JP2014188838A - Guide device for thermosetting resin impregnated carbon fiber bundle, winding device for thermosetting resin impregnated carbon fiber bundle, method for manufacturing thermosetting resin impregnated carbon fiber bundle wound product, and device and method for manufacturing thermosetting resin impregnated carbon fiber bundle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the occurrence of fluff when a thermosetting resin impregnated carbon fiber bundle (tow prepreg) T is guided in contact with a guide body, such as a guide section 3, in the manufacture of a thermosetting resin impregnated carbon fiber bundle wound product or a thermosetting resin impregnated carbon fiber bundle.SOLUTION: The surface of a guide body is subjected to coating with a surface roughness Ra of 0.75-4.0 μm and a peak count PC of 10-100.

Description

  The present invention relates to a guide device that guides a carbon fiber bundle impregnated with a thermosetting resin by bringing it into contact with a guide body. The present invention also provides a thermosetting resin-impregnated carbon fiber bundle winding device and a thermosetting resin-impregnated carbon fiber bundle winding product for winding a thermosetting resin-impregnated carbon fiber bundle using the guide device. It relates to a manufacturing method. The present invention further relates to a production apparatus and production method for a resin-impregnated carbon fiber bundle (toe prepreg) using this guide device.

For example, a method called a filament winding (FW) method is used as a method of manufacturing a product such as a pressure vessel that requires mechanical properties such as pressure resistance and light weight. In the FW method, carbon fibers, glass fibers, aramid fibers, and other reinforcing fibers are aligned on a core member such as a liner or a core member called a mandrel that is used during molding to form a hollow shape. A thermosetting resin-impregnated fiber bundle obtained by impregnating a fiber bundle constituted by a thermosetting resin is wound, and then the thermosetting resin is cured to obtain a product.
In the FW method, the fiber bundle not impregnated with the thermosetting resin and the thermosetting resin are separately procured, and the fiber bundle is impregnated with the thermosetting resin in the process of performing the FW method. A method of forming a thermosetting resin-impregnated fiber bundle and subsequently winding it (wet method), or a thermosetting resin in which a fiber bundle is pre-impregnated with a thermosetting resin called a tow prepreg (TPP) A method of procuring an impregnated fiber bundle and winding it as it is (TPP method) is used as a typical method (see Patent Document 1).

  In the FW method, a path of the thermosetting resin-impregnated fiber bundle is set, and the fiber bundle is guided in contact with a rotatable or fixed guide body on the path. Further, in the step of manufacturing the TPP used in the TPP method, that is, the step of manufacturing the TPP by impregnating the fiber bundle with the thermosetting resin, the guide body is similarly provided in the path of the thermosetting resin-impregnated fiber bundle. Guidance using is performed.

  In Patent Document 2, a carbon fiber yarn is impregnated with a resin by a specific method, and the yarn is wound under a specific condition (Claim 1), and in addition, a yarn in contact with carbon fiber and / or tow prepreg The strip position regulation guide and the fiber bundle forming guide are made of chrome plated surface treated with 3S-20S, and the guide has a specific positional relationship (Claim 4). A method for producing a tow prepreg having features such as less inversion and width variation and less fluffing of carbon fibers is disclosed.

JP 2011-206933 A JP 2012-184279 A

  However, when the thermosetting resin-impregnated fiber bundle is guided in contact with a rotatable or fixed guide in the process of forming the product by winding the thermosetting resin-impregnated fiber bundle, or in the manufacturing process of TPP. In particular, when carbon fibers are used as the fibers, a part of the surface of the thermosetting resin-impregnated fiber bundle is scraped off by friction with the guide body, so that “fluff” may occur. And, when the fluff is wound around the guide body, there may be a problem such as a line stop in the manufacturing process of the fiber bundle wound product or the manufacturing process of the TPP. In addition, the fluff is a kind of foreign matter even if it is made of a part of the long fibers constituting the thermosetting resin impregnated fiber bundle and the thermosetting resin. In the case where it is mixed with the TPP to be manufactured, there is a possibility that the TPP as a product may be defective. Therefore, it is desired to suppress the generation of fluff as much as possible.

  In the present application, “fluff” refers to an article that is generated in the manner described above and includes a part of reinforcing fibers and a thermosetting resin, typically in the form of lint.

  The present invention is to contact a thermosetting resin resin-impregnated carbon fiber bundle with a guide body in a process of manufacturing a carbon fiber bundle wound product using a thermosetting resin resin-impregnated carbon fiber bundle or a manufacturing process of TPP. The purpose is to suppress the generation of fluff when guiding it, to reduce defects in the production process of the carbon fiber bundle wound product or TPP caused by the generation of fluff, and to improve the quality of each product In addition, the present inventors have obtained a knowledge that the use of a member coated with a specific surface state as the guide body can greatly reduce the occurrence of fluff, and this has been made based on this finding.

  In order to solve the above-mentioned problems, a thermosetting resin-impregnated fiber bundle guiding device according to the present invention is a device that guides a carbon fiber bundle impregnated with a thermosetting resin by contacting the guide body, The surface of the guide body that contacts the fiber bundle is coated with a surface roughness Ra of 0.75 to 4.0 μm and a peak count PC of 10 to 100.

  In the present invention, a supply unit for supplying a carbon fiber bundle impregnated with a thermosetting resin and a carbon fiber bundle impregnated with the supplied thermosetting resin are formed to form a core member or a hollow shape. A winding portion that winds around a core member, and a guide portion that includes the guide device that guides a carbon fiber bundle impregnated with a thermosetting resin between the supply portion and the winding portion. Provided is a thermosetting resin-impregnated carbon fiber bundle winding device.

  Further, in the present invention, a supply step of supplying a carbon fiber bundle impregnated with a thermosetting resin, and a carbon fiber bundle impregnated with the supplied thermosetting resin to form a core member or a hollow shape. A winding step of winding on a core, a guide step of guiding a carbon fiber bundle impregnated with a thermosetting resin using the guide device between the supplying step and the winding step, and the winding And a curing step of curing a thermosetting resin impregnated in the carbon fiber bundle after the step. A method for producing a carbon fiber bundle wound product is provided.

  In the method for producing a carbon fiber bundle wound product, the supplying step may be a step of supplying a tow prepreg in which a carbon fiber bundle is impregnated with a thermosetting resin in advance.

  In the method for producing the carbon fiber bundle wound product, the supplying step includes a feeding step of feeding out a carbon fiber bundle not impregnated with a thermosetting resin, and a step of immersing the fed carbon fiber bundle in a thermosetting resin bath. A resin dipping step of forming a carbon fiber bundle impregnated with a thermosetting resin.

  Furthermore, in the present invention, a resin-impregnated portion for impregnating the carbon fiber bundle with a thermosetting resin, a winding portion for winding the carbon fiber bundle impregnated with the thermosetting resin around a bobbin, the resin-impregnated portion, and the winding There is provided a manufacturing apparatus for a thermosetting resin-impregnated fiber bundle, comprising: a guide portion including the guide device that guides a carbon fiber bundle impregnated with a thermosetting resin with a gripping portion. .

  In the present invention, a resin impregnation step for impregnating a carbon fiber bundle with a thermosetting resin, a winding step for winding the carbon fiber bundle impregnated with the thermosetting resin around a bobbin, the resin impregnation step, and the winding step. A guide step of guiding the carbon fiber bundle impregnated with the thermosetting resin using the guide device between the taking step and the manufacturing method of the thermosetting resin-impregnated carbon fiber bundle. I will provide a.

  According to this invention, generation | occurrence | production of the fluff from a thermosetting resin impregnation carbon fiber bundle can be effectively suppressed by using said guide apparatus. Therefore, in the production of a carbon fiber bundle wound product or TPP using a thermosetting resin-impregnated carbon fiber bundle, it is possible to reduce defects in the production process associated with the generation of fuzz, and each carbon fiber bundle wound molding. The quality of the manufactured product or TPP can be improved.

The schematic plan view of the carbon fiber bundle winding apparatus by the thermosetting resin impregnation carbon fiber bundle which shows 1st Embodiment of this invention. The front view of the guide part in 1st Embodiment The schematic top view of the carbon fiber bundle winding apparatus by the thermosetting resin impregnation carbon fiber bundle using the wet method which shows another aspect of 1st Embodiment of this invention The schematic side view of the manufacturing apparatus of the resin impregnation fiber bundle which shows 2nd Embodiment of this invention The perspective view of the guide roller in 2nd Embodiment Illustration of surface roughness Ra Illustration of peak count PC The figure which shows the relationship between Ra and PC and the amount of fluff generation

Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a schematic plan view of a carbon fiber bundle winding device (FW device) using a thermosetting resin-impregnated carbon fiber bundle, showing one aspect of the first embodiment of the present invention. The carbon fiber bundle winding device using the thermosetting resin-impregnated carbon fiber bundle as used herein means that a core member or a hollow shape is formed by using the thermosetting resin-impregnated carbon fiber bundle as a reinforcing material in the production of the carbon fiber bundle winding product. This is an FW device that forms a product by winding around a core member (mandrel) used during molding.

  FIG. 1 shows a case where a liner constituting the inner wall of a container is used as a core member, and TPP supplied in a form in which a carbon fiber bundle is impregnated with a thermosetting resin in advance is wound around the outer periphery of the liner. 1 shows a carbon fiber bundle winding device for producing a winding container.

A thermosetting resin-impregnated carbon fiber bundle winding device (FW device) in FIG. 1 includes a tow prepreg supply unit 1, a first guide unit 2, a second guide unit 3, and a winding unit 5 for a liner 4. And a control unit 8.
The tow prepreg supply unit 1 is a device that supplies a tow prepreg T, and includes a plurality of bobbins 10 around which the tow prepreg T is wound. The supply speed of the tow prepreg T from the supply unit 1 is controlled by the control unit 8.
The 1st guide part 2 and the 2nd guide part 3 guide so that the tow prepreg T from the some bobbin 10 may be converged gradually.
The detailed structure of the second guide portion 3 will be described with reference to FIG. FIG. 2 is a front view of the second guide portion 3, and the second guide portion 3 is viewed in the direction of arrow A (the path direction of the tow prepreg T) in FIG. 1.
The second guide portion 3 includes a pair of upper and lower support bars 31 and 32 that are parallel to each other, and each support bar 31 and 32 extends in a direction perpendicular to the path direction of the tow prepreg T and in a horizontal direction. A plurality of support shafts 33a are arranged at a predetermined interval between the pair of upper and lower support bars 31, 32, and each support shaft 33a extends in the up-down direction. A cylindrical guide body 33b is rotatably supported on each support shaft 33a to constitute a guide roller 33.
Here, the tow prepreg T is drawn between appropriate guide rollers 33 and 33 and is guided in contact with the cylindrical surface of one of the guide bodies 33b.
The winding unit 5 includes a delivery eye 6 and a liner driving unit 7.
The delivery eye 6 is a device that focuses the tow prepreg T supplied from the supply unit 1 and winds it on the liner 4 with FW, and is provided so as to be reciprocally movable in a direction parallel to the axial direction of the liner 4. The orientation angle of the tow prepreg T is determined by the ratio between the rotational speed of the liner 4 and the moving speed of the delivery eye 6. The moving speed of the delivery eye 6 is controlled by the control unit 8.
The liner driving unit 7 rotationally drives the liner 4, which is a metal hollow cylindrical member, about its axis. Due to the rotation of the liner 4, the tow prepreg T that has passed through the delivery eye 6 is wound around the outer peripheral surface of the liner 4. The rotation speed of the liner 4 by the drive unit 7 is also controlled by the control unit 8.
As described above, the control unit 8 drives and controls the tow prepreg supply unit 1, the delivery eye 6, the liner driving unit 7, and the like.
Here, for example, the guide body 33b of the guide roller 33 of the second guide portion 3 is coated on the surface thereof with a surface roughness Ra of 0.75 to 4.0 μm and a peak count PC of 10 to 100. As a result, generation of fluff from the tow prepreg T due to contact with the guide body 33b is suppressed, defects in the manufacturing process associated with the generation of fluff are reduced, and the quality of the manufactured molded product is improved.

  The first embodiment of the present invention is not limited to the example shown in FIG. 1, and the product may be other than a container, and the core member may be other than a liner, for example, a solid member. Also, instead of the core member, the core member is not provided by winding the thermosetting resin-impregnated carbon fiber bundle around the mandrel corresponding to the shape of the hollow portion, and curing the thermosetting resin and then pulling out the mandrel. A hollow product can also be obtained.

  Moreover, although the 2nd guide part 3 of FIG. 1 was illustrated as a guide apparatus, it has a guide which can rotate or fix and contacts a thermosetting resin impregnation carbon fiber bundle, and guides the said fiber bundle As long as it is an apparatus, it is not limited to this.

FIG. 3 shows another aspect of the first embodiment of the present invention. In place of the TPP method shown in FIG. 1, a carbon fiber bundle winding device using a thermosetting resin-impregnated carbon fiber bundle using a wet method ( It is a schematic plan view of FW apparatus.
The thermosetting resin-impregnated carbon fiber bundle winding device (FW device) of FIG. 3 includes a thermosetting resin-impregnated carbon fiber bundle supply unit 20, a guide unit 3, a winding unit 5 to the liner 4, and a control. Part 8. In addition, the same code | symbol is attached | subjected to the same element as FIG. 1, and description is abbreviate | omitted.
The thermosetting resin resin carbon fiber bundle supply unit 20 guides the supply roll 21 that feeds out the carbon fiber bundle C1 not impregnated with the thermosetting resin and the carbon fiber bundle C1 from the supply roll 21 to converge. It comprises a guide part 22 and a thermosetting resin bath (resin bath) 23 that impregnates a thermosetting resin by allowing the carbon fiber bundle C1 from the guide part 22 to pass through. The obtained thermosetting resin-impregnated carbon fiber bundle C2 is supplied.
The thermosetting resin-impregnated carbon fiber bundle C <b> 2 supplied from the supply unit 20 goes to the winding unit 5 to the liner 4 through the guide unit 3. In the winding unit 5, the winding unit 5 is wound around the liner 4 in the same manner as the TPP method shown in FIG. 1.
Here, the guide device according to the present invention is used, for example, in the guide unit 3 in the same form as that shown in FIGS.

  In the wet method shown in FIG. 3, a carbon fiber bundle not impregnated with a thermosetting resin is impregnated with a thermosetting resin in the same process as the FW process to form a thermosetting resin-impregnated carbon fiber bundle. However, since this is wound, it is possible to reduce the cost as compared with the TPP method. On the other hand, in the wet method, since the carbon fiber bundle is impregnated by a simple method of immersing and passing through the thermosetting resin bath, only a low-viscosity thermosetting resin can be used, and the thermosetting resin-impregnated carbon is used. There is a limitation that high tackiness cannot be imparted to the fiber bundle. On the other hand, in the TPP method shown in FIG. 1, it is possible to impregnate a thermosetting resin with high viscosity using an impregnation apparatus such as a coater. It becomes possible to give a large degree of freedom to properties such as properties.

FIG. 4 is a schematic side view of an apparatus for producing a resin-impregnated fiber bundle (tow prepreg) showing a second embodiment of the present invention.
The tow prepreg manufacturing apparatus of FIG. 4 includes a feeding part 51 for the carbon fiber bundle T1, a guide part 53 for guiding the carbon fiber bundle T1, a resin impregnating part 56 for impregnating the carbon fiber bundle T1 with a thermosetting resin, It comprises a guide portion 60 for guiding a fiber bundle (TPP) T2 impregnated with a curable resin, and a winding portion 63 for winding TPP T2.
The feeding unit 51 is a device that supplies the carbon fiber bundle T1, and includes a plurality of bobbins 52 around which the carbon fiber bundle T1 is wound.
The guide portion 53 includes a pair of upper and lower opening bars 54 and 55, and guides the carbon fiber bundle T <b> 1 from the feeding portion 51 to the resin-impregnated portion 56.
The resin impregnated portion 56 is constituted by a series of guide roller groups 57, for example, and a thermosetting resin is supplied from a resin tank 58 to one roller by a gear pump 59. For example, a groove is formed in the roller, a carbon fiber bundle is passed through the groove, and a thermosetting resin fed from the gear pump 59 is supplied to the groove. The fiber bundle is impregnated with a thermosetting resin.
The guide unit 60 includes a final stage guide roller 61 and an external guide roller 62, and guides the fiber bundle T <b> 2 impregnated with the resin in the resin impregnating unit 56 to the winding unit 63.
The winding unit 63 is a device that winds the fiber bundle T <b> 2 impregnated with resin onto a bobbin, and includes a plurality of winding bobbins 64.
As a result, the fiber bundle T2 impregnated with the resin is commercialized as a tow prepreg in the form of the bobbin 64.
Here, FIG. 5 shows a perspective view of the guide roller 61 at the final stage of the resin impregnated portion 56. The guide roller 61 includes a support shaft 61a and a cylindrical guide body 61b rotatably supported on the support shaft 61a. The guide body 61b of the guide roller 61 is contacted with the guide body 61b by applying a coating with a surface roughness Ra of 0.75 to 4.0 μm and a peak count PC of 10 to 100 on the surface thereof. Generation | occurrence | production of the fluff from the resin impregnation fiber bundle T2 by this is suppressed, and the quality of the tow prepreg manufactured is improved.

  In the present invention, in an apparatus for guiding a fiber bundle impregnated with a thermosetting resin by bringing it into contact with a guide body, the surface roughness Ra is 0.75 to 4.0 μm on the surface of the guide body, and the peak count PC The coating is applied in a range of 10 to 100, and the details thereof will be described below with reference to Examples and Comparative Examples. In addition, this invention is not limited to a following example.

[Measurement of surface roughness]
For measuring the roughness of the coating material, Ra and PC on the coating surface were measured using a Pelometer M4Pi manufactured by Mahr.
As shown in FIG. 6, Ra is extracted from the roughness curve by the reference length L in the direction of the average line, and the absolute values of deviations from the average line of the extracted portion to the measurement curve are summed, and the average It is the value. This is also called arithmetic mean roughness, and has the feature that the influence of one scratch on the measured value is very small and a stable result can be obtained.
As shown in FIG. 7, the PC is the number of peaks per unit length L = 10 mm in the roughness curve. The roughness curve is obtained, and the center line is parallel to the center line and vertically from the center line. Is measured as the total number of counts until the measurement length of 10 mm is reached when a straight line having a distance of 0.13 μm is provided and the upper straight line is exceeded and then the lower straight line is counted.

[Example 1]
Carbon fiber tow prepreg impregnated with general-purpose epoxy resin (fiber: T800SC-24K manufactured by Toray Industries Inc., resin content: 29 wt%) 4 coatings made by Osaka Gas Chemical Co., Ltd. PC1215 / 620 (Ra = 2.87, PC = 20) Pass through two non-rotating uneven bars (6 mm each, SUS304) in a S shape so that they do not touch each other, and adhere to the bar when flowing 600 m at a speed of 25 m / min while applying a tension of 3 kg The weight of all fluff was measured.

[Example 2]
The weight of all fluff adhered to the bar was measured under the same conditions as in Example 1 except that the coating was a fluorine ceramic coating (Ra = 0.77, PC = 33).

Example 3
The weight of all fluff adhering to the bar was measured under the same conditions as in Example 1 except that the coating was a fluorine (PFA) coating (Ra = 1.75, PC = 85).

[Comparative Example 1]
The weight of all fluff adhering to the bar was measured under the same conditions as in Example 1 except that the coating was a brasstron coating (Ra = 0.69, PC = 233).

[Comparative Example 2]
The amount of all fluff adhering to the bar was measured under the same conditions as in Example 1 except that the bar was not coated (Ra = 0.27, PC = 280).

Example 4
Carbon fiber tow prepreg impregnated with general-purpose epoxy resin (fiber: T800SC-24K manufactured by Toray Industries, Inc., resin content: 29 wt%), 5 coatings made by Osaka Gas Chemical Co., Ltd. PC1215 / 620 (Ra = 2.87, PC = 20) Measure the weight of all fluff adhering to the rotating roller when it is passed through each of the six rotating rollers (material: aluminum, Φ8mm) and 1200m flowed at a tension of 4kg and a speed of 35m / min. did.

Example 5
The weight of all fluff adhering to the rotating roller was measured under the same conditions as in Example 4 except that the coating was a fluorine ceramic coating (Ra = 0.77, PC = 33).

[Comparative Example 3]
The weight of all fluff adhering to the rotating roller was measured under the same conditions as in Example 4 except that the coating was UNA-880GY (Ra = 5.29, PC = 103) manufactured by Toshiko.

  Table 1 shows the measurement results of the weight (mg) of the fluff collected in the above Examples and Comparative Examples.

  In addition to the above examples and comparative examples, the present inventors have measured Ra and PC in various coating materials and the weight of the generated fluff, and the results are the results of the above examples and comparative examples. It shows in Table 2 with a result.

FIG. 8 is a diagram showing the relationship between Ra and PC and the amount of fluff generation. Based on the data in Tables 1 and 2, the occurrence occurs at a position determined by Ra and PC, with Ra as the horizontal axis and PC as the vertical axis. A circle with an area proportional to the weight of the fluff is drawn.
According to this, within the range of Ra = 0.75 to 4.00 and PC = 10 to 100, indicated by the dotted frame in FIG. 8, the area of the circle corresponding to the amount of fluff generation becomes small, and the surface of the guide body It is considered to be an appropriate range of roughness. This range is a range where Ra is slightly higher than in the conventional case, but the PC is small.

  As described above, according to the present embodiment, in the apparatus for guiding the thermosetting resin-impregnated carbon fiber bundle in contact with the guide body, the surface roughness Ra is 0.75-4. By applying the coating having a peak count PC of 10 to 100 at 0 μm, generation of fluff from the thermosetting resin-impregnated carbon fiber bundle can be effectively suppressed.

  Further, the thermosetting resin-impregnated carbon fiber bundle winding device in the present embodiment includes a supply unit that supplies a carbon fiber bundle impregnated with a thermosetting resin, and a carbon impregnated with the supplied thermosetting resin. A winding part for winding the fiber bundle on a core member or a core member for forming a hollow shape, and a carbon fiber bundle impregnated with a thermosetting resin between the supply part and the winding part are guided. And a guide section including the above-mentioned coating guide device, so that it is possible to reduce defects in the thermosetting resin-impregnated carbon fiber bundle winding process due to the occurrence of fluff and improve the quality of the molded product Can be made. The supply unit may supply a tow prepreg obtained by impregnating a carbon fiber bundle with a thermosetting resin in advance, or may include a resin impregnation unit that impregnates the carbon fiber bundle with a thermosetting resin. Alternatively, a carbon fiber bundle may be impregnated with a thermosetting resin to form a thermosetting resin-impregnated carbon fiber bundle and supplied.

  In addition, the thermosetting resin-impregnated carbon fiber bundle winding method in this embodiment includes a supply step of supplying a carbon fiber bundle impregnated with a thermosetting resin, and a carbon impregnated with the supplied thermosetting resin. Between the winding step of winding the fiber bundle on a core member or a core member for forming a hollow shape, and between the supplying step and the winding step, using the above-mentioned coating guide device, thermosetting And a step of guiding the carbon fiber bundle impregnated with the resin, so that it is possible to reduce defects of the thermosetting resin-impregnated carbon fiber bundle winding process due to the generation of fluff and to improve the quality of the molded product Can be improved.

  In addition, the manufacturing apparatus for the thermosetting resin-impregnated carbon fiber bundle (toe prepreg) according to the present embodiment includes a resin-impregnated portion for impregnating the carbon fiber bundle with the thermosetting resin, and the thermosetting resin-impregnated carbon fiber bundle as a bobbin. Since it is configured to include a winding unit for winding, and the coating guide device for guiding the thermosetting resin-impregnated carbon fiber bundle between the resin-impregnated unit and the winding unit, it is accompanied by generation of fluff. In addition to reducing defects in the tow prepreg manufacturing process, the quality of the tow prepreg as a product can be improved.

  In addition, the manufacturing method of the thermosetting resin-impregnated carbon fiber bundle (toe prepreg) of the present embodiment includes a resin impregnation step of impregnating the carbon fiber bundle with the thermosetting resin, and a carbon fiber bundle impregnated with the thermosetting resin. A winding step of winding the wire around a bobbin, and a step of guiding the thermosetting resin-impregnated carbon fiber bundle using the coating guide device between the resin impregnation step and the winding step. Since it is comprised, while the defect of the tow prepreg manufacturing process accompanying fluff generation can be reduced, the quality of the tow prepreg as a product can be improved.

  The illustrated embodiment is merely an example of the present invention, and the present invention is not limited to the embodiment described directly, and includes various improvements and modifications made by those skilled in the art within the scope of the claims. Needless to say, it encompasses changes.

  The present invention suppresses the occurrence of fluff from the thermosetting resin-impregnated carbon fiber bundle, and can reduce problems associated with the occurrence of fluff in the thermosetting resin-impregnated carbon fiber bundle winding process or tow prepreg manufacturing process. The quality of the product molded by the method or the tow prepreg produced can be improved, and the industrial applicability is great.

DESCRIPTION OF SYMBOLS 1 Toe prepreg supply part 2 1st guide part 3 2nd guide part 4 Liner 5 Winding part 6 Delivery eye 7 Liner drive part 8 Control part 10 Bobbin 20 of tow prepreg T Supply part 21 of thermosetting resin impregnation carbon fiber bundle Supply roll 22 Guide part 23 Thermosetting resin bath (resin bath)
31, 32 Support bar 33 Guide roller 33a Support shaft 33b Guide body 51 Feeding portion 52 Bobbin 53 Guide portion 54, 55 Opening bar 56 Resin impregnation portion 57 Guide roller 58 Resin tank 59 Gear pump 60 Guide portion 61 Guide roller 61a Support shaft 61b Guide body 62 Guide roller 63 Winding part 64 Winding bobbin

Claims (7)

An apparatus for guiding a carbon fiber bundle impregnated with a thermosetting resin by bringing it into contact with a guide body,
A thermosetting resin, characterized in that a coating with a surface roughness Ra of 0.75 to 4.0 μm and a peak count PC of 10 to 100 is applied to a surface of the guide body that contacts the fiber bundle. Guide device for impregnated carbon fiber bundle. A supply unit for supplying a carbon fiber bundle impregnated with a thermosetting resin;
A winding section for winding a carbon fiber bundle impregnated with a supplied thermosetting resin around a core member or a core member for forming a hollow shape;
A guide unit including a guide device according to claim 1, which guides a carbon fiber bundle impregnated with a thermosetting resin between the supply unit and the winding unit;
A thermosetting resin-impregnated carbon fiber bundle winding device comprising: Supplying a carbon fiber bundle impregnated with a thermosetting resin;
A winding step of winding a carbon fiber bundle impregnated with a supplied thermosetting resin around a core member or a core member for forming a hollow shape;
Between the supplying step and the winding step, using the guide device according to claim 1, guiding the carbon fiber bundle impregnated with a thermosetting resin,
A curing step of curing the thermosetting resin impregnated in the carbon fiber bundle after the winding step;
The manufacturing method of a carbon fiber bundle winding product comprised including.   The method for producing a carbon fiber bundle wound product according to claim 3, wherein the supplying step is a step of supplying a tow prepreg in which a carbon fiber bundle is impregnated with a thermosetting resin in advance. The supply step includes
A feeding step of feeding out a carbon fiber bundle not impregnated with a thermosetting resin;
A resin dipping step in which the drawn carbon fiber bundle is immersed in a thermosetting resin bath to form a carbon fiber bundle impregnated with a thermosetting resin;
The manufacturing method of the carbon fiber bundle winding product of Claim 3 containing this. A resin-impregnated portion for impregnating a carbon fiber bundle with a thermosetting resin;
A winding unit for winding a carbon fiber bundle impregnated with a thermosetting resin around a bobbin;
A guide unit including a guide device according to claim 1, which guides a carbon fiber bundle impregnated with a thermosetting resin between the resin-impregnated unit and the winding unit;
An apparatus for producing a thermosetting resin-impregnated carbon fiber bundle, comprising: A resin impregnation step of impregnating a carbon fiber bundle with a thermosetting resin;
A winding step of winding a carbon fiber bundle impregnated with a thermosetting resin around a bobbin;
Between the resin impregnation step and the winding step, the guide step of guiding the carbon fiber bundle impregnated with the thermosetting resin using the guide device according to claim 1;
A method for producing a thermosetting resin-impregnated carbon fiber bundle, comprising: