JP2019107772A - Filament winding apparatus - Google Patents

Abstract

To provide the filament winding apparatus capable of securing a stable resin impregnation amount to fibers even when a feeding speed of the fibers is changed due to a change in a winding speed of fibers to a tank.SOLUTION: An FW apparatus 10 comprises: an active dancer 53 that is disposed in a fiber bundle supply path 11 between a bobbin 31 and a liner 21, an impregnation mechanism 33 that is disposed between the bobbin 31 of the fiber bundle supply path 11 and the active dancer 53, and impregnates a fiber bundle F with a resin, an encoder 52 that is disposed between the impregnation mechanism 33 of the fiber bundle supply path 11 and the active dancer 53, and detects a supply speed of the fiber bundle F, and a control part 50 that controls the resin supply amount of the impregnating mechanism 33 based on the supply speed of the fiber bundle F detected by the encoder 52.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a filament winding apparatus.

  For example, Patent Document 1 includes a bobbin for supplying a fiber, an active dancer for adjusting the tension of the supplied fiber, a resin-impregnated portion for impregnating the fiber with a resin, and a winding device for winding the fiber around a tank. The technology of a filament winding device is disclosed.

  In the filament winding device described in Patent Document 1, the fiber supplied from the bobbin passes through the active dancer to adjust the tension, and the resin is impregnated with the resin in the resin impregnation portion and sent to the winding device. The winding device is configured to wind the fiber by helical winding or hoop winding around the outer peripheral surface of the tank while rotating the tank.

Patent No. 6191654

  However, in the case of the filament winding device described in Patent Document 1, the winding speed is different between the helical winding and the hoop winding. Also, even with the same winding method, the winding speed changes at the beginning and end of winding on the tank. When the winding speed changes, the feeding speed of the fibers passing through the resin impregnation part also changes, and there is a problem that it is difficult to impregnate a stable amount of resin. If an active dancer is disposed on the downstream side in the fiber supply direction of the resin impregnation portion in order to absorb changes in winding speed, rapid speed changes such as helical winding can be absorbed by the active dancer. However, the active dancer can not absorb the speed change at the beginning and end of the hoop winding, and there is a problem that a stable resin impregnation amount to the fiber may not be secured.

  The present invention has been made to solve such a problem, and it is desirable to ensure a stable resin impregnation amount to fibers even if the feed rate of fibers is changed due to the change of the winding speed of fibers to the tank. It is an object of the present invention to provide a filament winding device capable of

  The present invention is a filament winding apparatus for unwinding fibers from a bobbin and winding the same around a tank, wherein the active dancer is disposed in a fiber supply path between the bobbin and the tank, the bobbin of the fiber supply path, and An encoder disposed between the active dancer and a resin impregnation unit for impregnating the fibers with the resin, and an encoder disposed between the resin impregnation unit of the fiber supply path and the active dancer for detecting the supply speed of the fibers And a control unit that controls the resin supply amount of the resin impregnation unit based on the fiber supply rate detected by the encoder.

  In the filament winding device according to the present invention, since the resin-impregnated part is disposed at a position between the bobbin and the active dancer in the fiber feeding path, the feeding speed of the fiber is increased by the rapid change of the winding speed by helical winding. Even if it changes, the change in the supply speed of the fiber is absorbed by the active dancer located closer to the winding side of the fiber supply path than the resin impregnated part. As a result, a stable amount of resin impregnated into the fibers is secured in the resin impregnated portion. In addition, since the encoder is disposed at a position between the resin impregnation portion of the fiber supply passage and the active dancer, the encoder detects the supply speed of the fiber between the resin impregnation portion and the active dancer.

  With this configuration, even if the feed speed of the fiber is changed due to the change in the speed of the start or the end of the hoop winding, the feed speed of the fiber is detected by the encoder, and the control section impregnates the resin based on the detected feed speed. Resin supply rate is controlled. As a result, a stable amount of resin impregnated into the fibers is secured in the resin impregnated portion.

  According to the present invention, it is possible to provide a filament winding apparatus capable of securing a stable resin impregnation amount to fibers even if the feeding speed of fibers is changed due to the change of the winding speed of fibers to the tank.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the tank produced by the filament winding apparatus which concerns on embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The schematic diagram which represented typically the structure of the filament winding apparatus which concerns on embodiment of this invention. It is an expanded sectional view of a resin impregnation part of a filament winding device concerning an embodiment of the present invention, and Drawing 3 (a) shows the state where a blade has not moved, and Drawing 3 (b) shows a state where a blade moved. Indicates The graph which shows the relation between the temperature of resin and viscosity in the filament winding device concerning the embodiment of the present invention. The graph which shows the relationship between the time of the hoop winding in the filament winding device concerning the embodiment of the present invention, and the supply speed of a fiber bundle. The graph which shows the relationship between the time of the helical winding in the filament winding device concerning the embodiment of the present invention, and the supply speed of a fiber bundle. FIG. 7A is a perspective view of a tank in which a fiber bundle is wound by a filament winding device according to an embodiment of the present invention, FIG. 7A shows a state in which the fiber bundle is wound by helical winding, and FIG. The fiber bundle is in a state of being wound by hoop winding.

  A filament winding apparatus (Filament Winding Process, hereinafter referred to as an FW apparatus) 10 according to an embodiment to which a filament winding apparatus according to the present invention is applied will be described with reference to the drawings.

  The FW apparatus 10 which concerns on embodiment consists of an apparatus which produces the tank 20 shown in FIG. The tank 20 has a liner 21, a reinforcing layer 22 formed on the outer peripheral surface of the liner 21, and caps 23 and 24. The tank 20 has a property of hardly transmitting gas, so-called gas barrier property, and is configured to be filled with a relatively high pressure gas such as hydrogen inside. The liner 21 of the present embodiment corresponds to the tank in the FW device according to the present invention.

  The liner 21 is formed of a cylindrical hollow container and is made of carbon fiber reinforced plastic (CFRP: hereinafter referred to as CFRP) in which a plastic such as polyamide resin (PA) is reinforced with carbon fiber (Carbon Fiber). ing. The material of the liner 21 may be an engineering plastic or metal material having high mechanical strength such as so-called nylon (registered trademark).

  The liner 21 has a cylinder portion 25 and a pair of dome portions 26 provided at both ends of the cylinder portion 25. The cylinder portion 25 is formed in a cylindrical shape, and each dome portion 26 is formed of a hollow substantially hemispherical body and is integrally formed with the cylinder portion 25. Each dome portion 26 has a mouthpiece mounting portion (not shown), and the mouthpieces 23 and 24 are mounted on the mouthpiece mounting portion.

  The base 23 is made of a metal material and protrudes from the dome portion 26 in the axial direction of the liner 21. The mouthpiece 24 is made of a metal material, like the mouthpiece 23, and protrudes from the dome portion 26 in the axial direction of the liner 21. The mouthpiece 23 has a passage through which high pressure gas flows, a pipe for filling the high pressure gas into the inside of the liner 21 is connected, and the high pressure gas flows. The mouthpieces 23 and 24 have a function as a rotation support portion that supports a rotation shaft that rotates the liner 21.

  The reinforcing layer 22 is formed by winding the fiber bundle F around the outer peripheral surface of the liner 21. The fiber bundle F is made of fibers such as glass fiber (Glasss Fiber), carbon fiber (Carbon Fiber), and aramid fiber (Aromatic Polyamide Fiber). The fiber bundle F is a fiber bundle in which several tens to several tens of thousands of so-called multifilaments formed by twisting several tens of single fibers into one yarn are bundled. The formation of the reinforcing layer 22 is performed by the FW device 10. In addition, the fiber bundle F of this embodiment respond | corresponds to the fiber of the filament winding apparatus which concerns on this invention.

  As shown in FIG. 2, the FW device 10 includes an impregnating unit 30 provided in the fiber bundle supply path 11, a fiber winding unit 40, and a control unit 50. The control unit 50 has a central processing unit that performs arithmetic processing and a memory that stores a control program, and controls each component based on detection information of the sensor and setting value information. The FW device 10 supplies the fiber bundle F impregnated with the resin from the impregnation unit 30, and causes the fiber winding unit 40 to wind the supplied fiber bundle F around the outer peripheral surface of the liner 21 by helical winding or hoop winding. Is configured. The fiber bundle supply path 11 of the present embodiment corresponds to the fiber supply path of the FW device according to the present invention.

  The impregnation unit 30 includes a bobbin 31, a fiber opening mechanism 32, an impregnation mechanism 33, a nip roller 34, feed rollers 35, 36, 37, 38, and a cooling chiller (not shown). In the impregnation unit 30, the supply rate (m / sec) of the fiber bundle F to be supplied is kept constant. The impregnation mechanism 33 of the present embodiment corresponds to the resin impregnation portion in the FW device according to the present invention.

  The bobbin 31 is formed of a cylindrical member around which the fiber bundle F is wound, and is set in a creel stand (not shown) that supports the fiber bundle F so as to unwind it while adjusting the tension. The bobbin 31 is composed of a single or a plurality of bobbins, and the fiber bundles F are unwound from the bobbins 31 supported by the creel stand toward the fiber opening mechanism 32.

  The opening mechanism 32 has a plurality of opening rollers 32a, and an opening position where the roller 32a disposed at the central portion sandwiches the fiber bundle F and a release position where the opening of the fiber bundle F is released. The space is moved by an actuator such as an air cylinder (not shown). The fiber bundle F unwound from the bobbin 31 by the fiber opening mechanism 32 widens its width and becomes flat. That is, it is opened. The fiber opening mechanism 32 is connected to the control unit 50, and the operation of the fiber opening mechanism 32 is controlled by the control unit 50.

  As shown in FIGS. 2 and 3 (a) and 3 (b), the impregnation mechanism 33 includes resin application rollers 41 and 42, blades 43 and 44, resin reservoirs 45 and 46, and blades 43 and 44. And an actuator (not shown) for moving the The impregnation mechanism 33 is configured to impregnate the fiber bundle F opened by the opening mechanism 32 with the resin and to feed the resin bundle F toward the nip roller 34.

The resin application roller 41 is formed in a cylindrical shape, and is rotatably supported by a support shaft (not shown). The roller surface 41a of the outer periphery of the resin application roller 41 is in contact with the resin stored in the resin storage portion 45, and the resin is applied to the roller surface 41a by rotating in the arrow direction. The fiber bundle F is wound around the resin application roller 41, and the resin applied to the roller surface 41a is impregnated in the fiber bundle F. Like the resin application roller 41, the resin application roller 42 is also formed in a cylindrical shape, and is rotatably supported by a support shaft (not shown).
In the resin application roller 42, the roller surface 42a of the outer periphery is in contact with the resin stored in the resin storage portion 46, and the resin is applied to the roller surface 42a by rotating in the arrow direction. The fiber bundle F is wound around the resin application roller 42, and the resin applied to the roller surface 42a is impregnated in the fiber bundle F.

  The blade 43 constitutes a part of the resin storage portion 45, and moves in a direction approaching the resin application roller 41 by the actuator, thereby reducing the gap between the roller surface 41a of the resin application roller 41 and the blade 43. The amount of resin supplied to the roller surface 41a is reduced, and the amount of resin impregnated into the fiber bundle F is reduced. On the other hand, the blade 43 moves in a direction away from the resin application roller 41, and the gap between the roller surface 41a of the resin application roller 41 and the blade 43 is increased to supply the resin supply amount applied to the roller surface 41a. To increase the amount of resin impregnated into the fiber bundle F.

  Similarly to the blade 43, the blade 44 constitutes a part of the resin reservoir 46, moves by the actuator in the direction approaching the resin application roller 42, and forms a gap between the roller surface 42a of the resin application roller 42 and the blade 44. By reducing the amount of resin supplied to the roller surface 42 a and the amount of resin impregnated into the fiber bundle F. On the other hand, the blade 44 moves in a direction away from the resin application roller 42, and the gap between the roller surface 42a of the resin application roller 42 and the blade 44 is increased to supply the resin supply amount applied to the roller surface 42a. To increase the amount of resin impregnated into the fiber bundle F.

  The resin stored in each of the resin storage portions 45 and 46 is made of an uncured thermosetting resin such as epoxy resin (EP), polyester resin (PE) or polyamide resin (PA), and is formed on the roller surfaces 41a and 42a. It has fluidity to be applied respectively. The actuator is connected to the control unit 50, and its operation is controlled by the control unit 50 to move the blades 43 and 44, respectively.

  The nip roller 34 is composed of a plurality of rollers, and each roller is rotatably supported by a support shaft (not shown). The nip roller 34 is configured to pass the fiber bundle F delivered from the impregnating mechanism 33 by rotation of each roller and deliver the fiber bundle F toward the fiber winding unit 40.

  The nip roller 34 causes the fiber bundle F to pass through each roller, whereby the tension of the fiber bundle F on the unwinding side upstream of the fiber feeding path and the tension of the fiber bundle F on the downstream side of the fiber feeding path It has a configuration to divide. With this configuration, the tension on the unwinding side applied to the fiber bundle F and the tension on the winding side do not substantially affect each other, and become independent from each other, and in the impregnating unit 30, the feeding speed of the fiber bundle F In the fiber winding section 40, the feeding speed of the fiber bundle F is made variable.

  The cooling chiller has a cooling mechanism for cooling the inside of each of the nip rollers 34 so as to cool the fiber bundle F which is impregnated with the resin by the impregnating mechanism 33 and the temperature (° C.) rises. As shown in FIG. 4, the resin impregnated in the fiber bundle F has a characteristic that the viscosity (Pa · s) decreases as the temperature increases. When the viscosity of the resin decreases, the fluidity increases, and when the fiber bundle F is wound around the outer peripheral surface of the liner 21, that is, when the fiber bundle F is wound by the liner 21, the resin is scattered from the fiber bundle F There is a fear. By reducing the temperature of the resin with a cooling chiller, scattering of the resin from the fiber bundle F is suppressed.

  The cooling mechanism of the cooling chiller may be a water cooling system in which cooling water is circulated in each roller and the cooling water is circulated between the heat exchanger and the cooling mechanism, or air cooling in which cold air is sent into each roller via the heat exchanger. May be The temperature of the resin is a preset target temperature set in advance based on data such as the characteristics of the impregnated resin, the supply speed of the fiber bundle F (m / sec), the setting parameters of the FW apparatus 10, and the experimental values. Adjusted based on Specifically, the temperature adjustment is performed by feedback control of the operation of the cooling mechanism by the control unit 50 connected to the cooling mechanism based on the temperature detected by a temperature sensor (not shown) provided on the nip roller 34. To be done.

  The feed rollers 35, 36 are rotatably supported by support shafts (not shown) respectively disposed between the bobbin 31 and the opening mechanism 32 in the fiber bundle supply path 11, as shown in FIG. The fiber bundle F is fed to the fiber opening mechanism 32 by changing the supply direction of the fiber bundle F unwound from the above. The feed rollers 37 and 38 are rotatably supported by support shafts (not shown) respectively disposed between the fiber opening mechanism 32 and the impregnating mechanism 33 in the fiber bundle supply path 11, and are fed from the fiber opening mechanism 32. The feeding direction of the fiber bundle F is changed to send the fiber bundle F to the impregnation mechanism 33.

  As shown in FIG. 2, the fiber winding unit 40 includes a tension roller 51, an encoder 52, an active dancer 53, feed rollers 54, 55, and 56 provided in the fiber bundle supply path 11, and a fiber bundle supply mechanism. And a fiber bundle winding mechanism 58.

  The tension roller 51 is disposed between the nip roller 34 and the active dancer 53 in the fiber bundle supply path 11. The tension roller 51 is connected to a roller 51a as a fulcrum rotatably supported by a support shaft (not shown), a swingable roller 51b, a stay 51c provided between the roller 51a and the roller 51b, and a stay 51c. And a cylinder 51d having a piston rod.

  The cylinder 51d is connected to the control unit 50, and the piston rod is expanded and contracted by the control unit 50, and accordingly, a predetermined pressure (MPa) is applied to the stay 51c to swing the roller 51b, and the fiber bundle F is A tension (N) is applied to adjust the tension of the fiber bundle F. The fiber bundle F whose tension has been adjusted by the tension roller 51 is sent to the active dancer 53.

  The encoder 52 is for detecting the supply speed of the fiber bundle F, and is disposed between the nip roller 34 and the active dancer 53 in the fiber bundle supply path 11. In the present embodiment, the encoder 52 is attached to the roller 51b of the tension roller 51, and is configured by a rotary encoder that rotates with the roller 51b. The rotary encoder is connected to the control unit 50, detects a rotation speed (rpm) of the roller 51b, converts a mechanical displacement amount of rotation into an electrical signal, and transmits the electrical signal to the control unit 50.

  When the impregnating mechanism 33 including the nip roller is configured such that the nip roller 34 is a part of the structure of the impregnating mechanism 33, the encoder 52 includes the impregnating mechanism 33 and the active dancer 53 in the fiber bundle supply path 11. Will be placed between. However, since the nip roller is configured to adjust the tension of the fiber bundle F, when the encoder 52 is disposed on the upstream side of the fiber bundle supply path 11, that is, the unwinding side of the nip roller, the fiber bundle is wound. There is a possibility that the change in the feeding speed of the fiber bundle F in the case of the hoop winding by the mechanism 58 can not be detected properly.

  The control unit 50 calculates the movement amount of each actuator provided on the blades 43 and 44 of the impregnating mechanism 33 based on the electric signal transmitted from the encoder 52, and the actuator is calculated based on the calculation result and the stored set value information. Control to move the With this configuration, the gap between the roller surface 41a of the resin application roller 41 and the blade 43 and the gap between the roller surface 42a of the resin application roller 42 and the blade 44 are adjusted, and the resin supply amount to the fiber bundle F is increased. It adjusts and the resin impregnation amount of the fiber bundle F is adjusted.

  For example, when the liner 21 is wound around the outer peripheral surface of the fiber bundle F by hoop winding by the fiber bundle winding mechanism 58, as shown in FIG. 5, the winding start of the fiber bundle F is constant speed (m / sec). The feeding speed of the fiber bundle F is rapidly increased until it becomes. On the other hand, from the constant speed of the fiber bundle F to the end of winding, the supply speed of the fiber bundle F drops rapidly. Such a change in the feed rate affects the resin impregnation amount of the fiber bundle F. By detecting the fluctuation of the supply speed of the fiber bundle F by the encoder 52, feedback control by the control unit 50 is performed, the fluctuation of the supply speed is absorbed, and a stable resin impregnation amount is secured.

The active dancer 53, as shown in FIG. 2, is composed of rollers 53a and 53b. The rollers 53a and 53b are rotatably supported by a support shaft (not shown). The active dancer 53 reduces the variation width of the tension (N) of the fiber bundle F by moving the roller 53a up and down in the direction of arrow a with respect to the fiber bundle F sent via the feed roller 54 and the encoder 52. The feed rate is configured to be constant. That is, in the active dancer 53, the acceleration (m / sec ² ) and the deceleration (m / sec ² ) at the feeding speed (m / sec) of the fiber bundle F are adjusted, and so-called absorption of acceleration and deceleration is performed. And the feed rate is adjusted to be constant.

  For example, when the fiber bundle winding mechanism 58 helically winds the fiber bundle F around the outer peripheral surface of the liner 21 without the active dancer 53, the fiber bundle F shown in FIG. As shown by the broken line, the feeding speed of the fiber bundle F repeats rising and falling rapidly. Such a change in the feed rate affects the resin impregnation amount of the fiber bundle F. On the other hand, when the active dancer 53 is present, as indicated by the solid line, the feeding speed is kept constant between the winding start and the winding end of the fiber bundle F. The active dancer 53 has a function to keep the feeding speed of the fiber bundle F which repeats rising and falling rapidly in this manner constant.

  The fiber bundle F whose tension adjustment is performed by the active dancer 53 and the supply speed is kept constant is configured to be sent out from the active dancer 53 toward the fiber bundle supply mechanism 57 via the feed rollers 55 and 56. There is.

  The feed roller 54 is rotatably supported by a support shaft (not shown) disposed between the nip roller 34 and the tension roller 51 in the fiber bundle supply path 11, and the feed direction of the fiber bundle F fed from the nip roller 34 is It is configured to be diverted to feed the fiber bundle F to the tension roller 51. The feed rollers 55, 56 are rotatably supported by support shafts (not shown) respectively disposed between the active dancers 53 and the fiber bundle supply mechanism 57 in the fiber bundle supply path 11, and were fed from the active dancers 53. The feed direction of the fiber bundle F is changed to feed the fiber bundle F to the fiber bundle supply mechanism 57.

  The fiber bundle supply mechanism 57 includes rollers 61, 62, 63 rotatably supported by a support shaft (not shown) and a tension meter (not shown), and collects the fiber bundles F supplied from the plurality of bobbins 31. The single fiber bundle F has a function as a so-called aite to be supplied to the fiber bundle winding mechanism 58.

  The fiber bundle supply mechanism 57 reciprocates in the Achite traverse direction indicated by the arrow b by a moving mechanism (not shown), reciprocates in the Ach back and forth direction indicated by the arrow c, and swings in the Ach swing direction indicated by the arrow d. It is configured to The movement mechanism is connected to the control unit 50, and the operation of the movement mechanism is controlled by the control unit 50.

  The tension gauge measures the tension of the fiber bundle F passing through the rollers 61, 62, 63, and sends a signal of the measurement result to the control unit 50. The control unit 50 controls the components of the fiber opening mechanism 32, the impregnation mechanism 33, the nip roller 34, the tension roller 51, the fiber bundle supply mechanism 57, and the fiber bundle winding mechanism 58 based on the sent signal.

  The fiber bundle winding mechanism 58 includes a pair of support portions 71 supporting the liner 21 at both ends in the longitudinal direction, and a rotation drive portion 72 rotating the liner 21 in the arrow e direction, that is, around the axis of the liner 21; And a moving mechanism (not shown) for reciprocating the liner 21 in the liner traverse direction indicated by the arrow f.

  The fiber bundle take-up mechanism 58 is supplied from the fiber bundle supply mechanism 57, and operates the fiber bundle supply mechanism 57 in the straight traverse direction, in the longitudinal direction and in the pivoting direction of the fiber bundle take-up mechanism 58. In cooperation with the rotation of the liner 21 and the movement in the liner traverse direction, the fiber bundle F is wound on the liner 21. That is, the fiber bundle winding mechanism 58 is configured to wind the fiber bundle F supplied from the fiber bundle supply mechanism 57 around the liner 21.

  The fiber bundle winding mechanism 58 has a moving speed (m / sec) of the fiber bundle F in each direction by the fiber bundle feeding mechanism 57, a rotational speed (rpm) and a moving speed (m of the liner 21 by the fiber bundle winding mechanism 58). The controller 50 can change the winding method of the fiber bundle F of the liner 21 to helical winding or hoop winding by controlling the control unit 50 by the control unit 50.

  As shown in FIG. 7A, helical winding is a winding method in which the winding locus of the fiber bundle F intersects the axis line CL of the liner 21 at a low angle θ of, for example, about 10 ° to 30 °. The fiber bundle F is spirally and repeatedly wound around the entire longitudinal cylindrical portion and both ends of the liner 21. In this helical winding, the fiber bundle supply mechanism 57 moves in parallel in the direction of the wire traverse, and the rotation drive unit 72 of the fiber bundle winding mechanism 58 rotates the liner 21 around its axis, whereby the fiber bundle on the liner 21 is obtained. A helical layer of F is formed.

  As shown in FIG. 7B, the hoop winding of the liner 21 is a winding method in which the winding trajectory of the fiber bundle F intersects with the axis line CL of the liner 21 at an angle close to a right angle of about 90 °, for example. Repeatedly wrap around the longitudinal cylinder. Also in this hoop winding, the fiber bundle supply mechanism 57 moves in parallel in the direction of the straight traverse, and the rotation drive unit 72 of the fiber bundle winding mechanism 58 rotates the liner 21 around its axis, whereby the fibers in the liner 21 are obtained. A hoop layer of bundle F is formed.

  Next, the operation of the FW device 10 according to the present embodiment will be briefly described with reference to the drawings.

  First, as shown in FIG. 2, the liner 21 constituting the tank 20 manufactured by the FW device 10 according to the present embodiment is set to the fiber bundle winding mechanism 58, and the bobbin 31 is set to the creel stand not shown. Thus, the fiber bundle F is unwound from the bobbin 31. The unwound fiber bundle F is set to the fiber opening mechanism 32 through the feed rollers 35 and 36, is set to the impregnating mechanism 33 through the feed rollers 37 and 38, and is set to the nip roller 34. Next, the fiber bundle F is set to the tension roller 51, the encoder 52, and the active dancer 53 via the feed roller 54, and is set to the fiber bundle supply mechanism 57 via the feed rollers 55 and 56.

  When the setting of the fiber bundle F in the FW device 10 is completed, the control of the control unit 50 starts unwinding of the fiber bundle F from the bobbin 31 and the fiber bundle F is opened by the opening mechanism 32. The fiber bundle F is impregnated with resin by the impregnating mechanism 33, and the tension of the fiber bundle F is adjusted by passing through the nip roller 34. When passing through the nip roller 34, the resin impregnated in the fiber bundle F is efficiently cooled by the cooling chiller.

  The fiber bundle F is supplied from the fiber bundle supply mechanism 57 to the fiber bundle take-up mechanism 58, passes through the tension roller 51, the tension is adjusted, and the encoder 52 provided on the roller 51b of the tension roller 51 The supply speed of the bundle F is detected, and the detection information is transmitted to the control unit 50. Then, the winding of the fiber bundle F around the liner 21 is started by the fiber bundle winding mechanism 58. That is, winding of the fiber bundle F by the liner 21 starts. At the same time as the start of winding of the fiber bundle F by the liner 21, detection of the tension of the fiber bundle F by the tension meter of the fiber bundle supply mechanism 57 is started, and detection information is transmitted to the control unit 50.

  While the FW device 10 is in operation, the control unit 50 executes the stored control program, and based on the detection information and setting value information received from the tension gauge and the encoder 52 of the fiber bundle supply mechanism 57, the FW device Ten components are controlled. Then, when the winding of the fiber bundle F by the liner 21 is completed, the next liner 21 is set to the fiber bundle winding mechanism 58. The winding of the fiber bundle F by the liner 21 is completed, and the liner 21 having the reinforcing layer 22 formed of the fiber bundle F formed on the outer peripheral surface is sent to the next step, and the resin curing process is performed. Is completed.

  The effects of the FW device 10 according to the embodiment configured as described above will be described.

  In the FW device 10 according to the present embodiment, since the impregnating mechanism 33 is disposed at a position between the bobbin 31 and the active dancer 53 of the fiber bundle supply path 11, the fiber bundle winding mechanism 58 The change in velocity of the fiber bundle F occurring during winding can be absorbed by the active dancer 53, and the effect of the change in velocity of the fiber bundle F on the impregnation mechanism 33 is suppressed. In particular, even if the feeding speed of the fiber bundle F changes rapidly due to the helical winding by the fiber bundle take-up mechanism 58, the effect of securing a stable resin impregnation amount to the fiber bundle in the impregnating mechanism 33 is obtained. Be

  Further, in the FW device 10 according to the present embodiment, the encoder 52 is disposed in the fiber bundle supply path 11 between the active dancer 53 and the impregnation mechanism 33, and between the impregnation mechanism 33 and the active dancer 53 by the encoder 52. The feed rate of the fiber bundle F is detected. With this configuration, even if the feeding speed of the fiber bundle F changes rapidly due to a rapid speed change at the beginning or end of hoop winding by the fiber bundle winding mechanism 58, the fiber bundle F in the impregnating mechanism 33 is stabilized The effect of securing the resin impregnation amount is obtained.

  That is, based on the supply speed detected by the encoder 52 by the control unit 50, the blades 43 and 44 of the impregnating mechanism 33 move respectively, and the gaps between the blades 43 and 44 and the resin application rollers 41 and 42 become It is adjusted and controlled so that the resin supply amount becomes an appropriate value. As a result, in the impregnation mechanism 33, an appropriate amount of resin impregnation of the fiber bundle F can be obtained.

  Further, in the FW device 10 according to the present embodiment, when the fiber bundle F passes through the nip roller 34, the cooling chiller is controlled by the control unit 50 based on the detection information of the temperature sensor. The temperature of the fiber bundle F impregnated with the resin is adjusted to maintain the viscosity of the resin at an appropriate value. As a result, when the fiber bundle F is wound around the liner 21, the problem that the resin impregnated by the tension of the fiber bundle F is squeezed out and scattered is eliminated, and the quality such as the mechanical strength of the tank 20 is reduced. The effect is that the stable quality can be secured.

  Moreover, when the viscosity of the resin is maintained at an appropriate value, the resin adheres to each roller constituting the FW device 10, and the problem that the fiber bundle F is broken is also solved. Furthermore, adhesion of the resin to the roller is suppressed, and the problem of requiring time for maintenance such as cleaning of the FW device 10 is also solved.

  As mentioned above, although the embodiment of the present invention was explained in full detail, the present invention is not limited to the above-mentioned embodiment, and various designs are possible in the range which does not deviate from the spirit of the present invention described in the claim. It is possible to make changes.

DESCRIPTION OF SYMBOLS 10 ... FW apparatus (filament winding apparatus), 11 ... Fiber bundle supply path (fiber supply path), 20 ... Tank, 21 ... Liner (tank), 22 ... Reinforcing layer, 23, 24 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 24 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Opening mechanism, 33 · · impregnation mechanism (resin impregnation Sections) 32a: spreader rollers 34: nip rollers 35, 36, 37, 38, 54, 55, 56: feed rollers 40: fiber winding portion 41, 42. · Resin application roller, 41a, 42a · · · roller surface, 43, 44 · · · blade, 45, 46 · · · resin storage portion, 50 · · · control portion, 51 · · · tension roller, 51a, 51b, 53a, 53b, 61, 62, 63 ... roller, 1c: Stay, 51d: Cylinder, 52: Encoder, 53: Active dancer, 57: Fiber bundle supply mechanism, 58: Fiber bundle winding mechanism, 71: Support portion 72: Rotational drive unit, F: Fiber bundle (fiber)

Claims (1)

A filament winding apparatus for unwinding a fiber from a bobbin and winding it around a tank,
An active dancer disposed in a fiber feeding path between the bobbin and the tank;
A resin impregnation unit disposed between the bobbin of the fiber supply path and the active dancer and impregnating the fiber with the resin;
An encoder disposed between the resin-impregnated portion of the fiber supply path and the active dancer and detecting a supply speed of the fiber;
A control unit that controls the resin supply amount of the resin impregnation unit based on the fiber supply speed detected by the encoder;
A filament winding apparatus comprising:

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