CN211920335U - Take tension automatic control's receipts and release roll system - Google Patents

Take tension automatic control's receipts and release roll system Download PDF

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Publication number
CN211920335U
CN211920335U CN202020117269.9U CN202020117269U CN211920335U CN 211920335 U CN211920335 U CN 211920335U CN 202020117269 U CN202020117269 U CN 202020117269U CN 211920335 U CN211920335 U CN 211920335U
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Prior art keywords
roller
speed
unwinding
winding
roll
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CN202020117269.9U
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Chinese (zh)
Inventor
夏一娇
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Guangdong Kunchuan Industrial Co ltd
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Guangdong Kunchuan Industrial Co ltd
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Priority to CN202020117269.9U priority Critical patent/CN211920335U/en
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Abstract

The utility model discloses a take-up and pay-off system with tension automatic control in the take-up and pay-off control system, including unreeling roller and wind-up roll, be equipped with a plurality of submerged driving roll that is connected with the driving roll motor between unreeling roller and the wind-up roll, the film unreels through the unreeling roller, winds around submerged driving roll in proper order and then rolls on the wind-up roll, the unreeling roller is connected with magnetic powder brake, the controller adjusts the electric current of magnetic powder brake according to the change of the roll diameter of unreeling roller; the water outlet end of each submerged driving roller is provided with a corresponding speed measuring roller, the speed measuring rollers, the controller and the driving roller motor are connected to form closed-loop control, and the driving roller motor works in a torque mode. The utility model discloses not only can be so that the film obtains steady tension, its speed fluctuation also can be controlled in the minimum range simultaneously, no matter whether there is the phenomenon of skidding between film and the roller can not be out of control, speed and tension homoenergetic obtain intelligent control.

Description

Take tension automatic control's receipts and release roll system
Technical Field
The utility model relates to a receive and release the control system, specific theory relates to a take tension automatic control's receipts to release the roll system.
Background
In the unwinding and winding processes of the film, because the diameter of the unwound coil stock changes in the operation process, one or more tension detectors need to be arranged between every two driving rollers in order to ensure the uniform tension of the film, the rotation of the driving motor is controlled through the feedback of the tension detectors, and finally the output of constant tension and constant speed is achieved.
However, the control mode is easy to have the phenomena of large tension fluctuation, unstable speed and even out of control under special environment. Taking a water plating device as an example, because the film of the water plating device carries liquid when the roller is submerged, a water film is easily formed between the roller and the film, and further, relative displacement is generated between the film and the roller. At this time, the linear velocity of the driving roller is not necessarily the tape running linear velocity of the film, and the phenomenon that the tension and the speed are out of control at the same time can be caused by controlling the tape running speed by using the tension feedback.
The above-mentioned drawbacks are worth solving.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a take tension automatic control's receipts and release coil system.
The utility model discloses technical scheme as follows:
a take-up and pay-off system with automatic tension control comprises an unwinding roller and a winding roller, wherein a plurality of submerged driving rollers are arranged between the unwinding roller and the winding roller, the submerged driving rollers are connected with a driving roller motor, a film is unwound by the unwinding roller, sequentially bypasses the submerged driving rollers and is wound on the winding roller, and the take-up and pay-off system is characterized in that,
the unwinding roller is connected with a magnetic powder brake, the magnetic powder brake is connected with a controller, and the controller adjusts the current of the magnetic powder brake according to the change of the winding diameter of the unwinding roller;
every the play water end of submerged drive roll all is equipped with the roller that tests the speed of correspondence, test the speed the roller with the drive roll motor all with the controller is connected, test the speed the roller the controller with the drive roll motor is connected and is formed closed-loop control, just the drive roll motor work is in the moment of torsion mode.
According to above scheme the utility model discloses, a serial communication port, unreel roller department and be equipped with a roll footpath measuring device, roll up footpath measuring device with the controller is connected.
According to above-mentioned scheme the utility model discloses, a serial communication port, the roller that tests the speed is rubber covered roll.
According to above scheme the utility model discloses, a serial communication port, the roller tests the speed and the compression roller pressfitting contact tests the speed, the film warp the speed test the roller with wear out between the compression roller tests the speed.
According to the above scheme the utility model discloses, a serial communication port, the front side of wind-up roll is equipped with initiative constant speed roller, initiative constant speed roller is connected with constant speed roller motor, constant speed roller motor is connected with the controller.
Furthermore, the output end of the driving constant speed roller is provided with a tension roller, and the tension roller is connected with the controller.
According to the above scheme the utility model discloses, its beneficial effect lies in, the utility model discloses not only can make the film obtain steady tension, its speed fluctuation also can be controlled at the minimum within range simultaneously, no matter whether there is the phenomenon of skidding between film and the roller can not be out of control, speed and tension homoenergetic obtain intelligent control.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 10, an unwinding roller; 20. a submerged drive roll; 21. a drive roll motor; 31. a speed measuring roller; 32. a speed measuring press roller; 40. an active constant speed roller; 41. a constant speed roller motor; 50. a tension roller; 60. a wind-up roll; 70. a film.
Detailed Description
The invention is further described with reference to the following figures and embodiments:
as shown in fig. 1, a take-up and pay-off system with automatic tension control comprises an unwinding roller 10 and a winding roller 60, wherein a plurality of submerged driving rollers 20 are arranged between the unwinding roller 10 and the winding roller 60, the submerged driving rollers 20 are connected with a driving roller motor 21, a film 70 is unwound by the unwinding roller 10, and is wound on the winding roller 60 after sequentially bypassing the submerged driving rollers 20.
The utility model discloses a passively unreel, drive roll motor 21 and the automatic closed loop's of the roller 31 that tests the speed control mode obtains the uniformity of very linear tension output and speed.
1. Passive unwinding
The unwinding roller 10 is connected with a magnetic powder brake, and the magnetic powder brake is connected with a controller. Under the condition that the output torque is not changed, the tension obtained at the roll diameter tangent point of the unwinding roller 10 is inversely proportional to the roll diameter, and when the tension of the constant roll diameter tangent point is required to be obtained, the output torque is required to be changed in direct proportion to the roll diameter; the output torque and the current of the magnetic powder brake are in a proportional linear relationship, so the output tension of the magnetic powder brake is set according to the characteristics of materials and process requirements, and the controller adjusts the current of the magnetic powder brake according to the change of the winding diameter of the unwinding roller 10. The current of the magnetic powder brake is adjusted to obtain a very linear tension output, so that the tension will not change as long as the tape running speed of the film 70 is ensured to be constant (no matter how fast it is). In this embodiment, the current of the magnetic powder brake needs to be adjusted, otherwise the output torque of the magnetic powder brake is inconvenient, and the output tension changes when the winding diameter changes.
Preferably, a roll diameter measuring device is arranged at the unwinding roller 10, the roll diameter measuring device is connected with the controller, and the change of the roll diameter of the unwinding roller 10 is measured through the roll diameter measuring device. The roll up footpath measuring device can choose for use wireless sensor such as laser sensor, infrared sensor, ultrasonic sensor, or other wired measuring device, the utility model discloses not use this as the limit.
2. Automatic closed-loop control of drive roll motor and speed measuring roll
The water outlet end of each submerged driving roller 20 is provided with a corresponding speed measuring roller 31, the speed measuring rollers 31 and the driving roller motor 21 are connected with a controller, and the output torque of the driving roller motor 21 is set through the controller according to the roller diameter of the submerged driving roller 20 and the tension required by the process. The speed measuring roller 31, the controller and the drive roller motor 21 are connected to form closed-loop control, and the drive roller motor 21 works in a torque mode, and the output torque is limited within a set range and is independent of the running speed.
When the speed measuring roller 31 detects that the belt speed of the film 70 changes, the controller compensates by adjusting the rotating speed of the driving roller motor 21; since the drive roll motor 21 adopts the torque output mode, the speed variation of the drive roll motor 21 does not affect the tension of the film 70. Therefore, when a slip phenomenon occurs between one submerged driving roll 20 and the film 70, the corresponding tachometer roll 31 can feed back the speed fluctuation in real time; the controller increases the rotation speed of the corresponding drive roll motor 21 in real time according to the feedback of the speed measuring roll 31 (because the drive roll motor 21 adopts a torque output mode, the tension fluctuation cannot be caused by the speed) until the speed returns to normal.
Preferably, the tachometer roller 31 is a rubber covered roller, and the rubber covered material is a material with a large friction coefficient and low hardness. In this embodiment, the tachometer roller 31 is in press contact with the tachometer roller 32, and the film 70 passes through between the tachometer roller 31 and the tachometer roller 32. The speed measuring press roller 32 is matched with the speed measuring roller 31, so that the slipping phenomenon is further reduced.
In this embodiment, the front side of the wind-up roll 60 is provided with the active fixed speed roll 40, the active fixed speed roll 40 is connected with the fixed speed roll motor 41, the fixed speed roll motor 41 is connected with the controller, the speed of the active fixed speed roll 40 is the set speed of the system, and the wind-up speeds of other active motors including the active fixed speed roll 40 are all used as reference. The output end of the driving constant speed roller 40 is provided with a tension roller 50, the tension roller 50 is connected with a controller, and the winding tension is detected through the tension roller 50.
The utility model discloses not only can obtain steady tension, the fluctuation of speed also can be controlled within the minimum limit simultaneously, no matter can have between submerged drive roll 20 and the film 70 the phenomenon of skidding and can not be out of control, no matter speed or tension can both obtain intelligent control.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
The above exemplary description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above manner, and various improvements made by the method concept and technical solution of the present invention or by directly applying the concept and technical solution of the present invention to other occasions without improvement are all within the protection scope of the present invention.

Claims (6)

1. A take-up and pay-off system with automatic tension control comprises an unwinding roller and a winding roller, wherein a plurality of submerged driving rollers are arranged between the unwinding roller and the winding roller, the submerged driving rollers are connected with a driving roller motor, a film is unwound by the unwinding roller, sequentially bypasses the submerged driving rollers and is wound on the winding roller, and the take-up and pay-off system is characterized in that,
the unwinding roller is connected with a magnetic powder brake, the magnetic powder brake is connected with a controller, and the controller adjusts the current of the magnetic powder brake according to the change of the winding diameter of the unwinding roller;
every the play water end of submerged drive roll all is equipped with the roller that tests the speed of correspondence, test the speed the roller with the drive roll motor all with the controller is connected, test the speed the roller the controller with the drive roll motor is connected and is formed closed-loop control, just the drive roll motor work is in the moment of torsion mode.
2. The winding and unwinding system with automatic tension control as claimed in claim 1, wherein a winding diameter measuring device is disposed at the unwinding roller, and the winding diameter measuring device is connected to the controller.
3. The winding and unwinding system with automatic tension control as claimed in claim 1, wherein the speed measuring roller is a rubber covered roller.
4. The winding and unwinding system with automatic tension control as claimed in claim 1, wherein the speed measuring roller is in press contact with the speed measuring pressing roller, and the film passes through between the speed measuring roller and the speed measuring pressing roller.
5. The winding and unwinding system with automatic tension control as claimed in claim 1, wherein a driving constant speed roller is arranged on the front side of the winding roller, the driving constant speed roller is connected with a constant speed roller motor, and the constant speed roller motor is connected with a controller.
6. The winding and unwinding system with automatic tension control as claimed in claim 5, wherein a tension roller is provided at an output end of the active constant speed roller, and the tension roller is connected to the controller.
CN202020117269.9U 2020-01-17 2020-01-17 Take tension automatic control's receipts and release roll system Active CN211920335U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020117269.9U CN211920335U (en) 2020-01-17 2020-01-17 Take tension automatic control's receipts and release roll system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020117269.9U CN211920335U (en) 2020-01-17 2020-01-17 Take tension automatic control's receipts and release roll system

Publications (1)

Publication Number Publication Date
CN211920335U true CN211920335U (en) 2020-11-13

Family

ID=73329612

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020117269.9U Active CN211920335U (en) 2020-01-17 2020-01-17 Take tension automatic control's receipts and release roll system

Country Status (1)

Country Link
CN (1) CN211920335U (en)

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