A film cutting device for coating the surface of environmentally friendly paper cups

By introducing a tension control mechanism into the paper cup surface coating equipment, and utilizing the elastic support structure of the support plate, column and spring, real-time detection and adaptive adjustment of the film tension are achieved, solving the problem of inaccurate tension adjustment, improving production stability and reducing raw material loss.

CN224429694UActive Publication Date: 2026-06-30NANJING ZHURI PACKAGING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING ZHURI PACKAGING TECH CO LTD
Filing Date
2025-07-15
Publication Date
2026-06-30

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Abstract

This utility model relates to a film cutting device for coating the surface of environmentally friendly paper cups, including a base, on which an unwinding mechanism and a control mechanism are provided. The control mechanism is located on one side of the unwinding mechanism. The unwinding mechanism includes a vertical plate, on which a winding wheel, a guide roller, a motor, and a drive roller are provided. The motor is drivenly connected to the drive roller. This film cutting device for coating the surface of environmentally friendly paper cups, by setting a tension control mechanism, can detect the tension of the unwound film material in real time. Furthermore, by adopting an elastic support structure, it can adaptively adjust the tension, thereby ensuring the stability of the tension during film material transmission and issuing timely warnings of tension imbalance, thus reducing raw material loss.
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Description

Technical Field

[0001] This utility model relates to a film cutting device for coating the surface of environmentally friendly paper cups. Background Technology

[0002] In the paper cup surface coating production process, tension control is generally required at the unwinding end of the film material. In existing technologies, tension adjustment is usually achieved by setting up multiple simple parallel rollers. However, with this multi-roller structure, the tension is generally judged and adjusted based on the operator's experience, which can lead to inaccurate adjustments. Utility Model Content

[0003] This invention provides a film-cutting device for coating the surface of environmentally friendly paper cups.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a film cutting device for coating the surface of environmentally friendly paper cups, including a base, on which an unwinding mechanism and a control mechanism are provided, and the control mechanism is located on one side of the unwinding mechanism;

[0005] The unwinding mechanism includes a vertical plate, on which a winding wheel, a guide roller, a motor, and a drive roller are provided. The motor is connected to the drive roller in a driving connection, and the winding wheel, the guide roller, and the drive roller are located on the same side of the vertical plate.

[0006] The control mechanism includes a bracket and two control units, both of which are housed within the bracket.

[0007] The control unit includes a rotating shaft, on which a plurality of support units are provided, and each support unit is evenly arranged circumferentially around the axis of the rotating shaft.

[0008] The support unit includes a support plate, a column, a spring, a guide cylinder, and a pressure sensor. The guide cylinder is disposed on the outer circumferential surface of the rotating shaft. The pressure sensor and the spring are located inside the guide cylinder. One end of the column extends into the guide cylinder. One end of the spring is connected to the pressure sensor. The other end of the spring is connected to the end of the column that extends into the guide cylinder. The pressure sensor is located at the end of the guide cylinder near the rotating shaft. The column and the pressure sensor are located at opposite ends of the spring. The support plate is fixed to the end of the column away from the spring. The cross-section of the support plate along the diameter of the rotating shaft is an arc surface, and the center of the arc cross-section of the support plate is located on the rotating shaft.

[0009] The axis of the column coincides with the straight line containing one of the diameters of the cross-section of the rotating shaft.

[0010] Preferably, the motor drives the drive roller to rotate via a belt.

[0011] Preferably, the drive roller is provided with a guide frame.

[0012] Preferably, the diameter of the support plate is smaller than the diameter of the rotating shaft.

[0013] The beneficial effects of this utility model are that the film cutting equipment for coating the surface of environmentally friendly paper cups can detect the tension of the unwound film material in real time by setting a tension control mechanism, and adopts an elastic support structure to adaptively adjust the tension, thereby ensuring the stability of the tension of the film material transmission, and can also issue a timely warning of tension imbalance to reduce raw material loss. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the film cutting equipment for coating the surface of environmentally friendly paper cups according to this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the film cutting equipment for coating the surface of environmentally friendly paper cups according to this utility model.

[0017] Figure 3 This is a schematic diagram of the control mechanism of the film-cutting equipment for coating the surface of environmentally friendly paper cups according to this utility model.

[0018] Figure 4 This is a schematic diagram of the control unit of the film-cutting equipment for coating the surface of environmentally friendly paper cups according to this utility model.

[0019] Figure 5 yes Figure 4 Enlarged view of part A.

[0020] In the diagram: 1. Base, 2. Vertical plate, 3. Roller, 4. Guide roller, 5. Motor, 6. Drive roller, 7. Guide frame, 8. Support, 9. Shaft, 10. Belt, 11. Support plate, 12. Guide cylinder, 13. Spring, 14. Pressure sensor, 15. Column. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] like Figure 1-5 As shown, a film cutting device for coating the surface of environmentally friendly paper cups includes a base 1, on which an unwinding mechanism and a control mechanism are provided, and the control mechanism is located on one side of the unwinding mechanism;

[0023] The unwinding mechanism includes a vertical plate 2, on which a winding wheel 3, a guide roller 4, a motor 5, and a drive roller 6 are provided. The motor 5 is connected to the drive roller 6 in a transmission manner. The winding wheel 3, the guide roller 4, and the drive roller 6 are located on the same side of the vertical plate 2.

[0024] The control mechanism includes a bracket 8 and two control units, both of which are housed within the bracket 8.

[0025] The control unit includes a rotating shaft 9, on which a plurality of support units are provided, and each support unit is evenly arranged circumferentially around the axis of the rotating shaft 9.

[0026] The support unit includes a support plate 11, a column 15, a spring 13, a guide cylinder 12, and a pressure sensor 14. The guide cylinder 12 is disposed on the outer circumferential surface of the rotating shaft 9. The pressure sensor 14 and the spring 13 are located inside the guide cylinder 12. One end of the column 15 extends into the guide cylinder 12. One end of the spring 13 is connected to the pressure sensor 14, and the other end of the spring 13 is connected to the end of the column 15 that extends into the guide cylinder 12. The pressure sensor 14 is located at the end of the guide cylinder 12 near the rotating shaft 9. The column 15 and the pressure sensor 14 are respectively located at both ends of the spring 13. The support plate 11 is fixed to the end of the column 15 away from the spring 13. The cross-section of the support plate 11 along the diameter direction of the rotating shaft 9 is an arc surface, and the center of the arc cross-section of the support plate 11 is located on the rotating shaft 9.

[0027] The axis of the column 15 coincides with the straight line containing one of the diameters of the cross section of the rotating shaft 9.

[0028] Preferably, the motor 5 drives the drive roller 6 to rotate via the belt 10.

[0029] Preferably, the drive roller 6 is provided with a guide frame 7.

[0030] Preferably, the diameter of the support plate 11 is smaller than the diameter of the rotating shaft 9.

[0031] The film material is initially unwound from the reel 3, passes through the guide roller 4, goes around the drive roller 6, and then enters the control mechanism. The motor 5 drives the drive roller 6 to rotate via the belt 10, thereby driving the film material to be output. The film material passes through the support unit of the two control units in an S-shape. The support unit provides elastic support for the film material. During the unwinding process, the pressure sensor 14 can detect the pressure value in real time through the pressure of the film material on the support plate 11 and the force transmitted through the column 15 and the spring 13, thereby obtaining the tension value of the film material during the feeding process. When the tension is too high or too low, an early warning or shutdown can be issued for manual adjustment.

[0032] The membrane material is pressed onto the support plate 11, and the spring 13 outputs reverse elastic force through the column 15 to provide elastic support for the membrane material. When the tension value changes slightly, it can be absorbed by the elastic force of the spring 13, thereby ensuring the stable operation of the equipment.

[0033] Compared with existing technologies, this film cutting equipment for coating the surface of environmentally friendly paper cups can detect the tension of the unwound film material in real time by setting a tension control mechanism. It also adopts an elastic support structure to adaptively adjust the tension, thereby ensuring the stability of the tension of the film material transmission and issuing timely warnings of tension imbalance to reduce raw material loss.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A film-cutting device for coating the surface of environmentally friendly paper cups, characterized in that, The system includes a base, on which an unwinding mechanism and a control mechanism are provided, with the control mechanism located on one side of the unwinding mechanism; The unwinding mechanism includes a vertical plate, on which a winding wheel, a guide roller, a motor, and a drive roller are provided. The motor is connected to the drive roller in a driving connection, and the winding wheel, the guide roller, and the drive roller are located on the same side of the vertical plate. The control mechanism includes a bracket and two control units, both of which are housed within the bracket. The control unit includes a rotating shaft, on which a plurality of support units are provided, and each support unit is evenly arranged circumferentially around the axis of the rotating shaft. The support unit includes a support plate, a column, a spring, a guide cylinder, and a pressure sensor. The guide cylinder is disposed on the outer circumferential surface of the rotating shaft. The pressure sensor and the spring are located inside the guide cylinder. One end of the column extends into the guide cylinder. One end of the spring is connected to the pressure sensor. The other end of the spring is connected to the end of the column that extends into the guide cylinder. The pressure sensor is located at the end of the guide cylinder near the rotating shaft. The column and the pressure sensor are located at opposite ends of the spring. The support plate is fixed to the end of the column away from the spring. The cross-section of the support plate along the diameter of the rotating shaft is an arc surface, and the center of the arc cross-section of the support plate is located on the rotating shaft. The axis of the column coincides with the straight line containing one of the diameters of the cross-section of the rotating shaft.

2. The film-cutting equipment for coating the surface of environmentally friendly paper cups as described in claim 1, characterized in that, The motor drives the drive roller to rotate via a belt.

3. The film-cutting equipment for coating the surface of environmentally friendly paper cups as described in claim 1, characterized in that, The drive roller is equipped with a guide frame.

4. The film-cutting equipment for coating the surface of environmentally friendly paper cups as described in claim 1, characterized in that, The diameter of the support plate is smaller than the diameter of the rotating shaft.