JP6240841B2 - Composite container manufacturing system and composite container manufacturing method - Google Patents

Description

  The present invention relates to a composite container manufacturing system and a composite container manufacturing method.

  Conventionally, as described in Patent Document 1, for example, a manufacturing method for manufacturing a composite container provided with a reinforcing layer is known. In such a manufacturing method, a fiber bundle impregnated with a thermosetting resin is wound around a liner to form a container intermediate, and the container intermediate is heated in a heating furnace to cure the thermosetting resin of the fiber bundle ( Gelled).

JP 2008-286297 A

  By the way, in the prior art as described above, when a flat fiber bundle is usually wound around a liner, it becomes elliptical or twisted, so that the fiber bundle in the reinforcing layer is between the fiber bundle. In some cases, voids are easily generated, and the strength of the composite container is lowered. Therefore, a technique is known in which the fiber bundle is easily spread on the liner or on the already wound fiber bundle by heating the liner from the inside or the outside, and the void in the reinforcing layer is reduced to suppress the strength reduction of the composite container. It has been.

  However, even with such a technique, it was not possible to sufficiently suppress a decrease in strength of the composite container.

  This invention is made | formed in order to solve such a subject, and makes it a subject to provide the manufacturing method of the composite container which can improve the intensity | strength of a composite container, and the manufacturing method of a composite container.

  In order to solve the above problems, a composite container manufacturing system according to the present invention is a manufacturing system for manufacturing a composite container including a reinforcing layer, and a heating unit that preheats a fiber bundle impregnated with a resin; A winding portion for winding the heated fiber bundle around the outer periphery of the liner, and the heating portion heats the fiber bundle upstream from the winding position.

  Further, the method for manufacturing a composite container according to the present invention is a manufacturing method for manufacturing a composite container having a reinforcing layer, and a heating step of preheating a fiber bundle impregnated with a resin, and heating A winding step of winding the fiber bundle around the outer periphery of the liner, and in the heating step, the fiber bundle is heated upstream from the winding position.

  In these inventions, since the fiber bundle heated upstream from the winding position is wound around the outer periphery of the liner, the viscosity of the resin impregnated in the fiber bundle decreases, and the fiber bundle is wound on the liner or already wound. It becomes easy to spread on the fiber bundle. Thereby, the space | gap in a reinforcement layer can be reduced and the intensity | strength of a composite container can be improved.

  Moreover, you may further provide the temperature sensor which detects the temperature of the heated fiber bundle, and the controller which controls the heating by a heating part based on the temperature detected by the temperature sensor. This controls the viscosity of the resin impregnated in the fiber bundle, making it easier for the fiber bundle to spread on the liner or on the already wound fiber bundle.

  Further, the fiber bundle impregnated with the resin may be a tow prepreg. As a result, the configuration can be simplified as compared with a method in which the fiber bundle is impregnated with resin and wound around the liner (so-called Wet method).

  The heating unit may heat the fiber bundle with warm air. Thereby, since a fiber bundle can be heated non-contactingly, the running state of a fiber bundle can be stabilized.

  Further, the fiber bundle may be heated by an infrared heater. Thereby, since a fiber bundle can be heated non-contactingly, the running state of a fiber bundle can be stabilized.

  According to the present invention, the strength of the composite container can be improved.

It is a partial sectional view showing the composite container manufactured by the composite container manufacturing system according to the first embodiment. It is a schematic block diagram which shows the manufacturing system of the composite container which concerns on 1st Embodiment. It is a side view of a delivery provided with a heating part and a temperature sensor. It is a partial cross section figure of the delivery provided with the heating part shown in FIG. It is a partial cross section figure of the delivery provided with the heating part which concerns on a modification. It is a schematic block diagram which shows the manufacturing system of the composite container which concerns on 2nd Embodiment. It is a graph which shows the result of a tow prepreg heating experiment. It is a graph which shows the result of a burst test.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.
[First Embodiment]

  FIG. 1 is a partial cross-sectional view showing a composite container manufactured by the composite container manufacturing system and method according to the present embodiment. As shown in FIG. 1, the composite container 1 is a container for storing fuel gas such as hydrogen or natural gas at a high pressure. For example, the composite container 1 has a total length of 2 to 4 m and a diameter of about 400 to 600 mm, and can withstand a pressure of about 20 to 90 MPa when used. The use of the composite container 1 is not limited and can be used for various purposes. In addition, the composite container 1 may be used as a stationary type or may be used by being mounted on a moving body.

  The composite container 1 includes a cylindrical liner 2 and a reinforcing layer (fiber reinforced plastic layer) 3 provided so as to cover the outer peripheral side of the liner 2. Both ends 2a of the liner 2 are formed in a dome shape, and a base 4 is attached to the tip of the both ends 2a so as to protrude in the axial direction. Here, the mounting height (projection height) of the base 4 is equal to the thickness of the reinforcing layer 3, but it may be more than that, or even if the base 4 protrudes from the reinforcing layer 3. Good.

  The material of the liner 2 is not particularly limited, but resin or metal is selected depending on the application. Examples of the resin liner 2 include a resin obtained by shaping a thermoplastic resin such as high-density polyethylene into a container shape by rotational molding or blow molding and a metal base 4. As the metal liner 2, for example, a pipe shape or plate shape made of an aluminum alloy, steel, or the like is formed into a container shape by pressing or the like, and the shape of the base 4 is formed.

  The reinforcing layer 3 is formed by winding a fiber bundle 10 impregnated with a thermosetting resin (resin) around the outer periphery of the liner 2 and heating and curing the fiber bundle 10 in a heating furnace. Types of thermosetting resins include phenolic resin, urea resin, unsaturated polyester resin, vinyl ester resin, polyimide resin, bismaleimide resin, polyimide resin, polyurethane resin, diallyl phthalate resin, epoxy resin, melamine resin or allyl resin However, it is not limited to these. The reinforcing layer 3 is a so-called thick roll, and normally has a thickness of about 2 cm, whereas in the present embodiment, the thickness is about 5 to 6 cm.

  Further, as the fiber bundle 10, for example, carbon fiber, glass fiber, aramid fiber, boron fiber, polyethylene fiber, steel fiber, Zylon fiber, or vinylon fiber can be used. Lightweight carbon fiber is used. Further, the number of fibers (filaments) of the fiber bundle 10 of the present embodiment is not particularly limited, but is in the range of 1000 to 50000 filaments, preferably 3000 to 30000 filaments, and here it is 24000 filaments.

  When manufacturing the composite container 1 configured as described above, first, the fiber bundle 10 preliminarily impregnated with the thermosetting resin is preheated before being wound around the outer peripheral side of the liner 2 (heating step). Subsequently, the heated fiber bundle 10 is wound around the outer peripheral side of the liner 2 to form a plurality of fiber bundle layers (fiber reinforced plastic layers) on the outer peripheral side of the liner 2, thereby obtaining a container intermediate ( Winding process).

  In addition, the container intermediate is intended for the composite container 1 in the manufacturing process, and here, is intended for the state before the thermosetting resin of the fiber bundle 10 is thermoset (hereinafter the same). . Further, the winding method in the winding step is not particularly limited, but for example, an FW (filament winding) method can be adopted. Examples of the FW method include a method (so-called Dry method) in which a fiber bundle (tow prepreg) 10 impregnated with a thermosetting resin in advance is prepared and wound around the liner 2.

  And after winding the fiber bundle 10, the thermosetting resin of the fiber bundle 10 is hardened by heating a container intermediate body with a heating furnace, and, thereby, the composite container 1 provided with the reinforcement layer 3 is obtained. Alternatively, the thermosetting resin may be cured while performing the winding step.

  As shown in FIG. 2, the composite container 1 manufacturing system 100A according to the present embodiment manufactures the composite container 1, and is used in the heating step and the winding step. The manufacturing system 100A includes a heating unit 20A, a winding unit 30, a temperature sensor 40, and a controller 50.

  The winding unit 30 includes a plurality of bobbins 31 wound with a fiber bundle 10 pre-impregnated with a thermosetting resin, and a winding bundle passage position adjusting unit 32 that adjusts a passage position of the plurality of fiber bundles 10 to be wound. The delivery 33 for feeding the fiber bundle 10 to the winding position on the outer peripheral side of the liner 2, the rotating shaft 34 provided so as to pass through the inside of the liner 2, and the fiber bundle by rotating the rotating shaft 34 And a rotating mechanism (not shown) that winds 10 by the liner 2. The delivery 33 is a yarn feeder provided at the tip of the moving unit (not shown) on the liner 2 side that moves a plurality of wound fiber bundles 10 along the axial direction of the liner 2.

  In the winding unit 30, the fiber bundle 10 is supplied from the bobbin 31, and the fiber bundle 10 is adjusted by the winding bundle passing position adjusting unit 32 while the passing position at the time of winding is adjusted. It is wound around the outer surface side of the liner 2 by the cooperation of the rotation mechanism, whereby a fiber bundle layer is formed so as to cover the liner 2.

  The heating unit 20A preheats the fiber bundle 10 upstream from the winding position. That is, the position where the heating unit 20A is provided may be anywhere downstream from the bobbin 31 and upstream from the winding position, but the temperature of the fiber bundle 10 at the time of reaching the winding position is kept high. In order to do this, it is preferable to be as close as possible to the winding position. Here, upstream and downstream are upstream and downstream in the flow of the fiber bundle 10. The winding position is a position on the outer peripheral side of the liner 2 around which the fiber bundle 10 is wound, and the fiber bundle 10 sent from the bobbin 31 is the first on the liner 2 or the already wound fiber bundle 10. This is the contact position. With this winding position as a boundary, the fiber bundle 10 changes from a single state to a part of a fiber bundle layer in which the fiber bundles 10 are laminated.

  Considering that it is difficult to secure a sufficient installation space between the winding position and the delivery 33, the heating unit 20A is provided at a position between the delivery 33 and the winding bundle passage position adjusting unit 32. It is preferable that it is provided at a position adjacent to the delivery 33. In the present embodiment, the heating unit 20 will be described as being provided on the upstream side of the delivery 33 and at a position adjacent to the delivery 33.

  The heating unit 20 performs heating by transmitting heat to the fiber bundle 10 in a non-contact manner, and transfers heat to the fiber bundle 10 indirectly by passing a gas or by heat radiation. In the present embodiment, the heating unit 20A will be described as heating the fiber bundle 10 by blowing warm air. The warm air is, for example, heated air. The heating unit 20A is connected to the controller 50, whereby the temperature and flow rate of the warm air are adjusted, and the heating by the heating unit 20A is controlled by the controller 50.

  The temperature sensor 40 is an installation-type non-contact thermometer that detects the temperature of the fiber bundle 10 heated by the heating unit 20A, and is attached to the delivery 33 in this embodiment. The temperature sensor 40 here is, for example, a thermography or a radiation thermometer. The position where the temperature sensor 40 is provided is on the downstream side of the heating unit 20A and is preferably adjacent to the heating unit 20A in order to grasp the heating state of the fiber bundle 10. The temperature sensor 40 is connected to the controller 50, and outputs the detected temperature of the fiber bundle 10 to the controller 50.

  The controller 50 is for controlling the heating of the heating unit 20A based on the temperature detected by the temperature sensor 40, and includes a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access). Memory) and the like. The controller 50 controls the operation of the heating unit 20A based on the output from the temperature sensor 40 so that the temperature of the fiber bundle 10 becomes the target temperature.

  Specifically, for example, when the temperature of the fiber bundle 10 output from the temperature sensor 40 is lower than the target temperature, the controller 50 performs control such as increasing the temperature of the heated air or increasing the flow rate. When the temperature of the fiber bundle 10 output from the sensor 40 is higher than the target temperature, control is performed such that the temperature of the heated air is reduced or the flow rate is reduced. Here, the target temperature is a temperature of 35 ° C. to 130 ° C. For example, as the target temperature, the temperature at which the fiber bundle 10 reaches the winding position and the viscosity of the resin can be maintained at 5 Pa · s or less which is equal to the resin viscosity in the Wet method at the time when the fiber bundle 10 is laminated on the liner 2. May be set. The target temperature needs to be adjusted according to the position where the temperature sensor 40 is provided, the conditions of the winding process, and the like.

  With reference to FIG.3 and FIG.4, it demonstrates in full detail about the heating part 20A of this embodiment. The heating unit 20A is disposed along the traveling fiber bundle 10. On the downstream side of the heating unit 20 </ b> A, a delivery 33 is disposed adjacent to the heating unit 20 </ b> A, and a temperature sensor 40 is attached on the delivery 33.

  The heating unit 20 </ b> A is provided with a cover unit 21 that surrounds the fiber bundle 10, a flange unit 22 that is provided at the downstream end of the cover unit 21 and to which a delivery is fixed, and a temperature that supplies warm air to the fiber bundle 10. And a wind supply unit 23.

  The cover portion 21 surrounds the traveling fiber bundle 10 for a predetermined length along the traveling direction. The flange portion 22 has a through hole that allows the fiber bundle 10 to pass therethrough. The delivery 33 is fixed to the downstream end portion of the cover portion 21 by the flange portion 22, communicates with the through hole of the flange portion 22, and supplies the fiber bundle 10 from the tip to the liner 2. The temperature sensor 40 is fixed to the delivery 33 with a jig 35 and detects the temperature of the fiber bundle 10 supplied from the tip of the delivery 33 to the liner 2.

  The hot air supply unit 23 includes a channel 24 for taking in hot air from the outside of the cover unit 21, a joint 25 provided at one end of the channel 24, and the other end of the channel 24. And a nozzle 26 provided on the head. The flow path 24 penetrates the flange portion 22 and communicates the outside and the inside of the cover portion 21. The joint 25 is provided so as to protrude from the outer surface of the flange portion 22 which is one end portion of the flow path 24, that is, the outer end portion of the cover portion 21, and an external hot air supply source (not shown). Connected to. The nozzle 26 is connected to the other end of the flow path 24, that is, the end on the inner side of the cover section 21 so as to be able to communicate with the flow path 24, and the hot air supplied via the flow path 24 is covered with the cover The fiber bundle 10 is sprayed inside 21.

  The nozzle 26 is a tubular member having a predetermined length with the tip 26a closed, and the entire nozzle 26 is disposed in the cover portion 21. The nozzle 26 is disposed so as to extend substantially parallel to the traveling direction of the fiber bundle 10 at a position separated from the fiber bundle 10. The nozzle 26 is separated from the fiber bundle 10 by a predetermined distance in a direction orthogonal to the traveling direction (in this embodiment, upward direction of the fiber bundle 10). The nozzle 26 has a plurality of apertures 26b at regular intervals along the longitudinal direction, and these apertures 26b are arranged in a direction facing the fiber bundle 10 that travels. The nozzle 26 blows warm air supplied through the flow path 24 onto the fiber bundle 10 to heat the fiber bundle 10. At this time, since the warm air is confined in the cover portion 21, the fiber bundle 10 can be efficiently heated.

  As described above, according to the manufacturing system 100A and the manufacturing method of the composite container 1 of the present embodiment, the warm air is blown to the fiber bundle 10 by the heating unit 20A on the upstream side from the winding position on the outer peripheral side of the liner 2, and the fiber bundle. 10 is warmed. For this reason, the viscosity of the thermosetting resin previously impregnated in the fiber bundle 10 is lowered, and the fiber bundle 10 is likely to spread on the liner 2 or the already wound fiber bundle 10. Therefore, when the fiber bundle 10 is wound around the liner 2, the formation of an air gap between the fiber bundle 10 and the fiber bundle 10 in the reinforcing layer 3 due to being elliptical or twisted is suppressed. Can do. As a result, the strength of the reinforcing layer 3 can be improved and the strength of the composite container 1 can be improved.

  Further, since a tow prepreg is used as the fiber bundle 10, there is no need to provide a resin bath separately as in the Wet method, and it is not necessary to impregnate the fiber bundle 10 with the thermosetting resin by the resin bath, and the manufacturing system 100A and the manufacturing method of the composite container 1 are provided. Can be simple.

  Further, the temperature of the heated fiber bundle 10 is detected by the temperature sensor 40, and the temperature or flow rate of the warm air by the heating unit 20A is adjusted by the temperature, so that, for example, the fiber bundle 10 is like a helical winding. Even when the traveling speed (FW speed) changes, the temperature of the fiber bundle 10 can be kept constant.

  Moreover, since the heating unit 20A warms the fiber bundle 10 by blowing warm air, the heating unit 20A itself is not in contact with the fiber bundle 10 and stabilizes the traveling state of the fiber bundle 10. In addition, the fiber bundle 10 can be prevented from being damaged. Even when the viscosity of the thermosetting resin impregnated in the fiber bundle 10 is lowered by heating, there is no possibility that the thermosetting resin adheres to the heating portion 20A.

  In addition, since the heating unit 20A is provided in the delivery 33 as close as possible to the winding position of the fiber bundle 10, the temperature of the fiber bundle 10 at the time of reaching the winding position can be easily maintained high. Thereby, the fiber bundle 10 is easily spread on the liner 2 or the already wound fiber bundle 10, and the strength of the composite container 1 can be improved. In addition, if installation is possible, you may install in the delivery 33, and you may install between the delivery 33 and the winding position.

  In the above-described embodiment, the heating unit 20A is provided with one nozzle 26, but is not limited thereto, and may be two or more.

  As shown in FIG. 5, the heating unit 20 </ b> A according to the modification includes two nozzles 26. These two nozzles 26 are arranged in the cover portion 21 so as to face each other so as to sandwich the traveling fiber bundle 10, and each blows warm air onto the fiber bundle 10. The two joints 25 are each connected to the same external hot air supply source (not shown). According to this, since the flat fiber bundle 10 is heated from both surfaces, the temperature of the fiber bundle 10 can be made uniform. The two joints 25 may be connected to different external hot air supply sources. According to this, the temperature and flow rate of the hot air blown from the nozzles 26 to the fiber bundle 10 are made different. be able to.

  In the present embodiment, the heating unit 20A is provided at one location of the delivery 33, but the present invention is not limited to this, and any location as long as it is upstream from the winding position of the fiber bundle 10 on the outer peripheral side of the liner 2. You may arrange | position and may provide in multiple places.

  In addition to heating the fiber bundle 10 by the heating unit 20A, the liner 2 may be heated from the inside or the outside. As a result, the fiber bundle 10 is more likely to spread on the liner 2 or the already wound fiber bundle 10, so that the strength of the composite container 1 can be further improved.

Moreover, it is good also as heating the fiber bundle 10 previously impregnated with the thermosetting resin by the Wet method. In the Wet method, the fiber bundle 10 is heated by the resin bath. However, by further heating, the temperature can be easily maintained until the winding position is reached. In this case, the position where the heating unit 20A is provided may be anywhere downstream from the resin bath and upstream from the winding position, but is preferably as close as possible to the winding position.
[Second Embodiment]

  Next, a second embodiment will be described. In the description of the present embodiment, differences from the first embodiment will be mainly described. The manufacturing method of the composite container 1 and the manufacturing system 100B according to the present embodiment differ from the first embodiment in the configuration of the heating unit 20B. Hereinafter, this embodiment will be described in detail with reference to FIG.

  As shown in FIG. 6, in the manufacturing system 100 </ b> B of the composite container 1, the heating unit 20 </ b> B performs heating by transmitting heat to the fiber bundle 10 in a non-contact manner, and indirectly the fiber bundle 10 by heat radiation. It conveys heat to. In the present embodiment, the heating unit 20B will be described as including the infrared heaters 27 and 28 and heating the fiber bundle 10 with these heat radiations. The infrared heaters 27 and 28 are disposed at positions where the fiber bundle 10 traveling on the wound bundle passage position adjusting unit 32 and the delivery 33 can be heated. The infrared heaters 27 and 28 are arranged in non-contact with the fiber bundle 10, and the distance from the fiber bundle 10 is, for example, several centimeters. The infrared heaters 27 and 28 are respectively connected to the controller 50, whereby the heating by the infrared heaters 27 and 28 is controlled by the controller 50. The infrared heaters 27 and 28 may be arranged on the upper and lower sides or the left and right sides of the fiber bundle 10.

  The infrared heaters 27 and 28 are, for example, short wavelength heaters. According to this, the carbon fibers can be heated through the resin, so that the carbon fibers can be efficiently heated. The infrared heaters 27 and 28 are not limited to this, and may be, for example, a convection method that heats the fiber bundle 10 from the outside. Further, the infrared heaters 27 and 28 may be in a module form in which a number of infrared heaters are combined, for example.

  In the present embodiment, the infrared heaters 27 and 28 are arranged at positions where the fiber bundle 10 traveling on the wound bundle passage position adjusting unit 32 and the delivery 33 can be heated, but the present invention is not limited thereto. Instead, it may be arranged at a position where the fiber bundle 10 can be heated on the upstream side of the winding position of the fiber bundle 10 in the liner 2. In the present embodiment, two infrared heaters 27 and 28 are installed. However, any number of infrared heaters 27 and 28 may be installed as long as the number is one or more, and depending on the traveling speed (FW speed) of the fiber bundle 10. You may install it.

  According to this embodiment, since the fiber bundle 10 is heated by the infrared heaters 27 and 28 in a non-contact manner, the fiber bundle 10 is hardly damaged. In particular, since the fiber bundle 10 is in the traveling state, heating the contactless manner not only prevents the fiber bundle 10 from being damaged but also stabilizes the traveling state. Further, according to the infrared heaters 27 and 28, the temperature of the fiber bundle 10 can be easily raised without using the cover portion 21 (see FIG. 4), but the cover portion 21 is used and the infrared heater is provided inside the cover portion 21. 27 and 28 may be provided. According to this, the fiber bundle 10 can be heated more efficiently.

Examples will be described below. However, the present invention is not limited to these examples.
[Toe prepreg warming experiment]

Using the manufacturing system and manufacturing method corresponding to the composite container manufacturing system 1A and the manufacturing method according to the first embodiment, heated tow prepreg (TPP) is heated by blowing heated air under the following conditions, and the tow prepreg is heated. The warming experiment was conducted.
Heated air flow rate: 400L / min
Heated air temperature: 100 ° C, 130 ° C
Tow prepreg traveling speed (TPP speed): 80 mm / s, 160 mm / s, 320 mm / s, 360 mm / s, 420 mm / s, 520 mm / s

  As shown in FIG. 7, the temperature of the tow prepreg (TPP temperature) is highest when the running speed of the tow prepreg is 160 mm / s, regardless of whether the heating air temperature is 100 ° C. or 130 ° C. became. The traveling speed of the tow prepreg was calculated from the diameter of the liner and the rotational speed of the liner.

The temperature of the tow prepreg changes according to the traveling speed because the amount of heat transfer per unit length from the heating unit and the time taken from the heating unit to the temperature sensor change. This is probably because of this. As described above, the temperature of the tow prepreg varies depending on the traveling speed of the tow prepreg, the heating air temperature, the heating air flow rate, and the like. Therefore, it is necessary to appropriately adjust these to set the desired temperature.
[Burst experiment]
(Example)

As an example, the heating system heats the tow prepreg under the following conditions using the manufacturing system and manufacturing method corresponding to the manufacturing system 1A and the manufacturing method of the composite container according to the first embodiment, and the heating is performed. The tow prepreg was wound around an aluminum alloy liner having an inner volume of 7.5 L, and a CFRP (fiber reinforced plastic) layer was laminated. The ambient temperature was room temperature.
Heated air flow rate: 400L / min
Heated air temperature: 130 ° C
Tow prepreg temperature: 120 ° C

  As the tow prepreg resin, 25LV-4 was used, the winding pitch was 3 mm, and a helical structure with a shallow angle that greatly affects the axial strength so that fracture occurred in the circumferential direction was used as the layer structure.

Subsequently, the CFRP layer was cured by heating in the following procedure in a heating furnace, and a tank-shaped CFRP container was prepared.
1.1 hours heating to 130 ° C 2.2 hours 30 minutes maintaining 130 ° C 3.1 hours cooling to room temperature

When the burst test by the water pressure was done with respect to the CFRP container of the Example created as described above, the burst pressure was 60.7 MPa. The result is shown in FIG.
(Comparative example)

  As a comparative example, a CFRP container was prepared in the same manner as in the example except that heating was not performed, and a burst test with a hydraulic pressure was performed on the prepared CFRP container. As a result, the burst pressure was 59 MPa. The result is shown in FIG.

  Thus, it was confirmed that the strength of the CFRP container was improved by heating the tow prepreg.

  DESCRIPTION OF SYMBOLS 1 ... Composite container, 2 ... Liner, 3 ... Reinforcement layer, 10 ... Fiber bundle, 20A, 20B ... Heating part, 27, 28 ... Infrared heater, 30 ... Winding part, 40 ... Temperature sensor, 50 ... Controller, 100A , 100B ... Manufacturing system of composite container.

Claims (7)

A manufacturing system for manufacturing a composite container having a reinforcing layer,
A heating unit for preheating the fiber bundle impregnated with the resin;
A winding part for winding the heated fiber bundle around the outer periphery of the liner,
The heating unit has a nozzle that heats the fiber bundle with warm air upstream from the winding position ;
The nozzle is disposed along the traveling direction of the fiber bundle,
The composite container manufacturing system , wherein the nozzle is provided with a plurality of apertures facing the fiber bundle along the traveling direction .   The temperature sensor which detects the temperature of the warmed fiber bundle, and the controller which controls the heating by the heating part based on the temperature detected by the temperature sensor. Composite container manufacturing system.   The fiber bundle manufacturing system according to claim 1 or 2, wherein the fiber bundle impregnated with the resin is a tow prepreg. The said heating part is a manufacturing system of the composite container as described in any one of Claims 1-3 which has a pair of nozzle arrange | positioned facing so that the said fiber bundle may be pinched | interposed. 5. The composite container manufacturing system according to claim 1, wherein a direction in which warm air flows through the nozzle and a traveling direction of the fiber bundle are opposite to each other. The said heating part is a manufacturing system of the composite container as described in any one of Claims 1-5 provided in the multiple places upstream from the said winding position. A manufacturing method for manufacturing a composite container having a reinforcing layer,
A heating step of preheating the fiber bundle impregnated with the resin;
A winding step of winding the heated fiber bundle around the outer periphery of the liner,
In the heating step, the fiber bundle is heated by warm air from a nozzle disposed along the traveling direction of the fiber bundle on the upstream side from the winding position,
The method for manufacturing a composite container, wherein the nozzle is provided with a plurality of apertures facing the fiber bundle along the traveling direction .

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