CN117885371B - System and method for high modulus fiber winding forming - Google Patents
System and method for high modulus fiber winding forming Download PDFInfo
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- CN117885371B CN117885371B CN202410294614.9A CN202410294614A CN117885371B CN 117885371 B CN117885371 B CN 117885371B CN 202410294614 A CN202410294614 A CN 202410294614A CN 117885371 B CN117885371 B CN 117885371B
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- 239000000835 fiber Substances 0.000 title claims abstract description 196
- 238000004804 winding Methods 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000007598 dipping method Methods 0.000 claims description 120
- 239000011347 resin Substances 0.000 claims description 45
- 229920005989 resin Polymers 0.000 claims description 45
- 238000013016 damping Methods 0.000 claims description 29
- 239000003292 glue Substances 0.000 claims description 27
- 238000001514 detection method Methods 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 4
- 238000009730 filament winding Methods 0.000 claims description 3
- 239000011825 aerospace material Substances 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 12
- 238000013461 design Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 229920000049 Carbon (fiber) Polymers 0.000 description 6
- 239000004917 carbon fiber Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 6
- 238000012937 correction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- 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
- B29C70/32—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 on a rotating mould, former or core
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
- B29B15/125—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex by dipping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
-
- 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
- B29C70/56—Tensioning reinforcements before or during shaping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention relates to the technical field of aerospace materials, in particular to a system and a method for winding and forming high-modulus fibers. The embodiment of the invention provides a system for winding and forming high-modulus fibers, which comprises a winding and forming device and a tension adjusting device, wherein the winding and forming device is used for carrying out winding and forming treatment on the fibers, and the tension adjusting device is used for respectively adjusting the tension of the fibers at different positions on the winding and forming device. Embodiments of the present invention provide a system and method for high modulus fiber winding forming that reduces fiber fuzzing damage under high tension applied to the fiber.
Description
Technical Field
The invention relates to the technical field of aerospace materials, in particular to a system and a method for winding and forming high-modulus fibers.
Background
The fibers used in the aerospace fiber composite material have the characteristic of high modulus.
In the related art, the fiber composite material is formed by winding fibers. The high modulus fiber winding forming process in the aerospace field is easy to damage under tension, so that the winding tension is controlled to be in a smaller range during the high modulus fiber winding forming process. However, when the spacecraft composite grid member is wound, the node buckling of the cross ribs is regulated and controlled through tension, so that high-tension winding forming is required, and the fiber fluffing damage is inevitably caused.
Accordingly, in response to the above-described deficiencies, there is an urgent need for a system and method for high modulus fiber winding that reduces fuzzing damage to the fibers under high tension applied to the fibers.
Disclosure of Invention
Embodiments of the present invention provide a system and method for high modulus fiber winding forming that reduces fiber fuzzing damage under high tension applied to the fiber.
In a first aspect, an embodiment of the present invention provides a system for winding a high modulus fiber, including a winding device for performing a winding process on the fiber, and a tension adjusting device for adjusting the tension of the fiber at different positions on the winding device, respectively.
In one possible design, the winding device comprises a yarn releasing shaft on which the fiber to be wound is wound, and the tension adjusting device comprises a first torque motor connected with the yarn releasing shaft, and the first torque motor is used for controlling the yarn releasing shaft to wind or feed yarn to adjust the tension of the fiber released by the yarn releasing shaft.
In one possible design, the tension adjusting device further includes a swing arm tension sensor, the swing arm tension sensor is used for testing the tension of the fiber released by the yarn releasing shaft, and the first torque motor is used for adjusting the torque according to the tension tested by the swing arm tension sensor so as to control the tension of the fiber released by the yarn releasing shaft in a first preset range.
In one possible design, the winding and forming device comprises a dipping unit for conveying the fibers and dipping the fibers so that the fibers passing through the dipping unit are dipped in resin, and the tension adjusting device is connected with the dipping unit for adjusting the tension of the fibers of the dipping unit part.
In one possible design, the dipping unit comprises a dipping roller, a dipping tank and a glue extruding roller, resin is arranged in the dipping tank, the bottom of the dipping roller is immersed in the resin, the top of the dipping roller is provided with the glue extruding roller, the dipping roller rotates to dip the resin on the surface of the dipping roller through the glue tank, the fiber is driven by the dipping roller and is immersed in the resin on the dipping roller, the fiber passes between the dipping roller and the glue extruding roller, so that the resin uniformly impregnates the fiber and the resin on the surface of the fiber is removed, the tension adjusting device comprises a second torque motor connected with the dipping roller, and the second torque motor is used for controlling the torque of the dipping roller to adjust the tension of the fiber passing through the dipping roller and controlling the tension of the fiber passing through the dipping roller in a second preset range.
In one possible design, the tension adjusting device further includes a damping roller through which the fiber passes, and a total tension detecting system for total tension of the fiber on the winding forming device, the damping roller being electrically connected to the total tension detecting system, the damping roller being for adjusting tension applied to the fiber according to the total tension detected by the total tension detecting system so that the total tension is equal to a preset total tension.
In one possible design, the damping roller and the total tension detection system are controlled by a PID controller.
In a second aspect, embodiments of the present invention also provide a method for high modulus filament winding, based on any of the above systems, the method comprising:
And respectively adjusting the tension of the fibers at different positions on the winding forming device by using the tension adjusting device.
In one possible design, the winding device comprises a yarn releasing shaft, the yarn releasing shaft is wound with the fiber to be wound and formed, the tension adjusting device comprises a first torque motor, the first torque motor is connected with the yarn releasing shaft, and the first torque motor is used for controlling the yarn releasing shaft to wind or feed yarn so as to adjust the tension of the fiber released by the yarn releasing shaft;
The tension adjusting device is used for respectively adjusting the tension of the fibers at different positions on the winding forming device, and the device comprises:
collecting resistance generated under the working state of the yarn releasing shaft;
And controlling the output torque of the first torque motor according to the resistance of the yarn releasing shaft so as to control the tension of the fiber released by the yarn releasing shaft in a first preset range.
In one possible design, the winding forming device comprises a dipping unit, the dipping unit comprises a dipping roller, a glue tank and a glue extruding roller, resin is arranged in the glue tank, the bottom of the dipping roller is dipped into the resin, the top of the dipping roller is provided with the glue extruding roller, the dipping roller rotates to dip the resin on the surface of the dipping roller through the glue tank, the fiber is driven by the dipping roller and impregnates the resin on the dipping roller, the fiber passes between the dipping roller and the glue extruding roller, so that the resin uniformly impregnates the fiber and removes the superfluous resin on the surface of the fiber, the tension adjusting device comprises a second torque motor, and the second torque motor is connected with the dipping roller and is used for controlling the torque of the dipping roller to adjust the tension of the fiber passing through the dipping roller;
The tension adjusting device is used for respectively adjusting the tension of the fibers at different positions on the winding forming device, and the device comprises:
Collecting rotational resistance generated by rotation of the gum dipping roller in the resin of the gum groove and extrusion resistance generated by extrusion of the gum extrusion roller;
And controlling the output torque of the second torque motor according to the rotation resistance and the extrusion resistance so as to control the tension of the fiber passing through the gum dipping roller in a second preset range.
In one possible design, the first preset range includes 5-10 n, and the second preset range includes 5-10 n.
In one possible design, the tension adjusting device further includes a damping roller and a total tension detecting system, the total tension detecting system is used for detecting the total tension of the fiber on the winding forming device, the damping roller is electrically connected with the total tension detecting system, and the damping roller is used for adjusting the tension applied to the fiber according to the total tension detected by the total tension detecting system so that the total tension is equal to a preset total tension;
The tension applied to the fibers by the damping roller comprises 5-25N, and the preset total tension comprises 35-45N.
Compared with the prior art, the invention has at least the following beneficial effects:
In this embodiment, the tension adjusting device is used to apply tension to different parts of the fiber on the winding device, so that multiple parts of the fiber on the winding device are subjected to a smaller tension, and the overall tension of the whole fiber is larger, so that the preparation of composite material construction requiring the application of a large tension to the fiber can be satisfied.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a system for high modulus filament winding in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of a positioning control system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of another positioning control system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a positioning control system according to another embodiment of the present invention;
FIG. 5 is a schematic view of a fiber bundle deviation state according to an embodiment of the present invention;
Fig. 6 is a schematic diagram of a method for measuring a buckling height of a fiber lay-up node according to an embodiment of the present invention.
In the figure:
1-a yarn box;
2-a yarn releasing shaft;
3-swing arm type tension sensor;
4-guiding rollers;
5-a glue content control device;
6-dipping rolls;
7-a glue extruding roller;
8-a glue groove;
9-damping roller;
10-a total tension detection system;
11-a yarn collecting roller;
12-winding heads;
13-a heating system;
14-a die;
15-a main shaft of a winding machine;
16-fibers;
17-pulleys;
18-winding the vehicle;
100-connecting rods;
101-rotating the rod;
102-a sleeve;
103-a sliding rod;
200-guiding heads;
300-a first angle sensor;
400-a second angle sensor;
500-U-shaped connectors;
600-third angle sensor;
700-fixing seat;
800-spring;
900-bolts.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
In the description of embodiments of the present invention, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance unless explicitly specified or limited otherwise; the term "plurality" means two or more, unless specified or indicated otherwise; the terms "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, it should be understood that the terms "upper", "lower", and the like used in the embodiments of the present invention are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.
In the field of aerospace, the adopted fibers are all high-modulus carbon fibers, such as M40J level, M55J level, M60J level and the like, the high-modulus carbon fibers are larger than glass fibers and T-series high-strength carbon fibers in modulus, the high-modulus carbon fibers are extremely fragile and broken, fuzzing is serious in the winding forming process, and the important reasons for causing fuzzing damage are unstable winding tension and overlarge tension, so that friction exists between the carbon fibers and a yarn guide roller and between the carbon fibers and a winding tension control roller, and various winding main bearing structures of a spacecraft are wound by adopting small tension, wherein the tension is generally 10-20N. However, when the winding forming process is used for preparing the spacecraft composite grid member, the structure is required to regulate and control the node buckling of the crossed ribs through tension, and the tension of the monofilament bundles is required to be controlled to be more than 40N. In order to solve the problem, the invention provides the following technical scheme.
As shown in fig. 1, an embodiment of the present invention provides a system for winding a high modulus fiber 16, which includes a winding device for performing a winding process on the fiber 16, and a tension adjusting device for adjusting the tension of the fiber 16 at different positions on the winding device.
In this embodiment, the tension adjusting device is used to apply tension to different portions of the fiber 16 on the winding device, so that a plurality of portions of the fiber 16 on the winding device are subjected to a smaller tension, and the overall tension of the whole fiber 16 is larger, so that the preparation of a composite material construction requiring a large tension applied to the fiber 16 can be satisfied.
In some embodiments of the invention, the winding device comprises a yarn releasing shaft 2, the yarn releasing shaft 2 is wound with the fiber 16 to be wound and formed, and the tension adjusting device comprises a first torque motor connected with the yarn releasing shaft 2, and the first torque motor is used for controlling the yarn releasing shaft 2 to wind or send yarn to adjust the tension of the fiber 16 released by the yarn releasing shaft 2.
In this embodiment, the winding forming device includes a winding dry fiber 16, a yarn releasing shaft 2 for releasing the fiber 16, where the yarn releasing shaft 2 is a starting position of feeding the fiber 16, and a certain tension needs to be provided, but the tension cannot be too high, if the tension of the fiber 16 at the yarn releasing shaft 2 is large, the unreeled fiber 16 tow falls into a winding layer of the fiber 16 shaft under the action of the tension, and is adhered to the unreeled layer, and when the unreeled tow is stripped from the winding layer, a large amount of fuzzing and wire drawing occur. After the fluffed fiber 16 tows are impregnated, the fluffs are adhered with the roll surface of the impregnation roll 6, the roll surface of the yarn guide roll, the roll surface of the tension roll and the like under the adhesive action of impregnating resin, and the fiber 16 is damaged in a large amount. Thus, less tension is required to be provided to the fibers 16 at the unwind spool. The first torque motor is connected with the unreeling shaft, and can provide forward and reverse torque for the unreeling shaft, so as to adjust the tension applied to the unreeled fiber 16. Further, since the weight of the unwinding shaft is large, the yarn unwinding tension is often more than 10N during unwinding, so that the first torque motor is controlled to provide a forward torque for the unwinding shaft 2, and the torque is applied to balance the resistance of part of the unwinding shaft 2, so that the tension of the fibers 16 released by the unwinding shaft 2 is 5-10N.
In some embodiments of the present invention, the tension adjusting device further includes a swing arm tension sensor 3, the swing arm tension sensor 3 is used for testing the tension of the fiber 16 released by the yarn releasing shaft 2, and the first torque motor is used for adjusting the torque according to the tension tested by the swing arm tension sensor 3 so as to control the tension of the fiber 16 released by the yarn releasing shaft 2 within a first preset range.
In this embodiment, as the fiber 16 is released on the doffer 2, the resistance of the doffer 2 changes due to either the rotation speed or the release. In order to maintain the tension of the fiber 16 released by the yarn releasing shaft 2 at a constant value, a swing arm type tension sensor 3 is provided, the swing arm type tension sensor 3 can detect the tension applied to the fiber 16 released by the yarn releasing shaft 2, and the first torque motor adjusts the output torque according to the tension data detected by the swing arm type tension sensor 3 so as to maintain the tension of the fiber 16 at a constant value at a part of the yarn releasing shaft 2. Specifically, when the tension of the fiber 16 is too high, the swing arm rod swings forwards, the swing angle exceeds the balance point, the first torque motor provides positive rotation torque to actively feed the fiber 16, the tension is reduced, and the swing arm rod is retracted; when the tension of the fiber 16 is too small, the swing arm rod swings backwards, the swing angle exceeds the balance point, the first torque motor provides counter torque to actively wind up, the tension is increased, the swing arm rod is retracted, and the purpose of forward and reverse rotation of the torque motor is to always control the tension of the dry fiber 16 tows within a range of 5-10N, namely a first preset range.
In the present embodiment, a yarn feeding shaft 2 and a swing arm type tension sensor 3 are provided in a yarn case 1.
In some embodiments of the present invention, the winding and forming apparatus includes a dipping unit for conveying the fibers 16 and dipping the fibers 16 to impregnate the fibers 16 passing through the dipping unit with resin, and a tension adjusting device connected to the dipping unit for adjusting the tension of the fibers 16 of the dipping unit portion.
In this embodiment, a dipping unit is connected to the tension adjusting device, and the dipping unit is used for dipping the fibers 16. The tension adjusting means adjusts the tension of the fibers 16 at the impregnation unit such that the tension of the fibers 16 is at a small value.
In some embodiments of the present invention, the dipping unit includes a dipping roller 6, a dipping tank 8 and a squeezing roller 7, resin is disposed in the dipping tank 8, the bottom of the dipping roller 6 is dipped in the resin, the squeezing roller 7 is disposed at the top of the dipping roller 6, the dipping roller 6 rotates to dip the resin on the surface thereof through the dipping tank 8, the fiber 16 is driven through the dipping roller 6 and impregnates the resin on the dipping roller 6, the fiber 16 passes between the dipping roller 6 and the squeezing roller 7 to uniformly impregnate the fiber 16 and remove the excess resin on the surface of the fiber 16, the tension adjusting device includes a second torque motor connected with the dipping roller 6, the second torque motor is used for controlling the torque of the dipping roller 6 to adjust the tension of the fiber 16 passing through the dipping roller 6, and the tension of the fiber 16 passing through the dipping roller 6 is controlled in a second preset range.
In this embodiment, the dipping roller 6 receives resistance of the resin when rotating in the resin, and receives resistance when the fiber 16 passes through the extruding roller 7, in order to allow the fiber 16 to sufficiently impregnate the resin, the fiber 16 needs to be closely attached to the dipping roller 6, and a tension needs to be applied to the fiber 16, but the tension cannot be excessively large, so that in order to ensure that a proper tension is applied to the fiber 16 on the dipping roller 6, a second torque motor is arranged on the dipping roller 6, and the torque of the dipping roller 6 is adjusted by the second torque motor to provide a torque of balanced resistance for the dipping roller 6, so that the tension of the fiber 16 passing through the dipping roller 6 is kept in a proper range, namely a second preset range.
In this embodiment, the winding and shaping apparatus further includes a plurality of guide rollers 4 in order to change the conveying direction of the fibers 16. In order to control the resin amount of the dipping roller 6, the winding forming apparatus further includes a glue content control device 5. The winding forming device further comprises a yarn collecting roller 11, wherein the yarn collecting roller 11 is provided with a yarn collecting tension system, and the yarn collecting tension system is used for collecting the prepreg tows of the winding head 12 of the winding machine during split yarn return and preventing the wound prepreg tows from loosening.
In some embodiments of the present invention, the tension adjustment device further comprises a damper roller 9 and a total tension detection system 10, the fiber 16 passing through the damper roller 9, the total tension detection system 10 being used for winding the total tension of the fiber 16 on the forming device, the damper roller 9 being electrically connected to the total tension detection system 10, the damper roller 9 being used for adjusting the tension applied to the fiber 16 according to the total tension detected by the total tension detection system 10 so that the total tension is equal to a preset total tension.
In this embodiment, the sum of the tensions at the yarn feeding shaft 2 and the dipping roller 6 cannot sufficiently meet the requirement of large tension, so that the total tension applied to the fibers 16 needs to be adjusted according to the actual total tension of the fibers 16 to compensate the total tension applied to the fibers 16 so that the total tension of the fibers 16 is equal to the preset total tension. In order to compensate the tension of the fiber 16, a damping roller 9 is arranged, the fiber 16 passes through the damping roller 9, tension control is carried out by adjusting the moment of the damping roller 9, the size and the direction of the tension specifically provided by the damping roller 9 are determined according to the total tension value detected by the total tension detection system 10, the damping roller 9 adjusts the output moment according to the total tension value detected in real time, and the total tension applied by the fiber 16 is compensated, so that the total tension value is equal to the preset total tension.
The total tension of the fibers 16 is the sum of the tension applied to the fibers 16 in the yarn feeding shaft 2 and the tension applied to the fibers 16 in the impregnation roller.
In this embodiment, the fibers 16 are wound on the die 14 via the winding head 12, and the fibers 16 are heated via the heating system 13 prior to winding on the die 14. The die 14 is provided on a winder spindle 15, and the die 14 can be rotated by the winder spindle 15.
In some embodiments of the invention, the damping roller 9 and the total tension detection system 10 are controlled by a PID controller.
In the embodiment, the PID controller is mature and has wide application.
The embodiment of the invention also provides a method for winding and forming the high-modulus fiber 16, which is based on any one of the systems and comprises the following steps:
the tension of the fibers 16 at different positions on the winding device is adjusted by means of the tension adjusting device, respectively.
In some embodiments of the present invention, the winding and forming device includes a yarn releasing shaft 2, a fiber 16 to be wound and formed is wound on the yarn releasing shaft 2, and the tension adjusting device includes a first torque motor connected with the yarn releasing shaft 2, and the first torque motor is used for controlling the yarn releasing shaft 2 to wind or feed yarn to adjust the tension of the fiber 16 released by the yarn releasing shaft 2;
the tension of the fibers 16 at different positions on the winding and forming device is respectively adjusted by the tension adjusting device, and the tension adjusting device comprises:
Collecting resistance generated in the working state of the yarn releasing shaft 2;
The output torque of the first torque motor is controlled according to the resistance of the payout shaft 2 to control the tension of the fiber 16 released by the payout shaft 2 to be within a first preset range.
In some embodiments of the invention, the winding and forming device comprises a dipping unit, the dipping unit comprises a dipping roller 6, a dipping tank 8 and a glue extruding roller 7, resin is arranged in the dipping tank 8, the bottom of the dipping roller 6 is dipped in the resin, the top of the dipping roller 6 is provided with the glue extruding roller 7, the dipping roller 6 rotates to dip the resin on the surface of the dipping roller 6 through the dipping tank 8, the fiber 16 is driven through the dipping roller 6 and dips the resin on the dipping roller 6, the fiber 16 passes between the dipping roller 6 and the glue extruding roller 7 so as to uniformly dip the fiber 16 and remove the redundant resin on the surface of the fiber 16, the tension adjusting device comprises a second torque motor connected with the dipping roller 6, and the second torque motor is used for controlling the torque of the dipping roller 6 to adjust the tension of the fiber 16 passing through the dipping roller 6;
the tension of the fibers 16 at different positions on the winding and forming device is respectively adjusted by the tension adjusting device, and the tension adjusting device comprises:
Collecting rotation resistance generated by rotation of the dipping roller 6 in the resin of the rubber groove 8 and extrusion resistance generated by extrusion of the extruding roller 7;
The output torque of the second torque motor is controlled according to the rotational resistance and the pressing resistance to control the tension of the fibers 16 passing through the impregnation roller 6 to a second preset range.
In some embodiments of the present invention, the first preset range includes 5 to 10n, and the second preset range includes 5 to 10n.
In some embodiments of the present invention, the tension adjusting device further comprises a damping roller 9 and a total tension detecting system 10, wherein the fiber 16 passes through the damping roller 9, the total tension detecting system 10 is used for winding the total tension of the fiber 16 on the forming device, the damping roller 9 is electrically connected with the total tension detecting system 10, and the damping roller 9 is used for adjusting the tension applied to the fiber 16 according to the total tension detected by the total tension detecting system 10 so that the total tension is equal to the preset total tension;
The tension applied to the fiber 16 by the damping roller 9 is 5 to 25N, and the preset total tension is 35 to 45N.
It should be noted that, the method embodiment and the system embodiment provided by the present invention are based on the same inventive concept, so that the same beneficial effects can be obtained, and specific beneficial effects refer to the system embodiment and are not repeated herein.
The tension control method and the tension control system provided by the application are used for preparing the grid member, except that the tension can influence the quality of the fiber bundle, and in the process that the winding head winds the fiber on the die, the positioning precision is possibly insufficient, so that the preset track wound by the winding head is controlled to be not matched with the actual position of the groove on the die, the quality of the fiber bundle is further influenced, and the quality of the grid member is deteriorated.
In order to solve the above problems, as shown in fig. 2 to 4, an embodiment of the present invention provides a positioning control device for winding and forming a grid member, which is disposed on a winding head 12, wherein the winding head 12 is used for driving a fiber bundle to wind in a groove of a mold 14 along a preset track, the winding head 12 is provided with a pulley 17, and the fiber bundle is output through the groove of the pulley 17;
The positioning regulation and control device comprises a connecting rod 100, the connecting rod 100 is rotatably arranged on a winding head 12 through a rotating shaft, the axis of the rotating shaft of the connecting rod 100 penetrates through the plane where the groove of the pulley 17 is located, one end of the connecting rod 100 is provided with a guide head 200 capable of rotating along the shaft, the guide head 200 is a plate body, the thickness of the guide head 200 is matched with the width of the groove of the die 14, a first angle sensor 300 is arranged on the guide head 200, and when the plane where the guide head 200 is located and the groove of the pulley 17 are located on the same plane, the first angle sensor 300 is set to be 0 value.
In this embodiment, the connecting rod 100 can rotate along its rotation axis, the guide head 200 rotates on the connecting rod 100, the thickness of the guide head 200 matches with the width of the groove of the mold 14, and preferably the thickness of the guide head 200 is 10-500 μm smaller than or equal to the width of the groove of the mold 14. Before the guide head 200 is inserted into the groove of the die 14, when the plane of the guide head 200 is located at the same plane as the groove of the pulley 17, that is, the angle of the guide head 200 is consistent with the yarn releasing angle of the winding head 12, the angle of the first angle sensor 300 is calibrated to be 0. After the guide head 200 is inserted into the groove of the die 14, the direction angle of the guide head 200 is consistent with the direction angle of the groove, if the yarn releasing angle or the preset track of the winding head 12 is inconsistent with the groove of the die 14, the reading of the first angle sensor 300 is not 0, the deviation value of the preset track and the groove of the die 14 can be quantized by the first angle displayed by the first angle sensor 300, and the pose of the winding head 12 can be adjusted according to the reading of the first angle, so that correction can be completed.
In some embodiments of the present invention, the connecting rod 100 may be telescopic in its axial direction to adjust its length.
In the present embodiment, the connecting rod 100 has a length adjustable function, and when positioning correction is required, the guide head 200 is inserted into the groove of the die 14, and in order to accurately measure the deviation angle, the length of the connecting rod 100 is adjusted so that the guide head 200 is located at the doffing point of the winding head 12, and then the first angle is collected.
In this embodiment, in order to reduce the error, the guide head 200 may be controlled by the winding head 12 to slide in the groove of the die 14, the first angle sensor 300 collects a plurality of first angles, calculates an average value of the plurality of first angles, and adjusts the correction winding head 12 and its related device according to the average value obtained by the plurality of first angles.
It should be noted that the position of the doffing point may be calculated according to theory or may be obtained by actual measurement.
In some embodiments of the present invention, the connection rod 100 includes a rotation rod 101 and a sliding rod 103, one end of the rotation rod 101 is rotatably connected to the winding head 12 through a rotation shaft, the rotation rod 101 is provided with a sleeve 102, the sliding rod 103 is inserted into the sleeve 102, and the sliding rod 103 can slide in the sleeve 102 to adjust the length of the connection rod 100.
In this embodiment, in order to ensure that the connecting rod 100 adjusts the length in one straight direction, the connecting rod 100 is designed in a split manner, specifically, the connecting rod 100 includes two parts of a rotating rod 101 and a sliding rod 103, the rotating rod 101 is provided on the winding head 12 through a rotating shaft, and the rotating rod 101 can adjust an angle through the rotating shaft. The rotary rod 101 is provided with a sleeve 102, the sliding rod 103 is penetrated in the sleeve 102, and the length of the connecting rod 100 can be linearly adjusted by adjusting the position of the sliding rod 103 in the sleeve 102.
In some embodiments of the present invention, the connection rod 100 is provided with a second angle sensor 400, and the second angle sensor 400 is used to collect a second angle by which the connection rod 100 rotates along its rotation axis.
In this embodiment, after the first angle is obtained, the offset along the axial direction of the mold 14, that is, the movement distance of the winding vehicle 18 to be moved, can be calculated by the first angle, and the winding vehicle 18 is moved according to the movement distance. After moving the winding carriage 18, it is also necessary to adjust the angle of the winding head 12. Specifically, the doffing point is determined, the guide head 200 is inserted into the recess of the die 14, and at this time, because of the deviation of the angle, the position of the connecting rod 100 does not correspond to the recess of the pulley 17, that is, the axis of the connecting rod 100 is not located in the plane of the recess of the pulley 17, that is, there is an angle deviation between the direction of the output fiber bundle of the recess of the pulley 17 and the direction of the recess, and the winding head 12 is adjusted to make the axis of the connecting rod 100 located in the plane of the recess of the pulley 17. When correcting the angle of the winding head 12, whether the second angle sensor 400 is adjusted in place is determined, specifically, the reading of the second angle sensor 400 with the axis of the connecting rod positioned on the plane where the groove of the pulley 17 is positioned is adjusted to 0 or set to be a standard value, and when adjusting the angle of the winding head 12, the winding head 12 is only required to be adjusted to make the second angle be 0 or set to be the standard value.
It should be noted that, since the winding and forming of the grid member needs to be controlled by the winding carriage 18 and the winding head 12 together, the winding carriage 18 drives the winding head 12 to move along the axis of the columnar die 14, and the winding head 12 adjusts the angle, after the first angle is obtained, the winding carriage 18 and the winding head 12 need to be adjusted respectively.
In some embodiments of the present invention, the pulley 17 is threaded with a shaft body, the shaft body is rotatably connected with the pulley 17, the axis of the shaft body is coincident with the axis of the pulley 17, and the shaft body is rotatably connected with the winding head 12;
The positioning regulation and control device further comprises a U-shaped connecting piece 500, the pulley 17 is located in a groove of the U-shaped connecting piece 500, the U-shaped connecting piece 500 comprises a base and arms arranged at two ends of the base, the connecting rod 100 is arranged on the base of the U-shaped connecting piece 500 through a rotating shaft, the two arms are respectively and fixedly connected to shaft bodies on two sides of the pulley 17, a third angle sensor 600 is arranged on the shaft bodies, and the third angle sensor 600 is used for collecting a third rotating angle of the connecting rod 100 on a plane where the groove of the pulley 17 is located.
In this embodiment, the U-shaped connector 500 and the hinge-type rotating rod 101 cooperate to enable the guide head 200 to rotate about the center of the pulley 17 without interfering with normal yarn feeding of the pulley 17. The two arms of the U-shaped link 500 and the center of the pulley 17 are connected to the winding head 12 through a shaft on which the third angle sensor 600 is provided. The third angle sensor 600 is capable of capturing the angular variation of the relief of the guide head 200 within the recess of the die 14. Further, the third angle collected by the third angle sensor 600 in combination with the length of the connecting rod 100 can calculate the height of node buckling in the groove of the mold 14.
It will be appreciated that in order to avoid the third angle sensor 600 interfering with the yarn feeding operation, the third angle sensor 600 is connected to the shaft along its axis through the winding head 12.
In some embodiments of the present invention, the fixing base 700 is further included, and the fixing base 700 is provided with a spring 800, and the spring 800 is connected with the connecting rod 100, and the spring 800 is used for providing elastic force to enable the guide head 200 to be attached to the bottom of the groove of the die 14 or the surface of the fiber in the groove.
In this embodiment, the spring 800 can provide elastic force to make the guide head 200 always fit with the bottom of the groove of the die 14 or the surface of the fiber in the groove, so as to facilitate measurement.
In some embodiments of the present invention, the fixing base 700 is provided with threads, the connecting rod 100 is provided with threads, and the fixing base 700 is provided with a bolt 900;
When the winding head 12 performs the winding process, the bolt 900 sequentially rotates through the screw thread of the fixing seat 700 and the screw thread of the connecting rod 100, compressing the spring 800 to prevent the guide head 200 from interfering with the winding operation;
when it is desired that the guide head 200 be inserted into the groove of the mold 14, the bolts 900 are threaded out of the threads of the connecting rod 100 to release the guide head 200 for positional adjustment and testing.
In the present embodiment, the different operation modes can be switched by releasing the connection rod 100 by the bolt 900 or tightening the compression connection rod 100.
The embodiment of the invention provides a positioning regulation method for winding and forming a grid member, which is based on any positioning regulation device and comprises the following steps:
Inserting the guide head 200 into the recess of the die 14;
the winding head 12 is utilized to drive the guide head 200 to slide in the groove of the die 14;
Acquiring a first angle of the first angle sensor 300;
the preset moving trajectory of the winding head 12 is corrected according to the first angle.
In some embodiments of the present invention, the winding head 12 is driven by a winding carriage 18;
After inserting the guide head 200 into the groove of the die 14, before sliding the guide head 200 in the groove of the die 14 with the winding head 12, further comprising:
Adjusting the length of the connecting rod 100 so that the guide head 200 is centered at the fiber bundle doffing point;
correcting the preset movement trajectory of the winding head 12 according to the first angle includes:
Determining a moving distance according to the connecting distance and the first angle; wherein, the connection distance is the distance between the guide head 200 on the connecting rod 100 and the rotating shaft of the connecting rod 100;
Moving the winding carriage 18 according to the moving distance;
the center of the guide head 200 is positioned at the fiber bundle doffing point of the groove of the die 14;
The rotating winding head 12 adjusts the angle of the connecting rod 100 so that its axis is located in the plane of the groove of the pulley 17.
Referring to fig. 5, in some embodiments of the present invention, the moving distance is calculated by the following formula:
S=L*sinβ/sink
wherein S is a moving distance, L is a connecting distance, beta is a first angle, and k is a winding angle of the spiral rib;
Moving the winding carriage 18 according to the moving distance includes:
if S is positive, the winding carriage 18 moves in the negative axial direction of the die 14;
If S is negative, the winding carriage 18 moves in the positive direction in the axial direction of the die 14; wherein the mold 14 rotates along the axis, one end of the mold 14 rotating counterclockwise is a positive direction, and one end of the mold 14 rotating clockwise is a negative direction.
In this embodiment, the winding angle of the spiral rib is a design value of the grid spiral rib, and includes an included angle between the groove and the axis of the die 14.
In some embodiments of the present invention, the connecting rod 100 is provided with a second angle sensor 400, and the second angle sensor 400 is used for acquiring a second angle of rotation of the connecting rod 100 along the rotation axis thereof;
rotating the winding head 12 adjusts the angle of the connecting rod 100 so that its axis is located in the plane of the groove of the pulley 17, including:
rotating the winding head 12 to adjust the angle of the connecting rod 100 so that the second angle is a correction value; the correction value is the angle of the second angle sensor 400 when the axis of the connecting rod 100 is located in the plane of the groove of the pulley 17.
Referring to fig. 6, in some embodiments of the present invention, a pulley 17 is provided with a shaft body in a penetrating manner, the shaft body is rotatably connected with the pulley 17, the axis of the shaft body is coincident with the axis of the pulley 17, and the shaft body is rotatably connected with the winding head 12;
The positioning regulation device further comprises a U-shaped connecting piece 500, the pulley 17 is positioned in a groove of the U-shaped connecting piece 500, the U-shaped connecting piece 500 comprises a base and arms arranged at two ends of the base, the connecting rod 100 is arranged on the base of the U-shaped connecting piece 500 through a rotating shaft, the two arms are respectively and fixedly connected to shaft bodies at two sides of the pulley 17, a third angle sensor 600 is arranged on the shaft bodies, and the third angle sensor 600 is used for collecting a third angle of rotation of the connecting rod 100 on a plane where the groove of the pulley 17 is positioned;
the positioning regulation method further comprises the following steps:
controlling the guide head 200 to slide on the surface of the fiber bundle in the groove of the die 14, and collecting a plurality of third angles at the same time;
the buckling height of the fiber bundle node is determined according to the following formula:
H=L*sinn1- L*sinnx
Where H is the height of node buckling, n1 is the value of the third angle sensor 600 when the guide head 200 is located at the plane portion of the fiber Shu Puceng, nx is the value of the third angle sensor 600 when the guide head 200 is located at the node buckling, and L is the distance between the guide head 200 on the connecting rod 100 and the rotating shaft of the connecting rod 100.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The system for winding and forming the high-modulus fiber is characterized by comprising a winding and forming device and a tension adjusting device, wherein the winding and forming device is used for performing winding and forming treatment on the fiber, and the tension adjusting device is used for respectively adjusting the tension of the fiber at different positions on the winding and forming device;
The winding forming device comprises a yarn releasing shaft, the yarn releasing shaft is wound with fibers to be wound and formed, the tension adjusting device comprises a first torque motor, the first torque motor is connected with the yarn releasing shaft, and the first torque motor is used for controlling the yarn releasing shaft to wind or feed yarns so as to adjust the tension of the fibers released by the yarn releasing shaft;
The tension adjusting device further comprises a swing arm type tension sensor, wherein the swing arm type tension sensor is used for testing the tension of the fiber released by the yarn releasing shaft, and the first torque motor is used for adjusting the torque according to the tension tested by the swing arm type tension sensor so as to control the tension of the fiber released by the yarn releasing shaft in a first preset range;
The winding forming device comprises a dipping unit, a tension adjusting device and a winding forming device, wherein the dipping unit is used for conveying fibers and performing dipping treatment on the fibers so that the fibers passing through the dipping unit are dipped in resin, and the tension adjusting device is connected with the dipping unit and used for adjusting the tension of the fibers of the dipping unit part;
The dipping unit comprises a dipping roller, a dipping tank and a glue extrusion roller, wherein resin is arranged in the dipping tank, the bottom of the dipping roller is immersed in the resin, the top of the dipping roller is provided with the glue extrusion roller, the dipping roller rotates to dip the resin on the surface of the dipping roller through the glue tank, fibers are driven by the dipping roller and dip the resin on the dipping roller, the fibers pass through the space between the dipping roller and the glue extrusion roller, so that the fibers are uniformly immersed by the resin and the superfluous resin on the surface of the fibers is removed, the tension adjusting device comprises a second torque motor, the second torque motor is connected with the dipping roller, and the second torque motor is used for controlling the torque of the dipping roller to adjust the tension of the fibers passing through the dipping roller, so that the tension of the fibers passing through the dipping roller is controlled in a second preset range;
The tension adjusting device further comprises a damping roller and a total tension detecting system, the fibers penetrate through the damping roller, the total tension detecting system is used for detecting the total tension of the fibers on the winding forming device, the damping roller is electrically connected with the total tension detecting system, and the damping roller is used for adjusting the tension applied to the fibers according to the total tension detected by the total tension detecting system so that the total tension is equal to the preset total tension.
2. The system of claim 1, wherein the damping roller and the total tension detection system are controlled by a PID controller.
3. A method for high modulus filament winding forming, characterized in that the method comprises, based on the system of any of claims 1-2:
And respectively adjusting the tension of the fibers at different positions on the winding forming device by using the tension adjusting device.
4. A method according to claim 3, wherein the winding forming device comprises a yarn releasing shaft on which the fiber to be wound is wound, and the tension adjusting device comprises a first torque motor connected to the yarn releasing shaft, the first torque motor being used for controlling the yarn releasing shaft to wind or feed yarn to adjust the tension of the fiber released by the yarn releasing shaft;
The tension adjusting device is used for respectively adjusting the tension of the fibers at different positions on the winding forming device, and the device comprises:
collecting resistance generated under the working state of the yarn releasing shaft;
And controlling the output torque of the first torque motor according to the resistance of the yarn releasing shaft so as to control the tension of the fiber released by the yarn releasing shaft in a first preset range.
5. The method of claim 4, wherein the winding forming device comprises a dipping unit, the dipping unit comprises a dipping roller, a glue tank and a glue squeezing roller, resin is arranged in the glue tank, the bottom of the dipping roller is immersed in the resin, the top of the dipping roller is provided with the glue squeezing roller, the dipping roller rotates to dip the resin through the glue tank on the surface, the fiber is driven by the dipping roller and impregnates the resin on the dipping roller, the fiber passes between the dipping roller and the glue squeezing roller, so that the resin uniformly impregnates the fiber and removes the resin superfluous on the surface of the fiber, and the tension adjusting device comprises a second torque motor connected with the dipping roller, and the second torque motor is used for controlling the torque of the dipping roller to adjust the tension of the fiber passing through the dipping roller;
The tension adjusting device is used for respectively adjusting the tension of the fibers at different positions on the winding forming device, and the device comprises:
Collecting rotational resistance generated by rotation of the gum dipping roller in the resin of the gum groove and extrusion resistance generated by extrusion of the gum extrusion roller;
And controlling the output torque of the second torque motor according to the rotation resistance and the extrusion resistance so as to control the tension of the fiber passing through the gum dipping roller in a second preset range.
6. The method of claim 5, wherein the first predetermined range comprises 5-10 n and the second predetermined range comprises 5-10 n.
7. A method according to claim 3, wherein the tension adjustment device further comprises a damping roller and a total tension detection system, the total tension detection system being for the total tension of the fibers on the winding device, the damping roller being electrically connected to the total tension detection system, the damping roller being for adjusting the tension applied to the fibers in accordance with the total tension detected by the total tension detection system such that the total tension is equal to a preset total tension;
The tension applied to the fibers by the damping roller comprises 5-25N, and the preset total tension comprises 35-45N.
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| EP0292266A2 (en) * | 1987-05-18 | 1988-11-23 | Sumitomo Chemical Company, Limited | Spreading fibre bundle |
| CN206521159U (en) * | 2017-02-28 | 2017-09-26 | 浙江精功科技股份有限公司 | A kind of identical tension winding system of carbon fiber tank body wrapping machine |
| CN107877836A (en) * | 2017-10-19 | 2018-04-06 | 北京航空航天大学 | A kind of carbon fiber winding machine technological parameter regulating system and tension adjustment |
| CN112873907A (en) * | 2020-12-31 | 2021-06-01 | 上海邦临管道工程技术有限公司 | Glass fiber tape production equipment and method |
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2024
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0292266A2 (en) * | 1987-05-18 | 1988-11-23 | Sumitomo Chemical Company, Limited | Spreading fibre bundle |
| CN206521159U (en) * | 2017-02-28 | 2017-09-26 | 浙江精功科技股份有限公司 | A kind of identical tension winding system of carbon fiber tank body wrapping machine |
| CN107877836A (en) * | 2017-10-19 | 2018-04-06 | 北京航空航天大学 | A kind of carbon fiber winding machine technological parameter regulating system and tension adjustment |
| CN112873907A (en) * | 2020-12-31 | 2021-06-01 | 上海邦临管道工程技术有限公司 | Glass fiber tape production equipment and method |
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