, thereby sensing the deviation in real time. At the same time, when film roll 2 deviates, it is pressed and triggered to support rollers 6, forming an initial correction force, realizing a passive anti-deviation response, and breaking the rigid constraint of traditional limit rings.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] 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 anti-deviation mechanism for a coreless winding film machine, comprising a frame (1); Its features are: The frame (1) has a film roll (2) wound inside. An extension plate (3) is fixedly connected to the front of the frame (1). A connecting frame (4) is fixedly connected to the side of the extension plate (3) away from the frame (1). Adjusting rods (5) are provided on both sides inside the connecting frame (4). A roller (6) is movably connected to the side of the adjusting rod (5) away from the connecting frame (4) through a pin. The roller (6) is located on both sides of the film roll (2) and is slidably connected to the film roll (2).

2. The anti-deviation mechanism for a coreless winding film machine according to claim 1, characterized in that: Both sides of the connecting frame (4) are provided with threaded sleeves (7). The adjusting rod (5) extends to the outside of the threaded sleeve (7) from the side closest to the threaded sleeve (7). The threaded sleeve (7) and the adjusting rod (5) are movably connected by a pin. A force-bearing rod (8) is fixedly connected to the outside of the adjusting rod (5). Both sides of the connecting frame (4) are provided with transmission blocks (9). A push rod (10) is fixedly connected to the outside of the transmission block (9). The outer surface of the push rod (10) contacts the inner side of the force-bearing rod (8). The bottom of the connecting frame (4) is movably connected with a screw rod (11) through a bearing. A lifting plate (12) is threadedly connected to the surface of the screw rod (11). Both sides of the lifting plate (12) are movably connected with cranks (13) through pins. The side of the crank (13) away from the lifting plate (12) is sleeved on the surface of the push rod (10).

3. The anti-deviation mechanism for a coreless winding film machine according to claim 2, characterized in that: The bottom of the connecting frame (4) is fixedly connected to a support frame (14) sleeved on the surface of the screw (11), and the bottom of the support frame (14) is fixedly connected to a drive motor (15), the output end of the drive motor (15) is fixedly connected to the bottom end of the screw (11).

4. The anti-deviation mechanism for a coreless winding film machine according to claim 2, characterized in that: The connecting frame (4) is fixedly connected to a guide rod (16), and the transmission block (9) is sleeved on the surface of the guide rod (16) and slidably connected to the guide rod (16).

5. The anti-deviation mechanism for a coreless winding film machine according to claim 2, characterized in that: The inside of the connecting frame (4) is movably connected to the positive and negative threaded screw (17) located at the top of the guide rod (16) via a bearing. The threaded sleeve (7) is sleeved on the surface of the positive and negative threaded screw (17) and threadedly connected to the positive and negative threaded screw (17). Both ends of the positive and negative threaded screw (17) extend to the outside of the connecting frame (4) and are fixedly connected to a rotating wheel (18).

6. The anti-deviation mechanism for a coreless winding film machine according to claim 2, characterized in that: The top of the connecting frame (4) is fixedly connected to a limiting plate (19), and the bottom of the limiting plate (19) is in contact with the top of the screw sleeve (7).

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