WO2012066851A1 - フィラメントワインディング装置 - Google Patents
フィラメントワインディング装置 Download PDFInfo
- Publication number
- WO2012066851A1 WO2012066851A1 PCT/JP2011/071625 JP2011071625W WO2012066851A1 WO 2012066851 A1 WO2012066851 A1 WO 2012066851A1 JP 2011071625 W JP2011071625 W JP 2011071625W WO 2012066851 A1 WO2012066851 A1 WO 2012066851A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fiber bundle
- bobbin
- unit
- slack
- winding
- Prior art date
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Classifications
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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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
- B65H59/387—Regulating unwinding speed
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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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/58—Winding and joining, e.g. winding spirally helically
- B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
- B29C53/602—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels for tubular articles having closed or nearly closed ends, e.g. vessels, tanks, containers
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
- B29C53/8016—Storing, feeding or applying winding materials, e.g. reels, thread guides, tensioners
-
- 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
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
- B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/80—Component parts, details or accessories; Auxiliary operations
- B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
- B29C53/8016—Storing, feeding or applying winding materials, e.g. reels, thread guides, tensioners
- B29C2053/8025—Storing, feeding or applying winding materials, e.g. reels, thread guides, tensioners tensioning
Definitions
- the present invention relates to a filament winding apparatus.
- a filament winding apparatus that includes a hoop winding device and a helical winding device, and alternately and repeatedly performs hoop winding and helical winding on the liner to wind a fiber bundle around the liner to form a reinforcing layer is known.
- Patent Document 1 A filament winding apparatus that includes a hoop winding device and a helical winding device, and alternately and repeatedly performs hoop winding and helical winding on the liner to wind a fiber bundle around the liner to form a reinforcing layer.
- the hoop winding device has a winding table that rotates around the central axis of the liner.
- a bobbin is rotatably attached to the winding table.
- the end of the fiber bundle is fixed to the liner, and the winding table rotates around the central axis of the liner, whereby the fiber bundle is wound around the outer peripheral surface of the liner.
- the bobbin rotates as the fiber bundle is pulled out toward the liner.
- the rotation speed of the winding table in the hoop winding is not constant.
- the speed of the fiber bundle drawn out from the bobbin toward the liner and wound around the liner (winding speed) is not constant.
- the winding direction of the hoop winding is reversed at the end portion of the liner, the moving speed of the hoop winding device is reduced near the end portion and the rotation speed of the winding table is once reduced. After reversing the moving direction of the hoop winding device, the rotation speed of the winding table is increased to the original speed.
- the rotation speed of the winding table may fluctuate greatly, or even if the fluctuation amount is small, it may fluctuate rapidly.
- the winding speed which is the speed of the fiber bundle drawn from the bobbin, may vary greatly or may vary rapidly.
- the bobbin rotates by pulling out the fiber bundle, when the winding speed varies, the rotation speed of the bobbin varies following the winding speed.
- the bobbin rotation speed may not be able to follow the change in the winding speed of the fiber bundle when the winding speed fluctuates greatly or changes abruptly.
- the bobbin continues to rotate due to inertia. Therefore, there is a problem that the fiber bundle is excessively drawn out from the bobbin and the fiber bundle is loosened.
- the speed of the fiber bundle drawn from the bobbin toward the liner and wound around the liner matches the speed of the fiber bundle unwound from the bobbin by the bobbin rotation (unwinding speed).
- the fiber bundle is not loosened, and the fiber bundle is wound around the liner in a state where a predetermined tension is applied.
- the unwinding speed of the fiber bundle fed out from the bobbin is larger than the winding speed of the fiber bundle, the fiber bundle becomes slack due to the speed difference, and as a result, the tension of the fiber bundle wound around the outer peripheral surface of the liner is increased. There is a problem that the strength of the reinforcing layer is reduced.
- a servo motor for controlling the rotation of the bobbin is provided on the winding table, and the servo motor is electrically controlled from the outside of the winding table to wind the bobbin around the fiber bundle. It can be considered to actively rotate according to the speed.
- the winding table to which the bobbin is attached rotates itself. Providing a large number of electrodes for transmitting a control signal to the servo motor from the outside of the winding table and supplying power for driving the motor are complicated and are not easy.
- the present invention has been made to solve the above problems.
- the first object of the present invention is to prevent excessive unwinding of the fiber bundle due to fluctuations in the winding speed of the fiber bundle, to reduce the tension of the fiber bundle wound around the outer peripheral surface of the liner, and to reduce the strength of the reinforcing layer. It is to provide a filament winding apparatus for preventing.
- a second object of the present invention is to provide a filament winding apparatus that does not require a large number of electrodes or a large amount of power to be supplied to the winding table in order to control the rotation of the bobbin.
- the first invention is a filament winding device for winding a fiber bundle around a liner surface with a hoop winding device
- the hoop winding device includes a winding table, a bobbin support portion, a braking portion, a slack eliminating portion, A detection unit; and a control unit.
- the winding table rotates around the central axis of the liner.
- the bobbin support part is provided on the winding table and supports the bobbin of the fiber bundle.
- the braking unit brakes the rotation of the bobbin supported by the bobbin support unit.
- the slack eliminating portion absorbs slack due to a speed difference between the winding speed of the fiber bundle drawn out from the bobbin and wound around the liner surface, and the unwinding speed of the fiber bundle unwound from the bobbin by the bobbin rotation.
- the detection unit detects that the slack absorbed in the slack removing unit is greater than or equal to a predetermined amount and that the slack absorbed in the slack removing unit is less than a predetermined amount.
- the control unit increases the braking force of the braking unit based on the detection signal from the detection unit that detects that the slack absorbed in the slack eliminating unit is a predetermined amount or more, and the slack absorbed in the slack eliminating unit is Based on the detection signal from the detection unit that detects that the amount is less than the predetermined amount, the braking force of the braking unit is decreased.
- 2nd invention is 1st invention, Comprising: When a detection part detects excessive unwinding of a fiber bundle, a control part increases the braking force of a braking part, and a braking part makes rotation of a bobbin. When the detection unit detects that excessive unwinding of the fiber bundle has been resolved, the control unit decreases the braking force of the braking unit, and the braking unit releases the stop of the bobbin rotation.
- 3rd invention is either 1st invention or 2nd invention, Comprising: A braking part contains the hysteresis brake, A control part controls hysteresis current supplied to a hysteresis brake, and hysteresis brake Increase and decrease the braking force.
- the braking force for braking the rotation of the bobbin when it is detected that the slack absorbed in the slack eliminating portion is a predetermined amount or more, the braking force for braking the rotation of the bobbin is increased. When it is detected that the slack absorbed in the slack eliminating portion is less than a predetermined amount, the braking force for braking the rotation of the bobbin is decreased. Thereby, excessive unwinding of the fiber bundle due to fluctuations in the winding speed of the fiber bundle can be prevented, and a decrease in the tension of the fiber bundle wound around the outer peripheral surface of the liner and a decrease in the strength of the reinforcing layer can be prevented.
- the control unit increases the braking force of the braking unit, and the braking unit stops the rotation of the bobbin.
- the control unit decreases the braking force of the braking unit, and the braking unit releases the stop of the bobbin rotation. This reliably prevents excessive unwinding of the fiber bundle due to fluctuations in the winding speed of the fiber bundle, and prevents a decrease in the tension of the fiber bundle wound around the outer peripheral surface of the liner and a decrease in the strength of the reinforcing layer. it can.
- the control unit increases and decreases the braking force of the hysteresis brake by controlling the excitation current supplied to the hysteresis brake.
- the excitation current supplied to the hysteresis brake.
- FIG. 1 is a side view of an FW device 100 according to a first embodiment.
- FIG. The side view of the slack removal part 60.
- FIG. The side view of the slack removal part 60.
- FIG. The side view of the slack removal part 60.
- FIG. The figure which shows the flow of operation
- FW apparatus 100 the filament winding apparatus 100 according to the first embodiment of the present invention.
- FIG. 1 is a side view showing the FW device 100.
- FIG. 1 shows a state where the hoop winding device 30 is in the winding position.
- the FW device 100 winds the fiber bundle F impregnated with resin around the liner 1 by alternately repeating the hoop winding by the hoop winding device 30 and the helical winding by the helical winding device 40 around the liner 1. It is a device that goes.
- Arrows A and B shown in FIG. 1 indicate the front-rear direction of the FW device 100 and the transfer direction of the liner 1 in helical winding.
- the liner 1 since the liner 1 is reciprocated in the front-rear direction of the FW device 100, the liner 1 may be transferred in the direction of arrow A or in the direction of arrow B.
- the liner 1 is a substantially cylindrical hollow container formed of, for example, a high-strength aluminum material or a polyamide resin.
- the pressure resistance is improved by winding the fiber bundle F around the outer peripheral surface 1S. That is, the liner 1 is a base material constituting the pressure vessel.
- the liner 1 means both a state before winding the fiber bundle F and a state in the middle of winding the fiber bundle F.
- the outer peripheral surface 1S of the liner 1 also means the surface of the wound fiber bundle F.
- the FW device 100 mainly includes a main base 10, a liner transfer device 20, a hoop winding device 30, a helical winding device 40, and a control unit 90.
- the main base 10 constitutes the basis of the FW device 100.
- a liner transfer device rail 11 is provided on the upper portion of the main base 10.
- the liner transfer device 20 is placed on the liner transfer device rail 11.
- a hoop winding device rail 12 is provided on the main base 10 in parallel with the liner transfer device rail 11.
- a hoop winding device 30 is placed on the rail 12 for the hoop winding device. With such a configuration, the liner transfer device 20 and the hoop winding device 30 can be moved with respect to the main base 10.
- the helical winding device 40 is fixed to the main base 10.
- the liner transfer device 20 is a device that rotates the liner 1 around a rotation axis in a direction along the front-rear direction of the FW device 100 and also transfers the liner 1 in the front-rear direction of the FW device 100.
- the liner transfer device 20 mainly includes a base 21 and a liner support portion 22. The driving of the liner transfer device 20 is controlled by the control unit 90.
- the base 21 includes a pair of liner support portions 22.
- Each liner support portion 22 includes a liner support frame 23 and a support shaft 24.
- the liner support frame 23 extends upward from the base 21.
- the support shaft 24 extends from the liner support frame 23 along the front-rear direction of the FW device 100.
- the support shaft 24 is rotated in one direction around the axis by a power mechanism (not shown).
- the support shaft 24 supports both ends of the liner 1 and rotates the liner 1.
- the liner transfer device 20 rotates the liner 1 about the support shaft 24 as a rotation axis, and transfers the liner 1 in the front-rear direction of the FW device 100.
- the hoop winding device 30 is a device that hoops the fiber bundle F around the outer peripheral surface 1S of the liner 1. In the hoop winding, the fiber bundle F is wound around the outer peripheral surface 1S of the liner 1 so that the winding angle of the fiber bundle F with respect to the central axis of the liner 1 is approximately 90 degrees.
- the hoop winding device 30 mainly includes a base 31, a power mechanism 32, and a hoop winding device 33. The driving of the hoop winding device 30 is controlled by the control unit 90.
- the base 31 is provided with a power mechanism 32 and a hoop winding device 33.
- the hoop winding device 33 includes a winding table 34.
- a space for inserting the liner 1 is provided at the center of the winding table 34, and bobbins 70A, 70B, 70C, and 70D are disposed around the space (see FIG. 3).
- the fiber bundle F is supplied from the bobbins 70A, 70B, 70C, and 70D to the outer peripheral surface 1S of the liner 1.
- the power mechanism 32 rotates the hoop winding device 33 around the central axis of the liner 1.
- the bobbins 70A, 70B, 70C, and 70D are obtained by winding a fiber bundle F around a paper tube and storing it.
- the position of the liner 1 is fixed, and the hoop winding device 33 is rotated around the central axis of the liner 1 while the hoop winding device 30 is reciprocated along the central axis direction of the liner 1. Thereby, hoop winding is performed.
- the winding mode of the fiber bundle F can be freely changed by adjusting the moving speed of the hoop winding device 30 and the rotation speed of the winding table 34.
- the hoop winding device 30 will be described in detail later.
- the helical winding device 40 is a device that helically winds the fiber bundle F around the outer peripheral surface 1S of the liner 1.
- the fiber bundle F is wound around the outer peripheral surface 1S of the liner 1 so that the winding angle of the fiber bundle F becomes a predetermined value (for example, 0 to 60 degrees).
- the helical winding device 40 mainly includes a base 41 and a helical winding device 42. The driving of the helical winding device 40 is controlled by the control unit 90.
- the base 41 is provided with a helical winding device 42.
- the helical winding device 42 includes a first helical head 43 and a second helical head 44.
- a fiber bundle F is supplied to the first helical head 43 and the second helical head 44 from a plurality of bobbins (not shown), and the fiber bundle F is guided to the outer peripheral surface 1S of the liner 1.
- the helical winding device 40 In helical winding, the helical winding device 40 is fixed, and the liner transfer device 20 transfers the liner 1 in the direction of the rotation axis while rotating. Thereby, helical winding is performed.
- the winding aspect of the fiber bundle F can be freely changed by adjusting the transfer speed and rotation speed of the liner 1.
- FIG. 2 is a side view of the hoop winding device 30, and FIG. 3 is a front view of the hoop winding device 30.
- the winding table 34 of the hoop winding device 30 has a bobbin support 50, bobbins 70A, 70B, 70C, 70D, a frame 80, guide rollers 71, 72, 73, 74, and slack.
- Four sets of the take-out unit 60 and the detection unit 67 are arranged.
- the bobbin support 50, the frame 80, the guide rollers 71, 72, 73, 74,... Provided for each of the bobbins 70A, 70B, 70C, and 70D have substantially the same configuration. Therefore, the configuration common to each set will be described mainly with respect to the bobbin support 50, the frame 80, the guide roller 71, etc. provided for the bobbin 70A, and provided for the bobbins 70B, 70C, 70D. Description of the bobbin support 50, the frame 80, the guide rollers 71, etc., is omitted.
- the winding table 34 is rotated in the direction of arrow R in FIG.
- the power mechanism 32 is connected to the control unit 90, and rotation and stop are controlled based on a signal from the control unit 90.
- the fiber bundle F guided from the fiber supply guide 75 to the liner 1 is wound around the outer peripheral surface 1S of the liner 1 while being rotated in the arrow R direction.
- the fiber bundle F is supplied in the direction of the arrow FA, which is the downstream side in the rotation direction of the winding table 34.
- the bobbin support part 50 that supports the bobbin 70A is rotatably supported with respect to the winding table 34, and is connected to a hysteresis brake 51 as a braking part.
- a hysteresis brake 51 as a braking part.
- the hysteresis brake 51 brakes the rotation of the bobbin 70A supported by the bobbin support 50.
- the hysteresis brake 51 is connected to the bobbin support 50, and brakes the rotation of the bobbin 70A by braking the rotation of the bobbin support 50.
- the hysteresis brake 51 is a kind of electromagnetic brake, and can increase or decrease the braking force by controlling to increase or decrease the exciting current supplied to the coil.
- the control unit 90 is connected to each hysteresis brake 51.
- the control unit 90 increases and decreases the braking force of the hysteresis brake 51 by individually controlling the excitation current supplied to each hysteresis brake 51.
- the electric power required for the hysteresis brake 51 may be supplied from the outside of the winding table 34, or a battery may be mounted on the winding table 34 and supplied from this battery.
- the four fiber bundles F from the bobbins 70 ⁇ / b> A, 70 ⁇ / b> B, 70 ⁇ / b> C, 70 ⁇ / b> D supported by the bobbin support part 50 are collected by the guide rollers 71, 72, 73, 74 and guided to the fiber supply guide 75.
- the guide rollers 71, 72, 73, 74 are each supported by the frame 80.
- the frame 80 includes a first frame 81 erected with respect to the winding table 34, a second frame 82 provided on the first frame 81, and a third frame 83.
- the fiber bundle F from the bobbin 70A includes guide rollers 71B and 71C, guide rollers 72A and 72C, guide rollers 73A and 73C, guides. Guided to the fiber supply guide 75 via the rollers 74A and 74C and the guide roller 71A.
- the fiber bundle F from the bobbin 70B is guided by the guide rollers 72B and 72C, and merges with the fiber bundle F from the upstream bobbin 70A by the guide roller 72C. Guided.
- the fiber bundle F from the bobbin 70C is guided by the guide rollers 73B and 73C, and merges with the fiber bundle F from the upstream bobbins 70A and 70B by the guide roller 73C.
- the fiber bundle F from the bobbin 70D is guided by the guide rollers 74B and 74C, and merges with the fiber bundle F from the upstream bobbins 70A, 70B, and 70C by the guide roller 74C, and the fibers from the bobbins 70A, 70B, and 70C are hereinafter referred to. It is guided to the fiber supply guide 75 together with the bundle F.
- the fiber supply guide 75 supplies the bundled four fiber bundles F to the outer peripheral surface 1S of the liner 1.
- a slack eliminating portion 60 is provided in the middle of the path of the fiber bundle F from the bobbin 70A to the guide roller 71B.
- the slack eliminating portion 60 absorbs the slack of the fiber bundle F drawn from the bobbin 70A.
- the slack eliminating portion 60 is provided on the frame 80.
- the slackness of the fiber bundle F is pulled out from the bobbin 70A, and when the winding speed V1 of the fiber bundle F wound around the outer peripheral surface 1S of the liner 1 is greatly changed or rapidly changed, the winding speed V1 of the fiber bundle F is This occurs when the rotation speed of the bobbin 70A cannot follow the change. For example, when the winding speed V1 of the fiber bundle F is suddenly decelerated, the bobbin 70A continues to rotate due to inertia, so that the fiber bundle F is unwound from the bobbin 70A and unwound. The speed V2 becomes larger than the winding speed V1 of the fiber bundle F, and the fiber bundle F is slackened.
- the slack of the fiber bundle F is drawn from the bobbin 70A, and the fiber bundle F is unwound from the bobbin 70A by the winding speed V1 of the fiber bundle F wound around the outer peripheral surface 1S of the liner 1 and the rotation of the bobbin 70A. This is caused by the speed difference from the unwinding speed V2.
- FIG. 4 is a side view of the slack eliminating portion 60.
- the slack eliminating unit 60 includes a first roller 61, a second roller 62, a third roller 63, a fourth roller 64, and an arm 65.
- the fiber bundle F is wound around the first roller 61, the second roller 62, the third roller 63, and the fourth roller 64 in this order.
- the first roller 61 is a roller serving as a fulcrum of the fiber bundle F unwound from the bobbin 70 ⁇ / b> A, and is provided to be rotatable with respect to the first frame 81.
- the fourth roller 64 is a roller that guides the fiber bundle F to the guide roller 71 ⁇ / b> B, and is provided to be rotatable with respect to the first frame 81.
- the second roller 62 is a roller that guides the fiber bundle F between the first roller 61 and the fourth roller 64, and is provided to be rotatable with respect to the first frame 81.
- the third roller 63 is a roller for increasing or decreasing the path length of the fiber bundle F between the second roller 62 and the fourth roller 64, and is provided to be rotatable with respect to the arm 65.
- the arm 65 is provided on the first frame 81 so as to be swingable in the D1 direction and the D2 direction about the support shaft 66.
- the support shaft 66 is provided with a torsion spring (not shown), and the third roller 63 provided on the arm 65 is urged away from the second roller 62 and the fourth roller 64.
- the virtual plane on which the arm 65 swings is parallel to the rotation axis of the winding table 34. Thereby, the influence of the centrifugal force due to the rotation of the winding table 34 on the arm 65 is reduced.
- the winding speed V1 of the fiber bundle F is the same as the unwinding speed V2 of the fiber bundle F to be unwound, or the winding speed V1 of the fiber bundle F is unraveled.
- the unwinding speed V2 of the fiber bundle F is larger, the third roller 63 is pulled in a direction approaching the second roller 62 and the fourth roller 64. Therefore, the arm 65 rotates in the direction D ⁇ b> 1 against the urging force of the torsion spring, and the third roller 63 approaches the second roller 62 and the fourth roller 64. At the position where the third roller 63 approaches the second roller 62 and the fourth roller 64 to a predetermined distance, the arm 65 contacts the member that supports the first roller 61, and further approach is prevented.
- the third roller 63 is moved to the arm 65. Due to the urging force of the torsion spring provided on the support shaft 66, the arm 65 rotates in the direction D ⁇ b> 2 and moves in a direction away from the second roller 62 and the fourth roller 64.
- the arm 65 moves in the D2 direction before slackening occurs. Rotate to absorb slack and prevent tension from falling. Further, when the winding speed V1 of the fiber bundle F becomes larger than the unwinding speed V2 of the fiber bundle F to be unwound and the tension of the fiber bundle F rises, the arm 65 rotates in the direction D1, and the tension is increased. Prevent the rise. That is, the slack eliminating portion 60 can absorb the slack generated in the fiber bundle F within the swing range of the arm 65.
- the detection unit 67 detects that the arm 65 has been rotated to a predetermined position and that the arm 65 has not been rotated to a predetermined position. That is, the detection unit 67 detects that the slack absorbed in the slack eliminating unit 60 is greater than or equal to a predetermined amount and that the slack absorbed in the slack eliminating unit 60 is less than a predetermined amount.
- the detection unit 67 When the detection unit 67 detects that the slack absorbed by the slack removal unit 60 is greater than or equal to a predetermined amount by detecting the arm 65, the detection unit 67 transmits a detection signal to that effect to the control unit 90. In addition, when detecting that the slack absorbed by the slack eliminating unit 60 is less than a predetermined amount by not detecting the arm 65, the detecting unit 67 transmits a detection signal to that effect to the control unit 90.
- a known sensor such as a photoelectric sensor can be used.
- the electric power required for the detection unit 67 may be supplied from the outside of the winding table 34, or a battery may be mounted on the winding table 34 and supplied from this battery.
- the control unit 90 increases the braking force of the hysteresis brake 51 based on the detection signal from the detection unit 67 when the detection unit 67 detects that the slack absorbed in the slack removal unit 60 is greater than or equal to a predetermined amount. .
- the detection unit 67 detects this and the control unit 90 detects that fact. Send a signal.
- the control unit 90 performs control to increase the braking force of the hysteresis brake 51.
- the braking force is set to such a degree that the rotation of the bobbin 70A is stopped.
- the braking force may be a braking force that reduces the rotation speed of the bobbin 70A but does not reach the stop.
- the control unit 90 increases the braking force of the hysteresis brake 51 based on the detection signal from the detection unit 67. Decrease.
- the detection unit 67 detects this and the control unit 90 detects that fact. Send a signal.
- the control unit 90 receives this detection signal, it performs control to reduce the braking force of the hysteresis brake 51.
- the braking force in this state is 0.
- the braking force may not be set to 0, and a certain amount of braking force may be applied.
- the liner 1 used in the present embodiment includes a cylindrical portion having a constant radius and dome portions provided at both ends of the cylindrical portion (see FIG. 1). And the liner 1 shall be mounted
- the control unit 90 includes a hoop winding condition, that is, the moving speed of the hoop winding device 30 in each part of the liner 1, the rotation speed of the winding table 34 in each part of the liner 1, the number of times the hoop winding apparatus 30 is reciprocated, It is assumed that winding conditions such as a moving distance of the winding device 30 are input in advance by an operator.
- the controller 90 controls the driving of the hoop winding device 30 based on the input winding conditions as follows.
- the slack eliminating unit 60 operates independently, but since the content of the operation is common, the operation of the slack eliminating unit 60 provided for the bobbin 70A will be described.
- the state immediately before starting the winding of the fiber bundle F by the hoop winding device 30 will be described.
- the fiber bundle F is not in tension.
- the arm 65 is in a state of being rotated in the direction D2 by the urging force of a torsion spring provided on the support shaft 66 (see FIG. 6).
- step S101 When the winding of the fiber bundle F by the hoop winding device 30 is started (step S101), the detection unit 67 starts detection (step S102).
- the fiber bundle F is wound by the hoop winding device 30, the fiber bundle F is hoop-wound around the outer peripheral surface 1S of the liner 1 by moving the winding table 34 in the horizontal direction in the figure while rotating.
- the fiber bundle F is not yet in tension.
- the arm 65 is in a state of being rotated in the direction D2 by the urging force of a torsion spring provided on the support shaft 66 (see FIG. 6). Therefore, the detection unit 67 detects the arm 65 (Yes in step S103).
- the detection unit 67 detects the arm 65 (Yes in step S103), the tension of the fiber bundle F is reduced, and the arm 65 is rotated to a position detected by the detection unit 67.
- the detection unit 67 detects that the slack absorbed in the slack removal unit 60 is equal to or greater than a predetermined amount, and transmits a detection signal to that effect to the control unit 90.
- the control unit 90 increases the braking force of the hysteresis brake 51 to the maximum (step S104).
- the detection unit 67 continues to detect the arm 65, and when the detection unit 67 detects the arm 65 (Yes in step S105), the tension of the fiber bundle F is still decreased, and the arm 65 is detected by the detection unit 67. It is in the state which exists in the position (refer FIG. 6). In this case, the detection unit 67 detects that the slack absorbed in the slack removal unit 60 is equal to or greater than a predetermined amount, and transmits a detection signal to that effect to the control unit 90. Based on the detection signal from the detector 67, the controller 90 continues to increase the braking force of the hysteresis brake 51 to the maximum (step S104).
- the detection unit 67 continues to detect the arm 65, and when the detection unit 67 does not detect the arm 65 (No in step S105), the fiber bundle F is under a predetermined tension, and the arm 65 is detected by the detection unit. It exists in the position which is not detected by 67 (refer FIG. 5). In this case, the detection unit 67 detects that the slack absorbed by the slack eliminating unit 60 is less than a predetermined amount, and transmits a detection signal to that effect to the control unit 90. The control unit 90 reduces the braking force of the hysteresis brake 51 based on the detection signal from the detection unit 67 (step S106). The bobbin 70A starts to rotate, and the fiber bundle F is supplied to the liner 1.
- step S107 it is determined whether or not the winding of the fiber bundle F by the hoop winding device 30 has been completed. If it is determined that the winding of the fiber bundle F has not been completed (No in step S107), step 103 is repeated. .
- step 103 the detection unit 67 continues to detect the arm 65, and when the detection unit 67 no longer detects the arm 65 (No in step S103), a predetermined tension is applied to the fiber bundle F, and the arm 65 Is present at a position that is not detected by the detection unit 67 (see FIG. 5).
- the detection unit 67 detects that the slack absorbed by the slack eliminating unit 60 is less than a predetermined amount, and transmits a detection signal to that effect to the control unit 90.
- the control unit 90 sets the braking force of the hysteresis brake 51 to be reduced based on the detection signal from the detection unit 67.
- step 103 to step 107 are repeated until it is determined in step 107 that the winding of the fiber bundle F by the hoop winding device 30 has been completed (Yes in step S107).
- the arm 65 of the slack eliminating portion 60 repeats the states shown in FIGS.
- the winding speed V1 of the fiber bundle F becomes smaller than the unwinding speed V2 of the fiber bundle F to be unwound and the tension of the fiber bundle F decreases
- the arm 65 rotates in the direction D2 before slackening occurs. Absorbs slack and prevents tension from falling.
- the arm 65 rotates to the position detected by the detection unit 67, the braking force of the hysteresis brake 51 is increased to the maximum, and the rotation of the bobbin 70A is stopped.
- the fiber bundle F is supplied to the liner 1 by the arm 65 rotating in the direction D1, and therefore the hoop winding of the fiber bundle F is continued.
- the winding speed V1 of the fiber bundle F becomes greater than the unwinding speed V2 of the fiber bundle F to be unwound and the tension of the fiber bundle F increases, the arm 65 rotates in the D1 direction.
- the arm 65 rotates to a position where it is not detected by the detection unit 67, the braking force of the hysteresis brake 51 is reduced, the rotation of the bobbin 70A is started, and the fiber bundle F is supplied to the liner 1.
- step S107 If it is determined in step 107 that the winding of the fiber bundle F by the hoop winding device 30 has been completed (Yes in step S107), the detection unit 67 ends the detection (step S108).
- the FW device 100 according to the present embodiment described above has the following effects.
- the hysteresis brake 51 increases the braking force that brakes the rotation of the bobbin 70A, and rotates the bobbin 70A. Stop.
- the detection unit 67 detects that the slack absorbed by the slack eliminating unit 60 is less than a predetermined amount, the hysteresis brake 51 reduces the braking force that brakes the rotation of the bobbin 70A and stops the bobbin 70A. To release.
- the controller 90 increases and decreases the braking force of the hysteresis brake 51 by controlling the excitation current supplied to the hysteresis brake 51.
- the controller 90 increases and decreases the braking force of the hysteresis brake 51 by controlling the excitation current supplied to the hysteresis brake 51.
- the hysteresis brake 51 is used as the braking unit, but the present invention is not limited to this. Any brake that can increase and decrease the braking force under the control of the control unit 90 can be used.
- other known non-contact brakes such as electromagnetic brakes and contact brakes such as disk brakes can be used.
- the slack eliminating unit 60 is configured to absorb the slack of the fiber bundle F by moving the third roller 63 with respect to the second roller 62 and the fourth roller 64 when the arm 65 swings.
- the configuration of 60 is not limited to this.
- the third roller 63 may be configured to move linearly.
- the FW device 100 including the hoop winding device 30 and the helical winding device 40 has been described.
- the present invention may be applied to a FW device dedicated to hoop winding.
- the filament winding apparatus of the present invention prevents excessive unwinding of the fiber bundle due to fluctuations in the winding speed of the fiber bundle, prevents a decrease in the tension of the fiber bundle wound around the outer peripheral surface of the liner, and a decrease in the strength of the reinforcing layer. This is industrially useful.
Abstract
Description
1S 外周面
10 主基台
11 ライナー移送装置用レール
12 フープ巻き装置用レール
20 ライナー移送装置
21 基台
22 ライナー支持部
23 ライナー支持フレーム
24 支持軸
30 フープ巻き装置
31 基台
32 動力機構
33 フープ巻き掛け装置
34 巻き掛けテーブル
40 ヘリカル巻き装置
41 基台
42 ヘリカル巻き掛け装置
43 第1ヘリカルヘッド
44 第2ヘリカルヘッド
50 ボビン支持部
51 ヒステリシスブレーキ
60 弛み取り部
61 第1ローラ
62 第2ローラ
63 第3ローラ
64 第4ローラ
65 アーム
66 支軸
67 検知部
70A ボビン
71 ガイドローラ
75 繊維供給ガイド
80 フレーム
81 第1フレーム
82 第2フレーム
83 第3フレーム
90 制御部
100 FW装置
Claims (3)
- フープ巻き装置で繊維束をライナー表面に巻き付けるフィラメントワインディング装置であって、
前記フープ巻き装置は、
前記ライナーの中心軸回りに回転する巻き掛けテーブルと、
前記巻き掛けテーブルに設けられ、繊維束のボビンを支持するボビン支持部と、
前記ボビン支持部に支持される前記ボビンの回転を制動する制動部と、
前記ボビンから引き出され、前記ライナー表面に巻き付けられる繊維束の巻き付け速度と、前記ボビンの回転により前記ボビンから解舒される繊維束の解舒速度と、の速度差による弛みを吸収する弛み取り部と、
前記弛み取り部において吸収された弛みが所定量以上であること、及び、前記弛み取り部において吸収された弛みが所定量未満であること、を検知する検知部と、
前記弛み取り部において吸収された弛みが所定量以上であることを検知した前記検知部からの検知信号に基づいて、前記制動部の制動力を増大させ、前記弛み取り部において吸収された弛みが所定量未満であることを検知した前記検知部からの検知信号に基づいて、前記制動部の制動力を減少させる制御部と、
を備えたことを特徴とするフィラメントワインディング装置。 - 請求項1に記載のフィラメントワインディング装置であって、
前記検知部が前記繊維束の過剰な解舒を検知した場合、前記制御部は、前記制動部の制動力を増大させ、前記制動部は、前記ボビンの回転を停止させ、
前記検知部が前記繊維束の過剰な解舒が解消したことを検知した場合、前記制御部は、前記制動部の制動力を減少させ、前記制動部は、前記ボビンの回転の停止を解除させる、
ことを特徴とするフィラメントワインディング装置。 - 請求項1又は2のいずれか1項に記載のフィラメントワインディング装置であって、
前記制動部は、ヒステリシスブレーキを含んでおり、
前記制御部は、前記ヒステリシスブレーキに供給する励磁電流を制御することにより、前記ヒステリシスブレーキの制動力を増大及び減少させる、
ことを特徴とするフィラメントワインディング装置。
Priority Applications (5)
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EP11840734.5A EP2641725B1 (en) | 2010-11-16 | 2011-09-22 | Filament winding apparatus |
US13/885,379 US8955787B2 (en) | 2010-11-16 | 2011-09-22 | Filament winding apparatus |
CN201180054923.XA CN103228426B (zh) | 2010-11-16 | 2011-09-22 | 单纤维卷绕装置 |
JP2012544145A JP5643335B2 (ja) | 2010-11-16 | 2011-09-22 | フィラメントワインディング装置 |
KR1020137014732A KR101463852B1 (ko) | 2010-11-16 | 2011-09-22 | 필라멘트 와인딩 장치 |
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JP2010256184 | 2010-11-16 |
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PCT/JP2011/071625 WO2012066851A1 (ja) | 2010-11-16 | 2011-09-22 | フィラメントワインディング装置 |
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US (1) | US8955787B2 (ja) |
EP (1) | EP2641725B1 (ja) |
JP (1) | JP5643335B2 (ja) |
KR (1) | KR101463852B1 (ja) |
CN (1) | CN103228426B (ja) |
WO (1) | WO2012066851A1 (ja) |
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Also Published As
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EP2641725A1 (en) | 2013-09-25 |
US20130256447A1 (en) | 2013-10-03 |
KR101463852B1 (ko) | 2014-11-21 |
US8955787B2 (en) | 2015-02-17 |
EP2641725A4 (en) | 2016-10-05 |
CN103228426A (zh) | 2013-07-31 |
EP2641725B1 (en) | 2018-03-14 |
KR20130105681A (ko) | 2013-09-25 |
JP5643335B2 (ja) | 2014-12-17 |
JPWO2012066851A1 (ja) | 2014-05-12 |
CN103228426B (zh) | 2015-11-25 |
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