CN207452399U - A kind of non-woven fabrics manufacturing machine - Google Patents
A kind of non-woven fabrics manufacturing machine Download PDFInfo
- Publication number
- CN207452399U CN207452399U CN201720951483.2U CN201720951483U CN207452399U CN 207452399 U CN207452399 U CN 207452399U CN 201720951483 U CN201720951483 U CN 201720951483U CN 207452399 U CN207452399 U CN 207452399U
- Authority
- CN
- China
- Prior art keywords
- silk
- woven fabrics
- wire
- manufacturing machine
- wire feeder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
Non-woven fabrics manufacturing machine, Jie Ju components described in the utility model and operation principle are differed with existing non-woven fabrics manufacturing machine:Endless tow raw material, silk is caught in oblique angle to parallel between warp-wise, broadwise, longitude and latitude, no bending, the wire drawing of the silk wired, arranged in parallel of silk arranged in parallel, it is automatic place interlayer be chopped silk, spray adhesive, automatic shredding, the solid silk of viscose paper band bonding automatically;All it is newly to found to put, moreover it is possible to produce nonwoven prepreg cloth;Main efficacy results:Almost not damaged to silk quality, high efficiency, low cost, breadth are freely set in production process, the silk number of plies or are put in order and can freely be set in cloth;The non-woven fabrics of the utility model manufacture, including carbon fiber nonwoven fabric, reinforcement material including being used for plastics base, ceramic base, manufactured composite fiber silk density increases, tension strength increases, increases anti-twist strength newly, increases shearing strength between layers, and have a wide range of application model.
Description
Technical field
The utility model is related to a kind of non-woven fabrics manufacturing machine and its manufacturing methods and principle.
Background technology
Non-woven fabrics manufacturing field mainly using flat flexible material, generates hole to form nonwoven by needle-punching method
Cloth, the reinforcement material being not suitable for use in high strength composite;What it is currently as main reinforcing material is carbon fiber, glass
Fiber interweaving cloth and the multidirectional cloth of warp knit.Because of interwoven, the bending generated that interweaves, make stretch-proofBy forcePower declines, gap increases and base
Material increases, weight increases, without through broadwise oblique angle direction stretch-proof strength.The multidirectional cloth of warp knit, the bending generated by braiding make to resist
Tensile strength declines, gap increases and base material increases, weight increases, and litzendraht wire makes low through broadwise tensile strength.It is existing various
Manufacture machine of cloth and preparation method thereof is manufactured, for manufacturing adding in high strength compositeBy forceMaterial cloth, all there are upper
State serious defect problem.
The content of the invention
Technical problems to be solved:Utility model is related to a kind of non-woven fabrics manufacturing machine and its manufacturing method principle, described
Non-woven fabrics manufacturing machine for manufacturing using endless tow, including long individual thread, the silk thread that is chopped, including the reinforcement in composite material
Material:Carbon fiber filament beam, aramid fiber long filament, filament of glass fiber further include 2 kinds and the mixing arrangement of more than long filament, system
Cause Multi-way multi-layer non-woven fabrics, the non-woven fabrics manufacturing machine, including each major part constructional device and effect, the system
Method And Principle is made, is the manufacture operation principle of machine, includes the work operation logic of each major part constructional device.
The utility model is related to a kind of non-woven fabrics manufacturing machine, it is characterized in that a rectangle flat shape face platform is provided with, it is described
Flat shape face platform one end is provided with warp-wise wire feeder, the other end is provided with cloth-rolling device;The elongated side one side of the platform is set
Left oblique angle is put to wire feeder, right oblique angle to wire feeder, broadwise wire feeder, the opposite side of angle corresponding with respective device
Wire-drawing frame;1 and above press-roller device are additionally provided in the platform, sizing is in baking oven device or preimpregnation cloth apparatus
Any device, the platform other end are provided with cloth-rolling device.
The warp-wise wire feeder, it is characterized in that including wire feeding axis, reed, the silk laying apparatus that is chopped, spraying adhesive
Device.
The left oblique angle is to wire feeder, and right oblique angle is to wire feeder, broadwise wire feeder, it is characterized in that including wire feed
Axis, reed, wire pressing device, cut-out silk device, viscose paper consolidate silk device, viscose paper disconnecting device.
The wire-drawing frame, it is characterized in that the thread nipper assembly including silk arranged in parallel, the silk laying apparatus of being chopped, spray it is viscous
Mixture device, each device can be moved back and forth alone by one side to opposite side.
Wire feeding axis of the left oblique angle to wire feeder, right oblique angle into wire feeder, it is characterized in that trapezoidal small silk axis
Several small silk axis are put into echelon formation mode by device by wire-drawing direction.
The cut-out silk device, it is characterized in that the circular shear blade rotated is can to rise and decline, mobile cutting wire layer.
The left oblique angle is to wire feeder, and right oblique angle is to wire feeder, it is characterized in that reed is made of several thin slices,
Thin slice intermediate gap direction is along left oblique angle to, right tiltedly angular orientation arrangement.
The wire pressing device is set it is characterized in that arranging width according to silk, and two parallel fixed dresses are set along platform side
It puts, the upper fixing device of each device point and corresponding lower fixing device, upper and lower fixing device have steel bar, and steel bar side is equipped with rubber
Adhesive tape, rubber strip are used to compress tow;Leave gap between two fixed structures, two upper fixed structures can independently rise and
Decline, by under near that in platform side it is fixed can raising and lowering, be flute profile between two parallel constructions.
The viscose paper consolidates silk device, viscose paper disconnecting device, it is characterized in that chasing-attachment both sides, being respectively arranged with can
The viscose paper roll of tape of lifting, chasing-attachment operation front end, is provided with cut paper lifting gear, is used to cut off including more toothed blades
Viscose paper band makes the silk segmentation of silk layer side be adhesively fixed on viscose paper band.
The chopped silk laying apparatus it is characterized in that planar structure can move back and forth alone, from one side to opposite side, is put down
In the structure of face is to have slot conveyer belt, and energy levels cycle rotation, conveyer belt uses soft material, has several grooves in plane,
Groove location is corresponding with tow clearance position, and the silk that is chopped is placed in groove, and the plane of groove places chopped silk on a small quantity, will be short
Chopping is layed in tow layer space and on plane silk layer.
The thread nipper assembly, it is characterized in that tow folder is the parallel folder of cross open, it is parallel to accompany two steel bars, two
Steel bar side is equipped with rubber strip, and parallel folder is mounted on the device that can be moved back and forth alone, and device can be run from the one side of platform
To opposite side, the after-opening that tow arranged in parallel runs back opposite side is clamped from wire feeder one side, discharges tow.
The spraying adhesive device, it is characterized in that liquid adhesive passes under pressure through circle by pore on pipeline
Hole forms vaporific, including drop-wise, uniformly sprays on tow layer plane, pipeline is fixed on frame, and frame is arranged in wire-drawing frame.
The wire feeder and respective corresponding wire-drawing frame, it is characterized in that sequence of positions is free setting.
The preimpregnation cloth apparatus, it is characterized in that liquid base is penetrated into each silk layer.
Superiority:Current any non-woven fabrics machine and interwoven machine, tricot machine cannot all produce the length that the present invention is produced
Tow non-woven fabrics, Jie Ju components and operation principle differ completely, and current all kinds of cloth machines are in process of production all to silk quality
Apparent damage is generated, silk is caught in oblique angle to parallel between the utility model warp-wise, broadwise, longitude and latitude, no bending, silk arranged in parallel
The wire drawing of silk wired, arranged in parallel, it is automatic place interlayer be chopped silk, spray adhesive automatically, automatic shredding, viscose paper band glue
Connect solid silk;All it is newly to found to put, moreover it is possible to produce nonwoven prepreg cloth;The effect of generation:It is almost lossless to silk quality in production process
Wound, high efficiency, low cost, breadth are freely set, and the silk number of plies or are put in order and can freely be set in cloth;The utility model system
The non-woven fabrics made, including carbon fiber nonwoven fabric, the reinforcement material including being used for plastics base, ceramic base, manufactured composite material fibre
The increase of silk density, the increase of tension strength are tieed up, anti-twist strength is increased newly, increases shearing strength between layers, have a wide range of application model.
Description of the drawings:
Fig. 1 is non-woven fabrics machine schematic top plan view
Fig. 2 is non-woven fabrics machine schematic side view
Fig. 3 is let-off motion schematic side view
Fig. 4 is that wire feeder coordinates side schematic view with wire-drawing frame
Fig. 5 is oblique angle trapezoidal small silk axis placement position schematic diagram into wire feeder
Fig. 6 is wire feeder side schematic view
Fig. 7 is oblique angle a plurality of conveyer belt schematic top plan view into wire-drawing frame
Fig. 8 is viscose paper band blade schematic diagram
In figure:
Rectangle flat shape table top;2nd, elongated side;3rd, end face;4th, warp-wise let-off motion;5th, cloth-rolling device;6th, left oblique angle to
Wire feeder;7th, right oblique angle is to wire feeder;8th, broadwise wire feeder;9th, left oblique angle is to wire-drawing frame;10th, right oblique angle is to wire drawing
Device;11st, broadwise wire-drawing frame;12nd, press-roller device;13rd, baking oven;14th, flat shape important actor;15th, wire feeding axis;16th, silk;17th, reed;
18th, tape holder is transmitted;19th, there is slot conveyer belt;20th, guide wheel;21st, nozzle tube yoke;22nd, jet pipe;23 small axis;24th, it is trapezoidal to put;25、
Wire feeder lower cage;26th, lower inside steel bar;27th, lower outside steel bar;28th, rubber strip;29th, wire feeder upper shelf;
30th, upper inner steel bar;31st, upper outside steel bar;32nd, chasing-attachment;33rd, chopping circular shear blade;34th, left oblique angle is to transmission
Band;35th, right oblique angle is to conveyer belt;36 viscose papers;37th, hand papercutter horse;38th, paper cutting blade;39th, spring;40th, wired frame;41、
Silk folder control device;42nd, silk presss from both sides;43rd, wire feeder;44th, wire-drawing frame
Specific embodiment:
It is explained in detail with reference to embodiments for the utility model:
As shown in Figures 1 to 8:The utility model embodiment is a kind of non-woven fabrics manufacturing machine and its manufacturing method and principle,
The non-woven fabrics machine is used for the reinforcement material in composite material mainly for the manufacture of endless tow non-woven fabrics, the non-woven fabrics,
The reinforcement material includes raw material using endless tow, including carbon fiber filament beam, aramid fiber tow, filament of glass fiber Shu Wufang
Cloth, moreover it can be used to which manufacture is not intended to the universal non-woven fabrics of reinforcement material in composite material, and the universal non-woven fabrics is former
Material endless tow further includes chopped silk thread, the thread non-woven fabrics of silk union.
The non-woven fabrics manufacturing machine is provided with rectangular platform face 1, there is parallel important actor 14, rectangular platform both ends of the surface 3
One end be provided with warp-wise wire feeder 4, other end is provided with cloth-rolling device 5;One in the elongated side 2 of rectangular platform
Side is provided with wire feeder 43, including left oblique angle to wire feeder 6 and corresponding left oblique angle to wire-drawing frame 9, right oblique angle
To wire feeder 7 and corresponding right oblique angle wire-drawing frame 10, left oblique angle adjacent afterwards is provided with latitude to wire feeder one side
To wire feeder 8, broadwise wire-drawing frame 11 corresponding thereto is provided with more press-roller devices 12, on platform on platform
It is provided with baking oven 13 or preimpregnation cloth apparatus, other end sets cloth-rolling device.
The warp-wise let-off motion includes being sent out warpwise silk 16 by wire feeding axis 15, and organizine is by reed 17, and silk is by setting
Arrangement ratio space is counted, reed tooth does not wear silk in space, afterwards by being already connected to the rectangular platform other end with one piece
Fabric connection on cloth beam, is rotated by enclosing cloth beam, organizine is rolled up on cloth beam;On transmission tape holder 18, it has been provided with
Slot conveyer belt 19, guide wheel 20 is described to have slot conveyer belt forming shuttling movement by guide wheel, in the slot having in slot conveyer belt
Chopped silk is placed with, the outer parallel surface of slot is also placed with a little pipe nipple silk, when organizine is run to the other end, has slot conveyer belt synchronously to turn
Dynamic operation, the spacing of the slot and the spacing that a space is not worn in reed are identical with position, the chopped silk in the slot of the conveyer belt
It falls into the gap in an alignment layer, the silk chopped a little of the outer parallel surface of slot falls on gapless plane silk layer;On nozzle tube yoke 21
Jet pipe 22 is provided with, when silk layer is run, jet pipe sprinkling drop-wise, including vaporific adhesive on silk layer, for by silk layer and silk
Layer is bonding.
The left oblique angle includes several small silk axis 23 to wire feeder, and small silk axis puts 24 by trapezoidal, and position is put suitable
Oblique angle direction silk traffic direction is answered, silk is sent out by small silk axis, and silk is passed through from reed afterwards, is not worn by design arrangement proportional space
Silk, device are provided with wire feeder lower cage 25, lower inside steel bar 26, lower outside steel bar 27, steel are provided in lower cage
Rubber strip 28 on item is installed, is provided with wire feeder upper shelf 29, upper inner steel bar 30 is installed in upper shelf, outside top
Side steel bar 31 is equipped with rubber strip on steel bar;Between the steel bar of upper shelf medial and lateral, be provided with chasing-attachment 32 and configuration
Chopping circular shear blade 33, viscose paper 36, hand papercutter horse 37, paper cutting blade 38, the lower inside steel bar, lower outside steel
Item, upper inner steel bar, lower outside steel bar can be moved with independent lifting, when silk passes through the rubber of the two pairs of openings in outside and inside
After adhesive tape is motionless, lower inside rises with outside steel bar, and upper inner declines with outside steel bar, silk is fixed, in chasing-attachment
It runs before chopping direction, is provided with viscose paper haircuts and fixes silk layer device, be pressed in by 2 viscose paper cylinders on silk layer, viscose glue
Paper cylinder is sticked under 39 active force of spring on silk layer, and fixed tow keeps evenly distributed in post-order process, by multiple tooth
Cut paper section declines, and viscose paper band is cut off.Chopping circular shear blade is declined and is rotated by rotation axis, makes the circular shear blade of rotation
It is run from an elongated side of edge platform of silk layer plane to another side edge, silk layer is all cut off.Upper inner steel bar rise and
Lower inside steel bar declines, and has lain in the cut-out silk layer in flat surface on warpwise silk layer and has been transported to platform other end batching direction of principal axis
Row leaves former cut-out silk layer position, is entered in the wire-drawing frame 44 by wired frame 40, silk folder control device 41 and silk folder 42
It clamps, upper outside steel bar and lower outside steel bar fixed silk layer, afterwards, upper outside steel bar rises, lower outside steel
Item simultaneously declines, and bearing opens, and thread nipper assembly stops after running to table top opposite side, and left oblique angle is arranged to more to conveyer belt 34
A equal angular, the conveyer belt that equal length is arranged side by side, rotate operation, by chopped silk be placed in sky compartment gap with continuously
On gap silk layer, rear jet operation spray.
Right oblique angle is arranged in left oblique angle after wire feeder to wire feeder, is provided with opposite to wire feeder with right oblique angle
The wire-drawing frame that should coordinate, the wire feeder and wire-drawing frame are set and operation principle and left oblique angle are to wire feeder phase
Together, angle is simply set on the contrary, angle is opposite to conveyer belt with left oblique angle set by right oblique angle to conveyer belt 35.
The setting of broadwise wire feeder and wire-drawing frame and operation principle and left and right oblique angle are to wire feeder and wire-drawing frame
Essentially identical, simply design factors are different, and corresponding wire-drawing frame setting and operation principle are engaged with broadwise wire feeder
It is essentially identical to wire-drawing frame with right oblique angle, it simply runs parallel, without oblique angle to setting.
Press-roller device afterwards, pressure are adjustable, conduct oneself with dignity by pressure roller, include the use of spring assembly.
The temperature of baking oven is adjustable, using electrothermal, further includes and cures adhesive using natural temperature, save baking oven
Device.
Or baking oven is not provided with, it changes to presoak cloth apparatus, liquid base is made to penetrate into each silk layer of non-woven fabrics.
Claims (14)
1. a kind of non-woven fabrics manufacturing machine, the manufacturing machine is provided with a rectangle flat shape face platform, described flat shape face platform one end
It is provided with warp-wise wire feeder, the other end is provided with cloth-rolling device;It is characterized in that the elongated side one side of the platform sets a left side tiltedly
Angular wire feeder, right oblique angle are to wire feeder, broadwise wire feeder, the wire drawing of the opposite side of angle corresponding with respective device
Device;1 and above press-roller device are additionally provided in the platform, sizing is with baking oven device or presoaks any in cloth apparatus
Device.
2. a kind of non-woven fabrics manufacturing machine according to claim 1, it is characterized in that warp-wise wire feeder further includes wire feeding axis, steel
Reed, the silk laying apparatus that is chopped spray adhesive device.
3. non-woven fabrics manufacturing machine according to claim 1, it is characterized in that left oblique angle, to wire feeder, right oblique angle is filled to wire feed
Put, broadwise wire feeder further includes wire feeding axis, reed, wire pressing device, cut-out silk device, viscose paper consolidates silk device, viscose paper is cut
Disconnected device.
4. a kind of non-woven fabrics manufacturing machine according to claim 1, it is characterized in that wire-drawing frame, further includes silk arranged in parallel
Thread nipper assembly, the silk laying apparatus that is chopped spray adhesive device, and each device can be transported back and forth alone by one side to opposite side
It is dynamic.
5. a kind of non-woven fabrics manufacturing machine according to claim 3, it is characterized in that the left oblique angle is oblique to wire feeder, the right side
Wire feeding axis in angular wire feeder, it is trapezoidal small silk shaft device to further include, and several small silk axis are put into ladder by wire-drawing direction
Shape arrangement mode.
6. a kind of non-woven fabrics manufacturing machine according to claim 3, it is characterized in that the cut-out silk device further includes rotation
Circular shear blade be that can rise and decline, mobile cutting wire layer.
7. a kind of non-woven fabrics manufacturing machine according to claim 3, it is characterized in that the left oblique angle is oblique to wire feeder, the right side
Angular wire feeder further includes reed and is made of several thin slices, and thin slice intermediate gap direction is along left oblique angle to, right oblique angular orientation
Arrangement.
8. a kind of non-woven fabrics manufacturing machine according to claim 3, it is characterized in that the wire pressing device is further included according to silk
It arranges width to set, two parallel fixing devices, the upper fixing device of each device point and corresponding lower fixation is set along platform side
Device, upper and lower fixing device have steel bar, and steel bar side is equipped with rubber strip, and rubber strip is used to compress tow;Two fixed structures
Between leave gap, two upper fixed structures can independent raising and lowering, can rise by fixation under near that in platform side
And decline, it is flute profile between two parallel constructions.
9. a kind of non-woven fabrics manufacturing machine according to claim 3, it is characterized in that the viscose paper consolidates silk device, viscose paper
Disconnecting device further includes chasing-attachment both sides, is respectively arranged with liftable viscose paper roll of tape, and chasing-attachment runs front end,
Cut paper lifting gear is provided with, including more toothed blades for cutting off viscose paper band, the silk segmentation of silk layer side is made to be adhesively fixed in viscous
On masking tape.
10. a kind of non-woven fabrics manufacturing machine according to claim 2 or 4, it is characterized in that the chopped silk laying apparatus is also
It can be moved back and forth alone including planar structure, from one side to opposite side, in planar structure is to have slot conveyer belt, and energy levels are followed
Ring rotates, and conveyer belt uses soft material, has several grooves in plane, groove location is corresponding with tow clearance position, groove
Interior to place the silk that is chopped, the plane of groove places chopped silk on a small quantity, and chopped silk is layed in tow layer space and plane silk layer
On.
11. a kind of non-woven fabrics manufacturing machine according to claim 4, it is characterized in that the thread nipper assembly further includes and wired is
The parallel folder of cross open, parallel to accompany two steel bars, two steel bar sides are equipped with rubber strip, and parallel folder is mounted on can be past alone
On the device moved again, device can be run from the one side of platform to opposite side, and tow arranged in parallel is clamped from wire feeder one side
The after-opening of opposite side is run back, discharges tow.
12. a kind of non-woven fabrics manufacturing machine according to claim 2 or 4, it is characterized in that the spraying adhesive device is also
Including liquid adhesive by pore on pipeline, pass under pressure through circle hole shape and nebulize, including drop-wise, uniformly spray in tow
On layer plane, pipeline is fixed on frame, and frame is arranged in wire-drawing frame.
13. a kind of non-woven fabrics manufacturing machine according to claim 1, it is characterized in that wire feeder is filled with each corresponding wire drawing
It puts, it is free setting to further include the wire feeder with respective corresponding wire drawing sequence of positions.
14. a kind of non-woven fabrics manufacturing machine according to claim 1, it is characterized in that further including preimpregnation cloth apparatus, described is pre-
It is to penetrate into liquid base in each silk layer to soak cloth apparatus.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720951483.2U CN207452399U (en) | 2017-08-01 | 2017-08-01 | A kind of non-woven fabrics manufacturing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720951483.2U CN207452399U (en) | 2017-08-01 | 2017-08-01 | A kind of non-woven fabrics manufacturing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
CN207452399U true CN207452399U (en) | 2018-06-05 |
Family
ID=62248957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720951483.2U Active CN207452399U (en) | 2017-08-01 | 2017-08-01 | A kind of non-woven fabrics manufacturing machine |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN207452399U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020019677A1 (en) * | 2018-06-28 | 2020-01-30 | 杭州友凯船艇有限公司 | Multifunctional filament fabric |
-
2017
- 2017-08-01 CN CN201720951483.2U patent/CN207452399U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020019677A1 (en) * | 2018-06-28 | 2020-01-30 | 杭州友凯船艇有限公司 | Multifunctional filament fabric |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3756893A (en) | Nonwoven structure and method and apparatus for producing it | |
US3761345A (en) | Nonwoven structure for reinforcing resinous material | |
US3044146A (en) | Composite fibrous glass bodies | |
US5149583A (en) | Oriented thread structure and a method for manufacturing same | |
CN105015105B (en) | A kind of polyaxial composite base material manufacture method | |
EP3714091B1 (en) | Unidirectional laid nonwoven and use thereof | |
KR20120096057A (en) | Method for the continuous production of laid staple fibre fabrics from finitely long reinforcing fibres with aligned fibre orientation | |
CN207452399U (en) | A kind of non-woven fabrics manufacturing machine | |
CN107245812A (en) | A kind of non-woven fabrics manufacturing machine | |
US3230599A (en) | Method of producing needled felts | |
CN111070733A (en) | Processing method for weaving fiber tows into ultrathin braided fabric | |
CN102418232B (en) | Wave-absorbing weaving piece of compound bar with carbon filaments arranged in buckling and extending manner and preparation method thereof | |
CN106048874B (en) | A kind of production system and method for shuffling one-way fabric | |
US3150026A (en) | Apparatus for placing and bonding weft strands to continuous warp strands | |
CN201483839U (en) | Glass fiber and polyester non-woven fabric compound knitted chopped strand mat | |
CN205046271U (en) | Multiaxis is to compound substrate production line | |
CN204780115U (en) | Multi -axial warp knitting machine | |
CN210368408U (en) | Non-woven fabric fixed-length shearing device | |
CN211054593U (en) | Compound design perforating device of non-woven fabrics | |
WO2021103251A1 (en) | Consolidation method of multi-layer multi-directional flexible material with any fiber direction | |
US3718954A (en) | Method for producing a nonwoven reinforcement structure | |
IE47747B1 (en) | Self-lined fabric,and method and apparatus for making thereof | |
CN86102352A (en) | Producing GFRP ply-board new technology and equipment thereof | |
CN105040256A (en) | Warp-knitted corduroy shell fabric and processing equipment thereof | |
CN109518340A (en) | A kind of fiber multi-angle braiding composite felt and its manufacturing method and manufacturing device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |