Unwinding device, unwinding control method and film laminator
A technology of unwinding device and unwinding roller, which is applied in the direction of winding strips, transportation and packaging, function indication, etc., can solve the problems of inability to maintain constant tension of film and tape rolls, affecting the quality of lamination, etc.
Inactive Publication Date: 2020-03-10
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Problems solved by technology
However, as the film tape is continuously drawn out, the diameter of the film tape roll wound on the unwinding roller is gradually reduced. Since the rotational resistance provided by the damping mechanism is constant, when the diameter of the film tape roll is gradually reduced , the tension of the extracted film tape gradually increases, so the film release part in the prior art cannot keep the film tape roll at a constant tension, thus affecting the quality of the film
Method used
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[0037] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0038] First aspect, such as figure 1 As shown, the embodiment of the present invention provides a kind of unwinding device, is used for unwinding film tape, and unwinding device comprises unwinding roller 2, drive motor 3, sensor 4 and controller (not shown in the figure); Wherein, The unwinding roller 2 is wound with a film tape roll 5; the drive motor 3 is used to drive the unwinding roller 2 to rotate to release the outermost film tape; the sensor 4 is used to monitor the center of the outermost film tape and the unwinding roller 2 The distance between; the controller is used to control the rotational speed of the drive motor 3 according to the monitored distance, so that the outermost film belt maintains a constant linear velocity...
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The invention relates to the technical field of unwinding equipment, and in particular to an unwinding device, an unwinding control method and a film laminator. The technical problem that unwinding devices in the prior art cannot guarantee constant tension of drawn-out film strips is solved. The unwinding device includes an unwinding roller, a driving motor, a sensor and a controller, a film striproll is wound on the unwinding roller, the driving motor is used for driving the unwinding roller to rotate to release a film strip at the outermost layer, the sensor is used for monitoring the distance between the film strip at the outermost layer and the center of the unwinding roller, and the controller is used for controlling the rotation speed of the driving motor according to the monitoreddistance to make the film strip at the outermost layer maintain at the constant linear speed. The unwinding device of the embodiment can change the rotation speed of the unwinding roller as the diameter of the film strip roll is continuously changed, and thus the constant unwinding speed (the linear speed) can be maintained.
Description
technical field [0001] The invention relates to the technical field of unwinding equipment, in particular to an unwinding device, an unwinding control method and a laminating machine. Background technique [0002] With the continuous development of modern science and technology, cards (such as smart cards) are used more and more widely in people's lives, and people have higher requirements for the quality and functions of cards. Therefore, when processing cards, corresponding The processing equipment should be able to achieve better processing effects; however, the processing equipment in the prior art has many disadvantages. [0003] For example, in the card processing process, it is necessary to cover the surface of the card with the help of laminating equipment to attach anti-counterfeiting film, protective film and other film layers on the surface of the card; The film part is used to place the film tape roll, and the film covering part is used to extract the film tape ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B65H16/10B65H26/08
CPCB65H16/103B65H26/08B65H2511/14B65H2513/10B65H2220/01B65H2220/02
Inventor刘丙毓王璀孙永文王维佳贾全生刘会华蔡胜国
OwnerAEROSPACE INFORMATION