JP2019055831A - Filament winding apparatus - Google Patents

Abstract

To provide a filament winding apparatus capable of suppressing wear and the like of a fiber bundle caused by differences among rotational speeds of respective rollers.SOLUTION: A filament winding apparatus 10 includes: a non-driven roller 27; motor driven rollers 25, 26 located upstream of the non-driven roller 27; and a control unit 40 that detects a rotational speed of the non-driven roller 27 and controls rotational speeds of the motor driven rollers 25, 26 on the basis of the detected rotational speed of the non-driven roller 27. The control unit 40 controls the rotational speeds of the motor driven rollers 25, 26 so that the rotational speeds of the motor driven rollers 25, 26 become rotational speeds within a predetermined range with respect to the rotational speed of the non-driven roller 27.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a filament winding apparatus.

  In the filament winding apparatus (hereinafter referred to as FW apparatus) disclosed in Patent Document 1, fiber bundles are conveyed and supplied from a bobbin to a tank (liner) via a plurality of rollers. The fiber bundle is conveyed by being wound by the rotation of the tank.

JP 2011-245780 A

  However, in the above FW device, it is conceivable that a tension fluctuation occurs in the fiber bundle being conveyed due to fluctuations in the winding speed of the fiber bundle by the tank, and a difference in rotational speed occurs between a plurality of rollers. Then, friction between the roller and the fiber bundle is generated due to the difference in the rotation speed, so that the fiber bundle may be worn, broken, wound, or the like (hereinafter simply referred to as wear).

  An object of this invention is to provide the FW apparatus by which abrasion etc. of the fiber bundle resulting from the rotational speed difference between rollers are suppressed.

  The FW device according to claim 1 detects a free roller, a motor drive roller located upstream of the free roller, and a rotational speed of the free roller, and based on the detected rotational speed, And a controller for controlling the rotational speed, wherein the controller controls the rotational speed of the motor-driven roller so that the rotational speed of the motor-driven roller approaches the rotational speed of the free roller. To do.

  In the FW device according to the first aspect, the motor drive roller is positioned upstream of the free roller. And a control part detects the rotational speed of a free roller, and controls the rotational speed of a motor drive roller based on the detected rotational speed.

  Here, the control unit sets the rotation speed of the motor drive roller within a predetermined range with respect to the rotation speed of the free roller (specifically, the rotation speed of the motor drive roller approaches the rotation speed of the free roller). B) Control the rotation speed of the motor drive roller. For this reason, the rotational speed difference between the free roller and the motor drive roller located upstream of the free roller is reduced within a predetermined range. As a result, wear of the fiber bundle on the roller is suppressed.

  As described above, the present invention has an excellent effect that, in an FW device including a plurality of rollers, wear of a fiber bundle caused by a difference in rotational speed between the rollers is suppressed.

It is a whole lineblock diagram showing the FW device of an embodiment.

  Hereinafter, the FW device 10 according to the embodiment of the present invention will be described with reference to FIG.

  FIG. 1 shows the overall configuration of the FW device 10 of the present embodiment. The FW device 10 of this embodiment is a device for manufacturing a high-pressure hydrogen tank mounted on a fuel cell vehicle, and is used for supplying a fiber bundle 90 at a high speed and winding it around a tank 80 (liner).

  As shown in FIG. 1, the FW device 10 includes an unwinding unit 20, an icing unit 30, and a control unit 40.

  The unwinding unit 20 includes a plurality of (four in this embodiment) bobbins 21 arranged in order from the upstream side, a plurality of unwinding rollers 22 provided corresponding to each bobbin 21, and a bundling roller 23. The active dancer 24 and a plurality (three in the present embodiment) of conveying rollers 25, 26, and 27 are configured.

  The bobbin 21 is a member around which the fiber bundle 90 is wound. For example, the fiber bundle 90 is a so-called prepreg in which a carbon fiber bundle is impregnated with a thermosetting resin, but may be a so-called dry carbon fiber bundle that is not impregnated with a resin.

  The unwinding roller 22 conveys the fiber bundle 90 unwound from the bobbin 21 to the bundling roller 23. The bundling roller 23 aligns the fiber bundle 90 unwound from the bobbin 21 and unwinds it to the active dancer 24. The active dancer 24 adjusts the tension of the fiber bundle 90 by moving the roller 24A (see the arrow in FIG. 1). The fiber bundle 90 whose tension has been adjusted is conveyed to the icing unit 30 via the plurality of conveying rollers 25, 26 and 27. The ikuchi portion 30 is sandwiched and widened by applying an appropriate pressure to the fiber bundle 90. The fiber bundle 90 widened by the ikuchi unit 30 is supplied to the tank 80 (liner).

  The plurality of transport rollers 25, 26, 27 located downstream of the active dancer 24 are configured by two motor drive rollers 25, 26 and a free roller 27 arranged in order from the upstream side.

  The free roller 27 is provided with an encoder (not shown) connected to the control unit 40. The control unit 40 detects the rotational speed of the free roller 27 using an encoder.

  The control unit 40 is connected to the two motor drive rollers 25 and 26. The control unit 40 controls the rotation speeds of the two motor drive rollers 25 and 26 based on the detected rotation speed of the free roller 27. Specifically, the controller 40 drives the motor so that the rotational speeds of the motor drive rollers 25 and 26 are within a predetermined range (80 to 120% in this embodiment) with respect to the rotational speed of the free roller 27. The rotational speed of the rollers 25 and 26 is controlled. The control method of the control unit 40 is not particularly limited, and may be feedback control or feedforward control.

<Effect>
Next, the effect of this embodiment is demonstrated.

  In the present embodiment, the motor drive rollers 25 and 26 are located upstream of the free roller 27. And the control part 40 detects the rotational speed of the free roller 27, and controls the rotational speed of the motor drive rollers 25 and 26 based on the detected rotational speed.

  Here, the control unit 40 sets the rotation speed of the motor drive rollers 25 and 26 within a predetermined range with respect to the rotation speed of the free roller 27 (that is, the rotation speed of the motor drive rollers 25 and 26 is equal to the free roller 27). The rotational speed of the motor drive rollers 25 and 26 is controlled so as to approach the rotational speed of For this reason, the rotational speed difference between the free roller 27 and the motor drive rollers 25 and 26 located upstream of the free roller 27 is reduced within a predetermined range. As a result, abrasion of the fiber bundle 90 on the roller is suppressed, and thus the tank 80 with stable quality can be manufactured.

  In the present embodiment, the predetermined range in which the rotation speeds of the motor drive rollers 25 and 26 are controlled is a range of 80 to 120% of the rotation speed of the free roller 27. For this reason, the rotational speed difference between the rollers is greatly reduced, and as a result, the wear of the fiber bundle 90 on the rollers is further suppressed.

  In the present embodiment, two motor drive rollers 25 and 26 are positioned upstream of the free roller 27, and the rotational speeds of the two motor drive rollers 25 and 26 are based on the detected rotational speed of the free roller 27. Controlled. For this reason, the wear of the fiber bundle 90 and the like are further suppressed as compared with a mode in which the motor drive roller is one.

  In this embodiment, the free roller 27 for detecting the rotation speed and the motor drive rollers 25 and 26 for which the rotation speed is controlled based on the detected rotation speed are provided between the active dancer 24 and the icing unit 30. Is located. That is, the free roller 27 whose rotation speed is detected and the motor drive rollers 25 and 26 whose rotation speed is controlled based on the detected rotation speed are arranged in a section where the tension is cut off. For this reason, the wear of the fiber bundle 90 that is likely to occur in the FW device 10 is effectively suppressed.

  By the way, the frictional force acting on the fiber bundle 90 on the roller varies depending on the type of the fiber bundle 90 to be conveyed, for example, whether it is a prepreg or dry carbon fiber. Therefore, more stable quality can be obtained by inputting correction data in advance to the control unit 40 according to the type of the fiber bundle 90.

[Supplementary explanation of the above embodiment]
In the above embodiment, the example in which the control unit 40 controls the rotational speeds of the two motor drive rollers 25 and 26 has been described, but the present invention is not limited to this. For example, one of the two motor drive rollers 25 and 26 in the above embodiment may be changed to a roller that is not motor driven.

  In the above embodiment, the motor drive rollers 25 and 26 and the free roller 27 around which the fiber bundle 90 unwound from the four bobbins 21 is wound in common have been described. However, the present invention is not limited to this. For example, the motor drive rollers 25, 26 and the free roller 27 may be provided separately for each of the four (plurality) of fiber bundles 90 unwound from the four (plurality) bobbins 21. Then, the rotation speed is detected for each of the four free rollers on which the respective fiber bundles 90 are wound, and the rotation of the motor driving roller on which the corresponding fiber bundle 90 is wound based on the detected rotation speed. It is good also as a structure which controls speed.

  Moreover, although the FW apparatus for manufacturing a tank was demonstrated in the said embodiment, the thing manufactured with the FW apparatus of this invention is not limited to a tank.

10 FW device (filament winding device)
25 Motor drive roller 27 Free roller 40 Control unit

Claims (1)

With free rollers,
A motor-driven roller located upstream of the free roller;
A controller that detects the rotational speed of the free roller and controls the rotational speed of the motor-driven roller based on the detected rotational speed;
A filament winding apparatus comprising:
The controller controls the rotation speed of the motor drive roller so that the rotation speed of the motor drive roller approaches the rotation speed of the free roller;
Filament winding device.