Tension adjusting device for KPET film winding

By using a motor-driven tension adjustment device and a closed-loop control system, the problem of difficult tension control and cleaning during KPET film winding has been solved, achieving fast and precise tension adjustment and surface cleaning, thus improving the stability and cleanliness of the film roll.

CN223779608UActive Publication Date: 2026-01-09ZHEJIANG GUANGXING PACKAGING NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202520364494.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-04
Publication Date
2026-01-09
Estimated Expiration
2035-03-04

AI Technical Summary

Technical Problem

Existing tension adjustment mechanisms for KPET film winding are time-consuming and labor-intensive to operate, making it difficult to achieve rapid and precise tension control for KPET films of different materials and thicknesses. Furthermore, they lack cleaning functions, which affects the quality and performance of the film rolls.

Method used

The tension adjustment device is driven by a motor, which, together with a tension sensor and controller, enables automatic tension adjustment. It is equipped with a cleaning roller and an electrostatic adsorption rod to clean the surface of the KPET film, forming a closed-loop control system.

Benefits of technology

It enables automatic and precise adjustment of KPET film tension, improves winding stability and consistency, removes dust and impurities from the film surface, and enhances the cleanliness and winding quality of the film roll.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tension adjusting device for KPET film winding, which comprises a mounting plate, a first guide roller, a tension roller and a second guide roller which are used for conveying a KPET film are mounted on the mounting plate, the first guide roller and the second guide roller are positioned at the same horizontal height, and the tension roller is positioned between the first guide roller and the second guide roller; wherein a tensioning adjusting part is mounted on the mounting plate, and the tensioning adjusting part is connected with the tensioning roller; and a dust removal component is mounted on the feeding side of the second guide roller and is in contact with the surface of the KPET film. According to the tension adjusting device for KPET film winding, accurate adjustment of the tension degree of a KPET film can be automatically completed, time and labor are saved, it is guaranteed that the KPET film is always kept at the proper tension degree, winding stability and consistency are improved, surface cleaning, surface dust and impurity removing and product cleanliness improving can be conducted before the KPET film is wound, and the practicability of the tension adjusting device for KPET film winding is improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to KPET film winding technical field, concretely relates to a kind of KPET film winding is used tension adjusting device. BACKGROUND

[0002] KPET film is widely used in electronic, packaging, optics and many other fields with its excellent mechanical properties, outstanding optical properties, stable electrical properties and good chemical stability. With the vigorous development of these industries, the requirements for the quality and production efficiency of KPET film are becoming increasingly stringent. In the KPET film winding process, the accurate control of tension is one of the key difficulties. If the tension is too low, KPET film is prone to wrinkles and relaxation during the winding process, resulting in a non-tight and non-flat film roll. This not only affects the appearance of the film roll, but also causes great inconvenience to subsequent processing and use.

[0003] A KPET film winding tension adjusting mechanism disclosed in Chinese Patent Publication No. CN216971490U includes a mounting frame, guide rollers are rotatably installed on the upper end faces of the left and right sides of the mounting frame, lifting plates are provided on the upper end faces of the left and right sides of the mounting frame, a tension roller is rotatably installed on the upper end face of the lifting plate, a through hole is formed in the upper end face of the mounting frame below the tension roller, a threaded rod is fixedly connected to the bottom end face of the lifting plate, and the KPET film is connected to the winding machine after being wound around the left guide roller, the left and right tension rollers, and the right guide roller in sequence during winding. When it is necessary to adjust the tension of the film roll, a hand wheel is rotated, which drives the left and right rotating sleeves to rotate in opposite directions. The rotating sleeves drive the threaded blocks to rotate when they rotate. Since the threaded rod is threaded through the threaded blocks, the left and right tension rollers will move relative to each other when the hand wheel is rotated, thereby adjusting the tension of the film roll.

[0004] The above technical solution drives the adjustment of tension by rotating the hand wheel during use. The operator needs to constantly monitor the tensioning state of the film, and frequently manually rotates the hand wheel to adjust the position of the tension roller, which consumes a lot of manpower and time. It is difficult to achieve rapid and accurate tension control of KPET film with different materials and thicknesses. In addition, KPET film is prone to adsorbing dust, impurities and other pollutants on the surface during production and transmission. The KPET film winding tension adjusting mechanism does not have a cleaning mechanism for the surface of the KPET film, reducing the practicality of the KPET film winding tension adjusting mechanism. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a KPET film winding tension adjusting device to solve the technical defects of the existing KPET film winding tension adjusting mechanism, which is time-consuming and labor-intensive to adjust tension, and difficult to achieve rapid and accurate tension control of KPET film with different materials and thicknesses. KPET film does not have a cleaning mechanism during production and transmission.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of tension adjusting device for KPET film winding, including mounting plate, first guide roller, tension roller and second guide roller for KPET film conveying are installed on mounting plate, first guide roller and second guide roller are located at the same horizontal height, and tension roller is located between first guide roller and second guide roller;Wherein, tension adjusting component is installed on mounting plate, and tension adjusting component is connected with tension roller;Dust removal component is installed on the feed side of second guide roller, and dust removal component is in contact with the surface of KPET film.

[0007] As a further scheme of the utility model, tension adjusting component includes screw rod, screw sleeve and first drive motor, installation channel is opened in mounting plate, sliding slot is opened in the inner wall of installation channel, sliding block is slidably installed in the inside of sliding slot, screw sleeve is fixedly installed on sliding block, first bearing is fixedly installed on the inner top and inner bottom of installation channel respectively, screw rod is fixedly installed between the inner ring of two first bearings, screw sleeve is threadedly installed on screw rod, first drive motor is fixedly installed on mounting plate, and the output shaft of first drive motor is fixedly connected with one end of screw sleeve, and one end of tension roller is fixedly connected with one side of sliding block.

[0008] The above technical scheme further includes tension sensor and controller, and the tension sensor is fixedly installed on the discharge side of the first guide roller, and the controller is fixedly installed on the mounting plate.

[0009] As a further scheme of the utility model, dust removal component includes two upper and lower aligned cleaning rollers, and the cleaning roller is composed of mounting shaft and brush, and KPET film is located between the two cleaning rollers, and the upper and lower surfaces of KPET film are respectively in contact with the upper and lower brush.

[0010] Second bearing is fixedly installed on mounting plate, one end of the mounting shaft of cleaning roller is fixedly installed in the inner ring of second bearing, and gear is fixedly installed on one end of mounting shaft, and the upper and lower gears are meshing transmission, and support plate is fixedly installed on mounting plate, and second drive motor is fixedly installed on support plate, and the output shaft of second drive motor is fixedly connected with one end of one mounting shaft.

[0011] As a preferred scheme of the utility model, two upper and lower symmetrical electrostatic adsorption rods are fixedly installed on mounting plate, and the electrostatic adsorption rod is located between second guide roller and cleaning roller, and KPET film is located between the two electrostatic adsorption rods, and the adsorption surfaces of the upper and lower electrostatic adsorption rods are respectively towards KPET film.

[0012] As a preferred scheme of the utility model, the brush of cleaning roller is nylon material.

[0013] As a further preferred scheme of the present application, the distance between the adsorption surface of the electrostatic adsorption rod and the surface of the KPET film is 10-20mm.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] In the present application, the first driving motor is used to adjust the tensioning roller to a proper initial position, and preliminarily tension the KPET film, then the second driving motor is started to drive the cleaning roller to rotate, and clean the surface of the KPET film, then the electrostatic adsorption rod is turned on, and the electrostatic adsorption is used to further remove the tiny dust particles, in the winding process, the tension sensor real-time feedback monitors the data, if the tension of the KPET film deviates from the set value, the controller will automatically control the first driving motor to adjust the position of the tensioning roller, so as to keep the tension stable, and the precise adjustment of the tension of the KPET film can be automatically completed, which saves time and effort, ensures that the KPET film always maintains a proper tension, improves the winding stability and consistency, and can clean the surface of the KPET film before winding, remove the surface dust and impurities, improve the product cleanliness, and improve the practicability of the KPET film winding tension adjusting device. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows, and obviously, the drawings in the following description are only one case of the embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0017] Figure 1 Structure diagram of the present application Figure One ;

[0018] Figure 2 Structure diagram of the present application Figure Two ;

[0019] Figure 3 Front view structure diagram of the present application

[0020] Figure 4 Mounting structure diagram of the tensioning roller in the present application

[0021] Reference signs:

[0022] 1, mounting plate; 101, mounting channel; 102, first bearing; 103, screw rod; 104, screw sleeve; 105, sliding groove; 106, sliding block; 2, first guide roller; 3, tensioning roller; 301, first drive motor; 4, second guide roller; 5, cleaning roller; 501, second bearing; 502, gear; 503, support plate; 504, second drive motor; 6, electrostatic adsorption rod; 7, tension sensor; 8, controller; 9, KPET film. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the embodiments of the present application are further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0024] In the description of the embodiments of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0025] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, integrally connected, or detachably connected; it can be the communication inside two elements; it can be directly connected, or indirectly connected through an intermediate medium; for those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0026] Referring to the drawings Figures 1-4 As shown in the drawings, the present application is a kind of KPET film tensioning adjusting device for winding, including mounting plate 1, mounting plate 1 is installed for the first guide roller 2 of KPET film 9 conveying, tensioning roller 3 and second guide roller 4, first guide roller 2 and second guide roller 4 are located at the same horizontal height, and tensioning roller 3 is located between first guide roller 2 and second guide roller 4.

[0027] Among them, mounting plate 1 is installed with tensioning adjusting component, and the tensioning adjusting component is connected with tensioning roller 3;Dust removal component is installed on the feeding side of second guide roller 4, and the dust removal component is in contact with the surface of KPET film 9.

[0028] In the technical scheme, the first guide roller 2, the tensioning roller 3 and the second guide roller 4 are arranged on the mounting plate 1, a stable KPET film 9 conveying system is constructed, the first guide roller 2 and the second guide roller 4 are at the same horizontal height, the horizontal state of the KPET film 9 during transmission can be ensured, the inclination or deviation of the KPET film 9 is prevented, the flatness of the winding is ensured, the tensioning roller 3 is connected with the tensioning adjusting component, the tensioning degree of the KPET film 9 can be adjusted in real time, the winding is prevented from being too loose or too tight, the winding quality is improved, the dust removing component in contact with the surface of the KPET film 9 is arranged on the feeding side of the second guide roller 4, the KPET film 9 is cleaned before winding, the surface dust and impurities are removed, and the product cleanliness is improved.

[0029] The tensioning adjusting component comprises a screw rod 103, a screw sleeve 104 and a first driving motor 301, the mounting plate 1 is provided with a mounting channel 101, a sliding groove 105 is arranged on the inner wall of the mounting channel 101, a sliding block 106 is slidably arranged in the sliding groove 105, the screw sleeve 104 is fixedly arranged on the sliding block 106, first bearings 102 are fixedly arranged on the inner top and the inner bottom of the mounting channel 101, the screw rod 103 is fixedly arranged between the inner rings of the two first bearings 102, the screw sleeve 104 is threadedly arranged on the screw rod 103, the first driving motor 301 is fixedly arranged on the mounting plate 1, and the output shaft of the first driving motor 301 is fixedly connected with one end of the screw sleeve 104, and one end of the tensioning roller 3 is fixedly connected with one side of the sliding block 106.

[0030] The utility model embodiment further includes a tension sensor 7 and a controller 8, the tension sensor 7 is fixedly installed on the discharging side of the first guide roller 2, and the controller 8 is fixedly installed on the mounting plate 1, and the controller 8 is electrically connected with the first driving motor 301 and the tension sensor 7 respectively.

[0031] The first driving motor 301 drives the screw sleeve 104 to rotate on the screw rod 103, the sliding block 106 and the connected tensioning roller 3 move up and down, accurate tensioning degree adjustment is realized, compared with manual adjustment, it is more efficient and accurate, can quickly respond to actual demand, the tension sensor 7 is installed on the discharging side of the first guide roller 2, can monitor the tension of the KPET film 9 in real time and transmit data to the controller 8, the controller 8 controls the first driving motor 301 to operate according to the preset tension value, forms a closed-loop control system, ensures that the KPET film 9 always maintains appropriate tensioning degree, and improves winding stability and consistency.

[0032] The dust removal component comprises two vertically aligned cleaning rollers 5, which are composed of mounting shafts and bristles, and a KPET film 9 is located between the two cleaning rollers 5, and the upper and lower surfaces of the KPET film 9 are respectively in contact with the upper and lower bristles; a second bearing 501 is fixedly installed on the mounting plate 1, one end of the mounting shaft of the cleaning roller 5 is fixedly installed in the inner ring of the second bearing 501, and a gear 502 is fixedly installed at one end of the mounting shaft, the two gears 502 are in meshing transmission, a supporting plate 503 is fixedly installed on the mounting plate 1, a second driving motor 504 is fixedly installed on the supporting plate 503, and the output shaft of the second driving motor 504 is fixedly connected with one end of the mounting shaft.

[0033] The above technical solution fixes the cleaning roller 5 mounting shaft through the second bearing 501, the gears 502 at one end of the shafts are in meshing transmission, one of the shafts is driven to rotate by the second driving motor 504, the two cleaning rollers 5 are synchronously rotated, the upper and lower surfaces of the KPET film 9 are simultaneously cleaned, dust and impurities are effectively removed, the KPET film 9 of different thicknesses can be adapted, the motor driving can adjust the cleaning strength and speed according to the actual situation, and the dust removal efficiency and adaptability are improved.

[0034] Two symmetrically arranged electrostatic adsorption rods 6 are fixedly installed on the mounting plate 1, the electrostatic adsorption rods 6 are located between the second guide roller 4 and the cleaning roller 5, the KPET film 9 is located between the two electrostatic adsorption rods 6, and the adsorption surfaces of the upper and lower electrostatic adsorption rods 6 respectively face the KPET film 9.

[0035] The above technical solution locates the KPET film 9 between the two electrostatic adsorption rods 6, and the adsorption surfaces face the KPET film 9, which can further remove the small particles and dust on the surface of the KPET film 9 by using the principle of electrostatic adsorption, and forms a double dust removal effect in cooperation with the cleaning roller 5, thereby effectively improving the cleanliness of the KPET film 9.

[0036] The bristles of the cleaning roller 5 are made of nylon, which has good wear resistance and flexibility, the wear resistance can prolong the service life of the cleaning roller 5 and reduce the maintenance cost, the flexibility enables the bristles to closely adhere to the surface of the KPET film 9, thereby effectively removing the dust and impurities without damaging the KPET film, improving the cleaning effect, and protecting the KPET film 9 from being damaged during the cleaning process.

[0037] The distance between the adsorption surface of the electrostatic adsorption rod 6 and the surface of the KPET film 9 is 10-20 mm.

[0038] In the above technical solution, the distance between the adsorption surface of the electrostatic adsorption rod 6 and the surface of the KPET film 9 is preferably 15 mm, which effectively ensures that the electrostatic adsorption rod 6 has sufficient adsorption force on the dust on the surface of the KPET film 9, and avoids causing adverse effects on the KPET film 9, thereby improving the stability and reliability of the device.

[0039] It is worth mentioning that the electrostatic adsorption bar 6 is model SL-008, and the tension sensor 7 is model ZAK series cantilever.

[0040] As known to those skilled in the art, the working principle and wiring method of the first driving motor 301, the second driving motor 504, the electrostatic adsorption bar 6, the tension sensor 7 and the controller 8 are common, which belong to conventional means or common knowledge, and will not be described here.

[0041] In use, the KPET film 9 is drawn out from the unwinding device, passes between the two cleaning rollers 5, between the two electrostatic adsorption bars 6, the second guide roller 4, the tension roller 3, the first guide roller 2 in turn, and is finally connected to the winding device, so that the KPET film 9 is kept flat between the rollers without wrinkles and deviation. The first driving motor 301 is started to adjust the tension roller 3 to the appropriate initial position, and the KPET film 9 is preliminarily tensioned. The second driving motor 504 is started to drive the cleaning roller 5 to rotate and clean the surface of the KPET film 9. The electrostatic adsorption bar 6 is started, and the electrostatic adsorption is used to further remove the tiny dust particles. In the winding process, the tension sensor 7 real-time feedback monitors the data. If the tension of the KPET film 9 deviates from the set value, the controller 8 automatically controls the first driving motor 301 to adjust the position of the tension roller 3, so that the tension is kept stable.

[0042] The above shows and describes the basic principle of the present application. The above is only the preferred embodiment of the present application, and does not limit the present application. The above embodiment and the description in the specification only illustrate the principle of the present application. Any modification, equivalent replacement and improvement within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A tension adjusting device for winding a KPET film, characterized by: The installation plate (1) is provided with a first guide roller (2) for KPET film (9) conveying, a tensioning roller (3) and a second guide roller (4), the first guide roller (2) and the second guide roller (4) are at the same horizontal height, and the tensioning roller (3) is located between the first guide roller (2) and the second guide roller (4); The installation plate (1) is provided with a tensioning adjusting component connected with the tensioning roller (3); The second guide roller (4) is provided with a dust removal component on the feeding side, and the dust removal component is in contact with the surface of the KPET film (9).

2. The tension adjusting device for winding KPET film according to claim 1, characterized in that: The tensioning adjusting component comprises a screw rod (103), a screw sleeve (104) and a first driving motor (301), the installation plate (1) is provided with an installation channel (101), the inner wall of the installation channel (101) is provided with a sliding groove (105), the sliding groove (105) is slidably connected with a sliding block (106), the screw sleeve (104) is fixedly connected with the sliding block (106), the inner top and the inner bottom of the installation channel (101) are respectively provided with a first bearing (102), the screw rod (103) is fixedly connected between the inner rings of the two first bearings (102), the screw sleeve (104) is threadedly connected with the screw rod (103), the first driving motor (301) is fixedly connected with the installation plate (1), and the output shaft of the first driving motor (301) is fixedly connected with one end of the screw sleeve (104), and one end of the tensioning roller (3) is fixedly connected with one side of the sliding block (106). The installation plate (1) is provided with a tensioning adjusting component connected with the tensioning roller (3); 3. The tension adjusting device for winding KPET film according to claim 2, characterized in that: The dust removal component comprises two cleaning rollers (5) arranged in an up-down manner, the cleaning roller (5) is composed of an installation shaft and a brush, the KPET film (9) is located between the two cleaning rollers (5), and the upper and lower surfaces of the KPET film (9) are respectively in contact with the upper and lower brushes; The installation plate (1) is provided with a second bearing (501), one end of the installation shaft of the cleaning roller (5) is fixedly connected with the inner ring of the second bearing (501), one end of the installation shaft is fixedly connected with a gear (502), the two gears (502) are in meshing transmission, the installation plate (1) is provided with a supporting plate (503), the supporting plate (503) is provided with a second driving motor (504), and the output shaft of the second driving motor (504) is fixedly connected with one end of the installation shaft.

4. The tension adjusting device for winding KPET film according to claim 3, characterized in that: Two electrostatic adsorption rods (6) are symmetrically arranged on the mounting plate (1), and the electrostatic adsorption rods (6) are located between the second guide roller (4) and the cleaning roller (5), the KPET film (9) is located between the two electrostatic adsorption rods (6), and the adsorption surfaces of the upper and lower electrostatic adsorption rods (6) respectively face the KPET film (9).

5. The tension adjusting device for winding KPET film according to claim 3, characterized in that: The bristles of the cleaning roller (5) are made of nylon.

6. The tension adjusting device for winding KPET film according to claim 4, characterized in that: The distance between the adsorption surface of the electrostatic adsorption rod (6) and the surface of the KPET film (9) is 10-20 mm.

Citation Information

Patent Citations

  • Tension adjusting mechanism for KPET film winding

    CN216971490U