WO2020158933A1 - Dispositif de moulage et procédé de moulage - Google Patents

Dispositif de moulage et procédé de moulage Download PDF

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Publication number
WO2020158933A1
WO2020158933A1 PCT/JP2020/003758 JP2020003758W WO2020158933A1 WO 2020158933 A1 WO2020158933 A1 WO 2020158933A1 JP 2020003758 W JP2020003758 W JP 2020003758W WO 2020158933 A1 WO2020158933 A1 WO 2020158933A1
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WO
WIPO (PCT)
Prior art keywords
fiber base
base material
molding
reinforcing fiber
pressing roller
Prior art date
Application number
PCT/JP2020/003758
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English (en)
Japanese (ja)
Inventor
宗太 加茂
清嘉 ▲高▼木
Original Assignee
三菱重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Publication of WO2020158933A1 publication Critical patent/WO2020158933A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns

Definitions

  • the present invention relates to a molding apparatus and a molding method for molding a reinforcing fiber base material.
  • an object of the present invention is to provide a molding apparatus and a molding method capable of suitably molding a reinforcing fiber base material into a predetermined shape without using a molding die.
  • the molding apparatus of the present invention has a feeding unit that feeds a reinforcing fiber base, a fixing unit that fixes a part of the reinforcing fiber base that is fed, and one surface of the reinforcing fiber base that is fed from the feeding unit.
  • a first molding head that abuts and molds the reinforcing fiber base material, and abuts on the other surface of the reinforcing fiber base material that is provided facing the first molding head and that is fed from the feeding portion.
  • a heating unit for heating and hardening the material.
  • the molding method of the present invention comprises a first molding head that comes into contact with one surface of a reinforced fiber base material that is partially fixed, and a second molding head that comes into contact with the other surface of the reinforced fiber base material.
  • the reinforcing fiber base material is heated and cured while moving relative to the reinforcing fiber base material.
  • the reinforcing fiber base material can be paid out from the payout part in a state where a part of the reinforcing fiber base material is fixed by the fixing part. Then, both sides of the fed reinforced fiber base material are sandwiched between the first molding head and the second molding head, and the first molding head, the second molding head and the reinforced fiber base material are relatively moved. However, the reinforcing fiber base material can be cured by the heating unit. Thereby, the reinforcing fiber base material can be suitably formed into a predetermined shape without using a forming die.
  • the feeding unit may be provided integrally with at least one of the first molding head and the second molding head, or may be provided separately from the molding head.
  • the fixing portion fixes, for example, the starting end of the reinforcing fiber base as a part of the reinforcing fiber base.
  • first molding head and the second molding head mold the reinforcing fiber base material while sandwiching and pressing from both sides of the reinforcing fiber base material.
  • the reinforcing fiber base material can be heated by the heating unit in a state of being pressed from both sides of the reinforcing fiber base material. It can be cured, and the reinforcing fiber base material can be accurately molded.
  • the first molding head has a first pressing roller that is in contact with one surface of the reinforcing fiber base material, and the second molding head is transferred to the other surface of the reinforcing fiber base material. It is preferable to have a second pressing roller in contact.
  • the reinforcing fiber base material delivered from the delivery portion can be formed while rolling the first pressing roller and the second pressing roller, so that the reinforcing fiber base material is smoothly formed.
  • the first pressing roller and the second pressing roller may have the same diameter or different diameters.
  • first pressing roller and the second pressing roller are rollers that impart a predetermined contour to the reinforced fiber base material, and the first pressing roller and the second pressing roller are provided.
  • rollers it is preferable that one pressing roller is a crown roller and the other pressing roller is a reverse crown roller.
  • an inspection unit for inspecting the quality of the reinforcing fiber base material after molding.
  • the reinforced fiber base material after molding can be immediately inspected by the inspection unit, so that molding defects such as defects can be detected quickly.
  • FIG. 1 is a schematic view of a molding apparatus according to this embodiment.
  • FIG. 2 is a perspective view showing an example of a molded product that can be molded by the molding device according to the present embodiment.
  • FIG. 3 is a perspective view showing an example of a molded product that can be molded by the molding device according to the present embodiment.
  • FIG. 4 is a perspective view showing an example of a molded product that can be molded by the molding device according to the present embodiment.
  • FIG. 5 is a block diagram of the molding apparatus according to the present embodiment.
  • the molding apparatus 10 is a molding apparatus that can mold a molded product having a predetermined three-dimensional shape by hardening the reinforced fiber base material while feeding it, and does not use a molding die. ing. In addition, the molding device 10 laminates the reinforcing fiber base material a plurality of times to form a molded article that is a laminated body.
  • FIG. 1 is a schematic view of a molding device according to this embodiment.
  • 2 to 4 are perspective views showing an example of a molded product that can be molded by the molding device according to the present embodiment.
  • FIG. 5 is a block diagram of the molding apparatus according to the present embodiment.
  • the reinforcing fiber base material used in the molding apparatus 10 will be described.
  • the reinforcing fiber base material is obtained by impregnating a reinforcing fiber with a resin, and in the present embodiment, for example, the reinforcing fiber base material is arranged in a feeding portion 35 described below in a state of being wound in a roll shape.
  • the reinforcing fiber for example, carbon fiber is used, but it is not limited to carbon fiber, and other plastic fiber, glass fiber, natural fiber or metal fiber may be used.
  • a thermoplastic resin is used as the resin, but the resin is not particularly limited as long as it is a resin that melts when heated, and a thermosetting resin may be used.
  • thermoplastic resin examples include polyether ether ketone (PEEK), polyether ketone ketone (PEKK), and polyphenylene sulfide (PPS).
  • PEEK polyether ether ketone
  • PEKK polyether ketone ketone
  • PPS polyphenylene sulfide
  • a thermosetting prepreg obtained by impregnating a reinforcing fiber with a thermosetting resin may be used as the reinforcing fiber base material.
  • the molding apparatus 10 includes a first molding unit 21, a second molding unit 22, a fixing unit 23, a quality inspection unit 24, and a control unit 25. ..
  • the first molding portion 21 and the second molding portion 22 are sandwiched from both sides of the reinforcing fiber base material to form the reinforcing fiber base material.
  • the first molding portion 21 is provided on one surface side (for example, the outer surface side) of the reinforcing fiber base, and has a first molding head 31 and a first moving arm 32.
  • molding part 21 moves the 1st shaping
  • the first molding head 31 is configured to include a feeding unit 35, a first pressing roller 36, a first driving unit 37, and a first heating unit 38.
  • the feeding unit 35 holds a roll-shaped reinforcing fiber base material inside, and is capable of continuously feeding out the held reinforcing fiber base material in the X direction.
  • the X direction is, for example, the horizontal direction.
  • the first pressing roller 36 rolls on one surface of the unwound reinforced fiber base material.
  • the first pressing roller 36 presses the reinforcing fiber base material toward the second molding portion 22 on the opposite side (the other surface side) with the reinforcing fiber base material sandwiched therebetween.
  • As the first pressing roller 36 for example, a straight roller that is linear in the axial direction (Y direction) is used.
  • the first pressing roller 36 is not particularly limited to the straight roller, and various rollers may be applied depending on the molded product.
  • the first driving unit 37 rotationally drives the first pressing roller 36, and for example, an electric motor is used.
  • the first drive unit 37 is electrically connected to the control unit 25.
  • the control unit 25 controls the first driving unit 37 to control the rotation operation of the first pressing roller 36.
  • the first heating unit 38 is a heater provided inside the first pressing roller 36, and heats the first pressing roller 36. Therefore, the first heating unit 38 heats the reinforcing fiber base material via the first pressing roller 36.
  • the first pressing roller 36 is brought into rolling contact with one surface of the reinforced fiber base material fed from the feeding portion 35, and the reinforced fiber base material is fixed by the first pressing roller 36. Press on the other side. Further, the first molding head 31 heats the reinforcing fiber base material by the first heating unit 38 while rotating the first pressing roller 36 by the first driving unit 37.
  • the first moving arm 32 is, for example, a multi-axis arm type robot, and the first forming head 31 has a predetermined shape in the XZ plane including the Z direction which is the vertical direction and the Z direction which is the horizontal direction. Move to position.
  • the first moving arm 32 moves the first molding head 31 so that the reinforcing fiber base material has a predetermined shape.
  • the first moving arm 32 may move the first molding head 31 in the XYZ three dimensions.
  • the second molding part 22 is provided on the other surface side (for example, the inner surface side) of the reinforcing fiber base material, and has a second molding head 41 and a second moving arm 42. Similarly to the first molding unit 21, the second molding unit 22 moves the second molding head 41 by the second moving arm 42 so that the reinforcing fiber base material has a predetermined shape.
  • the second molding head 41 is configured to include a second pressing roller 46, a second drive unit 47, and a second heating unit 48.
  • the second pressing roller 46 is in rolling contact with the other surface of the fed reinforced fiber base material.
  • the second pressing roller 46 presses the reinforcing fiber base material toward the first molding portion 21 on the opposite side (one surface side) with the reinforcing fiber base material interposed therebetween.
  • a straight roller that is linear in the axial direction (Y direction) is used so as to have a shape complementary to the first pressing roller 36.
  • the second pressing roller 46 like the first pressing roller 36, is not particularly limited to a straight roller, and various rollers may be applied depending on the molded product.
  • first pressing roller 36 and the second pressing roller 46 have different diameters.
  • the second pressing roller 46 has a larger diameter than the first pressing roller 36.
  • the first pressing roller 36 and the second pressing roller 46 may have the same diameter, or the first pressing roller 36 may have a larger diameter than the second pressing roller 46. ..
  • the first pressing roller 36 and the second pressing roller 46 are metal rollers made of metal.
  • the second driving unit 47 rotationally drives the second pressing roller 46, and for example, an electric motor is used.
  • the second drive unit 47 is electrically connected to the control unit 25.
  • the control unit 25 controls the second driving unit 47 to control the rotation operation of the second pressing roller 46.
  • the control unit 25 controls the first drive unit 37 and the second drive unit 47 in a coordinated manner to synchronize the rotation operation of the first pressing roller 36 and the second pressing roller 46.
  • the second heating unit 48 is a heater provided inside the second pressing roller 46 and heats the second pressing roller 46. Therefore, the second heating unit 48 heats the reinforcing fiber base material via the second pressing roller 46.
  • the second moving arm 42 is a multi-axis arm type robot, and the second forming head 41 is moved in the Z direction that is the vertical direction and the Z direction that is the horizontal direction. It is moved to a predetermined position in the included XZ plane.
  • the second moving arm 42 moves the second molding head 41 so that the reinforcing fiber base material has a predetermined shape.
  • the second moving arm 42 may also move the second molding head 41 in the XYZ three-dimensional manner, like the first moving arm 32.
  • the fixing portion 23 fixes at least a part of the reinforcing fiber base material, and for example, fixes the starting end of the reinforcing fiber base material fed from the feeding portion 35.
  • the fixing portion 23 is a reference position when the reinforcing fiber base material is molded into a predetermined shape.
  • the molding apparatus 10 molds a reinforcing fiber base material having a predetermined shape with the position of the fixed portion 23 as a reference.
  • the fixing portion 23 may be fixed by sandwiching the starting end of the reinforcing fiber base material, or may be fixed by adhering the starting end of the reinforcing fiber base material, and the fixing mode is not particularly limited. Further, the fixing portion 23 allows the fixed reinforcing fiber base material to face in any direction, and in FIG. 1, fixes the reinforcing fiber base material so as to face the upper side in the vertical direction (Z direction). doing.
  • the quality inspection unit 24 inspects the quality of the reinforced fiber base material after curing, and is, for example, a nondestructive inspection using ultrasonic waves.
  • the quality inspection unit 24 is configured to include a transmission unit 51 and a reception unit 52.
  • the transmitting unit 51 is provided on the first molding head 31, the receiving unit 52 is provided on the second molding head 41 or the second moving arm 42, and the quality inspection unit 24 is connected to the control unit 25. Therefore, the control unit 25 determines the quality of the molding based on the inspection result of the quality inspection unit 24.
  • the control unit 25 controls the first molding unit 21 and the second molding unit 22 and also performs quality inspection of the reinforced fiber base material after molding by the quality inspection unit 24.
  • the control unit 25 controls the first molding unit 21 and the second molding unit 22 in cooperation with each other to mold the reinforcing fiber base material into a predetermined shape.
  • the control unit 25 controls the first moving arm 32 and the second moving arm 42 so that the second molding head 41 follows the first molding head 31.
  • the control unit 25 may move the first molding head 31 in a state where the movement of the second molding head 41 is stopped so that the reinforcing fiber base material has a predetermined shape. Further, the control unit 25 may move the second molding head 41 while the movement of the first molding head 31 is stopped.
  • control unit 25 may move the second molding head 41 while moving the first molding head 31.
  • first moving arm 32 and the second moving arm 42 function as a moving unit that relatively moves the first molding head 31, the second molding head 41, and the reinforcing fiber base material. There is.
  • control unit 25 heats the reinforcing fiber base material from both sides by controlling the heating of the first heating unit 38 and the second heating unit 48.
  • first heating unit 38 and the second heating unit 48 function as a heating unit that heats and cures the reinforcing fiber base material.
  • the starting end of the reinforced fiber base material is fixed to the fixing portion 23, and the first molding portion 21 and the second molding portion 22 are used with the fixing portion 23 as a reference.
  • the reinforcing fiber base material is formed into a predetermined shape.
  • the molding device 10 cuts the reinforcing fiber base material, stacks the reinforcing fiber base material again on the molded reinforcing fiber base material, and molds the reinforcing fiber base material into a predetermined shape.
  • molding apparatus 10 shape
  • the molding apparatus 10 determines that the reinforcing fiber base material is defective in molding by the quality inspection unit 24 during molding of the reinforcing fiber base material, the first molding portion is applied to the portion determined to be defective. 21 and the second molding part 22 are remolded. Therefore, the molding apparatus 10 can eliminate the molding failure that has occurred during the molding of the molded product.
  • the molded product of FIG. 2 has a linear shape in the Y direction and has a predetermined shape in the XZ plane, and is a molded product having a so-called single contour surface.
  • the first pressing roller 36 and the second pressing roller 46 provided on the first molding head 31 and the second molding head 41 are straight rollers. ing.
  • the molding device 10 moves the first molding head 31 and the second molding head 41 by the first moving arm 32 and the second moving arm 42 so as to form a predetermined contour in the XZ plane.
  • the molding apparatus 10 stacks the reinforcing fiber base material in a predetermined number of layers to form the molded product shown in FIG.
  • the molded product in Fig. 3 has a linear shape in the Y direction, and has a mountain-valley shape in the XZ plane.
  • the first pressing roller 36 and the second pressing roller 46 provided on the first molding head 31 and the second molding head 41 are straight rollers. ing. Then, the molding apparatus 10 moves the first molding head 31 and the second molding head 41 by the first moving arm 32 and the second moving arm 42 so as to have a mountain-valley shape in the XZ plane. .. Then, the molding device 10 molds the molded product shown in FIG. 3 by stacking the reinforcing fiber base material in a predetermined number of layers.
  • the molded product in Figure 4 is a hemispherical molded product.
  • the first pressing roller 36 provided on the first molding head 31 is a reverse crown roller
  • the first pressing roller 36 is provided on the second molding head 41.
  • the second pressing roller 46 is a crown roller.
  • the molding apparatus 10 moves the first molding head 31 and the second molding head 41 by the first moving arm 32 and the second moving arm 42 along the outer spherical surface of the hemisphere.
  • the forming device 10 forms the molded product shown in FIG. 4 by stacking the reinforcing fiber bases by a predetermined number while stacking the reinforcing fiber bases in different directions. That is, in the molded product of FIG. 4, as shown in FIGS. 2 and 3, the reinforcing fiber base material is not extended only along the X direction, but the reinforcing fiber base material is extended along a direction including the Y direction. ..
  • a molded product having a so-called double contour surface which has a predetermined contour in the YZ plane and a predetermined contour in the XZ plane, may be molded.
  • the reinforcing fiber base material can be fed from the feeding portion 35 in a state where the fixing portion 23 fixes a part of the reinforcing fiber base material. Then, both sides of the fed reinforced fiber base material are sandwiched between the first molding head 31 and the second molding head 41, and the first molding head 31, the second molding head 41 and the reinforced fiber base material are opposed to each other.
  • the reinforced fiber base material can be cured by the first heating unit 38 and the second heating unit 48 while being moved as desired. Thereby, the reinforcing fiber base material can be suitably formed into a predetermined shape without using a forming die.
  • the first heating unit 38 and the second heating unit 48 are pressed by the first pressing roller 36 and the second pressing roller 46 from both sides of the reinforcing fiber base material.
  • the reinforced fiber substrate can be heated by. Therefore, the reinforcing fiber base material can be appropriately cured, and the reinforcing fiber base material can be accurately molded.
  • the reinforced fiber base material delivered from the delivery portion 35 can be molded while the first pressing roller 36 and the second pressing roller 46 are in rolling contact with each other.
  • the material can be smoothly molded.
  • the reinforced fiber base having the contour surface curved in the axial direction of the pressing roller.
  • the material can be molded. Therefore, for example, when the reinforcing fiber base material is curved in the direction in which the reinforcing fiber base material is fed, it is possible to mold the reinforcing fiber base material having a double contour surface.
  • the reinforced fiber base material after molding can be inspected immediately by providing the quality inspection unit 24, it is possible to quickly detect molding defects such as defects.
  • the feeding section 35 is provided integrally with the first molding head 31, but the configuration is not particularly limited to this.
  • the feeding section 35 may be provided integrally with the second molding head 41, or may be provided separately from the molding heads 31 and 41.
  • the reinforcing fiber base material may be fed from the feeding section 35 in advance.
  • the first heating part 38 is provided integrally with the first molding head 31, and the second heating part 48 is provided integrally with the second molding head 41.
  • the first heating part 38 is provided separately from the molding heads 31, 41. May be provided.
  • the fixing portion 23 fixes, for example, the starting end of the reinforcing fiber base as a part of the reinforcing fiber base, but may fix other parts of the reinforcing fiber base, Not limited.
  • the first molding head 31 and the second molding head 41 are moved by using the first moving arm 32 and the second moving arm 42.
  • the moving arm is not particularly limited as long as the second molding head 41 can be moved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

La présente invention comprend : une partie d'alimentation (35) qui alimente un matériau de base de fibre renforcée ; une partie de réception (23) qui reçoit une partie du matériau de base de fibre renforcée alimentée ; une première tête de moulage (31) qui vient en butée contre une surface du matériau de base de fibre renforcée alimenté à travers la partie d'alimentation (35) de façon à mouler le matériau de base de fibre renforcée ; une seconde tête de moulage (41) qui est disposée de façon à faire face à la première tête de moulage (31) et vient en butée contre l'autre surface du matériau de base de fibre renforcée alimentée à travers la partie d'alimentation (35) de façon à mouler le matériau de base de fibre renforcée ; un premier bras mobile (32) et un second bras mobile (42) qui déplacent la première tête de moulage (31), la seconde tête de moulage (41) et le matériau de base en fibre renforcée, relativement ; et une première partie de chauffage (38) et une seconde partie de chauffage (48) qui durcissent le matériau de base de fibre renforcée par chauffage du matériau de base de fibre renforcée.
PCT/JP2020/003758 2019-01-31 2020-01-31 Dispositif de moulage et procédé de moulage WO2020158933A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-016449 2019-01-31
JP2019016449A JP7171464B2 (ja) 2019-01-31 2019-01-31 成形装置及び成形方法

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WO2020158933A1 true WO2020158933A1 (fr) 2020-08-06

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431318A1 (de) * 1994-09-02 1996-03-07 Ksl Keilmann Sondermaschinenba Nähvorrichtung
EP1564135A1 (fr) * 2004-02-10 2005-08-17 Airbus France Procédé et dispositif d'usinage mécanique de panneaux flexibles avec compensation de l'effort d'usinage par un moyen d'appui
DE202008014886U1 (de) * 2008-11-10 2010-04-01 Kuka Systems Gmbh Fügeeinrichtung
US20110277935A1 (en) * 2010-05-12 2011-11-17 Cincinnati Machine, Llc Robotic based fiber placement cell with stationary dispensing head and creel
US20170151731A1 (en) 2014-03-28 2017-06-01 Composite Cluster Singapore Pte. Ltd. Freespace composite manufacturing process and device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431318A1 (de) * 1994-09-02 1996-03-07 Ksl Keilmann Sondermaschinenba Nähvorrichtung
EP1564135A1 (fr) * 2004-02-10 2005-08-17 Airbus France Procédé et dispositif d'usinage mécanique de panneaux flexibles avec compensation de l'effort d'usinage par un moyen d'appui
DE202008014886U1 (de) * 2008-11-10 2010-04-01 Kuka Systems Gmbh Fügeeinrichtung
US20110277935A1 (en) * 2010-05-12 2011-11-17 Cincinnati Machine, Llc Robotic based fiber placement cell with stationary dispensing head and creel
US20170151731A1 (en) 2014-03-28 2017-06-01 Composite Cluster Singapore Pte. Ltd. Freespace composite manufacturing process and device

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JP2020121549A (ja) 2020-08-13

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