Adjusting mechanism of a pof heat shrink film winder

Abstract

This utility model relates to an adjustment mechanism for a POF heat shrink film winding machine. The adjustment mechanism includes a mounting base, a mounting plate and a support plate on the mounting base, and a transmission component on the mounting plate. The transmission component includes a strip groove on the mounting plate and is connected to an adjustment component via the strip groove. This adjustment mechanism effectively avoids winding quality problems caused by unadjustable tension during the winding process. By setting the transmission component, the adjustment component and the guide component are linked, achieving tension control while also providing anti-wrinkle function, thereby improving winding quality.

Description

Technical Field

[0001] This utility model relates to the technical field of adjustment mechanisms for POF heat shrink film winding machines, specifically to an adjustment mechanism for a POF heat shrink film winding machine. Background Technology

[0002] POF heat shrink film is widely used in packaging for food, pharmaceuticals, and electronics due to its high transparency, good toughness, and stable shrinkage rate. Winding, as a crucial step in the production process, directly affects the flatness, tightness, and subsequent processing efficiency of the film roll. The adjustment mechanism is designed to solve problems such as uneven film tension during winding, which leads to fluctuations in winding quality. It is a core component ensuring the continuity and stability of POF heat shrink film production.

[0003] In the prior art, when POF heat shrink film enters the winding stage after traction and cooling, the distance between the pressure roller and the adjusting roller cannot be adjusted. As the roll diameter increases, the tension difference between the two sides of the film roll becomes significant. Due to the uneven tension, the film shrinks inconsistently, which leads to wrinkles and affects the quality of the finished shrink film. Therefore, an adjusting mechanism for a POF heat shrink film winding machine is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an adjustment mechanism for a POF heat shrink film winding machine, which can automatically adjust the tension of the equipment according to changes in roll diameter, thus solving the problem of poor winding effect caused by uneven tension in existing technologies.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An adjustment mechanism for a POF heat shrink film winding machine includes a mounting base, on which a mounting plate and a support plate are provided. A transmission component is provided on the mounting plate, and the transmission component includes a strip groove provided on the mounting plate. The transmission component is connected to the adjustment component through the strip groove.

[0006] Furthermore, the support plate is provided with a winding assembly, which includes a motor fixedly mounted on the support plate, and a winding roller for winding is provided on the motor.

[0007] Furthermore, the adjustment assembly includes a tension roller disposed between the two mounting plates, a bearing disposed on the tension roller, and a pressure sensor disposed on the bearing.

[0008] Furthermore, the transmission assembly includes a driving component, on which a first connecting rod is provided. The first connecting rod is fixedly connected to a rotating block. A second connecting rod is fixedly connected to the rotating block. A rotatable pin is provided on the rotating block. A guide component is fixedly connected to one end of the second connecting rod.

[0009] Furthermore, the driving component includes a fixed frame fixedly mounted on the mounting plate, an electric push rod is mounted on the fixed frame, and a sliding block is fixedly connected to one end of the electric push rod.

[0010] Furthermore, the guiding assembly includes a guide roller disposed between two mounting plates, and the guide roller is connected to the transmission assembly via a stabilizing rod.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects: I. The adjusting mechanism of this POF heat shrink film winding machine, through precise linkage of the linkage mechanism, achieves flexible adjustment of the clamping force, suitable for winding POF heat shrink film of different thicknesses. A slider is provided on the adjusting seat, and the slider is fixedly connected to the first linkage via a sliding rod. A tension roller is provided on the slider, and a tension sensor is installed on the bearing connected to the tension roller to detect the film tension in real time and automatically adjust it. Through the movement of the linkage mechanism, the adjusting component and the guiding component are linked, automatically adjusting the tension as the roll diameter increases, maintaining consistent winding tightness.

[0012] II. The adjustment mechanism of this POF heat shrink film winding machine uses an electric push rod to drive a sliding block to move linearly, thereby precisely adjusting the position of the tension roller. Simultaneously, the guide roller is linked to the transmission assembly via a stabilizing rod to ensure a stable material transport trajectory. During operation, a tension sensor detects the film tension in real time and feeds the data back to the control system, automatically optimizing the displacement parameters of the tension roller and guide roller to adapt to different winding speeds and film thickness variations. This dynamic adjustment not only prevents wrinkle formation but also significantly improves the consistency of winding tightness, reduces material waste, and supports continuous and stable operation in high-speed production environments. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the mounting base structure of this utility model; Figure 3 This is a schematic diagram of the adjustment component structure of this utility model; Figure 4 This is a schematic diagram of the guide component structure of this utility model; Figure 5 This is a schematic diagram of the transmission component structure of this utility model; Figure 6 This is a schematic diagram of the drive component structure of this utility model; Figure 7 This is a schematic diagram of the winding assembly structure of this utility model.

[0014] In the diagram: 1. Mounting base; 11. Mounting plate; 12. Support plate; 2. Adjustment assembly; 21. Tension sensor; 22. Bearing; 23. Tension roller; 3. Guide assembly; 31. Stabilizer bar; 32. Guide roller; 4. Transmission assembly; 41. Drive component; 411. Electric push rod; 412. Fixing frame; 413. Sliding block; 42. First connecting rod; 43. Rotating block; 44. Pin; 45. Second connecting rod; 46. Strip groove; 5. Rewinding assembly; 51. Motor; 52. Rewinding roller. Detailed Implementation

[0015] 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.

[0016] Example 1: Please see Figure 1-5 In this embodiment, an adjustment mechanism for a POF heat shrink film winding machine includes a transmission assembly 4 on a mounting plate 11. The transmission assembly 4 includes a strip groove 48 on the mounting plate 11 and is connected to an adjustment assembly 2 via the strip groove 48. The drive component 41 includes a fixed frame 412 fixedly mounted on the mounting plate 11. An electric push rod 411 is mounted on the fixed frame 412, and a sliding block 413 is fixedly connected to one end of the electric push rod 411. The adjustment assembly 2 includes a tension roller 23 disposed between the two mounting plates 11. A bearing 22 is mounted on the tension roller 23, and a pressure sensor 21 is mounted on the bearing 22.

[0017] As a preferred technical solution in this embodiment: In actual use, as the number of windings increases, the tension sensor 21 located on the adjustment component 2 can sense the tension in real time. Once the tension deviates from the set value, the tension sensor 21 immediately performs intelligent adjustment and sends a control signal to drive the electric push rod 411 mounted on the fixed frame 412 to start working. The electric push rod 411 precisely pushes the sliding block 413 to move smoothly along the preset strip groove 46 through its internal drive mechanism. The movement of the sliding block 413 drives the tension roller 23 rigidly connected to it to move precisely, thereby efficiently realizing automatic tension adjustment and ensuring that the entire winding process maintains stable and uniform tension control.

[0018] Example 2: Please see Figure 5-7Based on Embodiment 1, the transmission assembly 4 in this embodiment includes a driving component 41. A first connecting rod 42 is mounted on the driving component 41 and is fixedly connected to a rotating block 43. A second connecting rod 45 is fixedly connected to the rotating block 43, and a rotatable pin 44 is mounted on the rotating block 43. A guide assembly 3 is fixedly connected to one end of the second connecting rod 45. The guide assembly 3 includes a guide roller 32 disposed between two mounting plates 11, and the guide roller 32 is connected to the transmission assembly 4 via a stabilizing rod 31.

[0019] As a preferred technical solution in this embodiment: Based on Embodiment 1, during the actual winding process, the drive component 41 is activated and drives the sliding block 413 to move along a set direction. Since one end of the first connecting rod 42 is fixedly connected to the sliding block 413, the movement of the sliding block 413 directly drives the first connecting rod 42 to generate a corresponding linkage movement. The other end of the first connecting rod 42 is connected to and acts on the rotating block 43 fixed on the mounting plate 11. The movement of the first connecting rod 42 transmits the thrust to the rotating block 43, forcing the rotating block 43 to rotate around its pin 44 mounted on the plate. When the pressure applied by the shrink film is detected to be too high, the guide component 3 and the adjustment component 2 will move closer to each other to tighten the roll material and counteract the excessive pressure; conversely, when the pressure is detected to be too low, the guide component 3 and the adjustment component 2 will move away from each other to achieve a moderate loosening of the roll material. Through this precise coordination of real-time tightening and loosening actions, the entire system can dynamically maintain the pressure acting on the roll material at a preset constant level.

[0020] The working principle of the above embodiments is as follows: 1. When the equipment starts, motor 51 drives take-up roller 52 to rotate, and heat shrink film enters from the inlet, passing through tension roller 23 and guide roller 32 in sequence. At this time, tension sensor 21 monitors the tension change of film material in real time: the signal from tension sensor 21 drives electric push rod 411 on fixed frame 412 to push sliding block 413, causing it to move along strip groove 46. This action drives tension roller 23 to move, realizing tension adjustment.

[0021] 2. The displacement of the sliding block 413 is transmitted to the rotating block 43 through the first connecting rod 42. The rotating block 43 rotates around the pin 44, causing the second connecting rod 45 to swing, thereby causing the guide roller 32 located on the guide assembly 3 to generate a reverse displacement. When the guide roller 32 generates a reverse displacement, its position change directly affects the path length of the shrink film: if the tension sensor 21 detects excessive pressure, the displacement of the guide roller 32 will shorten the shrink film path, causing the guide assembly 3 and the adjustment assembly 2 to move closer together, thereby tightening the roll material; conversely, if the pressure is too low, the displacement of the guide roller 32 will lengthen the path, pushing the assemblies away from each other, thus loosening the roll material. This dynamic adjustment, through the precise coordination of the displacement of the tension roller 23 and the reverse movement of the guide roller 32, ensures that the pressure on the roll material responds to changes in real time and remains stable at a preset value. Dynamically maintaining tension balance and clamping force achieves high-quality winding without breakage or wrinkles.

[0022] 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. A regulating mechanism of a POF heat shrinkable film winding machine, comprising a mounting base (1), wherein a mounting plate (11) and a supporting plate (12) are arranged on the mounting base (1), characterized in that: The mounting plate (11) is provided with a transmission assembly (4), which includes a strip groove (48) provided on the mounting plate (11). The transmission assembly (4) is connected to the adjustment assembly (2) through the strip groove (48).

2. A regulating mechanism for a POF heat shrink film winder as claimed in claim 1, characterized in that: The support plate (12) is provided with a winding assembly (5), which includes a motor (51) fixedly installed on the support plate (12) and a winding roller (52) for winding.

3. The adjustment mechanism of a POF heat shrinkable film winder according to claim 1, characterized in that: The adjustment assembly (2) includes a tension roller (23) disposed between the two mounting plates (11), a bearing (22) disposed on the tension roller (23), and a pressure sensor (21) disposed on the bearing (22).

4. The adjustment mechanism of a POF heat shrinkable film winder according to claim 1, wherein: The transmission assembly (4) includes a drive component (41), on which a first connecting rod (42) is provided. The first connecting rod (42) is fixedly connected to a rotating block (43). A second connecting rod (45) is fixedly connected to the rotating block (43). A rotatable pin (44) is provided on the rotating block (43). A guide component (3) is fixedly connected to one end of the second connecting rod (45).

5. A regulating mechanism for a POF heat shrink film winder as claimed in claim 4, characterized in that: The drive component (41) includes a fixed frame (412) fixedly mounted on the mounting plate (11), an electric push rod (411) is provided on the fixed frame (412), and a sliding block (413) is fixedly connected to one end of the electric push rod (411).

6. The adjustment mechanism of a POF heat shrinkable film winder according to claim 4, characterized in that: The guide assembly (3) includes a guide roller (32) disposed between two mounting plates (11), and the guide roller (32) is connected to the transmission assembly (4) by means of a stabilizing rod (31).

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