CN103707521A - Device and method for forming variable cross-section thin-wall conical carbon fiber perform - Google Patents
Device and method for forming variable cross-section thin-wall conical carbon fiber perform Download PDFInfo
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- CN103707521A CN103707521A CN201310713311.8A CN201310713311A CN103707521A CN 103707521 A CN103707521 A CN 103707521A CN 201310713311 A CN201310713311 A CN 201310713311A CN 103707521 A CN103707521 A CN 103707521A
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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
- B29C70/30—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Abstract
The invention discloses a device and a method for forming variable cross-section thin-wall conical carbon fiber perform and aims at solving the technical problem of a complex method for forming a variable cross-section thin-wall conical carbon fiber perform by using a current carbon fiber perform forming device. Due to the design of a winding die and design philosophies of paving along with the die, winding and shaping, locating a core die, sewing locally, weaving and reinforcing, the forming device is capable of low-cost continuous preparation of a carbon fiber reinforced composite conical variable cross-section thin-wall part perform body; the method is simple; according to the forming method, four processes of paving, winding, sewing and weaving the fiber are continuously performed on the same device, so that the forming difficulty of the variable cross-section thin-wall conical carbon fiber perform is prominently reduced; in the preparation process, process parameters with influence on reinforced body forming quality and the wall thickness of the perform can be controlled in real time. Compared with the background art, no special expensive equipment is needed in the method; the method is capable of forming freely according to the shape of the needed perform.
Description
Technical field
The present invention relates to a kind of prefabricated carbon fiber body forming device, particularly a kind of variable cross-section thin-walled taper prefabricated carbon fiber body forming device.Also relate to the variable cross-section thin-walled taper carbon fabric perform forming method that utilizes this device.
Background technology
Carbon fibre reinforced composite has specific strength, specific modulus is high, anti-fatigue performance is good, and thermal coefficient of expansion is low, and the advantage such as fail safety performance is good, become the strong competitor in lightweight, high performance structures material, in fields such as Aero-Space, automobile, electronics, be with a wide range of applications.Prefabricated carbon fiber preparation process and method have determined the overall performance of composite to a great extent, along with the expansion of carbon fibre reinforced composite range of application, it is also more outstanding that variable cross-section thin-walled pyramidal structure precast body moulding difficulty is large, specification requirement is high, manufacturing cost is crossed the problems such as height.According to statistics, composite element manufacturing cost accounts for 60%～70% of its totle drilling cost, and precast body preparation accounts for 25% left and right of composite element cost.Low-cost precast body technology of preparing becomes one of key problem of current field of compound material developmental research, and particularly also to precast body, preparation has brought new challenge to the structural complexity of composite variable cross-section thin-walled Tapered Cup.
It is mostly that carbon fibre fabric laying and carbon fibre web tire laying are alternately laid that traditional laying suture way is prepared precast body, then acupuncture strengthens, use carbon fibre web tire laying often to prepare thicker precast body, cannot reach the requirement of thin wall parts, and adopting precast body prepared by this method laying is mostly simple flat board or non-distortion tubular construction etc., the more difficult formation that realizes variable cross-section precast body.For special-shaped variable cross-section precast body, conventionally adopt braiding or winding shaping, weave shaping precursor structure is complete, but in braiding process, carbon fiber bending is serious, and precast body overall structure performance declines, and the method manufacturing cycle is long; The winding method shaping precast body Complex Different Shape variable cross-section that can be shaped, forming efficiency is high, but winding shaping needs special expensive Wiring apparatus, and technical value added content is high, and instructions for use is high, and cost is high; How to prepare cheaply thin-walled variable cross-section precast body and become a key prepared by precast body.
China Patent Publication No. CN102173846 A has announced " a kind of manufacture method of optical telescope C/C composite lens barrel ", this invention adopts carbon fibre fabric and carbon fibre web tire along the circumferential direction to carry out 0 ° on cylindric lens barrel moulding core, 90 ° of modes that replace laying are carried out laying, and corresponding formation replaces by carbon fibre fabric laying and carbon fibre web tire laying the three-dimensional C/C composite preform of laying, in the precast body obtaining, between adjacent carbon fibre fabric laying and carbon fibre web tire laying, by radial needle, sting and strengthen, it is simple that the method is prepared precast body method, but it is only applicable to prepare cylindrical member, preparation for variable cross-section conical thin-wall precast body, simple by 0 °, carbon fibre fabric and carbon fibre web tire, 90 ° replace the progressive forming that lay cannot be realized conical section, moreover, the precast body of being prepared by carbon fibre fabric and net tire laying is thicker, cannot realize the shaping of thin-wall member.
For the preparation of variable cross-section thin-walled precast body, prior art is mainly to adopt braiding and winding shaping, but the problem that weave shaping precast body exists is, manufacturing cycle is long, and efficiency is low, and fiber bending is serious, affects the overall performance of precast body.Winding method shaping precast body efficiency is high, but the problem of its existence is, winding shaping needs special expensive Wiring apparatus, and technical value added content is high, and instructions for use is high, and cost is high.How low-cost, the variable cross-section thin-walled taper precast body of preparing of greater efficiency becomes a key issue prepared by precast body.
Summary of the invention
In order to overcome the deficiency of existing prefabricated carbon fiber body forming device moulding variable cross-section thin-walled taper prefabricated carbon fiber body method complexity, the invention provides a kind of variable cross-section thin-walled taper prefabricated carbon fiber body forming device.This device is wound around mould by design, employing covers, is wound around according to mould paving the design concept that sizing, core location, local stitching and braiding are reinforced, and this shaped device can be realized the preparation of low-cost continuous carbon fibre reinforced composite taper variable cross-section thin-wall part precast body.This shaped device collection fiber placement, winding, stitching, braiding advantage, four kinds of techniques are concentrated on same device and carried out continuously, the moulding difficulty that significantly reduces variable cross-section thin-walled taper carbon fabric perform, preparation process can be controlled in real time on affecting technological parameter and the precast body wall thickness of reinforcement forming quality.When forming method of the present invention effectively solves direct laying by the winding tension in winding process, between tissue layer, laminating is not tight, and fibre reinforcement is loose, the problem that product volume mark is low; The taper variable cross-section thin-wall part precast body good stability of the dimension of institute's moulding, the good mechanical performance of empirical evidence the method forming cone deformation cross section thin-walled precast body composite.
The present invention also provides this cross section thin-walled taper carbon fabric perform forming method.
The technical solution adopted for the present invention to solve the technical problems: a kind of variable cross-section thin-walled taper prefabricated carbon fiber body forming device, is characterized in: comprise base plate 1, left support plate 2, right support plate 3, be wound around mould 4, left axle head 5, right axle head 6, bearing 7, gear train 8, leading screw 9, connecting rod 10, to silk mouthfuls 11, rocking bar 12, cam 13, slideway 14, top shoe 15, sliding block 16, upper heald rod 17, lower heald rod 18, retainer ring 19, push rod 20 with insert 21; Described left support plate 2 and right support plate 3 adopt respectively the two ends, left and right that are bolted to base plate 1, are wound around mould 4 top and bottoms and are processed with screwed hole, are connected respectively with left axle head 5 with the threaded one end of right axle head 6; The barrel that is wound around mould 4 is distributed with 24 grooves, 24 groove equispaceds, barrel inside is processed with four slideways, and corresponding to the shell portion groove milling of slideway moving line, inserting 21 is T word shape, insert for four and 21 be installed on respectively on 4 slideways that are wound around mould 4 inside, 21 bottom surfaces of inserting are inclined-plane, and equally spaced backstay has been assigned at 21 tops of inserting, and push rod 20 equates with the 21 groups of bottom surface gradients of inserting, by manual adjustments push rod 20 axial feedings, control backstay height; The other end of left axle head 5 coordinates with the bearing 7 being fixed on left support plate 2; Cam 13 is arranged on the other end of right axle head 6, has the slideway 14 of two sinusoidal shapes on the periphery of cam 13; Upper heald rod 17 and lower heald rod 18 forms heald rods, and heald rod has eight groups, and the upper heald rod 17 in every group is controlled odd number root fiber movements, and lower heald rod 18 is controlled even number root fiber movements; Top shoe 15 and sliding block 16 form slide block, slide block has eight groups, upper heald rod 17 is fixing with top shoe 15, lower heald rod 18 is fixing with sliding block 16, coordinate with the interporal lacuna of top shoe 15, retainer ring 19 is arranged on base plate 1, and eight columns on its surface coordinate with the interporal lacuna of sliding block 16, and at upper and lower two slideways 14, the circumferential rotation along with cam 13 slides up and down respectively for top shoe 15 and sliding block 16; Driving tooth in right 6 while of axle head mounting teeth wheels 8, the other end of right axle head 6 be fixed on the bearing fit on right support plate 3, driven tooth in gear train 8 is fixed on leading screw 9, closely mesh with driving tooth, screw mandrel 9 two ends coordinate with left support plate 2 and right support plate 3 respectively, there is screw thread at connecting rod 10 two ends, use nut to be fixed on left support plate 2 and right support plate 3, give silk mouthful 11 bottoms and screw mandrel 9 threaded engagement, middle part and connecting rod 10 matched in clearance, the movement locus of silk mouth 11 is given in screw mandrel 9 and the common constraint of connecting rod 10, and rocking bar 12 is fixedly connected with right axle head 6.
A variable cross-section thin-walled taper carbon fabric perform forming method that adopts said apparatus, is characterized in comprising the following steps:
Step 1: ground floor is used carbon fiber one-way cloth to cover along mould paving; Carbon fiber one-way cloth is cut into rectangle according to variable cross-section thin-walled taper precast body size, fiber direction is axially consistent with variable cross-section thin-walled taper precast body, according to cylindrical section, conical cylinder section, upper and lower flange dimension cutting unidirectional cloth, make it along being wound around mould 4 pavings, cover the complete shape that a circle forms variable cross-section thin-walled taper precast body; Upper flange part, along unidirectional cloth fiber axis to cutting into small fragment, inwardly turnover forms flange reinforced partly body piecemeal, and lower flange outwards turns down, and then with fibre bundle, sews up it is fitted tightly on winding mould 4;
Step 2: the second layer is used fibre bundle hoop to be wound around sizing; The silk thread feeding that fibre bundle is wound around in type-approval process adopts gear-screw mechanism quantitatively to control, and by change gear ratio, guide screw lead, realizes different winding forms; Fibre bundle is fixed on to cylindrical section bottom, manual rotation rocking bar 12 drives and is wound around mould 4 rotations, and driving tooth rotates with the axis, and drives driven tooth to rotate, leading screw 9 is converted into the axially-movable to silk mouth 11 by rotation, when being wound around mould 4 rotations, is with kinetodesma to pave uniformly on outer wall; The number of teeth of setting driving tooth equates with driven tooth, and the helical pitch of leading screw 9 equals fibre bundle width, that is: fibre bundle hoop winding one is enclosed, the distance of the fibre bundle width of axially passing by; Be wound to conical cylinder section, manual adjustments push rod 20 axial feedings, control backstay height, the silk thread damage of avoiding the silk thread landing that causes because of backstay insufficient height and backstay excessive height to cause, be wound to end anchoring fiber bundle, complete the sizing of fibre bundle uniform winding;
Step 3: step 1, step 2 hocket; Odd-level is used carbon fiber one-way cloth to cover along mould paving, and even level is used fibre bundle hoop to be wound around sizing, until reach variable cross-section thin-walled taper precast body required thickness, often carries out before next step operation, and manual adjustments push rod 20 axial feedings, control backstay height;
Step 4: use fibre bundle to carry out improvement type locking-type high density to variable cross-section thin-walled taper precast body and radially sew up, sewing density is controlled at 5～17 pins/cm
2;
Step 5: fibre bundle control of two-dimensional braided, realize precast body top layer and reinforce; Cut out fibre bundle as axial direction fibre from precast body Base top contact, the low side of odd number fibre bundle is fixed in upper heald rod 17, in the lower heald rod 18 that even number fibre bundle is fixed on the same group, in cam rotation process, between even number fibre bundle and odd number fibre bundle, produce a difference in height, parallel passes between odd even fibre bundle, completes hoop for the first time and is wound around, and is rotated further rocking bar, odd even fiber up-down alternative motion, reinforces until complete the outermost braiding of reinforcement.
The invention has the beneficial effects as follows: this device is wound around mould by design, employing covers, is wound around according to mould paving the design concept that sizing, core location, local stitching and braiding are reinforced, and this shaped device can be realized the preparation of low-cost continuous carbon fibre reinforced composite taper variable cross-section thin-wall part precast body.This shaped device collection fiber placement, winding, stitching, braiding advantage, four kinds of techniques are concentrated on same device and carried out continuously, the moulding difficulty that significantly reduces variable cross-section thin-walled taper carbon fabric perform, preparation process can be controlled in real time on affecting technological parameter and the precast body wall thickness of reinforcement forming quality.When forming method of the present invention effectively solves direct laying by the winding tension in winding process, between tissue layer, laminating is not tight, and fibre reinforcement is loose, the problem that product volume mark is low; The taper variable cross-section thin-wall part precast body good stability of the dimension of institute's moulding, the good mechanical performance of empirical evidence the method forming cone deformation cross section thin-walled precast body composite.Compare with background technology, the method is without special-purpose expensive device, by required precast body form free forming.
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated.
Accompanying drawing explanation
Fig. 1 is the structural representation of variable cross-section thin-walled taper prefabricated carbon fiber body forming device of the present invention.
Fig. 2 is the enlarged drawing that is wound around mould in Fig. 1.
In figure, 1-base plate, 2-left support plate, 3-right support plate, 4-is wound around mould, the left axle head of 5-, the right axle head of 6-, 7-bearing, 8-gear train, 9-leading screw, 10-connecting rod, 11-gives silk mouthful, 12-rocking bar, 13-cam, 14-slideway, 15-top shoe, 16-sliding block, the upper heald rod of 17-, heald rod under 18-, 19-retainer ring, 20-push rod, 21-inserts.
The specific embodiment
Following examples are with reference to Fig. 1-2.
Device embodiment: variable cross-section thin-walled taper prefabricated carbon fiber body forming device of the present invention, comprise base plate 1, left support plate 2, right support plate 3, be wound around mould 4, left axle head 5, right axle head 6, bearing 7, gear train 8, leading screw 9, connecting rod 10, to silk mouthfuls 11, rocking bar 12, cam 13, slideway 14, top shoe 15, sliding block 16, upper heald rod 17, lower heald rod 18, retainer ring 19, push rod 20 with insert 21; Described left support plate 2 and right support plate 3 adopt respectively the two ends, left and right that are bolted to base plate 1, are wound around mould 4 top and bottoms and are processed with screwed hole, are connected respectively with left axle head 5 with the threaded one end of right axle head 6; The barrel that is wound around mould 4 is distributed with 24 grooves, 24 groove equispaceds, barrel inside is processed with four slideways, and corresponding to the shell portion groove milling of slideway moving line, inserting 21 is T word shape, insert for four and 21 be installed on respectively on 4 slideways that are wound around mould 4 inside, 21 bottom surfaces of inserting are inclined-plane, and equally spaced backstay has been assigned at 21 tops of inserting, and push rod 20 equates with the 21 groups of bottom surface gradients of inserting, by manual adjustments push rod 20 axial feedings, control backstay height; The other end of left axle head 5 coordinates with the bearing 7 being fixed on left support plate 2; Cam 13 is arranged on the other end of right axle head 6, has the slideway 14 of two sinusoidal shapes on the periphery of cam 13; Upper heald rod 17 and lower heald rod 18 forms heald rods, and heald rod has eight groups, and the upper heald rod 17 in every group is controlled odd number root fiber movements, and lower heald rod 18 is controlled even number root fiber movements; Top shoe 15 and sliding block 16 form slide block, slide block has eight groups, upper heald rod 17 is fixing with top shoe 15, lower heald rod 18 is fixing with sliding block 16, coordinate with the interporal lacuna of top shoe 15, retainer ring 19 is arranged on base plate 1, and eight columns on its surface coordinate with the interporal lacuna of sliding block 16, and at upper and lower two slideways 14, the circumferential rotation along with cam 13 slides up and down respectively for top shoe 15 and sliding block 16; Driving tooth in right 6 while of axle head mounting teeth wheels 8, the other end of right axle head 6 be fixed on the bearing fit on right support plate 3, driven tooth in gear train 8 is fixed on leading screw 9, closely mesh with driving tooth, screw mandrel 9 two ends coordinate with left support plate 2 and right support plate 3 respectively, there is screw thread at connecting rod 10 two ends, use nut to be fixed on left support plate 2 and right support plate 3, give silk mouthful 11 bottoms and screw mandrel 9 threaded engagement, middle part and connecting rod 10 matched in clearance, the movement locus of silk mouth 11 is given in screw mandrel 9 and the common constraint of connecting rod 10, and rocking bar 12 is fixedly connected with right axle head 6.
Embodiment of the method 1:
A continuous carbon fibre variable cross-section thin-walled taper precast body manufacture method, selects 12K carbon fiber one-way cloth, 3K carbon fiber bundle, and lay is wound around totally 11 layers of braidings.
Step 1: ground floor is used 12K one-way fiber fabric to cover along mould paving.12K carbon fiber one-way cloth is cut into rectangle according to variable cross-section thin-walled taper precast body size, fiber direction is axially consistent with variable cross-section thin-walled taper precast body, according to cylindrical section, conical cylinder section, upper and lower flange dimension cutting 12K carbon fiber one-way cloth, make it along being wound around mould 4 pavings, cover the complete shape that a circle can form variable cross-section thin-walled taper precast body.Upper flange part, axially cuts into small fragment along 12K carbon fiber one-way measuring fiber, and inside turnover forms flange partial precast body piecemeal, and lower flange is outwards turnover in like manner, then with 3K carbon fiber bundle, sews up it is fitted tightly on winding mould 4.
Step 2: the second layer is used 3K carbon fiber bundle hoop to be wound around sizing.3K carbon fiber bundle is fixed on to cylindrical section bottom, manual rotation rocking bar 12 drives and is wound around mould 4 rotations, and driving tooth rotates with the axis, and drives driven tooth to rotate, leading screw 9 is the axially-movable of Give silk mouth 11 by turning of rotation, when being wound around mould 4 rotations, drives 3K carbon fiber bundle to pave on outer wall uniformly.Be wound to conical cylinder section, manual adjustments push rod 20 axial feedings, control backstay height, the silk thread damage of avoiding the silk thread landing that causes because of backstay insufficient height and backstay excessive height to cause, be wound to end anchoring fiber bundle, complete the sizing of 3K carbon fiber bundle uniform winding.
Step 3: the step 1 that hockets, step 2.Odd-level is used 12K carbon fiber one-way cloth to cover along mould paving, laying is 5 layers altogether, even level is used 3K carbon fiber bundle hoop to be wound around sizing, be wound around altogether 5 circles, reach variable cross-section thin-walled taper precast body required thickness, often carry out before next step operation, manual adjustments push rod 20 axial feedings, control backstay height.
Step 4: the local stitching of variable cross-section thin-walled taper precast body strengthened.Use 3K carbon fiber bundle to carry out improvement type locking-type high density to variable cross-section thin-walled taper precast body and radially sew up, sewing density is controlled at 5～17 pins/cm
2.
Step 5: cut out 3K carbon fiber bundle as axial direction fibre from precast body Base top contact, the low side of odd number carbon fiber bundle is fixed in upper heald rod 17, even carbon fibre bundle is fixed and descends on the same group in heald rod 18, in cam 13 rotation processes, between even carbon fibre bundle and odd number carbon fiber bundle, produce a difference in height, parallel passes between odd even carbon fiber bundle, completes hoop for the first time and is wound around, and is rotated further rocking bar 12, odd even carbon fiber up-down alternative motion, reinforces until complete the outermost braiding of reinforcement.
Embodiment of the method 2:
A continuous carbon fibre variable cross-section thin-walled taper precast body manufacture method, selects 6K carbon fiber one-way cloth, 6K carbon fiber bundle, and lay is wound around totally 15 layers of braidings.
Step 1: ground floor is used 6K carbon fiber one-way cloth to cover along mould paving.6K carbon fiber one-way cloth is cut into rectangle according to variable cross-section thin-walled taper precast body size, fiber direction is axially consistent with variable cross-section thin-walled taper precast body, according to cylindrical section, conical cylinder section, upper and lower flange dimension cutting carbon fiber one-way cloth, make it along being wound around mould 4 pavings, cover the complete shape that a circle can form variable cross-section thin-walled taper precast body.Upper flange part, axially cuts into small fragment along 6K carbon fiber one-way measuring fiber, and inside turnover forms flange partial precast body piecemeal, and lower flange is outwards turnover in like manner, then with 3K carbon fiber bundle, sews up it is fitted tightly on winding mould 4.
Step 2: the second layer is used 6K carbon fiber bundle hoop to be wound around sizing.Fibre bundle is fixed on to cylindrical section bottom, manual rotation rocking bar 12 drives and is wound around mould 4 rotations, and driving tooth rotates with the axis, and drives driven tooth to rotate, leading screw 9 is the axially-movable of Give silk mouth 11 by turning of rotation, when being wound around mould 4 rotations, drives 6K carbon fiber bundle to pave on outer wall uniformly.Be wound to conical cylinder section, manual adjustments push rod 20 axial feedings, control backstay height, the silk thread damage of avoiding the silk thread landing that causes because of backstay insufficient height and backstay excessive height to cause, be wound to fixedly 6K carbon fiber bundle of end, complete the sizing of 6K carbon fiber bundle uniform winding.
Step 3: the step 1 that hockets, step 2.Odd-level is used 6K carbon fiber one-way cloth to cover along mould paving, laying is 7 layers altogether, even level is used 6K carbon fiber bundle hoop to be wound around sizing, be wound around altogether 7 circles, reach variable cross-section thin-walled taper precast body required thickness, often carry out before next step operation, manual adjustments push rod 20 axial feedings, control backstay height.
Step 4: the local stitching of variable cross-section thin-walled taper precast body strengthened.Use 6K carbon fiber bundle to carry out improvement type locking-type high density to variable cross-section thin-walled taper precast body and radially sew up, sewing density is controlled at 5～17 pins/cm
2.
Step 5: cut out 3K carbon fiber bundle as axial direction fibre from precast body Base top contact, the low side of odd number carbon fiber bundle is fixed in upper heald rod 17, even carbon fibre bundle is fixed and descends on the same group in heald rod 18, in cam 13 rotation processes, between even carbon fibre bundle and odd number carbon fiber bundle, produce a difference in height, parallel passes between odd even carbon fiber bundle, completes hoop for the first time and is wound around, and is rotated further rocking bar 12, odd even carbon fiber up-down alternative motion, reinforces until complete the outermost braiding of reinforcement.
Claims (2)
1. a variable cross-section thin-walled taper prefabricated carbon fiber body forming device, is characterized in that: comprise base plate (1), left support plate (2), right support plate (3), be wound around mould (4), left axle head (5), right axle head (6), bearing (7), gear train (8), leading screw (9), connecting rod (10), to silk mouthful (11), a rocking bar (12), cam (13), slideway (14), top shoe (15), sliding block (16), upper heald rod (17), lower heald rod (18), retainer ring (19), push rod (20) and insert (21), described left support plate (2) and right support plate (3) adopt respectively the two ends, left and right that are bolted to base plate (1), are wound around mould (4) top and bottom and are processed with screwed hole, are connected respectively with left axle head (5) with the threaded one end of right axle head (6), the barrel that is wound around mould (4) is distributed with 24 grooves, 24 groove equispaceds, barrel inside is processed with four slideways, shell portion groove milling corresponding to slideway moving line, insert (21) be T word shape, four insert (21) are installed on respectively and are wound around on 4 inner slideways of mould (4), (21) bottom surface of inserting is inclined-plane, equally spaced backstay has been assigned at (21) top of inserting, push rod (20) equates with (21) group bottom surface gradient of inserting, by manual adjustments push rod (20) axial feeding, control backstay height, the other end of left axle head (5) coordinates with the bearing (7) being fixed on left support plate (2), cam (13) is arranged on the other end of right axle head (6), has the slideway (14) of two sinusoidal shapes on the periphery of cam (13), upper heald rod (17) and lower heald rod (18) form heald rod, and heald rod has eight groups, and the upper heald rod (17) in every group is controlled odd number root fiber movement, and lower heald rod (18) is controlled even number root fiber movement, top shoe (15) and sliding block (16) form slide block, slide block has eight groups, upper heald rod (17) is fixing with top shoe (15), lower heald rod (18) is fixing with sliding block (16), coordinate with the interporal lacuna of top shoe (15), it is upper that retainer ring (19) is arranged on base plate (1), and eight columns on its surface coordinate with the interporal lacuna of sliding block (16), and at upper and lower two slideways (14), the circumferential rotation along with cam (13) slides up and down respectively for top shoe (15) and sliding block (16), driving tooth in right axle head (6) while mounting teeth wheels (8), the other end of right axle head (6) be fixed on the bearing fit on right support plate (3), driven tooth in gear train (8) is fixed on leading screw (9), closely mesh with driving tooth, screw mandrel (9) two ends coordinate with left support plate (2) and right support plate (3) respectively, there is screw thread at connecting rod (10) two ends, use nut to be fixed on left support plate (2) and right support plate (3), give silk mouthful (11) bottom and screw mandrel (9) threaded engagement, middle part and connecting rod (10) matched in clearance, screw mandrel (9) is given a movement locus of mouthful (11) with the common constraint of connecting rod (10), rocking bar (12) is fixedly connected with right axle head (6).
2. a variable cross-section thin-walled taper carbon fabric perform forming method that adopts device described in claim 1, is characterized in that comprising the following steps:
Step 1: ground floor is used carbon fiber one-way cloth to cover along mould paving; Carbon fiber one-way cloth is cut into rectangle according to variable cross-section thin-walled taper precast body size, fiber direction is axially consistent with variable cross-section thin-walled taper precast body, according to cylindrical section, conical cylinder section, upper and lower flange dimension cutting unidirectional cloth, make it along being wound around mould (4) paving, cover the complete shape that a circle forms variable cross-section thin-walled taper precast body; Upper flange part, along unidirectional cloth fiber axis to cutting into small fragment, inwardly turnover forms flange reinforced partly body piecemeal, and lower flange outwards turns down, and then with fibre bundle, sews up it is fitted tightly on winding mould (4);
Step 2: the second layer is used fibre bundle hoop to be wound around sizing; The silk thread feeding that fibre bundle is wound around in type-approval process adopts gear-screw mechanism quantitatively to control, and by change gear ratio, guide screw lead, realizes different winding forms; Fibre bundle is fixed on to cylindrical section bottom, manual rotation rocking bar (12) drives and is wound around mould (4) rotation, driving tooth rotates with the axis, drive driven tooth is rotated, leading screw (9) is converted into the axially-movable to silk mouth (11) by rotation, when being wound around mould (4) rotation, is with kinetodesma to pave uniformly on outer wall; The number of teeth of setting driving tooth equates with driven tooth, and the helical pitch of leading screw (9) equals fibre bundle width, that is: fibre bundle hoop winding one is enclosed, the distance of the fibre bundle width of axially passing by; Be wound to conical cylinder section, manual adjustments push rod (20) axial feeding, controls backstay height, the silk thread damage of avoiding the silk thread landing that causes because of backstay insufficient height and backstay excessive height to cause, be wound to end anchoring fiber bundle, complete the sizing of fibre bundle uniform winding;
Step 3: step 1, step 2 hocket; Odd-level is used carbon fiber one-way cloth to cover along mould paving, even level is used fibre bundle hoop to be wound around sizing, until reach variable cross-section thin-walled taper precast body required thickness, often carries out before next step operation, manual adjustments push rod (20) axial feeding, controls backstay height;
Step 4: use fibre bundle to carry out improvement type locking-type high density to variable cross-section thin-walled taper precast body and radially sew up, sewing density is controlled at 5～17 pins/cm
2;
Step 5: fibre bundle control of two-dimensional braided, realize precast body top layer and reinforce; Cut out fibre bundle as axial direction fibre from precast body Base top contact, the low side of odd number fibre bundle is fixed in upper heald rod (17), in the lower heald rod (18) that even number fibre bundle is fixed on the same group, in cam rotation process, between even number fibre bundle and odd number fibre bundle, produce a difference in height, parallel passes between odd even fibre bundle, completes hoop for the first time and is wound around, and is rotated further rocking bar, odd even fiber up-down alternative motion, reinforces until complete the outermost braiding of reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310713311.8A CN103707521B (en) | 2013-12-20 | 2013-12-20 | Variable cross-section thin-wall conical prefabricated carbon fiber body forming device and method |
Applications Claiming Priority (1)
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| CN108218453A (en) * | 2017-12-01 | 2018-06-29 | 中国航空工业集团公司基础技术研究院 | A kind of forming method of thin-walled circular cone cylinder-shaped ceramic based composite material component |
| CN109367050A (en) * | 2018-12-10 | 2019-02-22 | 哈尔滨玻璃钢研究院有限公司 | Vertical winding device and manufacturing method for the high flange cylinder of composite material thin wall |
| CN111848203A (en) * | 2020-07-29 | 2020-10-30 | 上海大学绍兴研究院 | Method and die for net size forming of carbon fiber needling preform |
| CN112810182A (en) * | 2020-12-29 | 2021-05-18 | 江苏新扬新材料股份有限公司 | Forming method of composite material cylindrical support |
| CN113799418A (en) * | 2021-08-23 | 2021-12-17 | 厦门大学 | Preparation method of intelligent composite material bolt, composite material bolt and use method |
| CN113846417A (en) * | 2021-09-17 | 2021-12-28 | 天津工业大学 | Automatic molding indexing device for carbon fiber composite prefabricated body |
| CN113858650A (en) * | 2020-06-30 | 2021-12-31 | 中国航发商用航空发动机有限责任公司 | Method for manufacturing composite annular parts |
| CN114044676A (en) * | 2021-11-19 | 2022-02-15 | 西北工业大学 | Ceramic matrix composite heat shield and preparation method thereof |
| CN114523698A (en) * | 2022-01-17 | 2022-05-24 | 酷黑科技（北京）有限公司 | Sealing connection method and sealing connection device |
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| CN108218453B (en) * | 2017-12-01 | 2021-03-26 | 中国航空工业集团公司基础技术研究院 | Forming method of thin-wall conical cylindrical ceramic matrix composite component |
| CN108218453A (en) * | 2017-12-01 | 2018-06-29 | 中国航空工业集团公司基础技术研究院 | A kind of forming method of thin-walled circular cone cylinder-shaped ceramic based composite material component |
| CN109367050A (en) * | 2018-12-10 | 2019-02-22 | 哈尔滨玻璃钢研究院有限公司 | Vertical winding device and manufacturing method for the high flange cylinder of composite material thin wall |
| CN113858650A (en) * | 2020-06-30 | 2021-12-31 | 中国航发商用航空发动机有限责任公司 | Method for manufacturing composite annular parts |
| CN111848203A (en) * | 2020-07-29 | 2020-10-30 | 上海大学绍兴研究院 | Method and die for net size forming of carbon fiber needling preform |
| CN112810182A (en) * | 2020-12-29 | 2021-05-18 | 江苏新扬新材料股份有限公司 | Forming method of composite material cylindrical support |
| CN112810182B (en) * | 2020-12-29 | 2021-11-30 | 江苏新扬新材料股份有限公司 | Forming method of composite material cylindrical support |
| CN113799418A (en) * | 2021-08-23 | 2021-12-17 | 厦门大学 | Preparation method of intelligent composite material bolt, composite material bolt and use method |
| CN113846417A (en) * | 2021-09-17 | 2021-12-28 | 天津工业大学 | Automatic molding indexing device for carbon fiber composite prefabricated body |
| CN114044676A (en) * | 2021-11-19 | 2022-02-15 | 西北工业大学 | Ceramic matrix composite heat shield and preparation method thereof |
| CN114523698A (en) * | 2022-01-17 | 2022-05-24 | 酷黑科技（北京）有限公司 | Sealing connection method and sealing connection device |
| CN114851595A (en) * | 2022-04-25 | 2022-08-05 | 湖南弘辉科技有限公司 | Forming method of composite material plate and preparation method of catheter support arm |
| CN114851595B (en) * | 2022-04-25 | 2024-01-16 | 湖南弘辉科技有限公司 | Forming method of composite material plate and preparation method of catheter support arm |
| CN116518795A (en) * | 2023-07-03 | 2023-08-01 | 江苏亨睿航空工业有限公司 | Carbon fiber composite satellite supporting cabin and preparation method thereof |
| CN116518795B (en) * | 2023-07-03 | 2023-09-15 | 江苏亨睿航空工业有限公司 | Carbon fiber composite satellite supporting cabin and preparation method thereof |
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