A roll tensioning device for high-barrier film production

Abstract

This utility model relates to the technical field of roll tensioning devices, specifically disclosing a roll tensioning device for high-barrier film production. It includes: a circular roller at the front end of a support body, and a correction mechanism on the outside of the roller. When the substrate deflects laterally due to improper tension adjustment, the correction mechanism detects the deflection and adjusts the roller to move laterally. A roll roller is located on one side of the correction mechanism, and a rotary motor is located at one end of the roll roller. An adjustment mechanism is located on the side of the rotary motor. When the substrate is wound to different diameters, the adjustment mechanism controls the linear distance between the roll roller and the correction mechanism to change the tension. This roll tensioning device for high-barrier film production, through the linkage design of the correction mechanism and the adjustment mechanism, avoids wrinkles or breakage caused by deflection. The adjustment mechanism, through the coordinated action of the lifting arm and photoelectric sensor, ensures that the substrate tension remains constant under different winding thicknesses, reducing material loss.

Description

Technical Field

[0001] This utility model relates to the technical field of roll tensioning devices, specifically a roll tensioning device for high-barrier film production. Background Technology

[0002] High-barrier film production roll tensioning devices are core equipment used in industrial production to process continuous rolls of material. They are mainly used to realize the unwinding and winding processes of rolls. Through an automated control system, tension and motion parameters are precisely adjusted to adapt to the needs of rolls of different materials, thicknesses and widths.

[0003] Existing roll tensioning devices for high-barrier film production suffer from several drawbacks during high-speed transport. Improper tension control can lead to lateral shifting of the substrate, resulting in edge wrinkles or breakage. As the winding diameter increases, the frictional torque between the roll roller and the substrate also increases. Tension adjustment relies heavily on fixed mechanical structures, making it difficult to respond in real-time to tension fluctuations caused by changes in winding diameter. This results in problems such as stretching deformation, edge loosening, or uneven winding of the substrate during the winding process, reducing the yield and increasing material waste. Therefore, we propose a roll tensioning device for high-barrier film production. Utility Model Content

[0004] The purpose of this invention is to provide a roll tensioning device for high-barrier film production, in order to solve the problems mentioned in the background art, such as the possible lateral displacement of the substrate during high-speed conveying, which leads to edge wrinkles or breakage, and the increase in friction torque between the roll roller and the substrate as the winding diameter gradually increases, resulting in stretching deformation, edge loosening or uneven winding of the substrate during the winding process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roll tensioning device for high-barrier film production, comprising: a support body, a circular roller at the front end of the support body, a correction mechanism on the outer side of the circular roller, a conveying substrate being attached to the surface of the circular roller, and when the substrate deflects laterally due to improper tension adjustment, the correction mechanism detects the deflection and adjusts the circular roller to move laterally, a roll roller is provided on one side of the correction mechanism, a rotary motor is provided at one end of the roll roller, and an adjustment mechanism is provided on the side of the rotary motor, the adjustment mechanism controls the straight-line distance between the roll roller and the correction mechanism to change the tension when the substrate is received to different diameters.

[0006] The correction mechanism includes a slide rail seat fixedly connected to the main body of the support, a slide rail fixedly connected to the upper part of the slide rail seat, a pulley seat slidably connected to the slide rail, a roller bracket fixedly connected to the pulley seat, a hydraulic rod fixedly connected to the roller bracket, a hydraulic cylinder fixedly connected to the hydraulic rod, a motor fixedly connected to the roller bracket, a rotating shaft fixedly connected to the motor, a roller fixedly connected to the rotating shaft, an auxiliary roller provided on the upper part of the roller, crank rods rotatably connected to both ends of the auxiliary roller, crank rod shafts fixedly connected to the crank rods, a motor fixedly connected to the crank rod shafts, and an infrared positioner provided above the auxiliary roller.

[0007] The adjustment mechanism includes a lifting arm fixedly connected to the main body of the support, a limit plate fixedly connected to the lifting arm, a winding roller rotatably connected to the limit plate, a rotary motor fixedly connected to the winding roller, and a photoelectric sensor fixedly connected to the inner side of the limit plate.

[0008] The top surface of the slide rail seat is provided with a wear-resistant layer.

[0009] The bottom of the pulley seat is provided with a guide protrusion.

[0010] The coiled roller is equipped with dust covers at both ends.

[0011] The bracket is equipped with an electrostatic eliminator.

[0012] This utility model has at least the following beneficial effects: In use, this invention improves the stability and accuracy of substrate conveying through a correction mechanism and an adjustment mechanism. The correction mechanism, utilizing the linkage design of slide rails, hydraulic cylinders, and auxiliary rollers, can respond to lateral deviations of the substrate in real time and dynamically adjust the conveying direction, effectively avoiding wrinkles or breakage caused by deflection. The adjustment mechanism, through the synergistic effect of the lifting arm and photoelectric sensors, achieves automatic matching and dynamic compensation of the roll tension, ensuring that the substrate tension remains constant under different winding thicknesses. The organic combination of the two mechanisms improves the intelligence level of equipment operation, reduces the frequency of manual intervention, and optimizes the winding quality of high-barrier films through precise tension control, extending the service life of the equipment and reducing material loss. 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 correction mechanism of this utility model; Figure 3 This is a partially enlarged schematic diagram of the correction mechanism of this utility model; Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model.

[0014] In the diagram: 1. Main support body; 2. Correction mechanism; 21. Slide rail seat; 22. Slide rail; 23. Pulley seat; 24. Circular roller support; 25. Motor; 26. Rotating shaft; 27. Circular roller; 28. Auxiliary roller; 29. ​​Crank rod; 210. Crank rod shaft; 211. Hydraulic rod; 212. Hydraulic cylinder; 213. Infrared positioner; 3. Adjustment mechanism; 31. Lifting arm; 32. Limiting plate; 33. Rolled material circular roller; 34. Photoelectric sensor; 35. Rotary motor; 4. Wear-resistant layer; 5. Guide protrusion; 6. Shaft end dust cover; 7. Static eliminator. 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 Figures 1 to 4 This utility model provides a technical solution: a roll tensioning device for high-barrier film production, comprising: a circular roller 27 at the front end of a support body 1, a correction mechanism 2 on the outer side of the circular roller 27, the surface of the circular roller 27 being in contact with the conveying substrate, and when the substrate deflects laterally due to improper tension adjustment, the correction mechanism 2 detects the deflection and adjusts the circular roller 27 to move laterally, a roll roller 33 is provided on one side of the correction mechanism 2, a rotary motor 35 is provided at one end of the roll roller 33, and an adjustment mechanism 3 is provided on the side of the rotary motor 35, the adjustment mechanism 3 controlling the straight-line distance between the roll roller 33 and the correction mechanism 2 to change the tension when the substrate is received to different diameters.

[0017] The correction mechanism 2 includes a slide rail seat 21 fixedly connected to the support body 1, a slide rail 22 fixedly connected to the upper part of the slide rail seat 21, a pulley seat 23 slidably connected to the slide rail 22, a roller support 24 fixedly connected to the pulley seat 23, a motor 25 fixedly connected to the roller support 24, a rotating shaft 26 fixedly connected to the motor 25, a roller 27 fixedly connected to the rotating shaft 26, an auxiliary roller 28 provided on the upper part of the roller 27, a crank rod 29 rotatably connected to both ends of the auxiliary roller 28, a crank rod shaft 210 fixedly connected to the crank rod 29, a motor 25 fixedly connected to the crank rod shaft 210, an infrared positioner 213 provided above the auxiliary roller 28, a hydraulic rod 211 fixedly connected to the roller support 24, and a hydraulic cylinder 212 fixedly connected to the hydraulic rod 211. When the substrate enters the correction mechanism 2 from the rear of the equipment, the infrared positioner 213 monitors the edge position of the substrate in real time. When a lateral deviation of the substrate is detected, the hydraulic cylinder 212 drives the hydraulic rod 211 to move the pulley seat 23 laterally along the slide rail 22. The roller bracket 24 moves synchronously with the pulley seat 23, adjusting the relative position of the roller 27 and the auxiliary roller 28 to form an angle for correction, so that the substrate is re-aligned with the center position. At this time, the motor 25 driven by the crank shaft 210 drives the crank 29 to swing, so that the auxiliary roller 28 adjusts its angle synchronously with the movement trajectory of the substrate, ensuring that the substrate maintains stable tension during the correction process. The substrate that has been corrected enters the adjustment mechanism 3.

[0018] The adjustment mechanism 3 includes a lifting arm 31 fixedly connected to the support body 1. The lifting arm 31 is fixedly connected to a limiting disk 32. The limiting disk 32 is rotatably connected to a winding roller 33. The winding roller 33 is fixedly connected to a rotary motor 35. A photoelectric sensor 34 is fixedly connected to the inner side of the limiting disk 32. During operation, the rotary motor 35 drives the winding roller 33 to rotate and collect the substrate. The photoelectric sensor 34 continuously monitors the matching degree between the surface linear speed of the winding roller 33 and the substrate conveying speed. When the wound material reaches the predetermined thickness, the lifting arm 31 adjusts the height of the limiting disk 32 according to the signal fed back by the photoelectric sensor 34. By changing the distance between the winding roller 33 and the correction mechanism 2, the friction torque fluctuation caused by the change in the winding diameter is compensated, thereby maintaining constant tension and preventing the substrate from wrinkling or breaking.

[0019] Example 2 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the top surface of the slide rail 22 on the slide rail seat 21 is provided with a wear-resistant layer 4. The wear-resistant layer 4 is attached to the surface of the slide rail 22 by a thermal spraying process to extend the service life of the slide rail 22. The bottom of the pulley seat 23 is provided with a guide protrusion 5. The guide protrusion 5 is fixedly connected to the slide rail 22 through a slot to guide the pulley seat 23 to move smoothly along the slide rail 22. The two ends of the coil roller 33 are provided with shaft end dust covers 6. The dust covers 6 are fixedly connected to the coil roller 33 to prevent dust from entering the bearing. The main body of the bracket 1 is provided with an electrostatic eliminator, located below the substrate conveying path between the roller 27 and the auxiliary roller 28. The electrostatic eliminator 7 adopts a low-voltage DC ion fan to neutralize the static electricity on the substrate surface through positive and negative ions, reducing the breakage problem of the substrate edge caused by dust adsorption or discharge. At the same time, it avoids the risk of high-voltage equipment, improves the safety of equipment operation, and optimizes the winding quality in conjunction with the correction mechanism.

[0020] 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.

[0021] 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 roll tensioning device for high-barrier film production, comprising: The support body is characterized in that: a circular roller is provided at the front end of the support body, and a correction mechanism is provided on the outer side of the circular roller. The surface of the circular roller is in contact with the conveying substrate. When the substrate deflects laterally due to improper tension adjustment, the correction mechanism detects the deflection and adjusts the circular roller to move laterally. A winding circular roller is provided on one side of the correction mechanism, and a rotary motor is provided at one end of the winding circular roller. An adjustment mechanism is provided on the side of the rotary motor. When the substrate is received to different diameters, the adjustment mechanism controls the straight-line distance between the winding circular roller and the correction mechanism to change the tension.

2. The roll tensioning device for high-barrier film production according to claim 1, characterized in that: The correction mechanism includes a slide rail seat fixedly connected to the main body of the support. A slide rail is fixedly connected to the upper part of the slide rail seat. A pulley seat is slidably connected to the slide rail. A roller bracket is fixedly connected to the pulley seat. A hydraulic rod is fixedly connected to the roller bracket. A hydraulic cylinder is fixedly connected to the hydraulic rod. A motor is fixedly connected to the roller bracket. A rotating shaft is fixedly connected to the motor. A roller is fixedly connected to the rotating shaft. An auxiliary roller is provided on the upper part of the roller. A crank rod is rotatably connected to both ends of the auxiliary roller. A crank rod shaft is fixedly connected to the crank rod. A motor is fixedly connected to the crank rod shaft. An infrared positioner is provided above the auxiliary roller.

3. The roll tensioning device for high-barrier film production according to claim 1, characterized in that: The adjustment mechanism includes a lifting arm fixedly connected to the support body, a limit plate fixedly connected to the lifting arm, a winding roller rotatably connected to the limit plate, a rotary motor fixedly connected to the winding roller, and a photoelectric sensor fixedly connected to the inner side of the limit plate.

4. The roll tensioning device for high-barrier film production according to claim 2, characterized in that: The top surface of the slide rail seat is provided with a wear-resistant layer.

5. The roll tensioning device for high-barrier film production according to claim 2, characterized in that: The bottom of the pulley seat is provided with a guide protrusion.

6. The roll tensioning device for high-barrier film production according to claim 3, characterized in that: The coil roller is equipped with dust covers at both ends.

7. The roll tensioning device for high-barrier film production according to claim 3, characterized in that: The main body of the support is equipped with an electrostatic eliminator.

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