Heat-sealing interface device of rewinding machine

By utilizing the heat sealing device and clamping plate assembly of the rewinding machine's heat sealing interface device, and through the cooperation of the heating wire and clamping plate assembly, the problems of weak film connection and inconsistent quality are solved, thus realizing automated and high-quality film connection.

CN223973525UActive Publication Date: 2026-03-06YAKE FILM (DONGGUAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Traditional film bonding methods are prone to detachment during high-speed rewinding, resulting in inconsistent bonding quality and problems such as film wrinkles or misalignment.

Method used

The heat-sealing interface device of the rewinding machine includes a heat-sealing device and a clamping plate assembly. The heating wire and the clamping plate assembly are used to heat-press the film edge together, and the heat-sealing temperature, pressure and time are precisely controlled by the control system.

Benefits of technology

It achieves automation and robustness in film bonding, ensuring no detachment during high-speed rewinding, improving the consistency of bonding quality, and avoiding film wrinkles or misalignment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rewinding machines, and discloses a heat-sealing interface device of a rewinding machine. The unwinding device is used for placing a coiled material and unwinding the coiled material; the guide roller set is arranged along the running path of the film and used for guiding the film and providing tension. The heat sealing device is installed on the rack and arranged on the running path of the guide roller set. The heat sealing device comprises a mounting plate, a first clamping plate assembly, a second clamping plate assembly and a third clamping plate assembly. A heating wire is arranged at the position, corresponding to the second clamping plate assembly, of the mounting plate; the winding device is used for winding the coiled material; the deviation correcting device is arranged at the position of the guide roller set and used for correcting the position of the coiled material; and the control system is used for receiving the signal and outputting the signal. The method is used for solving the connection problem of films, improving the connection quality of the films and simplifying the connection process.
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Description

Technical Field

[0001] This utility model relates to the field of rewinding machine technology, and in particular to a heat-sealing interface device for a rewinding machine. Background Technology

[0002] Film rewinding machines are widely used in packaging, printing, and electronics industries. They are primarily used to rewind film material from a large roll into multiple smaller rolls to meet diverse production needs. In actual production, when the film at the unwinding position is used up, a new roll of film needs to be replaced promptly, and the edges of the new film must be connected to the film at the rewinding position to ensure production continuity. Traditional connection methods typically use adhesive tape. Alternatively, if defects exist in certain areas of the film during rewinding, the defective areas need to be cut before connecting the films.

[0003] The above method has the following technical problems: the connection is not firm, the tape is prone to falling off during high-speed rewinding, causing production interruption; it is difficult to ensure consistent quality of each connection, and film wrinkles or misalignment are likely to occur.

[0004] Therefore, improvements are needed. Utility Model Content

[0005] The technical problem solved by this utility model is to address the deficiencies in the prior art by providing a heat-sealing interface device for a rewinding machine, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a heat-sealing interface device for a rewinding machine, comprising: a frame; an unwinding device disposed at the left end of the frame, the unwinding device being used to place and unwind the roll material; a guide roller group disposed along the running path of the film, the guide roller group being used to guide the film and provide tension; a heat-sealing device mounted on the frame and disposed on the running path of the guide roller group; the heat-sealing device comprising a mounting plate disposed on the frame, and a first clamping plate assembly, a second clamping plate assembly, and a third clamping plate assembly disposed sequentially at intervals on the mounting plate; wherein, a heating wire is provided at the position corresponding to the second clamping plate assembly on the mounting plate; a winding device disposed at the right end of the frame, the winding device being used to wind the roll material; a deviation correction device disposed at the position of the guide roller group, the deviation correction device being used to correct the position of the roll material; and a control system, the control system being used to receive and output signals.

[0007] Furthermore, the first clamping plate assembly includes a first pressure plate and first cylinders respectively disposed at both ends of the first pressure plate; wherein, the first cylinders are disposed on the mounting plate, and the roll material passes through the space between the first cylinders.

[0008] Furthermore, the second clamping plate assembly includes a second pressure plate and second cylinders respectively disposed at both ends of the second pressure plate; wherein the second cylinders are disposed on the mounting plate, and the roll material passes between the second cylinders.

[0009] Furthermore, the third clamping plate assembly includes a third pressure plate and third cylinders respectively disposed at both ends of the third pressure plate; wherein, the third cylinders are disposed on the mounting plate, and the roll material passes between the third cylinders.

[0010] Furthermore, there is one or more heating wires.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] Automated operation: By setting up a heat sealing device and clamping plate assembly, semi-automatic film connection operation is realized, reducing manual intervention and improving production efficiency.

[0013] Secure connection: The combination of heating wire and clamping plate assembly can firmly heat-press the edges of the new and old films together, ensuring that they will not fall off during high-speed rewinding and improving the film connection quality.

[0014] High consistency: The control system precisely controls the heat sealing temperature, pressure and time, ensuring consistent quality for each connection and avoiding problems such as film wrinkles or misalignment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the heat sealing device.

[0017] Figure 3 This is a schematic diagram of the heat sealing device.

[0018] Reference numerals: 1. Frame; 2. Unwinding device; 3. Guide roller assembly; 4. Heat sealing device; 5. Mounting plate; 6. First clamping plate assembly; 7. Second clamping plate assembly; 8. Third clamping plate assembly; 9. Heating wire; 10. Rewinding device; 11. Tracking device; 12. Control system; 13. First pressure plate; 14. First cylinder; 15. Second pressure plate; 16. Second cylinder; 17. Third pressure plate; 18. Third cylinder. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings.

[0020] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In view of the technical problems described in the background art, such as Figure 1-3As shown, a heat-sealing interface device for a rewinding machine is provided, comprising: a frame 1; an unwinding device 2 disposed at the left end of the frame 1, the unwinding device 2 being used to place and unwind the roll material; a guide roller group 3 disposed along the running path of the film, the guide roller group 3 being used to guide the film and provide tension; and a heat-sealing device 4 mounted on the frame 1 and disposed on the running path of the guide roller group 3; the heat-sealing device 4 includes mounting plates 5 disposed on the frame 1, spaced sequentially. A first clamping plate assembly 6, a second clamping plate assembly 7, and a third clamping plate assembly 8 are disposed on the mounting plate 5; wherein, a heating wire 9 is provided on the mounting plate 5 corresponding to the position of the second clamping plate assembly 7; a winding device 10 is disposed at the right end of the frame 1, and the winding device 10 is used to wind up the roll material; a deviation correction device 11 is disposed at the position of the guide roller group 3, and the deviation correction device 11 is used to correct the position of the roll material; and a control system 12 is used to receive and output signals.

[0022] In the above technical solution, frame 1 is the basic structure of the entire rewinding machine's heat-sealing interface device, used to support and fix other components. Frame 1 is made of high-strength steel to ensure the stability and durability of the device, and can be selected according to the implementation requirements.

[0023] The unwinding device 2 is used to place and unwind the roll material. The unwinding device 2 includes an unwinding shaft and a drive motor. The drive motor is controlled by the control system 12 to realize the automatic unwinding of the roll material. This is existing technology and not an improvement of this technical solution, so it will not be described in detail.

[0024] The guide roller group 3 is arranged along the running path of the film to guide the film and provide tension. The guide roller group 3 includes multiple guide rollers, which are adapted to the actual use needs to reduce friction and wear during film operation. This is not an improvement of this technical solution and will not be described in detail.

[0025] The heat-sealing device 4 is an improvement in this technical solution. It is mainly used to heat-press two films together. Specifically, the heat-sealing device 4 includes a mounting plate 5, a first clamping plate assembly 6, a second clamping plate assembly 7, a third clamping plate assembly 8, and a heating wire 9. In use, when the defective position of the film moves past the mounting plate 5, the first clamping plate assembly 6 and the third clamping plate assembly 8 press down simultaneously. The defective position on the film is manually cut, and the third clamping plate assembly 8 (near the winding side) is released. The film is then pulled and overlapped below the second clamping plate assembly 7. The third clamping plate assembly 8 presses down, followed by the second clamping plate assembly 7. At this time, the heating wire 9 operates, and the second clamping plate assembly 7 is set to release after a delay. Then, the first clamping plate assembly 6 and the third clamping plate assembly 8 release, and the winding device 10 continues winding. The same operation process is used to connect a new film to the previous film, which will not be described in detail here.

[0026] The winding device 10 is used to wind up the roll material. The winding device 10 includes a winding shaft and a drive motor. The drive motor is controlled by the control system 12 to realize the automatic winding of the roll material. This is existing technology and not an improvement of this technical solution, so it will not be described in detail.

[0027] The web-aligning device 11 is used to correct the position of the roll material. The web-aligning device 11 includes a sensor and a web-aligning roller. The sensor detects the position of the film, and the web-aligning roller adjusts the position of the film according to the signal from the sensor to ensure that the film does not shift during operation. This is existing technology and not an improvement of this technical solution, so it will not be described in detail.

[0028] The control system 12 is used to receive and output signals, controlling the operation of the entire device. The control system 12 includes a PLC controller, a touch screen, and sensors. The PLC controller receives signals from the sensors and controls the operation of the unwinding device 2, the heat sealing device 4, the winding device 10, and the web guiding device 11. The touch screen is used for human-machine interaction; operators can set parameters and monitor the device's operating status through the touch screen.

[0029] The above technical solution, by setting up the heat sealing device 4 and the clamping plate assembly, realizes the semi-automatic connection operation of the film, reduces manual intervention, and improves production efficiency; by using the cooperation of the heating wire 9 and the clamping plate assembly, the edges of the new and old films can be firmly heat-pressed together, ensuring that they will not fall off during high-speed rewinding and improving the film connection quality; by using the control system 12 to precisely control the heat sealing temperature, pressure and time, the quality of each connection is guaranteed to be consistent, avoiding the problems of film wrinkles or misalignment.

[0030] In one feasible technical solution, the first clamping plate assembly 6 includes a first pressure plate 13 and first cylinders 14 respectively disposed at both ends of the first pressure plate 13; wherein, the first cylinders 14 are disposed on the mounting plate 5, and the roll material passes through the first cylinders 14.

[0031] The second clamping plate assembly 7 includes a second pressure plate 15 and second cylinders 16 respectively disposed at both ends of the second pressure plate 15; wherein, the second cylinders 16 are disposed on the mounting plate 5, and the roll material passes between the second cylinders 16.

[0032] The third clamping plate assembly 8 includes a third pressure plate 17 and third cylinders 18 respectively disposed at both ends of the third pressure plate 17; wherein, the third cylinders 18 are disposed on the mounting plate 5, and the roll material passes between the third cylinders 18.

[0033] In use, the first pressure plate 13, the second pressure plate 15 and the third pressure plate 17 are pressed down and released by the cylinder.

[0034] Preferably, there is one or more heating wires 9.

[0035] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A rewinder heat seal interface apparatus characterized by, The application relates to a rewinding machine heat-sealing interface device, which comprises the following parts: a rack; a winding-off device arranged at the left end of the rack, which is used for placing a winding material and winding off the winding material; a guide roller group arranged along the running path of the film, which is used for guiding the film and providing tension; a heat-sealing device mounted on the rack and arranged on the running path of the guide roller group; the heat-sealing device comprises a mounting plate arranged on the rack, a first clamping plate assembly, a second clamping plate assembly and a third clamping plate assembly arranged on the mounting plate in sequence and at intervals; wherein the mounting plate is provided with heating wires at the position corresponding to the second clamping plate assembly; a winding device arranged at the right end of the rack, which is used for winding the winding material; a deviation rectifying device arranged at the position of the guide roller group, which is used for rectifying the position of the winding material; a control system used for receiving signals and outputting signals.

2. The rewinding machine heat-sealing interface device according to claim 1, wherein: the first clamping plate assembly comprises a first pressing plate and first air cylinders arranged at both ends of the first pressing plate respectively; wherein the first air cylinders are arranged on the mounting plate, and the winding material passes between the first air cylinders.

3. The rewinding machine heat-sealing interface device according to claim 2, wherein: the second clamping plate assembly comprises a second pressing plate and second air cylinders arranged at both ends of the second pressing plate respectively; wherein the second air cylinders are arranged on the mounting plate, and the winding material passes between the second air cylinders.

4. The rewinding machine heat-sealing interface device according to claim 3, wherein: the third clamping plate assembly comprises a third pressing plate and third air cylinders arranged at both ends of the third pressing plate respectively; wherein the third air cylinders are arranged on the mounting plate, and the winding material passes between the third air cylinders.

5. The rewinding machine heat-sealing interface device according to claim 1, wherein: the heating wires are more than one.